Mercurial > hg > nginx-quic
annotate src/core/ngx_list.c @ 4423:196c3dacff0d
Fixed memory leak on HUP signal when PCRE JIT was used.
The PCRE JIT compiler uses mmap to allocate memory for its executable codes, so
we have to explicitly call the pcre_free_study() function to free this memory.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Mon, 30 Jan 2012 12:53:57 +0000 |
parents | d620f497c50f |
children | a82f305487c2 |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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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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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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54 |
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 } |