#if !defined __UUID_H__

#    define  __UUID_H__

#include <string.h>

#include <stdio.h>

#include <stdlib.h>

#ifndef _MSC_VER

/* No unistd.h in MS VC */

#include <unistd.h>

#endif

#include <time.h>

#if !defined INT2PTR

#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)

#  define PTRV			UV

#  define INT2PTR(any,d)	(any)(d)

#else

#  if PTRSIZE == LONGSIZE 

#    define PTRV		unsigned long

#  else

#    define PTRV		unsigned

#  endif

#  define INT2PTR(any,d)	(any)(PTRV)(d)

#endif

#define NUM2PTR(any,d)	(any)(PTRV)(d)

#define PTR2IV(p)	INT2PTR(IV,p)

#define PTR2UV(p)	INT2PTR(UV,p)

#define PTR2NV(p)	NUM2PTR(NV,p)

#if PTRSIZE == LONGSIZE 

#  define PTR2ul(p)	(unsigned long)(p)

#else

#  define PTR2ul(p)	INT2PTR(unsigned long,p)	

#endif

#endif

#if defined __cygwin__ || defined __mingw32__ || defined _MSC_VER

#include <windows.h>

#endif

#if defined __darwin__

#include <sys/file.h>

#endif

#ifdef _MSC_VER

#include <process.h>

#endif

#if !defined _STDIR

#    define  _STDIR			"/var/tmp"

#endif

#if !defined _DEFAULT_UMASK

#    define  _DEFAULT_UMASK		0007

#endif

#define UUID_STATE			".UUID_STATE"

#define UUID_NODEID			".UUID_NODEID"

#if defined __mingw32__ || (defined _WIN32 && !defined(__cygwin__)) || defined _MSC_VER

#define UUID_STATE_NV_STORE		_STDIR"\\"UUID_STATE

#define UUID_NODEID_NV_STORE		_STDIR"\\"UUID_NODEID

#else

#define UUID_STATE_NV_STORE		_STDIR"/"UUID_STATE

#define UUID_NODEID_NV_STORE		_STDIR"/"UUID_NODEID

#endif

#define UUIDS_PER_TICK 1024

#ifdef _MSC_VER

#define I64(C) C##i64

#else

#define I64(C) C##LL

#endif

#define F_BIN 0

#define F_STR 1

#define F_HEX 2

#define F_B64 3

#define CHECK(f1, f2) if (f1 != f2) RETVAL = f1 < f2 ? -1 : 1;

typedef unsigned int       unsigned32;

typedef unsigned short     unsigned16;

typedef unsigned char      unsigned8;

typedef unsigned char      byte;

#ifndef _MSC_VER

typedef unsigned long long unsigned64_t;

# else

typedef __int64 int64_t;

typedef unsigned __int64 uint64_t;

typedef __int32 int32_t;

typedef unsigned __int32 uint32_t;

typedef __int16 int16_t;

typedef unsigned __int16 uint16_t;

typedef __int8 int8_t;

typedef unsigned __int8 uint8_t;

typedef unsigned __int64 unsigned64_t;

// http://msdn2.microsoft.com/en-us/library/296az74e.aspx - Integer Limits

typedef int pid_t;

#endif /* _MSC_VER */

typedef unsigned64_t       perl_uuid_time_t;

/* Android's lic provides neither lockf nor any of the related constants */

#if   (defined __solaris__ || defined __linux__) && !defined(__android__)

#     define LOCK(f)		lockf(fileno(f),F_LOCK,0);

#     define UNLOCK(f)		lockf(fileno(f),F_ULOCK,0);

#elif defined __darwin__

#     define LOCK(f)		flock(fileno(f),LOCK_EX);

#     define UNLOCK(f)		flock(fileno(f),LOCK_UN);

#else

#     define LOCK(f)

#     define UNLOCK(f)

#endif

#undef perl_uuid_t

typedef struct _uuid_node_t {

   char nodeID[6];

} uuid_node_t;

typedef struct _perl_uuid_t {

   unsigned32          time_low;

   unsigned16          time_mid;

   unsigned16          time_hi_and_version;

   unsigned8           clock_seq_hi_and_reserved;

   unsigned8           clock_seq_low;

   byte                node[6];

} perl_uuid_t;

typedef struct _uuid_state_t { 

   perl_uuid_time_t ts;

   uuid_node_t node;

   unsigned16  cs;  

} uuid_state_t;

typedef struct _uuid_context_t {

   uuid_state_t state;

   uuid_node_t  nodeid;

   perl_uuid_time_t  next_save;

} uuid_context_t;

static void format_uuid_v1(

   perl_uuid_t      *uuid, 

   unsigned16   clockseq,

   perl_uuid_time_t  timestamp, 

   uuid_node_t  node

);

static void format_uuid_v3(

   perl_uuid_t      *uuid, 

   unsigned     char hash[16]

);

static void       get_current_time(perl_uuid_time_t * timestamp);

static unsigned16 true_random(void);

static void       get_system_time(perl_uuid_time_t *perl_uuid_time);

static void       get_random_info(unsigned char seed[16]);

static SV*        make_ret(const perl_uuid_t u, int type);

static SV*        MD5Init(void);

static void       MD5Update(SV* ctx, SV* data);

static void       MD5Final(unsigned char hash[16], SV* ctx);

static const char base64[] =

   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

static unsigned char index64[256] = {

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,62, 255,255,255,63,

   52,53,54,55, 56,57,58,59, 60,61,255,255, 255,254,255,255,

   255, 0, 1, 2,  3, 4, 5, 6,  7, 8, 9,10, 11,12,13,14,

   15,16,17,18, 19,20,21,22, 23,24,25,255, 255,255,255,255,

   255,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,

   41,42,43,44, 45,46,47,48, 49,50,51,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

   255,255,255,255, 255,255,255,255, 255,255,255,255, 255,255,255,255,

};

#endif