Re: [Threads-devel] threading newbie needsadvice

From: Anthony Williams (anthony_at_[hidden])
Date: 2008-01-30 04:21:48

Quoting joop renes <jj.renes_at_[hidden]>:

> in a hobby project i need to  work with pointers to a family of
> polymorphic  objects and i want to do multi-threaded computations with
> them. does boost have thread-safe smart pointers? i tried Loki but run
> into problems to find the correct policy classes fot the multi-threaded
> case
> any suggestions please?

It depends what you're trying to do. You can safely pass shared_ptrs  
around between threads, provided you don't update the same instance  
from multiple threads at the same time, or update an instance from one  
thread whilst reading it from another. It's quite OK to copy  
shared_ptrs (even those that refer to the same object) in multiple  
threads concurrently --- the reference count is thread safe.

Anthony
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