1 /*****************************************************************************
2 * vlc_threads.h : threads implementation for the VideoLAN client
3 * This header provides portable declarations for mutexes & conditions
4 *****************************************************************************
5 * Copyright (C) 1999, 2002 VideoLAN
6 * $Id: vlc_threads.h,v 1.11 2002/08/30 12:23:23 sam Exp $
8 * Authors: Jean-Marc Dressler <polux@via.ecp.fr>
9 * Samuel Hocevar <sam@via.ecp.fr>
10 * Gildas Bazin <gbazin@netcourrier.com>
11 * Christophe Massiot <massiot@via.ecp.fr>
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
26 *****************************************************************************/
30 #if defined(GPROF) || defined(DEBUG)
31 # include <sys/time.h>
34 #if defined( PTH_INIT_IN_PTH_H ) /* GNU Pth */
37 #elif defined( ST_INIT_IN_ST_H ) /* State threads */
40 #elif defined( WIN32 ) /* Win32 API */
43 #elif defined( PTHREAD_COND_T_IN_PTHREAD_H ) /* pthreads (like Linux & BSD) */
46 /* Needed for pthread_cond_timedwait */
49 /* This is not prototyped under Linux, though it exists. */
50 int pthread_mutexattr_setkind_np( pthread_mutexattr_t *attr, int kind );
52 #elif defined( HAVE_CTHREADS_H ) /* GNUMach */
53 # include <cthreads.h>
55 #elif defined( HAVE_KERNEL_SCHEDULER_H ) /* BeOS */
56 # include <kernel/OS.h>
57 # include <kernel/scheduler.h>
58 # include <byteorder.h>
61 # error no threads available on your system !
65 /*****************************************************************************
67 *****************************************************************************/
69 /* Thread priorities */
71 # define VLC_THREAD_PRIORITY_LOW 10
72 # define VLC_THREAD_PRIORITY_INPUT 37
73 # define VLC_THREAD_PRIORITY_AUDIO 38
74 # define VLC_THREAD_PRIORITY_OUTPUT 38
77 # define VLC_THREAD_PRIORITY_LOW 0
78 # define VLC_THREAD_PRIORITY_INPUT THREAD_PRIORITY_ABOVE_NORMAL
79 # define VLC_THREAD_PRIORITY_AUDIO THREAD_PRIORITY_ABOVE_NORMAL
80 # define VLC_THREAD_PRIORITY_OUTPUT THREAD_PRIORITY_ABOVE_NORMAL
83 # define VLC_THREAD_PRIORITY_LOW 0
84 # define VLC_THREAD_PRIORITY_INPUT 0
85 # define VLC_THREAD_PRIORITY_AUDIO 0
86 # define VLC_THREAD_PRIORITY_OUTPUT 0
90 /*****************************************************************************
92 *****************************************************************************/
94 #if defined( PTH_INIT_IN_PTH_H )
95 typedef pth_t vlc_thread_t;
99 vlc_object_t * p_this;
104 vlc_object_t * p_this;
107 #elif defined( ST_INIT_IN_ST_H )
108 typedef st_thread_t vlc_thread_t;
112 vlc_object_t * p_this;
117 vlc_object_t * p_this;
120 #elif defined( WIN32 )
121 typedef HANDLE vlc_thread_t;
122 typedef BOOL (WINAPI *SIGNALOBJECTANDWAIT) ( HANDLE, HANDLE, DWORD, BOOL );
123 typedef unsigned (__stdcall *PTHREAD_START) (void *);
127 /* WinNT/2K/XP implementation */
129 /* Win95/98/ME implementation */
130 CRITICAL_SECTION csection;
132 vlc_object_t * p_this;
137 volatile int i_waiting_threads;
138 /* WinNT/2K/XP implementation */
140 SIGNALOBJECTANDWAIT SignalObjectAndWait;
141 /* Win95/98/ME implementation */
143 CRITICAL_SECTION csection;
146 vlc_object_t * p_this;
149 #elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
150 typedef pthread_t vlc_thread_t;
153 pthread_mutex_t mutex;
154 vlc_object_t * p_this;
159 vlc_object_t * p_this;
162 #elif defined( HAVE_CTHREADS_H )
163 typedef cthread_t vlc_thread_t;
165 /* Those structs are the ones defined in /include/cthreads.h but we need
166 * to handle (&foo) where foo is a (mutex_t) while they handle (foo) where
167 * foo is a (mutex_t*) */
173 struct cthread_queue queue;
175 vlc_object_t * p_this;
181 struct cthread_queue queue;
183 struct cond_imp *implications;
185 vlc_object_t * p_this;
188 #elif defined( HAVE_KERNEL_SCHEDULER_H )
189 /* This is the BeOS implementation of the vlc threads, note that the mutex is
190 * not a real mutex and the cond_var is not like a pthread cond_var but it is
191 * enough for what wee need */
193 typedef thread_id vlc_thread_t;
200 vlc_object_t * p_this;
208 vlc_object_t * p_this;