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//=========================================================
// 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 <pthread.h>
#include <list>
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<Poll> PollList;
typedef std::list<Poll>::iterator iPoll;
//---------------------------------------------------------
// ThreadMsg
//---------------------------------------------------------
struct ThreadMsg {
int id;
};
//---------------------------------------------------------
// Thread
//---------------------------------------------------------
class Thread {
const char* _name;
volatile bool _running;
int _pollWait; // poll timeout in msec (-1 = infinite)
pthread_t thread;
int toThreadFdw; // message to thread (app write)
PollList plist;
// pthread_mutex_t lock; DELETETHIS 2
// 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(const char* name);
virtual ~Thread();
const char* name() const { return _name; }
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
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