C++ C++;带线程的网络类
我正在尝试使基于MSDN Winsocket示例创建的通信类正常工作: 构建时,我收到错误信息:C++ C++;带线程的网络类,c++,multithreading,class,network-programming,C++,Multithreading,Class,Network Programming,我正在尝试使基于MSDN Winsocket示例创建的通信类正常工作: 构建时,我收到错误信息: "Error 1 error C3867: 'Communication::AcceptClients': function call missing argument list; use '&Communication::AcceptClients' to create a pointer to member c:\users\bobby black\documents\visua
"Error 1 error C3867: 'Communication::AcceptClients': function call missing argument list; use '&Communication::AcceptClients' to create a pointer to member c:\users\bobby black\documents\visual studio 2012\projects\communication\communication\communication.cpp 67"
通过google阅读,我发现在类内创建线程时应该使用静态函数;但是在实现这个时,我似乎很难为该类实例分配connectSocket、listenSocket和*IP。我希望能够使用它们,以便可以使用client.Send()。我知道服务器.Send()当前无法工作。我只想让客户先发送
不使用预先构建的网络库,解决此问题的实用方法是什么
Source.cpp
通讯
#pragma一次
#未定义UNICODE
#定义WIN32_精益_和_平均值
#包括//标准::打印格式
#include//std::thread
#包括//WSADATA、SOCKET、ZeroMemory()、WSACleanup()、SOCKET()、listen()
#包括//睡眠
#包括//freeaddrinfo(),getaddrinfo()
#pragma注释(lib,“Ws2_32.lib”)//外部引用
班级交流
{
公众:
插座连接插座;
SOCKET-listenSocket;
字符*IP;
int-Listen(PCSTR端口);
void WINAPI AcceptClients();
void WINAPI Receive();
int Connect(PCSTR主机名、PCSTR端口);
int发送(std::字符串文本);
};
Communication.cpp
#包括“Communication.h”
int通信::侦听(PCSTR端口)
{
WSADATA WSADATA;
国际结果;
struct addrinfo*result=NULL,提示;
//初始化Winsock
iResult=WSAStartup(MAKEWORD(2,2)和wsaData);
如果(iResult!=0)
{
printf_s(“WSAStartup失败,错误:%d\n”,iResult);
返回0;
}
printf_s(“初始化Winsock完成”);
零内存(&提示,sizeof(提示));
hits.ai_family=AF_INET;
hits.ai_socktype=SOCK_流;
hits.ai_protocol=IPPROTO_TCP;
hits.ai_flags=ai_被动;
//解析服务器地址和端口
iResult=getaddrinfo(NULL、端口、提示和结果);
如果(iResult!=0)
{
printf_s(“getaddrinfo失败,错误:%d\n”,iResult);
WSACleanup();
返回0;
}
printf_s(“解析服务器地址和端口完成\n”);
//创建用于连接到服务器的套接字
listenSocket=socket(结果->ai_族,结果->ai_socktype,结果->ai_协议);
if(listenSocket==无效的_套接字)
{
printf_s(“套接字失败,错误:%ld\n”,WSAGetLastError());
freeaddrinfo(结果);
WSACleanup();
返回0;
}
printf_s(“创建连接到服务器的套接字完成\n”);
//设置TCP侦听套接字
iResult=bind(listenSocket,result->ai_addr,(int)result->ai_addrlen);
if(iResult==SOCKET\u错误)
{
printf_s(“绑定失败,错误:%d\n”,WSAGetLastError());
freeaddrinfo(结果);
闭合插座(listenSocket);
WSACleanup();
返回0;
}
freeaddrinfo(结果);
iResult=侦听(listenSocket,SOMAXCONN);
if(iResult==SOCKET\u错误)
{
printf_s(“侦听失败,错误:%d\n”,WSAGetLastError());
闭合插座(listenSocket);
WSACleanup();
返回0;
}
printf_s(“设置TCP侦听套接字完成”);
//持续接受客户端套接字
std::线程l(通信::接受客户端);
l、 分离();
printf_s(“持续接受正在运行的客户端套接字…\n”);
返回1;
}
void WINAPI通信::AcceptClients()
{
客户端信息中的SOCKADDR\u={0};
int addrsize=sizeof(客户信息);
while(true)
{
connectSocket=accept(listenSocket,(struct sockaddr*)和client_info,&addrsize);
while(connectSocket==SOCKET\u错误)
connectSocket=accept(listenSocket,(struct sockaddr*)和client_info,&addrsize);
char*IP=inet\u ntoa(客户信息单地址);
printf_s(“接受来自%s完成\n”,IP);
std::线程a(通信::接收);
a、 分离();
}
}
void WINAPI通信::Receive()
{
国际结果;
字符接收缓冲区[512];
做
{
iResult=recv(connectSocket,receiveBuffer,512,0);
if(iResult==SOCKET\u错误)
{
printf(“recv失败,错误:%d\n”,WSAGetLastError());
闭合插座(连接插座);
WSACleanup();
回来
}
如果(iResult<512)
receiveBuffer[iResult]='\0';
其他的
receiveBuffer[512]='\0';
如果(iResult>0)
{
printf_s(“收到的字节数:%i-收到的数据:%s\n”,iResult,receiveBuffer);
printf_s(“收到的数据:%s\n”,receiveBuffer);
}
else if(iResult==0)
{
printf_s(“连接已关闭”);
闭合插座(连接插座);
WSACleanup();
回来
}
其他的
{
printf_s(“recv失败,错误:%d\n”,WSAGetLastError());
闭合插座(连接插座);
WSACleanup();
回来
}
}而(iResult>0);
//清理
闭合插座(连接插座);
WSACleanup();
}
int通信::连接(PCSTR主机名、PCSTR端口)
{
WSADATA WSADATA;
SOCKET connectSocket=无效的_套接字;
struct addrinfo*result=NULL,*ptr=NULL,提示;
国际结果;
//初始化Winsock
iResult=WSAStartup(MAKEWORD(2,2)和wsaData);
如果(iResult!=0){
printf(“WSAStartup失败,错误:%d\n”,iResult);
返回0;
}
printf(“初始化Winsock完成\n”);
零内存(&提示,sizeof(提示));
hits.ai_family=AF_unsec;
hits.ai_socktype=SOCK_流;
hits.ai_protocol=IPPROTO_TCP;
//解析服务器地址和端口
iResult=getaddrinfo(主机名、端口、提示和结果);
如果(iResult!=0){
printf(“getaddrinfo失败,错误:%d\n”,iResult);
WSACleanup();
返回0;
}
#include "Communication.h"
void main()
{
Communication server;
server.Listen("2000");
Communication client;
client.Connect("LOCALHOST", "2000");
client.Send("Hello world!");
Sleep(120000);
}
#pragma once
#undef UNICODE
#define WIN32_LEAN_AND_MEAN
#include <iostream> // std::printf_s
#include <thread> // std::thread
#include <winsock2.h> // WSADATA, SOCKET, ZeroMemory(), WSACleanup(), socket(), listen()
#include <windows.h> // Sleep
#include <ws2tcpip.h> // freeaddrinfo(), getaddrinfo()
#pragma comment (lib, "Ws2_32.lib") //External References
class Communication
{
public:
SOCKET connectSocket;
SOCKET listenSocket;
char *IP;
int Listen(PCSTR port);
void WINAPI AcceptClients();
void WINAPI Receive();
int Connect(PCSTR hostname, PCSTR port);
int Send(std::string text);
};
#include "Communication.h"
int Communication::Listen(PCSTR port)
{
WSADATA wsaData;
int iResult;
struct addrinfo *result = NULL, hints;
// Initialize Winsock
iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (iResult != 0)
{
printf_s("WSAStartup failed with error: %d\n", iResult);
return 0;
}
printf_s("Initialize Winsock complete\n");
ZeroMemory(&hints, sizeof(hints));
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
hints.ai_flags = AI_PASSIVE;
// Resolve the server address and port
iResult = getaddrinfo(NULL, port, &hints, &result);
if (iResult != 0)
{
printf_s("getaddrinfo failed with error: %d\n", iResult);
WSACleanup();
return 0;
}
printf_s("Resolve the server address and port complete\n");
// Create a SOCKET for connecting to server
listenSocket = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
if (listenSocket == INVALID_SOCKET)
{
printf_s("socket failed with error: %ld\n", WSAGetLastError());
freeaddrinfo(result);
WSACleanup();
return 0;
}
printf_s("Create a SOCKET for connecting to server complete\n");
// Setup the TCP listening socket
iResult = bind(listenSocket, result->ai_addr, (int)result->ai_addrlen);
if (iResult == SOCKET_ERROR)
{
printf_s("bind failed with error: %d\n", WSAGetLastError());
freeaddrinfo(result);
closesocket(listenSocket);
WSACleanup();
return 0;
}
freeaddrinfo(result);
iResult = listen(listenSocket, SOMAXCONN);
if (iResult == SOCKET_ERROR)
{
printf_s("listen failed with error: %d\n", WSAGetLastError());
closesocket(listenSocket);
WSACleanup();
return 0;
}
printf_s("Setup the TCP listening socket complete\n");
// Continuously accept a client socket
std::thread l(Communication::AcceptClients);
l.detach();
printf_s("Continuously accept a client socket running...\n");
return 1;
}
void WINAPI Communication::AcceptClients()
{
SOCKADDR_IN client_info = { 0 };
int addrsize = sizeof(client_info);
while (true)
{
connectSocket = accept(listenSocket, (struct sockaddr*)&client_info, &addrsize);
while (connectSocket == SOCKET_ERROR)
connectSocket = accept(listenSocket, (struct sockaddr*)&client_info, &addrsize);
char *IP = inet_ntoa(client_info.sin_addr);
printf_s("accept from %s complete\n", IP);
std::thread a(Communication::Receive);
a.detach();
}
}
void WINAPI Communication::Receive()
{
int iResult;
char receiveBuffer[512];
do
{
iResult = recv(connectSocket, receiveBuffer, 512, 0);
if (iResult == SOCKET_ERROR)
{
printf("recv failed with error: %d\n", WSAGetLastError());
closesocket(connectSocket);
WSACleanup();
return;
}
if (iResult < 512)
receiveBuffer[iResult] = '\0';
else
receiveBuffer[512] = '\0';
if (iResult > 0)
{
printf_s("Bytes received: %i - Data received: %s\n", iResult, receiveBuffer);
printf_s("Data Received: %s\n", receiveBuffer);
}
else if (iResult == 0)
{
printf_s("Connection closed\n");
closesocket(connectSocket);
WSACleanup();
return;
}
else
{
printf_s("recv failed with error: %d\n", WSAGetLastError());
closesocket(connectSocket);
WSACleanup();
return;
}
} while (iResult > 0);
// cleanup
closesocket(connectSocket);
WSACleanup();
}
int Communication::Connect(PCSTR hostname, PCSTR port)
{
WSADATA wsaData;
SOCKET connectSocket = INVALID_SOCKET;
struct addrinfo *result = NULL, *ptr = NULL, hints;
int iResult;
// Initialize Winsock
iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (iResult != 0) {
printf("WSAStartup failed with error: %d\n", iResult);
return 0;
}
printf("Initialize Winsock complete\n");
ZeroMemory(&hints, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
// Resolve the server address and port
iResult = getaddrinfo(hostname, port, &hints, &result);
if (iResult != 0) {
printf("getaddrinfo failed with error: %d\n", iResult);
WSACleanup();
return 0;
}
printf("Resolve the server address and port complete\n");
// Attempt to connect to an address until one succeeds
for (ptr = result; ptr != NULL; ptr = ptr->ai_next) {
// Create a SOCKET for connecting to server
connectSocket = socket(ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol);
if (connectSocket == INVALID_SOCKET) {
printf("socket failed with error: %ld\n", WSAGetLastError());
WSACleanup();
return 0;
}
printf("Create a SOCKET for connecting to server complete\n");
// Connect to server.
iResult = connect(connectSocket, ptr->ai_addr, (int)ptr->ai_addrlen);
if (iResult == SOCKET_ERROR) {
closesocket(connectSocket);
connectSocket = INVALID_SOCKET;
continue;
}
printf("Connect to server complete\n");
break;
}
freeaddrinfo(result);
if (connectSocket == INVALID_SOCKET) {
printf("Unable to connect to server!\n");
WSACleanup();
return 0;
}
printf("Attempt to connect to an address until one succeeds complete\n");
std::string tempIP = hostname;
char *IP = new char[tempIP.length() + 1];
strcpy(IP, tempIP.c_str());
// Receive until the peer closes the connection
std::thread c(Communication::Receive);
c.detach();
printf("Receive until the peer closes the connection running...\n");
return 1;
}
int Communication::Send(std::string text)
{
char *sendBuffer = new char[text.length() + 1];
strcpy(sendBuffer, text.c_str());
// Send text
int iResult;
iResult = send(connectSocket, sendBuffer, (int)strlen(sendBuffer), 0);
if (iResult == SOCKET_ERROR) {
printf("send failed with error: %d\n", WSAGetLastError());
closesocket(connectSocket);
WSACleanup();
return 0;
}
printf("Bytes Sent: %ld - Data Sent: %s\n", iResult, sendBuffer);
return 1;
}