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//Filename: TcpServerClass.hpp

#ifndef TCPSERVERCLASS_HPP_INCLUDED
#define TCPSERVERCLASS_HPP_INCLUDED

#include 
<unistd.h>
#include 
<iostream>
#include 
<sys/socket.h>
#include 
<arpa/inet.h>

class TcpServer
{
private:
    
int listenSock;
    
int communicationSock;
    sockaddr_in servAddr;
    sockaddr_in clntAddr;
public:
    TcpServer(
int listen_port);
    
bool isAccept();
    
void handleEcho();
};


#endif // TCPSERVERCLASS_HPP_INCLUDED

//Filename: TcpServerClass.cpp

#include 
"TcpServerClass.hpp"

TcpServer::TcpServer(
int listen_port)
{
    
if ( (listenSock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0 ) {
        
throw "socket() failed";
    }

    memset(
&servAddr, 0sizeof(servAddr));
    servAddr.sin_family 
= AF_INET;
    servAddr.sin_addr.s_addr 
= htonl(INADDR_ANY);
    servAddr.sin_port 
= htons(listen_port);

    
if ( bind(listenSock, (sockaddr*)&servAddr, sizeof(servAddr)) < 0 ) {
        
throw "bind() failed";
    }

    
if ( listen(listenSock, 10< 0 ) {
        
throw "listen() failed";
    }
}

bool TcpServer::isAccept()
{
    unsigned 
int clntAddrLen = sizeof(clntAddr);

    
if ( (communicationSock = accept(listenSock, (sockaddr*)&clntAddr, &clntAddrLen)) < 0 ) {
        
return false;
    } 
else {
        std::cout 
<< "Client(IP: " << inet_ntoa(clntAddr.sin_addr) << ") connected.\n";
        
return true;
    }
}

void TcpServer::handleEcho()
{
    
const int BUFFERSIZE = 32;
    
char buffer[BUFFERSIZE];
    
int recvMsgSize;
    
bool goon = true;

    
while ( goon == true ) {
        
if ( (recvMsgSize = recv(communicationSock, buffer, BUFFERSIZE, 0)) < 0 ) {
            
throw "recv() failed";
        } 
else if ( recvMsgSize == 0 ) {
            goon 
= false;
        } 
else {
            
if ( send(communicationSock, buffer, recvMsgSize, 0!= recvMsgSize ) {
                
throw "send() failed";
            }
        }
    }

    close(communicationSock);
}

演示程序:
//Filename: main.cpp
//Tcp Server C++ style, single work

#include 
<iostream>
#include 
"TcpServerClass.hpp"

int echo_server(int argc, char* argv[]);

int main(int argc, char* argv[])
{
    
int mainRtn = 0;
    
try {
        mainRtn 
= echo_server(argc, argv);
    }
    
catch ( const char* s ) {
        perror(s);
        exit(EXIT_FAILURE);
    }

    
return mainRtn;
}

int echo_server(int argc, char* argv[])
{
    
int port;
    
if ( argc == 2 ) {
        port 
= atoi(argv[1]);
    } 
else {
        port 
= 5000;
    }

    TcpServer myServ(port);

    
while ( true ) {
        
if ( myServ.isAccept() == true ) {
            myServ.handleEcho();
        }
    }

    
return 0;
}


posted on 2008-07-16 12:57 lf426 阅读(8260) 评论(3)  编辑 收藏 引用 所属分类: SDL入门教程Linux与C++socket 编程入门教程

FeedBack:
# re: Linux socket 编程入门(一)TCP server 端:8、本章的完整源代码 2009-10-31 11:09 Austin
不能编译通过ubuntu server 9.04
GCC 4.33

TcpServerClass.o: In function `__static_initialization_and_destruction_0(int, int)':
TcpServerClass.cpp:(.text+0x1d): undefined reference to `std::ios_base::Init::Init()'
TcpServerClass.cpp:(.text+0x22): undefined reference to `std::ios_base::Init::~Init()'
TcpServerClass.o: In function `TcpServer::handleEcho()':
TcpServerClass.cpp:(.text+0xbd): undefined reference to `__cxa_allocate_exception'
TcpServerClass.cpp:(.text+0xd7): undefined reference to `typeinfo for char const*'
TcpServerClass.cpp:(.text+0xdf): undefined reference to `__cxa_throw'
TcpServerClass.cpp:(.text+0x125): undefined reference to `__cxa_allocate_exception'
TcpServerClass.cpp:(.text+0x13f): undefined reference to `typeinfo for char const*'
TcpServerClass.cpp:(.text+0x147): undefined reference to `__cxa_throw'
TcpServerClass.o: In function `TcpServer::isAccept()':
TcpServerClass.cpp:(.text+0x1da): undefined reference to `std::cout'
TcpServerClass.cpp:(.text+0x1df): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
TcpServerClass.cpp:(.text+0x1eb): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
TcpServerClass.cpp:(.text+0x1fb): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
TcpServerClass.o: In function `TcpServer::TcpServer(int)':
TcpServerClass.cpp:(.text+0x24b): undefined reference to `__cxa_allocate_exception'
TcpServerClass.cpp:(.text+0x265): undefined reference to `typeinfo for char const*'
TcpServerClass.cpp:(.text+0x26d): undefined reference to `__cxa_throw'
TcpServerClass.cpp:(.text+0x2f3): undefined reference to `__cxa_allocate_exception'
TcpServerClass.cpp:(.text+0x30d): undefined reference to `typeinfo for char const*'
TcpServerClass.cpp:(.text+0x315): undefined reference to `__cxa_throw'
TcpServerClass.cpp:(.text+0x33d): undefined reference to `__cxa_allocate_exception'
TcpServerClass.cpp:(.text+0x357): undefined reference to `typeinfo for char const*'
TcpServerClass.cpp:(.text+0x35f): undefined reference to `__cxa_throw'
TcpServerClass.o: In function `TcpServer::TcpServer(int)':
TcpServerClass.cpp:(.text+0x3a3): undefined reference to `__cxa_allocate_exception'
TcpServerClass.cpp:(.text+0x3bd): undefined reference to `typeinfo for char const*'
TcpServerClass.cpp:(.text+0x3c5): undefined reference to `__cxa_throw'
TcpServerClass.cpp:(.text+0x44b): undefined reference to `__cxa_allocate_exception'
TcpServerClass.cpp:(.text+0x465): undefined reference to `typeinfo for char const*'
TcpServerClass.cpp:(.text+0x46d): undefined reference to `__cxa_throw'
TcpServerClass.cpp:(.text+0x495): undefined reference to `__cxa_allocate_exception'
TcpServerClass.cpp:(.text+0x4af): undefined reference to `typeinfo for char const*'
TcpServerClass.cpp:(.text+0x4b7): undefined reference to `__cxa_throw'
TcpServerClass.o:(.eh_frame+0x11): undefined reference to `__gxx_personality_v0'
main.o: In function `__static_initialization_and_destruction_0(int, int)':
main.cpp:(.text+0x1d): undefined reference to `std::ios_base::Init::Init()'
main.cpp:(.text+0x22): undefined reference to `std::ios_base::Init::~Init()'
main.o: In function `main':
main.cpp:(.text+0x11d): undefined reference to `__cxa_begin_catch'
main.cpp:(.text+0x148): undefined reference to `__cxa_end_catch'
main.o:(.gcc_except_table+0x18): undefined reference to `typeinfo for char const*'
main.o:(.eh_frame+0x12): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status
make: *** [main] Error 1  回复  更多评论
  
# re: socket 编程入门教程(一)TCP server 端:8、本章的完整源代码 2010-10-20 11:04 12345678
@Austin

用g++ 编译!


  回复  更多评论
  
# re: socket 编程入门教程(一)TCP server 端:8、本章的完整源代码 2015-08-29 12:55 xxz
你好我将你三个程序分别复制到三个文件中,然后编译main.cpp,用g++ 编译通不过
main.cpp: In function ‘int main(int, char**)’:
main.cpp:16:17: error: ‘perror’ was not declared in this scope
perror(s);
^
main.cpp:17:14: error: ‘EXIT_FAILURE’ was not declared in this scope
exit(EXIT_FAILURE);
^
main.cpp:17:26: error: ‘exit’ was not declared in this scope
exit(EXIT_FAILURE);
^
main.cpp: In function ‘int echo_server(int, char**)’:
main.cpp:27:28: error: ‘atoi’ was not declared in this scope
port = atoi(argv[1]);  回复  更多评论
  

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