Rename interpretor to interpreter.
[Faustine.git] / interpreter / preprocessor / faust-0.9.47mr3 / architecture / osclib / faust / src / nodes / RootNode.cpp
diff --git a/interpreter/preprocessor/faust-0.9.47mr3/architecture/osclib/faust/src/nodes/RootNode.cpp b/interpreter/preprocessor/faust-0.9.47mr3/architecture/osclib/faust/src/nodes/RootNode.cpp
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+/*
+
+  Copyright (C) 2011 Grame
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+  Grame Research Laboratory, 9 rue du Garet, 69001 Lyon - France
+  research@grame.fr
+
+*/
+
+#include <string>
+#include <sstream>
+
+#include "RootNode.h"
+#include "Message.h"
+#include "OSCStream.h"
+#include "OSCControler.h"
+#include "OSCIO.h"
+
+#ifdef WIN32
+# include "winsock2.h"
+#else
+# include "ip/NetworkingUtils.h"
+#endif
+
+using namespace std;
+
+namespace oscfaust
+{
+
+static const char * kHelloMsg = "hello";
+
+
+//--------------------------------------------------------------------------
+// ip address utility
+//--------------------------------------------------------------------------
+static string getHostName()
+{
+       char name[512];
+       int ret = gethostname(name, 512);
+       if (ret == -1) return "";
+       return name;
+}
+
+string getIP()
+{
+       string name = getHostName();
+       stringstream ipStr;
+       if (name.size()) {
+               unsigned long ip = GetHostByName(name.c_str());
+               ipStr   << ((ip >> 24) & 0xff) << '.'
+                               << ((ip >> 16) & 0xff) << '.'
+                               << ((ip >> 8) & 0xff) << '.'
+                               << (ip & 0xff);
+       }
+       return ipStr.str();
+}
+
+//--------------------------------------------------------------------------
+// signal data handler
+//--------------------------------------------------------------------------
+bool RootNode::acceptSignal( const Message* msg )
+{
+       bool ret = true;
+       int n = msg->size();
+       if (n) {
+               float val, * buff = new float[n];
+               for (int i = 0; i < n ; i++) {
+                       if (msg->param(i, val))                 // assumes that it receives float values only
+                               buff[i] = val;
+                       else {                                                  // in case not
+                               ret = false;                            // set return code to false
+                               break;                                          // and stops reading data
+                       }
+               }
+               if (ret) fIO->receive (n, buff);        // call the IO controler receive method with the float data
+               delete buff;
+       }
+       else ret = false;
+       return ret;
+}
+
+//--------------------------------------------------------------------------
+bool RootNode::accept( const Message* msg )
+{
+       string val;
+       // checks for the 'hello' message first
+       if ((msg->size() == 1) && (msg->param(0, val)) && (val == kHelloMsg) ) {
+               hello (msg->src());
+               return true;
+       }
+       else if (MessageDriven::accept (msg))   // next checks for standard handlers ('get' for example)
+               return true;
+       else if (fIO)                                                   // when still not handled and if a IO controler is set
+               return acceptSignal (msg);                      // try to read signal data
+       return false;
+}
+
+//--------------------------------------------------------------------------
+void RootNode::setPorts (int* in, int* out, int* err)
+{
+       fUPDIn  = in;
+       fUDPOut = out;
+       fUDPErr = err;
+}
+
+//--------------------------------------------------------------------------
+void RootNode::hello (unsigned long ipdest ) const
+{
+       if (fUPDIn && fUDPOut && fUDPErr) {                                     // on 'hello' request
+               unsigned long savedip = oscout.getAddress();    // saves the current dest IP
+               oscout.setAddress(ipdest);                                              // set the destination IP
+               // and sends its address + the udp port numbers (in, out and err)
+               oscout  << OSCStart(getOSCAddress().c_str()) << getIP() << *fUPDIn << *fUDPOut << *fUDPErr << OSCEnd();
+               oscout.setAddress(savedip);                                             // and restores the dest IP
+       }
+}
+
+} // end namespoace