118 lines
4.0 KiB
C++
118 lines
4.0 KiB
C++
/*
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Adept MobileRobots Robotics Interface for Applications (ARIA)
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Copyright (C) 2004, 2005 ActivMedia Robotics LLC
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Copyright (C) 2006, 2007, 2008, 2009, 2010 MobileRobots Inc.
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Copyright (C) 2011, 2012, 2013 Adept Technology
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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If you wish to redistribute ARIA under different terms, contact
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Adept MobileRobots for information about a commercial version of ARIA at
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robots@mobilerobots.com or
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Adept MobileRobots, 10 Columbia Drive, Amherst, NH 03031; +1-603-881-7960
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*/
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#include "Aria.h"
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/** @example socketClientExample.cpp ArSocket example client program
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*
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*
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This is an example to show how to use ArSocket to create a client and
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a server. This is the client program. The server is
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socketServerExample.cpp.
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This connects to a server on the host 'localhost' on port 7777. It waits for the server
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to say hello, then it says hello in reponse. It then closes the socket and
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exits.
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First run the server program socketServerExample. Then run
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this client program on the same computer, perhaps in a different
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terminal window. You should see the server accept the connection,
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send its greeting to this client program, and see this client
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respond with its greeting text to the server.
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@see ArSocket
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@see socketServerExample.cpp
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Also see the ArNetworking library for a more complete
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networking framework.
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*/
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int main()
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{
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// The string to send to the server.
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const char *strToSend="Hello Server";
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// The buffer in which to recieve the hello from the server
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char buff[100];
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// The size of the string the server sent
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size_t strSize;
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// The socket object
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ArSocket sock;
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// Initialize Aria. It is especially important to do
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// this on Windows, because it will initialize Window's
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// sockets system.
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Aria::init();
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// Connect to the server
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ArLog::log(ArLog::Normal, "socketClientExample: Connecting to localhost TCP port 7777...");
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if (sock.connect("localhost", 7777, ArSocket::TCP))
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ArLog::log(ArLog::Normal, "socketClientExample: Connected to server at localhost TCP port 7777.");
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else
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{
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ArLog::log(ArLog::Terse, "socketClientExample: Error connecting to server at localhost TCP port 7777: %s", sock.getErrorStr().c_str());
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return(-1);
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}
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// Read data from the socket. read() will block until
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// data is received.
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strSize=sock.read(buff, sizeof(buff));
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// If the amount read is 0 or less, its an error condition.
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if (strSize > 0)
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{
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buff[strSize]='\0'; // Terminate the string with a NULL character:
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ArLog::log(ArLog::Normal, "socketClientExample: Server said: \"%s\"", buff);
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}
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else
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{
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ArLog::log(ArLog::Terse, "socketClientExample: Error in waiting/reading from the server.");
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Aria::exit(-1);
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return(-1);
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}
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// Send the string 'Hello Server' to the server. write() should
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// return the same number of bytes that we told it to write. Otherwise,
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// its an error condition.
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if (sock.write(strToSend, strlen(strToSend)) == strlen(strToSend))
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ArLog::log(ArLog::Normal, "socketClientExample: Said hello to the server.");
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else
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{
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ArLog::log(ArLog::Terse, "socketClientExample: Error sending hello string to the server.");
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Aria::exit(-1);
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return(-1);
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}
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// Now close the connection to the server
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sock.close();
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ArLog::log(ArLog::Normal, "socketClientExample: Socket to server closed.");
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// Uninitialize Aria and exit
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Aria::exit(0);
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return(0);
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}
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