Mercurial > hg > nginx-quic
annotate src/core/ngx_palloc.c @ 585:401de5a43ba5 release-0.3.14
nginx-0.3.14-RELEASE import
*) Bugfix: in the 304 response the body was transferred; the bug had
appeared in 0.3.13.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Mon, 05 Dec 2005 16:59:05 +0000 |
parents | 4e296b7d25bf |
children | d4e858a5751a |
rev | line source |
---|---|
441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
0
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6 |
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7 #include <ngx_config.h> |
100
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8 #include <ngx_core.h> |
0
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9 |
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10 |
501 | 11 ngx_pool_t * |
12 ngx_create_pool(size_t size, ngx_log_t *log) | |
0
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13 { |
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14 ngx_pool_t *p; |
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15 |
501 | 16 p = ngx_alloc(size, log); |
17 if (p == NULL) { | |
527 | 18 return NULL; |
194
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19 } |
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20 |
485 | 21 p->last = (u_char *) p + sizeof(ngx_pool_t); |
22 p->end = (u_char *) p + size; | |
581 | 23 p->current = p; |
24 p->chain = NULL; | |
0
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25 p->next = NULL; |
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26 p->large = NULL; |
509 | 27 p->cleanup = NULL; |
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28 p->log = log; |
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29 |
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30 return p; |
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31 } |
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32 |
156
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33 |
501 | 34 void |
35 ngx_destroy_pool(ngx_pool_t *pool) | |
0
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36 { |
509 | 37 ngx_pool_t *p, *n; |
38 ngx_pool_large_t *l; | |
39 ngx_pool_cleanup_t *c; | |
40 | |
41 for (c = pool->cleanup; c; c = c->next) { | |
42 if (c->handler) { | |
43 c->handler(c->data); | |
44 } | |
45 } | |
0
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46 |
10
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47 for (l = pool->large; l; l = l->next) { |
257
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48 |
461 | 49 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, "free: %p", l->alloc); |
257
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50 |
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51 if (l->alloc) { |
477 | 52 ngx_free(l->alloc); |
156
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53 } |
10
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54 } |
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55 |
257
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56 #if (NGX_DEBUG) |
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57 |
128
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58 /* |
257
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59 * we could allocate the pool->log from this pool |
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60 * so we can not use this log while the free()ing the pool |
128
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61 */ |
126
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62 |
128
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63 for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { |
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64 ngx_log_debug2(NGX_LOG_DEBUG_ALLOC, pool->log, 0, |
461 | 65 "free: %p, unused: %uz", p, p->end - p->last); |
133
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66 |
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67 if (n == NULL) { |
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68 break; |
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69 } |
128
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70 } |
257
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71 |
39
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72 #endif |
128
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73 |
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74 for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { |
477 | 75 ngx_free(p); |
128
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76 |
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77 if (n == NULL) { |
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78 break; |
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79 } |
126
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80 } |
0
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81 } |
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82 |
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83 |
501 | 84 void * |
85 ngx_palloc(ngx_pool_t *pool, size_t size) | |
0
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86 { |
485 | 87 u_char *m; |
0
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88 ngx_pool_t *p, *n; |
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89 ngx_pool_large_t *large, *last; |
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90 |
429
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91 if (size <= (size_t) NGX_MAX_ALLOC_FROM_POOL |
485 | 92 && size <= (size_t) (pool->end - (u_char *) pool) |
452 | 93 - (size_t) ngx_align(sizeof(ngx_pool_t))) |
429
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94 { |
581 | 95 for (p = pool->current; /* void */ ; p = p->next) { |
104
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96 m = ngx_align(p->last); |
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97 |
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98 if ((size_t) (p->end - m) >= size) { |
452 | 99 p->last = m + size; |
0
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100 |
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101 return m; |
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102 } |
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103 |
581 | 104 if ((size_t) (p->end - m) < NGX_ALIGNMENT) { |
583 | 105 pool->current = p->next; |
581 | 106 } |
107 | |
108 if (p->next == NULL) { | |
0
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109 break; |
39
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110 } |
0
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111 } |
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112 |
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113 /* allocate a new pool block */ |
156
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114 |
501 | 115 n = ngx_create_pool((size_t) (p->end - (u_char *) p), p->log); |
116 if (n == NULL) { | |
194
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117 return NULL; |
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118 } |
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119 |
583 | 120 if (pool->current == NULL) { |
121 pool->current = n; | |
581 | 122 } |
123 | |
0
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124 p->next = n; |
452 | 125 m = ngx_align(n->last); |
126 n->last = m + size; | |
156
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127 |
0
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128 return m; |
156
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129 } |
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130 |
426
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131 /* allocate a large block */ |
156
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132 |
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133 large = NULL; |
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134 last = NULL; |
0
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135 |
156
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136 if (pool->large) { |
436
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137 for (last = pool->large; /* void */ ; last = last->next) { |
156
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138 if (last->alloc == NULL) { |
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139 large = last; |
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140 last = NULL; |
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141 break; |
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142 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
143 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
144 if (last->next == NULL) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
145 break; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
146 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
147 } |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
148 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
149 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
150 if (large == NULL) { |
501 | 151 large = ngx_palloc(pool, sizeof(ngx_pool_large_t)); |
152 if (large == NULL) { | |
194
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
153 return NULL; |
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
154 } |
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
155 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
156 large->next = NULL; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
157 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
158 |
347
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
159 #if 0 |
501 | 160 p = ngx_memalign(ngx_pagesize, size, pool->log); |
161 if (p == NULL) { | |
194
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
162 return NULL; |
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
163 } |
347
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
164 #else |
501 | 165 p = ngx_alloc(size, pool->log); |
166 if (p == NULL) { | |
347
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
167 return NULL; |
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
168 } |
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
169 #endif |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
170 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
171 if (pool->large == NULL) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
172 pool->large = large; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
173 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
174 } else if (last) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
175 last->next = large; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
176 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
177 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
178 large->alloc = p; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
179 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
180 return p; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
181 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
182 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
183 |
501 | 184 ngx_int_t |
185 ngx_pfree(ngx_pool_t *pool, void *p) | |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
186 { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
187 ngx_pool_large_t *l; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
189 for (l = pool->large; l; l = l->next) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
190 if (p == l->alloc) { |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
194
diff
changeset
|
191 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, |
461 | 192 "free: %p", l->alloc); |
477 | 193 ngx_free(l->alloc); |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
194 l->alloc = NULL; |
436
9549fc9508e5
nginx-0.0.11-2004-09-23-10:32:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
429
diff
changeset
|
195 |
9549fc9508e5
nginx-0.0.11-2004-09-23-10:32:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
429
diff
changeset
|
196 return NGX_OK; |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
197 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
198 } |
436
9549fc9508e5
nginx-0.0.11-2004-09-23-10:32:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
429
diff
changeset
|
199 |
9549fc9508e5
nginx-0.0.11-2004-09-23-10:32:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
429
diff
changeset
|
200 return NGX_DECLINED; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
201 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
202 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
203 |
501 | 204 void * |
205 ngx_pcalloc(ngx_pool_t *pool, size_t size) | |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
206 { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
207 void *p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
208 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
209 p = ngx_palloc(pool, size); |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
210 if (p) { |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
211 ngx_memzero(p, size); |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
212 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
214 return p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
215 } |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
216 |
509 | 217 |
218 ngx_pool_cleanup_t * | |
563 | 219 ngx_pool_cleanup_add(ngx_pool_t *p, size_t size) |
509 | 220 { |
221 ngx_pool_cleanup_t *c; | |
222 | |
223 c = ngx_palloc(p, sizeof(ngx_pool_cleanup_t)); | |
224 if (c == NULL) { | |
225 return NULL; | |
226 } | |
227 | |
563 | 228 if (size) { |
229 c->data = ngx_palloc(p, size); | |
230 if (c->data == NULL) { | |
231 return NULL; | |
232 } | |
233 | |
234 } else { | |
235 c->data = NULL; | |
236 } | |
237 | |
238 c->handler = NULL; | |
509 | 239 c->next = p->cleanup; |
240 | |
241 p->cleanup = c; | |
242 | |
563 | 243 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, p->log, 0, "add cleanup: %p", c); |
244 | |
509 | 245 return c; |
246 } | |
247 | |
248 | |
249 void | |
250 ngx_pool_cleanup_file(void *data) | |
251 { | |
252 ngx_pool_cleanup_file_t *c = data; | |
253 | |
563 | 254 ngx_log_debug2(NGX_LOG_DEBUG_ALLOC, c->log, 0, "run cleanup: %p, fd:%d", |
255 c, c->fd); | |
256 | |
509 | 257 if (ngx_close_file(c->fd) == NGX_FILE_ERROR) { |
258 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, | |
259 ngx_close_file_n " \"%s\" failed", c->name); | |
260 } | |
261 } | |
262 | |
263 | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
264 #if 0 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
265 |
501 | 266 static void * |
267 ngx_get_cached_block(size_t size) | |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
268 { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
269 void *p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
270 ngx_cached_block_slot_t *slot; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
271 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
272 if (ngx_cycle->cache == NULL) { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
273 return NULL; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
274 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
275 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
276 slot = &ngx_cycle->cache[(size + ngx_pagesize - 1) / ngx_pagesize]; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
277 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
278 slot->tries++; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
279 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
280 if (slot->number) { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
281 p = slot->block; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
282 slot->block = slot->block->next; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
283 slot->number--; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
284 return p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
285 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
286 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
287 return NULL; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
288 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
289 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
290 #endif |