nptl/tst-fork4.c

   1 /* Test of fork updating child universe's pthread structures.
   2    Copyright (C) 2003 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <errno.h>
  21 #include <pthread.h>
  22 #include <stdio.h>
  23 #include <unistd.h>
  24 #include <sys/types.h>
  25 #include <sys/wait.h>
  26 #include <string.h>
  27
  28
  29 static int
  30 do_test (void)
  31 {
  32   pthread_t me = pthread_self ();
  33
  34   pid_t pid = fork ();
  35
  36   if (pid < 0)
  37     {
  38       printf ("fork: %m\n");
  39       return 1;
  40     }
  41
  42   if (pid == 0)
  43     {
  44       int err = pthread_kill (me, SIGTERM);
  45       printf ("pthread_kill returned: %s\n", strerror (err));
  46       return 3;
  47     }
  48
  49   int status;
  50   errno = 0;
  51   if (wait (&status) != pid)
  52     printf ("wait failed: %m\n");
  53   else if (WIFSIGNALED (status) && WTERMSIG (status) == SIGTERM)
  54     {
  55       printf ("child correctly died with SIGTERM\n");
  56       return 0;
  57     }
  58   else
  59     printf ("child died with bad status %#x\n", status);
  60
  61   return 1;
  62 }
  63
  64 #define TEST_FUNCTION do_test ()
  65 #include "../test-skeleton.c"