topic Re: SIGPIPE if socket is full in Operating System - HP-UX

SIGPIPE if socket is full

Johann Fischer — Wed, 20 Oct 2004 01:52:18 GMT

our print application get a SIGPIPE signal after 3 minutes if the socket is full on HP-UX 11.11. The connection is still established and the printer send a TIMED package each 15 seconds but the application hangs in a write system call. After receiving the SIGPIPE signal we suppose the connection was broken. Is there any timer in the tcp system to modify such a behaviour?

Re: SIGPIPE if socket is full

Steve Steel — Wed, 20 Oct 2004 04:02:48 GMT

Hi

Look at ndd

ndd(1M) ndd(1M)

NAME
ndd - network tuning

SYNOPSIS
ndd -get network_device parameter

ndd -set network_device parameter value

ndd -h sup[ported]

ndd -h unsup[ported]

ndd -h [parameter]

ndd -c

DESCRIPTION
The ndd command allows the examination and modification of several
tunable parameters that affect networking operation and behavior.

regards

steve Steel

Re: SIGPIPE if socket is full

Johann Fischer — Wed, 20 Oct 2004 07:16:08 GMT

Hi

the ndd command shows no parameter which is related to a socket timeout. There are some description in /usr/include/sys/socket.h and socketvar.h but I don't know the value.
socket.h:#define SO_SNDTIMEO 0x1005 /* send timeout */

socketvar.h: short so_snd_timeo; /* send timeout (not used yet) */

Re: SIGPIPE if socket is full

Johann Fischer — Tue, 23 Nov 2004 05:13:24 GMT

Problem was outside of HP-UX software