Data Structures
struct	le_dls_Link_t

struct	le_dls_List_t

Macros
#define	LE_DLS_LIST_DECL_INIT {NULL}

#define	LE_DLS_LIST_INIT (le_dls_List_t)LE_DLS_LIST_DECL_INIT

#define	LE_DLS_LINK_INIT (le_dls_Link_t){NULL, NULL}

#define	LE_DLS_FOREACH(listPtr, iteratorPtr, type, member)

Typedefs
typedef bool(*	le_dls_LessThanFunc_t) (le_dls_Link_t a, le_dls_Link_t b)

Functions
void	le_dls_Stack (le_dls_List_t listPtr, le_dls_Link_t newLinkPtr)

void	le_dls_Queue (le_dls_List_t listPtr, le_dls_Link_t newLinkPtr)

void	le_dls_AddAfter (le_dls_List_t listPtr, le_dls_Link_t currentLinkPtr, le_dls_Link_t *newLinkPtr)

void	le_dls_AddBefore (le_dls_List_t listPtr, le_dls_Link_t currentLinkPtr, le_dls_Link_t *newLinkPtr)

le_dls_Link_t *	le_dls_Pop (le_dls_List_t *listPtr)

le_dls_Link_t *	le_dls_PopTail (le_dls_List_t *listPtr)

void	le_dls_Remove (le_dls_List_t listPtr, le_dls_Link_t linkToRemovePtr)

le_dls_Link_t *	le_dls_Peek (const le_dls_List_t *listPtr)

le_dls_Link_t *	le_dls_PeekTail (const le_dls_List_t *listPtr)

LE_DECLARE_INLINE bool	le_dls_IsEmpty (const le_dls_List_t *listPtr)

le_dls_Link_t *	le_dls_PeekNext (const le_dls_List_t listPtr, const le_dls_Link_t currentLinkPtr)

le_dls_Link_t *	le_dls_PeekPrev (const le_dls_List_t listPtr, const le_dls_Link_t currentLinkPtr)

void	le_dls_Swap (le_dls_List_t listPtr, le_dls_Link_t linkPtr, le_dls_Link_t *otherLinkPtr)

void	le_dls_Sort (le_dls_List_t *listPtr, le_dls_LessThanFunc_t comparatorPtr)

bool	le_dls_IsInList (const le_dls_List_t listPtr, const le_dls_Link_t linkPtr)

LE_DECLARE_INLINE bool	le_dls_IsHead (const le_dls_List_t listPtr, const le_dls_Link_t linkPtr)

LE_DECLARE_INLINE bool	le_dls_IsTail (const le_dls_List_t listPtr, const le_dls_Link_t linkPtr)

size_t	le_dls_NumLinks (const le_dls_List_t *listPtr)

bool	le_dls_IsListCorrupted (const le_dls_List_t *listPtr)

Detailed Description

Legato Doubly Linked List API include file.

Copyright (C) Sierra Wireless Inc.

Macro Definition Documentation

◆ LE_DLS_FOREACH

#define LE_DLS_FOREACH	(	listPtr,
		iteratorPtr,
		type,
		member
	)

Value:

for ((iteratorPtr) = CONTAINER_OF(le_dls_Peek(listPtr), type, member); \
         &((iteratorPtr)->member);                                      \
         (iteratorPtr) = CONTAINER_OF(le_dls_PeekNext((listPtr),&((iteratorPtr)->member)), \
                                      type, member))
le_dls_PeekNext
le_dls_Link_t * le_dls_PeekNext(const le_dls_List_t *listPtr, const le_dls_Link_t *currentLinkPtr)
CONTAINER_OF
#define CONTAINER_OF(memberPtr, type, member)
Definition: le_basics.h:122
le_dls_Peek
le_dls_Link_t * le_dls_Peek(const le_dls_List_t *listPtr)

Simple iteration through a doubly linked list

◆ LE_DLS_LINK_INIT

#define LE_DLS_LINK_INIT (le_dls_Link_t){NULL, NULL}

When a link is created it must be initialized by assigning this macro to the link before it can be used.

◆ LE_DLS_LIST_DECL_INIT

#define LE_DLS_LIST_DECL_INIT {NULL}

When a list is created it must be initialized to this macro in the declaration, or have LE_DLS_LIST_INIT assigned to it, before being used

◆ LE_DLS_LIST_INIT

#define LE_DLS_LIST_INIT (le_dls_List_t)LE_DLS_LIST_DECL_INIT

When a list is created it must be initialized by assigning this macro to the list, or initializing to LE_DLS_LIST_DECL_INIT in the declaration, before the list can be used.

Typedef Documentation

◆ le_dls_LessThanFunc_t

typedef bool(* le_dls_LessThanFunc_t) (le_dls_Link_t *a, le_dls_Link_t *b)

This is a comparator function for sorting a list.

This must return true if a goes before b in the list.

Function Documentation

◆ le_dls_AddAfter()

void le_dls_AddAfter	(	le_dls_List_t *	listPtr,
		le_dls_Link_t *	currentLinkPtr,
		le_dls_Link_t *	newLinkPtr
	)

Adds a link after currentLinkPtr. User must ensure that currentLinkPtr is in the list otherwise the behaviour of this function is undefined.

Parameters

[in]	listPtr	List to add to.
[in]	currentLinkPtr	New link will be inserted after this link.
[in]	newLinkPtr	New link to add.

◆ le_dls_AddBefore()

void le_dls_AddBefore	(	le_dls_List_t *	listPtr,
		le_dls_Link_t *	currentLinkPtr,
		le_dls_Link_t *	newLinkPtr
	)

Adds a link after currentLinkPtr. User must ensure that currentLinkPtr is in the list otherwise the behaviour of this function is undefined.

Parameters

[in]	listPtr	List to add to.
[in]	currentLinkPtr	New link will be inserted before this link.
[in]	newLinkPtr	New link to add.

◆ le_dls_IsEmpty()

LE_DECLARE_INLINE bool le_dls_IsEmpty ( const le_dls_List_t * listPtr )

Checks if a list is empty.

Returns: true if empty, false if not empty.

Parameters

[in] listPtr The list.

◆ le_dls_IsHead()

LE_DECLARE_INLINE bool le_dls_IsHead	(	const le_dls_List_t *	listPtr,
		const le_dls_Link_t *	linkPtr
	)

Checks if a link is at the head of the list (next to be popped).

Returns

true if the link is at the head of the list.
false if not.

Parameters

[in]	listPtr	List to check.
[in]	linkPtr	Check if this link is at the head of the list.

◆ le_dls_IsInList()

bool le_dls_IsInList	(	const le_dls_List_t *	listPtr,
		const le_dls_Link_t *	linkPtr
	)

Checks if a link is in the list.

Returns: true if the link is in the list. false if the link is not in the list.

Parameters

[in]	listPtr	List to check.
[in]	linkPtr	Check if this link is in the list.

◆ le_dls_IsListCorrupted()

bool le_dls_IsListCorrupted ( const le_dls_List_t * listPtr )

Checks if the list is corrupted.

Returns: true if the list is corrupted. false if the list is not corrupted.

Parameters

[in] listPtr List to check.

◆ le_dls_IsTail()

LE_DECLARE_INLINE bool le_dls_IsTail	(	const le_dls_List_t *	listPtr,
		const le_dls_Link_t *	linkPtr
	)

Checks if a link is at the tail of the list (last to be popped).

Returns

true if the link is at the tail of the list.
false if not.

Parameters

[in]	listPtr	List to check.
[in]	linkPtr	Check if this link is at the tail of the list.

◆ le_dls_NumLinks()

size_t le_dls_NumLinks ( const le_dls_List_t * listPtr )

Returns the number of links in a list.

Returns: Number of links.

Parameters

[in] listPtr List to count.

◆ le_dls_Peek()

le_dls_Link_t* le_dls_Peek ( const le_dls_List_t * listPtr )

Returns the link at the head of the list without removing it from the list.

Returns: Pointer to the head link if successful. NULL if the list is empty.

Parameters

[in] listPtr The list.

◆ le_dls_PeekNext()

le_dls_Link_t* le_dls_PeekNext	(	const le_dls_List_t *	listPtr,
		const le_dls_Link_t *	currentLinkPtr
	)

Returns the link next to currentLinkPtr (i.e., the link beside currentLinkPtr that is closer to the tail) without removing it from the list. User must ensure that currentLinkPtr is in the list otherwise the behaviour of this function is undefined.

Returns: Pointer to the next link if successful. NULL if there is no link next to the currentLinkPtr (currentLinkPtr is at the tail of the list).

Parameters

[in]	listPtr	List containing currentLinkPtr.
[in]	currentLinkPtr	Get the link that is relative to this link.

◆ le_dls_PeekPrev()

le_dls_Link_t* le_dls_PeekPrev	(	const le_dls_List_t *	listPtr,
		const le_dls_Link_t *	currentLinkPtr
	)

Returns the link previous to currentLinkPtr without removing it from the list. User must ensure that currentLinkPtr is in the list otherwise the behaviour of this function is undefined.

Returns: Pointer to the previous link if successful. NULL if there is no link previous to the currentLinkPtr (currentLinkPtr is at the head of the list).

Parameters

[in]	listPtr	List containing currentLinkPtr.
[in]	currentLinkPtr	Get the link that is relative to this link.

◆ le_dls_PeekTail()

le_dls_Link_t* le_dls_PeekTail ( const le_dls_List_t * listPtr )

Returns the link at the tail of the list without removing it from the list.

Returns: A pointer to the tail link if successful. NULL if the list is empty.

Parameters

[in] listPtr The list.

◆ le_dls_Pop()

le_dls_Link_t* le_dls_Pop ( le_dls_List_t * listPtr )

Removes and returns the link at the head of the list.

Returns: Removed link. NULL if the link is not available because the list is empty.

Parameters

[in] listPtr List to remove from.

◆ le_dls_PopTail()

le_dls_Link_t* le_dls_PopTail ( le_dls_List_t * listPtr )

Removes and returns the link at the tail of the list.

Returns: The removed link. NULL if the link is not available because the list is empty.

Parameters

[in] listPtr List to remove from.

◆ le_dls_Queue()

void le_dls_Queue	(	le_dls_List_t *	listPtr,
		le_dls_Link_t *	newLinkPtr
	)

Adds a link to the tail of the list.

Parameters

[in]	listPtr	List to add to.
[in]	newLinkPtr	New link to add.

◆ le_dls_Remove()

void le_dls_Remove	(	le_dls_List_t *	listPtr,
		le_dls_Link_t *	linkToRemovePtr
	)

Removes the specified link from the list. Ensure the link is in the list otherwise the behaviour of this function is undefined.

Parameters

[in]	listPtr	List to remove from.
[in]	linkToRemovePtr	Link to remove.

◆ le_dls_Sort()

void le_dls_Sort	(	le_dls_List_t *	listPtr,
		le_dls_LessThanFunc_t	comparatorPtr
	)

Sort a list in ascending order.

Parameters

[in]	listPtr	List to sort
[in]	comparatorPtr	Comparator function for sorting

◆ le_dls_Stack()

void le_dls_Stack	(	le_dls_List_t *	listPtr,
		le_dls_Link_t *	newLinkPtr
	)

Adds a link at the head of the list.

Parameters

[in]	listPtr	List to add to.
[in]	newLinkPtr	New link to add.

◆ le_dls_Swap()

void le_dls_Swap	(	le_dls_List_t *	listPtr,
		le_dls_Link_t *	linkPtr,
		le_dls_Link_t *	otherLinkPtr
	)

Swaps the position of two links in the list. User must ensure that both links are in the list otherwise the behaviour of this function is undefined.

Parameters

[in]	listPtr	List containing the links to swap.
[in]	linkPtr	One of the two link pointers to swap.
[in]	otherLinkPtr	Other link pointer to swap.

/ Reference

le_doublyLinkedList.h File Reference

Data Structures

Macros

Typedefs

Functions

Detailed Description

Macro Definition Documentation

◆ LE_DLS_FOREACH

◆ LE_DLS_LINK_INIT

◆ LE_DLS_LIST_DECL_INIT

◆ LE_DLS_LIST_INIT

Typedef Documentation

◆ le_dls_LessThanFunc_t

Function Documentation

◆ le_dls_AddAfter()

◆ le_dls_AddBefore()

◆ le_dls_IsEmpty()

◆ le_dls_IsHead()

◆ le_dls_IsInList()

◆ le_dls_IsListCorrupted()

◆ le_dls_IsTail()

◆ le_dls_NumLinks()

◆ le_dls_Peek()

◆ le_dls_PeekNext()

◆ le_dls_PeekPrev()

◆ le_dls_PeekTail()

◆ le_dls_Pop()

◆ le_dls_PopTail()

◆ le_dls_Queue()

◆ le_dls_Remove()

◆ le_dls_Sort()

◆ le_dls_Stack()

◆ le_dls_Swap()