[lldb-dev] Listening for thread events

[Jeffrey Tan via lldb-dev]

What event_mask should be used for the thread event class? I did not find
any. (Sorry for hijacking the thread)

On Fri, Jan 29, 2016 at 4:02 PM, Jim Ingham via lldb-dev <
lldb-dev at lists.llvm.org> wrote:

> It’s unclear to me why it would be a problem to listen to every thread
> object?  They aren’t terribly chatty or anything, and you can listen to all
> of them with one listener.
>
> Note, you don’t have to sign up individually for every thread object’s
> broadcaster.  That would be really annoying.  In lldb, you can listen to
> individual broadcasters or “broadcaster event classes”.  You want to do the
> latter.
>
> You get the event class name with the GetBroadcasterClassName method on
> the class you are interested in (SBThread in this case) and then on your
> listener call
>
> SBListener::StartListeningForEventClass
>
> If you do that, the debugger will sign your listener up for the objects of
> that broadcaster class as they come and go.  That makes listening to events
> on all the threads in your process quite straightforward.
>
> Hope this helps.
>
> Jim
>
>
> On Jan 29, 2016, at 2:32 PM, John Lindal via lldb-dev <
> lldb-dev at lists.llvm.org> wrote:
>
> I'm building an X11 UI on top of LLDB, and I'm stuck trying to listen for
> thread events.
>
> lldb_private::Thread is a Broadcaster, but lldb::SBThread doesn't expose a
> GetBroadcaster() event the way SBProcess does.
>
> I wouldn't really want to have to listen to every SBThread object, but
> when the program stops, I could listen to the selected thread.  (Getting
> the events from SBProcess would also work, if Process relayed them.)
>
> Is this a feature that has not yet been implemented?  I couldn't find any
> related tickets in Bugzilla.
>
> Thanks,
> John Lindal
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