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subhobhai943
cda9735b09
- Implement memory-safe RFC-4648 Base64 encoder and decoder in rust/src/crypto/base64.rs - Add process parent hierarchy tracking (ppid, pgid), task_find_by_pid, task_kill, and task_dump_pstree in kernel/task.c - Add list_for_each_entry macro in include/lib/list.h - Add LazyBox applets: 'base64', 'pstree', 'kill', 'tree', 'find', and 'traceroute'
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
#ifndef _LIB_LIST_H
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#define _LIB_LIST_H
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#include <stddef.h>
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struct list_head {
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struct list_head *next, *prev;
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};
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#define LIST_HEAD_INIT(name) { &(name), &(name) }
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#define LIST_HEAD(name) struct list_head name = LIST_HEAD_INIT(name)
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static inline void INIT_LIST_HEAD(struct list_head *list) {
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list->next = list;
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list->prev = list;
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}
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static inline void __list_add(struct list_head *new_node,
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struct list_head *prev,
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struct list_head *next) {
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next->prev = new_node;
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new_node->next = next;
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new_node->prev = prev;
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prev->next = new_node;
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}
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static inline void list_add(struct list_head *new_node, struct list_head *head) {
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__list_add(new_node, head, head->next);
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}
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static inline void list_add_tail(struct list_head *new_node, struct list_head *head) {
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__list_add(new_node, head->prev, head);
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}
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static inline void list_del(struct list_head *entry) {
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entry->next->prev = entry->prev;
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entry->prev->next = entry->next;
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entry->next = NULL;
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entry->prev = NULL;
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}
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static inline int list_empty(const struct list_head *head) {
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return head->next == head;
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}
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#define list_entry(ptr, type, member) \
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((type *)((char *)(ptr) - offsetof(type, member)))
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#define list_for_each(pos, head) \
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for (pos = (head)->next; pos != (head); pos = pos->next)
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#define list_for_each_safe(pos, n, head) \
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for (pos = (head)->next, n = pos->next; pos != (head); \
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pos = n, n = pos->next)
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#define list_for_each_entry(pos, head, member) \
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for (pos = list_entry((head)->next, typeof(*pos), member); \
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&pos->member != (head); \
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pos = list_entry(pos->member.next, typeof(*pos), member))
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#endif // _LIB_LIST_H
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