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
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H
#define RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H
#include "include/int_types.h"
#include "cls/rbd/cls_rbd_types.h"
#include "librbd/ImageCtx.h"
#include "librbd/mirror/Types.h"
#include <string>
class Context;
namespace librbd {
class ImageCtx;
namespace asio { struct ContextWQ; }
} // namespace librbd
namespace rbd {
namespace mirror {
namespace image_replayer {
template <typename ImageCtxT = librbd::ImageCtx>
class OpenLocalImageRequest {
public:
static OpenLocalImageRequest* create(librados::IoCtx &local_io_ctx,
ImageCtxT **local_image_ctx,
const std::string &local_image_id,
librbd::asio::ContextWQ *work_queue,
Context *on_finish) {
return new OpenLocalImageRequest(local_io_ctx, local_image_ctx,
local_image_id, work_queue, on_finish);
}
OpenLocalImageRequest(librados::IoCtx &local_io_ctx,
ImageCtxT **local_image_ctx,
const std::string &local_image_id,
librbd::asio::ContextWQ *work_queue,
Context *on_finish);
void send();
private:
/**
* @verbatim
*
* <start>
* |
* v
* OPEN_IMAGE * * * * * * * *
* | *
* v *
* GET_MIRROR_INFO * * * * *
* | *
* v (skip if primary) v
* LOCK_IMAGE * * * > CLOSE_IMAGE
* | |
* v |
* <finish> <---------------/
*
* @endverbatim
*/
librados::IoCtx &m_local_io_ctx;
ImageCtxT **m_local_image_ctx;
std::string m_local_image_id;
librbd::asio::ContextWQ *m_work_queue;
Context *m_on_finish;
cls::rbd::MirrorImage m_mirror_image;
librbd::mirror::PromotionState m_promotion_state =
librbd::mirror::PROMOTION_STATE_NON_PRIMARY;
std::string m_primary_mirror_uuid;
int m_ret_val = 0;
void send_open_image();
void handle_open_image(int r);
void send_get_mirror_info();
void handle_get_mirror_info(int r);
void send_lock_image();
void handle_lock_image(int r);
void send_close_image(int r);
void handle_close_image(int r);
void finish(int r);
};
} // namespace image_replayer
} // namespace mirror
} // namespace rbd
extern template class rbd::mirror::image_replayer::OpenLocalImageRequest<librbd::ImageCtx>;
#endif // RBD_MIRROR_IMAGE_REPLAYER_OPEN_LOCAL_IMAGE_REQUEST_H
|
