Re: [boost] Re: Re: Future of Boost.Thread part II

From: John Fuller (jfuller_at_[hidden])
Date: 2004-02-13 08:29:11

You're right about synchronized<> as far as containers are concerned.

Here's Ted Yuan's ProducerConsumer code from CUJ Jan '04
which does explicitly lock around these cases (ex: in offer and poll 
calls
for a channel (a template wrapper for a container type)).



On Feb 13, 2004, at 2:23 AM, Vladimir Prus wrote:

> John Fuller wrote:
>
>> both Ted Yuan's producer-consumer templates (cujjan2004)
>> and the synchronized template
>> at http://libcalc.sourceforge.net/synchronized.hpp
>> are nice thread-safe container implementations...
>
> I could not find the first reference. Looking at the second, it seems 
> to
> implement the same idea as Raoul Gough's presented. And of course, 
> I'll ask
> the same question: if I have code like
>
>         if (!proxy->empty()) {
>             int value = proxy->front();
>             //....
>         }
>
> what prevents other thread from extracting all elements between the two
> calls?
>
> - Volodya
>
>
>
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