private void ProcessRequestError(uint requestId, ServiceProtocolResponseCode code, int sourceState)
{
if (Interlocked.CompareExchange(ref requestStates[requestId], RequestStateProcessError, sourceState) != sourceState)
{
return;
}
GetContinuation:
var continuation = requestContinuations[requestId];
if (continuation == null)
{
Thread.SpinWait(1);
goto GetContinuation;
}
Thread.MemoryBarrier();
ServiceProtocolResponse.localThreadCodeForErrorResponses = code;
try
{
continuation();
}
catch (Exception e)
{
logger.Fatal($"Service protocol client {requestId}: Could not process request continuation! Details: {e}");
}
requestContinuations[requestId] = null;
Thread.MemoryBarrier();
Interlocked.Exchange(ref requestStates[requestId], RequestStateInactive);
}
internal static void ReadHeader(byte[] buffer, int offset, out uint id, out byte kind, out ServiceProtocolResponseCode code, out ushort size)
{
id = (uint)(buffer[offset] | (buffer[offset + 1] << 8) | (buffer[offset + 2] << 16) | (buffer[offset + 3] << 24));
kind = buffer[offset + 4];
code = (ServiceProtocolResponseCode)buffer[offset + 5];
size = (ushort)(buffer[offset + 6] | (buffer[offset + 7] << 8));
}
internal static void WriteHeader(byte[] buffer, int offset, uint id, byte kind, ServiceProtocolResponseCode code, ushort size)
{
buffer[offset] = (byte)id;
buffer[offset + 1] = (byte)(id >> 8);
buffer[offset + 2] = (byte)(id >> 16);
buffer[offset + 3] = (byte)(id >> 24);
buffer[offset + 4] = kind;
buffer[offset + 5] = (byte)code;
buffer[offset + 6] = (byte)size;
buffer[offset + 7] = (byte)(size >> 8);
}
