blob: 95d8224ae904a790504cd5416f8259761319d149 (
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
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "librbd/io/ImageDispatchSpec.h"
#include "librbd/ImageCtx.h"
#include "librbd/io/AioCompletion.h"
#include "librbd/io/ImageRequest.h"
#include "librbd/io/ImageDispatcherInterface.h"
#include <boost/variant.hpp>
namespace librbd {
namespace io {
void ImageDispatchSpec::C_Dispatcher::complete(int r) {
switch (image_dispatch_spec->dispatch_result) {
case DISPATCH_RESULT_RESTART:
ceph_assert(image_dispatch_spec->dispatch_layer != 0);
image_dispatch_spec->dispatch_layer = static_cast<ImageDispatchLayer>(
image_dispatch_spec->dispatch_layer - 1);
[[fallthrough]];
case DISPATCH_RESULT_CONTINUE:
if (r < 0) {
// bubble dispatch failure through AioCompletion
image_dispatch_spec->dispatch_result = DISPATCH_RESULT_COMPLETE;
image_dispatch_spec->fail(r);
return;
}
image_dispatch_spec->send();
break;
case DISPATCH_RESULT_COMPLETE:
finish(r);
break;
case DISPATCH_RESULT_INVALID:
ceph_abort();
break;
}
}
void ImageDispatchSpec::C_Dispatcher::finish(int r) {
delete image_dispatch_spec;
}
void ImageDispatchSpec::send() {
image_dispatcher->send(this);
}
void ImageDispatchSpec::fail(int r) {
dispatch_result = DISPATCH_RESULT_COMPLETE;
aio_comp->fail(r);
}
} // namespace io
} // namespace librbd
|
