Mercurial > hg > nginx-vendor-current
view src/core/ngx_queue.c @ 470:6866b490272e NGINX_0_7_47
nginx 0.7.47
*) Bugfix: nginx could not be built on FreeBSD 6 and early versions;
the bug had appeared in 0.7.46.
*) Bugfix: nginx could not be built on MacOSX; the bug had
appeared in 0.7.46.
*) Bugfix: if the "max_size" parameter was set, then the cache manager
might purge a whole cache; the bug had appeared in 0.7.46.
*) Change: a segmentation fault might occur in worker process, if the
"proxy_cache"/"fastcgi_cache" and the "proxy_cache_valid"/
"fastcgi_cache_valid" were set on different levels; the bug had
appeared in 0.7.46.
*) Bugfix: a segmentation fault might occur in worker process, if a
request was redirected to a proxied or FastCGI server via error_page
or try_files; the bug had appeared in 0.7.44.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Wed, 01 Apr 2009 00:00:00 +0400 |
parents | 820f6378fc00 |
children | d0f7a625f27c |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> /* * find the middle queue element if the queue has odd number of elements * or the first element of the queue's second part otherwise */ ngx_queue_t * ngx_queue_middle(ngx_queue_t *queue) { ngx_queue_t *middle, *next; middle = ngx_queue_head(queue); if (middle == ngx_queue_last(queue)) { return middle; } next = ngx_queue_head(queue); for ( ;; ) { middle = ngx_queue_next(middle); next = ngx_queue_next(next); if (next == ngx_queue_last(queue)) { return middle; } next = ngx_queue_next(next); if (next == ngx_queue_last(queue)) { return middle; } } } /* the stable insertion sort */ void ngx_queue_sort(ngx_queue_t *queue, ngx_int_t (*cmp)(const ngx_queue_t *, const ngx_queue_t *)) { ngx_queue_t *q, *prev, *next; q = ngx_queue_head(queue); if (q == ngx_queue_last(queue)) { return; } for (q = ngx_queue_next(q); q != ngx_queue_sentinel(queue); q = next) { prev = ngx_queue_prev(q); next = ngx_queue_next(q); ngx_queue_remove(q); do { if (cmp(prev, q) <= 0) { break; } prev = ngx_queue_prev(prev); } while (prev != ngx_queue_sentinel(queue)); ngx_queue_insert_after(prev, q); } }