libs/tiff/libtiff/tif_close.c

   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
  45 TIFFCleanup(TIFF* tif)
  46 {
  47         /*
  48          * Flush buffered data and directory (if dirty).
  49          */
  50         if (tif->tif_mode != O_RDONLY)
  51                 TIFFFlush(tif);
  52         (*tif->tif_cleanup)(tif);
  53         TIFFFreeDirectory(tif);
  54
  55         if (tif->tif_dirlist)
  56                 _TIFFfree(tif->tif_dirlist);
  57
  58         /*
  59          * Clean up client info links.
  60          */
  61         while( tif->tif_clientinfo )
  62         {
  63                 TIFFClientInfoLink *psLink = tif->tif_clientinfo;
  64
  65                 tif->tif_clientinfo = psLink->next;
  66                 _TIFFfree( psLink->name );
  67                 _TIFFfree( psLink );
  68         }
  69
  70         if (tif->tif_rawdata && (tif->tif_flags&TIFF_MYBUFFER))
  71                 _TIFFfree(tif->tif_rawdata);
  72         if (isMapped(tif))
  73                 TIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size);
  74
  75         /*
  76          * Clean up custom fields.
  77          */
  78         if (tif->tif_fields && tif->tif_nfields > 0) {
  79                 uint32_t i;
  80
  81                 for (i = 0; i < tif->tif_nfields; i++) {
  82                         TIFFField *fld = tif->tif_fields[i];
  83                         if (fld->field_bit == FIELD_CUSTOM &&
  84                             strncmp("Tag ", fld->field_name, 4) == 0) {
  85                                 _TIFFfree(fld->field_name);
  86                                 _TIFFfree(fld);
  87                         }
  88                 }
  89
  90                 _TIFFfree(tif->tif_fields);
  91         }
  92
  93         if (tif->tif_nfieldscompat > 0) {
  94                 uint32_t i;
  95
  96                 for (i = 0; i < tif->tif_nfieldscompat; i++) {
  97                         if (tif->tif_fieldscompat[i].allocated_size)
  98                                 _TIFFfree(tif->tif_fieldscompat[i].fields);
  99                 }
 100                 _TIFFfree(tif->tif_fieldscompat);
 101         }
 102
 103         _TIFFfree(tif);
 104 }
 105
 106 /************************************************************************/
 107 /*                            TIFFClose()                               */
 108 /************************************************************************/
 109
 110 /**
 111  * Close a previously opened TIFF file.
 112  *
 113  * TIFFClose closes a file that was previously opened with TIFFOpen().
 114  * Any buffered data are flushed to the file, including the contents of
 115  * the current directory (if modified); and all resources are reclaimed.
 116  *
 117  * @param tif A TIFF pointer.
 118  */
 119
 120 void
 121 TIFFClose(TIFF* tif)
 122 {
 123         TIFFCloseProc closeproc = tif->tif_closeproc;
 124         thandle_t fd = tif->tif_clientdata;
 125
 126         TIFFCleanup(tif);
 127         (void) (*closeproc)(fd);
 128 }
 129
 130 /* vim: set ts=8 sts=8 sw=8 noet: */
 131
 132 /*
 133  * Local Variables:
 134  * mode: c
 135  * c-basic-offset: 8
 136  * fill-column: 78
 137  * End:
 138  */