/* This is the simulation implementation, using simix. */
-/* Copyright (c) 2007, 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2007-2014. 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. */
#include "xbt/ex.h"
+#include "xbt/synchro_core.h"
-#include "xbt/synchro.h" /* This module */
-
-#include "simix/simix.h" /* used implementation */
-#include "simix/datatypes.h"
+#include "simgrid/simix.h" /* used implementation */
#include "../simix/smx_private.h" /* FIXME */
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_sync, xbt,
void *userparam;
void *father_data;
/* stuff to allow other people to wait on me with xbt_thread_join */
- int joinable:1, done:1;
+ unsigned joinable:1, done:1;
xbt_cond_t cond;
xbt_mutex_t mutex;
} s_xbt_thread_t;
simcall_process_create(&res->s_process, name,
xbt_thread_create_wrapper, res,
SIMIX_host_self_get_name(), -1.0, 0, NULL,
- /*props */ NULL);
+ /*props */ NULL,0);
res->joinable = joinable;
res->done = 0;
res->cond = xbt_cond_init();
{
simcall_cond_destroy((smx_cond_t) cond);
}
+
+/***** barrier related functions *****/
+typedef struct s_xbt_bar_ {
+ xbt_mutex_t mutex;
+ xbt_cond_t cond;
+ unsigned int arrived_processes;
+ unsigned int expected_processes;
+} s_xbt_bar_;
+
+xbt_bar_t xbt_barrier_init(unsigned int count)
+{
+ xbt_bar_t bar = xbt_new0(s_xbt_bar_, 1);
+ bar->expected_processes = count;
+ bar->arrived_processes = 0;
+ bar->mutex = xbt_mutex_init();
+ bar->cond = xbt_cond_init();
+ return bar;
+}
+
+
+void xbt_barrier_wait(xbt_bar_t bar)
+{
+ xbt_mutex_acquire(bar->mutex);
+ if (++bar->arrived_processes == bar->expected_processes) {
+ xbt_cond_broadcast(bar->cond);
+ xbt_mutex_release(bar->mutex);
+ } else {
+ xbt_cond_wait(bar->cond, bar->mutex);
+ xbt_mutex_release(bar->mutex);
+ }
+}
+
+void xbt_barrier_destroy(xbt_bar_t bar)
+{
+ xbt_mutex_destroy(bar->mutex);
+ xbt_cond_destroy(bar->cond);
+ xbt_free(bar);
+}
+