public Command(MethodBase method, ContentHeaderBase header, IMemoryOwner <byte> body, int bodySize)
{
Method = method;
Header = header;
_body = body;
Body = _body?.Memory.Slice(0, bodySize) ?? s_emptyByteArray;
}
public Command(MethodBase method, ContentHeaderBase header, byte[] body)
{
Method = method;
Header = header;
m_body0 = body;
m_bodyN = null;
}
public MethodBase ModelRpc(MethodBase method, ContentHeaderBase header, byte[] body)
{
SimpleBlockingRpcContinuation k = new SimpleBlockingRpcContinuation();
TransmitAndEnqueue(new Command(method, header, body), k);
return(k.GetReply().Method);
}
public IncomingCommand(MethodBase method, ContentHeaderBase header, ReadOnlyMemory <byte> body, byte[] rentedArray)
{
Method = method;
Header = header;
Body = body;
_rentedArray = rentedArray;
}
public HeaderOutboundFrame(int channel, ContentHeaderBase header, int bodyLength) : base(FrameType.FrameHeader, channel)
{
NetworkBinaryWriter writer = base.GetWriter();
writer.Write((ushort)header.ProtocolClassId);
header.WriteTo(writer, (ulong)bodyLength);
}
public Command(MethodBase method, ContentHeaderBase header, ReadOnlyMemory <byte> body, bool returnBufferOnDispose)
{
Method = method;
Header = header;
Body = body;
_returnBufferOnDispose = returnBufferOnDispose;
}
public Command(MethodBase method, ContentHeaderBase header, byte[] body)
{
Method = method;
Header = header;
m_body0 = body;
m_bodyN = null;
}
public void ModelSend(MethodBase method, ContentHeaderBase header, byte[] body)
{
if (method.HasContent)
{
m_flowControlBlock.WaitOne();
}
m_session.Transmit(new Command(method, header, body));
}
private void Reset()
{
m_state = AssemblyState.ExpectingMethod;
m_method = null;
m_header = null;
m_body = null;
_offset = 0;
m_remainingBodyBytes = 0;
}
private void Reset()
{
_method = null;
_header = null;
_bodyBytes = null;
_body = ReadOnlyMemory <byte> .Empty;
_remainingBodyBytes = 0;
_offset = 0;
_state = AssemblyState.ExpectingMethod;
}
private void Reset()
{
_methodBytes = ReadOnlyMemory <byte> .Empty;
_rentedMethodArray = null;
_commandId = default;
_header = null;
_bodyBytes = null;
_body = ReadOnlyMemory <byte> .Empty;
_remainingBodyBytes = 0;
_offset = 0;
_state = AssemblyState.ExpectingMethod;
}
public Command HandleFrame(InboundFrame f)
{
switch (m_state)
{
case AssemblyState.ExpectingMethod:
if (!f.IsMethod())
{
throw new UnexpectedFrameException(f);
}
m_method = m_protocol.DecodeMethodFrom(f.Payload);
m_state = m_method.HasContent ? AssemblyState.ExpectingContentHeader : AssemblyState.Complete;
return(CompletedCommand());
case AssemblyState.ExpectingContentHeader:
if (!f.IsHeader())
{
throw new UnexpectedFrameException(f);
}
m_header = m_protocol.DecodeContentHeaderFrom(NetworkOrderDeserializer.ReadUInt16(f.Payload));
ulong totalBodyBytes = m_header.ReadFrom(f.Payload.Slice(2));
if (totalBodyBytes > MaxArrayOfBytesSize)
{
throw new UnexpectedFrameException(f);
}
m_remainingBodyBytes = (int)totalBodyBytes;
m_body = MemoryPool <byte> .Shared.Rent(m_remainingBodyBytes);
UpdateContentBodyState();
return(CompletedCommand());
case AssemblyState.ExpectingContentBody:
if (!f.IsBody())
{
throw new UnexpectedFrameException(f);
}
if (f.Payload.Length > m_remainingBodyBytes)
{
throw new MalformedFrameException($"Overlong content body received - {m_remainingBodyBytes} bytes remaining, {f.Payload.Length} bytes received");
}
f.Payload.CopyTo(m_body.Memory.Slice(_offset));
m_remainingBodyBytes -= f.Payload.Length;
_offset += f.Payload.Length;
UpdateContentBodyState();
return(CompletedCommand());
case AssemblyState.Complete:
default:
return(null);
}
}
public Command(MethodBase method, ContentHeaderBase header, byte[] body)
{
Method = method;
Header = header;
if (body != null)
{
m_body = body;
}
else
{
m_body = m_emptyByteArray;
}
}
public Command(MethodBase method, ContentHeaderBase header, byte[] body)
{
Method = method;
Header = header;
if (body != null)
{
m_body = new MemoryStream(body);
}
else
{
m_body = new MemoryStream();
}
}
public static int WriteTo(Span <byte> span, ushort channel, ContentHeaderBase header, int bodyLength)
{
const int StartClassId = StartPayload;
const int StartWeight = StartPayload + 2;
const int StartBodyLength = StartPayload + 4;
const int StartHeaderArguments = StartPayload + 12;
NetworkOrderSerializer.WriteUInt16(span.Slice(StartClassId), header.ProtocolClassId);
NetworkOrderSerializer.WriteUInt16(span.Slice(StartWeight), 0); // Weight - not used
NetworkOrderSerializer.WriteUInt64(span.Slice(StartBodyLength), (ulong)bodyLength);
int offset = header.WritePropertiesTo(span.Slice(StartHeaderArguments));
return(WriteBaseFrame(span, FrameType.FrameHeader, channel, StartHeaderArguments - StartPayload + offset));
}
public MethodBase ModelRpc(MethodBase method, ContentHeaderBase header, byte[] body)
{
SimpleBlockingRpcContinuation k = new SimpleBlockingRpcContinuation();
TransmitAndEnqueue(new Command(method, header, body), k);
return k.GetReply().Method;
}
public void ModelSend(MethodBase method, ContentHeaderBase header, byte[] body)
{
if (method.HasContent)
{
lock (m_flowSendLock)
{
m_flowControlBlock.WaitOne();
m_session.Transmit(new Command(method, header, body));
}
}
else
{
m_session.Transmit(new Command(method, header, body));
}
}
public Command(MethodBase method, ContentHeaderBase header, byte[] body)
{
Method = method;
Header = header;
Body = body ?? s_emptyByteArray;
}
internal HeaderOutboundFrame(int channel, ContentHeaderBase header, int bodyLength) : base(FrameType.FrameHeader, channel)
{
_header = header;
_bodyLength = bodyLength;
}
public Command HandleFrame(InboundFrame f)
{
switch (m_state)
{
case AssemblyState.ExpectingMethod:
{
if (!f.IsMethod())
{
throw new UnexpectedFrameException(f);
}
m_method = m_protocol.DecodeMethodFrom(f.GetReader());
m_state = m_method.HasContent
? AssemblyState.ExpectingContentHeader
: AssemblyState.Complete;
return(CompletedCommand());
}
case AssemblyState.ExpectingContentHeader:
{
if (!f.IsHeader())
{
throw new UnexpectedFrameException(f);
}
NetworkBinaryReader reader = f.GetReader();
m_header = m_protocol.DecodeContentHeaderFrom(reader);
var totalBodyBytes = m_header.ReadFrom(reader);
if (totalBodyBytes > MaxArrayOfBytesSize)
{
throw new UnexpectedFrameException(f);
}
m_remainingBodyBytes = (int)totalBodyBytes;
m_body = new byte[m_remainingBodyBytes];
m_bodyStream = new MemoryStream(m_body, true);
UpdateContentBodyState();
return(CompletedCommand());
}
case AssemblyState.ExpectingContentBody:
{
if (!f.IsBody())
{
throw new UnexpectedFrameException(f);
}
if (f.Payload.Length > m_remainingBodyBytes)
{
throw new MalformedFrameException
(string.Format("Overlong content body received - {0} bytes remaining, {1} bytes received",
m_remainingBodyBytes,
f.Payload.Length));
}
m_bodyStream.Write(f.Payload, 0, f.Payload.Length);
m_remainingBodyBytes -= f.Payload.Length;
UpdateContentBodyState();
return(CompletedCommand());
}
case AssemblyState.Complete:
default:
#if NETFX_CORE
Debug.WriteLine("Received frame in invalid state {0}; {1}", m_state, f);
#else
//Trace.Fail(string.Format("Received frame in invalid state {0}; {1}", m_state, f));
#endif
return(null);
}
}
internal Command(MethodBase method, ContentHeaderBase header, ReadOnlyMemory <byte> body)
{
Method = method;
Header = header;
Body = body;
}
public HeaderOutboundFrame(int channel, ContentHeaderBase header, int bodyLength) : base(FrameType.FrameHeader, channel)
{
this.header = header;
this.bodyLength = bodyLength;
}
public OutgoingContentCommand(MethodBase method, ContentHeaderBase header, ReadOnlyMemory <byte> body)
{
_method = method;
_header = header;
_body = body;
}
