1 /* 2 * Copyright (C) 2018 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 "Reporter.h" 20 21 #include <utils/RefBase.h> 22 23 #include <vector> 24 #include <unistd.h> 25 26 namespace android { 27 namespace os { 28 namespace incidentd { 29 30 /** 31 * This is a size-based throttler which prevents incidentd to take more data. 32 */ 33 class Throttler : public virtual android::RefBase { 34 public: 35 Throttler(size_t limit, int64_t refractoryPeriodMs); 36 ~Throttler(); 37 38 /** 39 * Return a batch containing reports, if any that should be executed. 40 * Those will be removed from 'queued'. 41 */ 42 sp<ReportBatch> filterBatch(const sp<ReportBatch>& queued); 43 44 bool shouldThrottle(); 45 46 void addReportSize(size_t reportByteSize); 47 48 void dump(FILE* out); 49 50 private: 51 const size_t mSizeLimit; 52 const int64_t mRefractoryPeriodMs; 53 54 size_t mAccumulatedSize; 55 int64_t mLastRefractoryMs; 56 }; 57 58 } // namespace incidentd 59 } // namespace os 60 } // namespace android 61
