Date: Sun, 22 Aug 1999 19:59:19 -0400 (EDT) From: Kelly Yancey <kbyanc@kronos.alcnet.com> To: FreeBSD-gnats-submit@freebsd.org Subject: misc/13326: additional timeval interfaces for <sys/time.h> Message-ID: <199908222359.TAA26773@kronos.alcnet.com>
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>Number: 13326
>Category: misc
>Synopsis: additional timeval interfaces for <sys/time.h>
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Sun Aug 22 17:00:00 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator: Kelly Yancey
>Release: FreeBSD 3.2-STABLE i386
>Organization:
>Environment:
>Description:
2 new interfaces for manipulating timeval structures in addition to
those provided for NetBSD/OpenBSD compatibility in <sys/time.h>
Admittingly, they aren't strickly necissary, but seeing as how they
increase readability of code which manipulates timevals, don't add
any bloat unless they are used (in which care they aren't bloat),
and extend functionality already provided by <sys/time.h>, I think
that they would make good additions to FreeBSD.
--- /usr/include/sys/time.h.orig Sun Aug 22 18:33:57 1999
+++ /usr/include/sys/time.h Sun Aug 22 18:45:12 1999
@@ -224,6 +224,23 @@
} while (0)
#endif
+#ifndef KERNEL /* additional timeval manipulations */
+#define timermul(tvp, uvp, x) \
+ do { \
+ (uvp)->tv_sec = (tvp)->tv_sec * x; \
+ (uvp)->tv_usec = (tvp)->tv_usec * x; \
+ while((uvp)->tv_usec > 1000000) { \
+ (uvp)->tv_sec++; \
+ (uvp)->tv_usec -= 1000000; \
+ } \
+ } while(0)
+#define timerdiv(tvp, uvp, x) \
+ do { \
+ (uvp)->tv_sec = (tvp)->tv_sec / x; \
+ (uvp)->tv_usec = (tvp)->tv_usec / x; \
+ } while(0)
+#endif
+
/*
* Names of the interval timers, and structure
* defining a timer setting.
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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