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// SPDX-License-Identifier: LGPL-2.1-or-later
/**
* @file
* Phoebe DOM Implementation.
*
* This is a C++ approximation of the W3C DOM model, which follows
* fairly closely the specifications in the various .idl files, copies of
* which are provided for reference. Most important is this one:
*
* http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/idl-definitions.html
*//*
* Authors:
* see git history
* Bob Jamison
*
* Copyright (C) 2018 Authors
* Released under GNU LGPL v2.1+, read the file 'COPYING' for more information.
*/
/**
* This class provided buffered endpoints for input and output.
*/
#include "bufferstream.h"
namespace Inkscape
{
namespace IO
{
//#########################################################################
//# B U F F E R I N P U T S T R E A M
//#########################################################################
/**
*
*/
BufferInputStream::BufferInputStream(
const std::vector<unsigned char> &sourceBuffer)
: buffer(sourceBuffer)
{
position = 0;
closed = false;
}
/**
*
*/
BufferInputStream::~BufferInputStream()
= default;
/**
* Returns the number of bytes that can be read (or skipped over) from
* this input stream without blocking by the next caller of a method for
* this input stream.
*/
int BufferInputStream::available()
{
if (closed)
return -1;
return buffer.size() - position;
}
/**
* Closes this input stream and releases any system resources
* associated with the stream.
*/
void BufferInputStream::close()
{
closed = true;
}
/**
* Reads the next byte of data from the input stream. -1 if EOF
*/
int BufferInputStream::get()
{
if (closed)
return -1;
if (position >= (int)buffer.size())
return -1;
int ch = (int) buffer[position++];
return ch;
}
//#########################################################################
//# B U F F E R O U T P U T S T R E A M
//#########################################################################
/**
*
*/
BufferOutputStream::BufferOutputStream()
{
closed = false;
}
/**
*
*/
BufferOutputStream::~BufferOutputStream()
= default;
/**
* Closes this output stream and releases any system resources
* associated with this stream.
*/
void BufferOutputStream::close()
{
closed = true;
}
/**
* Flushes this output stream and forces any buffered output
* bytes to be written out.
*/
void BufferOutputStream::flush()
{
//nothing to do
}
/**
* Writes the specified byte to this output stream.
*/
int BufferOutputStream::put(char ch)
{
if (closed)
return -1;
buffer.push_back(ch);
return 1;
}
} //namespace IO
} //namespace Inkscape
//#########################################################################
//# E N D O F F I L E
//#########################################################################
|
