mirror of
https://github.com/matrix-construct/construct
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52 lines
2.1 KiB
C++
52 lines
2.1 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) 2016-2019 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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#pragma once
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#define HAVE_IRCD_M_ROOM_STATE_SPACE_H
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/// Interface to all room states. This is a super-dimension of m::room::state.
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/// This contains all state events without overwriting them; we refer to this
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/// as the state-space. We use this interface as a tool to reconstruct the
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/// state of the room at the point of an event in the past; or efficiently
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/// rebuild the present state table after inconsistencies, etc.
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///
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struct ircd::m::room::state::space
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{
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struct rebuild;
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using closure = std::function<bool (const string_view &, const string_view &, const int64_t &, const event::idx &)>;
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m::room room;
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public:
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bool for_each(const string_view &type, const string_view &state_key, const int64_t &depth, const closure &) const;
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bool for_each(const string_view &type, const string_view &state_key, const closure &) const;
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bool for_each(const string_view &type, const closure &) const;
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bool for_each(const closure &) const;
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size_t count(const string_view &type, const string_view &state_key, const int64_t &depth) const;
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size_t count(const string_view &type, const string_view &state_key) const;
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size_t count(const string_view &type) const;
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size_t count() const;
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bool has(const string_view &type, const string_view &state_key, const int64_t &depth) const;
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bool has(const string_view &type, const string_view &state_key) const;
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bool has(const string_view &type) const;
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bool prefetch(const string_view &type, const string_view &state_key, const int64_t &depth) const;
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bool prefetch(const string_view &type, const string_view &state_key) const;
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bool prefetch(const string_view &type) const;
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space(const m::room &);
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};
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struct ircd::m::room::state::space::rebuild
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{
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rebuild(const room::id &);
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};
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