public static long write(object nd, FileDescriptor fd, ByteBuffer[] bufs, int offset, int length)
{
#if FIRST_PASS
return(0);
#else
ByteBuffer[] altBufs = null;
List <ArraySegment <byte> > list = new List <ArraySegment <byte> >(length);
for (int i = 0; i < length; i++)
{
ByteBuffer bb = bufs[i + offset];
if (!bb.hasArray())
{
if (altBufs == null)
{
altBufs = new ByteBuffer[bufs.Length];
}
ByteBuffer abb = ByteBuffer.allocate(bb.remaining());
int pos = bb.position();
abb.put(bb);
bb.position(pos);
abb.flip();
bb = altBufs[i + offset] = abb;
}
list.Add(new ArraySegment <byte>(bb.array(), bb.arrayOffset() + bb.position(), bb.remaining()));
}
int count;
try
{
count = fd.getSocket().Send(list);
}
catch (System.Net.Sockets.SocketException x)
{
if (x.ErrorCode == global::java.net.SocketUtil.WSAEWOULDBLOCK)
{
count = 0;
}
else
{
throw global::java.net.SocketUtil.convertSocketExceptionToIOException(x);
}
}
catch (ObjectDisposedException)
{
throw new global::java.net.SocketException("Socket is closed");
}
int total = count;
for (int i = 0; total > 0 && i < length; i++)
{
ByteBuffer bb = bufs[i + offset];
int consumed = Math.Min(total, bb.remaining());
bb.position(bb.position() + consumed);
total -= consumed;
}
return(count);
#endif
}
public static short getShortNumeric(java.nio.ByteBuffer buffer, int len)
{
String s = "";
if (null != buffer && buffer.remaining() >= len)
{
byte[] dest = new byte[len];
buffer.get(dest, 0, len);
s = new String(dest);
}
return((short)(0xFFFF & Integer.parseInt(s)));
}
public static String getString(java.nio.ByteBuffer buffer, int len)
{
String s = "";
if (null != buffer && buffer.remaining() >= len)
{
byte[] dest = new byte[len];
buffer.get(dest, 0, len);
s = new String(dest).trim();
}
return(s);
}
/// <exception cref="System.IO.IOException"/>
public int Write(java.nio.ByteBuffer src)
{
int available = this.buf.remaining();
int size = src.remaining();
if (available < size)
{
throw new System.IO.IOException("backing buffer was not large enough " + this.buf.array().Length.ToString() + ", " + available.ToString() + ", " + size.ToString());
}
this.buf.put(src);
return(size);
}
/// <exception cref="System.IO.IOException"/>
public int Read(java.nio.ByteBuffer dst)
{
int size = System.Math.Min(dst.remaining(), this.buf.remaining());
java.nio.ByteBuffer slice = this.buf.slice();
slice.limit(size);
dst.buffer = slice.buffer;
dst.offset = slice.offset;
dst.limit(size);
dst.position(size);
this.buf.position(this.buf.position() + size);
return(size);
}
/// <exception cref="System.IO.IOException"/>
public int Read(java.nio.ByteBuffer dst)
{
int numBytes = dst.remaining();
if (numBytes < this.buf.remaining())
{
//# Serve from the current buffer.
java.nio.ByteBuffer slice = this.buf.slice();
slice.limit(numBytes);
dst.put(slice);
this.buf.position(this.buf.position() + numBytes);
return(numBytes);
}
else
{
//# Copy current available into destination.
int fromFirstBuffer = this.buf.remaining();
{
java.nio.ByteBuffer slice = this.buf.slice();
slice.limit(fromFirstBuffer);
dst.put(slice);
}
numBytes -= fromFirstBuffer;
if (numBytes <= this.buf.capacity())
{
//# Read the next buffer-full.
this.buf.clear();
int n = readAtLeast(this.inner, this.buf, numBytes);
this.buf.rewind();
java.nio.ByteBuffer slice = this.buf.slice();
slice.limit(numBytes);
dst.put(slice);
this.buf.limit(n);
this.buf.position(numBytes);
return(fromFirstBuffer + numBytes);
}
else
{
//# Forward large read to the underlying stream.
this.buf.clear();
this.buf.limit(0);
return(fromFirstBuffer + readAtLeast(this.inner, dst, numBytes));
}
}
}
/// <exception cref="System.IO.IOException"/>
public int Write(java.nio.ByteBuffer src)
{
int available = this.buf.remaining();
int size = src.remaining();
if (size <= available)
{
this.buf.put(src);
}
else if (size <= this.buf.capacity())
{
//# Too much for this buffer, but not a full buffer's worth,
//# so we'll go ahead and copy.
java.nio.ByteBuffer slice = src.slice();
slice.limit(available);
this.buf.put(slice);
this.buf.rewind();
while (this.buf.hasRemaining())
{
this.inner.Write(this.buf);
}
this.buf.rewind();
src.position(src.position() + available);
this.buf.put(src);
}
else
{
//# Writing so much data that we might as well write
//# directly to avoid a copy.
int pos = this.buf.position();
this.buf.rewind();
java.nio.ByteBuffer slice = this.buf.slice();
slice.limit(pos);
while (slice.hasRemaining())
{
this.inner.Write(slice);
}
while (src.hasRemaining())
{
this.inner.Write(src);
}
}
return(size);
}
/// <summary>This is a facade method for the decoding operation.</summary>
/// <remarks>
/// This is a facade method for the decoding operation.
/// <p>
/// This method decodes the remaining byte sequence of the given byte buffer
/// into a new character buffer. This method performs a complete decoding
/// operation, resets at first, then decodes, and flushes at last.
/// <p>
/// This method should not be invoked while another
/// <code>decode</code>
/// operation
/// is ongoing.
/// </remarks>
/// <param name="in">the input buffer.</param>
/// <returns>
/// a new <code>CharBuffer</code> containing the the characters
/// produced by this decoding operation. The buffer's limit will be
/// the position of the last character in the buffer, and the
/// position will be zero.
/// </returns>
/// <exception cref="System.InvalidOperationException">if another decoding operation is ongoing.
/// </exception>
/// <exception cref="MalformedInputException">
/// if an illegal input byte sequence for this charset was
/// encountered, and the action for malformed error is
/// <see cref="CodingErrorAction.REPORT">CodingErrorAction.REPORT</see>
/// </exception>
/// <exception cref="UnmappableCharacterException">
/// if a legal but unmappable input byte sequence for this
/// charset was encountered, and the action for unmappable
/// character error is
/// <see cref="CodingErrorAction.REPORT">CodingErrorAction.REPORT</see>
/// .
/// Unmappable means the byte sequence at the input buffer's
/// current position cannot be mapped to a Unicode character
/// sequence.
/// </exception>
/// <exception cref="CharacterCodingException">if another exception happened during the decode operation.
/// </exception>
/// <exception cref="java.nio.charset.CharacterCodingException"></exception>
public java.nio.CharBuffer decode(java.nio.ByteBuffer @in)
{
reset();
int length = (int)(@in.remaining() * _averageCharsPerByte);
java.nio.CharBuffer output = java.nio.CharBuffer.allocate(length);
java.nio.charset.CoderResult result = null;
while (true)
{
result = decode(@in, output, false);
checkCoderResult(result);
if (result.isUnderflow())
{
break;
}
else
{
if (result.isOverflow())
{
output = allocateMore(output);
}
}
}
result = decode(@in, output, true);
checkCoderResult(result);
while (true)
{
result = flush(output);
checkCoderResult(result);
if (result.isOverflow())
{
output = allocateMore(output);
}
else
{
break;
}
}
output.flip();
status = FLUSH;
return(output);
}
public virtual java.nio.ByteBuffer put(java.nio.ByteBuffer src)
{
if (src == this)
{
throw new System.ArgumentException("src == this");
}
int srcByteCount = src.remaining();
if (srcByteCount > remaining())
{
throw new java.nio.BufferOverflowException();
}
if (src.isDirect())
{
throw new System.InvalidOperationException();
}
byte[] srcObject = java.nio.NioUtils.unsafeArray(src);
int srcOffset = src.position();
if (!src.isDirect())
{
srcOffset += java.nio.NioUtils.unsafeArrayOffset(src);
}
java.nio.ByteBuffer dst = this;
if (dst.isDirect())
{
throw new System.InvalidOperationException();
}
byte[] dstObject = java.nio.NioUtils.unsafeArray(dst);
int dstOffset = dst.position();
if (!dst.isDirect())
{
dstOffset += java.nio.NioUtils.unsafeArrayOffset(dst);
}
System.Array.Copy(srcObject, srcOffset, dstObject, dstOffset, srcByteCount);
src.position(src.limit());
dst.position(dst.position() + srcByteCount);
return(this);
}
public static String getBitString(java.nio.ByteBuffer buffer, int lenBits)
{
String s = "";
int len = (int)Math.Ceiling(lenBits / (double)Byte.SIZE);
if (null != buffer && buffer.remaining() >= len)
{
byte[] dest = new byte[len];
buffer.get(dest, 0, len);
char[] bits = new char[lenBits];
for (int i = 0; i < lenBits; i++)
{
int mask = 0x1 << (Byte.SIZE - (i % Byte.SIZE) - 1);
// U+0030 : unicode zero
// U+0031 : unicode one
bits[i] = (mask & dest[i / Byte.SIZE]) == 0 ? '\u0030' : '\u0031';
}
s = new String(bits);
}
return(s);
}
/// <exception cref="System.IO.IOException"/>
public int Read(java.nio.ByteBuffer outBuf)
{
if (outBuf.buffer == null)
{
outBuf.buffer = new byte[outBuf.remaining()];
}
int len = outBuf.remaining();
if (len == 0)
{
return(0);
}
if (len % 8 != 0)
{
throw new System.Exception("PackedInputStream reads must be word-aligned");
}
int outPtr = outBuf.position();
int outEnd = outPtr + len;
java.nio.ByteBuffer inBuf = this.inner.GetReadBuffer();
while (true)
{
byte tag = 0;
if (inBuf.remaining() < 10)
{
if (outBuf.remaining() == 0)
{
return(len);
}
if (inBuf.remaining() == 0)
{
inBuf = this.inner.GetReadBuffer();
continue;
}
//# We have at least 1, but not 10, bytes available. We need to read
//# slowly, doing a bounds check on each byte.
tag = inBuf.get();
for (int i = 0; i < 8; ++i)
{
if ((tag & (1 << i)) != 0)
{
if (inBuf.remaining() == 0)
{
inBuf = this.inner.GetReadBuffer();
}
outBuf.put(inBuf.get());
}
else
{
outBuf.put((byte)0);
}
}
if (inBuf.remaining() == 0 && (tag == 0 || tag == 0xff))
{
inBuf = this.inner.GetReadBuffer();
}
}
else
{
tag = inBuf.get();
for (int n = 0; n < 8; ++n)
{
bool isNonzero = (tag & (1 << n)) != 0;
outBuf.put(unchecked ((byte)(inBuf.get() & (isNonzero? -1 : 0))));
inBuf.position(inBuf.position() + (isNonzero? 0 : -1));
}
}
if (tag == 0)
{
if (inBuf.remaining() == 0)
{
throw new System.Exception("Should always have non-empty buffer here.");
}
int runLength = (unchecked ((int)(0xff)) & (int)inBuf.get()) * 8;
if (runLength > outEnd - outPtr)
{
throw new System.Exception("Packed input did not end cleanly on a segment boundary");
}
for (int i = 0; i < runLength; ++i)
{
outBuf.put((byte)0);
}
}
else if (tag == 0xff)
{
int runLength = (unchecked ((int)(0xff)) & (int)inBuf.get()) * 8;
if (inBuf.remaining() >= runLength)
{
//# Fast path.
java.nio.ByteBuffer slice = inBuf.slice();
slice.limit(runLength);
outBuf.put(slice);
inBuf.position(inBuf.position() + runLength);
}
else
{
//# Copy over the first buffer, then do one big read for the rest.
runLength -= inBuf.remaining();
outBuf.put(inBuf);
java.nio.ByteBuffer slice = outBuf.slice();
slice.limit(runLength);
this.inner.Read(slice);
outBuf.position(outBuf.position() + runLength);
if (outBuf.remaining() == 0)
{
return(len);
}
inBuf = this.inner.GetReadBuffer();
continue;
}
}
if (outBuf.remaining() == 0)
{
return(len);
}
}
}
/// <summary>
/// Encodes characters starting at the current position of the given input
/// buffer, and writes the equivalent byte sequence into the given output
/// buffer from its current position.
/// </summary>
/// <remarks>
/// Encodes characters starting at the current position of the given input
/// buffer, and writes the equivalent byte sequence into the given output
/// buffer from its current position.
/// <p>
/// The buffers' position will be changed with the reading and writing
/// operation, but their limits and marks will be kept intact.
/// <p>
/// A <code>CoderResult</code> instance will be returned according to
/// following rules:
/// <ul>
/// <li>A
/// <see cref="CoderResult.malformedForLength(int)">malformed input</see>
/// result
/// indicates that some malformed input error was encountered, and the
/// erroneous characters start at the input buffer's position and their
/// number can be got by result's
/// <see cref="CoderResult.length()">length</see>
/// . This
/// kind of result can be returned only if the malformed action is
/// <see cref="CodingErrorAction.REPORT">CodingErrorAction.REPORT</see>
/// .</li>
/// <li>
/// <see cref="CoderResult.UNDERFLOW">CoderResult.UNDERFLOW</see>
/// indicates that
/// as many characters as possible in the input buffer have been encoded. If
/// there is no further input and no characters left in the input buffer then
/// this task is complete. If this is not the case then the client should
/// call this method again supplying some more input characters.</li>
/// <li>
/// <see cref="CoderResult.OVERFLOW">CoderResult.OVERFLOW</see>
/// indicates that the
/// output buffer has been filled, while there are still some characters
/// remaining in the input buffer. This method should be invoked again with a
/// non-full output buffer.</li>
/// <li>A
/// <see cref="CoderResult.unmappableForLength(int)">unmappable character</see>
/// result indicates that some unmappable character error was encountered,
/// and the erroneous characters start at the input buffer's position and
/// their number can be got by result's
/// <see cref="CoderResult.length()">length</see>
/// .
/// This kind of result can be returned only on
/// <see cref="CodingErrorAction.REPORT">CodingErrorAction.REPORT</see>
/// .</li>
/// </ul>
/// <p>
/// The <code>endOfInput</code> parameter indicates if the invoker can
/// provider further input. This parameter is true if and only if the
/// characters in the current input buffer are all inputs for this encoding
/// operation. Note that it is common and won't cause an error if the invoker
/// sets false and then has no more input available, while it may cause an
/// error if the invoker always sets true in several consecutive invocations.
/// This would make the remaining input to be treated as malformed input.
/// input.
/// <p>
/// This method invokes the
/// <see cref="encodeLoop(java.nio.CharBuffer, java.nio.ByteBuffer)">encodeLoop</see>
/// method to
/// implement the basic encode logic for a specific charset.
/// </remarks>
/// <param name="in">the input buffer.</param>
/// <param name="out">the output buffer.</param>
/// <param name="endOfInput">true if all the input characters have been provided.</param>
/// <returns>a <code>CoderResult</code> instance indicating the result.</returns>
/// <exception cref="System.InvalidOperationException">
/// if the encoding operation has already started or no more
/// input is needed in this encoding process.
/// </exception>
/// <exception cref="CoderMalfunctionError">
/// If the
/// <see cref="encodeLoop(java.nio.CharBuffer, java.nio.ByteBuffer)">encodeLoop</see>
/// method threw an <code>BufferUnderflowException</code> or
/// <code>BufferUnderflowException</code>.
/// </exception>
public java.nio.charset.CoderResult encode(java.nio.CharBuffer @in, java.nio.ByteBuffer
@out, bool endOfInput)
{
// If the previous step is encode(CharBuffer), then no more input is needed
// thus endOfInput should not be false
if (status == READY && finished && !endOfInput)
{
throw new System.InvalidOperationException();
}
if ((status == FLUSH) || (!endOfInput && status == END))
{
throw new System.InvalidOperationException();
}
java.nio.charset.CoderResult result;
while (true)
{
try
{
result = encodeLoop(@in, @out);
}
catch (java.nio.BufferOverflowException e)
{
throw new java.nio.charset.CoderMalfunctionError(e);
}
catch (java.nio.BufferUnderflowException e)
{
throw new java.nio.charset.CoderMalfunctionError(e);
}
if (result == java.nio.charset.CoderResult.UNDERFLOW)
{
status = endOfInput ? END : ONGOING;
if (endOfInput)
{
int remaining = @in.remaining();
if (remaining > 0)
{
result = java.nio.charset.CoderResult.malformedForLength(remaining);
}
else
{
return(result);
}
}
else
{
return(result);
}
}
else
{
if (result == java.nio.charset.CoderResult.OVERFLOW)
{
status = endOfInput ? END : ONGOING;
return(result);
}
}
java.nio.charset.CodingErrorAction action = _malformedInputAction;
if (result.isUnmappable())
{
action = _unmappableCharacterAction;
}
// If the action is IGNORE or REPLACE, we should continue
// encoding.
if (action == java.nio.charset.CodingErrorAction.REPLACE)
{
if (@out.remaining() < replacementBytes.Length)
{
return(java.nio.charset.CoderResult.OVERFLOW);
}
@out.put(replacementBytes);
}
else
{
if (action != java.nio.charset.CodingErrorAction.IGNORE)
{
return(result);
}
}
@in.position(@in.position() + result.length());
}
}
/// <exception cref="System.IO.IOException"/>
public int Write(java.nio.ByteBuffer inBuf)
{
int length = inBuf.remaining();
java.nio.ByteBuffer @out = this.inner.GetWriteBuffer();
java.nio.ByteBuffer slowBuffer = java.nio.ByteBuffer.allocate(20);
int inPtr = inBuf.position();
int inEnd = inPtr + length;
while (inPtr < inEnd)
{
if (@out.remaining() < 10)
{
//# Oops, we're out of space. We need at least 10
//# bytes for the fast path, since we don't
//# bounds-check on every byte.
if (@out == slowBuffer)
{
int oldLimit = @out.limit();
@out.limit(@out.position());
@out.rewind();
this.inner.Write(@out);
@out.limit(oldLimit);
}
@out = slowBuffer;
@out.rewind();
}
int tagPos = @out.position();
@out.position(tagPos + 1);
byte curByte;
curByte = inBuf.get(inPtr);
byte bit0 = (curByte != 0)? unchecked ((byte)1) : unchecked ((byte)0);
@out.put(curByte);
@out.position(@out.position() + bit0 - 1);
inPtr += 1;
curByte = inBuf.get(inPtr);
byte bit1 = (curByte != 0)? unchecked ((byte)1) : unchecked ((byte)0);
@out.put(curByte);
@out.position(@out.position() + bit1 - 1);
inPtr += 1;
curByte = inBuf.get(inPtr);
byte bit2 = (curByte != 0)? unchecked ((byte)1) : unchecked ((byte)0);
@out.put(curByte);
@out.position(@out.position() + bit2 - 1);
inPtr += 1;
curByte = inBuf.get(inPtr);
byte bit3 = (curByte != 0)? unchecked ((byte)1) : unchecked ((byte)0);
@out.put(curByte);
@out.position(@out.position() + bit3 - 1);
inPtr += 1;
curByte = inBuf.get(inPtr);
byte bit4 = (curByte != 0)? unchecked ((byte)1) : unchecked ((byte)0);
@out.put(curByte);
@out.position(@out.position() + bit4 - 1);
inPtr += 1;
curByte = inBuf.get(inPtr);
byte bit5 = (curByte != 0)? unchecked ((byte)1) : unchecked ((byte)0);
@out.put(curByte);
@out.position(@out.position() + bit5 - 1);
inPtr += 1;
curByte = inBuf.get(inPtr);
byte bit6 = (curByte != 0)? unchecked ((byte)1) : unchecked ((byte)0);
@out.put(curByte);
@out.position(@out.position() + bit6 - 1);
inPtr += 1;
curByte = inBuf.get(inPtr);
byte bit7 = (curByte != 0)? unchecked ((byte)1) : unchecked ((byte)0);
@out.put(curByte);
@out.position(@out.position() + bit7 - 1);
inPtr += 1;
byte tag = unchecked ((byte)((bit0 << 0) | (bit1 << 1) | (bit2 << 2) | (bit3 << 3)
| (bit4 << 4) | (bit5 << 5) | (bit6 << 6) | (bit7 << 7)));
@out.put(tagPos, tag);
if (tag == 0)
{
//# An all-zero word is followed by a count of
//# consecutive zero words (not including the first
//# one).
int runStart = inPtr;
int limit = inEnd;
if (limit - inPtr > 255 * 8)
{
limit = inPtr + 255 * 8;
}
while (inPtr < limit && inBuf.getLong(inPtr) == 0)
{
inPtr += 8;
}
@out.put(unchecked ((byte)((inPtr - runStart) / 8)));
}
else if (tag == unchecked ((byte)unchecked ((int)(0xff))))
{
//# An all-nonzero word is followed by a count of
//# consecutive uncompressed words, followed by the
//# uncompressed words themselves.
//# Count the number of consecutive words in the input
//# which have no more than a single zero-byte. We look
//# for at least two zeros because that's the point
//# where our compression scheme becomes a net win.
int runStart = inPtr;
int limit = inEnd;
if (limit - inPtr > 255 * 8)
{
limit = inPtr + 255 * 8;
}
while (inPtr < limit)
{
byte c = 0;
for (int ii = 0; ii < 8; ++ii)
{
c += (inBuf.get(inPtr) == 0 ? (byte)1 : (byte)0);
inPtr += 1;
}
if (c >= 2)
{
//# Un-read the word with multiple zeros, since
//# we'll want to compress that one.
inPtr -= 8;
break;
}
}
int count = inPtr - runStart;
@out.put(unchecked ((byte)(count / 8)));
if (count <= @out.remaining())
{
//# There's enough space to memcpy.
inBuf.position(runStart);
java.nio.ByteBuffer slice = inBuf.slice();
slice.limit(count);
@out.put(slice);
}
else
{
//# Input overruns the output buffer. We'll give it
//# to the output stream in one chunk and let it
//# decide what to do.
if (@out == slowBuffer)
{
int oldLimit = @out.limit();
@out.limit(@out.position());
@out.rewind();
this.inner.Write(@out);
@out.limit(oldLimit);
}
inBuf.position(runStart);
java.nio.ByteBuffer slice = inBuf.slice();
slice.limit(count);
while (slice.hasRemaining())
{
this.inner.Write(slice);
}
@out = this.inner.GetWriteBuffer();
}
}
}
if (@out == slowBuffer)
{
@out.limit(@out.position());
@out.rewind();
this.inner.Write(@out);
}
inBuf.position(inPtr);
return(length);
}
/// <summary>
/// Decodes bytes starting at the current position of the given input buffer,
/// and writes the equivalent character sequence into the given output buffer
/// from its current position.
/// </summary>
/// <remarks>
/// Decodes bytes starting at the current position of the given input buffer,
/// and writes the equivalent character sequence into the given output buffer
/// from its current position.
/// <p>
/// The buffers' position will be changed with the reading and writing
/// operation, but their limits and marks will be kept intact.
/// <p>
/// A <code>CoderResult</code> instance will be returned according to
/// following rules:
/// <ul>
/// <li>
/// <see cref="CoderResult.OVERFLOW">CoderResult.OVERFLOW</see>
/// indicates that
/// even though not all of the input has been processed, the buffer the
/// output is being written to has reached its capacity. In the event of this
/// code being returned this method should be called once more with an
/// <code>out</code> argument that has not already been filled.</li>
/// <li>
/// <see cref="CoderResult.UNDERFLOW">CoderResult.UNDERFLOW</see>
/// indicates that
/// as many bytes as possible in the input buffer have been decoded. If there
/// is no further input and no remaining bytes in the input buffer then this
/// operation may be regarded as complete. Otherwise, this method should be
/// called once more with additional input.</li>
/// <li>A
/// <see cref="CoderResult.malformedForLength(int)">malformed input</see>
/// result
/// indicates that some malformed input error has been encountered, and the
/// erroneous bytes start at the input buffer's position and their number can
/// be got by result's
/// <see cref="CoderResult.length()">length</see>
/// . This kind of
/// result can be returned only if the malformed action is
/// <see cref="CodingErrorAction.REPORT">CodingErrorAction.REPORT</see>
/// . </li>
/// <li>A
/// <see cref="CoderResult.unmappableForLength(int)">unmappable character</see>
/// result indicates that some unmappable character error has been
/// encountered, and the erroneous bytes start at the input buffer's position
/// and their number can be got by result's
/// <see cref="CoderResult.length()">length</see>
/// . This kind of result can be returned
/// only if the unmappable character action is
/// <see cref="CodingErrorAction.REPORT">CodingErrorAction.REPORT</see>
/// . </li>
/// </ul>
/// <p>
/// The <code>endOfInput</code> parameter indicates that the invoker cannot
/// provide further input. This parameter is true if and only if the bytes in
/// current input buffer are all inputs for this decoding operation. Note
/// that it is common and won't cause an error if the invoker sets false and
/// then can't provide more input, while it may cause an error if the invoker
/// always sets true in several consecutive invocations. This would make the
/// remaining input to be treated as malformed input.
/// <p>
/// This method invokes the
/// <see cref="decodeLoop(java.nio.ByteBuffer, java.nio.CharBuffer)">decodeLoop</see>
/// method to
/// implement the basic decode logic for a specific charset.
/// </remarks>
/// <param name="in">the input buffer.</param>
/// <param name="out">the output buffer.</param>
/// <param name="endOfInput">true if all the input characters have been provided.</param>
/// <returns>
/// a <code>CoderResult</code> instance which indicates the reason
/// of termination.
/// </returns>
/// <exception cref="System.InvalidOperationException">
/// if decoding has started or no more input is needed in this
/// decoding progress.
/// </exception>
/// <exception cref="CoderMalfunctionError">
/// if the
/// <see cref="decodeLoop(java.nio.ByteBuffer, java.nio.CharBuffer)">decodeLoop</see>
/// method threw an <code>BufferUnderflowException</code> or
/// <code>BufferOverflowException</code>.
/// </exception>
public java.nio.charset.CoderResult decode(java.nio.ByteBuffer @in, java.nio.CharBuffer
@out, bool endOfInput)
{
if ((status == FLUSH) || (!endOfInput && status == END))
{
throw new System.InvalidOperationException();
}
java.nio.charset.CoderResult result = null;
// begin to decode
while (true)
{
java.nio.charset.CodingErrorAction action = null;
try
{
result = decodeLoop(@in, @out);
}
catch (java.nio.BufferOverflowException ex)
{
// unexpected exception
throw new java.nio.charset.CoderMalfunctionError(ex);
}
catch (java.nio.BufferUnderflowException ex)
{
// unexpected exception
throw new java.nio.charset.CoderMalfunctionError(ex);
}
if (result.isUnderflow())
{
int remaining = @in.remaining();
status = endOfInput ? END : ONGOING;
if (endOfInput && remaining > 0)
{
result = java.nio.charset.CoderResult.malformedForLength(remaining);
}
else
{
return(result);
}
}
if (result.isOverflow())
{
return(result);
}
// set coding error handle action
action = _malformedInputAction;
if (result.isUnmappable())
{
action = _unmappableCharacterAction;
}
// If the action is IGNORE or REPLACE, we should continue decoding.
if (action == java.nio.charset.CodingErrorAction.REPLACE)
{
if (@out.remaining() < replacementChars.Length)
{
return(java.nio.charset.CoderResult.OVERFLOW);
}
@out.put(replacementChars);
}
else
{
if (action != java.nio.charset.CodingErrorAction.IGNORE)
{
return(result);
}
}
@in.position(@in.position() + result.length());
}
}