lwgeom_to_wkb_varlena()

lwvarlena_t* lwgeom_to_wkb_varlena	(	const LWGEOM *	geom,
		uint8_t	variant
	)

Definition at line 851 of file lwout_wkb.c.

{
        size_t b_size = lwgeom_to_wkb_size(geom, variant);
        /* Hex string takes twice as much space as binary, but No NULL ending in varlena */
        if (variant & WKB_HEX)
        {
                b_size = 2 * b_size;
        }
 
        lwvarlena_t *buffer = (lwvarlena_t *)lwalloc(b_size + LWVARHDRSZ);
        int written_size = lwgeom_to_wkb_write_buf(geom, variant, (uint8_t *)buffer->data);
        if (written_size != (ptrdiff_t)b_size)
        {
                char *wkt = lwgeom_to_wkt(geom, WKT_EXTENDED, 15, NULL);
                lwerror("Output WKB is not the same size as the allocated buffer. Variant: %u, Geom: %s", variant, wkt);
                lwfree(wkt);
                lwfree(buffer);
                return NULL;
        }
        LWSIZE_SET(buffer->size, written_size + LWVARHDRSZ);
        return buffer;
}

References buffer(), lwalloc(), lwerror(), lwfree(), lwgeom_to_wkb_size(), lwgeom_to_wkb_write_buf(), lwgeom_to_wkt(), LWSIZE_SET, LWVARHDRSZ, variant, WKB_HEX, and WKT_EXTENDED.

Referenced by cu_wkb_in(), geography_send(), LWGEOM_asBinary(), lwgeom_to_hexwkb_varlena(), RASTER_asRaster(), RASTER_clip(), RASTER_setPixelValuesGeomval(), rt_raster_gdal_polygonize(), and WKBFromLWGEOM().

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