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close.c
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/**
* \file lib/segment/close.c
*
* \brief Segment closing routine.
*
* This program is free software under the GNU General Public License
* (>=v2). Read the file COPYING that comes with GRASS for details.
*
* \author GRASS Development Team
*
* \date 2018
*/
#include <unistd.h>
#include <fcntl.h>
#include <grass/gis.h>
#include <grass/glocale.h>
#include "local_proto.h"
/**
* \fn int Segment_close (SEGMENT *SEG)
*
* \brief Free memory allocated to segment, delete temp file.
*
* Releases the allocated memory associated with the segment file
* <b>seg</b> and deletes the temporary file.
*
* \param[in,out] SEG segment
* \return 1 if successful
* \return -1 if SEGMENT is not available (not open)
*/
int Segment_close(SEGMENT *SEG)
{
if (SEG->open != 1)
return -1;
if (SEG->cache) {
G_free(SEG->cache);
}
else {
Segment_release(SEG);
close(SEG->fd);
unlink(SEG->fname);
SEG->fd = -1;
SEG->fname = NULL;
}
SEG->open = 0;
return 1;
}
G_free
void G_free(void *buf)
Free allocated memory.
Definition alloc.c:147
NULL
#define NULL
Definition ccmath.h:32
Segment_close
int Segment_close(SEGMENT *SEG)
Free memory allocated to segment, delete temp file.
Definition close.c:32
Segment_release
int Segment_release(SEGMENT *SEG)
Free memory allocated to segment.
Definition segment/release.c:33