Mercurial > hg > nginx
annotate src/core/ngx_output_chain.c @ 6719:cebf5fed00bf
Modules compatibility: removed unneeded IPV6_V6ONLY checks.
The IPV6_V6ONLY macro is now checked only while parsing appropriate flag
and when using the macro.
The ipv6only field in listen structures is always initialized to 1,
even if not supported on a given platform. This is expected to prevent
a module compiled without IPV6_V6ONLY from accidentally creating dual
sockets if loaded into main binary with proper IPV6_V6ONLY support.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 03 Oct 2016 15:58:25 +0300 |
| parents | 9fd738b85fad |
| children | 4395758d08e6 |
| 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. |
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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); |
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32 #if (NGX_HAVE_AIO_SENDFILE) |
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33 static ngx_int_t ngx_output_chain_aio_setup(ngx_output_chain_ctx_t *ctx, |
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34 ngx_file_t *file); |
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35 #endif |
| 469 | 36 static ngx_int_t ngx_output_chain_add_copy(ngx_pool_t *pool, |
| 499 | 37 ngx_chain_t **chain, ngx_chain_t *in); |
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38 static ngx_int_t ngx_output_chain_align_file_buf(ngx_output_chain_ctx_t *ctx, |
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39 off_t bsize); |
| 2230 | 40 static ngx_int_t ngx_output_chain_get_buf(ngx_output_chain_ctx_t *ctx, |
| 41 off_t bsize); | |
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42 static ngx_int_t ngx_output_chain_copy_buf(ngx_output_chain_ctx_t *ctx); |
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43 |
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44 |
| 499 | 45 ngx_int_t |
| 46 ngx_output_chain(ngx_output_chain_ctx_t *ctx, ngx_chain_t *in) | |
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47 { |
| 473 | 48 off_t bsize; |
| 597 | 49 ngx_int_t rc, last; |
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50 ngx_chain_t *cl, *out, **last_out; |
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51 |
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52 if (ctx->in == NULL && ctx->busy == NULL |
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53 #if (NGX_HAVE_FILE_AIO || NGX_THREADS) |
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54 && !ctx->aio |
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55 #endif |
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56 ) |
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57 { |
| 469 | 58 /* |
| 59 * the short path for the case when the ctx->in and ctx->busy chains | |
| 60 * are empty, the incoming chain is empty too or has the single buf | |
| 61 * that does not require the copy | |
| 62 */ | |
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63 |
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64 if (in == NULL) { |
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65 return ctx->output_filter(ctx->filter_ctx, in); |
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66 } |
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67 |
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68 if (in->next == NULL |
| 469 | 69 #if (NGX_SENDFILE_LIMIT) |
| 70 && !(in->buf->in_file && in->buf->file_last > NGX_SENDFILE_LIMIT) | |
| 71 #endif | |
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72 && ngx_output_chain_as_is(ctx, in->buf)) |
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73 { |
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74 return ctx->output_filter(ctx->filter_ctx, in); |
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75 } |
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76 } |
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77 |
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78 /* add the incoming buf to the chain ctx->in */ |
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79 |
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80 if (in) { |
| 469 | 81 if (ngx_output_chain_add_copy(ctx->pool, &ctx->in, in) == NGX_ERROR) { |
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82 return NGX_ERROR; |
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83 } |
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84 } |
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85 |
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86 out = NULL; |
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87 last_out = &out; |
| 499 | 88 last = NGX_NONE; |
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89 |
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90 for ( ;; ) { |
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91 |
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92 #if (NGX_HAVE_FILE_AIO || NGX_THREADS) |
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93 if (ctx->aio) { |
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94 return NGX_AGAIN; |
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95 } |
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96 #endif |
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97 |
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98 while (ctx->in) { |
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99 |
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100 /* |
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101 * cycle while there are the ctx->in bufs |
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102 * and there are the free output bufs to copy in |
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103 */ |
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104 |
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105 bsize = ngx_buf_size(ctx->in->buf); |
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106 |
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107 if (bsize == 0 && !ngx_buf_special(ctx->in->buf)) { |
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108 |
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109 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, 0, |
| 483 | 110 "zero size buf in output " |
| 111 "t:%d r:%d f:%d %p %p-%p %p %O-%O", | |
| 112 ctx->in->buf->temporary, | |
| 113 ctx->in->buf->recycled, | |
| 114 ctx->in->buf->in_file, | |
| 115 ctx->in->buf->start, | |
| 116 ctx->in->buf->pos, | |
| 117 ctx->in->buf->last, | |
| 118 ctx->in->buf->file, | |
| 119 ctx->in->buf->file_pos, | |
| 120 ctx->in->buf->file_last); | |
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121 |
| 473 | 122 ngx_debug_point(); |
| 123 | |
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124 ctx->in = ctx->in->next; |
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125 |
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126 continue; |
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127 } |
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128 |
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129 if (ngx_output_chain_as_is(ctx, ctx->in->buf)) { |
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130 |
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131 /* move the chain link to the output chain */ |
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132 |
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133 cl = ctx->in; |
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134 ctx->in = cl->next; |
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135 |
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136 *last_out = cl; |
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137 last_out = &cl->next; |
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138 cl->next = NULL; |
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139 |
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140 continue; |
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141 } |
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142 |
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143 if (ctx->buf == NULL) { |
|
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144 |
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145 rc = ngx_output_chain_align_file_buf(ctx, bsize); |
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146 |
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147 if (rc == NGX_ERROR) { |
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148 return NGX_ERROR; |
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149 } |
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150 |
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151 if (rc != NGX_OK) { |
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152 |
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153 if (ctx->free) { |
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154 |
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155 /* get the free buf */ |
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156 |
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157 cl = ctx->free; |
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158 ctx->buf = cl->buf; |
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159 ctx->free = cl->next; |
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160 |
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161 ngx_free_chain(ctx->pool, cl); |
|
160
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162 |
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163 } else if (out || ctx->allocated == ctx->bufs.num) { |
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164 |
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165 break; |
|
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166 |
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167 } else if (ngx_output_chain_get_buf(ctx, bsize) != NGX_OK) { |
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168 return NGX_ERROR; |
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169 } |
|
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170 } |
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171 } |
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172 |
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173 rc = ngx_output_chain_copy_buf(ctx); |
|
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174 |
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175 if (rc == NGX_ERROR) { |
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176 return rc; |
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177 } |
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178 |
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179 if (rc == NGX_AGAIN) { |
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180 if (out) { |
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181 break; |
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182 } |
|
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183 |
|
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184 return rc; |
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185 } |
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186 |
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187 /* delete the completed buf from the ctx->in chain */ |
|
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188 |
|
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189 if (ngx_buf_size(ctx->in->buf) == 0) { |
|
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190 ctx->in = ctx->in->next; |
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191 } |
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192 |
| 501 | 193 cl = ngx_alloc_chain_link(ctx->pool); |
| 194 if (cl == NULL) { | |
| 461 | 195 return NGX_ERROR; |
| 196 } | |
| 501 | 197 |
| 461 | 198 cl->buf = ctx->buf; |
| 199 cl->next = NULL; | |
|
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200 *last_out = cl; |
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201 last_out = &cl->next; |
|
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202 ctx->buf = NULL; |
|
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203 } |
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204 |
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205 if (out == NULL && last != NGX_NONE) { |
| 509 | 206 |
| 207 if (ctx->in) { | |
| 208 return NGX_AGAIN; | |
| 209 } | |
| 210 | |
|
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211 return last; |
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212 } |
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213 |
|
294
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214 last = ctx->output_filter(ctx->filter_ctx, out); |
|
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215 |
| 569 | 216 if (last == NGX_ERROR || last == NGX_DONE) { |
| 217 return last; | |
| 218 } | |
| 219 | |
|
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220 ngx_chain_update_chains(ctx->pool, &ctx->free, &ctx->busy, &out, |
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221 ctx->tag); |
|
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222 last_out = &out; |
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223 } |
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224 } |
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225 |
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226 |
| 467 | 227 static ngx_inline ngx_int_t |
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228 ngx_output_chain_as_is(ngx_output_chain_ctx_t *ctx, ngx_buf_t *buf) |
|
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229 { |
| 469 | 230 ngx_uint_t sendfile; |
| 231 | |
|
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232 if (ngx_buf_special(buf)) { |
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233 return 1; |
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234 } |
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235 |
|
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236 #if (NGX_THREADS) |
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237 if (buf->in_file) { |
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238 buf->file->thread_handler = ctx->thread_handler; |
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239 buf->file->thread_ctx = ctx->filter_ctx; |
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240 } |
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241 #endif |
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242 |
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243 if (buf->in_file && buf->file->directio) { |
|
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244 return 0; |
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245 } |
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246 |
| 469 | 247 sendfile = ctx->sendfile; |
| 248 | |
| 249 #if (NGX_SENDFILE_LIMIT) | |
| 250 | |
| 251 if (buf->in_file && buf->file_pos >= NGX_SENDFILE_LIMIT) { | |
| 252 sendfile = 0; | |
| 253 } | |
| 254 | |
| 255 #endif | |
| 256 | |
| 257 if (!sendfile) { | |
| 455 | 258 |
|
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259 if (!ngx_buf_in_memory(buf)) { |
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260 return 0; |
|
170
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261 } |
|
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262 |
|
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263 buf->in_file = 0; |
|
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264 } |
|
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265 |
|
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266 #if (NGX_HAVE_AIO_SENDFILE) |
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267 if (ctx->aio_preload && buf->in_file) { |
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268 (void) ngx_output_chain_aio_setup(ctx, buf->file); |
|
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269 } |
|
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270 #endif |
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271 |
|
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272 if (ctx->need_in_memory && !ngx_buf_in_memory(buf)) { |
|
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273 return 0; |
|
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274 } |
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275 |
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276 if (ctx->need_in_temp && (buf->memory || buf->mmap)) { |
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277 return 0; |
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278 } |
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279 |
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280 return 1; |
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281 } |
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282 |
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283 |
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284 #if (NGX_HAVE_AIO_SENDFILE) |
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285 |
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286 static ngx_int_t |
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287 ngx_output_chain_aio_setup(ngx_output_chain_ctx_t *ctx, ngx_file_t *file) |
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288 { |
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289 ngx_event_aio_t *aio; |
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290 |
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291 if (file->aio == NULL && ngx_file_aio_init(file, ctx->pool) != NGX_OK) { |
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292 return NGX_ERROR; |
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293 } |
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294 |
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295 aio = file->aio; |
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296 |
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297 aio->data = ctx->filter_ctx; |
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298 aio->preload_handler = ctx->aio_preload; |
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299 |
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300 return NGX_OK; |
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301 } |
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302 |
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303 #endif |
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304 |
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305 |
| 499 | 306 static ngx_int_t |
| 307 ngx_output_chain_add_copy(ngx_pool_t *pool, ngx_chain_t **chain, | |
| 308 ngx_chain_t *in) | |
| 469 | 309 { |
| 310 ngx_chain_t *cl, **ll; | |
| 311 #if (NGX_SENDFILE_LIMIT) | |
| 312 ngx_buf_t *b, *buf; | |
| 313 #endif | |
| 314 | |
| 315 ll = chain; | |
| 316 | |
| 317 for (cl = *chain; cl; cl = cl->next) { | |
| 318 ll = &cl->next; | |
| 319 } | |
| 320 | |
| 321 while (in) { | |
| 322 | |
| 501 | 323 cl = ngx_alloc_chain_link(pool); |
| 324 if (cl == NULL) { | |
| 469 | 325 return NGX_ERROR; |
| 326 } | |
| 327 | |
| 328 #if (NGX_SENDFILE_LIMIT) | |
| 329 | |
| 330 buf = in->buf; | |
| 331 | |
| 332 if (buf->in_file | |
| 333 && buf->file_pos < NGX_SENDFILE_LIMIT | |
| 334 && buf->file_last > NGX_SENDFILE_LIMIT) | |
| 335 { | |
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336 /* split a file buf on two bufs by the sendfile limit */ |
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337 |
| 501 | 338 b = ngx_calloc_buf(pool); |
| 339 if (b == NULL) { | |
| 469 | 340 return NGX_ERROR; |
| 341 } | |
| 342 | |
| 343 ngx_memcpy(b, buf, sizeof(ngx_buf_t)); | |
| 344 | |
| 345 if (ngx_buf_in_memory(buf)) { | |
| 346 buf->pos += (ssize_t) (NGX_SENDFILE_LIMIT - buf->file_pos); | |
| 347 b->last = buf->pos; | |
| 348 } | |
| 349 | |
| 350 buf->file_pos = NGX_SENDFILE_LIMIT; | |
| 351 b->file_last = NGX_SENDFILE_LIMIT; | |
| 352 | |
| 353 cl->buf = b; | |
| 354 | |
| 355 } else { | |
| 356 cl->buf = buf; | |
| 357 in = in->next; | |
| 358 } | |
| 359 | |
| 360 #else | |
| 361 cl->buf = in->buf; | |
| 362 in = in->next; | |
| 363 | |
| 364 #endif | |
| 365 | |
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366 cl->next = NULL; |
| 469 | 367 *ll = cl; |
| 368 ll = &cl->next; | |
| 369 } | |
| 370 | |
| 371 return NGX_OK; | |
| 372 } | |
| 373 | |
| 374 | |
| 499 | 375 static ngx_int_t |
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376 ngx_output_chain_align_file_buf(ngx_output_chain_ctx_t *ctx, off_t bsize) |
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377 { |
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378 size_t size; |
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379 ngx_buf_t *in; |
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380 |
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381 in = ctx->in->buf; |
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382 |
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383 if (in->file == NULL || !in->file->directio) { |
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384 return NGX_DECLINED; |
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385 } |
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386 |
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387 ctx->directio = 1; |
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388 |
| 3053 | 389 size = (size_t) (in->file_pos - (in->file_pos & ~(ctx->alignment - 1))); |
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390 |
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391 if (size == 0) { |
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392 |
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393 if (bsize >= (off_t) ctx->bufs.size) { |
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394 return NGX_DECLINED; |
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395 } |
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396 |
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397 size = (size_t) bsize; |
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398 |
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399 } else { |
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400 size = (size_t) ctx->alignment - size; |
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401 |
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402 if ((off_t) size > bsize) { |
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403 size = (size_t) bsize; |
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404 } |
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405 } |
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406 |
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407 ctx->buf = ngx_create_temp_buf(ctx->pool, size); |
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408 if (ctx->buf == NULL) { |
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409 return NGX_ERROR; |
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410 } |
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411 |
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412 /* |
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413 * we do not set ctx->buf->tag, because we do not want |
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414 * to reuse the buf via ctx->free list |
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415 */ |
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416 |
|
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417 #if (NGX_HAVE_ALIGNED_DIRECTIO) |
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418 ctx->unaligned = 1; |
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419 #endif |
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420 |
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421 return NGX_OK; |
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422 } |
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423 |
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424 |
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425 static ngx_int_t |
| 2230 | 426 ngx_output_chain_get_buf(ngx_output_chain_ctx_t *ctx, off_t bsize) |
| 427 { | |
| 428 size_t size; | |
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429 ngx_buf_t *b, *in; |
| 2230 | 430 ngx_uint_t recycled; |
| 431 | |
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432 in = ctx->in->buf; |
| 2230 | 433 size = ctx->bufs.size; |
| 434 recycled = 1; | |
| 435 | |
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436 if (in->last_in_chain) { |
| 2230 | 437 |
| 438 if (bsize < (off_t) size) { | |
| 439 | |
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440 /* |
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441 * allocate a small temp buf for a small last buf |
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442 * or its small last part |
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443 */ |
| 2230 | 444 |
| 445 size = (size_t) bsize; | |
| 446 recycled = 0; | |
| 447 | |
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448 } else if (!ctx->directio |
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449 && ctx->bufs.num == 1 |
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450 && (bsize < (off_t) (size + size / 4))) |
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451 { |
| 2230 | 452 /* |
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453 * allocate a temp buf that equals to a last buf, |
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454 * if there is no directio, the last buf size is lesser |
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455 * than 1.25 of bufs.size and the temp buf is single |
| 2230 | 456 */ |
| 457 | |
| 458 size = (size_t) bsize; | |
| 459 recycled = 0; | |
| 460 } | |
| 461 } | |
| 462 | |
| 463 b = ngx_calloc_buf(ctx->pool); | |
| 464 if (b == NULL) { | |
| 465 return NGX_ERROR; | |
| 466 } | |
| 467 | |
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468 if (ctx->directio) { |
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469 |
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470 /* |
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471 * allocate block aligned to a disk sector size to enable |
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472 * userland buffer direct usage conjunctly with directio |
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473 */ |
| 2230 | 474 |
|
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475 b->start = ngx_pmemalign(ctx->pool, size, (size_t) ctx->alignment); |
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476 if (b->start == NULL) { |
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477 return NGX_ERROR; |
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478 } |
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479 |
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480 } else { |
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481 b->start = ngx_palloc(ctx->pool, size); |
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482 if (b->start == NULL) { |
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483 return NGX_ERROR; |
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484 } |
| 2230 | 485 } |
| 486 | |
| 487 b->pos = b->start; | |
| 488 b->last = b->start; | |
| 489 b->end = b->last + size; | |
| 490 b->temporary = 1; | |
| 491 b->tag = ctx->tag; | |
| 492 b->recycled = recycled; | |
| 493 | |
| 494 ctx->buf = b; | |
| 495 ctx->allocated++; | |
| 496 | |
| 497 return NGX_OK; | |
| 498 } | |
| 499 | |
| 500 | |
| 501 static ngx_int_t | |
|
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502 ngx_output_chain_copy_buf(ngx_output_chain_ctx_t *ctx) |
|
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503 { |
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504 off_t size; |
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505 ssize_t n; |
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506 ngx_buf_t *src, *dst; |
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507 ngx_uint_t sendfile; |
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508 |
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509 src = ctx->in->buf; |
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510 dst = ctx->buf; |
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511 |
|
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512 size = ngx_buf_size(src); |
| 3515 | 513 size = ngx_min(size, dst->end - dst->pos); |
|
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514 |
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515 sendfile = ctx->sendfile & !ctx->directio; |
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516 |
| 469 | 517 #if (NGX_SENDFILE_LIMIT) |
| 518 | |
| 519 if (src->in_file && src->file_pos >= NGX_SENDFILE_LIMIT) { | |
| 520 sendfile = 0; | |
| 521 } | |
| 522 | |
| 523 #endif | |
| 524 | |
|
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525 if (ngx_buf_in_memory(src)) { |
| 473 | 526 ngx_memcpy(dst->pos, src->pos, (size_t) size); |
| 527 src->pos += (size_t) size; | |
| 528 dst->last += (size_t) size; | |
|
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529 |
| 455 | 530 if (src->in_file) { |
| 531 | |
| 532 if (sendfile) { | |
| 533 dst->in_file = 1; | |
| 534 dst->file = src->file; | |
| 535 dst->file_pos = src->file_pos; | |
| 536 dst->file_last = src->file_pos + size; | |
| 537 | |
| 538 } else { | |
| 539 dst->in_file = 0; | |
| 540 } | |
| 541 | |
|
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542 src->file_pos += size; |
| 452 | 543 |
| 544 } else { | |
| 545 dst->in_file = 0; | |
|
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546 } |
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547 |
|
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548 if (src->pos == src->last) { |
|
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549 dst->flush = src->flush; |
|
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550 dst->last_buf = src->last_buf; |
|
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551 dst->last_in_chain = src->last_in_chain; |
|
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552 } |
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553 |
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554 } else { |
|
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555 |
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556 #if (NGX_HAVE_ALIGNED_DIRECTIO) |
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557 |
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558 if (ctx->unaligned) { |
|
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559 if (ngx_directio_off(src->file->fd) == NGX_FILE_ERROR) { |
|
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560 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, ngx_errno, |
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561 ngx_directio_off_n " \"%s\" failed", |
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562 src->file->name.data); |
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563 } |
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564 } |
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565 |
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566 #endif |
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567 |
|
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|
568 #if (NGX_HAVE_FILE_AIO) |
|
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|
569 if (ctx->aio_handler) { |
|
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570 n = ngx_file_aio_read(src->file, dst->pos, (size_t) size, |
|
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571 src->file_pos, ctx->pool); |
|
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572 if (n == NGX_AGAIN) { |
|
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573 ctx->aio_handler(ctx, src->file); |
|
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574 return NGX_AGAIN; |
|
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|
575 } |
|
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|
576 |
|
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Added support for offloading read() in thread pools.
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|
577 } else |
|
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Added support for offloading read() in thread pools.
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|
578 #endif |
|
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|
579 #if (NGX_THREADS) |
|
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Threads: task pointer stored in ngx_file_t.
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|
580 if (ctx->thread_handler) { |
|
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changeset
|
581 src->file->thread_task = ctx->thread_task; |
|
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Threads: task pointer stored in ngx_file_t.
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|
582 src->file->thread_handler = ctx->thread_handler; |
|
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|
583 src->file->thread_ctx = ctx->filter_ctx; |
|
9fd738b85fad
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|
584 |
|
9fd738b85fad
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|
585 n = ngx_thread_read(src->file, dst->pos, (size_t) size, |
|
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|
586 src->file_pos, ctx->pool); |
|
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|
587 if (n == NGX_AGAIN) { |
|
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|
588 ctx->thread_task = src->file->thread_task; |
|
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|
589 return NGX_AGAIN; |
|
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|
590 } |
|
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Added support for offloading read() in thread pools.
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|
591 |
|
1fdba317ee6d
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|
592 } else |
|
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|
593 #endif |
|
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|
594 { |
|
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595 n = ngx_read_file(src->file, dst->pos, (size_t) size, |
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596 src->file_pos); |
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597 } |
|
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|
598 |
|
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599 #if (NGX_HAVE_ALIGNED_DIRECTIO) |
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600 |
|
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601 if (ctx->unaligned) { |
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602 ngx_err_t err; |
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603 |
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|
604 err = ngx_errno; |
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|
605 |
|
3164
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|
606 if (ngx_directio_on(src->file->fd) == NGX_FILE_ERROR) { |
|
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|
607 ngx_log_error(NGX_LOG_ALERT, ctx->pool->log, ngx_errno, |
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|
608 ngx_directio_on_n " \"%s\" failed", |
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|
609 src->file->name.data); |
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610 } |
|
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|
611 |
|
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|
612 ngx_set_errno(err); |
|
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|
613 |
|
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|
614 ctx->unaligned = 0; |
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615 } |
|
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|
616 |
|
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617 #endif |
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618 |
|
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|
619 if (n == NGX_ERROR) { |
| 517 | 620 return (ngx_int_t) n; |
|
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
621 } |
|
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
622 |
| 473 | 623 if (n != size) { |
|
2231
8564129d49b6
*) handle unaligned file part for directio
Igor Sysoev <igor@sysoev.ru>
parents:
2230
diff
changeset
|
624 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
|
625 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
|
626 n, size, src->file->name.data); |
|
3147
cbb1add4a6fe
fail if file size was changed
Igor Sysoev <igor@sysoev.ru>
parents:
3119
diff
changeset
|
627 return NGX_ERROR; |
|
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
628 } |
|
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
629 |
|
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
630 dst->last += n; |
|
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
631 |
| 452 | 632 if (sendfile) { |
| 633 dst->in_file = 1; | |
| 634 dst->file = src->file; | |
| 635 dst->file_pos = src->file_pos; | |
| 455 | 636 dst->file_last = src->file_pos + n; |
| 452 | 637 |
| 638 } else { | |
|
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
|
639 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
|
640 } |
|
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
641 |
| 455 | 642 src->file_pos += n; |
| 643 | |
| 1238 | 644 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
|
645 dst->flush = src->flush; |
|
3e40f3e4376c
inherit flush flag, this fixes https proxying
Igor Sysoev <igor@sysoev.ru>
parents:
1226
diff
changeset
|
646 dst->last_buf = src->last_buf; |
|
2899
61d5b945730a
fix XSLT filter in SSI subrequests
Igor Sysoev <igor@sysoev.ru>
parents:
2316
diff
changeset
|
647 dst->last_in_chain = src->last_in_chain; |
|
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
648 } |
|
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
649 } |
|
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
650 |
|
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
651 return NGX_OK; |
|
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
652 } |
|
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
653 |
|
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
654 |
| 499 | 655 ngx_int_t |
| 656 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
|
657 { |
|
166
389d7ee9fa60
nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
658 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
|
659 |
| 1962 | 660 off_t size; |
|
6046
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
661 ngx_chain_t *cl, *ln, *chain; |
| 1962 | 662 ngx_connection_t *c; |
| 663 | |
| 664 c = ctx->connection; | |
|
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
665 |
| 473 | 666 for (size = 0; in; in = in->next) { |
| 667 | |
| 668 #if 1 | |
| 669 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
|
670 |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
671 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
|
672 "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
|
673 "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
|
674 in->buf->temporary, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
675 in->buf->recycled, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
676 in->buf->in_file, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
677 in->buf->start, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
678 in->buf->pos, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
679 in->buf->last, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
680 in->buf->file, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
681 in->buf->file_pos, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
682 in->buf->file_last); |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
683 |
| 473 | 684 ngx_debug_point(); |
|
6045
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
685 |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
686 continue; |
| 473 | 687 } |
| 688 #endif | |
| 689 | |
| 690 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
|
691 |
| 1962 | 692 ngx_log_debug2(NGX_LOG_DEBUG_CORE, c->log, 0, |
| 1226 | 693 "chain writer buf fl:%d s:%uO", |
| 694 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
|
695 |
| 501 | 696 cl = ngx_alloc_chain_link(ctx->pool); |
| 697 if (cl == NULL) { | |
| 461 | 698 return NGX_ERROR; |
| 699 } | |
| 501 | 700 |
| 461 | 701 cl->buf = in->buf; |
| 702 cl->next = NULL; | |
|
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
703 *ctx->last = cl; |
|
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
704 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
|
705 } |
|
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
706 |
| 1962 | 707 ngx_log_debug1(NGX_LOG_DEBUG_CORE, c->log, 0, |
| 461 | 708 "chain writer in: %p", ctx->out); |
|
291
117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
257
diff
changeset
|
709 |
| 473 | 710 for (cl = ctx->out; cl; cl = cl->next) { |
| 711 | |
| 712 #if 1 | |
| 713 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
|
714 |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
715 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
|
716 "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
|
717 "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
|
718 cl->buf->temporary, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
719 cl->buf->recycled, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
720 cl->buf->in_file, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
721 cl->buf->start, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
722 cl->buf->pos, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
723 cl->buf->last, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
724 cl->buf->file, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
725 cl->buf->file_pos, |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
726 cl->buf->file_last); |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
727 |
| 473 | 728 ngx_debug_point(); |
|
6045
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
729 |
|
6ab301ddf469
Output chain: zero size buf alerts in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6022
diff
changeset
|
730 continue; |
| 473 | 731 } |
| 732 #endif | |
| 733 | |
| 734 size += ngx_buf_size(cl->buf); | |
| 735 } | |
| 736 | |
| 1962 | 737 if (size == 0 && !c->buffered) { |
| 473 | 738 return NGX_OK; |
| 739 } | |
| 740 | |
|
6046
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
741 chain = c->send_chain(c, 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
|
742 |
| 1962 | 743 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
|
744 "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
|
745 |
|
6046
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
746 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
|
747 return NGX_ERROR; |
|
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
748 } |
|
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
749 |
|
6046
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
750 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
|
751 ln = cl; |
|
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
752 cl = cl->next; |
|
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
753 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
|
754 } |
|
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
755 |
|
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
756 ctx->out = chain; |
|
66176dfea01e
Output chain: free chain links in ngx_chain_writer().
Maxim Dounin <mdounin@mdounin.ru>
parents:
6045
diff
changeset
|
757 |
|
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
758 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
|
759 ctx->last = &ctx->out; |
| 1211 | 760 |
| 1962 | 761 if (!c->buffered) { |
|
1215
fb3ff245c96b
an request body might not be passed to backend,
Igor Sysoev <igor@sysoev.ru>
parents:
1211
diff
changeset
|
762 return NGX_OK; |
|
fb3ff245c96b
an request body might not be passed to backend,
Igor Sysoev <igor@sysoev.ru>
parents:
1211
diff
changeset
|
763 } |
|
162
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
764 } |
|
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
765 |
|
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
766 return NGX_AGAIN; |
|
96993d4d5067
nginx-0.0.1-2003-10-28-00:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
160
diff
changeset
|
767 } |