ROOT » NET » NETX » TXNetSystem

class TXNetSystem: public TNetSystem


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.

Function Members (Methods)

virtual voidTSystem::Abort(int code = 0)
voidTObject::AbstractMethod(const char* method) const
virtual intTSystem::AcceptConnection(int sock)
virtual Bool_tAccessPathName(const char* path, EAccessMode mode)
virtual voidTSystem::AddDynamicPath(const char* pathname)
virtual voidTSystem::AddFileHandler(TFileHandler* fh)
virtual voidTSystem::AddIncludePath(const char* includePath)
virtual voidTSystem::AddLinkedLibs(const char* linkedLib)
virtual voidTSystem::AddSignalHandler(TSignalHandler* sh)
virtual voidTSystem::AddStdExceptionHandler(TStdExceptionHandler* eh)
virtual voidTSystem::AddTimer(TTimer* t)
virtual intTSystem::AnnounceTcpService(int port, Bool_t reuse, int backlog, int tcpwindowsize = -1)
virtual intTSystem::AnnounceUdpService(int port, int backlog)
virtual intTSystem::AnnounceUnixService(int port, int backlog)
virtual intTSystem::AnnounceUnixService(const char* sockpath, int backlog)
virtual voidTObject::AppendPad(Option_t* option = "")
virtual const char*TSystem::BaseName(const char* pathname)
voidTSystem::Beep(Int_t freq = -1, Int_t duration = -1, Bool_t setDefault = kFALSE)
virtual voidTObject::Browse(TBrowser* b)
Bool_tTSystem::cd(const char* path)
virtual Bool_tTSystem::ChangeDirectory(const char* path)
virtual intTSystem::Chmod(const char* file, UInt_t mode)
static TClass*Class()
virtual const char*TObject::ClassName() const
virtual voidTSystem::CleanCompiledMacros()
virtual voidTNamed::Clear(Option_t* option = "")
virtual TObject*TNamed::Clone(const char* newname = "") const
virtual voidTSystem::CloseConnection(int sock, Bool_t force = kFALSE)
virtual voidTSystem::Closelog()
virtual intTSystem::ClosePipe(FILE* pipe)
virtual Int_tTNamed::Compare(const TObject* obj) const
virtual intTSystem::CompileMacro(const char* filename, Option_t* opt = "", const char* library_name = "", const char* build_dir = "", UInt_t dirmode = 0)
virtual char*TSystem::ConcatFileName(const char* dir, const char* name)
virtual Bool_tConsistentWith(const char* path, void* dirptr)
virtual voidTNamed::Copy(TObject& named) const
virtual intTSystem::CopyFile(const char* from, const char* to, Bool_t overwrite = kFALSE)
virtual voidTObject::Delete(Option_t* option = "")MENU
virtual const char*TSystem::DirName(const char* pathname)
virtual voidTSystem::DispatchOneEvent(Bool_t pendingOnly = kFALSE)
virtual Int_tTObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual voidTObject::Draw(Option_t* option = "")
virtual voidTObject::DrawClass() constMENU
virtual TObject*TObject::DrawClone(Option_t* option = "") constMENU
virtual voidTObject::Dump() constMENU
char*TSystem::DynamicPathName(const char* lib, Bool_t quiet = kFALSE)
virtual Func_tTSystem::DynFindSymbol(const char* module, const char* entry)
virtual voidTObject::Error(const char* method, const char* msgfmt) const
virtual Int_tTSystem::Exec(const char* shellcmd)
virtual voidTObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual voidTObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual voidTObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual voidTSystem::Exit(int code, Bool_t mode = kTRUE)
virtual voidTSystem::ExitLoop()
virtual Bool_tTSystem::ExpandPathName(TString& path)
virtual char*TSystem::ExpandPathName(const char* path)
virtual voidTObject::Fatal(const char* method, const char* msgfmt) const
virtual voidTNamed::FillBuffer(char*& buffer)
virtual const char*TSystem::FindDynamicLibrary(TString& lib, Bool_t quiet = kFALSE)
virtual const char*TSystem::FindFile(const char* search, TString& file, EAccessMode mode = kFileExists)
virtual TObject*TObject::FindObject(const char* name) const
virtual TObject*TObject::FindObject(const TObject* obj) const
virtual voidFreeDirectory(void* dirp)
virtual TSystem::EAclicModeTSystem::GetAclicMode() const
virtual Int_tTSystem::GetAclicProperties() const
voidTSystem::GetBeepDefaults(Int_t& freq, Int_t& duration) const
virtual const char*TSystem::GetBuildArch() const
virtual const char*TSystem::GetBuildCompiler() const
virtual const char*TSystem::GetBuildCompilerVersion() const
virtual const char*TSystem::GetBuildDir() const
virtual const char*TSystem::GetBuildNode() const
virtual intTSystem::GetCpuInfo(CpuInfo_t* info, Int_t sampleTime = 1000) const
virtual const char*GetDirEntry(void* dirp)
virtual Option_t*TObject::GetDrawOption() const
static Long_tTObject::GetDtorOnly()
virtual const char*TSystem::GetDynamicPath()
virtual Int_tTSystem::GetEffectiveGid()
virtual Int_tTSystem::GetEffectiveUid()
virtual const char*TSystem::Getenv(const char* env)
static Int_tTSystem::GetErrno()
virtual const char*TSystem::GetError()
const char*TSystem::GetErrorStr() const
virtual const char*TSystem::GetFlagsDebug() const
virtual const char*TSystem::GetFlagsOpt() const
virtual Int_tTSystem::GetFPEMask()
virtual TStringTSystem::GetFromPipe(const char* command)
virtual intTSystem::GetFsInfo(const char* path, Long_t* id, Long_t* bsize, Long_t* blocks, Long_t* bfree)
virtual Int_tTSystem::GetGid(const char* group = 0)
virtual UserGroup_t*TSystem::GetGroupInfo(Int_t gid)
virtual UserGroup_t*TSystem::GetGroupInfo(const char* group = 0)
virtual TInetAddressTSystem::GetHostByName(const char* server)
virtual const char*TObject::GetIconName() const
virtual const char*TSystem::GetIncludePath()
virtual const char*TSystem::GetLibraries(const char* regexp = "", const char* option = "", Bool_t isRegexp = kTRUE)
virtual const char*TSystem::GetLinkdefSuffix() const
virtual const char*TSystem::GetLinkedLibs() const
virtual TSeqCollection*TSystem::GetListOfFileHandlers() const
virtual TSeqCollection*TSystem::GetListOfSignalHandlers() const
virtual TSeqCollection*TSystem::GetListOfStdExceptionHandlers() const
virtual TSeqCollection*TSystem::GetListOfTimers() const
virtual const char*TSystem::GetMakeExe() const
virtual const char*TSystem::GetMakeSharedLib() const
virtual intTSystem::GetMemInfo(MemInfo_t* info) const
virtual const char*TNamed::GetName() const
virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_tTObject::GetObjectStat()
virtual const char*TSystem::GetObjExt() const
virtual Option_t*TObject::GetOption() const
virtual Int_tGetPathInfo(const char* path, FileStat_t& buf)
Bool_tGetPathsInfo(const char* paths, UChar_t* info)
virtual TInetAddressTSystem::GetPeerName(int sock)
virtual intTSystem::GetPid()
virtual intTSystem::GetProcInfo(ProcInfo_t* info) const
virtual intTSystem::GetServiceByName(const char* service)
virtual char*TSystem::GetServiceByPort(int port)
virtual TInetAddressTSystem::GetSockName(int sock)
virtual intTSystem::GetSockOpt(int sock, int kind, int* val)
virtual const char*TSystem::GetSoExt() const
virtual intTSystem::GetSysInfo(SysInfo_t* info) const
virtual const char*TNamed::GetTitle() const
virtual Int_tTSystem::GetUid(const char* user = 0)
virtual UInt_tTObject::GetUniqueID() const
virtual UserGroup_t*TSystem::GetUserInfo(Int_t uid)
virtual UserGroup_t*TSystem::GetUserInfo(const char* user = 0)
virtual TList*TSystem::GetVolumes(Option_t*) const
virtual Bool_tTObject::HandleTimer(TTimer* timer)
virtual ULong_tTNamed::Hash() const
virtual const char*TSystem::HomeDirectory(const char* userName = 0)
virtual const char*TSystem::HostName()
virtual voidTSystem::IgnoreInterrupt(Bool_t ignore = kTRUE)
virtual voidTSystem::IgnoreSignal(ESignals sig, Bool_t ignore = kTRUE)
Bool_tTSystem::InControl() const
virtual voidTObject::Info(const char* method, const char* msgfmt) const
virtual Bool_tTObject::InheritsFrom(const char* classname) const
virtual Bool_tTObject::InheritsFrom(const TClass* cl) const
virtual Bool_tTSystem::Init()
virtual voidTSystem::InnerLoop()
virtual voidTObject::Inspect() constMENU
voidTObject::InvertBit(UInt_t f)
virtual TClass*IsA() const
virtual Bool_tTSystem::IsAbsoluteFileName(const char* dir)
virtual Bool_tTObject::IsEqual(const TObject* obj) const
virtual Bool_tTSystem::IsFileInIncludePath(const char* name, char** fullpath = 0)
virtual Bool_tTObject::IsFolder() const
Bool_tTObject::IsOnHeap() const
Bool_tIsOnline(const char* path)
virtual Bool_tIsPathLocal(const char* path)
virtual Bool_tTNamed::IsSortable() const
Bool_tTObject::IsZombie() const
virtual intTSystem::Link(const char* from, const char* to)
virtual voidTSystem::ListLibraries(const char* regexp = "")
virtual voidTSystem::ListSymbols(const char* module, const char* re = "")
virtual intTSystem::Load(const char* module, const char* entry = "", Bool_t system = kFALSE)
virtual Int_tLocate(const char* path, TString& endurl)
virtual voidTNamed::ls(Option_t* option = "") const
virtual Int_tMakeDirectory(const char* dir)
voidTObject::MayNotUse(const char* method) const
virtual intTSystem::mkdir(const char* name, Bool_t recursive = kFALSE)
virtual Long_tTSystem::NextTimeOut(Bool_t mode)
virtual Bool_tTObject::Notify()
virtual voidTSystem::NotifyApplicationCreated()
virtual TTimeTSystem::Now()
voidTObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
virtual intTSystem::OpenConnection(const char* server, int port, int tcpwindowsize = -1, const char* protocol = "tcp")
virtual void*OpenDirectory(const char* dir)
virtual voidTSystem::Openlog(const char* name, Int_t options, ELogFacility facility)
virtual FILE*TSystem::OpenPipe(const char* command, const char* mode)
voidTObject::operator delete(void* ptr)
voidTObject::operator delete(void* ptr, void* vp)
voidTObject::operator delete[](void* ptr)
voidTObject::operator delete[](void* ptr, void* vp)
void*TObject::operator new(size_t sz)
void*TObject::operator new(size_t sz, void* vp)
void*TObject::operator new[](size_t sz)
void*TObject::operator new[](size_t sz, void* vp)
TXNetSystem&operator=(const TXNetSystem&)
virtual voidTObject::Paint(Option_t* option = "")
virtual voidTObject::Pop()
Bool_tPrepare(const char* path, UChar_t opt = 8, UChar_t prio = 0)
Int_tPrepare(TCollection* paths, UChar_t opt = 8, UChar_t prio = 0, TString* buf = 0)
virtual const char*TSystem::PrependPathName(const char* dir, TString& name)
virtual voidTNamed::Print(Option_t* option = "") const
virtual Bool_tTSystem::ProcessEvents()
const char*TSystem::pwd()
virtual Int_tTObject::Read(const char* name)
virtual voidTObject::RecursiveRemove(TObject* obj)
virtual intTSystem::RecvBuf(int sock, void* buffer, int length)
virtual intTSystem::RecvRaw(int sock, void* buffer, int length, int flag)
virtual Int_tTSystem::RedirectOutput(const char* name, const char* mode = "a", RedirectHandle_t* h = 0)
virtual TFileHandler*TSystem::RemoveFileHandler(TFileHandler* fh)
voidTSystem::RemoveOnExit(TObject* obj)
virtual TSignalHandler*TSystem::RemoveSignalHandler(TSignalHandler* sh)
virtual TStdExceptionHandler*TSystem::RemoveStdExceptionHandler(TStdExceptionHandler* eh)
virtual TTimer*TSystem::RemoveTimer(TTimer* t)
virtual intTSystem::Rename(const char* from, const char* to)
voidTObject::ResetBit(UInt_t f)
static voidTSystem::ResetErrno()
virtual voidTSystem::ResetSignal(ESignals sig, Bool_t reset = kTRUE)
virtual voidTSystem::ResetSignals()
virtual voidTSystem::ResetTimer(TTimer*)
virtual voidTSystem::Run()
virtual voidTObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual voidTObject::SavePrimitive(ostream& out, Option_t* option = "")
virtual Int_tTSystem::Select(TList* active, Long_t timeout)
virtual Int_tTSystem::Select(TFileHandler* fh, Long_t timeout)
virtual intTSystem::SendBuf(int sock, const void* buffer, int length)
virtual intTSystem::SendRaw(int sock, const void* buffer, int length, int flag)
virtual voidTSystem::SetAclicMode(TSystem::EAclicMode mode)
voidTObject::SetBit(UInt_t f)
voidTObject::SetBit(UInt_t f, Bool_t set)
virtual voidTSystem::SetBuildDir(const char* build_dir, Bool_t isflat = kFALSE)
virtual voidTSystem::SetDisplay()
virtual voidTObject::SetDrawOption(Option_t* option = "")MENU
static voidTObject::SetDtorOnly(void* obj)
virtual voidTSystem::SetDynamicPath(const char* pathname)
virtual voidTSystem::Setenv(const char* name, const char* value)
voidTSystem::SetErrorStr(const char* errstr)
virtual voidTSystem::SetFlagsDebug(const char*)
virtual voidTSystem::SetFlagsOpt(const char*)
virtual Int_tTSystem::SetFPEMask(Int_t mask = kDefaultMask)
virtual voidTSystem::SetIncludePath(const char* includePath)
virtual voidTSystem::SetLinkdefSuffix(const char* suffix)
virtual voidTSystem::SetLinkedLibs(const char* linkedLibs)
virtual voidTSystem::SetMakeExe(const char* directives)
virtual voidTSystem::SetMakeSharedLib(const char* directives)
virtual voidTNamed::SetName(const char* name)MENU
virtual voidTNamed::SetNameTitle(const char* name, const char* title)
static voidTObject::SetObjectStat(Bool_t stat)
virtual voidTSystem::SetObjExt(const char* objExt)
virtual voidTSystem::SetProgname(const char* name)
virtual intTSystem::SetSockOpt(int sock, int kind, int val)
virtual voidTSystem::SetSoExt(const char* soExt)
virtual voidTNamed::SetTitle(const char* title = "")MENU
virtual voidTObject::SetUniqueID(UInt_t uid)
virtual voidShowMembers(TMemberInspector& insp) const
virtual voidTSystem::ShowOutput(RedirectHandle_t* h)
virtual Int_tTNamed::Sizeof() const
virtual voidTSystem::Sleep(UInt_t milliSec)
virtual TStringTSystem::SplitAclicMode(const char* filename, TString& mode, TString& args, TString& io) const
virtual voidTSystem::StackTrace()
virtual voidStreamer(TBuffer&)
voidStreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
virtual intTSystem::Symlink(const char* from, const char* to)
virtual voidTObject::SysError(const char* method, const char* msgfmt) const
virtual voidTSystem::Syslog(ELogLevel level, const char* mess)
virtual const char*TSystem::TempDirectory() const
virtual FILE*TSystem::TempFileName(TString& base, const char* dir = 0)
Bool_tTObject::TestBit(UInt_t f) const
Int_tTObject::TestBits(UInt_t f) const
TXNetSystem(Bool_t owner = kTRUE)
TXNetSystem(const TXNetSystem&)
TXNetSystem(const char* url, Bool_t owner = kTRUE)
virtual intTSystem::Umask(Int_t mask)
virtual const char*TSystem::UnixPathName(const char* unixpathname)
virtual intUnlink(const char* path)
virtual voidTSystem::Unload(const char* module)
virtual voidTSystem::Unsetenv(const char* name)
virtual voidTObject::UseCurrentStyle()
virtual intTSystem::Utime(const char* file, Long_t modtime, Long_t actime)
virtual voidTObject::Warning(const char* method, const char* msgfmt) const
virtual char*TSystem::Which(const char* search, const char* file, EAccessMode mode = kFileExists)
virtual const char*TSystem::WorkingDirectory()
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const
voidTNetSystem::Create(const char* url, TSocket* sock = 0)
virtual voidTSystem::DoBeep(Int_t = -1, Int_t = -1) const
virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const
virtual const char*TSystem::ExpandFileName(const char* fname)
TSystem*TSystem::FindHelper(const char* path, void* dirptr = 0)
const TString&TSystem::GetLastErrorString() const
virtual const char*TSystem::GetLinkedLibraries()
voidTNetSystem::InitRemoteEntity(const char* url)
virtual voidTSystem::SigAlarmInterruptsSyscalls(Bool_t)
static const char*TSystem::StripOffProto(const char* path, const char* proto)
XrdClientAdmin*Connect(const char* url)
static XrdClientAdmin*GetClientAdmin(const char* url)
virtual void*GetDirPtr() const
static TStringGetKey(const char* url)

Data Members

static TObject::(anonymous)TObject::kBitMask
static TObject::EStatusBitsTObject::kCanDelete
static TObject::EStatusBitsTObject::kCannotPick
static TSystem::EAclicModeTSystem::kDebug
static TSystem::EAclicModeTSystem::kDefault
static TSystem::EAclicPropertiesTSystem::kFlatBuildDir
static TObject::EStatusBitsTObject::kHasUUID
static TObject::EStatusBitsTObject::kInvalidObject
static TObject::(anonymous)TObject::kIsOnHeap
static TObject::EStatusBitsTObject::kIsReferenced
static TObject::EStatusBitsTObject::kMustCleanup
static TObject::EStatusBitsTObject::kNoContextMenu
static TObject::(anonymous)TObject::kNotDeleted
static TObject::EStatusBitsTObject::kObjInCanvas
static TSystem::EAclicModeTSystem::kOpt
static TObject::(anonymous)TObject::kOverwrite
static TObject::(anonymous)TObject::kSingleKey
static TObject::(anonymous)TObject::kWriteDelete
static TObject::(anonymous)TObject::kZombie
TSystem::EAclicModeTSystem::fAclicModeWhether the compilation should be done debug or opt
Int_tTSystem::fAclicPropertiesVarious boolean flag for change ACLiC's behavior.
Int_tTSystem::fBeepDurationUsed by Beep()
Int_tTSystem::fBeepFreqUsed by Beep()
TStringTSystem::fBuildArchArchitecure for which ROOT was built (passed to ./configure)
TStringTSystem::fBuildCompilerCompiler used to build this ROOT
TStringTSystem::fBuildCompilerVersionCompiler version used to build this ROOT
TStringTSystem::fBuildDirLocation where to build ACLiC shared library and use as scratch area.
TStringTSystem::fBuildNodeDetailed information where ROOT was built
TSeqCollection*TSystem::fCompiledList of shared libs from compiled macros to be deleted
Bool_tTSystem::fDoneTrue if eventloop should be finished
TSeqCollection*TSystem::fFileHandlerList of file handlers
TStringTSystem::fFlagsDebugFlags for debug compilation
TStringTSystem::fFlagsOptFlags for optimized compilation
TSeqCollection*TSystem::fHelpersList of helper classes for alternative file/directory access
Bool_tTSystem::fInControlTrue if in eventloop
TStringTSystem::fIncludePathUsed to expand $IncludePath in the directives given to SetMakeSharedLib and SetMakeExe
Bool_tTSystem::fInsideNotifyUsed by DispatchTimers()
Bool_tTNetSystem::fIsLocalTRUE if the path points to this host
Int_tTSystem::fLevelLevel of nested eventloops
TStringTSystem::fLinkdefSuffixDefault suffix for linkdef files to be used by ACLiC (see EACLiCProperties)
TStringTSystem::fLinkedLibsUsed to expand $LinkedLibs in the directives given to SetMakeSharedLib and SetMakeExe
TStringTSystem::fListLibsList shared libraries, cache used by GetLibraries
TStringTSystem::fListPathsList of all include (fIncludePath + interpreter include path). Cache used by GetIncludePath
TStringTNetSystem::fLocalPrefixif fIsLocal, prefix to be prepend locally
TStringTSystem::fMakeExeDirective used to build an executable
TStringTSystem::fMakeSharedLibDirective used to build a shared library
Int_tTSystem::fMaxrfdLargest fd in read mask
Int_tTSystem::fMaxwfdLargest fd in write mask
TStringTNamed::fNameobject identifier
Int_tTSystem::fNfdNumber of fd's in masks
TStringTSystem::fObjExtExtension of object files (.o, .obj, etc.)
TSeqCollection*TSystem::fOnExitListList of items to be cleaned-up on exit
TFdSet*TSystem::fReadmask!Files that should be checked for read events
TFdSet*TSystem::fReadready!Files with reads waiting
Int_tTSystem::fSigcntNumber of pending signals
TSeqCollection*TSystem::fSignalHandlerList of signal handlers
TFdSet*TSystem::fSignals!Signals that were trapped
TStringTSystem::fSoExtExtension of shared library (.so, .sl, .a, .dll, etc.)
TSeqCollection*TSystem::fStdExceptionHandlerList of std::exception handlers
TSeqCollection*TSystem::fTimersList of timers
TStringTNamed::fTitleobject title
TStringTSystem::fWdpathWorking directory
TFdSet*TSystem::fWritemask!Files that should be checked for write events
TFdSet*TSystem::fWriteready!Files with writes waiting
TStringfDirCurrent directory
TStringfDirEntryLast dir entry
VecStringVP_tfDirListBuffer for directory content
void*fDirpDirectory pointer
Bool_tfIsRootdNature of remote file server
Bool_tfIsXRootdNature of remote file server
TStringfUrlInitial url
static THashListfgAddrFQDNCross-table address<->FQDN
static THashListfgAdminHashList of existing XrdClientAdmin
static Bool_tfgInitDoneAvoid initializing more than once
static Bool_tfgRootdBCControl rootd backward compatibility

Class Charts

Inheritance Chart:

Function documentation

TXNetSystem(Bool_t owner = kTRUE)
 Create system management class without connecting to server.
TXNetSystem(const char* url, Bool_t owner = kTRUE)
 Create system management class and connect to server specified by url.
XrdClientAdmin * Connect(const char* url)
 Init a connection to the server.
 Returns a pointer to the appropriate instance of XrdClientAdmin or 0
 in case of failure.
void InitXrdClient()
 One-time initialization of some communication variables for xrootd protocol
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!!
int Unlink(const char* path)
 Unlink 'path' on the remote server system.
 Returns 0 on success, -1 otherwise.
Bool_t IsOnline(const char* path)
 Check if the file defined by 'path' is ready to be used
Bool_t Prepare(const char* path, UChar_t opt = 8, UChar_t prio = 0)
 Issue a prepare request for file defined by 'path'
Int_t Prepare(TCollection* paths, UChar_t opt = 8, UChar_t prio = 0, TString* buf = 0)
 Issue a prepare request for a list of files defined by 'paths', which must
 be of one of the following types: TFileInfo, TUrl, TObjString.
 On output, bufout, if defined, points to a buffer form that can be used
 with GetPathsInfo.
 Return the number of paths found or -1 if any error occured.
Bool_t GetPathsInfo(const char* paths, UChar_t* info)
 Retrieve status of a '\n'-separated list of files in 'paths'.
 The information is returned as one UChar_t per file in 'info';
 'info' must be allocated by the caller.
Bool_t IsPathLocal(const char* path)
 Returns TRUE if the url in 'path' points to the local file system.
 This is used to avoid going through the NIC card for local operations.
Int_t Locate(const char* path, TString& endurl)
 Get end-point url of a file. Info is returned in eurl.
 The function returns 0 in case of success and 1 if the file could
 not be stat'ed.
XrdClientAdmin * GetClientAdmin(const char* url)
 Checks if an admin for 'url' exists already.
 Avoid duplications.
TString GetKey(const char* url)
 Build from uu a unique ID key used in hash tables
void * GetDirPtr() const
{ return fDirp; }
TXNetSystem(Bool_t owner = kTRUE)
virtual ~TXNetSystem()
{ }