const static HandlerMap handlers =
HandlerMap{{Action::COMM_ASYNC_RECV, &ExtensionSetCalculator::partially_extend_CommRecv},
{Action::COMM_ASYNC_SEND, &ExtensionSetCalculator::partially_extend_CommSend},
- {Action::COMM_WAIT, &ExtensionSetCalculator::partially_extend_CommWait}};
+ {Action::COMM_WAIT, &ExtensionSetCalculator::partially_extend_CommWait},
+ {Action::COMM_TEST, &ExtensionSetCalculator::partially_extend_CommTest},
+ {Action::MUTEX_ASYNC_LOCK, &ExtensionSetCalculator::partially_extend_MutexAsyncLock},
+ {Action::MUTEX_UNLOCK, &ExtensionSetCalculator::partially_extend_MutexUnlock},
+ {Action::MUTEX_WAIT, &ExtensionSetCalculator::partially_extend_MutexWait},
+ {Action::MUTEX_TEST, &ExtensionSetCalculator::partially_extend_MutexTest},
+ {Action::ACTOR_JOIN, &ExtensionSetCalculator::partially_extend_ActorJoin}};
if (const auto handler = handlers.find(action->type_); handler != handlers.end()) {
return handler->second(C, U, std::move(action));
} else {
- xbt_assert(false,
- "There is currently no specialized computation for the transition "
- "'%s' for computing extension sets in UDPOR, so the model checker cannot "
- "determine how to proceed. Please submit a bug report requesting "
- "that the transition be supported in SimGrid using UDPOR and consider "
- "using the other model-checking algorithms supported by SimGrid instead "
- "in the meantime",
- action->to_string().c_str());
- DIE_IMPOSSIBLE;
+ xbt_die("There is currently no specialized computation for the transition "
+ "'%s' for computing extension sets in UDPOR, so the model checker cannot "
+ "determine how to proceed. Please submit a bug report requesting "
+ "that the transition be supported in SimGrid using UDPOR and consider "
+ "using the other model-checking algorithms supported by SimGrid instead "
+ "in the meantime",
+ action->to_string().c_str());
}
}
// NOTE: If `preEvt(a, C)` doesn't exist, we're effectively asking
// about `config({})`
if (pre_event_a_C.has_value()) {
- const auto e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), send_action);
+ const auto* e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), send_action);
exC.insert(e_prime);
} else {
- const auto e_prime = U->discover_event(EventSet(), send_action);
+ const auto* e_prime = U->discover_event(EventSet(), send_action);
exC.insert(e_prime);
}
// 2. foreach e ∈ C s.t. λ(e) ∈ {AsyncSend(m, _), TestAny(Com)} where
- // Com contains a matching c' = AsyncReceive(m, _) with a
+ // Com contains a matching c' = AsyncReceive(m, _) with `action`
for (const auto e : C) {
const bool transition_type_check = [&]() {
- if (const auto* async_send = dynamic_cast<const CommSendTransition*>(e->get_transition());
- async_send != nullptr) {
+ if (const auto* async_send = dynamic_cast<const CommSendTransition*>(e->get_transition())) {
return async_send->get_mailbox() == sender_mailbox;
}
// TODO: Add `TestAny` dependency
if (transition_type_check) {
const EventSet K = EventSet({e, pre_event_a_C.value_or(e)}).get_largest_maximal_subset();
- // TODO: Check D_K(a, lambda(e))
- if (true) {
- const auto e_prime = U->discover_event(std::move(K), send_action);
- exC.insert(e_prime);
- }
+ // TODO: Check D_K(a, lambda(e)) (only matters in the case of CommTest)
+ const auto e_prime = U->discover_event(std::move(K), send_action);
+ exC.insert(e_prime);
}
}
{
EventSet exC;
- // TODO: if this is the first action by the actor, no such previous event exists.
- // How do we react here? Do we say we're dependent with the root event?
const auto recv_action = std::static_pointer_cast<CommRecvTransition>(std::move(action));
const unsigned recv_mailbox = recv_action->get_mailbox();
const auto pre_event_a_C = C.pre_event(recv_action->aid_);
// 1. Create `e' := <a, config(preEvt(a, C))>` and add `e'` to `ex(C)`
if (pre_event_a_C.has_value()) {
- const auto e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), recv_action);
+ const auto* e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), recv_action);
exC.insert(e_prime);
} else {
- const auto e_prime = U->discover_event(EventSet(), recv_action);
+ const auto* e_prime = U->discover_event(EventSet(), recv_action);
exC.insert(e_prime);
}
if (transition_type_check) {
const EventSet K = EventSet({e, pre_event_a_C.value_or(e)}).get_largest_maximal_subset();
- // TODO: Check D_K(a, lambda(e))
+ // TODO: Check D_K(a, lambda(e)) (ony matters in the case of TestAny)
if (true) {
- const auto e_prime = U->discover_event(std::move(K), recv_action);
+ const auto* e_prime = U->discover_event(std::move(K), recv_action);
exC.insert(e_prime);
}
}
// whose transition is the `CommRecv` or `CommSend` whose resulting
// communication this `CommWait` waits on
const auto issuer = std::find_if(C.begin(), C.end(), [&](const UnfoldingEvent* e) {
- if (const CommRecvTransition* e_issuer_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition());
- e_issuer_receive != nullptr) {
+ if (const auto* e_issuer_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition())) {
return e_issuer_receive->aid_ == wait_action->aid_ && wait_comm == e_issuer_receive->get_comm();
}
- if (const CommSendTransition* e_issuer_send = dynamic_cast<const CommSendTransition*>(e->get_transition());
- e_issuer_send != nullptr) {
+ if (const auto* e_issuer_send = dynamic_cast<const CommSendTransition*>(e->get_transition())) {
return e_issuer_send->aid_ == wait_action->aid_ && wait_comm == e_issuer_send->get_comm();
}
});
xbt_assert(issuer != C.end(),
"Invariant violation! A (supposedly) enabled `CommWait` transition "
- "waiting on commiunication %lu should not be enabled: the receive/send "
+ "waiting on communication %u should not be enabled: the receive/send "
"transition which generated the communication is not an action taken "
"to reach state(C) (the state of the configuration), which should "
"be an impossibility if `%s` is enabled. Please report this as "
// First, if `pre_event_a_C == std::nullopt`, then there is nothing to
// do: `CommWait` will never be enabled in the empty configuration (at
// least two actions must be executed before)
- if (pre_event_a_C.has_value(); const auto unwrapped_pre_event = pre_event_a_C.value()) {
+ if (pre_event_a_C.has_value(); const auto* unwrapped_pre_event = pre_event_a_C.value()) {
// A necessary condition is that the issuer be present in
// config({preEvt(a, C)}); otherwise, the `CommWait` could not
// be enabled since the communication on which it waits would not
// as needed to reach the receive/send number that is `issuer`.
// ...
// ...
- if (const CommRecvTransition* e_issuer_receive =
- dynamic_cast<const CommRecvTransition*>(e_issuer->get_transition());
- e_issuer_receive != nullptr) {
+ if (const auto* e_issuer_receive = dynamic_cast<const CommRecvTransition*>(e_issuer->get_transition())) {
const unsigned issuer_mailbox = e_issuer_receive->get_mailbox();
// Check from the config -> how many sends have there been
const unsigned send_position =
std::count_if(config_pre_event.begin(), config_pre_event.end(), [=](const auto e) {
- const CommSendTransition* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition());
- if (e_send != nullptr) {
+ if (const auto* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition())) {
return e_send->get_mailbox() == issuer_mailbox;
}
return false;
// Check from e_issuer -> what place is the issuer in?
const unsigned receive_position =
std::count_if(e_issuer_history.begin(), e_issuer_history.end(), [=](const auto e) {
- const CommRecvTransition* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition());
- if (e_receive != nullptr) {
+ if (const auto* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition())) {
return e_receive->get_mailbox() == issuer_mailbox;
}
return false;
exC.insert(U->discover_event(EventSet({unwrapped_pre_event}), wait_action));
}
- } else if (const CommSendTransition* e_issuer_send =
- dynamic_cast<const CommSendTransition*>(e_issuer->get_transition());
- e_issuer_send != nullptr) {
+ } else if (const auto* e_issuer_send = dynamic_cast<const CommSendTransition*>(e_issuer->get_transition())) {
const unsigned issuer_mailbox = e_issuer_send->get_mailbox();
// Check from e_issuer -> what place is the issuer in?
const unsigned send_position =
std::count_if(e_issuer_history.begin(), e_issuer_history.end(), [=](const auto e) {
- const CommSendTransition* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition());
- if (e_send != nullptr) {
+ if (const auto* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition())) {
return e_send->get_mailbox() == issuer_mailbox;
}
return false;
// Check from the config -> how many sends have there been
const unsigned receive_position =
std::count_if(config_pre_event.begin(), config_pre_event.end(), [=](const auto e) {
- const CommRecvTransition* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition());
- if (e_receive != nullptr) {
+ if (const auto* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition())) {
return e_receive->get_mailbox() == issuer_mailbox;
}
return false;
}
} else {
- xbt_assert(false,
- "The transition which created the communication on which `%s` waits "
- "is neither an async send nor an async receive. The current UDPOR "
- "implementation does not know how to check if `CommWait` is enabled in "
- "this case. Was a new transition added?",
- e_issuer->get_transition()->to_string().c_str());
+ xbt_die("The transition which created the communication on which `%s` waits "
+ "is neither an async send nor an async receive. The current UDPOR "
+ "implementation does not know how to check if `CommWait` is enabled in "
+ "this case. Was a new transition added?",
+ e_issuer->get_transition()->to_string().c_str());
}
}
}
// 3. foreach event e in C do
- for (const auto e : C) {
- if (const CommSendTransition* e_issuer_send = dynamic_cast<const CommSendTransition*>(e_issuer->get_transition());
- e_issuer_send != nullptr) {
+ if (const auto* e_issuer_send = dynamic_cast<const CommSendTransition*>(e_issuer->get_transition())) {
+ for (const auto e : C) {
// If the provider of the communication for `CommWait` is a
// `CommSend(m)`, then we only care about `e` if `λ(e) == `CommRecv(m)`.
// All other actions would be independent with the wait action (including
}
const auto issuer_mailbox = e_issuer_send->get_mailbox();
- const CommRecvTransition* e_recv = dynamic_cast<const CommRecvTransition*>(e->get_transition());
- if (e_recv->get_mailbox() != issuer_mailbox) {
+ if (const auto* e_recv = dynamic_cast<const CommRecvTransition*>(e->get_transition());
+ e_recv->get_mailbox() != issuer_mailbox) {
continue;
}
continue;
}
- // TODO: Compute the send and receive positions
-
// What send # is the issuer
const unsigned send_position = std::count_if(e_issuer_history.begin(), e_issuer_history.end(), [=](const auto e) {
- const CommSendTransition* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition());
- if (e_send != nullptr) {
+ if (const auto* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition())) {
return e_send->get_mailbox() == issuer_mailbox;
}
return false;
// What receive # is the event `e`?
const unsigned receive_position = std::count_if(config_K.begin(), config_K.end(), [=](const auto e) {
- const CommRecvTransition* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition());
- if (e_receive != nullptr) {
+ if (const auto* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition())) {
return e_receive->get_mailbox() == issuer_mailbox;
}
return false;
if (send_position == receive_position) {
exC.insert(U->discover_event(std::move(K), wait_action));
}
-
- } else if (const CommRecvTransition* e_issuer_recv =
- dynamic_cast<const CommRecvTransition*>(e_issuer->get_transition());
- e_issuer_recv != nullptr) {
+ }
+ } else if (const auto* e_issuer_recv = dynamic_cast<const CommRecvTransition*>(e_issuer->get_transition())) {
+ for (const auto e : C) {
// If the provider of the communication for `CommWait` is a
// `CommRecv(m)`, then we only care about `e` if `λ(e) == `CommSend(m)`.
// All other actions would be independent with the wait action (including
}
const auto issuer_mailbox = e_issuer_recv->get_mailbox();
- const CommSendTransition* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition());
- if (e_send->get_mailbox() != issuer_mailbox) {
+ if (const auto* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition());
+ e_send->get_mailbox() != issuer_mailbox) {
continue;
}
// What receive # is the event `e`?
const unsigned send_position = std::count_if(config_K.begin(), config_K.end(), [=](const auto e) {
- const CommSendTransition* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition());
- if (e_send != nullptr) {
+ if (const auto* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition())) {
return e_send->get_mailbox() == issuer_mailbox;
}
return false;
// What send # is the issuer
const unsigned receive_position =
std::count_if(e_issuer_history.begin(), e_issuer_history.end(), [=](const auto e) {
- const CommRecvTransition* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition());
- if (e_receive != nullptr) {
+ if (const auto* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition())) {
return e_receive->get_mailbox() == issuer_mailbox;
}
return false;
exC.insert(U->discover_event(std::move(K), wait_action));
}
}
+ } else {
+ xbt_die("The transition which created the communication on which `%s` waits "
+ "is neither an async send nor an async receive. The current UDPOR "
+ "implementation does not know how to check if `CommWait` is enabled in "
+ "this case. Was a new transition added?",
+ e_issuer->get_transition()->to_string().c_str());
}
return exC;
}
EventSet ExtensionSetCalculator::partially_extend_CommTest(const Configuration& C, Unfolding* U,
- std::shared_ptr<Transition> test_action)
+ std::shared_ptr<Transition> action)
{
- return EventSet();
+ EventSet exC;
+
+ const auto test_action = std::static_pointer_cast<CommTestTransition>(std::move(action));
+ const auto test_comm = test_action->get_comm();
+ const auto test_aid = test_action->aid_;
+ const auto pre_event_a_C = C.pre_event(test_action->aid_);
+
+ // Add the previous event as a dependency (if it's there)
+ if (pre_event_a_C.has_value()) {
+ const auto e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), test_action);
+ exC.insert(e_prime);
+ }
+
+ // Determine the _issuer_ of the communication of the `CommTest` event
+ // in `C`. The issuer of the `CommTest` in `C` is the event in `C`
+ // whose transition is the `CommRecv` or `CommSend` whose resulting
+ // communication this `CommTest` tests on
+ const auto issuer = std::find_if(C.begin(), C.end(), [=](const UnfoldingEvent* e) {
+ if (const auto* e_issuer_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition())) {
+ return e_issuer_receive->aid_ == test_aid && test_comm == e_issuer_receive->get_comm();
+ }
+
+ if (const auto* e_issuer_send = dynamic_cast<const CommSendTransition*>(e->get_transition())) {
+ return e_issuer_send->aid_ == test_aid && test_comm == e_issuer_send->get_comm();
+ }
+
+ return false;
+ });
+ xbt_assert(issuer != C.end(),
+ "An enabled `CommTest` transition (%s) is testing a communication"
+ "%u not created by a receive/send "
+ "transition. SimGrid cannot currently handle test actions "
+ "under which a test is performed on a communication that was "
+ "not directly created by a receive/send operation of the same actor.",
+ test_action->to_string(false).c_str(), test_action->get_comm());
+ const UnfoldingEvent* e_issuer = *issuer;
+ const History e_issuer_history(e_issuer);
+
+ // 3. foreach event e in C do
+ if (const auto* e_issuer_send = dynamic_cast<const CommSendTransition*>(e_issuer->get_transition())) {
+ for (const auto e : C) {
+ // If the provider of the communication for `CommTest` is a
+ // `CommSend(m)`, then we only care about `e` if `λ(e) == `CommRecv(m)`.
+ // All other actions would be independent with the test action (including
+ // another `CommSend` to the same mailbox: `CommTest` is testing the
+ // corresponding receive action)
+ if (e->get_transition()->type_ != Transition::Type::COMM_ASYNC_RECV) {
+ continue;
+ }
+
+ const auto issuer_mailbox = e_issuer_send->get_mailbox();
+
+ if (const auto* e_recv = dynamic_cast<const CommRecvTransition*>(e->get_transition());
+ e_recv->get_mailbox() != issuer_mailbox) {
+ continue;
+ }
+
+ // If the `issuer` is not in `config(K)`, this implies that
+ // `CommTest()` is always disabled in `config(K)`; hence, it
+ // is independent of any transition in `config(K)` (according
+ // to formal definition of independence)
+ const EventSet K = EventSet({e, pre_event_a_C.value_or(e)});
+ const auto config_K = History(K);
+ if (not config_K.contains(e_issuer)) {
+ continue;
+ }
+
+ // What send # is the issuer
+ const unsigned send_position = std::count_if(e_issuer_history.begin(), e_issuer_history.end(), [=](const auto e) {
+ if (const auto* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition())) {
+ return e_send->get_mailbox() == issuer_mailbox;
+ }
+ return false;
+ });
+
+ // What receive # is the event `e`?
+ const unsigned receive_position = std::count_if(config_K.begin(), config_K.end(), [=](const auto e) {
+ if (const auto* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition())) {
+ return e_receive->get_mailbox() == issuer_mailbox;
+ }
+ return false;
+ });
+
+ if (send_position == receive_position) {
+ exC.insert(U->discover_event(std::move(K), test_action));
+ }
+ }
+ } else if (const auto* e_issuer_recv = dynamic_cast<const CommRecvTransition*>(e_issuer->get_transition())) {
+ for (const auto e : C) {
+ // If the provider of the communication for `CommTest` is a
+ // `CommRecv(m)`, then we only care about `e` if `λ(e) == `CommSend(m)`.
+ // All other actions would be independent with the wait action (including
+ // another `CommRecv` to the same mailbox: `CommWait` is "waiting" for its
+ // corresponding send action)
+ if (e->get_transition()->type_ != Transition::Type::COMM_ASYNC_SEND) {
+ continue;
+ }
+
+ const auto issuer_mailbox = e_issuer_recv->get_mailbox();
+ if (const auto* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition());
+ e_send->get_mailbox() != issuer_mailbox) {
+ continue;
+ }
+
+ // If the `issuer` is not in `config(K)`, this implies that
+ // `WaitAny()` is always disabled in `config(K)`; hence, it
+ // is independent of any transition in `config(K)` (according
+ // to formal definition of independence)
+ const EventSet K = EventSet({e, pre_event_a_C.value_or(e)});
+ const auto config_K = History(K);
+ if (not config_K.contains(e_issuer)) {
+ continue;
+ }
+
+ // What receive # is the event `e`?
+ const unsigned send_position = std::count_if(config_K.begin(), config_K.end(), [=](const auto e) {
+ if (const auto* e_send = dynamic_cast<const CommSendTransition*>(e->get_transition())) {
+ return e_send->get_mailbox() == issuer_mailbox;
+ }
+ return false;
+ });
+
+ // What send # is the issuer
+ const unsigned receive_position =
+ std::count_if(e_issuer_history.begin(), e_issuer_history.end(), [=](const auto e) {
+ if (const auto* e_receive = dynamic_cast<const CommRecvTransition*>(e->get_transition())) {
+ return e_receive->get_mailbox() == issuer_mailbox;
+ }
+ return false;
+ });
+
+ if (send_position == receive_position) {
+ exC.insert(U->discover_event(std::move(K), test_action));
+ }
+ }
+ } else {
+ xbt_die("The transition which created the communication on which `%s` waits "
+ "is neither an async send nor an async receive. The current UDPOR "
+ "implementation does not know how to check if `CommWait` is enabled in "
+ "this case. Was a new transition added?",
+ e_issuer->get_transition()->to_string().c_str());
+ }
+ return exC;
+}
+
+EventSet ExtensionSetCalculator::partially_extend_MutexAsyncLock(const Configuration& C, Unfolding* U,
+ std::shared_ptr<Transition> action)
+{
+ EventSet exC;
+ const auto mutex_lock = std::static_pointer_cast<MutexTransition>(std::move(action));
+ const auto pre_event_a_C = C.pre_event(mutex_lock->aid_);
+
+ // for each event e in C
+ // 1. If lambda(e) := pre(a) -> add it. Note that if
+ // pre_event_a_C.has_value() == false, this implies `C` is
+ // empty or which we treat as implicitly containing the bottom event
+ if (pre_event_a_C.has_value()) {
+ const auto e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), mutex_lock);
+ exC.insert(e_prime);
+ } else {
+ const auto e_prime = U->discover_event(EventSet(), mutex_lock);
+ exC.insert(e_prime);
+ }
+
+ // for each event e in C
+ for (const auto e : C) {
+ // Check for other locks on the same mutex
+ if (const auto* e_mutex = dynamic_cast<const MutexTransition*>(e->get_transition());
+ e_mutex->type_ == Transition::Type::MUTEX_ASYNC_LOCK && mutex_lock->get_mutex() == e_mutex->get_mutex()) {
+ const EventSet K = EventSet({e, pre_event_a_C.value_or(e)});
+ exC.insert(U->discover_event(std::move(K), mutex_lock));
+ }
+ }
+ return exC;
+}
+
+EventSet ExtensionSetCalculator::partially_extend_MutexUnlock(const Configuration& C, Unfolding* U,
+ std::shared_ptr<Transition> action)
+{
+ EventSet exC;
+ const auto mutex_unlock = std::static_pointer_cast<MutexTransition>(std::move(action));
+ const auto pre_event_a_C = C.pre_event(mutex_unlock->aid_);
+
+ // for each event e in C
+ // 1. If lambda(e) := pre(a) -> add it. Note that if
+ // pre_event_a_C.has_value() == false, this implies `C` is
+ // empty or which we treat as implicitly containing the bottom event
+ if (pre_event_a_C.has_value()) {
+ const auto e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), mutex_unlock);
+ exC.insert(e_prime);
+ } else {
+ const auto e_prime = U->discover_event(EventSet(), mutex_unlock);
+ exC.insert(e_prime);
+ }
+
+ // for each event e in C
+ for (const auto e : C) {
+ // Check for MutexTest
+ if (const auto* e_mutex = dynamic_cast<const MutexTransition*>(e->get_transition());
+ e_mutex->type_ == Transition::Type::MUTEX_TEST || e_mutex->type_ == Transition::Type::MUTEX_WAIT) {
+ // TODO: Check if dependent or not
+ // This entails getting information about
+ // the relative position of the mutex in the queue, which
+ // again means we need more context...
+ const EventSet K = EventSet({e, pre_event_a_C.value_or(e)});
+ exC.insert(U->discover_event(std::move(K), mutex_unlock));
+ }
+ }
+ return exC;
+}
+
+EventSet ExtensionSetCalculator::partially_extend_MutexWait(const Configuration& C, Unfolding* U,
+ std::shared_ptr<Transition> action)
+{
+ EventSet exC;
+ const auto mutex_wait = std::static_pointer_cast<MutexTransition>(std::move(action));
+ const auto pre_event_a_C = C.pre_event(mutex_wait->aid_);
+
+ // for each event e in C
+ // 1. If lambda(e) := pre(a) -> add it. In the case of MutexWait, we also check that the
+ // actor which is executing the MutexWait is the owner of the mutex
+ if (pre_event_a_C.has_value() && mutex_wait->get_owner() == mutex_wait->aid_) {
+ const auto e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), mutex_wait);
+ exC.insert(e_prime);
+ } else {
+ const auto e_prime = U->discover_event(EventSet(), mutex_wait);
+ exC.insert(e_prime);
+ }
+
+ // for each event e in C
+ for (const auto e : C) {
+ // Check for any unlocks
+ if (const auto* e_mutex = dynamic_cast<const MutexTransition*>(e->get_transition());
+ e_mutex != nullptr && e_mutex->type_ == Transition::Type::MUTEX_UNLOCK) {
+ // TODO: Check if dependent or not
+ // This entails getting information about
+ // the relative position of the mutex in the queue, which
+ // again means we need more context...
+ const EventSet K = EventSet({e, pre_event_a_C.value_or(e)});
+ exC.insert(U->discover_event(std::move(K), mutex_wait));
+ }
+ }
+ return exC;
+}
+
+EventSet ExtensionSetCalculator::partially_extend_MutexTest(const Configuration& C, Unfolding* U,
+ std::shared_ptr<Transition> action)
+{
+ EventSet exC;
+ const auto mutex_test = std::static_pointer_cast<MutexTransition>(std::move(action));
+ const auto pre_event_a_C = C.pre_event(mutex_test->aid_);
+
+ // for each event e in C
+ // 1. If lambda(e) := pre(a) -> add it. Note that if
+ // pre_event_a_C.has_value() == false, this implies `C` is
+ // empty or which we treat as implicitly containing the bottom event
+ if (pre_event_a_C.has_value()) {
+ const auto e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), mutex_test);
+ exC.insert(e_prime);
+ } else {
+ const auto e_prime = U->discover_event(EventSet(), mutex_test);
+ exC.insert(e_prime);
+ }
+
+ // for each event e in C
+ for (const auto e : C) {
+ // Check for any unlocks
+ if (const auto* e_mutex = dynamic_cast<const MutexTransition*>(e->get_transition());
+ e_mutex != nullptr && e_mutex->type_ == Transition::Type::MUTEX_UNLOCK) {
+ // TODO: Check if dependent or not
+ // This entails getting information about
+ // the relative position of the mutex in the queue, which
+ // again means we need more context...
+ const EventSet K = EventSet({e, pre_event_a_C.value_or(e)});
+ exC.insert(U->discover_event(std::move(K), mutex_test));
+ }
+ }
+ return exC;
+}
+
+EventSet ExtensionSetCalculator::partially_extend_ActorJoin(const Configuration& C, Unfolding* U,
+ std::shared_ptr<Transition> action)
+{
+ EventSet exC;
+
+ const auto join_action = std::static_pointer_cast<ActorJoinTransition>(std::move(action));
+ const auto pre_event_a_C = C.pre_event(join_action->aid_);
+
+ // Handling ActorJoin is very simple: it is independent with all
+ // other transitions. Thus the only event it could possibly depend
+ // on is pre(a, C) or the root
+ if (pre_event_a_C.has_value()) {
+ const auto e_prime = U->discover_event(EventSet({pre_event_a_C.value()}), join_action);
+ exC.insert(e_prime);
+ } else {
+ const auto e_prime = U->discover_event(EventSet(), join_action);
+ exC.insert(e_prime);
+ }
+
+ return exC;
}
} // namespace simgrid::mc::udpor
