3 /* Copyright (c) 2009 The SimGrid team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 /* surf_config: configuration infrastructure for the simulation world */
10 #include "xbt/config.h"
12 #include "surf/surf_private.h"
14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config,surf,"About the configuration of surf (and the rest of the simulation)");
16 xbt_cfg_t _surf_cfg_set = NULL;
19 /* Parse the command line, looking for options */
20 static void surf_config_cmd_line(int *argc,char **argv)
25 for (i = 1; i < *argc; i++) {
27 if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
28 opt = strchr(argv[i], '=');
31 xbt_cfg_set_parse(_surf_cfg_set,opt);
32 DEBUG1("Did apply '%s' as config setting", opt);
34 } else if (!strncmp(argv[i], "--cfg-help", strlen("--cfg-help")+1) ||
35 !strncmp(argv[i], "--help", strlen("--help")+1)) {
36 printf("Description of the configuration accepted by this simulator:\n");
37 xbt_cfg_help(_surf_cfg_set);
41 if (remove_it) { /*remove this from argv */
42 for (j = i + 1; j < *argc; j++) {
43 argv[j - 1] = argv[j];
48 i--; /* compensate effect of next loop incrementation */
54 int _surf_init_status = 0; /* 0: beginning of time;
55 1: pre-inited (cfg_set created);
56 2: inited (running) */
58 /* callback of the workstation_model variable */
59 static void _surf_cfg_cb__workstation_model(const char *name, int pos)
63 xbt_assert0(_surf_init_status < 2,
64 "Cannot change the model after the initialization");
66 val = xbt_cfg_get_string(_surf_cfg_set, name);
67 /* New Module missing */
69 find_model_description(surf_workstation_model_description, val);
72 /* callback of the cpu_model variable */
73 static void _surf_cfg_cb__cpu_model(const char *name, int pos)
77 xbt_assert0(_surf_init_status < 2,
78 "Cannot change the model after the initialization");
80 val = xbt_cfg_get_string(_surf_cfg_set, name);
81 /* New Module missing */
82 find_model_description(surf_cpu_model_description, val);
85 /* callback of the workstation_model variable */
86 static void _surf_cfg_cb__network_model(const char *name, int pos)
90 xbt_assert0(_surf_init_status < 2,
91 "Cannot change the model after the initialization");
93 val = xbt_cfg_get_string(_surf_cfg_set, name);
94 /* New Module missing */
95 find_model_description(surf_network_model_description, val);
98 /* callback of the tcp gamma variable */
99 static void _surf_cfg_cb__tcp_gamma(const char *name, int pos) {
100 sg_tcp_gamma = xbt_cfg_get_double(_surf_cfg_set, name);
103 static void _surf_cfg_cb__surf_path(const char *name, int pos) {
104 char *path = xbt_cfg_get_string_at(_surf_cfg_set, name,pos);
105 xbt_dynar_push(surf_path, &path);
110 /* create the config set, register what should be and parse the command line*/
111 void surf_config_init(int *argc, char **argv) {
113 /* Create the configuration support */
114 if (_surf_init_status==0) { /* Only create stuff if not already inited */
115 _surf_init_status = 1;
117 char *description = xbt_malloc(1024), *p = description;
120 sprintf(description,"The model to use for the workstation. Possible values: ");
121 while (*(++p) != '\0');
122 for (i=0;surf_workstation_model_description[i].name;i++)
123 p+=sprintf(p,"%s%s",(i==0?"":", "),surf_workstation_model_description[i].name);
124 default_value = (char*)"CLM03";
125 xbt_cfg_register(&_surf_cfg_set,
126 "workstation_model", xbt_strdup(description), xbt_cfgelm_string, &default_value, 1, 1,
127 &_surf_cfg_cb__workstation_model, NULL);
129 sprintf(description,"The model to use for the CPU. Possible values: ");
131 while (*(++p) != '\0');
132 for (i=0;surf_cpu_model_description[i].name;i++)
133 p+=sprintf(p,"%s%s",(i==0?"":", "),surf_cpu_model_description[i].name);
134 default_value = (char*)"Cas01";
135 xbt_cfg_register(&_surf_cfg_set,
136 "cpu_model", xbt_strdup(description), xbt_cfgelm_string, &default_value, 1, 1,
137 &_surf_cfg_cb__cpu_model, NULL);
139 sprintf(description,"The model to use for the network. Possible values: ");
141 while (*(++p) != '\0');
142 for (i=0;surf_network_model_description[i].name;i++)
143 p+=sprintf(p,"%s%s",(i==0?"":", "),surf_network_model_description[i].name);
144 default_value = (char*)"CM02";
145 xbt_cfg_register(&_surf_cfg_set,
146 "network_model", description, xbt_cfgelm_string, &default_value, 1, 1,
147 &_surf_cfg_cb__network_model, NULL);
149 double default_TCP_GAMMA = 20000.0;
150 xbt_cfg_register(&_surf_cfg_set,"TCP_gamma","Size of the biggest TCP window",
151 xbt_cfgelm_double,&default_TCP_GAMMA,1,1,_surf_cfg_cb__tcp_gamma,NULL);
153 xbt_cfg_register(&_surf_cfg_set,"path","Lookup path for inclusions in platform and deployment XML files",
154 xbt_cfgelm_string, NULL,0,0,_surf_cfg_cb__surf_path,NULL);
156 /* retrieves the current directory of the current process */
157 const char *initial_path = __surf_get_initial_path();
158 xbt_assert0((initial_path),
159 "__surf_get_initial_path() failed! Can't resolves current Windows directory");
161 surf_path = xbt_dynar_new(sizeof(char *), NULL);
162 xbt_cfg_set_string(_surf_cfg_set,"path", initial_path);
165 surf_config_cmd_line(argc,argv);
168 void surf_config_finalize(void)
170 if (!_surf_init_status)
171 return; /* Not initialized yet. Nothing to do */
173 xbt_cfg_free(&_surf_cfg_set);
174 _surf_init_status = 0;
177 void surf_config_models_setup(const char *platform_file){
178 char *workstation_model_name;
179 int workstation_id = -1;
181 workstation_model_name =
182 xbt_cfg_get_string(_surf_cfg_set, "workstation_model");
184 DEBUG1("Model : %s", workstation_model_name);
186 find_model_description(surf_workstation_model_description,
187 workstation_model_name);
188 if (!strcmp(workstation_model_name, "compound")) {
190 char *network_model_name = NULL;
191 char *cpu_model_name = NULL;
196 cpu_model_name = xbt_cfg_get_string(_surf_cfg_set, "cpu_model");
198 if (e.category == bound_error) {
200 "Set a cpu model to use with the 'compound' workstation model");
208 network_model_name = xbt_cfg_get_string(_surf_cfg_set, "network_model");
211 if (e.category == bound_error) {
213 "Set a network model to use with the 'compound' workstation model");
221 find_model_description(surf_network_model_description,
224 find_model_description(surf_cpu_model_description, cpu_model_name);
226 surf_cpu_model_description[cpu_id].model_init(platform_file);
227 surf_network_model_description[network_id].model_init(platform_file);
230 DEBUG0("Call workstation_model_init");
231 surf_workstation_model_description[workstation_id].model_init(platform_file);
234 void surf_config_models_create_elms(void) {
235 char *workstation_model_name = xbt_cfg_get_string(_surf_cfg_set, "workstation_model");
237 find_model_description(surf_workstation_model_description,
238 workstation_model_name);
239 if (surf_workstation_model_description[workstation_id].create_ws != NULL)
240 surf_workstation_model_description[workstation_id].create_ws();