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authorPhilipp Krones <hello@philkrones.com>2022-11-21 20:34:47 +0100
committerPhilipp Krones <hello@philkrones.com>2022-11-21 20:51:52 +0100
commit46c5a5d234f13dcf4bb4cf4241b2addedbf0be14 (patch)
tree56726625e55224ecb09ed11f509a964507b9c333 /src/docs/mutex_integer.txt
parent3597ed5a099488aa77caf444106a0550b7e5d2e8 (diff)
downloadrust-46c5a5d234f13dcf4bb4cf4241b2addedbf0be14.tar.gz
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Merge commit 'f4850f7292efa33759b4f7f9b7621268979e9914' into clippyup
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-### What it does
-Checks for usages of `Mutex<X>` where `X` is an integral
-type.
-
-### Why is this bad?
-Using a mutex just to make access to a plain integer
-sequential is
-shooting flies with cannons. `std::sync::atomic::AtomicUsize` is leaner and faster.
-
-### Known problems
-This lint cannot detect if the mutex is actually used
-for waiting before a critical section.
-
-### Example
-```
-let x = Mutex::new(0usize);
-```
-
-Use instead:
-```
-let x = AtomicUsize::new(0usize);
-```
\ No newline at end of file