| /* |
| * 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_PROTO_PROTO_INCREMENTAL_STATE_H_ |
| #define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PROTO_INCREMENTAL_STATE_H_ |
| |
| #include <stdint.h> |
| |
| #include <map> |
| |
| #include "src/trace_processor/importers/proto/packet_sequence_state.h" |
| |
| namespace perfetto { |
| namespace trace_processor { |
| |
| class TraceProcessorContext; |
| |
| // Stores per-packet-sequence incremental state during trace parsing, such as |
| // reference timestamps for delta timestamp calculation and interned messages. |
| class ProtoIncrementalState { |
| public: |
| ProtoIncrementalState(TraceProcessorContext* context) : context_(context) {} |
| |
| // Returns the PacketSequenceState for the packet sequence with the given id. |
| // If this is a new sequence which we haven't tracked before, initializes and |
| // inserts a new PacketSequenceState into the state map. |
| PacketSequenceState* GetOrCreateStateForPacketSequence(uint32_t sequence_id) { |
| auto& ptr = packet_sequence_states_[sequence_id]; |
| if (!ptr) |
| ptr.reset(new PacketSequenceState(context_)); |
| return ptr.get(); |
| } |
| |
| private: |
| // Stores unique_ptrs to ensure that pointers to a PacketSequenceState remain |
| // valid even if the map rehashes. |
| std::map<uint32_t, std::unique_ptr<PacketSequenceState>> |
| packet_sequence_states_; |
| |
| TraceProcessorContext* context_; |
| }; |
| |
| } // namespace trace_processor |
| } // namespace perfetto |
| |
| #endif // SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PROTO_INCREMENTAL_STATE_H_ |