X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2cf13759ba1696d88f5ff86afee5324f30ccdbfc..e63fc8d05c3ae2e35ac7baa6ff7c357b06ddff4f:/src/kernel/activity/ConditionVariableImpl.cpp diff --git a/src/kernel/activity/ConditionVariableImpl.cpp b/src/kernel/activity/ConditionVariableImpl.cpp index 144373c740..5efb83c75b 100644 --- a/src/kernel/activity/ConditionVariableImpl.cpp +++ b/src/kernel/activity/ConditionVariableImpl.cpp @@ -7,56 +7,21 @@ #include "simgrid/Exception.hpp" #include "src/kernel/activity/MutexImpl.hpp" #include "src/kernel/activity/SynchroRaw.hpp" -#include "src/simix/smx_synchro_private.hpp" XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ConditionVariable, simix_synchro, "Condition variables"); /********************************* Condition **********************************/ -static void _SIMIX_cond_wait(smx_cond_t cond, smx_mutex_t mutex, double timeout, smx_actor_t issuer, - smx_simcall_t simcall) -{ - XBT_IN("(%p, %p, %f, %p,%p)", cond, mutex, timeout, issuer, simcall); - smx_activity_t synchro = nullptr; - - XBT_DEBUG("Wait condition %p", cond); - - /* If there is a mutex unlock it */ - /* FIXME: what happens if the issuer is not the owner of the mutex? */ - if (mutex != nullptr) { - cond->mutex = mutex; - mutex->unlock(issuer); - } - - synchro = SIMIX_synchro_wait(issuer->get_host(), timeout); - synchro->simcalls_.push_front(simcall); - issuer->waiting_synchro = synchro; - cond->sleeping.push_back(*simcall->issuer); - XBT_OUT(); -} - -/** - * @brief Handle a condition waiting simcall without timeouts - */ +/** @brief Handle a condition waiting simcall without timeouts */ void simcall_HANDLER_cond_wait(smx_simcall_t simcall, smx_cond_t cond, smx_mutex_t mutex) { - XBT_IN("(%p)", simcall); - smx_actor_t issuer = simcall->issuer; - - _SIMIX_cond_wait(cond, mutex, -1, issuer, simcall); - XBT_OUT(); + cond->wait(mutex, -1, simcall->issuer_); } -/** - * @brief Handle a condition waiting simcall with timeouts - */ +/** @brief Handle a condition waiting simcall with timeouts */ void simcall_HANDLER_cond_wait_timeout(smx_simcall_t simcall, smx_cond_t cond, smx_mutex_t mutex, double timeout) { - XBT_IN("(%p)", simcall); - smx_actor_t issuer = simcall->issuer; - simcall_cond_wait_timeout__set__result(simcall, 0); // default result, will be set to 1 on timeout - _SIMIX_cond_wait(cond, mutex, timeout, issuer, simcall); - XBT_OUT(); + cond->wait(mutex, timeout, simcall->issuer_); } namespace simgrid { @@ -78,23 +43,23 @@ void ConditionVariableImpl::signal() /* If there are processes waiting for the condition choose one and try to make it acquire the mutex */ - if (not sleeping.empty()) { - auto& proc = sleeping.front(); - sleeping.pop_front(); + if (not sleeping_.empty()) { + auto& proc = sleeping_.front(); + sleeping_.pop_front(); /* Destroy waiter's synchronization */ proc.waiting_synchro = nullptr; /* Now transform the cond wait simcall into a mutex lock one */ smx_simcall_t simcall = &proc.simcall; - smx_mutex_t simcall_mutex; - if (simcall->call == SIMCALL_COND_WAIT) + MutexImpl* simcall_mutex; + if (simcall->call_ == SIMCALL_COND_WAIT) simcall_mutex = simcall_cond_wait__get__mutex(simcall); else simcall_mutex = simcall_cond_wait_timeout__get__mutex(simcall); - simcall->call = SIMCALL_MUTEX_LOCK; + simcall->call_ = SIMCALL_MUTEX_LOCK; - simcall_HANDLER_mutex_lock(simcall, simcall_mutex); + simcall_mutex->lock(simcall->issuer_); } XBT_OUT(); } @@ -110,10 +75,29 @@ void ConditionVariableImpl::broadcast() XBT_DEBUG("Broadcast condition %p", this); /* Signal the condition until nobody is waiting on it */ - while (not sleeping.empty()) + while (not sleeping_.empty()) signal(); } +void ConditionVariableImpl::wait(smx_mutex_t mutex, double timeout, actor::ActorImpl* issuer) +{ + XBT_DEBUG("Wait condition %p", this); + + /* If there is a mutex unlock it */ + if (mutex != nullptr) { + xbt_assert(mutex->owner_ == issuer, + "Actor %s cannot wait on ConditionVariable %p since it does not own the provided mutex %p", + issuer->get_cname(), this, mutex); + mutex_ = mutex; + mutex->unlock(issuer); + } + + RawImplPtr synchro(new RawImpl()); + synchro->set_host(issuer->get_host()).set_timeout(timeout).start(); + synchro->register_simcall(&issuer->simcall); + sleeping_.push_back(*issuer); +} + // boost::intrusive_ptr support: void intrusive_ptr_add_ref(simgrid::kernel::activity::ConditionVariableImpl* cond) { @@ -124,10 +108,10 @@ void intrusive_ptr_release(simgrid::kernel::activity::ConditionVariableImpl* con { if (cond->refcount_.fetch_sub(1, std::memory_order_release) == 1) { std::atomic_thread_fence(std::memory_order_acquire); - xbt_assert(cond->sleeping.empty(), "Cannot destroy conditional since someone is still using it"); + xbt_assert(cond->sleeping_.empty(), "Cannot destroy conditional since someone is still using it"); delete cond; } } } // namespace activity } // namespace kernel -} +} // namespace simgrid