feature_test_macros.7: Further tweaks to _REENTRANT description

[thirdparty/man-pages.git] / man7 / time.7

diff --git a/man7/time.7 b/man7/time.7
index 18a31393c2752256b8e0396bba5b01d15579f2a9..0cf3dcc12fd2dcf61170633d6ec3158cb033561f 100644 (file)
--- a/man7/time.7
+++ b/man7/time.7
@@ -1,5 +1,6 @@
 .\" Copyright (c) 2006 by Michael Kerrisk <mtk.manpages@gmail.com>
 .\"
+.\" %%%LICENSE_START(VERBATIM)
 .\" Permission is granted to make and distribute verbatim copies of this
 .\" manual provided the copyright notice and this permission notice are
 .\" preserved on all copies.
@@ -19,15 +20,16 @@
 .\"
 .\" Formatted or processed versions of this manual, if unaccompanied by
 .\" the source, must acknowledge the copyright and authors of this work.
+.\" %%%LICENSE_END
 .\"
 .\" 2008-06-24, mtk: added some details about where jiffies come into
 .\"     play; added section on high-resolution timers.
 .\"
-.TH TIME 7 2012-10-28 "Linux" "Linux Programmer's Manual"
+.TH TIME 7 2016-03-15 "Linux" "Linux Programmer's Manual"
 .SH NAME
 time \- overview of time and timers
 .SH DESCRIPTION
-.SS "Real time and process time"
+.SS Real time and process time
 .I "Real time"
 is defined as time measured from some fixed point,
 either from a standard point in the past
@@ -54,14 +56,14 @@ A program can determine the amount of CPU time it has consumed using
 .BR getrusage (2),
 or
 .BR clock (3).
-.SS "The hardware clock"
+.SS The hardware clock
 Most computers have a (battery-powered) hardware clock which the kernel
 reads at boot time in order to initialize the software clock.
 For further details, see
 .BR rtc (4)
 and
 .BR hwclock (8).
-.SS "The software clock, HZ, and jiffies"
+.SS The software clock, HZ, and jiffies
 The accuracy of various system calls that set timeouts,
 (e.g.,
 .BR select (2),
@@ -102,7 +104,7 @@ User-space applications can determine the value of this constant using
 .\" glibc gets this info with a little help from the ELF loader;
 .\" see glibc elf/dl-support.c and kernel fs/binfmt_elf.c.
 .\"
-.SS "High-resolution timers"
+.SS High-resolution timers
 Before Linux 2.6.21, the accuracy of timer and sleep system calls
 (see below) was also limited by the size of the jiffy.
 
@@ -121,7 +123,7 @@ or looking at the "resolution" entries in
 
 HRTs are not supported on all hardware architectures.
 (Support is provided on x86, arm, and powerpc, among others.)
-.SS "The Epoch"
+.SS The Epoch
 UNIX systems represent time in seconds since the
 .IR Epoch ,
 1970-01-01 00:00:00 +0000 (UTC).
@@ -137,7 +139,7 @@ provides similar information, but only with accuracy to the
 nearest second.
 The system time can be changed using
 .BR settimeofday (2).
-.SS "Broken-down time"
+.SS Broken-down time
 Certain library functions use a structure of
 type
 .I tm
@@ -155,7 +157,7 @@ string representations of the time are described in
 .BR strftime (3),
 and
 .BR strptime (3).
-.SS "Sleeping and setting timers"
+.SS Sleeping and setting timers
 Various system calls and functions allow a program to sleep
 (suspend execution) for a specified period of time; see
 .BR nanosleep (2),
@@ -188,6 +190,7 @@ in
 .nh
 .BR date (1),
 .BR time (1),
+.BR timeout (1),
 .BR adjtimex (2),
 .BR alarm (2),
 .BR clock_gettime (2),
@@ -207,6 +210,8 @@ in
 .BR clock (3),
 .BR clock_getcpuclockid (3),
 .BR ctime (3),
+.BR ntp_adjtime (3),
+.BR ntp_gettime (3),
 .BR pthread_getcpuclockid (3),
 .BR sleep (3),
 .BR strftime (3),