mirror of
https://github.com/matrix-construct/construct
synced 2024-11-17 23:40:57 +01:00
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
/*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 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.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#define HAVE_IRCD_CTX_CONTINUATION_H
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#include <boost/asio/spawn.hpp>
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namespace ircd::ctx
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{
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struct continuation;
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}
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namespace ircd
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{
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using ctx::continuation;
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using yield = boost::asio::yield_context;
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}
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/// This object is placed on the top of the stack when the context is yielding (INTERNAL USE).
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///
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/// The continuation constructor is the last thing executed before a context yields.
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/// The continuation destructor is the first thing executed when a context continues.
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///
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struct ircd::ctx::continuation
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{
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ctx *self;
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operator const boost::asio::yield_context &() const;
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operator boost::asio::yield_context &();
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continuation(ctx *const &self = ircd::ctx::current);
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~continuation() noexcept;
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};
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