update SAL annotations for kernel, addresses #501 #502
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jonwis
reviewed
Jun 1, 2025
| @@ -7021,6 +7024,8 @@ fast_mutex_guard acquire_fast_mutex(FAST_MUTEX* fastMutex) WI_NOEXCEPT | |||
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| WI_NODISCARD | |||
| inline _IRQL_requires_max_(APC_LEVEL) | |||
| _IRQL_raises_(APC_LEVEL) | |||
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ExTryToAcquire... only raises to APC_LEVEL if it acquired the mutex. See https://learn.microsoft.com/en-us/windows-hardware/drivers/devtest/irql-annotations-for-drivers and https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nf-wdm-extrytoacquirefastmutex .. This probably needs a When() in here, like:
_When_(return, _IRQL_raises_(APC_LEVEL) _IRQ_saves_global_(OldIrql, return))Not sure how to have the return peek into the returned object to see if it's active or not.
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