Mercurial > hg > nginx
annotate src/core/ngx_array.c @ 8794:ba5977b38b2e quic
HTTP/3: reordered H3_MISSING_SETTINGS and H3_FRAME_UNEXPECTED.
The quic-http-34 is ambiguous as to what error should be generated for the
first frame in control stream:
Each side MUST initiate a single control stream at the beginning of
the connection and send its SETTINGS frame as the first frame on this
stream. If the first frame of the control stream is any other frame
type, this MUST be treated as a connection error of type
H3_MISSING_SETTINGS.
If a DATA frame is received on a control stream, the recipient MUST
respond with a connection error of type H3_FRAME_UNEXPECTED.
If a HEADERS frame is received on a control stream, the recipient MUST
respond with a connection error of type H3_FRAME_UNEXPECTED.
Previously, H3_FRAME_UNEXPECTED had priority, but now H3_MISSING_SETTINGS has.
The arguments in the spec sound more compelling for H3_MISSING_SETTINGS.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Fri, 11 Jun 2021 10:56:51 +0300 |
parents | 4fef8ed52389 |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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11 |
605 | 12 ngx_array_t * |
13 ngx_array_create(ngx_pool_t *p, ngx_uint_t n, size_t size) | |
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14 { |
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15 ngx_array_t *a; |
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16 |
501 | 17 a = ngx_palloc(p, sizeof(ngx_array_t)); |
18 if (a == NULL) { | |
485 | 19 return NULL; |
20 } | |
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21 |
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22 if (ngx_array_init(a, p, n, size) != NGX_OK) { |
485 | 23 return NULL; |
24 } | |
25 | |
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26 return a; |
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27 } |
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28 |
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29 |
605 | 30 void |
31 ngx_array_destroy(ngx_array_t *a) | |
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32 { |
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33 ngx_pool_t *p; |
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34 |
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35 p = a->pool; |
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36 |
2049 | 37 if ((u_char *) a->elts + a->size * a->nalloc == p->d.last) { |
38 p->d.last -= a->size * a->nalloc; | |
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39 } |
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40 |
2049 | 41 if ((u_char *) a + sizeof(ngx_array_t) == p->d.last) { |
42 p->d.last = (u_char *) a; | |
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43 } |
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44 } |
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45 |
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46 |
605 | 47 void * |
48 ngx_array_push(ngx_array_t *a) | |
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49 { |
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50 void *elt, *new; |
485 | 51 size_t size; |
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52 ngx_pool_t *p; |
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53 |
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54 if (a->nelts == a->nalloc) { |
485 | 55 |
56 /* the array is full */ | |
57 | |
58 size = a->size * a->nalloc; | |
59 | |
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60 p = a->pool; |
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61 |
2049 | 62 if ((u_char *) a->elts + size == p->d.last |
63 && p->d.last + a->size <= p->d.end) | |
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64 { |
485 | 65 /* |
66 * the array allocation is the last in the pool | |
67 * and there is space for new allocation | |
68 */ | |
69 | |
2049 | 70 p->d.last += a->size; |
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71 a->nalloc++; |
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72 |
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73 } else { |
485 | 74 /* allocate a new array */ |
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75 |
501 | 76 new = ngx_palloc(p, 2 * size); |
77 if (new == NULL) { | |
485 | 78 return NULL; |
79 } | |
80 | |
81 ngx_memcpy(new, a->elts, size); | |
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82 a->elts = new; |
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83 a->nalloc *= 2; |
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84 } |
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85 } |
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86 |
485 | 87 elt = (u_char *) a->elts + a->size * a->nelts; |
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88 a->nelts++; |
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89 |
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90 return elt; |
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91 } |
485 | 92 |
93 | |
605 | 94 void * |
95 ngx_array_push_n(ngx_array_t *a, ngx_uint_t n) | |
485 | 96 { |
97 void *elt, *new; | |
98 size_t size; | |
99 ngx_uint_t nalloc; | |
100 ngx_pool_t *p; | |
101 | |
102 size = n * a->size; | |
103 | |
104 if (a->nelts + n > a->nalloc) { | |
105 | |
106 /* the array is full */ | |
107 | |
108 p = a->pool; | |
109 | |
2049 | 110 if ((u_char *) a->elts + a->size * a->nalloc == p->d.last |
111 && p->d.last + size <= p->d.end) | |
485 | 112 { |
113 /* | |
114 * the array allocation is the last in the pool | |
115 * and there is space for new allocation | |
116 */ | |
117 | |
2049 | 118 p->d.last += size; |
485 | 119 a->nalloc += n; |
120 | |
121 } else { | |
122 /* allocate a new array */ | |
123 | |
124 nalloc = 2 * ((n >= a->nalloc) ? n : a->nalloc); | |
125 | |
501 | 126 new = ngx_palloc(p, nalloc * a->size); |
127 if (new == NULL) { | |
485 | 128 return NULL; |
129 } | |
130 | |
131 ngx_memcpy(new, a->elts, a->nelts * a->size); | |
132 a->elts = new; | |
133 a->nalloc = nalloc; | |
134 } | |
135 } | |
136 | |
137 elt = (u_char *) a->elts + a->size * a->nelts; | |
138 a->nelts += n; | |
139 | |
140 return elt; | |
141 } |