Messages in this thread | | | From | (Alan Cox) | Subject | Re: how to tell if data is available for a file descriptor | Date | Sat, 13 Sep 1997 15:57:11 +0100 (BST) |
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> However, I noticed what looks like an error in my manpage over here. > > timeout is an upper bound on the amount of time elapsed > before select returns. It may be zero, causing select to > return immediately. If timeout is NULL (no timeout), > select can block indefinitely.
No its an error in your reading of it. timeout is a struct pointer. NULL means nothing, a timeval of {0,0} means don't wait
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