1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
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 "clock_snapshot_table.h"
17 #include <cmath>
18
19 namespace SysTuning {
20 namespace TraceStreamer {
21 namespace {
22 enum Index { ID = 0, CLOCK_ID, TS, CLOCK_NAME };
23 }
ClockSnapShotTable(const TraceDataCache * dataCache)24 ClockSnapShotTable::ClockSnapShotTable(const TraceDataCache* dataCache) : TableBase(dataCache)
25 {
26 tableColumn_.push_back(TableBase::ColumnInfo("id", "INTEGER"));
27 tableColumn_.push_back(TableBase::ColumnInfo("clock_id", "INTEGER"));
28 tableColumn_.push_back(TableBase::ColumnInfo("ts", "INTEGER"));
29 tableColumn_.push_back(TableBase::ColumnInfo("clock_name", "TEXT"));
30 tablePriKey_.push_back("ts");
31 tablePriKey_.push_back("id");
32 }
33
~ClockSnapShotTable()34 ClockSnapShotTable::~ClockSnapShotTable() {}
35
CreateCursor()36 std::unique_ptr<TableBase::Cursor> ClockSnapShotTable::CreateCursor()
37 {
38 return std::make_unique<Cursor>(dataCache_, this);
39 }
40
Cursor(const TraceDataCache * dataCache,TableBase * table)41 ClockSnapShotTable::Cursor::Cursor(const TraceDataCache* dataCache, TableBase* table)
42 : TableBase::Cursor(dataCache, table, static_cast<uint32_t>(dataCache->GetConstClockSnapshotData().Size())),
43 snapShotData_(dataCache->GetConstClockSnapshotData())
44 {
45 }
46
~Cursor()47 ClockSnapShotTable::Cursor::~Cursor() {}
48
Column(int column) const49 int ClockSnapShotTable::Cursor::Column(int column) const
50 {
51 switch (column) {
52 case ID:
53 sqlite3_result_int64(context_, CurrentRow());
54 break;
55 case CLOCK_ID:
56 sqlite3_result_int64(context_, static_cast<int64_t>(snapShotData_.ClockIds()[CurrentRow()]));
57 break;
58 case TS:
59 sqlite3_result_int64(context_, static_cast<int64_t>(snapShotData_.Ts()[CurrentRow()]));
60 break;
61 case CLOCK_NAME:
62 sqlite3_result_text(context_, snapShotData_.Names()[CurrentRow()].c_str(), STR_DEFAULT_LEN, nullptr);
63 break;
64 default:
65 TS_LOGF("Unregistered column : %d", column);
66 break;
67 }
68 return SQLITE_OK;
69 }
70 } // namespace TraceStreamer
71 } // namespace SysTuning
72