1  /* C11 threads specific storage tests.
       2     Copyright (C) 2018-2023 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, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <threads.h>
      20  #include <stdio.h>
      21  #include <unistd.h>
      22  
      23  #include <support/check.h>
      24  
      25  /* Thread specific storage.  */
      26  static tss_t key;
      27  
      28  #define TSS_VALUE (void*) 0xFF
      29  
      30  static int
      31  tss_thrd (void *arg)
      32  {
      33    if (tss_create (&key, NULL) != thrd_success)
      34      FAIL_EXIT1 ("tss_create failed");
      35  
      36    if (tss_set (key, TSS_VALUE) != thrd_success)
      37      FAIL_EXIT1 ("tss_set failed");
      38  
      39    void *value = tss_get (key);
      40    if (value == 0)
      41      FAIL_EXIT1 ("tss_get failed");
      42    if (value != TSS_VALUE)
      43      FAIL_EXIT1 ("tss_get returned %p, expected %p", value, TSS_VALUE);
      44  
      45    thrd_exit (thrd_success);
      46  }
      47  
      48  static int
      49  do_test (void)
      50  {
      51    /* Setting an invalid key should return an error.  */
      52    if (tss_set (key, TSS_VALUE) == thrd_success)
      53      FAIL_EXIT1 ("tss_set succeed where it should have failed");
      54  
      55    if (tss_create (&key, NULL) != thrd_success)
      56      FAIL_EXIT1 ("tss_create failed");
      57  
      58    thrd_t id;
      59    if (thrd_create (&id, tss_thrd, NULL) != thrd_success)
      60      FAIL_EXIT1 ("thrd_create failed");
      61  
      62    if (thrd_join (id, NULL) != thrd_success)
      63      FAIL_EXIT1 ("thrd failed");
      64  
      65    /* The value set in tss_thrd should not be visible here.  */
      66    void *value = tss_get (key);
      67    if (value != 0)
      68      FAIL_EXIT1 ("tss_get succeed where it should have failed");
      69  
      70    tss_delete (key);
      71  
      72    return 0;
      73  }
      74  
      75  #include <support/test-driver.c>