library: libNetx
#include "TXNetSystem.h"

TXNetSystem

class description - header file - source file - inheritance tree (.pdf)

class TXNetSystem : public TNetSystem

Inheritance Chart:

TObject

TNamed

TSystem

TNetSystem

TXNetSystem

    private:

      virtual void* GetDirPtr() const
               void InitXrdClient()
               void SaveEndPointUrl()

    public:

                          TXNetSystem(Bool_t owner = kTRUE)
                          TXNetSystem(const char* url, Bool_t owner = kTRUE)
                          TXNetSystem(const TXNetSystem&)
                  virtual ~TXNetSystem()
           virtual Bool_t AccessPathName(const char* path, EAccessMode mode)
           static TClass* Class()
           virtual Bool_t ConsistentWith(const char* path, void* dirptr)
             virtual void FreeDirectory(void* dirp)
      virtual const char* GetDirEntry(void* dirp)
            virtual Int_t GetPathInfo(const char* path, FileStat_t& buf)
          virtual TClass* IsA() const
            virtual Int_t MakeDirectory(const char* dir)
            virtual void* OpenDirectory(const char* dir)
             virtual void ShowMembers(TMemberInspector& insp, char* parent)
             virtual void Streamer(TBuffer& b)
                     void StreamerNVirtual(TBuffer& b)

Data Members

    private:

                    XrdClientAdmin* fClientAdmin   Handle to the client admin object
                             Bool_t fIsRootd       Nature of remote file server
                             Bool_t fIsXRootd      Nature of remote file server
                            TString fDir           Current directory
                              void* fDirp          Directory pointer
      XrdClientVector<XrdOucString> fDirList       Buffer for directory content
                             Bool_t fDirListValid  fDirList content valid ?
                      static Bool_t fgInitDone     Avoid initializing more than once
                      static Bool_t fgRootdBC      Control rootd backward compatibility

Class Description

                                                                      
 TXNetSystem                                                          
                                                                      
 Authors: Frank Winklmeier,  Fabrizio Furano                          
          INFN Padova, 2005                                           
                                                                      
 TXNetSystem is an extension of TNetSystem able to deal with new      
 xrootd servers. The class detects the nature of the server and       
 redirects the calls to TNetSystem in case of a rootd server.

TXNetSystem(Bool_t owner)

 Create system management class without connecting to server.

TXNetSystem(const char *url, Bool_t owner)

 Create system management class and connect to server specified by url.

~TXNetSystem()

 Destructor

void InitXrdClient()

 One-time initialization of some communication variables for xrootd protocol

void SaveEndPointUrl()

 Save the end-point user, host, port

void* OpenDirectory(const char* dir)

 Open a directory. Returns a non-zero pointer (with no special
 purpose) in case of success, 0 in case of error.

void FreeDirectory(void *dirp)

 Free(Close) the directory referenced by dirp

Int_t MakeDirectory(const char* dir)

 Create a directory. Return 0 on success, -1 otherwise.

const char* GetDirEntry(void *dirp)

 Get directory entry for directory referenced by dirp.
 Returns 0 in case there are no more entries.

Int_t GetPathInfo(const char* path, FileStat_t &buf)

 Get info about a file. Info is returned in the form of a FileStat_t
 structure (see TSystem.h).
 The function returns 0 in case of success and 1 if the file could
 not be stat'ed.
 NOTICE: Not all information is available with an xrootd server.

Bool_t ConsistentWith(const char *path, void *dirptr)

 Check consistency of this helper with the one required
 by 'path' or 'dirptr'.

Bool_t AccessPathName(const char *path, EAccessMode mode)

 Returns FALSE if one can access a file using the specified access mode.
 NB: for the time being mode is ignored for XROOTD (just checks existence
 of the file or directory).
 Mode is the same as for the Unix access(2) function.
 Attention, bizarre convention of return value!!

TXNetSystem(Bool_t owner = kTRUE)

Author: Frank Winklmeier, Fabrizio Furano
Last update: root/netx:$Name: $:$Id: TXNetSystem.cxx,v 1.12 2006/06/30 14:36:02 rdm Exp $
Copyright (C) 1995-2005, Rene Brun and Fons Rademakers. *

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