| /* |
| * Copyright (C) 2022 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_PROTO_ACTIVE_CHROME_PROCESSES_TRACKER_H_ |
| #define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_ACTIVE_CHROME_PROCESSES_TRACKER_H_ |
| |
| #include <optional> |
| #include <set> |
| #include <vector> |
| |
| #include "perfetto/ext/base/flat_hash_map.h" |
| #include "src/trace_processor/storage/trace_storage.h" |
| #include "src/trace_processor/types/trace_processor_context.h" |
| |
| namespace perfetto { |
| namespace trace_processor { |
| |
| struct ProcessWithDataLoss { |
| UniquePid upid; |
| // If not std::nullopt, the process data is reliable from this point until |
| // the end of the trace. |
| std::optional<int64_t> reliable_from; |
| }; |
| |
| // Tracks ActiveProcesses metadata packets from ChromeTrackEvent, |
| // and process descriptors. |
| // Computes a list of processes with missing data based on this information. |
| class ActiveChromeProcessesTracker { |
| public: |
| explicit ActiveChromeProcessesTracker(TraceProcessorContext* context) |
| : context_(context) {} |
| |
| void AddActiveProcessMetadata(int64_t timestamp, UniquePid upid); |
| void AddProcessDescriptor(int64_t timestamp, UniquePid upid) { |
| process_data_[upid].descriptor_timestamps.insert(timestamp); |
| } |
| std::vector<ProcessWithDataLoss> GetProcessesWithDataLoss() const; |
| void NotifyEndOfFile(); |
| |
| private: |
| struct ProcessData { |
| std::set<int64_t> metadata_timestamps; |
| std::set<int64_t> descriptor_timestamps; |
| }; |
| |
| TraceProcessorContext* context_; |
| base::FlatHashMap<UniquePid, ProcessData> process_data_; |
| // Metadata timestamps across all processes. |
| std::set<int64_t> global_metadata_timestamps_; |
| }; |
| |
| } // namespace trace_processor |
| } // namespace perfetto |
| |
| #endif // SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_ACTIVE_CHROME_PROCESSES_TRACKER_H_ |