Software /
code /
prosody
File
plugins/muc/language.lib.lua @ 10973:39991e40d1dc
util.dbuffer: dynamic string buffer
Similar to util.ringbuffer (and shares almost identical API). Differences:
- size limit is optional and dynamic
- does not allocate a fixed buffer of max_size bytes
- focus on simply storing references to existing string objects where possible,
avoiding unnecessary allocations
- references are still stored in a ring buffer to enable use as a fast FIFO
Optional second parameter to new() provides the number of ring buffer segments. On
Lua 5.2 on my laptop, a segment is ~19 bytes. If the ring buffer fills up, the next
write will compact all strings into a single item.
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Fri, 26 Jun 2020 16:41:31 +0100 |
parent | 10063:13ccc2f05007 |
line wrap: on
line source
-- 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_language(room) return room._data.language; end local function set_language(room, language) if language == "" then language = nil; end if get_language(room) == language then return false; end room._data.language = language; return true; end local function add_disco_form(event) table.insert(event.form, { name = "muc#roominfo_lang"; value = ""; }); event.formdata["muc#roominfo_lang"] = get_language(event.room); end local function add_form_option(event) table.insert(event.form, { name = "muc#roomconfig_lang"; label = "Language tag for room (e.g. 'en', 'de', 'fr' etc.)"; type = "text-single"; desc = "Indicate the primary language spoken in this room"; datatype = "xs:language"; value = get_language(event.room) or ""; }); end module:hook("muc-disco#info", add_disco_form); module:hook("muc-config-form", add_form_option, 100-3); module:hook("muc-config-submitted/muc#roomconfig_lang", function(event) if set_language(event.room, event.value) then event.status_codes["104"] = true; end end); return { get = get_language; set = set_language; };