然后,我们可以编写函数来初始化线程池并添加任务,如下所示: ```c void threadpool_init(threadpool_t *pool, int num_threads) { pool->num_threads = num_threads; pool->running = 1; pthread_mutex_init(&pool->lock, NULL); pthread_cond_init(&pool->cond, NULL); pool->threads = (pthread_t...
本项目线程池功能分以下几个函数去实现: > threadpool.init(isize_t num);设置线程的数量 > threadpool::get(TaskFuncPtr& task);读取任务队列中的任务 > threadpool::run();通过get()读取任务并执行 > threadpool.start(); 启动线程池,并通过run()执行任务 > threadpool.exec();封装任务到任务队列中 ...
/* 初始化互斥锁 */ pthread_mutex_init(&lock,NULL); /* 断言线程池创建成功 */ assert((pool=threadpool_create(THREAD,QUEUE,0))!=NULL); fprintf(stderr,"Pool started with %d threads and " "queue size of %d\n",THREAD,QUEUE); /* 只要任务队列还没满,就一直添加 */ while(threadpool_add...
pthread_mutex_init(&lock, NULL);/* 断言线程池创建成功 */ assert((pool = threadpool_create(THREAD, QUEUE,0)) != NULL);fprintf(stderr,"Pool started with %d threads and ""queue size of %d\n", THREAD, QUEUE);/* 只要任务队列还没满,就一直添加 */while(threadpool_add(pool, &dummy_tas...
pthread_once(&ponce_, &Singleton::init); 保证init函数只被调用一次,即只初始化一个对象。在init内部 value_ = new T(); 2、atexit ::atexit(destroy); 在init 函数内注册destroy,在程序结束时会调用destroy,在destroy内部delete value_; 3、typedef char T_must_be_complete_type[sizeof(T) == 0 ?
{ pthread_mutex_t lock;//互斥锁 pthread_cond_t cond;//条件变量 struct task *task_list;//任务队列 pthread_t *tids;//线程id unsigned waiting_tasks;//等待任务 unsigned active_threads;// bool shutdown;//停始状态 }thread_pool; //初始化线程池 bool init_pool(thread_pool *pool, unsigned ...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 forreqinrequests:pool.putRequest(req) 第四行是等待所有的线程完成工作后退出。 实例: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 importthreadpool,time lock=threading.Lock()defsayhello(str):lock.acquire()print("Hello ",str)time.sleep(2)...
=nilvaruser_interactive_qos_attr=pthread_attr_t()pthread_attr_init(&user_interactive_qos_attr)pthread_attr_set_qos_class_np(&user_interactive_qos_attr,qos,0)ifpthread_create(&thread,&user_interactive_qos_attr,threadRun,pointer)==0&&thread!=nil{holder.release()}threadCount+=1}...
= threading.Semaphore(0) self._threads = set() self._broken = False self._shutdown = False self._shutdown_lock = threading.Lock() self._thread_name_prefix = (thread_name_prefix or ('ThreadPoolExecutor-%d' % self._counter())) self._initializer = initializer self._initargs = init...
任何进程(除init进程)都是由另一个进程创建,该进程称为被创建进程的父进程,被创建的进程称为子进程,父进程ID无法在用户层修改。父进程的进程ID即为子进程的父进程ID(PPID)。用户可以通过调用getppid()函数来获得当前进程的父进程ID(PPID)。此函数没有参数,如果执行成功返回当前进程的父进程ID(PPID),失败返回-1...