RtlLeftChild - NtDoc

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

#define RtlLeftChild(Links) ((PRTL_SPLAY_LINKS)(Links)->LeftChild)

#endif

View code on GitHub
// ntddk.h

void RtlLeftChild(
  [in] Links
);
View the official Windows Driver Kit DDI reference

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This macro is documented in Windows Driver Kit.

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

RtlLeftChild macro

Description

The RtlLeftChild routine returns a pointer to the left child of the specified splay link node.

Parameters

Pointer to the node whose left child is to be returned. The node must have been initialized by calling RtlInitializeSplayLinks.

Remarks

RtlLeftChild returns a pointer to the left child of the node at Links, or it returns NULL if the specified node has no left child.

RtlLeftChild can be called repeatedly in conjunction with RtlParent and RtlRightChild to walk a splay link tree.

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

See also

RtlInitializeSplayLinks

RtlInsertAsLeftChild

RtlParent

RtlRightChild

View the official Windows Driver Kit DDI reference

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