src/surf/surfxml_parse.c

   1 /* Copyright (c) 2006, 2007, 2008, 2009, 2010. 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 #include "simgrid_dtd.c"
  18
  19 /* Initialize the parsing globals */
  20 xbt_dict_t traces_set_list = NULL;
  21 xbt_dict_t trace_connect_list_host_avail = NULL;
  22 xbt_dict_t trace_connect_list_power = NULL;
  23 xbt_dict_t trace_connect_list_link_avail = NULL;
  24 xbt_dict_t trace_connect_list_bandwidth = NULL;
  25 xbt_dict_t trace_connect_list_latency = NULL;
  26
  27 /* This buffer is used to store the original buffer before substituting it by out own buffer. Useful for the foreach tag */
  28 static xbt_dynar_t surfxml_bufferstack_stack = NULL;
  29 int surfxml_bufferstack_size = 2048;
  30
  31 static char *old_buff = NULL;
  32 static void surf_parse_error(char *msg);
  33
  34 unsigned int surfxml_buffer_stack_stack_ptr;
  35 unsigned int surfxml_buffer_stack_stack[1024];
  36
  37
  38 void surfxml_bufferstack_push(int new)
  39 {
  40   if (!new)
  41     old_buff = surfxml_bufferstack;
  42   else {
  43     xbt_dynar_push(surfxml_bufferstack_stack, &surfxml_bufferstack);
  44     surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
  45   }
  46 }
  47
  48 void surfxml_bufferstack_pop(int new)
  49 {
  50   if (!new)
  51     surfxml_bufferstack = old_buff;
  52   else {
  53     free(surfxml_bufferstack);
  54     xbt_dynar_pop(surfxml_bufferstack_stack, &surfxml_bufferstack);
  55   }
  56 }
  57
  58 /* make sure these symbols are defined as strong ones in this file so that the linked can resolve them */
  59 xbt_dynar_t STag_surfxml_platform_cb_list = NULL;
  60 xbt_dynar_t ETag_surfxml_platform_cb_list = NULL;
  61 xbt_dynar_t STag_surfxml_host_cb_list = NULL;
  62 xbt_dynar_t ETag_surfxml_host_cb_list = NULL;
  63 xbt_dynar_t STag_surfxml_router_cb_list = NULL;
  64 xbt_dynar_t ETag_surfxml_router_cb_list = NULL;
  65 xbt_dynar_t STag_surfxml_link_cb_list = NULL;
  66 xbt_dynar_t ETag_surfxml_link_cb_list = NULL;
  67 xbt_dynar_t STag_surfxml_route_cb_list = NULL;
  68 xbt_dynar_t ETag_surfxml_route_cb_list = NULL;
  69 xbt_dynar_t STag_surfxml_link_ctn_cb_list = NULL;
  70 xbt_dynar_t ETag_surfxml_link_ctn_cb_list = NULL;
  71 xbt_dynar_t STag_surfxml_process_cb_list = NULL;
  72 xbt_dynar_t ETag_surfxml_process_cb_list = NULL;
  73 xbt_dynar_t STag_surfxml_argument_cb_list = NULL;
  74 xbt_dynar_t ETag_surfxml_argument_cb_list = NULL;
  75 xbt_dynar_t STag_surfxml_prop_cb_list = NULL;
  76 xbt_dynar_t ETag_surfxml_prop_cb_list = NULL;
  77 xbt_dynar_t STag_surfxml_cluster_cb_list = NULL;
  78 xbt_dynar_t ETag_surfxml_cluster_cb_list = NULL;
  79 xbt_dynar_t STag_surfxml_trace_cb_list = NULL;
  80 xbt_dynar_t ETag_surfxml_trace_cb_list = NULL;
  81 xbt_dynar_t STag_surfxml_trace_connect_cb_list = NULL;
  82 xbt_dynar_t ETag_surfxml_trace_connect_cb_list = NULL;
  83 xbt_dynar_t STag_surfxml_random_cb_list = NULL;
  84 xbt_dynar_t ETag_surfxml_random_cb_list = NULL;
  85 xbt_dynar_t STag_surfxml_AS_cb_list = NULL;
  86 xbt_dynar_t ETag_surfxml_AS_cb_list = NULL;
  87 xbt_dynar_t STag_surfxml_ASroute_cb_list = NULL;
  88 xbt_dynar_t ETag_surfxml_ASroute_cb_list = NULL;
  89 xbt_dynar_t STag_surfxml_bypassRoute_cb_list = NULL;
  90 xbt_dynar_t ETag_surfxml_bypassRoute_cb_list = NULL;
  91 xbt_dynar_t STag_surfxml_config_cb_list = NULL;
  92 xbt_dynar_t ETag_surfxml_config_cb_list = NULL;
  93
  94 /* store the current property set for any tag */
  95 xbt_dict_t current_property_set = NULL;
  96 /* dictionary of random generator data */
  97 xbt_dict_t random_data_list = NULL;
  98
  99 static XBT_INLINE void surfxml_call_cb_functions(xbt_dynar_t);
 100
 101 YY_BUFFER_STATE surf_input_buffer;
 102 FILE *surf_file_to_parse = NULL;
 103
 104 static void surf_parse_error(char *msg);
 105
 106 static void parse_Stag_trace(void);
 107 static void parse_Etag_trace(void);
 108 static void parse_Stag_trace_connect(void);
 109
 110 static void init_randomness(void);
 111 static void add_randomness(void);
 112
 113 void surf_parse_free_callbacks(void)
 114 {
 115   xbt_dynar_free(&STag_surfxml_platform_cb_list);
 116   xbt_dynar_free(&ETag_surfxml_platform_cb_list);
 117   xbt_dynar_free(&STag_surfxml_host_cb_list);
 118   xbt_dynar_free(&ETag_surfxml_host_cb_list);
 119   xbt_dynar_free(&STag_surfxml_router_cb_list);
 120   xbt_dynar_free(&ETag_surfxml_router_cb_list);
 121   xbt_dynar_free(&STag_surfxml_link_cb_list);
 122   xbt_dynar_free(&ETag_surfxml_link_cb_list);
 123   xbt_dynar_free(&STag_surfxml_route_cb_list);
 124   xbt_dynar_free(&ETag_surfxml_route_cb_list);
 125   xbt_dynar_free(&STag_surfxml_link_ctn_cb_list);
 126   xbt_dynar_free(&ETag_surfxml_link_ctn_cb_list);
 127   xbt_dynar_free(&STag_surfxml_process_cb_list);
 128   xbt_dynar_free(&ETag_surfxml_process_cb_list);
 129   xbt_dynar_free(&STag_surfxml_argument_cb_list);
 130   xbt_dynar_free(&ETag_surfxml_argument_cb_list);
 131   xbt_dynar_free(&STag_surfxml_prop_cb_list);
 132   xbt_dynar_free(&ETag_surfxml_prop_cb_list);
 133   xbt_dynar_free(&STag_surfxml_trace_cb_list);
 134   xbt_dynar_free(&ETag_surfxml_trace_cb_list);
 135   xbt_dynar_free(&STag_surfxml_trace_connect_cb_list);
 136   xbt_dynar_free(&ETag_surfxml_trace_connect_cb_list);
 137   xbt_dynar_free(&STag_surfxml_random_cb_list);
 138   xbt_dynar_free(&ETag_surfxml_random_cb_list);
 139   xbt_dynar_free(&STag_surfxml_AS_cb_list);
 140   xbt_dynar_free(&ETag_surfxml_AS_cb_list);
 141   xbt_dynar_free(&STag_surfxml_ASroute_cb_list);
 142   xbt_dynar_free(&ETag_surfxml_ASroute_cb_list);
 143   xbt_dynar_free(&STag_surfxml_bypassRoute_cb_list);
 144   xbt_dynar_free(&ETag_surfxml_bypassRoute_cb_list);
 145   xbt_dynar_free(&STag_surfxml_cluster_cb_list);
 146   xbt_dynar_free(&ETag_surfxml_cluster_cb_list);
 147   xbt_dynar_free(&STag_surfxml_config_cb_list);
 148   xbt_dynar_free(&ETag_surfxml_config_cb_list);
 149 }
 150
 151 void surf_parse_reset_parser(void)
 152 {
 153   surf_parse_free_callbacks();
 154   STag_surfxml_platform_cb_list =
 155       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 156   ETag_surfxml_platform_cb_list =
 157       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 158   STag_surfxml_host_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 159   ETag_surfxml_host_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 160   STag_surfxml_router_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 161   ETag_surfxml_router_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 162   STag_surfxml_link_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 163   ETag_surfxml_link_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 164   STag_surfxml_route_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 165   ETag_surfxml_route_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 166   STag_surfxml_link_ctn_cb_list =
 167       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 168   ETag_surfxml_link_ctn_cb_list =
 169       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 170   STag_surfxml_process_cb_list =
 171       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 172   ETag_surfxml_process_cb_list =
 173       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 174   STag_surfxml_argument_cb_list =
 175       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 176   ETag_surfxml_argument_cb_list =
 177       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 178   STag_surfxml_prop_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 179   ETag_surfxml_prop_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 180   STag_surfxml_trace_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 181   ETag_surfxml_trace_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 182   STag_surfxml_trace_connect_cb_list =
 183       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 184   ETag_surfxml_trace_connect_cb_list =
 185       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 186   STag_surfxml_random_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 187   ETag_surfxml_random_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 188   STag_surfxml_AS_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 189   ETag_surfxml_AS_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 190   STag_surfxml_ASroute_cb_list =
 191       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 192   ETag_surfxml_ASroute_cb_list =
 193       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 194   STag_surfxml_bypassRoute_cb_list =
 195       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 196   ETag_surfxml_bypassRoute_cb_list =
 197       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 198   STag_surfxml_cluster_cb_list =
 199       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 200   ETag_surfxml_cluster_cb_list =
 201       xbt_dynar_new(sizeof(void_f_void_t), NULL);
 202   STag_surfxml_config_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 203   ETag_surfxml_config_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 204 }
 205
 206 /* Stag and Etag parse functions */
 207
 208 void STag_surfxml_platform(void)
 209 {
 210   double version = 0.0;
 211
 212   sscanf(A_surfxml_platform_version, "%lg", &version);
 213
 214   xbt_assert0((version >= 1.0), "******* BIG FAT WARNING *********\n "
 215       "You're using an ancient XML file.\n"
 216       "Since SimGrid 3.1, units are Bytes, Flops, and seconds "
 217       "instead of MBytes, MFlops and seconds.\n"
 218
 219       "Use simgrid_update_xml to update your file automatically. "
 220       "This program is installed automatically with SimGrid, or "
 221       "available in the tools/ directory of the source archive.\n"
 222
 223       "Please check also out the SURF section of the ChangeLog for "
 224       "the 3.1 version for more information. \n"
 225
 226       "Last, do not forget to also update your values for "
 227       "the calls to MSG_task_create (if any).");
 228   xbt_assert0((version >= 3.0), "******* BIG FAT WARNING *********\n "
 229       "You're using an old XML file.\n"
 230       "Use simgrid_update_xml to update your file automatically. "
 231       "This program is installed automatically with SimGrid, or "
 232       "available in the tools/ directory of the source archive.");
 233
 234   surfxml_call_cb_functions(STag_surfxml_platform_cb_list);
 235
 236 }
 237
 238 #define parse_method(type,name) \
 239 void type##Tag_surfxml_##name(void) \
 240 { surfxml_call_cb_functions(type##Tag_surfxml_##name##_cb_list); }
 241
 242 parse_method(E, platform);
 243 parse_method(S, host);
 244 parse_method(E, host);
 245 parse_method(S, router);
 246 parse_method(E, router);
 247 parse_method(S, link);
 248 parse_method(E, link);
 249 parse_method(S, route);
 250 parse_method(E, route);
 251 parse_method(S, link_ctn);
 252 parse_method(E, link_ctn);
 253 parse_method(S, process);
 254 parse_method(E, process);
 255 parse_method(S, argument);
 256 parse_method(E, argument);
 257 parse_method(S, prop);
 258 parse_method(E, prop);
 259 parse_method(S, trace);
 260 parse_method(E, trace);
 261 parse_method(S, trace_connect);
 262 parse_method(E, trace_connect);
 263 parse_method(S, random);
 264 parse_method(E, random);
 265 parse_method(S, AS);
 266 parse_method(E, AS);
 267 parse_method(S, ASroute);
 268 parse_method(E, ASroute);
 269 parse_method(S, bypassRoute);
 270 parse_method(E, bypassRoute);
 271 parse_method(S, cluster);
 272 parse_method(E, cluster);
 273 parse_method(S, config);
 274 parse_method(E, config);
 275
 276 /* Open and Close parse file */
 277
 278 void surf_parse_open(const char *file)
 279 {
 280   static int warned = 0;        /* warn only once */
 281   if (!file) {
 282     if (!warned) {
 283       WARN0
 284           ("Bypassing the XML parser since surf_parse_open received a NULL pointer. If it is not what you want, go fix your code.");
 285       warned = 1;
 286     }
 287     return;
 288   }
 289   surf_file_to_parse = surf_fopen(file, "r");
 290   xbt_assert1((surf_file_to_parse), "Unable to open \"%s\"\n", file);
 291   surf_input_buffer = surf_parse__create_buffer(surf_file_to_parse, 10);
 292   surf_parse__switch_to_buffer(surf_input_buffer);
 293   surf_parse_lineno = 1;
 294 }
 295
 296 void surf_parse_close(void)
 297 {
 298   if (surf_file_to_parse) {
 299     surf_parse__delete_buffer(surf_input_buffer);
 300     fclose(surf_file_to_parse);
 301     surf_file_to_parse = NULL; //Must be reset for Bypass
 302   }
 303 }
 304
 305 /* Parse Function */
 306
 307 static int _surf_parse(void)
 308 {
 309   return surf_parse_lex();
 310 }
 311
 312 int_f_void_t surf_parse = _surf_parse;
 313
 314 void surf_parse_error(char *msg)
 315 {
 316   fprintf(stderr, "Parse error on line %d: %s\n", surf_parse_lineno, msg);
 317   abort();
 318 }
 319
 320 void surf_parse_get_double(double *value, const char *string)
 321 {
 322   int ret = 0;
 323   ret = sscanf(string, "%lg", value);
 324   if (ret != 1)
 325     surf_parse_error(bprintf("%s is not a double", string));
 326 }
 327
 328 void surf_parse_get_int(int *value, const char *string)
 329 {
 330   int ret = 0;
 331   ret = sscanf(string, "%d", value);
 332   if (ret != 1)
 333     surf_parse_error(bprintf("%s is not an integer", string));
 334 }
 335
 336 /* Aux parse functions */
 337
 338 void surfxml_add_callback(xbt_dynar_t cb_list, void_f_void_t function)
 339 {
 340   xbt_dynar_push(cb_list, &function);
 341 }
 342
 343 void surfxml_del_callback(xbt_dynar_t * p_cb_list, void_f_void_t function)
 344 {
 345   xbt_dynar_t new_cb_list = xbt_dynar_new(sizeof(void_f_void_t), NULL);
 346   unsigned int it;
 347   void_f_void_t func;
 348   xbt_dynar_foreach(*p_cb_list, it, func) {
 349     if (func != function)
 350       xbt_dynar_push(new_cb_list, &func);
 351   }
 352   xbt_dynar_free(p_cb_list);
 353   *p_cb_list = new_cb_list;
 354 }
 355
 356 static XBT_INLINE void surfxml_call_cb_functions(xbt_dynar_t cb_list)
 357 {
 358   unsigned int iterator;
 359   void_f_void_t fun;
 360   xbt_dynar_foreach(cb_list, iterator, fun) {
 361     (*fun) ();
 362   }
 363 }
 364
 365 /* Init and free parse data */
 366
 367 static void init_data(void)
 368 {
 369   if (!surfxml_bufferstack_stack)
 370     surfxml_bufferstack_stack = xbt_dynar_new(sizeof(char *), NULL);
 371
 372   random_data_list = xbt_dict_new();
 373   traces_set_list = xbt_dict_new();
 374   trace_connect_list_host_avail = xbt_dict_new();
 375   trace_connect_list_power = xbt_dict_new();
 376   trace_connect_list_link_avail = xbt_dict_new();
 377   trace_connect_list_bandwidth = xbt_dict_new();
 378   trace_connect_list_latency = xbt_dict_new();
 379
 380   surfxml_add_callback(STag_surfxml_random_cb_list, &init_randomness);
 381   surfxml_add_callback(ETag_surfxml_random_cb_list, &add_randomness);
 382   surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties);
 383   surfxml_add_callback(STag_surfxml_trace_cb_list, &parse_Stag_trace);
 384   surfxml_add_callback(ETag_surfxml_trace_cb_list, &parse_Etag_trace);
 385   surfxml_add_callback(STag_surfxml_trace_connect_cb_list,
 386                        &parse_Stag_trace_connect);
 387 }
 388
 389 static void free_data(void)
 390 {
 391   xbt_dict_free(&trace_connect_list_host_avail);
 392   xbt_dict_free(&trace_connect_list_power);
 393   xbt_dict_free(&trace_connect_list_link_avail);
 394   xbt_dict_free(&trace_connect_list_bandwidth);
 395   xbt_dict_free(&trace_connect_list_latency);
 396   xbt_dict_free(&traces_set_list);
 397   xbt_dict_free(&random_data_list);
 398   xbt_dynar_free(&surfxml_bufferstack_stack);
 399 }
 400
 401 /* Here start parse */
 402
 403 void parse_platform_file(const char *file)
 404 {
 405   int parse_status;
 406
 407   surfxml_buffer_stack_stack_ptr = 1;
 408   surfxml_buffer_stack_stack[0] = 0;
 409
 410   surf_parse_open(file);
 411   init_data();
 412   parse_status = surf_parse();
 413   free_data();
 414   surf_parse_close();
 415   xbt_assert1(!parse_status, "Parse error in %s", file);
 416 }
 417
 418 /* Prop tag functions */
 419
 420 void parse_properties(void)
 421 {
 422   char *value = NULL;
 423   if (!current_property_set)
 424     current_property_set = xbt_dict_new();      // Maybe, it should be make a error
 425   value = xbt_strdup(A_surfxml_prop_value);
 426   xbt_dict_set(current_property_set, A_surfxml_prop_id, value, free);
 427 }
 428
 429 /* Trace management functions */
 430
 431 static double trace_periodicity = -1.0;
 432 static char *trace_file = NULL;
 433 static char *trace_id = NULL;
 434
 435 static void parse_Stag_trace(void)
 436 {
 437   trace_id = xbt_strdup(A_surfxml_trace_id);
 438   trace_file = xbt_strdup(A_surfxml_trace_file);
 439   surf_parse_get_double(&trace_periodicity, A_surfxml_trace_periodicity);
 440 }
 441
 442 static void parse_Etag_trace(void)
 443 {
 444   tmgr_trace_t trace;
 445   if (!trace_file || strcmp(trace_file, "") != 0) {
 446     trace = tmgr_trace_new(trace_file);
 447   } else {
 448     if (strcmp(surfxml_pcdata, "") == 0)
 449       trace = NULL;
 450     else
 451       trace =
 452           tmgr_trace_new_from_string(trace_id, surfxml_pcdata,
 453                                      trace_periodicity);
 454   }
 455   xbt_dict_set(traces_set_list, trace_id, (void *) trace, NULL);
 456   xbt_free(trace_file);
 457   trace_file = NULL;
 458   xbt_free(trace_id);
 459   trace_id = NULL;
 460 }
 461
 462 static void parse_Stag_trace_connect(void)
 463 {
 464   xbt_assert2(xbt_dict_get_or_null
 465               (traces_set_list, A_surfxml_trace_connect_trace),
 466               "Cannot connect trace %s to %s: trace unknown",
 467               A_surfxml_trace_connect_trace,
 468               A_surfxml_trace_connect_element);
 469
 470   switch (A_surfxml_trace_connect_kind) {
 471   case A_surfxml_trace_connect_kind_HOST_AVAIL:
 472     xbt_dict_set(trace_connect_list_host_avail,
 473                  A_surfxml_trace_connect_trace,
 474                  xbt_strdup(A_surfxml_trace_connect_element), free);
 475     break;
 476   case A_surfxml_trace_connect_kind_POWER:
 477     xbt_dict_set(trace_connect_list_power, A_surfxml_trace_connect_trace,
 478                  xbt_strdup(A_surfxml_trace_connect_element), free);
 479     break;
 480   case A_surfxml_trace_connect_kind_LINK_AVAIL:
 481     xbt_dict_set(trace_connect_list_link_avail,
 482                  A_surfxml_trace_connect_trace,
 483                  xbt_strdup(A_surfxml_trace_connect_element), free);
 484     break;
 485   case A_surfxml_trace_connect_kind_BANDWIDTH:
 486     xbt_dict_set(trace_connect_list_bandwidth,
 487                  A_surfxml_trace_connect_trace,
 488                  xbt_strdup(A_surfxml_trace_connect_element), free);
 489     break;
 490   case A_surfxml_trace_connect_kind_LATENCY:
 491     xbt_dict_set(trace_connect_list_latency, A_surfxml_trace_connect_trace,
 492                  xbt_strdup(A_surfxml_trace_connect_element), free);
 493     break;
 494   default:
 495     xbt_die(bprintf("Cannot connect trace %s to %s: kind of trace unknown",
 496                     A_surfxml_trace_connect_trace,
 497                     A_surfxml_trace_connect_element));
 498   }
 499 }
 500
 501 /* Random tag functions */
 502
 503 double get_cpu_power(const char *power)
 504 {
 505   double power_scale = 0.0;
 506   const char *p, *q;
 507   char *generator;
 508   random_data_t random = NULL;
 509   /* randomness is inserted like this: power="$rand(my_random)" */
 510   if (((p = strstr(power, "$rand(")) != NULL)
 511       && ((q = strstr(power, ")")) != NULL)) {
 512     if (p < q) {
 513       generator = xbt_malloc(q - (p + 6) + 1);
 514       memcpy(generator, p + 6, q - (p + 6));
 515       generator[q - (p + 6)] = '\0';
 516       xbt_assert1((random =
 517                    xbt_dict_get_or_null(random_data_list, generator)),
 518                   "Random generator %s undefined", generator);
 519       power_scale = random_generate(random);
 520     }
 521   } else {
 522     surf_parse_get_double(&power_scale, power);
 523   }
 524   return power_scale;
 525 }
 526
 527 double random_min, random_max, random_mean, random_std_deviation,
 528     random_generator;
 529 char *random_id;
 530
 531 static void init_randomness(void)
 532 {
 533   random_id = A_surfxml_random_id;
 534   surf_parse_get_double(&random_min, A_surfxml_random_min);
 535   surf_parse_get_double(&random_max, A_surfxml_random_max);
 536   surf_parse_get_double(&random_mean, A_surfxml_random_mean);
 537   surf_parse_get_double(&random_std_deviation,
 538                         A_surfxml_random_std_deviation);
 539   random_generator = A_surfxml_random_generator;
 540 }
 541
 542 static void add_randomness(void)
 543 {
 544   /* If needed aditional properties can be added by using the prop tag */
 545   random_data_t random =
 546       random_new(random_generator, 0, random_min, random_max, random_mean,
 547                  random_std_deviation);
 548   xbt_dict_set(random_data_list, random_id, (void *) random,
 549                &xbt_free_ref);
 550 }
 551
 552 /**
 553  * create CPU resource via CPU Model
 554  */
 555 void surf_host_create_resource(char *name, double power_peak,
 556                                double power_scale,
 557                                tmgr_trace_t power_trace, int core,
 558                                e_surf_resource_state_t state_initial,
 559                                tmgr_trace_t state_trace,
 560                                xbt_dict_t cpu_properties)
 561 {
 562   return surf_cpu_model->extension.cpu.create_resource(name, power_peak,
 563                                                        power_scale,
 564                                                        power_trace,
 565                                                        core,
 566                                                        state_initial,
 567                                                        state_trace,
 568                                                        cpu_properties);
 569 }
 570
 571 /**
 572  * create CPU resource via worsktation_ptask_L07 model
 573  */
 574
 575 void surf_wsL07_host_create_resource(char *name, double power_peak,
 576                                      double power_scale,
 577                                      tmgr_trace_t power_trace,
 578                                      e_surf_resource_state_t state_initial,
 579                                      tmgr_trace_t state_trace,
 580                                      xbt_dict_t cpu_properties)
 581 {
 582   surf_workstation_model->extension.workstation.cpu_create_resource(name,
 583                                                                     power_peak,
 584                                                                     power_scale,
 585                                                                     power_trace,
 586                                                                     state_initial,
 587                                                                     state_trace,
 588                                                                     cpu_properties);
 589 }
 590
 591 /**
 592  * create link resource via network Model
 593  */
 594 void surf_link_create_resource(char *name,
 595                                double bw_initial,
 596                                tmgr_trace_t bw_trace,
 597                                double lat_initial,
 598                                tmgr_trace_t lat_trace,
 599                                e_surf_resource_state_t
 600                                state_initial,
 601                                tmgr_trace_t state_trace,
 602                                e_surf_link_sharing_policy_t policy,
 603                                xbt_dict_t properties)
 604 {
 605   return surf_network_model->extension.network.create_resource(name,
 606                                                                bw_initial,
 607                                                                bw_trace,
 608                                                                lat_initial,
 609                                                                lat_trace,
 610                                                                state_initial,
 611                                                                state_trace,
 612                                                                policy,
 613                                                                properties);
 614 }
 615
 616 /**
 617  * create link resource via workstation_ptask_L07 model
 618  */
 619
 620 void surf_wsL07_link_create_resource(char *name,
 621                                      double bw_initial,
 622                                      tmgr_trace_t bw_trace,
 623                                      double lat_initial,
 624                                      tmgr_trace_t lat_trace,
 625                                      e_surf_resource_state_t
 626                                      state_initial,
 627                                      tmgr_trace_t state_trace,
 628                                      e_surf_link_sharing_policy_t
 629                                      policy, xbt_dict_t properties)
 630 {
 631   return surf_workstation_model->extension.workstation.
 632       link_create_resource(name, bw_initial, bw_trace, lat_initial,
 633                            lat_trace, state_initial, state_trace, policy,
 634                            properties);
 635 }
 636
 637 /**
 638  *
 639  *init new routing model component
 640  */
 641
 642 void surf_AS_new(const char *AS_id, const char *AS_mode)
 643 {
 644   routing_AS_init(AS_id, AS_mode);
 645 }
 646
 647 void surf_AS_finalize(const char *AS_id)
 648 {
 649   routing_AS_end(AS_id);
 650 }
 651
 652 /*
 653  * add host to the network element list
 654  */
 655 void surf_route_add_host(const char *host_id)
 656 {
 657   routing_add_host(host_id);
 658 }
 659
 660 /**
 661  * set route
 662  */
 663 void surf_routing_add_route(const char *src_id, const char *dst_id,
 664                             xbt_dynar_t links_id)
 665 {
 666   unsigned int i;
 667   const char *link_id;
 668   routing_set_route(src_id, dst_id);
 669   xbt_dynar_foreach(links_id, i, link_id) {
 670     routing_add_link(link_id);
 671   }
 672
 673   //store the route
 674   routing_store_route();
 675 }
 676
 677 /**
 678  * Add Traces
 679  */
 680 void surf_add_host_traces(void)
 681 {
 682   return surf_cpu_model->extension.cpu.add_traces();
 683 }
 684
 685 void surf_add_link_traces(void)
 686 {
 687   return surf_network_model->extension.network.add_traces();
 688 }
 689
 690 void surf_wsL07_add_traces(void)
 691 {
 692   return surf_workstation_model->extension.workstation.add_traces();
 693 }