00001 #ifndef __XRDFILECACHE_IO_FILE_BLOCK_HH__ 00002 #define __XRDFILECACHE_IO_FILE_BLOCK_HH__ 00003 //---------------------------------------------------------------------------------- 00004 // Copyright (c) 2014 by Board of Trustees of the Leland Stanford, Jr., University 00005 // Author: Alja Mrak-Tadel, Matevz Tadel, Brian Bockelman 00006 //---------------------------------------------------------------------------------- 00007 // XRootD is free software: you can redistribute it and/or modify 00008 // it under the terms of the GNU Lesser General Public License as published by 00009 // the Free Software Foundation, either version 3 of the License, or 00010 // (at your option) any later version. 00011 // 00012 // XRootD is distributed in the hope that it will be useful, 00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 // GNU General Public License for more details. 00016 // 00017 // You should have received a copy of the GNU Lesser General Public License 00018 // along with XRootD. If not, see <http://www.gnu.org/licenses/>. 00019 //---------------------------------------------------------------------------------- 00020 #include <map> 00021 #include <string> 00022 00023 #include "XrdOuc/XrdOucCache.hh" 00024 #include "XrdSys/XrdSysPthread.hh" 00025 00026 #include "XrdFileCache.hh" 00027 #include "XrdFileCachePrefetch.hh" 00028 00029 class XrdSysError; 00030 class XrdOssDF; 00031 00032 namespace XrdFileCache 00033 { 00034 //---------------------------------------------------------------------------- 00038 //---------------------------------------------------------------------------- 00039 class IOFileBlock : public IO 00040 { 00041 public: 00042 //------------------------------------------------------------------------ 00044 //------------------------------------------------------------------------ 00045 IOFileBlock(XrdOucCacheIO &io, XrdOucCacheStats &stats, Cache &cache); 00046 00047 //------------------------------------------------------------------------ 00049 //------------------------------------------------------------------------ 00050 ~IOFileBlock() {} 00051 00052 //--------------------------------------------------------------------- 00056 //--------------------------------------------------------------------- 00057 virtual XrdOucCacheIO *Detach(); 00058 00059 //--------------------------------------------------------------------- 00061 //--------------------------------------------------------------------- 00062 virtual int Read(char *Buffer, long long Offset, int Length); 00063 00066 virtual bool ioActive(); 00067 00068 private: 00069 long long m_blocksize; 00070 std::map<int, Prefetch*> m_blocks; 00071 XrdSysMutex m_mutex; 00072 00073 void GetBlockSizeFromPath(); 00074 Prefetch* newBlockPrefetcher(long long off, int blocksize, XrdOucCacheIO* io); 00075 }; 00076 } 00077 00078 #endif