X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=lib%2FPublicInbox%2FInboxIdle.pm;h=357bd216b5c30642fef65c84bbd343053d53ec25;hb=a0b470cbaf01c699e008818ff0f137d24b1959b1;hp=97e9d53250eb43285ae7eba56c3f4ae79d898d8e;hpb=f977826a17f8735e6947dd2da380df8c6d0b38d8;p=public-inbox.git

diff --git a/lib/PublicInbox/InboxIdle.pm b/lib/PublicInbox/InboxIdle.pm
index 97e9d532..357bd216 100644
--- a/lib/PublicInbox/InboxIdle.pm
+++ b/lib/PublicInbox/InboxIdle.pm
@@ -1,12 +1,14 @@
 # Copyright (C) 2020 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
+# fields:
+# pi_config: PublicInbox::Config ref
+# inot: Linux::Inotify2-like object
+# pathmap => { inboxdir => [ ibx, watch1, watch2, watch3... ] } mapping
 package PublicInbox::InboxIdle;
 use strict;
-use base qw(PublicInbox::DS);
-use fields qw(pi_config inot pathmap);
+use parent qw(PublicInbox::DS);
 use Cwd qw(abs_path);
-use Symbol qw(gensym);
 use PublicInbox::Syscall qw(EPOLLIN EPOLLET);
 my $IN_MODIFY = 0x02; # match Linux inotify
 my $ino_cls;
@@ -34,12 +36,21 @@ sub in2_arm ($$) { # PublicInbox::Config::each_inbox callback
 		$ibx->{unlock_subs} and
 			die "BUG: $dir->{unlock_subs} should not exist";
 		$ibx->{unlock_subs} = $old_ibx->{unlock_subs};
-		$cur->[1]->cancel;
+		$cur->[1]->cancel; # Linux::Inotify2::Watch::cancel
 	}
 	$cur->[0] = $ibx;
 
 	my $lock = "$dir/".($ibx->version >= 2 ? 'inbox.lock' : 'ssoma.lock');
-	$cur->[1] = $inot->watch($lock, $IN_MODIFY, sub { $ibx->on_unlock });
+	if (my $w = $cur->[1] = $inot->watch($lock, $IN_MODIFY)) {
+		$self->{on_unlock}->{$w->name} = $ibx;
+	} else {
+		warn "E: ".ref($inot)."->watch($lock, IN_MODIFY) failed: $!\n";
+		if ($!{ENOSPC} && $^O eq 'linux') {
+			warn <<"";
+I: consider increasing /proc/sys/fs/inotify/max_user_watches
+
+		}
+	}
 
 	# TODO: detect deleted packs (and possibly other files)
 }
@@ -51,32 +62,36 @@ sub refresh {
 
 sub new {
 	my ($class, $pi_config) = @_;
-	my $self = fields::new($class);
+	my $self = bless {}, $class;
 	my $inot;
 	if ($ino_cls) {
 		$inot = $ino_cls->new or die "E: $ino_cls->new: $!";
-		my $sock = gensym;
-		tie *$sock, 'PublicInbox::In2Tie', $inot;
-		$inot->blocking(0);
-		if ($inot->can('on_overflow')) {
-			 # broadcasts everything on overflow
-			$inot->on_overflow(undef);
-		}
-		$self->SUPER::new($sock, EPOLLIN | EPOLLET);
+		my $io = PublicInbox::In2Tie::io($inot);
+		$self->SUPER::new($io, EPOLLIN | EPOLLET);
 	} else {
 		require PublicInbox::FakeInotify;
 		$inot = PublicInbox::FakeInotify->new;
 	}
 	$self->{inot} = $inot;
 	$self->{pathmap} = {}; # inboxdir => [ ibx, watch1, watch2, watch3...]
+	$self->{on_unlock} = {}; # lock path => ibx
 	refresh($self, $pi_config);
+	PublicInbox::FakeInotify::poll_once($self) if !$ino_cls;
 	$self;
 }
 
 sub event_step {
 	my ($self) = @_;
-	eval { $self->{inot}->poll }; # Linux::Inotify2::poll
-	warn "$self->{inot}->poll err: $@\n" if $@;
+	eval {
+		my @events = $self->{inot}->read; # Linux::Inotify2::read
+		my $on_unlock = $self->{on_unlock};
+		for my $ev (@events) {
+			if (my $ibx = $on_unlock->{$ev->fullname}) {
+				$ibx->on_unlock;
+			}
+		}
+	};
+	warn "{inot}->read err: $@\n" if $@;
 }
 
 # for graceful shutdown in PublicInbox::Daemon,