1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "buffer_manager.h" 17 #include <sys/time.h> 18 #include <cinttypes> 19 #include "buffer_pool.h" 20 21 namespace OHOS::Camera { GetInstance()22BufferManager* BufferManager::GetInstance() 23 { 24 static BufferManager manager; 25 return &manager; 26 } 27 GenerateBufferPoolId()28uint64_t BufferManager::GenerateBufferPoolId() 29 { 30 std::lock_guard<std::mutex> l(lock_); 31 32 struct timeval tv; 33 gettimeofday(&tv, NULL); 34 uint64_t id = static_cast<uint64_t>(tv.tv_sec) * 1000 * 1000 + tv.tv_usec; // 1000:usec 35 36 std::shared_ptr<IBufferPool> bufferPool = nullptr; 37 bufferPoolMap_[id] = bufferPool; 38 39 return id; 40 } 41 GetBufferPool(uint64_t id)42std::shared_ptr<IBufferPool> BufferManager::GetBufferPool(uint64_t id) 43 { 44 std::lock_guard<std::mutex> l(lock_); 45 46 if (bufferPoolMap_.find(id) == bufferPoolMap_.end()) { 47 return nullptr; 48 } 49 50 if (bufferPoolMap_[id].expired()) { 51 std::shared_ptr<IBufferPool> bufferPool = std::make_shared<BufferPool>(); 52 if (bufferPool == nullptr) { 53 CAMERA_LOGE("bufferPool is nullptr id: %{public}" PRIu64 "", id); 54 return nullptr; 55 } 56 bufferPoolMap_[id] = bufferPool; 57 bufferPool->SetId(id); 58 return bufferPool; 59 } 60 61 return bufferPoolMap_[id].lock(); 62 } 63 EraseBufferPoolMapById(uint64_t id)64void BufferManager::EraseBufferPoolMapById(uint64_t id) 65 { 66 std::lock_guard<std::mutex> l(lock_); 67 auto findIter = bufferPoolMap_.find(id); 68 if (findIter != bufferPoolMap_.end()) { 69 bufferPoolMap_.erase(findIter); 70 } 71 } 72 } // namespace OHOS::Camera 73