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 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 |
|
|
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 | |
|
|
87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
88 | # ifndef EV_USE_SELECT |
|
|
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 |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
99 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
100 | # else |
|
|
101 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
103 | # endif |
105 | |
104 | |
106 | # ifndef EV_USE_EPOLL |
|
|
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 |
|
|
111 | # endif |
108 | # endif |
|
|
109 | # else |
|
|
110 | # undef EV_USE_EPOLL |
|
|
111 | # define EV_USE_EPOLL 0 |
112 | # endif |
112 | # endif |
113 | |
113 | |
|
|
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 |
|
|
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
117 | # endif |
|
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118 | # else |
|
|
119 | # undef EV_USE_KQUEUE |
|
|
120 | # define EV_USE_KQUEUE 0 |
120 | # endif |
121 | # endif |
121 | |
122 | |
122 | # ifndef EV_USE_PORT |
|
|
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 |
|
|
127 | # else |
|
|
128 | # undef EV_USE_PORT |
|
|
129 | # define EV_USE_PORT 0 |
128 | # endif |
130 | # endif |
129 | |
131 | |
130 | # ifndef EV_USE_INOTIFY |
|
|
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 |
|
|
137 | # undef EV_USE_INOTIFY |
|
|
138 | # define EV_USE_INOTIFY 0 |
136 | # endif |
139 | # endif |
137 | |
140 | |
|
|
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
138 | # ifndef EV_USE_EVENTFD |
142 | # ifndef EV_USE_SIGNALFD |
139 | # if HAVE_EVENTFD |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
140 | # define EV_USE_EVENTFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_EVENTFD 0 |
|
|
143 | # endif |
144 | # endif |
|
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145 | # else |
|
|
146 | # undef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD 0 |
|
|
148 | # endif |
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149 | |
|
|
150 | # if HAVE_EVENTFD |
|
|
151 | # ifndef EV_USE_EVENTFD |
|
|
152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
153 | # endif |
|
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154 | # else |
|
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155 | # undef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD 0 |
144 | # endif |
157 | # endif |
145 | |
158 | |
146 | #endif |
159 | #endif |
147 | |
160 | |
148 | #include <math.h> |
161 | #include <math.h> |
149 | #include <stdlib.h> |
162 | #include <stdlib.h> |
|
|
163 | #include <string.h> |
150 | #include <fcntl.h> |
164 | #include <fcntl.h> |
151 | #include <stddef.h> |
165 | #include <stddef.h> |
152 | |
166 | |
153 | #include <stdio.h> |
167 | #include <stdio.h> |
154 | |
168 | |
155 | #include <assert.h> |
169 | #include <assert.h> |
156 | #include <errno.h> |
170 | #include <errno.h> |
157 | #include <sys/types.h> |
171 | #include <sys/types.h> |
158 | #include <time.h> |
172 | #include <time.h> |
|
|
173 | #include <limits.h> |
159 | |
174 | |
160 | #include <signal.h> |
175 | #include <signal.h> |
161 | |
176 | |
162 | #ifdef EV_H |
177 | #ifdef EV_H |
163 | # include EV_H |
178 | # include EV_H |
164 | #else |
179 | #else |
165 | # include "ev.h" |
180 | # include "ev.h" |
166 | #endif |
181 | #endif |
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|
182 | |
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183 | EV_CPP(extern "C" {) |
167 | |
184 | |
168 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
169 | # include <sys/time.h> |
186 | # include <sys/time.h> |
170 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
171 | # include <unistd.h> |
188 | # include <unistd.h> |
… | |
… | |
174 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
175 | # include <windows.h> |
192 | # include <windows.h> |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
178 | # endif |
195 | # endif |
|
|
196 | # undef EV_AVOID_STDIO |
179 | #endif |
197 | #endif |
|
|
198 | |
|
|
199 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
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 |
|
|
202 | * ordered to have a vacuum, or they do anything for money. |
|
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203 | * This might help. Or not. |
|
|
204 | */ |
|
|
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
180 | |
206 | |
181 | /* 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 */ |
|
|
210 | #if defined (EV_NSIG) |
|
|
211 | /* use what's provided */ |
|
|
212 | #elif defined (NSIG) |
|
|
213 | # define EV_NSIG (NSIG) |
|
|
214 | #elif defined(_NSIG) |
|
|
215 | # define EV_NSIG (_NSIG) |
|
|
216 | #elif defined (SIGMAX) |
|
|
217 | # define EV_NSIG (SIGMAX+1) |
|
|
218 | #elif defined (SIG_MAX) |
|
|
219 | # define EV_NSIG (SIG_MAX+1) |
|
|
220 | #elif defined (_SIG_MAX) |
|
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221 | # define EV_NSIG (_SIG_MAX+1) |
|
|
222 | #elif defined (MAXSIG) |
|
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223 | # define EV_NSIG (MAXSIG+1) |
|
|
224 | #elif defined (MAX_SIG) |
|
|
225 | # define EV_NSIG (MAX_SIG+1) |
|
|
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 |
|
|
235 | #endif |
182 | |
236 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
238 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
186 | # else |
240 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
188 | # endif |
242 | # endif |
189 | #endif |
243 | #endif |
190 | |
244 | |
191 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
193 | # define EV_USE_MONOTONIC 1 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
194 | # else |
248 | # else |
195 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
196 | # endif |
250 | # endif |
197 | #endif |
251 | #endif |
198 | |
252 | |
… | |
… | |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
201 | #endif |
255 | #endif |
202 | |
256 | |
203 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
204 | # if _POSIX_C_SOURCE >= 199309L |
258 | # if _POSIX_C_SOURCE >= 199309L |
205 | # define EV_USE_NANOSLEEP 1 |
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
206 | # else |
260 | # else |
207 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
208 | # endif |
262 | # endif |
209 | #endif |
263 | #endif |
210 | |
264 | |
211 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
212 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
213 | #endif |
267 | #endif |
214 | |
268 | |
215 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
216 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
217 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
218 | # else |
272 | # else |
219 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
220 | # endif |
274 | # endif |
221 | #endif |
275 | #endif |
222 | |
276 | |
223 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
224 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
225 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
226 | # else |
280 | # else |
227 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
228 | # endif |
282 | # endif |
229 | #endif |
283 | #endif |
230 | |
284 | |
… | |
… | |
236 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
237 | #endif |
291 | #endif |
238 | |
292 | |
239 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
240 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
241 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
242 | # else |
296 | # else |
243 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
244 | # endif |
298 | # endif |
245 | #endif |
299 | #endif |
246 | |
300 | |
247 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
248 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
249 | # define EV_PID_HASHSIZE 1 |
|
|
250 | # else |
|
|
251 | # define EV_PID_HASHSIZE 16 |
|
|
252 | # endif |
|
|
253 | #endif |
303 | #endif |
254 | |
304 | |
255 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
256 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
257 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
258 | # else |
|
|
259 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
260 | # endif |
|
|
261 | #endif |
307 | #endif |
262 | |
308 | |
263 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
266 | # else |
312 | # else |
267 | # define EV_USE_EVENTFD 0 |
313 | # define EV_USE_EVENTFD 0 |
|
|
314 | # endif |
|
|
315 | #endif |
|
|
316 | |
|
|
317 | #ifndef EV_USE_SIGNALFD |
|
|
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
320 | # else |
|
|
321 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
322 | # endif |
269 | #endif |
323 | #endif |
270 | |
324 | |
271 | #if 0 /* debugging */ |
325 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
326 | # define EV_VERIFY 3 |
273 | # define EV_USE_4HEAP 1 |
327 | # define EV_USE_4HEAP 1 |
274 | # define EV_HEAP_CACHE_AT 1 |
328 | # define EV_HEAP_CACHE_AT 1 |
275 | #endif |
329 | #endif |
276 | |
330 | |
277 | #ifndef EV_VERIFY |
331 | #ifndef EV_VERIFY |
278 | # define EV_VERIFY !EV_MINIMAL |
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
279 | #endif |
333 | #endif |
280 | |
334 | |
281 | #ifndef EV_USE_4HEAP |
335 | #ifndef EV_USE_4HEAP |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
283 | #endif |
337 | #endif |
284 | |
338 | |
285 | #ifndef EV_HEAP_CACHE_AT |
339 | #ifndef EV_HEAP_CACHE_AT |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
287 | #endif |
|
|
288 | |
|
|
289 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
290 | |
|
|
291 | #ifndef CLOCK_MONOTONIC |
|
|
292 | # undef EV_USE_MONOTONIC |
|
|
293 | # define EV_USE_MONOTONIC 0 |
|
|
294 | #endif |
|
|
295 | |
|
|
296 | #ifndef CLOCK_REALTIME |
|
|
297 | # undef EV_USE_REALTIME |
|
|
298 | # define EV_USE_REALTIME 0 |
|
|
299 | #endif |
|
|
300 | |
|
|
301 | #if !EV_STAT_ENABLE |
|
|
302 | # undef EV_USE_INOTIFY |
|
|
303 | # define EV_USE_INOTIFY 0 |
|
|
304 | #endif |
|
|
305 | |
|
|
306 | #if !EV_USE_NANOSLEEP |
|
|
307 | # ifndef _WIN32 |
|
|
308 | # include <sys/select.h> |
|
|
309 | # endif |
|
|
310 | #endif |
|
|
311 | |
|
|
312 | #if EV_USE_INOTIFY |
|
|
313 | # include <sys/utsname.h> |
|
|
314 | # include <sys/statfs.h> |
|
|
315 | # include <sys/inotify.h> |
|
|
316 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
317 | # ifndef IN_DONT_FOLLOW |
|
|
318 | # undef EV_USE_INOTIFY |
|
|
319 | # define EV_USE_INOTIFY 0 |
|
|
320 | # endif |
|
|
321 | #endif |
|
|
322 | |
|
|
323 | #if EV_SELECT_IS_WINSOCKET |
|
|
324 | # include <winsock.h> |
|
|
325 | #endif |
341 | #endif |
326 | |
342 | |
327 | /* 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, */ |
328 | /* which makes programs even slower. might work on other unices, too. */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
329 | #if EV_USE_CLOCK_SYSCALL |
345 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
336 | # undef EV_USE_CLOCK_SYSCALL |
352 | # undef EV_USE_CLOCK_SYSCALL |
337 | # define EV_USE_CLOCK_SYSCALL 0 |
353 | # define EV_USE_CLOCK_SYSCALL 0 |
338 | # endif |
354 | # endif |
339 | #endif |
355 | #endif |
340 | |
356 | |
|
|
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
358 | |
|
|
359 | #ifdef _AIX |
|
|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
|
|
364 | |
|
|
365 | #ifndef CLOCK_MONOTONIC |
|
|
366 | # undef EV_USE_MONOTONIC |
|
|
367 | # define EV_USE_MONOTONIC 0 |
|
|
368 | #endif |
|
|
369 | |
|
|
370 | #ifndef CLOCK_REALTIME |
|
|
371 | # undef EV_USE_REALTIME |
|
|
372 | # define EV_USE_REALTIME 0 |
|
|
373 | #endif |
|
|
374 | |
|
|
375 | #if !EV_STAT_ENABLE |
|
|
376 | # undef EV_USE_INOTIFY |
|
|
377 | # define EV_USE_INOTIFY 0 |
|
|
378 | #endif |
|
|
379 | |
|
|
380 | #if !EV_USE_NANOSLEEP |
|
|
381 | # ifndef _WIN32 |
|
|
382 | # include <sys/select.h> |
|
|
383 | # endif |
|
|
384 | #endif |
|
|
385 | |
|
|
386 | #if EV_USE_INOTIFY |
|
|
387 | # include <sys/statfs.h> |
|
|
388 | # include <sys/inotify.h> |
|
|
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
390 | # ifndef IN_DONT_FOLLOW |
|
|
391 | # undef EV_USE_INOTIFY |
|
|
392 | # define EV_USE_INOTIFY 0 |
|
|
393 | # endif |
|
|
394 | #endif |
|
|
395 | |
|
|
396 | #if EV_SELECT_IS_WINSOCKET |
|
|
397 | # include <winsock.h> |
|
|
398 | #endif |
|
|
399 | |
341 | #if EV_USE_EVENTFD |
400 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
401 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
402 | # include <stdint.h> |
344 | # ifdef __cplusplus |
403 | # ifndef EFD_NONBLOCK |
345 | extern "C" { |
404 | # define EFD_NONBLOCK O_NONBLOCK |
346 | # endif |
405 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
406 | # ifndef EFD_CLOEXEC |
348 | # ifdef __cplusplus |
407 | # ifdef O_CLOEXEC |
349 | } |
408 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
409 | # else |
|
|
410 | # define EFD_CLOEXEC 02000000 |
|
|
411 | # endif |
350 | # endif |
412 | # endif |
|
|
413 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
414 | #endif |
|
|
415 | |
|
|
416 | #if EV_USE_SIGNALFD |
|
|
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
418 | # include <stdint.h> |
|
|
419 | # ifndef SFD_NONBLOCK |
|
|
420 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
421 | # endif |
|
|
422 | # ifndef SFD_CLOEXEC |
|
|
423 | # ifdef O_CLOEXEC |
|
|
424 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
425 | # else |
|
|
426 | # define SFD_CLOEXEC 02000000 |
|
|
427 | # endif |
|
|
428 | # endif |
|
|
429 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
430 | |
|
|
431 | struct signalfd_siginfo |
|
|
432 | { |
|
|
433 | uint32_t ssi_signo; |
|
|
434 | char pad[128 - sizeof (uint32_t)]; |
|
|
435 | }; |
351 | #endif |
436 | #endif |
352 | |
437 | |
353 | /**/ |
438 | /**/ |
354 | |
439 | |
355 | #if EV_VERIFY >= 3 |
440 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
441 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
357 | #else |
442 | #else |
358 | # define EV_FREQUENT_CHECK do { } while (0) |
443 | # define EV_FREQUENT_CHECK do { } while (0) |
359 | #endif |
444 | #endif |
360 | |
445 | |
361 | /* |
446 | /* |
… | |
… | |
368 | */ |
453 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
455 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
458 | |
|
|
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
374 | |
461 | |
375 | #if __GNUC__ >= 4 |
462 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
464 | # define noinline __attribute__ ((noinline)) |
378 | #else |
465 | #else |
… | |
… | |
385 | |
472 | |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
387 | #define expect_true(expr) expect ((expr) != 0, 1) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
388 | #define inline_size static inline |
475 | #define inline_size static inline |
389 | |
476 | |
390 | #if EV_MINIMAL |
477 | #if EV_FEATURE_CODE |
|
|
478 | # define inline_speed static inline |
|
|
479 | #else |
391 | # define inline_speed static noinline |
480 | # define inline_speed static noinline |
|
|
481 | #endif |
|
|
482 | |
|
|
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
484 | |
|
|
485 | #if EV_MINPRI == EV_MAXPRI |
|
|
486 | # define ABSPRI(w) (((W)w), 0) |
392 | #else |
487 | #else |
393 | # define inline_speed static inline |
|
|
394 | #endif |
|
|
395 | |
|
|
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
397 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
488 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
489 | #endif |
398 | |
490 | |
399 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
491 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
400 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
492 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
401 | |
493 | |
402 | typedef ev_watcher *W; |
494 | typedef ev_watcher *W; |
… | |
… | |
406 | #define ev_active(w) ((W)(w))->active |
498 | #define ev_active(w) ((W)(w))->active |
407 | #define ev_at(w) ((WT)(w))->at |
499 | #define ev_at(w) ((WT)(w))->at |
408 | |
500 | |
409 | #if EV_USE_REALTIME |
501 | #if EV_USE_REALTIME |
410 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
502 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
411 | /* giving it a reasonably high chance of working on typical architetcures */ |
503 | /* giving it a reasonably high chance of working on typical architectures */ |
412 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
504 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
413 | #endif |
505 | #endif |
414 | |
506 | |
415 | #if EV_USE_MONOTONIC |
507 | #if EV_USE_MONOTONIC |
416 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
508 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
417 | #endif |
509 | #endif |
418 | |
510 | |
|
|
511 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
512 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
513 | #endif |
|
|
514 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
515 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
516 | #endif |
|
|
517 | #ifndef EV_WIN32_CLOSE_FD |
|
|
518 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
519 | #endif |
|
|
520 | |
419 | #ifdef _WIN32 |
521 | #ifdef _WIN32 |
420 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
421 | #endif |
523 | #endif |
422 | |
524 | |
423 | /*****************************************************************************/ |
525 | /*****************************************************************************/ |
|
|
526 | |
|
|
527 | #ifdef __linux |
|
|
528 | # include <sys/utsname.h> |
|
|
529 | #endif |
|
|
530 | |
|
|
531 | static unsigned int noinline |
|
|
532 | ev_linux_version (void) |
|
|
533 | { |
|
|
534 | #ifdef __linux |
|
|
535 | struct utsname buf; |
|
|
536 | unsigned int v; |
|
|
537 | int i; |
|
|
538 | char *p = buf.release; |
|
|
539 | |
|
|
540 | if (uname (&buf)) |
|
|
541 | return 0; |
|
|
542 | |
|
|
543 | for (i = 3+1; --i; ) |
|
|
544 | { |
|
|
545 | unsigned int c = 0; |
|
|
546 | |
|
|
547 | for (;;) |
|
|
548 | { |
|
|
549 | if (*p >= '0' && *p <= '9') |
|
|
550 | c = c * 10 + *p++ - '0'; |
|
|
551 | else |
|
|
552 | { |
|
|
553 | p += *p == '.'; |
|
|
554 | break; |
|
|
555 | } |
|
|
556 | } |
|
|
557 | |
|
|
558 | v = (v << 8) | c; |
|
|
559 | } |
|
|
560 | |
|
|
561 | return v; |
|
|
562 | #else |
|
|
563 | return 0; |
|
|
564 | #endif |
|
|
565 | } |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
|
|
568 | |
|
|
569 | #if EV_AVOID_STDIO |
|
|
570 | static void noinline |
|
|
571 | ev_printerr (const char *msg) |
|
|
572 | { |
|
|
573 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
574 | } |
|
|
575 | #endif |
424 | |
576 | |
425 | static void (*syserr_cb)(const char *msg); |
577 | static void (*syserr_cb)(const char *msg); |
426 | |
578 | |
427 | void |
579 | void |
428 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
438 | |
590 | |
439 | if (syserr_cb) |
591 | if (syserr_cb) |
440 | syserr_cb (msg); |
592 | syserr_cb (msg); |
441 | else |
593 | else |
442 | { |
594 | { |
|
|
595 | #if EV_AVOID_STDIO |
|
|
596 | const char *err = strerror (errno); |
|
|
597 | |
|
|
598 | ev_printerr (msg); |
|
|
599 | ev_printerr (": "); |
|
|
600 | ev_printerr (err); |
|
|
601 | ev_printerr ("\n"); |
|
|
602 | #else |
443 | perror (msg); |
603 | perror (msg); |
|
|
604 | #endif |
444 | abort (); |
605 | abort (); |
445 | } |
606 | } |
446 | } |
607 | } |
447 | |
608 | |
448 | static void * |
609 | static void * |
449 | ev_realloc_emul (void *ptr, long size) |
610 | ev_realloc_emul (void *ptr, long size) |
450 | { |
611 | { |
|
|
612 | #if __GLIBC__ |
|
|
613 | return realloc (ptr, size); |
|
|
614 | #else |
451 | /* some systems, notably openbsd and darwin, fail to properly |
615 | /* some systems, notably openbsd and darwin, fail to properly |
452 | * implement realloc (x, 0) (as required by both ansi c-98 and |
616 | * implement realloc (x, 0) (as required by both ansi c-89 and |
453 | * the single unix specification, so work around them here. |
617 | * the single unix specification, so work around them here. |
454 | */ |
618 | */ |
455 | |
619 | |
456 | if (size) |
620 | if (size) |
457 | return realloc (ptr, size); |
621 | return realloc (ptr, size); |
458 | |
622 | |
459 | free (ptr); |
623 | free (ptr); |
460 | return 0; |
624 | return 0; |
|
|
625 | #endif |
461 | } |
626 | } |
462 | |
627 | |
463 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
628 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
464 | |
629 | |
465 | void |
630 | void |
… | |
… | |
473 | { |
638 | { |
474 | ptr = alloc (ptr, size); |
639 | ptr = alloc (ptr, size); |
475 | |
640 | |
476 | if (!ptr && size) |
641 | if (!ptr && size) |
477 | { |
642 | { |
|
|
643 | #if EV_AVOID_STDIO |
|
|
644 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
645 | #else |
478 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
646 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
647 | #endif |
479 | abort (); |
648 | abort (); |
480 | } |
649 | } |
481 | |
650 | |
482 | return ptr; |
651 | return ptr; |
483 | } |
652 | } |
… | |
… | |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
654 | #define ev_malloc(size) ev_realloc (0, (size)) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
655 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
487 | |
656 | |
488 | /*****************************************************************************/ |
657 | /*****************************************************************************/ |
489 | |
658 | |
|
|
659 | /* set in reify when reification needed */ |
|
|
660 | #define EV_ANFD_REIFY 1 |
|
|
661 | |
490 | /* file descriptor info structure */ |
662 | /* file descriptor info structure */ |
491 | typedef struct |
663 | typedef struct |
492 | { |
664 | { |
493 | WL head; |
665 | WL head; |
494 | unsigned char events; /* the events watched for */ |
666 | unsigned char events; /* the events watched for */ |
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
667 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
668 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
497 | unsigned char unused; |
669 | unsigned char unused; |
498 | #if EV_USE_EPOLL |
670 | #if EV_USE_EPOLL |
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
671 | unsigned int egen; /* generation counter to counter epoll bugs */ |
500 | #endif |
672 | #endif |
501 | #if EV_SELECT_IS_WINSOCKET |
673 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
502 | SOCKET handle; |
674 | SOCKET handle; |
|
|
675 | #endif |
|
|
676 | #if EV_USE_IOCP |
|
|
677 | OVERLAPPED or, ow; |
503 | #endif |
678 | #endif |
504 | } ANFD; |
679 | } ANFD; |
505 | |
680 | |
506 | /* stores the pending event set for a given watcher */ |
681 | /* stores the pending event set for a given watcher */ |
507 | typedef struct |
682 | typedef struct |
… | |
… | |
562 | |
737 | |
563 | static int ev_default_loop_ptr; |
738 | static int ev_default_loop_ptr; |
564 | |
739 | |
565 | #endif |
740 | #endif |
566 | |
741 | |
|
|
742 | #if EV_FEATURE_API |
|
|
743 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
744 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
745 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
746 | #else |
|
|
747 | # define EV_RELEASE_CB (void)0 |
|
|
748 | # define EV_ACQUIRE_CB (void)0 |
|
|
749 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
750 | #endif |
|
|
751 | |
|
|
752 | #define EVBREAK_RECURSE 0x80 |
|
|
753 | |
567 | /*****************************************************************************/ |
754 | /*****************************************************************************/ |
568 | |
755 | |
|
|
756 | #ifndef EV_HAVE_EV_TIME |
569 | ev_tstamp |
757 | ev_tstamp |
570 | ev_time (void) |
758 | ev_time (void) |
571 | { |
759 | { |
572 | #if EV_USE_REALTIME |
760 | #if EV_USE_REALTIME |
573 | if (expect_true (have_realtime)) |
761 | if (expect_true (have_realtime)) |
… | |
… | |
580 | |
768 | |
581 | struct timeval tv; |
769 | struct timeval tv; |
582 | gettimeofday (&tv, 0); |
770 | gettimeofday (&tv, 0); |
583 | return tv.tv_sec + tv.tv_usec * 1e-6; |
771 | return tv.tv_sec + tv.tv_usec * 1e-6; |
584 | } |
772 | } |
|
|
773 | #endif |
585 | |
774 | |
586 | inline_size ev_tstamp |
775 | inline_size ev_tstamp |
587 | get_clock (void) |
776 | get_clock (void) |
588 | { |
777 | { |
589 | #if EV_USE_MONOTONIC |
778 | #if EV_USE_MONOTONIC |
… | |
… | |
612 | if (delay > 0.) |
801 | if (delay > 0.) |
613 | { |
802 | { |
614 | #if EV_USE_NANOSLEEP |
803 | #if EV_USE_NANOSLEEP |
615 | struct timespec ts; |
804 | struct timespec ts; |
616 | |
805 | |
617 | ts.tv_sec = (time_t)delay; |
806 | EV_TS_SET (ts, delay); |
618 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
619 | |
|
|
620 | nanosleep (&ts, 0); |
807 | nanosleep (&ts, 0); |
621 | #elif defined(_WIN32) |
808 | #elif defined(_WIN32) |
622 | Sleep ((unsigned long)(delay * 1e3)); |
809 | Sleep ((unsigned long)(delay * 1e3)); |
623 | #else |
810 | #else |
624 | struct timeval tv; |
811 | struct timeval tv; |
625 | |
812 | |
626 | tv.tv_sec = (time_t)delay; |
|
|
627 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
628 | |
|
|
629 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
813 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
630 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
814 | /* something not guaranteed by newer posix versions, but guaranteed */ |
631 | /* by older ones */ |
815 | /* by older ones */ |
|
|
816 | EV_TV_SET (tv, delay); |
632 | select (0, 0, 0, 0, &tv); |
817 | select (0, 0, 0, 0, &tv); |
633 | #endif |
818 | #endif |
634 | } |
819 | } |
635 | } |
820 | } |
636 | |
821 | |
637 | /*****************************************************************************/ |
822 | /*****************************************************************************/ |
638 | |
823 | |
639 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
824 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
640 | |
825 | |
641 | /* find a suitable new size for the given array, */ |
826 | /* find a suitable new size for the given array, */ |
642 | /* hopefully by rounding to a ncie-to-malloc size */ |
827 | /* hopefully by rounding to a nice-to-malloc size */ |
643 | inline_size int |
828 | inline_size int |
644 | array_nextsize (int elem, int cur, int cnt) |
829 | array_nextsize (int elem, int cur, int cnt) |
645 | { |
830 | { |
646 | int ncur = cur + 1; |
831 | int ncur = cur + 1; |
647 | |
832 | |
… | |
… | |
743 | } |
928 | } |
744 | |
929 | |
745 | /*****************************************************************************/ |
930 | /*****************************************************************************/ |
746 | |
931 | |
747 | inline_speed void |
932 | inline_speed void |
748 | fd_event (EV_P_ int fd, int revents) |
933 | fd_event_nocheck (EV_P_ int fd, int revents) |
749 | { |
934 | { |
750 | ANFD *anfd = anfds + fd; |
935 | ANFD *anfd = anfds + fd; |
751 | ev_io *w; |
936 | ev_io *w; |
752 | |
937 | |
753 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
938 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
757 | if (ev) |
942 | if (ev) |
758 | ev_feed_event (EV_A_ (W)w, ev); |
943 | ev_feed_event (EV_A_ (W)w, ev); |
759 | } |
944 | } |
760 | } |
945 | } |
761 | |
946 | |
|
|
947 | /* do not submit kernel events for fds that have reify set */ |
|
|
948 | /* because that means they changed while we were polling for new events */ |
|
|
949 | inline_speed void |
|
|
950 | fd_event (EV_P_ int fd, int revents) |
|
|
951 | { |
|
|
952 | ANFD *anfd = anfds + fd; |
|
|
953 | |
|
|
954 | if (expect_true (!anfd->reify)) |
|
|
955 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
956 | } |
|
|
957 | |
762 | void |
958 | void |
763 | ev_feed_fd_event (EV_P_ int fd, int revents) |
959 | ev_feed_fd_event (EV_P_ int fd, int revents) |
764 | { |
960 | { |
765 | if (fd >= 0 && fd < anfdmax) |
961 | if (fd >= 0 && fd < anfdmax) |
766 | fd_event (EV_A_ fd, revents); |
962 | fd_event_nocheck (EV_A_ fd, revents); |
767 | } |
963 | } |
768 | |
964 | |
769 | /* make sure the external fd watch events are in-sync */ |
965 | /* make sure the external fd watch events are in-sync */ |
770 | /* with the kernel/libev internal state */ |
966 | /* with the kernel/libev internal state */ |
771 | inline_size void |
967 | inline_size void |
… | |
… | |
777 | { |
973 | { |
778 | int fd = fdchanges [i]; |
974 | int fd = fdchanges [i]; |
779 | ANFD *anfd = anfds + fd; |
975 | ANFD *anfd = anfds + fd; |
780 | ev_io *w; |
976 | ev_io *w; |
781 | |
977 | |
782 | unsigned char events = 0; |
978 | unsigned char o_events = anfd->events; |
|
|
979 | unsigned char o_reify = anfd->reify; |
783 | |
980 | |
784 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
981 | anfd->reify = 0; |
785 | events |= (unsigned char)w->events; |
|
|
786 | |
982 | |
787 | #if EV_SELECT_IS_WINSOCKET |
983 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
788 | if (events) |
984 | if (o_reify & EV__IOFDSET) |
789 | { |
985 | { |
790 | unsigned long arg; |
986 | unsigned long arg; |
791 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
792 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
987 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
793 | #else |
|
|
794 | anfd->handle = _get_osfhandle (fd); |
|
|
795 | #endif |
|
|
796 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
988 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
989 | printf ("oi %d %x\n", fd, anfd->handle);//D |
797 | } |
990 | } |
798 | #endif |
991 | #endif |
799 | |
992 | |
|
|
993 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
800 | { |
994 | { |
801 | unsigned char o_events = anfd->events; |
|
|
802 | unsigned char o_reify = anfd->reify; |
|
|
803 | |
|
|
804 | anfd->reify = 0; |
|
|
805 | anfd->events = events; |
995 | anfd->events = 0; |
806 | |
996 | |
807 | if (o_events != events || o_reify & EV__IOFDSET) |
997 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
998 | anfd->events |= (unsigned char)w->events; |
|
|
999 | |
|
|
1000 | if (o_events != anfd->events) |
|
|
1001 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | if (o_reify & EV__IOFDSET) |
808 | backend_modify (EV_A_ fd, o_events, events); |
1005 | backend_modify (EV_A_ fd, o_events, anfd->events); |
809 | } |
|
|
810 | } |
1006 | } |
811 | |
1007 | |
812 | fdchangecnt = 0; |
1008 | fdchangecnt = 0; |
813 | } |
1009 | } |
814 | |
1010 | |
… | |
… | |
838 | ev_io_stop (EV_A_ w); |
1034 | ev_io_stop (EV_A_ w); |
839 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1035 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
840 | } |
1036 | } |
841 | } |
1037 | } |
842 | |
1038 | |
843 | /* check whether the given fd is atcually valid, for error recovery */ |
1039 | /* check whether the given fd is actually valid, for error recovery */ |
844 | inline_size int |
1040 | inline_size int |
845 | fd_valid (int fd) |
1041 | fd_valid (int fd) |
846 | { |
1042 | { |
847 | #ifdef _WIN32 |
1043 | #ifdef _WIN32 |
848 | return _get_osfhandle (fd) != -1; |
1044 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
849 | #else |
1045 | #else |
850 | return fcntl (fd, F_GETFD) != -1; |
1046 | return fcntl (fd, F_GETFD) != -1; |
851 | #endif |
1047 | #endif |
852 | } |
1048 | } |
853 | |
1049 | |
… | |
… | |
871 | |
1067 | |
872 | for (fd = anfdmax; fd--; ) |
1068 | for (fd = anfdmax; fd--; ) |
873 | if (anfds [fd].events) |
1069 | if (anfds [fd].events) |
874 | { |
1070 | { |
875 | fd_kill (EV_A_ fd); |
1071 | fd_kill (EV_A_ fd); |
876 | return; |
1072 | break; |
877 | } |
1073 | } |
878 | } |
1074 | } |
879 | |
1075 | |
880 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1076 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
881 | static void noinline |
1077 | static void noinline |
… | |
… | |
886 | for (fd = 0; fd < anfdmax; ++fd) |
1082 | for (fd = 0; fd < anfdmax; ++fd) |
887 | if (anfds [fd].events) |
1083 | if (anfds [fd].events) |
888 | { |
1084 | { |
889 | anfds [fd].events = 0; |
1085 | anfds [fd].events = 0; |
890 | anfds [fd].emask = 0; |
1086 | anfds [fd].emask = 0; |
891 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1087 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
892 | } |
1088 | } |
893 | } |
1089 | } |
894 | |
1090 | |
|
|
1091 | /* used to prepare libev internal fd's */ |
|
|
1092 | /* this is not fork-safe */ |
|
|
1093 | inline_speed void |
|
|
1094 | fd_intern (int fd) |
|
|
1095 | { |
|
|
1096 | #ifdef _WIN32 |
|
|
1097 | unsigned long arg = 1; |
|
|
1098 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1099 | #else |
|
|
1100 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1101 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1102 | #endif |
|
|
1103 | } |
|
|
1104 | |
895 | /*****************************************************************************/ |
1105 | /*****************************************************************************/ |
896 | |
1106 | |
897 | /* |
1107 | /* |
898 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1108 | * the heap functions want a real array index. array index 0 is guaranteed to not |
899 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1109 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
900 | * the branching factor of the d-tree. |
1110 | * the branching factor of the d-tree. |
901 | */ |
1111 | */ |
902 | |
1112 | |
903 | /* |
1113 | /* |
… | |
… | |
971 | |
1181 | |
972 | for (;;) |
1182 | for (;;) |
973 | { |
1183 | { |
974 | int c = k << 1; |
1184 | int c = k << 1; |
975 | |
1185 | |
976 | if (c > N + HEAP0 - 1) |
1186 | if (c >= N + HEAP0) |
977 | break; |
1187 | break; |
978 | |
1188 | |
979 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1189 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
980 | ? 1 : 0; |
1190 | ? 1 : 0; |
981 | |
1191 | |
… | |
… | |
1017 | |
1227 | |
1018 | /* move an element suitably so it is in a correct place */ |
1228 | /* move an element suitably so it is in a correct place */ |
1019 | inline_size void |
1229 | inline_size void |
1020 | adjustheap (ANHE *heap, int N, int k) |
1230 | adjustheap (ANHE *heap, int N, int k) |
1021 | { |
1231 | { |
1022 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1232 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1023 | upheap (heap, k); |
1233 | upheap (heap, k); |
1024 | else |
1234 | else |
1025 | downheap (heap, N, k); |
1235 | downheap (heap, N, k); |
1026 | } |
1236 | } |
1027 | |
1237 | |
… | |
… | |
1040 | /*****************************************************************************/ |
1250 | /*****************************************************************************/ |
1041 | |
1251 | |
1042 | /* associate signal watchers to a signal signal */ |
1252 | /* associate signal watchers to a signal signal */ |
1043 | typedef struct |
1253 | typedef struct |
1044 | { |
1254 | { |
|
|
1255 | EV_ATOMIC_T pending; |
|
|
1256 | #if EV_MULTIPLICITY |
|
|
1257 | EV_P; |
|
|
1258 | #endif |
1045 | WL head; |
1259 | WL head; |
1046 | EV_ATOMIC_T gotsig; |
|
|
1047 | } ANSIG; |
1260 | } ANSIG; |
1048 | |
1261 | |
1049 | static ANSIG *signals; |
1262 | static ANSIG signals [EV_NSIG - 1]; |
1050 | static int signalmax; |
|
|
1051 | |
|
|
1052 | static EV_ATOMIC_T gotsig; |
|
|
1053 | |
1263 | |
1054 | /*****************************************************************************/ |
1264 | /*****************************************************************************/ |
1055 | |
1265 | |
1056 | /* used to prepare libev internal fd's */ |
1266 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1057 | /* this is not fork-safe */ |
|
|
1058 | inline_speed void |
|
|
1059 | fd_intern (int fd) |
|
|
1060 | { |
|
|
1061 | #ifdef _WIN32 |
|
|
1062 | unsigned long arg = 1; |
|
|
1063 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1064 | #else |
|
|
1065 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1066 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1067 | #endif |
|
|
1068 | } |
|
|
1069 | |
1267 | |
1070 | static void noinline |
1268 | static void noinline |
1071 | evpipe_init (EV_P) |
1269 | evpipe_init (EV_P) |
1072 | { |
1270 | { |
1073 | if (!ev_is_active (&pipe_w)) |
1271 | if (!ev_is_active (&pipe_w)) |
1074 | { |
1272 | { |
1075 | #if EV_USE_EVENTFD |
1273 | # if EV_USE_EVENTFD |
|
|
1274 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1275 | if (evfd < 0 && errno == EINVAL) |
1076 | if ((evfd = eventfd (0, 0)) >= 0) |
1276 | evfd = eventfd (0, 0); |
|
|
1277 | |
|
|
1278 | if (evfd >= 0) |
1077 | { |
1279 | { |
1078 | evpipe [0] = -1; |
1280 | evpipe [0] = -1; |
1079 | fd_intern (evfd); |
1281 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1080 | ev_io_set (&pipe_w, evfd, EV_READ); |
1282 | ev_io_set (&pipe_w, evfd, EV_READ); |
1081 | } |
1283 | } |
1082 | else |
1284 | else |
1083 | #endif |
1285 | # endif |
1084 | { |
1286 | { |
1085 | while (pipe (evpipe)) |
1287 | while (pipe (evpipe)) |
1086 | ev_syserr ("(libev) error creating signal/async pipe"); |
1288 | ev_syserr ("(libev) error creating signal/async pipe"); |
1087 | |
1289 | |
1088 | fd_intern (evpipe [0]); |
1290 | fd_intern (evpipe [0]); |
… | |
… | |
1099 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1301 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1100 | { |
1302 | { |
1101 | if (!*flag) |
1303 | if (!*flag) |
1102 | { |
1304 | { |
1103 | int old_errno = errno; /* save errno because write might clobber it */ |
1305 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1306 | char dummy; |
1104 | |
1307 | |
1105 | *flag = 1; |
1308 | *flag = 1; |
1106 | |
1309 | |
1107 | #if EV_USE_EVENTFD |
1310 | #if EV_USE_EVENTFD |
1108 | if (evfd >= 0) |
1311 | if (evfd >= 0) |
… | |
… | |
1110 | uint64_t counter = 1; |
1313 | uint64_t counter = 1; |
1111 | write (evfd, &counter, sizeof (uint64_t)); |
1314 | write (evfd, &counter, sizeof (uint64_t)); |
1112 | } |
1315 | } |
1113 | else |
1316 | else |
1114 | #endif |
1317 | #endif |
|
|
1318 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1319 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1320 | /* so when you think this write should be a send instead, please find out */ |
|
|
1321 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1322 | /* tell me. thank you. */ |
1115 | write (evpipe [1], &old_errno, 1); |
1323 | write (evpipe [1], &dummy, 1); |
1116 | |
1324 | |
1117 | errno = old_errno; |
1325 | errno = old_errno; |
1118 | } |
1326 | } |
1119 | } |
1327 | } |
1120 | |
1328 | |
1121 | /* called whenever the libev signal pipe */ |
1329 | /* called whenever the libev signal pipe */ |
1122 | /* got some events (signal, async) */ |
1330 | /* got some events (signal, async) */ |
1123 | static void |
1331 | static void |
1124 | pipecb (EV_P_ ev_io *iow, int revents) |
1332 | pipecb (EV_P_ ev_io *iow, int revents) |
1125 | { |
1333 | { |
|
|
1334 | int i; |
|
|
1335 | |
1126 | #if EV_USE_EVENTFD |
1336 | #if EV_USE_EVENTFD |
1127 | if (evfd >= 0) |
1337 | if (evfd >= 0) |
1128 | { |
1338 | { |
1129 | uint64_t counter; |
1339 | uint64_t counter; |
1130 | read (evfd, &counter, sizeof (uint64_t)); |
1340 | read (evfd, &counter, sizeof (uint64_t)); |
1131 | } |
1341 | } |
1132 | else |
1342 | else |
1133 | #endif |
1343 | #endif |
1134 | { |
1344 | { |
1135 | char dummy; |
1345 | char dummy; |
|
|
1346 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1136 | read (evpipe [0], &dummy, 1); |
1347 | read (evpipe [0], &dummy, 1); |
1137 | } |
1348 | } |
1138 | |
1349 | |
1139 | if (gotsig && ev_is_default_loop (EV_A)) |
1350 | if (sig_pending) |
1140 | { |
1351 | { |
1141 | int signum; |
1352 | sig_pending = 0; |
1142 | gotsig = 0; |
|
|
1143 | |
1353 | |
1144 | for (signum = signalmax; signum--; ) |
1354 | for (i = EV_NSIG - 1; i--; ) |
1145 | if (signals [signum].gotsig) |
1355 | if (expect_false (signals [i].pending)) |
1146 | ev_feed_signal_event (EV_A_ signum + 1); |
1356 | ev_feed_signal_event (EV_A_ i + 1); |
1147 | } |
1357 | } |
1148 | |
1358 | |
1149 | #if EV_ASYNC_ENABLE |
1359 | #if EV_ASYNC_ENABLE |
1150 | if (gotasync) |
1360 | if (async_pending) |
1151 | { |
1361 | { |
1152 | int i; |
1362 | async_pending = 0; |
1153 | gotasync = 0; |
|
|
1154 | |
1363 | |
1155 | for (i = asynccnt; i--; ) |
1364 | for (i = asynccnt; i--; ) |
1156 | if (asyncs [i]->sent) |
1365 | if (asyncs [i]->sent) |
1157 | { |
1366 | { |
1158 | asyncs [i]->sent = 0; |
1367 | asyncs [i]->sent = 0; |
… | |
… | |
1166 | |
1375 | |
1167 | static void |
1376 | static void |
1168 | ev_sighandler (int signum) |
1377 | ev_sighandler (int signum) |
1169 | { |
1378 | { |
1170 | #if EV_MULTIPLICITY |
1379 | #if EV_MULTIPLICITY |
1171 | struct ev_loop *loop = &default_loop_struct; |
1380 | EV_P = signals [signum - 1].loop; |
1172 | #endif |
1381 | #endif |
1173 | |
1382 | |
1174 | #if _WIN32 |
1383 | #ifdef _WIN32 |
1175 | signal (signum, ev_sighandler); |
1384 | signal (signum, ev_sighandler); |
1176 | #endif |
1385 | #endif |
1177 | |
1386 | |
1178 | signals [signum - 1].gotsig = 1; |
1387 | signals [signum - 1].pending = 1; |
1179 | evpipe_write (EV_A_ &gotsig); |
1388 | evpipe_write (EV_A_ &sig_pending); |
1180 | } |
1389 | } |
1181 | |
1390 | |
1182 | void noinline |
1391 | void noinline |
1183 | ev_feed_signal_event (EV_P_ int signum) |
1392 | ev_feed_signal_event (EV_P_ int signum) |
1184 | { |
1393 | { |
1185 | WL w; |
1394 | WL w; |
1186 | |
1395 | |
|
|
1396 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1397 | return; |
|
|
1398 | |
|
|
1399 | --signum; |
|
|
1400 | |
1187 | #if EV_MULTIPLICITY |
1401 | #if EV_MULTIPLICITY |
1188 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1402 | /* it is permissible to try to feed a signal to the wrong loop */ |
1189 | #endif |
1403 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1190 | |
1404 | |
1191 | --signum; |
1405 | if (expect_false (signals [signum].loop != EV_A)) |
1192 | |
|
|
1193 | if (signum < 0 || signum >= signalmax) |
|
|
1194 | return; |
1406 | return; |
|
|
1407 | #endif |
1195 | |
1408 | |
1196 | signals [signum].gotsig = 0; |
1409 | signals [signum].pending = 0; |
1197 | |
1410 | |
1198 | for (w = signals [signum].head; w; w = w->next) |
1411 | for (w = signals [signum].head; w; w = w->next) |
1199 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1412 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1200 | } |
1413 | } |
1201 | |
1414 | |
|
|
1415 | #if EV_USE_SIGNALFD |
|
|
1416 | static void |
|
|
1417 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1418 | { |
|
|
1419 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1420 | |
|
|
1421 | for (;;) |
|
|
1422 | { |
|
|
1423 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1424 | |
|
|
1425 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1426 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1427 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1428 | |
|
|
1429 | if (res < (ssize_t)sizeof (si)) |
|
|
1430 | break; |
|
|
1431 | } |
|
|
1432 | } |
|
|
1433 | #endif |
|
|
1434 | |
|
|
1435 | #endif |
|
|
1436 | |
1202 | /*****************************************************************************/ |
1437 | /*****************************************************************************/ |
1203 | |
1438 | |
|
|
1439 | #if EV_CHILD_ENABLE |
1204 | static WL childs [EV_PID_HASHSIZE]; |
1440 | static WL childs [EV_PID_HASHSIZE]; |
1205 | |
|
|
1206 | #ifndef _WIN32 |
|
|
1207 | |
1441 | |
1208 | static ev_signal childev; |
1442 | static ev_signal childev; |
1209 | |
1443 | |
1210 | #ifndef WIFCONTINUED |
1444 | #ifndef WIFCONTINUED |
1211 | # define WIFCONTINUED(status) 0 |
1445 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1216 | child_reap (EV_P_ int chain, int pid, int status) |
1450 | child_reap (EV_P_ int chain, int pid, int status) |
1217 | { |
1451 | { |
1218 | ev_child *w; |
1452 | ev_child *w; |
1219 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1453 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1220 | |
1454 | |
1221 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1455 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1222 | { |
1456 | { |
1223 | if ((w->pid == pid || !w->pid) |
1457 | if ((w->pid == pid || !w->pid) |
1224 | && (!traced || (w->flags & 1))) |
1458 | && (!traced || (w->flags & 1))) |
1225 | { |
1459 | { |
1226 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1460 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1251 | /* make sure we are called again until all children have been reaped */ |
1485 | /* make sure we are called again until all children have been reaped */ |
1252 | /* we need to do it this way so that the callback gets called before we continue */ |
1486 | /* we need to do it this way so that the callback gets called before we continue */ |
1253 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1487 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1254 | |
1488 | |
1255 | child_reap (EV_A_ pid, pid, status); |
1489 | child_reap (EV_A_ pid, pid, status); |
1256 | if (EV_PID_HASHSIZE > 1) |
1490 | if ((EV_PID_HASHSIZE) > 1) |
1257 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1491 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1258 | } |
1492 | } |
1259 | |
1493 | |
1260 | #endif |
1494 | #endif |
1261 | |
1495 | |
1262 | /*****************************************************************************/ |
1496 | /*****************************************************************************/ |
1263 | |
1497 | |
|
|
1498 | #if EV_USE_IOCP |
|
|
1499 | # include "ev_iocp.c" |
|
|
1500 | #endif |
1264 | #if EV_USE_PORT |
1501 | #if EV_USE_PORT |
1265 | # include "ev_port.c" |
1502 | # include "ev_port.c" |
1266 | #endif |
1503 | #endif |
1267 | #if EV_USE_KQUEUE |
1504 | #if EV_USE_KQUEUE |
1268 | # include "ev_kqueue.c" |
1505 | # include "ev_kqueue.c" |
… | |
… | |
1328 | #ifdef __APPLE__ |
1565 | #ifdef __APPLE__ |
1329 | /* only select works correctly on that "unix-certified" platform */ |
1566 | /* only select works correctly on that "unix-certified" platform */ |
1330 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1567 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1331 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1568 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1332 | #endif |
1569 | #endif |
|
|
1570 | #ifdef __FreeBSD__ |
|
|
1571 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1572 | #endif |
1333 | |
1573 | |
1334 | return flags; |
1574 | return flags; |
1335 | } |
1575 | } |
1336 | |
1576 | |
1337 | unsigned int |
1577 | unsigned int |
1338 | ev_embeddable_backends (void) |
1578 | ev_embeddable_backends (void) |
1339 | { |
1579 | { |
1340 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1580 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1341 | |
1581 | |
1342 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1582 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1343 | /* please fix it and tell me how to detect the fix */ |
1583 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1344 | flags &= ~EVBACKEND_EPOLL; |
1584 | flags &= ~EVBACKEND_EPOLL; |
1345 | |
1585 | |
1346 | return flags; |
1586 | return flags; |
1347 | } |
1587 | } |
1348 | |
1588 | |
1349 | unsigned int |
1589 | unsigned int |
1350 | ev_backend (EV_P) |
1590 | ev_backend (EV_P) |
1351 | { |
1591 | { |
1352 | return backend; |
1592 | return backend; |
1353 | } |
1593 | } |
1354 | |
1594 | |
|
|
1595 | #if EV_FEATURE_API |
1355 | unsigned int |
1596 | unsigned int |
1356 | ev_loop_count (EV_P) |
1597 | ev_iteration (EV_P) |
1357 | { |
1598 | { |
1358 | return loop_count; |
1599 | return loop_count; |
1359 | } |
1600 | } |
1360 | |
1601 | |
|
|
1602 | unsigned int |
|
|
1603 | ev_depth (EV_P) |
|
|
1604 | { |
|
|
1605 | return loop_depth; |
|
|
1606 | } |
|
|
1607 | |
1361 | void |
1608 | void |
1362 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1609 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1363 | { |
1610 | { |
1364 | io_blocktime = interval; |
1611 | io_blocktime = interval; |
1365 | } |
1612 | } |
… | |
… | |
1367 | void |
1614 | void |
1368 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1615 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1369 | { |
1616 | { |
1370 | timeout_blocktime = interval; |
1617 | timeout_blocktime = interval; |
1371 | } |
1618 | } |
|
|
1619 | |
|
|
1620 | void |
|
|
1621 | ev_set_userdata (EV_P_ void *data) |
|
|
1622 | { |
|
|
1623 | userdata = data; |
|
|
1624 | } |
|
|
1625 | |
|
|
1626 | void * |
|
|
1627 | ev_userdata (EV_P) |
|
|
1628 | { |
|
|
1629 | return userdata; |
|
|
1630 | } |
|
|
1631 | |
|
|
1632 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1633 | { |
|
|
1634 | invoke_cb = invoke_pending_cb; |
|
|
1635 | } |
|
|
1636 | |
|
|
1637 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1638 | { |
|
|
1639 | release_cb = release; |
|
|
1640 | acquire_cb = acquire; |
|
|
1641 | } |
|
|
1642 | #endif |
1372 | |
1643 | |
1373 | /* initialise a loop structure, must be zero-initialised */ |
1644 | /* initialise a loop structure, must be zero-initialised */ |
1374 | static void noinline |
1645 | static void noinline |
1375 | loop_init (EV_P_ unsigned int flags) |
1646 | loop_init (EV_P_ unsigned int flags) |
1376 | { |
1647 | { |
… | |
… | |
1394 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1665 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1395 | have_monotonic = 1; |
1666 | have_monotonic = 1; |
1396 | } |
1667 | } |
1397 | #endif |
1668 | #endif |
1398 | |
1669 | |
|
|
1670 | /* pid check not overridable via env */ |
|
|
1671 | #ifndef _WIN32 |
|
|
1672 | if (flags & EVFLAG_FORKCHECK) |
|
|
1673 | curpid = getpid (); |
|
|
1674 | #endif |
|
|
1675 | |
|
|
1676 | if (!(flags & EVFLAG_NOENV) |
|
|
1677 | && !enable_secure () |
|
|
1678 | && getenv ("LIBEV_FLAGS")) |
|
|
1679 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1680 | |
1399 | ev_rt_now = ev_time (); |
1681 | ev_rt_now = ev_time (); |
1400 | mn_now = get_clock (); |
1682 | mn_now = get_clock (); |
1401 | now_floor = mn_now; |
1683 | now_floor = mn_now; |
1402 | rtmn_diff = ev_rt_now - mn_now; |
1684 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1685 | #if EV_FEATURE_API |
|
|
1686 | invoke_cb = ev_invoke_pending; |
|
|
1687 | #endif |
1403 | |
1688 | |
1404 | io_blocktime = 0.; |
1689 | io_blocktime = 0.; |
1405 | timeout_blocktime = 0.; |
1690 | timeout_blocktime = 0.; |
1406 | backend = 0; |
1691 | backend = 0; |
1407 | backend_fd = -1; |
1692 | backend_fd = -1; |
1408 | gotasync = 0; |
1693 | sig_pending = 0; |
|
|
1694 | #if EV_ASYNC_ENABLE |
|
|
1695 | async_pending = 0; |
|
|
1696 | #endif |
1409 | #if EV_USE_INOTIFY |
1697 | #if EV_USE_INOTIFY |
1410 | fs_fd = -2; |
1698 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1411 | #endif |
1699 | #endif |
1412 | |
1700 | #if EV_USE_SIGNALFD |
1413 | /* pid check not overridable via env */ |
1701 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1414 | #ifndef _WIN32 |
|
|
1415 | if (flags & EVFLAG_FORKCHECK) |
|
|
1416 | curpid = getpid (); |
|
|
1417 | #endif |
1702 | #endif |
1418 | |
|
|
1419 | if (!(flags & EVFLAG_NOENV) |
|
|
1420 | && !enable_secure () |
|
|
1421 | && getenv ("LIBEV_FLAGS")) |
|
|
1422 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1423 | |
1703 | |
1424 | if (!(flags & 0x0000ffffU)) |
1704 | if (!(flags & 0x0000ffffU)) |
1425 | flags |= ev_recommended_backends (); |
1705 | flags |= ev_recommended_backends (); |
1426 | |
1706 | |
|
|
1707 | #if EV_USE_IOCP |
|
|
1708 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1709 | #endif |
1427 | #if EV_USE_PORT |
1710 | #if EV_USE_PORT |
1428 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1711 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1429 | #endif |
1712 | #endif |
1430 | #if EV_USE_KQUEUE |
1713 | #if EV_USE_KQUEUE |
1431 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1714 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1440 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1723 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1441 | #endif |
1724 | #endif |
1442 | |
1725 | |
1443 | ev_prepare_init (&pending_w, pendingcb); |
1726 | ev_prepare_init (&pending_w, pendingcb); |
1444 | |
1727 | |
|
|
1728 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1445 | ev_init (&pipe_w, pipecb); |
1729 | ev_init (&pipe_w, pipecb); |
1446 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1730 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1731 | #endif |
1447 | } |
1732 | } |
1448 | } |
1733 | } |
1449 | |
1734 | |
1450 | /* free up a loop structure */ |
1735 | /* free up a loop structure */ |
1451 | static void noinline |
1736 | static void noinline |
… | |
… | |
1453 | { |
1738 | { |
1454 | int i; |
1739 | int i; |
1455 | |
1740 | |
1456 | if (ev_is_active (&pipe_w)) |
1741 | if (ev_is_active (&pipe_w)) |
1457 | { |
1742 | { |
1458 | ev_ref (EV_A); /* signal watcher */ |
1743 | /*ev_ref (EV_A);*/ |
1459 | ev_io_stop (EV_A_ &pipe_w); |
1744 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1460 | |
1745 | |
1461 | #if EV_USE_EVENTFD |
1746 | #if EV_USE_EVENTFD |
1462 | if (evfd >= 0) |
1747 | if (evfd >= 0) |
1463 | close (evfd); |
1748 | close (evfd); |
1464 | #endif |
1749 | #endif |
1465 | |
1750 | |
1466 | if (evpipe [0] >= 0) |
1751 | if (evpipe [0] >= 0) |
1467 | { |
1752 | { |
1468 | close (evpipe [0]); |
1753 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1469 | close (evpipe [1]); |
1754 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1470 | } |
1755 | } |
1471 | } |
1756 | } |
|
|
1757 | |
|
|
1758 | #if EV_USE_SIGNALFD |
|
|
1759 | if (ev_is_active (&sigfd_w)) |
|
|
1760 | close (sigfd); |
|
|
1761 | #endif |
1472 | |
1762 | |
1473 | #if EV_USE_INOTIFY |
1763 | #if EV_USE_INOTIFY |
1474 | if (fs_fd >= 0) |
1764 | if (fs_fd >= 0) |
1475 | close (fs_fd); |
1765 | close (fs_fd); |
1476 | #endif |
1766 | #endif |
1477 | |
1767 | |
1478 | if (backend_fd >= 0) |
1768 | if (backend_fd >= 0) |
1479 | close (backend_fd); |
1769 | close (backend_fd); |
1480 | |
1770 | |
|
|
1771 | #if EV_USE_IOCP |
|
|
1772 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1773 | #endif |
1481 | #if EV_USE_PORT |
1774 | #if EV_USE_PORT |
1482 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1775 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1483 | #endif |
1776 | #endif |
1484 | #if EV_USE_KQUEUE |
1777 | #if EV_USE_KQUEUE |
1485 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1778 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1500 | #if EV_IDLE_ENABLE |
1793 | #if EV_IDLE_ENABLE |
1501 | array_free (idle, [i]); |
1794 | array_free (idle, [i]); |
1502 | #endif |
1795 | #endif |
1503 | } |
1796 | } |
1504 | |
1797 | |
1505 | ev_free (anfds); anfdmax = 0; |
1798 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1506 | |
1799 | |
1507 | /* have to use the microsoft-never-gets-it-right macro */ |
1800 | /* have to use the microsoft-never-gets-it-right macro */ |
1508 | array_free (rfeed, EMPTY); |
1801 | array_free (rfeed, EMPTY); |
1509 | array_free (fdchange, EMPTY); |
1802 | array_free (fdchange, EMPTY); |
1510 | array_free (timer, EMPTY); |
1803 | array_free (timer, EMPTY); |
… | |
… | |
1545 | |
1838 | |
1546 | if (ev_is_active (&pipe_w)) |
1839 | if (ev_is_active (&pipe_w)) |
1547 | { |
1840 | { |
1548 | /* this "locks" the handlers against writing to the pipe */ |
1841 | /* this "locks" the handlers against writing to the pipe */ |
1549 | /* while we modify the fd vars */ |
1842 | /* while we modify the fd vars */ |
1550 | gotsig = 1; |
1843 | sig_pending = 1; |
1551 | #if EV_ASYNC_ENABLE |
1844 | #if EV_ASYNC_ENABLE |
1552 | gotasync = 1; |
1845 | async_pending = 1; |
1553 | #endif |
1846 | #endif |
1554 | |
1847 | |
1555 | ev_ref (EV_A); |
1848 | ev_ref (EV_A); |
1556 | ev_io_stop (EV_A_ &pipe_w); |
1849 | ev_io_stop (EV_A_ &pipe_w); |
1557 | |
1850 | |
… | |
… | |
1560 | close (evfd); |
1853 | close (evfd); |
1561 | #endif |
1854 | #endif |
1562 | |
1855 | |
1563 | if (evpipe [0] >= 0) |
1856 | if (evpipe [0] >= 0) |
1564 | { |
1857 | { |
1565 | close (evpipe [0]); |
1858 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1566 | close (evpipe [1]); |
1859 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1567 | } |
1860 | } |
1568 | |
1861 | |
|
|
1862 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1569 | evpipe_init (EV_A); |
1863 | evpipe_init (EV_A); |
1570 | /* now iterate over everything, in case we missed something */ |
1864 | /* now iterate over everything, in case we missed something */ |
1571 | pipecb (EV_A_ &pipe_w, EV_READ); |
1865 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1866 | #endif |
1572 | } |
1867 | } |
1573 | |
1868 | |
1574 | postfork = 0; |
1869 | postfork = 0; |
1575 | } |
1870 | } |
1576 | |
1871 | |
1577 | #if EV_MULTIPLICITY |
1872 | #if EV_MULTIPLICITY |
1578 | |
1873 | |
1579 | struct ev_loop * |
1874 | struct ev_loop * |
1580 | ev_loop_new (unsigned int flags) |
1875 | ev_loop_new (unsigned int flags) |
1581 | { |
1876 | { |
1582 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1877 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1583 | |
1878 | |
1584 | memset (loop, 0, sizeof (struct ev_loop)); |
1879 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1585 | |
|
|
1586 | loop_init (EV_A_ flags); |
1880 | loop_init (EV_A_ flags); |
1587 | |
1881 | |
1588 | if (ev_backend (EV_A)) |
1882 | if (ev_backend (EV_A)) |
1589 | return loop; |
1883 | return EV_A; |
1590 | |
1884 | |
1591 | return 0; |
1885 | return 0; |
1592 | } |
1886 | } |
1593 | |
1887 | |
1594 | void |
1888 | void |
… | |
… | |
1601 | void |
1895 | void |
1602 | ev_loop_fork (EV_P) |
1896 | ev_loop_fork (EV_P) |
1603 | { |
1897 | { |
1604 | postfork = 1; /* must be in line with ev_default_fork */ |
1898 | postfork = 1; /* must be in line with ev_default_fork */ |
1605 | } |
1899 | } |
|
|
1900 | #endif /* multiplicity */ |
1606 | |
1901 | |
1607 | #if EV_VERIFY |
1902 | #if EV_VERIFY |
1608 | static void noinline |
1903 | static void noinline |
1609 | verify_watcher (EV_P_ W w) |
1904 | verify_watcher (EV_P_ W w) |
1610 | { |
1905 | { |
… | |
… | |
1638 | verify_watcher (EV_A_ ws [cnt]); |
1933 | verify_watcher (EV_A_ ws [cnt]); |
1639 | } |
1934 | } |
1640 | } |
1935 | } |
1641 | #endif |
1936 | #endif |
1642 | |
1937 | |
|
|
1938 | #if EV_FEATURE_API |
1643 | void |
1939 | void |
1644 | ev_loop_verify (EV_P) |
1940 | ev_verify (EV_P) |
1645 | { |
1941 | { |
1646 | #if EV_VERIFY |
1942 | #if EV_VERIFY |
1647 | int i; |
1943 | int i; |
1648 | WL w; |
1944 | WL w; |
1649 | |
1945 | |
… | |
… | |
1688 | #if EV_ASYNC_ENABLE |
1984 | #if EV_ASYNC_ENABLE |
1689 | assert (asyncmax >= asynccnt); |
1985 | assert (asyncmax >= asynccnt); |
1690 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1986 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1691 | #endif |
1987 | #endif |
1692 | |
1988 | |
|
|
1989 | #if EV_PREPARE_ENABLE |
1693 | assert (preparemax >= preparecnt); |
1990 | assert (preparemax >= preparecnt); |
1694 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1991 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1992 | #endif |
1695 | |
1993 | |
|
|
1994 | #if EV_CHECK_ENABLE |
1696 | assert (checkmax >= checkcnt); |
1995 | assert (checkmax >= checkcnt); |
1697 | array_verify (EV_A_ (W *)checks, checkcnt); |
1996 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1997 | #endif |
1698 | |
1998 | |
1699 | # if 0 |
1999 | # if 0 |
|
|
2000 | #if EV_CHILD_ENABLE |
1700 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2001 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1701 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
2002 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2003 | #endif |
1702 | # endif |
2004 | # endif |
1703 | #endif |
2005 | #endif |
1704 | } |
2006 | } |
1705 | |
2007 | #endif |
1706 | #endif /* multiplicity */ |
|
|
1707 | |
2008 | |
1708 | #if EV_MULTIPLICITY |
2009 | #if EV_MULTIPLICITY |
1709 | struct ev_loop * |
2010 | struct ev_loop * |
1710 | ev_default_loop_init (unsigned int flags) |
|
|
1711 | #else |
2011 | #else |
1712 | int |
2012 | int |
|
|
2013 | #endif |
1713 | ev_default_loop (unsigned int flags) |
2014 | ev_default_loop (unsigned int flags) |
1714 | #endif |
|
|
1715 | { |
2015 | { |
1716 | if (!ev_default_loop_ptr) |
2016 | if (!ev_default_loop_ptr) |
1717 | { |
2017 | { |
1718 | #if EV_MULTIPLICITY |
2018 | #if EV_MULTIPLICITY |
1719 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2019 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1720 | #else |
2020 | #else |
1721 | ev_default_loop_ptr = 1; |
2021 | ev_default_loop_ptr = 1; |
1722 | #endif |
2022 | #endif |
1723 | |
2023 | |
1724 | loop_init (EV_A_ flags); |
2024 | loop_init (EV_A_ flags); |
1725 | |
2025 | |
1726 | if (ev_backend (EV_A)) |
2026 | if (ev_backend (EV_A)) |
1727 | { |
2027 | { |
1728 | #ifndef _WIN32 |
2028 | #if EV_CHILD_ENABLE |
1729 | ev_signal_init (&childev, childcb, SIGCHLD); |
2029 | ev_signal_init (&childev, childcb, SIGCHLD); |
1730 | ev_set_priority (&childev, EV_MAXPRI); |
2030 | ev_set_priority (&childev, EV_MAXPRI); |
1731 | ev_signal_start (EV_A_ &childev); |
2031 | ev_signal_start (EV_A_ &childev); |
1732 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2032 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1733 | #endif |
2033 | #endif |
… | |
… | |
1741 | |
2041 | |
1742 | void |
2042 | void |
1743 | ev_default_destroy (void) |
2043 | ev_default_destroy (void) |
1744 | { |
2044 | { |
1745 | #if EV_MULTIPLICITY |
2045 | #if EV_MULTIPLICITY |
1746 | struct ev_loop *loop = ev_default_loop_ptr; |
2046 | EV_P = ev_default_loop_ptr; |
1747 | #endif |
2047 | #endif |
1748 | |
2048 | |
1749 | ev_default_loop_ptr = 0; |
2049 | ev_default_loop_ptr = 0; |
1750 | |
2050 | |
1751 | #ifndef _WIN32 |
2051 | #if EV_CHILD_ENABLE |
1752 | ev_ref (EV_A); /* child watcher */ |
2052 | ev_ref (EV_A); /* child watcher */ |
1753 | ev_signal_stop (EV_A_ &childev); |
2053 | ev_signal_stop (EV_A_ &childev); |
1754 | #endif |
2054 | #endif |
1755 | |
2055 | |
1756 | loop_destroy (EV_A); |
2056 | loop_destroy (EV_A); |
… | |
… | |
1758 | |
2058 | |
1759 | void |
2059 | void |
1760 | ev_default_fork (void) |
2060 | ev_default_fork (void) |
1761 | { |
2061 | { |
1762 | #if EV_MULTIPLICITY |
2062 | #if EV_MULTIPLICITY |
1763 | struct ev_loop *loop = ev_default_loop_ptr; |
2063 | EV_P = ev_default_loop_ptr; |
1764 | #endif |
2064 | #endif |
1765 | |
2065 | |
1766 | postfork = 1; /* must be in line with ev_loop_fork */ |
2066 | postfork = 1; /* must be in line with ev_loop_fork */ |
1767 | } |
2067 | } |
1768 | |
2068 | |
… | |
… | |
1772 | ev_invoke (EV_P_ void *w, int revents) |
2072 | ev_invoke (EV_P_ void *w, int revents) |
1773 | { |
2073 | { |
1774 | EV_CB_INVOKE ((W)w, revents); |
2074 | EV_CB_INVOKE ((W)w, revents); |
1775 | } |
2075 | } |
1776 | |
2076 | |
1777 | inline_speed void |
2077 | unsigned int |
1778 | call_pending (EV_P) |
2078 | ev_pending_count (EV_P) |
|
|
2079 | { |
|
|
2080 | int pri; |
|
|
2081 | unsigned int count = 0; |
|
|
2082 | |
|
|
2083 | for (pri = NUMPRI; pri--; ) |
|
|
2084 | count += pendingcnt [pri]; |
|
|
2085 | |
|
|
2086 | return count; |
|
|
2087 | } |
|
|
2088 | |
|
|
2089 | void noinline |
|
|
2090 | ev_invoke_pending (EV_P) |
1779 | { |
2091 | { |
1780 | int pri; |
2092 | int pri; |
1781 | |
2093 | |
1782 | for (pri = NUMPRI; pri--; ) |
2094 | for (pri = NUMPRI; pri--; ) |
1783 | while (pendingcnt [pri]) |
2095 | while (pendingcnt [pri]) |
… | |
… | |
1850 | EV_FREQUENT_CHECK; |
2162 | EV_FREQUENT_CHECK; |
1851 | feed_reverse (EV_A_ (W)w); |
2163 | feed_reverse (EV_A_ (W)w); |
1852 | } |
2164 | } |
1853 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2165 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1854 | |
2166 | |
1855 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2167 | feed_reverse_done (EV_A_ EV_TIMER); |
1856 | } |
2168 | } |
1857 | } |
2169 | } |
1858 | |
2170 | |
1859 | #if EV_PERIODIC_ENABLE |
2171 | #if EV_PERIODIC_ENABLE |
1860 | /* make periodics pending */ |
2172 | /* make periodics pending */ |
… | |
… | |
1913 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2225 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1914 | } |
2226 | } |
1915 | } |
2227 | } |
1916 | |
2228 | |
1917 | /* simply recalculate all periodics */ |
2229 | /* simply recalculate all periodics */ |
1918 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2230 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1919 | static void noinline |
2231 | static void noinline |
1920 | periodics_reschedule (EV_P) |
2232 | periodics_reschedule (EV_P) |
1921 | { |
2233 | { |
1922 | int i; |
2234 | int i; |
1923 | |
2235 | |
… | |
… | |
1951 | ANHE_at_cache (*he); |
2263 | ANHE_at_cache (*he); |
1952 | } |
2264 | } |
1953 | } |
2265 | } |
1954 | |
2266 | |
1955 | /* fetch new monotonic and realtime times from the kernel */ |
2267 | /* fetch new monotonic and realtime times from the kernel */ |
1956 | /* also detetc if there was a timejump, and act accordingly */ |
2268 | /* also detect if there was a timejump, and act accordingly */ |
1957 | inline_speed void |
2269 | inline_speed void |
1958 | time_update (EV_P_ ev_tstamp max_block) |
2270 | time_update (EV_P_ ev_tstamp max_block) |
1959 | { |
2271 | { |
1960 | #if EV_USE_MONOTONIC |
2272 | #if EV_USE_MONOTONIC |
1961 | if (expect_true (have_monotonic)) |
2273 | if (expect_true (have_monotonic)) |
… | |
… | |
2018 | |
2330 | |
2019 | mn_now = ev_rt_now; |
2331 | mn_now = ev_rt_now; |
2020 | } |
2332 | } |
2021 | } |
2333 | } |
2022 | |
2334 | |
2023 | static int loop_done; |
|
|
2024 | |
|
|
2025 | void |
2335 | void |
2026 | ev_loop (EV_P_ int flags) |
2336 | ev_run (EV_P_ int flags) |
2027 | { |
2337 | { |
|
|
2338 | #if EV_FEATURE_API |
|
|
2339 | ++loop_depth; |
|
|
2340 | #endif |
|
|
2341 | |
|
|
2342 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2343 | |
2028 | loop_done = EVUNLOOP_CANCEL; |
2344 | loop_done = EVBREAK_CANCEL; |
2029 | |
2345 | |
2030 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2346 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2031 | |
2347 | |
2032 | do |
2348 | do |
2033 | { |
2349 | { |
2034 | #if EV_VERIFY >= 2 |
2350 | #if EV_VERIFY >= 2 |
2035 | ev_loop_verify (EV_A); |
2351 | ev_verify (EV_A); |
2036 | #endif |
2352 | #endif |
2037 | |
2353 | |
2038 | #ifndef _WIN32 |
2354 | #ifndef _WIN32 |
2039 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2355 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2040 | if (expect_false (getpid () != curpid)) |
2356 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2048 | /* we might have forked, so queue fork handlers */ |
2364 | /* we might have forked, so queue fork handlers */ |
2049 | if (expect_false (postfork)) |
2365 | if (expect_false (postfork)) |
2050 | if (forkcnt) |
2366 | if (forkcnt) |
2051 | { |
2367 | { |
2052 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2368 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2053 | call_pending (EV_A); |
2369 | EV_INVOKE_PENDING; |
2054 | } |
2370 | } |
2055 | #endif |
2371 | #endif |
2056 | |
2372 | |
|
|
2373 | #if EV_PREPARE_ENABLE |
2057 | /* queue prepare watchers (and execute them) */ |
2374 | /* queue prepare watchers (and execute them) */ |
2058 | if (expect_false (preparecnt)) |
2375 | if (expect_false (preparecnt)) |
2059 | { |
2376 | { |
2060 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2377 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2061 | call_pending (EV_A); |
2378 | EV_INVOKE_PENDING; |
2062 | } |
2379 | } |
|
|
2380 | #endif |
|
|
2381 | |
|
|
2382 | if (expect_false (loop_done)) |
|
|
2383 | break; |
2063 | |
2384 | |
2064 | /* we might have forked, so reify kernel state if necessary */ |
2385 | /* we might have forked, so reify kernel state if necessary */ |
2065 | if (expect_false (postfork)) |
2386 | if (expect_false (postfork)) |
2066 | loop_fork (EV_A); |
2387 | loop_fork (EV_A); |
2067 | |
2388 | |
… | |
… | |
2071 | /* calculate blocking time */ |
2392 | /* calculate blocking time */ |
2072 | { |
2393 | { |
2073 | ev_tstamp waittime = 0.; |
2394 | ev_tstamp waittime = 0.; |
2074 | ev_tstamp sleeptime = 0.; |
2395 | ev_tstamp sleeptime = 0.; |
2075 | |
2396 | |
|
|
2397 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2398 | ev_tstamp prev_mn_now = mn_now; |
|
|
2399 | |
|
|
2400 | /* update time to cancel out callback processing overhead */ |
|
|
2401 | time_update (EV_A_ 1e100); |
|
|
2402 | |
2076 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2403 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2077 | { |
2404 | { |
2078 | /* update time to cancel out callback processing overhead */ |
|
|
2079 | time_update (EV_A_ 1e100); |
|
|
2080 | |
|
|
2081 | waittime = MAX_BLOCKTIME; |
2405 | waittime = MAX_BLOCKTIME; |
2082 | |
2406 | |
2083 | if (timercnt) |
2407 | if (timercnt) |
2084 | { |
2408 | { |
2085 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2409 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2092 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2416 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2093 | if (waittime > to) waittime = to; |
2417 | if (waittime > to) waittime = to; |
2094 | } |
2418 | } |
2095 | #endif |
2419 | #endif |
2096 | |
2420 | |
|
|
2421 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2097 | if (expect_false (waittime < timeout_blocktime)) |
2422 | if (expect_false (waittime < timeout_blocktime)) |
2098 | waittime = timeout_blocktime; |
2423 | waittime = timeout_blocktime; |
2099 | |
2424 | |
2100 | sleeptime = waittime - backend_fudge; |
2425 | /* extra check because io_blocktime is commonly 0 */ |
2101 | |
|
|
2102 | if (expect_true (sleeptime > io_blocktime)) |
2426 | if (expect_false (io_blocktime)) |
2103 | sleeptime = io_blocktime; |
|
|
2104 | |
|
|
2105 | if (sleeptime) |
|
|
2106 | { |
2427 | { |
|
|
2428 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2429 | |
|
|
2430 | if (sleeptime > waittime - backend_fudge) |
|
|
2431 | sleeptime = waittime - backend_fudge; |
|
|
2432 | |
|
|
2433 | if (expect_true (sleeptime > 0.)) |
|
|
2434 | { |
2107 | ev_sleep (sleeptime); |
2435 | ev_sleep (sleeptime); |
2108 | waittime -= sleeptime; |
2436 | waittime -= sleeptime; |
|
|
2437 | } |
2109 | } |
2438 | } |
2110 | } |
2439 | } |
2111 | |
2440 | |
|
|
2441 | #if EV_FEATURE_API |
2112 | ++loop_count; |
2442 | ++loop_count; |
|
|
2443 | #endif |
|
|
2444 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2113 | backend_poll (EV_A_ waittime); |
2445 | backend_poll (EV_A_ waittime); |
|
|
2446 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2114 | |
2447 | |
2115 | /* update ev_rt_now, do magic */ |
2448 | /* update ev_rt_now, do magic */ |
2116 | time_update (EV_A_ waittime + sleeptime); |
2449 | time_update (EV_A_ waittime + sleeptime); |
2117 | } |
2450 | } |
2118 | |
2451 | |
… | |
… | |
2125 | #if EV_IDLE_ENABLE |
2458 | #if EV_IDLE_ENABLE |
2126 | /* queue idle watchers unless other events are pending */ |
2459 | /* queue idle watchers unless other events are pending */ |
2127 | idle_reify (EV_A); |
2460 | idle_reify (EV_A); |
2128 | #endif |
2461 | #endif |
2129 | |
2462 | |
|
|
2463 | #if EV_CHECK_ENABLE |
2130 | /* queue check watchers, to be executed first */ |
2464 | /* queue check watchers, to be executed first */ |
2131 | if (expect_false (checkcnt)) |
2465 | if (expect_false (checkcnt)) |
2132 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2466 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2467 | #endif |
2133 | |
2468 | |
2134 | call_pending (EV_A); |
2469 | EV_INVOKE_PENDING; |
2135 | } |
2470 | } |
2136 | while (expect_true ( |
2471 | while (expect_true ( |
2137 | activecnt |
2472 | activecnt |
2138 | && !loop_done |
2473 | && !loop_done |
2139 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2474 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2140 | )); |
2475 | )); |
2141 | |
2476 | |
2142 | if (loop_done == EVUNLOOP_ONE) |
2477 | if (loop_done == EVBREAK_ONE) |
2143 | loop_done = EVUNLOOP_CANCEL; |
2478 | loop_done = EVBREAK_CANCEL; |
2144 | } |
|
|
2145 | |
2479 | |
|
|
2480 | #if EV_FEATURE_API |
|
|
2481 | --loop_depth; |
|
|
2482 | #endif |
|
|
2483 | } |
|
|
2484 | |
2146 | void |
2485 | void |
2147 | ev_unloop (EV_P_ int how) |
2486 | ev_break (EV_P_ int how) |
2148 | { |
2487 | { |
2149 | loop_done = how; |
2488 | loop_done = how; |
2150 | } |
2489 | } |
2151 | |
2490 | |
2152 | void |
2491 | void |
… | |
… | |
2199 | inline_size void |
2538 | inline_size void |
2200 | wlist_del (WL *head, WL elem) |
2539 | wlist_del (WL *head, WL elem) |
2201 | { |
2540 | { |
2202 | while (*head) |
2541 | while (*head) |
2203 | { |
2542 | { |
2204 | if (*head == elem) |
2543 | if (expect_true (*head == elem)) |
2205 | { |
2544 | { |
2206 | *head = elem->next; |
2545 | *head = elem->next; |
2207 | return; |
2546 | break; |
2208 | } |
2547 | } |
2209 | |
2548 | |
2210 | head = &(*head)->next; |
2549 | head = &(*head)->next; |
2211 | } |
2550 | } |
2212 | } |
2551 | } |
… | |
… | |
2240 | } |
2579 | } |
2241 | |
2580 | |
2242 | inline_size void |
2581 | inline_size void |
2243 | pri_adjust (EV_P_ W w) |
2582 | pri_adjust (EV_P_ W w) |
2244 | { |
2583 | { |
2245 | int pri = w->priority; |
2584 | int pri = ev_priority (w); |
2246 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2585 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2247 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2586 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2248 | w->priority = pri; |
2587 | ev_set_priority (w, pri); |
2249 | } |
2588 | } |
2250 | |
2589 | |
2251 | inline_speed void |
2590 | inline_speed void |
2252 | ev_start (EV_P_ W w, int active) |
2591 | ev_start (EV_P_ W w, int active) |
2253 | { |
2592 | { |
… | |
… | |
2272 | |
2611 | |
2273 | if (expect_false (ev_is_active (w))) |
2612 | if (expect_false (ev_is_active (w))) |
2274 | return; |
2613 | return; |
2275 | |
2614 | |
2276 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2615 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2277 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2616 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2278 | |
2617 | |
2279 | EV_FREQUENT_CHECK; |
2618 | EV_FREQUENT_CHECK; |
2280 | |
2619 | |
2281 | ev_start (EV_A_ (W)w, 1); |
2620 | ev_start (EV_A_ (W)w, 1); |
2282 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2621 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2283 | wlist_add (&anfds[fd].head, (WL)w); |
2622 | wlist_add (&anfds[fd].head, (WL)w); |
2284 | |
2623 | |
2285 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2624 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2286 | w->events &= ~EV__IOFDSET; |
2625 | w->events &= ~EV__IOFDSET; |
2287 | |
2626 | |
2288 | EV_FREQUENT_CHECK; |
2627 | EV_FREQUENT_CHECK; |
2289 | } |
2628 | } |
2290 | |
2629 | |
… | |
… | |
2300 | EV_FREQUENT_CHECK; |
2639 | EV_FREQUENT_CHECK; |
2301 | |
2640 | |
2302 | wlist_del (&anfds[w->fd].head, (WL)w); |
2641 | wlist_del (&anfds[w->fd].head, (WL)w); |
2303 | ev_stop (EV_A_ (W)w); |
2642 | ev_stop (EV_A_ (W)w); |
2304 | |
2643 | |
2305 | fd_change (EV_A_ w->fd, 1); |
2644 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2306 | |
2645 | |
2307 | EV_FREQUENT_CHECK; |
2646 | EV_FREQUENT_CHECK; |
2308 | } |
2647 | } |
2309 | |
2648 | |
2310 | void noinline |
2649 | void noinline |
… | |
… | |
2352 | timers [active] = timers [timercnt + HEAP0]; |
2691 | timers [active] = timers [timercnt + HEAP0]; |
2353 | adjustheap (timers, timercnt, active); |
2692 | adjustheap (timers, timercnt, active); |
2354 | } |
2693 | } |
2355 | } |
2694 | } |
2356 | |
2695 | |
2357 | EV_FREQUENT_CHECK; |
|
|
2358 | |
|
|
2359 | ev_at (w) -= mn_now; |
2696 | ev_at (w) -= mn_now; |
2360 | |
2697 | |
2361 | ev_stop (EV_A_ (W)w); |
2698 | ev_stop (EV_A_ (W)w); |
|
|
2699 | |
|
|
2700 | EV_FREQUENT_CHECK; |
2362 | } |
2701 | } |
2363 | |
2702 | |
2364 | void noinline |
2703 | void noinline |
2365 | ev_timer_again (EV_P_ ev_timer *w) |
2704 | ev_timer_again (EV_P_ ev_timer *w) |
2366 | { |
2705 | { |
… | |
… | |
2384 | } |
2723 | } |
2385 | |
2724 | |
2386 | EV_FREQUENT_CHECK; |
2725 | EV_FREQUENT_CHECK; |
2387 | } |
2726 | } |
2388 | |
2727 | |
|
|
2728 | ev_tstamp |
|
|
2729 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2730 | { |
|
|
2731 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2732 | } |
|
|
2733 | |
2389 | #if EV_PERIODIC_ENABLE |
2734 | #if EV_PERIODIC_ENABLE |
2390 | void noinline |
2735 | void noinline |
2391 | ev_periodic_start (EV_P_ ev_periodic *w) |
2736 | ev_periodic_start (EV_P_ ev_periodic *w) |
2392 | { |
2737 | { |
2393 | if (expect_false (ev_is_active (w))) |
2738 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2439 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2784 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2440 | adjustheap (periodics, periodiccnt, active); |
2785 | adjustheap (periodics, periodiccnt, active); |
2441 | } |
2786 | } |
2442 | } |
2787 | } |
2443 | |
2788 | |
2444 | EV_FREQUENT_CHECK; |
|
|
2445 | |
|
|
2446 | ev_stop (EV_A_ (W)w); |
2789 | ev_stop (EV_A_ (W)w); |
|
|
2790 | |
|
|
2791 | EV_FREQUENT_CHECK; |
2447 | } |
2792 | } |
2448 | |
2793 | |
2449 | void noinline |
2794 | void noinline |
2450 | ev_periodic_again (EV_P_ ev_periodic *w) |
2795 | ev_periodic_again (EV_P_ ev_periodic *w) |
2451 | { |
2796 | { |
… | |
… | |
2457 | |
2802 | |
2458 | #ifndef SA_RESTART |
2803 | #ifndef SA_RESTART |
2459 | # define SA_RESTART 0 |
2804 | # define SA_RESTART 0 |
2460 | #endif |
2805 | #endif |
2461 | |
2806 | |
|
|
2807 | #if EV_SIGNAL_ENABLE |
|
|
2808 | |
2462 | void noinline |
2809 | void noinline |
2463 | ev_signal_start (EV_P_ ev_signal *w) |
2810 | ev_signal_start (EV_P_ ev_signal *w) |
2464 | { |
2811 | { |
2465 | #if EV_MULTIPLICITY |
|
|
2466 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2467 | #endif |
|
|
2468 | if (expect_false (ev_is_active (w))) |
2812 | if (expect_false (ev_is_active (w))) |
2469 | return; |
2813 | return; |
2470 | |
2814 | |
2471 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2815 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2472 | |
2816 | |
2473 | evpipe_init (EV_A); |
2817 | #if EV_MULTIPLICITY |
|
|
2818 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2819 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2474 | |
2820 | |
2475 | EV_FREQUENT_CHECK; |
2821 | signals [w->signum - 1].loop = EV_A; |
|
|
2822 | #endif |
2476 | |
2823 | |
|
|
2824 | EV_FREQUENT_CHECK; |
|
|
2825 | |
|
|
2826 | #if EV_USE_SIGNALFD |
|
|
2827 | if (sigfd == -2) |
2477 | { |
2828 | { |
2478 | #ifndef _WIN32 |
2829 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2479 | sigset_t full, prev; |
2830 | if (sigfd < 0 && errno == EINVAL) |
2480 | sigfillset (&full); |
2831 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2481 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2482 | #endif |
|
|
2483 | |
2832 | |
2484 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2833 | if (sigfd >= 0) |
|
|
2834 | { |
|
|
2835 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2485 | |
2836 | |
2486 | #ifndef _WIN32 |
2837 | sigemptyset (&sigfd_set); |
2487 | sigprocmask (SIG_SETMASK, &prev, 0); |
2838 | |
2488 | #endif |
2839 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2840 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2841 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2842 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2843 | } |
2489 | } |
2844 | } |
|
|
2845 | |
|
|
2846 | if (sigfd >= 0) |
|
|
2847 | { |
|
|
2848 | /* TODO: check .head */ |
|
|
2849 | sigaddset (&sigfd_set, w->signum); |
|
|
2850 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2851 | |
|
|
2852 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2853 | } |
|
|
2854 | #endif |
2490 | |
2855 | |
2491 | ev_start (EV_A_ (W)w, 1); |
2856 | ev_start (EV_A_ (W)w, 1); |
2492 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2857 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2493 | |
2858 | |
2494 | if (!((WL)w)->next) |
2859 | if (!((WL)w)->next) |
|
|
2860 | # if EV_USE_SIGNALFD |
|
|
2861 | if (sigfd < 0) /*TODO*/ |
|
|
2862 | # endif |
2495 | { |
2863 | { |
2496 | #if _WIN32 |
2864 | # ifdef _WIN32 |
|
|
2865 | evpipe_init (EV_A); |
|
|
2866 | |
2497 | signal (w->signum, ev_sighandler); |
2867 | signal (w->signum, ev_sighandler); |
2498 | #else |
2868 | # else |
2499 | struct sigaction sa; |
2869 | struct sigaction sa; |
|
|
2870 | |
|
|
2871 | evpipe_init (EV_A); |
|
|
2872 | |
2500 | sa.sa_handler = ev_sighandler; |
2873 | sa.sa_handler = ev_sighandler; |
2501 | sigfillset (&sa.sa_mask); |
2874 | sigfillset (&sa.sa_mask); |
2502 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2875 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2503 | sigaction (w->signum, &sa, 0); |
2876 | sigaction (w->signum, &sa, 0); |
|
|
2877 | |
|
|
2878 | sigemptyset (&sa.sa_mask); |
|
|
2879 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2880 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2504 | #endif |
2881 | #endif |
2505 | } |
2882 | } |
2506 | |
2883 | |
2507 | EV_FREQUENT_CHECK; |
2884 | EV_FREQUENT_CHECK; |
2508 | } |
2885 | } |
2509 | |
2886 | |
2510 | void noinline |
2887 | void noinline |
… | |
… | |
2518 | |
2895 | |
2519 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2896 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2520 | ev_stop (EV_A_ (W)w); |
2897 | ev_stop (EV_A_ (W)w); |
2521 | |
2898 | |
2522 | if (!signals [w->signum - 1].head) |
2899 | if (!signals [w->signum - 1].head) |
|
|
2900 | { |
|
|
2901 | #if EV_MULTIPLICITY |
|
|
2902 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2903 | #endif |
|
|
2904 | #if EV_USE_SIGNALFD |
|
|
2905 | if (sigfd >= 0) |
|
|
2906 | { |
|
|
2907 | sigset_t ss; |
|
|
2908 | |
|
|
2909 | sigemptyset (&ss); |
|
|
2910 | sigaddset (&ss, w->signum); |
|
|
2911 | sigdelset (&sigfd_set, w->signum); |
|
|
2912 | |
|
|
2913 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2914 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2915 | } |
|
|
2916 | else |
|
|
2917 | #endif |
2523 | signal (w->signum, SIG_DFL); |
2918 | signal (w->signum, SIG_DFL); |
|
|
2919 | } |
2524 | |
2920 | |
2525 | EV_FREQUENT_CHECK; |
2921 | EV_FREQUENT_CHECK; |
2526 | } |
2922 | } |
|
|
2923 | |
|
|
2924 | #endif |
|
|
2925 | |
|
|
2926 | #if EV_CHILD_ENABLE |
2527 | |
2927 | |
2528 | void |
2928 | void |
2529 | ev_child_start (EV_P_ ev_child *w) |
2929 | ev_child_start (EV_P_ ev_child *w) |
2530 | { |
2930 | { |
2531 | #if EV_MULTIPLICITY |
2931 | #if EV_MULTIPLICITY |
… | |
… | |
2535 | return; |
2935 | return; |
2536 | |
2936 | |
2537 | EV_FREQUENT_CHECK; |
2937 | EV_FREQUENT_CHECK; |
2538 | |
2938 | |
2539 | ev_start (EV_A_ (W)w, 1); |
2939 | ev_start (EV_A_ (W)w, 1); |
2540 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2940 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2541 | |
2941 | |
2542 | EV_FREQUENT_CHECK; |
2942 | EV_FREQUENT_CHECK; |
2543 | } |
2943 | } |
2544 | |
2944 | |
2545 | void |
2945 | void |
… | |
… | |
2549 | if (expect_false (!ev_is_active (w))) |
2949 | if (expect_false (!ev_is_active (w))) |
2550 | return; |
2950 | return; |
2551 | |
2951 | |
2552 | EV_FREQUENT_CHECK; |
2952 | EV_FREQUENT_CHECK; |
2553 | |
2953 | |
2554 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2954 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2555 | ev_stop (EV_A_ (W)w); |
2955 | ev_stop (EV_A_ (W)w); |
2556 | |
2956 | |
2557 | EV_FREQUENT_CHECK; |
2957 | EV_FREQUENT_CHECK; |
2558 | } |
2958 | } |
|
|
2959 | |
|
|
2960 | #endif |
2559 | |
2961 | |
2560 | #if EV_STAT_ENABLE |
2962 | #if EV_STAT_ENABLE |
2561 | |
2963 | |
2562 | # ifdef _WIN32 |
2964 | # ifdef _WIN32 |
2563 | # undef lstat |
2965 | # undef lstat |
… | |
… | |
2569 | #define MIN_STAT_INTERVAL 0.1074891 |
2971 | #define MIN_STAT_INTERVAL 0.1074891 |
2570 | |
2972 | |
2571 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2973 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2572 | |
2974 | |
2573 | #if EV_USE_INOTIFY |
2975 | #if EV_USE_INOTIFY |
2574 | # define EV_INOTIFY_BUFSIZE 8192 |
2976 | |
|
|
2977 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2978 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2575 | |
2979 | |
2576 | static void noinline |
2980 | static void noinline |
2577 | infy_add (EV_P_ ev_stat *w) |
2981 | infy_add (EV_P_ ev_stat *w) |
2578 | { |
2982 | { |
2579 | 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); |
2983 | 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); |
2580 | |
2984 | |
2581 | if (w->wd < 0) |
2985 | if (w->wd >= 0) |
|
|
2986 | { |
|
|
2987 | struct statfs sfs; |
|
|
2988 | |
|
|
2989 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2990 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2991 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2992 | |
|
|
2993 | if (!fs_2625) |
|
|
2994 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2995 | else if (!statfs (w->path, &sfs) |
|
|
2996 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2997 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2998 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2999 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3000 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3001 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3002 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3003 | else |
|
|
3004 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2582 | { |
3005 | } |
|
|
3006 | else |
|
|
3007 | { |
|
|
3008 | /* can't use inotify, continue to stat */ |
2583 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3009 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2584 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2585 | |
3010 | |
2586 | /* monitor some parent directory for speedup hints */ |
3011 | /* if path is not there, monitor some parent directory for speedup hints */ |
2587 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
3012 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2588 | /* but an efficiency issue only */ |
3013 | /* but an efficiency issue only */ |
2589 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3014 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2590 | { |
3015 | { |
2591 | char path [4096]; |
3016 | char path [4096]; |
… | |
… | |
2607 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3032 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2608 | } |
3033 | } |
2609 | } |
3034 | } |
2610 | |
3035 | |
2611 | if (w->wd >= 0) |
3036 | if (w->wd >= 0) |
2612 | { |
|
|
2613 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3037 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2614 | |
3038 | |
2615 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3039 | /* now re-arm timer, if required */ |
2616 | /* unless the filesystem it known to be local, we therefore still poll */ |
3040 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2617 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2618 | struct statfs sfs; |
|
|
2619 | |
|
|
2620 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2621 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2622 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2623 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2624 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2625 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2626 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2627 | return; |
|
|
2628 | |
|
|
2629 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2630 | ev_timer_again (EV_A_ &w->timer); |
3041 | ev_timer_again (EV_A_ &w->timer); |
2631 | } |
3042 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2632 | } |
3043 | } |
2633 | |
3044 | |
2634 | static void noinline |
3045 | static void noinline |
2635 | infy_del (EV_P_ ev_stat *w) |
3046 | infy_del (EV_P_ ev_stat *w) |
2636 | { |
3047 | { |
… | |
… | |
2639 | |
3050 | |
2640 | if (wd < 0) |
3051 | if (wd < 0) |
2641 | return; |
3052 | return; |
2642 | |
3053 | |
2643 | w->wd = -2; |
3054 | w->wd = -2; |
2644 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3055 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2645 | wlist_del (&fs_hash [slot].head, (WL)w); |
3056 | wlist_del (&fs_hash [slot].head, (WL)w); |
2646 | |
3057 | |
2647 | /* remove this watcher, if others are watching it, they will rearm */ |
3058 | /* remove this watcher, if others are watching it, they will rearm */ |
2648 | inotify_rm_watch (fs_fd, wd); |
3059 | inotify_rm_watch (fs_fd, wd); |
2649 | } |
3060 | } |
… | |
… | |
2651 | static void noinline |
3062 | static void noinline |
2652 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3063 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2653 | { |
3064 | { |
2654 | if (slot < 0) |
3065 | if (slot < 0) |
2655 | /* overflow, need to check for all hash slots */ |
3066 | /* overflow, need to check for all hash slots */ |
2656 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3067 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2657 | infy_wd (EV_A_ slot, wd, ev); |
3068 | infy_wd (EV_A_ slot, wd, ev); |
2658 | else |
3069 | else |
2659 | { |
3070 | { |
2660 | WL w_; |
3071 | WL w_; |
2661 | |
3072 | |
2662 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3073 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2663 | { |
3074 | { |
2664 | ev_stat *w = (ev_stat *)w_; |
3075 | ev_stat *w = (ev_stat *)w_; |
2665 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3076 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2666 | |
3077 | |
2667 | if (w->wd == wd || wd == -1) |
3078 | if (w->wd == wd || wd == -1) |
2668 | { |
3079 | { |
2669 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3080 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2670 | { |
3081 | { |
2671 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3082 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2672 | w->wd = -1; |
3083 | w->wd = -1; |
2673 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3084 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2674 | } |
3085 | } |
2675 | |
3086 | |
2676 | stat_timer_cb (EV_A_ &w->timer, 0); |
3087 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2681 | |
3092 | |
2682 | static void |
3093 | static void |
2683 | infy_cb (EV_P_ ev_io *w, int revents) |
3094 | infy_cb (EV_P_ ev_io *w, int revents) |
2684 | { |
3095 | { |
2685 | char buf [EV_INOTIFY_BUFSIZE]; |
3096 | char buf [EV_INOTIFY_BUFSIZE]; |
2686 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2687 | int ofs; |
3097 | int ofs; |
2688 | int len = read (fs_fd, buf, sizeof (buf)); |
3098 | int len = read (fs_fd, buf, sizeof (buf)); |
2689 | |
3099 | |
2690 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3100 | for (ofs = 0; ofs < len; ) |
|
|
3101 | { |
|
|
3102 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2691 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3103 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3104 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3105 | } |
2692 | } |
3106 | } |
2693 | |
3107 | |
2694 | inline_size void |
3108 | inline_size void |
2695 | check_2625 (EV_P) |
3109 | ev_check_2625 (EV_P) |
2696 | { |
3110 | { |
2697 | /* kernels < 2.6.25 are borked |
3111 | /* kernels < 2.6.25 are borked |
2698 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3112 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2699 | */ |
3113 | */ |
2700 | struct utsname buf; |
3114 | if (ev_linux_version () < 0x020619) |
2701 | int major, minor, micro; |
|
|
2702 | |
|
|
2703 | if (uname (&buf)) |
|
|
2704 | return; |
3115 | return; |
2705 | |
3116 | |
2706 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2707 | return; |
|
|
2708 | |
|
|
2709 | if (major < 2 |
|
|
2710 | || (major == 2 && minor < 6) |
|
|
2711 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2712 | return; |
|
|
2713 | |
|
|
2714 | fs_2625 = 1; |
3117 | fs_2625 = 1; |
|
|
3118 | } |
|
|
3119 | |
|
|
3120 | inline_size int |
|
|
3121 | infy_newfd (void) |
|
|
3122 | { |
|
|
3123 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3124 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3125 | if (fd >= 0) |
|
|
3126 | return fd; |
|
|
3127 | #endif |
|
|
3128 | return inotify_init (); |
2715 | } |
3129 | } |
2716 | |
3130 | |
2717 | inline_size void |
3131 | inline_size void |
2718 | infy_init (EV_P) |
3132 | infy_init (EV_P) |
2719 | { |
3133 | { |
2720 | if (fs_fd != -2) |
3134 | if (fs_fd != -2) |
2721 | return; |
3135 | return; |
2722 | |
3136 | |
2723 | fs_fd = -1; |
3137 | fs_fd = -1; |
2724 | |
3138 | |
2725 | check_2625 (EV_A); |
3139 | ev_check_2625 (EV_A); |
2726 | |
3140 | |
2727 | fs_fd = inotify_init (); |
3141 | fs_fd = infy_newfd (); |
2728 | |
3142 | |
2729 | if (fs_fd >= 0) |
3143 | if (fs_fd >= 0) |
2730 | { |
3144 | { |
|
|
3145 | fd_intern (fs_fd); |
2731 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3146 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2732 | ev_set_priority (&fs_w, EV_MAXPRI); |
3147 | ev_set_priority (&fs_w, EV_MAXPRI); |
2733 | ev_io_start (EV_A_ &fs_w); |
3148 | ev_io_start (EV_A_ &fs_w); |
|
|
3149 | ev_unref (EV_A); |
2734 | } |
3150 | } |
2735 | } |
3151 | } |
2736 | |
3152 | |
2737 | inline_size void |
3153 | inline_size void |
2738 | infy_fork (EV_P) |
3154 | infy_fork (EV_P) |
… | |
… | |
2740 | int slot; |
3156 | int slot; |
2741 | |
3157 | |
2742 | if (fs_fd < 0) |
3158 | if (fs_fd < 0) |
2743 | return; |
3159 | return; |
2744 | |
3160 | |
|
|
3161 | ev_ref (EV_A); |
|
|
3162 | ev_io_stop (EV_A_ &fs_w); |
2745 | close (fs_fd); |
3163 | close (fs_fd); |
2746 | fs_fd = inotify_init (); |
3164 | fs_fd = infy_newfd (); |
2747 | |
3165 | |
|
|
3166 | if (fs_fd >= 0) |
|
|
3167 | { |
|
|
3168 | fd_intern (fs_fd); |
|
|
3169 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3170 | ev_io_start (EV_A_ &fs_w); |
|
|
3171 | ev_unref (EV_A); |
|
|
3172 | } |
|
|
3173 | |
2748 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3174 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2749 | { |
3175 | { |
2750 | WL w_ = fs_hash [slot].head; |
3176 | WL w_ = fs_hash [slot].head; |
2751 | fs_hash [slot].head = 0; |
3177 | fs_hash [slot].head = 0; |
2752 | |
3178 | |
2753 | while (w_) |
3179 | while (w_) |
… | |
… | |
2758 | w->wd = -1; |
3184 | w->wd = -1; |
2759 | |
3185 | |
2760 | if (fs_fd >= 0) |
3186 | if (fs_fd >= 0) |
2761 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3187 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2762 | else |
3188 | else |
|
|
3189 | { |
|
|
3190 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3191 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2763 | ev_timer_again (EV_A_ &w->timer); |
3192 | ev_timer_again (EV_A_ &w->timer); |
|
|
3193 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3194 | } |
2764 | } |
3195 | } |
2765 | } |
3196 | } |
2766 | } |
3197 | } |
2767 | |
3198 | |
2768 | #endif |
3199 | #endif |
… | |
… | |
2785 | static void noinline |
3216 | static void noinline |
2786 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3217 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2787 | { |
3218 | { |
2788 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3219 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2789 | |
3220 | |
2790 | /* we copy this here each the time so that */ |
3221 | ev_statdata prev = w->attr; |
2791 | /* prev has the old value when the callback gets invoked */ |
|
|
2792 | w->prev = w->attr; |
|
|
2793 | ev_stat_stat (EV_A_ w); |
3222 | ev_stat_stat (EV_A_ w); |
2794 | |
3223 | |
2795 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3224 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2796 | if ( |
3225 | if ( |
2797 | w->prev.st_dev != w->attr.st_dev |
3226 | prev.st_dev != w->attr.st_dev |
2798 | || w->prev.st_ino != w->attr.st_ino |
3227 | || prev.st_ino != w->attr.st_ino |
2799 | || w->prev.st_mode != w->attr.st_mode |
3228 | || prev.st_mode != w->attr.st_mode |
2800 | || w->prev.st_nlink != w->attr.st_nlink |
3229 | || prev.st_nlink != w->attr.st_nlink |
2801 | || w->prev.st_uid != w->attr.st_uid |
3230 | || prev.st_uid != w->attr.st_uid |
2802 | || w->prev.st_gid != w->attr.st_gid |
3231 | || prev.st_gid != w->attr.st_gid |
2803 | || w->prev.st_rdev != w->attr.st_rdev |
3232 | || prev.st_rdev != w->attr.st_rdev |
2804 | || w->prev.st_size != w->attr.st_size |
3233 | || prev.st_size != w->attr.st_size |
2805 | || w->prev.st_atime != w->attr.st_atime |
3234 | || prev.st_atime != w->attr.st_atime |
2806 | || w->prev.st_mtime != w->attr.st_mtime |
3235 | || prev.st_mtime != w->attr.st_mtime |
2807 | || w->prev.st_ctime != w->attr.st_ctime |
3236 | || prev.st_ctime != w->attr.st_ctime |
2808 | ) { |
3237 | ) { |
|
|
3238 | /* we only update w->prev on actual differences */ |
|
|
3239 | /* in case we test more often than invoke the callback, */ |
|
|
3240 | /* to ensure that prev is always different to attr */ |
|
|
3241 | w->prev = prev; |
|
|
3242 | |
2809 | #if EV_USE_INOTIFY |
3243 | #if EV_USE_INOTIFY |
2810 | if (fs_fd >= 0) |
3244 | if (fs_fd >= 0) |
2811 | { |
3245 | { |
2812 | infy_del (EV_A_ w); |
3246 | infy_del (EV_A_ w); |
2813 | infy_add (EV_A_ w); |
3247 | infy_add (EV_A_ w); |
… | |
… | |
2838 | |
3272 | |
2839 | if (fs_fd >= 0) |
3273 | if (fs_fd >= 0) |
2840 | infy_add (EV_A_ w); |
3274 | infy_add (EV_A_ w); |
2841 | else |
3275 | else |
2842 | #endif |
3276 | #endif |
|
|
3277 | { |
2843 | ev_timer_again (EV_A_ &w->timer); |
3278 | ev_timer_again (EV_A_ &w->timer); |
|
|
3279 | ev_unref (EV_A); |
|
|
3280 | } |
2844 | |
3281 | |
2845 | ev_start (EV_A_ (W)w, 1); |
3282 | ev_start (EV_A_ (W)w, 1); |
2846 | |
3283 | |
2847 | EV_FREQUENT_CHECK; |
3284 | EV_FREQUENT_CHECK; |
2848 | } |
3285 | } |
… | |
… | |
2857 | EV_FREQUENT_CHECK; |
3294 | EV_FREQUENT_CHECK; |
2858 | |
3295 | |
2859 | #if EV_USE_INOTIFY |
3296 | #if EV_USE_INOTIFY |
2860 | infy_del (EV_A_ w); |
3297 | infy_del (EV_A_ w); |
2861 | #endif |
3298 | #endif |
|
|
3299 | |
|
|
3300 | if (ev_is_active (&w->timer)) |
|
|
3301 | { |
|
|
3302 | ev_ref (EV_A); |
2862 | ev_timer_stop (EV_A_ &w->timer); |
3303 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3304 | } |
2863 | |
3305 | |
2864 | ev_stop (EV_A_ (W)w); |
3306 | ev_stop (EV_A_ (W)w); |
2865 | |
3307 | |
2866 | EV_FREQUENT_CHECK; |
3308 | EV_FREQUENT_CHECK; |
2867 | } |
3309 | } |
… | |
… | |
2912 | |
3354 | |
2913 | EV_FREQUENT_CHECK; |
3355 | EV_FREQUENT_CHECK; |
2914 | } |
3356 | } |
2915 | #endif |
3357 | #endif |
2916 | |
3358 | |
|
|
3359 | #if EV_PREPARE_ENABLE |
2917 | void |
3360 | void |
2918 | ev_prepare_start (EV_P_ ev_prepare *w) |
3361 | ev_prepare_start (EV_P_ ev_prepare *w) |
2919 | { |
3362 | { |
2920 | if (expect_false (ev_is_active (w))) |
3363 | if (expect_false (ev_is_active (w))) |
2921 | return; |
3364 | return; |
… | |
… | |
2947 | |
3390 | |
2948 | ev_stop (EV_A_ (W)w); |
3391 | ev_stop (EV_A_ (W)w); |
2949 | |
3392 | |
2950 | EV_FREQUENT_CHECK; |
3393 | EV_FREQUENT_CHECK; |
2951 | } |
3394 | } |
|
|
3395 | #endif |
2952 | |
3396 | |
|
|
3397 | #if EV_CHECK_ENABLE |
2953 | void |
3398 | void |
2954 | ev_check_start (EV_P_ ev_check *w) |
3399 | ev_check_start (EV_P_ ev_check *w) |
2955 | { |
3400 | { |
2956 | if (expect_false (ev_is_active (w))) |
3401 | if (expect_false (ev_is_active (w))) |
2957 | return; |
3402 | return; |
… | |
… | |
2983 | |
3428 | |
2984 | ev_stop (EV_A_ (W)w); |
3429 | ev_stop (EV_A_ (W)w); |
2985 | |
3430 | |
2986 | EV_FREQUENT_CHECK; |
3431 | EV_FREQUENT_CHECK; |
2987 | } |
3432 | } |
|
|
3433 | #endif |
2988 | |
3434 | |
2989 | #if EV_EMBED_ENABLE |
3435 | #if EV_EMBED_ENABLE |
2990 | void noinline |
3436 | void noinline |
2991 | ev_embed_sweep (EV_P_ ev_embed *w) |
3437 | ev_embed_sweep (EV_P_ ev_embed *w) |
2992 | { |
3438 | { |
2993 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3439 | ev_run (w->other, EVRUN_NOWAIT); |
2994 | } |
3440 | } |
2995 | |
3441 | |
2996 | static void |
3442 | static void |
2997 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3443 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2998 | { |
3444 | { |
2999 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3445 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3000 | |
3446 | |
3001 | if (ev_cb (w)) |
3447 | if (ev_cb (w)) |
3002 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3448 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3003 | else |
3449 | else |
3004 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3450 | ev_run (w->other, EVRUN_NOWAIT); |
3005 | } |
3451 | } |
3006 | |
3452 | |
3007 | static void |
3453 | static void |
3008 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3454 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3009 | { |
3455 | { |
3010 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3456 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3011 | |
3457 | |
3012 | { |
3458 | { |
3013 | struct ev_loop *loop = w->other; |
3459 | EV_P = w->other; |
3014 | |
3460 | |
3015 | while (fdchangecnt) |
3461 | while (fdchangecnt) |
3016 | { |
3462 | { |
3017 | fd_reify (EV_A); |
3463 | fd_reify (EV_A); |
3018 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3464 | ev_run (EV_A_ EVRUN_NOWAIT); |
3019 | } |
3465 | } |
3020 | } |
3466 | } |
3021 | } |
3467 | } |
3022 | |
3468 | |
3023 | static void |
3469 | static void |
… | |
… | |
3026 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3472 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3027 | |
3473 | |
3028 | ev_embed_stop (EV_A_ w); |
3474 | ev_embed_stop (EV_A_ w); |
3029 | |
3475 | |
3030 | { |
3476 | { |
3031 | struct ev_loop *loop = w->other; |
3477 | EV_P = w->other; |
3032 | |
3478 | |
3033 | ev_loop_fork (EV_A); |
3479 | ev_loop_fork (EV_A); |
3034 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3480 | ev_run (EV_A_ EVRUN_NOWAIT); |
3035 | } |
3481 | } |
3036 | |
3482 | |
3037 | ev_embed_start (EV_A_ w); |
3483 | ev_embed_start (EV_A_ w); |
3038 | } |
3484 | } |
3039 | |
3485 | |
… | |
… | |
3050 | { |
3496 | { |
3051 | if (expect_false (ev_is_active (w))) |
3497 | if (expect_false (ev_is_active (w))) |
3052 | return; |
3498 | return; |
3053 | |
3499 | |
3054 | { |
3500 | { |
3055 | struct ev_loop *loop = w->other; |
3501 | EV_P = w->other; |
3056 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3502 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3057 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3503 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3058 | } |
3504 | } |
3059 | |
3505 | |
3060 | EV_FREQUENT_CHECK; |
3506 | EV_FREQUENT_CHECK; |
… | |
… | |
3087 | |
3533 | |
3088 | ev_io_stop (EV_A_ &w->io); |
3534 | ev_io_stop (EV_A_ &w->io); |
3089 | ev_prepare_stop (EV_A_ &w->prepare); |
3535 | ev_prepare_stop (EV_A_ &w->prepare); |
3090 | ev_fork_stop (EV_A_ &w->fork); |
3536 | ev_fork_stop (EV_A_ &w->fork); |
3091 | |
3537 | |
|
|
3538 | ev_stop (EV_A_ (W)w); |
|
|
3539 | |
3092 | EV_FREQUENT_CHECK; |
3540 | EV_FREQUENT_CHECK; |
3093 | } |
3541 | } |
3094 | #endif |
3542 | #endif |
3095 | |
3543 | |
3096 | #if EV_FORK_ENABLE |
3544 | #if EV_FORK_ENABLE |
… | |
… | |
3136 | ev_async_start (EV_P_ ev_async *w) |
3584 | ev_async_start (EV_P_ ev_async *w) |
3137 | { |
3585 | { |
3138 | if (expect_false (ev_is_active (w))) |
3586 | if (expect_false (ev_is_active (w))) |
3139 | return; |
3587 | return; |
3140 | |
3588 | |
|
|
3589 | w->sent = 0; |
|
|
3590 | |
3141 | evpipe_init (EV_A); |
3591 | evpipe_init (EV_A); |
3142 | |
3592 | |
3143 | EV_FREQUENT_CHECK; |
3593 | EV_FREQUENT_CHECK; |
3144 | |
3594 | |
3145 | ev_start (EV_A_ (W)w, ++asynccnt); |
3595 | ev_start (EV_A_ (W)w, ++asynccnt); |
… | |
… | |
3172 | |
3622 | |
3173 | void |
3623 | void |
3174 | ev_async_send (EV_P_ ev_async *w) |
3624 | ev_async_send (EV_P_ ev_async *w) |
3175 | { |
3625 | { |
3176 | w->sent = 1; |
3626 | w->sent = 1; |
3177 | evpipe_write (EV_A_ &gotasync); |
3627 | evpipe_write (EV_A_ &async_pending); |
3178 | } |
3628 | } |
3179 | #endif |
3629 | #endif |
3180 | |
3630 | |
3181 | /*****************************************************************************/ |
3631 | /*****************************************************************************/ |
3182 | |
3632 | |
… | |
… | |
3222 | { |
3672 | { |
3223 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3673 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3224 | |
3674 | |
3225 | if (expect_false (!once)) |
3675 | if (expect_false (!once)) |
3226 | { |
3676 | { |
3227 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3677 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3228 | return; |
3678 | return; |
3229 | } |
3679 | } |
3230 | |
3680 | |
3231 | once->cb = cb; |
3681 | once->cb = cb; |
3232 | once->arg = arg; |
3682 | once->arg = arg; |
… | |
… | |
3319 | if (types & EV_ASYNC) |
3769 | if (types & EV_ASYNC) |
3320 | for (i = asynccnt; i--; ) |
3770 | for (i = asynccnt; i--; ) |
3321 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3771 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3322 | #endif |
3772 | #endif |
3323 | |
3773 | |
|
|
3774 | #if EV_PREPARE_ENABLE |
3324 | if (types & EV_PREPARE) |
3775 | if (types & EV_PREPARE) |
3325 | for (i = preparecnt; i--; ) |
3776 | for (i = preparecnt; i--; ) |
3326 | #if EV_EMBED_ENABLE |
3777 | # if EV_EMBED_ENABLE |
3327 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3778 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3328 | #endif |
3779 | # endif |
3329 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3780 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3781 | #endif |
3330 | |
3782 | |
|
|
3783 | #if EV_CHECK_ENABLE |
3331 | if (types & EV_CHECK) |
3784 | if (types & EV_CHECK) |
3332 | for (i = checkcnt; i--; ) |
3785 | for (i = checkcnt; i--; ) |
3333 | cb (EV_A_ EV_CHECK, checks [i]); |
3786 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3787 | #endif |
3334 | |
3788 | |
|
|
3789 | #if EV_SIGNAL_ENABLE |
3335 | if (types & EV_SIGNAL) |
3790 | if (types & EV_SIGNAL) |
3336 | for (i = 0; i < signalmax; ++i) |
3791 | for (i = 0; i < EV_NSIG - 1; ++i) |
3337 | for (wl = signals [i].head; wl; ) |
3792 | for (wl = signals [i].head; wl; ) |
3338 | { |
3793 | { |
3339 | wn = wl->next; |
3794 | wn = wl->next; |
3340 | cb (EV_A_ EV_SIGNAL, wl); |
3795 | cb (EV_A_ EV_SIGNAL, wl); |
3341 | wl = wn; |
3796 | wl = wn; |
3342 | } |
3797 | } |
|
|
3798 | #endif |
3343 | |
3799 | |
|
|
3800 | #if EV_CHILD_ENABLE |
3344 | if (types & EV_CHILD) |
3801 | if (types & EV_CHILD) |
3345 | for (i = EV_PID_HASHSIZE; i--; ) |
3802 | for (i = (EV_PID_HASHSIZE); i--; ) |
3346 | for (wl = childs [i]; wl; ) |
3803 | for (wl = childs [i]; wl; ) |
3347 | { |
3804 | { |
3348 | wn = wl->next; |
3805 | wn = wl->next; |
3349 | cb (EV_A_ EV_CHILD, wl); |
3806 | cb (EV_A_ EV_CHILD, wl); |
3350 | wl = wn; |
3807 | wl = wn; |
3351 | } |
3808 | } |
|
|
3809 | #endif |
3352 | /* EV_STAT 0x00001000 /* stat data changed */ |
3810 | /* EV_STAT 0x00001000 /* stat data changed */ |
3353 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3811 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3354 | } |
3812 | } |
3355 | #endif |
3813 | #endif |
3356 | |
3814 | |
3357 | #if EV_MULTIPLICITY |
3815 | #if EV_MULTIPLICITY |
3358 | #include "ev_wrap.h" |
3816 | #include "ev_wrap.h" |
3359 | #endif |
3817 | #endif |
3360 | |
3818 | |
3361 | #ifdef __cplusplus |
3819 | EV_CPP(}) |
3362 | } |
|
|
3363 | #endif |
|
|
3364 | |
3820 | |