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_filter.h"
17 #include <algorithm>
18 #include <map>
19 #include <cinttypes>
20 #include "log.h"
21 #include "string_help.h"
22 #include "ts_common.h"
23
24 namespace SysTuning {
25 namespace TraceStreamer {
ClockFilter()26 ClockFilter::ClockFilter() : hasInitSnapShot_(false) {}
~ClockFilter()27 ClockFilter::~ClockFilter() {}
28
GenClockKey(ClockId srcClockId,ClockId desClockId)29 std::string ClockFilter::GenClockKey(ClockId srcClockId, ClockId desClockId)
30 {
31 std::string ret;
32 ret += std::to_string(srcClockId);
33 ret += ",";
34 ret += std::to_string(desClockId);
35 return ret;
36 }
37
ToPrimaryTraceTime(ClockId srcClockId,uint64_t srcTs) const38 uint64_t ClockFilter::ToPrimaryTraceTime(ClockId srcClockId, uint64_t srcTs) const
39 {
40 if (srcClockId == g_primaryClockId) {
41 return srcTs;
42 }
43 return Convert(srcClockId, srcTs, g_primaryClockId);
44 }
45
Convert(ClockId srcClockId,uint64_t srcTs,ClockId desClockId) const46 uint64_t ClockFilter::Convert(ClockId srcClockId, uint64_t srcTs, ClockId desClockId) const
47 {
48 std::string&& clockKey = GenClockKey(srcClockId, desClockId);
49 auto keyIt = clockMaps_.find(clockKey);
50 if (keyIt == clockMaps_.end()) {
51 return srcTs;
52 }
53
54 auto tsIt = keyIt->second.upper_bound(srcTs);
55 if (tsIt != keyIt->second.begin()) {
56 tsIt--;
57 }
58
59 if (tsIt->second >= 0) {
60 return srcTs + static_cast<uint64_t>(tsIt->second);
61 } else {
62 return srcTs - static_cast<uint64_t>(0 - tsIt->second);
63 }
64 }
65
AddConvertClockMap(ClockId srcClockId,ClockId dstClockId,uint64_t srcTs,uint64_t dstTs)66 void ClockFilter::AddConvertClockMap(ClockId srcClockId, ClockId dstClockId, uint64_t srcTs, uint64_t dstTs)
67 {
68 std::string&& clockKey = GenClockKey(srcClockId, dstClockId);
69 auto keyIt = clockMaps_.find(clockKey);
70 if (keyIt == clockMaps_.end()) {
71 ConvertClockMap newConvertMap = {{srcTs, dstTs - srcTs}};
72 clockMaps_[clockKey] = newConvertMap;
73 } else {
74 clockMaps_[clockKey].insert(std::make_pair(srcTs, dstTs - srcTs));
75 }
76 }
AddClockSnapshot(const std::vector<SnapShot> & snapShot)77 void ClockFilter::AddClockSnapshot(const std::vector<SnapShot>& snapShot)
78 {
79 ClockId srcId;
80 ClockId desId;
81 for (srcId = 0; srcId < snapShot.size() - 1; srcId++) {
82 ClockId srcClockId = snapShot[srcId].clockId;
83 uint64_t srcTs = snapShot[srcId].ts;
84 for (desId = srcId + 1; desId < snapShot.size(); desId++) {
85 ClockId desClockId = snapShot[desId].clockId;
86 uint64_t desTs = snapShot[desId].ts;
87 AddConvertClockMap(srcClockId, desClockId, srcTs, desTs);
88 AddConvertClockMap(desClockId, srcClockId, desTs, srcTs);
89 }
90 }
91 hasInitSnapShot_ = true;
92 }
93
InitSnapShotTimeRange(const uint8_t * data,int32_t len)94 int32_t ClockFilter::InitSnapShotTimeRange(const uint8_t* data, int32_t len)
95 {
96 if (HasInitSnapShot()) {
97 TS_LOGE("SDK already has clock snapshot!!!");
98 return -1;
99 }
100 std::unique_ptr<uint8_t[]> buf = std::make_unique<uint8_t[]>(len);
101 std::copy(data, data + len, buf.get());
102 profilerSDKTraceFileHeader_ = reinterpret_cast<ProfilerTraceFileHeader*>(buf.get());
103 if (!profilerSDKTraceFileHeader_->data.boottime) {
104 TS_LOGE("SDK Profiler header has no clock snapshot!!!");
105 return -1;
106 }
107
108 std::vector<SnapShot> snapShot;
109
110 TS_LOGI("SDK clockid: TS_CLOCK_BOOTTIME, ts:%" PRIu64 " ", profilerSDKTraceFileHeader_->data.boottime);
111 if (profilerSDKTraceFileHeader_->data.boottime != 0) {
112 snapShot.push_back(SnapShot{TS_CLOCK_BOOTTIME, profilerSDKTraceFileHeader_->data.boottime});
113 }
114
115 TS_LOGI("SDK clockid: TS_CLOCK_REALTIME, ts:%" PRIu64 "", profilerSDKTraceFileHeader_->data.realtime);
116 if (profilerSDKTraceFileHeader_->data.realtime != 0) {
117 snapShot.push_back(SnapShot{TS_CLOCK_REALTIME, profilerSDKTraceFileHeader_->data.realtime});
118 }
119
120 TS_LOGI("SDK clockid: TS_CLOCK_REALTIME_COARSE, ts:%" PRIu64 "", profilerSDKTraceFileHeader_->data.realtimeCoarse);
121 if (profilerSDKTraceFileHeader_->data.realtimeCoarse != 0) {
122 snapShot.push_back(SnapShot{TS_CLOCK_REALTIME_COARSE, profilerSDKTraceFileHeader_->data.realtimeCoarse});
123 }
124
125 TS_LOGI("SDK clockid: TS_MONOTONIC, ts:%" PRIu64 "", profilerSDKTraceFileHeader_->data.monotonic);
126 if (profilerSDKTraceFileHeader_->data.monotonic != 0) {
127 snapShot.push_back(SnapShot{TS_MONOTONIC, profilerSDKTraceFileHeader_->data.monotonic});
128 }
129
130 TS_LOGI("SDK clockid: TS_MONOTONIC_COARSE, ts:%" PRIu64 "", profilerSDKTraceFileHeader_->data.monotonicCoarse);
131 if (profilerSDKTraceFileHeader_->data.monotonicCoarse != 0) {
132 snapShot.push_back(SnapShot{TS_MONOTONIC_COARSE, profilerSDKTraceFileHeader_->data.monotonicCoarse});
133 }
134
135 TS_LOGI("SDK clockid: TS_MONOTONIC_RAW, ts:%" PRIu64 "", profilerSDKTraceFileHeader_->data.monotonicRaw);
136 if (profilerSDKTraceFileHeader_->data.monotonicRaw != 0) {
137 snapShot.push_back(SnapShot{TS_MONOTONIC_RAW, profilerSDKTraceFileHeader_->data.monotonicRaw});
138 }
139
140 if (!snapShot.empty()) {
141 AddClockSnapshot(snapShot);
142 }
143 return 0;
144 }
145 } // namespace TraceStreamer
146 } // namespace SysTuning
147