Mercurial > hg > nginx
annotate src/core/ngx_alloc.c @ 10:4f3879d9b6f6
nginx-0.0.1-2002-09-11-19:18:33 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 11 Sep 2002 15:18:33 +0000 |
parents | b5481d6fbbd4 |
children | 53cb81681040 |
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-0.0.1-2002-08-26-19:18:19 import
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15 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
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nginx-0.0.1-2002-08-26-19:18:19 import
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16 "malloc() %d bytes failed", size); |
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nginx-0.0.1-2002-08-29-20:59:54 import
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17 |
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nginx-0.0.1-2002-09-11-19:18:33 import
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18 ngx_log_debug(log, "malloc: %x:%d" _ p _ size); |
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19 |
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20 return p; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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21 } |
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22 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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23 void *ngx_calloc(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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24 { |
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Igor Sysoev <igor@sysoev.ru>
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25 void *p; |
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26 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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27 p = ngx_alloc(size, log); |
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28 if (p) |
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nginx-0.0.1-2002-08-06-20:39:45 import
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29 ngx_memzero(p, size); |
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30 |
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31 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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32 } |
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nginx-0.0.1-2002-08-06-20:39:45 import
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33 |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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34 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
Igor Sysoev <igor@sysoev.ru>
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35 { |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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36 ngx_pool_t *p; |
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37 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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38 ngx_test_null(p, ngx_alloc(size, log), NULL); |
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nginx-0.0.1-2002-08-06-20:39:45 import
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39 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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40 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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41 p->end = (char *) p + size; |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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42 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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43 p->large = 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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44 p->log = log; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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45 |
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46 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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47 } |
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nginx-0.0.1-2002-08-06-20:39:45 import
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48 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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49 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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50 { |
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nginx-0.0.1-2002-08-06-20:39:45 import
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51 ngx_pool_t *p, *n; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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52 ngx_pool_large_t *l; |
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53 |
10
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nginx-0.0.1-2002-09-11-19:18:33 import
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54 for (l = pool->large; l; l = l->next) { |
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nginx-0.0.1-2002-09-11-19:18:33 import
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55 ngx_log_debug(pool->log, "free: %x" _ l->alloc); |
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nginx-0.0.1-2002-08-06-20:39:45 import
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56 free(l->alloc); |
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57 } |
0
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58 |
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59 for (p = pool, n = pool->next; /* void */; p = n, n = n->next) { |
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60 ngx_log_debug(pool->log, "free: %x" _ p); |
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61 free(p); |
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62 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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63 if (n == NULL) |
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64 break; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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65 } |
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nginx-0.0.1-2002-08-06-20:39:45 import
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66 } |
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67 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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68 void *ngx_palloc(ngx_pool_t *pool, size_t size) |
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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 void *m; |
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71 ngx_pool_t *p, *n; |
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72 ngx_pool_large_t *large, *last; |
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73 |
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74 if (size <= NGX_MAX_ALLOC_FROM_POOL) { |
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75 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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76 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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77 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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78 m = p->last; |
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79 p->last += size; |
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80 |
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81 return m; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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82 } |
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83 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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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 /* alloc new pool block */ |
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nginx-0.0.1-2002-08-06-20:39:45 import
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89 ngx_test_null(n, ngx_create_pool(p->end - (char *) p, p->log), NULL); |
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90 p->next = n; |
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91 m = n->last; |
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92 n->last += size; |
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93 return m; |
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nginx-0.0.1-2002-08-06-20:39:45 import
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94 |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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95 /* alloc large block */ |
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96 } else { |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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97 large = NULL; |
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98 last = NULL; |
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99 |
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Igor Sysoev <igor@sysoev.ru>
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100 if (pool->large) { |
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101 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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102 if (last->alloc == NULL) { |
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103 large = last; |
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104 last = NULL; |
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105 break; |
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106 } |
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107 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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108 if (last->next == NULL) |
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109 break; |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
110 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
111 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
112 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
113 if (large == NULL) { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
114 ngx_test_null(large, ngx_palloc(pool, sizeof(ngx_pool_large_t)), |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
115 NULL); |
10
4f3879d9b6f6
nginx-0.0.1-2002-09-11-19:18:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
116 large->next = NULL; |
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 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
119 ngx_test_null(p, ngx_alloc(size, pool->log), NULL); |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
120 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
121 if (pool->large == NULL) { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
122 pool->large = large; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
123 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
124 } else if (last) { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
125 last->next = large; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
126 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 large->alloc = p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
130 return p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
131 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
132 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
133 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 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
|
135 { |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
136 void *p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
137 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 p = ngx_palloc(pool, size); |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 if (p) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 ngx_memzero(p, size); |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
142 return p; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
143 } |