1 /* Copyright (c) 2008-2019. The SimGrid Team. All rights reserved. */
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. */
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"
13 using simgrid::mc::remote;
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_request, mc,
16 "Logging specific to MC (request)");
18 static char *pointer_to_string(void *pointer);
19 static char *buff_size_to_string(size_t size);
21 static inline simgrid::kernel::activity::CommImpl* MC_get_comm(smx_simcall_t r)
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));
34 smx_mailbox_t MC_get_mbox(smx_simcall_t r)
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);
51 bool request_depend_asymmetric(smx_simcall_t r1, smx_simcall_t r2)
53 if (r1->call == SIMCALL_COMM_ISEND && r2->call == SIMCALL_COMM_IRECV)
56 if (r1->call == SIMCALL_COMM_IRECV && r2->call == SIMCALL_COMM_ISEND)
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);
64 if ((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
65 && r2->call == SIMCALL_COMM_WAIT) {
67 smx_mailbox_t mbox = MC_get_mbox(r1);
69 if (mbox != synchro2->mbox_cpy
70 && simcall_comm_wait__get__timeout(r2) <= 0)
73 if ((r1->issuer != synchro2->src_actor_.get()) && (r1->issuer != synchro2->dst_actor_.get()) &&
74 simcall_comm_wait__get__timeout(r2) <= 0)
77 if ((r1->call == SIMCALL_COMM_ISEND) && (synchro2->type_ == kernel::activity::CommImpl::Type::SEND) &&
78 (synchro2->src_buff_ != simcall_comm_isend__get__src_buff(r1)) && simcall_comm_wait__get__timeout(r2) <= 0)
81 if ((r1->call == SIMCALL_COMM_IRECV) && (synchro2->type_ == kernel::activity::CommImpl::Type::RECEIVE) &&
82 (synchro2->dst_buff_ != simcall_comm_irecv__get__dst_buff(r1)) && simcall_comm_wait__get__timeout(r2) <= 0)
86 /* FIXME: the following rule assumes that the result of the
87 * isend/irecv call is not stored in a buffer used in the
90 if((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
91 && r2->call == SIMCALL_COMM_TEST)
95 if (r1->call == SIMCALL_COMM_WAIT && (r2->call == SIMCALL_COMM_WAIT || r2->call == SIMCALL_COMM_TEST) &&
96 (synchro1->src_actor_.get() == nullptr || synchro1->dst_actor_.get() == nullptr))
99 if (r1->call == SIMCALL_COMM_TEST &&
100 (simcall_comm_test__get__comm(r1) == nullptr || synchro1->src_buff_ == nullptr || synchro1->dst_buff_ == nullptr))
103 if (r1->call == SIMCALL_COMM_TEST && r2->call == SIMCALL_COMM_WAIT && synchro1->src_buff_ == synchro2->src_buff_ &&
104 synchro1->dst_buff_ == synchro2->dst_buff_)
107 if (r1->call == SIMCALL_COMM_WAIT && r2->call == SIMCALL_COMM_TEST && synchro1->src_buff_ != nullptr &&
108 synchro1->dst_buff_ != nullptr && synchro2->src_buff_ != nullptr && synchro2->dst_buff_ != nullptr &&
109 synchro1->dst_buff_ != synchro2->src_buff_ && synchro1->dst_buff_ != synchro2->dst_buff_ &&
110 synchro2->dst_buff_ != synchro1->src_buff_)
116 // Those are internal_req
117 bool request_depend(smx_simcall_t req1, smx_simcall_t req2)
119 if (req1->issuer == req2->issuer)
122 /* Wait with timeout transitions are not considered by the independence theorem, thus we consider them as dependent with all other transitions */
123 if ((req1->call == SIMCALL_COMM_WAIT && simcall_comm_wait__get__timeout(req1) > 0) ||
124 (req2->call == SIMCALL_COMM_WAIT && simcall_comm_wait__get__timeout(req2) > 0))
127 if (req1->call != req2->call)
128 return request_depend_asymmetric(req1, req2) && request_depend_asymmetric(req2, req1);
130 // Those are internal requests, we do not need indirection
131 // because those objects are copies:
132 simgrid::kernel::activity::CommImpl* synchro1 = MC_get_comm(req1);
133 simgrid::kernel::activity::CommImpl* synchro2 = MC_get_comm(req2);
135 switch (req1->call) {
136 case SIMCALL_COMM_ISEND:
137 return simcall_comm_isend__get__mbox(req1) == simcall_comm_isend__get__mbox(req2);
138 case SIMCALL_COMM_IRECV:
139 return simcall_comm_irecv__get__mbox(req1) == simcall_comm_irecv__get__mbox(req2);
140 case SIMCALL_COMM_WAIT:
141 if (synchro1->src_buff_ == synchro2->src_buff_ && synchro1->dst_buff_ == synchro2->dst_buff_)
143 if (synchro1->src_buff_ != nullptr && synchro1->dst_buff_ != nullptr && synchro2->src_buff_ != nullptr &&
144 synchro2->dst_buff_ != nullptr && synchro1->dst_buff_ != synchro2->src_buff_ &&
145 synchro1->dst_buff_ != synchro2->dst_buff_ && synchro2->dst_buff_ != synchro1->src_buff_)
156 static char *pointer_to_string(void *pointer)
159 if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
160 return bprintf("%p", pointer);
162 return xbt_strdup("(verbose only)");
165 static char *buff_size_to_string(size_t buff_size)
168 if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
169 return bprintf("%zu", buff_size);
171 return xbt_strdup("(verbose only)");
175 std::string simgrid::mc::request_to_string(smx_simcall_t req, int value, simgrid::mc::RequestType request_type)
177 xbt_assert(mc_model_checker != nullptr, "Must be called from MCer");
179 bool use_remote_comm = true;
180 switch(request_type) {
181 case simgrid::mc::RequestType::simix:
182 use_remote_comm = true;
184 case simgrid::mc::RequestType::executed:
185 case simgrid::mc::RequestType::internal:
186 use_remote_comm = false;
192 const char* type = nullptr;
193 char *args = nullptr;
195 smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
199 case SIMCALL_COMM_ISEND: {
201 char* p = pointer_to_string(simcall_comm_isend__get__src_buff(req));
202 char* bs = buff_size_to_string(simcall_comm_isend__get__src_buff_size(req));
203 if (issuer->get_host())
204 args = bprintf("src=(%ld)%s (%s), buff=%s, size=%s", issuer->get_pid(), MC_smx_actor_get_host_name(issuer),
205 MC_smx_actor_get_name(issuer), p, bs);
207 args = bprintf("src=(%ld)%s, buff=%s, size=%s", issuer->get_pid(), MC_smx_actor_get_name(issuer), p, bs);
213 case SIMCALL_COMM_IRECV: {
214 size_t* remote_size = simcall_comm_irecv__get__dst_buff_size(req);
217 mc_model_checker->process().read_bytes(&size, sizeof(size),
218 remote(remote_size));
221 char* p = pointer_to_string(simcall_comm_irecv__get__dst_buff(req));
222 char* bs = buff_size_to_string(size);
223 if (issuer->get_host())
224 args = bprintf("dst=(%ld)%s (%s), buff=%s, size=%s", issuer->get_pid(), MC_smx_actor_get_host_name(issuer),
225 MC_smx_actor_get_name(issuer), p, bs);
227 args = bprintf("dst=(%ld)%s, buff=%s, size=%s", issuer->get_pid(), MC_smx_actor_get_name(issuer), p, bs);
233 case SIMCALL_COMM_WAIT: {
234 simgrid::kernel::activity::CommImpl* remote_act =
235 static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(req));
238 type = "WaitTimeout";
239 p = pointer_to_string(remote_act);
240 args = bprintf("comm=%s", p);
243 p = pointer_to_string(remote_act);
245 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
246 simgrid::kernel::activity::CommImpl* act;
247 if (use_remote_comm) {
248 mc_model_checker->process().read(temp_synchro,
249 remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
250 act = temp_synchro.getBuffer();
254 smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_actor_.get()));
255 smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_actor_.get()));
257 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) : "", src_proc ? MC_smx_actor_get_name(src_proc) : "",
259 dst_proc ? dst_proc->get_pid() : 0, dst_proc ? MC_smx_actor_get_host_name(dst_proc) : "",
260 dst_proc ? MC_smx_actor_get_name(dst_proc) : "");
266 case SIMCALL_COMM_TEST: {
267 simgrid::kernel::activity::CommImpl* remote_act =
268 static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_test__getraw__comm(req));
269 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
270 simgrid::kernel::activity::CommImpl* act;
271 if (use_remote_comm) {
272 mc_model_checker->process().read(temp_synchro,
273 remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
274 act = temp_synchro.getBuffer();
279 if (act->src_actor_.get() == nullptr || act->dst_actor_.get() == nullptr) {
281 p = pointer_to_string(remote_act);
282 args = bprintf("comm=%s", p);
285 p = pointer_to_string(remote_act);
287 smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_actor_.get()));
288 smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_actor_.get()));
289 args = bprintf("comm=%s [(%ld)%s (%s) -> (%ld)%s (%s)]", p, src_proc->get_pid(), MC_smx_actor_get_name(src_proc),
290 MC_smx_actor_get_host_name(src_proc), dst_proc->get_pid(), MC_smx_actor_get_name(dst_proc),
291 MC_smx_actor_get_host_name(dst_proc));
297 case SIMCALL_COMM_WAITANY: {
299 size_t count = simcall_comm_waitany__get__count(req);
301 simgrid::kernel::activity::CommImpl* remote_sync;
302 remote_sync = mc_model_checker->process().read(remote(simcall_comm_waitany__get__comms(req) + value));
303 char* p = pointer_to_string(remote_sync);
304 args = bprintf("comm=%s (%d of %zu)", p, value + 1, count);
307 args = bprintf("comm at idx %d", value);
311 case SIMCALL_COMM_TESTANY:
313 type = "TestAny FALSE";
314 args = xbt_strdup("-");
318 bprintf("(%d of %zu)", value + 1,
319 simcall_comm_testany__get__count(req));
323 case SIMCALL_MUTEX_TRYLOCK:
324 case SIMCALL_MUTEX_LOCK: {
325 if (req->call == SIMCALL_MUTEX_LOCK)
328 type = "Mutex TRYLOCK";
330 simgrid::mc::Remote<simgrid::kernel::activity::MutexImpl> mutex;
331 mc_model_checker->process().read_bytes(mutex.getBuffer(), sizeof(mutex),
333 req->call == SIMCALL_MUTEX_LOCK
334 ? simcall_mutex_lock__get__mutex(req)
335 : simcall_mutex_trylock__get__mutex(req)
338 "locked = %d, owner = %d, sleeping = n/a", mutex.getBuffer()->is_locked(),
339 mutex.getBuffer()->owner_ != nullptr
340 ? (int)mc_model_checker->process().resolveActor(simgrid::mc::remote(mutex.getBuffer()->owner_))->get_pid()
345 case SIMCALL_MC_RANDOM:
347 args = bprintf("%d", value);
351 type = SIMIX_simcall_name(req->call);
352 args = bprintf("??");
358 str = simgrid::xbt::string_printf("[(%ld)%s (%s)] %s(%s)", issuer->get_pid(), MC_smx_actor_get_host_name(issuer),
359 MC_smx_actor_get_name(issuer), type, args);
361 str = simgrid::xbt::string_printf("[(%ld)%s (%s)] %s ", issuer->get_pid(), MC_smx_actor_get_host_name(issuer),
362 MC_smx_actor_get_name(issuer), type);
370 bool request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx)
372 simgrid::kernel::activity::CommImpl* remote_act = nullptr;
375 case SIMCALL_COMM_WAIT:
376 /* FIXME: check also that src and dst processes are not suspended */
377 remote_act = simcall_comm_wait__getraw__comm(req);
380 case SIMCALL_COMM_WAITANY:
381 remote_act = mc_model_checker->process().read(remote(simcall_comm_testany__get__comms(req) + idx));
384 case SIMCALL_COMM_TESTANY:
385 remote_act = mc_model_checker->process().read(remote(simcall_comm_testany__get__comms(req) + idx));
392 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
393 mc_model_checker->process().read(temp_comm, remote(remote_act));
394 simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
395 return comm->src_actor_.get() && comm->dst_actor_.get();
399 static const char* colors[] = {
415 static inline const char* get_color(int id)
417 return colors[id % (sizeof(colors) / sizeof(colors[0])) ];
420 std::string request_get_dot_output(smx_simcall_t req, int value)
424 const smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
427 case SIMCALL_COMM_ISEND:
428 if (issuer->get_host())
429 label = simgrid::xbt::string_printf("[(%ld)%s] iSend", issuer->get_pid(), MC_smx_actor_get_host_name(issuer));
431 label = bprintf("[(%ld)] iSend", issuer->get_pid());
434 case SIMCALL_COMM_IRECV:
435 if (issuer->get_host())
436 label = simgrid::xbt::string_printf("[(%ld)%s] iRecv", issuer->get_pid(), MC_smx_actor_get_host_name(issuer));
438 label = simgrid::xbt::string_printf("[(%ld)] iRecv", issuer->get_pid());
441 case SIMCALL_COMM_WAIT:
443 if (issuer->get_host())
445 simgrid::xbt::string_printf("[(%ld)%s] WaitTimeout", issuer->get_pid(), MC_smx_actor_get_host_name(issuer));
447 label = simgrid::xbt::string_printf("[(%ld)] WaitTimeout", issuer->get_pid());
449 simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_wait__getraw__comm(req);
450 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
451 mc_model_checker->process().read(temp_comm,
452 remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
453 simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
455 smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->src_actor_.get()));
456 smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->dst_actor_.get()));
457 if (issuer->get_host())
458 label = simgrid::xbt::string_printf("[(%ld)%s] Wait [(%ld)->(%ld)]", issuer->get_pid(),
459 MC_smx_actor_get_host_name(issuer), src_proc ? src_proc->get_pid() : 0,
460 dst_proc ? dst_proc->get_pid() : 0);
462 label = simgrid::xbt::string_printf("[(%ld)] Wait [(%ld)->(%ld)]", issuer->get_pid(),
463 src_proc ? src_proc->get_pid() : 0, dst_proc ? dst_proc->get_pid() : 0);
467 case SIMCALL_COMM_TEST: {
468 simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_test__getraw__comm(req);
469 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
470 mc_model_checker->process().read(temp_comm, remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
471 simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
472 if (comm->src_actor_.get() == nullptr || comm->dst_actor_.get() == nullptr) {
473 if (issuer->get_host())
475 simgrid::xbt::string_printf("[(%ld)%s] Test FALSE", issuer->get_pid(), MC_smx_actor_get_host_name(issuer));
477 label = bprintf("[(%ld)] Test FALSE", issuer->get_pid());
479 if (issuer->get_host())
481 simgrid::xbt::string_printf("[(%ld)%s] Test TRUE", issuer->get_pid(), MC_smx_actor_get_host_name(issuer));
483 label = simgrid::xbt::string_printf("[(%ld)] Test TRUE", issuer->get_pid());
488 case SIMCALL_COMM_WAITANY: {
489 size_t comms_size = simcall_comm_waitany__get__count(req);
490 if (issuer->get_host())
491 label = simgrid::xbt::string_printf("[(%ld)%s] WaitAny [%d of %zu]", issuer->get_pid(),
492 MC_smx_actor_get_host_name(issuer), value + 1, comms_size);
494 label = simgrid::xbt::string_printf("[(%ld)] WaitAny [%d of %zu]", issuer->get_pid(), value + 1, comms_size);
498 case SIMCALL_COMM_TESTANY:
500 if (issuer->get_host())
501 label = simgrid::xbt::string_printf("[(%ld)%s] TestAny FALSE", issuer->get_pid(),
502 MC_smx_actor_get_host_name(issuer));
504 label = simgrid::xbt::string_printf("[(%ld)] TestAny FALSE", issuer->get_pid());
506 if (issuer->get_host())
507 label = simgrid::xbt::string_printf("[(%ld)%s] TestAny TRUE [%d of %lu]", issuer->get_pid(),
508 MC_smx_actor_get_host_name(issuer), value + 1,
509 simcall_comm_testany__get__count(req));
511 label = simgrid::xbt::string_printf("[(%ld)] TestAny TRUE [%d of %lu]", issuer->get_pid(), value + 1,
512 simcall_comm_testany__get__count(req));
516 case SIMCALL_MUTEX_TRYLOCK:
517 label = simgrid::xbt::string_printf("[(%ld)] Mutex TRYLOCK", issuer->get_pid());
520 case SIMCALL_MUTEX_LOCK:
521 label = simgrid::xbt::string_printf("[(%ld)] Mutex LOCK", issuer->get_pid());
524 case SIMCALL_MC_RANDOM:
525 if (issuer->get_host())
526 label = simgrid::xbt::string_printf("[(%ld)%s] MC_RANDOM (%d)", issuer->get_pid(),
527 MC_smx_actor_get_host_name(issuer), value);
529 label = simgrid::xbt::string_printf("[(%ld)] MC_RANDOM (%d)", issuer->get_pid(), value);
536 const char* color = get_color(issuer->get_pid() - 1);
537 return simgrid::xbt::string_printf(
538 "label = \"%s\", color = %s, fontcolor = %s", label.c_str(),