queue

问题 I have multiple Bull Queues in my NodeJS project which will run if previous queue is executed successfully. I'm trying to verify some email addresses here. Check the Email format (formatQueue) Email Existence using npm email-existence package (existenceQueue) The formatQueue is less time taking process, which wil run the RegEx and validate the Email format. but The email-existence package takes around 5-10 seconds to complete. formatQueue and existenceQueue works properly if there are less

问题 I have a program that is meant to take in a Queue<String> that contains the elements of a prefix operation (i.e. an operation that is stated "+ 4 2" instead of "4 + 2", which is infix), then output the integer answer (just assume that a double is never needed, okay?). It works correctly for any multiplication or division operation, but fails in any addition or subtraction operation, and worse, in an inconsistent manner. For example, the output to "- 5 1" is 5, which would suggest it's adding

问题 In C++ , how do you create a simple fixed size queue ? I have done it multiple times in Java and Python but am looking for a C++ based way of doing so. I need a simple FIFO queue with only 2 elements in order to use the push and pop utilities: I am already aware of the fact that I could implement my own class to perform this kind of restriction but my answer aims to know if there exist any already available solution to this. Or is it maybe possible to accomplish the same task with an array?

问题 I have this interesting situation. I have a bunch of structs that hold a string. struct foo { string mStringName; } vector<foo> mFoos; I also have a queue of string references queue<string&> mStringQueue; And finally, I have a function that accepts a const string& void Bar(const string&); Heres the situation. //...in some loop currentFoo = mFoos[index]; // Queue up the string name. mStringQueue.push(currentFoo.mStringName); //...Later on, go through our queue and pass each one to the function

问题 I am using bull queue to process some jobs. In the current scenario each job is some kind of an operation. So whenever an operation(job) among a list of operations in the queue fails, queue has to stop processing the remaining jobs(operations). What have I tried so far? So i tried to pause the queue when a particular job fails. Next the queue is resumed when it drains. Now when it is resumed the queue does not start from the failed job instead picks up the next job. var Queue = require('bull'

问题 I want to implement a chat system. I am stuck at the point where user sends multiple messgaes really fast. Although all the messages are reached to the server but in any order. So I thought of implementing a queue where each message shall First be placed in queue Wait for its turn Make the post request on its turn Wait for around 5 secs for the response from server If the response arrives within time frame and the status is OK, message sent else message sending failed. In any case of point 5,

问题 I want to implement a chat system. I am stuck at the point where user sends multiple messgaes really fast. Although all the messages are reached to the server but in any order. So I thought of implementing a queue where each message shall First be placed in queue Wait for its turn Make the post request on its turn Wait for around 5 secs for the response from server If the response arrives within time frame and the status is OK, message sent else message sending failed. In any case of point 5,

问题 Are there any best practices for identifying when jobs/workers finish processing a Laravel queue? The only approach I can think of is to poll the jobs table to see when there are no more jobs in the queue. The challenge I have is that I'll periodically dispatch 1,000 jobs to the queue and then some time later another 1,000 and then another. I'd like to be able to trigger an event once each batch of jobs is complete, if possible. Thanks for any suggestions or pointers. 回答1: No, there is no

问题 I have this code that should put an event in a queue each time an external program (TCPdump) creates a *.pcap file in my directory. My problem is that I always get an empty queue, although I got the print from process() function. What am I doing wrong? Is the queue correctly defined and shared between the two classes? EDIT----------------- I maybe understood why I got an empty queue, I think it is because I'm printing the queue that I initialized before it gets filled by Handler class. I

问题 I'm receiving some data over a socket and trying to add it to a Queue so it can be dequeued by another thread that is much more slow, something like a buffer. The problem is that everytime I enqueue a new value, all the values in the queue become that. byte[] aux = new byte[1464]; aux = (byte[])ar.AsyncState; //add the package to the package fifo list lock (lockPktBuffer) { packetBuffer.Enqueue(aux); } First I thought that I was passing a pointer, so all the entries are just pointing to the