/* crypto/tmdiff.c */

 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)

  * All rights reserved.

  *

  * This package is an SSL implementation written

  * by Eric Young (eay@cryptsoft.com).

  * The implementation was written so as to conform with Netscapes SSL.

  * 

  * This library is free for commercial and non-commercial use as long as

  * the following conditions are aheared to.  The following conditions

  * apply to all code found in this distribution, be it the RC4, RSA,

  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation

  * included with this distribution is covered by the same copyright terms

  * except that the holder is Tim Hudson (tjh@cryptsoft.com).

  * 

  * Copyright remains Eric Young's, and as such any Copyright notices in

  * the code are not to be removed.

  * If this package is used in a product, Eric Young should be given attribution

  * as the author of the parts of the library used.

  * This can be in the form of a textual message at program startup or

  * in documentation (online or textual) provided with the package.

  * 

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met:

  * 1. Redistributions of source code must retain the copyright

  *    notice, this list of conditions and the following disclaimer.

  * 2. Redistributions in binary form must reproduce the above copyright

  *    notice, this list of conditions and the following disclaimer in the

  *    documentation and/or other materials provided with the distribution.

  * 3. All advertising materials mentioning features or use of this software

  *    must display the following acknowledgement:

  *    "This product includes cryptographic software written by

  *     Eric Young (eay@cryptsoft.com)"

  *    The word 'cryptographic' can be left out if the rouines from the library

  *    being used are not cryptographic related :-).

  * 4. If you include any Windows specific code (or a derivative thereof) from 

  *    the apps directory (application code) you must include an acknowledgement:

  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"

  * 

  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND

  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

  * SUCH DAMAGE.

  * 

  * The licence and distribution terms for any publically available version or

  * derivative of this code cannot be changed.  i.e. this code cannot simply be

  * copied and put under another distribution licence

  * [including the GNU Public Licence.]

  */

 #include <stdio.h>

 #include <stdlib.h>

 #include "cryptlib.h"

 #include <openssl/tmdiff.h>

 #if !defined(OPENSSL_SYS_MSDOS)

 #include OPENSSL_UNISTD

 #endif

 #ifdef TIMEB

 #undef OPENSSL_SYS_WIN32

 #undef TIMES

 #endif

 #if !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32) && !(defined(OPENSSL_SYS_VMS) || defined(__DECC)) && !defined(OPENSSL_SYS_MACOSX_RHAPSODY) && !defined(OPENSSL_SYS_VXWORKS)

 # define TIMES

 #endif

 #ifdef OPENSSL_SYS_NETWARE

 #undef TIMES

 #endif

 #if !defined(_IRIX) || defined (OPENSSL_SYS_NETWARE)

 #  include <time.h>

 #endif

 #ifdef TIMES

 #  include <sys/types.h>

 #  include <sys/times.h>

 #endif

 /* Depending on the VMS version, the tms structure is perhaps defined.

    The __TMS macro will show if it was.  If it wasn't defined, we should

    undefine TIMES, since that tells the rest of the program how things

    should be handled.				-- Richard Levitte */

 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__TMS)

 #undef TIMES

 #endif

 #if defined(sun) || defined(__ultrix)

 #define _POSIX_SOURCE

 #include <limits.h>

 #include <sys/param.h>

 #endif

 #if !defined(TIMES) && !defined(OPENSSL_SYS_VXWORKS) && !defined(OPENSSL_SYS_NETWARE)

 #include <sys/timeb.h>

 #endif

 #ifdef OPENSSL_SYS_WIN32

 #include <windows.h>

 #endif

 /* The following if from times(3) man page.  It may need to be changed */

 #ifndef HZ

 # if defined(_SC_CLK_TCK) \

      && (!defined(OPENSSL_SYS_VMS) || __CTRL_VER >= 70000000)

 /* #  define HZ ((double)sysconf(_SC_CLK_TCK)) */

 //#  define HZ sysconf(_SC_CLK_TCK) TODO  to uncomment N COMMENT NEXT line

 #  define HZ 100.0

 # else

 #  ifndef CLK_TCK

 #   ifndef _BSD_CLK_TCK_ /* FreeBSD hack */

 #    define HZ  100.0

 #   else /* _BSD_CLK_TCK_ */

 #    define HZ ((double)_BSD_CLK_TCK_)

 #   endif

 #  else /* CLK_TCK */

 #   define HZ ((double)CLK_TCK)

 #  endif

 # endif

 #endif

 struct ms_tm

 	{

 #ifdef TIMES

 	struct tms ms_tms;

 #else

 #  ifdef OPENSSL_SYS_WIN32

 	HANDLE thread_id;

 	FILETIME ms_win32;

 #  elif defined (OPENSSL_SYS_NETWARE)

    clock_t ms_clock;

 #  else

 #    ifdef OPENSSL_SYS_VXWORKS

           unsigned long ticks;

 #    else

 	struct timeb ms_timeb;

 #    endif

 #  endif

 #endif

 	};

 EXPORT_C MS_TM *ms_time_new(void)

 	{

 	MS_TM *ret;

 	ret=(MS_TM *)OPENSSL_malloc(sizeof(MS_TM));

 	if (ret == NULL)

 		return(NULL);

 	memset(ret,0,sizeof(MS_TM));

 #ifdef OPENSSL_SYS_WIN32

 	ret->thread_id=GetCurrentThread();

 #endif

 	return ret;

 	}

 EXPORT_C void ms_time_free(MS_TM *a)

 	{

 	if (a != NULL)

 		OPENSSL_free(a);

 	}

 EXPORT_C void ms_time_get(MS_TM *tm)

 	{

 #ifdef OPENSSL_SYS_WIN32

 	FILETIME tmpa,tmpb,tmpc;

 #endif

 #ifdef TIMES

 	//times(&tm->ms_tms);TODO  to uncomment

 #else

 #  ifdef OPENSSL_SYS_WIN32

 	GetThreadTimes(tm->thread_id,&tmpa,&tmpb,&tmpc,&(tm->ms_win32));

 #  elif defined (OPENSSL_SYS_NETWARE)

    tm->ms_clock = clock();

 #  else

 #    ifdef OPENSSL_SYS_VXWORKS

         tm->ticks = tickGet();

 #    else

 	ftime(&tm->ms_timeb);

 #    endif

 #  endif

 #endif

 	}

 EXPORT_C double ms_time_diff(MS_TM *a, MS_TM *b)

 	{

 	double ret;

 #ifdef TIMES

 	ret = HZ;

 	ret = (b->ms_tms.tms_utime-a->ms_tms.tms_utime) / ret;

 #else

 # ifdef OPENSSL_SYS_WIN32

 	{

 #ifdef __GNUC__

 	signed long long la,lb;

 #else

 	signed _int64 la,lb;

 #endif

 	la=a->ms_win32.dwHighDateTime;

 	lb=b->ms_win32.dwHighDateTime;

 	la<<=32;

 	lb<<=32;

 	la+=a->ms_win32.dwLowDateTime;

 	lb+=b->ms_win32.dwLowDateTime;

 	ret=((double)(lb-la))/1e7;

 	}

 # elif defined (OPENSSL_SYS_NETWARE)

     ret= (double)(b->ms_clock - a->ms_clock);

 # else

 #  ifdef OPENSSL_SYS_VXWORKS

         ret = (double)(b->ticks - a->ticks) / (double)sysClkRateGet();

 #  else

 	ret=	 (double)(b->ms_timeb.time-a->ms_timeb.time)+

 		(((double)b->ms_timeb.millitm)-

 		((double)a->ms_timeb.millitm))/1000.0;

 #  endif

 # endif

 #endif

 	return((ret < 0.0000001)?0.0000001:ret);

 	}

 EXPORT_C int ms_time_cmp(const MS_TM *a, const MS_TM *b)

 	{

 	double d;

 	int ret;

 #ifdef TIMES

 	d = HZ;

 	d = (b->ms_tms.tms_utime-a->ms_tms.tms_utime) / d;

 #else

 # ifdef OPENSSL_SYS_WIN32

 	d =(b->ms_win32.dwHighDateTime&0x000fffff)*10+b->ms_win32.dwLowDateTime/1e7;

 	d-=(a->ms_win32.dwHighDateTime&0x000fffff)*10+a->ms_win32.dwLowDateTime/1e7;

 # elif defined (OPENSSL_SYS_NETWARE)

     d= (double)(b->ms_clock - a->ms_clock);

 # else

 #  ifdef OPENSSL_SYS_VXWORKS

         d = (b->ticks - a->ticks);

 #  else

 	d=	 (double)(b->ms_timeb.time-a->ms_timeb.time)+

 		(((double)b->ms_timeb.millitm)-(double)a->ms_timeb.millitm)/1000.0;

 #  endif

 # endif

 #endif

 	if (d == 0.0)

 		ret=0;

 	else if (d < 0)

 		ret= -1;

 	else

 		ret=1;

 	return(ret);

 	}