-
- DEBUG1("OK, got a task (%s)", t->name);
- /* clean conditional */
- if (cond)
- {
- SIMIX_cond_destroy(cond);
-
- MSG_mailbox_set_cond(mailbox,NULL);
- }
-
- t_simdata = t->simdata;
- t_simdata->receiver = process;
- *task = t;
-
- SIMIX_mutex_lock(t_simdata->mutex);
-
- /* Transfer */
- /* create SIMIX action to the communication */
- t_simdata->comm = SIMIX_action_communicate(
- t_simdata->sender->simdata->m_host->simdata->smx_host,
- process->simdata->m_host->simdata->smx_host,
- t->name,
- t_simdata->message_size,
- t_simdata->rate
- );
-
- /* if the process is suspend, create the action but stop its execution, it will be restart when the sender process resume */
- if (MSG_process_is_suspended(t_simdata->sender))
- {
- DEBUG1("Process sender (%s) suspended", t_simdata->sender->name);
- SIMIX_action_set_priority(t_simdata->comm, 0);
- }
-
- process->simdata->waiting_task = t;
- SIMIX_register_action_to_condition(t_simdata->comm, t_simdata->cond);
-
- while (1)
- {
- SIMIX_cond_wait(t_simdata->cond, t_simdata->mutex);
-
- if (SIMIX_action_get_state(t_simdata->comm) != SURF_ACTION_RUNNING)
- break;
- }
-
- SIMIX_unregister_action_to_condition(t_simdata->comm, t_simdata->cond);
- process->simdata->waiting_task = NULL;
-
- /* the task has already finished and the pointer must be null */
- if (t->simdata->sender)
- {
- t->simdata->sender->simdata->waiting_task = NULL;
- }
-
- /* for this process, don't need to change in get function */
- t->simdata->receiver = NULL;
- SIMIX_mutex_unlock(t_simdata->mutex);
-
-
- if (SIMIX_action_get_state(t_simdata->comm) == SURF_ACTION_DONE)
- {
- SIMIX_action_destroy(t_simdata->comm);
- t_simdata->comm = NULL;
- t_simdata->using--;
- MSG_RETURN(MSG_OK);
- }
- else if (SIMIX_host_get_state(h_simdata->smx_host) == 0)
- {
- SIMIX_action_destroy(t_simdata->comm);
- t_simdata->comm = NULL;
- t_simdata->using--;
- MSG_RETURN(MSG_HOST_FAILURE);
- }
- else
- {
- SIMIX_action_destroy(t_simdata->comm);
- t_simdata->comm = NULL;
- t_simdata->using--;
- MSG_RETURN(MSG_TRANSFER_FAILURE);
- }
+ /* set the simix condition of the mailbox to NULL */
+ MSG_mailbox_set_cond(mailbox, NULL);
+ SIMIX_cond_destroy(cond);
+ MSG_RETURN(MSG_TRANSFER_FAILURE);
+ }
+ }
+
+ xbt_assert1(!MSG_mailbox_get_cond(mailbox),
+ "A process is already blocked on the channel %s",
+ MSG_mailbox_get_alias(mailbox));
+
+ cond = SIMIX_cond_init();
+
+ /* set the condition of the mailbox */
+ MSG_mailbox_set_cond(mailbox, cond);
+
+ if (timeout > 0)
+ SIMIX_cond_wait_timeout(cond, h->simdata->mutex, timeout);
+ else
+ SIMIX_cond_wait(MSG_mailbox_get_cond(mailbox), h->simdata->mutex);
+
+
+ if (SIMIX_host_get_state(h_simdata->smx_host) == 0)
+ MSG_RETURN(MSG_HOST_FAILURE);
+
+ first_time = 0;
+ }
+
+ SIMIX_mutex_unlock(h->simdata->mutex);
+
+ DEBUG1("OK, got a task (%s)", t->name);
+ /* clean conditional */
+ if (cond) {
+ SIMIX_cond_destroy(cond);
+
+ MSG_mailbox_set_cond(mailbox, NULL);
+ }
+
+ t_simdata = t->simdata;
+ t_simdata->receiver = process;
+ *task = t;
+
+ SIMIX_mutex_lock(t_simdata->mutex);
+
+ /* Transfer */
+ /* create SIMIX action to the communication */
+ t_simdata->comm =
+ SIMIX_action_communicate(t_simdata->sender->simdata->m_host->
+ simdata->smx_host,
+ process->simdata->m_host->simdata->smx_host,
+ t->name, t_simdata->message_size,
+ t_simdata->rate);
+
+ /* if the process is suspend, create the action but stop its execution, it will be restart when the sender process resume */
+ if (MSG_process_is_suspended(t_simdata->sender)) {
+ DEBUG1("Process sender (%s) suspended", t_simdata->sender->name);
+ SIMIX_action_set_priority(t_simdata->comm, 0);
+ }
+
+ process->simdata->waiting_task = t;
+ SIMIX_register_action_to_condition(t_simdata->comm, t_simdata->cond);
+
+ while (1) {
+ SIMIX_cond_wait(t_simdata->cond, t_simdata->mutex);
+
+ if (SIMIX_action_get_state(t_simdata->comm) != SURF_ACTION_RUNNING)
+ break;
+ }
+
+ SIMIX_unregister_action_to_condition(t_simdata->comm, t_simdata->cond);
+ process->simdata->waiting_task = NULL;
+
+ /* the task has already finished and the pointer must be null */
+ if (t->simdata->sender) {
+ t->simdata->sender->simdata->waiting_task = NULL;
+ }
+
+ /* for this process, don't need to change in get function */
+ t->simdata->receiver = NULL;
+ SIMIX_mutex_unlock(t_simdata->mutex);
+
+
+ if (SIMIX_action_get_state(t_simdata->comm) == SURF_ACTION_DONE) {
+ SIMIX_action_destroy(t_simdata->comm);
+ t_simdata->comm = NULL;
+ t_simdata->using--;
+ MSG_RETURN(MSG_OK);
+ } else if (SIMIX_host_get_state(h_simdata->smx_host) == 0) {
+ SIMIX_action_destroy(t_simdata->comm);
+ t_simdata->comm = NULL;
+ t_simdata->using--;
+ MSG_RETURN(MSG_HOST_FAILURE);
+ } else {
+ SIMIX_action_destroy(t_simdata->comm);
+ t_simdata->comm = NULL;
+ t_simdata->using--;
+ MSG_RETURN(MSG_TRANSFER_FAILURE);
+ }