Date: Thu, 14 Nov 1996 06:41:25 -0600 (CST) From: Chris Csanady <ccsanady@friley216.res.iastate.edu> To: FreeBSD-gnats-submit@freebsd.org Subject: misc/2007: /usr/include/sys lacking timer arithmetic functions.. Message-ID: <199611141241.GAA01965@friley216.res.iastate.edu> Resent-Message-ID: <199611141250.EAA06739@freefall.freebsd.org>
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>Number: 2007
>Category: misc
>Synopsis: /usr/include/sys lacking timer arithmetic functions..
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Thu Nov 14 04:50:00 PST 1996
>Last-Modified:
>Originator: Chris Csanady
>Organization:
>Release: FreeBSD 3.0-CURRENT i386
>Environment:
>Description:
It would be nice if there were more timer arithmetic functions in sys/time.h.
The following is a patch from the relevent portion which I have taken from
NetBSD's.
>How-To-Repeat:
>Fix:
--- time.h.new Thu Nov 14 06:30:41 1996
***************
*** 84,89 ****
--- 84,107 ----
(((tvp)->tv_sec == (uvp)->tv_sec) ? \
((tvp)->tv_usec cmp (uvp)->tv_usec) : \
((tvp)->tv_sec cmp (uvp)->tv_sec))
+ #define timeradd(tvp, uvp, vvp) \
+ do { \
+ (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
+ (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
+ if ((vvp)->tv_usec >= 1000000) { \
+ (vvp)->tv_sec++; \
+ (vvp)->tv_usec -= 1000000; \
+ } \
+ } while (0)
+ #define timersub(tvp, uvp, vvp) \
+ do { \
+ (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
+ (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
+ if ((vvp)->tv_usec < 0) { \
+ (vvp)->tv_sec--; \
+ (vvp)->tv_usec += 1000000; \
+ } \
+ } while (0)
/*
* Names of the interval timers, and structure
>Audit-Trail:
>Unformatted:
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