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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 #include "device/serial/data_sink_receiver.h" | 5 #include "device/serial/data_sink_receiver.h" |
| 6 | 6 |
| 7 #include <limits> | 7 #include <limits> |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "device/serial/async_waiter.h" | 10 #include "device/serial/async_waiter.h" |
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| 42 class DataSinkReceiver::Buffer : public ReadOnlyBuffer { | 42 class DataSinkReceiver::Buffer : public ReadOnlyBuffer { |
| 43 public: | 43 public: |
| 44 Buffer(scoped_refptr<DataSinkReceiver> receiver, | 44 Buffer(scoped_refptr<DataSinkReceiver> receiver, |
| 45 const char* buffer, | 45 const char* buffer, |
| 46 uint32_t buffer_size); | 46 uint32_t buffer_size); |
| 47 virtual ~Buffer(); | 47 virtual ~Buffer(); |
| 48 | 48 |
| 49 void Cancel(int32_t error); | 49 void Cancel(int32_t error); |
| 50 | 50 |
| 51 // ReadOnlyBuffer overrides. | 51 // ReadOnlyBuffer overrides. |
| 52 virtual const char* GetData() OVERRIDE; | 52 virtual const char* GetData() override; |
| 53 virtual uint32_t GetSize() OVERRIDE; | 53 virtual uint32_t GetSize() override; |
| 54 virtual void Done(uint32_t bytes_read) OVERRIDE; | 54 virtual void Done(uint32_t bytes_read) override; |
| 55 virtual void DoneWithError(uint32_t bytes_read, int32_t error) OVERRIDE; | 55 virtual void DoneWithError(uint32_t bytes_read, int32_t error) override; |
| 56 | 56 |
| 57 private: | 57 private: |
| 58 // The DataSinkReceiver whose data pipe we are providing a view. | 58 // The DataSinkReceiver whose data pipe we are providing a view. |
| 59 scoped_refptr<DataSinkReceiver> receiver_; | 59 scoped_refptr<DataSinkReceiver> receiver_; |
| 60 | 60 |
| 61 const char* buffer_; | 61 const char* buffer_; |
| 62 uint32_t buffer_size_; | 62 uint32_t buffer_size_; |
| 63 | 63 |
| 64 // Whether this receive has been cancelled. | 64 // Whether this receive has been cancelled. |
| 65 bool cancelled_; | 65 bool cancelled_; |
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| 297 MojoResult result = | 297 MojoResult result = |
| 298 mojo::ReadDataRaw(handle, NULL, &num_bytes, MOJO_READ_DATA_FLAG_DISCARD); | 298 mojo::ReadDataRaw(handle, NULL, &num_bytes, MOJO_READ_DATA_FLAG_DISCARD); |
| 299 if (result != MOJO_RESULT_OK) | 299 if (result != MOJO_RESULT_OK) |
| 300 return result; | 300 return result; |
| 301 DCHECK(num_bytes <= bytes_to_flush_); | 301 DCHECK(num_bytes <= bytes_to_flush_); |
| 302 bytes_to_flush_ -= num_bytes; | 302 bytes_to_flush_ -= num_bytes; |
| 303 return bytes_to_flush_ == 0 ? MOJO_RESULT_OK : MOJO_RESULT_SHOULD_WAIT; | 303 return bytes_to_flush_ == 0 ? MOJO_RESULT_OK : MOJO_RESULT_SHOULD_WAIT; |
| 304 } | 304 } |
| 305 | 305 |
| 306 } // namespace device | 306 } // namespace device |
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