diff options
| -rw-r--r-- | lib/libc/sys/getitimer.2 | 46 |
1 files changed, 37 insertions, 9 deletions
diff --git a/lib/libc/sys/getitimer.2 b/lib/libc/sys/getitimer.2 index 8dc06adf3cb..1c96c13d493 100644 --- a/lib/libc/sys/getitimer.2 +++ b/lib/libc/sys/getitimer.2 @@ -1,4 +1,4 @@ -.\" $OpenBSD: getitimer.2,v 1.30 2019/01/18 09:36:47 cheloha Exp $ +.\" $OpenBSD: getitimer.2,v 1.31 2019/01/20 04:55:06 schwarze Exp $ .\" $NetBSD: getitimer.2,v 1.6 1995/10/12 15:40:54 jtc Exp $ .\" .\" Copyright (c) 1983, 1991, 1993 @@ -30,7 +30,7 @@ .\" .\" @(#)getitimer.2 8.2 (Berkeley) 12/11/93 .\" -.Dd $Mdocdate: January 18 2019 $ +.Dd $Mdocdate: January 20 2019 $ .Dt GETITIMER 2 .Os .Sh NAME @@ -145,9 +145,7 @@ Because this signal may interrupt in-progress system calls, programs using this timer must be prepared to restart interrupted system calls. .Pp -The remaining five functions are in fact macros for manipulating time -values, defined in -.In sys/time.h . +The remaining functions are implemented as macros: .Pp .Fn timerclear "a" sets the time value in @@ -160,9 +158,8 @@ tests if the time value in is non-zero. .Pp .Fn timerisvalid "a" -tests if the microsecond value in -.Fa a -is greater than or equal to zero and less than 1 million. +tests the validity of the microsecond value in +.Fa a . .Pp .Fn timercmp a b CMP compares two time values in the form @@ -185,7 +182,21 @@ and stores the result in adds two timers and stores the result in .Fa res . .Sh RETURN VALUES -.Rv -std +.Rv -std getitimer setitimer +.Pp +.Fn timerisset +returns a non-zero value if the time value in +.Fa a +is non-zero or 0 otherwise. +.Pp +.Fn timerisvalid +returns 1 if the microsecond value in +.Fa a +is greater than or equal to zero and less than 1 million, +or 0 otherwise. +.Pp +.Fn timercmp +returns 1 if the given relation is true or 0 otherwise. .Sh ERRORS .Fn getitimer and @@ -232,3 +243,20 @@ and .Fn setitimer system calls first appeared in .Bx 4.1c . +.Pp +The macros +.Fn timerclear , +.Fn timerisset , +and +.Fn timercmp +first appeared in +.Bx 4.1c , +.Fn timersub +and +.Fn timeradd +in +.Nx 1.1 , +and +.Fn timerisvalid +in +.Ox 6.5 . |