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
10 struct 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... */
18 static 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
25 static inline void do_delayed_call(struct delayed_call *call)
26 {
27 if (call->fn)
28 call->fn(call->arg);
29 }
30
31 static inline void clear_delayed_call(struct delayed_call *call)
32 {
33 call->fn = NULL;
34 }
35 #endif
36
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