src/surf/surfxml_parse.c

   1 /* Copyright (c) 2006, 2007, 2008, 2009, 2010, 2011. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   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. */
   6
   7 #include "xbt/misc.h"
   8 #include "xbt/log.h"
   9 #include "xbt/str.h"
  10 #include "xbt/dict.h"
  11 #include "surf/surfxml_parse_private.h"
  12 #include "surf/surf_private.h"
  13
  14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_parse, surf,
  15                                 "Logging specific to the SURF parsing module");
  16 #undef CLEANUP
  17 int ETag_surfxml_include_state(void);
  18
  19 #include "simgrid_dtd.c"
  20
  21 /*
  22  * Helping functions
  23  */
  24 void surf_parse_error(char *msg) {
  25   xbt_die("Parse error on line %d: %s\n", surf_parse_lineno, msg);
  26 }
  27
  28 double surf_parse_get_double(const char *string) {
  29   double res;
  30   int ret = sscanf(string, "%lg", &res);
  31   if (ret != 1)
  32     surf_parse_error(bprintf("%s is not a double", string));
  33   return res;
  34 }
  35
  36 int surf_parse_get_int(const char *string) {
  37   int res;
  38   int ret = sscanf(string, "%d", &res);
  39   if (ret != 1)
  40     surf_parse_error(bprintf("%s is not an integer", string));
  41   return res;
  42 }
  43
  44
  45 /*
  46  * All the callback lists that can be overiden anywhere.
  47  * (this list should probably be reduced to the bare minimum to allow the models to work)
  48  */
  49
  50 /* make sure these symbols are defined as strong ones in this file so that the linker can resolve them */
  51 xbt_dynar_t STag_surfxml_route_cb_list = NULL;
  52 xbt_dynar_t ETag_surfxml_route_cb_list = NULL;
  53 xbt_dynar_t STag_surfxml_link_ctn_cb_list = NULL;
  54 xbt_dynar_t ETag_surfxml_link_ctn_cb_list = NULL;
  55 xbt_dynar_t STag_surfxml_process_cb_list = NULL;
  56 xbt_dynar_t ETag_surfxml_process_cb_list = NULL;
  57 xbt_dynar_t STag_surfxml_argument_cb_list = NULL;
  58 xbt_dynar_t ETag_surfxml_argument_cb_list = NULL;
  59 xbt_dynar_t STag_surfxml_prop_cb_list = NULL;
  60 xbt_dynar_t ETag_surfxml_prop_cb_list = NULL;
  61 xbt_dynar_t STag_surfxml_cluster_cb_list = NULL;
  62 xbt_dynar_t ETag_surfxml_cluster_cb_list = NULL;
  63 xbt_dynar_t STag_surfxml_peer_cb_list = NULL;
  64 xbt_dynar_t ETag_surfxml_peer_cb_list = NULL;
  65 xbt_dynar_t STag_surfxml_trace_cb_list = NULL;
  66 xbt_dynar_t ETag_surfxml_trace_cb_list = NULL;
  67 xbt_dynar_t STag_surfxml_trace_connect_cb_list = NULL;
  68 xbt_dynar_t ETag_surfxml_trace_connect_cb_list = NULL;
  69 xbt_dynar_t STag_surfxml_random_cb_list = NULL;
  70 xbt_dynar_t ETag_surfxml_random_cb_list = NULL;
  71 xbt_dynar_t STag_surfxml_ASroute_cb_list = NULL;
  72 xbt_dynar_t ETag_surfxml_ASroute_cb_list = NULL;
  73 xbt_dynar_t STag_surfxml_bypassRoute_cb_list = NULL;
  74 xbt_dynar_t ETag_surfxml_bypassRoute_cb_list = NULL;
  75 xbt_dynar_t STag_surfxml_include_cb_list = NULL;
  76 xbt_dynar_t ETag_surfxml_include_cb_list = NULL;
  77
  78 /* The default current property receiver. Setup in the corresponding opening callbacks. */
  79 xbt_dict_t current_property_set = NULL;
  80 /* dictionary of random generator data */
  81 xbt_dict_t random_data_list = NULL;
  82
  83 /* Call all the callbacks of a specific SAX event */
  84 static XBT_INLINE void surfxml_call_cb_functions(xbt_dynar_t);
  85
  86 YY_BUFFER_STATE surf_input_buffer;
  87 FILE *surf_file_to_parse = NULL;
  88
  89 static void parse_Stag_trace(void);
  90 static void parse_Etag_trace(void);
  91 static void parse_Stag_trace_connect(void);
  92
  93 static void init_randomness(void);
  94 static void add_randomness(void);
  95
  96 /*
  97  * Stuff relative to the <include> tag
  98  */
  99
 100 static xbt_dynar_t surf_input_buffer_stack = NULL;
 101 static xbt_dynar_t surf_file_to_parse_stack = NULL;
 102
 103 void STag_surfxml_include(void)
 104 {
 105   XBT_INFO("STag_surfxml_include '%s'",A_surfxml_include_file);
 106   xbt_dynar_push(surf_file_to_parse_stack, &surf_file_to_parse); //save old filename
 107
 108   surf_file_to_parse = surf_fopen(A_surfxml_include_file, "r"); // read new filename
 109   xbt_assert((surf_file_to_parse), "Unable to open \"%s\"\n",
 110               A_surfxml_include_file);
 111   xbt_dynar_push(surf_input_buffer_stack,&surf_input_buffer);
 112   surf_input_buffer = surf_parse__create_buffer(surf_file_to_parse, YY_BUF_SIZE);
 113   surf_parse_push_buffer_state(surf_input_buffer);
 114   fflush(NULL);
 115 }
 116
 117 void ETag_surfxml_include(void) {
 118 /* Nothing to do when done with reading the include tag.
 119  * Instead, the handling should be deferred until the EOF of current buffer -- see below */
 120 }
 121
 122 /** @brief When reaching EOF, check whether we are in an include tag, and behave accordingly if yes
 123  *
 124  * This function is called automatically by sedding the parser in buildtools/Cmake/MaintainerMode.cmake
 125  * Every FAIL on "Premature EOF" is preceded by a call to this function, which role is to restore the
 126  * previous buffer if we reached the EOF /of an include file/. Its return code is used to avoid the
 127  * error message in that case.
 128  *
 129  * Yeah, that's terribly hackish, but it works. A better solution should be dealed with in flexml
 130  * directly: a command line flag could instruct it to do the correct thing when #include is encountered
 131  * on a line.
 132  */
 133 int ETag_surfxml_include_state(void)
 134 {
 135   fflush(NULL);
 136   XBT_INFO("ETag_surfxml_include_state '%s'",A_surfxml_include_file);
 137   if(xbt_dynar_length(surf_input_buffer_stack)!= 0)
 138           return 1;
 139   fclose(surf_file_to_parse);
 140   xbt_dynar_pop(surf_file_to_parse_stack, &surf_file_to_parse);
 141   surf_parse_pop_buffer_state();
 142   xbt_dynar_pop(surf_input_buffer_stack,surf_input_buffer);
 143   return 0;
 144 }
 145
 146
 147 void surf_parse_init_callbacks(void)
 148 {
 149           sg_platf_init(); // FIXME: move to a proper place?
 150
 151           STag_surfxml_route_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 152           ETag_surfxml_route_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 153           STag_surfxml_link_ctn_cb_list =
 154               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 155           ETag_surfxml_link_ctn_cb_list =
 156               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 157           STag_surfxml_process_cb_list =
 158               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 159           ETag_surfxml_process_cb_list =
 160               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 161           STag_surfxml_argument_cb_list =
 162               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 163           ETag_surfxml_argument_cb_list =
 164               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 165           STag_surfxml_prop_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 166           ETag_surfxml_prop_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 167           STag_surfxml_trace_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 168           ETag_surfxml_trace_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 169           STag_surfxml_trace_connect_cb_list =
 170               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 171           ETag_surfxml_trace_connect_cb_list =
 172               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 173           STag_surfxml_random_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 174           ETag_surfxml_random_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 175           STag_surfxml_ASroute_cb_list =
 176               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 177           ETag_surfxml_ASroute_cb_list =
 178               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 179           STag_surfxml_bypassRoute_cb_list =
 180               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 181           ETag_surfxml_bypassRoute_cb_list =
 182               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 183           STag_surfxml_cluster_cb_list =
 184               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 185           ETag_surfxml_cluster_cb_list =
 186               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 187           STag_surfxml_peer_cb_list =
 188               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 189           ETag_surfxml_peer_cb_list =
 190               xbt_dynar_new(sizeof(void_f_void_t), NULL);
 191           STag_surfxml_include_cb_list =
 192                           xbt_dynar_new(sizeof(void_f_void_t), NULL);
 193           ETag_surfxml_include_cb_list =
 194                           xbt_dynar_new(sizeof(void_f_void_t), NULL);
 195 }
 196
 197 void surf_parse_reset_callbacks(void)
 198 {
 199         surf_parse_free_callbacks();
 200         surf_parse_init_callbacks();
 201 }
 202
 203 void surf_parse_free_callbacks(void)
 204 {
 205   sg_platf_exit(); // FIXME: better place?
 206
 207   xbt_dynar_free(&STag_surfxml_route_cb_list);
 208   xbt_dynar_free(&ETag_surfxml_route_cb_list);
 209   xbt_dynar_free(&STag_surfxml_link_ctn_cb_list);
 210   xbt_dynar_free(&ETag_surfxml_link_ctn_cb_list);
 211   xbt_dynar_free(&STag_surfxml_process_cb_list);
 212   xbt_dynar_free(&ETag_surfxml_process_cb_list);
 213   xbt_dynar_free(&STag_surfxml_argument_cb_list);
 214   xbt_dynar_free(&ETag_surfxml_argument_cb_list);
 215   xbt_dynar_free(&STag_surfxml_prop_cb_list);
 216   xbt_dynar_free(&ETag_surfxml_prop_cb_list);
 217   xbt_dynar_free(&STag_surfxml_trace_cb_list);
 218   xbt_dynar_free(&ETag_surfxml_trace_cb_list);
 219   xbt_dynar_free(&STag_surfxml_trace_connect_cb_list);
 220   xbt_dynar_free(&ETag_surfxml_trace_connect_cb_list);
 221   xbt_dynar_free(&STag_surfxml_random_cb_list);
 222   xbt_dynar_free(&ETag_surfxml_random_cb_list);
 223   xbt_dynar_free(&STag_surfxml_ASroute_cb_list);
 224   xbt_dynar_free(&ETag_surfxml_ASroute_cb_list);
 225   xbt_dynar_free(&STag_surfxml_bypassRoute_cb_list);
 226   xbt_dynar_free(&ETag_surfxml_bypassRoute_cb_list);
 227   xbt_dynar_free(&STag_surfxml_cluster_cb_list);
 228   xbt_dynar_free(&ETag_surfxml_cluster_cb_list);
 229   xbt_dynar_free(&STag_surfxml_peer_cb_list);
 230   xbt_dynar_free(&ETag_surfxml_peer_cb_list);
 231   xbt_dynar_free(&STag_surfxml_include_cb_list);
 232   xbt_dynar_free(&ETag_surfxml_include_cb_list);
 233 }
 234
 235 /* Stag and Etag parse functions */
 236 void ETag_surfxml_router(void)  { /* ignored -- do not add content here */ }
 237
 238 void STag_surfxml_platform(void) {
 239   _XBT_GNUC_UNUSED double version = surf_parse_get_double(A_surfxml_platform_version);
 240
 241   xbt_assert((version >= 1.0), "******* BIG FAT WARNING *********\n "
 242       "You're using an ancient XML file.\n"
 243       "Since SimGrid 3.1, units are Bytes, Flops, and seconds "
 244       "instead of MBytes, MFlops and seconds.\n"
 245
 246       "Use simgrid_update_xml to update your file automatically. "
 247       "This program is installed automatically with SimGrid, or "
 248       "available in the tools/ directory of the source archive.\n"
 249
 250       "Please check also out the SURF section of the ChangeLog for "
 251       "the 3.1 version for more information. \n"
 252
 253       "Last, do not forget to also update your values for "
 254       "the calls to MSG_task_create (if any).");
 255   xbt_assert((version >= 3.0), "******* BIG FAT WARNING *********\n "
 256       "You're using an old XML file.\n"
 257       "Use simgrid_update_xml to update your file automatically. "
 258       "This program is installed automatically with SimGrid, or "
 259       "available in the tools/ directory of the source archive.");
 260
 261   sg_platf_open();
 262 }
 263 void ETag_surfxml_platform(void){
 264   sg_platf_close();
 265 }
 266
 267 void STag_surfxml_host(void){
 268   s_sg_platf_host_cbarg_t host;
 269   memset(&host,0,sizeof(host));
 270
 271   xbt_assert(current_property_set == NULL, "Someone forgot to reset the property set to NULL in its closing tag (or XML malformed)");
 272   host.properties = current_property_set = xbt_dict_new();
 273
 274         host.id = A_surfxml_host_id;
 275         host.power_peak = get_cpu_power(A_surfxml_host_power);
 276         host.power_scale = surf_parse_get_double( A_surfxml_host_availability);
 277         host.core_amount = surf_parse_get_int(A_surfxml_host_core);
 278         host.power_trace = tmgr_trace_new(A_surfxml_host_availability_file);
 279         host.state_trace = tmgr_trace_new(A_surfxml_host_state_file);
 280         xbt_assert((A_surfxml_host_state == A_surfxml_host_state_ON) ||
 281                           (A_surfxml_host_state == A_surfxml_host_state_OFF), "Invalid state");
 282         if (A_surfxml_host_state == A_surfxml_host_state_ON)
 283                 host.initial_state = SURF_RESOURCE_ON;
 284         if (A_surfxml_host_state == A_surfxml_host_state_OFF)
 285                 host.initial_state = SURF_RESOURCE_OFF;
 286         host.coord = A_surfxml_host_coordinates;
 287
 288         sg_platf_new_host(&host);
 289 }
 290 void ETag_surfxml_host(void)    {
 291   current_property_set = NULL;
 292 }
 293
 294 void STag_surfxml_router(void){
 295   s_sg_platf_router_cbarg_t router;
 296   memset(&router, 0, sizeof(router));
 297
 298         router.id = A_surfxml_router_id;
 299         router.coord = A_surfxml_router_coordinates;
 300
 301         sg_platf_new_router(&router);
 302 }
 303
 304 void STag_surfxml_cluster(void){
 305         struct_cluster = xbt_new0(s_surf_parsing_cluster_arg_t, 1);
 306         struct_cluster->id = A_surfxml_cluster_id;
 307         struct_cluster->prefix = A_surfxml_cluster_prefix;
 308         struct_cluster->suffix = A_surfxml_cluster_suffix;
 309         struct_cluster->radical = A_surfxml_cluster_radical;
 310         struct_cluster->power= surf_parse_get_double(A_surfxml_cluster_power);
 311         struct_cluster->core_amount = surf_parse_get_int(A_surfxml_cluster_core);
 312         struct_cluster->bw =   surf_parse_get_double(A_surfxml_cluster_bw);
 313         struct_cluster->lat =  surf_parse_get_double(A_surfxml_cluster_lat);
 314         if(strcmp(A_surfxml_cluster_bb_bw,""))
 315           struct_cluster->bb_bw = surf_parse_get_double(A_surfxml_cluster_bb_bw);
 316         if(strcmp(A_surfxml_cluster_bb_lat,""))
 317           struct_cluster->bb_lat = surf_parse_get_double(A_surfxml_cluster_bb_lat);
 318         struct_cluster->router_id = A_surfxml_cluster_router_id;
 319
 320         struct_cluster->sharing_policy = AX_surfxml_cluster_sharing_policy;
 321         struct_cluster->bb_sharing_policy = AX_surfxml_cluster_bb_sharing_policy;
 322
 323         struct_cluster->availability_trace = A_surfxml_cluster_availability_file;
 324         struct_cluster->state_trace = A_surfxml_cluster_state_file;
 325
 326         surfxml_call_cb_functions(STag_surfxml_cluster_cb_list);
 327 }
 328 void ETag_surfxml_cluster(void){
 329         surfxml_call_cb_functions(ETag_surfxml_cluster_cb_list);
 330         xbt_free(struct_cluster);
 331 }
 332
 333 void STag_surfxml_peer(void){
 334   s_sg_platf_peer_cbarg_t peer;
 335   memset(&peer,0,sizeof(peer));
 336         peer.id = A_surfxml_peer_id;
 337         peer.power = surf_parse_get_double(A_surfxml_peer_power);
 338         peer.bw_in = surf_parse_get_double(A_surfxml_peer_bw_in);
 339         peer.bw_out = surf_parse_get_double(A_surfxml_peer_bw_out);
 340         peer.lat = surf_parse_get_double(A_surfxml_peer_lat);
 341         peer.coord = A_surfxml_peer_coordinates;
 342         peer.availability_trace = tmgr_trace_new(A_surfxml_peer_availability_file);
 343         peer.state_trace = tmgr_trace_new(A_surfxml_peer_state_file);
 344
 345         surfxml_call_cb_functions(STag_surfxml_peer_cb_list);
 346         sg_platf_new_peer(&peer);
 347 }
 348 void ETag_surfxml_peer(void){
 349   /* nothing to do here */
 350 }
 351 void STag_surfxml_link(void){
 352   s_sg_platf_link_cbarg_t link;
 353   memset(&link,0,sizeof(link));
 354
 355   xbt_assert(current_property_set == NULL, "Someone forgot to reset the property set to NULL in its closing tag (or XML malformed)");
 356   link.properties = current_property_set = xbt_dict_new();
 357
 358         link.id = A_surfxml_link_id;
 359         link.bandwidth = surf_parse_get_double(A_surfxml_link_bandwidth);
 360         link.bandwidth_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
 361         link.latency = surf_parse_get_double(A_surfxml_link_latency);
 362         link.latency_trace = tmgr_trace_new(A_surfxml_link_latency_file);
 363
 364         switch (A_surfxml_link_state) {
 365         case A_surfxml_link_state_ON:
 366                 link.state = SURF_RESOURCE_ON;
 367                 break;
 368         case A_surfxml_link_state_OFF:
 369                 link.state = SURF_RESOURCE_OFF;
 370                 break;
 371         default:
 372           surf_parse_error(bprintf("invalid state for link %s",link.id));
 373         }
 374         link.state_trace = tmgr_trace_new(A_surfxml_link_state_file);
 375
 376         switch (A_surfxml_link_sharing_policy) {
 377         case A_surfxml_link_sharing_policy_SHARED:
 378                 link.policy = SURF_LINK_SHARED;
 379                 break;
 380         case A_surfxml_link_sharing_policy_FATPIPE:
 381                  link.policy = SURF_LINK_FATPIPE;
 382                  break;
 383         case A_surfxml_link_sharing_policy_FULLDUPLEX:
 384                  link.policy = SURF_LINK_FULLDUPLEX;
 385                  break;
 386         default:
 387           surf_parse_error(bprintf("Invalid sharing policy in link %s",link.id));
 388         }
 389
 390         sg_platf_new_link(&link);
 391 }
 392 void ETag_surfxml_link(void){
 393   current_property_set = NULL;
 394 }
 395
 396 void STag_surfxml_route(void){
 397         surfxml_call_cb_functions(STag_surfxml_route_cb_list);
 398 }
 399 void STag_surfxml_link_ctn(void){
 400         surfxml_call_cb_functions(STag_surfxml_link_ctn_cb_list);
 401 }
 402 void STag_surfxml_process(void){
 403         surfxml_call_cb_functions(STag_surfxml_process_cb_list);
 404 }
 405 void STag_surfxml_argument(void){
 406         surfxml_call_cb_functions(STag_surfxml_argument_cb_list);
 407 }
 408 void STag_surfxml_prop(void){
 409         surfxml_call_cb_functions(STag_surfxml_prop_cb_list);
 410 }
 411 void STag_surfxml_trace(void){
 412         surfxml_call_cb_functions(STag_surfxml_trace_cb_list);
 413 }
 414 void STag_surfxml_trace_connect(void){
 415         surfxml_call_cb_functions(STag_surfxml_trace_connect_cb_list);
 416 }
 417 void STag_surfxml_AS(void){
 418   sg_platf_new_AS_open(A_surfxml_AS_id,A_surfxml_AS_routing);
 419 }
 420 void ETag_surfxml_AS(void){
 421   sg_platf_new_AS_close();
 422 }
 423 void STag_surfxml_ASroute(void){
 424         surfxml_call_cb_functions(STag_surfxml_ASroute_cb_list);
 425 }
 426 void STag_surfxml_bypassRoute(void){
 427         surfxml_call_cb_functions(STag_surfxml_bypassRoute_cb_list);
 428 }
 429 void STag_surfxml_config(void){
 430   XBT_DEBUG("START configuration name = %s",A_surfxml_config_id);
 431   xbt_assert(current_property_set == NULL, "Someone forgot to reset the property set to NULL in its closing tag (or XML malformed)");
 432   current_property_set = xbt_dict_new();
 433
 434 }
 435 void ETag_surfxml_config(void){
 436   xbt_dict_cursor_t cursor = NULL;
 437   char *key;
 438   char *elem;
 439   char *cfg;
 440   xbt_dict_foreach(current_property_set, cursor, key, elem) {
 441     cfg = bprintf("%s:%s",key,elem);
 442     if(xbt_cfg_is_default_value(_surf_cfg_set, key))
 443       xbt_cfg_set_parse(_surf_cfg_set, cfg);
 444     else
 445       XBT_INFO("The custom configuration '%s' is already defined by user!",key);
 446     free(cfg);
 447   }
 448   XBT_DEBUG("End configuration name = %s",A_surfxml_config_id);
 449   xbt_dict_free(&current_property_set);
 450 }
 451 void STag_surfxml_random(void){
 452         surfxml_call_cb_functions(STag_surfxml_random_cb_list);
 453 }
 454
 455 #define parse_method(type,name) \
 456 void type##Tag_surfxml_##name(void) \
 457 { surfxml_call_cb_functions(type##Tag_surfxml_##name##_cb_list); }
 458 parse_method(E, route);
 459 parse_method(E, link_ctn);
 460 parse_method(E, process);
 461 parse_method(E, argument);
 462 parse_method(E, prop);
 463 parse_method(E, trace);
 464 parse_method(E, trace_connect);
 465 parse_method(E, random);
 466 parse_method(E, ASroute);
 467 parse_method(E, bypassRoute);
 468
 469 /* Open and Close parse file */
 470
 471 void surf_parse_open(const char *file)
 472 {
 473   static int warned = 0;        /* warn only once */
 474   if (!file) {
 475     if (!warned) {
 476       XBT_WARN
 477           ("Bypassing the XML parser since surf_parse_open received a NULL pointer. "
 478               "If it is not what you want, go fix your code.");
 479       warned = 1;
 480     }
 481     return;
 482   }
 483
 484   if (!surf_input_buffer_stack)
 485     surf_input_buffer_stack = xbt_dynar_new(sizeof(YY_BUFFER_STATE), NULL);
 486   if (!surf_file_to_parse_stack)
 487     surf_file_to_parse_stack = xbt_dynar_new(sizeof(FILE *), NULL);
 488
 489   surf_file_to_parse = surf_fopen(file, "r");
 490   xbt_assert((surf_file_to_parse), "Unable to open \"%s\"\n", file);
 491   surf_input_buffer = surf_parse__create_buffer(surf_file_to_parse, YY_BUF_SIZE);
 492   surf_parse__switch_to_buffer(surf_input_buffer);
 493   surf_parse_lineno = 1;
 494 }
 495
 496 void surf_parse_close(void)
 497 {
 498   if (surf_input_buffer_stack)
 499     xbt_dynar_free(&surf_input_buffer_stack);
 500   if (surf_file_to_parse_stack)
 501     xbt_dynar_free(&surf_file_to_parse_stack);
 502
 503   if (surf_file_to_parse) {
 504     surf_parse__delete_buffer(surf_input_buffer);
 505     fclose(surf_file_to_parse);
 506     surf_file_to_parse = NULL; //Must be reset for Bypass
 507   }
 508 }
 509
 510 /* Call the lexer to parse the currently opened file. This pointer to function enables bypassing of the parser */
 511
 512 static int _surf_parse(void) {
 513   return surf_parse_lex();
 514 }
 515 int_f_void_t surf_parse = _surf_parse;
 516
 517
 518 /* Aux parse functions */
 519
 520 void surfxml_add_callback(xbt_dynar_t cb_list, void_f_void_t function)
 521 {
 522   xbt_dynar_push(cb_list, &function);
 523 }
 524
 525 void surfxml_del_callback(xbt_dynar_t cb_list, void_f_void_t function)
 526 {
 527   xbt_ex_t e;
 528   unsigned int it=0;
 529   void_f_void_t null_f=NULL;
 530
 531   TRY {
 532     it = xbt_dynar_search(cb_list,&function);
 533   }
 534   CATCH(e) {
 535     if (e.category == not_found_error) {
 536       xbt_ex_free(e);
 537       xbt_die("Trying to remove a callback that is not here! This should not happen");
 538     }
 539     RETHROW;
 540   }
 541
 542   xbt_dynar_replace(cb_list, it,&null_f);
 543 }
 544
 545 static XBT_INLINE void surfxml_call_cb_functions(xbt_dynar_t cb_list)
 546 {
 547   unsigned int iterator;
 548   void_f_void_t fun;
 549   xbt_dynar_foreach(cb_list, iterator, fun) {
 550     if (fun) (*fun) ();
 551   }
 552 }
 553
 554
 555 /* Prop tag functions */
 556
 557 void parse_properties(const char* prop_id, const char* prop_value)
 558 {
 559         if (!current_property_set)
 560             current_property_set = xbt_dict_new();      // Maybe, it should raise an error
 561         if(!strcmp(prop_id,"coordinates")){
 562                 if(!strcmp(prop_value,"yes") && !COORD_HOST_LEVEL)
 563                   {
 564                             XBT_INFO("Configuration change: Set '%s' to '%s'", prop_id, prop_value);
 565                                 COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
 566                                 COORD_ASR_LEVEL  = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
 567                   }
 568                 if(strcmp(A_surfxml_prop_value,"yes"))
 569                           xbt_die("Setting XML prop coordinates must be \"yes\"");
 570           }
 571         else{
 572                   xbt_dict_set(current_property_set, prop_id, xbt_strdup(prop_value), free);
 573          }
 574 }
 575
 576 /**
 577  * With XML parser
 578  */
 579 void parse_properties_XML(void)
 580 {
 581   parse_properties(A_surfxml_prop_id, A_surfxml_prop_value);
 582 }
 583
 584
 585 /* Random tag functions */
 586
 587 double get_cpu_power(const char *power)
 588 {
 589   double power_scale = 0.0;
 590   const char *p, *q;
 591   char *generator;
 592   random_data_t random = NULL;
 593   /* randomness is inserted like this: power="$rand(my_random)" */
 594   if (((p = strstr(power, "$rand(")) != NULL)
 595       && ((q = strstr(power, ")")) != NULL)) {
 596     if (p < q) {
 597       generator = xbt_malloc(q - (p + 6) + 1);
 598       memcpy(generator, p + 6, q - (p + 6));
 599       generator[q - (p + 6)] = '\0';
 600       random = xbt_dict_get_or_null(random_data_list, generator);
 601       xbt_assert(random, "Random generator %s undefined", generator);
 602       power_scale = random_generate(random);
 603     }
 604   } else {
 605     power_scale = surf_parse_get_double(power);
 606   }
 607   return power_scale;
 608 }
 609
 610 double random_min, random_max, random_mean, random_std_deviation,
 611     random_generator;
 612 char *random_id;
 613
 614 static void init_randomness(void)
 615 {
 616   random_id = A_surfxml_random_id;
 617   random_min = surf_parse_get_double(A_surfxml_random_min);
 618   random_max = surf_parse_get_double(A_surfxml_random_max);
 619   random_mean = surf_parse_get_double(A_surfxml_random_mean);
 620   random_std_deviation = surf_parse_get_double(A_surfxml_random_std_deviation);
 621   random_generator = A_surfxml_random_generator;
 622 }
 623
 624 static void add_randomness(void)
 625 {
 626   /* If needed aditional properties can be added by using the prop tag */
 627   random_data_t random =
 628       random_new(random_generator, 0, random_min, random_max, random_mean,
 629                  random_std_deviation);
 630   xbt_dict_set(random_data_list, random_id, (void *) random,
 631                &xbt_free_ref);
 632 }
 633