<Oliver.Kowalke@infineon.com> writes:
Hi Jeremy, Unfortunately this flag doesn't seem to be available on Solaris, which does raise SIGPIPE too. It also doesn't work with writev.
I use this code:
... sig::action sa; sa.set_handler( SIG_IGN); sig::action old_sa( sa.run( SIGPIPE) ); boost::shared_ptr< void > guard( static_cast< void * >( 0), boost::bind( & sig::action::run, old_sa, SIGPIPE) );
::write(...)
...
sig:action abstracts struct sigaction, clib function ::sigaction and so on.
After sa.run( SIGPIPE) the signal is ignored and write would return EPIPE. The shared_ptr resets the original signal handler after getting out of scope.
As I mentioned in another message, at least on Linux, sendmsg can be used as replacement for writev that allows specification of MSG_NOSIGNAL. Your code might potentially be useful on Solaris and other platforms that do not support disabling the signal through mechanism like MSG_NOSIGNAL, although your code seems to introduce quite a lot of overhead per write call. -- Jeremy Maitin-Shepard