X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/104ec12984d49e726b38234c5d8ecbfd3732b91e..8ba5ebec745c34478bd1082a07edcb76aab3aefb:/src/msg/msg_gos.c

diff --git a/src/msg/msg_gos.c b/src/msg/msg_gos.c
index 320098830a..aa2ec0ddae 100644
--- a/src/msg/msg_gos.c
+++ b/src/msg/msg_gos.c
@@ -1,5 +1,4 @@
-/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2004-2011. 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. */
@@ -10,20 +9,9 @@
 #include "xbt/log.h"
 #include "xbt/sysdep.h"
 
-
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_gos, msg,
                                 "Logging specific to MSG (gos)");
 
-/** \ingroup msg_gos_functions
- *
- * \brief Return the last value returned by a MSG function (except
- * MSG_get_errno...).
- */
-MSG_error_t MSG_get_errno(void)
-{
-  return PROCESS_GET_ERRNO();
-}
-
 /** \ingroup msg_gos_functions
  * \brief Executes a task and waits for its termination.
  *
@@ -31,8 +19,8 @@ MSG_error_t MSG_get_errno(void)
  * takes only one parameter.
  * \param task a #m_task_t to execute on the location on which the
  agent is running.
- * \return #MSG_FATAL if \a task is not properly initialized and
- * #MSG_OK otherwise.
+ * \return #MSG_OK if the task was successfully completed, #MSG_TASK_CANCELED
+ * or #MSG_HOST_FAILURE otherwise
  */
 MSG_error_t MSG_task_execute(m_task_t task)
 {
@@ -62,16 +50,18 @@ MSG_error_t MSG_task_execute(m_task_t task)
 #endif
     return MSG_OK;
   }
+
+  m_process_t self = SIMIX_process_self();
+  p_simdata = SIMIX_process_self_get_data(self);
   simdata->isused=1;
   simdata->compute =
-      SIMIX_req_host_execute(task->name, SIMIX_host_self(),
+      SIMIX_req_host_execute(task->name, p_simdata->m_host->simdata->smx_host,
                            simdata->computation_amount,
                            simdata->priority);
 #ifdef HAVE_TRACING
   SIMIX_req_set_category(simdata->compute, task->category);
 #endif
 
-  p_simdata = SIMIX_process_self_get_data();
   p_simdata->waiting_action = simdata->compute;
   comp_state = SIMIX_req_host_execution_wait(simdata->compute);
   p_simdata->waiting_action = NULL;
@@ -171,7 +161,7 @@ MSG_error_t MSG_parallel_task_execute(m_task_t task)
   CHECK_HOST();
 
   simdata = task->simdata;
-  p_simdata = SIMIX_process_self_get_data();
+  p_simdata = SIMIX_process_self_get_data(SIMIX_process_self());
 
   xbt_assert((!simdata->compute)
               && (task->simdata->isused == 0),
@@ -269,8 +259,7 @@ MSG_error_t MSG_process_sleep(double nb_sec)
  listening. This value has to be >=0 and < than the maximal
  number of channels fixed with MSG_set_channel_number().
  * \param host the host that is to be watched.
- * \return #MSG_FATAL if \a task is equal to \c NULL, #MSG_WARNING
- if \a *task is not equal to \c NULL, and #MSG_OK otherwise.
+ * \return a #MSG_error_t indicating whether the operation was successful (#MSG_OK), or why it failed otherwise.
  */
 MSG_error_t
 MSG_task_get_from_host(m_task_t * task, m_channel_t channel, m_host_t host)
@@ -289,8 +278,7 @@ MSG_task_get_from_host(m_task_t * task, m_channel_t channel, m_host_t host)
  * \param channel the channel on which the agent should be
  listening. This value has to be >=0 and < than the maximal
  number of channels fixed with MSG_set_channel_number().
- * \return #MSG_FATAL if \a task is equal to \c NULL, #MSG_WARNING
- * if \a *task is not equal to \c NULL, and #MSG_OK otherwise.
+ * \return a #MSG_error_t indicating whether the operation was successful (#MSG_OK), or why it failed otherwise.
  */
 MSG_error_t MSG_task_get(m_task_t * task, m_channel_t channel)
 {
@@ -312,8 +300,7 @@ MSG_error_t MSG_task_get(m_task_t * task, m_channel_t channel)
  up. In such a case, #MSG_TRANSFER_FAILURE will be returned, \a task
  will not be modified and will still be
  equal to \c NULL when returning.
- * \return #MSG_FATAL if \a task is equal to \c NULL, #MSG_WARNING
- if \a *task is not equal to \c NULL, and #MSG_OK otherwise.
+ * \return a #MSG_error_t indicating whether the operation was successful (#MSG_OK), or why it failed otherwise.
  */
 MSG_error_t
 MSG_task_get_with_timeout(m_task_t * task, m_channel_t channel,
@@ -385,6 +372,7 @@ msg_comm_t MSG_task_isend(m_task_t task, const char *alias)
 {
   return MSG_task_isend_with_matching(task,alias,NULL,NULL);
 }
+
 /** \ingroup msg_gos_functions
  * \brief Sends a task on a mailbox, with support for matching requests
  *
@@ -412,7 +400,7 @@ XBT_INLINE msg_comm_t MSG_task_isend_with_matching(m_task_t task, const char *al
   /* Prepare the task to send */
   t_simdata = task->simdata;
   t_simdata->sender = process;
-  t_simdata->source = MSG_host_self();
+  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!");
@@ -427,7 +415,7 @@ XBT_INLINE msg_comm_t MSG_task_isend_with_matching(m_task_t task, const char *al
   comm->status = MSG_OK;
   comm->s_comm =
     SIMIX_req_comm_isend(mailbox, t_simdata->message_size,
-                         t_simdata->rate, task, sizeof(void *), match_fun, match_data, 0);
+                         t_simdata->rate, task, sizeof(void *), match_fun, NULL, match_data, 0);
   t_simdata->comm = comm->s_comm; /* FIXME: is the field t_simdata->comm still useful? */
 
   return comm;
@@ -467,7 +455,7 @@ void MSG_task_dsend(m_task_t task, const char *alias, void_f_pvoid_t cleanup)
   /* Prepare the task to send */
   t_simdata = task->simdata;
   t_simdata->sender = process;
-  t_simdata->source = MSG_host_self();
+  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!");
@@ -476,8 +464,9 @@ void MSG_task_dsend(m_task_t task, const char *alias, void_f_pvoid_t cleanup)
   msg_global->sent_msg++;
 
   /* Send it by calling SIMIX network layer */
-  SIMIX_req_comm_isend(mailbox, t_simdata->message_size,
-                       t_simdata->rate, task, sizeof(void *), NULL, cleanup, 1);
+  smx_action_t comm = SIMIX_req_comm_isend(mailbox, t_simdata->message_size,
+                       t_simdata->rate, task, sizeof(void *), NULL,cleanup, NULL, 1);
+  t_simdata->comm = comm;
 }
 
 /** \ingroup msg_gos_functions
@@ -503,7 +492,7 @@ msg_comm_t MSG_task_irecv(m_task_t *task, const char *name)
 
   if (*task)
     XBT_CRITICAL
-        ("MSG_task_get() was asked to write in a non empty task struct.");
+        ("MSG_task_irecv() was asked to write in a non empty task struct.");
 
   /* Try to receive it by calling SIMIX network layer */
   msg_comm_t comm = xbt_new0(s_msg_comm_t, 1);
@@ -529,6 +518,11 @@ int MSG_comm_test(msg_comm_t comm)
   int finished = 0;
   TRY {
     finished = SIMIX_req_comm_test(comm->s_comm);
+
+    if (finished && comm->task_received != NULL) {
+      /* I am the receiver */
+      (*comm->task_received)->simdata->isused = 0;
+    }
   }
   CATCH(e) {
     switch (e.category) {
@@ -610,6 +604,11 @@ int MSG_comm_testany(xbt_dynar_t comms)
     comm = xbt_dynar_get_as(comms, finished_index, msg_comm_t);
     /* the communication is finished */
     comm->status = status;
+
+    if (status == MSG_OK && comm->task_received != NULL) {
+      /* I am the receiver */
+      (*comm->task_received)->simdata->isused = 0;
+    }
   }
 
   return finished_index;
@@ -621,12 +620,6 @@ int MSG_comm_testany(xbt_dynar_t comms)
  */
 void MSG_comm_destroy(msg_comm_t comm)
 {
-  if (comm->task_received != NULL
-      && *comm->task_received != NULL
-      && MSG_comm_get_status(comm) == MSG_OK) {
-    (*comm->task_received)->simdata->isused = 0;
-  }
-
   xbt_free(comm);
 }
 
@@ -740,6 +733,11 @@ int MSG_comm_waitany(xbt_dynar_t comms)
   /* the communication is finished */
   comm->status = status;
 
+  if (comm->task_received != NULL) {
+    /* I am the receiver */
+    (*comm->task_received)->simdata->isused = 0;
+  }
+
   return finished_index;
 }
 
@@ -762,6 +760,25 @@ m_task_t MSG_comm_get_task(msg_comm_t comm)
   return comm->task_received ? *comm->task_received : comm->task_sent;
 }
 
+/**
+ * \brief This function is called by SIMIX to copy the data of a comm.
+ * \param comm the comm
+ * \param buff the data copied
+ * \param buff_size size of the buffer
+ */
+void MSG_comm_copy_data_from_SIMIX(smx_action_t comm, void* buff, size_t buff_size) {
+
+  // copy the task
+  SIMIX_comm_copy_pointer_callback(comm, buff, buff_size);
+
+  // notify the user callback if any
+  if (msg_global->task_copy_callback) {
+    m_task_t task = buff;
+    msg_global->task_copy_callback(task,
+        SIMIX_req_comm_get_src_proc(comm), SIMIX_req_comm_get_dst_proc(comm));
+  }
+}
+
 /** \ingroup msg_gos_functions
  * \brief Put a task on a channel of an host and waits for the end of the
  * transmission.
@@ -782,11 +799,10 @@ m_task_t MSG_comm_get_task(msg_comm_t comm)
  * \param channel the channel on which the agent should put this
  task. This value has to be >=0 and < than the maximal number of
  channels fixed with MSG_set_channel_number().
- * \return #MSG_FATAL if \a task is not properly initialized and
- * #MSG_OK otherwise. Returns #MSG_HOST_FAILURE if the host on which
- * this function was called was shut down. Returns
+ * \return #MSG_HOST_FAILURE if the host on which
+ * this function was called was shut down,
  * #MSG_TRANSFER_FAILURE if the transfer could not be properly done
- * (network failure, dest failure)
+ * (network failure, dest failure) or #MSG_OK if it succeeded.
  */
 MSG_error_t MSG_task_put(m_task_t task, m_host_t dest, m_channel_t channel)
 {
@@ -830,11 +846,10 @@ MSG_task_put_bounded(m_task_t task, m_host_t dest, m_channel_t channel,
  * \param timeout the maximum time to wait for a task before giving
  up. In such a case, #MSG_TRANSFER_FAILURE will be returned, \a task
  will not be modified
- * \return #MSG_FATAL if \a task is not properly initialized and
-#MSG_OK otherwise. Returns #MSG_HOST_FAILURE if the host on which
-this function was called was shut down. Returns
+ * \return #MSG_HOST_FAILURE if the host on which
+this function was called was shut down,
 #MSG_TRANSFER_FAILURE if the transfer could not be properly done
-(network failure, dest failure, timeout...)
+(network failure, dest failure, timeout...) or #MSG_OK if the communication succeeded.
  */
 MSG_error_t
 MSG_task_put_with_timeout(m_task_t task, m_host_t dest,
@@ -979,3 +994,15 @@ int MSG_task_listen_from(const char *alias)
 
   return MSG_process_get_PID(task->simdata->sender);
 }
+
+#ifdef MSG_USE_DEPRECATED
+/** \ingroup msg_gos_functions
+ *
+ * \brief Return the last value returned by a MSG function (except
+ * MSG_get_errno...).
+ */
+MSG_error_t MSG_get_errno(void)
+{
+  return PROCESS_GET_ERRNO();
+}
+#endif