Re: [boost] shared_ptr and thread safety

From: Joachim Achtzehnter (joachim_at_[hidden])
Date: 2002-06-29 13:38:24

Peter Dimov wrote:
>
> A single instance of shared_ptr must not be accessed from multiple threads
> without synchronization (unless all accesses are read accesses.)

Right.

> Different instances can be accessed from multiple threads, even when they
> are copies and share a count.

I see, mutex protection has been added to shared_ptr since I last looked.
This decision surprises me. This means every user of shared_ptr is now
burdened with this overhead?

Joachim

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