mirror/rtic
1
0
Fork 0
mirror of https://github.com/rtic-rs/rtic.git synced 2024-11-25 21:19:35 +01:00
Code Issues Projects Releases Packages Wiki Activity

Merge #411

Browse source 
411: Add section about task_local and lock_free r=perlindgren a=AfoHT



Co-authored-by: Henrik Tjäder <henrik@tjaders.com>
This commit is contained in:
bors[bot] 2020-11-12 18:34:05 +00:00 committed by GitHub
commit ebfabd7b30
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
book/en/src/by-example/resources.md
View file

@ -102,3 +102,15 @@ In the example below a key (e.g. a cryptographic key) is loaded (or created) at
$ cargo run --example only-shared-access
{{#include ../../../../ci/expected/only-shared-access.run}}
```
## Lock-free resource access of mutable resources
There exists two other options dealing with resources
* `#[lock_free]`: there might be several tasks with the same priority
accessing the resource without critical section. Since tasks with the
same priority never can preempt another task on the same priority
this is safe.
* `#[task_local]`: there must be only one task using this resource,
similar to a `static mut` task local resource, but (optionally) set-up by init.