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XrdPfcIO.hh
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1 #ifndef __XRDPFC_CACHE_IO_HH__
2 #define __XRDPFC_CACHE_IO_HH__
3 
4 class XrdSysTrace;
5 
6 #include "XrdPfc.hh"
7 #include "XrdOuc/XrdOucCache.hh"
10 
11 namespace XrdPfc
12 {
13 //----------------------------------------------------------------------------
15 //----------------------------------------------------------------------------
16 class IO : public XrdOucCacheIO
17 {
18 public:
19  IO (XrdOucCacheIO *io, XrdOucCacheStats &stats, Cache &cache);
20 
22  virtual XrdOucCacheIO *Base() { return m_io; }
23 
25  virtual const char *Path() { return m_io->Path(); }
26 
27  using XrdOucCacheIO::Sync;
28 
29  virtual int Sync() { return 0; }
30 
32 
33  virtual int Trunc(long long Offset) { return -ENOTSUP; }
34 
36 
37  virtual int Write(char *Buffer, long long Offset, int Length) { return -ENOTSUP; }
38 
39  virtual void Update(XrdOucCacheIO &iocp);
40 
41  // Detach is virtual from XrdOucCacheIO, here it is split
42  // into abstract ioActive() and DetachFinalize().
43  bool Detach(XrdOucCacheIOCD &iocdP) /* final */;
44 
45  virtual bool ioActive() = 0;
46  virtual void DetachFinalize() = 0;
47 
49 
51 
52 protected:
55 
56  const char *m_traceID;
57  std::string m_path;
58  const char* GetPath() { return m_path.c_str(); }
59 
60 private:
63  void SetInput(XrdOucCacheIO*);
64 };
65 }
66 
67 #endif
68 
virtual void Update(XrdOucCacheIO &iocp)
virtual int Trunc(long long offs)=0
virtual void DetachFinalize()=0
virtual const char * Path()
Original data source URL.
Definition: XrdPfcIO.hh:25
const char * m_traceID
Definition: XrdPfcIO.hh:56
Base cache-io class that implements XrdOucCacheIO abstract methods.
Definition: XrdPfcIO.hh:16
Definition: XrdOucCache.hh:102
Attaches/creates and detaches/deletes cache-io objects for disk based cache.
Definition: XrdPfc.hh:280
bool Detach(XrdOucCacheIOCD &iocdP)
Definition: XrdOucCache.hh:79
Definition: XrdSysTrace.hh:48
Definition: XrdSysPthread.hh:165
virtual const char * Path()=0
virtual int Trunc(long long Offset)
Definition: XrdPfcIO.hh:33
const char * GetPath()
Definition: XrdPfcIO.hh:58
void SetInput(XrdOucCacheIO *)
XrdSysTrace * GetTrace()
Definition: XrdPfc.hh:404
std::string m_path
Definition: XrdPfcIO.hh:57
virtual int Sync()=0
XrdOucCacheStats & m_statsGlobal
reference to Cache statistics
Definition: XrdPfcIO.hh:53
virtual XrdOucCacheIO * Base()
Original data source.
Definition: XrdPfcIO.hh:22
XrdOucCacheIO * m_io
original data source
Definition: XrdPfcIO.hh:61
virtual int Write(char *Buffer, long long Offset, int Length)
Definition: XrdPfcIO.hh:37
Definition: XrdOucCacheStats.hh:43
virtual bool ioActive()=0
XrdSysTrace * GetTrace()
Definition: XrdPfcIO.hh:48
IO(XrdOucCacheIO *io, XrdOucCacheStats &stats, Cache &cache)
XrdOucCacheIO * GetInput()
virtual int Write(char *buff, long long offs, int wlen)=0
virtual int Sync()
Definition: XrdPfcIO.hh:29
Cache & m_cache
reference to Cache needed in detach
Definition: XrdPfcIO.hh:54
XrdSysMutex updMutex
Definition: XrdPfcIO.hh:62