209 lines
6.4 KiB
C++
209 lines
6.4 KiB
C++
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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Module: FGfdmSocket.cpp
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Author: Jon S. Berndt
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Date started: 11/08/99
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Purpose: Encapsulates a socket
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Called by: FGOutput, et. al.
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------------- Copyright (C) 1999 Jon S. Berndt (jsb@hal-pc.org) -------------
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place - Suite 330, Boston, MA 02111-1307, USA.
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Further information about the GNU General Public License can also be found on
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the world wide web at http://www.gnu.org.
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FUNCTIONAL DESCRIPTION
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--------------------------------------------------------------------------------
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This class excapsulates a socket for simple data writing
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HISTORY
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--------------------------------------------------------------------------------
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11/08/99 JSB Created
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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INCLUDES
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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#include "FGfdmSocket.h"
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namespace JSBSim {
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static const char *IdSrc = "$Id$";
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static const char *IdHdr = ID_FDMSOCKET;
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/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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CLASS IMPLEMENTATION
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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FGfdmSocket::FGfdmSocket(string address, int port)
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{
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size = 0;
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connected = false;
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#if defined(__BORLANDC__) || defined(_MSC_VER) || defined(__MINGW32__)
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WSADATA wsaData;
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int wsaReturnCode;
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wsaReturnCode = WSAStartup(MAKEWORD(1,1), &wsaData);
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if (wsaReturnCode == 0) cout << "Winsock DLL loaded ..." << endl;
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else cout << "Winsock DLL not initialized ..." << endl;
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#endif
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if (address.find_first_not_of("0123456789.",0) != address.npos) {
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if ((host = gethostbyname(address.c_str())) == NULL) {
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cout << "Could not get host net address by name..." << endl;
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}
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} else {
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if ((host = gethostbyaddr(address.c_str(), address.size(), PF_INET)) == NULL) {
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cout << "Could not get host net address by number..." << endl;
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}
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}
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if (host != NULL) {
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cout << "Got host net address..." << endl;
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sckt = socket(AF_INET, SOCK_STREAM, 0);
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if (sckt >= 0) { // successful
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memset(&scktName, 0, sizeof(struct sockaddr_in));
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scktName.sin_family = AF_INET;
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scktName.sin_port = htons(port);
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memcpy(&scktName.sin_addr, host->h_addr_list[0], host->h_length);
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int len = sizeof(struct sockaddr_in);
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if (connect(sckt, (struct sockaddr*)&scktName, len) == 0) { // successful
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cout << "Successfully connected to socket ..." << endl;
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connected = true;
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} else { // unsuccessful
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cout << "Could not connect to socket ..." << endl;
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}
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} else { // unsuccessful
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cout << "Could not create socket for FDM, error = " << errno << endl;
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}
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}
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Debug(0);
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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FGfdmSocket::~FGfdmSocket()
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{
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#ifndef macintosh
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if (sckt) shutdown(sckt,2);
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#endif
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#ifdef __BORLANDC__
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WSACleanup();
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#endif
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Debug(1);
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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void FGfdmSocket::Clear(void)
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{
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buffer = "";
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size = 0;
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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void FGfdmSocket::Append(const char* item)
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{
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if (size == 0) buffer += string(item);
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else buffer += string(",") + string(item);
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size++;
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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void FGfdmSocket::Append(double item)
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{
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char s[25];
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sprintf(s,"%12.7f",item);
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if (size == 0) buffer += string(s);
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else buffer += string(",") + string(s);
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size++;
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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void FGfdmSocket::Append(long item)
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{
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char s[25];
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sprintf(s,"%12ld",item);
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if (size == 0) buffer += string(s);
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else buffer += string(",") + string(s);
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size++;
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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void FGfdmSocket::Send(void)
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{
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buffer += string("\n");
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if ((send(sckt,buffer.c_str(),buffer.size(),0)) <= 0) {
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perror("send");
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} else {
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}
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}
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//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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// The bitmasked value choices are as follows:
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// unset: In this case (the default) JSBSim would only print
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// out the normally expected messages, essentially echoing
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// the config files as they are read. If the environment
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// variable is not set, debug_lvl is set to 1 internally
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// 0: This requests JSBSim not to output any messages
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// whatsoever.
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// 1: This value explicity requests the normal JSBSim
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// startup messages
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// 2: This value asks for a message to be printed out when
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// a class is instantiated
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// 4: When this value is set, a message is displayed when a
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// FGModel object executes its Run() method
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// 8: When this value is set, various runtime state variables
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// are printed out periodically
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// 16: When set various parameters are sanity checked and
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// a message is printed out when they go out of bounds
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void FGfdmSocket::Debug(int from)
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{
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if (debug_lvl <= 0) return;
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if (debug_lvl & 1) { // Standard console startup message output
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if (from == 0) { // Constructor
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}
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}
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if (debug_lvl & 2 ) { // Instantiation/Destruction notification
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if (from == 0) cout << "Instantiated: FGfdmSocket" << endl;
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if (from == 1) cout << "Destroyed: FGfdmSocket" << endl;
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}
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if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects
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}
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if (debug_lvl & 8 ) { // Runtime state variables
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}
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if (debug_lvl & 16) { // Sanity checking
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}
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if (debug_lvl & 64) {
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if (from == 0) { // Constructor
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cout << IdSrc << endl;
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cout << IdHdr << endl;
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}
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}
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}
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}
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