Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_freebsd_sendfile_chain.c @ 4503:cfa7ab65182b
release-1.1.16 tag
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 29 Feb 2012 13:45:39 +0000 |
parents | 778ef9c3fd2d |
children | 67653855682e |
rev | line source |
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272
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nginx-0.0.2-2004-03-01-00:03:02 import
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1 |
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2 /* |
444
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nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
272
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5 */ |
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6 |
63
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nginx-0.0.1-2003-02-26-23:21:43 import
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7 |
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
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8 #include <ngx_config.h> |
96
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9 #include <ngx_core.h> |
142
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10 #include <ngx_event.h> |
63
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nginx-0.0.1-2003-02-26-23:21:43 import
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11 |
96
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12 |
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nginx-0.0.1-2003-05-27-16:18:54 import
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13 /* |
479 | 14 * Although FreeBSD sendfile() allows to pass a header and a trailer, |
4133
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Replaced "can not" with "cannot" and "could not" in a bunch of places.
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15 * it cannot send a header with a part of the file in one packet until |
479 | 16 * FreeBSD 5.3. Besides, over the fast ethernet connection sendfile() |
361
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nginx-0.0.7-2004-06-20-23:54:15 import
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17 * may send the partially filled packets, i.e. the 8 file pages may be sent |
290
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nginx-0.0.2-2004-03-16-10:10:12 import
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18 * as the 11 full 1460-bytes packets, then one incomplete 324-bytes packet, |
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19 * and then again the 11 full 1460-bytes packets. |
142
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20 * |
479 | 21 * Threfore we use the TCP_NOPUSH option (similar to Linux's TCP_CORK) |
22 * to postpone the sending - it not only sends a header and the first part of | |
23 * the file in one packet, but also sends the file pages in the full packets. | |
253
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nginx-0.0.2-2004-02-09-10:46:43 import
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24 * |
501 | 25 * But until FreeBSD 4.5 turning TCP_NOPUSH off does not flush a pending |
26 * data that less than MSS, so that data may be sent with 5 second delay. | |
27 * So we do not use TCP_NOPUSH on FreeBSD prior to 4.5, although it can be used | |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
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28 * for non-keepalive HTTP connections. |
142
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29 */ |
63
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nginx-0.0.1-2003-02-26-23:21:43 import
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30 |
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
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31 |
597 | 32 #if (IOV_MAX > 64) |
33 #define NGX_HEADERS 64 | |
34 #define NGX_TRAILERS 64 | |
35 #else | |
36 #define NGX_HEADERS IOV_MAX | |
37 #define NGX_TRAILERS IOV_MAX | |
38 #endif | |
428
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nginx-0.0.11-2004-09-16-20:10:13 import
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39 |
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nginx-0.0.11-2004-09-16-20:10:13 import
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40 |
501 | 41 ngx_chain_t * |
42 ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) | |
63
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nginx-0.0.1-2003-02-26-23:21:43 import
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43 { |
3065 | 44 int rc, flags; |
290
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nginx-0.0.2-2004-03-16-10:10:12 import
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45 u_char *prev; |
473 | 46 off_t size, send, prev_send, aligned, sent, fprev; |
47 size_t header_size, file_size; | |
362
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nginx-0.0.7-2004-06-21-19:59:32 import
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48 ngx_uint_t eintr, eagain, complete; |
63
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nginx-0.0.1-2003-02-26-23:21:43 import
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49 ngx_err_t err; |
343
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nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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50 ngx_buf_t *file; |
63
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nginx-0.0.1-2003-02-26-23:21:43 import
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51 ngx_array_t header, trailer; |
170
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nginx-0.0.1-2003-11-03-01:56:18 import
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52 ngx_event_t *wev; |
362
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nginx-0.0.7-2004-06-21-19:59:32 import
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53 ngx_chain_t *cl; |
428
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nginx-0.0.11-2004-09-16-20:10:13 import
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54 struct sf_hdtr hdtr; |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
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55 struct iovec *iov, headers[NGX_HEADERS], trailers[NGX_TRAILERS]; |
96
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nginx-0.0.1-2003-05-27-16:18:54 import
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56 |
170
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nginx-0.0.1-2003-11-03-01:56:18 import
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57 wev = c->write; |
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nginx-0.0.1-2003-11-03-01:56:18 import
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58 |
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nginx-0.0.1-2003-11-03-01:56:18 import
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59 if (!wev->ready) { |
144
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nginx-0.0.1-2003-10-12-20:49:16 import
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60 return in; |
ef8c87afcfc5
nginx-0.0.1-2003-10-12-20:49:16 import
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61 } |
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nginx-0.0.1-2003-10-12-20:49:16 import
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62 |
469 | 63 #if (NGX_HAVE_KQUEUE) |
170
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nginx-0.0.1-2003-11-03-01:56:18 import
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64 |
587 | 65 if ((ngx_event_flags & NGX_USE_KQUEUE_EVENT) && wev->pending_eof) { |
537 | 66 (void) ngx_connection_error(c, wev->kq_errno, |
67 "kevent() reported about an closed connection"); | |
170
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nginx-0.0.1-2003-11-03-01:56:18 import
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68 wev->error = 1; |
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nginx-0.0.1-2003-11-03-01:56:18 import
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69 return NGX_CHAIN_ERROR; |
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
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70 } |
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71 |
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nginx-0.0.1-2003-11-03-01:56:18 import
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72 #endif |
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nginx-0.0.1-2003-11-03-01:56:18 import
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73 |
473 | 74 /* the maximum limit size is the maximum size_t value - the page size */ |
75 | |
1354
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76 if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) { |
477 | 77 limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize; |
473 | 78 } |
79 | |
362
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nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
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80 send = 0; |
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81 eagain = 0; |
3065 | 82 flags = 0; |
361
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83 |
428
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84 header.elts = headers; |
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85 header.size = sizeof(struct iovec); |
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nginx-0.0.11-2004-09-16-20:10:13 import
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86 header.nalloc = NGX_HEADERS; |
5e73d0ea4dab
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87 header.pool = c->pool; |
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88 |
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nginx-0.0.11-2004-09-16-20:10:13 import
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89 trailer.elts = trailers; |
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nginx-0.0.11-2004-09-16-20:10:13 import
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90 trailer.size = sizeof(struct iovec); |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
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91 trailer.nalloc = NGX_TRAILERS; |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
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92 trailer.pool = c->pool; |
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93 |
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94 for ( ;; ) { |
96
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nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
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95 file = NULL; |
473 | 96 file_size = 0; |
97 header_size = 0; | |
96
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98 eintr = 0; |
362
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99 complete = 0; |
473 | 100 prev_send = send; |
96
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101 |
428
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102 header.nelts = 0; |
5e73d0ea4dab
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103 trailer.nelts = 0; |
96
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104 |
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105 /* create the header iovec and coalesce the neighbouring bufs */ |
143
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106 |
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107 prev = NULL; |
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108 iov = NULL; |
142
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109 |
362
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110 for (cl = in; |
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111 cl && header.nelts < IOV_MAX && send < limit; |
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112 cl = cl->next) |
7650aea1816f
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113 { |
343
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114 if (ngx_buf_special(cl->buf)) { |
143
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115 continue; |
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116 } |
96
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117 |
343
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118 if (!ngx_buf_in_memory_only(cl->buf)) { |
143
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119 break; |
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120 } |
142
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103
diff
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121 |
361
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122 size = cl->buf->last - cl->buf->pos; |
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123 |
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124 if (send + size > limit) { |
446782c909b3
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125 size = limit - send; |
446782c909b3
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126 } |
446782c909b3
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127 |
343
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128 if (prev == cl->buf->pos) { |
473 | 129 iov->iov_len += (size_t) size; |
96
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nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
130 |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
142
diff
changeset
|
131 } else { |
501 | 132 iov = ngx_array_push(&header); |
133 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
|
134 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
|
135 } |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
402
diff
changeset
|
136 |
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
|
137 iov->iov_base = (void *) cl->buf->pos; |
473 | 138 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
|
139 } |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 |
473 | 141 prev = cl->buf->pos + (size_t) size; |
142 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
|
143 send += size; |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
144 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
145 |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
103
diff
changeset
|
146 |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
147 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
|
148 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
|
149 |
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
|
150 /* 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
|
151 |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
152 do { |
473 | 153 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
|
154 |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
155 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
|
156 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
|
157 |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
158 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
|
159 & ~((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
|
160 |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
161 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
|
162 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
|
163 } |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
164 } |
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
165 |
473 | 166 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
|
167 send += size; |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
168 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
|
169 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
|
170 |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
171 } while (cl |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
172 && 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
|
173 && send < limit |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
174 && 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
|
175 && 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
|
176 } |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
177 |
455 | 178 |
264
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
179 if (file) { |
455 | 180 |
4499
778ef9c3fd2d
Fixed spelling in single-line comments.
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
181 /* create the trailer 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
|
182 |
264
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
183 prev = NULL; |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
184 iov = NULL; |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
185 |
455 | 186 while (cl && header.nelts < IOV_MAX && send < limit) { |
187 | |
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
|
188 if (ngx_buf_special(cl->buf)) { |
455 | 189 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
|
190 continue; |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
191 } |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
103
diff
changeset
|
192 |
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
|
193 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
|
194 break; |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
195 } |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
196 |
361
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
197 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
|
198 |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
199 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
|
200 size = limit - send; |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
201 } |
446782c909b3
nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
202 |
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
|
203 if (prev == cl->buf->pos) { |
473 | 204 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
|
205 |
264
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
206 } else { |
501 | 207 iov = ngx_array_push(&trailer); |
208 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
|
209 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
|
210 } |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
402
diff
changeset
|
211 |
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
|
212 iov->iov_base = (void *) cl->buf->pos; |
473 | 213 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
|
214 } |
cd009bf7400d
nginx-0.0.2-2004-02-19-19:48:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
215 |
473 | 216 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
|
217 send += size; |
455 | 218 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
|
219 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
220 } |
67
5a7d1aaa1618
nginx-0.0.1-2003-03-11-23:38:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
63
diff
changeset
|
221 |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
222 if (file) { |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
223 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
224 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
|
225 && 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
|
226 { |
101
2e069b6e6920
nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
99
diff
changeset
|
227 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
|
228 err = ngx_errno; |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
229 |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
230 /* |
479 | 231 * 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
|
232 * 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
|
233 */ |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
234 |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
235 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
|
236 wev->error = 1; |
537 | 237 (void) ngx_connection_error(c, err, |
238 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
|
239 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
|
240 } |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
241 |
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
242 } else { |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
243 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
|
244 |
253
b6793bc5034b
nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
218
diff
changeset
|
245 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
|
246 "tcp_nopush"); |
96
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 |
4335
1003326eccc5
Microoptimization of sendfile(2) usage under FreeBSD.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4133
diff
changeset
|
250 /* |
1003326eccc5
Microoptimization of sendfile(2) usage under FreeBSD.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4133
diff
changeset
|
251 * sendfile() does unneeded work if sf_hdtr's count is 0, |
1003326eccc5
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252 * but corresponding pointer is not NULL |
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253 */ |
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254 |
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255 hdtr.headers = header.nelts ? (struct iovec *) header.elts: NULL; |
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256 hdtr.hdr_cnt = header.nelts; |
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257 hdtr.trailers = trailer.nelts ? (struct iovec *) trailer.elts: NULL; |
96
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258 hdtr.trl_cnt = trailer.nelts; |
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259 |
153
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260 /* |
155
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261 * the "nbytes bug" of the old sendfile() syscall: |
153
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262 * http://www.freebsd.org/cgi/query-pr.cgi?pr=33771 |
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263 */ |
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264 |
479 | 265 if (!ngx_freebsd_sendfile_nbytes_bug) { |
473 | 266 header_size = 0; |
63
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267 } |
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268 |
203
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269 sent = 0; |
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270 |
3065 | 271 #if (NGX_HAVE_AIO_SENDFILE) |
272 flags = c->aio_sendfile ? SF_NODISKIO : 0; | |
273 #endif | |
274 | |
96
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275 rc = sendfile(file->file->fd, c->fd, file->file_pos, |
3065 | 276 file_size + header_size, &hdtr, &sent, flags); |
96
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277 |
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278 if (rc == -1) { |
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279 err = ngx_errno; |
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280 |
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281 switch (err) { |
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282 case NGX_EAGAIN: |
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283 eagain = 1; |
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284 break; |
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285 |
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286 case NGX_EINTR: |
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287 eintr = 1; |
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288 break; |
152
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289 |
3065 | 290 #if (NGX_HAVE_AIO_SENDFILE) |
291 case NGX_EBUSY: | |
292 c->busy_sendfile = file; | |
293 break; | |
294 #endif | |
295 | |
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296 default: |
170
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297 wev->error = 1; |
537 | 298 (void) ngx_connection_error(c, err, "sendfile() failed"); |
96
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299 return NGX_CHAIN_ERROR; |
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300 } |
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301 |
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302 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, err, |
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303 "sendfile() sent only %O bytes", sent); |
96
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304 |
483 | 305 /* |
306 * sendfile() in FreeBSD 3.x-4.x may return value >= 0 | |
307 * on success, although only 0 is documented | |
308 */ | |
309 | |
3080 | 310 } else if (rc >= 0 && sent == 0) { |
455 | 311 |
312 /* | |
483 | 313 * if rc is OK and sent equal to zero, then someone |
314 * has truncated the file, so the offset became beyond | |
315 * the end of the file | |
455 | 316 */ |
317 | |
318 ngx_log_error(NGX_LOG_ALERT, c->log, 0, | |
3081
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319 "sendfile() reported that \"%s\" was truncated at %O", |
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320 file->file->name.data, file->file_pos); |
455 | 321 |
322 return NGX_CHAIN_ERROR; | |
323 } | |
324 | |
214
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325 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 326 "sendfile: %d, @%O %O:%uz", |
473 | 327 rc, file->file_pos, sent, file_size + header_size); |
96
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328 |
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329 } else { |
170
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330 rc = writev(c->fd, header.elts, header.nelts); |
96
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331 |
297
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332 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
473 | 333 "writev: %d of %uz", rc, header_size); |
297
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334 |
143
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335 if (rc == -1) { |
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336 err = ngx_errno; |
96
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337 |
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338 switch (err) { |
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339 case NGX_EAGAIN: |
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340 break; |
216
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341 |
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342 case NGX_EINTR: |
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343 eintr = 1; |
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344 break; |
96
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345 |
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346 default: |
170
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347 wev->error = 1; |
253
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|
348 ngx_connection_error(c, err, "writev() failed"); |
143
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349 return NGX_CHAIN_ERROR; |
96
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350 } |
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351 |
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352 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
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353 "writev() not ready"); |
143
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354 } |
89
29bf798b583f
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88
diff
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|
355 |
143
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|
356 sent = rc > 0 ? rc : 0; |
96
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357 } |
63
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|
358 |
473 | 359 if (send - prev_send == sent) { |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
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parents:
361
diff
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|
360 complete = 1; |
361
446782c909b3
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344
diff
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|
361 } |
446782c909b3
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344
diff
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|
362 |
96
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363 c->sent += sent; |
63
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|
364 |
155
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|
365 for (cl = in; cl; cl = cl->next) { |
152
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|
366 |
343
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|
367 if (ngx_buf_special(cl->buf)) { |
152
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368 continue; |
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369 } |
63
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|
370 |
152
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|
371 if (sent == 0) { |
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|
372 break; |
63
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|
373 } |
36d2c25cc9bb
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|
374 |
343
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diff
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|
375 size = ngx_buf_size(cl->buf); |
152
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|
376 |
96
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|
377 if (sent >= size) { |
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378 sent -= size; |
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379 |
343
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diff
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|
380 if (ngx_buf_in_memory(cl->buf)) { |
6bdf858bff8c
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|
381 cl->buf->pos = cl->buf->last; |
96
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382 } |
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|
383 |
343
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|
384 if (cl->buf->in_file) { |
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|
385 cl->buf->file_pos = cl->buf->file_last; |
96
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|
386 } |
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|
387 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
388 continue; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
389 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
390 |
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
|
391 if (ngx_buf_in_memory(cl->buf)) { |
473 | 392 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
|
393 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
394 |
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
|
395 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
|
396 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
|
397 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
398 |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
399 break; |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
400 } |
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
401 |
3065 | 402 #if (NGX_HAVE_AIO_SENDFILE) |
403 if (c->busy_sendfile) { | |
404 return cl; | |
405 } | |
406 #endif | |
407 | |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
408 if (eagain) { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
409 |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
152
diff
changeset
|
410 /* |
479 | 411 * sendfile() may return EAGAIN, even if it has sent a whole file |
412 * 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
|
413 * 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
|
414 * 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
|
415 */ |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
154
diff
changeset
|
416 |
170
c42be4185301
nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
417 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
|
418 return cl; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
419 } |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
420 |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
421 if (eintr) { |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
422 continue; |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
423 } |
96
a23d010f356d
nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
424 |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
425 if (!complete) { |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
426 wev->ready = 0; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
427 return cl; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
428 } |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
429 |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
430 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
|
431 return cl; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
432 } |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
433 |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
361
diff
changeset
|
434 in = cl; |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
103
diff
changeset
|
435 } |
63
36d2c25cc9bb
nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
436 } |