| /* |
| * Copyright (C) 2019 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_FUCHSIA_FUCHSIA_TRACE_TOKENIZER_H_ |
| #define SRC_TRACE_PROCESSOR_IMPORTERS_FUCHSIA_FUCHSIA_TRACE_TOKENIZER_H_ |
| |
| #include "src/trace_processor/importers/common/chunked_trace_reader.h" |
| #include "src/trace_processor/importers/fuchsia/fuchsia_trace_utils.h" |
| #include "src/trace_processor/importers/proto/proto_trace_reader.h" |
| #include "src/trace_processor/storage/trace_storage.h" |
| #include "src/trace_processor/types/task_state.h" |
| |
| namespace perfetto { |
| namespace trace_processor { |
| |
| class TraceProcessorContext; |
| |
| // The Fuchsia trace format is documented at |
| // https://fuchsia.googlesource.com/fuchsia/+/HEAD/docs/development/tracing/trace-format/README.md |
| class FuchsiaTraceTokenizer : public ChunkedTraceReader { |
| public: |
| explicit FuchsiaTraceTokenizer(TraceProcessorContext*); |
| ~FuchsiaTraceTokenizer() override; |
| |
| // ChunkedTraceReader implementation |
| util::Status Parse(TraceBlobView) override; |
| void NotifyEndOfFile() override; |
| |
| private: |
| struct ProviderInfo { |
| std::string name; |
| |
| std::unordered_map<uint64_t, StringId> string_table; |
| std::unordered_map<uint64_t, FuchsiaThreadInfo> thread_table; |
| |
| // Returns a StringId for the given FXT string ref id. |
| StringId GetString(uint64_t string_ref) { |
| auto search = string_table.find(string_ref); |
| if (search != string_table.end()) { |
| return search->second; |
| } |
| return kNullStringId; |
| } |
| |
| // Returns a FuchsiaThreadInfo for the given FXT thread ref id. |
| FuchsiaThreadInfo GetThread(uint64_t thread_ref) { |
| auto search = thread_table.find(thread_ref); |
| if (search != thread_table.end()) { |
| return search->second; |
| } |
| return {0, 0}; |
| } |
| |
| uint64_t ticks_per_second = 1000000000; |
| }; |
| |
| // Tracks the state for updating sched slice and thread state tables. |
| struct Thread { |
| explicit Thread(uint64_t tid) : info{0, tid} {} |
| |
| FuchsiaThreadInfo info; |
| int64_t last_ts{0}; |
| std::optional<tables::SchedSliceTable::RowNumber> last_slice_row; |
| std::optional<tables::ThreadStateTable::RowNumber> last_state_row; |
| }; |
| |
| void SwitchFrom(Thread* thread, |
| int64_t ts, |
| uint32_t cpu, |
| uint32_t thread_state); |
| void SwitchTo(Thread* thread, int64_t ts, uint32_t cpu, int32_t weight); |
| void Wake(Thread* thread, int64_t ts, uint32_t cpu); |
| |
| // Allocates or returns an existing Thread instance for the given tid. |
| Thread& GetThread(uint64_t tid) { |
| auto search = threads_.find(tid); |
| if (search != threads_.end()) { |
| return search->second; |
| } |
| auto result = threads_.emplace(tid, tid); |
| return result.first->second; |
| } |
| |
| void ParseRecord(TraceBlobView); |
| void RegisterProvider(uint32_t, std::string); |
| StringId IdForOutgoingThreadState(uint32_t state); |
| |
| TraceProcessorContext* const context_; |
| std::vector<uint8_t> leftover_bytes_; |
| |
| // Proto reader creates state that the blobs it emits reference, so the |
| // proto_reader needs to live for as long as the tokenizer. |
| ProtoTraceReader proto_reader_; |
| std::vector<uint8_t> proto_trace_data_; |
| |
| std::unordered_map<uint32_t, std::unique_ptr<ProviderInfo>> providers_; |
| ProviderInfo* current_provider_; |
| |
| // Interned string ids for the relevant thread states. |
| StringId running_string_id_; |
| StringId runnable_string_id_; |
| StringId preempted_string_id_; |
| StringId waking_string_id_; |
| StringId blocked_string_id_; |
| StringId suspended_string_id_; |
| StringId exit_dying_string_id_; |
| StringId exit_dead_string_id_; |
| |
| // Interned string ids for record arguments. |
| StringId incoming_weight_id_; |
| StringId outgoing_weight_id_; |
| StringId weight_id_; |
| StringId process_id_; |
| |
| // Map from tid to Thread. |
| std::unordered_map<uint64_t, Thread> threads_; |
| }; |
| |
| } // namespace trace_processor |
| } // namespace perfetto |
| |
| #endif // SRC_TRACE_PROCESSOR_IMPORTERS_FUCHSIA_FUCHSIA_TRACE_TOKENIZER_H_ |