/* * 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/android_logs_table.h" namespace perfetto { namespace trace_processor { AndroidLogsTable::AndroidLogsTable(sqlite3*, const TraceStorage* storage) : storage_(storage) {} void AndroidLogsTable::RegisterTable(sqlite3* db, const TraceStorage* storage) { Table::Register<AndroidLogsTable>(db, storage, "android_logs"); } StorageSchema AndroidLogsTable::CreateStorageSchema() { const auto& alog = storage_->android_logs(); // Note: the logs in the storage are NOT sorted by timestamp. We delegate // that to the on-demand sorter by calling AddNumericColumn (instead of // AddSortedNumericColumn). return StorageSchema::Builder() .AddNumericColumn("ts", &alog.timestamps()) .AddNumericColumn("utid", &alog.utids()) .AddNumericColumn("prio", &alog.prios()) .AddStringColumn("tag", &alog.tag_ids(), &storage_->string_pool()) .AddStringColumn("msg", &alog.msg_ids(), &storage_->string_pool()) .Build({"ts", "utid", "msg"}); } uint32_t AndroidLogsTable::RowCount() { return static_cast<uint32_t>(storage_->android_logs().size()); } int AndroidLogsTable::BestIndex(const QueryConstraints& qc, BestIndexInfo* info) { info->estimated_cost = static_cast<uint32_t>(storage_->android_logs().size()); info->order_by_consumed = true; // Only the string columns are handled by SQLite. size_t tag_index = schema().ColumnIndexFromName("tag"); size_t msg_index = schema().ColumnIndexFromName("msg"); for (size_t i = 0; i < qc.constraints().size(); i++) { info->omit[i] = qc.constraints()[i].iColumn != static_cast<int>(tag_index) && qc.constraints()[i].iColumn != static_cast<int>(msg_index); } return SQLITE_OK; } } // namespace trace_processor } // namespace perfetto