1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/*
* Copyright (C) 2018 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.
*/
#ifndef SRC_TRACE_PROCESSOR_TRACE_PROCESSOR_IMPL_H_
#define SRC_TRACE_PROCESSOR_TRACE_PROCESSOR_IMPL_H_
#include <sqlite3.h>
#include <atomic>
#include <functional>
#include <string>
#include <vector>
#include "perfetto/ext/base/string_view.h"
#include "perfetto/trace_processor/basic_types.h"
#include "perfetto/trace_processor/status.h"
#include "perfetto/trace_processor/trace_processor.h"
#include "src/trace_processor/sqlite/scoped_db.h"
#include "src/trace_processor/trace_processor_storage_impl.h"
#include "src/trace_processor/descriptors.h"
#include "src/trace_processor/metrics/metrics.h"
namespace perfetto {
namespace trace_processor {
// Coordinates the loading of traces from an arbitrary source and allows
// execution of SQL queries on the events in these traces.
class TraceProcessorImpl : public TraceProcessor,
public TraceProcessorStorageImpl {
public:
explicit TraceProcessorImpl(const Config&);
~TraceProcessorImpl() override;
// TraceProcessorStorage implementation:
util::Status Parse(std::unique_ptr<uint8_t[]>, size_t) override;
void NotifyEndOfFile() override;
// TraceProcessor implementation:
Iterator ExecuteQuery(const std::string& sql,
int64_t time_queued = 0) override;
util::Status RegisterMetric(const std::string& path,
const std::string& sql) override;
util::Status ExtendMetricsProto(const uint8_t* data, size_t size) override;
util::Status ComputeMetric(const std::vector<std::string>& metric_names,
std::vector<uint8_t>* metrics) override;
void InterruptQuery() override;
size_t RestoreInitialTables() override;
std::string GetCurrentTraceName() override;
void SetCurrentTraceName(const std::string&) override;
private:
// Needed for iterators to be able to delete themselves from the vector.
friend class IteratorImpl;
ScopedDb db_;
DescriptorPool pool_;
std::vector<metrics::SqlMetricFile> sql_metrics_;
std::vector<IteratorImpl*> iterators_;
// This is atomic because it is set by the CTRL-C signal handler and we need
// to prevent single-flow compiler optimizations in ExecuteQuery().
std::atomic<bool> query_interrupted_{false};
// Keeps track of the tables created by the ingestion process. This is used
// by RestoreInitialTables() to delete all the tables/view that have been
// created after that point.
std::vector<std::string> initial_tables_;
std::string current_trace_name_;
uint64_t bytes_parsed_ = 0;
};
// The pointer implementation of TraceProcessor::Iterator.
class TraceProcessor::IteratorImpl {
public:
IteratorImpl(TraceProcessorImpl* impl,
sqlite3* db,
ScopedStmt,
uint32_t column_count,
util::Status,
uint32_t sql_stats_row);
~IteratorImpl();
IteratorImpl(IteratorImpl&) noexcept = delete;
IteratorImpl& operator=(IteratorImpl&) = delete;
IteratorImpl(IteratorImpl&&) noexcept = default;
IteratorImpl& operator=(IteratorImpl&&) = default;
// Methods called by TraceProcessor::Iterator.
bool Next() {
// Delegate to the cc file to prevent trace_storage.h include in this
// file.
if (!called_next_) {
RecordFirstNextInSqlStats();
called_next_ = true;
}
if (!status_.ok())
return false;
int ret = sqlite3_step(*stmt_);
if (PERFETTO_UNLIKELY(ret != SQLITE_ROW && ret != SQLITE_DONE)) {
status_ = util::ErrStatus("%s", sqlite3_errmsg(db_));
return false;
}
return ret == SQLITE_ROW;
}
SqlValue Get(uint32_t col) {
auto column = static_cast<int>(col);
auto col_type = sqlite3_column_type(*stmt_, column);
SqlValue value;
switch (col_type) {
case SQLITE_INTEGER:
value.type = SqlValue::kLong;
value.long_value = sqlite3_column_int64(*stmt_, column);
break;
case SQLITE_TEXT:
value.type = SqlValue::kString;
value.string_value =
reinterpret_cast<const char*>(sqlite3_column_text(*stmt_, column));
break;
case SQLITE_FLOAT:
value.type = SqlValue::kDouble;
value.double_value = sqlite3_column_double(*stmt_, column);
break;
case SQLITE_BLOB:
value.type = SqlValue::kBytes;
value.bytes_value = sqlite3_column_blob(*stmt_, column);
value.bytes_count =
static_cast<size_t>(sqlite3_column_bytes(*stmt_, column));
break;
case SQLITE_NULL:
value.type = SqlValue::kNull;
break;
}
return value;
}
std::string GetColumnName(uint32_t col) {
return sqlite3_column_name(stmt_.get(), static_cast<int>(col));
}
uint32_t ColumnCount() { return column_count_; }
util::Status Status() { return status_; }
// Methods called by TraceProcessorImpl.
void Reset();
private:
void RecordFirstNextInSqlStats();
TraceProcessorImpl* trace_processor_;
sqlite3* db_ = nullptr;
ScopedStmt stmt_;
uint32_t column_count_ = 0;
util::Status status_;
uint32_t sql_stats_row_ = 0;
bool called_next_ = false;
};
} // namespace trace_processor
} // namespace perfetto
#endif // SRC_TRACE_PROCESSOR_TRACE_PROCESSOR_IMPL_H_
|
