xrootd
XrdPfcIOFileBlock.hh
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1 #ifndef __XRDPFC_IO_FILE_BLOCK_HH__
2 #define __XRDPFC_IO_FILE_BLOCK_HH__
3 //----------------------------------------------------------------------------------
4 // Copyright (c) 2014 by Board of Trustees of the Leland Stanford, Jr., University
5 // Author: Alja Mrak-Tadel, Matevz Tadel, Brian Bockelman
6 //----------------------------------------------------------------------------------
7 // XRootD is free software: you can redistribute it and/or modify
8 // it under the terms of the GNU Lesser General Public License as published by
9 // the Free Software Foundation, either version 3 of the License, or
10 // (at your option) any later version.
11 //
12 // XRootD is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
16 //
17 // You should have received a copy of the GNU Lesser General Public License
18 // along with XRootD. If not, see <http://www.gnu.org/licenses/>.
19 //----------------------------------------------------------------------------------
20 #include <map>
21 #include <string>
22 
23 #include "XrdOuc/XrdOucCache.hh"
24 #include "XrdSys/XrdSysPthread.hh"
25 
26 #include "XrdPfcIO.hh"
27 
28 class XrdSysError;
29 class XrdOssDF;
30 
31 namespace XrdPfc
32 {
33 //----------------------------------------------------------------------------
37 //----------------------------------------------------------------------------
38 class IOFileBlock : public IO
39 {
40 public:
42 
44 
47  bool ioActive() /* override */;
48 
51  void DetachFinalize() /* override */;
52 
53  //---------------------------------------------------------------------
55  //---------------------------------------------------------------------
56  using XrdOucCacheIO::Read;
57 
58  virtual int Read(char *Buffer, long long Offset, int Length);
59 
60  virtual int Fstat(struct stat &sbuff);
61 
62  virtual long long FSize();
63 
64 private:
65  long long m_blocksize;
66  std::map<int, File*> m_blocks;
68  struct stat *m_localStat;
71 
74  File* newBlockFile(long long off, int blocksize);
75  void CloseInfoFile();
76 };
77 }
78 
79 #endif
#define stat(a, b)
Definition: XrdPosix.hh:96
Definition: XrdOss.hh:62
Definition: XrdOucCache.hh:103
virtual int Read(char *buff, long long offs, int rlen)=0
Definition: XrdOucCacheStats.hh:44
Attaches/creates and detaches/deletes cache-io objects for disk based cache.
Definition: XrdPfc.hh:281
Definition: XrdPfcFile.hh:134
Downloads original file into multiple files, chunked into blocks. Only blocks that are asked for are ...
Definition: XrdPfcIOFileBlock.hh:39
bool ioActive()
Abstract virtual method of XrdPfcIO Called to check if destruction needs to be done in a separate tas...
XrdSysMutex m_mutex
map mutex
Definition: XrdPfcIOFileBlock.hh:67
std::map< int, File * > m_blocks
map of created blocks
Definition: XrdPfcIOFileBlock.hh:66
File * newBlockFile(long long off, int blocksize)
Info m_info
Definition: XrdPfcIOFileBlock.hh:69
long long m_blocksize
size of file-block
Definition: XrdPfcIOFileBlock.hh:65
void DetachFinalize()
Abstract virtual method of XrdPfcIO Called to destruct the IO object after it is no longer used.
struct stat * m_localStat
Definition: XrdPfcIOFileBlock.hh:68
XrdOssDF * m_info_file
Definition: XrdPfcIOFileBlock.hh:70
IOFileBlock(XrdOucCacheIO *io, XrdOucCacheStats &stats, Cache &cache)
virtual int Read(char *Buffer, long long Offset, int Length)
virtual int Fstat(struct stat &sbuff)
virtual long long FSize()
Base cache-io class that implements XrdOucCacheIO abstract methods.
Definition: XrdPfcIO.hh:17
Status of cached file. Can be read from and written into a binary file.
Definition: XrdPfcInfo.hh:49
Definition: XrdSysError.hh:90
Definition: XrdSysPthread.hh:166
Definition: XrdPfc.hh:46