chromium/third_party/perfetto/src/trace_processor/perfetto_sql/intrinsics/functions/layout_functions.cc

// 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.

#include "src/trace_processor/perfetto_sql/intrinsics/functions/layout_functions.h"

#include <cstddef>
#include <cstdint>
#include <limits>
#include <queue>
#include <vector>
#include "perfetto/base/logging.h"
#include "perfetto/base/status.h"
#include "perfetto/ext/base/status_or.h"
#include "perfetto/trace_processor/basic_types.h"
#include "src/trace_processor/perfetto_sql/engine/perfetto_sql_engine.h"
#include "src/trace_processor/sqlite/bindings/sqlite_result.h"
#include "src/trace_processor/sqlite/bindings/sqlite_window_function.h"
#include "src/trace_processor/sqlite/sqlite_utils.h"
#include "src/trace_processor/util/status_macros.h"

namespace perfetto::trace_processor {

namespace {

constexpr char kFunctionName[] = …;

// A helper class for tracking which depths are available at a given time
// and which slices are occupying each depths.
class SlicePacker { … };

base::StatusOr<SlicePacker*> GetOrCreateAggregationContext(
    sqlite3_context* ctx) { … }

base::Status StepStatus(sqlite3_context* ctx,
                        size_t argc,
                        sqlite3_value** argv) { … }

struct InternalLayout : public SqliteWindowFunction { … };

}  // namespace

base::Status RegisterLayoutFunctions(PerfettoSqlEngine& engine) { … }

}  // namespace perfetto::trace_processor