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include: make ngx_queue macros sanitary

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This commit is contained in:
Ben Noordhuis 2012-09-30 23:05:25 +02:00
parent 5e09e1b57e
commit 1020a1a82e
1 changed files with 29 additions and 8 deletions
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37
include/uv-private/ngx-queue.h
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@ -17,8 +17,11 @@ struct ngx_queue_s {
#define ngx_queue_init(q) \
do { \
(q)->prev = q; \
(q)->next = q
(q)->next = q; \
} \
while (0)
#define ngx_queue_empty(h) \
@ -26,20 +29,26 @@ struct ngx_queue_s {
#define ngx_queue_insert_head(h, x) \
do { \
(x)->next = (h)->next; \
(x)->next->prev = x; \
(x)->prev = h; \
(h)->next = x
(h)->next = x; \
} \
while (0)
#define ngx_queue_insert_after ngx_queue_insert_head
#define ngx_queue_insert_tail(h, x) \
do { \
(x)->prev = (h)->prev; \
(x)->prev->next = x; \
(x)->next = h; \
(h)->prev = x
(h)->prev = x; \
} \
while (0)
#define ngx_queue_head(h) \
@ -65,38 +74,50 @@ struct ngx_queue_s {
#if defined(NGX_DEBUG)
#define ngx_queue_remove(x) \
do { \
(x)->next->prev = (x)->prev; \
(x)->prev->next = (x)->next; \
(x)->prev = NULL; \
(x)->next = NULL
(x)->next = NULL; \
} \
while (0)
#else
#define ngx_queue_remove(x) \
do { \
(x)->next->prev = (x)->prev; \
(x)->prev->next = (x)->next
(x)->prev->next = (x)->next; \
} \
while (0)
#endif
#define ngx_queue_split(h, q, n) \
do { \
(n)->prev = (h)->prev; \
(n)->prev->next = n; \
(n)->next = q; \
(h)->prev = (q)->prev; \
(h)->prev->next = h; \
(q)->prev = n;
(q)->prev = n; \
} \
while (0)
#define ngx_queue_add(h, n) \
do { \
(h)->prev->next = (n)->next; \
(n)->next->prev = (h)->prev; \
(h)->prev = (n)->prev; \
(h)->prev->next = h;
(h)->prev->next = h; \
} \
while (0)
#define ngx_queue_data(q, type, link) \
(type *) ((unsigned char *) q - offsetof(type, link))
((type *) ((unsigned char *) q - offsetof(type, link)))
#define ngx_queue_foreach(q, h) \