X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/d0392de9a3c0fbe9065924ca323d78c99ed03c7c..1b4dc02411d79e4c367d331b85c1b295ec41edff:/examples/msg/trace-process-migration/trace-process-migration.c

diff --git a/examples/msg/trace-process-migration/trace-process-migration.c b/examples/msg/trace-process-migration/trace-process-migration.c
index bcf83c2b19..2a7b21b639 100644
--- a/examples/msg/trace-process-migration/trace-process-migration.c
+++ b/examples/msg/trace-process-migration/trace-process-migration.c
@@ -1,20 +1,11 @@
-/* Copyright (c) 2010-2015. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2010-2019. 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. */
 
-/** @addtogroup MSG_examples
- * 
- * - <b>Process migration: trace-process-migration/trace-process-migration.c</b>. Running this program with the
- *   <i>--cfg=tracing:yes</i> and <i>--cfg=tracing/msg/process:yes</i> options  enables a Gantt-chart visualization of
- *   where the process has been hosted during its execution. Migrations are represented by arrows from the origin to
- *   the destination host.
- */
-
 #include "simgrid/msg.h"
 
-/** The guy we will move from host to host. It move alone and then is moved by policeman back  */
+/* The guy we will move from host to host. It move alone and then is moved by policeman back  */
 static int emigrant(int argc, char *argv[])
 {
   msg_task_t task = NULL;
@@ -26,7 +17,8 @@ static int emigrant(int argc, char *argv[])
     MSG_task_receive(&(task), "master_mailbox");
     destination = (char*)MSG_task_get_data (task);
     MSG_task_destroy (task);
-    if (!destination) break; //there is no destination, die
+    if (destination == NULL)
+      break; //there is no destination, die
     MSG_process_migrate(MSG_process_self(), MSG_host_by_name(destination));
     MSG_process_sleep(2); // I am tired, have to sleep for 2 seconds
     free (destination);
@@ -37,8 +29,6 @@ static int emigrant(int argc, char *argv[])
 
 static int policeman(int argc, char *argv[])
 {
-  msg_task_t task = NULL;
-
   // I am the master of emigrant process,
   // I tell it where it must emigrate to.
   xbt_dynar_t destinations = xbt_dynar_new (sizeof(char*), &xbt_free_ref);
@@ -55,13 +45,12 @@ static int policeman(int argc, char *argv[])
   char *destination;
   unsigned int i;
   xbt_dynar_foreach(destinations, i, destination){
-    task = MSG_task_create("task", 0, 0, NULL);
-    if (destination){
+    msg_task_t task = MSG_task_create("task", 0, 0, NULL);
+    if (destination != NULL){
       MSG_task_set_data(task, xbt_strdup (destination));
     }
     MSG_task_set_category(task, "migration_order");
     MSG_task_send (task, "master_mailbox");
-    task = NULL;
   }
   xbt_dynar_free (&destinations);
   return 0;