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11a259ad86
This consists of a persistent attribute named _NCProperties plus two computed attributes _IsNetcdf4 and _SuperblockVersion. See the 'Provenance Attributes' section of docs/attribute_conventions.md for details.
222 lines
6.8 KiB
C
222 lines
6.8 KiB
C
#ifndef NC_NCGEN_H
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#define NC_NCGEN_H
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/*********************************************************************
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* Copyright 1993, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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* $Header: /upc/share/CVS/netcdf-3/ncgen/ncgen.h,v 1.18 2010/06/01 15:34:53 ed Exp $
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*********************************************************************/
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#ifdef _MSC_VER
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#include <float.h>
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#include "../ncdump/isnan.h"
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#define strcasecmp _stricmp
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#endif
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#ifdef USE_NETCDF4
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#define CLASSICONLY 0
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#else
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#define CLASSICONLY 1
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#endif
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#define MAX_NC_ATTSIZE 20000 /* max size of attribute (for ncgen) */
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#define MAXTRST 5000 /* max size of string value (for ncgen) */
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/* Define the possible classes of objects*/
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/* extend the NC_XXX values*/
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#define NC_GRP 100
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#define NC_DIM 101
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#define NC_VAR 102
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#define NC_ATT 103
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#define NC_TYPE 104
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#define NC_ECONST 105
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#define NC_FIELD 106
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#define NC_ARRAY 107
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#define NC_PRIM 108 /*Including NC_STRING */
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#define NC_STRUCT NC_COMPOUND /* alias */
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#define NC_LIST NC_COMPOUND /* alias */
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/* Extend nc types with generic fill value*/
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#define NC_FILLVALUE 31
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/* Extend nc types with NIL value*/
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#define NC_NIL 32
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/* Must be a better way to do this */
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#ifndef INFINITE
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#ifdef _MSC_VER
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#define NC_INFINITE (DBL_MAX+DBL_MAX)
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#define NC_INFINITEF NC_INFINITE
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#define NAN (NC_INFINITE-NC_INFINITE)
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#define NANF NAN
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#else
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#define NC_INFINITE (1.0/0.0)
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#define NC_INFINITEF (1.0f/0.0f)
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#define NAN (0.0/0.0)
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#define NANF (0.0f/0.0f)
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#endif
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#define NEGNC_INFINITEF (-NC_INFINITEF)
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#define NEGNC_INFINITE (-NC_INFINITEF)
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#endif
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/* nc_class is one of:
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NC_GRP NC_DIM NC_VAR NC_ATT NC_TYPE
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*/
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typedef nc_type nc_class;
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/* nc_subclass is one of:
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NC_PRIM NC_OPAQUE NC_ENUM
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NC_FIELD NC_VLEN NC_COMPOUND
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NC_ECONST NC_ARRAY NC_FILLVALUE
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*/
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typedef nc_type nc_subclass;
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/*
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Define data structure
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xto hold special attribute values
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for a given variable.
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Global values are kept as
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various C global variables
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*/
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/* Define a bit set for indicating which*/
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/* specials were explicitly specified*/
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/* See also: ncgen.y.tag2name */
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#define _STORAGE_FLAG 0x001
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#define _CHUNKSIZES_FLAG 0x002
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#define _FLETCHER32_FLAG 0x004
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#define _DEFLATE_FLAG 0x008
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#define _SHUFFLE_FLAG 0x010
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#define _ENDIAN_FLAG 0x020
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#define _NOFILL_FLAG 0x040
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#define _FILLVALUE_FLAG 0x080
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#define _NCPROPS_FLAG 0x100
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#define _ISNETCDF4_FLAG 0x200
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#define _SUPERBLOCK_FLAG 0x400
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#define _FORMAT_FLAG 0x800
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extern struct Specialtoken {
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char* name;
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int token;
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int tag;
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} specials[];
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/* Define an enumeration of supported languages */
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typedef enum Language {
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L_UNDEFINED=0,
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L_BINARY=1,
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L_C=2,
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L_F77=3,
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L_JAVA=4
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} Language;
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struct Kvalues {
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char* name;
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int k_flag;
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};
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#define NKVALUES 100
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extern struct Kvalues legalkinds[NKVALUES];
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/* Note: some non-var specials (i.e. _Format) are not included in this struct*/
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typedef struct Specialdata {
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int flags;
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Datalist* _Fillvalue; /* This is a per-type */
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int _Storage; /* NC_CHUNKED | NC_CONTIGUOUS*/
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size_t* _ChunkSizes; /* NULL => defaults*/
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int nchunks; /* |_Chunksize| ; 0 => not specified*/
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int _Fletcher32; /* 1=>fletcher32*/
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int _DeflateLevel; /* 0-9 => level*/
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int _Shuffle; /* 0 => false, 1 => true*/
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int _Endianness; /* 1 =>little, 2 => big*/
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int _Fill ; /* 0 => false, 1 => true WATCHOUT: this is inverse of NOFILL*/
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} Specialdata;
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typedef struct GlobalSpecialdata {
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int _Format ; /* kflag */
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const char* _NCProperties ;
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int _IsNetcdf4 ; /* 0 => false, 1 => true */
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int _Superblock ; /* HDF5 file superblock version */
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} GlobalSpecialData;
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/* Track a set of dimensions*/
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/* (Note: the netcdf type system is deficient here)*/
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typedef struct Dimset {
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int ndims;
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struct Symbol* dimsyms[NC_MAX_VAR_DIMS]; /* Symbol for dimension*/
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} Dimset;
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typedef struct Diminfo {
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int isconstant; /* separate constant from named dimension*/
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int isunlimited;
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size_t declsize; /* 0 => unlimited/unspecified*/
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} Diminfo;
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typedef struct Attrinfo {
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struct Symbol* var; /* NULL => global*/
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} Attrinfo;
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typedef struct Typeinfo {
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struct Symbol* basetype;
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int hasvlen; /* 1 => this type contains a vlen*/
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nc_type typecode;
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unsigned long offset; /* fields in struct*/
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unsigned long alignment;/* fields in struct*/
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NCConstant econst; /* for enum values*/
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Dimset dimset; /* for NC_VAR/NC_FIELD/NC_ATT*/
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size_t size; /* for opaque, compound, etc.*/
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size_t nelems; /* size in terms of # of datalist constants
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it takes to represent it */
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Datalist* _Fillvalue; /* per-type cached fillvalue
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(overridden by var fillvalue) */
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} Typeinfo;
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typedef struct Varinfo {
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int nattributes; /* |attributes|*/
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List* attributes; /* List<Symbol*>*/
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Specialdata special;
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} Varinfo;
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typedef struct Groupinfo {
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int is_root;
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} Groupinfo;
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/* store info when the symbol
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is really a reference to another
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symbol
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*/
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typedef struct Reference {
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int is_ref; /* separate name defs from refs*/
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char* unescaped; /* original, unescaped name */
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struct Symbol* ref; /* ptr to the symbol if is_ref is true*/
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} Reference;
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typedef struct Symbol { /* symbol table entry*/
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struct Symbol* next; /* Linked list of all defined symbols*/
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nc_class objectclass; /* NC_DIM|NC_VLEN|NC_OPAQUE...*/
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nc_class subclass; /* NC_STRUCT|...*/
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char* name;
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char* fqn; /* cached fully qualified C or FORTRAN name*/
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struct Symbol* container; /* The group containing this symbol.*/
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/* for fields or enumids, it is*/
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/* the parent type.*/
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struct Symbol* location; /* current group when symbol was created*/
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List* subnodes; /* sublist for enum or struct or group*/
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int is_prefixed; /* prefix was specified (vs computed).*/
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List* prefix; /* List<Symbol*>*/
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struct Datalist* data; /* shared by variables and attributes*/
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/* Note that we cannot union these because some kinds of symbols*/
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/* use more than one part*/
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Typeinfo typ; /* type info for e.g. var, att, etc.*/
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Varinfo var;
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Attrinfo att;
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Diminfo dim;
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Groupinfo grp;
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Reference ref; /* symbol is really a referene to another symbol*/
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/* Misc pieces of info*/
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int lineno; /* at point of creation*/
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int touched; /* for sorting*/
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int ncid; /* from netcdf API: varid, or dimid, or etc.*/
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} Symbol;
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#endif /*!NC_NCGEN_H*/
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