TUnixSystem

class TUnixSystem : public TSystem

    protected:

      virtual char* DynamicPathName(char* lib, Bool_t quiet = kFALSE)
              void* FindDynLib(char* lib)
        const char* GetDynamicPath()
                int ReadUtmpFile()
              void* SearchUtmpEntry(int nentries, char* tty)
             Func_t UnixDynFindSymbol(char* lib, char* entry)
               void UnixDynListLibs(char* lib)
               void UnixDynListSymbols(char* lib, char* re)
                int UnixDynLoad(char* lib)
               void UnixDynUnload(char* lib)
                int UnixFilestat(char* path, Long_t* id, Long_t* size, Long_t* flags, Long_t* modtime)
        const char* UnixGetdirentry(void* dir)
        const char* UnixHomedirectory(char* user = 0)
                int UnixMakedir(char* name)
             Long_t UnixNow()
              void* UnixOpendir(char* name)
                int UnixRecv(int sock, void* buf, int len, int flag)
                int UnixSelect(UInt_t nfds, TFdSet* readready, TFdSet* writeready, Long_t timeout)
                int UnixSend(int sock, void* buf, int len, int flag)
                int UnixSetitimer(Long_t ms)
               void UnixSignal(ESignals sig, SigHandler_t h)
        const char* UnixSigname(ESignals sig)
                int UnixTcpConnect(char* hostname, int port)
                int UnixTcpService(int port, Bool_t reuse, int backlog)
                int UnixUnixConnect(int port)
                int UnixUnixService(int port, int backlog)
                int UnixWaitchild()

    public:

                  TUnixSystem TUnixSystem()
                  TUnixSystem TUnixSystem(TUnixSystem&)
                 virtual void ~TUnixSystem()
                 virtual void Abort(int code = 0)
                  virtual int AcceptConnection(int sock)
               virtual Bool_t AccessPathName(char* path, EAccessMode mode = kFileExists)
                 virtual void AddFileHandler(TFileHandler* fh)
                 virtual void AddSignalHandler(TSignalHandler* sh)
                 virtual void AddTimer(TTimer* ti)
                  virtual int AnnounceTcpService(int port, Bool_t reuse, int backlog)
                  virtual int AnnounceUnixService(int port, int backlog)
               virtual Bool_t ChangeDirectory(char* path)
                         void CheckChilds()
                       Bool_t CheckSignals(Bool_t sync)
                      TClass* Class()
                 virtual void CloseConnection(int sock)
                 virtual void Closelog()
                  virtual int ClosePipe(FILE* pipe)
                virtual char* ConcatFileName(char* dir, char* name)
                          int ConnectService(char* server, int port)
                 virtual void DispatchOneEvent(Bool_t pendingOnly = kFALSE)
                         void DispatchSignals(ESignals sig)
                       Bool_t DispatchTimers(Bool_t mode)
               virtual Func_t DynFindSymbol(char* module, char* entry)
                  virtual int Exec(char* shellcmd)
                 virtual void Exit(int code, Bool_t mode = kTRUE)
               virtual Bool_t ExpandPathName(TString& patbuf)
                virtual char* ExpandPathName(char* path)
                 virtual void FreeDirectory(void* dirp)
          virtual const char* GetDirEntry(void* dirp)
          virtual const char* Getenv(char* name)
          virtual const char* GetError()
         virtual TInetAddress GetHostByName(char* server)
                  virtual int GetPathInfo(char* path, Long_t* id, Long_t* size, Long_t* flags, Long_t* modtime)
         virtual TInetAddress GetPeerName(int sock)
                  virtual int GetPid()
                  virtual int GetServiceByName(char* service)
                virtual char* GetServiceByPort(int port)
         virtual TInetAddress GetSockName(int sock)
                  virtual int GetSockOpt(int sock, int option, int* val)
          virtual const char* HomeDirectory(Char_t* userName = 0)
          virtual const char* HostName()
                 virtual void IgnoreInterrupt(Bool_t ignore = kTRUE)
               virtual Bool_t Init()
              virtual TClass* IsA()
                  virtual int Link(char* from, char* to)
                 virtual void ListLibraries(char* regexp)
                 virtual void ListSymbols(char* module, char* re)
                  virtual int Load(char* module, char* entry)
                  virtual int MakeDirectory(char* name)
                virtual TTime Now()
                  virtual int OpenConnection(char* server, int port)
                virtual void* OpenDirectory(char* name)
                 virtual void Openlog(char* name, Int_t options, ELogFacility facility)
                virtual FILE* OpenPipe(char* shellcmd, char* mode)
                  virtual int RecvBuf(int sock, void* buffer, int length)
                  virtual int RecvRaw(int sock, void* buffer, int length, int flag)
        virtual TFileHandler* RemoveFileHandler(TFileHandler* fh)
      virtual TSignalHandler* RemoveSignalHandler(TSignalHandler* sh)
              virtual TTimer* RemoveTimer(TTimer* ti)
                 virtual void Rename(char* from, char* to)
                 virtual void ResetTimer(TTimer* ti)
                  virtual int SendBuf(int sock, void* buffer, int length)
                  virtual int SendRaw(int sock, void* buffer, int length, int flag)
                 virtual void SetDisplay()
                 virtual void Setenv(char* name, char* value)
                 virtual void SetProgname(char* name)
                  virtual int SetSockOpt(int sock, int option, int val)
                 virtual void ShowMembers(TMemberInspector& insp, char* parent)
                 virtual void Sleep(UInt_t milliSec)
                 virtual void StackTrace()
                 virtual void Streamer(TBuffer& b)
                  virtual int Symlink(char* from, char* to)
                 virtual void Syslog(ELogLevel level, char* mess)
                  virtual int Umask(Int_t mask)
                  virtual int Unlink(char* name)
                 virtual void Unload(char* module)
                virtual char* Which(char* search, char* file, EAccessMode mode = kFileExists)
          virtual const char* WorkingDirectory()

  Data Members

Class Description

                                                                      
 TUnixSystem                                                          
                                                                      
 Class providing an interface to the UNIX Operating System.           
                                                                      

 Initialize Unix system interface.

 Set the application name (from command line, argv[0]) and copy it in
 gProgName. Copy the application pathname in gProgPath.

 Set DISPLAY environment variable based on utmp entry. Only for UNIX.

 Return system error string.

 Return the system's host name.

 Add a file handler to the list of system file handlers.

 Remove a file handler from the list of file handlers.

 Add a signal handler to list of system signal handlers.

 Remove a signal handler from list of signal handlers.

 Ignore the interrupt signal if ignore == kTRUE else restore previous
 behaviour. Typically call ignore interrupt before writing to disk.

 Dispatch a single event.

 Sleep milliSec milliseconds.

 Handle and dispatch signals.

 Check if some signals were raised and call their Notify() member.

 Check if childs have finished.

 Make a Unix file system directory. Returns 0 in case of success and
 -1 if the directory could not be created.

 Open a Unix file system directory. Returns 0 if directory does not exist.

 Close a Unix file system directory.

 Get next Unix file system directory entry. Returns 0 if no more entries.

 Change directory. Returns kTRUE in case of success, kFALSE otherwise.

 Return working directory.

 Return the user's home directory.

 Concatenate a directory and a file name. Returned string must be
 deleted by user.

 Returns FALSE if one can access a file using the specified access mode.
 Mode is the same as for the Unix access(2) function.

 Rename a file.

 Get info about a file: id, size, flags, modification time.
 Id      is (statbuf.st_dev << 24) + statbuf.st_ino
 Size    is the file size
 Flags   is file type: bit 1 set executable, bit 2 set directory,
                       bit 3 set regular file
 Modtime is modification time

 Create a link from file1 to file2. Returns 0 when successful,
 -1 in case of failure.

 Create a symlink from file1 to file2. Returns 0 when succesfull,
 -1 in case of failure.

 Unlink, i.e. remove, a file or directory.

 Expand a pathname getting rid of special shell characters like ~.$, etc.
 For Unix/Win32 compatibility use $(XXX) instead of $XXX when using
 environment variables in a pathname. If compatibility is not an issue
 you can use on Unix directly $XXX.

 Expand a pathname getting rid of special shell characters like ~.$, etc.
 For Unix/Win32 compatibility use $(XXX) instead of $XXX when using
 environment variables in a pathname. If compatibility is not an issue
 you can use on Unix directly $XXX.

 Expand a pathname getting rid of special shell characaters like ~.$, etc.
 For Unix/Win32 compatibility use $(XXX) instead of $XXX when using
 environment variables in a pathname. If compatibility is not an issue
 you can use on Unix directly $XXX. The user must delete returned string.

 Set the process file creation mode mask.

 Find location of file in a search path.
 User must delete returned string.

 Set environment variable. The string passed will be owned by
 the environment and can not be reused till a "name" is set
 again. The solution below will lose the space for the string
 in that case, but if this functions is not called thousands
 of times that should not be a problem.

 Get environment variable.

 Execute a command.

 Open a pipe.

 Close the pipe.

 Get process id.

 Exit the application.

 Abort the application.

 Print a stack trace.

 Open connection to system log daemon. For the use of the options and
 facility see the Unix openlog man page.

 Send mess to syslog daemon. Level is the logging level and mess the
 message that will be written on the log.

 Close connection to system log daemon.

 Load a shared library. Returns 0 on successful loading, 1 in
 case lib was already loaded and -1 in case lib does not exist
 or in case of error.

 Unload a shared library.

 List symbols in a shared library.

 List all loaded shared libraries.

 Return current time.

 Handle and dispatch timers. If mode = kTRUE dispatch synchronous
 timers else a-synchronous timers.

 Add timer to list of system timers.

 Remove timer from list of system timers.

 Reset a-sync timer.

 Get Internet Protocol (IP) address of host.

 Get Internet Protocol (IP) address of host and port #.

 Get Internet Protocol (IP) address of remote host and port #.

 Get port # of internet service.

 Get name of internet service.

 Connect to service servicename on server servername.

 Open a connection to a service on a server. Try 3 times with an
 interval of 1 second.

 Announce TCP/IP service.

 Announce unix domain service.

 Accept a connection. In case of an error return -1. In case
 non-blocking I/O is enabled and no connections are available
 return -2.

 Close socket.

 Receive a buffer headed by a length indicator. Lenght is the size of
 the buffer. Returns the number of bytes received in buf or -1 in
 case of error.

 Send a buffer headed by a length indicator. Returns length of sent buffer
 or -1 in case of error.

 Receive exactly length bytes into buffer. Use opt to receive out-of-band
 data or to have a peek at what is in the buffer (see TSocket). Buffer
 must be able to store at least length bytes. Returns the number of
 bytes received (can be 0 if other side of connection was closed) or -1
 in case of error, -2 in case of MSG_OOB and errno == EWOULDBLOCK, -3
 in case of MSG_OOB and errno == EINVAL and -4 in case of kNoBlock and
 errno == EWOULDBLOCK.

 Send exactly length bytes from buffer. Use opt to send out-of-band
 data (see TSocket). Returns the number of bytes sent or -1 in case of
 error.

 Set socket option.

 Get socket option.

 Set a signal handler for a signal.

 Return the signal name associated with a signal.

 Get current time in milliseconds since 0:00 Jan 1 1995.

 Set interval timer to time-out in ms milliseconds.

 Wait for events on the file descriptors specified in the readready and
 writeready masks or for timeout (in milliseconds) to occur.

 Returns the user's home directory.

 Make a Unix file system directory. Returns 0 in case of success and
 -1 if the directory could not be created.

 Open a directory.

 Returns the next directory entry.

 Get info about a file: id, size, flags, modification time.
 Id      is (statbuf.st_dev << 24) + statbuf.st_ino
 Size    is the file size
 Flags   is file type: bit 0 set executable, bit 1 set directory,
                       bit 2 set regular file
 Modtime is modification time
 The function returns 0 in case of success and 1 if the file could
 not be stat'ed.

 Wait till child is finished.

 Open a TCP/IP connection to server and connect to a service (i.e. port).
 Is called via the TSocket constructor.

 Connect to a Unix domain socket.

 Open a socket, bind to it and start listening for TCP/IP connections
 on the port. Returns socket fd or -1 if socket() failed, -2 if bind() failed
 or -3 if listen() failed.

 Open a socket, bind to it and start listening for Unix domain connections
 to it. Returns socket fd or -1.

 Receive exactly length bytes into buffer. Returns number of bytes
 received. Returns -1 in case of error, -2 in case of MSG_OOB
 and errno == EWOULDBLOCK, -3 in case of MSG_OOB and errno == EINVAL
 and -4 in case of kNoBlock and errno == EWOULDBLOCK.

 Send exactly length bytes from buffer. Returns -1 in case of error,
 otherwise number of sent bytes.

 Get shared library search path. Static utility function.

 Returns the path of a shared library (searches for library in the
 shared library search path). If no file name extension is provided
 it first tries .so, .sl, .dl and then .a (for AIX). The returned string
 must be deleted.

 Returns the handle to a loaded shared library. Returns 0 when library
 not loaded.

 Load a shared library. Returns 0 on successful loading, 1 in
 case lib was already loaded and -1 in case lib does not exist
 or in case of error.

 Finds and returns a function pointer to a symbol in the shared library.
 Returns 0 when symbol not found.

 List symbols in a shared library. One can use wildcards to list only
 the intresting symbols.

 List all loaded shared libraries.

 Unload a shared library.

 Read utmp file. Returns number of entries in utmp file.

 Look for utmp entry which is connected to terminal tty.

Inline Functions

            TClass* Class()
            TClass* IsA()
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
        TUnixSystem TUnixSystem(TUnixSystem&)