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poll.2: Clarify wording of 'timeout' as a "minimum" interval 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Michael Kerrisk 2013-09-04 10:28:50 +02:00
parent 82a6092b03
commit 0d9101c438
1 changed files with 5 additions and 5 deletions
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10
man2/poll.2
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@ -28,7 +28,7 @@
.\" 2006-07-01, mtk, Added POLLRDHUP + various other wording and
.\" formatting changes.
.\"
.TH POLL 2 2013-07-30 "Linux" "Linux Programmer's Manual"
.TH POLL 2 2013-09-04 "Linux" "Linux Programmer's Manual"
.SH NAME
poll, ppoll \- wait for some event on a file descriptor
.SH SYNOPSIS
@ -122,12 +122,12 @@ blocks until one of the events occurs.
The
.I timeout
argument specifies the minimum number of milliseconds that
argument specifies the number of milliseconds that
.BR poll ()
will block.
(This interval will be rounded up to the system clock granularity,
should block waiting for a file descriptor to become ready.
This interval will be rounded up to the system clock granularity,
and kernel scheduling delays mean that the blocking interval
may overrun by a small amount.)
may overrun by a small amount.
Specifying a negative value in
.I timeout
means an infinite timeout.