1 /* 2 * Copyright (c) 2022 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 #ifndef CIRCLE_STEREAM_BUFFER_H 16 #define CIRCLE_STEREAM_BUFFER_H 17 #include "stream_buffer.h" 18 19 namespace OHOS { 20 namespace MMI { 21 class CircleStreamBuffer : public StreamBuffer { 22 static constexpr OHOS::HiviewDFX::HiLogLabel LABEL = {LOG_CORE, MMI_LOG_DOMAIN, "CircleStreamBuffer"}; 23 public: 24 CircleStreamBuffer() = default; 25 virtual ~CircleStreamBuffer() = default; 26 DISALLOW_MOVE(CircleStreamBuffer); 27 28 bool CheckWrite(size_t size); 29 virtual bool Write(const char *buf, size_t size) override; 30 31 protected: 32 void CopyDataToBegin(); 33 }; 34 } // namespace MMI 35 } // namespace OHOS 36 #endif // CIRCLE_STEREAM_BUFFER_H