1 /* 2 * Copyright (C) 2024 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_PERF_SAMPLE_ID_H_ 18 #define SRC_TRACE_PROCESSOR_IMPORTERS_PERF_SAMPLE_ID_H_ 19 20 #include <cstdint> 21 #include <optional> 22 23 #include "perfetto/base/status.h" 24 #include "perfetto/trace_processor/trace_blob_view.h" 25 #include "src/trace_processor/importers/perf/perf_event.h" 26 #include "src/trace_processor/importers/perf/record.h" 27 28 namespace perfetto::trace_processor::perf_importer { 29 30 class PerfEventAttr; 31 class Reader; 32 33 class SampleId { 34 public: 35 base::Status ParseFromRecord(const Record& record); 36 bool ReadFrom(const PerfEventAttr& attr, Reader& reader); 37 SampleId()38 SampleId() : sample_type_(0) {} 39 tid()40 std::optional<uint32_t> tid() const { 41 return sample_type_ & PERF_SAMPLE_TID ? std::make_optional(tid_) 42 : std::nullopt; 43 } pid()44 std::optional<uint32_t> pid() const { 45 return sample_type_ & PERF_SAMPLE_TID ? std::make_optional(pid_) 46 : std::nullopt; 47 } time()48 std::optional<uint64_t> time() const { 49 return sample_type_ & PERF_SAMPLE_TIME ? std::make_optional(time_) 50 : std::nullopt; 51 } id()52 std::optional<uint64_t> id() const { 53 return sample_type_ & (PERF_SAMPLE_ID | PERF_SAMPLE_IDENTIFIER) 54 ? std::make_optional(id_) 55 : std::nullopt; 56 } stream_id()57 std::optional<uint64_t> stream_id() const { 58 return sample_type_ & PERF_SAMPLE_STREAM_ID ? std::make_optional(stream_id_) 59 : std::nullopt; 60 } cpu()61 std::optional<uint32_t> cpu() const { 62 return sample_type_ & PERF_SAMPLE_CPU ? std::make_optional(cpu_) 63 : std::nullopt; 64 } 65 set_cpu(std::optional<uint32_t> cpu)66 void set_cpu(std::optional<uint32_t> cpu) { 67 if (cpu.has_value()) { 68 sample_type_ |= PERF_SAMPLE_CPU; 69 cpu_ = *cpu; 70 } else { 71 sample_type_ &= ~static_cast<uint64_t>(PERF_SAMPLE_CPU); 72 } 73 } 74 75 private: 76 uint32_t tid_; 77 uint32_t pid_; 78 uint64_t time_; 79 uint64_t id_; 80 uint64_t stream_id_; 81 uint32_t cpu_; 82 uint64_t sample_type_; 83 }; 84 85 } // namespace perfetto::trace_processor::perf_importer 86 87 #endif // SRC_TRACE_PROCESSOR_IMPORTERS_PERF_SAMPLE_ID_H_ 88