Re: apr and shutdown

Ben Collins wrote:

I'm posting this on prothon-dev.

> On Fri, Jun 18, 2004 at 06:40:01PM -0700, Mark Hahn wrote:
>> Right now when I click on the go-away box in the upper-right of a
>> win32 prothon console window, the Prothon app exits immediately
>> without my shutdown code running.
>>
>> Can you tell me the standard C way to intercept a console shutdown?
>> If there isn't a C standard for this is there an APR function?
>
> Hmm, I would suspect catching signals is what you want. Look at
> apr_signal.h. I think a console kill like that would be SIGTERM or
> SIGINT, or similar.

The constants for signals (APR_HAVE_SIGACTION, APR_HAVE_SIGWAIT, &
APR_HAVE_SIGSUSPEND) are disabled in my APR.

This code is documented in my visual studio and I put it in my code but it
seems to do nothing.  sig_handler is never called.

void sig_handler(int signum) {
    switch (signum) {
        case SIGTERM:
            signum = 0; // for breakpoint
    }
}

signal(SIGTERM, sig_handler);
signal(SIGABRT, sig_handler);
signal(SIGFPE, sig_handler);
signal(SIGILL, sig_handler);
signal(SIGINT, sig_handler);
signal(SIGSEGV, sig_handler);
signal(SIGTERM, sig_handler);