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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_source_sender.h" | 5 #include "device/serial/data_source_sender.h" |
| 6 | 6 |
| 7 #include <algorithm> | 7 #include <algorithm> |
| 8 #include <limits> | 8 #include <limits> |
| 9 #include <memory> |
| 9 #include <utility> | 10 #include <utility> |
| 10 | 11 |
| 11 #include "base/bind.h" | 12 #include "base/bind.h" |
| 12 #include "base/message_loop/message_loop.h" | 13 #include "base/message_loop/message_loop.h" |
| 13 | 14 |
| 14 namespace device { | 15 namespace device { |
| 15 | 16 |
| 16 // Represents a send that is not yet fulfilled. | 17 // Represents a send that is not yet fulfilled. |
| 17 class DataSourceSender::PendingSend { | 18 class DataSourceSender::PendingSend { |
| 18 public: | 19 public: |
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| 179 DataSourceSender::PendingSend::PendingSend(DataSourceSender* sender, | 180 DataSourceSender::PendingSend::PendingSend(DataSourceSender* sender, |
| 180 const ReadyCallback& callback) | 181 const ReadyCallback& callback) |
| 181 : sender_(sender), callback_(callback), buffer_in_use_(false) { | 182 : sender_(sender), callback_(callback), buffer_in_use_(false) { |
| 182 } | 183 } |
| 183 | 184 |
| 184 void DataSourceSender::PendingSend::GetData(uint32_t num_bytes) { | 185 void DataSourceSender::PendingSend::GetData(uint32_t num_bytes) { |
| 185 DCHECK(num_bytes); | 186 DCHECK(num_bytes); |
| 186 DCHECK(!buffer_in_use_); | 187 DCHECK(!buffer_in_use_); |
| 187 buffer_in_use_ = true; | 188 buffer_in_use_ = true; |
| 188 data_.resize(num_bytes); | 189 data_.resize(num_bytes); |
| 189 callback_.Run(scoped_ptr<WritableBuffer>( | 190 callback_.Run(std::unique_ptr<WritableBuffer>( |
| 190 new Buffer(sender_, this, &data_[0], num_bytes))); | 191 new Buffer(sender_, this, &data_[0], num_bytes))); |
| 191 } | 192 } |
| 192 | 193 |
| 193 void DataSourceSender::PendingSend::Done(uint32_t bytes_written) { | 194 void DataSourceSender::PendingSend::Done(uint32_t bytes_written) { |
| 194 DCHECK(buffer_in_use_); | 195 DCHECK(buffer_in_use_); |
| 195 DCHECK_LE(bytes_written, data_.size()); | 196 DCHECK_LE(bytes_written, data_.size()); |
| 196 buffer_in_use_ = false; | 197 buffer_in_use_ = false; |
| 197 data_.resize(bytes_written); | 198 data_.resize(bytes_written); |
| 198 sender_->Done(data_); | 199 sender_->Done(data_); |
| 199 } | 200 } |
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| 243 uint32_t bytes_written, | 244 uint32_t bytes_written, |
| 244 int32_t error) { | 245 int32_t error) { |
| 245 DCHECK(sender_.get()); | 246 DCHECK(sender_.get()); |
| 246 PendingSend* send = pending_send_; | 247 PendingSend* send = pending_send_; |
| 247 pending_send_ = nullptr; | 248 pending_send_ = nullptr; |
| 248 send->DoneWithError(bytes_written, error); | 249 send->DoneWithError(bytes_written, error); |
| 249 sender_ = nullptr; | 250 sender_ = nullptr; |
| 250 } | 251 } |
| 251 | 252 |
| 252 } // namespace device | 253 } // namespace device |
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