<HTML> <!-- ex04.html,v 1.4 2001/01/31 17:22:27 shuston Exp --> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META NAME="Author" CONTENT="Ambreen Ilyas"> <META NAME="GENERATOR" CONTENT="Mozilla/4.05 [en] (X11; I; SunOS 5.5.1 sun4u) [Netscape]"> <TITLE>Example 4</TITLE> </HEAD> <BODY> <FONT COLOR="#CC0000">/////////////////////////////////////////////////////////////////////////////////////////////////////////////////</FONT> <BR><FONT COLOR="#CC0000">//// This example is from the ACE Programmers Guide.</FONT> <BR><FONT COLOR="#CC0000">//// Chapter: "IPC SAP" (Interprocess Communication Mechanisms in ACE).</FONT> <BR><FONT COLOR="#CC0000">//// For details please see the guide at</FONT> <BR><FONT COLOR="#CC0000">//// http://www.cs.wustl.edu/~schmidt/ACE.html</FONT> <BR><FONT COLOR="#CC0000">//// AUTHOR: Umar Syyid (usyyid@hns.com)</FONT> <BR><FONT COLOR="#CC0000">//// and Ambreen Ilyas (ambreen@bitsmart.com)</FONT> <BR><FONT COLOR="#CC0000">/////////////////////////////////////////////////////////////////////////////////////////////////////////////</FONT> <P><FONT COLOR="#CC0000">//Example 4</FONT> <BR><FONT COLOR="#FF0000">//Client</FONT> <BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/OS.h"</FONT> <BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/SOCK_Dgram.h"</FONT> <BR><FONT COLOR="#000099">#include</FONT> <FONT COLOR="#006600">"ace/INET_Addr.h"</FONT> <P><FONT COLOR="#000099">#define</FONT> <FONT COLOR="#663366">DATA_BUFFER_SIZE 1024</FONT> <BR><FONT COLOR="#000099">#define</FONT> <FONT COLOR="#663366">SIZE_DATA 28</FONT> <BR>class Client{ <BR>public: <BR>Client(char * remote_addr,int port) <BR> :remote_addr_(remote_addr), <BR> local_addr_((u_short)0),local_(local_addr_){ <BR> data_buf = new char[DATA_BUFFER_SIZE]; <BR> remote_addr_.set_port_number(port); <BR> } <BR> <BR><FONT COLOR="#FF0000">//Accept data from the remote host using the datgram component local_</FONT> <BR>int accept_data(){ <BR> if(local_.recv(data_buf,DATA_BUFFER_SIZE,remote_addr_)!=-1){ <BR> ACE_DEBUG((LM_DEBUG, "Data received from remote server %s <BR> was: %s \n" ,remote_addr_.get_host_name(), data_buf)); <BR> return 0; <BR> } <BR> else <BR> return -1; <BR> } <P><FONT COLOR="#FF0000">//Send data to the remote. Once data has been sent wait for a reply from</FONT> <BR><FONT COLOR="#FF0000">//the server.</FONT> <BR>int send_data(){ <BR> ACE_DEBUG((LM_DEBUG,"Preparing to send data to server %s:%d\n", <BR> remote_addr_.get_host_name(),remote_addr_.get_port_number())); <BR> ACE_OS::strcpy(data_buf,"Client says hello"); <BR> <BR> while(local_.send <BR> (data_buf,ACE_OS::strlen(data_buf)+1,remote_addr_)!=-1){ <BR> ACE_OS::sleep(1); <BR> if(accept_data()==-1) <BR> break; <BR> } <BR> return -1; <BR> } <P>private: <BR> char *data_buf; <BR> ACE_INET_Addr remote_addr_; <BR> ACE_INET_Addr local_addr_; <BR> ACE_SOCK_Dgram local_; <BR>}; <P>int main(int argc, char *argv[]){ <BR>if(argc<3){ <BR> ACE_OS::printf("Usage: Client hostname port_number \n"); <BR> ACE_OS::exit(1); <BR> } <BR>Client client(argv[1],ACE_OS::atoi(argv[2])); <BR>client.send_data(); <BR>return 0; <BR>} <BR> <BR> <A HREF="ex05.html">Next Example</A> </BODY> </HTML>