1 /* Copyright (c) 2010-2018. 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 "simgrid/Exception.hpp"
7 #include "simgrid/msg.h"
9 #include <stdio.h> /* sscanf */
11 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
16 static void task_cleanup_handler(void* task)
19 MSG_task_destroy(static_cast<msg_task_t>(task));
22 static int process_daemon(int /*argc*/, char** /*argv*/)
24 msg_process_t self = MSG_process_self();
25 XBT_INFO(" Start daemon on %s (%f)", MSG_host_get_name(MSG_host_self()), MSG_host_get_speed(MSG_host_self()));
27 msg_task_t task = MSG_task_create("daemon", MSG_host_get_speed(MSG_host_self()), 0, NULL);
28 MSG_process_set_data(self, task);
29 XBT_INFO(" Execute daemon");
30 msg_error_t res = MSG_task_execute(task);
31 MSG_task_destroy(task);
33 if (res == MSG_HOST_FAILURE) {
34 XBT_INFO("Host as died as expected, do nothing else");
38 XBT_INFO(" daemon done. See you!");
42 static int process_sleep(int /*argc*/, char** /*argv*/)
45 XBT_INFO(" I'm alive but I should sleep");
46 int res = MSG_process_sleep(10);
47 if (res == MSG_HOST_FAILURE) {
48 XBT_INFO("Host as died as expected, do nothing else");
52 XBT_INFO(" I'm done. See you!");
56 static int commTX(int /*argc*/, char** /*argv*/)
58 const char* mailbox = "comm";
59 XBT_INFO(" Start TX");
60 msg_task_t task = MSG_task_create("COMM", 0, 100000000, NULL);
61 MSG_task_dsend(task, mailbox, task_cleanup_handler);
62 // We should wait a bit (if not the process will end before the communication, hence an exception on the other side).
63 int res = MSG_process_sleep(30);
64 if (res == MSG_HOST_FAILURE) {
65 XBT_INFO("The host has died ... as expected.");
71 static int commRX(int /*argc*/, char** /*argv*/)
73 msg_task_t task = NULL;
74 const char* mailbox = "comm";
75 XBT_INFO(" Start RX");
76 msg_error_t error = MSG_task_receive(&(task), mailbox);
77 if (error == MSG_OK) {
78 XBT_INFO(" Receive message: %s", task->name);
79 MSG_task_destroy(task);
80 } else if (error == MSG_HOST_FAILURE) {
81 XBT_INFO(" Receive message: HOST_FAILURE");
82 } else if (error == MSG_TRANSFER_FAILURE) {
83 XBT_INFO(" Receive message: TRANSFER_FAILURE");
85 XBT_INFO(" Receive message: %u", static_cast<unsigned int>(error));
91 static int test_launcher(int /*argc*/, char** /*argv*/)
95 msg_host_t jupiter = MSG_host_by_name("Jupiter");
98 // Create a process running a simple task on a host and turn the host off during the execution of the process.
99 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
101 XBT_INFO(" Create a process on Jupiter");
102 argvF = xbt_new(char*, 2);
103 argvF[0] = xbt_strdup("process_daemon");
104 MSG_process_create_with_arguments("process_daemon", process_daemon, NULL, jupiter, 1, argvF);
105 MSG_process_sleep(3);
106 XBT_INFO(" Turn off Jupiter");
107 MSG_host_off(jupiter);
108 MSG_process_sleep(10);
109 XBT_INFO("Test 1 seems ok, cool !(#Processes: %d, it should be 1; #tasks: %d)", MSG_process_get_number(),
114 // Create a process that on a host that is turned off (this should not be possible)
115 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
117 XBT_INFO(" Turn off Jupiter");
118 // adsein: Jupiter is already, hence nothing should happen
119 // adsein: This can be one additional test, to check that you cannot shutdown twice a host
120 MSG_host_off(jupiter);
121 argvF = xbt_new(char*, 2);
122 argvF[0] = xbt_strdup("process_daemon");
123 MSG_process_create_with_arguments("process_daemon", process_daemon, NULL, jupiter, 1, argvF);
124 MSG_process_sleep(10);
125 XBT_INFO(" Test 2 does not crash as it should (number of Process : %d, it should be 1)", MSG_process_get_number());
126 XBT_INFO(" Ok so let's turn on/off the node to see whether the process is correctly bound to Jupiter");
127 MSG_host_on(jupiter);
128 XBT_INFO(" Turn off");
129 MSG_host_off(jupiter);
131 MSG_process_sleep(10);
132 XBT_INFO("number of Process : %d it should be 1. The daemon that has been created for test2 has been correctly "
133 "destroyed....ok at least it looks rigorous, cool ! You just have to disallow the possibility to create "
134 "a new process on a node when the node is off.)",
135 MSG_process_get_number());
139 // Create a process running sucessive sleeps on a host and turn the host off during the execution of the process.
140 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
142 MSG_host_on(jupiter);
143 argvF = xbt_new(char*, 2);
144 argvF[0] = xbt_strdup("process_sleep");
145 MSG_process_create_with_arguments("process_sleep", process_sleep, NULL, jupiter, 1, argvF);
146 MSG_process_sleep(100);
147 XBT_INFO(" Turn off");
148 MSG_host_off(jupiter);
149 XBT_INFO(" sleep for 10 seconds");
150 MSG_process_sleep(10000);
151 XBT_INFO("number of Process : %d it should be 1 (i.e. the Test one))", MSG_process_get_number());
155 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
156 XBT_INFO("Test 4 (turn off src during a communication) : Create a Process/task to make a communication between "
157 "Jupiter and Tremblay and turn off Jupiter during the communication");
158 MSG_host_on(jupiter);
159 MSG_process_sleep(10);
160 argvF = xbt_new(char*, 2);
161 argvF[0] = xbt_strdup("commRX");
162 MSG_process_create_with_arguments("commRX", commRX, NULL, MSG_host_by_name("Tremblay"), 1, argvF);
163 argvF = xbt_new(char*, 2);
164 argvF[0] = xbt_strdup("commTX");
165 MSG_process_create_with_arguments("commTX", commTX, NULL, jupiter, 1, argvF);
166 XBT_INFO(" number of processes: %d", MSG_process_get_number());
167 MSG_process_sleep(10);
168 XBT_INFO(" Turn Jupiter off");
169 MSG_host_off(jupiter);
170 XBT_INFO("Test 4 is ok. (number of Process : %d, it should be 1 or 2 if RX has not been satisfied)."
171 " An exception is raised when we turn off a node that has a process sleeping",
172 MSG_process_get_number());
176 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
177 XBT_INFO("Test 5 (turn off dest during a communication : Create a Process/task to make a communication between "
178 "Tremblay and Jupiter and turn off Jupiter during the communication");
179 MSG_host_on(jupiter);
180 MSG_process_sleep(10);
181 argvF = xbt_new(char*, 2);
182 argvF[0] = xbt_strdup("commRX");
183 MSG_process_create_with_arguments("commRX", commRX, NULL, jupiter, 1, argvF);
184 argvF = xbt_new(char*, 2);
185 argvF[0] = xbt_strdup("commTX");
186 MSG_process_create_with_arguments("commTX", commTX, NULL, MSG_host_by_name("Tremblay"), 1, argvF);
187 XBT_INFO(" number of processes: %d", MSG_process_get_number());
188 MSG_process_sleep(10);
189 XBT_INFO(" Turn Jupiter off");
190 MSG_host_off(jupiter);
191 XBT_INFO("Test 5 seems ok (number of Process: %d, it should be 2)", MSG_process_get_number());
195 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
196 XBT_INFO("Test 6: Turn on Jupiter, assign a VM on Jupiter, launch a process inside the VM, and turn off the node");
199 msg_vm_t vm0 = MSG_vm_create_core(jupiter, "vm0");
202 argvF = xbt_new(char*, 2);
203 argvF[0] = xbt_strdup("process_daemon");
204 msg_process_t daemon =
205 MSG_process_create_with_arguments("process_daemon", process_daemon, NULL, (msg_host_t)vm0, 1, argvF);
207 argvF = xbt_new(char*, 2);
208 argvF[0] = xbt_strdup("process_daemonJUPI");
209 MSG_process_create_with_arguments("process_daemonJUPI", process_daemon, NULL, jupiter, 1, argvF);
211 MSG_process_suspend(daemon);
212 MSG_vm_set_bound(vm0, 90);
213 MSG_process_resume(daemon);
215 MSG_process_sleep(10);
217 XBT_INFO(" Turn Jupiter off");
218 MSG_host_off(jupiter);
219 XBT_INFO(" Shutdown vm0");
220 MSG_vm_shutdown(vm0);
221 XBT_INFO(" Destroy vm0");
223 XBT_INFO("Test 6 is also weird: when the node Jupiter is turned off once again, the VM and its daemon are not "
224 "killed. However, the issue regarding the shutdown of hosted VMs can be seen a feature not a bug ;)");
227 XBT_INFO(" Test done. See you!");
231 int main(int argc, char* argv[])
235 MSG_init(&argc, argv);
236 xbt_assert(argc == 3, "Usage: %s platform_file test_number\n\tExample: %s msg_platform.xml 1\n", argv[0], argv[0]);
240 xbt_dynar_t s_tests = xbt_str_split(argv[2], ",");
242 tests = xbt_dynar_new(sizeof(int), NULL);
243 xbt_dynar_foreach (s_tests, iter, groups) {
244 sscanf(xbt_dynar_get_as(s_tests, iter, char*), "%d", &tmp_test);
245 xbt_dynar_set_as(tests, iter, int, tmp_test);
247 xbt_dynar_free(&s_tests);
249 MSG_create_environment(argv[1]);
251 MSG_process_create("test_launcher", test_launcher, NULL, MSG_get_host_by_name("Tremblay"));
255 XBT_INFO("Simulation time %g", MSG_get_clock());
256 xbt_dynar_free(&tests);
258 return res != MSG_OK;