/// <summary>
/// 多数据段处理
/// </summary>
/// <param name="baizeSession">会话</param>
/// <param name="sequence">数据</param>
/// <returns></returns>
private bool MultiSegmentHandler(BaizeSession baizeSession, ReadOnlySequence <byte> sequence)
{
bool rtn = false;
int size = this._filterInfo.BasePortocalFilterInfo.Size;
BaizeBufferSegment tmpHead = null, tmpTail = null;
int tmpHeadIndex = 0;
int tmpTailIndex = 0;
if (sequence.First.Length >= size)
{
ReadOnlySequence <byte> readOnly = new ReadOnlySequence <byte>(sequence.First.Slice(0, size));
baizeSession.Data = readOnly;
}
else
{
int length = 0;
foreach (var memory in sequence)
{
if (tmpHead == null)
{
tmpHead = tmpTail = new BaizeBufferSegment();
tmpTail.SetUnownedMemory(memory);
}
else
{
BaizeBufferSegment next = new BaizeBufferSegment();
next.SetUnownedMemory(memory);
tmpTail.SetNext(next);
tmpTail = next;
}
if (length + memory.Length >= size)
{
tmpTailIndex = size - length;
rtn = true;
break;
}
length += memory.Length;
}
if (rtn)
{
ReadOnlySequence <byte> readOnly = new ReadOnlySequence <byte>(tmpHead, tmpHeadIndex, tmpTail, tmpTailIndex);
baizeSession.Data = readOnly;
}
else
{
if (tmpHead != null)
{
tmpHead.ResetMemory();
tmpHead = null;
}
}
}
return(rtn);
}
/// <summary>
/// 获得多段的包的长度
/// </summary>
/// <param name="sequence"></param>
/// <returns></returns>
private int GetMultiSegmentPacketLength(ReadOnlySequence <byte> sequence)
{
int rtn = 0;
int length = 0;
BaizeBufferSegment tmpHead = null, tmpTail = null;
int tmpHeadIndex = 0;
int tmpTailIndex = 0;
bool complete = false;
foreach (var memory in sequence)
{
if (tmpHead == null)
{
tmpHead = tmpTail = new BaizeBufferSegment();
tmpTail.SetUnownedMemory(memory);
}
else
{
BaizeBufferSegment next = new BaizeBufferSegment();
next.SetUnownedMemory(memory);
tmpTail.SetNext(next);
tmpTail = next;
}
if (length + memory.Length >= this._filterInfo.BasePortocalFilterInfo.Size)
{
tmpTailIndex = this._filterInfo.BasePortocalFilterInfo.Size - length;
complete = true;
break;
}
length += memory.Length;
}
if (complete)
{
ReadOnlySequence <byte> readOnly = new ReadOnlySequence <byte>(tmpHead, tmpHeadIndex, tmpTail, tmpTailIndex);
if (readOnly.First.Length <= this._filterInfo.BasePortocalFilterInfo.Size)
{
rtn = GetMultSegmentPacketLength(readOnly);
}
else
{
rtn = GetPacketLength(readOnly);
}
}
else
{
if (tmpHead != null)
{
tmpHead.ResetMemory();
tmpHead = null;
}
}
return(rtn);
}
/// <summary>
/// 多数据段处理
/// </summary>
/// <param name="baizeSession">会话</param>
/// <param name="sequence">数据</param>
/// <returns></returns>
private bool MultiSegmentHandler(BaizeSession baizeSession, ReadOnlySequence <byte> sequence)
{
bool rtn = false;
BaizeBufferSegment tmpHead = null, tmpTail = null;
int tmpHeadIndex = 0;
int tmpTailIndex = 0;
foreach (var memory in sequence)
{
if (tmpHead == null)
{
tmpHead = tmpTail = new BaizeBufferSegment();
tmpTail.SetUnownedMemory(memory);
}
else
{
BaizeBufferSegment next = new BaizeBufferSegment();
next.SetUnownedMemory(memory);
tmpTail.SetNext(next);
tmpTail = next;
}
int terminatorIndex = memory.Span.IndexOf(_terminatorMark.Span);
if (terminatorIndex != -1)
{
tmpTailIndex = terminatorIndex;
rtn = true;
break;
}
}
if (rtn)
{
ReadOnlySequence <byte> readOnly = new ReadOnlySequence <byte>(tmpHead, tmpHeadIndex, tmpTail, tmpTailIndex + _terminatorMark.Length);
baizeSession.Data = readOnly;
}
else
{
if (tmpHead != null)
{
tmpHead.ResetMemory();
tmpHead = null;
}
}
return(rtn);
}
/// <summary>
/// 填充数据
/// </summary>
/// <param name="data">填充数据</param>
public void FillData(ReadOnlySequence <byte> data)
{
_bufferDataCount += data.Length;
foreach (var memory in data)
{
if (_head == null)
{
_head = _tail = new BaizeBufferSegment();
_tail.SetUnownedMemory(memory);
}
else
{
BaizeBufferSegment next = new BaizeBufferSegment();
next.SetUnownedMemory(memory);
_tail.SetNext(next);
_tail = next;
}
}
}
/// <summary>
/// 多数据段处理
/// </summary>
/// <param name="baizeSession">会话</param>
/// <param name="sequence">数据</param>
/// <returns></returns>
private bool MultiSegmentHandler(BaizeSession baizeSession, ReadOnlySequence <byte> sequence)
{
bool rtn = false;
BaizeBufferSegment tmpHead = null, tmpTail = null;
int tmpHeadIndex = 0;
int tmpTailIndex = 0;
bool foundBeginMark = false;
foreach (var memory in sequence)
{
bool addSegment = false;
if (!foundBeginMark)
{
int beginIndex = memory.Span.IndexOf(_beginMark.Span);
if (beginIndex != -1)
{
foundBeginMark = true;
tmpHeadIndex = beginIndex;
tmpHead = tmpTail = new BaizeBufferSegment();
tmpTail.SetUnownedMemory(memory);
addSegment = true;
}
}
if (foundBeginMark && !addSegment)
{
BaizeBufferSegment next = new BaizeBufferSegment();
next.SetUnownedMemory(memory);
tmpTail.SetNext(next);
tmpTail = next;
}
int endIndex = -1;
if (addSegment)
{
endIndex = memory.Span.Slice(tmpHeadIndex + _beginMark.Length).IndexOf(_endMark.Span);
if (endIndex != -1)
{
endIndex += _beginMark.Length + tmpHeadIndex;
tmpTailIndex = endIndex;
rtn = true;
break;
}
}
else
{
endIndex = memory.Span.IndexOf(_endMark.Span);
if (endIndex != -1)
{
tmpTailIndex = endIndex;
rtn = true;
break;
}
}
}
if (rtn)
{
ReadOnlySequence <byte> readOnly = new ReadOnlySequence <byte>(tmpHead, tmpHeadIndex, tmpTail, tmpTailIndex + _endMark.Length);
baizeSession.Data = readOnly;
}
else
{
if (tmpHead != null)
{
tmpHead.ResetMemory();
tmpHead = null;
}
}
return(rtn);
}
/// <summary>
/// 重置
/// </summary>
public void Reset()
{
_head.ResetMemory();
_head = null;
_bufferDataCount = 0;
}
