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Questions tagged [timer]

This tag is for questions about using timers in code to make things happen in a certain order or for gathering amount of time elapsed.

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4 votes
2 answers
243 views

This is a simple stopwatch cli application with a few options

My goal of this when I started writing it was simply that it be able to record thousandths of a second in a very performant and accurate way. I'm not sure I have achieved the performance aspect of ...
lull's user avatar
  • 43
2 votes
1 answer
200 views

Moving Timer from a View to a ViewModeller-class?

I have a Timer in my View right now, but I want to move it outside to my ViewModel-class. I have experimented a bit and came up with a working solution. The code works and produces expected output, ...
irrbloss's user avatar
  • 123
4 votes
1 answer
957 views

Threadsafe Non-Overlapping Timer

I was working on a project recently, where I needed to process some tasks periodically, but the execution of those tasks could not overlap with one another. ...
rickmanalexander's user avatar
1 vote
0 answers
142 views

Thread-safe key-value cache with expiration

I need my cache hold items to be accessible by key. The items should disappear after a configured time period. I do not need the lifetime of items to be exactly as configured. All I need is to make ...
C-F's user avatar
  • 111
8 votes
1 answer
139 views

Simple reminders timer in C99 for POSIX

This is my first time trying out C. Simplicity was the main objective. Signals are not handled and memory is not freed (program is very small, and the OS should take care of that when program exits). ...
basedN1F48A's user avatar
3 votes
1 answer
79 views

scoped timer class (3rd revision)

Again, here is the previous question. I have (re)revised my custom scoped timer using the valuable feedback I got from a helpful member of this community. However I feel the need to ask this question ...
digito_evo's user avatar
3 votes
1 answer
2k views

Script to stop a program after a certain amount of time

I created this script because the Spotify desktop app doesn't have a built in sleep timer, and I needed one. I made it as easy to use as possible, and it can close other programs because it asks for ...
user avatar
5 votes
2 answers
181 views

Basic scoped timer struct (extensively redesigned)

Here is the original question. I have extensively revised and redesigned my custom scoped timer for my needs using the feedback I got from two helpful members of this community. However I was told to ...
digito_evo's user avatar
1 vote
0 answers
598 views

Detect Idle Time in React and JavaScript

I'm creating a functionality that detects idle time for an app if there's no activity within an hour. It works ok but I'm not sure if the approach to handling inactivity is correct? and how do I make ...
Joseph's user avatar
  • 133
5 votes
1 answer
273 views

Function to format time, from seconds to a particular expresion

From an integer X representing a time duration in seconds produce a simplified string representation. For example, given X=100, you should output: "1m40s" Use the following abbreviations w,d,...
Leandro Tabak's user avatar
0 votes
1 answer
105 views

Creating custom setTimout function using requestAnimationFrame loop

I created a function using requestAnimationFrame loop that works pretty much like the plain JS setTimeout function (except that ...
gaspar's user avatar
  • 163
5 votes
3 answers
2k views

Heartbeats per minute in vanilla HTML JS

Attached is a fun little snippet demonstrating a button to be clicked along with your heartbeat and see how many beats per minute you're at. This is a mwe of the concept, any feedback is appreciated. ...
async await's user avatar
5 votes
1 answer
717 views

Bash script simple countdown timer with dotted output

My goal is to have a timer function that operates from the bash linux command line. I am looking for review and feedback. Printing the expected number of characters (dots, dashes, or bars) is nice-...
Steve T's user avatar
  • 183
4 votes
1 answer
3k views

Timer thread implementation

I've implemented a timer thread whose job is to call functions at a certain interval. The functions may be called multiple times if their interval > 0 millisec otherwise only one time. Even if the ...
Daya Shanker Prasad's user avatar
4 votes
2 answers
145 views

I wrote a simple time measurement/compare library in C++ [TimeIt]

C++ Timeit A quick C++ library to measure/compare code execution time Features Easy include and just call timeit() or ...
Maysara Elshewehy's user avatar
2 votes
1 answer
512 views

Clear output line in terminal after use for countdown (different length strings)

The method to overwrite the same line is well known and I use it for countdown, but what about when the next output string has a different size and will be generated by a single print? That's the ...
Digital Farmer's user avatar
5 votes
3 answers
476 views

Templatizing a Timer class

I'm making a timer class in C++. This is the overview: ...
Alex CB's user avatar
  • 175
1 vote
0 answers
155 views

Timer with input, sound and flashing ( Just timer :) )

I know that this program is not very outstanding, but I'm learning "Python" and decided to publish this code in order to get some advice and parting words and overall evaluation of the ...
Feraun's user avatar
  • 41
2 votes
1 answer
201 views

Program to check if a window is opened or not during some time interval

I'm trying to write a program that will check if a window is opened or not, during a given time. I was able to do that, but now I'm trying to make my code look cleaner. I don't like how I implement ...
Minh Hoang's user avatar
6 votes
3 answers
1k views

Python analog clock with turtle - runs slow

I made a python analog clock program with turtle. The problem is, it takes about 1.4 seconds to loop, so it only moves the second hand every 1.4 seconds. Its probably cuz my computer is slow... ...
Kovy Jacob's user avatar
8 votes
0 answers
751 views

A VBA program to quantify the performance of code execution timers

Motivation I am interested in optimising the execution time of code with short (fast) execution times on the order of microseconds (µs), but that will be used with high frequency (e.g. like ...
vbAdder's user avatar
  • 181
2 votes
1 answer
343 views

Leaky Bucket Algorithm with no Queue

Basic implementation of a leaky bucket, the idea is you call it by saying I will allow e.g. 5 login attempts per 60 seconds. ...
CaptainCodeman's user avatar
6 votes
3 answers
1k views

Safe Windows API Timers for Excel

Update Feb 2023 This solution is no longer maintained here or on GitHub, mainly because I do not need a timer solution anymore. As seen below, the only purpose of this approach was to get a reliable, ...
Cristian Buse's user avatar
3 votes
2 answers
2k views

Retry a callback function n times until success

I want to make a function to retry calling callback n times until it return TRUE; Here's my current code: ...
gidiwe2427's user avatar
4 votes
9 answers
690 views

Simple stop watch class

I've made a little library where I add some functionalities from time to time that I miss in the Java standard library. I am sad that the Java library for example has no stop watch class that allows ...
Dexter Thorn's user avatar
  • 2,174
3 votes
1 answer
689 views

Simple stopwatch in C

A very simple stopwatch. Intended to be used for simple benchmarking when you want to do a task several times, but exclude some setup code from the benchmarking. Some things I have already considered: ...
klutt's user avatar
  • 903
3 votes
1 answer
1k views

Timer for event throttling

I have the following problem. I want to write a class that handles events and passes it through but reduce its number if there recently was an event. Basically it is debounce. However there is a ...
Irdis's user avatar
  • 131
7 votes
2 answers
5k views

Time duration conversion with units

I recently was asked to upgrade some C++11 code to add a feature by which the user can set a time duration from the command line of the program. The requirement was to have a default time of 1500 ms ...
Edward's user avatar
  • 66.5k
6 votes
3 answers
924 views

A priority based timer using priority queue

I am trying to implement a priority-based timer where certain events are fired out based on their expiry and the priority. So if there are 3 timers with the following expiry time and priorities ...
xyf's user avatar
  • 508
2 votes
1 answer
909 views

watchdog for c++11

I created a watchdog/notifier in C++ and wanted to make it better so it could be used by multiple people. The idea is that there is a timer class and event. client create events and pass a lambda ...
Kumar Roshan Mehta's user avatar
7 votes
1 answer
937 views

Digital clock with Python Tkinter

While learning about python tkinter, I decided to make a digital clock: ...
TheHappyBee's user avatar
3 votes
0 answers
268 views

C# class library for managing recurring background operations

I have written a class library for creating timer-based bacground operations in .NET projects. The idea is to be able to create and manage (start/stop/resume/cancel) recurring background operations ...
TDMR87's user avatar
  • 31
3 votes
0 answers
53 views

Python script that getting list of all files with specific ext starting from the current folder. Using timer for reporting about the process

I am using a function that returns a list of all files (full path for each of them) with the given extension in the given folder and all subfolders. As the process is quite long and user can get ...
SlavaB's user avatar
  • 31
2 votes
3 answers
7k views

A Countdown Timer with reset functionality in pure Javascript

This works for me, but is this the right way to create this timer? I might be naive about this but I think this is close to perfect in pure JS. What would be the drawbacks of using this Timer compared ...
Myke24's user avatar
  • 21
3 votes
1 answer
600 views

Windows high resolution timing class

I'm attempting to implement a high resolution class used to time the execution time of functions in Windows. After using this documentation, I have come up with the following: ...
George Tian's user avatar
2 votes
1 answer
60 views

Detect discontinuities in Windows clock in Java

Please review the code below, which detects discontinuities in Windows system clock in long-running programs. ...
Dale's user avatar
  • 121
3 votes
2 answers
835 views

Timer with interval function

I've been tasked with writing a function that executes a passed function every interval, passed to the function by the user. Below is the code, and how to call it: ...
Linny's user avatar
  • 10.2k
1 vote
1 answer
93 views

Allow adding errors and warnings and remove both after a while with seperate timers

I use this in my Blazor application, letting other services send errors or warnings to this AlertService. The service triggers an update of a component which simply displays the messages, errors in ...
Metallkiller's user avatar
4 votes
0 answers
156 views

Just a digital clock in Swing

I've written a little clock implementation in Java Swing. It now seems to work flawlessly after having terrible Swing specific timing problems. Please indicate if this is the way to draw the clock and ...
Maarten Bodewes's user avatar
3 votes
0 answers
53 views

n executions of a periodic goroutine

I'm new to Go and have a use-case for periodically executing an async work-function. I want the interval between work-function executions to be constant (not the time between one finishing and the ...
geofflittle's user avatar
7 votes
1 answer
218 views

JS stopwatch using the observer pattern

I'm learning OOP and also trying to learn and implement some design patterns. This question is a follow-up of Stopwatch interface OOP (Vanilla JS) The app is available in https://nacho-p5.github.io/ ...
nabla-f's user avatar
  • 163
8 votes
3 answers
395 views

Stopwatch interface OOP (Vanilla JS)

I'm learning OOP and the first exercise of the course was to made a Stopwatch class. I did it really fast and decided to make an interface for this little app. I created the interface. Basically I ...
nabla-f's user avatar
  • 163
2 votes
0 answers
48 views

Refresh the List box with new rooms from the server every 3 seconds [closed]

So i have a server which I send a Request to and it sends me back a list of rooms,Now i made a window for joining rooms and I'm trying to refresh it every 3 seconds but when i use the Timer thread to ...
tameer kenaan's user avatar
1 vote
2 answers
783 views

sleepless timer that does not lose time and handles spurious wakes

I have written a timer class. Here it is in all its "glory" with some functions around it to test it: https://rextester.com/LQSXUA43758 Below is the class on its own, note it also relies on ...
code_fodder's user avatar
0 votes
1 answer
940 views

Run a timer while waiting for user input [closed]

I am making a C# console maths test where the user answers maths questions. I am trying to add a timer to the test, I have managed to make a timer but when I run my code it becomes a mess! Here is ...
qqqqqkks's user avatar
  • 161
2 votes
2 answers
66 views

Simple Timer Program

I have built a timer program in JavaScript. It decrements one counter every second, and if that counter is at zero, it decrements another counter, and sets the first counter to 59. If the second ...
JSScratchDouble's user avatar
2 votes
1 answer
2k views

Timer in Java with GUI

I have created a timer with GUI in Java. Here's the code: ...
user avatar
3 votes
1 answer
2k views

Timer for scheduling tasks in C++11

I have made a simple Timer class used for scheduling tasks. While defining the interface, I have followed the interface of a ...
NutCracker's user avatar
3 votes
1 answer
434 views

ValueAnimator for IOS - Did I butcher it up?

I am trying to make an IOS tool similar to Android's ValueAnimator... more or less This is useful for situations where you simply want a value to "animate" over time, but rather than necessarily ...
user avatar
5 votes
2 answers
343 views

Productivity/Timer app that uses twilio to send SMS-reminders

I wrote a timer app in python using both twilio and the timer module; sends an sms to my phone after a certain amount of time has passed. While it works without a doubt, I wanted to gather some ideas/...
Red Mango's user avatar

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