annotate src/core/ngx_thread_pool.h @ 7892:2096b21fcd10

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 466bd63b63d1
children
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 * Copyright (C) Valentin V. Bartenev
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5 */
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8 #ifndef _NGX_THREAD_POOL_H_INCLUDED_
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9 #define _NGX_THREAD_POOL_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14 #include <ngx_event.h>
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17 struct ngx_thread_task_s {
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18 ngx_thread_task_t *next;
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19 ngx_uint_t id;
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20 void *ctx;
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21 void (*handler)(void *data, ngx_log_t *log);
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22 ngx_event_t event;
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23 };
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26 typedef struct ngx_thread_pool_s ngx_thread_pool_t;
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29 ngx_thread_pool_t *ngx_thread_pool_add(ngx_conf_t *cf, ngx_str_t *name);
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30 ngx_thread_pool_t *ngx_thread_pool_get(ngx_cycle_t *cycle, ngx_str_t *name);
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32 ngx_thread_task_t *ngx_thread_task_alloc(ngx_pool_t *pool, size_t size);
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33 ngx_int_t ngx_thread_task_post(ngx_thread_pool_t *tp, ngx_thread_task_t *task);
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36 #endif /* _NGX_THREAD_POOL_H_INCLUDED_ */