cocos2dx3.x利用sokcet创建客户端和服务端 (三)

客户端：

连接服务端

boolconnectServer(constchar*serverIP,unsignedshortport);

向服务端发送消息

voidsendMessage(char*data,255)">intcount);

接受服务端数据的回调函数

std::function<void(intcount)>onRecv;

断开连接的回调函数

std::void()>onDisconnect;

SocketClient.h

#ifndef __SOCKET_CLIENT_H__
#define __SOCKET_CLIENT_H__
#include "SocketBase.h"

class SocketClient : public SocketBase
{
public:
	SocketClient(void);
	~SocketClient(void);

	bool connectServer(const char* serverIP,unsigned short port);
	void sendMessage(const char* data,int count);

	std::function<void(const char* data,int count)> onRecv;
	std::function<void()> onDisconnect;

private:
	bool initClient();
	void recvMessage();

private:
	HSocket _socketServer;
	HSocket _socektClient;
};

#endif

#include "SocketClient.h"


SocketClient::SocketClient(void) :
	onRecv(nullptr),_socektClient(0)
{
}


SocketClient::~SocketClient(void)
{
	if (_socektClient != 0)
	{
		_mutex.lock();
		this->closeConnect(_socektClient);
		_mutex.unlock();
	}
}

bool SocketClient::initClient()
{
	if (_socektClient != 0)
	{
		_mutex.lock();
		this->closeConnect(_socektClient);
		_mutex.unlock();
	}

	_socektClient = socket(AF_INET,SOCK_STREAM,0);
	if (error(_socketServer))
	{
		log("init client error!");
		_socektClient = 0;
		return false;
	}

	return true;
}

bool SocketClient::connectServer(const char* serverIP,unsigned short port)
{
	if (!this->initClient())
	{
		return false;
	}

	struct sockaddr_in serverAddr;
	memset(&serverAddr,sizeof(struct sockaddr_in));

	serverAddr.sin_family = AF_INET;
	serverAddr.sin_port = htons(port);
	serverAddr.sin_addr.s_addr = inet_addr(serverIP);

	int ret = 0;
	ret = connect(_socektClient,(struct sockaddr*)&serverAddr,sizeof(struct sockaddr));
	if (ret < 0)
	{
		this->closeConnect(_socektClient);
		_socektClient = 0;
		return false;
	}

	std::thread recvThread(&SocketClient::recvMessage,this);
	recvThread.detach();
	return true;
}

void SocketClient::recvMessage()
{
	char recvBuf[1024];
	int ret = 0;
	while (true)
	{
		ret = recv(_socektClient,recvBuf,sizeof(recvBuf),0);
		if (ret < 0)
		{
			log("recv error");
			break;
		}
		if (ret > 0 && onRecv != nullptr)
		{
			onRecv(recvBuf,ret);
		}
	}
	_mutex.lock();
	this->closeConnect(_socektClient);
	if (onDisconnect != nullptr)
	{
		onDisconnect();
	}
	_socektClient = 0;
	_mutex.unlock();
}

void SocketClient::sendMessage(const char* data,int count)
{
	if (_socektClient != 0)
	{
		int ret = send(_socektClient,data,count,0);
		if (ret < 0)
		{
			log("send error!");
		}
	}
}

（编辑：李大同）

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