/src/FreeImage/Source/LibTIFF/tif_close.c

  1/* $Id: tif_close.c,v 1.37 2011/04/10 17:14:09 drolon 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/************************************************************************/
 33/*                            TIFFCleanup()                             */
 34/************************************************************************/
 35
 36/**
 37 * Auxiliary function to free the TIFF structure. Given structure will be
 38 * completetly freed, so you should save opened file handle and pointer
 39 * to the close procedure in external variables before calling
 40 * _TIFFCleanup(), if you will need these ones to close the file.
 41 * 
 42 * @param tif A TIFF pointer.
 43 */
 44
 45void
 46TIFFCleanup(TIFF* tif)
 47{
 48	if (tif->tif_mode != O_RDONLY)
 49	    /*
 50	     * Flush buffered data and directory (if dirty).
 51	     */
 52	    TIFFFlush(tif);
 53	(*tif->tif_cleanup)(tif);
 54	TIFFFreeDirectory(tif);
 55
 56	if (tif->tif_dirlist)
 57		_TIFFfree(tif->tif_dirlist);
 58
 59	/* Clean up client info links */
 60	while( tif->tif_clientinfo )
 61	{
 62		TIFFClientInfoLink *link = tif->tif_clientinfo;
 63
 64		tif->tif_clientinfo = link->next;
 65		_TIFFfree( link->name );
 66		_TIFFfree( link );
 67	}
 68
 69	if (tif->tif_rawdata && (tif->tif_flags&TIFF_MYBUFFER))
 70		_TIFFfree(tif->tif_rawdata);
 71	if (isMapped(tif))
 72		TIFFUnmapFileContents(tif, tif->tif_base, tif->tif_size);
 73
 74	/* Clean up custom fields */
 75	if (tif->tif_nfields > 0)
 76	{
 77		size_t  i;
 78
 79	    for (i = 0; i < tif->tif_nfields; i++) 
 80	    {
 81		TIFFFieldInfo *fld = tif->tif_fieldinfo[i];
 82		if (fld->field_bit == FIELD_CUSTOM && 
 83		    strncmp("Tag ", fld->field_name, 4) == 0) 
 84		{
 85		    _TIFFfree(fld->field_name);
 86		    _TIFFfree(fld);
 87		}
 88	    }   
 89	  
 90	    _TIFFfree(tif->tif_fieldinfo);
 91	}
 92
 93	_TIFFfree(tif);
 94}
 95
 96/************************************************************************/
 97/*                            TIFFClose()                               */
 98/************************************************************************/
 99
100/**
101 * Close a previously opened TIFF file.
102 *
103 * TIFFClose closes a file that was previously opened with TIFFOpen().
104 * Any buffered data are flushed to the file, including the contents of
105 * the current directory (if modified); and all resources are reclaimed.
106 * 
107 * @param tif A TIFF pointer.
108 */
109
110void
111TIFFClose(TIFF* tif)
112{
113	TIFFCloseProc closeproc = tif->tif_closeproc;
114	thandle_t fd = tif->tif_clientdata;
115
116	TIFFCleanup(tif);
117	(void) (*closeproc)(fd);
118}
119
120/*
121 * Local Variables:
122 * mode: c
123 * c-basic-offset: 8
124 * fill-column: 78
125 * End:
126 */