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 |
427 | /* hash table entry per inotify-id */ |
648 | /* hash table entry per inotify-id */ |
428 | typedef struct |
649 | typedef struct |
… | |
… | |
430 | WL head; |
651 | WL head; |
431 | } ANFS; |
652 | } ANFS; |
432 | #endif |
653 | #endif |
433 | |
654 | |
434 | /* Heap Entry */ |
655 | /* Heap Entry */ |
435 | #define EV_HEAP_CACHE_AT 0 |
|
|
436 | #if EV_HEAP_CACHE_AT |
656 | #if EV_HEAP_CACHE_AT |
|
|
657 | /* a heap element */ |
437 | typedef struct { |
658 | typedef struct { |
|
|
659 | ev_tstamp at; |
438 | WT w; |
660 | WT w; |
439 | ev_tstamp at; |
|
|
440 | } ANHE; |
661 | } ANHE; |
441 | |
662 | |
442 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
663 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
443 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
664 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
444 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
665 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
445 | #else |
666 | #else |
|
|
667 | /* a heap element */ |
446 | typedef WT ANHE; |
668 | typedef WT ANHE; |
447 | |
669 | |
448 | #define ANHE_w(he) (he) |
670 | #define ANHE_w(he) (he) |
449 | #define ANHE_at(he) (he)->at |
671 | #define ANHE_at(he) (he)->at |
450 | #define ANHE_at_set(he) |
672 | #define ANHE_at_cache(he) |
451 | #endif |
673 | #endif |
452 | |
674 | |
453 | #if EV_MULTIPLICITY |
675 | #if EV_MULTIPLICITY |
454 | |
676 | |
455 | struct ev_loop |
677 | struct ev_loop |
… | |
… | |
474 | |
696 | |
475 | static int ev_default_loop_ptr; |
697 | static int ev_default_loop_ptr; |
476 | |
698 | |
477 | #endif |
699 | #endif |
478 | |
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 | |
479 | /*****************************************************************************/ |
713 | /*****************************************************************************/ |
480 | |
714 | |
|
|
715 | #ifndef EV_HAVE_EV_TIME |
481 | ev_tstamp |
716 | ev_tstamp |
482 | ev_time (void) |
717 | ev_time (void) |
483 | { |
718 | { |
484 | #if EV_USE_REALTIME |
719 | #if EV_USE_REALTIME |
|
|
720 | if (expect_true (have_realtime)) |
|
|
721 | { |
485 | struct timespec ts; |
722 | struct timespec ts; |
486 | clock_gettime (CLOCK_REALTIME, &ts); |
723 | clock_gettime (CLOCK_REALTIME, &ts); |
487 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
724 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
488 | #else |
725 | } |
|
|
726 | #endif |
|
|
727 | |
489 | struct timeval tv; |
728 | struct timeval tv; |
490 | gettimeofday (&tv, 0); |
729 | gettimeofday (&tv, 0); |
491 | return tv.tv_sec + tv.tv_usec * 1e-6; |
730 | return tv.tv_sec + tv.tv_usec * 1e-6; |
492 | #endif |
|
|
493 | } |
731 | } |
|
|
732 | #endif |
494 | |
733 | |
495 | ev_tstamp inline_size |
734 | inline_size ev_tstamp |
496 | get_clock (void) |
735 | get_clock (void) |
497 | { |
736 | { |
498 | #if EV_USE_MONOTONIC |
737 | #if EV_USE_MONOTONIC |
499 | if (expect_true (have_monotonic)) |
738 | if (expect_true (have_monotonic)) |
500 | { |
739 | { |
… | |
… | |
533 | struct timeval tv; |
772 | struct timeval tv; |
534 | |
773 | |
535 | tv.tv_sec = (time_t)delay; |
774 | tv.tv_sec = (time_t)delay; |
536 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
775 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
537 | |
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 */ |
538 | select (0, 0, 0, 0, &tv); |
780 | select (0, 0, 0, 0, &tv); |
539 | #endif |
781 | #endif |
540 | } |
782 | } |
541 | } |
783 | } |
542 | |
784 | |
543 | /*****************************************************************************/ |
785 | /*****************************************************************************/ |
544 | |
786 | |
545 | #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 */ |
546 | |
788 | |
547 | 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 |
548 | array_nextsize (int elem, int cur, int cnt) |
792 | array_nextsize (int elem, int cur, int cnt) |
549 | { |
793 | { |
550 | int ncur = cur + 1; |
794 | int ncur = cur + 1; |
551 | |
795 | |
552 | do |
796 | do |
… | |
… | |
569 | array_realloc (int elem, void *base, int *cur, int cnt) |
813 | array_realloc (int elem, void *base, int *cur, int cnt) |
570 | { |
814 | { |
571 | *cur = array_nextsize (elem, *cur, cnt); |
815 | *cur = array_nextsize (elem, *cur, cnt); |
572 | return ev_realloc (base, elem * *cur); |
816 | return ev_realloc (base, elem * *cur); |
573 | } |
817 | } |
|
|
818 | |
|
|
819 | #define array_init_zero(base,count) \ |
|
|
820 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
574 | |
821 | |
575 | #define array_needsize(type,base,cur,cnt,init) \ |
822 | #define array_needsize(type,base,cur,cnt,init) \ |
576 | if (expect_false ((cnt) > (cur))) \ |
823 | if (expect_false ((cnt) > (cur))) \ |
577 | { \ |
824 | { \ |
578 | int ocur_ = (cur); \ |
825 | int ocur_ = (cur); \ |
… | |
… | |
590 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
837 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
591 | } |
838 | } |
592 | #endif |
839 | #endif |
593 | |
840 | |
594 | #define array_free(stem, idx) \ |
841 | #define array_free(stem, idx) \ |
595 | 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 |
596 | |
843 | |
597 | /*****************************************************************************/ |
844 | /*****************************************************************************/ |
|
|
845 | |
|
|
846 | /* dummy callback for pending events */ |
|
|
847 | static void noinline |
|
|
848 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
849 | { |
|
|
850 | } |
598 | |
851 | |
599 | void noinline |
852 | void noinline |
600 | ev_feed_event (EV_P_ void *w, int revents) |
853 | ev_feed_event (EV_P_ void *w, int revents) |
601 | { |
854 | { |
602 | W w_ = (W)w; |
855 | W w_ = (W)w; |
… | |
… | |
611 | pendings [pri][w_->pending - 1].w = w_; |
864 | pendings [pri][w_->pending - 1].w = w_; |
612 | pendings [pri][w_->pending - 1].events = revents; |
865 | pendings [pri][w_->pending - 1].events = revents; |
613 | } |
866 | } |
614 | } |
867 | } |
615 | |
868 | |
616 | 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 |
617 | queue_events (EV_P_ W *events, int eventcnt, int type) |
885 | queue_events (EV_P_ W *events, int eventcnt, int type) |
618 | { |
886 | { |
619 | int i; |
887 | int i; |
620 | |
888 | |
621 | for (i = 0; i < eventcnt; ++i) |
889 | for (i = 0; i < eventcnt; ++i) |
622 | ev_feed_event (EV_A_ events [i], type); |
890 | ev_feed_event (EV_A_ events [i], type); |
623 | } |
891 | } |
624 | |
892 | |
625 | /*****************************************************************************/ |
893 | /*****************************************************************************/ |
626 | |
894 | |
627 | void inline_size |
895 | inline_speed void |
628 | anfds_init (ANFD *base, int count) |
|
|
629 | { |
|
|
630 | while (count--) |
|
|
631 | { |
|
|
632 | base->head = 0; |
|
|
633 | base->events = EV_NONE; |
|
|
634 | base->reify = 0; |
|
|
635 | |
|
|
636 | ++base; |
|
|
637 | } |
|
|
638 | } |
|
|
639 | |
|
|
640 | void inline_speed |
|
|
641 | fd_event (EV_P_ int fd, int revents) |
896 | fd_event_nocheck (EV_P_ int fd, int revents) |
642 | { |
897 | { |
643 | ANFD *anfd = anfds + fd; |
898 | ANFD *anfd = anfds + fd; |
644 | ev_io *w; |
899 | ev_io *w; |
645 | |
900 | |
646 | 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) |
… | |
… | |
650 | if (ev) |
905 | if (ev) |
651 | ev_feed_event (EV_A_ (W)w, ev); |
906 | ev_feed_event (EV_A_ (W)w, ev); |
652 | } |
907 | } |
653 | } |
908 | } |
654 | |
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_nocheck (EV_A_ fd, revents); |
|
|
919 | } |
|
|
920 | |
655 | void |
921 | void |
656 | ev_feed_fd_event (EV_P_ int fd, int revents) |
922 | ev_feed_fd_event (EV_P_ int fd, int revents) |
657 | { |
923 | { |
658 | if (fd >= 0 && fd < anfdmax) |
924 | if (fd >= 0 && fd < anfdmax) |
659 | fd_event (EV_A_ fd, revents); |
925 | fd_event_nocheck (EV_A_ fd, revents); |
660 | } |
926 | } |
661 | |
927 | |
662 | 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 |
663 | fd_reify (EV_P) |
931 | fd_reify (EV_P) |
664 | { |
932 | { |
665 | int i; |
933 | int i; |
666 | |
934 | |
667 | for (i = 0; i < fdchangecnt; ++i) |
935 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
676 | events |= (unsigned char)w->events; |
944 | events |= (unsigned char)w->events; |
677 | |
945 | |
678 | #if EV_SELECT_IS_WINSOCKET |
946 | #if EV_SELECT_IS_WINSOCKET |
679 | if (events) |
947 | if (events) |
680 | { |
948 | { |
681 | unsigned long argp; |
949 | unsigned long arg; |
682 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
683 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
950 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
684 | #else |
|
|
685 | anfd->handle = _get_osfhandle (fd); |
|
|
686 | #endif |
|
|
687 | 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)); |
688 | } |
952 | } |
689 | #endif |
953 | #endif |
690 | |
954 | |
691 | { |
955 | { |
692 | unsigned char o_events = anfd->events; |
956 | unsigned char o_events = anfd->events; |
693 | unsigned char o_reify = anfd->reify; |
957 | unsigned char o_reify = anfd->reify; |
694 | |
958 | |
695 | anfd->reify = 0; |
959 | anfd->reify = 0; |
696 | anfd->events = events; |
960 | anfd->events = events; |
697 | |
961 | |
698 | if (o_events != events || o_reify & EV_IOFDSET) |
962 | if (o_events != events || o_reify & EV__IOFDSET) |
699 | backend_modify (EV_A_ fd, o_events, events); |
963 | backend_modify (EV_A_ fd, o_events, events); |
700 | } |
964 | } |
701 | } |
965 | } |
702 | |
966 | |
703 | fdchangecnt = 0; |
967 | fdchangecnt = 0; |
704 | } |
968 | } |
705 | |
969 | |
706 | void inline_size |
970 | /* something about the given fd changed */ |
|
|
971 | inline_size void |
707 | fd_change (EV_P_ int fd, int flags) |
972 | fd_change (EV_P_ int fd, int flags) |
708 | { |
973 | { |
709 | unsigned char reify = anfds [fd].reify; |
974 | unsigned char reify = anfds [fd].reify; |
710 | anfds [fd].reify |= flags; |
975 | anfds [fd].reify |= flags; |
711 | |
976 | |
… | |
… | |
715 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
980 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
716 | fdchanges [fdchangecnt - 1] = fd; |
981 | fdchanges [fdchangecnt - 1] = fd; |
717 | } |
982 | } |
718 | } |
983 | } |
719 | |
984 | |
720 | void inline_speed |
985 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
986 | inline_speed void |
721 | fd_kill (EV_P_ int fd) |
987 | fd_kill (EV_P_ int fd) |
722 | { |
988 | { |
723 | ev_io *w; |
989 | ev_io *w; |
724 | |
990 | |
725 | while ((w = (ev_io *)anfds [fd].head)) |
991 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
727 | ev_io_stop (EV_A_ w); |
993 | ev_io_stop (EV_A_ w); |
728 | 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); |
729 | } |
995 | } |
730 | } |
996 | } |
731 | |
997 | |
732 | int inline_size |
998 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
999 | inline_size int |
733 | fd_valid (int fd) |
1000 | fd_valid (int fd) |
734 | { |
1001 | { |
735 | #ifdef _WIN32 |
1002 | #ifdef _WIN32 |
736 | return _get_osfhandle (fd) != -1; |
1003 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
737 | #else |
1004 | #else |
738 | return fcntl (fd, F_GETFD) != -1; |
1005 | return fcntl (fd, F_GETFD) != -1; |
739 | #endif |
1006 | #endif |
740 | } |
1007 | } |
741 | |
1008 | |
… | |
… | |
745 | { |
1012 | { |
746 | int fd; |
1013 | int fd; |
747 | |
1014 | |
748 | for (fd = 0; fd < anfdmax; ++fd) |
1015 | for (fd = 0; fd < anfdmax; ++fd) |
749 | if (anfds [fd].events) |
1016 | if (anfds [fd].events) |
750 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1017 | if (!fd_valid (fd) && errno == EBADF) |
751 | fd_kill (EV_A_ fd); |
1018 | fd_kill (EV_A_ fd); |
752 | } |
1019 | } |
753 | |
1020 | |
754 | /* 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 */ |
755 | static void noinline |
1022 | static void noinline |
… | |
… | |
759 | |
1026 | |
760 | for (fd = anfdmax; fd--; ) |
1027 | for (fd = anfdmax; fd--; ) |
761 | if (anfds [fd].events) |
1028 | if (anfds [fd].events) |
762 | { |
1029 | { |
763 | fd_kill (EV_A_ fd); |
1030 | fd_kill (EV_A_ fd); |
764 | return; |
1031 | break; |
765 | } |
1032 | } |
766 | } |
1033 | } |
767 | |
1034 | |
768 | /* 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 */ |
769 | static void noinline |
1036 | static void noinline |
… | |
… | |
773 | |
1040 | |
774 | for (fd = 0; fd < anfdmax; ++fd) |
1041 | for (fd = 0; fd < anfdmax; ++fd) |
775 | if (anfds [fd].events) |
1042 | if (anfds [fd].events) |
776 | { |
1043 | { |
777 | anfds [fd].events = 0; |
1044 | anfds [fd].events = 0; |
|
|
1045 | anfds [fd].emask = 0; |
778 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1046 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
779 | } |
1047 | } |
|
|
1048 | } |
|
|
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 |
780 | } |
1062 | } |
781 | |
1063 | |
782 | /*****************************************************************************/ |
1064 | /*****************************************************************************/ |
783 | |
1065 | |
784 | /* |
1066 | /* |
… | |
… | |
791 | * at the moment we allow libev the luxury of two heaps, |
1073 | * at the moment we allow libev the luxury of two heaps, |
792 | * 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 |
793 | * which is more cache-efficient. |
1075 | * which is more cache-efficient. |
794 | * the difference is about 5% with 50000+ watchers. |
1076 | * the difference is about 5% with 50000+ watchers. |
795 | */ |
1077 | */ |
796 | #define EV_USE_4HEAP !EV_MINIMAL |
|
|
797 | #if EV_USE_4HEAP |
1078 | #if EV_USE_4HEAP |
798 | |
1079 | |
799 | #define DHEAP 4 |
1080 | #define DHEAP 4 |
800 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1081 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
801 | |
1082 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
802 | /* towards the root */ |
1083 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
803 | void inline_speed |
|
|
804 | upheap (ANHE *heap, int k) |
|
|
805 | { |
|
|
806 | ANHE he = heap [k]; |
|
|
807 | |
|
|
808 | for (;;) |
|
|
809 | { |
|
|
810 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
811 | |
|
|
812 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
813 | break; |
|
|
814 | |
|
|
815 | heap [k] = heap [p]; |
|
|
816 | ev_active (ANHE_w (heap [k])) = k; |
|
|
817 | k = p; |
|
|
818 | } |
|
|
819 | |
|
|
820 | ev_active (ANHE_w (he)) = k; |
|
|
821 | heap [k] = he; |
|
|
822 | } |
|
|
823 | |
1084 | |
824 | /* away from the root */ |
1085 | /* away from the root */ |
825 | void inline_speed |
1086 | inline_speed void |
826 | downheap (ANHE *heap, int N, int k) |
1087 | downheap (ANHE *heap, int N, int k) |
827 | { |
1088 | { |
828 | ANHE he = heap [k]; |
1089 | ANHE he = heap [k]; |
829 | ANHE *E = heap + N + HEAP0; |
1090 | ANHE *E = heap + N + HEAP0; |
830 | |
1091 | |
831 | for (;;) |
1092 | for (;;) |
832 | { |
1093 | { |
833 | ev_tstamp minat; |
1094 | ev_tstamp minat; |
834 | ANHE *minpos; |
1095 | ANHE *minpos; |
835 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
1096 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
836 | |
1097 | |
837 | // find minimum child |
1098 | /* find minimum child */ |
838 | if (expect_true (pos + DHEAP - 1 < E)) |
1099 | if (expect_true (pos + DHEAP - 1 < E)) |
839 | { |
1100 | { |
840 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1101 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
841 | if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1102 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
842 | if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1103 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
843 | if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1104 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
844 | } |
1105 | } |
845 | else if (pos < E) |
1106 | else if (pos < E) |
846 | { |
1107 | { |
847 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1108 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
848 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1109 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
… | |
… | |
853 | break; |
1114 | break; |
854 | |
1115 | |
855 | if (ANHE_at (he) <= minat) |
1116 | if (ANHE_at (he) <= minat) |
856 | break; |
1117 | break; |
857 | |
1118 | |
|
|
1119 | heap [k] = *minpos; |
858 | ev_active (ANHE_w (*minpos)) = k; |
1120 | ev_active (ANHE_w (*minpos)) = k; |
859 | heap [k] = *minpos; |
|
|
860 | |
1121 | |
861 | k = minpos - heap; |
1122 | k = minpos - heap; |
862 | } |
1123 | } |
863 | |
1124 | |
|
|
1125 | heap [k] = he; |
864 | ev_active (ANHE_w (he)) = k; |
1126 | ev_active (ANHE_w (he)) = k; |
865 | heap [k] = he; |
|
|
866 | } |
1127 | } |
867 | |
1128 | |
868 | #else // 4HEAP |
1129 | #else /* 4HEAP */ |
869 | |
1130 | |
870 | #define HEAP0 1 |
1131 | #define HEAP0 1 |
|
|
1132 | #define HPARENT(k) ((k) >> 1) |
|
|
1133 | #define UPHEAP_DONE(p,k) (!(p)) |
871 | |
1134 | |
872 | /* towards the root */ |
1135 | /* away from the root */ |
873 | void inline_speed |
1136 | inline_speed void |
874 | upheap (ANHE *heap, int k) |
1137 | downheap (ANHE *heap, int N, int k) |
875 | { |
1138 | { |
876 | ANHE he = heap [k]; |
1139 | ANHE he = heap [k]; |
877 | |
1140 | |
878 | for (;;) |
1141 | for (;;) |
879 | { |
1142 | { |
880 | int p = k >> 1; |
1143 | int c = k << 1; |
881 | |
1144 | |
882 | /* maybe we could use a dummy element at heap [0]? */ |
1145 | if (c >= N + HEAP0) |
883 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
884 | break; |
1146 | break; |
885 | |
1147 | |
886 | heap [k] = heap [p]; |
|
|
887 | ev_active (ANHE_w (heap [k])) = k; |
|
|
888 | k = p; |
|
|
889 | } |
|
|
890 | |
|
|
891 | heap [k] = w; |
|
|
892 | ev_active (ANHE_w (heap [k])) = k; |
|
|
893 | } |
|
|
894 | |
|
|
895 | /* away from the root */ |
|
|
896 | void inline_speed |
|
|
897 | downheap (ANHE *heap, int N, int k) |
|
|
898 | { |
|
|
899 | ANHE he = heap [k]; |
|
|
900 | |
|
|
901 | for (;;) |
|
|
902 | { |
|
|
903 | int c = k << 1; |
|
|
904 | |
|
|
905 | if (c > N) |
|
|
906 | break; |
|
|
907 | |
|
|
908 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1148 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
909 | ? 1 : 0; |
1149 | ? 1 : 0; |
910 | |
1150 | |
911 | if (w->at <= ANHE_at (heap [c])) |
1151 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
912 | break; |
1152 | break; |
913 | |
1153 | |
914 | heap [k] = heap [c]; |
1154 | heap [k] = heap [c]; |
915 | ev_active (ANHE_w (heap [k])) = k; |
1155 | ev_active (ANHE_w (heap [k])) = k; |
916 | |
1156 | |
… | |
… | |
920 | heap [k] = he; |
1160 | heap [k] = he; |
921 | ev_active (ANHE_w (he)) = k; |
1161 | ev_active (ANHE_w (he)) = k; |
922 | } |
1162 | } |
923 | #endif |
1163 | #endif |
924 | |
1164 | |
925 | void inline_size |
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]; |
|
|
1179 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1180 | k = p; |
|
|
1181 | } |
|
|
1182 | |
|
|
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 |
926 | adjustheap (ANHE *heap, int N, int k) |
1189 | adjustheap (ANHE *heap, int N, int k) |
927 | { |
1190 | { |
|
|
1191 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
928 | upheap (heap, k); |
1192 | upheap (heap, k); |
|
|
1193 | else |
929 | 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); |
930 | } |
1207 | } |
931 | |
1208 | |
932 | /*****************************************************************************/ |
1209 | /*****************************************************************************/ |
933 | |
1210 | |
|
|
1211 | /* associate signal watchers to a signal signal */ |
934 | typedef struct |
1212 | typedef struct |
935 | { |
1213 | { |
|
|
1214 | EV_ATOMIC_T pending; |
|
|
1215 | #if EV_MULTIPLICITY |
|
|
1216 | EV_P; |
|
|
1217 | #endif |
936 | WL head; |
1218 | WL head; |
937 | EV_ATOMIC_T gotsig; |
|
|
938 | } ANSIG; |
1219 | } ANSIG; |
939 | |
1220 | |
940 | static ANSIG *signals; |
1221 | static ANSIG signals [EV_NSIG - 1]; |
941 | static int signalmax; |
|
|
942 | |
|
|
943 | static EV_ATOMIC_T gotsig; |
|
|
944 | |
|
|
945 | void inline_size |
|
|
946 | signals_init (ANSIG *base, int count) |
|
|
947 | { |
|
|
948 | while (count--) |
|
|
949 | { |
|
|
950 | base->head = 0; |
|
|
951 | base->gotsig = 0; |
|
|
952 | |
|
|
953 | ++base; |
|
|
954 | } |
|
|
955 | } |
|
|
956 | |
1222 | |
957 | /*****************************************************************************/ |
1223 | /*****************************************************************************/ |
958 | |
1224 | |
959 | void inline_speed |
1225 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
960 | fd_intern (int fd) |
|
|
961 | { |
|
|
962 | #ifdef _WIN32 |
|
|
963 | int arg = 1; |
|
|
964 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
965 | #else |
|
|
966 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
967 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
968 | #endif |
|
|
969 | } |
|
|
970 | |
1226 | |
971 | static void noinline |
1227 | static void noinline |
972 | evpipe_init (EV_P) |
1228 | evpipe_init (EV_P) |
973 | { |
1229 | { |
974 | if (!ev_is_active (&pipeev)) |
1230 | if (!ev_is_active (&pipe_w)) |
975 | { |
1231 | { |
976 | #if EV_USE_EVENTFD |
1232 | # if EV_USE_EVENTFD |
|
|
1233 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1234 | if (evfd < 0 && errno == EINVAL) |
977 | if ((evfd = eventfd (0, 0)) >= 0) |
1235 | evfd = eventfd (0, 0); |
|
|
1236 | |
|
|
1237 | if (evfd >= 0) |
978 | { |
1238 | { |
979 | evpipe [0] = -1; |
1239 | evpipe [0] = -1; |
980 | fd_intern (evfd); |
1240 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
981 | ev_io_set (&pipeev, evfd, EV_READ); |
1241 | ev_io_set (&pipe_w, evfd, EV_READ); |
982 | } |
1242 | } |
983 | else |
1243 | else |
984 | #endif |
1244 | # endif |
985 | { |
1245 | { |
986 | while (pipe (evpipe)) |
1246 | while (pipe (evpipe)) |
987 | syserr ("(libev) error creating signal/async pipe"); |
1247 | ev_syserr ("(libev) error creating signal/async pipe"); |
988 | |
1248 | |
989 | fd_intern (evpipe [0]); |
1249 | fd_intern (evpipe [0]); |
990 | fd_intern (evpipe [1]); |
1250 | fd_intern (evpipe [1]); |
991 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1251 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
992 | } |
1252 | } |
993 | |
1253 | |
994 | ev_io_start (EV_A_ &pipeev); |
1254 | ev_io_start (EV_A_ &pipe_w); |
995 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1255 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
996 | } |
1256 | } |
997 | } |
1257 | } |
998 | |
1258 | |
999 | void inline_size |
1259 | inline_size void |
1000 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1260 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1001 | { |
1261 | { |
1002 | if (!*flag) |
1262 | if (!*flag) |
1003 | { |
1263 | { |
1004 | 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; |
1005 | |
1266 | |
1006 | *flag = 1; |
1267 | *flag = 1; |
1007 | |
1268 | |
1008 | #if EV_USE_EVENTFD |
1269 | #if EV_USE_EVENTFD |
1009 | if (evfd >= 0) |
1270 | if (evfd >= 0) |
… | |
… | |
1011 | uint64_t counter = 1; |
1272 | uint64_t counter = 1; |
1012 | write (evfd, &counter, sizeof (uint64_t)); |
1273 | write (evfd, &counter, sizeof (uint64_t)); |
1013 | } |
1274 | } |
1014 | else |
1275 | else |
1015 | #endif |
1276 | #endif |
1016 | write (evpipe [1], &old_errno, 1); |
1277 | write (evpipe [1], &dummy, 1); |
1017 | |
1278 | |
1018 | errno = old_errno; |
1279 | errno = old_errno; |
1019 | } |
1280 | } |
1020 | } |
1281 | } |
1021 | |
1282 | |
|
|
1283 | /* called whenever the libev signal pipe */ |
|
|
1284 | /* got some events (signal, async) */ |
1022 | static void |
1285 | static void |
1023 | pipecb (EV_P_ ev_io *iow, int revents) |
1286 | pipecb (EV_P_ ev_io *iow, int revents) |
1024 | { |
1287 | { |
|
|
1288 | int i; |
|
|
1289 | |
1025 | #if EV_USE_EVENTFD |
1290 | #if EV_USE_EVENTFD |
1026 | if (evfd >= 0) |
1291 | if (evfd >= 0) |
1027 | { |
1292 | { |
1028 | uint64_t counter; |
1293 | uint64_t counter; |
1029 | read (evfd, &counter, sizeof (uint64_t)); |
1294 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1033 | { |
1298 | { |
1034 | char dummy; |
1299 | char dummy; |
1035 | read (evpipe [0], &dummy, 1); |
1300 | read (evpipe [0], &dummy, 1); |
1036 | } |
1301 | } |
1037 | |
1302 | |
1038 | if (gotsig && ev_is_default_loop (EV_A)) |
1303 | if (sig_pending) |
1039 | { |
1304 | { |
1040 | int signum; |
1305 | sig_pending = 0; |
1041 | gotsig = 0; |
|
|
1042 | |
1306 | |
1043 | for (signum = signalmax; signum--; ) |
1307 | for (i = EV_NSIG - 1; i--; ) |
1044 | if (signals [signum].gotsig) |
1308 | if (expect_false (signals [i].pending)) |
1045 | ev_feed_signal_event (EV_A_ signum + 1); |
1309 | ev_feed_signal_event (EV_A_ i + 1); |
1046 | } |
1310 | } |
1047 | |
1311 | |
1048 | #if EV_ASYNC_ENABLE |
1312 | #if EV_ASYNC_ENABLE |
1049 | if (gotasync) |
1313 | if (async_pending) |
1050 | { |
1314 | { |
1051 | int i; |
1315 | async_pending = 0; |
1052 | gotasync = 0; |
|
|
1053 | |
1316 | |
1054 | for (i = asynccnt; i--; ) |
1317 | for (i = asynccnt; i--; ) |
1055 | if (asyncs [i]->sent) |
1318 | if (asyncs [i]->sent) |
1056 | { |
1319 | { |
1057 | asyncs [i]->sent = 0; |
1320 | asyncs [i]->sent = 0; |
… | |
… | |
1065 | |
1328 | |
1066 | static void |
1329 | static void |
1067 | ev_sighandler (int signum) |
1330 | ev_sighandler (int signum) |
1068 | { |
1331 | { |
1069 | #if EV_MULTIPLICITY |
1332 | #if EV_MULTIPLICITY |
1070 | struct ev_loop *loop = &default_loop_struct; |
1333 | EV_P = signals [signum - 1].loop; |
1071 | #endif |
1334 | #endif |
1072 | |
1335 | |
1073 | #if _WIN32 |
1336 | #ifdef _WIN32 |
1074 | signal (signum, ev_sighandler); |
1337 | signal (signum, ev_sighandler); |
1075 | #endif |
1338 | #endif |
1076 | |
1339 | |
1077 | signals [signum - 1].gotsig = 1; |
1340 | signals [signum - 1].pending = 1; |
1078 | evpipe_write (EV_A_ &gotsig); |
1341 | evpipe_write (EV_A_ &sig_pending); |
1079 | } |
1342 | } |
1080 | |
1343 | |
1081 | void noinline |
1344 | void noinline |
1082 | ev_feed_signal_event (EV_P_ int signum) |
1345 | ev_feed_signal_event (EV_P_ int signum) |
1083 | { |
1346 | { |
1084 | WL w; |
1347 | WL w; |
1085 | |
1348 | |
|
|
1349 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1350 | return; |
|
|
1351 | |
|
|
1352 | --signum; |
|
|
1353 | |
1086 | #if EV_MULTIPLICITY |
1354 | #if EV_MULTIPLICITY |
1087 | 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 */ |
1088 | #endif |
1356 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1089 | |
1357 | |
1090 | --signum; |
1358 | if (expect_false (signals [signum].loop != EV_A)) |
1091 | |
|
|
1092 | if (signum < 0 || signum >= signalmax) |
|
|
1093 | return; |
1359 | return; |
|
|
1360 | #endif |
1094 | |
1361 | |
1095 | signals [signum].gotsig = 0; |
1362 | signals [signum].pending = 0; |
1096 | |
1363 | |
1097 | for (w = signals [signum].head; w; w = w->next) |
1364 | for (w = signals [signum].head; w; w = w->next) |
1098 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1365 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1099 | } |
1366 | } |
1100 | |
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 | |
1101 | /*****************************************************************************/ |
1390 | /*****************************************************************************/ |
1102 | |
1391 | |
|
|
1392 | #if EV_CHILD_ENABLE |
1103 | static WL childs [EV_PID_HASHSIZE]; |
1393 | static WL childs [EV_PID_HASHSIZE]; |
1104 | |
|
|
1105 | #ifndef _WIN32 |
|
|
1106 | |
1394 | |
1107 | static ev_signal childev; |
1395 | static ev_signal childev; |
1108 | |
1396 | |
1109 | #ifndef WIFCONTINUED |
1397 | #ifndef WIFCONTINUED |
1110 | # define WIFCONTINUED(status) 0 |
1398 | # define WIFCONTINUED(status) 0 |
1111 | #endif |
1399 | #endif |
1112 | |
1400 | |
1113 | void inline_speed |
1401 | /* handle a single child status event */ |
|
|
1402 | inline_speed void |
1114 | child_reap (EV_P_ int chain, int pid, int status) |
1403 | child_reap (EV_P_ int chain, int pid, int status) |
1115 | { |
1404 | { |
1116 | ev_child *w; |
1405 | ev_child *w; |
1117 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1406 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1118 | |
1407 | |
… | |
… | |
1131 | |
1420 | |
1132 | #ifndef WCONTINUED |
1421 | #ifndef WCONTINUED |
1133 | # define WCONTINUED 0 |
1422 | # define WCONTINUED 0 |
1134 | #endif |
1423 | #endif |
1135 | |
1424 | |
|
|
1425 | /* called on sigchld etc., calls waitpid */ |
1136 | static void |
1426 | static void |
1137 | childcb (EV_P_ ev_signal *sw, int revents) |
1427 | childcb (EV_P_ ev_signal *sw, int revents) |
1138 | { |
1428 | { |
1139 | int pid, status; |
1429 | int pid, status; |
1140 | |
1430 | |
… | |
… | |
1221 | /* kqueue is borked on everything but netbsd apparently */ |
1511 | /* kqueue is borked on everything but netbsd apparently */ |
1222 | /* 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 */ |
1223 | flags &= ~EVBACKEND_KQUEUE; |
1513 | flags &= ~EVBACKEND_KQUEUE; |
1224 | #endif |
1514 | #endif |
1225 | #ifdef __APPLE__ |
1515 | #ifdef __APPLE__ |
1226 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1516 | /* only select works correctly on that "unix-certified" platform */ |
1227 | 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 */ |
1228 | #endif |
1519 | #endif |
1229 | |
1520 | |
1230 | return flags; |
1521 | return flags; |
1231 | } |
1522 | } |
1232 | |
1523 | |
… | |
… | |
1246 | ev_backend (EV_P) |
1537 | ev_backend (EV_P) |
1247 | { |
1538 | { |
1248 | return backend; |
1539 | return backend; |
1249 | } |
1540 | } |
1250 | |
1541 | |
|
|
1542 | #if EV_MINIMAL < 2 |
1251 | unsigned int |
1543 | unsigned int |
1252 | ev_loop_count (EV_P) |
1544 | ev_loop_count (EV_P) |
1253 | { |
1545 | { |
1254 | return loop_count; |
1546 | return loop_count; |
1255 | } |
1547 | } |
1256 | |
1548 | |
|
|
1549 | unsigned int |
|
|
1550 | ev_loop_depth (EV_P) |
|
|
1551 | { |
|
|
1552 | return loop_depth; |
|
|
1553 | } |
|
|
1554 | |
1257 | void |
1555 | void |
1258 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1556 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1259 | { |
1557 | { |
1260 | io_blocktime = interval; |
1558 | io_blocktime = interval; |
1261 | } |
1559 | } |
… | |
… | |
1264 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1562 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1265 | { |
1563 | { |
1266 | timeout_blocktime = interval; |
1564 | timeout_blocktime = interval; |
1267 | } |
1565 | } |
1268 | |
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 */ |
1269 | static void noinline |
1592 | static void noinline |
1270 | loop_init (EV_P_ unsigned int flags) |
1593 | loop_init (EV_P_ unsigned int flags) |
1271 | { |
1594 | { |
1272 | if (!backend) |
1595 | if (!backend) |
1273 | { |
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 | |
1274 | #if EV_USE_MONOTONIC |
1607 | #if EV_USE_MONOTONIC |
|
|
1608 | if (!have_monotonic) |
1275 | { |
1609 | { |
1276 | struct timespec ts; |
1610 | struct timespec ts; |
|
|
1611 | |
1277 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1612 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1278 | have_monotonic = 1; |
1613 | have_monotonic = 1; |
1279 | } |
1614 | } |
1280 | #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")); |
1281 | |
1627 | |
1282 | ev_rt_now = ev_time (); |
1628 | ev_rt_now = ev_time (); |
1283 | mn_now = get_clock (); |
1629 | mn_now = get_clock (); |
1284 | now_floor = mn_now; |
1630 | now_floor = mn_now; |
1285 | 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 |
1286 | |
1635 | |
1287 | io_blocktime = 0.; |
1636 | io_blocktime = 0.; |
1288 | timeout_blocktime = 0.; |
1637 | timeout_blocktime = 0.; |
1289 | backend = 0; |
1638 | backend = 0; |
1290 | backend_fd = -1; |
1639 | backend_fd = -1; |
1291 | gotasync = 0; |
1640 | sig_pending = 0; |
|
|
1641 | #if EV_ASYNC_ENABLE |
|
|
1642 | async_pending = 0; |
|
|
1643 | #endif |
1292 | #if EV_USE_INOTIFY |
1644 | #if EV_USE_INOTIFY |
1293 | fs_fd = -2; |
1645 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1294 | #endif |
1646 | #endif |
1295 | |
1647 | #if EV_USE_SIGNALFD |
1296 | /* pid check not overridable via env */ |
1648 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1297 | #ifndef _WIN32 |
|
|
1298 | if (flags & EVFLAG_FORKCHECK) |
|
|
1299 | curpid = getpid (); |
|
|
1300 | #endif |
1649 | #endif |
1301 | |
|
|
1302 | if (!(flags & EVFLAG_NOENV) |
|
|
1303 | && !enable_secure () |
|
|
1304 | && getenv ("LIBEV_FLAGS")) |
|
|
1305 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1306 | |
1650 | |
1307 | if (!(flags & 0x0000ffffU)) |
1651 | if (!(flags & 0x0000ffffU)) |
1308 | flags |= ev_recommended_backends (); |
1652 | flags |= ev_recommended_backends (); |
1309 | |
1653 | |
1310 | #if EV_USE_PORT |
1654 | #if EV_USE_PORT |
… | |
… | |
1321 | #endif |
1665 | #endif |
1322 | #if EV_USE_SELECT |
1666 | #if EV_USE_SELECT |
1323 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1667 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1324 | #endif |
1668 | #endif |
1325 | |
1669 | |
|
|
1670 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1671 | |
|
|
1672 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1326 | ev_init (&pipeev, pipecb); |
1673 | ev_init (&pipe_w, pipecb); |
1327 | ev_set_priority (&pipeev, EV_MAXPRI); |
1674 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1675 | #endif |
1328 | } |
1676 | } |
1329 | } |
1677 | } |
1330 | |
1678 | |
|
|
1679 | /* free up a loop structure */ |
1331 | static void noinline |
1680 | static void noinline |
1332 | loop_destroy (EV_P) |
1681 | loop_destroy (EV_P) |
1333 | { |
1682 | { |
1334 | int i; |
1683 | int i; |
1335 | |
1684 | |
1336 | if (ev_is_active (&pipeev)) |
1685 | if (ev_is_active (&pipe_w)) |
1337 | { |
1686 | { |
1338 | ev_ref (EV_A); /* signal watcher */ |
1687 | /*ev_ref (EV_A);*/ |
1339 | ev_io_stop (EV_A_ &pipeev); |
1688 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1340 | |
1689 | |
1341 | #if EV_USE_EVENTFD |
1690 | #if EV_USE_EVENTFD |
1342 | if (evfd >= 0) |
1691 | if (evfd >= 0) |
1343 | close (evfd); |
1692 | close (evfd); |
1344 | #endif |
1693 | #endif |
1345 | |
1694 | |
1346 | if (evpipe [0] >= 0) |
1695 | if (evpipe [0] >= 0) |
1347 | { |
1696 | { |
1348 | close (evpipe [0]); |
1697 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1349 | close (evpipe [1]); |
1698 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1350 | } |
1699 | } |
1351 | } |
1700 | } |
|
|
1701 | |
|
|
1702 | #if EV_USE_SIGNALFD |
|
|
1703 | if (ev_is_active (&sigfd_w)) |
|
|
1704 | close (sigfd); |
|
|
1705 | #endif |
1352 | |
1706 | |
1353 | #if EV_USE_INOTIFY |
1707 | #if EV_USE_INOTIFY |
1354 | if (fs_fd >= 0) |
1708 | if (fs_fd >= 0) |
1355 | close (fs_fd); |
1709 | close (fs_fd); |
1356 | #endif |
1710 | #endif |
… | |
… | |
1380 | #if EV_IDLE_ENABLE |
1734 | #if EV_IDLE_ENABLE |
1381 | array_free (idle, [i]); |
1735 | array_free (idle, [i]); |
1382 | #endif |
1736 | #endif |
1383 | } |
1737 | } |
1384 | |
1738 | |
1385 | ev_free (anfds); anfdmax = 0; |
1739 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1386 | |
1740 | |
1387 | /* 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); |
1388 | array_free (fdchange, EMPTY); |
1743 | array_free (fdchange, EMPTY); |
1389 | array_free (timer, EMPTY); |
1744 | array_free (timer, EMPTY); |
1390 | #if EV_PERIODIC_ENABLE |
1745 | #if EV_PERIODIC_ENABLE |
1391 | array_free (periodic, EMPTY); |
1746 | array_free (periodic, EMPTY); |
1392 | #endif |
1747 | #endif |
… | |
… | |
1401 | |
1756 | |
1402 | backend = 0; |
1757 | backend = 0; |
1403 | } |
1758 | } |
1404 | |
1759 | |
1405 | #if EV_USE_INOTIFY |
1760 | #if EV_USE_INOTIFY |
1406 | void inline_size infy_fork (EV_P); |
1761 | inline_size void infy_fork (EV_P); |
1407 | #endif |
1762 | #endif |
1408 | |
1763 | |
1409 | void inline_size |
1764 | inline_size void |
1410 | loop_fork (EV_P) |
1765 | loop_fork (EV_P) |
1411 | { |
1766 | { |
1412 | #if EV_USE_PORT |
1767 | #if EV_USE_PORT |
1413 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1768 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1414 | #endif |
1769 | #endif |
… | |
… | |
1420 | #endif |
1775 | #endif |
1421 | #if EV_USE_INOTIFY |
1776 | #if EV_USE_INOTIFY |
1422 | infy_fork (EV_A); |
1777 | infy_fork (EV_A); |
1423 | #endif |
1778 | #endif |
1424 | |
1779 | |
1425 | if (ev_is_active (&pipeev)) |
1780 | if (ev_is_active (&pipe_w)) |
1426 | { |
1781 | { |
1427 | /* this "locks" the handlers against writing to the pipe */ |
1782 | /* this "locks" the handlers against writing to the pipe */ |
1428 | /* while we modify the fd vars */ |
1783 | /* while we modify the fd vars */ |
1429 | gotsig = 1; |
1784 | sig_pending = 1; |
1430 | #if EV_ASYNC_ENABLE |
1785 | #if EV_ASYNC_ENABLE |
1431 | gotasync = 1; |
1786 | async_pending = 1; |
1432 | #endif |
1787 | #endif |
1433 | |
1788 | |
1434 | ev_ref (EV_A); |
1789 | ev_ref (EV_A); |
1435 | ev_io_stop (EV_A_ &pipeev); |
1790 | ev_io_stop (EV_A_ &pipe_w); |
1436 | |
1791 | |
1437 | #if EV_USE_EVENTFD |
1792 | #if EV_USE_EVENTFD |
1438 | if (evfd >= 0) |
1793 | if (evfd >= 0) |
1439 | close (evfd); |
1794 | close (evfd); |
1440 | #endif |
1795 | #endif |
1441 | |
1796 | |
1442 | if (evpipe [0] >= 0) |
1797 | if (evpipe [0] >= 0) |
1443 | { |
1798 | { |
1444 | close (evpipe [0]); |
1799 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1445 | close (evpipe [1]); |
1800 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1446 | } |
1801 | } |
1447 | |
1802 | |
|
|
1803 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1448 | evpipe_init (EV_A); |
1804 | evpipe_init (EV_A); |
1449 | /* now iterate over everything, in case we missed something */ |
1805 | /* now iterate over everything, in case we missed something */ |
1450 | pipecb (EV_A_ &pipeev, EV_READ); |
1806 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1807 | #endif |
1451 | } |
1808 | } |
1452 | |
1809 | |
1453 | postfork = 0; |
1810 | postfork = 0; |
1454 | } |
1811 | } |
1455 | |
1812 | |
1456 | #if EV_MULTIPLICITY |
1813 | #if EV_MULTIPLICITY |
|
|
1814 | |
1457 | struct ev_loop * |
1815 | struct ev_loop * |
1458 | ev_loop_new (unsigned int flags) |
1816 | ev_loop_new (unsigned int flags) |
1459 | { |
1817 | { |
1460 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1818 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1461 | |
1819 | |
1462 | memset (loop, 0, sizeof (struct ev_loop)); |
1820 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1463 | |
|
|
1464 | loop_init (EV_A_ flags); |
1821 | loop_init (EV_A_ flags); |
1465 | |
1822 | |
1466 | if (ev_backend (EV_A)) |
1823 | if (ev_backend (EV_A)) |
1467 | return loop; |
1824 | return EV_A; |
1468 | |
1825 | |
1469 | return 0; |
1826 | return 0; |
1470 | } |
1827 | } |
1471 | |
1828 | |
1472 | void |
1829 | void |
… | |
… | |
1478 | |
1835 | |
1479 | void |
1836 | void |
1480 | ev_loop_fork (EV_P) |
1837 | ev_loop_fork (EV_P) |
1481 | { |
1838 | { |
1482 | postfork = 1; /* must be in line with ev_default_fork */ |
1839 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1840 | } |
|
|
1841 | #endif /* multiplicity */ |
|
|
1842 | |
|
|
1843 | #if EV_VERIFY |
|
|
1844 | static void noinline |
|
|
1845 | verify_watcher (EV_P_ W w) |
|
|
1846 | { |
|
|
1847 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1848 | |
|
|
1849 | if (w->pending) |
|
|
1850 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1851 | } |
|
|
1852 | |
|
|
1853 | static void noinline |
|
|
1854 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1855 | { |
|
|
1856 | int i; |
|
|
1857 | |
|
|
1858 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1859 | { |
|
|
1860 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1861 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1862 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1863 | |
|
|
1864 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1865 | } |
|
|
1866 | } |
|
|
1867 | |
|
|
1868 | static void noinline |
|
|
1869 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1870 | { |
|
|
1871 | while (cnt--) |
|
|
1872 | { |
|
|
1873 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1874 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1875 | } |
|
|
1876 | } |
|
|
1877 | #endif |
|
|
1878 | |
|
|
1879 | #if EV_MINIMAL < 2 |
|
|
1880 | void |
|
|
1881 | ev_loop_verify (EV_P) |
|
|
1882 | { |
|
|
1883 | #if EV_VERIFY |
|
|
1884 | int i; |
|
|
1885 | WL w; |
|
|
1886 | |
|
|
1887 | assert (activecnt >= -1); |
|
|
1888 | |
|
|
1889 | assert (fdchangemax >= fdchangecnt); |
|
|
1890 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1891 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1892 | |
|
|
1893 | assert (anfdmax >= 0); |
|
|
1894 | for (i = 0; i < anfdmax; ++i) |
|
|
1895 | for (w = anfds [i].head; w; w = w->next) |
|
|
1896 | { |
|
|
1897 | verify_watcher (EV_A_ (W)w); |
|
|
1898 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1899 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | assert (timermax >= timercnt); |
|
|
1903 | verify_heap (EV_A_ timers, timercnt); |
|
|
1904 | |
|
|
1905 | #if EV_PERIODIC_ENABLE |
|
|
1906 | assert (periodicmax >= periodiccnt); |
|
|
1907 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1908 | #endif |
|
|
1909 | |
|
|
1910 | for (i = NUMPRI; i--; ) |
|
|
1911 | { |
|
|
1912 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1913 | #if EV_IDLE_ENABLE |
|
|
1914 | assert (idleall >= 0); |
|
|
1915 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1916 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1917 | #endif |
|
|
1918 | } |
|
|
1919 | |
|
|
1920 | #if EV_FORK_ENABLE |
|
|
1921 | assert (forkmax >= forkcnt); |
|
|
1922 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1923 | #endif |
|
|
1924 | |
|
|
1925 | #if EV_ASYNC_ENABLE |
|
|
1926 | assert (asyncmax >= asynccnt); |
|
|
1927 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1928 | #endif |
|
|
1929 | |
|
|
1930 | #if EV_PREPARE_ENABLE |
|
|
1931 | assert (preparemax >= preparecnt); |
|
|
1932 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1933 | #endif |
|
|
1934 | |
|
|
1935 | #if EV_CHECK_ENABLE |
|
|
1936 | assert (checkmax >= checkcnt); |
|
|
1937 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1938 | #endif |
|
|
1939 | |
|
|
1940 | # if 0 |
|
|
1941 | #if EV_CHILD_ENABLE |
|
|
1942 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1943 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1944 | #endif |
|
|
1945 | # endif |
|
|
1946 | #endif |
1483 | } |
1947 | } |
1484 | #endif |
1948 | #endif |
1485 | |
1949 | |
1486 | #if EV_MULTIPLICITY |
1950 | #if EV_MULTIPLICITY |
1487 | struct ev_loop * |
1951 | struct ev_loop * |
… | |
… | |
1492 | #endif |
1956 | #endif |
1493 | { |
1957 | { |
1494 | if (!ev_default_loop_ptr) |
1958 | if (!ev_default_loop_ptr) |
1495 | { |
1959 | { |
1496 | #if EV_MULTIPLICITY |
1960 | #if EV_MULTIPLICITY |
1497 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1961 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1498 | #else |
1962 | #else |
1499 | ev_default_loop_ptr = 1; |
1963 | ev_default_loop_ptr = 1; |
1500 | #endif |
1964 | #endif |
1501 | |
1965 | |
1502 | loop_init (EV_A_ flags); |
1966 | loop_init (EV_A_ flags); |
1503 | |
1967 | |
1504 | if (ev_backend (EV_A)) |
1968 | if (ev_backend (EV_A)) |
1505 | { |
1969 | { |
1506 | #ifndef _WIN32 |
1970 | #if EV_CHILD_ENABLE |
1507 | ev_signal_init (&childev, childcb, SIGCHLD); |
1971 | ev_signal_init (&childev, childcb, SIGCHLD); |
1508 | ev_set_priority (&childev, EV_MAXPRI); |
1972 | ev_set_priority (&childev, EV_MAXPRI); |
1509 | ev_signal_start (EV_A_ &childev); |
1973 | ev_signal_start (EV_A_ &childev); |
1510 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1974 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1511 | #endif |
1975 | #endif |
… | |
… | |
1519 | |
1983 | |
1520 | void |
1984 | void |
1521 | ev_default_destroy (void) |
1985 | ev_default_destroy (void) |
1522 | { |
1986 | { |
1523 | #if EV_MULTIPLICITY |
1987 | #if EV_MULTIPLICITY |
1524 | struct ev_loop *loop = ev_default_loop_ptr; |
1988 | EV_P = ev_default_loop_ptr; |
1525 | #endif |
1989 | #endif |
1526 | |
1990 | |
1527 | #ifndef _WIN32 |
1991 | ev_default_loop_ptr = 0; |
|
|
1992 | |
|
|
1993 | #if EV_CHILD_ENABLE |
1528 | ev_ref (EV_A); /* child watcher */ |
1994 | ev_ref (EV_A); /* child watcher */ |
1529 | ev_signal_stop (EV_A_ &childev); |
1995 | ev_signal_stop (EV_A_ &childev); |
1530 | #endif |
1996 | #endif |
1531 | |
1997 | |
1532 | loop_destroy (EV_A); |
1998 | loop_destroy (EV_A); |
… | |
… | |
1534 | |
2000 | |
1535 | void |
2001 | void |
1536 | ev_default_fork (void) |
2002 | ev_default_fork (void) |
1537 | { |
2003 | { |
1538 | #if EV_MULTIPLICITY |
2004 | #if EV_MULTIPLICITY |
1539 | struct ev_loop *loop = ev_default_loop_ptr; |
2005 | EV_P = ev_default_loop_ptr; |
1540 | #endif |
2006 | #endif |
1541 | |
2007 | |
1542 | if (backend) |
|
|
1543 | postfork = 1; /* must be in line with ev_loop_fork */ |
2008 | postfork = 1; /* must be in line with ev_loop_fork */ |
1544 | } |
2009 | } |
1545 | |
2010 | |
1546 | /*****************************************************************************/ |
2011 | /*****************************************************************************/ |
1547 | |
2012 | |
1548 | void |
2013 | void |
1549 | ev_invoke (EV_P_ void *w, int revents) |
2014 | ev_invoke (EV_P_ void *w, int revents) |
1550 | { |
2015 | { |
1551 | EV_CB_INVOKE ((W)w, revents); |
2016 | EV_CB_INVOKE ((W)w, revents); |
1552 | } |
2017 | } |
1553 | |
2018 | |
1554 | void inline_speed |
2019 | unsigned int |
1555 | call_pending (EV_P) |
2020 | ev_pending_count (EV_P) |
|
|
2021 | { |
|
|
2022 | int pri; |
|
|
2023 | unsigned int count = 0; |
|
|
2024 | |
|
|
2025 | for (pri = NUMPRI; pri--; ) |
|
|
2026 | count += pendingcnt [pri]; |
|
|
2027 | |
|
|
2028 | return count; |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | void noinline |
|
|
2032 | ev_invoke_pending (EV_P) |
1556 | { |
2033 | { |
1557 | int pri; |
2034 | int pri; |
1558 | |
2035 | |
1559 | for (pri = NUMPRI; pri--; ) |
2036 | for (pri = NUMPRI; pri--; ) |
1560 | while (pendingcnt [pri]) |
2037 | while (pendingcnt [pri]) |
1561 | { |
2038 | { |
1562 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2039 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1563 | |
2040 | |
1564 | if (expect_true (p->w)) |
|
|
1565 | { |
|
|
1566 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2041 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2042 | /* ^ this is no longer true, as pending_w could be here */ |
1567 | |
2043 | |
1568 | p->w->pending = 0; |
2044 | p->w->pending = 0; |
1569 | EV_CB_INVOKE (p->w, p->events); |
2045 | EV_CB_INVOKE (p->w, p->events); |
1570 | } |
2046 | EV_FREQUENT_CHECK; |
1571 | } |
2047 | } |
1572 | } |
2048 | } |
1573 | |
2049 | |
1574 | #if EV_IDLE_ENABLE |
2050 | #if EV_IDLE_ENABLE |
1575 | void inline_size |
2051 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2052 | /* only when higher priorities are idle" logic */ |
|
|
2053 | inline_size void |
1576 | idle_reify (EV_P) |
2054 | idle_reify (EV_P) |
1577 | { |
2055 | { |
1578 | if (expect_false (idleall)) |
2056 | if (expect_false (idleall)) |
1579 | { |
2057 | { |
1580 | int pri; |
2058 | int pri; |
… | |
… | |
1592 | } |
2070 | } |
1593 | } |
2071 | } |
1594 | } |
2072 | } |
1595 | #endif |
2073 | #endif |
1596 | |
2074 | |
1597 | void inline_size |
2075 | /* make timers pending */ |
|
|
2076 | inline_size void |
1598 | timers_reify (EV_P) |
2077 | timers_reify (EV_P) |
1599 | { |
2078 | { |
|
|
2079 | EV_FREQUENT_CHECK; |
|
|
2080 | |
1600 | while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now) |
2081 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1601 | { |
2082 | { |
1602 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2083 | do |
1603 | |
|
|
1604 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1605 | |
|
|
1606 | /* first reschedule or stop timer */ |
|
|
1607 | if (w->repeat) |
|
|
1608 | { |
2084 | { |
|
|
2085 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2086 | |
|
|
2087 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2088 | |
|
|
2089 | /* first reschedule or stop timer */ |
|
|
2090 | if (w->repeat) |
|
|
2091 | { |
|
|
2092 | ev_at (w) += w->repeat; |
|
|
2093 | if (ev_at (w) < mn_now) |
|
|
2094 | ev_at (w) = mn_now; |
|
|
2095 | |
1609 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2096 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1610 | |
2097 | |
1611 | ev_at (w) += w->repeat; |
|
|
1612 | if (ev_at (w) < mn_now) |
|
|
1613 | ev_at (w) = mn_now; |
|
|
1614 | |
|
|
1615 | ANHE_at_set (timers [HEAP0]); |
2098 | ANHE_at_cache (timers [HEAP0]); |
1616 | downheap (timers, timercnt, HEAP0); |
2099 | downheap (timers, timercnt, HEAP0); |
|
|
2100 | } |
|
|
2101 | else |
|
|
2102 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2103 | |
|
|
2104 | EV_FREQUENT_CHECK; |
|
|
2105 | feed_reverse (EV_A_ (W)w); |
1617 | } |
2106 | } |
1618 | else |
2107 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1619 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1620 | |
2108 | |
1621 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2109 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1622 | } |
2110 | } |
1623 | } |
2111 | } |
1624 | |
2112 | |
1625 | #if EV_PERIODIC_ENABLE |
2113 | #if EV_PERIODIC_ENABLE |
1626 | void inline_size |
2114 | /* make periodics pending */ |
|
|
2115 | inline_size void |
1627 | periodics_reify (EV_P) |
2116 | periodics_reify (EV_P) |
1628 | { |
2117 | { |
|
|
2118 | EV_FREQUENT_CHECK; |
|
|
2119 | |
1629 | while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now) |
2120 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1630 | { |
2121 | { |
1631 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2122 | int feed_count = 0; |
1632 | |
2123 | |
1633 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2124 | do |
1634 | |
|
|
1635 | /* first reschedule or stop timer */ |
|
|
1636 | if (w->reschedule_cb) |
|
|
1637 | { |
2125 | { |
|
|
2126 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2127 | |
|
|
2128 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2129 | |
|
|
2130 | /* first reschedule or stop timer */ |
|
|
2131 | if (w->reschedule_cb) |
|
|
2132 | { |
1638 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
2133 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2134 | |
1639 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
2135 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2136 | |
1640 | ANHE_at_set (periodics [HEAP0]); |
2137 | ANHE_at_cache (periodics [HEAP0]); |
1641 | downheap (periodics, periodiccnt, HEAP0); |
2138 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2139 | } |
|
|
2140 | else if (w->interval) |
|
|
2141 | { |
|
|
2142 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2143 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2144 | /* this might happen because of floating point inexactness */ |
|
|
2145 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2146 | { |
|
|
2147 | ev_at (w) += w->interval; |
|
|
2148 | |
|
|
2149 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2150 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2151 | /* has effectively asked to get triggered more often than possible */ |
|
|
2152 | if (ev_at (w) < ev_rt_now) |
|
|
2153 | ev_at (w) = ev_rt_now; |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2157 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2158 | } |
|
|
2159 | else |
|
|
2160 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2161 | |
|
|
2162 | EV_FREQUENT_CHECK; |
|
|
2163 | feed_reverse (EV_A_ (W)w); |
1642 | } |
2164 | } |
1643 | else if (w->interval) |
2165 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1644 | { |
|
|
1645 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1646 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1647 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1648 | ANHE_at_set (periodics [HEAP0]); |
|
|
1649 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1650 | } |
|
|
1651 | else |
|
|
1652 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1653 | |
2166 | |
1654 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2167 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1655 | } |
2168 | } |
1656 | } |
2169 | } |
1657 | |
2170 | |
|
|
2171 | /* simply recalculate all periodics */ |
|
|
2172 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1658 | static void noinline |
2173 | static void noinline |
1659 | periodics_reschedule (EV_P) |
2174 | periodics_reschedule (EV_P) |
1660 | { |
2175 | { |
1661 | int i; |
2176 | int i; |
1662 | |
2177 | |
… | |
… | |
1668 | if (w->reschedule_cb) |
2183 | if (w->reschedule_cb) |
1669 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2184 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1670 | else if (w->interval) |
2185 | else if (w->interval) |
1671 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2186 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1672 | |
2187 | |
1673 | ANHE_at_set (periodics [i]); |
2188 | ANHE_at_cache (periodics [i]); |
|
|
2189 | } |
|
|
2190 | |
|
|
2191 | reheap (periodics, periodiccnt); |
|
|
2192 | } |
|
|
2193 | #endif |
|
|
2194 | |
|
|
2195 | /* adjust all timers by a given offset */ |
|
|
2196 | static void noinline |
|
|
2197 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2198 | { |
|
|
2199 | int i; |
|
|
2200 | |
|
|
2201 | for (i = 0; i < timercnt; ++i) |
1674 | } |
2202 | { |
1675 | |
2203 | ANHE *he = timers + i + HEAP0; |
1676 | /* now rebuild the heap, this for the 2-heap, inefficient for the 4-heap, but correct */ |
2204 | ANHE_w (*he)->at += adjust; |
1677 | for (i = periodiccnt >> 1; --i; ) |
2205 | ANHE_at_cache (*he); |
1678 | downheap (periodics, periodiccnt, i + HEAP0); |
2206 | } |
1679 | } |
2207 | } |
1680 | #endif |
|
|
1681 | |
2208 | |
1682 | void inline_speed |
2209 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2210 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2211 | inline_speed void |
1683 | time_update (EV_P_ ev_tstamp max_block) |
2212 | time_update (EV_P_ ev_tstamp max_block) |
1684 | { |
2213 | { |
1685 | int i; |
|
|
1686 | |
|
|
1687 | #if EV_USE_MONOTONIC |
2214 | #if EV_USE_MONOTONIC |
1688 | if (expect_true (have_monotonic)) |
2215 | if (expect_true (have_monotonic)) |
1689 | { |
2216 | { |
|
|
2217 | int i; |
1690 | ev_tstamp odiff = rtmn_diff; |
2218 | ev_tstamp odiff = rtmn_diff; |
1691 | |
2219 | |
1692 | mn_now = get_clock (); |
2220 | mn_now = get_clock (); |
1693 | |
2221 | |
1694 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2222 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1720 | ev_rt_now = ev_time (); |
2248 | ev_rt_now = ev_time (); |
1721 | mn_now = get_clock (); |
2249 | mn_now = get_clock (); |
1722 | now_floor = mn_now; |
2250 | now_floor = mn_now; |
1723 | } |
2251 | } |
1724 | |
2252 | |
|
|
2253 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2254 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1725 | # if EV_PERIODIC_ENABLE |
2255 | # if EV_PERIODIC_ENABLE |
1726 | periodics_reschedule (EV_A); |
2256 | periodics_reschedule (EV_A); |
1727 | # endif |
2257 | # endif |
1728 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1729 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1730 | } |
2258 | } |
1731 | else |
2259 | else |
1732 | #endif |
2260 | #endif |
1733 | { |
2261 | { |
1734 | ev_rt_now = ev_time (); |
2262 | ev_rt_now = ev_time (); |
1735 | |
2263 | |
1736 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2264 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1737 | { |
2265 | { |
|
|
2266 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2267 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1738 | #if EV_PERIODIC_ENABLE |
2268 | #if EV_PERIODIC_ENABLE |
1739 | periodics_reschedule (EV_A); |
2269 | periodics_reschedule (EV_A); |
1740 | #endif |
2270 | #endif |
1741 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1742 | for (i = 0; i < timercnt; ++i) |
|
|
1743 | { |
|
|
1744 | ANHE *he = timers + i + HEAP0; |
|
|
1745 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1746 | ANHE_at_set (*he); |
|
|
1747 | } |
|
|
1748 | } |
2271 | } |
1749 | |
2272 | |
1750 | mn_now = ev_rt_now; |
2273 | mn_now = ev_rt_now; |
1751 | } |
2274 | } |
1752 | } |
2275 | } |
1753 | |
2276 | |
1754 | void |
2277 | void |
1755 | ev_ref (EV_P) |
|
|
1756 | { |
|
|
1757 | ++activecnt; |
|
|
1758 | } |
|
|
1759 | |
|
|
1760 | void |
|
|
1761 | ev_unref (EV_P) |
|
|
1762 | { |
|
|
1763 | --activecnt; |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | static int loop_done; |
|
|
1767 | |
|
|
1768 | void |
|
|
1769 | ev_loop (EV_P_ int flags) |
2278 | ev_loop (EV_P_ int flags) |
1770 | { |
2279 | { |
|
|
2280 | #if EV_MINIMAL < 2 |
|
|
2281 | ++loop_depth; |
|
|
2282 | #endif |
|
|
2283 | |
|
|
2284 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2285 | |
1771 | loop_done = EVUNLOOP_CANCEL; |
2286 | loop_done = EVUNLOOP_CANCEL; |
1772 | |
2287 | |
1773 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2288 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1774 | |
2289 | |
1775 | do |
2290 | do |
1776 | { |
2291 | { |
|
|
2292 | #if EV_VERIFY >= 2 |
|
|
2293 | ev_loop_verify (EV_A); |
|
|
2294 | #endif |
|
|
2295 | |
1777 | #ifndef _WIN32 |
2296 | #ifndef _WIN32 |
1778 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2297 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1779 | if (expect_false (getpid () != curpid)) |
2298 | if (expect_false (getpid () != curpid)) |
1780 | { |
2299 | { |
1781 | curpid = getpid (); |
2300 | curpid = getpid (); |
… | |
… | |
1787 | /* we might have forked, so queue fork handlers */ |
2306 | /* we might have forked, so queue fork handlers */ |
1788 | if (expect_false (postfork)) |
2307 | if (expect_false (postfork)) |
1789 | if (forkcnt) |
2308 | if (forkcnt) |
1790 | { |
2309 | { |
1791 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2310 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1792 | call_pending (EV_A); |
2311 | EV_INVOKE_PENDING; |
1793 | } |
2312 | } |
1794 | #endif |
2313 | #endif |
1795 | |
2314 | |
|
|
2315 | #if EV_PREPARE_ENABLE |
1796 | /* queue prepare watchers (and execute them) */ |
2316 | /* queue prepare watchers (and execute them) */ |
1797 | if (expect_false (preparecnt)) |
2317 | if (expect_false (preparecnt)) |
1798 | { |
2318 | { |
1799 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2319 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1800 | call_pending (EV_A); |
2320 | EV_INVOKE_PENDING; |
1801 | } |
2321 | } |
|
|
2322 | #endif |
1802 | |
2323 | |
1803 | if (expect_false (!activecnt)) |
2324 | if (expect_false (loop_done)) |
1804 | break; |
2325 | break; |
1805 | |
2326 | |
1806 | /* we might have forked, so reify kernel state if necessary */ |
2327 | /* we might have forked, so reify kernel state if necessary */ |
1807 | if (expect_false (postfork)) |
2328 | if (expect_false (postfork)) |
1808 | loop_fork (EV_A); |
2329 | loop_fork (EV_A); |
… | |
… | |
1815 | ev_tstamp waittime = 0.; |
2336 | ev_tstamp waittime = 0.; |
1816 | ev_tstamp sleeptime = 0.; |
2337 | ev_tstamp sleeptime = 0.; |
1817 | |
2338 | |
1818 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2339 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1819 | { |
2340 | { |
|
|
2341 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2342 | ev_tstamp prev_mn_now = mn_now; |
|
|
2343 | |
1820 | /* update time to cancel out callback processing overhead */ |
2344 | /* update time to cancel out callback processing overhead */ |
1821 | time_update (EV_A_ 1e100); |
2345 | time_update (EV_A_ 1e100); |
1822 | |
2346 | |
1823 | waittime = MAX_BLOCKTIME; |
2347 | waittime = MAX_BLOCKTIME; |
1824 | |
2348 | |
… | |
… | |
1834 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2358 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1835 | if (waittime > to) waittime = to; |
2359 | if (waittime > to) waittime = to; |
1836 | } |
2360 | } |
1837 | #endif |
2361 | #endif |
1838 | |
2362 | |
|
|
2363 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1839 | if (expect_false (waittime < timeout_blocktime)) |
2364 | if (expect_false (waittime < timeout_blocktime)) |
1840 | waittime = timeout_blocktime; |
2365 | waittime = timeout_blocktime; |
1841 | |
2366 | |
1842 | sleeptime = waittime - backend_fudge; |
2367 | /* extra check because io_blocktime is commonly 0 */ |
1843 | |
|
|
1844 | if (expect_true (sleeptime > io_blocktime)) |
2368 | if (expect_false (io_blocktime)) |
1845 | sleeptime = io_blocktime; |
|
|
1846 | |
|
|
1847 | if (sleeptime) |
|
|
1848 | { |
2369 | { |
|
|
2370 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2371 | |
|
|
2372 | if (sleeptime > waittime - backend_fudge) |
|
|
2373 | sleeptime = waittime - backend_fudge; |
|
|
2374 | |
|
|
2375 | if (expect_true (sleeptime > 0.)) |
|
|
2376 | { |
1849 | ev_sleep (sleeptime); |
2377 | ev_sleep (sleeptime); |
1850 | waittime -= sleeptime; |
2378 | waittime -= sleeptime; |
|
|
2379 | } |
1851 | } |
2380 | } |
1852 | } |
2381 | } |
1853 | |
2382 | |
|
|
2383 | #if EV_MINIMAL < 2 |
1854 | ++loop_count; |
2384 | ++loop_count; |
|
|
2385 | #endif |
|
|
2386 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1855 | backend_poll (EV_A_ waittime); |
2387 | backend_poll (EV_A_ waittime); |
|
|
2388 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1856 | |
2389 | |
1857 | /* update ev_rt_now, do magic */ |
2390 | /* update ev_rt_now, do magic */ |
1858 | time_update (EV_A_ waittime + sleeptime); |
2391 | time_update (EV_A_ waittime + sleeptime); |
1859 | } |
2392 | } |
1860 | |
2393 | |
… | |
… | |
1867 | #if EV_IDLE_ENABLE |
2400 | #if EV_IDLE_ENABLE |
1868 | /* queue idle watchers unless other events are pending */ |
2401 | /* queue idle watchers unless other events are pending */ |
1869 | idle_reify (EV_A); |
2402 | idle_reify (EV_A); |
1870 | #endif |
2403 | #endif |
1871 | |
2404 | |
|
|
2405 | #if EV_CHECK_ENABLE |
1872 | /* queue check watchers, to be executed first */ |
2406 | /* queue check watchers, to be executed first */ |
1873 | if (expect_false (checkcnt)) |
2407 | if (expect_false (checkcnt)) |
1874 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2408 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2409 | #endif |
1875 | |
2410 | |
1876 | call_pending (EV_A); |
2411 | EV_INVOKE_PENDING; |
1877 | } |
2412 | } |
1878 | while (expect_true ( |
2413 | while (expect_true ( |
1879 | activecnt |
2414 | activecnt |
1880 | && !loop_done |
2415 | && !loop_done |
1881 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2416 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1882 | )); |
2417 | )); |
1883 | |
2418 | |
1884 | if (loop_done == EVUNLOOP_ONE) |
2419 | if (loop_done == EVUNLOOP_ONE) |
1885 | loop_done = EVUNLOOP_CANCEL; |
2420 | loop_done = EVUNLOOP_CANCEL; |
|
|
2421 | |
|
|
2422 | #if EV_MINIMAL < 2 |
|
|
2423 | --loop_depth; |
|
|
2424 | #endif |
1886 | } |
2425 | } |
1887 | |
2426 | |
1888 | void |
2427 | void |
1889 | ev_unloop (EV_P_ int how) |
2428 | ev_unloop (EV_P_ int how) |
1890 | { |
2429 | { |
1891 | loop_done = how; |
2430 | loop_done = how; |
1892 | } |
2431 | } |
1893 | |
2432 | |
|
|
2433 | void |
|
|
2434 | ev_ref (EV_P) |
|
|
2435 | { |
|
|
2436 | ++activecnt; |
|
|
2437 | } |
|
|
2438 | |
|
|
2439 | void |
|
|
2440 | ev_unref (EV_P) |
|
|
2441 | { |
|
|
2442 | --activecnt; |
|
|
2443 | } |
|
|
2444 | |
|
|
2445 | void |
|
|
2446 | ev_now_update (EV_P) |
|
|
2447 | { |
|
|
2448 | time_update (EV_A_ 1e100); |
|
|
2449 | } |
|
|
2450 | |
|
|
2451 | void |
|
|
2452 | ev_suspend (EV_P) |
|
|
2453 | { |
|
|
2454 | ev_now_update (EV_A); |
|
|
2455 | } |
|
|
2456 | |
|
|
2457 | void |
|
|
2458 | ev_resume (EV_P) |
|
|
2459 | { |
|
|
2460 | ev_tstamp mn_prev = mn_now; |
|
|
2461 | |
|
|
2462 | ev_now_update (EV_A); |
|
|
2463 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2464 | #if EV_PERIODIC_ENABLE |
|
|
2465 | /* TODO: really do this? */ |
|
|
2466 | periodics_reschedule (EV_A); |
|
|
2467 | #endif |
|
|
2468 | } |
|
|
2469 | |
1894 | /*****************************************************************************/ |
2470 | /*****************************************************************************/ |
|
|
2471 | /* singly-linked list management, used when the expected list length is short */ |
1895 | |
2472 | |
1896 | void inline_size |
2473 | inline_size void |
1897 | wlist_add (WL *head, WL elem) |
2474 | wlist_add (WL *head, WL elem) |
1898 | { |
2475 | { |
1899 | elem->next = *head; |
2476 | elem->next = *head; |
1900 | *head = elem; |
2477 | *head = elem; |
1901 | } |
2478 | } |
1902 | |
2479 | |
1903 | void inline_size |
2480 | inline_size void |
1904 | wlist_del (WL *head, WL elem) |
2481 | wlist_del (WL *head, WL elem) |
1905 | { |
2482 | { |
1906 | while (*head) |
2483 | while (*head) |
1907 | { |
2484 | { |
1908 | if (*head == elem) |
2485 | if (expect_true (*head == elem)) |
1909 | { |
2486 | { |
1910 | *head = elem->next; |
2487 | *head = elem->next; |
1911 | return; |
2488 | break; |
1912 | } |
2489 | } |
1913 | |
2490 | |
1914 | head = &(*head)->next; |
2491 | head = &(*head)->next; |
1915 | } |
2492 | } |
1916 | } |
2493 | } |
1917 | |
2494 | |
1918 | void inline_speed |
2495 | /* internal, faster, version of ev_clear_pending */ |
|
|
2496 | inline_speed void |
1919 | clear_pending (EV_P_ W w) |
2497 | clear_pending (EV_P_ W w) |
1920 | { |
2498 | { |
1921 | if (w->pending) |
2499 | if (w->pending) |
1922 | { |
2500 | { |
1923 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2501 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1924 | w->pending = 0; |
2502 | w->pending = 0; |
1925 | } |
2503 | } |
1926 | } |
2504 | } |
1927 | |
2505 | |
1928 | int |
2506 | int |
… | |
… | |
1932 | int pending = w_->pending; |
2510 | int pending = w_->pending; |
1933 | |
2511 | |
1934 | if (expect_true (pending)) |
2512 | if (expect_true (pending)) |
1935 | { |
2513 | { |
1936 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2514 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2515 | p->w = (W)&pending_w; |
1937 | w_->pending = 0; |
2516 | w_->pending = 0; |
1938 | p->w = 0; |
|
|
1939 | return p->events; |
2517 | return p->events; |
1940 | } |
2518 | } |
1941 | else |
2519 | else |
1942 | return 0; |
2520 | return 0; |
1943 | } |
2521 | } |
1944 | |
2522 | |
1945 | void inline_size |
2523 | inline_size void |
1946 | pri_adjust (EV_P_ W w) |
2524 | pri_adjust (EV_P_ W w) |
1947 | { |
2525 | { |
1948 | int pri = w->priority; |
2526 | int pri = ev_priority (w); |
1949 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2527 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1950 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2528 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1951 | w->priority = pri; |
2529 | ev_set_priority (w, pri); |
1952 | } |
2530 | } |
1953 | |
2531 | |
1954 | void inline_speed |
2532 | inline_speed void |
1955 | ev_start (EV_P_ W w, int active) |
2533 | ev_start (EV_P_ W w, int active) |
1956 | { |
2534 | { |
1957 | pri_adjust (EV_A_ w); |
2535 | pri_adjust (EV_A_ w); |
1958 | w->active = active; |
2536 | w->active = active; |
1959 | ev_ref (EV_A); |
2537 | ev_ref (EV_A); |
1960 | } |
2538 | } |
1961 | |
2539 | |
1962 | void inline_size |
2540 | inline_size void |
1963 | ev_stop (EV_P_ W w) |
2541 | ev_stop (EV_P_ W w) |
1964 | { |
2542 | { |
1965 | ev_unref (EV_A); |
2543 | ev_unref (EV_A); |
1966 | w->active = 0; |
2544 | w->active = 0; |
1967 | } |
2545 | } |
… | |
… | |
1974 | int fd = w->fd; |
2552 | int fd = w->fd; |
1975 | |
2553 | |
1976 | if (expect_false (ev_is_active (w))) |
2554 | if (expect_false (ev_is_active (w))) |
1977 | return; |
2555 | return; |
1978 | |
2556 | |
1979 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2557 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2558 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2559 | |
|
|
2560 | EV_FREQUENT_CHECK; |
1980 | |
2561 | |
1981 | ev_start (EV_A_ (W)w, 1); |
2562 | ev_start (EV_A_ (W)w, 1); |
1982 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2563 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1983 | wlist_add (&anfds[fd].head, (WL)w); |
2564 | wlist_add (&anfds[fd].head, (WL)w); |
1984 | |
2565 | |
1985 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2566 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1986 | w->events &= ~EV_IOFDSET; |
2567 | w->events &= ~EV__IOFDSET; |
|
|
2568 | |
|
|
2569 | EV_FREQUENT_CHECK; |
1987 | } |
2570 | } |
1988 | |
2571 | |
1989 | void noinline |
2572 | void noinline |
1990 | ev_io_stop (EV_P_ ev_io *w) |
2573 | ev_io_stop (EV_P_ ev_io *w) |
1991 | { |
2574 | { |
1992 | clear_pending (EV_A_ (W)w); |
2575 | clear_pending (EV_A_ (W)w); |
1993 | if (expect_false (!ev_is_active (w))) |
2576 | if (expect_false (!ev_is_active (w))) |
1994 | return; |
2577 | return; |
1995 | |
2578 | |
1996 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2579 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2580 | |
|
|
2581 | EV_FREQUENT_CHECK; |
1997 | |
2582 | |
1998 | wlist_del (&anfds[w->fd].head, (WL)w); |
2583 | wlist_del (&anfds[w->fd].head, (WL)w); |
1999 | ev_stop (EV_A_ (W)w); |
2584 | ev_stop (EV_A_ (W)w); |
2000 | |
2585 | |
2001 | fd_change (EV_A_ w->fd, 1); |
2586 | fd_change (EV_A_ w->fd, 1); |
|
|
2587 | |
|
|
2588 | EV_FREQUENT_CHECK; |
2002 | } |
2589 | } |
2003 | |
2590 | |
2004 | void noinline |
2591 | void noinline |
2005 | ev_timer_start (EV_P_ ev_timer *w) |
2592 | ev_timer_start (EV_P_ ev_timer *w) |
2006 | { |
2593 | { |
2007 | if (expect_false (ev_is_active (w))) |
2594 | if (expect_false (ev_is_active (w))) |
2008 | return; |
2595 | return; |
2009 | |
2596 | |
2010 | ev_at (w) += mn_now; |
2597 | ev_at (w) += mn_now; |
2011 | |
2598 | |
2012 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2599 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2013 | |
2600 | |
|
|
2601 | EV_FREQUENT_CHECK; |
|
|
2602 | |
|
|
2603 | ++timercnt; |
2014 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
2604 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2015 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
2605 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
2016 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2606 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2017 | ANHE_at_set (timers [ev_active (w)]); |
2607 | ANHE_at_cache (timers [ev_active (w)]); |
2018 | upheap (timers, ev_active (w)); |
2608 | upheap (timers, ev_active (w)); |
2019 | |
2609 | |
|
|
2610 | EV_FREQUENT_CHECK; |
|
|
2611 | |
2020 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2612 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2021 | } |
2613 | } |
2022 | |
2614 | |
2023 | void noinline |
2615 | void noinline |
2024 | ev_timer_stop (EV_P_ ev_timer *w) |
2616 | ev_timer_stop (EV_P_ ev_timer *w) |
2025 | { |
2617 | { |
2026 | clear_pending (EV_A_ (W)w); |
2618 | clear_pending (EV_A_ (W)w); |
2027 | if (expect_false (!ev_is_active (w))) |
2619 | if (expect_false (!ev_is_active (w))) |
2028 | return; |
2620 | return; |
2029 | |
2621 | |
|
|
2622 | EV_FREQUENT_CHECK; |
|
|
2623 | |
2030 | { |
2624 | { |
2031 | int active = ev_active (w); |
2625 | int active = ev_active (w); |
2032 | |
2626 | |
2033 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2627 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2034 | |
2628 | |
|
|
2629 | --timercnt; |
|
|
2630 | |
2035 | if (expect_true (active < timercnt + HEAP0 - 1)) |
2631 | if (expect_true (active < timercnt + HEAP0)) |
2036 | { |
2632 | { |
2037 | timers [active] = timers [timercnt + HEAP0 - 1]; |
2633 | timers [active] = timers [timercnt + HEAP0]; |
2038 | adjustheap (timers, timercnt, active); |
2634 | adjustheap (timers, timercnt, active); |
2039 | } |
2635 | } |
2040 | |
|
|
2041 | --timercnt; |
|
|
2042 | } |
2636 | } |
2043 | |
2637 | |
2044 | ev_at (w) -= mn_now; |
2638 | ev_at (w) -= mn_now; |
2045 | |
2639 | |
2046 | ev_stop (EV_A_ (W)w); |
2640 | ev_stop (EV_A_ (W)w); |
|
|
2641 | |
|
|
2642 | EV_FREQUENT_CHECK; |
2047 | } |
2643 | } |
2048 | |
2644 | |
2049 | void noinline |
2645 | void noinline |
2050 | ev_timer_again (EV_P_ ev_timer *w) |
2646 | ev_timer_again (EV_P_ ev_timer *w) |
2051 | { |
2647 | { |
|
|
2648 | EV_FREQUENT_CHECK; |
|
|
2649 | |
2052 | if (ev_is_active (w)) |
2650 | if (ev_is_active (w)) |
2053 | { |
2651 | { |
2054 | if (w->repeat) |
2652 | if (w->repeat) |
2055 | { |
2653 | { |
2056 | ev_at (w) = mn_now + w->repeat; |
2654 | ev_at (w) = mn_now + w->repeat; |
2057 | ANHE_at_set (timers [ev_active (w)]); |
2655 | ANHE_at_cache (timers [ev_active (w)]); |
2058 | adjustheap (timers, timercnt, ev_active (w)); |
2656 | adjustheap (timers, timercnt, ev_active (w)); |
2059 | } |
2657 | } |
2060 | else |
2658 | else |
2061 | ev_timer_stop (EV_A_ w); |
2659 | ev_timer_stop (EV_A_ w); |
2062 | } |
2660 | } |
2063 | else if (w->repeat) |
2661 | else if (w->repeat) |
2064 | { |
2662 | { |
2065 | ev_at (w) = w->repeat; |
2663 | ev_at (w) = w->repeat; |
2066 | ev_timer_start (EV_A_ w); |
2664 | ev_timer_start (EV_A_ w); |
2067 | } |
2665 | } |
|
|
2666 | |
|
|
2667 | EV_FREQUENT_CHECK; |
|
|
2668 | } |
|
|
2669 | |
|
|
2670 | ev_tstamp |
|
|
2671 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2672 | { |
|
|
2673 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2068 | } |
2674 | } |
2069 | |
2675 | |
2070 | #if EV_PERIODIC_ENABLE |
2676 | #if EV_PERIODIC_ENABLE |
2071 | void noinline |
2677 | void noinline |
2072 | ev_periodic_start (EV_P_ ev_periodic *w) |
2678 | ev_periodic_start (EV_P_ ev_periodic *w) |
… | |
… | |
2076 | |
2682 | |
2077 | if (w->reschedule_cb) |
2683 | if (w->reschedule_cb) |
2078 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2684 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2079 | else if (w->interval) |
2685 | else if (w->interval) |
2080 | { |
2686 | { |
2081 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2687 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2082 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2688 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2083 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2689 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2084 | } |
2690 | } |
2085 | else |
2691 | else |
2086 | ev_at (w) = w->offset; |
2692 | ev_at (w) = w->offset; |
2087 | |
2693 | |
|
|
2694 | EV_FREQUENT_CHECK; |
|
|
2695 | |
|
|
2696 | ++periodiccnt; |
2088 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
2697 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2089 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2698 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2090 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2699 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
|
|
2700 | ANHE_at_cache (periodics [ev_active (w)]); |
2091 | upheap (periodics, ev_active (w)); |
2701 | upheap (periodics, ev_active (w)); |
2092 | |
2702 | |
|
|
2703 | EV_FREQUENT_CHECK; |
|
|
2704 | |
2093 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2705 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2094 | } |
2706 | } |
2095 | |
2707 | |
2096 | void noinline |
2708 | void noinline |
2097 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2709 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2098 | { |
2710 | { |
2099 | clear_pending (EV_A_ (W)w); |
2711 | clear_pending (EV_A_ (W)w); |
2100 | if (expect_false (!ev_is_active (w))) |
2712 | if (expect_false (!ev_is_active (w))) |
2101 | return; |
2713 | return; |
2102 | |
2714 | |
|
|
2715 | EV_FREQUENT_CHECK; |
|
|
2716 | |
2103 | { |
2717 | { |
2104 | int active = ev_active (w); |
2718 | int active = ev_active (w); |
2105 | |
2719 | |
2106 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2720 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2107 | |
2721 | |
|
|
2722 | --periodiccnt; |
|
|
2723 | |
2108 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
2724 | if (expect_true (active < periodiccnt + HEAP0)) |
2109 | { |
2725 | { |
2110 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
2726 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2111 | adjustheap (periodics, periodiccnt, active); |
2727 | adjustheap (periodics, periodiccnt, active); |
2112 | } |
2728 | } |
2113 | |
|
|
2114 | --periodiccnt; |
|
|
2115 | } |
2729 | } |
2116 | |
2730 | |
2117 | ev_stop (EV_A_ (W)w); |
2731 | ev_stop (EV_A_ (W)w); |
|
|
2732 | |
|
|
2733 | EV_FREQUENT_CHECK; |
2118 | } |
2734 | } |
2119 | |
2735 | |
2120 | void noinline |
2736 | void noinline |
2121 | ev_periodic_again (EV_P_ ev_periodic *w) |
2737 | ev_periodic_again (EV_P_ ev_periodic *w) |
2122 | { |
2738 | { |
… | |
… | |
2128 | |
2744 | |
2129 | #ifndef SA_RESTART |
2745 | #ifndef SA_RESTART |
2130 | # define SA_RESTART 0 |
2746 | # define SA_RESTART 0 |
2131 | #endif |
2747 | #endif |
2132 | |
2748 | |
|
|
2749 | #if EV_SIGNAL_ENABLE |
|
|
2750 | |
2133 | void noinline |
2751 | void noinline |
2134 | ev_signal_start (EV_P_ ev_signal *w) |
2752 | ev_signal_start (EV_P_ ev_signal *w) |
2135 | { |
2753 | { |
2136 | #if EV_MULTIPLICITY |
|
|
2137 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2138 | #endif |
|
|
2139 | if (expect_false (ev_is_active (w))) |
2754 | if (expect_false (ev_is_active (w))) |
2140 | return; |
2755 | return; |
2141 | |
2756 | |
2142 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2757 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2143 | |
2758 | |
2144 | evpipe_init (EV_A); |
2759 | #if EV_MULTIPLICITY |
|
|
2760 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2761 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2145 | |
2762 | |
|
|
2763 | signals [w->signum - 1].loop = EV_A; |
|
|
2764 | #endif |
|
|
2765 | |
|
|
2766 | EV_FREQUENT_CHECK; |
|
|
2767 | |
|
|
2768 | #if EV_USE_SIGNALFD |
|
|
2769 | if (sigfd == -2) |
2146 | { |
2770 | { |
2147 | #ifndef _WIN32 |
2771 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2148 | sigset_t full, prev; |
2772 | if (sigfd < 0 && errno == EINVAL) |
2149 | sigfillset (&full); |
2773 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2150 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2151 | #endif |
|
|
2152 | |
2774 | |
2153 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2775 | if (sigfd >= 0) |
|
|
2776 | { |
|
|
2777 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2154 | |
2778 | |
2155 | #ifndef _WIN32 |
2779 | sigemptyset (&sigfd_set); |
2156 | sigprocmask (SIG_SETMASK, &prev, 0); |
2780 | |
2157 | #endif |
2781 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2782 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2783 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2784 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2785 | } |
2158 | } |
2786 | } |
|
|
2787 | |
|
|
2788 | if (sigfd >= 0) |
|
|
2789 | { |
|
|
2790 | /* TODO: check .head */ |
|
|
2791 | sigaddset (&sigfd_set, w->signum); |
|
|
2792 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2793 | |
|
|
2794 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2795 | } |
|
|
2796 | #endif |
2159 | |
2797 | |
2160 | ev_start (EV_A_ (W)w, 1); |
2798 | ev_start (EV_A_ (W)w, 1); |
2161 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2799 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2162 | |
2800 | |
2163 | if (!((WL)w)->next) |
2801 | if (!((WL)w)->next) |
|
|
2802 | # if EV_USE_SIGNALFD |
|
|
2803 | if (sigfd < 0) /*TODO*/ |
|
|
2804 | # endif |
2164 | { |
2805 | { |
2165 | #if _WIN32 |
2806 | # ifdef _WIN32 |
|
|
2807 | evpipe_init (EV_A); |
|
|
2808 | |
2166 | signal (w->signum, ev_sighandler); |
2809 | signal (w->signum, ev_sighandler); |
2167 | #else |
2810 | # else |
2168 | struct sigaction sa; |
2811 | struct sigaction sa; |
|
|
2812 | |
|
|
2813 | evpipe_init (EV_A); |
|
|
2814 | |
2169 | sa.sa_handler = ev_sighandler; |
2815 | sa.sa_handler = ev_sighandler; |
2170 | sigfillset (&sa.sa_mask); |
2816 | sigfillset (&sa.sa_mask); |
2171 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2817 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2172 | sigaction (w->signum, &sa, 0); |
2818 | sigaction (w->signum, &sa, 0); |
|
|
2819 | |
|
|
2820 | sigemptyset (&sa.sa_mask); |
|
|
2821 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2822 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2173 | #endif |
2823 | #endif |
2174 | } |
2824 | } |
|
|
2825 | |
|
|
2826 | EV_FREQUENT_CHECK; |
2175 | } |
2827 | } |
2176 | |
2828 | |
2177 | void noinline |
2829 | void noinline |
2178 | ev_signal_stop (EV_P_ ev_signal *w) |
2830 | ev_signal_stop (EV_P_ ev_signal *w) |
2179 | { |
2831 | { |
2180 | clear_pending (EV_A_ (W)w); |
2832 | clear_pending (EV_A_ (W)w); |
2181 | if (expect_false (!ev_is_active (w))) |
2833 | if (expect_false (!ev_is_active (w))) |
2182 | return; |
2834 | return; |
2183 | |
2835 | |
|
|
2836 | EV_FREQUENT_CHECK; |
|
|
2837 | |
2184 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2838 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2185 | ev_stop (EV_A_ (W)w); |
2839 | ev_stop (EV_A_ (W)w); |
2186 | |
2840 | |
2187 | if (!signals [w->signum - 1].head) |
2841 | if (!signals [w->signum - 1].head) |
|
|
2842 | { |
|
|
2843 | #if EV_MULTIPLICITY |
|
|
2844 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2845 | #endif |
|
|
2846 | #if EV_USE_SIGNALFD |
|
|
2847 | if (sigfd >= 0) |
|
|
2848 | { |
|
|
2849 | sigset_t ss; |
|
|
2850 | |
|
|
2851 | sigemptyset (&ss); |
|
|
2852 | sigaddset (&ss, w->signum); |
|
|
2853 | sigdelset (&sigfd_set, w->signum); |
|
|
2854 | |
|
|
2855 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2856 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2857 | } |
|
|
2858 | else |
|
|
2859 | #endif |
2188 | signal (w->signum, SIG_DFL); |
2860 | signal (w->signum, SIG_DFL); |
|
|
2861 | } |
|
|
2862 | |
|
|
2863 | EV_FREQUENT_CHECK; |
2189 | } |
2864 | } |
|
|
2865 | |
|
|
2866 | #endif |
|
|
2867 | |
|
|
2868 | #if EV_CHILD_ENABLE |
2190 | |
2869 | |
2191 | void |
2870 | void |
2192 | ev_child_start (EV_P_ ev_child *w) |
2871 | ev_child_start (EV_P_ ev_child *w) |
2193 | { |
2872 | { |
2194 | #if EV_MULTIPLICITY |
2873 | #if EV_MULTIPLICITY |
2195 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2874 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2196 | #endif |
2875 | #endif |
2197 | if (expect_false (ev_is_active (w))) |
2876 | if (expect_false (ev_is_active (w))) |
2198 | return; |
2877 | return; |
2199 | |
2878 | |
|
|
2879 | EV_FREQUENT_CHECK; |
|
|
2880 | |
2200 | ev_start (EV_A_ (W)w, 1); |
2881 | ev_start (EV_A_ (W)w, 1); |
2201 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2882 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2883 | |
|
|
2884 | EV_FREQUENT_CHECK; |
2202 | } |
2885 | } |
2203 | |
2886 | |
2204 | void |
2887 | void |
2205 | ev_child_stop (EV_P_ ev_child *w) |
2888 | ev_child_stop (EV_P_ ev_child *w) |
2206 | { |
2889 | { |
2207 | clear_pending (EV_A_ (W)w); |
2890 | clear_pending (EV_A_ (W)w); |
2208 | if (expect_false (!ev_is_active (w))) |
2891 | if (expect_false (!ev_is_active (w))) |
2209 | return; |
2892 | return; |
2210 | |
2893 | |
|
|
2894 | EV_FREQUENT_CHECK; |
|
|
2895 | |
2211 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2896 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2212 | ev_stop (EV_A_ (W)w); |
2897 | ev_stop (EV_A_ (W)w); |
|
|
2898 | |
|
|
2899 | EV_FREQUENT_CHECK; |
2213 | } |
2900 | } |
|
|
2901 | |
|
|
2902 | #endif |
2214 | |
2903 | |
2215 | #if EV_STAT_ENABLE |
2904 | #if EV_STAT_ENABLE |
2216 | |
2905 | |
2217 | # ifdef _WIN32 |
2906 | # ifdef _WIN32 |
2218 | # undef lstat |
2907 | # undef lstat |
2219 | # define lstat(a,b) _stati64 (a,b) |
2908 | # define lstat(a,b) _stati64 (a,b) |
2220 | # endif |
2909 | # endif |
2221 | |
2910 | |
2222 | #define DEF_STAT_INTERVAL 5.0074891 |
2911 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2912 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2223 | #define MIN_STAT_INTERVAL 0.1074891 |
2913 | #define MIN_STAT_INTERVAL 0.1074891 |
2224 | |
2914 | |
2225 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2915 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2226 | |
2916 | |
2227 | #if EV_USE_INOTIFY |
2917 | #if EV_USE_INOTIFY |
2228 | # define EV_INOTIFY_BUFSIZE 8192 |
2918 | |
|
|
2919 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2920 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2229 | |
2921 | |
2230 | static void noinline |
2922 | static void noinline |
2231 | infy_add (EV_P_ ev_stat *w) |
2923 | infy_add (EV_P_ ev_stat *w) |
2232 | { |
2924 | { |
2233 | 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); |
2925 | 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); |
2234 | |
2926 | |
2235 | if (w->wd < 0) |
2927 | if (w->wd >= 0) |
|
|
2928 | { |
|
|
2929 | struct statfs sfs; |
|
|
2930 | |
|
|
2931 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2932 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2933 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2934 | |
|
|
2935 | if (!fs_2625) |
|
|
2936 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2937 | else if (!statfs (w->path, &sfs) |
|
|
2938 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2939 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2940 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2941 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2942 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2943 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2944 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2945 | else |
|
|
2946 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2236 | { |
2947 | } |
2237 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2948 | else |
|
|
2949 | { |
|
|
2950 | /* can't use inotify, continue to stat */ |
|
|
2951 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2238 | |
2952 | |
2239 | /* monitor some parent directory for speedup hints */ |
2953 | /* if path is not there, monitor some parent directory for speedup hints */ |
2240 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2954 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2241 | /* but an efficiency issue only */ |
2955 | /* but an efficiency issue only */ |
2242 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2956 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2243 | { |
2957 | { |
2244 | char path [4096]; |
2958 | char path [4096]; |
2245 | strcpy (path, w->path); |
2959 | strcpy (path, w->path); |
… | |
… | |
2249 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2963 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2250 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2964 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2251 | |
2965 | |
2252 | char *pend = strrchr (path, '/'); |
2966 | char *pend = strrchr (path, '/'); |
2253 | |
2967 | |
2254 | if (!pend) |
2968 | if (!pend || pend == path) |
2255 | break; /* whoops, no '/', complain to your admin */ |
2969 | break; |
2256 | |
2970 | |
2257 | *pend = 0; |
2971 | *pend = 0; |
2258 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2972 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2259 | } |
2973 | } |
2260 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2974 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2261 | } |
2975 | } |
2262 | } |
2976 | } |
2263 | else |
|
|
2264 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2265 | |
2977 | |
2266 | if (w->wd >= 0) |
2978 | if (w->wd >= 0) |
2267 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2979 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2980 | |
|
|
2981 | /* now re-arm timer, if required */ |
|
|
2982 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2983 | ev_timer_again (EV_A_ &w->timer); |
|
|
2984 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2268 | } |
2985 | } |
2269 | |
2986 | |
2270 | static void noinline |
2987 | static void noinline |
2271 | infy_del (EV_P_ ev_stat *w) |
2988 | infy_del (EV_P_ ev_stat *w) |
2272 | { |
2989 | { |
… | |
… | |
2286 | |
3003 | |
2287 | static void noinline |
3004 | static void noinline |
2288 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3005 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2289 | { |
3006 | { |
2290 | if (slot < 0) |
3007 | if (slot < 0) |
2291 | /* overflow, need to check for all hahs slots */ |
3008 | /* overflow, need to check for all hash slots */ |
2292 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3009 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2293 | infy_wd (EV_A_ slot, wd, ev); |
3010 | infy_wd (EV_A_ slot, wd, ev); |
2294 | else |
3011 | else |
2295 | { |
3012 | { |
2296 | WL w_; |
3013 | WL w_; |
… | |
… | |
2302 | |
3019 | |
2303 | if (w->wd == wd || wd == -1) |
3020 | if (w->wd == wd || wd == -1) |
2304 | { |
3021 | { |
2305 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3022 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2306 | { |
3023 | { |
|
|
3024 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2307 | w->wd = -1; |
3025 | w->wd = -1; |
2308 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3026 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2309 | } |
3027 | } |
2310 | |
3028 | |
2311 | stat_timer_cb (EV_A_ &w->timer, 0); |
3029 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2316 | |
3034 | |
2317 | static void |
3035 | static void |
2318 | infy_cb (EV_P_ ev_io *w, int revents) |
3036 | infy_cb (EV_P_ ev_io *w, int revents) |
2319 | { |
3037 | { |
2320 | char buf [EV_INOTIFY_BUFSIZE]; |
3038 | char buf [EV_INOTIFY_BUFSIZE]; |
2321 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2322 | int ofs; |
3039 | int ofs; |
2323 | int len = read (fs_fd, buf, sizeof (buf)); |
3040 | int len = read (fs_fd, buf, sizeof (buf)); |
2324 | |
3041 | |
2325 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3042 | for (ofs = 0; ofs < len; ) |
|
|
3043 | { |
|
|
3044 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2326 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3045 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3046 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3047 | } |
2327 | } |
3048 | } |
2328 | |
3049 | |
2329 | void inline_size |
3050 | inline_size unsigned int |
|
|
3051 | ev_linux_version (void) |
|
|
3052 | { |
|
|
3053 | struct utsname buf; |
|
|
3054 | unsigned int v; |
|
|
3055 | int i; |
|
|
3056 | char *p = buf.release; |
|
|
3057 | |
|
|
3058 | if (uname (&buf)) |
|
|
3059 | return 0; |
|
|
3060 | |
|
|
3061 | for (i = 3+1; --i; ) |
|
|
3062 | { |
|
|
3063 | unsigned int c = 0; |
|
|
3064 | |
|
|
3065 | for (;;) |
|
|
3066 | { |
|
|
3067 | if (*p >= '0' && *p <= '9') |
|
|
3068 | c = c * 10 + *p++ - '0'; |
|
|
3069 | else |
|
|
3070 | { |
|
|
3071 | p += *p == '.'; |
|
|
3072 | break; |
|
|
3073 | } |
|
|
3074 | } |
|
|
3075 | |
|
|
3076 | v = (v << 8) | c; |
|
|
3077 | } |
|
|
3078 | |
|
|
3079 | return v; |
|
|
3080 | } |
|
|
3081 | |
|
|
3082 | inline_size void |
|
|
3083 | ev_check_2625 (EV_P) |
|
|
3084 | { |
|
|
3085 | /* kernels < 2.6.25 are borked |
|
|
3086 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3087 | */ |
|
|
3088 | if (ev_linux_version () < 0x020619) |
|
|
3089 | return; |
|
|
3090 | |
|
|
3091 | fs_2625 = 1; |
|
|
3092 | } |
|
|
3093 | |
|
|
3094 | inline_size int |
|
|
3095 | infy_newfd (void) |
|
|
3096 | { |
|
|
3097 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3098 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3099 | if (fd >= 0) |
|
|
3100 | return fd; |
|
|
3101 | #endif |
|
|
3102 | return inotify_init (); |
|
|
3103 | } |
|
|
3104 | |
|
|
3105 | inline_size void |
2330 | infy_init (EV_P) |
3106 | infy_init (EV_P) |
2331 | { |
3107 | { |
2332 | if (fs_fd != -2) |
3108 | if (fs_fd != -2) |
2333 | return; |
3109 | return; |
2334 | |
3110 | |
|
|
3111 | fs_fd = -1; |
|
|
3112 | |
|
|
3113 | ev_check_2625 (EV_A); |
|
|
3114 | |
2335 | fs_fd = inotify_init (); |
3115 | fs_fd = infy_newfd (); |
2336 | |
3116 | |
2337 | if (fs_fd >= 0) |
3117 | if (fs_fd >= 0) |
2338 | { |
3118 | { |
|
|
3119 | fd_intern (fs_fd); |
2339 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3120 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2340 | ev_set_priority (&fs_w, EV_MAXPRI); |
3121 | ev_set_priority (&fs_w, EV_MAXPRI); |
2341 | ev_io_start (EV_A_ &fs_w); |
3122 | ev_io_start (EV_A_ &fs_w); |
|
|
3123 | ev_unref (EV_A); |
2342 | } |
3124 | } |
2343 | } |
3125 | } |
2344 | |
3126 | |
2345 | void inline_size |
3127 | inline_size void |
2346 | infy_fork (EV_P) |
3128 | infy_fork (EV_P) |
2347 | { |
3129 | { |
2348 | int slot; |
3130 | int slot; |
2349 | |
3131 | |
2350 | if (fs_fd < 0) |
3132 | if (fs_fd < 0) |
2351 | return; |
3133 | return; |
2352 | |
3134 | |
|
|
3135 | ev_ref (EV_A); |
|
|
3136 | ev_io_stop (EV_A_ &fs_w); |
2353 | close (fs_fd); |
3137 | close (fs_fd); |
2354 | fs_fd = inotify_init (); |
3138 | fs_fd = infy_newfd (); |
|
|
3139 | |
|
|
3140 | if (fs_fd >= 0) |
|
|
3141 | { |
|
|
3142 | fd_intern (fs_fd); |
|
|
3143 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3144 | ev_io_start (EV_A_ &fs_w); |
|
|
3145 | ev_unref (EV_A); |
|
|
3146 | } |
2355 | |
3147 | |
2356 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3148 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2357 | { |
3149 | { |
2358 | WL w_ = fs_hash [slot].head; |
3150 | WL w_ = fs_hash [slot].head; |
2359 | fs_hash [slot].head = 0; |
3151 | fs_hash [slot].head = 0; |
… | |
… | |
2366 | w->wd = -1; |
3158 | w->wd = -1; |
2367 | |
3159 | |
2368 | if (fs_fd >= 0) |
3160 | if (fs_fd >= 0) |
2369 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3161 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2370 | else |
3162 | else |
|
|
3163 | { |
|
|
3164 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3165 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2371 | ev_timer_start (EV_A_ &w->timer); |
3166 | ev_timer_again (EV_A_ &w->timer); |
|
|
3167 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3168 | } |
2372 | } |
3169 | } |
2373 | |
|
|
2374 | } |
3170 | } |
2375 | } |
3171 | } |
2376 | |
3172 | |
|
|
3173 | #endif |
|
|
3174 | |
|
|
3175 | #ifdef _WIN32 |
|
|
3176 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3177 | #else |
|
|
3178 | # define EV_LSTAT(p,b) lstat (p, b) |
2377 | #endif |
3179 | #endif |
2378 | |
3180 | |
2379 | void |
3181 | void |
2380 | ev_stat_stat (EV_P_ ev_stat *w) |
3182 | ev_stat_stat (EV_P_ ev_stat *w) |
2381 | { |
3183 | { |
… | |
… | |
2388 | static void noinline |
3190 | static void noinline |
2389 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3191 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2390 | { |
3192 | { |
2391 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3193 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2392 | |
3194 | |
2393 | /* we copy this here each the time so that */ |
3195 | ev_statdata prev = w->attr; |
2394 | /* prev has the old value when the callback gets invoked */ |
|
|
2395 | w->prev = w->attr; |
|
|
2396 | ev_stat_stat (EV_A_ w); |
3196 | ev_stat_stat (EV_A_ w); |
2397 | |
3197 | |
2398 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3198 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2399 | if ( |
3199 | if ( |
2400 | w->prev.st_dev != w->attr.st_dev |
3200 | prev.st_dev != w->attr.st_dev |
2401 | || w->prev.st_ino != w->attr.st_ino |
3201 | || prev.st_ino != w->attr.st_ino |
2402 | || w->prev.st_mode != w->attr.st_mode |
3202 | || prev.st_mode != w->attr.st_mode |
2403 | || w->prev.st_nlink != w->attr.st_nlink |
3203 | || prev.st_nlink != w->attr.st_nlink |
2404 | || w->prev.st_uid != w->attr.st_uid |
3204 | || prev.st_uid != w->attr.st_uid |
2405 | || w->prev.st_gid != w->attr.st_gid |
3205 | || prev.st_gid != w->attr.st_gid |
2406 | || w->prev.st_rdev != w->attr.st_rdev |
3206 | || prev.st_rdev != w->attr.st_rdev |
2407 | || w->prev.st_size != w->attr.st_size |
3207 | || prev.st_size != w->attr.st_size |
2408 | || w->prev.st_atime != w->attr.st_atime |
3208 | || prev.st_atime != w->attr.st_atime |
2409 | || w->prev.st_mtime != w->attr.st_mtime |
3209 | || prev.st_mtime != w->attr.st_mtime |
2410 | || w->prev.st_ctime != w->attr.st_ctime |
3210 | || prev.st_ctime != w->attr.st_ctime |
2411 | ) { |
3211 | ) { |
|
|
3212 | /* we only update w->prev on actual differences */ |
|
|
3213 | /* in case we test more often than invoke the callback, */ |
|
|
3214 | /* to ensure that prev is always different to attr */ |
|
|
3215 | w->prev = prev; |
|
|
3216 | |
2412 | #if EV_USE_INOTIFY |
3217 | #if EV_USE_INOTIFY |
|
|
3218 | if (fs_fd >= 0) |
|
|
3219 | { |
2413 | infy_del (EV_A_ w); |
3220 | infy_del (EV_A_ w); |
2414 | infy_add (EV_A_ w); |
3221 | infy_add (EV_A_ w); |
2415 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3222 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3223 | } |
2416 | #endif |
3224 | #endif |
2417 | |
3225 | |
2418 | ev_feed_event (EV_A_ w, EV_STAT); |
3226 | ev_feed_event (EV_A_ w, EV_STAT); |
2419 | } |
3227 | } |
2420 | } |
3228 | } |
… | |
… | |
2423 | ev_stat_start (EV_P_ ev_stat *w) |
3231 | ev_stat_start (EV_P_ ev_stat *w) |
2424 | { |
3232 | { |
2425 | if (expect_false (ev_is_active (w))) |
3233 | if (expect_false (ev_is_active (w))) |
2426 | return; |
3234 | return; |
2427 | |
3235 | |
2428 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2429 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2430 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2431 | |
|
|
2432 | ev_stat_stat (EV_A_ w); |
3236 | ev_stat_stat (EV_A_ w); |
2433 | |
3237 | |
|
|
3238 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2434 | if (w->interval < MIN_STAT_INTERVAL) |
3239 | w->interval = MIN_STAT_INTERVAL; |
2435 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2436 | |
3240 | |
2437 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3241 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2438 | ev_set_priority (&w->timer, ev_priority (w)); |
3242 | ev_set_priority (&w->timer, ev_priority (w)); |
2439 | |
3243 | |
2440 | #if EV_USE_INOTIFY |
3244 | #if EV_USE_INOTIFY |
2441 | infy_init (EV_A); |
3245 | infy_init (EV_A); |
2442 | |
3246 | |
2443 | if (fs_fd >= 0) |
3247 | if (fs_fd >= 0) |
2444 | infy_add (EV_A_ w); |
3248 | infy_add (EV_A_ w); |
2445 | else |
3249 | else |
2446 | #endif |
3250 | #endif |
|
|
3251 | { |
2447 | ev_timer_start (EV_A_ &w->timer); |
3252 | ev_timer_again (EV_A_ &w->timer); |
|
|
3253 | ev_unref (EV_A); |
|
|
3254 | } |
2448 | |
3255 | |
2449 | ev_start (EV_A_ (W)w, 1); |
3256 | ev_start (EV_A_ (W)w, 1); |
|
|
3257 | |
|
|
3258 | EV_FREQUENT_CHECK; |
2450 | } |
3259 | } |
2451 | |
3260 | |
2452 | void |
3261 | void |
2453 | ev_stat_stop (EV_P_ ev_stat *w) |
3262 | ev_stat_stop (EV_P_ ev_stat *w) |
2454 | { |
3263 | { |
2455 | clear_pending (EV_A_ (W)w); |
3264 | clear_pending (EV_A_ (W)w); |
2456 | if (expect_false (!ev_is_active (w))) |
3265 | if (expect_false (!ev_is_active (w))) |
2457 | return; |
3266 | return; |
2458 | |
3267 | |
|
|
3268 | EV_FREQUENT_CHECK; |
|
|
3269 | |
2459 | #if EV_USE_INOTIFY |
3270 | #if EV_USE_INOTIFY |
2460 | infy_del (EV_A_ w); |
3271 | infy_del (EV_A_ w); |
2461 | #endif |
3272 | #endif |
|
|
3273 | |
|
|
3274 | if (ev_is_active (&w->timer)) |
|
|
3275 | { |
|
|
3276 | ev_ref (EV_A); |
2462 | ev_timer_stop (EV_A_ &w->timer); |
3277 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3278 | } |
2463 | |
3279 | |
2464 | ev_stop (EV_A_ (W)w); |
3280 | ev_stop (EV_A_ (W)w); |
|
|
3281 | |
|
|
3282 | EV_FREQUENT_CHECK; |
2465 | } |
3283 | } |
2466 | #endif |
3284 | #endif |
2467 | |
3285 | |
2468 | #if EV_IDLE_ENABLE |
3286 | #if EV_IDLE_ENABLE |
2469 | void |
3287 | void |
… | |
… | |
2471 | { |
3289 | { |
2472 | if (expect_false (ev_is_active (w))) |
3290 | if (expect_false (ev_is_active (w))) |
2473 | return; |
3291 | return; |
2474 | |
3292 | |
2475 | pri_adjust (EV_A_ (W)w); |
3293 | pri_adjust (EV_A_ (W)w); |
|
|
3294 | |
|
|
3295 | EV_FREQUENT_CHECK; |
2476 | |
3296 | |
2477 | { |
3297 | { |
2478 | int active = ++idlecnt [ABSPRI (w)]; |
3298 | int active = ++idlecnt [ABSPRI (w)]; |
2479 | |
3299 | |
2480 | ++idleall; |
3300 | ++idleall; |
2481 | ev_start (EV_A_ (W)w, active); |
3301 | ev_start (EV_A_ (W)w, active); |
2482 | |
3302 | |
2483 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3303 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2484 | idles [ABSPRI (w)][active - 1] = w; |
3304 | idles [ABSPRI (w)][active - 1] = w; |
2485 | } |
3305 | } |
|
|
3306 | |
|
|
3307 | EV_FREQUENT_CHECK; |
2486 | } |
3308 | } |
2487 | |
3309 | |
2488 | void |
3310 | void |
2489 | ev_idle_stop (EV_P_ ev_idle *w) |
3311 | ev_idle_stop (EV_P_ ev_idle *w) |
2490 | { |
3312 | { |
2491 | clear_pending (EV_A_ (W)w); |
3313 | clear_pending (EV_A_ (W)w); |
2492 | if (expect_false (!ev_is_active (w))) |
3314 | if (expect_false (!ev_is_active (w))) |
2493 | return; |
3315 | return; |
2494 | |
3316 | |
|
|
3317 | EV_FREQUENT_CHECK; |
|
|
3318 | |
2495 | { |
3319 | { |
2496 | int active = ev_active (w); |
3320 | int active = ev_active (w); |
2497 | |
3321 | |
2498 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3322 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2499 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
3323 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2500 | |
3324 | |
2501 | ev_stop (EV_A_ (W)w); |
3325 | ev_stop (EV_A_ (W)w); |
2502 | --idleall; |
3326 | --idleall; |
2503 | } |
3327 | } |
2504 | } |
|
|
2505 | #endif |
|
|
2506 | |
3328 | |
|
|
3329 | EV_FREQUENT_CHECK; |
|
|
3330 | } |
|
|
3331 | #endif |
|
|
3332 | |
|
|
3333 | #if EV_PREPARE_ENABLE |
2507 | void |
3334 | void |
2508 | ev_prepare_start (EV_P_ ev_prepare *w) |
3335 | ev_prepare_start (EV_P_ ev_prepare *w) |
2509 | { |
3336 | { |
2510 | if (expect_false (ev_is_active (w))) |
3337 | if (expect_false (ev_is_active (w))) |
2511 | return; |
3338 | return; |
|
|
3339 | |
|
|
3340 | EV_FREQUENT_CHECK; |
2512 | |
3341 | |
2513 | ev_start (EV_A_ (W)w, ++preparecnt); |
3342 | ev_start (EV_A_ (W)w, ++preparecnt); |
2514 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3343 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2515 | prepares [preparecnt - 1] = w; |
3344 | prepares [preparecnt - 1] = w; |
|
|
3345 | |
|
|
3346 | EV_FREQUENT_CHECK; |
2516 | } |
3347 | } |
2517 | |
3348 | |
2518 | void |
3349 | void |
2519 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3350 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2520 | { |
3351 | { |
2521 | clear_pending (EV_A_ (W)w); |
3352 | clear_pending (EV_A_ (W)w); |
2522 | if (expect_false (!ev_is_active (w))) |
3353 | if (expect_false (!ev_is_active (w))) |
2523 | return; |
3354 | return; |
2524 | |
3355 | |
|
|
3356 | EV_FREQUENT_CHECK; |
|
|
3357 | |
2525 | { |
3358 | { |
2526 | int active = ev_active (w); |
3359 | int active = ev_active (w); |
2527 | |
3360 | |
2528 | prepares [active - 1] = prepares [--preparecnt]; |
3361 | prepares [active - 1] = prepares [--preparecnt]; |
2529 | ev_active (prepares [active - 1]) = active; |
3362 | ev_active (prepares [active - 1]) = active; |
2530 | } |
3363 | } |
2531 | |
3364 | |
2532 | ev_stop (EV_A_ (W)w); |
3365 | ev_stop (EV_A_ (W)w); |
2533 | } |
|
|
2534 | |
3366 | |
|
|
3367 | EV_FREQUENT_CHECK; |
|
|
3368 | } |
|
|
3369 | #endif |
|
|
3370 | |
|
|
3371 | #if EV_CHECK_ENABLE |
2535 | void |
3372 | void |
2536 | ev_check_start (EV_P_ ev_check *w) |
3373 | ev_check_start (EV_P_ ev_check *w) |
2537 | { |
3374 | { |
2538 | if (expect_false (ev_is_active (w))) |
3375 | if (expect_false (ev_is_active (w))) |
2539 | return; |
3376 | return; |
|
|
3377 | |
|
|
3378 | EV_FREQUENT_CHECK; |
2540 | |
3379 | |
2541 | ev_start (EV_A_ (W)w, ++checkcnt); |
3380 | ev_start (EV_A_ (W)w, ++checkcnt); |
2542 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3381 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2543 | checks [checkcnt - 1] = w; |
3382 | checks [checkcnt - 1] = w; |
|
|
3383 | |
|
|
3384 | EV_FREQUENT_CHECK; |
2544 | } |
3385 | } |
2545 | |
3386 | |
2546 | void |
3387 | void |
2547 | ev_check_stop (EV_P_ ev_check *w) |
3388 | ev_check_stop (EV_P_ ev_check *w) |
2548 | { |
3389 | { |
2549 | clear_pending (EV_A_ (W)w); |
3390 | clear_pending (EV_A_ (W)w); |
2550 | if (expect_false (!ev_is_active (w))) |
3391 | if (expect_false (!ev_is_active (w))) |
2551 | return; |
3392 | return; |
2552 | |
3393 | |
|
|
3394 | EV_FREQUENT_CHECK; |
|
|
3395 | |
2553 | { |
3396 | { |
2554 | int active = ev_active (w); |
3397 | int active = ev_active (w); |
2555 | |
3398 | |
2556 | checks [active - 1] = checks [--checkcnt]; |
3399 | checks [active - 1] = checks [--checkcnt]; |
2557 | ev_active (checks [active - 1]) = active; |
3400 | ev_active (checks [active - 1]) = active; |
2558 | } |
3401 | } |
2559 | |
3402 | |
2560 | ev_stop (EV_A_ (W)w); |
3403 | ev_stop (EV_A_ (W)w); |
|
|
3404 | |
|
|
3405 | EV_FREQUENT_CHECK; |
2561 | } |
3406 | } |
|
|
3407 | #endif |
2562 | |
3408 | |
2563 | #if EV_EMBED_ENABLE |
3409 | #if EV_EMBED_ENABLE |
2564 | void noinline |
3410 | void noinline |
2565 | ev_embed_sweep (EV_P_ ev_embed *w) |
3411 | ev_embed_sweep (EV_P_ ev_embed *w) |
2566 | { |
3412 | { |
… | |
… | |
2582 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3428 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2583 | { |
3429 | { |
2584 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3430 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2585 | |
3431 | |
2586 | { |
3432 | { |
2587 | struct ev_loop *loop = w->other; |
3433 | EV_P = w->other; |
2588 | |
3434 | |
2589 | while (fdchangecnt) |
3435 | while (fdchangecnt) |
2590 | { |
3436 | { |
2591 | fd_reify (EV_A); |
3437 | fd_reify (EV_A); |
2592 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3438 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2593 | } |
3439 | } |
2594 | } |
3440 | } |
2595 | } |
3441 | } |
2596 | |
3442 | |
|
|
3443 | static void |
|
|
3444 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3445 | { |
|
|
3446 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3447 | |
|
|
3448 | ev_embed_stop (EV_A_ w); |
|
|
3449 | |
|
|
3450 | { |
|
|
3451 | EV_P = w->other; |
|
|
3452 | |
|
|
3453 | ev_loop_fork (EV_A); |
|
|
3454 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3455 | } |
|
|
3456 | |
|
|
3457 | ev_embed_start (EV_A_ w); |
|
|
3458 | } |
|
|
3459 | |
2597 | #if 0 |
3460 | #if 0 |
2598 | static void |
3461 | static void |
2599 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3462 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2600 | { |
3463 | { |
2601 | ev_idle_stop (EV_A_ idle); |
3464 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2607 | { |
3470 | { |
2608 | if (expect_false (ev_is_active (w))) |
3471 | if (expect_false (ev_is_active (w))) |
2609 | return; |
3472 | return; |
2610 | |
3473 | |
2611 | { |
3474 | { |
2612 | struct ev_loop *loop = w->other; |
3475 | EV_P = w->other; |
2613 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3476 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2614 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3477 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2615 | } |
3478 | } |
|
|
3479 | |
|
|
3480 | EV_FREQUENT_CHECK; |
2616 | |
3481 | |
2617 | ev_set_priority (&w->io, ev_priority (w)); |
3482 | ev_set_priority (&w->io, ev_priority (w)); |
2618 | ev_io_start (EV_A_ &w->io); |
3483 | ev_io_start (EV_A_ &w->io); |
2619 | |
3484 | |
2620 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3485 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2621 | ev_set_priority (&w->prepare, EV_MINPRI); |
3486 | ev_set_priority (&w->prepare, EV_MINPRI); |
2622 | ev_prepare_start (EV_A_ &w->prepare); |
3487 | ev_prepare_start (EV_A_ &w->prepare); |
2623 | |
3488 | |
|
|
3489 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3490 | ev_fork_start (EV_A_ &w->fork); |
|
|
3491 | |
2624 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3492 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2625 | |
3493 | |
2626 | ev_start (EV_A_ (W)w, 1); |
3494 | ev_start (EV_A_ (W)w, 1); |
|
|
3495 | |
|
|
3496 | EV_FREQUENT_CHECK; |
2627 | } |
3497 | } |
2628 | |
3498 | |
2629 | void |
3499 | void |
2630 | ev_embed_stop (EV_P_ ev_embed *w) |
3500 | ev_embed_stop (EV_P_ ev_embed *w) |
2631 | { |
3501 | { |
2632 | clear_pending (EV_A_ (W)w); |
3502 | clear_pending (EV_A_ (W)w); |
2633 | if (expect_false (!ev_is_active (w))) |
3503 | if (expect_false (!ev_is_active (w))) |
2634 | return; |
3504 | return; |
2635 | |
3505 | |
|
|
3506 | EV_FREQUENT_CHECK; |
|
|
3507 | |
2636 | ev_io_stop (EV_A_ &w->io); |
3508 | ev_io_stop (EV_A_ &w->io); |
2637 | ev_prepare_stop (EV_A_ &w->prepare); |
3509 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3510 | ev_fork_stop (EV_A_ &w->fork); |
2638 | |
3511 | |
2639 | ev_stop (EV_A_ (W)w); |
3512 | ev_stop (EV_A_ (W)w); |
|
|
3513 | |
|
|
3514 | EV_FREQUENT_CHECK; |
2640 | } |
3515 | } |
2641 | #endif |
3516 | #endif |
2642 | |
3517 | |
2643 | #if EV_FORK_ENABLE |
3518 | #if EV_FORK_ENABLE |
2644 | void |
3519 | void |
2645 | ev_fork_start (EV_P_ ev_fork *w) |
3520 | ev_fork_start (EV_P_ ev_fork *w) |
2646 | { |
3521 | { |
2647 | if (expect_false (ev_is_active (w))) |
3522 | if (expect_false (ev_is_active (w))) |
2648 | return; |
3523 | return; |
|
|
3524 | |
|
|
3525 | EV_FREQUENT_CHECK; |
2649 | |
3526 | |
2650 | ev_start (EV_A_ (W)w, ++forkcnt); |
3527 | ev_start (EV_A_ (W)w, ++forkcnt); |
2651 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3528 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2652 | forks [forkcnt - 1] = w; |
3529 | forks [forkcnt - 1] = w; |
|
|
3530 | |
|
|
3531 | EV_FREQUENT_CHECK; |
2653 | } |
3532 | } |
2654 | |
3533 | |
2655 | void |
3534 | void |
2656 | ev_fork_stop (EV_P_ ev_fork *w) |
3535 | ev_fork_stop (EV_P_ ev_fork *w) |
2657 | { |
3536 | { |
2658 | clear_pending (EV_A_ (W)w); |
3537 | clear_pending (EV_A_ (W)w); |
2659 | if (expect_false (!ev_is_active (w))) |
3538 | if (expect_false (!ev_is_active (w))) |
2660 | return; |
3539 | return; |
2661 | |
3540 | |
|
|
3541 | EV_FREQUENT_CHECK; |
|
|
3542 | |
2662 | { |
3543 | { |
2663 | int active = ev_active (w); |
3544 | int active = ev_active (w); |
2664 | |
3545 | |
2665 | forks [active - 1] = forks [--forkcnt]; |
3546 | forks [active - 1] = forks [--forkcnt]; |
2666 | ev_active (forks [active - 1]) = active; |
3547 | ev_active (forks [active - 1]) = active; |
2667 | } |
3548 | } |
2668 | |
3549 | |
2669 | ev_stop (EV_A_ (W)w); |
3550 | ev_stop (EV_A_ (W)w); |
|
|
3551 | |
|
|
3552 | EV_FREQUENT_CHECK; |
2670 | } |
3553 | } |
2671 | #endif |
3554 | #endif |
2672 | |
3555 | |
2673 | #if EV_ASYNC_ENABLE |
3556 | #if EV_ASYNC_ENABLE |
2674 | void |
3557 | void |
… | |
… | |
2676 | { |
3559 | { |
2677 | if (expect_false (ev_is_active (w))) |
3560 | if (expect_false (ev_is_active (w))) |
2678 | return; |
3561 | return; |
2679 | |
3562 | |
2680 | evpipe_init (EV_A); |
3563 | evpipe_init (EV_A); |
|
|
3564 | |
|
|
3565 | EV_FREQUENT_CHECK; |
2681 | |
3566 | |
2682 | ev_start (EV_A_ (W)w, ++asynccnt); |
3567 | ev_start (EV_A_ (W)w, ++asynccnt); |
2683 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3568 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2684 | asyncs [asynccnt - 1] = w; |
3569 | asyncs [asynccnt - 1] = w; |
|
|
3570 | |
|
|
3571 | EV_FREQUENT_CHECK; |
2685 | } |
3572 | } |
2686 | |
3573 | |
2687 | void |
3574 | void |
2688 | ev_async_stop (EV_P_ ev_async *w) |
3575 | ev_async_stop (EV_P_ ev_async *w) |
2689 | { |
3576 | { |
2690 | clear_pending (EV_A_ (W)w); |
3577 | clear_pending (EV_A_ (W)w); |
2691 | if (expect_false (!ev_is_active (w))) |
3578 | if (expect_false (!ev_is_active (w))) |
2692 | return; |
3579 | return; |
2693 | |
3580 | |
|
|
3581 | EV_FREQUENT_CHECK; |
|
|
3582 | |
2694 | { |
3583 | { |
2695 | int active = ev_active (w); |
3584 | int active = ev_active (w); |
2696 | |
3585 | |
2697 | asyncs [active - 1] = asyncs [--asynccnt]; |
3586 | asyncs [active - 1] = asyncs [--asynccnt]; |
2698 | ev_active (asyncs [active - 1]) = active; |
3587 | ev_active (asyncs [active - 1]) = active; |
2699 | } |
3588 | } |
2700 | |
3589 | |
2701 | ev_stop (EV_A_ (W)w); |
3590 | ev_stop (EV_A_ (W)w); |
|
|
3591 | |
|
|
3592 | EV_FREQUENT_CHECK; |
2702 | } |
3593 | } |
2703 | |
3594 | |
2704 | void |
3595 | void |
2705 | ev_async_send (EV_P_ ev_async *w) |
3596 | ev_async_send (EV_P_ ev_async *w) |
2706 | { |
3597 | { |
2707 | w->sent = 1; |
3598 | w->sent = 1; |
2708 | evpipe_write (EV_A_ &gotasync); |
3599 | evpipe_write (EV_A_ &async_pending); |
2709 | } |
3600 | } |
2710 | #endif |
3601 | #endif |
2711 | |
3602 | |
2712 | /*****************************************************************************/ |
3603 | /*****************************************************************************/ |
2713 | |
3604 | |
… | |
… | |
2723 | once_cb (EV_P_ struct ev_once *once, int revents) |
3614 | once_cb (EV_P_ struct ev_once *once, int revents) |
2724 | { |
3615 | { |
2725 | void (*cb)(int revents, void *arg) = once->cb; |
3616 | void (*cb)(int revents, void *arg) = once->cb; |
2726 | void *arg = once->arg; |
3617 | void *arg = once->arg; |
2727 | |
3618 | |
2728 | ev_io_stop (EV_A_ &once->io); |
3619 | ev_io_stop (EV_A_ &once->io); |
2729 | ev_timer_stop (EV_A_ &once->to); |
3620 | ev_timer_stop (EV_A_ &once->to); |
2730 | ev_free (once); |
3621 | ev_free (once); |
2731 | |
3622 | |
2732 | cb (revents, arg); |
3623 | cb (revents, arg); |
2733 | } |
3624 | } |
2734 | |
3625 | |
2735 | static void |
3626 | static void |
2736 | once_cb_io (EV_P_ ev_io *w, int revents) |
3627 | once_cb_io (EV_P_ ev_io *w, int revents) |
2737 | { |
3628 | { |
2738 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3629 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3630 | |
|
|
3631 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2739 | } |
3632 | } |
2740 | |
3633 | |
2741 | static void |
3634 | static void |
2742 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3635 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2743 | { |
3636 | { |
2744 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3637 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3638 | |
|
|
3639 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2745 | } |
3640 | } |
2746 | |
3641 | |
2747 | void |
3642 | void |
2748 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3643 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2749 | { |
3644 | { |
… | |
… | |
2771 | ev_timer_set (&once->to, timeout, 0.); |
3666 | ev_timer_set (&once->to, timeout, 0.); |
2772 | ev_timer_start (EV_A_ &once->to); |
3667 | ev_timer_start (EV_A_ &once->to); |
2773 | } |
3668 | } |
2774 | } |
3669 | } |
2775 | |
3670 | |
|
|
3671 | /*****************************************************************************/ |
|
|
3672 | |
|
|
3673 | #if EV_WALK_ENABLE |
|
|
3674 | void |
|
|
3675 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3676 | { |
|
|
3677 | int i, j; |
|
|
3678 | ev_watcher_list *wl, *wn; |
|
|
3679 | |
|
|
3680 | if (types & (EV_IO | EV_EMBED)) |
|
|
3681 | for (i = 0; i < anfdmax; ++i) |
|
|
3682 | for (wl = anfds [i].head; wl; ) |
|
|
3683 | { |
|
|
3684 | wn = wl->next; |
|
|
3685 | |
|
|
3686 | #if EV_EMBED_ENABLE |
|
|
3687 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3688 | { |
|
|
3689 | if (types & EV_EMBED) |
|
|
3690 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3691 | } |
|
|
3692 | else |
|
|
3693 | #endif |
|
|
3694 | #if EV_USE_INOTIFY |
|
|
3695 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3696 | ; |
|
|
3697 | else |
|
|
3698 | #endif |
|
|
3699 | if ((ev_io *)wl != &pipe_w) |
|
|
3700 | if (types & EV_IO) |
|
|
3701 | cb (EV_A_ EV_IO, wl); |
|
|
3702 | |
|
|
3703 | wl = wn; |
|
|
3704 | } |
|
|
3705 | |
|
|
3706 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3707 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3708 | #if EV_STAT_ENABLE |
|
|
3709 | /*TODO: timer is not always active*/ |
|
|
3710 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3711 | { |
|
|
3712 | if (types & EV_STAT) |
|
|
3713 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3714 | } |
|
|
3715 | else |
|
|
3716 | #endif |
|
|
3717 | if (types & EV_TIMER) |
|
|
3718 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3719 | |
|
|
3720 | #if EV_PERIODIC_ENABLE |
|
|
3721 | if (types & EV_PERIODIC) |
|
|
3722 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3723 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3724 | #endif |
|
|
3725 | |
|
|
3726 | #if EV_IDLE_ENABLE |
|
|
3727 | if (types & EV_IDLE) |
|
|
3728 | for (j = NUMPRI; i--; ) |
|
|
3729 | for (i = idlecnt [j]; i--; ) |
|
|
3730 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3731 | #endif |
|
|
3732 | |
|
|
3733 | #if EV_FORK_ENABLE |
|
|
3734 | if (types & EV_FORK) |
|
|
3735 | for (i = forkcnt; i--; ) |
|
|
3736 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3737 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3738 | #endif |
|
|
3739 | |
|
|
3740 | #if EV_ASYNC_ENABLE |
|
|
3741 | if (types & EV_ASYNC) |
|
|
3742 | for (i = asynccnt; i--; ) |
|
|
3743 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3744 | #endif |
|
|
3745 | |
|
|
3746 | #if EV_PREPARE_ENABLE |
|
|
3747 | if (types & EV_PREPARE) |
|
|
3748 | for (i = preparecnt; i--; ) |
|
|
3749 | # if EV_EMBED_ENABLE |
|
|
3750 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3751 | # endif |
|
|
3752 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3753 | #endif |
|
|
3754 | |
|
|
3755 | #if EV_CHECK_ENABLE |
|
|
3756 | if (types & EV_CHECK) |
|
|
3757 | for (i = checkcnt; i--; ) |
|
|
3758 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3759 | #endif |
|
|
3760 | |
|
|
3761 | #if EV_SIGNAL_ENABLE |
|
|
3762 | if (types & EV_SIGNAL) |
|
|
3763 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3764 | for (wl = signals [i].head; wl; ) |
|
|
3765 | { |
|
|
3766 | wn = wl->next; |
|
|
3767 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3768 | wl = wn; |
|
|
3769 | } |
|
|
3770 | #endif |
|
|
3771 | |
|
|
3772 | #if EV_CHILD_ENABLE |
|
|
3773 | if (types & EV_CHILD) |
|
|
3774 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3775 | for (wl = childs [i]; wl; ) |
|
|
3776 | { |
|
|
3777 | wn = wl->next; |
|
|
3778 | cb (EV_A_ EV_CHILD, wl); |
|
|
3779 | wl = wn; |
|
|
3780 | } |
|
|
3781 | #endif |
|
|
3782 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3783 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3784 | } |
|
|
3785 | #endif |
|
|
3786 | |
2776 | #if EV_MULTIPLICITY |
3787 | #if EV_MULTIPLICITY |
2777 | #include "ev_wrap.h" |
3788 | #include "ev_wrap.h" |
2778 | #endif |
3789 | #endif |
2779 | |
3790 | |
2780 | #ifdef __cplusplus |
3791 | #ifdef __cplusplus |