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258
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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660
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4 * Copyright (C) Nginx, Inc.
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258
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5 */
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6
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7
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8 #ifndef _NGX_SLAB_H_INCLUDED_
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9 #define _NGX_SLAB_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 typedef struct ngx_slab_page_s ngx_slab_page_t;
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17
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18 struct ngx_slab_page_s {
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19 uintptr_t slab;
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20 ngx_slab_page_t *next;
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21 uintptr_t prev;
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22 };
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23
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24
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25 typedef struct {
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650
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26 ngx_shmtx_sh_t lock;
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27
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28 size_t min_size;
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29 size_t min_shift;
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30
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31 ngx_slab_page_t *pages;
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32 ngx_slab_page_t free;
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33
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34 u_char *start;
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35 u_char *end;
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36
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37 ngx_shmtx_t mutex;
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468
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38
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39 u_char *log_ctx;
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40 u_char zero;
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480
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41
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42 void *data;
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496
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43 void *addr;
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258
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44 } ngx_slab_pool_t;
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45
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46
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47 void ngx_slab_init(ngx_slab_pool_t *pool);
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48 void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size);
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272
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49 void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size);
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258
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50 void ngx_slab_free(ngx_slab_pool_t *pool, void *p);
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272
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51 void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p);
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258
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52
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53
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54 #endif /* _NGX_SLAB_H_INCLUDED_ */
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