| // 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. |
| |
| #include "remoting/protocol/fake_stream_socket.h" |
| |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/callback_helpers.h" |
| #include "base/location.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "net/base/address_list.h" |
| #include "net/base/io_buffer.h" |
| #include "net/base/net_errors.h" |
| #include "net/traffic_annotation/network_traffic_annotation.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace remoting { |
| namespace protocol { |
| |
| FakeStreamSocket::FakeStreamSocket() |
| : task_runner_(base::ThreadTaskRunnerHandle::Get()), weak_factory_(this) {} |
| |
| FakeStreamSocket::~FakeStreamSocket() { |
| EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| if (peer_socket_) { |
| task_runner_->PostTask( |
| FROM_HERE, base::Bind(&FakeStreamSocket::SetReadError, peer_socket_, |
| net::ERR_CONNECTION_CLOSED)); |
| } |
| } |
| |
| void FakeStreamSocket::AppendInputData(const std::string& data) { |
| EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| input_data_.insert(input_data_.end(), data.begin(), data.end()); |
| // Complete pending read if any. |
| if (!read_callback_.is_null()) { |
| int result = std::min(read_buffer_size_, |
| static_cast<int>(input_data_.size() - input_pos_)); |
| EXPECT_GT(result, 0); |
| memcpy(read_buffer_->data(), |
| &(*input_data_.begin()) + input_pos_, result); |
| input_pos_ += result; |
| read_buffer_ = nullptr; |
| |
| std::move(read_callback_).Run(result); |
| } |
| } |
| |
| void FakeStreamSocket::SetReadError(int error) { |
| EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| // Complete pending read if any. |
| if (!read_callback_.is_null()) { |
| std::move(read_callback_).Run(error); |
| } else { |
| next_read_error_ = error; |
| } |
| } |
| |
| void FakeStreamSocket::PairWith(FakeStreamSocket* peer_socket) { |
| EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| peer_socket_ = peer_socket->GetWeakPtr(); |
| peer_socket->peer_socket_ = GetWeakPtr(); |
| } |
| |
| base::WeakPtr<FakeStreamSocket> FakeStreamSocket::GetWeakPtr() { |
| return weak_factory_.GetWeakPtr(); |
| } |
| |
| int FakeStreamSocket::Read(const scoped_refptr<net::IOBuffer>& buf, |
| int buf_len, |
| net::CompletionOnceCallback callback) { |
| EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| |
| if (input_pos_ < static_cast<int>(input_data_.size())) { |
| int result = std::min(buf_len, |
| static_cast<int>(input_data_.size()) - input_pos_); |
| memcpy(buf->data(), &(*input_data_.begin()) + input_pos_, result); |
| input_pos_ += result; |
| return result; |
| } else if (next_read_error_.has_value()) { |
| int r = next_read_error_.value(); |
| next_read_error_.reset(); |
| return r; |
| } else { |
| read_buffer_ = buf; |
| read_buffer_size_ = buf_len; |
| read_callback_ = std::move(callback); |
| return net::ERR_IO_PENDING; |
| } |
| } |
| |
| int FakeStreamSocket::Write( |
| const scoped_refptr<net::IOBuffer>& buf, |
| int buf_len, |
| net::CompletionOnceCallback callback, |
| const net::NetworkTrafficAnnotationTag& traffic_annotation) { |
| EXPECT_TRUE(task_runner_->BelongsToCurrentThread()); |
| EXPECT_FALSE(write_pending_); |
| |
| if (write_limit_ > 0) |
| buf_len = std::min(write_limit_, buf_len); |
| |
| if (async_write_) { |
| task_runner_->PostTask( |
| FROM_HERE, base::BindOnce(&FakeStreamSocket::DoAsyncWrite, |
| weak_factory_.GetWeakPtr(), |
| scoped_refptr<net::IOBuffer>(buf), buf_len, |
| std::move(callback))); |
| write_pending_ = true; |
| return net::ERR_IO_PENDING; |
| } else { |
| if (next_write_error_ != net::OK) { |
| int r = next_write_error_; |
| next_write_error_ = net::OK; |
| return r; |
| } |
| |
| DoWrite(buf, buf_len); |
| return buf_len; |
| } |
| } |
| |
| void FakeStreamSocket::DoAsyncWrite(const scoped_refptr<net::IOBuffer>& buf, |
| int buf_len, |
| net::CompletionOnceCallback callback) { |
| write_pending_ = false; |
| |
| if (next_write_error_ != net::OK) { |
| int r = next_write_error_; |
| next_write_error_ = net::OK; |
| std::move(callback).Run(r); |
| return; |
| } |
| |
| DoWrite(buf.get(), buf_len); |
| std::move(callback).Run(buf_len); |
| } |
| |
| void FakeStreamSocket::DoWrite(const scoped_refptr<net::IOBuffer>& buf, |
| int buf_len) { |
| written_data_.insert(written_data_.end(), |
| buf->data(), buf->data() + buf_len); |
| |
| if (peer_socket_) { |
| task_runner_->PostTask( |
| FROM_HERE, |
| base::Bind(&FakeStreamSocket::AppendInputData, |
| peer_socket_, |
| std::string(buf->data(), buf->data() + buf_len))); |
| } |
| } |
| |
| FakeStreamChannelFactory::FakeStreamChannelFactory() |
| : task_runner_(base::ThreadTaskRunnerHandle::Get()), |
| weak_factory_(this) { |
| } |
| |
| FakeStreamChannelFactory::~FakeStreamChannelFactory() = default; |
| |
| FakeStreamSocket* FakeStreamChannelFactory::GetFakeChannel( |
| const std::string& name) { |
| return channels_[name].get(); |
| } |
| |
| void FakeStreamChannelFactory::PairWith( |
| FakeStreamChannelFactory* peer_factory) { |
| peer_factory_ = peer_factory->weak_factory_.GetWeakPtr(); |
| peer_factory->peer_factory_ = weak_factory_.GetWeakPtr(); |
| } |
| |
| void FakeStreamChannelFactory::CreateChannel( |
| const std::string& name, |
| const ChannelCreatedCallback& callback) { |
| std::unique_ptr<FakeStreamSocket> channel(new FakeStreamSocket()); |
| channels_[name] = channel->GetWeakPtr(); |
| channel->set_async_write(async_write_); |
| |
| if (peer_factory_) { |
| FakeStreamSocket* peer_channel = peer_factory_->GetFakeChannel(name); |
| if (peer_channel) |
| channel->PairWith(peer_channel); |
| } |
| |
| if (fail_create_) |
| channel.reset(); |
| |
| if (asynchronous_create_) { |
| task_runner_->PostTask(FROM_HERE, base::Bind( |
| &FakeStreamChannelFactory::NotifyChannelCreated, |
| weak_factory_.GetWeakPtr(), base::Passed(&channel), name, callback)); |
| } else { |
| NotifyChannelCreated(std::move(channel), name, callback); |
| } |
| } |
| |
| void FakeStreamChannelFactory::NotifyChannelCreated( |
| std::unique_ptr<FakeStreamSocket> owned_channel, |
| const std::string& name, |
| const ChannelCreatedCallback& callback) { |
| if (channels_.find(name) != channels_.end()) |
| callback.Run(std::move(owned_channel)); |
| } |
| |
| void FakeStreamChannelFactory::CancelChannelCreation(const std::string& name) { |
| channels_.erase(name); |
| } |
| |
| } // namespace protocol |
| } // namespace remoting |