Mercurial > hg > nginx-quic
annotate src/core/ngx_hunk.c @ 269:f082cb6bcdd7
nginx-0.0.2-2004-02-25-18:46:57 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 25 Feb 2004 15:46:57 +0000 |
parents | 574bea0142be |
children | 87e73f067470 |
rev | line source |
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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6 ngx_hunk_t *ngx_create_temp_hunk(ngx_pool_t *pool, size_t size) |
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7 { |
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8 ngx_hunk_t *h; |
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10 ngx_test_null(h, ngx_alloc_hunk(pool), NULL); |
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12 ngx_test_null(h->start, ngx_palloc(pool, size), NULL); |
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14 h->pos = h->start; |
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15 h->last = h->start; |
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17 h->file_pos = 0; |
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18 h->file_last = 0; |
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20 h->end = h->last + size; |
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22 h->type = NGX_HUNK_TEMP|NGX_HUNK_IN_MEMORY; |
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23 h->file = NULL; |
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24 h->shadow = NULL; |
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26 h->tag = 0; |
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27 |
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28 return h; |
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29 } |
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31 |
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32 ngx_chain_t *ngx_create_chain_of_hunks(ngx_pool_t *pool, ngx_bufs_t *bufs) |
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33 { |
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34 int i; |
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35 char *p; |
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36 ngx_hunk_t *h; |
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37 ngx_chain_t *chain, *cl, **ll; |
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38 |
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39 ngx_test_null(p, ngx_palloc(pool, bufs->num * bufs->size), NULL); |
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40 |
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41 ll = &chain; |
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42 |
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43 for (i = 0; i < bufs->num; i++) { |
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44 ngx_test_null(h, ngx_alloc_hunk(pool), NULL); |
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45 |
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46 h->pos = p; |
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47 h->last = p; |
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48 h->file_pos = 0; |
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49 h->file_last = 0; |
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50 |
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51 h->type = NGX_HUNK_IN_MEMORY|NGX_HUNK_TEMP; |
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52 |
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53 h->start = p; |
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54 p += bufs->size; |
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55 h->end = p; |
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56 |
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57 h->file = NULL; |
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58 h->shadow = NULL; |
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59 h->tag = 0; |
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60 |
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61 ngx_test_null(cl, ngx_alloc_chain_link(pool), NULL); |
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62 cl->hunk = h; |
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63 *ll = cl; |
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64 ll = &cl->next; |
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65 } |
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66 |
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67 *ll = NULL; |
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68 |
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69 return chain; |
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70 } |
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71 |
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72 |
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73 int ngx_chain_add_copy(ngx_pool_t *pool, ngx_chain_t **chain, ngx_chain_t *in) |
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74 { |
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75 ngx_chain_t *cl, **ll; |
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76 |
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77 ll = chain; |
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78 |
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79 for (cl = *chain; cl; cl = cl->next) { |
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80 ll = &cl->next; |
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81 } |
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82 |
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83 while (in) { |
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84 ngx_test_null(cl, ngx_alloc_chain_link(pool), NGX_ERROR); |
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85 |
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86 cl->hunk = in->hunk; |
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87 *ll = cl; |
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88 ll = &cl->next; |
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89 in = in->next; |
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90 } |
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91 |
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92 *ll = NULL; |
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93 |
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94 return NGX_OK; |
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95 } |
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96 |
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97 |
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98 void ngx_chain_update_chains(ngx_chain_t **free, ngx_chain_t **busy, |
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99 ngx_chain_t **out, ngx_hunk_tag_t tag) |
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100 { |
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101 ngx_chain_t *tl; |
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102 |
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103 if (*busy == NULL) { |
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changeset
|
104 *busy = *out; |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
105 |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
106 } else { |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
107 for (tl = *busy; /* void */ ; tl = tl->next) { |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
108 if (tl->next == NULL) { |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
109 tl->next = *out; |
132
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
110 break; |
208
0b67be7d4489
nginx-0.0.1-2003-12-08-23:48:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
194
diff
changeset
|
111 } |
132
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
112 } |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
113 } |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
114 |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
115 *out = NULL; |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
116 |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
117 while (*busy) { |
167
8aef3c72e5da
nginx-0.0.1-2003-10-30-19:51:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
166
diff
changeset
|
118 if (ngx_hunk_size((*busy)->hunk) != 0) { |
132
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
119 break; |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
120 } |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
121 |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
122 #if (HAVE_WRITE_ZEROCOPY) |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
123 if ((*busy)->hunk->type & NGX_HUNK_ZEROCOPY_BUSY) { |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
124 break; |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
125 } |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
126 #endif |
151
2d9e4a8b6d11
nginx-0.0.1-2003-10-20-21:14:07 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
127 |
154
eac26585476e
nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
128 if ((*busy)->hunk->tag != tag) { |
135
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
129 *busy = (*busy)->next; |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
130 continue; |
e29909bd9b8a
nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
134
diff
changeset
|
131 } |
132
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
132 |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
133 (*busy)->hunk->pos = (*busy)->hunk->last = (*busy)->hunk->start; |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
134 |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
135 tl = *busy; |
132
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
136 *busy = (*busy)->next; |
239
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
137 tl->next = *free; |
574bea0142be
nginx-0.0.1-2004-01-26-11:52:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
208
diff
changeset
|
138 *free = tl; |
132
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
139 } |
949f45d1589a
nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
100
diff
changeset
|
140 } |