nptl/tst-basic2.c

   1 /* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   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 <stdio.h>
  22 #include <stdint.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25
  26
  27 #define N 20
  28
  29 static pthread_t th[N];
  30 static pthread_mutex_t lock[N];
  31
  32
  33 static void *tf (void *a)
  34 {
  35   uintptr_t idx = (uintptr_t) a;
  36
  37   pthread_mutex_lock (&lock[idx]);
  38
  39   return pthread_equal (pthread_self (), th[idx]) ? NULL : (void *) 1l;
  40 }
  41
  42
  43 int
  44 do_test (void)
  45 {
  46   if (pthread_equal (pthread_self (), pthread_self ()) == 0)
  47     {
  48       puts ("pthread_equal (pthread_self (), pthread_self ()) failed");
  49       exit (1);
  50     }
  51
  52   int i;
  53   for (i = 0; i < N; ++i)
  54     {
  55       if (pthread_mutex_init (&lock[i], NULL) != 0)
  56         {
  57           puts ("mutex_init failed");
  58           exit (1);
  59         }
  60
  61       if (pthread_mutex_lock (&lock[i]) != 0)
  62         {
  63           puts ("mutex_lock failed");
  64           exit (1);
  65         }
  66
  67       if (pthread_create (&th[i], NULL, tf, (void *) (long int) i) != 0)
  68         {
  69           puts ("create failed");
  70           exit (1);
  71         }
  72
  73       if (pthread_mutex_unlock (&lock[i]) != 0)
  74         {
  75           puts ("mutex_unlock failed");
  76           exit (1);
  77         }
  78
  79       printf ("created thread %d\n", i);
  80     }
  81
  82   int result = 0;
  83   for (i = 0; i < N; ++i)
  84     {
  85       void *r;
  86       int e;
  87       if ((e = pthread_join (th[i], &r)) != 0)
  88         {
  89           printf ("join failed: %d\n", e);
  90           _exit (1);
  91         }
  92       else if (r != NULL)
  93         result = 1;
  94     }
  95
  96   return 0;
  97 }
  98
  99
 100 #define TEST_FUNCTION do_test ()
 101 #include "../test-skeleton.c"