Mercurial > hg > nginx-quic
annotate src/core/ngx_slab.c @ 6776:1bf4f21b1b72
Core: show file contents only once while dumping configuration.
Files are considered the same if the path used by nginx during parsing matches.
author | Vladimir Homutov <vl@nginx.com> |
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date | Tue, 18 Oct 2016 16:33:38 +0300 |
parents | f01ab2dbcfdc |
children | ea76a3aa18ae |
rev | line source |
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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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5 */ |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 |
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10 |
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11 #define NGX_SLAB_PAGE_MASK 3 |
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12 #define NGX_SLAB_PAGE 0 |
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13 #define NGX_SLAB_BIG 1 |
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14 #define NGX_SLAB_EXACT 2 |
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15 #define NGX_SLAB_SMALL 3 |
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16 |
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17 #if (NGX_PTR_SIZE == 4) |
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18 |
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19 #define NGX_SLAB_PAGE_FREE 0 |
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20 #define NGX_SLAB_PAGE_BUSY 0xffffffff |
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21 #define NGX_SLAB_PAGE_START 0x80000000 |
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22 |
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23 #define NGX_SLAB_SHIFT_MASK 0x0000000f |
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24 #define NGX_SLAB_MAP_MASK 0xffff0000 |
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25 #define NGX_SLAB_MAP_SHIFT 16 |
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26 |
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27 #define NGX_SLAB_BUSY 0xffffffff |
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28 |
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29 #else /* (NGX_PTR_SIZE == 8) */ |
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30 |
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31 #define NGX_SLAB_PAGE_FREE 0 |
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32 #define NGX_SLAB_PAGE_BUSY 0xffffffffffffffff |
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33 #define NGX_SLAB_PAGE_START 0x8000000000000000 |
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34 |
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35 #define NGX_SLAB_SHIFT_MASK 0x000000000000000f |
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36 #define NGX_SLAB_MAP_MASK 0xffffffff00000000 |
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37 #define NGX_SLAB_MAP_SHIFT 32 |
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38 |
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39 #define NGX_SLAB_BUSY 0xffffffffffffffff |
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40 |
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41 #endif |
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42 |
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43 |
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44 #if (NGX_DEBUG_MALLOC) |
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45 |
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46 #define ngx_slab_junk(p, size) ngx_memset(p, 0xA5, size) |
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47 |
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48 #elif (NGX_HAVE_DEBUG_MALLOC) |
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49 |
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50 #define ngx_slab_junk(p, size) \ |
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51 if (ngx_debug_malloc) ngx_memset(p, 0xA5, size) |
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52 |
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53 #else |
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54 |
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55 #define ngx_slab_junk(p, size) |
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56 |
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57 #endif |
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58 |
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59 static ngx_slab_page_t *ngx_slab_alloc_pages(ngx_slab_pool_t *pool, |
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60 ngx_uint_t pages); |
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61 static void ngx_slab_free_pages(ngx_slab_pool_t *pool, ngx_slab_page_t *page, |
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62 ngx_uint_t pages); |
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63 static void ngx_slab_error(ngx_slab_pool_t *pool, ngx_uint_t level, |
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64 char *text); |
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65 |
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66 |
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67 static ngx_uint_t ngx_slab_max_size; |
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68 static ngx_uint_t ngx_slab_exact_size; |
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69 static ngx_uint_t ngx_slab_exact_shift; |
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70 |
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71 |
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72 void |
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73 ngx_slab_init(ngx_slab_pool_t *pool) |
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74 { |
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75 u_char *p; |
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76 size_t size; |
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77 ngx_int_t m; |
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78 ngx_uint_t i, n, pages; |
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79 ngx_slab_page_t *slots; |
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80 |
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81 /* STUB */ |
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82 if (ngx_slab_max_size == 0) { |
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83 ngx_slab_max_size = ngx_pagesize / 2; |
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84 ngx_slab_exact_size = ngx_pagesize / (8 * sizeof(uintptr_t)); |
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85 for (n = ngx_slab_exact_size; n >>= 1; ngx_slab_exact_shift++) { |
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86 /* void */ |
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87 } |
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88 } |
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89 /**/ |
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90 |
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91 pool->min_size = 1 << pool->min_shift; |
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92 |
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93 p = (u_char *) pool + sizeof(ngx_slab_pool_t); |
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94 size = pool->end - p; |
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95 |
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96 ngx_slab_junk(p, size); |
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97 |
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98 slots = (ngx_slab_page_t *) p; |
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99 n = ngx_pagesize_shift - pool->min_shift; |
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100 |
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101 for (i = 0; i < n; i++) { |
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102 slots[i].slab = 0; |
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103 slots[i].next = &slots[i]; |
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104 slots[i].prev = 0; |
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105 } |
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106 |
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107 p += n * sizeof(ngx_slab_page_t); |
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108 |
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109 pages = (ngx_uint_t) (size / (ngx_pagesize + sizeof(ngx_slab_page_t))); |
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110 |
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111 ngx_memzero(p, pages * sizeof(ngx_slab_page_t)); |
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112 |
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113 pool->pages = (ngx_slab_page_t *) p; |
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114 |
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115 pool->free.prev = 0; |
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116 pool->free.next = (ngx_slab_page_t *) p; |
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117 |
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118 pool->pages->slab = pages; |
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119 pool->pages->next = &pool->free; |
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120 pool->pages->prev = (uintptr_t) &pool->free; |
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121 |
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122 pool->start = (u_char *) |
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d0e8c81d3bb7
fix slab allocator on 64-bit platfroms
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parents:
967
diff
changeset
|
123 ngx_align_ptr((uintptr_t) p + pages * sizeof(ngx_slab_page_t), |
860
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|
124 ngx_pagesize); |
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125 |
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126 m = pages - (pool->end - pool->start) / ngx_pagesize; |
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127 if (m > 0) { |
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128 pages -= m; |
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129 pool->pages->slab = pages; |
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130 } |
2611
2bce3f6416c6
improve ngx_slab_alloc() error logging
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parents:
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diff
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131 |
5718
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
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132 pool->last = pool->pages + pages; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
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133 |
5634
5024d29354f1
Core: slab log_nomem flag.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5362
diff
changeset
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134 pool->log_nomem = 1; |
2611
2bce3f6416c6
improve ngx_slab_alloc() error logging
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parents:
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diff
changeset
|
135 pool->log_ctx = &pool->zero; |
2bce3f6416c6
improve ngx_slab_alloc() error logging
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parents:
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diff
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|
136 pool->zero = '\0'; |
860
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137 } |
357
e260514b9ad4
nginx-0.0.7-2004-06-16-23:36:07 import
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parents:
diff
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|
138 |
e260514b9ad4
nginx-0.0.7-2004-06-16-23:36:07 import
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diff
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|
139 |
860
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140 void * |
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141 ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size) |
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142 { |
966
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parents:
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diff
changeset
|
143 void *p; |
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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diff
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|
144 |
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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parents:
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diff
changeset
|
145 ngx_shmtx_lock(&pool->mutex); |
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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parents:
881
diff
changeset
|
146 |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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diff
changeset
|
147 p = ngx_slab_alloc_locked(pool, size); |
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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|
148 |
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diff
changeset
|
149 ngx_shmtx_unlock(&pool->mutex); |
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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parents:
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diff
changeset
|
150 |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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parents:
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diff
changeset
|
151 return p; |
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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|
152 } |
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153 |
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154 |
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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diff
changeset
|
155 void * |
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diff
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|
156 ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size) |
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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diff
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|
157 { |
860
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158 size_t s; |
881
5ed08a4c3bd3
fix building on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
159 uintptr_t p, n, m, mask, *bitmap; |
5ed08a4c3bd3
fix building on 64-bit platforms
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parents:
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diff
changeset
|
160 ngx_uint_t i, slot, shift, map; |
860
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|
161 ngx_slab_page_t *page, *prev, *slots; |
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162 |
5766
abdb027be9d5
Core: bugfix for the ngx_slab_max_size case.
Jianjun Zheng <codeeply@gmail.com>
parents:
5726
diff
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|
163 if (size > ngx_slab_max_size) { |
860
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164 |
966
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diff
changeset
|
165 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, ngx_cycle->log, 0, |
967 | 166 "slab alloc: %uz", size); |
966
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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parents:
881
diff
changeset
|
167 |
4829
40de49cf6b37
Fixed overflow if ngx_slab_alloc() is called with very big "size" argument.
Ruslan Ermilov <ru@nginx.com>
parents:
4764
diff
changeset
|
168 page = ngx_slab_alloc_pages(pool, (size >> ngx_pagesize_shift) |
40de49cf6b37
Fixed overflow if ngx_slab_alloc() is called with very big "size" argument.
Ruslan Ermilov <ru@nginx.com>
parents:
4764
diff
changeset
|
169 + ((size % ngx_pagesize) ? 1 : 0)); |
860
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170 if (page) { |
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171 p = (page - pool->pages) << ngx_pagesize_shift; |
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172 p += (uintptr_t) pool->start; |
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173 |
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174 } else { |
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175 p = 0; |
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|
176 } |
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|
177 |
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178 goto done; |
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179 } |
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|
180 |
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|
181 if (size > pool->min_size) { |
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diff
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|
182 shift = 1; |
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diff
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|
183 for (s = size - 1; s >>= 1; shift++) { /* void */ } |
201d017ea470
slab allocator in shared memory
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parents:
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diff
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|
184 slot = shift - pool->min_shift; |
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|
185 |
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|
186 } else { |
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|
187 size = pool->min_size; |
201d017ea470
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|
188 shift = pool->min_shift; |
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|
189 slot = 0; |
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diff
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|
190 } |
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diff
changeset
|
191 |
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diff
changeset
|
192 ngx_log_debug2(NGX_LOG_DEBUG_ALLOC, ngx_cycle->log, 0, |
201d017ea470
slab allocator in shared memory
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diff
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|
193 "slab alloc: %uz slot: %ui", size, slot); |
201d017ea470
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diff
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|
194 |
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diff
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|
195 slots = (ngx_slab_page_t *) ((u_char *) pool + sizeof(ngx_slab_pool_t)); |
201d017ea470
slab allocator in shared memory
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diff
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|
196 page = slots[slot].next; |
201d017ea470
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changeset
|
197 |
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slab allocator in shared memory
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diff
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|
198 if (page->next != page) { |
201d017ea470
slab allocator in shared memory
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diff
changeset
|
199 |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
200 if (shift < ngx_slab_exact_shift) { |
860
201d017ea470
slab allocator in shared memory
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diff
changeset
|
201 |
201d017ea470
slab allocator in shared memory
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parents:
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diff
changeset
|
202 do { |
201d017ea470
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diff
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|
203 p = (page - pool->pages) << ngx_pagesize_shift; |
201d017ea470
slab allocator in shared memory
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diff
changeset
|
204 bitmap = (uintptr_t *) (pool->start + p); |
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diff
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|
205 |
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diff
changeset
|
206 map = (1 << (ngx_pagesize_shift - shift)) |
201d017ea470
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diff
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|
207 / (sizeof(uintptr_t) * 8); |
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slab allocator in shared memory
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diff
changeset
|
208 |
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slab allocator in shared memory
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diff
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|
209 for (n = 0; n < map; n++) { |
201d017ea470
slab allocator in shared memory
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diff
changeset
|
210 |
201d017ea470
slab allocator in shared memory
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diff
changeset
|
211 if (bitmap[n] != NGX_SLAB_BUSY) { |
201d017ea470
slab allocator in shared memory
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diff
changeset
|
212 |
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diff
changeset
|
213 for (m = 1, i = 0; m; m <<= 1, i++) { |
201d017ea470
slab allocator in shared memory
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diff
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|
214 if ((bitmap[n] & m)) { |
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|
215 continue; |
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|
216 } |
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|
217 |
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diff
changeset
|
218 bitmap[n] |= m; |
966
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many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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diff
changeset
|
219 |
715336c243e1
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parents:
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diff
changeset
|
220 i = ((n * sizeof(uintptr_t) * 8) << shift) |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
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parents:
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diff
changeset
|
221 + (i << shift); |
860
201d017ea470
slab allocator in shared memory
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|
222 |
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|
223 if (bitmap[n] == NGX_SLAB_BUSY) { |
201d017ea470
slab allocator in shared memory
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diff
changeset
|
224 for (n = n + 1; n < map; n++) { |
6474 | 225 if (bitmap[n] != NGX_SLAB_BUSY) { |
226 p = (uintptr_t) bitmap + i; | |
860
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slab allocator in shared memory
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227 |
6474 | 228 goto done; |
229 } | |
860
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|
230 } |
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changeset
|
231 |
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diff
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|
232 prev = (ngx_slab_page_t *) |
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diff
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|
233 (page->prev & ~NGX_SLAB_PAGE_MASK); |
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|
234 prev->next = page->next; |
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slab allocator in shared memory
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diff
changeset
|
235 page->next->prev = page->prev; |
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|
236 |
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changeset
|
237 page->next = NULL; |
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diff
changeset
|
238 page->prev = NGX_SLAB_SMALL; |
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|
239 } |
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|
240 |
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|
241 p = (uintptr_t) bitmap + i; |
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|
242 |
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|
243 goto done; |
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|
244 } |
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|
245 } |
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changeset
|
246 } |
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|
247 |
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diff
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|
248 page = page->next; |
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slab allocator in shared memory
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249 |
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|
250 } while (page); |
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251 |
966
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diff
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252 } else if (shift == ngx_slab_exact_shift) { |
860
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253 |
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|
254 do { |
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|
255 if (page->slab != NGX_SLAB_BUSY) { |
201d017ea470
slab allocator in shared memory
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|
256 |
201d017ea470
slab allocator in shared memory
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257 for (m = 1, i = 0; m; m <<= 1, i++) { |
201d017ea470
slab allocator in shared memory
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258 if ((page->slab & m)) { |
201d017ea470
slab allocator in shared memory
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|
259 continue; |
201d017ea470
slab allocator in shared memory
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|
260 } |
201d017ea470
slab allocator in shared memory
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|
261 |
201d017ea470
slab allocator in shared memory
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|
262 page->slab |= m; |
201d017ea470
slab allocator in shared memory
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|
263 |
201d017ea470
slab allocator in shared memory
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diff
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|
264 if (page->slab == NGX_SLAB_BUSY) { |
201d017ea470
slab allocator in shared memory
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|
265 prev = (ngx_slab_page_t *) |
201d017ea470
slab allocator in shared memory
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|
266 (page->prev & ~NGX_SLAB_PAGE_MASK); |
201d017ea470
slab allocator in shared memory
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|
267 prev->next = page->next; |
201d017ea470
slab allocator in shared memory
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parents:
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|
268 page->next->prev = page->prev; |
201d017ea470
slab allocator in shared memory
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|
269 |
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|
270 page->next = NULL; |
201d017ea470
slab allocator in shared memory
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271 page->prev = NGX_SLAB_EXACT; |
201d017ea470
slab allocator in shared memory
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|
272 } |
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|
273 |
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274 p = (page - pool->pages) << ngx_pagesize_shift; |
201d017ea470
slab allocator in shared memory
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275 p += i << shift; |
201d017ea470
slab allocator in shared memory
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276 p += (uintptr_t) pool->start; |
201d017ea470
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|
277 |
201d017ea470
slab allocator in shared memory
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|
278 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
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|
279 } |
201d017ea470
slab allocator in shared memory
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|
280 } |
201d017ea470
slab allocator in shared memory
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|
281 |
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|
282 page = page->next; |
201d017ea470
slab allocator in shared memory
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|
283 |
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slab allocator in shared memory
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|
284 } while (page); |
201d017ea470
slab allocator in shared memory
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285 |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
286 } else { /* shift > ngx_slab_exact_shift */ |
860
201d017ea470
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|
287 |
201d017ea470
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|
288 n = ngx_pagesize_shift - (page->slab & NGX_SLAB_SHIFT_MASK); |
201d017ea470
slab allocator in shared memory
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|
289 n = 1 << n; |
1016
d0e8c81d3bb7
fix slab allocator on 64-bit platfroms
Igor Sysoev <igor@sysoev.ru>
parents:
967
diff
changeset
|
290 n = ((uintptr_t) 1 << n) - 1; |
860
201d017ea470
slab allocator in shared memory
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|
291 mask = n << NGX_SLAB_MAP_SHIFT; |
201d017ea470
slab allocator in shared memory
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|
292 |
201d017ea470
slab allocator in shared memory
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|
293 do { |
201d017ea470
slab allocator in shared memory
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|
294 if ((page->slab & NGX_SLAB_MAP_MASK) != mask) { |
201d017ea470
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|
295 |
881
5ed08a4c3bd3
fix building on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
296 for (m = (uintptr_t) 1 << NGX_SLAB_MAP_SHIFT, i = 0; |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
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|
297 m & mask; |
201d017ea470
slab allocator in shared memory
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|
298 m <<= 1, i++) |
201d017ea470
slab allocator in shared memory
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|
299 { |
201d017ea470
slab allocator in shared memory
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|
300 if ((page->slab & m)) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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|
301 continue; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
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|
302 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
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changeset
|
303 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
304 page->slab |= m; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
305 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
306 if ((page->slab & NGX_SLAB_MAP_MASK) == mask) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
307 prev = (ngx_slab_page_t *) |
201d017ea470
slab allocator in shared memory
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parents:
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diff
changeset
|
308 (page->prev & ~NGX_SLAB_PAGE_MASK); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
309 prev->next = page->next; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
310 page->next->prev = page->prev; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
311 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
312 page->next = NULL; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
313 page->prev = NGX_SLAB_BIG; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
314 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
315 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
316 p = (page - pool->pages) << ngx_pagesize_shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
317 p += i << shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
318 p += (uintptr_t) pool->start; |
201d017ea470
slab allocator in shared memory
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diff
changeset
|
319 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
320 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
321 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
322 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
323 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
324 page = page->next; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
325 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
326 } while (page); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
327 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
328 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
329 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
330 page = ngx_slab_alloc_pages(pool, 1); |
201d017ea470
slab allocator in shared memory
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diff
changeset
|
331 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
332 if (page) { |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
333 if (shift < ngx_slab_exact_shift) { |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
334 p = (page - pool->pages) << ngx_pagesize_shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
335 bitmap = (uintptr_t *) (pool->start + p); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
336 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
337 s = 1 << shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
338 n = (1 << (ngx_pagesize_shift - shift)) / 8 / s; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
339 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
340 if (n == 0) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
341 n = 1; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
342 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
343 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
344 bitmap[0] = (2 << n) - 1; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
345 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
346 map = (1 << (ngx_pagesize_shift - shift)) / (sizeof(uintptr_t) * 8); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
347 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
348 for (i = 1; i < map; i++) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
349 bitmap[i] = 0; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
350 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
351 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
352 page->slab = shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
353 page->next = &slots[slot]; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
354 page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_SMALL; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
355 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
356 slots[slot].next = page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
357 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
358 p = ((page - pool->pages) << ngx_pagesize_shift) + s * n; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
359 p += (uintptr_t) pool->start; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
360 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
361 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
362 |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
363 } else if (shift == ngx_slab_exact_shift) { |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
364 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
365 page->slab = 1; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
366 page->next = &slots[slot]; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
367 page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_EXACT; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
368 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
369 slots[slot].next = page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
370 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
371 p = (page - pool->pages) << ngx_pagesize_shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
372 p += (uintptr_t) pool->start; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
373 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
374 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
375 |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
376 } else { /* shift > ngx_slab_exact_shift */ |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
377 |
881
5ed08a4c3bd3
fix building on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
860
diff
changeset
|
378 page->slab = ((uintptr_t) 1 << NGX_SLAB_MAP_SHIFT) | shift; |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
379 page->next = &slots[slot]; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
380 page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_BIG; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
381 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
382 slots[slot].next = page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
383 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
384 p = (page - pool->pages) << ngx_pagesize_shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
385 p += (uintptr_t) pool->start; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
386 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
387 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
388 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
389 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
390 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
391 p = 0; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
392 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
393 done: |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
394 |
6480 | 395 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, ngx_cycle->log, 0, |
396 "slab alloc: %p", (void *) p); | |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
397 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
398 return (void *) p; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
399 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
400 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
401 |
5726
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
402 void * |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
403 ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size) |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
404 { |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
405 void *p; |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
406 |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
407 ngx_shmtx_lock(&pool->mutex); |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
408 |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
409 p = ngx_slab_calloc_locked(pool, size); |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
410 |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
411 ngx_shmtx_unlock(&pool->mutex); |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
412 |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
413 return p; |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
414 } |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
415 |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
416 |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
417 void * |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
418 ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size) |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
419 { |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
420 void *p; |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
421 |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
422 p = ngx_slab_alloc_locked(pool, size); |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
423 if (p) { |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
424 ngx_memzero(p, size); |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
425 } |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
426 |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
427 return p; |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
428 } |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
429 |
25ade23cf281
Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().
Ruslan Ermilov <ru@nginx.com>
parents:
5718
diff
changeset
|
430 |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
431 void |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
432 ngx_slab_free(ngx_slab_pool_t *pool, void *p) |
357
e260514b9ad4
nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
433 { |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
434 ngx_shmtx_lock(&pool->mutex); |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
435 |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
436 ngx_slab_free_locked(pool, p); |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
437 |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
438 ngx_shmtx_unlock(&pool->mutex); |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
439 } |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
440 |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
441 |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
442 void |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
443 ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p) |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
444 { |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
445 size_t size; |
1018
06306a20b8bb
fix slab allocator on 64-bit platfroms
Igor Sysoev <igor@sysoev.ru>
parents:
1016
diff
changeset
|
446 uintptr_t slab, m, *bitmap; |
06306a20b8bb
fix slab allocator on 64-bit platfroms
Igor Sysoev <igor@sysoev.ru>
parents:
1016
diff
changeset
|
447 ngx_uint_t n, type, slot, shift, map; |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
448 ngx_slab_page_t *slots, *page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
449 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
450 ngx_log_debug1(NGX_LOG_DEBUG_ALLOC, ngx_cycle->log, 0, "slab free: %p", p); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
451 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
452 if ((u_char *) p < pool->start || (u_char *) p > pool->end) { |
2611
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
453 ngx_slab_error(pool, NGX_LOG_ALERT, "ngx_slab_free(): outside of pool"); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
454 goto fail; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
455 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
456 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
457 n = ((u_char *) p - pool->start) >> ngx_pagesize_shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
458 page = &pool->pages[n]; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
459 slab = page->slab; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
460 type = page->prev & NGX_SLAB_PAGE_MASK; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
461 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
462 switch (type) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
463 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
464 case NGX_SLAB_SMALL: |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
465 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
466 shift = slab & NGX_SLAB_SHIFT_MASK; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
467 size = 1 << shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
468 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
469 if ((uintptr_t) p & (size - 1)) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
470 goto wrong_chunk; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
471 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
472 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
473 n = ((uintptr_t) p & (ngx_pagesize - 1)) >> shift; |
1016
d0e8c81d3bb7
fix slab allocator on 64-bit platfroms
Igor Sysoev <igor@sysoev.ru>
parents:
967
diff
changeset
|
474 m = (uintptr_t) 1 << (n & (sizeof(uintptr_t) * 8 - 1)); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
475 n /= (sizeof(uintptr_t) * 8); |
5362
79b9101cecf4
Handling of ngx_int_t != intptr_t case.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4829
diff
changeset
|
476 bitmap = (uintptr_t *) |
79b9101cecf4
Handling of ngx_int_t != intptr_t case.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4829
diff
changeset
|
477 ((uintptr_t) p & ~((uintptr_t) ngx_pagesize - 1)); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
478 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
479 if (bitmap[n] & m) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
480 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
481 if (page->next == NULL) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
482 slots = (ngx_slab_page_t *) |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
483 ((u_char *) pool + sizeof(ngx_slab_pool_t)); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
484 slot = shift - pool->min_shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
485 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
486 page->next = slots[slot].next; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
487 slots[slot].next = page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
488 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
489 page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_SMALL; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
490 page->next->prev = (uintptr_t) page | NGX_SLAB_SMALL; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
491 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
492 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
493 bitmap[n] &= ~m; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
494 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
495 n = (1 << (ngx_pagesize_shift - shift)) / 8 / (1 << shift); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
496 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
497 if (n == 0) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
498 n = 1; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
499 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
500 |
1016
d0e8c81d3bb7
fix slab allocator on 64-bit platfroms
Igor Sysoev <igor@sysoev.ru>
parents:
967
diff
changeset
|
501 if (bitmap[0] & ~(((uintptr_t) 1 << n) - 1)) { |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
502 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
503 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
504 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
505 map = (1 << (ngx_pagesize_shift - shift)) / (sizeof(uintptr_t) * 8); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
506 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
507 for (n = 1; n < map; n++) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
508 if (bitmap[n]) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
509 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
510 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
511 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
512 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
513 ngx_slab_free_pages(pool, page, 1); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
514 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
515 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
516 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
517 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
518 goto chunk_already_free; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
519 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
520 case NGX_SLAB_EXACT: |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
521 |
1016
d0e8c81d3bb7
fix slab allocator on 64-bit platfroms
Igor Sysoev <igor@sysoev.ru>
parents:
967
diff
changeset
|
522 m = (uintptr_t) 1 << |
d0e8c81d3bb7
fix slab allocator on 64-bit platfroms
Igor Sysoev <igor@sysoev.ru>
parents:
967
diff
changeset
|
523 (((uintptr_t) p & (ngx_pagesize - 1)) >> ngx_slab_exact_shift); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
524 size = ngx_slab_exact_size; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
525 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
526 if ((uintptr_t) p & (size - 1)) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
527 goto wrong_chunk; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
528 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
529 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
530 if (slab & m) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
531 if (slab == NGX_SLAB_BUSY) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
532 slots = (ngx_slab_page_t *) |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
533 ((u_char *) pool + sizeof(ngx_slab_pool_t)); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
534 slot = ngx_slab_exact_shift - pool->min_shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
535 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
536 page->next = slots[slot].next; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
537 slots[slot].next = page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
538 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
539 page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_EXACT; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
540 page->next->prev = (uintptr_t) page | NGX_SLAB_EXACT; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
541 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
542 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
543 page->slab &= ~m; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
544 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
545 if (page->slab) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
546 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
547 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
548 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
549 ngx_slab_free_pages(pool, page, 1); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
550 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
551 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
552 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
553 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
554 goto chunk_already_free; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
555 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
556 case NGX_SLAB_BIG: |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
557 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
558 shift = slab & NGX_SLAB_SHIFT_MASK; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
559 size = 1 << shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
560 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
561 if ((uintptr_t) p & (size - 1)) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
562 goto wrong_chunk; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
563 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
564 |
1016
d0e8c81d3bb7
fix slab allocator on 64-bit platfroms
Igor Sysoev <igor@sysoev.ru>
parents:
967
diff
changeset
|
565 m = (uintptr_t) 1 << ((((uintptr_t) p & (ngx_pagesize - 1)) >> shift) |
d0e8c81d3bb7
fix slab allocator on 64-bit platfroms
Igor Sysoev <igor@sysoev.ru>
parents:
967
diff
changeset
|
566 + NGX_SLAB_MAP_SHIFT); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
567 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
568 if (slab & m) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
569 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
570 if (page->next == NULL) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
571 slots = (ngx_slab_page_t *) |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
572 ((u_char *) pool + sizeof(ngx_slab_pool_t)); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
573 slot = shift - pool->min_shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
574 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
575 page->next = slots[slot].next; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
576 slots[slot].next = page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
577 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
578 page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_BIG; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
579 page->next->prev = (uintptr_t) page | NGX_SLAB_BIG; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
580 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
581 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
582 page->slab &= ~m; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
583 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
584 if (page->slab & NGX_SLAB_MAP_MASK) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
585 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
586 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
587 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
588 ngx_slab_free_pages(pool, page, 1); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
589 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
590 goto done; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
591 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
592 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
593 goto chunk_already_free; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
594 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
595 case NGX_SLAB_PAGE: |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
596 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
597 if ((uintptr_t) p & (ngx_pagesize - 1)) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
598 goto wrong_chunk; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
599 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
600 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
601 if (slab == NGX_SLAB_PAGE_FREE) { |
2611
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
602 ngx_slab_error(pool, NGX_LOG_ALERT, |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
603 "ngx_slab_free(): page is already free"); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
604 goto fail; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
605 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
606 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
607 if (slab == NGX_SLAB_PAGE_BUSY) { |
2611
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
608 ngx_slab_error(pool, NGX_LOG_ALERT, |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
609 "ngx_slab_free(): pointer to wrong page"); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
610 goto fail; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
611 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
612 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
613 n = ((u_char *) p - pool->start) >> ngx_pagesize_shift; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
614 size = slab & ~NGX_SLAB_PAGE_START; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
615 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
616 ngx_slab_free_pages(pool, &pool->pages[n], size); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
617 |
2711
6b87e875e87a
fix building by BCC without NGX_DEBUG_MALLOC
Igor Sysoev <igor@sysoev.ru>
parents:
2611
diff
changeset
|
618 ngx_slab_junk(p, size << ngx_pagesize_shift); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
619 |
2711
6b87e875e87a
fix building by BCC without NGX_DEBUG_MALLOC
Igor Sysoev <igor@sysoev.ru>
parents:
2611
diff
changeset
|
620 return; |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
621 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
622 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
623 /* not reached */ |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
624 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
625 return; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
626 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
627 done: |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
628 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
629 ngx_slab_junk(p, size); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
630 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
631 return; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
632 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
633 wrong_chunk: |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
634 |
2611
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
635 ngx_slab_error(pool, NGX_LOG_ALERT, |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
636 "ngx_slab_free(): pointer to wrong chunk"); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
637 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
638 goto fail; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
639 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
640 chunk_already_free: |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
641 |
2611
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
642 ngx_slab_error(pool, NGX_LOG_ALERT, |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
643 "ngx_slab_free(): chunk is already free"); |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
644 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
645 fail: |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
646 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
647 return; |
357
e260514b9ad4
nginx-0.0.7-2004-06-16-23:36:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
648 } |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
649 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
650 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
651 static ngx_slab_page_t * |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
652 ngx_slab_alloc_pages(ngx_slab_pool_t *pool, ngx_uint_t pages) |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
653 { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
654 ngx_slab_page_t *page, *p; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
655 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
656 for (page = pool->free.next; page != &pool->free; page = page->next) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
657 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
658 if (page->slab >= pages) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
659 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
660 if (page->slab > pages) { |
5718
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
661 page[page->slab - 1].prev = (uintptr_t) &page[pages]; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
662 |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
663 page[pages].slab = page->slab - pages; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
664 page[pages].next = page->next; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
665 page[pages].prev = page->prev; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
666 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
667 p = (ngx_slab_page_t *) page->prev; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
668 p->next = &page[pages]; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
669 page->next->prev = (uintptr_t) &page[pages]; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
670 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
671 } else { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
672 p = (ngx_slab_page_t *) page->prev; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
673 p->next = page->next; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
674 page->next->prev = page->prev; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
675 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
676 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
677 page->slab = pages | NGX_SLAB_PAGE_START; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
678 page->next = NULL; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
679 page->prev = NGX_SLAB_PAGE; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
680 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
681 if (--pages == 0) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
682 return page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
683 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
684 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
685 for (p = page + 1; pages; pages--) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
686 p->slab = NGX_SLAB_PAGE_BUSY; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
687 p->next = NULL; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
688 p->prev = NGX_SLAB_PAGE; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
689 p++; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
690 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
691 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
692 return page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
693 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
694 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
695 |
5634
5024d29354f1
Core: slab log_nomem flag.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5362
diff
changeset
|
696 if (pool->log_nomem) { |
5024d29354f1
Core: slab log_nomem flag.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5362
diff
changeset
|
697 ngx_slab_error(pool, NGX_LOG_CRIT, |
5024d29354f1
Core: slab log_nomem flag.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5362
diff
changeset
|
698 "ngx_slab_alloc() failed: no memory"); |
5024d29354f1
Core: slab log_nomem flag.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5362
diff
changeset
|
699 } |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
700 |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
701 return NULL; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
702 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
703 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
704 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
705 static void |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
706 ngx_slab_free_pages(ngx_slab_pool_t *pool, ngx_slab_page_t *page, |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
707 ngx_uint_t pages) |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
708 { |
5718
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
709 ngx_uint_t type; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
710 ngx_slab_page_t *prev, *join; |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
711 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
712 page->slab = pages--; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
713 |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
714 if (pages) { |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
715 ngx_memzero(&page[1], pages * sizeof(ngx_slab_page_t)); |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
716 } |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
717 |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
718 if (page->next) { |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
719 prev = (ngx_slab_page_t *) (page->prev & ~NGX_SLAB_PAGE_MASK); |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
720 prev->next = page->next; |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
721 page->next->prev = page->prev; |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
722 } |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
723 |
5718
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
724 join = page + page->slab; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
725 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
726 if (join < pool->last) { |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
727 type = join->prev & NGX_SLAB_PAGE_MASK; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
728 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
729 if (type == NGX_SLAB_PAGE) { |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
730 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
731 if (join->next != NULL) { |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
732 pages += join->slab; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
733 page->slab += join->slab; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
734 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
735 prev = (ngx_slab_page_t *) (join->prev & ~NGX_SLAB_PAGE_MASK); |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
736 prev->next = join->next; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
737 join->next->prev = join->prev; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
738 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
739 join->slab = NGX_SLAB_PAGE_FREE; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
740 join->next = NULL; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
741 join->prev = NGX_SLAB_PAGE; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
742 } |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
743 } |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
744 } |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
745 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
746 if (page > pool->pages) { |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
747 join = page - 1; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
748 type = join->prev & NGX_SLAB_PAGE_MASK; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
749 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
750 if (type == NGX_SLAB_PAGE) { |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
751 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
752 if (join->slab == NGX_SLAB_PAGE_FREE) { |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
753 join = (ngx_slab_page_t *) (join->prev & ~NGX_SLAB_PAGE_MASK); |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
754 } |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
755 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
756 if (join->next != NULL) { |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
757 pages += join->slab; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
758 join->slab += page->slab; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
759 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
760 prev = (ngx_slab_page_t *) (join->prev & ~NGX_SLAB_PAGE_MASK); |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
761 prev->next = join->next; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
762 join->next->prev = join->prev; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
763 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
764 page->slab = NGX_SLAB_PAGE_FREE; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
765 page->next = NULL; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
766 page->prev = NGX_SLAB_PAGE; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
767 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
768 page = join; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
769 } |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
770 } |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
771 } |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
772 |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
773 if (pages) { |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
774 page[pages].prev = (uintptr_t) page; |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
775 } |
c46657e391a3
Core: slab allocator free pages defragmentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5634
diff
changeset
|
776 |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
777 page->prev = (uintptr_t) &pool->free; |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
778 page->next = pool->free.next; |
966
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
779 |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
780 page->next->prev = (uintptr_t) page; |
715336c243e1
many bug fixes and ngx_slab_alloc_locked()/ngx_slab_free_locked()
Igor Sysoev <igor@sysoev.ru>
parents:
881
diff
changeset
|
781 |
860
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
782 pool->free.next = page; |
201d017ea470
slab allocator in shared memory
Igor Sysoev <igor@sysoev.ru>
parents:
826
diff
changeset
|
783 } |
2611
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
784 |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
785 |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
786 static void |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
787 ngx_slab_error(ngx_slab_pool_t *pool, ngx_uint_t level, char *text) |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
788 { |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
789 ngx_log_error(level, ngx_cycle->log, 0, "%s%s", text, pool->log_ctx); |
2bce3f6416c6
improve ngx_slab_alloc() error logging
Igor Sysoev <igor@sysoev.ru>
parents:
2610
diff
changeset
|
790 } |