mirror of
https://github.com/matrix-construct/construct
synced 2024-10-30 02:18:58 +01:00
273 lines
4.9 KiB
C++
273 lines
4.9 KiB
C++
/*
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* Copyright (C) 2017 Charybdis Development Team
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* Copyright (C) 2017 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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#include <ircd/server.h>
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#include <ircd/asio.h>
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//
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// init
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//
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ircd::server::init::init()
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{
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}
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ircd::server::init::~init()
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noexcept
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{
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ircd::server::nodes.clear();
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}
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//
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// server
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//
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ircd::http::request::write_closure
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ircd::write_closure(server &server)
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{
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// returns a function that can be called to send an iovector of data to a server
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return [&server](const ilist<const_buffer> &iov)
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{
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//std::cout << "<<<<" << std::endl;
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//std::cout << iov << std::endl;
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//std::cout << "----" << std::endl;
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write(server, iov);
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};
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}
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ircd::parse::read_closure
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ircd::read_closure(server &server)
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{
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// Returns a function the parser can call when it wants more data
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return [&server](char *&start, char *const &stop)
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{
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char *const s(start);
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read(server, start, stop);
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//std::cout << ">>>>" << std::endl;
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//std::cout << string_view{s, start} << std::endl;
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//std::cout << "----" << std::endl;
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};
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}
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char *
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ircd::read(server &server,
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char *&start,
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char *const &stop)
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try
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{
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auto &sock
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{
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*(*begin(server.n->links)).s
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};
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const std::array<mutable_buffer, 1> bufs
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{{
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{ start, stop }
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}};
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char *const base(start);
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start += sock.read_some(bufs);
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return base;
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}
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catch(const boost::system::system_error &e)
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{
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using namespace boost::system::errc;
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log::error("read error: %s: %s",
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string(server.n->remote),
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string(e));
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if(ircd::runlevel == ircd::runlevel::QUIT)
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throw;
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switch(e.code().value())
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{
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case SSL_R_SHORT_READ:
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case boost::asio::error::eof:
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{
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auto &link{*begin(server.n->links)};
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link.disconnect();
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if(!link.connect(server.n->remote))
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throw;
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return read(server, start, stop);
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}
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case operation_canceled:
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throw http::error(http::REQUEST_TIMEOUT);
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default:
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throw;
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}
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}
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size_t
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ircd::write(server &server,
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const ilist<const_buffer> &iov)
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try
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{
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auto &sock
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{
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*(*begin(server.n->links)).s
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};
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return sock.write(iov);
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}
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catch(const boost::system::system_error &e)
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{
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using namespace boost::system::errc;
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log::error("write error: %s %s",
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string(server.n->remote),
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string(e));
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switch(e.code().value())
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{
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case SSL_R_SHORT_READ:
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case boost::asio::error::eof:
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case protocol_error:
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case broken_pipe:
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{
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auto &link{*begin(server.n->links)};
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link.disconnect();
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if(!link.connect(server.n->remote))
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throw;
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return write(server, iov);
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}
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case operation_canceled:
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throw http::error(http::REQUEST_TIMEOUT);
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default:
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throw;
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}
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}
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//
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// server
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//
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ircd::server::server(net::remote remote)
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:n{[&remote]
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{
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const auto &ipp
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{
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static_cast<const net::ipport &>(remote)
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};
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const auto it(nodes.lower_bound(ipp));
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if(it == nodes.end() || it->first != ipp)
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{
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const auto ipp{static_cast<net::ipport>(remote)};
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const auto n{std::make_shared<node>(std::move(remote))};
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nodes.emplace_hint(it, ipp, n);
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return n;
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}
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return it->second;
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}()}
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,it
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{
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n->tags, n->tags.emplace(n->tags.end(), this)
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}
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{
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}
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ircd::server::~server()
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noexcept
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{
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}
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ircd::server::operator
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const ircd::net::remote &()
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const
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{
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static const ircd::net::remote null_remote {};
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if(unlikely(!n))
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return null_remote;
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return n->remote;
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}
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decltype(ircd::server::nodes)
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ircd::server::nodes
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{};
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//
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// node
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//
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ircd::server::node::node(net::remote remote)
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:remote{std::move(remote)}
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{
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add(1);
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}
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ircd::server::node::~node()
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noexcept
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{
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}
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void
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ircd::server::node::add(const size_t &num)
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{
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links.emplace_back(remote);
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}
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void
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ircd::server::node::del(const size_t &num)
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{
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}
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//
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// link
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//
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ircd::server::link::link(const net::remote &remote)
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:s{std::make_shared<net::socket>()}
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,state{state::DEAD}
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{
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connect(remote);
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}
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bool
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ircd::server::link::disconnect()
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{
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return net::disconnect(*s);
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}
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bool
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ircd::server::link::connect(const net::remote &remote)
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{
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if(connected())
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return false;
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s->connect(remote, 30000ms);
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return true;
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}
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bool
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ircd::server::link::connected()
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const noexcept
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{
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return net::connected(*s);
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}
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