src/tiff/libtiff/tif_close.c

   1 /* $Id$ */
   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 #include <string.h>
  32
  33 /************************************************************************/
  34 /*                            TIFFCleanup()                             */
  35 /************************************************************************/
  36
  37 /**
  38  * Auxiliary function to free the TIFF structure. Given structure will be
  39  * completetly freed, so you should save opened file handle and pointer
  40  * to the close procedure in external variables before calling
  41  * _TIFFCleanup(), if you will need these ones to close the file.
  42  *
  43  * @param tif A TIFF pointer.
  44  */
  45
  46 void
  47 TIFFCleanup(TIFF* tif)
  48 {
  49         /*
  50          * Flush buffered data and directory (if dirty).
  51          */
  52         if (tif->tif_mode != O_RDONLY)
  53                 TIFFFlush(tif);
  54         (*tif->tif_cleanup)(tif);
  55         TIFFFreeDirectory(tif);
  56
  57         if (tif->tif_dirlist)
  58                 _TIFFfree(tif->tif_dirlist);
  59
  60         /*
  61          * Clean up client info links.
  62          */
  63         while( tif->tif_clientinfo )
  64         {
  65                 TIFFClientInfoLink *link = tif->tif_clientinfo;
  66
  67                 tif->tif_clientinfo = link->next;
  68                 _TIFFfree( link->name );
  69                 _TIFFfree( link );
  70         }
  71
  72         if (tif->tif_rawdata && (tif->tif_flags&TIFF_MYBUFFER))
  73                 _TIFFfree(tif->tif_rawdata);
  74         if (isMapped(tif))
  75                 TIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size);
  76
  77         /*
  78          * Clean up custom fields.
  79          */
  80         if (tif->tif_fields && tif->tif_nfields > 0) {
  81                 uint32 i;
  82
  83                 for (i = 0; i < tif->tif_nfields; i++) {
  84                         TIFFField *fld = tif->tif_fields[i];
  85                         if (fld->field_bit == FIELD_CUSTOM &&
  86                             strncmp("Tag ", fld->field_name, 4) == 0) {
  87                                 _TIFFfree(fld->field_name);
  88                                 _TIFFfree(fld);
  89                         }
  90                 }
  91
  92                 _TIFFfree(tif->tif_fields);
  93         }
  94
  95         if (tif->tif_nfieldscompat > 0) {
  96                 uint32 i;
  97
  98                 for (i = 0; i < tif->tif_nfieldscompat; i++) {
  99                         if (tif->tif_fieldscompat[i].allocated_size)
 100                                 _TIFFfree(tif->tif_fieldscompat[i].fields);
 101                 }
 102                 _TIFFfree(tif->tif_fieldscompat);
 103         }
 104
 105         _TIFFfree(tif);
 106 }
 107
 108 /************************************************************************/
 109 /*                            TIFFClose()                               */
 110 /************************************************************************/
 111
 112 /**
 113  * Close a previously opened TIFF file.
 114  *
 115  * TIFFClose closes a file that was previously opened with TIFFOpen().
 116  * Any buffered data are flushed to the file, including the contents of
 117  * the current directory (if modified); and all resources are reclaimed.
 118  *
 119  * @param tif A TIFF pointer.
 120  */
 121
 122 void
 123 TIFFClose(TIFF* tif)
 124 {
 125         TIFFCloseProc closeproc = tif->tif_closeproc;
 126         thandle_t fd = tif->tif_clientdata;
 127
 128         TIFFCleanup(tif);
 129         (void) (*closeproc)(fd);
 130 }
 131
 132 /* vim: set ts=8 sts=8 sw=8 noet: */
 133
 134 /*
 135  * Local Variables:
 136  * mode: c
 137  * c-basic-offset: 8
 138  * fill-column: 78
 139  * End:
 140  */