nntp: event_step: prepare for async git reads

[public-inbox.git] / lib / PublicInbox / FakeInotify.pm

diff --git a/lib/PublicInbox/FakeInotify.pm b/lib/PublicInbox/FakeInotify.pm
index bd610463181d49561b1cacb2045e79eec80bc3e1..b077d63a4b4f365b316541913856772879d1b783 100644 (file)
--- a/lib/PublicInbox/FakeInotify.pm
+++ b/lib/PublicInbox/FakeInotify.pm
@@ -8,13 +8,30 @@ use strict;
 use Time::HiRes qw(stat);
 my $IN_CLOSE = 0x08 | 0x10; # match Linux inotify
 
-sub new { bless { watch => {} }, __PACKAGE__ }
+my $poll_intvl = 2; # same as Filesys::Notify::Simple
+my $for_cancel = bless \(my $x), 'PublicInbox::FakeInotify::Watch';
+
+sub poll_once {
+       my ($self) = @_;
+       sub {
+               eval { $self->poll };
+               warn "E: FakeInotify->poll: $@\n" if $@;
+               PublicInbox::DS::add_timer($poll_intvl, poll_once($self));
+       };
+}
+
+sub new {
+       my $self = bless { watch => {} }, __PACKAGE__;
+       PublicInbox::DS::add_timer($poll_intvl, poll_once($self));
+       $self;
+}
 
 # behaves like Linux::Inotify2->watch
 sub watch {
        my ($self, $path, $mask, $cb) = @_;
        my @st = stat($path) or return;
        $self->{watch}->{"$path\0$mask"} = [ @st, $cb ];
+       $for_cancel;
 }
 
 # behaves like non-blocking Linux::Inotify2->poll
@@ -36,4 +53,7 @@ sub poll {
        }
 }
 
+package PublicInbox::FakeInotify::Watch;
+sub cancel {} # noop
+
 1;