mirror of https://github.com/ecmwf/eccodes.git
140 lines
4.6 KiB
C++
140 lines
4.6 KiB
C++
/*
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* (C) Copyright 2005- ECMWF.
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*
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* This software is licensed under the terms of the Apache Licence Version 2.0
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* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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*
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* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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*/
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/**************************************
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* Enrico Fucile
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**************************************/
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#include "grib_api_internal.h"
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/*
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This is used by make_class.pl
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START_CLASS_DEF
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CLASS = accessor
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SUPER = grib_accessor_class_padding
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IMPLEMENTS = init;preferred_size
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MEMBERS=const char* section_offset
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MEMBERS=const char* section_length
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END_CLASS_DEF
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*/
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/* START_CLASS_IMP */
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/*
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Don't edit anything between START_CLASS_IMP and END_CLASS_IMP
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Instead edit values between START_CLASS_DEF and END_CLASS_DEF
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or edit "accessor.class" and rerun ./make_class.pl
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*/
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static void init(grib_accessor*, const long, grib_arguments*);
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static size_t preferred_size(grib_accessor*, int);
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typedef struct grib_accessor_padtoeven
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{
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grib_accessor att;
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/* Members defined in gen */
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/* Members defined in bytes */
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/* Members defined in padding */
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/* Members defined in padtoeven */
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const char* section_offset;
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const char* section_length;
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} grib_accessor_padtoeven;
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extern grib_accessor_class* grib_accessor_class_padding;
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static grib_accessor_class _grib_accessor_class_padtoeven = {
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&grib_accessor_class_padding, /* super */
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"padtoeven", /* name */
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sizeof(grib_accessor_padtoeven), /* size */
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0, /* inited */
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0, /* init_class */
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&init, /* init */
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0, /* post_init */
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0, /* destroy */
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0, /* dump */
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0, /* next_offset */
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0, /* get length of string */
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0, /* get number of values */
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0, /* get number of bytes */
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0, /* get offset to bytes */
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0, /* get native type */
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0, /* get sub_section */
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0, /* pack_missing */
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0, /* is_missing */
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0, /* pack_long */
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0, /* unpack_long */
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0, /* pack_double */
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0, /* pack_float */
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0, /* unpack_double */
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0, /* unpack_float */
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0, /* pack_string */
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0, /* unpack_string */
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0, /* pack_string_array */
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0, /* unpack_string_array */
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0, /* pack_bytes */
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0, /* unpack_bytes */
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0, /* pack_expression */
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0, /* notify_change */
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0, /* update_size */
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&preferred_size, /* preferred_size */
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0, /* resize */
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0, /* nearest_smaller_value */
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0, /* next accessor */
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0, /* compare vs. another accessor */
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0, /* unpack only ith value (double) */
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0, /* unpack only ith value (float) */
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0, /* unpack a given set of elements (double) */
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0, /* unpack a given set of elements (float) */
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0, /* unpack a subarray */
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0, /* clear */
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0, /* clone accessor */
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};
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grib_accessor_class* grib_accessor_class_padtoeven = &_grib_accessor_class_padtoeven;
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/* END_CLASS_IMP */
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static size_t preferred_size(grib_accessor* a, int from_handle)
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{
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grib_accessor_padtoeven* self = (grib_accessor_padtoeven*)a;
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long offset = 0;
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long length = 0;
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long seclen;
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grib_get_long_internal(grib_handle_of_accessor(a), self->section_offset, &offset);
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grib_get_long_internal(grib_handle_of_accessor(a), self->section_length, &length);
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if ((length % 2) && from_handle) {
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// grib_context_log(a->context,
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// GRIB_LOG_ERROR,"GRIB message has an odd length section (%ld, %s)",
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// (long)length,a->name);
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return 0;
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}
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/* printf("EVEN %ld %ld\n",(long) a->offset,(long) offset);*/
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seclen = a->offset - offset;
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return (seclen % 2) ? 1 : 0;
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}
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static void init(grib_accessor* a, const long len, grib_arguments* args)
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{
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grib_accessor_padtoeven* self = (grib_accessor_padtoeven*)a;
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self->section_offset = grib_arguments_get_name(grib_handle_of_accessor(a), args, 0);
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self->section_length = grib_arguments_get_name(grib_handle_of_accessor(a), args, 1);
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a->length = preferred_size(a, 1);
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}
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