src/tiff/libtiff/tif_flush.c

/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_flush.c,v 1.3 2000/09/15 20:52:42 warmerda Exp $ */

/*
 * Copyright (c) 1988-1997 Sam Leffler
 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Sam Leffler and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Sam Leffler and Silicon Graphics.
 *
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 *
 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */

/*
 * TIFF Library.
 */
#include "tiffiop.h"

int
TIFFFlush(TIFF* tif)
{

	if (tif->tif_mode != O_RDONLY) {
		if (!TIFFFlushData(tif))
			return (0);
		if ((tif->tif_flags & TIFF_DIRTYDIRECT) &&
		    !TIFFWriteDirectory(tif))
			return (0);
	}
	return (1);
}

/*
 * Flush buffered data to the file.
 *
 * Frank Warmerdam'2000: I modified this to return 1 if TIFF_BEENWRITING
 * is not set, so that TIFFFlush() will proceed to write out the directory.
 * The documentation says returning 1 is an error indicator, but not having
 * been writing isn't exactly a an error.  Hopefully this doesn't cause
 * problems for other people.
 */
int
TIFFFlushData(TIFF* tif)
{
	if ((tif->tif_flags & TIFF_BEENWRITING) == 0)
		return (0);
	if (tif->tif_flags & TIFF_POSTENCODE) {
		tif->tif_flags &= ~TIFF_POSTENCODE;
		if (!(*tif->tif_postencode)(tif))
			return (0);
	}
	return (TIFFFlushData1(tif));
}
Commit	Line	Data
	1	/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_flush.c,v 1.3 2000/09/15 20:52:42 warmerda Exp $ */
	2
	3	/*
	4	* Copyright (c) 1988-1997 Sam Leffler
	5	* Copyright (c) 1991-1997 Silicon Graphics, Inc.
	6	*
	7	* Permission to use, copy, modify, distribute, and sell this software and
	8	* its documentation for any purpose is hereby granted without fee, provided
	9	* that (i) the above copyright notices and this permission notice appear in
	10	* all copies of the software and related documentation, and (ii) the names of
	11	* Sam Leffler and Silicon Graphics may not be used in any advertising or
	12	* publicity relating to the software without the specific, prior written
	13	* permission of Sam Leffler and Silicon Graphics.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
	16	* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
	17	* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	18	*
	19	* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
	20	* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
	21	* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	22	* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
	23	* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
	24	* OF THIS SOFTWARE.
	25	*/
	26
	27	/*
	28	* TIFF Library.
	29	*/
	30	#include "tiffiop.h"
	31
	32	int
	33	TIFFFlush(TIFF* tif)
	34	{
	35
	36	if (tif->tif_mode != O_RDONLY) {
	37	if (!TIFFFlushData(tif))
	38	return (0);
	39	if ((tif->tif_flags & TIFF_DIRTYDIRECT) &&
	40	!TIFFWriteDirectory(tif))
	41	return (0);
	42	}
	43	return (1);
	44	}
	45
	46	/*
	47	* Flush buffered data to the file.
	48	*
	49	* Frank Warmerdam'2000: I modified this to return 1 if TIFF_BEENWRITING
	50	* is not set, so that TIFFFlush() will proceed to write out the directory.
	51	* The documentation says returning 1 is an error indicator, but not having
	52	* been writing isn't exactly a an error. Hopefully this doesn't cause
	53	* problems for other people.
	54	*/
	55	int
	56	TIFFFlushData(TIFF* tif)
	57	{
	58	if ((tif->tif_flags & TIFF_BEENWRITING) == 0)
	59	return (0);
	60	if (tif->tif_flags & TIFF_POSTENCODE) {
	61	tif->tif_flags &= ~TIFF_POSTENCODE;
	62	if (!(*tif->tif_postencode)(tif))
	63	return (0);
	64	}
	65	return (TIFFFlushData1(tif));
	66	}
	67