Re: sleep
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- Subject: Re: sleep
- From: Marco Antonio Abreu <mabreu.ti@...>
- Date: 2009年5月21日 10:38:32 -0300
Hi. I were using something like this, os.time() instead o os.clock(), but it uses much CPU to do nothing. In a case like mine, where the server is so hard used by many process, it could be very bad for global performance.
tks
[],
Marco
On Wed, May 20, 2009 at 11:58 PM, RJP Computing
<rjpcomputing@gmail.com> wrote:
On Wed, May 20, 2009 at 4:33 PM, Marco Antonio Abreu
<mabreu.ti@gmail.com> wrote:
Hi Guys,
I am writting a script to copy some data from one database to another, this script will be running all the time, verifying if have something to copy.
I need to wait for some seconds between two checks, to do not overload the DB server or CPU.
How can I implement a function (or use if already has) to perform a "sleep", to wait some (milli)seconds doing nothing.
This is a Lua version and yes I know it is not a true Sleep because it uses CPU, but here you go:
function Delay( seconds )
local start = os.clock()
while os.clock() - start < seconds do end
end
Delay( .500 )
Regards,
Ryan