mirror of
https://github.com/matrix-construct/construct
synced 2024-12-29 00:44:17 +01:00
86 lines
2.2 KiB
C++
86 lines
2.2 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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using namespace ircd;
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static void _init();
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static void _fini();
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mapi::header
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IRCD_MODULE
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{
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"Matrix Virtual Machine: Fetch Unit", _init, _fini
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};
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// Fetch unit state
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namespace ircd::m::vm::fetch
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{
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struct request;
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extern ctx::dock dock;
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extern std::set<request, request> fetching;
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extern std::deque<request *> fetched;
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extern hookfn<eval &> hook;
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extern ctx::context context;
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// worker stack
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static bool requesting();
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static bool handle();
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static void worker();
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// interface stack
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static request &_fetch(const m::room::id &, const m::event::id &);
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static bool remove(const m::event::id &);
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extern "C" bool prefetch(const m::room::id &, const m::event::id &);
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extern "C" json::object acquire(const m::room::id &, const m::event::id &, const mutable_buffer &);
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// phase stack
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static void enter(const event &, vm::eval &);
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}
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/// Fetch entity state
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struct ircd::m::vm::fetch::request
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:m::v1::event
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{
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using is_transparent = void;
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m::room::id::buf room_id;
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m::event::id::buf event_id;
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unique_buffer<mutable_buffer> _buf;
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mutable_buffer buf;
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std::set<std::string, std::less<>> attempted;
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string_view origin;
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time_t started {0};
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time_t last {0};
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time_t finished {0};
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std::exception_ptr eptr;
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ctx::dock dock;
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bool operator()(const request &a, const request &b) const;
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bool operator()(const request &a, const string_view &b) const;
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bool operator()(const string_view &a, const request &b) const;
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void finish();
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void retry();
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void handle();
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string_view select_origin(const string_view &);
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string_view select_random_origin();
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void start(m::v1::event::opts &&);
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void start();
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request(const m::room::id &room_id,
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const m::event::id &event_id,
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const mutable_buffer & = {});
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request() = default;
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request(request &&) = delete;
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request(const request &) = delete;
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};
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