1 /* Copyright (c) 2008-2017. 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. */
8 #include "src/include/mc/mc.h"
9 #include "src/mc/ModelChecker.hpp"
10 #include "src/mc/mc_request.hpp"
11 #include "src/mc/mc_smx.hpp"
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);
22 static inline simgrid::kernel::activity::CommImpl* MC_get_comm(smx_simcall_t r)
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));
35 smx_mailbox_t MC_get_mbox(smx_simcall_t r)
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);
52 bool request_depend_asymmetric(smx_simcall_t r1, smx_simcall_t r2)
54 if (r1->call == SIMCALL_COMM_ISEND && r2->call == SIMCALL_COMM_IRECV)
57 if (r1->call == SIMCALL_COMM_IRECV && r2->call == SIMCALL_COMM_ISEND)
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);
65 if ((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
66 && r2->call == SIMCALL_COMM_WAIT) {
68 smx_mailbox_t mbox = MC_get_mbox(r1);
70 if (mbox != synchro2->mbox_cpy
71 && simcall_comm_wait__get__timeout(r2) <= 0)
74 if ((r1->issuer != synchro2->src_proc)
75 && (r1->issuer != synchro2->dst_proc)
76 && simcall_comm_wait__get__timeout(r2) <= 0)
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)
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)
93 /* FIXME: the following rule assumes that the result of the
94 * isend/irecv call is not stored in a buffer used in the
97 if((r1->call == SIMCALL_COMM_ISEND || r1->call == SIMCALL_COMM_IRECV)
98 && r2->call == SIMCALL_COMM_TEST)
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))
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))
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)
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)
131 // Those are internal_req
132 bool request_depend(smx_simcall_t r1, smx_simcall_t r2)
134 if (r1->issuer == r2->issuer)
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))
143 if (r1->call != r2->call)
144 return request_depend_asymmetric(r1, r2)
145 && request_depend_asymmetric(r2, r1);
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);
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)
163 if (synchro1->src_buff != nullptr && synchro1->dst_buff != nullptr && synchro2->src_buff != nullptr &&
164 synchro2->dst_buff != nullptr && synchro1->dst_buff != synchro2->src_buff &&
165 synchro1->dst_buff != synchro2->dst_buff && synchro2->dst_buff != synchro1->src_buff)
176 static char *pointer_to_string(void *pointer)
179 if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
180 return bprintf("%p", pointer);
182 return xbt_strdup("(verbose only)");
185 static char *buff_size_to_string(size_t buff_size)
188 if (XBT_LOG_ISENABLED(mc_request, xbt_log_priority_verbose))
189 return bprintf("%zu", buff_size);
191 return xbt_strdup("(verbose only)");
195 std::string simgrid::mc::request_to_string(smx_simcall_t req, int value, simgrid::mc::RequestType request_type)
197 xbt_assert(mc_model_checker != nullptr, "Must be called from MCer");
199 bool use_remote_comm = true;
200 switch(request_type) {
201 case simgrid::mc::RequestType::simix:
202 use_remote_comm = true;
204 case simgrid::mc::RequestType::executed:
205 case simgrid::mc::RequestType::internal:
206 use_remote_comm = false;
210 const char* type = nullptr;
211 char *args = nullptr;
213 smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
217 case SIMCALL_COMM_ISEND: {
219 char* p = pointer_to_string(simcall_comm_isend__get__src_buff(req));
220 char* bs = buff_size_to_string(simcall_comm_isend__get__src_buff_size(req));
222 args = bprintf("src=(%lu)%s (%s), buff=%s, size=%s", issuer->pid, MC_smx_actor_get_host_name(issuer),
223 MC_smx_actor_get_name(issuer), p, bs);
225 args = bprintf("src=(%lu)%s, buff=%s, size=%s", issuer->pid, MC_smx_actor_get_name(issuer), p, bs);
231 case SIMCALL_COMM_IRECV: {
232 size_t* remote_size = simcall_comm_irecv__get__dst_buff_size(req);
235 mc_model_checker->process().read_bytes(&size, sizeof(size),
236 remote(remote_size));
239 char* p = pointer_to_string(simcall_comm_irecv__get__dst_buff(req));
240 char* bs = buff_size_to_string(size);
242 args = bprintf("dst=(%lu)%s (%s), buff=%s, size=%s", issuer->pid, MC_smx_actor_get_host_name(issuer),
243 MC_smx_actor_get_name(issuer), p, bs);
245 args = bprintf("dst=(%lu)%s, buff=%s, size=%s", issuer->pid, MC_smx_actor_get_name(issuer), p, bs);
251 case SIMCALL_COMM_WAIT: {
252 simgrid::kernel::activity::CommImpl* remote_act =
253 static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_wait__getraw__comm(req));
256 type = "WaitTimeout";
257 p = pointer_to_string(remote_act);
258 args = bprintf("comm=%s", p);
261 p = pointer_to_string(remote_act);
263 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
264 simgrid::kernel::activity::CommImpl* act;
265 if (use_remote_comm) {
266 mc_model_checker->process().read(temp_synchro,
267 remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
268 act = temp_synchro.getBuffer();
272 smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_proc));
273 smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_proc));
275 bprintf("comm=%s [(%lu)%s (%s)-> (%lu)%s (%s)]", p, src_proc ? src_proc->pid : 0,
276 src_proc ? MC_smx_actor_get_host_name(src_proc) : "", src_proc ? MC_smx_actor_get_name(src_proc) : "",
277 dst_proc ? dst_proc->pid : 0, dst_proc ? MC_smx_actor_get_host_name(dst_proc) : "",
278 dst_proc ? MC_smx_actor_get_name(dst_proc) : "");
284 case SIMCALL_COMM_TEST: {
285 simgrid::kernel::activity::CommImpl* remote_act =
286 static_cast<simgrid::kernel::activity::CommImpl*>(simcall_comm_test__getraw__comm(req));
287 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_synchro;
288 simgrid::kernel::activity::CommImpl* act;
289 if (use_remote_comm) {
290 mc_model_checker->process().read(temp_synchro,
291 remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
292 act = temp_synchro.getBuffer();
297 if (act->src_proc == nullptr || act->dst_proc == nullptr) {
299 p = pointer_to_string(remote_act);
300 args = bprintf("comm=%s", p);
303 p = pointer_to_string(remote_act);
305 smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->src_proc));
306 smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(act->dst_proc));
307 args = bprintf("comm=%s [(%lu)%s (%s) -> (%lu)%s (%s)]", p, src_proc->pid, MC_smx_actor_get_name(src_proc),
308 MC_smx_actor_get_host_name(src_proc), dst_proc->pid, MC_smx_actor_get_name(dst_proc),
309 MC_smx_actor_get_host_name(dst_proc));
315 case SIMCALL_COMM_WAITANY: {
318 mc_model_checker->process().read_bytes(
319 &comms, sizeof(comms), remote(simcall_comm_waitany__get__comms(req)));
320 if (not xbt_dynar_is_empty(&comms)) {
321 smx_activity_t remote_sync;
322 read_element(mc_model_checker->process(),
323 &remote_sync, remote(simcall_comm_waitany__get__comms(req)), value,
324 sizeof(remote_sync));
325 char* p = pointer_to_string(&*remote_sync);
326 args = bprintf("comm=%s (%d of %lu)",
327 p, value + 1, xbt_dynar_length(&comms));
330 args = bprintf("comm at idx %d", value);
334 case SIMCALL_COMM_TESTANY:
336 type = "TestAny FALSE";
337 args = xbt_strdup("-");
341 bprintf("(%d of %zu)", value + 1,
342 simcall_comm_testany__get__count(req));
346 case SIMCALL_MUTEX_TRYLOCK:
347 case SIMCALL_MUTEX_LOCK: {
348 if (req->call == SIMCALL_MUTEX_LOCK)
351 type = "Mutex TRYLOCK";
353 simgrid::mc::Remote<simgrid::simix::MutexImpl> mutex;
354 mc_model_checker->process().read_bytes(mutex.getBuffer(), sizeof(mutex),
356 req->call == SIMCALL_MUTEX_LOCK
357 ? simcall_mutex_lock__get__mutex(req)
358 : simcall_mutex_trylock__get__mutex(req)
360 s_xbt_swag_t mutex_sleeping;
361 mc_model_checker->process().read_bytes(&mutex_sleeping, sizeof(mutex_sleeping),
362 remote(mutex.getBuffer()->sleeping));
365 bprintf("locked = %d, owner = %d, sleeping = %d", mutex.getBuffer()->locked,
366 mutex.getBuffer()->owner != nullptr
367 ? (int)mc_model_checker->process().resolveActor(simgrid::mc::remote(mutex.getBuffer()->owner))->pid
369 mutex_sleeping.count);
373 case SIMCALL_MC_RANDOM:
375 args = bprintf("%d", value);
379 type = SIMIX_simcall_name(req->call);
380 args = bprintf("??");
386 str = simgrid::xbt::string_printf("[(%lu)%s (%s)] %s(%s)", issuer->pid, MC_smx_actor_get_host_name(issuer),
387 MC_smx_actor_get_name(issuer), type, args);
389 str = simgrid::xbt::string_printf("[(%lu)%s (%s)] %s ", issuer->pid, MC_smx_actor_get_host_name(issuer),
390 MC_smx_actor_get_name(issuer), type);
398 bool request_is_enabled_by_idx(smx_simcall_t req, unsigned int idx)
400 simgrid::kernel::activity::ActivityImpl* remote_act = nullptr;
403 case SIMCALL_COMM_WAIT:
404 /* FIXME: check also that src and dst processes are not suspended */
405 remote_act = simcall_comm_wait__getraw__comm(req);
408 case SIMCALL_COMM_WAITANY: {
409 read_element(mc_model_checker->process(), &remote_act, remote(simcall_comm_waitany__getraw__comms(req)), idx,
414 case SIMCALL_COMM_TESTANY:
415 remote_act = mc_model_checker->process().read(remote(simcall_comm_testany__getraw__comms(req) + idx));
422 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
423 mc_model_checker->process().read(temp_comm, remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
424 simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
425 return comm->src_proc && comm->dst_proc;
429 static const char* colors[] = {
445 static inline const char* get_color(int id)
447 return colors[id % (sizeof(colors) / sizeof(colors[0])) ];
450 std::string request_get_dot_output(smx_simcall_t req, int value)
454 const smx_actor_t issuer = MC_smx_simcall_get_issuer(req);
457 case SIMCALL_COMM_ISEND:
459 label = simgrid::xbt::string_printf("[(%lu)%s] iSend", issuer->pid, MC_smx_actor_get_host_name(issuer));
461 label = bprintf("[(%lu)] iSend", issuer->pid);
464 case SIMCALL_COMM_IRECV:
466 label = simgrid::xbt::string_printf("[(%lu)%s] iRecv", issuer->pid, MC_smx_actor_get_host_name(issuer));
468 label = simgrid::xbt::string_printf("[(%lu)] iRecv", issuer->pid);
471 case SIMCALL_COMM_WAIT: {
474 label = simgrid::xbt::string_printf("[(%lu)%s] WaitTimeout", issuer->pid, MC_smx_actor_get_host_name(issuer));
476 label = simgrid::xbt::string_printf("[(%lu)] WaitTimeout", issuer->pid);
478 simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_wait__getraw__comm(req);
479 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
480 mc_model_checker->process().read(temp_comm,
481 remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
482 simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
484 smx_actor_t src_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->src_proc));
485 smx_actor_t dst_proc = mc_model_checker->process().resolveActor(simgrid::mc::remote(comm->dst_proc));
487 label = simgrid::xbt::string_printf("[(%lu)%s] Wait [(%lu)->(%lu)]", issuer->pid,
488 MC_smx_actor_get_host_name(issuer), src_proc ? src_proc->pid : 0,
489 dst_proc ? dst_proc->pid : 0);
491 label = simgrid::xbt::string_printf("[(%lu)] Wait [(%lu)->(%lu)]",
493 src_proc ? src_proc->pid : 0,
494 dst_proc ? dst_proc->pid : 0);
499 case SIMCALL_COMM_TEST: {
500 simgrid::kernel::activity::ActivityImpl* remote_act = simcall_comm_test__getraw__comm(req);
501 simgrid::mc::Remote<simgrid::kernel::activity::CommImpl> temp_comm;
502 mc_model_checker->process().read(temp_comm, remote(static_cast<simgrid::kernel::activity::CommImpl*>(remote_act)));
503 simgrid::kernel::activity::CommImpl* comm = temp_comm.getBuffer();
504 if (comm->src_proc == nullptr || comm->dst_proc == nullptr) {
506 label = simgrid::xbt::string_printf("[(%lu)%s] Test FALSE", issuer->pid, MC_smx_actor_get_host_name(issuer));
508 label = bprintf("[(%lu)] Test FALSE", issuer->pid);
511 label = simgrid::xbt::string_printf("[(%lu)%s] Test TRUE", issuer->pid, MC_smx_actor_get_host_name(issuer));
513 label = simgrid::xbt::string_printf("[(%lu)] Test TRUE", issuer->pid);
518 case SIMCALL_COMM_WAITANY: {
519 unsigned long comms_size = read_length(
520 mc_model_checker->process(), remote(simcall_comm_waitany__get__comms(req)));
522 label = simgrid::xbt::string_printf("[(%lu)%s] WaitAny [%d of %lu]", issuer->pid,
523 MC_smx_actor_get_host_name(issuer), value + 1, comms_size);
525 label = simgrid::xbt::string_printf("[(%lu)] WaitAny [%d of %lu]",
526 issuer->pid, value + 1, comms_size);
530 case SIMCALL_COMM_TESTANY:
533 label = simgrid::xbt::string_printf("[(%lu)%s] TestAny FALSE", issuer->pid, MC_smx_actor_get_host_name(issuer));
535 label = simgrid::xbt::string_printf("[(%lu)] TestAny FALSE", issuer->pid);
538 label = simgrid::xbt::string_printf("[(%lu)%s] TestAny TRUE [%d of %lu]", issuer->pid,
539 MC_smx_actor_get_host_name(issuer), value + 1,
540 simcall_comm_testany__get__count(req));
542 label = simgrid::xbt::string_printf("[(%lu)] TestAny TRUE [%d of %lu]",
545 simcall_comm_testany__get__count(req));
549 case SIMCALL_MUTEX_TRYLOCK:
550 label = simgrid::xbt::string_printf("[(%lu)] Mutex TRYLOCK", issuer->pid);
553 case SIMCALL_MUTEX_LOCK:
554 label = simgrid::xbt::string_printf("[(%lu)] Mutex LOCK", issuer->pid);
557 case SIMCALL_MC_RANDOM:
559 label = simgrid::xbt::string_printf("[(%lu)%s] MC_RANDOM (%d)", issuer->pid, MC_smx_actor_get_host_name(issuer),
562 label = simgrid::xbt::string_printf("[(%lu)] MC_RANDOM (%d)", issuer->pid, value);
569 const char* color = get_color(issuer->pid - 1);
570 return simgrid::xbt::string_printf(
571 "label = \"%s\", color = %s, fontcolor = %s", label.c_str(),