[PROTON-1615] c++: container leaks if exception thrown by handler.

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: cpp-binding
• Labels: leak
• Assignee: Unassigned
• Reporter: Alan Conway
• Created: 06/Oct/17 20:19
• Updated: 05/Mar/19 21:39

Description

An exception throw by a handler is re-thrown out of container.run() as expected, however
the container does not shut down cleanly and many leaks are reported by valgrind or asan. The container should be exception-safe.

To demonstrate the problem apply this small patch to the helloworld_direct example.

examples/cpp/helloworld_direct.cpp | 1 +

modified examples/cpp/helloworld_direct.cpp
@@ -53,6 +53,7 @@ class hello_world_direct : public proton::messaging_handler {

// Receive one message and stop listener
void on_message(proton::delivery &, proton::message &m) OVERRIDE

{ + throw std::runtime_error("thrown from on_message"); std::cout << m.body() << std::endl; listener.stop(); }

Issue Links

• is related to: PROTON-1571 The ssl C++ example appears leaky, proton::listener does not have a destructor