sgjesse@google.com
a6071e0880
Make one global thread pool instead of a thread pool for each eventhandler (i.e. isolate). Also: * Added handler function for thread pool tasks. * Added thread pool shutdown. * Added a simple test. R=ager@google.com BUG= TEST= Review URL: http://codereview.chromium.org//9112013 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3079 260f80e4-7a28-3924-810f-c04153c831b5
81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#ifndef BIN_EVENTHANDLER_H_
|
|
#define BIN_EVENTHANDLER_H_
|
|
|
|
#include "bin/builtin.h"
|
|
#include "bin/thread_pool.h"
|
|
|
|
// Flags used to provide information and actions to the eventhandler
|
|
// when sending a message about a file descriptor. These flags should
|
|
// be kept in sync with the constants in socket_impl.dart. For more
|
|
// information see the comments in socket_impl.dart
|
|
enum MessageFlags {
|
|
kInEvent = 0,
|
|
kOutEvent = 1,
|
|
kErrorEvent = 2,
|
|
kCloseEvent = 3,
|
|
kCloseCommand = 8,
|
|
kShutdownReadCommand = 9,
|
|
kShutdownWriteCommand = 10,
|
|
kListeningSocket = 16,
|
|
kPipe = 17,
|
|
};
|
|
|
|
|
|
// The event handler delegation class is OS specific.
|
|
#if defined(TARGET_OS_LINUX)
|
|
#include "bin/eventhandler_linux.h"
|
|
#elif defined(TARGET_OS_MACOS)
|
|
#include "bin/eventhandler_macos.h"
|
|
#elif defined(TARGET_OS_WINDOWS)
|
|
#include "bin/eventhandler_win.h"
|
|
#else
|
|
#error Unknown target os.
|
|
#endif
|
|
|
|
class EventHandler {
|
|
public:
|
|
void SendData(intptr_t id, Dart_Port dart_port, intptr_t data) {
|
|
delegate_.SendData(id, dart_port, data);
|
|
}
|
|
|
|
static void* AsyncTaskHandler(void* args) {
|
|
if (Dart_IsVMFlagSet("trace_thread_pool")) {
|
|
printf("Got async task\n");
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void Initialize() {
|
|
if (Dart_IsVMFlagSet("enable_thread_pool")) {
|
|
ASSERT(thread_pool_ == NULL);
|
|
thread_pool_ = new ThreadPool(&EventHandler::AsyncTaskHandler);
|
|
thread_pool_->Start();
|
|
}
|
|
}
|
|
|
|
static void Terminate() {
|
|
if (Dart_IsVMFlagSet("enable_thread_pool")) {
|
|
if (thread_pool_ != NULL) {
|
|
thread_pool_->Shutdown();
|
|
}
|
|
}
|
|
}
|
|
|
|
static EventHandler* StartEventHandler() {
|
|
EventHandler* handler = new EventHandler();
|
|
handler->delegate_.StartEventHandler();
|
|
return handler;
|
|
}
|
|
|
|
private:
|
|
EventHandlerImplementation delegate_;
|
|
static ThreadPool* thread_pool_;
|
|
};
|
|
|
|
|
|
#endif // BIN_EVENTHANDLER_H_
|