Web或者，您可以在singleton实例中使用同步（有人已经在注释中发布了线程安全singleton的链接）。 为您的Dictionary实例编写一个包装器。在此包装中，同步访问以确保一次只有一个线程可以访问lookupAllIndexWords（） http://www.nuonsoft.com/blog/2012/10/21/implementing-a-thread-safe-singleton-with-c11/

Singleton class and correct way to access it in C++

http://modernescpp.com/index.php/thread-safe-initialization-of-data WebSingleton::Singleton() {} 多线程 ifndef THREAD_SAFE_SINGLETON_H define THREAD_SAFE_SINGLETON_H /** @brief 线程安全单例，多线程时使用 / class ThreadSafeSingleton {public: /* @brief 单例模式，获取实例化对象 ; @param 无 ; @return 单例对象 / static ThreadSafeSingleton GetInstance(); /** css infinite linear

Java Singleton Design Pattern Practices with Examples

WebApr 11, 2024 · 需要用锁，来保证其线程安全性：原因：多个线程可能进入判断是否已经存在实例的if语句，从而non thread safety. 使用double-check来保证thread safety.但是如果处理大量数据时，该锁才成为严重的性能瓶颈。 1、静态成员实例的懒汉模式： class Singleton { private: static ... WebDec 29, 2024 · The data has only to be initialized in the thread-safe way. It is not necessary to use an expensive lock for each access. There are three ways in C++ to initialize variables in a thread-safe way. Constant expressions. The function std::call_once, in combination with the flag std::once_flag. WebSep 26, 2012 · If we consider a C++ version of singleton, there are multiple ways in which we can implement the pattern. Another consideration is multithreading. We will consider the different design strategies and see how we can implement a thread safe singleton object. The Simplest Design. See the below code snippet to implement a singleton: earl last name origin