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Added text describing what happens when the buffer given to read(2) 

is too small to return information about the next event, and noting
the behaviour change in 2.6.21.
This commit is contained in:
Michael Kerrisk 2007-05-27 14:21:25 +00:00
parent 78f2eeab03
commit c7e3ee6faa
1 changed files with 11 additions and 1 deletions
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12
man7/inotify.7
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@ -20,7 +20,7 @@
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.TH INOTIFY 7 2006-02-07 "Linux 2.6.15" "Linux Programmer's Manual"
.TH INOTIFY 7 2007-06-03 "Linux" "Linux Programmer's Manual"
.SH NAME
inotify \- monitoring file system events
.SH DESCRIPTION
@ -126,6 +126,16 @@ the length of each
.I inotify_event
structure is thus
.IR "sizeof(inotify_event)+len" .
The behaviour when the buffer given to
.BR read (2)
is too small to return information about the next event depends
on the kernel version: in kernels before 2.6.21,
.BR read (2)
returns 0; since kernel 2.6.21,
.BR read (2)
fails with the error
.BR EINVAL .
.SS inotify events
The
.BR inotify_add_watch (2)