1 /* Copyright (c) 2007-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "simgrid/msg.h"
9 /** @addtogroup MSG_examples
11 * - <b>User-defined properties: properties/properties.c</b> Attaching arbitrary informations to host, processes and
12 * such, and retrieving them with @ref MSG_host_get_properties, @ref MSG_host_get_property_value,
13 * @ref MSG_process_get_properties, and @ref MSG_process_get_property_value. Also make sure to read the platform and
14 * deployment XML files to see how to declare these data.
17 XBT_LOG_NEW_DEFAULT_CATEGORY(test, "Property test");
19 static void test_host(const char*hostname)
21 msg_host_t thehost = MSG_host_by_name(hostname);
22 xbt_dict_t props = MSG_host_get_properties(thehost);
23 xbt_dict_cursor_t cursor = NULL;
25 const char *noexist = "Unknown";
29 XBT_INFO("== Print the properties of the host '%s'", hostname);
30 xbt_dict_foreach(props, cursor, key, data)
31 XBT_INFO(" Host property: '%s' -> '%s'", key, data);
33 XBT_INFO("== Try to get a host property that does not exist");
34 value = MSG_host_get_property_value(thehost, noexist);
35 xbt_assert(!value, "The key exists (it's not supposed to)");
37 XBT_INFO("== Try to get a host property that does exist");
38 value = MSG_host_get_property_value(thehost, exist);
39 xbt_assert(value, "\tProperty %s is undefined (where it should)", exist);
40 xbt_assert(!strcmp(value, "180"), "\tValue of property %s is defined to %s (where it should be 180)", exist, value);
41 XBT_INFO(" Property: %s old value: %s", exist, value);
43 XBT_INFO("== Trying to modify a host property");
44 MSG_host_set_property_value(thehost, exist, xbt_strdup("250"), xbt_free_f);
46 /* Test if we have changed the value */
47 value = MSG_host_get_property_value(thehost, exist);
48 xbt_assert(value, "Property %s is undefined (where it should)", exist);
49 xbt_assert(!strcmp(value, "250"), "Value of property %s is defined to %s (where it should be 250)", exist, value);
50 XBT_INFO(" Property: %s old value: %s", exist, value);
52 /* Restore the value for the next test */
53 MSG_host_set_property_value(thehost, exist, xbt_strdup("180"), xbt_free_f);
56 static int alice(int argc, char *argv[]) { /* Dump what we have on the current host */
61 static int carole(int argc, char *argv[]) {/* Dump what we have on a remote host */
62 MSG_process_sleep(1); // Wait for alice to be done with its experiment
67 static int david(int argc, char *argv[]) {/* Dump what we have on a remote host */
68 MSG_process_sleep(2); // Wait for alice and carole to be done with its experiment
69 test_host("node-0.acme.org");
73 static int bob(int argc, char *argv[])
75 /* Get the property list of current bob process */
76 xbt_dict_t props = MSG_process_get_properties(MSG_process_self());
77 xbt_dict_cursor_t cursor = NULL;
79 const char *noexist = "UnknownProcessProp";
80 XBT_ATTRIB_UNUSED const char *value;
82 XBT_INFO("== Print the properties of the process");
83 xbt_dict_foreach(props, cursor, key, data)
84 XBT_INFO(" Process property: %s -> %s", key, data);
86 XBT_INFO("== Try to get a process property that does not exist");
88 value = MSG_process_get_property_value(MSG_process_self(), noexist);
89 xbt_assert(!value, "The property is defined (it shouldnt)");
94 int main(int argc, char *argv[])
96 msg_error_t res = MSG_OK;
101 MSG_init(&argc, argv);
102 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
103 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
105 MSG_function_register("alice", alice);
106 MSG_function_register("bob", bob);
107 MSG_function_register("carole", carole);
108 MSG_function_register("david", david);
110 MSG_create_environment(argv[1]);
112 XBT_INFO("There are %d hosts in the environment", MSG_get_host_number());
114 hosts = MSG_hosts_as_dynar();
116 xbt_dynar_foreach(hosts, i, host){
117 XBT_INFO("Host '%s' runs at %.0f flops/s",MSG_host_get_name(host), MSG_host_get_speed(host));
120 MSG_launch_application(argv[2]);
124 xbt_dynar_free(&hosts);