Add a partial Mojo serial connection interface and implementation.

device/serial/test_serial_io_handler.cc

+// 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 "device/serial/test_serial_io_handler.h"
+
+#include "base/bind.h"
+#include "device/serial/serial.mojom.h"
+
+namespace device {
+
+TestSerialIoHandler::TestSerialIoHandler()
+    : SerialIoHandler(NULL),
+      opened_(false),
+      dtr_(false),
+      rts_(false),
+      flushes_(0) {
+}
+
+scoped_refptr<SerialIoHandler> TestSerialIoHandler::Create() {
+  return scoped_refptr<SerialIoHandler>(new TestSerialIoHandler);
+}
+
+void TestSerialIoHandler::Open(const std::string& port,
+                               const OpenCompleteCallback& callback) {
+  DCHECK(!opened_);
+  opened_ = true;
+  callback.Run(true);
+}
+
+bool TestSerialIoHandler::ConfigurePort(
+    const serial::ConnectionOptions& options) {
+  if (options.bitrate)
+    info_.bitrate = options.bitrate;
+  if (options.data_bits != serial::DATA_BITS_NONE)
+    info_.data_bits = options.data_bits;
+  if (options.parity_bit != serial::PARITY_BIT_NONE)
+    info_.parity_bit = options.parity_bit;
+  if (options.stop_bits != serial::STOP_BITS_NONE)
+    info_.stop_bits = options.stop_bits;
+  if (options.has_cts_flow_control)
+    info_.cts_flow_control = options.cts_flow_control;
+  return true;
+}
+
+void TestSerialIoHandler::ReadImpl() {
+}
+
+void TestSerialIoHandler::CancelReadImpl() {
+  QueueReadCompleted(0, read_cancel_reason());
+}
+
+void TestSerialIoHandler::WriteImpl() {
+  DCHECK(pending_read_buffer());
+  DCHECK_LE(pending_write_buffer_len(), pending_read_buffer_len());
+  memcpy(pending_read_buffer()->data(),
+         pending_write_buffer()->data(),
+         pending_write_buffer_len());
+  QueueReadCompleted(pending_write_buffer_len(), serial::RECEIVE_ERROR_NONE);
+  QueueWriteCompleted(pending_write_buffer_len(), serial::SEND_ERROR_NONE);
+}
+
+void TestSerialIoHandler::CancelWriteImpl() {
+  QueueWriteCompleted(0, write_cancel_reason());
+}
+
+serial::DeviceControlSignalsPtr TestSerialIoHandler::GetControlSignals() const {
+  serial::DeviceControlSignalsPtr signals(serial::DeviceControlSignals::New());
+  *signals = device_control_signals_;
+  return signals.Pass();
+}
+
+serial::ConnectionInfoPtr TestSerialIoHandler::GetPortInfo() const {
+  serial::ConnectionInfoPtr info(serial::ConnectionInfo::New());
+  *info = info_;
+  return info.Pass();
+}
+
+bool TestSerialIoHandler::Flush() const {
+  flushes_++;
+  return true;
+}
+
+bool TestSerialIoHandler::SetControlSignals(
+    const serial::HostControlSignals& signals) {
+  if (signals.has_dtr)
+    dtr_ = signals.dtr;
+  if (signals.has_rts)
+    rts_ = signals.rts;
+  return true;
+}
+
+TestSerialIoHandler::~TestSerialIoHandler() {
+}
+
+}  // namespace device