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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2019, 2021 Sadie Powell <sadie@witchery.services>
*
* This file is part of InspIRCd. InspIRCd 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, version 2.
*
* 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/>.
*/
#pragma once
#include <condition_variable>
#include <mutex>
class ThreadSignalSocket;
class CoreExport SocketThread
: public Thread
{
private:
std::mutex mutex;
std::condition_variable_any condvar;
ThreadSignalSocket* socket;
protected:
/** Waits for an enqueue operation to complete
* You MUST hold the queue lock when you call this.
* It will be unlocked while you wait, and will be relocked
* before the function returns
*/
void WaitForQueue()
{
condvar.wait(mutex);
}
public:
/** Notifies parent by making the SignalFD ready to read
* No requirements on locking
*/
void NotifyParent();
SocketThread();
~SocketThread() override;
/** Lock queue.
*/
void LockQueue()
{
mutex.lock();
}
/** Unlock queue.
*/
void UnlockQueue()
{
mutex.unlock();
}
/** Unlock queue and send wakeup to worker
*/
void UnlockQueueWakeup()
{
condvar.notify_all();
mutex.unlock();
}
void OnStop() override
{
mutex.lock();
condvar.notify_all();
mutex.unlock();
}
/**
* Called in the context of the parent thread after a notification
* has passed through the socket
*/
virtual void OnNotify() = 0;
};
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