Hi, all

I got a runtime erro when try to stop a boost thread.

I created a class(listed below) to wrap boost thread, and used it like this:

ThreadWrapper tw(1);//delay 1 seconds

tw.start();

…

tw.stop();

When I called the function “stop”, a runtime error jump out said access conflict when running the line(in once.cpp,Line 163):

HANDLE mutex = CreateMutexA(NULL, FALSE, strm.str().c_str());

I’ve tried the class in two MFC projects. One has error, and the other one ran correctly.

How strange!

Is it a bug of boost?

Please help me.

//============================================================================

#include <boost/thread.hpp>

#include <boost/bind.hpp>

class ThreadWrapper

{

public:

ThreadWrapper(unsigned delySec=0)  

{

m_delySec = delySec;

m_pause = false;

m_stop = false;

    }

public:

virtual ~ThreadWrapper(void)

    {

    }

protected:

boost::mutex m_mutex;

boost::condition m_cond;

bool m_stop;

bool m_pause;

unsigned m_delySec;

public:

virtual void start()

    {

boost::thread mtth(boost::bind(&ThreadWrapper::run, this));

    }

virtual void pause()

    {

boost::mutex::scoped_lock lock(m_mutex);

m_pause = true;

m_cond.notify_one();

    }

virtual void resume()

    {

boost::mutex::scoped_lock lock(m_mutex);

m_pause = false;

m_cond.notify_one();

    }

virtual void stop()

    {

boost::mutex::scoped_lock lock(m_mutex);

m_stop=true;

m_cond.notify_one();

                   //I tried join, but still got the same error

    }

virtual void run()

    {

while(m_stop == false)

        {

if (m_pause == true)

            {

boost::mutex::scoped_lock lock(m_mutex);

while(m_pause == true)

                {

m_cond.wait(lock);

                }

            }

boost::xtime xt;

boost::xtime_get(&xt, boost::TIME_UTC);

xt.sec += m_delySec;

boost::thread::sleep(xt);

        }

    }

}

//============================================================================