3 /* msg_config.c - support for MSG user configuration */
5 /* Copyright (c) 2005 Martin Quinson. */
6 /* All rights reserved. */
8 /* This program is free software; you can redistribute it and/or modify it
9 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #include "xbt/sysdep.h"
13 #include "xbt/error.h"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_cfg, msg,
16 "Configuration support in \ref MSG");
19 int _msg_init_status = 0; /* 0: beginning of time;
20 1: pre-inited (cfg_set created);
21 2: inited (running) */
22 xbt_cfg_t _msg_cfg_set = NULL;
24 /* callback of the surf_workstation_model variable */
25 static void _msg_cfg_cb__surf_workstation_model(const char *name, int pos) {
29 xbt_assert0(_msg_init_status<2, "Cannot change the model after the initialization");
31 TRYFAIL(xbt_cfg_get_string (_msg_cfg_set, name, &val));
33 xbt_assert1(!strcmp(val, "CLM03") ||
34 !strcmp(val, "KCCFLN05"),
35 "Unknown workstation model: %s (either 'CLM03' or 'KCCFLN05'",val);
38 /* create the config set and register what should be */
39 void msg_config_init(void) {
43 return; /* Already inited, nothing to do */
46 _msg_cfg_set = xbt_cfg_new();
48 xbt_cfg_register (_msg_cfg_set,
49 "surf_workstation_model", xbt_cfgelm_string, 1,1,
50 &_msg_cfg_cb__surf_workstation_model,NULL);
52 TRYFAIL(xbt_cfg_set_string(_msg_cfg_set,"surf_workstation_model", "CLM03"));
55 /** \brief set a configuration variable
57 * Currently existing configuation variable:
58 * - surf_workstation_model (string): Model of workstation to use.
59 * Possible values (defaults to "CLM03"):
60 * - "CLM03": realistic TCP behavior + basic CPU model (see [CML03 at CCGrid03])
61 * - "KCCFLN05": simple network model (no latency) but interference
62 * between computations and communications (UNSTABLE, DONT USE)
65 * MSG_config("surf_workstation_model","CLM03");
68 MSG_config(const char *name, ...) {
72 if (!_msg_init_status) {
75 xbt_cfg_dump("msg_cfg_set","",_msg_cfg_set);
77 errcode=xbt_cfg_set_vargs(_msg_cfg_set,name,pa);