nptl/tst-signal5.c

   1 /* Copyright (C) 2003-2020 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <pthread.h>
  21 #include <signal.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <unistd.h>
  26 #include <sys/mman.h>
  27 #include <sys/wait.h>
  28
  29
  30 static sigset_t ss;
  31
  32
  33 static void *
  34 tf (void *arg)
  35 {
  36   sigset_t ss2;
  37   if (pthread_sigmask (SIG_SETMASK, NULL, &ss2) != 0)
  38     {
  39       puts ("child: sigmask failed");
  40       exit (1);
  41     }
  42
  43   int i;
  44   for (i = 1; i < 32; ++i)
  45     if (sigismember (&ss, i) && ! sigismember (&ss2, i))
  46       {
  47         printf ("signal %d set in parent mask, but not in child\n", i);
  48         exit (1);
  49       }
  50     else if (! sigismember (&ss, i) && sigismember (&ss2, i))
  51       {
  52         printf ("signal %d set in child mask, but not in parent\n", i);
  53         exit (1);
  54       }
  55
  56   return NULL;
  57 }
  58
  59
  60 static int
  61 do_test (void)
  62 {
  63   sigemptyset (&ss);
  64   sigaddset (&ss, SIGUSR1);
  65   if (pthread_sigmask (SIG_SETMASK, &ss, NULL) != 0)
  66     {
  67       puts ("1st sigmask failed");
  68       exit (1);
  69     }
  70
  71   pthread_t th;
  72   if (pthread_create (&th, NULL, tf, NULL) != 0)
  73     {
  74       puts ("1st create failed");
  75       exit (1);
  76     }
  77
  78   void *r;
  79   if (pthread_join (th, &r) != 0)
  80     {
  81       puts ("1st join failed");
  82       exit (1);
  83     }
  84
  85   sigemptyset (&ss);
  86   sigaddset (&ss, SIGUSR2);
  87   sigaddset (&ss, SIGFPE);
  88   if (pthread_sigmask (SIG_SETMASK, &ss, NULL) != 0)
  89     {
  90       puts ("2nd sigmask failed");
  91       exit (1);
  92     }
  93
  94   if (pthread_create (&th, NULL, tf, NULL) != 0)
  95     {
  96       puts ("2nd create failed");
  97       exit (1);
  98     }
  99
 100   if (pthread_join (th, &r) != 0)
 101     {
 102       puts ("2nd join failed");
 103       exit (1);
 104     }
 105
 106   return 0;
 107 }
 108
 109 #define TEST_FUNCTION do_test ()
 110 #include "../test-skeleton.c"