| /* |
| * 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_JSON_JSON_UTILS_H_ |
| #define SRC_TRACE_PROCESSOR_IMPORTERS_JSON_JSON_UTILS_H_ |
| |
| #include <stdint.h> |
| #include <optional> |
| |
| #include "perfetto/ext/base/string_view.h" |
| |
| #include "src/trace_processor/importers/common/args_tracker.h" |
| |
| #if PERFETTO_BUILDFLAG(PERFETTO_TP_JSON) |
| #include <json/value.h> |
| #else |
| namespace Json { |
| class Value {}; |
| } // namespace Json |
| #endif |
| |
| namespace perfetto { |
| namespace trace_processor { |
| namespace json { |
| |
| // Returns whether JSON related functioanlity is supported with the current |
| // build flags. |
| bool IsJsonSupported(); |
| |
| std::optional<int64_t> CoerceToTs(const Json::Value& value); |
| std::optional<int64_t> CoerceToTs(const std::string& value); |
| std::optional<int64_t> CoerceToInt64(const Json::Value& value); |
| std::optional<uint32_t> CoerceToUint32(const Json::Value& value); |
| |
| // Parses the given JSON string into a JSON::Value object. |
| // This function should only be called if |IsJsonSupported()| returns true. |
| std::optional<Json::Value> ParseJsonString(base::StringView raw_string); |
| |
| // Flattens the given Json::Value and adds each leaf node to the bound args |
| // inserter. Note: |
| // * |flat_key| and |key| should be non-empty and will be used to prefix the |
| // keys of all leaf nodes in the JSON. |
| // * |storage| is used to intern all strings (e.g. keys and values). |
| // * This function should only be called if |IsJsonSupported()| returns true. |
| bool AddJsonValueToArgs(const Json::Value& value, |
| base::StringView flat_key, |
| base::StringView key, |
| TraceStorage* storage, |
| ArgsTracker::BoundInserter* inserter); |
| |
| } // namespace json |
| } // namespace trace_processor |
| } // namespace perfetto |
| |
| #endif // SRC_TRACE_PROCESSOR_IMPORTERS_JSON_JSON_UTILS_H_ |