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glibc  2.9
tst-tsd4.c
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00001 /* Copyright (C) 2003 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <limits.h>
00021 #include <pthread.h>
00022 #include <stdio.h>
00023 #include <stdlib.h>
00024 #include <unistd.h>
00025 
00026 
00027 static pthread_key_t key;
00028 
00029 
00030 static int rounds;
00031 
00032 
00033 static void
00034 destr (void *arg)
00035 {
00036   ++rounds;
00037 
00038   if (pthread_setspecific (key, (void *) 1l) != 0)
00039     {
00040       puts ("destr: setspecific failed");
00041       exit (1);
00042     }
00043 }
00044 
00045 
00046 static void *
00047 tf (void *arg)
00048 {
00049   if (pthread_setspecific (key, (void *) 1l) != 0)
00050     {
00051       puts ("tf: setspecific failed");
00052       exit (1);
00053     }
00054 
00055   return NULL;
00056 }
00057 
00058 
00059 /* This test check non-standard behavior.  The standard does not
00060    require that the implementation has to stop calling TSD destructors
00061    when they are set over and over again.  But NPTL does.  */
00062 static int
00063 do_test (void)
00064 {
00065   /* Allocate two keys, both with destructors.  */
00066   if (pthread_key_create (&key, destr) != 0)
00067     {
00068       puts ("key_create failed");
00069       return 1;
00070     }
00071 
00072   pthread_t th;
00073   if (pthread_create (&th, NULL, tf, NULL) != 0)
00074     {
00075       puts ("create failed");
00076       return 1;
00077     }
00078 
00079   if (pthread_join (th, NULL) != 0)
00080     {
00081       puts ("join failed");
00082       return 1;
00083     }
00084 
00085   if (rounds < PTHREAD_DESTRUCTOR_ITERATIONS)
00086     {
00087       printf ("rounds == %d, PTHREAD_DESTRUCTOR_ITERATIONS = %d\n",
00088              rounds, PTHREAD_DESTRUCTOR_ITERATIONS);
00089       return 1;
00090     }
00091 
00092   if (pthread_getspecific (key) != NULL)
00093     {
00094       puts ("key data != NULL");
00095       return 1;
00096     }
00097 
00098   return 0;
00099 }
00100 
00101 
00102 #define TEST_FUNCTION do_test ()
00103 #include "../test-skeleton.c"