external_libraries/oscpack/examples/SimpleReceive.cpp

   1 /*
   2     Example of two different ways to process received OSC messages using oscpack.
   3     Receives the messages from the SimpleSend.cpp example.
   4 */
   5
   6 #include <iostream>
   7
   8 #include "osc/OscReceivedElements.h"
   9 #include "osc/OscPacketListener.h"
  10 #include "ip/UdpSocket.h"
  11
  12
  13 #define PORT 7000
  14
  15 class ExamplePacketListener : public osc::OscPacketListener {
  16 protected:
  17
  18     virtual void ProcessMessage( const osc::ReceivedMessage& m,
  19                                 const IpEndpointName& remoteEndpoint )
  20     {
  21         try{
  22             // example of parsing single messages. osc::OsckPacketListener
  23             // handles the bundle traversal.
  24
  25             if( strcmp( m.AddressPattern(), "/test1" ) == 0 ){
  26                 // example #1 -- argument stream interface
  27                 osc::ReceivedMessageArgumentStream args = m.ArgumentStream();
  28                 bool a1;
  29                 osc::int32 a2;
  30                 float a3;
  31                 const char *a4;
  32                 args >> a1 >> a2 >> a3 >> a4 >> osc::EndMessage;
  33
  34                 std::cout << "received '/test1' message with arguments: "
  35                     << a1 << " " << a2 << " " << a3 << " " << a4 << "\n";
  36
  37             }else if( strcmp( m.AddressPattern(), "/test2" ) == 0 ){
  38                 // example #2 -- argument iterator interface, supports
  39                 // reflection for overloaded messages (eg you can call
  40                 // (*arg)->IsBool() to check if a bool was passed etc).
  41                 osc::ReceivedMessage::const_iterator arg = m.ArgumentsBegin();
  42                 bool a1 = (arg++)->AsBool();
  43                 int a2 = (arg++)->AsInt32();
  44                 float a3 = (arg++)->AsFloat();
  45                 const char *a4 = (arg++)->AsString();
  46                 if( arg != m.ArgumentsEnd() )
  47                     throw osc::ExcessArgumentException();
  48
  49                 std::cout << "received '/test2' message with arguments: "
  50                     << a1 << " " << a2 << " " << a3 << " " << a4 << "\n";
  51             }
  52         }catch( osc::Exception& e ){
  53             // any parsing errors such as unexpected argument types, or
  54             // missing arguments get thrown as exceptions.
  55             std::cout << "error while parsing message: "
  56                 << m.AddressPattern() << ": " << e.what() << "\n";
  57         }
  58     }
  59 };
  60
  61 int main(int argc, char* argv[])
  62 {
  63     ExamplePacketListener listener;
  64     UdpListeningReceiveSocket s(
  65             IpEndpointName( IpEndpointName::ANY_ADDRESS, PORT ),
  66             &listener );
  67
  68     std::cout << "press ctrl-c to end\n";
  69
  70     s.RunUntilSigInt();
  71
  72     return 0;
  73 }
  74