X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/b3d18155a991509df0050df72c7531ffbcae7efc..1d788f0aa070c370acfaa33dee4004958c48c145:/src/msg/task.c

diff --git a/src/msg/task.c b/src/msg/task.c
index 530be8bd15..80a7c72692 100644
--- a/src/msg/task.c
+++ b/src/msg/task.c
@@ -13,6 +13,18 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(task, msg,
 
 static char sprint_buffer[64];
 
+/** \defgroup m_task_management Managing functions of Tasks
+ *  \brief This section describes the task structure of MSG
+ *  (#m_task_t) and the functions for managing it.
+ *
+ *  Since most scheduling algorithms rely on a concept of task
+ *  that can be either <em>computed</em> locally or
+ *  <em>transferred</em> on another processor, it seems to be the
+ *  right level of abstraction for our purposes. A <em>task</em>
+ *  may then be defined by a <em>computing amount</em>, a
+ *  <em>message size</em> and some <em>private data</em>.
+ */
+
 /********************************* Task **************************************/
 /** \ingroup m_task_management
  * \brief Creates a new #m_task_t.
@@ -48,9 +60,11 @@ m_task_t MSG_task_create(const char *name, long double compute_duration,
   simdata->sleeping = xbt_dynar_new(sizeof(m_process_t),NULL);
   simdata->computation_amount = compute_duration;
   simdata->message_size = message_size;
+  simdata->rate = -1.0;
   simdata->using = 1;
   simdata->sender = NULL;
 
+
   return task;
 }
 
@@ -67,6 +81,18 @@ void *MSG_task_get_data(m_task_t task)
   return (task->data);
 }
 
+/** \ingroup m_task_management
+ * \brief Return the sender of a #m_task_t.
+ *
+ * This functions returns the #m_process_t which sent this task
+ */
+m_process_t MSG_task_get_sender(m_task_t task)
+{
+   xbt_assert0(task, "Invalid parameters");
+   return ((simdata_task_t) task->simdata)->sender;
+}
+
+
 /** \ingroup m_task_management
  * \brief Destroy a #m_task_t.
  *