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annotate src/core/ngx_output_chain.c @ 444:42d11f017717

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nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
author Igor Sysoev <igor@sysoev.ru>
date Wed, 29 Sep 2004 16:00:49 +0000
parents da8c5707af39
children 23fb87bddda1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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12 #define NGX_NONE 1
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2e3cbc1bbe3c nginx-0.0.7-2004-06-16-19:32:11 import
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15 ngx_inline static ngx_int_t
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16 ngx_output_chain_need_to_copy(ngx_output_chain_ctx_t *ctx, ngx_buf_t *buf);
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17 static ngx_int_t ngx_output_chain_copy_buf(ngx_buf_t *dst, ngx_buf_t *src,
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18 ngx_uint_t sendfile);
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21 ngx_int_t ngx_output_chain(ngx_output_chain_ctx_t *ctx, ngx_chain_t *in)
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22 {
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23 int rc, last;
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24 size_t size, bsize;
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25 ngx_chain_t *cl, *out, **last_out;
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26
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27 /*
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28 * the short path for the case when the ctx->in chain is empty
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29 * and the incoming chain is empty too or it has the single buf
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30 * that does not require the copy
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31 */
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32
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33 if (ctx->in == NULL) {
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34
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35 if (in == NULL) {
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36 return ctx->output_filter(ctx->filter_ctx, in);
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37 }
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38
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39 if (in->next == NULL
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40 && (!ngx_output_chain_need_to_copy(ctx, in->buf)))
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41 {
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42 return ctx->output_filter(ctx->filter_ctx, in);
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43 }
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44 }
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45
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46 /* add the incoming buf to the chain ctx->in */
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47
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48 if (in) {
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49 if (ngx_chain_add_copy(ctx->pool, &ctx->in, in) == NGX_ERROR) {
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50 return NGX_ERROR;
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51 }
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52 }
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53
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54 last = NGX_NONE;
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55 out = NULL;
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56 last_out = &out;
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57
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58 for ( ;; ) {
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59
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60 while (ctx->in) {
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61
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62 /*
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63 * cycle while there are the ctx->in bufs
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64 * or there are the free output bufs to copy in
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65 */
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66
403
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67 bsize = ngx_buf_size(ctx->in->buf);
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68
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69 if (bsize == 0 && !ngx_buf_special(ctx->in->buf)) {
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70
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71 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0,
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72 "zero size buf");
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73
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74 ctx->in = ctx->in->next;
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75
403
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76 continue;
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77 }
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78
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79 if (!ngx_output_chain_need_to_copy(ctx, ctx->in->buf)) {
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80
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81 /* move the chain link to the output chain */
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82
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83 cl = ctx->in;
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84 ctx->in = cl->next;
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85
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86 *last_out = cl;
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87 last_out = &cl->next;
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88 cl->next = NULL;
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89
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90 continue;
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91 }
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92
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93 if (ctx->buf == NULL) {
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94
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95 /* get the free buf */
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96
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97 if (ctx->free) {
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98 ctx->buf = ctx->free->buf;
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99 ctx->free = ctx->free->next;
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100
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101 } else if (out || ctx->allocated == ctx->bufs.num) {
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102
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103 break;
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104
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105 } else {
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106
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107 size = ctx->bufs.size;
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108
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109 if (ctx->in->buf->last_buf) {
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110
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111 if (bsize < ctx->bufs.size) {
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112
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113 /*
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114 * allocate small temp buf for the small last buf
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diff changeset
115 * or its small last part
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
116 */
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
117
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
118 size = bsize;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
119
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
120 } else if (ctx->bufs.num == 1
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
121 && (bsize < ctx->bufs.size
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
122 + (ctx->bufs.size >> 2)))
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
123 {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
124 /*
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
125 * allocate a temp buf that equals
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
126 * to the last buf if the last buf size is lesser
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
127 * than 1.25 of bufs.size and a temp buf is single
160
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
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
130 size = bsize;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
131 }
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
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
134 if (!(ctx->buf = ngx_create_temp_buf(ctx->pool, size))) {
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
135 return NGX_ERROR;
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
136 }
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
137
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
138 ctx->buf->tag = ctx->tag;
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
139 ctx->buf->recycled = 1;
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
140 ctx->allocated++;
160
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 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
143
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
144 rc = ngx_output_chain_copy_buf(ctx->buf, ctx->in->buf,
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
145 ctx->sendfile);
160
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 (rc == NGX_ERROR) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
148 return rc;
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 if (rc == NGX_AGAIN) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
152 if (out) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
153 break;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
154 }
430
1fa5daf7558e nginx-0.0.11-2004-09-19-22:27:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 408
diff changeset
155
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
156 return rc;
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
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
159 /* delete the completed buf from the ctx->in chain */
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
160
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
161 if (ngx_buf_size(ctx->in->buf) == 0) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
162 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
163 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
164
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
165 ngx_alloc_link_and_set_buf(cl, ctx->buf, ctx->pool, NGX_ERROR);
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
166 *last_out = cl;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
167 last_out = &cl->next;
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
168 ctx->buf = NULL;
160
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
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
171 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
172 return last;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
173 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
174
294
5cfd65b8b0a7 nginx-0.0.3-2004-03-23-09:01:52 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
175 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
176
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
177 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
178 last_out = &out;
320
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
179
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
180 if (last == NGX_ERROR) {
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
181 return last;
d621239c30f7 nginx-0.0.3-2004-04-18-23:06:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 294
diff changeset
182 }
160
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 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
185
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
186
356
2e3cbc1bbe3c nginx-0.0.7-2004-06-16-19:32:11 import
Igor Sysoev <igor@sysoev.ru>
parents: 344
diff changeset
187 ngx_inline static ngx_int_t
2e3cbc1bbe3c nginx-0.0.7-2004-06-16-19:32:11 import
Igor Sysoev <igor@sysoev.ru>
parents: 344
diff changeset
188 ngx_output_chain_need_to_copy(ngx_output_chain_ctx_t *ctx, ngx_buf_t *buf)
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
189 {
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
190 if (ngx_buf_special(buf)) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
191 return 0;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
192 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
193
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
194 if (!ctx->sendfile) {
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
195 if (!ngx_buf_in_memory(buf)) {
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
196 return 1;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
197 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 167
diff changeset
198
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
199 buf->in_file = 0;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
200 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
201
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
202 if (ctx->need_in_memory && !ngx_buf_in_memory(buf)) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
203 return 1;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
205
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
206 if (ctx->need_in_temp && (buf->memory || buf->mmap)) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
207 return 1;
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
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
210 return 0;
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
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
214 static ngx_int_t ngx_output_chain_copy_buf(ngx_buf_t *dst, ngx_buf_t *src,
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
215 ngx_uint_t sendfile)
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
216 {
194
2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
217 size_t size;
2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
218 ssize_t n;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
219
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
220 size = ngx_buf_size(src);
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
221
194
2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
222 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
223 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
224 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
225
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
226 if (ngx_buf_in_memory(src)) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
227 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
228 src->pos += size;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
229 dst->last += size;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
230
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
231 if (src->in_file) {
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
232 src->file_pos += size;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
233 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
234
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
235 if (src->last_buf && src->pos == src->last) {
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
236 dst->last_buf = 1;
160
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 } else {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
240 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
241
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
242 if (n == NGX_ERROR) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
243 return n;
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 (NGX_FILE_AIO_READ)
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
247 if (n == NGX_AGAIN) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
248 return n;
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 #endif
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
251
194
2357fa41738a nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 170
diff changeset
252 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
253 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
254 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
255 n, size);
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
256 if (n == 0) {
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
257 return NGX_ERROR;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
258 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
259 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
260
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
261 src->file_pos += n;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
262 dst->last += n;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
263
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
264 if (!sendfile) {
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
265 dst->in_file = 0;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
266 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
267
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
268 if (src->last_buf && src->file_pos == src->file_last) {
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
269 dst->last_buf = 1;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
270 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
271 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
272
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
273 return NGX_OK;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
274 }
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
275
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
276
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
277 ngx_int_t 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
278 {
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 164
diff changeset
279 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
280
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
281 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
282
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 for (/* void */; in; in = in->next) {
408
d6e2b445c1b8 nginx-0.0.10-2004-08-27-19:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents: 403
diff changeset
285
d6e2b445c1b8 nginx-0.0.10-2004-08-27-19:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents: 403
diff changeset
286 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->connection->log, 0,
d6e2b445c1b8 nginx-0.0.10-2004-08-27-19:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents: 403
diff changeset
287 "WRITER buf: %d", ngx_buf_size(in->buf));
d6e2b445c1b8 nginx-0.0.10-2004-08-27-19:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents: 403
diff changeset
288
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 334
diff changeset
289 ngx_alloc_link_and_set_buf(cl, in->buf, ctx->pool, NGX_ERROR);
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
290 *ctx->last = cl;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
291 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
292 }
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
293
291
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
294 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
295 "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
296
395
f8f0f1834266 nginx-0.0.7-2004-07-16-21:11:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 362
diff changeset
297 ctx->out = ngx_send_chain(ctx->connection, ctx->out, ctx->limit);
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
298
291
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 257
diff changeset
299 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
300 "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
301
162
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
302 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
303 return NGX_ERROR;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
304 }
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
305
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
306 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
307 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
308 return NGX_OK;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
309 }
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
310
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
311 return NGX_AGAIN;
96993d4d5067 nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
diff changeset
312 }