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.\" ========================================================================
.\"
.IX Title "Filesys::Notify::Simple 3"
.TH Filesys::Notify::Simple 3 "2020-01-03" "perl v5.26.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
Filesys::Notify::Simple \- Simple and dumb file system watcher
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&  use Filesys::Notify::Simple;
\&
\&  my $watcher = Filesys::Notify::Simple\->new([ "." ]);
\&  $watcher\->wait(sub {
\&      for my $event (@_) {
\&          $event\->{path} # full path of the file updated
\&      }
\&  });
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Filesys::Notify::Simple is a simple but unified interface to get
notifications of changes to a given filesystem path. It utilizes
inotify2 on Linux, fsevents on \s-1OS X,\s0 kqueue on FreeBSD and
FindFirstChangeNotification on Windows if they're installed, with a
fallback to the full directory scan if they're not available.
.PP
There are some limitations in this module. If you don't like it, use
File::ChangeNotify.
.IP "\(bu" 4
There is no file name based filter. Do it in your own code.
.IP "\(bu" 4
You can not get types of events (created, updated, deleted).
.IP "\(bu" 4
Currently \f(CW\*(C`wait\*(C'\fR method blocks.
.PP
In return, this module doesn't depend on any non-core
modules. Platform specific optimizations with Linux::Inotify2,
Mac::FSEvents, Filesys::Notify::KQueue and Win32::ChangeNotify
are truely optional.
.PP
\&\s-1NOTE:\s0 Using Win32::ChangeNotify may put additional limitations.
.IP "\(bu" 4
Win32::ChangeNotify uses FindFirstChangeNotificationA so that
Unicode characters can not be handled.
On cygwin (1.7 or later), Unicode characters should be able to be handled
when Win32::ChangeNotify is not used.
.IP "\(bu" 4
If more than 64 directories are included under the specified paths,
an error occurrs.
.SH "AUTHOR"
.IX Header "AUTHOR"
Tatsuhiko Miyagawa <miyagawa@bulknews.net>
.SH "LICENSE"
.IX Header "LICENSE"
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
File::ChangeNotify Mac::FSEvents Linux::Inotify2 Filesys::Notify::KQueue
Win32::ChangeNotify