Cocos2d-x 3.x利用Socket创建客户端和服务端
来源:互联网 发布:bloodstrike 比例数据 编辑:程序博客网 时间:2024/05/21 17:12
转载:http://blog.csdn.net/ctxdecs/article/details/42032279
Socket基类
包括Socket的初始化,主要是Windows上,在Android上就不需要了。
如果平台为Windows,则需要初始化
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SocketBase::SocketBase()
{
_bInitSuccess =
false
;
#
if
(CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
WORD
wVersionRequested;
wVersionRequested = MAKEWORD(2, 0);
WSADATA wsaData;
int
nRet = WSAStartup(wVersionRequested, &wsaData);
if
(nRet != 0)
{
fprintf
(stderr,
"Initilize Error!\n"
);
return
;
}
_bInitSuccess =
true
;
#endif
}
当然析构时也要释放资源
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SocketBase::~SocketBase()
{
#
if
(CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
if
(_bInitSuccess)
{
WSACleanup();
}
#endif
}
因为Windows的socket()返回的socket句柄为SOCKET(UINT_PTR)与Android的socket()返回的socket句柄int, 类型不一样,所以都定义为HSocket。
对于服务端和客户端都有关闭连接,所以基类就实现共同的。
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void
SocketBase::closeConnect(HSocket socket)
{
#
if
(CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
close(socket);
#elif (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
closesocket(socket);
#endif
}
当执行socket()出错时,Windows返回SOCKET_ERROR, Android返回<0,所以实现error()
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bool
SocketBase::error(HSocket socket)
{
#
if
(CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
return
socket == SOCKET_ERROR;
#elif (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
return
socket < 0;
#endif
}
SocketBase.h
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#ifndef __SOCKET_BASE_H__
#define __SOCKET_BASE_H__
#include "cocos2d.h"
#include <list>
#include <thread>
USING_NS_CC;
// 对于windows平台
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
#include <WinSock2.h>
#pragma comment(lib, "WS2_32.lib")
#define HSocket SOCKET
// 对于android平台
#elif (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
#include <arpa/inet.h> // for inet_**
#include <netdb.h> // for gethost**
#include <netinet/in.h> // for sockaddr_in
#include <sys/types.h> // for socket
#include <sys/socket.h> // for socket
#include <unistd.h>
#include <stdio.h> // for printf
#include <stdlib.h> // for exit
#include <string.h> // for bzero
#define HSocket int
#endif
class
SocketBase :
public
Ref
{
public
:
SocketBase();
~SocketBase();
protected
:
void
closeConnect(HSocket socket);
bool
error(HSocket socket);
protected
:
std::mutex _mutex;
private
:
bool
_bInitSuccess;
};
#endif
服务端
初始化服务端
向指定客户端发送消息
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void
sendMessage(HSocket socket,
const
char
* data,
int
count);
向所有客户端发送消息
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void
sendMessage(
const
char
* data,
int
count);
当服务端开启后的回调函数
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std::function<
void
(
const
char
* ip)> onStart;
当有新连接时的回调函数
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std::function<
void
(HSocket socket)> onNewConnection;
当有消息时的回调函数
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std::function<
void
(
const
char
* data,
int
count)> onRecv;
当有客户端断开连接时的回调函数
1
std::function<
void
(HSocket socket)> onDisconnect;
SocketServer.h
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#ifndef __SOCKET_SERVER_H__
#define __SOCKET_SERVER_H__
#include "SocketBase.h"
class
SocketServer :
public
SocketBase
{
public
:
static
SocketServer* create();
SocketServer();
~SocketServer();
bool
startServer();
void
sendMessage(HSocket socket,
const
char
* data,
int
count);
void
sendMessage(
const
char
* data,
int
count);
std::function<
void
(
const
char
* ip)> onStart;
std::function<
void
(HSocket socket)> onNewConnection;
std::function<
void
(
const
char
* data,
int
count)> onRecv;
std::function<
void
(HSocket socket)> onDisconnect;
private
:
bool
initServer();
void
acceptClient();
void
acceptFunc();
void
newClientConnected(HSocket socket);
void
recvMessage(HSocket socket);
private
:
HSocket _socketServer;
private
:
std::list<HSocket> _clientSockets;
};
#endif
SocketServer.cpp
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#include "SocketServer.h"
SocketServer* SocketServer::create()
{
auto server =
new
SocketServer;
return
server;
}
SocketServer::SocketServer() :
_socketServer(0),
onRecv(nullptr),
onStart(nullptr),
onNewConnection(nullptr)
{
}
SocketServer::~SocketServer()
{
_clientSockets.clear();
if
(_socketServer)
{
this
->closeConnect(_socketServer);
}
};
bool
SocketServer::startServer()
{
if
(!initServer())
{
return
false
;
}
return
true
;
}
bool
SocketServer::initServer()
{
if
(_socketServer != 0)
{
this
->closeConnect(_socketServer);
}
_socketServer = socket(AF_INET, SOCK_STREAM, 0);
if
(error(_socketServer))
{
log
(
"socket error!"
);
_socketServer = 0;
return
false
;
}
do
{
struct
sockaddr_in sockAddr;
memset
(&sockAddr, 0,
sizeof
(sockAddr));
sockAddr.sin_family = AF_INET;
sockAddr.sin_port = htons(8000);
sockAddr.sin_addr.s_addr = htonl(INADDR_ANY);
int
ret = 0;
ret = bind(_socketServer, (
const
sockaddr*)&sockAddr,
sizeof
(sockAddr));
if
(ret < 0)
{
log
(
"bind error!"
);
break
;
}
ret = listen(_socketServer, 5);
if
(ret < 0)
{
log
(
"listen error!"
);
break
;
}
// start
char
hostName[256];
gethostname(hostName,
sizeof
(hostName));
struct
hostent* hostInfo = gethostbyname(hostName);
char
* ip = inet_ntoa(*(
struct
in_addr *)*hostInfo->h_addr_list);
this
->acceptClient();
if
(onStart != nullptr)
{
log
(
"start server!"
);
onStart(ip);
}
return
true
;
}
while
(
false
);
this
->closeConnect(_socketServer);
_socketServer = 0;
return
false
;
}
void
SocketServer::acceptClient()
{
std::
thread
th(&SocketServer::acceptFunc,
this
);
th.detach();
}
void
SocketServer::acceptFunc()
{
int
len =
sizeof
(sockaddr);
struct
sockaddr_in sockAddr;
while
(
true
)
{
HSocket clientSock = accept(_socketServer, (sockaddr*)&sockAddr, &len);
if
(error(clientSock))
{
log
(
"accept error!"
);
break
;
}
this
->newClientConnected(clientSock);
}
}
void
SocketServer::newClientConnected(HSocket socket)
{
log
(
"new connect!"
);
_clientSockets.push_back(socket);
std::
thread
th(&SocketServer::recvMessage,
this
, socket);
th.detach();
if
(onNewConnection != nullptr)
{
onNewConnection(socket);
}
}
void
SocketServer::recvMessage(HSocket socket)
{
char
buff[1024];
int
ret = 0;
while
(
true
)
{
ret = recv(socket, buff,
sizeof
(buff), 0);
if
(ret < 0)
{
log
(
"recv(%d) error!"
, socket);
_mutex.lock();
this
->closeConnect(socket);
_clientSockets.
remove
(socket);
if
(onDisconnect != nullptr)
{
onDisconnect(socket);
}
_mutex.unlock();
break
;
}
else
{
buff[ret] = 0;
log
(
"recv msg : %s"
, buff);
if
(ret > 0 && onRecv != nullptr)
{
onRecv(buff, ret);
}
}
}
}
void
SocketServer::sendMessage(HSocket socket,
const
char
* data,
int
count)
{
for
(auto& sock : _clientSockets)
{
if
(sock == socket)
{
int
ret = send(socket, data, count, 0);
if
(ret < 0)
{
log
(
"send error!"
);
}
break
;
}
}
}
void
SocketServer::sendMessage(
const
char
* data,
int
count)
{
for
(auto& socket : _clientSockets)
{
int
ret = send(socket, data, count, 0);
if
(ret < 0)
{
log
(
"send error!"
);
}
}
}
客户端
连接服务端
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bool
connectServer(
const
char
* serverIP, unsigned
short
port);
向服务端发送消息
1
void
sendMessage(
const
char
* data,
int
count);
接受服务端数据的回调函数
1
std::function<
void
(
const
char
* data,
int
count)> onRecv;
断开连接的回调函数
1
std::function<
void
()> onDisconnect;
SocketClient.h
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#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
SocketClient.cpp
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#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, 0,
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!"
);
}
}
}
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