SDL_CondSignal(3)

πŸ’… SDL_CondSignal β€” bestie, wake ONE of them up πŸ’…

okay so you found your way into the SDL_CondSignal(3) page, which lives in the SDL API Reference section of the manual (yes it's section 3, the library-calls girlies). pull up a chair, this one's short and sweet and honestly kinda iconic.


✨ NAME ✨

SDL_CondSignal β€” restart a thread that's waiting on a condition variable 🫢


✨ SYNOPSIS ✨

#include "SDL.h"
#include "SDL_thread.h"

int SDL_CondSignal(SDL_cond *cond);

like. that's it. that's the whole vibe. 🌸


✨ DESCRIPTION ✨

so picture this: you've got a bunch of threads all sitting around waiting on the same condition variable, cond, just chilling, napping, not doing anything with their lives. SDL_CondSignal walks in and wakes up exactly one of them. not all of them. ONE. singular. the chosen one. main character energy fr fr πŸ‘‘

it returns 0 on success, or -1 on an error β€” so like, check that return value bestie, it's giving "I have something to tell you" 😭

no cap: if you wanted to wake up <em>everybody</em> at once instead of just one lil thread, that's a different function and she's waiting for you in SEE ALSO below. don't be messy about it.

✨ SEE ALSO ✨

  • SDL_CondWait
  • SDL_CondBroadcast

go read those next, they're literally the rest of the lore πŸ¦‹


and that's the whole page!! sourced from SDL, dated Tue 11 Sep 2001, 23:00 β€” an absolute vintage moment, we love a classic πŸŽ€ mwah, go signal a thread, you got this πŸ’–βœ¨

πŸ“¦ where this page comes from