Mercurial > hg > nginx-quic
annotate src/core/ngx_array.c @ 4367:9c4acdf9b276 stable-1.0
Merge of r4315:
Allowed add_header for proxied 206 replies.
It was working for nginx's own 206 replies as they are seen as 200 in the
headers filter module (range filter goes later in the headers filter chain),
but not for proxied replies.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 14 Dec 2011 18:06:21 +0000 |
parents | 2a92804f4109 |
children | d620f497c50f |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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10 |
605 | 11 ngx_array_t * |
12 ngx_array_create(ngx_pool_t *p, ngx_uint_t n, size_t size) | |
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13 { |
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14 ngx_array_t *a; |
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15 |
501 | 16 a = ngx_palloc(p, sizeof(ngx_array_t)); |
17 if (a == NULL) { | |
485 | 18 return NULL; |
19 } | |
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20 |
501 | 21 a->elts = ngx_palloc(p, n * size); |
22 if (a->elts == NULL) { | |
485 | 23 return NULL; |
24 } | |
25 | |
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26 a->nelts = 0; |
485 | 27 a->size = size; |
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28 a->nalloc = n; |
485 | 29 a->pool = p; |
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30 |
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31 return a; |
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32 } |
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33 |
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34 |
605 | 35 void |
36 ngx_array_destroy(ngx_array_t *a) | |
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37 { |
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38 ngx_pool_t *p; |
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39 |
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40 p = a->pool; |
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41 |
2049 | 42 if ((u_char *) a->elts + a->size * a->nalloc == p->d.last) { |
43 p->d.last -= a->size * a->nalloc; | |
44
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44 } |
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45 |
2049 | 46 if ((u_char *) a + sizeof(ngx_array_t) == p->d.last) { |
47 p->d.last = (u_char *) a; | |
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48 } |
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49 } |
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51 |
605 | 52 void * |
53 ngx_array_push(ngx_array_t *a) | |
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54 { |
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55 void *elt, *new; |
485 | 56 size_t size; |
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57 ngx_pool_t *p; |
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58 |
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59 if (a->nelts == a->nalloc) { |
485 | 60 |
61 /* the array is full */ | |
62 | |
63 size = a->size * a->nalloc; | |
64 | |
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65 p = a->pool; |
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66 |
2049 | 67 if ((u_char *) a->elts + size == p->d.last |
68 && p->d.last + a->size <= p->d.end) | |
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69 { |
485 | 70 /* |
71 * the array allocation is the last in the pool | |
72 * and there is space for new allocation | |
73 */ | |
74 | |
2049 | 75 p->d.last += a->size; |
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76 a->nalloc++; |
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77 |
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78 } else { |
485 | 79 /* allocate a new array */ |
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80 |
501 | 81 new = ngx_palloc(p, 2 * size); |
82 if (new == NULL) { | |
485 | 83 return NULL; |
84 } | |
85 | |
86 ngx_memcpy(new, a->elts, size); | |
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87 a->elts = new; |
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88 a->nalloc *= 2; |
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89 } |
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90 } |
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91 |
485 | 92 elt = (u_char *) a->elts + a->size * a->nelts; |
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93 a->nelts++; |
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94 |
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95 return elt; |
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96 } |
485 | 97 |
98 | |
605 | 99 void * |
100 ngx_array_push_n(ngx_array_t *a, ngx_uint_t n) | |
485 | 101 { |
102 void *elt, *new; | |
103 size_t size; | |
104 ngx_uint_t nalloc; | |
105 ngx_pool_t *p; | |
106 | |
107 size = n * a->size; | |
108 | |
109 if (a->nelts + n > a->nalloc) { | |
110 | |
111 /* the array is full */ | |
112 | |
113 p = a->pool; | |
114 | |
2049 | 115 if ((u_char *) a->elts + a->size * a->nalloc == p->d.last |
116 && p->d.last + size <= p->d.end) | |
485 | 117 { |
118 /* | |
119 * the array allocation is the last in the pool | |
120 * and there is space for new allocation | |
121 */ | |
122 | |
2049 | 123 p->d.last += size; |
485 | 124 a->nalloc += n; |
125 | |
126 } else { | |
127 /* allocate a new array */ | |
128 | |
129 nalloc = 2 * ((n >= a->nalloc) ? n : a->nalloc); | |
130 | |
501 | 131 new = ngx_palloc(p, nalloc * a->size); |
132 if (new == NULL) { | |
485 | 133 return NULL; |
134 } | |
135 | |
136 ngx_memcpy(new, a->elts, a->nelts * a->size); | |
137 a->elts = new; | |
138 a->nalloc = nalloc; | |
139 } | |
140 } | |
141 | |
142 elt = (u_char *) a->elts + a->size * a->nelts; | |
143 a->nelts += n; | |
144 | |
145 return elt; | |
146 } |