al_rest(3alleg5)

📦
version 5.2.11.3 · 4 versions
, in debian trixie, ubuntu questing, ubuntu resolute, ubuntu stonking

💤 al_rest — the Allegro 5 API page, bestie edition 💤

okay so this is a page from the Allegro reference manual, and it's all about al_rest, aka the "girl just take a nap" function. it's short, it's sweet, and it's gonna save your CPU from having a meltdown. let's get into it 💅

✨ NAME ✨

al_rest — Allegro 5 API 🌸

✨ SYNOPSIS ✨

#include <allegro5/allegro.h>

void al_rest(double seconds)

no cap, that's the whole thing. one include, one function. iconic. 👑

✨ DESCRIPTION ✨

So basically al_rest waits for the specified number of seconds. that's it, that's the vibe. it tells the system to pause the current thread for however long you asked for. your thread is literally just sitting there, chilling, doing absolutely nothing, and honestly? good for it. rest is important. 🛌✨

🚨 BUT. and this is a big but. with some operating systems, the accuracy can be in the order of 10ms. so like, it's not gonna be exact, bestie. the system is doing its best.

which means — and I cannot stress this enough — even something like:

al_rest(0.000001)

might pause for something like 10ms. 😭 a whole ten milliseconds!! for a request of one *micro*second!! the audacity. so if you were out here expecting sub-millisecond precision, this is your vibe check and you did not pass it. 💀

Also, lowkey important: go check out the section on Timer routines — it's got easier ways to time your program without using up all your CPU. because sitting in a tight loop burning through cycles is not the move, and the timer stuff is genuinely the upgrade. 🫶

🎀 the tl;dr energy 🎀

  • want your thread to pause? al_rest(seconds) ✨
  • it pauses for the seconds you pass in
  • accuracy might be like 10ms on some systems 😬
  • al_rest(0.000001) could still be ~10ms, fr fr
  • need actual timing? go read the Timer routines section, it eats 💅

that's the whole page, bestie — short, sweet, and it understood the assignment. this lil guide came to you from the Allegro reference manual, and the page itself is al_rest(3alleg5). now go let your threads rest, they've earned it 🦋💜

📦 where this page comes from