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31 lines
1 KiB
Rust
31 lines
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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R1.lock(&prio, |r1, c3| {
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// CAN borrow a resource with ceiling C when the system ceiling SC > C
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let r2 = R2.borrow(&prio, &c3);
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// CAN borrow a resource with ceiling C when the system ceiling SC == C
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let r3 = R3.borrow(&prio, &c3);
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// CAN'T borrow a resource with ceiling C when the system ceiling SC < C
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let r4 = R4.borrow(&prio, &c3);
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//~^ error
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// CAN'T borrow a resource with ceiling C < P (task priority)
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let r5 = R5.borrow(&prio, &c3);
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//~^ error
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// CAN borrow a resource with ceiling C == P (task priority)
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let r6 = R6.borrow(&prio, &c3);
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});
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}
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