src/trace_processor/stack_profile_callsite_table.cc

/*
 * 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.
 */

#include "src/trace_processor/stack_profile_callsite_table.h"

namespace perfetto {
namespace trace_processor {

StackProfileCallsiteTable::StackProfileCallsiteTable(
    sqlite3*,
    const TraceStorage* storage)
    : storage_(storage) {}

void StackProfileCallsiteTable::RegisterTable(sqlite3* db,
                                              const TraceStorage* storage) {
  SqliteTable::Register<StackProfileCallsiteTable>(db, storage,
                                                   "stack_profile_callsite");
}

StorageSchema StackProfileCallsiteTable::CreateStorageSchema() {
  const auto& callsites = storage_->stack_profile_callsites();
  return StorageSchema::Builder()
      .AddGenericNumericColumn("id", RowAccessor())
      .AddNumericColumn("depth", &callsites.frame_depths())
      .AddNumericColumn("parent_id", &callsites.parent_callsite_ids())
      .AddNumericColumn("frame_id", &callsites.frame_ids())
      .Build({"id"});
}

uint32_t StackProfileCallsiteTable::RowCount() {
  return storage_->stack_profile_callsites().size();
}

int StackProfileCallsiteTable::BestIndex(const QueryConstraints& qc,
                                         BestIndexInfo* info) {
  info->order_by_consumed = true;
  info->estimated_cost = HasEqConstraint(qc, "id") ? 1 : RowCount();
  return SQLITE_OK;
}

}  // namespace trace_processor
}  // namespace perfetto