File

plugins/muc/description.lib.lua @ 13186:affaf6d08d26

util.datamanager: Pad list writes to avoid crossing block boundaries By padding items so that they do not cross block boundaries, it becomes eaiser to delete whole blocks with fallocate() without cutting items in half, improving efficiency of such operations. Since list stores are used for message archives, where the most common deletion operation would be of the oldest entires, at the top of the file. With this, all blocks that contain items to be removed could be deleted without needing to read, delete and write out the whole file.
author Kim Alvefur <zash@zash.se>
date Wed, 07 Jun 2023 00:39:30 +0200
parent 9034:1c709e3d2e5e
line wrap: on
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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
-- Copyright (C) 2014 Daurnimator
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local function get_description(room)
	return room._data.description;
end

local function set_description(room, description)
	if description == "" then description = nil; end
	if get_description(room) == description then return false; end
	room._data.description = description;
	return true;
end

local function add_disco_form(event)
	table.insert(event.form, {
		name = "muc#roominfo_description";
		label = "Description";
		value = "";
	});
	event.formdata["muc#roominfo_description"] = get_description(event.room);
end

local function add_form_option(event)
	table.insert(event.form, {
		name = "muc#roomconfig_roomdesc";
		type = "text-single";
		label = "Description";
		desc = "A brief description of the room";
		value = get_description(event.room) or "";
	});
end

module:hook("muc-disco#info", add_disco_form);
module:hook("muc-config-form", add_form_option, 100-2);

module:hook("muc-config-submitted/muc#roomconfig_roomdesc", function(event)
	if set_description(event.room, event.value) then
		event.status_codes["104"] = true;
	end
end);

return {
	get = get_description;
	set = set_description;
};