00001 // @(#)root/io:$Id: TLockFile.h 36484 2010-11-02 16:00:10Z rdm $ 00002 // Author: Jan Fiete Grosse-Oetringhaus, 04.06.07 00003 00004 /************************************************************************* 00005 * Copyright (C) 1995-2007, Rene Brun and Fons Rademakers. * 00006 * All rights reserved. * 00007 * * 00008 * For the licensing terms see $ROOTSYS/LICENSE. * 00009 * For the list of contributors see $ROOTSYS/README/CREDITS. * 00010 *************************************************************************/ 00011 00012 #ifndef ROOT_TLockFile 00013 #define ROOT_TLockFile 00014 00015 ////////////////////////////////////////////////////////////////////////// 00016 // // 00017 // TLockFile // 00018 // // 00019 // Lock an object using a file. // 00020 // Constructor blocks until lock is obtained. Lock is released in the // 00021 // destructor. // 00022 // // 00023 // Use it in scope-blocks like: // 00024 // { // 00025 // TLockFile lock("path.to.lock.file"); // 00026 // // do something you need the lock for // 00027 // } // lock is automatically released // 00028 // // 00029 ////////////////////////////////////////////////////////////////////////// 00030 00031 #ifndef ROOT_TObject 00032 #include "TObject.h" 00033 #endif 00034 #ifndef ROOT_TString 00035 #include "TString.h" 00036 #endif 00037 00038 00039 class TLockFile : public TObject { 00040 00041 private: 00042 TLockFile(const TLockFile&); // not implemented 00043 TLockFile& operator=(const TLockFile&); // not implemented 00044 00045 protected: 00046 TString fPath; // path to file holding the lock 00047 00048 Bool_t Lock(const char *path, Int_t timeLimit); 00049 00050 public: 00051 TLockFile(const char *path, Int_t timeLimit = 0); 00052 virtual ~TLockFile(); 00053 00054 ClassDef(TLockFile, 0) //Lock an object using a file 00055 }; 00056 00057 #endif
1.5.1