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  • owl.c

    rb8a3e00 ra7fac14  
    389389}
    390390
    391 #define CHECK_RESULT(s, syscall) \
     391#define OR_DIE(s, syscall)      \
    392392  G_STMT_START {                 \
    393     if ((syscall) != 0) {        \
     393    if ((syscall) == -1) {       \
    394394      perror((s));               \
    395395      exit(1);                   \
     
    402402  sigset_t sigset;
    403403  int ret, i;
    404   const int signals[] = { SIGABRT, SIGBUS, SIGCHLD, SIGFPE, SIGHUP, SIGILL,
    405                           SIGINT, SIGQUIT, SIGSEGV, SIGTERM, SIGWINCH };
     404  const int reset_signals[] = { SIGABRT, SIGBUS, SIGCHLD, SIGFPE, SIGILL,
     405                                SIGQUIT, SIGSEGV, };
     406  /* Don't bother resetting watched ones because owl_signal_init will. */
     407  const int watch_signals[] = { SIGWINCH, SIGTERM, SIGHUP, SIGINT, };
    406408
    407409  /* Sanitize our signals; the mask and dispositions from our parent
    408410   * aren't really useful. Signal list taken from equivalent code in
    409411   * Chromium. */
    410   CHECK_RESULT("sigemptyset", sigemptyset(&sigset));
     412  OR_DIE("sigemptyset", sigemptyset(&sigset));
    411413  if ((ret = pthread_sigmask(SIG_SETMASK, &sigset, NULL)) != 0) {
    412414    errno = ret;
    413415    perror("pthread_sigmask");
    414   }
    415   for (i = 0; i < G_N_ELEMENTS(signals); i++) {
    416     CHECK_RESULT("sigaction", sigaction(signals[i], &sig_default, NULL));
     416    exit(1);
     417  }
     418  for (i = 0; i < G_N_ELEMENTS(reset_signals); i++) {
     419    OR_DIE("sigaction", sigaction(reset_signals[i], &sig_default, NULL));
    417420  }
    418421
    419422  /* Turn off SIGPIPE; we check the return value of write. */
    420   CHECK_RESULT("sigaction", sigaction(SIGPIPE, &sig_ignore, NULL));
     423  OR_DIE("sigaction", sigaction(SIGPIPE, &sig_ignore, NULL));
    421424
    422425  /* Register some signals with the signal thread. */
    423   CHECK_RESULT("sigaddset", sigaddset(&sigset, SIGWINCH));
    424   CHECK_RESULT("sigaddset", sigaddset(&sigset, SIGTERM));
    425   CHECK_RESULT("sigaddset", sigaddset(&sigset, SIGHUP));
    426   CHECK_RESULT("sigaddset", sigaddset(&sigset, SIGINT));
    427   owl_signal_init(&sigset, sig_handler, NULL);
     426  owl_signal_init(watch_signals, G_N_ELEMENTS(watch_signals),
     427                  sig_handler, NULL);
    428428}
    429429
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