[riot-notifications] [RIOT-OS/RIOT] core/mutex: Add mutex_cancel (#15442)
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Tue Nov 17 11:23:00 CET 2020
@maribu commented on this pull request.
> @@ -33,21 +33,20 @@
#define ENABLE_DEBUG 0
-int mutex_lock(mutex_t *mutex)
+ * @brief Block waiting for a locked mutex
+ * @pre IRQs are disabled
Wait, this is right. I just saw the `mutex_lock` and misread as if I added this to `mutex_lock()` somehow.
And `irq_state` is need in case someone does stuff like:
unsigned state = irq_disable();
I don't this that there is a valid use case for the above code. But IMO we shouldn't judge what application developers implement. And if they want to do stupid stuff, the should certainly be able to do stupid stuff in a safe manner.
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