1 /* 2 * Copyright (C) 2025 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 #ifndef DMA_SWAP_H 17 #define DMA_SWAP_H 18 19 #include <sys/types.h> 20 21 namespace OHOS { 22 namespace MediaAVCodec { 23 namespace Codec { 24 struct DmaBufIoctlSwPara { 25 pid_t pid; 26 unsigned long ino; 27 unsigned int fd; 28 }; 29 30 class DmaSwaper { 31 public: 32 int32_t SwapOutDma(pid_t pid, int32_t bufFd); 33 int32_t SwapInDma(pid_t pid, int32_t bufFd); 34 static DmaSwaper &GetInstance(); 35 36 private: 37 DmaSwaper(); 38 ~DmaSwaper(); 39 DmaSwaper(const DmaSwaper &dmaSwaper) = delete; 40 const DmaSwaper &operator=(const DmaSwaper &dmaSwaper) = delete; 41 int32_t reclaimDriverFd_ = -1; 42 }; 43 } // namespace Codec 44 } // namespace MediaAVCodec 45 } // namespace OHOS 46 #endif