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annotate src/http/ngx_http_write_filter.c @ 4:c5f071d376e5

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nginx-0.0.1-2002-08-22-19:24:03 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 22 Aug 2002 15:24:03 +0000
parents 34a521b1a148
children 708f8bb772ec
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d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
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1
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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3
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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4 #include <ngx_hunk.h>
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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5 #include <ngx_http.h>
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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6 #include <ngx_http_filter.h>
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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7 #include <ngx_event_write.h>
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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8
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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9 #include <ngx_http_write_filter.h>
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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10
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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11
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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12 ngx_http_module_t ngx_http_write_filter_module;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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13
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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14
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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15 /* STUB */
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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16 static ngx_http_write_filter_ctx_t module_ctx;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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17
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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18 void ngx_http_write_filter_init()
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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19 {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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20 module_ctx.buffer_output = 10240;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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21 module_ctx.out = NULL;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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22
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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23 ngx_http_write_filter_module.ctx = &module_ctx;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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24 }
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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25 /* */
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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26
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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28 int ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *in)
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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29 {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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30 int last;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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31 off_t size, flush;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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32 ngx_chain_t *ch, **prev, *chain;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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33 ngx_http_write_filter_ctx_t *ctx;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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35 ctx = (ngx_http_write_filter_ctx_t *)
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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36 ngx_get_module_ctx(r->main ? r->main : r,
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents: 1
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37 &ngx_http_write_filter_module);
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d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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38 size = flush = 0;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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39 last = 0;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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40 prev = &ctx->out;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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41
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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42 /* find size, flush point and last link of saved chain */
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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43 for (ch = ctx->out; ch; ch = ch->next) {
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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44 prev = &ch->next;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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45 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>
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46
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c5f071d376e5 nginx-0.0.1-2002-08-22-19:24:03 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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47 ngx_log_debug(r->connection->log, "old chunk: %x " QX_FMT " " QD_FMT _
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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48 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
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49 ch->hunk->last.file - ch->hunk->pos.file);
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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50
1
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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51 if (ch->hunk->type & NGX_HUNK_FLUSH)
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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52 flush = size;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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53
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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54 if (ch->hunk->type & NGX_HUNK_LAST)
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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55 last = 1;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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56 }
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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57
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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58 /* add new chain to existent one */
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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59 for (/* void */; in; in = in->next) {
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c5f071d376e5 nginx-0.0.1-2002-08-22-19:24:03 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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60 ngx_test_null(ch, ngx_palloc(r->pool, sizeof(ngx_chain_t)), NGX_ERROR);
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d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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61
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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62 ch->hunk = in->hunk;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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63 ch->next = NULL;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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64 *prev = ch;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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65 prev = &ch->next;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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66 size += ch->hunk->last.file - ch->hunk->pos.file;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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67
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c5f071d376e5 nginx-0.0.1-2002-08-22-19:24:03 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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68 ngx_log_debug(r->connection->log, "new chunk: %x " QX_FMT " " QD_FMT _
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents: 1
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69 ch->hunk->type _ ch->hunk->pos.file _
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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parents: 1
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70 ch->hunk->last.file - ch->hunk->pos.file);
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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71
1
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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72 if (ch->hunk->type & NGX_HUNK_FLUSH)
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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73 flush = size;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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74
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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75 if (ch->hunk->type & NGX_HUNK_LAST)
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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76 last = 1;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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77 }
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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78
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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parents: 1
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79 if (!last && flush == 0 && size < ctx->buffer_output)
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c5f071d376e5 nginx-0.0.1-2002-08-22-19:24:03 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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80 return NGX_OK;
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d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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81
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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82 chain = ngx_event_write(r->connection, ctx->out, flush);
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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83 if (chain == (ngx_chain_t *) -1)
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c5f071d376e5 nginx-0.0.1-2002-08-22-19:24:03 import
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parents: 3
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84 return NGX_ERROR;
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d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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85
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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86 ctx->out = chain;
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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87
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c5f071d376e5 nginx-0.0.1-2002-08-22-19:24:03 import
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parents: 3
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88 return (chain ? NGX_AGAIN : NGX_OK);
1
d220029ac7f3 nginx-0.0.1-2002-08-15-21:20:26 import
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89 }