blob: 95aca971708fad82a5f4c83adfb471d55ff936f9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
// -*- 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_GENERICFILESTOREBACKEDN_H
#define CEPH_GENERICFILESTOREBACKEDN_H
#include "FileStore.h"
class GenericFileStoreBackend : public FileStoreBackend {
private:
bool ioctl_fiemap;
bool m_filestore_fiemap;
bool m_filestore_fsync_flushes_journal_data;
public:
GenericFileStoreBackend(FileStore *fs);
virtual ~GenericFileStoreBackend() {};
virtual int detect_features();
virtual int create_current();
virtual bool can_checkpoint() { return false; };
virtual int list_checkpoints(list<string>& ls) { return 0; }
virtual int create_checkpoint(const string& name, uint64_t *cid) { return -EOPNOTSUPP; }
virtual int sync_checkpoint(uint64_t id) { return -EOPNOTSUPP; }
virtual int rollback_to(const string& name) { return -EOPNOTSUPP; }
virtual int destroy_checkpoint(const string& name) { return -EOPNOTSUPP; }
virtual int syncfs();
virtual bool has_fiemap() { return ioctl_fiemap; }
virtual int do_fiemap(int fd, off_t start, size_t len, struct fiemap **pfiemap);
virtual int clone_range(int from, int to, uint64_t srcoff, uint64_t len, uint64_t dstoff) {
return _copy_range(from, to, srcoff, len, dstoff);
}
};
#endif
|
