1 /* Copyright (c) 2008-2015. The SimGrid Team.
2 * All rights reserved. */
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. */
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"
14 using simgrid::mc::remote;
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_request, mc,
17 "Logging specific to MC (request)");
19 static char *pointer_to_string(void *pointer);
20 static char *buff_size_to_string(size_t size);
23 simgrid::kernel::activity::Comm* MC_get_comm(smx_simcall_t r)
26 case SIMCALL_COMM_WAIT:
27 return static_cast<simgrid::kernel::activity::Comm*>(simcall_comm_wait__get__comm(r));
28 case SIMCALL_COMM_TEST:
29 return static_cast<simgrid::kernel::activity::Comm*>(simcall_comm_test__get__comm(r));
36 smx_mailbox_t MC_get_mbox(smx_simcall_t r)
39 case SIMCALL_COMM_ISEND:
40 return simcall_comm_isend__get__mbox(r);
41 case SIMCALL_COMM_IRECV:
42 return simcall_comm_irecv__get__mbox(r);
53 bool request_depend_asymmetric(smx_simcall_t r1, smx_simcall_t r2)
55 if (r1->call == SIMCALL_COMM_ISEND && r2->call == SIMCALL_COMM_IRECV)
58 if (r1->call == SIMCALL_COMM_IRECV && r2->call == SIMCALL_COMM_ISEND)
61 // Those are internal requests, we do not need indirection
62 // because those objects are copies:
63 simgrid::kernel::activity::Comm* synchro1 = MC_get_comm(r1);
64 simgrid::kernel::activity::Comm* synchro2 = MC_get_comm(r2);
66 if ((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
67 && r2->call == SIMCALL_COMM_WAIT) {
69 smx_mailbox_t mbox = MC_get_mbox(r1);
71 if (mbox != synchro2->mbox_cpy
72 && simcall_comm_wait__get__timeout(r2) <= 0)
75 if ((r1->issuer != synchro2->src_proc)
76 && (r1->issuer != synchro2->dst_proc)
77 && simcall_comm_wait__get__timeout(r2) <= 0)
80 if ((r1->call == SIMCALL_COMM_ISEND)
81 && (synchro2->type == SIMIX_COMM_SEND)
82 && (synchro2->src_buff !=
83 simcall_comm_isend__get__src_buff(r1))
84 && simcall_comm_wait__get__timeout(r2) <= 0)
87 if ((r1->call == SIMCALL_COMM_IRECV)
88 && (synchro2->type == SIMIX_COMM_RECEIVE)
89 && (synchro2->dst_buff != simcall_comm_irecv__get__dst_buff(r1))
90 && simcall_comm_wait__get__timeout(r2) <= 0)
94 /* FIXME: the following rule assumes that the result of the
95 * isend/irecv call is not stored in a buffer used in the
98 if((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
99 && r2->call == SIMCALL_COMM_TEST)
103 if (r1->call == SIMCALL_COMM_WAIT
104 && (r2->call == SIMCALL_COMM_WAIT || r2->call == SIMCALL_COMM_TEST)
105 && (synchro1->src_proc == nullptr || synchro1->dst_proc == nullptr))
108 if (r1->call == SIMCALL_COMM_TEST &&
109 (simcall_comm_test__get__comm(r1) == nullptr
110 || synchro1->src_buff == nullptr
111 || synchro1->dst_buff == nullptr))
114 if (r1->call == SIMCALL_COMM_TEST && r2->call == SIMCALL_COMM_WAIT
115 && synchro1->src_buff == synchro2->src_buff
116 && synchro1->dst_buff == synchro2->dst_buff)
119 if (r1->call == SIMCALL_COMM_WAIT && r2->call == SIMCALL_COMM_TEST
120 && synchro1->src_buff != nullptr
121 && synchro1->dst_buff != nullptr
122 && synchro2->src_buff != nullptr
123 && synchro2->dst_buff != nullptr
124 && synchro1->dst_buff != synchro2->src_buff
125 && synchro1->dst_buff != synchro2->dst_buff
126 && synchro2->dst_buff != synchro1->src_buff)
132 // Those are internal_req
133 bool request_depend(smx_simcall_t r1, smx_simcall_t r2)
135 if (r1->issuer == r2->issuer)
138 /* Wait with timeout transitions are not considered by the independence theorem, thus we consider them as dependent with all other transitions */
139 if ((r1->call == SIMCALL_COMM_WAIT && simcall_comm_wait__get__timeout(r1) > 0)
140 || (r2->call == SIMCALL_COMM_WAIT
141 && simcall_comm_wait__get__timeout(r2) > 0))
144 if (r1->call != r2->call)
145 return request_depend_asymmetric(r1, r2)
146 && request_depend_asymmetric(r2, r1);
148 // Those are internal requests, we do not need indirection
149 // because those objects are copies:
150 simgrid::kernel::activity::Comm* synchro1 = MC_get_comm(r1);
151 simgrid::kernel::activity::Comm* synchro2 = MC_get_comm(r2);
154 case SIMCALL_COMM_ISEND:
155 return simcall_comm_isend__get__mbox(r1)
156 == simcall_comm_isend__get__mbox(r2);
157 case SIMCALL_COMM_IRECV:
158 return simcall_comm_irecv__get__mbox(r1)
159 == simcall_comm_irecv__get__mbox(r2);
160 case SIMCALL_COMM_WAIT:
161 if (synchro1->src_buff == synchro2->src_buff
162 && synchro1->dst_buff == synchro2->dst_buff)
164 else if (synchro1->src_buff != nullptr
165 && synchro1->dst_buff != nullptr
166 && synchro2->src_buff != nullptr
167 && synchro2->dst_buff != nullptr
168 && synchro1->dst_buff != synchro2->src_buff
169 && synchro1->dst_buff != synchro2->dst_buff
170 && synchro2->dst_buff != synchro1->src_buff)
182 static char *pointer_to_string(void *pointer)
185 if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
186 return bprintf("%p", pointer);
188 return xbt_strdup("(verbose only)");
191 static char *buff_size_to_string(size_t buff_size)
194 if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
195 return bprintf("%zu", buff_size);
197 return xbt_strdup("(verbose only)");
201 std::string simgrid::mc::request_to_string(smx_simcall_t req, int value, simgrid::mc::RequestType request_type)
203 xbt_assert(mc_model_checker != nullptr);
205 bool use_remote_comm = true;
206 switch(request_type) {
207 case simgrid::mc::RequestType::simix:
208 use_remote_comm = true;
210 case simgrid::mc::RequestType::executed:
211 case simgrid::mc::RequestType::internal:
212 use_remote_comm = false;
216 const char* type = nullptr;
217 char *args = nullptr;
219 smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
223 case SIMCALL_COMM_ISEND: {
225 char* p = pointer_to_string(simcall_comm_isend__get__src_buff(req));
226 char* bs = buff_size_to_string(simcall_comm_isend__get__src_buff_size(req));
228 args = bprintf("src=(%lu)%s (%s), buff=%s, size=%s", issuer->pid, MC_smx_actor_get_host_name(issuer),
229 MC_smx_actor_get_name(issuer), p, bs);
231 args = bprintf("src=(%lu)%s, buff=%s, size=%s", issuer->pid, MC_smx_actor_get_name(issuer), p, bs);
237 case SIMCALL_COMM_IRECV: {
238 size_t* remote_size = simcall_comm_irecv__get__dst_buff_size(req);
240 // size_t size = size_pointer ? *size_pointer : 0;
243 mc_model_checker->process().read_bytes(&size, sizeof(size),
244 remote(remote_size));
247 char* p = pointer_to_string(simcall_comm_irecv__get__dst_buff(req));
248 char* bs = buff_size_to_string(size);
250 args = bprintf("dst=(%lu)%s (%s), buff=%s, size=%s", issuer->pid, MC_smx_actor_get_host_name(issuer),
251 MC_smx_actor_get_name(issuer), p, bs);
253 args = bprintf("dst=(%lu)%s, buff=%s, size=%s", issuer->pid, MC_smx_actor_get_name(issuer), p, bs);
259 case SIMCALL_COMM_WAIT: {
260 simgrid::kernel::activity::Comm* remote_act =
261 static_cast<simgrid::kernel::activity::Comm*>(simcall_comm_wait__get__comm(req));
264 type = "WaitTimeout";
265 p = pointer_to_string(remote_act);
266 args = bprintf("comm=%s", p);
269 p = pointer_to_string(remote_act);
271 simgrid::mc::Remote<simgrid::kernel::activity::Comm> temp_synchro;
272 simgrid::kernel::activity::Comm* act;
273 if (use_remote_comm) {
274 mc_model_checker->process().read(temp_synchro, remote(
275 static_cast<simgrid::kernel::activity::Comm*>(remote_act)));
276 act = temp_synchro.getBuffer();
280 smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_proc));
281 smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_proc));
283 bprintf("comm=%s [(%lu)%s (%s)-> (%lu)%s (%s)]", p, src_proc ? src_proc->pid : 0,
284 src_proc ? MC_smx_actor_get_host_name(src_proc) : "", src_proc ? MC_smx_actor_get_name(src_proc) : "",
285 dst_proc ? dst_proc->pid : 0, dst_proc ? MC_smx_actor_get_host_name(dst_proc) : "",
286 dst_proc ? MC_smx_actor_get_name(dst_proc) : "");
292 case SIMCALL_COMM_TEST: {
293 simgrid::kernel::activity::Comm* remote_act = static_cast<simgrid::kernel::activity::Comm*>(
294 simcall_comm_test__get__comm(req));
295 simgrid::mc::Remote<simgrid::kernel::activity::Comm> temp_synchro;
296 simgrid::kernel::activity::Comm* act;
297 if (use_remote_comm) {
298 mc_model_checker->process().read(temp_synchro, remote(
299 static_cast<simgrid::kernel::activity::Comm*>(remote_act)));
300 act = temp_synchro.getBuffer();
305 if (act->src_proc == nullptr || act->dst_proc == nullptr) {
307 p = pointer_to_string(remote_act);
308 args = bprintf("comm=%s", p);
311 p = pointer_to_string(remote_act);
313 smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_proc));
314 smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_proc));
315 args = bprintf("comm=%s [(%lu)%s (%s) -> (%lu)%s (%s)]", p, src_proc->pid, MC_smx_actor_get_name(src_proc),
316 MC_smx_actor_get_host_name(src_proc), dst_proc->pid, MC_smx_actor_get_name(dst_proc),
317 MC_smx_actor_get_host_name(dst_proc));
323 case SIMCALL_COMM_WAITANY: {
326 mc_model_checker->process().read_bytes(
327 &comms, sizeof(comms), remote(simcall_comm_waitany__get__comms(req)));
328 if (not xbt_dynar_is_empty(&comms)) {
329 smx_activity_t remote_sync;
330 read_element(mc_model_checker->process(),
331 &remote_sync, remote(simcall_comm_waitany__get__comms(req)), value,
332 sizeof(remote_sync));
333 char* p = pointer_to_string(remote_sync);
334 args = bprintf("comm=%s (%d of %lu)",
335 p, value + 1, xbt_dynar_length(&comms));
338 args = bprintf("comm at idx %d", value);
342 case SIMCALL_COMM_TESTANY:
344 type = "TestAny FALSE";
345 args = xbt_strdup("-");
349 bprintf("(%d of %zu)", value + 1,
350 simcall_comm_testany__get__count(req));
354 case SIMCALL_MUTEX_TRYLOCK:
355 case SIMCALL_MUTEX_LOCK: {
356 if (req->call == SIMCALL_MUTEX_LOCK)
359 type = "Mutex TRYLOCK";
361 simgrid::mc::Remote<simgrid::simix::MutexImpl> mutex;
362 mc_model_checker->process().read_bytes(mutex.getBuffer(), sizeof(mutex),
364 req->call == SIMCALL_MUTEX_LOCK
365 ? simcall_mutex_lock__get__mutex(req)
366 : simcall_mutex_trylock__get__mutex(req)
368 s_xbt_swag_t mutex_sleeping;
369 mc_model_checker->process().read_bytes(&mutex_sleeping, sizeof(mutex_sleeping),
370 remote(mutex.getBuffer()->sleeping));
373 bprintf("locked = %d, owner = %d, sleeping = %d", mutex.getBuffer()->locked,
374 mutex.getBuffer()->owner != nullptr
375 ? (int)mc_model_checker->process().resolveActor(simgrid::mc::remote(mutex.getBuffer()->owner))->pid
377 mutex_sleeping.count);
381 case SIMCALL_MC_RANDOM:
383 args = bprintf("%d", value);
387 type = SIMIX_simcall_name(req->call);
388 args = bprintf("??");
394 str = simgrid::xbt::string_printf("[(%lu)%s (%s)] %s(%s)", issuer->pid, MC_smx_actor_get_host_name(issuer),
395 MC_smx_actor_get_name(issuer), type, args);
397 str = simgrid::xbt::string_printf("[(%lu)%s (%s)] %s ", issuer->pid, MC_smx_actor_get_host_name(issuer),
398 MC_smx_actor_get_name(issuer), type);
406 bool request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx)
408 smx_activity_t remote_act = nullptr;
411 case SIMCALL_COMM_WAIT:
412 /* FIXME: check also that src and dst processes are not suspended */
413 remote_act = simcall_comm_wait__get__comm(req);
416 case SIMCALL_COMM_WAITANY: {
418 mc_model_checker->process(), &remote_act,
419 remote(simcall_comm_waitany__get__comms(req)),
420 idx, sizeof(remote_act));
424 case SIMCALL_COMM_TESTANY:
425 remote_act = mc_model_checker->process().read(remote(
426 simcall_comm_testany__get__comms(req) + idx));
433 simgrid::mc::Remote<simgrid::kernel::activity::Comm> temp_comm;
434 mc_model_checker->process().read(temp_comm, remote(
435 static_cast<simgrid::kernel::activity::Comm*>(remote_act)));
436 simgrid::kernel::activity::Comm* comm = temp_comm.getBuffer();
437 return comm->src_proc && comm->dst_proc;
440 bool actor_is_enabled(smx_actor_t actor)
442 return simgrid::mc::request_is_enabled(&actor->simcall);
445 static const char* colors[] = {
461 static inline const char* get_color(int id)
463 return colors[id % (sizeof(colors) / sizeof(colors[0])) ];
466 std::string request_get_dot_output(smx_simcall_t req, int value)
470 const smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
473 case SIMCALL_COMM_ISEND:
475 label = simgrid::xbt::string_printf("[(%lu)%s] iSend", issuer->pid, MC_smx_actor_get_host_name(issuer));
477 label = bprintf("[(%lu)] iSend", issuer->pid);
480 case SIMCALL_COMM_IRECV:
482 label = simgrid::xbt::string_printf("[(%lu)%s] iRecv", issuer->pid, MC_smx_actor_get_host_name(issuer));
484 label = simgrid::xbt::string_printf("[(%lu)] iRecv", issuer->pid);
487 case SIMCALL_COMM_WAIT: {
490 label = simgrid::xbt::string_printf("[(%lu)%s] WaitTimeout", issuer->pid, MC_smx_actor_get_host_name(issuer));
492 label = simgrid::xbt::string_printf("[(%lu)] WaitTimeout", issuer->pid);
494 smx_activity_t remote_act = simcall_comm_wait__get__comm(req);
495 simgrid::mc::Remote<simgrid::kernel::activity::Comm> temp_comm;
496 mc_model_checker->process().read(temp_comm, remote(
497 static_cast<simgrid::kernel::activity::Comm*>(remote_act)));
498 simgrid::kernel::activity::Comm* comm = temp_comm.getBuffer();
500 smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->src_proc));
501 smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->dst_proc));
503 label = simgrid::xbt::string_printf("[(%lu)%s] Wait [(%lu)->(%lu)]", issuer->pid,
504 MC_smx_actor_get_host_name(issuer), src_proc ? src_proc->pid : 0,
505 dst_proc ? dst_proc->pid : 0);
507 label = simgrid::xbt::string_printf("[(%lu)] Wait [(%lu)->(%lu)]",
509 src_proc ? src_proc->pid : 0,
510 dst_proc ? dst_proc->pid : 0);
515 case SIMCALL_COMM_TEST: {
516 smx_activity_t remote_act = simcall_comm_test__get__comm(req);
517 simgrid::mc::Remote<simgrid::kernel::activity::Comm> temp_comm;
518 mc_model_checker->process().read(temp_comm, remote(
519 static_cast<simgrid::kernel::activity::Comm*>(remote_act)));
520 simgrid::kernel::activity::Comm* comm = temp_comm.getBuffer();
521 if (comm->src_proc == nullptr || comm->dst_proc == nullptr) {
523 label = simgrid::xbt::string_printf("[(%lu)%s] Test FALSE", issuer->pid, MC_smx_actor_get_host_name(issuer));
525 label = bprintf("[(%lu)] Test FALSE", issuer->pid);
528 label = simgrid::xbt::string_printf("[(%lu)%s] Test TRUE", issuer->pid, MC_smx_actor_get_host_name(issuer));
530 label = simgrid::xbt::string_printf("[(%lu)] Test TRUE", issuer->pid);
535 case SIMCALL_COMM_WAITANY: {
536 unsigned long comms_size = read_length(
537 mc_model_checker->process(), remote(simcall_comm_waitany__get__comms(req)));
539 label = simgrid::xbt::string_printf("[(%lu)%s] WaitAny [%d of %lu]", issuer->pid,
540 MC_smx_actor_get_host_name(issuer), value + 1, comms_size);
542 label = simgrid::xbt::string_printf("[(%lu)] WaitAny [%d of %lu]",
543 issuer->pid, value + 1, comms_size);
547 case SIMCALL_COMM_TESTANY:
550 label = simgrid::xbt::string_printf("[(%lu)%s] TestAny FALSE", issuer->pid, MC_smx_actor_get_host_name(issuer));
552 label = simgrid::xbt::string_printf("[(%lu)] TestAny FALSE", issuer->pid);
555 label = simgrid::xbt::string_printf("[(%lu)%s] TestAny TRUE [%d of %lu]", issuer->pid,
556 MC_smx_actor_get_host_name(issuer), value + 1,
557 simcall_comm_testany__get__count(req));
559 label = simgrid::xbt::string_printf("[(%lu)] TestAny TRUE [%d of %lu]",
562 simcall_comm_testany__get__count(req));
566 case SIMCALL_MUTEX_TRYLOCK:
567 label = simgrid::xbt::string_printf("[(%lu)] Mutex TRYLOCK", issuer->pid);
570 case SIMCALL_MUTEX_LOCK:
571 label = simgrid::xbt::string_printf("[(%lu)] Mutex LOCK", issuer->pid);
574 case SIMCALL_MC_RANDOM:
576 label = simgrid::xbt::string_printf("[(%lu)%s] MC_RANDOM (%d)", issuer->pid, MC_smx_actor_get_host_name(issuer),
579 label = simgrid::xbt::string_printf("[(%lu)] MC_RANDOM (%d)", issuer->pid, value);
586 const char* color = get_color(issuer->pid - 1);
587 return simgrid::xbt::string_printf(
588 "label = \"%s\", color = %s, fontcolor = %s", label.c_str(),