1 /* 2 * BlockBufferedFileBinaryOutputPort.h - <file binary output port> 3 * 4 * Copyright (c) 2008 Higepon(Taro Minowa) <higepon@users.sourceforge.jp> 5 * Copyright (c) 2009 Kokosabu(MIURA Yasuyuki) <kokosabu@gmail.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 24 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 26 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * $Id$ 31 */ 32 33 #ifndef SCHEME_BLOCK_BUFFERED_FILE_BINARY_OUTPUT_PORT_ 34 #define SCHEME_BLOCK_BUFFERED_FILE_BINARY_OUTPUT_PORT_ 35 36 #include "BufferedFileBinaryOutputPort.h" 37 38 namespace scheme { 39 40 class BlockBufferedFileBinaryOutputPort : public BufferedFileBinaryOutputPort 41 { 42 public: BlockBufferedFileBinaryOutputPort(File * file)43 BlockBufferedFileBinaryOutputPort(File* file) : BufferedFileBinaryOutputPort(file) {} BlockBufferedFileBinaryOutputPort(ucs4string file)44 BlockBufferedFileBinaryOutputPort(ucs4string file) : BufferedFileBinaryOutputPort(file) {} BlockBufferedFileBinaryOutputPort(ucs4string file,int openFlags)45 BlockBufferedFileBinaryOutputPort(ucs4string file, int openFlags) : BufferedFileBinaryOutputPort(file, openFlags) {} ~BlockBufferedFileBinaryOutputPort()46 virtual ~BlockBufferedFileBinaryOutputPort() {} 47 bufferMode()48 virtual enum bufferMode bufferMode() const 49 { 50 return BLOCK; 51 } 52 53 protected: writeToBuffer(uint8_t * data,int64_t reqSize)54 int64_t writeToBuffer(uint8_t* data, int64_t reqSize) 55 { 56 int64_t writeSize = 0; 57 while (writeSize < reqSize) { 58 MOSH_ASSERT(BUF_SIZE >= bufIdx_); 59 const int64_t bufDiff = BUF_SIZE - bufIdx_; 60 MOSH_ASSERT(reqSize > writeSize); 61 const int64_t sizeDiff = reqSize - writeSize; 62 if (bufDiff >= sizeDiff) { 63 moshMemcpy(buffer_+bufIdx_, data+writeSize, sizeDiff); 64 bufIdx_ += sizeDiff; 65 writeSize += sizeDiff; 66 } else { 67 moshMemcpy(buffer_+bufIdx_, data+writeSize, bufDiff); 68 bufIdx_ += bufDiff; 69 writeSize += bufDiff; 70 flush(); 71 } 72 } 73 return writeSize; 74 } 75 }; 76 77 } // namespace scheme 78 79 #endif // SCHEME_LINE_BUFFERED_FILE_BINARY_OUTPUT_PORT_ 80