r17766: Getting ready to properly expose 100ns times on

the wire. Move the internals of nt_time functions
to use struct timespecs.
Jeremy.
(This used to be commit 4ece92f7ef070c86ee7c6f523a207cfaccf84478)

1 files changed, 68 insertions, 29 deletions

diff --git a/source3/lib/time.c b/source3/lib/time.c
index 0bfdfac856b..9c5f412a9d0 100644
--- a/source3/lib/time.c
+++ b/source3/lib/time.c
@@ -178,22 +178,28 @@ int TimeDiff(time_t t)
  Interpret an 8 byte "filetime" structure to a time_t
  It's originally in "100ns units since jan 1st 1601"
 
- An 8 byte value of 0xffffffffffffffff will be returned as (time_t)0.
+ An 8 byte value of 0xffffffffffffffff will be returned as a timespec of
+
+	tv_sec = 0
+	tv_nsec = 0;
 
  Returns GMT.
 ****************************************************************************/
 
-time_t nt_time_to_unix(NTTIME *nt)
+struct timespec nt_time_to_unix_timespec(NTTIME *nt)
 {
 	double d;
-	time_t ret;
+	struct timespec ret;
 	/* The next two lines are a fix needed for the 
 		broken SCO compiler. JRA. */
 	time_t l_time_min = TIME_T_MIN;
 	time_t l_time_max = TIME_T_MAX;
 
-	if (nt->high == 0 || (nt->high == 0xffffffff && nt->low == 0xffffffff)) {
-		return(0);
+	if ((nt->high == 0 && nt->low == 0 )||
+			(nt->high == 0xffffffff && nt->low == 0xffffffff)) {
+		ret.tv_sec = 0;
+		ret.tv_nsec = 0;
+		return ret;
 	}
 
 	d = ((double)nt->high)*4.0*(double)(1<<30);
@@ -204,15 +210,26 @@ time_t nt_time_to_unix(NTTIME *nt)
 	d -= TIME_FIXUP_CONSTANT;
 
 	if (d <= l_time_min) {
-		return (l_time_min);
+		ret.tv_sec = l_time_min;
+		ret.tv_nsec = 0;
+		return ret;
 	}
 
 	if (d >= l_time_max) {
-		return (l_time_max);
+		ret.tv_sec = l_time_max;
+		ret.tv_nsec = 0;
+		return ret;
 	}
 
-	ret = (time_t)(d+0.5);
-	return(ret);
+	ret.tv_sec = (time_t)d;
+	ret.tv_nsec = (long) ((d*1.0e9) - ((double)ret.tv_sec)*1.0e9);
+	return ret;
+}
+
+time_t nt_time_to_unix(NTTIME *nt)
+{
+	struct timespec ts = nt_time_to_unix_timespec(nt);
+	return ts.tv_sec;
 }
 
 /****************************************************************************
@@ -224,10 +241,10 @@ time_t nt_time_to_unix(NTTIME *nt)
  if the NTTIME was 5 seconds, the time_t is 5 seconds. JFM
 ****************************************************************************/
 
-time_t nt_time_to_unix_abs(const NTTIME *nt)
+struct timespec nt_time_to_unix_abs(const NTTIME *nt)
 {
 	double d;
-	time_t ret;
+	struct timespec ret;
 	/* The next two lines are a fix needed for the 
 	   broken SCO compiler. JRA. */
 	time_t l_time_min = TIME_T_MIN;
@@ -235,11 +252,15 @@ time_t nt_time_to_unix_abs(const NTTIME *nt)
 	NTTIME neg_nt;
 
 	if (nt->high == 0) {
-		return(0);
+		ret.tv_sec = 0;
+		ret.tv_nsec = 0;
+		return ret;
 	}
 
 	if (nt->high==0x80000000 && nt->low==0) {
-		return (time_t)-1;
+		ret.tv_sec = (time_t)-1;
+		ret.tv_nsec = 0;
+		return ret;
 	}
 
 	/* reverse the time */
@@ -252,64 +273,82 @@ time_t nt_time_to_unix_abs(const NTTIME *nt)
 	d *= 1.0e-7;
   
 	if (!(l_time_min <= d && d <= l_time_max)) {
-		return(0);
+		ret.tv_sec = 0;
+		ret.tv_nsec = 0;
+		return ret;
 	}
 
-	ret = (time_t)(d+0.5);
-
-	return(ret);
+	ret.tv_sec = (time_t)d;
+	ret.tv_nsec = (long) ((d*1.0e9) - ((double)ret.tv_sec)*1.0e9);
+	return ret;
 }
 
 /****************************************************************************
- Interprets an nt time into a unix time_t.
+ Interprets an nt time into a unix struct timespec.
  Differs from nt_time_to_unix in that an 8 byte value of 0xffffffffffffffff
  will be returned as (time_t)-1, whereas nt_time_to_unix returns 0 in this case.
 ****************************************************************************/
 
-time_t interpret_long_date(char *p)
+struct timespec interpret_long_date(char *p)
 {
 	NTTIME nt;
 	nt.low = IVAL(p,0);
 	nt.high = IVAL(p,4);
 	if (nt.low == 0xFFFFFFFF && nt.high == 0xFFFFFFFF) {
-		return (time_t)-1;
+		struct timespec ret;
+		ret.tv_sec = (time_t)-1;
+		ret.tv_nsec = 0;
+		return ret;
 	}
-	return nt_time_to_unix(&nt);
+	return nt_time_to_unix_timespec(&nt);
 }
 
 /****************************************************************************
- Put a 8 byte filetime from a time_t. Uses GMT.
+ Put a 8 byte filetime from a struct timespec. Uses GMT.
 ****************************************************************************/
 
-void unix_to_nt_time(NTTIME *nt, time_t t)
+void unix_timespec_to_nt_time(NTTIME *nt, struct timespec ts)
 {
 	double d;
 
-	if (t==0) {
+	if (ts.tv_sec ==0 && ts.tv_nsec == 0) {
 		nt->low = 0;
 		nt->high = 0;
 		return;
 	}
-	if (t == TIME_T_MAX) {
+	if (ts.tv_sec == TIME_T_MAX) {
 		nt->low = 0xffffffff;
 		nt->high = 0x7fffffff;
 		return;
 	}		
-	if (t == (time_t)-1) {
+	if (ts.tv_sec == (time_t)-1) {
 		nt->low = 0xffffffff;
 		nt->high = 0xffffffff;
 		return;
 	}		
 
-	d = (double)(t);
+	d = (double)(ts.tv_sec);
 	d += TIME_FIXUP_CONSTANT;
 	d *= 1.0e7;
+	d += ((double)ts.tv_nsec / 100.0);
 
 	nt->high = (uint32)(d * (1.0/(4.0*(double)(1<<30))));
 	nt->low  = (uint32)(d - ((double)nt->high)*4.0*(double)(1<<30));
 }
 
 /****************************************************************************
+ Put a 8 byte filetime from a time_t. Uses GMT.
+****************************************************************************/
+
+void unix_to_nt_time(NTTIME *nt, time_t t)
+{
+	struct timespec ts;
+	ts.tv_sec = t;
+	ts.tv_nsec = 0;
+	unix_timespec_to_nt_time(nt, ts);
+}
+
+/****************************************************************************
  Convert a time_t to a NTTIME structure
 
  This is an absolute version of the one above.
@@ -356,10 +395,10 @@ void unix_to_nt_time_abs(NTTIME *nt, time_t t)
  pointed to by p.
 ****************************************************************************/
 
-void put_long_date(char *p, time_t t)
+void put_long_date(char *p, struct timespec ts)
 {
 	NTTIME nt;
-	unix_to_nt_time(&nt, t);
+	unix_timespec_to_nt_time(&nt, ts);
 	SIVAL(p, 0, nt.low);
 	SIVAL(p, 4, nt.high);
 }