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/**
* Copyright 2005-2007 ECMWF
*
* Licensed under the GNU Lesser General Public License which
* incorporates the terms and conditions of version 3 of the GNU
* General Public License.
* See LICENSE and gpl-3.0.txt for details.
*/
/*****************************
* Enrico Fucile
****************************/
#include "grib_api_internal.h"
/*
This is used by make_class.pl
START_CLASS_DEF
CLASS = accessor
SUPER = grib_accessor_class_long
IMPLEMENTS = unpack_long
IMPLEMENTS = init
MEMBERS = const char* numberOfValues
MEMBERS = const char* bitsPerValue
MEMBERS = const char* offsetBeforeData
MEMBERS = const char* offsetAfterData
MEMBERS = const char* unusedBits
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 unpack_long(grib_accessor*, long* val,size_t *len);
static void init(grib_accessor*,const long, grib_arguments* );
static void init_class(grib_accessor_class*);
typedef struct grib_accessor_number_of_coded_values {
grib_accessor att;
/* Members defined in gen */
/* Members defined in long */
/* Members defined in number_of_coded_values */
const char* numberOfValues;
const char* bitsPerValue;
const char* offsetBeforeData;
const char* offsetAfterData;
const char* unusedBits;
} grib_accessor_number_of_coded_values;
extern grib_accessor_class* grib_accessor_class_long;
static grib_accessor_class _grib_accessor_class_number_of_coded_values = {
&grib_accessor_class_long, /* super */
"number_of_coded_values", /* name */
sizeof(grib_accessor_number_of_coded_values), /* size */
0, /* inited */
&init_class, /* init_class */
&init, /* init */
0, /* post_init */
0, /* free mem */
0, /* describes himself */
0, /* get length of section */
0, /* get number of values */
0, /* get number of bytes */
0, /* get offset to bytes */
0, /* get native type */
0, /* get sub_section */
0, /* grib_pack procedures long */
0, /* grib_pack procedures long */
0, /* grib_pack procedures long */
&unpack_long, /* grib_unpack procedures long */
0, /* grib_pack procedures double */
0, /* grib_unpack procedures double */
0, /* grib_pack procedures string */
0, /* grib_unpack procedures string */
0, /* grib_pack procedures bytes */
0, /* grib_unpack procedures 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 */
0, /* clear */
};
grib_accessor_class* grib_accessor_class_number_of_coded_values = &_grib_accessor_class_number_of_coded_values;
static void init_class(grib_accessor_class* c)
{
c->dump = (*(c->super))->dump;
c->next_offset = (*(c->super))->next_offset;
c->value_count = (*(c->super))->value_count;
c->byte_count = (*(c->super))->byte_count;
c->byte_offset = (*(c->super))->byte_offset;
c->get_native_type = (*(c->super))->get_native_type;
c->sub_section = (*(c->super))->sub_section;
c->pack_missing = (*(c->super))->pack_missing;
c->is_missing = (*(c->super))->is_missing;
c->pack_long = (*(c->super))->pack_long;
c->pack_double = (*(c->super))->pack_double;
c->unpack_double = (*(c->super))->unpack_double;
c->pack_string = (*(c->super))->pack_string;
c->unpack_string = (*(c->super))->unpack_string;
c->pack_bytes = (*(c->super))->pack_bytes;
c->unpack_bytes = (*(c->super))->unpack_bytes;
c->pack_expression = (*(c->super))->pack_expression;
c->notify_change = (*(c->super))->notify_change;
c->update_size = (*(c->super))->update_size;
c->preferred_size = (*(c->super))->preferred_size;
c->resize = (*(c->super))->resize;
c->nearest_smaller_value = (*(c->super))->nearest_smaller_value;
c->next = (*(c->super))->next;
c->compare = (*(c->super))->compare;
c->unpack_double_element = (*(c->super))->unpack_double_element;
c->clear = (*(c->super))->clear;
}
/* END_CLASS_IMP */
static void init(grib_accessor* a,const long l, grib_arguments* c)
{
int n=0;
grib_accessor_number_of_coded_values* self = (grib_accessor_number_of_coded_values*)a;
self->bitsPerValue = grib_arguments_get_name(a->parent->h,c,n++);
self->offsetBeforeData = grib_arguments_get_name(a->parent->h,c,n++);
self->offsetAfterData = grib_arguments_get_name(a->parent->h,c,n++);
self->unusedBits = grib_arguments_get_name(a->parent->h,c,n++);
self->numberOfValues = grib_arguments_get_name(a->parent->h,c,n++);
a->flags |= GRIB_ACCESSOR_FLAG_READ_ONLY;
a->flags |= GRIB_ACCESSOR_FLAG_FUNCTION;
a->length=0;
}
static int unpack_long(grib_accessor* a, long* val, size_t *len)
{
int ret=GRIB_SUCCESS;
long bpv=0;
long offsetBeforeData=0,offsetAfterData=0,unusedBits=0,numberOfValues;
grib_accessor_number_of_coded_values* self = (grib_accessor_number_of_coded_values*)a;
if((ret = grib_get_long_internal(a->parent->h, self->bitsPerValue,&bpv)) != GRIB_SUCCESS)
return ret;
if((ret = grib_get_long_internal(a->parent->h, self->offsetBeforeData,&offsetBeforeData)) != GRIB_SUCCESS)
return ret;
if((ret = grib_get_long_internal(a->parent->h, self->offsetAfterData,&offsetAfterData)) != GRIB_SUCCESS)
return ret;
if((ret = grib_get_long_internal(a->parent->h, self->unusedBits,&unusedBits)) != GRIB_SUCCESS)
return ret;
if ( bpv != 0 ) {
grib_context_log(a->parent->h->context,GRIB_LOG_DEBUG,"grib_accessor_number_of_coded_values: offsetAfterData=%ld offsetBeforeData=%ld unusedBits=%ld bpv=%ld\n",
offsetAfterData,offsetBeforeData,unusedBits,bpv);
*val=((offsetAfterData-offsetBeforeData)*8-unusedBits)/bpv;
} else {
if((ret = grib_get_long_internal(a->parent->h, self->numberOfValues,&numberOfValues)) != GRIB_SUCCESS)
return ret;
*val=numberOfValues;
}
return ret;
}
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