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From: Gavin Lambert (boost_at_[hidden])
Date: 2019-09-02 06:46:26

On 2/09/2019 17:54, JH wrote:
> Yes, three IO read / write, but only one thread. The thing I am not
> clear was your comment, "You may still need locks to protect things
> that are accessed from both callbacks".

That's not what I said.

I said from both "callbacks" and "initiating functions".

Or in more verbose form: accessed from both of:
   1. callbacks
   2. initiating functions

The latter meaning something executed not on the callback thread --
named thus because in naive implementations usually the first read and
most writes will be initiated externally like that.

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