/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "src/trace_processor/instants_table.h"
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#include <string>
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#include "src/trace_processor/storage_columns.h"
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namespace perfetto {
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namespace trace_processor {
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InstantsTable::InstantsTable(sqlite3*, const TraceStorage* storage)
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: storage_(storage) {}
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void InstantsTable::RegisterTable(sqlite3* db, const TraceStorage* storage) {
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Table::Register<InstantsTable>(db, storage, "instants");
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}
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StorageSchema InstantsTable::CreateStorageSchema() {
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const auto& instants = storage_->instants();
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return StorageSchema::Builder()
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.AddGenericNumericColumn("id", RowIdAccessor(TableId::kInstants))
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.AddOrderedNumericColumn("ts", &instants.timestamps())
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.AddStringColumn("name", &instants.name_ids(), &storage_->string_pool())
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.AddNumericColumn("value", &instants.values())
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.AddNumericColumn("ref", &instants.refs())
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.AddStringColumn("ref_type", &instants.types(), &GetRefTypeStringMap())
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.AddNumericColumn("arg_set_id", &instants.arg_set_ids())
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.Build({"name", "ts", "ref"});
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}
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uint32_t InstantsTable::RowCount() {
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return static_cast<uint32_t>(storage_->instants().instant_count());
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}
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int InstantsTable::BestIndex(const QueryConstraints& qc, BestIndexInfo* info) {
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info->estimated_cost =
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static_cast<uint32_t>(storage_->instants().instant_count());
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// Only the string columns are handled by SQLite
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info->order_by_consumed = true;
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size_t name_index = schema().ColumnIndexFromName("name");
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size_t ref_type_index = schema().ColumnIndexFromName("ref_type");
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for (size_t i = 0; i < qc.constraints().size(); i++) {
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info->omit[i] =
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qc.constraints()[i].iColumn != static_cast<int>(name_index) &&
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qc.constraints()[i].iColumn != static_cast<int>(ref_type_index);
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}
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return SQLITE_OK;
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}
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} // namespace trace_processor
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} // namespace perfetto
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