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>

#include "Condition.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_attr_t  __thread_attr;
        pthread_t       __thread_id;
        pthread_key_t   __thread_destructor_key;
        Condition       RunningCondition;
        int             PriorityMax;
        int             PriorityDelta;
        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	/***************************************************************************
2	* *
3	* LinuxSampler - modular, streaming capable sampler *
4	* *
5	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	* Copyright (C) 2005 - 2007 Christian Schoenebeck *
7	* *
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	#include "Condition.h"
37
38	namespace LinuxSampler {
39
40	/// Abstract base class for classes that need to run in an own thread.
41	class Thread {
42	public:
43	Thread(bool LockMemory, bool RealTime, int PriorityMax, int PriorityDelta);
44	virtual ~Thread();
45	virtual int StartThread();
46	virtual int StopThread();
47	virtual int SignalStartThread();
48	virtual int SignalStopThread();
49	virtual bool IsRunning();
50	virtual int SetSchedulingPriority(); //FIXME: should be private
51	virtual int LockMemory(); //FIXME: should be private
52	virtual void EnableDestructor(); //FIXME: should be private
53	virtual int Destructor(); //FIXME: should be private
54	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
55	private:
56	pthread_attr_t __thread_attr;
57	pthread_t __thread_id;
58	pthread_key_t __thread_destructor_key;
59	Condition RunningCondition;
60	int PriorityMax;
61	int PriorityDelta;
62	bool isRealTime;
63	bool bLockedMemory;
64	};
65
66	// Callback functions for the POSIX thread API
67	void* __pthread_launcher(void* thread);
68	void __pthread_destructor(void* thread);
69
70	} // namespace LinuxSampler
71
72	#endif // __THREAD_H__