[cpp-threads] Re: Exception propogation across threads

[Howard Hinnant]

On Feb 22, 2007, at 4:04 PM, Peter Dimov wrote:

> 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.

Sounds reasonable.

>> 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.

My bad, thanks for the correction.  That's even better.

-Howard