add_watch_to_object(9)

💅 add_watch_to_object(9) — the Kernel API Manual, bestie edition 🎀

okay so picture this: you're in the Kernel API Manual (add_watch_to_object(9)), and you've got a new watch that needs to be attached to a watch list. that's it, that's the whole vibe. let's get into it ✨

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🌸 SYNOPSIS 🌸

int add_watch_to_object (struct watch *watch , struct watch_list *wlist
);

like, it returns an int, it takes a struct watch *watch and a struct watch_list *wlist, and it's literally doing exactly what it says on the tin 🫶

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💖 ARGUMENTS 💖

• watch — the watch you're adding 👀 the main character of this whole operation
• wlist — the watch list you're adding it to 🎀 the destination, the group chat it's getting added to

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✨ DESCRIPTION ✨

okay bestie, listen up, because there's some setup you gotta do before you call this, no cap:

watch->queue must have been set to point to the queue to post notifications to and to the watch list of the object to be watched. both things, it's giving multitasking 💅

watch->cred must also have been set to the appropriate credentials, and a ref taken on them. don't skip the ref, i'm literally begging 🙈

now the caller-side rules, and these are not optional:

• the caller must pin the queue and the list both 📌📌
• the caller must hold the list locked against racing watch additions/removals 🔒 (racing additions/removals are the enemy fr fr, do not let them in)

⭐ lowkey important: these are caller responsibilities, not "nice to haves". the function is trusting you to have done all this already. vibe check your setup before you call it 🦋

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👑 SEE ALSO 👑

• Kernel file ./kernel/watch_queue.c 📂 (yes, the whole file, go read it)
• __post_watch_notification(9)
• put_watch_queue(9)
• init_watch(9)
• remove_watch_from_object(9)
• get_watch_queue(9)

like a little friend group of watch-queue functions, obsessed honestly 🌈

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🧚 sign-off 🧚

this lil page lives in ./kernel, dated October 2026 💜 mwah, go forth and watch your objects responsibly, periodt 💅✨