CJobQueue任务队列的实质就是生产者消费者模型的应用

详细实现代码如下：

#ifndef JOBQUEUE_H__
#define JOBQUEUE_H__

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

namespace net 
{

    template <typename Job>
    class jobqueue
    {
    public:
        jobqueue(void);
        virtual ~jobqueue(void);

        void submitjob(const Job& x);
        Job getjob();
        void notify_all();

    private:
        bool exitwait_;
        std::list<Job> list_;
        boost::mutex mutex_;
        boost::condition worktobedone_;
    };

    template <typename Job>
        jobqueue<Job>::jobqueue(void)
        : exitwait_(false)
    {}

    template <typename Job>
        jobqueue<Job>::~jobqueue(void)
    {}

    template <typename Job>
    void jobqueue<Job>::submitjob(const Job& x)
    {
        boost::mutex::scoped_lock lock(mutex_);
        list_.push_back(x);
        worktobedone_.notify_all();
    }

    template <typename Job>
    void jobqueue<Job>::notify_all()
    {
        exitwait_ = true;
        worktobedone_.notify_all();
    }

    template <typename Job>
    Job jobqueue<Job>::getjob()
    {
        boost::mutex::scoped_lock lock(mutex_);
        while (list_.size()==0 && !exitwait_)
            worktobedone_.wait(lock);
        Job tmp;
        if (exitwait_)
            return tmp;
        tmp = list_.front();
        list_.pop_front();
        return tmp;
    }

} // namespace net

#endif // JOBQUEUE_H__