From e60635aa94b327010fdd22ce32b162b420cfc4f4 Mon Sep 17 00:00:00 2001 From: Waqas Hussain Date: Thu, 4 Jun 2009 19:55:56 +0500 Subject: util.uuid: Added function seed(string) to allow further seeding of the PRNG --- util/uuid.lua | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'util') diff --git a/util/uuid.lua b/util/uuid.lua index a6dc0a1e..eca35134 100644 --- a/util/uuid.lua +++ b/util/uuid.lua @@ -28,10 +28,11 @@ local function new_random(x) end local buffer = new_random(uniq_time()); +local function _seed(x) + buffer = new_random(buffer..x); +end local function get_nibbles(n) - if #buffer < n then - buffer = new_random(buffer..uniq_time()); - end + if #buffer < n then seed(uniq_time()); end local r = buffer:sub(0, n); buffer = buffer:sub(n+1); return r; @@ -44,5 +45,6 @@ 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 +seed = _seed; return _M; -- cgit v1.2.3