localpeerfinder.h

mysee网络直播源代码Mysee Lite是Mysee独立研发的网络视频流媒体播放系统。在应有了P2P技术和一系列先进流媒体技术之后

/*
 *  Openmysee
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#ifndef _LOCALPEERFINDER_H_
#define _LOCALPEERFINDER_H_

namespace NPLayer1 {
class Communicator;

class LocalPeerFinder {
public:
	LocalPeerFinder(Communicator*);
	~LocalPeerFinder();

	// 开始运行
	P2P_RETURN_TYPE Init();

	// 停止运行
	void Uninit();
	
	SOCKET GetSocket() { return m_Socket; }

	BOOL IsRunning() { return isRunning; }

	// 读取其他peer的广播
	P2P_RETURN_TYPE ReadBroadcast();

	// 广播自己的信息
	P2P_RETURN_TYPE SendBroadcast();

private:
	
	// 向指定端口广播自己的信息
	P2P_RETURN_TYPE SendSelfInfo(unsigned short port);

	// 创建Socket, 依次尝试端口并监听
	P2P_RETURN_TYPE Binding();

	// 查找本机的内网地址
	DWORD DetectInnerAddr();

private:
	// 封装要广播的信息
	struct LocalPeerInfo {
		char channel[MD5_LEN]; // 当前正在看的频道MD5编码
		PeerInfoWithAddr peerInfo;	//节点信息
		float version; // 软件版本
		char checksum[MD5_LEN]; // 检验
	};

	SOCKET m_Socket;	// 当前监听的Socket
	BOOL isRunning;	// 是否正在运行

	Communicator* comm;
};
}
#endif /* _LOCALPEERFINDER_H_ */