Mercurial > hg > nginx
annotate src/os/unix/ngx_readv_chain.c @ 469:2ff194b74f1e release-0.1.9
nginx-0.1.9-RELEASE import
*) Bugfix: the proxied request was sent without arguments if the
request contains "//", "/./", "/../" or "%XX".
*) Bugfix: the large compressed responses may be transferred not
completely.
*) Bugfix: the files bigger than 2G was not transferred on Linux that
does not support sendfile64().
*) Bugfix: while the build configuration on Linux the
--with-poll_module parameter was required; the bug had appeared in
0.1.8.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 25 Nov 2004 16:17:31 +0000 |
parents | 295d97d70c69 |
children | d4ea69372b94 |
rev | line source |
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441
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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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469 | 12 #if (NGX_HAVE_KQUEUE) |
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14 ssize_t ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *chain) |
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15 { |
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16 u_char *prev; |
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17 ssize_t n, size; |
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18 ngx_err_t err; |
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19 ngx_array_t io; |
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20 ngx_event_t *rev; |
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21 struct iovec *iov; |
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22 |
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23 rev = c->read; |
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24 |
455 | 25 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
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26 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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27 "readv: eof:%d, avail:%d, err:%d", |
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28 rev->pending_eof, rev->available, rev->kq_errno); |
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29 |
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30 if (rev->available == 0) { |
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31 if (rev->pending_eof) { |
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32 rev->ready = 0; |
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33 rev->eof = 1; |
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34 |
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35 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno, |
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36 "kevent() reported about an closed connection"); |
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37 |
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38 if (rev->kq_errno) { |
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39 rev->error = 1; |
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40 ngx_set_socket_errno(rev->kq_errno); |
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41 return NGX_ERROR; |
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42 } |
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43 |
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44 return 0; |
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45 |
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46 } else { |
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47 return NGX_AGAIN; |
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48 } |
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49 } |
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50 } |
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51 |
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52 prev = NULL; |
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53 iov = NULL; |
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54 size = 0; |
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55 |
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56 ngx_init_array(io, c->pool, 10, sizeof(struct iovec), NGX_ERROR); |
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57 |
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58 /* coalesce the neighbouring bufs */ |
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59 |
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60 while (chain) { |
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61 if (prev == chain->buf->last) { |
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62 iov->iov_len += chain->buf->end - chain->buf->last; |
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63 |
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64 } else { |
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65 ngx_test_null(iov, ngx_push_array(&io), NGX_ERROR); |
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66 iov->iov_base = (void *) chain->buf->last; |
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67 iov->iov_len = chain->buf->end - chain->buf->last; |
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68 } |
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69 |
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70 size += chain->buf->end - chain->buf->last; |
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71 prev = chain->buf->end; |
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72 chain = chain->next; |
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73 } |
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74 |
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75 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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76 "readv: %d, last:%d", io.nelts, iov->iov_len); |
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77 |
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78 rev = c->read; |
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79 |
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80 do { |
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81 n = readv(c->fd, (struct iovec *) io.elts, io.nelts); |
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82 |
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83 if (n >= 0) { |
455 | 84 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) { |
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85 rev->available -= n; |
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86 |
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87 /* |
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88 * rev->available can be negative here because some additional |
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89 * bytes can be received between kevent() and recv() |
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90 */ |
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91 |
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92 if (rev->available <= 0) { |
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93 if (!rev->pending_eof) { |
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94 rev->ready = 0; |
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95 } |
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96 |
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97 if (rev->available < 0) { |
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98 rev->available = 0; |
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99 } |
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100 } |
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101 |
188
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102 return n; |
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103 } |
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104 |
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105 if (n < size) { |
0061d1f0908d
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106 rev->ready = 0; |
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107 } |
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nginx-0.0.1-2003-11-18-11:04:34 import
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108 |
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nginx-0.0.1-2003-11-18-11:04:34 import
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109 if (n == 0) { |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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110 rev->eof = 1; |
0061d1f0908d
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111 } |
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nginx-0.0.1-2003-11-18-11:04:34 import
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112 |
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113 return n; |
73
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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114 } |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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115 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
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diff
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116 err = ngx_socket_errno; |
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diff
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117 |
70e1c7d2b83d
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118 if (err == NGX_EAGAIN || err == NGX_EINTR) { |
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119 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
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parents:
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120 "readv() not ready"); |
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parents:
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diff
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121 n = NGX_AGAIN; |
188
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122 |
257
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parents:
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123 } else { |
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124 n = ngx_connection_error(c, err, "readv() failed"); |
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nginx-0.0.2-2004-02-11-20:08:49 import
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125 break; |
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nginx-0.0.2-2004-02-11-20:08:49 import
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parents:
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126 } |
188
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127 |
257
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nginx-0.0.2-2004-02-11-20:08:49 import
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parents:
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diff
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128 } while (err == NGX_EINTR); |
188
0061d1f0908d
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129 |
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130 rev->ready = 0; |
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131 |
0061d1f0908d
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parents:
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132 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
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133 c->read->error = 1; |
73
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
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parents:
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134 } |
4534060fde92
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parents:
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135 |
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parents:
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136 return n; |
4534060fde92
nginx-0.0.1-2003-04-10-19:08:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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|
137 } |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
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138 |
469 | 139 #else /* ! NGX_HAVE_KQUEUE */ |
188
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140 |
0061d1f0908d
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141 ssize_t ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *chain) |
0061d1f0908d
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parents:
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diff
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|
142 { |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
303
diff
changeset
|
143 u_char *prev; |
188
0061d1f0908d
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parents:
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144 ssize_t n, size; |
0061d1f0908d
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parents:
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145 ngx_err_t err; |
0061d1f0908d
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parents:
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|
146 ngx_array_t io; |
0061d1f0908d
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parents:
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147 ngx_event_t *rev; |
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
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|
148 struct iovec *iov; |
188
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nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
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diff
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|
149 |
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150 prev = NULL; |
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151 iov = NULL; |
0061d1f0908d
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152 size = 0; |
0061d1f0908d
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parents:
164
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|
153 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
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154 ngx_init_array(io, c->pool, 10, sizeof(struct iovec), NGX_ERROR); |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
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155 |
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
|
156 /* coalesce the neighbouring bufs */ |
188
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
157 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
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|
158 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
|
159 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
|
160 iov->iov_len += chain->buf->end - chain->buf->last; |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
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|
161 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
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|
162 } else { |
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 ngx_test_null(iov, ngx_push_array(&io), NGX_ERROR); |
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
|
164 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
|
165 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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|
166 } |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
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|
167 |
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
|
168 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
|
169 prev = chain->buf->end; |
188
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
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|
170 chain = chain->next; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
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|
171 } |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
172 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
173 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
174 "readv: %d:%d", io.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
|
175 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
changeset
|
176 rev = c->read; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
changeset
|
177 |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
changeset
|
178 do { |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
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parents:
164
diff
changeset
|
179 n = readv(c->fd, (struct iovec *) io.elts, io.nelts); |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
180 |
328
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
181 if (n == 0) { |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
182 rev->ready = 0; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
183 rev->eof = 1; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
184 |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
185 return n; |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
186 |
fb4dfb2ac0fc
nginx-0.0.3-2004-04-28-10:14:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
187 } 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
|
188 |
455 | 189 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
|
190 rev->ready = 0; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
191 } |
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 return n; |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
194 } |
0061d1f0908d
nginx-0.0.1-2003-11-18-11:04:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
164
diff
changeset
|
195 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
196 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
|
197 |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
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parents:
188
diff
changeset
|
198 if (err == NGX_EAGAIN || err == NGX_EINTR) { |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
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parents:
188
diff
changeset
|
199 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
|
200 "readv() not ready"); |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
201 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
|
202 |
257
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
203 } else { |
70e1c7d2b83d
nginx-0.0.2-2004-02-11-20:08:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
188
diff
changeset
|
204 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
|
205 break; |
70e1c7d2b83d
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206 } |
188
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207 |
257
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208 } while (err == NGX_EINTR); |
188
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209 |
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210 rev->ready = 0; |
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211 |
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212 if (n == NGX_ERROR){ |
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213 c->read->error = 1; |
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214 } |
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215 |
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216 return n; |
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217 } |
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218 |
469 | 219 #endif /* NGX_HAVE_KQUEUE */ |