Very Computer

Hi all,

On Solaris 2.5, I use socket to write a server and a client. (At present
the server simply just echo all the data sent by the client back to the
client.

When the client send a message, I want to know whether it is successful -
I setup signal handler for SIGPIPE.  The problem is, if the server goes
down (say kill -9), the client did not get SIGPIPE on next send but gets
it on the send after the next.  e.g.:

client

--
Actrix Networks Limited                  Internet Service Providers.

 Chuck> When the client send a message, I want to know whether it is
 Chuck> successful - I setup signal handler for SIGPIPE.  The problem
 Chuck> is, if the server goes down (say kill -9), the client did not
 Chuck> get SIGPIPE on next send but gets it on the send after the
 Chuck> next.  e.g.:

That's unavoidable.

database, (Subject: TCP problem), for an explanation.

In any case, the success of a write() call is never an indication of
successful receipt by the other process; however, TCP does guarantee
that data written will either be delivered, or the connection aborted.
It's up to you to work out what to do in the latter case.

--
Andrew.

comp.unix.programmer FAQ: see <URL: http://www.erlenstar.demon.co.uk/unix/>