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* Test Thread Specific Data (TSD) key creation and destruction.
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* --------------------------------------------------------------------------
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* Pthreads-win32 - POSIX Threads Library for Win32
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* Copyright(C) 1998 John E. Bossom
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* Copyright(C) 1999,2005 Pthreads-win32 contributors
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* Contact Email: rpj@callisto.canberra.edu.au
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* The current list of contributors is contained
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* in the file CONTRIBUTORS included with the source
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* code distribution. The list can also be seen at the
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* following World Wide Web location:
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* http://sources.redhat.com/pthreads-win32/contributors.html
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library in the file COPYING.LIB;
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* if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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* --------------------------------------------------------------------------
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* Test Method (validation or falsification):
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* Requirements Tested:
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* - keys are created for each existing thread including the main thread
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* - keys are created for newly created threads
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* - keys are thread specific
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* - destroy routine is called on each thread exit including the main thread
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* - already validated: pthread_create()
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* - main thread also has a POSIX thread identity
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* - stdout matches file reference/tsd1.out
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* - fails to match file reference/tsd1.out
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* - output identifies failed component
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static pthread_key_t key = NULL;
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static int accesscount[NUM_THREADS];
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static int thread_set[NUM_THREADS];
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static int thread_destroyed[NUM_THREADS];
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static pthread_barrier_t startBarrier;
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destroy_key(void * arg)
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int * j = (int *) arg;
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/* Set TSD key from the destructor to test destructor iteration */
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assert(pthread_setspecific(key, arg) == 0);
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thread_destroyed[j - accesscount] = 1;
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int * j = (int *) arg;
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thread_set[j - accesscount] = 1;
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assert(pthread_getspecific(key) == NULL);
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assert(pthread_setspecific(key, arg) == 0);
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assert(pthread_setspecific(key, arg) == 0);
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assert(pthread_setspecific(key, arg) == 0);
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assert(pthread_getspecific(key) == arg);
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(void) pthread_barrier_wait(&startBarrier);
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/* Exiting the thread will call the key destructor. */
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pthread_t thread[NUM_THREADS];
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assert(pthread_barrier_init(&startBarrier, NULL, NUM_THREADS/2) == 0);
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for (i = 1; i < NUM_THREADS/2; i++)
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accesscount[i] = thread_set[i] = thread_destroyed[i] = 0;
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assert(pthread_create(&thread[i], NULL, mythread, (void *)&accesscount[i]) == 0);
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* Here we test that existing threads will get a key created
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assert(pthread_key_create(&key, destroy_key) == 0);
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(void) pthread_barrier_wait(&startBarrier);
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* Test main thread key.
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setkey((void *) &accesscount[0]);
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* Here we test that new threads will get a key created
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for (i = NUM_THREADS/2; i < NUM_THREADS; i++)
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accesscount[i] = thread_set[i] = thread_destroyed[i] = 0;
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assert(pthread_create(&thread[i], NULL, mythread, (void *)&accesscount[i]) == 0);
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* Wait for all threads to complete.
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for (i = 1; i < NUM_THREADS; i++)
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assert(pthread_join(thread[i], (void **) &result) == 0);
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assert(pthread_key_delete(key) == 0);
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assert(pthread_barrier_destroy(&startBarrier) == 0);
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for (i = 1; i < NUM_THREADS; i++)
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* The counter is incremented once when the key is set to
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* a value, and again when the key is destroyed. If the key
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* doesn't get set for some reason then it will still be
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* NULL and the destroy function will not be called, and
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* hence accesscount will not equal 2.
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if (accesscount[i] != 3)
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fprintf(stderr, "Thread %d key, set = %d, destroyed = %d\n",
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i, thread_set[i], thread_destroyed[i]);