Mercurial > hg > nginx
annotate src/event/modules/ngx_win32_select_module.c @ 2813:c00763aa5e1b
divide select module into two modules: Unix and Win32 ones
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Wed, 06 May 2009 14:53:54 +0000 |
parents | src/event/modules/ngx_select_module.c@be08552a64bf |
children | a66d6dfd53f1 e1409e56ba7c |
rev | line source |
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91
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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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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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11 |
563 | 12 static ngx_int_t ngx_select_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
114
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13 static void ngx_select_done(ngx_cycle_t *cycle); |
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14 static ngx_int_t ngx_select_add_event(ngx_event_t *ev, ngx_int_t event, |
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15 ngx_uint_t flags); |
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16 static ngx_int_t ngx_select_del_event(ngx_event_t *ev, ngx_int_t event, |
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17 ngx_uint_t flags); |
563 | 18 static ngx_int_t ngx_select_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
19 ngx_uint_t flags); | |
2780 | 20 static void ngx_select_repair_fd_sets(ngx_cycle_t *cycle); |
114
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21 static char *ngx_select_init_conf(ngx_cycle_t *cycle, void *conf); |
91
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22 |
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24 static fd_set master_read_fd_set; |
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25 static fd_set master_write_fd_set; |
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26 static fd_set work_read_fd_set; |
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27 static fd_set work_write_fd_set; |
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28 |
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29 static ngx_uint_t max_read; |
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30 static ngx_uint_t max_write; |
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31 static ngx_uint_t nevents; |
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32 |
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33 static ngx_event_t **event_index; |
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34 |
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35 |
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36 static ngx_str_t select_name = ngx_string("select"); |
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37 |
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38 ngx_event_module_t ngx_select_module_ctx = { |
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39 &select_name, |
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40 NULL, /* create configuration */ |
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41 ngx_select_init_conf, /* init configuration */ |
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42 |
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43 { |
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44 ngx_select_add_event, /* add an event */ |
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45 ngx_select_del_event, /* delete an event */ |
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46 ngx_select_add_event, /* enable an event */ |
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47 ngx_select_del_event, /* disable an event */ |
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48 NULL, /* add an connection */ |
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49 NULL, /* delete an connection */ |
380
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50 NULL, /* process the changes */ |
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51 ngx_select_process_events, /* process the events */ |
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52 ngx_select_init, /* init the events */ |
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53 ngx_select_done /* done the events */ |
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54 } |
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55 |
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56 }; |
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57 |
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58 ngx_module_t ngx_select_module = { |
509 | 59 NGX_MODULE_V1, |
91
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60 &ngx_select_module_ctx, /* module context */ |
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61 NULL, /* module directives */ |
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62 NGX_EVENT_MODULE, /* module type */ |
541 | 63 NULL, /* init master */ |
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64 NULL, /* init module */ |
541 | 65 NULL, /* init process */ |
66 NULL, /* init thread */ | |
67 NULL, /* exit thread */ | |
68 NULL, /* exit process */ | |
69 NULL, /* exit master */ | |
70 NGX_MODULE_V1_PADDING | |
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71 }; |
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72 |
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73 |
501 | 74 static ngx_int_t |
563 | 75 ngx_select_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
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76 { |
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77 ngx_event_t **index; |
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78 |
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79 if (event_index == NULL) { |
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80 FD_ZERO(&master_read_fd_set); |
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81 FD_ZERO(&master_write_fd_set); |
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82 nevents = 0; |
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83 } |
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84 |
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85 if (ngx_process == NGX_PROCESS_WORKER |
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86 || cycle->old_cycle == NULL |
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87 || cycle->old_cycle->connection_n < cycle->connection_n) |
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88 { |
501 | 89 index = ngx_alloc(sizeof(ngx_event_t *) * 2 * cycle->connection_n, |
90 cycle->log); | |
91 if (index == NULL) { | |
92 return NGX_ERROR; | |
93 } | |
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94 |
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95 if (event_index) { |
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96 ngx_memcpy(index, event_index, sizeof(ngx_event_t *) * nevents); |
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97 ngx_free(event_index); |
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98 } |
563 | 99 |
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100 event_index = index; |
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101 } |
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102 |
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103 ngx_io = ngx_os_io; |
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104 |
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105 ngx_event_actions = ngx_select_module_ctx.actions; |
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106 |
563 | 107 ngx_event_flags = NGX_USE_LEVEL_EVENT; |
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108 |
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109 max_read = 0; |
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110 max_write = 0; |
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111 |
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112 return NGX_OK; |
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113 } |
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114 |
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115 |
501 | 116 static void |
117 ngx_select_done(ngx_cycle_t *cycle) | |
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118 { |
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119 ngx_free(event_index); |
114
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120 |
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121 event_index = NULL; |
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Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
122 } |
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
123 |
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
124 |
501 | 125 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
|
126 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
|
127 { |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
38
diff
changeset
|
128 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
|
129 |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
130 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
|
131 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
230
diff
changeset
|
132 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
|
133 "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
|
134 |
38
2ffaa35fba42
nginx-0.0.1-2002-12-24-10:09:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
135 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
|
136 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
|
137 "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
|
138 return NGX_OK; |
2ffaa35fba42
nginx-0.0.1-2002-12-24-10:09:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
139 } |
2ffaa35fba42
nginx-0.0.1-2002-12-24-10:09:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
140 |
2808
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
141 if ((event == NGX_READ_EVENT && ev->write) |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
142 || (event == NGX_WRITE_EVENT && !ev->write)) |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
143 { |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
144 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
|
145 "invalid select %s event fd:%d ev:%i", |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
146 ev->write ? "write" : "read", c->fd, event); |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
147 return NGX_ERROR; |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
148 } |
b7b2b0ea3366
test event type to prevent errors
Igor Sysoev <igor@sysoev.ru>
parents:
2781
diff
changeset
|
149 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
150 if ((event == NGX_READ_EVENT) && (max_read >= FD_SETSIZE) |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
151 || (event == NGX_WRITE_EVENT) && (max_write >= FD_SETSIZE)) |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
152 { |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
153 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
|
154 "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
|
155 "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
|
156 return NGX_ERROR; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
157 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
158 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
159 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
|
160 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
|
161 max_read++; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
162 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
163 } 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
|
164 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
|
165 max_write++; |
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
166 } |
179
9f3a78b06c48
nginx-0.0.1-2003-11-11-21:13:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
178
diff
changeset
|
167 |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
38
diff
changeset
|
168 ev->active = 1; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
169 |
17
8dd06e2844f5
nginx-0.0.1-2002-09-27-19:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
13
diff
changeset
|
170 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
|
171 ev->index = nevents; |
8dd06e2844f5
nginx-0.0.1-2002-09-27-19:05:29 import
Igor Sysoev <igor@sysoev.ru>
parents:
13
diff
changeset
|
172 nevents++; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
173 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
174 return NGX_OK; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
176 |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
177 |
501 | 178 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
|
179 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
|
180 { |
2809 | 181 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
|
182 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
|
183 |
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
184 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
|
185 |
314
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
302
diff
changeset
|
186 ev->active = 0; |
d71c87d11b16
nginx-0.0.3-2004-04-14-09:57:36 import
Igor Sysoev <igor@sysoev.ru>
parents:
302
diff
changeset
|
187 |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
188 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
|
189 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
|
190 } |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
23
diff
changeset
|
191 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
230
diff
changeset
|
192 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
|
193 "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
|
194 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
195 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
|
196 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
|
197 max_read--; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
198 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
199 } 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
|
200 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
|
201 max_write--; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
202 } |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
203 |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
708
diff
changeset
|
204 if (ev->index < --nevents) { |
2809 | 205 e = event_index[nevents]; |
206 event_index[ev->index] = e; | |
207 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
|
208 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
209 |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
23
diff
changeset
|
210 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
|
211 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
212 return NGX_OK; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 } |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
214 |
91
637625a2acdb
nginx-0.0.1-2003-05-19-20:39:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
215 |
501 | 216 static ngx_int_t |
563 | 217 ngx_select_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
218 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
|
219 { |
2778 | 220 int ready, nready; |
221 ngx_err_t err; | |
222 ngx_uint_t i, found; | |
223 ngx_event_t *ev, **queue; | |
224 struct timeval tv, *tp; | |
225 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
|
226 |
315
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
227 #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
|
228 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
|
229 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
|
230 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
|
231 c = ev->data; |
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
321
diff
changeset
|
232 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
|
233 "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
|
234 } |
315
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
235 } |
39b6f2df45c0
nginx-0.0.3-2004-04-14-21:44:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
236 #endif |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
237 |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
315
diff
changeset
|
238 if (timer == NGX_TIMER_INFINITE) { |
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
315
diff
changeset
|
239 tp = NULL; |
315
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240 |
316
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241 } else { |
557 | 242 tv.tv_sec = (long) (timer / 1000); |
243 tv.tv_usec = (long) ((timer % 1000) * 1000); | |
315
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244 tp = &tv; |
26
53cb81681040
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diff
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245 } |
314
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246 |
302
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247 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
557 | 248 "select timer: %M", timer); |
0
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249 |
315
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250 work_read_fd_set = master_read_fd_set; |
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251 work_write_fd_set = master_write_fd_set; |
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252 |
2777
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253 if (max_read || max_write) { |
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254 ready = select(0, &work_read_fd_set, &work_write_fd_set, NULL, tp); |
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255 |
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256 } else { |
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257 |
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258 /* |
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259 * Winsock select() requires that at least one descriptor set must be |
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260 * be non-null, and any non-null descriptor set must contain at least |
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261 * one handle to a socket. Otherwise select() returns WSAEINVAL. |
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262 */ |
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263 |
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264 ngx_msleep(timer); |
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265 |
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266 ready = 0; |
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267 } |
563 | 268 |
114
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269 if (ready == -1) { |
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270 err = ngx_socket_errno; |
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271 } else { |
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272 err = 0; |
0
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273 } |
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274 |
563 | 275 if (flags & NGX_UPDATE_TIME) { |
276 ngx_time_update(0, 0); | |
277 } | |
178
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278 |
302
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279 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
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280 "select ready %d", ready); |
245
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281 |
114
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282 if (err) { |
302
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283 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, "select() failed"); |
2780 | 284 |
285 if (err == WSAENOTSOCK) { | |
286 ngx_select_repair_fd_sets(cycle); | |
287 } | |
288 | |
114
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289 return NGX_ERROR; |
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290 } |
0
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291 |
567 | 292 if (ready == 0) { |
293 if (timer != NGX_TIMER_INFINITE) { | |
294 return NGX_OK; | |
295 } | |
296 | |
297 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
298 "select() returned no events without timeout"); | |
299 return NGX_ERROR; | |
563 | 300 } |
301 | |
302 ngx_mutex_lock(ngx_posted_events_mutex); | |
303 | |
17
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304 nready = 0; |
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305 |
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306 for (i = 0; i < nevents; i++) { |
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307 ev = event_index[i]; |
250
1903c6821958
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diff
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|
308 c = ev->data; |
0
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309 found = 0; |
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310 |
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311 if (ev->write) { |
8
708f8bb772ec
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312 if (FD_ISSET(c->fd, &work_write_fd_set)) { |
39
83fa61cd3d2f
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diff
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313 found = 1; |
302
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314 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
245
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|
315 "select write %d", c->fd); |
0
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316 } |
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317 |
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318 } else { |
8
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|
319 if (FD_ISSET(c->fd, &work_read_fd_set)) { |
39
83fa61cd3d2f
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diff
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320 found = 1; |
302
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321 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
245
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diff
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|
322 "select read %d", c->fd); |
0
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323 } |
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324 } |
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325 |
17
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13
diff
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|
326 if (found) { |
314
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327 ev->ready = 1; |
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328 |
563 | 329 queue = (ngx_event_t **) (ev->accept ? &ngx_posted_accept_events: |
330 &ngx_posted_events); | |
577 | 331 ngx_locked_post_event(ev, queue); |
314
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332 |
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333 nready++; |
17
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334 } |
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diff
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|
335 } |
13
2aba961a1d34
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diff
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|
336 |
563 | 337 ngx_mutex_unlock(ngx_posted_events_mutex); |
314
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338 |
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339 if (ready != nready) { |
2781
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340 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
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341 "select ready != events: %d:%d", ready, nready); |
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342 |
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343 ngx_select_repair_fd_sets(cycle); |
0
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344 } |
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345 |
8
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346 return NGX_OK; |
0
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347 } |
91
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diff
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|
348 |
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349 |
2780 | 350 static void |
351 ngx_select_repair_fd_sets(ngx_cycle_t *cycle) | |
352 { | |
353 int n; | |
2813
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|
354 u_int i; |
2780 | 355 socklen_t len; |
356 ngx_err_t err; | |
357 ngx_socket_t s; | |
358 | |
359 for (i = 0; i < master_read_fd_set.fd_count; i++) { | |
360 | |
361 s = master_read_fd_set.fd_array[i]; | |
362 len = sizeof(int); | |
363 | |
364 if (getsockopt(s, SOL_SOCKET, SO_TYPE, (char *) &n, &len) == -1) { | |
365 err = ngx_socket_errno; | |
366 | |
367 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
368 "invalid descriptor #%d in read fd_set", s); | |
369 | |
370 FD_CLR(s, &master_read_fd_set); | |
371 } | |
372 } | |
373 | |
374 for (i = 0; i < master_write_fd_set.fd_count; i++) { | |
375 | |
376 s = master_write_fd_set.fd_array[i]; | |
377 len = sizeof(int); | |
378 | |
379 if (getsockopt(s, SOL_SOCKET, SO_TYPE, (char *) &n, &len) == -1) { | |
380 err = ngx_socket_errno; | |
381 | |
382 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, | |
383 "invalid descriptor #%d in write fd_set", s); | |
384 | |
385 FD_CLR(s, &master_write_fd_set); | |
386 } | |
387 } | |
388 } | |
389 | |
390 | |
501 | 391 static char * |
392 ngx_select_init_conf(ngx_cycle_t *cycle, void *conf) | |
91
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393 { |
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394 ngx_event_conf_t *ecf; |
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|
395 |
114
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|
396 ecf = ngx_event_get_conf(cycle->conf_ctx, ngx_event_core_module); |
91
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diff
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|
397 |
321
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318
diff
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|
398 if (ecf->use != ngx_select_module.ctx_index) { |
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diff
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|
399 return NGX_CONF_OK; |
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diff
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400 } |
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diff
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|
401 |
91
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diff
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|
402 return NGX_CONF_OK; |
637625a2acdb
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|
403 } |