eccodes/src/grib_accessor_class_pad.cc

127 lines
4.0 KiB
C++

/*
* (C) Copyright 2005- ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
*
* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
*/
/**************************************
* Enrico Fucile
**************************************/
#include "grib_api_internal.h"
/*
This is used by make_class.pl
START_CLASS_DEF
CLASS = accessor
SUPER = grib_accessor_class_padding
IMPLEMENTS = init;preferred_size
MEMBERS =grib_expression* expression
END_CLASS_DEF
*/
/* START_CLASS_IMP */
/*
Don't edit anything between START_CLASS_IMP and END_CLASS_IMP
Instead edit values between START_CLASS_DEF and END_CLASS_DEF
or edit "accessor.class" and rerun ./make_class.pl
*/
static void init(grib_accessor*, const long, grib_arguments*);
static size_t preferred_size(grib_accessor*, int);
typedef struct grib_accessor_pad
{
grib_accessor att;
/* Members defined in gen */
/* Members defined in bytes */
/* Members defined in padding */
/* Members defined in pad */
grib_expression* expression;
} grib_accessor_pad;
extern grib_accessor_class* grib_accessor_class_padding;
static grib_accessor_class _grib_accessor_class_pad = {
&grib_accessor_class_padding, /* super */
"pad", /* name */
sizeof(grib_accessor_pad), /* size */
0, /* inited */
0, /* init_class */
&init, /* init */
0, /* post_init */
0, /* destroy */
0, /* dump */
0, /* next_offset */
0, /* get length of string */
0, /* get number of values */
0, /* get number of bytes */
0, /* get offset to bytes */
0, /* get native type */
0, /* get sub_section */
0, /* pack_missing */
0, /* is_missing */
0, /* pack_long */
0, /* unpack_long */
0, /* pack_double */
0, /* pack_float */
0, /* unpack_double */
0, /* unpack_float */
0, /* pack_string */
0, /* unpack_string */
0, /* pack_string_array */
0, /* unpack_string_array */
0, /* pack_bytes */
0, /* unpack_bytes */
0, /* pack_expression */
0, /* notify_change */
0, /* update_size */
&preferred_size, /* preferred_size */
0, /* resize */
0, /* nearest_smaller_value */
0, /* next accessor */
0, /* compare vs. another accessor */
0, /* unpack only ith value (double) */
0, /* unpack only ith value (float) */
0, /* unpack a given set of elements (double) */
0, /* unpack a given set of elements (float) */
0, /* unpack a subarray */
0, /* clear */
0, /* clone accessor */
};
grib_accessor_class* grib_accessor_class_pad = &_grib_accessor_class_pad;
/* END_CLASS_IMP */
static size_t preferred_size(grib_accessor* a, int from_handle)
{
grib_accessor_pad* self = (grib_accessor_pad*)a;
long length = 0;
grib_expression_evaluate_long(grib_handle_of_accessor(a), self->expression, &length);
return length > 0 ? length : 0;
}
static void init(grib_accessor* a, const long len, grib_arguments* arg)
{
grib_accessor_pad* self = (grib_accessor_pad*)a;
self->expression = grib_arguments_get_expression(grib_handle_of_accessor(a), arg, 0);
a->length = preferred_size(a, 1);
}