* vlc_threads.h : threads implementation for the VideoLAN client
* This header provides portable declarations for mutexes & conditions
*****************************************************************************
- * Copyright (C) 1999, 2002 VideoLAN
- * $Id: vlc_threads.h,v 1.17 2002/11/10 18:04:22 sam Exp $
+ * Copyright (C) 1999, 2002 the VideoLAN team
+ * $Id$
*
* Authors: Jean-Marc Dressler <polux@via.ecp.fr>
* Samuel Hocevar <sam@via.ecp.fr>
* 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
*
* 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, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#include <stdio.h>
-
-#if defined(GPROF) || defined(DEBUG)
-# ifdef HAVE_SYS_TIME_H
-# include <sys/time.h>
-# endif
+#if !defined( __LIBVLC__ )
+ #error You are not libvlc or one of its plugins. You cannot include this file
#endif
-#if defined( PTH_INIT_IN_PTH_H ) /* GNU Pth */
-# include <pth.h>
+#ifndef _VLC_THREADS_H_
+#define _VLC_THREADS_H_
-#elif defined( ST_INIT_IN_ST_H ) /* State threads */
-# include <st.h>
+#include <stdio.h>
-#elif defined( WIN32 )
-# if defined( UNDER_CE )
+#if defined( UNDER_CE )
/* WinCE API */
-# else
-# include <process.h> /* Win32 API */
-# endif
-
-#elif defined( PTHREAD_COND_T_IN_PTHREAD_H ) /* pthreads (like Linux & BSD) */
-# include <pthread.h>
-# ifdef DEBUG
- /* Needed for pthread_cond_timedwait */
-# include <errno.h>
-# endif
- /* This is not prototyped under Linux, though it exists. */
- int pthread_mutexattr_setkind_np( pthread_mutexattr_t *attr, int kind );
-
-#elif defined( HAVE_CTHREADS_H ) /* GNUMach */
-# include <cthreads.h>
+#elif defined( WIN32 )
+# include <process.h> /* Win32 API */
#elif defined( HAVE_KERNEL_SCHEDULER_H ) /* BeOS */
# include <kernel/OS.h>
# include <kernel/scheduler.h>
# include <byteorder.h>
-#else
-# error no threads available on your system !
+#else /* pthreads (like Linux & BSD) */
+# define LIBVLC_USE_PTHREAD 1
+# define _APPLE_C_SOURCE 1 /* Proper pthread semantics on OSX */
+
+# include <unistd.h> /* _POSIX_SPIN_LOCKS */
+# include <pthread.h>
+ /* Needed for pthread_cond_timedwait */
+# include <errno.h>
+# include <time.h>
#endif
*****************************************************************************/
/* Thread priorities */
-#ifdef SYS_DARWIN
-# define VLC_THREAD_PRIORITY_LOW 31
+#ifdef __APPLE__
+# define VLC_THREAD_PRIORITY_LOW (-47)
# define VLC_THREAD_PRIORITY_INPUT 37
-# define VLC_THREAD_PRIORITY_AUDIO 38
-# define VLC_THREAD_PRIORITY_VIDEO 31
-# define VLC_THREAD_PRIORITY_OUTPUT 31
-
-#elif defined(WIN32)
+# define VLC_THREAD_PRIORITY_AUDIO 37
+# define VLC_THREAD_PRIORITY_VIDEO (-47)
+# define VLC_THREAD_PRIORITY_OUTPUT 37
+# define VLC_THREAD_PRIORITY_HIGHEST 37
+
+#elif defined(SYS_BEOS)
+# define VLC_THREAD_PRIORITY_LOW 5
+# define VLC_THREAD_PRIORITY_INPUT 10
+# define VLC_THREAD_PRIORITY_AUDIO 10
+# define VLC_THREAD_PRIORITY_VIDEO 5
+# define VLC_THREAD_PRIORITY_OUTPUT 15
+# define VLC_THREAD_PRIORITY_HIGHEST 15
+
+#elif defined(LIBVLC_USE_PTHREAD)
# define VLC_THREAD_PRIORITY_LOW 0
-# define VLC_THREAD_PRIORITY_INPUT THREAD_PRIORITY_TIME_CRITICAL
-# define VLC_THREAD_PRIORITY_AUDIO THREAD_PRIORITY_HIGHEST
+# define VLC_THREAD_PRIORITY_INPUT 20
+# define VLC_THREAD_PRIORITY_AUDIO 10
# define VLC_THREAD_PRIORITY_VIDEO 0
-# define VLC_THREAD_PRIORITY_OUTPUT THREAD_PRIORITY_ABOVE_NORMAL
+# define VLC_THREAD_PRIORITY_OUTPUT 30
+# define VLC_THREAD_PRIORITY_HIGHEST 40
+
+#elif defined(WIN32) || defined(UNDER_CE)
+/* Define different priorities for WinNT/2K/XP and Win9x/Me */
+# define VLC_THREAD_PRIORITY_LOW 0
+# define VLC_THREAD_PRIORITY_INPUT \
+ (IS_WINNT ? THREAD_PRIORITY_ABOVE_NORMAL : 0)
+# define VLC_THREAD_PRIORITY_AUDIO \
+ (IS_WINNT ? THREAD_PRIORITY_HIGHEST : 0)
+# define VLC_THREAD_PRIORITY_VIDEO \
+ (IS_WINNT ? 0 : THREAD_PRIORITY_BELOW_NORMAL )
+# define VLC_THREAD_PRIORITY_OUTPUT \
+ (IS_WINNT ? THREAD_PRIORITY_ABOVE_NORMAL : 0)
+# define VLC_THREAD_PRIORITY_HIGHEST \
+ (IS_WINNT ? THREAD_PRIORITY_TIME_CRITICAL : 0)
#else
# define VLC_THREAD_PRIORITY_LOW 0
# define VLC_THREAD_PRIORITY_AUDIO 0
# define VLC_THREAD_PRIORITY_VIDEO 0
# define VLC_THREAD_PRIORITY_OUTPUT 0
+# define VLC_THREAD_PRIORITY_HIGHEST 0
#endif
* Type definitions
*****************************************************************************/
-#if defined( PTH_INIT_IN_PTH_H )
-typedef pth_t vlc_thread_t;
-typedef struct
-{
- pth_mutex_t mutex;
- vlc_object_t * p_this;
-} vlc_mutex_t;
-typedef struct
-{
- pth_cond_t cond;
- vlc_object_t * p_this;
-} vlc_cond_t;
-
-#elif defined( ST_INIT_IN_ST_H )
-typedef st_thread_t vlc_thread_t;
-typedef struct
-{
- st_mutex_t mutex;
- vlc_object_t * p_this;
-} vlc_mutex_t;
+#if defined( WIN32 ) || defined( UNDER_CE )
typedef struct
{
- st_cond_t cond;
- vlc_object_t * p_this;
-} vlc_cond_t;
+ /* thread id */
+ DWORD id;
+ /*
+ ** handle to created thread, needs be closed to dispose of it
+ ** even after thread has exited
+ */
+ HANDLE hThread;
+} vlc_thread_t;
-#elif defined( WIN32 )
-typedef HANDLE vlc_thread_t;
typedef BOOL (WINAPI *SIGNALOBJECTANDWAIT) ( HANDLE, HANDLE, DWORD, BOOL );
-typedef unsigned (__stdcall *PTHREAD_START) (void *);
typedef struct
{
HANDLE mutex;
/* Win95/98/ME implementation */
CRITICAL_SECTION csection;
-
- vlc_object_t * p_this;
} vlc_mutex_t;
typedef struct
HANDLE semaphore;
CRITICAL_SECTION csection;
int i_win9x_cv;
-
- vlc_object_t * p_this;
} vlc_cond_t;
-#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
-typedef pthread_t vlc_thread_t;
typedef struct
{
- pthread_mutex_t mutex;
- vlc_object_t * p_this;
-} vlc_mutex_t;
-typedef struct
-{
- pthread_cond_t cond;
- vlc_object_t * p_this;
-} vlc_cond_t;
+ DWORD handle;
+} vlc_threadvar_t;
+
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
+/* This is the BeOS implementation of the vlc threads, note that the mutex is
+ * not a real mutex and the cond_var is not like a pthread cond_var but it is
+ * enough for what we need */
-#elif defined( HAVE_CTHREADS_H )
-typedef cthread_t vlc_thread_t;
+typedef thread_id vlc_thread_t;
-/* Those structs are the ones defined in /include/cthreads.h but we need
- * to handle (&foo) where foo is a (mutex_t) while they handle (foo) where
- * foo is a (mutex_t*) */
typedef struct
{
- spin_lock_t held;
- spin_lock_t lock;
- char *name;
- struct cthread_queue queue;
-
- vlc_object_t * p_this;
+ int32_t init;
+ sem_id lock;
} vlc_mutex_t;
typedef struct
{
- spin_lock_t lock;
- struct cthread_queue queue;
- char *name;
- struct cond_imp *implications;
-
- vlc_object_t * p_this;
+ int32_t init;
+ thread_id thread;
} vlc_cond_t;
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
-/* This is the BeOS implementation of the vlc threads, note that the mutex is
- * not a real mutex and the cond_var is not like a pthread cond_var but it is
- * enough for what wee need */
+typedef struct
+{
+} vlc_threadvar_t;
-typedef thread_id vlc_thread_t;
+#else
+typedef pthread_t vlc_thread_t;
typedef struct
{
- int32 init;
- sem_id lock;
-
- vlc_object_t * p_this;
+ pthread_mutex_t mutex;
} vlc_mutex_t;
-
typedef struct
{
- int32 init;
- thread_id thread;
-
- vlc_object_t * p_this;
+ pthread_cond_t cond;
} vlc_cond_t;
+typedef struct
+{
+ pthread_key_t handle;
+} vlc_threadvar_t;
+
#endif
+#endif /* !_VLC_THREADS_H */
projects / vlc / blobdiff