protected override IEnumerator <IAsyncResult> PeekMessagesImpl(IAccountIdentifier identity, string account, string queue, int numMessages, TimeSpan?timeout, RequestContext requestContext, AsyncIteratorContext <IEnumerable <PeekedMessage> > context)
{
this.ValidateNumMessages(numMessages, this.config.MaxMessagesToReturn);
RemainingTime remainingTime = new RemainingTime(timeout);
SASAuthorizationParameters sASAuthorizationParameter = new SASAuthorizationParameters()
{
SupportedSasTypes = SasType.ResourceSas | SasType.AccountSas,
SignedResourceType = SasResourceType.Object,
SignedPermission = SASPermission.Read
};
SASAuthorizationParameters sASAuthorizationParameter1 = sASAuthorizationParameter;
IAsyncResult asyncResult = this.BeginGetQueue(identity, account, queue, PermissionLevel.Read, sASAuthorizationParameter1, remainingTime, requestContext, context.GetResumeCallback(), context.GetResumeState("QueueManager.PeekMessagesImpl"));
yield return(asyncResult);
IQueueContainer operationStatus = this.EndGetQueue(asyncResult);
if (requestContext != null)
{
operationStatus.OperationStatus = requestContext.OperationStatus;
}
operationStatus.Timeout = remainingTime;
asyncResult = operationStatus.BeginPeekMessage(numMessages, context.GetResumeCallback(), context.GetResumeState("QueueManager.PeekMessagesImpl"));
yield return(asyncResult);
IEnumerable <IMessageData> messageDatas = operationStatus.EndPeekMessage(asyncResult);
context.ResultData = this.WrapPeekedMessageResults(messageDatas);
}