88a842d628
R=svenpanne@chromium.org TEST=cctest/test-api/InitializeAndDispose Review URL: https://codereview.chromium.org/504093002 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23401 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
124 lines
2.9 KiB
C++
124 lines
2.9 KiB
C++
// Copyright 2012 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/v8.h"
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#include "src/assembler.h"
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#include "src/base/once.h"
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#include "src/base/platform/platform.h"
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#include "src/bootstrapper.h"
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#include "src/compiler/pipeline.h"
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#include "src/debug.h"
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#include "src/deoptimizer.h"
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#include "src/elements.h"
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#include "src/frames.h"
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#include "src/heap/store-buffer.h"
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#include "src/heap-profiler.h"
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#include "src/hydrogen.h"
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#include "src/isolate.h"
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#include "src/lithium-allocator.h"
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#include "src/objects.h"
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#include "src/runtime-profiler.h"
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#include "src/sampler.h"
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#include "src/serialize.h"
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namespace v8 {
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namespace internal {
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V8_DECLARE_ONCE(init_once);
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v8::ArrayBuffer::Allocator* V8::array_buffer_allocator_ = NULL;
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v8::Platform* V8::platform_ = NULL;
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bool V8::Initialize(Deserializer* des) {
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InitializeOncePerProcess();
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Isolate* isolate = Isolate::UncheckedCurrent();
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if (isolate == NULL) return true;
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if (isolate->IsDead()) return false;
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if (isolate->IsInitialized()) return true;
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return isolate->Init(des);
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}
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void V8::TearDown() {
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Bootstrapper::TearDownExtensions();
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ElementsAccessor::TearDown();
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LOperand::TearDownCaches();
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compiler::Pipeline::TearDown();
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ExternalReference::TearDownMathExpData();
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RegisteredExtension::UnregisterAll();
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Isolate::GlobalTearDown();
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Sampler::TearDown();
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FlagList::ResetAllFlags(); // Frees memory held by string arguments.
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}
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void V8::SetReturnAddressLocationResolver(
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ReturnAddressLocationResolver resolver) {
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StackFrame::SetReturnAddressLocationResolver(resolver);
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}
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void V8::InitializeOncePerProcessImpl() {
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FlagList::EnforceFlagImplications();
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if (FLAG_predictable && FLAG_random_seed == 0) {
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// Avoid random seeds in predictable mode.
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FLAG_random_seed = 12347;
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}
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if (FLAG_stress_compaction) {
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FLAG_force_marking_deque_overflows = true;
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FLAG_gc_global = true;
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FLAG_max_semi_space_size = 1;
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}
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base::OS::Initialize(FLAG_random_seed, FLAG_hard_abort, FLAG_gc_fake_mmap);
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Sampler::SetUp();
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CpuFeatures::Probe(false);
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init_memcopy_functions();
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// The custom exp implementation needs 16KB of lookup data; initialize it
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// on demand.
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init_fast_sqrt_function();
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#ifdef _WIN64
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init_modulo_function();
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#endif
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ElementsAccessor::InitializeOncePerProcess();
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LOperand::SetUpCaches();
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compiler::Pipeline::SetUp();
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SetUpJSCallerSavedCodeData();
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ExternalReference::SetUp();
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Bootstrapper::InitializeOncePerProcess();
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}
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void V8::InitializeOncePerProcess() {
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base::CallOnce(&init_once, &InitializeOncePerProcessImpl);
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}
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void V8::InitializePlatform(v8::Platform* platform) {
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CHECK(!platform_);
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CHECK(platform);
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platform_ = platform;
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}
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void V8::ShutdownPlatform() {
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CHECK(platform_);
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platform_ = NULL;
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}
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v8::Platform* V8::GetCurrentPlatform() {
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DCHECK(platform_);
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return platform_;
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}
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} } // namespace v8::internal
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