Mercurial > hg > nginx
annotate src/core/ngx_palloc.c @ 5036:6e374742043e stable-1.2
Merge of r4944: removed GLOB_NOSORT glob option.
This will result in alphabetical sorting of included files if
the "include" directive with wildcards is used.
Note that the behaviour is now different from that on Windows, where
alphabetical sorting is not guaranteed for FindFirsFile()/FindNextFile()
(used to be alphabetical on NTFS, but not on FAT).
Approved by Igor Sysoev, prodded by many.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Sat, 09 Feb 2013 21:27:37 +0000 |
| parents | d620f497c50f |
| children | 320abeb364e6 |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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11 |
| 2049 | 12 static void *ngx_palloc_block(ngx_pool_t *pool, size_t size); |
| 13 static void *ngx_palloc_large(ngx_pool_t *pool, size_t size); | |
| 14 | |
| 15 | |
| 501 | 16 ngx_pool_t * |
| 17 ngx_create_pool(size_t size, ngx_log_t *log) | |
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18 { |
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19 ngx_pool_t *p; |
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20 |
| 3388 | 21 p = ngx_memalign(NGX_POOL_ALIGNMENT, size, log); |
| 501 | 22 if (p == NULL) { |
| 527 | 23 return NULL; |
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24 } |
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25 |
| 2049 | 26 p->d.last = (u_char *) p + sizeof(ngx_pool_t); |
| 27 p->d.end = (u_char *) p + size; | |
| 28 p->d.next = NULL; | |
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29 p->d.failed = 0; |
| 2049 | 30 |
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31 size = size - sizeof(ngx_pool_t); |
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32 p->max = (size < NGX_MAX_ALLOC_FROM_POOL) ? size : NGX_MAX_ALLOC_FROM_POOL; |
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33 |
| 581 | 34 p->current = p; |
| 35 p->chain = NULL; | |
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36 p->large = NULL; |
| 509 | 37 p->cleanup = NULL; |
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38 p->log = log; |
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39 |
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40 return p; |
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41 } |
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42 |
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43 |
| 501 | 44 void |
| 45 ngx_destroy_pool(ngx_pool_t *pool) | |
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46 { |
| 509 | 47 ngx_pool_t *p, *n; |
| 48 ngx_pool_large_t *l; | |
| 49 ngx_pool_cleanup_t *c; | |
| 50 | |
| 51 for (c = pool->cleanup; c; c = c->next) { | |
| 52 if (c->handler) { | |
| 1744 | 53 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, |
| 54 "run cleanup: %p", c); | |
| 509 | 55 c->handler(c->data); |
| 56 } | |
| 57 } | |
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58 |
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59 for (l = pool->large; l; l = l->next) { |
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60 |
| 461 | 61 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, "free: %p", l->alloc); |
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62 |
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63 if (l->alloc) { |
| 477 | 64 ngx_free(l->alloc); |
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65 } |
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66 } |
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67 |
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68 #if (NGX_DEBUG) |
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69 |
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70 /* |
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71 * we could allocate the pool->log from this pool |
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72 * so we cannot use this log while free()ing the pool |
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73 */ |
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74 |
| 2049 | 75 for (p = pool, n = pool->d.next; /* void */; p = n, n = n->d.next) { |
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76 ngx_log_debug2(NGX_LOG_DEBUG_ALLOC, pool->log, 0, |
| 2049 | 77 "free: %p, unused: %uz", p, p->d.end - p->d.last); |
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78 |
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79 if (n == NULL) { |
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80 break; |
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81 } |
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82 } |
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83 |
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84 #endif |
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85 |
| 2049 | 86 for (p = pool, n = pool->d.next; /* void */; p = n, n = n->d.next) { |
| 477 | 87 ngx_free(p); |
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88 |
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89 if (n == NULL) { |
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90 break; |
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91 } |
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92 } |
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93 } |
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94 |
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95 |
| 2337 | 96 void |
| 97 ngx_reset_pool(ngx_pool_t *pool) | |
| 98 { | |
| 99 ngx_pool_t *p; | |
| 100 ngx_pool_large_t *l; | |
| 101 | |
| 102 for (l = pool->large; l; l = l->next) { | |
| 103 if (l->alloc) { | |
| 104 ngx_free(l->alloc); | |
| 105 } | |
| 106 } | |
| 107 | |
| 108 pool->large = NULL; | |
| 109 | |
| 110 for (p = pool; p; p = p->d.next) { | |
| 111 p->d.last = (u_char *) p + sizeof(ngx_pool_t); | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 | |
| 501 | 116 void * |
| 117 ngx_palloc(ngx_pool_t *pool, size_t size) | |
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118 { |
| 2049 | 119 u_char *m; |
| 120 ngx_pool_t *p; | |
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121 |
| 2049 | 122 if (size <= pool->max) { |
| 123 | |
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124 p = pool->current; |
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125 |
| 2049 | 126 do { |
| 127 m = ngx_align_ptr(p->d.last, NGX_ALIGNMENT); | |
| 589 | 128 |
| 2049 | 129 if ((size_t) (p->d.end - m) >= size) { |
| 130 p->d.last = m + size; | |
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131 |
| 2049 | 132 return m; |
| 589 | 133 } |
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134 |
| 2049 | 135 p = p->d.next; |
| 136 | |
| 137 } while (p); | |
| 138 | |
| 139 return ngx_palloc_block(pool, size); | |
| 140 } | |
| 141 | |
| 142 return ngx_palloc_large(pool, size); | |
| 143 } | |
| 144 | |
| 145 | |
| 146 void * | |
| 147 ngx_pnalloc(ngx_pool_t *pool, size_t size) | |
| 148 { | |
| 149 u_char *m; | |
| 150 ngx_pool_t *p; | |
| 151 | |
| 152 if (size <= pool->max) { | |
| 153 | |
| 154 p = pool->current; | |
| 155 | |
| 156 do { | |
| 157 m = p->d.last; | |
| 158 | |
| 159 if ((size_t) (p->d.end - m) >= size) { | |
| 160 p->d.last = m + size; | |
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161 |
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162 return m; |
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163 } |
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164 |
| 2049 | 165 p = p->d.next; |
| 166 | |
| 167 } while (p); | |
| 168 | |
| 169 return ngx_palloc_block(pool, size); | |
| 170 } | |
| 171 | |
| 172 return ngx_palloc_large(pool, size); | |
| 173 } | |
| 174 | |
| 581 | 175 |
| 2049 | 176 static void * |
| 177 ngx_palloc_block(ngx_pool_t *pool, size_t size) | |
| 178 { | |
| 179 u_char *m; | |
| 2055 | 180 size_t psize; |
| 2049 | 181 ngx_pool_t *p, *new, *current; |
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182 |
| 2055 | 183 psize = (size_t) (pool->d.end - (u_char *) pool); |
| 184 | |
| 3388 | 185 m = ngx_memalign(NGX_POOL_ALIGNMENT, psize, pool->log); |
| 2056 | 186 if (m == NULL) { |
| 2049 | 187 return NULL; |
| 188 } | |
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189 |
| 2056 | 190 new = (ngx_pool_t *) m; |
| 191 | |
| 192 new->d.end = m + psize; | |
| 2055 | 193 new->d.next = NULL; |
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194 new->d.failed = 0; |
| 2055 | 195 |
| 2056 | 196 m += sizeof(ngx_pool_data_t); |
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197 m = ngx_align_ptr(m, NGX_ALIGNMENT); |
| 2056 | 198 new->d.last = m + size; |
| 199 | |
| 2049 | 200 current = pool->current; |
| 201 | |
| 202 for (p = current; p->d.next; p = p->d.next) { | |
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203 if (p->d.failed++ > 4) { |
| 2049 | 204 current = p->d.next; |
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205 } |
| 2049 | 206 } |
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207 |
| 2049 | 208 p->d.next = new; |
| 209 | |
| 210 pool->current = current ? current : new; | |
| 581 | 211 |
| 2049 | 212 return m; |
| 213 } | |
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214 |
| 2049 | 215 |
| 216 static void * | |
| 217 ngx_palloc_large(ngx_pool_t *pool, size_t size) | |
| 218 { | |
| 219 void *p; | |
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220 ngx_uint_t n; |
| 2049 | 221 ngx_pool_large_t *large; |
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222 |
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223 p = ngx_alloc(size, pool->log); |
| 501 | 224 if (p == NULL) { |
|
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225 return NULL; |
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226 } |
| 2129 | 227 |
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228 n = 0; |
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229 |
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230 for (large = pool->large; large; large = large->next) { |
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231 if (large->alloc == NULL) { |
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232 large->alloc = p; |
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233 return p; |
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234 } |
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235 |
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236 if (n++ > 3) { |
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237 break; |
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238 } |
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239 } |
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240 |
| 2129 | 241 large = ngx_palloc(pool, sizeof(ngx_pool_large_t)); |
| 242 if (large == NULL) { | |
| 243 ngx_free(p); | |
| 244 return NULL; | |
| 245 } | |
| 246 | |
| 247 large->alloc = p; | |
| 248 large->next = pool->large; | |
| 249 pool->large = large; | |
| 250 | |
| 251 return p; | |
| 252 } | |
| 253 | |
| 254 | |
| 255 void * | |
| 256 ngx_pmemalign(ngx_pool_t *pool, size_t size, size_t alignment) | |
| 257 { | |
| 258 void *p; | |
| 259 ngx_pool_large_t *large; | |
| 260 | |
| 261 p = ngx_memalign(alignment, size, pool->log); | |
| 262 if (p == NULL) { | |
| 263 return NULL; | |
| 264 } | |
|
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265 |
| 629 | 266 large = ngx_palloc(pool, sizeof(ngx_pool_large_t)); |
| 267 if (large == NULL) { | |
| 1317 | 268 ngx_free(p); |
| 629 | 269 return NULL; |
|
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270 } |
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271 |
|
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272 large->alloc = p; |
| 629 | 273 large->next = pool->large; |
| 274 pool->large = large; | |
|
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275 |
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276 return p; |
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277 } |
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278 |
|
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279 |
| 501 | 280 ngx_int_t |
| 281 ngx_pfree(ngx_pool_t *pool, void *p) | |
|
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282 { |
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283 ngx_pool_large_t *l; |
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284 |
|
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285 for (l = pool->large; l; l = l->next) { |
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286 if (p == l->alloc) { |
|
257
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287 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, pool->log, 0, |
| 461 | 288 "free: %p", l->alloc); |
| 477 | 289 ngx_free(l->alloc); |
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290 l->alloc = NULL; |
|
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291 |
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292 return NGX_OK; |
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293 } |
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294 } |
|
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295 |
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296 return NGX_DECLINED; |
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297 } |
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298 |
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299 |
| 501 | 300 void * |
| 301 ngx_pcalloc(ngx_pool_t *pool, size_t size) | |
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302 { |
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303 void *p; |
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304 |
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305 p = ngx_palloc(pool, size); |
|
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306 if (p) { |
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307 ngx_memzero(p, size); |
|
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308 } |
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309 |
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310 return p; |
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311 } |
|
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312 |
| 509 | 313 |
| 314 ngx_pool_cleanup_t * | |
| 563 | 315 ngx_pool_cleanup_add(ngx_pool_t *p, size_t size) |
| 509 | 316 { |
| 317 ngx_pool_cleanup_t *c; | |
| 318 | |
| 319 c = ngx_palloc(p, sizeof(ngx_pool_cleanup_t)); | |
| 320 if (c == NULL) { | |
| 321 return NULL; | |
| 322 } | |
| 323 | |
| 563 | 324 if (size) { |
| 325 c->data = ngx_palloc(p, size); | |
| 326 if (c->data == NULL) { | |
| 327 return NULL; | |
| 328 } | |
| 329 | |
| 330 } else { | |
| 331 c->data = NULL; | |
| 332 } | |
| 333 | |
| 334 c->handler = NULL; | |
| 509 | 335 c->next = p->cleanup; |
| 336 | |
| 337 p->cleanup = c; | |
| 338 | |
| 563 | 339 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, p->log, 0, "add cleanup: %p", c); |
| 340 | |
| 509 | 341 return c; |
| 342 } | |
| 343 | |
| 344 | |
| 345 void | |
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346 ngx_pool_run_cleanup_file(ngx_pool_t *p, ngx_fd_t fd) |
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347 { |
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348 ngx_pool_cleanup_t *c; |
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349 ngx_pool_cleanup_file_t *cf; |
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350 |
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351 for (c = p->cleanup; c; c = c->next) { |
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352 if (c->handler == ngx_pool_cleanup_file) { |
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353 |
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354 cf = c->data; |
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355 |
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356 if (cf->fd == fd) { |
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357 c->handler(cf); |
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358 c->handler = NULL; |
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359 return; |
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360 } |
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361 } |
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362 } |
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363 } |
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364 |
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365 |
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366 void |
| 509 | 367 ngx_pool_cleanup_file(void *data) |
| 368 { | |
| 369 ngx_pool_cleanup_file_t *c = data; | |
| 370 | |
| 1744 | 371 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, c->log, 0, "file cleanup: fd:%d", |
| 372 c->fd); | |
| 563 | 373 |
| 509 | 374 if (ngx_close_file(c->fd) == NGX_FILE_ERROR) { |
| 375 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, | |
| 376 ngx_close_file_n " \"%s\" failed", c->name); | |
| 377 } | |
| 378 } | |
| 379 | |
| 380 | |
|
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381 void |
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382 ngx_pool_delete_file(void *data) |
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383 { |
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384 ngx_pool_cleanup_file_t *c = data; |
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385 |
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386 ngx_err_t err; |
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387 |
| 1744 | 388 ngx_log_debug2(NGX_LOG_DEBUG_ALLOC, c->log, 0, "file cleanup: fd:%d %s", |
| 389 c->fd, c->name); | |
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390 |
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391 if (ngx_delete_file(c->name) == NGX_FILE_ERROR) { |
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392 err = ngx_errno; |
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393 |
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394 if (err != NGX_ENOENT) { |
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395 ngx_log_error(NGX_LOG_CRIT, c->log, err, |
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396 ngx_delete_file_n " \"%s\" failed", c->name); |
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397 } |
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398 } |
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399 |
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400 if (ngx_close_file(c->fd) == NGX_FILE_ERROR) { |
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401 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
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402 ngx_close_file_n " \"%s\" failed", c->name); |
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403 } |
|
4d203f76b757
undo "client_body_in_file_only any"
Igor Sysoev <igor@sysoev.ru>
parents:
931
diff
changeset
|
404 } |
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4d203f76b757
undo "client_body_in_file_only any"
Igor Sysoev <igor@sysoev.ru>
parents:
931
diff
changeset
|
405 |
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4d203f76b757
undo "client_body_in_file_only any"
Igor Sysoev <igor@sysoev.ru>
parents:
931
diff
changeset
|
406 |
|
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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changeset
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407 #if 0 |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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diff
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408 |
| 501 | 409 static void * |
| 410 ngx_get_cached_block(size_t size) | |
|
346
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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diff
changeset
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411 { |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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changeset
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412 void *p; |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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changeset
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413 ngx_cached_block_slot_t *slot; |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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changeset
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414 |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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415 if (ngx_cycle->cache == NULL) { |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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416 return NULL; |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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diff
changeset
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417 } |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
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418 |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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419 slot = &ngx_cycle->cache[(size + ngx_pagesize - 1) / ngx_pagesize]; |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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diff
changeset
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420 |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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changeset
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421 slot->tries++; |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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diff
changeset
|
422 |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
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423 if (slot->number) { |
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55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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changeset
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424 p = slot->block; |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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diff
changeset
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425 slot->block = slot->block->next; |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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diff
changeset
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426 slot->number--; |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
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parents:
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diff
changeset
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427 return p; |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
428 } |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
429 |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
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430 return NULL; |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
431 } |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
432 |
|
55e496a8ece3
nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
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changeset
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433 #endif |