nptl/tst-basic3.c

   1 /* Copyright (C) 2003 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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <pthread.h>
  21 #include <signal.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25
  26
  27 static int nrunning = 1;
  28
  29
  30 static void
  31 final_test (void)
  32 {
  33   puts ("final_test has been called");
  34
  35 #define THE_SIGNAL SIGUSR1
  36   kill (getpid (), SIGUSR1);
  37 }
  38
  39
  40 static void *
  41 tf (void *a)
  42 {
  43   if (pthread_join ((pthread_t) a, NULL) != 0)
  44     {
  45       printf ("join failed while %d are running\n", nrunning);
  46       _exit (1);
  47     }
  48
  49   printf ("%2d left\n", --nrunning);
  50
  51   return NULL;
  52 }
  53
  54
  55 int
  56 do_test (void)
  57 {
  58 #define N 20
  59   pthread_t t[N];
  60   pthread_t last = pthread_self ();
  61   int i;
  62
  63   atexit (final_test);
  64
  65   printf ("starting %d + 1 threads\n", N);
  66   for (i = 0; i < N; ++i)
  67     {
  68       if (pthread_create (&t[i], NULL, tf, (void *) last) != 0)
  69         {
  70           puts ("create failed");
  71           _exit (1);
  72         }
  73
  74       ++nrunning;
  75
  76       last = t[i];
  77     }
  78
  79   printf ("%2d left\n", --nrunning);
  80
  81   pthread_exit (NULL);
  82 }
  83
  84
  85 #define EXPECTED_SIGNAL THE_SIGNAL
  86 #define TEST_FUNCTION do_test ()
  87 #include "../test-skeleton.c"