1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
73 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
74 | # define EV_USE_REALTIME 0 |
79 | # endif |
75 | # endif |
80 | # endif |
76 | # endif |
81 | |
77 | |
|
|
78 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
79 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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|
81 | # endif |
85 | # else |
82 | # else |
|
|
83 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
84 | # define EV_USE_NANOSLEEP 0 |
|
|
85 | # endif |
|
|
86 | |
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|
87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
88 | # ifndef EV_USE_SELECT |
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|
89 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
90 | # endif |
|
|
91 | # else |
|
|
92 | # undef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT 0 |
88 | # endif |
94 | # endif |
89 | |
95 | |
|
|
96 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
97 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
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|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
99 | # endif |
96 | # endif |
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|
97 | |
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98 | # ifndef EV_USE_POLL |
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|
99 | # if HAVE_POLL && HAVE_POLL_H |
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|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
100 | # else |
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|
101 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
103 | # endif |
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|
104 | # endif |
103 | # endif |
105 | |
104 | |
106 | # ifndef EV_USE_EPOLL |
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|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
109 | # else |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
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|
111 | # endif |
108 | # endif |
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109 | # else |
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110 | # undef EV_USE_EPOLL |
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111 | # define EV_USE_EPOLL 0 |
112 | # endif |
112 | # endif |
113 | |
113 | |
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|
114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # ifndef EV_USE_KQUEUE |
115 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
116 | # define EV_USE_KQUEUE 1 |
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117 | # else |
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118 | # define EV_USE_KQUEUE 0 |
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119 | # endif |
117 | # endif |
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118 | # else |
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119 | # undef EV_USE_KQUEUE |
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120 | # define EV_USE_KQUEUE 0 |
120 | # endif |
121 | # endif |
121 | |
122 | |
122 | # ifndef EV_USE_PORT |
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|
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
124 | # define EV_USE_PORT 1 |
124 | # ifndef EV_USE_PORT |
125 | # else |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
126 | # endif |
|
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127 | # else |
|
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128 | # undef EV_USE_PORT |
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129 | # define EV_USE_PORT 0 |
128 | # endif |
130 | # endif |
129 | |
131 | |
130 | # ifndef EV_USE_INOTIFY |
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|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # define EV_USE_INOTIFY 1 |
133 | # ifndef EV_USE_INOTIFY |
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
135 | # endif |
135 | # endif |
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136 | # else |
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137 | # undef EV_USE_INOTIFY |
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138 | # define EV_USE_INOTIFY 0 |
136 | # endif |
139 | # endif |
137 | |
140 | |
138 | # ifndef EV_USE_SIGNALFD |
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|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
140 | # define EV_USE_SIGNALFD 1 |
142 | # ifndef EV_USE_SIGNALFD |
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
143 | # endif |
144 | # endif |
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145 | # else |
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146 | # undef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD 0 |
144 | # endif |
148 | # endif |
145 | |
149 | |
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150 | # if HAVE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
151 | # ifndef EV_USE_EVENTFD |
147 | # if HAVE_EVENTFD |
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|
148 | # define EV_USE_EVENTFD 1 |
152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
149 | # else |
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150 | # define EV_USE_EVENTFD 0 |
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|
151 | # endif |
153 | # endif |
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154 | # else |
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155 | # undef EV_USE_EVENTFD |
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156 | # define EV_USE_EVENTFD 0 |
152 | # endif |
157 | # endif |
153 | |
158 | |
154 | #endif |
159 | #endif |
155 | |
160 | |
156 | #include <math.h> |
161 | #include <math.h> |
157 | #include <stdlib.h> |
162 | #include <stdlib.h> |
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|
163 | #include <string.h> |
158 | #include <fcntl.h> |
164 | #include <fcntl.h> |
159 | #include <stddef.h> |
165 | #include <stddef.h> |
160 | |
166 | |
161 | #include <stdio.h> |
167 | #include <stdio.h> |
162 | |
168 | |
163 | #include <assert.h> |
169 | #include <assert.h> |
164 | #include <errno.h> |
170 | #include <errno.h> |
165 | #include <sys/types.h> |
171 | #include <sys/types.h> |
166 | #include <time.h> |
172 | #include <time.h> |
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|
173 | #include <limits.h> |
167 | |
174 | |
168 | #include <signal.h> |
175 | #include <signal.h> |
169 | |
176 | |
170 | #ifdef EV_H |
177 | #ifdef EV_H |
171 | # include EV_H |
178 | # include EV_H |
172 | #else |
179 | #else |
173 | # include "ev.h" |
180 | # include "ev.h" |
174 | #endif |
181 | #endif |
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182 | |
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183 | EV_CPP(extern "C" {) |
175 | |
184 | |
176 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
177 | # include <sys/time.h> |
186 | # include <sys/time.h> |
178 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
179 | # include <unistd.h> |
188 | # include <unistd.h> |
… | |
… | |
182 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
183 | # include <windows.h> |
192 | # include <windows.h> |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # endif |
195 | # endif |
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|
196 | # undef EV_AVOID_STDIO |
187 | #endif |
197 | #endif |
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198 | |
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199 | /* OS X, in its infinite idiocy, actually HARDCODES |
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200 | * a limit of 1024 into their select. Where people have brains, |
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201 | * OS X engineers apparently have a vacuum. Or maybe they were |
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202 | * ordered to have a vacuum, or they do anything for money. |
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203 | * This might help. Or not. |
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204 | */ |
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205 | #define _DARWIN_UNLIMITED_SELECT 1 |
188 | |
206 | |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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208 | |
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209 | /* try to deduce the maximum number of signals on this platform */ |
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210 | #if defined (EV_NSIG) |
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211 | /* use what's provided */ |
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212 | #elif defined (NSIG) |
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213 | # define EV_NSIG (NSIG) |
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214 | #elif defined(_NSIG) |
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215 | # define EV_NSIG (_NSIG) |
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216 | #elif defined (SIGMAX) |
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217 | # define EV_NSIG (SIGMAX+1) |
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218 | #elif defined (SIG_MAX) |
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219 | # define EV_NSIG (SIG_MAX+1) |
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220 | #elif defined (_SIG_MAX) |
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221 | # define EV_NSIG (_SIG_MAX+1) |
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222 | #elif defined (MAXSIG) |
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223 | # define EV_NSIG (MAXSIG+1) |
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224 | #elif defined (MAX_SIG) |
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225 | # define EV_NSIG (MAX_SIG+1) |
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226 | #elif defined (SIGARRAYSIZE) |
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227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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228 | #elif defined (_sys_nsig) |
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229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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230 | #else |
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231 | # error "unable to find value for NSIG, please report" |
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232 | /* to make it compile regardless, just remove the above line, */ |
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233 | /* but consider reporting it, too! :) */ |
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234 | # define EV_NSIG 65 |
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235 | #endif |
190 | |
236 | |
191 | #ifndef EV_USE_CLOCK_SYSCALL |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
192 | # if __linux && __GLIBC__ >= 2 |
238 | # if __linux && __GLIBC__ >= 2 |
193 | # define EV_USE_CLOCK_SYSCALL 1 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
194 | # else |
240 | # else |
195 | # define EV_USE_CLOCK_SYSCALL 0 |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
196 | # endif |
242 | # endif |
197 | #endif |
243 | #endif |
198 | |
244 | |
199 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
200 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
201 | # define EV_USE_MONOTONIC 1 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
202 | # else |
248 | # else |
203 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
204 | # endif |
250 | # endif |
205 | #endif |
251 | #endif |
206 | |
252 | |
… | |
… | |
208 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
209 | #endif |
255 | #endif |
210 | |
256 | |
211 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
212 | # if _POSIX_C_SOURCE >= 199309L |
258 | # if _POSIX_C_SOURCE >= 199309L |
213 | # define EV_USE_NANOSLEEP 1 |
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
214 | # else |
260 | # else |
215 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
216 | # endif |
262 | # endif |
217 | #endif |
263 | #endif |
218 | |
264 | |
219 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
220 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
221 | #endif |
267 | #endif |
222 | |
268 | |
223 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
224 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
225 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
226 | # else |
272 | # else |
227 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
228 | # endif |
274 | # endif |
229 | #endif |
275 | #endif |
230 | |
276 | |
231 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
232 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
233 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
234 | # else |
280 | # else |
235 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
236 | # endif |
282 | # endif |
237 | #endif |
283 | #endif |
238 | |
284 | |
… | |
… | |
244 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
245 | #endif |
291 | #endif |
246 | |
292 | |
247 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
248 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
249 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
250 | # else |
296 | # else |
251 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
252 | # endif |
298 | # endif |
253 | #endif |
299 | #endif |
254 | |
300 | |
255 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
256 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
257 | # define EV_PID_HASHSIZE 1 |
|
|
258 | # else |
|
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259 | # define EV_PID_HASHSIZE 16 |
|
|
260 | # endif |
|
|
261 | #endif |
303 | #endif |
262 | |
304 | |
263 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
264 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
265 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
266 | # else |
|
|
267 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
268 | # endif |
|
|
269 | #endif |
307 | #endif |
270 | |
308 | |
271 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
272 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
273 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
274 | # else |
312 | # else |
275 | # define EV_USE_EVENTFD 0 |
313 | # define EV_USE_EVENTFD 0 |
276 | # endif |
314 | # endif |
277 | #endif |
315 | #endif |
278 | |
316 | |
279 | #ifndef EV_USE_SIGNALFD |
317 | #ifndef EV_USE_SIGNALFD |
280 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
281 | # define EV_USE_SIGNALFD 1 |
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
282 | # else |
320 | # else |
283 | # define EV_USE_SIGNALFD 0 |
321 | # define EV_USE_SIGNALFD 0 |
284 | # endif |
322 | # endif |
285 | #endif |
323 | #endif |
286 | |
324 | |
… | |
… | |
289 | # define EV_USE_4HEAP 1 |
327 | # define EV_USE_4HEAP 1 |
290 | # define EV_HEAP_CACHE_AT 1 |
328 | # define EV_HEAP_CACHE_AT 1 |
291 | #endif |
329 | #endif |
292 | |
330 | |
293 | #ifndef EV_VERIFY |
331 | #ifndef EV_VERIFY |
294 | # define EV_VERIFY !EV_MINIMAL |
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
295 | #endif |
333 | #endif |
296 | |
334 | |
297 | #ifndef EV_USE_4HEAP |
335 | #ifndef EV_USE_4HEAP |
298 | # define EV_USE_4HEAP !EV_MINIMAL |
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
299 | #endif |
337 | #endif |
300 | |
338 | |
301 | #ifndef EV_HEAP_CACHE_AT |
339 | #ifndef EV_HEAP_CACHE_AT |
302 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
303 | #endif |
341 | #endif |
304 | |
342 | |
305 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
306 | /* which makes programs even slower. might work on other unices, too. */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
307 | #if EV_USE_CLOCK_SYSCALL |
345 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
316 | # endif |
354 | # endif |
317 | #endif |
355 | #endif |
318 | |
356 | |
319 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
320 | |
358 | |
|
|
359 | #ifdef _AIX |
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360 | /* AIX has a completely broken poll.h header */ |
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361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
|
|
364 | |
321 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
322 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
323 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
324 | #endif |
368 | #endif |
325 | |
369 | |
… | |
… | |
332 | # undef EV_USE_INOTIFY |
376 | # undef EV_USE_INOTIFY |
333 | # define EV_USE_INOTIFY 0 |
377 | # define EV_USE_INOTIFY 0 |
334 | #endif |
378 | #endif |
335 | |
379 | |
336 | #if !EV_USE_NANOSLEEP |
380 | #if !EV_USE_NANOSLEEP |
337 | # ifndef _WIN32 |
381 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
382 | # if !defined(_WIN32) && !defined(__hpux) |
338 | # include <sys/select.h> |
383 | # include <sys/select.h> |
339 | # endif |
384 | # endif |
340 | #endif |
385 | #endif |
341 | |
386 | |
342 | #if EV_USE_INOTIFY |
387 | #if EV_USE_INOTIFY |
343 | # include <sys/utsname.h> |
|
|
344 | # include <sys/statfs.h> |
388 | # include <sys/statfs.h> |
345 | # include <sys/inotify.h> |
389 | # include <sys/inotify.h> |
346 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
390 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
347 | # ifndef IN_DONT_FOLLOW |
391 | # ifndef IN_DONT_FOLLOW |
348 | # undef EV_USE_INOTIFY |
392 | # undef EV_USE_INOTIFY |
… | |
… | |
359 | # include <stdint.h> |
403 | # include <stdint.h> |
360 | # ifndef EFD_NONBLOCK |
404 | # ifndef EFD_NONBLOCK |
361 | # define EFD_NONBLOCK O_NONBLOCK |
405 | # define EFD_NONBLOCK O_NONBLOCK |
362 | # endif |
406 | # endif |
363 | # ifndef EFD_CLOEXEC |
407 | # ifndef EFD_CLOEXEC |
|
|
408 | # ifdef O_CLOEXEC |
364 | # define EFD_CLOEXEC O_CLOEXEC |
409 | # define EFD_CLOEXEC O_CLOEXEC |
|
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410 | # else |
|
|
411 | # define EFD_CLOEXEC 02000000 |
|
|
412 | # endif |
365 | # endif |
413 | # endif |
366 | # ifdef __cplusplus |
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
367 | extern "C" { |
415 | #endif |
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416 | |
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417 | #if EV_USE_SIGNALFD |
|
|
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
419 | # include <stdint.h> |
|
|
420 | # ifndef SFD_NONBLOCK |
|
|
421 | # define SFD_NONBLOCK O_NONBLOCK |
368 | # endif |
422 | # endif |
369 | int eventfd (unsigned int initval, int flags); |
423 | # ifndef SFD_CLOEXEC |
370 | # ifdef __cplusplus |
424 | # ifdef O_CLOEXEC |
371 | } |
425 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
426 | # else |
|
|
427 | # define SFD_CLOEXEC 02000000 |
|
|
428 | # endif |
372 | # endif |
429 | # endif |
373 | #endif |
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
374 | |
431 | |
375 | #if EV_USE_SIGNALFD |
432 | struct signalfd_siginfo |
376 | # include <sys/signalfd.h> |
433 | { |
|
|
434 | uint32_t ssi_signo; |
|
|
435 | char pad[128 - sizeof (uint32_t)]; |
|
|
436 | }; |
377 | #endif |
437 | #endif |
378 | |
438 | |
379 | /**/ |
439 | /**/ |
380 | |
440 | |
381 | #if EV_VERIFY >= 3 |
441 | #if EV_VERIFY >= 3 |
382 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
442 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
383 | #else |
443 | #else |
384 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | # define EV_FREQUENT_CHECK do { } while (0) |
385 | #endif |
445 | #endif |
386 | |
446 | |
387 | /* |
447 | /* |
… | |
… | |
394 | */ |
454 | */ |
395 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
396 | |
456 | |
397 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
398 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
399 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
459 | |
|
|
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
400 | |
462 | |
401 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
402 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
403 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
404 | #else |
466 | #else |
… | |
… | |
411 | |
473 | |
412 | #define expect_false(expr) expect ((expr) != 0, 0) |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
413 | #define expect_true(expr) expect ((expr) != 0, 1) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
414 | #define inline_size static inline |
476 | #define inline_size static inline |
415 | |
477 | |
416 | #if EV_MINIMAL |
478 | #if EV_FEATURE_CODE |
|
|
479 | # define inline_speed static inline |
|
|
480 | #else |
417 | # define inline_speed static noinline |
481 | # define inline_speed static noinline |
418 | #else |
|
|
419 | # define inline_speed static inline |
|
|
420 | #endif |
482 | #endif |
421 | |
483 | |
422 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
423 | |
485 | |
424 | #if EV_MINPRI == EV_MAXPRI |
486 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
437 | #define ev_active(w) ((W)(w))->active |
499 | #define ev_active(w) ((W)(w))->active |
438 | #define ev_at(w) ((WT)(w))->at |
500 | #define ev_at(w) ((WT)(w))->at |
439 | |
501 | |
440 | #if EV_USE_REALTIME |
502 | #if EV_USE_REALTIME |
441 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
503 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
442 | /* giving it a reasonably high chance of working on typical architetcures */ |
504 | /* giving it a reasonably high chance of working on typical architectures */ |
443 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
505 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
444 | #endif |
506 | #endif |
445 | |
507 | |
446 | #if EV_USE_MONOTONIC |
508 | #if EV_USE_MONOTONIC |
447 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
448 | #endif |
510 | #endif |
449 | |
511 | |
|
|
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
514 | #endif |
|
|
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_CLOSE_FD |
|
|
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
520 | #endif |
|
|
521 | |
450 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
451 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
452 | #endif |
524 | #endif |
453 | |
525 | |
454 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
|
|
527 | |
|
|
528 | #ifdef __linux |
|
|
529 | # include <sys/utsname.h> |
|
|
530 | #endif |
|
|
531 | |
|
|
532 | static unsigned int noinline |
|
|
533 | ev_linux_version (void) |
|
|
534 | { |
|
|
535 | #ifdef __linux |
|
|
536 | unsigned int v = 0; |
|
|
537 | struct utsname buf; |
|
|
538 | int i; |
|
|
539 | char *p = buf.release; |
|
|
540 | |
|
|
541 | if (uname (&buf)) |
|
|
542 | return 0; |
|
|
543 | |
|
|
544 | for (i = 3+1; --i; ) |
|
|
545 | { |
|
|
546 | unsigned int c = 0; |
|
|
547 | |
|
|
548 | for (;;) |
|
|
549 | { |
|
|
550 | if (*p >= '0' && *p <= '9') |
|
|
551 | c = c * 10 + *p++ - '0'; |
|
|
552 | else |
|
|
553 | { |
|
|
554 | p += *p == '.'; |
|
|
555 | break; |
|
|
556 | } |
|
|
557 | } |
|
|
558 | |
|
|
559 | v = (v << 8) | c; |
|
|
560 | } |
|
|
561 | |
|
|
562 | return v; |
|
|
563 | #else |
|
|
564 | return 0; |
|
|
565 | #endif |
|
|
566 | } |
|
|
567 | |
|
|
568 | /*****************************************************************************/ |
|
|
569 | |
|
|
570 | #if EV_AVOID_STDIO |
|
|
571 | static void noinline |
|
|
572 | ev_printerr (const char *msg) |
|
|
573 | { |
|
|
574 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
575 | } |
|
|
576 | #endif |
455 | |
577 | |
456 | static void (*syserr_cb)(const char *msg); |
578 | static void (*syserr_cb)(const char *msg); |
457 | |
579 | |
458 | void |
580 | void |
459 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
581 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
469 | |
591 | |
470 | if (syserr_cb) |
592 | if (syserr_cb) |
471 | syserr_cb (msg); |
593 | syserr_cb (msg); |
472 | else |
594 | else |
473 | { |
595 | { |
|
|
596 | #if EV_AVOID_STDIO |
|
|
597 | ev_printerr (msg); |
|
|
598 | ev_printerr (": "); |
|
|
599 | ev_printerr (strerror (errno)); |
|
|
600 | ev_printerr ("\n"); |
|
|
601 | #else |
474 | perror (msg); |
602 | perror (msg); |
|
|
603 | #endif |
475 | abort (); |
604 | abort (); |
476 | } |
605 | } |
477 | } |
606 | } |
478 | |
607 | |
479 | static void * |
608 | static void * |
480 | ev_realloc_emul (void *ptr, long size) |
609 | ev_realloc_emul (void *ptr, long size) |
481 | { |
610 | { |
|
|
611 | #if __GLIBC__ |
|
|
612 | return realloc (ptr, size); |
|
|
613 | #else |
482 | /* some systems, notably openbsd and darwin, fail to properly |
614 | /* some systems, notably openbsd and darwin, fail to properly |
483 | * implement realloc (x, 0) (as required by both ansi c-98 and |
615 | * implement realloc (x, 0) (as required by both ansi c-89 and |
484 | * the single unix specification, so work around them here. |
616 | * the single unix specification, so work around them here. |
485 | */ |
617 | */ |
486 | |
618 | |
487 | if (size) |
619 | if (size) |
488 | return realloc (ptr, size); |
620 | return realloc (ptr, size); |
489 | |
621 | |
490 | free (ptr); |
622 | free (ptr); |
491 | return 0; |
623 | return 0; |
|
|
624 | #endif |
492 | } |
625 | } |
493 | |
626 | |
494 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
627 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
495 | |
628 | |
496 | void |
629 | void |
… | |
… | |
504 | { |
637 | { |
505 | ptr = alloc (ptr, size); |
638 | ptr = alloc (ptr, size); |
506 | |
639 | |
507 | if (!ptr && size) |
640 | if (!ptr && size) |
508 | { |
641 | { |
|
|
642 | #if EV_AVOID_STDIO |
|
|
643 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
644 | #else |
509 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
645 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
646 | #endif |
510 | abort (); |
647 | abort (); |
511 | } |
648 | } |
512 | |
649 | |
513 | return ptr; |
650 | return ptr; |
514 | } |
651 | } |
… | |
… | |
530 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
667 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
531 | unsigned char unused; |
668 | unsigned char unused; |
532 | #if EV_USE_EPOLL |
669 | #if EV_USE_EPOLL |
533 | unsigned int egen; /* generation counter to counter epoll bugs */ |
670 | unsigned int egen; /* generation counter to counter epoll bugs */ |
534 | #endif |
671 | #endif |
535 | #if EV_SELECT_IS_WINSOCKET |
672 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
536 | SOCKET handle; |
673 | SOCKET handle; |
|
|
674 | #endif |
|
|
675 | #if EV_USE_IOCP |
|
|
676 | OVERLAPPED or, ow; |
537 | #endif |
677 | #endif |
538 | } ANFD; |
678 | } ANFD; |
539 | |
679 | |
540 | /* stores the pending event set for a given watcher */ |
680 | /* stores the pending event set for a given watcher */ |
541 | typedef struct |
681 | typedef struct |
… | |
… | |
596 | |
736 | |
597 | static int ev_default_loop_ptr; |
737 | static int ev_default_loop_ptr; |
598 | |
738 | |
599 | #endif |
739 | #endif |
600 | |
740 | |
601 | #if EV_MINIMAL < 2 |
741 | #if EV_FEATURE_API |
602 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
742 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
603 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
743 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
604 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
744 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
605 | #else |
745 | #else |
606 | # define EV_RELEASE_CB (void)0 |
746 | # define EV_RELEASE_CB (void)0 |
607 | # define EV_ACQUIRE_CB (void)0 |
747 | # define EV_ACQUIRE_CB (void)0 |
608 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
748 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
609 | #endif |
749 | #endif |
610 | |
750 | |
611 | #define EVUNLOOP_RECURSE 0x80 |
751 | #define EVBREAK_RECURSE 0x80 |
612 | |
752 | |
613 | /*****************************************************************************/ |
753 | /*****************************************************************************/ |
614 | |
754 | |
615 | #ifndef EV_HAVE_EV_TIME |
755 | #ifndef EV_HAVE_EV_TIME |
616 | ev_tstamp |
756 | ev_tstamp |
… | |
… | |
660 | if (delay > 0.) |
800 | if (delay > 0.) |
661 | { |
801 | { |
662 | #if EV_USE_NANOSLEEP |
802 | #if EV_USE_NANOSLEEP |
663 | struct timespec ts; |
803 | struct timespec ts; |
664 | |
804 | |
665 | ts.tv_sec = (time_t)delay; |
805 | EV_TS_SET (ts, delay); |
666 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
667 | |
|
|
668 | nanosleep (&ts, 0); |
806 | nanosleep (&ts, 0); |
669 | #elif defined(_WIN32) |
807 | #elif defined(_WIN32) |
670 | Sleep ((unsigned long)(delay * 1e3)); |
808 | Sleep ((unsigned long)(delay * 1e3)); |
671 | #else |
809 | #else |
672 | struct timeval tv; |
810 | struct timeval tv; |
673 | |
811 | |
674 | tv.tv_sec = (time_t)delay; |
|
|
675 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
676 | |
|
|
677 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
812 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
678 | /* something not guaranteed by newer posix versions, but guaranteed */ |
813 | /* something not guaranteed by newer posix versions, but guaranteed */ |
679 | /* by older ones */ |
814 | /* by older ones */ |
|
|
815 | EV_TV_SET (tv, delay); |
680 | select (0, 0, 0, 0, &tv); |
816 | select (0, 0, 0, 0, &tv); |
681 | #endif |
817 | #endif |
682 | } |
818 | } |
683 | } |
819 | } |
684 | |
820 | |
|
|
821 | inline_speed int |
|
|
822 | ev_timeout_to_ms (ev_tstamp timeout) |
|
|
823 | { |
|
|
824 | int ms = timeout * 1000. + .999999; |
|
|
825 | |
|
|
826 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
|
|
827 | } |
|
|
828 | |
685 | /*****************************************************************************/ |
829 | /*****************************************************************************/ |
686 | |
830 | |
687 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
831 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
688 | |
832 | |
689 | /* find a suitable new size for the given array, */ |
833 | /* find a suitable new size for the given array, */ |
690 | /* hopefully by rounding to a ncie-to-malloc size */ |
834 | /* hopefully by rounding to a nice-to-malloc size */ |
691 | inline_size int |
835 | inline_size int |
692 | array_nextsize (int elem, int cur, int cnt) |
836 | array_nextsize (int elem, int cur, int cnt) |
693 | { |
837 | { |
694 | int ncur = cur + 1; |
838 | int ncur = cur + 1; |
695 | |
839 | |
… | |
… | |
791 | } |
935 | } |
792 | |
936 | |
793 | /*****************************************************************************/ |
937 | /*****************************************************************************/ |
794 | |
938 | |
795 | inline_speed void |
939 | inline_speed void |
796 | fd_event_nc (EV_P_ int fd, int revents) |
940 | fd_event_nocheck (EV_P_ int fd, int revents) |
797 | { |
941 | { |
798 | ANFD *anfd = anfds + fd; |
942 | ANFD *anfd = anfds + fd; |
799 | ev_io *w; |
943 | ev_io *w; |
800 | |
944 | |
801 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
945 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
813 | fd_event (EV_P_ int fd, int revents) |
957 | fd_event (EV_P_ int fd, int revents) |
814 | { |
958 | { |
815 | ANFD *anfd = anfds + fd; |
959 | ANFD *anfd = anfds + fd; |
816 | |
960 | |
817 | if (expect_true (!anfd->reify)) |
961 | if (expect_true (!anfd->reify)) |
818 | fd_event_nc (EV_A_ fd, revents); |
962 | fd_event_nocheck (EV_A_ fd, revents); |
819 | } |
963 | } |
820 | |
964 | |
821 | void |
965 | void |
822 | ev_feed_fd_event (EV_P_ int fd, int revents) |
966 | ev_feed_fd_event (EV_P_ int fd, int revents) |
823 | { |
967 | { |
824 | if (fd >= 0 && fd < anfdmax) |
968 | if (fd >= 0 && fd < anfdmax) |
825 | fd_event_nc (EV_A_ fd, revents); |
969 | fd_event_nocheck (EV_A_ fd, revents); |
826 | } |
970 | } |
827 | |
971 | |
828 | /* make sure the external fd watch events are in-sync */ |
972 | /* make sure the external fd watch events are in-sync */ |
829 | /* with the kernel/libev internal state */ |
973 | /* with the kernel/libev internal state */ |
830 | inline_size void |
974 | inline_size void |
… | |
… | |
836 | { |
980 | { |
837 | int fd = fdchanges [i]; |
981 | int fd = fdchanges [i]; |
838 | ANFD *anfd = anfds + fd; |
982 | ANFD *anfd = anfds + fd; |
839 | ev_io *w; |
983 | ev_io *w; |
840 | |
984 | |
841 | unsigned char events = 0; |
985 | unsigned char o_events = anfd->events; |
|
|
986 | unsigned char o_reify = anfd->reify; |
842 | |
987 | |
843 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
988 | anfd->reify = 0; |
844 | events |= (unsigned char)w->events; |
|
|
845 | |
989 | |
846 | #if EV_SELECT_IS_WINSOCKET |
990 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
847 | if (events) |
991 | if (o_reify & EV__IOFDSET) |
848 | { |
992 | { |
849 | unsigned long arg; |
993 | unsigned long arg; |
850 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
851 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
994 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
852 | #else |
|
|
853 | anfd->handle = _get_osfhandle (fd); |
|
|
854 | #endif |
|
|
855 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
995 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
996 | printf ("oi %d %x\n", fd, anfd->handle);//D |
856 | } |
997 | } |
857 | #endif |
998 | #endif |
858 | |
999 | |
|
|
1000 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
859 | { |
1001 | { |
860 | unsigned char o_events = anfd->events; |
|
|
861 | unsigned char o_reify = anfd->reify; |
|
|
862 | |
|
|
863 | anfd->reify = 0; |
|
|
864 | anfd->events = events; |
1002 | anfd->events = 0; |
865 | |
1003 | |
866 | if (o_events != events || o_reify & EV__IOFDSET) |
1004 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1005 | anfd->events |= (unsigned char)w->events; |
|
|
1006 | |
|
|
1007 | if (o_events != anfd->events) |
|
|
1008 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1009 | } |
|
|
1010 | |
|
|
1011 | if (o_reify & EV__IOFDSET) |
867 | backend_modify (EV_A_ fd, o_events, events); |
1012 | backend_modify (EV_A_ fd, o_events, anfd->events); |
868 | } |
|
|
869 | } |
1013 | } |
870 | |
1014 | |
871 | fdchangecnt = 0; |
1015 | fdchangecnt = 0; |
872 | } |
1016 | } |
873 | |
1017 | |
… | |
… | |
897 | ev_io_stop (EV_A_ w); |
1041 | ev_io_stop (EV_A_ w); |
898 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1042 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
899 | } |
1043 | } |
900 | } |
1044 | } |
901 | |
1045 | |
902 | /* check whether the given fd is atcually valid, for error recovery */ |
1046 | /* check whether the given fd is actually valid, for error recovery */ |
903 | inline_size int |
1047 | inline_size int |
904 | fd_valid (int fd) |
1048 | fd_valid (int fd) |
905 | { |
1049 | { |
906 | #ifdef _WIN32 |
1050 | #ifdef _WIN32 |
907 | return _get_osfhandle (fd) != -1; |
1051 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
908 | #else |
1052 | #else |
909 | return fcntl (fd, F_GETFD) != -1; |
1053 | return fcntl (fd, F_GETFD) != -1; |
910 | #endif |
1054 | #endif |
911 | } |
1055 | } |
912 | |
1056 | |
… | |
… | |
930 | |
1074 | |
931 | for (fd = anfdmax; fd--; ) |
1075 | for (fd = anfdmax; fd--; ) |
932 | if (anfds [fd].events) |
1076 | if (anfds [fd].events) |
933 | { |
1077 | { |
934 | fd_kill (EV_A_ fd); |
1078 | fd_kill (EV_A_ fd); |
935 | return; |
1079 | break; |
936 | } |
1080 | } |
937 | } |
1081 | } |
938 | |
1082 | |
939 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1083 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
940 | static void noinline |
1084 | static void noinline |
… | |
… | |
949 | anfds [fd].emask = 0; |
1093 | anfds [fd].emask = 0; |
950 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1094 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
951 | } |
1095 | } |
952 | } |
1096 | } |
953 | |
1097 | |
|
|
1098 | /* used to prepare libev internal fd's */ |
|
|
1099 | /* this is not fork-safe */ |
|
|
1100 | inline_speed void |
|
|
1101 | fd_intern (int fd) |
|
|
1102 | { |
|
|
1103 | #ifdef _WIN32 |
|
|
1104 | unsigned long arg = 1; |
|
|
1105 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1106 | #else |
|
|
1107 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1108 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1109 | #endif |
|
|
1110 | } |
|
|
1111 | |
954 | /*****************************************************************************/ |
1112 | /*****************************************************************************/ |
955 | |
1113 | |
956 | /* |
1114 | /* |
957 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1115 | * the heap functions want a real array index. array index 0 is guaranteed to not |
958 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1116 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
959 | * the branching factor of the d-tree. |
1117 | * the branching factor of the d-tree. |
960 | */ |
1118 | */ |
961 | |
1119 | |
962 | /* |
1120 | /* |
… | |
… | |
1030 | |
1188 | |
1031 | for (;;) |
1189 | for (;;) |
1032 | { |
1190 | { |
1033 | int c = k << 1; |
1191 | int c = k << 1; |
1034 | |
1192 | |
1035 | if (c > N + HEAP0 - 1) |
1193 | if (c >= N + HEAP0) |
1036 | break; |
1194 | break; |
1037 | |
1195 | |
1038 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1196 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1039 | ? 1 : 0; |
1197 | ? 1 : 0; |
1040 | |
1198 | |
… | |
… | |
1076 | |
1234 | |
1077 | /* move an element suitably so it is in a correct place */ |
1235 | /* move an element suitably so it is in a correct place */ |
1078 | inline_size void |
1236 | inline_size void |
1079 | adjustheap (ANHE *heap, int N, int k) |
1237 | adjustheap (ANHE *heap, int N, int k) |
1080 | { |
1238 | { |
1081 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1239 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1082 | upheap (heap, k); |
1240 | upheap (heap, k); |
1083 | else |
1241 | else |
1084 | downheap (heap, N, k); |
1242 | downheap (heap, N, k); |
1085 | } |
1243 | } |
1086 | |
1244 | |
… | |
… | |
1099 | /*****************************************************************************/ |
1257 | /*****************************************************************************/ |
1100 | |
1258 | |
1101 | /* associate signal watchers to a signal signal */ |
1259 | /* associate signal watchers to a signal signal */ |
1102 | typedef struct |
1260 | typedef struct |
1103 | { |
1261 | { |
|
|
1262 | EV_ATOMIC_T pending; |
|
|
1263 | #if EV_MULTIPLICITY |
|
|
1264 | EV_P; |
|
|
1265 | #endif |
1104 | WL head; |
1266 | WL head; |
1105 | EV_ATOMIC_T gotsig; |
|
|
1106 | } ANSIG; |
1267 | } ANSIG; |
1107 | |
1268 | |
1108 | static ANSIG *signals; |
1269 | static ANSIG signals [EV_NSIG - 1]; |
1109 | static int signalmax; |
|
|
1110 | |
|
|
1111 | static EV_ATOMIC_T gotsig; |
|
|
1112 | |
1270 | |
1113 | /*****************************************************************************/ |
1271 | /*****************************************************************************/ |
1114 | |
1272 | |
1115 | /* used to prepare libev internal fd's */ |
1273 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1116 | /* this is not fork-safe */ |
|
|
1117 | inline_speed void |
|
|
1118 | fd_intern (int fd) |
|
|
1119 | { |
|
|
1120 | #ifdef _WIN32 |
|
|
1121 | unsigned long arg = 1; |
|
|
1122 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1123 | #else |
|
|
1124 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1125 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1126 | #endif |
|
|
1127 | } |
|
|
1128 | |
1274 | |
1129 | static void noinline |
1275 | static void noinline |
1130 | evpipe_init (EV_P) |
1276 | evpipe_init (EV_P) |
1131 | { |
1277 | { |
1132 | if (!ev_is_active (&pipe_w)) |
1278 | if (!ev_is_active (&pipe_w)) |
1133 | { |
1279 | { |
1134 | #if EV_USE_EVENTFD |
1280 | # if EV_USE_EVENTFD |
1135 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1281 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1136 | if (evfd < 0 && errno == EINVAL) |
1282 | if (evfd < 0 && errno == EINVAL) |
1137 | evfd = eventfd (0, 0); |
1283 | evfd = eventfd (0, 0); |
1138 | |
1284 | |
1139 | if (evfd >= 0) |
1285 | if (evfd >= 0) |
… | |
… | |
1141 | evpipe [0] = -1; |
1287 | evpipe [0] = -1; |
1142 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1288 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1143 | ev_io_set (&pipe_w, evfd, EV_READ); |
1289 | ev_io_set (&pipe_w, evfd, EV_READ); |
1144 | } |
1290 | } |
1145 | else |
1291 | else |
1146 | #endif |
1292 | # endif |
1147 | { |
1293 | { |
1148 | while (pipe (evpipe)) |
1294 | while (pipe (evpipe)) |
1149 | ev_syserr ("(libev) error creating signal/async pipe"); |
1295 | ev_syserr ("(libev) error creating signal/async pipe"); |
1150 | |
1296 | |
1151 | fd_intern (evpipe [0]); |
1297 | fd_intern (evpipe [0]); |
… | |
… | |
1162 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1308 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1163 | { |
1309 | { |
1164 | if (!*flag) |
1310 | if (!*flag) |
1165 | { |
1311 | { |
1166 | int old_errno = errno; /* save errno because write might clobber it */ |
1312 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1313 | char dummy; |
1167 | |
1314 | |
1168 | *flag = 1; |
1315 | *flag = 1; |
1169 | |
1316 | |
1170 | #if EV_USE_EVENTFD |
1317 | #if EV_USE_EVENTFD |
1171 | if (evfd >= 0) |
1318 | if (evfd >= 0) |
… | |
… | |
1173 | uint64_t counter = 1; |
1320 | uint64_t counter = 1; |
1174 | write (evfd, &counter, sizeof (uint64_t)); |
1321 | write (evfd, &counter, sizeof (uint64_t)); |
1175 | } |
1322 | } |
1176 | else |
1323 | else |
1177 | #endif |
1324 | #endif |
|
|
1325 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1326 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1327 | /* so when you think this write should be a send instead, please find out */ |
|
|
1328 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1329 | /* tell me. thank you. */ |
1178 | write (evpipe [1], &old_errno, 1); |
1330 | write (evpipe [1], &dummy, 1); |
1179 | |
1331 | |
1180 | errno = old_errno; |
1332 | errno = old_errno; |
1181 | } |
1333 | } |
1182 | } |
1334 | } |
1183 | |
1335 | |
1184 | /* called whenever the libev signal pipe */ |
1336 | /* called whenever the libev signal pipe */ |
1185 | /* got some events (signal, async) */ |
1337 | /* got some events (signal, async) */ |
1186 | static void |
1338 | static void |
1187 | pipecb (EV_P_ ev_io *iow, int revents) |
1339 | pipecb (EV_P_ ev_io *iow, int revents) |
1188 | { |
1340 | { |
|
|
1341 | int i; |
|
|
1342 | |
1189 | #if EV_USE_EVENTFD |
1343 | #if EV_USE_EVENTFD |
1190 | if (evfd >= 0) |
1344 | if (evfd >= 0) |
1191 | { |
1345 | { |
1192 | uint64_t counter; |
1346 | uint64_t counter; |
1193 | read (evfd, &counter, sizeof (uint64_t)); |
1347 | read (evfd, &counter, sizeof (uint64_t)); |
1194 | } |
1348 | } |
1195 | else |
1349 | else |
1196 | #endif |
1350 | #endif |
1197 | { |
1351 | { |
1198 | char dummy; |
1352 | char dummy; |
|
|
1353 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1199 | read (evpipe [0], &dummy, 1); |
1354 | read (evpipe [0], &dummy, 1); |
1200 | } |
1355 | } |
1201 | |
1356 | |
1202 | if (gotsig && ev_is_default_loop (EV_A)) |
1357 | #if EV_SIGNAL_ENABLE |
|
|
1358 | if (sig_pending) |
1203 | { |
1359 | { |
1204 | int signum; |
1360 | sig_pending = 0; |
1205 | gotsig = 0; |
|
|
1206 | |
1361 | |
1207 | for (signum = signalmax; signum--; ) |
1362 | for (i = EV_NSIG - 1; i--; ) |
1208 | if (signals [signum].gotsig) |
1363 | if (expect_false (signals [i].pending)) |
1209 | ev_feed_signal_event (EV_A_ signum + 1); |
1364 | ev_feed_signal_event (EV_A_ i + 1); |
1210 | } |
1365 | } |
|
|
1366 | #endif |
1211 | |
1367 | |
1212 | #if EV_ASYNC_ENABLE |
1368 | #if EV_ASYNC_ENABLE |
1213 | if (gotasync) |
1369 | if (async_pending) |
1214 | { |
1370 | { |
1215 | int i; |
1371 | async_pending = 0; |
1216 | gotasync = 0; |
|
|
1217 | |
1372 | |
1218 | for (i = asynccnt; i--; ) |
1373 | for (i = asynccnt; i--; ) |
1219 | if (asyncs [i]->sent) |
1374 | if (asyncs [i]->sent) |
1220 | { |
1375 | { |
1221 | asyncs [i]->sent = 0; |
1376 | asyncs [i]->sent = 0; |
… | |
… | |
1225 | #endif |
1380 | #endif |
1226 | } |
1381 | } |
1227 | |
1382 | |
1228 | /*****************************************************************************/ |
1383 | /*****************************************************************************/ |
1229 | |
1384 | |
|
|
1385 | void |
|
|
1386 | ev_feed_signal (int signum) |
|
|
1387 | { |
|
|
1388 | #if EV_MULTIPLICITY |
|
|
1389 | EV_P = signals [signum - 1].loop; |
|
|
1390 | |
|
|
1391 | if (!EV_A) |
|
|
1392 | return; |
|
|
1393 | #endif |
|
|
1394 | |
|
|
1395 | signals [signum - 1].pending = 1; |
|
|
1396 | evpipe_write (EV_A_ &sig_pending); |
|
|
1397 | } |
|
|
1398 | |
1230 | static void |
1399 | static void |
1231 | ev_sighandler (int signum) |
1400 | ev_sighandler (int signum) |
1232 | { |
1401 | { |
1233 | #if EV_MULTIPLICITY |
|
|
1234 | struct ev_loop *loop = &default_loop_struct; |
|
|
1235 | #endif |
|
|
1236 | |
|
|
1237 | #if _WIN32 |
1402 | #ifdef _WIN32 |
1238 | signal (signum, ev_sighandler); |
1403 | signal (signum, ev_sighandler); |
1239 | #endif |
1404 | #endif |
1240 | |
1405 | |
1241 | signals [signum - 1].gotsig = 1; |
1406 | ev_feed_signal (signum); |
1242 | evpipe_write (EV_A_ &gotsig); |
|
|
1243 | } |
1407 | } |
1244 | |
1408 | |
1245 | void noinline |
1409 | void noinline |
1246 | ev_feed_signal_event (EV_P_ int signum) |
1410 | ev_feed_signal_event (EV_P_ int signum) |
1247 | { |
1411 | { |
1248 | WL w; |
1412 | WL w; |
1249 | |
1413 | |
|
|
1414 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1415 | return; |
|
|
1416 | |
|
|
1417 | --signum; |
|
|
1418 | |
1250 | #if EV_MULTIPLICITY |
1419 | #if EV_MULTIPLICITY |
1251 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1420 | /* it is permissible to try to feed a signal to the wrong loop */ |
1252 | #endif |
1421 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1253 | |
1422 | |
1254 | --signum; |
1423 | if (expect_false (signals [signum].loop != EV_A)) |
1255 | |
|
|
1256 | if (signum < 0 || signum >= signalmax) |
|
|
1257 | return; |
1424 | return; |
|
|
1425 | #endif |
1258 | |
1426 | |
1259 | signals [signum].gotsig = 0; |
1427 | signals [signum].pending = 0; |
1260 | |
1428 | |
1261 | for (w = signals [signum].head; w; w = w->next) |
1429 | for (w = signals [signum].head; w; w = w->next) |
1262 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1430 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1263 | } |
1431 | } |
1264 | |
1432 | |
1265 | #if EV_USE_SIGNALFD |
1433 | #if EV_USE_SIGNALFD |
1266 | static void |
1434 | static void |
1267 | sigfdcb (EV_P_ ev_io *iow, int revents) |
1435 | sigfdcb (EV_P_ ev_io *iow, int revents) |
1268 | { |
1436 | { |
1269 | struct signalfd_siginfo si[4], *sip; |
1437 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
1270 | |
1438 | |
1271 | for (;;) |
1439 | for (;;) |
1272 | { |
1440 | { |
1273 | ssize_t res = read (sigfd, si, sizeof (si)); |
1441 | ssize_t res = read (sigfd, si, sizeof (si)); |
1274 | |
1442 | |
… | |
… | |
1280 | break; |
1448 | break; |
1281 | } |
1449 | } |
1282 | } |
1450 | } |
1283 | #endif |
1451 | #endif |
1284 | |
1452 | |
|
|
1453 | #endif |
|
|
1454 | |
1285 | /*****************************************************************************/ |
1455 | /*****************************************************************************/ |
1286 | |
1456 | |
|
|
1457 | #if EV_CHILD_ENABLE |
1287 | static WL childs [EV_PID_HASHSIZE]; |
1458 | static WL childs [EV_PID_HASHSIZE]; |
1288 | |
|
|
1289 | #ifndef _WIN32 |
|
|
1290 | |
1459 | |
1291 | static ev_signal childev; |
1460 | static ev_signal childev; |
1292 | |
1461 | |
1293 | #ifndef WIFCONTINUED |
1462 | #ifndef WIFCONTINUED |
1294 | # define WIFCONTINUED(status) 0 |
1463 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1299 | child_reap (EV_P_ int chain, int pid, int status) |
1468 | child_reap (EV_P_ int chain, int pid, int status) |
1300 | { |
1469 | { |
1301 | ev_child *w; |
1470 | ev_child *w; |
1302 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1471 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1303 | |
1472 | |
1304 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1473 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1305 | { |
1474 | { |
1306 | if ((w->pid == pid || !w->pid) |
1475 | if ((w->pid == pid || !w->pid) |
1307 | && (!traced || (w->flags & 1))) |
1476 | && (!traced || (w->flags & 1))) |
1308 | { |
1477 | { |
1309 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1478 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1334 | /* make sure we are called again until all children have been reaped */ |
1503 | /* make sure we are called again until all children have been reaped */ |
1335 | /* we need to do it this way so that the callback gets called before we continue */ |
1504 | /* we need to do it this way so that the callback gets called before we continue */ |
1336 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1505 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1337 | |
1506 | |
1338 | child_reap (EV_A_ pid, pid, status); |
1507 | child_reap (EV_A_ pid, pid, status); |
1339 | if (EV_PID_HASHSIZE > 1) |
1508 | if ((EV_PID_HASHSIZE) > 1) |
1340 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1509 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1341 | } |
1510 | } |
1342 | |
1511 | |
1343 | #endif |
1512 | #endif |
1344 | |
1513 | |
1345 | /*****************************************************************************/ |
1514 | /*****************************************************************************/ |
1346 | |
1515 | |
|
|
1516 | #if EV_USE_IOCP |
|
|
1517 | # include "ev_iocp.c" |
|
|
1518 | #endif |
1347 | #if EV_USE_PORT |
1519 | #if EV_USE_PORT |
1348 | # include "ev_port.c" |
1520 | # include "ev_port.c" |
1349 | #endif |
1521 | #endif |
1350 | #if EV_USE_KQUEUE |
1522 | #if EV_USE_KQUEUE |
1351 | # include "ev_kqueue.c" |
1523 | # include "ev_kqueue.c" |
… | |
… | |
1411 | #ifdef __APPLE__ |
1583 | #ifdef __APPLE__ |
1412 | /* only select works correctly on that "unix-certified" platform */ |
1584 | /* only select works correctly on that "unix-certified" platform */ |
1413 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1585 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1414 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1586 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1415 | #endif |
1587 | #endif |
|
|
1588 | #ifdef __FreeBSD__ |
|
|
1589 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1590 | #endif |
1416 | |
1591 | |
1417 | return flags; |
1592 | return flags; |
1418 | } |
1593 | } |
1419 | |
1594 | |
1420 | unsigned int |
1595 | unsigned int |
1421 | ev_embeddable_backends (void) |
1596 | ev_embeddable_backends (void) |
1422 | { |
1597 | { |
1423 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1598 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1424 | |
1599 | |
1425 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1600 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1426 | /* please fix it and tell me how to detect the fix */ |
1601 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1427 | flags &= ~EVBACKEND_EPOLL; |
1602 | flags &= ~EVBACKEND_EPOLL; |
1428 | |
1603 | |
1429 | return flags; |
1604 | return flags; |
1430 | } |
1605 | } |
1431 | |
1606 | |
1432 | unsigned int |
1607 | unsigned int |
1433 | ev_backend (EV_P) |
1608 | ev_backend (EV_P) |
1434 | { |
1609 | { |
1435 | return backend; |
1610 | return backend; |
1436 | } |
1611 | } |
1437 | |
1612 | |
1438 | #if EV_MINIMAL < 2 |
1613 | #if EV_FEATURE_API |
1439 | unsigned int |
1614 | unsigned int |
1440 | ev_loop_count (EV_P) |
1615 | ev_iteration (EV_P) |
1441 | { |
1616 | { |
1442 | return loop_count; |
1617 | return loop_count; |
1443 | } |
1618 | } |
1444 | |
1619 | |
1445 | unsigned int |
1620 | unsigned int |
1446 | ev_loop_depth (EV_P) |
1621 | ev_depth (EV_P) |
1447 | { |
1622 | { |
1448 | return loop_depth; |
1623 | return loop_depth; |
1449 | } |
1624 | } |
1450 | |
1625 | |
1451 | void |
1626 | void |
… | |
… | |
1488 | static void noinline |
1663 | static void noinline |
1489 | loop_init (EV_P_ unsigned int flags) |
1664 | loop_init (EV_P_ unsigned int flags) |
1490 | { |
1665 | { |
1491 | if (!backend) |
1666 | if (!backend) |
1492 | { |
1667 | { |
|
|
1668 | origflags = flags; |
|
|
1669 | |
1493 | #if EV_USE_REALTIME |
1670 | #if EV_USE_REALTIME |
1494 | if (!have_realtime) |
1671 | if (!have_realtime) |
1495 | { |
1672 | { |
1496 | struct timespec ts; |
1673 | struct timespec ts; |
1497 | |
1674 | |
… | |
… | |
1508 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1685 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1509 | have_monotonic = 1; |
1686 | have_monotonic = 1; |
1510 | } |
1687 | } |
1511 | #endif |
1688 | #endif |
1512 | |
1689 | |
|
|
1690 | /* pid check not overridable via env */ |
|
|
1691 | #ifndef _WIN32 |
|
|
1692 | if (flags & EVFLAG_FORKCHECK) |
|
|
1693 | curpid = getpid (); |
|
|
1694 | #endif |
|
|
1695 | |
|
|
1696 | if (!(flags & EVFLAG_NOENV) |
|
|
1697 | && !enable_secure () |
|
|
1698 | && getenv ("LIBEV_FLAGS")) |
|
|
1699 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1700 | |
1513 | ev_rt_now = ev_time (); |
1701 | ev_rt_now = ev_time (); |
1514 | mn_now = get_clock (); |
1702 | mn_now = get_clock (); |
1515 | now_floor = mn_now; |
1703 | now_floor = mn_now; |
1516 | rtmn_diff = ev_rt_now - mn_now; |
1704 | rtmn_diff = ev_rt_now - mn_now; |
1517 | #if EV_MINIMAL < 2 |
1705 | #if EV_FEATURE_API |
1518 | invoke_cb = ev_invoke_pending; |
1706 | invoke_cb = ev_invoke_pending; |
1519 | #endif |
1707 | #endif |
1520 | |
1708 | |
1521 | io_blocktime = 0.; |
1709 | io_blocktime = 0.; |
1522 | timeout_blocktime = 0.; |
1710 | timeout_blocktime = 0.; |
1523 | backend = 0; |
1711 | backend = 0; |
1524 | backend_fd = -1; |
1712 | backend_fd = -1; |
1525 | gotasync = 0; |
1713 | sig_pending = 0; |
|
|
1714 | #if EV_ASYNC_ENABLE |
|
|
1715 | async_pending = 0; |
|
|
1716 | #endif |
1526 | #if EV_USE_INOTIFY |
1717 | #if EV_USE_INOTIFY |
1527 | fs_fd = -2; |
1718 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1528 | #endif |
1719 | #endif |
1529 | #if EV_USE_SIGNALFD |
1720 | #if EV_USE_SIGNALFD |
1530 | sigfd = -2; |
1721 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1531 | #endif |
1722 | #endif |
1532 | |
1723 | |
1533 | /* pid check not overridable via env */ |
|
|
1534 | #ifndef _WIN32 |
|
|
1535 | if (flags & EVFLAG_FORKCHECK) |
|
|
1536 | curpid = getpid (); |
|
|
1537 | #endif |
|
|
1538 | |
|
|
1539 | if (!(flags & EVFLAG_NOENV) |
1724 | if (!(flags & EVBACKEND_MASK)) |
1540 | && !enable_secure () |
|
|
1541 | && getenv ("LIBEV_FLAGS")) |
|
|
1542 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1543 | |
|
|
1544 | if (!(flags & 0x0000ffffU)) |
|
|
1545 | flags |= ev_recommended_backends (); |
1725 | flags |= ev_recommended_backends (); |
1546 | |
1726 | |
|
|
1727 | #if EV_USE_IOCP |
|
|
1728 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1729 | #endif |
1547 | #if EV_USE_PORT |
1730 | #if EV_USE_PORT |
1548 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1731 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1549 | #endif |
1732 | #endif |
1550 | #if EV_USE_KQUEUE |
1733 | #if EV_USE_KQUEUE |
1551 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1734 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1560 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1743 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1561 | #endif |
1744 | #endif |
1562 | |
1745 | |
1563 | ev_prepare_init (&pending_w, pendingcb); |
1746 | ev_prepare_init (&pending_w, pendingcb); |
1564 | |
1747 | |
|
|
1748 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1565 | ev_init (&pipe_w, pipecb); |
1749 | ev_init (&pipe_w, pipecb); |
1566 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1750 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1751 | #endif |
1567 | } |
1752 | } |
1568 | } |
1753 | } |
1569 | |
1754 | |
1570 | /* free up a loop structure */ |
1755 | /* free up a loop structure */ |
1571 | static void noinline |
1756 | void |
1572 | loop_destroy (EV_P) |
1757 | ev_loop_destroy (EV_P) |
1573 | { |
1758 | { |
1574 | int i; |
1759 | int i; |
|
|
1760 | |
|
|
1761 | #if EV_MULTIPLICITY |
|
|
1762 | /* mimic free (0) */ |
|
|
1763 | if (!EV_A) |
|
|
1764 | return; |
|
|
1765 | #endif |
|
|
1766 | |
|
|
1767 | #if EV_CLEANUP_ENABLE |
|
|
1768 | /* queue cleanup watchers (and execute them) */ |
|
|
1769 | if (expect_false (cleanupcnt)) |
|
|
1770 | { |
|
|
1771 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1772 | EV_INVOKE_PENDING; |
|
|
1773 | } |
|
|
1774 | #endif |
|
|
1775 | |
|
|
1776 | #if EV_CHILD_ENABLE |
|
|
1777 | if (ev_is_active (&childev)) |
|
|
1778 | { |
|
|
1779 | ev_ref (EV_A); /* child watcher */ |
|
|
1780 | ev_signal_stop (EV_A_ &childev); |
|
|
1781 | } |
|
|
1782 | #endif |
1575 | |
1783 | |
1576 | if (ev_is_active (&pipe_w)) |
1784 | if (ev_is_active (&pipe_w)) |
1577 | { |
1785 | { |
1578 | /*ev_ref (EV_A);*/ |
1786 | /*ev_ref (EV_A);*/ |
1579 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1787 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1583 | close (evfd); |
1791 | close (evfd); |
1584 | #endif |
1792 | #endif |
1585 | |
1793 | |
1586 | if (evpipe [0] >= 0) |
1794 | if (evpipe [0] >= 0) |
1587 | { |
1795 | { |
1588 | close (evpipe [0]); |
1796 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1589 | close (evpipe [1]); |
1797 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1590 | } |
1798 | } |
1591 | } |
1799 | } |
1592 | |
1800 | |
1593 | #if EV_USE_SIGNALFD |
1801 | #if EV_USE_SIGNALFD |
1594 | if (ev_is_active (&sigfd_w)) |
1802 | if (ev_is_active (&sigfd_w)) |
1595 | { |
|
|
1596 | /*ev_ref (EV_A);*/ |
|
|
1597 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1598 | |
|
|
1599 | close (sigfd); |
1803 | close (sigfd); |
1600 | } |
|
|
1601 | #endif |
1804 | #endif |
1602 | |
1805 | |
1603 | #if EV_USE_INOTIFY |
1806 | #if EV_USE_INOTIFY |
1604 | if (fs_fd >= 0) |
1807 | if (fs_fd >= 0) |
1605 | close (fs_fd); |
1808 | close (fs_fd); |
1606 | #endif |
1809 | #endif |
1607 | |
1810 | |
1608 | if (backend_fd >= 0) |
1811 | if (backend_fd >= 0) |
1609 | close (backend_fd); |
1812 | close (backend_fd); |
1610 | |
1813 | |
|
|
1814 | #if EV_USE_IOCP |
|
|
1815 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1816 | #endif |
1611 | #if EV_USE_PORT |
1817 | #if EV_USE_PORT |
1612 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1818 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1613 | #endif |
1819 | #endif |
1614 | #if EV_USE_KQUEUE |
1820 | #if EV_USE_KQUEUE |
1615 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1821 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1630 | #if EV_IDLE_ENABLE |
1836 | #if EV_IDLE_ENABLE |
1631 | array_free (idle, [i]); |
1837 | array_free (idle, [i]); |
1632 | #endif |
1838 | #endif |
1633 | } |
1839 | } |
1634 | |
1840 | |
1635 | ev_free (anfds); anfdmax = 0; |
1841 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1636 | |
1842 | |
1637 | /* have to use the microsoft-never-gets-it-right macro */ |
1843 | /* have to use the microsoft-never-gets-it-right macro */ |
1638 | array_free (rfeed, EMPTY); |
1844 | array_free (rfeed, EMPTY); |
1639 | array_free (fdchange, EMPTY); |
1845 | array_free (fdchange, EMPTY); |
1640 | array_free (timer, EMPTY); |
1846 | array_free (timer, EMPTY); |
… | |
… | |
1642 | array_free (periodic, EMPTY); |
1848 | array_free (periodic, EMPTY); |
1643 | #endif |
1849 | #endif |
1644 | #if EV_FORK_ENABLE |
1850 | #if EV_FORK_ENABLE |
1645 | array_free (fork, EMPTY); |
1851 | array_free (fork, EMPTY); |
1646 | #endif |
1852 | #endif |
|
|
1853 | #if EV_CLEANUP_ENABLE |
|
|
1854 | array_free (cleanup, EMPTY); |
|
|
1855 | #endif |
1647 | array_free (prepare, EMPTY); |
1856 | array_free (prepare, EMPTY); |
1648 | array_free (check, EMPTY); |
1857 | array_free (check, EMPTY); |
1649 | #if EV_ASYNC_ENABLE |
1858 | #if EV_ASYNC_ENABLE |
1650 | array_free (async, EMPTY); |
1859 | array_free (async, EMPTY); |
1651 | #endif |
1860 | #endif |
1652 | |
1861 | |
1653 | backend = 0; |
1862 | backend = 0; |
|
|
1863 | |
|
|
1864 | #if EV_MULTIPLICITY |
|
|
1865 | if (ev_is_default_loop (EV_A)) |
|
|
1866 | #endif |
|
|
1867 | ev_default_loop_ptr = 0; |
|
|
1868 | #if EV_MULTIPLICITY |
|
|
1869 | else |
|
|
1870 | ev_free (EV_A); |
|
|
1871 | #endif |
1654 | } |
1872 | } |
1655 | |
1873 | |
1656 | #if EV_USE_INOTIFY |
1874 | #if EV_USE_INOTIFY |
1657 | inline_size void infy_fork (EV_P); |
1875 | inline_size void infy_fork (EV_P); |
1658 | #endif |
1876 | #endif |
… | |
… | |
1675 | |
1893 | |
1676 | if (ev_is_active (&pipe_w)) |
1894 | if (ev_is_active (&pipe_w)) |
1677 | { |
1895 | { |
1678 | /* this "locks" the handlers against writing to the pipe */ |
1896 | /* this "locks" the handlers against writing to the pipe */ |
1679 | /* while we modify the fd vars */ |
1897 | /* while we modify the fd vars */ |
1680 | gotsig = 1; |
1898 | sig_pending = 1; |
1681 | #if EV_ASYNC_ENABLE |
1899 | #if EV_ASYNC_ENABLE |
1682 | gotasync = 1; |
1900 | async_pending = 1; |
1683 | #endif |
1901 | #endif |
1684 | |
1902 | |
1685 | ev_ref (EV_A); |
1903 | ev_ref (EV_A); |
1686 | ev_io_stop (EV_A_ &pipe_w); |
1904 | ev_io_stop (EV_A_ &pipe_w); |
1687 | |
1905 | |
… | |
… | |
1690 | close (evfd); |
1908 | close (evfd); |
1691 | #endif |
1909 | #endif |
1692 | |
1910 | |
1693 | if (evpipe [0] >= 0) |
1911 | if (evpipe [0] >= 0) |
1694 | { |
1912 | { |
1695 | close (evpipe [0]); |
1913 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1696 | close (evpipe [1]); |
1914 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1697 | } |
1915 | } |
1698 | |
1916 | |
|
|
1917 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1699 | evpipe_init (EV_A); |
1918 | evpipe_init (EV_A); |
1700 | /* now iterate over everything, in case we missed something */ |
1919 | /* now iterate over everything, in case we missed something */ |
1701 | pipecb (EV_A_ &pipe_w, EV_READ); |
1920 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1921 | #endif |
1702 | } |
1922 | } |
1703 | |
1923 | |
1704 | postfork = 0; |
1924 | postfork = 0; |
1705 | } |
1925 | } |
1706 | |
1926 | |
1707 | #if EV_MULTIPLICITY |
1927 | #if EV_MULTIPLICITY |
1708 | |
1928 | |
1709 | struct ev_loop * |
1929 | struct ev_loop * |
1710 | ev_loop_new (unsigned int flags) |
1930 | ev_loop_new (unsigned int flags) |
1711 | { |
1931 | { |
1712 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1932 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1713 | |
1933 | |
1714 | memset (loop, 0, sizeof (struct ev_loop)); |
1934 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1715 | loop_init (EV_A_ flags); |
1935 | loop_init (EV_A_ flags); |
1716 | |
1936 | |
1717 | if (ev_backend (EV_A)) |
1937 | if (ev_backend (EV_A)) |
1718 | return loop; |
1938 | return EV_A; |
1719 | |
1939 | |
|
|
1940 | ev_free (EV_A); |
1720 | return 0; |
1941 | return 0; |
1721 | } |
1942 | } |
1722 | |
1943 | |
1723 | void |
|
|
1724 | ev_loop_destroy (EV_P) |
|
|
1725 | { |
|
|
1726 | loop_destroy (EV_A); |
|
|
1727 | ev_free (loop); |
|
|
1728 | } |
|
|
1729 | |
|
|
1730 | void |
|
|
1731 | ev_loop_fork (EV_P) |
|
|
1732 | { |
|
|
1733 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1734 | } |
|
|
1735 | #endif /* multiplicity */ |
1944 | #endif /* multiplicity */ |
1736 | |
1945 | |
1737 | #if EV_VERIFY |
1946 | #if EV_VERIFY |
1738 | static void noinline |
1947 | static void noinline |
1739 | verify_watcher (EV_P_ W w) |
1948 | verify_watcher (EV_P_ W w) |
… | |
… | |
1768 | verify_watcher (EV_A_ ws [cnt]); |
1977 | verify_watcher (EV_A_ ws [cnt]); |
1769 | } |
1978 | } |
1770 | } |
1979 | } |
1771 | #endif |
1980 | #endif |
1772 | |
1981 | |
1773 | #if EV_MINIMAL < 2 |
1982 | #if EV_FEATURE_API |
1774 | void |
1983 | void |
1775 | ev_loop_verify (EV_P) |
1984 | ev_verify (EV_P) |
1776 | { |
1985 | { |
1777 | #if EV_VERIFY |
1986 | #if EV_VERIFY |
1778 | int i; |
1987 | int i; |
1779 | WL w; |
1988 | WL w; |
1780 | |
1989 | |
… | |
… | |
1814 | #if EV_FORK_ENABLE |
2023 | #if EV_FORK_ENABLE |
1815 | assert (forkmax >= forkcnt); |
2024 | assert (forkmax >= forkcnt); |
1816 | array_verify (EV_A_ (W *)forks, forkcnt); |
2025 | array_verify (EV_A_ (W *)forks, forkcnt); |
1817 | #endif |
2026 | #endif |
1818 | |
2027 | |
|
|
2028 | #if EV_CLEANUP_ENABLE |
|
|
2029 | assert (cleanupmax >= cleanupcnt); |
|
|
2030 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2031 | #endif |
|
|
2032 | |
1819 | #if EV_ASYNC_ENABLE |
2033 | #if EV_ASYNC_ENABLE |
1820 | assert (asyncmax >= asynccnt); |
2034 | assert (asyncmax >= asynccnt); |
1821 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2035 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1822 | #endif |
2036 | #endif |
1823 | |
2037 | |
|
|
2038 | #if EV_PREPARE_ENABLE |
1824 | assert (preparemax >= preparecnt); |
2039 | assert (preparemax >= preparecnt); |
1825 | array_verify (EV_A_ (W *)prepares, preparecnt); |
2040 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2041 | #endif |
1826 | |
2042 | |
|
|
2043 | #if EV_CHECK_ENABLE |
1827 | assert (checkmax >= checkcnt); |
2044 | assert (checkmax >= checkcnt); |
1828 | array_verify (EV_A_ (W *)checks, checkcnt); |
2045 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2046 | #endif |
1829 | |
2047 | |
1830 | # if 0 |
2048 | # if 0 |
|
|
2049 | #if EV_CHILD_ENABLE |
1831 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2050 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1832 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2051 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2052 | #endif |
1833 | # endif |
2053 | # endif |
1834 | #endif |
2054 | #endif |
1835 | } |
2055 | } |
1836 | #endif |
2056 | #endif |
1837 | |
2057 | |
1838 | #if EV_MULTIPLICITY |
2058 | #if EV_MULTIPLICITY |
1839 | struct ev_loop * |
2059 | struct ev_loop * |
1840 | ev_default_loop_init (unsigned int flags) |
|
|
1841 | #else |
2060 | #else |
1842 | int |
2061 | int |
|
|
2062 | #endif |
1843 | ev_default_loop (unsigned int flags) |
2063 | ev_default_loop (unsigned int flags) |
1844 | #endif |
|
|
1845 | { |
2064 | { |
1846 | if (!ev_default_loop_ptr) |
2065 | if (!ev_default_loop_ptr) |
1847 | { |
2066 | { |
1848 | #if EV_MULTIPLICITY |
2067 | #if EV_MULTIPLICITY |
1849 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2068 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1850 | #else |
2069 | #else |
1851 | ev_default_loop_ptr = 1; |
2070 | ev_default_loop_ptr = 1; |
1852 | #endif |
2071 | #endif |
1853 | |
2072 | |
1854 | loop_init (EV_A_ flags); |
2073 | loop_init (EV_A_ flags); |
1855 | |
2074 | |
1856 | if (ev_backend (EV_A)) |
2075 | if (ev_backend (EV_A)) |
1857 | { |
2076 | { |
1858 | #ifndef _WIN32 |
2077 | #if EV_CHILD_ENABLE |
1859 | ev_signal_init (&childev, childcb, SIGCHLD); |
2078 | ev_signal_init (&childev, childcb, SIGCHLD); |
1860 | ev_set_priority (&childev, EV_MAXPRI); |
2079 | ev_set_priority (&childev, EV_MAXPRI); |
1861 | ev_signal_start (EV_A_ &childev); |
2080 | ev_signal_start (EV_A_ &childev); |
1862 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2081 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1863 | #endif |
2082 | #endif |
… | |
… | |
1868 | |
2087 | |
1869 | return ev_default_loop_ptr; |
2088 | return ev_default_loop_ptr; |
1870 | } |
2089 | } |
1871 | |
2090 | |
1872 | void |
2091 | void |
1873 | ev_default_destroy (void) |
2092 | ev_loop_fork (EV_P) |
1874 | { |
2093 | { |
1875 | #if EV_MULTIPLICITY |
|
|
1876 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1877 | #endif |
|
|
1878 | |
|
|
1879 | ev_default_loop_ptr = 0; |
|
|
1880 | |
|
|
1881 | #ifndef _WIN32 |
|
|
1882 | ev_ref (EV_A); /* child watcher */ |
|
|
1883 | ev_signal_stop (EV_A_ &childev); |
|
|
1884 | #endif |
|
|
1885 | |
|
|
1886 | loop_destroy (EV_A); |
|
|
1887 | } |
|
|
1888 | |
|
|
1889 | void |
|
|
1890 | ev_default_fork (void) |
|
|
1891 | { |
|
|
1892 | #if EV_MULTIPLICITY |
|
|
1893 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1894 | #endif |
|
|
1895 | |
|
|
1896 | postfork = 1; /* must be in line with ev_loop_fork */ |
2094 | postfork = 1; /* must be in line with ev_default_fork */ |
1897 | } |
2095 | } |
1898 | |
2096 | |
1899 | /*****************************************************************************/ |
2097 | /*****************************************************************************/ |
1900 | |
2098 | |
1901 | void |
2099 | void |
… | |
… | |
1923 | |
2121 | |
1924 | for (pri = NUMPRI; pri--; ) |
2122 | for (pri = NUMPRI; pri--; ) |
1925 | while (pendingcnt [pri]) |
2123 | while (pendingcnt [pri]) |
1926 | { |
2124 | { |
1927 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2125 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1928 | |
|
|
1929 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1930 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1931 | |
2126 | |
1932 | p->w->pending = 0; |
2127 | p->w->pending = 0; |
1933 | EV_CB_INVOKE (p->w, p->events); |
2128 | EV_CB_INVOKE (p->w, p->events); |
1934 | EV_FREQUENT_CHECK; |
2129 | EV_FREQUENT_CHECK; |
1935 | } |
2130 | } |
… | |
… | |
1992 | EV_FREQUENT_CHECK; |
2187 | EV_FREQUENT_CHECK; |
1993 | feed_reverse (EV_A_ (W)w); |
2188 | feed_reverse (EV_A_ (W)w); |
1994 | } |
2189 | } |
1995 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2190 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1996 | |
2191 | |
1997 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2192 | feed_reverse_done (EV_A_ EV_TIMER); |
1998 | } |
2193 | } |
1999 | } |
2194 | } |
2000 | |
2195 | |
2001 | #if EV_PERIODIC_ENABLE |
2196 | #if EV_PERIODIC_ENABLE |
|
|
2197 | |
|
|
2198 | inline_speed |
|
|
2199 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2200 | { |
|
|
2201 | /* TODO: use slow but potentially more correct incremental algo, */ |
|
|
2202 | /* also do not rely on ceil */ |
|
|
2203 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2204 | } |
|
|
2205 | |
2002 | /* make periodics pending */ |
2206 | /* make periodics pending */ |
2003 | inline_size void |
2207 | inline_size void |
2004 | periodics_reify (EV_P) |
2208 | periodics_reify (EV_P) |
2005 | { |
2209 | { |
2006 | EV_FREQUENT_CHECK; |
2210 | EV_FREQUENT_CHECK; |
… | |
… | |
2025 | ANHE_at_cache (periodics [HEAP0]); |
2229 | ANHE_at_cache (periodics [HEAP0]); |
2026 | downheap (periodics, periodiccnt, HEAP0); |
2230 | downheap (periodics, periodiccnt, HEAP0); |
2027 | } |
2231 | } |
2028 | else if (w->interval) |
2232 | else if (w->interval) |
2029 | { |
2233 | { |
2030 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2234 | periodic_recalc (EV_A_ w); |
|
|
2235 | |
2031 | /* if next trigger time is not sufficiently in the future, put it there */ |
2236 | /* if next trigger time is not sufficiently in the future, put it there */ |
2032 | /* this might happen because of floating point inexactness */ |
2237 | /* this might happen because of floating point inexactness */ |
2033 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
2238 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
2034 | { |
2239 | { |
2035 | ev_at (w) += w->interval; |
2240 | ev_at (w) += w->interval; |
… | |
… | |
2055 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2260 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2056 | } |
2261 | } |
2057 | } |
2262 | } |
2058 | |
2263 | |
2059 | /* simply recalculate all periodics */ |
2264 | /* simply recalculate all periodics */ |
2060 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2265 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2061 | static void noinline |
2266 | static void noinline |
2062 | periodics_reschedule (EV_P) |
2267 | periodics_reschedule (EV_P) |
2063 | { |
2268 | { |
2064 | int i; |
2269 | int i; |
2065 | |
2270 | |
… | |
… | |
2069 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2274 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2070 | |
2275 | |
2071 | if (w->reschedule_cb) |
2276 | if (w->reschedule_cb) |
2072 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2277 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2073 | else if (w->interval) |
2278 | else if (w->interval) |
2074 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2279 | periodic_recalc (EV_A_ w); |
2075 | |
2280 | |
2076 | ANHE_at_cache (periodics [i]); |
2281 | ANHE_at_cache (periodics [i]); |
2077 | } |
2282 | } |
2078 | |
2283 | |
2079 | reheap (periodics, periodiccnt); |
2284 | reheap (periodics, periodiccnt); |
… | |
… | |
2093 | ANHE_at_cache (*he); |
2298 | ANHE_at_cache (*he); |
2094 | } |
2299 | } |
2095 | } |
2300 | } |
2096 | |
2301 | |
2097 | /* fetch new monotonic and realtime times from the kernel */ |
2302 | /* fetch new monotonic and realtime times from the kernel */ |
2098 | /* also detetc if there was a timejump, and act accordingly */ |
2303 | /* also detect if there was a timejump, and act accordingly */ |
2099 | inline_speed void |
2304 | inline_speed void |
2100 | time_update (EV_P_ ev_tstamp max_block) |
2305 | time_update (EV_P_ ev_tstamp max_block) |
2101 | { |
2306 | { |
2102 | #if EV_USE_MONOTONIC |
2307 | #if EV_USE_MONOTONIC |
2103 | if (expect_true (have_monotonic)) |
2308 | if (expect_true (have_monotonic)) |
… | |
… | |
2161 | mn_now = ev_rt_now; |
2366 | mn_now = ev_rt_now; |
2162 | } |
2367 | } |
2163 | } |
2368 | } |
2164 | |
2369 | |
2165 | void |
2370 | void |
2166 | ev_loop (EV_P_ int flags) |
2371 | ev_run (EV_P_ int flags) |
2167 | { |
2372 | { |
2168 | #if EV_MINIMAL < 2 |
2373 | #if EV_FEATURE_API |
2169 | ++loop_depth; |
2374 | ++loop_depth; |
2170 | #endif |
2375 | #endif |
2171 | |
2376 | |
2172 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2377 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2173 | |
2378 | |
2174 | loop_done = EVUNLOOP_CANCEL; |
2379 | loop_done = EVBREAK_CANCEL; |
2175 | |
2380 | |
2176 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2381 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2177 | |
2382 | |
2178 | do |
2383 | do |
2179 | { |
2384 | { |
2180 | #if EV_VERIFY >= 2 |
2385 | #if EV_VERIFY >= 2 |
2181 | ev_loop_verify (EV_A); |
2386 | ev_verify (EV_A); |
2182 | #endif |
2387 | #endif |
2183 | |
2388 | |
2184 | #ifndef _WIN32 |
2389 | #ifndef _WIN32 |
2185 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2390 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2186 | if (expect_false (getpid () != curpid)) |
2391 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2198 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2403 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2199 | EV_INVOKE_PENDING; |
2404 | EV_INVOKE_PENDING; |
2200 | } |
2405 | } |
2201 | #endif |
2406 | #endif |
2202 | |
2407 | |
|
|
2408 | #if EV_PREPARE_ENABLE |
2203 | /* queue prepare watchers (and execute them) */ |
2409 | /* queue prepare watchers (and execute them) */ |
2204 | if (expect_false (preparecnt)) |
2410 | if (expect_false (preparecnt)) |
2205 | { |
2411 | { |
2206 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2412 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2207 | EV_INVOKE_PENDING; |
2413 | EV_INVOKE_PENDING; |
2208 | } |
2414 | } |
|
|
2415 | #endif |
2209 | |
2416 | |
2210 | if (expect_false (loop_done)) |
2417 | if (expect_false (loop_done)) |
2211 | break; |
2418 | break; |
2212 | |
2419 | |
2213 | /* we might have forked, so reify kernel state if necessary */ |
2420 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2220 | /* calculate blocking time */ |
2427 | /* calculate blocking time */ |
2221 | { |
2428 | { |
2222 | ev_tstamp waittime = 0.; |
2429 | ev_tstamp waittime = 0.; |
2223 | ev_tstamp sleeptime = 0.; |
2430 | ev_tstamp sleeptime = 0.; |
2224 | |
2431 | |
|
|
2432 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2433 | ev_tstamp prev_mn_now = mn_now; |
|
|
2434 | |
|
|
2435 | /* update time to cancel out callback processing overhead */ |
|
|
2436 | time_update (EV_A_ 1e100); |
|
|
2437 | |
2225 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2438 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2226 | { |
2439 | { |
2227 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2228 | ev_tstamp prev_mn_now = mn_now; |
|
|
2229 | |
|
|
2230 | /* update time to cancel out callback processing overhead */ |
|
|
2231 | time_update (EV_A_ 1e100); |
|
|
2232 | |
|
|
2233 | waittime = MAX_BLOCKTIME; |
2440 | waittime = MAX_BLOCKTIME; |
2234 | |
2441 | |
2235 | if (timercnt) |
2442 | if (timercnt) |
2236 | { |
2443 | { |
2237 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2444 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2264 | waittime -= sleeptime; |
2471 | waittime -= sleeptime; |
2265 | } |
2472 | } |
2266 | } |
2473 | } |
2267 | } |
2474 | } |
2268 | |
2475 | |
2269 | #if EV_MINIMAL < 2 |
2476 | #if EV_FEATURE_API |
2270 | ++loop_count; |
2477 | ++loop_count; |
2271 | #endif |
2478 | #endif |
2272 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2479 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2273 | backend_poll (EV_A_ waittime); |
2480 | backend_poll (EV_A_ waittime); |
2274 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2481 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2275 | |
2482 | |
2276 | /* update ev_rt_now, do magic */ |
2483 | /* update ev_rt_now, do magic */ |
2277 | time_update (EV_A_ waittime + sleeptime); |
2484 | time_update (EV_A_ waittime + sleeptime); |
2278 | } |
2485 | } |
2279 | |
2486 | |
… | |
… | |
2286 | #if EV_IDLE_ENABLE |
2493 | #if EV_IDLE_ENABLE |
2287 | /* queue idle watchers unless other events are pending */ |
2494 | /* queue idle watchers unless other events are pending */ |
2288 | idle_reify (EV_A); |
2495 | idle_reify (EV_A); |
2289 | #endif |
2496 | #endif |
2290 | |
2497 | |
|
|
2498 | #if EV_CHECK_ENABLE |
2291 | /* queue check watchers, to be executed first */ |
2499 | /* queue check watchers, to be executed first */ |
2292 | if (expect_false (checkcnt)) |
2500 | if (expect_false (checkcnt)) |
2293 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2501 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2502 | #endif |
2294 | |
2503 | |
2295 | EV_INVOKE_PENDING; |
2504 | EV_INVOKE_PENDING; |
2296 | } |
2505 | } |
2297 | while (expect_true ( |
2506 | while (expect_true ( |
2298 | activecnt |
2507 | activecnt |
2299 | && !loop_done |
2508 | && !loop_done |
2300 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2509 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2301 | )); |
2510 | )); |
2302 | |
2511 | |
2303 | if (loop_done == EVUNLOOP_ONE) |
2512 | if (loop_done == EVBREAK_ONE) |
2304 | loop_done = EVUNLOOP_CANCEL; |
2513 | loop_done = EVBREAK_CANCEL; |
2305 | |
2514 | |
2306 | #if EV_MINIMAL < 2 |
2515 | #if EV_FEATURE_API |
2307 | --loop_depth; |
2516 | --loop_depth; |
2308 | #endif |
2517 | #endif |
2309 | } |
2518 | } |
2310 | |
2519 | |
2311 | void |
2520 | void |
2312 | ev_unloop (EV_P_ int how) |
2521 | ev_break (EV_P_ int how) |
2313 | { |
2522 | { |
2314 | loop_done = how; |
2523 | loop_done = how; |
2315 | } |
2524 | } |
2316 | |
2525 | |
2317 | void |
2526 | void |
… | |
… | |
2364 | inline_size void |
2573 | inline_size void |
2365 | wlist_del (WL *head, WL elem) |
2574 | wlist_del (WL *head, WL elem) |
2366 | { |
2575 | { |
2367 | while (*head) |
2576 | while (*head) |
2368 | { |
2577 | { |
2369 | if (*head == elem) |
2578 | if (expect_true (*head == elem)) |
2370 | { |
2579 | { |
2371 | *head = elem->next; |
2580 | *head = elem->next; |
2372 | return; |
2581 | break; |
2373 | } |
2582 | } |
2374 | |
2583 | |
2375 | head = &(*head)->next; |
2584 | head = &(*head)->next; |
2376 | } |
2585 | } |
2377 | } |
2586 | } |
… | |
… | |
2437 | |
2646 | |
2438 | if (expect_false (ev_is_active (w))) |
2647 | if (expect_false (ev_is_active (w))) |
2439 | return; |
2648 | return; |
2440 | |
2649 | |
2441 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2650 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2442 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2651 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2443 | |
2652 | |
2444 | EV_FREQUENT_CHECK; |
2653 | EV_FREQUENT_CHECK; |
2445 | |
2654 | |
2446 | ev_start (EV_A_ (W)w, 1); |
2655 | ev_start (EV_A_ (W)w, 1); |
2447 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2656 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2465 | EV_FREQUENT_CHECK; |
2674 | EV_FREQUENT_CHECK; |
2466 | |
2675 | |
2467 | wlist_del (&anfds[w->fd].head, (WL)w); |
2676 | wlist_del (&anfds[w->fd].head, (WL)w); |
2468 | ev_stop (EV_A_ (W)w); |
2677 | ev_stop (EV_A_ (W)w); |
2469 | |
2678 | |
2470 | fd_change (EV_A_ w->fd, 1); |
2679 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2471 | |
2680 | |
2472 | EV_FREQUENT_CHECK; |
2681 | EV_FREQUENT_CHECK; |
2473 | } |
2682 | } |
2474 | |
2683 | |
2475 | void noinline |
2684 | void noinline |
… | |
… | |
2517 | timers [active] = timers [timercnt + HEAP0]; |
2726 | timers [active] = timers [timercnt + HEAP0]; |
2518 | adjustheap (timers, timercnt, active); |
2727 | adjustheap (timers, timercnt, active); |
2519 | } |
2728 | } |
2520 | } |
2729 | } |
2521 | |
2730 | |
2522 | EV_FREQUENT_CHECK; |
|
|
2523 | |
|
|
2524 | ev_at (w) -= mn_now; |
2731 | ev_at (w) -= mn_now; |
2525 | |
2732 | |
2526 | ev_stop (EV_A_ (W)w); |
2733 | ev_stop (EV_A_ (W)w); |
|
|
2734 | |
|
|
2735 | EV_FREQUENT_CHECK; |
2527 | } |
2736 | } |
2528 | |
2737 | |
2529 | void noinline |
2738 | void noinline |
2530 | ev_timer_again (EV_P_ ev_timer *w) |
2739 | ev_timer_again (EV_P_ ev_timer *w) |
2531 | { |
2740 | { |
… | |
… | |
2567 | if (w->reschedule_cb) |
2776 | if (w->reschedule_cb) |
2568 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2777 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2569 | else if (w->interval) |
2778 | else if (w->interval) |
2570 | { |
2779 | { |
2571 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2780 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2572 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2781 | periodic_recalc (EV_A_ w); |
2573 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2574 | } |
2782 | } |
2575 | else |
2783 | else |
2576 | ev_at (w) = w->offset; |
2784 | ev_at (w) = w->offset; |
2577 | |
2785 | |
2578 | EV_FREQUENT_CHECK; |
2786 | EV_FREQUENT_CHECK; |
… | |
… | |
2610 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2818 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2611 | adjustheap (periodics, periodiccnt, active); |
2819 | adjustheap (periodics, periodiccnt, active); |
2612 | } |
2820 | } |
2613 | } |
2821 | } |
2614 | |
2822 | |
2615 | EV_FREQUENT_CHECK; |
|
|
2616 | |
|
|
2617 | ev_stop (EV_A_ (W)w); |
2823 | ev_stop (EV_A_ (W)w); |
|
|
2824 | |
|
|
2825 | EV_FREQUENT_CHECK; |
2618 | } |
2826 | } |
2619 | |
2827 | |
2620 | void noinline |
2828 | void noinline |
2621 | ev_periodic_again (EV_P_ ev_periodic *w) |
2829 | ev_periodic_again (EV_P_ ev_periodic *w) |
2622 | { |
2830 | { |
… | |
… | |
2628 | |
2836 | |
2629 | #ifndef SA_RESTART |
2837 | #ifndef SA_RESTART |
2630 | # define SA_RESTART 0 |
2838 | # define SA_RESTART 0 |
2631 | #endif |
2839 | #endif |
2632 | |
2840 | |
|
|
2841 | #if EV_SIGNAL_ENABLE |
|
|
2842 | |
2633 | void noinline |
2843 | void noinline |
2634 | ev_signal_start (EV_P_ ev_signal *w) |
2844 | ev_signal_start (EV_P_ ev_signal *w) |
2635 | { |
2845 | { |
2636 | #if EV_MULTIPLICITY |
|
|
2637 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2638 | #endif |
|
|
2639 | if (expect_false (ev_is_active (w))) |
2846 | if (expect_false (ev_is_active (w))) |
2640 | return; |
2847 | return; |
2641 | |
2848 | |
2642 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2849 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
2850 | |
|
|
2851 | #if EV_MULTIPLICITY |
|
|
2852 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2853 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2854 | |
|
|
2855 | signals [w->signum - 1].loop = EV_A; |
|
|
2856 | #endif |
2643 | |
2857 | |
2644 | EV_FREQUENT_CHECK; |
2858 | EV_FREQUENT_CHECK; |
2645 | |
2859 | |
2646 | #if EV_USE_SIGNALFD |
2860 | #if EV_USE_SIGNALFD |
2647 | if (sigfd == -2) |
2861 | if (sigfd == -2) |
… | |
… | |
2669 | sigaddset (&sigfd_set, w->signum); |
2883 | sigaddset (&sigfd_set, w->signum); |
2670 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
2884 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
2671 | |
2885 | |
2672 | signalfd (sigfd, &sigfd_set, 0); |
2886 | signalfd (sigfd, &sigfd_set, 0); |
2673 | } |
2887 | } |
2674 | else |
|
|
2675 | #endif |
2888 | #endif |
2676 | evpipe_init (EV_A); |
|
|
2677 | |
|
|
2678 | { |
|
|
2679 | #ifndef _WIN32 |
|
|
2680 | sigset_t full, prev; |
|
|
2681 | sigfillset (&full); |
|
|
2682 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2683 | #endif |
|
|
2684 | |
|
|
2685 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
|
|
2686 | |
|
|
2687 | #ifndef _WIN32 |
|
|
2688 | if (sigfd < 0)/*TODO*/ |
|
|
2689 | sigdelset (&prev, w->signum); |
|
|
2690 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2691 | #endif |
|
|
2692 | } |
|
|
2693 | |
2889 | |
2694 | ev_start (EV_A_ (W)w, 1); |
2890 | ev_start (EV_A_ (W)w, 1); |
2695 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2891 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2696 | |
2892 | |
2697 | if (!((WL)w)->next) |
2893 | if (!((WL)w)->next) |
|
|
2894 | # if EV_USE_SIGNALFD |
|
|
2895 | if (sigfd < 0) /*TODO*/ |
|
|
2896 | # endif |
2698 | { |
2897 | { |
2699 | #if _WIN32 |
2898 | # ifdef _WIN32 |
|
|
2899 | evpipe_init (EV_A); |
|
|
2900 | |
2700 | signal (w->signum, ev_sighandler); |
2901 | signal (w->signum, ev_sighandler); |
2701 | #else |
2902 | # else |
2702 | if (sigfd < 0) /*TODO*/ |
|
|
2703 | { |
|
|
2704 | struct sigaction sa = { }; |
2903 | struct sigaction sa; |
|
|
2904 | |
|
|
2905 | evpipe_init (EV_A); |
|
|
2906 | |
2705 | sa.sa_handler = ev_sighandler; |
2907 | sa.sa_handler = ev_sighandler; |
2706 | sigfillset (&sa.sa_mask); |
2908 | sigfillset (&sa.sa_mask); |
2707 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2909 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2708 | sigaction (w->signum, &sa, 0); |
2910 | sigaction (w->signum, &sa, 0); |
|
|
2911 | |
|
|
2912 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2913 | { |
|
|
2914 | sigemptyset (&sa.sa_mask); |
|
|
2915 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2916 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2709 | } |
2917 | } |
2710 | #endif |
2918 | #endif |
2711 | } |
2919 | } |
2712 | |
2920 | |
2713 | EV_FREQUENT_CHECK; |
2921 | EV_FREQUENT_CHECK; |
2714 | } |
2922 | } |
2715 | |
2923 | |
2716 | void noinline |
2924 | void noinline |
… | |
… | |
2724 | |
2932 | |
2725 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2933 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2726 | ev_stop (EV_A_ (W)w); |
2934 | ev_stop (EV_A_ (W)w); |
2727 | |
2935 | |
2728 | if (!signals [w->signum - 1].head) |
2936 | if (!signals [w->signum - 1].head) |
|
|
2937 | { |
|
|
2938 | #if EV_MULTIPLICITY |
|
|
2939 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2940 | #endif |
2729 | #if EV_USE_SIGNALFD |
2941 | #if EV_USE_SIGNALFD |
2730 | if (sigfd >= 0) |
2942 | if (sigfd >= 0) |
2731 | { |
2943 | { |
2732 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
2944 | sigset_t ss; |
|
|
2945 | |
|
|
2946 | sigemptyset (&ss); |
|
|
2947 | sigaddset (&ss, w->signum); |
2733 | sigdelset (&sigfd_set, w->signum); |
2948 | sigdelset (&sigfd_set, w->signum); |
|
|
2949 | |
2734 | signalfd (sigfd, &sigfd_set, 0); |
2950 | signalfd (sigfd, &sigfd_set, 0); |
2735 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
2951 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
2736 | /*TODO: maybe unblock signal? */ |
|
|
2737 | } |
2952 | } |
2738 | else |
2953 | else |
2739 | #endif |
2954 | #endif |
2740 | signal (w->signum, SIG_DFL); |
2955 | signal (w->signum, SIG_DFL); |
|
|
2956 | } |
2741 | |
2957 | |
2742 | EV_FREQUENT_CHECK; |
2958 | EV_FREQUENT_CHECK; |
2743 | } |
2959 | } |
|
|
2960 | |
|
|
2961 | #endif |
|
|
2962 | |
|
|
2963 | #if EV_CHILD_ENABLE |
2744 | |
2964 | |
2745 | void |
2965 | void |
2746 | ev_child_start (EV_P_ ev_child *w) |
2966 | ev_child_start (EV_P_ ev_child *w) |
2747 | { |
2967 | { |
2748 | #if EV_MULTIPLICITY |
2968 | #if EV_MULTIPLICITY |
… | |
… | |
2752 | return; |
2972 | return; |
2753 | |
2973 | |
2754 | EV_FREQUENT_CHECK; |
2974 | EV_FREQUENT_CHECK; |
2755 | |
2975 | |
2756 | ev_start (EV_A_ (W)w, 1); |
2976 | ev_start (EV_A_ (W)w, 1); |
2757 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2977 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2758 | |
2978 | |
2759 | EV_FREQUENT_CHECK; |
2979 | EV_FREQUENT_CHECK; |
2760 | } |
2980 | } |
2761 | |
2981 | |
2762 | void |
2982 | void |
… | |
… | |
2766 | if (expect_false (!ev_is_active (w))) |
2986 | if (expect_false (!ev_is_active (w))) |
2767 | return; |
2987 | return; |
2768 | |
2988 | |
2769 | EV_FREQUENT_CHECK; |
2989 | EV_FREQUENT_CHECK; |
2770 | |
2990 | |
2771 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2991 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2772 | ev_stop (EV_A_ (W)w); |
2992 | ev_stop (EV_A_ (W)w); |
2773 | |
2993 | |
2774 | EV_FREQUENT_CHECK; |
2994 | EV_FREQUENT_CHECK; |
2775 | } |
2995 | } |
|
|
2996 | |
|
|
2997 | #endif |
2776 | |
2998 | |
2777 | #if EV_STAT_ENABLE |
2999 | #if EV_STAT_ENABLE |
2778 | |
3000 | |
2779 | # ifdef _WIN32 |
3001 | # ifdef _WIN32 |
2780 | # undef lstat |
3002 | # undef lstat |
… | |
… | |
2786 | #define MIN_STAT_INTERVAL 0.1074891 |
3008 | #define MIN_STAT_INTERVAL 0.1074891 |
2787 | |
3009 | |
2788 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3010 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2789 | |
3011 | |
2790 | #if EV_USE_INOTIFY |
3012 | #if EV_USE_INOTIFY |
2791 | # define EV_INOTIFY_BUFSIZE 8192 |
3013 | |
|
|
3014 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3015 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2792 | |
3016 | |
2793 | static void noinline |
3017 | static void noinline |
2794 | infy_add (EV_P_ ev_stat *w) |
3018 | infy_add (EV_P_ ev_stat *w) |
2795 | { |
3019 | { |
2796 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
3020 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2797 | |
3021 | |
2798 | if (w->wd < 0) |
3022 | if (w->wd >= 0) |
|
|
3023 | { |
|
|
3024 | struct statfs sfs; |
|
|
3025 | |
|
|
3026 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3027 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3028 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3029 | |
|
|
3030 | if (!fs_2625) |
|
|
3031 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3032 | else if (!statfs (w->path, &sfs) |
|
|
3033 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3034 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3035 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3036 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3037 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3038 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3039 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3040 | else |
|
|
3041 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2799 | { |
3042 | } |
|
|
3043 | else |
|
|
3044 | { |
|
|
3045 | /* can't use inotify, continue to stat */ |
2800 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3046 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2801 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2802 | |
3047 | |
2803 | /* monitor some parent directory for speedup hints */ |
3048 | /* if path is not there, monitor some parent directory for speedup hints */ |
2804 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3049 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2805 | /* but an efficiency issue only */ |
3050 | /* but an efficiency issue only */ |
2806 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3051 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2807 | { |
3052 | { |
2808 | char path [4096]; |
3053 | char path [4096]; |
… | |
… | |
2824 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3069 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2825 | } |
3070 | } |
2826 | } |
3071 | } |
2827 | |
3072 | |
2828 | if (w->wd >= 0) |
3073 | if (w->wd >= 0) |
2829 | { |
|
|
2830 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3074 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2831 | |
3075 | |
2832 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3076 | /* now re-arm timer, if required */ |
2833 | /* unless the filesystem it known to be local, we therefore still poll */ |
3077 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2834 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2835 | struct statfs sfs; |
|
|
2836 | |
|
|
2837 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2838 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2839 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2840 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2841 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2842 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2843 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2844 | return; |
|
|
2845 | |
|
|
2846 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2847 | ev_timer_again (EV_A_ &w->timer); |
3078 | ev_timer_again (EV_A_ &w->timer); |
2848 | } |
3079 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2849 | } |
3080 | } |
2850 | |
3081 | |
2851 | static void noinline |
3082 | static void noinline |
2852 | infy_del (EV_P_ ev_stat *w) |
3083 | infy_del (EV_P_ ev_stat *w) |
2853 | { |
3084 | { |
… | |
… | |
2856 | |
3087 | |
2857 | if (wd < 0) |
3088 | if (wd < 0) |
2858 | return; |
3089 | return; |
2859 | |
3090 | |
2860 | w->wd = -2; |
3091 | w->wd = -2; |
2861 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3092 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2862 | wlist_del (&fs_hash [slot].head, (WL)w); |
3093 | wlist_del (&fs_hash [slot].head, (WL)w); |
2863 | |
3094 | |
2864 | /* remove this watcher, if others are watching it, they will rearm */ |
3095 | /* remove this watcher, if others are watching it, they will rearm */ |
2865 | inotify_rm_watch (fs_fd, wd); |
3096 | inotify_rm_watch (fs_fd, wd); |
2866 | } |
3097 | } |
… | |
… | |
2868 | static void noinline |
3099 | static void noinline |
2869 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3100 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2870 | { |
3101 | { |
2871 | if (slot < 0) |
3102 | if (slot < 0) |
2872 | /* overflow, need to check for all hash slots */ |
3103 | /* overflow, need to check for all hash slots */ |
2873 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3104 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2874 | infy_wd (EV_A_ slot, wd, ev); |
3105 | infy_wd (EV_A_ slot, wd, ev); |
2875 | else |
3106 | else |
2876 | { |
3107 | { |
2877 | WL w_; |
3108 | WL w_; |
2878 | |
3109 | |
2879 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3110 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2880 | { |
3111 | { |
2881 | ev_stat *w = (ev_stat *)w_; |
3112 | ev_stat *w = (ev_stat *)w_; |
2882 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3113 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2883 | |
3114 | |
2884 | if (w->wd == wd || wd == -1) |
3115 | if (w->wd == wd || wd == -1) |
2885 | { |
3116 | { |
2886 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3117 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2887 | { |
3118 | { |
2888 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3119 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2889 | w->wd = -1; |
3120 | w->wd = -1; |
2890 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3121 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2891 | } |
3122 | } |
2892 | |
3123 | |
2893 | stat_timer_cb (EV_A_ &w->timer, 0); |
3124 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2898 | |
3129 | |
2899 | static void |
3130 | static void |
2900 | infy_cb (EV_P_ ev_io *w, int revents) |
3131 | infy_cb (EV_P_ ev_io *w, int revents) |
2901 | { |
3132 | { |
2902 | char buf [EV_INOTIFY_BUFSIZE]; |
3133 | char buf [EV_INOTIFY_BUFSIZE]; |
2903 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2904 | int ofs; |
3134 | int ofs; |
2905 | int len = read (fs_fd, buf, sizeof (buf)); |
3135 | int len = read (fs_fd, buf, sizeof (buf)); |
2906 | |
3136 | |
2907 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3137 | for (ofs = 0; ofs < len; ) |
|
|
3138 | { |
|
|
3139 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2908 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3140 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3141 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3142 | } |
2909 | } |
3143 | } |
2910 | |
3144 | |
2911 | inline_size void |
3145 | inline_size void |
2912 | check_2625 (EV_P) |
3146 | ev_check_2625 (EV_P) |
2913 | { |
3147 | { |
2914 | /* kernels < 2.6.25 are borked |
3148 | /* kernels < 2.6.25 are borked |
2915 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3149 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2916 | */ |
3150 | */ |
2917 | struct utsname buf; |
3151 | if (ev_linux_version () < 0x020619) |
2918 | int major, minor, micro; |
|
|
2919 | |
|
|
2920 | if (uname (&buf)) |
|
|
2921 | return; |
3152 | return; |
2922 | |
3153 | |
2923 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2924 | return; |
|
|
2925 | |
|
|
2926 | if (major < 2 |
|
|
2927 | || (major == 2 && minor < 6) |
|
|
2928 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2929 | return; |
|
|
2930 | |
|
|
2931 | fs_2625 = 1; |
3154 | fs_2625 = 1; |
|
|
3155 | } |
|
|
3156 | |
|
|
3157 | inline_size int |
|
|
3158 | infy_newfd (void) |
|
|
3159 | { |
|
|
3160 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3161 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3162 | if (fd >= 0) |
|
|
3163 | return fd; |
|
|
3164 | #endif |
|
|
3165 | return inotify_init (); |
2932 | } |
3166 | } |
2933 | |
3167 | |
2934 | inline_size void |
3168 | inline_size void |
2935 | infy_init (EV_P) |
3169 | infy_init (EV_P) |
2936 | { |
3170 | { |
2937 | if (fs_fd != -2) |
3171 | if (fs_fd != -2) |
2938 | return; |
3172 | return; |
2939 | |
3173 | |
2940 | fs_fd = -1; |
3174 | fs_fd = -1; |
2941 | |
3175 | |
2942 | check_2625 (EV_A); |
3176 | ev_check_2625 (EV_A); |
2943 | |
3177 | |
2944 | fs_fd = inotify_init (); |
3178 | fs_fd = infy_newfd (); |
2945 | |
3179 | |
2946 | if (fs_fd >= 0) |
3180 | if (fs_fd >= 0) |
2947 | { |
3181 | { |
|
|
3182 | fd_intern (fs_fd); |
2948 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3183 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2949 | ev_set_priority (&fs_w, EV_MAXPRI); |
3184 | ev_set_priority (&fs_w, EV_MAXPRI); |
2950 | ev_io_start (EV_A_ &fs_w); |
3185 | ev_io_start (EV_A_ &fs_w); |
|
|
3186 | ev_unref (EV_A); |
2951 | } |
3187 | } |
2952 | } |
3188 | } |
2953 | |
3189 | |
2954 | inline_size void |
3190 | inline_size void |
2955 | infy_fork (EV_P) |
3191 | infy_fork (EV_P) |
… | |
… | |
2957 | int slot; |
3193 | int slot; |
2958 | |
3194 | |
2959 | if (fs_fd < 0) |
3195 | if (fs_fd < 0) |
2960 | return; |
3196 | return; |
2961 | |
3197 | |
|
|
3198 | ev_ref (EV_A); |
|
|
3199 | ev_io_stop (EV_A_ &fs_w); |
2962 | close (fs_fd); |
3200 | close (fs_fd); |
2963 | fs_fd = inotify_init (); |
3201 | fs_fd = infy_newfd (); |
2964 | |
3202 | |
|
|
3203 | if (fs_fd >= 0) |
|
|
3204 | { |
|
|
3205 | fd_intern (fs_fd); |
|
|
3206 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3207 | ev_io_start (EV_A_ &fs_w); |
|
|
3208 | ev_unref (EV_A); |
|
|
3209 | } |
|
|
3210 | |
2965 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3211 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2966 | { |
3212 | { |
2967 | WL w_ = fs_hash [slot].head; |
3213 | WL w_ = fs_hash [slot].head; |
2968 | fs_hash [slot].head = 0; |
3214 | fs_hash [slot].head = 0; |
2969 | |
3215 | |
2970 | while (w_) |
3216 | while (w_) |
… | |
… | |
2975 | w->wd = -1; |
3221 | w->wd = -1; |
2976 | |
3222 | |
2977 | if (fs_fd >= 0) |
3223 | if (fs_fd >= 0) |
2978 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3224 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2979 | else |
3225 | else |
|
|
3226 | { |
|
|
3227 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3228 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2980 | ev_timer_again (EV_A_ &w->timer); |
3229 | ev_timer_again (EV_A_ &w->timer); |
|
|
3230 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3231 | } |
2981 | } |
3232 | } |
2982 | } |
3233 | } |
2983 | } |
3234 | } |
2984 | |
3235 | |
2985 | #endif |
3236 | #endif |
… | |
… | |
3002 | static void noinline |
3253 | static void noinline |
3003 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3254 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3004 | { |
3255 | { |
3005 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3256 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3006 | |
3257 | |
3007 | /* we copy this here each the time so that */ |
3258 | ev_statdata prev = w->attr; |
3008 | /* prev has the old value when the callback gets invoked */ |
|
|
3009 | w->prev = w->attr; |
|
|
3010 | ev_stat_stat (EV_A_ w); |
3259 | ev_stat_stat (EV_A_ w); |
3011 | |
3260 | |
3012 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3261 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3013 | if ( |
3262 | if ( |
3014 | w->prev.st_dev != w->attr.st_dev |
3263 | prev.st_dev != w->attr.st_dev |
3015 | || w->prev.st_ino != w->attr.st_ino |
3264 | || prev.st_ino != w->attr.st_ino |
3016 | || w->prev.st_mode != w->attr.st_mode |
3265 | || prev.st_mode != w->attr.st_mode |
3017 | || w->prev.st_nlink != w->attr.st_nlink |
3266 | || prev.st_nlink != w->attr.st_nlink |
3018 | || w->prev.st_uid != w->attr.st_uid |
3267 | || prev.st_uid != w->attr.st_uid |
3019 | || w->prev.st_gid != w->attr.st_gid |
3268 | || prev.st_gid != w->attr.st_gid |
3020 | || w->prev.st_rdev != w->attr.st_rdev |
3269 | || prev.st_rdev != w->attr.st_rdev |
3021 | || w->prev.st_size != w->attr.st_size |
3270 | || prev.st_size != w->attr.st_size |
3022 | || w->prev.st_atime != w->attr.st_atime |
3271 | || prev.st_atime != w->attr.st_atime |
3023 | || w->prev.st_mtime != w->attr.st_mtime |
3272 | || prev.st_mtime != w->attr.st_mtime |
3024 | || w->prev.st_ctime != w->attr.st_ctime |
3273 | || prev.st_ctime != w->attr.st_ctime |
3025 | ) { |
3274 | ) { |
|
|
3275 | /* we only update w->prev on actual differences */ |
|
|
3276 | /* in case we test more often than invoke the callback, */ |
|
|
3277 | /* to ensure that prev is always different to attr */ |
|
|
3278 | w->prev = prev; |
|
|
3279 | |
3026 | #if EV_USE_INOTIFY |
3280 | #if EV_USE_INOTIFY |
3027 | if (fs_fd >= 0) |
3281 | if (fs_fd >= 0) |
3028 | { |
3282 | { |
3029 | infy_del (EV_A_ w); |
3283 | infy_del (EV_A_ w); |
3030 | infy_add (EV_A_ w); |
3284 | infy_add (EV_A_ w); |
… | |
… | |
3055 | |
3309 | |
3056 | if (fs_fd >= 0) |
3310 | if (fs_fd >= 0) |
3057 | infy_add (EV_A_ w); |
3311 | infy_add (EV_A_ w); |
3058 | else |
3312 | else |
3059 | #endif |
3313 | #endif |
|
|
3314 | { |
3060 | ev_timer_again (EV_A_ &w->timer); |
3315 | ev_timer_again (EV_A_ &w->timer); |
|
|
3316 | ev_unref (EV_A); |
|
|
3317 | } |
3061 | |
3318 | |
3062 | ev_start (EV_A_ (W)w, 1); |
3319 | ev_start (EV_A_ (W)w, 1); |
3063 | |
3320 | |
3064 | EV_FREQUENT_CHECK; |
3321 | EV_FREQUENT_CHECK; |
3065 | } |
3322 | } |
… | |
… | |
3074 | EV_FREQUENT_CHECK; |
3331 | EV_FREQUENT_CHECK; |
3075 | |
3332 | |
3076 | #if EV_USE_INOTIFY |
3333 | #if EV_USE_INOTIFY |
3077 | infy_del (EV_A_ w); |
3334 | infy_del (EV_A_ w); |
3078 | #endif |
3335 | #endif |
|
|
3336 | |
|
|
3337 | if (ev_is_active (&w->timer)) |
|
|
3338 | { |
|
|
3339 | ev_ref (EV_A); |
3079 | ev_timer_stop (EV_A_ &w->timer); |
3340 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3341 | } |
3080 | |
3342 | |
3081 | ev_stop (EV_A_ (W)w); |
3343 | ev_stop (EV_A_ (W)w); |
3082 | |
3344 | |
3083 | EV_FREQUENT_CHECK; |
3345 | EV_FREQUENT_CHECK; |
3084 | } |
3346 | } |
… | |
… | |
3129 | |
3391 | |
3130 | EV_FREQUENT_CHECK; |
3392 | EV_FREQUENT_CHECK; |
3131 | } |
3393 | } |
3132 | #endif |
3394 | #endif |
3133 | |
3395 | |
|
|
3396 | #if EV_PREPARE_ENABLE |
3134 | void |
3397 | void |
3135 | ev_prepare_start (EV_P_ ev_prepare *w) |
3398 | ev_prepare_start (EV_P_ ev_prepare *w) |
3136 | { |
3399 | { |
3137 | if (expect_false (ev_is_active (w))) |
3400 | if (expect_false (ev_is_active (w))) |
3138 | return; |
3401 | return; |
… | |
… | |
3164 | |
3427 | |
3165 | ev_stop (EV_A_ (W)w); |
3428 | ev_stop (EV_A_ (W)w); |
3166 | |
3429 | |
3167 | EV_FREQUENT_CHECK; |
3430 | EV_FREQUENT_CHECK; |
3168 | } |
3431 | } |
|
|
3432 | #endif |
3169 | |
3433 | |
|
|
3434 | #if EV_CHECK_ENABLE |
3170 | void |
3435 | void |
3171 | ev_check_start (EV_P_ ev_check *w) |
3436 | ev_check_start (EV_P_ ev_check *w) |
3172 | { |
3437 | { |
3173 | if (expect_false (ev_is_active (w))) |
3438 | if (expect_false (ev_is_active (w))) |
3174 | return; |
3439 | return; |
… | |
… | |
3200 | |
3465 | |
3201 | ev_stop (EV_A_ (W)w); |
3466 | ev_stop (EV_A_ (W)w); |
3202 | |
3467 | |
3203 | EV_FREQUENT_CHECK; |
3468 | EV_FREQUENT_CHECK; |
3204 | } |
3469 | } |
|
|
3470 | #endif |
3205 | |
3471 | |
3206 | #if EV_EMBED_ENABLE |
3472 | #if EV_EMBED_ENABLE |
3207 | void noinline |
3473 | void noinline |
3208 | ev_embed_sweep (EV_P_ ev_embed *w) |
3474 | ev_embed_sweep (EV_P_ ev_embed *w) |
3209 | { |
3475 | { |
3210 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3476 | ev_run (w->other, EVRUN_NOWAIT); |
3211 | } |
3477 | } |
3212 | |
3478 | |
3213 | static void |
3479 | static void |
3214 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3480 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3215 | { |
3481 | { |
3216 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3482 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3217 | |
3483 | |
3218 | if (ev_cb (w)) |
3484 | if (ev_cb (w)) |
3219 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3485 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3220 | else |
3486 | else |
3221 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3487 | ev_run (w->other, EVRUN_NOWAIT); |
3222 | } |
3488 | } |
3223 | |
3489 | |
3224 | static void |
3490 | static void |
3225 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3491 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3226 | { |
3492 | { |
3227 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3493 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3228 | |
3494 | |
3229 | { |
3495 | { |
3230 | struct ev_loop *loop = w->other; |
3496 | EV_P = w->other; |
3231 | |
3497 | |
3232 | while (fdchangecnt) |
3498 | while (fdchangecnt) |
3233 | { |
3499 | { |
3234 | fd_reify (EV_A); |
3500 | fd_reify (EV_A); |
3235 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3501 | ev_run (EV_A_ EVRUN_NOWAIT); |
3236 | } |
3502 | } |
3237 | } |
3503 | } |
3238 | } |
3504 | } |
3239 | |
3505 | |
3240 | static void |
3506 | static void |
… | |
… | |
3243 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3509 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3244 | |
3510 | |
3245 | ev_embed_stop (EV_A_ w); |
3511 | ev_embed_stop (EV_A_ w); |
3246 | |
3512 | |
3247 | { |
3513 | { |
3248 | struct ev_loop *loop = w->other; |
3514 | EV_P = w->other; |
3249 | |
3515 | |
3250 | ev_loop_fork (EV_A); |
3516 | ev_loop_fork (EV_A); |
3251 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3517 | ev_run (EV_A_ EVRUN_NOWAIT); |
3252 | } |
3518 | } |
3253 | |
3519 | |
3254 | ev_embed_start (EV_A_ w); |
3520 | ev_embed_start (EV_A_ w); |
3255 | } |
3521 | } |
3256 | |
3522 | |
… | |
… | |
3267 | { |
3533 | { |
3268 | if (expect_false (ev_is_active (w))) |
3534 | if (expect_false (ev_is_active (w))) |
3269 | return; |
3535 | return; |
3270 | |
3536 | |
3271 | { |
3537 | { |
3272 | struct ev_loop *loop = w->other; |
3538 | EV_P = w->other; |
3273 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3539 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3274 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3540 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3275 | } |
3541 | } |
3276 | |
3542 | |
3277 | EV_FREQUENT_CHECK; |
3543 | EV_FREQUENT_CHECK; |
… | |
… | |
3304 | |
3570 | |
3305 | ev_io_stop (EV_A_ &w->io); |
3571 | ev_io_stop (EV_A_ &w->io); |
3306 | ev_prepare_stop (EV_A_ &w->prepare); |
3572 | ev_prepare_stop (EV_A_ &w->prepare); |
3307 | ev_fork_stop (EV_A_ &w->fork); |
3573 | ev_fork_stop (EV_A_ &w->fork); |
3308 | |
3574 | |
|
|
3575 | ev_stop (EV_A_ (W)w); |
|
|
3576 | |
3309 | EV_FREQUENT_CHECK; |
3577 | EV_FREQUENT_CHECK; |
3310 | } |
3578 | } |
3311 | #endif |
3579 | #endif |
3312 | |
3580 | |
3313 | #if EV_FORK_ENABLE |
3581 | #if EV_FORK_ENABLE |
… | |
… | |
3346 | |
3614 | |
3347 | EV_FREQUENT_CHECK; |
3615 | EV_FREQUENT_CHECK; |
3348 | } |
3616 | } |
3349 | #endif |
3617 | #endif |
3350 | |
3618 | |
3351 | #if EV_ASYNC_ENABLE |
3619 | #if EV_CLEANUP_ENABLE |
3352 | void |
3620 | void |
3353 | ev_async_start (EV_P_ ev_async *w) |
3621 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3354 | { |
3622 | { |
3355 | if (expect_false (ev_is_active (w))) |
3623 | if (expect_false (ev_is_active (w))) |
3356 | return; |
3624 | return; |
|
|
3625 | |
|
|
3626 | EV_FREQUENT_CHECK; |
|
|
3627 | |
|
|
3628 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3629 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3630 | cleanups [cleanupcnt - 1] = w; |
|
|
3631 | |
|
|
3632 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3633 | ev_unref (EV_A); |
|
|
3634 | EV_FREQUENT_CHECK; |
|
|
3635 | } |
|
|
3636 | |
|
|
3637 | void |
|
|
3638 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3639 | { |
|
|
3640 | clear_pending (EV_A_ (W)w); |
|
|
3641 | if (expect_false (!ev_is_active (w))) |
|
|
3642 | return; |
|
|
3643 | |
|
|
3644 | EV_FREQUENT_CHECK; |
|
|
3645 | ev_ref (EV_A); |
|
|
3646 | |
|
|
3647 | { |
|
|
3648 | int active = ev_active (w); |
|
|
3649 | |
|
|
3650 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3651 | ev_active (cleanups [active - 1]) = active; |
|
|
3652 | } |
|
|
3653 | |
|
|
3654 | ev_stop (EV_A_ (W)w); |
|
|
3655 | |
|
|
3656 | EV_FREQUENT_CHECK; |
|
|
3657 | } |
|
|
3658 | #endif |
|
|
3659 | |
|
|
3660 | #if EV_ASYNC_ENABLE |
|
|
3661 | void |
|
|
3662 | ev_async_start (EV_P_ ev_async *w) |
|
|
3663 | { |
|
|
3664 | if (expect_false (ev_is_active (w))) |
|
|
3665 | return; |
|
|
3666 | |
|
|
3667 | w->sent = 0; |
3357 | |
3668 | |
3358 | evpipe_init (EV_A); |
3669 | evpipe_init (EV_A); |
3359 | |
3670 | |
3360 | EV_FREQUENT_CHECK; |
3671 | EV_FREQUENT_CHECK; |
3361 | |
3672 | |
… | |
… | |
3389 | |
3700 | |
3390 | void |
3701 | void |
3391 | ev_async_send (EV_P_ ev_async *w) |
3702 | ev_async_send (EV_P_ ev_async *w) |
3392 | { |
3703 | { |
3393 | w->sent = 1; |
3704 | w->sent = 1; |
3394 | evpipe_write (EV_A_ &gotasync); |
3705 | evpipe_write (EV_A_ &async_pending); |
3395 | } |
3706 | } |
3396 | #endif |
3707 | #endif |
3397 | |
3708 | |
3398 | /*****************************************************************************/ |
3709 | /*****************************************************************************/ |
3399 | |
3710 | |
… | |
… | |
3439 | { |
3750 | { |
3440 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3751 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3441 | |
3752 | |
3442 | if (expect_false (!once)) |
3753 | if (expect_false (!once)) |
3443 | { |
3754 | { |
3444 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3755 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3445 | return; |
3756 | return; |
3446 | } |
3757 | } |
3447 | |
3758 | |
3448 | once->cb = cb; |
3759 | once->cb = cb; |
3449 | once->arg = arg; |
3760 | once->arg = arg; |
… | |
… | |
3536 | if (types & EV_ASYNC) |
3847 | if (types & EV_ASYNC) |
3537 | for (i = asynccnt; i--; ) |
3848 | for (i = asynccnt; i--; ) |
3538 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3849 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3539 | #endif |
3850 | #endif |
3540 | |
3851 | |
|
|
3852 | #if EV_PREPARE_ENABLE |
3541 | if (types & EV_PREPARE) |
3853 | if (types & EV_PREPARE) |
3542 | for (i = preparecnt; i--; ) |
3854 | for (i = preparecnt; i--; ) |
3543 | #if EV_EMBED_ENABLE |
3855 | # if EV_EMBED_ENABLE |
3544 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3856 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3545 | #endif |
3857 | # endif |
3546 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3858 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3859 | #endif |
3547 | |
3860 | |
|
|
3861 | #if EV_CHECK_ENABLE |
3548 | if (types & EV_CHECK) |
3862 | if (types & EV_CHECK) |
3549 | for (i = checkcnt; i--; ) |
3863 | for (i = checkcnt; i--; ) |
3550 | cb (EV_A_ EV_CHECK, checks [i]); |
3864 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3865 | #endif |
3551 | |
3866 | |
|
|
3867 | #if EV_SIGNAL_ENABLE |
3552 | if (types & EV_SIGNAL) |
3868 | if (types & EV_SIGNAL) |
3553 | for (i = 0; i < signalmax; ++i) |
3869 | for (i = 0; i < EV_NSIG - 1; ++i) |
3554 | for (wl = signals [i].head; wl; ) |
3870 | for (wl = signals [i].head; wl; ) |
3555 | { |
3871 | { |
3556 | wn = wl->next; |
3872 | wn = wl->next; |
3557 | cb (EV_A_ EV_SIGNAL, wl); |
3873 | cb (EV_A_ EV_SIGNAL, wl); |
3558 | wl = wn; |
3874 | wl = wn; |
3559 | } |
3875 | } |
|
|
3876 | #endif |
3560 | |
3877 | |
|
|
3878 | #if EV_CHILD_ENABLE |
3561 | if (types & EV_CHILD) |
3879 | if (types & EV_CHILD) |
3562 | for (i = EV_PID_HASHSIZE; i--; ) |
3880 | for (i = (EV_PID_HASHSIZE); i--; ) |
3563 | for (wl = childs [i]; wl; ) |
3881 | for (wl = childs [i]; wl; ) |
3564 | { |
3882 | { |
3565 | wn = wl->next; |
3883 | wn = wl->next; |
3566 | cb (EV_A_ EV_CHILD, wl); |
3884 | cb (EV_A_ EV_CHILD, wl); |
3567 | wl = wn; |
3885 | wl = wn; |
3568 | } |
3886 | } |
|
|
3887 | #endif |
3569 | /* EV_STAT 0x00001000 /* stat data changed */ |
3888 | /* EV_STAT 0x00001000 /* stat data changed */ |
3570 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3889 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3571 | } |
3890 | } |
3572 | #endif |
3891 | #endif |
3573 | |
3892 | |
3574 | #if EV_MULTIPLICITY |
3893 | #if EV_MULTIPLICITY |
3575 | #include "ev_wrap.h" |
3894 | #include "ev_wrap.h" |
3576 | #endif |
3895 | #endif |
3577 | |
3896 | |
3578 | #ifdef __cplusplus |
3897 | EV_CPP(}) |
3579 | } |
|
|
3580 | #endif |
|
|
3581 | |
3898 | |