线程池

class ThreadPool
{
public:
    ThreadPool()
    {
    }
    bool createWork(int num)
    {
        for(int i=0;i<num;i++)
        {
            pthread_t thr;
            if(pthread_create(&thr,NULL,workThread,this)!=0)
            {
                perror("create createThread failed!\n");
                return false;
            }
            threadNum++;
            usleep(50000);
        }
        return true;
    }
    bool startManageThread()
    {
        
        pthread_t thr;
        if(pthread_create(&thr,NULL,ManageThread,this)!=0)
        {
            perror("create createThread failed!\n");
            return false;
        }
        return true;
    }
    
private:
    static void *ManageThread(void *arg)
    {
        ThreadPool *pthis = (ThreadPool *)arg;
        if(pthis)
        {
            pthis->ManageThreadRun();
        }
        return pthis;
    }
    void ManageThreadRun()
    {
        while(1)
        {
            sleep(2);
            std::cout<<"ManageThreadRun"<<endl;
        }
    }
    static void *workThread(void *arg)
    {
        ThreadPool *pthis = (ThreadPool *)arg;
        if(pthis)
        {
            pthis->workThreadRun();
        }
        return pthis;
    }
    void workThreadRun()
    {
        static int i=0;
        i++;
        int j=i;
        while(1)
        {
            sleep(2);
            std::cout<<"workThreadRun  "<<j<<endl;
        }
    }
    int threadNum;
};