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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/io/stream/bufferstream.cpp | |
parent | Initial commit. (diff) | |
download | inkscape-upstream.tar.xz inkscape-upstream.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/io/stream/bufferstream.cpp')
-rw-r--r-- | src/io/stream/bufferstream.cpp | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/io/stream/bufferstream.cpp b/src/io/stream/bufferstream.cpp new file mode 100644 index 0000000..1723ee1 --- /dev/null +++ b/src/io/stream/bufferstream.cpp @@ -0,0 +1,144 @@ +// 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 +//######################################################################### |