Mercurial > hg > nginx
changeset 1646:9638a809d3cd
ngx_queue.h
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 23 Nov 2007 16:32:50 +0000 |
| parents | 31622d9f2c0d |
| children | c68477afa410 |
| files | auto/sources src/core/ngx_core.h src/core/ngx_queue.h |
| diffstat | 3 files changed, 65 insertions(+), 0 deletions(-) [+] |
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--- a/auto/sources +++ b/auto/sources @@ -15,6 +15,7 @@ CORE_DEPS="src/core/nginx.h \ src/core/ngx_list.h \ src/core/ngx_hash.h \ src/core/ngx_buf.h \ + src/core/ngx_queue.h \ src/core/ngx_string.h \ src/core/ngx_parse.h \ src/core/ngx_inet.h \
--- a/src/core/ngx_core.h +++ b/src/core/ngx_core.h @@ -50,6 +50,7 @@ typedef void (*ngx_connection_handler_pt #include <ngx_alloc.h> #include <ngx_palloc.h> #include <ngx_buf.h> +#include <ngx_queue.h> #include <ngx_array.h> #include <ngx_list.h> #include <ngx_hash.h>
new file mode 100644 --- /dev/null +++ b/src/core/ngx_queue.h @@ -0,0 +1,63 @@ + +/* + * Copyright (C) Igor Sysoev + */ + + +#include <ngx_config.h> +#include <ngx_core.h> + + +#ifndef _NGX_QUEUE_H_INCLUDED_ +#define _NGX_QUEUE_H_INCLUDED_ + + +typedef struct ngx_queue_s ngx_queue_t; + +struct ngx_queue_s { + ngx_queue_t *prev; + ngx_queue_t *next; +}; + + +#define ngx_queue_empty(h) \ + (h == (h)->prev) + + +#define ngx_queue_insert_head(h, x) \ + (x)->next = (h)->next; \ + (x)->next->prev = x; \ + (x)->prev = h; \ + (h)->next = x + + +#define ngx_queue_head(h) \ + (h)->next + + +#define ngx_queue_last(h) \ + (h)->prev + + +#if (NGX_DEBUG) + +#define ngx_queue_remove(x) \ + (x)->next->prev = (x)->prev; \ + (x)->prev->next = (x)->next; \ + (x)->prev = NULL; \ + (x)->next = NULL + +#else + +#define ngx_queue_remove(x) \ + (x)->next->prev = (x)->prev; \ + (x)->prev->next = (x)->next + +#endif + + +#define ngx_queue_data(q, type, link) \ + (type *) ((u_char *) q - offsetof(type, link)) + + +#endif /* _NGX_QUEUE_H_INCLUDED_ */