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/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_task_execute(task);
31 MSG_process_set_data(self, NULL);
32 MSG_task_destroy(task);
35 XBT_INFO(" daemon done. See you!");
39 static int process_sleep(int /*argc*/, char** /*argv*/)
42 XBT_INFO(" I'm alive but I should sleep");
43 MSG_process_sleep(10);
45 XBT_INFO(" I'm done. See you!");
49 static int commTX(int /*argc*/, char** /*argv*/)
51 const char* mailbox = "comm";
52 XBT_INFO(" Start TX");
53 msg_task_t task = MSG_task_create("COMM", 0, 100000000, NULL);
54 MSG_task_dsend(task, mailbox, task_cleanup_handler);
55 // We should wait a bit (if not the process will end before the communication, hence an exception on the other side).
57 MSG_process_sleep(30);
59 if (e.category == host_error) {
60 XBT_INFO("The host has died ... as expected.");
62 XBT_ERROR("An unexpected exception has been raised.");
70 static int commRX(int /*argc*/, char** /*argv*/)
72 msg_task_t task = NULL;
73 const char* mailbox = "comm";
74 XBT_INFO(" Start RX");
75 msg_error_t error = MSG_task_receive(&(task), mailbox);
76 if (error == MSG_OK) {
77 XBT_INFO(" Receive message: %s", task->name);
78 MSG_task_destroy(task);
79 } else if (error == MSG_HOST_FAILURE) {
80 XBT_INFO(" Receive message: HOST_FAILURE");
81 } else if (error == MSG_TRANSFER_FAILURE) {
82 XBT_INFO(" Receive message: TRANSFER_FAILURE");
84 XBT_INFO(" Receive message: %u", static_cast<unsigned int>(error));
90 static int test_launcher(int /*argc*/, char** /*argv*/)
94 msg_host_t jupiter = MSG_host_by_name("Jupiter");
97 // Create a process running a simple task on a host and turn the host off during the execution of the process.
98 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
100 XBT_INFO(" Create a process on Jupiter");
101 argvF = xbt_new(char*, 2);
102 argvF[0] = xbt_strdup("process_daemon");
103 MSG_process_create_with_arguments("process_daemon", process_daemon, NULL, jupiter, 1, argvF);
104 MSG_process_sleep(3);
105 XBT_INFO(" Turn off Jupiter");
106 MSG_host_off(jupiter);
107 MSG_process_sleep(10);
108 XBT_INFO("Test 1 seems ok, cool !(#Processes: %d, it should be 1; #tasks: %d)", MSG_process_get_number(),
113 // Create a process that on a host that is turned off (this should not be possible)
114 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
116 XBT_INFO(" Turn off Jupiter");
117 // adsein: Jupiter is already, hence nothing should happen
118 // adsein: This can be one additional test, to check that you cannot shutdown twice a host
119 MSG_host_off(jupiter);
120 argvF = xbt_new(char*, 2);
121 argvF[0] = xbt_strdup("process_daemon");
122 MSG_process_create_with_arguments("process_daemon", process_daemon, NULL, jupiter, 1, argvF);
123 MSG_process_sleep(10);
124 XBT_INFO(" Test 2 does not crash as it should (number of Process : %d, it should be 1)", MSG_process_get_number());
125 XBT_INFO(" Ok so let's turn on/off the node to see whether the process is correctly bound to Jupiter");
126 MSG_host_on(jupiter);
127 XBT_INFO(" Turn off");
128 MSG_host_off(jupiter);
130 MSG_process_sleep(10);
131 XBT_INFO("number of Process : %d it should be 1. The daemon that has been created for test2 has been correctly "
132 "destroyed....ok at least it looks rigorous, cool ! You just have to disallow the possibility to create "
133 "a new process on a node when the node is off.)",
134 MSG_process_get_number());
138 // Create a process running sucessive sleeps on a host and turn the host off during the execution of the process.
139 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
141 MSG_host_on(jupiter);
142 argvF = xbt_new(char*, 2);
143 argvF[0] = xbt_strdup("process_sleep");
144 MSG_process_create_with_arguments("process_sleep", process_sleep, NULL, jupiter, 1, argvF);
145 MSG_process_sleep(100);
146 XBT_INFO(" Turn off");
147 MSG_host_off(jupiter);
148 XBT_INFO(" sleep for 10 seconds");
149 MSG_process_sleep(10000);
150 XBT_INFO("number of Process : %d it should be 1 (i.e. the Test one))", MSG_process_get_number());
154 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
155 XBT_INFO("Test 4 (turn off src during a communication) : Create a Process/task to make a communication between "
156 "Jupiter and Tremblay and turn off Jupiter during the communication");
157 MSG_host_on(jupiter);
158 MSG_process_sleep(10);
159 argvF = xbt_new(char*, 2);
160 argvF[0] = xbt_strdup("commRX");
161 MSG_process_create_with_arguments("commRX", commRX, NULL, MSG_host_by_name("Tremblay"), 1, argvF);
162 argvF = xbt_new(char*, 2);
163 argvF[0] = xbt_strdup("commTX");
164 MSG_process_create_with_arguments("commTX", commTX, NULL, jupiter, 1, argvF);
165 XBT_INFO(" number of processes: %d", MSG_process_get_number());
166 MSG_process_sleep(10);
167 XBT_INFO(" Turn Jupiter off");
168 MSG_host_off(jupiter);
169 XBT_INFO("Test 4 is ok. (number of Process : %d, it should be 1 or 2 if RX has not been satisfied)."
170 " An exception is raised when we turn off a node that has a process sleeping",
171 MSG_process_get_number());
175 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
176 XBT_INFO("Test 5 (turn off dest during a communication : Create a Process/task to make a communication between "
177 "Tremblay and Jupiter and turn off Jupiter during the communication");
178 MSG_host_on(jupiter);
179 MSG_process_sleep(10);
180 argvF = xbt_new(char*, 2);
181 argvF[0] = xbt_strdup("commRX");
182 MSG_process_create_with_arguments("commRX", commRX, NULL, jupiter, 1, argvF);
183 argvF = xbt_new(char*, 2);
184 argvF[0] = xbt_strdup("commTX");
185 MSG_process_create_with_arguments("commTX", commTX, NULL, MSG_host_by_name("Tremblay"), 1, argvF);
186 XBT_INFO(" number of processes: %d", MSG_process_get_number());
187 MSG_process_sleep(10);
188 XBT_INFO(" Turn Jupiter off");
189 MSG_host_off(jupiter);
190 XBT_INFO("Test 5 seems ok (number of Process: %d, it should be 2)", MSG_process_get_number());
194 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
195 XBT_INFO("Test 6: Turn on Jupiter, assign a VM on Jupiter, launch a process inside the VM, and turn off the node");
198 msg_vm_t vm0 = MSG_vm_create_core(jupiter, "vm0");
201 argvF = xbt_new(char*, 2);
202 argvF[0] = xbt_strdup("process_daemon");
203 msg_process_t daemon =
204 MSG_process_create_with_arguments("process_daemon", process_daemon, NULL, (msg_host_t)vm0, 1, argvF);
206 argvF = xbt_new(char*, 2);
207 argvF[0] = xbt_strdup("process_daemonJUPI");
208 MSG_process_create_with_arguments("process_daemonJUPI", process_daemon, NULL, jupiter, 1, argvF);
210 MSG_process_suspend(daemon);
211 MSG_vm_set_bound(vm0, 90);
212 MSG_process_resume(daemon);
214 MSG_process_sleep(10);
216 XBT_INFO(" Turn Jupiter off");
217 MSG_host_off(jupiter);
218 XBT_INFO(" Shutdown vm0");
219 MSG_vm_shutdown(vm0);
220 XBT_INFO(" Destroy vm0");
222 XBT_INFO("Test 6 is also weird: when the node Jupiter is turned off once again, the VM and its daemon are not "
223 "killed. However, the issue regarding the shutdown of hosted VMs can be seen a feature not a bug ;)");
226 XBT_INFO(" Test done. See you!");
230 int main(int argc, char* argv[])
234 MSG_init(&argc, argv);
235 xbt_assert(argc == 3, "Usage: %s platform_file test_number\n\tExample: %s msg_platform.xml 1\n", argv[0], argv[0]);
239 xbt_dynar_t s_tests = xbt_str_split(argv[2], ",");
241 tests = xbt_dynar_new(sizeof(int), NULL);
242 xbt_dynar_foreach (s_tests, iter, groups) {
243 sscanf(xbt_dynar_get_as(s_tests, iter, char*), "%d", &tmp_test);
244 xbt_dynar_set_as(tests, iter, int, tmp_test);
246 xbt_dynar_free(&s_tests);
248 MSG_create_environment(argv[1]);
250 MSG_process_set_data_cleanup(task_cleanup_handler);
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;