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.IX Title "File::ChangeNotify::Watcher::KQueue 3"
.TH File::ChangeNotify::Watcher::KQueue 3 "2009-12-07" "perl v5.8.7" "User Contributed Perl Documentation"
.SH "NAME"
File::ChangeNotify::Watcher::KQueue \- KQueue\-based watcher for BSD systems.
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This class implements watching using KQueue. This is a \s-1BSD\s0 alternative to
Linux's Inotify and similar event-based systems.
.SH "CAVEATS"
.IX Header "CAVEATS"
Although this watcher is more efficient and accurate than the
\&\f(CW\*(C`File::ChangeNotify::Watcher::Default\*(C'\fR class, in order to monitor files and
directories, it must open filehandles to each of them. Because many \s-1BSD\s0
systems have relatively low defaults for the maximum number of files each
process can open, you may find you run out of file descriptors.
.PP
On FreeBSD, you can check (and alter) your system's settings with \f(CW\*(C`sysctl\*(C'\fR if
necessary. The important keys are: \f(CW\*(C`kern.maxfiles\*(C'\fR and
\&\f(CW\*(C`kern.maxfilesperproc\*(C'\fR.  You can see how many files your system current has
open with \f(CW\*(C`kern.openfiles\*(C'\fR.
.SH "AUTHOR"
.IX Header "AUTHOR"
Dan Thomas, <dan@cpan.org>
.SH "SUPPORT"
.IX Header "SUPPORT"
I (Dave Rolsky) cannot test this class, as I have no \s-1BSD\s0 systems. Reasonable
patches will be applied as\-is, and when possible I will consult with Dan
Thomas or other \s-1BSD\s0 users before releasing.
.SH "LICENSE"
.IX Header "LICENSE"
Copyright 2009 Dan Thomas, All Rights Reserved.
.PP
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.