mirror of
https://github.com/matrix-construct/construct
synced 2024-12-26 07:23:53 +01:00
48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_CTX_UNLOCK_GUARD_H
|
|
|
|
namespace ircd::ctx
|
|
{
|
|
template<class lockable> struct unlock_guard;
|
|
}
|
|
|
|
/// Inverse of std::lock_guard<>
|
|
template<class lockable>
|
|
struct ircd::ctx::unlock_guard
|
|
{
|
|
lockable &l;
|
|
|
|
unlock_guard(lockable &l);
|
|
unlock_guard(unlock_guard &&) = delete;
|
|
unlock_guard(const unlock_guard &) = delete;
|
|
~unlock_guard() noexcept;
|
|
};
|
|
|
|
namespace ircd
|
|
{
|
|
using ctx::unlock_guard;
|
|
}
|
|
|
|
template<class lockable>
|
|
ircd::ctx::unlock_guard<lockable>::unlock_guard(lockable &l)
|
|
:l{l}
|
|
{
|
|
l.unlock();
|
|
}
|
|
|
|
template<class lockable>
|
|
ircd::ctx::unlock_guard<lockable>::~unlock_guard()
|
|
noexcept
|
|
{
|
|
l.lock();
|
|
}
|