-
- while (1) {
- /* if the mailbox is empty (has no task */
- if (!MSG_mailbox_is_empty(mailbox)) {
- if (!host) {
- /* pop the head of the mailbox */
- t = MSG_mailbox_pop_head(mailbox);
- break;
- } else {
- /* get the first task of the host */
- if (NULL != (t = MSG_mailbox_get_first_host_task(mailbox, host)))
- break;
- }
- }
-
- if (timeout > 0) {
- if (!first_time) {
- SIMIX_mutex_unlock(h->simdata->mutex);
- /* set the simix condition of the mailbox to NULL */
- MSG_mailbox_set_cond(mailbox, NULL);
- SIMIX_cond_destroy(cond);
- MSG_RETURN(MSG_TRANSFER_FAILURE);
- }
- }
-
- 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)