*/
#if defined( UNDER_CE )
- /* WinCE API */
+# include <errno.h> /* WinCE API */
#elif defined( WIN32 )
# include <process.h> /* Win32 API */
# include <errno.h>
/* 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)
+ THREAD_PRIORITY_ABOVE_NORMAL
# define VLC_THREAD_PRIORITY_AUDIO \
- (IS_WINNT ? THREAD_PRIORITY_HIGHEST : 0)
-# define VLC_THREAD_PRIORITY_VIDEO \
- (IS_WINNT ? 0 : THREAD_PRIORITY_BELOW_NORMAL )
+ THREAD_PRIORITY_HIGHEST
+# define VLC_THREAD_PRIORITY_VIDEO 0
# define VLC_THREAD_PRIORITY_OUTPUT \
- (IS_WINNT ? THREAD_PRIORITY_ABOVE_NORMAL : 0)
+ THREAD_PRIORITY_ABOVE_NORMAL
# define VLC_THREAD_PRIORITY_HIGHEST \
- (IS_WINNT ? THREAD_PRIORITY_TIME_CRITICAL : 0)
+ THREAD_PRIORITY_TIME_CRITICAL
#else
# define VLC_THREAD_PRIORITY_LOW 0
#if defined (LIBVLC_USE_PTHREAD)
typedef pthread_t vlc_thread_t;
typedef pthread_mutex_t vlc_mutex_t;
+#define VLC_STATIC_MUTEX PTHREAD_MUTEX_INITIALIZER
typedef pthread_cond_t vlc_cond_t;
typedef pthread_key_t vlc_threadvar_t;
-#elif defined( WIN32 ) || defined( UNDER_CE )
+#elif defined( WIN32 )
typedef struct
{
HANDLE handle;
void *data;
} *vlc_thread_t;
-typedef HANDLE vlc_mutex_t;
+typedef struct
+{
+ CRITICAL_SECTION mutex;
+ LONG initialized;
+} vlc_mutex_t;
+#define VLC_STATIC_MUTEX { .initialized = 0, }
+
typedef HANDLE vlc_cond_t;
typedef DWORD vlc_threadvar_t;
*****************************************************************************/
VLC_EXPORT( int, vlc_mutex_init, ( vlc_mutex_t * ) );
VLC_EXPORT( int, vlc_mutex_init_recursive, ( vlc_mutex_t * ) );
-VLC_EXPORT( void, __vlc_mutex_destroy, ( const char *, int, vlc_mutex_t * ) );
+VLC_EXPORT( void, vlc_mutex_destroy, ( vlc_mutex_t * ) );
+VLC_EXPORT( void, vlc_mutex_lock, ( vlc_mutex_t * ) );
+VLC_EXPORT( void, vlc_mutex_unlock, ( vlc_mutex_t * ) );
VLC_EXPORT( int, vlc_cond_init, ( vlc_cond_t * ) );
-VLC_EXPORT( void, __vlc_cond_destroy, ( const char *, int, vlc_cond_t * ) );
+VLC_EXPORT( void, vlc_cond_destroy, ( vlc_cond_t * ) );
+VLC_EXPORT( void, vlc_cond_signal, (vlc_cond_t *) );
+VLC_EXPORT( void, vlc_cond_broadcast, (vlc_cond_t *) );
+VLC_EXPORT( void, vlc_cond_wait, (vlc_cond_t *, vlc_mutex_t *) );
+VLC_EXPORT( int, vlc_cond_timedwait, (vlc_cond_t *, vlc_mutex_t *, mtime_t) );
VLC_EXPORT( int, vlc_threadvar_create, (vlc_threadvar_t * , void (*) (void *) ) );
VLC_EXPORT( void, vlc_threadvar_delete, (vlc_threadvar_t *) );
VLC_EXPORT( int, __vlc_thread_create, ( vlc_object_t *, const char *, int, const char *, void * ( * ) ( vlc_object_t * ), int, bool ) );
};
#endif
-#define vlc_thread_ready vlc_object_signal
-
-/*****************************************************************************
- * vlc_mutex_lock: lock a mutex
- *****************************************************************************/
-#define vlc_mutex_lock( P_MUTEX ) \
- __vlc_mutex_lock( __FILE__, __LINE__, P_MUTEX )
-
-VLC_EXPORT(void, vlc_thread_fatal, (const char *action, int error, const char *function, const char *file, unsigned line));
-
-#if defined(LIBVLC_USE_PTHREAD)
-# define VLC_THREAD_ASSERT( action ) \
- if (val) \
- vlc_thread_fatal (action, val, __func__, psz_file, i_line)
-#else
-# define VLC_THREAD_ASSERT ((void)(val))
-#endif
-
-static inline void __vlc_mutex_lock( const char * psz_file, int i_line,
- vlc_mutex_t * p_mutex )
-{
-#if defined(LIBVLC_USE_PTHREAD)
-# define vlc_assert_locked( m ) \
- assert (pthread_mutex_lock (m) == EDEADLK)
- int val = pthread_mutex_lock( p_mutex );
- VLC_THREAD_ASSERT ("locking mutex");
-
-#elif defined( UNDER_CE )
- (void)psz_file; (void)i_line;
-
- EnterCriticalSection( &p_mutex->csection );
-
-#elif defined( WIN32 )
- (void)psz_file; (void)i_line;
-
- WaitForSingleObject( *p_mutex, INFINITE );
-
-#endif
-}
-
-#ifndef vlc_assert_locked
-# define vlc_assert_locked( m ) (void)m
-#endif
-
-/*****************************************************************************
- * vlc_mutex_unlock: unlock a mutex
- *****************************************************************************/
-#define vlc_mutex_unlock( P_MUTEX ) \
- __vlc_mutex_unlock( __FILE__, __LINE__, P_MUTEX )
-
-static inline void __vlc_mutex_unlock( const char * psz_file, int i_line,
- vlc_mutex_t *p_mutex )
-{
-#if defined(LIBVLC_USE_PTHREAD)
- int val = pthread_mutex_unlock( p_mutex );
- VLC_THREAD_ASSERT ("unlocking mutex");
-
-#elif defined( UNDER_CE )
- (void)psz_file; (void)i_line;
-
- LeaveCriticalSection( &p_mutex->csection );
-
-#elif defined( WIN32 )
- (void)psz_file; (void)i_line;
-
- ReleaseMutex( *p_mutex );
-
-#endif
-}
-
-/*****************************************************************************
- * vlc_mutex_destroy: destroy a mutex
- *****************************************************************************/
-#define vlc_mutex_destroy( P_MUTEX ) \
- __vlc_mutex_destroy( __FILE__, __LINE__, P_MUTEX )
+VLC_EXPORT(void, vlc_thread_ready, (vlc_object_t *obj));
+#define vlc_thread_ready(o) vlc_thread_ready(VLC_OBJECT(o))
/**
* Save the cancellation state and disable cancellation for the calling thread.
}
#define mutex_cleanup_push( lock ) vlc_cleanup_push (vlc_cleanup_lock, lock)
-/*****************************************************************************
- * vlc_cond_signal: start a thread on condition completion
- *****************************************************************************/
-#define vlc_cond_signal( P_COND ) \
- __vlc_cond_signal( __FILE__, __LINE__, P_COND )
-
-static inline void __vlc_cond_signal( const char * psz_file, int i_line,
- vlc_cond_t *p_condvar )
-{
-#if defined(LIBVLC_USE_PTHREAD)
- int val = pthread_cond_signal( p_condvar );
- VLC_THREAD_ASSERT ("signaling condition variable");
-
-#elif defined( UNDER_CE ) || defined( WIN32 )
- (void)psz_file; (void)i_line;
-
- /* Release one waiting thread if one is available. */
- /* For this trick to work properly, the vlc_cond_signal must be surrounded
- * by a mutex. This will prevent another thread from stealing the signal */
- /* PulseEvent() only works if none of the waiting threads is suspended.
- * This is particularily problematic under a debug session.
- * as documented in http://support.microsoft.com/kb/q173260/ */
- PulseEvent( *p_condvar );
-
-#endif
-}
-
-/*****************************************************************************
- * vlc_cond_wait: wait until condition completion
- *****************************************************************************/
-#define vlc_cond_wait( P_COND, P_MUTEX ) \
- __vlc_cond_wait( __FILE__, __LINE__, P_COND, P_MUTEX )
-
-static inline void __vlc_cond_wait( const char * psz_file, int i_line,
- vlc_cond_t *p_condvar, vlc_mutex_t *p_mutex )
-{
-#if defined(LIBVLC_USE_PTHREAD)
- int val = pthread_cond_wait( p_condvar, p_mutex );
- VLC_THREAD_ASSERT ("waiting on condition");
-
-#elif defined( UNDER_CE )
- LeaveCriticalSection( &p_mutex->csection );
- WaitForSingleObject( *p_condvar, INFINITE );
-
- /* Reacquire the mutex before returning. */
- vlc_mutex_lock( p_mutex );
-
-#elif defined( WIN32 )
- do
- vlc_testcancel ();
- while (SignalObjectAndWait (*p_mutex, *p_condvar, INFINITE, TRUE)
- == WAIT_IO_COMPLETION);
-
- /* Reacquire the mutex before returning. */
- vlc_mutex_lock( p_mutex );
-
- (void)psz_file; (void)i_line;
-
-#endif
-}
-
-
-/*****************************************************************************
- * vlc_cond_timedwait: wait until condition completion or expiration
- *****************************************************************************
- * Returns 0 if object signaled, an error code in case of timeout or error.
- *****************************************************************************/
-#define vlc_cond_timedwait( c, m, d ) \
- __vlc_cond_timedwait( __FILE__, __LINE__, c, m, check_deadline(d) )
-
-static inline int __vlc_cond_timedwait( const char * psz_file, int i_line,
- vlc_cond_t *p_condvar,
- vlc_mutex_t *p_mutex,
- mtime_t deadline )
-{
-#if defined(LIBVLC_USE_PTHREAD)
- lldiv_t d = lldiv( deadline, CLOCK_FREQ );
- struct timespec ts = { d.quot, d.rem * (1000000000 / CLOCK_FREQ) };
-
- int val = pthread_cond_timedwait (p_condvar, p_mutex, &ts);
- if (val != ETIMEDOUT)
- VLC_THREAD_ASSERT ("timed-waiting on condition");
- return val;
-
-#elif defined( UNDER_CE )
- mtime_t delay_ms = (deadline - mdate()) / (CLOCK_FREQ / 1000);
- DWORD result;
- if( delay_ms < 0 )
- delay_ms = 0;
-
- LeaveCriticalSection( &p_mutex->csection );
- result = WaitForSingleObject( *p_condvar, delay_ms );
-
- /* Reacquire the mutex before returning. */
- vlc_mutex_lock( p_mutex );
-
- (void)psz_file; (void)i_line;
-
- return (result == WAIT_TIMEOUT) ? ETIMEDOUT : 0;
-
-#elif defined( WIN32 )
- DWORD result;
-
- (void)psz_file; (void)i_line;
-
- do
- {
- vlc_testcancel ();
-
- mtime_t total = (deadline - mdate ())/1000;
- if( total < 0 )
- total = 0;
-
- DWORD delay = (total > 0x7fffffff) ? 0x7fffffff : total;
- result = SignalObjectAndWait (*p_mutex, *p_condvar, delay, TRUE);
- }
- while (result == WAIT_IO_COMPLETION);
-
- /* Reacquire the mutex before return/cancel. */
- vlc_mutex_lock (p_mutex);
- return (result == WAIT_OBJECT_0) ? 0 : ETIMEDOUT;
-
-#endif
-}
-
-/*****************************************************************************
- * vlc_cond_destroy: destroy a condition
- *****************************************************************************/
-#define vlc_cond_destroy( P_COND ) \
- __vlc_cond_destroy( __FILE__, __LINE__, P_COND )
-
/*****************************************************************************
* vlc_threadvar_set: create: set the value of a thread-local variable
*****************************************************************************/
*/
static inline int vlc_spin_init (vlc_spinlock_t *spin)
{
+#ifdef UNDER_CE
+ InitializeCriticalSection(spin);
+ return 0;
+#else
return !InitializeCriticalSectionAndSpinCount(spin, 4000);
+#endif
}
/**
#endif
static inline void barrier (void)
{
-#if defined (__GNUC__) && (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
+#if defined (__GNUC__) && \
+ ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1))
__sync_synchronize ();
#elif defined(__APPLE__)
OSMemoryBarrier ();
#elif defined(__powerpc__)
asm volatile ("sync":::"memory");
-#elif defined(__i386__)
+#elif 0 // defined(__i386__) /* Requires SSE2 support */
asm volatile ("mfence":::"memory");
#else
vlc_spinlock_t spin;
#define vlc_thread_join( P_THIS ) \
__vlc_thread_join( VLC_OBJECT(P_THIS) )
+#ifdef __cplusplus
+/**
+ * Helper C++ class to lock a mutex.
+ * The mutex is locked when the object is created, and unlocked when the object
+ * is destroyed.
+ */
+class vlc_mutex_locker
+{
+ private:
+ vlc_mutex_t *lock;
+ public:
+ vlc_mutex_locker (vlc_mutex_t *m) : lock (m)
+ {
+ vlc_mutex_lock (lock);
+ }
+
+ ~vlc_mutex_locker (void)
+ {
+ vlc_mutex_unlock (lock);
+ }
+};
+#endif
+
#endif /* !_VLC_THREADS_H */
projects / vlc / blobdiff