dlist.h File Reference

#include <stddef.h>
#include <stdbool.h>

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Macros
#define	SYS_DLIST_FOR_EACH_NODE(__dl, __dn)
	Provide the primitive to iterate on a list Note: the loop is unsafe and thus __dn should not be removed.
#define	SYS_DLIST_ITERATE_FROM_NODE(__dl, __dn)
	Provide the primitive to iterate on a list, from a node in the list Note: the loop is unsafe and thus __dn should not be removed.
#define	SYS_DLIST_FOR_EACH_NODE_SAFE(__dl, __dn, __dns)
	Provide the primitive to safely iterate on a list Note: __dn can be removed, it will not break the loop.
#define	SYS_DLIST_CONTAINER(__dn, __cn, __n)    (((__dn) != NULL) ? CONTAINER_OF(__dn, __typeof__(*(__cn)), __n) : NULL)
	Provide the primitive to resolve the container of a list node Note: it is safe to use with NULL pointer nodes.
#define	SYS_DLIST_PEEK_HEAD_CONTAINER(__dl, __cn, __n)    SYS_DLIST_CONTAINER(sys_dlist_peek_head(__dl), __cn, __n)
	Provide the primitive to peek container of the list head.
#define	SYS_DLIST_PEEK_NEXT_CONTAINER(__dl, __cn, __n)
	Provide the primitive to peek the next container.
#define	SYS_DLIST_FOR_EACH_CONTAINER(__dl, __cn, __n)
	Provide the primitive to iterate on a list under a container Note: the loop is unsafe and thus __cn should not be detached.
#define	SYS_DLIST_FOR_EACH_CONTAINER_SAFE(__dl, __cn, __cns, __n)
	Provide the primitive to safely iterate on a list under a container Note: __cn can be detached, it will not break the loop.
#define	SYS_DLIST_STATIC_INIT(ptr_to_list)   { {(ptr_to_list)}, {(ptr_to_list)} }
	Static initializer for a doubly-linked list.

Typedefs
typedef struct _dnode	sys_dlist_t
	Doubly-linked list structure.
typedef struct _dnode	sys_dnode_t
	Doubly-linked list node structure.

Functions
static void	sys_dlist_init (sys_dlist_t *list)
	initialize list to its empty state
static void	sys_dnode_init (sys_dnode_t *node)
	initialize node to its state when not in a list
static bool	sys_dnode_is_linked (const sys_dnode_t *node)
	check if a node is a member of any list
static bool	sys_dlist_is_head (const sys_dlist_t *list, const sys_dnode_t *node)
	check if a node is the list's head
static bool	sys_dlist_is_tail (const sys_dlist_t *list, const sys_dnode_t *node)
	check if a node is the list's tail
static bool	sys_dlist_is_empty (const sys_dlist_t *list)
	check if the list is empty
static bool	sys_dlist_has_multiple_nodes (const sys_dlist_t *list)
	check if more than one node present
static sys_dnode_t *	sys_dlist_peek_head (const sys_dlist_t *list)
	get a reference to the head item in the list
static sys_dnode_t *	sys_dlist_peek_head_not_empty (const sys_dlist_t *list)
	get a reference to the head item in the list
static sys_dnode_t *	sys_dlist_peek_next_no_check (const sys_dlist_t *list, const sys_dnode_t *node)
	get a reference to the next item in the list, node is not NULL
static sys_dnode_t *	sys_dlist_peek_next (const sys_dlist_t *list, const sys_dnode_t *node)
	get a reference to the next item in the list
static sys_dnode_t *	sys_dlist_peek_prev_no_check (const sys_dlist_t *list, const sys_dnode_t *node)
	get a reference to the previous item in the list, node is not NULL
static sys_dnode_t *	sys_dlist_peek_prev (const sys_dlist_t *list, const sys_dnode_t *node)
	get a reference to the previous item in the list
static sys_dnode_t *	sys_dlist_peek_tail (const sys_dlist_t *list)
	get a reference to the tail item in the list
static void	sys_dlist_append (sys_dlist_t *list, sys_dnode_t *node)
	add node to tail of list
static void	sys_dlist_prepend (sys_dlist_t *list, sys_dnode_t *node)
	add node to head of list
static void	sys_dlist_insert (sys_dnode_t *successor, sys_dnode_t *node)
	Insert a node into a list.
static void	sys_dlist_insert_at (sys_dlist_t *list, sys_dnode_t *node, int(*cond)(sys_dnode_t *node, void *data), void *data)
	insert node at position
static void	sys_dlist_dequeue (sys_dnode_t *node)
	remove a specific node from a list
static void	sys_dlist_remove (sys_dnode_t *node)
	remove a specific node from a list
static sys_dnode_t *	sys_dlist_get (sys_dlist_t *list)
	get the first node in a list
static size_t	sys_dlist_len (const sys_dlist_t *list)
	Compute the size of the given list in O(n) time.