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, comm, 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, comm, 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, smx_activity_t synchro, double timeout)
193 /* Associate this simcall to the wait synchro */
194 XBT_DEBUG("simcall_HANDLER_comm_wait, %p", synchro.get());
196 synchro->simcalls_.push_back(simcall);
197 simcall->issuer->waiting_synchro = synchro;
199 if (MC_is_active() || MC_record_replay_is_active()) {
200 int idx = SIMCALL_GET_MC_VALUE(simcall);
202 synchro->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 simgrid::kernel::activity::CommImplPtr comm =
210 boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro);
211 if (comm->src_actor_ == simcall->issuer)
212 comm->state_ = SIMIX_SRC_TIMEOUT;
214 comm->state_ = SIMIX_DST_TIMEOUT;
217 boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro)->finish();
221 /* If the synchro has already finish perform the error handling, */
222 /* otherwise set up a waiting timeout on the right side */
223 if (synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING) {
224 boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro)->finish();
225 } else { /* we need a sleep action (even when there is no timeout) to be notified of host failures */
226 simgrid::kernel::resource::Action* sleep = simcall->issuer->get_host()->pimpl_cpu->sleep(timeout);
227 sleep->set_data(synchro.get());
229 simgrid::kernel::activity::CommImplPtr comm =
230 boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro);
231 if (simcall->issuer == comm->src_actor_)
232 comm->src_timeout_ = sleep;
234 comm->dst_timeout_ = sleep;
238 void simcall_HANDLER_comm_test(smx_simcall_t simcall, smx_activity_t synchro)
240 simgrid::kernel::activity::CommImplPtr comm =
241 boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro);
245 if (MC_is_active() || MC_record_replay_is_active()) {
246 res = comm->src_actor_ && comm->dst_actor_;
248 synchro->state_ = SIMIX_DONE;
250 res = synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING;
253 simcall_comm_test__set__result(simcall, res);
254 if (simcall_comm_test__get__result(simcall)) {
255 synchro->simcalls_.push_back(simcall);
256 boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro)->finish();
258 SIMIX_simcall_answer(simcall);
262 void simcall_HANDLER_comm_testany(smx_simcall_t simcall, simgrid::kernel::activity::ActivityImplPtr comms[],
265 // The default result is -1 -- this means, "nothing is ready".
266 // It can be changed below, but only if something matches.
267 simcall_comm_testany__set__result(simcall, -1);
269 if (MC_is_active() || MC_record_replay_is_active()) {
270 int idx = SIMCALL_GET_MC_VALUE(simcall);
272 SIMIX_simcall_answer(simcall);
274 simgrid::kernel::activity::ActivityImplPtr synchro = comms[idx];
275 simcall_comm_testany__set__result(simcall, idx);
276 synchro->simcalls_.push_back(simcall);
277 synchro->state_ = SIMIX_DONE;
278 boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro)->finish();
283 for (std::size_t i = 0; i != count; ++i) {
284 simgrid::kernel::activity::ActivityImplPtr synchro = comms[i];
285 if (synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING) {
286 simcall_comm_testany__set__result(simcall, i);
287 synchro->simcalls_.push_back(simcall);
288 boost::static_pointer_cast<simgrid::kernel::activity::CommImpl>(synchro)->finish();
292 SIMIX_simcall_answer(simcall);
295 static void SIMIX_waitany_remove_simcall_from_actions(smx_simcall_t simcall)
297 unsigned int cursor = 0;
298 xbt_dynar_t synchros = simcall_comm_waitany__get__comms(simcall);
300 simgrid::kernel::activity::ActivityImpl* synchro;
301 xbt_dynar_foreach (synchros, cursor, synchro) {
302 // Remove the first occurence of simcall:
303 auto i = boost::range::find(synchro->simcalls_, simcall);
304 if (i != synchro->simcalls_.end())
305 synchro->simcalls_.erase(i);
308 void simcall_HANDLER_comm_waitany(smx_simcall_t simcall, xbt_dynar_t synchros, double timeout)
310 if (MC_is_active() || MC_record_replay_is_active()) {
312 xbt_die("Timeout not implemented for waitany in the model-checker");
313 int idx = SIMCALL_GET_MC_VALUE(simcall);
314 auto* synchro = xbt_dynar_get_as(synchros, idx, simgrid::kernel::activity::ActivityImpl*);
315 synchro->simcalls_.push_back(simcall);
316 simcall_comm_waitany__set__result(simcall, idx);
317 synchro->state_ = SIMIX_DONE;
323 simcall->timer = NULL;
325 simcall->timer = simgrid::simix::Timer::set(SIMIX_get_clock() + timeout, [simcall]() {
326 SIMIX_waitany_remove_simcall_from_actions(simcall);
327 simcall_comm_waitany__set__result(simcall, -1);
328 SIMIX_simcall_answer(simcall);
333 simgrid::kernel::activity::ActivityImpl* synchro;
334 xbt_dynar_foreach (synchros, cursor, synchro) {
335 /* associate this simcall to the the synchro */
336 synchro->simcalls_.push_back(simcall);
338 /* see if the synchro is already finished */
339 if (synchro->state_ != SIMIX_WAITING && synchro->state_ != SIMIX_RUNNING) {
346 /******************************************************************************/
347 /* SIMIX_comm_copy_data callbacks */
348 /******************************************************************************/
349 static void (*SIMIX_comm_copy_data_callback)(simgrid::kernel::activity::CommImpl*, void*,
350 size_t) = &SIMIX_comm_copy_pointer_callback;
352 void SIMIX_comm_copy_buffer_callback(simgrid::kernel::activity::CommImpl* comm, void* buff, size_t buff_size)
354 XBT_DEBUG("Copy the data over");
355 memcpy(comm->dst_buff_, buff, buff_size);
356 if (comm->detached) { // if this is a detached send, the source buffer was duplicated by SMPI sender to make the
357 // original buffer available to the application ASAP
359 comm->src_buff_ = nullptr;
363 void SIMIX_comm_set_copy_data_callback(void (*callback)(simgrid::kernel::activity::CommImpl*, void*, size_t))
365 SIMIX_comm_copy_data_callback = callback;
368 void SIMIX_comm_copy_pointer_callback(simgrid::kernel::activity::CommImpl* comm, void* buff, size_t buff_size)
370 xbt_assert((buff_size == sizeof(void*)), "Cannot copy %zu bytes: must be sizeof(void*)", buff_size);
371 *(void**)(comm->dst_buff_) = buff;
378 CommImpl::CommImpl(CommImpl::Type type) : type(type)
380 state_ = SIMIX_WAITING;
383 XBT_DEBUG("Create comm activity %p", this);
386 CommImpl::~CommImpl()
388 XBT_DEBUG("Really free communication %p", this);
392 if (detached && state_ != SIMIX_DONE) {
393 /* the communication has failed and was detached:
394 * we have to free the buffer */
396 clean_fun(src_buff_);
404 /** @brief Starts the simulation of a communication synchro. */
405 void CommImpl::start()
407 /* If both the sender and the receiver are already there, start the communication */
408 if (state_ == SIMIX_READY) {
410 s4u::Host* sender = src_actor_->get_host();
411 s4u::Host* receiver = dst_actor_->get_host();
413 surf_action_ = surf_network_model->communicate(sender, receiver, task_size_, rate_);
414 surf_action_->set_data(this);
415 state_ = SIMIX_RUNNING;
417 XBT_DEBUG("Starting communication %p from '%s' to '%s' (surf_action: %p)", this, sender->get_cname(),
418 receiver->get_cname(), surf_action_);
420 /* If a link is failed, detect it immediately */
421 if (surf_action_->get_state() == resource::Action::State::FAILED) {
422 XBT_DEBUG("Communication from '%s' to '%s' failed to start because of a link failure", sender->get_cname(),
423 receiver->get_cname());
424 state_ = SIMIX_LINK_FAILURE;
427 } else if (src_actor_->is_suspended() || dst_actor_->is_suspended()) {
428 /* If any of the process is suspended, create the synchro but stop its execution,
429 it will be restarted when the sender process resume */
430 if (src_actor_->is_suspended())
431 XBT_DEBUG("The communication is suspended on startup because src (%s@%s) was suspended since it initiated the "
433 src_actor_->get_cname(), src_actor_->get_host()->get_cname());
435 XBT_DEBUG("The communication is suspended on startup because dst (%s@%s) was suspended since it initiated the "
437 dst_actor_->get_cname(), dst_actor_->get_host()->get_cname());
439 surf_action_->suspend();
444 /** @brief Copy the communication data from the sender's buffer to the receiver's one */
445 void CommImpl::copy_data()
447 size_t buff_size = src_buff_size_;
448 /* If there is no data to copy then return */
449 if (not src_buff_ || not dst_buff_ || copied)
452 XBT_DEBUG("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)", this,
453 src_actor_ ? src_actor_->get_host()->get_cname() : "a finished process", src_buff_,
454 dst_actor_ ? dst_actor_->get_host()->get_cname() : "a finished process", dst_buff_, buff_size);
456 /* Copy at most dst_buff_size bytes of the message to receiver's buffer */
458 buff_size = std::min(buff_size, *(dst_buff_size_));
460 /* Update the receiver's buffer size to the copied amount */
462 *dst_buff_size_ = buff_size;
466 copy_data_fun(this, src_buff_, buff_size);
468 SIMIX_comm_copy_data_callback(this, src_buff_, buff_size);
471 /* Set the copied flag so we copy data only once */
472 /* (this function might be called from both communication ends) */
476 void CommImpl::suspend()
478 /* FIXME: shall we suspend also the timeout synchro? */
480 surf_action_->suspend();
481 /* if not created yet, the action will be suspended on creation, in CommImpl::start() */
484 void CommImpl::resume()
486 /*FIXME: check what happen with the timeouts */
488 surf_action_->resume();
489 /* in the other case, the synchro were not really suspended yet, see CommImpl::suspend() and CommImpl::start() */
492 void CommImpl::cancel()
494 /* if the synchro is a waiting state means that it is still in a mbox so remove from it and delete it */
495 if (state_ == SIMIX_WAITING) {
497 state_ = SIMIX_CANCELED;
498 } else if (not MC_is_active() /* when running the MC there are no surf actions */
499 && not MC_record_replay_is_active() && (state_ == SIMIX_READY || state_ == SIMIX_RUNNING)) {
500 surf_action_->cancel();
504 /** @brief get the amount remaining from the communication */
505 double CommImpl::remains()
507 return surf_action_->get_remains();
510 /** @brief This is part of the cleanup process, probably an internal command */
511 void CommImpl::cleanupSurf()
514 surf_action_->unref();
515 surf_action_ = nullptr;
519 src_timeout_->unref();
520 src_timeout_ = nullptr;
524 dst_timeout_->unref();
525 dst_timeout_ = nullptr;
529 void CommImpl::post()
531 /* Update synchro state */
532 if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FINISHED)
533 state_ = SIMIX_SRC_TIMEOUT;
534 else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FINISHED)
535 state_ = SIMIX_DST_TIMEOUT;
536 else if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FAILED)
537 state_ = SIMIX_SRC_HOST_FAILURE;
538 else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FAILED)
539 state_ = SIMIX_DST_HOST_FAILURE;
540 else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
541 state_ = SIMIX_LINK_FAILURE;
545 XBT_DEBUG("SIMIX_post_comm: comm %p, state %d, src_proc %p, dst_proc %p, detached: %d", this, (int)state_,
546 src_actor_.get(), dst_actor_.get(), detached);
548 /* destroy the surf actions associated with the Simix communication */
551 /* if there are simcalls associated with the synchro, then answer them */
552 if (not simcalls_.empty()) {
557 void CommImpl::finish()
559 while (not simcalls_.empty()) {
560 smx_simcall_t simcall = simcalls_.front();
561 simcalls_.pop_front();
563 /* If a waitany simcall is waiting for this synchro to finish, then remove it from the other synchros in the waitany
564 * list. Afterwards, get the position of the actual synchro in the waitany dynar and return it as the result of the
567 if (simcall->call == SIMCALL_NONE) // FIXME: maybe a better way to handle this case
568 continue; // if process handling comm is killed
569 if (simcall->call == SIMCALL_COMM_WAITANY) {
570 SIMIX_waitany_remove_simcall_from_actions(simcall);
571 if (simcall->timer) {
572 simcall->timer->remove();
573 simcall->timer = nullptr;
575 if (not MC_is_active() && not MC_record_replay_is_active()) {
576 ActivityImpl* synchro = this;
577 simcall_comm_waitany__set__result(simcall,
578 xbt_dynar_search(simcall_comm_waitany__get__comms(simcall), &synchro));
582 /* If the synchro is still in a rendez-vous point then remove from it */
586 XBT_DEBUG("CommImpl::finish(): synchro state = %d", static_cast<int>(state_));
588 /* Check out for errors */
590 if (not simcall->issuer->get_host()->is_on()) {
591 simcall->issuer->context_->iwannadie = true;
592 simcall->issuer->exception_ =
593 std::make_exception_ptr(simgrid::HostFailureException(XBT_THROW_POINT, "Host failed"));
598 XBT_DEBUG("Communication %p complete!", this);
602 case SIMIX_SRC_TIMEOUT:
603 simcall->issuer->exception_ = std::make_exception_ptr(
604 simgrid::TimeoutError(XBT_THROW_POINT, "Communication timeouted because of the sender"));
607 case SIMIX_DST_TIMEOUT:
608 simcall->issuer->exception_ = std::make_exception_ptr(
609 simgrid::TimeoutError(XBT_THROW_POINT, "Communication timeouted because of the receiver"));
612 case SIMIX_SRC_HOST_FAILURE:
613 if (simcall->issuer == src_actor_)
614 simcall->issuer->context_->iwannadie = true;
616 simcall->issuer->exception_ =
617 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Remote peer failed"));
620 case SIMIX_DST_HOST_FAILURE:
621 if (simcall->issuer == dst_actor_)
622 simcall->issuer->context_->iwannadie = true;
624 simcall->issuer->exception_ =
625 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Remote peer failed"));
628 case SIMIX_LINK_FAILURE:
629 XBT_DEBUG("Link failure in synchro %p between '%s' and '%s': posting an exception to the issuer: %s (%p) "
631 this, src_actor_ ? src_actor_->get_host()->get_cname() : nullptr,
632 dst_actor_ ? dst_actor_->get_host()->get_cname() : nullptr, simcall->issuer->get_cname(),
633 simcall->issuer, detached);
634 if (src_actor_ == simcall->issuer) {
635 XBT_DEBUG("I'm source");
636 } else if (dst_actor_ == simcall->issuer) {
637 XBT_DEBUG("I'm dest");
639 XBT_DEBUG("I'm neither source nor dest");
641 simcall->issuer->throw_exception(
642 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Link failure")));
646 if (simcall->issuer == dst_actor_)
647 simcall->issuer->exception_ = std::make_exception_ptr(
648 simgrid::CancelException(XBT_THROW_POINT, "Communication canceled by the sender"));
650 simcall->issuer->exception_ = std::make_exception_ptr(
651 simgrid::CancelException(XBT_THROW_POINT, "Communication canceled by the receiver"));
655 xbt_die("Unexpected synchro state in CommImpl::finish: %d", static_cast<int>(state_));
659 /* if there is an exception during a waitany or a testany, indicate the position of the failed communication */
660 if (simcall->issuer->exception_ &&
661 (simcall->call == SIMCALL_COMM_WAITANY || simcall->call == SIMCALL_COMM_TESTANY)) {
662 // First retrieve the rank of our failing synchro
664 if (simcall->call == SIMCALL_COMM_WAITANY) {
665 ActivityImpl* synchro = this;
666 rank = xbt_dynar_search(simcall_comm_waitany__get__comms(simcall), &synchro);
667 } else if (simcall->call == SIMCALL_COMM_TESTANY) {
669 auto* comms = simcall_comm_testany__get__comms(simcall);
670 auto count = simcall_comm_testany__get__count(simcall);
671 auto element = std::find(comms, comms + count, this);
672 if (element == comms + count)
675 rank = element - comms;
678 // In order to modify the exception we have to rethrow it:
680 std::rethrow_exception(simcall->issuer->exception_);
681 } catch (simgrid::TimeoutError& e) {
683 simcall->issuer->exception_ = std::make_exception_ptr(e);
684 } catch (simgrid::NetworkFailureException& e) {
686 simcall->issuer->exception_ = std::make_exception_ptr(e);
687 } catch (simgrid::CancelException& e) {
689 simcall->issuer->exception_ = std::make_exception_ptr(e);
693 simcall->issuer->waiting_synchro = nullptr;
694 simcall->issuer->comms.remove(this);
696 if (simcall->issuer == src_actor_) {
698 dst_actor_->comms.remove(this);
699 } else if (simcall->issuer == dst_actor_) {
701 src_actor_->comms.remove(this);
703 dst_actor_->comms.remove(this);
704 src_actor_->comms.remove(this);
708 if (simcall->issuer->get_host()->is_on())
709 SIMIX_simcall_answer(simcall);
711 simcall->issuer->context_->iwannadie = true;
715 } // namespace activity
716 } // namespace kernel
717 } // namespace simgrid