construct/include/ircd/asio.h

/*
 * charybdis: standing on the shoulders of giant build times
 *
 * Copyright (C) 2017 Charybdis Development Team
 * Copyright (C) 2017 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once
#define HAVE_IRCD_ASIO_H

///
/// Boost library
///
/// It is better to add a boost header which we have omitted here rather than
/// in your definition file, and then #include <ircd/asio.h>. This is because
/// we can compose a precompiled header for your definition file much easier
/// this way.
///
/// Note that there is no precompile for this header right now, only the
/// standard headers. That still significantly improves compile times of these
/// boost headers for the time being...
///

#include <boost/asio.hpp>
#include <boost/asio/ssl.hpp>
#include <boost/asio/steady_timer.hpp>
#include <boost/asio/spawn.hpp>
#include <boost/asio/io_service.hpp>

namespace ircd
{
	std::exception_ptr make_eptr(const boost::system::error_code &ec);

	string_view string(const mutable_buffer &, const boost::system::error_code &);
	string_view string(const mutable_buffer &, const boost::system::system_error &);
	std::string string(const boost::system::error_code &);
	std::string string(const boost::system::system_error &);
}

struct ircd::strand
:asio::io_service::strand
{
    using handler = std::function<void ()>;

    operator const asio::io_service &() const;
    operator asio::io_service &();

	strand(asio::io_service &ios)
	:asio::io_service::strand{ios}
	{}
};

///
/// The following IRCd headers are not included in the main stdinc.h list of
/// includes because they require boost directly or symbols which we cannot
/// forward declare. You should include this in your definition file if you
/// need these low-level interfaces.
///

#include <ircd/ctx/continuation.h>
#include <ircd/net/asio.h>
#include <ircd/net/socket.h>

inline ircd::strand::operator
asio::io_service &()
{
    return get_io_service();
}

inline ircd::strand::operator
const asio::io_service &()
const
{
    return const_cast<strand *>(this)->get_io_service();
}