Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_readv_chain.c @ 547:818fbd4750b9 release-0.2.2
nginx-0.2.2-RELEASE import
*) Feature: the "config errmsg" command of the ngx_http_ssi_module.
*) Change: the ngx_http_geo_module variables can be overridden by the
"set" directive.
*) Feature: the "ssl_protocols" and "ssl_prefer_server_ciphers"
directives of the ngx_http_ssl_module and ngx_imap_ssl_module.
*) Bugfix: the ngx_http_autoindex_module did not show correctly the
long file names;
*) Bugfix: the ngx_http_autoindex_module now do not show the files
starting by dot.
*) Bugfix: if the SSL handshake failed then another connection may be
closed too.
Thanks to Rob Mueller.
*) Bugfix: the export versions of MSIE 5.x could not connect via HTTPS.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 30 Sep 2005 14:41:25 +0000 |
parents | d4ea69372b94 |
children | e48ebafc6939 |
rev | line source |
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1 |
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2 /* |
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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> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 |
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11 |
501 | 12 #define NGX_IOVS 16 |
13 | |
14 | |
469 | 15 #if (NGX_HAVE_KQUEUE) |
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16 |
501 | 17 ssize_t |
18 ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *chain) | |
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19 { |
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20 u_char *prev; |
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21 ssize_t n, size; |
74
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22 ngx_err_t err; |
501 | 23 ngx_array_t vec; |
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24 ngx_event_t *rev; |
501 | 25 struct iovec *iov, iovs[NGX_IOVS]; |
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26 |
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27 rev = c->read; |
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28 |
455 | 29 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
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30 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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31 "readv: eof:%d, avail:%d, err:%d", |
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32 rev->pending_eof, rev->available, rev->kq_errno); |
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33 |
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34 if (rev->available == 0) { |
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35 if (rev->pending_eof) { |
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36 rev->ready = 0; |
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37 rev->eof = 1; |
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38 |
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39 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno, |
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40 "kevent() reported about an closed connection"); |
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41 |
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42 if (rev->kq_errno) { |
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43 rev->error = 1; |
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44 ngx_set_socket_errno(rev->kq_errno); |
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45 return NGX_ERROR; |
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46 } |
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47 |
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48 return 0; |
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49 |
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50 } else { |
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51 return NGX_AGAIN; |
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52 } |
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53 } |
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54 } |
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55 |
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56 prev = NULL; |
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57 iov = NULL; |
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58 size = 0; |
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59 |
501 | 60 vec.elts = iovs; |
61 vec.nelts = 0; | |
62 vec.size = sizeof(struct iovec); | |
63 vec.nalloc = NGX_IOVS; | |
64 vec.pool = c->pool; | |
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65 |
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66 /* coalesce the neighbouring bufs */ |
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67 |
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68 while (chain) { |
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69 if (prev == chain->buf->last) { |
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70 iov->iov_len += chain->buf->end - chain->buf->last; |
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71 |
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72 } else { |
501 | 73 iov = ngx_array_push(&vec); |
74 if (iov == NULL) { | |
75 return NGX_ERROR; | |
76 } | |
77 | |
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78 iov->iov_base = (void *) chain->buf->last; |
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79 iov->iov_len = chain->buf->end - chain->buf->last; |
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80 } |
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81 |
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82 size += chain->buf->end - chain->buf->last; |
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83 prev = chain->buf->end; |
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84 chain = chain->next; |
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85 } |
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86 |
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87 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
501 | 88 "readv: %d, last:%d", vec.nelts, iov->iov_len); |
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89 |
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90 rev = c->read; |
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91 |
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92 do { |
501 | 93 n = readv(c->fd, (struct iovec *) vec.elts, vec.nelts); |
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94 |
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95 if (n >= 0) { |
455 | 96 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
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97 rev->available -= n; |
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98 |
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99 /* |
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100 * rev->available can be negative here because some additional |
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101 * bytes can be received between kevent() and recv() |
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102 */ |
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103 |
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104 if (rev->available <= 0) { |
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105 if (!rev->pending_eof) { |
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106 rev->ready = 0; |
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107 } |
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108 |
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109 if (rev->available < 0) { |
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110 rev->available = 0; |
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111 } |
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112 } |
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113 |
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114 return n; |
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115 } |
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116 |
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117 if (n < size) { |
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118 rev->ready = 0; |
0061d1f0908d
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|
119 } |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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164
diff
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120 |
0061d1f0908d
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164
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121 if (n == 0) { |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
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122 rev->eof = 1; |
0061d1f0908d
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parents:
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123 } |
0061d1f0908d
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124 |
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125 return n; |
73
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
126 } |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
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128 err = ngx_socket_errno; |
70e1c7d2b83d
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parents:
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diff
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129 |
70e1c7d2b83d
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parents:
188
diff
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130 if (err == NGX_EAGAIN || err == NGX_EINTR) { |
70e1c7d2b83d
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parents:
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diff
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131 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
70e1c7d2b83d
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Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
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|
132 "readv() not ready"); |
70e1c7d2b83d
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parents:
188
diff
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133 n = NGX_AGAIN; |
188
0061d1f0908d
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parents:
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diff
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|
134 |
257
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parents:
188
diff
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|
135 } else { |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
136 n = ngx_connection_error(c, err, "readv() failed"); |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
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|
137 break; |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
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|
138 } |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
139 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
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|
140 } while (err == NGX_EINTR); |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
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141 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
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142 rev->ready = 0; |
0061d1f0908d
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parents:
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143 |
0061d1f0908d
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Igor Sysoev <igor@sysoev.ru>
parents:
164
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|
144 if (n == NGX_ERROR){ |
164
84036764e215
nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents:
163
diff
changeset
|
145 c->read->error = 1; |
73
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
146 } |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
147 |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
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parents:
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|
148 return n; |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
149 } |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
150 |
469 | 151 #else /* ! NGX_HAVE_KQUEUE */ |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
152 |
501 | 153 ssize_t |
154 ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *chain) | |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
155 { |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
303
diff
changeset
|
156 u_char *prev; |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
157 ssize_t n, size; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
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|
158 ngx_err_t err; |
501 | 159 ngx_array_t vec; |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
160 ngx_event_t *rev; |
501 | 161 struct iovec *iov, iovs[NGX_IOVS]; |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
162 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
163 prev = NULL; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
164 iov = NULL; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
165 size = 0; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
166 |
501 | 167 vec.elts = iovs; |
168 vec.nelts = 0; | |
169 vec.size = sizeof(struct iovec); | |
170 vec.nalloc = NGX_IOVS; | |
171 vec.pool = c->pool; | |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
172 |
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:
328
diff
changeset
|
173 /* coalesce the neighbouring bufs */ |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
174 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
175 while (chain) { |
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:
328
diff
changeset
|
176 if (prev == chain->buf->last) { |
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:
328
diff
changeset
|
177 iov->iov_len += chain->buf->end - chain->buf->last; |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
178 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
179 } else { |
501 | 180 iov = ngx_array_push(&vec); |
181 if (iov == NULL) { | |
182 return NGX_ERROR; | |
183 } | |
184 | |
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:
328
diff
changeset
|
185 iov->iov_base = chain->buf->last; |
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:
328
diff
changeset
|
186 iov->iov_len = chain->buf->end - chain->buf->last; |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
187 } |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
188 |
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:
328
diff
changeset
|
189 size += chain->buf->end - chain->buf->last; |
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:
328
diff
changeset
|
190 prev = chain->buf->end; |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
191 chain = chain->next; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
192 } |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
193 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
194 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
501 | 195 "readv: %d:%d", vec.nelts, iov->iov_len); |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
196 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
197 rev = c->read; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
198 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
199 do { |
501 | 200 n = readv(c->fd, (struct iovec *) vec.elts, vec.nelts); |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
201 |
328
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
202 if (n == 0) { |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
203 rev->ready = 0; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
204 rev->eof = 1; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
205 |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
206 return n; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
207 |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
208 } else if (n > 0) { |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
209 |
455 | 210 if (n < size && !(ngx_event_flags & NGX_USE_GREEDY_EVENT)) { |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
211 rev->ready = 0; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
212 } |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
213 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
214 return n; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
215 } |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
216 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
217 err = ngx_socket_errno; |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
218 |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
219 if (err == NGX_EAGAIN || err == NGX_EINTR) { |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
220 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
221 "readv() not ready"); |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
222 n = NGX_AGAIN; |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
223 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
224 } else { |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
225 n = ngx_connection_error(c, err, "readv() failed"); |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
226 break; |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
227 } |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
228 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
229 } while (err == NGX_EINTR); |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
230 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
231 rev->ready = 0; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
232 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
233 if (n == NGX_ERROR){ |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
234 c->read->error = 1; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
235 } |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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236 |
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nginx-0.0.1-2003-11-18-11:04:34 import
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237 return n; |
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nginx-0.0.1-2003-11-18-11:04:34 import
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238 } |
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nginx-0.0.1-2003-11-18-11:04:34 import
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239 |
469 | 240 #endif /* NGX_HAVE_KQUEUE */ |