src/mc/mc_request.cpp

   1 /* Copyright (c) 2008-2017. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #include <cassert>
   7
   8 #include "src/include/mc/mc.h"
   9 #include "src/mc/ModelChecker.hpp"
  10 #include "src/mc/mc_request.hpp"
  11 #include "src/mc/mc_smx.hpp"
  12 #include "src/mc/mc_xbt.hpp"
  13
  14 using simgrid::mc::remote;
  15
  16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_request, mc,
  17                                 "Logging specific to MC (request)");
  18
  19 static char *pointer_to_string(void *pointer);
  20 static char *buff_size_to_string(size_t size);
  21
  22 static inline simgrid::kernel::activity::CommImpl* MC_get_comm(smx_simcall_t r)
  23 {
  24   switch (r->call ) {
  25   case SIMCALL_COMM_WAIT:
  26     return static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(r));
  27   case SIMCALL_COMM_TEST:
  28     return static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_test__getraw__comm(r));
  29   default:
  30     return nullptr;
  31   }
  32 }
  33
  34 static inline
  35 smx_mailbox_t MC_get_mbox(smx_simcall_t r)
  36 {
  37   switch(r->call) {
  38   case SIMCALL_COMM_ISEND:
  39     return simcall_comm_isend__get__mbox(r);
  40   case SIMCALL_COMM_IRECV:
  41     return simcall_comm_irecv__get__mbox(r);
  42   default:
  43     return nullptr;
  44   }
  45 }
  46
  47 namespace simgrid {
  48 namespace mc {
  49
  50 // Does half the job
  51 static inline
  52 bool request_depend_asymmetric(smx_simcall_t r1, smx_simcall_t r2)
  53 {
  54   if (r1->call == SIMCALL_COMM_ISEND && r2->call == SIMCALL_COMM_IRECV)
  55     return false;
  56
  57   if (r1->call == SIMCALL_COMM_IRECV && r2->call == SIMCALL_COMM_ISEND)
  58     return false;
  59
  60   // Those are internal requests, we do not need indirection
  61   // because those objects are copies:
  62   simgrid::kernel::activity::CommImpl* synchro1 = MC_get_comm(r1);
  63   simgrid::kernel::activity::CommImpl* synchro2 = MC_get_comm(r2);
  64
  65   if ((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
  66       && r2->call == SIMCALL_COMM_WAIT) {
  67
  68     smx_mailbox_t mbox = MC_get_mbox(r1);
  69
  70     if (mbox != synchro2->mbox_cpy
  71         && simcall_comm_wait__get__timeout(r2) <= 0)
  72       return false;
  73
  74     if ((r1->issuer != synchro2->src_proc)
  75         && (r1->issuer != synchro2->dst_proc)
  76         && simcall_comm_wait__get__timeout(r2) <= 0)
  77       return false;
  78
  79     if ((r1->call == SIMCALL_COMM_ISEND)
  80         && (synchro2->type == SIMIX_COMM_SEND)
  81         && (synchro2->src_buff !=
  82             simcall_comm_isend__get__src_buff(r1))
  83         && simcall_comm_wait__get__timeout(r2) <= 0)
  84       return false;
  85
  86     if ((r1->call == SIMCALL_COMM_IRECV)
  87         && (synchro2->type == SIMIX_COMM_RECEIVE)
  88         && (synchro2->dst_buff != simcall_comm_irecv__get__dst_buff(r1))
  89         && simcall_comm_wait__get__timeout(r2) <= 0)
  90       return false;
  91   }
  92
  93   /* FIXME: the following rule assumes that the result of the
  94    * isend/irecv call is not stored in a buffer used in the
  95    * test call. */
  96 #if 0
  97   if((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
  98      &&  r2->call == SIMCALL_COMM_TEST)
  99      return FALSE;
 100 #endif
 101
 102   if (r1->call == SIMCALL_COMM_WAIT
 103       && (r2->call == SIMCALL_COMM_WAIT || r2->call == SIMCALL_COMM_TEST)
 104       && (synchro1->src_proc == nullptr || synchro1->dst_proc == nullptr))
 105     return false;
 106
 107   if (r1->call == SIMCALL_COMM_TEST &&
 108       (simcall_comm_test__get__comm(r1) == nullptr
 109        || synchro1->src_buff == nullptr
 110        || synchro1->dst_buff == nullptr))
 111     return false;
 112
 113   if (r1->call == SIMCALL_COMM_TEST && r2->call == SIMCALL_COMM_WAIT
 114       && synchro1->src_buff == synchro2->src_buff
 115       && synchro1->dst_buff == synchro2->dst_buff)
 116     return false;
 117
 118   if (r1->call == SIMCALL_COMM_WAIT && r2->call == SIMCALL_COMM_TEST
 119       && synchro1->src_buff != nullptr
 120       && synchro1->dst_buff != nullptr
 121       && synchro2->src_buff != nullptr
 122       && synchro2->dst_buff != nullptr
 123       && synchro1->dst_buff != synchro2->src_buff
 124       && synchro1->dst_buff != synchro2->dst_buff
 125       && synchro2->dst_buff != synchro1->src_buff)
 126     return false;
 127
 128   return true;
 129 }
 130
 131 // Those are internal_req
 132 bool request_depend(smx_simcall_t r1, smx_simcall_t r2)
 133 {
 134   if (r1->issuer == r2->issuer)
 135     return false;
 136
 137   /* Wait with timeout transitions are not considered by the independence theorem, thus we consider them as dependent with all other transitions */
 138   if ((r1->call == SIMCALL_COMM_WAIT && simcall_comm_wait__get__timeout(r1) > 0)
 139       || (r2->call == SIMCALL_COMM_WAIT
 140           && simcall_comm_wait__get__timeout(r2) > 0))
 141     return TRUE;
 142
 143   if (r1->call != r2->call)
 144     return request_depend_asymmetric(r1, r2)
 145       && request_depend_asymmetric(r2, r1);
 146
 147   // Those are internal requests, we do not need indirection
 148   // because those objects are copies:
 149   simgrid::kernel::activity::CommImpl* synchro1 = MC_get_comm(r1);
 150   simgrid::kernel::activity::CommImpl* synchro2 = MC_get_comm(r2);
 151
 152   switch(r1->call) {
 153   case SIMCALL_COMM_ISEND:
 154     return simcall_comm_isend__get__mbox(r1)
 155       == simcall_comm_isend__get__mbox(r2);
 156   case SIMCALL_COMM_IRECV:
 157     return simcall_comm_irecv__get__mbox(r1)
 158       == simcall_comm_irecv__get__mbox(r2);
 159   case SIMCALL_COMM_WAIT:
 160     if (synchro1->src_buff == synchro2->src_buff
 161         && synchro1->dst_buff == synchro2->dst_buff)
 162       return false;
 163     else if (synchro1->src_buff != nullptr
 164         && synchro1->dst_buff != nullptr
 165         && synchro2->src_buff != nullptr
 166         && synchro2->dst_buff != nullptr
 167         && synchro1->dst_buff != synchro2->src_buff
 168         && synchro1->dst_buff != synchro2->dst_buff
 169         && synchro2->dst_buff != synchro1->src_buff)
 170       return false;
 171     else
 172       return true;
 173   default:
 174     return true;
 175   }
 176 }
 177
 178 }
 179 }
 180
 181 static char *pointer_to_string(void *pointer)
 182 {
 183
 184   if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
 185     return bprintf("%p", pointer);
 186
 187   return xbt_strdup("(verbose only)");
 188 }
 189
 190 static char *buff_size_to_string(size_t buff_size)
 191 {
 192
 193   if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
 194     return bprintf("%zu", buff_size);
 195
 196   return xbt_strdup("(verbose only)");
 197 }
 198
 199
 200 std::string simgrid::mc::request_to_string(smx_simcall_t req, int value, simgrid::mc::RequestType request_type)
 201 {
 202   xbt_assert(mc_model_checker != nullptr, "Must be called from MCer");
 203
 204   bool use_remote_comm = true;
 205   switch(request_type) {
 206   case simgrid::mc::RequestType::simix:
 207     use_remote_comm = true;
 208     break;
 209   case simgrid::mc::RequestType::executed:
 210   case simgrid::mc::RequestType::internal:
 211     use_remote_comm = false;
 212     break;
 213   }
 214
 215   const char* type = nullptr;
 216   char *args = nullptr;
 217
 218   smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
 219
 220   switch (req->call) {
 221
 222   case SIMCALL_COMM_ISEND: {
 223     type = "iSend";
 224     char* p = pointer_to_string(simcall_comm_isend__get__src_buff(req));
 225     char* bs = buff_size_to_string(simcall_comm_isend__get__src_buff_size(req));
 226     if (issuer->host)
 227       args = bprintf("src=(%lu)%s (%s), buff=%s, size=%s", issuer->pid, MC_smx_actor_get_host_name(issuer),
 228                      MC_smx_actor_get_name(issuer), p, bs);
 229     else
 230       args = bprintf("src=(%lu)%s, buff=%s, size=%s", issuer->pid, MC_smx_actor_get_name(issuer), p, bs);
 231     xbt_free(bs);
 232     xbt_free(p);
 233     break;
 234   }
 235
 236   case SIMCALL_COMM_IRECV: {
 237     size_t* remote_size = simcall_comm_irecv__get__dst_buff_size(req);
 238     size_t size = 0;
 239     if (remote_size)
 240       mc_model_checker->process().read_bytes(&size, sizeof(size),
 241         remote(remote_size));
 242
 243     type = "iRecv";
 244     char* p = pointer_to_string(simcall_comm_irecv__get__dst_buff(req));
 245     char* bs = buff_size_to_string(size);
 246     if (issuer->host)
 247       args = bprintf("dst=(%lu)%s (%s), buff=%s, size=%s", issuer->pid, MC_smx_actor_get_host_name(issuer),
 248                      MC_smx_actor_get_name(issuer), p, bs);
 249     else
 250       args = bprintf("dst=(%lu)%s, buff=%s, size=%s", issuer->pid, MC_smx_actor_get_name(issuer), p, bs);
 251     xbt_free(bs);
 252     xbt_free(p);
 253     break;
 254   }
 255
 256   case SIMCALL_COMM_WAIT: {
 257     simgrid::kernel::activity::CommImpl* remote_act =
 258         static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(req));
 259     char* p;
 260     if (value == -1) {
 261       type = "WaitTimeout";
 262       p = pointer_to_string(remote_act);
 263       args = bprintf("comm=%s", p);
 264     } else {
 265       type = "Wait";
 266       p = pointer_to_string(remote_act);
 267
 268       simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
 269       simgrid::kernel::activity::CommImpl* act;
 270       if (use_remote_comm) {
 271         mc_model_checker->process().read(temp_synchro,
 272                                          remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 273         act = temp_synchro.getBuffer();
 274       } else
 275         act = remote_act;
 276
 277       smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_proc));
 278       smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_proc));
 279       args =
 280           bprintf("comm=%s [(%lu)%s (%s)-> (%lu)%s (%s)]", p, src_proc ? src_proc->pid : 0,
 281                   src_proc ? MC_smx_actor_get_host_name(src_proc) : "", src_proc ? MC_smx_actor_get_name(src_proc) : "",
 282                   dst_proc ? dst_proc->pid : 0, dst_proc ? MC_smx_actor_get_host_name(dst_proc) : "",
 283                   dst_proc ? MC_smx_actor_get_name(dst_proc) : "");
 284     }
 285     xbt_free(p);
 286     break;
 287   }
 288
 289   case SIMCALL_COMM_TEST: {
 290     simgrid::kernel::activity::CommImpl* remote_act =
 291         static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_test__getraw__comm(req));
 292     simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
 293     simgrid::kernel::activity::CommImpl* act;
 294     if (use_remote_comm) {
 295       mc_model_checker->process().read(temp_synchro,
 296                                        remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 297       act = temp_synchro.getBuffer();
 298     } else
 299       act = remote_act;
 300
 301     char* p;
 302     if (act->src_proc == nullptr || act->dst_proc == nullptr) {
 303       type = "Test FALSE";
 304       p = pointer_to_string(remote_act);
 305       args = bprintf("comm=%s", p);
 306     } else {
 307       type = "Test TRUE";
 308       p = pointer_to_string(remote_act);
 309
 310       smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_proc));
 311       smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_proc));
 312       args = bprintf("comm=%s [(%lu)%s (%s) -> (%lu)%s (%s)]", p, src_proc->pid, MC_smx_actor_get_name(src_proc),
 313                      MC_smx_actor_get_host_name(src_proc), dst_proc->pid, MC_smx_actor_get_name(dst_proc),
 314                      MC_smx_actor_get_host_name(dst_proc));
 315     }
 316     xbt_free(p);
 317     break;
 318   }
 319
 320   case SIMCALL_COMM_WAITANY: {
 321     type = "WaitAny";
 322     s_xbt_dynar_t comms;
 323     mc_model_checker->process().read_bytes(
 324       &comms, sizeof(comms), remote(simcall_comm_waitany__get__comms(req)));
 325     if (not xbt_dynar_is_empty(&comms)) {
 326       smx_activity_t remote_sync;
 327       read_element(mc_model_checker->process(),
 328         &remote_sync, remote(simcall_comm_waitany__get__comms(req)), value,
 329         sizeof(remote_sync));
 330       char* p = pointer_to_string(&*remote_sync);
 331       args = bprintf("comm=%s (%d of %lu)",
 332         p, value + 1, xbt_dynar_length(&comms));
 333       xbt_free(p);
 334     } else
 335       args = bprintf("comm at idx %d", value);
 336     break;
 337   }
 338
 339   case SIMCALL_COMM_TESTANY:
 340     if (value == -1) {
 341       type = "TestAny FALSE";
 342       args = xbt_strdup("-");
 343     } else {
 344       type = "TestAny";
 345       args =
 346           bprintf("(%d of %zu)", value + 1,
 347                     simcall_comm_testany__get__count(req));
 348     }
 349     break;
 350
 351   case SIMCALL_MUTEX_TRYLOCK:
 352   case SIMCALL_MUTEX_LOCK: {
 353     if (req->call == SIMCALL_MUTEX_LOCK)
 354       type = "Mutex LOCK";
 355     else
 356       type = "Mutex TRYLOCK";
 357
 358     simgrid::mc::Remote<simgrid::simix::MutexImpl> mutex;
 359     mc_model_checker->process().read_bytes(mutex.getBuffer(), sizeof(mutex),
 360       remote(
 361         req->call == SIMCALL_MUTEX_LOCK
 362         ? simcall_mutex_lock__get__mutex(req)
 363         : simcall_mutex_trylock__get__mutex(req)
 364       ));
 365     s_xbt_swag_t mutex_sleeping;
 366     mc_model_checker->process().read_bytes(&mutex_sleeping, sizeof(mutex_sleeping),
 367       remote(mutex.getBuffer()->sleeping));
 368
 369     args =
 370         bprintf("locked = %d, owner = %d, sleeping = %d", mutex.getBuffer()->locked,
 371                 mutex.getBuffer()->owner != nullptr
 372                     ? (int)mc_model_checker->process().resolveActor(simgrid::mc::remote(mutex.getBuffer()->owner))->pid
 373                     : -1,
 374                 mutex_sleeping.count);
 375     break;
 376   }
 377
 378   case SIMCALL_MC_RANDOM:
 379     type = "MC_RANDOM";
 380     args = bprintf("%d", value);
 381     break;
 382
 383   default:
 384     type = SIMIX_simcall_name(req->call);
 385     args = bprintf("??");
 386     break;
 387   }
 388
 389   std::string str;
 390   if (args != nullptr)
 391     str = simgrid::xbt::string_printf("[(%lu)%s (%s)] %s(%s)", issuer->pid, MC_smx_actor_get_host_name(issuer),
 392                                       MC_smx_actor_get_name(issuer), type, args);
 393   else
 394     str = simgrid::xbt::string_printf("[(%lu)%s (%s)] %s ", issuer->pid, MC_smx_actor_get_host_name(issuer),
 395                                       MC_smx_actor_get_name(issuer), type);
 396   xbt_free(args);
 397   return str;
 398 }
 399
 400 namespace simgrid {
 401 namespace mc {
 402
 403 bool request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx)
 404 {
 405   simgrid::kernel::activity::ActivityImpl* remote_act = nullptr;
 406   switch (req->call) {
 407
 408   case SIMCALL_COMM_WAIT:
 409     /* FIXME: check also that src and dst processes are not suspended */
 410     remote_act = simcall_comm_wait__getraw__comm(req);
 411     break;
 412
 413   case SIMCALL_COMM_WAITANY: {
 414     read_element(mc_model_checker->process(), &remote_act, remote(simcall_comm_waitany__getraw__comms(req)), idx,
 415                  sizeof(remote_act));
 416     }
 417     break;
 418
 419   case SIMCALL_COMM_TESTANY:
 420     remote_act = mc_model_checker->process().read(remote(simcall_comm_testany__getraw__comms(req) + idx));
 421     break;
 422
 423   default:
 424     return true;
 425   }
 426
 427   simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 428   mc_model_checker->process().read(temp_comm, remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 429   simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
 430   return comm->src_proc && comm->dst_proc;
 431 }
 432
 433
 434 static const char* colors[] = {
 435   "blue",
 436   "red",
 437   "green3",
 438   "goldenrod",
 439   "brown",
 440   "purple",
 441   "magenta",
 442   "turquoise4",
 443   "gray25",
 444   "forestgreen",
 445   "hotpink",
 446   "lightblue",
 447   "tan",
 448 };
 449
 450 static inline const char* get_color(int id)
 451 {
 452   return colors[id % (sizeof(colors) / sizeof(colors[0])) ];
 453 }
 454
 455 std::string request_get_dot_output(smx_simcall_t req, int value)
 456 {
 457   std::string label;
 458
 459   const smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
 460
 461   switch (req->call) {
 462   case SIMCALL_COMM_ISEND:
 463     if (issuer->host)
 464       label = simgrid::xbt::string_printf("[(%lu)%s] iSend", issuer->pid, MC_smx_actor_get_host_name(issuer));
 465     else
 466       label = bprintf("[(%lu)] iSend", issuer->pid);
 467     break;
 468
 469   case SIMCALL_COMM_IRECV:
 470     if (issuer->host)
 471       label = simgrid::xbt::string_printf("[(%lu)%s] iRecv", issuer->pid, MC_smx_actor_get_host_name(issuer));
 472     else
 473       label = simgrid::xbt::string_printf("[(%lu)] iRecv", issuer->pid);
 474     break;
 475
 476   case SIMCALL_COMM_WAIT: {
 477     if (value == -1) {
 478       if (issuer->host)
 479         label = simgrid::xbt::string_printf("[(%lu)%s] WaitTimeout", issuer->pid, MC_smx_actor_get_host_name(issuer));
 480       else
 481         label = simgrid::xbt::string_printf("[(%lu)] WaitTimeout", issuer->pid);
 482     } else {
 483       simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_wait__getraw__comm(req);
 484       simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 485       mc_model_checker->process().read(temp_comm,
 486                                        remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 487       simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
 488
 489       smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->src_proc));
 490       smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->dst_proc));
 491       if (issuer->host)
 492         label = simgrid::xbt::string_printf("[(%lu)%s] Wait [(%lu)->(%lu)]", issuer->pid,
 493                                             MC_smx_actor_get_host_name(issuer), src_proc ? src_proc->pid : 0,
 494                                             dst_proc ? dst_proc->pid : 0);
 495       else
 496         label = simgrid::xbt::string_printf("[(%lu)] Wait [(%lu)->(%lu)]",
 497                     issuer->pid,
 498                     src_proc ? src_proc->pid : 0,
 499                     dst_proc ? dst_proc->pid : 0);
 500     }
 501     break;
 502   }
 503
 504   case SIMCALL_COMM_TEST: {
 505     simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_test__getraw__comm(req);
 506     simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 507     mc_model_checker->process().read(temp_comm, remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 508     simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
 509     if (comm->src_proc == nullptr || comm->dst_proc == nullptr) {
 510       if (issuer->host)
 511         label = simgrid::xbt::string_printf("[(%lu)%s] Test FALSE", issuer->pid, MC_smx_actor_get_host_name(issuer));
 512       else
 513         label = bprintf("[(%lu)] Test FALSE", issuer->pid);
 514     } else {
 515       if (issuer->host)
 516         label = simgrid::xbt::string_printf("[(%lu)%s] Test TRUE", issuer->pid, MC_smx_actor_get_host_name(issuer));
 517       else
 518         label = simgrid::xbt::string_printf("[(%lu)] Test TRUE", issuer->pid);
 519     }
 520     break;
 521   }
 522
 523   case SIMCALL_COMM_WAITANY: {
 524     unsigned long comms_size = read_length(
 525       mc_model_checker->process(), remote(simcall_comm_waitany__get__comms(req)));
 526     if (issuer->host)
 527       label = simgrid::xbt::string_printf("[(%lu)%s] WaitAny [%d of %lu]", issuer->pid,
 528                                           MC_smx_actor_get_host_name(issuer), value + 1, comms_size);
 529     else
 530       label = simgrid::xbt::string_printf("[(%lu)] WaitAny [%d of %lu]",
 531                   issuer->pid, value + 1, comms_size);
 532     break;
 533   }
 534
 535   case SIMCALL_COMM_TESTANY:
 536     if (value == -1) {
 537       if (issuer->host)
 538         label = simgrid::xbt::string_printf("[(%lu)%s] TestAny FALSE", issuer->pid, MC_smx_actor_get_host_name(issuer));
 539       else
 540         label = simgrid::xbt::string_printf("[(%lu)] TestAny FALSE", issuer->pid);
 541     } else {
 542       if (issuer->host)
 543         label = simgrid::xbt::string_printf("[(%lu)%s] TestAny TRUE [%d of %lu]", issuer->pid,
 544                                             MC_smx_actor_get_host_name(issuer), value + 1,
 545                                             simcall_comm_testany__get__count(req));
 546       else
 547         label = simgrid::xbt::string_printf("[(%lu)] TestAny TRUE [%d of %lu]",
 548                     issuer->pid,
 549                     value + 1,
 550                     simcall_comm_testany__get__count(req));
 551     }
 552     break;
 553
 554   case SIMCALL_MUTEX_TRYLOCK:
 555     label = simgrid::xbt::string_printf("[(%lu)] Mutex TRYLOCK", issuer->pid);
 556     break;
 557
 558   case SIMCALL_MUTEX_LOCK:
 559     label = simgrid::xbt::string_printf("[(%lu)] Mutex LOCK", issuer->pid);
 560     break;
 561
 562   case SIMCALL_MC_RANDOM:
 563     if (issuer->host)
 564       label = simgrid::xbt::string_printf("[(%lu)%s] MC_RANDOM (%d)", issuer->pid, MC_smx_actor_get_host_name(issuer),
 565                                           value);
 566     else
 567       label = simgrid::xbt::string_printf("[(%lu)] MC_RANDOM (%d)", issuer->pid, value);
 568     break;
 569
 570   default:
 571     THROW_UNIMPLEMENTED;
 572   }
 573
 574   const char* color = get_color(issuer->pid - 1);
 575   return  simgrid::xbt::string_printf(
 576         "label = \"%s\", color = %s, fontcolor = %s", label.c_str(),
 577         color, color);
 578 }
 579
 580 }
 581 }