Github user bgedik commented on a diff in the pull request:
https://github.com/apache/thrift/pull/1497#discussion_r172754060
--- Diff: lib/cpp/src/thrift/server/TNonblockingServer.cpp ---
@@ -472,6 +472,18 @@ void TNonblockingServer::TConnection::workSocket() {
}
// size known; now get the rest of the frame
transition();
+
+ // If the socket has more data than the frame header, continue to work
on it. This is not strictly necessary for
+ // regular sockets, because if there is more data, libevent will fire
the event handler registered for read
+ // readiness, which will in turn call workSocket(). However, some
socket types (such as TSSLSocket) may have the
+ // data sitting in their internal buffers and from libevent's
perspective, there is no further data available. In
+ // that case, not having this workSocket() call here would result in a
hang as we will never get to work the socket,
+ // despite having more data.
+ if (tSocket_->hasPendingDataToRead())
--- End diff --
It can't. Note that the line above is ``transition()``. So the next time we
call ``workSocket()`` it is a different state.
Btw, I assume you notice that the original ``workSocket`` call I removed,
which was causing the superfluous exception, was inside ``workSocket`` as well.
---
