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Non blocking socket send

Hi all,

under heavy load i get a SocketException when calling socket.Send method on
non blocking socket with error code 10035 WSAEWOULDBLOCK.

my question is , how do i know the number of bytes that was successfully
send (though there was an exception) so i will not have to send the whole
buffer again ?


Feb 8 '06 #1
1 3164
Thanks Vadym.
"Vadym Stetsyak" wrote:
Hello, yaron!

y> under heavy load i get a SocketException when calling socket.Send method
y> on non blocking socket with error code 10035 WSAEWOULDBLOCK.

y> my question is , how do i know the number of bytes that was successfully
y> send (though there was an exception) so i will not have to send the
y> whole buffer again ?

There were no bytes sent as this error indicates that whole operation cannot be completed.

This error is returned from operations on nonblocking sockets that cannot be completed immediately, for example recv when no data is queued to be read from the socket. It is a nonfatal error, and the operation should be retried later. It is normal for WSAEWOULDBLOCK to be reported as the result from calling connect on a nonblocking SOCK_STREAM socket, since some time must elapse for the connection to be established.

So, all you have to do is to retry the send operation.

Regards, Vadym Stetsyak
www: http://vadmyst.blogspot

Feb 9 '06 #2

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