Mercurial > hg > nginx
annotate src/http/ngx_http_write_filter.c @ 43:53cd05892261
nginx-0.0.1-2002-12-27-19:22:50 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 27 Dec 2002 16:22:50 +0000 |
parents | cd035a94e0b6 |
children | 0e81ac0bb3e2 |
rev | line source |
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2 #include <ngx_config.h> |
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4 #include <ngx_core.h> |
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5 #include <ngx_hunk.h> |
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6 #include <ngx_conf_file.h> |
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8 #include <ngx_event_write.h> |
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10 #include <ngx_http.h> |
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11 #include <ngx_http_config.h> |
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12 #include <ngx_http_write_filter.h> |
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15 static void *ngx_http_write_filter_create_conf(ngx_pool_t *pool); |
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18 static ngx_command_t ngx_http_write_filter_commands[] = { |
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20 {ngx_string("write_buffer"), |
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21 NGX_CONF_TAKE1, |
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22 ngx_conf_set_size_slot, |
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23 NGX_HTTP_LOC_CONF, |
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24 offsetof(ngx_http_write_filter_conf_t, buffer_output)}, |
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25 |
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26 {ngx_string(""), 0, NULL, 0, 0} |
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27 }; |
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28 |
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30 ngx_http_module_t ngx_http_write_filter_module_ctx = { |
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31 NGX_HTTP_MODULE, |
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32 |
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33 NULL, /* create server config */ |
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34 NULL, /* init server config */ |
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35 ngx_http_write_filter_create_conf, /* create location config */ |
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36 NULL, /* merge location config */ |
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37 |
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38 NULL, /* translate handler */ |
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39 |
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40 NULL, /* output header filter */ |
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41 NULL, /* next output header filter */ |
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42 ngx_http_write_filter, /* output body filter */ |
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43 NULL, /* next output body filter */ |
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44 }; |
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45 |
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46 |
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47 ngx_module_t ngx_http_write_filter_module = { |
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48 &ngx_http_write_filter_module_ctx, /* module context */ |
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49 ngx_http_write_filter_commands, /* module directives */ |
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50 NGX_HTTP_MODULE_TYPE, /* module type */ |
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51 NULL /* init module */ |
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52 }; |
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53 |
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55 int ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *in) |
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56 { |
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57 int last; |
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58 off_t size, flush; |
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59 ngx_chain_t *ch, **prev, *chain; |
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60 ngx_http_write_filter_ctx_t *ctx; |
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61 ngx_http_write_filter_conf_t *conf; |
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62 |
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63 |
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64 ctx = (ngx_http_write_filter_ctx_t *) |
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65 ngx_http_get_module_ctx(r->main ? r->main : r, |
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66 ngx_http_write_filter_module_ctx); |
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67 if (ctx == NULL) { |
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68 ngx_http_create_ctx(r, ctx, |
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69 ngx_http_write_filter_module_ctx, |
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70 sizeof(ngx_http_write_filter_ctx_t)); |
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71 } |
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72 |
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73 size = flush = 0; |
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74 last = 0; |
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75 prev = &ctx->out; |
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76 |
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77 /* find size, flush point and last link of saved chain */ |
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78 for (ch = ctx->out; ch; ch = ch->next) { |
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79 prev = &ch->next; |
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80 size += ch->hunk->last.file - ch->hunk->pos.file; |
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81 |
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82 ngx_log_debug(r->connection->log, "old chunk: %x " QX_FMT " " QD_FMT _ |
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83 ch->hunk->type _ ch->hunk->pos.file _ |
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84 ch->hunk->last.file - ch->hunk->pos.file); |
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85 |
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86 if (ch->hunk->type & (NGX_HUNK_FLUSH|NGX_HUNK_RECYCLED)) { |
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87 flush = size; |
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88 } |
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89 |
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90 if (ch->hunk->type & NGX_HUNK_LAST) { |
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91 last = 1; |
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92 } |
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93 } |
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94 |
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95 /* add new chain to existent one */ |
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96 for (/* void */; in; in = in->next) { |
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97 ngx_test_null(ch, ngx_palloc(r->pool, sizeof(ngx_chain_t)), NGX_ERROR); |
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98 |
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99 ch->hunk = in->hunk; |
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100 ch->next = NULL; |
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101 *prev = ch; |
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
102 prev = &ch->next; |
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
103 size += ch->hunk->last.file - ch->hunk->pos.file; |
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
104 |
4
c5f071d376e5
nginx-0.0.1-2002-08-22-19:24:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
3
diff
changeset
|
105 ngx_log_debug(r->connection->log, "new chunk: %x " QX_FMT " " QD_FMT _ |
3
34a521b1a148
nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
1
diff
changeset
|
106 ch->hunk->type _ ch->hunk->pos.file _ |
34a521b1a148
nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
1
diff
changeset
|
107 ch->hunk->last.file - ch->hunk->pos.file); |
34a521b1a148
nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
1
diff
changeset
|
108 |
41
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
109 if (ch->hunk->type & (NGX_HUNK_FLUSH|NGX_HUNK_RECYCLED)) { |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
110 flush = size; |
41
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
111 } |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
112 |
41
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
113 if (ch->hunk->type & NGX_HUNK_LAST) { |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
114 last = 1; |
41
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
115 } |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
116 } |
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
117 |
9
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
118 conf = (ngx_http_write_filter_conf_t *) |
41
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
119 ngx_http_get_module_loc_conf(r->main ? r->main : r, |
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
120 ngx_http_write_filter_module_ctx); |
9
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
121 |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
24
diff
changeset
|
122 ngx_log_debug(r->connection->log, "l:%d f:%d" _ last _ flush); |
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
24
diff
changeset
|
123 |
41
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
124 if (!last && flush == 0 && size < conf->buffer_output) { |
4
c5f071d376e5
nginx-0.0.1-2002-08-22-19:24:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
3
diff
changeset
|
125 return NGX_OK; |
41
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
126 } |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 |
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 chain = ngx_event_write(r->connection, ctx->out, flush); |
41
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
129 if (chain == (ngx_chain_t *) -1) { |
4
c5f071d376e5
nginx-0.0.1-2002-08-22-19:24:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
3
diff
changeset
|
130 return NGX_ERROR; |
41
59e7c7f30d49
nginx-0.0.1-2002-12-26-19:26:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
131 } |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
132 |
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
133 ctx->out = chain; |
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
4
diff
changeset
|
135 ngx_log_debug(r->connection->log, "write filter %x" _ chain); |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
4
diff
changeset
|
136 |
4
c5f071d376e5
nginx-0.0.1-2002-08-22-19:24:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
3
diff
changeset
|
137 return (chain ? NGX_AGAIN : NGX_OK); |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
138 } |
9
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
139 |
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
140 |
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
141 static void *ngx_http_write_filter_create_conf(ngx_pool_t *pool) |
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
142 { |
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
143 ngx_http_write_filter_conf_t *conf; |
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
144 |
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
145 ngx_test_null(conf, |
10
4f3879d9b6f6
nginx-0.0.1-2002-09-11-19:18:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
9
diff
changeset
|
146 ngx_palloc(pool, sizeof(ngx_http_write_filter_conf_t)), |
9
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
147 NULL); |
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
148 |
10
4f3879d9b6f6
nginx-0.0.1-2002-09-11-19:18:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
9
diff
changeset
|
149 conf->buffer_output = NGX_CONF_UNSET; |
9
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
150 |
10
4f3879d9b6f6
nginx-0.0.1-2002-09-11-19:18:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
9
diff
changeset
|
151 return conf; |
9
6f58641241bb
nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
parents:
8
diff
changeset
|
152 } |