src/test/test-signal-util.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2016 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include "signal-util.h"
  21
  22 static void test_block_signals(void) {
  23         sigset_t ss;
  24
  25         assert_se(sigprocmask(0, NULL, &ss) >= 0);
  26
  27         assert_se(sigismember(&ss, SIGUSR1) == 0);
  28         assert_se(sigismember(&ss, SIGALRM) == 0);
  29         assert_se(sigismember(&ss, SIGVTALRM) == 0);
  30
  31         {
  32                 BLOCK_SIGNALS(SIGUSR1, SIGVTALRM);
  33
  34                 assert_se(sigprocmask(0, NULL, &ss) >= 0);
  35                 assert_se(sigismember(&ss, SIGUSR1) == 1);
  36                 assert_se(sigismember(&ss, SIGALRM) == 0);
  37                 assert_se(sigismember(&ss, SIGVTALRM) == 1);
  38
  39         }
  40
  41         assert_se(sigprocmask(0, NULL, &ss) >= 0);
  42         assert_se(sigismember(&ss, SIGUSR1) == 0);
  43         assert_se(sigismember(&ss, SIGALRM) == 0);
  44         assert_se(sigismember(&ss, SIGVTALRM) == 0);
  45 }
  46
  47 int main(int argc, char *argv[]) {
  48         test_block_signals();
  49 }