legato_list.h File Reference

A linked list implementation. More...

#include "gfx/legato/common/legato_common.h"

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Data Structures
struct	leListNode
	This struct represents a list node . More...
struct	leList
	This struct represents a list. More...

Typedefs
typedef struct leListNode	leListNode
	This struct represents a list node . More...
typedef struct leList	leList
	This struct represents a list. More...

Functions
int32_t	leList_Create (leList *list)
	Create a new list. More...
int32_t	leList_Assign (leList *list, size_t idx, void *val)
	Assignes a new pointer. More...
int32_t	leList_PushFront (leList *list, void *)
	Push value on front. More...
void	leList_PopFront (leList *list)
	Pop value from front. More...
int32_t	leList_PushBack (leList *list, void *val)
	Push value on back. More...
int32_t	leList_PopBack (leList *list)
	Pop value from back. More...
void *	leList_Get (const leList *list, uint32_t idx)
	Get a value from the list. More...
int32_t	leList_Find (const leList *list, void *val)
	Find index of a value. More...
int32_t	leList_InsertAt (leList *list, void *val, uint32_t idx)
	Insert value at index. More...
int32_t	leList_Remove (leList *list, void *val)
	Remove item. More...
int32_t	leList_RemoveAt (leList *list, uint32_t idx)
	Remove item at index. More...
int32_t	leList_Copy (leList *l, leList *r)
	Copy list. More...
void	leList_Clear (leList *list)
	Clear array. More...
void	leList_Destroy (leList *list)
	Remove array. More...

Detailed Description

A linked list implementation.

This is a linked list implementation that is used internally by the Legato user interface library.

Typedef Documentation

leList

typedef struct leList leList

This struct represents a list.

List is used use to hold a size limit of list nodes.

leListNode

typedef struct leListNode leListNode

This struct represents a list node .

List node is used to hold a list of items.

Function Documentation

leList_Assign()

int32_t leList_Assign	(	leList *	list,
		size_t	idx,
		void *	val
	)

Assignes a new pointer.

Assigns val at the specified index for the specified list.

leList* list;
size_t idx;
void* val;
int32_t res = leList_Assign(list, idx, val);

Parameters

list	is the array to modify.
idx	is the location to update.
val	is the value to assign.

Returns

0 if success, -1 if failure.

leList_Clear()

void leList_Clear

(

leList *

list

)

Clear array.

Removes all values from list. The array capacity remains the same.

leList* list;
leList_Clear(list);

Parameters

list	the list to modify.

Returns

void.

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leList_Copy()

int32_t leList_Copy	(	leList *	l,
		leList *	r
	)

Copy list.

Copies the contents of l to the array pointed to by r.

leList* l;
leList* r;
int32_t index = leList_Copy(l, r);

Parameters

l	the source list.
r	the result list.

Returns

0 if success, -1 if failure.

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leList_Create()

int32_t leList_Create

(

leList *

list

)

Create a new list.

Creates a new list using list.

leArray* list;
int32_t res = leList_Create(list)

Parameters

Pointer

to the list to create.

Returns

0 if success, -1 if failure.

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leList_Destroy()

void leList_Destroy

(

leList *

list

)

Remove array.

Removes all values from list. The function frees the data of each node.

leList* list;
leList_Destroy(list);

Parameters

list	the list to modify.

Returns

void.

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leList_Find()

int32_t leList_Find	(	const leList *	list,
		void *	val
	)

Find index of a value.

Finds the index of val from list. All existing values from index are shifted right one place.

leList* list;
void* val;
int32_t index = leList_Get(list, val);

Parameters

pointer	to the list to reference.
the	value to search for.

Returns

the index of the value searched for.

leList_Get()

void* leList_Get	(	const leList *	list,
		uint32_t	idx
	)

Get a value from the list.

Gets val from list at the specified idx. All existing values from index are shifted right one place.

leList* list;
void* value = leList_Get(list);

Parameters

pointer	to the list to reference.
the	index of the value to retrieve.

Returns

pointer to the retrieved value.

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leList_InsertAt()

int32_t leList_InsertAt	(	leList *	list,
		void *	val,
		uint32_t	idx
	)

Insert value at index.

Inserts val into list at the specified idx. All existing values from index are shifted right one place.

leList* list;
void* val;
uint32_t idx;
int32_t res = leList_InsertAt(list, val, idx);

Parameters

list	is the array to modify.
val	is value to insert.
idx	is the location at which to insert.

Returns

0 if success, -1 if failure.

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leList_PopBack()

int32_t leList_PopBack

(

leList *

list

)

Pop value from back.

Pops a value from the back list. This is the last value from the list. of the array pointed to by list.

leList* list;
int32_t val = leList_PopBack(list);

Parameters

list	is the array to modify.

Returns

last value.

leList_PopFront()

void leList_PopFront

(

leList *

list

)

Pop value from front.

Removes the first value from the front of list. This function shuffles all other values forward one index.

leList* list;
leList_PopFront(list);

Parameters

list	is the array to modify.

Returns

void.

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leList_PushBack()

int32_t leList_PushBack	(	leList *	list,
		void *	val
	)

Push value on back.

Pushes val onto the back of list.

leList* list;
void* val;
int32_t res = leList_PushBack(list, val);

Parameters

list	is the array to modify.
val	is the value to push.

Returns

0 if success, -1 if failure.

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leList_PushFront()

int32_t leList_PushFront	(	leList *	list,
		void *
	)

Push value on front.

Pushes val onto the front of the specified list. This function shuffles all other values backward one index.

leList* list;
void* val;
int32_t res = leList_Create(list, idx, val);

Parameters

list	is the array to modify.
val	is the value to push.

Returns

0 if success, -1 if failure.

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leList_Remove()

int32_t leList_Remove	(	leList *	list,
		void *	val
	)

Remove item.

Removes the first instance of val from list. The function shuffles all values left to fill the gap.

leList* list;
void* val;
int32_t index = leList_Remove(list, val);

Parameters

list	is the array to modify.
val	is the value removed.

Returns

0 if success, -1 if failure.

leList_RemoveAt()

int32_t leList_RemoveAt	(	leList *	list,
		uint32_t	idx
	)

Remove item at index.

Removes an item from list at the specified idx.

leList* list;
uint32_t idx;
int32_t res = leList_Remove(list, idx);

Parameters

list	is the array to modify.
idx	is the location at which to remove.

Returns

0 if success, -1 if failure.