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