1 /* Copyright (c) 2015-2022. 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/mc/api/TransitionComm.hpp"
7 #include "xbt/asserts.h"
8 #include <simgrid/config.h>
10 #include "src/mc/ModelChecker.hpp"
11 #include "src/mc/Session.hpp"
12 #include "src/mc/api/State.hpp"
17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_trans_comm, mc_transition,
18 "Logging specific to MC transitions about communications");
23 CommWaitTransition::CommWaitTransition(aid_t issuer, int times_considered, char* buffer)
24 : Transition(issuer, times_considered)
26 std::stringstream stream(buffer);
27 stream >> timeout_ >> comm_ >> sender_ >> receiver_ >> mbox_ >> src_buff_ >> dst_buff_ >> size_;
28 XBT_DEBUG("CommWaitTransition %s comm:%p, sender:%ld receiver:%ld mbox:%u sbuff:%p rbuff:%p size:%zu",
29 (timeout_ ? "timeout" : "no-timeout"), comm_, sender_, receiver_, mbox_, src_buff_, dst_buff_, size_);
31 std::string CommWaitTransition::to_string(bool verbose)
33 textual_ = xbt::string_printf("%ld: WaitComm(from %ld to %ld, mbox=%u, %s", aid_, sender_, receiver_, mbox_,
34 (timeout_ ? "timeout" : "no timeout"));
36 textual_ += ", src_buff=" + xbt::string_printf("%p", src_buff_) + ", size=" + std::to_string(size_);
37 textual_ += ", dst_buff=" + xbt::string_printf("%p", dst_buff_);
42 bool CommWaitTransition::depends(const Transition* other) const
44 if (aid_ == other->aid_)
47 if (auto* send = dynamic_cast<const CommSendTransition*>(other))
48 return send->depends(this);
50 if (auto* recv = dynamic_cast<const CommRecvTransition*>(other))
51 return recv->depends(this);
53 /* Timeouts in wait transitions are not considered by the independence theorem, thus assumed dependent */
54 if (const auto* wait = dynamic_cast<const CommWaitTransition*>(other)) {
55 if (timeout_ || wait->timeout_)
58 if (src_buff_ == wait->src_buff_ && dst_buff_ == wait->dst_buff_)
60 if (src_buff_ != nullptr && dst_buff_ != nullptr && wait->src_buff_ != nullptr && wait->dst_buff_ != nullptr &&
61 dst_buff_ != wait->src_buff_ && dst_buff_ != wait->dst_buff_ && dst_buff_ != src_buff_)
68 CommRecvTransition::CommRecvTransition(aid_t issuer, int times_considered, char* buffer)
69 : Transition(issuer, times_considered)
71 std::stringstream stream(buffer);
72 stream >> mbox_ >> dst_buff_;
74 std::string CommRecvTransition::to_string(bool verbose)
76 textual_ = xbt::string_printf("%ld: iRecv(mbox=%u", aid_, mbox_);
78 textual_ += ", buff=" + xbt::string_printf("%p", dst_buff_);
82 bool CommRecvTransition::depends(const Transition* other) const
84 if (aid_ == other->aid_)
87 if (const auto* other_irecv = dynamic_cast<const CommRecvTransition*>(other))
88 return mbox_ == other_irecv->mbox_;
90 if (auto* isend = dynamic_cast<const CommSendTransition*>(other))
91 return isend->depends(this);
93 if (auto* wait = dynamic_cast<const CommWaitTransition*>(other)) {
97 if (mbox_ != wait->mbox_)
100 if ((aid_ != wait->sender_) && (aid_ != wait->receiver_))
103 if (wait->dst_buff_ != dst_buff_)
107 /* FIXME: the following rule assumes that the result of the isend/irecv call is not stored in a buffer used in the
110 if (dynamic_cast<ActivityTestSimcall*>(other))
117 CommSendTransition::CommSendTransition(aid_t issuer, int times_considered, char* buffer)
118 : Transition(issuer, times_considered)
120 std::stringstream stream(buffer);
121 stream >> mbox_ >> src_buff_ >> size_;
122 XBT_DEBUG("SendTransition mbox:%u buff:%p size:%zu", mbox_, src_buff_, size_);
124 std::string CommSendTransition::to_string(bool verbose = false)
126 textual_ = xbt::string_printf("%ld: iSend(mbox=%u", aid_, mbox_);
128 textual_ += ", buff=" + xbt::string_printf("%p", src_buff_) + ", size=" + std::to_string(size_);
132 bool CommSendTransition::depends(const Transition* other) const
134 if (aid_ == other->aid_)
137 if (const auto* other_isend = dynamic_cast<const CommSendTransition*>(other))
138 return mbox_ == other_isend->mbox_;
140 // FIXME: Not in the former dependency check because of the ordering but seems logical to add it
141 if (dynamic_cast<const CommRecvTransition*>(other) != nullptr)
144 if (const auto* wait = dynamic_cast<const CommWaitTransition*>(other)) {
148 if (mbox_ != wait->mbox_)
151 if ((aid_ != wait->sender_) && (aid_ != wait->receiver_))
154 if (wait->src_buff_ != src_buff_)
158 /* FIXME: the following rule assumes that the result of the isend/irecv call is not stored in a buffer used in the
161 if (dynamic_cast<ActivityTestSimcall*>(other))
168 Transition* recv_transition(aid_t issuer, int times_considered, kernel::actor::SimcallObserver::Simcall simcall,
172 case kernel::actor::SimcallObserver::Simcall::COMM_WAIT:
173 return new CommWaitTransition(issuer, times_considered, buffer);
174 case kernel::actor::SimcallObserver::Simcall::IRECV:
175 return new CommRecvTransition(issuer, times_considered, buffer);
176 case kernel::actor::SimcallObserver::Simcall::ISEND:
177 return new CommSendTransition(issuer, times_considered, buffer);
178 case kernel::actor::SimcallObserver::Simcall::UNKNOWN:
179 return new Transition(issuer, times_considered);
181 xbt_die("recv_transition of type %s unimplemented", kernel::actor::SimcallObserver::to_c_str(simcall));
186 } // namespace simgrid