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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef CEPH_LIBRBD_IMAGE_GET_METADATA_REQUEST_H
#define CEPH_LIBRBD_IMAGE_GET_METADATA_REQUEST_H
#include "include/common_fwd.h"
#include "include/rados/librados.hpp"
#include "include/rbd/librbd.hpp"
#include <string>
#include <map>
class Context;
namespace librbd {
struct ImageCtx;
namespace image {
template <typename ImageCtxT = ImageCtx>
class GetMetadataRequest {
public:
typedef std::map<std::string, bufferlist> KeyValues;
static GetMetadataRequest* create(
IoCtx &io_ctx, const std::string &oid, bool filter_internal,
const std::string& filter_key_prefix, const std::string& last_key,
uint32_t max_results, KeyValues* key_values, Context *on_finish) {
return new GetMetadataRequest(io_ctx, oid, filter_internal,
filter_key_prefix, last_key, max_results,
key_values, on_finish);
}
GetMetadataRequest(
IoCtx &io_ctx, const std::string &oid, bool filter_internal,
const std::string& filter_key_prefix, const std::string& last_key,
uint32_t max_results, KeyValues* key_values, Context *on_finish);
void send();
private:
/**
* @verbatim
*
* <start>
* |
* | /-------\
* | | |
* v v |
* METADATA_LIST ---/
* |
* v
* <finish>
*
* @endverbatim
*/
librados::IoCtx m_io_ctx;
std::string m_oid;
bool m_filter_internal;
std::string m_filter_key_prefix;
std::string m_last_key;
uint32_t m_max_results;
KeyValues* m_key_values;
Context* m_on_finish;
CephContext* m_cct;
bufferlist m_out_bl;
uint32_t m_expected_results = 0;
void metadata_list();
void handle_metadata_list(int r);
void finish(int r);
};
} //namespace image
} //namespace librbd
extern template class librbd::image::GetMetadataRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_IMAGE_GET_METADATA_REQUEST_H
|
