root/trunk/libffado/src/libutil/Thread.h

Revision 742, 3.2 kB (checked in by ppalmers, 13 years ago)

- Remove some obsolete support files and dirs

- Clean up the license statements in the source files. Everything is

GPL version 3 now.

- Add license and copyright notices to scons scripts

- Clean up some other text files

Line 
1 /*
2  * Copyright (C) 2005-2007 by Pieter Palmers
3  *
4  * This file is part of FFADO
5  * FFADO = Free Firewire (pro-)audio drivers for linux
6  *
7  * FFADO is based upon FreeBoB
8  *
9  * This program is free software: you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation, either version 3 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
21  *
22  */
23
24 /*
25  * Copied from the jackd/jackdmp sources
26  * function names changed in order to avoid naming problems when using this in
27  * a jackd backend.
28  */
29
30 /* Original license:
31  *
32  *  Copyright (C) 2001 Paul Davis
33  *  Copyright (C) 2004-2006 Grame
34  *
35  *  This program is free software; you can redistribute it and/or modify
36  *  it under the terms of the GNU General Public License as published by
37  *  the Free Software Foundation; either version 2 of the License, or
38  *  (at your option) any later version.
39  *
40  *  This program is distributed in the hope that it will be useful,
41  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
42  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
43  *  GNU General Public License for more details.
44  *
45  *  You should have received a copy of the GNU General Public License
46  *  along with this program; if not, write to the Free Software
47  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
48  *
49  */
50
51 #ifndef __THREAD__
52 #define __THREAD__
53
54 #include "../debugmodule/debugmodule.h"
55
56 #include "Atomic.h"
57 #include <pthread.h>
58
59 namespace Util
60 {
61
62 /*!
63 \brief The base class for runnable objects, that have an <B> Init </B> and <B> Execute </B> method to be called in a thread.
64 */
65
66 class RunnableInterface
67 {
68
69     public:
70
71         RunnableInterface()
72         {}
73         virtual ~RunnableInterface()
74         {}
75
76         virtual bool Init()          /*! Called once when the thread is started */
77         {
78             return true;
79         }
80         virtual bool Execute() = 0;  /*! Must be implemented by subclasses */
81 };
82
83 /*!
84 \brief The thread base class.
85 */
86
87 class Thread
88 {
89
90     protected:
91
92         RunnableInterface* fRunnable;
93
94     public:
95
96         Thread(RunnableInterface* runnable): fRunnable(runnable)
97         {}
98         virtual ~Thread()
99         {}
100
101         virtual int Start() = 0;
102         virtual int Kill() = 0;
103         virtual int Stop() = 0;
104
105         virtual int AcquireRealTime() = 0;
106         virtual int AcquireRealTime(int priority) = 0;
107         virtual int DropRealTime() = 0;
108
109         virtual void SetParams(UInt64 period, UInt64 computation, UInt64 constraint) // Empty implementation, will only make sense on OSX...
110         {}
111
112         virtual pthread_t GetThreadID() = 0;
113
114         virtual void setVerboseLevel(int l)
115             {setDebugLevel(l);};
116     protected:
117             DECLARE_DEBUG_MODULE;
118
119 };
120
121 } // end of namespace
122
123 #endif
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