/src/freeimage-svn/FreeImage/trunk/Source/LibTIFF4/tif_close.c

Source
/*
 * 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"
#include <string.h>

/************************************************************************/
/*                            TIFFCleanup()                             */
/************************************************************************/

/**
 * Auxiliary function to free the TIFF structure. Given structure will be
 * completely freed, so you should save opened file handle and pointer
 * to the close procedure in external variables before calling
 * _TIFFCleanup(), if you will need these ones to close the file.
 *
 * @param tif A TIFF pointer.
 */

void TIFFCleanup(TIFF *tif)
{
    /*
     * Flush buffered data and directory (if dirty).
     */
    if (tif->tif_mode != O_RDONLY)
        TIFFFlush(tif);
    (*tif->tif_cleanup)(tif);
    TIFFFreeDirectory(tif);

    _TIFFCleanupIFDOffsetAndNumberMaps(tif);

    /*
     * Clean up client info links.
     */
    while (tif->tif_clientinfo)
    {
        TIFFClientInfoLink *psLink = tif->tif_clientinfo;

        tif->tif_clientinfo = psLink->next;
        _TIFFfreeExt(tif, psLink->name);
        _TIFFfreeExt(tif, psLink);
    }

    if (tif->tif_rawdata && (tif->tif_flags & TIFF_MYBUFFER))
        _TIFFfreeExt(tif, tif->tif_rawdata);
    if (isMapped(tif))
        TIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size);

    /*
     * Clean up custom fields.
     */
    if (tif->tif_fields && tif->tif_nfields > 0)
    {
        uint32_t i;

        for (i = 0; i < tif->tif_nfields; i++)
        {
            TIFFField *fld = tif->tif_fields[i];
            if (fld->field_name != NULL)
            {
                if (fld->field_bit == FIELD_CUSTOM &&
                    /* caution: tif_fields[i] must not be the beginning of a
                     * fields-array. Otherwise the following tags are also freed
                     * with the first free().
                     */
                    TIFFFieldIsAnonymous(fld))
                {
                    _TIFFfreeExt(tif, fld->field_name);
                    _TIFFfreeExt(tif, fld);
                }
            }
        }

        _TIFFfreeExt(tif, tif->tif_fields);
    }

    if (tif->tif_nfieldscompat > 0)
    {
        uint32_t i;

        for (i = 0; i < tif->tif_nfieldscompat; i++)
        {
            if (tif->tif_fieldscompat[i].allocated_size)
                _TIFFfreeExt(tif, tif->tif_fieldscompat[i].fields);
        }
        _TIFFfreeExt(tif, tif->tif_fieldscompat);
    }

    if (tif->tif_cur_cumulated_mem_alloc != 0)
    {
        TIFFErrorExtR(tif, "TIFFCleanup",
                      "tif_cur_cumulated_mem_alloc = %" PRIu64 " whereas it "
                      "should be 0",
                      (uint64_t)tif->tif_cur_cumulated_mem_alloc);
    }

    _TIFFfreeExt(NULL, tif);
}

/************************************************************************/
/*                    _TIFFCleanupIFDOffsetAndNumberMaps()              */
/************************************************************************/

void _TIFFCleanupIFDOffsetAndNumberMaps(TIFF *tif)
{
    if (tif->tif_map_dir_offset_to_number)
    {
        TIFFHashSetDestroy(tif->tif_map_dir_offset_to_number);
        tif->tif_map_dir_offset_to_number = NULL;
    }
    if (tif->tif_map_dir_number_to_offset)
    {
        TIFFHashSetDestroy(tif->tif_map_dir_number_to_offset);
        tif->tif_map_dir_number_to_offset = NULL;
    }
}

/************************************************************************/
/*                            TIFFClose()                               */
/************************************************************************/

/**
 * Close a previously opened TIFF file.
 *
 * TIFFClose closes a file that was previously opened with TIFFOpen().
 * Any buffered data are flushed to the file, including the contents of
 * the current directory (if modified); and all resources are reclaimed.
 *
 * @param tif A TIFF pointer.
 */

void TIFFClose(TIFF *tif)
{
    if (tif != NULL)
    {
        TIFFCloseProc closeproc = tif->tif_closeproc;
        thandle_t fd = tif->tif_clientdata;

        TIFFCleanup(tif);
        (void)(*closeproc)(fd);
    }
}

Line	Count	Source
1		/*
2		* Copyright (c) 1988-1997 Sam Leffler
3		* Copyright (c) 1991-1997 Silicon Graphics, Inc.
4		*
5		* Permission to use, copy, modify, distribute, and sell this software and
6		* its documentation for any purpose is hereby granted without fee, provided
7		* that (i) the above copyright notices and this permission notice appear in
8		* all copies of the software and related documentation, and (ii) the names of
9		* Sam Leffler and Silicon Graphics may not be used in any advertising or
10		* publicity relating to the software without the specific, prior written
11		* permission of Sam Leffler and Silicon Graphics.
12		*
13		* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
14		* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
15		* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
16		*
17		* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
18		* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
19		* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
20		* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
21		* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
22		* OF THIS SOFTWARE.
23		*/
24
25		/*
26		* TIFF Library.
27		*/
28		#include "tiffiop.h"
29		#include <string.h>
30
31		/************************************************************************/
32		/* TIFFCleanup() */
33		/************************************************************************/
34
35		/**
36		* Auxiliary function to free the TIFF structure. Given structure will be
37		* completely freed, so you should save opened file handle and pointer
38		* to the close procedure in external variables before calling
39		* _TIFFCleanup(), if you will need these ones to close the file.
40		*
41		* @param tif A TIFF pointer.
42		*/
43
44		void TIFFCleanup(TIFF *tif)
45	0	{
46		/*
47		* Flush buffered data and directory (if dirty).
48		*/
49	0	if (tif->tif_mode != O_RDONLY)
50	0	TIFFFlush(tif);
51	0	(*tif->tif_cleanup)(tif);
52	0	TIFFFreeDirectory(tif);
53
54	0	_TIFFCleanupIFDOffsetAndNumberMaps(tif);
55
56		/*
57		* Clean up client info links.
58		*/
59	0	while (tif->tif_clientinfo)
60	0	{
61	0	TIFFClientInfoLink *psLink = tif->tif_clientinfo;
62
63	0	tif->tif_clientinfo = psLink->next;
64	0	_TIFFfreeExt(tif, psLink->name);
65	0	_TIFFfreeExt(tif, psLink);
66	0	}
67
68	0	if (tif->tif_rawdata && (tif->tif_flags & TIFF_MYBUFFER))
69	0	_TIFFfreeExt(tif, tif->tif_rawdata);
70	0	if (isMapped(tif))
71	0	TIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size);
72
73		/*
74		* Clean up custom fields.
75		*/
76	0	if (tif->tif_fields && tif->tif_nfields > 0)
77	0	{
78	0	uint32_t i;
79
80	0	for (i = 0; i < tif->tif_nfields; i++)
81	0	{
82	0	TIFFField *fld = tif->tif_fields[i];
83	0	if (fld->field_name != NULL)
84	0	{
85	0	if (fld->field_bit == FIELD_CUSTOM &&
86		/* caution: tif_fields[i] must not be the beginning of a
87		* fields-array. Otherwise the following tags are also freed
88		* with the first free().
89		*/
90	0	TIFFFieldIsAnonymous(fld))
91	0	{
92	0	_TIFFfreeExt(tif, fld->field_name);
93	0	_TIFFfreeExt(tif, fld);
94	0	}
95	0	}
96	0	}
97
98	0	_TIFFfreeExt(tif, tif->tif_fields);
99	0	}
100
101	0	if (tif->tif_nfieldscompat > 0)
102	0	{
103	0	uint32_t i;
104
105	0	for (i = 0; i < tif->tif_nfieldscompat; i++)
106	0	{
107	0	if (tif->tif_fieldscompat[i].allocated_size)
108	0	_TIFFfreeExt(tif, tif->tif_fieldscompat[i].fields);
109	0	}
110	0	_TIFFfreeExt(tif, tif->tif_fieldscompat);
111	0	}
112
113	0	if (tif->tif_cur_cumulated_mem_alloc != 0)
114	0	{
115	0	TIFFErrorExtR(tif, "TIFFCleanup",
116	0	"tif_cur_cumulated_mem_alloc = %" PRIu64 " whereas it "
117	0	"should be 0",
118	0	(uint64_t)tif->tif_cur_cumulated_mem_alloc);
119	0	}
120
121	0	_TIFFfreeExt(NULL, tif);
122	0	}
123
124		/************************************************************************/
125		/* _TIFFCleanupIFDOffsetAndNumberMaps() */
126		/************************************************************************/
127
128		void _TIFFCleanupIFDOffsetAndNumberMaps(TIFF *tif)
129	0	{
130	0	if (tif->tif_map_dir_offset_to_number)
131	0	{
132	0	TIFFHashSetDestroy(tif->tif_map_dir_offset_to_number);
133	0	tif->tif_map_dir_offset_to_number = NULL;
134	0	}
135	0	if (tif->tif_map_dir_number_to_offset)
136	0	{
137	0	TIFFHashSetDestroy(tif->tif_map_dir_number_to_offset);
138	0	tif->tif_map_dir_number_to_offset = NULL;
139	0	}
140	0	}
141
142		/************************************************************************/
143		/* TIFFClose() */
144		/************************************************************************/
145
146		/**
147		* Close a previously opened TIFF file.
148		*
149		* TIFFClose closes a file that was previously opened with TIFFOpen().
150		* Any buffered data are flushed to the file, including the contents of
151		* the current directory (if modified); and all resources are reclaimed.
152		*
153		* @param tif A TIFF pointer.
154		*/
155
156		void TIFFClose(TIFF *tif)
157	0	{
158	0	if (tif != NULL)
159	0	{
160	0	TIFFCloseProc closeproc = tif->tif_closeproc;
161	0	thandle_t fd = tif->tif_clientdata;
162
163	0	TIFFCleanup(tif);
164	0	(void)(*closeproc)(fd);
165	0	}
166	0	}

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Created: 2025-10-28 06:24