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 namespace android { 32 33 class MediaAnalyticsService : public BnMediaAnalyticsService 34 { 35 36 public: 37 38 // on this side, caller surrenders ownership 39 virtual int64_t submit(MediaAnalyticsItem *item, bool forcenew); 40 41 static void instantiate(); 42 virtual status_t dump(int fd, const Vector<String16>& args); 43 44 MediaAnalyticsService(); 45 virtual ~MediaAnalyticsService(); 46 47 private: 48 MediaAnalyticsItem::SessionID_t generateUniqueSessionID(); 49 50 // statistics about our analytics 51 int64_t mItemsSubmitted; 52 int64_t mItemsFinalized; 53 int64_t mItemsDiscarded; 54 int64_t mItemsDiscardedExpire; 55 int64_t mItemsDiscardedCount; 56 MediaAnalyticsItem::SessionID_t mLastSessionID; 57 58 // partitioned a bit so we don't over serialize 59 mutable Mutex mLock; 60 mutable Mutex mLock_ids; 61 mutable Mutex mLock_mappings; 62 63 // limit how many records we'll retain 64 // by count (in each queue (open, finalized)) 65 int32_t mMaxRecords; 66 // by time (none older than this long agan 67 nsecs_t mMaxRecordAgeNs; 68 // 69 // # of sets of summaries 70 int32_t mMaxRecordSets; 71 // nsecs until we start a new record set 72 nsecs_t mNewSetInterval; 73 74 // input validation after arrival from client 75 bool contentValid(MediaAnalyticsItem *item, bool isTrusted); 76 bool rateLimited(MediaAnalyticsItem *); 77 78 // (oldest at front) so it prints nicely for dumpsys 79 List<MediaAnalyticsItem *> mItems; 80 void saveItem(MediaAnalyticsItem *); 81 82 // support for generating output 83 int mDumpProto; 84 int mDumpProtoDefault; 85 String8 dumpQueue(); 86 String8 dumpQueue(nsecs_t, const char *only); 87 88 void dumpHeaders(String8 &result, nsecs_t ts_since); 89 void dumpSummaries(String8 &result, nsecs_t ts_since, const char * only); 90 void dumpRecent(String8 &result, nsecs_t ts_since, const char * only); 91 92 // mapping uids to package names 93 struct UidToPkgMap { 94 uid_t uid; 95 std::string pkg; 96 std::string installer; 97 int64_t versionCode; 98 nsecs_t expiration; 99 }; 100 101 KeyedVector<uid_t,struct UidToPkgMap> mPkgMappings; 102 void setPkgInfo(MediaAnalyticsItem *item, uid_t uid, bool setName, bool setVersion); 103 104 }; 105 106 // ---------------------------------------------------------------------------- 107 108 }; // namespace android 109 110 #endif // ANDROID_MEDIAANALYTICSSERVICE_H 111
