//========================================================= // MusE // Linux Music Editor // $Id: thread.h,v 1.1.1.1.2.2 2009/12/20 05:00:35 terminator356 Exp $ // // (C) Copyright 2001 Werner Schweer (ws@seh.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; version 2 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, write to the Free Software // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. // //========================================================= #ifndef __THREAD_H__ #define __THREAD_H__ #include #include struct pollfd; namespace MusECore { //--------------------------------------------------------- // Poll //--------------------------------------------------------- struct Poll { int fd; int action; void (*handler)(void*,void*); void* param1; void* param2; Poll(int _fd, int _action, void(*_handler)(void*,void*), void* p, void* q) { fd = _fd; action = _action; handler = _handler; param1 = p; param2 = q; } }; typedef std::list PollList; typedef std::list::iterator iPoll; //--------------------------------------------------------- // ThreadMsg //--------------------------------------------------------- struct ThreadMsg { int id; }; //--------------------------------------------------------- // Thread //--------------------------------------------------------- class Thread { const char* _name; volatile bool _running; //int realTimePriority; int _pollWait; // poll timeout in msec (-1 = infinite) pthread_t thread; int toThreadFdw; // message to thread (app write) PollList plist; // pthread_mutex_t lock; // pthread_cond_t ready; void* userPtr; protected: int _realTimePriority; int fromThreadFdr; // message from thread (seq read) int fromThreadFdw; // message from thread (app write) int toThreadFdr; // message to thread (seq read) struct pollfd* pfd; // poll file descriptors int npfd; int maxpfd; virtual void processMsg(const ThreadMsg*) {} virtual void processMsg1(const void *) {} virtual void defaultTick() {} public: //Thread(int prio, const char* name); Thread(const char* name); virtual ~Thread(); const char* name() const { return _name; } //virtual void start(void* ptr=0); virtual void start(int priority, void* ptr=0); void stop(bool); void clearPollFd() { plist.clear(); npfd = 0; } void addPollFd(int fd, int action, void (*handler)(void*,void*), void*, void*); void removePollFd(int fd, int action); void loop(); void readMsg(); void readMsg1(int size); bool sendMsg1(const void* m, int n); bool sendMsg(const ThreadMsg* m); bool isRunning() const { return _running; } void setPollWait(int val) { _pollWait = val; } virtual void threadStart(void*){ } // called from loop virtual void threadStop() { } // called from loop before leaving }; } // namespace MusECore #endif