Mercurial > hg > nginx-quic
annotate src/core/ngx_list.c @ 4515:8bb695c05870 stable-1.0
Merge of r4498:
Fix of rbtree lookup on hash collisions.
Previous code incorrectly assumed that nodes with identical keys are linked
together. This might not be true after tree rebalance.
Patch by Lanshun Zhou.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 05 Mar 2012 13:17:56 +0000 |
parents | 4919fb357a5d |
children | a82f305487c2 |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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Merge of r4406, r4413: copyrights updated.
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4 * Copyright (C) Nginx, Inc. |
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5 */ |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 |
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11 |
766 | 12 ngx_list_t * |
13 ngx_list_create(ngx_pool_t *pool, ngx_uint_t n, size_t size) | |
14 { | |
15 ngx_list_t *list; | |
16 | |
17 list = ngx_palloc(pool, sizeof(ngx_list_t)); | |
18 if (list == NULL) { | |
19 return NULL; | |
20 } | |
21 | |
22 list->part.elts = ngx_palloc(pool, n * size); | |
23 if (list->part.elts == NULL) { | |
24 return NULL; | |
25 } | |
26 | |
27 list->part.nelts = 0; | |
28 list->part.next = NULL; | |
29 list->last = &list->part; | |
30 list->size = size; | |
31 list->nalloc = n; | |
32 list->pool = pool; | |
33 | |
34 return list; | |
35 } | |
36 | |
37 | |
38 void * | |
39 ngx_list_push(ngx_list_t *l) | |
414
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40 { |
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41 void *elt; |
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42 ngx_list_part_t *last; |
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43 |
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44 last = l->last; |
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45 |
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46 if (last->nelts == l->nalloc) { |
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47 |
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48 /* the last part is full, allocate a new list part */ |
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49 |
501 | 50 last = ngx_palloc(l->pool, sizeof(ngx_list_part_t)); |
51 if (last == NULL) { | |
414
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52 return NULL; |
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53 } |
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501 | 55 last->elts = ngx_palloc(l->pool, l->nalloc * l->size); |
56 if (last->elts == NULL) { | |
414
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57 return NULL; |
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58 } |
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59 |
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60 last->nelts = 0; |
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61 last->next = NULL; |
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62 |
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63 l->last->next = last; |
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64 l->last = last; |
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65 } |
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66 |
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67 elt = (char *) last->elts + l->size * last->nelts; |
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68 last->nelts++; |
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69 |
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70 return elt; |
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71 } |