InsertHeadList function (wdm.h)
The InsertHeadList routine inserts an entry at the head of a doubly linked list of LIST_ENTRY structures.
Syntax
void InsertHeadList(
[in, out] PLIST_ENTRY ListHead,
[in, out] __drv_aliasesMem PLIST_ENTRY Entry
);
Parameters
[in, out] ListHead
Pointer to the LIST_ENTRY structure that represents the head of the list.
[in, out] Entry
Pointer to a LIST_ENTRY structure that represents the entry to be inserted into the list.
Return value
None
Remarks
InsertHeadList updates ListHead->Flink to point to Entry. It updates Entry->Flink to point to the old first entry in the list, and sets Entry->Blink to ListHead. The Blink field of the original first entry is also updated to point to Entry.
For information about using this routine when implementing a doubly linked list, see Singly and Doubly Linked Lists.
Callers of InsertHeadList can be running at any IRQL. If InsertHeadList is called at IRQL >= DISPATCH_LEVEL, the storage for ListHead and the list entries must be resident.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 2000. |
| Target Platform | Desktop |
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h, Wudfwdm.h) |
| IRQL | Any level (See Remarks section) |
| DDI compliance rules | IoAllocateFree(wdm), IoReuseIrp(wdm), MarkingQueuedIrps(wdm), RemoveLockCheck(wdm), RemoveLockForward(wdm), RemoveLockForward2(wdm), RemoveLockForwardDeviceControl(wdm), RemoveLockForwardDeviceControl2(wdm), RemoveLockForwardDeviceControlInternal(wdm), RemoveLockForwardDeviceControlInternal2(wdm), RemoveLockForwardRead(wdm), RemoveLockForwardRead2(wdm), RemoveLockForwardWrite(wdm), RemoveLockForwardWrite2(wdm), RemoveLockRelease2(wdm), RemoveLockReleaseCleanup(wdm), RemoveLockReleaseClose(wdm), RemoveLockReleaseCreate(wdm), RemoveLockReleaseDeviceControl(wdm), RemoveLockReleaseInternalDeviceControl(wdm), RemoveLockReleasePower(wdm), RemoveLockReleaseRead(wdm), RemoveLockReleaseShutdown(wdm), RemoveLockReleaseSystemControl(wdm), RemoveLockReleaseWrite(wdm) |