| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "gin/public/isolate_holder.h" |
| |
| #include <stddef.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <utility> |
| |
| #include "base/logging.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/sys_info.h" |
| #include "gin/debug_impl.h" |
| #include "gin/function_template.h" |
| #include "gin/per_isolate_data.h" |
| #include "gin/run_microtasks_observer.h" |
| #include "gin/v8_initializer.h" |
| #include "gin/v8_isolate_memory_dump_provider.h" |
| |
| namespace gin { |
| |
| namespace { |
| v8::ArrayBuffer::Allocator* g_array_buffer_allocator = nullptr; |
| } // namespace |
| |
| IsolateHolder::IsolateHolder() : IsolateHolder(AccessMode::kSingleThread) { |
| } |
| |
| IsolateHolder::IsolateHolder(AccessMode access_mode) |
| : access_mode_(access_mode) { |
| v8::ArrayBuffer::Allocator* allocator = g_array_buffer_allocator; |
| CHECK(allocator) << "You need to invoke gin::IsolateHolder::Initialize first"; |
| v8::Isolate::CreateParams params; |
| params.entry_hook = DebugImpl::GetFunctionEntryHook(); |
| params.code_event_handler = DebugImpl::GetJitCodeEventHandler(); |
| params.constraints.ConfigureDefaults(base::SysInfo::AmountOfPhysicalMemory(), |
| base::SysInfo::AmountOfVirtualMemory()); |
| params.array_buffer_allocator = allocator; |
| isolate_ = v8::Isolate::New(params); |
| isolate_data_.reset(new PerIsolateData(isolate_, allocator)); |
| isolate_memory_dump_provider_.reset(new V8IsolateMemoryDumpProvider(this)); |
| #if defined(OS_WIN) |
| { |
| void* code_range; |
| size_t size; |
| isolate_->GetCodeRange(&code_range, &size); |
| Debug::CodeRangeCreatedCallback callback = |
| DebugImpl::GetCodeRangeCreatedCallback(); |
| if (code_range && size && callback) |
| callback(code_range, size); |
| } |
| #endif |
| } |
| |
| IsolateHolder::~IsolateHolder() { |
| if (task_observer_.get()) |
| base::MessageLoop::current()->RemoveTaskObserver(task_observer_.get()); |
| #if defined(OS_WIN) |
| { |
| void* code_range; |
| size_t size; |
| isolate_->GetCodeRange(&code_range, &size); |
| Debug::CodeRangeDeletedCallback callback = |
| DebugImpl::GetCodeRangeDeletedCallback(); |
| if (code_range && callback) |
| callback(code_range); |
| } |
| #endif |
| isolate_memory_dump_provider_.reset(); |
| isolate_data_.reset(); |
| isolate_->Dispose(); |
| isolate_ = NULL; |
| } |
| |
| // static |
| void IsolateHolder::Initialize(ScriptMode mode, |
| V8ExtrasMode v8_extras_mode, |
| v8::ArrayBuffer::Allocator* allocator) { |
| CHECK(allocator); |
| V8Initializer::Initialize(mode, v8_extras_mode); |
| g_array_buffer_allocator = allocator; |
| } |
| |
| void IsolateHolder::AddRunMicrotasksObserver() { |
| DCHECK(!task_observer_.get()); |
| task_observer_.reset(new RunMicrotasksObserver(isolate_)); |
| base::MessageLoop::current()->AddTaskObserver(task_observer_.get()); |
| } |
| |
| void IsolateHolder::RemoveRunMicrotasksObserver() { |
| DCHECK(task_observer_.get()); |
| base::MessageLoop::current()->RemoveTaskObserver(task_observer_.get()); |
| task_observer_.reset(); |
| } |
| |
| void IsolateHolder::EnableIdleTasks( |
| scoped_ptr<V8IdleTaskRunner> idle_task_runner) { |
| DCHECK(isolate_data_.get()); |
| isolate_data_->EnableIdleTasks(std::move(idle_task_runner)); |
| } |
| |
| } // namespace gin |