mirror of
https://github.com/matrix-construct/construct
synced 2024-12-02 03:32:52 +01:00
88 lines
3.1 KiB
C++
88 lines
3.1 KiB
C++
// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk
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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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#pragma once
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#define HAVE_IRCD_SERVER_LINK_H
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/// A single connection to a remote node.
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///
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struct ircd::server::link
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{
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bool init {false}; ///< link is connecting
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bool fini {false}; ///< link is disconnecting
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bool exclude {false}; ///< link is excluded
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std::shared_ptr<server::node> node; ///< backreference to node
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std::shared_ptr<net::socket> socket; ///< link's socket
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std::list<tag> queue; ///< link's work queue
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template<class F> size_t accumulate_tags(F&&) const;
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void discard_read();
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const_buffer process_read_next(const const_buffer &, tag &, bool &done);
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bool process_read(const_buffer &);
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void handle_readable_success();
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void handle_readable(const error_code &);
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void wait_readable();
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const_buffer process_write_next(const const_buffer &);
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bool process_write(tag &);
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void handle_writable_success();
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void handle_writable(const error_code &);
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void wait_writable();
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void handle_close(std::exception_ptr);
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void handle_open(std::exception_ptr);
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public:
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// config related
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size_t tag_max() const;
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size_t tag_commit_max() const;
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// indicator lights
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bool connected() const noexcept;
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bool ready() const;
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bool busy() const;
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// stats for upload-side bytes across all tags
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size_t write_total() const;
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size_t write_completed() const;
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size_t write_remaining() const;
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// stats for download-side bytes ~across all tags~; note: this is not
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// accurate except for the one tag at the front of the queue having
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// its response processed.
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size_t read_total() const; // see: tag::read_total() notes
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size_t read_completed() const; // see: tag::read_completed() notes
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size_t read_remaining() const; // see: tag::read_remaining() notes
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// stats for tags
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size_t tag_count() const;
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size_t tag_committed() const;
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size_t tag_uncommitted() const;
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// request panel
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void submit(request &);
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// control panel
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bool close(const net::close_opts & = net::close_opts_default);
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bool open(const net::open_opts &);
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link(server::node &);
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~link() noexcept;
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};
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