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/****************************************************************************
* NCSA HDF *
* Software Development Group *
* National Center for Supercomputing Applications *
* University of Illinois at Urbana-Champaign *
* 605 E. Springfield, Champaign IL 61820 *
* *
* For conditions of distribution and use, see the accompanying *
* hdf/COPYING file. *
* *
****************************************************************************/
/* $Id$ */
/*
* This file contains portability macros to ease moving the library between
* the various platforms.
*/
#ifndef HDF5PORT_H
#define HDF5PORT_H
/**************************************************************************
* Generally useful macro definitions
**************************************************************************/
#ifndef MIN
#define MIN(a,b) (((a)<(b)) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a,b) (((a)>(b)) ? (a) : (b))
#endif
/**************************************************************************
* Macros to work around ANSI C portability problems.
**************************************************************************/
#ifdef DUMBCC
#define CONSTR(v,s) char *v=s
#else
#define CONSTR(v,s) static const char v[]=s
#endif
/* -------------------------- File I/O Functions -------------------------- */
/* FILELIB -- file library to use for file access: 1 stdio, 2 fcntl
default to stdio library i.e. POSIX buffered I/O */
#ifndef FILELIB
# define FILELIB POSIXBUFIO /* POSIX buffered I/O is the default */
#endif /* FILELIB */
#if (FILELIB == POSIXBUFIO)
typedef FILE *hdf_file_t;
#ifdef VMS
/* For VMS, use "mbc=64" to improve performance */
# define H5FI_OPEN(p, a) (((a)&H5ACC_WRITE) ? fopen((p),"r+","mbc=64") : fopen((p), "r", "mbc=64"))
# define H5FI_CREATE(p) (fopen((p), "w+", "mbc=64"))
#else /* !VMS */
#if defined SUN && defined (__GNUC__)
# define H5FI_OPEN(p, a) (((a)&H5ACC_WRITE) ? fopen((p), "r+") : fopen((p), "r"))
# define H5FI_CREATE(p) (fopen((p), "w+"))
#else /* !SUN w/ GNU CC */
# define H5FI_OPEN(p, a) (((a)&H5ACC_WRITE) ? fopen((p), "rb+") : fopen((p), "rb"))
# define H5FI_CREATE(p) (fopen((p), "wb+"))
#endif /* !SUN w/ GNU CC */
#endif /* VMS */
# define H5FI_READ(f, b, n) (((size_t)(n) == (size_t)fread((b), 1, (size_t)(n), (f))) ? SUCCEED : FAIL)
# define H5FI_WRITE(f, b, n) (((size_t)(n) == (size_t)fwrite((b), 1, (size_t)(n), (f))) ? SUCCEED : FAIL)
# define H5FI_CLOSE(f) (fclose(f))
# define H5FI_FLUSH(f) (fflush(f)==0 ? SUCCEED : FAIL)
# define H5FI_SEEK(f,o) (fseek((f), (long)(o), SEEK_SET)==0 ? SUCCEED : FAIL)
# define H5FI_SEEK_CUR(f,o) (fseek((f), (long)(o), SEEK_CUR)==0 ? SUCCEED : FAIL)
# define H5FI_SEEKEND(f) (fseek((f), (long)0, SEEK_END)==0 ? SUCCEED : FAIL)
# define H5FI_TELL(f) (ftell(f))
# define H5FI_OPENERR(f) ((f) == (FILE *)NULL)
# define H5FI_INVALID_FILE ((FILE *)NULL)
#endif /* FILELIB == POSIXBUFIO */
#if (FILELIB == POSIXUNBUFIO)
/* using POSIX unbuffered file I/O routines to access files */
typedef int hdf_file_t;
# define H5FI_OPEN(p, a) (((a) & H5ACC_WRITE) ? open((p), O_RDWR) : open((p), O_RDONLY))
# define H5FI_CREATE(p) (open((p), O_RDWR | O_CREAT | O_TRUNC))
# define H5FI_CLOSE(f) (close(f))
# define H5FI_FLUSH(f) (SUCCEED)
# define H5FI_READ(f, b, n) (((n)==read((f), (char *)(b), (n))) ? SUCCEED : FAIL)
# define H5FI_WRITE(f, b, n) (((n)==write((f), (char *)(b), (n))) ? SUCCEED : FAIL)
# define H5FI_SEEK(f, o) (lseek((f), (off_t)(o), SEEK_SET)!=(-1) ? SUCCEED : FAIL)
# define H5FI_SEEKEND(f) (lseek((f), (off_t)0, SEEK_END)!=(-1) ? SUCCEED : FAIL)
# define H5FI_TELL(f) (lseek((f), (off_t)0, SEEK_CUR))
# define H5FI_OPENERR(f) (f < 0)
# define H5FI_INVALID_FILE ((int)-1)
#endif /* FILELIB == POSIXUNBUFIO */
#if (FILELIB == MACIO)
/* using special routines to redirect to Mac Toolkit I/O */
typedef short hdf_file_t;
# define H5FI_OPEN(x,y) mopen(x,y)
# define H5FI_CREATE(name) mopen(name, H5ACC_CREATE)
# define H5FI_CLOSE(x) mclose(x)
# define H5FI_FLUSH(a) (SUCCEED)
# define H5FI_READ(a,b,c) mread(a, (char *) b, (int32) c)
# define H5FI_WRITE(a,b,c) mwrite(a, (char *) b, (int32) c)
# define H5FI_SEEK(x,y) mlseek(x, (int32 )y, 0)
# define H5FI_SEEKEND(x) mlseek(x, 0L, 2)
# define H5FI_TELL(x) mlseek(x,0L,1)
# define H5FI_OPENERR(f) (f < 0)
# define H5FI_INVALID_FILE ((short)-1)
#endif /* FILELIB == MACIO */
#if (FILELIB == WINNTIO)
/* using special Windows NT functions to enable reading/writing large chunks */
typedef HFILE hdf_file_t;
# define H5FI_OPEN(p, a) (((a) & H5ACC_WRITE) ? _lopen((p), OF_READWRITE) : _lopen((p), OF_READ))
# define H5FI_CREATE(p) (_lcreat((p), 0))
# define H5FI_READ(f, b, n) (((int32)(n) == _hread((f), (b), (n))) ? SUCCEED : FAIL)
# define H5FI_WRITE(f, b, n) (((int32)(n) == _hwrite((f), (b), (n))) ? SUCCEED : FAIL)
# define H5FI_CLOSE(f) (_lclose(f)==0 ? SUCCEED : FAIL)
# define H5FI_FLUSH(f) (0)
# define H5FI_SEEK(f, o) (_llseek((f), (long)(o), 0))
# define H5FI_SEEKEND(f) (_llseek((f), (long)0, 2))
# define H5FI_TELL(f) (_llseek((f),0l,1))
# define H5FI_OPENERR(f) ((f) == (HFILE)HFILE_ERROR)
# define H5FI_INVALID_FILE ((HFILE)HFILE_ERROR)
#endif /* FILELIB == WINNTIO */
#if (FILELIB == PAGEBUFIO)
#include "fmpio.h"
/* using page buffered file I/O routines to access files */
typedef MPFILE *hdf_file_t;
# define H5FI_OPEN(p, a) (MPopen((p), (a)))
# define H5FI_CREATE(p) (MPopen((p), H5ACC_CREATE))
# define H5FI_CLOSE(f) (MPclose(f))
# define H5FI_FLUSH(f) (MPflush(f))
# define H5FI_READ(f, b, n) (MPread((f), (char *)(b), (n)))
# define H5FI_WRITE(f, b, n) (MPwrite((f), (char *)(b), (n)))
# define H5FI_SEEK(f, o) (MPseek((f), (off_t)(o), SEEK_SET))
# define H5FI_SEEKEND(f) (MPseek((f), (off_t)0, SEEK_END))
# define H5FI_TELL(f) (MPseek((f), (off_t)0, SEEK_CUR))
# define H5FI_OPENERR(f) ((f) == (MPFILE *)NULL)
# define H5FI_INVALID_FILE ((MPFILE *)NULL)
#endif /* FILELIB == PAGEBUFIO */
/**************************************************************************
* Allocation functions defined differently
**************************************************************************/
#if !defined MALLOC_CHECK
# define HDmalloc(s) (malloc((size_t)s))
# define HDcalloc(a,b) (calloc((size_t)a,(size_t)b))
# define HDfree(p) (free((void*)p))
# define HDrealloc(p,s) (realloc((void*)p,(size_t)s))
#endif /* !defined MALLOC_CHECK */
/* Macro to free space and clear pointer to NULL */
#define HDfreenclear(p) { if((p)!=NULL) HDfree(p); p=NULL; }
/**************************************************************************
* String functions defined differently
**************************************************************************/
# define HDstrcat(s1,s2) (strcat((s1),(s2)))
# define HDstrcmp(s,t) (strcmp((s),(t)))
# define HDstrcpy(s,d) (strcpy((s),(d)))
# define HDstrlen(s) (strlen((const char *)(s)))
# define HDstrncmp(s1,s2,n) (strncmp((s1),(s2),(n)))
# define HDstrncpy(s1,s2,n) (strncpy((s1),(s2),(n)))
# define HDstrchr(s,c) (strchr((s),(c)))
# define HDstrrchr(s,c) (strrchr((s),(c)))
# define HDstrtol(s,e,b) (strtol((s),(e),(b)))
/* non-standard function, not defined on the following mahcines - */
#if !(defined VMS || defined macintosh || defined MAC || defined __MWERKS__ || defined SYMANTEC_C || defined MIPSEL || defined NEXT || defined CONVEX || defined IBM6000 || defined ANSISUN || defined IRIX)
# define HDstrdup(s) ((char *)strdup((const char *)(s)))
#endif /* !(VMS | etc..) */
/**************************************************************************
* Memory functions defined differently
**************************************************************************/
# define HDmemcpy(dst,src,n) (memcpy((void *)(dst),(const void *)(src),(size_t)(n)))
# define HDmemmove(dst,src,n) (memmove((void*)(dst),(const void *)(src),(size_t)(n)))
# define HDmemset(dst,c,n) (memset((void *)(dst),(intn)(c),(size_t)(n)))
# define HDmemcmp(dst,src,n) (memcmp((const void *)(dst),(const void *)(src),(size_t)(n)))
/**************************************************************************
* Misc. functions
**************************************************************************/
#if defined (MAC) || defined (macintosh) || defined(__MWERKS__) || defined (SYMANTEC_C)
#define HDstat(path, result) (mstat(path))
#else /* !macintosh */
#define HDstat(path, result) (stat(path, result))
#endif /* !macintosh */
#define HDgetcwd(s,l) (getcwd(s,l))
#define HDgetenv(s1) (getenv(s1))
#define HDputenv(s1) (putenv(s1))
#define HDltoa(v) (ltoa(v))
#if defined (SUN) && defined(__GNUC__)
#define HDatexit(f) (0) /* we punt on the SUN using gcc */
#else /* !SUN & GCC */
#define HDatexit(f) (atexit(f))
#endif /* !SUN & GCC */
#endif /* HDF5PORT_H */
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