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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#ifndef CEPH_ANCHOR_H
#define CEPH_ANCHOR_H
#include "mds_types.h"
#include <string>
#include "include/buffer.h"
using std::string;
// identifies a anchor table mutation
// anchor type
class Anchor {
public:
inodeno_t ino; // anchored ino
inodeno_t dirino;
__u32 dn_hash;
int nref; // reference count
version_t updated;
Anchor() : dn_hash(0), nref(0), updated(0) {}
Anchor(inodeno_t i, inodeno_t di, __u32 hash, int nr, version_t u) :
ino(i), dirino(di), dn_hash(hash), nref(nr), updated(u) { }
void encode(bufferlist &bl) const {
__u8 struct_v = 1;
::encode(struct_v, bl);
::encode(ino, bl);
::encode(dirino, bl);
::encode(dn_hash, bl);
::encode(nref, bl);
::encode(updated, bl);
}
void decode(bufferlist::iterator &bl) {
__u8 struct_v;
::decode(struct_v, bl);
::decode(ino, bl);
::decode(dirino, bl);
::decode(dn_hash, bl);
::decode(nref, bl);
::decode(updated, bl);
}
};
WRITE_CLASS_ENCODER(Anchor)
inline ostream& operator<<(ostream& out, const Anchor &a)
{
return out << "a(" << a.ino << " " << a.dirino << "/" << a.dn_hash << " " << a.nref << " v" << a.updated << ")";
}
#endif
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