Providing/passing argument to signal handler

user_358892 0
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Can I provide/pass any arguments to signal handler?

/* Signal handling */
struct sigaction act;
act.sa_handler = signal_handler;
/* some more settings */

Now, handler looks like this:

void signal_handler(int signo) {
    /* some code */
}

If I want to do something special i.e. delete temp files, can I provide those files as an argument to this handler?

Edit 0: Thanks for the answers. We generally avoid/discourage use of global variables. And in this case, If you have a huge program, things can go wrong at different places and you might need to do a lot of cleanup. Why was the API designed this way?

signal-handling signals c
7 Answers

I think you it's better to use SA_SIGINFO in sa_flags so the handler will get void signal_handler(int sig, siginfo_t *info, void *secret) in siginfo_t you can provide your params. Ty:HAPPY code

user_70264160
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