Exceptions are not thread-safe about cello HOT 3 CLOSED

Hey,

Yes unfortunately I've not made an effort to make very much thread safe in Cello but this is particularly bad.

I don't know if there is a way to get the exception behavior I wanted without using static variables but I'll have a little more of a think about it. An important thing I wanted for libCello was to have no Init or Finalise functions (or have any state to pass around).

One nasty way may be to introduce some fixes when we get around to finally adding Threads into the library. In which case we can store all the thread information we like on thread creation and destruction.

Anyway thanks for bringing this to my attention :)

• Dan

from cello.

As I mentioned before, this is easily fixed using thread-local storage for the exceptions-related global variables. To that end I made #36. The "downside" of using TLS is that, if the pthread is created inside the try block and it throws an exception, that exception is not caught because TLS is cleaned on thread creation. But that's not really a problem, since in most cases the parent thread would probably exit from the try block before the child throws an exception anyway.

from cello.

Thanks. Didn't know about the thread local storage keywork. Cheers for the pull request :)

from cello.