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 =
44 simgrid::kernel::activity::CommImplPtr(new simgrid::kernel::activity::CommImpl());
45 this_comm->set_type(simgrid::kernel::activity::CommImpl::Type::SEND);
47 /* Look for communication synchro matching our needs. We also provide a description of
48 * ourself so that the other side also gets a chance of choosing if it wants to match with us.
50 * If it is not found then push our communication into the rendez-vous point */
51 simgrid::kernel::activity::CommImplPtr other_comm =
52 mbox->find_matching_comm(simgrid::kernel::activity::CommImpl::Type::RECEIVE, match_fun, data, this_comm,
53 /*done*/ false, /*remove_matching*/ true);
56 other_comm = std::move(this_comm);
58 if (mbox->permanent_receiver_ != nullptr) {
59 // this mailbox is for small messages, which have to be sent right now
60 other_comm->state_ = SIMIX_READY;
61 other_comm->dst_actor_ = mbox->permanent_receiver_.get();
62 mbox->done_comm_queue_.push_back(other_comm);
63 XBT_DEBUG("pushing a message into the permanent receive list %p, comm %p", mbox, other_comm.get());
66 mbox->push(other_comm);
69 XBT_DEBUG("Receive already pushed");
71 other_comm->state_ = SIMIX_READY;
72 other_comm->set_type(simgrid::kernel::activity::CommImpl::Type::READY);
74 src_proc->comms.push_back(other_comm);
77 other_comm->detached = true;
78 other_comm->clean_fun = clean_fun;
80 other_comm->clean_fun = nullptr;
83 /* Setup the communication synchro */
84 other_comm->src_actor_ = src_proc;
85 other_comm->src_data_ = data;
86 (*other_comm).set_src_buff(src_buff, src_buff_size).set_size(task_size).set_rate(rate);
88 other_comm->match_fun = match_fun;
89 other_comm->copy_data_fun = copy_data_fun;
91 if (MC_is_active() || MC_record_replay_is_active()) {
92 other_comm->state_ = SIMIX_RUNNING;
93 return (detached ? nullptr : other_comm);
98 return (detached ? nullptr : other_comm);
101 XBT_PRIVATE void simcall_HANDLER_comm_recv(smx_simcall_t simcall, smx_actor_t receiver, smx_mailbox_t mbox,
102 void* dst_buff, size_t* dst_buff_size,
103 int (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
104 void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t),
105 void* data, double timeout, double rate)
107 smx_activity_t comm = simcall_HANDLER_comm_irecv(simcall, receiver, mbox, dst_buff, dst_buff_size, match_fun,
108 copy_data_fun, data, rate);
109 SIMCALL_SET_MC_VALUE(simcall, 0);
110 simcall_HANDLER_comm_wait(simcall, static_cast<simgrid::kernel::activity::CommImpl*>(comm.get()), timeout);
113 XBT_PRIVATE smx_activity_t simcall_HANDLER_comm_irecv(
114 smx_simcall_t /*simcall*/, smx_actor_t receiver, smx_mailbox_t mbox, void* dst_buff, size_t* dst_buff_size,
115 simix_match_func_t match_fun, void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t),
116 void* data, double rate)
118 simgrid::kernel::activity::CommImplPtr this_synchro =
119 simgrid::kernel::activity::CommImplPtr(new simgrid::kernel::activity::CommImpl());
120 this_synchro->set_type(simgrid::kernel::activity::CommImpl::Type::RECEIVE);
121 XBT_DEBUG("recv from mbox %p. this_synchro=%p", mbox, this_synchro.get());
123 simgrid::kernel::activity::CommImplPtr other_comm;
124 // communication already done, get it inside the list of completed comms
125 if (mbox->permanent_receiver_ != nullptr && not mbox->done_comm_queue_.empty()) {
127 XBT_DEBUG("We have a comm that has probably already been received, trying to match it, to skip the communication");
128 // find a match in the list of already received comms
129 other_comm = mbox->find_matching_comm(simgrid::kernel::activity::CommImpl::Type::SEND, match_fun, data,
130 this_synchro, /*done*/ true,
131 /*remove_matching*/ true);
132 // if not found, assume the receiver came first, register it to the mailbox in the classical way
133 if (not other_comm) {
134 XBT_DEBUG("We have messages in the permanent receive list, but not the one we are looking for, pushing request "
136 other_comm = std::move(this_synchro);
137 mbox->push(other_comm);
139 if (other_comm->surf_action_ && other_comm->remains() < 1e-12) {
140 XBT_DEBUG("comm %p has been already sent, and is finished, destroy it", other_comm.get());
141 other_comm->state_ = SIMIX_DONE;
142 other_comm->set_type(simgrid::kernel::activity::CommImpl::Type::DONE);
143 other_comm->mbox = nullptr;
147 /* Prepare a comm describing us, so that it gets passed to the user-provided filter of other side */
149 /* Look for communication activity matching our needs. We also provide a description of
150 * ourself so that the other side also gets a chance of choosing if it wants to match with us.
152 * If it is not found then push our communication into the rendez-vous point */
153 other_comm = mbox->find_matching_comm(simgrid::kernel::activity::CommImpl::Type::SEND, match_fun, data,
154 this_synchro, /*done*/ false,
155 /*remove_matching*/ true);
157 if (other_comm == nullptr) {
158 XBT_DEBUG("Receive pushed first (%zu comm enqueued so far)", mbox->comm_queue_.size());
159 other_comm = std::move(this_synchro);
160 mbox->push(other_comm);
162 XBT_DEBUG("Match my %p with the existing %p", this_synchro.get(), other_comm.get());
164 other_comm->state_ = SIMIX_READY;
165 other_comm->set_type(simgrid::kernel::activity::CommImpl::Type::READY);
167 receiver->comms.push_back(other_comm);
170 /* Setup communication synchro */
171 other_comm->dst_actor_ = receiver;
172 other_comm->dst_data_ = data;
173 other_comm->set_dst_buff(dst_buff, dst_buff_size);
175 if (rate > -1.0 && (other_comm->get_rate() < 0.0 || rate < other_comm->get_rate()))
176 other_comm->set_rate(rate);
178 other_comm->match_fun = match_fun;
179 other_comm->copy_data_fun = copy_data_fun;
181 if (MC_is_active() || MC_record_replay_is_active()) {
182 other_comm->state_ = SIMIX_RUNNING;
189 void simcall_HANDLER_comm_wait(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comm, double timeout)
191 /* Associate this simcall to the wait synchro */
192 XBT_DEBUG("simcall_HANDLER_comm_wait, %p", comm);
194 comm->simcalls_.push_back(simcall);
195 simcall->issuer->waiting_synchro = comm;
197 if (MC_is_active() || MC_record_replay_is_active()) {
198 int idx = SIMCALL_GET_MC_VALUE(simcall);
200 comm->state_ = SIMIX_DONE;
202 /* If we reached this point, the wait simcall must have a timeout */
203 /* Otherwise it shouldn't be enabled and executed by the MC */
207 if (comm->src_actor_ == simcall->issuer)
208 comm->state_ = SIMIX_SRC_TIMEOUT;
210 comm->state_ = SIMIX_DST_TIMEOUT;
217 /* If the synchro has already finish perform the error handling, */
218 /* otherwise set up a waiting timeout on the right side */
219 if (comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING) {
221 } else { /* we need a sleep action (even when there is no timeout) to be notified of host failures */
222 simgrid::kernel::resource::Action* sleep = simcall->issuer->get_host()->pimpl_cpu->sleep(timeout);
223 sleep->set_data(comm);
225 if (simcall->issuer == comm->src_actor_)
226 comm->src_timeout_ = sleep;
228 comm->dst_timeout_ = sleep;
232 void simcall_HANDLER_comm_test(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comm)
236 if (MC_is_active() || MC_record_replay_is_active()) {
237 res = comm->src_actor_ && comm->dst_actor_;
239 comm->state_ = SIMIX_DONE;
241 res = comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING;
244 simcall_comm_test__set__result(simcall, res);
245 if (simcall_comm_test__get__result(simcall)) {
246 comm->simcalls_.push_back(simcall);
249 SIMIX_simcall_answer(simcall);
253 void simcall_HANDLER_comm_testany(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comms[], size_t count)
255 // The default result is -1 -- this means, "nothing is ready".
256 // It can be changed below, but only if something matches.
257 simcall_comm_testany__set__result(simcall, -1);
259 if (MC_is_active() || MC_record_replay_is_active()) {
260 int idx = SIMCALL_GET_MC_VALUE(simcall);
262 SIMIX_simcall_answer(simcall);
264 simgrid::kernel::activity::CommImpl* comm = comms[idx];
265 simcall_comm_testany__set__result(simcall, idx);
266 comm->simcalls_.push_back(simcall);
267 comm->state_ = SIMIX_DONE;
273 for (std::size_t i = 0; i != count; ++i) {
274 simgrid::kernel::activity::CommImpl* comm = comms[i];
275 if (comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING) {
276 simcall_comm_testany__set__result(simcall, i);
277 comm->simcalls_.push_back(simcall);
282 SIMIX_simcall_answer(simcall);
285 static void SIMIX_waitany_remove_simcall_from_actions(smx_simcall_t simcall)
287 simgrid::kernel::activity::CommImpl** comms = simcall_comm_waitany__get__comms(simcall);
288 size_t count = simcall_comm_waitany__get__count(simcall);
290 for (size_t i = 0; i < count; i++) {
291 // Remove the first occurence of simcall:
292 auto* comm = comms[i];
293 auto j = boost::range::find(comm->simcalls_, simcall);
294 if (j != comm->simcalls_.end())
295 comm->simcalls_.erase(j);
298 void simcall_HANDLER_comm_waitany(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comms[], size_t count,
301 if (MC_is_active() || MC_record_replay_is_active()) {
303 xbt_die("Timeout not implemented for waitany in the model-checker");
304 int idx = SIMCALL_GET_MC_VALUE(simcall);
305 auto* comm = comms[idx];
306 comm->simcalls_.push_back(simcall);
307 simcall_comm_waitany__set__result(simcall, idx);
308 comm->state_ = SIMIX_DONE;
314 simcall->timer = NULL;
316 simcall->timer = simgrid::simix::Timer::set(SIMIX_get_clock() + timeout, [simcall]() {
317 SIMIX_waitany_remove_simcall_from_actions(simcall);
318 simcall_comm_waitany__set__result(simcall, -1);
319 SIMIX_simcall_answer(simcall);
323 for (size_t i = 0; i < count; i++) {
324 /* associate this simcall to the the synchro */
325 auto* comm = comms[i];
326 comm->simcalls_.push_back(simcall);
328 /* see if the synchro is already finished */
329 if (comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING) {
336 /******************************************************************************/
337 /* SIMIX_comm_copy_data callbacks */
338 /******************************************************************************/
339 static void (*SIMIX_comm_copy_data_callback)(simgrid::kernel::activity::CommImpl*, void*,
340 size_t) = &SIMIX_comm_copy_pointer_callback;
342 void SIMIX_comm_copy_buffer_callback(simgrid::kernel::activity::CommImpl* comm, void* buff, size_t buff_size)
344 XBT_DEBUG("Copy the data over");
345 memcpy(comm->dst_buff_, buff, buff_size);
346 if (comm->detached) { // if this is a detached send, the source buffer was duplicated by SMPI sender to make the
347 // original buffer available to the application ASAP
349 comm->src_buff_ = nullptr;
353 void SIMIX_comm_set_copy_data_callback(void (*callback)(simgrid::kernel::activity::CommImpl*, void*, size_t))
355 SIMIX_comm_copy_data_callback = callback;
358 void SIMIX_comm_copy_pointer_callback(simgrid::kernel::activity::CommImpl* comm, void* buff, size_t buff_size)
360 xbt_assert((buff_size == sizeof(void*)), "Cannot copy %zu bytes: must be sizeof(void*)", buff_size);
361 *(void**)(comm->dst_buff_) = buff;
368 CommImpl& CommImpl::set_type(CommImpl::Type type)
374 CommImpl& CommImpl::set_size(double size)
380 CommImpl& CommImpl::set_rate(double rate)
386 CommImpl& CommImpl::set_src_buff(void* buff, size_t size)
389 src_buff_size_ = size;
393 CommImpl& CommImpl::set_dst_buff(void* buff, size_t* size)
396 dst_buff_size_ = size;
400 CommImpl::~CommImpl()
402 XBT_DEBUG("Really free communication %p in state %d (detached = %d)", this, static_cast<int>(state_),
403 static_cast<int>(detached));
407 if (detached && state_ != SIMIX_DONE) {
408 /* the communication has failed and was detached:
409 * we have to free the buffer */
411 clean_fun(src_buff_);
418 /** @brief Starts the simulation of a communication synchro. */
419 CommImpl* CommImpl::start()
421 /* If both the sender and the receiver are already there, start the communication */
422 if (state_ == SIMIX_READY) {
424 s4u::Host* sender = src_actor_->get_host();
425 s4u::Host* receiver = dst_actor_->get_host();
427 surf_action_ = surf_network_model->communicate(sender, receiver, size_, rate_);
428 surf_action_->set_data(this);
429 state_ = SIMIX_RUNNING;
431 XBT_DEBUG("Starting communication %p from '%s' to '%s' (surf_action: %p)", this, sender->get_cname(),
432 receiver->get_cname(), surf_action_);
434 /* If a link is failed, detect it immediately */
435 if (surf_action_->get_state() == resource::Action::State::FAILED) {
436 XBT_DEBUG("Communication from '%s' to '%s' failed to start because of a link failure", sender->get_cname(),
437 receiver->get_cname());
438 state_ = SIMIX_LINK_FAILURE;
441 } else if (src_actor_->is_suspended() || dst_actor_->is_suspended()) {
442 /* If any of the process is suspended, create the synchro but stop its execution,
443 it will be restarted when the sender process resume */
444 if (src_actor_->is_suspended())
445 XBT_DEBUG("The communication is suspended on startup because src (%s@%s) was suspended since it initiated the "
447 src_actor_->get_cname(), src_actor_->get_host()->get_cname());
449 XBT_DEBUG("The communication is suspended on startup because dst (%s@%s) was suspended since it initiated the "
451 dst_actor_->get_cname(), dst_actor_->get_host()->get_cname());
453 surf_action_->suspend();
460 /** @brief Copy the communication data from the sender's buffer to the receiver's one */
461 void CommImpl::copy_data()
463 size_t buff_size = src_buff_size_;
464 /* If there is no data to copy then return */
465 if (not src_buff_ || not dst_buff_ || copied)
468 XBT_DEBUG("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)", this,
469 src_actor_ ? src_actor_->get_host()->get_cname() : "a finished process", src_buff_,
470 dst_actor_ ? dst_actor_->get_host()->get_cname() : "a finished process", dst_buff_, buff_size);
472 /* Copy at most dst_buff_size bytes of the message to receiver's buffer */
474 buff_size = std::min(buff_size, *(dst_buff_size_));
476 /* Update the receiver's buffer size to the copied amount */
478 *dst_buff_size_ = buff_size;
482 copy_data_fun(this, src_buff_, buff_size);
484 SIMIX_comm_copy_data_callback(this, src_buff_, buff_size);
487 /* Set the copied flag so we copy data only once */
488 /* (this function might be called from both communication ends) */
492 void CommImpl::suspend()
494 /* FIXME: shall we suspend also the timeout synchro? */
496 surf_action_->suspend();
497 /* if not created yet, the action will be suspended on creation, in CommImpl::start() */
500 void CommImpl::resume()
502 /*FIXME: check what happen with the timeouts */
504 surf_action_->resume();
505 /* in the other case, the synchro were not really suspended yet, see CommImpl::suspend() and CommImpl::start() */
508 void CommImpl::cancel()
510 /* if the synchro is a waiting state means that it is still in a mbox so remove from it and delete it */
511 if (state_ == SIMIX_WAITING) {
514 state_ = SIMIX_CANCELED;
516 } else if (not MC_is_active() /* when running the MC there are no surf actions */
517 && not MC_record_replay_is_active() && (state_ == SIMIX_READY || state_ == SIMIX_RUNNING)) {
518 surf_action_->cancel();
522 /** @brief get the amount remaining from the communication */
523 double CommImpl::remains()
525 return surf_action_->get_remains();
528 /** @brief This is part of the cleanup process, probably an internal command */
529 void CommImpl::cleanupSurf()
532 surf_action_->unref();
533 surf_action_ = nullptr;
537 src_timeout_->unref();
538 src_timeout_ = nullptr;
542 dst_timeout_->unref();
543 dst_timeout_ = nullptr;
547 void CommImpl::post()
549 /* Update synchro state */
550 if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FINISHED)
551 state_ = SIMIX_SRC_TIMEOUT;
552 else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FINISHED)
553 state_ = SIMIX_DST_TIMEOUT;
554 else if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FAILED)
555 state_ = SIMIX_SRC_HOST_FAILURE;
556 else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FAILED)
557 state_ = SIMIX_DST_HOST_FAILURE;
558 else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
559 state_ = SIMIX_LINK_FAILURE;
563 XBT_DEBUG("SIMIX_post_comm: comm %p, state %d, src_proc %p, dst_proc %p, detached: %d", this, (int)state_,
564 src_actor_.get(), dst_actor_.get(), detached);
566 /* destroy the surf actions associated with the Simix communication */
569 /* if there are simcalls associated with the synchro, then answer them */
570 if (not simcalls_.empty()) {
575 void CommImpl::finish()
577 while (not simcalls_.empty()) {
578 smx_simcall_t simcall = simcalls_.front();
579 simcalls_.pop_front();
581 /* If a waitany simcall is waiting for this synchro to finish, then remove it from the other synchros in the waitany
582 * list. Afterwards, get the position of the actual synchro in the waitany list and return it as the result of the
585 if (simcall->call == SIMCALL_NONE) // FIXME: maybe a better way to handle this case
586 continue; // if process handling comm is killed
587 if (simcall->call == SIMCALL_COMM_WAITANY) {
588 SIMIX_waitany_remove_simcall_from_actions(simcall);
589 if (simcall->timer) {
590 simcall->timer->remove();
591 simcall->timer = nullptr;
593 if (not MC_is_active() && not MC_record_replay_is_active()) {
594 CommImpl** comms = simcall_comm_waitany__get__comms(simcall);
595 size_t count = simcall_comm_waitany__get__count(simcall);
596 CommImpl** element = std::find(comms, comms + count, this);
597 int rank = (element != comms + count) ? element - comms : -1;
598 simcall_comm_waitany__set__result(simcall, rank);
602 /* If the synchro is still in a rendez-vous point then remove from it */
606 XBT_DEBUG("CommImpl::finish(): synchro state = %d", static_cast<int>(state_));
608 /* Check out for errors */
610 if (not simcall->issuer->get_host()->is_on()) {
611 simcall->issuer->context_->iwannadie = true;
616 XBT_DEBUG("Communication %p complete!", this);
620 case SIMIX_SRC_TIMEOUT:
621 simcall->issuer->exception_ = std::make_exception_ptr(
622 simgrid::TimeoutError(XBT_THROW_POINT, "Communication timeouted because of the sender"));
625 case SIMIX_DST_TIMEOUT:
626 simcall->issuer->exception_ = std::make_exception_ptr(
627 simgrid::TimeoutError(XBT_THROW_POINT, "Communication timeouted because of the receiver"));
630 case SIMIX_SRC_HOST_FAILURE:
631 if (simcall->issuer == src_actor_)
632 simcall->issuer->context_->iwannadie = true;
634 simcall->issuer->exception_ =
635 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Remote peer failed"));
638 case SIMIX_DST_HOST_FAILURE:
639 if (simcall->issuer == dst_actor_)
640 simcall->issuer->context_->iwannadie = true;
642 simcall->issuer->exception_ =
643 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Remote peer failed"));
646 case SIMIX_LINK_FAILURE:
647 XBT_DEBUG("Link failure in synchro %p between '%s' and '%s': posting an exception to the issuer: %s (%p) "
649 this, src_actor_ ? src_actor_->get_host()->get_cname() : nullptr,
650 dst_actor_ ? dst_actor_->get_host()->get_cname() : nullptr, simcall->issuer->get_cname(),
651 simcall->issuer, detached);
652 if (src_actor_ == simcall->issuer) {
653 XBT_DEBUG("I'm source");
654 } else if (dst_actor_ == simcall->issuer) {
655 XBT_DEBUG("I'm dest");
657 XBT_DEBUG("I'm neither source nor dest");
659 simcall->issuer->throw_exception(
660 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Link failure")));
664 if (simcall->issuer == dst_actor_)
665 simcall->issuer->exception_ = std::make_exception_ptr(
666 simgrid::CancelException(XBT_THROW_POINT, "Communication canceled by the sender"));
668 simcall->issuer->exception_ = std::make_exception_ptr(
669 simgrid::CancelException(XBT_THROW_POINT, "Communication canceled by the receiver"));
673 xbt_die("Unexpected synchro state in CommImpl::finish: %d", static_cast<int>(state_));
676 /* if there is an exception during a waitany or a testany, indicate the position of the failed communication */
677 if (simcall->issuer->exception_ &&
678 (simcall->call == SIMCALL_COMM_WAITANY || simcall->call == SIMCALL_COMM_TESTANY)) {
679 // First retrieve the rank of our failing synchro
682 if (simcall->call == SIMCALL_COMM_WAITANY) {
683 comms = simcall_comm_waitany__get__comms(simcall);
684 count = simcall_comm_waitany__get__count(simcall);
686 /* simcall->call == SIMCALL_COMM_TESTANY */
687 comms = simcall_comm_testany__get__comms(simcall);
688 count = simcall_comm_testany__get__count(simcall);
690 CommImpl** element = std::find(comms, comms + count, this);
691 int rank = (element != comms + count) ? element - comms : -1;
693 // In order to modify the exception we have to rethrow it:
695 std::rethrow_exception(simcall->issuer->exception_);
696 } catch (simgrid::TimeoutError& e) {
698 simcall->issuer->exception_ = std::make_exception_ptr(e);
699 } catch (simgrid::NetworkFailureException& e) {
701 simcall->issuer->exception_ = std::make_exception_ptr(e);
702 } catch (simgrid::CancelException& e) {
704 simcall->issuer->exception_ = std::make_exception_ptr(e);
708 simcall->issuer->waiting_synchro = nullptr;
709 simcall->issuer->comms.remove(this);
711 if (simcall->issuer == src_actor_) {
713 dst_actor_->comms.remove(this);
714 } else if (simcall->issuer == dst_actor_) {
716 src_actor_->comms.remove(this);
718 dst_actor_->comms.remove(this);
719 src_actor_->comms.remove(this);
723 if (simcall->issuer->get_host()->is_on())
724 SIMIX_simcall_answer(simcall);
726 simcall->issuer->context_->iwannadie = true;
730 } // namespace activity
731 } // namespace kernel
732 } // namespace simgrid