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prosody
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util/uuid.lua @ 9916:72501e3c1427
net.server_select: Fix write pause/resume functions
Nothing would happen if the write buffer was empty.
Also simplified the code because it took too long to understand what
`if _sendlistlen ~= tmp then` did.
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 24 Mar 2019 20:12:22 +0100 |
parent | 7078:ec17115e3721 |
child | 12355:a0ff5c438e9d |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local random = require "util.random"; local random_bytes = random.bytes; local hex = require "util.hex".to; local m_ceil = math.ceil; local function get_nibbles(n) return hex(random_bytes(m_ceil(n/2))):sub(1, n); end local function get_twobits() return ("%x"):format(random_bytes(1):byte() % 4 + 8); end local function generate() -- generate RFC 4122 complaint UUIDs (version 4 - random) return get_nibbles(8).."-"..get_nibbles(4).."-4"..get_nibbles(3).."-"..(get_twobits())..get_nibbles(3).."-"..get_nibbles(12); end return { get_nibbles=get_nibbles; generate = generate ; -- COMPAT seed = random.seed; };