35 строки
670 B
C
35 строки
670 B
C
|
#ifndef _DELAYED_CALL_H
|
||
|
|
#define _DELAYED_CALL_H
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Poor man's closures; I wish we could've done them sanely polymorphic,
|
||
|
|
* but...
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct delayed_call {
|
||
|
|
void (*fn)(void *);
|
||
|
|
void *arg;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define DEFINE_DELAYED_CALL(name) struct delayed_call name = {NULL, NULL}
|
||
|
|
|
||
|
|
/* I really wish we had closures with sane typechecking... */
|
||
|
|
static inline void set_delayed_call(struct delayed_call *call,
|
||
|
|
void (*fn)(void *), void *arg)
|
||
|
|
{
|
||
|
|
call->fn = fn;
|
||
|
|
call->arg = arg;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void do_delayed_call(struct delayed_call *call)
|
||
|
|
{
|
||
|
|
if (call->fn)
|
||
|
|
call->fn(call->arg);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void clear_delayed_call(struct delayed_call *call)
|
||
|
|
{
|
||
|
|
call->fn = NULL;
|
||
|
|
}
|
||
|
|
#endif
|