It was thus said that the Great Steve Swift once stated:
> >But apache won't (can't!) kill the process that's looping...
>
> The operating system is Linux. The separate threads are spawned as "apache"
> (in our case) but there is still the root process running httpd - that
> should have no problems killing of looping CGI processes, if it wanted to.
>
> However, I'll accept that "It cannot be done" and continue monitoring for
> looping apache processes.
>
> If I get motivated I could probably write a cron task to inspect the
> /server-status webpage every two minutes and to kill off any thread that
> seems to be hogging the system.
You could always include the login in the CGI script itself. Admittedly
it's a hack, but it would work. For example, in C (which I know too well
and for a quick example, I'm not going to look up how to do this in Perl or
PHP but I can't see it being much different):
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
static void timeout_handler(int sig)
{
exit(EXIT_FAILURE);
}
int main(int argc, char *argv[])
{
/* ... */
signal(SIGALRM,timeout_handler);
alarm(30);
/* ... */
}
alarm() will set a signal (SIGALRM) to trigger in X seconds (in this case,
30). We set the signal handler for SIGALRM to just terminate the program.
-spc (And this would probably be easier than writing another program that
runs looking for programs to kill ... )
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