src/simix/smx_smurf.c

   1 #include "private.h"
   2 #include "xbt/fifo.h"
   3 #include "xbt/xbt_os_thread.h"
   4
   5 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_smurf, simix,
   6                                 "Logging specific to SIMIX (SMURF)");
   7
   8 /* Requests to handle at the end of this round of scheduling user processes */
   9 static xbt_heap_t req_todo;
  10 /* to protect the write actions in the heap */
  11 static xbt_os_mutex_t sync_req_positions;
  12
  13 void SIMIX_request_init(void)
  14 {
  15   req_todo = xbt_heap_new(5,NULL);
  16   sync_req_positions = xbt_os_mutex_init();
  17 }
  18
  19 void SIMIX_request_destroy(void)
  20 {
  21   xbt_heap_free(req_todo);
  22   xbt_os_mutex_destroy(sync_req_positions);
  23 }
  24
  25 /* FIXME: we may want to save the initialization of issuer... */
  26 XBT_INLINE smx_req_t SIMIX_req_mine() {
  27   smx_process_t issuer = SIMIX_process_self();
  28   return &issuer->request;
  29 }
  30
  31 void SIMIX_request_push()
  32 {
  33   smx_process_t issuer = SIMIX_process_self();
  34   if (issuer != simix_global->maestro_process){
  35     issuer->request.issuer = issuer;
  36
  37     if (_surf_parallel_contexts)
  38       xbt_os_mutex_acquire(sync_req_positions);
  39     xbt_heap_push(req_todo,&issuer->request,issuer->pid);
  40     DEBUG3("Pushed request %d of %s; now %d requests waiting",
  41         issuer->request.call,issuer->name,xbt_heap_size(req_todo));
  42     if (_surf_parallel_contexts)
  43       xbt_os_mutex_release(sync_req_positions);
  44
  45     DEBUG2("Yield process '%s' on request of type %d", issuer->name, issuer->request.call);
  46     SIMIX_process_yield();
  47   } else {
  48     SIMIX_request_pre(&issuer->request);
  49   }
  50 }
  51
  52 smx_req_t SIMIX_request_pop(void)
  53 {
  54   return xbt_heap_pop(req_todo);
  55 }
  56
  57 void SIMIX_request_answer(smx_req_t req)
  58 {
  59   if (req->issuer != simix_global->maestro_process){
  60     req->issuer->request.call = REQ_NO_REQ;
  61     xbt_swag_insert(req->issuer, simix_global->process_to_run);
  62   }
  63 }
  64
  65 int SIMIX_request_is_visible(smx_req_t req)
  66 {
  67   return req->call == REQ_COMM_ISEND
  68      || req->call == REQ_COMM_IRECV
  69      || req->call == REQ_COMM_WAIT
  70      || req->call == REQ_COMM_WAITANY
  71      || req->call == REQ_COMM_TEST;
  72 }
  73
  74 int SIMIX_request_is_enabled(smx_req_t req)
  75 {
  76   unsigned int index = 0;
  77   smx_action_t act;
  78
  79   switch (req->call) {
  80
  81     case REQ_COMM_WAIT:
  82       /* FIXME: check also that src and dst processes are not suspended */
  83       if (req->comm_wait.comm->comm.src_proc
  84          && req->comm_wait.comm->comm.dst_proc)
  85         return TRUE;
  86       return FALSE;
  87       break;
  88
  89     case REQ_COMM_WAITANY:
  90       xbt_dynar_foreach(req->comm_waitany.comms, index, act) {
  91         if (act->comm.src_proc && act->comm.dst_proc){
  92           return TRUE;
  93         }
  94       }
  95       return FALSE;
  96       break;
  97
  98     default:
  99       return TRUE;
 100   }
 101 }
 102
 103
 104 void SIMIX_request_pre(smx_req_t req)
 105 {
 106   switch (req->call) {
 107   case REQ_NO_REQ:
 108     xbt_die("Asked to do the noop syscall");
 109     break;
 110
 111     case REQ_HOST_GET_BY_NAME:
 112       req->host_get_by_name.result =
 113         SIMIX_host_get_by_name(req->host_get_by_name.name);
 114       SIMIX_request_answer(req);
 115       break;
 116
 117     case REQ_HOST_GET_NAME:
 118       req->host_get_name.result =       SIMIX_host_get_name(req->host_get_name.host);
 119       SIMIX_request_answer(req);
 120       break;
 121
 122     case REQ_HOST_GET_PROPERTIES:
 123       req->host_get_properties.result =
 124         SIMIX_host_get_properties(req->host_get_properties.host);
 125       SIMIX_request_answer(req);
 126       break;
 127
 128     case REQ_HOST_GET_SPEED:
 129       req->host_get_speed.result =
 130         SIMIX_host_get_speed(req->host_get_speed.host);
 131       SIMIX_request_answer(req);
 132       break;
 133
 134     case REQ_HOST_GET_AVAILABLE_SPEED:
 135       req->host_get_available_speed.result =
 136         SIMIX_host_get_available_speed(req->host_get_available_speed.host);
 137       SIMIX_request_answer(req);
 138       break;
 139
 140     case REQ_HOST_GET_STATE:
 141       req->host_get_state.result =
 142         SIMIX_host_get_state(req->host_get_state.host);
 143       SIMIX_request_answer(req);
 144       break;
 145
 146     case REQ_HOST_GET_DATA:
 147       req->host_get_data.result =       SIMIX_host_get_data(req->host_get_data.host);
 148       SIMIX_request_answer(req);
 149       break;
 150
 151     case REQ_HOST_SET_DATA:
 152       SIMIX_host_set_data(req->host_set_data.host, req->host_set_data.data);
 153       SIMIX_request_answer(req);
 154       break;
 155
 156     case REQ_HOST_EXECUTE:
 157       req->host_execute.result = SIMIX_host_execute(
 158           req->host_execute.name,
 159           req->host_execute.host,
 160           req->host_execute.computation_amount);
 161       SIMIX_request_answer(req);
 162       break;
 163
 164     case REQ_HOST_PARALLEL_EXECUTE:
 165       req->host_parallel_execute.result = SIMIX_host_parallel_execute(
 166           req->host_parallel_execute.name,
 167           req->host_parallel_execute.host_nb,
 168           req->host_parallel_execute.host_list,
 169           req->host_parallel_execute.computation_amount,
 170           req->host_parallel_execute.communication_amount,
 171           req->host_parallel_execute.amount,
 172           req->host_parallel_execute.rate);
 173       SIMIX_request_answer(req);
 174       break;
 175
 176     case REQ_HOST_EXECUTION_DESTROY:
 177       SIMIX_host_execution_destroy(req->host_execution_destroy.execution);
 178       SIMIX_request_answer(req);
 179       break;
 180
 181     case REQ_HOST_EXECUTION_CANCEL:
 182       SIMIX_host_execution_cancel(req->host_execution_cancel.execution);
 183       SIMIX_request_answer(req);
 184       break;
 185
 186     case REQ_HOST_EXECUTION_GET_REMAINS:
 187       req->host_execution_get_remains.result =
 188         SIMIX_host_execution_get_remains(req->host_execution_get_remains.execution);
 189       SIMIX_request_answer(req);
 190       break;
 191
 192     case REQ_HOST_EXECUTION_GET_STATE:
 193       req->host_execution_get_state.result =
 194         SIMIX_host_execution_get_state(req->host_execution_get_state.execution);
 195       SIMIX_request_answer(req);
 196       break;
 197
 198     case REQ_HOST_EXECUTION_SET_PRIORITY:
 199       SIMIX_host_execution_set_priority(
 200           req->host_execution_set_priority.execution,
 201           req->host_execution_set_priority.priority);
 202       SIMIX_request_answer(req);
 203       break;
 204
 205     case REQ_HOST_EXECUTION_WAIT:
 206       SIMIX_pre_host_execution_wait(req);
 207       break;
 208
 209     case REQ_PROCESS_CREATE:
 210       req->process_create.result = SIMIX_process_create(
 211           req->process_create.name,
 212           req->process_create.code,
 213           req->process_create.data,
 214           req->process_create.hostname,
 215           req->process_create.argc,
 216           req->process_create.argv,
 217           req->process_create.properties);
 218       SIMIX_request_answer(req);
 219       break;
 220
 221     case REQ_PROCESS_KILL:
 222       SIMIX_process_kill(req->process_kill.process, req->issuer);
 223       SIMIX_request_answer(req);
 224       break;
 225
 226     case REQ_PROCESS_CHANGE_HOST:
 227       SIMIX_process_change_host(
 228           req->process_change_host.process,
 229           req->process_change_host.source,
 230           req->process_change_host.dest);
 231       SIMIX_request_answer(req);
 232       break;
 233
 234     case REQ_PROCESS_SUSPEND:
 235       SIMIX_pre_process_suspend(req);
 236       break;
 237
 238     case REQ_PROCESS_RESUME:
 239       SIMIX_process_resume(req->process_resume.process, req->issuer);
 240       SIMIX_request_answer(req);
 241       break;
 242
 243     case REQ_PROCESS_COUNT:
 244       req->process_count.result = SIMIX_process_count();
 245       SIMIX_request_answer(req);
 246       break;
 247
 248     case REQ_PROCESS_GET_DATA:
 249       req->process_get_data.result =
 250         SIMIX_process_get_data(req->process_get_data.process);
 251       SIMIX_request_answer(req);
 252       break;
 253
 254     case REQ_PROCESS_SET_DATA:
 255       SIMIX_process_set_data(
 256           req->process_set_data.process,
 257           req->process_set_data.data);
 258       SIMIX_request_answer(req);
 259       break;
 260
 261     case REQ_PROCESS_GET_HOST:
 262       req->process_get_host.result = SIMIX_process_get_host(req->process_get_host.process);
 263       SIMIX_request_answer(req);
 264       break;
 265
 266     case REQ_PROCESS_GET_NAME:
 267       req->process_get_name.result = SIMIX_process_get_name(req->process_get_name.process);
 268       SIMIX_request_answer(req);
 269       break;
 270
 271     case REQ_PROCESS_IS_SUSPENDED:
 272       req->process_is_suspended.result =
 273         SIMIX_process_is_suspended(req->process_is_suspended.process);
 274       SIMIX_request_answer(req);
 275       break;
 276
 277     case REQ_PROCESS_GET_PROPERTIES:
 278       req->process_get_properties.result =
 279         SIMIX_process_get_properties(req->process_get_properties.process);
 280       SIMIX_request_answer(req);
 281       break;
 282
 283     case REQ_PROCESS_SLEEP:
 284       SIMIX_pre_process_sleep(req);
 285       break;
 286
 287     case REQ_RDV_CREATE:
 288       req->rdv_create.result = SIMIX_rdv_create(req->rdv_create.name);
 289       SIMIX_request_answer(req);
 290       break;
 291
 292     case REQ_RDV_DESTROY:
 293       SIMIX_rdv_destroy(req->rdv_destroy.rdv);
 294       SIMIX_request_answer(req);
 295       break;
 296
 297     case REQ_RDV_GEY_BY_NAME:
 298       req->rdv_get_by_name.result =
 299         SIMIX_rdv_get_by_name(req->rdv_get_by_name.name);
 300       SIMIX_request_answer(req);
 301       break;
 302
 303     case REQ_RDV_COMM_COUNT_BY_HOST:
 304       req->rdv_comm_count_by_host.result = SIMIX_rdv_comm_count_by_host(
 305           req->rdv_comm_count_by_host.rdv,
 306           req->rdv_comm_count_by_host.host);
 307       SIMIX_request_answer(req);
 308       break;
 309
 310     case REQ_RDV_GET_HEAD:
 311       req->rdv_get_head.result =        SIMIX_rdv_get_head(req->rdv_get_head.rdv);
 312       SIMIX_request_answer(req);
 313       break;
 314
 315     case REQ_COMM_ISEND:
 316       req->comm_isend.result = SIMIX_comm_isend(
 317           req->issuer,
 318           req->comm_isend.rdv,
 319           req->comm_isend.task_size,
 320           req->comm_isend.rate,
 321           req->comm_isend.src_buff,
 322           req->comm_isend.src_buff_size,
 323           req->comm_isend.match_fun,
 324           req->comm_isend.data);
 325       SIMIX_request_answer(req);
 326       break;
 327
 328     case REQ_COMM_IRECV:
 329       req->comm_irecv.result = SIMIX_comm_irecv(
 330           req->issuer,
 331           req->comm_irecv.rdv,
 332           req->comm_irecv.dst_buff,
 333           req->comm_irecv.dst_buff_size,
 334           req->comm_irecv.match_fun,
 335           req->comm_irecv.data);
 336       SIMIX_request_answer(req);
 337       break;
 338
 339     case REQ_COMM_DESTROY:
 340       SIMIX_comm_destroy(req->comm_destroy.comm);
 341       SIMIX_request_answer(req);
 342       break;
 343
 344     case REQ_COMM_CANCEL:
 345       SIMIX_comm_cancel(req->comm_cancel.comm);
 346       SIMIX_request_answer(req);
 347       break;
 348
 349     case REQ_COMM_WAITANY:
 350       SIMIX_pre_comm_waitany(req);
 351       break;
 352
 353     case REQ_COMM_WAIT:
 354       SIMIX_pre_comm_wait(req);
 355       break;
 356
 357     case REQ_COMM_TEST:
 358       SIMIX_pre_comm_test(req);
 359       break;
 360
 361     case REQ_COMM_TESTANY:
 362       SIMIX_pre_comm_testany(req);
 363       break;
 364
 365     case REQ_COMM_GET_REMAINS:
 366       req->comm_get_remains.result =
 367         SIMIX_comm_get_remains(req->comm_get_remains.comm);
 368       SIMIX_request_answer(req);
 369       break;
 370
 371     case REQ_COMM_GET_STATE:
 372       req->comm_get_state.result =
 373         SIMIX_comm_get_state(req->comm_get_state.comm);
 374       SIMIX_request_answer(req);
 375       break;
 376
 377     case REQ_COMM_GET_SRC_DATA:
 378       req->comm_get_src_data.result = SIMIX_comm_get_src_data(req->comm_get_src_data.comm);
 379       SIMIX_request_answer(req);
 380       break;
 381
 382     case REQ_COMM_GET_DST_DATA:
 383       req->comm_get_dst_data.result = SIMIX_comm_get_dst_data(req->comm_get_dst_data.comm);
 384       SIMIX_request_answer(req);
 385       break;
 386
 387     case REQ_COMM_GET_SRC_BUFF:
 388       req->comm_get_src_buff.result =
 389         SIMIX_comm_get_src_buff(req->comm_get_src_buff.comm);
 390       SIMIX_request_answer(req);
 391       break;
 392
 393     case REQ_COMM_GET_DST_BUFF:
 394       req->comm_get_dst_buff.result =
 395         SIMIX_comm_get_dst_buff(req->comm_get_dst_buff.comm);
 396       SIMIX_request_answer(req);
 397       break;
 398
 399     case REQ_COMM_GET_SRC_BUFF_SIZE:
 400       req->comm_get_src_buff_size.result =
 401         SIMIX_comm_get_src_buff_size(req->comm_get_src_buff_size.comm);
 402       SIMIX_request_answer(req);
 403       break;
 404
 405     case REQ_COMM_GET_DST_BUFF_SIZE:
 406       req->comm_get_dst_buff_size.result =
 407         SIMIX_comm_get_dst_buff_size(req->comm_get_dst_buff_size.comm);
 408       SIMIX_request_answer(req);
 409       break;
 410
 411     case REQ_COMM_GET_SRC_PROC:
 412       req->comm_get_src_proc.result =
 413         SIMIX_comm_get_src_proc(req->comm_get_src_proc.comm);
 414       SIMIX_request_answer(req);
 415       break;
 416
 417     case REQ_COMM_GET_DST_PROC:
 418       req->comm_get_dst_proc.result =
 419         SIMIX_comm_get_dst_proc(req->comm_get_dst_proc.comm);
 420       SIMIX_request_answer(req);
 421       break;
 422
 423 #ifdef HAVE_LATENCY_BOUND_TRACKING
 424     case REQ_COMM_IS_LATENCY_BOUNDED:
 425       req->comm_is_latency_bounded.result =
 426         SIMIX_comm_is_latency_bounded(req->comm_is_latency_bounded.comm);
 427       SIMIX_request_answer(req);
 428       break;
 429 #endif
 430
 431 #ifdef HAVE_TRACING
 432     case REQ_SET_CATEGORY:
 433       SIMIX_set_category(
 434           req->set_category.action,
 435           req->set_category.category);
 436       SIMIX_request_answer(req);
 437       break;
 438 #endif
 439
 440     case REQ_MUTEX_INIT:
 441       req->mutex_init.result = SIMIX_mutex_init();
 442       SIMIX_request_answer(req);
 443       break;
 444
 445     case REQ_MUTEX_DESTROY:
 446       SIMIX_mutex_destroy(req->mutex_destroy.mutex);
 447       SIMIX_request_answer(req);
 448       break;
 449
 450     case REQ_MUTEX_LOCK:
 451       SIMIX_pre_mutex_lock(req);
 452       break;
 453
 454     case REQ_MUTEX_TRYLOCK:
 455       req->mutex_trylock.result =
 456               SIMIX_mutex_trylock(req->mutex_trylock.mutex, req->issuer);
 457       SIMIX_request_answer(req);
 458       break;
 459
 460     case REQ_MUTEX_UNLOCK:
 461       SIMIX_mutex_unlock(req->mutex_unlock.mutex, req->issuer);
 462       SIMIX_request_answer(req);
 463       break;
 464
 465     case REQ_COND_INIT:
 466       req->cond_init.result = SIMIX_cond_init();
 467       SIMIX_request_answer(req);
 468       break;
 469
 470     case REQ_COND_DESTROY:
 471       SIMIX_cond_destroy(req->cond_destroy.cond);
 472       SIMIX_request_answer(req);
 473       break;
 474
 475     case REQ_COND_SIGNAL:
 476       SIMIX_cond_signal(req->cond_signal.cond);
 477       SIMIX_request_answer(req);
 478       break;
 479
 480     case REQ_COND_WAIT:
 481       SIMIX_pre_cond_wait(req);
 482       break;
 483
 484     case REQ_COND_WAIT_TIMEOUT:
 485       SIMIX_pre_cond_wait_timeout(req);
 486       break;
 487
 488     case REQ_COND_BROADCAST:
 489       SIMIX_cond_broadcast(req->cond_broadcast.cond);
 490       SIMIX_request_answer(req);
 491       break;
 492
 493     case REQ_SEM_INIT:
 494       req->sem_init.result = SIMIX_sem_init(req->sem_init.capacity);
 495       SIMIX_request_answer(req);
 496       break;
 497
 498     case REQ_SEM_DESTROY:
 499       SIMIX_sem_destroy(req->sem_destroy.sem);
 500       SIMIX_request_answer(req);
 501       break;
 502
 503     case REQ_SEM_RELEASE:
 504       SIMIX_sem_release(req->sem_release.sem);
 505       SIMIX_request_answer(req);
 506       break;
 507
 508     case REQ_SEM_WOULD_BLOCK:
 509       req->sem_would_block.result =
 510         SIMIX_sem_would_block(req->sem_would_block.sem);
 511       SIMIX_request_answer(req);
 512       break;
 513
 514     case REQ_SEM_ACQUIRE:
 515       SIMIX_pre_sem_acquire(req);
 516       break;
 517
 518     case REQ_SEM_ACQUIRE_TIMEOUT:
 519       SIMIX_pre_sem_acquire_timeout(req);
 520       break;
 521
 522     case REQ_SEM_GET_CAPACITY:
 523       req->sem_get_capacity.result =
 524         SIMIX_sem_get_capacity(req->sem_get_capacity.sem);
 525       SIMIX_request_answer(req);
 526       break;
 527   }
 528 }
 529
 530 void SIMIX_request_post(smx_action_t action)
 531 {
 532   switch (action->type) {
 533
 534     case SIMIX_ACTION_EXECUTE:
 535     case SIMIX_ACTION_PARALLEL_EXECUTE:
 536       SIMIX_post_host_execute(action);
 537       break;
 538
 539     case SIMIX_ACTION_COMMUNICATE:
 540       SIMIX_post_comm(action);
 541       break;
 542
 543     case SIMIX_ACTION_SLEEP:
 544       SIMIX_post_process_sleep(action);
 545       break;
 546
 547     case SIMIX_ACTION_SYNCHRO:
 548       SIMIX_post_synchro(action);
 549       break;
 550
 551     case SIMIX_ACTION_IO:
 552       break;
 553   }
 554 }