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+//####COPYRIGHTBEGIN####
+//                                                                          
+// ----------------------------------------------------------------------------
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
+//
+// This program is part of the eCos host tools.
+//
+// This program is free software; you can redistribute it and/or modify it 
+// under the terms of the GNU General Public License as published by the Free 
+// Software Foundation; either version 2 of the License, or (at your option) 
+// any later version.
+// 
+// This program 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 General Public License for 
+// more details.
+// 
+// You should have received a copy of the GNU General Public License along with
+// this program; if not, write to the Free Software Foundation, Inc., 
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+//
+// ----------------------------------------------------------------------------
+//                                                                          
+//####COPYRIGHTEND####
+//=================================================================
+//
+//        eCosSocket.h
+//
+//        Socket test class
+//
+//=================================================================
+//=================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):     sdf
+// Contributors:  sdf
+// Date:          1999-04-01
+// Description:   This class abstracts tcp/ip sockets for use in the testing infrastructure
+// Usage:
+//
+//####DESCRIPTIONEND####
+//=================================================================
+// This class is a host-independent interface to a TCP/IP socket
+// There are two flavours of socket - server and client.
+// Server sockets listen (accept) on a socket number.  Client sockets connect to a host:port.
+// The class can be used thus:
+//   Server:
+//      CeCosSocket sock; // no-argument ctor
+//      if(-1!=sock.Listen(6000)){
+//        ...      
+//      }
+//   Client:
+//      CeCosSocket sock;
+//      if(sock.Connect(_T("ginga"),5000)){
+//        ...      
+//      }
+// In each of the above cases the socket is closed automatically by the dtor.
+//
+// Alternatively, the ctor can be used directly:
+//   Server:
+//      CeCosSocket sock(6000));
+//      ...      
+//   Client:
+//      CeCosSocket sock(_T("ginga"),5000));
+//      ...      
+//
+//=================================================================
+#include "eCosStd.h"
+#include "Collections.h"
+
+#ifndef _SOCKETUTILS_H
+#define _SOCKETUTILS_H
+
+class CeCosSerial;
+
+class CeCosSocket {
+public:	
+	static const String GetHostByName(LPCTSTR pszHost);
+
+  // These functions must be called before any other operation is carried out:
+	static bool Init();
+	static void Term();
+
+  typedef bool (CALLBACK FilterFunc)(void *&,unsigned int &,CeCosSerial&,CeCosSocket &,void *);
+
+  // A function that causes an operation to stop - i.e. it when it returns true the operation is aborted.
+  typedef bool (CALLBACK StopFunc)(void *);
+  
+  enum {NOTIMEOUT=0x7fffffff-1,DEFAULTTIMEOUT=-2}; // No explicit timeout specified
+  
+  // Listen and this form of constructor used to act as server
+  static int Listen(int nTcpPort);
+  CeCosSocket (); // Caller promises to call Accept() or Connect() later
+  
+  // Accept-like ctor (act as server)
+  CeCosSocket (int sock /*result of previous call of Listen*/, bool *pbStop=0);
+  // Connect-like ctor (act as client)
+  CeCosSocket (LPCTSTR pszHostPort,Duration dTimeout=NOTIMEOUT);
+  
+  bool Accept(int sock /*result of previous call of Listen*/, bool *pbStop=0);
+  // This form of constructor used to act as client
+  bool Connect(LPCTSTR pszHostPort,Duration dTimeout=NOTIMEOUT);
+  ~CeCosSocket();
+  
+  int Client() const { return m_nClient; }
+  static String ClientName(int nClient);
+  
+  int Sock() const { return m_nSock; }
+  
+  // Set the default timeout for all operations
+  void SetTimeout (Duration dTimeout) { m_nDefaultTimeout=dTimeout; }
+  
+  // Use to test success after opening with the ctor:
+  bool Ok() { return -1!=m_nSock; }
+
+  // Close the given socket
+  bool Close () { return CloseSocket(m_nSock); }
+  
+  // Return last error on this socket
+  int SocketError() { return m_nErr; }
+
+  // Return last socket error, translated to a string
+  String SocketErrString();
+  static String SocketErrString(int nErr);
+
+  // Read and write functions
+
+  // Untyped: these versions allow the operation to be aborted either by timeout or by the "stop func" returning true.
+  bool send(const void *pData,unsigned int nLength,LPCTSTR pszMsg=_T(""),int dTimeout=DEFAULTTIMEOUT,StopFunc *pFunc=0,void *pParam=0){
+    return sendrecv(true,pData,nLength,pszMsg,dTimeout,pFunc,pParam);
+  }
+  bool recv(const void *pData,unsigned int nLength,LPCTSTR pszMsg=_T(""),int dTimeout=DEFAULTTIMEOUT,StopFunc *pFunc=0,void *pParam=0){
+    return sendrecv(false,pData,nLength,pszMsg,dTimeout,pFunc,pParam);
+  }
+
+  // Read/write an integer (this can be used between machines of different endianness)
+  bool recvInteger (int &n,LPCTSTR pszMsg=_T(""),Duration dTimeout=DEFAULTTIMEOUT);
+  bool sendInteger (int n,LPCTSTR pszMsg=_T(""),Duration dTimeout=DEFAULTTIMEOUT);
+
+  // Read/write a string
+  bool recvString  (String &str,LPCTSTR pszMsg=_T(""),Duration dTimeout=DEFAULTTIMEOUT);
+  bool sendString  (const String &str,LPCTSTR pszMsg=_T(""),Duration dTimeout=DEFAULTTIMEOUT);
+  
+  static bool CloseSocket (int &sock);
+  bool Peek (unsigned int &nAvail);
+
+  // Miscellaneous helper functions:
+
+  // Combine string and integer to the form host:port:
+  static String HostPort(LPCTSTR pszHost,int nPort);
+  // Decompose (opposite of the above):
+  static bool ParseHostPort (LPCTSTR pszHostPort, String &pszHost, int &nPort);
+  // Just check for legality:
+  static bool IsLegalHostPort (LPCTSTR pszHostPort);
+  // Are these two hosts really the same?
+  static bool SameHost (LPCTSTR host1,LPCTSTR host2);
+  // Set up a connection between a serial port and a socket.  Traffic is simply passed between them.
+  static bool ConnectSocketToSerial (int nListenSock,LPCTSTR pszPort, int nBaud,FilterFunc *pSerialToSocketFilterFunc=0,void *pSerialParam=0,FilterFunc *pSocketToSerialFilterFunc=0,void *pSocketParam=0,bool *pbStop=0);
+  static bool ConnectSocketToSerial (CeCosSocket &socket,CeCosSerial &serial,FilterFunc *pSerialToSocketFilterFunc=0,void *pSerialParam=0, FilterFunc *pSocketToSerialFilterFunc=0,void *pSocketParam=0,bool *pbStop=0);
+
+  static LPCTSTR MyHostName();
+  static LPCTSTR MySimpleHostName();
+
+  // Set up a connection between two sockets.  Traffic is simply passed between them.
+  bool ConnectSocketToSocket (CeCosSocket &o,FilterFunc *pSocketToSocketFilterFunc1,FilterFunc *pSocketToSocketFilterFunc2,void *pParam,bool *pbStop);
+  
+protected:
+
+  // Blocking read on one or other of the data sources:
+  // Result:  -1 - socket error occurred
+  //           1 - data read from socket
+  //          -2 - serial error occurred
+  //           2 - data read from serial
+
+  enum   SSReadResult {SS_SOCKET_ERROR=-1,SS_SOCKET_READ=1,SS_SERIAL_ERROR=-2,SS_SERIAL_READ=2,SS_STOPPED=0};
+  static SSReadResult SSRead (CeCosSerial &serial,CeCosSocket &socket,void *pBuf,unsigned int nSize,unsigned int &nRead,bool *pbStop);
+  
+  Duration m_nDefaultTimeout;
+  Duration TimeoutDuration (Duration dTimeout);
+  // Set appropriate socket options (most importantly, non-blocking mode)
+  bool SetSocketOptions ();
+  int m_nSock;
+  int m_nClient;
+  int m_nErr;
+  void SaveError() { 
+#ifdef _WIN32
+  m_nErr=WSAGetLastError();
+#else // UNIX
+  m_nErr=errno;
+#endif
+  }
+  bool sendrecv(bool bSend,const void *pData,unsigned int nLength,LPCTSTR pszMsg=_T(""),int dTimeout=DEFAULTTIMEOUT,StopFunc *pFunc=0,void *pParam=0);
+  
+};
+#endif