1 // Copyright (C) 2023 The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef SRC_TRACE_PROCESSOR_PERFETTO_SQL_INTRINSICS_FUNCTIONS_LAYOUT_FUNCTIONS_H_ 16 #define SRC_TRACE_PROCESSOR_PERFETTO_SQL_INTRINSICS_FUNCTIONS_LAYOUT_FUNCTIONS_H_ 17 18 #include <sqlite3.h> 19 20 #include "perfetto/base/status.h" 21 #include "src/trace_processor/perfetto_sql/engine/perfetto_sql_engine.h" 22 23 namespace perfetto::trace_processor { 24 25 class TraceProcessorContext; 26 27 // Implements INTERNAL_LAYOUT(ts, dur) window aggregate function. 28 // This function takes a set of slices (ordered by ts) and computes depths 29 // allowing them to be displayed on a single track in a non-overlapping manner, 30 // while trying to minimise the total height. 31 // 32 // TODO(altimin): this should support grouping sets of sets of slices (aka 33 // "tracks") by passing 'track_id' parameter. The complication is that we will 34 // need to know the max depth for each "track", so it's punted for now. 35 base::Status RegisterLayoutFunctions(PerfettoSqlEngine& engine); 36 37 } // namespace perfetto::trace_processor 38 39 #endif // SRC_TRACE_PROCESSOR_PERFETTO_SQL_INTRINSICS_FUNCTIONS_LAYOUT_FUNCTIONS_H_ 40