1 /* 2 * Copyright (C) 2013 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 #ifndef ART_COMPILER_BUFFERED_OUTPUT_STREAM_H_ 18 #define ART_COMPILER_BUFFERED_OUTPUT_STREAM_H_ 19 20 #include "output_stream.h" 21 22 #include "globals.h" 23 24 namespace art { 25 26 class BufferedOutputStream : public OutputStream { 27 public: 28 explicit BufferedOutputStream(OutputStream* out); 29 ~BufferedOutputStream()30 virtual ~BufferedOutputStream() { 31 delete out_; 32 } 33 34 virtual bool WriteFully(const void* buffer, int64_t byte_count); 35 36 virtual off_t Seek(off_t offset, Whence whence); 37 38 private: 39 static const size_t kBufferSize = 8 * KB; 40 41 bool Flush(); 42 43 OutputStream* const out_; 44 45 uint8_t buffer_[kBufferSize]; 46 47 size_t used_; 48 49 DISALLOW_COPY_AND_ASSIGN(BufferedOutputStream); 50 }; 51 52 } // namespace art 53 54 #endif // ART_COMPILER_BUFFERED_OUTPUT_STREAM_H_ 55