/* SPDX-License-Identifier: BSD-2-Clause */

/**
 *  @file
 *
 *  @brief Destroy a Barrier Object 
 *  @ingroup POSIXAPI
 */

/*
 *  COPYRIGHT (c) 1989-2007.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  Copyright (c) 2017 embedded brains GmbH & Co. KG
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <rtems/posix/barrierimpl.h>

int pthread_barrier_destroy( pthread_barrier_t *_barrier )
{
  POSIX_Barrier_Control *barrier;
  Thread_queue_Context   queue_context;

  POSIX_BARRIER_VALIDATE_OBJECT( _barrier );

  barrier = _POSIX_Barrier_Get( _barrier );

  _POSIX_Barrier_Queue_acquire( barrier, &queue_context );

  if ( barrier->waiting_threads != 0 ) {
    _POSIX_Barrier_Queue_release( barrier, &queue_context );
    return EBUSY;
  }

  barrier->flags = 0;
  _POSIX_Barrier_Queue_release( barrier, &queue_context );
  return 0;
}