[zeromq-dev] [patch] handle SIGPIPE

Martin Lucina mato at kotelna.sk
Wed Jul 7 09:03:49 CEST 2010

On 7/7/2010, "Steven McCoy" <steven.mccoy at miru.hk> wrote:

>On 7 July 2010 11:29, Dhammika Pathirana <dhammika at gmail.com> wrote:
>> How does 0MQ ignore signals? I don't see a signal handler or SIG_IGN flag.
>> Default SIGPIPE behavior is to terminate the process.ore
>It ignores them by not handling them at all.  The application developer
>needs to manage them.
>At a guess.

I don't have the code handy right now, look for the call to
pthread_sigmask(). The signal mask is cleared for all 0MQ I/O threads,
so they will not get any signals (excepting SIGSEGV, etc.)

Hence the SIGPIPE issue should be moot, unless on some broken OS a
SIGPIPE correctly ignored by a 0MQ I/O thread is getting sent to an
application thread instead, which is why I asked to see a practical case
of something breaking.


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