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 |
… | |
… | |
57 | # endif |
53 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
54 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
55 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
56 | # endif |
61 | # endif |
57 | # endif |
|
|
58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
59 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
60 | # endif |
63 | |
61 | |
64 | # if HAVE_CLOCK_GETTIME |
62 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
63 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
64 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
75 | # ifndef EV_USE_REALTIME |
73 | # ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 0 |
74 | # define EV_USE_REALTIME 0 |
77 | # endif |
75 | # endif |
78 | # endif |
76 | # endif |
79 | |
77 | |
|
|
78 | # if HAVE_NANOSLEEP |
80 | # ifndef EV_USE_NANOSLEEP |
79 | # ifndef EV_USE_NANOSLEEP |
81 | # if HAVE_NANOSLEEP |
|
|
82 | # define EV_USE_NANOSLEEP 1 |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
81 | # endif |
83 | # else |
82 | # else |
|
|
83 | # undef EV_USE_NANOSLEEP |
84 | # 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 |
85 | # endif |
90 | # endif |
|
|
91 | # else |
|
|
92 | # undef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT 0 |
86 | # endif |
94 | # endif |
87 | |
95 | |
|
|
96 | # if HAVE_POLL && HAVE_POLL_H |
88 | # ifndef EV_USE_SELECT |
97 | # ifndef EV_USE_POLL |
89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
90 | # define EV_USE_SELECT 1 |
|
|
91 | # else |
|
|
92 | # define EV_USE_SELECT 0 |
|
|
93 | # endif |
99 | # endif |
94 | # endif |
|
|
95 | |
|
|
96 | # ifndef EV_USE_POLL |
|
|
97 | # if HAVE_POLL && HAVE_POLL_H |
|
|
98 | # define EV_USE_POLL 1 |
|
|
99 | # else |
100 | # else |
|
|
101 | # undef EV_USE_POLL |
100 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
101 | # endif |
|
|
102 | # endif |
103 | # endif |
103 | |
104 | |
104 | # ifndef EV_USE_EPOLL |
|
|
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
106 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
107 | # else |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
108 | # define EV_USE_EPOLL 0 |
|
|
109 | # endif |
108 | # endif |
|
|
109 | # else |
|
|
110 | # undef EV_USE_EPOLL |
|
|
111 | # define EV_USE_EPOLL 0 |
110 | # endif |
112 | # endif |
111 | |
113 | |
|
|
114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
112 | # ifndef EV_USE_KQUEUE |
115 | # ifndef EV_USE_KQUEUE |
113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
114 | # define EV_USE_KQUEUE 1 |
|
|
115 | # else |
|
|
116 | # define EV_USE_KQUEUE 0 |
|
|
117 | # endif |
117 | # endif |
|
|
118 | # else |
|
|
119 | # undef EV_USE_KQUEUE |
|
|
120 | # define EV_USE_KQUEUE 0 |
118 | # endif |
121 | # endif |
119 | |
122 | |
120 | # ifndef EV_USE_PORT |
|
|
121 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
122 | # define EV_USE_PORT 1 |
124 | # ifndef EV_USE_PORT |
123 | # else |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
124 | # define EV_USE_PORT 0 |
|
|
125 | # endif |
126 | # endif |
|
|
127 | # else |
|
|
128 | # undef EV_USE_PORT |
|
|
129 | # define EV_USE_PORT 0 |
126 | # endif |
130 | # endif |
127 | |
131 | |
128 | # ifndef EV_USE_INOTIFY |
|
|
129 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
130 | # define EV_USE_INOTIFY 1 |
133 | # ifndef EV_USE_INOTIFY |
131 | # else |
|
|
132 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
133 | # endif |
135 | # endif |
|
|
136 | # else |
|
|
137 | # undef EV_USE_INOTIFY |
|
|
138 | # define EV_USE_INOTIFY 0 |
134 | # endif |
139 | # endif |
135 | |
140 | |
|
|
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
136 | # ifndef EV_USE_EVENTFD |
142 | # ifndef EV_USE_SIGNALFD |
137 | # if HAVE_EVENTFD |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
138 | # define EV_USE_EVENTFD 1 |
|
|
139 | # else |
|
|
140 | # define EV_USE_EVENTFD 0 |
|
|
141 | # endif |
144 | # endif |
|
|
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 |
|
|
154 | # else |
|
|
155 | # undef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD 0 |
142 | # endif |
157 | # endif |
143 | |
158 | |
144 | #endif |
159 | #endif |
145 | |
160 | |
146 | #include <math.h> |
161 | #include <math.h> |
147 | #include <stdlib.h> |
162 | #include <stdlib.h> |
|
|
163 | #include <string.h> |
148 | #include <fcntl.h> |
164 | #include <fcntl.h> |
149 | #include <stddef.h> |
165 | #include <stddef.h> |
150 | |
166 | |
151 | #include <stdio.h> |
167 | #include <stdio.h> |
152 | |
168 | |
153 | #include <assert.h> |
169 | #include <assert.h> |
154 | #include <errno.h> |
170 | #include <errno.h> |
155 | #include <sys/types.h> |
171 | #include <sys/types.h> |
156 | #include <time.h> |
172 | #include <time.h> |
|
|
173 | #include <limits.h> |
157 | |
174 | |
158 | #include <signal.h> |
175 | #include <signal.h> |
159 | |
176 | |
160 | #ifdef EV_H |
177 | #ifdef EV_H |
161 | # include EV_H |
178 | # include EV_H |
162 | #else |
179 | #else |
163 | # include "ev.h" |
180 | # include "ev.h" |
164 | #endif |
181 | #endif |
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|
182 | |
|
|
183 | EV_CPP(extern "C" {) |
165 | |
184 | |
166 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
167 | # include <sys/time.h> |
186 | # include <sys/time.h> |
168 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
169 | # include <unistd.h> |
188 | # include <unistd.h> |
… | |
… | |
172 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
173 | # include <windows.h> |
192 | # include <windows.h> |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
176 | # endif |
195 | # endif |
|
|
196 | # undef EV_AVOID_STDIO |
177 | #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, |
|
|
201 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
202 | * ordered to have a vacuum, or they do anything for money. |
|
|
203 | * This might help. Or not. |
|
|
204 | */ |
|
|
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
178 | |
206 | |
179 | /* 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) |
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214 | #elif defined(_NSIG) |
|
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215 | # define EV_NSIG (_NSIG) |
|
|
216 | #elif defined (SIGMAX) |
|
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217 | # define EV_NSIG (SIGMAX+1) |
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218 | #elif defined (SIG_MAX) |
|
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219 | # define EV_NSIG (SIG_MAX+1) |
|
|
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) |
|
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225 | # define EV_NSIG (MAX_SIG+1) |
|
|
226 | #elif defined (SIGARRAYSIZE) |
|
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227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
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 |
180 | |
236 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
238 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
184 | # else |
240 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
186 | # endif |
242 | # endif |
187 | #endif |
243 | #endif |
188 | |
244 | |
189 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
191 | # define EV_USE_MONOTONIC 1 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
192 | # else |
248 | # else |
193 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
250 | # endif |
195 | #endif |
251 | #endif |
196 | |
252 | |
… | |
… | |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
255 | #endif |
200 | |
256 | |
201 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
258 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
204 | # else |
260 | # else |
205 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
206 | # endif |
262 | # endif |
207 | #endif |
263 | #endif |
208 | |
264 | |
209 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
210 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
211 | #endif |
267 | #endif |
212 | |
268 | |
213 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
214 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
215 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
216 | # else |
272 | # else |
217 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
218 | # endif |
274 | # endif |
219 | #endif |
275 | #endif |
220 | |
276 | |
221 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
223 | # define EV_USE_EPOLL 1 |
279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
224 | # else |
280 | # else |
225 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
226 | # endif |
282 | # endif |
227 | #endif |
283 | #endif |
228 | |
284 | |
… | |
… | |
234 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
235 | #endif |
291 | #endif |
236 | |
292 | |
237 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
239 | # define EV_USE_INOTIFY 1 |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
240 | # else |
296 | # else |
241 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
242 | # endif |
298 | # endif |
243 | #endif |
299 | #endif |
244 | |
300 | |
245 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
246 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
247 | # define EV_PID_HASHSIZE 1 |
|
|
248 | # else |
|
|
249 | # define EV_PID_HASHSIZE 16 |
|
|
250 | # endif |
|
|
251 | #endif |
303 | #endif |
252 | |
304 | |
253 | #ifndef EV_INOTIFY_HASHSIZE |
305 | #ifndef EV_INOTIFY_HASHSIZE |
254 | # if EV_MINIMAL |
306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
255 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
256 | # else |
|
|
257 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
258 | # endif |
|
|
259 | #endif |
307 | #endif |
260 | |
308 | |
261 | #ifndef EV_USE_EVENTFD |
309 | #ifndef EV_USE_EVENTFD |
262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
263 | # define EV_USE_EVENTFD 1 |
311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
264 | # else |
312 | # else |
265 | # 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 |
266 | # endif |
322 | # endif |
267 | #endif |
323 | #endif |
268 | |
324 | |
269 | #if 0 /* debugging */ |
325 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
326 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
327 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
328 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
329 | #endif |
274 | |
330 | |
275 | #ifndef EV_VERIFY |
331 | #ifndef EV_VERIFY |
276 | # define EV_VERIFY !EV_MINIMAL |
332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
277 | #endif |
333 | #endif |
278 | |
334 | |
279 | #ifndef EV_USE_4HEAP |
335 | #ifndef EV_USE_4HEAP |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
281 | #endif |
337 | #endif |
282 | |
338 | |
283 | #ifndef EV_HEAP_CACHE_AT |
339 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
341 | #endif |
|
|
342 | |
|
|
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
344 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
345 | #if EV_USE_CLOCK_SYSCALL |
|
|
346 | # include <syscall.h> |
|
|
347 | # ifdef SYS_clock_gettime |
|
|
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
349 | # undef EV_USE_MONOTONIC |
|
|
350 | # define EV_USE_MONOTONIC 1 |
|
|
351 | # else |
|
|
352 | # undef EV_USE_CLOCK_SYSCALL |
|
|
353 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
354 | # endif |
285 | #endif |
355 | #endif |
286 | |
356 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
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 |
288 | |
364 | |
289 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
291 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
292 | #endif |
368 | #endif |
… | |
… | |
320 | |
396 | |
321 | #if EV_SELECT_IS_WINSOCKET |
397 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
398 | # include <winsock.h> |
323 | #endif |
399 | #endif |
324 | |
400 | |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
401 | #if EV_USE_EVENTFD |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
402 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
336 | # include <stdint.h> |
403 | # include <stdint.h> |
337 | # ifdef __cplusplus |
404 | # ifndef EFD_NONBLOCK |
338 | extern "C" { |
405 | # define EFD_NONBLOCK O_NONBLOCK |
339 | # endif |
406 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
407 | # ifndef EFD_CLOEXEC |
341 | # ifdef __cplusplus |
408 | # ifdef O_CLOEXEC |
342 | } |
409 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
410 | # else |
|
|
411 | # define EFD_CLOEXEC 02000000 |
|
|
412 | # endif |
343 | # endif |
413 | # endif |
|
|
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
415 | #endif |
|
|
416 | |
|
|
417 | #if EV_USE_SIGNALFD |
|
|
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
419 | # include <stdint.h> |
|
|
420 | # ifndef SFD_NONBLOCK |
|
|
421 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
422 | # endif |
|
|
423 | # ifndef SFD_CLOEXEC |
|
|
424 | # ifdef O_CLOEXEC |
|
|
425 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
426 | # else |
|
|
427 | # define SFD_CLOEXEC 02000000 |
|
|
428 | # endif |
|
|
429 | # endif |
|
|
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
431 | |
|
|
432 | struct signalfd_siginfo |
|
|
433 | { |
|
|
434 | uint32_t ssi_signo; |
|
|
435 | char pad[128 - sizeof (uint32_t)]; |
|
|
436 | }; |
344 | #endif |
437 | #endif |
345 | |
438 | |
346 | /**/ |
439 | /**/ |
347 | |
440 | |
348 | #if EV_VERIFY >= 3 |
441 | #if EV_VERIFY >= 3 |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
442 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
350 | #else |
443 | #else |
351 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | # define EV_FREQUENT_CHECK do { } while (0) |
352 | #endif |
445 | #endif |
353 | |
446 | |
354 | /* |
447 | /* |
… | |
… | |
361 | */ |
454 | */ |
362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
363 | |
456 | |
364 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
365 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
459 | |
|
|
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
367 | |
462 | |
368 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
370 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
371 | #else |
466 | #else |
… | |
… | |
378 | |
473 | |
379 | #define expect_false(expr) expect ((expr) != 0, 0) |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
380 | #define expect_true(expr) expect ((expr) != 0, 1) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
381 | #define inline_size static inline |
476 | #define inline_size static inline |
382 | |
477 | |
383 | #if EV_MINIMAL |
478 | #if EV_FEATURE_CODE |
|
|
479 | # define inline_speed static inline |
|
|
480 | #else |
384 | # define inline_speed static noinline |
481 | # define inline_speed static noinline |
|
|
482 | #endif |
|
|
483 | |
|
|
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
485 | |
|
|
486 | #if EV_MINPRI == EV_MAXPRI |
|
|
487 | # define ABSPRI(w) (((W)w), 0) |
385 | #else |
488 | #else |
386 | # define inline_speed static inline |
|
|
387 | #endif |
|
|
388 | |
|
|
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
490 | #endif |
391 | |
491 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
494 | |
395 | typedef ev_watcher *W; |
495 | typedef ev_watcher *W; |
… | |
… | |
399 | #define ev_active(w) ((W)(w))->active |
499 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
500 | #define ev_at(w) ((WT)(w))->at |
401 | |
501 | |
402 | #if EV_USE_REALTIME |
502 | #if EV_USE_REALTIME |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
503 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
504 | /* giving it a reasonably high chance of working on typical architectures */ |
405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
505 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
406 | #endif |
506 | #endif |
407 | |
507 | |
408 | #if EV_USE_MONOTONIC |
508 | #if EV_USE_MONOTONIC |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
410 | #endif |
510 | #endif |
411 | |
511 | |
|
|
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
514 | #endif |
|
|
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_CLOSE_FD |
|
|
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
520 | #endif |
|
|
521 | |
412 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
413 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
414 | #endif |
524 | #endif |
415 | |
525 | |
416 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
|
|
527 | |
|
|
528 | static unsigned int noinline |
|
|
529 | ev_linux_version (void) |
|
|
530 | { |
|
|
531 | #ifdef __linux |
|
|
532 | struct utsname buf; |
|
|
533 | unsigned int v; |
|
|
534 | int i; |
|
|
535 | char *p = buf.release; |
|
|
536 | |
|
|
537 | if (uname (&buf)) |
|
|
538 | return 0; |
|
|
539 | |
|
|
540 | for (i = 3+1; --i; ) |
|
|
541 | { |
|
|
542 | unsigned int c = 0; |
|
|
543 | |
|
|
544 | for (;;) |
|
|
545 | { |
|
|
546 | if (*p >= '0' && *p <= '9') |
|
|
547 | c = c * 10 + *p++ - '0'; |
|
|
548 | else |
|
|
549 | { |
|
|
550 | p += *p == '.'; |
|
|
551 | break; |
|
|
552 | } |
|
|
553 | } |
|
|
554 | |
|
|
555 | v = (v << 8) | c; |
|
|
556 | } |
|
|
557 | |
|
|
558 | return v; |
|
|
559 | #else |
|
|
560 | return 0; |
|
|
561 | #endif |
|
|
562 | } |
|
|
563 | |
|
|
564 | /*****************************************************************************/ |
|
|
565 | |
|
|
566 | #if EV_AVOID_STDIO |
|
|
567 | static void noinline |
|
|
568 | ev_printerr (const char *msg) |
|
|
569 | { |
|
|
570 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
571 | } |
|
|
572 | #endif |
417 | |
573 | |
418 | static void (*syserr_cb)(const char *msg); |
574 | static void (*syserr_cb)(const char *msg); |
419 | |
575 | |
420 | void |
576 | void |
421 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
577 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
431 | |
587 | |
432 | if (syserr_cb) |
588 | if (syserr_cb) |
433 | syserr_cb (msg); |
589 | syserr_cb (msg); |
434 | else |
590 | else |
435 | { |
591 | { |
|
|
592 | #if EV_AVOID_STDIO |
|
|
593 | const char *err = strerror (errno); |
|
|
594 | |
|
|
595 | ev_printerr (msg); |
|
|
596 | ev_printerr (": "); |
|
|
597 | ev_printerr (err); |
|
|
598 | ev_printerr ("\n"); |
|
|
599 | #else |
436 | perror (msg); |
600 | perror (msg); |
|
|
601 | #endif |
437 | abort (); |
602 | abort (); |
438 | } |
603 | } |
439 | } |
604 | } |
440 | |
605 | |
441 | static void * |
606 | static void * |
442 | ev_realloc_emul (void *ptr, long size) |
607 | ev_realloc_emul (void *ptr, long size) |
443 | { |
608 | { |
|
|
609 | #if __GLIBC__ |
|
|
610 | return realloc (ptr, size); |
|
|
611 | #else |
444 | /* some systems, notably openbsd and darwin, fail to properly |
612 | /* some systems, notably openbsd and darwin, fail to properly |
445 | * implement realloc (x, 0) (as required by both ansi c-98 and |
613 | * implement realloc (x, 0) (as required by both ansi c-89 and |
446 | * the single unix specification, so work around them here. |
614 | * the single unix specification, so work around them here. |
447 | */ |
615 | */ |
448 | |
616 | |
449 | if (size) |
617 | if (size) |
450 | return realloc (ptr, size); |
618 | return realloc (ptr, size); |
451 | |
619 | |
452 | free (ptr); |
620 | free (ptr); |
453 | return 0; |
621 | return 0; |
|
|
622 | #endif |
454 | } |
623 | } |
455 | |
624 | |
456 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
625 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
457 | |
626 | |
458 | void |
627 | void |
… | |
… | |
466 | { |
635 | { |
467 | ptr = alloc (ptr, size); |
636 | ptr = alloc (ptr, size); |
468 | |
637 | |
469 | if (!ptr && size) |
638 | if (!ptr && size) |
470 | { |
639 | { |
|
|
640 | #if EV_AVOID_STDIO |
|
|
641 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
642 | #else |
471 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
643 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
644 | #endif |
472 | abort (); |
645 | abort (); |
473 | } |
646 | } |
474 | |
647 | |
475 | return ptr; |
648 | return ptr; |
476 | } |
649 | } |
… | |
… | |
478 | #define ev_malloc(size) ev_realloc (0, (size)) |
651 | #define ev_malloc(size) ev_realloc (0, (size)) |
479 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
652 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
480 | |
653 | |
481 | /*****************************************************************************/ |
654 | /*****************************************************************************/ |
482 | |
655 | |
|
|
656 | /* set in reify when reification needed */ |
|
|
657 | #define EV_ANFD_REIFY 1 |
|
|
658 | |
483 | /* file descriptor info structure */ |
659 | /* file descriptor info structure */ |
484 | typedef struct |
660 | typedef struct |
485 | { |
661 | { |
486 | WL head; |
662 | WL head; |
487 | unsigned char events; /* the events watched for */ |
663 | unsigned char events; /* the events watched for */ |
488 | unsigned char reify; /* flag set when this ANFD needs reification */ |
664 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
489 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
665 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
490 | unsigned char unused; |
666 | unsigned char unused; |
491 | #if EV_USE_EPOLL |
667 | #if EV_USE_EPOLL |
492 | unsigned int egen; /* generation counter to counter epoll bugs */ |
668 | unsigned int egen; /* generation counter to counter epoll bugs */ |
493 | #endif |
669 | #endif |
… | |
… | |
555 | |
731 | |
556 | static int ev_default_loop_ptr; |
732 | static int ev_default_loop_ptr; |
557 | |
733 | |
558 | #endif |
734 | #endif |
559 | |
735 | |
|
|
736 | #if EV_FEATURE_API |
|
|
737 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
738 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
739 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
740 | #else |
|
|
741 | # define EV_RELEASE_CB (void)0 |
|
|
742 | # define EV_ACQUIRE_CB (void)0 |
|
|
743 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
744 | #endif |
|
|
745 | |
|
|
746 | #define EVBREAK_RECURSE 0x80 |
|
|
747 | |
560 | /*****************************************************************************/ |
748 | /*****************************************************************************/ |
561 | |
749 | |
|
|
750 | #ifndef EV_HAVE_EV_TIME |
562 | ev_tstamp |
751 | ev_tstamp |
563 | ev_time (void) |
752 | ev_time (void) |
564 | { |
753 | { |
565 | #if EV_USE_REALTIME |
754 | #if EV_USE_REALTIME |
566 | if (expect_true (have_realtime)) |
755 | if (expect_true (have_realtime)) |
… | |
… | |
573 | |
762 | |
574 | struct timeval tv; |
763 | struct timeval tv; |
575 | gettimeofday (&tv, 0); |
764 | gettimeofday (&tv, 0); |
576 | return tv.tv_sec + tv.tv_usec * 1e-6; |
765 | return tv.tv_sec + tv.tv_usec * 1e-6; |
577 | } |
766 | } |
|
|
767 | #endif |
578 | |
768 | |
579 | inline_size ev_tstamp |
769 | inline_size ev_tstamp |
580 | get_clock (void) |
770 | get_clock (void) |
581 | { |
771 | { |
582 | #if EV_USE_MONOTONIC |
772 | #if EV_USE_MONOTONIC |
… | |
… | |
605 | if (delay > 0.) |
795 | if (delay > 0.) |
606 | { |
796 | { |
607 | #if EV_USE_NANOSLEEP |
797 | #if EV_USE_NANOSLEEP |
608 | struct timespec ts; |
798 | struct timespec ts; |
609 | |
799 | |
610 | ts.tv_sec = (time_t)delay; |
800 | EV_TS_SET (ts, delay); |
611 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
612 | |
|
|
613 | nanosleep (&ts, 0); |
801 | nanosleep (&ts, 0); |
614 | #elif defined(_WIN32) |
802 | #elif defined(_WIN32) |
615 | Sleep ((unsigned long)(delay * 1e3)); |
803 | Sleep ((unsigned long)(delay * 1e3)); |
616 | #else |
804 | #else |
617 | struct timeval tv; |
805 | struct timeval tv; |
618 | |
806 | |
619 | tv.tv_sec = (time_t)delay; |
|
|
620 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
621 | |
|
|
622 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
807 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
623 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
808 | /* something not guaranteed by newer posix versions, but guaranteed */ |
624 | /* by older ones */ |
809 | /* by older ones */ |
|
|
810 | EV_TV_SET (tv, delay); |
625 | select (0, 0, 0, 0, &tv); |
811 | select (0, 0, 0, 0, &tv); |
626 | #endif |
812 | #endif |
627 | } |
813 | } |
628 | } |
814 | } |
629 | |
815 | |
630 | /*****************************************************************************/ |
816 | /*****************************************************************************/ |
631 | |
817 | |
632 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
818 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
633 | |
819 | |
634 | /* find a suitable new size for the given array, */ |
820 | /* find a suitable new size for the given array, */ |
635 | /* hopefully by rounding to a ncie-to-malloc size */ |
821 | /* hopefully by rounding to a nice-to-malloc size */ |
636 | inline_size int |
822 | inline_size int |
637 | array_nextsize (int elem, int cur, int cnt) |
823 | array_nextsize (int elem, int cur, int cnt) |
638 | { |
824 | { |
639 | int ncur = cur + 1; |
825 | int ncur = cur + 1; |
640 | |
826 | |
… | |
… | |
736 | } |
922 | } |
737 | |
923 | |
738 | /*****************************************************************************/ |
924 | /*****************************************************************************/ |
739 | |
925 | |
740 | inline_speed void |
926 | inline_speed void |
741 | fd_event (EV_P_ int fd, int revents) |
927 | fd_event_nocheck (EV_P_ int fd, int revents) |
742 | { |
928 | { |
743 | ANFD *anfd = anfds + fd; |
929 | ANFD *anfd = anfds + fd; |
744 | ev_io *w; |
930 | ev_io *w; |
745 | |
931 | |
746 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
932 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
750 | if (ev) |
936 | if (ev) |
751 | ev_feed_event (EV_A_ (W)w, ev); |
937 | ev_feed_event (EV_A_ (W)w, ev); |
752 | } |
938 | } |
753 | } |
939 | } |
754 | |
940 | |
|
|
941 | /* do not submit kernel events for fds that have reify set */ |
|
|
942 | /* because that means they changed while we were polling for new events */ |
|
|
943 | inline_speed void |
|
|
944 | fd_event (EV_P_ int fd, int revents) |
|
|
945 | { |
|
|
946 | ANFD *anfd = anfds + fd; |
|
|
947 | |
|
|
948 | if (expect_true (!anfd->reify)) |
|
|
949 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
950 | } |
|
|
951 | |
755 | void |
952 | void |
756 | ev_feed_fd_event (EV_P_ int fd, int revents) |
953 | ev_feed_fd_event (EV_P_ int fd, int revents) |
757 | { |
954 | { |
758 | if (fd >= 0 && fd < anfdmax) |
955 | if (fd >= 0 && fd < anfdmax) |
759 | fd_event (EV_A_ fd, revents); |
956 | fd_event_nocheck (EV_A_ fd, revents); |
760 | } |
957 | } |
761 | |
958 | |
762 | /* make sure the external fd watch events are in-sync */ |
959 | /* make sure the external fd watch events are in-sync */ |
763 | /* with the kernel/libev internal state */ |
960 | /* with the kernel/libev internal state */ |
764 | inline_size void |
961 | inline_size void |
… | |
… | |
770 | { |
967 | { |
771 | int fd = fdchanges [i]; |
968 | int fd = fdchanges [i]; |
772 | ANFD *anfd = anfds + fd; |
969 | ANFD *anfd = anfds + fd; |
773 | ev_io *w; |
970 | ev_io *w; |
774 | |
971 | |
775 | unsigned char events = 0; |
972 | unsigned char o_events = anfd->events; |
|
|
973 | unsigned char o_reify = anfd->reify; |
776 | |
974 | |
777 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
975 | anfd->reify = 0; |
778 | events |= (unsigned char)w->events; |
|
|
779 | |
976 | |
780 | #if EV_SELECT_IS_WINSOCKET |
977 | #if EV_SELECT_IS_WINSOCKET |
781 | if (events) |
978 | if (o_reify & EV__IOFDSET) |
782 | { |
979 | { |
783 | unsigned long arg; |
980 | unsigned long arg; |
784 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
785 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
981 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
786 | #else |
|
|
787 | anfd->handle = _get_osfhandle (fd); |
|
|
788 | #endif |
|
|
789 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
982 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
790 | } |
983 | } |
791 | #endif |
984 | #endif |
792 | |
985 | |
|
|
986 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
793 | { |
987 | { |
794 | unsigned char o_events = anfd->events; |
|
|
795 | unsigned char o_reify = anfd->reify; |
|
|
796 | |
|
|
797 | anfd->reify = 0; |
|
|
798 | anfd->events = events; |
988 | anfd->events = 0; |
799 | |
989 | |
800 | if (o_events != events || o_reify & EV__IOFDSET) |
990 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
991 | anfd->events |= (unsigned char)w->events; |
|
|
992 | |
|
|
993 | if (o_events != anfd->events) |
|
|
994 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
995 | } |
|
|
996 | |
|
|
997 | if (o_reify & EV__IOFDSET) |
801 | backend_modify (EV_A_ fd, o_events, events); |
998 | backend_modify (EV_A_ fd, o_events, anfd->events); |
802 | } |
|
|
803 | } |
999 | } |
804 | |
1000 | |
805 | fdchangecnt = 0; |
1001 | fdchangecnt = 0; |
806 | } |
1002 | } |
807 | |
1003 | |
… | |
… | |
831 | ev_io_stop (EV_A_ w); |
1027 | ev_io_stop (EV_A_ w); |
832 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1028 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
833 | } |
1029 | } |
834 | } |
1030 | } |
835 | |
1031 | |
836 | /* check whether the given fd is atcually valid, for error recovery */ |
1032 | /* check whether the given fd is actually valid, for error recovery */ |
837 | inline_size int |
1033 | inline_size int |
838 | fd_valid (int fd) |
1034 | fd_valid (int fd) |
839 | { |
1035 | { |
840 | #ifdef _WIN32 |
1036 | #ifdef _WIN32 |
841 | return _get_osfhandle (fd) != -1; |
1037 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
842 | #else |
1038 | #else |
843 | return fcntl (fd, F_GETFD) != -1; |
1039 | return fcntl (fd, F_GETFD) != -1; |
844 | #endif |
1040 | #endif |
845 | } |
1041 | } |
846 | |
1042 | |
… | |
… | |
864 | |
1060 | |
865 | for (fd = anfdmax; fd--; ) |
1061 | for (fd = anfdmax; fd--; ) |
866 | if (anfds [fd].events) |
1062 | if (anfds [fd].events) |
867 | { |
1063 | { |
868 | fd_kill (EV_A_ fd); |
1064 | fd_kill (EV_A_ fd); |
869 | return; |
1065 | break; |
870 | } |
1066 | } |
871 | } |
1067 | } |
872 | |
1068 | |
873 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1069 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
874 | static void noinline |
1070 | static void noinline |
… | |
… | |
879 | for (fd = 0; fd < anfdmax; ++fd) |
1075 | for (fd = 0; fd < anfdmax; ++fd) |
880 | if (anfds [fd].events) |
1076 | if (anfds [fd].events) |
881 | { |
1077 | { |
882 | anfds [fd].events = 0; |
1078 | anfds [fd].events = 0; |
883 | anfds [fd].emask = 0; |
1079 | anfds [fd].emask = 0; |
884 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1080 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
885 | } |
1081 | } |
886 | } |
1082 | } |
887 | |
1083 | |
|
|
1084 | /* used to prepare libev internal fd's */ |
|
|
1085 | /* this is not fork-safe */ |
|
|
1086 | inline_speed void |
|
|
1087 | fd_intern (int fd) |
|
|
1088 | { |
|
|
1089 | #ifdef _WIN32 |
|
|
1090 | unsigned long arg = 1; |
|
|
1091 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1092 | #else |
|
|
1093 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1094 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1095 | #endif |
|
|
1096 | } |
|
|
1097 | |
888 | /*****************************************************************************/ |
1098 | /*****************************************************************************/ |
889 | |
1099 | |
890 | /* |
1100 | /* |
891 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1101 | * the heap functions want a real array index. array index 0 is guaranteed to not |
892 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1102 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
893 | * the branching factor of the d-tree. |
1103 | * the branching factor of the d-tree. |
894 | */ |
1104 | */ |
895 | |
1105 | |
896 | /* |
1106 | /* |
… | |
… | |
964 | |
1174 | |
965 | for (;;) |
1175 | for (;;) |
966 | { |
1176 | { |
967 | int c = k << 1; |
1177 | int c = k << 1; |
968 | |
1178 | |
969 | if (c > N + HEAP0 - 1) |
1179 | if (c >= N + HEAP0) |
970 | break; |
1180 | break; |
971 | |
1181 | |
972 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1182 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
973 | ? 1 : 0; |
1183 | ? 1 : 0; |
974 | |
1184 | |
… | |
… | |
1010 | |
1220 | |
1011 | /* move an element suitably so it is in a correct place */ |
1221 | /* move an element suitably so it is in a correct place */ |
1012 | inline_size void |
1222 | inline_size void |
1013 | adjustheap (ANHE *heap, int N, int k) |
1223 | adjustheap (ANHE *heap, int N, int k) |
1014 | { |
1224 | { |
1015 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1225 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1016 | upheap (heap, k); |
1226 | upheap (heap, k); |
1017 | else |
1227 | else |
1018 | downheap (heap, N, k); |
1228 | downheap (heap, N, k); |
1019 | } |
1229 | } |
1020 | |
1230 | |
… | |
… | |
1033 | /*****************************************************************************/ |
1243 | /*****************************************************************************/ |
1034 | |
1244 | |
1035 | /* associate signal watchers to a signal signal */ |
1245 | /* associate signal watchers to a signal signal */ |
1036 | typedef struct |
1246 | typedef struct |
1037 | { |
1247 | { |
|
|
1248 | EV_ATOMIC_T pending; |
|
|
1249 | #if EV_MULTIPLICITY |
|
|
1250 | EV_P; |
|
|
1251 | #endif |
1038 | WL head; |
1252 | WL head; |
1039 | EV_ATOMIC_T gotsig; |
|
|
1040 | } ANSIG; |
1253 | } ANSIG; |
1041 | |
1254 | |
1042 | static ANSIG *signals; |
1255 | static ANSIG signals [EV_NSIG - 1]; |
1043 | static int signalmax; |
|
|
1044 | |
|
|
1045 | static EV_ATOMIC_T gotsig; |
|
|
1046 | |
1256 | |
1047 | /*****************************************************************************/ |
1257 | /*****************************************************************************/ |
1048 | |
1258 | |
1049 | /* used to prepare libev internal fd's */ |
1259 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1050 | /* this is not fork-safe */ |
|
|
1051 | inline_speed void |
|
|
1052 | fd_intern (int fd) |
|
|
1053 | { |
|
|
1054 | #ifdef _WIN32 |
|
|
1055 | unsigned long arg = 1; |
|
|
1056 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1057 | #else |
|
|
1058 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1059 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1060 | #endif |
|
|
1061 | } |
|
|
1062 | |
1260 | |
1063 | static void noinline |
1261 | static void noinline |
1064 | evpipe_init (EV_P) |
1262 | evpipe_init (EV_P) |
1065 | { |
1263 | { |
1066 | if (!ev_is_active (&pipe_w)) |
1264 | if (!ev_is_active (&pipe_w)) |
1067 | { |
1265 | { |
1068 | #if EV_USE_EVENTFD |
1266 | # if EV_USE_EVENTFD |
|
|
1267 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1268 | if (evfd < 0 && errno == EINVAL) |
1069 | if ((evfd = eventfd (0, 0)) >= 0) |
1269 | evfd = eventfd (0, 0); |
|
|
1270 | |
|
|
1271 | if (evfd >= 0) |
1070 | { |
1272 | { |
1071 | evpipe [0] = -1; |
1273 | evpipe [0] = -1; |
1072 | fd_intern (evfd); |
1274 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1073 | ev_io_set (&pipe_w, evfd, EV_READ); |
1275 | ev_io_set (&pipe_w, evfd, EV_READ); |
1074 | } |
1276 | } |
1075 | else |
1277 | else |
1076 | #endif |
1278 | # endif |
1077 | { |
1279 | { |
1078 | while (pipe (evpipe)) |
1280 | while (pipe (evpipe)) |
1079 | ev_syserr ("(libev) error creating signal/async pipe"); |
1281 | ev_syserr ("(libev) error creating signal/async pipe"); |
1080 | |
1282 | |
1081 | fd_intern (evpipe [0]); |
1283 | fd_intern (evpipe [0]); |
… | |
… | |
1092 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1294 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1093 | { |
1295 | { |
1094 | if (!*flag) |
1296 | if (!*flag) |
1095 | { |
1297 | { |
1096 | int old_errno = errno; /* save errno because write might clobber it */ |
1298 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1299 | char dummy; |
1097 | |
1300 | |
1098 | *flag = 1; |
1301 | *flag = 1; |
1099 | |
1302 | |
1100 | #if EV_USE_EVENTFD |
1303 | #if EV_USE_EVENTFD |
1101 | if (evfd >= 0) |
1304 | if (evfd >= 0) |
… | |
… | |
1103 | uint64_t counter = 1; |
1306 | uint64_t counter = 1; |
1104 | write (evfd, &counter, sizeof (uint64_t)); |
1307 | write (evfd, &counter, sizeof (uint64_t)); |
1105 | } |
1308 | } |
1106 | else |
1309 | else |
1107 | #endif |
1310 | #endif |
|
|
1311 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1312 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1313 | /* so when you think this write should be a send instead, please find out */ |
|
|
1314 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1315 | /* tell me. thank you. */ |
1108 | write (evpipe [1], &old_errno, 1); |
1316 | write (evpipe [1], &dummy, 1); |
1109 | |
1317 | |
1110 | errno = old_errno; |
1318 | errno = old_errno; |
1111 | } |
1319 | } |
1112 | } |
1320 | } |
1113 | |
1321 | |
1114 | /* called whenever the libev signal pipe */ |
1322 | /* called whenever the libev signal pipe */ |
1115 | /* got some events (signal, async) */ |
1323 | /* got some events (signal, async) */ |
1116 | static void |
1324 | static void |
1117 | pipecb (EV_P_ ev_io *iow, int revents) |
1325 | pipecb (EV_P_ ev_io *iow, int revents) |
1118 | { |
1326 | { |
|
|
1327 | int i; |
|
|
1328 | |
1119 | #if EV_USE_EVENTFD |
1329 | #if EV_USE_EVENTFD |
1120 | if (evfd >= 0) |
1330 | if (evfd >= 0) |
1121 | { |
1331 | { |
1122 | uint64_t counter; |
1332 | uint64_t counter; |
1123 | read (evfd, &counter, sizeof (uint64_t)); |
1333 | read (evfd, &counter, sizeof (uint64_t)); |
1124 | } |
1334 | } |
1125 | else |
1335 | else |
1126 | #endif |
1336 | #endif |
1127 | { |
1337 | { |
1128 | char dummy; |
1338 | char dummy; |
|
|
1339 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1129 | read (evpipe [0], &dummy, 1); |
1340 | read (evpipe [0], &dummy, 1); |
1130 | } |
1341 | } |
1131 | |
1342 | |
1132 | if (gotsig && ev_is_default_loop (EV_A)) |
1343 | if (sig_pending) |
1133 | { |
1344 | { |
1134 | int signum; |
1345 | sig_pending = 0; |
1135 | gotsig = 0; |
|
|
1136 | |
1346 | |
1137 | for (signum = signalmax; signum--; ) |
1347 | for (i = EV_NSIG - 1; i--; ) |
1138 | if (signals [signum].gotsig) |
1348 | if (expect_false (signals [i].pending)) |
1139 | ev_feed_signal_event (EV_A_ signum + 1); |
1349 | ev_feed_signal_event (EV_A_ i + 1); |
1140 | } |
1350 | } |
1141 | |
1351 | |
1142 | #if EV_ASYNC_ENABLE |
1352 | #if EV_ASYNC_ENABLE |
1143 | if (gotasync) |
1353 | if (async_pending) |
1144 | { |
1354 | { |
1145 | int i; |
1355 | async_pending = 0; |
1146 | gotasync = 0; |
|
|
1147 | |
1356 | |
1148 | for (i = asynccnt; i--; ) |
1357 | for (i = asynccnt; i--; ) |
1149 | if (asyncs [i]->sent) |
1358 | if (asyncs [i]->sent) |
1150 | { |
1359 | { |
1151 | asyncs [i]->sent = 0; |
1360 | asyncs [i]->sent = 0; |
… | |
… | |
1159 | |
1368 | |
1160 | static void |
1369 | static void |
1161 | ev_sighandler (int signum) |
1370 | ev_sighandler (int signum) |
1162 | { |
1371 | { |
1163 | #if EV_MULTIPLICITY |
1372 | #if EV_MULTIPLICITY |
1164 | struct ev_loop *loop = &default_loop_struct; |
1373 | EV_P = signals [signum - 1].loop; |
1165 | #endif |
1374 | #endif |
1166 | |
1375 | |
1167 | #if _WIN32 |
1376 | #ifdef _WIN32 |
1168 | signal (signum, ev_sighandler); |
1377 | signal (signum, ev_sighandler); |
1169 | #endif |
1378 | #endif |
1170 | |
1379 | |
1171 | signals [signum - 1].gotsig = 1; |
1380 | signals [signum - 1].pending = 1; |
1172 | evpipe_write (EV_A_ &gotsig); |
1381 | evpipe_write (EV_A_ &sig_pending); |
1173 | } |
1382 | } |
1174 | |
1383 | |
1175 | void noinline |
1384 | void noinline |
1176 | ev_feed_signal_event (EV_P_ int signum) |
1385 | ev_feed_signal_event (EV_P_ int signum) |
1177 | { |
1386 | { |
1178 | WL w; |
1387 | WL w; |
1179 | |
1388 | |
|
|
1389 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1390 | return; |
|
|
1391 | |
|
|
1392 | --signum; |
|
|
1393 | |
1180 | #if EV_MULTIPLICITY |
1394 | #if EV_MULTIPLICITY |
1181 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1395 | /* it is permissible to try to feed a signal to the wrong loop */ |
1182 | #endif |
1396 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1183 | |
1397 | |
1184 | --signum; |
1398 | if (expect_false (signals [signum].loop != EV_A)) |
1185 | |
|
|
1186 | if (signum < 0 || signum >= signalmax) |
|
|
1187 | return; |
1399 | return; |
|
|
1400 | #endif |
1188 | |
1401 | |
1189 | signals [signum].gotsig = 0; |
1402 | signals [signum].pending = 0; |
1190 | |
1403 | |
1191 | for (w = signals [signum].head; w; w = w->next) |
1404 | for (w = signals [signum].head; w; w = w->next) |
1192 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1405 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1193 | } |
1406 | } |
1194 | |
1407 | |
|
|
1408 | #if EV_USE_SIGNALFD |
|
|
1409 | static void |
|
|
1410 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1411 | { |
|
|
1412 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1413 | |
|
|
1414 | for (;;) |
|
|
1415 | { |
|
|
1416 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1417 | |
|
|
1418 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1419 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1420 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1421 | |
|
|
1422 | if (res < (ssize_t)sizeof (si)) |
|
|
1423 | break; |
|
|
1424 | } |
|
|
1425 | } |
|
|
1426 | #endif |
|
|
1427 | |
|
|
1428 | #endif |
|
|
1429 | |
1195 | /*****************************************************************************/ |
1430 | /*****************************************************************************/ |
1196 | |
1431 | |
|
|
1432 | #if EV_CHILD_ENABLE |
1197 | static WL childs [EV_PID_HASHSIZE]; |
1433 | static WL childs [EV_PID_HASHSIZE]; |
1198 | |
|
|
1199 | #ifndef _WIN32 |
|
|
1200 | |
1434 | |
1201 | static ev_signal childev; |
1435 | static ev_signal childev; |
1202 | |
1436 | |
1203 | #ifndef WIFCONTINUED |
1437 | #ifndef WIFCONTINUED |
1204 | # define WIFCONTINUED(status) 0 |
1438 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1209 | child_reap (EV_P_ int chain, int pid, int status) |
1443 | child_reap (EV_P_ int chain, int pid, int status) |
1210 | { |
1444 | { |
1211 | ev_child *w; |
1445 | ev_child *w; |
1212 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1446 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1213 | |
1447 | |
1214 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1448 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1215 | { |
1449 | { |
1216 | if ((w->pid == pid || !w->pid) |
1450 | if ((w->pid == pid || !w->pid) |
1217 | && (!traced || (w->flags & 1))) |
1451 | && (!traced || (w->flags & 1))) |
1218 | { |
1452 | { |
1219 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1453 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1244 | /* make sure we are called again until all children have been reaped */ |
1478 | /* make sure we are called again until all children have been reaped */ |
1245 | /* we need to do it this way so that the callback gets called before we continue */ |
1479 | /* we need to do it this way so that the callback gets called before we continue */ |
1246 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1480 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1247 | |
1481 | |
1248 | child_reap (EV_A_ pid, pid, status); |
1482 | child_reap (EV_A_ pid, pid, status); |
1249 | if (EV_PID_HASHSIZE > 1) |
1483 | if ((EV_PID_HASHSIZE) > 1) |
1250 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1484 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1251 | } |
1485 | } |
1252 | |
1486 | |
1253 | #endif |
1487 | #endif |
1254 | |
1488 | |
… | |
… | |
1321 | #ifdef __APPLE__ |
1555 | #ifdef __APPLE__ |
1322 | /* only select works correctly on that "unix-certified" platform */ |
1556 | /* only select works correctly on that "unix-certified" platform */ |
1323 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1557 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1324 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1558 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1325 | #endif |
1559 | #endif |
|
|
1560 | #ifdef __FreeBSD__ |
|
|
1561 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1562 | #endif |
1326 | |
1563 | |
1327 | return flags; |
1564 | return flags; |
1328 | } |
1565 | } |
1329 | |
1566 | |
1330 | unsigned int |
1567 | unsigned int |
1331 | ev_embeddable_backends (void) |
1568 | ev_embeddable_backends (void) |
1332 | { |
1569 | { |
1333 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1570 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1334 | |
1571 | |
1335 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1572 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1336 | /* please fix it and tell me how to detect the fix */ |
1573 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1337 | flags &= ~EVBACKEND_EPOLL; |
1574 | flags &= ~EVBACKEND_EPOLL; |
1338 | |
1575 | |
1339 | return flags; |
1576 | return flags; |
1340 | } |
1577 | } |
1341 | |
1578 | |
1342 | unsigned int |
1579 | unsigned int |
1343 | ev_backend (EV_P) |
1580 | ev_backend (EV_P) |
1344 | { |
1581 | { |
1345 | return backend; |
1582 | return backend; |
1346 | } |
1583 | } |
1347 | |
1584 | |
|
|
1585 | #if EV_FEATURE_API |
1348 | unsigned int |
1586 | unsigned int |
1349 | ev_loop_count (EV_P) |
1587 | ev_iteration (EV_P) |
1350 | { |
1588 | { |
1351 | return loop_count; |
1589 | return loop_count; |
1352 | } |
1590 | } |
1353 | |
1591 | |
|
|
1592 | unsigned int |
|
|
1593 | ev_depth (EV_P) |
|
|
1594 | { |
|
|
1595 | return loop_depth; |
|
|
1596 | } |
|
|
1597 | |
1354 | void |
1598 | void |
1355 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1599 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1356 | { |
1600 | { |
1357 | io_blocktime = interval; |
1601 | io_blocktime = interval; |
1358 | } |
1602 | } |
… | |
… | |
1360 | void |
1604 | void |
1361 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1605 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1362 | { |
1606 | { |
1363 | timeout_blocktime = interval; |
1607 | timeout_blocktime = interval; |
1364 | } |
1608 | } |
|
|
1609 | |
|
|
1610 | void |
|
|
1611 | ev_set_userdata (EV_P_ void *data) |
|
|
1612 | { |
|
|
1613 | userdata = data; |
|
|
1614 | } |
|
|
1615 | |
|
|
1616 | void * |
|
|
1617 | ev_userdata (EV_P) |
|
|
1618 | { |
|
|
1619 | return userdata; |
|
|
1620 | } |
|
|
1621 | |
|
|
1622 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1623 | { |
|
|
1624 | invoke_cb = invoke_pending_cb; |
|
|
1625 | } |
|
|
1626 | |
|
|
1627 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1628 | { |
|
|
1629 | release_cb = release; |
|
|
1630 | acquire_cb = acquire; |
|
|
1631 | } |
|
|
1632 | #endif |
1365 | |
1633 | |
1366 | /* initialise a loop structure, must be zero-initialised */ |
1634 | /* initialise a loop structure, must be zero-initialised */ |
1367 | static void noinline |
1635 | static void noinline |
1368 | loop_init (EV_P_ unsigned int flags) |
1636 | loop_init (EV_P_ unsigned int flags) |
1369 | { |
1637 | { |
… | |
… | |
1387 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1655 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1388 | have_monotonic = 1; |
1656 | have_monotonic = 1; |
1389 | } |
1657 | } |
1390 | #endif |
1658 | #endif |
1391 | |
1659 | |
|
|
1660 | /* pid check not overridable via env */ |
|
|
1661 | #ifndef _WIN32 |
|
|
1662 | if (flags & EVFLAG_FORKCHECK) |
|
|
1663 | curpid = getpid (); |
|
|
1664 | #endif |
|
|
1665 | |
|
|
1666 | if (!(flags & EVFLAG_NOENV) |
|
|
1667 | && !enable_secure () |
|
|
1668 | && getenv ("LIBEV_FLAGS")) |
|
|
1669 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1670 | |
1392 | ev_rt_now = ev_time (); |
1671 | ev_rt_now = ev_time (); |
1393 | mn_now = get_clock (); |
1672 | mn_now = get_clock (); |
1394 | now_floor = mn_now; |
1673 | now_floor = mn_now; |
1395 | rtmn_diff = ev_rt_now - mn_now; |
1674 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1675 | #if EV_FEATURE_API |
|
|
1676 | invoke_cb = ev_invoke_pending; |
|
|
1677 | #endif |
1396 | |
1678 | |
1397 | io_blocktime = 0.; |
1679 | io_blocktime = 0.; |
1398 | timeout_blocktime = 0.; |
1680 | timeout_blocktime = 0.; |
1399 | backend = 0; |
1681 | backend = 0; |
1400 | backend_fd = -1; |
1682 | backend_fd = -1; |
1401 | gotasync = 0; |
1683 | sig_pending = 0; |
|
|
1684 | #if EV_ASYNC_ENABLE |
|
|
1685 | async_pending = 0; |
|
|
1686 | #endif |
1402 | #if EV_USE_INOTIFY |
1687 | #if EV_USE_INOTIFY |
1403 | fs_fd = -2; |
1688 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1404 | #endif |
1689 | #endif |
1405 | |
1690 | #if EV_USE_SIGNALFD |
1406 | /* pid check not overridable via env */ |
1691 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1407 | #ifndef _WIN32 |
|
|
1408 | if (flags & EVFLAG_FORKCHECK) |
|
|
1409 | curpid = getpid (); |
|
|
1410 | #endif |
1692 | #endif |
1411 | |
|
|
1412 | if (!(flags & EVFLAG_NOENV) |
|
|
1413 | && !enable_secure () |
|
|
1414 | && getenv ("LIBEV_FLAGS")) |
|
|
1415 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1416 | |
1693 | |
1417 | if (!(flags & 0x0000ffffU)) |
1694 | if (!(flags & 0x0000ffffU)) |
1418 | flags |= ev_recommended_backends (); |
1695 | flags |= ev_recommended_backends (); |
1419 | |
1696 | |
1420 | #if EV_USE_PORT |
1697 | #if EV_USE_PORT |
… | |
… | |
1433 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1710 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1434 | #endif |
1711 | #endif |
1435 | |
1712 | |
1436 | ev_prepare_init (&pending_w, pendingcb); |
1713 | ev_prepare_init (&pending_w, pendingcb); |
1437 | |
1714 | |
|
|
1715 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1438 | ev_init (&pipe_w, pipecb); |
1716 | ev_init (&pipe_w, pipecb); |
1439 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1717 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1718 | #endif |
1440 | } |
1719 | } |
1441 | } |
1720 | } |
1442 | |
1721 | |
1443 | /* free up a loop structure */ |
1722 | /* free up a loop structure */ |
1444 | static void noinline |
1723 | static void noinline |
… | |
… | |
1446 | { |
1725 | { |
1447 | int i; |
1726 | int i; |
1448 | |
1727 | |
1449 | if (ev_is_active (&pipe_w)) |
1728 | if (ev_is_active (&pipe_w)) |
1450 | { |
1729 | { |
1451 | ev_ref (EV_A); /* signal watcher */ |
1730 | /*ev_ref (EV_A);*/ |
1452 | ev_io_stop (EV_A_ &pipe_w); |
1731 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1453 | |
1732 | |
1454 | #if EV_USE_EVENTFD |
1733 | #if EV_USE_EVENTFD |
1455 | if (evfd >= 0) |
1734 | if (evfd >= 0) |
1456 | close (evfd); |
1735 | close (evfd); |
1457 | #endif |
1736 | #endif |
1458 | |
1737 | |
1459 | if (evpipe [0] >= 0) |
1738 | if (evpipe [0] >= 0) |
1460 | { |
1739 | { |
1461 | close (evpipe [0]); |
1740 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1462 | close (evpipe [1]); |
1741 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1463 | } |
1742 | } |
1464 | } |
1743 | } |
|
|
1744 | |
|
|
1745 | #if EV_USE_SIGNALFD |
|
|
1746 | if (ev_is_active (&sigfd_w)) |
|
|
1747 | close (sigfd); |
|
|
1748 | #endif |
1465 | |
1749 | |
1466 | #if EV_USE_INOTIFY |
1750 | #if EV_USE_INOTIFY |
1467 | if (fs_fd >= 0) |
1751 | if (fs_fd >= 0) |
1468 | close (fs_fd); |
1752 | close (fs_fd); |
1469 | #endif |
1753 | #endif |
… | |
… | |
1493 | #if EV_IDLE_ENABLE |
1777 | #if EV_IDLE_ENABLE |
1494 | array_free (idle, [i]); |
1778 | array_free (idle, [i]); |
1495 | #endif |
1779 | #endif |
1496 | } |
1780 | } |
1497 | |
1781 | |
1498 | ev_free (anfds); anfdmax = 0; |
1782 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1499 | |
1783 | |
1500 | /* have to use the microsoft-never-gets-it-right macro */ |
1784 | /* have to use the microsoft-never-gets-it-right macro */ |
1501 | array_free (rfeed, EMPTY); |
1785 | array_free (rfeed, EMPTY); |
1502 | array_free (fdchange, EMPTY); |
1786 | array_free (fdchange, EMPTY); |
1503 | array_free (timer, EMPTY); |
1787 | array_free (timer, EMPTY); |
… | |
… | |
1538 | |
1822 | |
1539 | if (ev_is_active (&pipe_w)) |
1823 | if (ev_is_active (&pipe_w)) |
1540 | { |
1824 | { |
1541 | /* this "locks" the handlers against writing to the pipe */ |
1825 | /* this "locks" the handlers against writing to the pipe */ |
1542 | /* while we modify the fd vars */ |
1826 | /* while we modify the fd vars */ |
1543 | gotsig = 1; |
1827 | sig_pending = 1; |
1544 | #if EV_ASYNC_ENABLE |
1828 | #if EV_ASYNC_ENABLE |
1545 | gotasync = 1; |
1829 | async_pending = 1; |
1546 | #endif |
1830 | #endif |
1547 | |
1831 | |
1548 | ev_ref (EV_A); |
1832 | ev_ref (EV_A); |
1549 | ev_io_stop (EV_A_ &pipe_w); |
1833 | ev_io_stop (EV_A_ &pipe_w); |
1550 | |
1834 | |
… | |
… | |
1553 | close (evfd); |
1837 | close (evfd); |
1554 | #endif |
1838 | #endif |
1555 | |
1839 | |
1556 | if (evpipe [0] >= 0) |
1840 | if (evpipe [0] >= 0) |
1557 | { |
1841 | { |
1558 | close (evpipe [0]); |
1842 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1559 | close (evpipe [1]); |
1843 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1560 | } |
1844 | } |
1561 | |
1845 | |
|
|
1846 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1562 | evpipe_init (EV_A); |
1847 | evpipe_init (EV_A); |
1563 | /* now iterate over everything, in case we missed something */ |
1848 | /* now iterate over everything, in case we missed something */ |
1564 | pipecb (EV_A_ &pipe_w, EV_READ); |
1849 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1850 | #endif |
1565 | } |
1851 | } |
1566 | |
1852 | |
1567 | postfork = 0; |
1853 | postfork = 0; |
1568 | } |
1854 | } |
1569 | |
1855 | |
1570 | #if EV_MULTIPLICITY |
1856 | #if EV_MULTIPLICITY |
1571 | |
1857 | |
1572 | struct ev_loop * |
1858 | struct ev_loop * |
1573 | ev_loop_new (unsigned int flags) |
1859 | ev_loop_new (unsigned int flags) |
1574 | { |
1860 | { |
1575 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1861 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1576 | |
1862 | |
1577 | memset (loop, 0, sizeof (struct ev_loop)); |
1863 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1578 | |
|
|
1579 | loop_init (EV_A_ flags); |
1864 | loop_init (EV_A_ flags); |
1580 | |
1865 | |
1581 | if (ev_backend (EV_A)) |
1866 | if (ev_backend (EV_A)) |
1582 | return loop; |
1867 | return EV_A; |
1583 | |
1868 | |
1584 | return 0; |
1869 | return 0; |
1585 | } |
1870 | } |
1586 | |
1871 | |
1587 | void |
1872 | void |
… | |
… | |
1594 | void |
1879 | void |
1595 | ev_loop_fork (EV_P) |
1880 | ev_loop_fork (EV_P) |
1596 | { |
1881 | { |
1597 | postfork = 1; /* must be in line with ev_default_fork */ |
1882 | postfork = 1; /* must be in line with ev_default_fork */ |
1598 | } |
1883 | } |
|
|
1884 | #endif /* multiplicity */ |
1599 | |
1885 | |
1600 | #if EV_VERIFY |
1886 | #if EV_VERIFY |
1601 | static void noinline |
1887 | static void noinline |
1602 | verify_watcher (EV_P_ W w) |
1888 | verify_watcher (EV_P_ W w) |
1603 | { |
1889 | { |
… | |
… | |
1631 | verify_watcher (EV_A_ ws [cnt]); |
1917 | verify_watcher (EV_A_ ws [cnt]); |
1632 | } |
1918 | } |
1633 | } |
1919 | } |
1634 | #endif |
1920 | #endif |
1635 | |
1921 | |
|
|
1922 | #if EV_FEATURE_API |
1636 | void |
1923 | void |
1637 | ev_loop_verify (EV_P) |
1924 | ev_verify (EV_P) |
1638 | { |
1925 | { |
1639 | #if EV_VERIFY |
1926 | #if EV_VERIFY |
1640 | int i; |
1927 | int i; |
1641 | WL w; |
1928 | WL w; |
1642 | |
1929 | |
… | |
… | |
1681 | #if EV_ASYNC_ENABLE |
1968 | #if EV_ASYNC_ENABLE |
1682 | assert (asyncmax >= asynccnt); |
1969 | assert (asyncmax >= asynccnt); |
1683 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1970 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1684 | #endif |
1971 | #endif |
1685 | |
1972 | |
|
|
1973 | #if EV_PREPARE_ENABLE |
1686 | assert (preparemax >= preparecnt); |
1974 | assert (preparemax >= preparecnt); |
1687 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1975 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1976 | #endif |
1688 | |
1977 | |
|
|
1978 | #if EV_CHECK_ENABLE |
1689 | assert (checkmax >= checkcnt); |
1979 | assert (checkmax >= checkcnt); |
1690 | array_verify (EV_A_ (W *)checks, checkcnt); |
1980 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1981 | #endif |
1691 | |
1982 | |
1692 | # if 0 |
1983 | # if 0 |
|
|
1984 | #if EV_CHILD_ENABLE |
1693 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1985 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1694 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1986 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1987 | #endif |
1695 | # endif |
1988 | # endif |
1696 | #endif |
1989 | #endif |
1697 | } |
1990 | } |
1698 | |
1991 | #endif |
1699 | #endif /* multiplicity */ |
|
|
1700 | |
1992 | |
1701 | #if EV_MULTIPLICITY |
1993 | #if EV_MULTIPLICITY |
1702 | struct ev_loop * |
1994 | struct ev_loop * |
1703 | ev_default_loop_init (unsigned int flags) |
1995 | ev_default_loop_init (unsigned int flags) |
1704 | #else |
1996 | #else |
… | |
… | |
1707 | #endif |
1999 | #endif |
1708 | { |
2000 | { |
1709 | if (!ev_default_loop_ptr) |
2001 | if (!ev_default_loop_ptr) |
1710 | { |
2002 | { |
1711 | #if EV_MULTIPLICITY |
2003 | #if EV_MULTIPLICITY |
1712 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2004 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1713 | #else |
2005 | #else |
1714 | ev_default_loop_ptr = 1; |
2006 | ev_default_loop_ptr = 1; |
1715 | #endif |
2007 | #endif |
1716 | |
2008 | |
1717 | loop_init (EV_A_ flags); |
2009 | loop_init (EV_A_ flags); |
1718 | |
2010 | |
1719 | if (ev_backend (EV_A)) |
2011 | if (ev_backend (EV_A)) |
1720 | { |
2012 | { |
1721 | #ifndef _WIN32 |
2013 | #if EV_CHILD_ENABLE |
1722 | ev_signal_init (&childev, childcb, SIGCHLD); |
2014 | ev_signal_init (&childev, childcb, SIGCHLD); |
1723 | ev_set_priority (&childev, EV_MAXPRI); |
2015 | ev_set_priority (&childev, EV_MAXPRI); |
1724 | ev_signal_start (EV_A_ &childev); |
2016 | ev_signal_start (EV_A_ &childev); |
1725 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2017 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1726 | #endif |
2018 | #endif |
… | |
… | |
1734 | |
2026 | |
1735 | void |
2027 | void |
1736 | ev_default_destroy (void) |
2028 | ev_default_destroy (void) |
1737 | { |
2029 | { |
1738 | #if EV_MULTIPLICITY |
2030 | #if EV_MULTIPLICITY |
1739 | struct ev_loop *loop = ev_default_loop_ptr; |
2031 | EV_P = ev_default_loop_ptr; |
1740 | #endif |
2032 | #endif |
1741 | |
2033 | |
1742 | ev_default_loop_ptr = 0; |
2034 | ev_default_loop_ptr = 0; |
1743 | |
2035 | |
1744 | #ifndef _WIN32 |
2036 | #if EV_CHILD_ENABLE |
1745 | ev_ref (EV_A); /* child watcher */ |
2037 | ev_ref (EV_A); /* child watcher */ |
1746 | ev_signal_stop (EV_A_ &childev); |
2038 | ev_signal_stop (EV_A_ &childev); |
1747 | #endif |
2039 | #endif |
1748 | |
2040 | |
1749 | loop_destroy (EV_A); |
2041 | loop_destroy (EV_A); |
… | |
… | |
1751 | |
2043 | |
1752 | void |
2044 | void |
1753 | ev_default_fork (void) |
2045 | ev_default_fork (void) |
1754 | { |
2046 | { |
1755 | #if EV_MULTIPLICITY |
2047 | #if EV_MULTIPLICITY |
1756 | struct ev_loop *loop = ev_default_loop_ptr; |
2048 | EV_P = ev_default_loop_ptr; |
1757 | #endif |
2049 | #endif |
1758 | |
2050 | |
1759 | postfork = 1; /* must be in line with ev_loop_fork */ |
2051 | postfork = 1; /* must be in line with ev_loop_fork */ |
1760 | } |
2052 | } |
1761 | |
2053 | |
… | |
… | |
1765 | ev_invoke (EV_P_ void *w, int revents) |
2057 | ev_invoke (EV_P_ void *w, int revents) |
1766 | { |
2058 | { |
1767 | EV_CB_INVOKE ((W)w, revents); |
2059 | EV_CB_INVOKE ((W)w, revents); |
1768 | } |
2060 | } |
1769 | |
2061 | |
1770 | inline_speed void |
2062 | unsigned int |
1771 | call_pending (EV_P) |
2063 | ev_pending_count (EV_P) |
|
|
2064 | { |
|
|
2065 | int pri; |
|
|
2066 | unsigned int count = 0; |
|
|
2067 | |
|
|
2068 | for (pri = NUMPRI; pri--; ) |
|
|
2069 | count += pendingcnt [pri]; |
|
|
2070 | |
|
|
2071 | return count; |
|
|
2072 | } |
|
|
2073 | |
|
|
2074 | void noinline |
|
|
2075 | ev_invoke_pending (EV_P) |
1772 | { |
2076 | { |
1773 | int pri; |
2077 | int pri; |
1774 | |
2078 | |
1775 | for (pri = NUMPRI; pri--; ) |
2079 | for (pri = NUMPRI; pri--; ) |
1776 | while (pendingcnt [pri]) |
2080 | while (pendingcnt [pri]) |
… | |
… | |
1843 | EV_FREQUENT_CHECK; |
2147 | EV_FREQUENT_CHECK; |
1844 | feed_reverse (EV_A_ (W)w); |
2148 | feed_reverse (EV_A_ (W)w); |
1845 | } |
2149 | } |
1846 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2150 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1847 | |
2151 | |
1848 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2152 | feed_reverse_done (EV_A_ EV_TIMER); |
1849 | } |
2153 | } |
1850 | } |
2154 | } |
1851 | |
2155 | |
1852 | #if EV_PERIODIC_ENABLE |
2156 | #if EV_PERIODIC_ENABLE |
1853 | /* make periodics pending */ |
2157 | /* make periodics pending */ |
… | |
… | |
1906 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2210 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1907 | } |
2211 | } |
1908 | } |
2212 | } |
1909 | |
2213 | |
1910 | /* simply recalculate all periodics */ |
2214 | /* simply recalculate all periodics */ |
1911 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2215 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1912 | static void noinline |
2216 | static void noinline |
1913 | periodics_reschedule (EV_P) |
2217 | periodics_reschedule (EV_P) |
1914 | { |
2218 | { |
1915 | int i; |
2219 | int i; |
1916 | |
2220 | |
… | |
… | |
1944 | ANHE_at_cache (*he); |
2248 | ANHE_at_cache (*he); |
1945 | } |
2249 | } |
1946 | } |
2250 | } |
1947 | |
2251 | |
1948 | /* fetch new monotonic and realtime times from the kernel */ |
2252 | /* fetch new monotonic and realtime times from the kernel */ |
1949 | /* also detetc if there was a timejump, and act accordingly */ |
2253 | /* also detect if there was a timejump, and act accordingly */ |
1950 | inline_speed void |
2254 | inline_speed void |
1951 | time_update (EV_P_ ev_tstamp max_block) |
2255 | time_update (EV_P_ ev_tstamp max_block) |
1952 | { |
2256 | { |
1953 | #if EV_USE_MONOTONIC |
2257 | #if EV_USE_MONOTONIC |
1954 | if (expect_true (have_monotonic)) |
2258 | if (expect_true (have_monotonic)) |
… | |
… | |
2011 | |
2315 | |
2012 | mn_now = ev_rt_now; |
2316 | mn_now = ev_rt_now; |
2013 | } |
2317 | } |
2014 | } |
2318 | } |
2015 | |
2319 | |
2016 | static int loop_done; |
|
|
2017 | |
|
|
2018 | void |
2320 | void |
2019 | ev_loop (EV_P_ int flags) |
2321 | ev_run (EV_P_ int flags) |
2020 | { |
2322 | { |
|
|
2323 | #if EV_FEATURE_API |
|
|
2324 | ++loop_depth; |
|
|
2325 | #endif |
|
|
2326 | |
|
|
2327 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2328 | |
2021 | loop_done = EVUNLOOP_CANCEL; |
2329 | loop_done = EVBREAK_CANCEL; |
2022 | |
2330 | |
2023 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2331 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2024 | |
2332 | |
2025 | do |
2333 | do |
2026 | { |
2334 | { |
2027 | #if EV_VERIFY >= 2 |
2335 | #if EV_VERIFY >= 2 |
2028 | ev_loop_verify (EV_A); |
2336 | ev_verify (EV_A); |
2029 | #endif |
2337 | #endif |
2030 | |
2338 | |
2031 | #ifndef _WIN32 |
2339 | #ifndef _WIN32 |
2032 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2340 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2033 | if (expect_false (getpid () != curpid)) |
2341 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2041 | /* we might have forked, so queue fork handlers */ |
2349 | /* we might have forked, so queue fork handlers */ |
2042 | if (expect_false (postfork)) |
2350 | if (expect_false (postfork)) |
2043 | if (forkcnt) |
2351 | if (forkcnt) |
2044 | { |
2352 | { |
2045 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2353 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2046 | call_pending (EV_A); |
2354 | EV_INVOKE_PENDING; |
2047 | } |
2355 | } |
2048 | #endif |
2356 | #endif |
2049 | |
2357 | |
|
|
2358 | #if EV_PREPARE_ENABLE |
2050 | /* queue prepare watchers (and execute them) */ |
2359 | /* queue prepare watchers (and execute them) */ |
2051 | if (expect_false (preparecnt)) |
2360 | if (expect_false (preparecnt)) |
2052 | { |
2361 | { |
2053 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2362 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2054 | call_pending (EV_A); |
2363 | EV_INVOKE_PENDING; |
2055 | } |
2364 | } |
|
|
2365 | #endif |
|
|
2366 | |
|
|
2367 | if (expect_false (loop_done)) |
|
|
2368 | break; |
2056 | |
2369 | |
2057 | /* we might have forked, so reify kernel state if necessary */ |
2370 | /* we might have forked, so reify kernel state if necessary */ |
2058 | if (expect_false (postfork)) |
2371 | if (expect_false (postfork)) |
2059 | loop_fork (EV_A); |
2372 | loop_fork (EV_A); |
2060 | |
2373 | |
… | |
… | |
2064 | /* calculate blocking time */ |
2377 | /* calculate blocking time */ |
2065 | { |
2378 | { |
2066 | ev_tstamp waittime = 0.; |
2379 | ev_tstamp waittime = 0.; |
2067 | ev_tstamp sleeptime = 0.; |
2380 | ev_tstamp sleeptime = 0.; |
2068 | |
2381 | |
|
|
2382 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2383 | ev_tstamp prev_mn_now = mn_now; |
|
|
2384 | |
|
|
2385 | /* update time to cancel out callback processing overhead */ |
|
|
2386 | time_update (EV_A_ 1e100); |
|
|
2387 | |
2069 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2388 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2070 | { |
2389 | { |
2071 | /* update time to cancel out callback processing overhead */ |
|
|
2072 | time_update (EV_A_ 1e100); |
|
|
2073 | |
|
|
2074 | waittime = MAX_BLOCKTIME; |
2390 | waittime = MAX_BLOCKTIME; |
2075 | |
2391 | |
2076 | if (timercnt) |
2392 | if (timercnt) |
2077 | { |
2393 | { |
2078 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2394 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2085 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2401 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2086 | if (waittime > to) waittime = to; |
2402 | if (waittime > to) waittime = to; |
2087 | } |
2403 | } |
2088 | #endif |
2404 | #endif |
2089 | |
2405 | |
|
|
2406 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2090 | if (expect_false (waittime < timeout_blocktime)) |
2407 | if (expect_false (waittime < timeout_blocktime)) |
2091 | waittime = timeout_blocktime; |
2408 | waittime = timeout_blocktime; |
2092 | |
2409 | |
2093 | sleeptime = waittime - backend_fudge; |
2410 | /* extra check because io_blocktime is commonly 0 */ |
2094 | |
|
|
2095 | if (expect_true (sleeptime > io_blocktime)) |
2411 | if (expect_false (io_blocktime)) |
2096 | sleeptime = io_blocktime; |
|
|
2097 | |
|
|
2098 | if (sleeptime) |
|
|
2099 | { |
2412 | { |
|
|
2413 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2414 | |
|
|
2415 | if (sleeptime > waittime - backend_fudge) |
|
|
2416 | sleeptime = waittime - backend_fudge; |
|
|
2417 | |
|
|
2418 | if (expect_true (sleeptime > 0.)) |
|
|
2419 | { |
2100 | ev_sleep (sleeptime); |
2420 | ev_sleep (sleeptime); |
2101 | waittime -= sleeptime; |
2421 | waittime -= sleeptime; |
|
|
2422 | } |
2102 | } |
2423 | } |
2103 | } |
2424 | } |
2104 | |
2425 | |
|
|
2426 | #if EV_FEATURE_API |
2105 | ++loop_count; |
2427 | ++loop_count; |
|
|
2428 | #endif |
|
|
2429 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2106 | backend_poll (EV_A_ waittime); |
2430 | backend_poll (EV_A_ waittime); |
|
|
2431 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2107 | |
2432 | |
2108 | /* update ev_rt_now, do magic */ |
2433 | /* update ev_rt_now, do magic */ |
2109 | time_update (EV_A_ waittime + sleeptime); |
2434 | time_update (EV_A_ waittime + sleeptime); |
2110 | } |
2435 | } |
2111 | |
2436 | |
… | |
… | |
2118 | #if EV_IDLE_ENABLE |
2443 | #if EV_IDLE_ENABLE |
2119 | /* queue idle watchers unless other events are pending */ |
2444 | /* queue idle watchers unless other events are pending */ |
2120 | idle_reify (EV_A); |
2445 | idle_reify (EV_A); |
2121 | #endif |
2446 | #endif |
2122 | |
2447 | |
|
|
2448 | #if EV_CHECK_ENABLE |
2123 | /* queue check watchers, to be executed first */ |
2449 | /* queue check watchers, to be executed first */ |
2124 | if (expect_false (checkcnt)) |
2450 | if (expect_false (checkcnt)) |
2125 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2451 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2452 | #endif |
2126 | |
2453 | |
2127 | call_pending (EV_A); |
2454 | EV_INVOKE_PENDING; |
2128 | } |
2455 | } |
2129 | while (expect_true ( |
2456 | while (expect_true ( |
2130 | activecnt |
2457 | activecnt |
2131 | && !loop_done |
2458 | && !loop_done |
2132 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2459 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2133 | )); |
2460 | )); |
2134 | |
2461 | |
2135 | if (loop_done == EVUNLOOP_ONE) |
2462 | if (loop_done == EVBREAK_ONE) |
2136 | loop_done = EVUNLOOP_CANCEL; |
2463 | loop_done = EVBREAK_CANCEL; |
2137 | } |
|
|
2138 | |
2464 | |
|
|
2465 | #if EV_FEATURE_API |
|
|
2466 | --loop_depth; |
|
|
2467 | #endif |
|
|
2468 | } |
|
|
2469 | |
2139 | void |
2470 | void |
2140 | ev_unloop (EV_P_ int how) |
2471 | ev_break (EV_P_ int how) |
2141 | { |
2472 | { |
2142 | loop_done = how; |
2473 | loop_done = how; |
2143 | } |
2474 | } |
2144 | |
2475 | |
2145 | void |
2476 | void |
… | |
… | |
2192 | inline_size void |
2523 | inline_size void |
2193 | wlist_del (WL *head, WL elem) |
2524 | wlist_del (WL *head, WL elem) |
2194 | { |
2525 | { |
2195 | while (*head) |
2526 | while (*head) |
2196 | { |
2527 | { |
2197 | if (*head == elem) |
2528 | if (expect_true (*head == elem)) |
2198 | { |
2529 | { |
2199 | *head = elem->next; |
2530 | *head = elem->next; |
2200 | return; |
2531 | break; |
2201 | } |
2532 | } |
2202 | |
2533 | |
2203 | head = &(*head)->next; |
2534 | head = &(*head)->next; |
2204 | } |
2535 | } |
2205 | } |
2536 | } |
… | |
… | |
2233 | } |
2564 | } |
2234 | |
2565 | |
2235 | inline_size void |
2566 | inline_size void |
2236 | pri_adjust (EV_P_ W w) |
2567 | pri_adjust (EV_P_ W w) |
2237 | { |
2568 | { |
2238 | int pri = w->priority; |
2569 | int pri = ev_priority (w); |
2239 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2570 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2240 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2571 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2241 | w->priority = pri; |
2572 | ev_set_priority (w, pri); |
2242 | } |
2573 | } |
2243 | |
2574 | |
2244 | inline_speed void |
2575 | inline_speed void |
2245 | ev_start (EV_P_ W w, int active) |
2576 | ev_start (EV_P_ W w, int active) |
2246 | { |
2577 | { |
… | |
… | |
2265 | |
2596 | |
2266 | if (expect_false (ev_is_active (w))) |
2597 | if (expect_false (ev_is_active (w))) |
2267 | return; |
2598 | return; |
2268 | |
2599 | |
2269 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2600 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2270 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2601 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2271 | |
2602 | |
2272 | EV_FREQUENT_CHECK; |
2603 | EV_FREQUENT_CHECK; |
2273 | |
2604 | |
2274 | ev_start (EV_A_ (W)w, 1); |
2605 | ev_start (EV_A_ (W)w, 1); |
2275 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2606 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2276 | wlist_add (&anfds[fd].head, (WL)w); |
2607 | wlist_add (&anfds[fd].head, (WL)w); |
2277 | |
2608 | |
2278 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2609 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2279 | w->events &= ~EV__IOFDSET; |
2610 | w->events &= ~EV__IOFDSET; |
2280 | |
2611 | |
2281 | EV_FREQUENT_CHECK; |
2612 | EV_FREQUENT_CHECK; |
2282 | } |
2613 | } |
2283 | |
2614 | |
… | |
… | |
2293 | EV_FREQUENT_CHECK; |
2624 | EV_FREQUENT_CHECK; |
2294 | |
2625 | |
2295 | wlist_del (&anfds[w->fd].head, (WL)w); |
2626 | wlist_del (&anfds[w->fd].head, (WL)w); |
2296 | ev_stop (EV_A_ (W)w); |
2627 | ev_stop (EV_A_ (W)w); |
2297 | |
2628 | |
2298 | fd_change (EV_A_ w->fd, 1); |
2629 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2299 | |
2630 | |
2300 | EV_FREQUENT_CHECK; |
2631 | EV_FREQUENT_CHECK; |
2301 | } |
2632 | } |
2302 | |
2633 | |
2303 | void noinline |
2634 | void noinline |
… | |
… | |
2345 | timers [active] = timers [timercnt + HEAP0]; |
2676 | timers [active] = timers [timercnt + HEAP0]; |
2346 | adjustheap (timers, timercnt, active); |
2677 | adjustheap (timers, timercnt, active); |
2347 | } |
2678 | } |
2348 | } |
2679 | } |
2349 | |
2680 | |
2350 | EV_FREQUENT_CHECK; |
|
|
2351 | |
|
|
2352 | ev_at (w) -= mn_now; |
2681 | ev_at (w) -= mn_now; |
2353 | |
2682 | |
2354 | ev_stop (EV_A_ (W)w); |
2683 | ev_stop (EV_A_ (W)w); |
|
|
2684 | |
|
|
2685 | EV_FREQUENT_CHECK; |
2355 | } |
2686 | } |
2356 | |
2687 | |
2357 | void noinline |
2688 | void noinline |
2358 | ev_timer_again (EV_P_ ev_timer *w) |
2689 | ev_timer_again (EV_P_ ev_timer *w) |
2359 | { |
2690 | { |
… | |
… | |
2377 | } |
2708 | } |
2378 | |
2709 | |
2379 | EV_FREQUENT_CHECK; |
2710 | EV_FREQUENT_CHECK; |
2380 | } |
2711 | } |
2381 | |
2712 | |
|
|
2713 | ev_tstamp |
|
|
2714 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2715 | { |
|
|
2716 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2717 | } |
|
|
2718 | |
2382 | #if EV_PERIODIC_ENABLE |
2719 | #if EV_PERIODIC_ENABLE |
2383 | void noinline |
2720 | void noinline |
2384 | ev_periodic_start (EV_P_ ev_periodic *w) |
2721 | ev_periodic_start (EV_P_ ev_periodic *w) |
2385 | { |
2722 | { |
2386 | if (expect_false (ev_is_active (w))) |
2723 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2432 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2769 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2433 | adjustheap (periodics, periodiccnt, active); |
2770 | adjustheap (periodics, periodiccnt, active); |
2434 | } |
2771 | } |
2435 | } |
2772 | } |
2436 | |
2773 | |
2437 | EV_FREQUENT_CHECK; |
|
|
2438 | |
|
|
2439 | ev_stop (EV_A_ (W)w); |
2774 | ev_stop (EV_A_ (W)w); |
|
|
2775 | |
|
|
2776 | EV_FREQUENT_CHECK; |
2440 | } |
2777 | } |
2441 | |
2778 | |
2442 | void noinline |
2779 | void noinline |
2443 | ev_periodic_again (EV_P_ ev_periodic *w) |
2780 | ev_periodic_again (EV_P_ ev_periodic *w) |
2444 | { |
2781 | { |
… | |
… | |
2450 | |
2787 | |
2451 | #ifndef SA_RESTART |
2788 | #ifndef SA_RESTART |
2452 | # define SA_RESTART 0 |
2789 | # define SA_RESTART 0 |
2453 | #endif |
2790 | #endif |
2454 | |
2791 | |
|
|
2792 | #if EV_SIGNAL_ENABLE |
|
|
2793 | |
2455 | void noinline |
2794 | void noinline |
2456 | ev_signal_start (EV_P_ ev_signal *w) |
2795 | ev_signal_start (EV_P_ ev_signal *w) |
2457 | { |
2796 | { |
2458 | #if EV_MULTIPLICITY |
|
|
2459 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2460 | #endif |
|
|
2461 | if (expect_false (ev_is_active (w))) |
2797 | if (expect_false (ev_is_active (w))) |
2462 | return; |
2798 | return; |
2463 | |
2799 | |
2464 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2800 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2465 | |
2801 | |
2466 | evpipe_init (EV_A); |
2802 | #if EV_MULTIPLICITY |
|
|
2803 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2804 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2467 | |
2805 | |
2468 | EV_FREQUENT_CHECK; |
2806 | signals [w->signum - 1].loop = EV_A; |
|
|
2807 | #endif |
2469 | |
2808 | |
|
|
2809 | EV_FREQUENT_CHECK; |
|
|
2810 | |
|
|
2811 | #if EV_USE_SIGNALFD |
|
|
2812 | if (sigfd == -2) |
2470 | { |
2813 | { |
2471 | #ifndef _WIN32 |
2814 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2472 | sigset_t full, prev; |
2815 | if (sigfd < 0 && errno == EINVAL) |
2473 | sigfillset (&full); |
2816 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2474 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2475 | #endif |
|
|
2476 | |
2817 | |
2477 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2818 | if (sigfd >= 0) |
|
|
2819 | { |
|
|
2820 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2478 | |
2821 | |
2479 | #ifndef _WIN32 |
2822 | sigemptyset (&sigfd_set); |
2480 | sigprocmask (SIG_SETMASK, &prev, 0); |
2823 | |
2481 | #endif |
2824 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2825 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2826 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2827 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2828 | } |
2482 | } |
2829 | } |
|
|
2830 | |
|
|
2831 | if (sigfd >= 0) |
|
|
2832 | { |
|
|
2833 | /* TODO: check .head */ |
|
|
2834 | sigaddset (&sigfd_set, w->signum); |
|
|
2835 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2836 | |
|
|
2837 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2838 | } |
|
|
2839 | #endif |
2483 | |
2840 | |
2484 | ev_start (EV_A_ (W)w, 1); |
2841 | ev_start (EV_A_ (W)w, 1); |
2485 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2842 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2486 | |
2843 | |
2487 | if (!((WL)w)->next) |
2844 | if (!((WL)w)->next) |
|
|
2845 | # if EV_USE_SIGNALFD |
|
|
2846 | if (sigfd < 0) /*TODO*/ |
|
|
2847 | # endif |
2488 | { |
2848 | { |
2489 | #if _WIN32 |
2849 | # ifdef _WIN32 |
|
|
2850 | evpipe_init (EV_A); |
|
|
2851 | |
2490 | signal (w->signum, ev_sighandler); |
2852 | signal (w->signum, ev_sighandler); |
2491 | #else |
2853 | # else |
2492 | struct sigaction sa; |
2854 | struct sigaction sa; |
|
|
2855 | |
|
|
2856 | evpipe_init (EV_A); |
|
|
2857 | |
2493 | sa.sa_handler = ev_sighandler; |
2858 | sa.sa_handler = ev_sighandler; |
2494 | sigfillset (&sa.sa_mask); |
2859 | sigfillset (&sa.sa_mask); |
2495 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2860 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2496 | sigaction (w->signum, &sa, 0); |
2861 | sigaction (w->signum, &sa, 0); |
|
|
2862 | |
|
|
2863 | sigemptyset (&sa.sa_mask); |
|
|
2864 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2865 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2497 | #endif |
2866 | #endif |
2498 | } |
2867 | } |
2499 | |
2868 | |
2500 | EV_FREQUENT_CHECK; |
2869 | EV_FREQUENT_CHECK; |
2501 | } |
2870 | } |
2502 | |
2871 | |
2503 | void noinline |
2872 | void noinline |
… | |
… | |
2511 | |
2880 | |
2512 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2881 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2513 | ev_stop (EV_A_ (W)w); |
2882 | ev_stop (EV_A_ (W)w); |
2514 | |
2883 | |
2515 | if (!signals [w->signum - 1].head) |
2884 | if (!signals [w->signum - 1].head) |
|
|
2885 | { |
|
|
2886 | #if EV_MULTIPLICITY |
|
|
2887 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2888 | #endif |
|
|
2889 | #if EV_USE_SIGNALFD |
|
|
2890 | if (sigfd >= 0) |
|
|
2891 | { |
|
|
2892 | sigset_t ss; |
|
|
2893 | |
|
|
2894 | sigemptyset (&ss); |
|
|
2895 | sigaddset (&ss, w->signum); |
|
|
2896 | sigdelset (&sigfd_set, w->signum); |
|
|
2897 | |
|
|
2898 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2899 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2900 | } |
|
|
2901 | else |
|
|
2902 | #endif |
2516 | signal (w->signum, SIG_DFL); |
2903 | signal (w->signum, SIG_DFL); |
|
|
2904 | } |
2517 | |
2905 | |
2518 | EV_FREQUENT_CHECK; |
2906 | EV_FREQUENT_CHECK; |
2519 | } |
2907 | } |
|
|
2908 | |
|
|
2909 | #endif |
|
|
2910 | |
|
|
2911 | #if EV_CHILD_ENABLE |
2520 | |
2912 | |
2521 | void |
2913 | void |
2522 | ev_child_start (EV_P_ ev_child *w) |
2914 | ev_child_start (EV_P_ ev_child *w) |
2523 | { |
2915 | { |
2524 | #if EV_MULTIPLICITY |
2916 | #if EV_MULTIPLICITY |
… | |
… | |
2528 | return; |
2920 | return; |
2529 | |
2921 | |
2530 | EV_FREQUENT_CHECK; |
2922 | EV_FREQUENT_CHECK; |
2531 | |
2923 | |
2532 | ev_start (EV_A_ (W)w, 1); |
2924 | ev_start (EV_A_ (W)w, 1); |
2533 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2925 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2534 | |
2926 | |
2535 | EV_FREQUENT_CHECK; |
2927 | EV_FREQUENT_CHECK; |
2536 | } |
2928 | } |
2537 | |
2929 | |
2538 | void |
2930 | void |
… | |
… | |
2542 | if (expect_false (!ev_is_active (w))) |
2934 | if (expect_false (!ev_is_active (w))) |
2543 | return; |
2935 | return; |
2544 | |
2936 | |
2545 | EV_FREQUENT_CHECK; |
2937 | EV_FREQUENT_CHECK; |
2546 | |
2938 | |
2547 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2939 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2548 | ev_stop (EV_A_ (W)w); |
2940 | ev_stop (EV_A_ (W)w); |
2549 | |
2941 | |
2550 | EV_FREQUENT_CHECK; |
2942 | EV_FREQUENT_CHECK; |
2551 | } |
2943 | } |
|
|
2944 | |
|
|
2945 | #endif |
2552 | |
2946 | |
2553 | #if EV_STAT_ENABLE |
2947 | #if EV_STAT_ENABLE |
2554 | |
2948 | |
2555 | # ifdef _WIN32 |
2949 | # ifdef _WIN32 |
2556 | # undef lstat |
2950 | # undef lstat |
… | |
… | |
2562 | #define MIN_STAT_INTERVAL 0.1074891 |
2956 | #define MIN_STAT_INTERVAL 0.1074891 |
2563 | |
2957 | |
2564 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2958 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2565 | |
2959 | |
2566 | #if EV_USE_INOTIFY |
2960 | #if EV_USE_INOTIFY |
2567 | # define EV_INOTIFY_BUFSIZE 8192 |
2961 | |
|
|
2962 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2963 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2568 | |
2964 | |
2569 | static void noinline |
2965 | static void noinline |
2570 | infy_add (EV_P_ ev_stat *w) |
2966 | infy_add (EV_P_ ev_stat *w) |
2571 | { |
2967 | { |
2572 | 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); |
2968 | 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); |
2573 | |
2969 | |
2574 | if (w->wd < 0) |
2970 | if (w->wd >= 0) |
|
|
2971 | { |
|
|
2972 | struct statfs sfs; |
|
|
2973 | |
|
|
2974 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2975 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2976 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2977 | |
|
|
2978 | if (!fs_2625) |
|
|
2979 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2980 | else if (!statfs (w->path, &sfs) |
|
|
2981 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2982 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2983 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2984 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2985 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2986 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2987 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2988 | else |
|
|
2989 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2575 | { |
2990 | } |
|
|
2991 | else |
|
|
2992 | { |
|
|
2993 | /* can't use inotify, continue to stat */ |
2576 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2994 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2577 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2578 | |
2995 | |
2579 | /* monitor some parent directory for speedup hints */ |
2996 | /* if path is not there, monitor some parent directory for speedup hints */ |
2580 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2997 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2581 | /* but an efficiency issue only */ |
2998 | /* but an efficiency issue only */ |
2582 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2999 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2583 | { |
3000 | { |
2584 | char path [4096]; |
3001 | char path [4096]; |
… | |
… | |
2600 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3017 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2601 | } |
3018 | } |
2602 | } |
3019 | } |
2603 | |
3020 | |
2604 | if (w->wd >= 0) |
3021 | if (w->wd >= 0) |
2605 | { |
|
|
2606 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3022 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2607 | |
3023 | |
2608 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3024 | /* now re-arm timer, if required */ |
2609 | /* unless the filesystem it known to be local, we therefore still poll */ |
3025 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2610 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2611 | struct statfs sfs; |
|
|
2612 | |
|
|
2613 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2614 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2615 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2616 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2617 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2618 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2619 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2620 | return; |
|
|
2621 | |
|
|
2622 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2623 | ev_timer_again (EV_A_ &w->timer); |
3026 | ev_timer_again (EV_A_ &w->timer); |
2624 | } |
3027 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2625 | } |
3028 | } |
2626 | |
3029 | |
2627 | static void noinline |
3030 | static void noinline |
2628 | infy_del (EV_P_ ev_stat *w) |
3031 | infy_del (EV_P_ ev_stat *w) |
2629 | { |
3032 | { |
… | |
… | |
2632 | |
3035 | |
2633 | if (wd < 0) |
3036 | if (wd < 0) |
2634 | return; |
3037 | return; |
2635 | |
3038 | |
2636 | w->wd = -2; |
3039 | w->wd = -2; |
2637 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3040 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2638 | wlist_del (&fs_hash [slot].head, (WL)w); |
3041 | wlist_del (&fs_hash [slot].head, (WL)w); |
2639 | |
3042 | |
2640 | /* remove this watcher, if others are watching it, they will rearm */ |
3043 | /* remove this watcher, if others are watching it, they will rearm */ |
2641 | inotify_rm_watch (fs_fd, wd); |
3044 | inotify_rm_watch (fs_fd, wd); |
2642 | } |
3045 | } |
… | |
… | |
2644 | static void noinline |
3047 | static void noinline |
2645 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3048 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2646 | { |
3049 | { |
2647 | if (slot < 0) |
3050 | if (slot < 0) |
2648 | /* overflow, need to check for all hash slots */ |
3051 | /* overflow, need to check for all hash slots */ |
2649 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3052 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2650 | infy_wd (EV_A_ slot, wd, ev); |
3053 | infy_wd (EV_A_ slot, wd, ev); |
2651 | else |
3054 | else |
2652 | { |
3055 | { |
2653 | WL w_; |
3056 | WL w_; |
2654 | |
3057 | |
2655 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3058 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2656 | { |
3059 | { |
2657 | ev_stat *w = (ev_stat *)w_; |
3060 | ev_stat *w = (ev_stat *)w_; |
2658 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3061 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2659 | |
3062 | |
2660 | if (w->wd == wd || wd == -1) |
3063 | if (w->wd == wd || wd == -1) |
2661 | { |
3064 | { |
2662 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3065 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2663 | { |
3066 | { |
2664 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3067 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2665 | w->wd = -1; |
3068 | w->wd = -1; |
2666 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3069 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2667 | } |
3070 | } |
2668 | |
3071 | |
2669 | stat_timer_cb (EV_A_ &w->timer, 0); |
3072 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2674 | |
3077 | |
2675 | static void |
3078 | static void |
2676 | infy_cb (EV_P_ ev_io *w, int revents) |
3079 | infy_cb (EV_P_ ev_io *w, int revents) |
2677 | { |
3080 | { |
2678 | char buf [EV_INOTIFY_BUFSIZE]; |
3081 | char buf [EV_INOTIFY_BUFSIZE]; |
2679 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2680 | int ofs; |
3082 | int ofs; |
2681 | int len = read (fs_fd, buf, sizeof (buf)); |
3083 | int len = read (fs_fd, buf, sizeof (buf)); |
2682 | |
3084 | |
2683 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3085 | for (ofs = 0; ofs < len; ) |
|
|
3086 | { |
|
|
3087 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2684 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3088 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3089 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3090 | } |
2685 | } |
3091 | } |
2686 | |
3092 | |
2687 | inline_size void |
3093 | inline_size void |
2688 | check_2625 (EV_P) |
3094 | ev_check_2625 (EV_P) |
2689 | { |
3095 | { |
2690 | /* kernels < 2.6.25 are borked |
3096 | /* kernels < 2.6.25 are borked |
2691 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3097 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2692 | */ |
3098 | */ |
2693 | struct utsname buf; |
3099 | if (ev_linux_version () < 0x020619) |
2694 | int major, minor, micro; |
|
|
2695 | |
|
|
2696 | if (uname (&buf)) |
|
|
2697 | return; |
3100 | return; |
2698 | |
3101 | |
2699 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2700 | return; |
|
|
2701 | |
|
|
2702 | if (major < 2 |
|
|
2703 | || (major == 2 && minor < 6) |
|
|
2704 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2705 | return; |
|
|
2706 | |
|
|
2707 | fs_2625 = 1; |
3102 | fs_2625 = 1; |
|
|
3103 | } |
|
|
3104 | |
|
|
3105 | inline_size int |
|
|
3106 | infy_newfd (void) |
|
|
3107 | { |
|
|
3108 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3109 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3110 | if (fd >= 0) |
|
|
3111 | return fd; |
|
|
3112 | #endif |
|
|
3113 | return inotify_init (); |
2708 | } |
3114 | } |
2709 | |
3115 | |
2710 | inline_size void |
3116 | inline_size void |
2711 | infy_init (EV_P) |
3117 | infy_init (EV_P) |
2712 | { |
3118 | { |
2713 | if (fs_fd != -2) |
3119 | if (fs_fd != -2) |
2714 | return; |
3120 | return; |
2715 | |
3121 | |
2716 | fs_fd = -1; |
3122 | fs_fd = -1; |
2717 | |
3123 | |
2718 | check_2625 (EV_A); |
3124 | ev_check_2625 (EV_A); |
2719 | |
3125 | |
2720 | fs_fd = inotify_init (); |
3126 | fs_fd = infy_newfd (); |
2721 | |
3127 | |
2722 | if (fs_fd >= 0) |
3128 | if (fs_fd >= 0) |
2723 | { |
3129 | { |
|
|
3130 | fd_intern (fs_fd); |
2724 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3131 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2725 | ev_set_priority (&fs_w, EV_MAXPRI); |
3132 | ev_set_priority (&fs_w, EV_MAXPRI); |
2726 | ev_io_start (EV_A_ &fs_w); |
3133 | ev_io_start (EV_A_ &fs_w); |
|
|
3134 | ev_unref (EV_A); |
2727 | } |
3135 | } |
2728 | } |
3136 | } |
2729 | |
3137 | |
2730 | inline_size void |
3138 | inline_size void |
2731 | infy_fork (EV_P) |
3139 | infy_fork (EV_P) |
… | |
… | |
2733 | int slot; |
3141 | int slot; |
2734 | |
3142 | |
2735 | if (fs_fd < 0) |
3143 | if (fs_fd < 0) |
2736 | return; |
3144 | return; |
2737 | |
3145 | |
|
|
3146 | ev_ref (EV_A); |
|
|
3147 | ev_io_stop (EV_A_ &fs_w); |
2738 | close (fs_fd); |
3148 | close (fs_fd); |
2739 | fs_fd = inotify_init (); |
3149 | fs_fd = infy_newfd (); |
2740 | |
3150 | |
|
|
3151 | if (fs_fd >= 0) |
|
|
3152 | { |
|
|
3153 | fd_intern (fs_fd); |
|
|
3154 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3155 | ev_io_start (EV_A_ &fs_w); |
|
|
3156 | ev_unref (EV_A); |
|
|
3157 | } |
|
|
3158 | |
2741 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3159 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2742 | { |
3160 | { |
2743 | WL w_ = fs_hash [slot].head; |
3161 | WL w_ = fs_hash [slot].head; |
2744 | fs_hash [slot].head = 0; |
3162 | fs_hash [slot].head = 0; |
2745 | |
3163 | |
2746 | while (w_) |
3164 | while (w_) |
… | |
… | |
2751 | w->wd = -1; |
3169 | w->wd = -1; |
2752 | |
3170 | |
2753 | if (fs_fd >= 0) |
3171 | if (fs_fd >= 0) |
2754 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3172 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2755 | else |
3173 | else |
|
|
3174 | { |
|
|
3175 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3176 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2756 | ev_timer_again (EV_A_ &w->timer); |
3177 | ev_timer_again (EV_A_ &w->timer); |
|
|
3178 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3179 | } |
2757 | } |
3180 | } |
2758 | } |
3181 | } |
2759 | } |
3182 | } |
2760 | |
3183 | |
2761 | #endif |
3184 | #endif |
… | |
… | |
2778 | static void noinline |
3201 | static void noinline |
2779 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3202 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2780 | { |
3203 | { |
2781 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3204 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2782 | |
3205 | |
2783 | /* we copy this here each the time so that */ |
3206 | ev_statdata prev = w->attr; |
2784 | /* prev has the old value when the callback gets invoked */ |
|
|
2785 | w->prev = w->attr; |
|
|
2786 | ev_stat_stat (EV_A_ w); |
3207 | ev_stat_stat (EV_A_ w); |
2787 | |
3208 | |
2788 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3209 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2789 | if ( |
3210 | if ( |
2790 | w->prev.st_dev != w->attr.st_dev |
3211 | prev.st_dev != w->attr.st_dev |
2791 | || w->prev.st_ino != w->attr.st_ino |
3212 | || prev.st_ino != w->attr.st_ino |
2792 | || w->prev.st_mode != w->attr.st_mode |
3213 | || prev.st_mode != w->attr.st_mode |
2793 | || w->prev.st_nlink != w->attr.st_nlink |
3214 | || prev.st_nlink != w->attr.st_nlink |
2794 | || w->prev.st_uid != w->attr.st_uid |
3215 | || prev.st_uid != w->attr.st_uid |
2795 | || w->prev.st_gid != w->attr.st_gid |
3216 | || prev.st_gid != w->attr.st_gid |
2796 | || w->prev.st_rdev != w->attr.st_rdev |
3217 | || prev.st_rdev != w->attr.st_rdev |
2797 | || w->prev.st_size != w->attr.st_size |
3218 | || prev.st_size != w->attr.st_size |
2798 | || w->prev.st_atime != w->attr.st_atime |
3219 | || prev.st_atime != w->attr.st_atime |
2799 | || w->prev.st_mtime != w->attr.st_mtime |
3220 | || prev.st_mtime != w->attr.st_mtime |
2800 | || w->prev.st_ctime != w->attr.st_ctime |
3221 | || prev.st_ctime != w->attr.st_ctime |
2801 | ) { |
3222 | ) { |
|
|
3223 | /* we only update w->prev on actual differences */ |
|
|
3224 | /* in case we test more often than invoke the callback, */ |
|
|
3225 | /* to ensure that prev is always different to attr */ |
|
|
3226 | w->prev = prev; |
|
|
3227 | |
2802 | #if EV_USE_INOTIFY |
3228 | #if EV_USE_INOTIFY |
2803 | if (fs_fd >= 0) |
3229 | if (fs_fd >= 0) |
2804 | { |
3230 | { |
2805 | infy_del (EV_A_ w); |
3231 | infy_del (EV_A_ w); |
2806 | infy_add (EV_A_ w); |
3232 | infy_add (EV_A_ w); |
… | |
… | |
2831 | |
3257 | |
2832 | if (fs_fd >= 0) |
3258 | if (fs_fd >= 0) |
2833 | infy_add (EV_A_ w); |
3259 | infy_add (EV_A_ w); |
2834 | else |
3260 | else |
2835 | #endif |
3261 | #endif |
|
|
3262 | { |
2836 | ev_timer_again (EV_A_ &w->timer); |
3263 | ev_timer_again (EV_A_ &w->timer); |
|
|
3264 | ev_unref (EV_A); |
|
|
3265 | } |
2837 | |
3266 | |
2838 | ev_start (EV_A_ (W)w, 1); |
3267 | ev_start (EV_A_ (W)w, 1); |
2839 | |
3268 | |
2840 | EV_FREQUENT_CHECK; |
3269 | EV_FREQUENT_CHECK; |
2841 | } |
3270 | } |
… | |
… | |
2850 | EV_FREQUENT_CHECK; |
3279 | EV_FREQUENT_CHECK; |
2851 | |
3280 | |
2852 | #if EV_USE_INOTIFY |
3281 | #if EV_USE_INOTIFY |
2853 | infy_del (EV_A_ w); |
3282 | infy_del (EV_A_ w); |
2854 | #endif |
3283 | #endif |
|
|
3284 | |
|
|
3285 | if (ev_is_active (&w->timer)) |
|
|
3286 | { |
|
|
3287 | ev_ref (EV_A); |
2855 | ev_timer_stop (EV_A_ &w->timer); |
3288 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3289 | } |
2856 | |
3290 | |
2857 | ev_stop (EV_A_ (W)w); |
3291 | ev_stop (EV_A_ (W)w); |
2858 | |
3292 | |
2859 | EV_FREQUENT_CHECK; |
3293 | EV_FREQUENT_CHECK; |
2860 | } |
3294 | } |
… | |
… | |
2905 | |
3339 | |
2906 | EV_FREQUENT_CHECK; |
3340 | EV_FREQUENT_CHECK; |
2907 | } |
3341 | } |
2908 | #endif |
3342 | #endif |
2909 | |
3343 | |
|
|
3344 | #if EV_PREPARE_ENABLE |
2910 | void |
3345 | void |
2911 | ev_prepare_start (EV_P_ ev_prepare *w) |
3346 | ev_prepare_start (EV_P_ ev_prepare *w) |
2912 | { |
3347 | { |
2913 | if (expect_false (ev_is_active (w))) |
3348 | if (expect_false (ev_is_active (w))) |
2914 | return; |
3349 | return; |
… | |
… | |
2940 | |
3375 | |
2941 | ev_stop (EV_A_ (W)w); |
3376 | ev_stop (EV_A_ (W)w); |
2942 | |
3377 | |
2943 | EV_FREQUENT_CHECK; |
3378 | EV_FREQUENT_CHECK; |
2944 | } |
3379 | } |
|
|
3380 | #endif |
2945 | |
3381 | |
|
|
3382 | #if EV_CHECK_ENABLE |
2946 | void |
3383 | void |
2947 | ev_check_start (EV_P_ ev_check *w) |
3384 | ev_check_start (EV_P_ ev_check *w) |
2948 | { |
3385 | { |
2949 | if (expect_false (ev_is_active (w))) |
3386 | if (expect_false (ev_is_active (w))) |
2950 | return; |
3387 | return; |
… | |
… | |
2976 | |
3413 | |
2977 | ev_stop (EV_A_ (W)w); |
3414 | ev_stop (EV_A_ (W)w); |
2978 | |
3415 | |
2979 | EV_FREQUENT_CHECK; |
3416 | EV_FREQUENT_CHECK; |
2980 | } |
3417 | } |
|
|
3418 | #endif |
2981 | |
3419 | |
2982 | #if EV_EMBED_ENABLE |
3420 | #if EV_EMBED_ENABLE |
2983 | void noinline |
3421 | void noinline |
2984 | ev_embed_sweep (EV_P_ ev_embed *w) |
3422 | ev_embed_sweep (EV_P_ ev_embed *w) |
2985 | { |
3423 | { |
2986 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3424 | ev_run (w->other, EVRUN_NOWAIT); |
2987 | } |
3425 | } |
2988 | |
3426 | |
2989 | static void |
3427 | static void |
2990 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3428 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2991 | { |
3429 | { |
2992 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3430 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2993 | |
3431 | |
2994 | if (ev_cb (w)) |
3432 | if (ev_cb (w)) |
2995 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3433 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2996 | else |
3434 | else |
2997 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3435 | ev_run (w->other, EVRUN_NOWAIT); |
2998 | } |
3436 | } |
2999 | |
3437 | |
3000 | static void |
3438 | static void |
3001 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3439 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3002 | { |
3440 | { |
3003 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3441 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3004 | |
3442 | |
3005 | { |
3443 | { |
3006 | struct ev_loop *loop = w->other; |
3444 | EV_P = w->other; |
3007 | |
3445 | |
3008 | while (fdchangecnt) |
3446 | while (fdchangecnt) |
3009 | { |
3447 | { |
3010 | fd_reify (EV_A); |
3448 | fd_reify (EV_A); |
3011 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3449 | ev_run (EV_A_ EVRUN_NOWAIT); |
3012 | } |
3450 | } |
3013 | } |
3451 | } |
3014 | } |
3452 | } |
3015 | |
3453 | |
3016 | static void |
3454 | static void |
… | |
… | |
3019 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3457 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3020 | |
3458 | |
3021 | ev_embed_stop (EV_A_ w); |
3459 | ev_embed_stop (EV_A_ w); |
3022 | |
3460 | |
3023 | { |
3461 | { |
3024 | struct ev_loop *loop = w->other; |
3462 | EV_P = w->other; |
3025 | |
3463 | |
3026 | ev_loop_fork (EV_A); |
3464 | ev_loop_fork (EV_A); |
3027 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3465 | ev_run (EV_A_ EVRUN_NOWAIT); |
3028 | } |
3466 | } |
3029 | |
3467 | |
3030 | ev_embed_start (EV_A_ w); |
3468 | ev_embed_start (EV_A_ w); |
3031 | } |
3469 | } |
3032 | |
3470 | |
… | |
… | |
3043 | { |
3481 | { |
3044 | if (expect_false (ev_is_active (w))) |
3482 | if (expect_false (ev_is_active (w))) |
3045 | return; |
3483 | return; |
3046 | |
3484 | |
3047 | { |
3485 | { |
3048 | struct ev_loop *loop = w->other; |
3486 | EV_P = w->other; |
3049 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3487 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3050 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3488 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3051 | } |
3489 | } |
3052 | |
3490 | |
3053 | EV_FREQUENT_CHECK; |
3491 | EV_FREQUENT_CHECK; |
… | |
… | |
3080 | |
3518 | |
3081 | ev_io_stop (EV_A_ &w->io); |
3519 | ev_io_stop (EV_A_ &w->io); |
3082 | ev_prepare_stop (EV_A_ &w->prepare); |
3520 | ev_prepare_stop (EV_A_ &w->prepare); |
3083 | ev_fork_stop (EV_A_ &w->fork); |
3521 | ev_fork_stop (EV_A_ &w->fork); |
3084 | |
3522 | |
|
|
3523 | ev_stop (EV_A_ (W)w); |
|
|
3524 | |
3085 | EV_FREQUENT_CHECK; |
3525 | EV_FREQUENT_CHECK; |
3086 | } |
3526 | } |
3087 | #endif |
3527 | #endif |
3088 | |
3528 | |
3089 | #if EV_FORK_ENABLE |
3529 | #if EV_FORK_ENABLE |
… | |
… | |
3129 | ev_async_start (EV_P_ ev_async *w) |
3569 | ev_async_start (EV_P_ ev_async *w) |
3130 | { |
3570 | { |
3131 | if (expect_false (ev_is_active (w))) |
3571 | if (expect_false (ev_is_active (w))) |
3132 | return; |
3572 | return; |
3133 | |
3573 | |
|
|
3574 | w->sent = 0; |
|
|
3575 | |
3134 | evpipe_init (EV_A); |
3576 | evpipe_init (EV_A); |
3135 | |
3577 | |
3136 | EV_FREQUENT_CHECK; |
3578 | EV_FREQUENT_CHECK; |
3137 | |
3579 | |
3138 | ev_start (EV_A_ (W)w, ++asynccnt); |
3580 | ev_start (EV_A_ (W)w, ++asynccnt); |
… | |
… | |
3165 | |
3607 | |
3166 | void |
3608 | void |
3167 | ev_async_send (EV_P_ ev_async *w) |
3609 | ev_async_send (EV_P_ ev_async *w) |
3168 | { |
3610 | { |
3169 | w->sent = 1; |
3611 | w->sent = 1; |
3170 | evpipe_write (EV_A_ &gotasync); |
3612 | evpipe_write (EV_A_ &async_pending); |
3171 | } |
3613 | } |
3172 | #endif |
3614 | #endif |
3173 | |
3615 | |
3174 | /*****************************************************************************/ |
3616 | /*****************************************************************************/ |
3175 | |
3617 | |
… | |
… | |
3215 | { |
3657 | { |
3216 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3658 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3217 | |
3659 | |
3218 | if (expect_false (!once)) |
3660 | if (expect_false (!once)) |
3219 | { |
3661 | { |
3220 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3662 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3221 | return; |
3663 | return; |
3222 | } |
3664 | } |
3223 | |
3665 | |
3224 | once->cb = cb; |
3666 | once->cb = cb; |
3225 | once->arg = arg; |
3667 | once->arg = arg; |
… | |
… | |
3312 | if (types & EV_ASYNC) |
3754 | if (types & EV_ASYNC) |
3313 | for (i = asynccnt; i--; ) |
3755 | for (i = asynccnt; i--; ) |
3314 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3756 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3315 | #endif |
3757 | #endif |
3316 | |
3758 | |
|
|
3759 | #if EV_PREPARE_ENABLE |
3317 | if (types & EV_PREPARE) |
3760 | if (types & EV_PREPARE) |
3318 | for (i = preparecnt; i--; ) |
3761 | for (i = preparecnt; i--; ) |
3319 | #if EV_EMBED_ENABLE |
3762 | # if EV_EMBED_ENABLE |
3320 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3763 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3321 | #endif |
3764 | # endif |
3322 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3765 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3766 | #endif |
3323 | |
3767 | |
|
|
3768 | #if EV_CHECK_ENABLE |
3324 | if (types & EV_CHECK) |
3769 | if (types & EV_CHECK) |
3325 | for (i = checkcnt; i--; ) |
3770 | for (i = checkcnt; i--; ) |
3326 | cb (EV_A_ EV_CHECK, checks [i]); |
3771 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3772 | #endif |
3327 | |
3773 | |
|
|
3774 | #if EV_SIGNAL_ENABLE |
3328 | if (types & EV_SIGNAL) |
3775 | if (types & EV_SIGNAL) |
3329 | for (i = 0; i < signalmax; ++i) |
3776 | for (i = 0; i < EV_NSIG - 1; ++i) |
3330 | for (wl = signals [i].head; wl; ) |
3777 | for (wl = signals [i].head; wl; ) |
3331 | { |
3778 | { |
3332 | wn = wl->next; |
3779 | wn = wl->next; |
3333 | cb (EV_A_ EV_SIGNAL, wl); |
3780 | cb (EV_A_ EV_SIGNAL, wl); |
3334 | wl = wn; |
3781 | wl = wn; |
3335 | } |
3782 | } |
|
|
3783 | #endif |
3336 | |
3784 | |
|
|
3785 | #if EV_CHILD_ENABLE |
3337 | if (types & EV_CHILD) |
3786 | if (types & EV_CHILD) |
3338 | for (i = EV_PID_HASHSIZE; i--; ) |
3787 | for (i = (EV_PID_HASHSIZE); i--; ) |
3339 | for (wl = childs [i]; wl; ) |
3788 | for (wl = childs [i]; wl; ) |
3340 | { |
3789 | { |
3341 | wn = wl->next; |
3790 | wn = wl->next; |
3342 | cb (EV_A_ EV_CHILD, wl); |
3791 | cb (EV_A_ EV_CHILD, wl); |
3343 | wl = wn; |
3792 | wl = wn; |
3344 | } |
3793 | } |
|
|
3794 | #endif |
3345 | /* EV_STAT 0x00001000 /* stat data changed */ |
3795 | /* EV_STAT 0x00001000 /* stat data changed */ |
3346 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3796 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3347 | } |
3797 | } |
3348 | #endif |
3798 | #endif |
3349 | |
3799 | |
3350 | #if EV_MULTIPLICITY |
3800 | #if EV_MULTIPLICITY |
3351 | #include "ev_wrap.h" |
3801 | #include "ev_wrap.h" |
3352 | #endif |
3802 | #endif |
3353 | |
3803 | |
3354 | #ifdef __cplusplus |
3804 | EV_CPP(}) |
3355 | } |
|
|
3356 | #endif |
|
|
3357 | |
3805 | |