/** * 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_padding IMPLEMENTS = init;preferred_size MEMBERS=grib_expression* begin MEMBERS=grib_expression* multiple 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 void init(grib_accessor*,const long, grib_arguments* ); static void init_class(grib_accessor_class*); static size_t preferred_size(grib_accessor*,int); typedef struct grib_accessor_padtomultiple { grib_accessor att; /* Members defined in gen */ /* Members defined in bytes */ /* Members defined in padding */ /* Members defined in padtomultiple */ grib_expression* begin; grib_expression* multiple; } grib_accessor_padtomultiple; extern grib_accessor_class* grib_accessor_class_padding; static grib_accessor_class _grib_accessor_class_padtomultiple = { &grib_accessor_class_padding, /* super */ "padtomultiple", /* name */ sizeof(grib_accessor_padtomultiple), /* 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 */ 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 procedures bytes */ 0, /* grib_unpack procedures bytes */ 0, /* pack_expression */ 0, /* notify_change */ 0, /* update_size */ &preferred_size, /* preferred_size */ 0, /* resize */ 0, /* nearest_smaller_value */ 0, /* next accessor */ 0, /* compare vs. another accessor */ 0, /* unpack only ith value */ 0, /* unpack a subarray */ 0, /* clear */ }; grib_accessor_class* grib_accessor_class_padtomultiple = &_grib_accessor_class_padtomultiple; 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->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_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->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->unpack_double_subarray = (*(c->super))->unpack_double_subarray; c->clear = (*(c->super))->clear; } /* END_CLASS_IMP */ static size_t preferred_size(grib_accessor* a,int from_handle) { grib_accessor_padtomultiple* self = (grib_accessor_padtomultiple*)a; long padding=0; long begin = 0; long multiple = 0; grib_expression_evaluate_long(a->parent->h,self->begin,&begin); grib_expression_evaluate_long(a->parent->h,self->multiple,&multiple); padding = a->offset - begin; padding = ((padding + multiple - 1)/multiple)*multiple - padding; return padding == 0 ? multiple : padding; } static void init(grib_accessor* a, const long len, grib_arguments *arg ) { grib_accessor_padtomultiple* self = (grib_accessor_padtomultiple*)a; self->begin = grib_arguments_get_expression(a->parent->h, arg,0); self->multiple = grib_arguments_get_expression(a->parent->h, arg,1); a->length = preferred_size(a,1); }