ladybird/Kernel/Locking/LockLocation.h
2021-12-15 23:34:11 -08:00

36 lines
868 B
C++

/*
* Copyright (c) 2021, Brian Gianforcaro <bgianf@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/StdLibExtras.h>
#include <Kernel/Debug.h>
#if LOCK_DEBUG
# include <AK/SourceLocation.h>
#endif
// Abstract SourceLocation away from the kernel's locking API to avoid a
// significant amount of #ifdefs in Mutex / MutexLocker / etc.
//
// To do this we declare LockLocation to be a zero sized struct which will
// get optimized out during normal compilation. When LOCK_DEBUG is enabled,
// we forward the implementation to AK::SourceLocation and get rich debugging
// information for every caller.
namespace Kernel {
#if LOCK_DEBUG
using LockLocation = SourceLocation;
#else
struct LockLocation {
static constexpr LockLocation current() { return {}; }
private:
constexpr LockLocation() = default;
};
#endif
}