/* Test that the key reuse inside libpthread does not cause thread specific values to persist. Copyright (C) 2000-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, see . */ #define _GNU_SOURCE 1 #include #include #include #include void work (int iter) { error_t err; pthread_key_t key1; pthread_key_t key2; void *value1; void *value2; printf ("work/%d: start\n", iter); err = pthread_key_create (&key1, NULL); assert (err == 0); err = pthread_key_create (&key2, NULL); assert (err == 0); value1 = pthread_getspecific (key1); value2 = pthread_getspecific (key2); printf ("work/%d: pre-setspecific: %p,%p\n", iter, value1, value2); assert (value1 == NULL); assert (value2 == NULL); err = pthread_setspecific (key1, (void *) (0x100 + iter)); assert (err == 0); err = pthread_setspecific (key2, (void *) (0x200 + iter)); assert (err == 0); value1 = pthread_getspecific (key1); value2 = pthread_getspecific (key2); printf ("work/%d: post-setspecific: %p,%p\n", iter, value1, value2); assert (value1 == (void *) (0x100 + iter)); assert (value2 == (void *) (0x200 + iter)); err = pthread_key_delete (key1); assert (err == 0); err = pthread_key_delete (key2); assert (err == 0); } int main (int argc, char *argv[]) { int i; for (i = 0; i < 8; ++i) work (i + 1); return 0; }