queue

问题 I'm writing a piece of code which will allow us to: View a list of all dead letter messages that exist within an Azure Service Bus Topic (Peek) Fix and send them back to the Topic Delete them from the dead letter queue upon resending. I have no issues with the first 2 points; using the Peek receive mode I can show a list of messages and we can edit and resend with no issues. The problem comes when I want to actually delete the message from the dead letter queue. How do we do this on a message

问题 I have created a custom generic queue which implements a generic IQueue interface, which uses the generic Queue from the System.Collections.Generic namespace as a private inner queue. Example has been cleaned of irrelevant code. public interface IQueue<TQueueItem> { void Enqueue(TQueueItem queueItem); TQueueItem Dequeue(); } public class CustomQueue<TQueueItem> : IQueue<TQueueItem> { private readonly Queue<TQueueItem> queue = new Queue<TQueueItem>(); ... public void Enqueue(TQueueItem

问题 According to the MSDN: The Monitor class consists of static (in C#) or Shared (in Visual Basic) methods that operate on an object that controls access to the critical section. The following information is maintained for each synchronized object: A reference to the thread that currently holds the lock. A reference to a ready queue, which contains the threads that are ready to obtain the lock. A reference to a waiting queue, which contains the threads that are waiting for notification of a

问题 I try to find coordinate values with the same values. And I'm going to link three coordinate values. I am doing this to make mesh at Unity. I first found the same coordinates by bfs method. And there is a problem trying to connect the three adjacent coordinates. I did the following to find out if there are any adjacent points in eight directions. private int[,] fx = new int[8, 2] { { -1, 0 }, { -1, 0 }, { 1, 0 }, { 1, 1 }, { -1, 0 }, { -1, 0 }, { 0, 1 }, { 0, 1 } }; private int[,] fy = new

问题 I try to find coordinate values with the same values. And I'm going to link three coordinate values. I am doing this to make mesh at Unity. I first found the same coordinates by bfs method. And there is a problem trying to connect the three adjacent coordinates. I did the following to find out if there are any adjacent points in eight directions. private int[,] fx = new int[8, 2] { { -1, 0 }, { -1, 0 }, { 1, 0 }, { 1, 1 }, { -1, 0 }, { -1, 0 }, { 0, 1 }, { 0, 1 } }; private int[,] fy = new

问题 I'd like to use POSIX semaphores to manage atomic get and put from a file representing a queue. I want the flexibility of having something named in the filesystem, so that completely unrelated processes can share a queue. I think this plan rules out pthreads. The named posix semaphores are great for putting something in the filesystem that any process can see, but I can't find the standard CondWait primitive: ... decide we have to wait .... CondWait(sem, cond); When CondWait is called by a

问题 I'm having trouble understanding how to implement queue into a multiprocessing example below. Basically, I want the code to: 1) spawn 2 processes (done) 2) split up my id_list into two portions (done) 3) have each process iterate over the list printing out each item, and only close when its done with the list. I know I have to implement some type of Queueing system, and pass that to each worker, but I'm not sure how to do that. Any help would be much appreciated. from multiprocessing import

问题 Using the Azure NodeJS libraries, I'm unable to receive messages off of an Azure Service Bus Queue any faster than 5 or 6 messages a second. This is orders of magnitude slower than what the official docs suggest. I'm using a Queue with partitioning turned off (as recommended here Polling an Azure Service Bus Queue from an Azure WebJob using Node.js), reading in ReceiveAndDelete mode. Essentially I am just calling .receiveQueueMessage() repeatedly. Based on this question (Azure Service Bus

问题 I am currently designing a correlation engine in java which is extracting data from pdf files and correlating (raising alerts where necessary) it structured data from a relational database. Focusing on the processing of the pdf files the system consists of: A component which is performing the custom extraction from the pdf. A component which parses the sometimes unordered unclean data into the required data structures A normalisation component which will normalises the values for comparison

问题 I'm developing a django IPN plugin that saves IPN data to a model and then calls a post_save signal. I'm worried that under this use case (gunicorn, gevent, etc) that the signals may be called/completed asynchronously. The IPN often sends more than 1 request to the ipn url, and I need to be able to process those requests in order. Should I use a queue for this? Would simple python queue's work better, or should I use something like kombu + celery (with 1 worker)? 回答1: Not sure synchronicity