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| author | kib <kib@FreeBSD.org> | 2009-12-29 14:29:08 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2009-12-29 14:29:08 +0000 |
| commit | fb28939ce7beb7a398a69e31346008d37d6dfbb0 (patch) | |
| tree | fac649e7b60d8011808e2d216eb4a24fb06604fe /lib | |
| parent | 26975ab6ef921dba95522c38ba45b731803f4357 (diff) | |
| download | FreeBSD-src-fb28939ce7beb7a398a69e31346008d37d6dfbb0.zip FreeBSD-src-fb28939ce7beb7a398a69e31346008d37d6dfbb0.tar.gz | |
Document CLOCK_SECOND, add cross-reference from time(3) to clock_gettime(2).
Based on submission by: pluknet gmail com
MFC after: 3 days
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/gen/time.3 | 1 | ||||
| -rw-r--r-- | lib/libc/sys/clock_gettime.2 | 9 |
2 files changed, 7 insertions, 3 deletions
diff --git a/lib/libc/gen/time.3 b/lib/libc/gen/time.3 index 2770e49..d022e06 100644 --- a/lib/libc/gen/time.3 +++ b/lib/libc/gen/time.3 @@ -66,6 +66,7 @@ The function may fail for any of the reasons described in .Xr gettimeofday 2 . .Sh SEE ALSO +.Xr clock_gettime 2 , .Xr gettimeofday 2 , .Xr ctime 3 .Sh STANDARDS diff --git a/lib/libc/sys/clock_gettime.2 b/lib/libc/sys/clock_gettime.2 index 242af1c..485cd25 100644 --- a/lib/libc/sys/clock_gettime.2 +++ b/lib/libc/sys/clock_gettime.2 @@ -29,7 +29,7 @@ .\" .\" $FreeBSD$ .\" -.Dd November 4, 2006 +.Dd December 29, 2009 .Dt CLOCK_GETTIME 2 .Os .Sh NAME @@ -70,10 +70,13 @@ which starts at zero when the kernel boots and increments monotonically in SI seconds while the machine is running, .Dv CLOCK_VIRTUAL for time that increments only when -the CPU is running in user mode on behalf of the calling process, or +the CPU is running in user mode on behalf of the calling process, .Dv CLOCK_PROF for time that increments when the CPU is running in user or -kernel mode. +kernel mode, or +.Dv CLOCK_SECOND +which returns the current second without performing a full time counter +query, using in-kernel cached value of current second. .Pp The structure pointed to by .Fa tp |
