[Boost-users] Threading question

Subject: [Boost-users] Threading question
From: Davies, John (john.davies_at_[hidden])
Date: 2013-09-26 19:16:54

I have the following code and it terminates as expected. When I call the destructor it interrupts the thread.

But if I change the this_thread::sleep to this_thread::yield the join() never happens and the program hangs.

I must be misunderstanding yield. But I really don't want a sleep if possible.

Thanks,
John

MessageQueueHandler::~MessageQueueHandler()
{
    // Terminate the thread
    pMessageQueueInputThread->interrupt();
    pMessageQueueInputThread->join();
    delete pMessageQueueInputThread;
}
void MessageQueueHandler::MessageQueueInputThread()
{
    unsigned int receivedSize;
    unsigned int priority;
    char buffer[queueMaximumMessageSize];
    boost::this_thread::interruption_enabled();
    try
    {
        while(1)
        {
            // Process all messages in the queue
            while(inputMessageQueue->try_receive(buffer, queueMaximumMessageSize, receivedSize, priority))
            {
                BaseMessage * msg = reinterpret_cast<BaseMessage*>(buffer);
                callbackTable->DispatchMessage(msg);
                boost::this_thread::interruption_point();
            }
            // Give other threads a chance to run
            // This is also an interruption point
            boost::this_thread::sleep(boost::posix_time::millisec(50)); <==Here
        }
    }
    catch(boost::thread_interrupted const&)
    {
        return;
    }
}

___________________________________

John Davies
Contractor
Home Respiratory Care
Philips Home Healthcare Solutions
1740 Golden Mile Highway
Monroeville, PA 15146

Email: john.davies_at_[hidden]
Fax: [phone]

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