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
|
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_SOCKET_TRANSPORT_CONNECT_SUB_JOB_H_
#define NET_SOCKET_TRANSPORT_CONNECT_SUB_JOB_H_
#include <stddef.h>
#include <memory>
#include <utility>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "net/base/address_list.h"
#include "net/base/load_states.h"
#include "net/socket/transport_connect_job.h"
#include "net/socket/websocket_endpoint_lock_manager.h"
namespace net {
class IPEndPoint;
class StreamSocket;
// Attempts to connect to a subset of the addresses required by a
// TransportConnectJob, specifically either the IPv4 or IPv6 addresses. Each
// address is tried in turn, and parent_job->OnSubJobComplete() is called when
// the first address succeeds or the last address fails.
class TransportConnectSubJob : public WebSocketEndpointLockManager::Waiter {
public:
using SubJobType = TransportConnectJob::SubJobType;
TransportConnectSubJob(std::vector<IPEndPoint> addresses,
TransportConnectJob* parent_job,
SubJobType type);
TransportConnectSubJob(const TransportConnectSubJob&) = delete;
TransportConnectSubJob& operator=(const TransportConnectSubJob&) = delete;
~TransportConnectSubJob() override;
// Start connecting.
int Start();
bool started() { return next_state_ != STATE_NONE; }
LoadState GetLoadState() const;
SubJobType type() const { return type_; }
std::unique_ptr<StreamSocket> PassSocket() {
return std::move(transport_socket_);
}
// Implementation of WebSocketEndpointLockManager::EndpointWaiter.
void GotEndpointLock() override;
private:
enum State {
STATE_NONE,
STATE_OBTAIN_LOCK,
STATE_OBTAIN_LOCK_COMPLETE,
STATE_TRANSPORT_CONNECT_COMPLETE,
STATE_DONE,
};
const IPEndPoint& CurrentAddress() const;
void OnIOComplete(int result);
int DoLoop(int result);
int DoEndpointLock();
int DoEndpointLockComplete();
int DoTransportConnectComplete(int result);
const raw_ptr<TransportConnectJob> parent_job_;
std::vector<IPEndPoint> addresses_;
size_t current_address_index_ = 0;
State next_state_ = STATE_NONE;
const SubJobType type_;
std::unique_ptr<StreamSocket> transport_socket_;
};
} // namespace net
#endif // NET_SOCKET_TRANSPORT_CONNECT_SUB_JOB_H_
|
