path: root/src/H5private.h

/*
 * Copyright (C) 1998-2001 NCSA
 *		           All rights reserved.
 *
 * Programmer:	Robb Matzke <matzke@llnl.gov>
 *		Friday, October 30, 1998
 *
 * Purpose:	This file is included by all HDF5 library source files to
 *		define common things which are not defined in the HDF5 API.
 *		The configuration constants like H5_HAVE_UNISTD_H etc. are
 *		defined in H5config.h which is included by H5public.h.
 *
 */
#ifndef _H5private_H
#define _H5private_H

#include "H5public.h"		/* Include Public Definitions		*/

/*
 * Since H5config.h is a generated header file, it is messy to try
 * to put a #ifndef _H5config_H ... #endif guard in it.
 * HDF5 has set an internal rule that it is being included here.
 * Source files should NOT include H5config.h directly but include
 * it via H5private.h.  The #ifndef _H5private_H guard above would
 * prevent repeated include.
 */
#include "H5config.h"		/* Include all configuration info	*/

/* include the pthread header */
#ifdef H5_HAVE_THREADSAFE
#include <pthread.h>
#endif

/*
 * Include ANSI-C header files.
 */
#ifdef H5_STDC_HEADERS
#   include <assert.h>
#   include <ctype.h>
#   include <errno.h>
#   include <fcntl.h>
#   include <float.h>
#   include <limits.h>
#   include <math.h>
#   include <signal.h>
#   include <stdarg.h>
#   include <stdio.h>
#   include <stdlib.h>
#   include <string.h>
#endif

/*
 * If _POSIX_VERSION is defined in unistd.h then this system is Posix.1
 * compliant. Otherwise all bets are off.
 */
#ifdef H5_HAVE_UNISTD_H
#   include <sys/types.h>
#   include <unistd.h>
#endif
#ifdef _POSIX_VERSION
#   include <sys/wait.h>
#   include <pwd.h>
#endif

/*
 * C9x integer types
 */
#ifdef H5_HAVE_STDINT_H
#   include <stdint.h>
#endif

/*
 * The `struct stat' data type for stat() and fstat(). This is a Posix file
 * but often apears on non-Posix systems also.	The `struct stat' is required
 * for hdf5 to compile, although only a few fields are actually used.
 */
#ifdef H5_HAVE_SYS_STAT_H
#   include <sys/stat.h>
#endif

/*
 * If a program may include both `time.h' and `sys/time.h' then
 * TIME_WITH_SYS_TIME is defined (see AC_HEADER_TIME in configure.in).
 * On some older systems, `sys/time.h' includes `time.h' but `time.h' is not
 * protected against multiple inclusion, so programs should not explicitly
 * include both files. This macro is useful in programs that use, for example,
 * `struct timeval' or `struct timezone' as well as `struct tm'.  It is best
 * used in conjunction with `HAVE_SYS_TIME_H', whose existence is checked
 * by `AC_CHECK_HEADERS(sys/time.h)' in configure.in.
 */
#if defined(H5_TIME_WITH_SYS_TIME)
#   include <sys/time.h>
#   include <time.h>
#elif defined(H5_HAVE_SYS_TIME_H)
#   include <sys/time.h>
#else
#   include <time.h>
#endif

/*
 * Longjumps are used to detect alignment constrants
 */
#ifdef H5_HAVE_SETJMP_H
#   include <setjmp.h>
#endif

/*
 * Resource usage is not Posix.1 but HDF5 uses it anyway for some performance
 * and debugging code if available.
 */
#ifdef H5_HAVE_SYS_RESOURCE_H
#   include <sys/resource.h>
#endif

/*
 * Unix ioctls.	 These are used by h5ls (and perhaps others) to determine a
 * resonable output width.
 */
#ifdef H5_HAVE_SYS_IOCTL_H
#   include <sys/ioctl.h>
#endif

/*
 * System information. These are needed on the DEC Alpha to turn off fixing
 * of unaligned accesses by the operating system during detection of
 * alignment constraints in H5detect.c:main().
 */
#ifdef H5_HAVE_SYS_SYSINFO_H
#   include <sys/sysinfo.h>
#endif
#ifdef H5_HAVE_SYS_PROC_H
#   include <sys/proc.h>
#endif

#ifdef WIN32

/*
 * we need this from <windows.h> 
 * HDF5 is currently supported on _X86_ 
 * including <windows.h> has the side effect of introducing thousands of Windows GUI
 * macros and type declarations to the compilation environment, so we don't include it
 * pvn
 */

#if !defined(_68K_) && !defined(_MPPC_) && !defined(_PPC_) && !defined(_ALPHA_) && !defined(_MIPS_) && !defined(_X86_) && defined(_M_IX86)
#define _X86_
#endif

#include <windef.h>
#include <winbase.h>

/* H5_inline */

/* remove any previous defs made by configure in unix */
#ifdef H5_inline 
# undef H5_inline
#endif

/*
syntax:

inline function_declarator;   // C++ Specific
__inline function_declarator; // Microsoft Specific
The inline and __inline keywords allow the compiler to insert a copy of 
the function body into each place the function is called

inline is now in C but in the C99 standard and not the old C89 version so
MS doesn't recognize it yet (as of April 2001)
*/
#if defined(__MWERKS__) || defined(__cplusplus)
# define H5_inline   inline
# else
# define H5_inline 
#endif /*__MWERKS__*/

/* Metroworks <sys/types.h> doesn't define off_t. */
#ifdef __MWERKS__
typedef long off_t;
/* Metroworks does not define EINTR in <errno.h> */
# define EINTR 4
#endif /*__MWERKS__*/

#endif /*WIN32*/

#ifndef F_OK
#   define F_OK	00
#   define W_OK 02
#   define R_OK 04
#endif

/*
 * Pablo support files.
 */
#ifdef H5_HAVE_PABLO
#   define IOTRACE
#   define HDFIOTRACE
#   include "HDFIOTrace.h"
#   include "ProcIDs.h"
#endif

/*
 * NT doesn't define SIGBUS, but since NT only runs on processors             
 * that do not have alignment constraints a SIGBUS would never be              
 * raised, so we just replace it with SIGILL (which also should               
 * never be raised by the hdf5 library).                                       
 */  
#ifndef SIGBUS
#	define SIGBUS SIGILL
#endif

/*
 * Does the compiler support the __attribute__(()) syntax?  This is how gcc
 * suppresses warnings about unused function arguments.	 It's no big deal if
 * we don't.
 */
#ifdef H5_HAVE_ATTRIBUTE
#   define UNUSED		__attribute__((unused))
#else
#   define __attribute__(X)	/*void*/
#   define UNUSED		/*void*/
#endif

/*
 * Does the compiler expand __FUNCTION__ to be the name of the function
 * currently being defined?  If not then define it to be some constant
 * string.
 */
#ifndef H5_HAVE_FUNCTION
#   define __FUNCTION__	 "NoFunctionName"
#endif

/* Version #'s of the major components of the file format */
#define HDF5_BOOTBLOCK_VERSION	0	/* of the boot block format	  */
#define HDF5_FREESPACE_VERSION	0	/* of the Free-Space Info	  */
#define HDF5_OBJECTDIR_VERSION	0	/* of the Object Directory format */
#define HDF5_SHAREDHEADER_VERSION 0	/* of the Shared-Header Info	  */
#define HDF5_DRIVERINFO_VERSION	0	/* of the Driver Information Block*/

/*
 * Status return values for the `herr_t' type.
 * Since some unix/c routines use 0 and -1 (or more precisely, non-negative
 * vs. negative) as their return code, and some assumption had been made in
 * the code about that, it is important to keep these constants the same
 * values.  When checking the success or failure of an integer-valued
 * function, remember to compare against zero and not one of these two
 * values.
 */
#define SUCCEED		0
#define FAIL		(-1)
#define UFAIL		(unsigned)(-1)

/* number of members in an array */
#ifndef NELMTS
#    define NELMTS(X)		(sizeof(X)/sizeof(X[0]))
#endif

/* minimum of two, three, or four values */
#undef MIN
#define MIN(a,b)		(((a)<(b)) ? (a) : (b))
#define MIN2(a,b)		MIN(a,b)
#define MIN3(a,b,c)		MIN(a,MIN(b,c))
#define MIN4(a,b,c,d)		MIN(MIN(a,b),MIN(c,d))

/* maximum of two, three, or four values */
#undef MAX
#define MAX(a,b)		(((a)>(b)) ? (a) : (b))
#define MAX2(a,b)		MAX(a,b)
#define MAX3(a,b,c)		MAX(a,MAX(b,c))
#define MAX4(a,b,c,d)		MAX(MAX(a,b),MAX(c,d))

/* limit the middle value to be within a range (inclusive) */
#define RANGE(LO,X,HI)		MAX(LO,MIN(X,HI))

/* absolute value */
#ifndef ABS
#   define ABS(a)		(((a)>=0) ? (a) : -(a))
#endif

/* sign of argument */
#ifndef SIGN
#   define SIGN(a)		((a)>0 ? 1 : (a)<0 ? -1 : 0)
#endif

/*
 * HDF Boolean type.
 */
#ifndef FALSE
#   define FALSE 0
#endif
#ifndef TRUE
#   define TRUE (!FALSE)
#endif

/*
 * Although `long long' is part of the revised ANSI-C some compilers don't
 * support it yet.  We define `long_long' as the longest integral integer type
 * supported by the compiler, usually 64 bits.	It must be legal to qualify
 * `long_long' with `unsigned'.
 */
#if SIZEOF_LONG_LONG>0
#   define long_long	long long
#elif SIZEOF___INT64>0
#   define long_long	__int64	/*Win32*/
#   undef SIZEOF_LONG_LONG
#   define SIZEOF_LONG_LONG SIZEOF___INT64
#else
#   define long_long	long int
#   undef SIZEOF_LONG_LONG
#   define SIZEOF_LONG_LONG SIZEOF_LONG
#endif

/*
 * Numeric data types.	Some of these might be defined in Posix.1g, otherwise
 * we define them with the closest available type which is at least as large
 * as the number of bits indicated in the type name.  The `int8' types *must*
 * be exactly one byte wide because we use it for pointer calculations to
 * void* memory.
 */
#if SIZEOF_INT8_T==0
    typedef signed char int8_t;
#   undef SIZEOF_INT8_T
#   define SIZEOF_INT8_T SIZEOF_CHAR
#elif SIZEOF_INT8_T==1
#else
#   error "the int8_t type must be 1 byte wide"
#endif

#if SIZEOF_UINT8_T==0
    typedef unsigned char uint8_t;
#   undef SIZEOF_UINT8_T
#   define SIZEOF_UINT8_T SIZEOF_CHAR
#elif SIZEOF_UINT8_T==1
#else
#   error "the uint8_t type must be 1 byte wide"
#endif

#if SIZEOF_INT16_T>=2
#elif SIZEOF_SHORT>=2
    typedef short int16_t;
#   undef SIZEOF_INT16_T
#   define SIZEOF_INT16_T SIZEOF_SHORT
#elif SIZEOF_INT>=2
    typedef int int16_t;
#   undef SIZEOF_INT16_T
#   define SIZEOF_INT16_T SIZEOF_INT
#else
#   error "nothing appropriate for int16_t"
#endif

#if SIZEOF_UINT16_T>=2
#elif SIZEOF_SHORT>=2
    typedef unsigned short uint16_t;
#   undef SIZEOF_UINT16_T
#   define SIZEOF_UINT16_T SIZEOF_SHORT
#elif SIZEOF_INT>=2
    typedef unsigned uint16_t;
#   undef SIZEOF_UINT16_T
#   define SIZEOF_UINT16_T SIZEOF_INT
#else
#   error "nothing appropriate for uint16_t"
#endif

#if SIZEOF_INT32_T>=4
#elif SIZEOF_SHORT>=4
    typedef short int32_t;
#   undef SIZEOF_INT32_T
#   define SIZEOF_INT32_T SIZEOF_SHORT
#elif SIZEOF_INT>=4
    typedef int int32_t;
#   undef SIZEOF_INT32_T
#   define SIZEOF_INT32_T SIZEOF_INT
#elif SIZEOF_LONG>=4
    typedef long int32_t;
#   undef SIZEOF_INT32_T
#   define SIZEOF_INT32_T SIZEOF_LONG
#else
#   error "nothing appropriate for int32_t"
#endif

#if SIZEOF_UINT32_T>=4
#elif SIZEOF_SHORT>=4
    typedef short uint32_t;
#   undef SIZEOF_UINT32_T
#   define SIZEOF_UINT32_T SIZEOF_SHORT
#elif SIZEOF_INT>=4
    typedef unsigned int uint32_t;
#   undef SIZEOF_UINT32_T
#   define SIZEOF_UINT32_T SIZEOF_INT
#elif SIZEOF_LONG>=4
    typedef unsigned long uint32_t;
#   undef SIZEOF_UINT32_T
#   define SIZEOF_UINT32_T SIZEOF_LONG
#else
#   error "nothing appropriate for uint32_t"
#endif

#if SIZEOF_INT64_T>=8
#elif SIZEOF_INT>=8
    typedef int int64_t;
#   undef SIZEOF_INT64_T
#   define SIZEOF_INT64_T SIZEOF_INT
#elif SIZEOF_LONG>=8
    typedef long int64_t;
#   undef SIZEOF_INT64_T
#   define SIZEOF_INT64_T SIZEOF_LONG
#elif SIZEOF_LONG_LONG>=8
    typedef long_long int64_t;
#   undef SIZEOF_INT64_T
#   define SIZEOF_INT64_T SIZEOF_LONG_LONG
#else
#   error "nothing appropriate for int64_t"
#endif

#if SIZEOF_UINT64_T>=8
#elif SIZEOF_INT>=8
    typedef unsigned uint64_t;
#   undef SIZEOF_UINT64_T
#   define SIZEOF_UINT64_T SIZEOF_INT
#elif SIZEOF_LONG>=8
    typedef unsigned long uint64_t;
#   undef SIZEOF_UINT64_T
#   define SIZEOF_UINT64_T SIZEOF_LONG
#elif SIZEOF_LONG_LONG>=8
    typedef unsigned long_long uint64_t;
#   undef SIZEOF_UINT64_T
#   define SIZEOF_UINT64_T SIZEOF_LONG_LONG
#else
#   error "nothing appropriate for uint64_t"
#endif

/*
 * Define a type for generic integers.	Use this instead of `int' to
 * show that some thought went into the algorithm.
 */
typedef int intn;
typedef unsigned uintn;

/*
 * Maximum and minimum values.	These should be defined in <limits.h> for the
 * most part.
 */
#ifndef LLONG_MAX
#   define LLONG_MAX	((long_long)(((unsigned long_long)1		      \
				      <<(8*sizeof(long_long)-1))-1))
#   define ULLONG_MAX	((unsigned long_long)((long_long)(-1)))
#endif
#ifndef SIZET_MAX
#   define SIZET_MAX	((hsize_t)(size_t)(ssize_t)(-1))
#   define SSIZET_MAX	((hsize_t)(ssize_t)((size_t)1<<(8*sizeof(ssize_t)-1)))
#endif
#define HSIZET_MAX	((hsize_t)(hssize_t)(-1))
#define HSSIZET_MAX	((hsize_t)1<<(8*sizeof(hssize_t)-1))

/*
 * Some compilers have problems declaring auto variables that point
 * to string constants.	 Use the CONSTR() macro so it's easy to fix
 * those compilers.
 */
#ifndef CONSTR
#  define CONSTR(VAR,STR) static const char VAR[]=STR
#endif

/*
 * A macro for detecting over/under-flow when casting between types
 */
#ifndef NDEBUG
#define H5_CHECK_OVERFLOW(var,vartype,casttype) \
{                                               \
    casttype _tmp_overflow=(casttype)(var);     \
    assert((var)==(vartype)_tmp_overflow);      \
}
#else /* NDEBUG */
#define H5_CHECK_OVERFLOW(var,vartype,casttype)
#endif /* NDEBUG */

/*
 * Data types and functions for timing certain parts of the library.
 */
typedef struct {
    double	utime;		/*user time			*/
    double	stime;		/*system time			*/
    double	etime;		/*elapsed wall-clock time	*/
} H5_timer_t;

__DLL__ void H5_timer_reset (H5_timer_t *timer);
__DLL__ void H5_timer_begin (H5_timer_t *timer);
__DLL__ void H5_timer_end (H5_timer_t *sum/*in,out*/,
			   H5_timer_t *timer/*in,out*/);
__DLL__ void H5_bandwidth(char *buf/*out*/, double nbytes, double nseconds);

/*
 * Redefine all the POSIX functions.  We should never see a POSIX
 * function (or any other non-HDF5 function) in the source!
 */
#define HDabort()		abort()
#define HDabs(X)		abs(X)
#define HDaccess(F,M)		access(F, M)
#define HDacos(X)		acos(X)
#define HDalarm(N)		alarm(N)
#define HDasctime(T)		asctime(T)
#define HDasin(X)		asin(X)
#define HDassert(X)		assert(X)
#define HDatan(X)		atan(X)
#define HDatan2(X,Y)		atan2(X,Y)
#define HDatexit(F)		atexit(F)
#define HDatof(S)		atof(S)
#define HDatoi(S)		atoi(S)
#define HDatol(S)		atol(S)
#define HDBSDgettimeofday(S,P)	BSDgettimeofday(S,P)
#define HDbsearch(K,B,N,Z,F)	bsearch(K,B,N,Z,F)
#define HDcalloc(N,Z)		calloc(N,Z)
#define HDceil(X)		ceil(X)
#define HDcfgetispeed(T)	cfgetispeed(T)
#define HDcfgetospeed(T)	cfgetospeed(T)
#define HDcfsetispeed(T,S)	cfsetispeed(T,S)
#define HDcfsetospeed(T,S)	cfsetospeed(T,S)
#define HDchdir(S)		chdir(S)
#define HDchmod(S,M)		chmod(S,M)
#define HDchown(S,O,G)		chown(S,O,G)
#define HDclearerr(F)		clearerr(F)
#define HDclock()		clock()
#define HDclose(F)		close(F)
#define HDclosedir(D)		closedir(D)
#define HDcos(X)		cos(X)
#define HDcosh(X)		cosh(X)
#define HDcreat(S,M)		creat(S,M)
#define HDctermid(S)		ctermid(S)
#define HDctime(T)		ctime(T)
#define HDcuserid(S)		cuserid(S)
#ifdef H5_HAVE_DIFFTIME
#define HDdifftime(X,Y)		difftime(X,Y)
#else
#define HDdifftime(X,Y)		((double)(X)-(double)(Y))
#endif
#define HDdiv(X,Y)		div(X,Y)
#define HDdup(F)		dup(F)
#define HDdup2(F,I)		dup2(F,I)
/* execl() variable arguments */
/* execle() variable arguments */
/* execlp() variable arguments */
#define HDexecv(S,AV)		execv(S,AV)
#define HDexecve(S,AV,E)	execve(S,AV,E)
#define HDexecvp(S,AV)		execvp(S,AV)
#define HDexit(N)		exit(N)
#define HD_exit(N)		_exit(N)
#define HDexp(X)		exp(X)
#define HDfabs(X)		fabs(X)
#define HDfclose(F)		fclose(F)
/* fcntl() variable arguments */
#define HDfdopen(N,S)		fdopen(N,S)
#define HDfeof(F)		feof(F)
#define HDferror(F)		ferror(F)
#define HDfflush(F)		fflush(F)
#define HDfgetc(F)		fgetc(F)
#define HDfgetpos(F,P)		fgetpos(F,P)
#define HDfgets(S,N,F)		fgets(S,N,F)
#define HDfileno(F)		fileno(F)
#define HDfloor(X)		floor(X)
#define HDfmod(X,Y)		fmod(X,Y)
#define HDfopen(S,M)		fopen(S,M)
#define HDfork()		fork()
#define HDfpathconf(F,N)	fpathconf(F,N)
__DLL__ int HDfprintf (FILE *stream, const char *fmt, ...);
#define HDfputc(C,F)		fputc(C,F)
#define HDfputs(S,F)		fputs(S,F)
#define HDfread(M,Z,N,F)	fread(M,Z,N,F)
#define HDfree(M)		free(M)
#define HDfreopen(S,M,F)	freopen(S,M,F)
#define HDfrexp(X,N)		frexp(X,N)
/* fscanf() variable arguments */
#define HDfseek(F,O,W)		fseek(F,O,W)
#define HDfsetpos(F,P)		fsetpos(F,P)
#define HDfstat(F,B)		fstat(F,B)
#define HDftell(F)		ftell(F)
#define HDfwrite(M,Z,N,F)	fwrite(M,Z,N,F)
#define HDgetc(F)		getc(F)
#define HDgetchar()		getchar()
#define HDgetcwd(S,Z)		getcwd(S,Z)
#define HDgetegid()		getegid()
#define HDgetenv(S)		getenv(S)
#define HDgeteuid()		geteuid()
#define HDgetgid()		getgid()
#define HDgetgrgid(G)		getgrgid(G)
#define HDgetgrnam(S)		getgrnam(S)
#define HDgetgroups(Z,G)	getgroups(Z,G)
#define HDgetlogin()		getlogin()
#define HDgetpgrp()		getpgrp()
#define HDgetpid()		getpid()
#define HDgetppid()		getppid()
#define HDgetpwnam(S)		getpwnam(S)
#define HDgetpwuid(U)		getpwuid(U)
#define HDgetrusage(X,S)	getrusage(X,S)
#define HDgets(S)		gets(S)
#define HDgettimeofday(S,P)	gettimeofday(S,P)
#define HDgetuid()		getuid()
#define HDgmtime(T)		gmtime(T)
#define HDisalnum(C)		isalnum((int)(C)) /*cast for solaris warning*/
#define HDisalpha(C)		isalpha((int)(C)) /*cast for solaris warning*/
#define HDisatty(F)		isatty(F)
#define HDiscntrl(C)		iscntrl((int)(C)) /*cast for solaris warning*/
#define HDisdigit(C)		isdigit((int)(C)) /*cast for solaris warning*/
#define HDisgraph(C)		isgraph((int)(C)) /*cast for solaris warning*/
#define HDislower(C)		islower((int)(C)) /*cast for solaris warning*/
#define HDisprint(C)		isprint((int)(C)) /*cast for solaris warning*/
#define HDispunct(C)		ispunct((int)(C)) /*cast for solaris warning*/
#define HDisspace(C)		isspace((int)(C)) /*cast for solaris warning*/
#define HDisupper(C)		isupper((int)(C)) /*cast for solaris warning*/
#define HDisxdigit(C)		isxdigit((int)(C)) /*cast for solaris warning*/
#define HDkill(P,S)		kill(P,S)
#define HDlabs(X)		labs(X)
#define HDldexp(X,N)		ldexp(X,N)
#define HDldiv(X,Y)		ldiv(X,Y)
#define HDlink(OLD,NEW)		link(OLD,NEW)
#define HDlocaleconv()		localeconv()
#define HDlocaltime(T)		localtime(T)
#define HDlog(X)		log(X)
#define HDlog10(X)		log10(X)
#define HDlongjmp(J,N)		longjmp(J,N)
#define HDlseek(F,O,W)		lseek(F,O,W)
#define HDmalloc(Z)		malloc(Z)
#define HDmblen(S,N)		mblen(S,N)
#define HDmbstowcs(P,S,Z)	mbstowcs(P,S,Z)
#define HDmbtowc(P,S,Z)		mbtowc(P,S,Z)
#define HDmemchr(S,C,Z)		memchr(S,C,Z)
#define HDmemcmp(X,Y,Z)		memcmp(X,Y,Z)
/*
 * The (char*) casts are required for the DEC when optimizations are turned
 * on and the source and/or destination are not aligned.
 */
#define HDmemcpy(X,Y,Z)		memcpy((char*)(X),(const char*)(Y),Z)
#define HDmemmove(X,Y,Z)	memmove((char*)(X),(const char*)(Y),Z)
#define HDmemset(X,C,Z)		memset(X,C,Z)
#define HDmkdir(S,M)		mkdir(S,M)
#define HDmkfifo(S,M)		mkfifo(S,M)
#define HDmktime(T)		mktime(T)
#define HDmodf(X,Y)		modf(X,Y)
#ifdef O_BINARY
#define HDopen(S,F,M)		open(S,F|_O_BINARY,M)
#else
#define HDopen(S,F,M)		open(S,F,M)
#endif
#define HDopendir(S)		opendir(S)
#define HDpathconf(S,N)		pathconf(S,N)
#define HDpause()		pause()
#define HDperror(S)		perror(S)
#define HDpipe(F)		pipe(F)
#define HDpow(X,Y)		pow(X,Y)
/* printf() variable arguments */
#define HDputc(C,F)		putc(C,F)
#define HDputchar(C)		putchar(C)
#define HDputs(S)		puts(S)
#define HDqsort(M,N,Z,F)	qsort(M,N,Z,F)
#define HDraise(N)		raise(N)
#define HDrand()		rand()
#define HDread(F,M,Z)		read(F,M,Z)
#define HDreaddir(D)		readdir(D)
#define HDrealloc(M,Z)		realloc(M,Z)
#define HDremove(S)		remove(S)
#define HDrename(OLD,NEW)	rename(OLD,NEW)
#define HDrewind(F)		rewind(F)
#define HDrewinddir(D)		rewinddir(D)
#define HDrmdir(S)		rmdir(S)
/* scanf() variable arguments */
#define HDsetbuf(F,S)		setbuf(F,S)
#define HDsetgid(G)		setgid(G)
#define HDsetjmp(J)		setjmp(J)
#define HDsetlocale(N,S)	setlocale(N,S)
#define HDsetpgid(P,PG)		setpgid(P,PG)
#define HDsetsid()		setsid()
#define HDsetuid(U)		setuid(U)
#define HDsetvbuf(F,S,M,Z)	setvbuf(F,S,M,Z)
#define HDsigaction(N,A)	sigaction(N,A)
#define HDsigaddset(S,N)	sigaddset(S,N)
#define HDsigdelset(S,N)	sigdelset(S,N)
#define HDsigemptyset(S)	sigemptyset(S)
#define HDsigfillset(S)		sigfillset(S)
#define HDsigismember(S,N)	sigismember(S,N)
#define HDsiglongjmp(J,N)	siglongjmp(J,N)
#define HDsignal(N,F)		signal(N,F)
#define HDsigpending(S)		sigpending(S)
#define HDsigprocmask(H,S,O)	sigprocmask(H,S,O)
#define HDsigsetjmp(J,N)	sigsetjmp(J,N)
#define HDsigsuspend(S)		sigsuspend(S)
#define HDsin(X)		sin(X)
#define HDsinh(X)		sinh(X)
#define HDsleep(N)		sleep(N)
#ifdef H5_HAVE_SNPRINTF
#ifdef __WATCOMC__
#   define HDsnprintf		_snprintf /*varargs*/
#else /* __WATCOMC__ */
#   define HDsnprintf		snprintf /*varargs*/
#endif /* __WATCOMC__ */
#endif
/* sprintf() variable arguments */
#define HDsqrt(X)		sqrt(X)
#define HDsrand(N)		srand(N)
/* sscanf() variable arguments */
#define HDstat(S,B)		stat(S,B)
#define HDstrcat(X,Y)		strcat(X,Y)
#define HDstrchr(S,C)		strchr(S,C)
#define HDstrcmp(X,Y)		strcmp(X,Y)
#define HDstrcoll(X,Y)		strcoll(X,Y)
#define HDstrcpy(X,Y)		strcpy(X,Y)
#define HDstrcspn(X,Y)		strcspn(X,Y)
#define HDstrerror(N)		strerror(N)
#define HDstrftime(S,Z,F,T)	strftime(S,Z,F,T)
#define HDstrlen(S)		strlen(S)
#define HDstrncat(X,Y,Z)	strncat(X,Y,Z)
#define HDstrncmp(X,Y,Z)	strncmp(X,Y,Z)
#define HDstrncpy(X,Y,Z)	strncpy(X,Y,Z)
#define HDstrpbrk(X,Y)		strpbrk(X,Y)
#define HDstrrchr(S,C)		strrchr(S,C)
#define HDstrspn(X,Y)		strspn(X,Y)
#define HDstrstr(X,Y)		strstr(X,Y)
#define HDstrtod(S,R)		strtod(S,R)
#define HDstrtok(X,Y)		strtok(X,Y)
#define HDstrtol(S,R,N)		strtol(S,R,N)
__DLL__ int64_t HDstrtoll (const char *s, const char **rest, int base);
#define HDstrtoul(S,R,N)	strtoul(S,R,N)
#define HDstrxfrm(X,Y,Z)	strxfrm(X,Y,Z)
#define HDsysconf(N)		sysconf(N)
#define HDsystem(S)		system(S)
#define HDtan(X)		tan(X)
#define HDtanh(X)		tanh(X)
#define HDtcdrain(F)		tcdrain(F)
#define HDtcflow(F,A)		tcflow(F,A)
#define HDtcflush(F,N)		tcflush(F,N)
#define HDtcgetattr(F,T)	tcgetattr(F,T)
#define HDtcgetpgrp(F)		tcgetpgrp(F)
#define HDtcsendbreak(F,N)	tcsendbreak(F,N)
#define HDtcsetattr(F,O,T)	tcsetattr(F,O,T)
#define HDtcsetpgrp(F,N)	tcsetpgrp(F,N)
#define HDtime(T)		time(T)
#define HDtimes(T)		times(T)
#define HDtmpfile()		tmpfile()
#define HDtmpnam(S)		tmpnam(S)
#define HDtolower(C)		tolower(C)
#define HDtoupper(C)		toupper(C)
#define HDttyname(F)		ttyname(F)
#define HDtzset()		tzset()
#define HDumask(N)		umask(N)
#define HDuname(S)		uname(S)
#define HDungetc(C,F)		ungetc(C,F)
#define HDunlink(S)		unlink(S)
#define HDutime(S,T)		utime(S,T)
#define HDva_arg(A,T)		va_arg(A,T)
#define HDva_end(A)		va_end(A)
#define HDva_start(A,P)		va_start(A,P)
#define HDvfprintf(F,FMT,A)	vfprintf(F,FMT,A)
#define HDvprintf(FMT,A)	vprintf(FMT,A)
#define HDvsprintf(S,FMT,A)	vsprintf(S,FMT,A)
#ifdef H5_HAVE_VSNPRINTF
#   define HDvsnprintf(S,N,FMT,A) vsnprintf(S,N,FMT,A)
#endif
#define HDwait(W)		wait(W)
#define HDwaitpid(P,W,O)	waitpid(P,W,O)
#define HDwcstombs(S,P,Z)	wcstombs(S,P,Z)
#define HDwctomb(S,C)		wctomb(S,C)
#define HDwrite(F,M,Z)		write(F,M,Z)

/*
 * And now for a couple non-Posix functions...  Watch out for systems that
 * define these in terms of macros.
 */
#ifdef WIN32
#define HDstrdup(S)    _strdup(S)
#else /* WIN32 */

#if !defined strdup && !defined H5_HAVE_STRDUP 
extern char *strdup(const char *s);
#endif

#define HDstrdup(S)     strdup(S)

#endif /* WIN32 */


#ifndef H5_HAVE_SNPRINTF
__DLL__ int HDsnprintf(char *buf, size_t size, const char *fmt, ...);
#endif
#ifndef H5_HAVE_VSNPRINTF
__DLL__ int HDvsnprintf(char *buf, size_t size, const char *fmt, va_list ap);
#endif

/*
 * These macros check whether debugging has been requested for a certain
 * package at run-time.	 Code for debugging is conditionally compiled by
 * defining constants like `H5X_DEBUG'.	 In order to see the output though
 * the code must be enabled at run-time with an environment variable
 * HDF5_DEBUG which is a list of packages to debug.
 *
 * Note:  If you add/remove items from this enum then be sure to update the
 *	  information about the package in H5_init_library().
 */
typedef enum {
    H5_PKG_A,				/*Attributes			*/
    H5_PKG_AC,				/*Meta data cache		*/
    H5_PKG_B,				/*B-trees			*/
    H5_PKG_D,				/*Datasets			*/
    H5_PKG_E,				/*Error handling		*/
    H5_PKG_F,				/*Files				*/
    H5_PKG_G,				/*Groups			*/
    H5_PKG_HG,				/*Global heap			*/
    H5_PKG_HL,				/*Local heap			*/
    H5_PKG_I,				/*Interface			*/
    H5_PKG_MF,				/*File memory management	*/
    H5_PKG_MM,				/*Core memory management	*/
    H5_PKG_O,				/*Object headers		*/
    H5_PKG_P,				/*Property lists		*/
    H5_PKG_S,				/*Data spaces			*/
    H5_PKG_T,				/*Data types			*/
    H5_PKG_V,				/*Vector functions		*/
    H5_PKG_Z,				/*Raw data filters		*/
    H5_NPKGS				/*Must be last			*/
} H5_pkg_t;

typedef struct H5_debug_t {
    FILE		*trace;		/*API trace output stream	*/
    struct {
	const char	*name;		/*package name			*/
	FILE		*stream;	/*output stream	or NULL		*/
    } pkg[H5_NPKGS];
} H5_debug_t;

extern H5_debug_t		H5_debug_g;
#define H5DEBUG(X)		(H5_debug_g.pkg[H5_PKG_##X].stream)

/*-------------------------------------------------------------------------
 * Purpose:	These macros are inserted automatically just after the
 *		FUNC_ENTER() macro of API functions and are used to trace
 *		application program execution. Unless H5_DEBUG_API has been
 *		defined they are no-ops.
 *
 * Arguments:	R	- Return type encoded as a string
 *		T	- Argument types encoded as a string
 *		A0-An	- Arguments.  The number at the end of the macro name
 *			  indicates the number of arguments.
 *
 * Programmer:	Robb Matzke
 *
 * Modifications:
 *------------------------------------------------------------------------- 
 */
#ifdef H5_DEBUG_API
#define H5TRACE_DECL			   const char *RTYPE=NULL
#define H5TRACE0(R,T)			   RTYPE=R;			      \
					   H5_trace(0,FUNC,T)
#define H5TRACE1(R,T,A0)		   RTYPE=R;			      \
					   H5_trace(0,FUNC,T,#A0,A0)
#define H5TRACE2(R,T,A0,A1)		   RTYPE=R;			      \
					   H5_trace(0,FUNC,T,#A0,A0,#A1,A1)
#define H5TRACE3(R,T,A0,A1,A2)		   RTYPE=R;			      \
					   H5_trace(0,FUNC,T,#A0,A0,#A1,A1,   \
						    #A2,A2)
#define H5TRACE4(R,T,A0,A1,A2,A3)	   RTYPE=R;			      \
					   H5_trace(0,FUNC,T,#A0,A0,#A1,A1,   \
						    #A2,A2,#A3,A3)
#define H5TRACE5(R,T,A0,A1,A2,A3,A4)	   RTYPE=R;			      \
					   H5_trace(0,FUNC,T,#A0,A0,#A1,A1,   \
						    #A2,A2,#A3,A3,#A4,A4)
#define H5TRACE6(R,T,A0,A1,A2,A3,A4,A5)	   RTYPE=R;			      \
					   H5_trace(0,FUNC,T,#A0,A0,#A1,A1,   \
						    #A2,A2,#A3,A3,#A4,A4,     \
						    #A5,A5)
#define H5TRACE7(R,T,A0,A1,A2,A3,A4,A5,A6) RTYPE=R;			      \
					   H5_trace(0,FUNC,T,#A0,A0,#A1,A1,   \
						    #A2,A2,#A3,A3,#A4,A4,     \
						    #A5,A5,#A6,A6)
#define H5TRACE_RETURN(V)		   if (RTYPE) {			      \
					      H5_trace(1,NULL,RTYPE,NULL,V);  \
					      RTYPE=NULL;		      \
					   }
#else
#define H5TRACE_DECL			   /*void*/
#define H5TRACE0(R,T)			   /*void*/
#define H5TRACE1(R,T,A0)		   /*void*/
#define H5TRACE2(R,T,A0,A1)		   /*void*/
#define H5TRACE3(R,T,A0,A1,A2)		   /*void*/
#define H5TRACE4(R,T,A0,A1,A2,A3)	   /*void*/
#define H5TRACE5(R,T,A0,A1,A2,A3,A4)	   /*void*/
#define H5TRACE6(R,T,A0,A1,A2,A3,A4,A5)	   /*void*/
#define H5TRACE7(R,T,A0,A1,A2,A3,A4,A5,A6) /*void*/
#define H5TRACE_RETURN(V)		   /*void*/
#endif

__DLL__ void H5_trace(hbool_t returning, const char *func, const char *type,
		      ...);


/*-------------------------------------------------------------------------
 * Purpose:	Register function entry for library initialization and code
 *		profiling.
 *
 * Notes:	Every file must have a file-scope variable called
 *		`initialize_interface_g' of type hbool_t which is initialized
 *		to FALSE.
 *
 *		Don't use local variable initializers which contain
 *		calls to other library functions since the initializer
 *		would happen before the FUNC_ENTER() gets called.  Don't
 *		use initializers that require special cleanup code to
 *		execute if FUNC_ENTER() fails since a failing FUNC_ENTER()
 *		returns immediately without branching to the `done' label.
 *
 * Programmer:	Quincey Koziol
 *
 * Modifications:
 *
 *	Robb Matzke, 4 Aug 1997
 *	The `interface_init_func' can be the null pointer.  Changed
 *	HGOTO_ERROR() to HRETURN_ERROR() since no clean-up needs to occur
 *	when an error is detected at this point since this must be the
 *	first executable statement in a function.  This allows functions
 *	to omit the `done:' label when convenient to do so.
 *
 *	Robb Matzke, 4 Aug 1997
 *	The pablo mask comes from the constant PABLO_MASK defined on
 *	a per-file basis.  The `pablo_func_id' is generated from the
 *	`func_name' argument by prepending an `ID_' to the name.  The
 *	pablo function identifier should be saved in a local variable
 *	so FUNC_LEAVE() can access it.
 *
 *	Robb Matzke, 4 Aug 1997
 *	It is safe to call this function even inside various library
 *	initializing functions.	 Infinite recursion is no longer a
 *	danger.
 *
 *	Robb Matzke, 3 Dec 1997
 *	The interface initialization function is no longer passed as an
 *	argument unless the `FUNC_ENTER_INIT' form is called.  Instead, the
 *	function comes from the `INTERFACE_INIT' constant which must be
 *	defined in every source file.
 *
 *	Robb Matzke, 17 Jun 1998
 *	Added auto variable RTYPE which is initialized by the tracing macros.
 *-------------------------------------------------------------------------
 */

/* Is `S' the name of an API function? */
#define H5_IS_API(S) ('_'!=S[2] && '_'!=S[3] && (!S[4] || '_'!=S[4]))

/* global library version information string */
extern char	H5_lib_vers_info_g[];

/* Lock headers */
#ifdef H5_HAVE_THREADSAFE

/* Include required thread-safety header */
#include "H5TSprivate.h"

/* replacement structure for original global variable */
typedef struct H5_api_struct {
  H5TS_mutex_t init_lock;           /* API entrance mutex */
  hbool_t H5_libinit_g;
} H5_api_t;

/* Macro for first thread initialization */
#define H5_FIRST_THREAD_INIT                                                  \
   pthread_once(&H5TS_first_init_g, H5TS_first_thread_init);

/* Macros for threadsafe HDF-5 Phase I locks */
#define H5_INIT_GLOBAL H5_g.H5_libinit_g
#define H5_API_LOCK_BEGIN                                                     \
   if (H5_IS_API(FUNC)) {                                                     \
     H5TS_mutex_lock(&H5_g.init_lock);
#define H5_API_LOCK_END }
#define H5_API_UNLOCK_BEGIN                                                   \
  if (H5_IS_API(FUNC)) {                                                      \
    H5TS_mutex_unlock(&H5_g.init_lock);
#define H5_API_UNLOCK_END }

/* Macros for thread cancellation-safe mechanism */
#define H5_API_UNSET_CANCEL                                                   \
  if (H5_IS_API(FUNC)) {                                                      \
    H5TS_cancel_count_inc();                                                    \
  }

#define H5_API_SET_CANCEL                                                     \
  if (H5_IS_API(FUNC)) {                                                      \
    H5TS_cancel_count_dec();                                                    \
  }

extern H5_api_t H5_g;

#else

/* disable any first thread init mechanism */
#define H5_FIRST_THREAD_INIT

#define H5_INIT_GLOBAL H5_libinit_g

/* disable locks (sequential version) */
#define H5_API_LOCK_BEGIN
#define H5_API_LOCK_END
#define H5_API_UNLOCK_BEGIN
#define H5_API_UNLOCK_END

/* disable cancelability (sequential version) */
#define H5_API_UNSET_CANCEL
#define H5_API_SET_CANCEL

/* extern global variables */

extern hbool_t H5_libinit_g;   /*good thing C's lazy about extern! */
#endif

#define FUNC_ENTER(func_name,err) FUNC_ENTER_INIT(func_name,INTERFACE_INIT,err)

#define FUNC_ENTER_INIT(func_name,interface_init_func,err) {		      \
   CONSTR (FUNC, #func_name);						      \
   PABLO_SAVE (ID_ ## func_name)  					      \
   static unsigned know_api=0, is_api=0;                \
   H5TRACE_DECL;							      \
									      \
   PABLO_TRACE_ON (PABLO_MASK, pablo_func_id);				      \
									      \
   /* Initialize the library */						      \
   H5_FIRST_THREAD_INIT                                                       \
   H5_API_UNSET_CANCEL                                                        \
   H5_API_LOCK_BEGIN                                                          \
     if (!(H5_INIT_GLOBAL)) {                                                 \
       H5_INIT_GLOBAL = TRUE;                                                 \
       if (H5_init_library()<0) {					      \
      HRETURN_ERROR (H5E_FUNC, H5E_CANTINIT, err,			      \
            "library initialization failed");		      \
       }								      \
     }									      \
   H5_API_LOCK_END                                                            \
                                                \
   /* Initialize this interface or bust */				      \
   if (!interface_initialize_g) {					      \
      interface_initialize_g = 1;					      \
      if (interface_init_func &&					      \
      ((herr_t(*)(void))interface_init_func)()<0) {			      \
         interface_initialize_g = 0;					      \
     HRETURN_ERROR (H5E_FUNC, H5E_CANTINIT, err,			      \
            "interface initialization failed");		      \
      }									      \
   }									      \
                                            \
   /* Check if we know this is an API function or not */        \
   if(!know_api) {                          \
       know_api=1;                          \
       is_api=H5_IS_API(FUNC);              \
   }                                        \
   									      \
   /* Clear thread error stack entering public functions */		      \
   if (is_api && H5E_clearable_g) {				      \
       H5E_clear ();							      \
   }									      \
   {

/*-------------------------------------------------------------------------
 * Purpose:	Register function exit for code profiling.  This should be
 *		the last statement executed by a function.
 *
 * Programmer:	Quincey Koziol
 *
 * Modifications:
 *
 *	Robb Matzke, 4 Aug 1997
 *	The pablo mask comes from the constant PABLO_MASK defined on a
 *	per-file basis.	 The pablo_func_id comes from an auto variable
 *	defined by FUNC_ENTER.
 *
 *-------------------------------------------------------------------------
 */
#define FUNC_LEAVE(return_value) HRETURN(return_value)}}

/*
 * The FUNC_ENTER() and FUNC_LEAVE() macros make calls to Pablo functions
 * through one of these two sets of macros.
 */
#ifdef H5_HAVE_PABLO
#  define PABLO_SAVE(func_id)	intn pablo_func_id = func_id;
#  define PABLO_TRACE_ON(m, f)	TRACE_ON(m,f)
#  define PABLO_TRACE_OFF(m, f) TRACE_OFF(m,f)
#else
#  define PABLO_SAVE(func_id)	/*void */
#  define PABLO_TRACE_ON(m, f)	/*void */
#  define PABLO_TRACE_OFF(m, f) /*void */
#endif

/* Private functions, not part of the publicly documented API */
__DLL__ herr_t H5_init_library(void);
__DLL__ void H5_term_library(void);

/* Functions to terminate interfaces */
__DLL__ intn H5A_term_interface(void);
__DLL__ intn H5D_term_interface(void);
__DLL__ intn H5F_term_interface(void);
__DLL__ intn H5G_term_interface(void);
__DLL__ intn H5I_term_interface(void);
__DLL__ intn H5P_term_interface(void);
__DLL__ intn H5R_term_interface(void);
__DLL__ intn H5S_term_interface(void);
__DLL__ intn H5TN_term_interface(void);
__DLL__ intn H5T_term_interface(void);
__DLL__ intn H5Z_term_interface(void);


#endif