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 MSG_process_sleep(10);
48 XBT_INFO(" I'm done. See you!");
52 static int commTX(int /*argc*/, char** /*argv*/)
54 const char* mailbox = "comm";
55 XBT_INFO(" Start TX");
56 msg_task_t task = MSG_task_create("COMM", 0, 100000000, NULL);
57 MSG_task_dsend(task, mailbox, task_cleanup_handler);
58 // We should wait a bit (if not the process will end before the communication, hence an exception on the other side).
60 MSG_process_sleep(30);
62 if (e.category == host_error) {
63 XBT_INFO("The host has died ... as expected.");
65 XBT_ERROR("An unexpected exception has been raised.");
73 static int commRX(int /*argc*/, char** /*argv*/)
75 msg_task_t task = NULL;
76 const char* mailbox = "comm";
77 XBT_INFO(" Start RX");
78 msg_error_t error = MSG_task_receive(&(task), mailbox);
79 if (error == MSG_OK) {
80 XBT_INFO(" Receive message: %s", task->name);
81 MSG_task_destroy(task);
82 } else if (error == MSG_HOST_FAILURE) {
83 XBT_INFO(" Receive message: HOST_FAILURE");
84 } else if (error == MSG_TRANSFER_FAILURE) {
85 XBT_INFO(" Receive message: TRANSFER_FAILURE");
87 XBT_INFO(" Receive message: %u", static_cast<unsigned int>(error));
93 static int test_launcher(int /*argc*/, char** /*argv*/)
97 msg_host_t jupiter = MSG_host_by_name("Jupiter");
100 // Create a process running a simple task on a host and turn the host off during the execution of the process.
101 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
103 XBT_INFO(" Create a process on Jupiter");
104 argvF = xbt_new(char*, 2);
105 argvF[0] = xbt_strdup("process_daemon");
106 MSG_process_create_with_arguments("process_daemon", process_daemon, NULL, jupiter, 1, argvF);
107 MSG_process_sleep(3);
108 XBT_INFO(" Turn off Jupiter");
109 MSG_host_off(jupiter);
110 MSG_process_sleep(10);
111 XBT_INFO("Test 1 seems ok, cool !(#Processes: %d, it should be 1; #tasks: %d)", MSG_process_get_number(),
116 // Create a process that on a host that is turned off (this should not be possible)
117 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
119 XBT_INFO(" Turn off Jupiter");
120 // adsein: Jupiter is already, hence nothing should happen
121 // adsein: This can be one additional test, to check that you cannot shutdown twice a host
122 MSG_host_off(jupiter);
123 argvF = xbt_new(char*, 2);
124 argvF[0] = xbt_strdup("process_daemon");
125 MSG_process_create_with_arguments("process_daemon", process_daemon, NULL, jupiter, 1, argvF);
126 MSG_process_sleep(10);
127 XBT_INFO(" Test 2 does not crash as it should (number of Process : %d, it should be 1)", MSG_process_get_number());
128 XBT_INFO(" Ok so let's turn on/off the node to see whether the process is correctly bound to Jupiter");
129 MSG_host_on(jupiter);
130 XBT_INFO(" Turn off");
131 MSG_host_off(jupiter);
133 MSG_process_sleep(10);
134 XBT_INFO("number of Process : %d it should be 1. The daemon that has been created for test2 has been correctly "
135 "destroyed....ok at least it looks rigorous, cool ! You just have to disallow the possibility to create "
136 "a new process on a node when the node is off.)",
137 MSG_process_get_number());
141 // Create a process running sucessive sleeps on a host and turn the host off during the execution of the process.
142 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
144 MSG_host_on(jupiter);
145 argvF = xbt_new(char*, 2);
146 argvF[0] = xbt_strdup("process_sleep");
147 MSG_process_create_with_arguments("process_sleep", process_sleep, NULL, jupiter, 1, argvF);
148 MSG_process_sleep(100);
149 XBT_INFO(" Turn off");
150 MSG_host_off(jupiter);
151 XBT_INFO(" sleep for 10 seconds");
152 MSG_process_sleep(10000);
153 XBT_INFO("number of Process : %d it should be 1 (i.e. the Test one))", MSG_process_get_number());
157 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
158 XBT_INFO("Test 4 (turn off src during a communication) : Create a Process/task to make a communication between "
159 "Jupiter and Tremblay and turn off Jupiter during the communication");
160 MSG_host_on(jupiter);
161 MSG_process_sleep(10);
162 argvF = xbt_new(char*, 2);
163 argvF[0] = xbt_strdup("commRX");
164 MSG_process_create_with_arguments("commRX", commRX, NULL, MSG_host_by_name("Tremblay"), 1, argvF);
165 argvF = xbt_new(char*, 2);
166 argvF[0] = xbt_strdup("commTX");
167 MSG_process_create_with_arguments("commTX", commTX, NULL, jupiter, 1, argvF);
168 XBT_INFO(" number of processes: %d", MSG_process_get_number());
169 MSG_process_sleep(10);
170 XBT_INFO(" Turn Jupiter off");
171 MSG_host_off(jupiter);
172 XBT_INFO("Test 4 is ok. (number of Process : %d, it should be 1 or 2 if RX has not been satisfied)."
173 " An exception is raised when we turn off a node that has a process sleeping",
174 MSG_process_get_number());
178 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
179 XBT_INFO("Test 5 (turn off dest during a communication : Create a Process/task to make a communication between "
180 "Tremblay and Jupiter and turn off Jupiter during the communication");
181 MSG_host_on(jupiter);
182 MSG_process_sleep(10);
183 argvF = xbt_new(char*, 2);
184 argvF[0] = xbt_strdup("commRX");
185 MSG_process_create_with_arguments("commRX", commRX, NULL, jupiter, 1, argvF);
186 argvF = xbt_new(char*, 2);
187 argvF[0] = xbt_strdup("commTX");
188 MSG_process_create_with_arguments("commTX", commTX, NULL, MSG_host_by_name("Tremblay"), 1, argvF);
189 XBT_INFO(" number of processes: %d", MSG_process_get_number());
190 MSG_process_sleep(10);
191 XBT_INFO(" Turn Jupiter off");
192 MSG_host_off(jupiter);
193 XBT_INFO("Test 5 seems ok (number of Process: %d, it should be 2)", MSG_process_get_number());
197 if (xbt_dynar_search_or_negative(tests, &test) != -1) {
198 XBT_INFO("Test 6: Turn on Jupiter, assign a VM on Jupiter, launch a process inside the VM, and turn off the node");
201 msg_vm_t vm0 = MSG_vm_create_core(jupiter, "vm0");
204 argvF = xbt_new(char*, 2);
205 argvF[0] = xbt_strdup("process_daemon");
206 msg_process_t daemon =
207 MSG_process_create_with_arguments("process_daemon", process_daemon, NULL, (msg_host_t)vm0, 1, argvF);
209 argvF = xbt_new(char*, 2);
210 argvF[0] = xbt_strdup("process_daemonJUPI");
211 MSG_process_create_with_arguments("process_daemonJUPI", process_daemon, NULL, jupiter, 1, argvF);
213 MSG_process_suspend(daemon);
214 MSG_vm_set_bound(vm0, 90);
215 MSG_process_resume(daemon);
217 MSG_process_sleep(10);
219 XBT_INFO(" Turn Jupiter off");
220 MSG_host_off(jupiter);
221 XBT_INFO(" Shutdown vm0");
222 MSG_vm_shutdown(vm0);
223 XBT_INFO(" Destroy vm0");
225 XBT_INFO("Test 6 is also weird: when the node Jupiter is turned off once again, the VM and its daemon are not "
226 "killed. However, the issue regarding the shutdown of hosted VMs can be seen a feature not a bug ;)");
229 XBT_INFO(" Test done. See you!");
233 int main(int argc, char* argv[])
237 MSG_init(&argc, argv);
238 xbt_assert(argc == 3, "Usage: %s platform_file test_number\n\tExample: %s msg_platform.xml 1\n", argv[0], argv[0]);
242 xbt_dynar_t s_tests = xbt_str_split(argv[2], ",");
244 tests = xbt_dynar_new(sizeof(int), NULL);
245 xbt_dynar_foreach (s_tests, iter, groups) {
246 sscanf(xbt_dynar_get_as(s_tests, iter, char*), "%d", &tmp_test);
247 xbt_dynar_set_as(tests, iter, int, tmp_test);
249 xbt_dynar_free(&s_tests);
251 MSG_create_environment(argv[1]);
253 MSG_process_create("test_launcher", test_launcher, NULL, MSG_get_host_by_name("Tremblay"));
257 XBT_INFO("Simulation time %g", MSG_get_clock());
258 xbt_dynar_free(&tests);
260 return res != MSG_OK;