"Clean" implementation of binmode(FH)/":raw" identity.

[p5sagit/p5-mst-13.2.git] / ext / PerlIO / Via / Via.pm

diff --git a/ext/PerlIO/Via/Via.pm b/ext/PerlIO/Via/Via.pm
index 01805ca..92614b4 100644 (file)
--- a/ext/PerlIO/Via/Via.pm
+++ b/ext/PerlIO/Via/Via.pm
@@ -46,6 +46,12 @@ Optional - layer is about to be removed.
 
 Not yet in use.
 
+=item $obj->BINMODE([,$fh])
+
+Optional - if not available layer is popped on binmode($fh) or when C<:raw>
+is pushed. If present it should return 0 on success -1 on error and undef
+to pop the layer.
+
 =item $class->FDOPEN($fd)
 
 Not yet in use.