jehanne/sys/src/kern/port/ref.c

31 lines
434 B
C

/* Copyright (C) Charles Forsyth
* See /doc/license/NOTICE.Plan9-9k.txt for details about the licensing.
*/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
int
incref(Ref *r)
{
int x;
x = ainc(&r->ref);
if(x <= 0)
panic("incref pc=%#p", getcallerpc());
return x;
}
int
decref(Ref *r)
{
int x;
x = adec(&r->ref);
if(x < 0)
panic("decref pc=%#p", getcallerpc());
return x;
}