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102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/*
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* Copyright 1996, University Corporation for Atmospheric Research
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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*/
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#ifndef _NC_H_
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#define _NC_H_
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#include "config.h"
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#include "netcdf.h"
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/* There's an external ncid (ext_ncid) and an internal ncid
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* (int_ncid). The ext_ncid is the ncid returned to the user. If
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* the user has opened or created a netcdf-4 file, then the
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* ext_ncid is the same as the int_ncid. If he has opened or
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* created a netcdf-3 file ext_ncid (which the user sees) is
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* different from the int_ncid, which is the ncid returned by the
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* netcdf-3 layer, which insists on inventing its own ncids,
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* regardless of what is already in use due to previously opened
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* netcdf-4 files. The ext_ncid contains the ncid for the root
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* group (i.e. group zero). */
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/* Common Shared Structure for all Dispatched Objects */
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typedef struct NC {
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int ext_ncid;
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int int_ncid;
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struct NC_Dispatch* dispatch;
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void* dispatchdata; /*per-'file' data; points to e.g. NC3_INFO data*/
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char* path;
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int mode; /* as provided to nc_open/nc_create */
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#ifdef USE_REFCOUNT
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int refcount; /* To enable multiple name-based opens */
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#endif
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} NC;
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/*
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* Counted string for names and such
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*/
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typedef struct {
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/* all xdr'd */
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size_t nchars;
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#ifdef __arm__
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signed char *cp;
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#else
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char *cp;
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#endif
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} NC_string;
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/* Define functions that are used across multiple dispatchers */
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/* Begin defined in string.c */
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extern void
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free_NC_string(NC_string *ncstrp);
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extern int
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NC_check_name(const char *name);
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#ifdef __arm__
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extern NC_string *
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new_NC_string(size_t slen, const signed char *str);
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extern int
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set_NC_string(NC_string *ncstrp, const signed char *str);
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#else
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extern NC_string *
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new_NC_string(size_t slen, const char *str);
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extern int
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set_NC_string(NC_string *ncstrp, const char *str);
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#endif
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/* End defined in string.c */
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extern int
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NC_check_id(int ncid, NC **ncpp);
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/* Create a pseudo file descriptor that does not
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overlap real file descriptors */
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extern int nc__pseudofd(void);
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/* This function sets a default create flag that will be logically
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or'd to whatever flags are passed into nc_create for all future
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calls to nc_create.
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Valid default create flags are NC_64BIT_OFFSET, NC_CLOBBER,
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NC_LOCK, NC_SHARE. */
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extern int nc_set_default_format(int format, int *old_formatp);
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/* This function gets a current default create flag */
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extern int nc_get_default_format(void);
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extern int add_to_NCList(NC*);
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extern void del_from_NCList(NC*);/* does not free object */
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extern NC* find_in_NCList(int ext_ncid);
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extern NC* find_in_NCList_by_name(const char*);
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extern void free_NCList(void);/* reclaim whole list */
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extern int count_NCList(void); /* return # of entries in NClist */
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/* Defined in nc.c */
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extern void free_NC(NC*);
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extern int new_NC(struct NC_Dispatch*, const char*, int, NC**);
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#endif /* _NC_H_ */
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