1 #include "threadimpl.h"
2 
3 void
4 incref(Ref *r)
5 {
6 	lock(&r->lk);
7 	r->ref++;
8 	unlock(&r->lk);
9 }
10 
11 long
12 decref(Ref *r)
13 {
14 	long n;
15 
16 	lock(&r->lk);
17 	n = --r->ref;
18 	unlock(&r->lk);
19 	return n;
20 }