public int ForEachByte(IByteProcessor processor)
{
int ret = _buffer.ForEachByte(processor);
if ((uint)ret > SharedConstants.TooBigOrNegative)
{
ThrowReplay();
}
return(ret);
}
long ParsePositiveNumber(IByteBuffer byteBuffer)
{
this.toPositiveLongProcessor.Reset();
byteBuffer.ForEachByte(this.toPositiveLongProcessor);
return(this.toPositiveLongProcessor.Content);
}
private int FindEndOfLine(IByteBuffer byteBuffer)
{
var chars = terminator.ToCharArray();
var byteChar = (byte)chars[0];
var index = byteBuffer.ForEachByte(new ByteProcessor(b => b != byteChar));
if (index != -1)
{
for (int i = 1; i < chars.Length; i++)
{
var chatByte = (byte)chars[i];
if (index > byteBuffer.ReadableBytes)
{
index = -1;
break;
}
var byteItem = byteBuffer.GetByte(index + 1);
if (chatByte == byteItem)
{
index += 1;
}
else
{
index = -1;
break;
}
}
}
if (index != -1)
{
index -= chars.Length - 1;
}
return(index);
}
/// <summary>
/// Iterates over the readable bytes of this buffer with the specified <c>processor</c> in ascending order.
/// </summary>
/// <returns>
/// <c>-1</c> if the processor iterated to or beyond the end of the readable bytes.
/// The last-visited index If the <see cref="IByteProcessor.Process" /> returned <c>false</c>.
/// </returns>
public static int ForEachByte(this IByteBuffer buf, IByteProcessor processor)
{
if (buf is IByteBuffer2 buffer2)
{
return(buffer2.ForEachByte(processor));
}
return(buf.ForEachByte(buf.ReaderIndex, buf.ReadableBytes, processor));
}
static int FirstIndexOf(IByteBuffer buffer, int fromIndex, int toIndex, byte value)
{
fromIndex = Math.Max(fromIndex, 0);
if (fromIndex >= toIndex || buffer.Capacity == 0)
{
return(-1);
}
return(buffer.ForEachByte(fromIndex, toIndex - fromIndex, new ByteProcessor.IndexOfProcessor(value)));
}
int FindEndOfLine(IByteBuffer buffer)
{
int i = buffer.ForEachByte(ByteProcessor.FIND_LF);
if (i > 0 && buffer.GetByte(i - 1) == '\r')
{
i--;
}
return(i);
}
public virtual AppendableCharSequence Parse(IByteBuffer buffer)
{
int oldSize = _size;
_seq.Reset();
int i = buffer.ForEachByte(this);
if (i == -1)
{
_size = oldSize;
return(null);
}
_ = buffer.SetReaderIndex(i + 1);
return(_seq);
}
static IByteBuffer ReadLine(IByteBuffer input)
{
if (!input.IsReadable(RedisConstants.EndOfLineLength))
{
return(null);
}
int lfIndex = input.ForEachByte(ByteProcessor.FindLF);
if (lfIndex < 0)
{
return(null);
}
IByteBuffer data = input.ReadSlice(lfIndex - input.ReaderIndex - 1); // `-1` is for CR
ReadEndOfLine(input); // validate CR LF
return(data);
}
static IByteBuffer ReadLine(IByteBuffer byteBuffer)
{
Contract.Requires(byteBuffer != null);
if (!byteBuffer.IsReadable(RedisConstants.EndOfLineLength))
{
return(null);
}
int lfIndex = byteBuffer.ForEachByte(ByteProcessor.FIND_LF);
if (lfIndex < 0)
{
return(null);
}
IByteBuffer buffer = byteBuffer.ReadSlice(lfIndex - byteBuffer.ReaderIndex - 1);
ReadEndOfLine(byteBuffer);
return(buffer);
}
/// <summary>
/// Decompresses the given Huffman coded string literal.
/// </summary>
/// <param name="buf">the string literal to be decoded</param>
/// <param name="length"></param>
/// <returns>the output stream for the compressed data</returns>
/// <exception cref="Http2Exception">EOS Decoded</exception>
public AsciiString Decode(IByteBuffer buf, int length)
{
if (0u >= (uint)length)
{
return(AsciiString.Empty);
}
_dest = new byte[length * 8 / 5];
try
{
int readerIndex = buf.ReaderIndex;
// Using ByteProcessor to reduce bounds-checking and reference-count checking during byte-by-byte
// processing of the ByteBuf.
int endIndex = buf.ForEachByte(readerIndex, length, this);
if ((uint)endIndex > SharedConstants.TooBigOrNegative) // == -1
{
// We did consume the requested length
_ = buf.SetReaderIndex(readerIndex + length);
if ((_state & HUFFMAN_COMPLETE_SHIFT) != HUFFMAN_COMPLETE_SHIFT)
{
ThrowBadEncoding();
}
return(new AsciiString(_dest, 0, _k, false));
}
// The process(...) method returned before the requested length was requested. This means there
// was a bad encoding detected.
_ = buf.SetReaderIndex(endIndex);
throw s_badEncoding;
}
finally
{
_dest = null;
_k = 0;
_state = 0;
}
}
public virtual int ForEachByte(int index, int length, IByteProcessor processor) => Buf.ForEachByte(index, length, processor);
public void Check(IByteBuffer buffer)
{
_checking = true;
_ = buffer.ForEachByte(this);
}
private static int FindStarterIndex(IByteBuffer input)
{
//等同于for循环去查找input中starter的下标，没有就返回-1
return(input.ForEachByte(new IndexOfProcessor(GkDefault.Starter)));
}
static bool IsAscii(IByteBuffer buf, int index, int length) => buf.ForEachByte(index, length, AsciiByteProcessor) == -1;
static int FirstIndexOf(IByteBuffer buffer, int fromIndex, int toIndex, byte value)
{
fromIndex = Math.Max(fromIndex, 0);
if (fromIndex >= toIndex || buffer.Capacity == 0)
{
return -1;
}
return buffer.ForEachByte(fromIndex, toIndex - fromIndex, new ByteProcessor.IndexOfProcessor(value));
}
int FindEndOfLine(IByteBuffer buffer)
{
int i = buffer.ForEachByte(ByteProcessor.FIND_LF);
if (i > 0 && buffer.GetByte(i - 1) == '\r')
{
i--;
}
return i;
}