GRASS GIS 8 Programmer's Manual 8.4.1(2025)-45ca3179ab
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segment/release.c
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1/**
2 * \file lib/segment/release.c
3 *
4 * \brief Segment release routines.
5 *
6 * This program is free software under the GNU General Public License
7 * (>=v2). Read the file COPYING that comes with GRASS for details.
8 *
9 * \author GRASS GIS Development Team
10 *
11 * \date 2005-2009
12 */
13
14#include <stdlib.h>
15#include <grass/gis.h>
16#include "local_proto.h"
17
18/**
19 * \fn int Segment_release (SEGMENT *SEG)
20 *
21 * \brief Free memory allocated to segment.
22 *
23 * Releases the allocated memory associated with the segment file
24 * <b>seg</b>.
25 *
26 * <b>Note:</b> Does not close the file. Does not flush the data which
27 * may be pending from previous <i>Segment_put()</i> calls.
28 *
29 * \param[in,out] SEG segment
30 * \return 1 if successful
31 * \return -1 if SEGMENT is not available (not open)
32 */
33
34int Segment_release(SEGMENT *SEG)
35{
36 int i;
37
38 if (SEG->open != 1)
39 return -1;
40
41 for (i = 0; i < SEG->nseg; i++)
42 G_free(SEG->scb[i].buf);
43 G_free(SEG->scb);
44
45 G_free(SEG->freeslot);
46 G_free(SEG->agequeue);
47 G_free(SEG->load_idx);
48
49 SEG->open = 0;
50
51 return 1;
52}
void G_free(void *buf)
Free allocated memory.
Definition alloc.c:150
int Segment_release(SEGMENT *SEG)
Free memory allocated to segment.