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annotate src/core/ngx_slab.h @ 7682:2ab0ecfe5a5f

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release-1.19.1 tag
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 07 Jul 2020 18:56:06 +0300
parents 69f9ee0342db
children
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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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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8 #ifndef _NGX_SLAB_H_INCLUDED_
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9 #define _NGX_SLAB_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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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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25 typedef struct {
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26 ngx_uint_t total;
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27 ngx_uint_t used;
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28
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29 ngx_uint_t reqs;
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30 ngx_uint_t fails;
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31 } ngx_slab_stat_t;
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33
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34 typedef struct {
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35 ngx_shmtx_sh_t lock;
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36
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37 size_t min_size;
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38 size_t min_shift;
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40 ngx_slab_page_t *pages;
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41 ngx_slab_page_t *last;
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42 ngx_slab_page_t free;
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43
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44 ngx_slab_stat_t *stats;
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45 ngx_uint_t pfree;
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46
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47 u_char *start;
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48 u_char *end;
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49
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50 ngx_shmtx_t mutex;
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52 u_char *log_ctx;
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53 u_char zero;
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54
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55 unsigned log_nomem:1;
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56
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57 void *data;
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58 void *addr;
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59 } ngx_slab_pool_t;
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61
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62 void ngx_slab_sizes_init(void);
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63 void ngx_slab_init(ngx_slab_pool_t *pool);
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64 void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size);
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65 void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size);
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66 void *ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size);
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67 void *ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size);
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68 void ngx_slab_free(ngx_slab_pool_t *pool, void *p);
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69 void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p);
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72 #endif /* _NGX_SLAB_H_INCLUDED_ */