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signal.c
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signal.c
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#include "conf.h"
#include <stdlib.h>
#include <signal.h>
#include <sys/wait.h>
#if (USE_THPOOL)
#include <C-Thread-Pool/thpool.h>
#endif
extern threadpool srvthpooltab[];
extern volatile long nsrvproc;
#if (USE_THPOOL)
void
sigdelthpool(void)
{
long ndx;
for (ndx = 0 ; ndx < NSERVERPROC ; ndx++) {
thpool_destroy(srvthpooltab[ndx]);
}
return;
}
#endif
void
sigreap(int sig)
{
int waitret;
nsrvproc--;
wait(&waitret);
return;
}
void
sigcrash(int sig)
{
#if (SRVNODUMP)
exit(sig);
#else
abort();
#endif
}
void
sigdie(int sig)
{
#if (USE_THPOOL)
sigdelthpool();
#endif
exit(sig);
}
void
srvinitsignals(void)
{
signal(SIGCHLD, sigreap);
signal(SIGSEGV, sigcrash);
signal(SIGILL, sigcrash);
signal(SIGABRT, sigcrash);
signal(SIGINT, SIG_IGN);
signal(SIGTERM, sigdie);
signal(SIGQUIT, sigdie);
#if defined(SIGTSTP)
/* ignore job-control signals */
signal(SIGTSTP, SIG_IGN);
signal(SIGTTIN, SIG_IGN);
signal(SIGTTOU, SIG_IGN);
#endif
return;
}