/*
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* Copyright (C) 2019 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/android_logs_table.h"
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namespace perfetto {
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namespace trace_processor {
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AndroidLogsTable::AndroidLogsTable(sqlite3*, const TraceStorage* storage)
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: storage_(storage) {}
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void AndroidLogsTable::RegisterTable(sqlite3* db, const TraceStorage* storage) {
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Table::Register<AndroidLogsTable>(db, storage, "android_logs");
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}
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StorageSchema AndroidLogsTable::CreateStorageSchema() {
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const auto& alog = storage_->android_logs();
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// Note: the logs in the storage are NOT sorted by timestamp. We delegate
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// that to the on-demand sorter by calling AddNumericColumn (instead of
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// AddSortedNumericColumn).
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return StorageSchema::Builder()
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.AddNumericColumn("ts", &alog.timestamps())
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.AddNumericColumn("utid", &alog.utids())
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.AddNumericColumn("prio", &alog.prios())
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.AddStringColumn("tag", &alog.tag_ids(), &storage_->string_pool())
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.AddStringColumn("msg", &alog.msg_ids(), &storage_->string_pool())
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.Build({"ts", "utid", "msg"});
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}
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uint32_t AndroidLogsTable::RowCount() {
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return static_cast<uint32_t>(storage_->android_logs().size());
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}
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int AndroidLogsTable::BestIndex(const QueryConstraints& qc,
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BestIndexInfo* info) {
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info->estimated_cost = static_cast<uint32_t>(storage_->android_logs().size());
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info->order_by_consumed = true;
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// Only the string columns are handled by SQLite.
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size_t tag_index = schema().ColumnIndexFromName("tag");
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size_t msg_index = schema().ColumnIndexFromName("msg");
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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>(tag_index) &&
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qc.constraints()[i].iColumn != static_cast<int>(msg_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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