Linux::Inotify2 1.01 review

License: Perl Artistic License File size: 0K Developer: Marc Lehmann

0

Linux::Inotify2 is a scalable directory/file change notification.

SYNOPSIS

Callback interface
use Linux::Inotify2;

# create a new object
my $inotify = new Linux::Inotify2
or die "Unable to create new inotify object: $!";

# for Event:
Event->io (fd =>$inotify->fileno, poll => 'r', cb => sub { $inotify->poll });
# for Glib:
add_watch Glib::IO $inotify->fileno, in => sub { $inotify->poll };
# manually:
1 while $inotify->poll;

# add watchers
$inotify->watch ("/etc/passwd", IN_ACCESS, sub {
my $e = shift;
my $name = $e->fullname;
print "$name was accessedn" if $e->IN_ACCESS;
print "$name is no longer mountedn" if $e->IN_UNMOUNT;
print "$name is gonen" if $e->IN_IGNORED;
print "events for $name have been lostn" if $e->IN_Q_OVERFLOW;

# cancel this watcher: remove no further events
$e->w->cancel;
});
Streaming Interface
use Linux::Inotify2 ;

# create a new object
my $inotify = new Linux::Inotify2
or die "Unable to create new inotify object: $!" ;

# create watch
$inotify->watch ("/etc/passwd", IN_ACCESS)
or die "watch creation failed" ;

while () {
my @events = $inotify->read;
unless (@events > 0) {
print "read error: $!";
last ;
}
printf "maskt%dn", $_->mask foreach @events ;
}

This module implements an interface to the Linux 2.6.13 and later Inotify file/directory change notification sytem.

It has a number of advantages over the Linux::Inotify module:

- it is portable (Linux::Inotify only works on x86)
- the equivalent of fullname works correctly
- it is better documented
- it has callback-style interface, which is better suited for
integration.

Requirements:
Perl