// add new list node to list head
static inline void list_add_head(PT_LIST_LINKNODE ptListHead, PT_LIST_LINKNODE ptListNewLink)
{
PT_LIST_LINKNODE ptPrevLink = ptListHead;
PT_LIST_LINKNODE ptNextLink = ptListHead->next;
_list_add(ptListNewLink, ptPrevLink, ptNextLink);
}
// add new list node to list tail
static inline void list_add_tail(PT_LIST_LINKNODE ptListHead, PT_LIST_LINKNODE ptListNewLink)
{
PT_LIST_LINKNODE ptPrevLink = ptListHead->prev;
PT_LIST_LINKNODE ptNextLink = ptListHead;
_list_add(ptListNewLink, ptPrevLink, ptNextLink);
}
struct int_list *radix_sort(struct int_list *arr)
{
int i,j, pos = 10;
struct int_list *head, *next_element, *digits[10];
for(i = 0; i < 10; i++)
{
digits[i] = NULL;
}
for(j = 0; j < 10; j++)
{
/* Group Phase */
for(i = 0; i < ARR_SIZE; i++)
{
next_element = list_entry(arr->list.next, struct int_list, list);
if(digits[(arr->val % pos) / (pos / 10)] == NULL)
{
digits[(arr->val % pos) / (pos / 10)] = arr;
_list_del(arr);
_list_add(arr, arr, arr);
}
else
{
_list_del(arr);
_list_add(arr, list_entry(digits[(arr->val % pos) / (pos / 10)]->list.prev, struct int_list, list), digits[(arr->val % pos) / (pos / 10)]);
}
arr = next_element;
}
/* Merge phase */
head = arr = NULL;
for(i = 0; i < 10; i++)
{
if(digits[i] != NULL)
{
if(head == NULL)
head = digits[i];
if(arr != NULL)
{
struct list_head *ap = arr->list.prev;
arr->list.prev->next = &digits[i]->list; /* a'->next */
arr->list.prev = digits[i]->list.prev; /* a->prev */
digits[i]->list.prev->next = &arr->list; /*d'->next */
digits[i]->list.prev = ap; /*d->prev */
} else {
arr = head; /* This is here because I want to skip the first loop. */
}
digits[i] = NULL;
}
}
pos *= 10;
}
return head;
}
/**
* list_replace - replace node with new_node in a list.
* 替换一个node
*
* @param[in] node old node
* @param[in] new_node new node
*
* @return none
*
* @authors deeve
* @date 2013/10/19
*/
void list_replace(struct list_head *node, struct list_head *new_node)
{
struct list_head *next, *prev;
if (node && new_node) {
prev = node->prev;
next = node->next;
_list_add(new_node, prev, next);
}
}
/**
* list_replace - replace node with new_node in a list, and reinitialize node.
* 替换一个node,并且取消old node的链接关系
*
* @param[in] node old node
* @param[in] new_node new node
*
* @return none
*
* @authors deeve
* @date 2013/10/19
*/
void list_replace_init(struct list_head *node, struct list_head *new_node)
{
struct list_head *next, *prev;
if (node && new_node) {
prev = node->prev;
next = node->next;
_list_add(new_node, prev, next);
INIT_LIST_HEAD(node);
}
}
static void _trash_list(Trash * trash)
{
Config * config;
char * path;
DIR * dir;
struct dirent * de;
time_t sixmonths;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
/* FIXME report errors */
if((path = _trash_get_path(DATA_TRASHINFO)) == NULL)
return;
if((config = config_new()) == NULL)
{
free(path);
return;
}
/* FIXME should try to create the directory */
if((dir = opendir(path)) == NULL)
{
config_delete(config);
free(path);
return;
}
/* FIXME refresh only if necessary */
_list_reset(trash);
sixmonths = time(NULL) - 15552000;
while((de = readdir(dir)) != NULL)
_list_add(trash, config, path, de->d_name, sixmonths);
closedir(dir);
_list_purge(trash);
config_delete(config);
free(path);
}
/* Create an uninitialized element at the specified position */
static inline struct int_list *list_add(struct int_list *prev, struct int_list *next)
{
return _list_add(malloc(sizeof(struct int_list)), prev, next);
}
/**
* list_add_tail - add a new_node entry to the list tail.
* Insert a new_node entry before the specified head
* This is useful for implementing queues
*
* @param[in] new_node entry to be added
* @param[in] head list head to add it before
*
* @return none
*
* @see
* @authors deeve
* @date 2013/10/19
*/
void list_add_tail(struct list_head *new_node, struct list_head *head)
{
_check_head(head);
_list_add(new_node, head->prev, head);
}
/**
* list_add - add a new entry.
* Insert a new_node entry after the specified head
* This is good for implementing stacks
*
* @param[in] new_node entry to be added
* @param[in] head list head to add it after
*
* @return none
*
* @see
* @authors deeve
* @date 2013/10/19
*/
void list_add(struct list_head *new_node, struct list_head *head)
{
_check_head(head);
_list_add(new_node, head, head->next);
}
