/* somebody using the mutex, block */
xbt_swag_insert(self, mutex->sleeping);
self->simdata->mutex = mutex;
- __SIMIX_process_block(-1,"");
+ __SIMIX_process_block(-1);
self->simdata->mutex = NULL;
mutex->using = 1;
}
/******************************** Conditional *********************************/
smx_cond_t SIMIX_cond_init()
{
- return xbt_new0(s_smx_cond_t,1);
+ smx_cond_t cond = xbt_new0(s_smx_cond_t,1);
+ s_smx_process_t p;
+
+ cond->sleeping = xbt_swag_new(xbt_swag_offset(p,synchro_hookup));
+ cond->actions = xbt_fifo_new();
+ cond->mutex = NULL;
+ return cond;
}
void SIMIX_cond_signal(smx_cond_t cond)
{
+ xbt_assert0((cond != NULL), "Invalid parameters");
+ smx_process_t proc = NULL;
+
+ if (xbt_swag_size(cond->sleeping) >= 1) {
+ proc = xbt_swag_extract(cond->sleeping);
+ __SIMIX_process_unblock(proc);
+ }
+
return;
}
void SIMIX_cond_wait(smx_cond_t cond,smx_mutex_t mutex)
{
+ /* call the function with timeout, with max_duration > 0
+ * the process is blocked forever */
+ SIMIX_cond_wait_timeout(cond, mutex, -1);
return;
}
void SIMIX_cond_wait_timeout(smx_cond_t cond,smx_mutex_t mutex, double max_duration)
{
+ smx_process_t self = SIMIX_process_self();
+
+ xbt_assert0((mutex != NULL), "Invalid parameters");
+
+ /* process status */
+ self->simdata->cond = cond;
+
+ xbt_swag_insert(self, cond->sleeping);
+ cond->mutex = mutex;
+
+ SIMIX_mutex_unlock(mutex);
+ /* if the max_duration < 0, blocks forever */
+ if (max_duration >=0) {
+ __SIMIX_process_block(max_duration);
+ self->simdata->cond = NULL;
+ }
+ else {
+ __SIMIX_process_block(-1);
+ self->simdata->cond = NULL;
+ }
+ /* get the mutex again */
+ SIMIX_mutex_lock(cond->mutex);
return;
}
+
void SIMIX_cond_broadcast(smx_cond_t cond)
{
+ xbt_assert0((cond != NULL), "Invalid parameters");
+ smx_process_t proc = NULL;
+ smx_process_t proc_next = NULL;
+
+ xbt_swag_foreach_safe(proc,proc_next,cond->sleeping) {
+ __SIMIX_process_unblock(proc);
+ xbt_swag_remove(proc,cond->sleeping);
+ }
+
return;
}
-void SIMIX_cond_destroy(smx_cond_t cond)
+SIMIX_error_t SIMIX_cond_destroy(smx_cond_t cond)
{
- return;
+
+ if ( cond == NULL )
+ return SIMIX_WARNING;
+ else {
+ xbt_assert0( (xbt_swag_size(cond->sleeping) > 0) &&
+ (xbt_fifo_size(cond->actions) > 0), "Cannot destroy conditional");
+
+ xbt_swag_free(cond->sleeping);
+ xbt_fifo_free(cond->actions);
+ xbt_free(cond);
+ return SIMIX_OK;
+ }
}
+
+void SIMIX_register_condition_to_action(smx_action_t action, smx_cond_t cond)
+{
+ xbt_assert0( (action != NULL) && (cond != NULL), "Invalid parameters");
+
+ xbt_fifo_push(action->simdata->cond_list,cond);
+}
+
+