void ReturnOtherThanLastBuffer()
{
var bufferList = m_ReceiveCache.GetAllCachedItems();
var count = bufferList.Count;
var lastBufferItem = bufferList[count - 1].Key.Array;
for (var i = count - 2; i >= 0; i--)
{
if (bufferList[i].Key.Array != lastBufferItem)
{
m_BufferRecycler.Return(bufferList, 0, i + 1);
break;
}
}
m_ReceiveCache.Clear();
}
/// <summary>
/// Processes the input segment.
/// </summary>
/// <param name="segment">The input segment.</param>
/// <param name="state">The buffer state.</param>
/// <returns>
/// the processing result
/// </returns>
public virtual ProcessResult Process(ArraySegment <byte> segment, IBufferState state)
{
m_ReceiveCache.Add(segment, state);
var rest = 0;
while (true)
{
var packageInfo = m_ReceiveFilter.Filter(m_ReceiveCache, out rest);
if (m_ReceiveFilter.State == FilterState.Error)
{
m_BufferRecycler.Return(m_ReceiveCache.GetAllCachedItems(), 0, m_ReceiveCache.Count);
return(ProcessResult.Create(ProcessState.Error));
}
if (m_MaxPackageLength > 0)
{
var length = m_ReceiveCache.Total;
if (length > m_MaxPackageLength)
{
m_BufferRecycler.Return(m_ReceiveCache.GetAllCachedItems(), 0, m_ReceiveCache.Count);
return(ProcessResult.Create(ProcessState.Error, string.Format("Max package length: {0}, current processed length: {1}", m_MaxPackageLength, length)));
}
}
//Receive continue
if (packageInfo == null)
{
if (rest > 0)
{
PushResetData(segment, rest, state);
continue;
}
return(ProcessResult.Create(ProcessState.Cached));
}
m_ReceiveFilter.Reset();
var nextReceiveFilter = m_ReceiveFilter.NextReceiveFilter;
if (nextReceiveFilter != null)
{
m_ReceiveFilter = nextReceiveFilter;
}
m_PackageHandler.Handle(packageInfo);
if (packageInfo is IBufferedPackageInfo && // is a buffered package
(packageInfo as IBufferedPackageInfo).Data is BufferList) // and it uses receive buffer directly
{
// so we need to create a new receive buffer container to use
m_ReceiveCache = new BufferList();
if (rest <= 0)
{
return(ProcessResult.Create(ProcessState.Cached));
}
}
else
{
ReturnOtherThanLastBuffer();
if (rest <= 0)
{
return(ProcessResult.Create(ProcessState.Completed));
}
}
PushResetData(segment, rest, state);
}
}