| // Copyright (C) 2023 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_PRELUDE_FUNCTIONS_LAYOUT_FUNCTIONS_H_ |
| #define SRC_TRACE_PROCESSOR_PRELUDE_FUNCTIONS_LAYOUT_FUNCTIONS_H_ |
| |
| #include <sqlite3.h> |
| |
| #include "perfetto/base/status.h" |
| |
| namespace perfetto::trace_processor { |
| |
| class TraceProcessorContext; |
| |
| // Implements INTERNAL_LAYOUT(ts, dur) window aggregate function. |
| // This function takes a set of slices (ordered by ts) and computes depths |
| // allowing them to be displayed on a single track in a non-overlapping manner, |
| // while trying to minimising total height. |
| // |
| // TODO(altimin): this should support grouping sets of sets of slices (aka |
| // "tracks") by passing 'track_id' parameter. The complication is that we will |
| // need to know the max depth for each "track", so it's punted for now. |
| struct LayoutFunctions { |
| static base::Status Register(sqlite3* db, TraceProcessorContext* context); |
| }; |
| |
| } // namespace perfetto::trace_processor |
| |
| #endif // SRC_TRACE_PROCESSOR_PRELUDE_FUNCTIONS_LAYOUT_FUNCTIONS_H_ |
