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 (smx_parallel_contexts)
  38       xbt_os_mutex_acquire(sync_req_positions);
  39     xbt_heap_push(req_todo,&issuer->request,issuer->pid);
  40     DEBUG4("Pushed request %s (%d) of %s; now %d requests waiting",
  41         SIMIX_request_name(issuer->request.call), issuer->request.call,
  42         issuer->name,xbt_heap_size(req_todo));
  43     if (smx_parallel_contexts)
  44       xbt_os_mutex_release(sync_req_positions);
  45
  46     DEBUG3("Yield process '%s' on request of type %s (%d)", issuer->name,
  47         SIMIX_request_name(issuer->request.call), issuer->request.call);
  48     SIMIX_process_yield();
  49   } else {
  50     SIMIX_request_pre(&issuer->request, 0);
  51   }
  52 }
  53
  54 smx_req_t SIMIX_request_pop(void)
  55 {
  56   smx_req_t req = xbt_heap_pop(req_todo);
  57   if(req)
  58     DEBUG4("Popped request %s (%d) of %s; now %d requests waiting",
  59         SIMIX_request_name(req->issuer->request.call),
  60         req->issuer->request.call,
  61         req->issuer->name,xbt_heap_size(req_todo));
  62   return req;
  63 }
  64
  65 void SIMIX_request_answer(smx_req_t req)
  66 {
  67   if (req->issuer != simix_global->maestro_process){
  68     DEBUG2("Answer request %s (%d)", SIMIX_request_name(req->call), req->call);
  69     req->issuer->request.call = REQ_NO_REQ;
  70     xbt_dynar_push_as(simix_global->process_to_run, smx_process_t, req->issuer);
  71   }
  72 }
  73
  74 int SIMIX_request_is_visible(smx_req_t req)
  75 {
  76   return req->call == REQ_COMM_ISEND
  77      || req->call == REQ_COMM_IRECV
  78      || req->call == REQ_COMM_WAIT
  79      || req->call == REQ_COMM_WAITANY
  80      || req->call == REQ_COMM_TEST
  81      || req->call == REQ_COMM_TESTANY;
  82 }
  83
  84 int SIMIX_request_is_enabled(smx_req_t req)
  85 {
  86   unsigned int index = 0;
  87   smx_action_t act;
  88
  89   switch (req->call) {
  90
  91     case REQ_COMM_WAIT:
  92       /* FIXME: check also that src and dst processes are not suspended */
  93       act = req->comm_wait.comm;
  94       return (act->comm.src_proc && act->comm.dst_proc);
  95       break;
  96
  97     case REQ_COMM_WAITANY:
  98       xbt_dynar_foreach(req->comm_waitany.comms, index, act) {
  99         if (act->comm.src_proc && act->comm.dst_proc){
 100           return TRUE;
 101         }
 102       }
 103       return FALSE;
 104       break;
 105
 106     default:
 107       return TRUE;
 108   }
 109 }
 110
 111 int SIMIX_request_is_enabled_by_idx(smx_req_t req, unsigned int idx)
 112 {
 113   smx_action_t act;
 114
 115   switch (req->call) {
 116
 117     case REQ_COMM_WAIT:
 118       /* FIXME: check also that src and dst processes are not suspended */
 119       act = req->comm_wait.comm;
 120       return (act->comm.src_proc && act->comm.dst_proc);
 121       break;
 122
 123     case REQ_COMM_WAITANY:
 124       act = xbt_dynar_get_as(req->comm_waitany.comms, idx, smx_action_t);
 125       return (act->comm.src_proc && act->comm.dst_proc);
 126       break;
 127
 128     default:
 129       return TRUE;
 130   }
 131 }
 132
 133 void SIMIX_request_pre(smx_req_t req, unsigned int value)
 134 {
 135   switch (req->call) {
 136   case REQ_NO_REQ:
 137     THROW2(arg_error,0,"Asked to do the noop syscall on %s@%s",
 138         SIMIX_process_get_name(req->issuer),
 139         SIMIX_host_get_name(SIMIX_process_get_host(req->issuer))
 140         );
 141     break;
 142
 143     case REQ_HOST_GET_BY_NAME:
 144       req->host_get_by_name.result =
 145         SIMIX_host_get_by_name(req->host_get_by_name.name);
 146       SIMIX_request_answer(req);
 147       break;
 148
 149     case REQ_HOST_GET_NAME:
 150       req->host_get_name.result =       SIMIX_host_get_name(req->host_get_name.host);
 151       SIMIX_request_answer(req);
 152       break;
 153
 154     case REQ_HOST_GET_PROPERTIES:
 155       req->host_get_properties.result =
 156         SIMIX_host_get_properties(req->host_get_properties.host);
 157       SIMIX_request_answer(req);
 158       break;
 159
 160     case REQ_HOST_GET_SPEED:
 161       req->host_get_speed.result =
 162         SIMIX_host_get_speed(req->host_get_speed.host);
 163       SIMIX_request_answer(req);
 164       break;
 165
 166     case REQ_HOST_GET_AVAILABLE_SPEED:
 167       req->host_get_available_speed.result =
 168         SIMIX_host_get_available_speed(req->host_get_available_speed.host);
 169       SIMIX_request_answer(req);
 170       break;
 171
 172     case REQ_HOST_GET_STATE:
 173       req->host_get_state.result =
 174         SIMIX_host_get_state(req->host_get_state.host);
 175       SIMIX_request_answer(req);
 176       break;
 177
 178     case REQ_HOST_GET_DATA:
 179       req->host_get_data.result =       SIMIX_host_get_data(req->host_get_data.host);
 180       SIMIX_request_answer(req);
 181       break;
 182
 183     case REQ_HOST_SET_DATA:
 184       SIMIX_host_set_data(req->host_set_data.host, req->host_set_data.data);
 185       SIMIX_request_answer(req);
 186       break;
 187
 188     case REQ_HOST_EXECUTE:
 189       req->host_execute.result = SIMIX_host_execute(
 190           req->host_execute.name,
 191           req->host_execute.host,
 192           req->host_execute.computation_amount);
 193       SIMIX_request_answer(req);
 194       break;
 195
 196     case REQ_HOST_PARALLEL_EXECUTE:
 197       req->host_parallel_execute.result = SIMIX_host_parallel_execute(
 198           req->host_parallel_execute.name,
 199           req->host_parallel_execute.host_nb,
 200           req->host_parallel_execute.host_list,
 201           req->host_parallel_execute.computation_amount,
 202           req->host_parallel_execute.communication_amount,
 203           req->host_parallel_execute.amount,
 204           req->host_parallel_execute.rate);
 205       SIMIX_request_answer(req);
 206       break;
 207
 208     case REQ_HOST_EXECUTION_DESTROY:
 209       SIMIX_host_execution_destroy(req->host_execution_destroy.execution);
 210       SIMIX_request_answer(req);
 211       break;
 212
 213     case REQ_HOST_EXECUTION_CANCEL:
 214       SIMIX_host_execution_cancel(req->host_execution_cancel.execution);
 215       SIMIX_request_answer(req);
 216       break;
 217
 218     case REQ_HOST_EXECUTION_GET_REMAINS:
 219       req->host_execution_get_remains.result =
 220         SIMIX_host_execution_get_remains(req->host_execution_get_remains.execution);
 221       SIMIX_request_answer(req);
 222       break;
 223
 224     case REQ_HOST_EXECUTION_GET_STATE:
 225       req->host_execution_get_state.result =
 226         SIMIX_host_execution_get_state(req->host_execution_get_state.execution);
 227       SIMIX_request_answer(req);
 228       break;
 229
 230     case REQ_HOST_EXECUTION_SET_PRIORITY:
 231       SIMIX_host_execution_set_priority(
 232           req->host_execution_set_priority.execution,
 233           req->host_execution_set_priority.priority);
 234       SIMIX_request_answer(req);
 235       break;
 236
 237     case REQ_HOST_EXECUTION_WAIT:
 238       SIMIX_pre_host_execution_wait(req);
 239       break;
 240
 241     case REQ_PROCESS_CREATE:
 242       req->process_create.result = SIMIX_process_create(
 243           req->process_create.name,
 244           req->process_create.code,
 245           req->process_create.data,
 246           req->process_create.hostname,
 247           req->process_create.argc,
 248           req->process_create.argv,
 249           req->process_create.properties);
 250       SIMIX_request_answer(req);
 251       break;
 252
 253     case REQ_PROCESS_KILL:
 254       SIMIX_process_kill(req->process_kill.process, req->issuer);
 255       SIMIX_request_answer(req);
 256       break;
 257
 258     case REQ_PROCESS_CHANGE_HOST:
 259       SIMIX_process_change_host(
 260           req->process_change_host.process,
 261           req->process_change_host.source,
 262           req->process_change_host.dest);
 263       SIMIX_request_answer(req);
 264       break;
 265
 266     case REQ_PROCESS_SUSPEND:
 267       SIMIX_pre_process_suspend(req);
 268       break;
 269
 270     case REQ_PROCESS_RESUME:
 271       SIMIX_process_resume(req->process_resume.process, req->issuer);
 272       SIMIX_request_answer(req);
 273       break;
 274
 275     case REQ_PROCESS_COUNT:
 276       req->process_count.result = SIMIX_process_count();
 277       SIMIX_request_answer(req);
 278       break;
 279
 280     case REQ_PROCESS_GET_DATA:
 281       req->process_get_data.result =
 282         SIMIX_process_get_data(req->process_get_data.process);
 283       SIMIX_request_answer(req);
 284       break;
 285
 286     case REQ_PROCESS_SET_DATA:
 287       SIMIX_process_set_data(
 288           req->process_set_data.process,
 289           req->process_set_data.data);
 290       SIMIX_request_answer(req);
 291       break;
 292
 293     case REQ_PROCESS_GET_HOST:
 294       req->process_get_host.result = SIMIX_process_get_host(req->process_get_host.process);
 295       SIMIX_request_answer(req);
 296       break;
 297
 298     case REQ_PROCESS_GET_NAME:
 299       req->process_get_name.result = SIMIX_process_get_name(req->process_get_name.process);
 300       SIMIX_request_answer(req);
 301       break;
 302
 303     case REQ_PROCESS_IS_SUSPENDED:
 304       req->process_is_suspended.result =
 305         SIMIX_process_is_suspended(req->process_is_suspended.process);
 306       SIMIX_request_answer(req);
 307       break;
 308
 309     case REQ_PROCESS_GET_PROPERTIES:
 310       req->process_get_properties.result =
 311         SIMIX_process_get_properties(req->process_get_properties.process);
 312       SIMIX_request_answer(req);
 313       break;
 314
 315     case REQ_PROCESS_SLEEP:
 316       SIMIX_pre_process_sleep(req);
 317       break;
 318
 319     case REQ_RDV_CREATE:
 320       req->rdv_create.result = SIMIX_rdv_create(req->rdv_create.name);
 321       SIMIX_request_answer(req);
 322       break;
 323
 324     case REQ_RDV_DESTROY:
 325       SIMIX_rdv_destroy(req->rdv_destroy.rdv);
 326       SIMIX_request_answer(req);
 327       break;
 328
 329     case REQ_RDV_GEY_BY_NAME:
 330       req->rdv_get_by_name.result =
 331         SIMIX_rdv_get_by_name(req->rdv_get_by_name.name);
 332       SIMIX_request_answer(req);
 333       break;
 334
 335     case REQ_RDV_COMM_COUNT_BY_HOST:
 336       req->rdv_comm_count_by_host.result = SIMIX_rdv_comm_count_by_host(
 337           req->rdv_comm_count_by_host.rdv,
 338           req->rdv_comm_count_by_host.host);
 339       SIMIX_request_answer(req);
 340       break;
 341
 342     case REQ_RDV_GET_HEAD:
 343       req->rdv_get_head.result =        SIMIX_rdv_get_head(req->rdv_get_head.rdv);
 344       SIMIX_request_answer(req);
 345       break;
 346
 347     case REQ_COMM_ISEND:
 348       req->comm_isend.result = SIMIX_comm_isend(
 349           req->issuer,
 350           req->comm_isend.rdv,
 351           req->comm_isend.task_size,
 352           req->comm_isend.rate,
 353           req->comm_isend.src_buff,
 354           req->comm_isend.src_buff_size,
 355           req->comm_isend.match_fun,
 356           req->comm_isend.data);
 357       SIMIX_request_answer(req);
 358       break;
 359
 360     case REQ_COMM_IRECV:
 361       req->comm_irecv.result = SIMIX_comm_irecv(
 362           req->issuer,
 363           req->comm_irecv.rdv,
 364           req->comm_irecv.dst_buff,
 365           req->comm_irecv.dst_buff_size,
 366           req->comm_irecv.match_fun,
 367           req->comm_irecv.data);
 368       SIMIX_request_answer(req);
 369       break;
 370
 371     case REQ_COMM_DESTROY:
 372       SIMIX_comm_destroy(req->comm_destroy.comm);
 373       SIMIX_request_answer(req);
 374       break;
 375
 376     case REQ_COMM_CANCEL:
 377       SIMIX_comm_cancel(req->comm_cancel.comm);
 378       SIMIX_request_answer(req);
 379       break;
 380
 381     case REQ_COMM_WAITANY:
 382       SIMIX_pre_comm_waitany(req, value);
 383       break;
 384
 385     case REQ_COMM_WAIT:
 386       SIMIX_pre_comm_wait(req);
 387       break;
 388
 389     case REQ_COMM_TEST:
 390       SIMIX_pre_comm_test(req);
 391       break;
 392
 393     case REQ_COMM_TESTANY:
 394       SIMIX_pre_comm_testany(req, value);
 395       break;
 396
 397     case REQ_COMM_GET_REMAINS:
 398       req->comm_get_remains.result =
 399         SIMIX_comm_get_remains(req->comm_get_remains.comm);
 400       SIMIX_request_answer(req);
 401       break;
 402
 403     case REQ_COMM_GET_STATE:
 404       req->comm_get_state.result =
 405         SIMIX_comm_get_state(req->comm_get_state.comm);
 406       SIMIX_request_answer(req);
 407       break;
 408
 409     case REQ_COMM_GET_SRC_DATA:
 410       req->comm_get_src_data.result = SIMIX_comm_get_src_data(req->comm_get_src_data.comm);
 411       SIMIX_request_answer(req);
 412       break;
 413
 414     case REQ_COMM_GET_DST_DATA:
 415       req->comm_get_dst_data.result = SIMIX_comm_get_dst_data(req->comm_get_dst_data.comm);
 416       SIMIX_request_answer(req);
 417       break;
 418
 419     case REQ_COMM_GET_SRC_BUFF:
 420       req->comm_get_src_buff.result =
 421         SIMIX_comm_get_src_buff(req->comm_get_src_buff.comm);
 422       SIMIX_request_answer(req);
 423       break;
 424
 425     case REQ_COMM_GET_DST_BUFF:
 426       req->comm_get_dst_buff.result =
 427         SIMIX_comm_get_dst_buff(req->comm_get_dst_buff.comm);
 428       SIMIX_request_answer(req);
 429       break;
 430
 431     case REQ_COMM_GET_SRC_BUFF_SIZE:
 432       req->comm_get_src_buff_size.result =
 433         SIMIX_comm_get_src_buff_size(req->comm_get_src_buff_size.comm);
 434       SIMIX_request_answer(req);
 435       break;
 436
 437     case REQ_COMM_GET_DST_BUFF_SIZE:
 438       req->comm_get_dst_buff_size.result =
 439         SIMIX_comm_get_dst_buff_size(req->comm_get_dst_buff_size.comm);
 440       SIMIX_request_answer(req);
 441       break;
 442
 443     case REQ_COMM_GET_SRC_PROC:
 444       req->comm_get_src_proc.result =
 445         SIMIX_comm_get_src_proc(req->comm_get_src_proc.comm);
 446       SIMIX_request_answer(req);
 447       break;
 448
 449     case REQ_COMM_GET_DST_PROC:
 450       req->comm_get_dst_proc.result =
 451         SIMIX_comm_get_dst_proc(req->comm_get_dst_proc.comm);
 452       SIMIX_request_answer(req);
 453       break;
 454
 455 #ifdef HAVE_LATENCY_BOUND_TRACKING
 456     case REQ_COMM_IS_LATENCY_BOUNDED:
 457       req->comm_is_latency_bounded.result =
 458         SIMIX_comm_is_latency_bounded(req->comm_is_latency_bounded.comm);
 459       SIMIX_request_answer(req);
 460       break;
 461 #endif
 462
 463 #ifdef HAVE_TRACING
 464     case REQ_SET_CATEGORY:
 465       SIMIX_set_category(
 466           req->set_category.action,
 467           req->set_category.category);
 468       SIMIX_request_answer(req);
 469       break;
 470 #endif
 471
 472     case REQ_MUTEX_INIT:
 473       req->mutex_init.result = SIMIX_mutex_init();
 474       SIMIX_request_answer(req);
 475       break;
 476
 477     case REQ_MUTEX_DESTROY:
 478       SIMIX_mutex_destroy(req->mutex_destroy.mutex);
 479       SIMIX_request_answer(req);
 480       break;
 481
 482     case REQ_MUTEX_LOCK:
 483       SIMIX_pre_mutex_lock(req);
 484       break;
 485
 486     case REQ_MUTEX_TRYLOCK:
 487       req->mutex_trylock.result =
 488               SIMIX_mutex_trylock(req->mutex_trylock.mutex, req->issuer);
 489       SIMIX_request_answer(req);
 490       break;
 491
 492     case REQ_MUTEX_UNLOCK:
 493       SIMIX_mutex_unlock(req->mutex_unlock.mutex, req->issuer);
 494       SIMIX_request_answer(req);
 495       break;
 496
 497     case REQ_COND_INIT:
 498       req->cond_init.result = SIMIX_cond_init();
 499       SIMIX_request_answer(req);
 500       break;
 501
 502     case REQ_COND_DESTROY:
 503       SIMIX_cond_destroy(req->cond_destroy.cond);
 504       SIMIX_request_answer(req);
 505       break;
 506
 507     case REQ_COND_SIGNAL:
 508       SIMIX_cond_signal(req->cond_signal.cond);
 509       SIMIX_request_answer(req);
 510       break;
 511
 512     case REQ_COND_WAIT:
 513       SIMIX_pre_cond_wait(req);
 514       break;
 515
 516     case REQ_COND_WAIT_TIMEOUT:
 517       SIMIX_pre_cond_wait_timeout(req);
 518       break;
 519
 520     case REQ_COND_BROADCAST:
 521       SIMIX_cond_broadcast(req->cond_broadcast.cond);
 522       SIMIX_request_answer(req);
 523       break;
 524
 525     case REQ_SEM_INIT:
 526       req->sem_init.result = SIMIX_sem_init(req->sem_init.capacity);
 527       SIMIX_request_answer(req);
 528       break;
 529
 530     case REQ_SEM_DESTROY:
 531       SIMIX_sem_destroy(req->sem_destroy.sem);
 532       SIMIX_request_answer(req);
 533       break;
 534
 535     case REQ_SEM_RELEASE:
 536       SIMIX_sem_release(req->sem_release.sem);
 537       SIMIX_request_answer(req);
 538       break;
 539
 540     case REQ_SEM_WOULD_BLOCK:
 541       req->sem_would_block.result =
 542         SIMIX_sem_would_block(req->sem_would_block.sem);
 543       SIMIX_request_answer(req);
 544       break;
 545
 546     case REQ_SEM_ACQUIRE:
 547       SIMIX_pre_sem_acquire(req);
 548       break;
 549
 550     case REQ_SEM_ACQUIRE_TIMEOUT:
 551       SIMIX_pre_sem_acquire_timeout(req);
 552       break;
 553
 554     case REQ_SEM_GET_CAPACITY:
 555       req->sem_get_capacity.result =
 556         SIMIX_sem_get_capacity(req->sem_get_capacity.sem);
 557       SIMIX_request_answer(req);
 558       break;
 559   }
 560 }
 561
 562 void SIMIX_request_post(smx_action_t action)
 563 {
 564   switch (action->type) {
 565
 566     case SIMIX_ACTION_EXECUTE:
 567     case SIMIX_ACTION_PARALLEL_EXECUTE:
 568       SIMIX_post_host_execute(action);
 569       break;
 570
 571     case SIMIX_ACTION_COMMUNICATE:
 572       SIMIX_post_comm(action);
 573       break;
 574
 575     case SIMIX_ACTION_SLEEP:
 576       SIMIX_post_process_sleep(action);
 577       break;
 578
 579     case SIMIX_ACTION_SYNCHRO:
 580       SIMIX_post_synchro(action);
 581       break;
 582
 583     case SIMIX_ACTION_IO:
 584       break;
 585   }
 586 }