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added isc_time_seconds, isc_time_nanoseconds

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fixed isc_time_settoepoch and isc_time_isepoch
This commit is contained in:
David Lawrence
2000-03-10 17:50:36 +00:00
parent 114d0d1642
commit 11d732daac
2 changed files with 67 additions and 4 deletions
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45
lib/isc/win32/time.c
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@@ -28,6 +28,16 @@
#include <isc/assertions.h>
#include <isc/time.h>
/*
* struct FILETIME uses "100-nanoseconds intevals".
* NS / S = 1000000000 (10^9).
* While it is reasonably obvious that this makes the needed
* conversion factor 10^7, it is coded this way for additional clarity.
*/
#define NS_PER_S 1000000000
#define NS_INTERVAL 100
#define INTERVALS_PER_S (NS_PER_S / NS_INTERVAL)
/***
*** Intervals
***/
@@ -48,7 +58,8 @@ isc_interval_set(isc_interval_t *i,
REQUIRE(i != NULL);
REQUIRE(nanoseconds < 1000000000);
i->interval = (LONGLONG)seconds * 10000000 + nanoseconds / 100;
i->interval = (LONGLONG)seconds * INTERVALS_PER_S
+ nanoseconds / NS_INTERVAL;
}
isc_boolean_t
@@ -81,7 +92,8 @@ isc_time_settoepoch(isc_time_t *t) {
REQUIRE(t != NULL);
t->absolute = epoch;
t->absolute.dwLowDateTime = 0;
t->absolute.dwHighDateTime = 0;
}
isc_boolean_t
@@ -92,7 +104,8 @@ isc_time_isepoch(isc_time_t *t) {
REQUIRE(t != NULL);
if (CompareFileTime(&t->absolute, &epoch) == 0)
if (t->absolute.dwLowDateTime == 0 &&
t->absolute.dwHighDateTime == 0)
return (ISC_TRUE);
return (ISC_FALSE);
@@ -207,3 +220,29 @@ isc_time_microdiff(isc_time_t *t1, isc_time_t *t2) {
return (i3);
}
isc_uint32_t
isc_time_seconds(isc_time_t *t) {
ULARGE_INTEGER i;
i.LowPart = t->absolute.dwLowDateTime;
i.HighPart = t->absolute.dwHighDateTime;
INSIST(i.QuadPart / INTERVALS_PER_S <= (isc_uint32_t)-1);
return ((isc_uint32_t)(i.QuadPart / INTERVALS_PER_S));
}
isc_uint32_t
isc_time_nanoseconds(isc_time_t *t) {
ULARGE_INTEGER i;
i.LowPart = t->absolute.dwLowDateTime;
i.HighPart = t->absolute.dwHighDateTime;
i.QuadPart -= isc_time_seconds(t);
ENSURE(i.QuadPart * NS_INTERVAL < NS);
return ((isc_uint32_t)(i.QuadPart * NS_INTERVAL));
}