Commit 1746fdda authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont

vlc_threadobj(): returns the object nesting the current thread

Also fix the threads entry point prototype on Windows.
parent 94f55c60
...@@ -45,6 +45,7 @@ void system_End ( libvlc_int_t * ); ...@@ -45,6 +45,7 @@ void system_End ( libvlc_int_t * );
*/ */
int vlc_threads_init( void ); int vlc_threads_init( void );
void vlc_threads_end( void ); void vlc_threads_end( void );
vlc_object_t *vlc_threadobj (void);
/* /*
* CPU capabilities * CPU capabilities
......
...@@ -86,6 +86,7 @@ static void vlc_object_detach_unlocked (vlc_object_t *p_this); ...@@ -86,6 +86,7 @@ static void vlc_object_detach_unlocked (vlc_object_t *p_this);
* Local structure lock * Local structure lock
*****************************************************************************/ *****************************************************************************/
static vlc_mutex_t structure_lock; static vlc_mutex_t structure_lock;
static vlc_threadvar_t thread_object;
void *vlc_custom_create( vlc_object_t *p_this, size_t i_size, void *vlc_custom_create( vlc_object_t *p_this, size_t i_size,
int i_type, const char *psz_type ) int i_type, const char *psz_type )
......
...@@ -62,6 +62,15 @@ libvlc_global_data_t *vlc_global( void ) ...@@ -62,6 +62,15 @@ libvlc_global_data_t *vlc_global( void )
return p_root; return p_root;
} }
/**
* Object running the current thread
*/
static vlc_threadvar_t thread_object_key;
vlc_object_t *vlc_threadobj (void)
{
return vlc_threadvar_get (&thread_object_key);
}
vlc_threadvar_t msg_context_global_key; vlc_threadvar_t msg_context_global_key;
...@@ -150,6 +159,7 @@ int vlc_threads_init( void ) ...@@ -150,6 +159,7 @@ int vlc_threads_init( void )
} }
/* We should be safe now. Do all the initialization stuff we want. */ /* We should be safe now. Do all the initialization stuff we want. */
vlc_threadvar_create( &thread_object_key, NULL );
vlc_threadvar_create( &msg_context_global_key, msg_StackDestroy ); vlc_threadvar_create( &msg_context_global_key, msg_StackDestroy );
} }
i_initializations++; i_initializations++;
...@@ -181,6 +191,7 @@ void vlc_threads_end( void ) ...@@ -181,6 +191,7 @@ void vlc_threads_end( void )
{ {
vlc_object_release( p_root ); vlc_object_release( p_root );
vlc_threadvar_delete( &msg_context_global_key ); vlc_threadvar_delete( &msg_context_global_key );
vlc_threadvar_delete( &thread_object_key );
} }
i_initializations--; i_initializations--;
...@@ -411,6 +422,33 @@ void vlc_threadvar_delete (vlc_threadvar_t *p_tls) ...@@ -411,6 +422,33 @@ void vlc_threadvar_delete (vlc_threadvar_t *p_tls)
#endif #endif
} }
struct vlc_thread_boot
{
void * (*entry) (void *);
vlc_object_t *object;
};
#if defined (LIBVLC_USE_PTHREAD)
# define THREAD_RTYPE void *
# define THREAD_RVAL NULL
#elif defined (WIN32)
# define THREAD_RTYPE __stdcall unsigned
# define THREAD_RVAL 0
#endif
static THREAD_RTYPE thread_entry (void *data)
{
vlc_object_t *obj = ((struct vlc_thread_boot *)data)->object;
void *(*func) (void *) = ((struct vlc_thread_boot *)data)->entry;
free (data);
vlc_threadvar_set (&thread_object_key, obj);
msg_Dbg (obj, "thread started");
func (obj);
msg_Dbg (obj, "thread ended");
return THREAD_RVAL;
}
/***************************************************************************** /*****************************************************************************
* vlc_thread_create: create a thread, inner version * vlc_thread_create: create a thread, inner version
***************************************************************************** *****************************************************************************
...@@ -422,13 +460,18 @@ int __vlc_thread_create( vlc_object_t *p_this, const char * psz_file, int i_line ...@@ -422,13 +460,18 @@ int __vlc_thread_create( vlc_object_t *p_this, const char * psz_file, int i_line
int i_priority, bool b_wait ) int i_priority, bool b_wait )
{ {
int i_ret; int i_ret;
void *p_data = (void *)p_this;
vlc_object_internals_t *p_priv = vlc_internals( p_this ); vlc_object_internals_t *p_priv = vlc_internals( p_this );
struct vlc_thread_boot *boot = malloc (sizeof (*boot));
if (boot == NULL)
return errno;
boot->entry = func;
boot->object = p_this;
vlc_mutex_lock( &p_this->object_lock ); vlc_mutex_lock( &p_this->object_lock );
#if defined( LIBVLC_USE_PTHREAD ) #if defined( LIBVLC_USE_PTHREAD )
i_ret = pthread_create( &p_priv->thread_id, NULL, func, p_data ); i_ret = pthread_create( &p_priv->thread_id, NULL, thread_entry, boot );
#ifndef __APPLE__ #ifndef __APPLE__
if( config_GetInt( p_this, "rt-priority" ) > 0 ) if( config_GetInt( p_this, "rt-priority" ) > 0 )
...@@ -471,13 +514,13 @@ int __vlc_thread_create( vlc_object_t *p_this, const char * psz_file, int i_line ...@@ -471,13 +514,13 @@ int __vlc_thread_create( vlc_object_t *p_this, const char * psz_file, int i_line
* memory leaks and the signal functions not working (see Microsoft * memory leaks and the signal functions not working (see Microsoft
* Knowledge Base, article 104641) */ * Knowledge Base, article 104641) */
#if defined( UNDER_CE ) #if defined( UNDER_CE )
HANDLE hThread = CreateThread( NULL, 0, (LPTHREAD_START_ROUTINE)func, HANDLE hThread = CreateThread( NULL, 0, thread_entry,
(LPVOID)p_data, CREATE_SUSPENDED, (LPVOID)boot, CREATE_SUSPENDED,
NULL ); NULL );
#else #else
HANDLE hThread = (HANDLE)(uintptr_t) HANDLE hThread = (HANDLE)(uintptr_t)
_beginthreadex( NULL, 0, (LPTHREAD_START_ROUTINE)func, _beginthreadex( NULL, 0, thread_entry, boot,
(void *)p_data, CREATE_SUSPENDED, NULL ); CREATE_SUSPENDED, NULL );
#endif #endif
p_priv->thread_id = hThread; p_priv->thread_id = hThread;
ResumeThread(hThread); ResumeThread(hThread);
...@@ -495,7 +538,7 @@ int __vlc_thread_create( vlc_object_t *p_this, const char * psz_file, int i_line ...@@ -495,7 +538,7 @@ int __vlc_thread_create( vlc_object_t *p_this, const char * psz_file, int i_line
} }
#elif defined( HAVE_KERNEL_SCHEDULER_H ) #elif defined( HAVE_KERNEL_SCHEDULER_H )
p_priv->thread_id = spawn_thread( (thread_func)func, psz_name, p_priv->thread_id = spawn_thread( (thread_func)thread_entry, psz_name,
i_priority, p_data ); i_priority, p_data );
i_ret = resume_thread( p_priv->thread_id ); i_ret = resume_thread( p_priv->thread_id );
......
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