X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/cb8c69ffa2625f5d14255ede0a59d9ab964bffab..e7387f5bc38af29fe998381e97c6a4445a1b1557:/src/msg/msg_mailbox.c

diff --git a/src/msg/msg_mailbox.c b/src/msg/msg_mailbox.c
index 22917b66d1..83840e5c73 100644
--- a/src/msg/msg_mailbox.c
+++ b/src/msg/msg_mailbox.c
@@ -1,6 +1,6 @@
 /* Mailboxes in MSG */
 
-/* Copyright (c) 2008, 2009, 2010. The SimGrid Team.
+/* Copyright (c) 2008-2013. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
@@ -8,6 +8,7 @@
 
 #include "msg_mailbox.h"
 #include "msg_private.h"
+
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_mailbox, msg,
                                 "Logging specific to MSG (mailbox)");
 
@@ -26,22 +27,21 @@ 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)
+msg_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);
+  return (msg_task_t) simcall_comm_get_src_data(comm);
 }
 
 int
 MSG_mailbox_get_count_host_waiting_tasks(msg_mailbox_t mailbox,
-                                         m_host_t host)
+                                         msg_host_t host)
 {
-  return simcall_rdv_comm_count_by_host(mailbox,
-                                      host->simdata->smx_host);
+  return simcall_rdv_comm_count_by_host(mailbox, host);
 }
 
 msg_mailbox_t MSG_mailbox_get_by_alias(const char *alias)
@@ -55,32 +55,50 @@ msg_mailbox_t MSG_mailbox_get_by_alias(const char *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);
+/** \ingroup msg_mailbox_management
+ * \brief Set the mailbox to receive in asynchronous mode
+ *
+ * All messages sent to this mailbox will be transferred to 
+ * the receiver without waiting for the receive call. 
+ * The receive call will still be necessary to use the received data.
+ * If there is a need to receive some messages asynchronously, and some not, 
+ * two different mailboxes should be used.
+ *
+ * \param alias The name of the mailbox 
+ */
+void MSG_mailbox_set_async(const char *alias){
+  msg_mailbox_t mailbox = MSG_mailbox_get_by_alias(alias);
+
+  simcall_rdv_set_receiver(mailbox, SIMIX_process_self());
+  XBT_VERB("%s mailbox set to receive eagerly for process %p\n",alias, SIMIX_process_self());
 
-  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)
+/** \ingroup msg_mailbox_management
+ * \brief Get a task from a mailbox on a given host
+ *
+ * \param mailbox The mailbox where the task was sent
+ * \param task a memory location for storing a #msg_task_t.
+ * \param host a #msg_host_t host from where the task was sent
+ * \param timeout a timeout
+
+ * \return Returns
+ * #MSG_OK if the task was successfully received,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise.
+ */
+msg_error_t
+MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, msg_task_t * task,
+                         msg_host_t host, double timeout)
 {
   xbt_ex_t e;
-  MSG_error_t ret = MSG_OK;
+  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();
+  double start_time = MSG_get_clock();
 #endif
 
   /* Sanity check */
@@ -98,7 +116,7 @@ MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, m_task_t * task,
   }
   CATCH(e) {
     switch (e.category) {
-    case host_error:
+    case cancel_error:
       ret = MSG_HOST_FAILURE;
       break;
     case network_error:
@@ -123,16 +141,83 @@ MSG_mailbox_get_task_ext(msg_mailbox_t mailbox, m_task_t * task,
   MSG_RETURN(ret);
 }
 
-MSG_error_t
-MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, m_task_t task,
+/** \ingroup msg_mailbox_management
+ * \brief Get a task from a mailbox on a given host at a given rate
+ *
+ * \param mailbox The mailbox where the task was sent
+ * \param task a memory location for storing a #msg_task_t.
+ * \param host a #msg_host_t host from where the task was sent
+ * \param timeout a timeout
+ * \param rate a rate
+
+ * \return Returns
+ * #MSG_OK if the task was successfully received,
+ * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise.
+ */
+msg_error_t
+MSG_mailbox_get_task_ext_bounded(msg_mailbox_t mailbox, msg_task_t * task,
+                         msg_host_t host, double timeout, double rate)
+{
+  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;
+
+#ifdef HAVE_TRACING
+  TRACE_msg_task_get_start();
+  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_bounded(mailbox, task, NULL, NULL, NULL, timeout, rate);
+    XBT_DEBUG("Got task %s from %p",(*task)->name,mailbox);
+    (*task)->simdata->isused=0;
+  }
+  CATCH(e) {
+    switch (e.category) {
+    case cancel_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, msg_task_t task,
                              double timeout)
 {
   xbt_ex_t e;
-  MSG_error_t ret = MSG_OK;
+  msg_error_t ret = MSG_OK;
   simdata_task_t t_simdata = NULL;
-  m_process_t process = MSG_process_self();
+  msg_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()
@@ -155,7 +240,8 @@ MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, m_task_t task,
 
   /* Try to send it by calling SIMIX network layer */
   TRY {
-      smx_action_t comm = simcall_comm_isend(mailbox, t_simdata->message_size,
+    smx_action_t comm = NULL; /* MC needs the comm to be set to NULL during the simix call  */
+    comm = simcall_comm_isend(mailbox, t_simdata->message_size,
                                   t_simdata->rate, task, sizeof(void *),
                                   NULL, NULL, task, 0);
 #ifdef HAVE_TRACING
@@ -169,7 +255,7 @@ MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, m_task_t task,
 
   CATCH(e) {
     switch (e.category) {
-    case host_error:
+    case cancel_error:
       ret = MSG_HOST_FAILURE;
       break;
     case network_error:
@@ -195,3 +281,17 @@ MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, m_task_t task,
 #endif
   MSG_RETURN(ret);
 }
+
+#ifdef MSG_USE_DEPRECATED
+msg_mailbox_t MSG_mailbox_get_by_channel(msg_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->mailboxes[(size_t) channel];
+}
+#endif