int main()
{
Singleton *s = Singleton::getInstance();
s->printInfo();
Singleton *s2 = Singleton::getInstance();
s2->printInfo();
Singleton *s3 = Singleton::getInstance();
s3->printInfo();
// Singleton *s4 = new Singleton();
// Singleton s5;
/* 创建线程,在线程里也去调用Singleton::getInstance */
pthread_t thread1ID;
pthread_t thread2ID;
pthread_create(&thread1ID, NULL, start_routine_thread1, NULL);
pthread_create(&thread2ID, NULL, start_routine_thread2, NULL);
sleep(3);
return 0;
}
void *start_routine_thread2(void *arg)
{
cout<<"this is thread 2 ..."<<endl;
Singleton *s = Singleton::getInstance();
s->printInfo();
return NULL;
}