Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_freebsd_sendfile_chain.c @ 3800:8baa96142289
add the first release date
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 29 Nov 2010 15:21:24 +0000 |
parents | 10bfdd8d5eb9 |
children | 59b99f217c6d |
rev | line source |
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
96
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
63
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10 |
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11 |
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12 /* |
479 | 13 * Although FreeBSD sendfile() allows to pass a header and a trailer, |
361
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14 * it can not send a header with a part of the file in one packet until |
479 | 15 * FreeBSD 5.3. Besides, over the fast ethernet connection sendfile() |
361
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16 * may send the partially filled packets, i.e. the 8 file pages may be sent |
290
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17 * as the 11 full 1460-bytes packets, then one incomplete 324-bytes packet, |
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18 * and then again the 11 full 1460-bytes packets. |
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19 * |
479 | 20 * Threfore we use the TCP_NOPUSH option (similar to Linux's TCP_CORK) |
21 * to postpone the sending - it not only sends a header and the first part of | |
22 * the file in one packet, but also sends the file pages in the full packets. | |
253
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23 * |
501 | 24 * But until FreeBSD 4.5 turning TCP_NOPUSH off does not flush a pending |
25 * data that less than MSS, so that data may be sent with 5 second delay. | |
26 * So we do not use TCP_NOPUSH on FreeBSD prior to 4.5, although it can be used | |
143
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27 * for non-keepalive HTTP connections. |
142
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28 */ |
63
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29 |
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30 |
597 | 31 #if (IOV_MAX > 64) |
32 #define NGX_HEADERS 64 | |
33 #define NGX_TRAILERS 64 | |
34 #else | |
35 #define NGX_HEADERS IOV_MAX | |
36 #define NGX_TRAILERS IOV_MAX | |
37 #endif | |
428
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38 |
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39 |
501 | 40 ngx_chain_t * |
41 ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) | |
63
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42 { |
3065 | 43 int rc, flags; |
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44 u_char *prev; |
473 | 45 off_t size, send, prev_send, aligned, sent, fprev; |
46 size_t header_size, file_size; | |
362
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47 ngx_uint_t eintr, eagain, complete; |
63
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48 ngx_err_t err; |
343
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49 ngx_buf_t *file; |
63
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50 ngx_array_t header, trailer; |
170
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51 ngx_event_t *wev; |
362
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52 ngx_chain_t *cl; |
428
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53 struct sf_hdtr hdtr; |
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54 struct iovec *iov, headers[NGX_HEADERS], trailers[NGX_TRAILERS]; |
96
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55 |
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56 wev = c->write; |
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57 |
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58 if (!wev->ready) { |
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59 return in; |
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60 } |
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61 |
469 | 62 #if (NGX_HAVE_KQUEUE) |
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63 |
587 | 64 if ((ngx_event_flags & NGX_USE_KQUEUE_EVENT) && wev->pending_eof) { |
537 | 65 (void) ngx_connection_error(c, wev->kq_errno, |
66 "kevent() reported about an closed connection"); | |
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67 wev->error = 1; |
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68 return NGX_CHAIN_ERROR; |
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69 } |
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70 |
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71 #endif |
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72 |
473 | 73 /* the maximum limit size is the maximum size_t value - the page size */ |
74 | |
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75 if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) { |
477 | 76 limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize; |
473 | 77 } |
78 | |
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79 send = 0; |
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80 eagain = 0; |
3065 | 81 flags = 0; |
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82 |
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83 header.elts = headers; |
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84 header.size = sizeof(struct iovec); |
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85 header.nalloc = NGX_HEADERS; |
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86 header.pool = c->pool; |
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87 |
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88 trailer.elts = trailers; |
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89 trailer.size = sizeof(struct iovec); |
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90 trailer.nalloc = NGX_TRAILERS; |
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91 trailer.pool = c->pool; |
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92 |
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93 for ( ;; ) { |
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94 file = NULL; |
473 | 95 file_size = 0; |
96 header_size = 0; | |
96
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97 eintr = 0; |
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98 complete = 0; |
473 | 99 prev_send = send; |
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100 |
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101 header.nelts = 0; |
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102 trailer.nelts = 0; |
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103 |
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104 /* create the header iovec and coalesce the neighbouring bufs */ |
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105 |
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106 prev = NULL; |
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107 iov = NULL; |
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108 |
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109 for (cl = in; |
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110 cl && header.nelts < IOV_MAX && send < limit; |
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111 cl = cl->next) |
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112 { |
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113 if (ngx_buf_special(cl->buf)) { |
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114 continue; |
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115 } |
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116 |
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117 if (!ngx_buf_in_memory_only(cl->buf)) { |
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118 break; |
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119 } |
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120 |
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121 size = cl->buf->last - cl->buf->pos; |
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122 |
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123 if (send + size > limit) { |
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124 size = limit - send; |
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125 } |
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126 |
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127 if (prev == cl->buf->pos) { |
473 | 128 iov->iov_len += (size_t) size; |
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129 |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
142
diff
changeset
|
130 } else { |
501 | 131 iov = ngx_array_push(&header); |
132 if (iov == NULL) { | |
428
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
402
diff
changeset
|
133 return NGX_CHAIN_ERROR; |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
402
diff
changeset
|
134 } |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
402
diff
changeset
|
135 |
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:
297
diff
changeset
|
136 iov->iov_base = (void *) cl->buf->pos; |
473 | 137 iov->iov_len = (size_t) size; |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
142
diff
changeset
|
138 } |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 |
473 | 140 prev = cl->buf->pos + (size_t) size; |
141 header_size += (size_t) size; | |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
142 send += size; |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
143 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
144 |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
103
diff
changeset
|
145 |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
146 if (cl && cl->buf->in_file && send < limit) { |
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:
297
diff
changeset
|
147 file = cl->buf; |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
148 |
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:
297
diff
changeset
|
149 /* coalesce the neighbouring file bufs */ |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
150 |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
151 do { |
473 | 152 size = cl->buf->file_last - cl->buf->file_pos; |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
153 |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
154 if (send + size > limit) { |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
155 size = limit - send; |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
156 |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
157 aligned = (cl->buf->file_pos + size + ngx_pagesize - 1) |
1182
df449f4a8032
fix sendfile on 64-bit Linux and limit_rate on all 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
597
diff
changeset
|
158 & ~((off_t) ngx_pagesize - 1); |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
159 |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
160 if (aligned <= cl->buf->file_last) { |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
161 size = aligned - cl->buf->file_pos; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
162 } |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
163 } |
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
164 |
473 | 165 file_size += (size_t) size; |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
166 send += size; |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
167 fprev = cl->buf->file_pos + size; |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
168 cl = cl->next; |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
169 |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
170 } while (cl |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
171 && cl->buf->in_file |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
172 && send < limit |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
173 && file->file->fd == cl->buf->file->fd |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
174 && fprev == cl->buf->file_pos); |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
175 } |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
176 |
455 | 177 |
264
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
178 if (file) { |
455 | 179 |
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:
297
diff
changeset
|
180 /* create the tailer iovec and coalesce the neighbouring bufs */ |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
103
diff
changeset
|
181 |
264
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
182 prev = NULL; |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
183 iov = NULL; |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
184 |
455 | 185 while (cl && header.nelts < IOV_MAX && send < limit) { |
186 | |
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:
297
diff
changeset
|
187 if (ngx_buf_special(cl->buf)) { |
455 | 188 cl = cl->next; |
264
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
189 continue; |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
190 } |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
103
diff
changeset
|
191 |
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:
297
diff
changeset
|
192 if (!ngx_buf_in_memory_only(cl->buf)) { |
264
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
193 break; |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
194 } |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
195 |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
196 size = cl->buf->last - cl->buf->pos; |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
197 |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
198 if (send + size > limit) { |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
199 size = limit - send; |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
200 } |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
201 |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
202 if (prev == cl->buf->pos) { |
473 | 203 iov->iov_len += (size_t) size; |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
204 |
264
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
205 } else { |
501 | 206 iov = ngx_array_push(&trailer); |
207 if (iov == NULL) { | |
428
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
402
diff
changeset
|
208 return NGX_CHAIN_ERROR; |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
402
diff
changeset
|
209 } |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
402
diff
changeset
|
210 |
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:
297
diff
changeset
|
211 iov->iov_base = (void *) cl->buf->pos; |
473 | 212 iov->iov_len = (size_t) size; |
264
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
213 } |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
214 |
473 | 215 prev = cl->buf->pos + (size_t) size; |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
216 send += size; |
455 | 217 cl = cl->next; |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
218 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
219 } |
67
5a7d1aaa1618
nginx-0.0.1-2003-03-11-23:38:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
63
diff
changeset
|
220 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
221 if (file) { |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
222 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
223 if (ngx_freebsd_use_tcp_nopush |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
224 && c->tcp_nopush == NGX_TCP_NOPUSH_UNSET) |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
225 { |
101
2e069b6e6920
nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
99
diff
changeset
|
226 if (ngx_tcp_nopush(c->fd) == NGX_ERROR) { |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
227 err = ngx_errno; |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
228 |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
229 /* |
479 | 230 * there is a tiny chance to be interrupted, however, |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
231 * we continue a processing without the TCP_NOPUSH |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
232 */ |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
233 |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
234 if (err != NGX_EINTR) { |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
235 wev->error = 1; |
537 | 236 (void) ngx_connection_error(c, err, |
237 ngx_tcp_nopush_n " failed"); | |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
238 return NGX_CHAIN_ERROR; |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
239 } |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
240 |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
241 } else { |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
242 c->tcp_nopush = NGX_TCP_NOPUSH_SET; |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
243 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
244 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
245 "tcp_nopush"); |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
246 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
247 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
248 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
249 hdtr.headers = (struct iovec *) header.elts; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
250 hdtr.hdr_cnt = header.nelts; |
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251 hdtr.trailers = (struct iovec *) trailer.elts; |
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252 hdtr.trl_cnt = trailer.nelts; |
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253 |
153
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254 /* |
155
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255 * the "nbytes bug" of the old sendfile() syscall: |
153
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256 * http://www.freebsd.org/cgi/query-pr.cgi?pr=33771 |
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257 */ |
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258 |
479 | 259 if (!ngx_freebsd_sendfile_nbytes_bug) { |
473 | 260 header_size = 0; |
63
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261 } |
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262 |
203
c9da5900c79e
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diff
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263 sent = 0; |
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264 |
3065 | 265 #if (NGX_HAVE_AIO_SENDFILE) |
266 flags = c->aio_sendfile ? SF_NODISKIO : 0; | |
267 #endif | |
268 | |
96
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269 rc = sendfile(file->file->fd, c->fd, file->file_pos, |
3065 | 270 file_size + header_size, &hdtr, &sent, flags); |
96
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271 |
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272 if (rc == -1) { |
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273 err = ngx_errno; |
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274 |
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275 switch (err) { |
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276 case NGX_EAGAIN: |
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277 eagain = 1; |
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278 break; |
216
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279 |
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280 case NGX_EINTR: |
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281 eintr = 1; |
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282 break; |
152
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283 |
3065 | 284 #if (NGX_HAVE_AIO_SENDFILE) |
285 case NGX_EBUSY: | |
286 c->busy_sendfile = file; | |
287 break; | |
288 #endif | |
289 | |
3063
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290 default: |
170
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291 wev->error = 1; |
537 | 292 (void) ngx_connection_error(c, err, "sendfile() failed"); |
96
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293 return NGX_CHAIN_ERROR; |
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294 } |
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295 |
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296 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, err, |
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297 "sendfile() sent only %O bytes", sent); |
96
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298 |
483 | 299 /* |
300 * sendfile() in FreeBSD 3.x-4.x may return value >= 0 | |
301 * on success, although only 0 is documented | |
302 */ | |
303 | |
3080 | 304 } else if (rc >= 0 && sent == 0) { |
455 | 305 |
306 /* | |
483 | 307 * if rc is OK and sent equal to zero, then someone |
308 * has truncated the file, so the offset became beyond | |
309 * the end of the file | |
455 | 310 */ |
311 | |
312 ngx_log_error(NGX_LOG_ALERT, c->log, 0, | |
3081
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3080
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313 "sendfile() reported that \"%s\" was truncated at %O", |
10bfdd8d5eb9
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3080
diff
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|
314 file->file->name.data, file->file_pos); |
455 | 315 |
316 return NGX_CHAIN_ERROR; | |
317 } | |
318 | |
214
e0c502f15852
nginx-0.0.1-2003-12-22-12:40:48 import
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parents:
203
diff
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|
319 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 320 "sendfile: %d, @%O %O:%uz", |
473 | 321 rc, file->file_pos, sent, file_size + header_size); |
96
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diff
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|
322 |
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323 } else { |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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|
324 rc = writev(c->fd, header.elts, header.nelts); |
96
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diff
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|
325 |
297
ee394e997c77
nginx-0.0.3-2004-03-29-21:43:58 import
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290
diff
changeset
|
326 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
473 | 327 "writev: %d of %uz", rc, header_size); |
297
ee394e997c77
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290
diff
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|
328 |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
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142
diff
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|
329 if (rc == -1) { |
5526213be452
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142
diff
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|
330 err = ngx_errno; |
96
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nginx-0.0.1-2003-05-27-16:18:54 import
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94
diff
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|
331 |
3063
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332 switch (err) { |
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333 case NGX_EAGAIN: |
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|
334 break; |
216
f1d0e5f09c1e
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parents:
214
diff
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|
335 |
3063
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|
336 case NGX_EINTR: |
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337 eintr = 1; |
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338 break; |
96
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diff
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339 |
3063
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|
340 default: |
170
c42be4185301
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parents:
163
diff
changeset
|
341 wev->error = 1; |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
342 ngx_connection_error(c, err, "writev() failed"); |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
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parents:
142
diff
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|
343 return NGX_CHAIN_ERROR; |
96
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nginx-0.0.1-2003-05-27-16:18:54 import
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94
diff
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|
344 } |
3063
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|
345 |
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346 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
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|
347 "writev() not ready"); |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
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parents:
142
diff
changeset
|
348 } |
89
29bf798b583f
nginx-0.0.1-2003-05-15-19:42:53 import
Igor Sysoev <igor@sysoev.ru>
parents:
88
diff
changeset
|
349 |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
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parents:
142
diff
changeset
|
350 sent = rc > 0 ? rc : 0; |
96
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parents:
94
diff
changeset
|
351 } |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
352 |
473 | 353 if (send - prev_send == sent) { |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
354 complete = 1; |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
355 } |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
356 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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94
diff
changeset
|
357 c->sent += sent; |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
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parents:
diff
changeset
|
358 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
359 for (cl = in; cl; cl = cl->next) { |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
360 |
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:
297
diff
changeset
|
361 if (ngx_buf_special(cl->buf)) { |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
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parents:
144
diff
changeset
|
362 continue; |
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
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parents:
144
diff
changeset
|
363 } |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
364 |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
365 if (sent == 0) { |
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
366 break; |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
367 } |
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
368 |
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:
297
diff
changeset
|
369 size = ngx_buf_size(cl->buf); |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
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parents:
144
diff
changeset
|
370 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
94
diff
changeset
|
371 if (sent >= size) { |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
94
diff
changeset
|
372 sent -= size; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
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parents:
94
diff
changeset
|
373 |
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:
297
diff
changeset
|
374 if (ngx_buf_in_memory(cl->buf)) { |
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents:
297
diff
changeset
|
375 cl->buf->pos = cl->buf->last; |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
376 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
377 |
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:
297
diff
changeset
|
378 if (cl->buf->in_file) { |
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:
297
diff
changeset
|
379 cl->buf->file_pos = cl->buf->file_last; |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
380 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
381 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
382 continue; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
383 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
384 |
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:
297
diff
changeset
|
385 if (ngx_buf_in_memory(cl->buf)) { |
473 | 386 cl->buf->pos += (size_t) sent; |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
387 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
388 |
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:
297
diff
changeset
|
389 if (cl->buf->in_file) { |
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:
297
diff
changeset
|
390 cl->buf->file_pos += sent; |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
391 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
392 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
393 break; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
394 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
395 |
3065 | 396 #if (NGX_HAVE_AIO_SENDFILE) |
397 if (c->busy_sendfile) { | |
398 return cl; | |
399 } | |
400 #endif | |
401 | |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
402 if (eagain) { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
403 |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
152
diff
changeset
|
404 /* |
479 | 405 * sendfile() may return EAGAIN, even if it has sent a whole file |
406 * part, it indicates that the successive sendfile() call would | |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
407 * return EAGAIN right away and would not send anything. |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
408 * We use it as a hint. |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
152
diff
changeset
|
409 */ |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
410 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
411 wev->ready = 0; |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
412 return cl; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
413 } |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
414 |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
415 if (eintr) { |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
416 continue; |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
417 } |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
418 |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
419 if (!complete) { |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
420 wev->ready = 0; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
421 return cl; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
422 } |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
423 |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
424 if (send >= limit || cl == NULL) { |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
425 return cl; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
426 } |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
427 |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
428 in = cl; |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
103
diff
changeset
|
429 } |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
430 } |