text: /*
   * $Id: stdio_funlockfile.c,v 1.4 2006-01-08 12:04:24 obarthel Exp $
   *
   * :ts=4
   *
   * Portable ISO 'C' (1994) runtime library for the Amiga computer
   * Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   *   - Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   *
   *   - Neither the name of Olaf Barthel nor the names of contributors
   *     may be used to endorse or promote products derived from this
   *     software without specific prior written permission.
   *
   * 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
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef _STDLIB_NULL_POINTER_CHECK_H
  #include "stdlib_null_pointer_check.h"
  #endif /* _STDLIB_NULL_POINTER_CHECK_H */
  
  /****************************************************************************/
  
  #ifndef _STDIO_HEADERS_H
  #include "stdio_headers.h"
  #endif /* _STDIO_HEADERS_H */
  
  /****************************************************************************/
  
  #if defined(__THREAD_SAFE)
  
  /****************************************************************************/
  
  void
  funlockfile(FILE *stream)
  {
  	struct iob * file = (struct iob *)stream;
  
  	ENTER();
  
  	SHOWPOINTER(stream);
  
  	assert( stream != NULL );
  
  	if(__check_abort_enabled)
  		__check_abort();
  
  	#if defined(CHECK_FOR_NULL_POINTERS)
  	{
  		if(stream == NULL)
  		{
  			SHOWMSG("invalid stream parameter");
  
  			__set_errno(EFAULT);
  			goto out;
  		}
  	}
  	#endif /* CHECK_FOR_NULL_POINTERS */
  
  	assert( __is_valid_iob(file) );
  	assert( FLAG_IS_SET(file->iob_Flags,IOBF_IN_USE) );
  
  	if(FLAG_IS_CLEAR(file->iob_Flags,IOBF_IN_USE))
  	{
  		SHOWMSG("this file is not even in use");
  
  		__set_errno(EBADF);
  		goto out;
  	}
  
  	if(file->iob_Lock != NULL)
  		ReleaseSemaphore(file->iob_Lock);
  
   out:
  
  	LEAVE();
  }
  
  /****************************************************************************/
  
  #endif /* __THREAD_SAFE */
  