7b57b624d1
Do not define an object as a user root if its context is not present in Global handles. R=mstarzinger@chromium.org, yurys@chromium.org Review URL: https://codereview.chromium.org/17881005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15381 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
1829 lines
66 KiB
C++
1829 lines
66 KiB
C++
// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Tests for heap profiler
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#include <ctype.h>
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#include "v8.h"
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#include "cctest.h"
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#include "hashmap.h"
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#include "heap-profiler.h"
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#include "snapshot.h"
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#include "debug.h"
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#include "utils-inl.h"
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#include "../include/v8-profiler.h"
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namespace {
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class NamedEntriesDetector {
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public:
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NamedEntriesDetector()
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: has_A2(false), has_B2(false), has_C2(false) {
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}
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void CheckEntry(i::HeapEntry* entry) {
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if (strcmp(entry->name(), "A2") == 0) has_A2 = true;
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if (strcmp(entry->name(), "B2") == 0) has_B2 = true;
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if (strcmp(entry->name(), "C2") == 0) has_C2 = true;
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}
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static bool AddressesMatch(void* key1, void* key2) {
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return key1 == key2;
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}
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void CheckAllReachables(i::HeapEntry* root) {
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i::HashMap visited(AddressesMatch);
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i::List<i::HeapEntry*> list(10);
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list.Add(root);
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CheckEntry(root);
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while (!list.is_empty()) {
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i::HeapEntry* entry = list.RemoveLast();
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i::Vector<i::HeapGraphEdge*> children = entry->children();
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for (int i = 0; i < children.length(); ++i) {
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if (children[i]->type() == i::HeapGraphEdge::kShortcut) continue;
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i::HeapEntry* child = children[i]->to();
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i::HashMap::Entry* entry = visited.Lookup(
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reinterpret_cast<void*>(child),
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static_cast<uint32_t>(reinterpret_cast<uintptr_t>(child)),
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true);
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if (entry->value)
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continue;
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entry->value = reinterpret_cast<void*>(1);
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list.Add(child);
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CheckEntry(child);
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}
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}
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}
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bool has_A2;
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bool has_B2;
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bool has_C2;
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};
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} // namespace
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static const v8::HeapGraphNode* GetGlobalObject(
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const v8::HeapSnapshot* snapshot) {
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CHECK_EQ(2, snapshot->GetRoot()->GetChildrenCount());
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// The 0th-child is (GC Roots), 1st is the user root.
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const v8::HeapGraphNode* global_obj =
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snapshot->GetRoot()->GetChild(1)->GetToNode();
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CHECK_EQ(0, strncmp("Object", const_cast<i::HeapEntry*>(
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reinterpret_cast<const i::HeapEntry*>(global_obj))->name(), 6));
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return global_obj;
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}
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static const v8::HeapGraphNode* GetProperty(const v8::HeapGraphNode* node,
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v8::HeapGraphEdge::Type type,
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const char* name) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = node->GetChild(i);
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v8::String::Utf8Value prop_name(prop->GetName());
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if (prop->GetType() == type && strcmp(name, *prop_name) == 0)
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return prop->GetToNode();
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}
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return NULL;
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}
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static bool HasString(const v8::HeapGraphNode* node, const char* contents) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = node->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kString) {
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v8::String::Utf8Value node_name(node->GetName());
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if (strcmp(contents, *node_name) == 0) return true;
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}
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}
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return false;
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}
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TEST(HeapSnapshot) {
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LocalContext env2;
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v8::HandleScope scope(env2->GetIsolate());
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v8::HeapProfiler* heap_profiler = env2->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function A2() {}\n"
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"function B2(x) { return function() { return typeof x; }; }\n"
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"function C2(x) { this.x1 = x; this.x2 = x; this[1] = x; }\n"
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"var a2 = new A2();\n"
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"var b2_1 = new B2(a2), b2_2 = new B2(a2);\n"
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"var c2 = new C2(a2);");
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const v8::HeapSnapshot* snapshot_env2 =
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heap_profiler->TakeHeapSnapshot(v8_str("env2"));
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const v8::HeapGraphNode* global_env2 = GetGlobalObject(snapshot_env2);
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// Verify, that JS global object of env2 has '..2' properties.
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const v8::HeapGraphNode* a2_node =
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GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "a2");
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CHECK_NE(NULL, a2_node);
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CHECK_NE(
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NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_1"));
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CHECK_NE(
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NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_2"));
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CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "c2"));
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NamedEntriesDetector det;
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det.CheckAllReachables(const_cast<i::HeapEntry*>(
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reinterpret_cast<const i::HeapEntry*>(global_env2)));
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CHECK(det.has_A2);
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CHECK(det.has_B2);
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CHECK(det.has_C2);
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}
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TEST(HeapSnapshotObjectSizes) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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// -a-> X1 --a
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// x -b-> X2 <-|
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CompileRun(
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"function X(a, b) { this.a = a; this.b = b; }\n"
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"x = new X(new X(), new X());\n"
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"dummy = new X();\n"
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"(function() { x.a.a = x.b; })();");
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const v8::HeapSnapshot* snapshot =
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heap_profiler->TakeHeapSnapshot(v8_str("sizes"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* x =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "x");
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CHECK_NE(NULL, x);
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const v8::HeapGraphNode* x1 =
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GetProperty(x, v8::HeapGraphEdge::kProperty, "a");
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CHECK_NE(NULL, x1);
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const v8::HeapGraphNode* x2 =
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GetProperty(x, v8::HeapGraphEdge::kProperty, "b");
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CHECK_NE(NULL, x2);
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// Test sizes.
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CHECK_NE(0, x->GetSelfSize());
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CHECK_NE(0, x1->GetSelfSize());
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CHECK_NE(0, x2->GetSelfSize());
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}
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TEST(BoundFunctionInSnapshot) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function myFunction(a, b) { this.a = a; this.b = b; }\n"
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"function AAAAA() {}\n"
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"boundFunction = myFunction.bind(new AAAAA(), 20, new Number(12)); \n");
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const v8::HeapSnapshot* snapshot =
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heap_profiler->TakeHeapSnapshot(v8_str("sizes"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* f =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "boundFunction");
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CHECK(f);
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CHECK_EQ(v8::String::New("native_bind"), f->GetName());
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const v8::HeapGraphNode* bindings =
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GetProperty(f, v8::HeapGraphEdge::kInternal, "bindings");
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CHECK_NE(NULL, bindings);
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CHECK_EQ(v8::HeapGraphNode::kArray, bindings->GetType());
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CHECK_EQ(4, bindings->GetChildrenCount());
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const v8::HeapGraphNode* bound_this = GetProperty(
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f, v8::HeapGraphEdge::kShortcut, "bound_this");
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CHECK(bound_this);
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CHECK_EQ(v8::HeapGraphNode::kObject, bound_this->GetType());
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const v8::HeapGraphNode* bound_function = GetProperty(
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f, v8::HeapGraphEdge::kShortcut, "bound_function");
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CHECK(bound_function);
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CHECK_EQ(v8::HeapGraphNode::kClosure, bound_function->GetType());
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const v8::HeapGraphNode* bound_argument = GetProperty(
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f, v8::HeapGraphEdge::kShortcut, "bound_argument_1");
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CHECK(bound_argument);
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CHECK_EQ(v8::HeapGraphNode::kObject, bound_argument->GetType());
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}
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TEST(HeapSnapshotEntryChildren) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function A() { }\n"
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"a = new A;");
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const v8::HeapSnapshot* snapshot =
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heap_profiler->TakeHeapSnapshot(v8_str("children"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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for (int i = 0, count = global->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = global->GetChild(i);
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CHECK_EQ(global, prop->GetFromNode());
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}
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const v8::HeapGraphNode* a =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "a");
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CHECK_NE(NULL, a);
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for (int i = 0, count = a->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = a->GetChild(i);
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CHECK_EQ(a, prop->GetFromNode());
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}
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}
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TEST(HeapSnapshotCodeObjects) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function lazy(x) { return x - 1; }\n"
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"function compiled(x) { return x + 1; }\n"
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"var anonymous = (function() { return function() { return 0; } })();\n"
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"compiled(1)");
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const v8::HeapSnapshot* snapshot =
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heap_profiler->TakeHeapSnapshot(v8_str("code"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* compiled =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "compiled");
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CHECK_NE(NULL, compiled);
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CHECK_EQ(v8::HeapGraphNode::kClosure, compiled->GetType());
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const v8::HeapGraphNode* lazy =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "lazy");
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CHECK_NE(NULL, lazy);
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CHECK_EQ(v8::HeapGraphNode::kClosure, lazy->GetType());
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const v8::HeapGraphNode* anonymous =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "anonymous");
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CHECK_NE(NULL, anonymous);
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CHECK_EQ(v8::HeapGraphNode::kClosure, anonymous->GetType());
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v8::String::Utf8Value anonymous_name(anonymous->GetName());
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CHECK_EQ("", *anonymous_name);
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// Find references to code.
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const v8::HeapGraphNode* compiled_code =
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GetProperty(compiled, v8::HeapGraphEdge::kInternal, "shared");
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CHECK_NE(NULL, compiled_code);
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const v8::HeapGraphNode* lazy_code =
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GetProperty(lazy, v8::HeapGraphEdge::kInternal, "shared");
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CHECK_NE(NULL, lazy_code);
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// Verify that non-compiled code doesn't contain references to "x"
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// literal, while compiled code does. The scope info is stored in FixedArray
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// objects attached to the SharedFunctionInfo.
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bool compiled_references_x = false, lazy_references_x = false;
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for (int i = 0, count = compiled_code->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = compiled_code->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kArray) {
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if (HasString(node, "x")) {
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compiled_references_x = true;
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break;
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}
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}
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}
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for (int i = 0, count = lazy_code->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = lazy_code->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kArray) {
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if (HasString(node, "x")) {
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lazy_references_x = true;
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break;
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}
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}
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}
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CHECK(compiled_references_x);
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CHECK(!lazy_references_x);
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}
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TEST(HeapSnapshotHeapNumbers) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"a = 1; // a is Smi\n"
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"b = 2.5; // b is HeapNumber");
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const v8::HeapSnapshot* snapshot =
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heap_profiler->TakeHeapSnapshot(v8_str("numbers"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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CHECK_EQ(NULL, GetProperty(global, v8::HeapGraphEdge::kProperty, "a"));
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const v8::HeapGraphNode* b =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "b");
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CHECK_NE(NULL, b);
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CHECK_EQ(v8::HeapGraphNode::kHeapNumber, b->GetType());
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}
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TEST(HeapSnapshotSlicedString) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"parent_string = \"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789.\";"
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"child_string = parent_string.slice(100);");
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const v8::HeapSnapshot* snapshot =
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heap_profiler->TakeHeapSnapshot(v8_str("strings"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* parent_string =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "parent_string");
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CHECK_NE(NULL, parent_string);
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const v8::HeapGraphNode* child_string =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "child_string");
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CHECK_NE(NULL, child_string);
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const v8::HeapGraphNode* parent =
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GetProperty(child_string, v8::HeapGraphEdge::kInternal, "parent");
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CHECK_EQ(parent_string, parent);
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}
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TEST(HeapSnapshotInternalReferences) {
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v8::Isolate* isolate = v8::Isolate::GetCurrent();
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v8::HandleScope scope(isolate);
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v8::Local<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New();
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global_template->SetInternalFieldCount(2);
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LocalContext env(NULL, global_template);
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v8::Handle<v8::Object> global_proxy = env->Global();
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v8::Handle<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
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CHECK_EQ(2, global->InternalFieldCount());
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v8::Local<v8::Object> obj = v8::Object::New();
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global->SetInternalField(0, v8_num(17));
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global->SetInternalField(1, obj);
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v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
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const v8::HeapSnapshot* snapshot =
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heap_profiler->TakeHeapSnapshot(v8_str("internals"));
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const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
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// The first reference will not present, because it's a Smi.
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CHECK_EQ(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "0"));
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// The second reference is to an object.
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CHECK_NE(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "1"));
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}
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// Trying to introduce a check helper for uint32_t causes many
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// overloading ambiguities, so it seems easier just to cast
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// them to a signed type.
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#define CHECK_EQ_SNAPSHOT_OBJECT_ID(a, b) \
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CHECK_EQ(static_cast<int32_t>(a), static_cast<int32_t>(b))
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#define CHECK_NE_SNAPSHOT_OBJECT_ID(a, b) \
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CHECK((a) != (b)) // NOLINT
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TEST(HeapSnapshotAddressReuse) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function A() {}\n"
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"var a = [];\n"
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"for (var i = 0; i < 10000; ++i)\n"
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" a[i] = new A();\n");
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const v8::HeapSnapshot* snapshot1 =
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heap_profiler->TakeHeapSnapshot(v8_str("snapshot1"));
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v8::SnapshotObjectId maxId1 = snapshot1->GetMaxSnapshotJSObjectId();
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CompileRun(
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"for (var i = 0; i < 10000; ++i)\n"
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" a[i] = new A();\n");
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HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
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const v8::HeapSnapshot* snapshot2 =
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heap_profiler->TakeHeapSnapshot(v8_str("snapshot2"));
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const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
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const v8::HeapGraphNode* array_node =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK_NE(NULL, array_node);
|
|
int wrong_count = 0;
|
|
for (int i = 0, count = array_node->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = array_node->GetChild(i);
|
|
if (prop->GetType() != v8::HeapGraphEdge::kElement)
|
|
continue;
|
|
v8::SnapshotObjectId id = prop->GetToNode()->GetId();
|
|
if (id < maxId1)
|
|
++wrong_count;
|
|
}
|
|
CHECK_EQ(0, wrong_count);
|
|
}
|
|
|
|
|
|
TEST(HeapEntryIdsAndArrayShift) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function AnObject() {\n"
|
|
" this.first = 'first';\n"
|
|
" this.second = 'second';\n"
|
|
"}\n"
|
|
"var a = new Array();\n"
|
|
"for (var i = 0; i < 10; ++i)\n"
|
|
" a.push(new AnObject());\n");
|
|
const v8::HeapSnapshot* snapshot1 =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("s1"));
|
|
|
|
CompileRun(
|
|
"for (var i = 0; i < 1; ++i)\n"
|
|
" a.shift();\n");
|
|
|
|
HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
|
|
|
|
const v8::HeapSnapshot* snapshot2 =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("s2"));
|
|
|
|
const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1);
|
|
const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
|
|
CHECK_NE_SNAPSHOT_OBJECT_ID(0, global1->GetId());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(global1->GetId(), global2->GetId());
|
|
|
|
const v8::HeapGraphNode* a1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK_NE(NULL, a1);
|
|
const v8::HeapGraphNode* k1 =
|
|
GetProperty(a1, v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK_NE(NULL, k1);
|
|
const v8::HeapGraphNode* a2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK_NE(NULL, a2);
|
|
const v8::HeapGraphNode* k2 =
|
|
GetProperty(a2, v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK_NE(NULL, k2);
|
|
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(a1->GetId(), a2->GetId());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(k1->GetId(), k2->GetId());
|
|
}
|
|
|
|
TEST(HeapEntryIdsAndGC) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function A() {}\n"
|
|
"function B(x) { this.x = x; }\n"
|
|
"var a = new A();\n"
|
|
"var b = new B(a);");
|
|
v8::Local<v8::String> s1_str = v8_str("s1");
|
|
v8::Local<v8::String> s2_str = v8_str("s2");
|
|
const v8::HeapSnapshot* snapshot1 =
|
|
heap_profiler->TakeHeapSnapshot(s1_str);
|
|
|
|
HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
|
|
|
|
const v8::HeapSnapshot* snapshot2 =
|
|
heap_profiler->TakeHeapSnapshot(s2_str);
|
|
|
|
CHECK_GT(snapshot1->GetMaxSnapshotJSObjectId(), 7000);
|
|
CHECK(snapshot1->GetMaxSnapshotJSObjectId() <=
|
|
snapshot2->GetMaxSnapshotJSObjectId());
|
|
|
|
const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1);
|
|
const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
|
|
CHECK_NE_SNAPSHOT_OBJECT_ID(0, global1->GetId());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(global1->GetId(), global2->GetId());
|
|
const v8::HeapGraphNode* A1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "A");
|
|
CHECK_NE(NULL, A1);
|
|
const v8::HeapGraphNode* A2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "A");
|
|
CHECK_NE(NULL, A2);
|
|
CHECK_NE_SNAPSHOT_OBJECT_ID(0, A1->GetId());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(A1->GetId(), A2->GetId());
|
|
const v8::HeapGraphNode* B1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "B");
|
|
CHECK_NE(NULL, B1);
|
|
const v8::HeapGraphNode* B2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "B");
|
|
CHECK_NE(NULL, B2);
|
|
CHECK_NE_SNAPSHOT_OBJECT_ID(0, B1->GetId());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(B1->GetId(), B2->GetId());
|
|
const v8::HeapGraphNode* a1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK_NE(NULL, a1);
|
|
const v8::HeapGraphNode* a2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK_NE(NULL, a2);
|
|
CHECK_NE_SNAPSHOT_OBJECT_ID(0, a1->GetId());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(a1->GetId(), a2->GetId());
|
|
const v8::HeapGraphNode* b1 =
|
|
GetProperty(global1, v8::HeapGraphEdge::kProperty, "b");
|
|
CHECK_NE(NULL, b1);
|
|
const v8::HeapGraphNode* b2 =
|
|
GetProperty(global2, v8::HeapGraphEdge::kProperty, "b");
|
|
CHECK_NE(NULL, b2);
|
|
CHECK_NE_SNAPSHOT_OBJECT_ID(0, b1->GetId());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(b1->GetId(), b2->GetId());
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotRootPreservedAfterSorting) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("s"));
|
|
const v8::HeapGraphNode* root1 = snapshot->GetRoot();
|
|
const_cast<i::HeapSnapshot*>(reinterpret_cast<const i::HeapSnapshot*>(
|
|
snapshot))->GetSortedEntriesList();
|
|
const v8::HeapGraphNode* root2 = snapshot->GetRoot();
|
|
CHECK_EQ(root1, root2);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestJSONStream : public v8::OutputStream {
|
|
public:
|
|
TestJSONStream() : eos_signaled_(0), abort_countdown_(-1) {}
|
|
explicit TestJSONStream(int abort_countdown)
|
|
: eos_signaled_(0), abort_countdown_(abort_countdown) {}
|
|
virtual ~TestJSONStream() {}
|
|
virtual void EndOfStream() { ++eos_signaled_; }
|
|
virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) {
|
|
if (abort_countdown_ > 0) --abort_countdown_;
|
|
if (abort_countdown_ == 0) return kAbort;
|
|
CHECK_GT(chars_written, 0);
|
|
i::Vector<char> chunk = buffer_.AddBlock(chars_written, '\0');
|
|
i::OS::MemCopy(chunk.start(), buffer, chars_written);
|
|
return kContinue;
|
|
}
|
|
virtual WriteResult WriteUint32Chunk(uint32_t* buffer, int chars_written) {
|
|
ASSERT(false);
|
|
return kAbort;
|
|
}
|
|
void WriteTo(i::Vector<char> dest) { buffer_.WriteTo(dest); }
|
|
int eos_signaled() { return eos_signaled_; }
|
|
int size() { return buffer_.size(); }
|
|
|
|
private:
|
|
i::Collector<char> buffer_;
|
|
int eos_signaled_;
|
|
int abort_countdown_;
|
|
};
|
|
|
|
class AsciiResource: public v8::String::ExternalAsciiStringResource {
|
|
public:
|
|
explicit AsciiResource(i::Vector<char> string): data_(string.start()) {
|
|
length_ = string.length();
|
|
}
|
|
virtual const char* data() const { return data_; }
|
|
virtual size_t length() const { return length_; }
|
|
private:
|
|
const char* data_;
|
|
size_t length_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
TEST(HeapSnapshotJSONSerialization) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
#define STRING_LITERAL_FOR_TEST \
|
|
"\"String \\n\\r\\u0008\\u0081\\u0101\\u0801\\u8001\""
|
|
CompileRun(
|
|
"function A(s) { this.s = s; }\n"
|
|
"function B(x) { this.x = x; }\n"
|
|
"var a = new A(" STRING_LITERAL_FOR_TEST ");\n"
|
|
"var b = new B(a);");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("json"));
|
|
TestJSONStream stream;
|
|
snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
|
|
CHECK_GT(stream.size(), 0);
|
|
CHECK_EQ(1, stream.eos_signaled());
|
|
i::ScopedVector<char> json(stream.size());
|
|
stream.WriteTo(json);
|
|
|
|
// Verify that snapshot string is valid JSON.
|
|
AsciiResource json_res(json);
|
|
v8::Local<v8::String> json_string = v8::String::NewExternal(&json_res);
|
|
env->Global()->Set(v8_str("json_snapshot"), json_string);
|
|
v8::Local<v8::Value> snapshot_parse_result = CompileRun(
|
|
"var parsed = JSON.parse(json_snapshot); true;");
|
|
CHECK(!snapshot_parse_result.IsEmpty());
|
|
|
|
// Verify that snapshot object has required fields.
|
|
v8::Local<v8::Object> parsed_snapshot =
|
|
env->Global()->Get(v8_str("parsed"))->ToObject();
|
|
CHECK(parsed_snapshot->Has(v8_str("snapshot")));
|
|
CHECK(parsed_snapshot->Has(v8_str("nodes")));
|
|
CHECK(parsed_snapshot->Has(v8_str("edges")));
|
|
CHECK(parsed_snapshot->Has(v8_str("strings")));
|
|
|
|
// Get node and edge "member" offsets.
|
|
v8::Local<v8::Value> meta_analysis_result = CompileRun(
|
|
"var meta = parsed.snapshot.meta;\n"
|
|
"var edge_count_offset = meta.node_fields.indexOf('edge_count');\n"
|
|
"var node_fields_count = meta.node_fields.length;\n"
|
|
"var edge_fields_count = meta.edge_fields.length;\n"
|
|
"var edge_type_offset = meta.edge_fields.indexOf('type');\n"
|
|
"var edge_name_offset = meta.edge_fields.indexOf('name_or_index');\n"
|
|
"var edge_to_node_offset = meta.edge_fields.indexOf('to_node');\n"
|
|
"var property_type ="
|
|
" meta.edge_types[edge_type_offset].indexOf('property');\n"
|
|
"var shortcut_type ="
|
|
" meta.edge_types[edge_type_offset].indexOf('shortcut');\n"
|
|
"var node_count = parsed.nodes.length / node_fields_count;\n"
|
|
"var first_edge_indexes = parsed.first_edge_indexes = [];\n"
|
|
"for (var i = 0, first_edge_index = 0; i < node_count; ++i) {\n"
|
|
" first_edge_indexes[i] = first_edge_index;\n"
|
|
" first_edge_index += edge_fields_count *\n"
|
|
" parsed.nodes[i * node_fields_count + edge_count_offset];\n"
|
|
"}\n"
|
|
"first_edge_indexes[node_count] = first_edge_index;\n");
|
|
CHECK(!meta_analysis_result.IsEmpty());
|
|
|
|
// A helper function for processing encoded nodes.
|
|
CompileRun(
|
|
"function GetChildPosByProperty(pos, prop_name, prop_type) {\n"
|
|
" var nodes = parsed.nodes;\n"
|
|
" var edges = parsed.edges;\n"
|
|
" var strings = parsed.strings;\n"
|
|
" var node_ordinal = pos / node_fields_count;\n"
|
|
" for (var i = parsed.first_edge_indexes[node_ordinal],\n"
|
|
" count = parsed.first_edge_indexes[node_ordinal + 1];\n"
|
|
" i < count; i += edge_fields_count) {\n"
|
|
" if (edges[i + edge_type_offset] === prop_type\n"
|
|
" && strings[edges[i + edge_name_offset]] === prop_name)\n"
|
|
" return edges[i + edge_to_node_offset];\n"
|
|
" }\n"
|
|
" return null;\n"
|
|
"}\n");
|
|
// Get the string index using the path: <root> -> <global>.b.x.s
|
|
v8::Local<v8::Value> string_obj_pos_val = CompileRun(
|
|
"GetChildPosByProperty(\n"
|
|
" GetChildPosByProperty(\n"
|
|
" GetChildPosByProperty("
|
|
" parsed.edges[edge_fields_count + edge_to_node_offset],"
|
|
" \"b\", property_type),\n"
|
|
" \"x\", property_type),"
|
|
" \"s\", property_type)");
|
|
CHECK(!string_obj_pos_val.IsEmpty());
|
|
int string_obj_pos =
|
|
static_cast<int>(string_obj_pos_val->ToNumber()->Value());
|
|
v8::Local<v8::Object> nodes_array =
|
|
parsed_snapshot->Get(v8_str("nodes"))->ToObject();
|
|
int string_index = static_cast<int>(
|
|
nodes_array->Get(string_obj_pos + 1)->ToNumber()->Value());
|
|
CHECK_GT(string_index, 0);
|
|
v8::Local<v8::Object> strings_array =
|
|
parsed_snapshot->Get(v8_str("strings"))->ToObject();
|
|
v8::Local<v8::String> string = strings_array->Get(string_index)->ToString();
|
|
v8::Local<v8::String> ref_string =
|
|
CompileRun(STRING_LITERAL_FOR_TEST)->ToString();
|
|
#undef STRING_LITERAL_FOR_TEST
|
|
CHECK_EQ(*v8::String::Utf8Value(ref_string),
|
|
*v8::String::Utf8Value(string));
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotJSONSerializationAborting) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("abort"));
|
|
TestJSONStream stream(5);
|
|
snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
|
|
CHECK_GT(stream.size(), 0);
|
|
CHECK_EQ(0, stream.eos_signaled());
|
|
}
|
|
|
|
namespace {
|
|
|
|
class TestStatsStream : public v8::OutputStream {
|
|
public:
|
|
TestStatsStream()
|
|
: eos_signaled_(0),
|
|
updates_written_(0),
|
|
entries_count_(0),
|
|
entries_size_(0),
|
|
intervals_count_(0),
|
|
first_interval_index_(-1) { }
|
|
TestStatsStream(const TestStatsStream& stream)
|
|
: v8::OutputStream(stream),
|
|
eos_signaled_(stream.eos_signaled_),
|
|
updates_written_(stream.updates_written_),
|
|
entries_count_(stream.entries_count_),
|
|
entries_size_(stream.entries_size_),
|
|
intervals_count_(stream.intervals_count_),
|
|
first_interval_index_(stream.first_interval_index_) { }
|
|
virtual ~TestStatsStream() {}
|
|
virtual void EndOfStream() { ++eos_signaled_; }
|
|
virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) {
|
|
ASSERT(false);
|
|
return kAbort;
|
|
}
|
|
virtual WriteResult WriteHeapStatsChunk(v8::HeapStatsUpdate* buffer,
|
|
int updates_written) {
|
|
++intervals_count_;
|
|
ASSERT(updates_written);
|
|
updates_written_ += updates_written;
|
|
entries_count_ = 0;
|
|
if (first_interval_index_ == -1 && updates_written != 0)
|
|
first_interval_index_ = buffer[0].index;
|
|
for (int i = 0; i < updates_written; ++i) {
|
|
entries_count_ += buffer[i].count;
|
|
entries_size_ += buffer[i].size;
|
|
}
|
|
|
|
return kContinue;
|
|
}
|
|
int eos_signaled() { return eos_signaled_; }
|
|
int updates_written() { return updates_written_; }
|
|
uint32_t entries_count() const { return entries_count_; }
|
|
uint32_t entries_size() const { return entries_size_; }
|
|
int intervals_count() const { return intervals_count_; }
|
|
int first_interval_index() const { return first_interval_index_; }
|
|
|
|
private:
|
|
int eos_signaled_;
|
|
int updates_written_;
|
|
uint32_t entries_count_;
|
|
uint32_t entries_size_;
|
|
int intervals_count_;
|
|
int first_interval_index_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
static TestStatsStream GetHeapStatsUpdate(
|
|
v8::HeapProfiler* heap_profiler,
|
|
v8::SnapshotObjectId* object_id = NULL) {
|
|
TestStatsStream stream;
|
|
v8::SnapshotObjectId last_seen_id = heap_profiler->GetHeapStats(&stream);
|
|
if (object_id)
|
|
*object_id = last_seen_id;
|
|
CHECK_EQ(1, stream.eos_signaled());
|
|
return stream;
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotObjectsStats) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
heap_profiler->StartTrackingHeapObjects();
|
|
// We have to call GC 6 times. In other case the garbage will be
|
|
// the reason of flakiness.
|
|
for (int i = 0; i < 6; ++i) {
|
|
HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
|
|
}
|
|
|
|
v8::SnapshotObjectId initial_id;
|
|
{
|
|
// Single chunk of data expected in update. Initial data.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler,
|
|
&initial_id);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0, stats_update.entries_size());
|
|
CHECK_EQ(0, stats_update.first_interval_index());
|
|
}
|
|
|
|
// No data expected in update because nothing has happened.
|
|
v8::SnapshotObjectId same_id;
|
|
CHECK_EQ(0, GetHeapStatsUpdate(heap_profiler, &same_id).updates_written());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(initial_id, same_id);
|
|
|
|
{
|
|
v8::SnapshotObjectId additional_string_id;
|
|
v8::HandleScope inner_scope_1(env->GetIsolate());
|
|
v8_str("string1");
|
|
{
|
|
// Single chunk of data with one new entry expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler,
|
|
&additional_string_id);
|
|
CHECK_LT(same_id, additional_string_id);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0, stats_update.entries_size());
|
|
CHECK_EQ(1, stats_update.entries_count());
|
|
CHECK_EQ(2, stats_update.first_interval_index());
|
|
}
|
|
|
|
// No data expected in update because nothing happened.
|
|
v8::SnapshotObjectId last_id;
|
|
CHECK_EQ(0, GetHeapStatsUpdate(heap_profiler, &last_id).updates_written());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(additional_string_id, last_id);
|
|
|
|
{
|
|
v8::HandleScope inner_scope_2(env->GetIsolate());
|
|
v8_str("string2");
|
|
|
|
uint32_t entries_size;
|
|
{
|
|
v8::HandleScope inner_scope_3(env->GetIsolate());
|
|
v8_str("string3");
|
|
v8_str("string4");
|
|
|
|
{
|
|
// Single chunk of data with three new entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0, entries_size = stats_update.entries_size());
|
|
CHECK_EQ(3, stats_update.entries_count());
|
|
CHECK_EQ(4, stats_update.first_interval_index());
|
|
}
|
|
}
|
|
|
|
{
|
|
// Single chunk of data with two left entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_GT(entries_size, stats_update.entries_size());
|
|
CHECK_EQ(1, stats_update.entries_count());
|
|
// Two strings from forth interval were released.
|
|
CHECK_EQ(4, stats_update.first_interval_index());
|
|
}
|
|
}
|
|
|
|
{
|
|
// Single chunk of data with 0 left entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_EQ(0, stats_update.entries_size());
|
|
CHECK_EQ(0, stats_update.entries_count());
|
|
// The last string from forth interval was released.
|
|
CHECK_EQ(4, stats_update.first_interval_index());
|
|
}
|
|
}
|
|
{
|
|
// Single chunk of data with 0 left entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_EQ(0, stats_update.entries_size());
|
|
CHECK_EQ(0, stats_update.entries_count());
|
|
// The only string from the second interval was released.
|
|
CHECK_EQ(2, stats_update.first_interval_index());
|
|
}
|
|
|
|
v8::Local<v8::Array> array = v8::Array::New();
|
|
CHECK_EQ(0, array->Length());
|
|
// Force array's buffer allocation.
|
|
array->Set(2, v8_num(7));
|
|
|
|
uint32_t entries_size;
|
|
{
|
|
// Single chunk of data with 2 entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0, entries_size = stats_update.entries_size());
|
|
// They are the array and its buffer.
|
|
CHECK_EQ(2, stats_update.entries_count());
|
|
CHECK_EQ(8, stats_update.first_interval_index());
|
|
}
|
|
|
|
for (int i = 0; i < 100; ++i)
|
|
array->Set(i, v8_num(i));
|
|
|
|
{
|
|
// Single chunk of data with 1 entry expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
// The first interval was changed because old buffer was collected.
|
|
// The second interval was changed because new buffer was allocated.
|
|
CHECK_EQ(2, stats_update.updates_written());
|
|
CHECK_LT(entries_size, stats_update.entries_size());
|
|
CHECK_EQ(2, stats_update.entries_count());
|
|
CHECK_EQ(8, stats_update.first_interval_index());
|
|
}
|
|
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
|
|
static void CheckChildrenIds(const v8::HeapSnapshot* snapshot,
|
|
const v8::HeapGraphNode* node,
|
|
int level, int max_level) {
|
|
if (level > max_level) return;
|
|
CHECK_EQ(node, snapshot->GetNodeById(node->GetId()));
|
|
for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = node->GetChild(i);
|
|
const v8::HeapGraphNode* child =
|
|
snapshot->GetNodeById(prop->GetToNode()->GetId());
|
|
CHECK_EQ_SNAPSHOT_OBJECT_ID(prop->GetToNode()->GetId(), child->GetId());
|
|
CHECK_EQ(prop->GetToNode(), child);
|
|
CheckChildrenIds(snapshot, child, level + 1, max_level);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotGetNodeById) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("id"));
|
|
const v8::HeapGraphNode* root = snapshot->GetRoot();
|
|
CheckChildrenIds(snapshot, root, 0, 3);
|
|
// Check a big id, which should not exist yet.
|
|
CHECK_EQ(NULL, snapshot->GetNodeById(0x1000000UL));
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotGetSnapshotObjectId) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("globalObject = {};\n");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("get_snapshot_object_id"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* global_object =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "globalObject");
|
|
CHECK(global_object);
|
|
|
|
v8::Local<v8::Value> globalObjectHandle =
|
|
env->Global()->Get(v8::String::New("globalObject"));
|
|
CHECK(!globalObjectHandle.IsEmpty());
|
|
CHECK(globalObjectHandle->IsObject());
|
|
|
|
v8::SnapshotObjectId id = heap_profiler->GetObjectId(globalObjectHandle);
|
|
CHECK_NE(static_cast<int>(v8::HeapProfiler::kUnknownObjectId),
|
|
id);
|
|
CHECK_EQ(static_cast<int>(id), global_object->GetId());
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotUnknownSnapshotObjectId) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("globalObject = {};\n");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("unknown_object_id"));
|
|
const v8::HeapGraphNode* node =
|
|
snapshot->GetNodeById(v8::HeapProfiler::kUnknownObjectId);
|
|
CHECK_EQ(NULL, node);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestActivityControl : public v8::ActivityControl {
|
|
public:
|
|
explicit TestActivityControl(int abort_count)
|
|
: done_(0), total_(0), abort_count_(abort_count) {}
|
|
ControlOption ReportProgressValue(int done, int total) {
|
|
done_ = done;
|
|
total_ = total;
|
|
return --abort_count_ != 0 ? kContinue : kAbort;
|
|
}
|
|
int done() { return done_; }
|
|
int total() { return total_; }
|
|
|
|
private:
|
|
int done_;
|
|
int total_;
|
|
int abort_count_;
|
|
};
|
|
}
|
|
|
|
TEST(TakeHeapSnapshotAborting) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const int snapshots_count = heap_profiler->GetSnapshotCount();
|
|
TestActivityControl aborting_control(1);
|
|
const v8::HeapSnapshot* no_snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("abort"),
|
|
&aborting_control);
|
|
CHECK_EQ(NULL, no_snapshot);
|
|
CHECK_EQ(snapshots_count, heap_profiler->GetSnapshotCount());
|
|
CHECK_GT(aborting_control.total(), aborting_control.done());
|
|
|
|
TestActivityControl control(-1); // Don't abort.
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("full"),
|
|
&control);
|
|
CHECK_NE(NULL, snapshot);
|
|
CHECK_EQ(snapshots_count + 1, heap_profiler->GetSnapshotCount());
|
|
CHECK_EQ(control.total(), control.done());
|
|
CHECK_GT(control.total(), 0);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestRetainedObjectInfo : public v8::RetainedObjectInfo {
|
|
public:
|
|
TestRetainedObjectInfo(int hash,
|
|
const char* group_label,
|
|
const char* label,
|
|
intptr_t element_count = -1,
|
|
intptr_t size = -1)
|
|
: disposed_(false),
|
|
hash_(hash),
|
|
group_label_(group_label),
|
|
label_(label),
|
|
element_count_(element_count),
|
|
size_(size) {
|
|
instances.Add(this);
|
|
}
|
|
virtual ~TestRetainedObjectInfo() {}
|
|
virtual void Dispose() {
|
|
CHECK(!disposed_);
|
|
disposed_ = true;
|
|
}
|
|
virtual bool IsEquivalent(RetainedObjectInfo* other) {
|
|
return GetHash() == other->GetHash();
|
|
}
|
|
virtual intptr_t GetHash() { return hash_; }
|
|
virtual const char* GetGroupLabel() { return group_label_; }
|
|
virtual const char* GetLabel() { return label_; }
|
|
virtual intptr_t GetElementCount() { return element_count_; }
|
|
virtual intptr_t GetSizeInBytes() { return size_; }
|
|
bool disposed() { return disposed_; }
|
|
|
|
static v8::RetainedObjectInfo* WrapperInfoCallback(
|
|
uint16_t class_id, v8::Handle<v8::Value> wrapper) {
|
|
if (class_id == 1) {
|
|
if (wrapper->IsString()) {
|
|
v8::String::Utf8Value utf8(wrapper);
|
|
if (strcmp(*utf8, "AAA") == 0)
|
|
return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100);
|
|
else if (strcmp(*utf8, "BBB") == 0)
|
|
return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100);
|
|
}
|
|
} else if (class_id == 2) {
|
|
if (wrapper->IsString()) {
|
|
v8::String::Utf8Value utf8(wrapper);
|
|
if (strcmp(*utf8, "CCC") == 0)
|
|
return new TestRetainedObjectInfo(2, "ccc-group", "ccc");
|
|
}
|
|
}
|
|
CHECK(false);
|
|
return NULL;
|
|
}
|
|
|
|
static i::List<TestRetainedObjectInfo*> instances;
|
|
|
|
private:
|
|
bool disposed_;
|
|
int hash_;
|
|
const char* group_label_;
|
|
const char* label_;
|
|
intptr_t element_count_;
|
|
intptr_t size_;
|
|
};
|
|
|
|
|
|
i::List<TestRetainedObjectInfo*> TestRetainedObjectInfo::instances;
|
|
}
|
|
|
|
|
|
static const v8::HeapGraphNode* GetNode(const v8::HeapGraphNode* parent,
|
|
v8::HeapGraphNode::Type type,
|
|
const char* name) {
|
|
for (int i = 0, count = parent->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphNode* node = parent->GetChild(i)->GetToNode();
|
|
if (node->GetType() == type && strcmp(name,
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(node))->name()) == 0) {
|
|
return node;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotRetainedObjectInfo) {
|
|
LocalContext env;
|
|
v8::Isolate* isolate = env->GetIsolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
heap_profiler->SetWrapperClassInfoProvider(
|
|
1, TestRetainedObjectInfo::WrapperInfoCallback);
|
|
heap_profiler->SetWrapperClassInfoProvider(
|
|
2, TestRetainedObjectInfo::WrapperInfoCallback);
|
|
v8::Persistent<v8::String> p_AAA(isolate, v8_str("AAA"));
|
|
p_AAA.SetWrapperClassId(isolate, 1);
|
|
v8::Persistent<v8::String> p_BBB(isolate, v8_str("BBB"));
|
|
p_BBB.SetWrapperClassId(isolate, 1);
|
|
v8::Persistent<v8::String> p_CCC(isolate, v8_str("CCC"));
|
|
p_CCC.SetWrapperClassId(isolate, 2);
|
|
CHECK_EQ(0, TestRetainedObjectInfo::instances.length());
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("retained"));
|
|
|
|
CHECK_EQ(3, TestRetainedObjectInfo::instances.length());
|
|
for (int i = 0; i < TestRetainedObjectInfo::instances.length(); ++i) {
|
|
CHECK(TestRetainedObjectInfo::instances[i]->disposed());
|
|
delete TestRetainedObjectInfo::instances[i];
|
|
}
|
|
|
|
const v8::HeapGraphNode* native_group_aaa = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "aaa-group");
|
|
CHECK_NE(NULL, native_group_aaa);
|
|
CHECK_EQ(1, native_group_aaa->GetChildrenCount());
|
|
const v8::HeapGraphNode* aaa = GetNode(
|
|
native_group_aaa, v8::HeapGraphNode::kNative, "aaa / 100 entries");
|
|
CHECK_NE(NULL, aaa);
|
|
CHECK_EQ(2, aaa->GetChildrenCount());
|
|
|
|
const v8::HeapGraphNode* native_group_ccc = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "ccc-group");
|
|
const v8::HeapGraphNode* ccc = GetNode(
|
|
native_group_ccc, v8::HeapGraphNode::kNative, "ccc");
|
|
CHECK_NE(NULL, ccc);
|
|
|
|
const v8::HeapGraphNode* n_AAA = GetNode(
|
|
aaa, v8::HeapGraphNode::kString, "AAA");
|
|
CHECK_NE(NULL, n_AAA);
|
|
const v8::HeapGraphNode* n_BBB = GetNode(
|
|
aaa, v8::HeapGraphNode::kString, "BBB");
|
|
CHECK_NE(NULL, n_BBB);
|
|
CHECK_EQ(1, ccc->GetChildrenCount());
|
|
const v8::HeapGraphNode* n_CCC = GetNode(
|
|
ccc, v8::HeapGraphNode::kString, "CCC");
|
|
CHECK_NE(NULL, n_CCC);
|
|
|
|
CHECK_EQ(aaa, GetProperty(n_AAA, v8::HeapGraphEdge::kInternal, "native"));
|
|
CHECK_EQ(aaa, GetProperty(n_BBB, v8::HeapGraphEdge::kInternal, "native"));
|
|
CHECK_EQ(ccc, GetProperty(n_CCC, v8::HeapGraphEdge::kInternal, "native"));
|
|
}
|
|
|
|
|
|
class GraphWithImplicitRefs {
|
|
public:
|
|
static const int kObjectsCount = 4;
|
|
explicit GraphWithImplicitRefs(LocalContext* env) {
|
|
CHECK_EQ(NULL, instance_);
|
|
instance_ = this;
|
|
isolate_ = (*env)->GetIsolate();
|
|
for (int i = 0; i < kObjectsCount; i++) {
|
|
objects_[i].Reset(isolate_, v8::Object::New());
|
|
}
|
|
(*env)->Global()->Set(v8_str("root_object"),
|
|
v8::Local<v8::Value>::New(isolate_, objects_[0]));
|
|
}
|
|
~GraphWithImplicitRefs() {
|
|
instance_ = NULL;
|
|
}
|
|
|
|
static void gcPrologue(v8::GCType type, v8::GCCallbackFlags flags) {
|
|
instance_->AddImplicitReferences();
|
|
}
|
|
|
|
private:
|
|
void AddImplicitReferences() {
|
|
// 0 -> 1
|
|
isolate_->SetObjectGroupId(objects_[0],
|
|
v8::UniqueId(1));
|
|
isolate_->SetReferenceFromGroup(
|
|
v8::UniqueId(1), objects_[1]);
|
|
// Adding two more references: 1 -> 2, 1 -> 3
|
|
isolate_->SetReference(objects_[1].As<v8::Object>(),
|
|
objects_[2]);
|
|
isolate_->SetReference(objects_[1].As<v8::Object>(),
|
|
objects_[3]);
|
|
}
|
|
|
|
v8::Persistent<v8::Value> objects_[kObjectsCount];
|
|
static GraphWithImplicitRefs* instance_;
|
|
v8::Isolate* isolate_;
|
|
};
|
|
|
|
GraphWithImplicitRefs* GraphWithImplicitRefs::instance_ = NULL;
|
|
|
|
|
|
TEST(HeapSnapshotImplicitReferences) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
GraphWithImplicitRefs graph(&env);
|
|
v8::V8::AddGCPrologueCallback(&GraphWithImplicitRefs::gcPrologue);
|
|
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("implicit_refs"));
|
|
|
|
const v8::HeapGraphNode* global_object = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* obj0 = GetProperty(
|
|
global_object, v8::HeapGraphEdge::kProperty, "root_object");
|
|
CHECK(obj0);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, obj0->GetType());
|
|
const v8::HeapGraphNode* obj1 = GetProperty(
|
|
obj0, v8::HeapGraphEdge::kInternal, "native");
|
|
CHECK(obj1);
|
|
int implicit_targets_count = 0;
|
|
for (int i = 0, count = obj1->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = obj1->GetChild(i);
|
|
v8::String::Utf8Value prop_name(prop->GetName());
|
|
if (prop->GetType() == v8::HeapGraphEdge::kInternal &&
|
|
strcmp("native", *prop_name) == 0) {
|
|
++implicit_targets_count;
|
|
}
|
|
}
|
|
CHECK_EQ(2, implicit_targets_count);
|
|
v8::V8::RemoveGCPrologueCallback(&GraphWithImplicitRefs::gcPrologue);
|
|
}
|
|
|
|
|
|
TEST(DeleteAllHeapSnapshots) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK_NE(NULL, heap_profiler->TakeHeapSnapshot(v8_str("1")));
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK_NE(NULL, heap_profiler->TakeHeapSnapshot(v8_str("1")));
|
|
CHECK_NE(NULL, heap_profiler->TakeHeapSnapshot(v8_str("2")));
|
|
CHECK_EQ(2, heap_profiler->GetSnapshotCount());
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
}
|
|
|
|
|
|
static const v8::HeapSnapshot* FindHeapSnapshot(v8::HeapProfiler* profiler,
|
|
unsigned uid) {
|
|
int length = profiler->GetSnapshotCount();
|
|
for (int i = 0; i < length; i++) {
|
|
const v8::HeapSnapshot* snapshot = profiler->GetHeapSnapshot(i);
|
|
if (snapshot->GetUid() == uid) {
|
|
return snapshot;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
TEST(DeleteHeapSnapshot) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
const v8::HeapSnapshot* s1 =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("1"));
|
|
CHECK_NE(NULL, s1);
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
unsigned uid1 = s1->GetUid();
|
|
CHECK_EQ(s1, FindHeapSnapshot(heap_profiler, uid1));
|
|
const_cast<v8::HeapSnapshot*>(s1)->Delete();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK_EQ(NULL, FindHeapSnapshot(heap_profiler, uid1));
|
|
|
|
const v8::HeapSnapshot* s2 =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("2"));
|
|
CHECK_NE(NULL, s2);
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
unsigned uid2 = s2->GetUid();
|
|
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2));
|
|
CHECK_EQ(s2, FindHeapSnapshot(heap_profiler, uid2));
|
|
const v8::HeapSnapshot* s3 =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("3"));
|
|
CHECK_NE(NULL, s3);
|
|
CHECK_EQ(2, heap_profiler->GetSnapshotCount());
|
|
unsigned uid3 = s3->GetUid();
|
|
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3));
|
|
CHECK_EQ(s3, FindHeapSnapshot(heap_profiler, uid3));
|
|
const_cast<v8::HeapSnapshot*>(s2)->Delete();
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
CHECK_EQ(NULL, FindHeapSnapshot(heap_profiler, uid2));
|
|
CHECK_EQ(s3, FindHeapSnapshot(heap_profiler, uid3));
|
|
const_cast<v8::HeapSnapshot*>(s3)->Delete();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK_EQ(NULL, FindHeapSnapshot(heap_profiler, uid3));
|
|
}
|
|
|
|
|
|
class NameResolver : public v8::HeapProfiler::ObjectNameResolver {
|
|
public:
|
|
virtual const char* GetName(v8::Handle<v8::Object> object) {
|
|
return "Global object name";
|
|
}
|
|
};
|
|
|
|
TEST(GlobalObjectName) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("document = { URL:\"abcdefgh\" };");
|
|
|
|
NameResolver name_resolver;
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("document"),
|
|
NULL,
|
|
&name_resolver);
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
CHECK_EQ("Object / Global object name" ,
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(global))->name());
|
|
}
|
|
|
|
|
|
TEST(NoHandleLeaks) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("document = { URL:\"abcdefgh\" };");
|
|
|
|
v8::Handle<v8::String> name(v8_str("leakz"));
|
|
i::Isolate* isolate = i::Isolate::Current();
|
|
int count_before = i::HandleScope::NumberOfHandles(isolate);
|
|
heap_profiler->TakeHeapSnapshot(name);
|
|
int count_after = i::HandleScope::NumberOfHandles(isolate);
|
|
CHECK_EQ(count_before, count_after);
|
|
}
|
|
|
|
|
|
TEST(NodesIteration) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("iteration"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
// Verify that we can find this object by iteration.
|
|
const int nodes_count = snapshot->GetNodesCount();
|
|
int count = 0;
|
|
for (int i = 0; i < nodes_count; ++i) {
|
|
if (snapshot->GetNode(i) == global)
|
|
++count;
|
|
}
|
|
CHECK_EQ(1, count);
|
|
}
|
|
|
|
|
|
TEST(GetHeapValue) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("a = { s_prop: \'value\', n_prop: 0.1 };");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("value"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global->GetHeapValue()->IsObject());
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
CHECK(js_global == global->GetHeapValue());
|
|
const v8::HeapGraphNode* obj = GetProperty(
|
|
global, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(obj->GetHeapValue()->IsObject());
|
|
v8::Local<v8::Object> js_obj = js_global->Get(v8_str("a")).As<v8::Object>();
|
|
CHECK(js_obj == obj->GetHeapValue());
|
|
const v8::HeapGraphNode* s_prop =
|
|
GetProperty(obj, v8::HeapGraphEdge::kProperty, "s_prop");
|
|
v8::Local<v8::String> js_s_prop =
|
|
js_obj->Get(v8_str("s_prop")).As<v8::String>();
|
|
CHECK(js_s_prop == s_prop->GetHeapValue());
|
|
const v8::HeapGraphNode* n_prop =
|
|
GetProperty(obj, v8::HeapGraphEdge::kProperty, "n_prop");
|
|
v8::Local<v8::Number> js_n_prop =
|
|
js_obj->Get(v8_str("n_prop")).As<v8::Number>();
|
|
CHECK(js_n_prop->NumberValue() == n_prop->GetHeapValue()->NumberValue());
|
|
}
|
|
|
|
|
|
TEST(GetHeapValueForDeletedObject) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// It is impossible to delete a global property, so we are about to delete a
|
|
// property of the "a" object. Also, the "p" object can't be an empty one
|
|
// because the empty object is static and isn't actually deleted.
|
|
CompileRun("a = { p: { r: {} } };");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* obj = GetProperty(
|
|
global, v8::HeapGraphEdge::kProperty, "a");
|
|
const v8::HeapGraphNode* prop = GetProperty(
|
|
obj, v8::HeapGraphEdge::kProperty, "p");
|
|
{
|
|
// Perform the check inside a nested local scope to avoid creating a
|
|
// reference to the object we are deleting.
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
CHECK(prop->GetHeapValue()->IsObject());
|
|
}
|
|
CompileRun("delete a.p;");
|
|
CHECK(prop->GetHeapValue()->IsUndefined());
|
|
}
|
|
|
|
|
|
static int StringCmp(const char* ref, i::String* act) {
|
|
i::SmartArrayPointer<char> s_act = act->ToCString();
|
|
int result = strcmp(ref, *s_act);
|
|
if (result != 0)
|
|
fprintf(stderr, "Expected: \"%s\", Actual: \"%s\"\n", ref, *s_act);
|
|
return result;
|
|
}
|
|
|
|
|
|
TEST(GetConstructorName) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
CompileRun(
|
|
"function Constructor1() {};\n"
|
|
"var obj1 = new Constructor1();\n"
|
|
"var Constructor2 = function() {};\n"
|
|
"var obj2 = new Constructor2();\n"
|
|
"var obj3 = {};\n"
|
|
"obj3.constructor = function Constructor3() {};\n"
|
|
"var obj4 = {};\n"
|
|
"// Slow properties\n"
|
|
"for (var i=0; i<2000; ++i) obj4[\"p\" + i] = i;\n"
|
|
"obj4.constructor = function Constructor4() {};\n"
|
|
"var obj5 = {};\n"
|
|
"var obj6 = {};\n"
|
|
"obj6.constructor = 6;");
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
v8::Local<v8::Object> obj1 = js_global->Get(v8_str("obj1")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj1 = v8::Utils::OpenHandle(*obj1);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor1", i::V8HeapExplorer::GetConstructorName(*js_obj1)));
|
|
v8::Local<v8::Object> obj2 = js_global->Get(v8_str("obj2")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj2 = v8::Utils::OpenHandle(*obj2);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor2", i::V8HeapExplorer::GetConstructorName(*js_obj2)));
|
|
v8::Local<v8::Object> obj3 = js_global->Get(v8_str("obj3")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj3 = v8::Utils::OpenHandle(*obj3);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor3", i::V8HeapExplorer::GetConstructorName(*js_obj3)));
|
|
v8::Local<v8::Object> obj4 = js_global->Get(v8_str("obj4")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj4 = v8::Utils::OpenHandle(*obj4);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor4", i::V8HeapExplorer::GetConstructorName(*js_obj4)));
|
|
v8::Local<v8::Object> obj5 = js_global->Get(v8_str("obj5")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj5 = v8::Utils::OpenHandle(*obj5);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Object", i::V8HeapExplorer::GetConstructorName(*js_obj5)));
|
|
v8::Local<v8::Object> obj6 = js_global->Get(v8_str("obj6")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj6 = v8::Utils::OpenHandle(*obj6);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Object", i::V8HeapExplorer::GetConstructorName(*js_obj6)));
|
|
}
|
|
|
|
|
|
TEST(FastCaseAccessors) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("var obj1 = {};\n"
|
|
"obj1.__defineGetter__('propWithGetter', function Y() {\n"
|
|
" return 42;\n"
|
|
"});\n"
|
|
"obj1.__defineSetter__('propWithSetter', function Z(value) {\n"
|
|
" return this.value_ = value;\n"
|
|
"});\n");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("fastCaseAccessors"));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
const v8::HeapGraphNode* obj1 =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "obj1");
|
|
CHECK_NE(NULL, obj1);
|
|
const v8::HeapGraphNode* func;
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithGetter");
|
|
CHECK_NE(NULL, func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithGetter");
|
|
CHECK_EQ(NULL, func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithSetter");
|
|
CHECK_NE(NULL, func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithSetter");
|
|
CHECK_EQ(NULL, func);
|
|
}
|
|
|
|
|
|
TEST(SlowCaseAccessors) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("var obj1 = {};\n"
|
|
"for (var i = 0; i < 100; ++i) obj1['z' + i] = {};"
|
|
"obj1.__defineGetter__('propWithGetter', function Y() {\n"
|
|
" return 42;\n"
|
|
"});\n"
|
|
"obj1.__defineSetter__('propWithSetter', function Z(value) {\n"
|
|
" return this.value_ = value;\n"
|
|
"});\n");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("slowCaseAccessors"));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
const v8::HeapGraphNode* obj1 =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "obj1");
|
|
CHECK_NE(NULL, obj1);
|
|
const v8::HeapGraphNode* func;
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithGetter");
|
|
CHECK_NE(NULL, func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithGetter");
|
|
CHECK_EQ(NULL, func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithSetter");
|
|
CHECK_NE(NULL, func);
|
|
func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithSetter");
|
|
CHECK_EQ(NULL, func);
|
|
}
|
|
|
|
|
|
TEST(HiddenPropertiesFastCase) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function C(x) { this.a = this; this.b = x; }\n"
|
|
"c = new C(2012);\n");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("HiddenPropertiesFastCase1"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* c =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "c");
|
|
CHECK_NE(NULL, c);
|
|
const v8::HeapGraphNode* hidden_props =
|
|
GetProperty(c, v8::HeapGraphEdge::kInternal, "hidden_properties");
|
|
CHECK_EQ(NULL, hidden_props);
|
|
|
|
v8::Handle<v8::Value> cHandle = env->Global()->Get(v8::String::New("c"));
|
|
CHECK(!cHandle.IsEmpty() && cHandle->IsObject());
|
|
cHandle->ToObject()->SetHiddenValue(v8_str("key"), v8_str("val"));
|
|
|
|
snapshot = heap_profiler->TakeHeapSnapshot(
|
|
v8_str("HiddenPropertiesFastCase2"));
|
|
global = GetGlobalObject(snapshot);
|
|
c = GetProperty(global, v8::HeapGraphEdge::kProperty, "c");
|
|
CHECK_NE(NULL, c);
|
|
hidden_props = GetProperty(c, v8::HeapGraphEdge::kInternal,
|
|
"hidden_properties");
|
|
CHECK_NE(NULL, hidden_props);
|
|
}
|
|
|
|
bool HasWeakEdge(const v8::HeapGraphNode* node) {
|
|
for (int i = 0; i < node->GetChildrenCount(); ++i) {
|
|
const v8::HeapGraphEdge* handle_edge = node->GetChild(i);
|
|
if (handle_edge->GetType() == v8::HeapGraphEdge::kWeak) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
bool HasWeakGlobalHandle() {
|
|
v8::Isolate* isolate = v8::Isolate::GetCurrent();
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("weaks"));
|
|
const v8::HeapGraphNode* gc_roots = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kObject, "(GC roots)");
|
|
CHECK_NE(NULL, gc_roots);
|
|
const v8::HeapGraphNode* global_handles = GetNode(
|
|
gc_roots, v8::HeapGraphNode::kObject, "(Global handles)");
|
|
CHECK_NE(NULL, global_handles);
|
|
return HasWeakEdge(global_handles);
|
|
}
|
|
|
|
|
|
static void PersistentHandleCallback(v8::Isolate* isolate,
|
|
v8::Persistent<v8::Value>* handle,
|
|
void*) {
|
|
handle->Dispose(isolate);
|
|
}
|
|
|
|
|
|
TEST(WeakGlobalHandle) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
CHECK(!HasWeakGlobalHandle());
|
|
|
|
v8::Persistent<v8::Object> handle(env->GetIsolate(), v8::Object::New());
|
|
handle.MakeWeak<v8::Value, void>(NULL, PersistentHandleCallback);
|
|
|
|
CHECK(HasWeakGlobalHandle());
|
|
}
|
|
|
|
|
|
TEST(WeakNativeContextRefs) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("weaks"));
|
|
const v8::HeapGraphNode* gc_roots = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kObject, "(GC roots)");
|
|
CHECK_NE(NULL, gc_roots);
|
|
const v8::HeapGraphNode* global_handles = GetNode(
|
|
gc_roots, v8::HeapGraphNode::kObject, "(Global handles)");
|
|
CHECK_NE(NULL, global_handles);
|
|
const v8::HeapGraphNode* native_context = GetNode(
|
|
global_handles, v8::HeapGraphNode::kHidden, "system / NativeContext");
|
|
CHECK_NE(NULL, native_context);
|
|
CHECK(HasWeakEdge(native_context));
|
|
}
|
|
|
|
|
|
TEST(SfiAndJsFunctionWeakRefs) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"fun = (function (x) { return function () { return x + 1; } })(1);");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("fun"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
const v8::HeapGraphNode* fun =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "fun");
|
|
CHECK(HasWeakEdge(fun));
|
|
const v8::HeapGraphNode* shared =
|
|
GetProperty(fun, v8::HeapGraphEdge::kInternal, "shared");
|
|
CHECK(HasWeakEdge(shared));
|
|
}
|
|
|
|
|
|
#ifdef ENABLE_DEBUGGER_SUPPORT
|
|
TEST(NoDebugObjectInSnapshot) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
v8::internal::Isolate::Current()->debug()->Load();
|
|
CompileRun("foo = {};");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
|
|
const v8::HeapGraphNode* root = snapshot->GetRoot();
|
|
int globals_count = 0;
|
|
for (int i = 0; i < root->GetChildrenCount(); ++i) {
|
|
const v8::HeapGraphEdge* edge = root->GetChild(i);
|
|
if (edge->GetType() == v8::HeapGraphEdge::kShortcut) {
|
|
++globals_count;
|
|
const v8::HeapGraphNode* global = edge->GetToNode();
|
|
const v8::HeapGraphNode* foo =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "foo");
|
|
CHECK_NE(NULL, foo);
|
|
}
|
|
}
|
|
CHECK_EQ(1, globals_count);
|
|
}
|
|
#endif // ENABLE_DEBUGGER_SUPPORT
|
|
|
|
|
|
TEST(AllStrongGcRootsHaveNames) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("foo = {};");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
|
|
const v8::HeapGraphNode* gc_roots = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kObject, "(GC roots)");
|
|
CHECK_NE(NULL, gc_roots);
|
|
const v8::HeapGraphNode* strong_roots = GetNode(
|
|
gc_roots, v8::HeapGraphNode::kObject, "(Strong roots)");
|
|
CHECK_NE(NULL, strong_roots);
|
|
for (int i = 0; i < strong_roots->GetChildrenCount(); ++i) {
|
|
const v8::HeapGraphEdge* edge = strong_roots->GetChild(i);
|
|
CHECK_EQ(v8::HeapGraphEdge::kInternal, edge->GetType());
|
|
v8::String::Utf8Value name(edge->GetName());
|
|
CHECK(isalpha(**name));
|
|
}
|
|
}
|
|
|
|
|
|
TEST(NoRefsToNonEssentialEntries) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("global_object = {};\n");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* global_object =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "global_object");
|
|
CHECK_NE(NULL, global_object);
|
|
const v8::HeapGraphNode* properties =
|
|
GetProperty(global_object, v8::HeapGraphEdge::kInternal, "properties");
|
|
CHECK_EQ(NULL, properties);
|
|
const v8::HeapGraphNode* elements =
|
|
GetProperty(global_object, v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK_EQ(NULL, elements);
|
|
}
|
|
|
|
|
|
TEST(MapHasDescriptorsAndTransitions) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("obj = { a: 10 };\n");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* global_object =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "obj");
|
|
CHECK_NE(NULL, global_object);
|
|
|
|
const v8::HeapGraphNode* map =
|
|
GetProperty(global_object, v8::HeapGraphEdge::kInternal, "map");
|
|
CHECK_NE(NULL, map);
|
|
const v8::HeapGraphNode* own_descriptors = GetProperty(
|
|
map, v8::HeapGraphEdge::kInternal, "descriptors");
|
|
CHECK_NE(NULL, own_descriptors);
|
|
const v8::HeapGraphNode* own_transitions = GetProperty(
|
|
map, v8::HeapGraphEdge::kInternal, "transitions");
|
|
CHECK_EQ(NULL, own_transitions);
|
|
}
|
|
|
|
|
|
TEST(ManyLocalsInSharedContext) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
int num_objects = 6000;
|
|
CompileRun(
|
|
"var n = 6000;"
|
|
"var result = [];"
|
|
"result.push('(function outer() {');"
|
|
"for (var i = 0; i < n; i++) {"
|
|
" var f = 'function f_' + i + '() { ';"
|
|
" if (i > 0)"
|
|
" f += 'f_' + (i - 1) + '();';"
|
|
" f += ' }';"
|
|
" result.push(f);"
|
|
"}"
|
|
"result.push('return f_' + (n - 1) + ';');"
|
|
"result.push('})()');"
|
|
"var ok = eval(result.join('\\n'));");
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
const v8::HeapGraphNode* ok_object =
|
|
GetProperty(global, v8::HeapGraphEdge::kProperty, "ok");
|
|
CHECK_NE(NULL, ok_object);
|
|
const v8::HeapGraphNode* context_object =
|
|
GetProperty(ok_object, v8::HeapGraphEdge::kInternal, "context");
|
|
CHECK_NE(NULL, context_object);
|
|
// Check the objects are not duplicated in the context.
|
|
CHECK_EQ(v8::internal::Context::MIN_CONTEXT_SLOTS + num_objects - 1,
|
|
context_object->GetChildrenCount());
|
|
// Check all the objects have got their names.
|
|
// ... well check just every 8th because otherwise it's too slow in debug.
|
|
for (int i = 0; i < num_objects - 1; i += 8) {
|
|
i::EmbeddedVector<char, 100> var_name;
|
|
i::OS::SNPrintF(var_name, "f_%d", i);
|
|
const v8::HeapGraphNode* f_object = GetProperty(
|
|
context_object, v8::HeapGraphEdge::kContextVariable, var_name.start());
|
|
CHECK_NE(NULL, f_object);
|
|
}
|
|
}
|