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+//=============================================================================
+// MusE
+// Linux Music Editor
+// $Id:$
+//
+// Copyright (C) 2002-2006 by Werner Schweer and others
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License 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, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//=============================================================================
+
+#ifndef __THREAD_H__
+#define __THREAD_H__
+
+#include <pthread.h>
+
+//---------------------------------------------------------
+// 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;
+ mutable int serialNo; // debug
+ };
+
+//---------------------------------------------------------
+// Thread
+//---------------------------------------------------------
+
+class Thread {
+ const char* _name;
+ volatile bool _running;
+ int _pollWait; // poll timeout in msec (-1 = infinite)
+ int sendSerialNo; // debug
+
+ pthread_t thread;
+
+ int toThreadFdw; // message to thread (app write)
+
+ PollList plist;
+ 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
+ };
+
+#endif
+