---
name: "SDL_CleanupTLS"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_CleanupTLS"
---

# SDL\_CleanupTLS(3)

Cleanup all TLS data for this thread.

## NAME

SDL\_CleanupTLS - Cleanup all TLS data for this thread.

## HEADER FILE

Defined in SDL3/SDL\_thread.h

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**void SDL\_CleanupTLS(void);**

## DESCRIPTION

If you are creating your threads outside of SDL and then calling SDL functions, you should call this function before your thread exits, to properly clean up SDL memory.

## THREAD SAFETY

It is safe to call this function from any thread.

## AVAILABILITY

This function is available since SDL 3.2.0.