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
  13 using simgrid::mc::remote;
  14
  15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_request, mc,
  16                                 "Logging specific to MC (request)");
  17
  18 static char *pointer_to_string(void *pointer);
  19 static char *buff_size_to_string(size_t size);
  20
  21 static inline simgrid::kernel::activity::CommImpl* MC_get_comm(smx_simcall_t r)
  22 {
  23   switch (r->call_) {
  24     case SIMCALL_COMM_WAIT:
  25       return static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(r));
  26     case SIMCALL_COMM_TEST:
  27       return static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_test__getraw__comm(r));
  28     default:
  29       return nullptr;
  30   }
  31 }
  32
  33 static inline
  34 smx_mailbox_t MC_get_mbox(smx_simcall_t r)
  35 {
  36   switch (r->call_) {
  37     case SIMCALL_COMM_ISEND:
  38       return simcall_comm_isend__get__mbox(r);
  39     case SIMCALL_COMM_IRECV:
  40       return simcall_comm_irecv__get__mbox(r);
  41     default:
  42       return nullptr;
  43   }
  44 }
  45
  46 namespace simgrid {
  47 namespace mc {
  48
  49 // Does half the job
  50 static inline
  51 bool request_depend_asymmetric(smx_simcall_t r1, smx_simcall_t r2)
  52 {
  53   if (r1->call_ == SIMCALL_COMM_ISEND && r2->call_ == SIMCALL_COMM_IRECV)
  54     return false;
  55
  56   if (r1->call_ == SIMCALL_COMM_IRECV && r2->call_ == SIMCALL_COMM_ISEND)
  57     return false;
  58
  59   // Those are internal requests, we do not need indirection
  60   // because those objects are copies:
  61   simgrid::kernel::activity::CommImpl* synchro1 = MC_get_comm(r1);
  62   simgrid::kernel::activity::CommImpl* synchro2 = MC_get_comm(r2);
  63
  64   if ((r1->call_ == SIMCALL_COMM_ISEND || r1->call_ == SIMCALL_COMM_IRECV) && r2->call_ == SIMCALL_COMM_WAIT) {
  65
  66     smx_mailbox_t mbox = MC_get_mbox(r1);
  67
  68     if (mbox != synchro2->mbox_cpy
  69         && simcall_comm_wait__get__timeout(r2) <= 0)
  70       return false;
  71
  72     if ((r1->issuer_ != synchro2->src_actor_.get()) && (r1->issuer_ != synchro2->dst_actor_.get()) &&
  73         simcall_comm_wait__get__timeout(r2) <= 0)
  74       return false;
  75
  76     if ((r1->call_ == SIMCALL_COMM_ISEND) && (synchro2->type_ == kernel::activity::CommImpl::Type::SEND) &&
  77         (synchro2->src_buff_ != simcall_comm_isend__get__src_buff(r1)) && simcall_comm_wait__get__timeout(r2) <= 0)
  78       return false;
  79
  80     if ((r1->call_ == SIMCALL_COMM_IRECV) && (synchro2->type_ == kernel::activity::CommImpl::Type::RECEIVE) &&
  81         (synchro2->dst_buff_ != simcall_comm_irecv__get__dst_buff(r1)) && simcall_comm_wait__get__timeout(r2) <= 0)
  82       return false;
  83   }
  84
  85   /* FIXME: the following rule assumes that the result of the
  86    * isend/irecv call is not stored in a buffer used in the
  87    * test call. */
  88 #if 0
  89   if((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
  90      &&  r2->call == SIMCALL_COMM_TEST)
  91      return false;
  92 #endif
  93
  94   if (r1->call_ == SIMCALL_COMM_WAIT && (r2->call_ == SIMCALL_COMM_WAIT || r2->call_ == SIMCALL_COMM_TEST) &&
  95       (synchro1->src_actor_.get() == nullptr || synchro1->dst_actor_.get() == nullptr))
  96     return false;
  97
  98   if (r1->call_ == SIMCALL_COMM_TEST &&
  99       (simcall_comm_test__get__comm(r1) == nullptr || synchro1->src_buff_ == nullptr || synchro1->dst_buff_ == nullptr))
 100     return false;
 101
 102   if (r1->call_ == SIMCALL_COMM_TEST && r2->call_ == SIMCALL_COMM_WAIT && synchro1->src_buff_ == synchro2->src_buff_ &&
 103       synchro1->dst_buff_ == synchro2->dst_buff_)
 104     return false;
 105
 106   if (r1->call_ == SIMCALL_COMM_WAIT && r2->call_ == SIMCALL_COMM_TEST && synchro1->src_buff_ != nullptr &&
 107       synchro1->dst_buff_ != nullptr && synchro2->src_buff_ != nullptr && synchro2->dst_buff_ != nullptr &&
 108       synchro1->dst_buff_ != synchro2->src_buff_ && synchro1->dst_buff_ != synchro2->dst_buff_ &&
 109       synchro2->dst_buff_ != synchro1->src_buff_)
 110     return false;
 111
 112   return true;
 113 }
 114
 115 // Those are internal_req
 116 bool request_depend(smx_simcall_t req1, smx_simcall_t req2)
 117 {
 118   if (req1->issuer_ == req2->issuer_)
 119     return false;
 120
 121   /* Wait with timeout transitions are not considered by the independence theorem, thus we consider them as dependent with all other transitions */
 122   if ((req1->call_ == SIMCALL_COMM_WAIT && simcall_comm_wait__get__timeout(req1) > 0) ||
 123       (req2->call_ == SIMCALL_COMM_WAIT && simcall_comm_wait__get__timeout(req2) > 0))
 124     return true;
 125
 126   if (req1->call_ != req2->call_)
 127     return request_depend_asymmetric(req1, req2) && request_depend_asymmetric(req2, req1);
 128
 129   // Those are internal requests, we do not need indirection
 130   // because those objects are copies:
 131   simgrid::kernel::activity::CommImpl* synchro1 = MC_get_comm(req1);
 132   simgrid::kernel::activity::CommImpl* synchro2 = MC_get_comm(req2);
 133
 134   switch (req1->call_) {
 135     case SIMCALL_COMM_ISEND:
 136       return simcall_comm_isend__get__mbox(req1) == simcall_comm_isend__get__mbox(req2);
 137     case SIMCALL_COMM_IRECV:
 138       return simcall_comm_irecv__get__mbox(req1) == simcall_comm_irecv__get__mbox(req2);
 139     case SIMCALL_COMM_WAIT:
 140       if (synchro1->src_buff_ == synchro2->src_buff_ && synchro1->dst_buff_ == synchro2->dst_buff_)
 141         return false;
 142       if (synchro1->src_buff_ != nullptr && synchro1->dst_buff_ != nullptr && synchro2->src_buff_ != nullptr &&
 143           synchro2->dst_buff_ != nullptr && synchro1->dst_buff_ != synchro2->src_buff_ &&
 144           synchro1->dst_buff_ != synchro2->dst_buff_ && synchro2->dst_buff_ != synchro1->src_buff_)
 145         return false;
 146       return true;
 147     default:
 148       return true;
 149   }
 150 }
 151
 152 }
 153 }
 154
 155 static char *pointer_to_string(void *pointer)
 156 {
 157
 158   if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
 159     return bprintf("%p", pointer);
 160
 161   return xbt_strdup("(verbose only)");
 162 }
 163
 164 static char *buff_size_to_string(size_t buff_size)
 165 {
 166
 167   if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
 168     return bprintf("%zu", buff_size);
 169
 170   return xbt_strdup("(verbose only)");
 171 }
 172
 173
 174 std::string simgrid::mc::request_to_string(smx_simcall_t req, int value, simgrid::mc::RequestType request_type)
 175 {
 176   xbt_assert(mc_model_checker != nullptr, "Must be called from MCer");
 177
 178   if (req->transition_ != nullptr)
 179     return req->transition_->to_string();
 180
 181   bool use_remote_comm = true;
 182   switch(request_type) {
 183   case simgrid::mc::RequestType::simix:
 184     use_remote_comm = true;
 185     break;
 186   case simgrid::mc::RequestType::executed:
 187   case simgrid::mc::RequestType::internal:
 188     use_remote_comm = false;
 189     break;
 190   default:
 191     THROW_IMPOSSIBLE;
 192   }
 193
 194   const char* type = nullptr;
 195   char *args = nullptr;
 196
 197   smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
 198
 199   switch (req->call_) {
 200
 201     case SIMCALL_COMM_ISEND: {
 202       type     = "iSend";
 203       char* p  = pointer_to_string(simcall_comm_isend__get__src_buff(req));
 204       char* bs = buff_size_to_string(simcall_comm_isend__get__src_buff_size(req));
 205       if (issuer->get_host())
 206         args = bprintf("src=(%ld)%s (%s), buff=%s, size=%s", issuer->get_pid(), MC_smx_actor_get_host_name(issuer),
 207                        MC_smx_actor_get_name(issuer), p, bs);
 208       else
 209         args = bprintf("src=(%ld)%s, buff=%s, size=%s", issuer->get_pid(), MC_smx_actor_get_name(issuer), p, bs);
 210       xbt_free(bs);
 211       xbt_free(p);
 212       break;
 213     }
 214
 215     case SIMCALL_COMM_IRECV: {
 216       size_t* remote_size = simcall_comm_irecv__get__dst_buff_size(req);
 217       size_t size         = 0;
 218       if (remote_size)
 219         mc_model_checker->process().read_bytes(&size, sizeof(size), remote(remote_size));
 220
 221       type     = "iRecv";
 222       char* p  = pointer_to_string(simcall_comm_irecv__get__dst_buff(req));
 223       char* bs = buff_size_to_string(size);
 224       if (issuer->get_host())
 225         args = bprintf("dst=(%ld)%s (%s), buff=%s, size=%s", issuer->get_pid(), MC_smx_actor_get_host_name(issuer),
 226                        MC_smx_actor_get_name(issuer), p, bs);
 227       else
 228         args = bprintf("dst=(%ld)%s, buff=%s, size=%s", issuer->get_pid(), MC_smx_actor_get_name(issuer), p, bs);
 229       xbt_free(bs);
 230       xbt_free(p);
 231       break;
 232     }
 233
 234     case SIMCALL_COMM_WAIT: {
 235       simgrid::kernel::activity::CommImpl* remote_act =
 236           static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(req));
 237       char* p;
 238       if (value == -1) {
 239         type = "WaitTimeout";
 240         p    = pointer_to_string(remote_act);
 241         args = bprintf("comm=%s", p);
 242       } else {
 243         type = "Wait";
 244         p    = pointer_to_string(remote_act);
 245
 246         simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
 247         simgrid::kernel::activity::CommImpl* act;
 248         if (use_remote_comm) {
 249           mc_model_checker->process().read(temp_synchro,
 250                                            remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 251           act = temp_synchro.get_buffer();
 252         } else
 253           act = remote_act;
 254
 255         smx_actor_t src_proc = mc_model_checker->process().resolve_actor(simgrid::mc::remote(act->src_actor_.get()));
 256         smx_actor_t dst_proc = mc_model_checker->process().resolve_actor(simgrid::mc::remote(act->dst_actor_.get()));
 257         args                 = bprintf("comm=%s [(%ld)%s (%s)-> (%ld)%s (%s)]", p, src_proc ? src_proc->get_pid() : 0,
 258                        src_proc ? MC_smx_actor_get_host_name(src_proc) : "",
 259                        src_proc ? MC_smx_actor_get_name(src_proc) : "", dst_proc ? dst_proc->get_pid() : 0,
 260                        dst_proc ? MC_smx_actor_get_host_name(dst_proc) : "",
 261                        dst_proc ? MC_smx_actor_get_name(dst_proc) : "");
 262       }
 263       xbt_free(p);
 264       break;
 265     }
 266
 267     case SIMCALL_COMM_TEST: {
 268       simgrid::kernel::activity::CommImpl* remote_act =
 269           static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_test__getraw__comm(req));
 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.get_buffer();
 276       } else
 277         act = remote_act;
 278
 279       char* p;
 280       if (act->src_actor_.get() == nullptr || act->dst_actor_.get() == nullptr) {
 281         type = "Test FALSE";
 282         p    = pointer_to_string(remote_act);
 283         args = bprintf("comm=%s", p);
 284       } else {
 285         type = "Test TRUE";
 286         p    = pointer_to_string(remote_act);
 287
 288         smx_actor_t src_proc = mc_model_checker->process().resolve_actor(simgrid::mc::remote(act->src_actor_.get()));
 289         smx_actor_t dst_proc = mc_model_checker->process().resolve_actor(simgrid::mc::remote(act->dst_actor_.get()));
 290         args                 = bprintf("comm=%s [(%ld)%s (%s) -> (%ld)%s (%s)]", p, src_proc->get_pid(),
 291                        MC_smx_actor_get_name(src_proc), MC_smx_actor_get_host_name(src_proc), dst_proc->get_pid(),
 292                        MC_smx_actor_get_name(dst_proc), MC_smx_actor_get_host_name(dst_proc));
 293       }
 294       xbt_free(p);
 295       break;
 296     }
 297
 298     case SIMCALL_COMM_WAITANY: {
 299       type         = "WaitAny";
 300       size_t count = simcall_comm_waitany__get__count(req);
 301       if (count > 0) {
 302         simgrid::kernel::activity::CommImpl* remote_sync;
 303         remote_sync = mc_model_checker->process().read(remote(simcall_comm_waitany__get__comms(req) + value));
 304         char* p     = pointer_to_string(remote_sync);
 305         args        = bprintf("comm=%s (%d of %zu)", p, value + 1, count);
 306         xbt_free(p);
 307       } else
 308         args = bprintf("comm at idx %d", value);
 309       break;
 310     }
 311
 312     case SIMCALL_COMM_TESTANY:
 313       if (value == -1) {
 314         type = "TestAny FALSE";
 315         args = xbt_strdup("-");
 316       } else {
 317         type = "TestAny";
 318         args = bprintf("(%d of %zu)", value + 1, simcall_comm_testany__get__count(req));
 319       }
 320       break;
 321
 322     case SIMCALL_MUTEX_TRYLOCK:
 323     case SIMCALL_MUTEX_LOCK: {
 324       if (req->call_ == SIMCALL_MUTEX_LOCK)
 325         type = "Mutex LOCK";
 326       else
 327         type = "Mutex TRYLOCK";
 328
 329       simgrid::mc::Remote<simgrid::kernel::activity::MutexImpl> mutex;
 330       mc_model_checker->process().read_bytes(mutex.get_buffer(), sizeof(mutex),
 331                                              remote(req->call_ == SIMCALL_MUTEX_LOCK
 332                                                         ? simcall_mutex_lock__get__mutex(req)
 333                                                         : simcall_mutex_trylock__get__mutex(req)));
 334       args = bprintf("locked = %d, owner = %d, sleeping = n/a", mutex.get_buffer()->is_locked(),
 335                      mutex.get_buffer()->owner_ != nullptr
 336                          ? (int)mc_model_checker->process()
 337                                .resolve_actor(simgrid::mc::remote(mutex.get_buffer()->owner_))
 338                                ->get_pid()
 339                          : -1);
 340       break;
 341     }
 342
 343     case SIMCALL_MC_RANDOM:
 344       type = "MC_RANDOM";
 345       args = bprintf("%d", value);
 346       break;
 347
 348     default:
 349       type = SIMIX_simcall_name(req->call_);
 350       args = bprintf("??");
 351       break;
 352   }
 353
 354   std::string str;
 355   if (args != nullptr)
 356     str = simgrid::xbt::string_printf("[(%ld)%s (%s)] %s(%s)", issuer->get_pid(), MC_smx_actor_get_host_name(issuer),
 357                                       MC_smx_actor_get_name(issuer), type, args);
 358   else
 359     str = simgrid::xbt::string_printf("[(%ld)%s (%s)] %s ", issuer->get_pid(), MC_smx_actor_get_host_name(issuer),
 360                                       MC_smx_actor_get_name(issuer), type);
 361   xbt_free(args);
 362   return str;
 363 }
 364
 365 namespace simgrid {
 366 namespace mc {
 367
 368 bool request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx)
 369 {
 370   simgrid::kernel::activity::CommImpl* remote_act = nullptr;
 371   switch (req->call_) {
 372
 373     case SIMCALL_COMM_WAIT:
 374       /* FIXME: check also that src and dst processes are not suspended */
 375       remote_act = simcall_comm_wait__getraw__comm(req);
 376       break;
 377
 378     case SIMCALL_COMM_WAITANY:
 379       remote_act = mc_model_checker->process().read(remote(simcall_comm_testany__get__comms(req) + idx));
 380       break;
 381
 382     case SIMCALL_COMM_TESTANY:
 383       remote_act = mc_model_checker->process().read(remote(simcall_comm_testany__get__comms(req) + idx));
 384       break;
 385
 386     default:
 387       return true;
 388   }
 389
 390   simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 391   mc_model_checker->process().read(temp_comm, remote(remote_act));
 392   simgrid::kernel::activity::CommImpl* comm = temp_comm.get_buffer();
 393   return comm->src_actor_.get() && comm->dst_actor_.get();
 394 }
 395
 396
 397 static const char* colors[] = {
 398   "blue",
 399   "red",
 400   "green3",
 401   "goldenrod",
 402   "brown",
 403   "purple",
 404   "magenta",
 405   "turquoise4",
 406   "gray25",
 407   "forestgreen",
 408   "hotpink",
 409   "lightblue",
 410   "tan",
 411 };
 412
 413 static inline const char* get_color(int id)
 414 {
 415   return colors[id % (sizeof(colors) / sizeof(colors[0])) ];
 416 }
 417
 418 std::string request_get_dot_output(smx_simcall_t req, int value)
 419 {
 420   const smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
 421   const char* color        = get_color(issuer->get_pid() - 1);
 422
 423   if (req->transition_ != nullptr)
 424     return simgrid::xbt::string_printf("label = \"%s\", color = %s, fontcolor = %s",
 425                                        req->transition_->dot_label().c_str(), color, color);
 426
 427   std::string label;
 428
 429   switch (req->call_) {
 430     case SIMCALL_COMM_ISEND:
 431       if (issuer->get_host())
 432         label = simgrid::xbt::string_printf("[(%ld)%s] iSend", issuer->get_pid(), MC_smx_actor_get_host_name(issuer));
 433       else
 434         label = bprintf("[(%ld)] iSend", issuer->get_pid());
 435       break;
 436
 437     case SIMCALL_COMM_IRECV:
 438       if (issuer->get_host())
 439         label = simgrid::xbt::string_printf("[(%ld)%s] iRecv", issuer->get_pid(), MC_smx_actor_get_host_name(issuer));
 440       else
 441         label = simgrid::xbt::string_printf("[(%ld)] iRecv", issuer->get_pid());
 442       break;
 443
 444     case SIMCALL_COMM_WAIT:
 445       if (value == -1) {
 446         if (issuer->get_host())
 447           label = simgrid::xbt::string_printf("[(%ld)%s] WaitTimeout", issuer->get_pid(),
 448                                               MC_smx_actor_get_host_name(issuer));
 449         else
 450           label = simgrid::xbt::string_printf("[(%ld)] WaitTimeout", issuer->get_pid());
 451       } else {
 452         simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_wait__getraw__comm(req);
 453         simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 454         mc_model_checker->process().read(temp_comm,
 455                                          remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 456         simgrid::kernel::activity::CommImpl* comm = temp_comm.get_buffer();
 457
 458         smx_actor_t src_proc = mc_model_checker->process().resolve_actor(simgrid::mc::remote(comm->src_actor_.get()));
 459         smx_actor_t dst_proc = mc_model_checker->process().resolve_actor(simgrid::mc::remote(comm->dst_actor_.get()));
 460         if (issuer->get_host())
 461           label = simgrid::xbt::string_printf("[(%ld)%s] Wait [(%ld)->(%ld)]", issuer->get_pid(),
 462                                               MC_smx_actor_get_host_name(issuer), src_proc ? src_proc->get_pid() : 0,
 463                                               dst_proc ? dst_proc->get_pid() : 0);
 464         else
 465           label = simgrid::xbt::string_printf("[(%ld)] Wait [(%ld)->(%ld)]", issuer->get_pid(),
 466                                               src_proc ? src_proc->get_pid() : 0, dst_proc ? dst_proc->get_pid() : 0);
 467       }
 468       break;
 469
 470     case SIMCALL_COMM_TEST: {
 471       simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_test__getraw__comm(req);
 472       simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
 473       mc_model_checker->process().read(temp_comm,
 474                                        remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
 475       simgrid::kernel::activity::CommImpl* comm = temp_comm.get_buffer();
 476       if (comm->src_actor_.get() == nullptr || comm->dst_actor_.get() == nullptr) {
 477         if (issuer->get_host())
 478           label = simgrid::xbt::string_printf("[(%ld)%s] Test FALSE", issuer->get_pid(),
 479                                               MC_smx_actor_get_host_name(issuer));
 480         else
 481           label = bprintf("[(%ld)] Test FALSE", issuer->get_pid());
 482       } else {
 483         if (issuer->get_host())
 484           label =
 485               simgrid::xbt::string_printf("[(%ld)%s] Test TRUE", issuer->get_pid(), MC_smx_actor_get_host_name(issuer));
 486         else
 487           label = simgrid::xbt::string_printf("[(%ld)] Test TRUE", issuer->get_pid());
 488       }
 489       break;
 490     }
 491
 492     case SIMCALL_COMM_WAITANY: {
 493       size_t comms_size = simcall_comm_waitany__get__count(req);
 494       if (issuer->get_host())
 495         label = simgrid::xbt::string_printf("[(%ld)%s] WaitAny [%d of %zu]", issuer->get_pid(),
 496                                             MC_smx_actor_get_host_name(issuer), value + 1, comms_size);
 497       else
 498         label = simgrid::xbt::string_printf("[(%ld)] WaitAny [%d of %zu]", issuer->get_pid(), value + 1, comms_size);
 499       break;
 500     }
 501
 502     case SIMCALL_COMM_TESTANY:
 503       if (value == -1) {
 504         if (issuer->get_host())
 505           label = simgrid::xbt::string_printf("[(%ld)%s] TestAny FALSE", issuer->get_pid(),
 506                                               MC_smx_actor_get_host_name(issuer));
 507         else
 508           label = simgrid::xbt::string_printf("[(%ld)] TestAny FALSE", issuer->get_pid());
 509       } else {
 510         if (issuer->get_host())
 511           label = simgrid::xbt::string_printf("[(%ld)%s] TestAny TRUE [%d of %lu]", issuer->get_pid(),
 512                                               MC_smx_actor_get_host_name(issuer), value + 1,
 513                                               simcall_comm_testany__get__count(req));
 514         else
 515           label = simgrid::xbt::string_printf("[(%ld)] TestAny TRUE [%d of %lu]", issuer->get_pid(), value + 1,
 516                                               simcall_comm_testany__get__count(req));
 517       }
 518       break;
 519
 520     case SIMCALL_MUTEX_TRYLOCK:
 521       label = simgrid::xbt::string_printf("[(%ld)] Mutex TRYLOCK", issuer->get_pid());
 522       break;
 523
 524     case SIMCALL_MUTEX_LOCK:
 525       label = simgrid::xbt::string_printf("[(%ld)] Mutex LOCK", issuer->get_pid());
 526       break;
 527
 528     case SIMCALL_MC_RANDOM:
 529       if (issuer->get_host())
 530         label = simgrid::xbt::string_printf("[(%ld)%s] MC_RANDOM (%d)", issuer->get_pid(),
 531                                             MC_smx_actor_get_host_name(issuer), value);
 532       else
 533         label = simgrid::xbt::string_printf("[(%ld)] MC_RANDOM (%d)", issuer->get_pid(), value);
 534       break;
 535
 536     default:
 537       THROW_UNIMPLEMENTED;
 538   }
 539
 540   return  simgrid::xbt::string_printf(
 541         "label = \"%s\", color = %s, fontcolor = %s", label.c_str(),
 542         color, color);
 543 }
 544
 545 }
 546 }