1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _DELAYED_CALL_H
3#define _DELAYED_CALL_H
4
5/*
6 * Poor man's closures; I wish we could've done them sanely polymorphic,
7 * but...
8 */
9
10struct delayed_call {
11 void (*fn)(void *);
12 void *arg;
13};
14
15#define DEFINE_DELAYED_CALL(name) struct delayed_call name = {NULL, NULL}
16
17/* I really wish we had closures with sane typechecking... */
18static inline void set_delayed_call(struct delayed_call *call,
19 void (*fn)(void *), void *arg)
20{
21 call->fn = fn;
22 call->arg = arg;
23}
24
25static inline void do_delayed_call(struct delayed_call *call)
26{
27 if (call->fn)
28 call->fn(call->arg);
29}
30
31static inline void clear_delayed_call(struct delayed_call *call)
32{
33 call->fn = NULL;
34}
35#endif
36