Version 4.2.1

src/TcpServer.cpp

@@ -0,0 +1,95 @@
+/***************************************************/
+/*! \class TcpServer
+    \brief STK TCP socket server class.
+
+    This class provides a uniform cross-platform TCP socket server
+    interface.  Methods are provided for reading or writing data
+    buffers to/from connections.
+
+    TCP sockets are reliable and connection-oriented.  A TCP socket
+    server must accept a connection from a TCP client before data can
+    be sent or received.  Data delivery is guaranteed in order,
+    without loss, error, or duplication.  That said, TCP transmissions
+    tend to be slower than those using the UDP protocol and data sent
+    with multiple \e write() calls can be arbitrarily combined by the
+    underlying system.
+
+    The user is responsible for checking the values
+    returned by the read/write methods.  Values
+    less than or equal to zero indicate a closed
+    or lost connection or the occurence of an error.
+
+    by Perry R. Cook and Gary P. Scavone, 1995 - 2005.
+*/
+/***************************************************/
+
+#include "TcpServer.h"
+
+TcpServer :: TcpServer( int port )
+{
+  // Create a socket server.
+#if defined(__OS_WINDOWS__)  // windoze-only stuff
+  WSADATA wsaData;
+  WORD wVersionRequested = MAKEWORD(1,1);
+
+  WSAStartup(wVersionRequested, &wsaData);
+  if (wsaData.wVersion != wVersionRequested) {
+    errorString_ << "TcpServer: Incompatible Windows socket library version!";
+    handleError( StkError::PROCESS_SOCKET );
+  }
+#endif
+
+  // Create the server-side socket
+  soket_ = ::socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+  if (soket_ < 0) {
+    errorString_ << "TcpServer: Couldn't create socket server!";
+    handleError( StkError::PROCESS_SOCKET );
+  }
+
+  int flag = 1;
+  int result = setsockopt( soket_, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int) );
+  if (result < 0) {
+    errorString_ << "TcpServer: Error setting socket options!";
+    handleError( StkError::PROCESS_SOCKET );
+  }
+
+  struct sockaddr_in address;
+  address.sin_family = AF_INET;
+  address.sin_addr.s_addr = INADDR_ANY;
+  address.sin_port = htons( port );
+
+  // Bind socket to the appropriate port and interface (INADDR_ANY)
+  if ( bind( soket_, (struct sockaddr *)&address, sizeof(address) ) < 0 ) {
+    errorString_ << "TcpServer: Couldn't bind socket!";
+    handleError( StkError::PROCESS_SOCKET );
+  }
+
+  // Listen for incoming connection(s)
+  if ( listen( soket_, 1 ) < 0 ) {
+    errorString_ << "TcpServer: Couldn't start server listening!";
+    handleError( StkError::PROCESS_SOCKET );
+  }
+
+  port_ = port;
+}
+
+TcpServer :: ~TcpServer()
+{
+}
+
+int TcpServer :: accept( void )
+{
+  return ::accept( soket_, NULL, NULL );
+}
+
+int TcpServer :: writeBuffer(const void *buffer, long bufferSize, int flags )
+{
+  if ( !isValid( soket_ ) ) return -1;
+  return send( soket_, (const char *)buffer, bufferSize, flags );
+}
+
+int TcpServer :: readBuffer(void *buffer, long bufferSize, int flags )
+{
+  if ( !isValid( soket_ ) ) return -1;
+  return recv( soket_, (char *)buffer, bufferSize, flags );
+}