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annotate src/core/ngx_palloc.h @ 1316:f5bb5521d02c
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 17 Jul 2007 10:15:07 +0000 |
parents | ff63527ea29c |
children | 4d8140271204 |
rev | line source |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #ifndef _NGX_PALLOC_H_INCLUDED_ |
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8 #define _NGX_PALLOC_H_INCLUDED_ |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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15 /* |
589 | 16 * NGX_MAX_ALLOC_FROM_POOL should be (ngx_pagesize - 1), i.e. 4095 on x86. |
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17 * On FreeBSD 5.x it allows to use the zero copy sending. |
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18 * On Windows NT it decreases a number of locked pages in a kernel. |
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19 */ |
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20 #define NGX_MAX_ALLOC_FROM_POOL (ngx_pagesize - 1) |
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21 |
1200 | 22 #define NGX_DEFAULT_POOL_SIZE (16 * 1024) |
23 #define NGX_MIN_POOL_SIZE \ | |
24 (sizeof(ngx_pool_t) + 2 * sizeof(ngx_pool_large_t)) | |
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509 | 27 typedef void (*ngx_pool_cleanup_pt)(void *data); |
28 | |
29 typedef struct ngx_pool_cleanup_s ngx_pool_cleanup_t; | |
30 | |
31 struct ngx_pool_cleanup_s { | |
32 ngx_pool_cleanup_pt handler; | |
33 void *data; | |
34 ngx_pool_cleanup_t *next; | |
35 }; | |
36 | |
37 | |
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38 typedef struct ngx_pool_large_s ngx_pool_large_t; |
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40 struct ngx_pool_large_s { |
509 | 41 ngx_pool_large_t *next; |
42 void *alloc; | |
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43 }; |
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46 struct ngx_pool_s { |
509 | 47 u_char *last; |
48 u_char *end; | |
581 | 49 ngx_pool_t *current; |
509 | 50 ngx_chain_t *chain; |
51 ngx_pool_t *next; | |
52 ngx_pool_large_t *large; | |
53 ngx_pool_cleanup_t *cleanup; | |
54 ngx_log_t *log; | |
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55 }; |
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509 | 58 typedef struct { |
59 ngx_fd_t fd; | |
60 u_char *name; | |
61 ngx_log_t *log; | |
62 } ngx_pool_cleanup_file_t; | |
63 | |
64 | |
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65 void *ngx_alloc(size_t size, ngx_log_t *log); |
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66 void *ngx_calloc(size_t size, ngx_log_t *log); |
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68 ngx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log); |
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69 void ngx_destroy_pool(ngx_pool_t *pool); |
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71 void *ngx_palloc(ngx_pool_t *pool, size_t size); |
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72 void *ngx_pcalloc(ngx_pool_t *pool, size_t size); |
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73 ngx_int_t ngx_pfree(ngx_pool_t *pool, void *p); |
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563 | 76 ngx_pool_cleanup_t *ngx_pool_cleanup_add(ngx_pool_t *p, size_t size); |
509 | 77 void ngx_pool_cleanup_file(void *data); |
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78 void ngx_pool_delete_file(void *data); |
509 | 79 |
80 | |
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81 #endif /* _NGX_PALLOC_H_INCLUDED_ */ |