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note that late resources must be Send

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Jorge Aparicio 2019-04-16 16:39:51 +02:00
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book/en/src/by-example/types-send-sync.md
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@ -39,6 +39,11 @@ The example below shows where a type that doesn't implement `Send` can be used.
{{#include ../../../../examples/not-send.rs}}
```
It's important to note that late initialization of resources is effectively a
send operation where the initial value is sent from `idle`, which has the lowest
priority of `0`, to a task with will run with a priority greater than or equal
to `1`. Thus all late resources need to implement the `Send` trait.
## `Sync`
Similarly, [`Sync`] is a marker trait for "types for which it is safe to share