Is there a race condition using socket.select on Win32 ?
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- Subject: Is there a race condition using socket.select on Win32 ?
- From: Ralph Hempel <rhempel@...>
- Date: 2006年6月05日 10:05:57 -0400
I'm working my way through writing an application using
the luaSocket library.
I'm using Lua 5.1 and luaSocket 2.0.1, and have compiled
and linked under MinGW - and so far things are working, but
I'm reviewing the code for possible race conditions.
My question has to do with potential race conditions in
the example on page 78 of the original PiL.
The idea of using socket.select() to wait until something
interesting happens makes sense, but what happens if the
socket became readable BETWEEN the original timeout and
when socket.select() is called?
To make things more interesting, what if the socket never
gets another character once socket.select() is called?
Does socket.select() essentially block forever in this case?
I must add that it's surprising just how much functionality
you can build in just a few lines of Lua!
Cheers, Ralph