1 /* 2 * Copyright (C) 2022 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 #include "chre/core/ble_request_multiplexer.h" 18 19 #include "chre/core/event_loop_manager.h" 20 21 namespace chre { 22 getMutableRequests()23DynamicVector<BleRequest> &BleRequestMultiplexer::getMutableRequests() { 24 return mRequests; 25 } 26 findRequest(uint16_t instanceId,size_t * index)27const BleRequest *BleRequestMultiplexer::findRequest(uint16_t instanceId, 28 size_t *index) { 29 for (size_t i = 0; i < mRequests.size(); ++i) { 30 if (mRequests[i].getInstanceId() == instanceId) { 31 if (index != nullptr) { 32 *index = i; 33 } 34 return &mRequests[i]; 35 } 36 } 37 return nullptr; 38 } 39 hasRequests(RequestStatus status) const40bool BleRequestMultiplexer::hasRequests(RequestStatus status) const { 41 for (const BleRequest &request : mRequests) { 42 if (request.getRequestStatus() == status) { 43 return true; 44 } 45 } 46 return false; 47 } 48 removeRequests(RequestStatus status)49void BleRequestMultiplexer::removeRequests(RequestStatus status) { 50 bool requestRemoved = false; 51 size_t index = 0; 52 while (index < mRequests.size()) { 53 if (mRequests[index].getRequestStatus() == status) { 54 mRequests.erase(index); 55 requestRemoved = true; 56 } else { 57 // Only increment index if nothing is erased since erasing moves later 58 // elements down a spot so keeping the index the same is safe. 59 index++; 60 } 61 } 62 63 if (requestRemoved) { 64 // Only update the maximal request after removing all needed requests to 65 // reduce allocations performed. 66 bool maximalRequestChanged = false; 67 updateMaximalRequest(&maximalRequestChanged); 68 } 69 } 70 removeDisabledRequests()71void BleRequestMultiplexer::removeDisabledRequests() { 72 size_t index = 0; 73 while (index < mRequests.size()) { 74 BleRequest &request = mRequests[index]; 75 if (!request.isEnabled() && 76 request.getRequestStatus() == RequestStatus::APPLIED) { 77 mRequests.erase(index); 78 } else { 79 // Only increment index if nothing is erased since erasing moves later 80 // elements down a spot so keeping the index the same is safe. 81 index++; 82 } 83 } 84 85 // No need to update the maximal request after removing since disabled 86 // requests don't affect the maximal request. 87 } 88 isMaximalRequestEnabled()89bool BleRequestMultiplexer::isMaximalRequestEnabled() { 90 return getCurrentMaximalRequest().isEnabled(); 91 } 92 93 } // namespace chre 94