1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 Purpose: Manage output of sim parameters to file or stdout
9 ------------- Copyright (C) 1999 Jon S. Berndt (jon@jsbsim.org) -------------
11 This program is free software; you can redistribute it and/or modify it under
12 the terms of the GNU Lesser General Public License as published by the Free Software
13 Foundation; either version 2 of the License, or (at your option) any later
16 This program is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
21 You should have received a copy of the GNU Lesser General Public License along with
22 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
23 Place - Suite 330, Boston, MA 02111-1307, USA.
25 Further information about the GNU Lesser General Public License can also be found on
26 the world wide web at http://www.gnu.org.
28 FUNCTIONAL DESCRIPTION
29 --------------------------------------------------------------------------------
30 This is the place where you create output routines to dump data for perusal
34 --------------------------------------------------------------------------------
37 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
39 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
43 #include "FGFDMExec.h"
50 static const char *IdSrc = "$Id$";
51 static const char *IdHdr = ID_INPUT;
53 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
55 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
57 FGInput::FGInput(FGFDMExec* fdmex) : FGModel(fdmex)
60 sFirstPass = dFirstPass = true;
68 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
76 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
78 bool FGInput::InitModel(void)
80 if (!FGModel::InitModel()) return false;
85 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
87 // This function handles accepting input commands from the socket interface.
90 bool FGInput::Run(void)
92 string line, token, info_string;
93 size_t start=0, string_start=0, string_end=0;
96 FGPropertyManager* node=0;
98 if (FGModel::Run()) return true; // fast exit if nothing to do
99 if (port == 0) return false; // Do nothing here if port not defined
100 // return false if no error
101 // This model DOES execute if "Exec->Holding"
103 data = socket->Receive(); // get socket transmission if present
105 if (data.size() > 0) {
108 string_start = data.find_first_not_of("\r\n", start);
109 if (string_start == string::npos) break;
110 string_end = data.find_first_of("\r\n", string_start);
111 if (string_end == string::npos) break;
112 line = data.substr(string_start, string_end-string_start);
113 if (line.size() == 0) break;
115 // now parse individual line
116 vector <string> tokens = split(line,' ');
118 string command="", argument="", str_value="";
119 if (tokens.size() > 0) {
120 command = to_lower(tokens[0]);
121 if (tokens.size() > 1) {
122 argument = trim(tokens[1]);
123 if (tokens.size() > 2) {
124 str_value = trim(tokens[2]);
129 if (command == "set") { // SET PROPERTY
131 node = PropertyManager->GetNode(argument);
133 socket->Reply("Unknown property\n");
135 value = atof(str_value.c_str());
136 node->setDoubleValue(value);
140 } else if (command == "get") { // GET PROPERTY
142 if (argument.size() == 0) {
143 socket->Reply("No property argument supplied.\n");
147 node = PropertyManager->GetNode(argument);
149 socket->Reply("Badly formed property query\n");
153 if (FDMExec->Holding()) { // if holding can query property list
154 string query = FDMExec->QueryPropertyCatalog(argument);
155 socket->Reply(query);
157 socket->Reply("Must be in HOLD to search properties\n");
159 } else if (node > 0) {
160 sprintf(buf, "%s = %12.6f\n", argument.c_str(), node->getDoubleValue());
164 } else if (command == "hold") { // PAUSE
169 } else if (command == "resume") { // RESUME
174 } else if (command == "quit") { // QUIT
176 // close the socket connection
180 } else if (command == "info") { // INFO
182 // get info about the sim run and/or aircraft, etc.
183 sprintf(buf, "%8.3f", State->Getsim_time());
184 info_string = "JSBSim version: " + JSBSim_version + "\n";
185 info_string += "Config File version: " + needed_cfg_version + "\n";
186 info_string += "Aircraft simulated: " + Aircraft->GetAircraftName() + "\n";
187 info_string += "Simulation time: " + string(buf) + "\n";
188 socket->Reply(info_string);
190 } else if (command == "help") { // HELP
193 " JSBSim Server commands:\n\n"
194 " get {property name}\n"
195 " set {property name} {value}\n"
203 socket->Reply(string("Unknown command: ") + token + string("\n"));
213 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
215 bool FGInput::Load(Element* element)
217 string type="", parameter="";
218 string name="", fname="";
221 // if the input has already been set up, print a warning message and return
223 cerr << "An input port has already been assigned for this run" << endl;
227 port = int(element->GetAttributeValueAsNumber("port"));
229 cerr << endl << "No port assigned in input element" << endl;
231 socket = new FGfdmSocket(port);
239 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
240 // The bitmasked value choices are as follows:
241 // unset: In this case (the default) JSBSim would only print
242 // out the normally expected messages, essentially echoing
243 // the config files as they are read. If the environment
244 // variable is not set, debug_lvl is set to 1 internally
245 // 0: This requests JSBSim not to output any messages
247 // 1: This value explicity requests the normal JSBSim
249 // 2: This value asks for a message to be printed out when
250 // a class is instantiated
251 // 4: When this value is set, a message is displayed when a
252 // FGModel object executes its Run() method
253 // 8: When this value is set, various runtime state variables
254 // are printed out periodically
255 // 16: When set various parameters are sanity checked and
256 // a message is printed out when they go out of bounds
258 void FGInput::Debug(int from)
262 if (debug_lvl <= 0) return;
264 if (debug_lvl & 1) { // Standard console startup message output
265 if (from == 0) { // Constructor
270 if (debug_lvl & 2 ) { // Instantiation/Destruction notification
271 if (from == 0) cout << "Instantiated: FGInput" << endl;
272 if (from == 1) cout << "Destroyed: FGInput" << endl;
274 if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects
276 if (debug_lvl & 8 ) { // Runtime state variables
278 if (debug_lvl & 16) { // Sanity checking
280 if (debug_lvl & 64) {
281 if (from == 0) { // Constructor
282 cout << IdSrc << endl;
283 cout << IdHdr << endl;