RtlRealPredecessor - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
#ifndef _NTRTL_H

_Check_return_
NTSYSAPI
PRTL_SPLAY_LINKS
NTAPI
RtlRealPredecessor(
    _In_ PRTL_SPLAY_LINKS Links
    );

#endif

View code on GitHub
// ntddk.h

NTSYSAPI PRTL_SPLAY_LINKS RtlRealPredecessor(
  [in] PRTL_SPLAY_LINKS Links
);
View the official Windows Driver Kit DDI reference

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This function is documented in Windows Driver Kit.

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Windows Driver Kit DDI reference (nf-ntddk-rtlrealpredecessor)

RtlRealPredecessor function

Description

The RtlRealPredecessor routine returns a pointer to the predecessor of the specified node in the splay link tree.

Parameters

Pointer to the node. The node must have been initialized by calling RtlInitializeSplayLinks.

Return value

RtlRealPredecessor returns a pointer to the predecessor of the node at Links, or NULL if the node has no predecessor.

Remarks

The predecessor of a given node is determined as follows:

Callers of the Rtl splay link routines are responsible for synchronizing access to the splay link tree. A fast mutex is the most efficient synchronization mechanism to use for this purpose.

Callers of RtlRealPredecessor must be running at IRQL <= DISPATCH_LEVEL if the tree is nonpaged. Usually, callers are running at IRQL PASSIVE_LEVEL.

See also

RtlRealSuccessor

RtlSplay

RtlSubtreePredecessor

View the official Windows Driver Kit DDI reference

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