SDL_MEMORYBARRIERRELEASEFUNCTION(3)

💖 SDL_MemoryBarrierReleaseFunction(3) 💖

okay bestie, welcome to the SDL3 FUNCTIONS corner of the manual, where we talk about inserting a memory release barrier — the function version, specifically. yes, there's a macro version too. no, they're not the same. sit with me 🫶

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✨ NAME ✨

SDL_MemoryBarrierReleaseFunction — insert a memory release barrier (function version). that's the whole vibe. it's giving "barrier, but make it callable."

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🌸 SYNOPSIS 🌸

#include <SDL3/SDL_atomic.h>

void SDL_MemoryBarrierReleaseFunction(void);

look at her. no arguments, no return value, just pure void to void energy. she takes nothing and gives nothing back and honestly? iconic. 💅

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🦋 DESCRIPTION 🦋

so like, for the actual details of what a memory release barrier even is, please refer to SDL_MemoryBarrierRelease — that's the main character, this is the spinoff. ✨

this here is the function version, and it might be useful if you need to use this functionality from a scripting language, etc. (yes, "etc." — the manpage said etc., so I'm saying etc. 🎀)

also, lowkey important: some of the macro versions call this function behind the scenes, where more heavy lifting can happen inside of SDL. so she's not just a pretty face, she's also doing labor for the macros. queen behavior. 👑

but generally, though — and this is the real tea — an app written in C/C++/etc should use the macro version, because it will be more efficient. fr fr. the macro is the fast path, this function is the flexible path. pick your fighter. 💖

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😭 THREAD SAFETY 😭

obviously this function is safe to use from any thread at any time. like, obviously. 🙈

but — and hear me out — if you find yourself needing this, you are probably dealing with some very sensitive code. so be careful! seriously bestie, this is the deep end of the pool. no cap. ⚠️

not me casually reaching for release barriers in 17 threads at once... girl. be careful.

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🌈 AVAILABILITY 🌈

this function is available since SDL 3.2.0. so if you're on something older, she is simply not there yet. upgrade era. ⭐

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🎀 SEE ALSO 🎀

• SDL_MemoryBarrierRelease(3) — go read this one, it's where the actual explanation lives 💜

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mwah, that's the whole page. this little love letter came to you from Simple Directmedia Layer, version SDL 3.4.18 — written and shipped by the SDL girlies, delivered straight to your terminal. take care of your barriers and your barriers will take care of you 🧚‍♀️💖✨