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) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
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 | |
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|
52 | # if HAVE_CLOCK_SYSCALL |
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|
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 |
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|
61 | # endif |
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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 |
… | |
… | |
96 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
97 | # endif |
111 | # endif |
98 | # endif |
112 | # endif |
99 | |
113 | |
100 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
102 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE 1 |
103 | # else |
117 | # else |
104 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
105 | # endif |
119 | # endif |
106 | # endif |
120 | # 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 | |
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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 |
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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 |
… | |
… | |
131 | |
153 | |
132 | #endif |
154 | #endif |
133 | |
155 | |
134 | #include <math.h> |
156 | #include <math.h> |
135 | #include <stdlib.h> |
157 | #include <stdlib.h> |
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|
158 | #include <string.h> |
136 | #include <fcntl.h> |
159 | #include <fcntl.h> |
137 | #include <stddef.h> |
160 | #include <stddef.h> |
138 | |
161 | |
139 | #include <stdio.h> |
162 | #include <stdio.h> |
140 | |
163 | |
141 | #include <assert.h> |
164 | #include <assert.h> |
142 | #include <errno.h> |
165 | #include <errno.h> |
143 | #include <sys/types.h> |
166 | #include <sys/types.h> |
144 | #include <time.h> |
167 | #include <time.h> |
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|
168 | #include <limits.h> |
145 | |
169 | |
146 | #include <signal.h> |
170 | #include <signal.h> |
147 | |
171 | |
148 | #ifdef EV_H |
172 | #ifdef EV_H |
149 | # include EV_H |
173 | # include EV_H |
… | |
… | |
164 | # endif |
188 | # endif |
165 | #endif |
189 | #endif |
166 | |
190 | |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
191 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
168 | |
192 | |
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|
193 | /* try to deduce the maximum number of signals on this platform */ |
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194 | #if defined (EV_NSIG) |
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195 | /* use what's provided */ |
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196 | #elif defined (NSIG) |
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197 | # define EV_NSIG (NSIG) |
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198 | #elif defined(_NSIG) |
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199 | # define EV_NSIG (_NSIG) |
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200 | #elif defined (SIGMAX) |
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201 | # define EV_NSIG (SIGMAX+1) |
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|
202 | #elif defined (SIG_MAX) |
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203 | # define EV_NSIG (SIG_MAX+1) |
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204 | #elif defined (_SIG_MAX) |
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205 | # define EV_NSIG (_SIG_MAX+1) |
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206 | #elif defined (MAXSIG) |
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207 | # define EV_NSIG (MAXSIG+1) |
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208 | #elif defined (MAX_SIG) |
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209 | # define EV_NSIG (MAX_SIG+1) |
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210 | #elif defined (SIGARRAYSIZE) |
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211 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
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212 | #elif defined (_sys_nsig) |
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213 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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214 | #else |
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215 | # error "unable to find value for NSIG, please report" |
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216 | /* to make it compile regardless, just remove the above line */ |
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217 | # define EV_NSIG 65 |
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218 | #endif |
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219 | |
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220 | #ifndef EV_USE_CLOCK_SYSCALL |
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221 | # if __linux && __GLIBC__ >= 2 |
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222 | # define EV_USE_CLOCK_SYSCALL 1 |
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223 | # else |
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224 | # define EV_USE_CLOCK_SYSCALL 0 |
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225 | # endif |
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226 | #endif |
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227 | |
169 | #ifndef EV_USE_MONOTONIC |
228 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
229 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
230 | # define EV_USE_MONOTONIC 1 |
172 | # else |
231 | # else |
173 | # define EV_USE_MONOTONIC 0 |
232 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
233 | # endif |
175 | #endif |
234 | #endif |
176 | |
235 | |
177 | #ifndef EV_USE_REALTIME |
236 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
237 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
238 | #endif |
180 | |
239 | |
181 | #ifndef EV_USE_NANOSLEEP |
240 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
241 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
242 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
244 | # else |
303 | # else |
245 | # define EV_USE_EVENTFD 0 |
304 | # define EV_USE_EVENTFD 0 |
246 | # endif |
305 | # endif |
247 | #endif |
306 | #endif |
248 | |
307 | |
|
|
308 | #ifndef EV_USE_SIGNALFD |
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|
309 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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310 | # define EV_USE_SIGNALFD 1 |
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311 | # else |
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312 | # define EV_USE_SIGNALFD 0 |
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|
313 | # endif |
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|
314 | #endif |
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315 | |
249 | #if 0 /* debugging */ |
316 | #if 0 /* debugging */ |
250 | # define EV_VERIFY 3 |
317 | # define EV_VERIFY 3 |
251 | # define EV_USE_4HEAP 1 |
318 | # define EV_USE_4HEAP 1 |
252 | # define EV_HEAP_CACHE_AT 1 |
319 | # define EV_HEAP_CACHE_AT 1 |
253 | #endif |
320 | #endif |
… | |
… | |
262 | |
329 | |
263 | #ifndef EV_HEAP_CACHE_AT |
330 | #ifndef EV_HEAP_CACHE_AT |
264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
331 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
265 | #endif |
332 | #endif |
266 | |
333 | |
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|
334 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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335 | /* which makes programs even slower. might work on other unices, too. */ |
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336 | #if EV_USE_CLOCK_SYSCALL |
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337 | # include <syscall.h> |
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338 | # ifdef SYS_clock_gettime |
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339 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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340 | # undef EV_USE_MONOTONIC |
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341 | # define EV_USE_MONOTONIC 1 |
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342 | # else |
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343 | # undef EV_USE_CLOCK_SYSCALL |
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344 | # define EV_USE_CLOCK_SYSCALL 0 |
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345 | # endif |
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346 | #endif |
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347 | |
267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
348 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
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349 | |
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350 | #ifdef _AIX |
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351 | /* AIX has a completely broken poll.h header */ |
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352 | # undef EV_USE_POLL |
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353 | # define EV_USE_POLL 0 |
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354 | #endif |
268 | |
355 | |
269 | #ifndef CLOCK_MONOTONIC |
356 | #ifndef CLOCK_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
357 | # undef EV_USE_MONOTONIC |
271 | # define EV_USE_MONOTONIC 0 |
358 | # define EV_USE_MONOTONIC 0 |
272 | #endif |
359 | #endif |
… | |
… | |
286 | # include <sys/select.h> |
373 | # include <sys/select.h> |
287 | # endif |
374 | # endif |
288 | #endif |
375 | #endif |
289 | |
376 | |
290 | #if EV_USE_INOTIFY |
377 | #if EV_USE_INOTIFY |
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378 | # include <sys/utsname.h> |
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379 | # include <sys/statfs.h> |
291 | # include <sys/inotify.h> |
380 | # include <sys/inotify.h> |
292 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
381 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
293 | # ifndef IN_DONT_FOLLOW |
382 | # ifndef IN_DONT_FOLLOW |
294 | # undef EV_USE_INOTIFY |
383 | # undef EV_USE_INOTIFY |
295 | # define EV_USE_INOTIFY 0 |
384 | # define EV_USE_INOTIFY 0 |
… | |
… | |
301 | #endif |
390 | #endif |
302 | |
391 | |
303 | #if EV_USE_EVENTFD |
392 | #if EV_USE_EVENTFD |
304 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
393 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
305 | # include <stdint.h> |
394 | # include <stdint.h> |
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395 | # ifndef EFD_NONBLOCK |
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396 | # define EFD_NONBLOCK O_NONBLOCK |
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397 | # endif |
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398 | # ifndef EFD_CLOEXEC |
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399 | # ifdef O_CLOEXEC |
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400 | # define EFD_CLOEXEC O_CLOEXEC |
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401 | # else |
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402 | # define EFD_CLOEXEC 02000000 |
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403 | # endif |
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|
404 | # endif |
306 | # ifdef __cplusplus |
405 | # ifdef __cplusplus |
307 | extern "C" { |
406 | extern "C" { |
308 | # endif |
407 | # endif |
309 | int eventfd (unsigned int initval, int flags); |
408 | int (eventfd) (unsigned int initval, int flags); |
310 | # ifdef __cplusplus |
409 | # ifdef __cplusplus |
311 | } |
410 | } |
312 | # endif |
411 | # endif |
313 | #endif |
412 | #endif |
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413 | |
|
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414 | #if EV_USE_SIGNALFD |
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415 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
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416 | # include <stdint.h> |
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417 | # ifndef SFD_NONBLOCK |
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418 | # define SFD_NONBLOCK O_NONBLOCK |
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419 | # endif |
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420 | # ifndef SFD_CLOEXEC |
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421 | # ifdef O_CLOEXEC |
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422 | # define SFD_CLOEXEC O_CLOEXEC |
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423 | # else |
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424 | # define SFD_CLOEXEC 02000000 |
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425 | # endif |
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426 | # endif |
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427 | # ifdef __cplusplus |
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428 | extern "C" { |
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429 | # endif |
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430 | int signalfd (int fd, const sigset_t *mask, int flags); |
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431 | |
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432 | struct signalfd_siginfo |
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433 | { |
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434 | uint32_t ssi_signo; |
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435 | char pad[128 - sizeof (uint32_t)]; |
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436 | }; |
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437 | # ifdef __cplusplus |
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438 | } |
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439 | # endif |
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440 | #endif |
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441 | |
314 | |
442 | |
315 | /**/ |
443 | /**/ |
316 | |
444 | |
317 | #if EV_VERIFY >= 3 |
445 | #if EV_VERIFY >= 3 |
318 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
446 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
330 | */ |
458 | */ |
331 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
459 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
332 | |
460 | |
333 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
461 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
334 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
462 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
335 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
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|
336 | |
463 | |
337 | #if __GNUC__ >= 4 |
464 | #if __GNUC__ >= 4 |
338 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
465 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
339 | # define noinline __attribute__ ((noinline)) |
466 | # define noinline __attribute__ ((noinline)) |
340 | #else |
467 | #else |
… | |
… | |
353 | # define inline_speed static noinline |
480 | # define inline_speed static noinline |
354 | #else |
481 | #else |
355 | # define inline_speed static inline |
482 | # define inline_speed static inline |
356 | #endif |
483 | #endif |
357 | |
484 | |
358 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
485 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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486 | |
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487 | #if EV_MINPRI == EV_MAXPRI |
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488 | # define ABSPRI(w) (((W)w), 0) |
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489 | #else |
359 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
490 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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|
491 | #endif |
360 | |
492 | |
361 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
493 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
362 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
494 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
363 | |
495 | |
364 | typedef ev_watcher *W; |
496 | typedef ev_watcher *W; |
… | |
… | |
366 | typedef ev_watcher_time *WT; |
498 | typedef ev_watcher_time *WT; |
367 | |
499 | |
368 | #define ev_active(w) ((W)(w))->active |
500 | #define ev_active(w) ((W)(w))->active |
369 | #define ev_at(w) ((WT)(w))->at |
501 | #define ev_at(w) ((WT)(w))->at |
370 | |
502 | |
371 | #if EV_USE_MONOTONIC |
503 | #if EV_USE_REALTIME |
372 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
504 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
373 | /* giving it a reasonably high chance of working on typical architetcures */ |
505 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
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506 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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507 | #endif |
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508 | |
|
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509 | #if EV_USE_MONOTONIC |
374 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
510 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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|
511 | #endif |
|
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512 | |
|
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513 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
514 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
515 | #endif |
|
|
516 | #ifndef EV_WIN32_HANDLE_TO_FD |
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|
517 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
518 | #endif |
|
|
519 | #ifndef EV_WIN32_CLOSE_FD |
|
|
520 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
375 | #endif |
521 | #endif |
376 | |
522 | |
377 | #ifdef _WIN32 |
523 | #ifdef _WIN32 |
378 | # include "ev_win32.c" |
524 | # include "ev_win32.c" |
379 | #endif |
525 | #endif |
… | |
… | |
387 | { |
533 | { |
388 | syserr_cb = cb; |
534 | syserr_cb = cb; |
389 | } |
535 | } |
390 | |
536 | |
391 | static void noinline |
537 | static void noinline |
392 | syserr (const char *msg) |
538 | ev_syserr (const char *msg) |
393 | { |
539 | { |
394 | if (!msg) |
540 | if (!msg) |
395 | msg = "(libev) system error"; |
541 | msg = "(libev) system error"; |
396 | |
542 | |
397 | if (syserr_cb) |
543 | if (syserr_cb) |
… | |
… | |
443 | #define ev_malloc(size) ev_realloc (0, (size)) |
589 | #define ev_malloc(size) ev_realloc (0, (size)) |
444 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
590 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
445 | |
591 | |
446 | /*****************************************************************************/ |
592 | /*****************************************************************************/ |
447 | |
593 | |
|
|
594 | /* set in reify when reification needed */ |
|
|
595 | #define EV_ANFD_REIFY 1 |
|
|
596 | |
|
|
597 | /* file descriptor info structure */ |
448 | typedef struct |
598 | typedef struct |
449 | { |
599 | { |
450 | WL head; |
600 | WL head; |
451 | unsigned char events; |
601 | unsigned char events; /* the events watched for */ |
|
|
602 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
603 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
452 | unsigned char reify; |
604 | unsigned char unused; |
|
|
605 | #if EV_USE_EPOLL |
|
|
606 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
607 | #endif |
453 | #if EV_SELECT_IS_WINSOCKET |
608 | #if EV_SELECT_IS_WINSOCKET |
454 | SOCKET handle; |
609 | SOCKET handle; |
455 | #endif |
610 | #endif |
456 | } ANFD; |
611 | } ANFD; |
457 | |
612 | |
|
|
613 | /* stores the pending event set for a given watcher */ |
458 | typedef struct |
614 | typedef struct |
459 | { |
615 | { |
460 | W w; |
616 | W w; |
461 | int events; |
617 | int events; /* the pending event set for the given watcher */ |
462 | } ANPENDING; |
618 | } ANPENDING; |
463 | |
619 | |
464 | #if EV_USE_INOTIFY |
620 | #if EV_USE_INOTIFY |
465 | /* hash table entry per inotify-id */ |
621 | /* hash table entry per inotify-id */ |
466 | typedef struct |
622 | typedef struct |
… | |
… | |
469 | } ANFS; |
625 | } ANFS; |
470 | #endif |
626 | #endif |
471 | |
627 | |
472 | /* Heap Entry */ |
628 | /* Heap Entry */ |
473 | #if EV_HEAP_CACHE_AT |
629 | #if EV_HEAP_CACHE_AT |
|
|
630 | /* a heap element */ |
474 | typedef struct { |
631 | typedef struct { |
475 | ev_tstamp at; |
632 | ev_tstamp at; |
476 | WT w; |
633 | WT w; |
477 | } ANHE; |
634 | } ANHE; |
478 | |
635 | |
479 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
636 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
480 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
637 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
481 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
638 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
482 | #else |
639 | #else |
|
|
640 | /* a heap element */ |
483 | typedef WT ANHE; |
641 | typedef WT ANHE; |
484 | |
642 | |
485 | #define ANHE_w(he) (he) |
643 | #define ANHE_w(he) (he) |
486 | #define ANHE_at(he) (he)->at |
644 | #define ANHE_at(he) (he)->at |
487 | #define ANHE_at_cache(he) |
645 | #define ANHE_at_cache(he) |
… | |
… | |
511 | |
669 | |
512 | static int ev_default_loop_ptr; |
670 | static int ev_default_loop_ptr; |
513 | |
671 | |
514 | #endif |
672 | #endif |
515 | |
673 | |
|
|
674 | #if EV_MINIMAL < 2 |
|
|
675 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
676 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
677 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
678 | #else |
|
|
679 | # define EV_RELEASE_CB (void)0 |
|
|
680 | # define EV_ACQUIRE_CB (void)0 |
|
|
681 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | #define EVUNLOOP_RECURSE 0x80 |
|
|
685 | |
516 | /*****************************************************************************/ |
686 | /*****************************************************************************/ |
517 | |
687 | |
|
|
688 | #ifndef EV_HAVE_EV_TIME |
518 | ev_tstamp |
689 | ev_tstamp |
519 | ev_time (void) |
690 | ev_time (void) |
520 | { |
691 | { |
521 | #if EV_USE_REALTIME |
692 | #if EV_USE_REALTIME |
|
|
693 | if (expect_true (have_realtime)) |
|
|
694 | { |
522 | struct timespec ts; |
695 | struct timespec ts; |
523 | clock_gettime (CLOCK_REALTIME, &ts); |
696 | clock_gettime (CLOCK_REALTIME, &ts); |
524 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
697 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
525 | #else |
698 | } |
|
|
699 | #endif |
|
|
700 | |
526 | struct timeval tv; |
701 | struct timeval tv; |
527 | gettimeofday (&tv, 0); |
702 | gettimeofday (&tv, 0); |
528 | return tv.tv_sec + tv.tv_usec * 1e-6; |
703 | return tv.tv_sec + tv.tv_usec * 1e-6; |
529 | #endif |
|
|
530 | } |
704 | } |
|
|
705 | #endif |
531 | |
706 | |
532 | ev_tstamp inline_size |
707 | inline_size ev_tstamp |
533 | get_clock (void) |
708 | get_clock (void) |
534 | { |
709 | { |
535 | #if EV_USE_MONOTONIC |
710 | #if EV_USE_MONOTONIC |
536 | if (expect_true (have_monotonic)) |
711 | if (expect_true (have_monotonic)) |
537 | { |
712 | { |
… | |
… | |
571 | |
746 | |
572 | tv.tv_sec = (time_t)delay; |
747 | tv.tv_sec = (time_t)delay; |
573 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
748 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
574 | |
749 | |
575 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
750 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
576 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
751 | /* something not guaranteed by newer posix versions, but guaranteed */ |
577 | /* by older ones */ |
752 | /* by older ones */ |
578 | select (0, 0, 0, 0, &tv); |
753 | select (0, 0, 0, 0, &tv); |
579 | #endif |
754 | #endif |
580 | } |
755 | } |
581 | } |
756 | } |
582 | |
757 | |
583 | /*****************************************************************************/ |
758 | /*****************************************************************************/ |
584 | |
759 | |
585 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
760 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
586 | |
761 | |
587 | int inline_size |
762 | /* find a suitable new size for the given array, */ |
|
|
763 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
764 | inline_size int |
588 | array_nextsize (int elem, int cur, int cnt) |
765 | array_nextsize (int elem, int cur, int cnt) |
589 | { |
766 | { |
590 | int ncur = cur + 1; |
767 | int ncur = cur + 1; |
591 | |
768 | |
592 | do |
769 | do |
… | |
… | |
609 | array_realloc (int elem, void *base, int *cur, int cnt) |
786 | array_realloc (int elem, void *base, int *cur, int cnt) |
610 | { |
787 | { |
611 | *cur = array_nextsize (elem, *cur, cnt); |
788 | *cur = array_nextsize (elem, *cur, cnt); |
612 | return ev_realloc (base, elem * *cur); |
789 | return ev_realloc (base, elem * *cur); |
613 | } |
790 | } |
|
|
791 | |
|
|
792 | #define array_init_zero(base,count) \ |
|
|
793 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
614 | |
794 | |
615 | #define array_needsize(type,base,cur,cnt,init) \ |
795 | #define array_needsize(type,base,cur,cnt,init) \ |
616 | if (expect_false ((cnt) > (cur))) \ |
796 | if (expect_false ((cnt) > (cur))) \ |
617 | { \ |
797 | { \ |
618 | int ocur_ = (cur); \ |
798 | int ocur_ = (cur); \ |
… | |
… | |
630 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
810 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
631 | } |
811 | } |
632 | #endif |
812 | #endif |
633 | |
813 | |
634 | #define array_free(stem, idx) \ |
814 | #define array_free(stem, idx) \ |
635 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
815 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
636 | |
816 | |
637 | /*****************************************************************************/ |
817 | /*****************************************************************************/ |
|
|
818 | |
|
|
819 | /* dummy callback for pending events */ |
|
|
820 | static void noinline |
|
|
821 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
822 | { |
|
|
823 | } |
638 | |
824 | |
639 | void noinline |
825 | void noinline |
640 | ev_feed_event (EV_P_ void *w, int revents) |
826 | ev_feed_event (EV_P_ void *w, int revents) |
641 | { |
827 | { |
642 | W w_ = (W)w; |
828 | W w_ = (W)w; |
… | |
… | |
651 | pendings [pri][w_->pending - 1].w = w_; |
837 | pendings [pri][w_->pending - 1].w = w_; |
652 | pendings [pri][w_->pending - 1].events = revents; |
838 | pendings [pri][w_->pending - 1].events = revents; |
653 | } |
839 | } |
654 | } |
840 | } |
655 | |
841 | |
656 | void inline_speed |
842 | inline_speed void |
|
|
843 | feed_reverse (EV_P_ W w) |
|
|
844 | { |
|
|
845 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
846 | rfeeds [rfeedcnt++] = w; |
|
|
847 | } |
|
|
848 | |
|
|
849 | inline_size void |
|
|
850 | feed_reverse_done (EV_P_ int revents) |
|
|
851 | { |
|
|
852 | do |
|
|
853 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
854 | while (rfeedcnt); |
|
|
855 | } |
|
|
856 | |
|
|
857 | inline_speed void |
657 | queue_events (EV_P_ W *events, int eventcnt, int type) |
858 | queue_events (EV_P_ W *events, int eventcnt, int type) |
658 | { |
859 | { |
659 | int i; |
860 | int i; |
660 | |
861 | |
661 | for (i = 0; i < eventcnt; ++i) |
862 | for (i = 0; i < eventcnt; ++i) |
662 | ev_feed_event (EV_A_ events [i], type); |
863 | ev_feed_event (EV_A_ events [i], type); |
663 | } |
864 | } |
664 | |
865 | |
665 | /*****************************************************************************/ |
866 | /*****************************************************************************/ |
666 | |
867 | |
667 | void inline_size |
868 | inline_speed void |
668 | anfds_init (ANFD *base, int count) |
|
|
669 | { |
|
|
670 | while (count--) |
|
|
671 | { |
|
|
672 | base->head = 0; |
|
|
673 | base->events = EV_NONE; |
|
|
674 | base->reify = 0; |
|
|
675 | |
|
|
676 | ++base; |
|
|
677 | } |
|
|
678 | } |
|
|
679 | |
|
|
680 | void inline_speed |
|
|
681 | fd_event (EV_P_ int fd, int revents) |
869 | fd_event_nc (EV_P_ int fd, int revents) |
682 | { |
870 | { |
683 | ANFD *anfd = anfds + fd; |
871 | ANFD *anfd = anfds + fd; |
684 | ev_io *w; |
872 | ev_io *w; |
685 | |
873 | |
686 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
874 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
690 | if (ev) |
878 | if (ev) |
691 | ev_feed_event (EV_A_ (W)w, ev); |
879 | ev_feed_event (EV_A_ (W)w, ev); |
692 | } |
880 | } |
693 | } |
881 | } |
694 | |
882 | |
|
|
883 | /* do not submit kernel events for fds that have reify set */ |
|
|
884 | /* because that means they changed while we were polling for new events */ |
|
|
885 | inline_speed void |
|
|
886 | fd_event (EV_P_ int fd, int revents) |
|
|
887 | { |
|
|
888 | ANFD *anfd = anfds + fd; |
|
|
889 | |
|
|
890 | if (expect_true (!anfd->reify)) |
|
|
891 | fd_event_nc (EV_A_ fd, revents); |
|
|
892 | } |
|
|
893 | |
695 | void |
894 | void |
696 | ev_feed_fd_event (EV_P_ int fd, int revents) |
895 | ev_feed_fd_event (EV_P_ int fd, int revents) |
697 | { |
896 | { |
698 | if (fd >= 0 && fd < anfdmax) |
897 | if (fd >= 0 && fd < anfdmax) |
699 | fd_event (EV_A_ fd, revents); |
898 | fd_event_nc (EV_A_ fd, revents); |
700 | } |
899 | } |
701 | |
900 | |
702 | void inline_size |
901 | /* make sure the external fd watch events are in-sync */ |
|
|
902 | /* with the kernel/libev internal state */ |
|
|
903 | inline_size void |
703 | fd_reify (EV_P) |
904 | fd_reify (EV_P) |
704 | { |
905 | { |
705 | int i; |
906 | int i; |
706 | |
907 | |
707 | for (i = 0; i < fdchangecnt; ++i) |
908 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
717 | |
918 | |
718 | #if EV_SELECT_IS_WINSOCKET |
919 | #if EV_SELECT_IS_WINSOCKET |
719 | if (events) |
920 | if (events) |
720 | { |
921 | { |
721 | unsigned long arg; |
922 | unsigned long arg; |
722 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
723 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
923 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
724 | #else |
|
|
725 | anfd->handle = _get_osfhandle (fd); |
|
|
726 | #endif |
|
|
727 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
924 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
728 | } |
925 | } |
729 | #endif |
926 | #endif |
730 | |
927 | |
731 | { |
928 | { |
732 | unsigned char o_events = anfd->events; |
929 | unsigned char o_events = anfd->events; |
733 | unsigned char o_reify = anfd->reify; |
930 | unsigned char o_reify = anfd->reify; |
734 | |
931 | |
735 | anfd->reify = 0; |
932 | anfd->reify = 0; |
736 | anfd->events = events; |
933 | anfd->events = events; |
737 | |
934 | |
738 | if (o_events != events || o_reify & EV_IOFDSET) |
935 | if (o_events != events || o_reify & EV__IOFDSET) |
739 | backend_modify (EV_A_ fd, o_events, events); |
936 | backend_modify (EV_A_ fd, o_events, events); |
740 | } |
937 | } |
741 | } |
938 | } |
742 | |
939 | |
743 | fdchangecnt = 0; |
940 | fdchangecnt = 0; |
744 | } |
941 | } |
745 | |
942 | |
746 | void inline_size |
943 | /* something about the given fd changed */ |
|
|
944 | inline_size void |
747 | fd_change (EV_P_ int fd, int flags) |
945 | fd_change (EV_P_ int fd, int flags) |
748 | { |
946 | { |
749 | unsigned char reify = anfds [fd].reify; |
947 | unsigned char reify = anfds [fd].reify; |
750 | anfds [fd].reify |= flags; |
948 | anfds [fd].reify |= flags; |
751 | |
949 | |
… | |
… | |
755 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
953 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
756 | fdchanges [fdchangecnt - 1] = fd; |
954 | fdchanges [fdchangecnt - 1] = fd; |
757 | } |
955 | } |
758 | } |
956 | } |
759 | |
957 | |
760 | void inline_speed |
958 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
959 | inline_speed void |
761 | fd_kill (EV_P_ int fd) |
960 | fd_kill (EV_P_ int fd) |
762 | { |
961 | { |
763 | ev_io *w; |
962 | ev_io *w; |
764 | |
963 | |
765 | while ((w = (ev_io *)anfds [fd].head)) |
964 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
767 | ev_io_stop (EV_A_ w); |
966 | ev_io_stop (EV_A_ w); |
768 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
967 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
769 | } |
968 | } |
770 | } |
969 | } |
771 | |
970 | |
772 | int inline_size |
971 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
972 | inline_size int |
773 | fd_valid (int fd) |
973 | fd_valid (int fd) |
774 | { |
974 | { |
775 | #ifdef _WIN32 |
975 | #ifdef _WIN32 |
776 | return _get_osfhandle (fd) != -1; |
976 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
777 | #else |
977 | #else |
778 | return fcntl (fd, F_GETFD) != -1; |
978 | return fcntl (fd, F_GETFD) != -1; |
779 | #endif |
979 | #endif |
780 | } |
980 | } |
781 | |
981 | |
… | |
… | |
799 | |
999 | |
800 | for (fd = anfdmax; fd--; ) |
1000 | for (fd = anfdmax; fd--; ) |
801 | if (anfds [fd].events) |
1001 | if (anfds [fd].events) |
802 | { |
1002 | { |
803 | fd_kill (EV_A_ fd); |
1003 | fd_kill (EV_A_ fd); |
804 | return; |
1004 | break; |
805 | } |
1005 | } |
806 | } |
1006 | } |
807 | |
1007 | |
808 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1008 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
809 | static void noinline |
1009 | static void noinline |
… | |
… | |
813 | |
1013 | |
814 | for (fd = 0; fd < anfdmax; ++fd) |
1014 | for (fd = 0; fd < anfdmax; ++fd) |
815 | if (anfds [fd].events) |
1015 | if (anfds [fd].events) |
816 | { |
1016 | { |
817 | anfds [fd].events = 0; |
1017 | anfds [fd].events = 0; |
|
|
1018 | anfds [fd].emask = 0; |
818 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1019 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
819 | } |
1020 | } |
820 | } |
1021 | } |
821 | |
1022 | |
822 | /*****************************************************************************/ |
1023 | /*****************************************************************************/ |
823 | |
1024 | |
… | |
… | |
839 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1040 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
840 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1041 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
841 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1042 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
842 | |
1043 | |
843 | /* away from the root */ |
1044 | /* away from the root */ |
844 | void inline_speed |
1045 | inline_speed void |
845 | downheap (ANHE *heap, int N, int k) |
1046 | downheap (ANHE *heap, int N, int k) |
846 | { |
1047 | { |
847 | ANHE he = heap [k]; |
1048 | ANHE he = heap [k]; |
848 | ANHE *E = heap + N + HEAP0; |
1049 | ANHE *E = heap + N + HEAP0; |
849 | |
1050 | |
… | |
… | |
889 | #define HEAP0 1 |
1090 | #define HEAP0 1 |
890 | #define HPARENT(k) ((k) >> 1) |
1091 | #define HPARENT(k) ((k) >> 1) |
891 | #define UPHEAP_DONE(p,k) (!(p)) |
1092 | #define UPHEAP_DONE(p,k) (!(p)) |
892 | |
1093 | |
893 | /* away from the root */ |
1094 | /* away from the root */ |
894 | void inline_speed |
1095 | inline_speed void |
895 | downheap (ANHE *heap, int N, int k) |
1096 | downheap (ANHE *heap, int N, int k) |
896 | { |
1097 | { |
897 | ANHE he = heap [k]; |
1098 | ANHE he = heap [k]; |
898 | |
1099 | |
899 | for (;;) |
1100 | for (;;) |
900 | { |
1101 | { |
901 | int c = k << 1; |
1102 | int c = k << 1; |
902 | |
1103 | |
903 | if (c > N + HEAP0 - 1) |
1104 | if (c >= N + HEAP0) |
904 | break; |
1105 | break; |
905 | |
1106 | |
906 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1107 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
907 | ? 1 : 0; |
1108 | ? 1 : 0; |
908 | |
1109 | |
… | |
… | |
919 | ev_active (ANHE_w (he)) = k; |
1120 | ev_active (ANHE_w (he)) = k; |
920 | } |
1121 | } |
921 | #endif |
1122 | #endif |
922 | |
1123 | |
923 | /* towards the root */ |
1124 | /* towards the root */ |
924 | void inline_speed |
1125 | inline_speed void |
925 | upheap (ANHE *heap, int k) |
1126 | upheap (ANHE *heap, int k) |
926 | { |
1127 | { |
927 | ANHE he = heap [k]; |
1128 | ANHE he = heap [k]; |
928 | |
1129 | |
929 | for (;;) |
1130 | for (;;) |
… | |
… | |
940 | |
1141 | |
941 | heap [k] = he; |
1142 | heap [k] = he; |
942 | ev_active (ANHE_w (he)) = k; |
1143 | ev_active (ANHE_w (he)) = k; |
943 | } |
1144 | } |
944 | |
1145 | |
945 | void inline_size |
1146 | /* move an element suitably so it is in a correct place */ |
|
|
1147 | inline_size void |
946 | adjustheap (ANHE *heap, int N, int k) |
1148 | adjustheap (ANHE *heap, int N, int k) |
947 | { |
1149 | { |
948 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1150 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
949 | upheap (heap, k); |
1151 | upheap (heap, k); |
950 | else |
1152 | else |
951 | downheap (heap, N, k); |
1153 | downheap (heap, N, k); |
952 | } |
1154 | } |
953 | |
1155 | |
954 | /* rebuild the heap: this function is used only once and executed rarely */ |
1156 | /* rebuild the heap: this function is used only once and executed rarely */ |
955 | void inline_size |
1157 | inline_size void |
956 | reheap (ANHE *heap, int N) |
1158 | reheap (ANHE *heap, int N) |
957 | { |
1159 | { |
958 | int i; |
1160 | int i; |
959 | |
1161 | |
960 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1162 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
963 | upheap (heap, i + HEAP0); |
1165 | upheap (heap, i + HEAP0); |
964 | } |
1166 | } |
965 | |
1167 | |
966 | /*****************************************************************************/ |
1168 | /*****************************************************************************/ |
967 | |
1169 | |
|
|
1170 | /* associate signal watchers to a signal signal */ |
968 | typedef struct |
1171 | typedef struct |
969 | { |
1172 | { |
|
|
1173 | EV_ATOMIC_T pending; |
|
|
1174 | #if EV_MULTIPLICITY |
|
|
1175 | EV_P; |
|
|
1176 | #endif |
970 | WL head; |
1177 | WL head; |
971 | EV_ATOMIC_T gotsig; |
|
|
972 | } ANSIG; |
1178 | } ANSIG; |
973 | |
1179 | |
974 | static ANSIG *signals; |
1180 | static ANSIG signals [EV_NSIG - 1]; |
975 | static int signalmax; |
|
|
976 | |
|
|
977 | static EV_ATOMIC_T gotsig; |
|
|
978 | |
|
|
979 | void inline_size |
|
|
980 | signals_init (ANSIG *base, int count) |
|
|
981 | { |
|
|
982 | while (count--) |
|
|
983 | { |
|
|
984 | base->head = 0; |
|
|
985 | base->gotsig = 0; |
|
|
986 | |
|
|
987 | ++base; |
|
|
988 | } |
|
|
989 | } |
|
|
990 | |
1181 | |
991 | /*****************************************************************************/ |
1182 | /*****************************************************************************/ |
992 | |
1183 | |
993 | void inline_speed |
1184 | /* used to prepare libev internal fd's */ |
|
|
1185 | /* this is not fork-safe */ |
|
|
1186 | inline_speed void |
994 | fd_intern (int fd) |
1187 | fd_intern (int fd) |
995 | { |
1188 | { |
996 | #ifdef _WIN32 |
1189 | #ifdef _WIN32 |
997 | unsigned long arg = 1; |
1190 | unsigned long arg = 1; |
998 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1191 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
999 | #else |
1192 | #else |
1000 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1193 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1001 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1194 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1002 | #endif |
1195 | #endif |
1003 | } |
1196 | } |
1004 | |
1197 | |
1005 | static void noinline |
1198 | static void noinline |
1006 | evpipe_init (EV_P) |
1199 | evpipe_init (EV_P) |
1007 | { |
1200 | { |
1008 | if (!ev_is_active (&pipeev)) |
1201 | if (!ev_is_active (&pipe_w)) |
1009 | { |
1202 | { |
1010 | #if EV_USE_EVENTFD |
1203 | #if EV_USE_EVENTFD |
|
|
1204 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1205 | if (evfd < 0 && errno == EINVAL) |
1011 | if ((evfd = eventfd (0, 0)) >= 0) |
1206 | evfd = eventfd (0, 0); |
|
|
1207 | |
|
|
1208 | if (evfd >= 0) |
1012 | { |
1209 | { |
1013 | evpipe [0] = -1; |
1210 | evpipe [0] = -1; |
1014 | fd_intern (evfd); |
1211 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1015 | ev_io_set (&pipeev, evfd, EV_READ); |
1212 | ev_io_set (&pipe_w, evfd, EV_READ); |
1016 | } |
1213 | } |
1017 | else |
1214 | else |
1018 | #endif |
1215 | #endif |
1019 | { |
1216 | { |
1020 | while (pipe (evpipe)) |
1217 | while (pipe (evpipe)) |
1021 | syserr ("(libev) error creating signal/async pipe"); |
1218 | ev_syserr ("(libev) error creating signal/async pipe"); |
1022 | |
1219 | |
1023 | fd_intern (evpipe [0]); |
1220 | fd_intern (evpipe [0]); |
1024 | fd_intern (evpipe [1]); |
1221 | fd_intern (evpipe [1]); |
1025 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1222 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1026 | } |
1223 | } |
1027 | |
1224 | |
1028 | ev_io_start (EV_A_ &pipeev); |
1225 | ev_io_start (EV_A_ &pipe_w); |
1029 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1226 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1030 | } |
1227 | } |
1031 | } |
1228 | } |
1032 | |
1229 | |
1033 | void inline_size |
1230 | inline_size void |
1034 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1231 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1035 | { |
1232 | { |
1036 | if (!*flag) |
1233 | if (!*flag) |
1037 | { |
1234 | { |
1038 | int old_errno = errno; /* save errno because write might clobber it */ |
1235 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1051 | |
1248 | |
1052 | errno = old_errno; |
1249 | errno = old_errno; |
1053 | } |
1250 | } |
1054 | } |
1251 | } |
1055 | |
1252 | |
|
|
1253 | /* called whenever the libev signal pipe */ |
|
|
1254 | /* got some events (signal, async) */ |
1056 | static void |
1255 | static void |
1057 | pipecb (EV_P_ ev_io *iow, int revents) |
1256 | pipecb (EV_P_ ev_io *iow, int revents) |
1058 | { |
1257 | { |
|
|
1258 | int i; |
|
|
1259 | |
1059 | #if EV_USE_EVENTFD |
1260 | #if EV_USE_EVENTFD |
1060 | if (evfd >= 0) |
1261 | if (evfd >= 0) |
1061 | { |
1262 | { |
1062 | uint64_t counter; |
1263 | uint64_t counter; |
1063 | read (evfd, &counter, sizeof (uint64_t)); |
1264 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1067 | { |
1268 | { |
1068 | char dummy; |
1269 | char dummy; |
1069 | read (evpipe [0], &dummy, 1); |
1270 | read (evpipe [0], &dummy, 1); |
1070 | } |
1271 | } |
1071 | |
1272 | |
1072 | if (gotsig && ev_is_default_loop (EV_A)) |
1273 | if (sig_pending) |
1073 | { |
1274 | { |
1074 | int signum; |
1275 | sig_pending = 0; |
1075 | gotsig = 0; |
|
|
1076 | |
1276 | |
1077 | for (signum = signalmax; signum--; ) |
1277 | for (i = EV_NSIG - 1; i--; ) |
1078 | if (signals [signum].gotsig) |
1278 | if (expect_false (signals [i].pending)) |
1079 | ev_feed_signal_event (EV_A_ signum + 1); |
1279 | ev_feed_signal_event (EV_A_ i + 1); |
1080 | } |
1280 | } |
1081 | |
1281 | |
1082 | #if EV_ASYNC_ENABLE |
1282 | #if EV_ASYNC_ENABLE |
1083 | if (gotasync) |
1283 | if (async_pending) |
1084 | { |
1284 | { |
1085 | int i; |
1285 | async_pending = 0; |
1086 | gotasync = 0; |
|
|
1087 | |
1286 | |
1088 | for (i = asynccnt; i--; ) |
1287 | for (i = asynccnt; i--; ) |
1089 | if (asyncs [i]->sent) |
1288 | if (asyncs [i]->sent) |
1090 | { |
1289 | { |
1091 | asyncs [i]->sent = 0; |
1290 | asyncs [i]->sent = 0; |
… | |
… | |
1099 | |
1298 | |
1100 | static void |
1299 | static void |
1101 | ev_sighandler (int signum) |
1300 | ev_sighandler (int signum) |
1102 | { |
1301 | { |
1103 | #if EV_MULTIPLICITY |
1302 | #if EV_MULTIPLICITY |
1104 | struct ev_loop *loop = &default_loop_struct; |
1303 | EV_P = signals [signum - 1].loop; |
1105 | #endif |
1304 | #endif |
1106 | |
1305 | |
1107 | #if _WIN32 |
1306 | #ifdef _WIN32 |
1108 | signal (signum, ev_sighandler); |
1307 | signal (signum, ev_sighandler); |
1109 | #endif |
1308 | #endif |
1110 | |
1309 | |
1111 | signals [signum - 1].gotsig = 1; |
1310 | signals [signum - 1].pending = 1; |
1112 | evpipe_write (EV_A_ &gotsig); |
1311 | evpipe_write (EV_A_ &sig_pending); |
1113 | } |
1312 | } |
1114 | |
1313 | |
1115 | void noinline |
1314 | void noinline |
1116 | ev_feed_signal_event (EV_P_ int signum) |
1315 | ev_feed_signal_event (EV_P_ int signum) |
1117 | { |
1316 | { |
1118 | WL w; |
1317 | WL w; |
1119 | |
1318 | |
|
|
1319 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1320 | return; |
|
|
1321 | |
|
|
1322 | --signum; |
|
|
1323 | |
1120 | #if EV_MULTIPLICITY |
1324 | #if EV_MULTIPLICITY |
1121 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1325 | /* it is permissible to try to feed a signal to the wrong loop */ |
1122 | #endif |
1326 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1123 | |
1327 | |
1124 | --signum; |
1328 | if (expect_false (signals [signum].loop != EV_A)) |
1125 | |
|
|
1126 | if (signum < 0 || signum >= signalmax) |
|
|
1127 | return; |
1329 | return; |
|
|
1330 | #endif |
1128 | |
1331 | |
1129 | signals [signum].gotsig = 0; |
1332 | signals [signum].pending = 0; |
1130 | |
1333 | |
1131 | for (w = signals [signum].head; w; w = w->next) |
1334 | for (w = signals [signum].head; w; w = w->next) |
1132 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1335 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1133 | } |
1336 | } |
1134 | |
1337 | |
|
|
1338 | #if EV_USE_SIGNALFD |
|
|
1339 | static void |
|
|
1340 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1341 | { |
|
|
1342 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1343 | |
|
|
1344 | for (;;) |
|
|
1345 | { |
|
|
1346 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1347 | |
|
|
1348 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1349 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1350 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1351 | |
|
|
1352 | if (res < (ssize_t)sizeof (si)) |
|
|
1353 | break; |
|
|
1354 | } |
|
|
1355 | } |
|
|
1356 | #endif |
|
|
1357 | |
1135 | /*****************************************************************************/ |
1358 | /*****************************************************************************/ |
1136 | |
1359 | |
1137 | static WL childs [EV_PID_HASHSIZE]; |
1360 | static WL childs [EV_PID_HASHSIZE]; |
1138 | |
1361 | |
1139 | #ifndef _WIN32 |
1362 | #ifndef _WIN32 |
… | |
… | |
1142 | |
1365 | |
1143 | #ifndef WIFCONTINUED |
1366 | #ifndef WIFCONTINUED |
1144 | # define WIFCONTINUED(status) 0 |
1367 | # define WIFCONTINUED(status) 0 |
1145 | #endif |
1368 | #endif |
1146 | |
1369 | |
1147 | void inline_speed |
1370 | /* handle a single child status event */ |
|
|
1371 | inline_speed void |
1148 | child_reap (EV_P_ int chain, int pid, int status) |
1372 | child_reap (EV_P_ int chain, int pid, int status) |
1149 | { |
1373 | { |
1150 | ev_child *w; |
1374 | ev_child *w; |
1151 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1375 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1152 | |
1376 | |
… | |
… | |
1165 | |
1389 | |
1166 | #ifndef WCONTINUED |
1390 | #ifndef WCONTINUED |
1167 | # define WCONTINUED 0 |
1391 | # define WCONTINUED 0 |
1168 | #endif |
1392 | #endif |
1169 | |
1393 | |
|
|
1394 | /* called on sigchld etc., calls waitpid */ |
1170 | static void |
1395 | static void |
1171 | childcb (EV_P_ ev_signal *sw, int revents) |
1396 | childcb (EV_P_ ev_signal *sw, int revents) |
1172 | { |
1397 | { |
1173 | int pid, status; |
1398 | int pid, status; |
1174 | |
1399 | |
… | |
… | |
1255 | /* kqueue is borked on everything but netbsd apparently */ |
1480 | /* kqueue is borked on everything but netbsd apparently */ |
1256 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1481 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1257 | flags &= ~EVBACKEND_KQUEUE; |
1482 | flags &= ~EVBACKEND_KQUEUE; |
1258 | #endif |
1483 | #endif |
1259 | #ifdef __APPLE__ |
1484 | #ifdef __APPLE__ |
1260 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1485 | /* only select works correctly on that "unix-certified" platform */ |
1261 | flags &= ~EVBACKEND_POLL; |
1486 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1487 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1262 | #endif |
1488 | #endif |
1263 | |
1489 | |
1264 | return flags; |
1490 | return flags; |
1265 | } |
1491 | } |
1266 | |
1492 | |
… | |
… | |
1280 | ev_backend (EV_P) |
1506 | ev_backend (EV_P) |
1281 | { |
1507 | { |
1282 | return backend; |
1508 | return backend; |
1283 | } |
1509 | } |
1284 | |
1510 | |
|
|
1511 | #if EV_MINIMAL < 2 |
1285 | unsigned int |
1512 | unsigned int |
1286 | ev_loop_count (EV_P) |
1513 | ev_loop_count (EV_P) |
1287 | { |
1514 | { |
1288 | return loop_count; |
1515 | return loop_count; |
1289 | } |
1516 | } |
1290 | |
1517 | |
|
|
1518 | unsigned int |
|
|
1519 | ev_loop_depth (EV_P) |
|
|
1520 | { |
|
|
1521 | return loop_depth; |
|
|
1522 | } |
|
|
1523 | |
1291 | void |
1524 | void |
1292 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1525 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1293 | { |
1526 | { |
1294 | io_blocktime = interval; |
1527 | io_blocktime = interval; |
1295 | } |
1528 | } |
… | |
… | |
1298 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1531 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1299 | { |
1532 | { |
1300 | timeout_blocktime = interval; |
1533 | timeout_blocktime = interval; |
1301 | } |
1534 | } |
1302 | |
1535 | |
|
|
1536 | void |
|
|
1537 | ev_set_userdata (EV_P_ void *data) |
|
|
1538 | { |
|
|
1539 | userdata = data; |
|
|
1540 | } |
|
|
1541 | |
|
|
1542 | void * |
|
|
1543 | ev_userdata (EV_P) |
|
|
1544 | { |
|
|
1545 | return userdata; |
|
|
1546 | } |
|
|
1547 | |
|
|
1548 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1549 | { |
|
|
1550 | invoke_cb = invoke_pending_cb; |
|
|
1551 | } |
|
|
1552 | |
|
|
1553 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1554 | { |
|
|
1555 | release_cb = release; |
|
|
1556 | acquire_cb = acquire; |
|
|
1557 | } |
|
|
1558 | #endif |
|
|
1559 | |
|
|
1560 | /* initialise a loop structure, must be zero-initialised */ |
1303 | static void noinline |
1561 | static void noinline |
1304 | loop_init (EV_P_ unsigned int flags) |
1562 | loop_init (EV_P_ unsigned int flags) |
1305 | { |
1563 | { |
1306 | if (!backend) |
1564 | if (!backend) |
1307 | { |
1565 | { |
|
|
1566 | #if EV_USE_REALTIME |
|
|
1567 | if (!have_realtime) |
|
|
1568 | { |
|
|
1569 | struct timespec ts; |
|
|
1570 | |
|
|
1571 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1572 | have_realtime = 1; |
|
|
1573 | } |
|
|
1574 | #endif |
|
|
1575 | |
1308 | #if EV_USE_MONOTONIC |
1576 | #if EV_USE_MONOTONIC |
|
|
1577 | if (!have_monotonic) |
1309 | { |
1578 | { |
1310 | struct timespec ts; |
1579 | struct timespec ts; |
|
|
1580 | |
1311 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1581 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1312 | have_monotonic = 1; |
1582 | have_monotonic = 1; |
1313 | } |
1583 | } |
1314 | #endif |
1584 | #endif |
|
|
1585 | |
|
|
1586 | /* pid check not overridable via env */ |
|
|
1587 | #ifndef _WIN32 |
|
|
1588 | if (flags & EVFLAG_FORKCHECK) |
|
|
1589 | curpid = getpid (); |
|
|
1590 | #endif |
|
|
1591 | |
|
|
1592 | if (!(flags & EVFLAG_NOENV) |
|
|
1593 | && !enable_secure () |
|
|
1594 | && getenv ("LIBEV_FLAGS")) |
|
|
1595 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1315 | |
1596 | |
1316 | ev_rt_now = ev_time (); |
1597 | ev_rt_now = ev_time (); |
1317 | mn_now = get_clock (); |
1598 | mn_now = get_clock (); |
1318 | now_floor = mn_now; |
1599 | now_floor = mn_now; |
1319 | rtmn_diff = ev_rt_now - mn_now; |
1600 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1601 | #if EV_MINIMAL < 2 |
|
|
1602 | invoke_cb = ev_invoke_pending; |
|
|
1603 | #endif |
1320 | |
1604 | |
1321 | io_blocktime = 0.; |
1605 | io_blocktime = 0.; |
1322 | timeout_blocktime = 0.; |
1606 | timeout_blocktime = 0.; |
1323 | backend = 0; |
1607 | backend = 0; |
1324 | backend_fd = -1; |
1608 | backend_fd = -1; |
1325 | gotasync = 0; |
1609 | sig_pending = 0; |
|
|
1610 | #if EV_ASYNC_ENABLE |
|
|
1611 | async_pending = 0; |
|
|
1612 | #endif |
1326 | #if EV_USE_INOTIFY |
1613 | #if EV_USE_INOTIFY |
1327 | fs_fd = -2; |
1614 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1328 | #endif |
1615 | #endif |
1329 | |
1616 | #if EV_USE_SIGNALFD |
1330 | /* pid check not overridable via env */ |
1617 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1331 | #ifndef _WIN32 |
|
|
1332 | if (flags & EVFLAG_FORKCHECK) |
|
|
1333 | curpid = getpid (); |
|
|
1334 | #endif |
1618 | #endif |
1335 | |
|
|
1336 | if (!(flags & EVFLAG_NOENV) |
|
|
1337 | && !enable_secure () |
|
|
1338 | && getenv ("LIBEV_FLAGS")) |
|
|
1339 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1340 | |
1619 | |
1341 | if (!(flags & 0x0000ffffU)) |
1620 | if (!(flags & 0x0000ffffU)) |
1342 | flags |= ev_recommended_backends (); |
1621 | flags |= ev_recommended_backends (); |
1343 | |
1622 | |
1344 | #if EV_USE_PORT |
1623 | #if EV_USE_PORT |
… | |
… | |
1355 | #endif |
1634 | #endif |
1356 | #if EV_USE_SELECT |
1635 | #if EV_USE_SELECT |
1357 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1636 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1358 | #endif |
1637 | #endif |
1359 | |
1638 | |
|
|
1639 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1640 | |
1360 | ev_init (&pipeev, pipecb); |
1641 | ev_init (&pipe_w, pipecb); |
1361 | ev_set_priority (&pipeev, EV_MAXPRI); |
1642 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1362 | } |
1643 | } |
1363 | } |
1644 | } |
1364 | |
1645 | |
|
|
1646 | /* free up a loop structure */ |
1365 | static void noinline |
1647 | static void noinline |
1366 | loop_destroy (EV_P) |
1648 | loop_destroy (EV_P) |
1367 | { |
1649 | { |
1368 | int i; |
1650 | int i; |
1369 | |
1651 | |
1370 | if (ev_is_active (&pipeev)) |
1652 | if (ev_is_active (&pipe_w)) |
1371 | { |
1653 | { |
1372 | ev_ref (EV_A); /* signal watcher */ |
1654 | /*ev_ref (EV_A);*/ |
1373 | ev_io_stop (EV_A_ &pipeev); |
1655 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1374 | |
1656 | |
1375 | #if EV_USE_EVENTFD |
1657 | #if EV_USE_EVENTFD |
1376 | if (evfd >= 0) |
1658 | if (evfd >= 0) |
1377 | close (evfd); |
1659 | close (evfd); |
1378 | #endif |
1660 | #endif |
1379 | |
1661 | |
1380 | if (evpipe [0] >= 0) |
1662 | if (evpipe [0] >= 0) |
1381 | { |
1663 | { |
1382 | close (evpipe [0]); |
1664 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1383 | close (evpipe [1]); |
1665 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1384 | } |
1666 | } |
1385 | } |
1667 | } |
|
|
1668 | |
|
|
1669 | #if EV_USE_SIGNALFD |
|
|
1670 | if (ev_is_active (&sigfd_w)) |
|
|
1671 | close (sigfd); |
|
|
1672 | #endif |
1386 | |
1673 | |
1387 | #if EV_USE_INOTIFY |
1674 | #if EV_USE_INOTIFY |
1388 | if (fs_fd >= 0) |
1675 | if (fs_fd >= 0) |
1389 | close (fs_fd); |
1676 | close (fs_fd); |
1390 | #endif |
1677 | #endif |
… | |
… | |
1414 | #if EV_IDLE_ENABLE |
1701 | #if EV_IDLE_ENABLE |
1415 | array_free (idle, [i]); |
1702 | array_free (idle, [i]); |
1416 | #endif |
1703 | #endif |
1417 | } |
1704 | } |
1418 | |
1705 | |
1419 | ev_free (anfds); anfdmax = 0; |
1706 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1420 | |
1707 | |
1421 | /* have to use the microsoft-never-gets-it-right macro */ |
1708 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1709 | array_free (rfeed, EMPTY); |
1422 | array_free (fdchange, EMPTY); |
1710 | array_free (fdchange, EMPTY); |
1423 | array_free (timer, EMPTY); |
1711 | array_free (timer, EMPTY); |
1424 | #if EV_PERIODIC_ENABLE |
1712 | #if EV_PERIODIC_ENABLE |
1425 | array_free (periodic, EMPTY); |
1713 | array_free (periodic, EMPTY); |
1426 | #endif |
1714 | #endif |
… | |
… | |
1435 | |
1723 | |
1436 | backend = 0; |
1724 | backend = 0; |
1437 | } |
1725 | } |
1438 | |
1726 | |
1439 | #if EV_USE_INOTIFY |
1727 | #if EV_USE_INOTIFY |
1440 | void inline_size infy_fork (EV_P); |
1728 | inline_size void infy_fork (EV_P); |
1441 | #endif |
1729 | #endif |
1442 | |
1730 | |
1443 | void inline_size |
1731 | inline_size void |
1444 | loop_fork (EV_P) |
1732 | loop_fork (EV_P) |
1445 | { |
1733 | { |
1446 | #if EV_USE_PORT |
1734 | #if EV_USE_PORT |
1447 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1735 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1448 | #endif |
1736 | #endif |
… | |
… | |
1454 | #endif |
1742 | #endif |
1455 | #if EV_USE_INOTIFY |
1743 | #if EV_USE_INOTIFY |
1456 | infy_fork (EV_A); |
1744 | infy_fork (EV_A); |
1457 | #endif |
1745 | #endif |
1458 | |
1746 | |
1459 | if (ev_is_active (&pipeev)) |
1747 | if (ev_is_active (&pipe_w)) |
1460 | { |
1748 | { |
1461 | /* this "locks" the handlers against writing to the pipe */ |
1749 | /* this "locks" the handlers against writing to the pipe */ |
1462 | /* while we modify the fd vars */ |
1750 | /* while we modify the fd vars */ |
1463 | gotsig = 1; |
1751 | sig_pending = 1; |
1464 | #if EV_ASYNC_ENABLE |
1752 | #if EV_ASYNC_ENABLE |
1465 | gotasync = 1; |
1753 | async_pending = 1; |
1466 | #endif |
1754 | #endif |
1467 | |
1755 | |
1468 | ev_ref (EV_A); |
1756 | ev_ref (EV_A); |
1469 | ev_io_stop (EV_A_ &pipeev); |
1757 | ev_io_stop (EV_A_ &pipe_w); |
1470 | |
1758 | |
1471 | #if EV_USE_EVENTFD |
1759 | #if EV_USE_EVENTFD |
1472 | if (evfd >= 0) |
1760 | if (evfd >= 0) |
1473 | close (evfd); |
1761 | close (evfd); |
1474 | #endif |
1762 | #endif |
1475 | |
1763 | |
1476 | if (evpipe [0] >= 0) |
1764 | if (evpipe [0] >= 0) |
1477 | { |
1765 | { |
1478 | close (evpipe [0]); |
1766 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1479 | close (evpipe [1]); |
1767 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1480 | } |
1768 | } |
1481 | |
1769 | |
1482 | evpipe_init (EV_A); |
1770 | evpipe_init (EV_A); |
1483 | /* now iterate over everything, in case we missed something */ |
1771 | /* now iterate over everything, in case we missed something */ |
1484 | pipecb (EV_A_ &pipeev, EV_READ); |
1772 | pipecb (EV_A_ &pipe_w, EV_READ); |
1485 | } |
1773 | } |
1486 | |
1774 | |
1487 | postfork = 0; |
1775 | postfork = 0; |
1488 | } |
1776 | } |
1489 | |
1777 | |
1490 | #if EV_MULTIPLICITY |
1778 | #if EV_MULTIPLICITY |
1491 | |
1779 | |
1492 | struct ev_loop * |
1780 | struct ev_loop * |
1493 | ev_loop_new (unsigned int flags) |
1781 | ev_loop_new (unsigned int flags) |
1494 | { |
1782 | { |
1495 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1783 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1496 | |
1784 | |
1497 | memset (loop, 0, sizeof (struct ev_loop)); |
1785 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1498 | |
|
|
1499 | loop_init (EV_A_ flags); |
1786 | loop_init (EV_A_ flags); |
1500 | |
1787 | |
1501 | if (ev_backend (EV_A)) |
1788 | if (ev_backend (EV_A)) |
1502 | return loop; |
1789 | return EV_A; |
1503 | |
1790 | |
1504 | return 0; |
1791 | return 0; |
1505 | } |
1792 | } |
1506 | |
1793 | |
1507 | void |
1794 | void |
… | |
… | |
1514 | void |
1801 | void |
1515 | ev_loop_fork (EV_P) |
1802 | ev_loop_fork (EV_P) |
1516 | { |
1803 | { |
1517 | postfork = 1; /* must be in line with ev_default_fork */ |
1804 | postfork = 1; /* must be in line with ev_default_fork */ |
1518 | } |
1805 | } |
|
|
1806 | #endif /* multiplicity */ |
1519 | |
1807 | |
1520 | #if EV_VERIFY |
1808 | #if EV_VERIFY |
1521 | static void noinline |
1809 | static void noinline |
1522 | verify_watcher (EV_P_ W w) |
1810 | verify_watcher (EV_P_ W w) |
1523 | { |
1811 | { |
1524 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1812 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1525 | |
1813 | |
1526 | if (w->pending) |
1814 | if (w->pending) |
1527 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1815 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1528 | } |
1816 | } |
1529 | |
1817 | |
1530 | static void noinline |
1818 | static void noinline |
1531 | verify_heap (EV_P_ ANHE *heap, int N) |
1819 | verify_heap (EV_P_ ANHE *heap, int N) |
1532 | { |
1820 | { |
1533 | int i; |
1821 | int i; |
1534 | |
1822 | |
1535 | for (i = HEAP0; i < N + HEAP0; ++i) |
1823 | for (i = HEAP0; i < N + HEAP0; ++i) |
1536 | { |
1824 | { |
1537 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1825 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1538 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1826 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1539 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1827 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1540 | |
1828 | |
1541 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1829 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1542 | } |
1830 | } |
1543 | } |
1831 | } |
1544 | |
1832 | |
1545 | static void noinline |
1833 | static void noinline |
1546 | array_verify (EV_P_ W *ws, int cnt) |
1834 | array_verify (EV_P_ W *ws, int cnt) |
1547 | { |
1835 | { |
1548 | while (cnt--) |
1836 | while (cnt--) |
1549 | { |
1837 | { |
1550 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1838 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1551 | verify_watcher (EV_A_ ws [cnt]); |
1839 | verify_watcher (EV_A_ ws [cnt]); |
1552 | } |
1840 | } |
1553 | } |
1841 | } |
1554 | #endif |
1842 | #endif |
1555 | |
1843 | |
|
|
1844 | #if EV_MINIMAL < 2 |
1556 | void |
1845 | void |
1557 | ev_loop_verify (EV_P) |
1846 | ev_loop_verify (EV_P) |
1558 | { |
1847 | { |
1559 | #if EV_VERIFY |
1848 | #if EV_VERIFY |
1560 | int i; |
1849 | int i; |
… | |
… | |
1562 | |
1851 | |
1563 | assert (activecnt >= -1); |
1852 | assert (activecnt >= -1); |
1564 | |
1853 | |
1565 | assert (fdchangemax >= fdchangecnt); |
1854 | assert (fdchangemax >= fdchangecnt); |
1566 | for (i = 0; i < fdchangecnt; ++i) |
1855 | for (i = 0; i < fdchangecnt; ++i) |
1567 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1856 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1568 | |
1857 | |
1569 | assert (anfdmax >= 0); |
1858 | assert (anfdmax >= 0); |
1570 | for (i = 0; i < anfdmax; ++i) |
1859 | for (i = 0; i < anfdmax; ++i) |
1571 | for (w = anfds [i].head; w; w = w->next) |
1860 | for (w = anfds [i].head; w; w = w->next) |
1572 | { |
1861 | { |
1573 | verify_watcher (EV_A_ (W)w); |
1862 | verify_watcher (EV_A_ (W)w); |
1574 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1863 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1575 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1864 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1576 | } |
1865 | } |
1577 | |
1866 | |
1578 | assert (timermax >= timercnt); |
1867 | assert (timermax >= timercnt); |
1579 | verify_heap (EV_A_ timers, timercnt); |
1868 | verify_heap (EV_A_ timers, timercnt); |
1580 | |
1869 | |
… | |
… | |
1609 | assert (checkmax >= checkcnt); |
1898 | assert (checkmax >= checkcnt); |
1610 | array_verify (EV_A_ (W *)checks, checkcnt); |
1899 | array_verify (EV_A_ (W *)checks, checkcnt); |
1611 | |
1900 | |
1612 | # if 0 |
1901 | # if 0 |
1613 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1902 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1614 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1903 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1615 | # endif |
|
|
1616 | #endif |
1904 | # endif |
|
|
1905 | #endif |
1617 | } |
1906 | } |
1618 | |
1907 | #endif |
1619 | #endif /* multiplicity */ |
|
|
1620 | |
1908 | |
1621 | #if EV_MULTIPLICITY |
1909 | #if EV_MULTIPLICITY |
1622 | struct ev_loop * |
1910 | struct ev_loop * |
1623 | ev_default_loop_init (unsigned int flags) |
1911 | ev_default_loop_init (unsigned int flags) |
1624 | #else |
1912 | #else |
… | |
… | |
1627 | #endif |
1915 | #endif |
1628 | { |
1916 | { |
1629 | if (!ev_default_loop_ptr) |
1917 | if (!ev_default_loop_ptr) |
1630 | { |
1918 | { |
1631 | #if EV_MULTIPLICITY |
1919 | #if EV_MULTIPLICITY |
1632 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1920 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1633 | #else |
1921 | #else |
1634 | ev_default_loop_ptr = 1; |
1922 | ev_default_loop_ptr = 1; |
1635 | #endif |
1923 | #endif |
1636 | |
1924 | |
1637 | loop_init (EV_A_ flags); |
1925 | loop_init (EV_A_ flags); |
… | |
… | |
1654 | |
1942 | |
1655 | void |
1943 | void |
1656 | ev_default_destroy (void) |
1944 | ev_default_destroy (void) |
1657 | { |
1945 | { |
1658 | #if EV_MULTIPLICITY |
1946 | #if EV_MULTIPLICITY |
1659 | struct ev_loop *loop = ev_default_loop_ptr; |
1947 | EV_P = ev_default_loop_ptr; |
1660 | #endif |
1948 | #endif |
|
|
1949 | |
|
|
1950 | ev_default_loop_ptr = 0; |
1661 | |
1951 | |
1662 | #ifndef _WIN32 |
1952 | #ifndef _WIN32 |
1663 | ev_ref (EV_A); /* child watcher */ |
1953 | ev_ref (EV_A); /* child watcher */ |
1664 | ev_signal_stop (EV_A_ &childev); |
1954 | ev_signal_stop (EV_A_ &childev); |
1665 | #endif |
1955 | #endif |
… | |
… | |
1669 | |
1959 | |
1670 | void |
1960 | void |
1671 | ev_default_fork (void) |
1961 | ev_default_fork (void) |
1672 | { |
1962 | { |
1673 | #if EV_MULTIPLICITY |
1963 | #if EV_MULTIPLICITY |
1674 | struct ev_loop *loop = ev_default_loop_ptr; |
1964 | EV_P = ev_default_loop_ptr; |
1675 | #endif |
1965 | #endif |
1676 | |
1966 | |
1677 | if (backend) |
|
|
1678 | postfork = 1; /* must be in line with ev_loop_fork */ |
1967 | postfork = 1; /* must be in line with ev_loop_fork */ |
1679 | } |
1968 | } |
1680 | |
1969 | |
1681 | /*****************************************************************************/ |
1970 | /*****************************************************************************/ |
1682 | |
1971 | |
1683 | void |
1972 | void |
1684 | ev_invoke (EV_P_ void *w, int revents) |
1973 | ev_invoke (EV_P_ void *w, int revents) |
1685 | { |
1974 | { |
1686 | EV_CB_INVOKE ((W)w, revents); |
1975 | EV_CB_INVOKE ((W)w, revents); |
1687 | } |
1976 | } |
1688 | |
1977 | |
1689 | void inline_speed |
1978 | unsigned int |
1690 | call_pending (EV_P) |
1979 | ev_pending_count (EV_P) |
|
|
1980 | { |
|
|
1981 | int pri; |
|
|
1982 | unsigned int count = 0; |
|
|
1983 | |
|
|
1984 | for (pri = NUMPRI; pri--; ) |
|
|
1985 | count += pendingcnt [pri]; |
|
|
1986 | |
|
|
1987 | return count; |
|
|
1988 | } |
|
|
1989 | |
|
|
1990 | void noinline |
|
|
1991 | ev_invoke_pending (EV_P) |
1691 | { |
1992 | { |
1692 | int pri; |
1993 | int pri; |
1693 | |
1994 | |
1694 | for (pri = NUMPRI; pri--; ) |
1995 | for (pri = NUMPRI; pri--; ) |
1695 | while (pendingcnt [pri]) |
1996 | while (pendingcnt [pri]) |
1696 | { |
1997 | { |
1697 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1998 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1698 | |
1999 | |
1699 | if (expect_true (p->w)) |
|
|
1700 | { |
|
|
1701 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2000 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2001 | /* ^ this is no longer true, as pending_w could be here */ |
1702 | |
2002 | |
1703 | p->w->pending = 0; |
2003 | p->w->pending = 0; |
1704 | EV_CB_INVOKE (p->w, p->events); |
2004 | EV_CB_INVOKE (p->w, p->events); |
1705 | EV_FREQUENT_CHECK; |
2005 | EV_FREQUENT_CHECK; |
1706 | } |
|
|
1707 | } |
2006 | } |
1708 | } |
2007 | } |
1709 | |
2008 | |
1710 | #if EV_IDLE_ENABLE |
2009 | #if EV_IDLE_ENABLE |
1711 | void inline_size |
2010 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2011 | /* only when higher priorities are idle" logic */ |
|
|
2012 | inline_size void |
1712 | idle_reify (EV_P) |
2013 | idle_reify (EV_P) |
1713 | { |
2014 | { |
1714 | if (expect_false (idleall)) |
2015 | if (expect_false (idleall)) |
1715 | { |
2016 | { |
1716 | int pri; |
2017 | int pri; |
… | |
… | |
1728 | } |
2029 | } |
1729 | } |
2030 | } |
1730 | } |
2031 | } |
1731 | #endif |
2032 | #endif |
1732 | |
2033 | |
1733 | void inline_size |
2034 | /* make timers pending */ |
|
|
2035 | inline_size void |
1734 | timers_reify (EV_P) |
2036 | timers_reify (EV_P) |
1735 | { |
2037 | { |
1736 | EV_FREQUENT_CHECK; |
2038 | EV_FREQUENT_CHECK; |
1737 | |
2039 | |
1738 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2040 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1739 | { |
2041 | { |
1740 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2042 | do |
1741 | |
|
|
1742 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1743 | |
|
|
1744 | /* first reschedule or stop timer */ |
|
|
1745 | if (w->repeat) |
|
|
1746 | { |
2043 | { |
|
|
2044 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2045 | |
|
|
2046 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2047 | |
|
|
2048 | /* first reschedule or stop timer */ |
|
|
2049 | if (w->repeat) |
|
|
2050 | { |
1747 | ev_at (w) += w->repeat; |
2051 | ev_at (w) += w->repeat; |
1748 | if (ev_at (w) < mn_now) |
2052 | if (ev_at (w) < mn_now) |
1749 | ev_at (w) = mn_now; |
2053 | ev_at (w) = mn_now; |
1750 | |
2054 | |
1751 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2055 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1752 | |
2056 | |
1753 | ANHE_at_cache (timers [HEAP0]); |
2057 | ANHE_at_cache (timers [HEAP0]); |
1754 | downheap (timers, timercnt, HEAP0); |
2058 | downheap (timers, timercnt, HEAP0); |
|
|
2059 | } |
|
|
2060 | else |
|
|
2061 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2062 | |
|
|
2063 | EV_FREQUENT_CHECK; |
|
|
2064 | feed_reverse (EV_A_ (W)w); |
1755 | } |
2065 | } |
1756 | else |
2066 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1757 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1758 | |
2067 | |
1759 | EV_FREQUENT_CHECK; |
|
|
1760 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2068 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1761 | } |
2069 | } |
1762 | } |
2070 | } |
1763 | |
2071 | |
1764 | #if EV_PERIODIC_ENABLE |
2072 | #if EV_PERIODIC_ENABLE |
1765 | void inline_size |
2073 | /* make periodics pending */ |
|
|
2074 | inline_size void |
1766 | periodics_reify (EV_P) |
2075 | periodics_reify (EV_P) |
1767 | { |
2076 | { |
1768 | EV_FREQUENT_CHECK; |
2077 | EV_FREQUENT_CHECK; |
1769 | |
2078 | |
1770 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2079 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1771 | { |
2080 | { |
1772 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2081 | int feed_count = 0; |
1773 | |
2082 | |
1774 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2083 | do |
1775 | |
|
|
1776 | /* first reschedule or stop timer */ |
|
|
1777 | if (w->reschedule_cb) |
|
|
1778 | { |
2084 | { |
|
|
2085 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2086 | |
|
|
2087 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2088 | |
|
|
2089 | /* first reschedule or stop timer */ |
|
|
2090 | if (w->reschedule_cb) |
|
|
2091 | { |
1779 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2092 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1780 | |
2093 | |
1781 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2094 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1782 | |
2095 | |
1783 | ANHE_at_cache (periodics [HEAP0]); |
2096 | ANHE_at_cache (periodics [HEAP0]); |
1784 | downheap (periodics, periodiccnt, HEAP0); |
2097 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2098 | } |
|
|
2099 | else if (w->interval) |
|
|
2100 | { |
|
|
2101 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2102 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2103 | /* this might happen because of floating point inexactness */ |
|
|
2104 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2105 | { |
|
|
2106 | ev_at (w) += w->interval; |
|
|
2107 | |
|
|
2108 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2109 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2110 | /* has effectively asked to get triggered more often than possible */ |
|
|
2111 | if (ev_at (w) < ev_rt_now) |
|
|
2112 | ev_at (w) = ev_rt_now; |
|
|
2113 | } |
|
|
2114 | |
|
|
2115 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2116 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2117 | } |
|
|
2118 | else |
|
|
2119 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2120 | |
|
|
2121 | EV_FREQUENT_CHECK; |
|
|
2122 | feed_reverse (EV_A_ (W)w); |
1785 | } |
2123 | } |
1786 | else if (w->interval) |
2124 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1787 | { |
|
|
1788 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1789 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1790 | /* this might happen because of floating point inexactness */ |
|
|
1791 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1792 | { |
|
|
1793 | ev_at (w) += w->interval; |
|
|
1794 | |
2125 | |
1795 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1796 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1797 | /* has effectively asked to get triggered more often than possible */ |
|
|
1798 | if (ev_at (w) < ev_rt_now) |
|
|
1799 | ev_at (w) = ev_rt_now; |
|
|
1800 | } |
|
|
1801 | |
|
|
1802 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1803 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1804 | } |
|
|
1805 | else |
|
|
1806 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1807 | |
|
|
1808 | EV_FREQUENT_CHECK; |
|
|
1809 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2126 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1810 | } |
2127 | } |
1811 | } |
2128 | } |
1812 | |
2129 | |
|
|
2130 | /* simply recalculate all periodics */ |
|
|
2131 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1813 | static void noinline |
2132 | static void noinline |
1814 | periodics_reschedule (EV_P) |
2133 | periodics_reschedule (EV_P) |
1815 | { |
2134 | { |
1816 | int i; |
2135 | int i; |
1817 | |
2136 | |
… | |
… | |
1830 | |
2149 | |
1831 | reheap (periodics, periodiccnt); |
2150 | reheap (periodics, periodiccnt); |
1832 | } |
2151 | } |
1833 | #endif |
2152 | #endif |
1834 | |
2153 | |
1835 | void inline_speed |
2154 | /* adjust all timers by a given offset */ |
|
|
2155 | static void noinline |
|
|
2156 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2157 | { |
|
|
2158 | int i; |
|
|
2159 | |
|
|
2160 | for (i = 0; i < timercnt; ++i) |
|
|
2161 | { |
|
|
2162 | ANHE *he = timers + i + HEAP0; |
|
|
2163 | ANHE_w (*he)->at += adjust; |
|
|
2164 | ANHE_at_cache (*he); |
|
|
2165 | } |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2169 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2170 | inline_speed void |
1836 | time_update (EV_P_ ev_tstamp max_block) |
2171 | time_update (EV_P_ ev_tstamp max_block) |
1837 | { |
2172 | { |
1838 | int i; |
|
|
1839 | |
|
|
1840 | #if EV_USE_MONOTONIC |
2173 | #if EV_USE_MONOTONIC |
1841 | if (expect_true (have_monotonic)) |
2174 | if (expect_true (have_monotonic)) |
1842 | { |
2175 | { |
|
|
2176 | int i; |
1843 | ev_tstamp odiff = rtmn_diff; |
2177 | ev_tstamp odiff = rtmn_diff; |
1844 | |
2178 | |
1845 | mn_now = get_clock (); |
2179 | mn_now = get_clock (); |
1846 | |
2180 | |
1847 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2181 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1873 | ev_rt_now = ev_time (); |
2207 | ev_rt_now = ev_time (); |
1874 | mn_now = get_clock (); |
2208 | mn_now = get_clock (); |
1875 | now_floor = mn_now; |
2209 | now_floor = mn_now; |
1876 | } |
2210 | } |
1877 | |
2211 | |
|
|
2212 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2213 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1878 | # if EV_PERIODIC_ENABLE |
2214 | # if EV_PERIODIC_ENABLE |
1879 | periodics_reschedule (EV_A); |
2215 | periodics_reschedule (EV_A); |
1880 | # endif |
2216 | # endif |
1881 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1882 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1883 | } |
2217 | } |
1884 | else |
2218 | else |
1885 | #endif |
2219 | #endif |
1886 | { |
2220 | { |
1887 | ev_rt_now = ev_time (); |
2221 | ev_rt_now = ev_time (); |
1888 | |
2222 | |
1889 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2223 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1890 | { |
2224 | { |
|
|
2225 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2226 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1891 | #if EV_PERIODIC_ENABLE |
2227 | #if EV_PERIODIC_ENABLE |
1892 | periodics_reschedule (EV_A); |
2228 | periodics_reschedule (EV_A); |
1893 | #endif |
2229 | #endif |
1894 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1895 | for (i = 0; i < timercnt; ++i) |
|
|
1896 | { |
|
|
1897 | ANHE *he = timers + i + HEAP0; |
|
|
1898 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1899 | ANHE_at_cache (*he); |
|
|
1900 | } |
|
|
1901 | } |
2230 | } |
1902 | |
2231 | |
1903 | mn_now = ev_rt_now; |
2232 | mn_now = ev_rt_now; |
1904 | } |
2233 | } |
1905 | } |
2234 | } |
1906 | |
2235 | |
1907 | void |
2236 | void |
1908 | ev_ref (EV_P) |
|
|
1909 | { |
|
|
1910 | ++activecnt; |
|
|
1911 | } |
|
|
1912 | |
|
|
1913 | void |
|
|
1914 | ev_unref (EV_P) |
|
|
1915 | { |
|
|
1916 | --activecnt; |
|
|
1917 | } |
|
|
1918 | |
|
|
1919 | void |
|
|
1920 | ev_now_update (EV_P) |
|
|
1921 | { |
|
|
1922 | time_update (EV_A_ 1e100); |
|
|
1923 | } |
|
|
1924 | |
|
|
1925 | static int loop_done; |
|
|
1926 | |
|
|
1927 | void |
|
|
1928 | ev_loop (EV_P_ int flags) |
2237 | ev_loop (EV_P_ int flags) |
1929 | { |
2238 | { |
|
|
2239 | #if EV_MINIMAL < 2 |
|
|
2240 | ++loop_depth; |
|
|
2241 | #endif |
|
|
2242 | |
|
|
2243 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2244 | |
1930 | loop_done = EVUNLOOP_CANCEL; |
2245 | loop_done = EVUNLOOP_CANCEL; |
1931 | |
2246 | |
1932 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2247 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1933 | |
2248 | |
1934 | do |
2249 | do |
1935 | { |
2250 | { |
1936 | #if EV_VERIFY >= 2 |
2251 | #if EV_VERIFY >= 2 |
1937 | ev_loop_verify (EV_A); |
2252 | ev_loop_verify (EV_A); |
… | |
… | |
1950 | /* we might have forked, so queue fork handlers */ |
2265 | /* we might have forked, so queue fork handlers */ |
1951 | if (expect_false (postfork)) |
2266 | if (expect_false (postfork)) |
1952 | if (forkcnt) |
2267 | if (forkcnt) |
1953 | { |
2268 | { |
1954 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2269 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1955 | call_pending (EV_A); |
2270 | EV_INVOKE_PENDING; |
1956 | } |
2271 | } |
1957 | #endif |
2272 | #endif |
1958 | |
2273 | |
1959 | /* queue prepare watchers (and execute them) */ |
2274 | /* queue prepare watchers (and execute them) */ |
1960 | if (expect_false (preparecnt)) |
2275 | if (expect_false (preparecnt)) |
1961 | { |
2276 | { |
1962 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2277 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1963 | call_pending (EV_A); |
2278 | EV_INVOKE_PENDING; |
1964 | } |
2279 | } |
1965 | |
2280 | |
1966 | if (expect_false (!activecnt)) |
2281 | if (expect_false (loop_done)) |
1967 | break; |
2282 | break; |
1968 | |
2283 | |
1969 | /* we might have forked, so reify kernel state if necessary */ |
2284 | /* we might have forked, so reify kernel state if necessary */ |
1970 | if (expect_false (postfork)) |
2285 | if (expect_false (postfork)) |
1971 | loop_fork (EV_A); |
2286 | loop_fork (EV_A); |
… | |
… | |
1978 | ev_tstamp waittime = 0.; |
2293 | ev_tstamp waittime = 0.; |
1979 | ev_tstamp sleeptime = 0.; |
2294 | ev_tstamp sleeptime = 0.; |
1980 | |
2295 | |
1981 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2296 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1982 | { |
2297 | { |
|
|
2298 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2299 | ev_tstamp prev_mn_now = mn_now; |
|
|
2300 | |
1983 | /* update time to cancel out callback processing overhead */ |
2301 | /* update time to cancel out callback processing overhead */ |
1984 | time_update (EV_A_ 1e100); |
2302 | time_update (EV_A_ 1e100); |
1985 | |
2303 | |
1986 | waittime = MAX_BLOCKTIME; |
2304 | waittime = MAX_BLOCKTIME; |
1987 | |
2305 | |
… | |
… | |
1997 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2315 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1998 | if (waittime > to) waittime = to; |
2316 | if (waittime > to) waittime = to; |
1999 | } |
2317 | } |
2000 | #endif |
2318 | #endif |
2001 | |
2319 | |
|
|
2320 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2002 | if (expect_false (waittime < timeout_blocktime)) |
2321 | if (expect_false (waittime < timeout_blocktime)) |
2003 | waittime = timeout_blocktime; |
2322 | waittime = timeout_blocktime; |
2004 | |
2323 | |
2005 | sleeptime = waittime - backend_fudge; |
2324 | /* extra check because io_blocktime is commonly 0 */ |
2006 | |
|
|
2007 | if (expect_true (sleeptime > io_blocktime)) |
2325 | if (expect_false (io_blocktime)) |
2008 | sleeptime = io_blocktime; |
|
|
2009 | |
|
|
2010 | if (sleeptime) |
|
|
2011 | { |
2326 | { |
|
|
2327 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2328 | |
|
|
2329 | if (sleeptime > waittime - backend_fudge) |
|
|
2330 | sleeptime = waittime - backend_fudge; |
|
|
2331 | |
|
|
2332 | if (expect_true (sleeptime > 0.)) |
|
|
2333 | { |
2012 | ev_sleep (sleeptime); |
2334 | ev_sleep (sleeptime); |
2013 | waittime -= sleeptime; |
2335 | waittime -= sleeptime; |
|
|
2336 | } |
2014 | } |
2337 | } |
2015 | } |
2338 | } |
2016 | |
2339 | |
|
|
2340 | #if EV_MINIMAL < 2 |
2017 | ++loop_count; |
2341 | ++loop_count; |
|
|
2342 | #endif |
|
|
2343 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2018 | backend_poll (EV_A_ waittime); |
2344 | backend_poll (EV_A_ waittime); |
|
|
2345 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2019 | |
2346 | |
2020 | /* update ev_rt_now, do magic */ |
2347 | /* update ev_rt_now, do magic */ |
2021 | time_update (EV_A_ waittime + sleeptime); |
2348 | time_update (EV_A_ waittime + sleeptime); |
2022 | } |
2349 | } |
2023 | |
2350 | |
… | |
… | |
2034 | |
2361 | |
2035 | /* queue check watchers, to be executed first */ |
2362 | /* queue check watchers, to be executed first */ |
2036 | if (expect_false (checkcnt)) |
2363 | if (expect_false (checkcnt)) |
2037 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2364 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2038 | |
2365 | |
2039 | call_pending (EV_A); |
2366 | EV_INVOKE_PENDING; |
2040 | } |
2367 | } |
2041 | while (expect_true ( |
2368 | while (expect_true ( |
2042 | activecnt |
2369 | activecnt |
2043 | && !loop_done |
2370 | && !loop_done |
2044 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2371 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2045 | )); |
2372 | )); |
2046 | |
2373 | |
2047 | if (loop_done == EVUNLOOP_ONE) |
2374 | if (loop_done == EVUNLOOP_ONE) |
2048 | loop_done = EVUNLOOP_CANCEL; |
2375 | loop_done = EVUNLOOP_CANCEL; |
|
|
2376 | |
|
|
2377 | #if EV_MINIMAL < 2 |
|
|
2378 | --loop_depth; |
|
|
2379 | #endif |
2049 | } |
2380 | } |
2050 | |
2381 | |
2051 | void |
2382 | void |
2052 | ev_unloop (EV_P_ int how) |
2383 | ev_unloop (EV_P_ int how) |
2053 | { |
2384 | { |
2054 | loop_done = how; |
2385 | loop_done = how; |
2055 | } |
2386 | } |
2056 | |
2387 | |
|
|
2388 | void |
|
|
2389 | ev_ref (EV_P) |
|
|
2390 | { |
|
|
2391 | ++activecnt; |
|
|
2392 | } |
|
|
2393 | |
|
|
2394 | void |
|
|
2395 | ev_unref (EV_P) |
|
|
2396 | { |
|
|
2397 | --activecnt; |
|
|
2398 | } |
|
|
2399 | |
|
|
2400 | void |
|
|
2401 | ev_now_update (EV_P) |
|
|
2402 | { |
|
|
2403 | time_update (EV_A_ 1e100); |
|
|
2404 | } |
|
|
2405 | |
|
|
2406 | void |
|
|
2407 | ev_suspend (EV_P) |
|
|
2408 | { |
|
|
2409 | ev_now_update (EV_A); |
|
|
2410 | } |
|
|
2411 | |
|
|
2412 | void |
|
|
2413 | ev_resume (EV_P) |
|
|
2414 | { |
|
|
2415 | ev_tstamp mn_prev = mn_now; |
|
|
2416 | |
|
|
2417 | ev_now_update (EV_A); |
|
|
2418 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2419 | #if EV_PERIODIC_ENABLE |
|
|
2420 | /* TODO: really do this? */ |
|
|
2421 | periodics_reschedule (EV_A); |
|
|
2422 | #endif |
|
|
2423 | } |
|
|
2424 | |
2057 | /*****************************************************************************/ |
2425 | /*****************************************************************************/ |
|
|
2426 | /* singly-linked list management, used when the expected list length is short */ |
2058 | |
2427 | |
2059 | void inline_size |
2428 | inline_size void |
2060 | wlist_add (WL *head, WL elem) |
2429 | wlist_add (WL *head, WL elem) |
2061 | { |
2430 | { |
2062 | elem->next = *head; |
2431 | elem->next = *head; |
2063 | *head = elem; |
2432 | *head = elem; |
2064 | } |
2433 | } |
2065 | |
2434 | |
2066 | void inline_size |
2435 | inline_size void |
2067 | wlist_del (WL *head, WL elem) |
2436 | wlist_del (WL *head, WL elem) |
2068 | { |
2437 | { |
2069 | while (*head) |
2438 | while (*head) |
2070 | { |
2439 | { |
2071 | if (*head == elem) |
2440 | if (expect_true (*head == elem)) |
2072 | { |
2441 | { |
2073 | *head = elem->next; |
2442 | *head = elem->next; |
2074 | return; |
2443 | break; |
2075 | } |
2444 | } |
2076 | |
2445 | |
2077 | head = &(*head)->next; |
2446 | head = &(*head)->next; |
2078 | } |
2447 | } |
2079 | } |
2448 | } |
2080 | |
2449 | |
2081 | void inline_speed |
2450 | /* internal, faster, version of ev_clear_pending */ |
|
|
2451 | inline_speed void |
2082 | clear_pending (EV_P_ W w) |
2452 | clear_pending (EV_P_ W w) |
2083 | { |
2453 | { |
2084 | if (w->pending) |
2454 | if (w->pending) |
2085 | { |
2455 | { |
2086 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2456 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2087 | w->pending = 0; |
2457 | w->pending = 0; |
2088 | } |
2458 | } |
2089 | } |
2459 | } |
2090 | |
2460 | |
2091 | int |
2461 | int |
… | |
… | |
2095 | int pending = w_->pending; |
2465 | int pending = w_->pending; |
2096 | |
2466 | |
2097 | if (expect_true (pending)) |
2467 | if (expect_true (pending)) |
2098 | { |
2468 | { |
2099 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2469 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2470 | p->w = (W)&pending_w; |
2100 | w_->pending = 0; |
2471 | w_->pending = 0; |
2101 | p->w = 0; |
|
|
2102 | return p->events; |
2472 | return p->events; |
2103 | } |
2473 | } |
2104 | else |
2474 | else |
2105 | return 0; |
2475 | return 0; |
2106 | } |
2476 | } |
2107 | |
2477 | |
2108 | void inline_size |
2478 | inline_size void |
2109 | pri_adjust (EV_P_ W w) |
2479 | pri_adjust (EV_P_ W w) |
2110 | { |
2480 | { |
2111 | int pri = w->priority; |
2481 | int pri = ev_priority (w); |
2112 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2482 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2113 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2483 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2114 | w->priority = pri; |
2484 | ev_set_priority (w, pri); |
2115 | } |
2485 | } |
2116 | |
2486 | |
2117 | void inline_speed |
2487 | inline_speed void |
2118 | ev_start (EV_P_ W w, int active) |
2488 | ev_start (EV_P_ W w, int active) |
2119 | { |
2489 | { |
2120 | pri_adjust (EV_A_ w); |
2490 | pri_adjust (EV_A_ w); |
2121 | w->active = active; |
2491 | w->active = active; |
2122 | ev_ref (EV_A); |
2492 | ev_ref (EV_A); |
2123 | } |
2493 | } |
2124 | |
2494 | |
2125 | void inline_size |
2495 | inline_size void |
2126 | ev_stop (EV_P_ W w) |
2496 | ev_stop (EV_P_ W w) |
2127 | { |
2497 | { |
2128 | ev_unref (EV_A); |
2498 | ev_unref (EV_A); |
2129 | w->active = 0; |
2499 | w->active = 0; |
2130 | } |
2500 | } |
… | |
… | |
2137 | int fd = w->fd; |
2507 | int fd = w->fd; |
2138 | |
2508 | |
2139 | if (expect_false (ev_is_active (w))) |
2509 | if (expect_false (ev_is_active (w))) |
2140 | return; |
2510 | return; |
2141 | |
2511 | |
2142 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2512 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2513 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2143 | |
2514 | |
2144 | EV_FREQUENT_CHECK; |
2515 | EV_FREQUENT_CHECK; |
2145 | |
2516 | |
2146 | ev_start (EV_A_ (W)w, 1); |
2517 | ev_start (EV_A_ (W)w, 1); |
2147 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2518 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2148 | wlist_add (&anfds[fd].head, (WL)w); |
2519 | wlist_add (&anfds[fd].head, (WL)w); |
2149 | |
2520 | |
2150 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2521 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2151 | w->events &= ~EV_IOFDSET; |
2522 | w->events &= ~EV__IOFDSET; |
2152 | |
2523 | |
2153 | EV_FREQUENT_CHECK; |
2524 | EV_FREQUENT_CHECK; |
2154 | } |
2525 | } |
2155 | |
2526 | |
2156 | void noinline |
2527 | void noinline |
… | |
… | |
2158 | { |
2529 | { |
2159 | clear_pending (EV_A_ (W)w); |
2530 | clear_pending (EV_A_ (W)w); |
2160 | if (expect_false (!ev_is_active (w))) |
2531 | if (expect_false (!ev_is_active (w))) |
2161 | return; |
2532 | return; |
2162 | |
2533 | |
2163 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2534 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2164 | |
2535 | |
2165 | EV_FREQUENT_CHECK; |
2536 | EV_FREQUENT_CHECK; |
2166 | |
2537 | |
2167 | wlist_del (&anfds[w->fd].head, (WL)w); |
2538 | wlist_del (&anfds[w->fd].head, (WL)w); |
2168 | ev_stop (EV_A_ (W)w); |
2539 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2178 | if (expect_false (ev_is_active (w))) |
2549 | if (expect_false (ev_is_active (w))) |
2179 | return; |
2550 | return; |
2180 | |
2551 | |
2181 | ev_at (w) += mn_now; |
2552 | ev_at (w) += mn_now; |
2182 | |
2553 | |
2183 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2554 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2184 | |
2555 | |
2185 | EV_FREQUENT_CHECK; |
2556 | EV_FREQUENT_CHECK; |
2186 | |
2557 | |
2187 | ++timercnt; |
2558 | ++timercnt; |
2188 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2559 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2191 | ANHE_at_cache (timers [ev_active (w)]); |
2562 | ANHE_at_cache (timers [ev_active (w)]); |
2192 | upheap (timers, ev_active (w)); |
2563 | upheap (timers, ev_active (w)); |
2193 | |
2564 | |
2194 | EV_FREQUENT_CHECK; |
2565 | EV_FREQUENT_CHECK; |
2195 | |
2566 | |
2196 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2567 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2197 | } |
2568 | } |
2198 | |
2569 | |
2199 | void noinline |
2570 | void noinline |
2200 | ev_timer_stop (EV_P_ ev_timer *w) |
2571 | ev_timer_stop (EV_P_ ev_timer *w) |
2201 | { |
2572 | { |
… | |
… | |
2206 | EV_FREQUENT_CHECK; |
2577 | EV_FREQUENT_CHECK; |
2207 | |
2578 | |
2208 | { |
2579 | { |
2209 | int active = ev_active (w); |
2580 | int active = ev_active (w); |
2210 | |
2581 | |
2211 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2582 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2212 | |
2583 | |
2213 | --timercnt; |
2584 | --timercnt; |
2214 | |
2585 | |
2215 | if (expect_true (active < timercnt + HEAP0)) |
2586 | if (expect_true (active < timercnt + HEAP0)) |
2216 | { |
2587 | { |
2217 | timers [active] = timers [timercnt + HEAP0]; |
2588 | timers [active] = timers [timercnt + HEAP0]; |
2218 | adjustheap (timers, timercnt, active); |
2589 | adjustheap (timers, timercnt, active); |
2219 | } |
2590 | } |
2220 | } |
2591 | } |
2221 | |
2592 | |
2222 | EV_FREQUENT_CHECK; |
|
|
2223 | |
|
|
2224 | ev_at (w) -= mn_now; |
2593 | ev_at (w) -= mn_now; |
2225 | |
2594 | |
2226 | ev_stop (EV_A_ (W)w); |
2595 | ev_stop (EV_A_ (W)w); |
|
|
2596 | |
|
|
2597 | EV_FREQUENT_CHECK; |
2227 | } |
2598 | } |
2228 | |
2599 | |
2229 | void noinline |
2600 | void noinline |
2230 | ev_timer_again (EV_P_ ev_timer *w) |
2601 | ev_timer_again (EV_P_ ev_timer *w) |
2231 | { |
2602 | { |
… | |
… | |
2249 | } |
2620 | } |
2250 | |
2621 | |
2251 | EV_FREQUENT_CHECK; |
2622 | EV_FREQUENT_CHECK; |
2252 | } |
2623 | } |
2253 | |
2624 | |
|
|
2625 | ev_tstamp |
|
|
2626 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2627 | { |
|
|
2628 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2629 | } |
|
|
2630 | |
2254 | #if EV_PERIODIC_ENABLE |
2631 | #if EV_PERIODIC_ENABLE |
2255 | void noinline |
2632 | void noinline |
2256 | ev_periodic_start (EV_P_ ev_periodic *w) |
2633 | ev_periodic_start (EV_P_ ev_periodic *w) |
2257 | { |
2634 | { |
2258 | if (expect_false (ev_is_active (w))) |
2635 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2260 | |
2637 | |
2261 | if (w->reschedule_cb) |
2638 | if (w->reschedule_cb) |
2262 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2639 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2263 | else if (w->interval) |
2640 | else if (w->interval) |
2264 | { |
2641 | { |
2265 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2642 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2266 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2643 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2267 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2644 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2268 | } |
2645 | } |
2269 | else |
2646 | else |
2270 | ev_at (w) = w->offset; |
2647 | ev_at (w) = w->offset; |
… | |
… | |
2278 | ANHE_at_cache (periodics [ev_active (w)]); |
2655 | ANHE_at_cache (periodics [ev_active (w)]); |
2279 | upheap (periodics, ev_active (w)); |
2656 | upheap (periodics, ev_active (w)); |
2280 | |
2657 | |
2281 | EV_FREQUENT_CHECK; |
2658 | EV_FREQUENT_CHECK; |
2282 | |
2659 | |
2283 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2660 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2284 | } |
2661 | } |
2285 | |
2662 | |
2286 | void noinline |
2663 | void noinline |
2287 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2664 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2288 | { |
2665 | { |
… | |
… | |
2293 | EV_FREQUENT_CHECK; |
2670 | EV_FREQUENT_CHECK; |
2294 | |
2671 | |
2295 | { |
2672 | { |
2296 | int active = ev_active (w); |
2673 | int active = ev_active (w); |
2297 | |
2674 | |
2298 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2675 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2299 | |
2676 | |
2300 | --periodiccnt; |
2677 | --periodiccnt; |
2301 | |
2678 | |
2302 | if (expect_true (active < periodiccnt + HEAP0)) |
2679 | if (expect_true (active < periodiccnt + HEAP0)) |
2303 | { |
2680 | { |
2304 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2681 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2305 | adjustheap (periodics, periodiccnt, active); |
2682 | adjustheap (periodics, periodiccnt, active); |
2306 | } |
2683 | } |
2307 | } |
2684 | } |
2308 | |
2685 | |
2309 | EV_FREQUENT_CHECK; |
|
|
2310 | |
|
|
2311 | ev_stop (EV_A_ (W)w); |
2686 | ev_stop (EV_A_ (W)w); |
|
|
2687 | |
|
|
2688 | EV_FREQUENT_CHECK; |
2312 | } |
2689 | } |
2313 | |
2690 | |
2314 | void noinline |
2691 | void noinline |
2315 | ev_periodic_again (EV_P_ ev_periodic *w) |
2692 | ev_periodic_again (EV_P_ ev_periodic *w) |
2316 | { |
2693 | { |
… | |
… | |
2325 | #endif |
2702 | #endif |
2326 | |
2703 | |
2327 | void noinline |
2704 | void noinline |
2328 | ev_signal_start (EV_P_ ev_signal *w) |
2705 | ev_signal_start (EV_P_ ev_signal *w) |
2329 | { |
2706 | { |
2330 | #if EV_MULTIPLICITY |
|
|
2331 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2332 | #endif |
|
|
2333 | if (expect_false (ev_is_active (w))) |
2707 | if (expect_false (ev_is_active (w))) |
2334 | return; |
2708 | return; |
2335 | |
2709 | |
2336 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2710 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2337 | |
2711 | |
2338 | evpipe_init (EV_A); |
2712 | #if EV_MULTIPLICITY |
|
|
2713 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2714 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2339 | |
2715 | |
2340 | EV_FREQUENT_CHECK; |
2716 | signals [w->signum - 1].loop = EV_A; |
|
|
2717 | #endif |
2341 | |
2718 | |
|
|
2719 | EV_FREQUENT_CHECK; |
|
|
2720 | |
|
|
2721 | #if EV_USE_SIGNALFD |
|
|
2722 | if (sigfd == -2) |
2342 | { |
2723 | { |
2343 | #ifndef _WIN32 |
2724 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2344 | sigset_t full, prev; |
2725 | if (sigfd < 0 && errno == EINVAL) |
2345 | sigfillset (&full); |
2726 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2346 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2347 | #endif |
|
|
2348 | |
2727 | |
2349 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2728 | if (sigfd >= 0) |
|
|
2729 | { |
|
|
2730 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2350 | |
2731 | |
2351 | #ifndef _WIN32 |
2732 | sigemptyset (&sigfd_set); |
2352 | sigprocmask (SIG_SETMASK, &prev, 0); |
2733 | |
2353 | #endif |
2734 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2735 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2736 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2737 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2738 | } |
2354 | } |
2739 | } |
|
|
2740 | |
|
|
2741 | if (sigfd >= 0) |
|
|
2742 | { |
|
|
2743 | /* TODO: check .head */ |
|
|
2744 | sigaddset (&sigfd_set, w->signum); |
|
|
2745 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2746 | |
|
|
2747 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2748 | } |
|
|
2749 | #endif |
2355 | |
2750 | |
2356 | ev_start (EV_A_ (W)w, 1); |
2751 | ev_start (EV_A_ (W)w, 1); |
2357 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2752 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2358 | |
2753 | |
2359 | if (!((WL)w)->next) |
2754 | if (!((WL)w)->next) |
|
|
2755 | # if EV_USE_SIGNALFD |
|
|
2756 | if (sigfd < 0) /*TODO*/ |
|
|
2757 | # endif |
2360 | { |
2758 | { |
2361 | #if _WIN32 |
2759 | # ifdef _WIN32 |
|
|
2760 | evpipe_init (EV_A); |
|
|
2761 | |
2362 | signal (w->signum, ev_sighandler); |
2762 | signal (w->signum, ev_sighandler); |
2363 | #else |
2763 | # else |
2364 | struct sigaction sa; |
2764 | struct sigaction sa; |
|
|
2765 | |
|
|
2766 | evpipe_init (EV_A); |
|
|
2767 | |
2365 | sa.sa_handler = ev_sighandler; |
2768 | sa.sa_handler = ev_sighandler; |
2366 | sigfillset (&sa.sa_mask); |
2769 | sigfillset (&sa.sa_mask); |
2367 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2770 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2368 | sigaction (w->signum, &sa, 0); |
2771 | sigaction (w->signum, &sa, 0); |
|
|
2772 | |
|
|
2773 | sigemptyset (&sa.sa_mask); |
|
|
2774 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2775 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2369 | #endif |
2776 | #endif |
2370 | } |
2777 | } |
2371 | |
2778 | |
2372 | EV_FREQUENT_CHECK; |
2779 | EV_FREQUENT_CHECK; |
2373 | } |
2780 | } |
2374 | |
2781 | |
2375 | void noinline |
2782 | void noinline |
… | |
… | |
2383 | |
2790 | |
2384 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2791 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2385 | ev_stop (EV_A_ (W)w); |
2792 | ev_stop (EV_A_ (W)w); |
2386 | |
2793 | |
2387 | if (!signals [w->signum - 1].head) |
2794 | if (!signals [w->signum - 1].head) |
|
|
2795 | { |
|
|
2796 | #if EV_MULTIPLICITY |
|
|
2797 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2798 | #endif |
|
|
2799 | #if EV_USE_SIGNALFD |
|
|
2800 | if (sigfd >= 0) |
|
|
2801 | { |
|
|
2802 | sigset_t ss; |
|
|
2803 | |
|
|
2804 | sigemptyset (&ss); |
|
|
2805 | sigaddset (&ss, w->signum); |
|
|
2806 | sigdelset (&sigfd_set, w->signum); |
|
|
2807 | |
|
|
2808 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2809 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2810 | } |
|
|
2811 | else |
|
|
2812 | #endif |
2388 | signal (w->signum, SIG_DFL); |
2813 | signal (w->signum, SIG_DFL); |
|
|
2814 | } |
2389 | |
2815 | |
2390 | EV_FREQUENT_CHECK; |
2816 | EV_FREQUENT_CHECK; |
2391 | } |
2817 | } |
2392 | |
2818 | |
2393 | void |
2819 | void |
2394 | ev_child_start (EV_P_ ev_child *w) |
2820 | ev_child_start (EV_P_ ev_child *w) |
2395 | { |
2821 | { |
2396 | #if EV_MULTIPLICITY |
2822 | #if EV_MULTIPLICITY |
2397 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2823 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2398 | #endif |
2824 | #endif |
2399 | if (expect_false (ev_is_active (w))) |
2825 | if (expect_false (ev_is_active (w))) |
2400 | return; |
2826 | return; |
2401 | |
2827 | |
2402 | EV_FREQUENT_CHECK; |
2828 | EV_FREQUENT_CHECK; |
… | |
… | |
2427 | # ifdef _WIN32 |
2853 | # ifdef _WIN32 |
2428 | # undef lstat |
2854 | # undef lstat |
2429 | # define lstat(a,b) _stati64 (a,b) |
2855 | # define lstat(a,b) _stati64 (a,b) |
2430 | # endif |
2856 | # endif |
2431 | |
2857 | |
2432 | #define DEF_STAT_INTERVAL 5.0074891 |
2858 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2859 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2433 | #define MIN_STAT_INTERVAL 0.1074891 |
2860 | #define MIN_STAT_INTERVAL 0.1074891 |
2434 | |
2861 | |
2435 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2862 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2436 | |
2863 | |
2437 | #if EV_USE_INOTIFY |
2864 | #if EV_USE_INOTIFY |
2438 | # define EV_INOTIFY_BUFSIZE 8192 |
2865 | |
|
|
2866 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2867 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2439 | |
2868 | |
2440 | static void noinline |
2869 | static void noinline |
2441 | infy_add (EV_P_ ev_stat *w) |
2870 | infy_add (EV_P_ ev_stat *w) |
2442 | { |
2871 | { |
2443 | 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); |
2872 | 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); |
2444 | |
2873 | |
2445 | if (w->wd < 0) |
2874 | if (w->wd >= 0) |
|
|
2875 | { |
|
|
2876 | struct statfs sfs; |
|
|
2877 | |
|
|
2878 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2879 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2880 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2881 | |
|
|
2882 | if (!fs_2625) |
|
|
2883 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2884 | else if (!statfs (w->path, &sfs) |
|
|
2885 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2886 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2887 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2888 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2889 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2890 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2891 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2892 | else |
|
|
2893 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2446 | { |
2894 | } |
2447 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2895 | else |
|
|
2896 | { |
|
|
2897 | /* can't use inotify, continue to stat */ |
|
|
2898 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2448 | |
2899 | |
2449 | /* monitor some parent directory for speedup hints */ |
2900 | /* if path is not there, monitor some parent directory for speedup hints */ |
2450 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2901 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2451 | /* but an efficiency issue only */ |
2902 | /* but an efficiency issue only */ |
2452 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2903 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2453 | { |
2904 | { |
2454 | char path [4096]; |
2905 | char path [4096]; |
2455 | strcpy (path, w->path); |
2906 | strcpy (path, w->path); |
… | |
… | |
2459 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2910 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2460 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2911 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2461 | |
2912 | |
2462 | char *pend = strrchr (path, '/'); |
2913 | char *pend = strrchr (path, '/'); |
2463 | |
2914 | |
2464 | if (!pend) |
2915 | if (!pend || pend == path) |
2465 | break; /* whoops, no '/', complain to your admin */ |
2916 | break; |
2466 | |
2917 | |
2467 | *pend = 0; |
2918 | *pend = 0; |
2468 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2919 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2469 | } |
2920 | } |
2470 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2921 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2471 | } |
2922 | } |
2472 | } |
2923 | } |
2473 | else |
|
|
2474 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2475 | |
2924 | |
2476 | if (w->wd >= 0) |
2925 | if (w->wd >= 0) |
2477 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2926 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2927 | |
|
|
2928 | /* now re-arm timer, if required */ |
|
|
2929 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2930 | ev_timer_again (EV_A_ &w->timer); |
|
|
2931 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2478 | } |
2932 | } |
2479 | |
2933 | |
2480 | static void noinline |
2934 | static void noinline |
2481 | infy_del (EV_P_ ev_stat *w) |
2935 | infy_del (EV_P_ ev_stat *w) |
2482 | { |
2936 | { |
… | |
… | |
2496 | |
2950 | |
2497 | static void noinline |
2951 | static void noinline |
2498 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2952 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2499 | { |
2953 | { |
2500 | if (slot < 0) |
2954 | if (slot < 0) |
2501 | /* overflow, need to check for all hahs slots */ |
2955 | /* overflow, need to check for all hash slots */ |
2502 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2956 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2503 | infy_wd (EV_A_ slot, wd, ev); |
2957 | infy_wd (EV_A_ slot, wd, ev); |
2504 | else |
2958 | else |
2505 | { |
2959 | { |
2506 | WL w_; |
2960 | WL w_; |
… | |
… | |
2512 | |
2966 | |
2513 | if (w->wd == wd || wd == -1) |
2967 | if (w->wd == wd || wd == -1) |
2514 | { |
2968 | { |
2515 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2969 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2516 | { |
2970 | { |
|
|
2971 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2517 | w->wd = -1; |
2972 | w->wd = -1; |
2518 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2973 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2519 | } |
2974 | } |
2520 | |
2975 | |
2521 | stat_timer_cb (EV_A_ &w->timer, 0); |
2976 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2526 | |
2981 | |
2527 | static void |
2982 | static void |
2528 | infy_cb (EV_P_ ev_io *w, int revents) |
2983 | infy_cb (EV_P_ ev_io *w, int revents) |
2529 | { |
2984 | { |
2530 | char buf [EV_INOTIFY_BUFSIZE]; |
2985 | char buf [EV_INOTIFY_BUFSIZE]; |
2531 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2532 | int ofs; |
2986 | int ofs; |
2533 | int len = read (fs_fd, buf, sizeof (buf)); |
2987 | int len = read (fs_fd, buf, sizeof (buf)); |
2534 | |
2988 | |
2535 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2989 | for (ofs = 0; ofs < len; ) |
|
|
2990 | { |
|
|
2991 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2536 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2992 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2993 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
2994 | } |
2537 | } |
2995 | } |
2538 | |
2996 | |
2539 | void inline_size |
2997 | inline_size void |
|
|
2998 | check_2625 (EV_P) |
|
|
2999 | { |
|
|
3000 | /* kernels < 2.6.25 are borked |
|
|
3001 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3002 | */ |
|
|
3003 | struct utsname buf; |
|
|
3004 | int major, minor, micro; |
|
|
3005 | |
|
|
3006 | if (uname (&buf)) |
|
|
3007 | return; |
|
|
3008 | |
|
|
3009 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
3010 | return; |
|
|
3011 | |
|
|
3012 | if (major < 2 |
|
|
3013 | || (major == 2 && minor < 6) |
|
|
3014 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
3015 | return; |
|
|
3016 | |
|
|
3017 | fs_2625 = 1; |
|
|
3018 | } |
|
|
3019 | |
|
|
3020 | inline_size int |
|
|
3021 | infy_newfd (void) |
|
|
3022 | { |
|
|
3023 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3024 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3025 | if (fd >= 0) |
|
|
3026 | return fd; |
|
|
3027 | #endif |
|
|
3028 | return inotify_init (); |
|
|
3029 | } |
|
|
3030 | |
|
|
3031 | inline_size void |
2540 | infy_init (EV_P) |
3032 | infy_init (EV_P) |
2541 | { |
3033 | { |
2542 | if (fs_fd != -2) |
3034 | if (fs_fd != -2) |
2543 | return; |
3035 | return; |
2544 | |
3036 | |
|
|
3037 | fs_fd = -1; |
|
|
3038 | |
|
|
3039 | check_2625 (EV_A); |
|
|
3040 | |
2545 | fs_fd = inotify_init (); |
3041 | fs_fd = infy_newfd (); |
2546 | |
3042 | |
2547 | if (fs_fd >= 0) |
3043 | if (fs_fd >= 0) |
2548 | { |
3044 | { |
|
|
3045 | fd_intern (fs_fd); |
2549 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3046 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2550 | ev_set_priority (&fs_w, EV_MAXPRI); |
3047 | ev_set_priority (&fs_w, EV_MAXPRI); |
2551 | ev_io_start (EV_A_ &fs_w); |
3048 | ev_io_start (EV_A_ &fs_w); |
|
|
3049 | ev_unref (EV_A); |
2552 | } |
3050 | } |
2553 | } |
3051 | } |
2554 | |
3052 | |
2555 | void inline_size |
3053 | inline_size void |
2556 | infy_fork (EV_P) |
3054 | infy_fork (EV_P) |
2557 | { |
3055 | { |
2558 | int slot; |
3056 | int slot; |
2559 | |
3057 | |
2560 | if (fs_fd < 0) |
3058 | if (fs_fd < 0) |
2561 | return; |
3059 | return; |
2562 | |
3060 | |
|
|
3061 | ev_ref (EV_A); |
|
|
3062 | ev_io_stop (EV_A_ &fs_w); |
2563 | close (fs_fd); |
3063 | close (fs_fd); |
2564 | fs_fd = inotify_init (); |
3064 | fs_fd = infy_newfd (); |
|
|
3065 | |
|
|
3066 | if (fs_fd >= 0) |
|
|
3067 | { |
|
|
3068 | fd_intern (fs_fd); |
|
|
3069 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3070 | ev_io_start (EV_A_ &fs_w); |
|
|
3071 | ev_unref (EV_A); |
|
|
3072 | } |
2565 | |
3073 | |
2566 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3074 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2567 | { |
3075 | { |
2568 | WL w_ = fs_hash [slot].head; |
3076 | WL w_ = fs_hash [slot].head; |
2569 | fs_hash [slot].head = 0; |
3077 | fs_hash [slot].head = 0; |
… | |
… | |
2576 | w->wd = -1; |
3084 | w->wd = -1; |
2577 | |
3085 | |
2578 | if (fs_fd >= 0) |
3086 | if (fs_fd >= 0) |
2579 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3087 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2580 | else |
3088 | else |
|
|
3089 | { |
|
|
3090 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3091 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2581 | ev_timer_start (EV_A_ &w->timer); |
3092 | ev_timer_again (EV_A_ &w->timer); |
|
|
3093 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3094 | } |
2582 | } |
3095 | } |
2583 | |
|
|
2584 | } |
3096 | } |
2585 | } |
3097 | } |
2586 | |
3098 | |
2587 | #endif |
3099 | #endif |
2588 | |
3100 | |
… | |
… | |
2604 | static void noinline |
3116 | static void noinline |
2605 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3117 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2606 | { |
3118 | { |
2607 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3119 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2608 | |
3120 | |
2609 | /* we copy this here each the time so that */ |
3121 | ev_statdata prev = w->attr; |
2610 | /* prev has the old value when the callback gets invoked */ |
|
|
2611 | w->prev = w->attr; |
|
|
2612 | ev_stat_stat (EV_A_ w); |
3122 | ev_stat_stat (EV_A_ w); |
2613 | |
3123 | |
2614 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3124 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2615 | if ( |
3125 | if ( |
2616 | w->prev.st_dev != w->attr.st_dev |
3126 | prev.st_dev != w->attr.st_dev |
2617 | || w->prev.st_ino != w->attr.st_ino |
3127 | || prev.st_ino != w->attr.st_ino |
2618 | || w->prev.st_mode != w->attr.st_mode |
3128 | || prev.st_mode != w->attr.st_mode |
2619 | || w->prev.st_nlink != w->attr.st_nlink |
3129 | || prev.st_nlink != w->attr.st_nlink |
2620 | || w->prev.st_uid != w->attr.st_uid |
3130 | || prev.st_uid != w->attr.st_uid |
2621 | || w->prev.st_gid != w->attr.st_gid |
3131 | || prev.st_gid != w->attr.st_gid |
2622 | || w->prev.st_rdev != w->attr.st_rdev |
3132 | || prev.st_rdev != w->attr.st_rdev |
2623 | || w->prev.st_size != w->attr.st_size |
3133 | || prev.st_size != w->attr.st_size |
2624 | || w->prev.st_atime != w->attr.st_atime |
3134 | || prev.st_atime != w->attr.st_atime |
2625 | || w->prev.st_mtime != w->attr.st_mtime |
3135 | || prev.st_mtime != w->attr.st_mtime |
2626 | || w->prev.st_ctime != w->attr.st_ctime |
3136 | || prev.st_ctime != w->attr.st_ctime |
2627 | ) { |
3137 | ) { |
|
|
3138 | /* we only update w->prev on actual differences */ |
|
|
3139 | /* in case we test more often than invoke the callback, */ |
|
|
3140 | /* to ensure that prev is always different to attr */ |
|
|
3141 | w->prev = prev; |
|
|
3142 | |
2628 | #if EV_USE_INOTIFY |
3143 | #if EV_USE_INOTIFY |
|
|
3144 | if (fs_fd >= 0) |
|
|
3145 | { |
2629 | infy_del (EV_A_ w); |
3146 | infy_del (EV_A_ w); |
2630 | infy_add (EV_A_ w); |
3147 | infy_add (EV_A_ w); |
2631 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3148 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3149 | } |
2632 | #endif |
3150 | #endif |
2633 | |
3151 | |
2634 | ev_feed_event (EV_A_ w, EV_STAT); |
3152 | ev_feed_event (EV_A_ w, EV_STAT); |
2635 | } |
3153 | } |
2636 | } |
3154 | } |
… | |
… | |
2639 | ev_stat_start (EV_P_ ev_stat *w) |
3157 | ev_stat_start (EV_P_ ev_stat *w) |
2640 | { |
3158 | { |
2641 | if (expect_false (ev_is_active (w))) |
3159 | if (expect_false (ev_is_active (w))) |
2642 | return; |
3160 | return; |
2643 | |
3161 | |
2644 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2645 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2646 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2647 | |
|
|
2648 | ev_stat_stat (EV_A_ w); |
3162 | ev_stat_stat (EV_A_ w); |
2649 | |
3163 | |
|
|
3164 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2650 | if (w->interval < MIN_STAT_INTERVAL) |
3165 | w->interval = MIN_STAT_INTERVAL; |
2651 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2652 | |
3166 | |
2653 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3167 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2654 | ev_set_priority (&w->timer, ev_priority (w)); |
3168 | ev_set_priority (&w->timer, ev_priority (w)); |
2655 | |
3169 | |
2656 | #if EV_USE_INOTIFY |
3170 | #if EV_USE_INOTIFY |
2657 | infy_init (EV_A); |
3171 | infy_init (EV_A); |
2658 | |
3172 | |
2659 | if (fs_fd >= 0) |
3173 | if (fs_fd >= 0) |
2660 | infy_add (EV_A_ w); |
3174 | infy_add (EV_A_ w); |
2661 | else |
3175 | else |
2662 | #endif |
3176 | #endif |
|
|
3177 | { |
2663 | ev_timer_start (EV_A_ &w->timer); |
3178 | ev_timer_again (EV_A_ &w->timer); |
|
|
3179 | ev_unref (EV_A); |
|
|
3180 | } |
2664 | |
3181 | |
2665 | ev_start (EV_A_ (W)w, 1); |
3182 | ev_start (EV_A_ (W)w, 1); |
2666 | |
3183 | |
2667 | EV_FREQUENT_CHECK; |
3184 | EV_FREQUENT_CHECK; |
2668 | } |
3185 | } |
… | |
… | |
2677 | EV_FREQUENT_CHECK; |
3194 | EV_FREQUENT_CHECK; |
2678 | |
3195 | |
2679 | #if EV_USE_INOTIFY |
3196 | #if EV_USE_INOTIFY |
2680 | infy_del (EV_A_ w); |
3197 | infy_del (EV_A_ w); |
2681 | #endif |
3198 | #endif |
|
|
3199 | |
|
|
3200 | if (ev_is_active (&w->timer)) |
|
|
3201 | { |
|
|
3202 | ev_ref (EV_A); |
2682 | ev_timer_stop (EV_A_ &w->timer); |
3203 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3204 | } |
2683 | |
3205 | |
2684 | ev_stop (EV_A_ (W)w); |
3206 | ev_stop (EV_A_ (W)w); |
2685 | |
3207 | |
2686 | EV_FREQUENT_CHECK; |
3208 | EV_FREQUENT_CHECK; |
2687 | } |
3209 | } |
… | |
… | |
2828 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3350 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2829 | { |
3351 | { |
2830 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3352 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2831 | |
3353 | |
2832 | { |
3354 | { |
2833 | struct ev_loop *loop = w->other; |
3355 | EV_P = w->other; |
2834 | |
3356 | |
2835 | while (fdchangecnt) |
3357 | while (fdchangecnt) |
2836 | { |
3358 | { |
2837 | fd_reify (EV_A); |
3359 | fd_reify (EV_A); |
2838 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3360 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
2843 | static void |
3365 | static void |
2844 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3366 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2845 | { |
3367 | { |
2846 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3368 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2847 | |
3369 | |
|
|
3370 | ev_embed_stop (EV_A_ w); |
|
|
3371 | |
2848 | { |
3372 | { |
2849 | struct ev_loop *loop = w->other; |
3373 | EV_P = w->other; |
2850 | |
3374 | |
2851 | ev_loop_fork (EV_A); |
3375 | ev_loop_fork (EV_A); |
|
|
3376 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2852 | } |
3377 | } |
|
|
3378 | |
|
|
3379 | ev_embed_start (EV_A_ w); |
2853 | } |
3380 | } |
2854 | |
3381 | |
2855 | #if 0 |
3382 | #if 0 |
2856 | static void |
3383 | static void |
2857 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3384 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2865 | { |
3392 | { |
2866 | if (expect_false (ev_is_active (w))) |
3393 | if (expect_false (ev_is_active (w))) |
2867 | return; |
3394 | return; |
2868 | |
3395 | |
2869 | { |
3396 | { |
2870 | struct ev_loop *loop = w->other; |
3397 | EV_P = w->other; |
2871 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3398 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2872 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3399 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2873 | } |
3400 | } |
2874 | |
3401 | |
2875 | EV_FREQUENT_CHECK; |
3402 | EV_FREQUENT_CHECK; |
2876 | |
3403 | |
… | |
… | |
2902 | |
3429 | |
2903 | ev_io_stop (EV_A_ &w->io); |
3430 | ev_io_stop (EV_A_ &w->io); |
2904 | ev_prepare_stop (EV_A_ &w->prepare); |
3431 | ev_prepare_stop (EV_A_ &w->prepare); |
2905 | ev_fork_stop (EV_A_ &w->fork); |
3432 | ev_fork_stop (EV_A_ &w->fork); |
2906 | |
3433 | |
|
|
3434 | ev_stop (EV_A_ (W)w); |
|
|
3435 | |
2907 | EV_FREQUENT_CHECK; |
3436 | EV_FREQUENT_CHECK; |
2908 | } |
3437 | } |
2909 | #endif |
3438 | #endif |
2910 | |
3439 | |
2911 | #if EV_FORK_ENABLE |
3440 | #if EV_FORK_ENABLE |
… | |
… | |
2987 | |
3516 | |
2988 | void |
3517 | void |
2989 | ev_async_send (EV_P_ ev_async *w) |
3518 | ev_async_send (EV_P_ ev_async *w) |
2990 | { |
3519 | { |
2991 | w->sent = 1; |
3520 | w->sent = 1; |
2992 | evpipe_write (EV_A_ &gotasync); |
3521 | evpipe_write (EV_A_ &async_pending); |
2993 | } |
3522 | } |
2994 | #endif |
3523 | #endif |
2995 | |
3524 | |
2996 | /*****************************************************************************/ |
3525 | /*****************************************************************************/ |
2997 | |
3526 | |
… | |
… | |
3059 | ev_timer_set (&once->to, timeout, 0.); |
3588 | ev_timer_set (&once->to, timeout, 0.); |
3060 | ev_timer_start (EV_A_ &once->to); |
3589 | ev_timer_start (EV_A_ &once->to); |
3061 | } |
3590 | } |
3062 | } |
3591 | } |
3063 | |
3592 | |
|
|
3593 | /*****************************************************************************/ |
|
|
3594 | |
|
|
3595 | #if EV_WALK_ENABLE |
|
|
3596 | void |
|
|
3597 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3598 | { |
|
|
3599 | int i, j; |
|
|
3600 | ev_watcher_list *wl, *wn; |
|
|
3601 | |
|
|
3602 | if (types & (EV_IO | EV_EMBED)) |
|
|
3603 | for (i = 0; i < anfdmax; ++i) |
|
|
3604 | for (wl = anfds [i].head; wl; ) |
|
|
3605 | { |
|
|
3606 | wn = wl->next; |
|
|
3607 | |
|
|
3608 | #if EV_EMBED_ENABLE |
|
|
3609 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3610 | { |
|
|
3611 | if (types & EV_EMBED) |
|
|
3612 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3613 | } |
|
|
3614 | else |
|
|
3615 | #endif |
|
|
3616 | #if EV_USE_INOTIFY |
|
|
3617 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3618 | ; |
|
|
3619 | else |
|
|
3620 | #endif |
|
|
3621 | if ((ev_io *)wl != &pipe_w) |
|
|
3622 | if (types & EV_IO) |
|
|
3623 | cb (EV_A_ EV_IO, wl); |
|
|
3624 | |
|
|
3625 | wl = wn; |
|
|
3626 | } |
|
|
3627 | |
|
|
3628 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3629 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3630 | #if EV_STAT_ENABLE |
|
|
3631 | /*TODO: timer is not always active*/ |
|
|
3632 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3633 | { |
|
|
3634 | if (types & EV_STAT) |
|
|
3635 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3636 | } |
|
|
3637 | else |
|
|
3638 | #endif |
|
|
3639 | if (types & EV_TIMER) |
|
|
3640 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3641 | |
|
|
3642 | #if EV_PERIODIC_ENABLE |
|
|
3643 | if (types & EV_PERIODIC) |
|
|
3644 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3645 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3646 | #endif |
|
|
3647 | |
|
|
3648 | #if EV_IDLE_ENABLE |
|
|
3649 | if (types & EV_IDLE) |
|
|
3650 | for (j = NUMPRI; i--; ) |
|
|
3651 | for (i = idlecnt [j]; i--; ) |
|
|
3652 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3653 | #endif |
|
|
3654 | |
|
|
3655 | #if EV_FORK_ENABLE |
|
|
3656 | if (types & EV_FORK) |
|
|
3657 | for (i = forkcnt; i--; ) |
|
|
3658 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3659 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3660 | #endif |
|
|
3661 | |
|
|
3662 | #if EV_ASYNC_ENABLE |
|
|
3663 | if (types & EV_ASYNC) |
|
|
3664 | for (i = asynccnt; i--; ) |
|
|
3665 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3666 | #endif |
|
|
3667 | |
|
|
3668 | if (types & EV_PREPARE) |
|
|
3669 | for (i = preparecnt; i--; ) |
|
|
3670 | #if EV_EMBED_ENABLE |
|
|
3671 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3672 | #endif |
|
|
3673 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3674 | |
|
|
3675 | if (types & EV_CHECK) |
|
|
3676 | for (i = checkcnt; i--; ) |
|
|
3677 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3678 | |
|
|
3679 | if (types & EV_SIGNAL) |
|
|
3680 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3681 | for (wl = signals [i].head; wl; ) |
|
|
3682 | { |
|
|
3683 | wn = wl->next; |
|
|
3684 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3685 | wl = wn; |
|
|
3686 | } |
|
|
3687 | |
|
|
3688 | if (types & EV_CHILD) |
|
|
3689 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3690 | for (wl = childs [i]; wl; ) |
|
|
3691 | { |
|
|
3692 | wn = wl->next; |
|
|
3693 | cb (EV_A_ EV_CHILD, wl); |
|
|
3694 | wl = wn; |
|
|
3695 | } |
|
|
3696 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3697 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3698 | } |
|
|
3699 | #endif |
|
|
3700 | |
3064 | #if EV_MULTIPLICITY |
3701 | #if EV_MULTIPLICITY |
3065 | #include "ev_wrap.h" |
3702 | #include "ev_wrap.h" |
3066 | #endif |
3703 | #endif |
3067 | |
3704 | |
3068 | #ifdef __cplusplus |
3705 | #ifdef __cplusplus |