X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/25d6952dcf52e6ffc1e4a402af0e2d3c17ac3935..444fd32bb5976fd3fd81197e6c321f21a5ed34b2:/src/msg/task.c

diff --git a/src/msg/task.c b/src/msg/task.c
index 75b98041a7..84d6f90b38 100644
--- a/src/msg/task.c
+++ b/src/msg/task.c
@@ -8,13 +8,12 @@
 #include "private.h"
 #include "xbt/sysdep.h"
 #include "xbt/log.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(task, msg,
-				"Logging specific to MSG (task)");
 
 /** \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.
- *
+ *    \htmlonly <!-- DOXYGEN_NAVBAR_LABEL="Tasks" --> \endhtmlonly
+ * 
  *  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
@@ -59,6 +58,7 @@ m_task_t MSG_task_create(const char *name, double compute_duration,
   simdata->computation_amount = compute_duration;
   simdata->message_size = message_size;
   simdata->rate = -1.0;
+  simdata->priority = 1.0;
   simdata->using = 1;
   simdata->sender = NULL;
 
@@ -89,6 +89,17 @@ m_process_t MSG_task_get_sender(m_task_t task)
    return ((simdata_task_t) task->simdata)->sender;
 }
 
+/** \ingroup m_task_management
+ * \brief Return the source of a #m_task_t.
+ *
+ * This functions returns the #m_host_t from which this task was sent
+ */
+m_host_t MSG_task_get_source(m_task_t task)
+{
+   xbt_assert0(task, "Invalid parameters");
+   return ((simdata_task_t) task->simdata)->source;
+}
+
 /** \ingroup m_task_management
  * \brief Return the name of a #m_task_t.
  *
@@ -192,56 +203,6 @@ double MSG_task_get_data_size(m_task_t task) {
   return task->simdata->message_size;
 }
 
-/* static MSG_error_t __MSG_task_check(m_task_t task) */
-/* { */
-/*   simdata_task_t simdata = NULL; */
-/*   int warning = 0; */
-
-/*   if (task == NULL) {		/\* Fatal *\/ */
-/*     WARNING("Task uninitialized"); */
-/*     return MSG_FATAL; */
-/*   } */
-/*   simdata = task->simdata; */
-
-/*   if (simdata == NULL) {	/\* Fatal *\/ */
-/*     WARNING("Simulator Data uninitialized"); */
-/*     return MSG_FATAL; */
-/*   } */
-
-/*   if (simdata->compute == NULL) {	/\* Fatal if execute ... *\/ */
-/*     WARNING("No duration set for this task"); */
-/*     warning++; */
-/*   } */
-
-/*   if (simdata->message_size == 0) {	/\* Fatal if transfered ... *\/ */
-/*     WARNING("No message_size set for this task"); */
-/*     warning++; */
-/*   } */
-
-/* /\*    if (task->data == NULL) { *\/ */
-/* /\*      WARNING("User Data uninitialized"); *\/ */
-/* /\*      warning++; *\/ */
-/* /\*    } *\/ */
-
-/*   if (warning) */
-/*     return MSG_WARNING; */
-/*   return MSG_OK; */
-/* } */
-
-/* static m_task_t __MSG_task_copy(m_task_t src) */
-/* { */
-/*   m_task_t copy = NULL; */
-/*   simdata_task_t simdata = NULL; */
-
-/*   __MSG_task_check(src); */
-
-/*   simdata = src->simdata; */
-/*   copy = MSG_task_create(src->name, SG_getTaskCost(simdata->compute), */
-/* 			 simdata->message_size, MSG_task_get_data(src)); */
-
-/*   return (copy); */
-/* } */
-
 MSG_error_t __MSG_task_wait_event(m_process_t process, m_task_t task)
 {
   int _cursor;
@@ -261,3 +222,19 @@ MSG_error_t __MSG_task_wait_event(m_process_t process, m_task_t task)
 
   return MSG_OK;
 }
+
+
+/** \ingroup m_task_management
+ * \brief Changes the priority of a computation task. This priority doesn't affect 
+ *        the transfer rate. A priority of 2 will make a task receive two times more
+ *        cpu power than the other ones.
+ *
+ */
+void MSG_task_set_priority(m_task_t task, double priority) {
+  xbt_assert0((task != NULL) && (task->simdata != NULL), "Invalid parameter");
+
+  task->simdata->priority = 1/priority;
+  if(task->simdata->compute)
+    surf_workstation_resource->common_public->
+      set_priority(task->simdata->compute, task->simdata->priority);
+}