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authorBjörn Jacke <bj@sernet.de>2010-08-30 17:56:37 +0200
committerBjörn Jacke <bj@sernet.de>2010-08-31 10:26:23 +0200
commit73ad77f20a136b74a4ae381c8b97acf248d3c8fe (patch)
tree854ee7e4f486c1552cae502fea62c6365dc0ff7d /lib/util
parent0ca6a73d011abd20d8a9256f6dfe3517bd1a27ef (diff)
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lib/util: add nsec_time_diff to calulate diffs from timespecs
Diffstat (limited to 'lib/util')
-rw-r--r--lib/util/time.c9
-rw-r--r--lib/util/time.h5
2 files changed, 14 insertions, 0 deletions
diff --git a/lib/util/time.c b/lib/util/time.c
index 5557346b9b..5ecf93cb77 100644
--- a/lib/util/time.c
+++ b/lib/util/time.c
@@ -409,6 +409,15 @@ _PUBLIC_ int64_t usec_time_diff(const struct timeval *tv1, const struct timeval
return (sec_diff * 1000000) + (int64_t)(tv1->tv_usec - tv2->tv_usec);
}
+/**
+ return (tp1 - tp2) in microseconds
+*/
+_PUBLIC_ int64_t nsec_time_diff(const struct timespec *tp1, const struct timespec *tp2)
+{
+ int64_t sec_diff = tp1->tv_sec - tp2->tv_sec;
+ return (sec_diff * 1000000000) + (int64_t)(tp1->tv_nsec - tp2->tv_nsec);
+}
+
/**
return a zero timeval
diff --git a/lib/util/time.h b/lib/util/time.h
index 90890cdbc8..720a262b29 100644
--- a/lib/util/time.h
+++ b/lib/util/time.h
@@ -149,6 +149,11 @@ _PUBLIC_ NTTIME nttime_from_string(const char *s);
_PUBLIC_ int64_t usec_time_diff(const struct timeval *tv1, const struct timeval *tv2);
/**
+ return (tp1 - tp2) in nanoseconds
+*/
+_PUBLIC_ int64_t nsec_time_diff(const struct timespec *tp1, const struct timespec *tp2);
+
+/**
return a zero timeval
*/
_PUBLIC_ struct timeval timeval_zero(void);