blob: bb0c81d21af851dba156570ac4634770c47f6045 (
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
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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef CEPH_LIBRBD_IMAGE_DETACH_CHILD_REQUEST_H
#define CEPH_LIBRBD_IMAGE_DETACH_CHILD_REQUEST_H
#include "include/int_types.h"
#include "include/buffer.h"
#include "include/rados/librados.hpp"
#include "librbd/Types.h"
class Context;
namespace librbd {
class ImageCtx;
namespace image {
template <typename ImageCtxT = ImageCtx>
class DetachChildRequest {
public:
static DetachChildRequest* create(ImageCtxT& image_ctx, Context* on_finish) {
return new DetachChildRequest(image_ctx, on_finish);
}
DetachChildRequest(ImageCtxT& image_ctx, Context* on_finish)
: m_image_ctx(image_ctx), m_on_finish(on_finish) {
}
~DetachChildRequest();
void send();
private:
/**
* @verbatim
*
* <start>
* |
* (v1) | (v2)
* /--------------/ \--------------\
* | |
* v v
* REMOVE_CHILD CHILD_DETACH
* | |
* | v
* | GET_SNAPSHOT
* | (snapshot in-use) . |
* |/. . . . . . . . . . . . . . . |
* | v
* | OPEN_PARENT
* | |
* | v
* | REMOVE_SNAPSHOT
* | |
* | v
* | CLOSE_PARENT
* | |
* |/------------------------------/
* |
* v
* <finish>
*
* @endverbatim
*/
ImageCtxT& m_image_ctx;
Context* m_on_finish;
librados::IoCtx m_parent_io_ctx;
cls::rbd::ParentImageSpec m_parent_spec;
std::string m_parent_header_name;
cls::rbd::SnapshotNamespace m_parent_snap_namespace;
std::string m_parent_snap_name;
ImageCtxT* m_parent_image_ctx = nullptr;
ceph::bufferlist m_out_bl;
void clone_v2_child_detach();
void handle_clone_v2_child_detach(int r);
void clone_v2_get_snapshot();
void handle_clone_v2_get_snapshot(int r);
void clone_v2_open_parent();
void handle_clone_v2_open_parent(int r);
void clone_v2_remove_snapshot();
void handle_clone_v2_remove_snapshot(int r);
void clone_v2_close_parent();
void handle_clone_v2_close_parent(int r);
void clone_v1_remove_child();
void handle_clone_v1_remove_child(int r);
void finish(int r);
};
} // namespace image
} // namespace librbd
extern template class librbd::image::DetachChildRequest<librbd::ImageCtx>;
#endif // CEPH_LIBRBD_IMAGE_DETACH_CHILD_REQUEST_H
|
