Sungtak Lee | 76937c6 | 2022-12-07 11:42:03 +0000 | [diff] [blame] | 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 | #pragma once |
| 18 | |
| 19 | #include <aidl/android/hardware/media/bufferpool2/BufferStatusMessage.h> |
| 20 | #include <bufferpool2/BufferPoolTypes.h> |
| 21 | |
| 22 | #include <map> |
| 23 | #include <set> |
| 24 | |
| 25 | namespace aidl::android::hardware::media::bufferpool2::implementation { |
| 26 | |
| 27 | // Helper template methods for handling map of set. |
| 28 | template<class T, class U> |
| 29 | bool insert(std::map<T, std::set<U>> *mapOfSet, T key, U value) { |
| 30 | auto iter = mapOfSet->find(key); |
| 31 | if (iter == mapOfSet->end()) { |
| 32 | std::set<U> valueSet{value}; |
| 33 | mapOfSet->insert(std::make_pair(key, valueSet)); |
| 34 | return true; |
| 35 | } else if (iter->second.find(value) == iter->second.end()) { |
| 36 | iter->second.insert(value); |
| 37 | return true; |
| 38 | } |
| 39 | return false; |
| 40 | } |
| 41 | |
| 42 | // Helper template methods for handling map of set. |
| 43 | template<class T, class U> |
| 44 | bool erase(std::map<T, std::set<U>> *mapOfSet, T key, U value) { |
| 45 | bool ret = false; |
| 46 | auto iter = mapOfSet->find(key); |
| 47 | if (iter != mapOfSet->end()) { |
| 48 | if (iter->second.erase(value) > 0) { |
| 49 | ret = true; |
| 50 | } |
| 51 | if (iter->second.size() == 0) { |
| 52 | mapOfSet->erase(iter); |
| 53 | } |
| 54 | } |
| 55 | return ret; |
| 56 | } |
| 57 | |
| 58 | // Helper template methods for handling map of set. |
| 59 | template<class T, class U> |
| 60 | bool contains(std::map<T, std::set<U>> *mapOfSet, T key, U value) { |
| 61 | auto iter = mapOfSet->find(key); |
| 62 | if (iter != mapOfSet->end()) { |
| 63 | auto setIter = iter->second.find(value); |
| 64 | return setIter != iter->second.end(); |
| 65 | } |
| 66 | return false; |
| 67 | } |
| 68 | |
| 69 | // Buffer data structure for internal BufferPool use.(storage/fetching) |
| 70 | struct InternalBuffer { |
| 71 | BufferId mId; |
| 72 | size_t mOwnerCount; |
| 73 | size_t mTransactionCount; |
| 74 | const std::shared_ptr<BufferPoolAllocation> mAllocation; |
| 75 | const size_t mAllocSize; |
| 76 | const std::vector<uint8_t> mConfig; |
| 77 | bool mInvalidated; |
| 78 | |
| 79 | InternalBuffer( |
| 80 | BufferId id, |
| 81 | const std::shared_ptr<BufferPoolAllocation> &alloc, |
| 82 | const size_t allocSize, |
| 83 | const std::vector<uint8_t> &allocConfig) |
| 84 | : mId(id), mOwnerCount(0), mTransactionCount(0), |
| 85 | mAllocation(alloc), mAllocSize(allocSize), mConfig(allocConfig), |
| 86 | mInvalidated(false) {} |
| 87 | |
| 88 | const native_handle_t *handle() { |
| 89 | return mAllocation->handle(); |
| 90 | } |
| 91 | |
| 92 | void invalidate() { |
| 93 | mInvalidated = true; |
| 94 | } |
| 95 | }; |
| 96 | |
| 97 | // Buffer transacion status/message data structure for internal BufferPool use. |
| 98 | struct TransactionStatus { |
| 99 | TransactionId mId; |
| 100 | BufferId mBufferId; |
| 101 | ConnectionId mSender; |
| 102 | ConnectionId mReceiver; |
| 103 | BufferStatus mStatus; |
| 104 | int64_t mTimestampMs; |
| 105 | bool mSenderValidated; |
| 106 | |
| 107 | TransactionStatus(const BufferStatusMessage &message, int64_t timestampMs) { |
| 108 | mId = message.transactionId; |
| 109 | mBufferId = message.bufferId; |
| 110 | mStatus = message.status; |
| 111 | mTimestampMs = timestampMs; |
| 112 | if (mStatus == BufferStatus::TRANSFER_TO) { |
| 113 | mSender = message.connectionId; |
| 114 | mReceiver = message.targetConnectionId; |
| 115 | mSenderValidated = true; |
| 116 | } else { |
| 117 | mSender = -1LL; |
| 118 | mReceiver = message.connectionId; |
| 119 | mSenderValidated = false; |
| 120 | } |
| 121 | } |
| 122 | }; |
| 123 | |
| 124 | } // namespace aidl::android::hardware::media::bufferpool2::implementation |