Do not request status if not requested by caller.

[simgrid.git] / src / msg / task.c

diff --git a/src/msg/task.c b/src/msg/task.c
index 38a1b8f..73476e8 100644 (file)
--- a/src/msg/task.c
+++ b/src/msg/task.c
@@ -266,14 +266,23 @@ double MSG_task_get_remaining_computation(m_task_t task)
 
 /** \ingroup m_task_management
  * \brief Returns the total amount received by a task #m_task_t.
- *
+ *        If the communication does not exist it will return 0.
+ *        So, if the communication has FINISHED or FAILED it returns
+ *        zero.
  */
 double MSG_task_get_remaining_communication(m_task_t task)
 {
   xbt_assert0((task != NULL)
               && (task->simdata != NULL), "Invalid parameter");
-  DEBUG1("calling SIMIX_communication_get_remains(%p)",
-         task->simdata->comm);
+
+  if(!task->simdata->comm){
+         DEBUG0("you are trying to retrive remaining information on a NULL action, assuming it is zero");
+         return 0;
+  }else{
+         DEBUG1("calling SIMIX_communication_get_remains(%p)",
+                         task->simdata->comm);
+  }
+
   return SIMIX_communication_get_remains(task->simdata->comm);
 }