| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef GARNET_BIN_KTRACE_PROVIDER_DEVICE_READER_H_ |
| #define GARNET_BIN_KTRACE_PROVIDER_DEVICE_READER_H_ |
| |
| #include <src/lib/files/unique_fd.h> |
| #include <src/lib/fxl/macros.h> |
| |
| #include "garnet/bin/ktrace_provider/reader.h" |
| |
| namespace ktrace_provider { |
| |
| class DeviceReader : public Reader { |
| public: |
| DeviceReader(); |
| |
| private: |
| static constexpr size_t kChunkSize{16 * 4 * 1024}; |
| |
| void ReadMoreData() override; |
| |
| fxl::UniqueFD fd_; |
| |
| char buffer_[kChunkSize]; |
| |
| FXL_DISALLOW_COPY_AND_ASSIGN(DeviceReader); |
| }; |
| |
| } // namespace ktrace_provider |
| |
| #endif // GARNET_BIN_KTRACE_PROVIDER_DEVICE_READER_H_ |