ACE建立通信简单实例

参见：ace/5_3/ace_wrappers/docs/tutorials/guide-tutorials.html

Server:

// Server.h: interface for the Server class. // ////////////////////////////////////////////////////////////////////// #if !defined(AFX_SERVER_H__515BAD1C_3DC7_4162_8CD1_B0FD765C06CE__INCLUDED_) #define AFX_SERVER_H__515BAD1C_3DC7_4162_8CD1_B0FD765C06CE__INCLUDED_ #if _MSC_VER > 1000 #pragma once #endif // _MSC_VER > 1000 #include "ace/SOCK_Acceptor.h" #include "ace/SOCK_Stream.h" #include "ace/Log_Msg.h" #define SIZE_DATA 100 #define SIZE_BUF 1024 class Server { public: Server(int port) : server_addr_(port), peer_acceptor_(server_addr_) { data_buf_ = new char [SIZE_BUF]; } // virtual ~Server(); int handle_connection() { // read data from client if (new_stream_.recv_n(data_buf_, SIZE_DATA, 0) == -1) ACE_ERROR((LM_ERROR, "%p/n", "Error in recv")); ACE_DEBUG((LM_DEBUG, "Server received %s /n", data_buf_)); // close new endpoint. if (new_stream_.close() == -1) ACE_ERROR((LM_ERROR, "%p/n", "close")); return 0; } int 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()));/ // performs the iterative server activeities. 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 the connection handle_connection(); } } private: char *data_buf_; ACE_INET_Addr server_addr_; ACE_INET_Addr client_addr_; ACE_SOCK_Acceptor peer_acceptor_; ACE_SOCK_Stream new_stream_; }; #endif // !defined(AFX_SERVER_H__515BAD1C_3DC7_4162_8CD1_B0FD765C06CE__INCLUDED_

 

server main 函数：

 

#include "stdafx.h" #include "Client.h" #include "ace/os.h" int main(int argc, char* argv[]) { if (argc<3) { // ACE_DEBUG((LM_DEBUG, ?Usage egX<hostname><port_number>/n?)); ACE_DEBUG((LM_DEBUG, "Usage egX<hostname><port_number>/n")); ACE_OS::exit(1); } Client client(argv[1], ACE_OS::atoi(argv[2])); client.connect_to_server(); client.send_to_server(); // printf("Hello World!/n"); return 0; }

 

 

 

 

 

 

 

 

Client:

// lient.h: interface for the Client class. // ////////////////////////////////////////////////////////////////////// #if !defined(AFX_LIENT_H__B33796FC_ECEC_4DF4_8584_45F2C709634C__INCLUDED_) #define AFX_LIENT_H__B33796FC_ECEC_4DF4_8584_45F2C709634C__INCLUDED_ #if _MSC_VER > 1000 #pragma once #endif // _MSC_VER > 1000 #include "ace/Log_Msg.h" #include "ace/SOCK_Connector.h" #include "ace/INET_Addr.h" #define SIZE_BUF 128 #define NO_ITERATIONS 3 class Client { public: Client(char* serverName, int port) : remote_addr_(serverName) { remote_addr_.set(port, serverName); data_buf_ = new char[SIZE_BUF]; } // virtual ~Client(); int 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())); return 0; } int send_to_server() { // send_to_server ACE_OS::sprintf(data_buf_, "Hello from client"); for (int i=0; i<NO_ITERATIONS; i++) { if(client_stream_.send_n(data_buf_, ACE_OS::strlen(data_buf_), 0) == -1) { ACE_ERROR_RETURN((LM_ERROR, "(%P|%t) %p/n", "send_n"), 0); break; } } // close down the connection close(); } int close() { if (client_stream_.close() == -1) ACE_ERROR_RETURN((LM_ERROR, "(%P|%t) %p/n", "close"), -1); else return 0; } private: ACE_SOCK_Stream client_stream_; ACE_INET_Addr remote_addr_; ACE_SOCK_Connector connector_; char *data_buf_; }; #endif // !defined(AFX_LIENT_H__B33796FC_ECEC_4DF4_8584_45F2C709634C__INCLUDED_) 

 

 

Client Main 函数：

 

// IPCSAPClient.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include "Client.h" #include "ace/os.h" int main(int argc, char* argv[]) { if (argc<3) { // ACE_DEBUG((LM_DEBUG, ?Usage egX<hostname><port_number>/n?)); ACE_DEBUG((LM_DEBUG, "Usage egX<hostname><port_number>/n")); ACE_OS::exit(1); } Client client(argv[1], ACE_OS::atoi(argv[2])); client.connect_to_server(); client.send_to_server(); // printf("Hello World!/n"); return 0; }

 

小结：

server:

   ACE_INET_Addr:提供一个port来初始化一个服务器端saddr_in结构全为零，同时调整字节序。

   ACE_SOCK_Acceptor:提供了两个方法.

       open()--以正确的顺序调用socket, bind, listen.

       accept()-- 接受来自客户端的连接请求并初始化ace_sock_stream.

   ACE_SOCK_Stream:建立连接后通过recv之类的函数来接受客户端发送过来的数据。

 

client:

   ACE_INET_Addr:提供服务器的主机号，端口号以待连接。

   ACE_SOCK_Connector：通过connect方法来建立连接，同时初始化ace_sock_stream.

   ACE_SOCK_Stream:发送数据给指定的服务器。