/*****************************************************************************
* threads.c : threads implementation for the VideoLAN client
*****************************************************************************
- * Copyright (C) 1999, 2000, 2001, 2002 VideoLAN
- * $Id: threads.c,v 1.32 2003/01/06 22:57:47 massiot Exp $
+ * Copyright (C) 1999-2004 VideoLAN
+ * $Id: threads.c,v 1.46 2004/02/20 17:20:01 massiot Exp $
*
* Authors: Jean-Marc Dressler <polux@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
#elif defined( ST_INIT_IN_ST_H )
#elif defined( UNDER_CE )
#elif defined( WIN32 )
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
static pthread_mutex_t once_mutex = PTHREAD_MUTEX_INITIALIZER;
#elif defined( HAVE_CTHREADS_H )
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
#endif
/*****************************************************************************
#elif defined( UNDER_CE )
#elif defined( WIN32 )
HINSTANCE hInstLib;
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
pthread_mutex_lock( &once_mutex );
#elif defined( HAVE_CTHREADS_H )
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
#endif
if( i_status == VLC_THREADS_UNINITIALIZED )
i_status = VLC_THREADS_PENDING;
/* We should be safe now. Do all the initialization stuff we want. */
- vlc_object_create( p_libvlc, VLC_OBJECT_ROOT );
p_libvlc->b_ready = VLC_FALSE;
#if defined( PTH_INIT_IN_PTH_H )
- i_ret = pth_init();
+ i_ret = ( pth_init() == FALSE );
#elif defined( ST_INIT_IN_ST_H )
i_ret = st_init();
p_libvlc->b_fast_mutex = 0;
p_libvlc->i_win9x_cv = 0;
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
#elif defined( HAVE_CTHREADS_H )
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
#endif
+ vlc_object_create( p_libvlc, VLC_OBJECT_ROOT );
+
if( i_ret )
{
i_status = VLC_THREADS_ERROR;
while( i_status == VLC_THREADS_PENDING ) msleep( THREAD_SLEEP );
#elif defined( WIN32 )
while( i_status == VLC_THREADS_PENDING ) msleep( THREAD_SLEEP );
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
+ while( i_status == VLC_THREADS_PENDING ) msleep( THREAD_SLEEP );
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
pthread_mutex_unlock( &once_mutex );
#elif defined( HAVE_CTHREADS_H )
while( i_status == VLC_THREADS_PENDING ) msleep( THREAD_SLEEP );
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- while( i_status == VLC_THREADS_PENDING ) msleep( THREAD_SLEEP );
#endif
if( i_status != VLC_THREADS_READY )
i_initializations--;
if( i_initializations == 0 )
{
- return pth_kill();
+ return ( pth_kill() == FALSE );
}
#elif defined( ST_INIT_IN_ST_H )
#elif defined( WIN32 )
i_initializations--;
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
+ i_initializations--;
+
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
pthread_mutex_lock( &once_mutex );
i_initializations--;
#elif defined( HAVE_CTHREADS_H )
i_initializations--;
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- i_initializations--;
-
#endif
return VLC_SUCCESS;
}
-/*****************************************************************************
- * Prototype for GPROF wrapper
- *****************************************************************************/
-#ifdef GPROF
-/* Wrapper function for profiling */
-static void * vlc_thread_wrapper ( void *p_wrapper );
-
-# if defined( WIN32 ) && !defined( UNDER_CE )
-
-# define ITIMER_REAL 1
-# define ITIMER_PROF 2
-
-struct itimerval
-{
- struct timeval it_value;
- struct timeval it_interval;
-};
-
-int setitimer(int kind, const struct itimerval* itnew, struct itimerval* itold);
-# endif /* WIN32 && !UNDER_CE */
-
-typedef struct wrapper_t
-{
- /* Data lock access */
- vlc_mutex_t lock;
- vlc_cond_t wait;
-
- /* Data used to spawn the real thread */
- vlc_thread_func_t func;
- void *p_data;
-
- /* Profiling timer passed to the thread */
- struct itimerval itimer;
-
-} wrapper_t;
-
-#endif /* GPROF */
-
/*****************************************************************************
* vlc_mutex_init: initialize a mutex
*****************************************************************************/
p_mutex->p_this = p_this;
#if defined( PTH_INIT_IN_PTH_H )
- return pth_mutex_init( &p_mutex->mutex );
+ return ( pth_mutex_init( &p_mutex->mutex ) == FALSE );
#elif defined( ST_INIT_IN_ST_H )
p_mutex->mutex = st_mutex_new();
return 0;
}
-#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
-# if defined(DEBUG) && defined(SYS_LINUX)
- {
- /* Create error-checking mutex to detect problems more easily. */
- pthread_mutexattr_t attr;
- int i_result;
-
- pthread_mutexattr_init( &attr );
- pthread_mutexattr_setkind_np( &attr, PTHREAD_MUTEX_ERRORCHECK_NP );
- i_result = pthread_mutex_init( &p_mutex->mutex, &attr );
- pthread_mutexattr_destroy( &attr );
- return( i_result );
- }
-# endif
- return pthread_mutex_init( &p_mutex->mutex, NULL );
-
-#elif defined( HAVE_CTHREADS_H )
- mutex_init( p_mutex );
- return 0;
-
#elif defined( HAVE_KERNEL_SCHEDULER_H )
/* check the arguments and whether it's already been initialized */
if( p_mutex == NULL )
p_mutex->init = 9999;
return B_OK;
+#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
+# if defined(DEBUG) && defined(SYS_LINUX)
+ {
+ /* Create error-checking mutex to detect problems more easily. */
+ pthread_mutexattr_t attr;
+ int i_result;
+
+ pthread_mutexattr_init( &attr );
+ pthread_mutexattr_setkind_np( &attr, PTHREAD_MUTEX_ERRORCHECK_NP );
+ i_result = pthread_mutex_init( &p_mutex->mutex, &attr );
+ pthread_mutexattr_destroy( &attr );
+ return( i_result );
+ }
+# endif
+ return pthread_mutex_init( &p_mutex->mutex, NULL );
+
+#elif defined( HAVE_CTHREADS_H )
+ mutex_init( p_mutex );
+ return 0;
+
#endif
}
}
return 0;
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
+ if( p_mutex->init == 9999 )
+ {
+ delete_sem( p_mutex->lock );
+ }
+
+ p_mutex->init = 0;
+ return B_OK;
+
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
i_result = pthread_mutex_destroy( &p_mutex->mutex );
if ( i_result )
#elif defined( HAVE_CTHREADS_H )
return 0;
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- if( p_mutex->init == 9999 )
- {
- delete_sem( p_mutex->lock );
- }
-
- p_mutex->init = 0;
- return B_OK;
#endif
if( i_result )
p_condvar->p_this = p_this;
#if defined( PTH_INIT_IN_PTH_H )
- return pth_cond_init( &p_condvar->cond );
+ return ( pth_cond_init( &p_condvar->cond ) == FALSE );
#elif defined( ST_INIT_IN_ST_H )
p_condvar->cond = st_cond_new();
return !p_condvar->semaphore || !p_condvar->event;
}
-#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
- return pthread_cond_init( &p_condvar->cond, NULL );
-
-#elif defined( HAVE_CTHREADS_H )
- /* condition_init() */
- spin_lock_init( &p_condvar->lock );
- cthread_queue_init( &p_condvar->queue );
- p_condvar->name = 0;
- p_condvar->implications = 0;
-
- return 0;
-
#elif defined( HAVE_KERNEL_SCHEDULER_H )
if( !p_condvar )
{
p_condvar->thread = -1;
p_condvar->init = 9999;
return 0;
+
+#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
+ return pthread_cond_init( &p_condvar->cond, NULL );
+
+#elif defined( HAVE_CTHREADS_H )
+ /* condition_init() */
+ spin_lock_init( &p_condvar->lock );
+ cthread_queue_init( &p_condvar->queue );
+ p_condvar->name = 0;
+ p_condvar->implications = 0;
+
+ return 0;
+
#endif
}
i_result = !CloseHandle( p_condvar->event )
|| !CloseHandle( p_condvar->semaphore );
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
+ p_condvar->init = 0;
+ return 0;
+
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
i_result = pthread_cond_destroy( &p_condvar->cond );
if ( i_result )
#elif defined( HAVE_CTHREADS_H )
return 0;
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- p_condvar->init = 0;
- return 0;
#endif
if( i_result )
int i_priority, vlc_bool_t b_wait )
{
int i_ret;
+ void *p_data = (void *)p_this;
vlc_mutex_lock( &p_this->object_lock );
-#ifdef GPROF
- wrapper_t wrapper;
-
- /* Initialize the wrapper structure */
- wrapper.func = func;
- wrapper.p_data = (void *)p_this;
- getitimer( ITIMER_PROF, &wrapper.itimer );
- vlc_mutex_init( p_this, &wrapper.lock );
- vlc_cond_init( p_this, &wrapper.wait );
- vlc_mutex_lock( &wrapper.lock );
-
- /* Alter user-passed data so that we call the wrapper instead
- * of the real function */
- p_data = &wrapper;
- func = vlc_thread_wrapper;
-#endif
-
#if defined( PTH_INIT_IN_PTH_H )
- p_this->thread_id = pth_spawn( PTH_ATTR_DEFAULT, func, (void *)p_this );
- i_ret = 0;
+ p_this->thread_id = pth_spawn( PTH_ATTR_DEFAULT, func, p_data );
+ i_ret = p_this->thread_id == NULL;
#elif defined( ST_INIT_IN_ST_H )
- p_this->thread_id = st_thread_create( func, (void *)p_this, 1, 0 );
+ p_this->thread_id = st_thread_create( func, p_data, 1, 0 );
i_ret = 0;
#elif defined( WIN32 ) || defined( UNDER_CE )
p_this->thread_id =
#if defined( UNDER_CE )
(HANDLE)CreateThread( NULL, 0, (PTHREAD_START) func,
- (void *)p_this, 0, &threadID );
+ p_data, 0, &threadID );
#else
(HANDLE)_beginthreadex( NULL, 0, (PTHREAD_START) func,
- (void *)p_this, 0, &threadID );
+ p_data, 0, &threadID );
#endif
}
i_ret = ( p_this->thread_id ? 0 : 1 );
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
+ p_this->thread_id = spawn_thread( (thread_func)func, psz_name,
+ i_priority, p_data );
+ i_ret = resume_thread( p_this->thread_id );
+
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
- i_ret = pthread_create( &p_this->thread_id, NULL, func, (void *)p_this );
+ i_ret = pthread_create( &p_this->thread_id, NULL, func, p_data );
- if ( i_priority )
+ if ( i_priority
+#ifndef SYS_DARWIN
+ && config_GetInt( p_this, "rt-priority" )
+#endif
+ )
{
- int i_error;
+ int i_error, i_policy;
struct sched_param param;
+
memset( ¶m, 0, sizeof(struct sched_param) );
- param.sched_priority = i_priority;
+ i_priority += config_GetInt( p_this, "rt-offset" );
+ if ( i_priority < 0 )
+ {
+ param.sched_priority = (-1) * i_priority;
+ i_policy = SCHED_OTHER;
+ }
+ else
+ {
+ param.sched_priority = i_priority;
+ i_policy = SCHED_RR;
+ }
if ( (i_error = pthread_setschedparam( p_this->thread_id,
- SCHED_RR, ¶m )) )
+ i_policy, ¶m )) )
{
- msg_Warn( p_this, "couldn't go to real-time priority (%s:%d): %s",
+ msg_Warn( p_this, "couldn't set thread priority (%s:%d): %s",
psz_file, i_line, strerror(i_error) );
i_priority = 0;
}
}
+ else
+ {
+ i_priority = 0;
+ }
#elif defined( HAVE_CTHREADS_H )
- p_this->thread_id = cthread_fork( (cthread_fn_t)func, (any_t)p_this );
+ p_this->thread_id = cthread_fork( (cthread_fn_t)func, (any_t)p_data );
i_ret = 0;
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- p_this->thread_id = spawn_thread( (thread_func)func, psz_name,
- B_NORMAL_PRIORITY, (void *)p_this );
- i_ret = resume_thread( p_this->thread_id );
-
-#endif
-
-#ifdef GPROF
- if( i_ret == 0 )
- {
- vlc_cond_wait( &wrapper.wait, &wrapper.lock );
- }
-
- vlc_mutex_unlock( &wrapper.lock );
- vlc_mutex_destroy( &wrapper.lock );
- vlc_cond_destroy( &wrapper.wait );
#endif
if( i_ret == 0 )
int __vlc_thread_set_priority( vlc_object_t *p_this, char * psz_file,
int i_line, int i_priority )
{
-#if defined( WIN32 ) || defined( UNDER_CE )
+#if defined( PTH_INIT_IN_PTH_H ) || defined( ST_INIT_IN_ST_H )
+#elif defined( WIN32 ) || defined( UNDER_CE )
if ( !SetThreadPriority(GetCurrentThread(), i_priority) )
{
msg_Warn( p_this, "couldn't set a faster priority" );
}
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
- if ( i_priority )
+ if ( i_priority
+#ifndef SYS_DARWIN
+ && config_GetInt( p_this, "rt-priority" )
+#endif
+ )
{
+ int i_error, i_policy;
struct sched_param param;
+
memset( ¶m, 0, sizeof(struct sched_param) );
- param.sched_priority = i_priority;
- if ( pthread_setschedparam( pthread_self(), SCHED_RR, ¶m ) )
+ i_priority += config_GetInt( p_this, "rt-offset" );
+ if ( i_priority < 0 )
+ {
+ param.sched_priority = (-1) * i_priority;
+ i_policy = SCHED_OTHER;
+ }
+ else
+ {
+ param.sched_priority = i_priority;
+ i_policy = SCHED_RR;
+ }
+ if ( (i_error = pthread_setschedparam( p_this->thread_id,
+ i_policy, ¶m )) )
{
- msg_Warn( p_this, "couldn't go to real-time priority (%s:%d)",
- psz_file, i_line );
- return 1;
+ msg_Warn( p_this, "couldn't set thread priority (%s:%d): %s",
+ psz_file, i_line, strerror(i_error) );
+ i_priority = 0;
}
}
-
-#else
- return 1;
#endif
return 0;
int i_ret = 0;
#if defined( PTH_INIT_IN_PTH_H )
- i_ret = pth_join( p_this->thread_id, NULL );
+ i_ret = ( pth_join( p_this->thread_id, NULL ) == FALSE );
#elif defined( ST_INIT_IN_ST_H )
i_ret = st_thread_join( p_this->thread_id, NULL );
#elif defined( WIN32 )
WaitForSingleObject( p_this->thread_id, INFINITE );
+#elif defined( HAVE_KERNEL_SCHEDULER_H )
+ int32_t exit_value;
+ wait_for_thread( p_this->thread_id, &exit_value );
+
#elif defined( PTHREAD_COND_T_IN_PTHREAD_H )
i_ret = pthread_join( p_this->thread_id, NULL );
cthread_join( p_this->thread_id );
i_ret = 1;
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- int32 exit_value;
- wait_for_thread( p_this->thread_id, &exit_value );
-
#endif
if( i_ret )
p_this->b_thread = 0;
}
-/*****************************************************************************
- * vlc_thread_wrapper: wrapper around thread functions used when profiling.
- *****************************************************************************/
-#ifdef GPROF
-static void *vlc_thread_wrapper( void *p_wrapper )
-{
- /* Put user data in thread-local variables */
- void * p_data = ((wrapper_t*)p_wrapper)->p_data;
- vlc_thread_func_t func = ((wrapper_t*)p_wrapper)->func;
-
- /* Set the profile timer value */
- setitimer( ITIMER_PROF, &((wrapper_t*)p_wrapper)->itimer, NULL );
-
- /* Tell the calling thread that we don't need its data anymore */
- vlc_mutex_lock( &((wrapper_t*)p_wrapper)->lock );
- vlc_cond_signal( &((wrapper_t*)p_wrapper)->wait );
- vlc_mutex_unlock( &((wrapper_t*)p_wrapper)->lock );
-
- /* Call the real function */
- return func( p_data );
-}
-#endif
projects / vlc / blobdiff