DCacheFile.h

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#ifndef DCACHE_ADAPTOR_DCACHE_FILE_H
# define DCACHE_ADAPTOR_DCACHE_FILE_H

# include "Utilities/StorageFactory/interface/Storage.h"
# include "Utilities/StorageFactory/interface/IOFlags.h"
# include <string>

class DCacheFile : public Storage
{
public:
  DCacheFile (void);
  DCacheFile (IOFD fd);
  DCacheFile (const char *name, int flags = IOFlags::OpenRead, int perms = 0666);
  DCacheFile (const std::string &name, int flags = IOFlags::OpenRead, int perms = 0666);
  ~DCacheFile (void) override;

  virtual void  create (const char *name,
                bool exclusive = false,
                int perms = 0666);
  virtual void  create (const std::string &name,
                bool exclusive = false,
                int perms = 0666);
  virtual void  open (const char *name,
                  int flags = IOFlags::OpenRead,
                  int perms = 0666);
  virtual void  open (const std::string &name,
                  int flags = IOFlags::OpenRead,
                  int perms = 0666);

  using Storage::read;
  using Storage::write;
  using Storage::position;

  IOSize    read (void *into, IOSize n) override;
  IOSize    readv (IOBuffer *into, IOSize buffers) override;
  IOSize    readv (IOPosBuffer *into, IOSize buffers) override;
  IOSize    write (const void *from, IOSize n) override;

  IOOffset  position (IOOffset offset, Relative whence = SET) override;
  void      resize (IOOffset size) override;

  void      close (void) override;
  virtual void      abort (void);

private:
  IOFD          m_fd;
  bool          m_close;
  std::string       m_name;
};

#endif // DCACHE_ADAPTOR_DCACHE_FILE_H