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SWIbufferedOutputStream.cpp
上传用户:xqtpzdz
上传日期:2022-05-21
资源大小:1764k
文件大小:4k
源码类别:
xml/soap/webservice
开发平台:
Visual C++
- /****************License************************************************
- * Vocalocity OpenVXI
- * Copyright (C) 2004-2005 by Vocalocity, Inc. All Rights Reserved.
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- * Vocalocity, the Vocalocity logo, and VocalOS are trademarks or
- * registered trademarks of Vocalocity, Inc.
- * OpenVXI is a trademark of Scansoft, Inc. and used under license
- * by Vocalocity.
- ***********************************************************************/
- #include "SWIbufferedOutputStream.hpp"
- #include <cstdio>
- SWIbufferedOutputStream::SWIbufferedOutputStream(SWIoutputStream *outStream,
- int bufferSize,
- bool ownStream):
- SWIfilterOutputStream(outStream, ownStream),
- _buffer(NULL), _pos(NULL), _end(NULL)
- {
- if (bufferSize < 1) bufferSize = 1;
- _buffer = new char[bufferSize];
- _pos = _buffer;
- _end = _pos + bufferSize;
- }
- SWIbufferedOutputStream::~SWIbufferedOutputStream()
- {
- flush();
- if (isOwner()) close();
- }
- SWIstream::Result SWIbufferedOutputStream::close()
- {
- Result rc1 = flush();
- Result rc2 = SWIfilterOutputStream::close();
- delete [] _buffer;
- _pos = _end = _buffer = NULL;
- return rc1 == SUCCESS ? rc2 : rc1;
- }
- int SWIbufferedOutputStream::writeBytes(const void *data, int dataSize)
- {
- if (_buffer == NULL) return SWIstream::ILLEGAL_STATE;
- const char *p = static_cast<const char *>(data);
- const char *q = p + dataSize;
- int nbWritten = 0;
- while (p < q)
- {
- while (_pos < _end && p < q)
- {
- *_pos++ = *p++;
- nbWritten++;
- }
- SWIstream::Result rc;
- if (p < q && (rc = flushBuffer()) != SWIstream::SUCCESS)
- return rc;
- }
- return nbWritten;
- }
- SWIstream::Result SWIbufferedOutputStream::printString(const char *s)
- {
- if (_buffer == NULL) return SWIstream::ILLEGAL_STATE;
- const char *p = s;
- while (*p)
- {
- while (_pos < _end && *p) *_pos++ = *p++;
- SWIstream::Result rc;
- if (*p && (rc = flushBuffer()) != SWIstream::SUCCESS)
- return rc;
- }
- return SWIstream::SUCCESS;
- }
- SWIstream::Result SWIbufferedOutputStream::printChar(char c)
- {
- if (_buffer == NULL) return SWIstream::ILLEGAL_STATE;
- SWIstream::Result rc;
- if (_pos == _end && (rc = flushBuffer()) != SWIstream::SUCCESS)
- return rc;
- *_pos++ = c;
- return SWIstream::SUCCESS;
- }
- SWIstream::Result SWIbufferedOutputStream::flush()
- {
- if (_buffer == NULL) return SWIstream::ILLEGAL_STATE;
- return flushBuffer();
- }
- bool SWIbufferedOutputStream::isBuffered() const
- {
- return true;
- }
- SWIstream::Result SWIbufferedOutputStream::flushBuffer()
- {
- int len = _pos - _buffer;
- _pos = _buffer;
- if (len == 0)
- return SWIstream::SUCCESS;
- int rc = SWIfilterOutputStream::writeBytes(_buffer, len);
- if (len == rc)
- return SWIstream::SUCCESS;
- if (rc >= 0)
- return SWIstream::WRITE_ERROR;
- return SWIstream::Result(rc);
- }