| /* |
| * 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_PACKET_SEQUENCE_STATE_GENERATION_H_ |
| #define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PACKET_SEQUENCE_STATE_GENERATION_H_ |
| |
| #include <optional> |
| #include <unordered_map> |
| |
| #include "perfetto/trace_processor/ref_counted.h" |
| #include "src/trace_processor/util/interned_message_view.h" |
| |
| #include "protos/perfetto/trace/trace_packet_defaults.pbzero.h" |
| #include "protos/perfetto/trace/track_event/track_event.pbzero.h" |
| |
| namespace perfetto { |
| namespace trace_processor { |
| |
| using InternedMessageMap = |
| std::unordered_map<uint64_t /*iid*/, InternedMessageView>; |
| using InternedFieldMap = |
| std::unordered_map<uint32_t /*field_id*/, InternedMessageMap>; |
| |
| class PacketSequenceState; |
| |
| class PacketSequenceStateGeneration : public RefCounted { |
| public: |
| // Returns |nullptr| if the message with the given |iid| was not found (also |
| // records a stat in this case). |
| template <uint32_t FieldId, typename MessageType> |
| typename MessageType::Decoder* LookupInternedMessage(uint64_t iid); |
| |
| InternedMessageView* GetInternedMessageView(uint32_t field_id, uint64_t iid); |
| // Returns |nullptr| if no defaults were set. |
| InternedMessageView* GetTracePacketDefaultsView() { |
| if (!trace_packet_defaults_) |
| return nullptr; |
| return &trace_packet_defaults_.value(); |
| } |
| |
| // Returns |nullptr| if no defaults were set. |
| protos::pbzero::TracePacketDefaults::Decoder* GetTracePacketDefaults() { |
| InternedMessageView* view = GetTracePacketDefaultsView(); |
| if (!view) |
| return nullptr; |
| return view->GetOrCreateDecoder<protos::pbzero::TracePacketDefaults>(); |
| } |
| |
| // Returns |nullptr| if no TrackEventDefaults were set. |
| protos::pbzero::TrackEventDefaults::Decoder* GetTrackEventDefaults() { |
| auto* packet_defaults_view = GetTracePacketDefaultsView(); |
| if (packet_defaults_view) { |
| auto* track_event_defaults_view = |
| packet_defaults_view |
| ->GetOrCreateSubmessageView<protos::pbzero::TracePacketDefaults, |
| protos::pbzero::TracePacketDefaults:: |
| kTrackEventDefaultsFieldNumber>(); |
| if (track_event_defaults_view) { |
| return track_event_defaults_view |
| ->GetOrCreateDecoder<protos::pbzero::TrackEventDefaults>(); |
| } |
| } |
| return nullptr; |
| } |
| |
| PacketSequenceState* state() const { return state_; } |
| size_t generation_index() const { return generation_index_; } |
| |
| private: |
| friend class PacketSequenceState; |
| |
| PacketSequenceStateGeneration(PacketSequenceState* state, |
| size_t generation_index) |
| : state_(state), generation_index_(generation_index) {} |
| |
| PacketSequenceStateGeneration(PacketSequenceState* state, |
| size_t generation_index, |
| InternedFieldMap interned_data, |
| TraceBlobView defaults) |
| : state_(state), |
| generation_index_(generation_index), |
| interned_data_(interned_data), |
| trace_packet_defaults_(InternedMessageView(std::move(defaults))) {} |
| |
| void InternMessage(uint32_t field_id, TraceBlobView message); |
| |
| void SetTracePacketDefaults(TraceBlobView defaults) { |
| // Defaults should only be set once per generation. |
| PERFETTO_DCHECK(!trace_packet_defaults_); |
| trace_packet_defaults_ = InternedMessageView(std::move(defaults)); |
| } |
| |
| PacketSequenceState* state_; |
| size_t generation_index_; |
| InternedFieldMap interned_data_; |
| std::optional<InternedMessageView> trace_packet_defaults_; |
| }; |
| |
| } // namespace trace_processor |
| } // namespace perfetto |
| |
| #endif // SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_PACKET_SEQUENCE_STATE_GENERATION_H_ |