1 #include <u.h>
2 #include <libc.h>
3 #include "9proc.h"
4 
5 static Lock privlock;
6 static ulong privmap;
7 
8 int
9 privalloc(void)
10 {
11 	int i;
12 
13 	lock(&privlock);
14 	for(i=0; i<NPRIV; i++)
15 		if((privmap&(1<<i)) == 0){
16 			privmap |= (1<<i);
17 			unlock(&privlock);
18 			return i;
19 		}
20 	unlock(&privlock);
21 	return -1;
22 }
23 
24 void**
25 privmem(int i)
26 {
27 	Uproc *up;
28 
29 	up = _p9uproc(0);
30 	return &up->priv[i];
31 }