Mercurial > hg > nginx-quic
annotate src/core/ngx_slab.h @ 5905:2f7e557eab5b
Cache: proxy_cache_lock_age and friends.
Once this age is reached, the cache lock is discarded and another
request can acquire the lock. Requests which failed to acquire
the lock are not allowed to cache the response.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Tue, 18 Nov 2014 20:41:12 +0300 |
parents | 25ade23cf281 |
children | 99770a5ea14f |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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441
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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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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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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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31 ngx_slab_page_t *pages; |
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32 ngx_slab_page_t *last; |
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33 ngx_slab_page_t free; |
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34 |
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35 u_char *start; |
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36 u_char *end; |
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37 |
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38 ngx_shmtx_t mutex; |
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39 |
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40 u_char *log_ctx; |
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41 u_char zero; |
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42 |
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43 unsigned log_nomem:1; |
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44 |
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45 void *data; |
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46 void *addr; |
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47 } ngx_slab_pool_t; |
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48 |
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49 |
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50 void ngx_slab_init(ngx_slab_pool_t *pool); |
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51 void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size); |
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52 void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size); |
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53 void *ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size); |
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54 void *ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size); |
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55 void ngx_slab_free(ngx_slab_pool_t *pool, void *p); |
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56 void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p); |
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57 |
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58 |
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59 #endif /* _NGX_SLAB_H_INCLUDED_ */ |