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/*
* ThreadManager.cpp
*
* Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ThreadManager.h"
#include "FdManager.h"
#include <Common/Logger.h>
#include <Common/LogManager.h>
#include <fcntl.h>
namespace Mad {
namespace Net {
ThreadManager ThreadManager::threadManager;
void ThreadManager::workerFunc() {
while(true) {
boost::unique_lock<boost::mutex> lock(runLock);
if(!running || !isThisWorkerThread())
break;
lock.unlock();
boost::unique_lock<boost::mutex> lock2(workLock);
while(work.empty()) {
workCond.wait(lock2);
if(!running)
return;
}
boost::function0<void> nextWork = work.front();
work.pop();
lock2.unlock();
nextWork();
}
// And let the new worker thread join us...
// TODO pushWork(sigc::bind(sigc::mem_fun(this, &ThreadManager::threadFinished), (gl_thread_t)gl_thread_self()));
}
void ThreadManager::detach() {
if(!isThisMainThread()) {
Common::Logger::log(Common::Logger::CRITICAL, "Tried to detach main thread! This is just WRONG!");
return;
}
runLock.lock();
bool isRunning = running;
runLock.unlock();
if(!isRunning) // There's no point in creating a new worker thread when we aren't running anymore
return;
threadLock.lock();
if(workerThread->get_id() == boost::this_thread::get_id()) {// Already detached?
threads.add_thread(workerThread);
workerThread = new boost::thread(std::mem_fun(&ThreadManager::workerFunc), this);
}
threadLock.unlock();
}
void ThreadManager::pushWork(const boost::function0<void> &newWork) {
workLock.lock();
work.push(newWork);
workLock.unlock();
workCond.notify_one();
}
void ThreadManager::doInit() {
running = true;
threadLock.lock();
mainThreadId = boost::this_thread::get_id();
workerThread = new boost::thread(std::mem_fun(&ThreadManager::workerFunc), this);
loggerThread = new boost::thread(std::mem_fun(&Common::LogManager::loggerThread), Common::LogManager::get());
ioThread = new boost::thread(std::mem_fun(&FdManager::ioThread), FdManager::get());
threadLock.unlock();
}
void ThreadManager::doDeinit() {
if(!isThisMainThread()) {
// TODO Critical error!!!
return;
}
// First set running = false so the worker threads quit
boost::lock(runLock, workLock);
running = false;
workLock.unlock();
runLock.unlock();
workCond.notify_one();
// We don't have to lock threadLock as detach() won't change workerThread when running is false
workerThread->join();
delete workerThread;
// Now wait for all detached threads
threads.join_all();
// IO thread is next
FdManager::get()->stopIOThread();
ioThread->join();
delete ioThread;
// Finally, the logger thread has to die
Common::LogManager::get()->stopLoggerThread();
loggerThread->join();
delete loggerThread;
}
}
}
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