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 <future> 30 31 #include <media/IMediaAnalyticsService.h> 32 33 namespace android { 34 35 class MediaAnalyticsService : public BnMediaAnalyticsService 36 { 37 38 public: 39 40 // on this side, caller surrenders ownership 41 virtual int64_t submit(MediaAnalyticsItem *item, bool forcenew); 42 43 static void instantiate(); 44 virtual status_t dump(int fd, const Vector<String16>& args); 45 46 MediaAnalyticsService(); 47 virtual ~MediaAnalyticsService(); 48 49 bool processExpirations(); 50 51 private: 52 MediaAnalyticsItem::SessionID_t generateUniqueSessionID(); 53 54 // statistics about our analytics 55 int64_t mItemsSubmitted; 56 int64_t mItemsFinalized; 57 int64_t mItemsDiscarded; 58 int64_t mItemsDiscardedExpire; 59 int64_t mItemsDiscardedCount; 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 // max to expire per expirations_l() invocation 73 int32_t mMaxRecordsExpiredAtOnce; 74 // 75 // # of sets of summaries 76 int32_t mMaxRecordSets; 77 // nsecs until we start a new record set 78 nsecs_t mNewSetInterval; 79 80 // input validation after arrival from client 81 bool contentValid(MediaAnalyticsItem *item, bool isTrusted); 82 bool rateLimited(MediaAnalyticsItem *); 83 84 // (oldest at front) so it prints nicely for dumpsys 85 List<MediaAnalyticsItem *> mItems; 86 void saveItem(MediaAnalyticsItem *); 87 88 bool expirations_l(MediaAnalyticsItem *); 89 std::future<bool> mExpireFuture; 90 91 // support for generating output 92 int mDumpProto; 93 int mDumpProtoDefault; 94 String8 dumpQueue(); 95 String8 dumpQueue(nsecs_t, const char *only); 96 97 void dumpHeaders(String8 &result, nsecs_t ts_since); 98 void dumpSummaries(String8 &result, nsecs_t ts_since, const char * only); 99 void dumpRecent(String8 &result, nsecs_t ts_since, const char * only); 100 101 // mapping uids to package names 102 struct UidToPkgMap { 103 uid_t uid; 104 std::string pkg; 105 std::string installer; 106 int64_t versionCode; 107 nsecs_t expiration; 108 }; 109 110 KeyedVector<uid_t,struct UidToPkgMap> mPkgMappings; 111 void setPkgInfo(MediaAnalyticsItem *item, uid_t uid, bool setName, bool setVersion); 112 113 }; 114 115 // hook to send things off to the statsd subsystem 116 extern bool dump2Statsd(MediaAnalyticsItem *item); 117 118 // ---------------------------------------------------------------------------- 119 120 }; // namespace android 121 122 #endif // ANDROID_MEDIAANALYTICSSERVICE_H 123
