std::atomic...g_notify_all(3)

🌸 NAME 🌸

okay so bestie, welcome to the std::atomic_flag_notify_all page 💖 this is the std::atomic...g_notify_all(3) manual page from the C++ Standard Library, and yes the function name is literally:

• std::atomic_flag_notify_all — std::atomic_flag_notify_all

periodt, that's the name 😌

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🦋 Synopsis 🦋

Defined in header <atomic>:

void atomic_flag_notify_all( std::atomic_flag* object ) noexcept;

(1) (since C++20)

void atomic_flag_notify_all( volatile std::atomic_flag* object )
noexcept;

(2) (since C++20)

So this function performs atomic notifying operations ✨ it unblocks all threads blocked in atomic waiting operations — specifically std::atomic_flag_wait(), std::atomic_flag_wait_explicit(), or std::atomic_flag::wait() — on *object, if there are any. If there aren't any, it does nothing. Literally nothing, no cap 💅

It is equivalent to object->notify_all().

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🎀 Parameters 🎀

• object — pointer to the atomic_flag object to notify 🫶

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✨ Return value ✨

none 😭 literally nothing comes back, bestie.

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💜 Notes 💜

This form of change-detection is often more efficient than simple polling or pure spinlocks. highkey iconic behavior, ngl 🔥

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🌈 Example 🌈

This section is incomplete Reason: no example

not me noticing there's no example 😭 it's giving unfinished homework, but that's what the page says 🙈

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👑 See also 👑

• notify_one — notifies at least one thread waiting on the atomic object. (C++20) public member function of std::atomic_flag.
• notify_all — notifies all threads blocked waiting on the atomic object. (C++20) public member function of std::atomic_flag.
• atomic_flag_wait — blocks the thread until notified and the flag changes. (C++20) function.
• atomic_flag_wait_explicit — blocks the thread until notified and the flag changes. (C++20) function.
• atomic_flag_notify_one — notifies a thread blocked in atomic_flag_wait. (C++20) function.

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🍓 Category 🍓

• Category: Todo no example

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okay that's the whole page, bestie 🧚💖 shoutout to cppreference.com, dated 2024.06.10 — and yes, that's the cute little footer energy at the very end. slay ✨💅