X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/eb547ff91feeac5a0e9e258872cc648d6d947aa2..0ff2ce0eb47f6598efe54b6b614d0291594fbf6f:/include/xbt/synchro_core.h

diff --git a/include/xbt/synchro_core.h b/include/xbt/synchro_core.h
index 5313a9c448..a260c0d97b 100644
--- a/include/xbt/synchro_core.h
+++ b/include/xbt/synchro_core.h
@@ -79,6 +79,14 @@ XBT_PUBLIC(xbt_mutex_t) xbt_mutex_init(void);
 /** @brief Blocks onto the given mutex variable */
 XBT_PUBLIC(void) xbt_mutex_acquire(xbt_mutex_t mutex);
 
+/** @brief Tries to block onto the given mutex variable 
+ * Tries to lock a mutex, return 1 if the mutex is unlocked, else 0.
+ * This function does not block and wait for the mutex to be unlocked.
+ * \param mutex The mutex
+ * \return 1 - mutex free, 0 - mutex used
+ */
+XBT_PUBLIC(int) xbt_mutex_try_acquire(xbt_mutex_t mutex);
+
 /** @brief Releases the given mutex variable */
 XBT_PUBLIC(void) xbt_mutex_release(xbt_mutex_t mutex);
 
@@ -107,10 +115,11 @@ XBT_PUBLIC(void) xbt_cond_broadcast(xbt_cond_t cond);
 XBT_PUBLIC(void) xbt_cond_destroy(xbt_cond_t cond);
 
 
+#define XBT_BARRIER_SERIAL_PROCESS -1
 typedef struct s_xbt_bar_ *xbt_bar_t;
 XBT_PUBLIC(xbt_bar_t) xbt_barrier_init( unsigned int count);
 XBT_PUBLIC(void) xbt_barrier_destroy(xbt_bar_t bar);
-XBT_PUBLIC(void) xbt_barrier_wait(xbt_bar_t bar);
+XBT_PUBLIC(int) xbt_barrier_wait(xbt_bar_t bar);
 
 /** @} */