void HandleFileBytesReceived(object sender, List <byte> fileBytes)
{
ReceivedFileBytes?.Invoke(sender, fileBytes);
}
async Task <Result <byte[]> > ReceiveRequestBytesAsync(int totalBytes)
{
EventOccurred?.Invoke(this,
new ServerEvent {
EventType = EventType.ReceiveRequestBytesStarted
});
int currentRequestBytesReceived;
var socketReadCount = 0;
var bytesReceived = 0;
var bytesRemaining = totalBytes;
var requestBytes = new List <byte>();
var unreadByteCount = 0;
if (_unreadBytes.Count > 0)
{
currentRequestBytesReceived = Math.Min(totalBytes, _unreadBytes.Count);
var unreadRequestBytes = new byte[currentRequestBytesReceived];
_unreadBytes.CopyTo(0, unreadRequestBytes, 0, currentRequestBytesReceived);
requestBytes.AddRange(unreadRequestBytes.ToList());
bytesReceived += currentRequestBytesReceived;
bytesRemaining -= currentRequestBytesReceived;
EventOccurred?.Invoke(this, new ServerEvent
{
EventType = EventType.CopySavedBytesToRequestData,
UnreadBytesCount = _unreadBytes.Count,
RequestLengthInBytes = totalBytes,
RequestBytesRemaining = bytesRemaining
});
if (_unreadBytes.Count > totalBytes)
{
var fileByteCount = _unreadBytes.Count - totalBytes;
var fileBytes = new byte[fileByteCount];
_unreadBytes.CopyTo(totalBytes, fileBytes, 0, fileByteCount);
_unreadBytes = fileBytes.ToList();
}
else
{
_unreadBytes = new List <byte>();
}
}
currentRequestBytesReceived = 0;
while (bytesRemaining > 0)
{
var readFromSocket =
await _socket.ReceiveWithTimeoutAsync(
_buffer,
0,
_bufferSize,
SocketFlags.None,
_timeoutMs)
.ConfigureAwait(false);
if (readFromSocket.Failure)
{
return(Result.Fail <byte[]>(readFromSocket.Error));
}
var lastBytesReceivedCount = readFromSocket.Value;
currentRequestBytesReceived = Math.Min(bytesRemaining, lastBytesReceivedCount);
var requestBytesFromSocket = new byte[currentRequestBytesReceived];
_buffer.ToList().CopyTo(0, requestBytesFromSocket, 0, currentRequestBytesReceived);
requestBytes.AddRange(requestBytesFromSocket.ToList());
socketReadCount++;
unreadByteCount = lastBytesReceivedCount - currentRequestBytesReceived;
bytesReceived += currentRequestBytesReceived;
bytesRemaining -= currentRequestBytesReceived;
SocketEventOccurred?.Invoke(this, new ServerEvent
{
EventType = EventType.ReceivedRequestBytesFromSocket,
SocketReadCount = socketReadCount,
BytesReceivedCount = lastBytesReceivedCount,
CurrentRequestBytesReceived = currentRequestBytesReceived,
TotalRequestBytesReceived = bytesReceived,
RequestLengthInBytes = totalBytes,
RequestBytesRemaining = bytesRemaining,
UnreadBytesCount = unreadByteCount
});
}
EventOccurred?.Invoke(this, new ServerEvent
{
EventType = EventType.ReceiveRequestBytesComplete,
RequestBytes = requestBytes.ToArray()
});
if (unreadByteCount == 0)
{
return(Result.Ok(requestBytes.ToArray()));
}
var unreadBytes = new byte[unreadByteCount];
_buffer.ToList().CopyTo(currentRequestBytesReceived, unreadBytes, 0, unreadByteCount);
_unreadBytes = unreadBytes.ToList();
EventOccurred?.Invoke(this, new ServerEvent
{
EventType = EventType.SaveUnreadBytesAfterAllRequestBytesReceived,
ExpectedByteCount = currentRequestBytesReceived,
UnreadBytesCount = unreadByteCount
});
ReceivedFileBytes?.Invoke(this, _unreadBytes);
return(Result.Ok(requestBytes.ToArray()));
}
