+ xbt_assert0((task != NULL)
+ && (task->simdata != NULL), "Invalid parameter");
+
+ task->simdata->priority = 1 / priority;
+ if (task->simdata->compute)
+ SIMIX_action_set_priority(task->simdata->compute,
+ task->simdata->priority);
+}
+
+
+/** \ingroup m_task_management
+ * \brief Sets the user data of a #m_task_t.
+ *
+ * This function allows to test if a task contains a not_null data
+ * return 1 (if true)
+ */
+int MSG_task_has_data(m_task_t task)
+{
+
+ return (task->data != NULL);