 |
priv.c - 9base - revived minimalist port of Plan 9 userland to Unix |
 |
git clone git://git.suckless.org/9base |
 |
Log |
|
Files |
|
Refs |
|
README |
|
LICENSE |
|
--- |
|
priv.c (377B) |
|
--- |
|
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 } |
|
32 |
