mirror of
https://github.com/matrix-construct/construct
synced 2024-08-19 08:04:43 +02:00
294 lines
5.1 KiB
C++
294 lines
5.1 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) 2016-2018 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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decltype(ircd::m::rooms::opts_default)
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ircd::m::rooms::opts_default;
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void
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ircd::m::rooms::dump__file(const opts &opts,
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const string_view &filename)
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{
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const fs::fd file
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{
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filename, std::ios::out | std::ios::app
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};
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// POSIX_FADV_DONTNEED
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fs::evict(file);
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size_t len(0), num(0);
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for_each(opts, [&](const auto &room_id)
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{
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const const_buffer bufs[]
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{
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room_id, "\n"_sv
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};
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len += fs::append(file, bufs);
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++num;
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char pbuf[48];
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log::info
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{
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log, "dump[%s] rooms:%zu %s %s",
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filename,
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num,
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pretty(pbuf, iec(len)),
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string_view{room_id},
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};
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return true;
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});
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char pbuf[48];
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log::notice
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{
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log, "dump[%s] complete rooms:%zu using %s",
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filename,
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num,
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pretty(pbuf, iec(len)),
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};
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}
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bool
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ircd::m::rooms::has(const opts &opts)
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{
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return !for_each(opts, []
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(const m::room::id &)
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{
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// false to break; for_each() returns false
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return false;
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});
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}
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size_t
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ircd::m::rooms::count(const opts &opts)
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{
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size_t ret{0};
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for_each(opts, [&ret]
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(const m::room::id &)
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{
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++ret;
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return true;
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});
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return ret;
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}
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bool
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ircd::m::rooms::for_each(const room::id::closure_bool &closure)
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{
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return for_each(opts_default, closure);
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}
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bool
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ircd::m::rooms::for_each(const opts &opts,
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const room::id::closure_bool &closure)
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{
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bool ret{true};
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const auto proffer{[&opts, &closure, &ret]
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(const m::room::id &room_id)
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{
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if(opts.room_id && !opts.lower_bound)
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{
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ret = false;
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return;
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}
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const m::room room
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{
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room_id
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};
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if(opts.room_id)
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if(room_id < opts.room_id)
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return;
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if(opts.local_joined_only)
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if(!local_joined(room))
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return;
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if(opts.remote_joined_only)
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if(!remote_joined(room))
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return;
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if(opts.local_only)
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if(!local_only(room))
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return;
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if(opts.remote_only)
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if(local_only(room))
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return;
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if(opts.server && !opts.summary)
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if(opts.server != room_id.host())
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return;
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if(opts.join_rule && !opts.summary)
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if(!join_rule(room, opts.join_rule))
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return;
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if(opts.room_alias)
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{
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const auto match_alias_prefix{[&opts](const auto &alias)
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{
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return !startswith(alias, opts.room_alias);
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}};
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if(room::aliases(room).for_each(match_alias_prefix))
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return; // no match
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}
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ret = closure(room);
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}};
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// branch for public rooms of a specific user
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if(opts.user_id)
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{
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const user::rooms user_rooms
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{
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opts.user_id
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};
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return user_rooms.for_each(user::rooms::closure_bool{[&proffer, &ret]
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(const room::id &room_id, const string_view &membership)
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{
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proffer(room_id);
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return ret;
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}});
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}
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// branch for optimized public rooms searches.
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if(opts.summary)
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{
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const room::id::buf public_room_id
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{
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"!public", my_host()
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};
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const room::state state
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{
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public_room_id
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};
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state.for_each("ircd.rooms.summary", [&opts, &proffer, &ret]
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(const string_view &type, const string_view &state_key, const event::idx &event_idx)
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{
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const auto &[room_id, origin]
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{
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rooms::summary::unmake_state_key(state_key)
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};
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if(opts.server && origin != opts.server)
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return true;
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proffer(room_id);
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return ret;
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});
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return ret;
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}
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ctx::dock dock;
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size_t fetch {0}, fetched {0};
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const auto fetcher{[&]
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(const string_view &type, const event::idx &event_idx)
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{
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++fetch;
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fetched += m::get(std::nothrow, event_idx, "room_id", proffer);
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dock.notify_one();
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return ret;
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}};
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size_t prefetch {0}, prefetched {0};
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const auto prefetcher{[&]
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(const string_view &type, const event::idx &event_idx)
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{
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++prefetch;
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prefetched += m::prefetch(event_idx, "room_id");
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dock.wait([&]
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{
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return fetch + opts.prefetch > prefetch;
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});
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return ret;
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}};
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if(!opts.prefetch)
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return events::type::for_each_in("m.room.create", fetcher);
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const ctx::context prefetch_worker
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{
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"m.rooms.prefetch", [&prefetcher]
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{
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events::type::for_each_in("m.room.create", prefetcher);
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}
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};
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return events::type::for_each_in("m.room.create", fetcher);
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}
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//
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// ircd::m::rooms::opts::opts
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//
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ircd::m::rooms::opts::opts(const string_view &input)
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noexcept
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:room_id
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{
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valid(m::id::ROOM, input)?
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m::id::room{input}:
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m::id::room{}
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}
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,server
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{
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startswith(input, ':')?
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lstrip(input, ':'):
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string_view{}
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}
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,room_alias
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{
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valid(m::id::ROOM_ALIAS, input)?
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m::id::room_alias{input}:
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m::id::room_alias{}
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}
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,user_id
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{
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valid(m::id::USER, input)?
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m::id::user{input}:
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m::id::user{}
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}
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,local_only
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{
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has(input, "local_only")
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}
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,remote_only
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{
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has(input, "remote_only")
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}
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,local_joined_only
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{
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has(input, "local_joined_only")
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}
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,remote_joined_only
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{
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has(input, "remote_joined_only")
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}
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,search_term
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{
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!room_id && !server && !room_alias && !user_id
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&& !local_only && !remote_only
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&& !local_joined_only && !remote_joined_only?
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input:
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string_view{}
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}
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{
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}
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