1 /*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "src/trace_processor/stats_table.h"
18
19 #include "src/trace_processor/sqlite_utils.h"
20
21 namespace perfetto {
22 namespace trace_processor {
23
StatsTable(sqlite3 *,const TraceStorage * storage)24 StatsTable::StatsTable(sqlite3*, const TraceStorage* storage)
25 : storage_(storage) {}
26
RegisterTable(sqlite3 * db,const TraceStorage * storage)27 void StatsTable::RegisterTable(sqlite3* db, const TraceStorage* storage) {
28 Table::Register<StatsTable>(db, storage, "stats");
29 }
30
Init(int,const char * const *)31 base::Optional<Table::Schema> StatsTable::Init(int, const char* const*) {
32 return Schema(
33 {
34 Table::Column(Column::kName, "name", ColumnType::kString),
35 // Calling a column "index" causes sqlite to silently fail, hence idx.
36 Table::Column(Column::kIndex, "idx", ColumnType::kUint),
37 Table::Column(Column::kSeverity, "severity", ColumnType::kString),
38 Table::Column(Column::kSource, "source", ColumnType::kString),
39 Table::Column(Column::kValue, "value", ColumnType::kLong),
40 },
41 {Column::kName});
42 }
43
CreateCursor()44 std::unique_ptr<Table::Cursor> StatsTable::CreateCursor() {
45 return std::unique_ptr<Table::Cursor>(new Cursor(this));
46 }
47
BestIndex(const QueryConstraints &,BestIndexInfo *)48 int StatsTable::BestIndex(const QueryConstraints&, BestIndexInfo*) {
49 return SQLITE_OK;
50 }
51
Cursor(StatsTable * table)52 StatsTable::Cursor::Cursor(StatsTable* table)
53 : Table::Cursor(table), table_(table), storage_(table->storage_) {}
54
Filter(const QueryConstraints &,sqlite3_value **)55 int StatsTable::Cursor::Filter(const QueryConstraints&, sqlite3_value**) {
56 *this = Cursor(table_);
57 return SQLITE_OK;
58 }
59
Column(sqlite3_context * ctx,int N)60 int StatsTable::Cursor::Column(sqlite3_context* ctx, int N) {
61 const auto kSqliteStatic = sqlite_utils::kSqliteStatic;
62 switch (N) {
63 case Column::kName:
64 sqlite3_result_text(ctx, stats::kNames[key_], -1, kSqliteStatic);
65 break;
66 case Column::kIndex:
67 if (stats::kTypes[key_] == stats::kIndexed) {
68 sqlite3_result_int(ctx, index_->first);
69 } else {
70 sqlite3_result_null(ctx);
71 }
72 break;
73 case Column::kSeverity:
74 switch (stats::kSeverities[key_]) {
75 case stats::kInfo:
76 sqlite3_result_text(ctx, "info", -1, kSqliteStatic);
77 break;
78 case stats::kError:
79 sqlite3_result_text(ctx, "error", -1, kSqliteStatic);
80 break;
81 }
82 break;
83 case Column::kSource:
84 switch (stats::kSources[key_]) {
85 case stats::kTrace:
86 sqlite3_result_text(ctx, "trace", -1, kSqliteStatic);
87 break;
88 case stats::kAnalysis:
89 sqlite3_result_text(ctx, "analysis", -1, kSqliteStatic);
90 break;
91 }
92 break;
93 case Column::kValue:
94 if (stats::kTypes[key_] == stats::kIndexed) {
95 sqlite3_result_int64(ctx, index_->second);
96 } else {
97 sqlite3_result_int64(ctx, storage_->stats()[key_].value);
98 }
99 break;
100 default:
101 PERFETTO_FATAL("Unknown column %d", N);
102 break;
103 }
104 return SQLITE_OK;
105 }
106
Next()107 int StatsTable::Cursor::Next() {
108 static_assert(stats::kTypes[0] == stats::kSingle,
109 "the first stats entry cannot be indexed");
110 const auto* cur_entry = &storage_->stats()[key_];
111 if (stats::kTypes[key_] == stats::kIndexed) {
112 if (++index_ != cur_entry->indexed_values.end()) {
113 return SQLITE_OK;
114 }
115 }
116 while (++key_ < stats::kNumKeys) {
117 cur_entry = &storage_->stats()[key_];
118 index_ = cur_entry->indexed_values.begin();
119 if (stats::kTypes[key_] == stats::kSingle ||
120 !cur_entry->indexed_values.empty()) {
121 break;
122 }
123 }
124 return SQLITE_OK;
125 }
126
Eof()127 int StatsTable::Cursor::Eof() {
128 return key_ >= stats::kNumKeys;
129 }
130
131 } // namespace trace_processor
132 } // namespace perfetto
133