Task <AFHTTPRequestOperation> enqueueOperation(AFHTTPClient handler, AFHTTPRequestOperation operation, CancellationToken cancelToken, Action onCompleted, Action <Exception> onError)
{
var tcs = new TaskCompletionSource <AFHTTPRequestOperation>();
if (cancelToken.IsCancellationRequested)
{
tcs.SetCanceled();
return(tcs.Task);
}
bool completed = false;
operation.SetDownloadProgressBlock((a, b, c) => {
// NB: We're totally cheating here, we just happen to know
// that we're guaranteed to have response headers after the
// first time we get progress.
if (completed)
{
return;
}
completed = true;
tcs.SetResult(operation);
});
operation.SetCompletionBlockWithSuccess(
(op, _) => onCompleted(),
(op, err) => {
var ex = new ApplicationException();
ex.Data.Add("op", op);
ex.Data.Add("err", err);
onCompleted();
if (completed)
{
onError(ex);
return;
}
// NB: Secret Handshake is Secret
completed = true;
tcs.SetException(ex);
});
handler.EnqueueHTTPRequestOperation(operation);
cancelToken.Register(() => {
if (completed)
{
return;
}
completed = true;
operation.Cancel();
tcs.SetCanceled();
});
return(tcs.Task);
}
Task<AFHTTPRequestOperation> enqueueOperation(AFHTTPClient handler, AFHTTPRequestOperation operation, CancellationToken cancelToken)
{
var tcs = new TaskCompletionSource<AFHTTPRequestOperation>();
if (cancelToken.IsCancellationRequested) {
tcs.SetCanceled();
return tcs.Task;
}
bool completed = false;
operation.SetCompletionBlockWithSuccess(
(op, _) => {
if (completed) return;
completed = true;
tcs.SetResult(op);
},
(op, err) => {
if (completed) return;
// NB: Secret Handshake is Secret
completed = true;
var ex = new ApplicationException();
ex.Data.Add("op", op);
ex.Data.Add("err", err);
tcs.SetException(ex);
});
handler.EnqueueHTTPRequestOperation(operation);
cancelToken.Register(() => {
if (completed) return;
completed = true;
operation.Cancel();
tcs.SetCanceled();
});
return tcs.Task;
}
Task<AFHTTPRequestOperation> enqueueOperation(AFHTTPClient handler, AFHTTPRequestOperation operation, CancellationToken cancelToken, Action onCompleted, Action<Exception> onError)
{
var tcs = new TaskCompletionSource<AFHTTPRequestOperation>();
if (cancelToken.IsCancellationRequested) {
tcs.SetCanceled();
return tcs.Task;
}
bool completed = false;
operation.SetDownloadProgressBlock((a, b, c) => {
// NB: We're totally cheating here, we just happen to know
// that we're guaranteed to have response headers after the
// first time we get progress.
if (completed) return;
completed = true;
tcs.SetResult(operation);
});
operation.SetCompletionBlockWithSuccess(
(op, _) => {
if (!completed) {
completed = true;
tcs.SetResult(operation);
}
onCompleted();
},
(op, err) => {
var ex = new ApplicationException();
ex.Data.Add("op", op);
ex.Data.Add("err", err);
onCompleted();
if (completed) {
onError(ex);
return;
}
// NB: Secret Handshake is Secret
completed = true;
tcs.SetException(ex);
});
handler.EnqueueHTTPRequestOperation(operation);
cancelToken.Register(() => {
if (completed) return;
completed = true;
operation.Cancel();
tcs.SetCanceled();
});
return tcs.Task;
}