src/tiff/libtiff/tif_close.c

   1
   2 /*
   3  * Copyright (c) 1988-1997 Sam Leffler
   4  * Copyright (c) 1991-1997 Silicon Graphics, Inc.
   5  *
   6  * Permission to use, copy, modify, distribute, and sell this software and
   7  * its documentation for any purpose is hereby granted without fee, provided
   8  * that (i) the above copyright notices and this permission notice appear in
   9  * all copies of the software and related documentation, and (ii) the names of
  10  * Sam Leffler and Silicon Graphics may not be used in any advertising or
  11  * publicity relating to the software without the specific, prior written
  12  * permission of Sam Leffler and Silicon Graphics.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
  15  * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  16  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  17  *
  18  * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
  19  * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
  20  * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  21  * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  22  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  23  * OF THIS SOFTWARE.
  24  */
  25
  26 /*
  27  * TIFF Library.
  28  */
  29 #include "tiffiop.h"
  30 #include <string.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
  45 void
  46 TIFFCleanup(TIFF* tif)
  47 {
  48         /*
  49          * Flush buffered data and directory (if dirty).
  50          */
  51         if (tif->tif_mode != O_RDONLY)
  52                 TIFFFlush(tif);
  53         (*tif->tif_cleanup)(tif);
  54         TIFFFreeDirectory(tif);
  55
  56         if (tif->tif_dirlist)
  57                 _TIFFfree(tif->tif_dirlist);
  58
  59         /*
  60          * Clean up client info links.
  61          */
  62         while( tif->tif_clientinfo )
  63         {
  64                 TIFFClientInfoLink *link = tif->tif_clientinfo;
  65
  66                 tif->tif_clientinfo = link->next;
  67                 _TIFFfree( link->name );
  68                 _TIFFfree( link );
  69         }
  70
  71         if (tif->tif_rawdata && (tif->tif_flags&TIFF_MYBUFFER))
  72                 _TIFFfree(tif->tif_rawdata);
  73         if (isMapped(tif))
  74                 TIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size);
  75
  76         /*
  77          * Clean up custom fields.
  78          */
  79         if (tif->tif_fields && tif->tif_nfields > 0) {
  80                 uint32 i;
  81
  82                 for (i = 0; i < tif->tif_nfields; i++) {
  83                         TIFFField *fld = tif->tif_fields[i];
  84                         if (fld->field_bit == FIELD_CUSTOM &&
  85                             strncmp("Tag ", fld->field_name, 4) == 0) {
  86                                 _TIFFfree(fld->field_name);
  87                                 _TIFFfree(fld);
  88                         }
  89                 }
  90
  91                 _TIFFfree(tif->tif_fields);
  92         }
  93
  94         if (tif->tif_nfieldscompat > 0) {
  95                 uint32 i;
  96
  97                 for (i = 0; i < tif->tif_nfieldscompat; i++) {
  98                         if (tif->tif_fieldscompat[i].allocated_size)
  99                                 _TIFFfree(tif->tif_fieldscompat[i].fields);
 100                 }
 101                 _TIFFfree(tif->tif_fieldscompat);
 102         }
 103
 104         _TIFFfree(tif);
 105 }
 106
 107 /************************************************************************/
 108 /*                            TIFFClose()                               */
 109 /************************************************************************/
 110
 111 /**
 112  * Close a previously opened TIFF file.
 113  *
 114  * TIFFClose closes a file that was previously opened with TIFFOpen().
 115  * Any buffered data are flushed to the file, including the contents of
 116  * the current directory (if modified); and all resources are reclaimed.
 117  *
 118  * @param tif A TIFF pointer.
 119  */
 120
 121 void
 122 TIFFClose(TIFF* tif)
 123 {
 124         TIFFCloseProc closeproc = tif->tif_closeproc;
 125         thandle_t fd = tif->tif_clientdata;
 126
 127         TIFFCleanup(tif);
 128         (void) (*closeproc)(fd);
 129 }
 130
 131 /* vim: set ts=8 sts=8 sw=8 noet: */
 132
 133 /*
 134  * Local Variables:
 135  * mode: c
 136  * c-basic-offset: 8
 137  * fill-column: 78
 138  * End:
 139  */