Mercurial > hg > nginx-quic
view src/core/ngx_queue.c @ 8587:185c86b830ef
Request body: introduced rb->last_saved flag.
It indicates that the last buffer was received by the save filter,
and can be used to check this at higher levels. To be used in the
following changes.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Sun, 29 Aug 2021 22:21:03 +0300 |
parents | d620f497c50f |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #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); } }