public IAsyncResult BeginGetWithCallback(byte[] key, AsyncCallback acb, object state)
{
BrunetDhtGetOp op = new BrunetDhtGetOp(this._dht.Get);
IAsyncResult ar = op.BeginInvoke(key, acb, state);
return(ar);
}
public void OnDhtGetReturns(IAsyncResult result)
{
AsyncResult ar = (AsyncResult)result;
AsyncFragsOpState agfs = (AsyncFragsOpState)ar.AsyncState;
BrunetDhtGetOp op = (BrunetDhtGetOp)ar.AsyncDelegate;
AsyncGetFragsGlobalState global_state =
(AsyncGetFragsGlobalState)agfs.GlobalState;
AsyncOpState piece_state = agfs.PieceState;
DhtGetResult[] returns = op.EndInvoke(ar);
if (returns != null && returns.Length > 0)
{
// We only need the first one.
DhtGetResult dgr = returns[0];
Logger.WriteLineIf(LogLevel.Verbose, _log_props,
string.Format("Get succeeded for piece: {0}",
Encoding.UTF8.GetString(piece_state.Key)));
lock (global_state.SyncRoot) {
byte[] piece_key = piece_state.Key;
int piece_indx = BrunetDht.GetPieceIndexFromFragmentKey(piece_key);
global_state.Fragments[piece_indx] = dgr;
global_state.OpSuccCount++;
if ((global_state.Concurrency > 1 && global_state.OpSuccCount %
global_state.Concurrency == 0) || global_state.OpSuccCount ==
global_state.ExpectedPositiveReturnNum)
{
// put concurrently and a batch finishes.
global_state.BatchFinishedEvent.Set();
}
if (global_state.OpSuccCount == global_state.ExpectedPositiveReturnNum)
{
Logger.WriteLineIf(LogLevel.Verbose, _log_props,
string.Format("All pieces of {0} successfully got. Firing GetStoppedEvent",
Encoding.UTF8.GetString(global_state.BaseKey)));
global_state.Returns.Enqueue(new GetFragsStoppedEventArgs(global_state.Fragments));
}
}
}
else
{
Logger.WriteLineIf(LogLevel.Verbose, _log_props,
string.Format("Get failed for piece: {0}. Firing GetStoppedEvent",
Encoding.UTF8.GetString(piece_state.Key)));
//No retry at this level currently, stop put operation.
lock (global_state.SyncRoot) {
global_state.Returns.Enqueue(new PutFragsStoppedEventArgs(piece_state));
}
}
}
public IAsyncResult BeginGetWithCallback(byte[] key, AsyncCallback acb, object state)
{
BrunetDhtGetOp op = new BrunetDhtGetOp(this._dht.Get);
IAsyncResult ar = op.BeginInvoke(key, acb, state);
return ar;
}
