Mercurial > hg > nginx
annotate src/core/ngx_palloc.h @ 2920:cb7d05c097db
do not test a pool block space if we can not allocated from the block 4 times
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 05 Jun 2009 13:27:12 +0000 |
parents | 3a8a53c0c42f |
children | d788521e4b0e |
rev | line source |
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1 |
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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 Windows NT it decreases a number of locked pages in a kernel. |
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18 */ |
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19 #define NGX_MAX_ALLOC_FROM_POOL (ngx_pagesize - 1) |
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20 |
1200 | 21 #define NGX_DEFAULT_POOL_SIZE (16 * 1024) |
22 #define NGX_MIN_POOL_SIZE \ | |
23 (sizeof(ngx_pool_t) + 2 * sizeof(ngx_pool_large_t)) | |
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25 |
509 | 26 typedef void (*ngx_pool_cleanup_pt)(void *data); |
27 | |
28 typedef struct ngx_pool_cleanup_s ngx_pool_cleanup_t; | |
29 | |
30 struct ngx_pool_cleanup_s { | |
31 ngx_pool_cleanup_pt handler; | |
32 void *data; | |
33 ngx_pool_cleanup_t *next; | |
34 }; | |
35 | |
36 | |
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37 typedef struct ngx_pool_large_s ngx_pool_large_t; |
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38 |
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39 struct ngx_pool_large_s { |
509 | 40 ngx_pool_large_t *next; |
41 void *alloc; | |
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42 }; |
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44 |
2049 | 45 typedef struct { |
509 | 46 u_char *last; |
47 u_char *end; | |
2049 | 48 ngx_pool_t *next; |
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do not test a pool block space if we can not allocated from the block 4 times
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49 ngx_uint_t failed; |
2049 | 50 } ngx_pool_data_t; |
51 | |
52 | |
53 struct ngx_pool_s { | |
54 ngx_pool_data_t d; | |
55 size_t max; | |
581 | 56 ngx_pool_t *current; |
509 | 57 ngx_chain_t *chain; |
58 ngx_pool_large_t *large; | |
59 ngx_pool_cleanup_t *cleanup; | |
60 ngx_log_t *log; | |
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61 }; |
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62 |
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63 |
509 | 64 typedef struct { |
65 ngx_fd_t fd; | |
66 u_char *name; | |
67 ngx_log_t *log; | |
68 } ngx_pool_cleanup_file_t; | |
69 | |
70 | |
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71 void *ngx_alloc(size_t size, ngx_log_t *log); |
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72 void *ngx_calloc(size_t size, ngx_log_t *log); |
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73 |
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74 ngx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log); |
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75 void ngx_destroy_pool(ngx_pool_t *pool); |
2337 | 76 void ngx_reset_pool(ngx_pool_t *pool); |
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77 |
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78 void *ngx_palloc(ngx_pool_t *pool, size_t size); |
2049 | 79 void *ngx_pnalloc(ngx_pool_t *pool, size_t size); |
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80 void *ngx_pcalloc(ngx_pool_t *pool, size_t size); |
2129 | 81 void *ngx_pmemalign(ngx_pool_t *pool, size_t size, size_t alignment); |
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82 ngx_int_t ngx_pfree(ngx_pool_t *pool, void *p); |
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83 |
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84 |
563 | 85 ngx_pool_cleanup_t *ngx_pool_cleanup_add(ngx_pool_t *p, size_t size); |
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86 void ngx_pool_run_cleanup_file(ngx_pool_t *p, ngx_fd_t fd); |
509 | 87 void ngx_pool_cleanup_file(void *data); |
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88 void ngx_pool_delete_file(void *data); |
509 | 89 |
90 | |
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91 #endif /* _NGX_PALLOC_H_INCLUDED_ */ |