* Samuel Hocevar <sam@zoy.org>
* Gildas Bazin <gbazin@netcourrier.com>
* Clément Sténac
+ * Rémi Denis-Courmont
*
* 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
#include <vlc_common.h>
#include "libvlc.h"
-#include <stdarg.h>
#include <assert.h>
+#include <errno.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
-#include <signal.h>
-
-#define VLC_THREADS_UNINITIALIZED 0
-#define VLC_THREADS_PENDING 1
-#define VLC_THREADS_ERROR 2
-#define VLC_THREADS_READY 3
-
-/*****************************************************************************
- * Global mutex for lazy initialization of the threads system
- *****************************************************************************/
-static volatile unsigned i_initializations = 0;
#if defined( LIBVLC_USE_PTHREAD )
# include <sched.h>
-
-static pthread_mutex_t once_mutex = PTHREAD_MUTEX_INITIALIZER;
-#endif
-
-/**
- * Global process-wide VLC object.
- * Contains inter-instance data, such as the module cache and global mutexes.
- */
-static libvlc_global_data_t *p_root;
-
-libvlc_global_data_t *vlc_global( void )
-{
- assert( i_initializations > 0 );
- return p_root;
-}
-
-#ifndef NDEBUG
-/**
- * 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);
-}
-#endif
-
-vlc_threadvar_t msg_context_global_key;
-
-#if defined(LIBVLC_USE_PTHREAD)
-static inline unsigned long vlc_threadid (void)
-{
- union { pthread_t th; unsigned long int i; } v = { };
- v.th = pthread_self ();
- return v.i;
-}
-
-#if defined(HAVE_EXECINFO_H) && defined(HAVE_BACKTRACE)
-# include <execinfo.h>
-#endif
-
-/*****************************************************************************
- * vlc_thread_fatal: Report an error from the threading layer
- *****************************************************************************
- * This is mostly meant for debugging.
- *****************************************************************************/
-void vlc_pthread_fatal (const char *action, int error,
- const char *file, unsigned line)
-{
- fprintf (stderr, "LibVLC fatal error %s in thread %lu at %s:%u: %d\n",
- action, vlc_threadid (), file, line, error);
-
- /* Sometimes strerror_r() crashes too, so make sure we print an error
- * message before we invoke it */
-#ifdef __GLIBC__
- /* Avoid the strerror_r() prototype brain damage in glibc */
- errno = error;
- fprintf (stderr, " Error message: %m at:\n");
-#else
- char buf[1000];
- const char *msg;
-
- switch (strerror_r (error, buf, sizeof (buf)))
- {
- case 0:
- msg = buf;
- break;
- case ERANGE: /* should never happen */
- msg = "unknwon (too big to display)";
- break;
- default:
- msg = "unknown (invalid error number)";
- break;
- }
- fprintf (stderr, " Error message: %s\n", msg);
-#endif
- fflush (stderr);
-
-#ifdef HAVE_BACKTRACE
- void *stack[20];
- int len = backtrace (stack, sizeof (stack) / sizeof (stack[0]));
- backtrace_symbols_fd (stack, len, 2);
-#endif
-
- abort ();
-}
-#else
-void vlc_pthread_fatal (const char *action, int error,
- const char *file, unsigned line)
-{
- (void)action; (void)error; (void)file; (void)line;
- abort();
-}
-
-static vlc_threadvar_t cancel_key;
-#endif
-
-/**
- * Per-thread cancellation data
- */
-#ifndef LIBVLC_USE_PTHREAD_CANCEL
-typedef struct vlc_cancel_t
-{
- vlc_cleanup_t *cleaners;
- bool killable;
- bool killed;
-} vlc_cancel_t;
-
-# define VLC_CANCEL_INIT { NULL, false, true }
-#endif
-
-/*****************************************************************************
- * vlc_threads_init: initialize threads system
- *****************************************************************************
- * This function requires lazy initialization of a global lock in order to
- * keep the library really thread-safe. Some architectures don't support this
- * and thus do not guarantee the complete reentrancy.
- *****************************************************************************/
-int vlc_threads_init( void )
-{
- int i_ret = VLC_SUCCESS;
-
- /* If we have lazy mutex initialization, use it. Otherwise, we just
- * hope nothing wrong happens. */
-#if defined( LIBVLC_USE_PTHREAD )
- pthread_mutex_lock( &once_mutex );
-#endif
-
- if( i_initializations == 0 )
- {
- p_root = vlc_custom_create( (vlc_object_t *)NULL, sizeof( *p_root ),
- VLC_OBJECT_GENERIC, "root" );
- if( p_root == NULL )
- {
- i_ret = VLC_ENOMEM;
- goto out;
- }
-
- /* We should be safe now. Do all the initialization stuff we want. */
-#ifndef NDEBUG
- vlc_threadvar_create( &thread_object_key, NULL );
-#endif
- vlc_threadvar_create( &msg_context_global_key, msg_StackDestroy );
-#ifndef LIBVLC_USE_PTHREAD_CANCEL
- vlc_threadvar_create( &cancel_key, free );
-#endif
- }
- i_initializations++;
-
-out:
- /* If we have lazy mutex initialization support, unlock the mutex.
- * Otherwize, we are screwed. */
-#if defined( LIBVLC_USE_PTHREAD )
- pthread_mutex_unlock( &once_mutex );
-#endif
-
- return i_ret;
-}
-
-/*****************************************************************************
- * vlc_threads_end: stop threads system
- *****************************************************************************
- * FIXME: This function is far from being threadsafe.
- *****************************************************************************/
-void vlc_threads_end( void )
-{
-#if defined( LIBVLC_USE_PTHREAD )
- pthread_mutex_lock( &once_mutex );
-#endif
-
- assert( i_initializations > 0 );
-
- if( i_initializations == 1 )
- {
- vlc_object_release( p_root );
-#ifndef LIBVLC_USE_PTHREAD
- vlc_threadvar_delete( &cancel_key );
-#endif
- vlc_threadvar_delete( &msg_context_global_key );
-#ifndef NDEBUG
- vlc_threadvar_delete( &thread_object_key );
-#endif
- }
- i_initializations--;
-
-#if defined( LIBVLC_USE_PTHREAD )
- pthread_mutex_unlock( &once_mutex );
-#endif
-}
-
-#if defined (__GLIBC__) && (__GLIBC_MINOR__ < 6)
-/* This is not prototyped under glibc, though it exists. */
-int pthread_mutexattr_setkind_np( pthread_mutexattr_t *attr, int kind );
-#endif
-
-/*****************************************************************************
- * vlc_mutex_init: initialize a mutex
- *****************************************************************************/
-int vlc_mutex_init( vlc_mutex_t *p_mutex )
-{
-#if defined( LIBVLC_USE_PTHREAD )
- pthread_mutexattr_t attr;
- int i_result;
-
- pthread_mutexattr_init( &attr );
-
-# ifndef NDEBUG
- /* Create error-checking mutex to detect problems more easily. */
-# if defined (__GLIBC__) && (__GLIBC_MINOR__ < 6)
- pthread_mutexattr_setkind_np( &attr, PTHREAD_MUTEX_ERRORCHECK_NP );
-# else
- pthread_mutexattr_settype( &attr, PTHREAD_MUTEX_ERRORCHECK );
-# endif
-# endif
- i_result = pthread_mutex_init( p_mutex, &attr );
- pthread_mutexattr_destroy( &attr );
- return i_result;
-#elif defined( UNDER_CE )
- InitializeCriticalSection( &p_mutex->csection );
- return 0;
-
-#elif defined( WIN32 )
- *p_mutex = CreateMutex( 0, FALSE, 0 );
- return (*p_mutex != NULL) ? 0 : ENOMEM;
-
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- /* check the arguments and whether it's already been initialized */
- if( p_mutex == NULL )
- {
- return B_BAD_VALUE;
- }
-
- if( p_mutex->init == 9999 )
- {
- return EALREADY;
- }
-
- p_mutex->lock = create_sem( 1, "BeMutex" );
- if( p_mutex->lock < B_NO_ERROR )
- {
- return( -1 );
- }
-
- p_mutex->init = 9999;
- return B_OK;
-
-#endif
-}
-
-/*****************************************************************************
- * vlc_mutex_init: initialize a recursive mutex (Do not use)
- *****************************************************************************/
-int vlc_mutex_init_recursive( vlc_mutex_t *p_mutex )
-{
-#if defined( LIBVLC_USE_PTHREAD )
- pthread_mutexattr_t attr;
- int i_result;
-
- pthread_mutexattr_init( &attr );
-# if defined (__GLIBC__) && (__GLIBC_MINOR__ < 6)
- pthread_mutexattr_setkind_np( &attr, PTHREAD_MUTEX_RECURSIVE_NP );
-# else
- pthread_mutexattr_settype( &attr, PTHREAD_MUTEX_RECURSIVE );
-# endif
- i_result = pthread_mutex_init( p_mutex, &attr );
- pthread_mutexattr_destroy( &attr );
- return( i_result );
-#elif defined( WIN32 )
- /* Create mutex returns a recursive mutex */
- *p_mutex = CreateMutex( 0, FALSE, 0 );
- return (*p_mutex != NULL) ? 0 : ENOMEM;
-#else
-# error Unimplemented!
-#endif
-}
-
-
-/*****************************************************************************
- * vlc_mutex_destroy: destroy a mutex, inner version
- *****************************************************************************/
-void __vlc_mutex_destroy( const char * psz_file, int i_line, vlc_mutex_t *p_mutex )
-{
-#if defined( LIBVLC_USE_PTHREAD )
- int val = pthread_mutex_destroy( p_mutex );
- VLC_THREAD_ASSERT ("destroying mutex");
-
-#elif defined( UNDER_CE )
- VLC_UNUSED( psz_file); VLC_UNUSED( i_line );
-
- DeleteCriticalSection( &p_mutex->csection );
-
-#elif defined( WIN32 )
- VLC_UNUSED( psz_file); VLC_UNUSED( i_line );
-
- CloseHandle( *p_mutex );
-
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- if( p_mutex->init == 9999 )
- delete_sem( p_mutex->lock );
-
- p_mutex->init = 0;
-
-#endif
-}
-
-/*****************************************************************************
- * vlc_cond_init: initialize a condition
- *****************************************************************************/
-int __vlc_cond_init( vlc_cond_t *p_condvar )
-{
-#if defined( LIBVLC_USE_PTHREAD )
- pthread_condattr_t attr;
- int ret;
-
- ret = pthread_condattr_init (&attr);
- if (ret)
- return ret;
-
-# if !defined (_POSIX_CLOCK_SELECTION)
- /* Fairly outdated POSIX support (that was defined in 2001) */
-# define _POSIX_CLOCK_SELECTION (-1)
-# endif
-# if (_POSIX_CLOCK_SELECTION >= 0)
- /* NOTE: This must be the same clock as the one in mtime.c */
- pthread_condattr_setclock (&attr, CLOCK_MONOTONIC);
-# endif
-
- ret = pthread_cond_init (p_condvar, &attr);
- pthread_condattr_destroy (&attr);
- return ret;
-
-#elif defined( UNDER_CE ) || defined( WIN32 )
- /* Create an auto-reset event. */
- *p_condvar = CreateEvent( NULL, /* no security */
- FALSE, /* auto-reset event */
- FALSE, /* start non-signaled */
- NULL ); /* unnamed */
- return *p_condvar ? 0 : ENOMEM;
-
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- if( !p_condvar )
- {
- return B_BAD_VALUE;
- }
-
- if( p_condvar->init == 9999 )
- {
- return EALREADY;
- }
-
- p_condvar->thread = -1;
- p_condvar->init = 9999;
- return 0;
-
-#endif
-}
-
-/*****************************************************************************
- * vlc_cond_destroy: destroy a condition, inner version
- *****************************************************************************/
-void __vlc_cond_destroy( const char * psz_file, int i_line, vlc_cond_t *p_condvar )
-{
-#if defined( LIBVLC_USE_PTHREAD )
- int val = pthread_cond_destroy( p_condvar );
- VLC_THREAD_ASSERT ("destroying condition");
-
-#elif defined( UNDER_CE ) || defined( WIN32 )
- VLC_UNUSED( psz_file); VLC_UNUSED( i_line );
-
- CloseHandle( *p_condvar );
-
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- p_condvar->init = 0;
-
-#endif
-}
-
-/*****************************************************************************
- * vlc_tls_create: create a thread-local variable
- *****************************************************************************/
-int vlc_threadvar_create( vlc_threadvar_t *p_tls, void (*destr) (void *) )
-{
- int i_ret;
-
-#if defined( LIBVLC_USE_PTHREAD )
- i_ret = pthread_key_create( p_tls, destr );
-#elif defined( UNDER_CE )
- i_ret = ENOSYS;
-#elif defined( WIN32 )
- /* FIXME: remember/use the destr() callback and stop leaking whatever */
- *p_tls = TlsAlloc();
- i_ret = (*p_tls == TLS_OUT_OF_INDEXES) ? EAGAIN : 0;
-#else
-# error Unimplemented!
-#endif
- return i_ret;
-}
-
-void vlc_threadvar_delete (vlc_threadvar_t *p_tls)
-{
-#if defined( LIBVLC_USE_PTHREAD )
- pthread_key_delete (*p_tls);
-#elif defined( UNDER_CE )
-#elif defined( WIN32 )
- TlsFree (*p_tls);
-#else
-# error Unimplemented!
-#endif
-}
-
-#if defined (LIBVLC_USE_PTHREAD)
-#elif defined (WIN32)
-static unsigned __stdcall vlc_entry (void *data)
-{
- vlc_cancel_t cancel_data = VLC_CANCEL_INIT;
- vlc_thread_t self = data;
-
- vlc_threadvar_set (&cancel_key, &cancel_data);
- self->data = self->entry (self->data);
- return 0;
-}
-#endif
-
-/**
- * Creates and starts new thread.
- *
- * @param p_handle [OUT] pointer to write the handle of the created thread to
- * @param entry entry point for the thread
- * @param data data parameter given to the entry point
- * @param priority thread priority value
- * @return 0 on success, a standard error code on error.
- */
-int vlc_clone (vlc_thread_t *p_handle, void * (*entry) (void *), void *data,
- int priority)
-{
- int ret;
-
-#if defined( LIBVLC_USE_PTHREAD )
- pthread_attr_t attr;
- pthread_attr_init (&attr);
-
- /* Block the signals that signals interface plugin handles.
- * If the LibVLC caller wants to handle some signals by itself, it should
- * block these before whenever invoking LibVLC. And it must obviously not
- * start the VLC signals interface plugin.
- *
- * LibVLC will normally ignore any interruption caused by an asynchronous
- * signal during a system call. But there may well be some buggy cases
- * where it fails to handle EINTR (bug reports welcome). Some underlying
- * libraries might also not handle EINTR properly.
- */
- sigset_t oldset;
- {
- sigset_t set;
- sigemptyset (&set);
- sigdelset (&set, SIGHUP);
- sigaddset (&set, SIGINT);
- sigaddset (&set, SIGQUIT);
- sigaddset (&set, SIGTERM);
-
- sigaddset (&set, SIGPIPE); /* We don't want this one, really! */
- pthread_sigmask (SIG_BLOCK, &set, &oldset);
- }
- {
- struct sched_param sp = { .sched_priority = priority, };
- int policy;
-
- if (sp.sched_priority <= 0)
- sp.sched_priority += sched_get_priority_max (policy = SCHED_OTHER);
- else
- sp.sched_priority += sched_get_priority_min (policy = SCHED_RR);
-
- pthread_attr_setschedpolicy (&attr, policy);
- pthread_attr_setschedparam (&attr, &sp);
- }
-
- ret = pthread_create (p_handle, &attr, entry, data);
- pthread_sigmask (SIG_SETMASK, &oldset, NULL);
- pthread_attr_destroy (&attr);
-
-#elif defined( WIN32 ) || defined( UNDER_CE )
- /* When using the MSVCRT C library you have to use the _beginthreadex
- * function instead of CreateThread, otherwise you'll end up with
- * memory leaks and the signal functions not working (see Microsoft
- * Knowledge Base, article 104641) */
- HANDLE hThread;
- vlc_thread_t th = malloc (sizeof (*p_handle));
-
- if (th == NULL)
- return ENOMEM;
-
- th->data = data;
- th->entry = entry;
-#if defined( UNDER_CE )
- hThread = CreateThread (NULL, 0, vlc_entry, th, CREATE_SUSPENDED, NULL);
-#else
- hThread = (HANDLE)(uintptr_t)
- _beginthreadex (NULL, 0, vlc_entry, th, CREATE_SUSPENDED, NULL);
-#endif
-
- if (hThread)
- {
- /* Thread closes the handle when exiting, duplicate it here
- * to be on the safe side when joining. */
- if (!DuplicateHandle (GetCurrentProcess (), hThread,
- GetCurrentProcess (), &th->handle, 0, FALSE,
- DUPLICATE_SAME_ACCESS))
- {
- CloseHandle (hThread);
- free (th);
- return ENOMEM;
- }
-
- ResumeThread (hThread);
- if (priority)
- SetThreadPriority (hThread, priority);
-
- ret = 0;
- *p_handle = th;
- }
- else
- {
- ret = errno;
- free (th);
- }
-
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- *p_handle = spawn_thread( entry, psz_name, priority, data );
- ret = resume_thread( *p_handle );
-
-#endif
- return ret;
-}
-
-#if defined (WIN32)
-/* APC procedure for thread cancellation */
-static void CALLBACK vlc_cancel_self (ULONG_PTR dummy)
-{
- (void)dummy;
- vlc_control_cancel (VLC_DO_CANCEL);
-}
-#endif
-
-/**
- * Marks a thread as cancelled. Next time the target thread reaches a
- * cancellation point (while not having disabled cancellation), it will
- * run its cancellation cleanup handler, the thread variable destructors, and
- * terminate. vlc_join() must be used afterward regardless of a thread being
- * cancelled or not.
- */
-void vlc_cancel (vlc_thread_t thread_id)
-{
-#if defined (LIBVLC_USE_PTHREAD_CANCEL)
- pthread_cancel (thread_id);
-#elif defined (WIN32)
- QueueUserAPC (vlc_cancel_self, thread_id->handle, 0);
-#else
-# warning vlc_cancel is not implemented!
-#endif
-}
-
-/**
- * Waits for a thread to complete (if needed), and destroys it.
- * This is a cancellation point; in case of cancellation, the join does _not_
- * occur.
- *
- * @param handle thread handle
- * @param p_result [OUT] pointer to write the thread return value or NULL
- * @return 0 on success, a standard error code otherwise.
- */
-void vlc_join (vlc_thread_t handle, void **result)
-{
-#if defined( LIBVLC_USE_PTHREAD )
- int val = pthread_join (handle, result);
- if (val)
- vlc_pthread_fatal ("joining thread", val, __FILE__, __LINE__);
-
-#elif defined( UNDER_CE ) || defined( WIN32 )
- do
- vlc_testcancel ();
- while (WaitForSingleObjectEx (handle->handle, INFINITE, TRUE)
- == WAIT_IO_COMPLETION);
-
- CloseHandle (handle->handle);
- if (result)
- *result = handle->data;
- free (handle);
-
-#elif defined( HAVE_KERNEL_SCHEDULER_H )
- int32_t exit_value;
- int val = (B_OK == wait_for_thread( p_priv->thread_id, &exit_value ));
- if( !val && result )
- *result = (void *)exit_value;
-
#endif
-}
-
struct vlc_thread_boot
{
void *(*func) (vlc_object_t *) = ((struct vlc_thread_boot *)data)->entry;
free (data);
-#ifndef NDEBUG
- vlc_threadvar_set (&thread_object_key, obj);
-#endif
msg_Dbg (obj, "thread started");
func (obj);
msg_Dbg (obj, "thread ended");
return NULL;
}
+#undef vlc_thread_create
/*****************************************************************************
- * vlc_thread_create: create a thread, inner version
+ * vlc_thread_create: create a thread
*****************************************************************************
* Note that i_priority is only taken into account on platforms supporting
* userland real-time priority threads.
*****************************************************************************/
-int __vlc_thread_create( vlc_object_t *p_this, const char * psz_file, int i_line,
- const char *psz_name, void * ( *func ) ( vlc_object_t * ),
- int i_priority, bool b_wait )
+int vlc_thread_create( vlc_object_t *p_this, const char * psz_file, int i_line,
+ const char *psz_name, void *(*func) ( vlc_object_t * ),
+ int i_priority )
{
int i_ret;
vlc_object_internals_t *p_priv = vlc_internals( p_this );
boot->entry = func;
boot->object = p_this;
- vlc_object_lock( p_this );
-
/* Make sure we don't re-create a thread if the object has already one */
assert( !p_priv->b_thread );
-#if defined( LIBVLC_USE_PTHREAD )
-#ifndef __APPLE__
- if( config_GetInt( p_this, "rt-priority" ) > 0 )
-#endif
- {
- /* Hack to avoid error msg */
- if( config_GetType( p_this, "rt-offset" ) )
- i_priority += config_GetInt( p_this, "rt-offset" );
- }
-#endif
-
+ p_priv->b_thread = true;
i_ret = vlc_clone( &p_priv->thread_id, thread_entry, boot, i_priority );
if( i_ret == 0 )
- {
- if( b_wait )
- {
- msg_Dbg( p_this, "waiting for thread initialization" );
- vlc_object_wait( p_this );
- }
-
- p_priv->b_thread = true;
- msg_Dbg( p_this, "thread %lu (%s) created at priority %d (%s:%d)",
- (unsigned long)p_priv->thread_id, psz_name, i_priority,
- psz_file, i_line );
- }
+ msg_Dbg( p_this, "thread (%s) created at priority %d (%s:%d)",
+ psz_name, i_priority, psz_file, i_line );
else
{
+ p_priv->b_thread = false;
errno = i_ret;
msg_Err( p_this, "%s thread could not be created at %s:%d (%m)",
psz_name, psz_file, i_line );
}
- vlc_object_unlock( p_this );
return i_ret;
}
+#undef vlc_thread_set_priority
/*****************************************************************************
* vlc_thread_set_priority: set the priority of the current thread when we
* couldn't set it in vlc_thread_create (for instance for the main thread)
*****************************************************************************/
-int __vlc_thread_set_priority( vlc_object_t *p_this, const char * psz_file,
- int i_line, int i_priority )
+int vlc_thread_set_priority( vlc_object_t *p_this, const char * psz_file,
+ int i_line, int i_priority )
{
vlc_object_internals_t *p_priv = vlc_internals( p_this );
#if defined( LIBVLC_USE_PTHREAD )
# ifndef __APPLE__
- if( config_GetInt( p_this, "rt-priority" ) > 0 )
+ if( var_InheritBool( p_this, "rt-priority" ) )
# endif
{
int i_error, i_policy;
memset( ¶m, 0, sizeof(struct sched_param) );
if( config_GetType( p_this, "rt-offset" ) )
- i_priority += config_GetInt( p_this, "rt-offset" );
+ i_priority += var_InheritInteger( p_this, "rt-offset" );
if( i_priority <= 0 )
{
param.sched_priority = (-1) * i_priority;
#elif defined( WIN32 ) || defined( UNDER_CE )
VLC_UNUSED( psz_file); VLC_UNUSED( i_line );
+#ifndef UNDER_CE
+ if( !SetThreadPriority(p_priv->thread_id, i_priority) )
+#else
if( !SetThreadPriority(p_priv->thread_id->handle, i_priority) )
+#endif
{
msg_Warn( p_this, "couldn't set a faster priority" );
return 1;
return 0;
}
+#undef vlc_thread_join
/*****************************************************************************
* vlc_thread_join: wait until a thread exits, inner version
*****************************************************************************/
-void __vlc_thread_join( vlc_object_t *p_this )
+void vlc_thread_join( vlc_object_t *p_this )
{
vlc_object_internals_t *p_priv = vlc_internals( p_this );
-#if defined( LIBVLC_USE_PTHREAD )
- vlc_join (p_priv->thread_id, NULL);
-
-#elif defined( UNDER_CE ) || defined( WIN32 )
+#if defined( WIN32 ) && !defined( UNDER_CE )
HANDLE hThread;
FILETIME create_ft, exit_ft, kernel_ft, user_ft;
int64_t real_time, kernel_time, user_time;
if( ! DuplicateHandle(GetCurrentProcess(),
- p_priv->thread_id->handle,
+ p_priv->thread_id,
GetCurrentProcess(),
&hThread,
0,
p_priv->b_thread = false;
return; /* We have a problem! */
}
+#endif
vlc_join( p_priv->thread_id, NULL );
+#if defined( WIN32 ) && !defined( UNDER_CE )
+ /* FIXME: this could work on WinCE too... except that it seems always to
+ * return 0 for exit_ft and kernel_ft */
if( GetThreadTimes( hThread, &create_ft, &exit_ft, &kernel_ft, &user_ft ) )
{
real_time =
(double)((user_time%(60*1000000))/1000000.0) );
}
CloseHandle( hThread );
-
-#else
- vlc_join( p_priv->thread_id, NULL );
-
#endif
p_priv->b_thread = false;
vlc_cancel (priv->thread_id);
}
-void vlc_control_cancel (int cmd, ...)
-{
- /* NOTE: This function only modifies thread-specific data, so there is no
- * need to lock anything. */
-#ifdef LIBVLC_USE_PTHREAD_CANCEL
- (void) cmd;
- assert (0);
-#else
- va_list ap;
-
- va_start (ap, cmd);
-
- vlc_cancel_t *nfo = vlc_threadvar_get (&cancel_key);
-#ifndef WIN32
- if (nfo == NULL)
- {
- nfo = malloc (sizeof (*nfo));
- if (nfo == NULL)
- abort ();
- *nfo = VLC_CANCEL_INIT;
- vlc_threadvar_set (&cancel_key, nfo);
- }
-#endif
-
- switch (cmd)
- {
- case VLC_SAVE_CANCEL:
- {
- int *p_state = va_arg (ap, int *);
- *p_state = nfo->killable;
- nfo->killable = false;
- break;
- }
-
- case VLC_RESTORE_CANCEL:
- {
- int state = va_arg (ap, int);
- nfo->killable = state != 0;
- break;
- }
-
- case VLC_TEST_CANCEL:
- if (nfo->killable && nfo->killed)
- {
- for (vlc_cleanup_t *p = nfo->cleaners; p != NULL; p = p->next)
- p->proc (p->data);
- free (nfo);
-#if defined (LIBVLC_USE_PTHREAD)
- pthread_exit (PTHREAD_CANCELLED);
-#elif defined (WIN32)
- _endthread ();
-#else
-# error Not implemented!
-#endif
- }
- break;
+/*** Global locks ***/
- case VLC_DO_CANCEL:
- nfo->killed = true;
- break;
-
- case VLC_CLEANUP_PUSH:
- {
- /* cleaner is a pointer to the caller stack, no need to allocate
- * and copy anything. As a nice side effect, this cannot fail. */
- vlc_cleanup_t *cleaner = va_arg (ap, vlc_cleanup_t *);
- cleaner->next = nfo->cleaners;
- nfo->cleaners = cleaner;
- break;
- }
+void vlc_global_mutex (unsigned n, bool acquire)
+{
+ static vlc_mutex_t locks[] = {
+ VLC_STATIC_MUTEX,
+ VLC_STATIC_MUTEX,
+ VLC_STATIC_MUTEX,
+ };
+ assert (n < (sizeof (locks) / sizeof (locks[0])));
+ vlc_mutex_t *lock = locks + n;
+
+ if (acquire)
+ vlc_mutex_lock (lock);
+ else
+ vlc_mutex_unlock (lock);
- case VLC_CLEANUP_POP:
- {
- nfo->cleaners = nfo->cleaners->next;
- break;
- }
- }
- va_end (ap);
-#endif
+ /* Compile-time assertion ;-) */
+ char enough_locks[(sizeof (locks) / sizeof (locks[0])) - VLC_MAX_MUTEX];
+ (void) enough_locks;
}
projects / vlc / blobdiff