mirror of https://github.com/ecmwf/eccodes.git
144 lines
4.4 KiB
C++
144 lines
4.4 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.
|
|
*/
|
|
|
|
#include "grib_api_internal.h"
|
|
|
|
/*
|
|
This is used by make_class.pl
|
|
|
|
START_CLASS_DEF
|
|
CLASS = accessor
|
|
SUPER = grib_accessor_class_gen
|
|
IMPLEMENTS = unpack_long
|
|
IMPLEMENTS = pack_long
|
|
IMPLEMENTS = get_native_type
|
|
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 int get_native_type(grib_accessor*);
|
|
static int pack_long(grib_accessor*, const long* val, size_t* len);
|
|
static int unpack_long(grib_accessor*, long* val, size_t* len);
|
|
|
|
typedef struct grib_accessor_uint64
|
|
{
|
|
grib_accessor att;
|
|
/* Members defined in gen */
|
|
/* Members defined in uint64 */
|
|
} grib_accessor_uint64;
|
|
|
|
extern grib_accessor_class* grib_accessor_class_gen;
|
|
|
|
static grib_accessor_class _grib_accessor_class_uint64 = {
|
|
&grib_accessor_class_gen, /* super */
|
|
"uint64", /* name */
|
|
sizeof(grib_accessor_uint64), /* size */
|
|
0, /* inited */
|
|
0, /* init_class */
|
|
0, /* 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 */
|
|
&get_native_type, /* get native type */
|
|
0, /* get sub_section */
|
|
0, /* pack_missing */
|
|
0, /* is_missing */
|
|
&pack_long, /* pack_long */
|
|
&unpack_long, /* 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 */
|
|
0, /* 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_uint64 = &_grib_accessor_class_uint64;
|
|
|
|
/* END_CLASS_IMP */
|
|
|
|
static int unpack_long(grib_accessor* a, long* val, size_t* len)
|
|
{
|
|
long value = 0;
|
|
long pos = a->offset;
|
|
unsigned char* data = grib_handle_of_accessor(a)->buffer->data;
|
|
unsigned long long result = 0, tmp;
|
|
int i;
|
|
|
|
if (*len < 1) {
|
|
grib_context_log(a->context, GRIB_LOG_ERROR, "Wrong size for %s it contains %d values ", a->name, 1);
|
|
*len = 0;
|
|
return GRIB_ARRAY_TOO_SMALL;
|
|
}
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
result <<= 8;
|
|
result |= data[pos + i];
|
|
}
|
|
|
|
value = result;
|
|
tmp = value;
|
|
|
|
/* Result does not fit in long */
|
|
if (tmp != result) {
|
|
grib_context_log(a->context, GRIB_LOG_ERROR, "Value for %s cannot be decoded as a 'long' (%llu)", a->name, result);
|
|
return GRIB_DECODING_ERROR;
|
|
}
|
|
|
|
*val = value;
|
|
*len = 1;
|
|
return GRIB_SUCCESS;
|
|
}
|
|
|
|
static int pack_long(grib_accessor* a, const long* val, size_t* len)
|
|
{
|
|
return GRIB_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
static int get_native_type(grib_accessor* a)
|
|
{
|
|
return GRIB_TYPE_LONG;
|
|
}
|