extent_client.h

// extent client interface.

#ifndef extent_client_h
#define extent_client_h

#include <string>
#include "extent_protocol.h"
#include "rpc.h"

class extent_client {
 private:
  rpcc *cl;

  struct extent_t {
    std::string ext;
    extent_protocol::attr attr;

    bool dirty;
    bool removed;

    extent_t() : dirty(false), removed(false) { }
  };

  std::map<extent_protocol::extentid_t, extent_t> exts_cache;

 public:
  extent_client(std::string dst);

  extent_protocol::status get(extent_protocol::extentid_t eid,
                              std::string &buf);
  extent_protocol::status getattr(extent_protocol::extentid_t eid,
                                  extent_protocol::attr &a);
  extent_protocol::status put(extent_protocol::extentid_t eid, std::string buf);
  extent_protocol::status remove(extent_protocol::extentid_t eid);

  extent_protocol::status flush(extent_protocol::extentid_t eid);

 private:
  extent_protocol::status get_impl(extent_protocol::extentid_t eid);
  extent_protocol::status put_impl(extent_protocol::extentid_t eid);
  extent_protocol::status remove_impl(extent_protocol::extentid_t eid);
};

#endif