ceph/src/include/uuid.h

#ifndef _CEPH_UUID_H
#define _CEPH_UUID_H

/*
 * Thin C++ wrapper around libuuid.
 */

#include "encoding.h"
#include <ostream>

extern "C" {
#include <uuid/uuid.h>
#include <unistd.h>
}

struct uuid_d {
  uuid_t uuid;

  uuid_d() {
    memset(&uuid, 0, sizeof(uuid));
  }

  bool is_zero() const {
    return uuid_is_null(uuid);
  }

  void generate_random() {
    uuid_generate(uuid);
  }
  
  bool parse(const char *s) {
    return uuid_parse(s, uuid) == 0;
  }
  void print(char *s) {
    return uuid_unparse(uuid, s);
  }
  
  void encode(bufferlist& bl) const {
    ::encode_raw(uuid, bl);
  }
  void decode(bufferlist::iterator& p) const {
    ::decode_raw(uuid, p);
  }
};
WRITE_CLASS_ENCODER(uuid_d)

inline std::ostream& operator<<(std::ostream& out, const uuid_d& u) {
  char b[37];
  uuid_unparse(u.uuid, b);
  return out << b;
}

inline bool operator==(const uuid_d& l, const uuid_d& r) {
  return uuid_compare(l.uuid, r.uuid) == 0;
}
inline bool operator!=(const uuid_d& l, const uuid_d& r) {
  return uuid_compare(l.uuid, r.uuid) != 0;
}


#endif