Mercurial > hg > nginx-quic
annotate src/core/ngx_palloc.c @ 388:80e72c428b39
nginx-0.0.7-2004-07-13-00:43:53 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 12 Jul 2004 20:43:53 +0000 |
parents | f48d579daf78 |
children | 3f88935a02e8 |
rev | line source |
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1 |
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 |
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5 |
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6 ngx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log) |
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7 { |
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8 ngx_pool_t *p; |
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10 if (!(p = ngx_alloc(size, log))) { |
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11 return NULL; |
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12 } |
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14 p->last = (char *) p + sizeof(ngx_pool_t); |
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15 p->end = (char *) p + size; |
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16 p->next = NULL; |
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17 p->large = NULL; |
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18 p->log = log; |
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19 |
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20 return p; |
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21 } |
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23 |
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24 void ngx_destroy_pool(ngx_pool_t *pool) |
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25 { |
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26 ngx_pool_t *p, *n; |
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27 ngx_pool_large_t *l; |
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28 |
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29 for (l = pool->large; l; l = l->next) { |
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30 |
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31 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, |
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32 "free: " PTR_FMT, l->alloc); |
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33 |
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34 if (l->alloc) { |
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35 free(l->alloc); |
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36 } |
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37 } |
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38 |
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39 #if (NGX_DEBUG) |
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40 |
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41 /* |
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42 * we could allocate the pool->log from this pool |
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43 * so we can not use this log while the free()ing the pool |
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44 */ |
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45 |
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46 for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { |
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47 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, |
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48 "free: " PTR_FMT, p); |
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49 |
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50 if (n == NULL) { |
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51 break; |
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52 } |
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53 } |
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54 |
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55 #endif |
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56 |
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57 for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { |
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58 free(p); |
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59 |
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60 if (n == NULL) { |
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61 break; |
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62 } |
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63 } |
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64 } |
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65 |
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66 |
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67 void *ngx_palloc(ngx_pool_t *pool, size_t size) |
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68 { |
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69 char *m; |
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70 ngx_pool_t *p, *n; |
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71 ngx_pool_large_t *large, *last; |
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72 |
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73 if (size <= (size_t) NGX_MAX_ALLOC_FROM_POOL) { |
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74 |
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75 for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { |
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76 m = ngx_align(p->last); |
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77 |
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78 if ((size_t) (p->end - m) >= size) { |
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79 p->last = m + size ; |
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80 |
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81 return m; |
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82 } |
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83 |
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84 if (n == NULL) { |
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85 break; |
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86 } |
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87 } |
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88 |
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89 /* alloc a new pool block */ |
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90 |
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91 if (!(n = ngx_create_pool((size_t) (p->end - (char *) p), p->log))) { |
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92 return NULL; |
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93 } |
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94 |
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95 p->next = n; |
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96 m = n->last; |
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97 n->last += size; |
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98 |
0
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99 return m; |
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100 } |
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101 |
156
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102 /* alloc a large block */ |
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103 |
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104 large = NULL; |
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105 last = NULL; |
0
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106 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
107 if (pool->large) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
108 for (last = pool->large; /* void */; last = last->next) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
109 if (last->alloc == NULL) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
110 large = last; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
111 last = NULL; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
112 break; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
113 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
114 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
115 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
|
116 break; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
117 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
118 } |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
119 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
120 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
121 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
|
122 if (!(large = ngx_palloc(pool, sizeof(ngx_pool_large_t)))) { |
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
123 return NULL; |
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
124 } |
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
125 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
126 large->next = NULL; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
127 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
128 |
347
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
129 #if 0 |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
130 if (!(p = ngx_memalign(ngx_pagesize, size, pool->log))) { |
194
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
131 return NULL; |
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
156
diff
changeset
|
132 } |
347
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
133 #else |
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
134 if (!(p = ngx_alloc(size, pool->log))) { |
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
135 return NULL; |
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
136 } |
f48d579daf78
nginx-0.0.3-2004-06-08-20:26:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
137 #endif |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
139 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
|
140 pool->large = large; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
141 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
142 } else if (last) { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
143 last->next = large; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
144 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
145 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
146 large->alloc = p; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
147 |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
148 return p; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
149 } |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
150 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
151 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
152 void ngx_pfree(ngx_pool_t *pool, void *p) |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
153 { |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
154 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
|
155 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
156 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
|
157 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
|
158 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, |
267
83205e0b5522
nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
257
diff
changeset
|
159 "free: " PTR_FMT, l->alloc); |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
160 free(l->alloc); |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
161 l->alloc = NULL; |
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
162 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
163 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
164 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
165 |
156
afc333135a6b
nginx-0.0.1-2003-10-23-10:13:16 import
Igor Sysoev <igor@sysoev.ru>
parents:
133
diff
changeset
|
166 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
167 void *ngx_pcalloc(ngx_pool_t *pool, size_t size) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
168 { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
169 void *p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
170 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
171 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
|
172 if (p) { |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
173 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
|
174 } |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
176 return p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
177 } |
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
178 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
179 #if 0 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
180 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
181 static void *ngx_get_cached_block(size_t size) |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
182 { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
183 void *p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
184 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
|
185 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
186 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
|
187 return NULL; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
188 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
189 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
190 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
|
191 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
192 slot->tries++; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
193 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
194 if (slot->number) { |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
195 p = slot->block; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
196 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
|
197 slot->number--; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
198 return p; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
199 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
200 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
201 return NULL; |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
202 } |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
203 |
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
204 #endif |