XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
"Messages specific for this msg example");
+/** @addtogroup MSG_examples
+ *
+ * - <b>migration/migration.c</b> Demonstrates how to use the @ref
+ * MSG_process_migrate function to let processes change the host they
+ * run on after their start.
+ */
+
+xbt_mutex_t mutex = NULL;
+xbt_cond_t cond = NULL;
static m_process_t process_to_migrate = NULL;
/** The guy we will move from host to host. It move alone and then is moved by policeman back */
MSG_process_migrate(MSG_process_self(), MSG_get_host_by_name("Jacquelin"));
MSG_process_migrate(MSG_process_self(), MSG_get_host_by_name("Boivin"));
MSG_process_sleep(4);
+ xbt_mutex_acquire(mutex);
process_to_migrate = MSG_process_self();
+ xbt_cond_broadcast(cond);
+ xbt_mutex_release(mutex);
MSG_process_suspend(MSG_process_self());
m_host_t h = MSG_process_get_host(MSG_process_self());
XBT_INFO("I've been moved on this new host: %s", h->name);
/* This function move the emigrant on Jacquelin */
static int policeman(int argc, char *argv[])
{
+
+ xbt_mutex_acquire(mutex);
XBT_INFO("Wait a bit before migrating the emigrant.");
- while (process_to_migrate == NULL) MSG_process_sleep(1);
+ while (process_to_migrate == NULL) xbt_cond_wait(cond, mutex);
MSG_process_migrate(process_to_migrate, MSG_get_host_by_name("Jacquelin"));
XBT_INFO("I moved the emigrant");
MSG_process_resume(process_to_migrate);
+ xbt_mutex_release(mutex);
+
return 0;
} /* end_of_policeman */
MSG_launch_application(argv[2]);
/* Run the simulation */
+ mutex = xbt_mutex_init();
+ cond = xbt_cond_init();
res = MSG_main();
XBT_INFO("Simulation time %g", MSG_get_clock());
+ xbt_cond_destroy(cond);
+ xbt_mutex_destroy(mutex);
+
if (res == MSG_OK)
res = MSG_clean();