1 /* Copyright (c) 2007-2019. 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/kernel/activity/CommImpl.hpp"
7 #include "simgrid/Exception.hpp"
8 #include "simgrid/kernel/resource/Action.hpp"
9 #include "simgrid/modelchecker.h"
10 #include "simgrid/s4u/Host.hpp"
11 #include "src/kernel/activity/MailboxImpl.hpp"
12 #include "src/kernel/context/Context.hpp"
13 #include "src/mc/mc_replay.hpp"
14 #include "src/surf/cpu_interface.hpp"
15 #include "src/surf/network_interface.hpp"
16 #include "src/surf/surf_interface.hpp"
18 #include <boost/range/algorithm.hpp>
19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_network, simix, "SIMIX network-related synchronization");
21 XBT_PRIVATE void simcall_HANDLER_comm_send(smx_simcall_t simcall, smx_actor_t src, smx_mailbox_t mbox, double task_size,
22 double rate, void* src_buff, size_t src_buff_size,
23 int (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
24 void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t),
25 void* data, double timeout)
27 smx_activity_t comm = simcall_HANDLER_comm_isend(simcall, src, mbox, task_size, rate, src_buff, src_buff_size,
28 match_fun, nullptr, copy_data_fun, data, 0);
29 SIMCALL_SET_MC_VALUE(simcall, 0);
30 simcall_HANDLER_comm_wait(simcall, static_cast<simgrid::kernel::activity::CommImpl*>(comm.get()), timeout);
33 XBT_PRIVATE smx_activity_t simcall_HANDLER_comm_isend(
34 smx_simcall_t /*simcall*/, smx_actor_t src_proc, smx_mailbox_t mbox, double task_size, double rate, void* src_buff,
35 size_t src_buff_size, int (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
36 void (*clean_fun)(void*), // used to free the synchro in case of problem after a detached send
37 void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t), // used to copy data if not default one
38 void* data, int detached)
40 XBT_DEBUG("send from mailbox %p", mbox);
42 /* Prepare a synchro describing us, so that it gets passed to the user-provided filter of other side */
43 simgrid::kernel::activity::CommImplPtr this_comm = simgrid::kernel::activity::CommImplPtr(
44 new simgrid::kernel::activity::CommImpl(simgrid::kernel::activity::CommImpl::Type::SEND));
46 /* Look for communication synchro matching our needs. We also provide a description of
47 * ourself so that the other side also gets a chance of choosing if it wants to match with us.
49 * If it is not found then push our communication into the rendez-vous point */
50 simgrid::kernel::activity::CommImplPtr other_comm =
51 mbox->find_matching_comm(simgrid::kernel::activity::CommImpl::Type::RECEIVE, match_fun, data, this_comm,
52 /*done*/ false, /*remove_matching*/ true);
55 other_comm = std::move(this_comm);
57 if (mbox->permanent_receiver_ != nullptr) {
58 // this mailbox is for small messages, which have to be sent right now
59 other_comm->state_ = SIMIX_READY;
60 other_comm->dst_actor_ = mbox->permanent_receiver_.get();
61 mbox->done_comm_queue_.push_back(other_comm);
62 XBT_DEBUG("pushing a message into the permanent receive list %p, comm %p", mbox, other_comm.get());
65 mbox->push(other_comm);
68 XBT_DEBUG("Receive already pushed");
70 other_comm->state_ = SIMIX_READY;
71 other_comm->type = simgrid::kernel::activity::CommImpl::Type::READY;
73 src_proc->comms.push_back(other_comm);
76 other_comm->detached = true;
77 other_comm->clean_fun = clean_fun;
79 other_comm->clean_fun = nullptr;
82 /* Setup the communication synchro */
83 other_comm->src_actor_ = src_proc;
84 other_comm->task_size_ = task_size;
85 other_comm->rate_ = rate;
86 other_comm->src_buff_ = src_buff;
87 other_comm->src_buff_size_ = src_buff_size;
88 other_comm->src_data_ = data;
90 other_comm->match_fun = match_fun;
91 other_comm->copy_data_fun = copy_data_fun;
93 if (MC_is_active() || MC_record_replay_is_active()) {
94 other_comm->state_ = SIMIX_RUNNING;
95 return (detached ? nullptr : other_comm);
100 return (detached ? nullptr : other_comm);
103 XBT_PRIVATE void simcall_HANDLER_comm_recv(smx_simcall_t simcall, smx_actor_t receiver, smx_mailbox_t mbox,
104 void* dst_buff, size_t* dst_buff_size,
105 int (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
106 void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t),
107 void* data, double timeout, double rate)
109 smx_activity_t comm = simcall_HANDLER_comm_irecv(simcall, receiver, mbox, dst_buff, dst_buff_size, match_fun,
110 copy_data_fun, data, rate);
111 SIMCALL_SET_MC_VALUE(simcall, 0);
112 simcall_HANDLER_comm_wait(simcall, static_cast<simgrid::kernel::activity::CommImpl*>(comm.get()), timeout);
115 XBT_PRIVATE smx_activity_t simcall_HANDLER_comm_irecv(
116 smx_simcall_t /*simcall*/, smx_actor_t receiver, smx_mailbox_t mbox, void* dst_buff, size_t* dst_buff_size,
117 simix_match_func_t match_fun, void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t),
118 void* data, double rate)
120 simgrid::kernel::activity::CommImplPtr this_synchro = simgrid::kernel::activity::CommImplPtr(
121 new simgrid::kernel::activity::CommImpl(simgrid::kernel::activity::CommImpl::Type::RECEIVE));
122 XBT_DEBUG("recv from mbox %p. this_synchro=%p", mbox, this_synchro.get());
124 simgrid::kernel::activity::CommImplPtr other_comm;
125 // communication already done, get it inside the list of completed comms
126 if (mbox->permanent_receiver_ != nullptr && not mbox->done_comm_queue_.empty()) {
128 XBT_DEBUG("We have a comm that has probably already been received, trying to match it, to skip the communication");
129 // find a match in the list of already received comms
130 other_comm = mbox->find_matching_comm(simgrid::kernel::activity::CommImpl::Type::SEND, match_fun, data,
131 this_synchro, /*done*/ true,
132 /*remove_matching*/ true);
133 // if not found, assume the receiver came first, register it to the mailbox in the classical way
134 if (not other_comm) {
135 XBT_DEBUG("We have messages in the permanent receive list, but not the one we are looking for, pushing request "
137 other_comm = std::move(this_synchro);
138 mbox->push(other_comm);
140 if (other_comm->surf_action_ && other_comm->remains() < 1e-12) {
141 XBT_DEBUG("comm %p has been already sent, and is finished, destroy it", other_comm.get());
142 other_comm->state_ = SIMIX_DONE;
143 other_comm->type = simgrid::kernel::activity::CommImpl::Type::DONE;
144 other_comm->mbox = nullptr;
148 /* Prepare a comm describing us, so that it gets passed to the user-provided filter of other side */
150 /* Look for communication activity matching our needs. We also provide a description of
151 * ourself so that the other side also gets a chance of choosing if it wants to match with us.
153 * If it is not found then push our communication into the rendez-vous point */
154 other_comm = mbox->find_matching_comm(simgrid::kernel::activity::CommImpl::Type::SEND, match_fun, data,
155 this_synchro, /*done*/ false,
156 /*remove_matching*/ true);
158 if (other_comm == nullptr) {
159 XBT_DEBUG("Receive pushed first (%zu comm enqueued so far)", mbox->comm_queue_.size());
160 other_comm = std::move(this_synchro);
161 mbox->push(other_comm);
163 XBT_DEBUG("Match my %p with the existing %p", this_synchro.get(), other_comm.get());
165 other_comm->state_ = SIMIX_READY;
166 other_comm->type = simgrid::kernel::activity::CommImpl::Type::READY;
168 receiver->comms.push_back(other_comm);
171 /* Setup communication synchro */
172 other_comm->dst_actor_ = receiver;
173 other_comm->dst_buff_ = dst_buff;
174 other_comm->dst_buff_size_ = dst_buff_size;
175 other_comm->dst_data_ = data;
177 if (rate > -1.0 && (other_comm->rate_ < 0.0 || rate < other_comm->rate_))
178 other_comm->rate_ = rate;
180 other_comm->match_fun = match_fun;
181 other_comm->copy_data_fun = copy_data_fun;
183 if (MC_is_active() || MC_record_replay_is_active()) {
184 other_comm->state_ = SIMIX_RUNNING;
191 void simcall_HANDLER_comm_wait(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comm, double timeout)
193 /* Associate this simcall to the wait synchro */
194 XBT_DEBUG("simcall_HANDLER_comm_wait, %p", comm);
196 comm->simcalls_.push_back(simcall);
197 simcall->issuer->waiting_synchro = comm;
199 if (MC_is_active() || MC_record_replay_is_active()) {
200 int idx = SIMCALL_GET_MC_VALUE(simcall);
202 comm->state_ = SIMIX_DONE;
204 /* If we reached this point, the wait simcall must have a timeout */
205 /* Otherwise it shouldn't be enabled and executed by the MC */
209 if (comm->src_actor_ == simcall->issuer)
210 comm->state_ = SIMIX_SRC_TIMEOUT;
212 comm->state_ = SIMIX_DST_TIMEOUT;
219 /* If the synchro has already finish perform the error handling, */
220 /* otherwise set up a waiting timeout on the right side */
221 if (comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING) {
223 } else { /* we need a sleep action (even when there is no timeout) to be notified of host failures */
224 simgrid::kernel::resource::Action* sleep = simcall->issuer->get_host()->pimpl_cpu->sleep(timeout);
225 sleep->set_data(comm);
227 if (simcall->issuer == comm->src_actor_)
228 comm->src_timeout_ = sleep;
230 comm->dst_timeout_ = sleep;
234 void simcall_HANDLER_comm_test(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comm)
238 if (MC_is_active() || MC_record_replay_is_active()) {
239 res = comm->src_actor_ && comm->dst_actor_;
241 comm->state_ = SIMIX_DONE;
243 res = comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING;
246 simcall_comm_test__set__result(simcall, res);
247 if (simcall_comm_test__get__result(simcall)) {
248 comm->simcalls_.push_back(simcall);
251 SIMIX_simcall_answer(simcall);
255 void simcall_HANDLER_comm_testany(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comms[], size_t count)
257 // The default result is -1 -- this means, "nothing is ready".
258 // It can be changed below, but only if something matches.
259 simcall_comm_testany__set__result(simcall, -1);
261 if (MC_is_active() || MC_record_replay_is_active()) {
262 int idx = SIMCALL_GET_MC_VALUE(simcall);
264 SIMIX_simcall_answer(simcall);
266 simgrid::kernel::activity::CommImpl* comm = comms[idx];
267 simcall_comm_testany__set__result(simcall, idx);
268 comm->simcalls_.push_back(simcall);
269 comm->state_ = SIMIX_DONE;
275 for (std::size_t i = 0; i != count; ++i) {
276 simgrid::kernel::activity::ActivityImplPtr comm = comms[i];
277 if (comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING) {
278 simcall_comm_testany__set__result(simcall, i);
279 comm->simcalls_.push_back(simcall);
284 SIMIX_simcall_answer(simcall);
287 static void SIMIX_waitany_remove_simcall_from_actions(smx_simcall_t simcall)
289 smx_activity_t* synchros = simcall_comm_waitany__get__comms(simcall);
290 size_t count = simcall_comm_waitany__get__count(simcall);
292 for (size_t i = 0; i < count; i++) {
293 // Remove the first occurence of simcall:
294 smx_activity_t& synchro = synchros[i];
295 auto j = boost::range::find(synchro->simcalls_, simcall);
296 if (j != synchro->simcalls_.end())
297 synchro->simcalls_.erase(j);
300 void simcall_HANDLER_comm_waitany(smx_simcall_t simcall, smx_activity_t* synchros, size_t count, double timeout)
302 if (MC_is_active() || MC_record_replay_is_active()) {
304 xbt_die("Timeout not implemented for waitany in the model-checker");
305 int idx = SIMCALL_GET_MC_VALUE(simcall);
306 smx_activity_t& synchro = synchros[idx];
307 synchro->simcalls_.push_back(simcall);
308 simcall_comm_waitany__set__result(simcall, idx);
309 synchro->state_ = SIMIX_DONE;
315 simcall->timer = NULL;
317 simcall->timer = simgrid::simix::Timer::set(SIMIX_get_clock() + timeout, [simcall]() {
318 SIMIX_waitany_remove_simcall_from_actions(simcall);
319 simcall_comm_waitany__set__result(simcall, -1);
320 SIMIX_simcall_answer(simcall);
324 for (size_t i = 0; i < count; i++) {
325 /* associate this simcall to the the synchro */
326 smx_activity_t& synchro = synchros[i];
327 synchro->simcalls_.push_back(simcall);
329 /* see if the synchro is already finished */
330 if (synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING) {
337 /******************************************************************************/
338 /* SIMIX_comm_copy_data callbacks */
339 /******************************************************************************/
340 static void (*SIMIX_comm_copy_data_callback)(simgrid::kernel::activity::CommImpl*, void*,
341 size_t) = &SIMIX_comm_copy_pointer_callback;
343 void SIMIX_comm_copy_buffer_callback(simgrid::kernel::activity::CommImpl* comm, void* buff, size_t buff_size)
345 XBT_DEBUG("Copy the data over");
346 memcpy(comm->dst_buff_, buff, buff_size);
347 if (comm->detached) { // if this is a detached send, the source buffer was duplicated by SMPI sender to make the
348 // original buffer available to the application ASAP
350 comm->src_buff_ = nullptr;
354 void SIMIX_comm_set_copy_data_callback(void (*callback)(simgrid::kernel::activity::CommImpl*, void*, size_t))
356 SIMIX_comm_copy_data_callback = callback;
359 void SIMIX_comm_copy_pointer_callback(simgrid::kernel::activity::CommImpl* comm, void* buff, size_t buff_size)
361 xbt_assert((buff_size == sizeof(void*)), "Cannot copy %zu bytes: must be sizeof(void*)", buff_size);
362 *(void**)(comm->dst_buff_) = buff;
369 CommImpl::CommImpl(CommImpl::Type type) : type(type)
371 state_ = SIMIX_WAITING;
374 XBT_DEBUG("Create comm activity %p", this);
377 CommImpl::~CommImpl()
379 XBT_DEBUG("Really free communication %p", this);
383 if (detached && state_ != SIMIX_DONE) {
384 /* the communication has failed and was detached:
385 * we have to free the buffer */
387 clean_fun(src_buff_);
395 /** @brief Starts the simulation of a communication synchro. */
396 void CommImpl::start()
398 /* If both the sender and the receiver are already there, start the communication */
399 if (state_ == SIMIX_READY) {
401 s4u::Host* sender = src_actor_->get_host();
402 s4u::Host* receiver = dst_actor_->get_host();
404 surf_action_ = surf_network_model->communicate(sender, receiver, task_size_, rate_);
405 surf_action_->set_data(this);
406 state_ = SIMIX_RUNNING;
408 XBT_DEBUG("Starting communication %p from '%s' to '%s' (surf_action: %p)", this, sender->get_cname(),
409 receiver->get_cname(), surf_action_);
411 /* If a link is failed, detect it immediately */
412 if (surf_action_->get_state() == resource::Action::State::FAILED) {
413 XBT_DEBUG("Communication from '%s' to '%s' failed to start because of a link failure", sender->get_cname(),
414 receiver->get_cname());
415 state_ = SIMIX_LINK_FAILURE;
418 } else if (src_actor_->is_suspended() || dst_actor_->is_suspended()) {
419 /* If any of the process is suspended, create the synchro but stop its execution,
420 it will be restarted when the sender process resume */
421 if (src_actor_->is_suspended())
422 XBT_DEBUG("The communication is suspended on startup because src (%s@%s) was suspended since it initiated the "
424 src_actor_->get_cname(), src_actor_->get_host()->get_cname());
426 XBT_DEBUG("The communication is suspended on startup because dst (%s@%s) was suspended since it initiated the "
428 dst_actor_->get_cname(), dst_actor_->get_host()->get_cname());
430 surf_action_->suspend();
435 /** @brief Copy the communication data from the sender's buffer to the receiver's one */
436 void CommImpl::copy_data()
438 size_t buff_size = src_buff_size_;
439 /* If there is no data to copy then return */
440 if (not src_buff_ || not dst_buff_ || copied)
443 XBT_DEBUG("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)", this,
444 src_actor_ ? src_actor_->get_host()->get_cname() : "a finished process", src_buff_,
445 dst_actor_ ? dst_actor_->get_host()->get_cname() : "a finished process", dst_buff_, buff_size);
447 /* Copy at most dst_buff_size bytes of the message to receiver's buffer */
449 buff_size = std::min(buff_size, *(dst_buff_size_));
451 /* Update the receiver's buffer size to the copied amount */
453 *dst_buff_size_ = buff_size;
457 copy_data_fun(this, src_buff_, buff_size);
459 SIMIX_comm_copy_data_callback(this, src_buff_, buff_size);
462 /* Set the copied flag so we copy data only once */
463 /* (this function might be called from both communication ends) */
467 void CommImpl::suspend()
469 /* FIXME: shall we suspend also the timeout synchro? */
471 surf_action_->suspend();
472 /* if not created yet, the action will be suspended on creation, in CommImpl::start() */
475 void CommImpl::resume()
477 /*FIXME: check what happen with the timeouts */
479 surf_action_->resume();
480 /* in the other case, the synchro were not really suspended yet, see CommImpl::suspend() and CommImpl::start() */
483 void CommImpl::cancel()
485 /* if the synchro is a waiting state means that it is still in a mbox so remove from it and delete it */
486 if (state_ == SIMIX_WAITING) {
488 state_ = SIMIX_CANCELED;
489 } else if (not MC_is_active() /* when running the MC there are no surf actions */
490 && not MC_record_replay_is_active() && (state_ == SIMIX_READY || state_ == SIMIX_RUNNING)) {
491 surf_action_->cancel();
495 /** @brief get the amount remaining from the communication */
496 double CommImpl::remains()
498 return surf_action_->get_remains();
501 /** @brief This is part of the cleanup process, probably an internal command */
502 void CommImpl::cleanupSurf()
505 surf_action_->unref();
506 surf_action_ = nullptr;
510 src_timeout_->unref();
511 src_timeout_ = nullptr;
515 dst_timeout_->unref();
516 dst_timeout_ = nullptr;
520 void CommImpl::post()
522 /* Update synchro state */
523 if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FINISHED)
524 state_ = SIMIX_SRC_TIMEOUT;
525 else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FINISHED)
526 state_ = SIMIX_DST_TIMEOUT;
527 else if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FAILED)
528 state_ = SIMIX_SRC_HOST_FAILURE;
529 else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FAILED)
530 state_ = SIMIX_DST_HOST_FAILURE;
531 else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
532 state_ = SIMIX_LINK_FAILURE;
536 XBT_DEBUG("SIMIX_post_comm: comm %p, state %d, src_proc %p, dst_proc %p, detached: %d", this, (int)state_,
537 src_actor_.get(), dst_actor_.get(), detached);
539 /* destroy the surf actions associated with the Simix communication */
542 /* if there are simcalls associated with the synchro, then answer them */
543 if (not simcalls_.empty()) {
548 void CommImpl::finish()
550 while (not simcalls_.empty()) {
551 smx_simcall_t simcall = simcalls_.front();
552 simcalls_.pop_front();
554 /* If a waitany simcall is waiting for this synchro to finish, then remove it from the other synchros in the waitany
555 * list. Afterwards, get the position of the actual synchro in the waitany list and return it as the result of the
558 if (simcall->call == SIMCALL_NONE) // FIXME: maybe a better way to handle this case
559 continue; // if process handling comm is killed
560 if (simcall->call == SIMCALL_COMM_WAITANY) {
561 SIMIX_waitany_remove_simcall_from_actions(simcall);
562 if (simcall->timer) {
563 simcall->timer->remove();
564 simcall->timer = nullptr;
566 if (not MC_is_active() && not MC_record_replay_is_active()) {
567 CommImpl** comms = simcall_comm_waitany__get__comms(simcall);
568 size_t count = simcall_comm_waitany__get__count(simcall);
569 CommImpl** element = std::find(comms, comms + count, this);
570 int rank = (element != comms + count) ? element - comms : -1;
571 simcall_comm_waitany__set__result(simcall, rank);
575 /* If the synchro is still in a rendez-vous point then remove from it */
579 XBT_DEBUG("CommImpl::finish(): synchro state = %d", static_cast<int>(state_));
581 /* Check out for errors */
583 if (not simcall->issuer->get_host()->is_on()) {
584 simcall->issuer->context_->iwannadie = true;
585 simcall->issuer->exception_ =
586 std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed"));
591 XBT_DEBUG("Communication %p complete!", this);
595 case SIMIX_SRC_TIMEOUT:
596 simcall->issuer->exception_ = std::make_exception_ptr(
597 simgrid::TimeoutError(XBT_THROW_POINT, "Communication timeouted because of the sender"));
600 case SIMIX_DST_TIMEOUT:
601 simcall->issuer->exception_ = std::make_exception_ptr(
602 simgrid::TimeoutError(XBT_THROW_POINT, "Communication timeouted because of the receiver"));
605 case SIMIX_SRC_HOST_FAILURE:
606 if (simcall->issuer == src_actor_)
607 simcall->issuer->context_->iwannadie = true;
609 simcall->issuer->exception_ =
610 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Remote peer failed"));
613 case SIMIX_DST_HOST_FAILURE:
614 if (simcall->issuer == dst_actor_)
615 simcall->issuer->context_->iwannadie = true;
617 simcall->issuer->exception_ =
618 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Remote peer failed"));
621 case SIMIX_LINK_FAILURE:
622 XBT_DEBUG("Link failure in synchro %p between '%s' and '%s': posting an exception to the issuer: %s (%p) "
624 this, src_actor_ ? src_actor_->get_host()->get_cname() : nullptr,
625 dst_actor_ ? dst_actor_->get_host()->get_cname() : nullptr, simcall->issuer->get_cname(),
626 simcall->issuer, detached);
627 if (src_actor_ == simcall->issuer) {
628 XBT_DEBUG("I'm source");
629 } else if (dst_actor_ == simcall->issuer) {
630 XBT_DEBUG("I'm dest");
632 XBT_DEBUG("I'm neither source nor dest");
634 simcall->issuer->throw_exception(
635 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Link failure")));
639 if (simcall->issuer == dst_actor_)
640 simcall->issuer->exception_ = std::make_exception_ptr(
641 simgrid::CancelException(XBT_THROW_POINT, "Communication canceled by the sender"));
643 simcall->issuer->exception_ = std::make_exception_ptr(
644 simgrid::CancelException(XBT_THROW_POINT, "Communication canceled by the receiver"));
648 xbt_die("Unexpected synchro state in CommImpl::finish: %d", static_cast<int>(state_));
651 /* if there is an exception during a waitany or a testany, indicate the position of the failed communication */
652 if (simcall->issuer->exception_ &&
653 (simcall->call == SIMCALL_COMM_WAITANY || simcall->call == SIMCALL_COMM_TESTANY)) {
654 // First retrieve the rank of our failing synchro
657 if (simcall->call == SIMCALL_COMM_WAITANY) {
658 comms = simcall_comm_waitany__get__comms(simcall);
659 count = simcall_comm_waitany__get__count(simcall);
661 /* simcall->call == SIMCALL_COMM_TESTANY */
662 comms = simcall_comm_testany__get__comms(simcall);
663 count = simcall_comm_testany__get__count(simcall);
665 CommImpl** element = std::find(comms, comms + count, this);
666 int rank = (element != comms + count) ? element - comms : -1;
668 // In order to modify the exception we have to rethrow it:
670 std::rethrow_exception(simcall->issuer->exception_);
671 } catch (simgrid::TimeoutError& e) {
673 simcall->issuer->exception_ = std::make_exception_ptr(e);
674 } catch (simgrid::NetworkFailureException& e) {
676 simcall->issuer->exception_ = std::make_exception_ptr(e);
677 } catch (simgrid::CancelException& e) {
679 simcall->issuer->exception_ = std::make_exception_ptr(e);
683 simcall->issuer->waiting_synchro = nullptr;
684 simcall->issuer->comms.remove(this);
686 if (simcall->issuer == src_actor_) {
688 dst_actor_->comms.remove(this);
689 } else if (simcall->issuer == dst_actor_) {
691 src_actor_->comms.remove(this);
693 dst_actor_->comms.remove(this);
694 src_actor_->comms.remove(this);
698 if (simcall->issuer->get_host()->is_on())
699 SIMIX_simcall_answer(simcall);
701 simcall->issuer->context_->iwannadie = true;
705 } // namespace activity
706 } // namespace kernel
707 } // namespace simgrid