Mercurial > hg > nginx-quic
annotate src/core/ngx_array.c @ 4005:e56c1e9873cb
Correctly set body if it's preread and there are extra data.
Previously all available data was used as body, resulting in garbage after
real body e.g. in case of pipelined requests. Make sure to use only as many
bytes as request's Content-Length specifies.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 18 Aug 2011 15:27:57 +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; | |
44
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48 } |
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49 } |
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50 |
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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 } |