mirror of https://github.com/ecmwf/eccodes.git
244 lines
9.0 KiB
C
244 lines
9.0 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_unsigned
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IMPLEMENTS = init;dump
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IMPLEMENTS = value_count
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MEMBERS = const char* tablename
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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 int value_count(grib_accessor*, long*);
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static void dump(grib_accessor*, grib_dumper*);
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static void init(grib_accessor*, const long, grib_arguments*);
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static void init_class(grib_accessor_class*);
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typedef struct grib_accessor_codeflag
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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 long */
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/* Members defined in unsigned */
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long nbytes;
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grib_arguments* arg;
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/* Members defined in codeflag */
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const char* tablename;
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} grib_accessor_codeflag;
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extern grib_accessor_class* grib_accessor_class_unsigned;
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static grib_accessor_class _grib_accessor_class_codeflag = {
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&grib_accessor_class_unsigned, /* super */
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"codeflag", /* name */
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sizeof(grib_accessor_codeflag), /* size */
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0, /* inited */
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&init_class, /* init_class */
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&init, /* init */
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0, /* post_init */
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0, /* free mem */
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&dump, /* describes himself */
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0, /* get length of section */
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0, /* get length of string */
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&value_count, /* 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, /* grib_pack procedures long */
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0, /* grib_pack procedures long */
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0, /* grib_pack procedures long */
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0, /* grib_unpack procedures long */
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0, /* grib_pack procedures double */
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0, /* grib_unpack procedures double */
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0, /* grib_pack procedures string */
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0, /* grib_unpack procedures string */
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0, /* grib_pack array procedures string */
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0, /* grib_unpack array procedures string */
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0, /* grib_pack procedures bytes */
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0, /* grib_unpack procedures 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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0, /* 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 */
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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_codeflag = &_grib_accessor_class_codeflag;
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static void init_class(grib_accessor_class* c)
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{
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c->next_offset = (*(c->super))->next_offset;
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c->string_length = (*(c->super))->string_length;
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c->byte_count = (*(c->super))->byte_count;
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c->byte_offset = (*(c->super))->byte_offset;
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c->get_native_type = (*(c->super))->get_native_type;
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c->sub_section = (*(c->super))->sub_section;
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c->pack_missing = (*(c->super))->pack_missing;
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c->is_missing = (*(c->super))->is_missing;
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c->pack_long = (*(c->super))->pack_long;
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c->unpack_long = (*(c->super))->unpack_long;
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c->pack_double = (*(c->super))->pack_double;
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c->unpack_double = (*(c->super))->unpack_double;
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c->pack_string = (*(c->super))->pack_string;
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c->unpack_string = (*(c->super))->unpack_string;
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c->pack_string_array = (*(c->super))->pack_string_array;
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c->unpack_string_array = (*(c->super))->unpack_string_array;
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c->pack_bytes = (*(c->super))->pack_bytes;
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c->unpack_bytes = (*(c->super))->unpack_bytes;
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c->pack_expression = (*(c->super))->pack_expression;
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c->notify_change = (*(c->super))->notify_change;
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c->update_size = (*(c->super))->update_size;
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c->preferred_size = (*(c->super))->preferred_size;
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c->resize = (*(c->super))->resize;
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c->nearest_smaller_value = (*(c->super))->nearest_smaller_value;
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c->next = (*(c->super))->next;
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c->compare = (*(c->super))->compare;
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c->unpack_double_element = (*(c->super))->unpack_double_element;
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c->unpack_double_subarray = (*(c->super))->unpack_double_subarray;
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c->clear = (*(c->super))->clear;
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c->make_clone = (*(c->super))->make_clone;
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}
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/* END_CLASS_IMP */
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static void init(grib_accessor* a, const long len, grib_arguments* param)
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{
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grib_accessor_codeflag* self = (grib_accessor_codeflag*)a;
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a->length = len;
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self->tablename = grib_arguments_get_string(grib_handle_of_accessor(a), param, 0);
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Assert(a->length >= 0);
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}
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static int test_bit(long a, long b)
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{
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return a & (1 << b);
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}
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static int grib_get_codeflag(grib_accessor* a, long code, char* codename)
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{
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grib_accessor_codeflag* self = (grib_accessor_codeflag*)a;
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FILE* f = NULL;
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char fname[1024];
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char bval[50];
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char num[50];
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char* filename = 0;
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char line[1024];
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size_t i = 0;
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int j = 0;
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grib_recompose_name(grib_handle_of_accessor(a), NULL, self->tablename, fname, 1);
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if ((filename = grib_context_full_defs_path(a->context, fname)) == NULL) {
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grib_context_log(a->context, GRIB_LOG_WARNING, "Cannot open flag table %s", filename);
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strcpy(codename, "Cannot open flag table");
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return GRIB_FILE_NOT_FOUND;
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}
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f = codes_fopen(filename, "r");
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if (!f) {
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grib_context_log(a->context, (GRIB_LOG_WARNING) | (GRIB_LOG_PERROR), "Cannot open flag table %s", filename);
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strcpy(codename, "Cannot open flag table");
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return GRIB_FILE_NOT_FOUND;
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}
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#if 0
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strcpy(codename, self->tablename);
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strcat(codename,": ");
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j = strlen(codename);
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#endif
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while (fgets(line, sizeof(line) - 1, f)) {
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sscanf(line, "%49s %49s", num, bval);
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if (num[0] != '#') {
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if ((test_bit(code, a->length * 8 - atol(num)) > 0) == atol(bval)) {
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size_t linelen = strlen(line);
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codename[j++] = '(';
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codename[j++] = num[0];
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codename[j++] = '=';
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codename[j++] = bval[0];
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codename[j++] = ')';
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codename[j++] = ' ';
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if (j)
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codename[j++] = ' ';
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for (i = (strlen(num) + strlen(bval) + 2); i < linelen - 1; i++)
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codename[j++] = line[i];
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if (line[i] != '\n')
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codename[j++] = line[i];
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codename[j++] = ';';
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}
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}
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}
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if (j > 1 && codename[j - 1] == ';')
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j--;
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codename[j] = 0;
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strcat(codename, ":");
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strcat(codename, self->tablename);
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fclose(f);
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return GRIB_SUCCESS;
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}
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static int value_count(grib_accessor* a, long* count)
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{
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*count = 1;
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return 0;
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}
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static void dump(grib_accessor* a, grib_dumper* dumper)
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{
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grib_accessor_codeflag* self = (grib_accessor_codeflag*)a;
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long v;
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char flagname[1024];
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char fname[1024];
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size_t llen = 1;
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grib_recompose_name(grib_handle_of_accessor(a), NULL, self->tablename, fname, 1);
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grib_unpack_long(a, &v, &llen);
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grib_get_codeflag(a, v, flagname);
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grib_dump_bits(dumper, a, flagname);
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}
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