Mercurial > hg > nginx
annotate src/core/ngx_alloc.c @ 4:c5f071d376e5
nginx-0.0.1-2002-08-22-19:24:03 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 22 Aug 2002 15:24:03 +0000 |
parents | 4eff17414a43 |
children | 669801705ab1 |
rev | line source |
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0
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nginx-0.0.1-2002-08-06-20:39:45 import
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1 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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2 #include <ngx_config.h> |
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nginx-0.0.1-2002-08-06-20:39:45 import
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3 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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4 #include <ngx_errno.h> |
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nginx-0.0.1-2002-08-06-20:39:45 import
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5 #include <ngx_log.h> |
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nginx-0.0.1-2002-08-06-20:39:45 import
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6 #include <ngx_alloc.h> |
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nginx-0.0.1-2002-08-06-20:39:45 import
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7 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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8 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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9 void *ngx_alloc(size_t size, ngx_log_t *log) |
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nginx-0.0.1-2002-08-06-20:39:45 import
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10 { |
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nginx-0.0.1-2002-08-06-20:39:45 import
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11 void *p; |
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12 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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13 p = malloc(size); |
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nginx-0.0.1-2002-08-06-20:39:45 import
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14 if (p == NULL) |
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nginx-0.0.1-2002-08-22-19:24:03 import
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15 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
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16 "ngx_alloc: malloc() %d bytes failed", size); |
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nginx-0.0.1-2002-08-06-20:39:45 import
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17 return p; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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18 } |
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19 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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20 void *ngx_calloc(size_t size, ngx_log_t *log) |
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21 { |
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22 void *p; |
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23 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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24 p = ngx_alloc(size, log); |
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25 if (p) |
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nginx-0.0.1-2002-08-06-20:39:45 import
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26 ngx_memzero(p, size); |
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27 |
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28 return p; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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29 } |
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30 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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31 ngx_pool_t *ngx_create_pool(size_t size, ngx_log_t *log) |
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nginx-0.0.1-2002-08-06-20:39:45 import
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32 { |
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nginx-0.0.1-2002-08-06-20:39:45 import
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33 ngx_pool_t *p; |
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34 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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35 ngx_test_null(p, ngx_alloc(size, log), NULL); |
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36 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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37 p->last = (char *) p + sizeof(ngx_pool_t); |
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nginx-0.0.1-2002-08-06-20:39:45 import
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38 p->end = (char *) p + size; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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39 p->next = NULL; |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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40 p->large = NULL; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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41 p->log = log; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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42 |
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43 return p; |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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44 } |
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nginx-0.0.1-2002-08-06-20:39:45 import
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45 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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46 void ngx_destroy_pool(ngx_pool_t *pool) |
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nginx-0.0.1-2002-08-06-20:39:45 import
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47 { |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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48 ngx_pool_t *p, *n; |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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49 ngx_pool_large_t *l; |
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50 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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51 for (l = pool->large; l; l = l->next) |
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nginx-0.0.1-2002-08-06-20:39:45 import
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52 free(l->alloc); |
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53 |
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54 for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { |
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nginx-0.0.1-2002-08-06-20:39:45 import
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55 free(p); |
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56 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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57 if (n == NULL) |
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nginx-0.0.1-2002-08-06-20:39:45 import
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58 break; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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59 } |
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nginx-0.0.1-2002-08-06-20:39:45 import
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60 } |
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61 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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62 void *ngx_palloc(ngx_pool_t *pool, size_t size) |
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63 { |
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nginx-0.0.1-2002-08-06-20:39:45 import
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64 void *m; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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65 ngx_pool_t *p, *n; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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66 ngx_pool_large_t *large, *last; |
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67 |
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68 if (size <= NGX_MAX_ALLOC_FROM_POOL) { |
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nginx-0.0.1-2002-08-06-20:39:45 import
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69 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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70 for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { |
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nginx-0.0.1-2002-08-06-20:39:45 import
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71 if ((size_t) (p->end - p->last) >= size) { |
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nginx-0.0.1-2002-08-06-20:39:45 import
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72 m = p->last; |
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73 p->last += size; |
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74 |
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75 return m; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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76 } |
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nginx-0.0.1-2002-08-06-20:39:45 import
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77 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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78 if (n == NULL) |
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79 break; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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80 } |
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nginx-0.0.1-2002-08-06-20:39:45 import
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81 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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82 /* alloc new pool block */ |
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83 ngx_test_null(n, ngx_create_pool(p->end - (char *) p, p->log), NULL); |
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nginx-0.0.1-2002-08-06-20:39:45 import
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84 p->next = n; |
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85 m = n->last; |
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86 n->last += size; |
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87 return m; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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88 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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89 /* alloc large block */ |
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90 } else { |
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nginx-0.0.1-2002-08-06-20:39:45 import
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91 large = NULL; |
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92 last = NULL; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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93 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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94 if (pool->large) { |
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95 for (last = pool->large; /* void */; last = last->next) { |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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96 if (last->alloc == NULL) { |
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97 large = last; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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98 last = NULL; |
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99 break; |
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100 } |
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nginx-0.0.1-2002-08-06-20:39:45 import
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101 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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102 if (last->next == NULL) |
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103 break; |
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104 } |
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105 } |
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106 |
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Igor Sysoev <igor@sysoev.ru>
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107 if (large == NULL) { |
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108 ngx_test_null(large, ngx_palloc(pool, sizeof(ngx_pool_large_t)), |
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nginx-0.0.1-2002-08-06-20:39:45 import
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109 NULL); |
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110 } |
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111 |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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112 ngx_test_null(p, ngx_alloc(size, pool->log), NULL); |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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113 |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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114 if (pool->large == NULL) { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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115 pool->large = large; |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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116 |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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117 } else if (last) { |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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118 last->next = large; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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119 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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120 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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121 large->alloc = p; |
4eff17414a43
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Igor Sysoev <igor@sysoev.ru>
parents:
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122 |
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Igor Sysoev <igor@sysoev.ru>
parents:
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123 return p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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|
124 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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|
125 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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|
126 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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127 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
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|
128 { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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129 void *p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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|
130 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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131 p = ngx_palloc(pool, size); |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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|
132 if (p) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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|
133 ngx_memzero(p, size); |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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|
135 return p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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136 } |