e5f5ac7d2b
Make use of %IsAsmWasmCode in place of Wasm.instantiateModuleFromAsm,
in order to reduce the surface area of the Wasm object,
and to focus on testing asm.js coming in via the parser.
Ignore extra CONST_LEGACY assignment introduced by the parser
when modules have the form:
(function Foo(a, b, c) {..});
This requires both a validator and AsmWasmBuilder change.
Move stdlib use collection to import time,
to reject modules that import a function, even if not used.
BUG= https://bugs.chromium.org/p/v8/issues/detail?id=4203
LOG=N
R=jpp@chromium.org,titzer@chromium.org
Review-Url: https://codereview.chromium.org/2264913002
Cr-Commit-Position: refs/heads/master@{#38806}
5982 lines
220 KiB
JavaScript
5982 lines
220 KiB
JavaScript
// Modified embenchen to direct to asm-wasm.
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// Flags: --validate-asm --allow-natives-syntax
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var EXPECTED_OUTPUT = 'sum:8930\n';
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var Module = {
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arguments: [1],
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print: function(x) {Module.printBuffer += x + '\n';},
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preRun: [function() {Module.printBuffer = ''}],
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postRun: [function() {
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assertEquals(EXPECTED_OUTPUT, Module.printBuffer);
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}],
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};
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// The Module object: Our interface to the outside world. We import
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// and export values on it, and do the work to get that through
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// closure compiler if necessary. There are various ways Module can be used:
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// 1. Not defined. We create it here
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// 2. A function parameter, function(Module) { ..generated code.. }
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// 3. pre-run appended it, var Module = {}; ..generated code..
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// 4. External script tag defines var Module.
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// We need to do an eval in order to handle the closure compiler
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// case, where this code here is minified but Module was defined
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// elsewhere (e.g. case 4 above). We also need to check if Module
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// already exists (e.g. case 3 above).
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// Note that if you want to run closure, and also to use Module
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// after the generated code, you will need to define var Module = {};
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// before the code. Then that object will be used in the code, and you
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// can continue to use Module afterwards as well.
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var Module;
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if (!Module) Module = (typeof Module !== 'undefined' ? Module : null) || {};
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// Sometimes an existing Module object exists with properties
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// meant to overwrite the default module functionality. Here
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// we collect those properties and reapply _after_ we configure
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// the current environment's defaults to avoid having to be so
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// defensive during initialization.
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var moduleOverrides = {};
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for (var key in Module) {
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if (Module.hasOwnProperty(key)) {
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moduleOverrides[key] = Module[key];
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}
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}
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// The environment setup code below is customized to use Module.
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// *** Environment setup code ***
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var ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'function';
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var ENVIRONMENT_IS_WEB = typeof window === 'object';
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var ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
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var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
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if (ENVIRONMENT_IS_NODE) {
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// Expose functionality in the same simple way that the shells work
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// Note that we pollute the global namespace here, otherwise we break in node
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if (!Module['print']) Module['print'] = function print(x) {
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process['stdout'].write(x + '\n');
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};
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if (!Module['printErr']) Module['printErr'] = function printErr(x) {
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process['stderr'].write(x + '\n');
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};
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var nodeFS = require('fs');
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var nodePath = require('path');
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Module['read'] = function read(filename, binary) {
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filename = nodePath['normalize'](filename);
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var ret = nodeFS['readFileSync'](filename);
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// The path is absolute if the normalized version is the same as the resolved.
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if (!ret && filename != nodePath['resolve'](filename)) {
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filename = path.join(__dirname, '..', 'src', filename);
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ret = nodeFS['readFileSync'](filename);
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}
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if (ret && !binary) ret = ret.toString();
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return ret;
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};
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Module['readBinary'] = function readBinary(filename) { return Module['read'](filename, true) };
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Module['load'] = function load(f) {
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globalEval(read(f));
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};
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Module['arguments'] = process['argv'].slice(2);
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module['exports'] = Module;
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}
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else if (ENVIRONMENT_IS_SHELL) {
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if (!Module['print']) Module['print'] = print;
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if (typeof printErr != 'undefined') Module['printErr'] = printErr; // not present in v8 or older sm
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if (typeof read != 'undefined') {
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Module['read'] = read;
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} else {
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Module['read'] = function read() { throw 'no read() available (jsc?)' };
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}
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Module['readBinary'] = function readBinary(f) {
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return read(f, 'binary');
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};
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if (typeof scriptArgs != 'undefined') {
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Module['arguments'] = scriptArgs;
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} else if (typeof arguments != 'undefined') {
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Module['arguments'] = arguments;
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}
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this['Module'] = Module;
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eval("if (typeof gc === 'function' && gc.toString().indexOf('[native code]') > 0) var gc = undefined"); // wipe out the SpiderMonkey shell 'gc' function, which can confuse closure (uses it as a minified name, and it is then initted to a non-falsey value unexpectedly)
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}
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else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
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Module['read'] = function read(url) {
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var xhr = new XMLHttpRequest();
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xhr.open('GET', url, false);
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xhr.send(null);
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return xhr.responseText;
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};
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if (typeof arguments != 'undefined') {
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Module['arguments'] = arguments;
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}
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if (typeof console !== 'undefined') {
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if (!Module['print']) Module['print'] = function print(x) {
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console.log(x);
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};
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if (!Module['printErr']) Module['printErr'] = function printErr(x) {
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console.log(x);
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};
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} else {
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// Probably a worker, and without console.log. We can do very little here...
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var TRY_USE_DUMP = false;
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if (!Module['print']) Module['print'] = (TRY_USE_DUMP && (typeof(dump) !== "undefined") ? (function(x) {
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dump(x);
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}) : (function(x) {
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// self.postMessage(x); // enable this if you want stdout to be sent as messages
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}));
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}
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if (ENVIRONMENT_IS_WEB) {
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window['Module'] = Module;
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} else {
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Module['load'] = importScripts;
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}
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}
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else {
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// Unreachable because SHELL is dependant on the others
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throw 'Unknown runtime environment. Where are we?';
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}
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function globalEval(x) {
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eval.call(null, x);
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}
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if (!Module['load'] == 'undefined' && Module['read']) {
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Module['load'] = function load(f) {
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globalEval(Module['read'](f));
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};
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}
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if (!Module['print']) {
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Module['print'] = function(){};
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|
}
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if (!Module['printErr']) {
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Module['printErr'] = Module['print'];
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}
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if (!Module['arguments']) {
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Module['arguments'] = [];
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}
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// *** Environment setup code ***
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// Closure helpers
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Module.print = Module['print'];
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Module.printErr = Module['printErr'];
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// Callbacks
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Module['preRun'] = [];
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Module['postRun'] = [];
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// Merge back in the overrides
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for (var key in moduleOverrides) {
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if (moduleOverrides.hasOwnProperty(key)) {
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Module[key] = moduleOverrides[key];
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}
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}
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// === Auto-generated preamble library stuff ===
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//========================================
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// Runtime code shared with compiler
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//========================================
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var Runtime = {
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stackSave: function () {
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return STACKTOP;
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},
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stackRestore: function (stackTop) {
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STACKTOP = stackTop;
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},
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forceAlign: function (target, quantum) {
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quantum = quantum || 4;
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if (quantum == 1) return target;
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if (isNumber(target) && isNumber(quantum)) {
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return Math.ceil(target/quantum)*quantum;
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} else if (isNumber(quantum) && isPowerOfTwo(quantum)) {
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return '(((' +target + ')+' + (quantum-1) + ')&' + -quantum + ')';
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}
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return 'Math.ceil((' + target + ')/' + quantum + ')*' + quantum;
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},
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isNumberType: function (type) {
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return type in Runtime.INT_TYPES || type in Runtime.FLOAT_TYPES;
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},
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isPointerType: function isPointerType(type) {
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return type[type.length-1] == '*';
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},
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|
isStructType: function isStructType(type) {
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|
if (isPointerType(type)) return false;
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|
if (isArrayType(type)) return true;
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if (/<?\{ ?[^}]* ?\}>?/.test(type)) return true; // { i32, i8 } etc. - anonymous struct types
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// See comment in isStructPointerType()
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return type[0] == '%';
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},
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INT_TYPES: {"i1":0,"i8":0,"i16":0,"i32":0,"i64":0},
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FLOAT_TYPES: {"float":0,"double":0},
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or64: function (x, y) {
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var l = (x | 0) | (y | 0);
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var h = (Math.round(x / 4294967296) | Math.round(y / 4294967296)) * 4294967296;
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return l + h;
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},
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and64: function (x, y) {
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var l = (x | 0) & (y | 0);
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var h = (Math.round(x / 4294967296) & Math.round(y / 4294967296)) * 4294967296;
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return l + h;
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},
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xor64: function (x, y) {
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var l = (x | 0) ^ (y | 0);
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var h = (Math.round(x / 4294967296) ^ Math.round(y / 4294967296)) * 4294967296;
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return l + h;
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},
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|
getNativeTypeSize: function (type) {
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|
switch (type) {
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|
case 'i1': case 'i8': return 1;
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case 'i16': return 2;
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case 'i32': return 4;
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case 'i64': return 8;
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|
case 'float': return 4;
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case 'double': return 8;
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default: {
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if (type[type.length-1] === '*') {
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return Runtime.QUANTUM_SIZE; // A pointer
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|
} else if (type[0] === 'i') {
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var bits = parseInt(type.substr(1));
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assert(bits % 8 === 0);
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return bits/8;
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} else {
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return 0;
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}
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}
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}
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},
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|
getNativeFieldSize: function (type) {
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return Math.max(Runtime.getNativeTypeSize(type), Runtime.QUANTUM_SIZE);
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},
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|
dedup: function dedup(items, ident) {
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var seen = {};
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if (ident) {
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|
return items.filter(function(item) {
|
|
if (seen[item[ident]]) return false;
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seen[item[ident]] = true;
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return true;
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});
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} else {
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|
return items.filter(function(item) {
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if (seen[item]) return false;
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seen[item] = true;
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return true;
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});
|
|
}
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},
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|
set: function set() {
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var args = typeof arguments[0] === 'object' ? arguments[0] : arguments;
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|
var ret = {};
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for (var i = 0; i < args.length; i++) {
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ret[args[i]] = 0;
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}
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return ret;
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},
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STACK_ALIGN: 8,
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getAlignSize: function (type, size, vararg) {
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// we align i64s and doubles on 64-bit boundaries, unlike x86
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if (!vararg && (type == 'i64' || type == 'double')) return 8;
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if (!type) return Math.min(size, 8); // align structures internally to 64 bits
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return Math.min(size || (type ? Runtime.getNativeFieldSize(type) : 0), Runtime.QUANTUM_SIZE);
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},
|
|
calculateStructAlignment: function calculateStructAlignment(type) {
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type.flatSize = 0;
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type.alignSize = 0;
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var diffs = [];
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var prev = -1;
|
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var index = 0;
|
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type.flatIndexes = type.fields.map(function(field) {
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index++;
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var size, alignSize;
|
|
if (Runtime.isNumberType(field) || Runtime.isPointerType(field)) {
|
|
size = Runtime.getNativeTypeSize(field); // pack char; char; in structs, also char[X]s.
|
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alignSize = Runtime.getAlignSize(field, size);
|
|
} else if (Runtime.isStructType(field)) {
|
|
if (field[1] === '0') {
|
|
// this is [0 x something]. When inside another structure like here, it must be at the end,
|
|
// and it adds no size
|
|
// XXX this happens in java-nbody for example... assert(index === type.fields.length, 'zero-length in the middle!');
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size = 0;
|
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if (Types.types[field]) {
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alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize);
|
|
} else {
|
|
alignSize = type.alignSize || QUANTUM_SIZE;
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|
}
|
|
} else {
|
|
size = Types.types[field].flatSize;
|
|
alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize);
|
|
}
|
|
} else if (field[0] == 'b') {
|
|
// bN, large number field, like a [N x i8]
|
|
size = field.substr(1)|0;
|
|
alignSize = 1;
|
|
} else if (field[0] === '<') {
|
|
// vector type
|
|
size = alignSize = Types.types[field].flatSize; // fully aligned
|
|
} else if (field[0] === 'i') {
|
|
// illegal integer field, that could not be legalized because it is an internal structure field
|
|
// it is ok to have such fields, if we just use them as markers of field size and nothing more complex
|
|
size = alignSize = parseInt(field.substr(1))/8;
|
|
assert(size % 1 === 0, 'cannot handle non-byte-size field ' + field);
|
|
} else {
|
|
assert(false, 'invalid type for calculateStructAlignment');
|
|
}
|
|
if (type.packed) alignSize = 1;
|
|
type.alignSize = Math.max(type.alignSize, alignSize);
|
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var curr = Runtime.alignMemory(type.flatSize, alignSize); // if necessary, place this on aligned memory
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|
type.flatSize = curr + size;
|
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if (prev >= 0) {
|
|
diffs.push(curr-prev);
|
|
}
|
|
prev = curr;
|
|
return curr;
|
|
});
|
|
if (type.name_ && type.name_[0] === '[') {
|
|
// arrays have 2 elements, so we get the proper difference. then we scale here. that way we avoid
|
|
// allocating a potentially huge array for [999999 x i8] etc.
|
|
type.flatSize = parseInt(type.name_.substr(1))*type.flatSize/2;
|
|
}
|
|
type.flatSize = Runtime.alignMemory(type.flatSize, type.alignSize);
|
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if (diffs.length == 0) {
|
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type.flatFactor = type.flatSize;
|
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} else if (Runtime.dedup(diffs).length == 1) {
|
|
type.flatFactor = diffs[0];
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}
|
|
type.needsFlattening = (type.flatFactor != 1);
|
|
return type.flatIndexes;
|
|
},
|
|
generateStructInfo: function (struct, typeName, offset) {
|
|
var type, alignment;
|
|
if (typeName) {
|
|
offset = offset || 0;
|
|
type = (typeof Types === 'undefined' ? Runtime.typeInfo : Types.types)[typeName];
|
|
if (!type) return null;
|
|
if (type.fields.length != struct.length) {
|
|
printErr('Number of named fields must match the type for ' + typeName + ': possibly duplicate struct names. Cannot return structInfo');
|
|
return null;
|
|
}
|
|
alignment = type.flatIndexes;
|
|
} else {
|
|
var type = { fields: struct.map(function(item) { return item[0] }) };
|
|
alignment = Runtime.calculateStructAlignment(type);
|
|
}
|
|
var ret = {
|
|
__size__: type.flatSize
|
|
};
|
|
if (typeName) {
|
|
struct.forEach(function(item, i) {
|
|
if (typeof item === 'string') {
|
|
ret[item] = alignment[i] + offset;
|
|
} else {
|
|
// embedded struct
|
|
var key;
|
|
for (var k in item) key = k;
|
|
ret[key] = Runtime.generateStructInfo(item[key], type.fields[i], alignment[i]);
|
|
}
|
|
});
|
|
} else {
|
|
struct.forEach(function(item, i) {
|
|
ret[item[1]] = alignment[i];
|
|
});
|
|
}
|
|
return ret;
|
|
},
|
|
dynCall: function (sig, ptr, args) {
|
|
if (args && args.length) {
|
|
if (!args.splice) args = Array.prototype.slice.call(args);
|
|
args.splice(0, 0, ptr);
|
|
return Module['dynCall_' + sig].apply(null, args);
|
|
} else {
|
|
return Module['dynCall_' + sig].call(null, ptr);
|
|
}
|
|
},
|
|
functionPointers: [],
|
|
addFunction: function (func) {
|
|
for (var i = 0; i < Runtime.functionPointers.length; i++) {
|
|
if (!Runtime.functionPointers[i]) {
|
|
Runtime.functionPointers[i] = func;
|
|
return 2*(1 + i);
|
|
}
|
|
}
|
|
throw 'Finished up all reserved function pointers. Use a higher value for RESERVED_FUNCTION_POINTERS.';
|
|
},
|
|
removeFunction: function (index) {
|
|
Runtime.functionPointers[(index-2)/2] = null;
|
|
},
|
|
getAsmConst: function (code, numArgs) {
|
|
// code is a constant string on the heap, so we can cache these
|
|
if (!Runtime.asmConstCache) Runtime.asmConstCache = {};
|
|
var func = Runtime.asmConstCache[code];
|
|
if (func) return func;
|
|
var args = [];
|
|
for (var i = 0; i < numArgs; i++) {
|
|
args.push(String.fromCharCode(36) + i); // $0, $1 etc
|
|
}
|
|
var source = Pointer_stringify(code);
|
|
if (source[0] === '"') {
|
|
// tolerate EM_ASM("..code..") even though EM_ASM(..code..) is correct
|
|
if (source.indexOf('"', 1) === source.length-1) {
|
|
source = source.substr(1, source.length-2);
|
|
} else {
|
|
// something invalid happened, e.g. EM_ASM("..code($0)..", input)
|
|
abort('invalid EM_ASM input |' + source + '|. Please use EM_ASM(..code..) (no quotes) or EM_ASM({ ..code($0).. }, input) (to input values)');
|
|
}
|
|
}
|
|
try {
|
|
var evalled = eval('(function(' + args.join(',') + '){ ' + source + ' })'); // new Function does not allow upvars in node
|
|
} catch(e) {
|
|
Module.printErr('error in executing inline EM_ASM code: ' + e + ' on: \n\n' + source + '\n\nwith args |' + args + '| (make sure to use the right one out of EM_ASM, EM_ASM_ARGS, etc.)');
|
|
throw e;
|
|
}
|
|
return Runtime.asmConstCache[code] = evalled;
|
|
},
|
|
warnOnce: function (text) {
|
|
if (!Runtime.warnOnce.shown) Runtime.warnOnce.shown = {};
|
|
if (!Runtime.warnOnce.shown[text]) {
|
|
Runtime.warnOnce.shown[text] = 1;
|
|
Module.printErr(text);
|
|
}
|
|
},
|
|
funcWrappers: {},
|
|
getFuncWrapper: function (func, sig) {
|
|
assert(sig);
|
|
if (!Runtime.funcWrappers[func]) {
|
|
Runtime.funcWrappers[func] = function dynCall_wrapper() {
|
|
return Runtime.dynCall(sig, func, arguments);
|
|
};
|
|
}
|
|
return Runtime.funcWrappers[func];
|
|
},
|
|
UTF8Processor: function () {
|
|
var buffer = [];
|
|
var needed = 0;
|
|
this.processCChar = function (code) {
|
|
code = code & 0xFF;
|
|
|
|
if (buffer.length == 0) {
|
|
if ((code & 0x80) == 0x00) { // 0xxxxxxx
|
|
return String.fromCharCode(code);
|
|
}
|
|
buffer.push(code);
|
|
if ((code & 0xE0) == 0xC0) { // 110xxxxx
|
|
needed = 1;
|
|
} else if ((code & 0xF0) == 0xE0) { // 1110xxxx
|
|
needed = 2;
|
|
} else { // 11110xxx
|
|
needed = 3;
|
|
}
|
|
return '';
|
|
}
|
|
|
|
if (needed) {
|
|
buffer.push(code);
|
|
needed--;
|
|
if (needed > 0) return '';
|
|
}
|
|
|
|
var c1 = buffer[0];
|
|
var c2 = buffer[1];
|
|
var c3 = buffer[2];
|
|
var c4 = buffer[3];
|
|
var ret;
|
|
if (buffer.length == 2) {
|
|
ret = String.fromCharCode(((c1 & 0x1F) << 6) | (c2 & 0x3F));
|
|
} else if (buffer.length == 3) {
|
|
ret = String.fromCharCode(((c1 & 0x0F) << 12) | ((c2 & 0x3F) << 6) | (c3 & 0x3F));
|
|
} else {
|
|
// http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
|
|
var codePoint = ((c1 & 0x07) << 18) | ((c2 & 0x3F) << 12) |
|
|
((c3 & 0x3F) << 6) | (c4 & 0x3F);
|
|
ret = String.fromCharCode(
|
|
Math.floor((codePoint - 0x10000) / 0x400) + 0xD800,
|
|
(codePoint - 0x10000) % 0x400 + 0xDC00);
|
|
}
|
|
buffer.length = 0;
|
|
return ret;
|
|
}
|
|
this.processJSString = function processJSString(string) {
|
|
/* TODO: use TextEncoder when present,
|
|
var encoder = new TextEncoder();
|
|
encoder['encoding'] = "utf-8";
|
|
var utf8Array = encoder['encode'](aMsg.data);
|
|
*/
|
|
string = unescape(encodeURIComponent(string));
|
|
var ret = [];
|
|
for (var i = 0; i < string.length; i++) {
|
|
ret.push(string.charCodeAt(i));
|
|
}
|
|
return ret;
|
|
}
|
|
},
|
|
getCompilerSetting: function (name) {
|
|
throw 'You must build with -s RETAIN_COMPILER_SETTINGS=1 for Runtime.getCompilerSetting or emscripten_get_compiler_setting to work';
|
|
},
|
|
stackAlloc: function (size) { var ret = STACKTOP;STACKTOP = (STACKTOP + size)|0;STACKTOP = (((STACKTOP)+7)&-8); return ret; },
|
|
staticAlloc: function (size) { var ret = STATICTOP;STATICTOP = (STATICTOP + size)|0;STATICTOP = (((STATICTOP)+7)&-8); return ret; },
|
|
dynamicAlloc: function (size) { var ret = DYNAMICTOP;DYNAMICTOP = (DYNAMICTOP + size)|0;DYNAMICTOP = (((DYNAMICTOP)+7)&-8); if (DYNAMICTOP >= TOTAL_MEMORY) enlargeMemory();; return ret; },
|
|
alignMemory: function (size,quantum) { var ret = size = Math.ceil((size)/(quantum ? quantum : 8))*(quantum ? quantum : 8); return ret; },
|
|
makeBigInt: function (low,high,unsigned) { var ret = (unsigned ? ((+((low>>>0)))+((+((high>>>0)))*(+4294967296))) : ((+((low>>>0)))+((+((high|0)))*(+4294967296)))); return ret; },
|
|
GLOBAL_BASE: 8,
|
|
QUANTUM_SIZE: 4,
|
|
__dummy__: 0
|
|
}
|
|
|
|
|
|
Module['Runtime'] = Runtime;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//========================================
|
|
// Runtime essentials
|
|
//========================================
|
|
|
|
var __THREW__ = 0; // Used in checking for thrown exceptions.
|
|
|
|
var ABORT = false; // whether we are quitting the application. no code should run after this. set in exit() and abort()
|
|
var EXITSTATUS = 0;
|
|
|
|
var undef = 0;
|
|
// tempInt is used for 32-bit signed values or smaller. tempBigInt is used
|
|
// for 32-bit unsigned values or more than 32 bits. TODO: audit all uses of tempInt
|
|
var tempValue, tempInt, tempBigInt, tempInt2, tempBigInt2, tempPair, tempBigIntI, tempBigIntR, tempBigIntS, tempBigIntP, tempBigIntD, tempDouble, tempFloat;
|
|
var tempI64, tempI64b;
|
|
var tempRet0, tempRet1, tempRet2, tempRet3, tempRet4, tempRet5, tempRet6, tempRet7, tempRet8, tempRet9;
|
|
|
|
function assert(condition, text) {
|
|
if (!condition) {
|
|
abort('Assertion failed: ' + text);
|
|
}
|
|
}
|
|
|
|
var globalScope = this;
|
|
|
|
// C calling interface. A convenient way to call C functions (in C files, or
|
|
// defined with extern "C").
|
|
//
|
|
// Note: LLVM optimizations can inline and remove functions, after which you will not be
|
|
// able to call them. Closure can also do so. To avoid that, add your function to
|
|
// the exports using something like
|
|
//
|
|
// -s EXPORTED_FUNCTIONS='["_main", "_myfunc"]'
|
|
//
|
|
// @param ident The name of the C function (note that C++ functions will be name-mangled - use extern "C")
|
|
// @param returnType The return type of the function, one of the JS types 'number', 'string' or 'array' (use 'number' for any C pointer, and
|
|
// 'array' for JavaScript arrays and typed arrays; note that arrays are 8-bit).
|
|
// @param argTypes An array of the types of arguments for the function (if there are no arguments, this can be ommitted). Types are as in returnType,
|
|
// except that 'array' is not possible (there is no way for us to know the length of the array)
|
|
// @param args An array of the arguments to the function, as native JS values (as in returnType)
|
|
// Note that string arguments will be stored on the stack (the JS string will become a C string on the stack).
|
|
// @return The return value, as a native JS value (as in returnType)
|
|
function ccall(ident, returnType, argTypes, args) {
|
|
return ccallFunc(getCFunc(ident), returnType, argTypes, args);
|
|
}
|
|
Module["ccall"] = ccall;
|
|
|
|
// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
|
|
function getCFunc(ident) {
|
|
try {
|
|
var func = Module['_' + ident]; // closure exported function
|
|
if (!func) func = eval('_' + ident); // explicit lookup
|
|
} catch(e) {
|
|
}
|
|
assert(func, 'Cannot call unknown function ' + ident + ' (perhaps LLVM optimizations or closure removed it?)');
|
|
return func;
|
|
}
|
|
|
|
// Internal function that does a C call using a function, not an identifier
|
|
function ccallFunc(func, returnType, argTypes, args) {
|
|
var stack = 0;
|
|
function toC(value, type) {
|
|
if (type == 'string') {
|
|
if (value === null || value === undefined || value === 0) return 0; // null string
|
|
value = intArrayFromString(value);
|
|
type = 'array';
|
|
}
|
|
if (type == 'array') {
|
|
if (!stack) stack = Runtime.stackSave();
|
|
var ret = Runtime.stackAlloc(value.length);
|
|
writeArrayToMemory(value, ret);
|
|
return ret;
|
|
}
|
|
return value;
|
|
}
|
|
function fromC(value, type) {
|
|
if (type == 'string') {
|
|
return Pointer_stringify(value);
|
|
}
|
|
assert(type != 'array');
|
|
return value;
|
|
}
|
|
var i = 0;
|
|
var cArgs = args ? args.map(function(arg) {
|
|
return toC(arg, argTypes[i++]);
|
|
}) : [];
|
|
var ret = fromC(func.apply(null, cArgs), returnType);
|
|
if (stack) Runtime.stackRestore(stack);
|
|
return ret;
|
|
}
|
|
|
|
// Returns a native JS wrapper for a C function. This is similar to ccall, but
|
|
// returns a function you can call repeatedly in a normal way. For example:
|
|
//
|
|
// var my_function = cwrap('my_c_function', 'number', ['number', 'number']);
|
|
// alert(my_function(5, 22));
|
|
// alert(my_function(99, 12));
|
|
//
|
|
function cwrap(ident, returnType, argTypes) {
|
|
var func = getCFunc(ident);
|
|
return function() {
|
|
return ccallFunc(func, returnType, argTypes, Array.prototype.slice.call(arguments));
|
|
}
|
|
}
|
|
Module["cwrap"] = cwrap;
|
|
|
|
// Sets a value in memory in a dynamic way at run-time. Uses the
|
|
// type data. This is the same as makeSetValue, except that
|
|
// makeSetValue is done at compile-time and generates the needed
|
|
// code then, whereas this function picks the right code at
|
|
// run-time.
|
|
// Note that setValue and getValue only do *aligned* writes and reads!
|
|
// Note that ccall uses JS types as for defining types, while setValue and
|
|
// getValue need LLVM types ('i8', 'i32') - this is a lower-level operation
|
|
function setValue(ptr, value, type, noSafe) {
|
|
type = type || 'i8';
|
|
if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
|
|
switch(type) {
|
|
case 'i1': HEAP8[(ptr)]=value; break;
|
|
case 'i8': HEAP8[(ptr)]=value; break;
|
|
case 'i16': HEAP16[((ptr)>>1)]=value; break;
|
|
case 'i32': HEAP32[((ptr)>>2)]=value; break;
|
|
case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math_abs(tempDouble))) >= (+1) ? (tempDouble > (+0) ? ((Math_min((+(Math_floor((tempDouble)/(+4294967296)))), (+4294967295)))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/(+4294967296))))))>>>0) : 0)],HEAP32[((ptr)>>2)]=tempI64[0],HEAP32[(((ptr)+(4))>>2)]=tempI64[1]); break;
|
|
case 'float': HEAPF32[((ptr)>>2)]=value; break;
|
|
case 'double': HEAPF64[((ptr)>>3)]=value; break;
|
|
default: abort('invalid type for setValue: ' + type);
|
|
}
|
|
}
|
|
Module['setValue'] = setValue;
|
|
|
|
// Parallel to setValue.
|
|
function getValue(ptr, type, noSafe) {
|
|
type = type || 'i8';
|
|
if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
|
|
switch(type) {
|
|
case 'i1': return HEAP8[(ptr)];
|
|
case 'i8': return HEAP8[(ptr)];
|
|
case 'i16': return HEAP16[((ptr)>>1)];
|
|
case 'i32': return HEAP32[((ptr)>>2)];
|
|
case 'i64': return HEAP32[((ptr)>>2)];
|
|
case 'float': return HEAPF32[((ptr)>>2)];
|
|
case 'double': return HEAPF64[((ptr)>>3)];
|
|
default: abort('invalid type for setValue: ' + type);
|
|
}
|
|
return null;
|
|
}
|
|
Module['getValue'] = getValue;
|
|
|
|
var ALLOC_NORMAL = 0; // Tries to use _malloc()
|
|
var ALLOC_STACK = 1; // Lives for the duration of the current function call
|
|
var ALLOC_STATIC = 2; // Cannot be freed
|
|
var ALLOC_DYNAMIC = 3; // Cannot be freed except through sbrk
|
|
var ALLOC_NONE = 4; // Do not allocate
|
|
Module['ALLOC_NORMAL'] = ALLOC_NORMAL;
|
|
Module['ALLOC_STACK'] = ALLOC_STACK;
|
|
Module['ALLOC_STATIC'] = ALLOC_STATIC;
|
|
Module['ALLOC_DYNAMIC'] = ALLOC_DYNAMIC;
|
|
Module['ALLOC_NONE'] = ALLOC_NONE;
|
|
|
|
// allocate(): This is for internal use. You can use it yourself as well, but the interface
|
|
// is a little tricky (see docs right below). The reason is that it is optimized
|
|
// for multiple syntaxes to save space in generated code. So you should
|
|
// normally not use allocate(), and instead allocate memory using _malloc(),
|
|
// initialize it with setValue(), and so forth.
|
|
// @slab: An array of data, or a number. If a number, then the size of the block to allocate,
|
|
// in *bytes* (note that this is sometimes confusing: the next parameter does not
|
|
// affect this!)
|
|
// @types: Either an array of types, one for each byte (or 0 if no type at that position),
|
|
// or a single type which is used for the entire block. This only matters if there
|
|
// is initial data - if @slab is a number, then this does not matter at all and is
|
|
// ignored.
|
|
// @allocator: How to allocate memory, see ALLOC_*
|
|
function allocate(slab, types, allocator, ptr) {
|
|
var zeroinit, size;
|
|
if (typeof slab === 'number') {
|
|
zeroinit = true;
|
|
size = slab;
|
|
} else {
|
|
zeroinit = false;
|
|
size = slab.length;
|
|
}
|
|
|
|
var singleType = typeof types === 'string' ? types : null;
|
|
|
|
var ret;
|
|
if (allocator == ALLOC_NONE) {
|
|
ret = ptr;
|
|
} else {
|
|
ret = [_malloc, Runtime.stackAlloc, Runtime.staticAlloc, Runtime.dynamicAlloc][allocator === undefined ? ALLOC_STATIC : allocator](Math.max(size, singleType ? 1 : types.length));
|
|
}
|
|
|
|
if (zeroinit) {
|
|
var ptr = ret, stop;
|
|
assert((ret & 3) == 0);
|
|
stop = ret + (size & ~3);
|
|
for (; ptr < stop; ptr += 4) {
|
|
HEAP32[((ptr)>>2)]=0;
|
|
}
|
|
stop = ret + size;
|
|
while (ptr < stop) {
|
|
HEAP8[((ptr++)|0)]=0;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
if (singleType === 'i8') {
|
|
if (slab.subarray || slab.slice) {
|
|
HEAPU8.set(slab, ret);
|
|
} else {
|
|
HEAPU8.set(new Uint8Array(slab), ret);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
var i = 0, type, typeSize, previousType;
|
|
while (i < size) {
|
|
var curr = slab[i];
|
|
|
|
if (typeof curr === 'function') {
|
|
curr = Runtime.getFunctionIndex(curr);
|
|
}
|
|
|
|
type = singleType || types[i];
|
|
if (type === 0) {
|
|
i++;
|
|
continue;
|
|
}
|
|
|
|
if (type == 'i64') type = 'i32'; // special case: we have one i32 here, and one i32 later
|
|
|
|
setValue(ret+i, curr, type);
|
|
|
|
// no need to look up size unless type changes, so cache it
|
|
if (previousType !== type) {
|
|
typeSize = Runtime.getNativeTypeSize(type);
|
|
previousType = type;
|
|
}
|
|
i += typeSize;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
Module['allocate'] = allocate;
|
|
|
|
function Pointer_stringify(ptr, /* optional */ length) {
|
|
// TODO: use TextDecoder
|
|
// Find the length, and check for UTF while doing so
|
|
var hasUtf = false;
|
|
var t;
|
|
var i = 0;
|
|
while (1) {
|
|
t = HEAPU8[(((ptr)+(i))|0)];
|
|
if (t >= 128) hasUtf = true;
|
|
else if (t == 0 && !length) break;
|
|
i++;
|
|
if (length && i == length) break;
|
|
}
|
|
if (!length) length = i;
|
|
|
|
var ret = '';
|
|
|
|
if (!hasUtf) {
|
|
var MAX_CHUNK = 1024; // split up into chunks, because .apply on a huge string can overflow the stack
|
|
var curr;
|
|
while (length > 0) {
|
|
curr = String.fromCharCode.apply(String, HEAPU8.subarray(ptr, ptr + Math.min(length, MAX_CHUNK)));
|
|
ret = ret ? ret + curr : curr;
|
|
ptr += MAX_CHUNK;
|
|
length -= MAX_CHUNK;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
var utf8 = new Runtime.UTF8Processor();
|
|
for (i = 0; i < length; i++) {
|
|
t = HEAPU8[(((ptr)+(i))|0)];
|
|
ret += utf8.processCChar(t);
|
|
}
|
|
return ret;
|
|
}
|
|
Module['Pointer_stringify'] = Pointer_stringify;
|
|
|
|
// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns
|
|
// a copy of that string as a Javascript String object.
|
|
function UTF16ToString(ptr) {
|
|
var i = 0;
|
|
|
|
var str = '';
|
|
while (1) {
|
|
var codeUnit = HEAP16[(((ptr)+(i*2))>>1)];
|
|
if (codeUnit == 0)
|
|
return str;
|
|
++i;
|
|
// fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through.
|
|
str += String.fromCharCode(codeUnit);
|
|
}
|
|
}
|
|
Module['UTF16ToString'] = UTF16ToString;
|
|
|
|
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
|
|
// null-terminated and encoded in UTF16LE form. The copy will require at most (str.length*2+1)*2 bytes of space in the HEAP.
|
|
function stringToUTF16(str, outPtr) {
|
|
for(var i = 0; i < str.length; ++i) {
|
|
// charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
|
|
var codeUnit = str.charCodeAt(i); // possibly a lead surrogate
|
|
HEAP16[(((outPtr)+(i*2))>>1)]=codeUnit;
|
|
}
|
|
// Null-terminate the pointer to the HEAP.
|
|
HEAP16[(((outPtr)+(str.length*2))>>1)]=0;
|
|
}
|
|
Module['stringToUTF16'] = stringToUTF16;
|
|
|
|
// Given a pointer 'ptr' to a null-terminated UTF32LE-encoded string in the emscripten HEAP, returns
|
|
// a copy of that string as a Javascript String object.
|
|
function UTF32ToString(ptr) {
|
|
var i = 0;
|
|
|
|
var str = '';
|
|
while (1) {
|
|
var utf32 = HEAP32[(((ptr)+(i*4))>>2)];
|
|
if (utf32 == 0)
|
|
return str;
|
|
++i;
|
|
// Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
|
|
if (utf32 >= 0x10000) {
|
|
var ch = utf32 - 0x10000;
|
|
str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
|
|
} else {
|
|
str += String.fromCharCode(utf32);
|
|
}
|
|
}
|
|
}
|
|
Module['UTF32ToString'] = UTF32ToString;
|
|
|
|
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
|
|
// null-terminated and encoded in UTF32LE form. The copy will require at most (str.length+1)*4 bytes of space in the HEAP,
|
|
// but can use less, since str.length does not return the number of characters in the string, but the number of UTF-16 code units in the string.
|
|
function stringToUTF32(str, outPtr) {
|
|
var iChar = 0;
|
|
for(var iCodeUnit = 0; iCodeUnit < str.length; ++iCodeUnit) {
|
|
// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
|
|
var codeUnit = str.charCodeAt(iCodeUnit); // possibly a lead surrogate
|
|
if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {
|
|
var trailSurrogate = str.charCodeAt(++iCodeUnit);
|
|
codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
|
|
}
|
|
HEAP32[(((outPtr)+(iChar*4))>>2)]=codeUnit;
|
|
++iChar;
|
|
}
|
|
// Null-terminate the pointer to the HEAP.
|
|
HEAP32[(((outPtr)+(iChar*4))>>2)]=0;
|
|
}
|
|
Module['stringToUTF32'] = stringToUTF32;
|
|
|
|
function demangle(func) {
|
|
var i = 3;
|
|
// params, etc.
|
|
var basicTypes = {
|
|
'v': 'void',
|
|
'b': 'bool',
|
|
'c': 'char',
|
|
's': 'short',
|
|
'i': 'int',
|
|
'l': 'long',
|
|
'f': 'float',
|
|
'd': 'double',
|
|
'w': 'wchar_t',
|
|
'a': 'signed char',
|
|
'h': 'unsigned char',
|
|
't': 'unsigned short',
|
|
'j': 'unsigned int',
|
|
'm': 'unsigned long',
|
|
'x': 'long long',
|
|
'y': 'unsigned long long',
|
|
'z': '...'
|
|
};
|
|
var subs = [];
|
|
var first = true;
|
|
function dump(x) {
|
|
//return;
|
|
if (x) Module.print(x);
|
|
Module.print(func);
|
|
var pre = '';
|
|
for (var a = 0; a < i; a++) pre += ' ';
|
|
Module.print (pre + '^');
|
|
}
|
|
function parseNested() {
|
|
i++;
|
|
if (func[i] === 'K') i++; // ignore const
|
|
var parts = [];
|
|
while (func[i] !== 'E') {
|
|
if (func[i] === 'S') { // substitution
|
|
i++;
|
|
var next = func.indexOf('_', i);
|
|
var num = func.substring(i, next) || 0;
|
|
parts.push(subs[num] || '?');
|
|
i = next+1;
|
|
continue;
|
|
}
|
|
if (func[i] === 'C') { // constructor
|
|
parts.push(parts[parts.length-1]);
|
|
i += 2;
|
|
continue;
|
|
}
|
|
var size = parseInt(func.substr(i));
|
|
var pre = size.toString().length;
|
|
if (!size || !pre) { i--; break; } // counter i++ below us
|
|
var curr = func.substr(i + pre, size);
|
|
parts.push(curr);
|
|
subs.push(curr);
|
|
i += pre + size;
|
|
}
|
|
i++; // skip E
|
|
return parts;
|
|
}
|
|
function parse(rawList, limit, allowVoid) { // main parser
|
|
limit = limit || Infinity;
|
|
var ret = '', list = [];
|
|
function flushList() {
|
|
return '(' + list.join(', ') + ')';
|
|
}
|
|
var name;
|
|
if (func[i] === 'N') {
|
|
// namespaced N-E
|
|
name = parseNested().join('::');
|
|
limit--;
|
|
if (limit === 0) return rawList ? [name] : name;
|
|
} else {
|
|
// not namespaced
|
|
if (func[i] === 'K' || (first && func[i] === 'L')) i++; // ignore const and first 'L'
|
|
var size = parseInt(func.substr(i));
|
|
if (size) {
|
|
var pre = size.toString().length;
|
|
name = func.substr(i + pre, size);
|
|
i += pre + size;
|
|
}
|
|
}
|
|
first = false;
|
|
if (func[i] === 'I') {
|
|
i++;
|
|
var iList = parse(true);
|
|
var iRet = parse(true, 1, true);
|
|
ret += iRet[0] + ' ' + name + '<' + iList.join(', ') + '>';
|
|
} else {
|
|
ret = name;
|
|
}
|
|
paramLoop: while (i < func.length && limit-- > 0) {
|
|
//dump('paramLoop');
|
|
var c = func[i++];
|
|
if (c in basicTypes) {
|
|
list.push(basicTypes[c]);
|
|
} else {
|
|
switch (c) {
|
|
case 'P': list.push(parse(true, 1, true)[0] + '*'); break; // pointer
|
|
case 'R': list.push(parse(true, 1, true)[0] + '&'); break; // reference
|
|
case 'L': { // literal
|
|
i++; // skip basic type
|
|
var end = func.indexOf('E', i);
|
|
var size = end - i;
|
|
list.push(func.substr(i, size));
|
|
i += size + 2; // size + 'EE'
|
|
break;
|
|
}
|
|
case 'A': { // array
|
|
var size = parseInt(func.substr(i));
|
|
i += size.toString().length;
|
|
if (func[i] !== '_') throw '?';
|
|
i++; // skip _
|
|
list.push(parse(true, 1, true)[0] + ' [' + size + ']');
|
|
break;
|
|
}
|
|
case 'E': break paramLoop;
|
|
default: ret += '?' + c; break paramLoop;
|
|
}
|
|
}
|
|
}
|
|
if (!allowVoid && list.length === 1 && list[0] === 'void') list = []; // avoid (void)
|
|
if (rawList) {
|
|
if (ret) {
|
|
list.push(ret + '?');
|
|
}
|
|
return list;
|
|
} else {
|
|
return ret + flushList();
|
|
}
|
|
}
|
|
try {
|
|
// Special-case the entry point, since its name differs from other name mangling.
|
|
if (func == 'Object._main' || func == '_main') {
|
|
return 'main()';
|
|
}
|
|
if (typeof func === 'number') func = Pointer_stringify(func);
|
|
if (func[0] !== '_') return func;
|
|
if (func[1] !== '_') return func; // C function
|
|
if (func[2] !== 'Z') return func;
|
|
switch (func[3]) {
|
|
case 'n': return 'operator new()';
|
|
case 'd': return 'operator delete()';
|
|
}
|
|
return parse();
|
|
} catch(e) {
|
|
return func;
|
|
}
|
|
}
|
|
|
|
function demangleAll(text) {
|
|
return text.replace(/__Z[\w\d_]+/g, function(x) { var y = demangle(x); return x === y ? x : (x + ' [' + y + ']') });
|
|
}
|
|
|
|
function stackTrace() {
|
|
var stack = new Error().stack;
|
|
return stack ? demangleAll(stack) : '(no stack trace available)'; // Stack trace is not available at least on IE10 and Safari 6.
|
|
}
|
|
|
|
// Memory management
|
|
|
|
var PAGE_SIZE = 4096;
|
|
function alignMemoryPage(x) {
|
|
return (x+4095)&-4096;
|
|
}
|
|
|
|
var HEAP;
|
|
var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
|
|
|
|
var STATIC_BASE = 0, STATICTOP = 0, staticSealed = false; // static area
|
|
var STACK_BASE = 0, STACKTOP = 0, STACK_MAX = 0; // stack area
|
|
var DYNAMIC_BASE = 0, DYNAMICTOP = 0; // dynamic area handled by sbrk
|
|
|
|
function enlargeMemory() {
|
|
abort('Cannot enlarge memory arrays. Either (1) compile with -s TOTAL_MEMORY=X with X higher than the current value ' + TOTAL_MEMORY + ', (2) compile with ALLOW_MEMORY_GROWTH which adjusts the size at runtime but prevents some optimizations, or (3) set Module.TOTAL_MEMORY before the program runs.');
|
|
}
|
|
|
|
var TOTAL_STACK = Module['TOTAL_STACK'] || 5242880;
|
|
var TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 134217728;
|
|
var FAST_MEMORY = Module['FAST_MEMORY'] || 2097152;
|
|
|
|
var totalMemory = 4096;
|
|
while (totalMemory < TOTAL_MEMORY || totalMemory < 2*TOTAL_STACK) {
|
|
if (totalMemory < 16*1024*1024) {
|
|
totalMemory *= 2;
|
|
} else {
|
|
totalMemory += 16*1024*1024
|
|
}
|
|
}
|
|
if (totalMemory !== TOTAL_MEMORY) {
|
|
Module.printErr('increasing TOTAL_MEMORY to ' + totalMemory + ' to be more reasonable');
|
|
TOTAL_MEMORY = totalMemory;
|
|
}
|
|
|
|
// Initialize the runtime's memory
|
|
// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
|
|
assert(typeof Int32Array !== 'undefined' && typeof Float64Array !== 'undefined' && !!(new Int32Array(1)['subarray']) && !!(new Int32Array(1)['set']),
|
|
'JS engine does not provide full typed array support');
|
|
|
|
var buffer = new ArrayBuffer(TOTAL_MEMORY);
|
|
HEAP8 = new Int8Array(buffer);
|
|
HEAP16 = new Int16Array(buffer);
|
|
HEAP32 = new Int32Array(buffer);
|
|
HEAPU8 = new Uint8Array(buffer);
|
|
HEAPU16 = new Uint16Array(buffer);
|
|
HEAPU32 = new Uint32Array(buffer);
|
|
HEAPF32 = new Float32Array(buffer);
|
|
HEAPF64 = new Float64Array(buffer);
|
|
|
|
// Endianness check (note: assumes compiler arch was little-endian)
|
|
HEAP32[0] = 255;
|
|
assert(HEAPU8[0] === 255 && HEAPU8[3] === 0, 'Typed arrays 2 must be run on a little-endian system');
|
|
|
|
Module['HEAP'] = HEAP;
|
|
Module['HEAP8'] = HEAP8;
|
|
Module['HEAP16'] = HEAP16;
|
|
Module['HEAP32'] = HEAP32;
|
|
Module['HEAPU8'] = HEAPU8;
|
|
Module['HEAPU16'] = HEAPU16;
|
|
Module['HEAPU32'] = HEAPU32;
|
|
Module['HEAPF32'] = HEAPF32;
|
|
Module['HEAPF64'] = HEAPF64;
|
|
|
|
function callRuntimeCallbacks(callbacks) {
|
|
while(callbacks.length > 0) {
|
|
var callback = callbacks.shift();
|
|
if (typeof callback == 'function') {
|
|
callback();
|
|
continue;
|
|
}
|
|
var func = callback.func;
|
|
if (typeof func === 'number') {
|
|
if (callback.arg === undefined) {
|
|
Runtime.dynCall('v', func);
|
|
} else {
|
|
Runtime.dynCall('vi', func, [callback.arg]);
|
|
}
|
|
} else {
|
|
func(callback.arg === undefined ? null : callback.arg);
|
|
}
|
|
}
|
|
}
|
|
|
|
var __ATPRERUN__ = []; // functions called before the runtime is initialized
|
|
var __ATINIT__ = []; // functions called during startup
|
|
var __ATMAIN__ = []; // functions called when main() is to be run
|
|
var __ATEXIT__ = []; // functions called during shutdown
|
|
var __ATPOSTRUN__ = []; // functions called after the runtime has exited
|
|
|
|
var runtimeInitialized = false;
|
|
|
|
function preRun() {
|
|
// compatibility - merge in anything from Module['preRun'] at this time
|
|
if (Module['preRun']) {
|
|
if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
|
|
while (Module['preRun'].length) {
|
|
addOnPreRun(Module['preRun'].shift());
|
|
}
|
|
}
|
|
callRuntimeCallbacks(__ATPRERUN__);
|
|
}
|
|
|
|
function ensureInitRuntime() {
|
|
if (runtimeInitialized) return;
|
|
runtimeInitialized = true;
|
|
callRuntimeCallbacks(__ATINIT__);
|
|
}
|
|
|
|
function preMain() {
|
|
callRuntimeCallbacks(__ATMAIN__);
|
|
}
|
|
|
|
function exitRuntime() {
|
|
callRuntimeCallbacks(__ATEXIT__);
|
|
}
|
|
|
|
function postRun() {
|
|
// compatibility - merge in anything from Module['postRun'] at this time
|
|
if (Module['postRun']) {
|
|
if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];
|
|
while (Module['postRun'].length) {
|
|
addOnPostRun(Module['postRun'].shift());
|
|
}
|
|
}
|
|
callRuntimeCallbacks(__ATPOSTRUN__);
|
|
}
|
|
|
|
function addOnPreRun(cb) {
|
|
__ATPRERUN__.unshift(cb);
|
|
}
|
|
Module['addOnPreRun'] = Module.addOnPreRun = addOnPreRun;
|
|
|
|
function addOnInit(cb) {
|
|
__ATINIT__.unshift(cb);
|
|
}
|
|
Module['addOnInit'] = Module.addOnInit = addOnInit;
|
|
|
|
function addOnPreMain(cb) {
|
|
__ATMAIN__.unshift(cb);
|
|
}
|
|
Module['addOnPreMain'] = Module.addOnPreMain = addOnPreMain;
|
|
|
|
function addOnExit(cb) {
|
|
__ATEXIT__.unshift(cb);
|
|
}
|
|
Module['addOnExit'] = Module.addOnExit = addOnExit;
|
|
|
|
function addOnPostRun(cb) {
|
|
__ATPOSTRUN__.unshift(cb);
|
|
}
|
|
Module['addOnPostRun'] = Module.addOnPostRun = addOnPostRun;
|
|
|
|
// Tools
|
|
|
|
// This processes a JS string into a C-line array of numbers, 0-terminated.
|
|
// For LLVM-originating strings, see parser.js:parseLLVMString function
|
|
function intArrayFromString(stringy, dontAddNull, length /* optional */) {
|
|
var ret = (new Runtime.UTF8Processor()).processJSString(stringy);
|
|
if (length) {
|
|
ret.length = length;
|
|
}
|
|
if (!dontAddNull) {
|
|
ret.push(0);
|
|
}
|
|
return ret;
|
|
}
|
|
Module['intArrayFromString'] = intArrayFromString;
|
|
|
|
function intArrayToString(array) {
|
|
var ret = [];
|
|
for (var i = 0; i < array.length; i++) {
|
|
var chr = array[i];
|
|
if (chr > 0xFF) {
|
|
chr &= 0xFF;
|
|
}
|
|
ret.push(String.fromCharCode(chr));
|
|
}
|
|
return ret.join('');
|
|
}
|
|
Module['intArrayToString'] = intArrayToString;
|
|
|
|
// Write a Javascript array to somewhere in the heap
|
|
function writeStringToMemory(string, buffer, dontAddNull) {
|
|
var array = intArrayFromString(string, dontAddNull);
|
|
var i = 0;
|
|
while (i < array.length) {
|
|
var chr = array[i];
|
|
HEAP8[(((buffer)+(i))|0)]=chr;
|
|
i = i + 1;
|
|
}
|
|
}
|
|
Module['writeStringToMemory'] = writeStringToMemory;
|
|
|
|
function writeArrayToMemory(array, buffer) {
|
|
for (var i = 0; i < array.length; i++) {
|
|
HEAP8[(((buffer)+(i))|0)]=array[i];
|
|
}
|
|
}
|
|
Module['writeArrayToMemory'] = writeArrayToMemory;
|
|
|
|
function writeAsciiToMemory(str, buffer, dontAddNull) {
|
|
for (var i = 0; i < str.length; i++) {
|
|
HEAP8[(((buffer)+(i))|0)]=str.charCodeAt(i);
|
|
}
|
|
if (!dontAddNull) HEAP8[(((buffer)+(str.length))|0)]=0;
|
|
}
|
|
Module['writeAsciiToMemory'] = writeAsciiToMemory;
|
|
|
|
function unSign(value, bits, ignore) {
|
|
if (value >= 0) {
|
|
return value;
|
|
}
|
|
return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value // Need some trickery, since if bits == 32, we are right at the limit of the bits JS uses in bitshifts
|
|
: Math.pow(2, bits) + value;
|
|
}
|
|
function reSign(value, bits, ignore) {
|
|
if (value <= 0) {
|
|
return value;
|
|
}
|
|
var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32
|
|
: Math.pow(2, bits-1);
|
|
if (value >= half && (bits <= 32 || value > half)) { // for huge values, we can hit the precision limit and always get true here. so don't do that
|
|
// but, in general there is no perfect solution here. With 64-bit ints, we get rounding and errors
|
|
// TODO: In i64 mode 1, resign the two parts separately and safely
|
|
value = -2*half + value; // Cannot bitshift half, as it may be at the limit of the bits JS uses in bitshifts
|
|
}
|
|
return value;
|
|
}
|
|
|
|
// check for imul support, and also for correctness ( https://bugs.webkit.org/show_bug.cgi?id=126345 )
|
|
if (!Math['imul'] || Math['imul'](0xffffffff, 5) !== -5) Math['imul'] = function imul(a, b) {
|
|
var ah = a >>> 16;
|
|
var al = a & 0xffff;
|
|
var bh = b >>> 16;
|
|
var bl = b & 0xffff;
|
|
return (al*bl + ((ah*bl + al*bh) << 16))|0;
|
|
};
|
|
Math.imul = Math['imul'];
|
|
|
|
|
|
var Math_abs = Math.abs;
|
|
var Math_cos = Math.cos;
|
|
var Math_sin = Math.sin;
|
|
var Math_tan = Math.tan;
|
|
var Math_acos = Math.acos;
|
|
var Math_asin = Math.asin;
|
|
var Math_atan = Math.atan;
|
|
var Math_atan2 = Math.atan2;
|
|
var Math_exp = Math.exp;
|
|
var Math_log = Math.log;
|
|
var Math_sqrt = Math.sqrt;
|
|
var Math_ceil = Math.ceil;
|
|
var Math_floor = Math.floor;
|
|
var Math_pow = Math.pow;
|
|
var Math_imul = Math.imul;
|
|
var Math_fround = Math.fround;
|
|
var Math_min = Math.min;
|
|
|
|
// A counter of dependencies for calling run(). If we need to
|
|
// do asynchronous work before running, increment this and
|
|
// decrement it. Incrementing must happen in a place like
|
|
// PRE_RUN_ADDITIONS (used by emcc to add file preloading).
|
|
// Note that you can add dependencies in preRun, even though
|
|
// it happens right before run - run will be postponed until
|
|
// the dependencies are met.
|
|
var runDependencies = 0;
|
|
var runDependencyWatcher = null;
|
|
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
|
|
|
|
function addRunDependency(id) {
|
|
runDependencies++;
|
|
if (Module['monitorRunDependencies']) {
|
|
Module['monitorRunDependencies'](runDependencies);
|
|
}
|
|
}
|
|
Module['addRunDependency'] = addRunDependency;
|
|
function removeRunDependency(id) {
|
|
runDependencies--;
|
|
if (Module['monitorRunDependencies']) {
|
|
Module['monitorRunDependencies'](runDependencies);
|
|
}
|
|
if (runDependencies == 0) {
|
|
if (runDependencyWatcher !== null) {
|
|
clearInterval(runDependencyWatcher);
|
|
runDependencyWatcher = null;
|
|
}
|
|
if (dependenciesFulfilled) {
|
|
var callback = dependenciesFulfilled;
|
|
dependenciesFulfilled = null;
|
|
callback(); // can add another dependenciesFulfilled
|
|
}
|
|
}
|
|
}
|
|
Module['removeRunDependency'] = removeRunDependency;
|
|
|
|
Module["preloadedImages"] = {}; // maps url to image data
|
|
Module["preloadedAudios"] = {}; // maps url to audio data
|
|
|
|
|
|
var memoryInitializer = null;
|
|
|
|
// === Body ===
|
|
|
|
|
|
|
|
|
|
|
|
STATIC_BASE = 8;
|
|
|
|
STATICTOP = STATIC_BASE + Runtime.alignMemory(27);
|
|
/* global initializers */ __ATINIT__.push();
|
|
|
|
|
|
/* memory initializer */ allocate([101,114,114,111,114,58,32,37,100,92,110,0,0,0,0,0,115,117,109,58,37,100,10,0], "i8", ALLOC_NONE, Runtime.GLOBAL_BASE);
|
|
|
|
|
|
|
|
|
|
var tempDoublePtr = Runtime.alignMemory(allocate(12, "i8", ALLOC_STATIC), 8);
|
|
|
|
assert(tempDoublePtr % 8 == 0);
|
|
|
|
function copyTempFloat(ptr) { // functions, because inlining this code increases code size too much
|
|
|
|
HEAP8[tempDoublePtr] = HEAP8[ptr];
|
|
|
|
HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];
|
|
|
|
HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];
|
|
|
|
HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];
|
|
|
|
}
|
|
|
|
function copyTempDouble(ptr) {
|
|
|
|
HEAP8[tempDoublePtr] = HEAP8[ptr];
|
|
|
|
HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];
|
|
|
|
HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];
|
|
|
|
HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];
|
|
|
|
HEAP8[tempDoublePtr+4] = HEAP8[ptr+4];
|
|
|
|
HEAP8[tempDoublePtr+5] = HEAP8[ptr+5];
|
|
|
|
HEAP8[tempDoublePtr+6] = HEAP8[ptr+6];
|
|
|
|
HEAP8[tempDoublePtr+7] = HEAP8[ptr+7];
|
|
|
|
}
|
|
|
|
|
|
function _malloc(bytes) {
|
|
/* Over-allocate to make sure it is byte-aligned by 8.
|
|
* This will leak memory, but this is only the dummy
|
|
* implementation (replaced by dlmalloc normally) so
|
|
* not an issue.
|
|
*/
|
|
var ptr = Runtime.dynamicAlloc(bytes + 8);
|
|
return (ptr+8) & 0xFFFFFFF8;
|
|
}
|
|
Module["_malloc"] = _malloc;
|
|
|
|
|
|
|
|
|
|
var ERRNO_CODES={EPERM:1,ENOENT:2,ESRCH:3,EINTR:4,EIO:5,ENXIO:6,E2BIG:7,ENOEXEC:8,EBADF:9,ECHILD:10,EAGAIN:11,EWOULDBLOCK:11,ENOMEM:12,EACCES:13,EFAULT:14,ENOTBLK:15,EBUSY:16,EEXIST:17,EXDEV:18,ENODEV:19,ENOTDIR:20,EISDIR:21,EINVAL:22,ENFILE:23,EMFILE:24,ENOTTY:25,ETXTBSY:26,EFBIG:27,ENOSPC:28,ESPIPE:29,EROFS:30,EMLINK:31,EPIPE:32,EDOM:33,ERANGE:34,ENOMSG:42,EIDRM:43,ECHRNG:44,EL2NSYNC:45,EL3HLT:46,EL3RST:47,ELNRNG:48,EUNATCH:49,ENOCSI:50,EL2HLT:51,EDEADLK:35,ENOLCK:37,EBADE:52,EBADR:53,EXFULL:54,ENOANO:55,EBADRQC:56,EBADSLT:57,EDEADLOCK:35,EBFONT:59,ENOSTR:60,ENODATA:61,ETIME:62,ENOSR:63,ENONET:64,ENOPKG:65,EREMOTE:66,ENOLINK:67,EADV:68,ESRMNT:69,ECOMM:70,EPROTO:71,EMULTIHOP:72,EDOTDOT:73,EBADMSG:74,ENOTUNIQ:76,EBADFD:77,EREMCHG:78,ELIBACC:79,ELIBBAD:80,ELIBSCN:81,ELIBMAX:82,ELIBEXEC:83,ENOSYS:38,ENOTEMPTY:39,ENAMETOOLONG:36,ELOOP:40,EOPNOTSUPP:95,EPFNOSUPPORT:96,ECONNRESET:104,ENOBUFS:105,EAFNOSUPPORT:97,EPROTOTYPE:91,ENOTSOCK:88,ENOPROTOOPT:92,ESHUTDOWN:108,ECONNREFUSED:111,EADDRINUSE:98,ECONNABORTED:103,ENETUNREACH:101,ENETDOWN:100,ETIMEDOUT:110,EHOSTDOWN:112,EHOSTUNREACH:113,EINPROGRESS:115,EALREADY:114,EDESTADDRREQ:89,EMSGSIZE:90,EPROTONOSUPPORT:93,ESOCKTNOSUPPORT:94,EADDRNOTAVAIL:99,ENETRESET:102,EISCONN:106,ENOTCONN:107,ETOOMANYREFS:109,EUSERS:87,EDQUOT:122,ESTALE:116,ENOTSUP:95,ENOMEDIUM:123,EILSEQ:84,EOVERFLOW:75,ECANCELED:125,ENOTRECOVERABLE:131,EOWNERDEAD:130,ESTRPIPE:86};
|
|
|
|
var ERRNO_MESSAGES={0:"Success",1:"Not super-user",2:"No such file or directory",3:"No such process",4:"Interrupted system call",5:"I/O error",6:"No such device or address",7:"Arg list too long",8:"Exec format error",9:"Bad file number",10:"No children",11:"No more processes",12:"Not enough core",13:"Permission denied",14:"Bad address",15:"Block device required",16:"Mount device busy",17:"File exists",18:"Cross-device link",19:"No such device",20:"Not a directory",21:"Is a directory",22:"Invalid argument",23:"Too many open files in system",24:"Too many open files",25:"Not a typewriter",26:"Text file busy",27:"File too large",28:"No space left on device",29:"Illegal seek",30:"Read only file system",31:"Too many links",32:"Broken pipe",33:"Math arg out of domain of func",34:"Math result not representable",35:"File locking deadlock error",36:"File or path name too long",37:"No record locks available",38:"Function not implemented",39:"Directory not empty",40:"Too many symbolic links",42:"No message of desired type",43:"Identifier removed",44:"Channel number out of range",45:"Level 2 not synchronized",46:"Level 3 halted",47:"Level 3 reset",48:"Link number out of range",49:"Protocol driver not attached",50:"No CSI structure available",51:"Level 2 halted",52:"Invalid exchange",53:"Invalid request descriptor",54:"Exchange full",55:"No anode",56:"Invalid request code",57:"Invalid slot",59:"Bad font file fmt",60:"Device not a stream",61:"No data (for no delay io)",62:"Timer expired",63:"Out of streams resources",64:"Machine is not on the network",65:"Package not installed",66:"The object is remote",67:"The link has been severed",68:"Advertise error",69:"Srmount error",70:"Communication error on send",71:"Protocol error",72:"Multihop attempted",73:"Cross mount point (not really error)",74:"Trying to read unreadable message",75:"Value too large for defined data type",76:"Given log. name not unique",77:"f.d. invalid for this operation",78:"Remote address changed",79:"Can access a needed shared lib",80:"Accessing a corrupted shared lib",81:".lib section in a.out corrupted",82:"Attempting to link in too many libs",83:"Attempting to exec a shared library",84:"Illegal byte sequence",86:"Streams pipe error",87:"Too many users",88:"Socket operation on non-socket",89:"Destination address required",90:"Message too long",91:"Protocol wrong type for socket",92:"Protocol not available",93:"Unknown protocol",94:"Socket type not supported",95:"Not supported",96:"Protocol family not supported",97:"Address family not supported by protocol family",98:"Address already in use",99:"Address not available",100:"Network interface is not configured",101:"Network is unreachable",102:"Connection reset by network",103:"Connection aborted",104:"Connection reset by peer",105:"No buffer space available",106:"Socket is already connected",107:"Socket is not connected",108:"Can't send after socket shutdown",109:"Too many references",110:"Connection timed out",111:"Connection refused",112:"Host is down",113:"Host is unreachable",114:"Socket already connected",115:"Connection already in progress",116:"Stale file handle",122:"Quota exceeded",123:"No medium (in tape drive)",125:"Operation canceled",130:"Previous owner died",131:"State not recoverable"};
|
|
|
|
|
|
var ___errno_state=0;function ___setErrNo(value) {
|
|
// For convenient setting and returning of errno.
|
|
HEAP32[((___errno_state)>>2)]=value;
|
|
return value;
|
|
}
|
|
|
|
var TTY={ttys:[],init:function () {
|
|
// https://github.com/kripken/emscripten/pull/1555
|
|
// if (ENVIRONMENT_IS_NODE) {
|
|
// // currently, FS.init does not distinguish if process.stdin is a file or TTY
|
|
// // device, it always assumes it's a TTY device. because of this, we're forcing
|
|
// // process.stdin to UTF8 encoding to at least make stdin reading compatible
|
|
// // with text files until FS.init can be refactored.
|
|
// process['stdin']['setEncoding']('utf8');
|
|
// }
|
|
},shutdown:function () {
|
|
// https://github.com/kripken/emscripten/pull/1555
|
|
// if (ENVIRONMENT_IS_NODE) {
|
|
// // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
|
|
// // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
|
|
// // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
|
|
// // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
|
|
// // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
|
|
// process['stdin']['pause']();
|
|
// }
|
|
},register:function (dev, ops) {
|
|
TTY.ttys[dev] = { input: [], output: [], ops: ops };
|
|
FS.registerDevice(dev, TTY.stream_ops);
|
|
},stream_ops:{open:function (stream) {
|
|
var tty = TTY.ttys[stream.node.rdev];
|
|
if (!tty) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
|
|
}
|
|
stream.tty = tty;
|
|
stream.seekable = false;
|
|
},close:function (stream) {
|
|
// flush any pending line data
|
|
if (stream.tty.output.length) {
|
|
stream.tty.ops.put_char(stream.tty, 10);
|
|
}
|
|
},read:function (stream, buffer, offset, length, pos /* ignored */) {
|
|
if (!stream.tty || !stream.tty.ops.get_char) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENXIO);
|
|
}
|
|
var bytesRead = 0;
|
|
for (var i = 0; i < length; i++) {
|
|
var result;
|
|
try {
|
|
result = stream.tty.ops.get_char(stream.tty);
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EIO);
|
|
}
|
|
if (result === undefined && bytesRead === 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
|
|
}
|
|
if (result === null || result === undefined) break;
|
|
bytesRead++;
|
|
buffer[offset+i] = result;
|
|
}
|
|
if (bytesRead) {
|
|
stream.node.timestamp = Date.now();
|
|
}
|
|
return bytesRead;
|
|
},write:function (stream, buffer, offset, length, pos) {
|
|
if (!stream.tty || !stream.tty.ops.put_char) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENXIO);
|
|
}
|
|
for (var i = 0; i < length; i++) {
|
|
try {
|
|
stream.tty.ops.put_char(stream.tty, buffer[offset+i]);
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EIO);
|
|
}
|
|
}
|
|
if (length) {
|
|
stream.node.timestamp = Date.now();
|
|
}
|
|
return i;
|
|
}},default_tty_ops:{get_char:function (tty) {
|
|
if (!tty.input.length) {
|
|
var result = null;
|
|
if (ENVIRONMENT_IS_NODE) {
|
|
result = process['stdin']['read']();
|
|
if (!result) {
|
|
if (process['stdin']['_readableState'] && process['stdin']['_readableState']['ended']) {
|
|
return null; // EOF
|
|
}
|
|
return undefined; // no data available
|
|
}
|
|
} else if (typeof window != 'undefined' &&
|
|
typeof window.prompt == 'function') {
|
|
// Browser.
|
|
result = window.prompt('Input: '); // returns null on cancel
|
|
if (result !== null) {
|
|
result += '\n';
|
|
}
|
|
} else if (typeof readline == 'function') {
|
|
// Command line.
|
|
result = readline();
|
|
if (result !== null) {
|
|
result += '\n';
|
|
}
|
|
}
|
|
if (!result) {
|
|
return null;
|
|
}
|
|
tty.input = intArrayFromString(result, true);
|
|
}
|
|
return tty.input.shift();
|
|
},put_char:function (tty, val) {
|
|
if (val === null || val === 10) {
|
|
Module['print'](tty.output.join(''));
|
|
tty.output = [];
|
|
} else {
|
|
tty.output.push(TTY.utf8.processCChar(val));
|
|
}
|
|
}},default_tty1_ops:{put_char:function (tty, val) {
|
|
if (val === null || val === 10) {
|
|
Module['printErr'](tty.output.join(''));
|
|
tty.output = [];
|
|
} else {
|
|
tty.output.push(TTY.utf8.processCChar(val));
|
|
}
|
|
}}};
|
|
|
|
var MEMFS={ops_table:null,CONTENT_OWNING:1,CONTENT_FLEXIBLE:2,CONTENT_FIXED:3,mount:function (mount) {
|
|
return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
|
|
},createNode:function (parent, name, mode, dev) {
|
|
if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
|
|
// no supported
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
if (!MEMFS.ops_table) {
|
|
MEMFS.ops_table = {
|
|
dir: {
|
|
node: {
|
|
getattr: MEMFS.node_ops.getattr,
|
|
setattr: MEMFS.node_ops.setattr,
|
|
lookup: MEMFS.node_ops.lookup,
|
|
mknod: MEMFS.node_ops.mknod,
|
|
rename: MEMFS.node_ops.rename,
|
|
unlink: MEMFS.node_ops.unlink,
|
|
rmdir: MEMFS.node_ops.rmdir,
|
|
readdir: MEMFS.node_ops.readdir,
|
|
symlink: MEMFS.node_ops.symlink
|
|
},
|
|
stream: {
|
|
llseek: MEMFS.stream_ops.llseek
|
|
}
|
|
},
|
|
file: {
|
|
node: {
|
|
getattr: MEMFS.node_ops.getattr,
|
|
setattr: MEMFS.node_ops.setattr
|
|
},
|
|
stream: {
|
|
llseek: MEMFS.stream_ops.llseek,
|
|
read: MEMFS.stream_ops.read,
|
|
write: MEMFS.stream_ops.write,
|
|
allocate: MEMFS.stream_ops.allocate,
|
|
mmap: MEMFS.stream_ops.mmap
|
|
}
|
|
},
|
|
link: {
|
|
node: {
|
|
getattr: MEMFS.node_ops.getattr,
|
|
setattr: MEMFS.node_ops.setattr,
|
|
readlink: MEMFS.node_ops.readlink
|
|
},
|
|
stream: {}
|
|
},
|
|
chrdev: {
|
|
node: {
|
|
getattr: MEMFS.node_ops.getattr,
|
|
setattr: MEMFS.node_ops.setattr
|
|
},
|
|
stream: FS.chrdev_stream_ops
|
|
},
|
|
};
|
|
}
|
|
var node = FS.createNode(parent, name, mode, dev);
|
|
if (FS.isDir(node.mode)) {
|
|
node.node_ops = MEMFS.ops_table.dir.node;
|
|
node.stream_ops = MEMFS.ops_table.dir.stream;
|
|
node.contents = {};
|
|
} else if (FS.isFile(node.mode)) {
|
|
node.node_ops = MEMFS.ops_table.file.node;
|
|
node.stream_ops = MEMFS.ops_table.file.stream;
|
|
node.contents = [];
|
|
node.contentMode = MEMFS.CONTENT_FLEXIBLE;
|
|
} else if (FS.isLink(node.mode)) {
|
|
node.node_ops = MEMFS.ops_table.link.node;
|
|
node.stream_ops = MEMFS.ops_table.link.stream;
|
|
} else if (FS.isChrdev(node.mode)) {
|
|
node.node_ops = MEMFS.ops_table.chrdev.node;
|
|
node.stream_ops = MEMFS.ops_table.chrdev.stream;
|
|
}
|
|
node.timestamp = Date.now();
|
|
// add the new node to the parent
|
|
if (parent) {
|
|
parent.contents[name] = node;
|
|
}
|
|
return node;
|
|
},ensureFlexible:function (node) {
|
|
if (node.contentMode !== MEMFS.CONTENT_FLEXIBLE) {
|
|
var contents = node.contents;
|
|
node.contents = Array.prototype.slice.call(contents);
|
|
node.contentMode = MEMFS.CONTENT_FLEXIBLE;
|
|
}
|
|
},node_ops:{getattr:function (node) {
|
|
var attr = {};
|
|
// device numbers reuse inode numbers.
|
|
attr.dev = FS.isChrdev(node.mode) ? node.id : 1;
|
|
attr.ino = node.id;
|
|
attr.mode = node.mode;
|
|
attr.nlink = 1;
|
|
attr.uid = 0;
|
|
attr.gid = 0;
|
|
attr.rdev = node.rdev;
|
|
if (FS.isDir(node.mode)) {
|
|
attr.size = 4096;
|
|
} else if (FS.isFile(node.mode)) {
|
|
attr.size = node.contents.length;
|
|
} else if (FS.isLink(node.mode)) {
|
|
attr.size = node.link.length;
|
|
} else {
|
|
attr.size = 0;
|
|
}
|
|
attr.atime = new Date(node.timestamp);
|
|
attr.mtime = new Date(node.timestamp);
|
|
attr.ctime = new Date(node.timestamp);
|
|
// NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
|
|
// but this is not required by the standard.
|
|
attr.blksize = 4096;
|
|
attr.blocks = Math.ceil(attr.size / attr.blksize);
|
|
return attr;
|
|
},setattr:function (node, attr) {
|
|
if (attr.mode !== undefined) {
|
|
node.mode = attr.mode;
|
|
}
|
|
if (attr.timestamp !== undefined) {
|
|
node.timestamp = attr.timestamp;
|
|
}
|
|
if (attr.size !== undefined) {
|
|
MEMFS.ensureFlexible(node);
|
|
var contents = node.contents;
|
|
if (attr.size < contents.length) contents.length = attr.size;
|
|
else while (attr.size > contents.length) contents.push(0);
|
|
}
|
|
},lookup:function (parent, name) {
|
|
throw FS.genericErrors[ERRNO_CODES.ENOENT];
|
|
},mknod:function (parent, name, mode, dev) {
|
|
return MEMFS.createNode(parent, name, mode, dev);
|
|
},rename:function (old_node, new_dir, new_name) {
|
|
// if we're overwriting a directory at new_name, make sure it's empty.
|
|
if (FS.isDir(old_node.mode)) {
|
|
var new_node;
|
|
try {
|
|
new_node = FS.lookupNode(new_dir, new_name);
|
|
} catch (e) {
|
|
}
|
|
if (new_node) {
|
|
for (var i in new_node.contents) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
|
|
}
|
|
}
|
|
}
|
|
// do the internal rewiring
|
|
delete old_node.parent.contents[old_node.name];
|
|
old_node.name = new_name;
|
|
new_dir.contents[new_name] = old_node;
|
|
old_node.parent = new_dir;
|
|
},unlink:function (parent, name) {
|
|
delete parent.contents[name];
|
|
},rmdir:function (parent, name) {
|
|
var node = FS.lookupNode(parent, name);
|
|
for (var i in node.contents) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
|
|
}
|
|
delete parent.contents[name];
|
|
},readdir:function (node) {
|
|
var entries = ['.', '..']
|
|
for (var key in node.contents) {
|
|
if (!node.contents.hasOwnProperty(key)) {
|
|
continue;
|
|
}
|
|
entries.push(key);
|
|
}
|
|
return entries;
|
|
},symlink:function (parent, newname, oldpath) {
|
|
var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0);
|
|
node.link = oldpath;
|
|
return node;
|
|
},readlink:function (node) {
|
|
if (!FS.isLink(node.mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
return node.link;
|
|
}},stream_ops:{read:function (stream, buffer, offset, length, position) {
|
|
var contents = stream.node.contents;
|
|
if (position >= contents.length)
|
|
return 0;
|
|
var size = Math.min(contents.length - position, length);
|
|
assert(size >= 0);
|
|
if (size > 8 && contents.subarray) { // non-trivial, and typed array
|
|
buffer.set(contents.subarray(position, position + size), offset);
|
|
} else
|
|
{
|
|
for (var i = 0; i < size; i++) {
|
|
buffer[offset + i] = contents[position + i];
|
|
}
|
|
}
|
|
return size;
|
|
},write:function (stream, buffer, offset, length, position, canOwn) {
|
|
var node = stream.node;
|
|
node.timestamp = Date.now();
|
|
var contents = node.contents;
|
|
if (length && contents.length === 0 && position === 0 && buffer.subarray) {
|
|
// just replace it with the new data
|
|
if (canOwn && offset === 0) {
|
|
node.contents = buffer; // this could be a subarray of Emscripten HEAP, or allocated from some other source.
|
|
node.contentMode = (buffer.buffer === HEAP8.buffer) ? MEMFS.CONTENT_OWNING : MEMFS.CONTENT_FIXED;
|
|
} else {
|
|
node.contents = new Uint8Array(buffer.subarray(offset, offset+length));
|
|
node.contentMode = MEMFS.CONTENT_FIXED;
|
|
}
|
|
return length;
|
|
}
|
|
MEMFS.ensureFlexible(node);
|
|
var contents = node.contents;
|
|
while (contents.length < position) contents.push(0);
|
|
for (var i = 0; i < length; i++) {
|
|
contents[position + i] = buffer[offset + i];
|
|
}
|
|
return length;
|
|
},llseek:function (stream, offset, whence) {
|
|
var position = offset;
|
|
if (whence === 1) { // SEEK_CUR.
|
|
position += stream.position;
|
|
} else if (whence === 2) { // SEEK_END.
|
|
if (FS.isFile(stream.node.mode)) {
|
|
position += stream.node.contents.length;
|
|
}
|
|
}
|
|
if (position < 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
stream.ungotten = [];
|
|
stream.position = position;
|
|
return position;
|
|
},allocate:function (stream, offset, length) {
|
|
MEMFS.ensureFlexible(stream.node);
|
|
var contents = stream.node.contents;
|
|
var limit = offset + length;
|
|
while (limit > contents.length) contents.push(0);
|
|
},mmap:function (stream, buffer, offset, length, position, prot, flags) {
|
|
if (!FS.isFile(stream.node.mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
|
|
}
|
|
var ptr;
|
|
var allocated;
|
|
var contents = stream.node.contents;
|
|
// Only make a new copy when MAP_PRIVATE is specified.
|
|
if ( !(flags & 2) &&
|
|
(contents.buffer === buffer || contents.buffer === buffer.buffer) ) {
|
|
// We can't emulate MAP_SHARED when the file is not backed by the buffer
|
|
// we're mapping to (e.g. the HEAP buffer).
|
|
allocated = false;
|
|
ptr = contents.byteOffset;
|
|
} else {
|
|
// Try to avoid unnecessary slices.
|
|
if (position > 0 || position + length < contents.length) {
|
|
if (contents.subarray) {
|
|
contents = contents.subarray(position, position + length);
|
|
} else {
|
|
contents = Array.prototype.slice.call(contents, position, position + length);
|
|
}
|
|
}
|
|
allocated = true;
|
|
ptr = _malloc(length);
|
|
if (!ptr) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOMEM);
|
|
}
|
|
buffer.set(contents, ptr);
|
|
}
|
|
return { ptr: ptr, allocated: allocated };
|
|
}}};
|
|
|
|
var IDBFS={dbs:{},indexedDB:function () {
|
|
return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
|
|
},DB_VERSION:21,DB_STORE_NAME:"FILE_DATA",mount:function (mount) {
|
|
// reuse all of the core MEMFS functionality
|
|
return MEMFS.mount.apply(null, arguments);
|
|
},syncfs:function (mount, populate, callback) {
|
|
IDBFS.getLocalSet(mount, function(err, local) {
|
|
if (err) return callback(err);
|
|
|
|
IDBFS.getRemoteSet(mount, function(err, remote) {
|
|
if (err) return callback(err);
|
|
|
|
var src = populate ? remote : local;
|
|
var dst = populate ? local : remote;
|
|
|
|
IDBFS.reconcile(src, dst, callback);
|
|
});
|
|
});
|
|
},getDB:function (name, callback) {
|
|
// check the cache first
|
|
var db = IDBFS.dbs[name];
|
|
if (db) {
|
|
return callback(null, db);
|
|
}
|
|
|
|
var req;
|
|
try {
|
|
req = IDBFS.indexedDB().open(name, IDBFS.DB_VERSION);
|
|
} catch (e) {
|
|
return callback(e);
|
|
}
|
|
req.onupgradeneeded = function(e) {
|
|
var db = e.target.result;
|
|
var transaction = e.target.transaction;
|
|
|
|
var fileStore;
|
|
|
|
if (db.objectStoreNames.contains(IDBFS.DB_STORE_NAME)) {
|
|
fileStore = transaction.objectStore(IDBFS.DB_STORE_NAME);
|
|
} else {
|
|
fileStore = db.createObjectStore(IDBFS.DB_STORE_NAME);
|
|
}
|
|
|
|
fileStore.createIndex('timestamp', 'timestamp', { unique: false });
|
|
};
|
|
req.onsuccess = function() {
|
|
db = req.result;
|
|
|
|
// add to the cache
|
|
IDBFS.dbs[name] = db;
|
|
callback(null, db);
|
|
};
|
|
req.onerror = function() {
|
|
callback(this.error);
|
|
};
|
|
},getLocalSet:function (mount, callback) {
|
|
var entries = {};
|
|
|
|
function isRealDir(p) {
|
|
return p !== '.' && p !== '..';
|
|
};
|
|
function toAbsolute(root) {
|
|
return function(p) {
|
|
return PATH.join2(root, p);
|
|
}
|
|
};
|
|
|
|
var check = FS.readdir(mount.mountpoint).filter(isRealDir).map(toAbsolute(mount.mountpoint));
|
|
|
|
while (check.length) {
|
|
var path = check.pop();
|
|
var stat;
|
|
|
|
try {
|
|
stat = FS.stat(path);
|
|
} catch (e) {
|
|
return callback(e);
|
|
}
|
|
|
|
if (FS.isDir(stat.mode)) {
|
|
check.push.apply(check, FS.readdir(path).filter(isRealDir).map(toAbsolute(path)));
|
|
}
|
|
|
|
entries[path] = { timestamp: stat.mtime };
|
|
}
|
|
|
|
return callback(null, { type: 'local', entries: entries });
|
|
},getRemoteSet:function (mount, callback) {
|
|
var entries = {};
|
|
|
|
IDBFS.getDB(mount.mountpoint, function(err, db) {
|
|
if (err) return callback(err);
|
|
|
|
var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readonly');
|
|
transaction.onerror = function() { callback(this.error); };
|
|
|
|
var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
|
|
var index = store.index('timestamp');
|
|
|
|
index.openKeyCursor().onsuccess = function(event) {
|
|
var cursor = event.target.result;
|
|
|
|
if (!cursor) {
|
|
return callback(null, { type: 'remote', db: db, entries: entries });
|
|
}
|
|
|
|
entries[cursor.primaryKey] = { timestamp: cursor.key };
|
|
|
|
cursor.continue();
|
|
};
|
|
});
|
|
},loadLocalEntry:function (path, callback) {
|
|
var stat, node;
|
|
|
|
try {
|
|
var lookup = FS.lookupPath(path);
|
|
node = lookup.node;
|
|
stat = FS.stat(path);
|
|
} catch (e) {
|
|
return callback(e);
|
|
}
|
|
|
|
if (FS.isDir(stat.mode)) {
|
|
return callback(null, { timestamp: stat.mtime, mode: stat.mode });
|
|
} else if (FS.isFile(stat.mode)) {
|
|
return callback(null, { timestamp: stat.mtime, mode: stat.mode, contents: node.contents });
|
|
} else {
|
|
return callback(new Error('node type not supported'));
|
|
}
|
|
},storeLocalEntry:function (path, entry, callback) {
|
|
try {
|
|
if (FS.isDir(entry.mode)) {
|
|
FS.mkdir(path, entry.mode);
|
|
} else if (FS.isFile(entry.mode)) {
|
|
FS.writeFile(path, entry.contents, { encoding: 'binary', canOwn: true });
|
|
} else {
|
|
return callback(new Error('node type not supported'));
|
|
}
|
|
|
|
FS.utime(path, entry.timestamp, entry.timestamp);
|
|
} catch (e) {
|
|
return callback(e);
|
|
}
|
|
|
|
callback(null);
|
|
},removeLocalEntry:function (path, callback) {
|
|
try {
|
|
var lookup = FS.lookupPath(path);
|
|
var stat = FS.stat(path);
|
|
|
|
if (FS.isDir(stat.mode)) {
|
|
FS.rmdir(path);
|
|
} else if (FS.isFile(stat.mode)) {
|
|
FS.unlink(path);
|
|
}
|
|
} catch (e) {
|
|
return callback(e);
|
|
}
|
|
|
|
callback(null);
|
|
},loadRemoteEntry:function (store, path, callback) {
|
|
var req = store.get(path);
|
|
req.onsuccess = function(event) { callback(null, event.target.result); };
|
|
req.onerror = function() { callback(this.error); };
|
|
},storeRemoteEntry:function (store, path, entry, callback) {
|
|
var req = store.put(entry, path);
|
|
req.onsuccess = function() { callback(null); };
|
|
req.onerror = function() { callback(this.error); };
|
|
},removeRemoteEntry:function (store, path, callback) {
|
|
var req = store.delete(path);
|
|
req.onsuccess = function() { callback(null); };
|
|
req.onerror = function() { callback(this.error); };
|
|
},reconcile:function (src, dst, callback) {
|
|
var total = 0;
|
|
|
|
var create = [];
|
|
Object.keys(src.entries).forEach(function (key) {
|
|
var e = src.entries[key];
|
|
var e2 = dst.entries[key];
|
|
if (!e2 || e.timestamp > e2.timestamp) {
|
|
create.push(key);
|
|
total++;
|
|
}
|
|
});
|
|
|
|
var remove = [];
|
|
Object.keys(dst.entries).forEach(function (key) {
|
|
var e = dst.entries[key];
|
|
var e2 = src.entries[key];
|
|
if (!e2) {
|
|
remove.push(key);
|
|
total++;
|
|
}
|
|
});
|
|
|
|
if (!total) {
|
|
return callback(null);
|
|
}
|
|
|
|
var errored = false;
|
|
var completed = 0;
|
|
var db = src.type === 'remote' ? src.db : dst.db;
|
|
var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readwrite');
|
|
var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
|
|
|
|
function done(err) {
|
|
if (err) {
|
|
if (!done.errored) {
|
|
done.errored = true;
|
|
return callback(err);
|
|
}
|
|
return;
|
|
}
|
|
if (++completed >= total) {
|
|
return callback(null);
|
|
}
|
|
};
|
|
|
|
transaction.onerror = function() { done(this.error); };
|
|
|
|
// sort paths in ascending order so directory entries are created
|
|
// before the files inside them
|
|
create.sort().forEach(function (path) {
|
|
if (dst.type === 'local') {
|
|
IDBFS.loadRemoteEntry(store, path, function (err, entry) {
|
|
if (err) return done(err);
|
|
IDBFS.storeLocalEntry(path, entry, done);
|
|
});
|
|
} else {
|
|
IDBFS.loadLocalEntry(path, function (err, entry) {
|
|
if (err) return done(err);
|
|
IDBFS.storeRemoteEntry(store, path, entry, done);
|
|
});
|
|
}
|
|
});
|
|
|
|
// sort paths in descending order so files are deleted before their
|
|
// parent directories
|
|
remove.sort().reverse().forEach(function(path) {
|
|
if (dst.type === 'local') {
|
|
IDBFS.removeLocalEntry(path, done);
|
|
} else {
|
|
IDBFS.removeRemoteEntry(store, path, done);
|
|
}
|
|
});
|
|
}};
|
|
|
|
var NODEFS={isWindows:false,staticInit:function () {
|
|
NODEFS.isWindows = !!process.platform.match(/^win/);
|
|
},mount:function (mount) {
|
|
assert(ENVIRONMENT_IS_NODE);
|
|
return NODEFS.createNode(null, '/', NODEFS.getMode(mount.opts.root), 0);
|
|
},createNode:function (parent, name, mode, dev) {
|
|
if (!FS.isDir(mode) && !FS.isFile(mode) && !FS.isLink(mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
var node = FS.createNode(parent, name, mode);
|
|
node.node_ops = NODEFS.node_ops;
|
|
node.stream_ops = NODEFS.stream_ops;
|
|
return node;
|
|
},getMode:function (path) {
|
|
var stat;
|
|
try {
|
|
stat = fs.lstatSync(path);
|
|
if (NODEFS.isWindows) {
|
|
// On Windows, directories return permission bits 'rw-rw-rw-', even though they have 'rwxrwxrwx', so
|
|
// propagate write bits to execute bits.
|
|
stat.mode = stat.mode | ((stat.mode & 146) >> 1);
|
|
}
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
return stat.mode;
|
|
},realPath:function (node) {
|
|
var parts = [];
|
|
while (node.parent !== node) {
|
|
parts.push(node.name);
|
|
node = node.parent;
|
|
}
|
|
parts.push(node.mount.opts.root);
|
|
parts.reverse();
|
|
return PATH.join.apply(null, parts);
|
|
},flagsToPermissionStringMap:{0:"r",1:"r+",2:"r+",64:"r",65:"r+",66:"r+",129:"rx+",193:"rx+",514:"w+",577:"w",578:"w+",705:"wx",706:"wx+",1024:"a",1025:"a",1026:"a+",1089:"a",1090:"a+",1153:"ax",1154:"ax+",1217:"ax",1218:"ax+",4096:"rs",4098:"rs+"},flagsToPermissionString:function (flags) {
|
|
if (flags in NODEFS.flagsToPermissionStringMap) {
|
|
return NODEFS.flagsToPermissionStringMap[flags];
|
|
} else {
|
|
return flags;
|
|
}
|
|
},node_ops:{getattr:function (node) {
|
|
var path = NODEFS.realPath(node);
|
|
var stat;
|
|
try {
|
|
stat = fs.lstatSync(path);
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
// node.js v0.10.20 doesn't report blksize and blocks on Windows. Fake them with default blksize of 4096.
|
|
// See http://support.microsoft.com/kb/140365
|
|
if (NODEFS.isWindows && !stat.blksize) {
|
|
stat.blksize = 4096;
|
|
}
|
|
if (NODEFS.isWindows && !stat.blocks) {
|
|
stat.blocks = (stat.size+stat.blksize-1)/stat.blksize|0;
|
|
}
|
|
return {
|
|
dev: stat.dev,
|
|
ino: stat.ino,
|
|
mode: stat.mode,
|
|
nlink: stat.nlink,
|
|
uid: stat.uid,
|
|
gid: stat.gid,
|
|
rdev: stat.rdev,
|
|
size: stat.size,
|
|
atime: stat.atime,
|
|
mtime: stat.mtime,
|
|
ctime: stat.ctime,
|
|
blksize: stat.blksize,
|
|
blocks: stat.blocks
|
|
};
|
|
},setattr:function (node, attr) {
|
|
var path = NODEFS.realPath(node);
|
|
try {
|
|
if (attr.mode !== undefined) {
|
|
fs.chmodSync(path, attr.mode);
|
|
// update the common node structure mode as well
|
|
node.mode = attr.mode;
|
|
}
|
|
if (attr.timestamp !== undefined) {
|
|
var date = new Date(attr.timestamp);
|
|
fs.utimesSync(path, date, date);
|
|
}
|
|
if (attr.size !== undefined) {
|
|
fs.truncateSync(path, attr.size);
|
|
}
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
},lookup:function (parent, name) {
|
|
var path = PATH.join2(NODEFS.realPath(parent), name);
|
|
var mode = NODEFS.getMode(path);
|
|
return NODEFS.createNode(parent, name, mode);
|
|
},mknod:function (parent, name, mode, dev) {
|
|
var node = NODEFS.createNode(parent, name, mode, dev);
|
|
// create the backing node for this in the fs root as well
|
|
var path = NODEFS.realPath(node);
|
|
try {
|
|
if (FS.isDir(node.mode)) {
|
|
fs.mkdirSync(path, node.mode);
|
|
} else {
|
|
fs.writeFileSync(path, '', { mode: node.mode });
|
|
}
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
return node;
|
|
},rename:function (oldNode, newDir, newName) {
|
|
var oldPath = NODEFS.realPath(oldNode);
|
|
var newPath = PATH.join2(NODEFS.realPath(newDir), newName);
|
|
try {
|
|
fs.renameSync(oldPath, newPath);
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
},unlink:function (parent, name) {
|
|
var path = PATH.join2(NODEFS.realPath(parent), name);
|
|
try {
|
|
fs.unlinkSync(path);
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
},rmdir:function (parent, name) {
|
|
var path = PATH.join2(NODEFS.realPath(parent), name);
|
|
try {
|
|
fs.rmdirSync(path);
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
},readdir:function (node) {
|
|
var path = NODEFS.realPath(node);
|
|
try {
|
|
return fs.readdirSync(path);
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
},symlink:function (parent, newName, oldPath) {
|
|
var newPath = PATH.join2(NODEFS.realPath(parent), newName);
|
|
try {
|
|
fs.symlinkSync(oldPath, newPath);
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
},readlink:function (node) {
|
|
var path = NODEFS.realPath(node);
|
|
try {
|
|
return fs.readlinkSync(path);
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
}},stream_ops:{open:function (stream) {
|
|
var path = NODEFS.realPath(stream.node);
|
|
try {
|
|
if (FS.isFile(stream.node.mode)) {
|
|
stream.nfd = fs.openSync(path, NODEFS.flagsToPermissionString(stream.flags));
|
|
}
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
},close:function (stream) {
|
|
try {
|
|
if (FS.isFile(stream.node.mode) && stream.nfd) {
|
|
fs.closeSync(stream.nfd);
|
|
}
|
|
} catch (e) {
|
|
if (!e.code) throw e;
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
},read:function (stream, buffer, offset, length, position) {
|
|
// FIXME this is terrible.
|
|
var nbuffer = new Buffer(length);
|
|
var res;
|
|
try {
|
|
res = fs.readSync(stream.nfd, nbuffer, 0, length, position);
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
if (res > 0) {
|
|
for (var i = 0; i < res; i++) {
|
|
buffer[offset + i] = nbuffer[i];
|
|
}
|
|
}
|
|
return res;
|
|
},write:function (stream, buffer, offset, length, position) {
|
|
// FIXME this is terrible.
|
|
var nbuffer = new Buffer(buffer.subarray(offset, offset + length));
|
|
var res;
|
|
try {
|
|
res = fs.writeSync(stream.nfd, nbuffer, 0, length, position);
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
return res;
|
|
},llseek:function (stream, offset, whence) {
|
|
var position = offset;
|
|
if (whence === 1) { // SEEK_CUR.
|
|
position += stream.position;
|
|
} else if (whence === 2) { // SEEK_END.
|
|
if (FS.isFile(stream.node.mode)) {
|
|
try {
|
|
var stat = fs.fstatSync(stream.nfd);
|
|
position += stat.size;
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES[e.code]);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (position < 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
|
|
stream.position = position;
|
|
return position;
|
|
}}};
|
|
|
|
var _stdin=allocate(1, "i32*", ALLOC_STATIC);
|
|
|
|
var _stdout=allocate(1, "i32*", ALLOC_STATIC);
|
|
|
|
var _stderr=allocate(1, "i32*", ALLOC_STATIC);
|
|
|
|
function _fflush(stream) {
|
|
// int fflush(FILE *stream);
|
|
// http://pubs.opengroup.org/onlinepubs/000095399/functions/fflush.html
|
|
// we don't currently perform any user-space buffering of data
|
|
}var FS={root:null,mounts:[],devices:[null],streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,genericErrors:{},handleFSError:function (e) {
|
|
if (!(e instanceof FS.ErrnoError)) throw e + ' : ' + stackTrace();
|
|
return ___setErrNo(e.errno);
|
|
},lookupPath:function (path, opts) {
|
|
path = PATH.resolve(FS.cwd(), path);
|
|
opts = opts || {};
|
|
|
|
var defaults = {
|
|
follow_mount: true,
|
|
recurse_count: 0
|
|
};
|
|
for (var key in defaults) {
|
|
if (opts[key] === undefined) {
|
|
opts[key] = defaults[key];
|
|
}
|
|
}
|
|
|
|
if (opts.recurse_count > 8) { // max recursive lookup of 8
|
|
throw new FS.ErrnoError(ERRNO_CODES.ELOOP);
|
|
}
|
|
|
|
// split the path
|
|
var parts = PATH.normalizeArray(path.split('/').filter(function(p) {
|
|
return !!p;
|
|
}), false);
|
|
|
|
// start at the root
|
|
var current = FS.root;
|
|
var current_path = '/';
|
|
|
|
for (var i = 0; i < parts.length; i++) {
|
|
var islast = (i === parts.length-1);
|
|
if (islast && opts.parent) {
|
|
// stop resolving
|
|
break;
|
|
}
|
|
|
|
current = FS.lookupNode(current, parts[i]);
|
|
current_path = PATH.join2(current_path, parts[i]);
|
|
|
|
// jump to the mount's root node if this is a mountpoint
|
|
if (FS.isMountpoint(current)) {
|
|
if (!islast || (islast && opts.follow_mount)) {
|
|
current = current.mounted.root;
|
|
}
|
|
}
|
|
|
|
// by default, lookupPath will not follow a symlink if it is the final path component.
|
|
// setting opts.follow = true will override this behavior.
|
|
if (!islast || opts.follow) {
|
|
var count = 0;
|
|
while (FS.isLink(current.mode)) {
|
|
var link = FS.readlink(current_path);
|
|
current_path = PATH.resolve(PATH.dirname(current_path), link);
|
|
|
|
var lookup = FS.lookupPath(current_path, { recurse_count: opts.recurse_count });
|
|
current = lookup.node;
|
|
|
|
if (count++ > 40) { // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
|
|
throw new FS.ErrnoError(ERRNO_CODES.ELOOP);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return { path: current_path, node: current };
|
|
},getPath:function (node) {
|
|
var path;
|
|
while (true) {
|
|
if (FS.isRoot(node)) {
|
|
var mount = node.mount.mountpoint;
|
|
if (!path) return mount;
|
|
return mount[mount.length-1] !== '/' ? mount + '/' + path : mount + path;
|
|
}
|
|
path = path ? node.name + '/' + path : node.name;
|
|
node = node.parent;
|
|
}
|
|
},hashName:function (parentid, name) {
|
|
var hash = 0;
|
|
|
|
|
|
for (var i = 0; i < name.length; i++) {
|
|
hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0;
|
|
}
|
|
return ((parentid + hash) >>> 0) % FS.nameTable.length;
|
|
},hashAddNode:function (node) {
|
|
var hash = FS.hashName(node.parent.id, node.name);
|
|
node.name_next = FS.nameTable[hash];
|
|
FS.nameTable[hash] = node;
|
|
},hashRemoveNode:function (node) {
|
|
var hash = FS.hashName(node.parent.id, node.name);
|
|
if (FS.nameTable[hash] === node) {
|
|
FS.nameTable[hash] = node.name_next;
|
|
} else {
|
|
var current = FS.nameTable[hash];
|
|
while (current) {
|
|
if (current.name_next === node) {
|
|
current.name_next = node.name_next;
|
|
break;
|
|
}
|
|
current = current.name_next;
|
|
}
|
|
}
|
|
},lookupNode:function (parent, name) {
|
|
var err = FS.mayLookup(parent);
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
var hash = FS.hashName(parent.id, name);
|
|
for (var node = FS.nameTable[hash]; node; node = node.name_next) {
|
|
var nodeName = node.name;
|
|
if (node.parent.id === parent.id && nodeName === name) {
|
|
return node;
|
|
}
|
|
}
|
|
// if we failed to find it in the cache, call into the VFS
|
|
return FS.lookup(parent, name);
|
|
},createNode:function (parent, name, mode, rdev) {
|
|
if (!FS.FSNode) {
|
|
FS.FSNode = function(parent, name, mode, rdev) {
|
|
if (!parent) {
|
|
parent = this; // root node sets parent to itself
|
|
}
|
|
this.parent = parent;
|
|
this.mount = parent.mount;
|
|
this.mounted = null;
|
|
this.id = FS.nextInode++;
|
|
this.name = name;
|
|
this.mode = mode;
|
|
this.node_ops = {};
|
|
this.stream_ops = {};
|
|
this.rdev = rdev;
|
|
};
|
|
|
|
FS.FSNode.prototype = {};
|
|
|
|
// compatibility
|
|
var readMode = 292 | 73;
|
|
var writeMode = 146;
|
|
|
|
// NOTE we must use Object.defineProperties instead of individual calls to
|
|
// Object.defineProperty in order to make closure compiler happy
|
|
Object.defineProperties(FS.FSNode.prototype, {
|
|
read: {
|
|
get: function() { return (this.mode & readMode) === readMode; },
|
|
set: function(val) { val ? this.mode |= readMode : this.mode &= ~readMode; }
|
|
},
|
|
write: {
|
|
get: function() { return (this.mode & writeMode) === writeMode; },
|
|
set: function(val) { val ? this.mode |= writeMode : this.mode &= ~writeMode; }
|
|
},
|
|
isFolder: {
|
|
get: function() { return FS.isDir(this.mode); },
|
|
},
|
|
isDevice: {
|
|
get: function() { return FS.isChrdev(this.mode); },
|
|
},
|
|
});
|
|
}
|
|
|
|
var node = new FS.FSNode(parent, name, mode, rdev);
|
|
|
|
FS.hashAddNode(node);
|
|
|
|
return node;
|
|
},destroyNode:function (node) {
|
|
FS.hashRemoveNode(node);
|
|
},isRoot:function (node) {
|
|
return node === node.parent;
|
|
},isMountpoint:function (node) {
|
|
return !!node.mounted;
|
|
},isFile:function (mode) {
|
|
return (mode & 61440) === 32768;
|
|
},isDir:function (mode) {
|
|
return (mode & 61440) === 16384;
|
|
},isLink:function (mode) {
|
|
return (mode & 61440) === 40960;
|
|
},isChrdev:function (mode) {
|
|
return (mode & 61440) === 8192;
|
|
},isBlkdev:function (mode) {
|
|
return (mode & 61440) === 24576;
|
|
},isFIFO:function (mode) {
|
|
return (mode & 61440) === 4096;
|
|
},isSocket:function (mode) {
|
|
return (mode & 49152) === 49152;
|
|
},flagModes:{"r":0,"rs":1052672,"r+":2,"w":577,"wx":705,"xw":705,"w+":578,"wx+":706,"xw+":706,"a":1089,"ax":1217,"xa":1217,"a+":1090,"ax+":1218,"xa+":1218},modeStringToFlags:function (str) {
|
|
var flags = FS.flagModes[str];
|
|
if (typeof flags === 'undefined') {
|
|
throw new Error('Unknown file open mode: ' + str);
|
|
}
|
|
return flags;
|
|
},flagsToPermissionString:function (flag) {
|
|
var accmode = flag & 2097155;
|
|
var perms = ['r', 'w', 'rw'][accmode];
|
|
if ((flag & 512)) {
|
|
perms += 'w';
|
|
}
|
|
return perms;
|
|
},nodePermissions:function (node, perms) {
|
|
if (FS.ignorePermissions) {
|
|
return 0;
|
|
}
|
|
// return 0 if any user, group or owner bits are set.
|
|
if (perms.indexOf('r') !== -1 && !(node.mode & 292)) {
|
|
return ERRNO_CODES.EACCES;
|
|
} else if (perms.indexOf('w') !== -1 && !(node.mode & 146)) {
|
|
return ERRNO_CODES.EACCES;
|
|
} else if (perms.indexOf('x') !== -1 && !(node.mode & 73)) {
|
|
return ERRNO_CODES.EACCES;
|
|
}
|
|
return 0;
|
|
},mayLookup:function (dir) {
|
|
return FS.nodePermissions(dir, 'x');
|
|
},mayCreate:function (dir, name) {
|
|
try {
|
|
var node = FS.lookupNode(dir, name);
|
|
return ERRNO_CODES.EEXIST;
|
|
} catch (e) {
|
|
}
|
|
return FS.nodePermissions(dir, 'wx');
|
|
},mayDelete:function (dir, name, isdir) {
|
|
var node;
|
|
try {
|
|
node = FS.lookupNode(dir, name);
|
|
} catch (e) {
|
|
return e.errno;
|
|
}
|
|
var err = FS.nodePermissions(dir, 'wx');
|
|
if (err) {
|
|
return err;
|
|
}
|
|
if (isdir) {
|
|
if (!FS.isDir(node.mode)) {
|
|
return ERRNO_CODES.ENOTDIR;
|
|
}
|
|
if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
|
|
return ERRNO_CODES.EBUSY;
|
|
}
|
|
} else {
|
|
if (FS.isDir(node.mode)) {
|
|
return ERRNO_CODES.EISDIR;
|
|
}
|
|
}
|
|
return 0;
|
|
},mayOpen:function (node, flags) {
|
|
if (!node) {
|
|
return ERRNO_CODES.ENOENT;
|
|
}
|
|
if (FS.isLink(node.mode)) {
|
|
return ERRNO_CODES.ELOOP;
|
|
} else if (FS.isDir(node.mode)) {
|
|
if ((flags & 2097155) !== 0 || // opening for write
|
|
(flags & 512)) {
|
|
return ERRNO_CODES.EISDIR;
|
|
}
|
|
}
|
|
return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
|
|
},MAX_OPEN_FDS:4096,nextfd:function (fd_start, fd_end) {
|
|
fd_start = fd_start || 0;
|
|
fd_end = fd_end || FS.MAX_OPEN_FDS;
|
|
for (var fd = fd_start; fd <= fd_end; fd++) {
|
|
if (!FS.streams[fd]) {
|
|
return fd;
|
|
}
|
|
}
|
|
throw new FS.ErrnoError(ERRNO_CODES.EMFILE);
|
|
},getStream:function (fd) {
|
|
return FS.streams[fd];
|
|
},createStream:function (stream, fd_start, fd_end) {
|
|
if (!FS.FSStream) {
|
|
FS.FSStream = function(){};
|
|
FS.FSStream.prototype = {};
|
|
// compatibility
|
|
Object.defineProperties(FS.FSStream.prototype, {
|
|
object: {
|
|
get: function() { return this.node; },
|
|
set: function(val) { this.node = val; }
|
|
},
|
|
isRead: {
|
|
get: function() { return (this.flags & 2097155) !== 1; }
|
|
},
|
|
isWrite: {
|
|
get: function() { return (this.flags & 2097155) !== 0; }
|
|
},
|
|
isAppend: {
|
|
get: function() { return (this.flags & 1024); }
|
|
}
|
|
});
|
|
}
|
|
if (0) {
|
|
// reuse the object
|
|
stream.__proto__ = FS.FSStream.prototype;
|
|
} else {
|
|
var newStream = new FS.FSStream();
|
|
for (var p in stream) {
|
|
newStream[p] = stream[p];
|
|
}
|
|
stream = newStream;
|
|
}
|
|
var fd = FS.nextfd(fd_start, fd_end);
|
|
stream.fd = fd;
|
|
FS.streams[fd] = stream;
|
|
return stream;
|
|
},closeStream:function (fd) {
|
|
FS.streams[fd] = null;
|
|
},getStreamFromPtr:function (ptr) {
|
|
return FS.streams[ptr - 1];
|
|
},getPtrForStream:function (stream) {
|
|
return stream ? stream.fd + 1 : 0;
|
|
},chrdev_stream_ops:{open:function (stream) {
|
|
var device = FS.getDevice(stream.node.rdev);
|
|
// override node's stream ops with the device's
|
|
stream.stream_ops = device.stream_ops;
|
|
// forward the open call
|
|
if (stream.stream_ops.open) {
|
|
stream.stream_ops.open(stream);
|
|
}
|
|
},llseek:function () {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
|
|
}},major:function (dev) {
|
|
return ((dev) >> 8);
|
|
},minor:function (dev) {
|
|
return ((dev) & 0xff);
|
|
},makedev:function (ma, mi) {
|
|
return ((ma) << 8 | (mi));
|
|
},registerDevice:function (dev, ops) {
|
|
FS.devices[dev] = { stream_ops: ops };
|
|
},getDevice:function (dev) {
|
|
return FS.devices[dev];
|
|
},getMounts:function (mount) {
|
|
var mounts = [];
|
|
var check = [mount];
|
|
|
|
while (check.length) {
|
|
var m = check.pop();
|
|
|
|
mounts.push(m);
|
|
|
|
check.push.apply(check, m.mounts);
|
|
}
|
|
|
|
return mounts;
|
|
},syncfs:function (populate, callback) {
|
|
if (typeof(populate) === 'function') {
|
|
callback = populate;
|
|
populate = false;
|
|
}
|
|
|
|
var mounts = FS.getMounts(FS.root.mount);
|
|
var completed = 0;
|
|
|
|
function done(err) {
|
|
if (err) {
|
|
if (!done.errored) {
|
|
done.errored = true;
|
|
return callback(err);
|
|
}
|
|
return;
|
|
}
|
|
if (++completed >= mounts.length) {
|
|
callback(null);
|
|
}
|
|
};
|
|
|
|
// sync all mounts
|
|
mounts.forEach(function (mount) {
|
|
if (!mount.type.syncfs) {
|
|
return done(null);
|
|
}
|
|
mount.type.syncfs(mount, populate, done);
|
|
});
|
|
},mount:function (type, opts, mountpoint) {
|
|
var root = mountpoint === '/';
|
|
var pseudo = !mountpoint;
|
|
var node;
|
|
|
|
if (root && FS.root) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
|
|
} else if (!root && !pseudo) {
|
|
var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
|
|
|
|
mountpoint = lookup.path; // use the absolute path
|
|
node = lookup.node;
|
|
|
|
if (FS.isMountpoint(node)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
|
|
}
|
|
|
|
if (!FS.isDir(node.mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
|
|
}
|
|
}
|
|
|
|
var mount = {
|
|
type: type,
|
|
opts: opts,
|
|
mountpoint: mountpoint,
|
|
mounts: []
|
|
};
|
|
|
|
// create a root node for the fs
|
|
var mountRoot = type.mount(mount);
|
|
mountRoot.mount = mount;
|
|
mount.root = mountRoot;
|
|
|
|
if (root) {
|
|
FS.root = mountRoot;
|
|
} else if (node) {
|
|
// set as a mountpoint
|
|
node.mounted = mount;
|
|
|
|
// add the new mount to the current mount's children
|
|
if (node.mount) {
|
|
node.mount.mounts.push(mount);
|
|
}
|
|
}
|
|
|
|
return mountRoot;
|
|
},unmount:function (mountpoint) {
|
|
var lookup = FS.lookupPath(mountpoint, { follow_mount: false });
|
|
|
|
if (!FS.isMountpoint(lookup.node)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
|
|
// destroy the nodes for this mount, and all its child mounts
|
|
var node = lookup.node;
|
|
var mount = node.mounted;
|
|
var mounts = FS.getMounts(mount);
|
|
|
|
Object.keys(FS.nameTable).forEach(function (hash) {
|
|
var current = FS.nameTable[hash];
|
|
|
|
while (current) {
|
|
var next = current.name_next;
|
|
|
|
if (mounts.indexOf(current.mount) !== -1) {
|
|
FS.destroyNode(current);
|
|
}
|
|
|
|
current = next;
|
|
}
|
|
});
|
|
|
|
// no longer a mountpoint
|
|
node.mounted = null;
|
|
|
|
// remove this mount from the child mounts
|
|
var idx = node.mount.mounts.indexOf(mount);
|
|
assert(idx !== -1);
|
|
node.mount.mounts.splice(idx, 1);
|
|
},lookup:function (parent, name) {
|
|
return parent.node_ops.lookup(parent, name);
|
|
},mknod:function (path, mode, dev) {
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
|
var parent = lookup.node;
|
|
var name = PATH.basename(path);
|
|
var err = FS.mayCreate(parent, name);
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
if (!parent.node_ops.mknod) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
return parent.node_ops.mknod(parent, name, mode, dev);
|
|
},create:function (path, mode) {
|
|
mode = mode !== undefined ? mode : 438 /* 0666 */;
|
|
mode &= 4095;
|
|
mode |= 32768;
|
|
return FS.mknod(path, mode, 0);
|
|
},mkdir:function (path, mode) {
|
|
mode = mode !== undefined ? mode : 511 /* 0777 */;
|
|
mode &= 511 | 512;
|
|
mode |= 16384;
|
|
return FS.mknod(path, mode, 0);
|
|
},mkdev:function (path, mode, dev) {
|
|
if (typeof(dev) === 'undefined') {
|
|
dev = mode;
|
|
mode = 438 /* 0666 */;
|
|
}
|
|
mode |= 8192;
|
|
return FS.mknod(path, mode, dev);
|
|
},symlink:function (oldpath, newpath) {
|
|
var lookup = FS.lookupPath(newpath, { parent: true });
|
|
var parent = lookup.node;
|
|
var newname = PATH.basename(newpath);
|
|
var err = FS.mayCreate(parent, newname);
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
if (!parent.node_ops.symlink) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
return parent.node_ops.symlink(parent, newname, oldpath);
|
|
},rename:function (old_path, new_path) {
|
|
var old_dirname = PATH.dirname(old_path);
|
|
var new_dirname = PATH.dirname(new_path);
|
|
var old_name = PATH.basename(old_path);
|
|
var new_name = PATH.basename(new_path);
|
|
// parents must exist
|
|
var lookup, old_dir, new_dir;
|
|
try {
|
|
lookup = FS.lookupPath(old_path, { parent: true });
|
|
old_dir = lookup.node;
|
|
lookup = FS.lookupPath(new_path, { parent: true });
|
|
new_dir = lookup.node;
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
|
|
}
|
|
// need to be part of the same mount
|
|
if (old_dir.mount !== new_dir.mount) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EXDEV);
|
|
}
|
|
// source must exist
|
|
var old_node = FS.lookupNode(old_dir, old_name);
|
|
// old path should not be an ancestor of the new path
|
|
var relative = PATH.relative(old_path, new_dirname);
|
|
if (relative.charAt(0) !== '.') {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
// new path should not be an ancestor of the old path
|
|
relative = PATH.relative(new_path, old_dirname);
|
|
if (relative.charAt(0) !== '.') {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
|
|
}
|
|
// see if the new path already exists
|
|
var new_node;
|
|
try {
|
|
new_node = FS.lookupNode(new_dir, new_name);
|
|
} catch (e) {
|
|
// not fatal
|
|
}
|
|
// early out if nothing needs to change
|
|
if (old_node === new_node) {
|
|
return;
|
|
}
|
|
// we'll need to delete the old entry
|
|
var isdir = FS.isDir(old_node.mode);
|
|
var err = FS.mayDelete(old_dir, old_name, isdir);
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
// need delete permissions if we'll be overwriting.
|
|
// need create permissions if new doesn't already exist.
|
|
err = new_node ?
|
|
FS.mayDelete(new_dir, new_name, isdir) :
|
|
FS.mayCreate(new_dir, new_name);
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
if (!old_dir.node_ops.rename) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
|
|
}
|
|
// if we are going to change the parent, check write permissions
|
|
if (new_dir !== old_dir) {
|
|
err = FS.nodePermissions(old_dir, 'w');
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
}
|
|
// remove the node from the lookup hash
|
|
FS.hashRemoveNode(old_node);
|
|
// do the underlying fs rename
|
|
try {
|
|
old_dir.node_ops.rename(old_node, new_dir, new_name);
|
|
} catch (e) {
|
|
throw e;
|
|
} finally {
|
|
// add the node back to the hash (in case node_ops.rename
|
|
// changed its name)
|
|
FS.hashAddNode(old_node);
|
|
}
|
|
},rmdir:function (path) {
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
|
var parent = lookup.node;
|
|
var name = PATH.basename(path);
|
|
var node = FS.lookupNode(parent, name);
|
|
var err = FS.mayDelete(parent, name, true);
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
if (!parent.node_ops.rmdir) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
if (FS.isMountpoint(node)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
|
|
}
|
|
parent.node_ops.rmdir(parent, name);
|
|
FS.destroyNode(node);
|
|
},readdir:function (path) {
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
|
var node = lookup.node;
|
|
if (!node.node_ops.readdir) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
|
|
}
|
|
return node.node_ops.readdir(node);
|
|
},unlink:function (path) {
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
|
var parent = lookup.node;
|
|
var name = PATH.basename(path);
|
|
var node = FS.lookupNode(parent, name);
|
|
var err = FS.mayDelete(parent, name, false);
|
|
if (err) {
|
|
// POSIX says unlink should set EPERM, not EISDIR
|
|
if (err === ERRNO_CODES.EISDIR) err = ERRNO_CODES.EPERM;
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
if (!parent.node_ops.unlink) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
if (FS.isMountpoint(node)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
|
|
}
|
|
parent.node_ops.unlink(parent, name);
|
|
FS.destroyNode(node);
|
|
},readlink:function (path) {
|
|
var lookup = FS.lookupPath(path);
|
|
var link = lookup.node;
|
|
if (!link.node_ops.readlink) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
return link.node_ops.readlink(link);
|
|
},stat:function (path, dontFollow) {
|
|
var lookup = FS.lookupPath(path, { follow: !dontFollow });
|
|
var node = lookup.node;
|
|
if (!node.node_ops.getattr) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
return node.node_ops.getattr(node);
|
|
},lstat:function (path) {
|
|
return FS.stat(path, true);
|
|
},chmod:function (path, mode, dontFollow) {
|
|
var node;
|
|
if (typeof path === 'string') {
|
|
var lookup = FS.lookupPath(path, { follow: !dontFollow });
|
|
node = lookup.node;
|
|
} else {
|
|
node = path;
|
|
}
|
|
if (!node.node_ops.setattr) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
node.node_ops.setattr(node, {
|
|
mode: (mode & 4095) | (node.mode & ~4095),
|
|
timestamp: Date.now()
|
|
});
|
|
},lchmod:function (path, mode) {
|
|
FS.chmod(path, mode, true);
|
|
},fchmod:function (fd, mode) {
|
|
var stream = FS.getStream(fd);
|
|
if (!stream) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
|
|
}
|
|
FS.chmod(stream.node, mode);
|
|
},chown:function (path, uid, gid, dontFollow) {
|
|
var node;
|
|
if (typeof path === 'string') {
|
|
var lookup = FS.lookupPath(path, { follow: !dontFollow });
|
|
node = lookup.node;
|
|
} else {
|
|
node = path;
|
|
}
|
|
if (!node.node_ops.setattr) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
node.node_ops.setattr(node, {
|
|
timestamp: Date.now()
|
|
// we ignore the uid / gid for now
|
|
});
|
|
},lchown:function (path, uid, gid) {
|
|
FS.chown(path, uid, gid, true);
|
|
},fchown:function (fd, uid, gid) {
|
|
var stream = FS.getStream(fd);
|
|
if (!stream) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
|
|
}
|
|
FS.chown(stream.node, uid, gid);
|
|
},truncate:function (path, len) {
|
|
if (len < 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
var node;
|
|
if (typeof path === 'string') {
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
|
node = lookup.node;
|
|
} else {
|
|
node = path;
|
|
}
|
|
if (!node.node_ops.setattr) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EPERM);
|
|
}
|
|
if (FS.isDir(node.mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
|
|
}
|
|
if (!FS.isFile(node.mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
var err = FS.nodePermissions(node, 'w');
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
node.node_ops.setattr(node, {
|
|
size: len,
|
|
timestamp: Date.now()
|
|
});
|
|
},ftruncate:function (fd, len) {
|
|
var stream = FS.getStream(fd);
|
|
if (!stream) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
|
|
}
|
|
if ((stream.flags & 2097155) === 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
FS.truncate(stream.node, len);
|
|
},utime:function (path, atime, mtime) {
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
|
var node = lookup.node;
|
|
node.node_ops.setattr(node, {
|
|
timestamp: Math.max(atime, mtime)
|
|
});
|
|
},open:function (path, flags, mode, fd_start, fd_end) {
|
|
flags = typeof flags === 'string' ? FS.modeStringToFlags(flags) : flags;
|
|
mode = typeof mode === 'undefined' ? 438 /* 0666 */ : mode;
|
|
if ((flags & 64)) {
|
|
mode = (mode & 4095) | 32768;
|
|
} else {
|
|
mode = 0;
|
|
}
|
|
var node;
|
|
if (typeof path === 'object') {
|
|
node = path;
|
|
} else {
|
|
path = PATH.normalize(path);
|
|
try {
|
|
var lookup = FS.lookupPath(path, {
|
|
follow: !(flags & 131072)
|
|
});
|
|
node = lookup.node;
|
|
} catch (e) {
|
|
// ignore
|
|
}
|
|
}
|
|
// perhaps we need to create the node
|
|
if ((flags & 64)) {
|
|
if (node) {
|
|
// if O_CREAT and O_EXCL are set, error out if the node already exists
|
|
if ((flags & 128)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EEXIST);
|
|
}
|
|
} else {
|
|
// node doesn't exist, try to create it
|
|
node = FS.mknod(path, mode, 0);
|
|
}
|
|
}
|
|
if (!node) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
|
|
}
|
|
// can't truncate a device
|
|
if (FS.isChrdev(node.mode)) {
|
|
flags &= ~512;
|
|
}
|
|
// check permissions
|
|
var err = FS.mayOpen(node, flags);
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
// do truncation if necessary
|
|
if ((flags & 512)) {
|
|
FS.truncate(node, 0);
|
|
}
|
|
// we've already handled these, don't pass down to the underlying vfs
|
|
flags &= ~(128 | 512);
|
|
|
|
// register the stream with the filesystem
|
|
var stream = FS.createStream({
|
|
node: node,
|
|
path: FS.getPath(node), // we want the absolute path to the node
|
|
flags: flags,
|
|
seekable: true,
|
|
position: 0,
|
|
stream_ops: node.stream_ops,
|
|
// used by the file family libc calls (fopen, fwrite, ferror, etc.)
|
|
ungotten: [],
|
|
error: false
|
|
}, fd_start, fd_end);
|
|
// call the new stream's open function
|
|
if (stream.stream_ops.open) {
|
|
stream.stream_ops.open(stream);
|
|
}
|
|
if (Module['logReadFiles'] && !(flags & 1)) {
|
|
if (!FS.readFiles) FS.readFiles = {};
|
|
if (!(path in FS.readFiles)) {
|
|
FS.readFiles[path] = 1;
|
|
Module['printErr']('read file: ' + path);
|
|
}
|
|
}
|
|
return stream;
|
|
},close:function (stream) {
|
|
try {
|
|
if (stream.stream_ops.close) {
|
|
stream.stream_ops.close(stream);
|
|
}
|
|
} catch (e) {
|
|
throw e;
|
|
} finally {
|
|
FS.closeStream(stream.fd);
|
|
}
|
|
},llseek:function (stream, offset, whence) {
|
|
if (!stream.seekable || !stream.stream_ops.llseek) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
|
|
}
|
|
return stream.stream_ops.llseek(stream, offset, whence);
|
|
},read:function (stream, buffer, offset, length, position) {
|
|
if (length < 0 || position < 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
if ((stream.flags & 2097155) === 1) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
|
|
}
|
|
if (FS.isDir(stream.node.mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
|
|
}
|
|
if (!stream.stream_ops.read) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
var seeking = true;
|
|
if (typeof position === 'undefined') {
|
|
position = stream.position;
|
|
seeking = false;
|
|
} else if (!stream.seekable) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
|
|
}
|
|
var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position);
|
|
if (!seeking) stream.position += bytesRead;
|
|
return bytesRead;
|
|
},write:function (stream, buffer, offset, length, position, canOwn) {
|
|
if (length < 0 || position < 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
if ((stream.flags & 2097155) === 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
|
|
}
|
|
if (FS.isDir(stream.node.mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
|
|
}
|
|
if (!stream.stream_ops.write) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
var seeking = true;
|
|
if (typeof position === 'undefined') {
|
|
position = stream.position;
|
|
seeking = false;
|
|
} else if (!stream.seekable) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
|
|
}
|
|
if (stream.flags & 1024) {
|
|
// seek to the end before writing in append mode
|
|
FS.llseek(stream, 0, 2);
|
|
}
|
|
var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
|
|
if (!seeking) stream.position += bytesWritten;
|
|
return bytesWritten;
|
|
},allocate:function (stream, offset, length) {
|
|
if (offset < 0 || length <= 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
if ((stream.flags & 2097155) === 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EBADF);
|
|
}
|
|
if (!FS.isFile(stream.node.mode) && !FS.isDir(node.mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
|
|
}
|
|
if (!stream.stream_ops.allocate) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP);
|
|
}
|
|
stream.stream_ops.allocate(stream, offset, length);
|
|
},mmap:function (stream, buffer, offset, length, position, prot, flags) {
|
|
// TODO if PROT is PROT_WRITE, make sure we have write access
|
|
if ((stream.flags & 2097155) === 1) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EACCES);
|
|
}
|
|
if (!stream.stream_ops.mmap) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
|
|
}
|
|
return stream.stream_ops.mmap(stream, buffer, offset, length, position, prot, flags);
|
|
},ioctl:function (stream, cmd, arg) {
|
|
if (!stream.stream_ops.ioctl) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTTY);
|
|
}
|
|
return stream.stream_ops.ioctl(stream, cmd, arg);
|
|
},readFile:function (path, opts) {
|
|
opts = opts || {};
|
|
opts.flags = opts.flags || 'r';
|
|
opts.encoding = opts.encoding || 'binary';
|
|
if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
|
|
throw new Error('Invalid encoding type "' + opts.encoding + '"');
|
|
}
|
|
var ret;
|
|
var stream = FS.open(path, opts.flags);
|
|
var stat = FS.stat(path);
|
|
var length = stat.size;
|
|
var buf = new Uint8Array(length);
|
|
FS.read(stream, buf, 0, length, 0);
|
|
if (opts.encoding === 'utf8') {
|
|
ret = '';
|
|
var utf8 = new Runtime.UTF8Processor();
|
|
for (var i = 0; i < length; i++) {
|
|
ret += utf8.processCChar(buf[i]);
|
|
}
|
|
} else if (opts.encoding === 'binary') {
|
|
ret = buf;
|
|
}
|
|
FS.close(stream);
|
|
return ret;
|
|
},writeFile:function (path, data, opts) {
|
|
opts = opts || {};
|
|
opts.flags = opts.flags || 'w';
|
|
opts.encoding = opts.encoding || 'utf8';
|
|
if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
|
|
throw new Error('Invalid encoding type "' + opts.encoding + '"');
|
|
}
|
|
var stream = FS.open(path, opts.flags, opts.mode);
|
|
if (opts.encoding === 'utf8') {
|
|
var utf8 = new Runtime.UTF8Processor();
|
|
var buf = new Uint8Array(utf8.processJSString(data));
|
|
FS.write(stream, buf, 0, buf.length, 0, opts.canOwn);
|
|
} else if (opts.encoding === 'binary') {
|
|
FS.write(stream, data, 0, data.length, 0, opts.canOwn);
|
|
}
|
|
FS.close(stream);
|
|
},cwd:function () {
|
|
return FS.currentPath;
|
|
},chdir:function (path) {
|
|
var lookup = FS.lookupPath(path, { follow: true });
|
|
if (!FS.isDir(lookup.node.mode)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
|
|
}
|
|
var err = FS.nodePermissions(lookup.node, 'x');
|
|
if (err) {
|
|
throw new FS.ErrnoError(err);
|
|
}
|
|
FS.currentPath = lookup.path;
|
|
},createDefaultDirectories:function () {
|
|
FS.mkdir('/tmp');
|
|
},createDefaultDevices:function () {
|
|
// create /dev
|
|
FS.mkdir('/dev');
|
|
// setup /dev/null
|
|
FS.registerDevice(FS.makedev(1, 3), {
|
|
read: function() { return 0; },
|
|
write: function() { return 0; }
|
|
});
|
|
FS.mkdev('/dev/null', FS.makedev(1, 3));
|
|
// setup /dev/tty and /dev/tty1
|
|
// stderr needs to print output using Module['printErr']
|
|
// so we register a second tty just for it.
|
|
TTY.register(FS.makedev(5, 0), TTY.default_tty_ops);
|
|
TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops);
|
|
FS.mkdev('/dev/tty', FS.makedev(5, 0));
|
|
FS.mkdev('/dev/tty1', FS.makedev(6, 0));
|
|
// we're not going to emulate the actual shm device,
|
|
// just create the tmp dirs that reside in it commonly
|
|
FS.mkdir('/dev/shm');
|
|
FS.mkdir('/dev/shm/tmp');
|
|
},createStandardStreams:function () {
|
|
// TODO deprecate the old functionality of a single
|
|
// input / output callback and that utilizes FS.createDevice
|
|
// and instead require a unique set of stream ops
|
|
|
|
// by default, we symlink the standard streams to the
|
|
// default tty devices. however, if the standard streams
|
|
// have been overwritten we create a unique device for
|
|
// them instead.
|
|
if (Module['stdin']) {
|
|
FS.createDevice('/dev', 'stdin', Module['stdin']);
|
|
} else {
|
|
FS.symlink('/dev/tty', '/dev/stdin');
|
|
}
|
|
if (Module['stdout']) {
|
|
FS.createDevice('/dev', 'stdout', null, Module['stdout']);
|
|
} else {
|
|
FS.symlink('/dev/tty', '/dev/stdout');
|
|
}
|
|
if (Module['stderr']) {
|
|
FS.createDevice('/dev', 'stderr', null, Module['stderr']);
|
|
} else {
|
|
FS.symlink('/dev/tty1', '/dev/stderr');
|
|
}
|
|
|
|
// open default streams for the stdin, stdout and stderr devices
|
|
var stdin = FS.open('/dev/stdin', 'r');
|
|
HEAP32[((_stdin)>>2)]=FS.getPtrForStream(stdin);
|
|
assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')');
|
|
|
|
var stdout = FS.open('/dev/stdout', 'w');
|
|
HEAP32[((_stdout)>>2)]=FS.getPtrForStream(stdout);
|
|
assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')');
|
|
|
|
var stderr = FS.open('/dev/stderr', 'w');
|
|
HEAP32[((_stderr)>>2)]=FS.getPtrForStream(stderr);
|
|
assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')');
|
|
},ensureErrnoError:function () {
|
|
if (FS.ErrnoError) return;
|
|
FS.ErrnoError = function ErrnoError(errno) {
|
|
this.errno = errno;
|
|
for (var key in ERRNO_CODES) {
|
|
if (ERRNO_CODES[key] === errno) {
|
|
this.code = key;
|
|
break;
|
|
}
|
|
}
|
|
this.message = ERRNO_MESSAGES[errno];
|
|
};
|
|
FS.ErrnoError.prototype = new Error();
|
|
FS.ErrnoError.prototype.constructor = FS.ErrnoError;
|
|
// Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info)
|
|
[ERRNO_CODES.ENOENT].forEach(function(code) {
|
|
FS.genericErrors[code] = new FS.ErrnoError(code);
|
|
FS.genericErrors[code].stack = '<generic error, no stack>';
|
|
});
|
|
},staticInit:function () {
|
|
FS.ensureErrnoError();
|
|
|
|
FS.nameTable = new Array(4096);
|
|
|
|
FS.mount(MEMFS, {}, '/');
|
|
|
|
FS.createDefaultDirectories();
|
|
FS.createDefaultDevices();
|
|
},init:function (input, output, error) {
|
|
assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)');
|
|
FS.init.initialized = true;
|
|
|
|
FS.ensureErrnoError();
|
|
|
|
// Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
|
|
Module['stdin'] = input || Module['stdin'];
|
|
Module['stdout'] = output || Module['stdout'];
|
|
Module['stderr'] = error || Module['stderr'];
|
|
|
|
FS.createStandardStreams();
|
|
},quit:function () {
|
|
FS.init.initialized = false;
|
|
for (var i = 0; i < FS.streams.length; i++) {
|
|
var stream = FS.streams[i];
|
|
if (!stream) {
|
|
continue;
|
|
}
|
|
FS.close(stream);
|
|
}
|
|
},getMode:function (canRead, canWrite) {
|
|
var mode = 0;
|
|
if (canRead) mode |= 292 | 73;
|
|
if (canWrite) mode |= 146;
|
|
return mode;
|
|
},joinPath:function (parts, forceRelative) {
|
|
var path = PATH.join.apply(null, parts);
|
|
if (forceRelative && path[0] == '/') path = path.substr(1);
|
|
return path;
|
|
},absolutePath:function (relative, base) {
|
|
return PATH.resolve(base, relative);
|
|
},standardizePath:function (path) {
|
|
return PATH.normalize(path);
|
|
},findObject:function (path, dontResolveLastLink) {
|
|
var ret = FS.analyzePath(path, dontResolveLastLink);
|
|
if (ret.exists) {
|
|
return ret.object;
|
|
} else {
|
|
___setErrNo(ret.error);
|
|
return null;
|
|
}
|
|
},analyzePath:function (path, dontResolveLastLink) {
|
|
// operate from within the context of the symlink's target
|
|
try {
|
|
var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
|
|
path = lookup.path;
|
|
} catch (e) {
|
|
}
|
|
var ret = {
|
|
isRoot: false, exists: false, error: 0, name: null, path: null, object: null,
|
|
parentExists: false, parentPath: null, parentObject: null
|
|
};
|
|
try {
|
|
var lookup = FS.lookupPath(path, { parent: true });
|
|
ret.parentExists = true;
|
|
ret.parentPath = lookup.path;
|
|
ret.parentObject = lookup.node;
|
|
ret.name = PATH.basename(path);
|
|
lookup = FS.lookupPath(path, { follow: !dontResolveLastLink });
|
|
ret.exists = true;
|
|
ret.path = lookup.path;
|
|
ret.object = lookup.node;
|
|
ret.name = lookup.node.name;
|
|
ret.isRoot = lookup.path === '/';
|
|
} catch (e) {
|
|
ret.error = e.errno;
|
|
};
|
|
return ret;
|
|
},createFolder:function (parent, name, canRead, canWrite) {
|
|
var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
|
|
var mode = FS.getMode(canRead, canWrite);
|
|
return FS.mkdir(path, mode);
|
|
},createPath:function (parent, path, canRead, canWrite) {
|
|
parent = typeof parent === 'string' ? parent : FS.getPath(parent);
|
|
var parts = path.split('/').reverse();
|
|
while (parts.length) {
|
|
var part = parts.pop();
|
|
if (!part) continue;
|
|
var current = PATH.join2(parent, part);
|
|
try {
|
|
FS.mkdir(current);
|
|
} catch (e) {
|
|
// ignore EEXIST
|
|
}
|
|
parent = current;
|
|
}
|
|
return current;
|
|
},createFile:function (parent, name, properties, canRead, canWrite) {
|
|
var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
|
|
var mode = FS.getMode(canRead, canWrite);
|
|
return FS.create(path, mode);
|
|
},createDataFile:function (parent, name, data, canRead, canWrite, canOwn) {
|
|
var path = name ? PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name) : parent;
|
|
var mode = FS.getMode(canRead, canWrite);
|
|
var node = FS.create(path, mode);
|
|
if (data) {
|
|
if (typeof data === 'string') {
|
|
var arr = new Array(data.length);
|
|
for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
|
|
data = arr;
|
|
}
|
|
// make sure we can write to the file
|
|
FS.chmod(node, mode | 146);
|
|
var stream = FS.open(node, 'w');
|
|
FS.write(stream, data, 0, data.length, 0, canOwn);
|
|
FS.close(stream);
|
|
FS.chmod(node, mode);
|
|
}
|
|
return node;
|
|
},createDevice:function (parent, name, input, output) {
|
|
var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
|
|
var mode = FS.getMode(!!input, !!output);
|
|
if (!FS.createDevice.major) FS.createDevice.major = 64;
|
|
var dev = FS.makedev(FS.createDevice.major++, 0);
|
|
// Create a fake device that a set of stream ops to emulate
|
|
// the old behavior.
|
|
FS.registerDevice(dev, {
|
|
open: function(stream) {
|
|
stream.seekable = false;
|
|
},
|
|
close: function(stream) {
|
|
// flush any pending line data
|
|
if (output && output.buffer && output.buffer.length) {
|
|
output(10);
|
|
}
|
|
},
|
|
read: function(stream, buffer, offset, length, pos /* ignored */) {
|
|
var bytesRead = 0;
|
|
for (var i = 0; i < length; i++) {
|
|
var result;
|
|
try {
|
|
result = input();
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EIO);
|
|
}
|
|
if (result === undefined && bytesRead === 0) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
|
|
}
|
|
if (result === null || result === undefined) break;
|
|
bytesRead++;
|
|
buffer[offset+i] = result;
|
|
}
|
|
if (bytesRead) {
|
|
stream.node.timestamp = Date.now();
|
|
}
|
|
return bytesRead;
|
|
},
|
|
write: function(stream, buffer, offset, length, pos) {
|
|
for (var i = 0; i < length; i++) {
|
|
try {
|
|
output(buffer[offset+i]);
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EIO);
|
|
}
|
|
}
|
|
if (length) {
|
|
stream.node.timestamp = Date.now();
|
|
}
|
|
return i;
|
|
}
|
|
});
|
|
return FS.mkdev(path, mode, dev);
|
|
},createLink:function (parent, name, target, canRead, canWrite) {
|
|
var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
|
|
return FS.symlink(target, path);
|
|
},forceLoadFile:function (obj) {
|
|
if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
|
|
var success = true;
|
|
if (typeof XMLHttpRequest !== 'undefined') {
|
|
throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.");
|
|
} else if (Module['read']) {
|
|
// Command-line.
|
|
try {
|
|
// WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as
|
|
// read() will try to parse UTF8.
|
|
obj.contents = intArrayFromString(Module['read'](obj.url), true);
|
|
} catch (e) {
|
|
success = false;
|
|
}
|
|
} else {
|
|
throw new Error('Cannot load without read() or XMLHttpRequest.');
|
|
}
|
|
if (!success) ___setErrNo(ERRNO_CODES.EIO);
|
|
return success;
|
|
},createLazyFile:function (parent, name, url, canRead, canWrite) {
|
|
// Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse.
|
|
function LazyUint8Array() {
|
|
this.lengthKnown = false;
|
|
this.chunks = []; // Loaded chunks. Index is the chunk number
|
|
}
|
|
LazyUint8Array.prototype.get = function LazyUint8Array_get(idx) {
|
|
if (idx > this.length-1 || idx < 0) {
|
|
return undefined;
|
|
}
|
|
var chunkOffset = idx % this.chunkSize;
|
|
var chunkNum = Math.floor(idx / this.chunkSize);
|
|
return this.getter(chunkNum)[chunkOffset];
|
|
}
|
|
LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) {
|
|
this.getter = getter;
|
|
}
|
|
LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLength() {
|
|
// Find length
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('HEAD', url, false);
|
|
xhr.send(null);
|
|
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
|
|
var datalength = Number(xhr.getResponseHeader("Content-length"));
|
|
var header;
|
|
var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes";
|
|
var chunkSize = 1024*1024; // Chunk size in bytes
|
|
|
|
if (!hasByteServing) chunkSize = datalength;
|
|
|
|
// Function to get a range from the remote URL.
|
|
var doXHR = (function(from, to) {
|
|
if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
|
|
if (to > datalength-1) throw new Error("only " + datalength + " bytes available! programmer error!");
|
|
|
|
// TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('GET', url, false);
|
|
if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
|
|
|
|
// Some hints to the browser that we want binary data.
|
|
if (typeof Uint8Array != 'undefined') xhr.responseType = 'arraybuffer';
|
|
if (xhr.overrideMimeType) {
|
|
xhr.overrideMimeType('text/plain; charset=x-user-defined');
|
|
}
|
|
|
|
xhr.send(null);
|
|
if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
|
|
if (xhr.response !== undefined) {
|
|
return new Uint8Array(xhr.response || []);
|
|
} else {
|
|
return intArrayFromString(xhr.responseText || '', true);
|
|
}
|
|
});
|
|
var lazyArray = this;
|
|
lazyArray.setDataGetter(function(chunkNum) {
|
|
var start = chunkNum * chunkSize;
|
|
var end = (chunkNum+1) * chunkSize - 1; // including this byte
|
|
end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block
|
|
if (typeof(lazyArray.chunks[chunkNum]) === "undefined") {
|
|
lazyArray.chunks[chunkNum] = doXHR(start, end);
|
|
}
|
|
if (typeof(lazyArray.chunks[chunkNum]) === "undefined") throw new Error("doXHR failed!");
|
|
return lazyArray.chunks[chunkNum];
|
|
});
|
|
|
|
this._length = datalength;
|
|
this._chunkSize = chunkSize;
|
|
this.lengthKnown = true;
|
|
}
|
|
if (typeof XMLHttpRequest !== 'undefined') {
|
|
if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc';
|
|
var lazyArray = new LazyUint8Array();
|
|
Object.defineProperty(lazyArray, "length", {
|
|
get: function() {
|
|
if(!this.lengthKnown) {
|
|
this.cacheLength();
|
|
}
|
|
return this._length;
|
|
}
|
|
});
|
|
Object.defineProperty(lazyArray, "chunkSize", {
|
|
get: function() {
|
|
if(!this.lengthKnown) {
|
|
this.cacheLength();
|
|
}
|
|
return this._chunkSize;
|
|
}
|
|
});
|
|
|
|
var properties = { isDevice: false, contents: lazyArray };
|
|
} else {
|
|
var properties = { isDevice: false, url: url };
|
|
}
|
|
|
|
var node = FS.createFile(parent, name, properties, canRead, canWrite);
|
|
// This is a total hack, but I want to get this lazy file code out of the
|
|
// core of MEMFS. If we want to keep this lazy file concept I feel it should
|
|
// be its own thin LAZYFS proxying calls to MEMFS.
|
|
if (properties.contents) {
|
|
node.contents = properties.contents;
|
|
} else if (properties.url) {
|
|
node.contents = null;
|
|
node.url = properties.url;
|
|
}
|
|
// override each stream op with one that tries to force load the lazy file first
|
|
var stream_ops = {};
|
|
var keys = Object.keys(node.stream_ops);
|
|
keys.forEach(function(key) {
|
|
var fn = node.stream_ops[key];
|
|
stream_ops[key] = function forceLoadLazyFile() {
|
|
if (!FS.forceLoadFile(node)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EIO);
|
|
}
|
|
return fn.apply(null, arguments);
|
|
};
|
|
});
|
|
// use a custom read function
|
|
stream_ops.read = function stream_ops_read(stream, buffer, offset, length, position) {
|
|
if (!FS.forceLoadFile(node)) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EIO);
|
|
}
|
|
var contents = stream.node.contents;
|
|
if (position >= contents.length)
|
|
return 0;
|
|
var size = Math.min(contents.length - position, length);
|
|
assert(size >= 0);
|
|
if (contents.slice) { // normal array
|
|
for (var i = 0; i < size; i++) {
|
|
buffer[offset + i] = contents[position + i];
|
|
}
|
|
} else {
|
|
for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR
|
|
buffer[offset + i] = contents.get(position + i);
|
|
}
|
|
}
|
|
return size;
|
|
};
|
|
node.stream_ops = stream_ops;
|
|
return node;
|
|
},createPreloadedFile:function (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn) {
|
|
Browser.init();
|
|
// TODO we should allow people to just pass in a complete filename instead
|
|
// of parent and name being that we just join them anyways
|
|
var fullname = name ? PATH.resolve(PATH.join2(parent, name)) : parent;
|
|
function processData(byteArray) {
|
|
function finish(byteArray) {
|
|
if (!dontCreateFile) {
|
|
FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
|
|
}
|
|
if (onload) onload();
|
|
removeRunDependency('cp ' + fullname);
|
|
}
|
|
var handled = false;
|
|
Module['preloadPlugins'].forEach(function(plugin) {
|
|
if (handled) return;
|
|
if (plugin['canHandle'](fullname)) {
|
|
plugin['handle'](byteArray, fullname, finish, function() {
|
|
if (onerror) onerror();
|
|
removeRunDependency('cp ' + fullname);
|
|
});
|
|
handled = true;
|
|
}
|
|
});
|
|
if (!handled) finish(byteArray);
|
|
}
|
|
addRunDependency('cp ' + fullname);
|
|
if (typeof url == 'string') {
|
|
Browser.asyncLoad(url, function(byteArray) {
|
|
processData(byteArray);
|
|
}, onerror);
|
|
} else {
|
|
processData(url);
|
|
}
|
|
},indexedDB:function () {
|
|
return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
|
|
},DB_NAME:function () {
|
|
return 'EM_FS_' + window.location.pathname;
|
|
},DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:function (paths, onload, onerror) {
|
|
onload = onload || function(){};
|
|
onerror = onerror || function(){};
|
|
var indexedDB = FS.indexedDB();
|
|
try {
|
|
var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
|
|
} catch (e) {
|
|
return onerror(e);
|
|
}
|
|
openRequest.onupgradeneeded = function openRequest_onupgradeneeded() {
|
|
console.log('creating db');
|
|
var db = openRequest.result;
|
|
db.createObjectStore(FS.DB_STORE_NAME);
|
|
};
|
|
openRequest.onsuccess = function openRequest_onsuccess() {
|
|
var db = openRequest.result;
|
|
var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite');
|
|
var files = transaction.objectStore(FS.DB_STORE_NAME);
|
|
var ok = 0, fail = 0, total = paths.length;
|
|
function finish() {
|
|
if (fail == 0) onload(); else onerror();
|
|
}
|
|
paths.forEach(function(path) {
|
|
var putRequest = files.put(FS.analyzePath(path).object.contents, path);
|
|
putRequest.onsuccess = function putRequest_onsuccess() { ok++; if (ok + fail == total) finish() };
|
|
putRequest.onerror = function putRequest_onerror() { fail++; if (ok + fail == total) finish() };
|
|
});
|
|
transaction.onerror = onerror;
|
|
};
|
|
openRequest.onerror = onerror;
|
|
},loadFilesFromDB:function (paths, onload, onerror) {
|
|
onload = onload || function(){};
|
|
onerror = onerror || function(){};
|
|
var indexedDB = FS.indexedDB();
|
|
try {
|
|
var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
|
|
} catch (e) {
|
|
return onerror(e);
|
|
}
|
|
openRequest.onupgradeneeded = onerror; // no database to load from
|
|
openRequest.onsuccess = function openRequest_onsuccess() {
|
|
var db = openRequest.result;
|
|
try {
|
|
var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly');
|
|
} catch(e) {
|
|
onerror(e);
|
|
return;
|
|
}
|
|
var files = transaction.objectStore(FS.DB_STORE_NAME);
|
|
var ok = 0, fail = 0, total = paths.length;
|
|
function finish() {
|
|
if (fail == 0) onload(); else onerror();
|
|
}
|
|
paths.forEach(function(path) {
|
|
var getRequest = files.get(path);
|
|
getRequest.onsuccess = function getRequest_onsuccess() {
|
|
if (FS.analyzePath(path).exists) {
|
|
FS.unlink(path);
|
|
}
|
|
FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true);
|
|
ok++;
|
|
if (ok + fail == total) finish();
|
|
};
|
|
getRequest.onerror = function getRequest_onerror() { fail++; if (ok + fail == total) finish() };
|
|
});
|
|
transaction.onerror = onerror;
|
|
};
|
|
openRequest.onerror = onerror;
|
|
}};var PATH={splitPath:function (filename) {
|
|
var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
|
|
return splitPathRe.exec(filename).slice(1);
|
|
},normalizeArray:function (parts, allowAboveRoot) {
|
|
// if the path tries to go above the root, `up` ends up > 0
|
|
var up = 0;
|
|
for (var i = parts.length - 1; i >= 0; i--) {
|
|
var last = parts[i];
|
|
if (last === '.') {
|
|
parts.splice(i, 1);
|
|
} else if (last === '..') {
|
|
parts.splice(i, 1);
|
|
up++;
|
|
} else if (up) {
|
|
parts.splice(i, 1);
|
|
up--;
|
|
}
|
|
}
|
|
// if the path is allowed to go above the root, restore leading ..s
|
|
if (allowAboveRoot) {
|
|
for (; up--; up) {
|
|
parts.unshift('..');
|
|
}
|
|
}
|
|
return parts;
|
|
},normalize:function (path) {
|
|
var isAbsolute = path.charAt(0) === '/',
|
|
trailingSlash = path.substr(-1) === '/';
|
|
// Normalize the path
|
|
path = PATH.normalizeArray(path.split('/').filter(function(p) {
|
|
return !!p;
|
|
}), !isAbsolute).join('/');
|
|
if (!path && !isAbsolute) {
|
|
path = '.';
|
|
}
|
|
if (path && trailingSlash) {
|
|
path += '/';
|
|
}
|
|
return (isAbsolute ? '/' : '') + path;
|
|
},dirname:function (path) {
|
|
var result = PATH.splitPath(path),
|
|
root = result[0],
|
|
dir = result[1];
|
|
if (!root && !dir) {
|
|
// No dirname whatsoever
|
|
return '.';
|
|
}
|
|
if (dir) {
|
|
// It has a dirname, strip trailing slash
|
|
dir = dir.substr(0, dir.length - 1);
|
|
}
|
|
return root + dir;
|
|
},basename:function (path) {
|
|
// EMSCRIPTEN return '/'' for '/', not an empty string
|
|
if (path === '/') return '/';
|
|
var lastSlash = path.lastIndexOf('/');
|
|
if (lastSlash === -1) return path;
|
|
return path.substr(lastSlash+1);
|
|
},extname:function (path) {
|
|
return PATH.splitPath(path)[3];
|
|
},join:function () {
|
|
var paths = Array.prototype.slice.call(arguments, 0);
|
|
return PATH.normalize(paths.join('/'));
|
|
},join2:function (l, r) {
|
|
return PATH.normalize(l + '/' + r);
|
|
},resolve:function () {
|
|
var resolvedPath = '',
|
|
resolvedAbsolute = false;
|
|
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
|
|
var path = (i >= 0) ? arguments[i] : FS.cwd();
|
|
// Skip empty and invalid entries
|
|
if (typeof path !== 'string') {
|
|
throw new TypeError('Arguments to path.resolve must be strings');
|
|
} else if (!path) {
|
|
continue;
|
|
}
|
|
resolvedPath = path + '/' + resolvedPath;
|
|
resolvedAbsolute = path.charAt(0) === '/';
|
|
}
|
|
// At this point the path should be resolved to a full absolute path, but
|
|
// handle relative paths to be safe (might happen when process.cwd() fails)
|
|
resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter(function(p) {
|
|
return !!p;
|
|
}), !resolvedAbsolute).join('/');
|
|
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
|
|
},relative:function (from, to) {
|
|
from = PATH.resolve(from).substr(1);
|
|
to = PATH.resolve(to).substr(1);
|
|
function trim(arr) {
|
|
var start = 0;
|
|
for (; start < arr.length; start++) {
|
|
if (arr[start] !== '') break;
|
|
}
|
|
var end = arr.length - 1;
|
|
for (; end >= 0; end--) {
|
|
if (arr[end] !== '') break;
|
|
}
|
|
if (start > end) return [];
|
|
return arr.slice(start, end - start + 1);
|
|
}
|
|
var fromParts = trim(from.split('/'));
|
|
var toParts = trim(to.split('/'));
|
|
var length = Math.min(fromParts.length, toParts.length);
|
|
var samePartsLength = length;
|
|
for (var i = 0; i < length; i++) {
|
|
if (fromParts[i] !== toParts[i]) {
|
|
samePartsLength = i;
|
|
break;
|
|
}
|
|
}
|
|
var outputParts = [];
|
|
for (var i = samePartsLength; i < fromParts.length; i++) {
|
|
outputParts.push('..');
|
|
}
|
|
outputParts = outputParts.concat(toParts.slice(samePartsLength));
|
|
return outputParts.join('/');
|
|
}};var Browser={mainLoop:{scheduler:null,method:"",shouldPause:false,paused:false,queue:[],pause:function () {
|
|
Browser.mainLoop.shouldPause = true;
|
|
},resume:function () {
|
|
if (Browser.mainLoop.paused) {
|
|
Browser.mainLoop.paused = false;
|
|
Browser.mainLoop.scheduler();
|
|
}
|
|
Browser.mainLoop.shouldPause = false;
|
|
},updateStatus:function () {
|
|
if (Module['setStatus']) {
|
|
var message = Module['statusMessage'] || 'Please wait...';
|
|
var remaining = Browser.mainLoop.remainingBlockers;
|
|
var expected = Browser.mainLoop.expectedBlockers;
|
|
if (remaining) {
|
|
if (remaining < expected) {
|
|
Module['setStatus'](message + ' (' + (expected - remaining) + '/' + expected + ')');
|
|
} else {
|
|
Module['setStatus'](message);
|
|
}
|
|
} else {
|
|
Module['setStatus']('');
|
|
}
|
|
}
|
|
}},isFullScreen:false,pointerLock:false,moduleContextCreatedCallbacks:[],workers:[],init:function () {
|
|
if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs to exist even in workers
|
|
|
|
if (Browser.initted || ENVIRONMENT_IS_WORKER) return;
|
|
Browser.initted = true;
|
|
|
|
try {
|
|
new Blob();
|
|
Browser.hasBlobConstructor = true;
|
|
} catch(e) {
|
|
Browser.hasBlobConstructor = false;
|
|
console.log("warning: no blob constructor, cannot create blobs with mimetypes");
|
|
}
|
|
Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuilder : (typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : (!Browser.hasBlobConstructor ? console.log("warning: no BlobBuilder") : null));
|
|
Browser.URLObject = typeof window != "undefined" ? (window.URL ? window.URL : window.webkitURL) : undefined;
|
|
if (!Module.noImageDecoding && typeof Browser.URLObject === 'undefined') {
|
|
console.log("warning: Browser does not support creating object URLs. Built-in browser image decoding will not be available.");
|
|
Module.noImageDecoding = true;
|
|
}
|
|
|
|
// Support for plugins that can process preloaded files. You can add more of these to
|
|
// your app by creating and appending to Module.preloadPlugins.
|
|
//
|
|
// Each plugin is asked if it can handle a file based on the file's name. If it can,
|
|
// it is given the file's raw data. When it is done, it calls a callback with the file's
|
|
// (possibly modified) data. For example, a plugin might decompress a file, or it
|
|
// might create some side data structure for use later (like an Image element, etc.).
|
|
|
|
var imagePlugin = {};
|
|
imagePlugin['canHandle'] = function imagePlugin_canHandle(name) {
|
|
return !Module.noImageDecoding && /\.(jpg|jpeg|png|bmp)$/i.test(name);
|
|
};
|
|
imagePlugin['handle'] = function imagePlugin_handle(byteArray, name, onload, onerror) {
|
|
var b = null;
|
|
if (Browser.hasBlobConstructor) {
|
|
try {
|
|
b = new Blob([byteArray], { type: Browser.getMimetype(name) });
|
|
if (b.size !== byteArray.length) { // Safari bug #118630
|
|
// Safari's Blob can only take an ArrayBuffer
|
|
b = new Blob([(new Uint8Array(byteArray)).buffer], { type: Browser.getMimetype(name) });
|
|
}
|
|
} catch(e) {
|
|
Runtime.warnOnce('Blob constructor present but fails: ' + e + '; falling back to blob builder');
|
|
}
|
|
}
|
|
if (!b) {
|
|
var bb = new Browser.BlobBuilder();
|
|
bb.append((new Uint8Array(byteArray)).buffer); // we need to pass a buffer, and must copy the array to get the right data range
|
|
b = bb.getBlob();
|
|
}
|
|
var url = Browser.URLObject.createObjectURL(b);
|
|
var img = new Image();
|
|
img.onload = function img_onload() {
|
|
assert(img.complete, 'Image ' + name + ' could not be decoded');
|
|
var canvas = document.createElement('canvas');
|
|
canvas.width = img.width;
|
|
canvas.height = img.height;
|
|
var ctx = canvas.getContext('2d');
|
|
ctx.drawImage(img, 0, 0);
|
|
Module["preloadedImages"][name] = canvas;
|
|
Browser.URLObject.revokeObjectURL(url);
|
|
if (onload) onload(byteArray);
|
|
};
|
|
img.onerror = function img_onerror(event) {
|
|
console.log('Image ' + url + ' could not be decoded');
|
|
if (onerror) onerror();
|
|
};
|
|
img.src = url;
|
|
};
|
|
Module['preloadPlugins'].push(imagePlugin);
|
|
|
|
var audioPlugin = {};
|
|
audioPlugin['canHandle'] = function audioPlugin_canHandle(name) {
|
|
return !Module.noAudioDecoding && name.substr(-4) in { '.ogg': 1, '.wav': 1, '.mp3': 1 };
|
|
};
|
|
audioPlugin['handle'] = function audioPlugin_handle(byteArray, name, onload, onerror) {
|
|
var done = false;
|
|
function finish(audio) {
|
|
if (done) return;
|
|
done = true;
|
|
Module["preloadedAudios"][name] = audio;
|
|
if (onload) onload(byteArray);
|
|
}
|
|
function fail() {
|
|
if (done) return;
|
|
done = true;
|
|
Module["preloadedAudios"][name] = new Audio(); // empty shim
|
|
if (onerror) onerror();
|
|
}
|
|
if (Browser.hasBlobConstructor) {
|
|
try {
|
|
var b = new Blob([byteArray], { type: Browser.getMimetype(name) });
|
|
} catch(e) {
|
|
return fail();
|
|
}
|
|
var url = Browser.URLObject.createObjectURL(b); // XXX we never revoke this!
|
|
var audio = new Audio();
|
|
audio.addEventListener('canplaythrough', function() { finish(audio) }, false); // use addEventListener due to chromium bug 124926
|
|
audio.onerror = function audio_onerror(event) {
|
|
if (done) return;
|
|
console.log('warning: browser could not fully decode audio ' + name + ', trying slower base64 approach');
|
|
function encode64(data) {
|
|
var BASE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
|
|
var PAD = '=';
|
|
var ret = '';
|
|
var leftchar = 0;
|
|
var leftbits = 0;
|
|
for (var i = 0; i < data.length; i++) {
|
|
leftchar = (leftchar << 8) | data[i];
|
|
leftbits += 8;
|
|
while (leftbits >= 6) {
|
|
var curr = (leftchar >> (leftbits-6)) & 0x3f;
|
|
leftbits -= 6;
|
|
ret += BASE[curr];
|
|
}
|
|
}
|
|
if (leftbits == 2) {
|
|
ret += BASE[(leftchar&3) << 4];
|
|
ret += PAD + PAD;
|
|
} else if (leftbits == 4) {
|
|
ret += BASE[(leftchar&0xf) << 2];
|
|
ret += PAD;
|
|
}
|
|
return ret;
|
|
}
|
|
audio.src = 'data:audio/x-' + name.substr(-3) + ';base64,' + encode64(byteArray);
|
|
finish(audio); // we don't wait for confirmation this worked - but it's worth trying
|
|
};
|
|
audio.src = url;
|
|
// workaround for chrome bug 124926 - we do not always get oncanplaythrough or onerror
|
|
Browser.safeSetTimeout(function() {
|
|
finish(audio); // try to use it even though it is not necessarily ready to play
|
|
}, 10000);
|
|
} else {
|
|
return fail();
|
|
}
|
|
};
|
|
Module['preloadPlugins'].push(audioPlugin);
|
|
|
|
// Canvas event setup
|
|
|
|
var canvas = Module['canvas'];
|
|
|
|
// forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module
|
|
// Module['forcedAspectRatio'] = 4 / 3;
|
|
|
|
canvas.requestPointerLock = canvas['requestPointerLock'] ||
|
|
canvas['mozRequestPointerLock'] ||
|
|
canvas['webkitRequestPointerLock'] ||
|
|
canvas['msRequestPointerLock'] ||
|
|
function(){};
|
|
canvas.exitPointerLock = document['exitPointerLock'] ||
|
|
document['mozExitPointerLock'] ||
|
|
document['webkitExitPointerLock'] ||
|
|
document['msExitPointerLock'] ||
|
|
function(){}; // no-op if function does not exist
|
|
canvas.exitPointerLock = canvas.exitPointerLock.bind(document);
|
|
|
|
function pointerLockChange() {
|
|
Browser.pointerLock = document['pointerLockElement'] === canvas ||
|
|
document['mozPointerLockElement'] === canvas ||
|
|
document['webkitPointerLockElement'] === canvas ||
|
|
document['msPointerLockElement'] === canvas;
|
|
}
|
|
|
|
document.addEventListener('pointerlockchange', pointerLockChange, false);
|
|
document.addEventListener('mozpointerlockchange', pointerLockChange, false);
|
|
document.addEventListener('webkitpointerlockchange', pointerLockChange, false);
|
|
document.addEventListener('mspointerlockchange', pointerLockChange, false);
|
|
|
|
if (Module['elementPointerLock']) {
|
|
canvas.addEventListener("click", function(ev) {
|
|
if (!Browser.pointerLock && canvas.requestPointerLock) {
|
|
canvas.requestPointerLock();
|
|
ev.preventDefault();
|
|
}
|
|
}, false);
|
|
}
|
|
},createContext:function (canvas, useWebGL, setInModule, webGLContextAttributes) {
|
|
var ctx;
|
|
var errorInfo = '?';
|
|
function onContextCreationError(event) {
|
|
errorInfo = event.statusMessage || errorInfo;
|
|
}
|
|
try {
|
|
if (useWebGL) {
|
|
var contextAttributes = {
|
|
antialias: false,
|
|
alpha: false
|
|
};
|
|
|
|
if (webGLContextAttributes) {
|
|
for (var attribute in webGLContextAttributes) {
|
|
contextAttributes[attribute] = webGLContextAttributes[attribute];
|
|
}
|
|
}
|
|
|
|
|
|
canvas.addEventListener('webglcontextcreationerror', onContextCreationError, false);
|
|
try {
|
|
['experimental-webgl', 'webgl'].some(function(webglId) {
|
|
return ctx = canvas.getContext(webglId, contextAttributes);
|
|
});
|
|
} finally {
|
|
canvas.removeEventListener('webglcontextcreationerror', onContextCreationError, false);
|
|
}
|
|
} else {
|
|
ctx = canvas.getContext('2d');
|
|
}
|
|
if (!ctx) throw ':(';
|
|
} catch (e) {
|
|
Module.print('Could not create canvas: ' + [errorInfo, e]);
|
|
return null;
|
|
}
|
|
if (useWebGL) {
|
|
// Set the background of the WebGL canvas to black
|
|
canvas.style.backgroundColor = "black";
|
|
|
|
// Warn on context loss
|
|
canvas.addEventListener('webglcontextlost', function(event) {
|
|
alert('WebGL context lost. You will need to reload the page.');
|
|
}, false);
|
|
}
|
|
if (setInModule) {
|
|
GLctx = Module.ctx = ctx;
|
|
Module.useWebGL = useWebGL;
|
|
Browser.moduleContextCreatedCallbacks.forEach(function(callback) { callback() });
|
|
Browser.init();
|
|
}
|
|
return ctx;
|
|
},destroyContext:function (canvas, useWebGL, setInModule) {},fullScreenHandlersInstalled:false,lockPointer:undefined,resizeCanvas:undefined,requestFullScreen:function (lockPointer, resizeCanvas) {
|
|
Browser.lockPointer = lockPointer;
|
|
Browser.resizeCanvas = resizeCanvas;
|
|
if (typeof Browser.lockPointer === 'undefined') Browser.lockPointer = true;
|
|
if (typeof Browser.resizeCanvas === 'undefined') Browser.resizeCanvas = false;
|
|
|
|
var canvas = Module['canvas'];
|
|
function fullScreenChange() {
|
|
Browser.isFullScreen = false;
|
|
var canvasContainer = canvas.parentNode;
|
|
if ((document['webkitFullScreenElement'] || document['webkitFullscreenElement'] ||
|
|
document['mozFullScreenElement'] || document['mozFullscreenElement'] ||
|
|
document['fullScreenElement'] || document['fullscreenElement'] ||
|
|
document['msFullScreenElement'] || document['msFullscreenElement'] ||
|
|
document['webkitCurrentFullScreenElement']) === canvasContainer) {
|
|
canvas.cancelFullScreen = document['cancelFullScreen'] ||
|
|
document['mozCancelFullScreen'] ||
|
|
document['webkitCancelFullScreen'] ||
|
|
document['msExitFullscreen'] ||
|
|
document['exitFullscreen'] ||
|
|
function() {};
|
|
canvas.cancelFullScreen = canvas.cancelFullScreen.bind(document);
|
|
if (Browser.lockPointer) canvas.requestPointerLock();
|
|
Browser.isFullScreen = true;
|
|
if (Browser.resizeCanvas) Browser.setFullScreenCanvasSize();
|
|
} else {
|
|
|
|
// remove the full screen specific parent of the canvas again to restore the HTML structure from before going full screen
|
|
canvasContainer.parentNode.insertBefore(canvas, canvasContainer);
|
|
canvasContainer.parentNode.removeChild(canvasContainer);
|
|
|
|
if (Browser.resizeCanvas) Browser.setWindowedCanvasSize();
|
|
}
|
|
if (Module['onFullScreen']) Module['onFullScreen'](Browser.isFullScreen);
|
|
Browser.updateCanvasDimensions(canvas);
|
|
}
|
|
|
|
if (!Browser.fullScreenHandlersInstalled) {
|
|
Browser.fullScreenHandlersInstalled = true;
|
|
document.addEventListener('fullscreenchange', fullScreenChange, false);
|
|
document.addEventListener('mozfullscreenchange', fullScreenChange, false);
|
|
document.addEventListener('webkitfullscreenchange', fullScreenChange, false);
|
|
document.addEventListener('MSFullscreenChange', fullScreenChange, false);
|
|
}
|
|
|
|
// create a new parent to ensure the canvas has no siblings. this allows browsers to optimize full screen performance when its parent is the full screen root
|
|
var canvasContainer = document.createElement("div");
|
|
canvas.parentNode.insertBefore(canvasContainer, canvas);
|
|
canvasContainer.appendChild(canvas);
|
|
|
|
// use parent of canvas as full screen root to allow aspect ratio correction (Firefox stretches the root to screen size)
|
|
canvasContainer.requestFullScreen = canvasContainer['requestFullScreen'] ||
|
|
canvasContainer['mozRequestFullScreen'] ||
|
|
canvasContainer['msRequestFullscreen'] ||
|
|
(canvasContainer['webkitRequestFullScreen'] ? function() { canvasContainer['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null);
|
|
canvasContainer.requestFullScreen();
|
|
},requestAnimationFrame:function requestAnimationFrame(func) {
|
|
if (typeof window === 'undefined') { // Provide fallback to setTimeout if window is undefined (e.g. in Node.js)
|
|
setTimeout(func, 1000/60);
|
|
} else {
|
|
if (!window.requestAnimationFrame) {
|
|
window.requestAnimationFrame = window['requestAnimationFrame'] ||
|
|
window['mozRequestAnimationFrame'] ||
|
|
window['webkitRequestAnimationFrame'] ||
|
|
window['msRequestAnimationFrame'] ||
|
|
window['oRequestAnimationFrame'] ||
|
|
window['setTimeout'];
|
|
}
|
|
window.requestAnimationFrame(func);
|
|
}
|
|
},safeCallback:function (func) {
|
|
return function() {
|
|
if (!ABORT) return func.apply(null, arguments);
|
|
};
|
|
},safeRequestAnimationFrame:function (func) {
|
|
return Browser.requestAnimationFrame(function() {
|
|
if (!ABORT) func();
|
|
});
|
|
},safeSetTimeout:function (func, timeout) {
|
|
return setTimeout(function() {
|
|
if (!ABORT) func();
|
|
}, timeout);
|
|
},safeSetInterval:function (func, timeout) {
|
|
return setInterval(function() {
|
|
if (!ABORT) func();
|
|
}, timeout);
|
|
},getMimetype:function (name) {
|
|
return {
|
|
'jpg': 'image/jpeg',
|
|
'jpeg': 'image/jpeg',
|
|
'png': 'image/png',
|
|
'bmp': 'image/bmp',
|
|
'ogg': 'audio/ogg',
|
|
'wav': 'audio/wav',
|
|
'mp3': 'audio/mpeg'
|
|
}[name.substr(name.lastIndexOf('.')+1)];
|
|
},getUserMedia:function (func) {
|
|
if(!window.getUserMedia) {
|
|
window.getUserMedia = navigator['getUserMedia'] ||
|
|
navigator['mozGetUserMedia'];
|
|
}
|
|
window.getUserMedia(func);
|
|
},getMovementX:function (event) {
|
|
return event['movementX'] ||
|
|
event['mozMovementX'] ||
|
|
event['webkitMovementX'] ||
|
|
0;
|
|
},getMovementY:function (event) {
|
|
return event['movementY'] ||
|
|
event['mozMovementY'] ||
|
|
event['webkitMovementY'] ||
|
|
0;
|
|
},getMouseWheelDelta:function (event) {
|
|
return Math.max(-1, Math.min(1, event.type === 'DOMMouseScroll' ? event.detail : -event.wheelDelta));
|
|
},mouseX:0,mouseY:0,mouseMovementX:0,mouseMovementY:0,calculateMouseEvent:function (event) { // event should be mousemove, mousedown or mouseup
|
|
if (Browser.pointerLock) {
|
|
// When the pointer is locked, calculate the coordinates
|
|
// based on the movement of the mouse.
|
|
// Workaround for Firefox bug 764498
|
|
if (event.type != 'mousemove' &&
|
|
('mozMovementX' in event)) {
|
|
Browser.mouseMovementX = Browser.mouseMovementY = 0;
|
|
} else {
|
|
Browser.mouseMovementX = Browser.getMovementX(event);
|
|
Browser.mouseMovementY = Browser.getMovementY(event);
|
|
}
|
|
|
|
// check if SDL is available
|
|
if (typeof SDL != "undefined") {
|
|
Browser.mouseX = SDL.mouseX + Browser.mouseMovementX;
|
|
Browser.mouseY = SDL.mouseY + Browser.mouseMovementY;
|
|
} else {
|
|
// just add the mouse delta to the current absolut mouse position
|
|
// FIXME: ideally this should be clamped against the canvas size and zero
|
|
Browser.mouseX += Browser.mouseMovementX;
|
|
Browser.mouseY += Browser.mouseMovementY;
|
|
}
|
|
} else {
|
|
// Otherwise, calculate the movement based on the changes
|
|
// in the coordinates.
|
|
var rect = Module["canvas"].getBoundingClientRect();
|
|
var x, y;
|
|
|
|
// Neither .scrollX or .pageXOffset are defined in a spec, but
|
|
// we prefer .scrollX because it is currently in a spec draft.
|
|
// (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/)
|
|
var scrollX = ((typeof window.scrollX !== 'undefined') ? window.scrollX : window.pageXOffset);
|
|
var scrollY = ((typeof window.scrollY !== 'undefined') ? window.scrollY : window.pageYOffset);
|
|
if (event.type == 'touchstart' ||
|
|
event.type == 'touchend' ||
|
|
event.type == 'touchmove') {
|
|
var t = event.touches.item(0);
|
|
if (t) {
|
|
x = t.pageX - (scrollX + rect.left);
|
|
y = t.pageY - (scrollY + rect.top);
|
|
} else {
|
|
return;
|
|
}
|
|
} else {
|
|
x = event.pageX - (scrollX + rect.left);
|
|
y = event.pageY - (scrollY + rect.top);
|
|
}
|
|
|
|
// the canvas might be CSS-scaled compared to its backbuffer;
|
|
// SDL-using content will want mouse coordinates in terms
|
|
// of backbuffer units.
|
|
var cw = Module["canvas"].width;
|
|
var ch = Module["canvas"].height;
|
|
x = x * (cw / rect.width);
|
|
y = y * (ch / rect.height);
|
|
|
|
Browser.mouseMovementX = x - Browser.mouseX;
|
|
Browser.mouseMovementY = y - Browser.mouseY;
|
|
Browser.mouseX = x;
|
|
Browser.mouseY = y;
|
|
}
|
|
},xhrLoad:function (url, onload, onerror) {
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open('GET', url, true);
|
|
xhr.responseType = 'arraybuffer';
|
|
xhr.onload = function xhr_onload() {
|
|
if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
|
|
onload(xhr.response);
|
|
} else {
|
|
onerror();
|
|
}
|
|
};
|
|
xhr.onerror = onerror;
|
|
xhr.send(null);
|
|
},asyncLoad:function (url, onload, onerror, noRunDep) {
|
|
Browser.xhrLoad(url, function(arrayBuffer) {
|
|
assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
|
|
onload(new Uint8Array(arrayBuffer));
|
|
if (!noRunDep) removeRunDependency('al ' + url);
|
|
}, function(event) {
|
|
if (onerror) {
|
|
onerror();
|
|
} else {
|
|
throw 'Loading data file "' + url + '" failed.';
|
|
}
|
|
});
|
|
if (!noRunDep) addRunDependency('al ' + url);
|
|
},resizeListeners:[],updateResizeListeners:function () {
|
|
var canvas = Module['canvas'];
|
|
Browser.resizeListeners.forEach(function(listener) {
|
|
listener(canvas.width, canvas.height);
|
|
});
|
|
},setCanvasSize:function (width, height, noUpdates) {
|
|
var canvas = Module['canvas'];
|
|
Browser.updateCanvasDimensions(canvas, width, height);
|
|
if (!noUpdates) Browser.updateResizeListeners();
|
|
},windowedWidth:0,windowedHeight:0,setFullScreenCanvasSize:function () {
|
|
// check if SDL is available
|
|
if (typeof SDL != "undefined") {
|
|
var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
|
|
flags = flags | 0x00800000; // set SDL_FULLSCREEN flag
|
|
HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
|
|
}
|
|
Browser.updateResizeListeners();
|
|
},setWindowedCanvasSize:function () {
|
|
// check if SDL is available
|
|
if (typeof SDL != "undefined") {
|
|
var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
|
|
flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag
|
|
HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
|
|
}
|
|
Browser.updateResizeListeners();
|
|
},updateCanvasDimensions:function (canvas, wNative, hNative) {
|
|
if (wNative && hNative) {
|
|
canvas.widthNative = wNative;
|
|
canvas.heightNative = hNative;
|
|
} else {
|
|
wNative = canvas.widthNative;
|
|
hNative = canvas.heightNative;
|
|
}
|
|
var w = wNative;
|
|
var h = hNative;
|
|
if (Module['forcedAspectRatio'] && Module['forcedAspectRatio'] > 0) {
|
|
if (w/h < Module['forcedAspectRatio']) {
|
|
w = Math.round(h * Module['forcedAspectRatio']);
|
|
} else {
|
|
h = Math.round(w / Module['forcedAspectRatio']);
|
|
}
|
|
}
|
|
if (((document['webkitFullScreenElement'] || document['webkitFullscreenElement'] ||
|
|
document['mozFullScreenElement'] || document['mozFullscreenElement'] ||
|
|
document['fullScreenElement'] || document['fullscreenElement'] ||
|
|
document['msFullScreenElement'] || document['msFullscreenElement'] ||
|
|
document['webkitCurrentFullScreenElement']) === canvas.parentNode) && (typeof screen != 'undefined')) {
|
|
var factor = Math.min(screen.width / w, screen.height / h);
|
|
w = Math.round(w * factor);
|
|
h = Math.round(h * factor);
|
|
}
|
|
if (Browser.resizeCanvas) {
|
|
if (canvas.width != w) canvas.width = w;
|
|
if (canvas.height != h) canvas.height = h;
|
|
if (typeof canvas.style != 'undefined') {
|
|
canvas.style.removeProperty( "width");
|
|
canvas.style.removeProperty("height");
|
|
}
|
|
} else {
|
|
if (canvas.width != wNative) canvas.width = wNative;
|
|
if (canvas.height != hNative) canvas.height = hNative;
|
|
if (typeof canvas.style != 'undefined') {
|
|
if (w != wNative || h != hNative) {
|
|
canvas.style.setProperty( "width", w + "px", "important");
|
|
canvas.style.setProperty("height", h + "px", "important");
|
|
} else {
|
|
canvas.style.removeProperty( "width");
|
|
canvas.style.removeProperty("height");
|
|
}
|
|
}
|
|
}
|
|
}};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
function _mkport() { throw 'TODO' }var SOCKFS={mount:function (mount) {
|
|
return FS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
|
|
},createSocket:function (family, type, protocol) {
|
|
var streaming = type == 1;
|
|
if (protocol) {
|
|
assert(streaming == (protocol == 6)); // if SOCK_STREAM, must be tcp
|
|
}
|
|
|
|
// create our internal socket structure
|
|
var sock = {
|
|
family: family,
|
|
type: type,
|
|
protocol: protocol,
|
|
server: null,
|
|
peers: {},
|
|
pending: [],
|
|
recv_queue: [],
|
|
sock_ops: SOCKFS.websocket_sock_ops
|
|
};
|
|
|
|
// create the filesystem node to store the socket structure
|
|
var name = SOCKFS.nextname();
|
|
var node = FS.createNode(SOCKFS.root, name, 49152, 0);
|
|
node.sock = sock;
|
|
|
|
// and the wrapping stream that enables library functions such
|
|
// as read and write to indirectly interact with the socket
|
|
var stream = FS.createStream({
|
|
path: name,
|
|
node: node,
|
|
flags: FS.modeStringToFlags('r+'),
|
|
seekable: false,
|
|
stream_ops: SOCKFS.stream_ops
|
|
});
|
|
|
|
// map the new stream to the socket structure (sockets have a 1:1
|
|
// relationship with a stream)
|
|
sock.stream = stream;
|
|
|
|
return sock;
|
|
},getSocket:function (fd) {
|
|
var stream = FS.getStream(fd);
|
|
if (!stream || !FS.isSocket(stream.node.mode)) {
|
|
return null;
|
|
}
|
|
return stream.node.sock;
|
|
},stream_ops:{poll:function (stream) {
|
|
var sock = stream.node.sock;
|
|
return sock.sock_ops.poll(sock);
|
|
},ioctl:function (stream, request, varargs) {
|
|
var sock = stream.node.sock;
|
|
return sock.sock_ops.ioctl(sock, request, varargs);
|
|
},read:function (stream, buffer, offset, length, position /* ignored */) {
|
|
var sock = stream.node.sock;
|
|
var msg = sock.sock_ops.recvmsg(sock, length);
|
|
if (!msg) {
|
|
// socket is closed
|
|
return 0;
|
|
}
|
|
buffer.set(msg.buffer, offset);
|
|
return msg.buffer.length;
|
|
},write:function (stream, buffer, offset, length, position /* ignored */) {
|
|
var sock = stream.node.sock;
|
|
return sock.sock_ops.sendmsg(sock, buffer, offset, length);
|
|
},close:function (stream) {
|
|
var sock = stream.node.sock;
|
|
sock.sock_ops.close(sock);
|
|
}},nextname:function () {
|
|
if (!SOCKFS.nextname.current) {
|
|
SOCKFS.nextname.current = 0;
|
|
}
|
|
return 'socket[' + (SOCKFS.nextname.current++) + ']';
|
|
},websocket_sock_ops:{createPeer:function (sock, addr, port) {
|
|
var ws;
|
|
|
|
if (typeof addr === 'object') {
|
|
ws = addr;
|
|
addr = null;
|
|
port = null;
|
|
}
|
|
|
|
if (ws) {
|
|
// for sockets that've already connected (e.g. we're the server)
|
|
// we can inspect the _socket property for the address
|
|
if (ws._socket) {
|
|
addr = ws._socket.remoteAddress;
|
|
port = ws._socket.remotePort;
|
|
}
|
|
// if we're just now initializing a connection to the remote,
|
|
// inspect the url property
|
|
else {
|
|
var result = /ws[s]?:\/\/([^:]+):(\d+)/.exec(ws.url);
|
|
if (!result) {
|
|
throw new Error('WebSocket URL must be in the format ws(s)://address:port');
|
|
}
|
|
addr = result[1];
|
|
port = parseInt(result[2], 10);
|
|
}
|
|
} else {
|
|
// create the actual websocket object and connect
|
|
try {
|
|
// runtimeConfig gets set to true if WebSocket runtime configuration is available.
|
|
var runtimeConfig = (Module['websocket'] && ('object' === typeof Module['websocket']));
|
|
|
|
// The default value is 'ws://' the replace is needed because the compiler replaces "//" comments with '#'
|
|
// comments without checking context, so we'd end up with ws:#, the replace swaps the "#" for "//" again.
|
|
var url = 'ws:#'.replace('#', '//');
|
|
|
|
if (runtimeConfig) {
|
|
if ('string' === typeof Module['websocket']['url']) {
|
|
url = Module['websocket']['url']; // Fetch runtime WebSocket URL config.
|
|
}
|
|
}
|
|
|
|
if (url === 'ws://' || url === 'wss://') { // Is the supplied URL config just a prefix, if so complete it.
|
|
url = url + addr + ':' + port;
|
|
}
|
|
|
|
// Make the WebSocket subprotocol (Sec-WebSocket-Protocol) default to binary if no configuration is set.
|
|
var subProtocols = 'binary'; // The default value is 'binary'
|
|
|
|
if (runtimeConfig) {
|
|
if ('string' === typeof Module['websocket']['subprotocol']) {
|
|
subProtocols = Module['websocket']['subprotocol']; // Fetch runtime WebSocket subprotocol config.
|
|
}
|
|
}
|
|
|
|
// The regex trims the string (removes spaces at the beginning and end, then splits the string by
|
|
// <any space>,<any space> into an Array. Whitespace removal is important for Websockify and ws.
|
|
subProtocols = subProtocols.replace(/^ +| +$/g,"").split(/ *, */);
|
|
|
|
// The node ws library API for specifying optional subprotocol is slightly different than the browser's.
|
|
var opts = ENVIRONMENT_IS_NODE ? {'protocol': subProtocols.toString()} : subProtocols;
|
|
|
|
// If node we use the ws library.
|
|
var WebSocket = ENVIRONMENT_IS_NODE ? require('ws') : window['WebSocket'];
|
|
ws = new WebSocket(url, opts);
|
|
ws.binaryType = 'arraybuffer';
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EHOSTUNREACH);
|
|
}
|
|
}
|
|
|
|
|
|
var peer = {
|
|
addr: addr,
|
|
port: port,
|
|
socket: ws,
|
|
dgram_send_queue: []
|
|
};
|
|
|
|
SOCKFS.websocket_sock_ops.addPeer(sock, peer);
|
|
SOCKFS.websocket_sock_ops.handlePeerEvents(sock, peer);
|
|
|
|
// if this is a bound dgram socket, send the port number first to allow
|
|
// us to override the ephemeral port reported to us by remotePort on the
|
|
// remote end.
|
|
if (sock.type === 2 && typeof sock.sport !== 'undefined') {
|
|
peer.dgram_send_queue.push(new Uint8Array([
|
|
255, 255, 255, 255,
|
|
'p'.charCodeAt(0), 'o'.charCodeAt(0), 'r'.charCodeAt(0), 't'.charCodeAt(0),
|
|
((sock.sport & 0xff00) >> 8) , (sock.sport & 0xff)
|
|
]));
|
|
}
|
|
|
|
return peer;
|
|
},getPeer:function (sock, addr, port) {
|
|
return sock.peers[addr + ':' + port];
|
|
},addPeer:function (sock, peer) {
|
|
sock.peers[peer.addr + ':' + peer.port] = peer;
|
|
},removePeer:function (sock, peer) {
|
|
delete sock.peers[peer.addr + ':' + peer.port];
|
|
},handlePeerEvents:function (sock, peer) {
|
|
var first = true;
|
|
|
|
var handleOpen = function () {
|
|
try {
|
|
var queued = peer.dgram_send_queue.shift();
|
|
while (queued) {
|
|
peer.socket.send(queued);
|
|
queued = peer.dgram_send_queue.shift();
|
|
}
|
|
} catch (e) {
|
|
// not much we can do here in the way of proper error handling as we've already
|
|
// lied and said this data was sent. shut it down.
|
|
peer.socket.close();
|
|
}
|
|
};
|
|
|
|
function handleMessage(data) {
|
|
assert(typeof data !== 'string' && data.byteLength !== undefined); // must receive an ArrayBuffer
|
|
data = new Uint8Array(data); // make a typed array view on the array buffer
|
|
|
|
|
|
// if this is the port message, override the peer's port with it
|
|
var wasfirst = first;
|
|
first = false;
|
|
if (wasfirst &&
|
|
data.length === 10 &&
|
|
data[0] === 255 && data[1] === 255 && data[2] === 255 && data[3] === 255 &&
|
|
data[4] === 'p'.charCodeAt(0) && data[5] === 'o'.charCodeAt(0) && data[6] === 'r'.charCodeAt(0) && data[7] === 't'.charCodeAt(0)) {
|
|
// update the peer's port and it's key in the peer map
|
|
var newport = ((data[8] << 8) | data[9]);
|
|
SOCKFS.websocket_sock_ops.removePeer(sock, peer);
|
|
peer.port = newport;
|
|
SOCKFS.websocket_sock_ops.addPeer(sock, peer);
|
|
return;
|
|
}
|
|
|
|
sock.recv_queue.push({ addr: peer.addr, port: peer.port, data: data });
|
|
};
|
|
|
|
if (ENVIRONMENT_IS_NODE) {
|
|
peer.socket.on('open', handleOpen);
|
|
peer.socket.on('message', function(data, flags) {
|
|
if (!flags.binary) {
|
|
return;
|
|
}
|
|
handleMessage((new Uint8Array(data)).buffer); // copy from node Buffer -> ArrayBuffer
|
|
});
|
|
peer.socket.on('error', function() {
|
|
// don't throw
|
|
});
|
|
} else {
|
|
peer.socket.onopen = handleOpen;
|
|
peer.socket.onmessage = function peer_socket_onmessage(event) {
|
|
handleMessage(event.data);
|
|
};
|
|
}
|
|
},poll:function (sock) {
|
|
if (sock.type === 1 && sock.server) {
|
|
// listen sockets should only say they're available for reading
|
|
// if there are pending clients.
|
|
return sock.pending.length ? (64 | 1) : 0;
|
|
}
|
|
|
|
var mask = 0;
|
|
var dest = sock.type === 1 ? // we only care about the socket state for connection-based sockets
|
|
SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport) :
|
|
null;
|
|
|
|
if (sock.recv_queue.length ||
|
|
!dest || // connection-less sockets are always ready to read
|
|
(dest && dest.socket.readyState === dest.socket.CLOSING) ||
|
|
(dest && dest.socket.readyState === dest.socket.CLOSED)) { // let recv return 0 once closed
|
|
mask |= (64 | 1);
|
|
}
|
|
|
|
if (!dest || // connection-less sockets are always ready to write
|
|
(dest && dest.socket.readyState === dest.socket.OPEN)) {
|
|
mask |= 4;
|
|
}
|
|
|
|
if ((dest && dest.socket.readyState === dest.socket.CLOSING) ||
|
|
(dest && dest.socket.readyState === dest.socket.CLOSED)) {
|
|
mask |= 16;
|
|
}
|
|
|
|
return mask;
|
|
},ioctl:function (sock, request, arg) {
|
|
switch (request) {
|
|
case 21531:
|
|
var bytes = 0;
|
|
if (sock.recv_queue.length) {
|
|
bytes = sock.recv_queue[0].data.length;
|
|
}
|
|
HEAP32[((arg)>>2)]=bytes;
|
|
return 0;
|
|
default:
|
|
return ERRNO_CODES.EINVAL;
|
|
}
|
|
},close:function (sock) {
|
|
// if we've spawned a listen server, close it
|
|
if (sock.server) {
|
|
try {
|
|
sock.server.close();
|
|
} catch (e) {
|
|
}
|
|
sock.server = null;
|
|
}
|
|
// close any peer connections
|
|
var peers = Object.keys(sock.peers);
|
|
for (var i = 0; i < peers.length; i++) {
|
|
var peer = sock.peers[peers[i]];
|
|
try {
|
|
peer.socket.close();
|
|
} catch (e) {
|
|
}
|
|
SOCKFS.websocket_sock_ops.removePeer(sock, peer);
|
|
}
|
|
return 0;
|
|
},bind:function (sock, addr, port) {
|
|
if (typeof sock.saddr !== 'undefined' || typeof sock.sport !== 'undefined') {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL); // already bound
|
|
}
|
|
sock.saddr = addr;
|
|
sock.sport = port || _mkport();
|
|
// in order to emulate dgram sockets, we need to launch a listen server when
|
|
// binding on a connection-less socket
|
|
// note: this is only required on the server side
|
|
if (sock.type === 2) {
|
|
// close the existing server if it exists
|
|
if (sock.server) {
|
|
sock.server.close();
|
|
sock.server = null;
|
|
}
|
|
// swallow error operation not supported error that occurs when binding in the
|
|
// browser where this isn't supported
|
|
try {
|
|
sock.sock_ops.listen(sock, 0);
|
|
} catch (e) {
|
|
if (!(e instanceof FS.ErrnoError)) throw e;
|
|
if (e.errno !== ERRNO_CODES.EOPNOTSUPP) throw e;
|
|
}
|
|
}
|
|
},connect:function (sock, addr, port) {
|
|
if (sock.server) {
|
|
throw new FS.ErrnoError(ERRNO_CODS.EOPNOTSUPP);
|
|
}
|
|
|
|
// TODO autobind
|
|
// if (!sock.addr && sock.type == 2) {
|
|
// }
|
|
|
|
// early out if we're already connected / in the middle of connecting
|
|
if (typeof sock.daddr !== 'undefined' && typeof sock.dport !== 'undefined') {
|
|
var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
|
|
if (dest) {
|
|
if (dest.socket.readyState === dest.socket.CONNECTING) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EALREADY);
|
|
} else {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EISCONN);
|
|
}
|
|
}
|
|
}
|
|
|
|
// add the socket to our peer list and set our
|
|
// destination address / port to match
|
|
var peer = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
|
|
sock.daddr = peer.addr;
|
|
sock.dport = peer.port;
|
|
|
|
// always "fail" in non-blocking mode
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINPROGRESS);
|
|
},listen:function (sock, backlog) {
|
|
if (!ENVIRONMENT_IS_NODE) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP);
|
|
}
|
|
if (sock.server) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL); // already listening
|
|
}
|
|
var WebSocketServer = require('ws').Server;
|
|
var host = sock.saddr;
|
|
sock.server = new WebSocketServer({
|
|
host: host,
|
|
port: sock.sport
|
|
// TODO support backlog
|
|
});
|
|
|
|
sock.server.on('connection', function(ws) {
|
|
if (sock.type === 1) {
|
|
var newsock = SOCKFS.createSocket(sock.family, sock.type, sock.protocol);
|
|
|
|
// create a peer on the new socket
|
|
var peer = SOCKFS.websocket_sock_ops.createPeer(newsock, ws);
|
|
newsock.daddr = peer.addr;
|
|
newsock.dport = peer.port;
|
|
|
|
// push to queue for accept to pick up
|
|
sock.pending.push(newsock);
|
|
} else {
|
|
// create a peer on the listen socket so calling sendto
|
|
// with the listen socket and an address will resolve
|
|
// to the correct client
|
|
SOCKFS.websocket_sock_ops.createPeer(sock, ws);
|
|
}
|
|
});
|
|
sock.server.on('closed', function() {
|
|
sock.server = null;
|
|
});
|
|
sock.server.on('error', function() {
|
|
// don't throw
|
|
});
|
|
},accept:function (listensock) {
|
|
if (!listensock.server) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
var newsock = listensock.pending.shift();
|
|
newsock.stream.flags = listensock.stream.flags;
|
|
return newsock;
|
|
},getname:function (sock, peer) {
|
|
var addr, port;
|
|
if (peer) {
|
|
if (sock.daddr === undefined || sock.dport === undefined) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
|
|
}
|
|
addr = sock.daddr;
|
|
port = sock.dport;
|
|
} else {
|
|
// TODO saddr and sport will be set for bind()'d UDP sockets, but what
|
|
// should we be returning for TCP sockets that've been connect()'d?
|
|
addr = sock.saddr || 0;
|
|
port = sock.sport || 0;
|
|
}
|
|
return { addr: addr, port: port };
|
|
},sendmsg:function (sock, buffer, offset, length, addr, port) {
|
|
if (sock.type === 2) {
|
|
// connection-less sockets will honor the message address,
|
|
// and otherwise fall back to the bound destination address
|
|
if (addr === undefined || port === undefined) {
|
|
addr = sock.daddr;
|
|
port = sock.dport;
|
|
}
|
|
// if there was no address to fall back to, error out
|
|
if (addr === undefined || port === undefined) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EDESTADDRREQ);
|
|
}
|
|
} else {
|
|
// connection-based sockets will only use the bound
|
|
addr = sock.daddr;
|
|
port = sock.dport;
|
|
}
|
|
|
|
// find the peer for the destination address
|
|
var dest = SOCKFS.websocket_sock_ops.getPeer(sock, addr, port);
|
|
|
|
// early out if not connected with a connection-based socket
|
|
if (sock.type === 1) {
|
|
if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
|
|
} else if (dest.socket.readyState === dest.socket.CONNECTING) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
|
|
}
|
|
}
|
|
|
|
// create a copy of the incoming data to send, as the WebSocket API
|
|
// doesn't work entirely with an ArrayBufferView, it'll just send
|
|
// the entire underlying buffer
|
|
var data;
|
|
if (buffer instanceof Array || buffer instanceof ArrayBuffer) {
|
|
data = buffer.slice(offset, offset + length);
|
|
} else { // ArrayBufferView
|
|
data = buffer.buffer.slice(buffer.byteOffset + offset, buffer.byteOffset + offset + length);
|
|
}
|
|
|
|
// if we're emulating a connection-less dgram socket and don't have
|
|
// a cached connection, queue the buffer to send upon connect and
|
|
// lie, saying the data was sent now.
|
|
if (sock.type === 2) {
|
|
if (!dest || dest.socket.readyState !== dest.socket.OPEN) {
|
|
// if we're not connected, open a new connection
|
|
if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
|
|
dest = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
|
|
}
|
|
dest.dgram_send_queue.push(data);
|
|
return length;
|
|
}
|
|
}
|
|
|
|
try {
|
|
// send the actual data
|
|
dest.socket.send(data);
|
|
return length;
|
|
} catch (e) {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
|
|
}
|
|
},recvmsg:function (sock, length) {
|
|
// http://pubs.opengroup.org/onlinepubs/7908799/xns/recvmsg.html
|
|
if (sock.type === 1 && sock.server) {
|
|
// tcp servers should not be recv()'ing on the listen socket
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
|
|
}
|
|
|
|
var queued = sock.recv_queue.shift();
|
|
if (!queued) {
|
|
if (sock.type === 1) {
|
|
var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
|
|
|
|
if (!dest) {
|
|
// if we have a destination address but are not connected, error out
|
|
throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
|
|
}
|
|
else if (dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
|
|
// return null if the socket has closed
|
|
return null;
|
|
}
|
|
else {
|
|
// else, our socket is in a valid state but truly has nothing available
|
|
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
|
|
}
|
|
} else {
|
|
throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
|
|
}
|
|
}
|
|
|
|
// queued.data will be an ArrayBuffer if it's unadulterated, but if it's
|
|
// requeued TCP data it'll be an ArrayBufferView
|
|
var queuedLength = queued.data.byteLength || queued.data.length;
|
|
var queuedOffset = queued.data.byteOffset || 0;
|
|
var queuedBuffer = queued.data.buffer || queued.data;
|
|
var bytesRead = Math.min(length, queuedLength);
|
|
var res = {
|
|
buffer: new Uint8Array(queuedBuffer, queuedOffset, bytesRead),
|
|
addr: queued.addr,
|
|
port: queued.port
|
|
};
|
|
|
|
|
|
// push back any unread data for TCP connections
|
|
if (sock.type === 1 && bytesRead < queuedLength) {
|
|
var bytesRemaining = queuedLength - bytesRead;
|
|
queued.data = new Uint8Array(queuedBuffer, queuedOffset + bytesRead, bytesRemaining);
|
|
sock.recv_queue.unshift(queued);
|
|
}
|
|
|
|
return res;
|
|
}}};function _send(fd, buf, len, flags) {
|
|
var sock = SOCKFS.getSocket(fd);
|
|
if (!sock) {
|
|
___setErrNo(ERRNO_CODES.EBADF);
|
|
return -1;
|
|
}
|
|
// TODO honor flags
|
|
return _write(fd, buf, len);
|
|
}
|
|
|
|
function _pwrite(fildes, buf, nbyte, offset) {
|
|
// ssize_t pwrite(int fildes, const void *buf, size_t nbyte, off_t offset);
|
|
// http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html
|
|
var stream = FS.getStream(fildes);
|
|
if (!stream) {
|
|
___setErrNo(ERRNO_CODES.EBADF);
|
|
return -1;
|
|
}
|
|
try {
|
|
var slab = HEAP8;
|
|
return FS.write(stream, slab, buf, nbyte, offset);
|
|
} catch (e) {
|
|
FS.handleFSError(e);
|
|
return -1;
|
|
}
|
|
}function _write(fildes, buf, nbyte) {
|
|
// ssize_t write(int fildes, const void *buf, size_t nbyte);
|
|
// http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html
|
|
var stream = FS.getStream(fildes);
|
|
if (!stream) {
|
|
___setErrNo(ERRNO_CODES.EBADF);
|
|
return -1;
|
|
}
|
|
|
|
|
|
try {
|
|
var slab = HEAP8;
|
|
return FS.write(stream, slab, buf, nbyte);
|
|
} catch (e) {
|
|
FS.handleFSError(e);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
function _fileno(stream) {
|
|
// int fileno(FILE *stream);
|
|
// http://pubs.opengroup.org/onlinepubs/000095399/functions/fileno.html
|
|
stream = FS.getStreamFromPtr(stream);
|
|
if (!stream) return -1;
|
|
return stream.fd;
|
|
}function _fwrite(ptr, size, nitems, stream) {
|
|
// size_t fwrite(const void *restrict ptr, size_t size, size_t nitems, FILE *restrict stream);
|
|
// http://pubs.opengroup.org/onlinepubs/000095399/functions/fwrite.html
|
|
var bytesToWrite = nitems * size;
|
|
if (bytesToWrite == 0) return 0;
|
|
var fd = _fileno(stream);
|
|
var bytesWritten = _write(fd, ptr, bytesToWrite);
|
|
if (bytesWritten == -1) {
|
|
var streamObj = FS.getStreamFromPtr(stream);
|
|
if (streamObj) streamObj.error = true;
|
|
return 0;
|
|
} else {
|
|
return Math.floor(bytesWritten / size);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
Module["_strlen"] = _strlen;
|
|
|
|
function __reallyNegative(x) {
|
|
return x < 0 || (x === 0 && (1/x) === -Infinity);
|
|
}function __formatString(format, varargs) {
|
|
var textIndex = format;
|
|
var argIndex = 0;
|
|
function getNextArg(type) {
|
|
// NOTE: Explicitly ignoring type safety. Otherwise this fails:
|
|
// int x = 4; printf("%c\n", (char)x);
|
|
var ret;
|
|
if (type === 'double') {
|
|
ret = HEAPF64[(((varargs)+(argIndex))>>3)];
|
|
} else if (type == 'i64') {
|
|
ret = [HEAP32[(((varargs)+(argIndex))>>2)],
|
|
HEAP32[(((varargs)+(argIndex+4))>>2)]];
|
|
|
|
} else {
|
|
type = 'i32'; // varargs are always i32, i64, or double
|
|
ret = HEAP32[(((varargs)+(argIndex))>>2)];
|
|
}
|
|
argIndex += Runtime.getNativeFieldSize(type);
|
|
return ret;
|
|
}
|
|
|
|
var ret = [];
|
|
var curr, next, currArg;
|
|
while(1) {
|
|
var startTextIndex = textIndex;
|
|
curr = HEAP8[(textIndex)];
|
|
if (curr === 0) break;
|
|
next = HEAP8[((textIndex+1)|0)];
|
|
if (curr == 37) {
|
|
// Handle flags.
|
|
var flagAlwaysSigned = false;
|
|
var flagLeftAlign = false;
|
|
var flagAlternative = false;
|
|
var flagZeroPad = false;
|
|
var flagPadSign = false;
|
|
flagsLoop: while (1) {
|
|
switch (next) {
|
|
case 43:
|
|
flagAlwaysSigned = true;
|
|
break;
|
|
case 45:
|
|
flagLeftAlign = true;
|
|
break;
|
|
case 35:
|
|
flagAlternative = true;
|
|
break;
|
|
case 48:
|
|
if (flagZeroPad) {
|
|
break flagsLoop;
|
|
} else {
|
|
flagZeroPad = true;
|
|
break;
|
|
}
|
|
case 32:
|
|
flagPadSign = true;
|
|
break;
|
|
default:
|
|
break flagsLoop;
|
|
}
|
|
textIndex++;
|
|
next = HEAP8[((textIndex+1)|0)];
|
|
}
|
|
|
|
// Handle width.
|
|
var width = 0;
|
|
if (next == 42) {
|
|
width = getNextArg('i32');
|
|
textIndex++;
|
|
next = HEAP8[((textIndex+1)|0)];
|
|
} else {
|
|
while (next >= 48 && next <= 57) {
|
|
width = width * 10 + (next - 48);
|
|
textIndex++;
|
|
next = HEAP8[((textIndex+1)|0)];
|
|
}
|
|
}
|
|
|
|
// Handle precision.
|
|
var precisionSet = false, precision = -1;
|
|
if (next == 46) {
|
|
precision = 0;
|
|
precisionSet = true;
|
|
textIndex++;
|
|
next = HEAP8[((textIndex+1)|0)];
|
|
if (next == 42) {
|
|
precision = getNextArg('i32');
|
|
textIndex++;
|
|
} else {
|
|
while(1) {
|
|
var precisionChr = HEAP8[((textIndex+1)|0)];
|
|
if (precisionChr < 48 ||
|
|
precisionChr > 57) break;
|
|
precision = precision * 10 + (precisionChr - 48);
|
|
textIndex++;
|
|
}
|
|
}
|
|
next = HEAP8[((textIndex+1)|0)];
|
|
}
|
|
if (precision < 0) {
|
|
precision = 6; // Standard default.
|
|
precisionSet = false;
|
|
}
|
|
|
|
// Handle integer sizes. WARNING: These assume a 32-bit architecture!
|
|
var argSize;
|
|
switch (String.fromCharCode(next)) {
|
|
case 'h':
|
|
var nextNext = HEAP8[((textIndex+2)|0)];
|
|
if (nextNext == 104) {
|
|
textIndex++;
|
|
argSize = 1; // char (actually i32 in varargs)
|
|
} else {
|
|
argSize = 2; // short (actually i32 in varargs)
|
|
}
|
|
break;
|
|
case 'l':
|
|
var nextNext = HEAP8[((textIndex+2)|0)];
|
|
if (nextNext == 108) {
|
|
textIndex++;
|
|
argSize = 8; // long long
|
|
} else {
|
|
argSize = 4; // long
|
|
}
|
|
break;
|
|
case 'L': // long long
|
|
case 'q': // int64_t
|
|
case 'j': // intmax_t
|
|
argSize = 8;
|
|
break;
|
|
case 'z': // size_t
|
|
case 't': // ptrdiff_t
|
|
case 'I': // signed ptrdiff_t or unsigned size_t
|
|
argSize = 4;
|
|
break;
|
|
default:
|
|
argSize = null;
|
|
}
|
|
if (argSize) textIndex++;
|
|
next = HEAP8[((textIndex+1)|0)];
|
|
|
|
// Handle type specifier.
|
|
switch (String.fromCharCode(next)) {
|
|
case 'd': case 'i': case 'u': case 'o': case 'x': case 'X': case 'p': {
|
|
// Integer.
|
|
var signed = next == 100 || next == 105;
|
|
argSize = argSize || 4;
|
|
var currArg = getNextArg('i' + (argSize * 8));
|
|
var argText;
|
|
// Flatten i64-1 [low, high] into a (slightly rounded) double
|
|
if (argSize == 8) {
|
|
currArg = Runtime.makeBigInt(currArg[0], currArg[1], next == 117);
|
|
}
|
|
// Truncate to requested size.
|
|
if (argSize <= 4) {
|
|
var limit = Math.pow(256, argSize) - 1;
|
|
currArg = (signed ? reSign : unSign)(currArg & limit, argSize * 8);
|
|
}
|
|
// Format the number.
|
|
var currAbsArg = Math.abs(currArg);
|
|
var prefix = '';
|
|
if (next == 100 || next == 105) {
|
|
argText = reSign(currArg, 8 * argSize, 1).toString(10);
|
|
} else if (next == 117) {
|
|
argText = unSign(currArg, 8 * argSize, 1).toString(10);
|
|
currArg = Math.abs(currArg);
|
|
} else if (next == 111) {
|
|
argText = (flagAlternative ? '0' : '') + currAbsArg.toString(8);
|
|
} else if (next == 120 || next == 88) {
|
|
prefix = (flagAlternative && currArg != 0) ? '0x' : '';
|
|
if (currArg < 0) {
|
|
// Represent negative numbers in hex as 2's complement.
|
|
currArg = -currArg;
|
|
argText = (currAbsArg - 1).toString(16);
|
|
var buffer = [];
|
|
for (var i = 0; i < argText.length; i++) {
|
|
buffer.push((0xF - parseInt(argText[i], 16)).toString(16));
|
|
}
|
|
argText = buffer.join('');
|
|
while (argText.length < argSize * 2) argText = 'f' + argText;
|
|
} else {
|
|
argText = currAbsArg.toString(16);
|
|
}
|
|
if (next == 88) {
|
|
prefix = prefix.toUpperCase();
|
|
argText = argText.toUpperCase();
|
|
}
|
|
} else if (next == 112) {
|
|
if (currAbsArg === 0) {
|
|
argText = '(nil)';
|
|
} else {
|
|
prefix = '0x';
|
|
argText = currAbsArg.toString(16);
|
|
}
|
|
}
|
|
if (precisionSet) {
|
|
while (argText.length < precision) {
|
|
argText = '0' + argText;
|
|
}
|
|
}
|
|
|
|
// Add sign if needed
|
|
if (currArg >= 0) {
|
|
if (flagAlwaysSigned) {
|
|
prefix = '+' + prefix;
|
|
} else if (flagPadSign) {
|
|
prefix = ' ' + prefix;
|
|
}
|
|
}
|
|
|
|
// Move sign to prefix so we zero-pad after the sign
|
|
if (argText.charAt(0) == '-') {
|
|
prefix = '-' + prefix;
|
|
argText = argText.substr(1);
|
|
}
|
|
|
|
// Add padding.
|
|
while (prefix.length + argText.length < width) {
|
|
if (flagLeftAlign) {
|
|
argText += ' ';
|
|
} else {
|
|
if (flagZeroPad) {
|
|
argText = '0' + argText;
|
|
} else {
|
|
prefix = ' ' + prefix;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Insert the result into the buffer.
|
|
argText = prefix + argText;
|
|
argText.split('').forEach(function(chr) {
|
|
ret.push(chr.charCodeAt(0));
|
|
});
|
|
break;
|
|
}
|
|
case 'f': case 'F': case 'e': case 'E': case 'g': case 'G': {
|
|
// Float.
|
|
var currArg = getNextArg('double');
|
|
var argText;
|
|
if (isNaN(currArg)) {
|
|
argText = 'nan';
|
|
flagZeroPad = false;
|
|
} else if (!isFinite(currArg)) {
|
|
argText = (currArg < 0 ? '-' : '') + 'inf';
|
|
flagZeroPad = false;
|
|
} else {
|
|
var isGeneral = false;
|
|
var effectivePrecision = Math.min(precision, 20);
|
|
|
|
// Convert g/G to f/F or e/E, as per:
|
|
// http://pubs.opengroup.org/onlinepubs/9699919799/functions/printf.html
|
|
if (next == 103 || next == 71) {
|
|
isGeneral = true;
|
|
precision = precision || 1;
|
|
var exponent = parseInt(currArg.toExponential(effectivePrecision).split('e')[1], 10);
|
|
if (precision > exponent && exponent >= -4) {
|
|
next = ((next == 103) ? 'f' : 'F').charCodeAt(0);
|
|
precision -= exponent + 1;
|
|
} else {
|
|
next = ((next == 103) ? 'e' : 'E').charCodeAt(0);
|
|
precision--;
|
|
}
|
|
effectivePrecision = Math.min(precision, 20);
|
|
}
|
|
|
|
if (next == 101 || next == 69) {
|
|
argText = currArg.toExponential(effectivePrecision);
|
|
// Make sure the exponent has at least 2 digits.
|
|
if (/[eE][-+]\d$/.test(argText)) {
|
|
argText = argText.slice(0, -1) + '0' + argText.slice(-1);
|
|
}
|
|
} else if (next == 102 || next == 70) {
|
|
argText = currArg.toFixed(effectivePrecision);
|
|
if (currArg === 0 && __reallyNegative(currArg)) {
|
|
argText = '-' + argText;
|
|
}
|
|
}
|
|
|
|
var parts = argText.split('e');
|
|
if (isGeneral && !flagAlternative) {
|
|
// Discard trailing zeros and periods.
|
|
while (parts[0].length > 1 && parts[0].indexOf('.') != -1 &&
|
|
(parts[0].slice(-1) == '0' || parts[0].slice(-1) == '.')) {
|
|
parts[0] = parts[0].slice(0, -1);
|
|
}
|
|
} else {
|
|
// Make sure we have a period in alternative mode.
|
|
if (flagAlternative && argText.indexOf('.') == -1) parts[0] += '.';
|
|
// Zero pad until required precision.
|
|
while (precision > effectivePrecision++) parts[0] += '0';
|
|
}
|
|
argText = parts[0] + (parts.length > 1 ? 'e' + parts[1] : '');
|
|
|
|
// Capitalize 'E' if needed.
|
|
if (next == 69) argText = argText.toUpperCase();
|
|
|
|
// Add sign.
|
|
if (currArg >= 0) {
|
|
if (flagAlwaysSigned) {
|
|
argText = '+' + argText;
|
|
} else if (flagPadSign) {
|
|
argText = ' ' + argText;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add padding.
|
|
while (argText.length < width) {
|
|
if (flagLeftAlign) {
|
|
argText += ' ';
|
|
} else {
|
|
if (flagZeroPad && (argText[0] == '-' || argText[0] == '+')) {
|
|
argText = argText[0] + '0' + argText.slice(1);
|
|
} else {
|
|
argText = (flagZeroPad ? '0' : ' ') + argText;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Adjust case.
|
|
if (next < 97) argText = argText.toUpperCase();
|
|
|
|
// Insert the result into the buffer.
|
|
argText.split('').forEach(function(chr) {
|
|
ret.push(chr.charCodeAt(0));
|
|
});
|
|
break;
|
|
}
|
|
case 's': {
|
|
// String.
|
|
var arg = getNextArg('i8*');
|
|
var argLength = arg ? _strlen(arg) : '(null)'.length;
|
|
if (precisionSet) argLength = Math.min(argLength, precision);
|
|
if (!flagLeftAlign) {
|
|
while (argLength < width--) {
|
|
ret.push(32);
|
|
}
|
|
}
|
|
if (arg) {
|
|
for (var i = 0; i < argLength; i++) {
|
|
ret.push(HEAPU8[((arg++)|0)]);
|
|
}
|
|
} else {
|
|
ret = ret.concat(intArrayFromString('(null)'.substr(0, argLength), true));
|
|
}
|
|
if (flagLeftAlign) {
|
|
while (argLength < width--) {
|
|
ret.push(32);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case 'c': {
|
|
// Character.
|
|
if (flagLeftAlign) ret.push(getNextArg('i8'));
|
|
while (--width > 0) {
|
|
ret.push(32);
|
|
}
|
|
if (!flagLeftAlign) ret.push(getNextArg('i8'));
|
|
break;
|
|
}
|
|
case 'n': {
|
|
// Write the length written so far to the next parameter.
|
|
var ptr = getNextArg('i32*');
|
|
HEAP32[((ptr)>>2)]=ret.length;
|
|
break;
|
|
}
|
|
case '%': {
|
|
// Literal percent sign.
|
|
ret.push(curr);
|
|
break;
|
|
}
|
|
default: {
|
|
// Unknown specifiers remain untouched.
|
|
for (var i = startTextIndex; i < textIndex + 2; i++) {
|
|
ret.push(HEAP8[(i)]);
|
|
}
|
|
}
|
|
}
|
|
textIndex += 2;
|
|
// TODO: Support a/A (hex float) and m (last error) specifiers.
|
|
// TODO: Support %1${specifier} for arg selection.
|
|
} else {
|
|
ret.push(curr);
|
|
textIndex += 1;
|
|
}
|
|
}
|
|
return ret;
|
|
}function _fprintf(stream, format, varargs) {
|
|
// int fprintf(FILE *restrict stream, const char *restrict format, ...);
|
|
// http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html
|
|
var result = __formatString(format, varargs);
|
|
var stack = Runtime.stackSave();
|
|
var ret = _fwrite(allocate(result, 'i8', ALLOC_STACK), 1, result.length, stream);
|
|
Runtime.stackRestore(stack);
|
|
return ret;
|
|
}function _printf(format, varargs) {
|
|
// int printf(const char *restrict format, ...);
|
|
// http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html
|
|
var stdout = HEAP32[((_stdout)>>2)];
|
|
return _fprintf(stdout, format, varargs);
|
|
}
|
|
|
|
|
|
Module["_memset"] = _memset;
|
|
|
|
|
|
|
|
function _emscripten_memcpy_big(dest, src, num) {
|
|
HEAPU8.set(HEAPU8.subarray(src, src+num), dest);
|
|
return dest;
|
|
}
|
|
Module["_memcpy"] = _memcpy;
|
|
|
|
function _free() {
|
|
}
|
|
Module["_free"] = _free;
|
|
Module["requestFullScreen"] = function Module_requestFullScreen(lockPointer, resizeCanvas) { Browser.requestFullScreen(lockPointer, resizeCanvas) };
|
|
Module["requestAnimationFrame"] = function Module_requestAnimationFrame(func) { Browser.requestAnimationFrame(func) };
|
|
Module["setCanvasSize"] = function Module_setCanvasSize(width, height, noUpdates) { Browser.setCanvasSize(width, height, noUpdates) };
|
|
Module["pauseMainLoop"] = function Module_pauseMainLoop() { Browser.mainLoop.pause() };
|
|
Module["resumeMainLoop"] = function Module_resumeMainLoop() { Browser.mainLoop.resume() };
|
|
Module["getUserMedia"] = function Module_getUserMedia() { Browser.getUserMedia() }
|
|
FS.staticInit();__ATINIT__.unshift({ func: function() { if (!Module["noFSInit"] && !FS.init.initialized) FS.init() } });__ATMAIN__.push({ func: function() { FS.ignorePermissions = false } });__ATEXIT__.push({ func: function() { FS.quit() } });Module["FS_createFolder"] = FS.createFolder;Module["FS_createPath"] = FS.createPath;Module["FS_createDataFile"] = FS.createDataFile;Module["FS_createPreloadedFile"] = FS.createPreloadedFile;Module["FS_createLazyFile"] = FS.createLazyFile;Module["FS_createLink"] = FS.createLink;Module["FS_createDevice"] = FS.createDevice;
|
|
___errno_state = Runtime.staticAlloc(4); HEAP32[((___errno_state)>>2)]=0;
|
|
__ATINIT__.unshift({ func: function() { TTY.init() } });__ATEXIT__.push({ func: function() { TTY.shutdown() } });TTY.utf8 = new Runtime.UTF8Processor();
|
|
if (ENVIRONMENT_IS_NODE) { var fs = require("fs"); NODEFS.staticInit(); }
|
|
__ATINIT__.push({ func: function() { SOCKFS.root = FS.mount(SOCKFS, {}, null); } });
|
|
STACK_BASE = STACKTOP = Runtime.alignMemory(STATICTOP);
|
|
|
|
staticSealed = true; // seal the static portion of memory
|
|
|
|
STACK_MAX = STACK_BASE + 5242880;
|
|
|
|
DYNAMIC_BASE = DYNAMICTOP = Runtime.alignMemory(STACK_MAX);
|
|
|
|
assert(DYNAMIC_BASE < TOTAL_MEMORY, "TOTAL_MEMORY not big enough for stack");
|
|
|
|
|
|
var Math_min = Math.min;
|
|
function asmPrintInt(x, y) {
|
|
Module.print('int ' + x + ',' + y);// + ' ' + new Error().stack);
|
|
}
|
|
function asmPrintFloat(x, y) {
|
|
Module.print('float ' + x + ',' + y);// + ' ' + new Error().stack);
|
|
}
|
|
// EMSCRIPTEN_START_ASM
|
|
var ModuleFunc;
|
|
var asm = (ModuleFunc = function(global, env, buffer) {
|
|
'use asm';
|
|
var HEAP8 = new global.Int8Array(buffer);
|
|
var HEAP16 = new global.Int16Array(buffer);
|
|
var HEAP32 = new global.Int32Array(buffer);
|
|
var HEAPU8 = new global.Uint8Array(buffer);
|
|
var HEAPU16 = new global.Uint16Array(buffer);
|
|
var HEAPU32 = new global.Uint32Array(buffer);
|
|
var HEAPF32 = new global.Float32Array(buffer);
|
|
var HEAPF64 = new global.Float64Array(buffer);
|
|
|
|
var STACKTOP=env.STACKTOP|0;
|
|
var STACK_MAX=env.STACK_MAX|0;
|
|
var tempDoublePtr=env.tempDoublePtr|0;
|
|
var ABORT=env.ABORT|0;
|
|
|
|
var __THREW__ = 0;
|
|
var threwValue = 0;
|
|
var setjmpId = 0;
|
|
var undef = 0;
|
|
var nan = +env.NaN, inf = +env.Infinity;
|
|
var tempInt = 0, tempBigInt = 0, tempBigIntP = 0, tempBigIntS = 0, tempBigIntR = 0.0, tempBigIntI = 0, tempBigIntD = 0, tempValue = 0, tempDouble = 0.0;
|
|
|
|
var tempRet0 = 0;
|
|
var tempRet1 = 0;
|
|
var tempRet2 = 0;
|
|
var tempRet3 = 0;
|
|
var tempRet4 = 0;
|
|
var tempRet5 = 0;
|
|
var tempRet6 = 0;
|
|
var tempRet7 = 0;
|
|
var tempRet8 = 0;
|
|
var tempRet9 = 0;
|
|
var Math_floor=global.Math.floor;
|
|
var Math_abs=global.Math.abs;
|
|
var Math_sqrt=global.Math.sqrt;
|
|
var Math_pow=global.Math.pow;
|
|
var Math_cos=global.Math.cos;
|
|
var Math_sin=global.Math.sin;
|
|
var Math_tan=global.Math.tan;
|
|
var Math_acos=global.Math.acos;
|
|
var Math_asin=global.Math.asin;
|
|
var Math_atan=global.Math.atan;
|
|
var Math_atan2=global.Math.atan2;
|
|
var Math_exp=global.Math.exp;
|
|
var Math_log=global.Math.log;
|
|
var Math_ceil=global.Math.ceil;
|
|
var Math_imul=global.Math.imul;
|
|
var abort=env.abort;
|
|
var assert=env.assert;
|
|
var asmPrintInt=env.asmPrintInt;
|
|
var asmPrintFloat=env.asmPrintFloat;
|
|
var Math_min=env.min;
|
|
var _free=env._free;
|
|
var _emscripten_memcpy_big=env._emscripten_memcpy_big;
|
|
var _printf=env._printf;
|
|
var _send=env._send;
|
|
var _pwrite=env._pwrite;
|
|
var __reallyNegative=env.__reallyNegative;
|
|
var _fwrite=env._fwrite;
|
|
var _malloc=env._malloc;
|
|
var _mkport=env._mkport;
|
|
var _fprintf=env._fprintf;
|
|
var ___setErrNo=env.___setErrNo;
|
|
var __formatString=env.__formatString;
|
|
var _fileno=env._fileno;
|
|
var _fflush=env._fflush;
|
|
var _write=env._write;
|
|
var tempFloat = 0.0;
|
|
|
|
// EMSCRIPTEN_START_FUNCS
|
|
function _main(i3, i5) {
|
|
i3 = i3 | 0;
|
|
i5 = i5 | 0;
|
|
var i1 = 0, i2 = 0, i4 = 0, i6 = 0, i7 = 0, i8 = 0, i9 = 0, i10 = 0, i11 = 0, i12 = 0, i13 = 0, i14 = 0, i15 = 0, i16 = 0, i17 = 0, i18 = 0, i19 = 0;
|
|
i1 = STACKTOP;
|
|
STACKTOP = STACKTOP + 16 | 0;
|
|
i2 = i1;
|
|
L1 : do {
|
|
if ((i3 | 0) > 1) {
|
|
i3 = HEAP8[HEAP32[i5 + 4 >> 2] | 0] | 0;
|
|
switch (i3 | 0) {
|
|
case 50:
|
|
{
|
|
i3 = 625;
|
|
break L1;
|
|
}
|
|
case 51:
|
|
{
|
|
i4 = 4;
|
|
break L1;
|
|
}
|
|
case 52:
|
|
{
|
|
i3 = 6250;
|
|
break L1;
|
|
}
|
|
case 53:
|
|
{
|
|
i3 = 12500;
|
|
break L1;
|
|
}
|
|
case 49:
|
|
{
|
|
i3 = 75;
|
|
break L1;
|
|
}
|
|
case 48:
|
|
{
|
|
i12 = 0;
|
|
STACKTOP = i1;
|
|
return i12 | 0;
|
|
}
|
|
default:
|
|
{
|
|
HEAP32[i2 >> 2] = i3 + -48;
|
|
_printf(8, i2 | 0) | 0;
|
|
i12 = -1;
|
|
STACKTOP = i1;
|
|
return i12 | 0;
|
|
}
|
|
}
|
|
} else {
|
|
i4 = 4;
|
|
}
|
|
} while (0);
|
|
if ((i4 | 0) == 4) {
|
|
i3 = 1250;
|
|
}
|
|
i4 = 0;
|
|
i12 = 0;
|
|
do {
|
|
i9 = (i4 | 0) % 10 | 0;
|
|
i5 = i9 + i4 | 0;
|
|
i6 = (i4 | 0) % 255 | 0;
|
|
i8 = (i4 | 0) % 15 | 0;
|
|
i10 = ((i4 | 0) % 120 | 0 | 0) % 1024 | 0;
|
|
i11 = ((i4 | 0) % 1024 | 0) + i4 | 0;
|
|
i5 = ((i5 | 0) % 1024 | 0) + i5 | 0;
|
|
i8 = ((i8 | 0) % 1024 | 0) + i8 | 0;
|
|
i6 = (((i6 | 0) % 1024 | 0) + i6 + i10 | 0) % 1024 | 0;
|
|
i7 = 0;
|
|
do {
|
|
i17 = i7 << 1;
|
|
i14 = (i7 | 0) % 120 | 0;
|
|
i18 = (i17 | 0) % 1024 | 0;
|
|
i19 = (i9 + i7 | 0) % 1024 | 0;
|
|
i16 = ((i7 | 0) % 255 | 0 | 0) % 1024 | 0;
|
|
i15 = (i7 | 0) % 1024 | 0;
|
|
i13 = ((i7 | 0) % 15 | 0 | 0) % 1024 | 0;
|
|
i12 = (((i19 + i18 + i16 + i10 + i15 + i13 + ((i11 + i19 | 0) % 1024 | 0) + ((i5 + i18 | 0) % 1024 | 0) + ((i18 + i17 + i16 | 0) % 1024 | 0) + i6 + ((i8 + i15 | 0) % 1024 | 0) + ((((i14 | 0) % 1024 | 0) + i14 + i13 | 0) % 1024 | 0) | 0) % 100 | 0) + i12 | 0) % 10240 | 0;
|
|
i7 = i7 + 1 | 0;
|
|
} while ((i7 | 0) != 5e4);
|
|
i4 = i4 + 1 | 0;
|
|
} while ((i4 | 0) < (i3 | 0));
|
|
HEAP32[i2 >> 2] = i12;
|
|
_printf(24, i2 | 0) | 0;
|
|
i19 = 0;
|
|
STACKTOP = i1;
|
|
return i19 | 0;
|
|
}
|
|
function _memcpy(i3, i2, i1) {
|
|
i3 = i3 | 0;
|
|
i2 = i2 | 0;
|
|
i1 = i1 | 0;
|
|
var i4 = 0;
|
|
if ((i1 | 0) >= 4096) return _emscripten_memcpy_big(i3 | 0, i2 | 0, i1 | 0) | 0;
|
|
i4 = i3 | 0;
|
|
if ((i3 & 3) == (i2 & 3)) {
|
|
while (i3 & 3) {
|
|
if ((i1 | 0) == 0) return i4 | 0;
|
|
HEAP8[i3] = HEAP8[i2] | 0;
|
|
i3 = i3 + 1 | 0;
|
|
i2 = i2 + 1 | 0;
|
|
i1 = i1 - 1 | 0;
|
|
}
|
|
while ((i1 | 0) >= 4) {
|
|
HEAP32[i3 >> 2] = HEAP32[i2 >> 2];
|
|
i3 = i3 + 4 | 0;
|
|
i2 = i2 + 4 | 0;
|
|
i1 = i1 - 4 | 0;
|
|
}
|
|
}
|
|
while ((i1 | 0) > 0) {
|
|
HEAP8[i3] = HEAP8[i2] | 0;
|
|
i3 = i3 + 1 | 0;
|
|
i2 = i2 + 1 | 0;
|
|
i1 = i1 - 1 | 0;
|
|
}
|
|
return i4 | 0;
|
|
}
|
|
function _memset(i1, i4, i3) {
|
|
i1 = i1 | 0;
|
|
i4 = i4 | 0;
|
|
i3 = i3 | 0;
|
|
var i2 = 0, i5 = 0, i6 = 0, i7 = 0;
|
|
i2 = i1 + i3 | 0;
|
|
if ((i3 | 0) >= 20) {
|
|
i4 = i4 & 255;
|
|
i7 = i1 & 3;
|
|
i6 = i4 | i4 << 8 | i4 << 16 | i4 << 24;
|
|
i5 = i2 & ~3;
|
|
if (i7) {
|
|
i7 = i1 + 4 - i7 | 0;
|
|
while ((i1 | 0) < (i7 | 0)) {
|
|
HEAP8[i1] = i4;
|
|
i1 = i1 + 1 | 0;
|
|
}
|
|
}
|
|
while ((i1 | 0) < (i5 | 0)) {
|
|
HEAP32[i1 >> 2] = i6;
|
|
i1 = i1 + 4 | 0;
|
|
}
|
|
}
|
|
while ((i1 | 0) < (i2 | 0)) {
|
|
HEAP8[i1] = i4;
|
|
i1 = i1 + 1 | 0;
|
|
}
|
|
return i1 - i3 | 0;
|
|
}
|
|
function copyTempDouble(i1) {
|
|
i1 = i1 | 0;
|
|
HEAP8[tempDoublePtr] = HEAP8[i1];
|
|
HEAP8[tempDoublePtr + 1 | 0] = HEAP8[i1 + 1 | 0];
|
|
HEAP8[tempDoublePtr + 2 | 0] = HEAP8[i1 + 2 | 0];
|
|
HEAP8[tempDoublePtr + 3 | 0] = HEAP8[i1 + 3 | 0];
|
|
HEAP8[tempDoublePtr + 4 | 0] = HEAP8[i1 + 4 | 0];
|
|
HEAP8[tempDoublePtr + 5 | 0] = HEAP8[i1 + 5 | 0];
|
|
HEAP8[tempDoublePtr + 6 | 0] = HEAP8[i1 + 6 | 0];
|
|
HEAP8[tempDoublePtr + 7 | 0] = HEAP8[i1 + 7 | 0];
|
|
}
|
|
function copyTempFloat(i1) {
|
|
i1 = i1 | 0;
|
|
HEAP8[tempDoublePtr] = HEAP8[i1];
|
|
HEAP8[tempDoublePtr + 1 | 0] = HEAP8[i1 + 1 | 0];
|
|
HEAP8[tempDoublePtr + 2 | 0] = HEAP8[i1 + 2 | 0];
|
|
HEAP8[tempDoublePtr + 3 | 0] = HEAP8[i1 + 3 | 0];
|
|
}
|
|
function runPostSets() {}
|
|
function _strlen(i1) {
|
|
i1 = i1 | 0;
|
|
var i2 = 0;
|
|
i2 = i1;
|
|
while (HEAP8[i2] | 0) {
|
|
i2 = i2 + 1 | 0;
|
|
}
|
|
return i2 - i1 | 0;
|
|
}
|
|
function stackAlloc(i1) {
|
|
i1 = i1 | 0;
|
|
var i2 = 0;
|
|
i2 = STACKTOP;
|
|
STACKTOP = STACKTOP + i1 | 0;
|
|
STACKTOP = STACKTOP + 7 & -8;
|
|
return i2 | 0;
|
|
}
|
|
function setThrew(i1, i2) {
|
|
i1 = i1 | 0;
|
|
i2 = i2 | 0;
|
|
if ((__THREW__ | 0) == 0) {
|
|
__THREW__ = i1;
|
|
threwValue = i2;
|
|
}
|
|
}
|
|
function stackRestore(i1) {
|
|
i1 = i1 | 0;
|
|
STACKTOP = i1;
|
|
}
|
|
function setTempRet9(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet9 = i1;
|
|
}
|
|
function setTempRet8(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet8 = i1;
|
|
}
|
|
function setTempRet7(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet7 = i1;
|
|
}
|
|
function setTempRet6(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet6 = i1;
|
|
}
|
|
function setTempRet5(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet5 = i1;
|
|
}
|
|
function setTempRet4(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet4 = i1;
|
|
}
|
|
function setTempRet3(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet3 = i1;
|
|
}
|
|
function setTempRet2(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet2 = i1;
|
|
}
|
|
function setTempRet1(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet1 = i1;
|
|
}
|
|
function setTempRet0(i1) {
|
|
i1 = i1 | 0;
|
|
tempRet0 = i1;
|
|
}
|
|
function stackSave() {
|
|
return STACKTOP | 0;
|
|
}
|
|
|
|
// EMSCRIPTEN_END_FUNCS
|
|
|
|
|
|
return { _strlen: _strlen, _memcpy: _memcpy, _main: _main, _memset: _memset, runPostSets: runPostSets, stackAlloc: stackAlloc, stackSave: stackSave, stackRestore: stackRestore, setThrew: setThrew, setTempRet0: setTempRet0, setTempRet1: setTempRet1, setTempRet2: setTempRet2, setTempRet3: setTempRet3, setTempRet4: setTempRet4, setTempRet5: setTempRet5, setTempRet6: setTempRet6, setTempRet7: setTempRet7, setTempRet8: setTempRet8, setTempRet9: setTempRet9 };
|
|
})
|
|
// EMSCRIPTEN_END_ASM
|
|
({ "Math": Math, "Int8Array": Int8Array, "Int16Array": Int16Array, "Int32Array": Int32Array, "Uint8Array": Uint8Array, "Uint16Array": Uint16Array, "Uint32Array": Uint32Array, "Float32Array": Float32Array, "Float64Array": Float64Array }, { "abort": abort, "assert": assert, "asmPrintInt": asmPrintInt, "asmPrintFloat": asmPrintFloat, "min": Math_min, "_free": _free, "_emscripten_memcpy_big": _emscripten_memcpy_big, "_printf": _printf, "_send": _send, "_pwrite": _pwrite, "__reallyNegative": __reallyNegative, "_fwrite": _fwrite, "_malloc": _malloc, "_mkport": _mkport, "_fprintf": _fprintf, "___setErrNo": ___setErrNo, "__formatString": __formatString, "_fileno": _fileno, "_fflush": _fflush, "_write": _write, "STACKTOP": STACKTOP, "STACK_MAX": STACK_MAX, "tempDoublePtr": tempDoublePtr, "ABORT": ABORT, "NaN": NaN, "Infinity": Infinity }, buffer);
|
|
assertTrue(%IsAsmWasmCode(ModuleFunc));
|
|
var _strlen = Module["_strlen"] = asm["_strlen"];
|
|
var _memcpy = Module["_memcpy"] = asm["_memcpy"];
|
|
var _main = Module["_main"] = asm["_main"];
|
|
var _memset = Module["_memset"] = asm["_memset"];
|
|
var runPostSets = Module["runPostSets"] = asm["runPostSets"];
|
|
|
|
Runtime.stackAlloc = function(size) { return asm['stackAlloc'](size) };
|
|
Runtime.stackSave = function() { return asm['stackSave']() };
|
|
Runtime.stackRestore = function(top) { asm['stackRestore'](top) };
|
|
|
|
|
|
// Warning: printing of i64 values may be slightly rounded! No deep i64 math used, so precise i64 code not included
|
|
var i64Math = null;
|
|
|
|
// === Auto-generated postamble setup entry stuff ===
|
|
|
|
if (memoryInitializer) {
|
|
if (ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL) {
|
|
var data = Module['readBinary'](memoryInitializer);
|
|
HEAPU8.set(data, STATIC_BASE);
|
|
} else {
|
|
addRunDependency('memory initializer');
|
|
Browser.asyncLoad(memoryInitializer, function(data) {
|
|
HEAPU8.set(data, STATIC_BASE);
|
|
removeRunDependency('memory initializer');
|
|
}, function(data) {
|
|
throw 'could not load memory initializer ' + memoryInitializer;
|
|
});
|
|
}
|
|
}
|
|
|
|
function ExitStatus(status) {
|
|
this.name = "ExitStatus";
|
|
this.message = "Program terminated with exit(" + status + ")";
|
|
this.status = status;
|
|
};
|
|
ExitStatus.prototype = new Error();
|
|
ExitStatus.prototype.constructor = ExitStatus;
|
|
|
|
var initialStackTop;
|
|
var preloadStartTime = null;
|
|
var calledMain = false;
|
|
|
|
dependenciesFulfilled = function runCaller() {
|
|
// If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
|
|
if (!Module['calledRun'] && shouldRunNow) run([].concat(Module["arguments"]));
|
|
if (!Module['calledRun']) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
|
|
}
|
|
|
|
Module['callMain'] = Module.callMain = function callMain(args) {
|
|
assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on __ATMAIN__)');
|
|
assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');
|
|
|
|
args = args || [];
|
|
|
|
ensureInitRuntime();
|
|
|
|
var argc = args.length+1;
|
|
function pad() {
|
|
for (var i = 0; i < 4-1; i++) {
|
|
argv.push(0);
|
|
}
|
|
}
|
|
var argv = [allocate(intArrayFromString("/bin/this.program"), 'i8', ALLOC_NORMAL) ];
|
|
pad();
|
|
for (var i = 0; i < argc-1; i = i + 1) {
|
|
argv.push(allocate(intArrayFromString(args[i]), 'i8', ALLOC_NORMAL));
|
|
pad();
|
|
}
|
|
argv.push(0);
|
|
argv = allocate(argv, 'i32', ALLOC_NORMAL);
|
|
|
|
initialStackTop = STACKTOP;
|
|
|
|
try {
|
|
|
|
var ret = Module['_main'](argc, argv, 0);
|
|
|
|
|
|
// if we're not running an evented main loop, it's time to exit
|
|
if (!Module['noExitRuntime']) {
|
|
exit(ret);
|
|
}
|
|
}
|
|
catch(e) {
|
|
if (e instanceof ExitStatus) {
|
|
// exit() throws this once it's done to make sure execution
|
|
// has been stopped completely
|
|
return;
|
|
} else if (e == 'SimulateInfiniteLoop') {
|
|
// running an evented main loop, don't immediately exit
|
|
Module['noExitRuntime'] = true;
|
|
return;
|
|
} else {
|
|
if (e && typeof e === 'object' && e.stack) Module.printErr('exception thrown: ' + [e, e.stack]);
|
|
throw e;
|
|
}
|
|
} finally {
|
|
calledMain = true;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
function run(args) {
|
|
args = args || Module['arguments'];
|
|
|
|
if (preloadStartTime === null) preloadStartTime = Date.now();
|
|
|
|
if (runDependencies > 0) {
|
|
Module.printErr('run() called, but dependencies remain, so not running');
|
|
return;
|
|
}
|
|
|
|
preRun();
|
|
|
|
if (runDependencies > 0) return; // a preRun added a dependency, run will be called later
|
|
if (Module['calledRun']) return; // run may have just been called through dependencies being fulfilled just in this very frame
|
|
|
|
function doRun() {
|
|
if (Module['calledRun']) return; // run may have just been called while the async setStatus time below was happening
|
|
Module['calledRun'] = true;
|
|
|
|
ensureInitRuntime();
|
|
|
|
preMain();
|
|
|
|
if (ENVIRONMENT_IS_WEB && preloadStartTime !== null) {
|
|
Module.printErr('pre-main prep time: ' + (Date.now() - preloadStartTime) + ' ms');
|
|
}
|
|
|
|
if (Module['_main'] && shouldRunNow) {
|
|
Module['callMain'](args);
|
|
}
|
|
|
|
postRun();
|
|
}
|
|
|
|
if (Module['setStatus']) {
|
|
Module['setStatus']('Running...');
|
|
setTimeout(function() {
|
|
setTimeout(function() {
|
|
Module['setStatus']('');
|
|
}, 1);
|
|
if (!ABORT) doRun();
|
|
}, 1);
|
|
} else {
|
|
doRun();
|
|
}
|
|
}
|
|
Module['run'] = Module.run = run;
|
|
|
|
function exit(status) {
|
|
ABORT = true;
|
|
EXITSTATUS = status;
|
|
STACKTOP = initialStackTop;
|
|
|
|
// exit the runtime
|
|
exitRuntime();
|
|
|
|
// TODO We should handle this differently based on environment.
|
|
// In the browser, the best we can do is throw an exception
|
|
// to halt execution, but in node we could process.exit and
|
|
// I'd imagine SM shell would have something equivalent.
|
|
// This would let us set a proper exit status (which
|
|
// would be great for checking test exit statuses).
|
|
// https://github.com/kripken/emscripten/issues/1371
|
|
|
|
// throw an exception to halt the current execution
|
|
throw new ExitStatus(status);
|
|
}
|
|
Module['exit'] = Module.exit = exit;
|
|
|
|
function abort(text) {
|
|
if (text) {
|
|
Module.print(text);
|
|
Module.printErr(text);
|
|
}
|
|
|
|
ABORT = true;
|
|
EXITSTATUS = 1;
|
|
|
|
var extra = '\nIf this abort() is unexpected, build with -s ASSERTIONS=1 which can give more information.';
|
|
|
|
throw 'abort() at ' + stackTrace() + extra;
|
|
}
|
|
Module['abort'] = Module.abort = abort;
|
|
|
|
// {{PRE_RUN_ADDITIONS}}
|
|
|
|
if (Module['preInit']) {
|
|
if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
|
|
while (Module['preInit'].length > 0) {
|
|
Module['preInit'].pop()();
|
|
}
|
|
}
|
|
|
|
// shouldRunNow refers to calling main(), not run().
|
|
var shouldRunNow = true;
|
|
if (Module['noInitialRun']) {
|
|
shouldRunNow = false;
|
|
}
|
|
|
|
|
|
run([].concat(Module["arguments"]));
|