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| | #include <stdlib.h>
#include "libc.h"
#define COUNT 32
static void (*funcs[COUNT])(void);
static int count;
static volatile int lock[2];
void __funcs_on_quick_exit()
{
void (*func)(void);
LOCK(lock);
while (count > 0) {
func = funcs[--count];
UNLOCK(lock);
func();
LOCK(lock);
}
}
int at_quick_exit(void (*func)(void))
{
int r = 0;
LOCK(lock);
if (count == 32) r = -1;
else funcs[count++] = func;
UNLOCK(lock);
return r;
}
|