[boost] recursive_mutex problem on joining

From: Steve Weber (steve.weber.junk_at_[hidden])
Date: 2007-03-26 14:09:15

Im kinda noob only 2 years of c++

When joining two threads using a recursive_mutex.  The recursive_mutex is
not shared resulting in dead lock.
Is this a "bug" or am i missing something.

also what would be a good solution to this?

Example code of my problem.
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class Test{
public:
    boost::recursive_mutex m_mutex;
    boost::thread* m_thread;
    bool m_endThread;
    // start thread
    Test() : m_endThread( false ) {
        m_thread = new boost::thread( boost::bind( &Test::threaded, this )
);
    }
    // cleanup
    virtual ~Test() {
        boost::recursive_mutex::scoped_lock l( m_mutex );
        m_endThread = true;
        m_thread->join(); //< DEAD LOCK
        delete m_thread;
    }
    // the thread that will block
    void threaded() {
        for (;;){
            boost::recursive_mutex::scoped_lock l( m_mutex ); //< DEAD LOCK
            if ( m_endThread ) return;
        }
    }
};

int main() {
    Test t;
}

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