annotate src/core/ngx_hunk.c @ 166:389d7ee9fa60

nginx-0.0.1-2003-10-30-11:51:06 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 30 Oct 2003 08:51:06 +0000
parents e7e094d34162
children 8aef3c72e5da
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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1
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cd035a94e0b6 nginx-0.0.1-2002-12-27-10:27:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 16
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2 #include <ngx_config.h>
100
7ebc8b7fb816 nginx-0.0.1-2003-06-03-19:42:58 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
3 #include <ngx_core.h>
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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5
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389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
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6 ngx_hunk_t *ngx_create_temp_hunk(ngx_pool_t *pool, int size)
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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7 {
16
6ce4755737b4 nginx-0.0.1-2002-09-26-20:50:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 8
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8 ngx_hunk_t *h;
6ce4755737b4 nginx-0.0.1-2002-09-26-20:50:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 8
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9
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389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
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10 ngx_test_null(h, ngx_alloc_hunk(pool), NULL);
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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11
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389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
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12 ngx_test_null(h->start, ngx_palloc(pool, size), NULL);
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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13
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
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14 h->pos = h->start;
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
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15 h->last = h->start;
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
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16
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
17 h->file_pos = 0;
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
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18 h->file_last = 0;
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
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19
67
5a7d1aaa1618 nginx-0.0.1-2003-03-11-23:38:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 42
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20 h->end = h->last + size;
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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21
67
5a7d1aaa1618 nginx-0.0.1-2003-03-11-23:38:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 42
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22 h->type = NGX_HUNK_TEMP|NGX_HUNK_IN_MEMORY;
76
6127d7075471 nginx-0.0.1-2003-04-15-19:06:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 67
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23 h->file = NULL;
6127d7075471 nginx-0.0.1-2003-04-15-19:06:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 67
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24 h->shadow = NULL;
6127d7075471 nginx-0.0.1-2003-04-15-19:06:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 67
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25
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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26 h->tag = 0;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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27
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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28 return h;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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29 }
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
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e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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31
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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32 ngx_chain_t *ngx_create_chain_of_hunks(ngx_pool_t *pool, ngx_bufs_t *bufs)
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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33 {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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34 int i;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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35 char *p;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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36 ngx_hunk_t *h;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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37 ngx_chain_t *chain, *cl, **ll;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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38
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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39 ngx_test_null(p, ngx_palloc(pool, bufs->num * bufs->size), NULL);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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40
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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41 ll = &chain;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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42
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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43 for (i = 0; i < bufs->num; i++) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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44 ngx_test_null(h, ngx_alloc_hunk(pool), NULL);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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45
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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46 h->pos = p;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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47 h->last = p;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
48 h->file_pos = 0;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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49 h->file_last = 0;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
50
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
51 h->type = NGX_HUNK_IN_MEMORY|NGX_HUNK_TEMP;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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52
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
53 h->start = p;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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54 p += bufs->size;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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55 h->end = p;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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56
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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57 h->file = NULL;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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58 h->shadow = NULL;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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59 h->tag = 0;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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parents: 155
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60
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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61 ngx_test_null(cl, ngx_alloc_chain_link(pool), NULL);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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62 cl->hunk = h;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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63 *ll = cl;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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64 ll = &cl->next;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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65 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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parents: 155
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66
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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67 *ll = NULL;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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68
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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69 return chain;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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70 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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parents: 155
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71
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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parents: 155
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72
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
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parents: 154
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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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parents: 132
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74 {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
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parents: 154
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75 ngx_chain_t *cl, **ll;
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parents: 132
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76
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
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parents: 154
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77 ll = chain;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
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parents: 132
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78
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
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79 for (cl = *chain; cl; cl = cl->next) {
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
80 ll = &cl->next;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
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parents: 132
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81 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
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82
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
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83 while (in) {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
84 ngx_test_null(cl, ngx_alloc_chain_link(pool), NGX_ERROR);
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
85
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
86 cl->hunk = in->hunk;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
87 *ll = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
88 ll = &cl->next;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
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parents: 132
diff changeset
89 in = in->next;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
90 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
91
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
92 *ll = NULL;
136
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
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parents: 135
diff changeset
93
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
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94 return NGX_OK;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
95 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
96
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
97
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
98 void ngx_chain_update_chains(ngx_chain_t **free, ngx_chain_t **busy,
154
eac26585476e nginx-0.0.1-2003-10-22-11:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 153
diff changeset
99 ngx_chain_t **out, ngx_hunk_tag_t tag)
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
100 {
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
101 ngx_chain_t *te;
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
102
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
103 if (*busy == NULL) {
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff 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 {
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
107 for (te = *busy; /* void */ ; te = te->next) {
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
108 if (te->next == NULL) {
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
109 te->next = *out;
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
110 break;
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
111 }
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) {
151
2d9e4a8b6d11 nginx-0.0.1-2003-10-20-21:14:07 import
Igor Sysoev <igor@sysoev.ru>
parents: 136
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
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
135 te = *busy;
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;
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
137 te->next = *free;
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
138 *free = te;
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 }