Atmosphere/libraries/libstratosphere/include/stratosphere/os/os_sdk_mutex.hpp

60 lines
2.1 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/>.
*/
#pragma once
#include <vapours.hpp>
#include <stratosphere/os/impl/os_internal_critical_section.hpp>
namespace ams::os {
class SdkConditionVariable;
struct SdkMutexType {
union {
s32 _arr[sizeof(impl::InternalCriticalSectionStorage) / sizeof(s32)];
impl::InternalCriticalSectionStorage _storage;
};
};
static_assert(std::is_trivial<SdkMutexType>::value);
void InitializeSdkMutex(SdkMutexType *mutex);
void LockSdkMutex(SdkMutexType *mutex);
bool TryLockSdkMutex(SdkMutexType *mutex);
void UnlockSdkMutex(SdkMutexType *mutex);
bool IsSdkMutexLockedByCurrentThread(const SdkMutexType *mutex);
class SdkMutex {
private:
friend class SdkConditionVariable;
private:
SdkMutexType m_mutex;
public:
constexpr SdkMutex() : m_mutex{{0}} { /* ... */ }
ALWAYS_INLINE void Lock() { return os::LockSdkMutex(std::addressof(m_mutex)); }
ALWAYS_INLINE bool TryLock() { return os::TryLockSdkMutex(std::addressof(m_mutex)); }
ALWAYS_INLINE void Unlock() { return os::UnlockSdkMutex(std::addressof(m_mutex)); }
ALWAYS_INLINE bool IsLockedByCurrentThread() const { return os::IsSdkMutexLockedByCurrentThread(std::addressof(m_mutex)); }
ALWAYS_INLINE void lock() { return this->Lock(); }
ALWAYS_INLINE bool try_lock() { return this->TryLock(); }
ALWAYS_INLINE void unlock() { return this->Unlock(); }
};
}