-/* xbt/synchro.h -- Synchronization tools */
+/* xbt/synchro_core.h -- Synchronization tools */
/* Usable in simulator, (or in real life when mixing with GRAS) */
-/* Copyright (c) 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2009-2014. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-/* splited away from synchro.h since we areused by dynar.h, and synchro.h uses dynar */
+/* splited away from synchro.h since we are used by dynar.h, and synchro.h uses dynar */
#ifndef _XBT_THREAD_H
/** @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);
-/** @brief Blocks onto the given mutex variable, but only for the given amount of time. a timeout exception is raised if it was impossible to acquire it in the given time frame */
-XBT_PUBLIC(void) xbt_mutex_timedacquire(xbt_mutex_t mutex, double delay);
-
/** @brief Destroyes the given mutex variable */
XBT_PUBLIC(void) xbt_mutex_destroy(xbt_mutex_t mutex);
/** @brief Destroys the given mutex variable */
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(int) xbt_barrier_wait(xbt_bar_t bar);
+
/** @} */
SG_END_DECL()