src/mc/mc_request.cpp

   1 /* Copyright (c) 2008-2015. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include <cassert>
   8
   9 #include "src/mc/ModelChecker.hpp"
  10 #include "src/mc/mc_request.h"
  11 #include "src/mc/mc_smx.h"
  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);
 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
 239     // size_t size = size_pointer ? *size_pointer : 0;
 240     size_t size = 0;
 241     if (remote_size)
 242       mc_model_checker->process().read_bytes(&size, sizeof(size),
 243         remote(remote_size));
 244
 245     type = "iRecv";
 246     char* p = pointer_to_string(simcall_comm_irecv__get__dst_buff(req));
 247     char* bs = buff_size_to_string(size);
 248     if (issuer->host)
 249       args = bprintf("dst=(%lu)%s (%s), buff=%s, size=%s", issuer->pid, MC_smx_actor_get_host_name(issuer),
 250                      MC_smx_actor_get_name(issuer), p, bs);
 251     else
 252       args = bprintf("dst=(%lu)%s, buff=%s, size=%s", issuer->pid, MC_smx_actor_get_name(issuer), p, bs);
 253     xbt_free(bs);
 254     xbt_free(p);
 255     break;
 256   }
 257
 258   case SIMCALL_COMM_WAIT: {
 259     simgrid::kernel::activity::CommImpl* remote_act =
 260         static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(req));
 261     char* p;
 262     if (value == -1) {
 263       type = "WaitTimeout";
 264       p = pointer_to_string(remote_act);
 265       args = bprintf("comm=%s", p);
 266     } else {
 267       type = "Wait";
 268       p = pointer_to_string(remote_act);
 269
 270       simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
 271       simgrid::kernel::activity::CommImpl* act;
 272       if (use_remote_comm) {
 273         mc_model_checker->process().read(temp_synchro,
 274                                          remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 275         act = temp_synchro.getBuffer();
 276       } else
 277         act = remote_act;
 278
 279       smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_proc));
 280       smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_proc));
 281       args =
 282           bprintf("comm=%s [(%lu)%s (%s)-> (%lu)%s (%s)]", p, src_proc ? src_proc->pid : 0,
 283                   src_proc ? MC_smx_actor_get_host_name(src_proc) : "", src_proc ? MC_smx_actor_get_name(src_proc) : "",
 284                   dst_proc ? dst_proc->pid : 0, dst_proc ? MC_smx_actor_get_host_name(dst_proc) : "",
 285                   dst_proc ? MC_smx_actor_get_name(dst_proc) : "");
 286     }
 287     xbt_free(p);
 288     break;
 289   }
 290
 291   case SIMCALL_COMM_TEST: {
 292     simgrid::kernel::activity::CommImpl* remote_act =
 293         static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_test__getraw__comm(req));
 294     simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
 295     simgrid::kernel::activity::CommImpl* act;
 296     if (use_remote_comm) {
 297       mc_model_checker->process().read(temp_synchro,
 298                                        remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 299       act = temp_synchro.getBuffer();
 300     } else
 301       act = remote_act;
 302
 303     char* p;
 304     if (act->src_proc == nullptr || act->dst_proc == nullptr) {
 305       type = "Test FALSE";
 306       p = pointer_to_string(remote_act);
 307       args = bprintf("comm=%s", p);
 308     } else {
 309       type = "Test TRUE";
 310       p = pointer_to_string(remote_act);
 311
 312       smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_proc));
 313       smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_proc));
 314       args = bprintf("comm=%s [(%lu)%s (%s) -> (%lu)%s (%s)]", p, src_proc->pid, MC_smx_actor_get_name(src_proc),
 315                      MC_smx_actor_get_host_name(src_proc), dst_proc->pid, MC_smx_actor_get_name(dst_proc),
 316                      MC_smx_actor_get_host_name(dst_proc));
 317     }
 318     xbt_free(p);
 319     break;
 320   }
 321
 322   case SIMCALL_COMM_WAITANY: {
 323     type = "WaitAny";
 324     s_xbt_dynar_t comms;
 325     mc_model_checker->process().read_bytes(
 326       &comms, sizeof(comms), remote(simcall_comm_waitany__get__comms(req)));
 327     if (not xbt_dynar_is_empty(&comms)) {
 328       smx_activity_t remote_sync;
 329       read_element(mc_model_checker->process(),
 330         &remote_sync, remote(simcall_comm_waitany__get__comms(req)), value,
 331         sizeof(remote_sync));
 332       char* p = pointer_to_string(&*remote_sync);
 333       args = bprintf("comm=%s (%d of %lu)",
 334         p, value + 1, xbt_dynar_length(&comms));
 335       xbt_free(p);
 336     } else
 337       args = bprintf("comm at idx %d", value);
 338     break;
 339   }
 340
 341   case SIMCALL_COMM_TESTANY:
 342     if (value == -1) {
 343       type = "TestAny FALSE";
 344       args = xbt_strdup("-");
 345     } else {
 346       type = "TestAny";
 347       args =
 348           bprintf("(%d of %zu)", value + 1,
 349                     simcall_comm_testany__get__count(req));
 350     }
 351     break;
 352
 353   case SIMCALL_MUTEX_TRYLOCK:
 354   case SIMCALL_MUTEX_LOCK: {
 355     if (req->call == SIMCALL_MUTEX_LOCK)
 356       type = "Mutex LOCK";
 357     else
 358       type = "Mutex TRYLOCK";
 359
 360     simgrid::mc::Remote<simgrid::simix::MutexImpl> mutex;
 361     mc_model_checker->process().read_bytes(mutex.getBuffer(), sizeof(mutex),
 362       remote(
 363         req->call == SIMCALL_MUTEX_LOCK
 364         ? simcall_mutex_lock__get__mutex(req)
 365         : simcall_mutex_trylock__get__mutex(req)
 366       ));
 367     s_xbt_swag_t mutex_sleeping;
 368     mc_model_checker->process().read_bytes(&mutex_sleeping, sizeof(mutex_sleeping),
 369       remote(mutex.getBuffer()->sleeping));
 370
 371     args =
 372         bprintf("locked = %d, owner = %d, sleeping = %d", mutex.getBuffer()->locked,
 373                 mutex.getBuffer()->owner != nullptr
 374                     ? (int)mc_model_checker->process().resolveActor(simgrid::mc::remote(mutex.getBuffer()->owner))->pid
 375                     : -1,
 376                 mutex_sleeping.count);
 377     break;
 378   }
 379
 380   case SIMCALL_MC_RANDOM:
 381     type = "MC_RANDOM";
 382     args = bprintf("%d", value);
 383     break;
 384
 385   default:
 386     type = SIMIX_simcall_name(req->call);
 387     args = bprintf("??");
 388     break;
 389   }
 390
 391   std::string str;
 392   if (args != nullptr)
 393     str = simgrid::xbt::string_printf("[(%lu)%s (%s)] %s(%s)", issuer->pid, MC_smx_actor_get_host_name(issuer),
 394                                       MC_smx_actor_get_name(issuer), type, args);
 395   else
 396     str = simgrid::xbt::string_printf("[(%lu)%s (%s)] %s ", issuer->pid, MC_smx_actor_get_host_name(issuer),
 397                                       MC_smx_actor_get_name(issuer), type);
 398   xbt_free(args);
 399   return str;
 400 }
 401
 402 namespace simgrid {
 403 namespace mc {
 404
 405 bool request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx)
 406 {
 407   simgrid::kernel::activity::ActivityImpl* remote_act = nullptr;
 408   switch (req->call) {
 409
 410   case SIMCALL_COMM_WAIT:
 411     /* FIXME: check also that src and dst processes are not suspended */
 412     remote_act = simcall_comm_wait__getraw__comm(req);
 413     break;
 414
 415   case SIMCALL_COMM_WAITANY: {
 416     read_element(mc_model_checker->process(), &remote_act, remote(simcall_comm_waitany__getraw__comms(req)), idx,
 417                  sizeof(remote_act));
 418     }
 419     break;
 420
 421   case SIMCALL_COMM_TESTANY:
 422     remote_act = mc_model_checker->process().read(remote(simcall_comm_testany__getraw__comms(req) + idx));
 423     break;
 424
 425   default:
 426     return true;
 427   }
 428
 429   simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 430   mc_model_checker->process().read(temp_comm, remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 431   simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
 432   return comm->src_proc && comm->dst_proc;
 433 }
 434
 435 bool actor_is_enabled(smx_actor_t actor)
 436 {
 437   return simgrid::mc::request_is_enabled(&actor->simcall);
 438 }
 439
 440 static const char* colors[] = {
 441   "blue",
 442   "red",
 443   "green3",
 444   "goldenrod",
 445   "brown",
 446   "purple",
 447   "magenta",
 448   "turquoise4",
 449   "gray25",
 450   "forestgreen",
 451   "hotpink",
 452   "lightblue",
 453   "tan",
 454 };
 455
 456 static inline const char* get_color(int id)
 457 {
 458   return colors[id % (sizeof(colors) / sizeof(colors[0])) ];
 459 }
 460
 461 std::string request_get_dot_output(smx_simcall_t req, int value)
 462 {
 463   std::string label;
 464
 465   const smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
 466
 467   switch (req->call) {
 468   case SIMCALL_COMM_ISEND:
 469     if (issuer->host)
 470       label = simgrid::xbt::string_printf("[(%lu)%s] iSend", issuer->pid, MC_smx_actor_get_host_name(issuer));
 471     else
 472       label = bprintf("[(%lu)] iSend", issuer->pid);
 473     break;
 474
 475   case SIMCALL_COMM_IRECV:
 476     if (issuer->host)
 477       label = simgrid::xbt::string_printf("[(%lu)%s] iRecv", issuer->pid, MC_smx_actor_get_host_name(issuer));
 478     else
 479       label = simgrid::xbt::string_printf("[(%lu)] iRecv", issuer->pid);
 480     break;
 481
 482   case SIMCALL_COMM_WAIT: {
 483     if (value == -1) {
 484       if (issuer->host)
 485         label = simgrid::xbt::string_printf("[(%lu)%s] WaitTimeout", issuer->pid, MC_smx_actor_get_host_name(issuer));
 486       else
 487         label = simgrid::xbt::string_printf("[(%lu)] WaitTimeout", issuer->pid);
 488     } else {
 489       simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_wait__getraw__comm(req);
 490       simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 491       mc_model_checker->process().read(temp_comm,
 492                                        remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 493       simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
 494
 495       smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->src_proc));
 496       smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->dst_proc));
 497       if (issuer->host)
 498         label = simgrid::xbt::string_printf("[(%lu)%s] Wait [(%lu)->(%lu)]", issuer->pid,
 499                                             MC_smx_actor_get_host_name(issuer), src_proc ? src_proc->pid : 0,
 500                                             dst_proc ? dst_proc->pid : 0);
 501       else
 502         label = simgrid::xbt::string_printf("[(%lu)] Wait [(%lu)->(%lu)]",
 503                     issuer->pid,
 504                     src_proc ? src_proc->pid : 0,
 505                     dst_proc ? dst_proc->pid : 0);
 506     }
 507     break;
 508   }
 509
 510   case SIMCALL_COMM_TEST: {
 511     simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_test__getraw__comm(req);
 512     simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 513     mc_model_checker->process().read(temp_comm, remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 514     simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
 515     if (comm->src_proc == nullptr || comm->dst_proc == nullptr) {
 516       if (issuer->host)
 517         label = simgrid::xbt::string_printf("[(%lu)%s] Test FALSE", issuer->pid, MC_smx_actor_get_host_name(issuer));
 518       else
 519         label = bprintf("[(%lu)] Test FALSE", issuer->pid);
 520     } else {
 521       if (issuer->host)
 522         label = simgrid::xbt::string_printf("[(%lu)%s] Test TRUE", issuer->pid, MC_smx_actor_get_host_name(issuer));
 523       else
 524         label = simgrid::xbt::string_printf("[(%lu)] Test TRUE", issuer->pid);
 525     }
 526     break;
 527   }
 528
 529   case SIMCALL_COMM_WAITANY: {
 530     unsigned long comms_size = read_length(
 531       mc_model_checker->process(), remote(simcall_comm_waitany__get__comms(req)));
 532     if (issuer->host)
 533       label = simgrid::xbt::string_printf("[(%lu)%s] WaitAny [%d of %lu]", issuer->pid,
 534                                           MC_smx_actor_get_host_name(issuer), value + 1, comms_size);
 535     else
 536       label = simgrid::xbt::string_printf("[(%lu)] WaitAny [%d of %lu]",
 537                   issuer->pid, value + 1, comms_size);
 538     break;
 539   }
 540
 541   case SIMCALL_COMM_TESTANY:
 542     if (value == -1) {
 543       if (issuer->host)
 544         label = simgrid::xbt::string_printf("[(%lu)%s] TestAny FALSE", issuer->pid, MC_smx_actor_get_host_name(issuer));
 545       else
 546         label = simgrid::xbt::string_printf("[(%lu)] TestAny FALSE", issuer->pid);
 547     } else {
 548       if (issuer->host)
 549         label = simgrid::xbt::string_printf("[(%lu)%s] TestAny TRUE [%d of %lu]", issuer->pid,
 550                                             MC_smx_actor_get_host_name(issuer), value + 1,
 551                                             simcall_comm_testany__get__count(req));
 552       else
 553         label = simgrid::xbt::string_printf("[(%lu)] TestAny TRUE [%d of %lu]",
 554                     issuer->pid,
 555                     value + 1,
 556                     simcall_comm_testany__get__count(req));
 557     }
 558     break;
 559
 560   case SIMCALL_MUTEX_TRYLOCK:
 561     label = simgrid::xbt::string_printf("[(%lu)] Mutex TRYLOCK", issuer->pid);
 562     break;
 563
 564   case SIMCALL_MUTEX_LOCK:
 565     label = simgrid::xbt::string_printf("[(%lu)] Mutex LOCK", issuer->pid);
 566     break;
 567
 568   case SIMCALL_MC_RANDOM:
 569     if (issuer->host)
 570       label = simgrid::xbt::string_printf("[(%lu)%s] MC_RANDOM (%d)", issuer->pid, MC_smx_actor_get_host_name(issuer),
 571                                           value);
 572     else
 573       label = simgrid::xbt::string_printf("[(%lu)] MC_RANDOM (%d)", issuer->pid, value);
 574     break;
 575
 576   default:
 577     THROW_UNIMPLEMENTED;
 578   }
 579
 580   const char* color = get_color(issuer->pid - 1);
 581   return  simgrid::xbt::string_printf(
 582         "label = \"%s\", color = %s, fontcolor = %s", label.c_str(),
 583         color, color);
 584 }
 585
 586 }
 587 }