Re: [5.1.4] Most portable solution to "sleep"?
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- Subject: Re: [5.1.4] Most portable solution to "sleep"?
- From: "Dimiter \"malkia\" Stanev" <malkia@...>
- Date: 2011年2月18日 22:28:06 -0800
This is from Mike Pall's ext_ffi_tutorial.html (latest in git)
It's using LuaJIT's FFI, but one can do it the lua binding way if needed.
local ffi = require("ffi")
ffi.cdef[[
void Sleep(int ms);
int poll(struct pollfd *fds, unsigned long nfds, int timeout);
]]
local sleep
if ffi.os == "Windows" then
function sleep(s)
ffi.C.Sleep(s*1000)
end
else
function sleep(s)
ffi.C.poll(nil, 0, s*1000)
end
end
for i=1,160 do
io.write("."); io.flush()
sleep(0.01)
end
io.write("\n")
On 2/18/11 4:55 AM, Gilles Ganault wrote:
Hello,
Now that I could create the text file, I need to have the script
pause for a few seconds before resuming.
I checked the archives for this list:
===========
"NEWBIE Question: LUA wait() function?"
http://thread.gmane.org/gmane.comp.lang.lua.general/46268/focus=46287
"SLEEP"
http://thread.gmane.org/gmane.comp.lang.lua.general/69686/focus=69693
===========
Since I cross-compile Lua on Ubuntu and run it on a uClinux appliance,
I need a portable, compact solution to pause a script.
Which solution would you recommend? Compiling Lua with a POSIX
library, such as luaposix? Using "socket.sleep(0.2)"? Other?
I was thinking of using those options in CFLAGS:
-DLUA_USE_POSIX -DLUA_USE_LINUX
Thank you.