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authorMichael Kerrisk <mtk.manpages@gmail.com>2016-11-21 15:02:46 +0100
committerMichael Kerrisk <mtk.manpages@gmail.com>2016-11-21 23:34:22 +0100
commit4b76fffb6aca4ebad81ec43c4558f2c5849f93f2 (patch)
treee023177590210980aef85834df73c671d5643236 /man2/timerfd_create.2
parentcc83f4d1bbd250ca72d4bbac65195e7e6519cdbf (diff)
downloadman-pages-4b76fffb6aca4ebad81ec43c4558f2c5849f93f2.tar.gz
timerfd_create.2: Rework description of clocks as a hanging list
Done in part as preparation for following patches. Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man2/timerfd_create.2')
-rw-r--r--man2/timerfd_create.216
1 files changed, 8 insertions, 8 deletions
diff --git a/man2/timerfd_create.2 b/man2/timerfd_create.2
index edb2407701..bad455dddf 100644
--- a/man2/timerfd_create.2
+++ b/man2/timerfd_create.2
@@ -66,10 +66,7 @@ and returns a file descriptor that refers to that timer.
The
.I clockid
argument specifies the clock that is used to mark the progress
-of the timer, and must be either
-.B CLOCK_REALTIME
-or
-.BR CLOCK_MONOTONIC .
+of the timer, and must one of the following:
.\" FIXME
.\" Additional clocks are now supported:
.\" CLOCK_REALTIME_ALARM and CLOCK_BOOTTIME_ALARM
@@ -79,12 +76,15 @@ or
.\" CLOCK_BOOTTIME
.\" Since Linux 3.15
.\" commit 4a2378a943f09907fb1ae35c15de917f60289c14
+.TP
.B CLOCK_REALTIME
-is a settable system-wide clock.
+A settable system-wide real-time clock.
+.TP
.B CLOCK_MONOTONIC
-is a nonsettable clock that is not affected
-by discontinuous changes in the system clock
-(e.g., manual changes to system time).
+A nonsettable monotonically increasing clock that measures time
+from some unspecified point in the past that does not change
+after system startup.
+.PP
The current value of each of these clocks can be retrieved using
.BR clock_gettime (2).