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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2018-03-09 08:57:45 +0100 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2018-03-16 08:50:36 +0100 |
| commit | 39ad46695fb18b00d6164849cc6327e945fc6a93 (patch) | |
| tree | a2a7b8d5542f100c36c8885dcd646f9c8e19a4f8 /man7/time.7 | |
| parent | 8f8b643d85b9fbb7b483b83419a0d087739ab4da (diff) | |
| download | man-pages-39ad46695fb18b00d6164849cc6327e945fc6a93.tar.gz | |
time.7: Mention clock_gettime()/clock_settime() rather than [gs]ettimeofday()
gettimeofday() is declared obsolete by POSIX. Mention instead
the modern APIs for working with the realtime clock.
See https://bugzilla.kernel.org/show_bug.cgi?id=199049
Reported-by: Enrique Garcia <cquike@arcor.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man7/time.7')
| -rw-r--r-- | man7/time.7 | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/man7/time.7 b/man7/time.7 index a9282c45b9..7b84c2d44f 100644 --- a/man7/time.7 +++ b/man7/time.7 @@ -130,15 +130,18 @@ UNIX systems represent time in seconds since the .PP A program can determine the .I "calendar time" -using -.BR gettimeofday (2), -which returns time (in seconds and microseconds) that have +via the +.BR clock_gettime (2) +.BR CLOCK_REALTIME +clock, +which returns time (in seconds and nanoseconds) that have elapsed since the Epoch; .BR time (2) provides similar information, but only with accuracy to the nearest second. The system time can be changed using -.BR settimeofday (2). +.BR clock_settime (2). +.\" .SS Broken-down time Certain library functions use a structure of type |