queue

问题 Scenario I need a background upload queue that sends files to a server. The queue should send the files in sequential order as they are pushed into the queue (FIFO). My solution var pendingFiles = []; var filesOperation = null; uploadNextAsync = function(file) { var next; if (!pendingFiles.length) { return WinJS.Promise.as(); } next = pendingFiles.shift(); fileslogger.debug("Uploading " + next); return fileQuery.folder.getFileAsync(next).then(function(file) { return Server.sendFileAsync(file)

问题 Queue[,] inventqueue = new Queue[10,7]; for(int row = 0; row < inventqueue.GetLength(0); row++) { for (int col = ; col < inventqueue.GetLength(1); col++) { if(inventqueue[row,col].Count != 0) { MessageBox.Show("Theres a queue on " + row + "," + col); } } } I have been trying this out but visual studio is giving me the error "Object reference not set to an instance of an object." 回答1: You're allocating only the double array, you still need to allocate Queues for each entry in the array like:

问题 This is the situation : I have a Laravel 4 app with Iron mq installed in order to speed up the process. It is possible to book a car and to register in the site. In both cases a mail is sent. The problem is that after installing Iron mq the mail are not sent anymore. All the rest is done, inserting data in the database, but the mails sending no. In Iron mq dashboard the queues are instead regularly received and apparently fired.. This is the route : /* CARS */ Route::get('focus', function() {

问题 Given the following queue implementation below, I was wondering whether it would be possible to access the class' members after it is popped from the queue. Basically I am supposed to keep track of how long an item is held in a queue until it is popped and I'm kind of lost on how to do that. The time is represented as the number of iterations of a specific loop(not shown below) #include <queue> class Plane { public: Plane() {} }; std::queue<Plane> landing; int main() { landing.push(Plane());

问题 Please help me resolve the problem. I'm trying to send data from gui thread to another thread via a queue. But I got a problem. While another thread is using queue, GUI thread add an object to the queue, the Gui thread will be blocked some minisecond. So GUI is not smooth. My class is: public enum AresManager { MANAGER; Queue<AresAction> actionsQueue = new LinkedList<AresAction>(); public synchronized void sendAction(Context context, AresAction action) { actionsQueue.add(action); Intent

问题 Wow, I wish I'd known about this page https://github.com/zaphoyd/websocketpp/blob/experimental/examples/broadcast_server/broadcast_server.cpp written by my c++ hero https://stackoverflow.com/users/1047661/zaphoyd before I started my c++ websocket adventure. Tons of lessons there. If I'm reading it correctly (that's a stretch lol), it looks like connections and message sends & receipts are all handled in a single thread (can't wait til he "multi-threads" that or whatever it's called since he

问题 I'm developing application in Java which connects to different web-servers via HTTP protocol (sends them request and waits for response). I would like to use pattern with queue and worker pool, so I'd like to know if there any frameworks in Java providing methods for this? 回答1: I think what you're asking for is a threadpool. It has a queue of tasks and a number of threads working on those tasks. A little bit of googling for "java threadpool" landed me there, might be relevant. http://download

问题 java.util.Queue<TreeNode> queue = new java.util.LinkedList<TreeNode>(); LinkedList implements Queue. Shouldn't Queue be on the right side of the above statement and LinkedList the left? 回答1: In Java, you can assign a value to a variable of the same type or a more general type. In your example, new LinkedList<TreeNode>() is a value. Since LinkedList implements Queue , it's more specific than Queue . i.e. A LinkedList is a Queue . For instance, all three of these are valid Object o = new

问题 1 // This program helps staff manage customers' 2 // orders and decide who should be given a ready dish. 3 4 import java.util.*; 5 6 // This class represents all orders of customers 7 class ListOrder { 8 9 // Data member 10 private int numDishes; 11 // All dishes which the restaurant offers 12 private String[] dishes; 13 // Each dish has a queue of customers who ordered this dish 14 // All such queues are put inside an ArrayList called dishQueues 15 private ArrayList<Queue<Integer>>

问题 I would like to remove duplicate entries from a queue in an efficient way. The queue has a custom class with DateTime and FullPath and a few other things private Queue<MyCustomClass> SharedQueue; The DateTime in the class is the timestamp when inserted into the queue. The logic I would like to use is as following: Remove duplicates from the queue if the FullPath is identical within a 4 second window (i.e. if added to queue within 4 seconds of a duplicate fullpath). I have the events that I