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