/**************************************************************************
*
* Copyright 1999-2006 Brian Paul
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2008 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
**************************************************************************/
#include "pipe/p_compiler.h"
#include "util/u_debug.h" /* for assert */
+#include "c11/threads.h"
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_EMBEDDED)
-
-#include <pthread.h> /* POSIX threads headers */
-#include <stdio.h> /* for perror() */
+#ifdef HAVE_PTHREAD
+#include <signal.h>
+#endif
-#define PIPE_THREAD_HAVE_CONDVAR
/* pipe_thread
*/
-typedef pthread_t pipe_thread;
+typedef thrd_t pipe_thread;
#define PIPE_THREAD_ROUTINE( name, param ) \
- void *name( void *param )
+ int name( void *param )
-static INLINE pipe_thread pipe_thread_create( void *(* routine)( void *), void *param )
+static INLINE pipe_thread pipe_thread_create( PIPE_THREAD_ROUTINE((*routine), ), void *param )
{
pipe_thread thread;
- if (pthread_create( &thread, NULL, routine, param ))
+#ifdef HAVE_PTHREAD
+ sigset_t saved_set, new_set;
+ int ret;
+
+ sigfillset(&new_set);
+ pthread_sigmask(SIG_SETMASK, &new_set, &saved_set);
+ ret = thrd_create( &thread, routine, param );
+ pthread_sigmask(SIG_SETMASK, &saved_set, NULL);
+#else
+ int ret;
+ ret = thrd_create( &thread, routine, param );
+#endif
+ if (ret)
return 0;
+
return thread;
}
static INLINE int pipe_thread_wait( pipe_thread thread )
{
- return pthread_join( thread, NULL );
+ return thrd_join( thread, NULL );
}
static INLINE int pipe_thread_destroy( pipe_thread thread )
{
- return pthread_detach( thread );
+ return thrd_detach( thread );
}
-
-/* pipe_mutex
- */
-typedef pthread_mutex_t pipe_mutex;
-
-#define pipe_static_mutex(mutex) \
- static pipe_mutex mutex = PTHREAD_MUTEX_INITIALIZER
-
-#define pipe_mutex_init(mutex) \
- (void) pthread_mutex_init(&(mutex), NULL)
-
-#define pipe_mutex_destroy(mutex) \
- pthread_mutex_destroy(&(mutex))
-
-#define pipe_mutex_lock(mutex) \
- (void) pthread_mutex_lock(&(mutex))
-
-#define pipe_mutex_unlock(mutex) \
- (void) pthread_mutex_unlock(&(mutex))
-
-
-/* pipe_condvar
- */
-typedef pthread_cond_t pipe_condvar;
-
-#define pipe_static_condvar(mutex) \
- static pipe_condvar mutex = PTHREAD_COND_INITIALIZER
-
-#define pipe_condvar_init(cond) \
- pthread_cond_init(&(cond), NULL)
-
-#define pipe_condvar_destroy(cond) \
- pthread_cond_destroy(&(cond))
-
-#define pipe_condvar_wait(cond, mutex) \
- pthread_cond_wait(&(cond), &(mutex))
-
-#define pipe_condvar_signal(cond) \
- pthread_cond_signal(&(cond))
-
-#define pipe_condvar_broadcast(cond) \
- pthread_cond_broadcast(&(cond))
-
-
-
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
-
-#include <windows.h>
-
-/* pipe_thread
- */
-typedef HANDLE pipe_thread;
-
-#define PIPE_THREAD_ROUTINE( name, param ) \
- void * WINAPI name( void *param )
-
-static INLINE pipe_thread pipe_thread_create( void *(WINAPI * routine)( void *), void *param )
+static INLINE void pipe_thread_setname( const char *name )
{
- DWORD id;
- return CreateThread( NULL, 0, (LPTHREAD_START_ROUTINE) routine, param, 0, &id );
-}
-
-static INLINE int pipe_thread_wait( pipe_thread thread )
-{
- if (WaitForSingleObject( thread, INFINITE ) == WAIT_OBJECT_0)
- return 0;
- return -1;
-}
-
-static INLINE int pipe_thread_destroy( pipe_thread thread )
-{
- if (CloseHandle( thread ))
- return 0;
- return -1;
+#if defined(HAVE_PTHREAD)
+# if defined(__GNU_LIBRARY__) && defined(__GLIBC__) && defined(__GLIBC_MINOR__) && \
+ (__GLIBC__ >= 3 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 12))
+ pthread_setname_np(pthread_self(), name);
+# endif
+#endif
+ (void)name;
}
/* pipe_mutex
*/
-typedef CRITICAL_SECTION pipe_mutex;
+typedef mtx_t pipe_mutex;
#define pipe_static_mutex(mutex) \
- /*static*/ pipe_mutex mutex = {0,0,0,0,0,0}
+ static pipe_mutex mutex = _MTX_INITIALIZER_NP
#define pipe_mutex_init(mutex) \
- InitializeCriticalSection(&mutex)
+ (void) mtx_init(&(mutex), mtx_plain)
#define pipe_mutex_destroy(mutex) \
- DeleteCriticalSection(&mutex)
+ mtx_destroy(&(mutex))
#define pipe_mutex_lock(mutex) \
- EnterCriticalSection(&mutex)
+ (void) mtx_lock(&(mutex))
#define pipe_mutex_unlock(mutex) \
- LeaveCriticalSection(&mutex)
+ (void) mtx_unlock(&(mutex))
-/* pipe_condvar (XXX FIX THIS)
+/* pipe_condvar
*/
-typedef unsigned pipe_condvar;
+typedef cnd_t pipe_condvar;
-#define pipe_condvar_init(cond) \
- (void) cond
+#define pipe_condvar_init(cond) \
+ cnd_init(&(cond))
#define pipe_condvar_destroy(cond) \
- (void) cond
+ cnd_destroy(&(cond))
#define pipe_condvar_wait(cond, mutex) \
- (void) cond; (void) mutex
+ cnd_wait(&(cond), &(mutex))
#define pipe_condvar_signal(cond) \
- (void) cond
+ cnd_signal(&(cond))
#define pipe_condvar_broadcast(cond) \
- (void) cond
-
-
-#else
-
-/** Dummy definitions */
-
-typedef unsigned pipe_thread;
-
-#define PIPE_THREAD_ROUTINE( name, param ) \
- void * name( void *param )
-
-static INLINE pipe_thread pipe_thread_create( void *(* routine)( void *), void *param )
-{
- return 0;
-}
-
-static INLINE int pipe_thread_wait( pipe_thread thread )
-{
- return -1;
-}
-
-static INLINE int pipe_thread_destroy( pipe_thread thread )
-{
- return -1;
-}
-
-typedef unsigned pipe_mutex;
-typedef unsigned pipe_condvar;
-
-#define pipe_static_mutex(mutex) \
- static pipe_mutex mutex = 0
-
-#define pipe_mutex_init(mutex) \
- (void) mutex
-
-#define pipe_mutex_destroy(mutex) \
- (void) mutex
-
-#define pipe_mutex_lock(mutex) \
- (void) mutex
-
-#define pipe_mutex_unlock(mutex) \
- (void) mutex
-
-#define pipe_static_condvar(condvar) \
- static unsigned condvar = 0
-
-#define pipe_condvar_init(condvar) \
- (void) condvar
-
-#define pipe_condvar_destroy(condvar) \
- (void) condvar
-
-#define pipe_condvar_wait(condvar, mutex) \
- (void) condvar
-
-#define pipe_condvar_signal(condvar) \
- (void) condvar
-
-#define pipe_condvar_broadcast(condvar) \
- (void) condvar
-
-
-#endif /* PIPE_OS_? */
+ cnd_broadcast(&(cond))
/*
* pipe_barrier
*/
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_EMBEDDED)
+#if (defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HURD)) && !defined(PIPE_OS_ANDROID)
typedef pthread_barrier_t pipe_barrier;
}
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
-
-/* XXX FIX THIS */
-typedef unsigned pipe_barrier;
-
-static INLINE void pipe_barrier_init(pipe_barrier *barrier, unsigned count)
-{
- /* XXX we could implement barriers with a mutex and condition var */
-}
-
-static INLINE void pipe_barrier_destroy(pipe_barrier *barrier)
-{
-}
-
-static INLINE void pipe_barrier_wait(pipe_barrier *barrier)
-{
- assert(0);
-}
-
-
-#else
+#else /* If the OS doesn't have its own, implement barriers using a mutex and a condvar */
typedef struct {
unsigned count;
unsigned waiters;
+ uint64_t sequence;
pipe_mutex mutex;
pipe_condvar condvar;
} pipe_barrier;
{
barrier->count = count;
barrier->waiters = 0;
+ barrier->sequence = 0;
pipe_mutex_init(barrier->mutex);
pipe_condvar_init(barrier->condvar);
}
barrier->waiters++;
if (barrier->waiters < barrier->count) {
- pipe_condvar_wait(barrier->condvar, barrier->mutex);
+ uint64_t sequence = barrier->sequence;
+
+ do {
+ pipe_condvar_wait(barrier->condvar, barrier->mutex);
+ } while (sequence == barrier->sequence);
} else {
barrier->waiters = 0;
+ barrier->sequence++;
pipe_condvar_broadcast(barrier->condvar);
}
*/
typedef struct {
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_EMBEDDED)
- pthread_key_t key;
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
- DWORD key;
-#endif
+ tss_t key;
int initMagic;
} pipe_tsd;
static INLINE void
pipe_tsd_init(pipe_tsd *tsd)
{
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_EMBEDDED)
- if (pthread_key_create(&tsd->key, NULL/*free*/) != 0) {
- perror("pthread_key_create(): failed to allocate key for thread specific data");
+ if (tss_create(&tsd->key, NULL/*free*/) != 0) {
exit(-1);
}
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
- assert(0);
-#endif
tsd->initMagic = PIPE_TSD_INIT_MAGIC;
}
if (tsd->initMagic != (int) PIPE_TSD_INIT_MAGIC) {
pipe_tsd_init(tsd);
}
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_EMBEDDED)
- return pthread_getspecific(tsd->key);
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
- assert(0);
- return NULL;
-#else
- assert(0);
- return NULL;
-#endif
+ return tss_get(tsd->key);
}
static INLINE void
if (tsd->initMagic != (int) PIPE_TSD_INIT_MAGIC) {
pipe_tsd_init(tsd);
}
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_EMBEDDED)
- if (pthread_setspecific(tsd->key, value) != 0) {
- perror("pthread_set_specific() failed");
+ if (tss_set(tsd->key, value) != 0) {
exit(-1);
}
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
- assert(0);
-#else
- assert(0);
-#endif
}