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37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
extern crate cortex_m_rtfm as rtfm;
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use rtfm::{C1, C2, C3, C4, C5, P2, Resource};
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static R1: Resource<i32, C4> = Resource::new(0);
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static R2: Resource<i32, C3> = Resource::new(0);
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static R3: Resource<i32, C4> = Resource::new(0);
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static R4: Resource<i32, C5> = Resource::new(0);
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static R5: Resource<i32, C1> = Resource::new(0);
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static R6: Resource<i32, C2> = Resource::new(0);
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fn j1(prio: P2) {
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let ceil = prio.as_ceiling();
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ceil.raise(
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&R1, |ceil| {
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// NOTE SC = System Ceiling, P = task Priority
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// CAN access a resource with ceiling RC when SC > RC
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let r2 = R2.access(&prio, ceil);
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// CAN access a resource with ceiling RC when SC == RC
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let r3 = R3.access(&prio, ceil);
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// CAN'T access a resource with ceiling RC when SC < RC
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let r4 = R4.access(&prio, ceil);
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//~^ error
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// CAN'T access a resource with ceiling RC when RC < P
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let r5 = R5.access(&prio, ceil);
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//~^ error
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// CAN access a resource with ceiling RC when RC == P
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let r6 = R6.access(&prio, ceil);
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}
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);
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}
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