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