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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be | 
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. | 
| 4 | 4 | 
| 5 #ifndef DEVICE_SERIAL_SERIAL_IO_HANDLER_WIN_H_ | 5 #ifndef DEVICE_SERIAL_SERIAL_IO_HANDLER_WIN_H_ | 
| 6 #define DEVICE_SERIAL_SERIAL_IO_HANDLER_WIN_H_ | 6 #define DEVICE_SERIAL_SERIAL_IO_HANDLER_WIN_H_ | 
| 7 | 7 | 
| 8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" | 
| 9 #include "base/message_loop/message_loop.h" | 9 #include "base/message_loop/message_loop.h" | 
| 10 #include "device/serial/serial_io_handler.h" | 10 #include "device/serial/serial_io_handler.h" | 
| 11 | 11 | 
| 12 namespace device { | 12 namespace device { | 
| 13 | 13 | 
| 14 class SerialIoHandlerWin : public SerialIoHandler, | 14 class SerialIoHandlerWin : public SerialIoHandler, | 
| 15                            public base::MessageLoopForIO::IOHandler { | 15                            public base::MessageLoopForIO::IOHandler { | 
| 16  protected: | 16  protected: | 
| 17   // SerialIoHandler implementation. | 17   // SerialIoHandler implementation. | 
| 18   virtual void ReadImpl() OVERRIDE; | 18   virtual void ReadImpl() override; | 
| 19   virtual void WriteImpl() OVERRIDE; | 19   virtual void WriteImpl() override; | 
| 20   virtual void CancelReadImpl() OVERRIDE; | 20   virtual void CancelReadImpl() override; | 
| 21   virtual void CancelWriteImpl() OVERRIDE; | 21   virtual void CancelWriteImpl() override; | 
| 22   virtual bool Flush() const OVERRIDE; | 22   virtual bool Flush() const override; | 
| 23   virtual serial::DeviceControlSignalsPtr GetControlSignals() const OVERRIDE; | 23   virtual serial::DeviceControlSignalsPtr GetControlSignals() const override; | 
| 24   virtual bool SetControlSignals( | 24   virtual bool SetControlSignals( | 
| 25       const serial::HostControlSignals& control_signals) OVERRIDE; | 25       const serial::HostControlSignals& control_signals) override; | 
| 26   virtual bool ConfigurePort(const serial::ConnectionOptions& options) OVERRIDE; | 26   virtual bool ConfigurePort(const serial::ConnectionOptions& options) override; | 
| 27   virtual serial::ConnectionInfoPtr GetPortInfo() const OVERRIDE; | 27   virtual serial::ConnectionInfoPtr GetPortInfo() const override; | 
| 28   virtual bool PostOpen() OVERRIDE; | 28   virtual bool PostOpen() override; | 
| 29 | 29 | 
| 30  private: | 30  private: | 
| 31   friend class SerialIoHandler; | 31   friend class SerialIoHandler; | 
| 32 | 32 | 
| 33   explicit SerialIoHandlerWin( | 33   explicit SerialIoHandlerWin( | 
| 34       scoped_refptr<base::MessageLoopProxy> file_thread_message_loop); | 34       scoped_refptr<base::MessageLoopProxy> file_thread_message_loop); | 
| 35   virtual ~SerialIoHandlerWin(); | 35   virtual ~SerialIoHandlerWin(); | 
| 36 | 36 | 
| 37   // base::MessageLoopForIO::IOHandler implementation. | 37   // base::MessageLoopForIO::IOHandler implementation. | 
| 38   virtual void OnIOCompleted(base::MessageLoopForIO::IOContext* context, | 38   virtual void OnIOCompleted(base::MessageLoopForIO::IOContext* context, | 
| 39                              DWORD bytes_transfered, | 39                              DWORD bytes_transfered, | 
| 40                              DWORD error) OVERRIDE; | 40                              DWORD error) override; | 
| 41 | 41 | 
| 42   // Context used for asynchronous WaitCommEvent calls. | 42   // Context used for asynchronous WaitCommEvent calls. | 
| 43   scoped_ptr<base::MessageLoopForIO::IOContext> comm_context_; | 43   scoped_ptr<base::MessageLoopForIO::IOContext> comm_context_; | 
| 44 | 44 | 
| 45   // Context used for overlapped reads. | 45   // Context used for overlapped reads. | 
| 46   scoped_ptr<base::MessageLoopForIO::IOContext> read_context_; | 46   scoped_ptr<base::MessageLoopForIO::IOContext> read_context_; | 
| 47 | 47 | 
| 48   // Context used for overlapped writes. | 48   // Context used for overlapped writes. | 
| 49   scoped_ptr<base::MessageLoopForIO::IOContext> write_context_; | 49   scoped_ptr<base::MessageLoopForIO::IOContext> write_context_; | 
| 50 | 50 | 
| 51   // Asynchronous event mask state | 51   // Asynchronous event mask state | 
| 52   DWORD event_mask_; | 52   DWORD event_mask_; | 
| 53 | 53 | 
| 54   // Indicates if a pending read is waiting on initial data arrival via | 54   // Indicates if a pending read is waiting on initial data arrival via | 
| 55   // WaitCommEvent, as opposed to waiting on actual ReadFile completion | 55   // WaitCommEvent, as opposed to waiting on actual ReadFile completion | 
| 56   // after a corresponding WaitCommEvent has completed. | 56   // after a corresponding WaitCommEvent has completed. | 
| 57   bool is_comm_pending_; | 57   bool is_comm_pending_; | 
| 58 | 58 | 
| 59   DISALLOW_COPY_AND_ASSIGN(SerialIoHandlerWin); | 59   DISALLOW_COPY_AND_ASSIGN(SerialIoHandlerWin); | 
| 60 }; | 60 }; | 
| 61 | 61 | 
| 62 }  // namespace device | 62 }  // namespace device | 
| 63 | 63 | 
| 64 #endif  // DEVICE_SERIAL_SERIAL_IO_HANDLER_WIN_H_ | 64 #endif  // DEVICE_SERIAL_SERIAL_IO_HANDLER_WIN_H_ | 
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