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| author | brooks <brooks@FreeBSD.org> | 2013-07-25 20:53:15 +0000 |
|---|---|---|
| committer | brooks <brooks@FreeBSD.org> | 2013-07-25 20:53:15 +0000 |
| commit | 0f2f7957393d210c4606f7096c07a8f0bcebc03c (patch) | |
| tree | ad44691e1addba0d21f967167fc74cb9be073bd6 | |
| parent | 44afceea6d3a60d1a7a1c65c0c73d00a05bc85e3 (diff) | |
| download | FreeBSD-src-0f2f7957393d210c4606f7096c07a8f0bcebc03c.zip FreeBSD-src-0f2f7957393d210c4606f7096c07a8f0bcebc03c.tar.gz | |
Document the sbinuptime() and getsbinuptime() functions introduced in
r247452.
Sponsored by: DARPA, AFRL
| -rw-r--r-- | share/man/man9/Makefile | 4 | ||||
| -rw-r--r-- | share/man/man9/microuptime.9 | 25 |
2 files changed, 23 insertions, 6 deletions
diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile index 2409ffb..86e89a7 100644 --- a/share/man/man9/Makefile +++ b/share/man/man9/Makefile @@ -954,7 +954,9 @@ MLINKS+=microuptime.9 binuptime.9 \ microuptime.9 getbinuptime.9 \ microuptime.9 getmicrouptime.9 \ microuptime.9 getnanouptime.9 \ - microuptime.9 nanouptime.9 + microuptime.9 getsbinuptime.9 \ + microuptime.9 nanouptime.9 \ + microuptime.9 sbinuptime.9 MLINKS+=mi_switch.9 cpu_switch.9 \ mi_switch.9 cpu_throw.9 MLINKS+=mtx_pool.9 mtx_pool_alloc.9 \ diff --git a/share/man/man9/microuptime.9 b/share/man/man9/microuptime.9 index 8f9985f..5a9a71b 100644 --- a/share/man/man9/microuptime.9 +++ b/share/man/man9/microuptime.9 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd September 16, 2004 +.Dd July 25, 2013 .Dt MICROUPTIME 9 .Os .Sh NAME @@ -33,7 +33,9 @@ .Nm microuptime , .Nm getmicrouptime , .Nm nanouptime , -.Nm getnanouptime +.Nm getnanouptime , +.Nm sbinuptime , +.Nm getsbinuptime .Nd get the time elapsed since boot .Sh SYNOPSIS .In sys/time.h @@ -49,6 +51,10 @@ .Fn nanouptime "struct timespec *ts" .Ft void .Fn getnanouptime "struct timespec *tsp" +.Ft sbintime_t +.Fn sbinuptime "void" +.Ft sbintime_t +.Fn getsbinuptime "void" .Sh DESCRIPTION The .Fn binuptime @@ -71,28 +77,37 @@ and .Fn getnanouptime functions store the elapsed time as a .Vt "struct timespec" . +The +.Fn sbinuptime +and +.Fn getsbinuptime +functions return the time elapsed since boot as a +.Vt "sbintime_t" . .Pp The .Fn binuptime , .Fn microuptime , +.Fn nanouptime , and -.Fn nanouptime +.Fn sbinuptime functions always query the timecounter to return the current time as precisely as possible. Whereas .Fn getbinuptime , .Fn getmicrouptime , +.Fn getnanouptime , and -.Fn getnanouptime +.Fn getsbinuptime functions are abstractions which return a less precise, but faster to obtain, time. .Pp The intent of the .Fn getbinuptime , .Fn getmicrouptime , +.Fn getnanouptime , and -.Fn getnanouptime +.Fn getsbinuptime functions is to enforce the user's preference for timer accuracy versus execution time. .Sh SEE ALSO |
