/*
 * $Id: unistd_sync_fd.c,v 1.8 2006-11-16 14:39:23 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 _UNISTD_HEADERS_H
#include "unistd_headers.h"
#endif /* _UNISTD_HEADERS_H */

/****************************************************************************/

#if defined(__amigaos4__) && !defined(Flush)
#define Flush(fh) FFlush(fh)
#endif /* __amigaos4__ && !Flush */

/****************************************************************************/

/* The following is not part of the ISO 'C' (1994) standard. */

/****************************************************************************/

int
__sync_fd(struct fd * fd,int mode)
{
	int result = ERROR;

	assert( fd != NULL );

	__fd_lock(fd);

	if(FLAG_IS_SET(fd->fd_Flags,FDF_IS_SOCKET))
	{
		__set_errno(EINVAL);
		goto out;
	}

	if(FLAG_IS_SET(fd->fd_Flags,FDF_STDIO))
	{
		__set_errno(EBADF);
		goto out;
	}

	/* The mode tells us what to flush. 0 means "flush just the data", and
	   everything else means "flush everything. */
	Flush(fd->fd_File);

	if(mode != 0)
	{
		struct FileHandle * fh = BADDR(fd->fd_File);

		/* Verify that this file is not bound to "NIL:". */
		if(fh->fh_Type != NULL)
			DoPkt(fh->fh_Type,ACTION_FLUSH,	0,0,0,0,0);
	}

	result = OK;

 out:

	__fd_unlock(fd);

	return(result);
}