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https://github.com/RetroShare/RetroShare.git
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c6beee44ec
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@4558 b45a01b8-16f6-495d-af2f-9b41ad6348cc
160 lines
3.1 KiB
C++
160 lines
3.1 KiB
C++
#ifndef RSIFACE_THREADS_H
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#define RSIFACE_THREADS_H
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/*
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* "$Id: rsthreads.h,v 1.1 2007-02-19 20:08:30 rmf24 Exp $"
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*
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* RetroShare C++ Interface.
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*
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* Copyright 2004-2006 by Robert Fernie.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License Version 2 as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA.
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*
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* Please report all bugs and problems to "retroshare@lunamutt.com".
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*
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*/
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#ifdef WINDOWS_SYS
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#include "util/rswin.h"
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#endif
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#include <pthread.h>
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#include <inttypes.h>
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#include <string>
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/* RsIface Thread Wrappers */
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#undef RSTHREAD_SELF_LOCKING_GUARD
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//#define RSMUTEX_DEBUG 300 // Milliseconds for print in the stderr
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class RsMutex
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{
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public:
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RsMutex(const std::string& name)
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{
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/* remove unused parameter warnings */
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(void) name;
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pthread_mutex_init(&realMutex, NULL);
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#ifdef RSTHREAD_SELF_LOCKING_GUARD
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_thread_id = 0 ;
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#endif
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#ifdef RSMUTEX_DEBUG
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this->name = name;
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#endif
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}
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~RsMutex()
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{
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pthread_mutex_destroy(&realMutex);
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}
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#ifdef RSMUTEX_DEBUG
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void setName(const std::string &name)
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{
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this->name = name;
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}
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#endif
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void lock();
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void unlock()
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{
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#ifdef RSTHREAD_SELF_LOCKING_GUARD
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if(--_cnt == 0)
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{
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#endif
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#ifndef WIN32
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_thread_id = 0 ;
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#endif
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pthread_mutex_unlock(&realMutex);
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#ifdef RSTHREAD_SELF_LOCKING_GUARD
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}
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#endif
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}
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bool trylock() { return (0 == pthread_mutex_trylock(&realMutex)); }
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private:
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pthread_mutex_t realMutex;
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pthread_t _thread_id ;
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#ifdef RSTHREAD_SELF_LOCKING_GUARD
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uint32_t _cnt ;
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#endif
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#ifdef RSMUTEX_DEBUG
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std::string name;
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#endif
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};
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class RsStackMutex
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{
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public:
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RsStackMutex(RsMutex &mtx): mMtx(mtx) { mMtx.lock(); }
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~RsStackMutex() { mMtx.unlock(); }
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private:
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RsMutex &mMtx;
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};
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class RsThread;
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/* to create a thread! */
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pthread_t createThread(RsThread &thread);
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class RsThread
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{
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public:
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RsThread();
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virtual ~RsThread() {}
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virtual void start() { createThread(*this); }
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virtual void run() = 0; /* called once the thread is started */
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virtual void join(); /* waits for the the mTid thread to stop */
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virtual void stop(); /* calls pthread_exit() */
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bool isRunning();
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pthread_t mTid;
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RsMutex mMutex;
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private:
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bool mIsRunning;
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};
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class RsQueueThread: public RsThread
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{
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public:
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RsQueueThread(uint32_t min, uint32_t max, double relaxFactor );
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virtual ~RsQueueThread() { return; }
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virtual void run();
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protected:
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virtual bool workQueued() = 0;
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virtual bool doWork() = 0;
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private:
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uint32_t mMinSleep; /* ms */
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uint32_t mMaxSleep; /* ms */
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uint32_t mLastSleep; /* ms */
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time_t mLastWork; /* secs */
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float mRelaxFactor;
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};
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#endif
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