-
-MSG_error_t
-MSG_task_send_with_timeout(m_task_t task, const char* alias, double timeout)
-{
- m_process_t process = MSG_process_self();
- const char* hostname;
- simdata_task_t task_simdata = NULL;
- m_host_t local_host = NULL;
- m_host_t remote_host = NULL;
- smx_cond_t cond = NULL;
-
- /* get the mailbox from the alias (if the mailbox doesn't exist, create it) */
- msg_mailbox_t mailbox = MSG_mailbox_get_by_alias(alias);
-
- CHECK_HOST();
-
- task_simdata = task->simdata;
- task_simdata->sender = process;
- task_simdata->source = MSG_process_get_host(process);
-
- xbt_assert0(task_simdata->using == 1,"This task is still being used somewhere else. You cannot send it now. Go fix your code!");
-
- task_simdata->comm = NULL;
-
- task_simdata->using++;
- local_host = ((simdata_process_t) process->simdata)->m_host;
-
- /* get the host name containing the mailbox */
- hostname = MSG_mailbox_get_hostname(mailbox);
-
- remote_host = MSG_get_host_by_name(hostname);
-
- if(NULL == remote_host)
- THROW1(not_found_error,0,"Host %s not fount", hostname);
-
-
- DEBUG4("Trying to send a task (%g kB) from %s to %s on the channel aliased by the alias %s",task->simdata->message_size / 1000, local_host->name,remote_host->name, MSG_mailbox_get_alias(mailbox));
-
- SIMIX_mutex_lock(remote_host->simdata->mutex);
-
- /* put the task in the mailbox */
- MSG_mailbox_put(mailbox,task);
-
- if(NULL != (cond = MSG_mailbox_get_cond(mailbox)))
- {
- DEBUG0("Somebody is listening. Let's wake him up!");
- SIMIX_cond_signal(cond);
- }
-
-
-
- SIMIX_mutex_unlock(remote_host->simdata->mutex);
-
- SIMIX_mutex_lock(task->simdata->mutex);
-
- process->simdata->waiting_task = task;
-
- if(timeout > 0)
- {
- xbt_ex_t e;
- double time;
- double time_elapsed;
- time = SIMIX_get_clock();
-
- TRY
- {
- /*verify if the action that ends is the correct. Call the wait_timeout with the new time. If the timeout occurs, an exception is raised */
- while (1)
- {
- time_elapsed = SIMIX_get_clock() - time;
- SIMIX_cond_wait_timeout(task->simdata->cond, task->simdata->mutex,timeout - time_elapsed);
-
- if ((task->simdata->comm != NULL) && (SIMIX_action_get_state(task->simdata->comm) != SURF_ACTION_RUNNING))
- break;
- }
- }
- CATCH(e)
- {
- if(e.category==timeout_error)
- {
- xbt_ex_free(e);
- /* verify if the timeout happened and the communication didn't started yet */
- if (task->simdata->comm == NULL)
- {
- process->simdata->waiting_task = NULL;
-
- /* remove the task from the mailbox */
- MSG_mailbox_remove(mailbox,task);
-
- if (task->simdata->receiver)
- {
- task->simdata->receiver->simdata->waiting_task = NULL;
- }
-
- task->simdata->sender = NULL;
-
- SIMIX_mutex_unlock(task->simdata->mutex);
- MSG_RETURN(MSG_TRANSFER_FAILURE);
- }
- }
- else
- {
- RETHROW;
- }
- }
- }
- else
- {
- while (1)
- {
- SIMIX_cond_wait(task->simdata->cond, task->simdata->mutex);
-
- if (SIMIX_action_get_state(task->simdata->comm) != SURF_ACTION_RUNNING)
- break;
- }
- }
-
- DEBUG1("Action terminated %s", task->name);
- process->simdata->waiting_task = NULL;
-
- /* the task has already finished and the pointer must be null */
- if (task->simdata->receiver)
- {
- task->simdata->receiver->simdata->waiting_task = NULL;
- }
-
- task->simdata->sender = NULL;
- SIMIX_mutex_unlock(task->simdata->mutex);
-
-
- if (SIMIX_action_get_state(task->simdata->comm) == SURF_ACTION_DONE)
- {
- MSG_RETURN(MSG_OK);
- }
- else if (SIMIX_host_get_state(local_host->simdata->smx_host) == 0)
- {
- MSG_RETURN(MSG_HOST_FAILURE);
- }
- else
- {
- MSG_RETURN(MSG_TRANSFER_FAILURE);
- }
-}
-
-MSG_error_t
-MSG_task_send(m_task_t task,const char* alias)
-{
- return MSG_task_send_with_timeout(task, alias, -1);
-}