Merge branch 'torus'

[simgrid.git] / src / simgrid / sg_config.c

diff --git a/src/simgrid/sg_config.c b/src/simgrid/sg_config.c
index ab69aec..c57b33c 100644 (file)
--- a/src/simgrid/sg_config.c
+++ b/src/simgrid/sg_config.c
@@ -55,6 +55,9 @@ static void sg_config_cmd_line(int *argc, char **argv)
 
       xbt_cfg_set_parse(_sg_cfg_set, opt);
       XBT_DEBUG("Did apply '%s' as config setting", opt);
+    } else if (!strcmp(argv[i], "--version")) {
+      printf("%s\n", SIMGRID_VERSION_STRING);
+      shall_exit = 1;
     } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
       printf
           ("Description of the configuration accepted by this simulator:\n");
@@ -71,6 +74,8 @@ static void sg_config_cmd_line(int *argc, char **argv)
 #endif
 "\n"
 "You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
+"\n"
+"You can also use --version to get SimGrid version information.\n"
 "\n"
         );
       shall_exit = 1;
@@ -106,6 +111,27 @@ static void sg_config_cmd_line(int *argc, char **argv)
     sg_cfg_exit_early();
 }
 
+/* callback of the plugin variable */
+static void _sg_cfg_cb__plugin(const char *name, int pos)
+{
+  char *val;
+
+  XBT_VERB("PLUGIN");
+  xbt_assert(_sg_cfg_init_status < 2,
+              "Cannot load a plugin after the initialization");
+
+  val = xbt_cfg_get_string(_sg_cfg_set, name);
+
+  if (!strcmp(val, "help")) {
+    model_help("plugin", surf_plugin_description);
+    sg_cfg_exit_early();
+  }
+
+  /* New Module missing */
+  int plugin_id = find_model_description(surf_plugin_description, val);
+  surf_plugin_description[plugin_id].model_init_preparse();
+}
+
 /* callback of the workstation/model variable */
 static void _sg_cfg_cb__workstation_model(const char *name, int pos)
 {
@@ -430,6 +456,21 @@ void sg_config_init(int *argc, char **argv)
 
   /* Create the configuration support */
   if (_sg_cfg_init_status == 0) { /* Only create stuff if not already inited */
+
+       /* Plugins configuration */
+
+       sprintf(description,
+               "The plugins. Possible values: ");
+             p = description;
+       while (*(++p) != '\0');
+       for (i = 0; surf_plugin_description[i].name; i++)
+         p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
+                      surf_plugin_description[i].name);
+       sprintf(p,
+               ".\n       (use 'help' as a value to see the long description of each plugin)");
+       xbt_cfg_register(&_sg_cfg_set, "plugin", description,
+                        xbt_cfgelm_string, 1, 1, &_sg_cfg_cb__plugin, NULL);
+
     sprintf(description,
             "The model to use for the CPU. Possible values: ");
     p = description;
@@ -618,12 +659,12 @@ void sg_config_init(int *argc, char **argv)
             "Context factory to use in SIMIX. Possible values: thread");
     const char *dflt_ctx_fact = "thread";
 #ifdef CONTEXT_UCONTEXT
-    strcat(description, ", ucontext");
     dflt_ctx_fact = "ucontext";
+    strcat(strcat(description, ", "), dflt_ctx_fact);
 #endif
 #ifdef HAVE_RAWCTX
-    strcat(description, ", raw");
     dflt_ctx_fact = "raw";
+    strcat(strcat(description, ", "), dflt_ctx_fact);
 #endif
     strcat(description, ".");
     xbt_cfg_register(&_sg_cfg_set, "contexts/factory", description,
@@ -635,6 +676,8 @@ void sg_config_init(int *argc, char **argv)
                      "Stack size of contexts in Kib",
                      xbt_cfgelm_int, 1, 1, _sg_cfg_cb_context_stack_size, NULL);
     xbt_cfg_setdefault_int(_sg_cfg_set, "contexts/stack_size", 128);
+    /* No, it was not set yet (the above setdefault() changed this to 1). */
+    smx_context_stack_size_was_set = 0;
 
     /* number of parallel threads for user processes */
     xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
@@ -703,7 +746,7 @@ void sg_config_init(int *argc, char **argv)
     xbt_cfg_setdefault_boolean(_sg_cfg_set, "smpi/use_shared_malloc", "yes");
 
     xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
-                     "Minimal computation time (in seconds) not discarded.",
+                     "Minimal computation time (in seconds) not discarded, or -1 for infinity.",
                      xbt_cfgelm_double, 1, 1, NULL, NULL);
     xbt_cfg_setdefault_double(_sg_cfg_set, "smpi/cpu_threshold", 1e-6);