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/**
* StreamBuf.cpp
*
* Implementation file for the StreamBuf class
*
* @see http://www.mr-edd.co.uk/blog/beginners_guide_streambuf
*
* @author Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
* @copyright 2014 Copernica BV
*/
#include "includes.h"
/**
* Set up namespace
*/
namespace Php {
/**
* Constructor
* @param error
*/
StreamBuf::StreamBuf(int error) : _error(error)
{
// we reserve one byte, so that when overflow is called, we still have one
// byte extra in the buffer to put the overflowed byte int
setp(_buffer, _buffer+1024-1);
}
/**
* Method that is called when the internal buffer overflows
* @param c
* @return int
*/
int StreamBuf::overflow(int c)
{
// for error buffers, overflow is simply discarded
if (_error) return c;
// end-of-file has not output, we call EOF directly, and by using the
// comma operator we ensure that EOF is returned
if (c == EOF) return sync(), EOF;
// because we lied the underlying buffer about the size of the buffer
// by one byte, there is no real overflow, and we can still add the byte
// to the end of the buffer
*pptr() = c;
// increment buffer size
pbump(1);
// and now we're going to syn the buffer
return sync() == -1 ? EOF : c;
}
/**
* End namespace
*/
}
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