1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
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|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
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54 | # define EV_USE_CLOCK_SYSCALL 1 |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
|
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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64 | # endif |
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65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
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> |
136 | #include <fcntl.h> |
158 | #include <fcntl.h> |
… | |
… | |
154 | #ifndef _WIN32 |
176 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
177 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
178 | # include <sys/wait.h> |
157 | # include <unistd.h> |
179 | # include <unistd.h> |
158 | #else |
180 | #else |
|
|
181 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
182 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
183 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
186 | # endif |
164 | #endif |
187 | #endif |
165 | |
188 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
190 | |
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|
191 | /* try to deduce the maximum number of signals on this platform */ |
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192 | /* one some platforms, NSIG is one too large. we do not bother */ |
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193 | #if defined (EV_NSIG) |
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194 | /* use what's provided */ |
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195 | #elif defined (NSIG) |
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196 | # define EV_NSIG (NSIG) |
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197 | #elif defined(_NSIG) |
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198 | # define EV_NSIG (_NSIG) |
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199 | #elif defined (SIGMAX) |
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200 | # define EV_NSIG (SIGMAX+1) |
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201 | #elif defined (SIG_MAX) |
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202 | # define EV_NSIG (SIG_MAX+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 (MAXSIG) |
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206 | # define EV_NSIG (MAXSIG+1) |
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207 | #elif defined (MAX_SIG) |
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208 | # define EV_NSIG (MAX_SIG+1) |
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209 | #elif defined (SIGARRAYSIZE) |
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210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
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211 | #elif defined (_sys_nsig) |
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212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
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213 | #else |
|
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214 | # error "unable to find value for NSIG, please report" |
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215 | /* to make it compile regardless, just remove the above line */ |
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216 | # define EV_NSIG 65 |
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217 | #endif |
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218 | |
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219 | #ifndef EV_USE_CLOCK_SYSCALL |
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220 | # if __linux && __GLIBC__ >= 2 |
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221 | # define EV_USE_CLOCK_SYSCALL 1 |
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222 | # else |
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223 | # define EV_USE_CLOCK_SYSCALL 0 |
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224 | # endif |
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225 | #endif |
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226 | |
168 | #ifndef EV_USE_MONOTONIC |
227 | #ifndef EV_USE_MONOTONIC |
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228 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
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229 | # define EV_USE_MONOTONIC 1 |
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230 | # else |
169 | # define EV_USE_MONOTONIC 0 |
231 | # define EV_USE_MONOTONIC 0 |
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|
232 | # endif |
170 | #endif |
233 | #endif |
171 | |
234 | |
172 | #ifndef EV_USE_REALTIME |
235 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
236 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
237 | #endif |
175 | |
238 | |
176 | #ifndef EV_USE_NANOSLEEP |
239 | #ifndef EV_USE_NANOSLEEP |
|
|
240 | # if _POSIX_C_SOURCE >= 199309L |
|
|
241 | # define EV_USE_NANOSLEEP 1 |
|
|
242 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
243 | # define EV_USE_NANOSLEEP 0 |
|
|
244 | # endif |
178 | #endif |
245 | #endif |
179 | |
246 | |
180 | #ifndef EV_USE_SELECT |
247 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
248 | # define EV_USE_SELECT 1 |
182 | #endif |
249 | #endif |
… | |
… | |
235 | # else |
302 | # else |
236 | # define EV_USE_EVENTFD 0 |
303 | # define EV_USE_EVENTFD 0 |
237 | # endif |
304 | # endif |
238 | #endif |
305 | #endif |
239 | |
306 | |
|
|
307 | #ifndef EV_USE_SIGNALFD |
|
|
308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
|
|
309 | # define EV_USE_SIGNALFD 1 |
|
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310 | # else |
|
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311 | # define EV_USE_SIGNALFD 0 |
|
|
312 | # endif |
|
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313 | #endif |
|
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314 | |
|
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315 | #if 0 /* debugging */ |
|
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316 | # define EV_VERIFY 3 |
|
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317 | # define EV_USE_4HEAP 1 |
|
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318 | # define EV_HEAP_CACHE_AT 1 |
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319 | #endif |
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320 | |
|
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321 | #ifndef EV_VERIFY |
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322 | # define EV_VERIFY !EV_MINIMAL |
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323 | #endif |
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324 | |
|
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325 | #ifndef EV_USE_4HEAP |
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326 | # define EV_USE_4HEAP !EV_MINIMAL |
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327 | #endif |
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328 | |
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329 | #ifndef EV_HEAP_CACHE_AT |
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330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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331 | #endif |
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332 | |
|
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333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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334 | /* which makes programs even slower. might work on other unices, too. */ |
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335 | #if EV_USE_CLOCK_SYSCALL |
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336 | # include <syscall.h> |
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337 | # ifdef SYS_clock_gettime |
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338 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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339 | # undef EV_USE_MONOTONIC |
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340 | # define EV_USE_MONOTONIC 1 |
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341 | # else |
|
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342 | # undef EV_USE_CLOCK_SYSCALL |
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343 | # define EV_USE_CLOCK_SYSCALL 0 |
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344 | # endif |
|
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345 | #endif |
|
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346 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
241 | |
348 | |
242 | #ifndef CLOCK_MONOTONIC |
349 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
350 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
351 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
259 | # include <sys/select.h> |
366 | # include <sys/select.h> |
260 | # endif |
367 | # endif |
261 | #endif |
368 | #endif |
262 | |
369 | |
263 | #if EV_USE_INOTIFY |
370 | #if EV_USE_INOTIFY |
|
|
371 | # include <sys/utsname.h> |
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372 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
373 | # include <sys/inotify.h> |
|
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374 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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375 | # ifndef IN_DONT_FOLLOW |
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376 | # undef EV_USE_INOTIFY |
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377 | # define EV_USE_INOTIFY 0 |
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378 | # endif |
265 | #endif |
379 | #endif |
266 | |
380 | |
267 | #if EV_SELECT_IS_WINSOCKET |
381 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
382 | # include <winsock.h> |
269 | #endif |
383 | #endif |
270 | |
384 | |
271 | #if EV_USE_EVENTFD |
385 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
386 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
387 | # include <stdint.h> |
|
|
388 | # ifndef EFD_NONBLOCK |
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389 | # define EFD_NONBLOCK O_NONBLOCK |
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390 | # endif |
|
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391 | # ifndef EFD_CLOEXEC |
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392 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
393 | # endif |
274 | # ifdef __cplusplus |
394 | # ifdef __cplusplus |
275 | extern "C" { |
395 | extern "C" { |
276 | # endif |
396 | # endif |
277 | int eventfd (unsigned int initval, int flags); |
397 | int eventfd (unsigned int initval, int flags); |
278 | # ifdef __cplusplus |
398 | # ifdef __cplusplus |
279 | } |
399 | } |
280 | # endif |
400 | # endif |
281 | #endif |
401 | #endif |
282 | |
402 | |
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403 | #if EV_USE_SIGNALFD |
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404 | # include <sys/signalfd.h> |
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405 | #endif |
|
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406 | |
283 | /**/ |
407 | /**/ |
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408 | |
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409 | #if EV_VERIFY >= 3 |
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410 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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411 | #else |
|
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412 | # define EV_FREQUENT_CHECK do { } while (0) |
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413 | #endif |
284 | |
414 | |
285 | /* |
415 | /* |
286 | * This is used to avoid floating point rounding problems. |
416 | * This is used to avoid floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
417 | * It is added to ev_rt_now when scheduling periodics |
288 | * to ensure progress, time-wise, even when rounding |
418 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
315 | # define inline_speed static noinline |
445 | # define inline_speed static noinline |
316 | #else |
446 | #else |
317 | # define inline_speed static inline |
447 | # define inline_speed static inline |
318 | #endif |
448 | #endif |
319 | |
449 | |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
450 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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451 | |
|
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452 | #if EV_MINPRI == EV_MAXPRI |
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453 | # define ABSPRI(w) (((W)w), 0) |
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454 | #else |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
455 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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|
456 | #endif |
322 | |
457 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
458 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
459 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
460 | |
326 | typedef ev_watcher *W; |
461 | typedef ev_watcher *W; |
327 | typedef ev_watcher_list *WL; |
462 | typedef ev_watcher_list *WL; |
328 | typedef ev_watcher_time *WT; |
463 | typedef ev_watcher_time *WT; |
329 | |
464 | |
330 | #if EV_USE_MONOTONIC |
465 | #define ev_active(w) ((W)(w))->active |
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466 | #define ev_at(w) ((WT)(w))->at |
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467 | |
|
|
468 | #if EV_USE_REALTIME |
331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
469 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
332 | /* giving it a reasonably high chance of working on typical architetcures */ |
470 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
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471 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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472 | #endif |
|
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473 | |
|
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474 | #if EV_USE_MONOTONIC |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
475 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
334 | #endif |
476 | #endif |
335 | |
477 | |
336 | #ifdef _WIN32 |
478 | #ifdef _WIN32 |
337 | # include "ev_win32.c" |
479 | # include "ev_win32.c" |
… | |
… | |
346 | { |
488 | { |
347 | syserr_cb = cb; |
489 | syserr_cb = cb; |
348 | } |
490 | } |
349 | |
491 | |
350 | static void noinline |
492 | static void noinline |
351 | syserr (const char *msg) |
493 | ev_syserr (const char *msg) |
352 | { |
494 | { |
353 | if (!msg) |
495 | if (!msg) |
354 | msg = "(libev) system error"; |
496 | msg = "(libev) system error"; |
355 | |
497 | |
356 | if (syserr_cb) |
498 | if (syserr_cb) |
… | |
… | |
360 | perror (msg); |
502 | perror (msg); |
361 | abort (); |
503 | abort (); |
362 | } |
504 | } |
363 | } |
505 | } |
364 | |
506 | |
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507 | static void * |
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508 | ev_realloc_emul (void *ptr, long size) |
|
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509 | { |
|
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510 | /* some systems, notably openbsd and darwin, fail to properly |
|
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511 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
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512 | * the single unix specification, so work around them here. |
|
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513 | */ |
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514 | |
|
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515 | if (size) |
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516 | return realloc (ptr, size); |
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517 | |
|
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518 | free (ptr); |
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519 | return 0; |
|
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520 | } |
|
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521 | |
365 | static void *(*alloc)(void *ptr, long size); |
522 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
366 | |
523 | |
367 | void |
524 | void |
368 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
525 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
369 | { |
526 | { |
370 | alloc = cb; |
527 | alloc = cb; |
371 | } |
528 | } |
372 | |
529 | |
373 | inline_speed void * |
530 | inline_speed void * |
374 | ev_realloc (void *ptr, long size) |
531 | ev_realloc (void *ptr, long size) |
375 | { |
532 | { |
376 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
533 | ptr = alloc (ptr, size); |
377 | |
534 | |
378 | if (!ptr && size) |
535 | if (!ptr && size) |
379 | { |
536 | { |
380 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
537 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
381 | abort (); |
538 | abort (); |
… | |
… | |
387 | #define ev_malloc(size) ev_realloc (0, (size)) |
544 | #define ev_malloc(size) ev_realloc (0, (size)) |
388 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
545 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
389 | |
546 | |
390 | /*****************************************************************************/ |
547 | /*****************************************************************************/ |
391 | |
548 | |
|
|
549 | /* set in reify when reification needed */ |
|
|
550 | #define EV_ANFD_REIFY 1 |
|
|
551 | |
|
|
552 | /* file descriptor info structure */ |
392 | typedef struct |
553 | typedef struct |
393 | { |
554 | { |
394 | WL head; |
555 | WL head; |
395 | unsigned char events; |
556 | unsigned char events; /* the events watched for */ |
|
|
557 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
558 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
396 | unsigned char reify; |
559 | unsigned char unused; |
|
|
560 | #if EV_USE_EPOLL |
|
|
561 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
562 | #endif |
397 | #if EV_SELECT_IS_WINSOCKET |
563 | #if EV_SELECT_IS_WINSOCKET |
398 | SOCKET handle; |
564 | SOCKET handle; |
399 | #endif |
565 | #endif |
400 | } ANFD; |
566 | } ANFD; |
401 | |
567 | |
|
|
568 | /* stores the pending event set for a given watcher */ |
402 | typedef struct |
569 | typedef struct |
403 | { |
570 | { |
404 | W w; |
571 | W w; |
405 | int events; |
572 | int events; /* the pending event set for the given watcher */ |
406 | } ANPENDING; |
573 | } ANPENDING; |
407 | |
574 | |
408 | #if EV_USE_INOTIFY |
575 | #if EV_USE_INOTIFY |
|
|
576 | /* hash table entry per inotify-id */ |
409 | typedef struct |
577 | typedef struct |
410 | { |
578 | { |
411 | WL head; |
579 | WL head; |
412 | } ANFS; |
580 | } ANFS; |
|
|
581 | #endif |
|
|
582 | |
|
|
583 | /* Heap Entry */ |
|
|
584 | #if EV_HEAP_CACHE_AT |
|
|
585 | /* a heap element */ |
|
|
586 | typedef struct { |
|
|
587 | ev_tstamp at; |
|
|
588 | WT w; |
|
|
589 | } ANHE; |
|
|
590 | |
|
|
591 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
592 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
593 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
594 | #else |
|
|
595 | /* a heap element */ |
|
|
596 | typedef WT ANHE; |
|
|
597 | |
|
|
598 | #define ANHE_w(he) (he) |
|
|
599 | #define ANHE_at(he) (he)->at |
|
|
600 | #define ANHE_at_cache(he) |
413 | #endif |
601 | #endif |
414 | |
602 | |
415 | #if EV_MULTIPLICITY |
603 | #if EV_MULTIPLICITY |
416 | |
604 | |
417 | struct ev_loop |
605 | struct ev_loop |
… | |
… | |
436 | |
624 | |
437 | static int ev_default_loop_ptr; |
625 | static int ev_default_loop_ptr; |
438 | |
626 | |
439 | #endif |
627 | #endif |
440 | |
628 | |
|
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629 | #if EV_MINIMAL < 2 |
|
|
630 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
631 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
632 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
633 | #else |
|
|
634 | # define EV_RELEASE_CB (void)0 |
|
|
635 | # define EV_ACQUIRE_CB (void)0 |
|
|
636 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
637 | #endif |
|
|
638 | |
|
|
639 | #define EVUNLOOP_RECURSE 0x80 |
|
|
640 | |
441 | /*****************************************************************************/ |
641 | /*****************************************************************************/ |
442 | |
642 | |
|
|
643 | #ifndef EV_HAVE_EV_TIME |
443 | ev_tstamp |
644 | ev_tstamp |
444 | ev_time (void) |
645 | ev_time (void) |
445 | { |
646 | { |
446 | #if EV_USE_REALTIME |
647 | #if EV_USE_REALTIME |
|
|
648 | if (expect_true (have_realtime)) |
|
|
649 | { |
447 | struct timespec ts; |
650 | struct timespec ts; |
448 | clock_gettime (CLOCK_REALTIME, &ts); |
651 | clock_gettime (CLOCK_REALTIME, &ts); |
449 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
652 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
450 | #else |
653 | } |
|
|
654 | #endif |
|
|
655 | |
451 | struct timeval tv; |
656 | struct timeval tv; |
452 | gettimeofday (&tv, 0); |
657 | gettimeofday (&tv, 0); |
453 | return tv.tv_sec + tv.tv_usec * 1e-6; |
658 | return tv.tv_sec + tv.tv_usec * 1e-6; |
454 | #endif |
|
|
455 | } |
659 | } |
|
|
660 | #endif |
456 | |
661 | |
457 | ev_tstamp inline_size |
662 | inline_size ev_tstamp |
458 | get_clock (void) |
663 | get_clock (void) |
459 | { |
664 | { |
460 | #if EV_USE_MONOTONIC |
665 | #if EV_USE_MONOTONIC |
461 | if (expect_true (have_monotonic)) |
666 | if (expect_true (have_monotonic)) |
462 | { |
667 | { |
… | |
… | |
495 | struct timeval tv; |
700 | struct timeval tv; |
496 | |
701 | |
497 | tv.tv_sec = (time_t)delay; |
702 | tv.tv_sec = (time_t)delay; |
498 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
703 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
499 | |
704 | |
|
|
705 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
706 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
707 | /* by older ones */ |
500 | select (0, 0, 0, 0, &tv); |
708 | select (0, 0, 0, 0, &tv); |
501 | #endif |
709 | #endif |
502 | } |
710 | } |
503 | } |
711 | } |
504 | |
712 | |
505 | /*****************************************************************************/ |
713 | /*****************************************************************************/ |
506 | |
714 | |
507 | int inline_size |
715 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
716 | |
|
|
717 | /* find a suitable new size for the given array, */ |
|
|
718 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
719 | inline_size int |
508 | array_nextsize (int elem, int cur, int cnt) |
720 | array_nextsize (int elem, int cur, int cnt) |
509 | { |
721 | { |
510 | int ncur = cur + 1; |
722 | int ncur = cur + 1; |
511 | |
723 | |
512 | do |
724 | do |
513 | ncur <<= 1; |
725 | ncur <<= 1; |
514 | while (cnt > ncur); |
726 | while (cnt > ncur); |
515 | |
727 | |
516 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
728 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
517 | if (elem * ncur > 4096) |
729 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
518 | { |
730 | { |
519 | ncur *= elem; |
731 | ncur *= elem; |
520 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
732 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
521 | ncur = ncur - sizeof (void *) * 4; |
733 | ncur = ncur - sizeof (void *) * 4; |
522 | ncur /= elem; |
734 | ncur /= elem; |
523 | } |
735 | } |
524 | |
736 | |
525 | return ncur; |
737 | return ncur; |
… | |
… | |
529 | array_realloc (int elem, void *base, int *cur, int cnt) |
741 | array_realloc (int elem, void *base, int *cur, int cnt) |
530 | { |
742 | { |
531 | *cur = array_nextsize (elem, *cur, cnt); |
743 | *cur = array_nextsize (elem, *cur, cnt); |
532 | return ev_realloc (base, elem * *cur); |
744 | return ev_realloc (base, elem * *cur); |
533 | } |
745 | } |
|
|
746 | |
|
|
747 | #define array_init_zero(base,count) \ |
|
|
748 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
534 | |
749 | |
535 | #define array_needsize(type,base,cur,cnt,init) \ |
750 | #define array_needsize(type,base,cur,cnt,init) \ |
536 | if (expect_false ((cnt) > (cur))) \ |
751 | if (expect_false ((cnt) > (cur))) \ |
537 | { \ |
752 | { \ |
538 | int ocur_ = (cur); \ |
753 | int ocur_ = (cur); \ |
… | |
… | |
550 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
765 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
551 | } |
766 | } |
552 | #endif |
767 | #endif |
553 | |
768 | |
554 | #define array_free(stem, idx) \ |
769 | #define array_free(stem, idx) \ |
555 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
770 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
556 | |
771 | |
557 | /*****************************************************************************/ |
772 | /*****************************************************************************/ |
|
|
773 | |
|
|
774 | /* dummy callback for pending events */ |
|
|
775 | static void noinline |
|
|
776 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
777 | { |
|
|
778 | } |
558 | |
779 | |
559 | void noinline |
780 | void noinline |
560 | ev_feed_event (EV_P_ void *w, int revents) |
781 | ev_feed_event (EV_P_ void *w, int revents) |
561 | { |
782 | { |
562 | W w_ = (W)w; |
783 | W w_ = (W)w; |
… | |
… | |
571 | pendings [pri][w_->pending - 1].w = w_; |
792 | pendings [pri][w_->pending - 1].w = w_; |
572 | pendings [pri][w_->pending - 1].events = revents; |
793 | pendings [pri][w_->pending - 1].events = revents; |
573 | } |
794 | } |
574 | } |
795 | } |
575 | |
796 | |
576 | void inline_speed |
797 | inline_speed void |
|
|
798 | feed_reverse (EV_P_ W w) |
|
|
799 | { |
|
|
800 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
801 | rfeeds [rfeedcnt++] = w; |
|
|
802 | } |
|
|
803 | |
|
|
804 | inline_size void |
|
|
805 | feed_reverse_done (EV_P_ int revents) |
|
|
806 | { |
|
|
807 | do |
|
|
808 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
809 | while (rfeedcnt); |
|
|
810 | } |
|
|
811 | |
|
|
812 | inline_speed void |
577 | queue_events (EV_P_ W *events, int eventcnt, int type) |
813 | queue_events (EV_P_ W *events, int eventcnt, int type) |
578 | { |
814 | { |
579 | int i; |
815 | int i; |
580 | |
816 | |
581 | for (i = 0; i < eventcnt; ++i) |
817 | for (i = 0; i < eventcnt; ++i) |
582 | ev_feed_event (EV_A_ events [i], type); |
818 | ev_feed_event (EV_A_ events [i], type); |
583 | } |
819 | } |
584 | |
820 | |
585 | /*****************************************************************************/ |
821 | /*****************************************************************************/ |
586 | |
822 | |
587 | void inline_size |
823 | inline_speed void |
588 | anfds_init (ANFD *base, int count) |
|
|
589 | { |
|
|
590 | while (count--) |
|
|
591 | { |
|
|
592 | base->head = 0; |
|
|
593 | base->events = EV_NONE; |
|
|
594 | base->reify = 0; |
|
|
595 | |
|
|
596 | ++base; |
|
|
597 | } |
|
|
598 | } |
|
|
599 | |
|
|
600 | void inline_speed |
|
|
601 | fd_event (EV_P_ int fd, int revents) |
824 | fd_event_nc (EV_P_ int fd, int revents) |
602 | { |
825 | { |
603 | ANFD *anfd = anfds + fd; |
826 | ANFD *anfd = anfds + fd; |
604 | ev_io *w; |
827 | ev_io *w; |
605 | |
828 | |
606 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
829 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
610 | if (ev) |
833 | if (ev) |
611 | ev_feed_event (EV_A_ (W)w, ev); |
834 | ev_feed_event (EV_A_ (W)w, ev); |
612 | } |
835 | } |
613 | } |
836 | } |
614 | |
837 | |
|
|
838 | /* do not submit kernel events for fds that have reify set */ |
|
|
839 | /* because that means they changed while we were polling for new events */ |
|
|
840 | inline_speed void |
|
|
841 | fd_event (EV_P_ int fd, int revents) |
|
|
842 | { |
|
|
843 | ANFD *anfd = anfds + fd; |
|
|
844 | |
|
|
845 | if (expect_true (!anfd->reify)) |
|
|
846 | fd_event_nc (EV_A_ fd, revents); |
|
|
847 | } |
|
|
848 | |
615 | void |
849 | void |
616 | ev_feed_fd_event (EV_P_ int fd, int revents) |
850 | ev_feed_fd_event (EV_P_ int fd, int revents) |
617 | { |
851 | { |
618 | if (fd >= 0 && fd < anfdmax) |
852 | if (fd >= 0 && fd < anfdmax) |
619 | fd_event (EV_A_ fd, revents); |
853 | fd_event_nc (EV_A_ fd, revents); |
620 | } |
854 | } |
621 | |
855 | |
622 | void inline_size |
856 | /* make sure the external fd watch events are in-sync */ |
|
|
857 | /* with the kernel/libev internal state */ |
|
|
858 | inline_size void |
623 | fd_reify (EV_P) |
859 | fd_reify (EV_P) |
624 | { |
860 | { |
625 | int i; |
861 | int i; |
626 | |
862 | |
627 | for (i = 0; i < fdchangecnt; ++i) |
863 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
636 | events |= (unsigned char)w->events; |
872 | events |= (unsigned char)w->events; |
637 | |
873 | |
638 | #if EV_SELECT_IS_WINSOCKET |
874 | #if EV_SELECT_IS_WINSOCKET |
639 | if (events) |
875 | if (events) |
640 | { |
876 | { |
641 | unsigned long argp; |
877 | unsigned long arg; |
642 | #ifdef EV_FD_TO_WIN32_HANDLE |
878 | #ifdef EV_FD_TO_WIN32_HANDLE |
643 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
879 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
644 | #else |
880 | #else |
645 | anfd->handle = _get_osfhandle (fd); |
881 | anfd->handle = _get_osfhandle (fd); |
646 | #endif |
882 | #endif |
647 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
883 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
648 | } |
884 | } |
649 | #endif |
885 | #endif |
650 | |
886 | |
651 | { |
887 | { |
652 | unsigned char o_events = anfd->events; |
888 | unsigned char o_events = anfd->events; |
653 | unsigned char o_reify = anfd->reify; |
889 | unsigned char o_reify = anfd->reify; |
654 | |
890 | |
655 | anfd->reify = 0; |
891 | anfd->reify = 0; |
656 | anfd->events = events; |
892 | anfd->events = events; |
657 | |
893 | |
658 | if (o_events != events || o_reify & EV_IOFDSET) |
894 | if (o_events != events || o_reify & EV__IOFDSET) |
659 | backend_modify (EV_A_ fd, o_events, events); |
895 | backend_modify (EV_A_ fd, o_events, events); |
660 | } |
896 | } |
661 | } |
897 | } |
662 | |
898 | |
663 | fdchangecnt = 0; |
899 | fdchangecnt = 0; |
664 | } |
900 | } |
665 | |
901 | |
666 | void inline_size |
902 | /* something about the given fd changed */ |
|
|
903 | inline_size void |
667 | fd_change (EV_P_ int fd, int flags) |
904 | fd_change (EV_P_ int fd, int flags) |
668 | { |
905 | { |
669 | unsigned char reify = anfds [fd].reify; |
906 | unsigned char reify = anfds [fd].reify; |
670 | anfds [fd].reify |= flags; |
907 | anfds [fd].reify |= flags; |
671 | |
908 | |
… | |
… | |
675 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
912 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
676 | fdchanges [fdchangecnt - 1] = fd; |
913 | fdchanges [fdchangecnt - 1] = fd; |
677 | } |
914 | } |
678 | } |
915 | } |
679 | |
916 | |
680 | void inline_speed |
917 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
918 | inline_speed void |
681 | fd_kill (EV_P_ int fd) |
919 | fd_kill (EV_P_ int fd) |
682 | { |
920 | { |
683 | ev_io *w; |
921 | ev_io *w; |
684 | |
922 | |
685 | while ((w = (ev_io *)anfds [fd].head)) |
923 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
687 | ev_io_stop (EV_A_ w); |
925 | ev_io_stop (EV_A_ w); |
688 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
926 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
689 | } |
927 | } |
690 | } |
928 | } |
691 | |
929 | |
692 | int inline_size |
930 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
931 | inline_size int |
693 | fd_valid (int fd) |
932 | fd_valid (int fd) |
694 | { |
933 | { |
695 | #ifdef _WIN32 |
934 | #ifdef _WIN32 |
696 | return _get_osfhandle (fd) != -1; |
935 | return _get_osfhandle (fd) != -1; |
697 | #else |
936 | #else |
… | |
… | |
705 | { |
944 | { |
706 | int fd; |
945 | int fd; |
707 | |
946 | |
708 | for (fd = 0; fd < anfdmax; ++fd) |
947 | for (fd = 0; fd < anfdmax; ++fd) |
709 | if (anfds [fd].events) |
948 | if (anfds [fd].events) |
710 | if (!fd_valid (fd) == -1 && errno == EBADF) |
949 | if (!fd_valid (fd) && errno == EBADF) |
711 | fd_kill (EV_A_ fd); |
950 | fd_kill (EV_A_ fd); |
712 | } |
951 | } |
713 | |
952 | |
714 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
953 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
715 | static void noinline |
954 | static void noinline |
… | |
… | |
733 | |
972 | |
734 | for (fd = 0; fd < anfdmax; ++fd) |
973 | for (fd = 0; fd < anfdmax; ++fd) |
735 | if (anfds [fd].events) |
974 | if (anfds [fd].events) |
736 | { |
975 | { |
737 | anfds [fd].events = 0; |
976 | anfds [fd].events = 0; |
|
|
977 | anfds [fd].emask = 0; |
738 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
978 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
739 | } |
979 | } |
740 | } |
980 | } |
741 | |
981 | |
742 | /*****************************************************************************/ |
982 | /*****************************************************************************/ |
743 | |
983 | |
744 | void inline_speed |
984 | /* |
745 | upheap (WT *heap, int k) |
985 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
746 | { |
986 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
747 | WT w = heap [k]; |
987 | * the branching factor of the d-tree. |
|
|
988 | */ |
748 | |
989 | |
749 | while (k) |
990 | /* |
750 | { |
991 | * at the moment we allow libev the luxury of two heaps, |
751 | int p = (k - 1) >> 1; |
992 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
993 | * which is more cache-efficient. |
|
|
994 | * the difference is about 5% with 50000+ watchers. |
|
|
995 | */ |
|
|
996 | #if EV_USE_4HEAP |
752 | |
997 | |
753 | if (heap [p]->at <= w->at) |
998 | #define DHEAP 4 |
|
|
999 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1000 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1001 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1002 | |
|
|
1003 | /* away from the root */ |
|
|
1004 | inline_speed void |
|
|
1005 | downheap (ANHE *heap, int N, int k) |
|
|
1006 | { |
|
|
1007 | ANHE he = heap [k]; |
|
|
1008 | ANHE *E = heap + N + HEAP0; |
|
|
1009 | |
|
|
1010 | for (;;) |
|
|
1011 | { |
|
|
1012 | ev_tstamp minat; |
|
|
1013 | ANHE *minpos; |
|
|
1014 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1015 | |
|
|
1016 | /* find minimum child */ |
|
|
1017 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1018 | { |
|
|
1019 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1020 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1021 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1022 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1023 | } |
|
|
1024 | else if (pos < E) |
|
|
1025 | { |
|
|
1026 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1027 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1028 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1029 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1030 | } |
|
|
1031 | else |
754 | break; |
1032 | break; |
755 | |
1033 | |
|
|
1034 | if (ANHE_at (he) <= minat) |
|
|
1035 | break; |
|
|
1036 | |
|
|
1037 | heap [k] = *minpos; |
|
|
1038 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1039 | |
|
|
1040 | k = minpos - heap; |
|
|
1041 | } |
|
|
1042 | |
|
|
1043 | heap [k] = he; |
|
|
1044 | ev_active (ANHE_w (he)) = k; |
|
|
1045 | } |
|
|
1046 | |
|
|
1047 | #else /* 4HEAP */ |
|
|
1048 | |
|
|
1049 | #define HEAP0 1 |
|
|
1050 | #define HPARENT(k) ((k) >> 1) |
|
|
1051 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1052 | |
|
|
1053 | /* away from the root */ |
|
|
1054 | inline_speed void |
|
|
1055 | downheap (ANHE *heap, int N, int k) |
|
|
1056 | { |
|
|
1057 | ANHE he = heap [k]; |
|
|
1058 | |
|
|
1059 | for (;;) |
|
|
1060 | { |
|
|
1061 | int c = k << 1; |
|
|
1062 | |
|
|
1063 | if (c > N + HEAP0 - 1) |
|
|
1064 | break; |
|
|
1065 | |
|
|
1066 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1067 | ? 1 : 0; |
|
|
1068 | |
|
|
1069 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1070 | break; |
|
|
1071 | |
|
|
1072 | heap [k] = heap [c]; |
|
|
1073 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1074 | |
|
|
1075 | k = c; |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | heap [k] = he; |
|
|
1079 | ev_active (ANHE_w (he)) = k; |
|
|
1080 | } |
|
|
1081 | #endif |
|
|
1082 | |
|
|
1083 | /* towards the root */ |
|
|
1084 | inline_speed void |
|
|
1085 | upheap (ANHE *heap, int k) |
|
|
1086 | { |
|
|
1087 | ANHE he = heap [k]; |
|
|
1088 | |
|
|
1089 | for (;;) |
|
|
1090 | { |
|
|
1091 | int p = HPARENT (k); |
|
|
1092 | |
|
|
1093 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1094 | break; |
|
|
1095 | |
756 | heap [k] = heap [p]; |
1096 | heap [k] = heap [p]; |
757 | ((W)heap [k])->active = k + 1; |
1097 | ev_active (ANHE_w (heap [k])) = k; |
758 | k = p; |
1098 | k = p; |
759 | } |
1099 | } |
760 | |
1100 | |
761 | heap [k] = w; |
1101 | heap [k] = he; |
762 | ((W)heap [k])->active = k + 1; |
1102 | ev_active (ANHE_w (he)) = k; |
763 | } |
1103 | } |
764 | |
1104 | |
765 | void inline_speed |
1105 | /* move an element suitably so it is in a correct place */ |
766 | downheap (WT *heap, int N, int k) |
1106 | inline_size void |
767 | { |
|
|
768 | WT w = heap [k]; |
|
|
769 | |
|
|
770 | for (;;) |
|
|
771 | { |
|
|
772 | int c = (k << 1) + 1; |
|
|
773 | |
|
|
774 | if (c >= N) |
|
|
775 | break; |
|
|
776 | |
|
|
777 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
778 | ? 1 : 0; |
|
|
779 | |
|
|
780 | if (w->at <= heap [c]->at) |
|
|
781 | break; |
|
|
782 | |
|
|
783 | heap [k] = heap [c]; |
|
|
784 | ((W)heap [k])->active = k + 1; |
|
|
785 | |
|
|
786 | k = c; |
|
|
787 | } |
|
|
788 | |
|
|
789 | heap [k] = w; |
|
|
790 | ((W)heap [k])->active = k + 1; |
|
|
791 | } |
|
|
792 | |
|
|
793 | void inline_size |
|
|
794 | adjustheap (WT *heap, int N, int k) |
1107 | adjustheap (ANHE *heap, int N, int k) |
795 | { |
1108 | { |
|
|
1109 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
796 | upheap (heap, k); |
1110 | upheap (heap, k); |
|
|
1111 | else |
797 | downheap (heap, N, k); |
1112 | downheap (heap, N, k); |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1116 | inline_size void |
|
|
1117 | reheap (ANHE *heap, int N) |
|
|
1118 | { |
|
|
1119 | int i; |
|
|
1120 | |
|
|
1121 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1122 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1123 | for (i = 0; i < N; ++i) |
|
|
1124 | upheap (heap, i + HEAP0); |
798 | } |
1125 | } |
799 | |
1126 | |
800 | /*****************************************************************************/ |
1127 | /*****************************************************************************/ |
801 | |
1128 | |
|
|
1129 | /* associate signal watchers to a signal signal */ |
802 | typedef struct |
1130 | typedef struct |
803 | { |
1131 | { |
|
|
1132 | #if EV_MULTIPLICITY |
|
|
1133 | EV_P; |
|
|
1134 | #endif |
804 | WL head; |
1135 | WL head; |
805 | EV_ATOMIC_T gotsig; |
1136 | EV_ATOMIC_T gotsig; |
806 | } ANSIG; |
1137 | } ANSIG; |
807 | |
1138 | |
808 | static ANSIG *signals; |
1139 | static ANSIG signals [EV_NSIG - 1]; |
809 | static int signalmax; |
|
|
810 | |
|
|
811 | static EV_ATOMIC_T gotsig; |
1140 | static EV_ATOMIC_T gotsig; |
812 | |
1141 | |
813 | void inline_size |
|
|
814 | signals_init (ANSIG *base, int count) |
|
|
815 | { |
|
|
816 | while (count--) |
|
|
817 | { |
|
|
818 | base->head = 0; |
|
|
819 | base->gotsig = 0; |
|
|
820 | |
|
|
821 | ++base; |
|
|
822 | } |
|
|
823 | } |
|
|
824 | |
|
|
825 | /*****************************************************************************/ |
1142 | /*****************************************************************************/ |
826 | |
1143 | |
827 | void inline_speed |
1144 | /* used to prepare libev internal fd's */ |
|
|
1145 | /* this is not fork-safe */ |
|
|
1146 | inline_speed void |
828 | fd_intern (int fd) |
1147 | fd_intern (int fd) |
829 | { |
1148 | { |
830 | #ifdef _WIN32 |
1149 | #ifdef _WIN32 |
831 | int arg = 1; |
1150 | unsigned long arg = 1; |
832 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1151 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
833 | #else |
1152 | #else |
834 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1153 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
835 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1154 | fcntl (fd, F_SETFL, O_NONBLOCK); |
836 | #endif |
1155 | #endif |
837 | } |
1156 | } |
838 | |
1157 | |
839 | static void noinline |
1158 | static void noinline |
840 | evpipe_init (EV_P) |
1159 | evpipe_init (EV_P) |
841 | { |
1160 | { |
842 | if (!ev_is_active (&pipeev)) |
1161 | if (!ev_is_active (&pipe_w)) |
843 | { |
1162 | { |
844 | #if EV_USE_EVENTFD |
1163 | #if EV_USE_EVENTFD |
|
|
1164 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1165 | if (evfd < 0 && errno == EINVAL) |
845 | if ((evfd = eventfd (0, 0)) >= 0) |
1166 | evfd = eventfd (0, 0); |
|
|
1167 | |
|
|
1168 | if (evfd >= 0) |
846 | { |
1169 | { |
847 | evpipe [0] = -1; |
1170 | evpipe [0] = -1; |
848 | fd_intern (evfd); |
1171 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
849 | ev_io_set (&pipeev, evfd, EV_READ); |
1172 | ev_io_set (&pipe_w, evfd, EV_READ); |
850 | } |
1173 | } |
851 | else |
1174 | else |
852 | #endif |
1175 | #endif |
853 | { |
1176 | { |
854 | while (pipe (evpipe)) |
1177 | while (pipe (evpipe)) |
855 | syserr ("(libev) error creating signal/async pipe"); |
1178 | ev_syserr ("(libev) error creating signal/async pipe"); |
856 | |
1179 | |
857 | fd_intern (evpipe [0]); |
1180 | fd_intern (evpipe [0]); |
858 | fd_intern (evpipe [1]); |
1181 | fd_intern (evpipe [1]); |
859 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1182 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
860 | } |
1183 | } |
861 | |
1184 | |
862 | ev_io_start (EV_A_ &pipeev); |
1185 | ev_io_start (EV_A_ &pipe_w); |
863 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1186 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
864 | } |
1187 | } |
865 | } |
1188 | } |
866 | |
1189 | |
867 | void inline_size |
1190 | inline_size void |
868 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1191 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
869 | { |
1192 | { |
870 | if (!*flag) |
1193 | if (!*flag) |
871 | { |
1194 | { |
872 | int old_errno = errno; /* save errno because write might clobber it */ |
1195 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
885 | |
1208 | |
886 | errno = old_errno; |
1209 | errno = old_errno; |
887 | } |
1210 | } |
888 | } |
1211 | } |
889 | |
1212 | |
|
|
1213 | /* called whenever the libev signal pipe */ |
|
|
1214 | /* got some events (signal, async) */ |
890 | static void |
1215 | static void |
891 | pipecb (EV_P_ ev_io *iow, int revents) |
1216 | pipecb (EV_P_ ev_io *iow, int revents) |
892 | { |
1217 | { |
893 | #if EV_USE_EVENTFD |
1218 | #if EV_USE_EVENTFD |
894 | if (evfd >= 0) |
1219 | if (evfd >= 0) |
895 | { |
1220 | { |
896 | uint64_t counter = 1; |
1221 | uint64_t counter; |
897 | read (evfd, &counter, sizeof (uint64_t)); |
1222 | read (evfd, &counter, sizeof (uint64_t)); |
898 | } |
1223 | } |
899 | else |
1224 | else |
900 | #endif |
1225 | #endif |
901 | { |
1226 | { |
… | |
… | |
906 | if (gotsig && ev_is_default_loop (EV_A)) |
1231 | if (gotsig && ev_is_default_loop (EV_A)) |
907 | { |
1232 | { |
908 | int signum; |
1233 | int signum; |
909 | gotsig = 0; |
1234 | gotsig = 0; |
910 | |
1235 | |
911 | for (signum = signalmax; signum--; ) |
1236 | for (signum = EV_NSIG - 1; signum--; ) |
912 | if (signals [signum].gotsig) |
1237 | if (signals [signum].gotsig) |
913 | ev_feed_signal_event (EV_A_ signum + 1); |
1238 | ev_feed_signal_event (EV_A_ signum + 1); |
914 | } |
1239 | } |
915 | |
1240 | |
916 | #if EV_ASYNC_ENABLE |
1241 | #if EV_ASYNC_ENABLE |
… | |
… | |
933 | |
1258 | |
934 | static void |
1259 | static void |
935 | ev_sighandler (int signum) |
1260 | ev_sighandler (int signum) |
936 | { |
1261 | { |
937 | #if EV_MULTIPLICITY |
1262 | #if EV_MULTIPLICITY |
938 | struct ev_loop *loop = &default_loop_struct; |
1263 | EV_P = signals [signum - 1].loop; |
939 | #endif |
1264 | #endif |
940 | |
1265 | |
941 | #if _WIN32 |
1266 | #if _WIN32 |
942 | signal (signum, ev_sighandler); |
1267 | signal (signum, ev_sighandler); |
943 | #endif |
1268 | #endif |
… | |
… | |
950 | ev_feed_signal_event (EV_P_ int signum) |
1275 | ev_feed_signal_event (EV_P_ int signum) |
951 | { |
1276 | { |
952 | WL w; |
1277 | WL w; |
953 | |
1278 | |
954 | #if EV_MULTIPLICITY |
1279 | #if EV_MULTIPLICITY |
955 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1280 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
956 | #endif |
1281 | #endif |
|
|
1282 | |
|
|
1283 | if (signum <= 0 || signum > EV_NSIG) |
|
|
1284 | return; |
957 | |
1285 | |
958 | --signum; |
1286 | --signum; |
959 | |
|
|
960 | if (signum < 0 || signum >= signalmax) |
|
|
961 | return; |
|
|
962 | |
1287 | |
963 | signals [signum].gotsig = 0; |
1288 | signals [signum].gotsig = 0; |
964 | |
1289 | |
965 | for (w = signals [signum].head; w; w = w->next) |
1290 | for (w = signals [signum].head; w; w = w->next) |
966 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1291 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
967 | } |
1292 | } |
968 | |
1293 | |
|
|
1294 | #if EV_USE_SIGNALFD |
|
|
1295 | static void |
|
|
1296 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1297 | { |
|
|
1298 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1299 | |
|
|
1300 | for (;;) |
|
|
1301 | { |
|
|
1302 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1303 | |
|
|
1304 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1305 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1306 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1307 | |
|
|
1308 | if (res < (ssize_t)sizeof (si)) |
|
|
1309 | break; |
|
|
1310 | } |
|
|
1311 | } |
|
|
1312 | #endif |
|
|
1313 | |
969 | /*****************************************************************************/ |
1314 | /*****************************************************************************/ |
970 | |
1315 | |
971 | static WL childs [EV_PID_HASHSIZE]; |
1316 | static WL childs [EV_PID_HASHSIZE]; |
972 | |
1317 | |
973 | #ifndef _WIN32 |
1318 | #ifndef _WIN32 |
… | |
… | |
976 | |
1321 | |
977 | #ifndef WIFCONTINUED |
1322 | #ifndef WIFCONTINUED |
978 | # define WIFCONTINUED(status) 0 |
1323 | # define WIFCONTINUED(status) 0 |
979 | #endif |
1324 | #endif |
980 | |
1325 | |
981 | void inline_speed |
1326 | /* handle a single child status event */ |
|
|
1327 | inline_speed void |
982 | child_reap (EV_P_ int chain, int pid, int status) |
1328 | child_reap (EV_P_ int chain, int pid, int status) |
983 | { |
1329 | { |
984 | ev_child *w; |
1330 | ev_child *w; |
985 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1331 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
986 | |
1332 | |
… | |
… | |
999 | |
1345 | |
1000 | #ifndef WCONTINUED |
1346 | #ifndef WCONTINUED |
1001 | # define WCONTINUED 0 |
1347 | # define WCONTINUED 0 |
1002 | #endif |
1348 | #endif |
1003 | |
1349 | |
|
|
1350 | /* called on sigchld etc., calls waitpid */ |
1004 | static void |
1351 | static void |
1005 | childcb (EV_P_ ev_signal *sw, int revents) |
1352 | childcb (EV_P_ ev_signal *sw, int revents) |
1006 | { |
1353 | { |
1007 | int pid, status; |
1354 | int pid, status; |
1008 | |
1355 | |
… | |
… | |
1089 | /* kqueue is borked on everything but netbsd apparently */ |
1436 | /* kqueue is borked on everything but netbsd apparently */ |
1090 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1437 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1091 | flags &= ~EVBACKEND_KQUEUE; |
1438 | flags &= ~EVBACKEND_KQUEUE; |
1092 | #endif |
1439 | #endif |
1093 | #ifdef __APPLE__ |
1440 | #ifdef __APPLE__ |
1094 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1441 | /* only select works correctly on that "unix-certified" platform */ |
1095 | flags &= ~EVBACKEND_POLL; |
1442 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1443 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1096 | #endif |
1444 | #endif |
1097 | |
1445 | |
1098 | return flags; |
1446 | return flags; |
1099 | } |
1447 | } |
1100 | |
1448 | |
… | |
… | |
1114 | ev_backend (EV_P) |
1462 | ev_backend (EV_P) |
1115 | { |
1463 | { |
1116 | return backend; |
1464 | return backend; |
1117 | } |
1465 | } |
1118 | |
1466 | |
|
|
1467 | #if EV_MINIMAL < 2 |
1119 | unsigned int |
1468 | unsigned int |
1120 | ev_loop_count (EV_P) |
1469 | ev_loop_count (EV_P) |
1121 | { |
1470 | { |
1122 | return loop_count; |
1471 | return loop_count; |
1123 | } |
1472 | } |
1124 | |
1473 | |
|
|
1474 | unsigned int |
|
|
1475 | ev_loop_depth (EV_P) |
|
|
1476 | { |
|
|
1477 | return loop_depth; |
|
|
1478 | } |
|
|
1479 | |
1125 | void |
1480 | void |
1126 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1481 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1127 | { |
1482 | { |
1128 | io_blocktime = interval; |
1483 | io_blocktime = interval; |
1129 | } |
1484 | } |
… | |
… | |
1132 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1487 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1133 | { |
1488 | { |
1134 | timeout_blocktime = interval; |
1489 | timeout_blocktime = interval; |
1135 | } |
1490 | } |
1136 | |
1491 | |
|
|
1492 | void |
|
|
1493 | ev_set_userdata (EV_P_ void *data) |
|
|
1494 | { |
|
|
1495 | userdata = data; |
|
|
1496 | } |
|
|
1497 | |
|
|
1498 | void * |
|
|
1499 | ev_userdata (EV_P) |
|
|
1500 | { |
|
|
1501 | return userdata; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1505 | { |
|
|
1506 | invoke_cb = invoke_pending_cb; |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1510 | { |
|
|
1511 | release_cb = release; |
|
|
1512 | acquire_cb = acquire; |
|
|
1513 | } |
|
|
1514 | #endif |
|
|
1515 | |
|
|
1516 | /* initialise a loop structure, must be zero-initialised */ |
1137 | static void noinline |
1517 | static void noinline |
1138 | loop_init (EV_P_ unsigned int flags) |
1518 | loop_init (EV_P_ unsigned int flags) |
1139 | { |
1519 | { |
1140 | if (!backend) |
1520 | if (!backend) |
1141 | { |
1521 | { |
|
|
1522 | #if EV_USE_REALTIME |
|
|
1523 | if (!have_realtime) |
|
|
1524 | { |
|
|
1525 | struct timespec ts; |
|
|
1526 | |
|
|
1527 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1528 | have_realtime = 1; |
|
|
1529 | } |
|
|
1530 | #endif |
|
|
1531 | |
1142 | #if EV_USE_MONOTONIC |
1532 | #if EV_USE_MONOTONIC |
|
|
1533 | if (!have_monotonic) |
1143 | { |
1534 | { |
1144 | struct timespec ts; |
1535 | struct timespec ts; |
|
|
1536 | |
1145 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1537 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1146 | have_monotonic = 1; |
1538 | have_monotonic = 1; |
1147 | } |
1539 | } |
1148 | #endif |
1540 | #endif |
|
|
1541 | |
|
|
1542 | /* pid check not overridable via env */ |
|
|
1543 | #ifndef _WIN32 |
|
|
1544 | if (flags & EVFLAG_FORKCHECK) |
|
|
1545 | curpid = getpid (); |
|
|
1546 | #endif |
|
|
1547 | |
|
|
1548 | if (!(flags & EVFLAG_NOENV) |
|
|
1549 | && !enable_secure () |
|
|
1550 | && getenv ("LIBEV_FLAGS")) |
|
|
1551 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1149 | |
1552 | |
1150 | ev_rt_now = ev_time (); |
1553 | ev_rt_now = ev_time (); |
1151 | mn_now = get_clock (); |
1554 | mn_now = get_clock (); |
1152 | now_floor = mn_now; |
1555 | now_floor = mn_now; |
1153 | rtmn_diff = ev_rt_now - mn_now; |
1556 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1557 | #if EV_MINIMAL < 2 |
|
|
1558 | invoke_cb = ev_invoke_pending; |
|
|
1559 | #endif |
1154 | |
1560 | |
1155 | io_blocktime = 0.; |
1561 | io_blocktime = 0.; |
1156 | timeout_blocktime = 0.; |
1562 | timeout_blocktime = 0.; |
1157 | backend = 0; |
1563 | backend = 0; |
1158 | backend_fd = -1; |
1564 | backend_fd = -1; |
1159 | gotasync = 0; |
1565 | gotasync = 0; |
1160 | #if EV_USE_INOTIFY |
1566 | #if EV_USE_INOTIFY |
1161 | fs_fd = -2; |
1567 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1162 | #endif |
1568 | #endif |
1163 | |
1569 | #if EV_USE_SIGNALFD |
1164 | /* pid check not overridable via env */ |
1570 | sigfd = flags & EVFLAG_NOSIGFD ? -1 : -2; |
1165 | #ifndef _WIN32 |
|
|
1166 | if (flags & EVFLAG_FORKCHECK) |
|
|
1167 | curpid = getpid (); |
|
|
1168 | #endif |
1571 | #endif |
1169 | |
1572 | |
1170 | if (!(flags & EVFLAG_NOENV) |
|
|
1171 | && !enable_secure () |
|
|
1172 | && getenv ("LIBEV_FLAGS")) |
|
|
1173 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1174 | |
|
|
1175 | if (!(flags & 0x0000ffffUL)) |
1573 | if (!(flags & 0x0000ffffU)) |
1176 | flags |= ev_recommended_backends (); |
1574 | flags |= ev_recommended_backends (); |
1177 | |
1575 | |
1178 | #if EV_USE_PORT |
1576 | #if EV_USE_PORT |
1179 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1577 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1180 | #endif |
1578 | #endif |
… | |
… | |
1189 | #endif |
1587 | #endif |
1190 | #if EV_USE_SELECT |
1588 | #if EV_USE_SELECT |
1191 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1589 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1192 | #endif |
1590 | #endif |
1193 | |
1591 | |
|
|
1592 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1593 | |
1194 | ev_init (&pipeev, pipecb); |
1594 | ev_init (&pipe_w, pipecb); |
1195 | ev_set_priority (&pipeev, EV_MAXPRI); |
1595 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1196 | } |
1596 | } |
1197 | } |
1597 | } |
1198 | |
1598 | |
|
|
1599 | /* free up a loop structure */ |
1199 | static void noinline |
1600 | static void noinline |
1200 | loop_destroy (EV_P) |
1601 | loop_destroy (EV_P) |
1201 | { |
1602 | { |
1202 | int i; |
1603 | int i; |
1203 | |
1604 | |
1204 | if (ev_is_active (&pipeev)) |
1605 | if (ev_is_active (&pipe_w)) |
1205 | { |
1606 | { |
1206 | ev_ref (EV_A); /* signal watcher */ |
1607 | /*ev_ref (EV_A);*/ |
1207 | ev_io_stop (EV_A_ &pipeev); |
1608 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1208 | |
1609 | |
1209 | #if EV_USE_EVENTFD |
1610 | #if EV_USE_EVENTFD |
1210 | if (evfd >= 0) |
1611 | if (evfd >= 0) |
1211 | close (evfd); |
1612 | close (evfd); |
1212 | #endif |
1613 | #endif |
… | |
… | |
1216 | close (evpipe [0]); |
1617 | close (evpipe [0]); |
1217 | close (evpipe [1]); |
1618 | close (evpipe [1]); |
1218 | } |
1619 | } |
1219 | } |
1620 | } |
1220 | |
1621 | |
|
|
1622 | #if EV_USE_SIGNALFD |
|
|
1623 | if (ev_is_active (&sigfd_w)) |
|
|
1624 | { |
|
|
1625 | /*ev_ref (EV_A);*/ |
|
|
1626 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1627 | |
|
|
1628 | close (sigfd); |
|
|
1629 | } |
|
|
1630 | #endif |
|
|
1631 | |
1221 | #if EV_USE_INOTIFY |
1632 | #if EV_USE_INOTIFY |
1222 | if (fs_fd >= 0) |
1633 | if (fs_fd >= 0) |
1223 | close (fs_fd); |
1634 | close (fs_fd); |
1224 | #endif |
1635 | #endif |
1225 | |
1636 | |
… | |
… | |
1248 | #if EV_IDLE_ENABLE |
1659 | #if EV_IDLE_ENABLE |
1249 | array_free (idle, [i]); |
1660 | array_free (idle, [i]); |
1250 | #endif |
1661 | #endif |
1251 | } |
1662 | } |
1252 | |
1663 | |
1253 | ev_free (anfds); anfdmax = 0; |
1664 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1254 | |
1665 | |
1255 | /* have to use the microsoft-never-gets-it-right macro */ |
1666 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1667 | array_free (rfeed, EMPTY); |
1256 | array_free (fdchange, EMPTY); |
1668 | array_free (fdchange, EMPTY); |
1257 | array_free (timer, EMPTY); |
1669 | array_free (timer, EMPTY); |
1258 | #if EV_PERIODIC_ENABLE |
1670 | #if EV_PERIODIC_ENABLE |
1259 | array_free (periodic, EMPTY); |
1671 | array_free (periodic, EMPTY); |
1260 | #endif |
1672 | #endif |
… | |
… | |
1268 | #endif |
1680 | #endif |
1269 | |
1681 | |
1270 | backend = 0; |
1682 | backend = 0; |
1271 | } |
1683 | } |
1272 | |
1684 | |
|
|
1685 | #if EV_USE_INOTIFY |
1273 | void inline_size infy_fork (EV_P); |
1686 | inline_size void infy_fork (EV_P); |
|
|
1687 | #endif |
1274 | |
1688 | |
1275 | void inline_size |
1689 | inline_size void |
1276 | loop_fork (EV_P) |
1690 | loop_fork (EV_P) |
1277 | { |
1691 | { |
1278 | #if EV_USE_PORT |
1692 | #if EV_USE_PORT |
1279 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1693 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1280 | #endif |
1694 | #endif |
… | |
… | |
1286 | #endif |
1700 | #endif |
1287 | #if EV_USE_INOTIFY |
1701 | #if EV_USE_INOTIFY |
1288 | infy_fork (EV_A); |
1702 | infy_fork (EV_A); |
1289 | #endif |
1703 | #endif |
1290 | |
1704 | |
1291 | if (ev_is_active (&pipeev)) |
1705 | if (ev_is_active (&pipe_w)) |
1292 | { |
1706 | { |
1293 | /* this "locks" the handlers against writing to the pipe */ |
1707 | /* this "locks" the handlers against writing to the pipe */ |
1294 | /* while we modify the fd vars */ |
1708 | /* while we modify the fd vars */ |
1295 | gotsig = 1; |
1709 | gotsig = 1; |
1296 | #if EV_ASYNC_ENABLE |
1710 | #if EV_ASYNC_ENABLE |
1297 | gotasync = 1; |
1711 | gotasync = 1; |
1298 | #endif |
1712 | #endif |
1299 | |
1713 | |
1300 | ev_ref (EV_A); |
1714 | ev_ref (EV_A); |
1301 | ev_io_stop (EV_A_ &pipeev); |
1715 | ev_io_stop (EV_A_ &pipe_w); |
1302 | |
1716 | |
1303 | #if EV_USE_EVENTFD |
1717 | #if EV_USE_EVENTFD |
1304 | if (evfd >= 0) |
1718 | if (evfd >= 0) |
1305 | close (evfd); |
1719 | close (evfd); |
1306 | #endif |
1720 | #endif |
… | |
… | |
1311 | close (evpipe [1]); |
1725 | close (evpipe [1]); |
1312 | } |
1726 | } |
1313 | |
1727 | |
1314 | evpipe_init (EV_A); |
1728 | evpipe_init (EV_A); |
1315 | /* now iterate over everything, in case we missed something */ |
1729 | /* now iterate over everything, in case we missed something */ |
1316 | pipecb (EV_A_ &pipeev, EV_READ); |
1730 | pipecb (EV_A_ &pipe_w, EV_READ); |
1317 | } |
1731 | } |
1318 | |
1732 | |
1319 | postfork = 0; |
1733 | postfork = 0; |
1320 | } |
1734 | } |
1321 | |
1735 | |
1322 | #if EV_MULTIPLICITY |
1736 | #if EV_MULTIPLICITY |
|
|
1737 | |
1323 | struct ev_loop * |
1738 | struct ev_loop * |
1324 | ev_loop_new (unsigned int flags) |
1739 | ev_loop_new (unsigned int flags) |
1325 | { |
1740 | { |
1326 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1741 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1327 | |
1742 | |
1328 | memset (loop, 0, sizeof (struct ev_loop)); |
1743 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1329 | |
|
|
1330 | loop_init (EV_A_ flags); |
1744 | loop_init (EV_A_ flags); |
1331 | |
1745 | |
1332 | if (ev_backend (EV_A)) |
1746 | if (ev_backend (EV_A)) |
1333 | return loop; |
1747 | return EV_A; |
1334 | |
1748 | |
1335 | return 0; |
1749 | return 0; |
1336 | } |
1750 | } |
1337 | |
1751 | |
1338 | void |
1752 | void |
… | |
… | |
1345 | void |
1759 | void |
1346 | ev_loop_fork (EV_P) |
1760 | ev_loop_fork (EV_P) |
1347 | { |
1761 | { |
1348 | postfork = 1; /* must be in line with ev_default_fork */ |
1762 | postfork = 1; /* must be in line with ev_default_fork */ |
1349 | } |
1763 | } |
|
|
1764 | #endif /* multiplicity */ |
1350 | |
1765 | |
|
|
1766 | #if EV_VERIFY |
|
|
1767 | static void noinline |
|
|
1768 | verify_watcher (EV_P_ W w) |
|
|
1769 | { |
|
|
1770 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1771 | |
|
|
1772 | if (w->pending) |
|
|
1773 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1774 | } |
|
|
1775 | |
|
|
1776 | static void noinline |
|
|
1777 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1778 | { |
|
|
1779 | int i; |
|
|
1780 | |
|
|
1781 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1782 | { |
|
|
1783 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1784 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1785 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1786 | |
|
|
1787 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1788 | } |
|
|
1789 | } |
|
|
1790 | |
|
|
1791 | static void noinline |
|
|
1792 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1793 | { |
|
|
1794 | while (cnt--) |
|
|
1795 | { |
|
|
1796 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1797 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1798 | } |
|
|
1799 | } |
|
|
1800 | #endif |
|
|
1801 | |
|
|
1802 | #if EV_MINIMAL < 2 |
|
|
1803 | void |
|
|
1804 | ev_loop_verify (EV_P) |
|
|
1805 | { |
|
|
1806 | #if EV_VERIFY |
|
|
1807 | int i; |
|
|
1808 | WL w; |
|
|
1809 | |
|
|
1810 | assert (activecnt >= -1); |
|
|
1811 | |
|
|
1812 | assert (fdchangemax >= fdchangecnt); |
|
|
1813 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1814 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1815 | |
|
|
1816 | assert (anfdmax >= 0); |
|
|
1817 | for (i = 0; i < anfdmax; ++i) |
|
|
1818 | for (w = anfds [i].head; w; w = w->next) |
|
|
1819 | { |
|
|
1820 | verify_watcher (EV_A_ (W)w); |
|
|
1821 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1822 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1823 | } |
|
|
1824 | |
|
|
1825 | assert (timermax >= timercnt); |
|
|
1826 | verify_heap (EV_A_ timers, timercnt); |
|
|
1827 | |
|
|
1828 | #if EV_PERIODIC_ENABLE |
|
|
1829 | assert (periodicmax >= periodiccnt); |
|
|
1830 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1831 | #endif |
|
|
1832 | |
|
|
1833 | for (i = NUMPRI; i--; ) |
|
|
1834 | { |
|
|
1835 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1836 | #if EV_IDLE_ENABLE |
|
|
1837 | assert (idleall >= 0); |
|
|
1838 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1839 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1840 | #endif |
|
|
1841 | } |
|
|
1842 | |
|
|
1843 | #if EV_FORK_ENABLE |
|
|
1844 | assert (forkmax >= forkcnt); |
|
|
1845 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1846 | #endif |
|
|
1847 | |
|
|
1848 | #if EV_ASYNC_ENABLE |
|
|
1849 | assert (asyncmax >= asynccnt); |
|
|
1850 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1851 | #endif |
|
|
1852 | |
|
|
1853 | assert (preparemax >= preparecnt); |
|
|
1854 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1855 | |
|
|
1856 | assert (checkmax >= checkcnt); |
|
|
1857 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1858 | |
|
|
1859 | # if 0 |
|
|
1860 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1861 | for (signum = EV_NSIG; signum--; ) if (signals [signum].gotsig) |
|
|
1862 | # endif |
|
|
1863 | #endif |
|
|
1864 | } |
1351 | #endif |
1865 | #endif |
1352 | |
1866 | |
1353 | #if EV_MULTIPLICITY |
1867 | #if EV_MULTIPLICITY |
1354 | struct ev_loop * |
1868 | struct ev_loop * |
1355 | ev_default_loop_init (unsigned int flags) |
1869 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1359 | #endif |
1873 | #endif |
1360 | { |
1874 | { |
1361 | if (!ev_default_loop_ptr) |
1875 | if (!ev_default_loop_ptr) |
1362 | { |
1876 | { |
1363 | #if EV_MULTIPLICITY |
1877 | #if EV_MULTIPLICITY |
1364 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1878 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1365 | #else |
1879 | #else |
1366 | ev_default_loop_ptr = 1; |
1880 | ev_default_loop_ptr = 1; |
1367 | #endif |
1881 | #endif |
1368 | |
1882 | |
1369 | loop_init (EV_A_ flags); |
1883 | loop_init (EV_A_ flags); |
… | |
… | |
1386 | |
1900 | |
1387 | void |
1901 | void |
1388 | ev_default_destroy (void) |
1902 | ev_default_destroy (void) |
1389 | { |
1903 | { |
1390 | #if EV_MULTIPLICITY |
1904 | #if EV_MULTIPLICITY |
1391 | struct ev_loop *loop = ev_default_loop_ptr; |
1905 | EV_P = ev_default_loop_ptr; |
1392 | #endif |
1906 | #endif |
|
|
1907 | |
|
|
1908 | ev_default_loop_ptr = 0; |
1393 | |
1909 | |
1394 | #ifndef _WIN32 |
1910 | #ifndef _WIN32 |
1395 | ev_ref (EV_A); /* child watcher */ |
1911 | ev_ref (EV_A); /* child watcher */ |
1396 | ev_signal_stop (EV_A_ &childev); |
1912 | ev_signal_stop (EV_A_ &childev); |
1397 | #endif |
1913 | #endif |
… | |
… | |
1401 | |
1917 | |
1402 | void |
1918 | void |
1403 | ev_default_fork (void) |
1919 | ev_default_fork (void) |
1404 | { |
1920 | { |
1405 | #if EV_MULTIPLICITY |
1921 | #if EV_MULTIPLICITY |
1406 | struct ev_loop *loop = ev_default_loop_ptr; |
1922 | EV_P = ev_default_loop_ptr; |
1407 | #endif |
1923 | #endif |
1408 | |
1924 | |
1409 | if (backend) |
|
|
1410 | postfork = 1; /* must be in line with ev_loop_fork */ |
1925 | postfork = 1; /* must be in line with ev_loop_fork */ |
1411 | } |
1926 | } |
1412 | |
1927 | |
1413 | /*****************************************************************************/ |
1928 | /*****************************************************************************/ |
1414 | |
1929 | |
1415 | void |
1930 | void |
1416 | ev_invoke (EV_P_ void *w, int revents) |
1931 | ev_invoke (EV_P_ void *w, int revents) |
1417 | { |
1932 | { |
1418 | EV_CB_INVOKE ((W)w, revents); |
1933 | EV_CB_INVOKE ((W)w, revents); |
1419 | } |
1934 | } |
1420 | |
1935 | |
1421 | void inline_speed |
1936 | unsigned int |
1422 | call_pending (EV_P) |
1937 | ev_pending_count (EV_P) |
|
|
1938 | { |
|
|
1939 | int pri; |
|
|
1940 | unsigned int count = 0; |
|
|
1941 | |
|
|
1942 | for (pri = NUMPRI; pri--; ) |
|
|
1943 | count += pendingcnt [pri]; |
|
|
1944 | |
|
|
1945 | return count; |
|
|
1946 | } |
|
|
1947 | |
|
|
1948 | void noinline |
|
|
1949 | ev_invoke_pending (EV_P) |
1423 | { |
1950 | { |
1424 | int pri; |
1951 | int pri; |
1425 | |
1952 | |
1426 | for (pri = NUMPRI; pri--; ) |
1953 | for (pri = NUMPRI; pri--; ) |
1427 | while (pendingcnt [pri]) |
1954 | while (pendingcnt [pri]) |
1428 | { |
1955 | { |
1429 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1956 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1430 | |
1957 | |
1431 | if (expect_true (p->w)) |
|
|
1432 | { |
|
|
1433 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1958 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1959 | /* ^ this is no longer true, as pending_w could be here */ |
1434 | |
1960 | |
1435 | p->w->pending = 0; |
1961 | p->w->pending = 0; |
1436 | EV_CB_INVOKE (p->w, p->events); |
1962 | EV_CB_INVOKE (p->w, p->events); |
1437 | } |
1963 | EV_FREQUENT_CHECK; |
1438 | } |
1964 | } |
1439 | } |
1965 | } |
1440 | |
1966 | |
1441 | void inline_size |
|
|
1442 | timers_reify (EV_P) |
|
|
1443 | { |
|
|
1444 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1445 | { |
|
|
1446 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1447 | |
|
|
1448 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1449 | |
|
|
1450 | /* first reschedule or stop timer */ |
|
|
1451 | if (w->repeat) |
|
|
1452 | { |
|
|
1453 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1454 | |
|
|
1455 | ((WT)w)->at += w->repeat; |
|
|
1456 | if (((WT)w)->at < mn_now) |
|
|
1457 | ((WT)w)->at = mn_now; |
|
|
1458 | |
|
|
1459 | downheap (timers, timercnt, 0); |
|
|
1460 | } |
|
|
1461 | else |
|
|
1462 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1463 | |
|
|
1464 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1465 | } |
|
|
1466 | } |
|
|
1467 | |
|
|
1468 | #if EV_PERIODIC_ENABLE |
|
|
1469 | void inline_size |
|
|
1470 | periodics_reify (EV_P) |
|
|
1471 | { |
|
|
1472 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1473 | { |
|
|
1474 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1475 | |
|
|
1476 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1477 | |
|
|
1478 | /* first reschedule or stop timer */ |
|
|
1479 | if (w->reschedule_cb) |
|
|
1480 | { |
|
|
1481 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1482 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1483 | downheap (periodics, periodiccnt, 0); |
|
|
1484 | } |
|
|
1485 | else if (w->interval) |
|
|
1486 | { |
|
|
1487 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1488 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1489 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1490 | downheap (periodics, periodiccnt, 0); |
|
|
1491 | } |
|
|
1492 | else |
|
|
1493 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1494 | |
|
|
1495 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1496 | } |
|
|
1497 | } |
|
|
1498 | |
|
|
1499 | static void noinline |
|
|
1500 | periodics_reschedule (EV_P) |
|
|
1501 | { |
|
|
1502 | int i; |
|
|
1503 | |
|
|
1504 | /* adjust periodics after time jump */ |
|
|
1505 | for (i = 0; i < periodiccnt; ++i) |
|
|
1506 | { |
|
|
1507 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1508 | |
|
|
1509 | if (w->reschedule_cb) |
|
|
1510 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1511 | else if (w->interval) |
|
|
1512 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1513 | } |
|
|
1514 | |
|
|
1515 | /* now rebuild the heap */ |
|
|
1516 | for (i = periodiccnt >> 1; i--; ) |
|
|
1517 | downheap (periodics, periodiccnt, i); |
|
|
1518 | } |
|
|
1519 | #endif |
|
|
1520 | |
|
|
1521 | #if EV_IDLE_ENABLE |
1967 | #if EV_IDLE_ENABLE |
1522 | void inline_size |
1968 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1969 | /* only when higher priorities are idle" logic */ |
|
|
1970 | inline_size void |
1523 | idle_reify (EV_P) |
1971 | idle_reify (EV_P) |
1524 | { |
1972 | { |
1525 | if (expect_false (idleall)) |
1973 | if (expect_false (idleall)) |
1526 | { |
1974 | { |
1527 | int pri; |
1975 | int pri; |
… | |
… | |
1539 | } |
1987 | } |
1540 | } |
1988 | } |
1541 | } |
1989 | } |
1542 | #endif |
1990 | #endif |
1543 | |
1991 | |
1544 | void inline_speed |
1992 | /* make timers pending */ |
|
|
1993 | inline_size void |
|
|
1994 | timers_reify (EV_P) |
|
|
1995 | { |
|
|
1996 | EV_FREQUENT_CHECK; |
|
|
1997 | |
|
|
1998 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1999 | { |
|
|
2000 | do |
|
|
2001 | { |
|
|
2002 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2003 | |
|
|
2004 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2005 | |
|
|
2006 | /* first reschedule or stop timer */ |
|
|
2007 | if (w->repeat) |
|
|
2008 | { |
|
|
2009 | ev_at (w) += w->repeat; |
|
|
2010 | if (ev_at (w) < mn_now) |
|
|
2011 | ev_at (w) = mn_now; |
|
|
2012 | |
|
|
2013 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2014 | |
|
|
2015 | ANHE_at_cache (timers [HEAP0]); |
|
|
2016 | downheap (timers, timercnt, HEAP0); |
|
|
2017 | } |
|
|
2018 | else |
|
|
2019 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2020 | |
|
|
2021 | EV_FREQUENT_CHECK; |
|
|
2022 | feed_reverse (EV_A_ (W)w); |
|
|
2023 | } |
|
|
2024 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2025 | |
|
|
2026 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
2027 | } |
|
|
2028 | } |
|
|
2029 | |
|
|
2030 | #if EV_PERIODIC_ENABLE |
|
|
2031 | /* make periodics pending */ |
|
|
2032 | inline_size void |
|
|
2033 | periodics_reify (EV_P) |
|
|
2034 | { |
|
|
2035 | EV_FREQUENT_CHECK; |
|
|
2036 | |
|
|
2037 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2038 | { |
|
|
2039 | int feed_count = 0; |
|
|
2040 | |
|
|
2041 | do |
|
|
2042 | { |
|
|
2043 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2044 | |
|
|
2045 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2046 | |
|
|
2047 | /* first reschedule or stop timer */ |
|
|
2048 | if (w->reschedule_cb) |
|
|
2049 | { |
|
|
2050 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2051 | |
|
|
2052 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2053 | |
|
|
2054 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2055 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2056 | } |
|
|
2057 | else if (w->interval) |
|
|
2058 | { |
|
|
2059 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2060 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2061 | /* this might happen because of floating point inexactness */ |
|
|
2062 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2063 | { |
|
|
2064 | ev_at (w) += w->interval; |
|
|
2065 | |
|
|
2066 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2067 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2068 | /* has effectively asked to get triggered more often than possible */ |
|
|
2069 | if (ev_at (w) < ev_rt_now) |
|
|
2070 | ev_at (w) = ev_rt_now; |
|
|
2071 | } |
|
|
2072 | |
|
|
2073 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2074 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2075 | } |
|
|
2076 | else |
|
|
2077 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2078 | |
|
|
2079 | EV_FREQUENT_CHECK; |
|
|
2080 | feed_reverse (EV_A_ (W)w); |
|
|
2081 | } |
|
|
2082 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2083 | |
|
|
2084 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2085 | } |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | /* simply recalculate all periodics */ |
|
|
2089 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
2090 | static void noinline |
|
|
2091 | periodics_reschedule (EV_P) |
|
|
2092 | { |
|
|
2093 | int i; |
|
|
2094 | |
|
|
2095 | /* adjust periodics after time jump */ |
|
|
2096 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2097 | { |
|
|
2098 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2099 | |
|
|
2100 | if (w->reschedule_cb) |
|
|
2101 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2102 | else if (w->interval) |
|
|
2103 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2104 | |
|
|
2105 | ANHE_at_cache (periodics [i]); |
|
|
2106 | } |
|
|
2107 | |
|
|
2108 | reheap (periodics, periodiccnt); |
|
|
2109 | } |
|
|
2110 | #endif |
|
|
2111 | |
|
|
2112 | /* adjust all timers by a given offset */ |
|
|
2113 | static void noinline |
|
|
2114 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2115 | { |
|
|
2116 | int i; |
|
|
2117 | |
|
|
2118 | for (i = 0; i < timercnt; ++i) |
|
|
2119 | { |
|
|
2120 | ANHE *he = timers + i + HEAP0; |
|
|
2121 | ANHE_w (*he)->at += adjust; |
|
|
2122 | ANHE_at_cache (*he); |
|
|
2123 | } |
|
|
2124 | } |
|
|
2125 | |
|
|
2126 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2127 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2128 | inline_speed void |
1545 | time_update (EV_P_ ev_tstamp max_block) |
2129 | time_update (EV_P_ ev_tstamp max_block) |
1546 | { |
2130 | { |
1547 | int i; |
|
|
1548 | |
|
|
1549 | #if EV_USE_MONOTONIC |
2131 | #if EV_USE_MONOTONIC |
1550 | if (expect_true (have_monotonic)) |
2132 | if (expect_true (have_monotonic)) |
1551 | { |
2133 | { |
|
|
2134 | int i; |
1552 | ev_tstamp odiff = rtmn_diff; |
2135 | ev_tstamp odiff = rtmn_diff; |
1553 | |
2136 | |
1554 | mn_now = get_clock (); |
2137 | mn_now = get_clock (); |
1555 | |
2138 | |
1556 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2139 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1574 | */ |
2157 | */ |
1575 | for (i = 4; --i; ) |
2158 | for (i = 4; --i; ) |
1576 | { |
2159 | { |
1577 | rtmn_diff = ev_rt_now - mn_now; |
2160 | rtmn_diff = ev_rt_now - mn_now; |
1578 | |
2161 | |
1579 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2162 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1580 | return; /* all is well */ |
2163 | return; /* all is well */ |
1581 | |
2164 | |
1582 | ev_rt_now = ev_time (); |
2165 | ev_rt_now = ev_time (); |
1583 | mn_now = get_clock (); |
2166 | mn_now = get_clock (); |
1584 | now_floor = mn_now; |
2167 | now_floor = mn_now; |
1585 | } |
2168 | } |
1586 | |
2169 | |
|
|
2170 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2171 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1587 | # if EV_PERIODIC_ENABLE |
2172 | # if EV_PERIODIC_ENABLE |
1588 | periodics_reschedule (EV_A); |
2173 | periodics_reschedule (EV_A); |
1589 | # endif |
2174 | # endif |
1590 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1591 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1592 | } |
2175 | } |
1593 | else |
2176 | else |
1594 | #endif |
2177 | #endif |
1595 | { |
2178 | { |
1596 | ev_rt_now = ev_time (); |
2179 | ev_rt_now = ev_time (); |
1597 | |
2180 | |
1598 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2181 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1599 | { |
2182 | { |
|
|
2183 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2184 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1600 | #if EV_PERIODIC_ENABLE |
2185 | #if EV_PERIODIC_ENABLE |
1601 | periodics_reschedule (EV_A); |
2186 | periodics_reschedule (EV_A); |
1602 | #endif |
2187 | #endif |
1603 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1604 | for (i = 0; i < timercnt; ++i) |
|
|
1605 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1606 | } |
2188 | } |
1607 | |
2189 | |
1608 | mn_now = ev_rt_now; |
2190 | mn_now = ev_rt_now; |
1609 | } |
2191 | } |
1610 | } |
2192 | } |
1611 | |
2193 | |
1612 | void |
2194 | void |
1613 | ev_ref (EV_P) |
|
|
1614 | { |
|
|
1615 | ++activecnt; |
|
|
1616 | } |
|
|
1617 | |
|
|
1618 | void |
|
|
1619 | ev_unref (EV_P) |
|
|
1620 | { |
|
|
1621 | --activecnt; |
|
|
1622 | } |
|
|
1623 | |
|
|
1624 | static int loop_done; |
|
|
1625 | |
|
|
1626 | void |
|
|
1627 | ev_loop (EV_P_ int flags) |
2195 | ev_loop (EV_P_ int flags) |
1628 | { |
2196 | { |
|
|
2197 | #if EV_MINIMAL < 2 |
|
|
2198 | ++loop_depth; |
|
|
2199 | #endif |
|
|
2200 | |
|
|
2201 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2202 | |
1629 | loop_done = EVUNLOOP_CANCEL; |
2203 | loop_done = EVUNLOOP_CANCEL; |
1630 | |
2204 | |
1631 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2205 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1632 | |
2206 | |
1633 | do |
2207 | do |
1634 | { |
2208 | { |
|
|
2209 | #if EV_VERIFY >= 2 |
|
|
2210 | ev_loop_verify (EV_A); |
|
|
2211 | #endif |
|
|
2212 | |
1635 | #ifndef _WIN32 |
2213 | #ifndef _WIN32 |
1636 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2214 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1637 | if (expect_false (getpid () != curpid)) |
2215 | if (expect_false (getpid () != curpid)) |
1638 | { |
2216 | { |
1639 | curpid = getpid (); |
2217 | curpid = getpid (); |
… | |
… | |
1645 | /* we might have forked, so queue fork handlers */ |
2223 | /* we might have forked, so queue fork handlers */ |
1646 | if (expect_false (postfork)) |
2224 | if (expect_false (postfork)) |
1647 | if (forkcnt) |
2225 | if (forkcnt) |
1648 | { |
2226 | { |
1649 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2227 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1650 | call_pending (EV_A); |
2228 | EV_INVOKE_PENDING; |
1651 | } |
2229 | } |
1652 | #endif |
2230 | #endif |
1653 | |
2231 | |
1654 | /* queue prepare watchers (and execute them) */ |
2232 | /* queue prepare watchers (and execute them) */ |
1655 | if (expect_false (preparecnt)) |
2233 | if (expect_false (preparecnt)) |
1656 | { |
2234 | { |
1657 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2235 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1658 | call_pending (EV_A); |
2236 | EV_INVOKE_PENDING; |
1659 | } |
2237 | } |
1660 | |
2238 | |
1661 | if (expect_false (!activecnt)) |
2239 | if (expect_false (loop_done)) |
1662 | break; |
2240 | break; |
1663 | |
2241 | |
1664 | /* we might have forked, so reify kernel state if necessary */ |
2242 | /* we might have forked, so reify kernel state if necessary */ |
1665 | if (expect_false (postfork)) |
2243 | if (expect_false (postfork)) |
1666 | loop_fork (EV_A); |
2244 | loop_fork (EV_A); |
… | |
… | |
1673 | ev_tstamp waittime = 0.; |
2251 | ev_tstamp waittime = 0.; |
1674 | ev_tstamp sleeptime = 0.; |
2252 | ev_tstamp sleeptime = 0.; |
1675 | |
2253 | |
1676 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2254 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1677 | { |
2255 | { |
|
|
2256 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2257 | ev_tstamp prev_mn_now = mn_now; |
|
|
2258 | |
1678 | /* update time to cancel out callback processing overhead */ |
2259 | /* update time to cancel out callback processing overhead */ |
1679 | time_update (EV_A_ 1e100); |
2260 | time_update (EV_A_ 1e100); |
1680 | |
2261 | |
1681 | waittime = MAX_BLOCKTIME; |
2262 | waittime = MAX_BLOCKTIME; |
1682 | |
2263 | |
1683 | if (timercnt) |
2264 | if (timercnt) |
1684 | { |
2265 | { |
1685 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2266 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1686 | if (waittime > to) waittime = to; |
2267 | if (waittime > to) waittime = to; |
1687 | } |
2268 | } |
1688 | |
2269 | |
1689 | #if EV_PERIODIC_ENABLE |
2270 | #if EV_PERIODIC_ENABLE |
1690 | if (periodiccnt) |
2271 | if (periodiccnt) |
1691 | { |
2272 | { |
1692 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2273 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1693 | if (waittime > to) waittime = to; |
2274 | if (waittime > to) waittime = to; |
1694 | } |
2275 | } |
1695 | #endif |
2276 | #endif |
1696 | |
2277 | |
|
|
2278 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1697 | if (expect_false (waittime < timeout_blocktime)) |
2279 | if (expect_false (waittime < timeout_blocktime)) |
1698 | waittime = timeout_blocktime; |
2280 | waittime = timeout_blocktime; |
1699 | |
2281 | |
1700 | sleeptime = waittime - backend_fudge; |
2282 | /* extra check because io_blocktime is commonly 0 */ |
1701 | |
|
|
1702 | if (expect_true (sleeptime > io_blocktime)) |
2283 | if (expect_false (io_blocktime)) |
1703 | sleeptime = io_blocktime; |
|
|
1704 | |
|
|
1705 | if (sleeptime) |
|
|
1706 | { |
2284 | { |
|
|
2285 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2286 | |
|
|
2287 | if (sleeptime > waittime - backend_fudge) |
|
|
2288 | sleeptime = waittime - backend_fudge; |
|
|
2289 | |
|
|
2290 | if (expect_true (sleeptime > 0.)) |
|
|
2291 | { |
1707 | ev_sleep (sleeptime); |
2292 | ev_sleep (sleeptime); |
1708 | waittime -= sleeptime; |
2293 | waittime -= sleeptime; |
|
|
2294 | } |
1709 | } |
2295 | } |
1710 | } |
2296 | } |
1711 | |
2297 | |
|
|
2298 | #if EV_MINIMAL < 2 |
1712 | ++loop_count; |
2299 | ++loop_count; |
|
|
2300 | #endif |
|
|
2301 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1713 | backend_poll (EV_A_ waittime); |
2302 | backend_poll (EV_A_ waittime); |
|
|
2303 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1714 | |
2304 | |
1715 | /* update ev_rt_now, do magic */ |
2305 | /* update ev_rt_now, do magic */ |
1716 | time_update (EV_A_ waittime + sleeptime); |
2306 | time_update (EV_A_ waittime + sleeptime); |
1717 | } |
2307 | } |
1718 | |
2308 | |
… | |
… | |
1729 | |
2319 | |
1730 | /* queue check watchers, to be executed first */ |
2320 | /* queue check watchers, to be executed first */ |
1731 | if (expect_false (checkcnt)) |
2321 | if (expect_false (checkcnt)) |
1732 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2322 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1733 | |
2323 | |
1734 | call_pending (EV_A); |
2324 | EV_INVOKE_PENDING; |
1735 | } |
2325 | } |
1736 | while (expect_true ( |
2326 | while (expect_true ( |
1737 | activecnt |
2327 | activecnt |
1738 | && !loop_done |
2328 | && !loop_done |
1739 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2329 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1740 | )); |
2330 | )); |
1741 | |
2331 | |
1742 | if (loop_done == EVUNLOOP_ONE) |
2332 | if (loop_done == EVUNLOOP_ONE) |
1743 | loop_done = EVUNLOOP_CANCEL; |
2333 | loop_done = EVUNLOOP_CANCEL; |
|
|
2334 | |
|
|
2335 | #if EV_MINIMAL < 2 |
|
|
2336 | --loop_depth; |
|
|
2337 | #endif |
1744 | } |
2338 | } |
1745 | |
2339 | |
1746 | void |
2340 | void |
1747 | ev_unloop (EV_P_ int how) |
2341 | ev_unloop (EV_P_ int how) |
1748 | { |
2342 | { |
1749 | loop_done = how; |
2343 | loop_done = how; |
1750 | } |
2344 | } |
1751 | |
2345 | |
|
|
2346 | void |
|
|
2347 | ev_ref (EV_P) |
|
|
2348 | { |
|
|
2349 | ++activecnt; |
|
|
2350 | } |
|
|
2351 | |
|
|
2352 | void |
|
|
2353 | ev_unref (EV_P) |
|
|
2354 | { |
|
|
2355 | --activecnt; |
|
|
2356 | } |
|
|
2357 | |
|
|
2358 | void |
|
|
2359 | ev_now_update (EV_P) |
|
|
2360 | { |
|
|
2361 | time_update (EV_A_ 1e100); |
|
|
2362 | } |
|
|
2363 | |
|
|
2364 | void |
|
|
2365 | ev_suspend (EV_P) |
|
|
2366 | { |
|
|
2367 | ev_now_update (EV_A); |
|
|
2368 | } |
|
|
2369 | |
|
|
2370 | void |
|
|
2371 | ev_resume (EV_P) |
|
|
2372 | { |
|
|
2373 | ev_tstamp mn_prev = mn_now; |
|
|
2374 | |
|
|
2375 | ev_now_update (EV_A); |
|
|
2376 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2377 | #if EV_PERIODIC_ENABLE |
|
|
2378 | /* TODO: really do this? */ |
|
|
2379 | periodics_reschedule (EV_A); |
|
|
2380 | #endif |
|
|
2381 | } |
|
|
2382 | |
1752 | /*****************************************************************************/ |
2383 | /*****************************************************************************/ |
|
|
2384 | /* singly-linked list management, used when the expected list length is short */ |
1753 | |
2385 | |
1754 | void inline_size |
2386 | inline_size void |
1755 | wlist_add (WL *head, WL elem) |
2387 | wlist_add (WL *head, WL elem) |
1756 | { |
2388 | { |
1757 | elem->next = *head; |
2389 | elem->next = *head; |
1758 | *head = elem; |
2390 | *head = elem; |
1759 | } |
2391 | } |
1760 | |
2392 | |
1761 | void inline_size |
2393 | inline_size void |
1762 | wlist_del (WL *head, WL elem) |
2394 | wlist_del (WL *head, WL elem) |
1763 | { |
2395 | { |
1764 | while (*head) |
2396 | while (*head) |
1765 | { |
2397 | { |
1766 | if (*head == elem) |
2398 | if (*head == elem) |
… | |
… | |
1771 | |
2403 | |
1772 | head = &(*head)->next; |
2404 | head = &(*head)->next; |
1773 | } |
2405 | } |
1774 | } |
2406 | } |
1775 | |
2407 | |
1776 | void inline_speed |
2408 | /* internal, faster, version of ev_clear_pending */ |
|
|
2409 | inline_speed void |
1777 | clear_pending (EV_P_ W w) |
2410 | clear_pending (EV_P_ W w) |
1778 | { |
2411 | { |
1779 | if (w->pending) |
2412 | if (w->pending) |
1780 | { |
2413 | { |
1781 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2414 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1782 | w->pending = 0; |
2415 | w->pending = 0; |
1783 | } |
2416 | } |
1784 | } |
2417 | } |
1785 | |
2418 | |
1786 | int |
2419 | int |
… | |
… | |
1790 | int pending = w_->pending; |
2423 | int pending = w_->pending; |
1791 | |
2424 | |
1792 | if (expect_true (pending)) |
2425 | if (expect_true (pending)) |
1793 | { |
2426 | { |
1794 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2427 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2428 | p->w = (W)&pending_w; |
1795 | w_->pending = 0; |
2429 | w_->pending = 0; |
1796 | p->w = 0; |
|
|
1797 | return p->events; |
2430 | return p->events; |
1798 | } |
2431 | } |
1799 | else |
2432 | else |
1800 | return 0; |
2433 | return 0; |
1801 | } |
2434 | } |
1802 | |
2435 | |
1803 | void inline_size |
2436 | inline_size void |
1804 | pri_adjust (EV_P_ W w) |
2437 | pri_adjust (EV_P_ W w) |
1805 | { |
2438 | { |
1806 | int pri = w->priority; |
2439 | int pri = ev_priority (w); |
1807 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2440 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1808 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2441 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1809 | w->priority = pri; |
2442 | ev_set_priority (w, pri); |
1810 | } |
2443 | } |
1811 | |
2444 | |
1812 | void inline_speed |
2445 | inline_speed void |
1813 | ev_start (EV_P_ W w, int active) |
2446 | ev_start (EV_P_ W w, int active) |
1814 | { |
2447 | { |
1815 | pri_adjust (EV_A_ w); |
2448 | pri_adjust (EV_A_ w); |
1816 | w->active = active; |
2449 | w->active = active; |
1817 | ev_ref (EV_A); |
2450 | ev_ref (EV_A); |
1818 | } |
2451 | } |
1819 | |
2452 | |
1820 | void inline_size |
2453 | inline_size void |
1821 | ev_stop (EV_P_ W w) |
2454 | ev_stop (EV_P_ W w) |
1822 | { |
2455 | { |
1823 | ev_unref (EV_A); |
2456 | ev_unref (EV_A); |
1824 | w->active = 0; |
2457 | w->active = 0; |
1825 | } |
2458 | } |
… | |
… | |
1832 | int fd = w->fd; |
2465 | int fd = w->fd; |
1833 | |
2466 | |
1834 | if (expect_false (ev_is_active (w))) |
2467 | if (expect_false (ev_is_active (w))) |
1835 | return; |
2468 | return; |
1836 | |
2469 | |
1837 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2470 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2471 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2472 | |
|
|
2473 | EV_FREQUENT_CHECK; |
1838 | |
2474 | |
1839 | ev_start (EV_A_ (W)w, 1); |
2475 | ev_start (EV_A_ (W)w, 1); |
1840 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2476 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1841 | wlist_add (&anfds[fd].head, (WL)w); |
2477 | wlist_add (&anfds[fd].head, (WL)w); |
1842 | |
2478 | |
1843 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2479 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1844 | w->events &= ~EV_IOFDSET; |
2480 | w->events &= ~EV__IOFDSET; |
|
|
2481 | |
|
|
2482 | EV_FREQUENT_CHECK; |
1845 | } |
2483 | } |
1846 | |
2484 | |
1847 | void noinline |
2485 | void noinline |
1848 | ev_io_stop (EV_P_ ev_io *w) |
2486 | ev_io_stop (EV_P_ ev_io *w) |
1849 | { |
2487 | { |
1850 | clear_pending (EV_A_ (W)w); |
2488 | clear_pending (EV_A_ (W)w); |
1851 | if (expect_false (!ev_is_active (w))) |
2489 | if (expect_false (!ev_is_active (w))) |
1852 | return; |
2490 | return; |
1853 | |
2491 | |
1854 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2492 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2493 | |
|
|
2494 | EV_FREQUENT_CHECK; |
1855 | |
2495 | |
1856 | wlist_del (&anfds[w->fd].head, (WL)w); |
2496 | wlist_del (&anfds[w->fd].head, (WL)w); |
1857 | ev_stop (EV_A_ (W)w); |
2497 | ev_stop (EV_A_ (W)w); |
1858 | |
2498 | |
1859 | fd_change (EV_A_ w->fd, 1); |
2499 | fd_change (EV_A_ w->fd, 1); |
|
|
2500 | |
|
|
2501 | EV_FREQUENT_CHECK; |
1860 | } |
2502 | } |
1861 | |
2503 | |
1862 | void noinline |
2504 | void noinline |
1863 | ev_timer_start (EV_P_ ev_timer *w) |
2505 | ev_timer_start (EV_P_ ev_timer *w) |
1864 | { |
2506 | { |
1865 | if (expect_false (ev_is_active (w))) |
2507 | if (expect_false (ev_is_active (w))) |
1866 | return; |
2508 | return; |
1867 | |
2509 | |
1868 | ((WT)w)->at += mn_now; |
2510 | ev_at (w) += mn_now; |
1869 | |
2511 | |
1870 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2512 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1871 | |
2513 | |
|
|
2514 | EV_FREQUENT_CHECK; |
|
|
2515 | |
|
|
2516 | ++timercnt; |
1872 | ev_start (EV_A_ (W)w, ++timercnt); |
2517 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1873 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2518 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1874 | timers [timercnt - 1] = (WT)w; |
2519 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1875 | upheap (timers, timercnt - 1); |
2520 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2521 | upheap (timers, ev_active (w)); |
1876 | |
2522 | |
|
|
2523 | EV_FREQUENT_CHECK; |
|
|
2524 | |
1877 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2525 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1878 | } |
2526 | } |
1879 | |
2527 | |
1880 | void noinline |
2528 | void noinline |
1881 | ev_timer_stop (EV_P_ ev_timer *w) |
2529 | ev_timer_stop (EV_P_ ev_timer *w) |
1882 | { |
2530 | { |
1883 | clear_pending (EV_A_ (W)w); |
2531 | clear_pending (EV_A_ (W)w); |
1884 | if (expect_false (!ev_is_active (w))) |
2532 | if (expect_false (!ev_is_active (w))) |
1885 | return; |
2533 | return; |
1886 | |
2534 | |
1887 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2535 | EV_FREQUENT_CHECK; |
1888 | |
2536 | |
1889 | { |
2537 | { |
1890 | int active = ((W)w)->active; |
2538 | int active = ev_active (w); |
1891 | |
2539 | |
|
|
2540 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2541 | |
|
|
2542 | --timercnt; |
|
|
2543 | |
1892 | if (expect_true (--active < --timercnt)) |
2544 | if (expect_true (active < timercnt + HEAP0)) |
1893 | { |
2545 | { |
1894 | timers [active] = timers [timercnt]; |
2546 | timers [active] = timers [timercnt + HEAP0]; |
1895 | adjustheap (timers, timercnt, active); |
2547 | adjustheap (timers, timercnt, active); |
1896 | } |
2548 | } |
1897 | } |
2549 | } |
1898 | |
2550 | |
1899 | ((WT)w)->at -= mn_now; |
2551 | EV_FREQUENT_CHECK; |
|
|
2552 | |
|
|
2553 | ev_at (w) -= mn_now; |
1900 | |
2554 | |
1901 | ev_stop (EV_A_ (W)w); |
2555 | ev_stop (EV_A_ (W)w); |
1902 | } |
2556 | } |
1903 | |
2557 | |
1904 | void noinline |
2558 | void noinline |
1905 | ev_timer_again (EV_P_ ev_timer *w) |
2559 | ev_timer_again (EV_P_ ev_timer *w) |
1906 | { |
2560 | { |
|
|
2561 | EV_FREQUENT_CHECK; |
|
|
2562 | |
1907 | if (ev_is_active (w)) |
2563 | if (ev_is_active (w)) |
1908 | { |
2564 | { |
1909 | if (w->repeat) |
2565 | if (w->repeat) |
1910 | { |
2566 | { |
1911 | ((WT)w)->at = mn_now + w->repeat; |
2567 | ev_at (w) = mn_now + w->repeat; |
|
|
2568 | ANHE_at_cache (timers [ev_active (w)]); |
1912 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2569 | adjustheap (timers, timercnt, ev_active (w)); |
1913 | } |
2570 | } |
1914 | else |
2571 | else |
1915 | ev_timer_stop (EV_A_ w); |
2572 | ev_timer_stop (EV_A_ w); |
1916 | } |
2573 | } |
1917 | else if (w->repeat) |
2574 | else if (w->repeat) |
1918 | { |
2575 | { |
1919 | w->at = w->repeat; |
2576 | ev_at (w) = w->repeat; |
1920 | ev_timer_start (EV_A_ w); |
2577 | ev_timer_start (EV_A_ w); |
1921 | } |
2578 | } |
|
|
2579 | |
|
|
2580 | EV_FREQUENT_CHECK; |
|
|
2581 | } |
|
|
2582 | |
|
|
2583 | ev_tstamp |
|
|
2584 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2585 | { |
|
|
2586 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1922 | } |
2587 | } |
1923 | |
2588 | |
1924 | #if EV_PERIODIC_ENABLE |
2589 | #if EV_PERIODIC_ENABLE |
1925 | void noinline |
2590 | void noinline |
1926 | ev_periodic_start (EV_P_ ev_periodic *w) |
2591 | ev_periodic_start (EV_P_ ev_periodic *w) |
1927 | { |
2592 | { |
1928 | if (expect_false (ev_is_active (w))) |
2593 | if (expect_false (ev_is_active (w))) |
1929 | return; |
2594 | return; |
1930 | |
2595 | |
1931 | if (w->reschedule_cb) |
2596 | if (w->reschedule_cb) |
1932 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2597 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1933 | else if (w->interval) |
2598 | else if (w->interval) |
1934 | { |
2599 | { |
1935 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2600 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1936 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2601 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1937 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2602 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1938 | } |
2603 | } |
1939 | else |
2604 | else |
1940 | ((WT)w)->at = w->offset; |
2605 | ev_at (w) = w->offset; |
1941 | |
2606 | |
|
|
2607 | EV_FREQUENT_CHECK; |
|
|
2608 | |
|
|
2609 | ++periodiccnt; |
1942 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2610 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1943 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2611 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1944 | periodics [periodiccnt - 1] = (WT)w; |
2612 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1945 | upheap (periodics, periodiccnt - 1); |
2613 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2614 | upheap (periodics, ev_active (w)); |
1946 | |
2615 | |
|
|
2616 | EV_FREQUENT_CHECK; |
|
|
2617 | |
1947 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2618 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1948 | } |
2619 | } |
1949 | |
2620 | |
1950 | void noinline |
2621 | void noinline |
1951 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2622 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1952 | { |
2623 | { |
1953 | clear_pending (EV_A_ (W)w); |
2624 | clear_pending (EV_A_ (W)w); |
1954 | if (expect_false (!ev_is_active (w))) |
2625 | if (expect_false (!ev_is_active (w))) |
1955 | return; |
2626 | return; |
1956 | |
2627 | |
1957 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2628 | EV_FREQUENT_CHECK; |
1958 | |
2629 | |
1959 | { |
2630 | { |
1960 | int active = ((W)w)->active; |
2631 | int active = ev_active (w); |
1961 | |
2632 | |
|
|
2633 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2634 | |
|
|
2635 | --periodiccnt; |
|
|
2636 | |
1962 | if (expect_true (--active < --periodiccnt)) |
2637 | if (expect_true (active < periodiccnt + HEAP0)) |
1963 | { |
2638 | { |
1964 | periodics [active] = periodics [periodiccnt]; |
2639 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1965 | adjustheap (periodics, periodiccnt, active); |
2640 | adjustheap (periodics, periodiccnt, active); |
1966 | } |
2641 | } |
1967 | } |
2642 | } |
1968 | |
2643 | |
|
|
2644 | EV_FREQUENT_CHECK; |
|
|
2645 | |
1969 | ev_stop (EV_A_ (W)w); |
2646 | ev_stop (EV_A_ (W)w); |
1970 | } |
2647 | } |
1971 | |
2648 | |
1972 | void noinline |
2649 | void noinline |
1973 | ev_periodic_again (EV_P_ ev_periodic *w) |
2650 | ev_periodic_again (EV_P_ ev_periodic *w) |
… | |
… | |
1983 | #endif |
2660 | #endif |
1984 | |
2661 | |
1985 | void noinline |
2662 | void noinline |
1986 | ev_signal_start (EV_P_ ev_signal *w) |
2663 | ev_signal_start (EV_P_ ev_signal *w) |
1987 | { |
2664 | { |
1988 | #if EV_MULTIPLICITY |
|
|
1989 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1990 | #endif |
|
|
1991 | if (expect_false (ev_is_active (w))) |
2665 | if (expect_false (ev_is_active (w))) |
1992 | return; |
2666 | return; |
1993 | |
2667 | |
1994 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2668 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1995 | |
2669 | |
1996 | evpipe_init (EV_A); |
2670 | #if EV_MULTIPLICITY |
|
|
2671 | assert (("libev: tried to attach to a signal from two different loops", |
|
|
2672 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
1997 | |
2673 | |
|
|
2674 | signals [w->signum - 1].loop = EV_A; |
|
|
2675 | #endif |
|
|
2676 | |
|
|
2677 | EV_FREQUENT_CHECK; |
|
|
2678 | |
|
|
2679 | #if EV_USE_SIGNALFD |
|
|
2680 | if (sigfd == -2) |
1998 | { |
2681 | { |
1999 | #ifndef _WIN32 |
2682 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2000 | sigset_t full, prev; |
2683 | if (sigfd < 0 && errno == EINVAL) |
2001 | sigfillset (&full); |
2684 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2002 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2003 | #endif |
|
|
2004 | |
2685 | |
2005 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2686 | if (sigfd >= 0) |
|
|
2687 | { |
|
|
2688 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2006 | |
2689 | |
2007 | #ifndef _WIN32 |
2690 | sigemptyset (&sigfd_set); |
2008 | sigprocmask (SIG_SETMASK, &prev, 0); |
2691 | |
2009 | #endif |
2692 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2693 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2694 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2695 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2696 | } |
2010 | } |
2697 | } |
|
|
2698 | |
|
|
2699 | if (sigfd >= 0) |
|
|
2700 | { |
|
|
2701 | /* TODO: check .head */ |
|
|
2702 | sigaddset (&sigfd_set, w->signum); |
|
|
2703 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2704 | |
|
|
2705 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2706 | } |
|
|
2707 | #endif |
2011 | |
2708 | |
2012 | ev_start (EV_A_ (W)w, 1); |
2709 | ev_start (EV_A_ (W)w, 1); |
2013 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2710 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2014 | |
2711 | |
2015 | if (!((WL)w)->next) |
2712 | if (!((WL)w)->next) |
|
|
2713 | # if EV_USE_SIGNALFD |
|
|
2714 | if (sigfd < 0) /*TODO*/ |
|
|
2715 | # endif |
2016 | { |
2716 | { |
2017 | #if _WIN32 |
2717 | # if _WIN32 |
2018 | signal (w->signum, ev_sighandler); |
2718 | signal (w->signum, ev_sighandler); |
2019 | #else |
2719 | # else |
2020 | struct sigaction sa; |
2720 | struct sigaction sa; |
|
|
2721 | |
|
|
2722 | evpipe_init (EV_A); |
|
|
2723 | |
2021 | sa.sa_handler = ev_sighandler; |
2724 | sa.sa_handler = ev_sighandler; |
2022 | sigfillset (&sa.sa_mask); |
2725 | sigfillset (&sa.sa_mask); |
2023 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2726 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2024 | sigaction (w->signum, &sa, 0); |
2727 | sigaction (w->signum, &sa, 0); |
|
|
2728 | |
|
|
2729 | sigemptyset (&sa.sa_mask); |
|
|
2730 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2731 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2025 | #endif |
2732 | #endif |
2026 | } |
2733 | } |
|
|
2734 | |
|
|
2735 | EV_FREQUENT_CHECK; |
2027 | } |
2736 | } |
2028 | |
2737 | |
2029 | void noinline |
2738 | void noinline |
2030 | ev_signal_stop (EV_P_ ev_signal *w) |
2739 | ev_signal_stop (EV_P_ ev_signal *w) |
2031 | { |
2740 | { |
2032 | clear_pending (EV_A_ (W)w); |
2741 | clear_pending (EV_A_ (W)w); |
2033 | if (expect_false (!ev_is_active (w))) |
2742 | if (expect_false (!ev_is_active (w))) |
2034 | return; |
2743 | return; |
2035 | |
2744 | |
|
|
2745 | EV_FREQUENT_CHECK; |
|
|
2746 | |
2036 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2747 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2037 | ev_stop (EV_A_ (W)w); |
2748 | ev_stop (EV_A_ (W)w); |
2038 | |
2749 | |
2039 | if (!signals [w->signum - 1].head) |
2750 | if (!signals [w->signum - 1].head) |
|
|
2751 | { |
|
|
2752 | #if EV_MULTIPLICITY |
|
|
2753 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2754 | #endif |
|
|
2755 | #if EV_USE_SIGNALFD |
|
|
2756 | if (sigfd >= 0) |
|
|
2757 | { |
|
|
2758 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2759 | sigdelset (&sigfd_set, w->signum); |
|
|
2760 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2761 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2762 | /*TODO: maybe unblock signal? */ |
|
|
2763 | } |
|
|
2764 | else |
|
|
2765 | #endif |
2040 | signal (w->signum, SIG_DFL); |
2766 | signal (w->signum, SIG_DFL); |
|
|
2767 | } |
|
|
2768 | |
|
|
2769 | EV_FREQUENT_CHECK; |
2041 | } |
2770 | } |
2042 | |
2771 | |
2043 | void |
2772 | void |
2044 | ev_child_start (EV_P_ ev_child *w) |
2773 | ev_child_start (EV_P_ ev_child *w) |
2045 | { |
2774 | { |
2046 | #if EV_MULTIPLICITY |
2775 | #if EV_MULTIPLICITY |
2047 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2776 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2048 | #endif |
2777 | #endif |
2049 | if (expect_false (ev_is_active (w))) |
2778 | if (expect_false (ev_is_active (w))) |
2050 | return; |
2779 | return; |
2051 | |
2780 | |
|
|
2781 | EV_FREQUENT_CHECK; |
|
|
2782 | |
2052 | ev_start (EV_A_ (W)w, 1); |
2783 | ev_start (EV_A_ (W)w, 1); |
2053 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2784 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2785 | |
|
|
2786 | EV_FREQUENT_CHECK; |
2054 | } |
2787 | } |
2055 | |
2788 | |
2056 | void |
2789 | void |
2057 | ev_child_stop (EV_P_ ev_child *w) |
2790 | ev_child_stop (EV_P_ ev_child *w) |
2058 | { |
2791 | { |
2059 | clear_pending (EV_A_ (W)w); |
2792 | clear_pending (EV_A_ (W)w); |
2060 | if (expect_false (!ev_is_active (w))) |
2793 | if (expect_false (!ev_is_active (w))) |
2061 | return; |
2794 | return; |
2062 | |
2795 | |
|
|
2796 | EV_FREQUENT_CHECK; |
|
|
2797 | |
2063 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2798 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2064 | ev_stop (EV_A_ (W)w); |
2799 | ev_stop (EV_A_ (W)w); |
|
|
2800 | |
|
|
2801 | EV_FREQUENT_CHECK; |
2065 | } |
2802 | } |
2066 | |
2803 | |
2067 | #if EV_STAT_ENABLE |
2804 | #if EV_STAT_ENABLE |
2068 | |
2805 | |
2069 | # ifdef _WIN32 |
2806 | # ifdef _WIN32 |
2070 | # undef lstat |
2807 | # undef lstat |
2071 | # define lstat(a,b) _stati64 (a,b) |
2808 | # define lstat(a,b) _stati64 (a,b) |
2072 | # endif |
2809 | # endif |
2073 | |
2810 | |
2074 | #define DEF_STAT_INTERVAL 5.0074891 |
2811 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2812 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2075 | #define MIN_STAT_INTERVAL 0.1074891 |
2813 | #define MIN_STAT_INTERVAL 0.1074891 |
2076 | |
2814 | |
2077 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2815 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2078 | |
2816 | |
2079 | #if EV_USE_INOTIFY |
2817 | #if EV_USE_INOTIFY |
2080 | # define EV_INOTIFY_BUFSIZE 8192 |
2818 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2084 | { |
2822 | { |
2085 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2823 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2086 | |
2824 | |
2087 | if (w->wd < 0) |
2825 | if (w->wd < 0) |
2088 | { |
2826 | { |
|
|
2827 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2089 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2828 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2090 | |
2829 | |
2091 | /* monitor some parent directory for speedup hints */ |
2830 | /* monitor some parent directory for speedup hints */ |
|
|
2831 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2832 | /* but an efficiency issue only */ |
2092 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2833 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2093 | { |
2834 | { |
2094 | char path [4096]; |
2835 | char path [4096]; |
2095 | strcpy (path, w->path); |
2836 | strcpy (path, w->path); |
2096 | |
2837 | |
… | |
… | |
2099 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2840 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2100 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2841 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2101 | |
2842 | |
2102 | char *pend = strrchr (path, '/'); |
2843 | char *pend = strrchr (path, '/'); |
2103 | |
2844 | |
2104 | if (!pend) |
2845 | if (!pend || pend == path) |
2105 | break; /* whoops, no '/', complain to your admin */ |
2846 | break; |
2106 | |
2847 | |
2107 | *pend = 0; |
2848 | *pend = 0; |
2108 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2849 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2109 | } |
2850 | } |
2110 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2851 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2111 | } |
2852 | } |
2112 | } |
2853 | } |
2113 | else |
|
|
2114 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2115 | |
2854 | |
2116 | if (w->wd >= 0) |
2855 | if (w->wd >= 0) |
|
|
2856 | { |
2117 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2857 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2858 | |
|
|
2859 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2860 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2861 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2862 | struct statfs sfs; |
|
|
2863 | |
|
|
2864 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2865 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2866 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2867 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2868 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2869 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2870 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2871 | return; |
|
|
2872 | |
|
|
2873 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2874 | ev_timer_again (EV_A_ &w->timer); |
|
|
2875 | } |
2118 | } |
2876 | } |
2119 | |
2877 | |
2120 | static void noinline |
2878 | static void noinline |
2121 | infy_del (EV_P_ ev_stat *w) |
2879 | infy_del (EV_P_ ev_stat *w) |
2122 | { |
2880 | { |
… | |
… | |
2136 | |
2894 | |
2137 | static void noinline |
2895 | static void noinline |
2138 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2896 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2139 | { |
2897 | { |
2140 | if (slot < 0) |
2898 | if (slot < 0) |
2141 | /* overflow, need to check for all hahs slots */ |
2899 | /* overflow, need to check for all hash slots */ |
2142 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2900 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2143 | infy_wd (EV_A_ slot, wd, ev); |
2901 | infy_wd (EV_A_ slot, wd, ev); |
2144 | else |
2902 | else |
2145 | { |
2903 | { |
2146 | WL w_; |
2904 | WL w_; |
… | |
… | |
2152 | |
2910 | |
2153 | if (w->wd == wd || wd == -1) |
2911 | if (w->wd == wd || wd == -1) |
2154 | { |
2912 | { |
2155 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2913 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2156 | { |
2914 | { |
|
|
2915 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2157 | w->wd = -1; |
2916 | w->wd = -1; |
2158 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2917 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2159 | } |
2918 | } |
2160 | |
2919 | |
2161 | stat_timer_cb (EV_A_ &w->timer, 0); |
2920 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2174 | |
2933 | |
2175 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2934 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2176 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2935 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2177 | } |
2936 | } |
2178 | |
2937 | |
2179 | void inline_size |
2938 | inline_size void |
|
|
2939 | check_2625 (EV_P) |
|
|
2940 | { |
|
|
2941 | /* kernels < 2.6.25 are borked |
|
|
2942 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2943 | */ |
|
|
2944 | struct utsname buf; |
|
|
2945 | int major, minor, micro; |
|
|
2946 | |
|
|
2947 | if (uname (&buf)) |
|
|
2948 | return; |
|
|
2949 | |
|
|
2950 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2951 | return; |
|
|
2952 | |
|
|
2953 | if (major < 2 |
|
|
2954 | || (major == 2 && minor < 6) |
|
|
2955 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2956 | return; |
|
|
2957 | |
|
|
2958 | fs_2625 = 1; |
|
|
2959 | } |
|
|
2960 | |
|
|
2961 | inline_size void |
2180 | infy_init (EV_P) |
2962 | infy_init (EV_P) |
2181 | { |
2963 | { |
2182 | if (fs_fd != -2) |
2964 | if (fs_fd != -2) |
2183 | return; |
2965 | return; |
|
|
2966 | |
|
|
2967 | fs_fd = -1; |
|
|
2968 | |
|
|
2969 | check_2625 (EV_A); |
2184 | |
2970 | |
2185 | fs_fd = inotify_init (); |
2971 | fs_fd = inotify_init (); |
2186 | |
2972 | |
2187 | if (fs_fd >= 0) |
2973 | if (fs_fd >= 0) |
2188 | { |
2974 | { |
… | |
… | |
2190 | ev_set_priority (&fs_w, EV_MAXPRI); |
2976 | ev_set_priority (&fs_w, EV_MAXPRI); |
2191 | ev_io_start (EV_A_ &fs_w); |
2977 | ev_io_start (EV_A_ &fs_w); |
2192 | } |
2978 | } |
2193 | } |
2979 | } |
2194 | |
2980 | |
2195 | void inline_size |
2981 | inline_size void |
2196 | infy_fork (EV_P) |
2982 | infy_fork (EV_P) |
2197 | { |
2983 | { |
2198 | int slot; |
2984 | int slot; |
2199 | |
2985 | |
2200 | if (fs_fd < 0) |
2986 | if (fs_fd < 0) |
… | |
… | |
2216 | w->wd = -1; |
3002 | w->wd = -1; |
2217 | |
3003 | |
2218 | if (fs_fd >= 0) |
3004 | if (fs_fd >= 0) |
2219 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3005 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2220 | else |
3006 | else |
2221 | ev_timer_start (EV_A_ &w->timer); |
3007 | ev_timer_again (EV_A_ &w->timer); |
2222 | } |
3008 | } |
2223 | |
|
|
2224 | } |
3009 | } |
2225 | } |
3010 | } |
2226 | |
3011 | |
|
|
3012 | #endif |
|
|
3013 | |
|
|
3014 | #ifdef _WIN32 |
|
|
3015 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3016 | #else |
|
|
3017 | # define EV_LSTAT(p,b) lstat (p, b) |
2227 | #endif |
3018 | #endif |
2228 | |
3019 | |
2229 | void |
3020 | void |
2230 | ev_stat_stat (EV_P_ ev_stat *w) |
3021 | ev_stat_stat (EV_P_ ev_stat *w) |
2231 | { |
3022 | { |
… | |
… | |
2258 | || w->prev.st_atime != w->attr.st_atime |
3049 | || w->prev.st_atime != w->attr.st_atime |
2259 | || w->prev.st_mtime != w->attr.st_mtime |
3050 | || w->prev.st_mtime != w->attr.st_mtime |
2260 | || w->prev.st_ctime != w->attr.st_ctime |
3051 | || w->prev.st_ctime != w->attr.st_ctime |
2261 | ) { |
3052 | ) { |
2262 | #if EV_USE_INOTIFY |
3053 | #if EV_USE_INOTIFY |
|
|
3054 | if (fs_fd >= 0) |
|
|
3055 | { |
2263 | infy_del (EV_A_ w); |
3056 | infy_del (EV_A_ w); |
2264 | infy_add (EV_A_ w); |
3057 | infy_add (EV_A_ w); |
2265 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3058 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3059 | } |
2266 | #endif |
3060 | #endif |
2267 | |
3061 | |
2268 | ev_feed_event (EV_A_ w, EV_STAT); |
3062 | ev_feed_event (EV_A_ w, EV_STAT); |
2269 | } |
3063 | } |
2270 | } |
3064 | } |
… | |
… | |
2273 | ev_stat_start (EV_P_ ev_stat *w) |
3067 | ev_stat_start (EV_P_ ev_stat *w) |
2274 | { |
3068 | { |
2275 | if (expect_false (ev_is_active (w))) |
3069 | if (expect_false (ev_is_active (w))) |
2276 | return; |
3070 | return; |
2277 | |
3071 | |
2278 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2279 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2280 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2281 | |
|
|
2282 | ev_stat_stat (EV_A_ w); |
3072 | ev_stat_stat (EV_A_ w); |
2283 | |
3073 | |
|
|
3074 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2284 | if (w->interval < MIN_STAT_INTERVAL) |
3075 | w->interval = MIN_STAT_INTERVAL; |
2285 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2286 | |
3076 | |
2287 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3077 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2288 | ev_set_priority (&w->timer, ev_priority (w)); |
3078 | ev_set_priority (&w->timer, ev_priority (w)); |
2289 | |
3079 | |
2290 | #if EV_USE_INOTIFY |
3080 | #if EV_USE_INOTIFY |
2291 | infy_init (EV_A); |
3081 | infy_init (EV_A); |
2292 | |
3082 | |
2293 | if (fs_fd >= 0) |
3083 | if (fs_fd >= 0) |
2294 | infy_add (EV_A_ w); |
3084 | infy_add (EV_A_ w); |
2295 | else |
3085 | else |
2296 | #endif |
3086 | #endif |
2297 | ev_timer_start (EV_A_ &w->timer); |
3087 | ev_timer_again (EV_A_ &w->timer); |
2298 | |
3088 | |
2299 | ev_start (EV_A_ (W)w, 1); |
3089 | ev_start (EV_A_ (W)w, 1); |
|
|
3090 | |
|
|
3091 | EV_FREQUENT_CHECK; |
2300 | } |
3092 | } |
2301 | |
3093 | |
2302 | void |
3094 | void |
2303 | ev_stat_stop (EV_P_ ev_stat *w) |
3095 | ev_stat_stop (EV_P_ ev_stat *w) |
2304 | { |
3096 | { |
2305 | clear_pending (EV_A_ (W)w); |
3097 | clear_pending (EV_A_ (W)w); |
2306 | if (expect_false (!ev_is_active (w))) |
3098 | if (expect_false (!ev_is_active (w))) |
2307 | return; |
3099 | return; |
2308 | |
3100 | |
|
|
3101 | EV_FREQUENT_CHECK; |
|
|
3102 | |
2309 | #if EV_USE_INOTIFY |
3103 | #if EV_USE_INOTIFY |
2310 | infy_del (EV_A_ w); |
3104 | infy_del (EV_A_ w); |
2311 | #endif |
3105 | #endif |
2312 | ev_timer_stop (EV_A_ &w->timer); |
3106 | ev_timer_stop (EV_A_ &w->timer); |
2313 | |
3107 | |
2314 | ev_stop (EV_A_ (W)w); |
3108 | ev_stop (EV_A_ (W)w); |
|
|
3109 | |
|
|
3110 | EV_FREQUENT_CHECK; |
2315 | } |
3111 | } |
2316 | #endif |
3112 | #endif |
2317 | |
3113 | |
2318 | #if EV_IDLE_ENABLE |
3114 | #if EV_IDLE_ENABLE |
2319 | void |
3115 | void |
… | |
… | |
2321 | { |
3117 | { |
2322 | if (expect_false (ev_is_active (w))) |
3118 | if (expect_false (ev_is_active (w))) |
2323 | return; |
3119 | return; |
2324 | |
3120 | |
2325 | pri_adjust (EV_A_ (W)w); |
3121 | pri_adjust (EV_A_ (W)w); |
|
|
3122 | |
|
|
3123 | EV_FREQUENT_CHECK; |
2326 | |
3124 | |
2327 | { |
3125 | { |
2328 | int active = ++idlecnt [ABSPRI (w)]; |
3126 | int active = ++idlecnt [ABSPRI (w)]; |
2329 | |
3127 | |
2330 | ++idleall; |
3128 | ++idleall; |
2331 | ev_start (EV_A_ (W)w, active); |
3129 | ev_start (EV_A_ (W)w, active); |
2332 | |
3130 | |
2333 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3131 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2334 | idles [ABSPRI (w)][active - 1] = w; |
3132 | idles [ABSPRI (w)][active - 1] = w; |
2335 | } |
3133 | } |
|
|
3134 | |
|
|
3135 | EV_FREQUENT_CHECK; |
2336 | } |
3136 | } |
2337 | |
3137 | |
2338 | void |
3138 | void |
2339 | ev_idle_stop (EV_P_ ev_idle *w) |
3139 | ev_idle_stop (EV_P_ ev_idle *w) |
2340 | { |
3140 | { |
2341 | clear_pending (EV_A_ (W)w); |
3141 | clear_pending (EV_A_ (W)w); |
2342 | if (expect_false (!ev_is_active (w))) |
3142 | if (expect_false (!ev_is_active (w))) |
2343 | return; |
3143 | return; |
2344 | |
3144 | |
|
|
3145 | EV_FREQUENT_CHECK; |
|
|
3146 | |
2345 | { |
3147 | { |
2346 | int active = ((W)w)->active; |
3148 | int active = ev_active (w); |
2347 | |
3149 | |
2348 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3150 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2349 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3151 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2350 | |
3152 | |
2351 | ev_stop (EV_A_ (W)w); |
3153 | ev_stop (EV_A_ (W)w); |
2352 | --idleall; |
3154 | --idleall; |
2353 | } |
3155 | } |
|
|
3156 | |
|
|
3157 | EV_FREQUENT_CHECK; |
2354 | } |
3158 | } |
2355 | #endif |
3159 | #endif |
2356 | |
3160 | |
2357 | void |
3161 | void |
2358 | ev_prepare_start (EV_P_ ev_prepare *w) |
3162 | ev_prepare_start (EV_P_ ev_prepare *w) |
2359 | { |
3163 | { |
2360 | if (expect_false (ev_is_active (w))) |
3164 | if (expect_false (ev_is_active (w))) |
2361 | return; |
3165 | return; |
|
|
3166 | |
|
|
3167 | EV_FREQUENT_CHECK; |
2362 | |
3168 | |
2363 | ev_start (EV_A_ (W)w, ++preparecnt); |
3169 | ev_start (EV_A_ (W)w, ++preparecnt); |
2364 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3170 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2365 | prepares [preparecnt - 1] = w; |
3171 | prepares [preparecnt - 1] = w; |
|
|
3172 | |
|
|
3173 | EV_FREQUENT_CHECK; |
2366 | } |
3174 | } |
2367 | |
3175 | |
2368 | void |
3176 | void |
2369 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3177 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2370 | { |
3178 | { |
2371 | clear_pending (EV_A_ (W)w); |
3179 | clear_pending (EV_A_ (W)w); |
2372 | if (expect_false (!ev_is_active (w))) |
3180 | if (expect_false (!ev_is_active (w))) |
2373 | return; |
3181 | return; |
2374 | |
3182 | |
|
|
3183 | EV_FREQUENT_CHECK; |
|
|
3184 | |
2375 | { |
3185 | { |
2376 | int active = ((W)w)->active; |
3186 | int active = ev_active (w); |
|
|
3187 | |
2377 | prepares [active - 1] = prepares [--preparecnt]; |
3188 | prepares [active - 1] = prepares [--preparecnt]; |
2378 | ((W)prepares [active - 1])->active = active; |
3189 | ev_active (prepares [active - 1]) = active; |
2379 | } |
3190 | } |
2380 | |
3191 | |
2381 | ev_stop (EV_A_ (W)w); |
3192 | ev_stop (EV_A_ (W)w); |
|
|
3193 | |
|
|
3194 | EV_FREQUENT_CHECK; |
2382 | } |
3195 | } |
2383 | |
3196 | |
2384 | void |
3197 | void |
2385 | ev_check_start (EV_P_ ev_check *w) |
3198 | ev_check_start (EV_P_ ev_check *w) |
2386 | { |
3199 | { |
2387 | if (expect_false (ev_is_active (w))) |
3200 | if (expect_false (ev_is_active (w))) |
2388 | return; |
3201 | return; |
|
|
3202 | |
|
|
3203 | EV_FREQUENT_CHECK; |
2389 | |
3204 | |
2390 | ev_start (EV_A_ (W)w, ++checkcnt); |
3205 | ev_start (EV_A_ (W)w, ++checkcnt); |
2391 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3206 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2392 | checks [checkcnt - 1] = w; |
3207 | checks [checkcnt - 1] = w; |
|
|
3208 | |
|
|
3209 | EV_FREQUENT_CHECK; |
2393 | } |
3210 | } |
2394 | |
3211 | |
2395 | void |
3212 | void |
2396 | ev_check_stop (EV_P_ ev_check *w) |
3213 | ev_check_stop (EV_P_ ev_check *w) |
2397 | { |
3214 | { |
2398 | clear_pending (EV_A_ (W)w); |
3215 | clear_pending (EV_A_ (W)w); |
2399 | if (expect_false (!ev_is_active (w))) |
3216 | if (expect_false (!ev_is_active (w))) |
2400 | return; |
3217 | return; |
2401 | |
3218 | |
|
|
3219 | EV_FREQUENT_CHECK; |
|
|
3220 | |
2402 | { |
3221 | { |
2403 | int active = ((W)w)->active; |
3222 | int active = ev_active (w); |
|
|
3223 | |
2404 | checks [active - 1] = checks [--checkcnt]; |
3224 | checks [active - 1] = checks [--checkcnt]; |
2405 | ((W)checks [active - 1])->active = active; |
3225 | ev_active (checks [active - 1]) = active; |
2406 | } |
3226 | } |
2407 | |
3227 | |
2408 | ev_stop (EV_A_ (W)w); |
3228 | ev_stop (EV_A_ (W)w); |
|
|
3229 | |
|
|
3230 | EV_FREQUENT_CHECK; |
2409 | } |
3231 | } |
2410 | |
3232 | |
2411 | #if EV_EMBED_ENABLE |
3233 | #if EV_EMBED_ENABLE |
2412 | void noinline |
3234 | void noinline |
2413 | ev_embed_sweep (EV_P_ ev_embed *w) |
3235 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2430 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3252 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2431 | { |
3253 | { |
2432 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3254 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2433 | |
3255 | |
2434 | { |
3256 | { |
2435 | struct ev_loop *loop = w->other; |
3257 | EV_P = w->other; |
2436 | |
3258 | |
2437 | while (fdchangecnt) |
3259 | while (fdchangecnt) |
2438 | { |
3260 | { |
2439 | fd_reify (EV_A); |
3261 | fd_reify (EV_A); |
2440 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3262 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2441 | } |
3263 | } |
2442 | } |
3264 | } |
2443 | } |
3265 | } |
2444 | |
3266 | |
|
|
3267 | static void |
|
|
3268 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3269 | { |
|
|
3270 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3271 | |
|
|
3272 | ev_embed_stop (EV_A_ w); |
|
|
3273 | |
|
|
3274 | { |
|
|
3275 | EV_P = w->other; |
|
|
3276 | |
|
|
3277 | ev_loop_fork (EV_A); |
|
|
3278 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3279 | } |
|
|
3280 | |
|
|
3281 | ev_embed_start (EV_A_ w); |
|
|
3282 | } |
|
|
3283 | |
2445 | #if 0 |
3284 | #if 0 |
2446 | static void |
3285 | static void |
2447 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3286 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2448 | { |
3287 | { |
2449 | ev_idle_stop (EV_A_ idle); |
3288 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2455 | { |
3294 | { |
2456 | if (expect_false (ev_is_active (w))) |
3295 | if (expect_false (ev_is_active (w))) |
2457 | return; |
3296 | return; |
2458 | |
3297 | |
2459 | { |
3298 | { |
2460 | struct ev_loop *loop = w->other; |
3299 | EV_P = w->other; |
2461 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3300 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2462 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3301 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2463 | } |
3302 | } |
|
|
3303 | |
|
|
3304 | EV_FREQUENT_CHECK; |
2464 | |
3305 | |
2465 | ev_set_priority (&w->io, ev_priority (w)); |
3306 | ev_set_priority (&w->io, ev_priority (w)); |
2466 | ev_io_start (EV_A_ &w->io); |
3307 | ev_io_start (EV_A_ &w->io); |
2467 | |
3308 | |
2468 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3309 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2469 | ev_set_priority (&w->prepare, EV_MINPRI); |
3310 | ev_set_priority (&w->prepare, EV_MINPRI); |
2470 | ev_prepare_start (EV_A_ &w->prepare); |
3311 | ev_prepare_start (EV_A_ &w->prepare); |
2471 | |
3312 | |
|
|
3313 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3314 | ev_fork_start (EV_A_ &w->fork); |
|
|
3315 | |
2472 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3316 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2473 | |
3317 | |
2474 | ev_start (EV_A_ (W)w, 1); |
3318 | ev_start (EV_A_ (W)w, 1); |
|
|
3319 | |
|
|
3320 | EV_FREQUENT_CHECK; |
2475 | } |
3321 | } |
2476 | |
3322 | |
2477 | void |
3323 | void |
2478 | ev_embed_stop (EV_P_ ev_embed *w) |
3324 | ev_embed_stop (EV_P_ ev_embed *w) |
2479 | { |
3325 | { |
2480 | clear_pending (EV_A_ (W)w); |
3326 | clear_pending (EV_A_ (W)w); |
2481 | if (expect_false (!ev_is_active (w))) |
3327 | if (expect_false (!ev_is_active (w))) |
2482 | return; |
3328 | return; |
2483 | |
3329 | |
|
|
3330 | EV_FREQUENT_CHECK; |
|
|
3331 | |
2484 | ev_io_stop (EV_A_ &w->io); |
3332 | ev_io_stop (EV_A_ &w->io); |
2485 | ev_prepare_stop (EV_A_ &w->prepare); |
3333 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3334 | ev_fork_stop (EV_A_ &w->fork); |
2486 | |
3335 | |
2487 | ev_stop (EV_A_ (W)w); |
3336 | EV_FREQUENT_CHECK; |
2488 | } |
3337 | } |
2489 | #endif |
3338 | #endif |
2490 | |
3339 | |
2491 | #if EV_FORK_ENABLE |
3340 | #if EV_FORK_ENABLE |
2492 | void |
3341 | void |
2493 | ev_fork_start (EV_P_ ev_fork *w) |
3342 | ev_fork_start (EV_P_ ev_fork *w) |
2494 | { |
3343 | { |
2495 | if (expect_false (ev_is_active (w))) |
3344 | if (expect_false (ev_is_active (w))) |
2496 | return; |
3345 | return; |
|
|
3346 | |
|
|
3347 | EV_FREQUENT_CHECK; |
2497 | |
3348 | |
2498 | ev_start (EV_A_ (W)w, ++forkcnt); |
3349 | ev_start (EV_A_ (W)w, ++forkcnt); |
2499 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3350 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2500 | forks [forkcnt - 1] = w; |
3351 | forks [forkcnt - 1] = w; |
|
|
3352 | |
|
|
3353 | EV_FREQUENT_CHECK; |
2501 | } |
3354 | } |
2502 | |
3355 | |
2503 | void |
3356 | void |
2504 | ev_fork_stop (EV_P_ ev_fork *w) |
3357 | ev_fork_stop (EV_P_ ev_fork *w) |
2505 | { |
3358 | { |
2506 | clear_pending (EV_A_ (W)w); |
3359 | clear_pending (EV_A_ (W)w); |
2507 | if (expect_false (!ev_is_active (w))) |
3360 | if (expect_false (!ev_is_active (w))) |
2508 | return; |
3361 | return; |
2509 | |
3362 | |
|
|
3363 | EV_FREQUENT_CHECK; |
|
|
3364 | |
2510 | { |
3365 | { |
2511 | int active = ((W)w)->active; |
3366 | int active = ev_active (w); |
|
|
3367 | |
2512 | forks [active - 1] = forks [--forkcnt]; |
3368 | forks [active - 1] = forks [--forkcnt]; |
2513 | ((W)forks [active - 1])->active = active; |
3369 | ev_active (forks [active - 1]) = active; |
2514 | } |
3370 | } |
2515 | |
3371 | |
2516 | ev_stop (EV_A_ (W)w); |
3372 | ev_stop (EV_A_ (W)w); |
|
|
3373 | |
|
|
3374 | EV_FREQUENT_CHECK; |
2517 | } |
3375 | } |
2518 | #endif |
3376 | #endif |
2519 | |
3377 | |
2520 | #if EV_ASYNC_ENABLE |
3378 | #if EV_ASYNC_ENABLE |
2521 | void |
3379 | void |
… | |
… | |
2523 | { |
3381 | { |
2524 | if (expect_false (ev_is_active (w))) |
3382 | if (expect_false (ev_is_active (w))) |
2525 | return; |
3383 | return; |
2526 | |
3384 | |
2527 | evpipe_init (EV_A); |
3385 | evpipe_init (EV_A); |
|
|
3386 | |
|
|
3387 | EV_FREQUENT_CHECK; |
2528 | |
3388 | |
2529 | ev_start (EV_A_ (W)w, ++asynccnt); |
3389 | ev_start (EV_A_ (W)w, ++asynccnt); |
2530 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3390 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2531 | asyncs [asynccnt - 1] = w; |
3391 | asyncs [asynccnt - 1] = w; |
|
|
3392 | |
|
|
3393 | EV_FREQUENT_CHECK; |
2532 | } |
3394 | } |
2533 | |
3395 | |
2534 | void |
3396 | void |
2535 | ev_async_stop (EV_P_ ev_async *w) |
3397 | ev_async_stop (EV_P_ ev_async *w) |
2536 | { |
3398 | { |
2537 | clear_pending (EV_A_ (W)w); |
3399 | clear_pending (EV_A_ (W)w); |
2538 | if (expect_false (!ev_is_active (w))) |
3400 | if (expect_false (!ev_is_active (w))) |
2539 | return; |
3401 | return; |
2540 | |
3402 | |
|
|
3403 | EV_FREQUENT_CHECK; |
|
|
3404 | |
2541 | { |
3405 | { |
2542 | int active = ((W)w)->active; |
3406 | int active = ev_active (w); |
|
|
3407 | |
2543 | asyncs [active - 1] = asyncs [--asynccnt]; |
3408 | asyncs [active - 1] = asyncs [--asynccnt]; |
2544 | ((W)asyncs [active - 1])->active = active; |
3409 | ev_active (asyncs [active - 1]) = active; |
2545 | } |
3410 | } |
2546 | |
3411 | |
2547 | ev_stop (EV_A_ (W)w); |
3412 | ev_stop (EV_A_ (W)w); |
|
|
3413 | |
|
|
3414 | EV_FREQUENT_CHECK; |
2548 | } |
3415 | } |
2549 | |
3416 | |
2550 | void |
3417 | void |
2551 | ev_async_send (EV_P_ ev_async *w) |
3418 | ev_async_send (EV_P_ ev_async *w) |
2552 | { |
3419 | { |
… | |
… | |
2569 | once_cb (EV_P_ struct ev_once *once, int revents) |
3436 | once_cb (EV_P_ struct ev_once *once, int revents) |
2570 | { |
3437 | { |
2571 | void (*cb)(int revents, void *arg) = once->cb; |
3438 | void (*cb)(int revents, void *arg) = once->cb; |
2572 | void *arg = once->arg; |
3439 | void *arg = once->arg; |
2573 | |
3440 | |
2574 | ev_io_stop (EV_A_ &once->io); |
3441 | ev_io_stop (EV_A_ &once->io); |
2575 | ev_timer_stop (EV_A_ &once->to); |
3442 | ev_timer_stop (EV_A_ &once->to); |
2576 | ev_free (once); |
3443 | ev_free (once); |
2577 | |
3444 | |
2578 | cb (revents, arg); |
3445 | cb (revents, arg); |
2579 | } |
3446 | } |
2580 | |
3447 | |
2581 | static void |
3448 | static void |
2582 | once_cb_io (EV_P_ ev_io *w, int revents) |
3449 | once_cb_io (EV_P_ ev_io *w, int revents) |
2583 | { |
3450 | { |
2584 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3451 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3452 | |
|
|
3453 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2585 | } |
3454 | } |
2586 | |
3455 | |
2587 | static void |
3456 | static void |
2588 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3457 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2589 | { |
3458 | { |
2590 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3459 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3460 | |
|
|
3461 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2591 | } |
3462 | } |
2592 | |
3463 | |
2593 | void |
3464 | void |
2594 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3465 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2595 | { |
3466 | { |
… | |
… | |
2617 | ev_timer_set (&once->to, timeout, 0.); |
3488 | ev_timer_set (&once->to, timeout, 0.); |
2618 | ev_timer_start (EV_A_ &once->to); |
3489 | ev_timer_start (EV_A_ &once->to); |
2619 | } |
3490 | } |
2620 | } |
3491 | } |
2621 | |
3492 | |
|
|
3493 | /*****************************************************************************/ |
|
|
3494 | |
|
|
3495 | #if EV_WALK_ENABLE |
|
|
3496 | void |
|
|
3497 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3498 | { |
|
|
3499 | int i, j; |
|
|
3500 | ev_watcher_list *wl, *wn; |
|
|
3501 | |
|
|
3502 | if (types & (EV_IO | EV_EMBED)) |
|
|
3503 | for (i = 0; i < anfdmax; ++i) |
|
|
3504 | for (wl = anfds [i].head; wl; ) |
|
|
3505 | { |
|
|
3506 | wn = wl->next; |
|
|
3507 | |
|
|
3508 | #if EV_EMBED_ENABLE |
|
|
3509 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3510 | { |
|
|
3511 | if (types & EV_EMBED) |
|
|
3512 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3513 | } |
|
|
3514 | else |
|
|
3515 | #endif |
|
|
3516 | #if EV_USE_INOTIFY |
|
|
3517 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3518 | ; |
|
|
3519 | else |
|
|
3520 | #endif |
|
|
3521 | if ((ev_io *)wl != &pipe_w) |
|
|
3522 | if (types & EV_IO) |
|
|
3523 | cb (EV_A_ EV_IO, wl); |
|
|
3524 | |
|
|
3525 | wl = wn; |
|
|
3526 | } |
|
|
3527 | |
|
|
3528 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3529 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3530 | #if EV_STAT_ENABLE |
|
|
3531 | /*TODO: timer is not always active*/ |
|
|
3532 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3533 | { |
|
|
3534 | if (types & EV_STAT) |
|
|
3535 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3536 | } |
|
|
3537 | else |
|
|
3538 | #endif |
|
|
3539 | if (types & EV_TIMER) |
|
|
3540 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3541 | |
|
|
3542 | #if EV_PERIODIC_ENABLE |
|
|
3543 | if (types & EV_PERIODIC) |
|
|
3544 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3545 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3546 | #endif |
|
|
3547 | |
|
|
3548 | #if EV_IDLE_ENABLE |
|
|
3549 | if (types & EV_IDLE) |
|
|
3550 | for (j = NUMPRI; i--; ) |
|
|
3551 | for (i = idlecnt [j]; i--; ) |
|
|
3552 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3553 | #endif |
|
|
3554 | |
|
|
3555 | #if EV_FORK_ENABLE |
|
|
3556 | if (types & EV_FORK) |
|
|
3557 | for (i = forkcnt; i--; ) |
|
|
3558 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3559 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3560 | #endif |
|
|
3561 | |
|
|
3562 | #if EV_ASYNC_ENABLE |
|
|
3563 | if (types & EV_ASYNC) |
|
|
3564 | for (i = asynccnt; i--; ) |
|
|
3565 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3566 | #endif |
|
|
3567 | |
|
|
3568 | if (types & EV_PREPARE) |
|
|
3569 | for (i = preparecnt; i--; ) |
|
|
3570 | #if EV_EMBED_ENABLE |
|
|
3571 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3572 | #endif |
|
|
3573 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3574 | |
|
|
3575 | if (types & EV_CHECK) |
|
|
3576 | for (i = checkcnt; i--; ) |
|
|
3577 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3578 | |
|
|
3579 | if (types & EV_SIGNAL) |
|
|
3580 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3581 | for (wl = signals [i].head; wl; ) |
|
|
3582 | { |
|
|
3583 | wn = wl->next; |
|
|
3584 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3585 | wl = wn; |
|
|
3586 | } |
|
|
3587 | |
|
|
3588 | if (types & EV_CHILD) |
|
|
3589 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3590 | for (wl = childs [i]; wl; ) |
|
|
3591 | { |
|
|
3592 | wn = wl->next; |
|
|
3593 | cb (EV_A_ EV_CHILD, wl); |
|
|
3594 | wl = wn; |
|
|
3595 | } |
|
|
3596 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3597 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3598 | } |
|
|
3599 | #endif |
|
|
3600 | |
2622 | #if EV_MULTIPLICITY |
3601 | #if EV_MULTIPLICITY |
2623 | #include "ev_wrap.h" |
3602 | #include "ev_wrap.h" |
2624 | #endif |
3603 | #endif |
2625 | |
3604 | |
2626 | #ifdef __cplusplus |
3605 | #ifdef __cplusplus |