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Atmosphere/libraries/libstratosphere/include/stratosphere/os/os_rw_lock.hpp
2020-04-21 20:23:50 -07:00

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/*
* 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/>.
*/
#pragma once
#include <stratosphere/os/os_rw_lock_common.hpp>
#include <stratosphere/os/os_rw_lock_types.hpp>
#include <stratosphere/os/os_rw_lock_api.hpp>
namespace ams::os {
class ReadWriteLock {
NON_COPYABLE(ReadWriteLock);
NON_MOVEABLE(ReadWriteLock);
private:
ReadWriteLockType rw_lock;
public:
constexpr explicit ReadWriteLock() : rw_lock{{}, 0, ::ams::os::ReadWriteLockType::State_Initialized, nullptr, 0, {}, {}} { /* ... */ }
~ReadWriteLock() { os::FinalizeReadWriteLock(std::addressof(this->rw_lock)); }
void AcquireReadLock() {
return os::AcquireReadLock(std::addressof(this->rw_lock));
}
bool TryAcquireReadLock() {
return os::TryAcquireReadLock(std::addressof(this->rw_lock));
}
void ReleaseReadLock() {
return os::ReleaseReadLock(std::addressof(this->rw_lock));
}
void AcquireWriteLock() {
return os::AcquireWriteLock(std::addressof(this->rw_lock));
}
bool TryAcquireWriteLock() {
return os::TryAcquireWriteLock(std::addressof(this->rw_lock));
}
void ReleaseWriteLock() {
return os::ReleaseWriteLock(std::addressof(this->rw_lock));
}
bool IsReadLockHeld() const {
return os::IsReadLockHeld(std::addressof(this->rw_lock));
}
bool IsWriteLockHeldByCurrentThread() const {
return os::IsWriteLockHeldByCurrentThread(std::addressof(this->rw_lock));
}
bool IsLockOwner() const {
return os::IsReadWriteLockOwnerThread(std::addressof(this->rw_lock));
}
void lock_shared() {
return this->AcquireReadLock();
}
bool try_lock_shared() {
return this->TryAcquireReadLock();
}
void unlock_shared() {
return this->ReleaseReadLock();
}
void lock() {
return this->AcquireWriteLock();
}
bool try_lock() {
return this->TryAcquireWriteLock();
}
void unlock() {
return this->ReleaseWriteLock();
}
operator ReadWriteLockType &() {
return this->rw_lock;
}
operator const ReadWriteLockType &() const {
return this->rw_lock;
}
ReadWriteLockType *GetBase() {
return std::addressof(this->rw_lock);
}
};
}