v8/src/v8.h
sanjoy@chromium.org 98db16d94f Progress towards making Zones independent of Isolates and Threads.
This CL changes some parts of the code to explicitly pass around a
Zone.  Not passing in a zone is okay too (in fact most of v8 still
doesn't), but that may incur a TLS lookup.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10443114

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-06-04 14:42:58 +00:00

153 lines
5.4 KiB
C++

// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Top include for all V8 .cc files.
//
#ifndef V8_V8_H_
#define V8_V8_H_
#if defined(GOOGLE3)
// Google3 special flag handling.
#if defined(DEBUG) && defined(NDEBUG)
// V8 only uses DEBUG and whenever it is set we are building a debug
// version of V8. We do not use NDEBUG and simply undef it here for
// consistency.
#undef NDEBUG
#endif
#endif // defined(GOOGLE3)
// V8 only uses DEBUG, but included external files
// may use NDEBUG - make sure they are consistent.
#if defined(DEBUG) && defined(NDEBUG)
#error both DEBUG and NDEBUG are set
#endif
// Basic includes
#include "../include/v8.h"
#include "v8globals.h"
#include "v8checks.h"
#include "allocation.h"
#include "v8utils.h"
#include "flags.h"
// Objects & heap
#include "objects-inl.h"
#include "spaces-inl.h"
#include "heap-inl.h"
#include "incremental-marking-inl.h"
#include "mark-compact-inl.h"
#include "log-inl.h"
#include "cpu-profiler-inl.h"
#include "handles-inl.h"
#include "zone-inl.h"
namespace v8 {
namespace internal {
class Deserializer;
class V8 : public AllStatic {
public:
// Global actions.
// If Initialize is called with des == NULL, the initial state is
// created from scratch. If a non-null Deserializer is given, the
// initial state is created by reading the deserialized data into an
// empty heap.
static bool Initialize(Deserializer* des);
static void TearDown();
static bool IsRunning() { return is_running_; }
static bool UseCrankshaft() { return use_crankshaft_; }
// To be dead you have to have lived
// TODO(isolates): move IsDead to Isolate.
static bool IsDead() { return has_fatal_error_ || has_been_disposed_; }
static void SetFatalError();
// Report process out of memory. Implementation found in api.cc.
static void FatalProcessOutOfMemory(const char* location,
bool take_snapshot = false);
// Allows an entropy source to be provided for use in random number
// generation.
static void SetEntropySource(EntropySource source);
// Support for return-address rewriting profilers.
static void SetReturnAddressLocationResolver(
ReturnAddressLocationResolver resolver);
// Random number generation support. Not cryptographically safe.
static uint32_t Random(Context* context);
// We use random numbers internally in memory allocation and in the
// compilers for security. In order to prevent information leaks we
// use a separate random state for internal random number
// generation.
static uint32_t RandomPrivate(Isolate* isolate);
static Object* FillHeapNumberWithRandom(Object* heap_number,
Context* context);
// Idle notification directly from the API.
static bool IdleNotification(int hint);
static void AddCallCompletedCallback(CallCompletedCallback callback);
static void RemoveCallCompletedCallback(CallCompletedCallback callback);
static void FireCallCompletedCallback(Isolate* isolate);
private:
static void InitializeOncePerProcessImpl();
static void InitializeOncePerProcess();
// True if engine is currently running
static bool is_running_;
// True if V8 has ever been run
static bool has_been_set_up_;
// True if error has been signaled for current engine
// (reset to false if engine is restarted)
static bool has_fatal_error_;
// True if engine has been shut down
// (reset if engine is restarted)
static bool has_been_disposed_;
// True if we are using the crankshaft optimizing compiler.
static bool use_crankshaft_;
// List of callbacks when a Call completes.
static List<CallCompletedCallback>* call_completed_callbacks_;
};
// JavaScript defines two kinds of 'nil'.
enum NilValue { kNullValue, kUndefinedValue };
// JavaScript defines two kinds of equality.
enum EqualityKind { kStrictEquality, kNonStrictEquality };
} } // namespace v8::internal
namespace i = v8::internal;
#endif // V8_V8_H_