1 /* Copyright (c) 2009 The SimGrid team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "msg/msg.h" /* core library */
7 #include "xbt/sysdep.h" /* calloc */
9 /* Create a log channel to have nice outputs. */
11 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
12 "Messages specific for this msg example");
14 /** The guy we will move from host to host. It move alone and then is moved by policeman back */
15 static int emigrant(int argc, char *argv[])
18 char *destination = NULL;
22 while (1){ // I am an eternal emigrant
23 MSG_task_receive(&(task), "master_mailbox");
24 destination = (char*)MSG_task_get_data (task);
25 MSG_task_destroy (task);
26 if (!destination) break; //there is no destination, die
27 MSG_process_migrate(MSG_process_self(), MSG_get_host_by_name(destination));
28 MSG_process_sleep(2); // I am tired, have to sleep for 2 seconds
35 static int master(int argc, char *argv[])
39 // I am the master of emigrant process,
40 // I tell it where it must emigrate to.
41 xbt_dynar_t destinations = xbt_dynar_new (sizeof(char*), &xbt_free_ref);
42 xbt_dynar_push_as (destinations, char*, xbt_strdup ("Tremblay"));
43 xbt_dynar_push_as (destinations, char*, xbt_strdup ("Jupiter"));
44 xbt_dynar_push_as (destinations, char*, xbt_strdup ("Fafard"));
45 xbt_dynar_push_as (destinations, char*, xbt_strdup ("Ginette"));
46 xbt_dynar_push_as (destinations, char*, xbt_strdup ("Bourassa"));
47 xbt_dynar_push_as (destinations, char*, xbt_strdup ("Fafard"));
48 xbt_dynar_push_as (destinations, char*, xbt_strdup ("Tremblay"));
49 xbt_dynar_push_as (destinations, char*, xbt_strdup ("Ginette"));
50 xbt_dynar_push_as (destinations, char*, NULL);
54 xbt_dynar_foreach(destinations, i, destination){
55 task = MSG_task_create("task", 0, 0, NULL);
57 MSG_task_set_data(task, xbt_strdup (destination));
59 TRACE_msg_set_task_category(task, "migration_order");
60 MSG_task_send (task, "master_mailbox");
63 xbt_dynar_free (&destinations);
68 int main(int argc, char *argv[])
70 /* Argument checking */
71 MSG_global_init(&argc, argv);
73 XBT_CRITICAL("Usage: %s platform_file deployment_file\n", argv[0]);
77 char *platform_file = argv[1];
78 char *deployment_file = argv[2];
79 MSG_create_environment(platform_file);
81 TRACE_category ("migration_order");
83 /* Application deployment */
84 MSG_function_register("emigrant", emigrant);
85 MSG_function_register("master", master);
86 MSG_launch_application(deployment_file);