xbt_dict_cursor_t cursor = NULL;
char *name = NULL;
void *workstation = NULL;
+ char *workstation_model_name;
+ msg_config_init(); /* make sure that our configuration set is created */
surf_timer_resource_init(file);
-#ifdef ALVIN_SURF_SPECIAL
- surf_workstation_resource_init_KCCFLN05(file);
-#else
- surf_workstation_resource_init_CLM03(file);
-#endif
+
+ /* which model do you want today? */
+ xbt_cfg_get_string (_msg_cfg_set, "surf_workstation_model",
+ &workstation_model_name);
+ if (!strcmp(workstation_model_name,"KCCFLN05")) {
+ surf_workstation_resource_init_KCCFLN05(file);
+ } else if (!strcmp(workstation_model_name,"CLM03")) {
+ surf_workstation_resource_init_CLM03(file);
+ } else {
+ xbt_assert0(0,"The impossible happened (once again)");
+ }
+ _msg_init_status = 2; /* inited; don't change settings now */
xbt_dict_foreach(workstation_set, cursor, name, workstation) {
__MSG_host_create(name, workstation, NULL);
--- /dev/null
+/* $Id$ */
+
+/* msg_config.c - support for MSG user configuration */
+
+/* Copyright (c) 2005 Martin Quinson. */
+/* All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include "private.h"
+#include "xbt/sysdep.h"
+#include "xbt/error.h"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_cfg, msg,
+ "Configuration support in \ref MSG");
+
+
+int _msg_init_status = 0; /* 0: beginning of time;
+ 1: pre-inited (cfg_set created);
+ 2: inited (running) */
+xbt_cfg_t _msg_cfg_set = NULL;
+
+/* callback of the surf_workstation_model variable */
+static void _msg_cfg_cb__surf_workstation_model(const char *name, int pos) {
+ xbt_error_t errcode;
+ char *val;
+
+ xbt_assert0(_msg_init_status<2, "Cannot change the model after the initialization");
+
+ TRYFAIL(xbt_cfg_get_string (_msg_cfg_set, name, &val));
+
+ xbt_assert1(!strcmp(val, "CLM03") ||
+ !strcmp(val, "KCCFLN05"),
+ "Unknown workstation model: %s (either 'CLM03' or 'KCCFLN05'",val);
+}
+
+/* create the config set and register what should be */
+void msg_config_init(void) {
+ xbt_error_t errcode;
+
+ if (_msg_init_status)
+ return; /* Already inited, nothing to do */
+
+ _msg_init_status = 1;
+ _msg_cfg_set = xbt_cfg_new();
+
+ xbt_cfg_register (_msg_cfg_set,
+ "surf_workstation_model", xbt_cfgelm_string, 1,1,
+ &_msg_cfg_cb__surf_workstation_model,NULL);
+
+ TRYFAIL(xbt_cfg_set_string(_msg_cfg_set,"surf_workstation_model", "CLM03"));
+}
+
+/** \brief set a configuration variable
+ *
+ * Currently existing configuation variable:
+ * - surf_workstation_model (string): Model of workstation to use.
+ * Possible values (defaults to "CLM03"):
+ * - "CLM03": realistic TCP behavior + basic CPU model (see [CML03 at CCGrid03])
+ * - "KCCFLN05": simple network model (no latency) but interference
+ * between computations and communications (UNSTABLE, DONT USE)
+ *
+ * Example:
+ * MSG_config("surf_workstation_model","CLM03");
+ */
+xbt_error_t
+MSG_config(const char *name, ...) {
+ va_list pa;
+ xbt_error_t errcode;
+
+ if (!_msg_init_status) {
+ msg_config_init();
+ }
+xbt_cfg_dump("msg_cfg_set","",_msg_cfg_set);
+ va_start(pa,name);
+ errcode=xbt_cfg_set_vargs(_msg_cfg_set,name,pa);
+ va_end(pa);
+
+ return errcode;
+}
#include "xbt/swag.h"
#include "xbt/dict.h"
#include "xbt/context.h"
+#include "xbt/config.h"
/**************** datatypes **********************************/
extern MSG_Global_t msg_global;
+/************************** Configuration support ********************************/
+void msg_config_init(void); /* create the config set, call this before use! */
+extern int _msg_init_status; /* 0: beginning of time;
+ 1: pre-inited (cfg_set created);
+ 2: inited (running) */
+extern xbt_cfg_t _msg_cfg_set;
/*************************************************************/