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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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6
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7
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8 #ifndef _NGX_ARRAY_H_INCLUDED_
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9 #define _NGX_ARRAY_H_INCLUDED_
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10
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11
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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14
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15
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16 struct ngx_array_s {
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17 void *elts;
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18 ngx_uint_t nelts;
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19 size_t size;
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20 ngx_uint_t nalloc;
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21 ngx_pool_t *pool;
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22 };
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23
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24
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34
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25 ngx_array_t *ngx_array_create(ngx_pool_t *p, ngx_uint_t n, size_t size);
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26 void ngx_array_destroy(ngx_array_t *a);
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27 void *ngx_array_push(ngx_array_t *a);
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28 void *ngx_array_push_n(ngx_array_t *a, ngx_uint_t n);
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29
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30
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31 static ngx_inline ngx_int_t
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32 ngx_array_init(ngx_array_t *array, ngx_pool_t *pool, ngx_uint_t n, size_t size)
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33 {
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34 /*
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35 * set "array->nelts" before "array->elts", otherwise MSVC thinks
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36 * that "array->nelts" may be used without having been initialized
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37 */
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38
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39 array->nelts = 0;
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40 array->size = size;
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41 array->nalloc = n;
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42 array->pool = pool;
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43
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44 array->elts = ngx_palloc(pool, n * size);
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45 if (array->elts == NULL) {
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46 return NGX_ERROR;
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47 }
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48
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49 return NGX_OK;
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50 }
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51
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52
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53 #endif /* _NGX_ARRAY_H_INCLUDED_ */
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