-#include "mailbox.h"\r
-#include "msg/private.h"\r
-\r
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_mailbox, msg,\r
- "Logging specific to MSG (mailbox)");\r
-\r
-static xbt_dict_t \r
-msg_mailboxes = NULL;\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_create(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 = alias ? xbt_strdup(alias) : NULL;\r
- mailbox->hostname = NULL;\r
- \r
- return mailbox;\r
-}\r
-\r
-msg_mailbox_t\r
-MSG_mailbox_new(const char *alias)\r
-{\r
- msg_mailbox_t mailbox = MSG_mailbox_create(alias);\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_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
- xbt_fifo_free(_mailbox->tasks);\r
- free(_mailbox->alias);\r
- \r
- free(_mailbox);\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
-\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
- if (task->simdata->source == host) {\r
- xbt_fifo_remove_item(mailbox->tasks, item);\r
- return task;\r
- }\r
-\r
- return NULL;\r
-}\r
-\r
-int\r
-MSG_mailbox_get_count_host_waiting_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
-msg_mailbox_t\r
-MSG_mailbox_get_by_alias(const char* alias)\r
-{\r
-\r
- msg_mailbox_t mailbox = xbt_dict_get_or_null(msg_mailboxes,alias);\r
- \r
- if(!mailbox)\r
- {\r
- mailbox = MSG_mailbox_new(alias);\r
- MSG_mailbox_set_hostname(mailbox,MSG_host_self()->name);\r
- }\r
- \r
- return mailbox; \r
-}\r
-\r
-msg_mailbox_t\r
-MSG_mailbox_get_by_channel(m_host_t host, m_channel_t channel)\r
-{\r
- xbt_assert0((host != NULL), "Invalid host");\r
- xbt_assert1((channel >= 0)&& (channel < msg_global->max_channel), "Invalid channel %d",channel);\r
-\r
- return host->simdata->mailboxes[(size_t)channel];\r
-}\r
-\r
-MSG_error_t \r
-MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, m_task_t* task, m_host_t host, double timeout)\r
-{\r
- m_process_t process = MSG_process_self();\r
- m_task_t t = NULL;\r
- m_host_t h = NULL;\r
- simdata_task_t t_simdata = NULL;\r
- simdata_host_t h_simdata = NULL;\r
- int first_time = 1;\r
- \r
- smx_cond_t cond = NULL; //conditional wait if the task isn't on the channel yet\r
- \r
- CHECK_HOST();\r
- \r
- /* Sanity check */\r
- xbt_assert0(task, "Null pointer for the task storage");\r
- \r
- if (*task)\r
- CRITICAL0("MSG_task_get() was asked to write in a non empty task struct.");\r
- \r
- /* Get the task */\r
- h = MSG_host_self();\r
- h_simdata = h->simdata;\r
- \r
- SIMIX_mutex_lock(h->simdata->mutex);\r
- \r
- while (1) \r
- {\r
- /* if the mailbox is empty (has no task */\r
- if(!MSG_mailbox_is_empty(mailbox))\r
- {\r
- if(!host) \r
- {\r
- /* pop the head of the mailbox */\r
- t = MSG_mailbox_pop_head(mailbox);\r
- break;\r
- } \r
- else \r
- {\r
- /* get the first task of the host */\r
- if(NULL != (t = MSG_mailbox_get_first_host_task(mailbox,host)))\r
- break;\r
- }\r
- }\r
- \r
- if(timeout > 0) \r
- {\r
- if (!first_time) \r
- {\r
- SIMIX_mutex_unlock(h->simdata->mutex);\r
- /* set the simix condition of the mailbox to NULL */\r
- MSG_mailbox_set_cond(mailbox, NULL);\r
- SIMIX_cond_destroy(cond);\r
- MSG_RETURN(MSG_TRANSFER_FAILURE);\r
- }\r
- }\r
- \r
- xbt_assert1(!MSG_mailbox_get_cond(mailbox),"A process is already blocked on the channel %s", MSG_mailbox_get_alias(mailbox));\r
- \r
- cond = SIMIX_cond_init();\r
- \r
- /* set the condition of the mailbox */\r
- MSG_mailbox_set_cond(mailbox, cond);\r
- \r
- if (timeout > 0)\r
- SIMIX_cond_wait_timeout(cond, h->simdata->mutex, timeout);\r
- else \r
- SIMIX_cond_wait(MSG_mailbox_get_cond(mailbox), h->simdata->mutex);\r
- \r
- \r
- if (SIMIX_host_get_state(h_simdata->smx_host) == 0)\r
- MSG_RETURN(MSG_HOST_FAILURE);\r
- \r
- first_time = 0;\r
- }\r
- \r
- SIMIX_mutex_unlock(h->simdata->mutex);\r
- \r
- DEBUG1("OK, got a task (%s)", t->name);\r
- /* clean conditional */\r
- if (cond) \r
- {\r
- SIMIX_cond_destroy(cond);\r
- \r
- MSG_mailbox_set_cond(mailbox,NULL);\r
- }\r
- \r
- t_simdata = t->simdata;\r
- t_simdata->receiver = process;\r
- *task = t;\r
- \r
- SIMIX_mutex_lock(t_simdata->mutex);\r
- \r
- /* Transfer */\r
- /* create SIMIX action to the communication */\r
- t_simdata->comm = SIMIX_action_communicate(\r
- t_simdata->sender->simdata->m_host->simdata->smx_host,\r
- process->simdata->m_host->simdata->smx_host,\r
- t->name, \r
- t_simdata->message_size,\r
- t_simdata->rate\r
- );\r
- \r
- /* if the process is suspend, create the action but stop its execution, it will be restart when the sender process resume */\r
- if (MSG_process_is_suspended(t_simdata->sender)) \r
- {\r
- DEBUG1("Process sender (%s) suspended", t_simdata->sender->name);\r
- SIMIX_action_set_priority(t_simdata->comm, 0);\r
- }\r
- \r
- process->simdata->waiting_task = t;\r
- SIMIX_register_action_to_condition(t_simdata->comm, t_simdata->cond);\r
- \r
- while (1) \r
- {\r
- SIMIX_cond_wait(t_simdata->cond, t_simdata->mutex);\r
- \r
- if (SIMIX_action_get_state(t_simdata->comm) != SURF_ACTION_RUNNING)\r
- break;\r
- }\r
- \r
- SIMIX_unregister_action_to_condition(t_simdata->comm, t_simdata->cond);\r
- process->simdata->waiting_task = NULL;\r
- \r
- /* the task has already finished and the pointer must be null */\r
- if (t->simdata->sender) \r
- {\r
- t->simdata->sender->simdata->waiting_task = NULL;\r
- }\r
- \r
- /* for this process, don't need to change in get function */\r
- t->simdata->receiver = NULL;\r
- SIMIX_mutex_unlock(t_simdata->mutex);\r
- \r
- \r
- if (SIMIX_action_get_state(t_simdata->comm) == SURF_ACTION_DONE) \r
- {\r
- SIMIX_action_destroy(t_simdata->comm);\r
- t_simdata->comm = NULL;\r
- t_simdata->using--;\r
- MSG_RETURN(MSG_OK);\r
- } \r
- else if (SIMIX_host_get_state(h_simdata->smx_host) == 0) \r
- {\r
- SIMIX_action_destroy(t_simdata->comm);\r
- t_simdata->comm = NULL;\r
- t_simdata->using--;\r
- MSG_RETURN(MSG_HOST_FAILURE);\r
- } \r
- else \r
- {\r
- SIMIX_action_destroy(t_simdata->comm);\r
- t_simdata->comm = NULL;\r
- t_simdata->using--;\r
- MSG_RETURN(MSG_TRANSFER_FAILURE);\r
- }\r
-}\r
-\r
-MSG_error_t \r
-MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, m_task_t task, double timeout)\r
-{\r
- m_process_t process = MSG_process_self();\r
- const char* hostname;\r
- simdata_task_t task_simdata = NULL;\r
- m_host_t local_host = NULL;\r
- m_host_t remote_host = NULL;\r
- smx_cond_t cond = NULL;\r
-\r
- CHECK_HOST();\r
- \r
- task_simdata = task->simdata;\r
- task_simdata->sender = process;\r
- task_simdata->source = MSG_process_get_host(process);\r
- \r
- xbt_assert0(task_simdata->using == 1,"This task is still being used somewhere else. You cannot send it now. Go fix your code!");\r
- \r
- task_simdata->comm = NULL;\r
- \r
- task_simdata->using++;\r
- local_host = ((simdata_process_t) process->simdata)->m_host;\r
- \r
- /* get the host name containing the mailbox */\r
- hostname = MSG_mailbox_get_hostname(mailbox);\r
-\r
- remote_host = MSG_get_host_by_name(hostname);\r
-\r
- if(NULL == remote_host)\r
- THROW1(not_found_error,0,"Host %s not fount", hostname);\r
-\r
-\r
- 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));\r
- \r
- SIMIX_mutex_lock(remote_host->simdata->mutex);\r
-\r
- /* put the task in the mailbox */\r
- MSG_mailbox_put(mailbox,task);\r
- \r
- if(NULL != (cond = MSG_mailbox_get_cond(mailbox)))\r
- {\r
- DEBUG0("Somebody is listening. Let's wake him up!");\r
- SIMIX_cond_signal(cond);\r
- }\r
-\r
- \r
- \r
- SIMIX_mutex_unlock(remote_host->simdata->mutex);\r
- \r
- SIMIX_mutex_lock(task->simdata->mutex);\r
-\r
- process->simdata->waiting_task = task;\r
- \r
- if(timeout > 0) \r
- {\r
- xbt_ex_t e;\r
- double time;\r
- double time_elapsed;\r
- time = SIMIX_get_clock();\r
- \r
- TRY \r
- {\r
- /*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 */\r
- while (1) \r
- {\r
- time_elapsed = SIMIX_get_clock() - time;\r
- SIMIX_cond_wait_timeout(task->simdata->cond, task->simdata->mutex,timeout - time_elapsed);\r
- \r
- if ((task->simdata->comm != NULL) && (SIMIX_action_get_state(task->simdata->comm) != SURF_ACTION_RUNNING))\r
- break;\r
- }\r
- } \r
- CATCH(e) \r
- {\r
- if(e.category==timeout_error) \r
- {\r
- xbt_ex_free(e);\r
- /* verify if the timeout happened and the communication didn't started yet */\r
- if (task->simdata->comm == NULL) \r
- {\r
- process->simdata->waiting_task = NULL;\r
- \r
- /* remove the task from the mailbox */\r
- MSG_mailbox_remove(mailbox,task);\r
- \r
- if (task->simdata->receiver) \r
- {\r
- task->simdata->receiver->simdata->waiting_task = NULL;\r
- }\r
- \r
- task->simdata->sender = NULL;\r
- \r
- SIMIX_mutex_unlock(task->simdata->mutex);\r
- MSG_RETURN(MSG_TRANSFER_FAILURE);\r
- }\r
- } \r
- else \r
- {\r
- RETHROW;\r
- }\r
- }\r
- } \r
- else \r
- {\r
- while (1) \r
- {\r
- SIMIX_cond_wait(task->simdata->cond, task->simdata->mutex);\r
- \r
- if (SIMIX_action_get_state(task->simdata->comm) != SURF_ACTION_RUNNING)\r
- break;\r
- }\r
- }\r
- \r
- DEBUG1("Action terminated %s", task->name);\r
- process->simdata->waiting_task = NULL;\r
- \r
- /* the task has already finished and the pointer must be null */\r
- if (task->simdata->receiver) \r
- {\r
- task->simdata->receiver->simdata->waiting_task = NULL;\r
- }\r
- \r
- task->simdata->sender = NULL;\r
- SIMIX_mutex_unlock(task->simdata->mutex);\r
-\r
- \r
- if (SIMIX_action_get_state(task->simdata->comm) == SURF_ACTION_DONE)\r
- {\r
- MSG_RETURN(MSG_OK);\r
- } \r
- else if (SIMIX_host_get_state(local_host->simdata->smx_host) == 0) \r
- {\r
- MSG_RETURN(MSG_HOST_FAILURE);\r
- } \r
- else \r
- {\r
- MSG_RETURN(MSG_TRANSFER_FAILURE);\r
- }\r
-}\r
+/* Mailboxes in MSG */
+
+/* Copyright (c) 2008, 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include "msg_mailbox.h"
+#include "msg_private.h"
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_mailbox, msg,
+ "Logging specific to MSG (mailbox)");
+
+msg_mailbox_t MSG_mailbox_new(const char *alias)
+{
+ return simcall_rdv_create(alias);
+}
+
+void MSG_mailbox_free(void *mailbox)
+{
+ simcall_rdv_destroy((msg_mailbox_t)mailbox);
+}
+
+int MSG_mailbox_is_empty(msg_mailbox_t mailbox)
+{
+ return (NULL == simcall_rdv_get_head(mailbox));
+}
+
+m_task_t MSG_mailbox_get_head(msg_mailbox_t mailbox)
+{
+ smx_action_t comm = simcall_rdv_get_head(mailbox);
+
+ if (!comm)
+ return NULL;
+
+ return (m_task_t) simcall_comm_get_src_data(comm);
+}
+
+int
+MSG_mailbox_get_count_host_waiting_tasks(msg_mailbox_t mailbox,
+ m_host_t host)
+{
+ return simcall_rdv_comm_count_by_host(mailbox,
+ host->simdata->smx_host);
+}
+
+msg_mailbox_t MSG_mailbox_get_by_alias(const char *alias)
+{
+
+ msg_mailbox_t mailbox = simcall_rdv_get_by_name(alias);
+
+ if (!mailbox)
+ mailbox = MSG_mailbox_new(alias);
+
+ return mailbox;
+}
+
+msg_mailbox_t MSG_mailbox_get_by_channel(m_host_t host,
+ m_channel_t channel)
+{
+ XBT_WARN("DEPRECATED! Now use MSG_mailbox_get_by_alias");
+ xbt_assert((host != NULL), "Invalid host");
+ xbt_assert((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)
+{
+ xbt_ex_t e;
+ MSG_error_t ret = MSG_OK;
+ /* We no longer support getting a task from a specific host */
+ if (host)
+ THROW_UNIMPLEMENTED;
+
+ CHECK_HOST();
+#ifdef HAVE_TRACING
+ TRACE_msg_task_get_start();
+ volatile double start_time = MSG_get_clock();
+#endif
+
+ /* Sanity check */
+ xbt_assert(task, "Null pointer for the task storage");
+
+ if (*task)
+ XBT_WARN
+ ("Asked to write the received task in a non empty struct -- proceeding.");
+
+ /* Try to receive it by calling SIMIX network layer */
+ TRY {
+ simcall_comm_recv(mailbox, task, NULL, NULL, NULL, timeout);
+ XBT_DEBUG("Got task %s from %p",(*task)->name,mailbox);
+ (*task)->simdata->isused=0;
+ }
+ CATCH(e) {
+ switch (e.category) {
+ case host_error:
+ ret = MSG_HOST_FAILURE;
+ break;
+ case network_error:
+ ret = MSG_TRANSFER_FAILURE;
+ break;
+ case timeout_error:
+ ret = MSG_TIMEOUT;
+ break;
+ default:
+ RETHROW;
+ }
+ xbt_ex_free(e);
+ }
+
+#ifdef HAVE_TRACING
+ if (ret != MSG_HOST_FAILURE &&
+ ret != MSG_TRANSFER_FAILURE &&
+ ret != MSG_TIMEOUT) {
+ TRACE_msg_task_get_end(start_time, *task);
+ }
+#endif
+ MSG_RETURN(ret);
+}
+
+MSG_error_t
+MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, m_task_t task,
+ double timeout)
+{
+ xbt_ex_t e;
+ MSG_error_t ret = MSG_OK;
+ simdata_task_t t_simdata = NULL;
+ m_process_t process = MSG_process_self();
+ simdata_process_t p_simdata = SIMIX_process_self_get_data(process);
+ CHECK_HOST();
+
+#ifdef HAVE_TRACING
+ int call_end = TRACE_msg_task_put_start(task); //must be after CHECK_HOST()
+#endif
+
+ /* Prepare the task to send */
+ t_simdata = task->simdata;
+ t_simdata->sender = process;
+ t_simdata->source = ((simdata_process_t) SIMIX_process_self_get_data(process))->m_host;
+
+ xbt_assert(t_simdata->isused == 0,
+ "This task is still being used somewhere else. You cannot send it now. Go fix your code!");
+
+ t_simdata->isused=1;
+ msg_global->sent_msg++;
+
+
+ p_simdata->waiting_task = task;
+
+ /* Try to send it by calling SIMIX network layer */
+ TRY {
+ smx_action_t comm = simcall_comm_isend(mailbox, t_simdata->message_size,
+ t_simdata->rate, task, sizeof(void *),
+ NULL, NULL, task, 0);
+#ifdef HAVE_TRACING
+ if (TRACE_is_enabled()) {
+ simcall_set_category(comm, task->category);
+ }
+#endif
+ t_simdata->comm = comm;
+ simcall_comm_wait(comm, timeout);
+ }
+
+ CATCH(e) {
+ switch (e.category) {
+ case host_error:
+ ret = MSG_HOST_FAILURE;
+ break;
+ case network_error:
+ ret = MSG_TRANSFER_FAILURE;
+ break;
+ case timeout_error:
+ ret = MSG_TIMEOUT;
+ break;
+ default:
+ RETHROW;
+ }
+ xbt_ex_free(e);
+
+ /* If the send failed, it is not used anymore */
+ t_simdata->isused = 0;
+ }
+
+ t_simdata->comm = NULL;
+ p_simdata->waiting_task = NULL;
+#ifdef HAVE_TRACING
+ if (call_end)
+ TRACE_msg_task_put_end();
+#endif
+ MSG_RETURN(ret);
+}
