mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-12 05:22:08 +00:00
107 lines
3.5 KiB
C++
107 lines
3.5 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stratosphere.hpp>
|
|
#include "impl/os_thread_manager.hpp"
|
|
#include "impl/os_timeout_helper.hpp"
|
|
#include "impl/os_mutex_impl.hpp"
|
|
|
|
namespace ams::os {
|
|
|
|
void InitializeConditionVariable(ConditionVariableType *cv) {
|
|
/* Construct object. */
|
|
new (GetPointer(cv->_storage)) impl::InternalConditionVariable;
|
|
|
|
/* Mark initialized. */
|
|
cv->state = ConditionVariableType::State_Initialized;
|
|
}
|
|
|
|
void FinalizeConditionVariable(ConditionVariableType *cv) {
|
|
AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
|
|
|
|
/* Mark not initialized. */
|
|
cv->state = ConditionVariableType::State_NotInitialized;
|
|
|
|
/* Destroy objects. */
|
|
GetReference(cv->_storage).~InternalConditionVariable();
|
|
}
|
|
|
|
void SignalConditionVariable(ConditionVariableType *cv) {
|
|
AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
|
|
|
|
GetReference(cv->_storage).Signal();
|
|
}
|
|
|
|
void BroadcastConditionVariable(ConditionVariableType *cv) {
|
|
AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
|
|
|
|
GetReference(cv->_storage).Broadcast();
|
|
}
|
|
|
|
void WaitConditionVariable(ConditionVariableType *cv, MutexType *m) {
|
|
AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
|
|
|
|
AMS_ASSERT(m->state == MutexType::State_Initialized);
|
|
AMS_ASSERT(m->owner_thread == impl::GetCurrentThread());
|
|
AMS_ASSERT(m->nest_count == 1);
|
|
|
|
impl::PopAndCheckLockLevel(m);
|
|
|
|
if ((--m->nest_count) == 0) {
|
|
m->owner_thread = nullptr;
|
|
}
|
|
|
|
GetReference(cv->_storage).Wait(GetPointer(m->_storage));
|
|
|
|
impl::PushAndCheckLockLevel(m);
|
|
|
|
++m->nest_count;
|
|
m->owner_thread = impl::GetCurrentThread();
|
|
}
|
|
|
|
ConditionVariableStatus TimedWaitConditionVariable(ConditionVariableType *cv, MutexType *m, TimeSpan timeout) {
|
|
AMS_ASSERT(cv->state == ConditionVariableType::State_Initialized);
|
|
|
|
AMS_ASSERT(m->state == MutexType::State_Initialized);
|
|
AMS_ASSERT(m->owner_thread == impl::GetCurrentThread());
|
|
AMS_ASSERT(m->nest_count == 1);
|
|
|
|
AMS_ASSERT(timeout.GetNanoSeconds() >= 0);
|
|
|
|
impl::PopAndCheckLockLevel(m);
|
|
|
|
if ((--m->nest_count) == 0) {
|
|
m->owner_thread = nullptr;
|
|
}
|
|
|
|
ConditionVariableStatus status;
|
|
if (timeout == TimeSpan(0)) {
|
|
GetReference(m->_storage).Leave();
|
|
GetReference(m->_storage).Enter();
|
|
status = ConditionVariableStatus::TimedOut;
|
|
} else {
|
|
impl::TimeoutHelper timeout_helper(timeout);
|
|
status = GetReference(cv->_storage).TimedWait(GetPointer(m->_storage), timeout_helper);
|
|
}
|
|
|
|
impl::PushAndCheckLockLevel(m);
|
|
|
|
++m->nest_count;
|
|
m->owner_thread = impl::GetCurrentThread();
|
|
|
|
return status;
|
|
}
|
|
|
|
}
|