When Perl is embedded with another application, like Apache and mod_perl, can I catch a signal in Perl and then still run the initail signal handler Apache set?
On a "graceful stop" the Apache parent process sends a USR1 signal to its children when it wants them to shut down. The handler sets flags telling the process to finish. In mod_perl I'd also like to catch this signal. I can indeed setup a signal handler in Perl and catch the signal, but then the Apache handler is not run -- which is what I'd expect. I tried looking at the third parameter to POSIX::sigaction, but Perl just returns "DEFAULT" for the previous handler. I also tried setting SA_RESETHAND with the remote hope that it would reset back to the apache handler and I'd just "re-throw" the signal via kill. No luck there. Is it possible in XS to capture the original handler and then either call it directly on the signal or re-instate the Apache handler and call "kill $sig $$"? And if so, can you point me to an XS example (or perhaps a better approach)? My goal is to alter a response from Apache when a graceful stop has been requested. Thanks, -- Bill Moseley mose...@hank.org
