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annotate src/core/ngx_list.c @ 7892:2096b21fcd10

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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 a82f305487c2
children
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
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3 * Copyright (C) Igor Sysoev
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d620f497c50f Copyright updated.
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4 * Copyright (C) Nginx, Inc.
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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5 */
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388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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8 #include <ngx_config.h>
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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9 #include <ngx_core.h>
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12 ngx_list_t *
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13 ngx_list_create(ngx_pool_t *pool, ngx_uint_t n, size_t size)
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14 {
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15 ngx_list_t *list;
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16
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17 list = ngx_palloc(pool, sizeof(ngx_list_t));
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18 if (list == NULL) {
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19 return NULL;
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20 }
791ea37bc944 ngx_list_create()
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21
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22 if (ngx_list_init(list, pool, n, size) != NGX_OK) {
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23 return NULL;
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24 }
791ea37bc944 ngx_list_create()
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25
791ea37bc944 ngx_list_create()
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26 return list;
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27 }
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28
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29
791ea37bc944 ngx_list_create()
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30 void *
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31 ngx_list_push(ngx_list_t *l)
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32 {
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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33 void *elt;
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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34 ngx_list_part_t *last;
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388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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36 last = l->last;
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388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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38 if (last->nelts == l->nalloc) {
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388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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40 /* the last part is full, allocate a new list part */
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41
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42 last = ngx_palloc(l->pool, sizeof(ngx_list_part_t));
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43 if (last == NULL) {
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44 return NULL;
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45 }
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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d4ea69372b94 nginx-0.1.25-RELEASE import
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47 last->elts = ngx_palloc(l->pool, l->nalloc * l->size);
d4ea69372b94 nginx-0.1.25-RELEASE import
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48 if (last->elts == NULL) {
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49 return NULL;
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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50 }
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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51
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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52 last->nelts = 0;
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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53 last->next = NULL;
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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54
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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55 l->last->next = last;
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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56 l->last = last;
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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57 }
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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59 elt = (char *) last->elts + l->size * last->nelts;
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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60 last->nelts++;
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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61
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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62 return elt;
388a842cbbe1 nginx-0.0.10-2004-09-03-19:50:30 import
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63 }