mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-24 03:06:17 +00:00
102 lines
3.8 KiB
C++
102 lines
3.8 KiB
C++
/*
|
|
* Copyright (c) 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"
|
|
|
|
namespace ams::os {
|
|
|
|
void SdkConditionVariableType::Wait(SdkMutexType &mutex) {
|
|
/* Check that we own the mutex. */
|
|
AMS_ABORT_UNLESS(os::IsSdkMutexLockedByCurrentThread(std::addressof(mutex)));
|
|
|
|
/* Wait on the mutex. */
|
|
GetReference(this->_storage).Wait(GetPointer(mutex._storage));
|
|
}
|
|
|
|
bool SdkConditionVariableType::TimedWait(SdkMutexType &mutex, TimeSpan timeout) {
|
|
/* Check preconditions. */
|
|
AMS_ASSERT(timeout.GetNanoSeconds() >= 0);
|
|
AMS_ABORT_UNLESS(os::IsSdkMutexLockedByCurrentThread(std::addressof(mutex)));
|
|
|
|
/* Handle zero timeout by unlocking and re-locking. */
|
|
if (timeout == TimeSpan(0)) {
|
|
GetReference(mutex._storage).Leave();
|
|
GetReference(mutex._storage).Enter();
|
|
return false;
|
|
}
|
|
|
|
/* Handle timed wait. */
|
|
impl::TimeoutHelper timeout_helper(timeout);
|
|
auto status = GetReference(this->_storage).TimedWait(GetPointer(mutex._storage), timeout_helper);
|
|
return status == ConditionVariableStatus::Success;
|
|
}
|
|
|
|
void SdkConditionVariableType::Wait(SdkRecursiveMutexType &mutex) {
|
|
/* Check preconditions. */
|
|
AMS_ABORT_UNLESS(os::IsSdkRecursiveMutexLockedByCurrentThread(std::addressof(mutex)));
|
|
AMS_ABORT_UNLESS(mutex.recursive_count == 1);
|
|
|
|
/* Decrement the mutex's recursive count. */
|
|
--mutex.recursive_count;
|
|
|
|
/* Wait on the mutex. */
|
|
GetReference(this->_storage).Wait(GetPointer(mutex._storage));
|
|
|
|
/* Increment the mutex's recursive count. */
|
|
++mutex.recursive_count;
|
|
|
|
/* Check that the mutex's recursive count is valid. */
|
|
AMS_ABORT_UNLESS(mutex.recursive_count != 0);
|
|
}
|
|
|
|
bool SdkConditionVariableType::TimedWait(SdkRecursiveMutexType &mutex, TimeSpan timeout) {
|
|
/* Check preconditions. */
|
|
AMS_ASSERT(timeout.GetNanoSeconds() >= 0);
|
|
AMS_ABORT_UNLESS(os::IsSdkRecursiveMutexLockedByCurrentThread(std::addressof(mutex)));
|
|
|
|
/* Handle zero timeout by unlocking and re-locking. */
|
|
if (timeout == TimeSpan(0)) {
|
|
/* NOTE: Nintendo doesn't check recursive_count here...seems really suspicious? */
|
|
/* Not sure that this is correct, or if they just forgot to check. */
|
|
GetReference(mutex._storage).Leave();
|
|
GetReference(mutex._storage).Enter();
|
|
return false;
|
|
}
|
|
|
|
/* Check that the mutex is held exactly once. */
|
|
AMS_ABORT_UNLESS(mutex.recursive_count == 1);
|
|
|
|
/* Decrement the mutex's recursive count. */
|
|
--mutex.recursive_count;
|
|
|
|
/* Create timeout helper. */
|
|
impl::TimeoutHelper timeout_helper(timeout);
|
|
|
|
/* Perform timed wait. */
|
|
auto status = GetReference(this->_storage).TimedWait(GetPointer(mutex._storage), timeout_helper);
|
|
|
|
/* Increment the mutex's recursive count. */
|
|
++mutex.recursive_count;
|
|
|
|
/* Check that the mutex's recursive count is valid. */
|
|
AMS_ABORT_UNLESS(mutex.recursive_count != 0);
|
|
|
|
/* Return whether we succeeded. */
|
|
return status == ConditionVariableStatus::Success;
|
|
}
|
|
|
|
}
|