1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 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 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
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|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
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|
55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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|
58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
|
|
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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|
64 | # endif |
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65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
119 | # else |
133 | # else |
120 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
121 | # endif |
135 | # endif |
122 | # endif |
136 | # endif |
123 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
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|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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140 | # define EV_USE_SIGNALFD 1 |
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141 | # else |
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142 | # define EV_USE_SIGNALFD 0 |
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143 | # endif |
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|
144 | # endif |
|
|
145 | |
124 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
125 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
126 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
127 | # else |
149 | # else |
128 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
129 | # endif |
151 | # endif |
130 | # endif |
152 | # endif |
131 | |
153 | |
132 | #endif |
154 | #endif |
133 | |
155 | |
134 | #include <math.h> |
156 | #include <math.h> |
135 | #include <stdlib.h> |
157 | #include <stdlib.h> |
136 | #include <fcntl.h> |
158 | #include <fcntl.h> |
… | |
… | |
154 | #ifndef _WIN32 |
176 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
177 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
178 | # include <sys/wait.h> |
157 | # include <unistd.h> |
179 | # include <unistd.h> |
158 | #else |
180 | #else |
|
|
181 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
182 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
183 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
186 | # endif |
164 | #endif |
187 | #endif |
165 | |
188 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
190 | |
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|
191 | /* try to deduce the maximum number of signals on this platform */ |
|
|
192 | #if defined (EV_NSIG) |
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|
193 | /* use what's provided */ |
|
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194 | #elif defined (NSIG) |
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195 | # define EV_NSIG (NSIG) |
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196 | #elif defined(_NSIG) |
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197 | # define EV_NSIG (_NSIG) |
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198 | #elif defined (SIGMAX) |
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199 | # define EV_NSIG (SIGMAX+1) |
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200 | #elif defined (SIG_MAX) |
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201 | # define EV_NSIG (SIG_MAX+1) |
|
|
202 | #elif defined (_SIG_MAX) |
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203 | # define EV_NSIG (_SIG_MAX+1) |
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|
204 | #elif defined (MAXSIG) |
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205 | # define EV_NSIG (MAXSIG+1) |
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206 | #elif defined (MAX_SIG) |
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207 | # define EV_NSIG (MAX_SIG+1) |
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208 | #elif defined (SIGARRAYSIZE) |
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209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
|
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210 | #elif defined (_sys_nsig) |
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211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
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212 | #else |
|
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213 | # error "unable to find value for NSIG, please report" |
|
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214 | /* to make it compile regardless, just remove the above line */ |
|
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215 | # define EV_NSIG 64 |
|
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216 | #endif |
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217 | |
|
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218 | /* Default to some arbitrary number that's big enough to get most |
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219 | of the common signals. |
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220 | */ |
|
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221 | #ifndef NSIG |
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222 | # define NSIG 50 |
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223 | #endif |
|
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224 | /* <-- NSIG logic from Configure */ |
|
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225 | #ifndef EV_USE_CLOCK_SYSCALL |
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226 | # if __linux && __GLIBC__ >= 2 |
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227 | # define EV_USE_CLOCK_SYSCALL 1 |
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228 | # else |
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229 | # define EV_USE_CLOCK_SYSCALL 0 |
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230 | # endif |
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231 | #endif |
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232 | |
168 | #ifndef EV_USE_MONOTONIC |
233 | #ifndef EV_USE_MONOTONIC |
|
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234 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
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235 | # define EV_USE_MONOTONIC 1 |
|
|
236 | # else |
169 | # define EV_USE_MONOTONIC 0 |
237 | # define EV_USE_MONOTONIC 0 |
|
|
238 | # endif |
170 | #endif |
239 | #endif |
171 | |
240 | |
172 | #ifndef EV_USE_REALTIME |
241 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
242 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
243 | #endif |
175 | |
244 | |
176 | #ifndef EV_USE_NANOSLEEP |
245 | #ifndef EV_USE_NANOSLEEP |
|
|
246 | # if _POSIX_C_SOURCE >= 199309L |
|
|
247 | # define EV_USE_NANOSLEEP 1 |
|
|
248 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
249 | # define EV_USE_NANOSLEEP 0 |
|
|
250 | # endif |
178 | #endif |
251 | #endif |
179 | |
252 | |
180 | #ifndef EV_USE_SELECT |
253 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
254 | # define EV_USE_SELECT 1 |
182 | #endif |
255 | #endif |
… | |
… | |
235 | # else |
308 | # else |
236 | # define EV_USE_EVENTFD 0 |
309 | # define EV_USE_EVENTFD 0 |
237 | # endif |
310 | # endif |
238 | #endif |
311 | #endif |
239 | |
312 | |
|
|
313 | #ifndef EV_USE_SIGNALFD |
|
|
314 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
|
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315 | # define EV_USE_SIGNALFD 1 |
|
|
316 | # else |
|
|
317 | # define EV_USE_SIGNALFD 0 |
|
|
318 | # endif |
|
|
319 | #endif |
|
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320 | |
|
|
321 | #if 0 /* debugging */ |
|
|
322 | # define EV_VERIFY 3 |
|
|
323 | # define EV_USE_4HEAP 1 |
|
|
324 | # define EV_HEAP_CACHE_AT 1 |
|
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325 | #endif |
|
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326 | |
|
|
327 | #ifndef EV_VERIFY |
|
|
328 | # define EV_VERIFY !EV_MINIMAL |
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329 | #endif |
|
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330 | |
|
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331 | #ifndef EV_USE_4HEAP |
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332 | # define EV_USE_4HEAP !EV_MINIMAL |
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333 | #endif |
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334 | |
|
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335 | #ifndef EV_HEAP_CACHE_AT |
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336 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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337 | #endif |
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338 | |
|
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339 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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340 | /* which makes programs even slower. might work on other unices, too. */ |
|
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341 | #if EV_USE_CLOCK_SYSCALL |
|
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342 | # include <syscall.h> |
|
|
343 | # ifdef SYS_clock_gettime |
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344 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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345 | # undef EV_USE_MONOTONIC |
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346 | # define EV_USE_MONOTONIC 1 |
|
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347 | # else |
|
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348 | # undef EV_USE_CLOCK_SYSCALL |
|
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349 | # define EV_USE_CLOCK_SYSCALL 0 |
|
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350 | # endif |
|
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351 | #endif |
|
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352 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
353 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
241 | |
354 | |
242 | #ifndef CLOCK_MONOTONIC |
355 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
356 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
357 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
259 | # include <sys/select.h> |
372 | # include <sys/select.h> |
260 | # endif |
373 | # endif |
261 | #endif |
374 | #endif |
262 | |
375 | |
263 | #if EV_USE_INOTIFY |
376 | #if EV_USE_INOTIFY |
|
|
377 | # include <sys/utsname.h> |
|
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378 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
379 | # include <sys/inotify.h> |
|
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380 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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381 | # ifndef IN_DONT_FOLLOW |
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382 | # undef EV_USE_INOTIFY |
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383 | # define EV_USE_INOTIFY 0 |
|
|
384 | # endif |
265 | #endif |
385 | #endif |
266 | |
386 | |
267 | #if EV_SELECT_IS_WINSOCKET |
387 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
388 | # include <winsock.h> |
269 | #endif |
389 | #endif |
270 | |
390 | |
271 | #if EV_USE_EVENTFD |
391 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
392 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
393 | # include <stdint.h> |
|
|
394 | # ifndef EFD_NONBLOCK |
|
|
395 | # define EFD_NONBLOCK O_NONBLOCK |
|
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396 | # endif |
|
|
397 | # ifndef EFD_CLOEXEC |
|
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398 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
399 | # endif |
274 | # ifdef __cplusplus |
400 | # ifdef __cplusplus |
275 | extern "C" { |
401 | extern "C" { |
276 | # endif |
402 | # endif |
277 | int eventfd (unsigned int initval, int flags); |
403 | int eventfd (unsigned int initval, int flags); |
278 | # ifdef __cplusplus |
404 | # ifdef __cplusplus |
279 | } |
405 | } |
280 | # endif |
406 | # endif |
281 | #endif |
407 | #endif |
282 | |
408 | |
|
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409 | #if EV_USE_SIGNALFD |
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410 | # include <sys/signalfd.h> |
|
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411 | #endif |
|
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412 | |
283 | /**/ |
413 | /**/ |
|
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414 | |
|
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415 | #if EV_VERIFY >= 3 |
|
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416 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
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417 | #else |
|
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418 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
419 | #endif |
284 | |
420 | |
285 | /* |
421 | /* |
286 | * This is used to avoid floating point rounding problems. |
422 | * This is used to avoid floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
423 | * It is added to ev_rt_now when scheduling periodics |
288 | * to ensure progress, time-wise, even when rounding |
424 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
315 | # define inline_speed static noinline |
451 | # define inline_speed static noinline |
316 | #else |
452 | #else |
317 | # define inline_speed static inline |
453 | # define inline_speed static inline |
318 | #endif |
454 | #endif |
319 | |
455 | |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
456 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
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457 | |
|
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458 | #if EV_MINPRI == EV_MAXPRI |
|
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459 | # define ABSPRI(w) (((W)w), 0) |
|
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460 | #else |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
461 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
462 | #endif |
322 | |
463 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
464 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
465 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
466 | |
326 | typedef ev_watcher *W; |
467 | typedef ev_watcher *W; |
327 | typedef ev_watcher_list *WL; |
468 | typedef ev_watcher_list *WL; |
328 | typedef ev_watcher_time *WT; |
469 | typedef ev_watcher_time *WT; |
329 | |
470 | |
330 | #if EV_USE_MONOTONIC |
471 | #define ev_active(w) ((W)(w))->active |
|
|
472 | #define ev_at(w) ((WT)(w))->at |
|
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473 | |
|
|
474 | #if EV_USE_REALTIME |
331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
475 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
332 | /* giving it a reasonably high chance of working on typical architetcures */ |
476 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
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477 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
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478 | #endif |
|
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479 | |
|
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480 | #if EV_USE_MONOTONIC |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
481 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
334 | #endif |
482 | #endif |
335 | |
483 | |
336 | #ifdef _WIN32 |
484 | #ifdef _WIN32 |
337 | # include "ev_win32.c" |
485 | # include "ev_win32.c" |
… | |
… | |
346 | { |
494 | { |
347 | syserr_cb = cb; |
495 | syserr_cb = cb; |
348 | } |
496 | } |
349 | |
497 | |
350 | static void noinline |
498 | static void noinline |
351 | syserr (const char *msg) |
499 | ev_syserr (const char *msg) |
352 | { |
500 | { |
353 | if (!msg) |
501 | if (!msg) |
354 | msg = "(libev) system error"; |
502 | msg = "(libev) system error"; |
355 | |
503 | |
356 | if (syserr_cb) |
504 | if (syserr_cb) |
… | |
… | |
360 | perror (msg); |
508 | perror (msg); |
361 | abort (); |
509 | abort (); |
362 | } |
510 | } |
363 | } |
511 | } |
364 | |
512 | |
|
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513 | static void * |
|
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514 | ev_realloc_emul (void *ptr, long size) |
|
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515 | { |
|
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516 | /* some systems, notably openbsd and darwin, fail to properly |
|
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517 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
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518 | * the single unix specification, so work around them here. |
|
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519 | */ |
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520 | |
|
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521 | if (size) |
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522 | return realloc (ptr, size); |
|
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523 | |
|
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524 | free (ptr); |
|
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525 | return 0; |
|
|
526 | } |
|
|
527 | |
365 | static void *(*alloc)(void *ptr, long size); |
528 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
366 | |
529 | |
367 | void |
530 | void |
368 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
531 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
369 | { |
532 | { |
370 | alloc = cb; |
533 | alloc = cb; |
371 | } |
534 | } |
372 | |
535 | |
373 | inline_speed void * |
536 | inline_speed void * |
374 | ev_realloc (void *ptr, long size) |
537 | ev_realloc (void *ptr, long size) |
375 | { |
538 | { |
376 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
539 | ptr = alloc (ptr, size); |
377 | |
540 | |
378 | if (!ptr && size) |
541 | if (!ptr && size) |
379 | { |
542 | { |
380 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
543 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
381 | abort (); |
544 | abort (); |
… | |
… | |
387 | #define ev_malloc(size) ev_realloc (0, (size)) |
550 | #define ev_malloc(size) ev_realloc (0, (size)) |
388 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
551 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
389 | |
552 | |
390 | /*****************************************************************************/ |
553 | /*****************************************************************************/ |
391 | |
554 | |
|
|
555 | /* set in reify when reification needed */ |
|
|
556 | #define EV_ANFD_REIFY 1 |
|
|
557 | |
|
|
558 | /* file descriptor info structure */ |
392 | typedef struct |
559 | typedef struct |
393 | { |
560 | { |
394 | WL head; |
561 | WL head; |
395 | unsigned char events; |
562 | unsigned char events; /* the events watched for */ |
|
|
563 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
564 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
396 | unsigned char reify; |
565 | unsigned char unused; |
|
|
566 | #if EV_USE_EPOLL |
|
|
567 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
568 | #endif |
397 | #if EV_SELECT_IS_WINSOCKET |
569 | #if EV_SELECT_IS_WINSOCKET |
398 | SOCKET handle; |
570 | SOCKET handle; |
399 | #endif |
571 | #endif |
400 | } ANFD; |
572 | } ANFD; |
401 | |
573 | |
|
|
574 | /* stores the pending event set for a given watcher */ |
402 | typedef struct |
575 | typedef struct |
403 | { |
576 | { |
404 | W w; |
577 | W w; |
405 | int events; |
578 | int events; /* the pending event set for the given watcher */ |
406 | } ANPENDING; |
579 | } ANPENDING; |
407 | |
580 | |
408 | #if EV_USE_INOTIFY |
581 | #if EV_USE_INOTIFY |
|
|
582 | /* hash table entry per inotify-id */ |
409 | typedef struct |
583 | typedef struct |
410 | { |
584 | { |
411 | WL head; |
585 | WL head; |
412 | } ANFS; |
586 | } ANFS; |
|
|
587 | #endif |
|
|
588 | |
|
|
589 | /* Heap Entry */ |
|
|
590 | #if EV_HEAP_CACHE_AT |
|
|
591 | /* a heap element */ |
|
|
592 | typedef struct { |
|
|
593 | ev_tstamp at; |
|
|
594 | WT w; |
|
|
595 | } ANHE; |
|
|
596 | |
|
|
597 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
598 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
599 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
600 | #else |
|
|
601 | /* a heap element */ |
|
|
602 | typedef WT ANHE; |
|
|
603 | |
|
|
604 | #define ANHE_w(he) (he) |
|
|
605 | #define ANHE_at(he) (he)->at |
|
|
606 | #define ANHE_at_cache(he) |
413 | #endif |
607 | #endif |
414 | |
608 | |
415 | #if EV_MULTIPLICITY |
609 | #if EV_MULTIPLICITY |
416 | |
610 | |
417 | struct ev_loop |
611 | struct ev_loop |
… | |
… | |
436 | |
630 | |
437 | static int ev_default_loop_ptr; |
631 | static int ev_default_loop_ptr; |
438 | |
632 | |
439 | #endif |
633 | #endif |
440 | |
634 | |
|
|
635 | #if EV_MINIMAL < 2 |
|
|
636 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
637 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
638 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
639 | #else |
|
|
640 | # define EV_RELEASE_CB (void)0 |
|
|
641 | # define EV_ACQUIRE_CB (void)0 |
|
|
642 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
643 | #endif |
|
|
644 | |
|
|
645 | #define EVUNLOOP_RECURSE 0x80 |
|
|
646 | |
441 | /*****************************************************************************/ |
647 | /*****************************************************************************/ |
442 | |
648 | |
|
|
649 | #ifndef EV_HAVE_EV_TIME |
443 | ev_tstamp |
650 | ev_tstamp |
444 | ev_time (void) |
651 | ev_time (void) |
445 | { |
652 | { |
446 | #if EV_USE_REALTIME |
653 | #if EV_USE_REALTIME |
|
|
654 | if (expect_true (have_realtime)) |
|
|
655 | { |
447 | struct timespec ts; |
656 | struct timespec ts; |
448 | clock_gettime (CLOCK_REALTIME, &ts); |
657 | clock_gettime (CLOCK_REALTIME, &ts); |
449 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
658 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
450 | #else |
659 | } |
|
|
660 | #endif |
|
|
661 | |
451 | struct timeval tv; |
662 | struct timeval tv; |
452 | gettimeofday (&tv, 0); |
663 | gettimeofday (&tv, 0); |
453 | return tv.tv_sec + tv.tv_usec * 1e-6; |
664 | return tv.tv_sec + tv.tv_usec * 1e-6; |
454 | #endif |
|
|
455 | } |
665 | } |
|
|
666 | #endif |
456 | |
667 | |
457 | ev_tstamp inline_size |
668 | inline_size ev_tstamp |
458 | get_clock (void) |
669 | get_clock (void) |
459 | { |
670 | { |
460 | #if EV_USE_MONOTONIC |
671 | #if EV_USE_MONOTONIC |
461 | if (expect_true (have_monotonic)) |
672 | if (expect_true (have_monotonic)) |
462 | { |
673 | { |
… | |
… | |
495 | struct timeval tv; |
706 | struct timeval tv; |
496 | |
707 | |
497 | tv.tv_sec = (time_t)delay; |
708 | tv.tv_sec = (time_t)delay; |
498 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
709 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
499 | |
710 | |
|
|
711 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
712 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
713 | /* by older ones */ |
500 | select (0, 0, 0, 0, &tv); |
714 | select (0, 0, 0, 0, &tv); |
501 | #endif |
715 | #endif |
502 | } |
716 | } |
503 | } |
717 | } |
504 | |
718 | |
505 | /*****************************************************************************/ |
719 | /*****************************************************************************/ |
506 | |
720 | |
507 | int inline_size |
721 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
722 | |
|
|
723 | /* find a suitable new size for the given array, */ |
|
|
724 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
725 | inline_size int |
508 | array_nextsize (int elem, int cur, int cnt) |
726 | array_nextsize (int elem, int cur, int cnt) |
509 | { |
727 | { |
510 | int ncur = cur + 1; |
728 | int ncur = cur + 1; |
511 | |
729 | |
512 | do |
730 | do |
513 | ncur <<= 1; |
731 | ncur <<= 1; |
514 | while (cnt > ncur); |
732 | while (cnt > ncur); |
515 | |
733 | |
516 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
734 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
517 | if (elem * ncur > 4096) |
735 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
518 | { |
736 | { |
519 | ncur *= elem; |
737 | ncur *= elem; |
520 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
738 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
521 | ncur = ncur - sizeof (void *) * 4; |
739 | ncur = ncur - sizeof (void *) * 4; |
522 | ncur /= elem; |
740 | ncur /= elem; |
523 | } |
741 | } |
524 | |
742 | |
525 | return ncur; |
743 | return ncur; |
… | |
… | |
529 | array_realloc (int elem, void *base, int *cur, int cnt) |
747 | array_realloc (int elem, void *base, int *cur, int cnt) |
530 | { |
748 | { |
531 | *cur = array_nextsize (elem, *cur, cnt); |
749 | *cur = array_nextsize (elem, *cur, cnt); |
532 | return ev_realloc (base, elem * *cur); |
750 | return ev_realloc (base, elem * *cur); |
533 | } |
751 | } |
|
|
752 | |
|
|
753 | #define array_init_zero(base,count) \ |
|
|
754 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
534 | |
755 | |
535 | #define array_needsize(type,base,cur,cnt,init) \ |
756 | #define array_needsize(type,base,cur,cnt,init) \ |
536 | if (expect_false ((cnt) > (cur))) \ |
757 | if (expect_false ((cnt) > (cur))) \ |
537 | { \ |
758 | { \ |
538 | int ocur_ = (cur); \ |
759 | int ocur_ = (cur); \ |
… | |
… | |
550 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
771 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
551 | } |
772 | } |
552 | #endif |
773 | #endif |
553 | |
774 | |
554 | #define array_free(stem, idx) \ |
775 | #define array_free(stem, idx) \ |
555 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
776 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
556 | |
777 | |
557 | /*****************************************************************************/ |
778 | /*****************************************************************************/ |
|
|
779 | |
|
|
780 | /* dummy callback for pending events */ |
|
|
781 | static void noinline |
|
|
782 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
783 | { |
|
|
784 | } |
558 | |
785 | |
559 | void noinline |
786 | void noinline |
560 | ev_feed_event (EV_P_ void *w, int revents) |
787 | ev_feed_event (EV_P_ void *w, int revents) |
561 | { |
788 | { |
562 | W w_ = (W)w; |
789 | W w_ = (W)w; |
… | |
… | |
571 | pendings [pri][w_->pending - 1].w = w_; |
798 | pendings [pri][w_->pending - 1].w = w_; |
572 | pendings [pri][w_->pending - 1].events = revents; |
799 | pendings [pri][w_->pending - 1].events = revents; |
573 | } |
800 | } |
574 | } |
801 | } |
575 | |
802 | |
576 | void inline_speed |
803 | inline_speed void |
|
|
804 | feed_reverse (EV_P_ W w) |
|
|
805 | { |
|
|
806 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
807 | rfeeds [rfeedcnt++] = w; |
|
|
808 | } |
|
|
809 | |
|
|
810 | inline_size void |
|
|
811 | feed_reverse_done (EV_P_ int revents) |
|
|
812 | { |
|
|
813 | do |
|
|
814 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
815 | while (rfeedcnt); |
|
|
816 | } |
|
|
817 | |
|
|
818 | inline_speed void |
577 | queue_events (EV_P_ W *events, int eventcnt, int type) |
819 | queue_events (EV_P_ W *events, int eventcnt, int type) |
578 | { |
820 | { |
579 | int i; |
821 | int i; |
580 | |
822 | |
581 | for (i = 0; i < eventcnt; ++i) |
823 | for (i = 0; i < eventcnt; ++i) |
582 | ev_feed_event (EV_A_ events [i], type); |
824 | ev_feed_event (EV_A_ events [i], type); |
583 | } |
825 | } |
584 | |
826 | |
585 | /*****************************************************************************/ |
827 | /*****************************************************************************/ |
586 | |
828 | |
587 | void inline_size |
829 | inline_speed void |
588 | anfds_init (ANFD *base, int count) |
|
|
589 | { |
|
|
590 | while (count--) |
|
|
591 | { |
|
|
592 | base->head = 0; |
|
|
593 | base->events = EV_NONE; |
|
|
594 | base->reify = 0; |
|
|
595 | |
|
|
596 | ++base; |
|
|
597 | } |
|
|
598 | } |
|
|
599 | |
|
|
600 | void inline_speed |
|
|
601 | fd_event (EV_P_ int fd, int revents) |
830 | fd_event_nc (EV_P_ int fd, int revents) |
602 | { |
831 | { |
603 | ANFD *anfd = anfds + fd; |
832 | ANFD *anfd = anfds + fd; |
604 | ev_io *w; |
833 | ev_io *w; |
605 | |
834 | |
606 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
835 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
610 | if (ev) |
839 | if (ev) |
611 | ev_feed_event (EV_A_ (W)w, ev); |
840 | ev_feed_event (EV_A_ (W)w, ev); |
612 | } |
841 | } |
613 | } |
842 | } |
614 | |
843 | |
|
|
844 | /* do not submit kernel events for fds that have reify set */ |
|
|
845 | /* because that means they changed while we were polling for new events */ |
|
|
846 | inline_speed void |
|
|
847 | fd_event (EV_P_ int fd, int revents) |
|
|
848 | { |
|
|
849 | ANFD *anfd = anfds + fd; |
|
|
850 | |
|
|
851 | if (expect_true (!anfd->reify)) |
|
|
852 | fd_event_nc (EV_A_ fd, revents); |
|
|
853 | } |
|
|
854 | |
615 | void |
855 | void |
616 | ev_feed_fd_event (EV_P_ int fd, int revents) |
856 | ev_feed_fd_event (EV_P_ int fd, int revents) |
617 | { |
857 | { |
618 | if (fd >= 0 && fd < anfdmax) |
858 | if (fd >= 0 && fd < anfdmax) |
619 | fd_event (EV_A_ fd, revents); |
859 | fd_event_nc (EV_A_ fd, revents); |
620 | } |
860 | } |
621 | |
861 | |
622 | void inline_size |
862 | /* make sure the external fd watch events are in-sync */ |
|
|
863 | /* with the kernel/libev internal state */ |
|
|
864 | inline_size void |
623 | fd_reify (EV_P) |
865 | fd_reify (EV_P) |
624 | { |
866 | { |
625 | int i; |
867 | int i; |
626 | |
868 | |
627 | for (i = 0; i < fdchangecnt; ++i) |
869 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
636 | events |= (unsigned char)w->events; |
878 | events |= (unsigned char)w->events; |
637 | |
879 | |
638 | #if EV_SELECT_IS_WINSOCKET |
880 | #if EV_SELECT_IS_WINSOCKET |
639 | if (events) |
881 | if (events) |
640 | { |
882 | { |
641 | unsigned long argp; |
883 | unsigned long arg; |
642 | #ifdef EV_FD_TO_WIN32_HANDLE |
884 | #ifdef EV_FD_TO_WIN32_HANDLE |
643 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
885 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
644 | #else |
886 | #else |
645 | anfd->handle = _get_osfhandle (fd); |
887 | anfd->handle = _get_osfhandle (fd); |
646 | #endif |
888 | #endif |
647 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
889 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
648 | } |
890 | } |
649 | #endif |
891 | #endif |
650 | |
892 | |
651 | { |
893 | { |
652 | unsigned char o_events = anfd->events; |
894 | unsigned char o_events = anfd->events; |
653 | unsigned char o_reify = anfd->reify; |
895 | unsigned char o_reify = anfd->reify; |
654 | |
896 | |
655 | anfd->reify = 0; |
897 | anfd->reify = 0; |
656 | anfd->events = events; |
898 | anfd->events = events; |
657 | |
899 | |
658 | if (o_events != events || o_reify & EV_IOFDSET) |
900 | if (o_events != events || o_reify & EV__IOFDSET) |
659 | backend_modify (EV_A_ fd, o_events, events); |
901 | backend_modify (EV_A_ fd, o_events, events); |
660 | } |
902 | } |
661 | } |
903 | } |
662 | |
904 | |
663 | fdchangecnt = 0; |
905 | fdchangecnt = 0; |
664 | } |
906 | } |
665 | |
907 | |
666 | void inline_size |
908 | /* something about the given fd changed */ |
|
|
909 | inline_size void |
667 | fd_change (EV_P_ int fd, int flags) |
910 | fd_change (EV_P_ int fd, int flags) |
668 | { |
911 | { |
669 | unsigned char reify = anfds [fd].reify; |
912 | unsigned char reify = anfds [fd].reify; |
670 | anfds [fd].reify |= flags; |
913 | anfds [fd].reify |= flags; |
671 | |
914 | |
… | |
… | |
675 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
918 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
676 | fdchanges [fdchangecnt - 1] = fd; |
919 | fdchanges [fdchangecnt - 1] = fd; |
677 | } |
920 | } |
678 | } |
921 | } |
679 | |
922 | |
680 | void inline_speed |
923 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
924 | inline_speed void |
681 | fd_kill (EV_P_ int fd) |
925 | fd_kill (EV_P_ int fd) |
682 | { |
926 | { |
683 | ev_io *w; |
927 | ev_io *w; |
684 | |
928 | |
685 | while ((w = (ev_io *)anfds [fd].head)) |
929 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
687 | ev_io_stop (EV_A_ w); |
931 | ev_io_stop (EV_A_ w); |
688 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
932 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
689 | } |
933 | } |
690 | } |
934 | } |
691 | |
935 | |
692 | int inline_size |
936 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
937 | inline_size int |
693 | fd_valid (int fd) |
938 | fd_valid (int fd) |
694 | { |
939 | { |
695 | #ifdef _WIN32 |
940 | #ifdef _WIN32 |
696 | return _get_osfhandle (fd) != -1; |
941 | return _get_osfhandle (fd) != -1; |
697 | #else |
942 | #else |
… | |
… | |
705 | { |
950 | { |
706 | int fd; |
951 | int fd; |
707 | |
952 | |
708 | for (fd = 0; fd < anfdmax; ++fd) |
953 | for (fd = 0; fd < anfdmax; ++fd) |
709 | if (anfds [fd].events) |
954 | if (anfds [fd].events) |
710 | if (!fd_valid (fd) == -1 && errno == EBADF) |
955 | if (!fd_valid (fd) && errno == EBADF) |
711 | fd_kill (EV_A_ fd); |
956 | fd_kill (EV_A_ fd); |
712 | } |
957 | } |
713 | |
958 | |
714 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
959 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
715 | static void noinline |
960 | static void noinline |
… | |
… | |
733 | |
978 | |
734 | for (fd = 0; fd < anfdmax; ++fd) |
979 | for (fd = 0; fd < anfdmax; ++fd) |
735 | if (anfds [fd].events) |
980 | if (anfds [fd].events) |
736 | { |
981 | { |
737 | anfds [fd].events = 0; |
982 | anfds [fd].events = 0; |
|
|
983 | anfds [fd].emask = 0; |
738 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
984 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
739 | } |
985 | } |
740 | } |
986 | } |
741 | |
987 | |
742 | /*****************************************************************************/ |
988 | /*****************************************************************************/ |
743 | |
989 | |
744 | void inline_speed |
990 | /* |
745 | upheap (WT *heap, int k) |
991 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
746 | { |
992 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
747 | WT w = heap [k]; |
993 | * the branching factor of the d-tree. |
|
|
994 | */ |
748 | |
995 | |
749 | while (k) |
996 | /* |
750 | { |
997 | * at the moment we allow libev the luxury of two heaps, |
751 | int p = (k - 1) >> 1; |
998 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
999 | * which is more cache-efficient. |
|
|
1000 | * the difference is about 5% with 50000+ watchers. |
|
|
1001 | */ |
|
|
1002 | #if EV_USE_4HEAP |
752 | |
1003 | |
753 | if (heap [p]->at <= w->at) |
1004 | #define DHEAP 4 |
|
|
1005 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1006 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1007 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1008 | |
|
|
1009 | /* away from the root */ |
|
|
1010 | inline_speed void |
|
|
1011 | downheap (ANHE *heap, int N, int k) |
|
|
1012 | { |
|
|
1013 | ANHE he = heap [k]; |
|
|
1014 | ANHE *E = heap + N + HEAP0; |
|
|
1015 | |
|
|
1016 | for (;;) |
|
|
1017 | { |
|
|
1018 | ev_tstamp minat; |
|
|
1019 | ANHE *minpos; |
|
|
1020 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1021 | |
|
|
1022 | /* find minimum child */ |
|
|
1023 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1024 | { |
|
|
1025 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1026 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1027 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1028 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1029 | } |
|
|
1030 | else if (pos < E) |
|
|
1031 | { |
|
|
1032 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1033 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1034 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1035 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1036 | } |
|
|
1037 | else |
754 | break; |
1038 | break; |
755 | |
1039 | |
|
|
1040 | if (ANHE_at (he) <= minat) |
|
|
1041 | break; |
|
|
1042 | |
|
|
1043 | heap [k] = *minpos; |
|
|
1044 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1045 | |
|
|
1046 | k = minpos - heap; |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | heap [k] = he; |
|
|
1050 | ev_active (ANHE_w (he)) = k; |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | #else /* 4HEAP */ |
|
|
1054 | |
|
|
1055 | #define HEAP0 1 |
|
|
1056 | #define HPARENT(k) ((k) >> 1) |
|
|
1057 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1058 | |
|
|
1059 | /* away from the root */ |
|
|
1060 | inline_speed void |
|
|
1061 | downheap (ANHE *heap, int N, int k) |
|
|
1062 | { |
|
|
1063 | ANHE he = heap [k]; |
|
|
1064 | |
|
|
1065 | for (;;) |
|
|
1066 | { |
|
|
1067 | int c = k << 1; |
|
|
1068 | |
|
|
1069 | if (c > N + HEAP0 - 1) |
|
|
1070 | break; |
|
|
1071 | |
|
|
1072 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1073 | ? 1 : 0; |
|
|
1074 | |
|
|
1075 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1076 | break; |
|
|
1077 | |
|
|
1078 | heap [k] = heap [c]; |
|
|
1079 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1080 | |
|
|
1081 | k = c; |
|
|
1082 | } |
|
|
1083 | |
|
|
1084 | heap [k] = he; |
|
|
1085 | ev_active (ANHE_w (he)) = k; |
|
|
1086 | } |
|
|
1087 | #endif |
|
|
1088 | |
|
|
1089 | /* towards the root */ |
|
|
1090 | inline_speed void |
|
|
1091 | upheap (ANHE *heap, int k) |
|
|
1092 | { |
|
|
1093 | ANHE he = heap [k]; |
|
|
1094 | |
|
|
1095 | for (;;) |
|
|
1096 | { |
|
|
1097 | int p = HPARENT (k); |
|
|
1098 | |
|
|
1099 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1100 | break; |
|
|
1101 | |
756 | heap [k] = heap [p]; |
1102 | heap [k] = heap [p]; |
757 | ((W)heap [k])->active = k + 1; |
1103 | ev_active (ANHE_w (heap [k])) = k; |
758 | k = p; |
1104 | k = p; |
759 | } |
1105 | } |
760 | |
1106 | |
761 | heap [k] = w; |
1107 | heap [k] = he; |
762 | ((W)heap [k])->active = k + 1; |
1108 | ev_active (ANHE_w (he)) = k; |
763 | } |
1109 | } |
764 | |
1110 | |
765 | void inline_speed |
1111 | /* move an element suitably so it is in a correct place */ |
766 | downheap (WT *heap, int N, int k) |
1112 | inline_size void |
767 | { |
|
|
768 | WT w = heap [k]; |
|
|
769 | |
|
|
770 | for (;;) |
|
|
771 | { |
|
|
772 | int c = (k << 1) + 1; |
|
|
773 | |
|
|
774 | if (c >= N) |
|
|
775 | break; |
|
|
776 | |
|
|
777 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
778 | ? 1 : 0; |
|
|
779 | |
|
|
780 | if (w->at <= heap [c]->at) |
|
|
781 | break; |
|
|
782 | |
|
|
783 | heap [k] = heap [c]; |
|
|
784 | ((W)heap [k])->active = k + 1; |
|
|
785 | |
|
|
786 | k = c; |
|
|
787 | } |
|
|
788 | |
|
|
789 | heap [k] = w; |
|
|
790 | ((W)heap [k])->active = k + 1; |
|
|
791 | } |
|
|
792 | |
|
|
793 | void inline_size |
|
|
794 | adjustheap (WT *heap, int N, int k) |
1113 | adjustheap (ANHE *heap, int N, int k) |
795 | { |
1114 | { |
|
|
1115 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
796 | upheap (heap, k); |
1116 | upheap (heap, k); |
|
|
1117 | else |
797 | downheap (heap, N, k); |
1118 | downheap (heap, N, k); |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1122 | inline_size void |
|
|
1123 | reheap (ANHE *heap, int N) |
|
|
1124 | { |
|
|
1125 | int i; |
|
|
1126 | |
|
|
1127 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1128 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1129 | for (i = 0; i < N; ++i) |
|
|
1130 | upheap (heap, i + HEAP0); |
798 | } |
1131 | } |
799 | |
1132 | |
800 | /*****************************************************************************/ |
1133 | /*****************************************************************************/ |
801 | |
1134 | |
|
|
1135 | /* associate signal watchers to a signal signal */ |
802 | typedef struct |
1136 | typedef struct |
803 | { |
1137 | { |
804 | WL head; |
1138 | WL head; |
805 | EV_ATOMIC_T gotsig; |
1139 | EV_ATOMIC_T gotsig; |
806 | } ANSIG; |
1140 | } ANSIG; |
… | |
… | |
808 | static ANSIG *signals; |
1142 | static ANSIG *signals; |
809 | static int signalmax; |
1143 | static int signalmax; |
810 | |
1144 | |
811 | static EV_ATOMIC_T gotsig; |
1145 | static EV_ATOMIC_T gotsig; |
812 | |
1146 | |
813 | void inline_size |
|
|
814 | signals_init (ANSIG *base, int count) |
|
|
815 | { |
|
|
816 | while (count--) |
|
|
817 | { |
|
|
818 | base->head = 0; |
|
|
819 | base->gotsig = 0; |
|
|
820 | |
|
|
821 | ++base; |
|
|
822 | } |
|
|
823 | } |
|
|
824 | |
|
|
825 | /*****************************************************************************/ |
1147 | /*****************************************************************************/ |
826 | |
1148 | |
827 | void inline_speed |
1149 | /* used to prepare libev internal fd's */ |
|
|
1150 | /* this is not fork-safe */ |
|
|
1151 | inline_speed void |
828 | fd_intern (int fd) |
1152 | fd_intern (int fd) |
829 | { |
1153 | { |
830 | #ifdef _WIN32 |
1154 | #ifdef _WIN32 |
831 | int arg = 1; |
1155 | unsigned long arg = 1; |
832 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1156 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
833 | #else |
1157 | #else |
834 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1158 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
835 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1159 | fcntl (fd, F_SETFL, O_NONBLOCK); |
836 | #endif |
1160 | #endif |
837 | } |
1161 | } |
838 | |
1162 | |
839 | static void noinline |
1163 | static void noinline |
840 | evpipe_init (EV_P) |
1164 | evpipe_init (EV_P) |
841 | { |
1165 | { |
842 | if (!ev_is_active (&pipeev)) |
1166 | if (!ev_is_active (&pipe_w)) |
843 | { |
1167 | { |
844 | #if EV_USE_EVENTFD |
1168 | #if EV_USE_EVENTFD |
|
|
1169 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1170 | if (evfd < 0 && errno == EINVAL) |
845 | if ((evfd = eventfd (0, 0)) >= 0) |
1171 | evfd = eventfd (0, 0); |
|
|
1172 | |
|
|
1173 | if (evfd >= 0) |
846 | { |
1174 | { |
847 | evpipe [0] = -1; |
1175 | evpipe [0] = -1; |
848 | fd_intern (evfd); |
1176 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
849 | ev_io_set (&pipeev, evfd, EV_READ); |
1177 | ev_io_set (&pipe_w, evfd, EV_READ); |
850 | } |
1178 | } |
851 | else |
1179 | else |
852 | #endif |
1180 | #endif |
853 | { |
1181 | { |
854 | while (pipe (evpipe)) |
1182 | while (pipe (evpipe)) |
855 | syserr ("(libev) error creating signal/async pipe"); |
1183 | ev_syserr ("(libev) error creating signal/async pipe"); |
856 | |
1184 | |
857 | fd_intern (evpipe [0]); |
1185 | fd_intern (evpipe [0]); |
858 | fd_intern (evpipe [1]); |
1186 | fd_intern (evpipe [1]); |
859 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1187 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
860 | } |
1188 | } |
861 | |
1189 | |
862 | ev_io_start (EV_A_ &pipeev); |
1190 | ev_io_start (EV_A_ &pipe_w); |
863 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1191 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
864 | } |
1192 | } |
865 | } |
1193 | } |
866 | |
1194 | |
867 | void inline_size |
1195 | inline_size void |
868 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1196 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
869 | { |
1197 | { |
870 | if (!*flag) |
1198 | if (!*flag) |
871 | { |
1199 | { |
872 | int old_errno = errno; /* save errno because write might clobber it */ |
1200 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
885 | |
1213 | |
886 | errno = old_errno; |
1214 | errno = old_errno; |
887 | } |
1215 | } |
888 | } |
1216 | } |
889 | |
1217 | |
|
|
1218 | /* called whenever the libev signal pipe */ |
|
|
1219 | /* got some events (signal, async) */ |
890 | static void |
1220 | static void |
891 | pipecb (EV_P_ ev_io *iow, int revents) |
1221 | pipecb (EV_P_ ev_io *iow, int revents) |
892 | { |
1222 | { |
893 | #if EV_USE_EVENTFD |
1223 | #if EV_USE_EVENTFD |
894 | if (evfd >= 0) |
1224 | if (evfd >= 0) |
895 | { |
1225 | { |
896 | uint64_t counter = 1; |
1226 | uint64_t counter; |
897 | read (evfd, &counter, sizeof (uint64_t)); |
1227 | read (evfd, &counter, sizeof (uint64_t)); |
898 | } |
1228 | } |
899 | else |
1229 | else |
900 | #endif |
1230 | #endif |
901 | { |
1231 | { |
… | |
… | |
950 | ev_feed_signal_event (EV_P_ int signum) |
1280 | ev_feed_signal_event (EV_P_ int signum) |
951 | { |
1281 | { |
952 | WL w; |
1282 | WL w; |
953 | |
1283 | |
954 | #if EV_MULTIPLICITY |
1284 | #if EV_MULTIPLICITY |
955 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1285 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
956 | #endif |
1286 | #endif |
957 | |
1287 | |
958 | --signum; |
1288 | --signum; |
959 | |
1289 | |
960 | if (signum < 0 || signum >= signalmax) |
1290 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
964 | |
1294 | |
965 | for (w = signals [signum].head; w; w = w->next) |
1295 | for (w = signals [signum].head; w; w = w->next) |
966 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1296 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
967 | } |
1297 | } |
968 | |
1298 | |
|
|
1299 | #if EV_USE_SIGNALFD |
|
|
1300 | static void |
|
|
1301 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1302 | { |
|
|
1303 | struct signalfd_siginfo si[4], *sip; |
|
|
1304 | |
|
|
1305 | for (;;) |
|
|
1306 | { |
|
|
1307 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1308 | |
|
|
1309 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1310 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1311 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1312 | |
|
|
1313 | if (res < (ssize_t)sizeof (si)) |
|
|
1314 | break; |
|
|
1315 | } |
|
|
1316 | } |
|
|
1317 | #endif |
|
|
1318 | |
969 | /*****************************************************************************/ |
1319 | /*****************************************************************************/ |
970 | |
1320 | |
971 | static WL childs [EV_PID_HASHSIZE]; |
1321 | static WL childs [EV_PID_HASHSIZE]; |
972 | |
1322 | |
973 | #ifndef _WIN32 |
1323 | #ifndef _WIN32 |
… | |
… | |
976 | |
1326 | |
977 | #ifndef WIFCONTINUED |
1327 | #ifndef WIFCONTINUED |
978 | # define WIFCONTINUED(status) 0 |
1328 | # define WIFCONTINUED(status) 0 |
979 | #endif |
1329 | #endif |
980 | |
1330 | |
981 | void inline_speed |
1331 | /* handle a single child status event */ |
|
|
1332 | inline_speed void |
982 | child_reap (EV_P_ int chain, int pid, int status) |
1333 | child_reap (EV_P_ int chain, int pid, int status) |
983 | { |
1334 | { |
984 | ev_child *w; |
1335 | ev_child *w; |
985 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1336 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
986 | |
1337 | |
… | |
… | |
999 | |
1350 | |
1000 | #ifndef WCONTINUED |
1351 | #ifndef WCONTINUED |
1001 | # define WCONTINUED 0 |
1352 | # define WCONTINUED 0 |
1002 | #endif |
1353 | #endif |
1003 | |
1354 | |
|
|
1355 | /* called on sigchld etc., calls waitpid */ |
1004 | static void |
1356 | static void |
1005 | childcb (EV_P_ ev_signal *sw, int revents) |
1357 | childcb (EV_P_ ev_signal *sw, int revents) |
1006 | { |
1358 | { |
1007 | int pid, status; |
1359 | int pid, status; |
1008 | |
1360 | |
… | |
… | |
1089 | /* kqueue is borked on everything but netbsd apparently */ |
1441 | /* kqueue is borked on everything but netbsd apparently */ |
1090 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1442 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1091 | flags &= ~EVBACKEND_KQUEUE; |
1443 | flags &= ~EVBACKEND_KQUEUE; |
1092 | #endif |
1444 | #endif |
1093 | #ifdef __APPLE__ |
1445 | #ifdef __APPLE__ |
1094 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1446 | /* only select works correctly on that "unix-certified" platform */ |
1095 | flags &= ~EVBACKEND_POLL; |
1447 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1448 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1096 | #endif |
1449 | #endif |
1097 | |
1450 | |
1098 | return flags; |
1451 | return flags; |
1099 | } |
1452 | } |
1100 | |
1453 | |
… | |
… | |
1114 | ev_backend (EV_P) |
1467 | ev_backend (EV_P) |
1115 | { |
1468 | { |
1116 | return backend; |
1469 | return backend; |
1117 | } |
1470 | } |
1118 | |
1471 | |
|
|
1472 | #if EV_MINIMAL < 2 |
1119 | unsigned int |
1473 | unsigned int |
1120 | ev_loop_count (EV_P) |
1474 | ev_loop_count (EV_P) |
1121 | { |
1475 | { |
1122 | return loop_count; |
1476 | return loop_count; |
1123 | } |
1477 | } |
1124 | |
1478 | |
|
|
1479 | unsigned int |
|
|
1480 | ev_loop_depth (EV_P) |
|
|
1481 | { |
|
|
1482 | return loop_depth; |
|
|
1483 | } |
|
|
1484 | |
1125 | void |
1485 | void |
1126 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1486 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1127 | { |
1487 | { |
1128 | io_blocktime = interval; |
1488 | io_blocktime = interval; |
1129 | } |
1489 | } |
… | |
… | |
1132 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1492 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1133 | { |
1493 | { |
1134 | timeout_blocktime = interval; |
1494 | timeout_blocktime = interval; |
1135 | } |
1495 | } |
1136 | |
1496 | |
|
|
1497 | void |
|
|
1498 | ev_set_userdata (EV_P_ void *data) |
|
|
1499 | { |
|
|
1500 | userdata = data; |
|
|
1501 | } |
|
|
1502 | |
|
|
1503 | void * |
|
|
1504 | ev_userdata (EV_P) |
|
|
1505 | { |
|
|
1506 | return userdata; |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1510 | { |
|
|
1511 | invoke_cb = invoke_pending_cb; |
|
|
1512 | } |
|
|
1513 | |
|
|
1514 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1515 | { |
|
|
1516 | release_cb = release; |
|
|
1517 | acquire_cb = acquire; |
|
|
1518 | } |
|
|
1519 | #endif |
|
|
1520 | |
|
|
1521 | /* initialise a loop structure, must be zero-initialised */ |
1137 | static void noinline |
1522 | static void noinline |
1138 | loop_init (EV_P_ unsigned int flags) |
1523 | loop_init (EV_P_ unsigned int flags) |
1139 | { |
1524 | { |
1140 | if (!backend) |
1525 | if (!backend) |
1141 | { |
1526 | { |
|
|
1527 | #if EV_USE_REALTIME |
|
|
1528 | if (!have_realtime) |
|
|
1529 | { |
|
|
1530 | struct timespec ts; |
|
|
1531 | |
|
|
1532 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1533 | have_realtime = 1; |
|
|
1534 | } |
|
|
1535 | #endif |
|
|
1536 | |
1142 | #if EV_USE_MONOTONIC |
1537 | #if EV_USE_MONOTONIC |
|
|
1538 | if (!have_monotonic) |
1143 | { |
1539 | { |
1144 | struct timespec ts; |
1540 | struct timespec ts; |
|
|
1541 | |
1145 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1542 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1146 | have_monotonic = 1; |
1543 | have_monotonic = 1; |
1147 | } |
1544 | } |
1148 | #endif |
1545 | #endif |
1149 | |
1546 | |
1150 | ev_rt_now = ev_time (); |
1547 | ev_rt_now = ev_time (); |
1151 | mn_now = get_clock (); |
1548 | mn_now = get_clock (); |
1152 | now_floor = mn_now; |
1549 | now_floor = mn_now; |
1153 | rtmn_diff = ev_rt_now - mn_now; |
1550 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1551 | #if EV_MINIMAL < 2 |
|
|
1552 | invoke_cb = ev_invoke_pending; |
|
|
1553 | #endif |
1154 | |
1554 | |
1155 | io_blocktime = 0.; |
1555 | io_blocktime = 0.; |
1156 | timeout_blocktime = 0.; |
1556 | timeout_blocktime = 0.; |
1157 | backend = 0; |
1557 | backend = 0; |
1158 | backend_fd = -1; |
1558 | backend_fd = -1; |
1159 | gotasync = 0; |
1559 | gotasync = 0; |
1160 | #if EV_USE_INOTIFY |
1560 | #if EV_USE_INOTIFY |
1161 | fs_fd = -2; |
1561 | fs_fd = -2; |
1162 | #endif |
1562 | #endif |
|
|
1563 | #if EV_USE_SIGNALFD |
|
|
1564 | sigfd = -2; |
|
|
1565 | #endif |
1163 | |
1566 | |
1164 | /* pid check not overridable via env */ |
1567 | /* pid check not overridable via env */ |
1165 | #ifndef _WIN32 |
1568 | #ifndef _WIN32 |
1166 | if (flags & EVFLAG_FORKCHECK) |
1569 | if (flags & EVFLAG_FORKCHECK) |
1167 | curpid = getpid (); |
1570 | curpid = getpid (); |
… | |
… | |
1170 | if (!(flags & EVFLAG_NOENV) |
1573 | if (!(flags & EVFLAG_NOENV) |
1171 | && !enable_secure () |
1574 | && !enable_secure () |
1172 | && getenv ("LIBEV_FLAGS")) |
1575 | && getenv ("LIBEV_FLAGS")) |
1173 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1576 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1174 | |
1577 | |
1175 | if (!(flags & 0x0000ffffUL)) |
1578 | if (!(flags & 0x0000ffffU)) |
1176 | flags |= ev_recommended_backends (); |
1579 | flags |= ev_recommended_backends (); |
1177 | |
1580 | |
1178 | #if EV_USE_PORT |
1581 | #if EV_USE_PORT |
1179 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1582 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1180 | #endif |
1583 | #endif |
… | |
… | |
1189 | #endif |
1592 | #endif |
1190 | #if EV_USE_SELECT |
1593 | #if EV_USE_SELECT |
1191 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1594 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1192 | #endif |
1595 | #endif |
1193 | |
1596 | |
|
|
1597 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1598 | |
1194 | ev_init (&pipeev, pipecb); |
1599 | ev_init (&pipe_w, pipecb); |
1195 | ev_set_priority (&pipeev, EV_MAXPRI); |
1600 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1196 | } |
1601 | } |
1197 | } |
1602 | } |
1198 | |
1603 | |
|
|
1604 | /* free up a loop structure */ |
1199 | static void noinline |
1605 | static void noinline |
1200 | loop_destroy (EV_P) |
1606 | loop_destroy (EV_P) |
1201 | { |
1607 | { |
1202 | int i; |
1608 | int i; |
1203 | |
1609 | |
1204 | if (ev_is_active (&pipeev)) |
1610 | if (ev_is_active (&pipe_w)) |
1205 | { |
1611 | { |
1206 | ev_ref (EV_A); /* signal watcher */ |
1612 | /*ev_ref (EV_A);*/ |
1207 | ev_io_stop (EV_A_ &pipeev); |
1613 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1208 | |
1614 | |
1209 | #if EV_USE_EVENTFD |
1615 | #if EV_USE_EVENTFD |
1210 | if (evfd >= 0) |
1616 | if (evfd >= 0) |
1211 | close (evfd); |
1617 | close (evfd); |
1212 | #endif |
1618 | #endif |
… | |
… | |
1216 | close (evpipe [0]); |
1622 | close (evpipe [0]); |
1217 | close (evpipe [1]); |
1623 | close (evpipe [1]); |
1218 | } |
1624 | } |
1219 | } |
1625 | } |
1220 | |
1626 | |
|
|
1627 | #if EV_USE_SIGNALFD |
|
|
1628 | if (ev_is_active (&sigfd_w)) |
|
|
1629 | { |
|
|
1630 | /*ev_ref (EV_A);*/ |
|
|
1631 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1632 | |
|
|
1633 | close (sigfd); |
|
|
1634 | } |
|
|
1635 | #endif |
|
|
1636 | |
1221 | #if EV_USE_INOTIFY |
1637 | #if EV_USE_INOTIFY |
1222 | if (fs_fd >= 0) |
1638 | if (fs_fd >= 0) |
1223 | close (fs_fd); |
1639 | close (fs_fd); |
1224 | #endif |
1640 | #endif |
1225 | |
1641 | |
… | |
… | |
1248 | #if EV_IDLE_ENABLE |
1664 | #if EV_IDLE_ENABLE |
1249 | array_free (idle, [i]); |
1665 | array_free (idle, [i]); |
1250 | #endif |
1666 | #endif |
1251 | } |
1667 | } |
1252 | |
1668 | |
1253 | ev_free (anfds); anfdmax = 0; |
1669 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1254 | |
1670 | |
1255 | /* have to use the microsoft-never-gets-it-right macro */ |
1671 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1672 | array_free (rfeed, EMPTY); |
1256 | array_free (fdchange, EMPTY); |
1673 | array_free (fdchange, EMPTY); |
1257 | array_free (timer, EMPTY); |
1674 | array_free (timer, EMPTY); |
1258 | #if EV_PERIODIC_ENABLE |
1675 | #if EV_PERIODIC_ENABLE |
1259 | array_free (periodic, EMPTY); |
1676 | array_free (periodic, EMPTY); |
1260 | #endif |
1677 | #endif |
… | |
… | |
1268 | #endif |
1685 | #endif |
1269 | |
1686 | |
1270 | backend = 0; |
1687 | backend = 0; |
1271 | } |
1688 | } |
1272 | |
1689 | |
|
|
1690 | #if EV_USE_INOTIFY |
1273 | void inline_size infy_fork (EV_P); |
1691 | inline_size void infy_fork (EV_P); |
|
|
1692 | #endif |
1274 | |
1693 | |
1275 | void inline_size |
1694 | inline_size void |
1276 | loop_fork (EV_P) |
1695 | loop_fork (EV_P) |
1277 | { |
1696 | { |
1278 | #if EV_USE_PORT |
1697 | #if EV_USE_PORT |
1279 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1698 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1280 | #endif |
1699 | #endif |
… | |
… | |
1286 | #endif |
1705 | #endif |
1287 | #if EV_USE_INOTIFY |
1706 | #if EV_USE_INOTIFY |
1288 | infy_fork (EV_A); |
1707 | infy_fork (EV_A); |
1289 | #endif |
1708 | #endif |
1290 | |
1709 | |
1291 | if (ev_is_active (&pipeev)) |
1710 | if (ev_is_active (&pipe_w)) |
1292 | { |
1711 | { |
1293 | /* this "locks" the handlers against writing to the pipe */ |
1712 | /* this "locks" the handlers against writing to the pipe */ |
1294 | /* while we modify the fd vars */ |
1713 | /* while we modify the fd vars */ |
1295 | gotsig = 1; |
1714 | gotsig = 1; |
1296 | #if EV_ASYNC_ENABLE |
1715 | #if EV_ASYNC_ENABLE |
1297 | gotasync = 1; |
1716 | gotasync = 1; |
1298 | #endif |
1717 | #endif |
1299 | |
1718 | |
1300 | ev_ref (EV_A); |
1719 | ev_ref (EV_A); |
1301 | ev_io_stop (EV_A_ &pipeev); |
1720 | ev_io_stop (EV_A_ &pipe_w); |
1302 | |
1721 | |
1303 | #if EV_USE_EVENTFD |
1722 | #if EV_USE_EVENTFD |
1304 | if (evfd >= 0) |
1723 | if (evfd >= 0) |
1305 | close (evfd); |
1724 | close (evfd); |
1306 | #endif |
1725 | #endif |
… | |
… | |
1311 | close (evpipe [1]); |
1730 | close (evpipe [1]); |
1312 | } |
1731 | } |
1313 | |
1732 | |
1314 | evpipe_init (EV_A); |
1733 | evpipe_init (EV_A); |
1315 | /* now iterate over everything, in case we missed something */ |
1734 | /* now iterate over everything, in case we missed something */ |
1316 | pipecb (EV_A_ &pipeev, EV_READ); |
1735 | pipecb (EV_A_ &pipe_w, EV_READ); |
1317 | } |
1736 | } |
1318 | |
1737 | |
1319 | postfork = 0; |
1738 | postfork = 0; |
1320 | } |
1739 | } |
1321 | |
1740 | |
1322 | #if EV_MULTIPLICITY |
1741 | #if EV_MULTIPLICITY |
|
|
1742 | |
1323 | struct ev_loop * |
1743 | struct ev_loop * |
1324 | ev_loop_new (unsigned int flags) |
1744 | ev_loop_new (unsigned int flags) |
1325 | { |
1745 | { |
1326 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1746 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1327 | |
1747 | |
1328 | memset (loop, 0, sizeof (struct ev_loop)); |
1748 | memset (loop, 0, sizeof (struct ev_loop)); |
1329 | |
|
|
1330 | loop_init (EV_A_ flags); |
1749 | loop_init (EV_A_ flags); |
1331 | |
1750 | |
1332 | if (ev_backend (EV_A)) |
1751 | if (ev_backend (EV_A)) |
1333 | return loop; |
1752 | return loop; |
1334 | |
1753 | |
… | |
… | |
1345 | void |
1764 | void |
1346 | ev_loop_fork (EV_P) |
1765 | ev_loop_fork (EV_P) |
1347 | { |
1766 | { |
1348 | postfork = 1; /* must be in line with ev_default_fork */ |
1767 | postfork = 1; /* must be in line with ev_default_fork */ |
1349 | } |
1768 | } |
|
|
1769 | #endif /* multiplicity */ |
1350 | |
1770 | |
|
|
1771 | #if EV_VERIFY |
|
|
1772 | static void noinline |
|
|
1773 | verify_watcher (EV_P_ W w) |
|
|
1774 | { |
|
|
1775 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1776 | |
|
|
1777 | if (w->pending) |
|
|
1778 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1779 | } |
|
|
1780 | |
|
|
1781 | static void noinline |
|
|
1782 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1783 | { |
|
|
1784 | int i; |
|
|
1785 | |
|
|
1786 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1787 | { |
|
|
1788 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1789 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1790 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1791 | |
|
|
1792 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1793 | } |
|
|
1794 | } |
|
|
1795 | |
|
|
1796 | static void noinline |
|
|
1797 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1798 | { |
|
|
1799 | while (cnt--) |
|
|
1800 | { |
|
|
1801 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1802 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1803 | } |
|
|
1804 | } |
|
|
1805 | #endif |
|
|
1806 | |
|
|
1807 | #if EV_MINIMAL < 2 |
|
|
1808 | void |
|
|
1809 | ev_loop_verify (EV_P) |
|
|
1810 | { |
|
|
1811 | #if EV_VERIFY |
|
|
1812 | int i; |
|
|
1813 | WL w; |
|
|
1814 | |
|
|
1815 | assert (activecnt >= -1); |
|
|
1816 | |
|
|
1817 | assert (fdchangemax >= fdchangecnt); |
|
|
1818 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1819 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1820 | |
|
|
1821 | assert (anfdmax >= 0); |
|
|
1822 | for (i = 0; i < anfdmax; ++i) |
|
|
1823 | for (w = anfds [i].head; w; w = w->next) |
|
|
1824 | { |
|
|
1825 | verify_watcher (EV_A_ (W)w); |
|
|
1826 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1827 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1828 | } |
|
|
1829 | |
|
|
1830 | assert (timermax >= timercnt); |
|
|
1831 | verify_heap (EV_A_ timers, timercnt); |
|
|
1832 | |
|
|
1833 | #if EV_PERIODIC_ENABLE |
|
|
1834 | assert (periodicmax >= periodiccnt); |
|
|
1835 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1836 | #endif |
|
|
1837 | |
|
|
1838 | for (i = NUMPRI; i--; ) |
|
|
1839 | { |
|
|
1840 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1841 | #if EV_IDLE_ENABLE |
|
|
1842 | assert (idleall >= 0); |
|
|
1843 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1844 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1845 | #endif |
|
|
1846 | } |
|
|
1847 | |
|
|
1848 | #if EV_FORK_ENABLE |
|
|
1849 | assert (forkmax >= forkcnt); |
|
|
1850 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1851 | #endif |
|
|
1852 | |
|
|
1853 | #if EV_ASYNC_ENABLE |
|
|
1854 | assert (asyncmax >= asynccnt); |
|
|
1855 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1856 | #endif |
|
|
1857 | |
|
|
1858 | assert (preparemax >= preparecnt); |
|
|
1859 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1860 | |
|
|
1861 | assert (checkmax >= checkcnt); |
|
|
1862 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1863 | |
|
|
1864 | # if 0 |
|
|
1865 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1866 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
|
|
1867 | # endif |
|
|
1868 | #endif |
|
|
1869 | } |
1351 | #endif |
1870 | #endif |
1352 | |
1871 | |
1353 | #if EV_MULTIPLICITY |
1872 | #if EV_MULTIPLICITY |
1354 | struct ev_loop * |
1873 | struct ev_loop * |
1355 | ev_default_loop_init (unsigned int flags) |
1874 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1389 | { |
1908 | { |
1390 | #if EV_MULTIPLICITY |
1909 | #if EV_MULTIPLICITY |
1391 | struct ev_loop *loop = ev_default_loop_ptr; |
1910 | struct ev_loop *loop = ev_default_loop_ptr; |
1392 | #endif |
1911 | #endif |
1393 | |
1912 | |
|
|
1913 | ev_default_loop_ptr = 0; |
|
|
1914 | |
1394 | #ifndef _WIN32 |
1915 | #ifndef _WIN32 |
1395 | ev_ref (EV_A); /* child watcher */ |
1916 | ev_ref (EV_A); /* child watcher */ |
1396 | ev_signal_stop (EV_A_ &childev); |
1917 | ev_signal_stop (EV_A_ &childev); |
1397 | #endif |
1918 | #endif |
1398 | |
1919 | |
… | |
… | |
1404 | { |
1925 | { |
1405 | #if EV_MULTIPLICITY |
1926 | #if EV_MULTIPLICITY |
1406 | struct ev_loop *loop = ev_default_loop_ptr; |
1927 | struct ev_loop *loop = ev_default_loop_ptr; |
1407 | #endif |
1928 | #endif |
1408 | |
1929 | |
1409 | if (backend) |
|
|
1410 | postfork = 1; /* must be in line with ev_loop_fork */ |
1930 | postfork = 1; /* must be in line with ev_loop_fork */ |
1411 | } |
1931 | } |
1412 | |
1932 | |
1413 | /*****************************************************************************/ |
1933 | /*****************************************************************************/ |
1414 | |
1934 | |
1415 | void |
1935 | void |
1416 | ev_invoke (EV_P_ void *w, int revents) |
1936 | ev_invoke (EV_P_ void *w, int revents) |
1417 | { |
1937 | { |
1418 | EV_CB_INVOKE ((W)w, revents); |
1938 | EV_CB_INVOKE ((W)w, revents); |
1419 | } |
1939 | } |
1420 | |
1940 | |
1421 | void inline_speed |
1941 | unsigned int |
1422 | call_pending (EV_P) |
1942 | ev_pending_count (EV_P) |
|
|
1943 | { |
|
|
1944 | int pri; |
|
|
1945 | unsigned int count = 0; |
|
|
1946 | |
|
|
1947 | for (pri = NUMPRI; pri--; ) |
|
|
1948 | count += pendingcnt [pri]; |
|
|
1949 | |
|
|
1950 | return count; |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | void noinline |
|
|
1954 | ev_invoke_pending (EV_P) |
1423 | { |
1955 | { |
1424 | int pri; |
1956 | int pri; |
1425 | |
1957 | |
1426 | for (pri = NUMPRI; pri--; ) |
1958 | for (pri = NUMPRI; pri--; ) |
1427 | while (pendingcnt [pri]) |
1959 | while (pendingcnt [pri]) |
1428 | { |
1960 | { |
1429 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1961 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1430 | |
1962 | |
1431 | if (expect_true (p->w)) |
|
|
1432 | { |
|
|
1433 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1963 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1964 | /* ^ this is no longer true, as pending_w could be here */ |
1434 | |
1965 | |
1435 | p->w->pending = 0; |
1966 | p->w->pending = 0; |
1436 | EV_CB_INVOKE (p->w, p->events); |
1967 | EV_CB_INVOKE (p->w, p->events); |
1437 | } |
1968 | EV_FREQUENT_CHECK; |
1438 | } |
1969 | } |
1439 | } |
1970 | } |
1440 | |
1971 | |
1441 | void inline_size |
|
|
1442 | timers_reify (EV_P) |
|
|
1443 | { |
|
|
1444 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1445 | { |
|
|
1446 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1447 | |
|
|
1448 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1449 | |
|
|
1450 | /* first reschedule or stop timer */ |
|
|
1451 | if (w->repeat) |
|
|
1452 | { |
|
|
1453 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1454 | |
|
|
1455 | ((WT)w)->at += w->repeat; |
|
|
1456 | if (((WT)w)->at < mn_now) |
|
|
1457 | ((WT)w)->at = mn_now; |
|
|
1458 | |
|
|
1459 | downheap (timers, timercnt, 0); |
|
|
1460 | } |
|
|
1461 | else |
|
|
1462 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1463 | |
|
|
1464 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1465 | } |
|
|
1466 | } |
|
|
1467 | |
|
|
1468 | #if EV_PERIODIC_ENABLE |
|
|
1469 | void inline_size |
|
|
1470 | periodics_reify (EV_P) |
|
|
1471 | { |
|
|
1472 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1473 | { |
|
|
1474 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1475 | |
|
|
1476 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1477 | |
|
|
1478 | /* first reschedule or stop timer */ |
|
|
1479 | if (w->reschedule_cb) |
|
|
1480 | { |
|
|
1481 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1482 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1483 | downheap (periodics, periodiccnt, 0); |
|
|
1484 | } |
|
|
1485 | else if (w->interval) |
|
|
1486 | { |
|
|
1487 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1488 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1489 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1490 | downheap (periodics, periodiccnt, 0); |
|
|
1491 | } |
|
|
1492 | else |
|
|
1493 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1494 | |
|
|
1495 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1496 | } |
|
|
1497 | } |
|
|
1498 | |
|
|
1499 | static void noinline |
|
|
1500 | periodics_reschedule (EV_P) |
|
|
1501 | { |
|
|
1502 | int i; |
|
|
1503 | |
|
|
1504 | /* adjust periodics after time jump */ |
|
|
1505 | for (i = 0; i < periodiccnt; ++i) |
|
|
1506 | { |
|
|
1507 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1508 | |
|
|
1509 | if (w->reschedule_cb) |
|
|
1510 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1511 | else if (w->interval) |
|
|
1512 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1513 | } |
|
|
1514 | |
|
|
1515 | /* now rebuild the heap */ |
|
|
1516 | for (i = periodiccnt >> 1; i--; ) |
|
|
1517 | downheap (periodics, periodiccnt, i); |
|
|
1518 | } |
|
|
1519 | #endif |
|
|
1520 | |
|
|
1521 | #if EV_IDLE_ENABLE |
1972 | #if EV_IDLE_ENABLE |
1522 | void inline_size |
1973 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1974 | /* only when higher priorities are idle" logic */ |
|
|
1975 | inline_size void |
1523 | idle_reify (EV_P) |
1976 | idle_reify (EV_P) |
1524 | { |
1977 | { |
1525 | if (expect_false (idleall)) |
1978 | if (expect_false (idleall)) |
1526 | { |
1979 | { |
1527 | int pri; |
1980 | int pri; |
… | |
… | |
1539 | } |
1992 | } |
1540 | } |
1993 | } |
1541 | } |
1994 | } |
1542 | #endif |
1995 | #endif |
1543 | |
1996 | |
1544 | void inline_speed |
1997 | /* make timers pending */ |
|
|
1998 | inline_size void |
|
|
1999 | timers_reify (EV_P) |
|
|
2000 | { |
|
|
2001 | EV_FREQUENT_CHECK; |
|
|
2002 | |
|
|
2003 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2004 | { |
|
|
2005 | do |
|
|
2006 | { |
|
|
2007 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2008 | |
|
|
2009 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2010 | |
|
|
2011 | /* first reschedule or stop timer */ |
|
|
2012 | if (w->repeat) |
|
|
2013 | { |
|
|
2014 | ev_at (w) += w->repeat; |
|
|
2015 | if (ev_at (w) < mn_now) |
|
|
2016 | ev_at (w) = mn_now; |
|
|
2017 | |
|
|
2018 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2019 | |
|
|
2020 | ANHE_at_cache (timers [HEAP0]); |
|
|
2021 | downheap (timers, timercnt, HEAP0); |
|
|
2022 | } |
|
|
2023 | else |
|
|
2024 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2025 | |
|
|
2026 | EV_FREQUENT_CHECK; |
|
|
2027 | feed_reverse (EV_A_ (W)w); |
|
|
2028 | } |
|
|
2029 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2030 | |
|
|
2031 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
2032 | } |
|
|
2033 | } |
|
|
2034 | |
|
|
2035 | #if EV_PERIODIC_ENABLE |
|
|
2036 | /* make periodics pending */ |
|
|
2037 | inline_size void |
|
|
2038 | periodics_reify (EV_P) |
|
|
2039 | { |
|
|
2040 | EV_FREQUENT_CHECK; |
|
|
2041 | |
|
|
2042 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2043 | { |
|
|
2044 | int feed_count = 0; |
|
|
2045 | |
|
|
2046 | do |
|
|
2047 | { |
|
|
2048 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2049 | |
|
|
2050 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2051 | |
|
|
2052 | /* first reschedule or stop timer */ |
|
|
2053 | if (w->reschedule_cb) |
|
|
2054 | { |
|
|
2055 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2056 | |
|
|
2057 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2058 | |
|
|
2059 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2060 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2061 | } |
|
|
2062 | else if (w->interval) |
|
|
2063 | { |
|
|
2064 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2065 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2066 | /* this might happen because of floating point inexactness */ |
|
|
2067 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2068 | { |
|
|
2069 | ev_at (w) += w->interval; |
|
|
2070 | |
|
|
2071 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2072 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2073 | /* has effectively asked to get triggered more often than possible */ |
|
|
2074 | if (ev_at (w) < ev_rt_now) |
|
|
2075 | ev_at (w) = ev_rt_now; |
|
|
2076 | } |
|
|
2077 | |
|
|
2078 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2079 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2080 | } |
|
|
2081 | else |
|
|
2082 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2083 | |
|
|
2084 | EV_FREQUENT_CHECK; |
|
|
2085 | feed_reverse (EV_A_ (W)w); |
|
|
2086 | } |
|
|
2087 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2088 | |
|
|
2089 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2090 | } |
|
|
2091 | } |
|
|
2092 | |
|
|
2093 | /* simply recalculate all periodics */ |
|
|
2094 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
2095 | static void noinline |
|
|
2096 | periodics_reschedule (EV_P) |
|
|
2097 | { |
|
|
2098 | int i; |
|
|
2099 | |
|
|
2100 | /* adjust periodics after time jump */ |
|
|
2101 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2102 | { |
|
|
2103 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2104 | |
|
|
2105 | if (w->reschedule_cb) |
|
|
2106 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2107 | else if (w->interval) |
|
|
2108 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2109 | |
|
|
2110 | ANHE_at_cache (periodics [i]); |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | reheap (periodics, periodiccnt); |
|
|
2114 | } |
|
|
2115 | #endif |
|
|
2116 | |
|
|
2117 | /* adjust all timers by a given offset */ |
|
|
2118 | static void noinline |
|
|
2119 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2120 | { |
|
|
2121 | int i; |
|
|
2122 | |
|
|
2123 | for (i = 0; i < timercnt; ++i) |
|
|
2124 | { |
|
|
2125 | ANHE *he = timers + i + HEAP0; |
|
|
2126 | ANHE_w (*he)->at += adjust; |
|
|
2127 | ANHE_at_cache (*he); |
|
|
2128 | } |
|
|
2129 | } |
|
|
2130 | |
|
|
2131 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2132 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2133 | inline_speed void |
1545 | time_update (EV_P_ ev_tstamp max_block) |
2134 | time_update (EV_P_ ev_tstamp max_block) |
1546 | { |
2135 | { |
1547 | int i; |
|
|
1548 | |
|
|
1549 | #if EV_USE_MONOTONIC |
2136 | #if EV_USE_MONOTONIC |
1550 | if (expect_true (have_monotonic)) |
2137 | if (expect_true (have_monotonic)) |
1551 | { |
2138 | { |
|
|
2139 | int i; |
1552 | ev_tstamp odiff = rtmn_diff; |
2140 | ev_tstamp odiff = rtmn_diff; |
1553 | |
2141 | |
1554 | mn_now = get_clock (); |
2142 | mn_now = get_clock (); |
1555 | |
2143 | |
1556 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2144 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1574 | */ |
2162 | */ |
1575 | for (i = 4; --i; ) |
2163 | for (i = 4; --i; ) |
1576 | { |
2164 | { |
1577 | rtmn_diff = ev_rt_now - mn_now; |
2165 | rtmn_diff = ev_rt_now - mn_now; |
1578 | |
2166 | |
1579 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2167 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1580 | return; /* all is well */ |
2168 | return; /* all is well */ |
1581 | |
2169 | |
1582 | ev_rt_now = ev_time (); |
2170 | ev_rt_now = ev_time (); |
1583 | mn_now = get_clock (); |
2171 | mn_now = get_clock (); |
1584 | now_floor = mn_now; |
2172 | now_floor = mn_now; |
1585 | } |
2173 | } |
1586 | |
2174 | |
|
|
2175 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2176 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1587 | # if EV_PERIODIC_ENABLE |
2177 | # if EV_PERIODIC_ENABLE |
1588 | periodics_reschedule (EV_A); |
2178 | periodics_reschedule (EV_A); |
1589 | # endif |
2179 | # endif |
1590 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1591 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1592 | } |
2180 | } |
1593 | else |
2181 | else |
1594 | #endif |
2182 | #endif |
1595 | { |
2183 | { |
1596 | ev_rt_now = ev_time (); |
2184 | ev_rt_now = ev_time (); |
1597 | |
2185 | |
1598 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2186 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1599 | { |
2187 | { |
|
|
2188 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2189 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1600 | #if EV_PERIODIC_ENABLE |
2190 | #if EV_PERIODIC_ENABLE |
1601 | periodics_reschedule (EV_A); |
2191 | periodics_reschedule (EV_A); |
1602 | #endif |
2192 | #endif |
1603 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1604 | for (i = 0; i < timercnt; ++i) |
|
|
1605 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1606 | } |
2193 | } |
1607 | |
2194 | |
1608 | mn_now = ev_rt_now; |
2195 | mn_now = ev_rt_now; |
1609 | } |
2196 | } |
1610 | } |
2197 | } |
1611 | |
2198 | |
1612 | void |
2199 | void |
1613 | ev_ref (EV_P) |
|
|
1614 | { |
|
|
1615 | ++activecnt; |
|
|
1616 | } |
|
|
1617 | |
|
|
1618 | void |
|
|
1619 | ev_unref (EV_P) |
|
|
1620 | { |
|
|
1621 | --activecnt; |
|
|
1622 | } |
|
|
1623 | |
|
|
1624 | static int loop_done; |
|
|
1625 | |
|
|
1626 | void |
|
|
1627 | ev_loop (EV_P_ int flags) |
2200 | ev_loop (EV_P_ int flags) |
1628 | { |
2201 | { |
|
|
2202 | #if EV_MINIMAL < 2 |
|
|
2203 | ++loop_depth; |
|
|
2204 | #endif |
|
|
2205 | |
|
|
2206 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2207 | |
1629 | loop_done = EVUNLOOP_CANCEL; |
2208 | loop_done = EVUNLOOP_CANCEL; |
1630 | |
2209 | |
1631 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2210 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1632 | |
2211 | |
1633 | do |
2212 | do |
1634 | { |
2213 | { |
|
|
2214 | #if EV_VERIFY >= 2 |
|
|
2215 | ev_loop_verify (EV_A); |
|
|
2216 | #endif |
|
|
2217 | |
1635 | #ifndef _WIN32 |
2218 | #ifndef _WIN32 |
1636 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2219 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1637 | if (expect_false (getpid () != curpid)) |
2220 | if (expect_false (getpid () != curpid)) |
1638 | { |
2221 | { |
1639 | curpid = getpid (); |
2222 | curpid = getpid (); |
… | |
… | |
1645 | /* we might have forked, so queue fork handlers */ |
2228 | /* we might have forked, so queue fork handlers */ |
1646 | if (expect_false (postfork)) |
2229 | if (expect_false (postfork)) |
1647 | if (forkcnt) |
2230 | if (forkcnt) |
1648 | { |
2231 | { |
1649 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2232 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1650 | call_pending (EV_A); |
2233 | EV_INVOKE_PENDING; |
1651 | } |
2234 | } |
1652 | #endif |
2235 | #endif |
1653 | |
2236 | |
1654 | /* queue prepare watchers (and execute them) */ |
2237 | /* queue prepare watchers (and execute them) */ |
1655 | if (expect_false (preparecnt)) |
2238 | if (expect_false (preparecnt)) |
1656 | { |
2239 | { |
1657 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2240 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1658 | call_pending (EV_A); |
2241 | EV_INVOKE_PENDING; |
1659 | } |
2242 | } |
1660 | |
2243 | |
1661 | if (expect_false (!activecnt)) |
2244 | if (expect_false (loop_done)) |
1662 | break; |
2245 | break; |
1663 | |
2246 | |
1664 | /* we might have forked, so reify kernel state if necessary */ |
2247 | /* we might have forked, so reify kernel state if necessary */ |
1665 | if (expect_false (postfork)) |
2248 | if (expect_false (postfork)) |
1666 | loop_fork (EV_A); |
2249 | loop_fork (EV_A); |
… | |
… | |
1673 | ev_tstamp waittime = 0.; |
2256 | ev_tstamp waittime = 0.; |
1674 | ev_tstamp sleeptime = 0.; |
2257 | ev_tstamp sleeptime = 0.; |
1675 | |
2258 | |
1676 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2259 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1677 | { |
2260 | { |
|
|
2261 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2262 | ev_tstamp prev_mn_now = mn_now; |
|
|
2263 | |
1678 | /* update time to cancel out callback processing overhead */ |
2264 | /* update time to cancel out callback processing overhead */ |
1679 | time_update (EV_A_ 1e100); |
2265 | time_update (EV_A_ 1e100); |
1680 | |
2266 | |
1681 | waittime = MAX_BLOCKTIME; |
2267 | waittime = MAX_BLOCKTIME; |
1682 | |
2268 | |
1683 | if (timercnt) |
2269 | if (timercnt) |
1684 | { |
2270 | { |
1685 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2271 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1686 | if (waittime > to) waittime = to; |
2272 | if (waittime > to) waittime = to; |
1687 | } |
2273 | } |
1688 | |
2274 | |
1689 | #if EV_PERIODIC_ENABLE |
2275 | #if EV_PERIODIC_ENABLE |
1690 | if (periodiccnt) |
2276 | if (periodiccnt) |
1691 | { |
2277 | { |
1692 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2278 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1693 | if (waittime > to) waittime = to; |
2279 | if (waittime > to) waittime = to; |
1694 | } |
2280 | } |
1695 | #endif |
2281 | #endif |
1696 | |
2282 | |
|
|
2283 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1697 | if (expect_false (waittime < timeout_blocktime)) |
2284 | if (expect_false (waittime < timeout_blocktime)) |
1698 | waittime = timeout_blocktime; |
2285 | waittime = timeout_blocktime; |
1699 | |
2286 | |
1700 | sleeptime = waittime - backend_fudge; |
2287 | /* extra check because io_blocktime is commonly 0 */ |
1701 | |
|
|
1702 | if (expect_true (sleeptime > io_blocktime)) |
2288 | if (expect_false (io_blocktime)) |
1703 | sleeptime = io_blocktime; |
|
|
1704 | |
|
|
1705 | if (sleeptime) |
|
|
1706 | { |
2289 | { |
|
|
2290 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2291 | |
|
|
2292 | if (sleeptime > waittime - backend_fudge) |
|
|
2293 | sleeptime = waittime - backend_fudge; |
|
|
2294 | |
|
|
2295 | if (expect_true (sleeptime > 0.)) |
|
|
2296 | { |
1707 | ev_sleep (sleeptime); |
2297 | ev_sleep (sleeptime); |
1708 | waittime -= sleeptime; |
2298 | waittime -= sleeptime; |
|
|
2299 | } |
1709 | } |
2300 | } |
1710 | } |
2301 | } |
1711 | |
2302 | |
|
|
2303 | #if EV_MINIMAL < 2 |
1712 | ++loop_count; |
2304 | ++loop_count; |
|
|
2305 | #endif |
|
|
2306 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1713 | backend_poll (EV_A_ waittime); |
2307 | backend_poll (EV_A_ waittime); |
|
|
2308 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1714 | |
2309 | |
1715 | /* update ev_rt_now, do magic */ |
2310 | /* update ev_rt_now, do magic */ |
1716 | time_update (EV_A_ waittime + sleeptime); |
2311 | time_update (EV_A_ waittime + sleeptime); |
1717 | } |
2312 | } |
1718 | |
2313 | |
… | |
… | |
1729 | |
2324 | |
1730 | /* queue check watchers, to be executed first */ |
2325 | /* queue check watchers, to be executed first */ |
1731 | if (expect_false (checkcnt)) |
2326 | if (expect_false (checkcnt)) |
1732 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2327 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1733 | |
2328 | |
1734 | call_pending (EV_A); |
2329 | EV_INVOKE_PENDING; |
1735 | } |
2330 | } |
1736 | while (expect_true ( |
2331 | while (expect_true ( |
1737 | activecnt |
2332 | activecnt |
1738 | && !loop_done |
2333 | && !loop_done |
1739 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2334 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1740 | )); |
2335 | )); |
1741 | |
2336 | |
1742 | if (loop_done == EVUNLOOP_ONE) |
2337 | if (loop_done == EVUNLOOP_ONE) |
1743 | loop_done = EVUNLOOP_CANCEL; |
2338 | loop_done = EVUNLOOP_CANCEL; |
|
|
2339 | |
|
|
2340 | #if EV_MINIMAL < 2 |
|
|
2341 | --loop_depth; |
|
|
2342 | #endif |
1744 | } |
2343 | } |
1745 | |
2344 | |
1746 | void |
2345 | void |
1747 | ev_unloop (EV_P_ int how) |
2346 | ev_unloop (EV_P_ int how) |
1748 | { |
2347 | { |
1749 | loop_done = how; |
2348 | loop_done = how; |
1750 | } |
2349 | } |
1751 | |
2350 | |
|
|
2351 | void |
|
|
2352 | ev_ref (EV_P) |
|
|
2353 | { |
|
|
2354 | ++activecnt; |
|
|
2355 | } |
|
|
2356 | |
|
|
2357 | void |
|
|
2358 | ev_unref (EV_P) |
|
|
2359 | { |
|
|
2360 | --activecnt; |
|
|
2361 | } |
|
|
2362 | |
|
|
2363 | void |
|
|
2364 | ev_now_update (EV_P) |
|
|
2365 | { |
|
|
2366 | time_update (EV_A_ 1e100); |
|
|
2367 | } |
|
|
2368 | |
|
|
2369 | void |
|
|
2370 | ev_suspend (EV_P) |
|
|
2371 | { |
|
|
2372 | ev_now_update (EV_A); |
|
|
2373 | } |
|
|
2374 | |
|
|
2375 | void |
|
|
2376 | ev_resume (EV_P) |
|
|
2377 | { |
|
|
2378 | ev_tstamp mn_prev = mn_now; |
|
|
2379 | |
|
|
2380 | ev_now_update (EV_A); |
|
|
2381 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2382 | #if EV_PERIODIC_ENABLE |
|
|
2383 | /* TODO: really do this? */ |
|
|
2384 | periodics_reschedule (EV_A); |
|
|
2385 | #endif |
|
|
2386 | } |
|
|
2387 | |
1752 | /*****************************************************************************/ |
2388 | /*****************************************************************************/ |
|
|
2389 | /* singly-linked list management, used when the expected list length is short */ |
1753 | |
2390 | |
1754 | void inline_size |
2391 | inline_size void |
1755 | wlist_add (WL *head, WL elem) |
2392 | wlist_add (WL *head, WL elem) |
1756 | { |
2393 | { |
1757 | elem->next = *head; |
2394 | elem->next = *head; |
1758 | *head = elem; |
2395 | *head = elem; |
1759 | } |
2396 | } |
1760 | |
2397 | |
1761 | void inline_size |
2398 | inline_size void |
1762 | wlist_del (WL *head, WL elem) |
2399 | wlist_del (WL *head, WL elem) |
1763 | { |
2400 | { |
1764 | while (*head) |
2401 | while (*head) |
1765 | { |
2402 | { |
1766 | if (*head == elem) |
2403 | if (*head == elem) |
… | |
… | |
1771 | |
2408 | |
1772 | head = &(*head)->next; |
2409 | head = &(*head)->next; |
1773 | } |
2410 | } |
1774 | } |
2411 | } |
1775 | |
2412 | |
1776 | void inline_speed |
2413 | /* internal, faster, version of ev_clear_pending */ |
|
|
2414 | inline_speed void |
1777 | clear_pending (EV_P_ W w) |
2415 | clear_pending (EV_P_ W w) |
1778 | { |
2416 | { |
1779 | if (w->pending) |
2417 | if (w->pending) |
1780 | { |
2418 | { |
1781 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2419 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1782 | w->pending = 0; |
2420 | w->pending = 0; |
1783 | } |
2421 | } |
1784 | } |
2422 | } |
1785 | |
2423 | |
1786 | int |
2424 | int |
… | |
… | |
1790 | int pending = w_->pending; |
2428 | int pending = w_->pending; |
1791 | |
2429 | |
1792 | if (expect_true (pending)) |
2430 | if (expect_true (pending)) |
1793 | { |
2431 | { |
1794 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2432 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2433 | p->w = (W)&pending_w; |
1795 | w_->pending = 0; |
2434 | w_->pending = 0; |
1796 | p->w = 0; |
|
|
1797 | return p->events; |
2435 | return p->events; |
1798 | } |
2436 | } |
1799 | else |
2437 | else |
1800 | return 0; |
2438 | return 0; |
1801 | } |
2439 | } |
1802 | |
2440 | |
1803 | void inline_size |
2441 | inline_size void |
1804 | pri_adjust (EV_P_ W w) |
2442 | pri_adjust (EV_P_ W w) |
1805 | { |
2443 | { |
1806 | int pri = w->priority; |
2444 | int pri = ev_priority (w); |
1807 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2445 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1808 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2446 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1809 | w->priority = pri; |
2447 | ev_set_priority (w, pri); |
1810 | } |
2448 | } |
1811 | |
2449 | |
1812 | void inline_speed |
2450 | inline_speed void |
1813 | ev_start (EV_P_ W w, int active) |
2451 | ev_start (EV_P_ W w, int active) |
1814 | { |
2452 | { |
1815 | pri_adjust (EV_A_ w); |
2453 | pri_adjust (EV_A_ w); |
1816 | w->active = active; |
2454 | w->active = active; |
1817 | ev_ref (EV_A); |
2455 | ev_ref (EV_A); |
1818 | } |
2456 | } |
1819 | |
2457 | |
1820 | void inline_size |
2458 | inline_size void |
1821 | ev_stop (EV_P_ W w) |
2459 | ev_stop (EV_P_ W w) |
1822 | { |
2460 | { |
1823 | ev_unref (EV_A); |
2461 | ev_unref (EV_A); |
1824 | w->active = 0; |
2462 | w->active = 0; |
1825 | } |
2463 | } |
… | |
… | |
1832 | int fd = w->fd; |
2470 | int fd = w->fd; |
1833 | |
2471 | |
1834 | if (expect_false (ev_is_active (w))) |
2472 | if (expect_false (ev_is_active (w))) |
1835 | return; |
2473 | return; |
1836 | |
2474 | |
1837 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2475 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2476 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2477 | |
|
|
2478 | EV_FREQUENT_CHECK; |
1838 | |
2479 | |
1839 | ev_start (EV_A_ (W)w, 1); |
2480 | ev_start (EV_A_ (W)w, 1); |
1840 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2481 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1841 | wlist_add (&anfds[fd].head, (WL)w); |
2482 | wlist_add (&anfds[fd].head, (WL)w); |
1842 | |
2483 | |
1843 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2484 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1844 | w->events &= ~EV_IOFDSET; |
2485 | w->events &= ~EV__IOFDSET; |
|
|
2486 | |
|
|
2487 | EV_FREQUENT_CHECK; |
1845 | } |
2488 | } |
1846 | |
2489 | |
1847 | void noinline |
2490 | void noinline |
1848 | ev_io_stop (EV_P_ ev_io *w) |
2491 | ev_io_stop (EV_P_ ev_io *w) |
1849 | { |
2492 | { |
1850 | clear_pending (EV_A_ (W)w); |
2493 | clear_pending (EV_A_ (W)w); |
1851 | if (expect_false (!ev_is_active (w))) |
2494 | if (expect_false (!ev_is_active (w))) |
1852 | return; |
2495 | return; |
1853 | |
2496 | |
1854 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2497 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2498 | |
|
|
2499 | EV_FREQUENT_CHECK; |
1855 | |
2500 | |
1856 | wlist_del (&anfds[w->fd].head, (WL)w); |
2501 | wlist_del (&anfds[w->fd].head, (WL)w); |
1857 | ev_stop (EV_A_ (W)w); |
2502 | ev_stop (EV_A_ (W)w); |
1858 | |
2503 | |
1859 | fd_change (EV_A_ w->fd, 1); |
2504 | fd_change (EV_A_ w->fd, 1); |
|
|
2505 | |
|
|
2506 | EV_FREQUENT_CHECK; |
1860 | } |
2507 | } |
1861 | |
2508 | |
1862 | void noinline |
2509 | void noinline |
1863 | ev_timer_start (EV_P_ ev_timer *w) |
2510 | ev_timer_start (EV_P_ ev_timer *w) |
1864 | { |
2511 | { |
1865 | if (expect_false (ev_is_active (w))) |
2512 | if (expect_false (ev_is_active (w))) |
1866 | return; |
2513 | return; |
1867 | |
2514 | |
1868 | ((WT)w)->at += mn_now; |
2515 | ev_at (w) += mn_now; |
1869 | |
2516 | |
1870 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2517 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1871 | |
2518 | |
|
|
2519 | EV_FREQUENT_CHECK; |
|
|
2520 | |
|
|
2521 | ++timercnt; |
1872 | ev_start (EV_A_ (W)w, ++timercnt); |
2522 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1873 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2523 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1874 | timers [timercnt - 1] = (WT)w; |
2524 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1875 | upheap (timers, timercnt - 1); |
2525 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2526 | upheap (timers, ev_active (w)); |
1876 | |
2527 | |
|
|
2528 | EV_FREQUENT_CHECK; |
|
|
2529 | |
1877 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2530 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1878 | } |
2531 | } |
1879 | |
2532 | |
1880 | void noinline |
2533 | void noinline |
1881 | ev_timer_stop (EV_P_ ev_timer *w) |
2534 | ev_timer_stop (EV_P_ ev_timer *w) |
1882 | { |
2535 | { |
1883 | clear_pending (EV_A_ (W)w); |
2536 | clear_pending (EV_A_ (W)w); |
1884 | if (expect_false (!ev_is_active (w))) |
2537 | if (expect_false (!ev_is_active (w))) |
1885 | return; |
2538 | return; |
1886 | |
2539 | |
1887 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2540 | EV_FREQUENT_CHECK; |
1888 | |
2541 | |
1889 | { |
2542 | { |
1890 | int active = ((W)w)->active; |
2543 | int active = ev_active (w); |
1891 | |
2544 | |
|
|
2545 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2546 | |
|
|
2547 | --timercnt; |
|
|
2548 | |
1892 | if (expect_true (--active < --timercnt)) |
2549 | if (expect_true (active < timercnt + HEAP0)) |
1893 | { |
2550 | { |
1894 | timers [active] = timers [timercnt]; |
2551 | timers [active] = timers [timercnt + HEAP0]; |
1895 | adjustheap (timers, timercnt, active); |
2552 | adjustheap (timers, timercnt, active); |
1896 | } |
2553 | } |
1897 | } |
2554 | } |
1898 | |
2555 | |
1899 | ((WT)w)->at -= mn_now; |
2556 | EV_FREQUENT_CHECK; |
|
|
2557 | |
|
|
2558 | ev_at (w) -= mn_now; |
1900 | |
2559 | |
1901 | ev_stop (EV_A_ (W)w); |
2560 | ev_stop (EV_A_ (W)w); |
1902 | } |
2561 | } |
1903 | |
2562 | |
1904 | void noinline |
2563 | void noinline |
1905 | ev_timer_again (EV_P_ ev_timer *w) |
2564 | ev_timer_again (EV_P_ ev_timer *w) |
1906 | { |
2565 | { |
|
|
2566 | EV_FREQUENT_CHECK; |
|
|
2567 | |
1907 | if (ev_is_active (w)) |
2568 | if (ev_is_active (w)) |
1908 | { |
2569 | { |
1909 | if (w->repeat) |
2570 | if (w->repeat) |
1910 | { |
2571 | { |
1911 | ((WT)w)->at = mn_now + w->repeat; |
2572 | ev_at (w) = mn_now + w->repeat; |
|
|
2573 | ANHE_at_cache (timers [ev_active (w)]); |
1912 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2574 | adjustheap (timers, timercnt, ev_active (w)); |
1913 | } |
2575 | } |
1914 | else |
2576 | else |
1915 | ev_timer_stop (EV_A_ w); |
2577 | ev_timer_stop (EV_A_ w); |
1916 | } |
2578 | } |
1917 | else if (w->repeat) |
2579 | else if (w->repeat) |
1918 | { |
2580 | { |
1919 | w->at = w->repeat; |
2581 | ev_at (w) = w->repeat; |
1920 | ev_timer_start (EV_A_ w); |
2582 | ev_timer_start (EV_A_ w); |
1921 | } |
2583 | } |
|
|
2584 | |
|
|
2585 | EV_FREQUENT_CHECK; |
|
|
2586 | } |
|
|
2587 | |
|
|
2588 | ev_tstamp |
|
|
2589 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2590 | { |
|
|
2591 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1922 | } |
2592 | } |
1923 | |
2593 | |
1924 | #if EV_PERIODIC_ENABLE |
2594 | #if EV_PERIODIC_ENABLE |
1925 | void noinline |
2595 | void noinline |
1926 | ev_periodic_start (EV_P_ ev_periodic *w) |
2596 | ev_periodic_start (EV_P_ ev_periodic *w) |
1927 | { |
2597 | { |
1928 | if (expect_false (ev_is_active (w))) |
2598 | if (expect_false (ev_is_active (w))) |
1929 | return; |
2599 | return; |
1930 | |
2600 | |
1931 | if (w->reschedule_cb) |
2601 | if (w->reschedule_cb) |
1932 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2602 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1933 | else if (w->interval) |
2603 | else if (w->interval) |
1934 | { |
2604 | { |
1935 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2605 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1936 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2606 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1937 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2607 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1938 | } |
2608 | } |
1939 | else |
2609 | else |
1940 | ((WT)w)->at = w->offset; |
2610 | ev_at (w) = w->offset; |
1941 | |
2611 | |
|
|
2612 | EV_FREQUENT_CHECK; |
|
|
2613 | |
|
|
2614 | ++periodiccnt; |
1942 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2615 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1943 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2616 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1944 | periodics [periodiccnt - 1] = (WT)w; |
2617 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1945 | upheap (periodics, periodiccnt - 1); |
2618 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2619 | upheap (periodics, ev_active (w)); |
1946 | |
2620 | |
|
|
2621 | EV_FREQUENT_CHECK; |
|
|
2622 | |
1947 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2623 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1948 | } |
2624 | } |
1949 | |
2625 | |
1950 | void noinline |
2626 | void noinline |
1951 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2627 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1952 | { |
2628 | { |
1953 | clear_pending (EV_A_ (W)w); |
2629 | clear_pending (EV_A_ (W)w); |
1954 | if (expect_false (!ev_is_active (w))) |
2630 | if (expect_false (!ev_is_active (w))) |
1955 | return; |
2631 | return; |
1956 | |
2632 | |
1957 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2633 | EV_FREQUENT_CHECK; |
1958 | |
2634 | |
1959 | { |
2635 | { |
1960 | int active = ((W)w)->active; |
2636 | int active = ev_active (w); |
1961 | |
2637 | |
|
|
2638 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2639 | |
|
|
2640 | --periodiccnt; |
|
|
2641 | |
1962 | if (expect_true (--active < --periodiccnt)) |
2642 | if (expect_true (active < periodiccnt + HEAP0)) |
1963 | { |
2643 | { |
1964 | periodics [active] = periodics [periodiccnt]; |
2644 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1965 | adjustheap (periodics, periodiccnt, active); |
2645 | adjustheap (periodics, periodiccnt, active); |
1966 | } |
2646 | } |
1967 | } |
2647 | } |
1968 | |
2648 | |
|
|
2649 | EV_FREQUENT_CHECK; |
|
|
2650 | |
1969 | ev_stop (EV_A_ (W)w); |
2651 | ev_stop (EV_A_ (W)w); |
1970 | } |
2652 | } |
1971 | |
2653 | |
1972 | void noinline |
2654 | void noinline |
1973 | ev_periodic_again (EV_P_ ev_periodic *w) |
2655 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
1984 | |
2666 | |
1985 | void noinline |
2667 | void noinline |
1986 | ev_signal_start (EV_P_ ev_signal *w) |
2668 | ev_signal_start (EV_P_ ev_signal *w) |
1987 | { |
2669 | { |
1988 | #if EV_MULTIPLICITY |
2670 | #if EV_MULTIPLICITY |
1989 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2671 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1990 | #endif |
2672 | #endif |
1991 | if (expect_false (ev_is_active (w))) |
2673 | if (expect_false (ev_is_active (w))) |
1992 | return; |
2674 | return; |
1993 | |
2675 | |
1994 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2676 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
1995 | |
2677 | |
|
|
2678 | EV_FREQUENT_CHECK; |
|
|
2679 | |
|
|
2680 | #if EV_USE_SIGNALFD |
|
|
2681 | if (sigfd == -2) |
|
|
2682 | { |
|
|
2683 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
2684 | if (sigfd < 0 && errno == EINVAL) |
|
|
2685 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
2686 | |
|
|
2687 | if (sigfd >= 0) |
|
|
2688 | { |
|
|
2689 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
2690 | |
|
|
2691 | sigemptyset (&sigfd_set); |
|
|
2692 | |
|
|
2693 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2694 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2695 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2696 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2697 | } |
|
|
2698 | } |
|
|
2699 | |
|
|
2700 | if (sigfd >= 0) |
|
|
2701 | { |
|
|
2702 | /* TODO: check .head */ |
|
|
2703 | sigaddset (&sigfd_set, w->signum); |
|
|
2704 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2705 | |
|
|
2706 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2707 | } |
|
|
2708 | else |
|
|
2709 | #endif |
1996 | evpipe_init (EV_A); |
2710 | evpipe_init (EV_A); |
1997 | |
2711 | |
1998 | { |
2712 | { |
1999 | #ifndef _WIN32 |
2713 | #ifndef _WIN32 |
2000 | sigset_t full, prev; |
2714 | sigset_t full, prev; |
2001 | sigfillset (&full); |
2715 | sigfillset (&full); |
2002 | sigprocmask (SIG_SETMASK, &full, &prev); |
2716 | sigprocmask (SIG_SETMASK, &full, &prev); |
2003 | #endif |
2717 | #endif |
2004 | |
2718 | |
2005 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2719 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2006 | |
2720 | |
2007 | #ifndef _WIN32 |
2721 | #ifndef _WIN32 |
|
|
2722 | # if EV_USE_SIGNALFD |
|
|
2723 | if (sigfd < 0)/*TODO*/ |
|
|
2724 | # endif |
|
|
2725 | sigdelset (&prev, w->signum); |
2008 | sigprocmask (SIG_SETMASK, &prev, 0); |
2726 | sigprocmask (SIG_SETMASK, &prev, 0); |
2009 | #endif |
2727 | #endif |
2010 | } |
2728 | } |
2011 | |
2729 | |
2012 | ev_start (EV_A_ (W)w, 1); |
2730 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
2015 | if (!((WL)w)->next) |
2733 | if (!((WL)w)->next) |
2016 | { |
2734 | { |
2017 | #if _WIN32 |
2735 | #if _WIN32 |
2018 | signal (w->signum, ev_sighandler); |
2736 | signal (w->signum, ev_sighandler); |
2019 | #else |
2737 | #else |
|
|
2738 | # if EV_USE_SIGNALFD |
|
|
2739 | if (sigfd < 0) /*TODO*/ |
|
|
2740 | # endif |
|
|
2741 | { |
2020 | struct sigaction sa; |
2742 | struct sigaction sa = { }; |
2021 | sa.sa_handler = ev_sighandler; |
2743 | sa.sa_handler = ev_sighandler; |
2022 | sigfillset (&sa.sa_mask); |
2744 | sigfillset (&sa.sa_mask); |
2023 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2745 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2024 | sigaction (w->signum, &sa, 0); |
2746 | sigaction (w->signum, &sa, 0); |
|
|
2747 | } |
2025 | #endif |
2748 | #endif |
2026 | } |
2749 | } |
|
|
2750 | |
|
|
2751 | EV_FREQUENT_CHECK; |
2027 | } |
2752 | } |
2028 | |
2753 | |
2029 | void noinline |
2754 | void noinline |
2030 | ev_signal_stop (EV_P_ ev_signal *w) |
2755 | ev_signal_stop (EV_P_ ev_signal *w) |
2031 | { |
2756 | { |
2032 | clear_pending (EV_A_ (W)w); |
2757 | clear_pending (EV_A_ (W)w); |
2033 | if (expect_false (!ev_is_active (w))) |
2758 | if (expect_false (!ev_is_active (w))) |
2034 | return; |
2759 | return; |
2035 | |
2760 | |
|
|
2761 | EV_FREQUENT_CHECK; |
|
|
2762 | |
2036 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2763 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2037 | ev_stop (EV_A_ (W)w); |
2764 | ev_stop (EV_A_ (W)w); |
2038 | |
2765 | |
2039 | if (!signals [w->signum - 1].head) |
2766 | if (!signals [w->signum - 1].head) |
|
|
2767 | #if EV_USE_SIGNALFD |
|
|
2768 | if (sigfd >= 0) |
|
|
2769 | { |
|
|
2770 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2771 | sigdelset (&sigfd_set, w->signum); |
|
|
2772 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2773 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2774 | /*TODO: maybe unblock signal? */ |
|
|
2775 | } |
|
|
2776 | else |
|
|
2777 | #endif |
2040 | signal (w->signum, SIG_DFL); |
2778 | signal (w->signum, SIG_DFL); |
|
|
2779 | |
|
|
2780 | EV_FREQUENT_CHECK; |
2041 | } |
2781 | } |
2042 | |
2782 | |
2043 | void |
2783 | void |
2044 | ev_child_start (EV_P_ ev_child *w) |
2784 | ev_child_start (EV_P_ ev_child *w) |
2045 | { |
2785 | { |
2046 | #if EV_MULTIPLICITY |
2786 | #if EV_MULTIPLICITY |
2047 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2787 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2048 | #endif |
2788 | #endif |
2049 | if (expect_false (ev_is_active (w))) |
2789 | if (expect_false (ev_is_active (w))) |
2050 | return; |
2790 | return; |
2051 | |
2791 | |
|
|
2792 | EV_FREQUENT_CHECK; |
|
|
2793 | |
2052 | ev_start (EV_A_ (W)w, 1); |
2794 | ev_start (EV_A_ (W)w, 1); |
2053 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2795 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2796 | |
|
|
2797 | EV_FREQUENT_CHECK; |
2054 | } |
2798 | } |
2055 | |
2799 | |
2056 | void |
2800 | void |
2057 | ev_child_stop (EV_P_ ev_child *w) |
2801 | ev_child_stop (EV_P_ ev_child *w) |
2058 | { |
2802 | { |
2059 | clear_pending (EV_A_ (W)w); |
2803 | clear_pending (EV_A_ (W)w); |
2060 | if (expect_false (!ev_is_active (w))) |
2804 | if (expect_false (!ev_is_active (w))) |
2061 | return; |
2805 | return; |
2062 | |
2806 | |
|
|
2807 | EV_FREQUENT_CHECK; |
|
|
2808 | |
2063 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2809 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2064 | ev_stop (EV_A_ (W)w); |
2810 | ev_stop (EV_A_ (W)w); |
|
|
2811 | |
|
|
2812 | EV_FREQUENT_CHECK; |
2065 | } |
2813 | } |
2066 | |
2814 | |
2067 | #if EV_STAT_ENABLE |
2815 | #if EV_STAT_ENABLE |
2068 | |
2816 | |
2069 | # ifdef _WIN32 |
2817 | # ifdef _WIN32 |
2070 | # undef lstat |
2818 | # undef lstat |
2071 | # define lstat(a,b) _stati64 (a,b) |
2819 | # define lstat(a,b) _stati64 (a,b) |
2072 | # endif |
2820 | # endif |
2073 | |
2821 | |
2074 | #define DEF_STAT_INTERVAL 5.0074891 |
2822 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2823 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2075 | #define MIN_STAT_INTERVAL 0.1074891 |
2824 | #define MIN_STAT_INTERVAL 0.1074891 |
2076 | |
2825 | |
2077 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2826 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2078 | |
2827 | |
2079 | #if EV_USE_INOTIFY |
2828 | #if EV_USE_INOTIFY |
2080 | # define EV_INOTIFY_BUFSIZE 8192 |
2829 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2084 | { |
2833 | { |
2085 | 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); |
2834 | 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); |
2086 | |
2835 | |
2087 | if (w->wd < 0) |
2836 | if (w->wd < 0) |
2088 | { |
2837 | { |
|
|
2838 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2089 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2839 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2090 | |
2840 | |
2091 | /* monitor some parent directory for speedup hints */ |
2841 | /* monitor some parent directory for speedup hints */ |
|
|
2842 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2843 | /* but an efficiency issue only */ |
2092 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2844 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2093 | { |
2845 | { |
2094 | char path [4096]; |
2846 | char path [4096]; |
2095 | strcpy (path, w->path); |
2847 | strcpy (path, w->path); |
2096 | |
2848 | |
… | |
… | |
2099 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2851 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2100 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2852 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2101 | |
2853 | |
2102 | char *pend = strrchr (path, '/'); |
2854 | char *pend = strrchr (path, '/'); |
2103 | |
2855 | |
2104 | if (!pend) |
2856 | if (!pend || pend == path) |
2105 | break; /* whoops, no '/', complain to your admin */ |
2857 | break; |
2106 | |
2858 | |
2107 | *pend = 0; |
2859 | *pend = 0; |
2108 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2860 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2109 | } |
2861 | } |
2110 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2862 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2111 | } |
2863 | } |
2112 | } |
2864 | } |
2113 | else |
|
|
2114 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2115 | |
2865 | |
2116 | if (w->wd >= 0) |
2866 | if (w->wd >= 0) |
|
|
2867 | { |
2117 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2868 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2869 | |
|
|
2870 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2871 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2872 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2873 | struct statfs sfs; |
|
|
2874 | |
|
|
2875 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2876 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2877 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2878 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2879 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2880 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2881 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2882 | return; |
|
|
2883 | |
|
|
2884 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2885 | ev_timer_again (EV_A_ &w->timer); |
|
|
2886 | } |
2118 | } |
2887 | } |
2119 | |
2888 | |
2120 | static void noinline |
2889 | static void noinline |
2121 | infy_del (EV_P_ ev_stat *w) |
2890 | infy_del (EV_P_ ev_stat *w) |
2122 | { |
2891 | { |
… | |
… | |
2136 | |
2905 | |
2137 | static void noinline |
2906 | static void noinline |
2138 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2907 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2139 | { |
2908 | { |
2140 | if (slot < 0) |
2909 | if (slot < 0) |
2141 | /* overflow, need to check for all hahs slots */ |
2910 | /* overflow, need to check for all hash slots */ |
2142 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2911 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2143 | infy_wd (EV_A_ slot, wd, ev); |
2912 | infy_wd (EV_A_ slot, wd, ev); |
2144 | else |
2913 | else |
2145 | { |
2914 | { |
2146 | WL w_; |
2915 | WL w_; |
… | |
… | |
2152 | |
2921 | |
2153 | if (w->wd == wd || wd == -1) |
2922 | if (w->wd == wd || wd == -1) |
2154 | { |
2923 | { |
2155 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2924 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2156 | { |
2925 | { |
|
|
2926 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2157 | w->wd = -1; |
2927 | w->wd = -1; |
2158 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2928 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2159 | } |
2929 | } |
2160 | |
2930 | |
2161 | stat_timer_cb (EV_A_ &w->timer, 0); |
2931 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2174 | |
2944 | |
2175 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2945 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2176 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2946 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2177 | } |
2947 | } |
2178 | |
2948 | |
2179 | void inline_size |
2949 | inline_size void |
|
|
2950 | check_2625 (EV_P) |
|
|
2951 | { |
|
|
2952 | /* kernels < 2.6.25 are borked |
|
|
2953 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2954 | */ |
|
|
2955 | struct utsname buf; |
|
|
2956 | int major, minor, micro; |
|
|
2957 | |
|
|
2958 | if (uname (&buf)) |
|
|
2959 | return; |
|
|
2960 | |
|
|
2961 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2962 | return; |
|
|
2963 | |
|
|
2964 | if (major < 2 |
|
|
2965 | || (major == 2 && minor < 6) |
|
|
2966 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2967 | return; |
|
|
2968 | |
|
|
2969 | fs_2625 = 1; |
|
|
2970 | } |
|
|
2971 | |
|
|
2972 | inline_size void |
2180 | infy_init (EV_P) |
2973 | infy_init (EV_P) |
2181 | { |
2974 | { |
2182 | if (fs_fd != -2) |
2975 | if (fs_fd != -2) |
2183 | return; |
2976 | return; |
|
|
2977 | |
|
|
2978 | fs_fd = -1; |
|
|
2979 | |
|
|
2980 | check_2625 (EV_A); |
2184 | |
2981 | |
2185 | fs_fd = inotify_init (); |
2982 | fs_fd = inotify_init (); |
2186 | |
2983 | |
2187 | if (fs_fd >= 0) |
2984 | if (fs_fd >= 0) |
2188 | { |
2985 | { |
… | |
… | |
2190 | ev_set_priority (&fs_w, EV_MAXPRI); |
2987 | ev_set_priority (&fs_w, EV_MAXPRI); |
2191 | ev_io_start (EV_A_ &fs_w); |
2988 | ev_io_start (EV_A_ &fs_w); |
2192 | } |
2989 | } |
2193 | } |
2990 | } |
2194 | |
2991 | |
2195 | void inline_size |
2992 | inline_size void |
2196 | infy_fork (EV_P) |
2993 | infy_fork (EV_P) |
2197 | { |
2994 | { |
2198 | int slot; |
2995 | int slot; |
2199 | |
2996 | |
2200 | if (fs_fd < 0) |
2997 | if (fs_fd < 0) |
… | |
… | |
2216 | w->wd = -1; |
3013 | w->wd = -1; |
2217 | |
3014 | |
2218 | if (fs_fd >= 0) |
3015 | if (fs_fd >= 0) |
2219 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3016 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2220 | else |
3017 | else |
2221 | ev_timer_start (EV_A_ &w->timer); |
3018 | ev_timer_again (EV_A_ &w->timer); |
2222 | } |
3019 | } |
2223 | |
|
|
2224 | } |
3020 | } |
2225 | } |
3021 | } |
2226 | |
3022 | |
|
|
3023 | #endif |
|
|
3024 | |
|
|
3025 | #ifdef _WIN32 |
|
|
3026 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3027 | #else |
|
|
3028 | # define EV_LSTAT(p,b) lstat (p, b) |
2227 | #endif |
3029 | #endif |
2228 | |
3030 | |
2229 | void |
3031 | void |
2230 | ev_stat_stat (EV_P_ ev_stat *w) |
3032 | ev_stat_stat (EV_P_ ev_stat *w) |
2231 | { |
3033 | { |
… | |
… | |
2258 | || w->prev.st_atime != w->attr.st_atime |
3060 | || w->prev.st_atime != w->attr.st_atime |
2259 | || w->prev.st_mtime != w->attr.st_mtime |
3061 | || w->prev.st_mtime != w->attr.st_mtime |
2260 | || w->prev.st_ctime != w->attr.st_ctime |
3062 | || w->prev.st_ctime != w->attr.st_ctime |
2261 | ) { |
3063 | ) { |
2262 | #if EV_USE_INOTIFY |
3064 | #if EV_USE_INOTIFY |
|
|
3065 | if (fs_fd >= 0) |
|
|
3066 | { |
2263 | infy_del (EV_A_ w); |
3067 | infy_del (EV_A_ w); |
2264 | infy_add (EV_A_ w); |
3068 | infy_add (EV_A_ w); |
2265 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3069 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3070 | } |
2266 | #endif |
3071 | #endif |
2267 | |
3072 | |
2268 | ev_feed_event (EV_A_ w, EV_STAT); |
3073 | ev_feed_event (EV_A_ w, EV_STAT); |
2269 | } |
3074 | } |
2270 | } |
3075 | } |
… | |
… | |
2273 | ev_stat_start (EV_P_ ev_stat *w) |
3078 | ev_stat_start (EV_P_ ev_stat *w) |
2274 | { |
3079 | { |
2275 | if (expect_false (ev_is_active (w))) |
3080 | if (expect_false (ev_is_active (w))) |
2276 | return; |
3081 | return; |
2277 | |
3082 | |
2278 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2279 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2280 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2281 | |
|
|
2282 | ev_stat_stat (EV_A_ w); |
3083 | ev_stat_stat (EV_A_ w); |
2283 | |
3084 | |
|
|
3085 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2284 | if (w->interval < MIN_STAT_INTERVAL) |
3086 | w->interval = MIN_STAT_INTERVAL; |
2285 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2286 | |
3087 | |
2287 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3088 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2288 | ev_set_priority (&w->timer, ev_priority (w)); |
3089 | ev_set_priority (&w->timer, ev_priority (w)); |
2289 | |
3090 | |
2290 | #if EV_USE_INOTIFY |
3091 | #if EV_USE_INOTIFY |
2291 | infy_init (EV_A); |
3092 | infy_init (EV_A); |
2292 | |
3093 | |
2293 | if (fs_fd >= 0) |
3094 | if (fs_fd >= 0) |
2294 | infy_add (EV_A_ w); |
3095 | infy_add (EV_A_ w); |
2295 | else |
3096 | else |
2296 | #endif |
3097 | #endif |
2297 | ev_timer_start (EV_A_ &w->timer); |
3098 | ev_timer_again (EV_A_ &w->timer); |
2298 | |
3099 | |
2299 | ev_start (EV_A_ (W)w, 1); |
3100 | ev_start (EV_A_ (W)w, 1); |
|
|
3101 | |
|
|
3102 | EV_FREQUENT_CHECK; |
2300 | } |
3103 | } |
2301 | |
3104 | |
2302 | void |
3105 | void |
2303 | ev_stat_stop (EV_P_ ev_stat *w) |
3106 | ev_stat_stop (EV_P_ ev_stat *w) |
2304 | { |
3107 | { |
2305 | clear_pending (EV_A_ (W)w); |
3108 | clear_pending (EV_A_ (W)w); |
2306 | if (expect_false (!ev_is_active (w))) |
3109 | if (expect_false (!ev_is_active (w))) |
2307 | return; |
3110 | return; |
2308 | |
3111 | |
|
|
3112 | EV_FREQUENT_CHECK; |
|
|
3113 | |
2309 | #if EV_USE_INOTIFY |
3114 | #if EV_USE_INOTIFY |
2310 | infy_del (EV_A_ w); |
3115 | infy_del (EV_A_ w); |
2311 | #endif |
3116 | #endif |
2312 | ev_timer_stop (EV_A_ &w->timer); |
3117 | ev_timer_stop (EV_A_ &w->timer); |
2313 | |
3118 | |
2314 | ev_stop (EV_A_ (W)w); |
3119 | ev_stop (EV_A_ (W)w); |
|
|
3120 | |
|
|
3121 | EV_FREQUENT_CHECK; |
2315 | } |
3122 | } |
2316 | #endif |
3123 | #endif |
2317 | |
3124 | |
2318 | #if EV_IDLE_ENABLE |
3125 | #if EV_IDLE_ENABLE |
2319 | void |
3126 | void |
… | |
… | |
2321 | { |
3128 | { |
2322 | if (expect_false (ev_is_active (w))) |
3129 | if (expect_false (ev_is_active (w))) |
2323 | return; |
3130 | return; |
2324 | |
3131 | |
2325 | pri_adjust (EV_A_ (W)w); |
3132 | pri_adjust (EV_A_ (W)w); |
|
|
3133 | |
|
|
3134 | EV_FREQUENT_CHECK; |
2326 | |
3135 | |
2327 | { |
3136 | { |
2328 | int active = ++idlecnt [ABSPRI (w)]; |
3137 | int active = ++idlecnt [ABSPRI (w)]; |
2329 | |
3138 | |
2330 | ++idleall; |
3139 | ++idleall; |
2331 | ev_start (EV_A_ (W)w, active); |
3140 | ev_start (EV_A_ (W)w, active); |
2332 | |
3141 | |
2333 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3142 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2334 | idles [ABSPRI (w)][active - 1] = w; |
3143 | idles [ABSPRI (w)][active - 1] = w; |
2335 | } |
3144 | } |
|
|
3145 | |
|
|
3146 | EV_FREQUENT_CHECK; |
2336 | } |
3147 | } |
2337 | |
3148 | |
2338 | void |
3149 | void |
2339 | ev_idle_stop (EV_P_ ev_idle *w) |
3150 | ev_idle_stop (EV_P_ ev_idle *w) |
2340 | { |
3151 | { |
2341 | clear_pending (EV_A_ (W)w); |
3152 | clear_pending (EV_A_ (W)w); |
2342 | if (expect_false (!ev_is_active (w))) |
3153 | if (expect_false (!ev_is_active (w))) |
2343 | return; |
3154 | return; |
2344 | |
3155 | |
|
|
3156 | EV_FREQUENT_CHECK; |
|
|
3157 | |
2345 | { |
3158 | { |
2346 | int active = ((W)w)->active; |
3159 | int active = ev_active (w); |
2347 | |
3160 | |
2348 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3161 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2349 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3162 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2350 | |
3163 | |
2351 | ev_stop (EV_A_ (W)w); |
3164 | ev_stop (EV_A_ (W)w); |
2352 | --idleall; |
3165 | --idleall; |
2353 | } |
3166 | } |
|
|
3167 | |
|
|
3168 | EV_FREQUENT_CHECK; |
2354 | } |
3169 | } |
2355 | #endif |
3170 | #endif |
2356 | |
3171 | |
2357 | void |
3172 | void |
2358 | ev_prepare_start (EV_P_ ev_prepare *w) |
3173 | ev_prepare_start (EV_P_ ev_prepare *w) |
2359 | { |
3174 | { |
2360 | if (expect_false (ev_is_active (w))) |
3175 | if (expect_false (ev_is_active (w))) |
2361 | return; |
3176 | return; |
|
|
3177 | |
|
|
3178 | EV_FREQUENT_CHECK; |
2362 | |
3179 | |
2363 | ev_start (EV_A_ (W)w, ++preparecnt); |
3180 | ev_start (EV_A_ (W)w, ++preparecnt); |
2364 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3181 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2365 | prepares [preparecnt - 1] = w; |
3182 | prepares [preparecnt - 1] = w; |
|
|
3183 | |
|
|
3184 | EV_FREQUENT_CHECK; |
2366 | } |
3185 | } |
2367 | |
3186 | |
2368 | void |
3187 | void |
2369 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3188 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2370 | { |
3189 | { |
2371 | clear_pending (EV_A_ (W)w); |
3190 | clear_pending (EV_A_ (W)w); |
2372 | if (expect_false (!ev_is_active (w))) |
3191 | if (expect_false (!ev_is_active (w))) |
2373 | return; |
3192 | return; |
2374 | |
3193 | |
|
|
3194 | EV_FREQUENT_CHECK; |
|
|
3195 | |
2375 | { |
3196 | { |
2376 | int active = ((W)w)->active; |
3197 | int active = ev_active (w); |
|
|
3198 | |
2377 | prepares [active - 1] = prepares [--preparecnt]; |
3199 | prepares [active - 1] = prepares [--preparecnt]; |
2378 | ((W)prepares [active - 1])->active = active; |
3200 | ev_active (prepares [active - 1]) = active; |
2379 | } |
3201 | } |
2380 | |
3202 | |
2381 | ev_stop (EV_A_ (W)w); |
3203 | ev_stop (EV_A_ (W)w); |
|
|
3204 | |
|
|
3205 | EV_FREQUENT_CHECK; |
2382 | } |
3206 | } |
2383 | |
3207 | |
2384 | void |
3208 | void |
2385 | ev_check_start (EV_P_ ev_check *w) |
3209 | ev_check_start (EV_P_ ev_check *w) |
2386 | { |
3210 | { |
2387 | if (expect_false (ev_is_active (w))) |
3211 | if (expect_false (ev_is_active (w))) |
2388 | return; |
3212 | return; |
|
|
3213 | |
|
|
3214 | EV_FREQUENT_CHECK; |
2389 | |
3215 | |
2390 | ev_start (EV_A_ (W)w, ++checkcnt); |
3216 | ev_start (EV_A_ (W)w, ++checkcnt); |
2391 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3217 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2392 | checks [checkcnt - 1] = w; |
3218 | checks [checkcnt - 1] = w; |
|
|
3219 | |
|
|
3220 | EV_FREQUENT_CHECK; |
2393 | } |
3221 | } |
2394 | |
3222 | |
2395 | void |
3223 | void |
2396 | ev_check_stop (EV_P_ ev_check *w) |
3224 | ev_check_stop (EV_P_ ev_check *w) |
2397 | { |
3225 | { |
2398 | clear_pending (EV_A_ (W)w); |
3226 | clear_pending (EV_A_ (W)w); |
2399 | if (expect_false (!ev_is_active (w))) |
3227 | if (expect_false (!ev_is_active (w))) |
2400 | return; |
3228 | return; |
2401 | |
3229 | |
|
|
3230 | EV_FREQUENT_CHECK; |
|
|
3231 | |
2402 | { |
3232 | { |
2403 | int active = ((W)w)->active; |
3233 | int active = ev_active (w); |
|
|
3234 | |
2404 | checks [active - 1] = checks [--checkcnt]; |
3235 | checks [active - 1] = checks [--checkcnt]; |
2405 | ((W)checks [active - 1])->active = active; |
3236 | ev_active (checks [active - 1]) = active; |
2406 | } |
3237 | } |
2407 | |
3238 | |
2408 | ev_stop (EV_A_ (W)w); |
3239 | ev_stop (EV_A_ (W)w); |
|
|
3240 | |
|
|
3241 | EV_FREQUENT_CHECK; |
2409 | } |
3242 | } |
2410 | |
3243 | |
2411 | #if EV_EMBED_ENABLE |
3244 | #if EV_EMBED_ENABLE |
2412 | void noinline |
3245 | void noinline |
2413 | ev_embed_sweep (EV_P_ ev_embed *w) |
3246 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2440 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3273 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2441 | } |
3274 | } |
2442 | } |
3275 | } |
2443 | } |
3276 | } |
2444 | |
3277 | |
|
|
3278 | static void |
|
|
3279 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3280 | { |
|
|
3281 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3282 | |
|
|
3283 | ev_embed_stop (EV_A_ w); |
|
|
3284 | |
|
|
3285 | { |
|
|
3286 | struct ev_loop *loop = w->other; |
|
|
3287 | |
|
|
3288 | ev_loop_fork (EV_A); |
|
|
3289 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3290 | } |
|
|
3291 | |
|
|
3292 | ev_embed_start (EV_A_ w); |
|
|
3293 | } |
|
|
3294 | |
2445 | #if 0 |
3295 | #if 0 |
2446 | static void |
3296 | static void |
2447 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3297 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2448 | { |
3298 | { |
2449 | ev_idle_stop (EV_A_ idle); |
3299 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2456 | if (expect_false (ev_is_active (w))) |
3306 | if (expect_false (ev_is_active (w))) |
2457 | return; |
3307 | return; |
2458 | |
3308 | |
2459 | { |
3309 | { |
2460 | struct ev_loop *loop = w->other; |
3310 | struct ev_loop *loop = w->other; |
2461 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3311 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2462 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3312 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2463 | } |
3313 | } |
|
|
3314 | |
|
|
3315 | EV_FREQUENT_CHECK; |
2464 | |
3316 | |
2465 | ev_set_priority (&w->io, ev_priority (w)); |
3317 | ev_set_priority (&w->io, ev_priority (w)); |
2466 | ev_io_start (EV_A_ &w->io); |
3318 | ev_io_start (EV_A_ &w->io); |
2467 | |
3319 | |
2468 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3320 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2469 | ev_set_priority (&w->prepare, EV_MINPRI); |
3321 | ev_set_priority (&w->prepare, EV_MINPRI); |
2470 | ev_prepare_start (EV_A_ &w->prepare); |
3322 | ev_prepare_start (EV_A_ &w->prepare); |
2471 | |
3323 | |
|
|
3324 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3325 | ev_fork_start (EV_A_ &w->fork); |
|
|
3326 | |
2472 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3327 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2473 | |
3328 | |
2474 | ev_start (EV_A_ (W)w, 1); |
3329 | ev_start (EV_A_ (W)w, 1); |
|
|
3330 | |
|
|
3331 | EV_FREQUENT_CHECK; |
2475 | } |
3332 | } |
2476 | |
3333 | |
2477 | void |
3334 | void |
2478 | ev_embed_stop (EV_P_ ev_embed *w) |
3335 | ev_embed_stop (EV_P_ ev_embed *w) |
2479 | { |
3336 | { |
2480 | clear_pending (EV_A_ (W)w); |
3337 | clear_pending (EV_A_ (W)w); |
2481 | if (expect_false (!ev_is_active (w))) |
3338 | if (expect_false (!ev_is_active (w))) |
2482 | return; |
3339 | return; |
2483 | |
3340 | |
|
|
3341 | EV_FREQUENT_CHECK; |
|
|
3342 | |
2484 | ev_io_stop (EV_A_ &w->io); |
3343 | ev_io_stop (EV_A_ &w->io); |
2485 | ev_prepare_stop (EV_A_ &w->prepare); |
3344 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3345 | ev_fork_stop (EV_A_ &w->fork); |
2486 | |
3346 | |
2487 | ev_stop (EV_A_ (W)w); |
3347 | EV_FREQUENT_CHECK; |
2488 | } |
3348 | } |
2489 | #endif |
3349 | #endif |
2490 | |
3350 | |
2491 | #if EV_FORK_ENABLE |
3351 | #if EV_FORK_ENABLE |
2492 | void |
3352 | void |
2493 | ev_fork_start (EV_P_ ev_fork *w) |
3353 | ev_fork_start (EV_P_ ev_fork *w) |
2494 | { |
3354 | { |
2495 | if (expect_false (ev_is_active (w))) |
3355 | if (expect_false (ev_is_active (w))) |
2496 | return; |
3356 | return; |
|
|
3357 | |
|
|
3358 | EV_FREQUENT_CHECK; |
2497 | |
3359 | |
2498 | ev_start (EV_A_ (W)w, ++forkcnt); |
3360 | ev_start (EV_A_ (W)w, ++forkcnt); |
2499 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3361 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2500 | forks [forkcnt - 1] = w; |
3362 | forks [forkcnt - 1] = w; |
|
|
3363 | |
|
|
3364 | EV_FREQUENT_CHECK; |
2501 | } |
3365 | } |
2502 | |
3366 | |
2503 | void |
3367 | void |
2504 | ev_fork_stop (EV_P_ ev_fork *w) |
3368 | ev_fork_stop (EV_P_ ev_fork *w) |
2505 | { |
3369 | { |
2506 | clear_pending (EV_A_ (W)w); |
3370 | clear_pending (EV_A_ (W)w); |
2507 | if (expect_false (!ev_is_active (w))) |
3371 | if (expect_false (!ev_is_active (w))) |
2508 | return; |
3372 | return; |
2509 | |
3373 | |
|
|
3374 | EV_FREQUENT_CHECK; |
|
|
3375 | |
2510 | { |
3376 | { |
2511 | int active = ((W)w)->active; |
3377 | int active = ev_active (w); |
|
|
3378 | |
2512 | forks [active - 1] = forks [--forkcnt]; |
3379 | forks [active - 1] = forks [--forkcnt]; |
2513 | ((W)forks [active - 1])->active = active; |
3380 | ev_active (forks [active - 1]) = active; |
2514 | } |
3381 | } |
2515 | |
3382 | |
2516 | ev_stop (EV_A_ (W)w); |
3383 | ev_stop (EV_A_ (W)w); |
|
|
3384 | |
|
|
3385 | EV_FREQUENT_CHECK; |
2517 | } |
3386 | } |
2518 | #endif |
3387 | #endif |
2519 | |
3388 | |
2520 | #if EV_ASYNC_ENABLE |
3389 | #if EV_ASYNC_ENABLE |
2521 | void |
3390 | void |
… | |
… | |
2523 | { |
3392 | { |
2524 | if (expect_false (ev_is_active (w))) |
3393 | if (expect_false (ev_is_active (w))) |
2525 | return; |
3394 | return; |
2526 | |
3395 | |
2527 | evpipe_init (EV_A); |
3396 | evpipe_init (EV_A); |
|
|
3397 | |
|
|
3398 | EV_FREQUENT_CHECK; |
2528 | |
3399 | |
2529 | ev_start (EV_A_ (W)w, ++asynccnt); |
3400 | ev_start (EV_A_ (W)w, ++asynccnt); |
2530 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3401 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2531 | asyncs [asynccnt - 1] = w; |
3402 | asyncs [asynccnt - 1] = w; |
|
|
3403 | |
|
|
3404 | EV_FREQUENT_CHECK; |
2532 | } |
3405 | } |
2533 | |
3406 | |
2534 | void |
3407 | void |
2535 | ev_async_stop (EV_P_ ev_async *w) |
3408 | ev_async_stop (EV_P_ ev_async *w) |
2536 | { |
3409 | { |
2537 | clear_pending (EV_A_ (W)w); |
3410 | clear_pending (EV_A_ (W)w); |
2538 | if (expect_false (!ev_is_active (w))) |
3411 | if (expect_false (!ev_is_active (w))) |
2539 | return; |
3412 | return; |
2540 | |
3413 | |
|
|
3414 | EV_FREQUENT_CHECK; |
|
|
3415 | |
2541 | { |
3416 | { |
2542 | int active = ((W)w)->active; |
3417 | int active = ev_active (w); |
|
|
3418 | |
2543 | asyncs [active - 1] = asyncs [--asynccnt]; |
3419 | asyncs [active - 1] = asyncs [--asynccnt]; |
2544 | ((W)asyncs [active - 1])->active = active; |
3420 | ev_active (asyncs [active - 1]) = active; |
2545 | } |
3421 | } |
2546 | |
3422 | |
2547 | ev_stop (EV_A_ (W)w); |
3423 | ev_stop (EV_A_ (W)w); |
|
|
3424 | |
|
|
3425 | EV_FREQUENT_CHECK; |
2548 | } |
3426 | } |
2549 | |
3427 | |
2550 | void |
3428 | void |
2551 | ev_async_send (EV_P_ ev_async *w) |
3429 | ev_async_send (EV_P_ ev_async *w) |
2552 | { |
3430 | { |
… | |
… | |
2569 | once_cb (EV_P_ struct ev_once *once, int revents) |
3447 | once_cb (EV_P_ struct ev_once *once, int revents) |
2570 | { |
3448 | { |
2571 | void (*cb)(int revents, void *arg) = once->cb; |
3449 | void (*cb)(int revents, void *arg) = once->cb; |
2572 | void *arg = once->arg; |
3450 | void *arg = once->arg; |
2573 | |
3451 | |
2574 | ev_io_stop (EV_A_ &once->io); |
3452 | ev_io_stop (EV_A_ &once->io); |
2575 | ev_timer_stop (EV_A_ &once->to); |
3453 | ev_timer_stop (EV_A_ &once->to); |
2576 | ev_free (once); |
3454 | ev_free (once); |
2577 | |
3455 | |
2578 | cb (revents, arg); |
3456 | cb (revents, arg); |
2579 | } |
3457 | } |
2580 | |
3458 | |
2581 | static void |
3459 | static void |
2582 | once_cb_io (EV_P_ ev_io *w, int revents) |
3460 | once_cb_io (EV_P_ ev_io *w, int revents) |
2583 | { |
3461 | { |
2584 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3462 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3463 | |
|
|
3464 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2585 | } |
3465 | } |
2586 | |
3466 | |
2587 | static void |
3467 | static void |
2588 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3468 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2589 | { |
3469 | { |
2590 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3470 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3471 | |
|
|
3472 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2591 | } |
3473 | } |
2592 | |
3474 | |
2593 | void |
3475 | void |
2594 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3476 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2595 | { |
3477 | { |
… | |
… | |
2617 | ev_timer_set (&once->to, timeout, 0.); |
3499 | ev_timer_set (&once->to, timeout, 0.); |
2618 | ev_timer_start (EV_A_ &once->to); |
3500 | ev_timer_start (EV_A_ &once->to); |
2619 | } |
3501 | } |
2620 | } |
3502 | } |
2621 | |
3503 | |
|
|
3504 | /*****************************************************************************/ |
|
|
3505 | |
|
|
3506 | #if EV_WALK_ENABLE |
|
|
3507 | void |
|
|
3508 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3509 | { |
|
|
3510 | int i, j; |
|
|
3511 | ev_watcher_list *wl, *wn; |
|
|
3512 | |
|
|
3513 | if (types & (EV_IO | EV_EMBED)) |
|
|
3514 | for (i = 0; i < anfdmax; ++i) |
|
|
3515 | for (wl = anfds [i].head; wl; ) |
|
|
3516 | { |
|
|
3517 | wn = wl->next; |
|
|
3518 | |
|
|
3519 | #if EV_EMBED_ENABLE |
|
|
3520 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3521 | { |
|
|
3522 | if (types & EV_EMBED) |
|
|
3523 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3524 | } |
|
|
3525 | else |
|
|
3526 | #endif |
|
|
3527 | #if EV_USE_INOTIFY |
|
|
3528 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3529 | ; |
|
|
3530 | else |
|
|
3531 | #endif |
|
|
3532 | if ((ev_io *)wl != &pipe_w) |
|
|
3533 | if (types & EV_IO) |
|
|
3534 | cb (EV_A_ EV_IO, wl); |
|
|
3535 | |
|
|
3536 | wl = wn; |
|
|
3537 | } |
|
|
3538 | |
|
|
3539 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3540 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3541 | #if EV_STAT_ENABLE |
|
|
3542 | /*TODO: timer is not always active*/ |
|
|
3543 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3544 | { |
|
|
3545 | if (types & EV_STAT) |
|
|
3546 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3547 | } |
|
|
3548 | else |
|
|
3549 | #endif |
|
|
3550 | if (types & EV_TIMER) |
|
|
3551 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3552 | |
|
|
3553 | #if EV_PERIODIC_ENABLE |
|
|
3554 | if (types & EV_PERIODIC) |
|
|
3555 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3556 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3557 | #endif |
|
|
3558 | |
|
|
3559 | #if EV_IDLE_ENABLE |
|
|
3560 | if (types & EV_IDLE) |
|
|
3561 | for (j = NUMPRI; i--; ) |
|
|
3562 | for (i = idlecnt [j]; i--; ) |
|
|
3563 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3564 | #endif |
|
|
3565 | |
|
|
3566 | #if EV_FORK_ENABLE |
|
|
3567 | if (types & EV_FORK) |
|
|
3568 | for (i = forkcnt; i--; ) |
|
|
3569 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3570 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3571 | #endif |
|
|
3572 | |
|
|
3573 | #if EV_ASYNC_ENABLE |
|
|
3574 | if (types & EV_ASYNC) |
|
|
3575 | for (i = asynccnt; i--; ) |
|
|
3576 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3577 | #endif |
|
|
3578 | |
|
|
3579 | if (types & EV_PREPARE) |
|
|
3580 | for (i = preparecnt; i--; ) |
|
|
3581 | #if EV_EMBED_ENABLE |
|
|
3582 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3583 | #endif |
|
|
3584 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3585 | |
|
|
3586 | if (types & EV_CHECK) |
|
|
3587 | for (i = checkcnt; i--; ) |
|
|
3588 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3589 | |
|
|
3590 | if (types & EV_SIGNAL) |
|
|
3591 | for (i = 0; i < signalmax; ++i) |
|
|
3592 | for (wl = signals [i].head; wl; ) |
|
|
3593 | { |
|
|
3594 | wn = wl->next; |
|
|
3595 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3596 | wl = wn; |
|
|
3597 | } |
|
|
3598 | |
|
|
3599 | if (types & EV_CHILD) |
|
|
3600 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3601 | for (wl = childs [i]; wl; ) |
|
|
3602 | { |
|
|
3603 | wn = wl->next; |
|
|
3604 | cb (EV_A_ EV_CHILD, wl); |
|
|
3605 | wl = wn; |
|
|
3606 | } |
|
|
3607 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3608 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3609 | } |
|
|
3610 | #endif |
|
|
3611 | |
2622 | #if EV_MULTIPLICITY |
3612 | #if EV_MULTIPLICITY |
2623 | #include "ev_wrap.h" |
3613 | #include "ev_wrap.h" |
2624 | #endif |
3614 | #endif |
2625 | |
3615 | |
2626 | #ifdef __cplusplus |
3616 | #ifdef __cplusplus |