[rmw_connext_dynamic] "heap" corruption of the connext dynamic test_subscriber after receiving a message

[wjwwood]

The pub-sub test for connext dynamic on Windows fails.

Running the test_publisher works, and so does running the test_subscriber. But when run together the `test_subscriber crashes (on shutdown it looks like) after receiving the first message.

This is the error:

Unhandled exception at 0x00007FFF1ED30F20 (ntdll.dll) in test_subscriber__rmw_connext_dynamic_cpp.exe: 0xC0000374: A heap has been corrupted (parameters: 0x00007FFF1ED6DD40).

This is the back trace:

    nddscpp.dll!DDSGuardCondition::`vector deleting destructor'(unsigned int)   C++
>   rmw_connext_dynamic_cpp.dll!rmw_destroy_guard_condition(rmw_guard_condition_t * guard_condition) Line 755   C++
    test_subscriber__rmw_connext_dynamic_cpp.exe!rclcpp::executor::Executor::~Executor() Line 51    C++
    test_subscriber__rmw_connext_dynamic_cpp.exe!rclcpp::executors::single_threaded_executor::SingleThreadedExecutor::~SingleThreadedExecutor() Line 45 C++
    test_subscriber__rmw_connext_dynamic_cpp.exe!rclcpp::spin(std::shared_ptr<rclcpp::node::Node> & node_ptr) Line 77   C++
    test_subscriber__rmw_connext_dynamic_cpp.exe!main(int argc, char * * argv) Line 41  C++

This looks like a double free. I'm looking into a way to fix it.

[wjwwood]

The curious thing is that this doesn't happen on Linux and OS X...

[wjwwood]

This actually seems like a memory corruption issue, since all of the tests and examples go through the same code path (through the Executor's destructor).

[wjwwood]

Not sure if this is still happens, we need to confirm it is still an issue or not.

[wjwwood]

Still not sure if this is still an issue, but since we're not currently supporting connext_dynamic, I'll put this into the backlog for the time being.

[clalancette]

Closing, since with Foxy now being End-of-Life, this repository is no longer used.