Re: [Boost-users] BoostTest: Is BOOST_MESSAGE is not thread safe?

Subject: Re: [Boost-users] BoostTest: Is BOOST_MESSAGE is not thread safe?
From: Ovanes Markarian (om_boost_at_[hidden])
Date: 2010-03-24 06:21:00

There was a discussion in the mailing how to make Boost.Test thread-safe.
The problem is that Boost.Test needs to be boost-clean, because other
libraries such as Boost.Thread etc. use it for testing. Therefore relying on
Boost.Thread is not possible in such a case => requires the development of
the proprietary thread-safety, synchronization etc. which works on all
platforms where Boost.Test runs. On the other hand, not everyone requires
thread-safety. Introducing it might slow down the test execution
tremendously. So it is up to you how to implement you synchronization
mechanisms :( and whether to implement them at all.

Regards,
Ovanes

On Tue, Mar 23, 2010 at 9:28 PM, Dmytro Ovdiienko <
dmitriy.ovdienko_at_[hidden]> wrote:

> Guys,
>
> I've just noticed BOOST_MESSAGE is not thread safe instruction.
> It is unbelievable!! I do not want to believe it!!!
>
> Try this:
>
> #define BOOST_TEST_MAIN
> #include <boost/test/unit_test.hpp>
> #include <boost/thread/thread.hpp>
>
> void foo()
> {
>    for( size_t i = 0; i < 100000000; ++i )
>    {
>       BOOST_MESSAGE( "111111122222222223333333333" );
>    }
> }
>
> BOOST_AUTO_TEST_CASE( testBoost )
> {
>    size_t const SIZE = 2;
>    boost::thread t[ SIZE ];
>
>    for( size_t i = 0; i < SIZE; ++i )
>    {
>      t[ i ] = boost::thread( &foo );
>    }
>
>    for( size_t i = 0; i < SIZE; ++i )
>    {
>      t[ i ].join();
>    }
> }
>
>
> windows XP SP3 32bit
> VS 2008 SP1
> boost 1.42
>
> --
> Dmytro Ovdiienko
>
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