third_party/perfetto/src/trace_processor/prelude/table_functions/view.cc

/*
 * Copyright (C) 2022 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/prelude/table_functions/view.h"

namespace perfetto {
namespace trace_processor {

ViewTableFunction::ViewTableFunction(const View* view, const char* name)
    : view_(view), name_(name) {}

ViewTableFunction::~ViewTableFunction() = default;

base::Status ViewTableFunction::ValidateConstraints(const QueryConstraints&) {
  return base::OkStatus();
}

base::Status ViewTableFunction::ComputeTable(const std::vector<Constraint>& cs,
                                             const std::vector<Order>& ob,
                                             const BitVector& cols_used,
                                             std::unique_ptr<Table>& table) {
  table.reset(new Table(view_->Query(cs, ob, cols_used)));
  return base::OkStatus();
}

Table::Schema ViewTableFunction::CreateSchema() {
  return view_->schema();
}

std::string ViewTableFunction::TableName() {
  return name_;
}

uint32_t ViewTableFunction::EstimateRowCount() {
  return view_->EstimateRowCount();
}

}  // namespace trace_processor
}  // namespace perfetto