Non deterministic double free or corruption on ctrl-c

[wjwwood]

This has been observed in the talker using opensplice:

$ ./install/bin/talker__ros_middleware_opensplice_cpp
init()
  init() get_instance
create_node()
  create_node() opensplice_static
  create_node() get_instance
  create_node() create_participant in domain 0
  create_node() pass opaque node handle
create_publisher()
create_publisher() opensplice_static
  create_publisher() extract participant from opaque node handle
  create_publisher() invoke register callback
  simple_msgs::type_support::register_type__String()
  create_publisher() create dds publisher
  create_publisher() create topic: chatter
  create_publisher() create data writer
  create_publisher() build opaque publisher handle
Publishing: 'Hello World: 1'
Publishing: 'Hello World: 2'
Publishing: 'Hello World: 3'
^Csignal_handler(2)
*** Error in `./install/bin/talker__ros_middleware_opensplice_cpp': double free or corruption (!prev): 0x00000000016f8ff0 ***

[dirk-thomas]

Happens for me for the OpenSplice publisher as well as the subscriber.

[esteve]

Happens for me too with libopensplice64, but haven't been able to reproduce it with libopensplice63

[dirk-thomas]

The new unit test added in ros2/examples#7 fails for exactly that reason. Both executables (test_publisher, test_subscriber) return code 134.