4 C++中的queue：queue是STL的队列，有FIFO的特性。①队列头文件：#include <queue>②queue模板类：需要两个模板参数，一个是元素类型，一个容器类型，元素类型是必要的，容器类型是可选的，默认为deque类型。定义queue对象的示例代码如下：queue<int> q1;queue<double> q2;queue<Point> q3;5 queue的基本操作有...
// Successful CAS is the linearization point // for item to be removed from this queue. if (p != h) // hop two nodes at a time updateHead(h, ((q = p.next) != null) ? q : p); return item; } else if ((q = p.next) == null) { updateHead(h, p); return null; } ...
在array_lock_free_queue.h中有一个名为ARRAY_LOCK_FREE_Q_KEEP_REAL_SIZE的宏变量,如果它被定义那么将启用count变量,否则将size函数将有可能返回不正确的值。 (六)多读多写RingBuffer的性能 无锁vs阻塞队列 并发的插入和移除100W元素所花费的时间(越小越好,队列的数组大小初始为16384)。在单生产者的情况下,...
null)) {6//Successful CAS is the linearization point7//for item to be removed from this queue.8if(p != h)//hop two nodes at a time9updateHead(h, ((q = p.next) !=null) ?q : p);10returnitem;
publicEpoll(){restartFromHead:for(;;) {// 无限循环for(Node<E> h = head, p = h, q;;) {// 保存头节点// item项E item = p.item;if(item !=null&& p.casItem(item,null)) {// item不为null并且比较并替换item成功// Successful CAS is the linearization point// for item to be remov...
next; if (q == null) { // p is last node // 如果q为null表示p是最后一个元素,尝试加入队列 // 如果失败,表示其他线程已经修改了p指向的节点 if (p.casNext(null, newNode)) { // Successful CAS is the linearization point // for e to become an element of this queue, // and for ...
Queueobjects are the starting point to everything this library does. To make one, we just need to give it a name, typically indicating the sort of job it will process: constQueue=require('bee-queue');constaddQueue=newQueue('addition'); ...
Queue objects are the starting point to everything this library does. To make one, we just need to give it a name, typically indicating the sort of job it will process:const Queue = require('bee-queue'); const addQueue = new Queue('addition');...
D2D1_POINT_2L structure (Windows) IEvent::SetUserTime method (Windows) DeviceController.remove_DeviceArrival method (Windows) IDeviceController::remove_DeviceDeparture method (Windows) ITransportParameters::TransportInformation method (Windows) InterlockedDecrementNoFence function (Windows) InterlockedOr64NoFence...
var q = new Queue(fn); var stats = q.getStats(); // stats.total = Total tasks processed // stats.average = Average process time in milliseconds // stats.successRate = % success (between 0 and 1) // stats.peak = Most tasks queued at any given point in time back to top Storage...