Mercurial > hg > nginx-quic
annotate src/core/ngx_output_chain.c @ 8899:70365b6fe5f4
Misc: win32 sources now preserved in release tarballs.
This makes it possible to build nginx under Windows from release tarballs
instead of using source code repository.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 20 Jun 2022 19:30:50 +0300 |
parents | b002ad258f1d |
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rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
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11 |
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12 |
469 | 13 #if 0 |
14 #define NGX_SENDFILE_LIMIT 4096 | |
15 #endif | |
16 | |
2316 | 17 /* |
18 * When DIRECTIO is enabled FreeBSD, Solaris, and MacOSX read directly | |
19 * to an application memory from a device if parameters are aligned | |
3053 | 20 * to device sector boundary (512 bytes). They fallback to usual read |
2316 | 21 * operation if the parameters are not aligned. |
22 * Linux allows DIRECTIO only if the parameters are aligned to a filesystem | |
23 * sector boundary, otherwise it returns EINVAL. The sector size is | |
24 * usually 512 bytes, however, on XFS it may be 4096 bytes. | |
25 */ | |
469 | 26 |
27 #define NGX_NONE 1 | |
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28 |
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29 |
467 | 30 static ngx_inline ngx_int_t |
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31 ngx_output_chain_as_is(ngx_output_chain_ctx_t *ctx, ngx_buf_t *buf); |
469 | 32 static ngx_int_t ngx_output_chain_add_copy(ngx_pool_t *pool, |
499 | 33 ngx_chain_t **chain, ngx_chain_t *in); |
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34 static ngx_int_t ngx_output_chain_align_file_buf(ngx_output_chain_ctx_t *ctx, |
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35 off_t bsize); |
2230 | 36 static ngx_int_t ngx_output_chain_get_buf(ngx_output_chain_ctx_t *ctx, |
37 off_t bsize); | |
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38 static ngx_int_t ngx_output_chain_copy_buf(ngx_output_chain_ctx_t *ctx); |
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39 |
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40 |
499 | 41 ngx_int_t |
42 ngx_output_chain(ngx_output_chain_ctx_t *ctx, ngx_chain_t *in) | |
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43 { |
473 | 44 off_t bsize; |
597 | 45 ngx_int_t rc, last; |
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46 ngx_chain_t *cl, *out, **last_out; |
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47 |
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48 if (ctx->in == NULL && ctx->busy == NULL |
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49 #if (NGX_HAVE_FILE_AIO || NGX_THREADS) |
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50 && !ctx->aio |
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51 #endif |
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52 ) |
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53 { |
469 | 54 /* |
55 * the short path for the case when the ctx->in and ctx->busy chains | |
56 * are empty, the incoming chain is empty too or has the single buf | |
57 * that does not require the copy | |
58 */ | |
160
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59 |
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60 if (in == NULL) { |
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61 return ctx->output_filter(ctx->filter_ctx, in); |
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62 } |
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63 |
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64 if (in->next == NULL |
469 | 65 #if (NGX_SENDFILE_LIMIT) |
66 && !(in->buf->in_file && in->buf->file_last > NGX_SENDFILE_LIMIT) | |
67 #endif | |
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68 && ngx_output_chain_as_is(ctx, in->buf)) |
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69 { |
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70 return ctx->output_filter(ctx->filter_ctx, in); |
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71 } |
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72 } |
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73 |
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74 /* add the incoming buf to the chain ctx->in */ |
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75 |
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76 if (in) { |
469 | 77 if (ngx_output_chain_add_copy(ctx->pool, &ctx->in, in) == NGX_ERROR) { |
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78 return NGX_ERROR; |
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79 } |
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80 } |
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81 |
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82 out = NULL; |
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83 last_out = &out; |
499 | 84 last = NGX_NONE; |
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85 |
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86 for ( ;; ) { |
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87 |
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88 #if (NGX_HAVE_FILE_AIO || NGX_THREADS) |
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89 if (ctx->aio) { |
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90 return NGX_AGAIN; |
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91 } |
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92 #endif |
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93 |
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94 while (ctx->in) { |
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95 |
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96 /* |
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97 * cycle while there are the ctx->in bufs |
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98 * and there are the free output bufs to copy in |
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99 */ |
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100 |
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101 bsize = ngx_buf_size(ctx->in->buf); |
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102 |
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103 if (bsize == 0 && !ngx_buf_special(ctx->in->buf)) { |
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104 |
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105 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0, |
483 | 106 "zero size buf in output " |
107 "t:%d r:%d f:%d %p %p-%p %p %O-%O", | |
108 ctx->in->buf->temporary, | |
109 ctx->in->buf->recycled, | |
110 ctx->in->buf->in_file, | |
111 ctx->in->buf->start, | |
112 ctx->in->buf->pos, | |
113 ctx->in->buf->last, | |
114 ctx->in->buf->file, | |
115 ctx->in->buf->file_pos, | |
116 ctx->in->buf->file_last); | |
403
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117 |
473 | 118 ngx_debug_point(); |
119 | |
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120 ctx->in = ctx->in->next; |
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121 |
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122 continue; |
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123 } |
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124 |
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125 if (bsize < 0) { |
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126 |
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127 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0, |
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128 "negative size buf in output " |
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129 "t:%d r:%d f:%d %p %p-%p %p %O-%O", |
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130 ctx->in->buf->temporary, |
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131 ctx->in->buf->recycled, |
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132 ctx->in->buf->in_file, |
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133 ctx->in->buf->start, |
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134 ctx->in->buf->pos, |
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135 ctx->in->buf->last, |
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136 ctx->in->buf->file, |
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137 ctx->in->buf->file_pos, |
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138 ctx->in->buf->file_last); |
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139 |
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140 ngx_debug_point(); |
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141 |
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142 return NGX_ERROR; |
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143 } |
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144 |
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145 if (ngx_output_chain_as_is(ctx, ctx->in->buf)) { |
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146 |
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147 /* move the chain link to the output chain */ |
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148 |
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149 cl = ctx->in; |
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150 ctx->in = cl->next; |
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151 |
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152 *last_out = cl; |
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153 last_out = &cl->next; |
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154 cl->next = NULL; |
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155 |
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156 continue; |
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157 } |
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158 |
343
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159 if (ctx->buf == NULL) { |
160
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160 |
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161 rc = ngx_output_chain_align_file_buf(ctx, bsize); |
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162 |
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163 if (rc == NGX_ERROR) { |
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164 return NGX_ERROR; |
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165 } |
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166 |
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167 if (rc != NGX_OK) { |
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168 |
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169 if (ctx->free) { |
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170 |
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171 /* get the free buf */ |
160
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172 |
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173 cl = ctx->free; |
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174 ctx->buf = cl->buf; |
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175 ctx->free = cl->next; |
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176 |
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177 ngx_free_chain(ctx->pool, cl); |
160
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178 |
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179 } else if (out || ctx->allocated == ctx->bufs.num) { |
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180 |
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181 break; |
334
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182 |
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183 } else if (ngx_output_chain_get_buf(ctx, bsize) != NGX_OK) { |
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184 return NGX_ERROR; |
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185 } |
160
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186 } |
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187 } |
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188 |
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189 rc = ngx_output_chain_copy_buf(ctx); |
160
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190 |
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191 if (rc == NGX_ERROR) { |
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192 return rc; |
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193 } |
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194 |
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195 if (rc == NGX_AGAIN) { |
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196 if (out) { |
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197 break; |
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198 } |
430
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199 |
160
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200 return rc; |
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201 } |
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202 |
343
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203 /* delete the completed buf from the ctx->in chain */ |
160
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204 |
343
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205 if (ngx_buf_size(ctx->in->buf) == 0) { |
160
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206 ctx->in = ctx->in->next; |
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207 } |
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208 |
501 | 209 cl = ngx_alloc_chain_link(ctx->pool); |
210 if (cl == NULL) { | |
461 | 211 return NGX_ERROR; |
212 } | |
501 | 213 |
461 | 214 cl->buf = ctx->buf; |
215 cl->next = NULL; | |
160
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216 *last_out = cl; |
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217 last_out = &cl->next; |
343
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218 ctx->buf = NULL; |
160
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219 } |
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220 |
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221 if (out == NULL && last != NGX_NONE) { |
509 | 222 |
223 if (ctx->in) { | |
224 return NGX_AGAIN; | |
225 } | |
226 | |
160
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227 return last; |
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228 } |
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229 |
294
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230 last = ctx->output_filter(ctx->filter_ctx, out); |
160
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231 |
569 | 232 if (last == NGX_ERROR || last == NGX_DONE) { |
233 return last; | |
234 } | |
235 | |
4114
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236 ngx_chain_update_chains(ctx->pool, &ctx->free, &ctx->busy, &out, |
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237 ctx->tag); |
160
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238 last_out = &out; |
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239 } |
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240 } |
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241 |
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242 |
467 | 243 static ngx_inline ngx_int_t |
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244 ngx_output_chain_as_is(ngx_output_chain_ctx_t *ctx, ngx_buf_t *buf) |
160
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245 { |
469 | 246 ngx_uint_t sendfile; |
247 | |
343
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248 if (ngx_buf_special(buf)) { |
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249 return 1; |
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250 } |
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251 |
6022
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252 #if (NGX_THREADS) |
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253 if (buf->in_file) { |
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254 buf->file->thread_handler = ctx->thread_handler; |
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255 buf->file->thread_ctx = ctx->filter_ctx; |
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256 } |
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257 #endif |
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258 |
469 | 259 sendfile = ctx->sendfile; |
260 | |
261 #if (NGX_SENDFILE_LIMIT) | |
262 | |
263 if (buf->in_file && buf->file_pos >= NGX_SENDFILE_LIMIT) { | |
264 sendfile = 0; | |
265 } | |
266 | |
267 #endif | |
268 | |
8778
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269 #if !(NGX_HAVE_SENDFILE_NODISKIO) |
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270 |
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271 /* |
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272 * With DIRECTIO, disable sendfile() unless sendfile(SF_NOCACHE) |
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273 * is available. |
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274 */ |
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275 |
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276 if (buf->in_file && buf->file->directio) { |
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277 sendfile = 0; |
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278 } |
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279 |
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280 #endif |
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281 |
469 | 282 if (!sendfile) { |
455 | 283 |
343
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284 if (!ngx_buf_in_memory(buf)) { |
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285 return 0; |
170
c42be4185301
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286 } |
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287 |
343
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288 buf->in_file = 0; |
160
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289 } |
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290 |
343
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291 if (ctx->need_in_memory && !ngx_buf_in_memory(buf)) { |
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292 return 0; |
160
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293 } |
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294 |
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295 if (ctx->need_in_temp && (buf->memory || buf->mmap)) { |
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296 return 0; |
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297 } |
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298 |
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299 return 1; |
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300 } |
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301 |
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302 |
499 | 303 static ngx_int_t |
304 ngx_output_chain_add_copy(ngx_pool_t *pool, ngx_chain_t **chain, | |
305 ngx_chain_t *in) | |
469 | 306 { |
307 ngx_chain_t *cl, **ll; | |
308 #if (NGX_SENDFILE_LIMIT) | |
309 ngx_buf_t *b, *buf; | |
310 #endif | |
311 | |
312 ll = chain; | |
313 | |
314 for (cl = *chain; cl; cl = cl->next) { | |
315 ll = &cl->next; | |
316 } | |
317 | |
318 while (in) { | |
319 | |
501 | 320 cl = ngx_alloc_chain_link(pool); |
321 if (cl == NULL) { | |
469 | 322 return NGX_ERROR; |
323 } | |
324 | |
325 #if (NGX_SENDFILE_LIMIT) | |
326 | |
327 buf = in->buf; | |
328 | |
329 if (buf->in_file | |
330 && buf->file_pos < NGX_SENDFILE_LIMIT | |
331 && buf->file_last > NGX_SENDFILE_LIMIT) | |
332 { | |
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333 /* split a file buf on two bufs by the sendfile limit */ |
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334 |
501 | 335 b = ngx_calloc_buf(pool); |
336 if (b == NULL) { | |
469 | 337 return NGX_ERROR; |
338 } | |
339 | |
340 ngx_memcpy(b, buf, sizeof(ngx_buf_t)); | |
341 | |
342 if (ngx_buf_in_memory(buf)) { | |
343 buf->pos += (ssize_t) (NGX_SENDFILE_LIMIT - buf->file_pos); | |
344 b->last = buf->pos; | |
345 } | |
346 | |
347 buf->file_pos = NGX_SENDFILE_LIMIT; | |
348 b->file_last = NGX_SENDFILE_LIMIT; | |
349 | |
350 cl->buf = b; | |
351 | |
352 } else { | |
353 cl->buf = buf; | |
354 in = in->next; | |
355 } | |
356 | |
357 #else | |
358 cl->buf = in->buf; | |
359 in = in->next; | |
360 | |
361 #endif | |
362 | |
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363 cl->next = NULL; |
469 | 364 *ll = cl; |
365 ll = &cl->next; | |
366 } | |
367 | |
368 return NGX_OK; | |
369 } | |
370 | |
371 | |
499 | 372 static ngx_int_t |
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373 ngx_output_chain_align_file_buf(ngx_output_chain_ctx_t *ctx, off_t bsize) |
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374 { |
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375 size_t size; |
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376 ngx_buf_t *in; |
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377 |
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378 in = ctx->in->buf; |
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379 |
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380 if (in->file == NULL || !in->file->directio) { |
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381 return NGX_DECLINED; |
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382 } |
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383 |
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384 ctx->directio = 1; |
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385 |
3053 | 386 size = (size_t) (in->file_pos - (in->file_pos & ~(ctx->alignment - 1))); |
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387 |
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388 if (size == 0) { |
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389 |
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390 if (bsize >= (off_t) ctx->bufs.size) { |
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391 return NGX_DECLINED; |
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392 } |
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393 |
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394 size = (size_t) bsize; |
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395 |
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396 } else { |
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397 size = (size_t) ctx->alignment - size; |
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398 |
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399 if ((off_t) size > bsize) { |
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400 size = (size_t) bsize; |
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401 } |
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402 } |
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403 |
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404 ctx->buf = ngx_create_temp_buf(ctx->pool, size); |
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405 if (ctx->buf == NULL) { |
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406 return NGX_ERROR; |
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407 } |
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408 |
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409 /* |
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410 * we do not set ctx->buf->tag, because we do not want |
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411 * to reuse the buf via ctx->free list |
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412 */ |
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413 |
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414 #if (NGX_HAVE_ALIGNED_DIRECTIO) |
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415 ctx->unaligned = 1; |
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416 #endif |
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417 |
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418 return NGX_OK; |
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419 } |
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420 |
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421 |
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422 static ngx_int_t |
2230 | 423 ngx_output_chain_get_buf(ngx_output_chain_ctx_t *ctx, off_t bsize) |
424 { | |
425 size_t size; | |
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426 ngx_buf_t *b, *in; |
2230 | 427 ngx_uint_t recycled; |
428 | |
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429 in = ctx->in->buf; |
2230 | 430 size = ctx->bufs.size; |
431 recycled = 1; | |
432 | |
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433 if (in->last_in_chain) { |
2230 | 434 |
435 if (bsize < (off_t) size) { | |
436 | |
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437 /* |
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438 * allocate a small temp buf for a small last buf |
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439 * or its small last part |
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440 */ |
2230 | 441 |
442 size = (size_t) bsize; | |
443 recycled = 0; | |
444 | |
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445 } else if (!ctx->directio |
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446 && ctx->bufs.num == 1 |
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447 && (bsize < (off_t) (size + size / 4))) |
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448 { |
2230 | 449 /* |
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450 * allocate a temp buf that equals to a last buf, |
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451 * if there is no directio, the last buf size is lesser |
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452 * than 1.25 of bufs.size and the temp buf is single |
2230 | 453 */ |
454 | |
455 size = (size_t) bsize; | |
456 recycled = 0; | |
457 } | |
458 } | |
459 | |
460 b = ngx_calloc_buf(ctx->pool); | |
461 if (b == NULL) { | |
462 return NGX_ERROR; | |
463 } | |
464 | |
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465 if (ctx->directio) { |
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466 |
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467 /* |
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468 * allocate block aligned to a disk sector size to enable |
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469 * userland buffer direct usage conjunctly with directio |
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470 */ |
2230 | 471 |
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472 b->start = ngx_pmemalign(ctx->pool, size, (size_t) ctx->alignment); |
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473 if (b->start == NULL) { |
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474 return NGX_ERROR; |
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475 } |
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476 |
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477 } else { |
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478 b->start = ngx_palloc(ctx->pool, size); |
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479 if (b->start == NULL) { |
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480 return NGX_ERROR; |
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481 } |
2230 | 482 } |
483 | |
484 b->pos = b->start; | |
485 b->last = b->start; | |
486 b->end = b->last + size; | |
487 b->temporary = 1; | |
488 b->tag = ctx->tag; | |
489 b->recycled = recycled; | |
490 | |
491 ctx->buf = b; | |
492 ctx->allocated++; | |
493 | |
494 return NGX_OK; | |
495 } | |
496 | |
497 | |
498 static ngx_int_t | |
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499 ngx_output_chain_copy_buf(ngx_output_chain_ctx_t *ctx) |
160
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500 { |
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501 off_t size; |
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502 ssize_t n; |
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503 ngx_buf_t *src, *dst; |
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504 ngx_uint_t sendfile; |
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505 |
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506 src = ctx->in->buf; |
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507 dst = ctx->buf; |
160
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508 |
343
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509 size = ngx_buf_size(src); |
3515 | 510 size = ngx_min(size, dst->end - dst->pos); |
160
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|
511 |
6819
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Fixed spelling of logical AND operator, no functional changes.
Sergey Kandaurov <pluknet@nginx.com>
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|
512 sendfile = ctx->sendfile && !ctx->directio; |
2231
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513 |
469 | 514 #if (NGX_SENDFILE_LIMIT) |
515 | |
516 if (src->in_file && src->file_pos >= NGX_SENDFILE_LIMIT) { | |
517 sendfile = 0; | |
518 } | |
519 | |
520 #endif | |
521 | |
343
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522 if (ngx_buf_in_memory(src)) { |
473 | 523 ngx_memcpy(dst->pos, src->pos, (size_t) size); |
524 src->pos += (size_t) size; | |
525 dst->last += (size_t) size; | |
160
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|
526 |
455 | 527 if (src->in_file) { |
528 | |
529 if (sendfile) { | |
530 dst->in_file = 1; | |
531 dst->file = src->file; | |
532 dst->file_pos = src->file_pos; | |
533 dst->file_last = src->file_pos + size; | |
534 | |
535 } else { | |
536 dst->in_file = 0; | |
537 } | |
538 | |
160
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|
539 src->file_pos += size; |
452 | 540 |
541 } else { | |
542 dst->in_file = 0; | |
160
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543 } |
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|
544 |
1227
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545 if (src->pos == src->last) { |
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|
546 dst->flush = src->flush; |
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|
547 dst->last_buf = src->last_buf; |
2899
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fix XSLT filter in SSI subrequests
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|
548 dst->last_in_chain = src->last_in_chain; |
160
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549 } |
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|
550 |
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551 } else { |
2248
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552 |
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553 #if (NGX_HAVE_ALIGNED_DIRECTIO) |
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554 |
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555 if (ctx->unaligned) { |
3164
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556 if (ngx_directio_off(src->file->fd) == NGX_FILE_ERROR) { |
2248
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557 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, ngx_errno, |
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558 ngx_directio_off_n " \"%s\" failed", |
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559 src->file->name.data); |
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560 } |
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|
561 } |
1adec90a0e46
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562 |
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|
563 #endif |
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|
564 |
3052
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
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2910
diff
changeset
|
565 #if (NGX_HAVE_FILE_AIO) |
3119
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fix case when the output filter should add incoming buffers
Igor Sysoev <igor@sysoev.ru>
parents:
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|
566 if (ctx->aio_handler) { |
3052
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FreeBSD and Linux AIO support
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|
567 n = ngx_file_aio_read(src->file, dst->pos, (size_t) size, |
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|
568 src->file_pos, ctx->pool); |
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FreeBSD and Linux AIO support
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|
569 if (n == NGX_AGAIN) { |
3119
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|
570 ctx->aio_handler(ctx, src->file); |
3052
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FreeBSD and Linux AIO support
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571 return NGX_AGAIN; |
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FreeBSD and Linux AIO support
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|
572 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
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changeset
|
573 |
6022
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
parents:
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diff
changeset
|
574 } else |
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
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|
575 #endif |
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
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5980
diff
changeset
|
576 #if (NGX_THREADS) |
6441
9fd738b85fad
Threads: task pointer stored in ngx_file_t.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6423
diff
changeset
|
577 if (ctx->thread_handler) { |
9fd738b85fad
Threads: task pointer stored in ngx_file_t.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6423
diff
changeset
|
578 src->file->thread_task = ctx->thread_task; |
9fd738b85fad
Threads: task pointer stored in ngx_file_t.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6423
diff
changeset
|
579 src->file->thread_handler = ctx->thread_handler; |
9fd738b85fad
Threads: task pointer stored in ngx_file_t.
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parents:
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diff
changeset
|
580 src->file->thread_ctx = ctx->filter_ctx; |
9fd738b85fad
Threads: task pointer stored in ngx_file_t.
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6423
diff
changeset
|
581 |
9fd738b85fad
Threads: task pointer stored in ngx_file_t.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6423
diff
changeset
|
582 n = ngx_thread_read(src->file, dst->pos, (size_t) size, |
9fd738b85fad
Threads: task pointer stored in ngx_file_t.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6423
diff
changeset
|
583 src->file_pos, ctx->pool); |
6022
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
parents:
5980
diff
changeset
|
584 if (n == NGX_AGAIN) { |
6441
9fd738b85fad
Threads: task pointer stored in ngx_file_t.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6423
diff
changeset
|
585 ctx->thread_task = src->file->thread_task; |
6022
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
parents:
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changeset
|
586 return NGX_AGAIN; |
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
parents:
5980
diff
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|
587 } |
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
parents:
5980
diff
changeset
|
588 |
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
parents:
5980
diff
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|
589 } else |
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
parents:
5980
diff
changeset
|
590 #endif |
1fdba317ee6d
Added support for offloading read() in thread pools.
Valentin Bartenev <vbart@nginx.com>
parents:
5980
diff
changeset
|
591 { |
3052
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FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
2910
diff
changeset
|
592 n = ngx_read_file(src->file, dst->pos, (size_t) size, |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
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|
593 src->file_pos); |
6060225e9261
FreeBSD and Linux AIO support
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parents:
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diff
changeset
|
594 } |
6060225e9261
FreeBSD and Linux AIO support
Igor Sysoev <igor@sysoev.ru>
parents:
2910
diff
changeset
|
595 |
2248
1adec90a0e46
disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
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2245
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|
596 #if (NGX_HAVE_ALIGNED_DIRECTIO) |
1adec90a0e46
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Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
597 |
1adec90a0e46
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|
598 if (ctx->unaligned) { |
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|
599 ngx_err_t err; |
1adec90a0e46
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2245
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changeset
|
600 |
1adec90a0e46
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|
601 err = ngx_errno; |
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2245
diff
changeset
|
602 |
3164
b1b1775698d5
uniform ngx_directio_on/off() interface with other file functions
Igor Sysoev <igor@sysoev.ru>
parents:
3147
diff
changeset
|
603 if (ngx_directio_on(src->file->fd) == NGX_FILE_ERROR) { |
2248
1adec90a0e46
disable directio for unaligned reads in Linux
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parents:
2245
diff
changeset
|
604 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, ngx_errno, |
1adec90a0e46
disable directio for unaligned reads in Linux
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changeset
|
605 ngx_directio_on_n " \"%s\" failed", |
1adec90a0e46
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parents:
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diff
changeset
|
606 src->file->name.data); |
1adec90a0e46
disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents:
2245
diff
changeset
|
607 } |
1adec90a0e46
disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents:
2245
diff
changeset
|
608 |
1adec90a0e46
disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
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changeset
|
609 ngx_set_errno(err); |
1adec90a0e46
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parents:
2245
diff
changeset
|
610 |
1adec90a0e46
disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
611 ctx->unaligned = 0; |
1adec90a0e46
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Igor Sysoev <igor@sysoev.ru>
parents:
2245
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changeset
|
612 } |
1adec90a0e46
disable directio for unaligned reads in Linux
Igor Sysoev <igor@sysoev.ru>
parents:
2245
diff
changeset
|
613 |
1adec90a0e46
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diff
changeset
|
614 #endif |
1adec90a0e46
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changeset
|
615 |
160
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changeset
|
616 if (n == NGX_ERROR) { |
517 | 617 return (ngx_int_t) n; |
160
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parents:
diff
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|
618 } |
e7e094d34162
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parents:
diff
changeset
|
619 |
473 | 620 if (n != size) { |
2231
8564129d49b6
*) handle unaligned file part for directio
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2230
diff
changeset
|
621 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0, |
2245
8a98616abb73
add filename to the log message
Igor Sysoev <igor@sysoev.ru>
parents:
2240
diff
changeset
|
622 ngx_read_file_n " read only %z of %O from \"%s\"", |
8a98616abb73
add filename to the log message
Igor Sysoev <igor@sysoev.ru>
parents:
2240
diff
changeset
|
623 n, size, src->file->name.data); |
3147
cbb1add4a6fe
fail if file size was changed
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parents:
3119
diff
changeset
|
624 return NGX_ERROR; |
160
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parents:
diff
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|
625 } |
e7e094d34162
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parents:
diff
changeset
|
626 |
e7e094d34162
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parents:
diff
changeset
|
627 dst->last += n; |
e7e094d34162
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parents:
diff
changeset
|
628 |
452 | 629 if (sendfile) { |
630 dst->in_file = 1; | |
631 dst->file = src->file; | |
632 dst->file_pos = src->file_pos; | |
455 | 633 dst->file_last = src->file_pos + n; |
452 | 634 |
635 } else { | |
343
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diff
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|
636 dst->in_file = 0; |
160
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parents:
diff
changeset
|
637 } |
e7e094d34162
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parents:
diff
changeset
|
638 |
455 | 639 src->file_pos += n; |
640 | |
1238 | 641 if (src->file_pos == src->file_last) { |
1227
3e40f3e4376c
inherit flush flag, this fixes https proxying
Igor Sysoev <igor@sysoev.ru>
parents:
1226
diff
changeset
|
642 dst->flush = src->flush; |
3e40f3e4376c
inherit flush flag, this fixes https proxying
Igor Sysoev <igor@sysoev.ru>
parents:
1226
diff
changeset
|
643 dst->last_buf = src->last_buf; |
2899
61d5b945730a
fix XSLT filter in SSI subrequests
Igor Sysoev <igor@sysoev.ru>
parents:
2316
diff
changeset
|
644 dst->last_in_chain = src->last_in_chain; |
160
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parents:
diff
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|
645 } |
e7e094d34162
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parents:
diff
changeset
|
646 } |
e7e094d34162
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parents:
diff
changeset
|
647 |
e7e094d34162
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parents:
diff
changeset
|
648 return NGX_OK; |
e7e094d34162
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parents:
diff
changeset
|
649 } |
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
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parents:
160
diff
changeset
|
650 |
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
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parents:
160
diff
changeset
|
651 |
499 | 652 ngx_int_t |
653 ngx_chain_writer(void *data, ngx_chain_t *in) | |
162
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parents:
160
diff
changeset
|
654 { |
166
389d7ee9fa60
nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
655 ngx_chain_writer_ctx_t *ctx = data; |
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
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parents:
160
diff
changeset
|
656 |
1962 | 657 off_t size; |
6046
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
658 ngx_chain_t *cl, *ln, *chain; |
1962 | 659 ngx_connection_t *c; |
660 | |
661 c = ctx->connection; | |
162
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diff
changeset
|
662 |
473 | 663 for (size = 0; in; in = in->next) { |
664 | |
665 if (ngx_buf_size(in->buf) == 0 && !ngx_buf_special(in->buf)) { | |
6045
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
666 |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
667 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
668 "zero size buf in chain writer " |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
669 "t:%d r:%d f:%d %p %p-%p %p %O-%O", |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
670 in->buf->temporary, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
671 in->buf->recycled, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
672 in->buf->in_file, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
673 in->buf->start, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
674 in->buf->pos, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
675 in->buf->last, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
676 in->buf->file, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
677 in->buf->file_pos, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
678 in->buf->file_last); |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
679 |
473 | 680 ngx_debug_point(); |
6045
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
681 |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
682 continue; |
473 | 683 } |
7401
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
684 |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
685 if (ngx_buf_size(in->buf) < 0) { |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
686 |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
687 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
688 "negative size buf in chain writer " |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
689 "t:%d r:%d f:%d %p %p-%p %p %O-%O", |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
690 in->buf->temporary, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
691 in->buf->recycled, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
692 in->buf->in_file, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
693 in->buf->start, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
694 in->buf->pos, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
695 in->buf->last, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
696 in->buf->file, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
697 in->buf->file_pos, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
698 in->buf->file_last); |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
699 |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
700 ngx_debug_point(); |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
701 |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
702 return NGX_ERROR; |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
703 } |
473 | 704 |
705 size += ngx_buf_size(in->buf); | |
408
d6e2b445c1b8
nginx-0.0.10-2004-08-27-19:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
403
diff
changeset
|
706 |
1962 | 707 ngx_log_debug2(NGX_LOG_DEBUG_CORE, c->log, 0, |
1226 | 708 "chain writer buf fl:%d s:%uO", |
709 in->buf->flush, ngx_buf_size(in->buf)); | |
408
d6e2b445c1b8
nginx-0.0.10-2004-08-27-19:40:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
403
diff
changeset
|
710 |
501 | 711 cl = ngx_alloc_chain_link(ctx->pool); |
712 if (cl == NULL) { | |
461 | 713 return NGX_ERROR; |
714 } | |
501 | 715 |
461 | 716 cl->buf = in->buf; |
717 cl->next = NULL; | |
162
96993d4d5067
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Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
718 *ctx->last = cl; |
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
719 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
|
720 } |
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
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parents:
160
diff
changeset
|
721 |
1962 | 722 ngx_log_debug1(NGX_LOG_DEBUG_CORE, c->log, 0, |
461 | 723 "chain writer in: %p", ctx->out); |
291
117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
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parents:
257
diff
changeset
|
724 |
473 | 725 for (cl = ctx->out; cl; cl = cl->next) { |
726 | |
727 if (ngx_buf_size(cl->buf) == 0 && !ngx_buf_special(cl->buf)) { | |
6045
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
728 |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
729 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
730 "zero size buf in chain writer " |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
731 "t:%d r:%d f:%d %p %p-%p %p %O-%O", |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
732 cl->buf->temporary, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
733 cl->buf->recycled, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
734 cl->buf->in_file, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
735 cl->buf->start, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
736 cl->buf->pos, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
737 cl->buf->last, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
738 cl->buf->file, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
739 cl->buf->file_pos, |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
740 cl->buf->file_last); |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
741 |
473 | 742 ngx_debug_point(); |
6045
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
743 |
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
744 continue; |
473 | 745 } |
7401
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
746 |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
747 if (ngx_buf_size(cl->buf) < 0) { |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
748 |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
749 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
750 "negative size buf in chain writer " |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
751 "t:%d r:%d f:%d %p %p-%p %p %O-%O", |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
752 cl->buf->temporary, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
753 cl->buf->recycled, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
754 cl->buf->in_file, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
755 cl->buf->start, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
756 cl->buf->pos, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
757 cl->buf->last, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
758 cl->buf->file, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
759 cl->buf->file_pos, |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
760 cl->buf->file_last); |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
761 |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
762 ngx_debug_point(); |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
763 |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
764 return NGX_ERROR; |
a7ff19afbb14
Negative size buffers detection.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6819
diff
changeset
|
765 } |
473 | 766 |
767 size += ngx_buf_size(cl->buf); | |
768 } | |
769 | |
1962 | 770 if (size == 0 && !c->buffered) { |
473 | 771 return NGX_OK; |
772 } | |
773 | |
6046
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
774 chain = c->send_chain(c, ctx->out, ctx->limit); |
162
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Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
775 |
1962 | 776 ngx_log_debug1(NGX_LOG_DEBUG_CORE, c->log, 0, |
6046
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
777 "chain writer out: %p", chain); |
291
117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
257
diff
changeset
|
778 |
6046
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
779 if (chain == NGX_CHAIN_ERROR) { |
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
780 return NGX_ERROR; |
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
781 } |
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
782 |
8673
862f6130d357
Upstream: sendfile_max_chunk support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7401
diff
changeset
|
783 if (chain && c->write->ready) { |
862f6130d357
Upstream: sendfile_max_chunk support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7401
diff
changeset
|
784 ngx_post_event(c->write, &ngx_posted_next_events); |
862f6130d357
Upstream: sendfile_max_chunk support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7401
diff
changeset
|
785 } |
862f6130d357
Upstream: sendfile_max_chunk support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7401
diff
changeset
|
786 |
6046
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
787 for (cl = ctx->out; cl && cl != chain; /* void */) { |
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
788 ln = cl; |
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
789 cl = cl->next; |
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
790 ngx_free_chain(ctx->pool, ln); |
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
791 } |
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
792 |
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
793 ctx->out = chain; |
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
794 |
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
795 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
|
796 ctx->last = &ctx->out; |
1211 | 797 |
1962 | 798 if (!c->buffered) { |
1215
fb3ff245c96b
an request body might not be passed to backend,
Igor Sysoev <igor@sysoev.ru>
parents:
1211
diff
changeset
|
799 return NGX_OK; |
fb3ff245c96b
an request body might not be passed to backend,
Igor Sysoev <igor@sysoev.ru>
parents:
1211
diff
changeset
|
800 } |
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
801 } |
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
802 |
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
803 return NGX_AGAIN; |
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
804 } |