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| author | Pádraig Brady <P@draigBrady.com> | 2011-07-18 10:49:17 +0100 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2011-07-25 12:00:26 +0100 |
| commit | aeb5222a6d7f7e9be5b737e2dbaf71185a9946db (patch) | |
| tree | 662bc2fd206d7ff948efa26f255a7eea819d6e6c /doc | |
| parent | 42c4ba6ceb638e3b624cbf03e0e0da44691f620c (diff) | |
| download | coreutils-aeb5222a6d7f7e9be5b737e2dbaf71185a9946db.tar.xz | |
timeout: support sub-second timeouts
* src/timeout.c (settimeout): A new function to convert
from a floating point duration and call alarm() or
timer_settime() if that's available.
(parse_duration): Return a double rather than unsigned int.
(usage): Mention floating point is supported.
(main): Pass the double to settimeout() rather than
calling alarm() directly with the parsed int.
(cleanup): Likewise.
* doc/coreutils.texi (timeout invocation): Say floating point timeouts
now supported, and mention the caveat with resolution.
* bootstrap.conf: Include the timer-time gnulib module.
* tests/misc/timeout-parameters: Add a test with nanoseconds.
* NEWS: Mention the improvement.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/coreutils.texi | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index 424446c25..b406a3cfb 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -15694,7 +15694,7 @@ or a number. Also see @xref{Signal specifications}. @end table @cindex time units -@var{duration} is an integer followed by an optional unit: +@var{duration} is a floating point number followed by an optional unit: @display @samp{s} for seconds (the default) @samp{m} for minutes @@ -15702,6 +15702,8 @@ or a number. Also see @xref{Signal specifications}. @samp{d} for days @end display A duration of 0 disables the associated timeout. +Note that the actual timeout duration is dependent on system conditions, +which should be especially considered when specifying sub-second timeouts. @cindex exit status of @command{timeout} Exit status: |