Mercurial > hg > nginx-vendor-current
view src/core/ngx_queue.c @ 588:b6a5942a4e6a NGINX_0_8_46
nginx 0.8.46
*) Change: now the "proxy_no_cache", "fastcgi_no_cache",
"uwsgi_no_cache", and "scgi_no_cache" directives affect on a cached
response saving only.
*) Feature: the "proxy_cache_bypass", "fastcgi_cache_bypass",
"uwsgi_cache_bypass", and "scgi_cache_bypass" directives.
*) Bugfix: nginx did not free memory in cache keys zones if there was
an error during working with backend: the memory was freed only
after inactivity time or on memory low condition.
author | Igor Sysoev <http://sysoev.ru> |
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date | Mon, 19 Jul 2010 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); } }