SDL_SignalAsyncIOQueue(3)

💖 SDL_SignalAsyncIOQueue 💖

okay bestie, welcome to the SDL_SignalAsyncIOQueue(3) page — a lil' function from the SDL3 FUNCTIONS fam that is genuinely the friend who texts "you up?" to wake everybody out of a nap 😭

---

✨ NAME ✨

SDL_SignalAsyncIOQueue — wake up any threads that are blocking in SDL_WaitAsyncIOResult().

like, it's giving alarm clock energy, no cap ⏰💅

---

🦋 SYNOPSIS 🦋

#include <SDL3/SDL_asyncio.h>

void SDL_SignalAsyncIOQueue(SDL_AsyncIOQueue *queue);

---

🌸 DESCRIPTION 🌸

So here's the vibe: this will unblock any threads that are sleeping in a call to SDL_WaitAsyncIOResult for the specified queue, and cause them to return from that function. literally waking them up mid-nap 🫶

It's highkey useful when you're destroying a queue and you need to make sure nothing is touching it indefinitely. In this case, once this call completes, the caller should take measures to make sure any previously-blocked threads have returned from their wait and will not touch the queue again — perhaps by setting a flag to tell the threads to terminate and then using SDL_WaitThread() to make sure they've done so. (yes bestie, the flag + SDL_WaitThread() combo is the main character move here 👑)

⚠️ careful queen: after you signal, the threads might not have actually come back yet. Do the flag thing and the SDL_WaitThread() thing before you go touching that queue again, fr fr. 💀

---

🎀 FUNCTION PARAMETERS 🎀

• queue — the async I/O task queue to signal. that's the one getting the wake-up call 📞✨

---

🧚 THREAD SAFETY 🧚

It is safe to call this function from any thread. periodt. 💅

---

🌈 AVAILABILITY 🌈

This function is available since SDL 3.2.0. 🍓

---

⭐ SEE ALSO ⭐

• SDL_WaitAsyncIOResult(3) — the function whose sleepy lil threads you're waking up 😴➡️😳

---

Simple Directmedia Layer · SDL 3.4.18 · SDL_SignalAsyncIOQueue(3)

okay that's the whole page bestie, go signal your queues and slay 💖✨🎀🦋🌸💅🫶