file::changenotify::watcher::default(3pm) [debian man page]
File::ChangeNotify::Watcher::Default(3pm) User Contributed Perl Documentation File::ChangeNotify::Watcher::Default(3pm)NAME
File::ChangeNotify::Watcher::Default - Fallback default watcher subclass
VERSION
version 0.22
DESCRIPTION
This class implements watching by comparing two snapshots of the filesystem tree. It if inefficient and dumb, and so it is the subclass of
last resort.
Its "$watcher->wait_for_events()" method sleeps between comparisons of the filesystem snapshot it takes.
AUTHOR
Dave Rolsky <autarch@urth.org>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2012 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)
perl v5.14.2 2012-04-14 File::ChangeNotify::Watcher::Default(3pm)
Check Out this Related Man Page
File::ChangeNotify::Watcher::KQueue(3pm) User Contributed Perl Documentation File::ChangeNotify::Watcher::KQueue(3pm)NAME
File::ChangeNotify::Watcher::KQueue - KQueue-based watcher subclass
DESCRIPTION
This class implements watching using IO::KQueue, which must be installed for it to work. This is a BSD alternative to Linux's Inotify and
similar event-based systems.
CAVEATS
Although this watcher is more efficient and accurate than the "File::ChangeNotify::Watcher::Default" class, in order to monitor files and
directories, it must open filehandles to each of them. Because many BSD systems have relatively low defaults for the maximum number of
files each process can open, you may find you run out of file descriptors.
On FreeBSD, you can check (and alter) your system's settings with "sysctl" if necessary. The important keys are: "kern.maxfiles" and
"kern.maxfilesperproc". You can see how many files your system current has open with "kern.openfiles".
On OpenBSD, the "sysctl" keys are "kern.maxfiles" and "kern.nfiles". Per-process limits are set in /etc/login.conf. See login.conf(5) for
details.
SUPPORT
I (Dave Rolsky) cannot test this class, as I have no BSD systems. Reasonable patches will be applied as-is, and when possible I will
consult with Dan Thomas or other BSD users before releasing.
AUTHOR
Dan Thomas, <dan@cpan.org>
COPYRIGHT AND LICENSE
This software is Copyright (c) 2010 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0
perl v5.14.2 2012-04-14 File::ChangeNotify::Watcher::KQueue(3pm)
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