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Diffstat (limited to 'lib/common/IOStreamGetLine.h')
| -rw-r--r-- | lib/common/IOStreamGetLine.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/lib/common/IOStreamGetLine.h b/lib/common/IOStreamGetLine.h new file mode 100644 index 00000000..525fea01 --- /dev/null +++ b/lib/common/IOStreamGetLine.h @@ -0,0 +1,109 @@ +// distribution boxbackup-0.10 (svn version: 494) +// +// Copyright (c) 2003 - 2006 +// Ben Summers and contributors. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// 3. All use of this software and associated advertising materials must +// display the following acknowledgment: +// This product includes software developed by Ben Summers. +// 4. The names of the Authors may not be used to endorse or promote +// products derived from this software without specific prior written +// permission. +// +// [Where legally impermissible the Authors do not disclaim liability for +// direct physical injury or death caused solely by defects in the software +// unless it is modified by a third party.] +// +// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR +// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +// DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, +// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +// POSSIBILITY OF SUCH DAMAGE. +// +// +// +// -------------------------------------------------------------------------- +// +// File +// Name: IOStreamGetLine.h +// Purpose: Line based file descriptor reading +// Created: 2003/07/24 +// +// -------------------------------------------------------------------------- + +#ifndef IOSTREAMGETLINE__H +#define IOSTREAMGETLINE__H + +#include <string> + +#include "IOStream.h" + +#ifdef NDEBUG + #define IOSTREAMGETLINE_BUFFER_SIZE 1024 +#else + #define IOSTREAMGETLINE_BUFFER_SIZE 4 +#endif + +// Just a very large upper bound for line size to avoid +// people sending lots of data over sockets and causing memory problems. +#define IOSTREAMGETLINE_MAX_LINE_SIZE (1024*256) + +// -------------------------------------------------------------------------- +// +// Class +// Name: IOStreamGetLine +// Purpose: Line based stream reading +// Created: 2003/07/24 +// +// -------------------------------------------------------------------------- +class IOStreamGetLine +{ +public: + IOStreamGetLine(IOStream &Stream); + ~IOStreamGetLine(); +private: + IOStreamGetLine(const IOStreamGetLine &rToCopy); + +public: + bool GetLine(std::string &rOutput, bool Preprocess = false, int Timeout = IOStream::TimeOutInfinite); + bool IsEOF() {return mEOF;} + int GetLineNumber() {return mLineNumber;} + + // Call to detach, setting file pointer correctly to last bit read. + // Only works for lseek-able file descriptors. + void DetachFile(); + + // For doing interesting stuff with the remaining data... + // Be careful with this! + const void *GetBufferedData() const {return mBuffer + mBufferBegin;} + int GetSizeOfBufferedData() const {return mBytesInBuffer - mBufferBegin;} + void IgnoreBufferedData(int BytesToIgnore); + IOStream &GetUnderlyingStream() {return mrStream;} + +private: + char mBuffer[IOSTREAMGETLINE_BUFFER_SIZE]; + IOStream &mrStream; + int mLineNumber; + int mBufferBegin; + int mBytesInBuffer; + bool mPendingEOF; + bool mEOF; + std::string mPendingString; +}; + +#endif // IOSTREAMGETLINE__H + |