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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "remoting/protocol/fake_datagram_socket.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 #include "base/single_thread_task_runner.h" |
| 9 #include "base/thread_task_runner_handle.h" |
| 10 #include "net/base/address_list.h" |
| 11 #include "net/base/io_buffer.h" |
| 12 #include "net/base/net_errors.h" |
| 13 #include "net/base/net_util.h" |
| 14 #include "testing/gtest/include/gtest/gtest.h" |
| 15 |
| 16 namespace remoting { |
| 17 namespace protocol { |
| 18 |
| 19 FakeDatagramSocket::FakeDatagramSocket() |
| 20 : input_pos_(0), |
| 21 task_runner_(base::ThreadTaskRunnerHandle::Get()), |
| 22 weak_factory_(this) { |
| 23 } |
| 24 |
| 25 FakeDatagramSocket::~FakeDatagramSocket() { |
| 26 EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| 27 } |
| 28 |
| 29 void FakeDatagramSocket::AppendInputPacket(const std::string& data) { |
| 30 EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| 31 input_packets_.push_back(data); |
| 32 |
| 33 // Complete pending read if any. |
| 34 if (!read_callback_.is_null()) { |
| 35 DCHECK_EQ(input_pos_, static_cast<int>(input_packets_.size()) - 1); |
| 36 int result = CopyReadData(read_buffer_.get(), read_buffer_size_); |
| 37 read_buffer_ = NULL; |
| 38 |
| 39 net::CompletionCallback callback = read_callback_; |
| 40 read_callback_.Reset(); |
| 41 callback.Run(result); |
| 42 } |
| 43 } |
| 44 |
| 45 void FakeDatagramSocket::PairWith(FakeDatagramSocket* peer_socket) { |
| 46 EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| 47 peer_socket_ = peer_socket->GetWeakPtr(); |
| 48 peer_socket->peer_socket_ = GetWeakPtr(); |
| 49 } |
| 50 |
| 51 base::WeakPtr<FakeDatagramSocket> FakeDatagramSocket::GetWeakPtr() { |
| 52 return weak_factory_.GetWeakPtr(); |
| 53 } |
| 54 |
| 55 int FakeDatagramSocket::Read(net::IOBuffer* buf, int buf_len, |
| 56 const net::CompletionCallback& callback) { |
| 57 EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| 58 if (input_pos_ < static_cast<int>(input_packets_.size())) { |
| 59 return CopyReadData(buf, buf_len); |
| 60 } else { |
| 61 read_buffer_ = buf; |
| 62 read_buffer_size_ = buf_len; |
| 63 read_callback_ = callback; |
| 64 return net::ERR_IO_PENDING; |
| 65 } |
| 66 } |
| 67 |
| 68 int FakeDatagramSocket::Write(net::IOBuffer* buf, int buf_len, |
| 69 const net::CompletionCallback& callback) { |
| 70 EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| 71 written_packets_.push_back(std::string()); |
| 72 written_packets_.back().assign(buf->data(), buf->data() + buf_len); |
| 73 |
| 74 if (peer_socket_.get()) { |
| 75 task_runner_->PostTask( |
| 76 FROM_HERE, |
| 77 base::Bind(&FakeDatagramSocket::AppendInputPacket, |
| 78 peer_socket_, |
| 79 std::string(buf->data(), buf->data() + buf_len))); |
| 80 } |
| 81 |
| 82 return buf_len; |
| 83 } |
| 84 |
| 85 int FakeDatagramSocket::SetReceiveBufferSize(int32 size) { |
| 86 NOTIMPLEMENTED(); |
| 87 return net::ERR_NOT_IMPLEMENTED; |
| 88 } |
| 89 |
| 90 int FakeDatagramSocket::SetSendBufferSize(int32 size) { |
| 91 NOTIMPLEMENTED(); |
| 92 return net::ERR_NOT_IMPLEMENTED; |
| 93 } |
| 94 |
| 95 int FakeDatagramSocket::CopyReadData(net::IOBuffer* buf, int buf_len) { |
| 96 int size = std::min( |
| 97 buf_len, static_cast<int>(input_packets_[input_pos_].size())); |
| 98 memcpy(buf->data(), &(*input_packets_[input_pos_].begin()), size); |
| 99 ++input_pos_; |
| 100 return size; |
| 101 } |
| 102 |
| 103 FakeDatagramChannelFactory::FakeDatagramChannelFactory() |
| 104 : task_runner_(base::ThreadTaskRunnerHandle::Get()), |
| 105 asynchronous_create_(false), |
| 106 fail_create_(false), |
| 107 weak_factory_(this) { |
| 108 } |
| 109 |
| 110 FakeDatagramChannelFactory::~FakeDatagramChannelFactory() { |
| 111 for (ChannelsMap::iterator it = channels_.begin(); it != channels_.end(); |
| 112 ++it) { |
| 113 EXPECT_TRUE(it->second == NULL); |
| 114 } |
| 115 } |
| 116 |
| 117 void FakeDatagramChannelFactory::PairWith( |
| 118 FakeDatagramChannelFactory* peer_factory) { |
| 119 peer_factory_ = peer_factory->weak_factory_.GetWeakPtr(); |
| 120 peer_factory_->peer_factory_ = weak_factory_.GetWeakPtr(); |
| 121 } |
| 122 |
| 123 FakeDatagramSocket* FakeDatagramChannelFactory::GetFakeChannel( |
| 124 const std::string& name) { |
| 125 return channels_[name].get(); |
| 126 } |
| 127 |
| 128 void FakeDatagramChannelFactory::CreateChannel( |
| 129 const std::string& name, |
| 130 const ChannelCreatedCallback& callback) { |
| 131 EXPECT_TRUE(channels_[name] == NULL); |
| 132 |
| 133 scoped_ptr<FakeDatagramSocket> channel(new FakeDatagramSocket()); |
| 134 channels_[name] = channel->GetWeakPtr(); |
| 135 |
| 136 if (peer_factory_) { |
| 137 FakeDatagramSocket* peer_socket = peer_factory_->GetFakeChannel(name); |
| 138 if (peer_socket) |
| 139 channel->PairWith(peer_socket); |
| 140 } |
| 141 |
| 142 if (fail_create_) |
| 143 channel.reset(); |
| 144 |
| 145 if (asynchronous_create_) { |
| 146 task_runner_->PostTask( |
| 147 FROM_HERE, |
| 148 base::Bind(&FakeDatagramChannelFactory::NotifyChannelCreated, |
| 149 weak_factory_.GetWeakPtr(), base::Passed(&channel), |
| 150 name, callback)); |
| 151 } else { |
| 152 NotifyChannelCreated(channel.Pass(), name, callback); |
| 153 } |
| 154 } |
| 155 |
| 156 void FakeDatagramChannelFactory::NotifyChannelCreated( |
| 157 scoped_ptr<FakeDatagramSocket> owned_socket, |
| 158 const std::string& name, |
| 159 const ChannelCreatedCallback& callback) { |
| 160 if (channels_.find(name) != channels_.end()) |
| 161 callback.Run(owned_socket.PassAs<net::Socket>()); |
| 162 } |
| 163 |
| 164 void FakeDatagramChannelFactory::CancelChannelCreation( |
| 165 const std::string& name) { |
| 166 channels_.erase(name); |
| 167 } |
| 168 |
| 169 } // namespace protocol |
| 170 } // namespace remoting |
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