src/common/Thread.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *   Copyright (C) 2005 - 2007 Christian Schoenebeck                       *
 *                                                                         *
 *   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; either 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., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#ifndef __THREAD_H__
#define __THREAD_H__

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <sched.h>
#include <sys/mman.h>
#include <memory.h>
#include <pthread.h>
#include <errno.h>

namespace LinuxSampler {

/// Abstract base class for classes that need to run in an own thread.
class Thread {
    public:
        Thread(bool LockMemory, bool RealTime, int PriorityMax, int PriorityDelta);
        virtual ~Thread();
        virtual int  StartThread();
        virtual int  StopThread();
        virtual int  SignalStartThread();
        virtual int  SignalStopThread();
        virtual bool IsRunning();
        virtual int  SetSchedulingPriority(); //FIXME: should be private
        virtual int  LockMemory();            //FIXME: should be private
        virtual void EnableDestructor();      //FIXME: should be private
        virtual int  Destructor();            //FIXME: should be private
        virtual int  Main() = 0; ///< This method needs to be implemented by the descendant and is the entry point for the new thread. FIXME: should be protected
    private:
        pthread_t       __thread_id;
        pthread_key_t   __thread_destructor_key;
        pthread_mutex_t __thread_state_mutex;
        pthread_cond_t  __thread_start_condition;
        pthread_cond_t  __thread_exit_condition;
        int             PriorityMax;
        int             PriorityDelta;
        bool            Running;
        bool            isRealTime;
        bool            bLockedMemory;
};

// Callback functions for the POSIX thread API
void* __pthread_launcher(void* thread);
void  __pthread_destructor(void* thread);

} // namespace LinuxSampler

#endif // __THREAD_H__
1	schoenebeck	53	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5	schoenebeck	56	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	schoenebeck	1212	* Copyright (C) 2005 - 2007 Christian Schoenebeck *
7	schoenebeck	53	* *
8			* This program is free software; you can redistribute it and/or modify *
9			* it under the terms of the GNU General Public License as published by *
10			* the Free Software Foundation; either version 2 of the License, or *
11			* (at your option) any later version. *
12			* *
13			* This program is distributed in the hope that it will be useful, *
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16			* GNU General Public License for more details. *
17			* *
18			* You should have received a copy of the GNU General Public License *
19			* along with this program; if not, write to the Free Software *
20			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21			* MA 02111-1307 USA *
22			***************************************************************************/
23
24			#ifndef __THREAD_H__
25			#define __THREAD_H__
26
27			#include <iostream>
28			#include <stdio.h>
29			#include <stdlib.h>
30			#include <sched.h>
31			#include <sys/mman.h>
32			#include <memory.h>
33			#include <pthread.h>
34			#include <errno.h>
35
36	schoenebeck	1212	namespace LinuxSampler {
37
38	schoenebeck	53	/// Abstract base class for classes that need to run in an own thread.
39			class Thread {
40			public:
41	schoenebeck	392	Thread(bool LockMemory, bool RealTime, int PriorityMax, int PriorityDelta);
42	schoenebeck	53	virtual ~Thread();
43			virtual int StartThread();
44			virtual int StopThread();
45	schoenebeck	57	virtual int SignalStartThread();
46	schoenebeck	53	virtual int SignalStopThread();
47	schoenebeck	1212	virtual bool IsRunning();
48	schoenebeck	53	virtual int SetSchedulingPriority(); //FIXME: should be private
49	schoenebeck	392	virtual int LockMemory(); //FIXME: should be private
50	schoenebeck	53	virtual void EnableDestructor(); //FIXME: should be private
51			virtual int Destructor(); //FIXME: should be private
52			virtual int Main() = 0; ///< This method needs to be implemented by the descendant and is the entry point for the new thread. FIXME: should be protected
53			private:
54			pthread_t __thread_id;
55			pthread_key_t __thread_destructor_key;
56			pthread_mutex_t __thread_state_mutex;
57	schoenebeck	57	pthread_cond_t __thread_start_condition;
58	schoenebeck	53	pthread_cond_t __thread_exit_condition;
59			int PriorityMax;
60			int PriorityDelta;
61			bool Running;
62			bool isRealTime;
63	schoenebeck	392	bool bLockedMemory;
64	schoenebeck	53	};
65
66			// Callback functions for the POSIX thread API
67			void* __pthread_launcher(void* thread);
68			void __pthread_destructor(void* thread);
69
70	schoenebeck	1212	} // namespace LinuxSampler
71
72	schoenebeck	53	#endif // __THREAD_H__