Mercurial > hg > nginx
view src/core/ngx_radix_tree.h @ 7646:2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
As per https://tools.ietf.org/html/rfc7540#section-8.1,
: A server can send a complete response prior to the client
: sending an entire request if the response does not depend on
: any portion of the request that has not been sent and
: received. When this is true, a server MAY request that the
: client abort transmission of a request without error by
: sending a RST_STREAM with an error code of NO_ERROR after
: sending a complete response (i.e., a frame with the
: END_STREAM flag). Clients MUST NOT discard responses as a
: result of receiving such a RST_STREAM, though clients can
: always discard responses at their discretion for other
: reasons.
Previously, RST_STREAM(NO_ERROR) received from upstream after
a frame with the END_STREAM flag was incorrectly treated as an
error. Now, a single RST_STREAM(NO_ERROR) is properly handled.
This fixes problems observed with modern grpc-c [1], as well
as with the Go gRPC module.
[1] https://github.com/grpc/grpc/pull/1661
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Thu, 23 Apr 2020 15:10:24 +0300 |
parents | 3be3de31d7dd |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_RADIX_TREE_H_INCLUDED_ #define _NGX_RADIX_TREE_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #define NGX_RADIX_NO_VALUE (uintptr_t) -1 typedef struct ngx_radix_node_s ngx_radix_node_t; struct ngx_radix_node_s { ngx_radix_node_t *right; ngx_radix_node_t *left; ngx_radix_node_t *parent; uintptr_t value; }; typedef struct { ngx_radix_node_t *root; ngx_pool_t *pool; ngx_radix_node_t *free; char *start; size_t size; } ngx_radix_tree_t; ngx_radix_tree_t *ngx_radix_tree_create(ngx_pool_t *pool, ngx_int_t preallocate); ngx_int_t ngx_radix32tree_insert(ngx_radix_tree_t *tree, uint32_t key, uint32_t mask, uintptr_t value); ngx_int_t ngx_radix32tree_delete(ngx_radix_tree_t *tree, uint32_t key, uint32_t mask); uintptr_t ngx_radix32tree_find(ngx_radix_tree_t *tree, uint32_t key); #if (NGX_HAVE_INET6) ngx_int_t ngx_radix128tree_insert(ngx_radix_tree_t *tree, u_char *key, u_char *mask, uintptr_t value); ngx_int_t ngx_radix128tree_delete(ngx_radix_tree_t *tree, u_char *key, u_char *mask); uintptr_t ngx_radix128tree_find(ngx_radix_tree_t *tree, u_char *key); #endif #endif /* _NGX_RADIX_TREE_H_INCLUDED_ */