CK_PR_BARRIER(3)

💅 ck_pr_barrier — compiler optimization barrier

okay bestie, gather round, because this one is short but it is mighty 🫶 it's ck_pr_barrier(3), and it lives in the Concurrency Kit (aka libck, link it with -lck) 💖

✨ SYNOPSIS ✨

#include <ck_pr.h>

void
ck_pr_barrier(void);

like, that's it. no args. no return. no drama. iconic 💅

🌸 DESCRIPTION 🌸

so ck_pr_barrier(3) is the vibe check for your compiler 👑 its whole job is to disable code movement optimizations across the invocation of the function. that's it. that's the function.

basically, your compiler loves to shuffle instructions around for funsies (it's very main character about it), and this call tells it: nope, don't reorder stuff across this line, bestie 🎀

note that this is about code movement optimizations — the compiler's little reordering games — and nothing more, no cap. don't go assuming extra guarantees it doesn't claim 🙈

🦋 SEE ALSO 🦋

the whole friend group, fr fr 🫶 go read these next:

• ck_pr_fence_load(3)
• ck_pr_fence_load_depends(3)
• ck_pr_fence_store(3)
• ck_pr_fence_memory(3)
• ck_pr_fas(3)
• ck_pr_load(3)
• ck_pr_store(3)
• ck_pr_faa(3)
• ck_pr_inc(3)
• ck_pr_dec(3)
• ck_pr_neg(3)
• ck_pr_not(3)
• ck_pr_add(3)
• ck_pr_sub(3)
• ck_pr_and(3)
• ck_pr_or(3)
• ck_pr_xor(3)
• ck_pr_cas(3)
• ck_pr_btc(3)
• ck_pr_bts(3)
• ck_pr_btr(3)

and if you want even more lore, additional information is available at http://concurrencykit.org/ ⭐

and that's the whole page, bestie, you ate it 💖 this one's dated April 7, 2013 and it's the ck_pr_barrier(3) page from the Concurrency Kit — go forth and barrier responsibly ✨🎀