* vlc_threads.h : threads implementation for the VideoLAN client
* This header provides portable declarations for mutexes & conditions
*****************************************************************************
- * Copyright (C) 1999, 2002 the VideoLAN team
+ * Copyright (C) 1999, 2002 VLC authors and VideoLAN
* Copyright © 2007-2008 Rémi Denis-Courmont
*
* Authors: Jean-Marc Dressler <polux@via.ecp.fr>
* Gildas Bazin <gbazin@netcourrier.com>
* Christophe Massiot <massiot@via.ecp.fr>
*
- * 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
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 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.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef VLC_THREADS_H_
#elif defined( WIN32 )
# include <process.h> /* Win32 API */
+#elif defined( __OS2__ ) /* OS/2 API */
+# include <errno.h>
+
+# define pthread_sigmask sigprocmask
+
#else /* pthreads (like Linux & BSD) */
# define LIBVLC_USE_PTHREAD 1
# define LIBVLC_USE_PTHREAD_CANCEL 1
# define VLC_THREAD_PRIORITY_HIGHEST \
THREAD_PRIORITY_TIME_CRITICAL
+#elif defined(__OS2__)
+# define VLC_THREAD_PRIORITY_LOW 0
+# define VLC_THREAD_PRIORITY_INPUT MAKESHORT( PRTYD_MAXIMUM / 2, PRTYC_REGULAR )
+# define VLC_THREAD_PRIORITY_AUDIO MAKESHORT( PRTYD_MAXIMUM, PRTYC_REGULAR )
+# define VLC_THREAD_PRIORITY_VIDEO 0
+# define VLC_THREAD_PRIORITY_OUTPUT MAKESHORT( PRTYD_MAXIMUM / 2, PRTYC_REGULAR )
+# define VLC_THREAD_PRIORITY_HIGHEST MAKESHORT( 0, PRTYC_TIMECRITICAL )
+
#else
# define VLC_THREAD_PRIORITY_LOW 0
# define VLC_THREAD_PRIORITY_INPUT 0
typedef pthread_cond_t vlc_cond_t;
#define VLC_STATIC_COND PTHREAD_COND_INITIALIZER
typedef pthread_rwlock_t vlc_rwlock_t;
+#define VLC_STATIC_RWLOCK PTHREAD_RWLOCK_INITIALIZER
typedef pthread_key_t vlc_threadvar_t;
typedef struct vlc_timer *vlc_timer_t;
HANDLE handle;
unsigned clock;
} vlc_cond_t;
+#define VLC_STATIC_COND { 0, 0 }
typedef HANDLE vlc_sem_t;
typedef struct
{
vlc_mutex_t mutex;
- vlc_cond_t read_wait;
- vlc_cond_t write_wait;
+ vlc_cond_t wait;
unsigned long readers;
- unsigned long writers;
DWORD writer;
} vlc_rwlock_t;
+#define VLC_STATIC_RWLOCK \
+ { VLC_STATIC_MUTEX, VLC_STATIC_COND, 0, 0 }
+
+typedef struct vlc_threadvar *vlc_threadvar_t;
+typedef struct vlc_timer *vlc_timer_t;
+
+#elif defined( __OS2__ )
+typedef struct vlc_thread *vlc_thread_t;
+
+typedef struct
+{
+ bool dynamic;
+ union
+ {
+ struct
+ {
+ bool locked;
+ unsigned long contention;
+ };
+ HMTX hmtx;
+ };
+} vlc_mutex_t;
+
+#define VLC_STATIC_MUTEX { false, { { false, 0 } } }
+
+typedef struct
+{
+ HEV hev;
+ unsigned clock;
+} vlc_cond_t;
+
+#define VLC_STATIC_COND { 0, 0 }
+
+typedef struct
+{
+ HEV hev;
+ HMTX wait_mutex;
+ HMTX count_mutex;
+ int count;
+} vlc_sem_t;
+
+typedef struct
+{
+ vlc_mutex_t mutex;
+ vlc_cond_t wait;
+ unsigned long readers;
+ int writer;
+} vlc_rwlock_t;
+#define VLC_STATIC_RWLOCK \
+ { VLC_STATIC_MUTEX, VLC_STATIC_COND, 0, 0 }
typedef struct vlc_threadvar *vlc_threadvar_t;
typedef struct vlc_timer *vlc_timer_t;
+
#endif
#if defined( WIN32 ) && !defined ETIMEDOUT
#define VLC_HARD_MIN_SLEEP 10000 /* 10 milliseconds = 1 tick at 100Hz */
#define VLC_SOFT_MIN_SLEEP 9000000 /* 9 seconds */
-#if defined (__GNUC__) \
- && ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
+#if VLC_GCC_VERSION(4,3)
/* Linux has 100, 250, 300 or 1000Hz
*
* HZ=100 by default on FreeBSD, but some architectures use a 1000Hz timer
vlc_cleanup_data.proc (vlc_cleanup_data.data); \
} while (0)
+/* poll() with cancellation */
+static inline int vlc_poll (struct pollfd *fds, unsigned nfds, int timeout)
+{
+ vlc_testcancel ();
+
+ while (timeout > 50)
+ {
+ int val = poll (fds, nfds, timeout);
+ if (val != 0)
+ return val;
+ timeout -= 50;
+ vlc_testcancel ();
+ }
+
+ return poll (fds, nfds, timeout);
+}
+# define poll(u,n,t) vlc_poll(u, n, t)
+
#endif /* LIBVLC_USE_PTHREAD_CANCEL */
static inline void vlc_cleanup_lock (void *lock)