SDL_TryLockMutex(3)

SDL_TryLockMutex(3) 💖

okay so bestie, this is a page from the SDL3 FUNCTIONS manual — yes we're doing C library docs today, stay with me, it's gonna be iconic ✨

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✨ NAME ✨

SDL_TryLockMutex — try to lock a mutex without blocking. no waiting around, no standing in line, just vibe check the lock and go 💅

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🦋 SYNOPSIS 🦋

#include <SDL3/SDL_mutex.h>

bool SDL_TryLockMutex(SDL_Mutex *mutex);

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🌸 DESCRIPTION 🌸

so the way this works: it's literally just like SDL_LockMutex(), except — and this is the whole personality — if the mutex is not available, this function returns false immediately. no blocking, no napping, no "hold on lemme just…". it just tells you nope and moves on. 🫶

this technique is useful if you need exclusive access to a resource but you don't want to wait for it, and you're gonna come back and try again later. like checking if the bathroom's free, seeing it's not, and going to get a snack first. that's the energy. 🍓

💀 plot twist that lowkey matters: this function returns true if you pass it a NULL mutex. fr fr. so like… yeah.

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🎀 FUNCTION PARAMETERS 🎀

• mutex — the mutex you're gonna try to lock. that's it, that's the whole list, one (1) parameter, main character behavior 👑

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⭐ RETURN VALUE ⭐

returns true on success, and false if the mutex would block. so if you get false, it's not an error bestie, it's just a "not right now" 😌

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🧚 THREAD SAFETY 🧚

it is safe to call this function from any thread. any of them. all of them. go off. 🌈

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💜 AVAILABILITY 💜

this function is available since SDL 3.2.0. so if you're on something older, this is not your era, sorry 🙈

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🔥 SEE ALSO 🔥

• SDL_LockMutex(3)
• SDL_UnlockMutex(3)

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and that's the whole page, you ate that honestly 💅 the source on this one is Simple Directmedia Layer, rocking version SDL 3.4.18, and the date field in the footer is just the page name SDL_TryLockMutex(3) again (iconic of them honestly) — so yeah, that's the whole footer situation. byeeee 🎀✨