-#include "msg_mailbox.h"\r
-#include "msg/private.h"\r
-\r
-static xbt_dict_t \r
-msg_mailboxes = NULL;\r
-\r
-xbt_dict_t\r
-MSG_get_mailboxes(void)\r
-{\r
- return msg_mailboxes;\r
-}\r
-\r
-void\r
-MSG_mailbox_mod_init(void)\r
-{\r
- msg_mailboxes = xbt_dict_new(); \r
-}\r
-\r
-void\r
-MSG_mailbox_mod_exit(void)\r
-{\r
- xbt_dict_free(&msg_mailboxes);\r
-}\r
-\r
-msg_mailbox_t\r
-MSG_mailbox_new(const char *alias)\r
-{\r
- msg_mailbox_t mailbox = xbt_new0(s_msg_mailbox_t,1);\r
- \r
- mailbox->tasks = xbt_fifo_new();\r
- mailbox->cond = NULL;\r
- mailbox->alias = xbt_strdup(alias);\r
- mailbox->hostname = NULL;\r
- \r
- /* add the mbox in the dictionary */\r
- xbt_dict_set(msg_mailboxes, alias, mailbox, MSG_mailbox_free);\r
- \r
- return mailbox;\r
-}\r
-\r
-void\r
-MSG_mailbox_destroy(msg_mailbox_t* mailbox)\r
-{\r
- xbt_dict_remove(msg_mailboxes,(*mailbox)->alias);\r
-\r
- if(NULL != ((*mailbox)->hostname))\r
- free((*mailbox)->hostname);\r
-\r
- \r
- free((*mailbox)->alias);\r
- \r
- free(*mailbox);\r
- \r
- *mailbox = NULL; \r
-}\r
-\r
-void\r
-MSG_mailbox_put(msg_mailbox_t mailbox, m_task_t task)\r
-{\r
- xbt_fifo_push(mailbox->tasks, task);\r
-}\r
-\r
-smx_cond_t\r
-MSG_mailbox_get_cond(msg_mailbox_t mailbox)\r
-{\r
- return mailbox->cond;\r
-}\r
-\r
-void\r
-MSG_mailbox_remove(msg_mailbox_t mailbox, m_task_t task)\r
-{\r
- xbt_fifo_remove(mailbox->tasks,task);\r
-}\r
-\r
-int\r
-MSG_mailbox_is_empty(msg_mailbox_t mailbox)\r
-{\r
- return (NULL == xbt_fifo_get_first_item(mailbox->tasks));\r
-}\r
-\r
-m_task_t\r
-MSG_mailbox_pop_head(msg_mailbox_t mailbox)\r
-{\r
- return (m_task_t)xbt_fifo_shift(mailbox->tasks);\r
-}\r
-\r
-m_task_t\r
-MSG_mailbox_get_head(msg_mailbox_t mailbox)\r
-{\r
- xbt_fifo_item_t item;\r
- \r
- if(NULL == (item = xbt_fifo_get_first_item(mailbox->tasks)))\r
- return NULL;\r
- \r
- return (m_task_t)xbt_fifo_get_item_content(item);\r
-}\r
-\r
-m_task_t\r
-MSG_mailbox_get_first_host_task(msg_mailbox_t mailbox, m_host_t host)\r
-{\r
- m_task_t task = NULL;\r
- xbt_fifo_item_t item = NULL;\r
- \r
- xbt_fifo_foreach(mailbox->tasks, item, task, m_task_t) \r
- {\r
- if (task->simdata->source == host)\r
- break;\r
- }\r
- \r
- if(item) \r
- xbt_fifo_remove_item(mailbox->tasks, item);\r
- \r
- return task;\r
-}\r
-\r
-int\r
-MSG_mailbox_get_count_host_tasks(msg_mailbox_t mailbox, m_host_t host)\r
-{\r
- m_task_t task = NULL;\r
- xbt_fifo_item_t item = NULL;\r
- int count = 0;\r
- \r
- xbt_fifo_foreach(mailbox->tasks, item, task, m_task_t) \r
- {\r
- if (task->simdata->source == host)\r
- count++;\r
- }\r
- \r
- return count;\r
-}\r
-\r
-void\r
-MSG_mailbox_set_cond(msg_mailbox_t mailbox, smx_cond_t cond)\r
-{\r
- mailbox->cond = cond;\r
-}\r
-\r
-const char*\r
-MSG_mailbox_get_alias(msg_mailbox_t mailbox)\r
-{\r
- return mailbox->alias;\r
-}\r
-\r
-const char*\r
-MSG_mailbox_get_hostname(msg_mailbox_t mailbox)\r
-{\r
- return mailbox->hostname;\r
-}\r
-\r
-void\r
-MSG_mailbox_set_hostname(msg_mailbox_t mailbox, const char* hostname)\r
-{\r
- mailbox->hostname = xbt_strdup(hostname);\r
-}\r
-\r
-void\r
-MSG_mailbox_free(void* mailbox)\r
-{\r
- msg_mailbox_t __mailbox = (msg_mailbox_t)mailbox;\r
-\r
- if(NULL != (__mailbox->hostname))\r
- free(__mailbox->hostname);\r
-\r
- free(__mailbox->alias);\r
- \r
- free(__mailbox);\r
-}\r
-\r
-msg_mailbox_t\r
-MSG_mailbox_get_by_alias(const char* alias)\r
-{\r
- xbt_ex_t e;\r
- int found = 1;\r
- msg_mailbox_t mailbox;\r
-\r
- TRY \r
- {\r
- mailbox = xbt_dict_get(msg_mailboxes,alias);\r
- } \r
- CATCH(e) \r
- {\r
- if (e.category == not_found_error) \r
- {\r
- found = 0;\r
- xbt_ex_free(e);\r
- } \r
- else \r
- {\r
- RETHROW;\r
- }\r
- }\r
-\r
- if(!found)\r
- {\r
- mailbox = MSG_mailbox_new(alias);\r
- MSG_mailbox_set_hostname(mailbox,MSG_host_self()->name);\r
- }\r
- \r
- return mailbox; \r
-}
\ No newline at end of file
+#include "mailbox.h"
+#include "msg/private.h"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_mailbox, msg,
+ "Logging specific to MSG (mailbox)");
+
+static xbt_dict_t
+msg_mailboxes = NULL;
+
+void
+MSG_mailbox_mod_init(void)
+{
+ msg_mailboxes = xbt_dict_new();
+}
+
+void
+MSG_mailbox_mod_exit(void)
+{
+ xbt_dict_free(&msg_mailboxes);
+}
+
+msg_mailbox_t
+MSG_mailbox_create(const char *alias)
+{
+ msg_mailbox_t mailbox = xbt_new0(s_msg_mailbox_t,1);
+
+ mailbox->tasks = xbt_fifo_new();
+ mailbox->cond = NULL;
+ mailbox->alias = alias ? xbt_strdup(alias) : NULL;
+ mailbox->hostname = NULL;
+
+ return mailbox;
+}
+
+msg_mailbox_t
+MSG_mailbox_new(const char *alias)
+{
+ msg_mailbox_t mailbox = MSG_mailbox_create(alias);
+
+ /* add the mbox in the dictionary */
+ xbt_dict_set(msg_mailboxes, alias, mailbox, MSG_mailbox_free);
+
+ return mailbox;
+}
+
+void
+MSG_mailbox_free(void* mailbox)
+{
+ msg_mailbox_t _mailbox = (msg_mailbox_t)mailbox;
+
+ if(NULL != (_mailbox->hostname))
+ free(_mailbox->hostname);
+
+ xbt_fifo_free(_mailbox->tasks);
+ free(_mailbox->alias);
+
+ free(_mailbox);
+}
+
+void
+MSG_mailbox_put(msg_mailbox_t mailbox, m_task_t task)
+{
+ xbt_fifo_push(mailbox->tasks, task);
+}
+
+smx_cond_t
+MSG_mailbox_get_cond(msg_mailbox_t mailbox)
+{
+ return mailbox->cond;
+}
+
+void
+MSG_mailbox_remove(msg_mailbox_t mailbox, m_task_t task)
+{
+ xbt_fifo_remove(mailbox->tasks,task);
+}
+
+int
+MSG_mailbox_is_empty(msg_mailbox_t mailbox)
+{
+ return (NULL == xbt_fifo_get_first_item(mailbox->tasks));
+}
+
+m_task_t
+MSG_mailbox_pop_head(msg_mailbox_t mailbox)
+{
+ return (m_task_t)xbt_fifo_shift(mailbox->tasks);
+}
+
+m_task_t
+MSG_mailbox_get_head(msg_mailbox_t mailbox)
+{
+ xbt_fifo_item_t item;
+
+ if(NULL == (item = xbt_fifo_get_first_item(mailbox->tasks)))
+ return NULL;
+
+ return (m_task_t)xbt_fifo_get_item_content(item);
+}
+
+
+m_task_t
+MSG_mailbox_get_first_host_task(msg_mailbox_t mailbox, m_host_t host)
+{
+ m_task_t task = NULL;
+ xbt_fifo_item_t item = NULL;
+
+ xbt_fifo_foreach(mailbox->tasks, item, task, m_task_t)
+ if (task->simdata->source == host) {
+ xbt_fifo_remove_item(mailbox->tasks, item);
+ return task;
+ }
+
+ return NULL;
+}
+
+int
+MSG_mailbox_get_count_host_waiting_tasks(msg_mailbox_t mailbox, m_host_t host)
+{
+ m_task_t task = NULL;
+ xbt_fifo_item_t item = NULL;
+ int count = 0;
+
+ xbt_fifo_foreach(mailbox->tasks, item, task, m_task_t)
+ {
+ if (task->simdata->source == host)
+ count++;
+ }
+
+ return count;
+}
+
+void
+MSG_mailbox_set_cond(msg_mailbox_t mailbox, smx_cond_t cond)
+{
+ mailbox->cond = cond;
+}
+
+const char*
+MSG_mailbox_get_alias(msg_mailbox_t mailbox)
+{
+ return mailbox->alias;
+}
+
+const char*
+MSG_mailbox_get_hostname(msg_mailbox_t mailbox)
+{
+ return mailbox->hostname;
+}
+
+void
+MSG_mailbox_set_hostname(msg_mailbox_t mailbox, const char* hostname)
+{
+ mailbox->hostname = xbt_strdup(hostname);
+}
+
+msg_mailbox_t
+MSG_mailbox_get_by_alias(const char* alias)
+{
+
+ msg_mailbox_t mailbox = xbt_dict_get_or_null(msg_mailboxes,alias);
+
+ if(!mailbox)
+ {
+ mailbox = MSG_mailbox_new(alias);
+ MSG_mailbox_set_hostname(mailbox,MSG_host_self()->name);
+ }
+
+ return mailbox;
+}
+
+msg_mailbox_t
+MSG_mailbox_get_by_channel(m_host_t host, m_channel_t channel)
+{
+ xbt_assert0((host != NULL), "Invalid host");
+ xbt_assert1((channel >= 0)&& (channel < msg_global->max_channel), "Invalid channel %d",channel);
+
+ return host->simdata->mailboxes[(size_t)channel];
+}
+
+MSG_error_t
+MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, m_task_t* task, m_host_t host, double timeout)
+{
+ m_process_t process = MSG_process_self();
+ m_task_t t = NULL;
+ m_host_t h = NULL;
+ simdata_task_t t_simdata = NULL;
+ simdata_host_t h_simdata = NULL;
+ int first_time = 1;
+
+ smx_cond_t cond = NULL; //conditional wait if the task isn't on the channel yet
+
+ CHECK_HOST();
+
+ /* Sanity check */
+ xbt_assert0(task, "Null pointer for the task storage");
+
+ if (*task)
+ CRITICAL0("MSG_task_get() was asked to write in a non empty task struct.");
+
+ /* Get the task */
+ h = MSG_host_self();
+ h_simdata = h->simdata;
+
+ SIMIX_mutex_lock(h->simdata->mutex);
+
+ 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);
+ }
+ }
+
+ 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);
+ }
+}
+
+MSG_error_t
+MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, m_task_t task, 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;
+
+ 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);
+ }
+}
