/* * Copyright (C) 2020 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef SRC_TRACE_PROCESSOR_IMPORTERS_NINJA_NINJA_LOG_PARSER_H_ #define SRC_TRACE_PROCESSOR_IMPORTERS_NINJA_NINJA_LOG_PARSER_H_ #include <cstdint> #include <string> #include <vector> #include "perfetto/base/status.h" #include "src/trace_processor/importers/common/chunked_trace_reader.h" #include "src/trace_processor/importers/common/trace_parser.h" namespace perfetto::trace_processor { class TraceProcessorContext; // This class parses Ninja's (the build system, ninja-build.org) build logs and // turns them into traces. A ninja log typically contains the logs of >1 ninja // invocation. We map those as follows: // - For each ninja invocation we create one process in the trace (from the UI // perspective a process is a group of tracks). // - Within each invocation we work out the parallelism from the time stamp and // create one thread for each concurent stream of jobs. // Caveat: this works only if ninja didn't recompact the logs. Once recompaction // happens (can be forced via ninja -t recompact) there is no way to identify // the boundaries of each build (recompaction deletes, for each hash, all but // the most recent timestamp and rewrites the log). class NinjaLogParser : public ChunkedTraceReader { … }; } // namespace perfetto::trace_processor #endif // SRC_TRACE_PROCESSOR_IMPORTERS_NINJA_NINJA_LOG_PARSER_H_
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