1 /* 2 * Copyright (C) 2019 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 SRC_TRACE_PROCESSOR_IMPORTERS_GZIP_GZIP_TRACE_PARSER_H_ 18 #define SRC_TRACE_PROCESSOR_IMPORTERS_GZIP_GZIP_TRACE_PARSER_H_ 19 20 #include "src/trace_processor/importers/common/chunked_trace_reader.h" 21 #include "src/trace_processor/util/gzip_utils.h" 22 23 namespace perfetto { 24 namespace trace_processor { 25 26 class TraceProcessorContext; 27 28 class GzipTraceParser : public ChunkedTraceReader { 29 public: 30 explicit GzipTraceParser(TraceProcessorContext*); 31 explicit GzipTraceParser(std::unique_ptr<ChunkedTraceReader>); 32 ~GzipTraceParser() override; 33 34 // ChunkedTraceReader implementation 35 util::Status Parse(TraceBlobView) override; 36 void NotifyEndOfFile() override; 37 38 util::Status ParseUnowned(const uint8_t*, size_t); 39 needs_more_input()40 bool needs_more_input() const { return needs_more_input_; } 41 42 private: 43 TraceProcessorContext* const context_; 44 util::GzipDecompressor decompressor_; 45 std::unique_ptr<ChunkedTraceReader> inner_; 46 47 std::unique_ptr<uint8_t[]> buffer_; 48 size_t bytes_written_ = 0; 49 50 bool first_chunk_parsed_ = false; 51 bool needs_more_input_ = false; 52 }; 53 54 } // namespace trace_processor 55 } // namespace perfetto 56 57 #endif // SRC_TRACE_PROCESSOR_IMPORTERS_GZIP_GZIP_TRACE_PARSER_H_ 58