-/* $Id$ */
-
-/* Copyright (c) 2009 The SimGrid team. All rights reserved. */
+/* Copyright (c) 2010-2015. 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. */
-#include "msg/msg.h" /* core library */
-#include "xbt/sysdep.h" /* calloc */
+/** @addtogroup MSG_examples
+ *
+ * - <b>tracing/procmig.c</b> This program shows a process migration. Tracing this program with the options below
+ * enables a gantt-chart visualization of where the process has been during its execution. Migrations are represented by
+ * arrows from the origin to the destination host. You might want to run this program with the following parameters:
+ * --cfg=tracing:yes
+ * --cfg=tracing/msg/process:yes
+ * (See \ref tracing_tracing_options for details)
+ */
+
+#include "simgrid/msg.h"
-/* Create a log channel to have nice outputs. */
-#include "xbt/log.h"
-XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
- "Messages specific for this msg example");
+XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
/** 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[])
{
- INFO0("Setting process category");
- TRACE_msg_set_process_category (MSG_process_self(), "emigrant");
- MSG_process_sleep (2);
- INFO0("Migrating to Tremblay");
- MSG_process_change_host(MSG_get_host_by_name("Tremblay"));
- MSG_process_sleep (2);
- INFO0("Migrating to Jupiter");
- MSG_process_change_host(MSG_get_host_by_name("Jupiter"));
- MSG_process_sleep (2);
- INFO0("Migrating to Fafard");
- MSG_process_change_host(MSG_get_host_by_name("Fafard"));
- MSG_process_sleep (2);
- INFO0("Migrating to Ginette");
- MSG_process_change_host(MSG_get_host_by_name("Ginette"));
- MSG_process_sleep (2);
- INFO0("Migrating to Bourassa");
- MSG_process_change_host(MSG_get_host_by_name("Bourassa"));
- MSG_process_sleep (2);
+ msg_task_t task = NULL;
+ char *destination = NULL;
+
+ MSG_process_sleep(2);
+
+ while (1){ // I am an eternal emigrant
+ 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
+ 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);
+ task = NULL;
+ }
return 0;
}
-/** Main function */
-int main(int argc, char *argv[])
+static int master(int argc, char *argv[])
{
- MSG_error_t res = MSG_OK;
+ msg_task_t task = NULL;
- //starting the simulation trace
- TRACE_start_with_mask ("procmig.trace", TRACE_PROCESS);
- TRACE_category ("emigrant");
+ // 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);
+ xbt_dynar_push_as (destinations, char*, xbt_strdup ("Tremblay"));
+ xbt_dynar_push_as (destinations, char*, xbt_strdup ("Jupiter"));
+ xbt_dynar_push_as (destinations, char*, xbt_strdup ("Fafard"));
+ xbt_dynar_push_as (destinations, char*, xbt_strdup ("Ginette"));
+ xbt_dynar_push_as (destinations, char*, xbt_strdup ("Bourassa"));
+ xbt_dynar_push_as (destinations, char*, xbt_strdup ("Fafard"));
+ xbt_dynar_push_as (destinations, char*, xbt_strdup ("Tremblay"));
+ xbt_dynar_push_as (destinations, char*, xbt_strdup ("Ginette"));
+ xbt_dynar_push_as (destinations, char*, NULL);
- /* Argument checking */
- MSG_global_init(&argc, argv);
- if (argc < 3) {
- CRITICAL1("Usage: %s platform_file deployment_file\n", argv[0]);
- CRITICAL1("example: %s msg_platform.xml msg_deployment_suspend.xml\n",
- argv[0]);
- exit(1);
+ char *destination;
+ unsigned int i;
+ xbt_dynar_foreach(destinations, i, destination){
+ task = MSG_task_create("task", 0, 0, NULL);
+ if (destination){
+ 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;
+}
- /* Simulation setting */
- MSG_create_environment(argv[1]);
+int main(int argc, char *argv[])
+{
+ MSG_init(&argc, argv);
+ xbt_assert(argc > 1, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
- /* Application deployment */
- MSG_function_register("emigrant", emigrant);
- MSG_launch_application(argv[2]);
+ MSG_create_environment(argv[1]);
- /* Run the simulation */
- res = MSG_main();
- INFO1("Simulation time %g", MSG_get_clock());
- if (res == MSG_OK)
- res = MSG_clean();
+ TRACE_category ("migration_order");
- //ending the simulation trace
- TRACE_end();
+ MSG_process_create("emigrant", emigrant, NULL, MSG_get_host_by_name("Fafard"));
+ MSG_process_create("master", master, NULL, MSG_get_host_by_name("Tremblay"));
- if (res == MSG_OK)
- return 0;
- else
- return 1;
-} /* end_of_main */
+ MSG_main();
+ return 0;
+}
