| /* |
| * 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_COMMON_METADATA_TRACKER_H_ |
| #define SRC_TRACE_PROCESSOR_IMPORTERS_COMMON_METADATA_TRACKER_H_ |
| |
| #include "src/trace_processor/storage/trace_storage.h" |
| |
| namespace perfetto { |
| namespace trace_processor { |
| |
| // Tracks information in the metadata table. |
| class MetadataTracker { |
| public: |
| MetadataTracker(TraceStorage* storage); |
| |
| // Example usage: |
| // SetMetadata(metadata::benchmark_name, |
| // Variadic::String(storage->InternString("foo")); |
| // Returns the id of the new entry. |
| MetadataId SetMetadata(metadata::KeyId key, Variadic value); |
| |
| // Example usage: |
| // AppendMetadata(metadata::benchmark_story_tags, |
| // Variadic::String(storage->InternString("bar")); |
| // Returns the id of the new entry. |
| MetadataId AppendMetadata(metadata::KeyId key, Variadic value); |
| |
| // Sets a metadata entry using any interned string as key. |
| // Returns the id of the new entry. |
| MetadataId SetDynamicMetadata(StringId key, Variadic value); |
| |
| // Reads back a set metadata value. |
| // Only kSingle types are supported right now. |
| SqlValue GetMetadata(metadata::KeyId key); |
| |
| // Tracks how many ChromeMetadata bundles have been parsed. |
| uint32_t IncrementChromeMetadataBundleCount() { |
| return ++chrome_metadata_bundle_count_; |
| } |
| |
| private: |
| static constexpr size_t kNumKeys = |
| static_cast<size_t>(metadata::KeyId::kNumKeys); |
| static constexpr size_t kNumKeyTypes = |
| static_cast<size_t>(metadata::KeyType::kNumKeyTypes); |
| |
| void WriteValue(uint32_t row, Variadic value); |
| |
| std::array<StringId, kNumKeys> key_ids_; |
| std::array<StringId, kNumKeyTypes> key_type_ids_; |
| uint32_t chrome_metadata_bundle_count_ = 0; |
| |
| TraceStorage* storage_; |
| }; |
| |
| } // namespace trace_processor |
| } // namespace perfetto |
| |
| #endif // SRC_TRACE_PROCESSOR_IMPORTERS_COMMON_METADATA_TRACKER_H_ |