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/*
* 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_PROTO_METADATA_TRACKER_H_
#define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_METADATA_TRACKER_H_
#include "src/trace_processor/storage/trace_storage.h"
namespace perfetto {
namespace trace_processor {
class TraceProcessorContext;
// Tracks information in the metadata table.
class MetadataTracker {
public:
MetadataTracker(TraceProcessorContext* context);
// Example usage:
// SetMetadata(metadata::benchmark_name,
// Variadic::String(storage->InternString("foo"));
// Returns the id of the new entry.
MetadataId SetMetadata(metadata::KeyIDs 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::KeyIDs key, Variadic value);
private:
static constexpr size_t kNumKeys =
static_cast<size_t>(metadata::KeyIDs::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_;
TraceProcessorContext* context_;
};
} // namespace trace_processor
} // namespace perfetto
#endif // SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_METADATA_TRACKER_H_
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