From ea0b889995f5673404d296103a0c3d154f405b0e Mon Sep 17 00:00:00 2001
From: skywind3000 <skywind3000@163.com>
Date: Mon, 2 Apr 2018 23:05:36 +0800
Subject: [PATCH] commit new z.lua

---
 z.lua | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/z.lua b/z.lua
index f72d780..80168d7 100644
--- a/z.lua
+++ b/z.lua
@@ -429,13 +429,18 @@ end
 -- initialize random seed
 -----------------------------------------------------------------------
 function math.random_init()
-	-- init random seed
+	-- random seed from os.time()
 	local seed = tostring(os.time()):reverse()
 	for _, key in ipairs(os.argv) do
 		seed = seed .. '/' .. key
 	end
 	local ppid = os.getenv('PPID')
 	seed = (ppid ~= nil) and (seed .. '/' .. ppid) or seed
+	-- random seed from socket.gettime()
+	local status, socket = pcall(require, 'socket')
+	if status then
+		seed = seed .. tostring(socket.gettime())
+	end
 	local number = 0
 	for i = 1, seed:len() do
 		local k = string.byte(seed:sub(i, i))