StorPortQueryDepthSList - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// storport.h

ULONG StorPortQueryDepthSList(
  [in]      PVOID              HwDeviceExtension,
  [in, out] PSTOR_SLIST_HEADER SListHead,
  [out]     PSHORT             Result
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-storport-storportquerydepthslist)

StorPortQueryDepthSList function

Description

Retrieves the number of entries in a Storport managed singly linked list.

Parameters

HwDeviceExtension [in]

A pointer to the hardware device extension for the host bus adapter (HBA).

SListHead [in, out]

A pointer to an STOR_SLIST_HEADER structure that represents the head of a singly linked list. This structure is considered opaque and is for use by the Storport driver only.

Result [out]

A pointer to a SHORT value which receives the list depth count.

Return value

StorPortQueryDepthSList returns one of the following status codes:

Return code Description
STOR_STATUS_NOT_IMPLEMENTED This function is not implemented on the active operating system.
STOR_STATUS_SUCCESS The list depth was successfully returned.
STOR_STATUS_INVALID_PARAMETER A pointer in SListHead or Result is NULL.

Remarks

Since StorPortQueryDepthSList is not interlocked, the list depth value pointed to by Result on return is not reliable in when multiple threads are operating on the list.

See also

StorPortInitializeSListHead

StorPortInterlockedFlushSList

StorPortInterlockedPopEntrySList

StorPortInterlockedPushEntrySList

View the official Windows Driver Kit DDI reference

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