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authorBrian Paul <[email protected]>2009-12-11 14:00:25 -0700
committerBrian Paul <[email protected]>2009-12-11 14:00:25 -0700
commit0fc90dfa280e12a100c6c7c632d5d29c16118c9a (patch)
tree221c0832e6389cbc18ef9e6b23ac26bfb5071833 /src/gallium/include/pipe
parentde31b0e60c4b68b73b8983a0ae3e8f3f61d9d583 (diff)
gallium: added pipe_barrier type and functions
Diffstat (limited to 'src/gallium/include/pipe')
-rw-r--r--src/gallium/include/pipe/p_thread.h61
1 files changed, 60 insertions, 1 deletions
diff --git a/src/gallium/include/pipe/p_thread.h b/src/gallium/include/pipe/p_thread.h
index 45c35a87d0e..ba5cd589f84 100644
--- a/src/gallium/include/pipe/p_thread.h
+++ b/src/gallium/include/pipe/p_thread.h
@@ -27,7 +27,8 @@
/**
* @file
*
- * Thread, mutex, condition var and thread-specific data functions.
+ * Thread, mutex, condition variable, barrier, semaphore and
+ * thread-specific data functions.
*/
@@ -106,6 +107,24 @@ typedef pthread_cond_t pipe_condvar;
pthread_cond_broadcast(&(cond))
+typedef pthread_barrier_t pipe_barrier;
+
+static INLINE void pipe_barrier_init(pipe_barrier *barrier, unsigned count)
+{
+ pthread_barrier_init(barrier, NULL, count);
+}
+
+static INLINE void pipe_barrier_destroy(pipe_barrier *barrier)
+{
+ pthread_barrier_destroy(barrier);
+}
+
+static INLINE void pipe_barrier_wait(pipe_barrier *barrier)
+{
+ pthread_barrier_wait(barrier);
+}
+
+
#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
#include <windows.h>
@@ -162,6 +181,27 @@ typedef unsigned pipe_condvar;
#define pipe_condvar_broadcast(condvar) \
(void) condvar
+
+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 */
+ assert(0);
+}
+
+static INLINE void pipe_barrier_destroy(pipe_barrier *barrier)
+{
+ assert(0);
+}
+
+static INLINE void pipe_barrier_wait(pipe_barrier *barrier)
+{
+ assert(0);
+}
+
+
+
#else
/** Dummy definitions */
@@ -169,6 +209,7 @@ typedef unsigned pipe_condvar;
typedef unsigned pipe_thread;
typedef unsigned pipe_mutex;
typedef unsigned pipe_condvar;
+typedef unsigned pipe_barrier;
#define pipe_static_mutex(mutex) \
static pipe_mutex mutex = 0
@@ -204,6 +245,24 @@ typedef unsigned pipe_condvar;
(void) condvar
+static INLINE void pipe_barrier_init(pipe_barrier *barrier, unsigned count)
+{
+ /* XXX we could implement barriers with a mutex and condition var */
+ assert(0);
+}
+
+static INLINE void pipe_barrier_destroy(pipe_barrier *barrier)
+{
+ assert(0);
+}
+
+static INLINE void pipe_barrier_wait(pipe_barrier *barrier)
+{
+ assert(0);
+}
+
+
+
#endif /* PIPE_OS_? */