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// 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 <memory>
#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(
scoped_refptr<base::SingleThreadTaskRunner> task_runner)
: IsolateHolder(std::move(task_runner), AccessMode::kSingleThread) {}
IsolateHolder::IsolateHolder(
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
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, access_mode, task_runner));
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(
std::unique_ptr<V8IdleTaskRunner> idle_task_runner) {
DCHECK(isolate_data_.get());
isolate_data_->EnableIdleTasks(std::move(idle_task_runner));
}
} // namespace gin
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