Index: src/libchcore/TThreadedQueueRunner.h =================================================================== diff -u -N --- src/libchcore/TThreadedQueueRunner.h (revision baad6054459abaaf69cbfd1ebad8783085160d99) +++ src/libchcore/TThreadedQueueRunner.h (revision 0) @@ -1,115 +0,0 @@ -// ============================================================================ -// Copyright (C) 2001-2016 by Jozef Starosczyk -// ixen@copyhandler.com -// -// This program is free software; you can redistribute it and/or modify -// it under the terms of the GNU Library General Public License -// (version 2) as published by the Free Software Foundation; -// -// 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 Library General Public -// License along with this program; if not, write to the -// Free Software Foundation, Inc., -// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -// ============================================================================ -#ifndef __THREADEDQUEUERUNNER_H__ -#define __THREADEDQUEUERUNNER_H__ - -#include "WaitableQueue.h" -#include -#include -#include "TEventGuard.h" - -namespace chcore -{ - template - class TThreadedQueueRunner - { - public: - explicit TThreadedQueueRunner(HANDLE hKill) : - m_hKill(hKill), - m_eventLocalKill(true, false) - { - } - - TThreadedQueueRunner(const TThreadedQueueRunner& rSrc) = delete; - - ~TThreadedQueueRunner() - { - Stop(); - } - - TThreadedQueueRunner& operator=(const TThreadedQueueRunner& rSrc) = delete; - - void Start() - { - if(m_thread.joinable()) - return; - m_eventLocalKill.ResetEvent(); - - m_thread = std::thread(&TThreadedQueueRunner::ThreadProc, this); - } - - void Stop() - { - m_eventLocalKill.SetEvent(); - - if(m_thread.joinable()) - m_thread.join(); - } - - void PushTask(T&& func) - { - // order is important here. First push task to be processed, then launch thread if not running already; - // this is to ensure the queued functions are called before thread is killed (which might happen with inverted order) - m_queue.PushBack(std::forward(func)); - - if(!m_thread.joinable()) - Start(); - } - - private: - void ThreadProc() - { - TEventGuard eventGuard(m_eventLocalKill, true); - - enum { eQueue, eLocalKill, eCount }; - std::array arrHandles = { m_queue.GetWaitHandle(), m_eventLocalKill.Handle() }; - - bool bStop = false; - do - { - DWORD dwResult = WaitForMultipleObjectsEx(eCount, arrHandles.data(), FALSE, INFINITE, FALSE); - switch(dwResult) - { - case WAIT_OBJECT_0 + eQueue: - { - T func = m_queue.PopFront(); - func(); - break; - } - - case WAIT_OBJECT_0 + eLocalKill: - default: - { - bStop = true; - break; - } - } - } - while(!bStop); - } - - private: - WaitableQueue m_queue; - std::thread m_thread; - HANDLE m_hKill = nullptr; - TEvent m_eventLocalKill; - }; -} - -#endif