216 lines
7.4 KiB
C
216 lines
7.4 KiB
C
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
||
|
|
* Copyright by The HDF Group. *
|
||
|
|
* Copyright by the Board of Trustees of the University of Illinois. *
|
||
|
|
* All rights reserved. *
|
||
|
|
* *
|
||
|
|
* This file is part of HDF. The full HDF copyright notice, including *
|
||
|
|
* terms governing use, modification, and redistribution, is contained in *
|
||
|
|
* the COPYING file, which can be found at the root of the source code *
|
||
|
|
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF/releases/. *
|
||
|
|
* If you do not have access to either file, you may request a copy from *
|
||
|
|
* help@hdfgroup.org. *
|
||
|
|
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
|
||
|
|
|
||
|
|
/* $Id$ */
|
||
|
|
|
||
|
|
/*-----------------------------------------------------------------------------
|
||
|
|
* File: df.h
|
||
|
|
* Purpose: header file for HDF routines
|
||
|
|
* Invokes: dfi.h
|
||
|
|
* Contents:
|
||
|
|
* Structure definitions: DFddh, DFdd, DFdesc, DFdle, DF, DFdi, DFdata
|
||
|
|
* Procedure type definitions
|
||
|
|
* Global variables
|
||
|
|
* Tag definitions
|
||
|
|
* Error return codes
|
||
|
|
* Logical constants
|
||
|
|
* Remarks: This file is included with user programs
|
||
|
|
* Since it includes stdio.h etc., do not include these after df.h
|
||
|
|
*---------------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
#ifndef DF_H /* avoid re-inclusion */
|
||
|
|
#define DF_H
|
||
|
|
|
||
|
|
#include "H4api_adpt.h"
|
||
|
|
|
||
|
|
/* include DF (internal) header information */
|
||
|
|
#include "hdf.h"
|
||
|
|
|
||
|
|
/*-------------------------------------------------------------------------*/
|
||
|
|
/* Type declarations */
|
||
|
|
|
||
|
|
typedef struct DFddh
|
||
|
|
{ /*format of data descriptor headers in file */
|
||
|
|
int16 dds; /* number of dds in header block */
|
||
|
|
int32 next; /* offset of next header block */
|
||
|
|
}
|
||
|
|
DFddh;
|
||
|
|
|
||
|
|
typedef struct DFdd
|
||
|
|
{ /* format of data descriptors as in file */
|
||
|
|
uint16 tag; /* data tag */
|
||
|
|
uint16 ref; /* data reference number */
|
||
|
|
int32 offset; /* offset of data element in file */
|
||
|
|
int32 length; /* number of bytes */
|
||
|
|
}
|
||
|
|
DFdd;
|
||
|
|
|
||
|
|
/* descriptor structure is same as dd structure. ###Note: may be changed */
|
||
|
|
typedef DFdd DFdesc;
|
||
|
|
|
||
|
|
/* DLE is the internal structure which stores data descriptor information */
|
||
|
|
/* It is a linked list of DDs */
|
||
|
|
typedef struct DFdle
|
||
|
|
{ /* Data List element */
|
||
|
|
struct DFdle *next; /* link to next dle */
|
||
|
|
DFddh ddh; /* To store headers */
|
||
|
|
DFdd dd[1]; /* dummy size */
|
||
|
|
}
|
||
|
|
DFdle;
|
||
|
|
|
||
|
|
/* DF is the internal structure associated with each DF file */
|
||
|
|
/* It holds information associated with the file as a whole */
|
||
|
|
/* ### Note: there are hooks for having multiple DF files open at a time */
|
||
|
|
typedef struct DF
|
||
|
|
{
|
||
|
|
DFdle *list; /* Pointer to the DLE list */
|
||
|
|
DFdle *last_dle; /* last_dle and last_dd are used in searches */
|
||
|
|
/* to indicate element returned */
|
||
|
|
/* by previous call to DFfind */
|
||
|
|
DFdd *up_dd; /* DD of element being read/updated, */
|
||
|
|
/* used by DFstart */
|
||
|
|
uint16 last_tag; /* Last tag searched for by DFfind */
|
||
|
|
uint16 last_ref; /* Last reference number searched for */
|
||
|
|
intn type; /* 0= not in use, 1= normal, -1 = multiple */
|
||
|
|
/* this is a hook for when */
|
||
|
|
/* multiple files are open */
|
||
|
|
intn access; /* permitted access types: */
|
||
|
|
/* 0=none, 1=r, 2=w, 3=r/w */
|
||
|
|
intn changed; /* True if anything in DDs modified */
|
||
|
|
/* since last write */
|
||
|
|
intn last_dd; /* see last_dle */
|
||
|
|
intn defdds; /* default numer of DD's in each block */
|
||
|
|
intn up_access; /* access permissions to element being */
|
||
|
|
/* read/updated. Used by DFstart */
|
||
|
|
/* File handle is a file pointer or file descriptor depending on whether */
|
||
|
|
/* we use buffered or unbuffered I/O. But, since this structure is a */
|
||
|
|
/* fake, it doesn't matter whether I/O is buffered or not. */
|
||
|
|
intn file; /* file descriptor */
|
||
|
|
}
|
||
|
|
DF;
|
||
|
|
|
||
|
|
typedef struct DFdata
|
||
|
|
{ /* structure for returning status information */
|
||
|
|
int32 version; /* version number of program */
|
||
|
|
}
|
||
|
|
DFdata;
|
||
|
|
|
||
|
|
/*--------------------------------------------------------------------------*/
|
||
|
|
/* Procedure types */
|
||
|
|
|
||
|
|
#if defined c_plusplus || defined __cplusplus
|
||
|
|
extern "C"
|
||
|
|
{
|
||
|
|
#endif /* c_plusplus || __cplusplus */
|
||
|
|
|
||
|
|
/* prototypes for dfstubs.c */
|
||
|
|
HDFLIBAPI DF *DFopen
|
||
|
|
(char *name, int acc_mode, int ndds);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFclose
|
||
|
|
(DF * dfile);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFdescriptors
|
||
|
|
(DF * dfile, DFdesc ptr[], int begin, int num);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFnumber
|
||
|
|
(DF * dfile, uint16 tag);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFsetfind
|
||
|
|
(DF * dfile, uint16 tag, uint16 ref);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFfind
|
||
|
|
(DF * dfile, DFdesc * ptr);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFaccess
|
||
|
|
(DF * dfile, uint16 tag, uint16 ref, char *acc_mode);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFstart
|
||
|
|
(DF * dfile, uint16 tag, uint16 ref, char *acc_mode);
|
||
|
|
|
||
|
|
HDFLIBAPI int32 DFread
|
||
|
|
(DF * dfile, char *ptr, int32 len);
|
||
|
|
|
||
|
|
HDFLIBAPI int32 DFseek
|
||
|
|
(DF * dfile, int32 offset);
|
||
|
|
|
||
|
|
HDFLIBAPI int32 DFwrite
|
||
|
|
(DF * dfile, char *ptr, int32 len);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFupdate
|
||
|
|
(DF * dfile);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFstat
|
||
|
|
(DF * dfile, DFdata * dfinfo);
|
||
|
|
|
||
|
|
HDFLIBAPI int32 DFgetelement
|
||
|
|
(DF * dfile, uint16 tag, uint16 ref, char *ptr);
|
||
|
|
|
||
|
|
HDFLIBAPI int32 DFputelement
|
||
|
|
(DF * dfile, uint16 tag, uint16 ref, char *ptr, int32 len);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFdup
|
||
|
|
(DF * dfile, uint16 itag, uint16 iref, uint16 otag, uint16 oref);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFdel
|
||
|
|
(DF * dfile, uint16 tag, uint16 ref);
|
||
|
|
|
||
|
|
HDFLIBAPI uint16 DFnewref
|
||
|
|
(DF * dfile);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFishdf
|
||
|
|
(char *filename);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFerrno
|
||
|
|
(void);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFIerr
|
||
|
|
(DF * dfile);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFImemcopy
|
||
|
|
(char *from, char *to, int length);
|
||
|
|
|
||
|
|
HDFLIBAPI void *DFIgetspace
|
||
|
|
(uint32 qty);
|
||
|
|
|
||
|
|
HDFLIBAPI void *DFIfreespace
|
||
|
|
(void *ptr);
|
||
|
|
|
||
|
|
HDFLIBAPI int DFIc2fstr
|
||
|
|
(char *str, int len);
|
||
|
|
|
||
|
|
HDFLIBAPI char *DFIf2cstring
|
||
|
|
(_fcd fdesc, intn len);
|
||
|
|
|
||
|
|
/* prototypes for dfconv.c */
|
||
|
|
HDFLIBAPI int DFconvert
|
||
|
|
(uint8 *source, uint8 *dest, int ntype, int sourcetype, int desttype, int32 size);
|
||
|
|
|
||
|
|
#if defined c_plusplus || defined __cplusplus
|
||
|
|
}
|
||
|
|
#endif /* c_plusplus || __cplusplus */
|
||
|
|
|
||
|
|
/*--------------------------------------------------------------------------*/
|
||
|
|
/* Global Variables */
|
||
|
|
|
||
|
|
#ifndef DFMASTER
|
||
|
|
HDFLIBAPI
|
||
|
|
#endif /*DFMASTER */
|
||
|
|
int DFerror; /* Error code for DF routines */
|
||
|
|
|
||
|
|
#define DFSETERR(error) (DFerror=(DFerror?DFerror:error))
|
||
|
|
|
||
|
|
#define DFTOFID(df) (int32)(df->list)
|
||
|
|
|
||
|
|
#endif /* DF_H */
|