XrdClientMessage.hh

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//////////////////////////////////////////////////////////////////////////
//                                                                      //
// XrdClientMessage                                                     //
//                                                                      //
// Author: Fabrizio Furano (INFN Padova, 2004)                          //
// Adapted from TXNetFile (root.cern.ch) originally done by             //
//  Alvise Dorigo, Fabrizio Furano                                      //
//          INFN Padova, 2003                                           //
//                                                                      //
// A message coming from a physical connection. I.e. a server response  //
//  or some kind of error                                               //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

//       $Id: XrdClientMessage.hh 25932 2008-10-23 10:58:11Z ganis $

#ifndef XRC_MESSAGE_H
#define XRC_MESSAGE_H

#include "XrdClient/XrdClientProtocol.hh"
#include "XrdClient/XrdClientSock.hh"
#include "XrdSys/XrdSysPthread.hh"

#ifndef WIN32
#include <netinet/in.h>
#endif

class XrdClientPhyConnection;

class XrdClientMessage {

private:
   bool           fAllocated;
   void           *fData;
   bool           fMarshalled;
   short          fStatusCode;
   XrdSysRecMutex fMultireadMutex;

public:

   static kXR_unt16       CharStreamid2Int(kXR_char *charstreamid);
   static void            Int2CharStreamid(kXR_char *charstreamid, short intstreamid);

   enum EXrdMSCStatus {             // Some status codes useful
      kXrdMSC_ok               = 0,
      kXrdMSC_readerr          = 1,
      kXrdMSC_writeerr         = 2,
      kXrdMSC_timeout          = 3
   };

   ServerResponseHeader fHdr;

   XrdClientMessage(ServerResponseHeader header);
   XrdClientMessage();

   ~XrdClientMessage();

   bool               CreateData();

   inline int         DataLen() { return fHdr.dlen; }

   void              *DonateData();
   inline void       *GetData() {return fData;}
   inline int         GetStatusCode() { return fStatusCode; }

   inline int         HeaderStatus() { return fHdr.status; }

   inline kXR_unt16   HeaderSID() { return CharStreamid2Int(fHdr.streamid); }

   bool               IsAttn() { return (HeaderStatus() == kXR_attn); }

   inline bool        IsError() { return (fStatusCode != kXrdMSC_ok); };

   inline bool        IsMarshalled() { return fMarshalled; }
   void               Marshall();
   inline bool        MatchStreamid(short sid) { return (HeaderSID() == sid);}
   int                ReadRaw(XrdClientPhyConnection *phy);
   inline void        SetHeaderStatus(kXR_unt16 sts) { fHdr.status = sts; }
   inline void        SetMarshalled(bool m) { fMarshalled = m; }
   inline void        SetStatusCode(kXR_unt16 status) { fStatusCode = status; }
   void               Unmarshall();

};

#endif

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