tcplistenersocket.h

跨操作系统的微型中间件

/*
    File:       TCPListenerSocket.h

    Contains:   A TCP listener socket. When a new connection comes in, the listener
                attempts to assign the new connection to a socket object and a Task
                object. Derived classes must implement a method of getting new
                Task & socket objects
                    
    
*/


#ifndef __TCPLISTENERSOCKET_H__
#define __TCPLISTENERSOCKET_H__

#include "TCPSocket.h"

//创建一个监听SOCKET

class TCPListenerSocket : public TCPSocket
{
    public:

        TCPListenerSocket() : fAddr(0), fPort(0), fOutOfDescriptors(false) {}

        virtual ~TCPListenerSocket() {}
        
                                
        //addr = listening address. port = listening port. Automatically
        //starts listening
        OS_Error        Initialize(UInt32 addr, UInt16 port);

        //You can query the listener to see if it is failing to accept
        //connections because the OS is out of descriptors.
        Bool			IsOutOfDescriptors() { return fOutOfDescriptors; }

           
    private:
    
        enum
        {
            kTimeBetweenAcceptsInMsec = 1000,   //UInt32
            kListenQueueLength = 128            //UInt32
        };

        OS_Error		Listen(UInt32 queueLength);

        UInt32          fAddr;
        UInt16          fPort;
        
        Bool          fOutOfDescriptors;
};
#endif // __TCPLISTENERSOCKET_H__