My application is working as a client application for a bank server. The application is sending a request and getting a response from the bank. This application is normally working fine, but sometimes
The I/O operation has been aborted because of either a thread exit or an application request
error with error code as 995 comes through.
public void OnDataReceived(IAsyncResult asyn)
{
BLCommonFunctions.WriteLogger(0, "In :- OnDataReceived",
ref swReceivedLogWriter, strLogPath, 0);
try
{
SocketPacket theSockId = (SocketPacket)asyn.AsyncState;
int iRx = theSockId.thisSocket.EndReceive(asyn); //Here error is coming
string strHEX = BLCommonFunctions.ByteArrToHex(theSockId.dataBuffer);
}
}
Once this error starts to come for all transactions after that same error begin to appear, so please help me to sort out this problem. If possible then with some sample code
Regards, Ashish Khandelwal
I had the same issue with RS232 communication. The reason, is that your program executes much faster than the comport (or slow serial communication).
To fix it, I had to check if the IAsyncResult.IsCompleted==true
. If not completed, then IAsyncResult.AsyncWaitHandle.WaitOne()
Like this :
Stream s = this.GetStream();
IAsyncResult ar = s.BeginWrite(data, 0, data.Length, SendAsync, state);
if (!ar.IsCompleted)
ar.AsyncWaitHandle.WaitOne();
Most of the time, ar.IsCompleted
will be true
.
I had this problem. I think that it was caused by the socket getting opened and no data arriving within a short time after the open. I was reading from a serial to ethernet box called a Devicemaster. I changed the Devicemaster port setting from "connect always" to "connect on data" and the problem disappeared. I have great respect for Hans Passant but I do not agree that this is an error code that you can easily solve by scrutinizing code.
In my case, the request was getting timed out. So all you need to do is to increase the time out while creating the HttpClient.
HttpClient client = new HttpClient();
client.Timeout = TimeSpan.FromMinutes(5);
What I do when it happens is Disable the COM port into the Device Manager and Enable it again.
It stop the communications with another program or thread and become free for you.
I hope this works for you. Regards.
Source: Stackoverflow.com