mingw-w64-libraries/winpthreads/tests/pthread_mutex/attr-protocol.c

/*
   Copyright (c) 2026 mingw-w64 project

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   copy of this software and associated documentation files (the "Software"),
   to deal in the Software without restriction, including without limitation
   the rights to use, copy, modify, merge, publish, distribute, sublicense,
   and/or sell copies of the Software, and to permit persons to whom the
   Software is furnished to do so, subject to the following conditions:

   The above copyright notice and this permission notice shall be included in
   all copies or substantial portions of the Software.

   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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   DEALINGS IN THE SOFTWARE.
*/

#include "test.h"

/**
 * Test Summary:
 *
 * Test functions `pthread_mutexattr_setprotocol` and
 * `pthread_mutexattr_getprotocol`.
 */

static void DoTest (int value, int expectedValue, int expectedReturn1, int expectedReturn2) {
  pthread_mutexattr_t mutexAttr;
  pthread_mutex_t mutex;

  assert (pthread_mutexattr_init (&mutexAttr) == 0);
  assert (pthread_mutexattr_setprotocol (&mutexAttr, value) == expectedReturn1);
  assert (pthread_mutexattr_getprotocol (&mutexAttr, &value) == 0);
  assert (value == expectedValue);
  assert (pthread_mutex_init (&mutex, &mutexAttr) == expectedReturn2);
  if (expectedReturn2 == 0) {
    assert (pthread_mutex_destroy (&mutex) == 0);
  }
  assert (pthread_mutexattr_destroy (&mutexAttr) == 0);
}

int main (void) {
  /**
   * Currently winpthreads only supports `PTHREAD_PRIO_NONE`.
   */
  DoTest (PTHREAD_PRIO_NONE, PTHREAD_PRIO_NONE, 0, 0);

  /**
   * POSIX realtime extensions are not implemented.
   */
  DoTest (PTHREAD_PRIO_INHERIT, PTHREAD_PRIO_NONE, ENOTSUP, 0);
  DoTest (PTHREAD_PRIO_PROTECT, PTHREAD_PRIO_NONE, ENOTSUP, 0);

  /**
   * Try setting an invalid value; default attribute value must be used.
   */
  DoTest (0xFF, PTHREAD_PRIO_NONE, EINVAL, 0);

  return 0;
}