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_ARCHIVE_GZIP_TRACE_PARSER_H_ 18 #define SRC_TRACE_PROCESSOR_IMPORTERS_ARCHIVE_GZIP_TRACE_PARSER_H_ 19 20 #include <cstddef> 21 #include <cstdint> 22 #include <memory> 23 24 #include "perfetto/base/status.h" 25 #include "src/trace_processor/importers/common/chunked_trace_reader.h" 26 #include "src/trace_processor/util/gzip_utils.h" 27 28 namespace perfetto::trace_processor { 29 30 class TraceProcessorContext; 31 32 class GzipTraceParser : public ChunkedTraceReader { 33 public: 34 explicit GzipTraceParser(TraceProcessorContext*); 35 explicit GzipTraceParser(std::unique_ptr<ChunkedTraceReader>); 36 ~GzipTraceParser() override; 37 38 // ChunkedTraceReader implementation 39 base::Status Parse(TraceBlobView) override; 40 base::Status NotifyEndOfFile() override; 41 42 base::Status ParseUnowned(const uint8_t*, size_t); 43 44 private: 45 TraceProcessorContext* const context_; 46 util::GzipDecompressor decompressor_; 47 std::unique_ptr<ChunkedTraceReader> inner_; 48 49 std::unique_ptr<uint8_t[]> buffer_; 50 size_t bytes_written_ = 0; 51 52 bool first_chunk_parsed_ = false; 53 enum { kStreamBoundary, kMidStream } output_state_ = kStreamBoundary; 54 }; 55 56 } // namespace perfetto::trace_processor 57 58 #endif // SRC_TRACE_PROCESSOR_IMPORTERS_ARCHIVE_GZIP_TRACE_PARSER_H_ 59