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Re: MSG_DONTWAIT on recvfrom


Corinna Vinschen wrote:
On Mar 9 10:02, T. Horsnell wrote:
I'm trying to use recvfrom in non-blocking mode with the MSG_DONTWAIT flag,
and I get an undefined name for MSG_DONTWAIT at compile time.
A trawl through the mail archives gave a reference to this in 2001
which said:

"Download the source for cygwin1.dll and implement MSG_DONTWAIT"

Is this still the case (I have a recent cygwin with cygwin1.dll 1.5.25)
or is there a more straightforward fix?

MSG_DONTWAIT isn't supported by Winsock and it's not supported by Cygwin either. I put this on my TODO list for a later release but keep in mind that MSG_DONTWAIT is a non-standard socket extension not backed by POSIX. Consider to use O_NONBLOCK with the F_SETFL fcntl command instead.


Corinna



Righto. Thank you very much. Terry

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