inboxidle: new class to detect inbox changes

[public-inbox.git] / lib / PublicInbox / In2Tie.pm

diff --git a/lib/PublicInbox/In2Tie.pm b/lib/PublicInbox/In2Tie.pm
new file mode 100644 (file)
index 0000000..db1dc10
--- /dev/null
+++ b/lib/PublicInbox/In2Tie.pm
@@ -0,0 +1,17 @@
+# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# used to ensure PublicInbox::DS can call fileno() as a function
+# on Linux::Inotify2 objects
+package PublicInbox::In2Tie;
+use strict;
+
+sub TIEHANDLE {
+       my ($class, $in2) = @_;
+       bless \$in2, $class; # a scalar reference to an existing reference
+}
+
+# this calls Linux::Inotify2::fileno
+sub FILENO { ${$_[0]}->fileno }
+
+1;