Mercurial > hg > nginx

annotate src/core/ngx_output_chain.c @ 294:5cfd65b8b0a7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.3-2004-03-23-09:01:52 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 23 Mar 2004 06:01:52 +0000
parents 117ccc7c4055
children d621239c30f7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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1
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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2 #include <ngx_config.h>
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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3 #include <ngx_core.h>
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4 #include <ngx_event.h>
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5
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e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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7 #define NGX_NONE 1
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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8
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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9
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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10 ngx_inline static int ngx_output_chain_need_to_copy(ngx_output_chain_ctx_t *ctx,
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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11 ngx_hunk_t *hunk);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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12 static int ngx_output_chain_copy_hunk(ngx_hunk_t *dst, ngx_hunk_t *src,
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2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
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13 u_int sendfile);
160
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14
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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16 int ngx_output_chain(ngx_output_chain_ctx_t *ctx, ngx_chain_t *in)
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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17 {
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18 int rc, last;
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2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
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19 size_t size, hsize;
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20 ngx_chain_t *cl, *out, **last_out;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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21
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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22 /*
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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23 * the short path for the case when the chain ctx->in is empty
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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24 * and the incoming chain is empty too or it has the single hunk
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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25 * that does not require the copy
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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26 */
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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27
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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28 if (ctx->in == NULL) {
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29
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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30 if (in == NULL) {
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31 return ctx->output_filter(ctx->filter_ctx, in);
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32 }
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33
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34 if (in->next == NULL
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35 && (!ngx_output_chain_need_to_copy(ctx, in->hunk)))
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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36 {
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37 return ctx->output_filter(ctx->filter_ctx, in);
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38 }
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39 }
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40
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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41 /* add the incoming hunk to the chain ctx->in */
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42
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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43 if (in) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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44 if (ngx_chain_add_copy(ctx->pool, &ctx->in, in) == NGX_ERROR) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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45 return NGX_ERROR;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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46 }
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47 }
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48
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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49 last = NGX_NONE;
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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50 out = NULL;
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51 last_out = &out;
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52
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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53 for ( ;; ) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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54
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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55 while (ctx->in) {
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56
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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57 if (!ngx_output_chain_need_to_copy(ctx, ctx->in->hunk)) {
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58
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59 /* move the chain link to the chain out */
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60
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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61 cl = ctx->in;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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62 ctx->in = cl->next;
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63
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64 *last_out = cl;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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65 last_out = &cl->next;
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66 cl->next = NULL;
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67
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68 continue;
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69 }
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70
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71 if (ctx->hunk == NULL) {
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72
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73 /* get the free hunk */
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74
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75 if (ctx->free) {
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76 ctx->hunk = ctx->free->hunk;
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77 ctx->free = ctx->free->next;
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78
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79 } else if (ctx->hunks < ctx->bufs.num) {
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80
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81 size = ctx->bufs.size;
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82
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83 if (ctx->in->hunk->type & NGX_HUNK_LAST) {
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84
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85 hsize = ngx_hunk_size(ctx->in->hunk);
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86
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87 if (hsize < ctx->bufs.size) {
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88
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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89 /*
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90 * allocate small temp hunk for the small last hunk
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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91 * or its small last part
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92 */
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93
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94 size = hsize;
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95
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96 } else if (ctx->bufs.num == 1
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97 && (hsize < ctx->bufs.size
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98 + (ctx->bufs.size >> 2)))
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99 {
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100 /*
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101 * allocate a temp hunk that equals
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102 * to the last hunk if the last hunk size is lesser
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103 * than 1.25 of bufs.size and a temp hunk is single
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104 */
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105
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106 size = hsize;
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107 }
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108 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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109
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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110 ngx_test_null(ctx->hunk,
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111 ngx_create_temp_hunk(ctx->pool, size),
160
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112 NGX_ERROR);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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113 ctx->hunk->tag = ctx->tag;
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114 ctx->hunk->type |= NGX_HUNK_RECYCLED;
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115 ctx->hunks++;
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116
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117 } else {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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118 break;
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119 }
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120 }
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121
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parents:
diff changeset
122 rc = ngx_output_chain_copy_hunk(ctx->hunk, ctx->in->hunk,
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
123 ctx->sendfile);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
124
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
125 if (rc == NGX_ERROR) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
126 return rc;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
127 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
128
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
129 if (rc == NGX_AGAIN) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
130 if (out) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
131 break;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
132 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
133 return rc;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
134 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
135
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
136 /* delete the completed hunk from the chain ctx->in */
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
137
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
138 if (ngx_hunk_size(ctx->in->hunk) == 0) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
139 ctx->in = ctx->in->next;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
140 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
141
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
142 ngx_alloc_link_and_set_hunk(cl, ctx->hunk, ctx->pool, NGX_ERROR);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143 *last_out = cl;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
144 last_out = &cl->next;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
145 ctx->hunk = NULL;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
146
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
147 if (ctx->free == NULL) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
148 break;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
149 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
150 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
151
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
152 if (out == NULL && last != NGX_NONE) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153 return last;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
154 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
155
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
156 last = ctx->output_filter(ctx->filter_ctx, out);
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
157
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
158 ngx_chain_update_chains(&ctx->free, &ctx->busy, &out, ctx->tag);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
159 last_out = &out;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
160 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
161 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
162
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
163
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
164 ngx_inline static int ngx_output_chain_need_to_copy(ngx_output_chain_ctx_t *ctx,
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
165 ngx_hunk_t *hunk)
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
166 {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
167 if (ngx_hunk_special(hunk)) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
168 return 0;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
169 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
170
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
171 if (!ctx->sendfile) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
172 if (!(hunk->type & NGX_HUNK_IN_MEMORY)) {
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
173 return 1;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
174 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
175
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
176 hunk->type &= ~NGX_HUNK_FILE;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
177 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
178
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
179 if (ctx->need_in_memory && (!(hunk->type & NGX_HUNK_IN_MEMORY))) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
180 return 1;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
181 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
182
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
183
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
184 if (ctx->need_in_temp && (hunk->type & (NGX_HUNK_MEMORY|NGX_HUNK_MMAP))) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
185 return 1;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
186 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
187
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
188 return 0;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
189 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
190
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192 static int ngx_output_chain_copy_hunk(ngx_hunk_t *dst, ngx_hunk_t *src,
194
2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
193 u_int sendfile)
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
194 {
194
2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
195 size_t size;
2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
196 ssize_t n;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
197
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
198 size = ngx_hunk_size(src);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
199
194
2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
200 if (size > (size_t) (dst->end - dst->pos)) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
201 size = dst->end - dst->pos;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
202 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
203
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204 if (src->type & NGX_HUNK_IN_MEMORY) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
205 ngx_memcpy(dst->pos, src->pos, size);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
206 src->pos += size;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
207 dst->last += size;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
208
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
209 if (src->type & NGX_HUNK_FILE) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210 src->file_pos += size;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
211 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
212
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
213 if ((src->type & NGX_HUNK_LAST) && src->pos == src->last) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
214 dst->type |= NGX_HUNK_LAST;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
215 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
217 } else {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
218 n = ngx_read_file(src->file, dst->pos, size, src->file_pos);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
220 if (n == NGX_ERROR) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
221 return n;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
222 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
223
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
224 #if (NGX_FILE_AIO_READ)
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
225 if (n == NGX_AGAIN) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
226 return n;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
227 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
228 #endif
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
229
194
2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
230 if ((size_t) n != size) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
231 ngx_log_error(NGX_LOG_ALERT, src->file->log, 0,
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
232 ngx_read_file_n " reads only %d of %d from file",
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
233 n, size);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
234 if (n == 0) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
235 return NGX_ERROR;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
236 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
237 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
238
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
239 src->file_pos += n;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
240 dst->last += n;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
241
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
242 if (!sendfile) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
243 dst->type &= ~NGX_HUNK_FILE;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
244 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
245
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
246 if ((src->type & NGX_HUNK_LAST) && src->file_pos == src->file_last) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
247 dst->type |= NGX_HUNK_LAST;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
248 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
249 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
250
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
251 return NGX_OK;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
252 }
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
253
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
254
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 164
diff changeset
255 int ngx_chain_writer(void *data, ngx_chain_t *in)
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
256 {
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 164
diff changeset
257 ngx_chain_writer_ctx_t *ctx = data;
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
258
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
259 ngx_chain_t *cl;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
260
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
261
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
262 for (/* void */; in; in = in->next) {
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
263 ngx_alloc_link_and_set_hunk(cl, in->hunk, ctx->pool, NGX_ERROR);
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
264 *ctx->last = cl;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
265 ctx->last = &cl->next;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
266 }
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
267
291
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
268 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->connection->log, 0,
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
269 "WRITER0: %X", ctx->out);
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
270
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
271 ctx->out = ngx_write_chain(ctx->connection, ctx->out);
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
272
291
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
273 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->connection->log, 0,
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
274 "WRITER1: %X", ctx->out);
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
275
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
276 if (ctx->out == NGX_CHAIN_ERROR) {
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
277 return NGX_ERROR;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
278 }
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
279
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
280 if (ctx->out == NULL) {
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
281 ctx->last = &ctx->out;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
282 return NGX_OK;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
283 }
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
284
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
285 return NGX_AGAIN;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
286 }