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42 lines
964 B
42 lines
964 B
4 months ago
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struct list_head {
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struct list_head *next;
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};
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#define LIST_HEAD(name) \
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struct list_head name = { &(name) }
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static inline int list_empty(const struct list_head *head)
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{
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return head->next == head;
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}
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static inline void list_add(struct list_head *new, struct list_head *head)
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{
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new->next = head->next;
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head->next = new;
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}
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static inline void list_del(struct list_head *entry, struct list_head *prev)
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{
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prev->next = entry->next;
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entry->next = entry;
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}
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#define list_for_each_safe(pos, n, head) \
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for (n = (head), pos = (head)->next; pos != (head); \
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n = pos, pos = n->next)
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#undef offsetof
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#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
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#define container_of(ptr, type, member) ({ \
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const __typeof__( ((type *)0)->member ) *__mptr = (ptr);\
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(type *)( (char *)__mptr - offsetof(type,member) );})
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#ifdef DEBUG
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#define pynl_dbg(fmt, ...) \
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fprintf(stderr, "%s: " fmt, __func__, __VA_ARGS__)
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#else
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#define pynl_dbg(fmt, ...)
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#endif
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