queue

How to get an Azure Webjob to process multiple queue messages?

落花浮王杯 提交于 2021-02-08 07:37:47
问题 In Azure worker roles, you can create a batch job that processes a list of messages. I'm wondering if there is something similar to that for Azure WebJobs? Currently you can trigger a webjob from a queue as follows: public static void ProcessQueueMessage([QueueTrigger("queue")] string message, TextWriter log) Is there some way to pull and process a list of messages? 回答1: No, there is no inbuilt binding for a batch of Queue messages currently. However, someone in the community has recently

How to add/design callback function

笑着哭i 提交于 2021-02-08 03:22:25
问题 How do I setup/register a callback function, in C++, to call a function when there is data to be read from a queue? Edit 1: Using Neil's answer for a complete answer (in header file): #include <vector.h> class QueueListener { public: virtual void DataReady(class MyQueue *q) = 0; virtual ~QueueListener() {} }; class MyQueue { public: void Add (int x) { theQueue.push_back(x); for (int i = 0; i < theCallBacks.size(); i++) { theCallBacks[i]->DataReady(this); } } void Register (QueueListener *ql)

How to add/design callback function

浪子不回头ぞ 提交于 2021-02-08 03:21:32
问题 How do I setup/register a callback function, in C++, to call a function when there is data to be read from a queue? Edit 1: Using Neil's answer for a complete answer (in header file): #include <vector.h> class QueueListener { public: virtual void DataReady(class MyQueue *q) = 0; virtual ~QueueListener() {} }; class MyQueue { public: void Add (int x) { theQueue.push_back(x); for (int i = 0; i < theCallBacks.size(); i++) { theCallBacks[i]->DataReady(this); } } void Register (QueueListener *ql)

How to add/design callback function

此生再无相见时 提交于 2021-02-08 03:21:14
问题 How do I setup/register a callback function, in C++, to call a function when there is data to be read from a queue? Edit 1: Using Neil's answer for a complete answer (in header file): #include <vector.h> class QueueListener { public: virtual void DataReady(class MyQueue *q) = 0; virtual ~QueueListener() {} }; class MyQueue { public: void Add (int x) { theQueue.push_back(x); for (int i = 0; i < theCallBacks.size(); i++) { theCallBacks[i]->DataReady(this); } } void Register (QueueListener *ql)

Operation Queue not executing in order even after setting priority and dependency on Operations

血红的双手。 提交于 2021-02-07 19:42:28
问题 I am making three api calls and want that API1 should execute first, once completed API2 should execute followed by API3. I used operation queue for this with adding dependency over operations. I tried setting priority as well but not getting api calls in order. Help me out how to make it properly. Code is like this : let op1 = Operation() op1.completionBlock = { self.APICall(urlString: self.url1) } op1.queuePriority = .veryHigh let op2 = Operation() op2.completionBlock = { self.APICall

Operation Queue not executing in order even after setting priority and dependency on Operations

守給你的承諾、 提交于 2021-02-07 19:42:12
问题 I am making three api calls and want that API1 should execute first, once completed API2 should execute followed by API3. I used operation queue for this with adding dependency over operations. I tried setting priority as well but not getting api calls in order. Help me out how to make it properly. Code is like this : let op1 = Operation() op1.completionBlock = { self.APICall(urlString: self.url1) } op1.queuePriority = .veryHigh let op2 = Operation() op2.completionBlock = { self.APICall

Using Queue with tkinter (threading, Python 3)

心不动则不痛 提交于 2021-02-07 10:47:55
问题 I have a script in Python 3 and I'm trying to make a GUI for it using tkinter. Here is a complete example of working code: #!/usr/bin/python # coding: utf-8 import pickle import openpyxl from tkinter import * import threading import queue class Worker(): def __init__(self): self.one_name_list = [] self.dic = {} self.root = Tk() self.root.title("GUI Python") self.root.geometry("820x350") self.thread_queue = queue.Queue() self.btn1 = Button(text="start counting", width = '20', height = '1',

Compilation Error: void value not ignored as it ought to be in std::queue::pop() [duplicate]

爷,独闯天下 提交于 2021-02-05 12:29:31
问题 This question already has answers here : Why doesn't std::queue::pop return value.? (7 answers) Closed 3 years ago . Write a function to connect all the adjacent nodes at the same level in a binary tree. Structure of the given Binary Tree node is like following. struct Node{ int data; Node* left; Node* right; Node* nextRight; } Initially, all the nextRight pointers point to garbage values. Your function should set these pointers to point next right for each node. My code is #include<queue> /*

Queuing asynchronous task in C#

霸气de小男生 提交于 2021-02-05 09:59:49
问题 I have few methods that report some data to Data base. We want to invoke all calls to Data service asynchronously. These calls to data service are all over and so we want to make sure that these DS calls are executed one after another in order at any given time. Initially, i was using async await on each of these methods and each of the calls were executed asynchronously but we found out if they are out of sequence then there are room for errors. So, i thought we should queue all these

PostgreSQL: How to select and update from a table as if it were a queue

假如想象 提交于 2021-01-29 20:51:37
问题 I'd like several processes to pull from a table as if it were a queue. The requirements: Order of the items is important, and must be specified in the query Each process (of which there are an unknown amount) can get chunks of N items at a time Each item must only be processed once I don't want to lock the table (for performance reasons) I have a working solution, but would like some other opinions. First attempt: UPDATE foo SET should_select=0 FROM (SELECT * FROM foo WHERE should_select=1