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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_INOTABLE_H
#define CEPH_INOTABLE_H
#include "MDSTable.h"
#include "include/interval_set.h"
class MDS;
class InoTable : public MDSTable {
interval_set<inodeno_t> free; // unused ids
interval_set<inodeno_t> projected_free;
public:
InoTable(MDS *m) : MDSTable(m, "inotable", true) { }
inodeno_t project_alloc_id(inodeno_t id=0);
void apply_alloc_id(inodeno_t id);
void project_alloc_ids(interval_set<inodeno_t>& inos, int want);
void apply_alloc_ids(interval_set<inodeno_t>& inos);
void project_release_ids(interval_set<inodeno_t>& inos);
void apply_release_ids(interval_set<inodeno_t>& inos);
void replay_alloc_id(inodeno_t ino);
void replay_alloc_ids(interval_set<inodeno_t>& inos);
void replay_release_ids(interval_set<inodeno_t>& inos);
void replay_reset();
void reset_state();
void encode_state(bufferlist& bl) {
__u8 v = 1;
::encode(v, bl);
::encode(free, bl);
}
void decode_state(bufferlist::iterator& bl) {
__u8 v;
::decode(v, bl);
::decode(free, bl);
projected_free = free;
}
void skip_inos(inodeno_t i);
};
#endif
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