send() error..

Hello peccavi,

The EAGAIN you should be able to resend, It meeans Allocation of interl data struct fail but request may be attempted agian. (man poll)
The EBADF I think something happen to your opened file descritor(ie socket) and I don't think you would be able to resend.

Hope that helps some.

Also even if send return -1 doesn't mean message didn't go through.

Lord Bart :)

thank you so much!!
very helpful to me..

but when errno was EAGAIN, my codes are...

do
{
ret = send(...);
if( ret == -1 )
{
if( errno == 9 ) break;
else if( errno == 11 ) continue;
}
}

it runs again and again when errno is 11(EAGAIN)..

how can i modify that code?

T T

Is the other end receiving at all? You could probably get EAGAIN if the buffer is full and the other end isn't draining it.

And, no, there isn't really a great way of re-writing that code (except by using the symbolic names rather than integer values). If you don't like the CPU usage, then use select() to figure out when your socket is writable without wasting CPU.