Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_solaris_sendfilev_chain.c @ 5860:c9787372f16d
Limit conn: use complex value in limit_conn_zone (ticket #121).
One intentional side effect of this change is that key is allowed only
in the first position. Previously, it was possible to specify the key
variable at any position, but that was never documented, and is contrary
to nginx configuration practice for positional parameters.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Wed, 24 Sep 2014 21:55:19 +0400 |
parents | b63e829621ab |
children | 6bbad2e73245 |
rev | line source |
---|---|
272
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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 |
473 | 13 #if (NGX_TEST_BUILD_SOLARIS_SENDFILEV) |
14 | |
15 /* Solaris declarations */ | |
16 | |
17 typedef struct sendfilevec { | |
18 int sfv_fd; | |
19 u_int sfv_flag; | |
20 off_t sfv_off; | |
21 size_t sfv_len; | |
22 } sendfilevec_t; | |
23 | |
24 #define SFV_FD_SELF -2 | |
25 | |
26 static ssize_t sendfilev(int fd, const struct sendfilevec *vec, | |
585 | 27 int sfvcnt, size_t *xferred) |
473 | 28 { |
29 return -1; | |
30 } | |
31 | |
4759
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Fixed compilation with -Wmissing-prototypes.
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32 ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in, |
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Fixed compilation with -Wmissing-prototypes.
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33 off_t limit); |
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34 |
473 | 35 #endif |
36 | |
37 | |
5854
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Generalized definitions of the number of preallocated iovec's.
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38 #define NGX_SENDFILEVECS NGX_IOVS_PREALLOCATE |
428
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39 |
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40 |
585 | 41 ngx_chain_t * |
42 ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) | |
197
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43 { |
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44 int fd; |
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45 u_char *prev; |
473 | 46 off_t size, send, prev_send, aligned, fprev; |
47 size_t sent; | |
48 ssize_t n; | |
5851
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Removed the "complete" variable from various send chain functions.
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49 ngx_int_t eintr; |
198
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50 ngx_err_t err; |
428
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51 sendfilevec_t *sfv, sfvs[NGX_SENDFILEVECS]; |
197
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52 ngx_array_t vec; |
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53 ngx_event_t *wev; |
501 | 54 ngx_chain_t *cl; |
197
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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 |
452 | 62 if (!c->sendfile) { |
63 return ngx_writev_chain(c, in, limit); | |
64 } | |
65 | |
473 | 66 |
67 /* the maximum limit size is the maximum size_t value - the page size */ | |
68 | |
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69 if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) { |
477 | 70 limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize; |
473 | 71 } |
72 | |
73 | |
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74 send = 0; |
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75 |
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76 vec.elts = sfvs; |
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77 vec.size = sizeof(sendfilevec_t); |
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78 vec.nalloc = NGX_SENDFILEVECS; |
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79 vec.pool = c->pool; |
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80 |
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81 for ( ;; ) { |
197
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82 fd = SFV_FD_SELF; |
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83 prev = NULL; |
198
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84 fprev = 0; |
197
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85 sfv = NULL; |
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86 eintr = 0; |
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87 sent = 0; |
473 | 88 prev_send = send; |
197
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89 |
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90 vec.nelts = 0; |
198
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91 |
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92 /* create the sendfilevec and coalesce the neighbouring bufs */ |
197
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93 |
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94 for (cl = in; cl && send < limit; cl = cl->next) { |
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95 |
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96 if (ngx_buf_special(cl->buf)) { |
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97 continue; |
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98 } |
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99 |
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100 if (ngx_buf_in_memory_only(cl->buf)) { |
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101 fd = SFV_FD_SELF; |
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102 |
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103 size = cl->buf->last - cl->buf->pos; |
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104 |
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105 if (send + size > limit) { |
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106 size = limit - send; |
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107 } |
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108 |
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109 if (prev == cl->buf->pos) { |
473 | 110 sfv->sfv_len += (size_t) size; |
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111 |
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112 } else { |
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113 if (vec.nelts >= IOV_MAX) { |
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114 break; |
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115 } |
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116 |
501 | 117 sfv = ngx_array_push(&vec); |
118 if (sfv == NULL) { | |
428
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119 return NGX_CHAIN_ERROR; |
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120 } |
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121 |
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122 sfv->sfv_fd = SFV_FD_SELF; |
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123 sfv->sfv_flag = 0; |
344
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124 sfv->sfv_off = (off_t) (uintptr_t) cl->buf->pos; |
473 | 125 sfv->sfv_len = (size_t) size; |
197
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126 } |
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127 |
473 | 128 prev = cl->buf->pos + (size_t) size; |
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129 send += size; |
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130 |
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131 } else { |
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132 prev = NULL; |
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133 |
473 | 134 size = cl->buf->file_last - cl->buf->file_pos; |
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135 |
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136 if (send + size > limit) { |
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137 size = limit - send; |
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138 |
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139 aligned = (cl->buf->file_pos + size + ngx_pagesize - 1) |
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140 & ~((off_t) ngx_pagesize - 1); |
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141 |
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142 if (aligned <= cl->buf->file_last) { |
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143 size = aligned - cl->buf->file_pos; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
144 } |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
145 } |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
146 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
147 if (fd == cl->buf->file->fd && fprev == cl->buf->file_pos) { |
473 | 148 sfv->sfv_len += (size_t) size; |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
149 |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
150 } else { |
4596
089cc5154c1e
IOV_MAX handling microoptimization.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4595
diff
changeset
|
151 if (vec.nelts >= IOV_MAX) { |
089cc5154c1e
IOV_MAX handling microoptimization.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4595
diff
changeset
|
152 break; |
089cc5154c1e
IOV_MAX handling microoptimization.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4595
diff
changeset
|
153 } |
089cc5154c1e
IOV_MAX handling microoptimization.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4595
diff
changeset
|
154 |
501 | 155 sfv = ngx_array_push(&vec); |
156 if (sfv == NULL) { | |
428
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
362
diff
changeset
|
157 return NGX_CHAIN_ERROR; |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
362
diff
changeset
|
158 } |
5e73d0ea4dab
nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
362
diff
changeset
|
159 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
160 fd = cl->buf->file->fd; |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
161 sfv->sfv_fd = fd; |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
162 sfv->sfv_flag = 0; |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
343
diff
changeset
|
163 sfv->sfv_off = cl->buf->file_pos; |
473 | 164 sfv->sfv_len = (size_t) size; |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
165 } |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
166 |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
167 fprev = cl->buf->file_pos + size; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
168 send += size; |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
169 } |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
170 } |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
171 |
198
34995c5ec6c4
nginx-0.0.1-2003-11-27-22:01:37 import
Igor Sysoev <igor@sysoev.ru>
parents:
197
diff
changeset
|
172 n = sendfilev(c->fd, vec.elts, vec.nelts, &sent); |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
173 |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
174 if (n == -1) { |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 err = ngx_errno; |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
176 |
3063
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
177 switch (err) { |
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
178 case NGX_EAGAIN: |
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
179 break; |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
180 |
3063
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
181 case NGX_EINTR: |
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
182 eintr = 1; |
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
183 break; |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
198
diff
changeset
|
184 |
3063
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
185 default: |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
186 wev->error = 1; |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
198
diff
changeset
|
187 ngx_connection_error(c, err, "sendfilev() failed"); |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 return NGX_CHAIN_ERROR; |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
189 } |
3063
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
190 |
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
191 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, err, |
6f6d7ea70805
refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
192 "sendfilev() sent only %uz bytes", sent); |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
193 } |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
194 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
198
diff
changeset
|
195 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
461 | 196 "sendfilev: %z %z", n, sent); |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
197 |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
198 c->sent += sent; |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
199 |
5850
f9c83484d9ce
Moved the code for adjusting sent buffers in a separate function.
Valentin Bartenev <vbart@nginx.com>
parents:
5320
diff
changeset
|
200 in = ngx_handle_sent_chain(in, sent); |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
201 |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
202 if (eintr) { |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
203 continue; |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
204 } |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
205 |
5851
150df089fe47
Removed the "complete" variable from various send chain functions.
Valentin Bartenev <vbart@nginx.com>
parents:
5850
diff
changeset
|
206 if (send - prev_send != (off_t) sent) { |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
207 wev->ready = 0; |
5320
ad137a80919f
Don't lose pointer to first nonempty buf in ngx_*_sendfile_chain().
Gleb Smirnoff <glebius@nginx.com>
parents:
4759
diff
changeset
|
208 return in; |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
209 } |
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
210 |
5320
ad137a80919f
Don't lose pointer to first nonempty buf in ngx_*_sendfile_chain().
Gleb Smirnoff <glebius@nginx.com>
parents:
4759
diff
changeset
|
211 if (send >= limit || in == NULL) { |
ad137a80919f
Don't lose pointer to first nonempty buf in ngx_*_sendfile_chain().
Gleb Smirnoff <glebius@nginx.com>
parents:
4759
diff
changeset
|
212 return in; |
362
7650aea1816f
nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
344
diff
changeset
|
213 } |
197
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
214 } |
0b81c7a0b133
nginx-0.0.1-2003-11-27-10:45:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
215 } |