1 /*
2 * Copyright (c) Huawei Technologies Co., Ltd. 2023. All rights reserved.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "meta_table.h"
17
18 namespace SysTuning {
19 namespace TraceStreamer {
20 enum class Index : int32_t { NAMEINDEX = 0, VALUE };
MetaTable(const TraceDataCache * dataCache)21 MetaTable::MetaTable(const TraceDataCache *dataCache) : TableBase(dataCache)
22 {
23 tableColumn_.push_back(TableBase::ColumnInfo("name", "TEXT"));
24 tableColumn_.push_back(TableBase::ColumnInfo("value", "TEXT"));
25 tablePriKey_.push_back("name");
26 }
27
~MetaTable()28 MetaTable::~MetaTable() {}
29
CreateCursor()30 std::unique_ptr<TableBase::Cursor> MetaTable::CreateCursor()
31 {
32 return std::make_unique<Cursor>(dataCache_, this);
33 }
34
Cursor(const TraceDataCache * dataCache,TableBase * table)35 MetaTable::Cursor::Cursor(const TraceDataCache *dataCache, TableBase *table)
36 : TableBase::Cursor(dataCache, table, METADATA_ITEM_MAX)
37 {
38 }
39
~Cursor()40 MetaTable::Cursor::~Cursor() {}
41
Column(int32_t column) const42 int32_t MetaTable::Cursor::Column(int32_t column) const
43 {
44 switch (static_cast<Index>(column)) {
45 case Index::NAMEINDEX:
46 sqlite3_result_text(context_, dataCache_->GetConstMetaData().Name(CurrentRow()).c_str(), STR_DEFAULT_LEN,
47 nullptr);
48 break;
49 case Index::VALUE:
50 sqlite3_result_text(context_, dataCache_->GetConstMetaData().Value(CurrentRow()).c_str(), STR_DEFAULT_LEN,
51 nullptr);
52 break;
53 default:
54 TS_LOGF("Unregistered column : %d", column);
55 break;
56 }
57 return SQLITE_OK;
58 }
59 } // namespace TraceStreamer
60 } // namespace SysTuning
61