forked from rsocket/rsocket-cpp
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathConnectionSet.cpp
More file actions
108 lines (85 loc) · 2.82 KB
/
ConnectionSet.cpp
File metadata and controls
108 lines (85 loc) · 2.82 KB
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
// Copyright (c) Facebook, Inc. and its affiliates.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "rsocket/internal/ConnectionSet.h"
#include "rsocket/statemachine/RSocketStateMachine.h"
#include <folly/io/async/EventBase.h>
namespace rsocket {
ConnectionSet::ConnectionSet() {}
ConnectionSet::~ConnectionSet() {
if (!shutDown_) {
shutdownAndWait();
}
}
void ConnectionSet::shutdownAndWait() {
VLOG(1) << "Started ConnectionSet::shutdownAndWait";
shutDown_ = true;
SCOPE_EXIT {
VLOG(1) << "Finished ConnectionSet::shutdownAndWait";
};
StateMachineMap map;
// Move all the connections out of the synchronized map so we don't block
// while closing the state machines.
{
const auto locked = machines_.lock();
if (locked->empty()) {
VLOG(2) << "No connections to close, early exit";
return;
}
targetRemoves_ = removes_ + locked->size();
map.swap(*locked);
}
VLOG(2) << "Need to close " << map.size() << " connections";
for (auto& kv : map) {
auto rsocket = std::move(kv.first);
auto evb = kv.second;
const auto close = [rs = std::move(rsocket)] {
rs->close({}, StreamCompletionSignal::SOCKET_CLOSED);
};
// We could be closing on the same thread as the state machine. In that
// case, close the state machine inline, otherwise we hang.
if (evb->isInEventBaseThread()) {
VLOG(3) << "Closing connection inline";
close();
} else {
VLOG(3) << "Closing connection asynchronously";
evb->runInEventBaseThread(close);
}
}
VLOG(2) << "Waiting for connections to close";
shutdownDone_.wait();
VLOG(2) << "Connections have closed";
}
bool ConnectionSet::insert(
std::shared_ptr<RSocketStateMachine> machine,
folly::EventBase* evb) {
VLOG(4) << "insert(" << machine.get() << ", " << evb << ")";
if (shutDown_) {
return false;
}
machines_.lock()->emplace(std::move(machine), evb);
return true;
}
void ConnectionSet::remove(RSocketStateMachine& machine) {
VLOG(4) << "remove(" << &machine << ")";
const auto locked = machines_.lock();
auto const result = locked->erase(machine.shared_from_this());
DCHECK_LE(result, 1);
if (++removes_ == targetRemoves_) {
shutdownDone_.post();
}
}
size_t ConnectionSet::size() const {
return machines_.lock()->size();
}
} // namespace rsocket