annotate src/core/ngx_alloc.h @ 78:9f81437e0ad3

nginx-0.0.1-2003-04-21-18:55:47 import
author Igor Sysoev <igor@sysoev.ru>
date Mon, 21 Apr 2003 14:55:47 +0000
parents 0e81ac0bb3e2
children 637625a2acdb
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1 #ifndef _NGX_ALLOC_H_INCLUDED_
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2 #define _NGX_ALLOC_H_INCLUDED_
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5 #include <ngx_config.h>
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7 #include <ngx_log.h>
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9 /* NGX_MAX_ALLOC_FROM_POOL should be (PAGE_SIZE - 1), i.e. 4095 on x86.
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10 On FreeBSD 5.x it allows to use zero copy send.
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11 On Windows NT it decreases number of locked pages in kernel.
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12 */
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13 #define NGX_MAX_ALLOC_FROM_POOL 4095
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15 #define NGX_DEFAULT_POOL_SIZE (16 * 1024)
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17 #define ngx_test_null(p, alloc, rc) if ((p = alloc) == NULL) { return rc; }
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20 typedef struct ngx_pool_large_s ngx_pool_large_t;
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21 struct ngx_pool_large_s {
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22 ngx_pool_large_t *next;
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23 void *alloc;
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24 };
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26 typedef struct ngx_pool_s ngx_pool_t;
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27 struct ngx_pool_s {
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28 char *last;
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29 char *end;
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30 ngx_pool_t *next;
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31 ngx_pool_large_t *large;
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32 ngx_log_t *log;
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33 };
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36 void *ngx_alloc(size_t size, ngx_log_t *log);
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37 void *ngx_calloc(size_t size, ngx_log_t *log);
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39 ngx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log);
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40 void ngx_destroy_pool(ngx_pool_t *pool);
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42 void *ngx_palloc(ngx_pool_t *pool, size_t size);
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43 void *ngx_pcalloc(ngx_pool_t *pool, size_t size);
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46 #endif /* _NGX_ALLOC_H_INCLUDED_ */