Mercurial > hg > nginx-quic
annotate src/event/modules/ngx_win32_select_module.c @ 8869:f8f6b9fee66a
FastCGI: combining headers with identical names (ticket #1724).
FastCGI responder is expected to receive CGI/1.1 environment variables
in the parameters (see section "6.2 Responder" of the FastCGI specification).
Obviously enough, there cannot be multiple environment variables with
the same name.
Further, CGI specification (RFC 3875, section "4.1.18. Protocol-Specific
Meta-Variables") explicitly requires to combine headers: "If multiple
header fields with the same field-name are received then the server MUST
rewrite them as a single value having the same semantics".
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 30 May 2022 21:25:27 +0300 |
parents | efd71d49bde0 |
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rev | line source |
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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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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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12 |
563 | 13 static ngx_int_t ngx_select_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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14 static void ngx_select_done(ngx_cycle_t *cycle); |
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15 static ngx_int_t ngx_select_add_event(ngx_event_t *ev, ngx_int_t event, |
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16 ngx_uint_t flags); |
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17 static ngx_int_t ngx_select_del_event(ngx_event_t *ev, ngx_int_t event, |
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18 ngx_uint_t flags); |
563 | 19 static ngx_int_t ngx_select_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
20 ngx_uint_t flags); | |
2780 | 21 static void ngx_select_repair_fd_sets(ngx_cycle_t *cycle); |
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22 static char *ngx_select_init_conf(ngx_cycle_t *cycle, void *conf); |
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23 |
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24 |
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25 static fd_set master_read_fd_set; |
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26 static fd_set master_write_fd_set; |
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27 static fd_set work_read_fd_set; |
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28 static fd_set work_write_fd_set; |
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29 static fd_set work_except_fd_set; |
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30 |
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31 static ngx_uint_t max_read; |
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32 static ngx_uint_t max_write; |
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33 static ngx_uint_t nevents; |
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34 |
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35 static ngx_event_t **event_index; |
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36 |
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37 |
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Added missing static specifiers.
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38 static ngx_str_t select_name = ngx_string("select"); |
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39 |
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40 static ngx_event_module_t ngx_select_module_ctx = { |
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41 &select_name, |
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42 NULL, /* create configuration */ |
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43 ngx_select_init_conf, /* init configuration */ |
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44 |
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45 { |
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46 ngx_select_add_event, /* add an event */ |
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47 ngx_select_del_event, /* delete an event */ |
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48 ngx_select_add_event, /* enable an event */ |
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49 ngx_select_del_event, /* disable an event */ |
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50 NULL, /* add an connection */ |
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51 NULL, /* delete an connection */ |
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52 NULL, /* trigger a notify */ |
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53 ngx_select_process_events, /* process the events */ |
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54 ngx_select_init, /* init the events */ |
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55 ngx_select_done /* done the events */ |
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56 } |
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57 |
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58 }; |
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59 |
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60 ngx_module_t ngx_select_module = { |
509 | 61 NGX_MODULE_V1, |
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62 &ngx_select_module_ctx, /* module context */ |
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63 NULL, /* module directives */ |
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64 NGX_EVENT_MODULE, /* module type */ |
541 | 65 NULL, /* init master */ |
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66 NULL, /* init module */ |
541 | 67 NULL, /* init process */ |
68 NULL, /* init thread */ | |
69 NULL, /* exit thread */ | |
70 NULL, /* exit process */ | |
71 NULL, /* exit master */ | |
72 NGX_MODULE_V1_PADDING | |
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73 }; |
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74 |
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75 |
501 | 76 static ngx_int_t |
563 | 77 ngx_select_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
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78 { |
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79 ngx_event_t **index; |
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80 |
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81 if (event_index == NULL) { |
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82 FD_ZERO(&master_read_fd_set); |
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83 FD_ZERO(&master_write_fd_set); |
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84 nevents = 0; |
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85 } |
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86 |
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87 if (ngx_process >= NGX_PROCESS_WORKER |
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88 || cycle->old_cycle == NULL |
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89 || cycle->old_cycle->connection_n < cycle->connection_n) |
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90 { |
501 | 91 index = ngx_alloc(sizeof(ngx_event_t *) * 2 * cycle->connection_n, |
92 cycle->log); | |
93 if (index == NULL) { | |
94 return NGX_ERROR; | |
95 } | |
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96 |
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97 if (event_index) { |
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98 ngx_memcpy(index, event_index, sizeof(ngx_event_t *) * nevents); |
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99 ngx_free(event_index); |
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100 } |
563 | 101 |
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102 event_index = index; |
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103 } |
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104 |
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105 ngx_io = ngx_os_io; |
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106 |
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107 ngx_event_actions = ngx_select_module_ctx.actions; |
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108 |
563 | 109 ngx_event_flags = NGX_USE_LEVEL_EVENT; |
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110 |
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111 max_read = 0; |
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112 max_write = 0; |
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113 |
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114 return NGX_OK; |
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115 } |
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116 |
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117 |
501 | 118 static void |
119 ngx_select_done(ngx_cycle_t *cycle) | |
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120 { |
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121 ngx_free(event_index); |
114
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
122 |
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
123 event_index = NULL; |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
124 } |
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
125 |
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
126 |
501 | 127 static ngx_int_t |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
708
diff
changeset
|
128 ngx_select_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 { |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
38
diff
changeset
|
130 ngx_connection_t *c; |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
131 |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
132 c = ev->data; |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
133 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
230
diff
changeset
|
134 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
708
diff
changeset
|
135 "select add event fd:%d ev:%i", c->fd, event); |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
136 |
38
2ffaa35fba42
nginx-0.0.1-2002-12-24-10:09:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
137 if (ev->index != NGX_INVALID_INDEX) { |
2ffaa35fba42
nginx-0.0.1-2002-12-24-10:09:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
138 ngx_log_error(NGX_LOG_ALERT, ev->log, 0, |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
708
diff
changeset
|
139 "select event fd:%d ev:%i is already set", c->fd, event); |
38
2ffaa35fba42
nginx-0.0.1-2002-12-24-10:09:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
140 return NGX_OK; |
2ffaa35fba42
nginx-0.0.1-2002-12-24-10:09:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
141 } |
2ffaa35fba42
nginx-0.0.1-2002-12-24-10:09:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
142 |
2808
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
143 if ((event == NGX_READ_EVENT && ev->write) |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
144 || (event == NGX_WRITE_EVENT && !ev->write)) |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
145 { |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
146 ngx_log_error(NGX_LOG_ALERT, ev->log, 0, |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
147 "invalid select %s event fd:%d ev:%i", |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
148 ev->write ? "write" : "read", c->fd, event); |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
149 return NGX_ERROR; |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
150 } |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
151 |
5360
3d2d3e1cf427
Win32: MinGW GCC compatibility.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
152 if ((event == NGX_READ_EVENT && max_read >= FD_SETSIZE) |
3d2d3e1cf427
Win32: MinGW GCC compatibility.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
153 || (event == NGX_WRITE_EVENT && max_write >= FD_SETSIZE)) |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
154 { |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
155 ngx_log_error(NGX_LOG_ERR, ev->log, 0, |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
156 "maximum number of descriptors " |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
157 "supported by select() is %d", FD_SETSIZE); |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
158 return NGX_ERROR; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
159 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
160 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
161 if (event == NGX_READ_EVENT) { |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
162 FD_SET(c->fd, &master_read_fd_set); |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
163 max_read++; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
164 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
165 } else if (event == NGX_WRITE_EVENT) { |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
166 FD_SET(c->fd, &master_write_fd_set); |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
167 max_write++; |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
168 } |
179
9f3a78b06c48
nginx-0.0.1-2003-11-11-21:13:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
178
diff
changeset
|
169 |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
38
diff
changeset
|
170 ev->active = 1; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
171 |
17
8dd06e2844f5
nginx-0.0.1-2002-09-27-19:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
13
diff
changeset
|
172 event_index[nevents] = ev; |
8dd06e2844f5
nginx-0.0.1-2002-09-27-19:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
13
diff
changeset
|
173 ev->index = nevents; |
8dd06e2844f5
nginx-0.0.1-2002-09-27-19:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
13
diff
changeset
|
174 nevents++; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
176 return NGX_OK; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
177 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
178 |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
179 |
501 | 180 static ngx_int_t |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
708
diff
changeset
|
181 ngx_select_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
182 { |
2809 | 183 ngx_event_t *e; |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
184 ngx_connection_t *c; |
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
185 |
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
186 c = ev->data; |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
187 |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
302
diff
changeset
|
188 ev->active = 0; |
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
302
diff
changeset
|
189 |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
190 if (ev->index == NGX_INVALID_INDEX) { |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
23
diff
changeset
|
191 return NGX_OK; |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
192 } |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
23
diff
changeset
|
193 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
230
diff
changeset
|
194 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
708
diff
changeset
|
195 "select del event fd:%d ev:%i", c->fd, event); |
23
f540a63026c9
nginx-0.0.1-2002-12-06-19:32:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
17
diff
changeset
|
196 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
197 if (event == NGX_READ_EVENT) { |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
198 FD_CLR(c->fd, &master_read_fd_set); |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
199 max_read--; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
200 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
201 } else if (event == NGX_WRITE_EVENT) { |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
202 FD_CLR(c->fd, &master_write_fd_set); |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
203 max_write--; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
204 } |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
205 |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
708
diff
changeset
|
206 if (ev->index < --nevents) { |
2809 | 207 e = event_index[nevents]; |
208 event_index[ev->index] = e; | |
209 e->index = ev->index; | |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
210 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
211 |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
23
diff
changeset
|
212 ev->index = NGX_INVALID_INDEX; |
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
23
diff
changeset
|
213 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
214 return NGX_OK; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
215 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
216 |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
217 |
501 | 218 static ngx_int_t |
563 | 219 ngx_select_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
220 ngx_uint_t flags) | |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
221 { |
2778 | 222 int ready, nready; |
223 ngx_err_t err; | |
224 ngx_uint_t i, found; | |
5821
3f5f0ab59b35
Events: processing of posted events changed from LIFO to FIFO.
Valentin Bartenev <vbart@nginx.com>
parents:
5820
diff
changeset
|
225 ngx_event_t *ev; |
3f5f0ab59b35
Events: processing of posted events changed from LIFO to FIFO.
Valentin Bartenev <vbart@nginx.com>
parents:
5820
diff
changeset
|
226 ngx_queue_t *queue; |
2778 | 227 struct timeval tv, *tp; |
228 ngx_connection_t *c; | |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
229 |
315
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
230 #if (NGX_DEBUG) |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
321
diff
changeset
|
231 if (cycle->log->log_level & NGX_LOG_DEBUG_ALL) { |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
321
diff
changeset
|
232 for (i = 0; i < nevents; i++) { |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
321
diff
changeset
|
233 ev = event_index[i]; |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
321
diff
changeset
|
234 c = ev->data; |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
321
diff
changeset
|
235 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
321
diff
changeset
|
236 "select event: fd:%d wr:%d", c->fd, ev->write); |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
321
diff
changeset
|
237 } |
315
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
238 } |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
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239 #endif |
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240 |
316
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241 if (timer == NGX_TIMER_INFINITE) { |
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242 tp = NULL; |
315
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243 |
316
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244 } else { |
557 | 245 tv.tv_sec = (long) (timer / 1000); |
246 tv.tv_usec = (long) ((timer % 1000) * 1000); | |
315
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247 tp = &tv; |
26
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248 } |
314
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249 |
302
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250 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
557 | 251 "select timer: %M", timer); |
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252 |
315
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253 work_read_fd_set = master_read_fd_set; |
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254 work_write_fd_set = master_write_fd_set; |
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255 work_except_fd_set = master_write_fd_set; |
315
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256 |
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257 if (max_read || max_write) { |
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258 ready = select(0, &work_read_fd_set, &work_write_fd_set, |
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259 &work_except_fd_set, tp); |
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260 |
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261 } else { |
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262 |
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263 /* |
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264 * Winsock select() requires that at least one descriptor set must be |
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265 * be non-null, and any non-null descriptor set must contain at least |
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266 * one handle to a socket. Otherwise select() returns WSAEINVAL. |
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267 */ |
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268 |
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269 ngx_msleep(timer); |
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270 |
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271 ready = 0; |
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272 } |
563 | 273 |
3043 | 274 err = (ready == -1) ? ngx_socket_errno : 0; |
0
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275 |
563 | 276 if (flags & NGX_UPDATE_TIME) { |
3475
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277 ngx_time_update(); |
563 | 278 } |
178
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279 |
302
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280 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
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281 "select ready %d", ready); |
245
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282 |
114
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283 if (err) { |
302
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284 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, "select() failed"); |
2780 | 285 |
286 if (err == WSAENOTSOCK) { | |
287 ngx_select_repair_fd_sets(cycle); | |
288 } | |
289 | |
114
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290 return NGX_ERROR; |
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291 } |
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292 |
567 | 293 if (ready == 0) { |
294 if (timer != NGX_TIMER_INFINITE) { | |
295 return NGX_OK; | |
296 } | |
297 | |
298 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
299 "select() returned no events without timeout"); | |
300 return NGX_ERROR; | |
563 | 301 } |
302 | |
17
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303 nready = 0; |
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304 |
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305 for (i = 0; i < nevents; i++) { |
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306 ev = event_index[i]; |
250
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307 c = ev->data; |
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308 found = 0; |
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309 |
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310 if (ev->write) { |
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311 if (FD_ISSET(c->fd, &work_write_fd_set)) { |
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312 found++; |
302
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313 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
245
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314 "select write %d", c->fd); |
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315 } |
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316 |
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317 if (FD_ISSET(c->fd, &work_except_fd_set)) { |
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318 found++; |
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319 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
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320 "select except %d", c->fd); |
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321 } |
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322 |
0
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323 } else { |
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324 if (FD_ISSET(c->fd, &work_read_fd_set)) { |
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325 found++; |
302
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326 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
245
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327 "select read %d", c->fd); |
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328 } |
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329 } |
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330 |
17
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331 if (found) { |
314
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332 ev->ready = 1; |
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333 ev->available = -1; |
314
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334 |
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335 queue = ev->accept ? &ngx_posted_accept_events |
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336 : &ngx_posted_events; |
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337 |
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338 ngx_post_event(ev, queue); |
314
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339 |
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340 nready += found; |
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341 } |
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342 } |
13
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343 |
314
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344 if (ready != nready) { |
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345 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
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346 "select ready != events: %d:%d", ready, nready); |
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347 |
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348 ngx_select_repair_fd_sets(cycle); |
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349 } |
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350 |
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351 return NGX_OK; |
0
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352 } |
91
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353 |
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354 |
2780 | 355 static void |
356 ngx_select_repair_fd_sets(ngx_cycle_t *cycle) | |
357 { | |
358 int n; | |
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359 u_int i; |
2780 | 360 socklen_t len; |
361 ngx_err_t err; | |
362 ngx_socket_t s; | |
363 | |
364 for (i = 0; i < master_read_fd_set.fd_count; i++) { | |
365 | |
366 s = master_read_fd_set.fd_array[i]; | |
367 len = sizeof(int); | |
368 | |
369 if (getsockopt(s, SOL_SOCKET, SO_TYPE, (char *) &n, &len) == -1) { | |
370 err = ngx_socket_errno; | |
371 | |
372 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
373 "invalid descriptor #%d in read fd_set", s); | |
374 | |
375 FD_CLR(s, &master_read_fd_set); | |
376 } | |
377 } | |
378 | |
379 for (i = 0; i < master_write_fd_set.fd_count; i++) { | |
380 | |
381 s = master_write_fd_set.fd_array[i]; | |
382 len = sizeof(int); | |
383 | |
384 if (getsockopt(s, SOL_SOCKET, SO_TYPE, (char *) &n, &len) == -1) { | |
385 err = ngx_socket_errno; | |
386 | |
387 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
388 "invalid descriptor #%d in write fd_set", s); | |
389 | |
390 FD_CLR(s, &master_write_fd_set); | |
391 } | |
392 } | |
393 } | |
394 | |
395 | |
501 | 396 static char * |
397 ngx_select_init_conf(ngx_cycle_t *cycle, void *conf) | |
91
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398 { |
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399 ngx_event_conf_t *ecf; |
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400 |
114
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
107
diff
changeset
|
401 ecf = ngx_event_get_conf(cycle->conf_ctx, ngx_event_core_module); |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
402 |
321
32847588a82a
nginx-0.0.3-2004-04-19-20:36:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
403 if (ecf->use != ngx_select_module.ctx_index) { |
32847588a82a
nginx-0.0.3-2004-04-19-20:36:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
404 return NGX_CONF_OK; |
32847588a82a
nginx-0.0.3-2004-04-19-20:36:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
405 } |
32847588a82a
nginx-0.0.3-2004-04-19-20:36:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
406 |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
407 return NGX_CONF_OK; |
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
408 } |