Man page - sdl_memorybarrieracquire(3)

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Manual

SDL_MemoryBarrierAcquire

NAME
HEADER FILE
SYNOPSIS
DESCRIPTION
THREAD SAFETY
AVAILABILITY
SEE ALSO

NAME

SDL_MemoryBarrierAcquire - Insert a memory acquire barrier (macro version).

HEADER FILE

Defined in SDL3/SDL_atomic.h

SYNOPSIS

#include "SDL3/SDL.h"

#define SDL_MemoryBarrierAcquire() SDL_MemoryBarrierAcquireFunction()

DESCRIPTION

Please see SDL_MemoryBarrierRelease
for the details on what memory barriers are and when to use them.

This is the macro version of this functionality; if possible, SDL will use compiler intrinsics or inline assembly, but some platforms might need to call the function version of this,

SDL_MemoryBarrierAcquireFunction , to do the heavy lifting. Apps that can use the macro should favor it over the function.

THREAD SAFETY

Obviously this macro is safe to use from any thread at any time, but if you find yourself needing this, you are probably dealing with some very sensitive code; be careful!

AVAILABILITY

This macro is available since SDL 3.2.0.