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// Copyright 2014 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.
#ifndef NET_SOCKET_WEBSOCKET_TRANSPORT_CONNECT_SUB_JOB_H_
#define NET_SOCKET_WEBSOCKET_TRANSPORT_CONNECT_SUB_JOB_H_
#include <stddef.h>
#include <utility>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "net/base/address_list.h"
#include "net/base/load_states.h"
#include "net/socket/websocket_endpoint_lock_manager.h"
#include "net/socket/websocket_transport_client_socket_pool.h"
namespace net {
class BoundNetLog;
class ClientSocketFactory;
class IPEndPoint;
class StreamSocket;
// Attempts to connect to a subset of the addresses required by a
// WebSocketTransportConnectJob, 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 WebSocketTransportConnectSubJob
: public WebSocketEndpointLockManager::Waiter {
public:
typedef WebSocketTransportConnectJob::SubJobType SubJobType;
WebSocketTransportConnectSubJob(const AddressList& addresses,
WebSocketTransportConnectJob* parent_job,
SubJobType type);
~WebSocketTransportConnectSubJob() override;
// Start connecting.
int Start();
bool started() { return next_state_ != STATE_NONE; }
LoadState GetLoadState() const;
SubJobType type() const { return type_; }
scoped_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,
STATE_TRANSPORT_CONNECT_COMPLETE,
STATE_DONE,
};
ClientSocketFactory* client_socket_factory() const;
const BoundNetLog& net_log() const;
const IPEndPoint& CurrentAddress() const;
void OnIOComplete(int result);
int DoLoop(int result);
int DoEndpointLock();
int DoEndpointLockComplete();
int DoTransportConnect();
int DoTransportConnectComplete(int result);
WebSocketTransportConnectJob* const parent_job_;
const AddressList addresses_;
size_t current_address_index_;
State next_state_;
const SubJobType type_;
scoped_ptr<StreamSocket> transport_socket_;
DISALLOW_COPY_AND_ASSIGN(WebSocketTransportConnectSubJob);
};
} // namespace net
#endif // NET_SOCKET_WEBSOCKET_TRANSPORT_CONNECT_SUB_JOB_H_
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