tls: Cycle data when underlying socket drains

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/tls.js b/lib/tls.js
index 97b7f7484..8b3654fa4 100644
--- a/lib/tls.js
+++ b/lib/tls.js
@@ -1298,6 +1298,18 @@ function pipe(pair, socket) {
   cleartext.encrypted = pair.encrypted;
   cleartext.authorized = false;
 
+  // cycle the data whenever the socket drains, so that
+  // we can pull some more into it.  normally this would
+  // be handled by the fact that pipe() triggers read() calls
+  // on writable.drain, but CryptoStreams are a bit more
+  // complicated.  Since the encrypted side actually gets
+  // its data from the cleartext side, we have to give it a
+  // light kick to get in motion again.
+  socket.on('drain', function() {
+    pair.encrypted.read(0);
+    pair.cleartext.read(0);
+  });
+
   function onerror(e) {
     if (cleartext._controlReleased) {
       cleartext.emit('error', e);