75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
// Copyright (c) 2013 GitHub, Inc.
|
|
// Use of this source code is governed by the MIT license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "atom/browser/javascript_environment.h"
|
|
|
|
#include <string>
|
|
|
|
#include "base/command_line.h"
|
|
#include "base/message_loop/message_loop.h"
|
|
#include "base/task_scheduler/initialization_util.h"
|
|
#include "base/threading/thread_task_runner_handle.h"
|
|
#include "content/public/common/content_switches.h"
|
|
#include "gin/array_buffer.h"
|
|
#include "gin/v8_initializer.h"
|
|
|
|
#include "atom/common/node_includes.h"
|
|
#include "tracing/trace_event.h"
|
|
|
|
namespace atom {
|
|
|
|
JavascriptEnvironment::JavascriptEnvironment(uv_loop_t* event_loop)
|
|
: isolate_(Initialize(event_loop)),
|
|
isolate_holder_(base::ThreadTaskRunnerHandle::Get(),
|
|
gin::IsolateHolder::kSingleThread,
|
|
gin::IsolateHolder::kAllowAtomicsWait,
|
|
gin::IsolateHolder::IsolateCreationMode::kNormal,
|
|
isolate_),
|
|
isolate_scope_(isolate_),
|
|
locker_(isolate_),
|
|
handle_scope_(isolate_),
|
|
context_(isolate_, v8::Context::New(isolate_)),
|
|
context_scope_(v8::Local<v8::Context>::New(isolate_, context_)) {}
|
|
|
|
JavascriptEnvironment::~JavascriptEnvironment() = default;
|
|
|
|
v8::Isolate* JavascriptEnvironment::Initialize(uv_loop_t* event_loop) {
|
|
auto* cmd = base::CommandLine::ForCurrentProcess();
|
|
|
|
// --js-flags.
|
|
std::string js_flags = cmd->GetSwitchValueASCII(switches::kJavaScriptFlags);
|
|
if (!js_flags.empty())
|
|
v8::V8::SetFlagsFromString(js_flags.c_str(), js_flags.size());
|
|
|
|
// The V8Platform of gin relies on Chromium's task schedule, which has not
|
|
// been started at this point, so we have to rely on Node's V8Platform.
|
|
auto* tracing_controller = new v8::TracingController();
|
|
node::tracing::TraceEventHelper::SetTracingController(tracing_controller);
|
|
platform_ = node::CreatePlatform(
|
|
base::RecommendedMaxNumberOfThreadsInPool(3, 8, 0.1, 0),
|
|
tracing_controller);
|
|
|
|
v8::V8::InitializePlatform(platform_);
|
|
gin::IsolateHolder::Initialize(
|
|
gin::IsolateHolder::kNonStrictMode, gin::IsolateHolder::kStableV8Extras,
|
|
gin::ArrayBufferAllocator::SharedInstance(),
|
|
nullptr /* external_reference_table */, false /* create_v8_platform */);
|
|
|
|
v8::Isolate* isolate = v8::Isolate::Allocate();
|
|
platform_->RegisterIsolate(isolate, event_loop);
|
|
|
|
return isolate;
|
|
}
|
|
|
|
void JavascriptEnvironment::OnMessageLoopDestroying() {
|
|
platform_->UnregisterIsolate(isolate_);
|
|
}
|
|
|
|
NodeEnvironment::NodeEnvironment(node::Environment* env) : env_(env) {}
|
|
|
|
NodeEnvironment::~NodeEnvironment() {
|
|
node::FreeEnvironment(env_);
|
|
}
|
|
|
|
} // namespace atom
|