Mercurial > hg > nginx-quic
view src/core/ngx_slab.h @ 7286:d27aa9060c95
Stream: udp streams.
Previously, only one client packet could be processed in a udp stream session
even though multiple response packets were supported. Now multiple packets
coming from the same client address and port are delivered to the same stream
session.
If it's required to maintain a single stream of data, nginx should be
configured in a way that all packets from a client are delivered to the same
worker. On Linux and DragonFly BSD the "reuseport" parameter should be
specified for this. Other systems do not currently provide appropriate
mechanisms. For these systems a single stream of udp packets is only
guaranteed in single-worker configurations.
The proxy_response directive now specifies how many packets are expected in
response to a single client packet.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Mon, 04 Jun 2018 19:50:00 +0300 |
parents | 69f9ee0342db |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_SLAB_H_INCLUDED_ #define _NGX_SLAB_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> typedef struct ngx_slab_page_s ngx_slab_page_t; struct ngx_slab_page_s { uintptr_t slab; ngx_slab_page_t *next; uintptr_t prev; }; typedef struct { ngx_uint_t total; ngx_uint_t used; ngx_uint_t reqs; ngx_uint_t fails; } ngx_slab_stat_t; typedef struct { ngx_shmtx_sh_t lock; size_t min_size; size_t min_shift; ngx_slab_page_t *pages; ngx_slab_page_t *last; ngx_slab_page_t free; ngx_slab_stat_t *stats; ngx_uint_t pfree; u_char *start; u_char *end; ngx_shmtx_t mutex; u_char *log_ctx; u_char zero; unsigned log_nomem:1; void *data; void *addr; } ngx_slab_pool_t; void ngx_slab_sizes_init(void); void ngx_slab_init(ngx_slab_pool_t *pool); void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size); void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size); void *ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size); void *ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size); void ngx_slab_free(ngx_slab_pool_t *pool, void *p); void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p); #endif /* _NGX_SLAB_H_INCLUDED_ */