mirror of
https://github.com/suchmememanyskill/TegraExplorer.git
synced 2024-11-22 20:06:43 +00:00
145 lines
3.5 KiB
C
145 lines
3.5 KiB
C
/**
|
|
* @file lv_ll.c
|
|
* Handle linked lists. The nodes are dynamically allocated by the 'lv_mem' module.
|
|
*/
|
|
|
|
#ifndef LV_LL_H
|
|
#define LV_LL_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/*********************
|
|
* INCLUDES
|
|
*********************/
|
|
#include "lv_mem.h"
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
|
|
/*********************
|
|
* DEFINES
|
|
*********************/
|
|
|
|
/**********************
|
|
* TYPEDEFS
|
|
**********************/
|
|
|
|
/*Dummy type to make handling easier*/
|
|
typedef uint8_t lv_ll_node_t;
|
|
|
|
/*Description of a linked list*/
|
|
typedef struct
|
|
{
|
|
uint32_t n_size;
|
|
lv_ll_node_t* head;
|
|
lv_ll_node_t* tail;
|
|
} lv_ll_t;
|
|
|
|
/**********************
|
|
* GLOBAL PROTOTYPES
|
|
**********************/
|
|
|
|
/**
|
|
* Initialize linked list
|
|
* @param ll_dsc pointer to ll_dsc variable
|
|
* @param node_size the size of 1 node in bytes
|
|
*/
|
|
void lv_ll_init(lv_ll_t * ll_p, uint32_t node_size);
|
|
|
|
/**
|
|
* Add a new head to a linked list
|
|
* @param ll_p pointer to linked list
|
|
* @return pointer to the new head
|
|
*/
|
|
void * lv_ll_ins_head(lv_ll_t * ll_p);
|
|
|
|
/**
|
|
* Insert a new node in front of the n_act node
|
|
* @param ll_p pointer to linked list
|
|
* @param n_act pointer a node
|
|
* @return pointer to the new head
|
|
*/
|
|
void * lv_ll_ins_prev(lv_ll_t * ll_p, void * n_act);
|
|
|
|
/**
|
|
* Add a new tail to a linked list
|
|
* @param ll_p pointer to linked list
|
|
* @return pointer to the new tail
|
|
*/
|
|
void * lv_ll_ins_tail(lv_ll_t * ll_p);
|
|
|
|
/**
|
|
* Remove the node 'node_p' from 'll_p' linked list.
|
|
* It does not free the the memory of node.
|
|
* @param ll_p pointer to the linked list of 'node_p'
|
|
* @param node_p pointer to node in 'll_p' linked list
|
|
*/
|
|
void lv_ll_rem(lv_ll_t * ll_p, void * node_p);
|
|
|
|
/**
|
|
* Remove and free all elements from a linked list. The list remain valid but become empty.
|
|
* @param ll_p pointer to linked list
|
|
*/
|
|
void lv_ll_clear(lv_ll_t * ll_p);
|
|
|
|
/**
|
|
* Move a node to a new linked list
|
|
* @param ll_ori_p pointer to the original (old) linked list
|
|
* @param ll_new_p pointer to the new linked list
|
|
* @param node pointer to a node
|
|
*/
|
|
void lv_ll_chg_list(lv_ll_t * ll_ori_p, lv_ll_t * ll_new_p, void * node);
|
|
|
|
/**
|
|
* Return with head node of the linked list
|
|
* @param ll_p pointer to linked list
|
|
* @return pointer to the head of 'll_p'
|
|
*/
|
|
void * lv_ll_get_head(const lv_ll_t * ll_p);
|
|
|
|
/**
|
|
* Return with tail node of the linked list
|
|
* @param ll_p pointer to linked list
|
|
* @return pointer to the head of 'll_p'
|
|
*/
|
|
void * lv_ll_get_tail(const lv_ll_t * ll_p);
|
|
|
|
/**
|
|
* Return with the pointer of the next node after 'n_act'
|
|
* @param ll_p pointer to linked list
|
|
* @param n_act pointer a node
|
|
* @return pointer to the next node
|
|
*/
|
|
void * lv_ll_get_next(const lv_ll_t * ll_p, const void * n_act);
|
|
|
|
/**
|
|
* Return with the pointer of the previous node after 'n_act'
|
|
* @param ll_p pointer to linked list
|
|
* @param n_act pointer a node
|
|
* @return pointer to the previous node
|
|
*/
|
|
void * lv_ll_get_prev(const lv_ll_t * ll_p, const void * n_act);
|
|
|
|
/**
|
|
* Move a nodw before an other node in the same linked list
|
|
* @param ll_p pointer to a linked list
|
|
* @param n_act pointer to node to move
|
|
* @param n_after pointer to a node which should be after `n_act`
|
|
*/
|
|
void lv_ll_move_before(lv_ll_t * ll_p, void * n_act, void * n_after);
|
|
|
|
/**********************
|
|
* MACROS
|
|
**********************/
|
|
|
|
#define LL_READ(list, i) for(i = lv_ll_get_head(&list); i != NULL; i = lv_ll_get_next(&list, i))
|
|
|
|
#define LL_READ_BACK(list, i) for(i = lv_ll_get_tail(&list); i != NULL; i = lv_ll_get_prev(&list, i))
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif
|