1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_NULL_DELEGATE_H_ 18 #define INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_NULL_DELEGATE_H_ 19 20 #include <memory> 21 #include <vector> 22 23 #include "perfetto/base/logging.h" 24 #include "perfetto/protozero/contiguous_memory_range.h" 25 #include "perfetto/protozero/scattered_stream_writer.h" 26 27 namespace protozero { 28 29 class ScatteredStreamWriterNullDelegate 30 : public ScatteredStreamWriter::Delegate { 31 public: 32 explicit ScatteredStreamWriterNullDelegate(size_t chunk_size); 33 ~ScatteredStreamWriterNullDelegate() override; 34 35 // protozero::ScatteredStreamWriter::Delegate implementation. 36 ContiguousMemoryRange GetNewBuffer() override; 37 38 private: 39 const size_t chunk_size_; 40 std::unique_ptr<uint8_t[]> chunk_; 41 }; 42 43 } // namespace protozero 44 45 #endif // INCLUDE_PERFETTO_PROTOZERO_SCATTERED_STREAM_NULL_DELEGATE_H_ 46