rtapi_slab(3rtapi)

rtapi_slab3rtapi

Rtapi wrappers for linux kernel functionality

Usage

#include <rtapi_slab.h>

void *rtapi_kmalloc(size_t size, gfp_t g);

void *rtapi_kzalloc(size_t size, gfp_t g);

void *rtapi_krealloc(size_t size, gfp_t g);

void rtapi_kfree(void *);

Overview

In kernel space, each rtapi_xxx or RTAPI_XXX identifier is mapped to the underlying kernel functionality, if available.

In userspace, or in kernels where the underlying functionality is not provided by a kernel, generally another implementation--possibly with reduced functionality--is provided. (For example, the userspace implementation for rtapi_device_register always succeeds)

Realtime considerations

Call only from within init/cleanup code, not from realtime tasks. This function is not available from non-realtime code.

Return value

As in Linux.

Releases

2 releases since Debian 12 (Bookworm); the text changed 1 time.

  1. 12
  2. 13

From linuxcnc-uspace-dev 1:2.9.4-2+deb13u1 in Debian 13 (Trixie). Parsed by carta from the page's man source.