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