Mercurial > hg > nginx-quic
annotate src/event/modules/ngx_devpoll_module.c @ 4207:4fc91bae6f83
Better recheck of dead upstream servers.
Previously nginx used to mark backend again as live as soon as fail_timeout
passes (10s by default) since last failure. On the other hand, detecting
dead backend takes up to 60s (proxy_connect_timeout) in typical situation
"backend is down and doesn't respond to any packets". This resulted in
suboptimal behaviour in the above situation (up to 23% of requests were
directed to dead backend with default settings).
More detailed description of the problem may be found here (in Russian):
http://mailman.nginx.org/pipermail/nginx-ru/2011-August/042172.html
Fix is to only allow one request after fail_timeout passes, and
mark backend as "live" only if this request succeeds.
Note that with new code backend will not be marked "live" unless "check"
request is completed, and this may take a while in some specific workloads
(e.g. streaming). This is believed to be acceptable.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 12 Oct 2011 14:22:48 +0000 |
parents | ab353d7dc182 |
children | d620f497c50f |
rev | line source |
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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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469 | 12 #if (NGX_TEST_BUILD_DEVPOLL) |
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13 |
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14 /* Solaris declarations */ |
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15 |
1433 | 16 #define POLLREMOVE 0x0800 |
17 #define DP_POLL 0xD001 | |
18 #define DP_ISPOLLED 0xD002 | |
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19 |
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20 struct dvpoll { |
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21 struct pollfd *dp_fds; |
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22 int dp_nfds; |
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23 int dp_timeout; |
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24 }; |
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26 #endif |
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29 typedef struct { |
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30 ngx_uint_t changes; |
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31 ngx_uint_t events; |
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32 } ngx_devpoll_conf_t; |
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34 |
563 | 35 static ngx_int_t ngx_devpoll_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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36 static void ngx_devpoll_done(ngx_cycle_t *cycle); |
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37 static ngx_int_t ngx_devpoll_add_event(ngx_event_t *ev, ngx_int_t event, |
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38 ngx_uint_t flags); |
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39 static ngx_int_t ngx_devpoll_del_event(ngx_event_t *ev, ngx_int_t event, |
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40 ngx_uint_t flags); |
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41 static ngx_int_t ngx_devpoll_set_event(ngx_event_t *ev, ngx_int_t event, |
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42 ngx_uint_t flags); |
563 | 43 static ngx_int_t ngx_devpoll_process_events(ngx_cycle_t *cycle, |
44 ngx_msec_t timer, ngx_uint_t flags); | |
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46 static void *ngx_devpoll_create_conf(ngx_cycle_t *cycle); |
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47 static char *ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf); |
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48 |
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49 static int dp = -1; |
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50 static struct pollfd *change_list, *event_list; |
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51 static ngx_uint_t nchanges, max_changes, nevents; |
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53 static ngx_event_t **change_index; |
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55 |
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56 static ngx_str_t devpoll_name = ngx_string("/dev/poll"); |
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57 |
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58 static ngx_command_t ngx_devpoll_commands[] = { |
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59 |
499 | 60 { ngx_string("devpoll_changes"), |
61 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
62 ngx_conf_set_num_slot, | |
63 0, | |
64 offsetof(ngx_devpoll_conf_t, changes), | |
65 NULL }, | |
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66 |
499 | 67 { ngx_string("devpoll_events"), |
68 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
69 ngx_conf_set_num_slot, | |
70 0, | |
71 offsetof(ngx_devpoll_conf_t, events), | |
72 NULL }, | |
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73 |
499 | 74 ngx_null_command |
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75 }; |
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76 |
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77 |
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78 ngx_event_module_t ngx_devpoll_module_ctx = { |
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79 &devpoll_name, |
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80 ngx_devpoll_create_conf, /* create configuration */ |
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81 ngx_devpoll_init_conf, /* init configuration */ |
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82 |
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83 { |
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84 ngx_devpoll_add_event, /* add an event */ |
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85 ngx_devpoll_del_event, /* delete an event */ |
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86 ngx_devpoll_add_event, /* enable an event */ |
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87 ngx_devpoll_del_event, /* disable an event */ |
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88 NULL, /* add an connection */ |
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89 NULL, /* delete an connection */ |
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90 NULL, /* process the changes */ |
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91 ngx_devpoll_process_events, /* process the events */ |
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92 ngx_devpoll_init, /* init the events */ |
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93 ngx_devpoll_done, /* done the events */ |
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94 } |
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95 |
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96 }; |
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97 |
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98 ngx_module_t ngx_devpoll_module = { |
509 | 99 NGX_MODULE_V1, |
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100 &ngx_devpoll_module_ctx, /* module context */ |
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101 ngx_devpoll_commands, /* module directives */ |
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102 NGX_EVENT_MODULE, /* module type */ |
541 | 103 NULL, /* init master */ |
116
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104 NULL, /* init module */ |
541 | 105 NULL, /* init process */ |
106 NULL, /* init thread */ | |
107 NULL, /* exit thread */ | |
108 NULL, /* exit process */ | |
109 NULL, /* exit master */ | |
110 NGX_MODULE_V1_PADDING | |
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111 }; |
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112 |
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113 |
499 | 114 static ngx_int_t |
563 | 115 ngx_devpoll_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
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116 { |
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117 size_t n; |
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118 ngx_devpoll_conf_t *dpcf; |
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119 |
115
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120 dpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_devpoll_module); |
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121 |
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122 if (dp == -1) { |
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123 dp = open("/dev/poll", O_RDWR); |
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124 |
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nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
125 if (dp == -1) { |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
126 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
127 "open(/dev/poll) failed"); |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
128 return NGX_ERROR; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
129 } |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
130 } |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
131 |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
132 if (max_changes < dpcf->changes) { |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
133 if (nchanges) { |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
134 n = nchanges * sizeof(struct pollfd); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
135 if (write(dp, change_list, n) != (ssize_t) n) { |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
136 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
137 "write(/dev/poll) failed"); |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
138 return NGX_ERROR; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
139 } |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
140 |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
141 nchanges = 0; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
142 } |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
143 |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
144 if (change_list) { |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
145 ngx_free(change_list); |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
146 } |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
147 |
501 | 148 change_list = ngx_alloc(sizeof(struct pollfd) * dpcf->changes, |
149 cycle->log); | |
150 if (change_list == NULL) { | |
151 return NGX_ERROR; | |
152 } | |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
153 |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
154 if (change_index) { |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
155 ngx_free(change_index); |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
156 } |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
157 |
501 | 158 change_index = ngx_alloc(sizeof(ngx_event_t *) * dpcf->changes, |
159 cycle->log); | |
160 if (change_index == NULL) { | |
161 return NGX_ERROR; | |
162 } | |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
163 } |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
164 |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
165 max_changes = dpcf->changes; |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
166 |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
167 if (nevents < dpcf->events) { |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
168 if (event_list) { |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
169 ngx_free(event_list); |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
170 } |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
171 |
501 | 172 event_list = ngx_alloc(sizeof(struct pollfd) * dpcf->events, |
173 cycle->log); | |
174 if (event_list == NULL) { | |
175 return NGX_ERROR; | |
176 } | |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
177 } |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
178 |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
179 nevents = dpcf->events; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
180 |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
181 ngx_io = ngx_os_io; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
182 |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
183 ngx_event_actions = ngx_devpoll_module_ctx.actions; |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
184 |
543 | 185 ngx_event_flags = NGX_USE_LEVEL_EVENT|NGX_USE_FD_EVENT; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
186 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
187 return NGX_OK; |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
189 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
190 |
499 | 191 static void |
192 ngx_devpoll_done(ngx_cycle_t *cycle) | |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
193 { |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
194 if (close(dp) == -1) { |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
195 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
196 "close(/dev/poll) failed"); |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
197 } |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
198 |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
199 dp = -1; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
200 |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
201 ngx_free(change_list); |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
202 ngx_free(event_list); |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
203 ngx_free(change_index); |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
204 |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
205 change_list = NULL; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
206 event_list = NULL; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
207 change_index = NULL; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
208 max_changes = 0; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
209 nchanges = 0; |
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
210 nevents = 0; |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
211 } |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
212 |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
213 |
499 | 214 static ngx_int_t |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1141
diff
changeset
|
215 ngx_devpoll_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
216 { |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
217 #if (NGX_DEBUG) |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
218 ngx_connection_t *c; |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
219 #endif |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
220 |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
221 #if (NGX_READ_EVENT != POLLIN) |
452 | 222 event = (event == NGX_READ_EVENT) ? POLLIN : POLLOUT; |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
223 #endif |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
224 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
225 #if (NGX_DEBUG) |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
226 c = ev->data; |
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
227 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:
1141
diff
changeset
|
228 "devpoll add event: fd:%d ev:%04Xi", c->fd, event); |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
229 #endif |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
230 |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
231 ev->active = 1; |
452 | 232 |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
233 return ngx_devpoll_set_event(ev, event, 0); |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
234 } |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
235 |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
236 |
499 | 237 static ngx_int_t |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1141
diff
changeset
|
238 ngx_devpoll_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
239 { |
109
a9bc21d63fe4
nginx-0.0.1-2003-07-02-18:41:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
240 ngx_event_t *e; |
a9bc21d63fe4
nginx-0.0.1-2003-07-02-18:41:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
241 ngx_connection_t *c; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
242 |
110
152567c11325
nginx-0.0.1-2003-07-02-22:51:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
109
diff
changeset
|
243 c = ev->data; |
152567c11325
nginx-0.0.1-2003-07-02-22:51:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
109
diff
changeset
|
244 |
452 | 245 #if (NGX_READ_EVENT != POLLIN) |
246 event = (event == NGX_READ_EVENT) ? POLLIN : POLLOUT; | |
247 #endif | |
248 | |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
249 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:
1141
diff
changeset
|
250 "devpoll del event: fd:%d ev:%04Xi", c->fd, event); |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
251 |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
252 if (ngx_devpoll_set_event(ev, POLLREMOVE, flags) == NGX_ERROR) { |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
253 return NGX_ERROR; |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
254 } |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
255 |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
256 ev->active = 0; |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
257 |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
258 if (flags & NGX_CLOSE_EVENT) { |
1431
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
259 e = (event == POLLIN) ? c->write : c->read; |
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
260 |
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
261 if (e) { |
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
262 e->active = 0; |
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
263 } |
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
264 |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
265 return NGX_OK; |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
266 } |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
267 |
1432 | 268 /* restore the pair event if it exists */ |
109
a9bc21d63fe4
nginx-0.0.1-2003-07-02-18:41:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
269 |
452 | 270 if (event == POLLIN) { |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
271 e = c->write; |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
272 event = POLLOUT; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
273 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
274 } else { |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
275 e = c->read; |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
276 event = POLLIN; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
277 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
278 |
452 | 279 if (e && e->active) { |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
280 return ngx_devpoll_set_event(e, event, 0); |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
281 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
282 |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
283 return NGX_OK; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
284 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
285 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
286 |
499 | 287 static ngx_int_t |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1141
diff
changeset
|
288 ngx_devpoll_set_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
289 { |
194
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
179
diff
changeset
|
290 size_t n; |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
291 ngx_connection_t *c; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
292 |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
293 c = ev->data; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
294 |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
295 ngx_log_debug3(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:
1141
diff
changeset
|
296 "devpoll fd:%d ev:%04Xi fl:%04Xi", c->fd, event, flags); |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
297 |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
298 if (nchanges >= max_changes) { |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
299 ngx_log_error(NGX_LOG_WARN, ev->log, 0, |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
300 "/dev/pool change list is filled up"); |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
301 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
302 n = nchanges * sizeof(struct pollfd); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
303 if (write(dp, change_list, n) != (ssize_t) n) { |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
304 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
305 "write(/dev/poll) failed"); |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
306 return NGX_ERROR; |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
307 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
308 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
309 nchanges = 0; |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
310 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
311 |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
312 change_list[nchanges].fd = c->fd; |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1141
diff
changeset
|
313 change_list[nchanges].events = (short) event; |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
314 change_list[nchanges].revents = 0; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
315 |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
316 change_index[nchanges] = ev; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
317 ev->index = nchanges; |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
318 |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
319 nchanges++; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
320 |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
321 if (flags & NGX_CLOSE_EVENT) { |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
322 n = nchanges * sizeof(struct pollfd); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
323 if (write(dp, change_list, n) != (ssize_t) n) { |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
324 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
325 "write(/dev/poll) failed"); |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
326 return NGX_ERROR; |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
327 } |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
328 |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
329 nchanges = 0; |
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
330 } |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
331 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
332 return NGX_OK; |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
333 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
334 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
335 |
499 | 336 ngx_int_t |
563 | 337 ngx_devpoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
338 ngx_uint_t flags) | |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
339 { |
1433 | 340 int events, revents, rc; |
557 | 341 size_t n; |
1433 | 342 ngx_fd_t fd; |
557 | 343 ngx_err_t err; |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
344 ngx_int_t i; |
563 | 345 ngx_uint_t level; |
346 ngx_event_t *rev, *wev, **queue; | |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
347 ngx_connection_t *c; |
1433 | 348 struct pollfd pfd; |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
349 struct dvpoll dvp; |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
350 |
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
351 /* NGX_TIMER_INFINITE == INFTIM */ |
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
352 |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
353 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
557 | 354 "devpoll timer: %M", timer); |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
355 |
47
d81326c3b21b
nginx-0.0.1-2003-01-15-10:02:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
40
diff
changeset
|
356 if (nchanges) { |
d81326c3b21b
nginx-0.0.1-2003-01-15-10:02:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
40
diff
changeset
|
357 n = nchanges * sizeof(struct pollfd); |
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
358 if (write(dp, change_list, n) != (ssize_t) n) { |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
359 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
47
d81326c3b21b
nginx-0.0.1-2003-01-15-10:02:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
40
diff
changeset
|
360 "write(/dev/poll) failed"); |
d81326c3b21b
nginx-0.0.1-2003-01-15-10:02:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
40
diff
changeset
|
361 return NGX_ERROR; |
d81326c3b21b
nginx-0.0.1-2003-01-15-10:02:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
40
diff
changeset
|
362 } |
567 | 363 |
364 nchanges = 0; | |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
365 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
366 |
40
d5d4f3bba6f0
nginx-0.0.1-2002-12-26-10:24:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
39
diff
changeset
|
367 dvp.dp_fds = event_list; |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
1141
diff
changeset
|
368 dvp.dp_nfds = (int) nevents; |
40
d5d4f3bba6f0
nginx-0.0.1-2002-12-26-10:24:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
39
diff
changeset
|
369 dvp.dp_timeout = timer; |
d5d4f3bba6f0
nginx-0.0.1-2002-12-26-10:24:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
39
diff
changeset
|
370 events = ioctl(dp, DP_POLL, &dvp); |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
371 |
3043 | 372 err = (events == -1) ? ngx_errno : 0; |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
373 |
3473
0299cf5856fc
do not update time in the timer signal handler,
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parents:
3043
diff
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|
374 if (flags & NGX_UPDATE_TIME || ngx_event_timer_alarm) { |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
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3474
diff
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375 ngx_time_update(); |
563 | 376 } |
178
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
167
diff
changeset
|
377 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
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378 if (err) { |
563 | 379 if (err == NGX_EINTR) { |
380 | |
381 if (ngx_event_timer_alarm) { | |
382 ngx_event_timer_alarm = 0; | |
383 return NGX_OK; | |
384 } | |
577 | 385 |
563 | 386 level = NGX_LOG_INFO; |
577 | 387 |
388 } else { | |
563 | 389 level = NGX_LOG_ALERT; |
390 } | |
391 | |
392 ngx_log_error(level, cycle->log, err, "ioctl(DP_POLL) failed"); | |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
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393 return NGX_ERROR; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
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394 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
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parents:
245
diff
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395 |
567 | 396 if (events == 0) { |
397 if (timer != NGX_TIMER_INFINITE) { | |
398 return NGX_OK; | |
399 } | |
114
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
110
diff
changeset
|
400 |
567 | 401 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
402 "ioctl(DP_POLL) returned no events without timeout"); | |
403 return NGX_ERROR; | |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
404 } |
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
405 |
563 | 406 ngx_mutex_lock(ngx_posted_events_mutex); |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
407 |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
408 for (i = 0; i < events; i++) { |
1433 | 409 |
410 fd = event_list[i].fd; | |
411 revents = event_list[i].revents; | |
412 | |
413 c = ngx_cycle->files[fd]; | |
414 | |
415 if (c == NULL || c->fd == -1) { | |
416 | |
417 pfd.fd = fd; | |
418 pfd.events = 0; | |
419 pfd.revents = 0; | |
420 | |
421 rc = ioctl(dp, DP_ISPOLLED, &pfd); | |
422 | |
423 switch (rc) { | |
424 | |
425 case -1: | |
426 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
427 "ioctl(DP_ISPOLLED) failed for socket %d, event", | |
428 fd, revents); | |
429 break; | |
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
430 |
1433 | 431 case 0: |
432 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
433 "phantom event %04Xd for closed and removed socket %d", | |
434 revents, fd); | |
435 break; | |
436 | |
437 default: | |
438 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
439 "unexpected event %04Xd for closed and removed socket %d, ", | |
440 "ioctl(DP_ISPOLLED) returned rc:%d, fd:%d, event %04Xd", | |
441 revents, fd, rc, pfd.fd, pfd.revents); | |
442 | |
443 pfd.fd = fd; | |
444 pfd.events = POLLREMOVE; | |
445 pfd.revents = 0; | |
446 | |
447 if (write(dp, &pfd, sizeof(struct pollfd)) | |
448 != (ssize_t) sizeof(struct pollfd)) | |
449 { | |
450 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
451 "write(/dev/poll) for %d failed, fd"); | |
452 } | |
453 | |
454 if (close(fd) == -1) { | |
455 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
456 "close(%d) failed", fd); | |
457 } | |
458 | |
459 break; | |
473 | 460 } |
461 | |
462 continue; | |
463 } | |
464 | |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
465 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 466 "devpoll: fd:%d, ev:%04Xd, rev:%04Xd", |
1433 | 467 fd, event_list[i].events, revents); |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
468 |
483 | 469 if (revents & (POLLERR|POLLHUP|POLLNVAL)) { |
1141
2b16d3959c2b
fix building without --with-debug on Solaris
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1128
diff
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470 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 471 "ioctl(DP_POLL) error fd:%d ev:%04Xd rev:%04Xd", |
1433 | 472 fd, event_list[i].events, revents); |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
473 } |
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
474 |
483 | 475 if (revents & ~(POLLIN|POLLOUT|POLLERR|POLLHUP|POLLNVAL)) { |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
476 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
477 "strange ioctl(DP_POLL) events " |
461 | 478 "fd:%d ev:%04Xd rev:%04Xd", |
1433 | 479 fd, event_list[i].events, revents); |
483 | 480 } |
481 | |
482 if ((revents & (POLLERR|POLLHUP|POLLNVAL)) | |
483 && (revents & (POLLIN|POLLOUT)) == 0) | |
484 { | |
485 /* | |
486 * if the error events were returned without POLLIN or POLLOUT, | |
487 * then add these flags to handle the events at least in one | |
577 | 488 * active handler |
483 | 489 */ |
490 | |
491 revents |= POLLIN|POLLOUT; | |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
492 } |
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
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|
493 |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
494 rev = c->read; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
495 |
483 | 496 if ((revents & POLLIN) && rev->active) { |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
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497 |
563 | 498 if ((flags & NGX_POST_THREAD_EVENTS) && !rev->accept) { |
499 rev->posted_ready = 1; | |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
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|
500 |
563 | 501 } else { |
502 rev->ready = 1; | |
503 } | |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
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504 |
563 | 505 if (flags & NGX_POST_EVENTS) { |
506 queue = (ngx_event_t **) (rev->accept ? | |
507 &ngx_posted_accept_events : &ngx_posted_events); | |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
508 |
563 | 509 ngx_locked_post_event(rev, queue); |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
510 |
563 | 511 } else { |
512 rev->handler(rev); | |
513 } | |
514 } | |
515 | |
516 wev = c->write; | |
517 | |
518 if ((revents & POLLOUT) && wev->active) { | |
323
ba876b26b76d
nginx-0.0.3-2004-04-21-22:54:33 import
Igor Sysoev <igor@sysoev.ru>
parents:
318
diff
changeset
|
519 |
563 | 520 if (flags & NGX_POST_THREAD_EVENTS) { |
521 wev->posted_ready = 1; | |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
522 |
563 | 523 } else { |
524 wev->ready = 1; | |
525 } | |
526 | |
527 if (flags & NGX_POST_EVENTS) { | |
528 ngx_locked_post_event(wev, &ngx_posted_events); | |
529 | |
530 } else { | |
531 wev->handler(wev); | |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
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|
532 } |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
533 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
534 } |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
535 |
563 | 536 ngx_mutex_unlock(ngx_posted_events_mutex); |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
537 |
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
538 return NGX_OK; |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
539 } |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
540 |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
541 |
499 | 542 static void * |
543 ngx_devpoll_create_conf(ngx_cycle_t *cycle) | |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
544 { |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
545 ngx_devpoll_conf_t *dpcf; |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
546 |
501 | 547 dpcf = ngx_palloc(cycle->pool, sizeof(ngx_devpoll_conf_t)); |
548 if (dpcf == NULL) { | |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
1433
diff
changeset
|
549 return NULL; |
501 | 550 } |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
551 |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
552 dpcf->changes = NGX_CONF_UNSET; |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
553 dpcf->events = NGX_CONF_UNSET; |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
554 |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
555 return dpcf; |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
556 } |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
557 |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
558 |
499 | 559 static char * |
560 ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf) | |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
561 { |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
562 ngx_devpoll_conf_t *dpcf = conf; |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
563 |
663 | 564 ngx_conf_init_uint_value(dpcf->changes, 32); |
565 ngx_conf_init_uint_value(dpcf->events, 32); | |
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
566 |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
567 return NGX_CONF_OK; |
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
568 } |