1 /*
2 * Copyright (C) 2017 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 #pragma once
18
19 #include <android/util/ProtoOutputStream.h>
20 #include "FieldValue.h"
21 #include "HashableDimensionKey.h"
22 #include "frameworks/base/cmds/statsd/src/statsd_config.pb.h"
23 #include "guardrail/StatsdStats.h"
24
25 namespace android {
26 namespace os {
27 namespace statsd {
28
29 void writeFieldValueTreeToStream(int tagId, const std::vector<FieldValue>& values,
30 util::ProtoOutputStream* protoOutput);
31 void writeDimensionToProto(const HashableDimensionKey& dimension, std::set<string> *str_set,
32 util::ProtoOutputStream* protoOutput);
33
34 void writeDimensionLeafNodesToProto(const HashableDimensionKey& dimension,
35 const int dimensionLeafFieldId,
36 std::set<string> *str_set,
37 util::ProtoOutputStream* protoOutput);
38
39 void writeDimensionPathToProto(const std::vector<Matcher>& fieldMatchers,
40 util::ProtoOutputStream* protoOutput);
41
42 // Convert the TimeUnit enum to the bucket size in millis with a guardrail on
43 // bucket size.
44 int64_t TimeUnitToBucketSizeInMillisGuardrailed(int uid, TimeUnit unit);
45
46 // Convert the TimeUnit enum to the bucket size in millis.
47 int64_t TimeUnitToBucketSizeInMillis(TimeUnit unit);
48
49 // Gets the elapsed timestamp in ns.
50 int64_t getElapsedRealtimeNs();
51
52 // Gets the elapsed timestamp in millis.
53 int64_t getElapsedRealtimeMillis();
54
55 // Gets the elapsed timestamp in seconds.
56 int64_t getElapsedRealtimeSec();
57
58 // Gets the wall clock timestamp in ns.
59 int64_t getWallClockNs();
60
61 // Gets the wall clock timestamp in millis.
62 int64_t getWallClockMillis();
63
64 // Gets the wall clock timestamp in seconds.
65 int64_t getWallClockSec();
66
67 int64_t NanoToMillis(const int64_t nano);
68
69 int64_t MillisToNano(const int64_t millis);
70
71 // Helper function to write PulledAtomStats to ProtoOutputStream
72 void writePullerStatsToStream(const std::pair<int, StatsdStats::PulledAtomStats>& pair,
73 util::ProtoOutputStream* protoOutput);
74
75 template<class T>
parseProtoOutputStream(util::ProtoOutputStream & protoOutput,T * message)76 bool parseProtoOutputStream(util::ProtoOutputStream& protoOutput, T* message) {
77 std::string pbBytes;
78 auto iter = protoOutput.data();
79 while (iter.readBuffer() != NULL) {
80 size_t toRead = iter.currentToRead();
81 pbBytes.append(reinterpret_cast<const char*>(iter.readBuffer()), toRead);
82 iter.rp()->move(toRead);
83 }
84 return message->ParseFromArray(pbBytes.c_str(), pbBytes.size());
85 }
86
87 // Returns the truncated timestamp.
88 int64_t truncateTimestampNsToFiveMinutes(int64_t timestampNs);
89
90 } // namespace statsd
91 } // namespace os
92 } // namespace android
93