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diff --git a/book/src/by-example/tips.md b/book/src/by-example/tips.md index 0e3d47b..c163328 100644 --- a/book/src/by-example/tips.md +++ b/book/src/by-example/tips.md @@ -1,5 +1,25 @@ # Tips & tricks +## Generics + +Resources shared between two or more tasks implement the `Mutex` trait in *all* +contexts, even on those where a critical section is not required to access the +data. This lets you easily write generic code that operates on resources and can +be called from different tasks. Here's one such example: + +``` rust +{{#include ../../../examples/generics.rs}} +``` + +``` console +$ cargo run --example generics +{{#include ../../../ci/expected/generics.run}}``` + +This also lets you change the static priorities of tasks without having to +rewrite code. If you consistently use `lock`s to access the data behind shared +resources then your code will continue to compile when you change the priority +of tasks. + ## Running tasks from RAM The main goal of moving the specification of RTFM applications to attributes in |