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
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "tools/android/forwarder2/forwarders_manager.h"
#include <algorithm>
#include "base/basictypes.h"
#include "base/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/message_loop/message_loop_proxy.h"
#include "tools/android/forwarder2/forwarder.h"
#include "tools/android/forwarder2/socket.h"
namespace forwarder2 {
ForwardersManager::ForwardersManager() : delegate_(new Delegate()) {}
ForwardersManager::~ForwardersManager() {
delegate_->Clear();
}
void ForwardersManager::CreateAndStartNewForwarder(scoped_ptr<Socket> socket1,
scoped_ptr<Socket> socket2) {
delegate_->CreateAndStartNewForwarder(socket1.Pass(), socket2.Pass());
}
ForwardersManager::Delegate::Delegate() {}
ForwardersManager::Delegate::~Delegate() {
// The forwarder instances should already have been deleted on their
// construction thread. Deleting them here would be unsafe since we don't know
// which thread this destructor is called on.
DCHECK(forwarders_.empty());
}
void ForwardersManager::Delegate::Clear() {
if (!forwarders_constructor_runner_) {
DCHECK(forwarders_.empty());
return;
}
if (forwarders_constructor_runner_->RunsTasksOnCurrentThread()) {
ClearOnForwarderConstructorThread();
return;
}
forwarders_constructor_runner_->PostTask(
FROM_HERE,
base::Bind(
&ForwardersManager::Delegate::ClearOnForwarderConstructorThread,
this));
}
void ForwardersManager::Delegate::CreateAndStartNewForwarder(
scoped_ptr<Socket> socket1,
scoped_ptr<Socket> socket2) {
const scoped_refptr<base::SingleThreadTaskRunner> current_task_runner(
base::MessageLoopProxy::current());
DCHECK(current_task_runner);
if (forwarders_constructor_runner_) {
DCHECK_EQ(current_task_runner, forwarders_constructor_runner_);
} else {
forwarders_constructor_runner_ = current_task_runner;
}
forwarders_.push_back(
new Forwarder(socket1.Pass(), socket2.Pass(),
&deletion_notifier_,
base::Bind(&ForwardersManager::Delegate::OnForwarderError,
this)));
forwarders_.back()->Start();
}
void ForwardersManager::Delegate::OnForwarderError(
scoped_ptr<Forwarder> forwarder) {
DCHECK(forwarders_constructor_runner_->RunsTasksOnCurrentThread());
const ScopedVector<Forwarder>::iterator it = std::find(
forwarders_.begin(), forwarders_.end(), forwarder.get());
DCHECK(it != forwarders_.end());
std::swap(*it, forwarders_.back());
forwarders_.pop_back();
ignore_result(forwarder.release()); // Deleted by the pop_back() above.
}
void ForwardersManager::Delegate::ClearOnForwarderConstructorThread() {
DCHECK(forwarders_constructor_runner_->RunsTasksOnCurrentThread());
deletion_notifier_.Notify();
forwarders_.clear();
}
} // namespace forwarder2
|
