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comparison src/http/ngx_http_copy_filter_module.c @ 539:5f4de8cf0d9d

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Merge with current.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 15 Sep 2009 03:43:40 +0400
parents 0161f3197817
children 2b9e388c61f1
comparison
equal deleted inserted replaced
522:40fd8d7b82f9 539:5f4de8cf0d9d
11 11
12 typedef struct { 12 typedef struct {
13 ngx_bufs_t bufs; 13 ngx_bufs_t bufs;
14 } ngx_http_copy_filter_conf_t; 14 } ngx_http_copy_filter_conf_t;
15 15
16
17 #if (NGX_HAVE_FILE_AIO)
18 static void ngx_http_copy_aio_handler(ngx_output_chain_ctx_t *ctx,
19 ngx_file_t *file);
20 static void ngx_http_copy_aio_event_handler(ngx_event_t *ev);
21 #if (NGX_HAVE_AIO_SENDFILE)
22 static void ngx_http_copy_aio_sendfile_event_handler(ngx_event_t *ev);
23 #endif
24 #endif
16 25
17 static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf); 26 static void *ngx_http_copy_filter_create_conf(ngx_conf_t *cf);
18 static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf, 27 static char *ngx_http_copy_filter_merge_conf(ngx_conf_t *cf,
19 void *parent, void *child); 28 void *parent, void *child);
20 static ngx_int_t ngx_http_copy_filter_init(ngx_conf_t *cf); 29 static ngx_int_t ngx_http_copy_filter_init(ngx_conf_t *cf);
71 ngx_http_copy_filter(ngx_http_request_t *r, ngx_chain_t *in) 80 ngx_http_copy_filter(ngx_http_request_t *r, ngx_chain_t *in)
72 { 81 {
73 ngx_int_t rc; 82 ngx_int_t rc;
74 ngx_connection_t *c; 83 ngx_connection_t *c;
75 ngx_output_chain_ctx_t *ctx; 84 ngx_output_chain_ctx_t *ctx;
85 ngx_http_core_loc_conf_t *clcf;
76 ngx_http_copy_filter_conf_t *conf; 86 ngx_http_copy_filter_conf_t *conf;
77 87
78 c = r->connection; 88 c = r->connection;
79 89
80 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, 90 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
81 "copy filter: \"%V?%V\"", &r->uri, &r->args); 91 "http copy filter: \"%V?%V\"", &r->uri, &r->args);
82 92
83 ctx = ngx_http_get_module_ctx(r, ngx_http_copy_filter_module); 93 ctx = ngx_http_get_module_ctx(r, ngx_http_copy_filter_module);
84 94
85 if (ctx == NULL) { 95 if (ctx == NULL) {
86 conf = ngx_http_get_module_loc_conf(r, ngx_http_copy_filter_module);
87
88 ctx = ngx_pcalloc(r->pool, sizeof(ngx_output_chain_ctx_t)); 96 ctx = ngx_pcalloc(r->pool, sizeof(ngx_output_chain_ctx_t));
89 if (ctx == NULL) { 97 if (ctx == NULL) {
90 return NGX_ERROR; 98 return NGX_ERROR;
91 } 99 }
92 100
93 ngx_http_set_ctx(r, ctx, ngx_http_copy_filter_module); 101 ngx_http_set_ctx(r, ctx, ngx_http_copy_filter_module);
102
103 conf = ngx_http_get_module_loc_conf(r, ngx_http_copy_filter_module);
104 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
94 105
95 ctx->sendfile = c->sendfile; 106 ctx->sendfile = c->sendfile;
96 ctx->need_in_memory = r->main_filter_need_in_memory 107 ctx->need_in_memory = r->main_filter_need_in_memory
97 || r->filter_need_in_memory; 108 || r->filter_need_in_memory;
98 ctx->need_in_temp = r->filter_need_temporary; 109 ctx->need_in_temp = r->filter_need_temporary;
99 110
111 ctx->alignment = clcf->directio_alignment;
112
100 ctx->pool = r->pool; 113 ctx->pool = r->pool;
101 ctx->bufs = conf->bufs; 114 ctx->bufs = conf->bufs;
102 ctx->tag = (ngx_buf_tag_t) &ngx_http_copy_filter_module; 115 ctx->tag = (ngx_buf_tag_t) &ngx_http_copy_filter_module;
103 116
104 ctx->output_filter = (ngx_output_chain_filter_pt) ngx_http_next_filter; 117 ctx->output_filter = (ngx_output_chain_filter_pt) ngx_http_next_filter;
105 ctx->filter_ctx = r; 118 ctx->filter_ctx = r;
106 119
120 #if (NGX_HAVE_FILE_AIO)
121 if (clcf->aio) {
122 ctx->aio_handler = ngx_http_copy_aio_handler;
123 #if (NGX_HAVE_AIO_SENDFILE)
124 c->aio_sendfile = (clcf->aio == NGX_HTTP_AIO_SENDFILE);
125 #endif
126 }
127 #endif
128
107 r->request_output = 1; 129 r->request_output = 1;
108 } 130 }
109 131
110 rc = ngx_output_chain(ctx, in); 132 #if (NGX_HAVE_FILE_AIO)
111 133 ctx->aio = r->aio;
112 if (!c->destroyed) { 134 #endif
135
136 for ( ;; ) {
137 rc = ngx_output_chain(ctx, in);
113 138
114 if (ctx->in == NULL) { 139 if (ctx->in == NULL) {
115 r->buffered &= ~NGX_HTTP_COPY_BUFFERED; 140 r->buffered &= ~NGX_HTTP_COPY_BUFFERED;
141
116 } else { 142 } else {
117 r->buffered |= NGX_HTTP_COPY_BUFFERED; 143 r->buffered |= NGX_HTTP_COPY_BUFFERED;
118 } 144 }
119 145
120 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, 146 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
121 "copy filter: %i \"%V?%V\"", rc, &r->uri, &r->args); 147 "http copy filter: %i \"%V?%V\"", rc, &r->uri, &r->args);
148
149 #if (NGX_HAVE_FILE_AIO && NGX_HAVE_AIO_SENDFILE)
150
151 if (c->busy_sendfile) {
152 ssize_t n;
153 off_t offset;
154 ngx_file_t *file;
155 ngx_http_ephemeral_t *e;
156
157 file = c->busy_sendfile->file;
158 offset = c->busy_sendfile->file_pos;
159
160 if (file->aio) {
161 c->aio_sendfile = (offset != file->aio->last_offset);
162 file->aio->last_offset = offset;
163
164 if (c->aio_sendfile == 0) {
165 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
166 "sendfile(%V) returned busy again",
167 &file->name);
168 }
169 }
170
171 c->busy_sendfile = NULL;
172 e = (ngx_http_ephemeral_t *) &r->uri_start;
173
174 n = ngx_file_aio_read(file, &e->aio_preload, 1, offset, r->pool);
175
176 if (n > 0) {
177 in = NULL;
178 continue;
179 }
180
181 rc = n;
182
183 if (file->aio) {
184 file->aio->data = r;
185 file->aio->handler = ngx_http_copy_aio_sendfile_event_handler;
186
187 r->main->blocked++;
188 r->aio = 1;
189 }
190 }
191 #endif
192
193 return rc;
122 } 194 }
123 195 }
124 return rc; 196
125 } 197
198 #if (NGX_HAVE_FILE_AIO)
199
200 static void
201 ngx_http_copy_aio_handler(ngx_output_chain_ctx_t *ctx, ngx_file_t *file)
202 {
203 ngx_http_request_t *r;
204
205 r = ctx->filter_ctx;
206
207 file->aio->data = r;
208 file->aio->handler = ngx_http_copy_aio_event_handler;
209
210 r->main->blocked++;
211 r->aio = 1;
212 }
213
214
215 static void
216 ngx_http_copy_aio_event_handler(ngx_event_t *ev)
217 {
218 ngx_event_aio_t *aio;
219 ngx_http_request_t *r;
220
221 aio = ev->data;
222 r = aio->data;
223
224 r->main->blocked--;
225 r->aio = 0;
226
227 r->connection->write->handler(r->connection->write);
228 }
229
230
231 #if (NGX_HAVE_AIO_SENDFILE)
232
233 static void
234 ngx_http_copy_aio_sendfile_event_handler(ngx_event_t *ev)
235 {
236 ngx_event_aio_t *aio;
237 ngx_http_request_t *r;
238
239 aio = ev->data;
240 r = aio->data;
241
242 r->main->blocked--;
243 r->aio = 0;
244 ev->complete = 0;
245
246 r->connection->write->handler(r->connection->write);
247 }
248
249 #endif
250 #endif
126 251
127 252
128 static void * 253 static void *
129 ngx_http_copy_filter_create_conf(ngx_conf_t *cf) 254 ngx_http_copy_filter_create_conf(ngx_conf_t *cf)
130 { 255 {