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 |
|
|
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 |
129 | # endif |
151 | # endif |
130 | # endif |
152 | # endif |
131 | |
153 | |
132 | #endif |
154 | #endif |
133 | |
155 | |
134 | #include <math.h> |
156 | #include <math.h> |
135 | #include <stdlib.h> |
157 | #include <stdlib.h> |
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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 |
… | |
… | |
154 | #ifndef _WIN32 |
178 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
179 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
180 | # include <sys/wait.h> |
157 | # include <unistd.h> |
181 | # include <unistd.h> |
158 | #else |
182 | #else |
|
|
183 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
184 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
185 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
188 | # endif |
|
|
189 | # undef EV_AVOID_STDIO |
164 | #endif |
190 | #endif |
165 | |
191 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
193 | |
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|
194 | /* try to deduce the maximum number of signals on this platform */ |
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195 | #if defined (EV_NSIG) |
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196 | /* use what's provided */ |
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197 | #elif defined (NSIG) |
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198 | # define EV_NSIG (NSIG) |
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199 | #elif defined(_NSIG) |
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200 | # define EV_NSIG (_NSIG) |
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201 | #elif defined (SIGMAX) |
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202 | # define EV_NSIG (SIGMAX+1) |
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203 | #elif defined (SIG_MAX) |
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204 | # define EV_NSIG (SIG_MAX+1) |
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205 | #elif defined (_SIG_MAX) |
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206 | # define EV_NSIG (_SIG_MAX+1) |
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207 | #elif defined (MAXSIG) |
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208 | # define EV_NSIG (MAXSIG+1) |
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209 | #elif defined (MAX_SIG) |
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210 | # define EV_NSIG (MAX_SIG+1) |
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211 | #elif defined (SIGARRAYSIZE) |
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212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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213 | #elif defined (_sys_nsig) |
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214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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215 | #else |
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216 | # error "unable to find value for NSIG, please report" |
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217 | /* to make it compile regardless, just remove the above line, */ |
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218 | /* but consider reporting it, too! :) */ |
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219 | # define EV_NSIG 65 |
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220 | #endif |
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221 | |
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222 | #ifndef EV_USE_CLOCK_SYSCALL |
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223 | # if __linux && __GLIBC__ >= 2 |
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224 | # define EV_USE_CLOCK_SYSCALL 1 |
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225 | # else |
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226 | # define EV_USE_CLOCK_SYSCALL 0 |
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227 | # endif |
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228 | #endif |
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229 | |
168 | #ifndef EV_USE_MONOTONIC |
230 | #ifndef EV_USE_MONOTONIC |
|
|
231 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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232 | # define EV_USE_MONOTONIC 1 |
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233 | # else |
169 | # define EV_USE_MONOTONIC 0 |
234 | # define EV_USE_MONOTONIC 0 |
|
|
235 | # endif |
170 | #endif |
236 | #endif |
171 | |
237 | |
172 | #ifndef EV_USE_REALTIME |
238 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
239 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
240 | #endif |
175 | |
241 | |
176 | #ifndef EV_USE_NANOSLEEP |
242 | #ifndef EV_USE_NANOSLEEP |
|
|
243 | # if _POSIX_C_SOURCE >= 199309L |
|
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244 | # define EV_USE_NANOSLEEP 1 |
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245 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
246 | # define EV_USE_NANOSLEEP 0 |
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|
247 | # endif |
178 | #endif |
248 | #endif |
179 | |
249 | |
180 | #ifndef EV_USE_SELECT |
250 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
251 | # define EV_USE_SELECT 1 |
182 | #endif |
252 | #endif |
… | |
… | |
235 | # else |
305 | # else |
236 | # define EV_USE_EVENTFD 0 |
306 | # define EV_USE_EVENTFD 0 |
237 | # endif |
307 | # endif |
238 | #endif |
308 | #endif |
239 | |
309 | |
|
|
310 | #ifndef EV_USE_SIGNALFD |
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311 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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312 | # define EV_USE_SIGNALFD 1 |
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313 | # else |
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314 | # define EV_USE_SIGNALFD 0 |
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315 | # endif |
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316 | #endif |
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317 | |
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318 | #if 0 /* debugging */ |
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319 | # define EV_VERIFY 3 |
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320 | # define EV_USE_4HEAP 1 |
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321 | # define EV_HEAP_CACHE_AT 1 |
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322 | #endif |
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323 | |
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324 | #ifndef EV_VERIFY |
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325 | # define EV_VERIFY !EV_MINIMAL |
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326 | #endif |
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327 | |
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328 | #ifndef EV_USE_4HEAP |
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329 | # define EV_USE_4HEAP !EV_MINIMAL |
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330 | #endif |
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331 | |
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332 | #ifndef EV_HEAP_CACHE_AT |
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333 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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334 | #endif |
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335 | |
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336 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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337 | /* which makes programs even slower. might work on other unices, too. */ |
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338 | #if EV_USE_CLOCK_SYSCALL |
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339 | # include <syscall.h> |
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340 | # ifdef SYS_clock_gettime |
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341 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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342 | # undef EV_USE_MONOTONIC |
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343 | # define EV_USE_MONOTONIC 1 |
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344 | # else |
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345 | # undef EV_USE_CLOCK_SYSCALL |
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346 | # define EV_USE_CLOCK_SYSCALL 0 |
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347 | # endif |
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348 | #endif |
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349 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
350 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
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351 | |
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352 | #ifdef _AIX |
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353 | /* AIX has a completely broken poll.h header */ |
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354 | # undef EV_USE_POLL |
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355 | # define EV_USE_POLL 0 |
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356 | #endif |
241 | |
357 | |
242 | #ifndef CLOCK_MONOTONIC |
358 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
359 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
360 | # define EV_USE_MONOTONIC 0 |
245 | #endif |
361 | #endif |
… | |
… | |
259 | # include <sys/select.h> |
375 | # include <sys/select.h> |
260 | # endif |
376 | # endif |
261 | #endif |
377 | #endif |
262 | |
378 | |
263 | #if EV_USE_INOTIFY |
379 | #if EV_USE_INOTIFY |
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|
380 | # include <sys/utsname.h> |
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381 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
382 | # include <sys/inotify.h> |
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383 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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384 | # ifndef IN_DONT_FOLLOW |
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385 | # undef EV_USE_INOTIFY |
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386 | # define EV_USE_INOTIFY 0 |
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387 | # endif |
265 | #endif |
388 | #endif |
266 | |
389 | |
267 | #if EV_SELECT_IS_WINSOCKET |
390 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
391 | # include <winsock.h> |
269 | #endif |
392 | #endif |
270 | |
393 | |
271 | #if EV_USE_EVENTFD |
394 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
395 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
396 | # include <stdint.h> |
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397 | # ifndef EFD_NONBLOCK |
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398 | # define EFD_NONBLOCK O_NONBLOCK |
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399 | # endif |
|
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400 | # ifndef EFD_CLOEXEC |
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401 | # ifdef O_CLOEXEC |
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402 | # define EFD_CLOEXEC O_CLOEXEC |
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403 | # else |
|
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404 | # define EFD_CLOEXEC 02000000 |
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405 | # endif |
|
|
406 | # endif |
274 | # ifdef __cplusplus |
407 | # ifdef __cplusplus |
275 | extern "C" { |
408 | extern "C" { |
276 | # endif |
409 | # endif |
277 | int eventfd (unsigned int initval, int flags); |
410 | int (eventfd) (unsigned int initval, int flags); |
278 | # ifdef __cplusplus |
411 | # ifdef __cplusplus |
279 | } |
412 | } |
280 | # endif |
413 | # endif |
281 | #endif |
414 | #endif |
282 | |
415 | |
|
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416 | #if EV_USE_SIGNALFD |
|
|
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
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418 | # include <stdint.h> |
|
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419 | # ifndef SFD_NONBLOCK |
|
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420 | # define SFD_NONBLOCK O_NONBLOCK |
|
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421 | # endif |
|
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422 | # ifndef SFD_CLOEXEC |
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423 | # ifdef O_CLOEXEC |
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424 | # define SFD_CLOEXEC O_CLOEXEC |
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425 | # else |
|
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426 | # define SFD_CLOEXEC 02000000 |
|
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427 | # endif |
|
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428 | # endif |
|
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429 | # ifdef __cplusplus |
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430 | extern "C" { |
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431 | # endif |
|
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432 | int signalfd (int fd, const sigset_t *mask, int flags); |
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433 | |
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434 | struct signalfd_siginfo |
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435 | { |
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436 | uint32_t ssi_signo; |
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437 | char pad[128 - sizeof (uint32_t)]; |
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438 | }; |
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439 | # ifdef __cplusplus |
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440 | } |
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441 | # endif |
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442 | #endif |
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443 | |
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444 | |
283 | /**/ |
445 | /**/ |
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446 | |
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447 | #if EV_VERIFY >= 3 |
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448 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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449 | #else |
|
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450 | # define EV_FREQUENT_CHECK do { } while (0) |
|
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451 | #endif |
284 | |
452 | |
285 | /* |
453 | /* |
286 | * This is used to avoid floating point rounding problems. |
454 | * This is used to avoid floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
455 | * It is added to ev_rt_now when scheduling periodics |
288 | * to ensure progress, time-wise, even when rounding |
456 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
292 | */ |
460 | */ |
293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
461 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
294 | |
462 | |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
463 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
298 | |
465 | |
299 | #if __GNUC__ >= 4 |
466 | #if __GNUC__ >= 4 |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
467 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
301 | # define noinline __attribute__ ((noinline)) |
468 | # define noinline __attribute__ ((noinline)) |
302 | #else |
469 | #else |
… | |
… | |
315 | # define inline_speed static noinline |
482 | # define inline_speed static noinline |
316 | #else |
483 | #else |
317 | # define inline_speed static inline |
484 | # define inline_speed static inline |
318 | #endif |
485 | #endif |
319 | |
486 | |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
487 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
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488 | |
|
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489 | #if EV_MINPRI == EV_MAXPRI |
|
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490 | # define ABSPRI(w) (((W)w), 0) |
|
|
491 | #else |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
492 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
493 | #endif |
322 | |
494 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
495 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
496 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
497 | |
326 | typedef ev_watcher *W; |
498 | typedef ev_watcher *W; |
… | |
… | |
328 | typedef ev_watcher_time *WT; |
500 | typedef ev_watcher_time *WT; |
329 | |
501 | |
330 | #define ev_active(w) ((W)(w))->active |
502 | #define ev_active(w) ((W)(w))->active |
331 | #define ev_at(w) ((WT)(w))->at |
503 | #define ev_at(w) ((WT)(w))->at |
332 | |
504 | |
333 | #if EV_USE_MONOTONIC |
505 | #if EV_USE_REALTIME |
334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
506 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
335 | /* giving it a reasonably high chance of working on typical architetcures */ |
507 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
508 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
509 | #endif |
|
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510 | |
|
|
511 | #if EV_USE_MONOTONIC |
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
512 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
513 | #endif |
|
|
514 | |
|
|
515 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
516 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
519 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
520 | #endif |
|
|
521 | #ifndef EV_WIN32_CLOSE_FD |
|
|
522 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
337 | #endif |
523 | #endif |
338 | |
524 | |
339 | #ifdef _WIN32 |
525 | #ifdef _WIN32 |
340 | # include "ev_win32.c" |
526 | # include "ev_win32.c" |
341 | #endif |
527 | #endif |
342 | |
528 | |
343 | /*****************************************************************************/ |
529 | /*****************************************************************************/ |
344 | |
530 | |
|
|
531 | #if EV_AVOID_STDIO |
|
|
532 | static void noinline |
|
|
533 | ev_printerr (const char *msg) |
|
|
534 | { |
|
|
535 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
536 | } |
|
|
537 | #endif |
|
|
538 | |
345 | static void (*syserr_cb)(const char *msg); |
539 | static void (*syserr_cb)(const char *msg); |
346 | |
540 | |
347 | void |
541 | void |
348 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
542 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
349 | { |
543 | { |
350 | syserr_cb = cb; |
544 | syserr_cb = cb; |
351 | } |
545 | } |
352 | |
546 | |
353 | static void noinline |
547 | static void noinline |
354 | syserr (const char *msg) |
548 | ev_syserr (const char *msg) |
355 | { |
549 | { |
356 | if (!msg) |
550 | if (!msg) |
357 | msg = "(libev) system error"; |
551 | msg = "(libev) system error"; |
358 | |
552 | |
359 | if (syserr_cb) |
553 | if (syserr_cb) |
360 | syserr_cb (msg); |
554 | syserr_cb (msg); |
361 | else |
555 | else |
362 | { |
556 | { |
|
|
557 | #if EV_AVOID_STDIO |
|
|
558 | const char *err = strerror (errno); |
|
|
559 | |
|
|
560 | ev_printerr (msg); |
|
|
561 | ev_printerr (": "); |
|
|
562 | ev_printerr (err); |
|
|
563 | ev_printerr ("\n"); |
|
|
564 | #else |
363 | perror (msg); |
565 | perror (msg); |
|
|
566 | #endif |
364 | abort (); |
567 | abort (); |
365 | } |
568 | } |
366 | } |
569 | } |
367 | |
570 | |
368 | static void * |
571 | static void * |
369 | ev_realloc_emul (void *ptr, long size) |
572 | ev_realloc_emul (void *ptr, long size) |
370 | { |
573 | { |
|
|
574 | #if __GLIBC__ |
|
|
575 | return realloc (ptr, size); |
|
|
576 | #else |
371 | /* some systems, notably openbsd and darwin, fail to properly |
577 | /* some systems, notably openbsd and darwin, fail to properly |
372 | * implement realloc (x, 0) (as required by both ansi c-98 and |
578 | * implement realloc (x, 0) (as required by both ansi c-89 and |
373 | * the single unix specification, so work around them here. |
579 | * the single unix specification, so work around them here. |
374 | */ |
580 | */ |
375 | |
581 | |
376 | if (size) |
582 | if (size) |
377 | return realloc (ptr, size); |
583 | return realloc (ptr, size); |
378 | |
584 | |
379 | free (ptr); |
585 | free (ptr); |
380 | return 0; |
586 | return 0; |
|
|
587 | #endif |
381 | } |
588 | } |
382 | |
589 | |
383 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
590 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
384 | |
591 | |
385 | void |
592 | void |
… | |
… | |
393 | { |
600 | { |
394 | ptr = alloc (ptr, size); |
601 | ptr = alloc (ptr, size); |
395 | |
602 | |
396 | if (!ptr && size) |
603 | if (!ptr && size) |
397 | { |
604 | { |
|
|
605 | #if EV_AVOID_STDIO |
|
|
606 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
607 | #else |
398 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
608 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
609 | #endif |
399 | abort (); |
610 | abort (); |
400 | } |
611 | } |
401 | |
612 | |
402 | return ptr; |
613 | return ptr; |
403 | } |
614 | } |
… | |
… | |
405 | #define ev_malloc(size) ev_realloc (0, (size)) |
616 | #define ev_malloc(size) ev_realloc (0, (size)) |
406 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
617 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
407 | |
618 | |
408 | /*****************************************************************************/ |
619 | /*****************************************************************************/ |
409 | |
620 | |
|
|
621 | /* set in reify when reification needed */ |
|
|
622 | #define EV_ANFD_REIFY 1 |
|
|
623 | |
|
|
624 | /* file descriptor info structure */ |
410 | typedef struct |
625 | typedef struct |
411 | { |
626 | { |
412 | WL head; |
627 | WL head; |
413 | unsigned char events; |
628 | unsigned char events; /* the events watched for */ |
|
|
629 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
630 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
414 | unsigned char reify; |
631 | unsigned char unused; |
|
|
632 | #if EV_USE_EPOLL |
|
|
633 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
634 | #endif |
415 | #if EV_SELECT_IS_WINSOCKET |
635 | #if EV_SELECT_IS_WINSOCKET |
416 | SOCKET handle; |
636 | SOCKET handle; |
417 | #endif |
637 | #endif |
418 | } ANFD; |
638 | } ANFD; |
419 | |
639 | |
|
|
640 | /* stores the pending event set for a given watcher */ |
420 | typedef struct |
641 | typedef struct |
421 | { |
642 | { |
422 | W w; |
643 | W w; |
423 | int events; |
644 | int events; /* the pending event set for the given watcher */ |
424 | } ANPENDING; |
645 | } ANPENDING; |
425 | |
646 | |
426 | #if EV_USE_INOTIFY |
647 | #if EV_USE_INOTIFY |
|
|
648 | /* hash table entry per inotify-id */ |
427 | typedef struct |
649 | typedef struct |
428 | { |
650 | { |
429 | WL head; |
651 | WL head; |
430 | } ANFS; |
652 | } ANFS; |
|
|
653 | #endif |
|
|
654 | |
|
|
655 | /* Heap Entry */ |
|
|
656 | #if EV_HEAP_CACHE_AT |
|
|
657 | /* a heap element */ |
|
|
658 | typedef struct { |
|
|
659 | ev_tstamp at; |
|
|
660 | WT w; |
|
|
661 | } ANHE; |
|
|
662 | |
|
|
663 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
664 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
665 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
666 | #else |
|
|
667 | /* a heap element */ |
|
|
668 | typedef WT ANHE; |
|
|
669 | |
|
|
670 | #define ANHE_w(he) (he) |
|
|
671 | #define ANHE_at(he) (he)->at |
|
|
672 | #define ANHE_at_cache(he) |
431 | #endif |
673 | #endif |
432 | |
674 | |
433 | #if EV_MULTIPLICITY |
675 | #if EV_MULTIPLICITY |
434 | |
676 | |
435 | struct ev_loop |
677 | struct ev_loop |
… | |
… | |
454 | |
696 | |
455 | static int ev_default_loop_ptr; |
697 | static int ev_default_loop_ptr; |
456 | |
698 | |
457 | #endif |
699 | #endif |
458 | |
700 | |
|
|
701 | #if EV_MINIMAL < 2 |
|
|
702 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
703 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
704 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
705 | #else |
|
|
706 | # define EV_RELEASE_CB (void)0 |
|
|
707 | # define EV_ACQUIRE_CB (void)0 |
|
|
708 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
709 | #endif |
|
|
710 | |
|
|
711 | #define EVUNLOOP_RECURSE 0x80 |
|
|
712 | |
459 | /*****************************************************************************/ |
713 | /*****************************************************************************/ |
460 | |
714 | |
|
|
715 | #ifndef EV_HAVE_EV_TIME |
461 | ev_tstamp |
716 | ev_tstamp |
462 | ev_time (void) |
717 | ev_time (void) |
463 | { |
718 | { |
464 | #if EV_USE_REALTIME |
719 | #if EV_USE_REALTIME |
|
|
720 | if (expect_true (have_realtime)) |
|
|
721 | { |
465 | struct timespec ts; |
722 | struct timespec ts; |
466 | clock_gettime (CLOCK_REALTIME, &ts); |
723 | clock_gettime (CLOCK_REALTIME, &ts); |
467 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
724 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
468 | #else |
725 | } |
|
|
726 | #endif |
|
|
727 | |
469 | struct timeval tv; |
728 | struct timeval tv; |
470 | gettimeofday (&tv, 0); |
729 | gettimeofday (&tv, 0); |
471 | return tv.tv_sec + tv.tv_usec * 1e-6; |
730 | return tv.tv_sec + tv.tv_usec * 1e-6; |
472 | #endif |
|
|
473 | } |
731 | } |
|
|
732 | #endif |
474 | |
733 | |
475 | ev_tstamp inline_size |
734 | inline_size ev_tstamp |
476 | get_clock (void) |
735 | get_clock (void) |
477 | { |
736 | { |
478 | #if EV_USE_MONOTONIC |
737 | #if EV_USE_MONOTONIC |
479 | if (expect_true (have_monotonic)) |
738 | if (expect_true (have_monotonic)) |
480 | { |
739 | { |
… | |
… | |
513 | struct timeval tv; |
772 | struct timeval tv; |
514 | |
773 | |
515 | tv.tv_sec = (time_t)delay; |
774 | tv.tv_sec = (time_t)delay; |
516 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
775 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
517 | |
776 | |
|
|
777 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
778 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
779 | /* by older ones */ |
518 | select (0, 0, 0, 0, &tv); |
780 | select (0, 0, 0, 0, &tv); |
519 | #endif |
781 | #endif |
520 | } |
782 | } |
521 | } |
783 | } |
522 | |
784 | |
523 | /*****************************************************************************/ |
785 | /*****************************************************************************/ |
524 | |
786 | |
525 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
787 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
526 | |
788 | |
527 | int inline_size |
789 | /* find a suitable new size for the given array, */ |
|
|
790 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
791 | inline_size int |
528 | array_nextsize (int elem, int cur, int cnt) |
792 | array_nextsize (int elem, int cur, int cnt) |
529 | { |
793 | { |
530 | int ncur = cur + 1; |
794 | int ncur = cur + 1; |
531 | |
795 | |
532 | do |
796 | do |
… | |
… | |
549 | array_realloc (int elem, void *base, int *cur, int cnt) |
813 | array_realloc (int elem, void *base, int *cur, int cnt) |
550 | { |
814 | { |
551 | *cur = array_nextsize (elem, *cur, cnt); |
815 | *cur = array_nextsize (elem, *cur, cnt); |
552 | return ev_realloc (base, elem * *cur); |
816 | return ev_realloc (base, elem * *cur); |
553 | } |
817 | } |
|
|
818 | |
|
|
819 | #define array_init_zero(base,count) \ |
|
|
820 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
554 | |
821 | |
555 | #define array_needsize(type,base,cur,cnt,init) \ |
822 | #define array_needsize(type,base,cur,cnt,init) \ |
556 | if (expect_false ((cnt) > (cur))) \ |
823 | if (expect_false ((cnt) > (cur))) \ |
557 | { \ |
824 | { \ |
558 | int ocur_ = (cur); \ |
825 | int ocur_ = (cur); \ |
… | |
… | |
570 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
837 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
571 | } |
838 | } |
572 | #endif |
839 | #endif |
573 | |
840 | |
574 | #define array_free(stem, idx) \ |
841 | #define array_free(stem, idx) \ |
575 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
842 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
576 | |
843 | |
577 | /*****************************************************************************/ |
844 | /*****************************************************************************/ |
|
|
845 | |
|
|
846 | /* dummy callback for pending events */ |
|
|
847 | static void noinline |
|
|
848 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
849 | { |
|
|
850 | } |
578 | |
851 | |
579 | void noinline |
852 | void noinline |
580 | ev_feed_event (EV_P_ void *w, int revents) |
853 | ev_feed_event (EV_P_ void *w, int revents) |
581 | { |
854 | { |
582 | W w_ = (W)w; |
855 | W w_ = (W)w; |
… | |
… | |
591 | pendings [pri][w_->pending - 1].w = w_; |
864 | pendings [pri][w_->pending - 1].w = w_; |
592 | pendings [pri][w_->pending - 1].events = revents; |
865 | pendings [pri][w_->pending - 1].events = revents; |
593 | } |
866 | } |
594 | } |
867 | } |
595 | |
868 | |
596 | void inline_speed |
869 | inline_speed void |
|
|
870 | feed_reverse (EV_P_ W w) |
|
|
871 | { |
|
|
872 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
873 | rfeeds [rfeedcnt++] = w; |
|
|
874 | } |
|
|
875 | |
|
|
876 | inline_size void |
|
|
877 | feed_reverse_done (EV_P_ int revents) |
|
|
878 | { |
|
|
879 | do |
|
|
880 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
881 | while (rfeedcnt); |
|
|
882 | } |
|
|
883 | |
|
|
884 | inline_speed void |
597 | queue_events (EV_P_ W *events, int eventcnt, int type) |
885 | queue_events (EV_P_ W *events, int eventcnt, int type) |
598 | { |
886 | { |
599 | int i; |
887 | int i; |
600 | |
888 | |
601 | for (i = 0; i < eventcnt; ++i) |
889 | for (i = 0; i < eventcnt; ++i) |
602 | ev_feed_event (EV_A_ events [i], type); |
890 | ev_feed_event (EV_A_ events [i], type); |
603 | } |
891 | } |
604 | |
892 | |
605 | /*****************************************************************************/ |
893 | /*****************************************************************************/ |
606 | |
894 | |
607 | void inline_size |
895 | inline_speed void |
608 | anfds_init (ANFD *base, int count) |
|
|
609 | { |
|
|
610 | while (count--) |
|
|
611 | { |
|
|
612 | base->head = 0; |
|
|
613 | base->events = EV_NONE; |
|
|
614 | base->reify = 0; |
|
|
615 | |
|
|
616 | ++base; |
|
|
617 | } |
|
|
618 | } |
|
|
619 | |
|
|
620 | void inline_speed |
|
|
621 | fd_event (EV_P_ int fd, int revents) |
896 | fd_event_nc (EV_P_ int fd, int revents) |
622 | { |
897 | { |
623 | ANFD *anfd = anfds + fd; |
898 | ANFD *anfd = anfds + fd; |
624 | ev_io *w; |
899 | ev_io *w; |
625 | |
900 | |
626 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
901 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
630 | if (ev) |
905 | if (ev) |
631 | ev_feed_event (EV_A_ (W)w, ev); |
906 | ev_feed_event (EV_A_ (W)w, ev); |
632 | } |
907 | } |
633 | } |
908 | } |
634 | |
909 | |
|
|
910 | /* do not submit kernel events for fds that have reify set */ |
|
|
911 | /* because that means they changed while we were polling for new events */ |
|
|
912 | inline_speed void |
|
|
913 | fd_event (EV_P_ int fd, int revents) |
|
|
914 | { |
|
|
915 | ANFD *anfd = anfds + fd; |
|
|
916 | |
|
|
917 | if (expect_true (!anfd->reify)) |
|
|
918 | fd_event_nc (EV_A_ fd, revents); |
|
|
919 | } |
|
|
920 | |
635 | void |
921 | void |
636 | ev_feed_fd_event (EV_P_ int fd, int revents) |
922 | ev_feed_fd_event (EV_P_ int fd, int revents) |
637 | { |
923 | { |
638 | if (fd >= 0 && fd < anfdmax) |
924 | if (fd >= 0 && fd < anfdmax) |
639 | fd_event (EV_A_ fd, revents); |
925 | fd_event_nc (EV_A_ fd, revents); |
640 | } |
926 | } |
641 | |
927 | |
642 | void inline_size |
928 | /* make sure the external fd watch events are in-sync */ |
|
|
929 | /* with the kernel/libev internal state */ |
|
|
930 | inline_size void |
643 | fd_reify (EV_P) |
931 | fd_reify (EV_P) |
644 | { |
932 | { |
645 | int i; |
933 | int i; |
646 | |
934 | |
647 | for (i = 0; i < fdchangecnt; ++i) |
935 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
656 | events |= (unsigned char)w->events; |
944 | events |= (unsigned char)w->events; |
657 | |
945 | |
658 | #if EV_SELECT_IS_WINSOCKET |
946 | #if EV_SELECT_IS_WINSOCKET |
659 | if (events) |
947 | if (events) |
660 | { |
948 | { |
661 | unsigned long argp; |
949 | unsigned long arg; |
662 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
663 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
950 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
664 | #else |
|
|
665 | anfd->handle = _get_osfhandle (fd); |
|
|
666 | #endif |
|
|
667 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
951 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
668 | } |
952 | } |
669 | #endif |
953 | #endif |
670 | |
954 | |
671 | { |
955 | { |
672 | unsigned char o_events = anfd->events; |
956 | unsigned char o_events = anfd->events; |
673 | unsigned char o_reify = anfd->reify; |
957 | unsigned char o_reify = anfd->reify; |
674 | |
958 | |
675 | anfd->reify = 0; |
959 | anfd->reify = 0; |
676 | anfd->events = events; |
960 | anfd->events = events; |
677 | |
961 | |
678 | if (o_events != events || o_reify & EV_IOFDSET) |
962 | if (o_events != events || o_reify & EV__IOFDSET) |
679 | backend_modify (EV_A_ fd, o_events, events); |
963 | backend_modify (EV_A_ fd, o_events, events); |
680 | } |
964 | } |
681 | } |
965 | } |
682 | |
966 | |
683 | fdchangecnt = 0; |
967 | fdchangecnt = 0; |
684 | } |
968 | } |
685 | |
969 | |
686 | void inline_size |
970 | /* something about the given fd changed */ |
|
|
971 | inline_size void |
687 | fd_change (EV_P_ int fd, int flags) |
972 | fd_change (EV_P_ int fd, int flags) |
688 | { |
973 | { |
689 | unsigned char reify = anfds [fd].reify; |
974 | unsigned char reify = anfds [fd].reify; |
690 | anfds [fd].reify |= flags; |
975 | anfds [fd].reify |= flags; |
691 | |
976 | |
… | |
… | |
695 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
980 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
696 | fdchanges [fdchangecnt - 1] = fd; |
981 | fdchanges [fdchangecnt - 1] = fd; |
697 | } |
982 | } |
698 | } |
983 | } |
699 | |
984 | |
700 | void inline_speed |
985 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
986 | inline_speed void |
701 | fd_kill (EV_P_ int fd) |
987 | fd_kill (EV_P_ int fd) |
702 | { |
988 | { |
703 | ev_io *w; |
989 | ev_io *w; |
704 | |
990 | |
705 | while ((w = (ev_io *)anfds [fd].head)) |
991 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
707 | ev_io_stop (EV_A_ w); |
993 | ev_io_stop (EV_A_ w); |
708 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
994 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
709 | } |
995 | } |
710 | } |
996 | } |
711 | |
997 | |
712 | int inline_size |
998 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
999 | inline_size int |
713 | fd_valid (int fd) |
1000 | fd_valid (int fd) |
714 | { |
1001 | { |
715 | #ifdef _WIN32 |
1002 | #ifdef _WIN32 |
716 | return _get_osfhandle (fd) != -1; |
1003 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
717 | #else |
1004 | #else |
718 | return fcntl (fd, F_GETFD) != -1; |
1005 | return fcntl (fd, F_GETFD) != -1; |
719 | #endif |
1006 | #endif |
720 | } |
1007 | } |
721 | |
1008 | |
… | |
… | |
725 | { |
1012 | { |
726 | int fd; |
1013 | int fd; |
727 | |
1014 | |
728 | for (fd = 0; fd < anfdmax; ++fd) |
1015 | for (fd = 0; fd < anfdmax; ++fd) |
729 | if (anfds [fd].events) |
1016 | if (anfds [fd].events) |
730 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1017 | if (!fd_valid (fd) && errno == EBADF) |
731 | fd_kill (EV_A_ fd); |
1018 | fd_kill (EV_A_ fd); |
732 | } |
1019 | } |
733 | |
1020 | |
734 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1021 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
735 | static void noinline |
1022 | static void noinline |
… | |
… | |
739 | |
1026 | |
740 | for (fd = anfdmax; fd--; ) |
1027 | for (fd = anfdmax; fd--; ) |
741 | if (anfds [fd].events) |
1028 | if (anfds [fd].events) |
742 | { |
1029 | { |
743 | fd_kill (EV_A_ fd); |
1030 | fd_kill (EV_A_ fd); |
744 | return; |
1031 | break; |
745 | } |
1032 | } |
746 | } |
1033 | } |
747 | |
1034 | |
748 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1035 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
749 | static void noinline |
1036 | static void noinline |
… | |
… | |
753 | |
1040 | |
754 | for (fd = 0; fd < anfdmax; ++fd) |
1041 | for (fd = 0; fd < anfdmax; ++fd) |
755 | if (anfds [fd].events) |
1042 | if (anfds [fd].events) |
756 | { |
1043 | { |
757 | anfds [fd].events = 0; |
1044 | anfds [fd].events = 0; |
|
|
1045 | anfds [fd].emask = 0; |
758 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1046 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
759 | } |
1047 | } |
760 | } |
1048 | } |
761 | |
1049 | |
|
|
1050 | /* used to prepare libev internal fd's */ |
|
|
1051 | /* this is not fork-safe */ |
|
|
1052 | inline_speed void |
|
|
1053 | fd_intern (int fd) |
|
|
1054 | { |
|
|
1055 | #ifdef _WIN32 |
|
|
1056 | unsigned long arg = 1; |
|
|
1057 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1058 | #else |
|
|
1059 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1060 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1061 | #endif |
|
|
1062 | } |
|
|
1063 | |
762 | /*****************************************************************************/ |
1064 | /*****************************************************************************/ |
|
|
1065 | |
|
|
1066 | /* |
|
|
1067 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
1068 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1069 | * the branching factor of the d-tree. |
|
|
1070 | */ |
763 | |
1071 | |
764 | /* |
1072 | /* |
765 | * at the moment we allow libev the luxury of two heaps, |
1073 | * at the moment we allow libev the luxury of two heaps, |
766 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
1074 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
767 | * which is more cache-efficient. |
1075 | * which is more cache-efficient. |
768 | * the difference is about 5% with 50000+ watchers. |
1076 | * the difference is about 5% with 50000+ watchers. |
769 | */ |
1077 | */ |
770 | #define USE_4HEAP !EV_MINIMAL |
|
|
771 | #if USE_4HEAP |
1078 | #if EV_USE_4HEAP |
772 | |
1079 | |
773 | #define DHEAP 4 |
1080 | #define DHEAP 4 |
774 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1081 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1082 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1083 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
775 | |
1084 | |
776 | /* towards the root */ |
1085 | /* away from the root */ |
777 | void inline_speed |
1086 | inline_speed void |
778 | upheap (WT *heap, int k) |
1087 | downheap (ANHE *heap, int N, int k) |
779 | { |
1088 | { |
780 | WT w = heap [k]; |
1089 | ANHE he = heap [k]; |
781 | ev_tstamp w_at = w->at; |
1090 | ANHE *E = heap + N + HEAP0; |
782 | |
1091 | |
783 | for (;;) |
1092 | for (;;) |
784 | { |
1093 | { |
785 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
786 | |
|
|
787 | if (p == k || heap [p]->at <= w_at) |
|
|
788 | break; |
|
|
789 | |
|
|
790 | heap [k] = heap [p]; |
|
|
791 | ev_active (heap [k]) = k; |
|
|
792 | k = p; |
|
|
793 | } |
|
|
794 | |
|
|
795 | heap [k] = w; |
|
|
796 | ev_active (heap [k]) = k; |
|
|
797 | } |
|
|
798 | |
|
|
799 | /* away from the root */ |
|
|
800 | void inline_speed |
|
|
801 | downheap (WT *heap, int N, int k) |
|
|
802 | { |
|
|
803 | WT w = heap [k]; |
|
|
804 | WT *E = heap + N + HEAP0; |
|
|
805 | |
|
|
806 | for (;;) |
|
|
807 | { |
|
|
808 | ev_tstamp minat; |
1094 | ev_tstamp minat; |
809 | WT *minpos; |
1095 | ANHE *minpos; |
810 | WT *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
1096 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
811 | |
1097 | |
812 | // find minimum child |
1098 | /* find minimum child */ |
813 | if (expect_true (pos + DHEAP - 1 < E)) |
1099 | if (expect_true (pos + DHEAP - 1 < E)) |
814 | { |
1100 | { |
815 | /* fast path */ (minpos = pos + 0), (minat = (*minpos)->at); |
1101 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
816 | if (pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
1102 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
817 | if (pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
1103 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
818 | if (pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
1104 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
819 | } |
1105 | } |
820 | else if (pos < E) |
1106 | else if (pos < E) |
821 | { |
1107 | { |
822 | /* slow path */ (minpos = pos + 0), (minat = (*minpos)->at); |
1108 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
823 | if (pos + 1 < E && pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
1109 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
824 | if (pos + 2 < E && pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
1110 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
825 | if (pos + 3 < E && pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
1111 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
826 | } |
1112 | } |
827 | else |
1113 | else |
828 | break; |
1114 | break; |
829 | |
1115 | |
830 | if (w->at <= minat) |
1116 | if (ANHE_at (he) <= minat) |
831 | break; |
1117 | break; |
832 | |
1118 | |
833 | ev_active (*minpos) = k; |
|
|
834 | heap [k] = *minpos; |
1119 | heap [k] = *minpos; |
|
|
1120 | ev_active (ANHE_w (*minpos)) = k; |
835 | |
1121 | |
836 | k = minpos - heap; |
1122 | k = minpos - heap; |
837 | } |
1123 | } |
838 | |
1124 | |
839 | heap [k] = w; |
1125 | heap [k] = he; |
840 | ev_active (heap [k]) = k; |
1126 | ev_active (ANHE_w (he)) = k; |
841 | } |
1127 | } |
842 | |
1128 | |
843 | #else // 4HEAP |
1129 | #else /* 4HEAP */ |
844 | |
1130 | |
845 | #define HEAP0 1 |
1131 | #define HEAP0 1 |
|
|
1132 | #define HPARENT(k) ((k) >> 1) |
|
|
1133 | #define UPHEAP_DONE(p,k) (!(p)) |
846 | |
1134 | |
847 | /* towards the root */ |
1135 | /* away from the root */ |
848 | void inline_speed |
1136 | inline_speed void |
849 | upheap (WT *heap, int k) |
1137 | downheap (ANHE *heap, int N, int k) |
850 | { |
1138 | { |
851 | WT w = heap [k]; |
1139 | ANHE he = heap [k]; |
852 | |
1140 | |
853 | for (;;) |
1141 | for (;;) |
854 | { |
1142 | { |
855 | int p = k >> 1; |
1143 | int c = k << 1; |
856 | |
1144 | |
857 | /* maybe we could use a dummy element at heap [0]? */ |
1145 | if (c >= N + HEAP0) |
858 | if (!p || heap [p]->at <= w->at) |
|
|
859 | break; |
1146 | break; |
860 | |
1147 | |
861 | heap [k] = heap [p]; |
1148 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
862 | ev_active (heap [k]) = k; |
1149 | ? 1 : 0; |
863 | k = p; |
|
|
864 | } |
|
|
865 | |
1150 | |
866 | heap [k] = w; |
1151 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
867 | ev_active (heap [k]) = k; |
|
|
868 | } |
|
|
869 | |
|
|
870 | /* away from the root */ |
|
|
871 | void inline_speed |
|
|
872 | downheap (WT *heap, int N, int k) |
|
|
873 | { |
|
|
874 | WT w = heap [k]; |
|
|
875 | |
|
|
876 | for (;;) |
|
|
877 | { |
|
|
878 | int c = k << 1; |
|
|
879 | |
|
|
880 | if (c > N) |
|
|
881 | break; |
1152 | break; |
882 | |
1153 | |
883 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
884 | ? 1 : 0; |
|
|
885 | |
|
|
886 | if (w->at <= heap [c]->at) |
|
|
887 | break; |
|
|
888 | |
|
|
889 | heap [k] = heap [c]; |
1154 | heap [k] = heap [c]; |
890 | ((W)heap [k])->active = k; |
1155 | ev_active (ANHE_w (heap [k])) = k; |
891 | |
1156 | |
892 | k = c; |
1157 | k = c; |
893 | } |
1158 | } |
894 | |
1159 | |
895 | heap [k] = w; |
1160 | heap [k] = he; |
|
|
1161 | ev_active (ANHE_w (he)) = k; |
|
|
1162 | } |
|
|
1163 | #endif |
|
|
1164 | |
|
|
1165 | /* towards the root */ |
|
|
1166 | inline_speed void |
|
|
1167 | upheap (ANHE *heap, int k) |
|
|
1168 | { |
|
|
1169 | ANHE he = heap [k]; |
|
|
1170 | |
|
|
1171 | for (;;) |
|
|
1172 | { |
|
|
1173 | int p = HPARENT (k); |
|
|
1174 | |
|
|
1175 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1176 | break; |
|
|
1177 | |
|
|
1178 | heap [k] = heap [p]; |
896 | ev_active (heap [k]) = k; |
1179 | ev_active (ANHE_w (heap [k])) = k; |
897 | } |
1180 | k = p; |
898 | #endif |
1181 | } |
899 | |
1182 | |
900 | void inline_size |
1183 | heap [k] = he; |
|
|
1184 | ev_active (ANHE_w (he)) = k; |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | /* move an element suitably so it is in a correct place */ |
|
|
1188 | inline_size void |
901 | adjustheap (WT *heap, int N, int k) |
1189 | adjustheap (ANHE *heap, int N, int k) |
902 | { |
1190 | { |
|
|
1191 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
903 | upheap (heap, k); |
1192 | upheap (heap, k); |
|
|
1193 | else |
904 | downheap (heap, N, k); |
1194 | downheap (heap, N, k); |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1198 | inline_size void |
|
|
1199 | reheap (ANHE *heap, int N) |
|
|
1200 | { |
|
|
1201 | int i; |
|
|
1202 | |
|
|
1203 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1204 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1205 | for (i = 0; i < N; ++i) |
|
|
1206 | upheap (heap, i + HEAP0); |
905 | } |
1207 | } |
906 | |
1208 | |
907 | /*****************************************************************************/ |
1209 | /*****************************************************************************/ |
908 | |
1210 | |
|
|
1211 | /* associate signal watchers to a signal signal */ |
909 | typedef struct |
1212 | typedef struct |
910 | { |
1213 | { |
|
|
1214 | EV_ATOMIC_T pending; |
|
|
1215 | #if EV_MULTIPLICITY |
|
|
1216 | EV_P; |
|
|
1217 | #endif |
911 | WL head; |
1218 | WL head; |
912 | EV_ATOMIC_T gotsig; |
|
|
913 | } ANSIG; |
1219 | } ANSIG; |
914 | |
1220 | |
915 | static ANSIG *signals; |
1221 | static ANSIG signals [EV_NSIG - 1]; |
916 | static int signalmax; |
|
|
917 | |
|
|
918 | static EV_ATOMIC_T gotsig; |
|
|
919 | |
|
|
920 | void inline_size |
|
|
921 | signals_init (ANSIG *base, int count) |
|
|
922 | { |
|
|
923 | while (count--) |
|
|
924 | { |
|
|
925 | base->head = 0; |
|
|
926 | base->gotsig = 0; |
|
|
927 | |
|
|
928 | ++base; |
|
|
929 | } |
|
|
930 | } |
|
|
931 | |
1222 | |
932 | /*****************************************************************************/ |
1223 | /*****************************************************************************/ |
933 | |
1224 | |
934 | void inline_speed |
1225 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
935 | fd_intern (int fd) |
|
|
936 | { |
|
|
937 | #ifdef _WIN32 |
|
|
938 | int arg = 1; |
|
|
939 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
940 | #else |
|
|
941 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
942 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
943 | #endif |
|
|
944 | } |
|
|
945 | |
1226 | |
946 | static void noinline |
1227 | static void noinline |
947 | evpipe_init (EV_P) |
1228 | evpipe_init (EV_P) |
948 | { |
1229 | { |
949 | if (!ev_is_active (&pipeev)) |
1230 | if (!ev_is_active (&pipe_w)) |
950 | { |
1231 | { |
951 | #if EV_USE_EVENTFD |
1232 | # if EV_USE_EVENTFD |
|
|
1233 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1234 | if (evfd < 0 && errno == EINVAL) |
952 | if ((evfd = eventfd (0, 0)) >= 0) |
1235 | evfd = eventfd (0, 0); |
|
|
1236 | |
|
|
1237 | if (evfd >= 0) |
953 | { |
1238 | { |
954 | evpipe [0] = -1; |
1239 | evpipe [0] = -1; |
955 | fd_intern (evfd); |
1240 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
956 | ev_io_set (&pipeev, evfd, EV_READ); |
1241 | ev_io_set (&pipe_w, evfd, EV_READ); |
957 | } |
1242 | } |
958 | else |
1243 | else |
959 | #endif |
1244 | # endif |
960 | { |
1245 | { |
961 | while (pipe (evpipe)) |
1246 | while (pipe (evpipe)) |
962 | syserr ("(libev) error creating signal/async pipe"); |
1247 | ev_syserr ("(libev) error creating signal/async pipe"); |
963 | |
1248 | |
964 | fd_intern (evpipe [0]); |
1249 | fd_intern (evpipe [0]); |
965 | fd_intern (evpipe [1]); |
1250 | fd_intern (evpipe [1]); |
966 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1251 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
967 | } |
1252 | } |
968 | |
1253 | |
969 | ev_io_start (EV_A_ &pipeev); |
1254 | ev_io_start (EV_A_ &pipe_w); |
970 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1255 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
971 | } |
1256 | } |
972 | } |
1257 | } |
973 | |
1258 | |
974 | void inline_size |
1259 | inline_size void |
975 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1260 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
976 | { |
1261 | { |
977 | if (!*flag) |
1262 | if (!*flag) |
978 | { |
1263 | { |
979 | int old_errno = errno; /* save errno because write might clobber it */ |
1264 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1265 | char dummy; |
980 | |
1266 | |
981 | *flag = 1; |
1267 | *flag = 1; |
982 | |
1268 | |
983 | #if EV_USE_EVENTFD |
1269 | #if EV_USE_EVENTFD |
984 | if (evfd >= 0) |
1270 | if (evfd >= 0) |
… | |
… | |
986 | uint64_t counter = 1; |
1272 | uint64_t counter = 1; |
987 | write (evfd, &counter, sizeof (uint64_t)); |
1273 | write (evfd, &counter, sizeof (uint64_t)); |
988 | } |
1274 | } |
989 | else |
1275 | else |
990 | #endif |
1276 | #endif |
991 | write (evpipe [1], &old_errno, 1); |
1277 | write (evpipe [1], &dummy, 1); |
992 | |
1278 | |
993 | errno = old_errno; |
1279 | errno = old_errno; |
994 | } |
1280 | } |
995 | } |
1281 | } |
996 | |
1282 | |
|
|
1283 | /* called whenever the libev signal pipe */ |
|
|
1284 | /* got some events (signal, async) */ |
997 | static void |
1285 | static void |
998 | pipecb (EV_P_ ev_io *iow, int revents) |
1286 | pipecb (EV_P_ ev_io *iow, int revents) |
999 | { |
1287 | { |
|
|
1288 | int i; |
|
|
1289 | |
1000 | #if EV_USE_EVENTFD |
1290 | #if EV_USE_EVENTFD |
1001 | if (evfd >= 0) |
1291 | if (evfd >= 0) |
1002 | { |
1292 | { |
1003 | uint64_t counter; |
1293 | uint64_t counter; |
1004 | read (evfd, &counter, sizeof (uint64_t)); |
1294 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1008 | { |
1298 | { |
1009 | char dummy; |
1299 | char dummy; |
1010 | read (evpipe [0], &dummy, 1); |
1300 | read (evpipe [0], &dummy, 1); |
1011 | } |
1301 | } |
1012 | |
1302 | |
1013 | if (gotsig && ev_is_default_loop (EV_A)) |
1303 | if (sig_pending) |
1014 | { |
1304 | { |
1015 | int signum; |
1305 | sig_pending = 0; |
1016 | gotsig = 0; |
|
|
1017 | |
1306 | |
1018 | for (signum = signalmax; signum--; ) |
1307 | for (i = EV_NSIG - 1; i--; ) |
1019 | if (signals [signum].gotsig) |
1308 | if (expect_false (signals [i].pending)) |
1020 | ev_feed_signal_event (EV_A_ signum + 1); |
1309 | ev_feed_signal_event (EV_A_ i + 1); |
1021 | } |
1310 | } |
1022 | |
1311 | |
1023 | #if EV_ASYNC_ENABLE |
1312 | #if EV_ASYNC_ENABLE |
1024 | if (gotasync) |
1313 | if (async_pending) |
1025 | { |
1314 | { |
1026 | int i; |
1315 | async_pending = 0; |
1027 | gotasync = 0; |
|
|
1028 | |
1316 | |
1029 | for (i = asynccnt; i--; ) |
1317 | for (i = asynccnt; i--; ) |
1030 | if (asyncs [i]->sent) |
1318 | if (asyncs [i]->sent) |
1031 | { |
1319 | { |
1032 | asyncs [i]->sent = 0; |
1320 | asyncs [i]->sent = 0; |
… | |
… | |
1040 | |
1328 | |
1041 | static void |
1329 | static void |
1042 | ev_sighandler (int signum) |
1330 | ev_sighandler (int signum) |
1043 | { |
1331 | { |
1044 | #if EV_MULTIPLICITY |
1332 | #if EV_MULTIPLICITY |
1045 | struct ev_loop *loop = &default_loop_struct; |
1333 | EV_P = signals [signum - 1].loop; |
1046 | #endif |
1334 | #endif |
1047 | |
1335 | |
1048 | #if _WIN32 |
1336 | #ifdef _WIN32 |
1049 | signal (signum, ev_sighandler); |
1337 | signal (signum, ev_sighandler); |
1050 | #endif |
1338 | #endif |
1051 | |
1339 | |
1052 | signals [signum - 1].gotsig = 1; |
1340 | signals [signum - 1].pending = 1; |
1053 | evpipe_write (EV_A_ &gotsig); |
1341 | evpipe_write (EV_A_ &sig_pending); |
1054 | } |
1342 | } |
1055 | |
1343 | |
1056 | void noinline |
1344 | void noinline |
1057 | ev_feed_signal_event (EV_P_ int signum) |
1345 | ev_feed_signal_event (EV_P_ int signum) |
1058 | { |
1346 | { |
1059 | WL w; |
1347 | WL w; |
1060 | |
1348 | |
|
|
1349 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1350 | return; |
|
|
1351 | |
|
|
1352 | --signum; |
|
|
1353 | |
1061 | #if EV_MULTIPLICITY |
1354 | #if EV_MULTIPLICITY |
1062 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1355 | /* it is permissible to try to feed a signal to the wrong loop */ |
1063 | #endif |
1356 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1064 | |
1357 | |
1065 | --signum; |
1358 | if (expect_false (signals [signum].loop != EV_A)) |
1066 | |
|
|
1067 | if (signum < 0 || signum >= signalmax) |
|
|
1068 | return; |
1359 | return; |
|
|
1360 | #endif |
1069 | |
1361 | |
1070 | signals [signum].gotsig = 0; |
1362 | signals [signum].pending = 0; |
1071 | |
1363 | |
1072 | for (w = signals [signum].head; w; w = w->next) |
1364 | for (w = signals [signum].head; w; w = w->next) |
1073 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1365 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1074 | } |
1366 | } |
1075 | |
1367 | |
|
|
1368 | #if EV_USE_SIGNALFD |
|
|
1369 | static void |
|
|
1370 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1371 | { |
|
|
1372 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1373 | |
|
|
1374 | for (;;) |
|
|
1375 | { |
|
|
1376 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1377 | |
|
|
1378 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1379 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1380 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1381 | |
|
|
1382 | if (res < (ssize_t)sizeof (si)) |
|
|
1383 | break; |
|
|
1384 | } |
|
|
1385 | } |
|
|
1386 | #endif |
|
|
1387 | |
|
|
1388 | #endif |
|
|
1389 | |
1076 | /*****************************************************************************/ |
1390 | /*****************************************************************************/ |
1077 | |
1391 | |
|
|
1392 | #if EV_CHILD_ENABLE |
1078 | static WL childs [EV_PID_HASHSIZE]; |
1393 | static WL childs [EV_PID_HASHSIZE]; |
1079 | |
|
|
1080 | #ifndef _WIN32 |
|
|
1081 | |
1394 | |
1082 | static ev_signal childev; |
1395 | static ev_signal childev; |
1083 | |
1396 | |
1084 | #ifndef WIFCONTINUED |
1397 | #ifndef WIFCONTINUED |
1085 | # define WIFCONTINUED(status) 0 |
1398 | # define WIFCONTINUED(status) 0 |
1086 | #endif |
1399 | #endif |
1087 | |
1400 | |
1088 | void inline_speed |
1401 | /* handle a single child status event */ |
|
|
1402 | inline_speed void |
1089 | child_reap (EV_P_ int chain, int pid, int status) |
1403 | child_reap (EV_P_ int chain, int pid, int status) |
1090 | { |
1404 | { |
1091 | ev_child *w; |
1405 | ev_child *w; |
1092 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1406 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1093 | |
1407 | |
… | |
… | |
1106 | |
1420 | |
1107 | #ifndef WCONTINUED |
1421 | #ifndef WCONTINUED |
1108 | # define WCONTINUED 0 |
1422 | # define WCONTINUED 0 |
1109 | #endif |
1423 | #endif |
1110 | |
1424 | |
|
|
1425 | /* called on sigchld etc., calls waitpid */ |
1111 | static void |
1426 | static void |
1112 | childcb (EV_P_ ev_signal *sw, int revents) |
1427 | childcb (EV_P_ ev_signal *sw, int revents) |
1113 | { |
1428 | { |
1114 | int pid, status; |
1429 | int pid, status; |
1115 | |
1430 | |
… | |
… | |
1196 | /* kqueue is borked on everything but netbsd apparently */ |
1511 | /* kqueue is borked on everything but netbsd apparently */ |
1197 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1512 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1198 | flags &= ~EVBACKEND_KQUEUE; |
1513 | flags &= ~EVBACKEND_KQUEUE; |
1199 | #endif |
1514 | #endif |
1200 | #ifdef __APPLE__ |
1515 | #ifdef __APPLE__ |
1201 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1516 | /* only select works correctly on that "unix-certified" platform */ |
1202 | flags &= ~EVBACKEND_POLL; |
1517 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1518 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1203 | #endif |
1519 | #endif |
1204 | |
1520 | |
1205 | return flags; |
1521 | return flags; |
1206 | } |
1522 | } |
1207 | |
1523 | |
… | |
… | |
1221 | ev_backend (EV_P) |
1537 | ev_backend (EV_P) |
1222 | { |
1538 | { |
1223 | return backend; |
1539 | return backend; |
1224 | } |
1540 | } |
1225 | |
1541 | |
|
|
1542 | #if EV_MINIMAL < 2 |
1226 | unsigned int |
1543 | unsigned int |
1227 | ev_loop_count (EV_P) |
1544 | ev_loop_count (EV_P) |
1228 | { |
1545 | { |
1229 | return loop_count; |
1546 | return loop_count; |
1230 | } |
1547 | } |
1231 | |
1548 | |
|
|
1549 | unsigned int |
|
|
1550 | ev_loop_depth (EV_P) |
|
|
1551 | { |
|
|
1552 | return loop_depth; |
|
|
1553 | } |
|
|
1554 | |
1232 | void |
1555 | void |
1233 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1556 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1234 | { |
1557 | { |
1235 | io_blocktime = interval; |
1558 | io_blocktime = interval; |
1236 | } |
1559 | } |
… | |
… | |
1239 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1562 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1240 | { |
1563 | { |
1241 | timeout_blocktime = interval; |
1564 | timeout_blocktime = interval; |
1242 | } |
1565 | } |
1243 | |
1566 | |
|
|
1567 | void |
|
|
1568 | ev_set_userdata (EV_P_ void *data) |
|
|
1569 | { |
|
|
1570 | userdata = data; |
|
|
1571 | } |
|
|
1572 | |
|
|
1573 | void * |
|
|
1574 | ev_userdata (EV_P) |
|
|
1575 | { |
|
|
1576 | return userdata; |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1580 | { |
|
|
1581 | invoke_cb = invoke_pending_cb; |
|
|
1582 | } |
|
|
1583 | |
|
|
1584 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1585 | { |
|
|
1586 | release_cb = release; |
|
|
1587 | acquire_cb = acquire; |
|
|
1588 | } |
|
|
1589 | #endif |
|
|
1590 | |
|
|
1591 | /* initialise a loop structure, must be zero-initialised */ |
1244 | static void noinline |
1592 | static void noinline |
1245 | loop_init (EV_P_ unsigned int flags) |
1593 | loop_init (EV_P_ unsigned int flags) |
1246 | { |
1594 | { |
1247 | if (!backend) |
1595 | if (!backend) |
1248 | { |
1596 | { |
|
|
1597 | #if EV_USE_REALTIME |
|
|
1598 | if (!have_realtime) |
|
|
1599 | { |
|
|
1600 | struct timespec ts; |
|
|
1601 | |
|
|
1602 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1603 | have_realtime = 1; |
|
|
1604 | } |
|
|
1605 | #endif |
|
|
1606 | |
1249 | #if EV_USE_MONOTONIC |
1607 | #if EV_USE_MONOTONIC |
|
|
1608 | if (!have_monotonic) |
1250 | { |
1609 | { |
1251 | struct timespec ts; |
1610 | struct timespec ts; |
|
|
1611 | |
1252 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1612 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1253 | have_monotonic = 1; |
1613 | have_monotonic = 1; |
1254 | } |
1614 | } |
1255 | #endif |
1615 | #endif |
|
|
1616 | |
|
|
1617 | /* pid check not overridable via env */ |
|
|
1618 | #ifndef _WIN32 |
|
|
1619 | if (flags & EVFLAG_FORKCHECK) |
|
|
1620 | curpid = getpid (); |
|
|
1621 | #endif |
|
|
1622 | |
|
|
1623 | if (!(flags & EVFLAG_NOENV) |
|
|
1624 | && !enable_secure () |
|
|
1625 | && getenv ("LIBEV_FLAGS")) |
|
|
1626 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1256 | |
1627 | |
1257 | ev_rt_now = ev_time (); |
1628 | ev_rt_now = ev_time (); |
1258 | mn_now = get_clock (); |
1629 | mn_now = get_clock (); |
1259 | now_floor = mn_now; |
1630 | now_floor = mn_now; |
1260 | rtmn_diff = ev_rt_now - mn_now; |
1631 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1632 | #if EV_MINIMAL < 2 |
|
|
1633 | invoke_cb = ev_invoke_pending; |
|
|
1634 | #endif |
1261 | |
1635 | |
1262 | io_blocktime = 0.; |
1636 | io_blocktime = 0.; |
1263 | timeout_blocktime = 0.; |
1637 | timeout_blocktime = 0.; |
1264 | backend = 0; |
1638 | backend = 0; |
1265 | backend_fd = -1; |
1639 | backend_fd = -1; |
1266 | gotasync = 0; |
1640 | sig_pending = 0; |
|
|
1641 | #if EV_ASYNC_ENABLE |
|
|
1642 | async_pending = 0; |
|
|
1643 | #endif |
1267 | #if EV_USE_INOTIFY |
1644 | #if EV_USE_INOTIFY |
1268 | fs_fd = -2; |
1645 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1269 | #endif |
1646 | #endif |
1270 | |
1647 | #if EV_USE_SIGNALFD |
1271 | /* pid check not overridable via env */ |
1648 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1272 | #ifndef _WIN32 |
|
|
1273 | if (flags & EVFLAG_FORKCHECK) |
|
|
1274 | curpid = getpid (); |
|
|
1275 | #endif |
1649 | #endif |
1276 | |
|
|
1277 | if (!(flags & EVFLAG_NOENV) |
|
|
1278 | && !enable_secure () |
|
|
1279 | && getenv ("LIBEV_FLAGS")) |
|
|
1280 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1281 | |
1650 | |
1282 | if (!(flags & 0x0000ffffU)) |
1651 | if (!(flags & 0x0000ffffU)) |
1283 | flags |= ev_recommended_backends (); |
1652 | flags |= ev_recommended_backends (); |
1284 | |
1653 | |
1285 | #if EV_USE_PORT |
1654 | #if EV_USE_PORT |
… | |
… | |
1296 | #endif |
1665 | #endif |
1297 | #if EV_USE_SELECT |
1666 | #if EV_USE_SELECT |
1298 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1667 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1299 | #endif |
1668 | #endif |
1300 | |
1669 | |
|
|
1670 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1671 | |
|
|
1672 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1301 | ev_init (&pipeev, pipecb); |
1673 | ev_init (&pipe_w, pipecb); |
1302 | ev_set_priority (&pipeev, EV_MAXPRI); |
1674 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1675 | #endif |
1303 | } |
1676 | } |
1304 | } |
1677 | } |
1305 | |
1678 | |
|
|
1679 | /* free up a loop structure */ |
1306 | static void noinline |
1680 | static void noinline |
1307 | loop_destroy (EV_P) |
1681 | loop_destroy (EV_P) |
1308 | { |
1682 | { |
1309 | int i; |
1683 | int i; |
1310 | |
1684 | |
1311 | if (ev_is_active (&pipeev)) |
1685 | if (ev_is_active (&pipe_w)) |
1312 | { |
1686 | { |
1313 | ev_ref (EV_A); /* signal watcher */ |
1687 | /*ev_ref (EV_A);*/ |
1314 | ev_io_stop (EV_A_ &pipeev); |
1688 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1315 | |
1689 | |
1316 | #if EV_USE_EVENTFD |
1690 | #if EV_USE_EVENTFD |
1317 | if (evfd >= 0) |
1691 | if (evfd >= 0) |
1318 | close (evfd); |
1692 | close (evfd); |
1319 | #endif |
1693 | #endif |
1320 | |
1694 | |
1321 | if (evpipe [0] >= 0) |
1695 | if (evpipe [0] >= 0) |
1322 | { |
1696 | { |
1323 | close (evpipe [0]); |
1697 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1324 | close (evpipe [1]); |
1698 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1325 | } |
1699 | } |
1326 | } |
1700 | } |
|
|
1701 | |
|
|
1702 | #if EV_USE_SIGNALFD |
|
|
1703 | if (ev_is_active (&sigfd_w)) |
|
|
1704 | close (sigfd); |
|
|
1705 | #endif |
1327 | |
1706 | |
1328 | #if EV_USE_INOTIFY |
1707 | #if EV_USE_INOTIFY |
1329 | if (fs_fd >= 0) |
1708 | if (fs_fd >= 0) |
1330 | close (fs_fd); |
1709 | close (fs_fd); |
1331 | #endif |
1710 | #endif |
… | |
… | |
1355 | #if EV_IDLE_ENABLE |
1734 | #if EV_IDLE_ENABLE |
1356 | array_free (idle, [i]); |
1735 | array_free (idle, [i]); |
1357 | #endif |
1736 | #endif |
1358 | } |
1737 | } |
1359 | |
1738 | |
1360 | ev_free (anfds); anfdmax = 0; |
1739 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1361 | |
1740 | |
1362 | /* have to use the microsoft-never-gets-it-right macro */ |
1741 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1742 | array_free (rfeed, EMPTY); |
1363 | array_free (fdchange, EMPTY); |
1743 | array_free (fdchange, EMPTY); |
1364 | array_free (timer, EMPTY); |
1744 | array_free (timer, EMPTY); |
1365 | #if EV_PERIODIC_ENABLE |
1745 | #if EV_PERIODIC_ENABLE |
1366 | array_free (periodic, EMPTY); |
1746 | array_free (periodic, EMPTY); |
1367 | #endif |
1747 | #endif |
… | |
… | |
1376 | |
1756 | |
1377 | backend = 0; |
1757 | backend = 0; |
1378 | } |
1758 | } |
1379 | |
1759 | |
1380 | #if EV_USE_INOTIFY |
1760 | #if EV_USE_INOTIFY |
1381 | void inline_size infy_fork (EV_P); |
1761 | inline_size void infy_fork (EV_P); |
1382 | #endif |
1762 | #endif |
1383 | |
1763 | |
1384 | void inline_size |
1764 | inline_size void |
1385 | loop_fork (EV_P) |
1765 | loop_fork (EV_P) |
1386 | { |
1766 | { |
1387 | #if EV_USE_PORT |
1767 | #if EV_USE_PORT |
1388 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1768 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1389 | #endif |
1769 | #endif |
… | |
… | |
1395 | #endif |
1775 | #endif |
1396 | #if EV_USE_INOTIFY |
1776 | #if EV_USE_INOTIFY |
1397 | infy_fork (EV_A); |
1777 | infy_fork (EV_A); |
1398 | #endif |
1778 | #endif |
1399 | |
1779 | |
1400 | if (ev_is_active (&pipeev)) |
1780 | if (ev_is_active (&pipe_w)) |
1401 | { |
1781 | { |
1402 | /* this "locks" the handlers against writing to the pipe */ |
1782 | /* this "locks" the handlers against writing to the pipe */ |
1403 | /* while we modify the fd vars */ |
1783 | /* while we modify the fd vars */ |
1404 | gotsig = 1; |
1784 | sig_pending = 1; |
1405 | #if EV_ASYNC_ENABLE |
1785 | #if EV_ASYNC_ENABLE |
1406 | gotasync = 1; |
1786 | async_pending = 1; |
1407 | #endif |
1787 | #endif |
1408 | |
1788 | |
1409 | ev_ref (EV_A); |
1789 | ev_ref (EV_A); |
1410 | ev_io_stop (EV_A_ &pipeev); |
1790 | ev_io_stop (EV_A_ &pipe_w); |
1411 | |
1791 | |
1412 | #if EV_USE_EVENTFD |
1792 | #if EV_USE_EVENTFD |
1413 | if (evfd >= 0) |
1793 | if (evfd >= 0) |
1414 | close (evfd); |
1794 | close (evfd); |
1415 | #endif |
1795 | #endif |
1416 | |
1796 | |
1417 | if (evpipe [0] >= 0) |
1797 | if (evpipe [0] >= 0) |
1418 | { |
1798 | { |
1419 | close (evpipe [0]); |
1799 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1420 | close (evpipe [1]); |
1800 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1421 | } |
1801 | } |
1422 | |
1802 | |
1423 | evpipe_init (EV_A); |
1803 | evpipe_init (EV_A); |
1424 | /* now iterate over everything, in case we missed something */ |
1804 | /* now iterate over everything, in case we missed something */ |
1425 | pipecb (EV_A_ &pipeev, EV_READ); |
1805 | pipecb (EV_A_ &pipe_w, EV_READ); |
1426 | } |
1806 | } |
1427 | |
1807 | |
1428 | postfork = 0; |
1808 | postfork = 0; |
1429 | } |
1809 | } |
1430 | |
1810 | |
1431 | #if EV_MULTIPLICITY |
1811 | #if EV_MULTIPLICITY |
|
|
1812 | |
1432 | struct ev_loop * |
1813 | struct ev_loop * |
1433 | ev_loop_new (unsigned int flags) |
1814 | ev_loop_new (unsigned int flags) |
1434 | { |
1815 | { |
1435 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1816 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1436 | |
1817 | |
1437 | memset (loop, 0, sizeof (struct ev_loop)); |
1818 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1438 | |
|
|
1439 | loop_init (EV_A_ flags); |
1819 | loop_init (EV_A_ flags); |
1440 | |
1820 | |
1441 | if (ev_backend (EV_A)) |
1821 | if (ev_backend (EV_A)) |
1442 | return loop; |
1822 | return EV_A; |
1443 | |
1823 | |
1444 | return 0; |
1824 | return 0; |
1445 | } |
1825 | } |
1446 | |
1826 | |
1447 | void |
1827 | void |
… | |
… | |
1453 | |
1833 | |
1454 | void |
1834 | void |
1455 | ev_loop_fork (EV_P) |
1835 | ev_loop_fork (EV_P) |
1456 | { |
1836 | { |
1457 | postfork = 1; /* must be in line with ev_default_fork */ |
1837 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1838 | } |
|
|
1839 | #endif /* multiplicity */ |
|
|
1840 | |
|
|
1841 | #if EV_VERIFY |
|
|
1842 | static void noinline |
|
|
1843 | verify_watcher (EV_P_ W w) |
|
|
1844 | { |
|
|
1845 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1846 | |
|
|
1847 | if (w->pending) |
|
|
1848 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1849 | } |
|
|
1850 | |
|
|
1851 | static void noinline |
|
|
1852 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1853 | { |
|
|
1854 | int i; |
|
|
1855 | |
|
|
1856 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1857 | { |
|
|
1858 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1859 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1860 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1861 | |
|
|
1862 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1863 | } |
|
|
1864 | } |
|
|
1865 | |
|
|
1866 | static void noinline |
|
|
1867 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1868 | { |
|
|
1869 | while (cnt--) |
|
|
1870 | { |
|
|
1871 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1872 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1873 | } |
|
|
1874 | } |
|
|
1875 | #endif |
|
|
1876 | |
|
|
1877 | #if EV_MINIMAL < 2 |
|
|
1878 | void |
|
|
1879 | ev_loop_verify (EV_P) |
|
|
1880 | { |
|
|
1881 | #if EV_VERIFY |
|
|
1882 | int i; |
|
|
1883 | WL w; |
|
|
1884 | |
|
|
1885 | assert (activecnt >= -1); |
|
|
1886 | |
|
|
1887 | assert (fdchangemax >= fdchangecnt); |
|
|
1888 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1889 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1890 | |
|
|
1891 | assert (anfdmax >= 0); |
|
|
1892 | for (i = 0; i < anfdmax; ++i) |
|
|
1893 | for (w = anfds [i].head; w; w = w->next) |
|
|
1894 | { |
|
|
1895 | verify_watcher (EV_A_ (W)w); |
|
|
1896 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1897 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1898 | } |
|
|
1899 | |
|
|
1900 | assert (timermax >= timercnt); |
|
|
1901 | verify_heap (EV_A_ timers, timercnt); |
|
|
1902 | |
|
|
1903 | #if EV_PERIODIC_ENABLE |
|
|
1904 | assert (periodicmax >= periodiccnt); |
|
|
1905 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1906 | #endif |
|
|
1907 | |
|
|
1908 | for (i = NUMPRI; i--; ) |
|
|
1909 | { |
|
|
1910 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1911 | #if EV_IDLE_ENABLE |
|
|
1912 | assert (idleall >= 0); |
|
|
1913 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1914 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1915 | #endif |
|
|
1916 | } |
|
|
1917 | |
|
|
1918 | #if EV_FORK_ENABLE |
|
|
1919 | assert (forkmax >= forkcnt); |
|
|
1920 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1921 | #endif |
|
|
1922 | |
|
|
1923 | #if EV_ASYNC_ENABLE |
|
|
1924 | assert (asyncmax >= asynccnt); |
|
|
1925 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1926 | #endif |
|
|
1927 | |
|
|
1928 | assert (preparemax >= preparecnt); |
|
|
1929 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1930 | |
|
|
1931 | assert (checkmax >= checkcnt); |
|
|
1932 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1933 | |
|
|
1934 | # if 0 |
|
|
1935 | #if EV_CHILD_ENABLE |
|
|
1936 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1937 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1938 | #endif |
|
|
1939 | # endif |
|
|
1940 | #endif |
1458 | } |
1941 | } |
1459 | #endif |
1942 | #endif |
1460 | |
1943 | |
1461 | #if EV_MULTIPLICITY |
1944 | #if EV_MULTIPLICITY |
1462 | struct ev_loop * |
1945 | struct ev_loop * |
… | |
… | |
1467 | #endif |
1950 | #endif |
1468 | { |
1951 | { |
1469 | if (!ev_default_loop_ptr) |
1952 | if (!ev_default_loop_ptr) |
1470 | { |
1953 | { |
1471 | #if EV_MULTIPLICITY |
1954 | #if EV_MULTIPLICITY |
1472 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1955 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1473 | #else |
1956 | #else |
1474 | ev_default_loop_ptr = 1; |
1957 | ev_default_loop_ptr = 1; |
1475 | #endif |
1958 | #endif |
1476 | |
1959 | |
1477 | loop_init (EV_A_ flags); |
1960 | loop_init (EV_A_ flags); |
1478 | |
1961 | |
1479 | if (ev_backend (EV_A)) |
1962 | if (ev_backend (EV_A)) |
1480 | { |
1963 | { |
1481 | #ifndef _WIN32 |
1964 | #if EV_CHILD_ENABLE |
1482 | ev_signal_init (&childev, childcb, SIGCHLD); |
1965 | ev_signal_init (&childev, childcb, SIGCHLD); |
1483 | ev_set_priority (&childev, EV_MAXPRI); |
1966 | ev_set_priority (&childev, EV_MAXPRI); |
1484 | ev_signal_start (EV_A_ &childev); |
1967 | ev_signal_start (EV_A_ &childev); |
1485 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1968 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1486 | #endif |
1969 | #endif |
… | |
… | |
1494 | |
1977 | |
1495 | void |
1978 | void |
1496 | ev_default_destroy (void) |
1979 | ev_default_destroy (void) |
1497 | { |
1980 | { |
1498 | #if EV_MULTIPLICITY |
1981 | #if EV_MULTIPLICITY |
1499 | struct ev_loop *loop = ev_default_loop_ptr; |
1982 | EV_P = ev_default_loop_ptr; |
1500 | #endif |
1983 | #endif |
1501 | |
1984 | |
1502 | #ifndef _WIN32 |
1985 | ev_default_loop_ptr = 0; |
|
|
1986 | |
|
|
1987 | #if EV_CHILD_ENABLE |
1503 | ev_ref (EV_A); /* child watcher */ |
1988 | ev_ref (EV_A); /* child watcher */ |
1504 | ev_signal_stop (EV_A_ &childev); |
1989 | ev_signal_stop (EV_A_ &childev); |
1505 | #endif |
1990 | #endif |
1506 | |
1991 | |
1507 | loop_destroy (EV_A); |
1992 | loop_destroy (EV_A); |
… | |
… | |
1509 | |
1994 | |
1510 | void |
1995 | void |
1511 | ev_default_fork (void) |
1996 | ev_default_fork (void) |
1512 | { |
1997 | { |
1513 | #if EV_MULTIPLICITY |
1998 | #if EV_MULTIPLICITY |
1514 | struct ev_loop *loop = ev_default_loop_ptr; |
1999 | EV_P = ev_default_loop_ptr; |
1515 | #endif |
2000 | #endif |
1516 | |
2001 | |
1517 | if (backend) |
|
|
1518 | postfork = 1; /* must be in line with ev_loop_fork */ |
2002 | postfork = 1; /* must be in line with ev_loop_fork */ |
1519 | } |
2003 | } |
1520 | |
2004 | |
1521 | /*****************************************************************************/ |
2005 | /*****************************************************************************/ |
1522 | |
2006 | |
1523 | void |
2007 | void |
1524 | ev_invoke (EV_P_ void *w, int revents) |
2008 | ev_invoke (EV_P_ void *w, int revents) |
1525 | { |
2009 | { |
1526 | EV_CB_INVOKE ((W)w, revents); |
2010 | EV_CB_INVOKE ((W)w, revents); |
1527 | } |
2011 | } |
1528 | |
2012 | |
1529 | void inline_speed |
2013 | unsigned int |
1530 | call_pending (EV_P) |
2014 | ev_pending_count (EV_P) |
|
|
2015 | { |
|
|
2016 | int pri; |
|
|
2017 | unsigned int count = 0; |
|
|
2018 | |
|
|
2019 | for (pri = NUMPRI; pri--; ) |
|
|
2020 | count += pendingcnt [pri]; |
|
|
2021 | |
|
|
2022 | return count; |
|
|
2023 | } |
|
|
2024 | |
|
|
2025 | void noinline |
|
|
2026 | ev_invoke_pending (EV_P) |
1531 | { |
2027 | { |
1532 | int pri; |
2028 | int pri; |
1533 | |
2029 | |
1534 | for (pri = NUMPRI; pri--; ) |
2030 | for (pri = NUMPRI; pri--; ) |
1535 | while (pendingcnt [pri]) |
2031 | while (pendingcnt [pri]) |
1536 | { |
2032 | { |
1537 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2033 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1538 | |
2034 | |
1539 | if (expect_true (p->w)) |
|
|
1540 | { |
|
|
1541 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2035 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2036 | /* ^ this is no longer true, as pending_w could be here */ |
1542 | |
2037 | |
1543 | p->w->pending = 0; |
2038 | p->w->pending = 0; |
1544 | EV_CB_INVOKE (p->w, p->events); |
2039 | EV_CB_INVOKE (p->w, p->events); |
1545 | } |
2040 | EV_FREQUENT_CHECK; |
1546 | } |
2041 | } |
1547 | } |
2042 | } |
1548 | |
2043 | |
1549 | #if EV_IDLE_ENABLE |
2044 | #if EV_IDLE_ENABLE |
1550 | void inline_size |
2045 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2046 | /* only when higher priorities are idle" logic */ |
|
|
2047 | inline_size void |
1551 | idle_reify (EV_P) |
2048 | idle_reify (EV_P) |
1552 | { |
2049 | { |
1553 | if (expect_false (idleall)) |
2050 | if (expect_false (idleall)) |
1554 | { |
2051 | { |
1555 | int pri; |
2052 | int pri; |
… | |
… | |
1567 | } |
2064 | } |
1568 | } |
2065 | } |
1569 | } |
2066 | } |
1570 | #endif |
2067 | #endif |
1571 | |
2068 | |
1572 | void inline_size |
2069 | /* make timers pending */ |
|
|
2070 | inline_size void |
1573 | timers_reify (EV_P) |
2071 | timers_reify (EV_P) |
1574 | { |
2072 | { |
|
|
2073 | EV_FREQUENT_CHECK; |
|
|
2074 | |
1575 | while (timercnt && ev_at (timers [HEAP0]) <= mn_now) |
2075 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1576 | { |
2076 | { |
1577 | ev_timer *w = (ev_timer *)timers [HEAP0]; |
2077 | do |
1578 | |
|
|
1579 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1580 | |
|
|
1581 | /* first reschedule or stop timer */ |
|
|
1582 | if (w->repeat) |
|
|
1583 | { |
2078 | { |
|
|
2079 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2080 | |
|
|
2081 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2082 | |
|
|
2083 | /* first reschedule or stop timer */ |
|
|
2084 | if (w->repeat) |
|
|
2085 | { |
|
|
2086 | ev_at (w) += w->repeat; |
|
|
2087 | if (ev_at (w) < mn_now) |
|
|
2088 | ev_at (w) = mn_now; |
|
|
2089 | |
1584 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2090 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1585 | |
2091 | |
1586 | ev_at (w) += w->repeat; |
2092 | ANHE_at_cache (timers [HEAP0]); |
1587 | if (ev_at (w) < mn_now) |
|
|
1588 | ev_at (w) = mn_now; |
|
|
1589 | |
|
|
1590 | downheap (timers, timercnt, HEAP0); |
2093 | downheap (timers, timercnt, HEAP0); |
|
|
2094 | } |
|
|
2095 | else |
|
|
2096 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2097 | |
|
|
2098 | EV_FREQUENT_CHECK; |
|
|
2099 | feed_reverse (EV_A_ (W)w); |
1591 | } |
2100 | } |
1592 | else |
2101 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1593 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1594 | |
2102 | |
1595 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2103 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1596 | } |
2104 | } |
1597 | } |
2105 | } |
1598 | |
2106 | |
1599 | #if EV_PERIODIC_ENABLE |
2107 | #if EV_PERIODIC_ENABLE |
1600 | void inline_size |
2108 | /* make periodics pending */ |
|
|
2109 | inline_size void |
1601 | periodics_reify (EV_P) |
2110 | periodics_reify (EV_P) |
1602 | { |
2111 | { |
|
|
2112 | EV_FREQUENT_CHECK; |
|
|
2113 | |
1603 | while (periodiccnt && ev_at (periodics [HEAP0]) <= ev_rt_now) |
2114 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1604 | { |
2115 | { |
1605 | ev_periodic *w = (ev_periodic *)periodics [HEAP0]; |
2116 | int feed_count = 0; |
1606 | |
2117 | |
1607 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2118 | do |
1608 | |
|
|
1609 | /* first reschedule or stop timer */ |
|
|
1610 | if (w->reschedule_cb) |
|
|
1611 | { |
2119 | { |
|
|
2120 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2121 | |
|
|
2122 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2123 | |
|
|
2124 | /* first reschedule or stop timer */ |
|
|
2125 | if (w->reschedule_cb) |
|
|
2126 | { |
1612 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
2127 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2128 | |
1613 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
2129 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2130 | |
|
|
2131 | ANHE_at_cache (periodics [HEAP0]); |
1614 | downheap (periodics, periodiccnt, 1); |
2132 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2133 | } |
|
|
2134 | else if (w->interval) |
|
|
2135 | { |
|
|
2136 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2137 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2138 | /* this might happen because of floating point inexactness */ |
|
|
2139 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2140 | { |
|
|
2141 | ev_at (w) += w->interval; |
|
|
2142 | |
|
|
2143 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2144 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2145 | /* has effectively asked to get triggered more often than possible */ |
|
|
2146 | if (ev_at (w) < ev_rt_now) |
|
|
2147 | ev_at (w) = ev_rt_now; |
|
|
2148 | } |
|
|
2149 | |
|
|
2150 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2151 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2152 | } |
|
|
2153 | else |
|
|
2154 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2155 | |
|
|
2156 | EV_FREQUENT_CHECK; |
|
|
2157 | feed_reverse (EV_A_ (W)w); |
1615 | } |
2158 | } |
1616 | else if (w->interval) |
2159 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1617 | { |
|
|
1618 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1619 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1620 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1621 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1622 | } |
|
|
1623 | else |
|
|
1624 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1625 | |
2160 | |
1626 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2161 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1627 | } |
2162 | } |
1628 | } |
2163 | } |
1629 | |
2164 | |
|
|
2165 | /* simply recalculate all periodics */ |
|
|
2166 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1630 | static void noinline |
2167 | static void noinline |
1631 | periodics_reschedule (EV_P) |
2168 | periodics_reschedule (EV_P) |
1632 | { |
2169 | { |
1633 | int i; |
2170 | int i; |
1634 | |
2171 | |
1635 | /* adjust periodics after time jump */ |
2172 | /* adjust periodics after time jump */ |
1636 | for (i = 1; i <= periodiccnt; ++i) |
2173 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1637 | { |
2174 | { |
1638 | ev_periodic *w = (ev_periodic *)periodics [i]; |
2175 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1639 | |
2176 | |
1640 | if (w->reschedule_cb) |
2177 | if (w->reschedule_cb) |
1641 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2178 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1642 | else if (w->interval) |
2179 | else if (w->interval) |
1643 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2180 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2181 | |
|
|
2182 | ANHE_at_cache (periodics [i]); |
|
|
2183 | } |
|
|
2184 | |
|
|
2185 | reheap (periodics, periodiccnt); |
|
|
2186 | } |
|
|
2187 | #endif |
|
|
2188 | |
|
|
2189 | /* adjust all timers by a given offset */ |
|
|
2190 | static void noinline |
|
|
2191 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2192 | { |
|
|
2193 | int i; |
|
|
2194 | |
|
|
2195 | for (i = 0; i < timercnt; ++i) |
1644 | } |
2196 | { |
1645 | |
2197 | ANHE *he = timers + i + HEAP0; |
1646 | /* now rebuild the heap */ |
2198 | ANHE_w (*he)->at += adjust; |
1647 | for (i = periodiccnt >> 1; --i; ) |
2199 | ANHE_at_cache (*he); |
1648 | downheap (periodics, periodiccnt, i + HEAP0); |
2200 | } |
1649 | } |
2201 | } |
1650 | #endif |
|
|
1651 | |
2202 | |
1652 | void inline_speed |
2203 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2204 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2205 | inline_speed void |
1653 | time_update (EV_P_ ev_tstamp max_block) |
2206 | time_update (EV_P_ ev_tstamp max_block) |
1654 | { |
2207 | { |
1655 | int i; |
|
|
1656 | |
|
|
1657 | #if EV_USE_MONOTONIC |
2208 | #if EV_USE_MONOTONIC |
1658 | if (expect_true (have_monotonic)) |
2209 | if (expect_true (have_monotonic)) |
1659 | { |
2210 | { |
|
|
2211 | int i; |
1660 | ev_tstamp odiff = rtmn_diff; |
2212 | ev_tstamp odiff = rtmn_diff; |
1661 | |
2213 | |
1662 | mn_now = get_clock (); |
2214 | mn_now = get_clock (); |
1663 | |
2215 | |
1664 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2216 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1690 | ev_rt_now = ev_time (); |
2242 | ev_rt_now = ev_time (); |
1691 | mn_now = get_clock (); |
2243 | mn_now = get_clock (); |
1692 | now_floor = mn_now; |
2244 | now_floor = mn_now; |
1693 | } |
2245 | } |
1694 | |
2246 | |
|
|
2247 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2248 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1695 | # if EV_PERIODIC_ENABLE |
2249 | # if EV_PERIODIC_ENABLE |
1696 | periodics_reschedule (EV_A); |
2250 | periodics_reschedule (EV_A); |
1697 | # endif |
2251 | # endif |
1698 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1699 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1700 | } |
2252 | } |
1701 | else |
2253 | else |
1702 | #endif |
2254 | #endif |
1703 | { |
2255 | { |
1704 | ev_rt_now = ev_time (); |
2256 | ev_rt_now = ev_time (); |
1705 | |
2257 | |
1706 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2258 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1707 | { |
2259 | { |
|
|
2260 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2261 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1708 | #if EV_PERIODIC_ENABLE |
2262 | #if EV_PERIODIC_ENABLE |
1709 | periodics_reschedule (EV_A); |
2263 | periodics_reschedule (EV_A); |
1710 | #endif |
2264 | #endif |
1711 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1712 | for (i = 1; i <= timercnt; ++i) |
|
|
1713 | ev_at (timers [i]) += ev_rt_now - mn_now; |
|
|
1714 | } |
2265 | } |
1715 | |
2266 | |
1716 | mn_now = ev_rt_now; |
2267 | mn_now = ev_rt_now; |
1717 | } |
2268 | } |
1718 | } |
2269 | } |
1719 | |
2270 | |
1720 | void |
2271 | void |
1721 | ev_ref (EV_P) |
|
|
1722 | { |
|
|
1723 | ++activecnt; |
|
|
1724 | } |
|
|
1725 | |
|
|
1726 | void |
|
|
1727 | ev_unref (EV_P) |
|
|
1728 | { |
|
|
1729 | --activecnt; |
|
|
1730 | } |
|
|
1731 | |
|
|
1732 | static int loop_done; |
|
|
1733 | |
|
|
1734 | void |
|
|
1735 | ev_loop (EV_P_ int flags) |
2272 | ev_loop (EV_P_ int flags) |
1736 | { |
2273 | { |
|
|
2274 | #if EV_MINIMAL < 2 |
|
|
2275 | ++loop_depth; |
|
|
2276 | #endif |
|
|
2277 | |
|
|
2278 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2279 | |
1737 | loop_done = EVUNLOOP_CANCEL; |
2280 | loop_done = EVUNLOOP_CANCEL; |
1738 | |
2281 | |
1739 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2282 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1740 | |
2283 | |
1741 | do |
2284 | do |
1742 | { |
2285 | { |
|
|
2286 | #if EV_VERIFY >= 2 |
|
|
2287 | ev_loop_verify (EV_A); |
|
|
2288 | #endif |
|
|
2289 | |
1743 | #ifndef _WIN32 |
2290 | #ifndef _WIN32 |
1744 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2291 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1745 | if (expect_false (getpid () != curpid)) |
2292 | if (expect_false (getpid () != curpid)) |
1746 | { |
2293 | { |
1747 | curpid = getpid (); |
2294 | curpid = getpid (); |
… | |
… | |
1753 | /* we might have forked, so queue fork handlers */ |
2300 | /* we might have forked, so queue fork handlers */ |
1754 | if (expect_false (postfork)) |
2301 | if (expect_false (postfork)) |
1755 | if (forkcnt) |
2302 | if (forkcnt) |
1756 | { |
2303 | { |
1757 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2304 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1758 | call_pending (EV_A); |
2305 | EV_INVOKE_PENDING; |
1759 | } |
2306 | } |
1760 | #endif |
2307 | #endif |
1761 | |
2308 | |
1762 | /* queue prepare watchers (and execute them) */ |
2309 | /* queue prepare watchers (and execute them) */ |
1763 | if (expect_false (preparecnt)) |
2310 | if (expect_false (preparecnt)) |
1764 | { |
2311 | { |
1765 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2312 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1766 | call_pending (EV_A); |
2313 | EV_INVOKE_PENDING; |
1767 | } |
2314 | } |
1768 | |
2315 | |
1769 | if (expect_false (!activecnt)) |
2316 | if (expect_false (loop_done)) |
1770 | break; |
2317 | break; |
1771 | |
2318 | |
1772 | /* we might have forked, so reify kernel state if necessary */ |
2319 | /* we might have forked, so reify kernel state if necessary */ |
1773 | if (expect_false (postfork)) |
2320 | if (expect_false (postfork)) |
1774 | loop_fork (EV_A); |
2321 | loop_fork (EV_A); |
… | |
… | |
1781 | ev_tstamp waittime = 0.; |
2328 | ev_tstamp waittime = 0.; |
1782 | ev_tstamp sleeptime = 0.; |
2329 | ev_tstamp sleeptime = 0.; |
1783 | |
2330 | |
1784 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2331 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1785 | { |
2332 | { |
|
|
2333 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2334 | ev_tstamp prev_mn_now = mn_now; |
|
|
2335 | |
1786 | /* update time to cancel out callback processing overhead */ |
2336 | /* update time to cancel out callback processing overhead */ |
1787 | time_update (EV_A_ 1e100); |
2337 | time_update (EV_A_ 1e100); |
1788 | |
2338 | |
1789 | waittime = MAX_BLOCKTIME; |
2339 | waittime = MAX_BLOCKTIME; |
1790 | |
2340 | |
1791 | if (timercnt) |
2341 | if (timercnt) |
1792 | { |
2342 | { |
1793 | ev_tstamp to = ev_at (timers [HEAP0]) - mn_now + backend_fudge; |
2343 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1794 | if (waittime > to) waittime = to; |
2344 | if (waittime > to) waittime = to; |
1795 | } |
2345 | } |
1796 | |
2346 | |
1797 | #if EV_PERIODIC_ENABLE |
2347 | #if EV_PERIODIC_ENABLE |
1798 | if (periodiccnt) |
2348 | if (periodiccnt) |
1799 | { |
2349 | { |
1800 | ev_tstamp to = ev_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2350 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1801 | if (waittime > to) waittime = to; |
2351 | if (waittime > to) waittime = to; |
1802 | } |
2352 | } |
1803 | #endif |
2353 | #endif |
1804 | |
2354 | |
|
|
2355 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1805 | if (expect_false (waittime < timeout_blocktime)) |
2356 | if (expect_false (waittime < timeout_blocktime)) |
1806 | waittime = timeout_blocktime; |
2357 | waittime = timeout_blocktime; |
1807 | |
2358 | |
1808 | sleeptime = waittime - backend_fudge; |
2359 | /* extra check because io_blocktime is commonly 0 */ |
1809 | |
|
|
1810 | if (expect_true (sleeptime > io_blocktime)) |
2360 | if (expect_false (io_blocktime)) |
1811 | sleeptime = io_blocktime; |
|
|
1812 | |
|
|
1813 | if (sleeptime) |
|
|
1814 | { |
2361 | { |
|
|
2362 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2363 | |
|
|
2364 | if (sleeptime > waittime - backend_fudge) |
|
|
2365 | sleeptime = waittime - backend_fudge; |
|
|
2366 | |
|
|
2367 | if (expect_true (sleeptime > 0.)) |
|
|
2368 | { |
1815 | ev_sleep (sleeptime); |
2369 | ev_sleep (sleeptime); |
1816 | waittime -= sleeptime; |
2370 | waittime -= sleeptime; |
|
|
2371 | } |
1817 | } |
2372 | } |
1818 | } |
2373 | } |
1819 | |
2374 | |
|
|
2375 | #if EV_MINIMAL < 2 |
1820 | ++loop_count; |
2376 | ++loop_count; |
|
|
2377 | #endif |
|
|
2378 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1821 | backend_poll (EV_A_ waittime); |
2379 | backend_poll (EV_A_ waittime); |
|
|
2380 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1822 | |
2381 | |
1823 | /* update ev_rt_now, do magic */ |
2382 | /* update ev_rt_now, do magic */ |
1824 | time_update (EV_A_ waittime + sleeptime); |
2383 | time_update (EV_A_ waittime + sleeptime); |
1825 | } |
2384 | } |
1826 | |
2385 | |
… | |
… | |
1837 | |
2396 | |
1838 | /* queue check watchers, to be executed first */ |
2397 | /* queue check watchers, to be executed first */ |
1839 | if (expect_false (checkcnt)) |
2398 | if (expect_false (checkcnt)) |
1840 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2399 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1841 | |
2400 | |
1842 | call_pending (EV_A); |
2401 | EV_INVOKE_PENDING; |
1843 | } |
2402 | } |
1844 | while (expect_true ( |
2403 | while (expect_true ( |
1845 | activecnt |
2404 | activecnt |
1846 | && !loop_done |
2405 | && !loop_done |
1847 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2406 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1848 | )); |
2407 | )); |
1849 | |
2408 | |
1850 | if (loop_done == EVUNLOOP_ONE) |
2409 | if (loop_done == EVUNLOOP_ONE) |
1851 | loop_done = EVUNLOOP_CANCEL; |
2410 | loop_done = EVUNLOOP_CANCEL; |
|
|
2411 | |
|
|
2412 | #if EV_MINIMAL < 2 |
|
|
2413 | --loop_depth; |
|
|
2414 | #endif |
1852 | } |
2415 | } |
1853 | |
2416 | |
1854 | void |
2417 | void |
1855 | ev_unloop (EV_P_ int how) |
2418 | ev_unloop (EV_P_ int how) |
1856 | { |
2419 | { |
1857 | loop_done = how; |
2420 | loop_done = how; |
1858 | } |
2421 | } |
1859 | |
2422 | |
|
|
2423 | void |
|
|
2424 | ev_ref (EV_P) |
|
|
2425 | { |
|
|
2426 | ++activecnt; |
|
|
2427 | } |
|
|
2428 | |
|
|
2429 | void |
|
|
2430 | ev_unref (EV_P) |
|
|
2431 | { |
|
|
2432 | --activecnt; |
|
|
2433 | } |
|
|
2434 | |
|
|
2435 | void |
|
|
2436 | ev_now_update (EV_P) |
|
|
2437 | { |
|
|
2438 | time_update (EV_A_ 1e100); |
|
|
2439 | } |
|
|
2440 | |
|
|
2441 | void |
|
|
2442 | ev_suspend (EV_P) |
|
|
2443 | { |
|
|
2444 | ev_now_update (EV_A); |
|
|
2445 | } |
|
|
2446 | |
|
|
2447 | void |
|
|
2448 | ev_resume (EV_P) |
|
|
2449 | { |
|
|
2450 | ev_tstamp mn_prev = mn_now; |
|
|
2451 | |
|
|
2452 | ev_now_update (EV_A); |
|
|
2453 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2454 | #if EV_PERIODIC_ENABLE |
|
|
2455 | /* TODO: really do this? */ |
|
|
2456 | periodics_reschedule (EV_A); |
|
|
2457 | #endif |
|
|
2458 | } |
|
|
2459 | |
1860 | /*****************************************************************************/ |
2460 | /*****************************************************************************/ |
|
|
2461 | /* singly-linked list management, used when the expected list length is short */ |
1861 | |
2462 | |
1862 | void inline_size |
2463 | inline_size void |
1863 | wlist_add (WL *head, WL elem) |
2464 | wlist_add (WL *head, WL elem) |
1864 | { |
2465 | { |
1865 | elem->next = *head; |
2466 | elem->next = *head; |
1866 | *head = elem; |
2467 | *head = elem; |
1867 | } |
2468 | } |
1868 | |
2469 | |
1869 | void inline_size |
2470 | inline_size void |
1870 | wlist_del (WL *head, WL elem) |
2471 | wlist_del (WL *head, WL elem) |
1871 | { |
2472 | { |
1872 | while (*head) |
2473 | while (*head) |
1873 | { |
2474 | { |
1874 | if (*head == elem) |
2475 | if (expect_true (*head == elem)) |
1875 | { |
2476 | { |
1876 | *head = elem->next; |
2477 | *head = elem->next; |
1877 | return; |
2478 | break; |
1878 | } |
2479 | } |
1879 | |
2480 | |
1880 | head = &(*head)->next; |
2481 | head = &(*head)->next; |
1881 | } |
2482 | } |
1882 | } |
2483 | } |
1883 | |
2484 | |
1884 | void inline_speed |
2485 | /* internal, faster, version of ev_clear_pending */ |
|
|
2486 | inline_speed void |
1885 | clear_pending (EV_P_ W w) |
2487 | clear_pending (EV_P_ W w) |
1886 | { |
2488 | { |
1887 | if (w->pending) |
2489 | if (w->pending) |
1888 | { |
2490 | { |
1889 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2491 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1890 | w->pending = 0; |
2492 | w->pending = 0; |
1891 | } |
2493 | } |
1892 | } |
2494 | } |
1893 | |
2495 | |
1894 | int |
2496 | int |
… | |
… | |
1898 | int pending = w_->pending; |
2500 | int pending = w_->pending; |
1899 | |
2501 | |
1900 | if (expect_true (pending)) |
2502 | if (expect_true (pending)) |
1901 | { |
2503 | { |
1902 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2504 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2505 | p->w = (W)&pending_w; |
1903 | w_->pending = 0; |
2506 | w_->pending = 0; |
1904 | p->w = 0; |
|
|
1905 | return p->events; |
2507 | return p->events; |
1906 | } |
2508 | } |
1907 | else |
2509 | else |
1908 | return 0; |
2510 | return 0; |
1909 | } |
2511 | } |
1910 | |
2512 | |
1911 | void inline_size |
2513 | inline_size void |
1912 | pri_adjust (EV_P_ W w) |
2514 | pri_adjust (EV_P_ W w) |
1913 | { |
2515 | { |
1914 | int pri = w->priority; |
2516 | int pri = ev_priority (w); |
1915 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2517 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1916 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2518 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1917 | w->priority = pri; |
2519 | ev_set_priority (w, pri); |
1918 | } |
2520 | } |
1919 | |
2521 | |
1920 | void inline_speed |
2522 | inline_speed void |
1921 | ev_start (EV_P_ W w, int active) |
2523 | ev_start (EV_P_ W w, int active) |
1922 | { |
2524 | { |
1923 | pri_adjust (EV_A_ w); |
2525 | pri_adjust (EV_A_ w); |
1924 | w->active = active; |
2526 | w->active = active; |
1925 | ev_ref (EV_A); |
2527 | ev_ref (EV_A); |
1926 | } |
2528 | } |
1927 | |
2529 | |
1928 | void inline_size |
2530 | inline_size void |
1929 | ev_stop (EV_P_ W w) |
2531 | ev_stop (EV_P_ W w) |
1930 | { |
2532 | { |
1931 | ev_unref (EV_A); |
2533 | ev_unref (EV_A); |
1932 | w->active = 0; |
2534 | w->active = 0; |
1933 | } |
2535 | } |
… | |
… | |
1940 | int fd = w->fd; |
2542 | int fd = w->fd; |
1941 | |
2543 | |
1942 | if (expect_false (ev_is_active (w))) |
2544 | if (expect_false (ev_is_active (w))) |
1943 | return; |
2545 | return; |
1944 | |
2546 | |
1945 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2547 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2548 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2549 | |
|
|
2550 | EV_FREQUENT_CHECK; |
1946 | |
2551 | |
1947 | ev_start (EV_A_ (W)w, 1); |
2552 | ev_start (EV_A_ (W)w, 1); |
1948 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2553 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1949 | wlist_add (&anfds[fd].head, (WL)w); |
2554 | wlist_add (&anfds[fd].head, (WL)w); |
1950 | |
2555 | |
1951 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2556 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1952 | w->events &= ~EV_IOFDSET; |
2557 | w->events &= ~EV__IOFDSET; |
|
|
2558 | |
|
|
2559 | EV_FREQUENT_CHECK; |
1953 | } |
2560 | } |
1954 | |
2561 | |
1955 | void noinline |
2562 | void noinline |
1956 | ev_io_stop (EV_P_ ev_io *w) |
2563 | ev_io_stop (EV_P_ ev_io *w) |
1957 | { |
2564 | { |
1958 | clear_pending (EV_A_ (W)w); |
2565 | clear_pending (EV_A_ (W)w); |
1959 | if (expect_false (!ev_is_active (w))) |
2566 | if (expect_false (!ev_is_active (w))) |
1960 | return; |
2567 | return; |
1961 | |
2568 | |
1962 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2569 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2570 | |
|
|
2571 | EV_FREQUENT_CHECK; |
1963 | |
2572 | |
1964 | wlist_del (&anfds[w->fd].head, (WL)w); |
2573 | wlist_del (&anfds[w->fd].head, (WL)w); |
1965 | ev_stop (EV_A_ (W)w); |
2574 | ev_stop (EV_A_ (W)w); |
1966 | |
2575 | |
1967 | fd_change (EV_A_ w->fd, 1); |
2576 | fd_change (EV_A_ w->fd, 1); |
|
|
2577 | |
|
|
2578 | EV_FREQUENT_CHECK; |
1968 | } |
2579 | } |
1969 | |
2580 | |
1970 | void noinline |
2581 | void noinline |
1971 | ev_timer_start (EV_P_ ev_timer *w) |
2582 | ev_timer_start (EV_P_ ev_timer *w) |
1972 | { |
2583 | { |
1973 | if (expect_false (ev_is_active (w))) |
2584 | if (expect_false (ev_is_active (w))) |
1974 | return; |
2585 | return; |
1975 | |
2586 | |
1976 | ev_at (w) += mn_now; |
2587 | ev_at (w) += mn_now; |
1977 | |
2588 | |
1978 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2589 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1979 | |
2590 | |
|
|
2591 | EV_FREQUENT_CHECK; |
|
|
2592 | |
|
|
2593 | ++timercnt; |
1980 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
2594 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1981 | array_needsize (WT, timers, timermax, timercnt + HEAP0, EMPTY2); |
2595 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1982 | timers [ev_active (w)] = (WT)w; |
2596 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
2597 | ANHE_at_cache (timers [ev_active (w)]); |
1983 | upheap (timers, ev_active (w)); |
2598 | upheap (timers, ev_active (w)); |
1984 | |
2599 | |
|
|
2600 | EV_FREQUENT_CHECK; |
|
|
2601 | |
1985 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ |
2602 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1986 | } |
2603 | } |
1987 | |
2604 | |
1988 | void noinline |
2605 | void noinline |
1989 | ev_timer_stop (EV_P_ ev_timer *w) |
2606 | ev_timer_stop (EV_P_ ev_timer *w) |
1990 | { |
2607 | { |
1991 | clear_pending (EV_A_ (W)w); |
2608 | clear_pending (EV_A_ (W)w); |
1992 | if (expect_false (!ev_is_active (w))) |
2609 | if (expect_false (!ev_is_active (w))) |
1993 | return; |
2610 | return; |
1994 | |
2611 | |
|
|
2612 | EV_FREQUENT_CHECK; |
|
|
2613 | |
1995 | { |
2614 | { |
1996 | int active = ev_active (w); |
2615 | int active = ev_active (w); |
1997 | |
2616 | |
1998 | assert (("internal timer heap corruption", timers [active] == (WT)w)); |
2617 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1999 | |
2618 | |
|
|
2619 | --timercnt; |
|
|
2620 | |
2000 | if (expect_true (active < timercnt + HEAP0 - 1)) |
2621 | if (expect_true (active < timercnt + HEAP0)) |
2001 | { |
2622 | { |
2002 | timers [active] = timers [timercnt + HEAP0 - 1]; |
2623 | timers [active] = timers [timercnt + HEAP0]; |
2003 | adjustheap (timers, timercnt, active); |
2624 | adjustheap (timers, timercnt, active); |
2004 | } |
2625 | } |
2005 | |
|
|
2006 | --timercnt; |
|
|
2007 | } |
2626 | } |
2008 | |
2627 | |
2009 | ev_at (w) -= mn_now; |
2628 | ev_at (w) -= mn_now; |
2010 | |
2629 | |
2011 | ev_stop (EV_A_ (W)w); |
2630 | ev_stop (EV_A_ (W)w); |
|
|
2631 | |
|
|
2632 | EV_FREQUENT_CHECK; |
2012 | } |
2633 | } |
2013 | |
2634 | |
2014 | void noinline |
2635 | void noinline |
2015 | ev_timer_again (EV_P_ ev_timer *w) |
2636 | ev_timer_again (EV_P_ ev_timer *w) |
2016 | { |
2637 | { |
|
|
2638 | EV_FREQUENT_CHECK; |
|
|
2639 | |
2017 | if (ev_is_active (w)) |
2640 | if (ev_is_active (w)) |
2018 | { |
2641 | { |
2019 | if (w->repeat) |
2642 | if (w->repeat) |
2020 | { |
2643 | { |
2021 | ev_at (w) = mn_now + w->repeat; |
2644 | ev_at (w) = mn_now + w->repeat; |
|
|
2645 | ANHE_at_cache (timers [ev_active (w)]); |
2022 | adjustheap (timers, timercnt, ev_active (w)); |
2646 | adjustheap (timers, timercnt, ev_active (w)); |
2023 | } |
2647 | } |
2024 | else |
2648 | else |
2025 | ev_timer_stop (EV_A_ w); |
2649 | ev_timer_stop (EV_A_ w); |
2026 | } |
2650 | } |
2027 | else if (w->repeat) |
2651 | else if (w->repeat) |
2028 | { |
2652 | { |
2029 | ev_at (w) = w->repeat; |
2653 | ev_at (w) = w->repeat; |
2030 | ev_timer_start (EV_A_ w); |
2654 | ev_timer_start (EV_A_ w); |
2031 | } |
2655 | } |
|
|
2656 | |
|
|
2657 | EV_FREQUENT_CHECK; |
|
|
2658 | } |
|
|
2659 | |
|
|
2660 | ev_tstamp |
|
|
2661 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2662 | { |
|
|
2663 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2032 | } |
2664 | } |
2033 | |
2665 | |
2034 | #if EV_PERIODIC_ENABLE |
2666 | #if EV_PERIODIC_ENABLE |
2035 | void noinline |
2667 | void noinline |
2036 | ev_periodic_start (EV_P_ ev_periodic *w) |
2668 | ev_periodic_start (EV_P_ ev_periodic *w) |
… | |
… | |
2040 | |
2672 | |
2041 | if (w->reschedule_cb) |
2673 | if (w->reschedule_cb) |
2042 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2674 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2043 | else if (w->interval) |
2675 | else if (w->interval) |
2044 | { |
2676 | { |
2045 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2677 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2046 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2678 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2047 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2679 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2048 | } |
2680 | } |
2049 | else |
2681 | else |
2050 | ev_at (w) = w->offset; |
2682 | ev_at (w) = w->offset; |
2051 | |
2683 | |
|
|
2684 | EV_FREQUENT_CHECK; |
|
|
2685 | |
|
|
2686 | ++periodiccnt; |
2052 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
2687 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2053 | array_needsize (WT, periodics, periodicmax, periodiccnt + HEAP0, EMPTY2); |
2688 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2054 | periodics [ev_active (w)] = (WT)w; |
2689 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
|
|
2690 | ANHE_at_cache (periodics [ev_active (w)]); |
2055 | upheap (periodics, ev_active (w)); |
2691 | upheap (periodics, ev_active (w)); |
2056 | |
2692 | |
|
|
2693 | EV_FREQUENT_CHECK; |
|
|
2694 | |
2057 | /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/ |
2695 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2058 | } |
2696 | } |
2059 | |
2697 | |
2060 | void noinline |
2698 | void noinline |
2061 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2699 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2062 | { |
2700 | { |
2063 | clear_pending (EV_A_ (W)w); |
2701 | clear_pending (EV_A_ (W)w); |
2064 | if (expect_false (!ev_is_active (w))) |
2702 | if (expect_false (!ev_is_active (w))) |
2065 | return; |
2703 | return; |
2066 | |
2704 | |
|
|
2705 | EV_FREQUENT_CHECK; |
|
|
2706 | |
2067 | { |
2707 | { |
2068 | int active = ev_active (w); |
2708 | int active = ev_active (w); |
2069 | |
2709 | |
2070 | assert (("internal periodic heap corruption", periodics [active] == (WT)w)); |
2710 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2071 | |
2711 | |
|
|
2712 | --periodiccnt; |
|
|
2713 | |
2072 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
2714 | if (expect_true (active < periodiccnt + HEAP0)) |
2073 | { |
2715 | { |
2074 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
2716 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2075 | adjustheap (periodics, periodiccnt, active); |
2717 | adjustheap (periodics, periodiccnt, active); |
2076 | } |
2718 | } |
2077 | |
|
|
2078 | --periodiccnt; |
|
|
2079 | } |
2719 | } |
2080 | |
2720 | |
2081 | ev_stop (EV_A_ (W)w); |
2721 | ev_stop (EV_A_ (W)w); |
|
|
2722 | |
|
|
2723 | EV_FREQUENT_CHECK; |
2082 | } |
2724 | } |
2083 | |
2725 | |
2084 | void noinline |
2726 | void noinline |
2085 | ev_periodic_again (EV_P_ ev_periodic *w) |
2727 | ev_periodic_again (EV_P_ ev_periodic *w) |
2086 | { |
2728 | { |
… | |
… | |
2092 | |
2734 | |
2093 | #ifndef SA_RESTART |
2735 | #ifndef SA_RESTART |
2094 | # define SA_RESTART 0 |
2736 | # define SA_RESTART 0 |
2095 | #endif |
2737 | #endif |
2096 | |
2738 | |
|
|
2739 | #if EV_SIGNAL_ENABLE |
|
|
2740 | |
2097 | void noinline |
2741 | void noinline |
2098 | ev_signal_start (EV_P_ ev_signal *w) |
2742 | ev_signal_start (EV_P_ ev_signal *w) |
2099 | { |
2743 | { |
2100 | #if EV_MULTIPLICITY |
|
|
2101 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2102 | #endif |
|
|
2103 | if (expect_false (ev_is_active (w))) |
2744 | if (expect_false (ev_is_active (w))) |
2104 | return; |
2745 | return; |
2105 | |
2746 | |
2106 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2747 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2107 | |
2748 | |
2108 | evpipe_init (EV_A); |
2749 | #if EV_MULTIPLICITY |
|
|
2750 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2751 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2109 | |
2752 | |
|
|
2753 | signals [w->signum - 1].loop = EV_A; |
|
|
2754 | #endif |
|
|
2755 | |
|
|
2756 | EV_FREQUENT_CHECK; |
|
|
2757 | |
|
|
2758 | #if EV_USE_SIGNALFD |
|
|
2759 | if (sigfd == -2) |
2110 | { |
2760 | { |
2111 | #ifndef _WIN32 |
2761 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2112 | sigset_t full, prev; |
2762 | if (sigfd < 0 && errno == EINVAL) |
2113 | sigfillset (&full); |
2763 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2114 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2115 | #endif |
|
|
2116 | |
2764 | |
2117 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2765 | if (sigfd >= 0) |
|
|
2766 | { |
|
|
2767 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2118 | |
2768 | |
2119 | #ifndef _WIN32 |
2769 | sigemptyset (&sigfd_set); |
2120 | sigprocmask (SIG_SETMASK, &prev, 0); |
2770 | |
2121 | #endif |
2771 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2772 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2773 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2774 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2775 | } |
2122 | } |
2776 | } |
|
|
2777 | |
|
|
2778 | if (sigfd >= 0) |
|
|
2779 | { |
|
|
2780 | /* TODO: check .head */ |
|
|
2781 | sigaddset (&sigfd_set, w->signum); |
|
|
2782 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2783 | |
|
|
2784 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2785 | } |
|
|
2786 | #endif |
2123 | |
2787 | |
2124 | ev_start (EV_A_ (W)w, 1); |
2788 | ev_start (EV_A_ (W)w, 1); |
2125 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2789 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2126 | |
2790 | |
2127 | if (!((WL)w)->next) |
2791 | if (!((WL)w)->next) |
|
|
2792 | # if EV_USE_SIGNALFD |
|
|
2793 | if (sigfd < 0) /*TODO*/ |
|
|
2794 | # endif |
2128 | { |
2795 | { |
2129 | #if _WIN32 |
2796 | # ifdef _WIN32 |
|
|
2797 | evpipe_init (EV_A); |
|
|
2798 | |
2130 | signal (w->signum, ev_sighandler); |
2799 | signal (w->signum, ev_sighandler); |
2131 | #else |
2800 | # else |
2132 | struct sigaction sa; |
2801 | struct sigaction sa; |
|
|
2802 | |
|
|
2803 | evpipe_init (EV_A); |
|
|
2804 | |
2133 | sa.sa_handler = ev_sighandler; |
2805 | sa.sa_handler = ev_sighandler; |
2134 | sigfillset (&sa.sa_mask); |
2806 | sigfillset (&sa.sa_mask); |
2135 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2807 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2136 | sigaction (w->signum, &sa, 0); |
2808 | sigaction (w->signum, &sa, 0); |
|
|
2809 | |
|
|
2810 | sigemptyset (&sa.sa_mask); |
|
|
2811 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2812 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2137 | #endif |
2813 | #endif |
2138 | } |
2814 | } |
|
|
2815 | |
|
|
2816 | EV_FREQUENT_CHECK; |
2139 | } |
2817 | } |
2140 | |
2818 | |
2141 | void noinline |
2819 | void noinline |
2142 | ev_signal_stop (EV_P_ ev_signal *w) |
2820 | ev_signal_stop (EV_P_ ev_signal *w) |
2143 | { |
2821 | { |
2144 | clear_pending (EV_A_ (W)w); |
2822 | clear_pending (EV_A_ (W)w); |
2145 | if (expect_false (!ev_is_active (w))) |
2823 | if (expect_false (!ev_is_active (w))) |
2146 | return; |
2824 | return; |
2147 | |
2825 | |
|
|
2826 | EV_FREQUENT_CHECK; |
|
|
2827 | |
2148 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2828 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2149 | ev_stop (EV_A_ (W)w); |
2829 | ev_stop (EV_A_ (W)w); |
2150 | |
2830 | |
2151 | if (!signals [w->signum - 1].head) |
2831 | if (!signals [w->signum - 1].head) |
|
|
2832 | { |
|
|
2833 | #if EV_MULTIPLICITY |
|
|
2834 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2835 | #endif |
|
|
2836 | #if EV_USE_SIGNALFD |
|
|
2837 | if (sigfd >= 0) |
|
|
2838 | { |
|
|
2839 | sigset_t ss; |
|
|
2840 | |
|
|
2841 | sigemptyset (&ss); |
|
|
2842 | sigaddset (&ss, w->signum); |
|
|
2843 | sigdelset (&sigfd_set, w->signum); |
|
|
2844 | |
|
|
2845 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2846 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2847 | } |
|
|
2848 | else |
|
|
2849 | #endif |
2152 | signal (w->signum, SIG_DFL); |
2850 | signal (w->signum, SIG_DFL); |
|
|
2851 | } |
|
|
2852 | |
|
|
2853 | EV_FREQUENT_CHECK; |
2153 | } |
2854 | } |
|
|
2855 | |
|
|
2856 | #endif |
|
|
2857 | |
|
|
2858 | #if EV_CHILD_ENABLE |
2154 | |
2859 | |
2155 | void |
2860 | void |
2156 | ev_child_start (EV_P_ ev_child *w) |
2861 | ev_child_start (EV_P_ ev_child *w) |
2157 | { |
2862 | { |
2158 | #if EV_MULTIPLICITY |
2863 | #if EV_MULTIPLICITY |
2159 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2864 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2160 | #endif |
2865 | #endif |
2161 | if (expect_false (ev_is_active (w))) |
2866 | if (expect_false (ev_is_active (w))) |
2162 | return; |
2867 | return; |
2163 | |
2868 | |
|
|
2869 | EV_FREQUENT_CHECK; |
|
|
2870 | |
2164 | ev_start (EV_A_ (W)w, 1); |
2871 | ev_start (EV_A_ (W)w, 1); |
2165 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2872 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2873 | |
|
|
2874 | EV_FREQUENT_CHECK; |
2166 | } |
2875 | } |
2167 | |
2876 | |
2168 | void |
2877 | void |
2169 | ev_child_stop (EV_P_ ev_child *w) |
2878 | ev_child_stop (EV_P_ ev_child *w) |
2170 | { |
2879 | { |
2171 | clear_pending (EV_A_ (W)w); |
2880 | clear_pending (EV_A_ (W)w); |
2172 | if (expect_false (!ev_is_active (w))) |
2881 | if (expect_false (!ev_is_active (w))) |
2173 | return; |
2882 | return; |
2174 | |
2883 | |
|
|
2884 | EV_FREQUENT_CHECK; |
|
|
2885 | |
2175 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2886 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2176 | ev_stop (EV_A_ (W)w); |
2887 | ev_stop (EV_A_ (W)w); |
|
|
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
2177 | } |
2890 | } |
|
|
2891 | |
|
|
2892 | #endif |
2178 | |
2893 | |
2179 | #if EV_STAT_ENABLE |
2894 | #if EV_STAT_ENABLE |
2180 | |
2895 | |
2181 | # ifdef _WIN32 |
2896 | # ifdef _WIN32 |
2182 | # undef lstat |
2897 | # undef lstat |
2183 | # define lstat(a,b) _stati64 (a,b) |
2898 | # define lstat(a,b) _stati64 (a,b) |
2184 | # endif |
2899 | # endif |
2185 | |
2900 | |
2186 | #define DEF_STAT_INTERVAL 5.0074891 |
2901 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2902 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2187 | #define MIN_STAT_INTERVAL 0.1074891 |
2903 | #define MIN_STAT_INTERVAL 0.1074891 |
2188 | |
2904 | |
2189 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2905 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2190 | |
2906 | |
2191 | #if EV_USE_INOTIFY |
2907 | #if EV_USE_INOTIFY |
2192 | # define EV_INOTIFY_BUFSIZE 8192 |
2908 | |
|
|
2909 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2910 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2193 | |
2911 | |
2194 | static void noinline |
2912 | static void noinline |
2195 | infy_add (EV_P_ ev_stat *w) |
2913 | infy_add (EV_P_ ev_stat *w) |
2196 | { |
2914 | { |
2197 | 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); |
2915 | 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); |
2198 | |
2916 | |
2199 | if (w->wd < 0) |
2917 | if (w->wd >= 0) |
|
|
2918 | { |
|
|
2919 | struct statfs sfs; |
|
|
2920 | |
|
|
2921 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2922 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2923 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2924 | |
|
|
2925 | if (!fs_2625) |
|
|
2926 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2927 | else if (!statfs (w->path, &sfs) |
|
|
2928 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2929 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2930 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2931 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2932 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2933 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2934 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2935 | else |
|
|
2936 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2200 | { |
2937 | } |
2201 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2938 | else |
|
|
2939 | { |
|
|
2940 | /* can't use inotify, continue to stat */ |
|
|
2941 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2202 | |
2942 | |
2203 | /* monitor some parent directory for speedup hints */ |
2943 | /* if path is not there, monitor some parent directory for speedup hints */ |
2204 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2944 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2205 | /* but an efficiency issue only */ |
2945 | /* but an efficiency issue only */ |
2206 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2946 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2207 | { |
2947 | { |
2208 | char path [4096]; |
2948 | char path [4096]; |
2209 | strcpy (path, w->path); |
2949 | strcpy (path, w->path); |
… | |
… | |
2213 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2953 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2214 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2954 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2215 | |
2955 | |
2216 | char *pend = strrchr (path, '/'); |
2956 | char *pend = strrchr (path, '/'); |
2217 | |
2957 | |
2218 | if (!pend) |
2958 | if (!pend || pend == path) |
2219 | break; /* whoops, no '/', complain to your admin */ |
2959 | break; |
2220 | |
2960 | |
2221 | *pend = 0; |
2961 | *pend = 0; |
2222 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2962 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2223 | } |
2963 | } |
2224 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2964 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2225 | } |
2965 | } |
2226 | } |
2966 | } |
2227 | else |
|
|
2228 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2229 | |
2967 | |
2230 | if (w->wd >= 0) |
2968 | if (w->wd >= 0) |
2231 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2969 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2970 | |
|
|
2971 | /* now re-arm timer, if required */ |
|
|
2972 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2973 | ev_timer_again (EV_A_ &w->timer); |
|
|
2974 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2232 | } |
2975 | } |
2233 | |
2976 | |
2234 | static void noinline |
2977 | static void noinline |
2235 | infy_del (EV_P_ ev_stat *w) |
2978 | infy_del (EV_P_ ev_stat *w) |
2236 | { |
2979 | { |
… | |
… | |
2250 | |
2993 | |
2251 | static void noinline |
2994 | static void noinline |
2252 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2995 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2253 | { |
2996 | { |
2254 | if (slot < 0) |
2997 | if (slot < 0) |
2255 | /* overflow, need to check for all hahs slots */ |
2998 | /* overflow, need to check for all hash slots */ |
2256 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2999 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2257 | infy_wd (EV_A_ slot, wd, ev); |
3000 | infy_wd (EV_A_ slot, wd, ev); |
2258 | else |
3001 | else |
2259 | { |
3002 | { |
2260 | WL w_; |
3003 | WL w_; |
… | |
… | |
2266 | |
3009 | |
2267 | if (w->wd == wd || wd == -1) |
3010 | if (w->wd == wd || wd == -1) |
2268 | { |
3011 | { |
2269 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3012 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2270 | { |
3013 | { |
|
|
3014 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2271 | w->wd = -1; |
3015 | w->wd = -1; |
2272 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3016 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2273 | } |
3017 | } |
2274 | |
3018 | |
2275 | stat_timer_cb (EV_A_ &w->timer, 0); |
3019 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2280 | |
3024 | |
2281 | static void |
3025 | static void |
2282 | infy_cb (EV_P_ ev_io *w, int revents) |
3026 | infy_cb (EV_P_ ev_io *w, int revents) |
2283 | { |
3027 | { |
2284 | char buf [EV_INOTIFY_BUFSIZE]; |
3028 | char buf [EV_INOTIFY_BUFSIZE]; |
2285 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2286 | int ofs; |
3029 | int ofs; |
2287 | int len = read (fs_fd, buf, sizeof (buf)); |
3030 | int len = read (fs_fd, buf, sizeof (buf)); |
2288 | |
3031 | |
2289 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3032 | for (ofs = 0; ofs < len; ) |
|
|
3033 | { |
|
|
3034 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2290 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3035 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3036 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3037 | } |
2291 | } |
3038 | } |
2292 | |
3039 | |
2293 | void inline_size |
3040 | inline_size unsigned int |
|
|
3041 | ev_linux_version (void) |
|
|
3042 | { |
|
|
3043 | struct utsname buf; |
|
|
3044 | unsigned int v; |
|
|
3045 | int i; |
|
|
3046 | char *p = buf.release; |
|
|
3047 | |
|
|
3048 | if (uname (&buf)) |
|
|
3049 | return 0; |
|
|
3050 | |
|
|
3051 | for (i = 3+1; --i; ) |
|
|
3052 | { |
|
|
3053 | unsigned int c = 0; |
|
|
3054 | |
|
|
3055 | for (;;) |
|
|
3056 | { |
|
|
3057 | if (*p >= '0' && *p <= '9') |
|
|
3058 | c = c * 10 + *p++ - '0'; |
|
|
3059 | else |
|
|
3060 | { |
|
|
3061 | p += *p == '.'; |
|
|
3062 | break; |
|
|
3063 | } |
|
|
3064 | } |
|
|
3065 | |
|
|
3066 | v = (v << 8) | c; |
|
|
3067 | } |
|
|
3068 | |
|
|
3069 | return v; |
|
|
3070 | } |
|
|
3071 | |
|
|
3072 | inline_size void |
|
|
3073 | ev_check_2625 (EV_P) |
|
|
3074 | { |
|
|
3075 | /* kernels < 2.6.25 are borked |
|
|
3076 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3077 | */ |
|
|
3078 | if (ev_linux_version () < 0x020619) |
|
|
3079 | return; |
|
|
3080 | |
|
|
3081 | fs_2625 = 1; |
|
|
3082 | } |
|
|
3083 | |
|
|
3084 | inline_size int |
|
|
3085 | infy_newfd (void) |
|
|
3086 | { |
|
|
3087 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3088 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3089 | if (fd >= 0) |
|
|
3090 | return fd; |
|
|
3091 | #endif |
|
|
3092 | return inotify_init (); |
|
|
3093 | } |
|
|
3094 | |
|
|
3095 | inline_size void |
2294 | infy_init (EV_P) |
3096 | infy_init (EV_P) |
2295 | { |
3097 | { |
2296 | if (fs_fd != -2) |
3098 | if (fs_fd != -2) |
2297 | return; |
3099 | return; |
2298 | |
3100 | |
|
|
3101 | fs_fd = -1; |
|
|
3102 | |
|
|
3103 | ev_check_2625 (EV_A); |
|
|
3104 | |
2299 | fs_fd = inotify_init (); |
3105 | fs_fd = infy_newfd (); |
2300 | |
3106 | |
2301 | if (fs_fd >= 0) |
3107 | if (fs_fd >= 0) |
2302 | { |
3108 | { |
|
|
3109 | fd_intern (fs_fd); |
2303 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3110 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2304 | ev_set_priority (&fs_w, EV_MAXPRI); |
3111 | ev_set_priority (&fs_w, EV_MAXPRI); |
2305 | ev_io_start (EV_A_ &fs_w); |
3112 | ev_io_start (EV_A_ &fs_w); |
|
|
3113 | ev_unref (EV_A); |
2306 | } |
3114 | } |
2307 | } |
3115 | } |
2308 | |
3116 | |
2309 | void inline_size |
3117 | inline_size void |
2310 | infy_fork (EV_P) |
3118 | infy_fork (EV_P) |
2311 | { |
3119 | { |
2312 | int slot; |
3120 | int slot; |
2313 | |
3121 | |
2314 | if (fs_fd < 0) |
3122 | if (fs_fd < 0) |
2315 | return; |
3123 | return; |
2316 | |
3124 | |
|
|
3125 | ev_ref (EV_A); |
|
|
3126 | ev_io_stop (EV_A_ &fs_w); |
2317 | close (fs_fd); |
3127 | close (fs_fd); |
2318 | fs_fd = inotify_init (); |
3128 | fs_fd = infy_newfd (); |
|
|
3129 | |
|
|
3130 | if (fs_fd >= 0) |
|
|
3131 | { |
|
|
3132 | fd_intern (fs_fd); |
|
|
3133 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3134 | ev_io_start (EV_A_ &fs_w); |
|
|
3135 | ev_unref (EV_A); |
|
|
3136 | } |
2319 | |
3137 | |
2320 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3138 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2321 | { |
3139 | { |
2322 | WL w_ = fs_hash [slot].head; |
3140 | WL w_ = fs_hash [slot].head; |
2323 | fs_hash [slot].head = 0; |
3141 | fs_hash [slot].head = 0; |
… | |
… | |
2330 | w->wd = -1; |
3148 | w->wd = -1; |
2331 | |
3149 | |
2332 | if (fs_fd >= 0) |
3150 | if (fs_fd >= 0) |
2333 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3151 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2334 | else |
3152 | else |
|
|
3153 | { |
|
|
3154 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3155 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2335 | ev_timer_start (EV_A_ &w->timer); |
3156 | ev_timer_again (EV_A_ &w->timer); |
|
|
3157 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3158 | } |
2336 | } |
3159 | } |
2337 | |
|
|
2338 | } |
3160 | } |
2339 | } |
3161 | } |
2340 | |
3162 | |
|
|
3163 | #endif |
|
|
3164 | |
|
|
3165 | #ifdef _WIN32 |
|
|
3166 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3167 | #else |
|
|
3168 | # define EV_LSTAT(p,b) lstat (p, b) |
2341 | #endif |
3169 | #endif |
2342 | |
3170 | |
2343 | void |
3171 | void |
2344 | ev_stat_stat (EV_P_ ev_stat *w) |
3172 | ev_stat_stat (EV_P_ ev_stat *w) |
2345 | { |
3173 | { |
… | |
… | |
2352 | static void noinline |
3180 | static void noinline |
2353 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3181 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2354 | { |
3182 | { |
2355 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3183 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2356 | |
3184 | |
2357 | /* we copy this here each the time so that */ |
3185 | ev_statdata prev = w->attr; |
2358 | /* prev has the old value when the callback gets invoked */ |
|
|
2359 | w->prev = w->attr; |
|
|
2360 | ev_stat_stat (EV_A_ w); |
3186 | ev_stat_stat (EV_A_ w); |
2361 | |
3187 | |
2362 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3188 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2363 | if ( |
3189 | if ( |
2364 | w->prev.st_dev != w->attr.st_dev |
3190 | prev.st_dev != w->attr.st_dev |
2365 | || w->prev.st_ino != w->attr.st_ino |
3191 | || prev.st_ino != w->attr.st_ino |
2366 | || w->prev.st_mode != w->attr.st_mode |
3192 | || prev.st_mode != w->attr.st_mode |
2367 | || w->prev.st_nlink != w->attr.st_nlink |
3193 | || prev.st_nlink != w->attr.st_nlink |
2368 | || w->prev.st_uid != w->attr.st_uid |
3194 | || prev.st_uid != w->attr.st_uid |
2369 | || w->prev.st_gid != w->attr.st_gid |
3195 | || prev.st_gid != w->attr.st_gid |
2370 | || w->prev.st_rdev != w->attr.st_rdev |
3196 | || prev.st_rdev != w->attr.st_rdev |
2371 | || w->prev.st_size != w->attr.st_size |
3197 | || prev.st_size != w->attr.st_size |
2372 | || w->prev.st_atime != w->attr.st_atime |
3198 | || prev.st_atime != w->attr.st_atime |
2373 | || w->prev.st_mtime != w->attr.st_mtime |
3199 | || prev.st_mtime != w->attr.st_mtime |
2374 | || w->prev.st_ctime != w->attr.st_ctime |
3200 | || prev.st_ctime != w->attr.st_ctime |
2375 | ) { |
3201 | ) { |
|
|
3202 | /* we only update w->prev on actual differences */ |
|
|
3203 | /* in case we test more often than invoke the callback, */ |
|
|
3204 | /* to ensure that prev is always different to attr */ |
|
|
3205 | w->prev = prev; |
|
|
3206 | |
2376 | #if EV_USE_INOTIFY |
3207 | #if EV_USE_INOTIFY |
|
|
3208 | if (fs_fd >= 0) |
|
|
3209 | { |
2377 | infy_del (EV_A_ w); |
3210 | infy_del (EV_A_ w); |
2378 | infy_add (EV_A_ w); |
3211 | infy_add (EV_A_ w); |
2379 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3212 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3213 | } |
2380 | #endif |
3214 | #endif |
2381 | |
3215 | |
2382 | ev_feed_event (EV_A_ w, EV_STAT); |
3216 | ev_feed_event (EV_A_ w, EV_STAT); |
2383 | } |
3217 | } |
2384 | } |
3218 | } |
… | |
… | |
2387 | ev_stat_start (EV_P_ ev_stat *w) |
3221 | ev_stat_start (EV_P_ ev_stat *w) |
2388 | { |
3222 | { |
2389 | if (expect_false (ev_is_active (w))) |
3223 | if (expect_false (ev_is_active (w))) |
2390 | return; |
3224 | return; |
2391 | |
3225 | |
2392 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2393 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2394 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2395 | |
|
|
2396 | ev_stat_stat (EV_A_ w); |
3226 | ev_stat_stat (EV_A_ w); |
2397 | |
3227 | |
|
|
3228 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2398 | if (w->interval < MIN_STAT_INTERVAL) |
3229 | w->interval = MIN_STAT_INTERVAL; |
2399 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2400 | |
3230 | |
2401 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3231 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2402 | ev_set_priority (&w->timer, ev_priority (w)); |
3232 | ev_set_priority (&w->timer, ev_priority (w)); |
2403 | |
3233 | |
2404 | #if EV_USE_INOTIFY |
3234 | #if EV_USE_INOTIFY |
2405 | infy_init (EV_A); |
3235 | infy_init (EV_A); |
2406 | |
3236 | |
2407 | if (fs_fd >= 0) |
3237 | if (fs_fd >= 0) |
2408 | infy_add (EV_A_ w); |
3238 | infy_add (EV_A_ w); |
2409 | else |
3239 | else |
2410 | #endif |
3240 | #endif |
|
|
3241 | { |
2411 | ev_timer_start (EV_A_ &w->timer); |
3242 | ev_timer_again (EV_A_ &w->timer); |
|
|
3243 | ev_unref (EV_A); |
|
|
3244 | } |
2412 | |
3245 | |
2413 | ev_start (EV_A_ (W)w, 1); |
3246 | ev_start (EV_A_ (W)w, 1); |
|
|
3247 | |
|
|
3248 | EV_FREQUENT_CHECK; |
2414 | } |
3249 | } |
2415 | |
3250 | |
2416 | void |
3251 | void |
2417 | ev_stat_stop (EV_P_ ev_stat *w) |
3252 | ev_stat_stop (EV_P_ ev_stat *w) |
2418 | { |
3253 | { |
2419 | clear_pending (EV_A_ (W)w); |
3254 | clear_pending (EV_A_ (W)w); |
2420 | if (expect_false (!ev_is_active (w))) |
3255 | if (expect_false (!ev_is_active (w))) |
2421 | return; |
3256 | return; |
2422 | |
3257 | |
|
|
3258 | EV_FREQUENT_CHECK; |
|
|
3259 | |
2423 | #if EV_USE_INOTIFY |
3260 | #if EV_USE_INOTIFY |
2424 | infy_del (EV_A_ w); |
3261 | infy_del (EV_A_ w); |
2425 | #endif |
3262 | #endif |
|
|
3263 | |
|
|
3264 | if (ev_is_active (&w->timer)) |
|
|
3265 | { |
|
|
3266 | ev_ref (EV_A); |
2426 | ev_timer_stop (EV_A_ &w->timer); |
3267 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3268 | } |
2427 | |
3269 | |
2428 | ev_stop (EV_A_ (W)w); |
3270 | ev_stop (EV_A_ (W)w); |
|
|
3271 | |
|
|
3272 | EV_FREQUENT_CHECK; |
2429 | } |
3273 | } |
2430 | #endif |
3274 | #endif |
2431 | |
3275 | |
2432 | #if EV_IDLE_ENABLE |
3276 | #if EV_IDLE_ENABLE |
2433 | void |
3277 | void |
… | |
… | |
2435 | { |
3279 | { |
2436 | if (expect_false (ev_is_active (w))) |
3280 | if (expect_false (ev_is_active (w))) |
2437 | return; |
3281 | return; |
2438 | |
3282 | |
2439 | pri_adjust (EV_A_ (W)w); |
3283 | pri_adjust (EV_A_ (W)w); |
|
|
3284 | |
|
|
3285 | EV_FREQUENT_CHECK; |
2440 | |
3286 | |
2441 | { |
3287 | { |
2442 | int active = ++idlecnt [ABSPRI (w)]; |
3288 | int active = ++idlecnt [ABSPRI (w)]; |
2443 | |
3289 | |
2444 | ++idleall; |
3290 | ++idleall; |
2445 | ev_start (EV_A_ (W)w, active); |
3291 | ev_start (EV_A_ (W)w, active); |
2446 | |
3292 | |
2447 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3293 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2448 | idles [ABSPRI (w)][active - 1] = w; |
3294 | idles [ABSPRI (w)][active - 1] = w; |
2449 | } |
3295 | } |
|
|
3296 | |
|
|
3297 | EV_FREQUENT_CHECK; |
2450 | } |
3298 | } |
2451 | |
3299 | |
2452 | void |
3300 | void |
2453 | ev_idle_stop (EV_P_ ev_idle *w) |
3301 | ev_idle_stop (EV_P_ ev_idle *w) |
2454 | { |
3302 | { |
2455 | clear_pending (EV_A_ (W)w); |
3303 | clear_pending (EV_A_ (W)w); |
2456 | if (expect_false (!ev_is_active (w))) |
3304 | if (expect_false (!ev_is_active (w))) |
2457 | return; |
3305 | return; |
2458 | |
3306 | |
|
|
3307 | EV_FREQUENT_CHECK; |
|
|
3308 | |
2459 | { |
3309 | { |
2460 | int active = ev_active (w); |
3310 | int active = ev_active (w); |
2461 | |
3311 | |
2462 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3312 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2463 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
3313 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2464 | |
3314 | |
2465 | ev_stop (EV_A_ (W)w); |
3315 | ev_stop (EV_A_ (W)w); |
2466 | --idleall; |
3316 | --idleall; |
2467 | } |
3317 | } |
|
|
3318 | |
|
|
3319 | EV_FREQUENT_CHECK; |
2468 | } |
3320 | } |
2469 | #endif |
3321 | #endif |
2470 | |
3322 | |
2471 | void |
3323 | void |
2472 | ev_prepare_start (EV_P_ ev_prepare *w) |
3324 | ev_prepare_start (EV_P_ ev_prepare *w) |
2473 | { |
3325 | { |
2474 | if (expect_false (ev_is_active (w))) |
3326 | if (expect_false (ev_is_active (w))) |
2475 | return; |
3327 | return; |
|
|
3328 | |
|
|
3329 | EV_FREQUENT_CHECK; |
2476 | |
3330 | |
2477 | ev_start (EV_A_ (W)w, ++preparecnt); |
3331 | ev_start (EV_A_ (W)w, ++preparecnt); |
2478 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3332 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2479 | prepares [preparecnt - 1] = w; |
3333 | prepares [preparecnt - 1] = w; |
|
|
3334 | |
|
|
3335 | EV_FREQUENT_CHECK; |
2480 | } |
3336 | } |
2481 | |
3337 | |
2482 | void |
3338 | void |
2483 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3339 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2484 | { |
3340 | { |
2485 | clear_pending (EV_A_ (W)w); |
3341 | clear_pending (EV_A_ (W)w); |
2486 | if (expect_false (!ev_is_active (w))) |
3342 | if (expect_false (!ev_is_active (w))) |
2487 | return; |
3343 | return; |
2488 | |
3344 | |
|
|
3345 | EV_FREQUENT_CHECK; |
|
|
3346 | |
2489 | { |
3347 | { |
2490 | int active = ev_active (w); |
3348 | int active = ev_active (w); |
2491 | |
3349 | |
2492 | prepares [active - 1] = prepares [--preparecnt]; |
3350 | prepares [active - 1] = prepares [--preparecnt]; |
2493 | ev_active (prepares [active - 1]) = active; |
3351 | ev_active (prepares [active - 1]) = active; |
2494 | } |
3352 | } |
2495 | |
3353 | |
2496 | ev_stop (EV_A_ (W)w); |
3354 | ev_stop (EV_A_ (W)w); |
|
|
3355 | |
|
|
3356 | EV_FREQUENT_CHECK; |
2497 | } |
3357 | } |
2498 | |
3358 | |
2499 | void |
3359 | void |
2500 | ev_check_start (EV_P_ ev_check *w) |
3360 | ev_check_start (EV_P_ ev_check *w) |
2501 | { |
3361 | { |
2502 | if (expect_false (ev_is_active (w))) |
3362 | if (expect_false (ev_is_active (w))) |
2503 | return; |
3363 | return; |
|
|
3364 | |
|
|
3365 | EV_FREQUENT_CHECK; |
2504 | |
3366 | |
2505 | ev_start (EV_A_ (W)w, ++checkcnt); |
3367 | ev_start (EV_A_ (W)w, ++checkcnt); |
2506 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3368 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2507 | checks [checkcnt - 1] = w; |
3369 | checks [checkcnt - 1] = w; |
|
|
3370 | |
|
|
3371 | EV_FREQUENT_CHECK; |
2508 | } |
3372 | } |
2509 | |
3373 | |
2510 | void |
3374 | void |
2511 | ev_check_stop (EV_P_ ev_check *w) |
3375 | ev_check_stop (EV_P_ ev_check *w) |
2512 | { |
3376 | { |
2513 | clear_pending (EV_A_ (W)w); |
3377 | clear_pending (EV_A_ (W)w); |
2514 | if (expect_false (!ev_is_active (w))) |
3378 | if (expect_false (!ev_is_active (w))) |
2515 | return; |
3379 | return; |
2516 | |
3380 | |
|
|
3381 | EV_FREQUENT_CHECK; |
|
|
3382 | |
2517 | { |
3383 | { |
2518 | int active = ev_active (w); |
3384 | int active = ev_active (w); |
2519 | |
3385 | |
2520 | checks [active - 1] = checks [--checkcnt]; |
3386 | checks [active - 1] = checks [--checkcnt]; |
2521 | ev_active (checks [active - 1]) = active; |
3387 | ev_active (checks [active - 1]) = active; |
2522 | } |
3388 | } |
2523 | |
3389 | |
2524 | ev_stop (EV_A_ (W)w); |
3390 | ev_stop (EV_A_ (W)w); |
|
|
3391 | |
|
|
3392 | EV_FREQUENT_CHECK; |
2525 | } |
3393 | } |
2526 | |
3394 | |
2527 | #if EV_EMBED_ENABLE |
3395 | #if EV_EMBED_ENABLE |
2528 | void noinline |
3396 | void noinline |
2529 | ev_embed_sweep (EV_P_ ev_embed *w) |
3397 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2546 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3414 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2547 | { |
3415 | { |
2548 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3416 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2549 | |
3417 | |
2550 | { |
3418 | { |
2551 | struct ev_loop *loop = w->other; |
3419 | EV_P = w->other; |
2552 | |
3420 | |
2553 | while (fdchangecnt) |
3421 | while (fdchangecnt) |
2554 | { |
3422 | { |
2555 | fd_reify (EV_A); |
3423 | fd_reify (EV_A); |
2556 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3424 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2557 | } |
3425 | } |
2558 | } |
3426 | } |
2559 | } |
3427 | } |
2560 | |
3428 | |
|
|
3429 | static void |
|
|
3430 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3431 | { |
|
|
3432 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3433 | |
|
|
3434 | ev_embed_stop (EV_A_ w); |
|
|
3435 | |
|
|
3436 | { |
|
|
3437 | EV_P = w->other; |
|
|
3438 | |
|
|
3439 | ev_loop_fork (EV_A); |
|
|
3440 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3441 | } |
|
|
3442 | |
|
|
3443 | ev_embed_start (EV_A_ w); |
|
|
3444 | } |
|
|
3445 | |
2561 | #if 0 |
3446 | #if 0 |
2562 | static void |
3447 | static void |
2563 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3448 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2564 | { |
3449 | { |
2565 | ev_idle_stop (EV_A_ idle); |
3450 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2571 | { |
3456 | { |
2572 | if (expect_false (ev_is_active (w))) |
3457 | if (expect_false (ev_is_active (w))) |
2573 | return; |
3458 | return; |
2574 | |
3459 | |
2575 | { |
3460 | { |
2576 | struct ev_loop *loop = w->other; |
3461 | EV_P = w->other; |
2577 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3462 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2578 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3463 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2579 | } |
3464 | } |
|
|
3465 | |
|
|
3466 | EV_FREQUENT_CHECK; |
2580 | |
3467 | |
2581 | ev_set_priority (&w->io, ev_priority (w)); |
3468 | ev_set_priority (&w->io, ev_priority (w)); |
2582 | ev_io_start (EV_A_ &w->io); |
3469 | ev_io_start (EV_A_ &w->io); |
2583 | |
3470 | |
2584 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3471 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2585 | ev_set_priority (&w->prepare, EV_MINPRI); |
3472 | ev_set_priority (&w->prepare, EV_MINPRI); |
2586 | ev_prepare_start (EV_A_ &w->prepare); |
3473 | ev_prepare_start (EV_A_ &w->prepare); |
2587 | |
3474 | |
|
|
3475 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3476 | ev_fork_start (EV_A_ &w->fork); |
|
|
3477 | |
2588 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3478 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2589 | |
3479 | |
2590 | ev_start (EV_A_ (W)w, 1); |
3480 | ev_start (EV_A_ (W)w, 1); |
|
|
3481 | |
|
|
3482 | EV_FREQUENT_CHECK; |
2591 | } |
3483 | } |
2592 | |
3484 | |
2593 | void |
3485 | void |
2594 | ev_embed_stop (EV_P_ ev_embed *w) |
3486 | ev_embed_stop (EV_P_ ev_embed *w) |
2595 | { |
3487 | { |
2596 | clear_pending (EV_A_ (W)w); |
3488 | clear_pending (EV_A_ (W)w); |
2597 | if (expect_false (!ev_is_active (w))) |
3489 | if (expect_false (!ev_is_active (w))) |
2598 | return; |
3490 | return; |
2599 | |
3491 | |
|
|
3492 | EV_FREQUENT_CHECK; |
|
|
3493 | |
2600 | ev_io_stop (EV_A_ &w->io); |
3494 | ev_io_stop (EV_A_ &w->io); |
2601 | ev_prepare_stop (EV_A_ &w->prepare); |
3495 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3496 | ev_fork_stop (EV_A_ &w->fork); |
2602 | |
3497 | |
2603 | ev_stop (EV_A_ (W)w); |
3498 | ev_stop (EV_A_ (W)w); |
|
|
3499 | |
|
|
3500 | EV_FREQUENT_CHECK; |
2604 | } |
3501 | } |
2605 | #endif |
3502 | #endif |
2606 | |
3503 | |
2607 | #if EV_FORK_ENABLE |
3504 | #if EV_FORK_ENABLE |
2608 | void |
3505 | void |
2609 | ev_fork_start (EV_P_ ev_fork *w) |
3506 | ev_fork_start (EV_P_ ev_fork *w) |
2610 | { |
3507 | { |
2611 | if (expect_false (ev_is_active (w))) |
3508 | if (expect_false (ev_is_active (w))) |
2612 | return; |
3509 | return; |
|
|
3510 | |
|
|
3511 | EV_FREQUENT_CHECK; |
2613 | |
3512 | |
2614 | ev_start (EV_A_ (W)w, ++forkcnt); |
3513 | ev_start (EV_A_ (W)w, ++forkcnt); |
2615 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3514 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2616 | forks [forkcnt - 1] = w; |
3515 | forks [forkcnt - 1] = w; |
|
|
3516 | |
|
|
3517 | EV_FREQUENT_CHECK; |
2617 | } |
3518 | } |
2618 | |
3519 | |
2619 | void |
3520 | void |
2620 | ev_fork_stop (EV_P_ ev_fork *w) |
3521 | ev_fork_stop (EV_P_ ev_fork *w) |
2621 | { |
3522 | { |
2622 | clear_pending (EV_A_ (W)w); |
3523 | clear_pending (EV_A_ (W)w); |
2623 | if (expect_false (!ev_is_active (w))) |
3524 | if (expect_false (!ev_is_active (w))) |
2624 | return; |
3525 | return; |
2625 | |
3526 | |
|
|
3527 | EV_FREQUENT_CHECK; |
|
|
3528 | |
2626 | { |
3529 | { |
2627 | int active = ev_active (w); |
3530 | int active = ev_active (w); |
2628 | |
3531 | |
2629 | forks [active - 1] = forks [--forkcnt]; |
3532 | forks [active - 1] = forks [--forkcnt]; |
2630 | ev_active (forks [active - 1]) = active; |
3533 | ev_active (forks [active - 1]) = active; |
2631 | } |
3534 | } |
2632 | |
3535 | |
2633 | ev_stop (EV_A_ (W)w); |
3536 | ev_stop (EV_A_ (W)w); |
|
|
3537 | |
|
|
3538 | EV_FREQUENT_CHECK; |
2634 | } |
3539 | } |
2635 | #endif |
3540 | #endif |
2636 | |
3541 | |
2637 | #if EV_ASYNC_ENABLE |
3542 | #if EV_ASYNC_ENABLE |
2638 | void |
3543 | void |
… | |
… | |
2640 | { |
3545 | { |
2641 | if (expect_false (ev_is_active (w))) |
3546 | if (expect_false (ev_is_active (w))) |
2642 | return; |
3547 | return; |
2643 | |
3548 | |
2644 | evpipe_init (EV_A); |
3549 | evpipe_init (EV_A); |
|
|
3550 | |
|
|
3551 | EV_FREQUENT_CHECK; |
2645 | |
3552 | |
2646 | ev_start (EV_A_ (W)w, ++asynccnt); |
3553 | ev_start (EV_A_ (W)w, ++asynccnt); |
2647 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3554 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2648 | asyncs [asynccnt - 1] = w; |
3555 | asyncs [asynccnt - 1] = w; |
|
|
3556 | |
|
|
3557 | EV_FREQUENT_CHECK; |
2649 | } |
3558 | } |
2650 | |
3559 | |
2651 | void |
3560 | void |
2652 | ev_async_stop (EV_P_ ev_async *w) |
3561 | ev_async_stop (EV_P_ ev_async *w) |
2653 | { |
3562 | { |
2654 | clear_pending (EV_A_ (W)w); |
3563 | clear_pending (EV_A_ (W)w); |
2655 | if (expect_false (!ev_is_active (w))) |
3564 | if (expect_false (!ev_is_active (w))) |
2656 | return; |
3565 | return; |
2657 | |
3566 | |
|
|
3567 | EV_FREQUENT_CHECK; |
|
|
3568 | |
2658 | { |
3569 | { |
2659 | int active = ev_active (w); |
3570 | int active = ev_active (w); |
2660 | |
3571 | |
2661 | asyncs [active - 1] = asyncs [--asynccnt]; |
3572 | asyncs [active - 1] = asyncs [--asynccnt]; |
2662 | ev_active (asyncs [active - 1]) = active; |
3573 | ev_active (asyncs [active - 1]) = active; |
2663 | } |
3574 | } |
2664 | |
3575 | |
2665 | ev_stop (EV_A_ (W)w); |
3576 | ev_stop (EV_A_ (W)w); |
|
|
3577 | |
|
|
3578 | EV_FREQUENT_CHECK; |
2666 | } |
3579 | } |
2667 | |
3580 | |
2668 | void |
3581 | void |
2669 | ev_async_send (EV_P_ ev_async *w) |
3582 | ev_async_send (EV_P_ ev_async *w) |
2670 | { |
3583 | { |
2671 | w->sent = 1; |
3584 | w->sent = 1; |
2672 | evpipe_write (EV_A_ &gotasync); |
3585 | evpipe_write (EV_A_ &async_pending); |
2673 | } |
3586 | } |
2674 | #endif |
3587 | #endif |
2675 | |
3588 | |
2676 | /*****************************************************************************/ |
3589 | /*****************************************************************************/ |
2677 | |
3590 | |
… | |
… | |
2687 | once_cb (EV_P_ struct ev_once *once, int revents) |
3600 | once_cb (EV_P_ struct ev_once *once, int revents) |
2688 | { |
3601 | { |
2689 | void (*cb)(int revents, void *arg) = once->cb; |
3602 | void (*cb)(int revents, void *arg) = once->cb; |
2690 | void *arg = once->arg; |
3603 | void *arg = once->arg; |
2691 | |
3604 | |
2692 | ev_io_stop (EV_A_ &once->io); |
3605 | ev_io_stop (EV_A_ &once->io); |
2693 | ev_timer_stop (EV_A_ &once->to); |
3606 | ev_timer_stop (EV_A_ &once->to); |
2694 | ev_free (once); |
3607 | ev_free (once); |
2695 | |
3608 | |
2696 | cb (revents, arg); |
3609 | cb (revents, arg); |
2697 | } |
3610 | } |
2698 | |
3611 | |
2699 | static void |
3612 | static void |
2700 | once_cb_io (EV_P_ ev_io *w, int revents) |
3613 | once_cb_io (EV_P_ ev_io *w, int revents) |
2701 | { |
3614 | { |
2702 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3615 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3616 | |
|
|
3617 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2703 | } |
3618 | } |
2704 | |
3619 | |
2705 | static void |
3620 | static void |
2706 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3621 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2707 | { |
3622 | { |
2708 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3623 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3624 | |
|
|
3625 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2709 | } |
3626 | } |
2710 | |
3627 | |
2711 | void |
3628 | void |
2712 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3629 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2713 | { |
3630 | { |
… | |
… | |
2735 | ev_timer_set (&once->to, timeout, 0.); |
3652 | ev_timer_set (&once->to, timeout, 0.); |
2736 | ev_timer_start (EV_A_ &once->to); |
3653 | ev_timer_start (EV_A_ &once->to); |
2737 | } |
3654 | } |
2738 | } |
3655 | } |
2739 | |
3656 | |
|
|
3657 | /*****************************************************************************/ |
|
|
3658 | |
|
|
3659 | #if EV_WALK_ENABLE |
|
|
3660 | void |
|
|
3661 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3662 | { |
|
|
3663 | int i, j; |
|
|
3664 | ev_watcher_list *wl, *wn; |
|
|
3665 | |
|
|
3666 | if (types & (EV_IO | EV_EMBED)) |
|
|
3667 | for (i = 0; i < anfdmax; ++i) |
|
|
3668 | for (wl = anfds [i].head; wl; ) |
|
|
3669 | { |
|
|
3670 | wn = wl->next; |
|
|
3671 | |
|
|
3672 | #if EV_EMBED_ENABLE |
|
|
3673 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3674 | { |
|
|
3675 | if (types & EV_EMBED) |
|
|
3676 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3677 | } |
|
|
3678 | else |
|
|
3679 | #endif |
|
|
3680 | #if EV_USE_INOTIFY |
|
|
3681 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3682 | ; |
|
|
3683 | else |
|
|
3684 | #endif |
|
|
3685 | if ((ev_io *)wl != &pipe_w) |
|
|
3686 | if (types & EV_IO) |
|
|
3687 | cb (EV_A_ EV_IO, wl); |
|
|
3688 | |
|
|
3689 | wl = wn; |
|
|
3690 | } |
|
|
3691 | |
|
|
3692 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3693 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3694 | #if EV_STAT_ENABLE |
|
|
3695 | /*TODO: timer is not always active*/ |
|
|
3696 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3697 | { |
|
|
3698 | if (types & EV_STAT) |
|
|
3699 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3700 | } |
|
|
3701 | else |
|
|
3702 | #endif |
|
|
3703 | if (types & EV_TIMER) |
|
|
3704 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3705 | |
|
|
3706 | #if EV_PERIODIC_ENABLE |
|
|
3707 | if (types & EV_PERIODIC) |
|
|
3708 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3709 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3710 | #endif |
|
|
3711 | |
|
|
3712 | #if EV_IDLE_ENABLE |
|
|
3713 | if (types & EV_IDLE) |
|
|
3714 | for (j = NUMPRI; i--; ) |
|
|
3715 | for (i = idlecnt [j]; i--; ) |
|
|
3716 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3717 | #endif |
|
|
3718 | |
|
|
3719 | #if EV_FORK_ENABLE |
|
|
3720 | if (types & EV_FORK) |
|
|
3721 | for (i = forkcnt; i--; ) |
|
|
3722 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3723 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3724 | #endif |
|
|
3725 | |
|
|
3726 | #if EV_ASYNC_ENABLE |
|
|
3727 | if (types & EV_ASYNC) |
|
|
3728 | for (i = asynccnt; i--; ) |
|
|
3729 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3730 | #endif |
|
|
3731 | |
|
|
3732 | if (types & EV_PREPARE) |
|
|
3733 | for (i = preparecnt; i--; ) |
|
|
3734 | #if EV_EMBED_ENABLE |
|
|
3735 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3736 | #endif |
|
|
3737 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3738 | |
|
|
3739 | if (types & EV_CHECK) |
|
|
3740 | for (i = checkcnt; i--; ) |
|
|
3741 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3742 | |
|
|
3743 | if (types & EV_SIGNAL) |
|
|
3744 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3745 | for (wl = signals [i].head; wl; ) |
|
|
3746 | { |
|
|
3747 | wn = wl->next; |
|
|
3748 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3749 | wl = wn; |
|
|
3750 | } |
|
|
3751 | |
|
|
3752 | if (types & EV_CHILD) |
|
|
3753 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3754 | for (wl = childs [i]; wl; ) |
|
|
3755 | { |
|
|
3756 | wn = wl->next; |
|
|
3757 | cb (EV_A_ EV_CHILD, wl); |
|
|
3758 | wl = wn; |
|
|
3759 | } |
|
|
3760 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3761 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3762 | } |
|
|
3763 | #endif |
|
|
3764 | |
2740 | #if EV_MULTIPLICITY |
3765 | #if EV_MULTIPLICITY |
2741 | #include "ev_wrap.h" |
3766 | #include "ev_wrap.h" |
2742 | #endif |
3767 | #endif |
2743 | |
3768 | |
2744 | #ifdef __cplusplus |
3769 | #ifdef __cplusplus |