FltReleaseContextsEx - NtDoc
Native API online documentation, based on the System Informer
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headers
// fltkernel.h
VOID FLTAPI FltReleaseContextsEx(
[in] SIZE_T ContextsSize,
[in] PFLT_RELATED_CONTEXTS_EX Contexts
);
View the official Windows Driver Kit DDI referenceNo description available.
FltReleaseContextsEx releases each context in a given FLT_RELATED_CONTEXTS_EX structure.
ContextsSize [in]The size, in bytes, of the FLT_RELATED_CONTEXTS_EX structure pointed to by Contexts. Set to sizeof(FLT_RELATED_CONTEXTS_EX).
Contexts [in]Pointer to the FLT_RELATED_CONTEXTS_EX structure.
None
For more information about contexts, see About minifilter contexts.
FltReleaseContextsEx decrements the reference count on all contexts in the FLT_RELATED_CONTEXTS_EX structure and sets all members of the structure to NULL_CONTEXT.
To get the FLT_RELATED_CONTEXTS_EX structure for a given minifilter driver for a given I/O request, call FltGetContextsEx.
For more information about context reference counting, see Referencing Contexts.
Callers of FltReleaseContextsEx must be running at IRQL <= DISPATCH_LEVEL if all contexts were allocated from nonpaged pool. If any contexts were allocated from paged pool, callers must be running at IRQL <= APC_LEVEL.
When each context's reference count reaches zero, the context is freed immediately if the caller is running at IRQL <= APC_LEVEL. If the caller is running at IRQL DISPATCH_LEVEL, a work item is scheduled to free the context.