io_uring_queue_exit(3)

💖 io_uring_queue_exit — the cleanup queen 💖

okay bestie, this one's from the liburing Manual, and it's the breakup text your io_uring ring deserves ✨

✨ NAME ✨

io_uring_queue_exit — tear down io_uring submission and completion queues 🧹💅

🌸 SYNOPSIS 🌸

#include <liburing.h>

void io_uring_queue_exit(struct io_uring *ring);

🦋 DESCRIPTION 🦋

so like. you know how io_uring_queue_init(3) sets everything up and gets your ring all cute and ready? 🎀 well io_uring_queue_exit(3) is the reverse — it releases all the resources that io_uring_queue_init(3) acquired and initialized. every single one. no crumbs left. periodt.

the way it does it, in order, because she's organized:

1. first it unmaps the memory shared between the application and the kernel — like, that shared-memory situationship? over. ✂️
2. then it closes the io_uring file descriptor — door shut, lights off, bye 👋

and that's it. no return value, no drama, just a clean exit. genuinely iconic behaviour honestly.

💀 ngl bestie, if you don't call this, you're lowkey leaking that fd and that mapping. not a vibe. call the cleanup function. fr fr.

🫶 RETURN VALUE 🫶

None. literally nothing. she gives nothing back and that's the point 💅

⭐ SEE ALSO ⭐

• io_uring_setup(2)
• mmap(2)
• io_uring_queue_init(3)

written under the liburing-0.7 banner, dated July 10, 2020 — yeah she's vintage but she still ate 🌈 🎀✨