From: Kees van Reeuwijk <reeuwijk@few.vu.nl>
Date: Wed, 14 Apr 2010 17:51:39 +0000 (+0000)
Subject: Add timerisclear() macro.
X-Git-Tag: v3.1.7~142
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/soc.html?a=commitdiff_plain;h=8005ac2c64181388c1a4d749094dd9d031b47528;p=minix.git

Add timerisclear() macro.
---

diff --git a/include/sys/time.h b/include/sys/time.h
index d295f8676..00bb13235 100644
--- a/include/sys/time.h
+++ b/include/sys/time.h
@@ -19,6 +19,10 @@ struct timezone {
 	int     tz_dsttime;     /* type of dst correction */
 };
 
+/* Operations on timevals. */
+#define timerclear(tp) (tp)->tv_sec = (tp)->tv_usec = 0L
+#define timerisset(tp) ((tp)->tv_sec || (tp)->tv_usec)
+
 int gettimeofday(struct timeval *_RESTRICT tp, void *_RESTRICT tzp);
 
 /* Compatibility with other Unix systems */