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 18 #ifndef ANDROID_MEDIAANALYTICSSERVICE_H 19 #define ANDROID_MEDIAANALYTICSSERVICE_H 20 21 #include <arpa/inet.h> 22 23 #include <utils/threads.h> 24 #include <utils/Errors.h> 25 #include <utils/KeyedVector.h> 26 #include <utils/String8.h> 27 #include <utils/List.h> 28 29 #include <media/IMediaAnalyticsService.h> 30 31 #include "MetricsSummarizer.h" 32 33 34 namespace android { 35 36 class MediaAnalyticsService : public BnMediaAnalyticsService 37 { 38 39 public: 40 41 // on this side, caller surrenders ownership 42 virtual int64_t submit(MediaAnalyticsItem *item, bool forcenew); 43 44 static void instantiate(); 45 virtual status_t dump(int fd, const Vector<String16>& args); 46 47 MediaAnalyticsService(); 48 virtual ~MediaAnalyticsService(); 49 50 private: 51 MediaAnalyticsItem::SessionID_t generateUniqueSessionID(); 52 53 // statistics about our analytics 54 int64_t mItemsSubmitted; 55 int64_t mItemsFinalized; 56 int64_t mItemsDiscarded; 57 int64_t mItemsDiscardedExpire; 58 int64_t mItemsDiscardedCount; 59 int64_t mSetsDiscarded; 60 MediaAnalyticsItem::SessionID_t mLastSessionID; 61 62 // partitioned a bit so we don't over serialize 63 mutable Mutex mLock; 64 mutable Mutex mLock_ids; 65 mutable Mutex mLock_mappings; 66 67 // limit how many records we'll retain 68 // by count (in each queue (open, finalized)) 69 int32_t mMaxRecords; 70 // by time (none older than this long agan 71 nsecs_t mMaxRecordAgeNs; 72 // 73 // # of sets of summaries 74 int32_t mMaxRecordSets; 75 // nsecs until we start a new record set 76 nsecs_t mNewSetInterval; 77 78 // input validation after arrival from client 79 bool contentValid(MediaAnalyticsItem *item, bool isTrusted); 80 bool rateLimited(MediaAnalyticsItem *); 81 82 // the ones that are still open 83 // (newest at front) since we keep looking for them 84 List<MediaAnalyticsItem *> *mOpen; 85 // the ones we've finalized 86 // (oldest at front) so it prints nicely for dumpsys 87 List<MediaAnalyticsItem *> *mFinalized; 88 // searching within these queues: queue, key 89 MediaAnalyticsItem *findItem(List<MediaAnalyticsItem *> *, 90 MediaAnalyticsItem *, bool removeit); 91 92 // summarizers 93 void summarize(MediaAnalyticsItem *item); 94 class SummarizerSet { 95 nsecs_t mStarted; 96 List<MetricsSummarizer *> *mSummarizers; 97 98 public: 99 void appendSummarizer(MetricsSummarizer *s) { 100 if (s) { 101 mSummarizers->push_back(s); 102 } 103 }; 104 nsecs_t getStarted() { return mStarted;} 105 void setStarted(nsecs_t started) {mStarted = started;} 106 List<MetricsSummarizer *> *getSummarizers() { return mSummarizers;} 107 108 SummarizerSet(); 109 ~SummarizerSet(); 110 }; 111 void newSummarizerSet(); 112 List<SummarizerSet *> *mSummarizerSets; 113 SummarizerSet *mCurrentSet; 114 List<MetricsSummarizer *> *getFirstSet() { 115 List<SummarizerSet *>::iterator first = mSummarizerSets->begin(); 116 if (first != mSummarizerSets->end()) { 117 return (*first)->getSummarizers(); 118 } 119 return NULL; 120 } 121 122 void saveItem(MediaAnalyticsItem); 123 void saveItem(List<MediaAnalyticsItem *> *, MediaAnalyticsItem *, int); 124 void deleteItem(List<MediaAnalyticsItem *> *, MediaAnalyticsItem *); 125 126 // support for generating output 127 int mDumpProto; 128 String8 dumpQueue(List<MediaAnalyticsItem*> *); 129 String8 dumpQueue(List<MediaAnalyticsItem*> *, nsecs_t, const char *only); 130 131 void dumpHeaders(String8 &result, nsecs_t ts_since); 132 void dumpSummaries(String8 &result, nsecs_t ts_since, const char * only); 133 void dumpRecent(String8 &result, nsecs_t ts_since, const char * only); 134 135 // mapping uids to package names 136 struct UidToPkgMap { 137 uid_t uid; 138 AString pkg; 139 AString installer; 140 int32_t versionCode; 141 nsecs_t expiration; 142 }; 143 144 KeyedVector<uid_t,struct UidToPkgMap> mPkgMappings; 145 void setPkgInfo(MediaAnalyticsItem *item, uid_t uid, bool setName, bool setVersion); 146 147 }; 148 149 // ---------------------------------------------------------------------------- 150 151 }; // namespace android 152 153 #endif // ANDROID_MEDIAANALYTICSSERVICE_H 154
