ACE学习之创建简单的服务器端和客户端

ACE入门学习之创建简单的服务器端和客户端

ACE自适配通行环境(Adaptive Communicatin Environment)是面向对象的框架和工具包。它为通信软件实现了核心的并发和分布式模式。

ACE具有分层的体系结构，基本分为三层：

1. 操作系统适配层(OS)

2. C++包装层

3. 框架和模式层

Sock类属（ACE_SOCK）:

1. Dgram类和Stream类：Dgram类基于UDP数据报协议，提供不可靠的无连接消息传递功能。另一方面，Stream类基于TCP协议，提供面向连接的消息传递.

2. Acceptor、Connector类和Stream类：Acceptor和Connector类分别用于被动和主动地建立连接。Acceptor类封装BSD accept()调用，而Connector封装BSD connect()调用。Stream类用于在连接建立之后提供双向的数据流，并包含有发送和接收.

ACE中流包装中提供面向连接的通信，数据传输类包括ACE_SOCK_Stream类，建立连接的针对于TCP/IP的ACE_SOCK_Connector 和 ACE_SOCK_Acceptor.

创建一个服务器端所要创建的变量：

ACE_INET_Addr server_addr_;

ACE_SOCK_Acceptor

ACE_SOCK_Connector

ACE_SOCK_Stream

而客户端则多了个：

ACE_SOCK_Connector

服务器开启侦听代码：

Cpp代码



//ACE_Server.h

#include"ace/SOCK_Acceptor.h"

#include"ace/SOCK_Stream.h"

#include"ace/Log_Msg.h"

#include"ace/Time_Value.h"

#define SIZE_DATA 18

#define SIZE_BUF 1024

#define NO_INTERATION 5

class ACE_Server

{

public:

ACE_Server(int port);

~ACE_Server();

int handle_connection();

int accept_connections();

private:

char *data_buf_;

ACE_INET_Addr server_addr_;

ACE_INET_Addr client_addr_;

ACE_SOCK_Acceptor peer_acceptor_;

ACE_SOCK_Stream new_stream_;

};

//ACE_Server.cpp

#include"stdafx.h"

#include"ACE_Server.h"

ACE_Server::ACE_Server(int port) : server_addr_(port), peer_acceptor_(server_addr_)

{

data_buf_ = newchar[SIZE_BUF];

}

ACE_Server::~ACE_Server()

{

delete []data_buf_;

data_buf_ = NULL;

}

int ACE_Server::handle_connection()

{

for (int i=0; i < NO_INTERATION; i++)

{

int byte_count = 0;

if ((byte_count = new_stream_.recv(data_buf_,SIZE_DATA,0)) == -1)

{

ACE_ERROR ((LM_ERROR, "%p\n", "Error in recv"));

}

else

{

data_buf_[byte_count] = '\0';

ACE_DEBUG((LM_DEBUG,"Server received %s \n",data_buf_));

}

}

if (new_stream_.close() == -1)

ACE_ERROR((LM_ERROR, "%p\n","Close Error"));

return0;

}

int ACE_Server::accept_connections()

{

if (peer_acceptor_.get_local_addr(server_addr_) == -1)

ACE_ERROR_RETURN((LM_ERROR,"%p \n","Error in get_local_addr"),1);

ACE_DEBUG((LM_DEBUG,"Starting server at port: %d \n",server_addr_.get_port_number()));

while(1)

{

ACE_Time_Value timeout(ACE_DEFAULT_TIMEOUT);

if (peer_acceptor_.accept(new_stream_,&client_addr_,&timeout) == -1)

{

ACE_ERROR((LM_ERROR,"%p \n","Accept"));

continue;

}

else

{

ACE_DEBUG((LM_DEBUG,"Connection established with remote %s : %d \n",

client_addr_.get_host_name(), client_addr_.get_port_number()));

handle_connection();

}

}

}

//main

#include"ACE_Server.h"

int _tmain(int argc, _TCHAR* argv[])

{

WORD wVersionRequested;

WSADATA wsaData;

int err;

wVersionRequested = MAKEWORD( 2, 2 );

err = WSAStartup( wVersionRequested, &wsaData );

if ( err != 0 ) {

return0;

}

if ( LOBYTE( wsaData.wVersion ) != 2 ||

HIBYTE( wsaData.wVersion ) != 2 ) {

WSACleanup( );

return0;

}

ACE_Server server(1234);

server.accept_connections();

getchar();

return0;

}

客户端

Cpp代码



//Client.h:

#define SIZE_BUF 128

#define NO_INTERATION 5

class ACE_Client_

{

public:

ACE_Client_(char* hostname, int port);

int connect_to_server();

int send_to_server();

int close();

private:

ACE_SOCK_Stream client_stream_;

ACE_INET_Addr remote_addr_;

ACE_SOCK_Connector connector_;

char* data_buf_;

};

//Client.cpp

#include"stdafx.h"

#include"Client.h"

ACE_Client_::ACE_Client_(char* hostname, int port) : remote_addr_(port, hostname)

{

data_buf_ = "Hello from Client";

}

int ACE_Client_::connect_to_server()

{

ACE_DEBUG((LM_DEBUG, "(%P | %T) Starting connect to %s:%d \n",

remote_addr_.get_host_name(), remote_addr_.get_port_number()));

if (connector_.connect(client_stream_, remote_addr_) == -1)

{

ACE_ERROR_RETURN((LM_ERROR,"(%p | %t) %p\n", "Connection failed"), -1);

}

else

{

ACE_DEBUG((LM_DEBUG, "(%P | %T) connected to %s\n", remote_addr_.get_host_name()));

}

return0;

}

int ACE_Client_::send_to_server()

{

for (int i=0; i < NO_INTERATION; i++)

{

if (client_stream_.send_n(data_buf_, strlen(data_buf_)+1, 0) == -1 )

ACE_ERROR_RETURN((LM_ERROR, "(%p | %t) %p\n", "send to"), 0);

else

ACE_DEBUG((LM_DEBUG, "(%T) Send Message to Server\n"));

}

close();

}

int ACE_Client_::close()

{

if (client_stream_.close() == -1)

ACE_ERROR_RETURN((LM_ERROR, "(%p | %t) %p \n", "close"), -1);

else

return0;

}

//main

int _tmain(int argc, _TCHAR* argv[])

{

WORD wVersionRequested;

WSADATA wsaData;

int err;

wVersionRequested = MAKEWORD( 2, 2 );

err = WSAStartup( wVersionRequested, &wsaData );

if ( err != 0 ) {

return0;

}

if ( LOBYTE( wsaData.wVersion ) != 2 ||

HIBYTE( wsaData.wVersion ) != 2 ) {

WSACleanup( );

return0;

}

ACE_Client_ client("wangj",1234);

client.connect_to_server();

client.send_to_server();

getchar();

return0;

}