ciabatta/code/signal.c

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2022-06-07 06:02:23 +00:00
#include <_os.h>
#include <signal.h>
void _signal_default_handler(int sig)
{
}
void _signal_ignore_handler(int sig)
{
// ignore :kekw:
}
static void (*(handlers[]))(int) = {
[SIGINT] = _signal_ignore_handler,
[SIGILL] = _signal_ignore_handler,
[SIGFPE] = _signal_ignore_handler,
[SIGSEGV] = _signal_ignore_handler,
[SIGTERM] = _signal_ignore_handler,
[SIGABRT] = _signal_ignore_handler,
[SIGBREAK] = _signal_ignore_handler,
[SIGALIGN] = _signal_ignore_handler,
[SIGSTEP] = _signal_ignore_handler,
};
void (*signal(int sig, void (*func)(int)))(int)
{
if(_SIG_MIN <= sig && sig <= _SIG_MAX) {
handlers[sig] = func;
return func;
}
return SIG_ERR;
}
int raise(int sig)
{
if(_SIG_MIN <= sig && sig <= _SIG_MAX) {
handlers[sig](sig);
if(sig == SIGFPE || sig == SIGILL || sig == SIGSEGV) {
_os_exit(-69420);
}
return 1;
}
return 0;
}