aop之应用 时间记录器及日志

struct TimeElapsedAspect{void Before(int i){m_lastTime = m_t.elapsed();}void After(int i){std::cout << "time elapsed: " << m_t.elapsed() - m_lastTime << "ms" <<std::endl;}private:double m_lastTime;Timer m_t;};struct LoggingAspect{void Before(int i){std::cout << "entering" << std::endl;}void After(int i){std::cout << "leaving" << std::endl;}};void foo(int a){std::cout << "real HT function: " << a << std::endl;for (int i = 0; i < 10000; i+=a ){if (i % 1000 == 0)std::cout << i << std::endl;}}

Invoke<LoggingAspect, TimeElapsedAspect>(&foo, 1); //织入方法std::cout << "-----------------------" << std::endl;Invoke<TimeElapsedAspect, LoggingAspect>(&foo, 1);

Invoke的实现：http://blog.csdn.net/ozuoqi/article/details/50261353

TImer的实现：http://blog.csdn.net/ozuoqi/article/details/50261151