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eccodes/src/grib_accessor_class_values.c

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/*
* Copyright 2005-2018 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 = init
IMPLEMENTS = dump
IMPLEMENTS = next_offset
IMPLEMENTS = byte_count
IMPLEMENTS = byte_offset
IMPLEMENTS = get_native_type
IMPLEMENTS = update_size
IMPLEMENTS = compare
IMPLEMENTS = pack_long
MEMBERS= int carg
MEMBERS= const char* seclen
MEMBERS= const char* offsetdata
MEMBERS= const char* offsetsection
MEMBERS= int dirty
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 long byte_count(grib_accessor*);
static long byte_offset(grib_accessor*);
static long next_offset(grib_accessor*);
static void dump(grib_accessor*, grib_dumper*);
static void init(grib_accessor*,const long, grib_arguments* );
static void init_class(grib_accessor_class*);
static void update_size(grib_accessor*,size_t);
static int compare(grib_accessor*, grib_accessor*);
typedef struct grib_accessor_values {
grib_accessor att;
/* Members defined in gen */
/* Members defined in values */
int carg;
const char* seclen;
const char* offsetdata;
const char* offsetsection;
int dirty;
} grib_accessor_values;
extern grib_accessor_class* grib_accessor_class_gen;
static grib_accessor_class _grib_accessor_class_values = {
&grib_accessor_class_gen, /* super */
"values", /* name */
sizeof(grib_accessor_values), /* size */
0, /* inited */
&init_class, /* init_class */
&init, /* init */
0, /* post_init */
0, /* free mem */
&dump, /* describes himself */
&next_offset, /* get length of section */
0, /* get length of string */
0, /* get number of values */
&byte_count, /* get number of bytes */
&byte_offset, /* get offset to bytes */
&get_native_type, /* get native type */
0, /* get sub_section */
0, /* grib_pack procedures long */
0, /* grib_pack procedures long */
&pack_long, /* grib_pack procedures long */
0, /* 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 array procedures string */
0, /* grib_unpack array procedures string */
0, /* grib_pack procedures bytes */
0, /* grib_unpack procedures bytes */
0, /* pack_expression */
0, /* notify_change */
&update_size, /* update_size */
0, /* preferred_size */
0, /* resize */
0, /* nearest_smaller_value */
0, /* next accessor */
&compare, /* compare vs. another accessor */
0, /* unpack only ith value */
0, /* unpack a subarray */
0, /* clear */
0, /* clone accessor */
};
grib_accessor_class* grib_accessor_class_values = &_grib_accessor_class_values;
static void init_class(grib_accessor_class* c)
{
c->string_length = (*(c->super))->string_length;
c->value_count = (*(c->super))->value_count;
c->sub_section = (*(c->super))->sub_section;
c->pack_missing = (*(c->super))->pack_missing;
c->is_missing = (*(c->super))->is_missing;
c->unpack_long = (*(c->super))->unpack_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_string_array = (*(c->super))->pack_string_array;
c->unpack_string_array = (*(c->super))->unpack_string_array;
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->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->unpack_double_element = (*(c->super))->unpack_double_element;
c->unpack_double_subarray = (*(c->super))->unpack_double_subarray;
c->clear = (*(c->super))->clear;
c->make_clone = (*(c->super))->make_clone;
}
/* END_CLASS_IMP */
static long init_length(grib_accessor* a)
{
grib_accessor_values* self = (grib_accessor_values*)a;
int ret = 0;
long seclen = 0;
long offsetsection = 0;
long offsetdata = 0;
if((ret = grib_get_long_internal(grib_handle_of_accessor(a), self->seclen,&seclen)))
return ret;
if(seclen == 0)
{
/* printf("init_length seclen=0\n"); */
return 0;
}
if((ret = grib_get_long_internal(grib_handle_of_accessor(a), self->offsetsection,&offsetsection)))
return ret;
if((ret = grib_get_long_internal(grib_handle_of_accessor(a), self->offsetdata,&offsetdata)))
return ret;
/* When reparsing */
if(offsetdata < offsetsection)
{
/* printf("init_length offsetdata < offsetsection=0\n"); */
Assert(grib_handle_of_accessor(a)->loader);
return 0;
}
return seclen-(offsetdata-offsetsection);
}
static void init(grib_accessor* a,const long v, grib_arguments* params)
{
grib_accessor_values *self =(grib_accessor_values*)a;
self->carg = 0;
self->seclen = grib_arguments_get_name(grib_handle_of_accessor(a),params,self->carg++);
self->offsetdata = grib_arguments_get_name(grib_handle_of_accessor(a),params,self->carg++);
self->offsetsection = grib_arguments_get_name(grib_handle_of_accessor(a),params,self->carg++);
self->dirty =1;
a->length = init_length(a);
/* Assert(a->length>=0); */
}
static int get_native_type(grib_accessor* a){
return GRIB_TYPE_DOUBLE;
}
static void dump(grib_accessor* a, grib_dumper* dumper)
{
grib_dump_values(dumper,a);
}
static long byte_count(grib_accessor* a){
grib_context_log(a->context,GRIB_LOG_DEBUG,"byte_count of %s = %ld",a->name,a->length);
return a->length;
}
static long byte_offset(grib_accessor* a){
return a->offset;
}
static long next_offset(grib_accessor* a){
return a->offset+a->length;
}
static void update_size(grib_accessor* a,size_t s)
{
grib_context_log(a->context,GRIB_LOG_DEBUG,"updating size of %s old %ld new %ld",a->name,a->length,s);
a->length = s;
Assert(a->length>=0);
}
static int compare(grib_accessor* a, grib_accessor* b) {
int retval=0;
double *aval=0;
double *bval=0;
size_t alen = 0;
size_t blen = 0;
int err=0;
long count=0;
err=grib_value_count(a,&count);
if (err) return err;
alen=count;
err=grib_value_count(b,&count);
if (err) return err;
blen=count;
if (alen != blen) return GRIB_COUNT_MISMATCH;
aval=(double*)grib_context_malloc(a->context,alen*sizeof(double));
bval=(double*)grib_context_malloc(b->context,blen*sizeof(double));
grib_unpack_double(a,aval,&alen);
grib_unpack_double(b,bval,&blen);
retval = GRIB_SUCCESS;
while (alen != 0) {
if (*bval != *aval) retval = GRIB_DOUBLE_VALUE_MISMATCH;
alen--;
}
grib_context_free(a->context,aval);
grib_context_free(b->context,bval);
return retval;
}
static int pack_long(grib_accessor* a, const long* val, size_t *len)
{
int ret=0;
grib_accessor_values *self =(grib_accessor_values*)a;
int i;
double* dval=(double*)grib_context_malloc(a->context,*len*sizeof(double));
for (i=0;i<*len;i++) dval[i]=(double)val[i];
ret=grib_pack_double(a,dval,len);
grib_context_free(a->context,dval);
self->dirty=1;
return ret;
}
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