1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
extern crate cortex_m_rtfm as rtfm;
use rtfm::{C1, C2, C3, C4, C5, P2, Resource};
static R1: Resource<i32, C4> = Resource::new(0);
static R2: Resource<i32, C3> = Resource::new(0);
static R3: Resource<i32, C4> = Resource::new(0);
static R4: Resource<i32, C5> = Resource::new(0);
static R5: Resource<i32, C1> = Resource::new(0);
static R6: Resource<i32, C2> = Resource::new(0);
fn j1(prio: P2) {
let ceil = prio.as_ceiling();
rtfm::raise_to(ceil, &R1, |ceil| {
// CAN borrow a resource with ceiling C when the current ceiling SC > C
let r2 = R2.borrow(&prio, ceil);
// CAN borrow a resource with ceiling C when the current ceiling SC == C
let r3 = R3.borrow(&prio, ceil);
// CAN'T borrow a resource with ceiling C when the current ceiling SC < C
let r4 = R4.borrow(&prio, ceil);
//~^ error
// CAN'T borrow a resource with ceiling C < P (task priority)
let r5 = R5.borrow(&prio, ceil);
//~^ error
// CAN borrow a resource with ceiling C == P (task priority)
let r6 = R6.borrow(&prio, ceil);
});
}
|
