#include "src/kernel/activity/ConditionVariableImpl.hpp"
#include "src/kernel/activity/MutexImpl.hpp"
-#include "src/kernel/activity/SynchroRaw.hpp"
+#include "src/kernel/activity/SemaphoreImpl.hpp"
#include "src/kernel/context/Context.hpp"
#include "src/simix/smx_synchro_private.hpp"
-#include "src/surf/cpu_interface.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_synchro, simix, "SIMIX Synchronization (mutex, semaphores and conditions)");
/***************************** Raw synchronization *********************************/
-smx_activity_t SIMIX_synchro_wait(sg_host_t smx_host, double timeout)
-{
- XBT_IN("(%p, %f)",smx_host,timeout);
-
- simgrid::kernel::activity::RawImplPtr sync =
- simgrid::kernel::activity::RawImplPtr(new simgrid::kernel::activity::RawImpl());
- sync->surf_action_ = smx_host->pimpl_cpu->sleep(timeout);
- sync->surf_action_->set_data(sync.get());
- XBT_OUT();
- return sync;
-}
-
void SIMIX_synchro_stop_waiting(smx_actor_t process, smx_simcall_t simcall)
{
XBT_IN("(%p, %p)",process,simcall);
break;
case SIMCALL_COND_WAIT:
- simgrid::xbt::intrusive_erase(simcall_cond_wait__get__cond(simcall)->sleeping, *process);
+ simgrid::xbt::intrusive_erase(simcall_cond_wait__get__cond(simcall)->sleeping_, *process);
break;
case SIMCALL_COND_WAIT_TIMEOUT:
- simgrid::xbt::intrusive_erase(simcall_cond_wait_timeout__get__cond(simcall)->sleeping, *process);
+ simgrid::xbt::intrusive_erase(simcall_cond_wait_timeout__get__cond(simcall)->sleeping_, *process);
simcall_cond_wait_timeout__set__result(simcall, 1); // signal a timeout
break;
case SIMCALL_SEM_ACQUIRE:
- simgrid::xbt::intrusive_erase(simcall_sem_acquire__get__sem(simcall)->sleeping, *process);
+ simgrid::xbt::intrusive_erase(simcall_sem_acquire__get__sem(simcall)->sleeping_, *process);
break;
case SIMCALL_SEM_ACQUIRE_TIMEOUT:
- simgrid::xbt::intrusive_erase(simcall_sem_acquire_timeout__get__sem(simcall)->sleeping, *process);
+ simgrid::xbt::intrusive_erase(simcall_sem_acquire_timeout__get__sem(simcall)->sleeping_, *process);
simcall_sem_acquire_timeout__set__result(simcall, 1); // signal a timeout
break;
}
XBT_OUT();
}
-
-void SIMIX_synchro_finish(smx_activity_t synchro)
-{
- XBT_IN("(%p)", synchro.get());
- smx_simcall_t simcall = synchro->simcalls_.front();
- synchro->simcalls_.pop_front();
-
- if (synchro->state_ != SIMIX_SRC_TIMEOUT) {
- if (synchro->state_ == SIMIX_FAILED)
- simcall->issuer->context_->iwannadie = true;
- else
- THROW_IMPOSSIBLE;
- }
-
- SIMIX_synchro_stop_waiting(simcall->issuer, simcall);
- simcall->issuer->waiting_synchro = nullptr;
- SIMIX_simcall_answer(simcall);
- XBT_OUT();
-}
-
-/******************************** Semaphores **********************************/
-/** @brief Initialize a semaphore */
-smx_sem_t SIMIX_sem_init(unsigned int value)
-{
- XBT_IN("(%u)",value);
- smx_sem_t sem = new s_smx_sem_t;
- sem->value = value;
- XBT_OUT();
- return sem;
-}
-
-/** @brief Destroys a semaphore */
-void SIMIX_sem_destroy(smx_sem_t sem)
-{
- XBT_IN("(%p)",sem);
- XBT_DEBUG("Destroy semaphore %p", sem);
- if (sem != nullptr) {
- xbt_assert(sem->sleeping.empty(), "Cannot destroy semaphore since someone is still using it");
- delete sem;
- }
- XBT_OUT();
-}
-
-/** @brief release the semaphore
- *
- * Unlock a process waiting on the semaphore.
- * If no one was blocked, the semaphore capacity is increased by 1.
- */
-void SIMIX_sem_release(smx_sem_t sem)
-{
- XBT_IN("(%p)",sem);
- XBT_DEBUG("Sem release semaphore %p", sem);
- if (not sem->sleeping.empty()) {
- auto& proc = sem->sleeping.front();
- sem->sleeping.pop_front();
- proc.waiting_synchro = nullptr;
- SIMIX_simcall_answer(&proc.simcall);
- } else {
- sem->value++;
- }
- XBT_OUT();
-}
-
-/** @brief Returns true if acquiring this semaphore would block */
-int SIMIX_sem_would_block(smx_sem_t sem)
-{
- XBT_IN("(%p)",sem);
- XBT_OUT();
- return (sem->value <= 0);
-}
-
-/** @brief Returns the current capacity of the semaphore */
-int SIMIX_sem_get_capacity(smx_sem_t sem)
-{
- XBT_IN("(%p)",sem);
- XBT_OUT();
- return sem->value;
-}
-
-static void _SIMIX_sem_wait(smx_sem_t sem, double timeout, smx_actor_t issuer,
- smx_simcall_t simcall)
-{
- XBT_IN("(%p, %f, %p, %p)",sem,timeout,issuer,simcall);
- smx_activity_t synchro = nullptr;
-
- XBT_DEBUG("Wait semaphore %p (timeout:%f)", sem, timeout);
- if (sem->value <= 0) {
- synchro = SIMIX_synchro_wait(issuer->host_, timeout);
- synchro->simcalls_.push_front(simcall);
- issuer->waiting_synchro = synchro;
- sem->sleeping.push_back(*issuer);
- } else {
- sem->value--;
- SIMIX_simcall_answer(simcall);
- }
- XBT_OUT();
-}
-
-/**
- * @brief Handles a sem acquire simcall without timeout.
- */
-void simcall_HANDLER_sem_acquire(smx_simcall_t simcall, smx_sem_t sem)
-{
- XBT_IN("(%p)",simcall);
- _SIMIX_sem_wait(sem, -1, simcall->issuer, simcall);
- XBT_OUT();
-}
-
-/**
- * @brief Handles a sem acquire simcall with timeout.
- */
-void simcall_HANDLER_sem_acquire_timeout(smx_simcall_t simcall, smx_sem_t sem, double timeout)
-{
- XBT_IN("(%p)",simcall);
- simcall_sem_acquire_timeout__set__result(simcall, 0); // default result, will be set to 1 on timeout
- _SIMIX_sem_wait(sem, timeout, simcall->issuer, simcall);
- XBT_OUT();
-}
