rtapi_list3rtapi
Rtapi wrappers for linux kernel functionality
Usage
#include <rtapi_list.h>
struct rtapi_list_head;
void rtapi_list_add(struct rtapi_list_head *new_, struct rtapi_list_head *head);
void rtapi_list_add_tail(struct rtapi_list_head *new_, struct rtapi_list_head *head);
void rtapi_list_del(struct rtapi_list_head *entry);
void RTAPI_INIT_LIST_HEAD(struct rtapi_list_head *entry);
rtapi_list_for_each(pos, head) { ... }
rtapi_list_entry(ptr, type, member)
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 from init/cleanup code and from realtime tasks. These functions will cause illegal instruction exceptions in non-realtime components, as well as in uspace rtapi_app when it is not setuid root.
Return value
As in Linux.
Releases
2 releases since Debian 12 (Bookworm); the text changed 1 time.