Poco是一个设计相当好的C++框架库。
RunnableAdaptor,继承自Runnable,提供了注册和执行类成员函数的接口。
Runnable的类定义如下:
这个类设计思想来源JAVA,任何可运行的东西都可以继承自Runnable,只要重写它的run方法。
RunnableAdaptor就是这样一个Runnable,但是它包装了某个类成员函数的注册和执行。也就是说,借用这个RunnableAdaptor就可以执行某个类的成员函数的代码。很有意思。
RunnableAdaptor,继承自Runnable,提供了注册和执行类成员函数的接口。
Runnable的类定义如下:
class Foundation_API Runnable
/// The Runnable interface with the run() method
/// must be implemented by classes that provide
/// an entry point for a thread.
{
public:
Runnable();
virtual ~Runnable();
virtual void run() = 0;
/// Do whatever the thread needs to do. Must
/// be overridden by subclasses.
};[/c]
/// The Runnable interface with the run() method
/// must be implemented by classes that provide
/// an entry point for a thread.
{
public:
Runnable();
virtual ~Runnable();
virtual void run() = 0;
/// Do whatever the thread needs to do. Must
/// be overridden by subclasses.
};
这个类设计思想来源JAVA,任何可运行的东西都可以继承自Runnable,只要重写它的run方法。
RunnableAdaptor就是这样一个Runnable,但是它包装了某个类成员函数的注册和执行。也就是说,借用这个RunnableAdaptor就可以执行某个类的成员函数的代码。很有意思。
template <class C>
class RunnableAdapter: public Runnable
/// This adapter simplifies using ordinary methods as
/// targets for threads.
/// Usage:
/// RunnableAdapter<MyClass> ra(myObject, &MyObject::doSomething));
/// Thread thr;
/// thr.Start(ra);
///
/// For using a freestanding or static member function as a thread
/// target, please see the ThreadTarget class.
{
public:
typedef void (C::*Callback)();
RunnableAdapter(C& object, Callback method): _pObject(&object), _method(method)
{
}
RunnableAdapter(const RunnableAdapter& ra): _pObject(ra._pObject), _method(ra._method)
{
}
~RunnableAdapter()
{
}
RunnableAdapter& operator = (const RunnableAdapter& ra)
{
_pObject = ra._pObject;
_method = ra._method;
return *this;
}
void run()
{
(_pObject->*_method)();
}
private:
RunnableAdapter();
C* _pObject;
Callback _method;
};
方法就是提供callback,类似于boost::function。