src/mc/mc_request.cpp

   1 /* Copyright (c) 2008-2019. 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 "src/mc/mc_request.hpp"
   7 #include "src/include/mc/mc.h"
   8 #include "src/kernel/activity/CommImpl.hpp"
   9 #include "src/kernel/activity/MutexImpl.hpp"
  10 #include "src/mc/ModelChecker.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_actor_.get()) && (r1->issuer != synchro2->dst_actor_.get()) &&
  75         simcall_comm_wait__get__timeout(r2) <= 0)
  76       return false;
  77
  78     if ((r1->call == SIMCALL_COMM_ISEND) && (synchro2->type == SIMIX_COMM_SEND) &&
  79         (synchro2->src_buff_ != simcall_comm_isend__get__src_buff(r1)) && simcall_comm_wait__get__timeout(r2) <= 0)
  80       return false;
  81
  82     if ((r1->call == SIMCALL_COMM_IRECV) && (synchro2->type == SIMIX_COMM_RECEIVE) &&
  83         (synchro2->dst_buff_ != simcall_comm_irecv__get__dst_buff(r1)) && simcall_comm_wait__get__timeout(r2) <= 0)
  84       return false;
  85   }
  86
  87   /* FIXME: the following rule assumes that the result of the
  88    * isend/irecv call is not stored in a buffer used in the
  89    * test call. */
  90 #if 0
  91   if((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
  92      &&  r2->call == SIMCALL_COMM_TEST)
  93      return false;
  94 #endif
  95
  96   if (r1->call == SIMCALL_COMM_WAIT && (r2->call == SIMCALL_COMM_WAIT || r2->call == SIMCALL_COMM_TEST) &&
  97       (synchro1->src_actor_.get() == nullptr || synchro1->dst_actor_.get() == nullptr))
  98     return false;
  99
 100   if (r1->call == SIMCALL_COMM_TEST &&
 101       (simcall_comm_test__get__comm(r1) == nullptr || synchro1->src_buff_ == nullptr || synchro1->dst_buff_ == nullptr))
 102     return false;
 103
 104   if (r1->call == SIMCALL_COMM_TEST && r2->call == SIMCALL_COMM_WAIT && synchro1->src_buff_ == synchro2->src_buff_ &&
 105       synchro1->dst_buff_ == synchro2->dst_buff_)
 106     return false;
 107
 108   if (r1->call == SIMCALL_COMM_WAIT && r2->call == SIMCALL_COMM_TEST && synchro1->src_buff_ != nullptr &&
 109       synchro1->dst_buff_ != nullptr && synchro2->src_buff_ != nullptr && synchro2->dst_buff_ != nullptr &&
 110       synchro1->dst_buff_ != synchro2->src_buff_ && synchro1->dst_buff_ != synchro2->dst_buff_ &&
 111       synchro2->dst_buff_ != synchro1->src_buff_)
 112     return false;
 113
 114   return true;
 115 }
 116
 117 // Those are internal_req
 118 bool request_depend(smx_simcall_t r1, smx_simcall_t r2)
 119 {
 120   if (r1->issuer == r2->issuer)
 121     return false;
 122
 123   /* Wait with timeout transitions are not considered by the independence theorem, thus we consider them as dependent with all other transitions */
 124   if ((r1->call == SIMCALL_COMM_WAIT && simcall_comm_wait__get__timeout(r1) > 0)
 125       || (r2->call == SIMCALL_COMM_WAIT
 126           && simcall_comm_wait__get__timeout(r2) > 0))
 127     return true;
 128
 129   if (r1->call != r2->call)
 130     return request_depend_asymmetric(r1, r2)
 131       && request_depend_asymmetric(r2, r1);
 132
 133   // Those are internal requests, we do not need indirection
 134   // because those objects are copies:
 135   simgrid::kernel::activity::CommImpl* synchro1 = MC_get_comm(r1);
 136   simgrid::kernel::activity::CommImpl* synchro2 = MC_get_comm(r2);
 137
 138   switch(r1->call) {
 139   case SIMCALL_COMM_ISEND:
 140     return simcall_comm_isend__get__mbox(r1)
 141       == simcall_comm_isend__get__mbox(r2);
 142   case SIMCALL_COMM_IRECV:
 143     return simcall_comm_irecv__get__mbox(r1)
 144       == simcall_comm_irecv__get__mbox(r2);
 145   case SIMCALL_COMM_WAIT:
 146     if (synchro1->src_buff_ == synchro2->src_buff_ && synchro1->dst_buff_ == synchro2->dst_buff_)
 147       return false;
 148     if (synchro1->src_buff_ != nullptr && synchro1->dst_buff_ != nullptr && synchro2->src_buff_ != nullptr &&
 149         synchro2->dst_buff_ != nullptr && synchro1->dst_buff_ != synchro2->src_buff_ &&
 150         synchro1->dst_buff_ != synchro2->dst_buff_ && synchro2->dst_buff_ != synchro1->src_buff_)
 151       return false;
 152     return true;
 153   default:
 154     return true;
 155   }
 156 }
 157
 158 }
 159 }
 160
 161 static char *pointer_to_string(void *pointer)
 162 {
 163
 164   if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
 165     return bprintf("%p", pointer);
 166
 167   return xbt_strdup("(verbose only)");
 168 }
 169
 170 static char *buff_size_to_string(size_t buff_size)
 171 {
 172
 173   if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
 174     return bprintf("%zu", buff_size);
 175
 176   return xbt_strdup("(verbose only)");
 177 }
 178
 179
 180 std::string simgrid::mc::request_to_string(smx_simcall_t req, int value, simgrid::mc::RequestType request_type)
 181 {
 182   xbt_assert(mc_model_checker != nullptr, "Must be called from MCer");
 183
 184   bool use_remote_comm = true;
 185   switch(request_type) {
 186   case simgrid::mc::RequestType::simix:
 187     use_remote_comm = true;
 188     break;
 189   case simgrid::mc::RequestType::executed:
 190   case simgrid::mc::RequestType::internal:
 191     use_remote_comm = false;
 192     break;
 193   default:
 194     THROW_IMPOSSIBLE;
 195   }
 196
 197   const char* type = nullptr;
 198   char *args = nullptr;
 199
 200   smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
 201
 202   switch (req->call) {
 203
 204   case SIMCALL_COMM_ISEND: {
 205     type = "iSend";
 206     char* p = pointer_to_string(simcall_comm_isend__get__src_buff(req));
 207     char* bs = buff_size_to_string(simcall_comm_isend__get__src_buff_size(req));
 208     if (issuer->host_)
 209       args = bprintf("src=(%ld)%s (%s), buff=%s, size=%s", issuer->pid_, MC_smx_actor_get_host_name(issuer),
 210                      MC_smx_actor_get_name(issuer), p, bs);
 211     else
 212       args = bprintf("src=(%ld)%s, buff=%s, size=%s", issuer->pid_, MC_smx_actor_get_name(issuer), p, bs);
 213     xbt_free(bs);
 214     xbt_free(p);
 215     break;
 216   }
 217
 218   case SIMCALL_COMM_IRECV: {
 219     size_t* remote_size = simcall_comm_irecv__get__dst_buff_size(req);
 220     size_t size = 0;
 221     if (remote_size)
 222       mc_model_checker->process().read_bytes(&size, sizeof(size),
 223         remote(remote_size));
 224
 225     type = "iRecv";
 226     char* p = pointer_to_string(simcall_comm_irecv__get__dst_buff(req));
 227     char* bs = buff_size_to_string(size);
 228     if (issuer->host_)
 229       args = bprintf("dst=(%ld)%s (%s), buff=%s, size=%s", issuer->pid_, MC_smx_actor_get_host_name(issuer),
 230                      MC_smx_actor_get_name(issuer), p, bs);
 231     else
 232       args = bprintf("dst=(%ld)%s, buff=%s, size=%s", issuer->pid_, MC_smx_actor_get_name(issuer), p, bs);
 233     xbt_free(bs);
 234     xbt_free(p);
 235     break;
 236   }
 237
 238   case SIMCALL_COMM_WAIT: {
 239     simgrid::kernel::activity::CommImpl* remote_act =
 240         static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(req));
 241     char* p;
 242     if (value == -1) {
 243       type = "WaitTimeout";
 244       p = pointer_to_string(remote_act);
 245       args = bprintf("comm=%s", p);
 246     } else {
 247       type = "Wait";
 248       p = pointer_to_string(remote_act);
 249
 250       simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
 251       simgrid::kernel::activity::CommImpl* act;
 252       if (use_remote_comm) {
 253         mc_model_checker->process().read(temp_synchro,
 254                                          remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 255         act = temp_synchro.getBuffer();
 256       } else
 257         act = remote_act;
 258
 259       smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_actor_.get()));
 260       smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_actor_.get()));
 261       args =
 262           bprintf("comm=%s [(%ld)%s (%s)-> (%ld)%s (%s)]", p, src_proc ? src_proc->pid_ : 0,
 263                   src_proc ? MC_smx_actor_get_host_name(src_proc) : "", src_proc ? MC_smx_actor_get_name(src_proc) : "",
 264                   dst_proc ? dst_proc->pid_ : 0, dst_proc ? MC_smx_actor_get_host_name(dst_proc) : "",
 265                   dst_proc ? MC_smx_actor_get_name(dst_proc) : "");
 266     }
 267     xbt_free(p);
 268     break;
 269   }
 270
 271   case SIMCALL_COMM_TEST: {
 272     simgrid::kernel::activity::CommImpl* remote_act =
 273         static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_test__getraw__comm(req));
 274     simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
 275     simgrid::kernel::activity::CommImpl* act;
 276     if (use_remote_comm) {
 277       mc_model_checker->process().read(temp_synchro,
 278                                        remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 279       act = temp_synchro.getBuffer();
 280     } else
 281       act = remote_act;
 282
 283     char* p;
 284     if (act->src_actor_.get() == nullptr || act->dst_actor_.get() == nullptr) {
 285       type = "Test FALSE";
 286       p = pointer_to_string(remote_act);
 287       args = bprintf("comm=%s", p);
 288     } else {
 289       type = "Test TRUE";
 290       p = pointer_to_string(remote_act);
 291
 292       smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_actor_.get()));
 293       smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_actor_.get()));
 294       args = bprintf("comm=%s [(%ld)%s (%s) -> (%ld)%s (%s)]", p, src_proc->pid_, MC_smx_actor_get_name(src_proc),
 295                      MC_smx_actor_get_host_name(src_proc), dst_proc->pid_, MC_smx_actor_get_name(dst_proc),
 296                      MC_smx_actor_get_host_name(dst_proc));
 297     }
 298     xbt_free(p);
 299     break;
 300   }
 301
 302   case SIMCALL_COMM_WAITANY: {
 303     type = "WaitAny";
 304     s_xbt_dynar_t comms;
 305     mc_model_checker->process().read_bytes(
 306       &comms, sizeof(comms), remote(simcall_comm_waitany__get__comms(req)));
 307     if (not xbt_dynar_is_empty(&comms)) {
 308       smx_activity_t remote_sync;
 309       read_element(mc_model_checker->process(),
 310         &remote_sync, remote(simcall_comm_waitany__get__comms(req)), value,
 311         sizeof(remote_sync));
 312       char* p = pointer_to_string(remote_sync.get());
 313       args = bprintf("comm=%s (%d of %lu)",
 314         p, value + 1, xbt_dynar_length(&comms));
 315       xbt_free(p);
 316     } else
 317       args = bprintf("comm at idx %d", value);
 318     break;
 319   }
 320
 321   case SIMCALL_COMM_TESTANY:
 322     if (value == -1) {
 323       type = "TestAny FALSE";
 324       args = xbt_strdup("-");
 325     } else {
 326       type = "TestAny";
 327       args =
 328           bprintf("(%d of %zu)", value + 1,
 329                     simcall_comm_testany__get__count(req));
 330     }
 331     break;
 332
 333   case SIMCALL_MUTEX_TRYLOCK:
 334   case SIMCALL_MUTEX_LOCK: {
 335     if (req->call == SIMCALL_MUTEX_LOCK)
 336       type = "Mutex LOCK";
 337     else
 338       type = "Mutex TRYLOCK";
 339
 340     simgrid::mc::Remote<simgrid::kernel::activity::MutexImpl> mutex;
 341     mc_model_checker->process().read_bytes(mutex.getBuffer(), sizeof(mutex),
 342       remote(
 343         req->call == SIMCALL_MUTEX_LOCK
 344         ? simcall_mutex_lock__get__mutex(req)
 345         : simcall_mutex_trylock__get__mutex(req)
 346       ));
 347     args =
 348         bprintf("locked = %d, owner = %d, sleeping = n/a", mutex.getBuffer()->locked,
 349                 mutex.getBuffer()->owner != nullptr
 350                     ? (int)mc_model_checker->process().resolveActor(simgrid::mc::remote(mutex.getBuffer()->owner))->pid_
 351                     : -1);
 352     break;
 353   }
 354
 355   case SIMCALL_MC_RANDOM:
 356     type = "MC_RANDOM";
 357     args = bprintf("%d", value);
 358     break;
 359
 360   default:
 361     type = SIMIX_simcall_name(req->call);
 362     args = bprintf("??");
 363     break;
 364   }
 365
 366   std::string str;
 367   if (args != nullptr)
 368     str = simgrid::xbt::string_printf("[(%ld)%s (%s)] %s(%s)", issuer->pid_, MC_smx_actor_get_host_name(issuer),
 369                                       MC_smx_actor_get_name(issuer), type, args);
 370   else
 371     str = simgrid::xbt::string_printf("[(%ld)%s (%s)] %s ", issuer->pid_, MC_smx_actor_get_host_name(issuer),
 372                                       MC_smx_actor_get_name(issuer), type);
 373   xbt_free(args);
 374   return str;
 375 }
 376
 377 namespace simgrid {
 378 namespace mc {
 379
 380 bool request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx)
 381 {
 382   simgrid::kernel::activity::ActivityImpl* remote_act = nullptr;
 383   switch (req->call) {
 384
 385   case SIMCALL_COMM_WAIT:
 386     /* FIXME: check also that src and dst processes are not suspended */
 387     remote_act = simcall_comm_wait__getraw__comm(req);
 388     break;
 389
 390   case SIMCALL_COMM_WAITANY:
 391     read_element(mc_model_checker->process(), &remote_act, remote(simcall_comm_waitany__getraw__comms(req)), idx,
 392                  sizeof(remote_act));
 393     break;
 394
 395   case SIMCALL_COMM_TESTANY:
 396     remote_act = mc_model_checker->process().read(remote(simcall_comm_testany__getraw__comms(req) + idx));
 397     break;
 398
 399   default:
 400     return true;
 401   }
 402
 403   simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 404   mc_model_checker->process().read(temp_comm, remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 405   simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
 406   return comm->src_actor_.get() && comm->dst_actor_.get();
 407 }
 408
 409
 410 static const char* colors[] = {
 411   "blue",
 412   "red",
 413   "green3",
 414   "goldenrod",
 415   "brown",
 416   "purple",
 417   "magenta",
 418   "turquoise4",
 419   "gray25",
 420   "forestgreen",
 421   "hotpink",
 422   "lightblue",
 423   "tan",
 424 };
 425
 426 static inline const char* get_color(int id)
 427 {
 428   return colors[id % (sizeof(colors) / sizeof(colors[0])) ];
 429 }
 430
 431 std::string request_get_dot_output(smx_simcall_t req, int value)
 432 {
 433   std::string label;
 434
 435   const smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
 436
 437   switch (req->call) {
 438   case SIMCALL_COMM_ISEND:
 439     if (issuer->host_)
 440       label = simgrid::xbt::string_printf("[(%ld)%s] iSend", issuer->pid_, MC_smx_actor_get_host_name(issuer));
 441     else
 442       label = bprintf("[(%ld)] iSend", issuer->pid_);
 443     break;
 444
 445   case SIMCALL_COMM_IRECV:
 446     if (issuer->host_)
 447       label = simgrid::xbt::string_printf("[(%ld)%s] iRecv", issuer->pid_, MC_smx_actor_get_host_name(issuer));
 448     else
 449       label = simgrid::xbt::string_printf("[(%ld)] iRecv", issuer->pid_);
 450     break;
 451
 452   case SIMCALL_COMM_WAIT:
 453     if (value == -1) {
 454       if (issuer->host_)
 455         label = simgrid::xbt::string_printf("[(%ld)%s] WaitTimeout", issuer->pid_, MC_smx_actor_get_host_name(issuer));
 456       else
 457         label = simgrid::xbt::string_printf("[(%ld)] WaitTimeout", issuer->pid_);
 458     } else {
 459       simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_wait__getraw__comm(req);
 460       simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 461       mc_model_checker->process().read(temp_comm,
 462                                        remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 463       simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
 464
 465       smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->src_actor_.get()));
 466       smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->dst_actor_.get()));
 467       if (issuer->host_)
 468         label = simgrid::xbt::string_printf("[(%ld)%s] Wait [(%ld)->(%ld)]", issuer->pid_,
 469                                             MC_smx_actor_get_host_name(issuer), src_proc ? src_proc->pid_ : 0,
 470                                             dst_proc ? dst_proc->pid_ : 0);
 471       else
 472         label = simgrid::xbt::string_printf("[(%ld)] Wait [(%ld)->(%ld)]", issuer->pid_, src_proc ? src_proc->pid_ : 0,
 473                                             dst_proc ? dst_proc->pid_ : 0);
 474     }
 475     break;
 476
 477   case SIMCALL_COMM_TEST: {
 478     simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_test__getraw__comm(req);
 479     simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 480     mc_model_checker->process().read(temp_comm, remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 481     simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
 482     if (comm->src_actor_.get() == nullptr || comm->dst_actor_.get() == nullptr) {
 483       if (issuer->host_)
 484         label = simgrid::xbt::string_printf("[(%ld)%s] Test FALSE", issuer->pid_, MC_smx_actor_get_host_name(issuer));
 485       else
 486         label = bprintf("[(%ld)] Test FALSE", issuer->pid_);
 487     } else {
 488       if (issuer->host_)
 489         label = simgrid::xbt::string_printf("[(%ld)%s] Test TRUE", issuer->pid_, MC_smx_actor_get_host_name(issuer));
 490       else
 491         label = simgrid::xbt::string_printf("[(%ld)] Test TRUE", issuer->pid_);
 492     }
 493     break;
 494   }
 495
 496   case SIMCALL_COMM_WAITANY: {
 497     unsigned long comms_size = read_length(
 498       mc_model_checker->process(), remote(simcall_comm_waitany__get__comms(req)));
 499     if (issuer->host_)
 500       label = simgrid::xbt::string_printf("[(%ld)%s] WaitAny [%d of %lu]", issuer->pid_,
 501                                           MC_smx_actor_get_host_name(issuer), value + 1, comms_size);
 502     else
 503       label = simgrid::xbt::string_printf("[(%ld)] WaitAny [%d of %lu]", issuer->pid_, value + 1, comms_size);
 504     break;
 505   }
 506
 507   case SIMCALL_COMM_TESTANY:
 508     if (value == -1) {
 509       if (issuer->host_)
 510         label =
 511             simgrid::xbt::string_printf("[(%ld)%s] TestAny FALSE", issuer->pid_, MC_smx_actor_get_host_name(issuer));
 512       else
 513         label = simgrid::xbt::string_printf("[(%ld)] TestAny FALSE", issuer->pid_);
 514     } else {
 515       if (issuer->host_)
 516         label = simgrid::xbt::string_printf("[(%ld)%s] TestAny TRUE [%d of %lu]", issuer->pid_,
 517                                             MC_smx_actor_get_host_name(issuer), value + 1,
 518                                             simcall_comm_testany__get__count(req));
 519       else
 520         label = simgrid::xbt::string_printf("[(%ld)] TestAny TRUE [%d of %lu]", issuer->pid_, value + 1,
 521                                             simcall_comm_testany__get__count(req));
 522     }
 523     break;
 524
 525   case SIMCALL_MUTEX_TRYLOCK:
 526     label = simgrid::xbt::string_printf("[(%ld)] Mutex TRYLOCK", issuer->pid_);
 527     break;
 528
 529   case SIMCALL_MUTEX_LOCK:
 530     label = simgrid::xbt::string_printf("[(%ld)] Mutex LOCK", issuer->pid_);
 531     break;
 532
 533   case SIMCALL_MC_RANDOM:
 534     if (issuer->host_)
 535       label = simgrid::xbt::string_printf("[(%ld)%s] MC_RANDOM (%d)", issuer->pid_, MC_smx_actor_get_host_name(issuer),
 536                                           value);
 537     else
 538       label = simgrid::xbt::string_printf("[(%ld)] MC_RANDOM (%d)", issuer->pid_, value);
 539     break;
 540
 541   default:
 542     THROW_UNIMPLEMENTED;
 543   }
 544
 545   const char* color = get_color(issuer->pid_ - 1);
 546   return  simgrid::xbt::string_printf(
 547         "label = \"%s\", color = %s, fontcolor = %s", label.c_str(),
 548         color, color);
 549 }
 550
 551 }
 552 }