Mercurial > hg > nginx
view src/event/ngx_event_posted.c @ 7924:d9e009b39596
HTTP/2: optimized processing of small DATA frames.
The request body filter chain is no longer called after processing
a DATA frame. Instead, we now post a read event to do this. This
ensures that multiple small DATA frames read during the same event loop
iteration are coalesced together, resulting in much faster processing.
Since rb->buf can now contain unprocessed data, window update is no
longer sent in ngx_http_v2_state_read_data() in case of flow control
being used due to filter buffering. Instead, window will be updated
by ngx_http_v2_read_client_request_body_handler() in the posted read
event.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 06 Sep 2021 14:54:50 +0300 |
parents | f1720934c45b |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> ngx_queue_t ngx_posted_accept_events; ngx_queue_t ngx_posted_next_events; ngx_queue_t ngx_posted_events; void ngx_event_process_posted(ngx_cycle_t *cycle, ngx_queue_t *posted) { ngx_queue_t *q; ngx_event_t *ev; while (!ngx_queue_empty(posted)) { q = ngx_queue_head(posted); ev = ngx_queue_data(q, ngx_event_t, queue); ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "posted event %p", ev); ngx_delete_posted_event(ev); ev->handler(ev); } } void ngx_event_move_posted_next(ngx_cycle_t *cycle) { ngx_queue_t *q; ngx_event_t *ev; for (q = ngx_queue_head(&ngx_posted_next_events); q != ngx_queue_sentinel(&ngx_posted_next_events); q = ngx_queue_next(q)) { ev = ngx_queue_data(q, ngx_event_t, queue); ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "posted next event %p", ev); ev->ready = 1; ev->available = -1; } ngx_queue_add(&ngx_posted_events, &ngx_posted_next_events); ngx_queue_init(&ngx_posted_next_events); }