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>

namespace edm::storage {
  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::position;
    using Storage::read;
    using Storage::write;

    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;
  };
}  // namespace edm::storage
#endif  // DCACHE_ADAPTOR_DCACHE_FILE_H