* SingletonDynamic<T>::unlock_mutex() and SingletonDynamic<T>::memory_barrier() respectively * and reinitialize the respective function pointer members to these alternate implementations. * *@tparamT * The type
+ (MySingletonClass*)sharedManager { @synchronized(self) { if (sharedSingletonManager == nil) { [[self alloc] init]; // assignment not done here } } return sharedSingletonManager; } + (id)allocWithZone:(NSZone *)zone { @synchronized(self) { if (sharedSingletonManager == nil) { shared...
1.单例模式一般用全局静态对象来实现,所以我们在SingletonClass.m中定义一个静态全局变量是少不了的 1 2 //定义静态全局变量 staticSingletonClass *single = nil; 2.上面的静态变量是定义在实现文件中的所以是私有的,要想获取该类的实例得有个getInstance方法来获取实例,在给静态变量分配内存空...
#include <iostream> class Singleton{ private: Singleton(){ std::cout<<"constructor called!"<<std::endl; } Singleton(Singleton&)=delete; Singleton& operator=(const Singleton&)=delete; static Singleton* m_instance_ptr; public: ~Singleton(){ std::cout<<"destructor called!"<<std::endl; } ...
class Singleton { private: static Singleton instance; private: Singleton() = default; publ...
#ifndef UNTITLED_SINGLETON_H #define UNTITLED_SINGLETON_H class Singleton{ public: static Singleton *GetInstance(); int data; protected: private: static Singleton instance; Singleton(); ~Singleton(); // 将其拷贝构造和赋值构造成为私有函数, 禁止外部拷贝和赋值 Singleton(const Singleton&); Singleton ...
classsingleton{protected:singleton(){pthread_mutex_init(&mutex);}public:staticpthread_mutex_t mutex;staticsingleton*initance();int a;};pthread_mutex_t singleton::mutex;singleton*singleton::initance(){pthread_mutex_lock(&mutex);staticsingleton obj;pthread_mutex_unlock(&mutex);return&obj;} ...
*/classSingletonPattern_V2{public:~SingletonPattern_V2(){std::cout<<"destructor called!"<<std::endl;}SingletonPattern_V2(SingletonPattern_V2&)=delete;SingletonPattern_V2&operator=(constSingletonPattern_V2&)=delete;//在这里实例化staticstd::shared_ptr<SingletonPattern_V2>Instance(){//双重检查锁if...
public class TestClass { public static void main(String[] args) { // instantiating Singleton class with three variable obj1,obj2,obj3 SingletonClass obj1 = SingletonClass.getInstance(); SingletonClass obj2 = SingletonClass.getInstance(); SingletonClass obj3 = SingletonClass.getInstance(); // ...
instance = new SingletonPattern1();这一块可以扩展，直接创建类，也可以创建借口，或直接载入dll等 单例模式是我们学习设计模式的第一课，这个代码已经无懈可击了，代码参考 using System; namespace SingletonPattern { public class SingletonPattern1 { /// ///单例锁对象 /// private static...