[cpp-threads] Re: Exception propogation across threads

[Peter Dimov]

Howard Hinnant wrote in message c++std-ext-8619:

> A low-level std::thread (or whatever name) does not deliver results of
> any kind: normal or abnormal.  Unhandled exceptions (except possibly
> thread_cancel)

And thread_exit, thrown by pthread_exit.

> result in a call to std::terminate() (which may have a
> handler by current C++03 rules).  Trying to join with a canceled
> thread is a sure-fire technique for dead-locking a thread.  This
> provides good motivation for keeping the handle of such a std::thread
> non-copyable.

Joins are well-defined for a canceled thread; they operate exactly as joins 
for non-canceled threads do, wait until the thread has been terminated, then 
return. I don't see where your deadlock comes from.