| /* |
| * 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. |
| */ |
| |
| #include "src/trace_processor/importers/proto/packet_sequence_state_generation.h" |
| |
| #include "src/trace_processor/importers/proto/packet_sequence_state.h" |
| |
| namespace perfetto { |
| namespace trace_processor { |
| |
| void PacketSequenceStateGeneration::InternMessage(uint32_t field_id, |
| TraceBlobView message) { |
| constexpr auto kIidFieldNumber = 1; |
| |
| uint64_t iid = 0; |
| auto message_start = message.data(); |
| auto message_size = message.length(); |
| protozero::ProtoDecoder decoder(message_start, message_size); |
| |
| auto field = decoder.FindField(kIidFieldNumber); |
| if (PERFETTO_UNLIKELY(!field)) { |
| PERFETTO_DLOG("Interned message without interning_id"); |
| state_->context()->storage->IncrementStats( |
| stats::interned_data_tokenizer_errors); |
| return; |
| } |
| iid = field.as_uint64(); |
| |
| auto res = interned_data_[field_id].emplace( |
| iid, InternedMessageView(std::move(message))); |
| |
| // If a message with this ID is already interned in the same generation, |
| // its data should not have changed (this is forbidden by the InternedData |
| // proto). |
| // TODO(eseckler): This DCHECK assumes that the message is encoded the |
| // same way if it is re-emitted. |
| PERFETTO_DCHECK(res.second || |
| (res.first->second.message().length() == message_size && |
| memcmp(res.first->second.message().data(), message_start, |
| message_size) == 0)); |
| } |
| |
| InternedMessageView* PacketSequenceStateGeneration::GetInternedMessageView( |
| uint32_t field_id, |
| uint64_t iid) { |
| auto field_it = interned_data_.find(field_id); |
| if (field_it != interned_data_.end()) { |
| auto* message_map = &field_it->second; |
| auto it = message_map->find(iid); |
| if (it != message_map->end()) { |
| return &it->second; |
| } |
| } |
| state_->context()->storage->IncrementStats( |
| stats::interned_data_tokenizer_errors); |
| return nullptr; |
| } |
| |
| } // namespace trace_processor |
| } // namespace perfetto |