Geografic-Information-System/lib/vector/Vlib/close.c

/*!
   \file close.c

   \brief Vector library - Close map

   Higher level functions for reading/writing/manipulating vectors.

   (C) 2001-2008 by the GRASS Development Team

   This program is free software under the 
   GNU General Public License (>=v2). 
   Read the file COPYING that comes with GRASS
   for details.

   \author Original author CERL, probably Dave Gerdes or Mike Higgins.
   Update to GRASS 5.7 Radim Blazek and David D. Gray.

   \date 2001-2008
 */

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <grass/Vect.h>
#include <grass/glocale.h>

static int clo_dummy()
{
    return -1;
}

#ifndef HAVE_OGR
static int format()
{
    G_fatal_error(_("Requested format is not compiled in this version"));
    return 0;
}
#endif

static int (*Close_array[][2]) () = {
    {
    clo_dummy, V1_close_nat}
#ifdef HAVE_OGR
    , {
    clo_dummy, V1_close_ogr}
#else
    , {
    clo_dummy, format}
#endif
};


/*!
   \brief Close vector data file

   \param Map vector map to be closed

   \return 0 on success
   \return non-zero on error
 */
int Vect_close(struct Map_info *Map)
{
    struct Coor_info CInfo;

    G_debug(1,
	    "Vect_close(): name = %s, mapset = %s, format = %d, level = %d",
	    Map->name, Map->mapset, Map->format, Map->level);

    /* Store support files if in write mode on level 2 */
    if (strcmp(Map->mapset, G_mapset()) == 0 && Map->support_updated &&
	Map->plus.built == GV_BUILD_ALL) {
	char buf[GPATH_MAX];
	char file_path[GPATH_MAX];
	struct stat info;

	/* Delete old support files if available */
	sprintf(buf, "%s/%s", GRASS_VECT_DIRECTORY, Map->name);

	G__file_name(file_path, buf, GV_TOPO_ELEMENT, G_mapset());
	if (stat(file_path, &info) == 0)	/* file exists? */
	    unlink(file_path);

	G__file_name(file_path, buf, GV_SIDX_ELEMENT, G_mapset());
	if (stat(file_path, &info) == 0)	/* file exists? */
	    unlink(file_path);

	G__file_name(file_path, buf, GV_CIDX_ELEMENT, G_mapset());
	if (stat(file_path, &info) == 0)	/* file exists? */
	    unlink(file_path);

	Vect_coor_info(Map, &CInfo);
	Map->plus.coor_size = CInfo.size;
	Map->plus.coor_mtime = CInfo.mtime;

	Vect_save_topo(Map);

	/* Spatial index is not saved */
	/* Vect_save_spatial_index ( Map ); */

	Vect_cidx_save(Map);

#ifdef HAVE_OGR
	if (Map->format == GV_FORMAT_OGR)
	    V2_close_ogr(Map);
#endif
    }

    if (Map->level == 2 && Map->plus.release_support) {
	G_debug(1, "free topology");
	dig_free_plus(&(Map->plus));

	if (!Map->head_only) {
	    G_debug(1, "free spatial index");
	    dig_spidx_free(&(Map->plus));
	}

	G_debug(1, "free category index");
	dig_cidx_free(&(Map->plus));

    }

    if (Map->format == GV_FORMAT_NATIVE) {
	G_debug(1, "close history file");
	if (Map->hist_fp != NULL)
	    fclose(Map->hist_fp);
    }

    /* Close level 1 files / data sources if not head_only */
    if (!Map->head_only) {
	if (((*Close_array[Map->format][1]) (Map)) != 0) {
	    G_warning(_("Unable to close vector <%s>"),
		      Vect_get_full_name(Map));
	    return 1;
	}
    }

    G_free((void *)Map->name);
    Map->name = NULL;
    G_free((void *)Map->mapset);
    Map->mapset = NULL;

    Map->open = VECT_CLOSED_CODE;

    return 0;
}