/// <summary>
/// Creates a request queue for this socket operation
/// </summary>
private void CreateRequestQueue()
{
// Allocate completion from completion queue
if (!RioNative.AllocateRIOCompletion((uint)InitialCqRoom))
{
var socketException = new SocketException();
logger.LogError(
"AllocateRIOCompletion() failed to allocate completions to this socket. Returns error {0}",
socketException.ErrorCode);
throw socketException;
}
// Create the RQ for this socket.
connectionId = GenerateUniqueKey();
while (!RioNative.ConnectionTable.TryAdd(connectionId, this))
{
connectionId = GenerateUniqueKey();
}
rioRqHandle = RioNative.CreateRIORequestQueue(SockHandle, rqReservedSize >> 1, rqReservedSize >> 1, connectionId);
if (rioRqHandle != IntPtr.Zero)
{
return;
}
// Error Handling
var sockException = new SocketException();
RioNative.ReleaseRIOCompletion((uint)InitialCqRoom);
RioSocketWrapper sock;
RioNative.ConnectionTable.TryRemove(connectionId, out sock);
logger.LogError("CreateRIORequestQueue() returns error {0}", sockException.ErrorCode);
throw sockException;
}
private int AllocateRequest()
{
var newRqUsed = rqUsed + 1;
if (newRqUsed > rqReservedSize)
{
var newRqReservedSize = rqReservedSize + rioRqGrowthFactor;
if (!RioNative.AllocateRIOCompletion((uint)rioRqGrowthFactor))
{
var errorCode = Marshal.GetLastWin32Error();
logger.LogError(
"Failed to allocate completions to this socket. AllocateRIOCompletion() returns error {0}",
errorCode);
return(errorCode);
}
// Resize the RQ.
if (!RioNative.ResizeRIORequestQueue(rioRqHandle, (uint)newRqReservedSize >> 1, (uint)newRqReservedSize >> 1))
{
var errorCode = Marshal.GetLastWin32Error();
logger.LogError("Failed to resize the request queue. ResizeRIORequestQueue() returns error {0}",
errorCode);
RioNative.ReleaseRIOCompletion((uint)rioRqGrowthFactor);
return(errorCode);
}
// since it succeeded, update reserved with the new size
rqReservedSize = (uint)newRqReservedSize;
}
// everything succeeded - update rqUsed with the new slots being used for this next IO
rqUsed = newRqUsed;
return(0);
}
