117 lines
2.8 KiB
C++
117 lines
2.8 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.
|
|
|
|
#ifndef ATOM_COMMON_NODE_BINDINGS_H_
|
|
#define ATOM_COMMON_NODE_BINDINGS_H_
|
|
|
|
#include "base/files/file_path.h"
|
|
#include "base/macros.h"
|
|
#include "base/memory/weak_ptr.h"
|
|
#include "base/single_thread_task_runner.h"
|
|
#include "uv.h" // NOLINT(build/include)
|
|
#include "v8/include/v8.h"
|
|
|
|
namespace base {
|
|
class MessageLoop;
|
|
}
|
|
|
|
namespace node {
|
|
class Environment;
|
|
class MultiIsolatePlatform;
|
|
} // namespace node
|
|
|
|
namespace atom {
|
|
|
|
class NodeBindings {
|
|
public:
|
|
enum BrowserEnvironment {
|
|
BROWSER,
|
|
RENDERER,
|
|
WORKER,
|
|
};
|
|
|
|
static NodeBindings* Create(BrowserEnvironment browser_env);
|
|
static void RegisterBuiltinModules();
|
|
static bool IsInitialized();
|
|
static base::FilePath::StringType GetHelperResourcesPath();
|
|
|
|
virtual ~NodeBindings();
|
|
|
|
// Setup V8, libuv.
|
|
void Initialize();
|
|
|
|
// Create the environment and load node.js.
|
|
node::Environment* CreateEnvironment(
|
|
v8::Handle<v8::Context> context,
|
|
node::MultiIsolatePlatform* platform = nullptr);
|
|
|
|
// Load node.js in the environment.
|
|
void LoadEnvironment(node::Environment* env);
|
|
|
|
// Prepare for message loop integration.
|
|
void PrepareMessageLoop();
|
|
|
|
// Do message loop integration.
|
|
virtual void RunMessageLoop();
|
|
|
|
// Gets/sets the environment to wrap uv loop.
|
|
void set_uv_env(node::Environment* env) { uv_env_ = env; }
|
|
node::Environment* uv_env() const { return uv_env_; }
|
|
|
|
uv_loop_t* uv_loop() const { return uv_loop_; }
|
|
|
|
protected:
|
|
explicit NodeBindings(BrowserEnvironment browser_env);
|
|
|
|
// Called to poll events in new thread.
|
|
virtual void PollEvents() = 0;
|
|
|
|
// Run the libuv loop for once.
|
|
void UvRunOnce();
|
|
|
|
// Make the main thread run libuv loop.
|
|
void WakeupMainThread();
|
|
|
|
// Interrupt the PollEvents.
|
|
void WakeupEmbedThread();
|
|
|
|
// Which environment we are running.
|
|
BrowserEnvironment browser_env_;
|
|
|
|
// Current thread's MessageLoop.
|
|
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
|
|
|
|
// Current thread's libuv loop.
|
|
uv_loop_t* uv_loop_;
|
|
|
|
private:
|
|
// Thread to poll uv events.
|
|
static void EmbedThreadRunner(void* arg);
|
|
|
|
// Whether the libuv loop has ended.
|
|
bool embed_closed_ = false;
|
|
|
|
// Loop used when constructed in WORKER mode
|
|
uv_loop_t worker_loop_;
|
|
|
|
// Dummy handle to make uv's loop not quit.
|
|
uv_async_t dummy_uv_handle_;
|
|
|
|
// Thread for polling events.
|
|
uv_thread_t embed_thread_;
|
|
|
|
// Semaphore to wait for main loop in the embed thread.
|
|
uv_sem_t embed_sem_;
|
|
|
|
// Environment that to wrap the uv loop.
|
|
node::Environment* uv_env_ = nullptr;
|
|
|
|
base::WeakPtrFactory<NodeBindings> weak_factory_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(NodeBindings);
|
|
};
|
|
|
|
} // namespace atom
|
|
|
|
#endif // ATOM_COMMON_NODE_BINDINGS_H_
|