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Diffstat (limited to 'book')
| -rw-r--r-- | book/en/src/by-example/types-send-sync.md | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/book/en/src/by-example/types-send-sync.md b/book/en/src/by-example/types-send-sync.md index da53cf9..632946b 100644 --- a/book/en/src/by-example/types-send-sync.md +++ b/book/en/src/by-example/types-send-sync.md @@ -39,6 +39,19 @@ 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. + +Sharing a resource with `init` can be used to implement late initialization, see +example below. For that reason, resources shared with `init` must also implement +the `Send` trait. + +``` rust +{{#include ../../../../examples/shared-with-init.rs}} +``` + ## `Sync` Similarly, [`Sync`] is a marker trait for "types for which it is safe to share |