sysdeps/pthread/tst-key3.c

   1 /* Copyright (C) 2002-2020 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, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <pthread.h>
  20 #include <stdio.h>
  21 #include <unistd.h>
  22
  23 #define N 2
  24
  25
  26 static int do_test (void);
  27
  28 #define TEST_FUNCTION do_test ()
  29 #include "../test-skeleton.c"
  30
  31 static int cnt0;
  32 static void
  33 f0 (void *p)
  34 {
  35   ++cnt0;
  36 }
  37
  38
  39 static int cnt1;
  40 static void
  41 f1 (void *p)
  42 {
  43   ++cnt1;
  44 }
  45
  46
  47 static void (*fcts[N]) (void *) =
  48 {
  49   f0,
  50   f1
  51 };
  52
  53
  54 static pthread_barrier_t b;
  55
  56
  57 static void *
  58 tf (void *arg)
  59 {
  60   pthread_key_t *key = (pthread_key_t *) arg;
  61
  62   if (pthread_setspecific (*key, (void *) -1l) != 0)
  63     {
  64       write_message ("setspecific failed\n");
  65       _exit (1);
  66     }
  67
  68   pthread_barrier_wait (&b);
  69
  70   const struct timespec t = { .tv_sec = 1000, .tv_nsec = 0 };
  71   while (1)
  72     nanosleep (&t, NULL);
  73
  74   /* NOTREACHED */
  75   return NULL;
  76 }
  77
  78
  79 int
  80 do_test (void)
  81 {
  82   pthread_key_t keys[N];
  83
  84   int i;
  85   for (i = 0; i < N; ++i)
  86     if (pthread_key_create (&keys[i], fcts[i]) != 0)
  87       {
  88         write_message ("key_create failed\n");
  89         _exit (1);
  90       }
  91
  92   if (pthread_barrier_init (&b, NULL, 2) != 0)
  93     {
  94       write_message ("barrier_init failed\n");
  95       _exit (1);
  96     }
  97
  98   pthread_t th;
  99   if (pthread_create (&th, NULL, tf, &keys[1]) != 0)
 100     {
 101       write_message ("create failed\n");
 102       _exit (1);
 103     }
 104
 105   pthread_barrier_wait (&b);
 106
 107   if (pthread_cancel (th) != 0)
 108     {
 109       write_message ("cancel failed\n");
 110       _exit (1);
 111     }
 112
 113   void *status;
 114   if (pthread_join (th, &status) != 0)
 115     {
 116       write_message ("join failed\n");
 117       _exit (1);
 118     }
 119
 120   if (status != PTHREAD_CANCELED)
 121     {
 122       write_message ("thread not canceled\n");
 123       _exit (1);
 124     }
 125
 126   /* Note that the TSD destructors not necessarily have to have
 127      finished by the time pthread_join returns.  At least according to
 128      POSIX.  We implement the stronger requirement that they indeed
 129      have run and therefore these tests succeed.  */
 130   if (cnt0 != 0)
 131     {
 132       write_message ("cnt0 != 0\n");
 133       _exit (1);
 134     }
 135
 136   if (cnt1 != 1)
 137     {
 138       write_message ("cnt1 != 1\n");
 139       _exit (1);
 140     }
 141
 142   for (i = 0; i < N; ++i)
 143     if (pthread_key_delete (keys[i]) != 0)
 144       {
 145         write_message ("key_delete failed\n");
 146         _exit (1);
 147       }
 148
 149   if (pthread_barrier_destroy (&b) != 0)
 150     {
 151       write_message ("barrier_destroy failed\n");
 152       _exit (1);
 153     }
 154
 155   return 0;
 156 }