| 1 |
=head1 NAME |
| 2 |
|
| 3 |
AnyEvent::BDB - truly asynchronous berkeley db access |
| 4 |
|
| 5 |
=head1 SYNOPSIS |
| 6 |
|
| 7 |
use AnyEvent::BDB; |
| 8 |
use BDB; |
| 9 |
|
| 10 |
# can now use any of the requests your BDB module supports |
| 11 |
# as long as you use an event loop supported by AnyEvent. |
| 12 |
|
| 13 |
=head1 DESCRIPTION |
| 14 |
|
| 15 |
This module is an L<AnyEvent> user, you need to make sure that you use and |
| 16 |
run a supported event loop. |
| 17 |
|
| 18 |
Loading this module will install the necessary magic to seamlessly |
| 19 |
integrate L<BDB> into L<AnyEvent>, i.e. you no longer need to concern |
| 20 |
yourself with calling C<BDB::poll_cb> or any of that stuff (you still |
| 21 |
can, but this module will do it in case you don't). |
| 22 |
|
| 23 |
The AnyEvent watcher can be disabled by executing C<undef |
| 24 |
$AnyEvent::BDB::WATCHER>. Please notify the author of when and why you |
| 25 |
think this was necessary. |
| 26 |
|
| 27 |
=cut |
| 28 |
|
| 29 |
package AnyEvent::BDB; |
| 30 |
|
| 31 |
use strict; |
| 32 |
no warnings; |
| 33 |
|
| 34 |
use AnyEvent (); |
| 35 |
use BDB (); |
| 36 |
|
| 37 |
use base Exporter::; |
| 38 |
|
| 39 |
our $VERSION = '1.1'; |
| 40 |
our $WATCHER; |
| 41 |
|
| 42 |
my $guard = AnyEvent::post_detect { |
| 43 |
$WATCHER = AnyEvent->io (fh => BDB::poll_fileno, poll => 'r', cb => \&BDB::poll_cb); |
| 44 |
}; |
| 45 |
$WATCHER ||= $guard; |
| 46 |
|
| 47 |
BDB::_on_next_submit \&AnyEvent::detect; |
| 48 |
|
| 49 |
=head1 SEE ALSO |
| 50 |
|
| 51 |
L<AnyEvent>, L<Coro::BDB> (for a more natural syntax). |
| 52 |
|
| 53 |
=head1 AUTHOR |
| 54 |
|
| 55 |
Marc Lehmann <schmorp@schmorp.de> |
| 56 |
http://home.schmorp.de/ |
| 57 |
|
| 58 |
=cut |
| 59 |
|
| 60 |
1 |
| 61 |
|
