shutdown write end of transceiver when connection is closed

1 files changed, 9 insertions, 0 deletions

diff --git a/cpp/src/Ice/ConnectionI.cpp b/cpp/src/Ice/ConnectionI.cpp
index 75712477aec..63d5c26e46a 100644
--- a/cpp/src/Ice/ConnectionI.cpp
+++ b/cpp/src/Ice/ConnectionI.cpp
@@ -1671,6 +1671,15 @@ Ice::ConnectionI::setState(State state)
 		//
 		registerWithPool();
 		unregisterWithPool();
+
+		//
+		// We must prevent any further writes when _state == StateClosed.
+		// However, functions such as sendResponse cannot acquire the main
+		// mutex in order to check _state. Therefore we shut down the write
+		// end of the transceiver, which causes subsequent write attempts
+		// to fail with an exception.
+		//
+		_transceiver->shutdownWrite();
 	    }
 	    break;
 	}