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InetWvIn.h
1 #ifndef STK_INETWVIN_H
2 #define STK_INETWVIN_H
3 
4 #include "WvIn.h"
5 #include "TcpServer.h"
6 #include "UdpSocket.h"
7 #include "Thread.h"
8 #include "Mutex.h"
9 
10 namespace stk {
11 
12 /***************************************************/
36 /***************************************************/
37 
38 typedef struct {
39  bool finished;
40  void *object;
41 } ThreadInfo;
42 
43 class InetWvIn : public WvIn
44 {
45 public:
47 
50  InetWvIn( unsigned long bufferFrames = 1024, unsigned int nBuffers = 8 );
51 
53  ~InetWvIn();
54 
56 
63  void listen( int port = 2006, unsigned int nChannels = 1,
64  Stk::StkFormat format = STK_SINT16,
65  Socket::ProtocolType protocol = Socket::PROTO_TCP );
66 
68 
72  bool isConnected( void );
73 
75 
84  StkFloat lastOut( unsigned int channel = 0 );
85 
87 
97  StkFloat tick( unsigned int channel = 0 );
98 
100 
110  StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );
111 
112  // Called by the thread routine to receive data via the socket connection
113  // and fill the socket buffer. This is not intended for general use but
114  // must be public for access from the thread.
115  void receive( void );
116 
117 protected:
118 
119  // Read buffered socket data into the data buffer ... will block if none available.
120  int readData( void );
121 
122  Socket *soket_;
123  Thread thread_;
124  Mutex mutex_;
125  char *buffer_;
126  unsigned long bufferFrames_;
127  unsigned long bufferBytes_;
128  unsigned long bytesFilled_;
129  unsigned int nBuffers_;
130  unsigned long writePoint_;
131  unsigned long readPoint_;
132  long bufferCounter_;
133  int dataBytes_;
134  bool connected_;
135  int fd_;
136  ThreadInfo threadInfo_;
137  Stk::StkFormat dataType_;
138 
139 };
140 
141 inline StkFloat InetWvIn :: lastOut( unsigned int channel )
142 {
143 #if defined(_STK_DEBUG_)
144  if ( channel >= data_.channels() ) {
145  oStream_ << "InetWvIn::lastOut(): channel argument and data stream are incompatible!";
146  handleError( StkError::FUNCTION_ARGUMENT );
147  }
148 #endif
149 
150  // If no connection and we've output all samples in the queue, return.
151  if ( !connected_ && bytesFilled_ == 0 && bufferCounter_ == 0 ) return 0.0;
152 
153  return lastFrame_[channel];
154 }
155 
156 } // stk namespace
157 
158 #endif

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