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, bool 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);
76 other_comm->detached_ = true;
77 other_comm->clean_fun = clean_fun;
79 other_comm->clean_fun = nullptr;
80 src_proc->comms.push_back(other_comm);
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;
96 return (detached ? nullptr : other_comm);
99 XBT_PRIVATE void simcall_HANDLER_comm_recv(smx_simcall_t simcall, smx_actor_t receiver, smx_mailbox_t mbox,
100 void* dst_buff, size_t* dst_buff_size,
101 int (*match_fun)(void*, void*, simgrid::kernel::activity::CommImpl*),
102 void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t),
103 void* data, double timeout, double rate)
105 smx_activity_t comm = simcall_HANDLER_comm_irecv(simcall, receiver, mbox, dst_buff, dst_buff_size, match_fun,
106 copy_data_fun, data, rate);
107 SIMCALL_SET_MC_VALUE(simcall, 0);
108 simcall_HANDLER_comm_wait(simcall, static_cast<simgrid::kernel::activity::CommImpl*>(comm.get()), timeout);
111 XBT_PRIVATE smx_activity_t simcall_HANDLER_comm_irecv(
112 smx_simcall_t /*simcall*/, smx_actor_t receiver, smx_mailbox_t mbox, void* dst_buff, size_t* dst_buff_size,
113 simix_match_func_t match_fun, void (*copy_data_fun)(simgrid::kernel::activity::CommImpl*, void*, size_t),
114 void* data, double rate)
116 simgrid::kernel::activity::CommImplPtr this_synchro =
117 simgrid::kernel::activity::CommImplPtr(new simgrid::kernel::activity::CommImpl());
118 this_synchro->set_type(simgrid::kernel::activity::CommImpl::Type::RECEIVE);
119 XBT_DEBUG("recv from mbox %p. this_synchro=%p", mbox, this_synchro.get());
121 simgrid::kernel::activity::CommImplPtr other_comm;
122 // communication already done, get it inside the list of completed comms
123 if (mbox->permanent_receiver_ != nullptr && not mbox->done_comm_queue_.empty()) {
125 XBT_DEBUG("We have a comm that has probably already been received, trying to match it, to skip the communication");
126 // find a match in the list of already received comms
127 other_comm = mbox->find_matching_comm(simgrid::kernel::activity::CommImpl::Type::SEND, match_fun, data,
128 this_synchro, /*done*/ true,
129 /*remove_matching*/ true);
130 // if not found, assume the receiver came first, register it to the mailbox in the classical way
131 if (not other_comm) {
132 XBT_DEBUG("We have messages in the permanent receive list, but not the one we are looking for, pushing request "
134 other_comm = std::move(this_synchro);
135 mbox->push(other_comm);
137 if (other_comm->surf_action_ && other_comm->get_remaining() < 1e-12) {
138 XBT_DEBUG("comm %p has been already sent, and is finished, destroy it", other_comm.get());
139 other_comm->state_ = SIMIX_DONE;
140 other_comm->set_type(simgrid::kernel::activity::CommImpl::Type::DONE);
141 other_comm->mbox = nullptr;
145 /* Prepare a comm describing us, so that it gets passed to the user-provided filter of other side */
147 /* Look for communication activity matching our needs. We also provide a description of
148 * ourself so that the other side also gets a chance of choosing if it wants to match with us.
150 * If it is not found then push our communication into the rendez-vous point */
151 other_comm = mbox->find_matching_comm(simgrid::kernel::activity::CommImpl::Type::SEND, match_fun, data,
152 this_synchro, /*done*/ false,
153 /*remove_matching*/ true);
155 if (other_comm == nullptr) {
156 XBT_DEBUG("Receive pushed first (%zu comm enqueued so far)", mbox->comm_queue_.size());
157 other_comm = std::move(this_synchro);
158 mbox->push(other_comm);
160 XBT_DEBUG("Match my %p with the existing %p", this_synchro.get(), other_comm.get());
162 other_comm->state_ = SIMIX_READY;
163 other_comm->set_type(simgrid::kernel::activity::CommImpl::Type::READY);
165 receiver->comms.push_back(other_comm);
168 /* Setup communication synchro */
169 other_comm->dst_actor_ = receiver;
170 other_comm->dst_data_ = data;
171 other_comm->set_dst_buff(dst_buff, dst_buff_size);
173 if (rate > -1.0 && (other_comm->get_rate() < 0.0 || rate < other_comm->get_rate()))
174 other_comm->set_rate(rate);
176 other_comm->match_fun = match_fun;
177 other_comm->copy_data_fun = copy_data_fun;
179 if (MC_is_active() || MC_record_replay_is_active()) {
180 other_comm->state_ = SIMIX_RUNNING;
187 void simcall_HANDLER_comm_wait(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comm, double timeout)
189 /* Associate this simcall to the wait synchro */
190 XBT_DEBUG("simcall_HANDLER_comm_wait, %p", comm);
192 comm->simcalls_.push_back(simcall);
193 simcall->issuer->waiting_synchro = comm;
195 if (MC_is_active() || MC_record_replay_is_active()) {
196 int idx = SIMCALL_GET_MC_VALUE(simcall);
198 comm->state_ = SIMIX_DONE;
200 /* If we reached this point, the wait simcall must have a timeout */
201 /* Otherwise it shouldn't be enabled and executed by the MC */
205 if (comm->src_actor_ == simcall->issuer)
206 comm->state_ = SIMIX_SRC_TIMEOUT;
208 comm->state_ = SIMIX_DST_TIMEOUT;
215 /* If the synchro has already finish perform the error handling, */
216 /* otherwise set up a waiting timeout on the right side */
217 if (comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING) {
219 } else { /* we need a sleep action (even when there is no timeout) to be notified of host failures */
220 simgrid::kernel::resource::Action* sleep = simcall->issuer->get_host()->pimpl_cpu->sleep(timeout);
221 sleep->set_activity(comm);
223 if (simcall->issuer == comm->src_actor_)
224 comm->src_timeout_ = sleep;
226 comm->dst_timeout_ = sleep;
230 void simcall_HANDLER_comm_test(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comm)
234 if (MC_is_active() || MC_record_replay_is_active()) {
235 res = comm->src_actor_ && comm->dst_actor_;
237 comm->state_ = SIMIX_DONE;
239 res = comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING;
242 simcall_comm_test__set__result(simcall, res);
243 if (simcall_comm_test__get__result(simcall)) {
244 comm->simcalls_.push_back(simcall);
247 SIMIX_simcall_answer(simcall);
251 void simcall_HANDLER_comm_testany(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comms[], size_t count)
253 // The default result is -1 -- this means, "nothing is ready".
254 // It can be changed below, but only if something matches.
255 simcall_comm_testany__set__result(simcall, -1);
257 if (MC_is_active() || MC_record_replay_is_active()) {
258 int idx = SIMCALL_GET_MC_VALUE(simcall);
260 SIMIX_simcall_answer(simcall);
262 simgrid::kernel::activity::CommImpl* comm = comms[idx];
263 simcall_comm_testany__set__result(simcall, idx);
264 comm->simcalls_.push_back(simcall);
265 comm->state_ = SIMIX_DONE;
271 for (std::size_t i = 0; i != count; ++i) {
272 simgrid::kernel::activity::CommImpl* comm = comms[i];
273 if (comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING) {
274 simcall_comm_testany__set__result(simcall, i);
275 comm->simcalls_.push_back(simcall);
280 SIMIX_simcall_answer(simcall);
283 static void SIMIX_waitany_remove_simcall_from_actions(smx_simcall_t simcall)
285 simgrid::kernel::activity::CommImpl** comms = simcall_comm_waitany__get__comms(simcall);
286 size_t count = simcall_comm_waitany__get__count(simcall);
288 for (size_t i = 0; i < count; i++) {
289 // Remove the first occurence of simcall:
290 auto* comm = comms[i];
291 auto j = boost::range::find(comm->simcalls_, simcall);
292 if (j != comm->simcalls_.end())
293 comm->simcalls_.erase(j);
296 void simcall_HANDLER_comm_waitany(smx_simcall_t simcall, simgrid::kernel::activity::CommImpl* comms[], size_t count,
299 if (MC_is_active() || MC_record_replay_is_active()) {
301 xbt_die("Timeout not implemented for waitany in the model-checker");
302 int idx = SIMCALL_GET_MC_VALUE(simcall);
303 auto* comm = comms[idx];
304 comm->simcalls_.push_back(simcall);
305 simcall_comm_waitany__set__result(simcall, idx);
306 comm->state_ = SIMIX_DONE;
312 simcall->timer = NULL;
314 simcall->timer = simgrid::simix::Timer::set(SIMIX_get_clock() + timeout, [simcall]() {
315 SIMIX_waitany_remove_simcall_from_actions(simcall);
316 simcall_comm_waitany__set__result(simcall, -1);
317 SIMIX_simcall_answer(simcall);
321 for (size_t i = 0; i < count; i++) {
322 /* associate this simcall to the the synchro */
323 auto* comm = comms[i];
324 comm->simcalls_.push_back(simcall);
326 /* see if the synchro is already finished */
327 if (comm->state_ != SIMIX_WAITING && comm->state_ != SIMIX_RUNNING) {
334 /******************************************************************************/
335 /* SIMIX_comm_copy_data callbacks */
336 /******************************************************************************/
337 static void (*SIMIX_comm_copy_data_callback)(simgrid::kernel::activity::CommImpl*, void*,
338 size_t) = &SIMIX_comm_copy_pointer_callback;
340 void SIMIX_comm_copy_buffer_callback(simgrid::kernel::activity::CommImpl* comm, void* buff, size_t buff_size)
342 XBT_DEBUG("Copy the data over");
343 memcpy(comm->dst_buff_, buff, buff_size);
344 if (comm->detached_) { // if this is a detached send, the source buffer was duplicated by SMPI sender to make the
345 // original buffer available to the application ASAP
347 comm->src_buff_ = nullptr;
351 void SIMIX_comm_set_copy_data_callback(void (*callback)(simgrid::kernel::activity::CommImpl*, void*, size_t))
353 SIMIX_comm_copy_data_callback = callback;
356 void SIMIX_comm_copy_pointer_callback(simgrid::kernel::activity::CommImpl* comm, void* buff, size_t buff_size)
358 xbt_assert((buff_size == sizeof(void*)), "Cannot copy %zu bytes: must be sizeof(void*)", buff_size);
359 *(void**)(comm->dst_buff_) = buff;
366 CommImpl& CommImpl::set_type(CommImpl::Type type)
372 CommImpl& CommImpl::set_size(double size)
378 CommImpl& CommImpl::set_rate(double rate)
384 CommImpl& CommImpl::set_src_buff(void* buff, size_t size)
387 src_buff_size_ = size;
391 CommImpl& CommImpl::set_dst_buff(void* buff, size_t* size)
394 dst_buff_size_ = size;
398 CommImpl::~CommImpl()
400 XBT_DEBUG("Really free communication %p in state %d (detached = %d)", this, static_cast<int>(state_), detached_);
404 if (detached_ && state_ != SIMIX_DONE) {
405 /* the communication has failed and was detached:
406 * we have to free the buffer */
408 clean_fun(src_buff_);
415 /** @brief Starts the simulation of a communication synchro. */
416 CommImpl* CommImpl::start()
418 /* If both the sender and the receiver are already there, start the communication */
419 if (state_ == SIMIX_READY) {
421 s4u::Host* sender = src_actor_->get_host();
422 s4u::Host* receiver = dst_actor_->get_host();
424 surf_action_ = surf_network_model->communicate(sender, receiver, size_, rate_);
425 surf_action_->set_activity(this);
426 surf_action_->set_category(get_tracing_category());
427 state_ = SIMIX_RUNNING;
429 XBT_DEBUG("Starting communication %p from '%s' to '%s' (surf_action: %p)", this, sender->get_cname(),
430 receiver->get_cname(), surf_action_);
432 /* If a link is failed, detect it immediately */
433 if (surf_action_->get_state() == resource::Action::State::FAILED) {
434 XBT_DEBUG("Communication from '%s' to '%s' failed to start because of a link failure", sender->get_cname(),
435 receiver->get_cname());
436 state_ = SIMIX_LINK_FAILURE;
439 } else if (src_actor_->is_suspended() || dst_actor_->is_suspended()) {
440 /* If any of the process is suspended, create the synchro but stop its execution,
441 it will be restarted when the sender process resume */
442 if (src_actor_->is_suspended())
443 XBT_DEBUG("The communication is suspended on startup because src (%s@%s) was suspended since it initiated the "
445 src_actor_->get_cname(), src_actor_->get_host()->get_cname());
447 XBT_DEBUG("The communication is suspended on startup because dst (%s@%s) was suspended since it initiated the "
449 dst_actor_->get_cname(), dst_actor_->get_host()->get_cname());
451 surf_action_->suspend();
458 /** @brief Copy the communication data from the sender's buffer to the receiver's one */
459 void CommImpl::copy_data()
461 size_t buff_size = src_buff_size_;
462 /* If there is no data to copy then return */
463 if (not src_buff_ || not dst_buff_ || copied)
466 XBT_DEBUG("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)", this,
467 src_actor_ ? src_actor_->get_host()->get_cname() : "a finished process", src_buff_,
468 dst_actor_ ? dst_actor_->get_host()->get_cname() : "a finished process", dst_buff_, buff_size);
470 /* Copy at most dst_buff_size bytes of the message to receiver's buffer */
472 buff_size = std::min(buff_size, *(dst_buff_size_));
474 /* Update the receiver's buffer size to the copied amount */
476 *dst_buff_size_ = buff_size;
480 copy_data_fun(this, src_buff_, buff_size);
482 SIMIX_comm_copy_data_callback(this, src_buff_, buff_size);
485 /* Set the copied flag so we copy data only once */
486 /* (this function might be called from both communication ends) */
490 void CommImpl::suspend()
492 /* FIXME: shall we suspend also the timeout synchro? */
494 surf_action_->suspend();
495 /* if not created yet, the action will be suspended on creation, in CommImpl::start() */
498 void CommImpl::resume()
500 /*FIXME: check what happen with the timeouts */
502 surf_action_->resume();
503 /* in the other case, the synchro were not really suspended yet, see CommImpl::suspend() and CommImpl::start() */
506 void CommImpl::cancel()
508 /* if the synchro is a waiting state means that it is still in a mbox so remove from it and delete it */
509 if (state_ == SIMIX_WAITING) {
512 state_ = SIMIX_CANCELED;
514 } else if (not MC_is_active() /* when running the MC there are no surf actions */
515 && not MC_record_replay_is_active() && (state_ == SIMIX_READY || state_ == SIMIX_RUNNING)) {
516 surf_action_->cancel();
520 /** @brief This is part of the cleanup process, probably an internal command */
521 void CommImpl::cleanupSurf()
524 surf_action_->unref();
525 surf_action_ = nullptr;
529 src_timeout_->unref();
530 src_timeout_ = nullptr;
534 dst_timeout_->unref();
535 dst_timeout_ = nullptr;
539 void CommImpl::post()
541 /* Update synchro state */
542 if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FINISHED)
543 state_ = SIMIX_SRC_TIMEOUT;
544 else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FINISHED)
545 state_ = SIMIX_DST_TIMEOUT;
546 else if (src_timeout_ && src_timeout_->get_state() == resource::Action::State::FAILED)
547 state_ = SIMIX_SRC_HOST_FAILURE;
548 else if (dst_timeout_ && dst_timeout_->get_state() == resource::Action::State::FAILED)
549 state_ = SIMIX_DST_HOST_FAILURE;
550 else if (surf_action_ && surf_action_->get_state() == resource::Action::State::FAILED) {
551 state_ = SIMIX_LINK_FAILURE;
555 XBT_DEBUG("SIMIX_post_comm: comm %p, state %d, src_proc %p, dst_proc %p, detached: %d", this, (int)state_,
556 src_actor_.get(), dst_actor_.get(), detached_);
558 /* destroy the surf actions associated with the Simix communication */
561 /* if there are simcalls associated with the synchro, then answer them */
562 if (not simcalls_.empty()) {
567 void CommImpl::finish()
569 while (not simcalls_.empty()) {
570 smx_simcall_t simcall = simcalls_.front();
571 simcalls_.pop_front();
573 /* If a waitany simcall is waiting for this synchro to finish, then remove it from the other synchros in the waitany
574 * list. Afterwards, get the position of the actual synchro in the waitany list and return it as the result of the
577 if (simcall->call == SIMCALL_NONE) // FIXME: maybe a better way to handle this case
578 continue; // if process handling comm is killed
579 if (simcall->call == SIMCALL_COMM_WAITANY) {
580 SIMIX_waitany_remove_simcall_from_actions(simcall);
581 if (simcall->timer) {
582 simcall->timer->remove();
583 simcall->timer = nullptr;
585 if (not MC_is_active() && not MC_record_replay_is_active()) {
586 CommImpl** comms = simcall_comm_waitany__get__comms(simcall);
587 size_t count = simcall_comm_waitany__get__count(simcall);
588 CommImpl** element = std::find(comms, comms + count, this);
589 int rank = (element != comms + count) ? element - comms : -1;
590 simcall_comm_waitany__set__result(simcall, rank);
594 /* If the synchro is still in a rendez-vous point then remove from it */
598 XBT_DEBUG("CommImpl::finish(): synchro state = %d", static_cast<int>(state_));
600 /* Check out for errors */
602 if (not simcall->issuer->get_host()->is_on()) {
603 simcall->issuer->context_->iwannadie = true;
608 XBT_DEBUG("Communication %p complete!", this);
612 case SIMIX_SRC_TIMEOUT:
613 simcall->issuer->exception_ = std::make_exception_ptr(
614 simgrid::TimeoutError(XBT_THROW_POINT, "Communication timeouted because of the sender"));
617 case SIMIX_DST_TIMEOUT:
618 simcall->issuer->exception_ = std::make_exception_ptr(
619 simgrid::TimeoutError(XBT_THROW_POINT, "Communication timeouted because of the receiver"));
622 case SIMIX_SRC_HOST_FAILURE:
623 if (simcall->issuer == src_actor_)
624 simcall->issuer->context_->iwannadie = true;
626 simcall->issuer->exception_ =
627 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Remote peer failed"));
630 case SIMIX_DST_HOST_FAILURE:
631 if (simcall->issuer == dst_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_LINK_FAILURE:
639 XBT_DEBUG("Link failure in synchro %p between '%s' and '%s': posting an exception to the issuer: %s (%p) "
641 this, src_actor_ ? src_actor_->get_host()->get_cname() : nullptr,
642 dst_actor_ ? dst_actor_->get_host()->get_cname() : nullptr, simcall->issuer->get_cname(),
643 simcall->issuer, detached_);
644 if (src_actor_ == simcall->issuer) {
645 XBT_DEBUG("I'm source");
646 } else if (dst_actor_ == simcall->issuer) {
647 XBT_DEBUG("I'm dest");
649 XBT_DEBUG("I'm neither source nor dest");
651 simcall->issuer->throw_exception(
652 std::make_exception_ptr(simgrid::NetworkFailureException(XBT_THROW_POINT, "Link failure")));
656 if (simcall->issuer == dst_actor_)
657 simcall->issuer->exception_ = std::make_exception_ptr(
658 simgrid::CancelException(XBT_THROW_POINT, "Communication canceled by the sender"));
660 simcall->issuer->exception_ = std::make_exception_ptr(
661 simgrid::CancelException(XBT_THROW_POINT, "Communication canceled by the receiver"));
665 xbt_die("Unexpected synchro state in CommImpl::finish: %d", static_cast<int>(state_));
668 /* if there is an exception during a waitany or a testany, indicate the position of the failed communication */
669 if (simcall->issuer->exception_ &&
670 (simcall->call == SIMCALL_COMM_WAITANY || simcall->call == SIMCALL_COMM_TESTANY)) {
671 // First retrieve the rank of our failing synchro
674 if (simcall->call == SIMCALL_COMM_WAITANY) {
675 comms = simcall_comm_waitany__get__comms(simcall);
676 count = simcall_comm_waitany__get__count(simcall);
678 /* simcall->call == SIMCALL_COMM_TESTANY */
679 comms = simcall_comm_testany__get__comms(simcall);
680 count = simcall_comm_testany__get__count(simcall);
682 CommImpl** element = std::find(comms, comms + count, this);
683 int rank = (element != comms + count) ? element - comms : -1;
685 // In order to modify the exception we have to rethrow it:
687 std::rethrow_exception(simcall->issuer->exception_);
688 } catch (simgrid::TimeoutError& e) {
690 simcall->issuer->exception_ = std::make_exception_ptr(e);
691 } catch (simgrid::NetworkFailureException& e) {
693 simcall->issuer->exception_ = std::make_exception_ptr(e);
694 } catch (simgrid::CancelException& e) {
696 simcall->issuer->exception_ = std::make_exception_ptr(e);
700 simcall->issuer->waiting_synchro = nullptr;
701 simcall->issuer->comms.remove(this);
703 if (simcall->issuer == src_actor_) {
705 dst_actor_->comms.remove(this);
706 } else if (simcall->issuer == dst_actor_) {
708 src_actor_->comms.remove(this);
710 dst_actor_->comms.remove(this);
711 src_actor_->comms.remove(this);
715 if (simcall->issuer->get_host()->is_on())
716 SIMIX_simcall_answer(simcall);
718 simcall->issuer->context_->iwannadie = true;
722 } // namespace activity
723 } // namespace kernel
724 } // namespace simgrid