move converted MSG process examples to the dungeon

[simgrid.git] / teshsuite / msg / process-migration / process-migration.c

diff --git a/teshsuite/msg/process-migration/process-migration.c b/teshsuite/msg/process-migration/process-migration.c
new file mode 100644 (file)
index 0000000..b9aa903
--- /dev/null
+++ b/teshsuite/msg/process-migration/process-migration.c
@@ -0,0 +1,65 @@
+/* Copyright (c) 2009-2017. 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 "simgrid/msg.h"
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(msg_process_migration, "Messages specific for this msg example");
+
+msg_bar_t barrier;
+static msg_process_t controlled_process = NULL;
+
+/* The Emigrant process will be moved from host to host. */
+static int emigrant(int argc, char* argv[])
+{
+  XBT_INFO("I'll look for a new job on another machine ('Boivin') where the grass is greener.");
+  MSG_process_migrate(MSG_process_self(), MSG_host_by_name("Boivin")); /* - First, move to another host by myself */
+
+  XBT_INFO("Yeah, found something to do");
+  msg_task_t task = MSG_task_create("job", 98095000, 0, NULL); /* - Execute some work there */
+  MSG_task_execute(task);
+  MSG_task_destroy(task);
+  MSG_process_sleep(2);
+  XBT_INFO("Moving back home after work");
+  MSG_process_migrate(MSG_process_self(), MSG_host_by_name("Jacquelin")); /* - Move back to original location */
+  MSG_process_migrate(MSG_process_self(), MSG_host_by_name("Boivin"));    /* - Go back to the other host to sleep*/
+  MSG_process_sleep(4);
+  controlled_process = MSG_process_self(); /* - Get controlled at checkpoint */
+  MSG_barrier_wait(barrier);
+  MSG_process_suspend(MSG_process_self());
+  msg_host_t h = MSG_process_get_host(MSG_process_self());
+  XBT_INFO("I've been moved on this new host: %s", MSG_host_get_name(h));
+  XBT_INFO("Uh, nothing to do here. Stopping now");
+  return 0;
+}
+
+/* The policeman check for emigrants and move them back to 'Jacquelin' */
+static int policeman(int argc, char* argv[])
+{
+  XBT_INFO("Wait at the checkpoint."); /* - block on the mutex+condition */
+  MSG_barrier_wait(barrier);
+  MSG_process_migrate(controlled_process, MSG_host_by_name("Jacquelin")); /* - Move an emigrant to Jacquelin */
+  XBT_INFO("I moved the emigrant");
+  MSG_process_resume(controlled_process);
+
+  return 0;
+}
+
+int main(int argc, char* argv[])
+{
+  MSG_init(&argc, argv);
+  xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s msg_platform.xml\n", argv[0], argv[0]);
+
+  MSG_create_environment(argv[1]); /* - Load the platform description */
+  /* - Create and deploy the emigrant and policeman processes */
+  MSG_process_create("emigrant", emigrant, NULL, MSG_get_host_by_name("Jacquelin"));
+  MSG_process_create("policeman", policeman, NULL, MSG_get_host_by_name("Boivin"));
+
+  barrier         = MSG_barrier_init(2);
+  msg_error_t res = MSG_main(); /* - Run the simulation */
+  XBT_INFO("Simulation time %g", MSG_get_clock());
+  MSG_barrier_destroy(barrier);
+
+  return res != MSG_OK;
+}