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#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include "picosat.h"
int picosat_main (PicoSAT **, int, char **);
static PicoSAT * ps;
static int catched;
static void (*sig_int_handler);
static void (*sig_segv_handler);
static void (*sig_abrt_handler);
static void (*sig_term_handler);
#ifndef NALLSIGNALS
static void (*sig_kill_handler);
static void (*sig_xcpu_handler);
static void (*sig_xfsz_handler);
#endif
static void
resetsighandlers (void)
{
(void) signal (SIGINT, sig_int_handler);
(void) signal (SIGSEGV, sig_segv_handler);
(void) signal (SIGABRT, sig_abrt_handler);
(void) signal (SIGTERM, sig_term_handler);
#ifndef NALLSIGNALS
(void) signal (SIGKILL, sig_kill_handler);
(void) signal (SIGXCPU, sig_xcpu_handler);
(void) signal (SIGXFSZ, sig_xfsz_handler);
#endif
}
static void
message (int sig)
{
picosat_message (ps, 1, "");
picosat_message (ps, 1, "*** CAUGHT SIGNAL %d ***", sig);
picosat_message (ps, 1, "");
}
static void
catch (int sig)
{
if (!catched)
{
message (sig);
catched = 1;
picosat_stats (ps);
message (sig);
}
resetsighandlers ();
raise (sig);
}
static void
setsighandlers (void)
{
sig_int_handler = signal (SIGINT, catch);
sig_segv_handler = signal (SIGSEGV, catch);
sig_abrt_handler = signal (SIGABRT, catch);
sig_term_handler = signal (SIGTERM, catch);
#ifndef NALLSIGNALS
sig_kill_handler = signal (SIGKILL, catch);
sig_xcpu_handler = signal (SIGXCPU, catch);
sig_xfsz_handler = signal (SIGXFSZ, catch);
#endif
}
int
main (int argc, char **argv)
{
int res, verbose;
for (verbose = argc - 1; verbose; verbose--)
if (!strcmp (argv[verbose], "-v"))
break;
if (verbose)
setsighandlers ();
res = picosat_main (&ps, argc, argv);
if (verbose)
resetsighandlers ();
return res;
}
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