Mercurial > hg > nginx
annotate src/event/modules/ngx_devpoll_module.c @ 5170:6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Stale write event may happen if read and write events was reported both,
and processing of the read event closed descriptor.
In practice this might result in "sendfilev() failed (134: ..." or
"writev() failed (134: ..." errors when switching to next upstream server.
See report here:
http://mailman.nginx.org/pipermail/nginx/2013-April/038421.html
| author | Valentin Bartenev <vbart@nginx.com> |
|---|---|
| date | Fri, 12 Apr 2013 15:02:33 +0000 |
| parents | d620f497c50f |
| children | a4d21534cbf4 |
| 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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7 |
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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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11 |
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12 |
| 469 | 13 #if (NGX_TEST_BUILD_DEVPOLL) |
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15 /* Solaris declarations */ |
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16 |
| 1433 | 17 #define POLLREMOVE 0x0800 |
| 18 #define DP_POLL 0xD001 | |
| 19 #define DP_ISPOLLED 0xD002 | |
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21 struct dvpoll { |
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22 struct pollfd *dp_fds; |
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23 int dp_nfds; |
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24 int dp_timeout; |
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25 }; |
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26 |
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27 #endif |
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30 typedef struct { |
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31 ngx_uint_t changes; |
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32 ngx_uint_t events; |
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33 } ngx_devpoll_conf_t; |
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34 |
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| 563 | 36 static ngx_int_t ngx_devpoll_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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37 static void ngx_devpoll_done(ngx_cycle_t *cycle); |
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38 static ngx_int_t ngx_devpoll_add_event(ngx_event_t *ev, ngx_int_t event, |
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39 ngx_uint_t flags); |
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40 static ngx_int_t ngx_devpoll_del_event(ngx_event_t *ev, ngx_int_t event, |
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41 ngx_uint_t flags); |
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42 static ngx_int_t ngx_devpoll_set_event(ngx_event_t *ev, ngx_int_t event, |
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43 ngx_uint_t flags); |
| 563 | 44 static ngx_int_t ngx_devpoll_process_events(ngx_cycle_t *cycle, |
| 45 ngx_msec_t timer, ngx_uint_t flags); | |
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46 |
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47 static void *ngx_devpoll_create_conf(ngx_cycle_t *cycle); |
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48 static char *ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf); |
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49 |
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50 static int dp = -1; |
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51 static struct pollfd *change_list, *event_list; |
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52 static ngx_uint_t nchanges, max_changes, nevents; |
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53 |
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54 static ngx_event_t **change_index; |
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55 |
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56 |
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57 static ngx_str_t devpoll_name = ngx_string("/dev/poll"); |
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58 |
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59 static ngx_command_t ngx_devpoll_commands[] = { |
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60 |
| 499 | 61 { ngx_string("devpoll_changes"), |
| 62 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
| 63 ngx_conf_set_num_slot, | |
| 64 0, | |
| 65 offsetof(ngx_devpoll_conf_t, changes), | |
| 66 NULL }, | |
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67 |
| 499 | 68 { ngx_string("devpoll_events"), |
| 69 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
| 70 ngx_conf_set_num_slot, | |
| 71 0, | |
| 72 offsetof(ngx_devpoll_conf_t, events), | |
| 73 NULL }, | |
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74 |
| 499 | 75 ngx_null_command |
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76 }; |
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77 |
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78 |
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79 ngx_event_module_t ngx_devpoll_module_ctx = { |
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80 &devpoll_name, |
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81 ngx_devpoll_create_conf, /* create configuration */ |
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82 ngx_devpoll_init_conf, /* init configuration */ |
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83 |
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84 { |
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85 ngx_devpoll_add_event, /* add an event */ |
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86 ngx_devpoll_del_event, /* delete an event */ |
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87 ngx_devpoll_add_event, /* enable an event */ |
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88 ngx_devpoll_del_event, /* disable an event */ |
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89 NULL, /* add an connection */ |
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90 NULL, /* delete an connection */ |
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91 NULL, /* process the changes */ |
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92 ngx_devpoll_process_events, /* process the events */ |
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93 ngx_devpoll_init, /* init the events */ |
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94 ngx_devpoll_done, /* done the events */ |
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95 } |
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96 |
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97 }; |
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98 |
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99 ngx_module_t ngx_devpoll_module = { |
| 509 | 100 NGX_MODULE_V1, |
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101 &ngx_devpoll_module_ctx, /* module context */ |
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102 ngx_devpoll_commands, /* module directives */ |
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103 NGX_EVENT_MODULE, /* module type */ |
| 541 | 104 NULL, /* init master */ |
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105 NULL, /* init module */ |
| 541 | 106 NULL, /* init process */ |
| 107 NULL, /* init thread */ | |
| 108 NULL, /* exit thread */ | |
| 109 NULL, /* exit process */ | |
| 110 NULL, /* exit master */ | |
| 111 NGX_MODULE_V1_PADDING | |
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112 }; |
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113 |
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114 |
| 499 | 115 static ngx_int_t |
| 563 | 116 ngx_devpoll_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
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117 { |
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118 size_t n; |
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119 ngx_devpoll_conf_t *dpcf; |
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120 |
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121 dpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_devpoll_module); |
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122 |
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Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
123 if (dp == -1) { |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
124 dp = open("/dev/poll", O_RDWR); |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
125 |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
126 if (dp == -1) { |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
127 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
|
128 "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
|
129 return NGX_ERROR; |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
130 } |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
131 } |
|
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
132 |
|
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
133 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
|
134 if (nchanges) { |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
135 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
|
136 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
|
137 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
|
138 "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
|
139 return NGX_ERROR; |
|
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 |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
142 nchanges = 0; |
|
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 |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
145 if (change_list) { |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
146 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
|
147 } |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
148 |
| 501 | 149 change_list = ngx_alloc(sizeof(struct pollfd) * dpcf->changes, |
| 150 cycle->log); | |
| 151 if (change_list == NULL) { | |
| 152 return NGX_ERROR; | |
| 153 } | |
|
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
154 |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
155 if (change_index) { |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
156 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
|
157 } |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
158 |
| 501 | 159 change_index = ngx_alloc(sizeof(ngx_event_t *) * dpcf->changes, |
| 160 cycle->log); | |
| 161 if (change_index == NULL) { | |
| 162 return NGX_ERROR; | |
| 163 } | |
|
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
164 } |
|
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
165 |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
166 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
|
167 |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
168 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
|
169 if (event_list) { |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
170 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
|
171 } |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
172 |
| 501 | 173 event_list = ngx_alloc(sizeof(struct pollfd) * dpcf->events, |
| 174 cycle->log); | |
| 175 if (event_list == NULL) { | |
| 176 return NGX_ERROR; | |
| 177 } | |
|
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
178 } |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
179 |
|
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
180 nevents = dpcf->events; |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
181 |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
182 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
|
183 |
|
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
184 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
|
185 |
| 543 | 186 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
|
187 |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 return NGX_OK; |
|
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 |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
191 |
| 499 | 192 static void |
| 193 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
|
194 { |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
195 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
|
196 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
|
197 "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
|
198 } |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
199 |
|
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
200 dp = -1; |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
201 |
|
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
202 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
|
203 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
|
204 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
|
205 |
|
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
206 change_list = NULL; |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
207 event_list = NULL; |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
208 change_index = NULL; |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
209 max_changes = 0; |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
210 nchanges = 0; |
|
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
211 nevents = 0; |
|
92
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 |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
214 |
| 499 | 215 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
|
216 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
|
217 { |
|
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
218 #if (NGX_DEBUG) |
|
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
219 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
|
220 #endif |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
221 |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
222 #if (NGX_READ_EVENT != POLLIN) |
| 452 | 223 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
|
224 #endif |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
225 |
|
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
226 #if (NGX_DEBUG) |
|
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
227 c = ev->data; |
|
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
228 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
|
229 "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
|
230 #endif |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
231 |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
232 ev->active = 1; |
| 452 | 233 |
|
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
234 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
|
235 } |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
236 |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
237 |
| 499 | 238 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
|
239 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
|
240 { |
|
109
a9bc21d63fe4
nginx-0.0.1-2003-07-02-18:41:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
96
diff
changeset
|
241 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
|
242 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
|
243 |
|
110
152567c11325
nginx-0.0.1-2003-07-02-22:51:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
109
diff
changeset
|
244 c = ev->data; |
|
152567c11325
nginx-0.0.1-2003-07-02-22:51:41 import
Igor Sysoev <igor@sysoev.ru>
parents:
109
diff
changeset
|
245 |
| 452 | 246 #if (NGX_READ_EVENT != POLLIN) |
| 247 event = (event == NGX_READ_EVENT) ? POLLIN : POLLOUT; | |
| 248 #endif | |
| 249 | |
|
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
250 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
|
251 "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
|
252 |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
253 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
|
254 return NGX_ERROR; |
|
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 |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
257 ev->active = 0; |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
258 |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
259 if (flags & NGX_CLOSE_EVENT) { |
|
1431
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
260 e = (event == POLLIN) ? c->write : c->read; |
|
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
261 |
|
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
262 if (e) { |
|
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
263 e->active = 0; |
|
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
264 } |
|
ec3833f74cc2
disable pair event on POLLREMOVE
Igor Sysoev <igor@sysoev.ru>
parents:
1354
diff
changeset
|
265 |
|
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
266 return NGX_OK; |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
267 } |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
268 |
| 1432 | 269 /* 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
|
270 |
| 452 | 271 if (event == POLLIN) { |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
272 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
|
273 event = POLLOUT; |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
274 |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
275 } else { |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
276 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
|
277 event = POLLIN; |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
278 } |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
279 |
| 452 | 280 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
|
281 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
|
282 } |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
283 |
|
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
284 return NGX_OK; |
|
36
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 |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
287 |
| 499 | 288 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
|
289 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
|
290 { |
|
194
2357fa41738a
nginx-0.0.1-2003-11-21-09:30:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
179
diff
changeset
|
291 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
|
292 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
|
293 |
|
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
294 c = ev->data; |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
295 |
|
245
e6c005b66b3a
nginx-0.0.1-2004-01-30-00:45:01 import
Igor Sysoev <igor@sysoev.ru>
parents:
243
diff
changeset
|
296 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
|
297 "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
|
298 |
|
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
299 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
|
300 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
|
301 "/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
|
302 |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
303 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
|
304 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
|
305 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
|
306 "write(/dev/poll) failed"); |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
307 return NGX_ERROR; |
|
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 |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
310 nchanges = 0; |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
311 } |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
312 |
|
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
313 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
|
314 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
|
315 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
|
316 |
|
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
317 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
|
318 ev->index = nchanges; |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
319 |
|
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
320 nchanges++; |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
321 |
|
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
322 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
|
323 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
|
324 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
|
325 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
|
326 "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
|
327 return NGX_ERROR; |
|
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 |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
330 nchanges = 0; |
|
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
331 } |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
332 |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
333 return NGX_OK; |
|
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 |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
336 |
| 499 | 337 ngx_int_t |
| 563 | 338 ngx_devpoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, |
| 339 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
|
340 { |
| 1433 | 341 int events, revents, rc; |
| 557 | 342 size_t n; |
| 1433 | 343 ngx_fd_t fd; |
| 557 | 344 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
|
345 ngx_int_t i; |
|
5170
6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
346 ngx_uint_t level, instance; |
| 563 | 347 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
|
348 ngx_connection_t *c; |
| 1433 | 349 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
|
350 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
|
351 |
|
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
352 /* 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
|
353 |
|
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
354 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
| 557 | 355 "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
|
356 |
|
47
d81326c3b21b
nginx-0.0.1-2003-01-15-10:02:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
40
diff
changeset
|
357 if (nchanges) { |
|
d81326c3b21b
nginx-0.0.1-2003-01-15-10:02:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
40
diff
changeset
|
358 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
|
359 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
|
360 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
|
361 "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
|
362 return NGX_ERROR; |
|
d81326c3b21b
nginx-0.0.1-2003-01-15-10:02:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
40
diff
changeset
|
363 } |
| 567 | 364 |
| 365 nchanges = 0; | |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
366 } |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
367 |
|
40
d5d4f3bba6f0
nginx-0.0.1-2002-12-26-10:24:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
39
diff
changeset
|
368 dvp.dp_fds = event_list; |
|
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
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parents:
1141
diff
changeset
|
369 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
|
370 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
|
371 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
|
372 |
| 3043 | 373 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
|
374 |
|
3473
0299cf5856fc
do not update time in the timer signal handler,
Igor Sysoev <igor@sysoev.ru>
parents:
3043
diff
changeset
|
375 if (flags & NGX_UPDATE_TIME || ngx_event_timer_alarm) { |
|
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
376 ngx_time_update(); |
| 563 | 377 } |
|
178
a8ff48d26cca
nginx-0.0.1-2003-11-11-00:09:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
167
diff
changeset
|
378 |
|
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
379 if (err) { |
| 563 | 380 if (err == NGX_EINTR) { |
| 381 | |
| 382 if (ngx_event_timer_alarm) { | |
| 383 ngx_event_timer_alarm = 0; | |
| 384 return NGX_OK; | |
| 385 } | |
| 577 | 386 |
| 563 | 387 level = NGX_LOG_INFO; |
| 577 | 388 |
| 389 } else { | |
| 563 | 390 level = NGX_LOG_ALERT; |
| 391 } | |
| 392 | |
| 393 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
changeset
|
394 return NGX_ERROR; |
|
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
395 } |
|
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
245
diff
changeset
|
396 |
| 567 | 397 if (events == 0) { |
| 398 if (timer != NGX_TIMER_INFINITE) { | |
| 399 return NGX_OK; | |
| 400 } | |
|
114
ac69ab96328d
nginx-0.0.1-2003-07-07-10:11:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
110
diff
changeset
|
401 |
| 567 | 402 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
| 403 "ioctl(DP_POLL) returned no events without timeout"); | |
| 404 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
|
405 } |
|
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
406 |
| 563 | 407 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
|
408 |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
409 for (i = 0; i < events; i++) { |
| 1433 | 410 |
| 411 fd = event_list[i].fd; | |
| 412 revents = event_list[i].revents; | |
| 413 | |
| 414 c = ngx_cycle->files[fd]; | |
| 415 | |
| 416 if (c == NULL || c->fd == -1) { | |
| 417 | |
| 418 pfd.fd = fd; | |
| 419 pfd.events = 0; | |
| 420 pfd.revents = 0; | |
| 421 | |
| 422 rc = ioctl(dp, DP_ISPOLLED, &pfd); | |
| 423 | |
| 424 switch (rc) { | |
| 425 | |
| 426 case -1: | |
| 427 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 428 "ioctl(DP_ISPOLLED) failed for socket %d, event", | |
| 429 fd, revents); | |
| 430 break; | |
|
115
be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
114
diff
changeset
|
431 |
| 1433 | 432 case 0: |
| 433 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 434 "phantom event %04Xd for closed and removed socket %d", | |
| 435 revents, fd); | |
| 436 break; | |
| 437 | |
| 438 default: | |
| 439 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, | |
| 440 "unexpected event %04Xd for closed and removed socket %d, ", | |
| 441 "ioctl(DP_ISPOLLED) returned rc:%d, fd:%d, event %04Xd", | |
| 442 revents, fd, rc, pfd.fd, pfd.revents); | |
| 443 | |
| 444 pfd.fd = fd; | |
| 445 pfd.events = POLLREMOVE; | |
| 446 pfd.revents = 0; | |
| 447 | |
| 448 if (write(dp, &pfd, sizeof(struct pollfd)) | |
| 449 != (ssize_t) sizeof(struct pollfd)) | |
| 450 { | |
| 451 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 452 "write(/dev/poll) for %d failed, fd"); | |
| 453 } | |
| 454 | |
| 455 if (close(fd) == -1) { | |
| 456 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | |
| 457 "close(%d) failed", fd); | |
| 458 } | |
| 459 | |
| 460 break; | |
| 473 | 461 } |
| 462 | |
| 463 continue; | |
| 464 } | |
| 465 | |
|
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
466 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
| 461 | 467 "devpoll: fd:%d, ev:%04Xd, rev:%04Xd", |
| 1433 | 468 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
|
469 |
| 483 | 470 if (revents & (POLLERR|POLLHUP|POLLNVAL)) { |
|
1141
2b16d3959c2b
fix building without --with-debug on Solaris
Igor Sysoev <igor@sysoev.ru>
parents:
1128
diff
changeset
|
471 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
| 461 | 472 "ioctl(DP_POLL) error fd:%d ev:%04Xd rev:%04Xd", |
| 1433 | 473 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
|
474 } |
|
39
83fa61cd3d2f
nginx-0.0.1-2002-12-24-20:30:59 import
Igor Sysoev <igor@sysoev.ru>
parents:
36
diff
changeset
|
475 |
| 483 | 476 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
|
477 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
|
478 "strange ioctl(DP_POLL) events " |
| 461 | 479 "fd:%d ev:%04Xd rev:%04Xd", |
| 1433 | 480 fd, event_list[i].events, revents); |
| 483 | 481 } |
| 482 | |
| 483 if ((revents & (POLLERR|POLLHUP|POLLNVAL)) | |
| 484 && (revents & (POLLIN|POLLOUT)) == 0) | |
| 485 { | |
| 486 /* | |
| 487 * if the error events were returned without POLLIN or POLLOUT, | |
| 488 * then add these flags to handle the events at least in one | |
| 577 | 489 * active handler |
| 483 | 490 */ |
| 491 | |
| 492 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
|
493 } |
|
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
494 |
|
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
495 rev = c->read; |
|
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
496 |
| 483 | 497 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
|
498 |
| 563 | 499 if ((flags & NGX_POST_THREAD_EVENTS) && !rev->accept) { |
| 500 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
changeset
|
501 |
| 563 | 502 } else { |
| 503 rev->ready = 1; | |
| 504 } | |
|
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
505 |
| 563 | 506 if (flags & NGX_POST_EVENTS) { |
| 507 queue = (ngx_event_t **) (rev->accept ? | |
| 508 &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
|
509 |
| 563 | 510 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
|
511 |
| 563 | 512 } else { |
|
5170
6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
513 instance = rev->instance; |
|
6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
514 |
| 563 | 515 rev->handler(rev); |
|
5170
6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
516 |
|
6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
517 if (c->fd == -1 || wev->instance != instance) { |
|
6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
518 continue; |
|
6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Valentin Bartenev <vbart@nginx.com>
parents:
4412
diff
changeset
|
519 } |
| 563 | 520 } |
| 521 } | |
| 522 | |
| 523 wev = c->write; | |
| 524 | |
| 525 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
|
526 |
| 563 | 527 if (flags & NGX_POST_THREAD_EVENTS) { |
| 528 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
|
529 |
| 563 | 530 } else { |
| 531 wev->ready = 1; | |
| 532 } | |
| 533 | |
| 534 if (flags & NGX_POST_EVENTS) { | |
| 535 ngx_locked_post_event(wev, &ngx_posted_events); | |
| 536 | |
| 537 } else { | |
| 538 wev->handler(wev); | |
|
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
305
diff
changeset
|
539 } |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
540 } |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
541 } |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
542 |
| 563 | 543 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
|
544 |
|
36
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
545 return NGX_OK; |
|
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
546 } |
|
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
547 |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
548 |
| 499 | 549 static void * |
| 550 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
|
551 { |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
552 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
|
553 |
| 501 | 554 dpcf = ngx_palloc(cycle->pool, sizeof(ngx_devpoll_conf_t)); |
| 555 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
|
556 return NULL; |
| 501 | 557 } |
|
92
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
558 |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
559 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
|
560 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
|
561 |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
562 return dpcf; |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
563 } |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
564 |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
565 |
| 499 | 566 static char * |
| 567 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
|
568 { |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
569 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
|
570 |
| 663 | 571 ngx_conf_init_uint_value(dpcf->changes, 32); |
| 572 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
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573 |
|
19cc647ecd91
nginx-0.0.1-2003-05-20-19:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
69
diff
changeset
|
574 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
|
575 } |