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 | |
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52 | # if HAVE_CLOCK_SYSCALL |
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53 | # ifndef EV_USE_CLOCK_SYSCALL |
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54 | # define EV_USE_CLOCK_SYSCALL 1 |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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64 | # endif |
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65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
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 |
… | |
… | |
164 | # endif |
186 | # endif |
165 | #endif |
187 | #endif |
166 | |
188 | |
167 | /* 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 */ |
168 | |
190 | |
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191 | /* try to deduce the maximum number of signals on this platform */ |
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192 | #if defined (EV_NSIG) |
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193 | /* use what's provided */ |
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194 | #elif defined (NSIG) |
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195 | # define EV_NSIG (NSIG) |
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196 | #elif defined(_NSIG) |
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197 | # define EV_NSIG (_NSIG) |
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198 | #elif defined (SIGMAX) |
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199 | # define EV_NSIG (SIGMAX+1) |
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200 | #elif defined (SIG_MAX) |
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201 | # define EV_NSIG (SIG_MAX+1) |
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202 | #elif defined (_SIG_MAX) |
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203 | # define EV_NSIG (_SIG_MAX+1) |
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204 | #elif defined (MAXSIG) |
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205 | # define EV_NSIG (MAXSIG+1) |
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206 | #elif defined (MAX_SIG) |
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207 | # define EV_NSIG (MAX_SIG+1) |
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208 | #elif defined (SIGARRAYSIZE) |
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209 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
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210 | #elif defined (_sys_nsig) |
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211 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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212 | #else |
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213 | # error "unable to find value for NSIG, please report" |
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214 | /* to make it compile regardless, just remove the above line */ |
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215 | # define EV_NSIG 64 |
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216 | #endif |
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217 | |
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218 | /* Default to some arbitrary number that's big enough to get most |
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219 | of the common signals. |
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220 | */ |
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221 | #ifndef NSIG |
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222 | # define NSIG 50 |
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223 | #endif |
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224 | /* <-- NSIG logic from Configure */ |
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225 | #ifndef EV_USE_CLOCK_SYSCALL |
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226 | # if __linux && __GLIBC__ >= 2 |
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227 | # define EV_USE_CLOCK_SYSCALL 1 |
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228 | # else |
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229 | # define EV_USE_CLOCK_SYSCALL 0 |
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230 | # endif |
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231 | #endif |
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232 | |
169 | #ifndef EV_USE_MONOTONIC |
233 | #ifndef EV_USE_MONOTONIC |
170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
234 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
171 | # define EV_USE_MONOTONIC 1 |
235 | # define EV_USE_MONOTONIC 1 |
172 | # else |
236 | # else |
173 | # define EV_USE_MONOTONIC 0 |
237 | # define EV_USE_MONOTONIC 0 |
174 | # endif |
238 | # endif |
175 | #endif |
239 | #endif |
176 | |
240 | |
177 | #ifndef EV_USE_REALTIME |
241 | #ifndef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
242 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
179 | #endif |
243 | #endif |
180 | |
244 | |
181 | #ifndef EV_USE_NANOSLEEP |
245 | #ifndef EV_USE_NANOSLEEP |
182 | # if _POSIX_C_SOURCE >= 199309L |
246 | # if _POSIX_C_SOURCE >= 199309L |
183 | # define EV_USE_NANOSLEEP 1 |
247 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
244 | # else |
308 | # else |
245 | # define EV_USE_EVENTFD 0 |
309 | # define EV_USE_EVENTFD 0 |
246 | # endif |
310 | # endif |
247 | #endif |
311 | #endif |
248 | |
312 | |
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313 | #ifndef EV_USE_SIGNALFD |
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314 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
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315 | # define EV_USE_SIGNALFD 1 |
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316 | # else |
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317 | # define EV_USE_SIGNALFD 0 |
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318 | # endif |
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319 | #endif |
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320 | |
249 | #if 0 /* debugging */ |
321 | #if 0 /* debugging */ |
250 | # define EV_VERIFY 3 |
322 | # define EV_VERIFY 3 |
251 | # define EV_USE_4HEAP 1 |
323 | # define EV_USE_4HEAP 1 |
252 | # define EV_HEAP_CACHE_AT 1 |
324 | # define EV_HEAP_CACHE_AT 1 |
253 | #endif |
325 | #endif |
… | |
… | |
262 | |
334 | |
263 | #ifndef EV_HEAP_CACHE_AT |
335 | #ifndef EV_HEAP_CACHE_AT |
264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
336 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
265 | #endif |
337 | #endif |
266 | |
338 | |
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339 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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340 | /* which makes programs even slower. might work on other unices, too. */ |
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341 | #if EV_USE_CLOCK_SYSCALL |
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342 | # include <syscall.h> |
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343 | # ifdef SYS_clock_gettime |
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344 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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345 | # undef EV_USE_MONOTONIC |
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346 | # define EV_USE_MONOTONIC 1 |
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347 | # else |
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348 | # undef EV_USE_CLOCK_SYSCALL |
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349 | # define EV_USE_CLOCK_SYSCALL 0 |
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350 | # endif |
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351 | #endif |
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352 | |
267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
353 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
268 | |
354 | |
269 | #ifndef CLOCK_MONOTONIC |
355 | #ifndef CLOCK_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
356 | # undef EV_USE_MONOTONIC |
271 | # define EV_USE_MONOTONIC 0 |
357 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
286 | # include <sys/select.h> |
372 | # include <sys/select.h> |
287 | # endif |
373 | # endif |
288 | #endif |
374 | #endif |
289 | |
375 | |
290 | #if EV_USE_INOTIFY |
376 | #if EV_USE_INOTIFY |
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|
377 | # include <sys/utsname.h> |
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378 | # include <sys/statfs.h> |
291 | # include <sys/inotify.h> |
379 | # include <sys/inotify.h> |
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380 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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381 | # ifndef IN_DONT_FOLLOW |
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382 | # undef EV_USE_INOTIFY |
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383 | # define EV_USE_INOTIFY 0 |
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384 | # endif |
292 | #endif |
385 | #endif |
293 | |
386 | |
294 | #if EV_SELECT_IS_WINSOCKET |
387 | #if EV_SELECT_IS_WINSOCKET |
295 | # include <winsock.h> |
388 | # include <winsock.h> |
296 | #endif |
389 | #endif |
297 | |
390 | |
298 | #if EV_USE_EVENTFD |
391 | #if EV_USE_EVENTFD |
299 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
392 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
300 | # include <stdint.h> |
393 | # include <stdint.h> |
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|
394 | # ifndef EFD_NONBLOCK |
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395 | # define EFD_NONBLOCK O_NONBLOCK |
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396 | # endif |
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397 | # ifndef EFD_CLOEXEC |
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398 | # define EFD_CLOEXEC O_CLOEXEC |
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399 | # endif |
301 | # ifdef __cplusplus |
400 | # ifdef __cplusplus |
302 | extern "C" { |
401 | extern "C" { |
303 | # endif |
402 | # endif |
304 | int eventfd (unsigned int initval, int flags); |
403 | int eventfd (unsigned int initval, int flags); |
305 | # ifdef __cplusplus |
404 | # ifdef __cplusplus |
306 | } |
405 | } |
307 | # endif |
406 | # endif |
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407 | #endif |
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408 | |
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409 | #if EV_USE_SIGNALFD |
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410 | # include <sys/signalfd.h> |
308 | #endif |
411 | #endif |
309 | |
412 | |
310 | /**/ |
413 | /**/ |
311 | |
414 | |
312 | #if EV_VERIFY >= 3 |
415 | #if EV_VERIFY >= 3 |
… | |
… | |
348 | # define inline_speed static noinline |
451 | # define inline_speed static noinline |
349 | #else |
452 | #else |
350 | # define inline_speed static inline |
453 | # define inline_speed static inline |
351 | #endif |
454 | #endif |
352 | |
455 | |
353 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
456 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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457 | |
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458 | #if EV_MINPRI == EV_MAXPRI |
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459 | # define ABSPRI(w) (((W)w), 0) |
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460 | #else |
354 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
461 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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462 | #endif |
355 | |
463 | |
356 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
464 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
357 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
465 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
358 | |
466 | |
359 | typedef ev_watcher *W; |
467 | typedef ev_watcher *W; |
… | |
… | |
361 | typedef ev_watcher_time *WT; |
469 | typedef ev_watcher_time *WT; |
362 | |
470 | |
363 | #define ev_active(w) ((W)(w))->active |
471 | #define ev_active(w) ((W)(w))->active |
364 | #define ev_at(w) ((WT)(w))->at |
472 | #define ev_at(w) ((WT)(w))->at |
365 | |
473 | |
366 | #if EV_USE_MONOTONIC |
474 | #if EV_USE_REALTIME |
367 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
475 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
368 | /* giving it a reasonably high chance of working on typical architetcures */ |
476 | /* giving it a reasonably high chance of working on typical architetcures */ |
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477 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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478 | #endif |
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479 | |
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480 | #if EV_USE_MONOTONIC |
369 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
481 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
370 | #endif |
482 | #endif |
371 | |
483 | |
372 | #ifdef _WIN32 |
484 | #ifdef _WIN32 |
373 | # include "ev_win32.c" |
485 | # include "ev_win32.c" |
… | |
… | |
382 | { |
494 | { |
383 | syserr_cb = cb; |
495 | syserr_cb = cb; |
384 | } |
496 | } |
385 | |
497 | |
386 | static void noinline |
498 | static void noinline |
387 | syserr (const char *msg) |
499 | ev_syserr (const char *msg) |
388 | { |
500 | { |
389 | if (!msg) |
501 | if (!msg) |
390 | msg = "(libev) system error"; |
502 | msg = "(libev) system error"; |
391 | |
503 | |
392 | if (syserr_cb) |
504 | if (syserr_cb) |
… | |
… | |
438 | #define ev_malloc(size) ev_realloc (0, (size)) |
550 | #define ev_malloc(size) ev_realloc (0, (size)) |
439 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
551 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
440 | |
552 | |
441 | /*****************************************************************************/ |
553 | /*****************************************************************************/ |
442 | |
554 | |
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555 | /* set in reify when reification needed */ |
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556 | #define EV_ANFD_REIFY 1 |
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557 | |
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558 | /* file descriptor info structure */ |
443 | typedef struct |
559 | typedef struct |
444 | { |
560 | { |
445 | WL head; |
561 | WL head; |
446 | unsigned char events; |
562 | unsigned char events; /* the events watched for */ |
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563 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
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564 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
447 | unsigned char reify; |
565 | unsigned char unused; |
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566 | #if EV_USE_EPOLL |
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567 | unsigned int egen; /* generation counter to counter epoll bugs */ |
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568 | #endif |
448 | #if EV_SELECT_IS_WINSOCKET |
569 | #if EV_SELECT_IS_WINSOCKET |
449 | SOCKET handle; |
570 | SOCKET handle; |
450 | #endif |
571 | #endif |
451 | } ANFD; |
572 | } ANFD; |
452 | |
573 | |
|
|
574 | /* stores the pending event set for a given watcher */ |
453 | typedef struct |
575 | typedef struct |
454 | { |
576 | { |
455 | W w; |
577 | W w; |
456 | int events; |
578 | int events; /* the pending event set for the given watcher */ |
457 | } ANPENDING; |
579 | } ANPENDING; |
458 | |
580 | |
459 | #if EV_USE_INOTIFY |
581 | #if EV_USE_INOTIFY |
460 | /* hash table entry per inotify-id */ |
582 | /* hash table entry per inotify-id */ |
461 | typedef struct |
583 | typedef struct |
… | |
… | |
464 | } ANFS; |
586 | } ANFS; |
465 | #endif |
587 | #endif |
466 | |
588 | |
467 | /* Heap Entry */ |
589 | /* Heap Entry */ |
468 | #if EV_HEAP_CACHE_AT |
590 | #if EV_HEAP_CACHE_AT |
|
|
591 | /* a heap element */ |
469 | typedef struct { |
592 | typedef struct { |
470 | ev_tstamp at; |
593 | ev_tstamp at; |
471 | WT w; |
594 | WT w; |
472 | } ANHE; |
595 | } ANHE; |
473 | |
596 | |
474 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
597 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
475 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
598 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
476 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
599 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
477 | #else |
600 | #else |
|
|
601 | /* a heap element */ |
478 | typedef WT ANHE; |
602 | typedef WT ANHE; |
479 | |
603 | |
480 | #define ANHE_w(he) (he) |
604 | #define ANHE_w(he) (he) |
481 | #define ANHE_at(he) (he)->at |
605 | #define ANHE_at(he) (he)->at |
482 | #define ANHE_at_cache(he) |
606 | #define ANHE_at_cache(he) |
… | |
… | |
506 | |
630 | |
507 | static int ev_default_loop_ptr; |
631 | static int ev_default_loop_ptr; |
508 | |
632 | |
509 | #endif |
633 | #endif |
510 | |
634 | |
|
|
635 | #if EV_MINIMAL < 2 |
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|
636 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
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637 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
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638 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
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|
639 | #else |
|
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640 | # define EV_RELEASE_CB (void)0 |
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641 | # define EV_ACQUIRE_CB (void)0 |
|
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642 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
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643 | #endif |
|
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644 | |
|
|
645 | #define EVUNLOOP_RECURSE 0x80 |
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646 | |
511 | /*****************************************************************************/ |
647 | /*****************************************************************************/ |
512 | |
648 | |
|
|
649 | #ifndef EV_HAVE_EV_TIME |
513 | ev_tstamp |
650 | ev_tstamp |
514 | ev_time (void) |
651 | ev_time (void) |
515 | { |
652 | { |
516 | #if EV_USE_REALTIME |
653 | #if EV_USE_REALTIME |
|
|
654 | if (expect_true (have_realtime)) |
|
|
655 | { |
517 | struct timespec ts; |
656 | struct timespec ts; |
518 | clock_gettime (CLOCK_REALTIME, &ts); |
657 | clock_gettime (CLOCK_REALTIME, &ts); |
519 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
658 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
520 | #else |
659 | } |
|
|
660 | #endif |
|
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661 | |
521 | struct timeval tv; |
662 | struct timeval tv; |
522 | gettimeofday (&tv, 0); |
663 | gettimeofday (&tv, 0); |
523 | return tv.tv_sec + tv.tv_usec * 1e-6; |
664 | return tv.tv_sec + tv.tv_usec * 1e-6; |
524 | #endif |
|
|
525 | } |
665 | } |
|
|
666 | #endif |
526 | |
667 | |
527 | ev_tstamp inline_size |
668 | inline_size ev_tstamp |
528 | get_clock (void) |
669 | get_clock (void) |
529 | { |
670 | { |
530 | #if EV_USE_MONOTONIC |
671 | #if EV_USE_MONOTONIC |
531 | if (expect_true (have_monotonic)) |
672 | if (expect_true (have_monotonic)) |
532 | { |
673 | { |
… | |
… | |
566 | |
707 | |
567 | tv.tv_sec = (time_t)delay; |
708 | tv.tv_sec = (time_t)delay; |
568 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
709 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
569 | |
710 | |
570 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
711 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
571 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
712 | /* something not guaranteed by newer posix versions, but guaranteed */ |
572 | /* by older ones */ |
713 | /* by older ones */ |
573 | select (0, 0, 0, 0, &tv); |
714 | select (0, 0, 0, 0, &tv); |
574 | #endif |
715 | #endif |
575 | } |
716 | } |
576 | } |
717 | } |
577 | |
718 | |
578 | /*****************************************************************************/ |
719 | /*****************************************************************************/ |
579 | |
720 | |
580 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
721 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
581 | |
722 | |
582 | int inline_size |
723 | /* find a suitable new size for the given array, */ |
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|
724 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
725 | inline_size int |
583 | array_nextsize (int elem, int cur, int cnt) |
726 | array_nextsize (int elem, int cur, int cnt) |
584 | { |
727 | { |
585 | int ncur = cur + 1; |
728 | int ncur = cur + 1; |
586 | |
729 | |
587 | do |
730 | do |
… | |
… | |
604 | array_realloc (int elem, void *base, int *cur, int cnt) |
747 | array_realloc (int elem, void *base, int *cur, int cnt) |
605 | { |
748 | { |
606 | *cur = array_nextsize (elem, *cur, cnt); |
749 | *cur = array_nextsize (elem, *cur, cnt); |
607 | return ev_realloc (base, elem * *cur); |
750 | return ev_realloc (base, elem * *cur); |
608 | } |
751 | } |
|
|
752 | |
|
|
753 | #define array_init_zero(base,count) \ |
|
|
754 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
609 | |
755 | |
610 | #define array_needsize(type,base,cur,cnt,init) \ |
756 | #define array_needsize(type,base,cur,cnt,init) \ |
611 | if (expect_false ((cnt) > (cur))) \ |
757 | if (expect_false ((cnt) > (cur))) \ |
612 | { \ |
758 | { \ |
613 | int ocur_ = (cur); \ |
759 | int ocur_ = (cur); \ |
… | |
… | |
625 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
771 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
626 | } |
772 | } |
627 | #endif |
773 | #endif |
628 | |
774 | |
629 | #define array_free(stem, idx) \ |
775 | #define array_free(stem, idx) \ |
630 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
776 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
631 | |
777 | |
632 | /*****************************************************************************/ |
778 | /*****************************************************************************/ |
|
|
779 | |
|
|
780 | /* dummy callback for pending events */ |
|
|
781 | static void noinline |
|
|
782 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
783 | { |
|
|
784 | } |
633 | |
785 | |
634 | void noinline |
786 | void noinline |
635 | ev_feed_event (EV_P_ void *w, int revents) |
787 | ev_feed_event (EV_P_ void *w, int revents) |
636 | { |
788 | { |
637 | W w_ = (W)w; |
789 | W w_ = (W)w; |
… | |
… | |
646 | pendings [pri][w_->pending - 1].w = w_; |
798 | pendings [pri][w_->pending - 1].w = w_; |
647 | pendings [pri][w_->pending - 1].events = revents; |
799 | pendings [pri][w_->pending - 1].events = revents; |
648 | } |
800 | } |
649 | } |
801 | } |
650 | |
802 | |
651 | void inline_speed |
803 | inline_speed void |
|
|
804 | feed_reverse (EV_P_ W w) |
|
|
805 | { |
|
|
806 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
807 | rfeeds [rfeedcnt++] = w; |
|
|
808 | } |
|
|
809 | |
|
|
810 | inline_size void |
|
|
811 | feed_reverse_done (EV_P_ int revents) |
|
|
812 | { |
|
|
813 | do |
|
|
814 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
815 | while (rfeedcnt); |
|
|
816 | } |
|
|
817 | |
|
|
818 | inline_speed void |
652 | queue_events (EV_P_ W *events, int eventcnt, int type) |
819 | queue_events (EV_P_ W *events, int eventcnt, int type) |
653 | { |
820 | { |
654 | int i; |
821 | int i; |
655 | |
822 | |
656 | for (i = 0; i < eventcnt; ++i) |
823 | for (i = 0; i < eventcnt; ++i) |
657 | ev_feed_event (EV_A_ events [i], type); |
824 | ev_feed_event (EV_A_ events [i], type); |
658 | } |
825 | } |
659 | |
826 | |
660 | /*****************************************************************************/ |
827 | /*****************************************************************************/ |
661 | |
828 | |
662 | void inline_size |
829 | inline_speed void |
663 | anfds_init (ANFD *base, int count) |
|
|
664 | { |
|
|
665 | while (count--) |
|
|
666 | { |
|
|
667 | base->head = 0; |
|
|
668 | base->events = EV_NONE; |
|
|
669 | base->reify = 0; |
|
|
670 | |
|
|
671 | ++base; |
|
|
672 | } |
|
|
673 | } |
|
|
674 | |
|
|
675 | void inline_speed |
|
|
676 | fd_event (EV_P_ int fd, int revents) |
830 | fd_event_nc (EV_P_ int fd, int revents) |
677 | { |
831 | { |
678 | ANFD *anfd = anfds + fd; |
832 | ANFD *anfd = anfds + fd; |
679 | ev_io *w; |
833 | ev_io *w; |
680 | |
834 | |
681 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
835 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
685 | if (ev) |
839 | if (ev) |
686 | ev_feed_event (EV_A_ (W)w, ev); |
840 | ev_feed_event (EV_A_ (W)w, ev); |
687 | } |
841 | } |
688 | } |
842 | } |
689 | |
843 | |
|
|
844 | /* do not submit kernel events for fds that have reify set */ |
|
|
845 | /* because that means they changed while we were polling for new events */ |
|
|
846 | inline_speed void |
|
|
847 | fd_event (EV_P_ int fd, int revents) |
|
|
848 | { |
|
|
849 | ANFD *anfd = anfds + fd; |
|
|
850 | |
|
|
851 | if (expect_true (!anfd->reify)) |
|
|
852 | fd_event_nc (EV_A_ fd, revents); |
|
|
853 | } |
|
|
854 | |
690 | void |
855 | void |
691 | ev_feed_fd_event (EV_P_ int fd, int revents) |
856 | ev_feed_fd_event (EV_P_ int fd, int revents) |
692 | { |
857 | { |
693 | if (fd >= 0 && fd < anfdmax) |
858 | if (fd >= 0 && fd < anfdmax) |
694 | fd_event (EV_A_ fd, revents); |
859 | fd_event_nc (EV_A_ fd, revents); |
695 | } |
860 | } |
696 | |
861 | |
697 | void inline_size |
862 | /* make sure the external fd watch events are in-sync */ |
|
|
863 | /* with the kernel/libev internal state */ |
|
|
864 | inline_size void |
698 | fd_reify (EV_P) |
865 | fd_reify (EV_P) |
699 | { |
866 | { |
700 | int i; |
867 | int i; |
701 | |
868 | |
702 | for (i = 0; i < fdchangecnt; ++i) |
869 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
717 | #ifdef EV_FD_TO_WIN32_HANDLE |
884 | #ifdef EV_FD_TO_WIN32_HANDLE |
718 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
885 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
719 | #else |
886 | #else |
720 | anfd->handle = _get_osfhandle (fd); |
887 | anfd->handle = _get_osfhandle (fd); |
721 | #endif |
888 | #endif |
722 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
889 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
723 | } |
890 | } |
724 | #endif |
891 | #endif |
725 | |
892 | |
726 | { |
893 | { |
727 | unsigned char o_events = anfd->events; |
894 | unsigned char o_events = anfd->events; |
728 | unsigned char o_reify = anfd->reify; |
895 | unsigned char o_reify = anfd->reify; |
729 | |
896 | |
730 | anfd->reify = 0; |
897 | anfd->reify = 0; |
731 | anfd->events = events; |
898 | anfd->events = events; |
732 | |
899 | |
733 | if (o_events != events || o_reify & EV_IOFDSET) |
900 | if (o_events != events || o_reify & EV__IOFDSET) |
734 | backend_modify (EV_A_ fd, o_events, events); |
901 | backend_modify (EV_A_ fd, o_events, events); |
735 | } |
902 | } |
736 | } |
903 | } |
737 | |
904 | |
738 | fdchangecnt = 0; |
905 | fdchangecnt = 0; |
739 | } |
906 | } |
740 | |
907 | |
741 | void inline_size |
908 | /* something about the given fd changed */ |
|
|
909 | inline_size void |
742 | fd_change (EV_P_ int fd, int flags) |
910 | fd_change (EV_P_ int fd, int flags) |
743 | { |
911 | { |
744 | unsigned char reify = anfds [fd].reify; |
912 | unsigned char reify = anfds [fd].reify; |
745 | anfds [fd].reify |= flags; |
913 | anfds [fd].reify |= flags; |
746 | |
914 | |
… | |
… | |
750 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
918 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
751 | fdchanges [fdchangecnt - 1] = fd; |
919 | fdchanges [fdchangecnt - 1] = fd; |
752 | } |
920 | } |
753 | } |
921 | } |
754 | |
922 | |
755 | void inline_speed |
923 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
924 | inline_speed void |
756 | fd_kill (EV_P_ int fd) |
925 | fd_kill (EV_P_ int fd) |
757 | { |
926 | { |
758 | ev_io *w; |
927 | ev_io *w; |
759 | |
928 | |
760 | while ((w = (ev_io *)anfds [fd].head)) |
929 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
762 | ev_io_stop (EV_A_ w); |
931 | ev_io_stop (EV_A_ w); |
763 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
932 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
764 | } |
933 | } |
765 | } |
934 | } |
766 | |
935 | |
767 | int inline_size |
936 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
937 | inline_size int |
768 | fd_valid (int fd) |
938 | fd_valid (int fd) |
769 | { |
939 | { |
770 | #ifdef _WIN32 |
940 | #ifdef _WIN32 |
771 | return _get_osfhandle (fd) != -1; |
941 | return _get_osfhandle (fd) != -1; |
772 | #else |
942 | #else |
… | |
… | |
808 | |
978 | |
809 | for (fd = 0; fd < anfdmax; ++fd) |
979 | for (fd = 0; fd < anfdmax; ++fd) |
810 | if (anfds [fd].events) |
980 | if (anfds [fd].events) |
811 | { |
981 | { |
812 | anfds [fd].events = 0; |
982 | anfds [fd].events = 0; |
|
|
983 | anfds [fd].emask = 0; |
813 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
984 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
814 | } |
985 | } |
815 | } |
986 | } |
816 | |
987 | |
817 | /*****************************************************************************/ |
988 | /*****************************************************************************/ |
818 | |
989 | |
… | |
… | |
834 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1005 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
835 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1006 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
836 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1007 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
837 | |
1008 | |
838 | /* away from the root */ |
1009 | /* away from the root */ |
839 | void inline_speed |
1010 | inline_speed void |
840 | downheap (ANHE *heap, int N, int k) |
1011 | downheap (ANHE *heap, int N, int k) |
841 | { |
1012 | { |
842 | ANHE he = heap [k]; |
1013 | ANHE he = heap [k]; |
843 | ANHE *E = heap + N + HEAP0; |
1014 | ANHE *E = heap + N + HEAP0; |
844 | |
1015 | |
… | |
… | |
884 | #define HEAP0 1 |
1055 | #define HEAP0 1 |
885 | #define HPARENT(k) ((k) >> 1) |
1056 | #define HPARENT(k) ((k) >> 1) |
886 | #define UPHEAP_DONE(p,k) (!(p)) |
1057 | #define UPHEAP_DONE(p,k) (!(p)) |
887 | |
1058 | |
888 | /* away from the root */ |
1059 | /* away from the root */ |
889 | void inline_speed |
1060 | inline_speed void |
890 | downheap (ANHE *heap, int N, int k) |
1061 | downheap (ANHE *heap, int N, int k) |
891 | { |
1062 | { |
892 | ANHE he = heap [k]; |
1063 | ANHE he = heap [k]; |
893 | |
1064 | |
894 | for (;;) |
1065 | for (;;) |
… | |
… | |
914 | ev_active (ANHE_w (he)) = k; |
1085 | ev_active (ANHE_w (he)) = k; |
915 | } |
1086 | } |
916 | #endif |
1087 | #endif |
917 | |
1088 | |
918 | /* towards the root */ |
1089 | /* towards the root */ |
919 | void inline_speed |
1090 | inline_speed void |
920 | upheap (ANHE *heap, int k) |
1091 | upheap (ANHE *heap, int k) |
921 | { |
1092 | { |
922 | ANHE he = heap [k]; |
1093 | ANHE he = heap [k]; |
923 | |
1094 | |
924 | for (;;) |
1095 | for (;;) |
… | |
… | |
935 | |
1106 | |
936 | heap [k] = he; |
1107 | heap [k] = he; |
937 | ev_active (ANHE_w (he)) = k; |
1108 | ev_active (ANHE_w (he)) = k; |
938 | } |
1109 | } |
939 | |
1110 | |
940 | void inline_size |
1111 | /* move an element suitably so it is in a correct place */ |
|
|
1112 | inline_size void |
941 | adjustheap (ANHE *heap, int N, int k) |
1113 | adjustheap (ANHE *heap, int N, int k) |
942 | { |
1114 | { |
943 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1115 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
944 | upheap (heap, k); |
1116 | upheap (heap, k); |
945 | else |
1117 | else |
946 | downheap (heap, N, k); |
1118 | downheap (heap, N, k); |
947 | } |
1119 | } |
948 | |
1120 | |
949 | /* rebuild the heap: this function is used only once and executed rarely */ |
1121 | /* rebuild the heap: this function is used only once and executed rarely */ |
950 | void inline_size |
1122 | inline_size void |
951 | reheap (ANHE *heap, int N) |
1123 | reheap (ANHE *heap, int N) |
952 | { |
1124 | { |
953 | int i; |
1125 | int i; |
954 | |
1126 | |
955 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1127 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
958 | upheap (heap, i + HEAP0); |
1130 | upheap (heap, i + HEAP0); |
959 | } |
1131 | } |
960 | |
1132 | |
961 | /*****************************************************************************/ |
1133 | /*****************************************************************************/ |
962 | |
1134 | |
|
|
1135 | /* associate signal watchers to a signal signal */ |
963 | typedef struct |
1136 | typedef struct |
964 | { |
1137 | { |
965 | WL head; |
1138 | WL head; |
966 | EV_ATOMIC_T gotsig; |
1139 | EV_ATOMIC_T gotsig; |
967 | } ANSIG; |
1140 | } ANSIG; |
… | |
… | |
969 | static ANSIG *signals; |
1142 | static ANSIG *signals; |
970 | static int signalmax; |
1143 | static int signalmax; |
971 | |
1144 | |
972 | static EV_ATOMIC_T gotsig; |
1145 | static EV_ATOMIC_T gotsig; |
973 | |
1146 | |
974 | void inline_size |
|
|
975 | signals_init (ANSIG *base, int count) |
|
|
976 | { |
|
|
977 | while (count--) |
|
|
978 | { |
|
|
979 | base->head = 0; |
|
|
980 | base->gotsig = 0; |
|
|
981 | |
|
|
982 | ++base; |
|
|
983 | } |
|
|
984 | } |
|
|
985 | |
|
|
986 | /*****************************************************************************/ |
1147 | /*****************************************************************************/ |
987 | |
1148 | |
988 | void inline_speed |
1149 | /* used to prepare libev internal fd's */ |
|
|
1150 | /* this is not fork-safe */ |
|
|
1151 | inline_speed void |
989 | fd_intern (int fd) |
1152 | fd_intern (int fd) |
990 | { |
1153 | { |
991 | #ifdef _WIN32 |
1154 | #ifdef _WIN32 |
992 | unsigned long arg = 1; |
1155 | unsigned long arg = 1; |
993 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1156 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
998 | } |
1161 | } |
999 | |
1162 | |
1000 | static void noinline |
1163 | static void noinline |
1001 | evpipe_init (EV_P) |
1164 | evpipe_init (EV_P) |
1002 | { |
1165 | { |
1003 | if (!ev_is_active (&pipeev)) |
1166 | if (!ev_is_active (&pipe_w)) |
1004 | { |
1167 | { |
1005 | #if EV_USE_EVENTFD |
1168 | #if EV_USE_EVENTFD |
|
|
1169 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1170 | if (evfd < 0 && errno == EINVAL) |
1006 | if ((evfd = eventfd (0, 0)) >= 0) |
1171 | evfd = eventfd (0, 0); |
|
|
1172 | |
|
|
1173 | if (evfd >= 0) |
1007 | { |
1174 | { |
1008 | evpipe [0] = -1; |
1175 | evpipe [0] = -1; |
1009 | fd_intern (evfd); |
1176 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1010 | ev_io_set (&pipeev, evfd, EV_READ); |
1177 | ev_io_set (&pipe_w, evfd, EV_READ); |
1011 | } |
1178 | } |
1012 | else |
1179 | else |
1013 | #endif |
1180 | #endif |
1014 | { |
1181 | { |
1015 | while (pipe (evpipe)) |
1182 | while (pipe (evpipe)) |
1016 | syserr ("(libev) error creating signal/async pipe"); |
1183 | ev_syserr ("(libev) error creating signal/async pipe"); |
1017 | |
1184 | |
1018 | fd_intern (evpipe [0]); |
1185 | fd_intern (evpipe [0]); |
1019 | fd_intern (evpipe [1]); |
1186 | fd_intern (evpipe [1]); |
1020 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1187 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1021 | } |
1188 | } |
1022 | |
1189 | |
1023 | ev_io_start (EV_A_ &pipeev); |
1190 | ev_io_start (EV_A_ &pipe_w); |
1024 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1191 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1025 | } |
1192 | } |
1026 | } |
1193 | } |
1027 | |
1194 | |
1028 | void inline_size |
1195 | inline_size void |
1029 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1196 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1030 | { |
1197 | { |
1031 | if (!*flag) |
1198 | if (!*flag) |
1032 | { |
1199 | { |
1033 | int old_errno = errno; /* save errno because write might clobber it */ |
1200 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1046 | |
1213 | |
1047 | errno = old_errno; |
1214 | errno = old_errno; |
1048 | } |
1215 | } |
1049 | } |
1216 | } |
1050 | |
1217 | |
|
|
1218 | /* called whenever the libev signal pipe */ |
|
|
1219 | /* got some events (signal, async) */ |
1051 | static void |
1220 | static void |
1052 | pipecb (EV_P_ ev_io *iow, int revents) |
1221 | pipecb (EV_P_ ev_io *iow, int revents) |
1053 | { |
1222 | { |
1054 | #if EV_USE_EVENTFD |
1223 | #if EV_USE_EVENTFD |
1055 | if (evfd >= 0) |
1224 | if (evfd >= 0) |
… | |
… | |
1111 | ev_feed_signal_event (EV_P_ int signum) |
1280 | ev_feed_signal_event (EV_P_ int signum) |
1112 | { |
1281 | { |
1113 | WL w; |
1282 | WL w; |
1114 | |
1283 | |
1115 | #if EV_MULTIPLICITY |
1284 | #if EV_MULTIPLICITY |
1116 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1285 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1117 | #endif |
1286 | #endif |
1118 | |
1287 | |
1119 | --signum; |
1288 | --signum; |
1120 | |
1289 | |
1121 | if (signum < 0 || signum >= signalmax) |
1290 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1125 | |
1294 | |
1126 | for (w = signals [signum].head; w; w = w->next) |
1295 | for (w = signals [signum].head; w; w = w->next) |
1127 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1296 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1128 | } |
1297 | } |
1129 | |
1298 | |
|
|
1299 | #if EV_USE_SIGNALFD |
|
|
1300 | static void |
|
|
1301 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1302 | { |
|
|
1303 | struct signalfd_siginfo si[4], *sip; |
|
|
1304 | |
|
|
1305 | for (;;) |
|
|
1306 | { |
|
|
1307 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1308 | |
|
|
1309 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1310 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1311 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1312 | |
|
|
1313 | if (res < (ssize_t)sizeof (si)) |
|
|
1314 | break; |
|
|
1315 | } |
|
|
1316 | } |
|
|
1317 | #endif |
|
|
1318 | |
1130 | /*****************************************************************************/ |
1319 | /*****************************************************************************/ |
1131 | |
1320 | |
1132 | static WL childs [EV_PID_HASHSIZE]; |
1321 | static WL childs [EV_PID_HASHSIZE]; |
1133 | |
1322 | |
1134 | #ifndef _WIN32 |
1323 | #ifndef _WIN32 |
… | |
… | |
1137 | |
1326 | |
1138 | #ifndef WIFCONTINUED |
1327 | #ifndef WIFCONTINUED |
1139 | # define WIFCONTINUED(status) 0 |
1328 | # define WIFCONTINUED(status) 0 |
1140 | #endif |
1329 | #endif |
1141 | |
1330 | |
1142 | void inline_speed |
1331 | /* handle a single child status event */ |
|
|
1332 | inline_speed void |
1143 | child_reap (EV_P_ int chain, int pid, int status) |
1333 | child_reap (EV_P_ int chain, int pid, int status) |
1144 | { |
1334 | { |
1145 | ev_child *w; |
1335 | ev_child *w; |
1146 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1336 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1147 | |
1337 | |
… | |
… | |
1160 | |
1350 | |
1161 | #ifndef WCONTINUED |
1351 | #ifndef WCONTINUED |
1162 | # define WCONTINUED 0 |
1352 | # define WCONTINUED 0 |
1163 | #endif |
1353 | #endif |
1164 | |
1354 | |
|
|
1355 | /* called on sigchld etc., calls waitpid */ |
1165 | static void |
1356 | static void |
1166 | childcb (EV_P_ ev_signal *sw, int revents) |
1357 | childcb (EV_P_ ev_signal *sw, int revents) |
1167 | { |
1358 | { |
1168 | int pid, status; |
1359 | int pid, status; |
1169 | |
1360 | |
… | |
… | |
1250 | /* kqueue is borked on everything but netbsd apparently */ |
1441 | /* kqueue is borked on everything but netbsd apparently */ |
1251 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1442 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1252 | flags &= ~EVBACKEND_KQUEUE; |
1443 | flags &= ~EVBACKEND_KQUEUE; |
1253 | #endif |
1444 | #endif |
1254 | #ifdef __APPLE__ |
1445 | #ifdef __APPLE__ |
1255 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1446 | /* only select works correctly on that "unix-certified" platform */ |
1256 | flags &= ~EVBACKEND_POLL; |
1447 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1448 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1257 | #endif |
1449 | #endif |
1258 | |
1450 | |
1259 | return flags; |
1451 | return flags; |
1260 | } |
1452 | } |
1261 | |
1453 | |
… | |
… | |
1275 | ev_backend (EV_P) |
1467 | ev_backend (EV_P) |
1276 | { |
1468 | { |
1277 | return backend; |
1469 | return backend; |
1278 | } |
1470 | } |
1279 | |
1471 | |
|
|
1472 | #if EV_MINIMAL < 2 |
1280 | unsigned int |
1473 | unsigned int |
1281 | ev_loop_count (EV_P) |
1474 | ev_loop_count (EV_P) |
1282 | { |
1475 | { |
1283 | return loop_count; |
1476 | return loop_count; |
1284 | } |
1477 | } |
1285 | |
1478 | |
|
|
1479 | unsigned int |
|
|
1480 | ev_loop_depth (EV_P) |
|
|
1481 | { |
|
|
1482 | return loop_depth; |
|
|
1483 | } |
|
|
1484 | |
1286 | void |
1485 | void |
1287 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1486 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1288 | { |
1487 | { |
1289 | io_blocktime = interval; |
1488 | io_blocktime = interval; |
1290 | } |
1489 | } |
… | |
… | |
1293 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1492 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1294 | { |
1493 | { |
1295 | timeout_blocktime = interval; |
1494 | timeout_blocktime = interval; |
1296 | } |
1495 | } |
1297 | |
1496 | |
|
|
1497 | void |
|
|
1498 | ev_set_userdata (EV_P_ void *data) |
|
|
1499 | { |
|
|
1500 | userdata = data; |
|
|
1501 | } |
|
|
1502 | |
|
|
1503 | void * |
|
|
1504 | ev_userdata (EV_P) |
|
|
1505 | { |
|
|
1506 | return userdata; |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1510 | { |
|
|
1511 | invoke_cb = invoke_pending_cb; |
|
|
1512 | } |
|
|
1513 | |
|
|
1514 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1515 | { |
|
|
1516 | release_cb = release; |
|
|
1517 | acquire_cb = acquire; |
|
|
1518 | } |
|
|
1519 | #endif |
|
|
1520 | |
|
|
1521 | /* initialise a loop structure, must be zero-initialised */ |
1298 | static void noinline |
1522 | static void noinline |
1299 | loop_init (EV_P_ unsigned int flags) |
1523 | loop_init (EV_P_ unsigned int flags) |
1300 | { |
1524 | { |
1301 | if (!backend) |
1525 | if (!backend) |
1302 | { |
1526 | { |
|
|
1527 | #if EV_USE_REALTIME |
|
|
1528 | if (!have_realtime) |
|
|
1529 | { |
|
|
1530 | struct timespec ts; |
|
|
1531 | |
|
|
1532 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1533 | have_realtime = 1; |
|
|
1534 | } |
|
|
1535 | #endif |
|
|
1536 | |
1303 | #if EV_USE_MONOTONIC |
1537 | #if EV_USE_MONOTONIC |
|
|
1538 | if (!have_monotonic) |
1304 | { |
1539 | { |
1305 | struct timespec ts; |
1540 | struct timespec ts; |
|
|
1541 | |
1306 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1542 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1307 | have_monotonic = 1; |
1543 | have_monotonic = 1; |
1308 | } |
1544 | } |
1309 | #endif |
1545 | #endif |
1310 | |
1546 | |
1311 | ev_rt_now = ev_time (); |
1547 | ev_rt_now = ev_time (); |
1312 | mn_now = get_clock (); |
1548 | mn_now = get_clock (); |
1313 | now_floor = mn_now; |
1549 | now_floor = mn_now; |
1314 | rtmn_diff = ev_rt_now - mn_now; |
1550 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1551 | #if EV_MINIMAL < 2 |
|
|
1552 | invoke_cb = ev_invoke_pending; |
|
|
1553 | #endif |
1315 | |
1554 | |
1316 | io_blocktime = 0.; |
1555 | io_blocktime = 0.; |
1317 | timeout_blocktime = 0.; |
1556 | timeout_blocktime = 0.; |
1318 | backend = 0; |
1557 | backend = 0; |
1319 | backend_fd = -1; |
1558 | backend_fd = -1; |
1320 | gotasync = 0; |
1559 | gotasync = 0; |
1321 | #if EV_USE_INOTIFY |
1560 | #if EV_USE_INOTIFY |
1322 | fs_fd = -2; |
1561 | fs_fd = -2; |
1323 | #endif |
1562 | #endif |
|
|
1563 | #if EV_USE_SIGNALFD |
|
|
1564 | sigfd = -2; |
|
|
1565 | #endif |
1324 | |
1566 | |
1325 | /* pid check not overridable via env */ |
1567 | /* pid check not overridable via env */ |
1326 | #ifndef _WIN32 |
1568 | #ifndef _WIN32 |
1327 | if (flags & EVFLAG_FORKCHECK) |
1569 | if (flags & EVFLAG_FORKCHECK) |
1328 | curpid = getpid (); |
1570 | curpid = getpid (); |
… | |
… | |
1350 | #endif |
1592 | #endif |
1351 | #if EV_USE_SELECT |
1593 | #if EV_USE_SELECT |
1352 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1594 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1353 | #endif |
1595 | #endif |
1354 | |
1596 | |
|
|
1597 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1598 | |
1355 | ev_init (&pipeev, pipecb); |
1599 | ev_init (&pipe_w, pipecb); |
1356 | ev_set_priority (&pipeev, EV_MAXPRI); |
1600 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1357 | } |
1601 | } |
1358 | } |
1602 | } |
1359 | |
1603 | |
|
|
1604 | /* free up a loop structure */ |
1360 | static void noinline |
1605 | static void noinline |
1361 | loop_destroy (EV_P) |
1606 | loop_destroy (EV_P) |
1362 | { |
1607 | { |
1363 | int i; |
1608 | int i; |
1364 | |
1609 | |
1365 | if (ev_is_active (&pipeev)) |
1610 | if (ev_is_active (&pipe_w)) |
1366 | { |
1611 | { |
1367 | ev_ref (EV_A); /* signal watcher */ |
1612 | /*ev_ref (EV_A);*/ |
1368 | ev_io_stop (EV_A_ &pipeev); |
1613 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1369 | |
1614 | |
1370 | #if EV_USE_EVENTFD |
1615 | #if EV_USE_EVENTFD |
1371 | if (evfd >= 0) |
1616 | if (evfd >= 0) |
1372 | close (evfd); |
1617 | close (evfd); |
1373 | #endif |
1618 | #endif |
… | |
… | |
1377 | close (evpipe [0]); |
1622 | close (evpipe [0]); |
1378 | close (evpipe [1]); |
1623 | close (evpipe [1]); |
1379 | } |
1624 | } |
1380 | } |
1625 | } |
1381 | |
1626 | |
|
|
1627 | #if EV_USE_SIGNALFD |
|
|
1628 | if (ev_is_active (&sigfd_w)) |
|
|
1629 | { |
|
|
1630 | /*ev_ref (EV_A);*/ |
|
|
1631 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1632 | |
|
|
1633 | close (sigfd); |
|
|
1634 | } |
|
|
1635 | #endif |
|
|
1636 | |
1382 | #if EV_USE_INOTIFY |
1637 | #if EV_USE_INOTIFY |
1383 | if (fs_fd >= 0) |
1638 | if (fs_fd >= 0) |
1384 | close (fs_fd); |
1639 | close (fs_fd); |
1385 | #endif |
1640 | #endif |
1386 | |
1641 | |
… | |
… | |
1409 | #if EV_IDLE_ENABLE |
1664 | #if EV_IDLE_ENABLE |
1410 | array_free (idle, [i]); |
1665 | array_free (idle, [i]); |
1411 | #endif |
1666 | #endif |
1412 | } |
1667 | } |
1413 | |
1668 | |
1414 | ev_free (anfds); anfdmax = 0; |
1669 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1415 | |
1670 | |
1416 | /* have to use the microsoft-never-gets-it-right macro */ |
1671 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1672 | array_free (rfeed, EMPTY); |
1417 | array_free (fdchange, EMPTY); |
1673 | array_free (fdchange, EMPTY); |
1418 | array_free (timer, EMPTY); |
1674 | array_free (timer, EMPTY); |
1419 | #if EV_PERIODIC_ENABLE |
1675 | #if EV_PERIODIC_ENABLE |
1420 | array_free (periodic, EMPTY); |
1676 | array_free (periodic, EMPTY); |
1421 | #endif |
1677 | #endif |
… | |
… | |
1430 | |
1686 | |
1431 | backend = 0; |
1687 | backend = 0; |
1432 | } |
1688 | } |
1433 | |
1689 | |
1434 | #if EV_USE_INOTIFY |
1690 | #if EV_USE_INOTIFY |
1435 | void inline_size infy_fork (EV_P); |
1691 | inline_size void infy_fork (EV_P); |
1436 | #endif |
1692 | #endif |
1437 | |
1693 | |
1438 | void inline_size |
1694 | inline_size void |
1439 | loop_fork (EV_P) |
1695 | loop_fork (EV_P) |
1440 | { |
1696 | { |
1441 | #if EV_USE_PORT |
1697 | #if EV_USE_PORT |
1442 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1698 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1443 | #endif |
1699 | #endif |
… | |
… | |
1449 | #endif |
1705 | #endif |
1450 | #if EV_USE_INOTIFY |
1706 | #if EV_USE_INOTIFY |
1451 | infy_fork (EV_A); |
1707 | infy_fork (EV_A); |
1452 | #endif |
1708 | #endif |
1453 | |
1709 | |
1454 | if (ev_is_active (&pipeev)) |
1710 | if (ev_is_active (&pipe_w)) |
1455 | { |
1711 | { |
1456 | /* this "locks" the handlers against writing to the pipe */ |
1712 | /* this "locks" the handlers against writing to the pipe */ |
1457 | /* while we modify the fd vars */ |
1713 | /* while we modify the fd vars */ |
1458 | gotsig = 1; |
1714 | gotsig = 1; |
1459 | #if EV_ASYNC_ENABLE |
1715 | #if EV_ASYNC_ENABLE |
1460 | gotasync = 1; |
1716 | gotasync = 1; |
1461 | #endif |
1717 | #endif |
1462 | |
1718 | |
1463 | ev_ref (EV_A); |
1719 | ev_ref (EV_A); |
1464 | ev_io_stop (EV_A_ &pipeev); |
1720 | ev_io_stop (EV_A_ &pipe_w); |
1465 | |
1721 | |
1466 | #if EV_USE_EVENTFD |
1722 | #if EV_USE_EVENTFD |
1467 | if (evfd >= 0) |
1723 | if (evfd >= 0) |
1468 | close (evfd); |
1724 | close (evfd); |
1469 | #endif |
1725 | #endif |
… | |
… | |
1474 | close (evpipe [1]); |
1730 | close (evpipe [1]); |
1475 | } |
1731 | } |
1476 | |
1732 | |
1477 | evpipe_init (EV_A); |
1733 | evpipe_init (EV_A); |
1478 | /* now iterate over everything, in case we missed something */ |
1734 | /* now iterate over everything, in case we missed something */ |
1479 | pipecb (EV_A_ &pipeev, EV_READ); |
1735 | pipecb (EV_A_ &pipe_w, EV_READ); |
1480 | } |
1736 | } |
1481 | |
1737 | |
1482 | postfork = 0; |
1738 | postfork = 0; |
1483 | } |
1739 | } |
1484 | |
1740 | |
… | |
… | |
1488 | ev_loop_new (unsigned int flags) |
1744 | ev_loop_new (unsigned int flags) |
1489 | { |
1745 | { |
1490 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1746 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1491 | |
1747 | |
1492 | memset (loop, 0, sizeof (struct ev_loop)); |
1748 | memset (loop, 0, sizeof (struct ev_loop)); |
1493 | |
|
|
1494 | loop_init (EV_A_ flags); |
1749 | loop_init (EV_A_ flags); |
1495 | |
1750 | |
1496 | if (ev_backend (EV_A)) |
1751 | if (ev_backend (EV_A)) |
1497 | return loop; |
1752 | return loop; |
1498 | |
1753 | |
… | |
… | |
1509 | void |
1764 | void |
1510 | ev_loop_fork (EV_P) |
1765 | ev_loop_fork (EV_P) |
1511 | { |
1766 | { |
1512 | postfork = 1; /* must be in line with ev_default_fork */ |
1767 | postfork = 1; /* must be in line with ev_default_fork */ |
1513 | } |
1768 | } |
|
|
1769 | #endif /* multiplicity */ |
1514 | |
1770 | |
1515 | #if EV_VERIFY |
1771 | #if EV_VERIFY |
1516 | static void noinline |
1772 | static void noinline |
1517 | verify_watcher (EV_P_ W w) |
1773 | verify_watcher (EV_P_ W w) |
1518 | { |
1774 | { |
1519 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1775 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1520 | |
1776 | |
1521 | if (w->pending) |
1777 | if (w->pending) |
1522 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1778 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1523 | } |
1779 | } |
1524 | |
1780 | |
1525 | static void noinline |
1781 | static void noinline |
1526 | verify_heap (EV_P_ ANHE *heap, int N) |
1782 | verify_heap (EV_P_ ANHE *heap, int N) |
1527 | { |
1783 | { |
1528 | int i; |
1784 | int i; |
1529 | |
1785 | |
1530 | for (i = HEAP0; i < N + HEAP0; ++i) |
1786 | for (i = HEAP0; i < N + HEAP0; ++i) |
1531 | { |
1787 | { |
1532 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1788 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
1533 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1789 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
1534 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1790 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
1535 | |
1791 | |
1536 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1792 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1537 | } |
1793 | } |
1538 | } |
1794 | } |
1539 | |
1795 | |
1540 | static void noinline |
1796 | static void noinline |
1541 | array_verify (EV_P_ W *ws, int cnt) |
1797 | array_verify (EV_P_ W *ws, int cnt) |
1542 | { |
1798 | { |
1543 | while (cnt--) |
1799 | while (cnt--) |
1544 | { |
1800 | { |
1545 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1801 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1546 | verify_watcher (EV_A_ ws [cnt]); |
1802 | verify_watcher (EV_A_ ws [cnt]); |
1547 | } |
1803 | } |
1548 | } |
1804 | } |
1549 | #endif |
1805 | #endif |
1550 | |
1806 | |
|
|
1807 | #if EV_MINIMAL < 2 |
1551 | void |
1808 | void |
1552 | ev_loop_verify (EV_P) |
1809 | ev_loop_verify (EV_P) |
1553 | { |
1810 | { |
1554 | #if EV_VERIFY |
1811 | #if EV_VERIFY |
1555 | int i; |
1812 | int i; |
… | |
… | |
1557 | |
1814 | |
1558 | assert (activecnt >= -1); |
1815 | assert (activecnt >= -1); |
1559 | |
1816 | |
1560 | assert (fdchangemax >= fdchangecnt); |
1817 | assert (fdchangemax >= fdchangecnt); |
1561 | for (i = 0; i < fdchangecnt; ++i) |
1818 | for (i = 0; i < fdchangecnt; ++i) |
1562 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
1819 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1563 | |
1820 | |
1564 | assert (anfdmax >= 0); |
1821 | assert (anfdmax >= 0); |
1565 | for (i = 0; i < anfdmax; ++i) |
1822 | for (i = 0; i < anfdmax; ++i) |
1566 | for (w = anfds [i].head; w; w = w->next) |
1823 | for (w = anfds [i].head; w; w = w->next) |
1567 | { |
1824 | { |
1568 | verify_watcher (EV_A_ (W)w); |
1825 | verify_watcher (EV_A_ (W)w); |
1569 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
1826 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1570 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1827 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1571 | } |
1828 | } |
1572 | |
1829 | |
1573 | assert (timermax >= timercnt); |
1830 | assert (timermax >= timercnt); |
1574 | verify_heap (EV_A_ timers, timercnt); |
1831 | verify_heap (EV_A_ timers, timercnt); |
1575 | |
1832 | |
… | |
… | |
1608 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1865 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1609 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1866 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1610 | # endif |
1867 | # endif |
1611 | #endif |
1868 | #endif |
1612 | } |
1869 | } |
1613 | |
1870 | #endif |
1614 | #endif /* multiplicity */ |
|
|
1615 | |
1871 | |
1616 | #if EV_MULTIPLICITY |
1872 | #if EV_MULTIPLICITY |
1617 | struct ev_loop * |
1873 | struct ev_loop * |
1618 | ev_default_loop_init (unsigned int flags) |
1874 | ev_default_loop_init (unsigned int flags) |
1619 | #else |
1875 | #else |
… | |
… | |
1652 | { |
1908 | { |
1653 | #if EV_MULTIPLICITY |
1909 | #if EV_MULTIPLICITY |
1654 | struct ev_loop *loop = ev_default_loop_ptr; |
1910 | struct ev_loop *loop = ev_default_loop_ptr; |
1655 | #endif |
1911 | #endif |
1656 | |
1912 | |
|
|
1913 | ev_default_loop_ptr = 0; |
|
|
1914 | |
1657 | #ifndef _WIN32 |
1915 | #ifndef _WIN32 |
1658 | ev_ref (EV_A); /* child watcher */ |
1916 | ev_ref (EV_A); /* child watcher */ |
1659 | ev_signal_stop (EV_A_ &childev); |
1917 | ev_signal_stop (EV_A_ &childev); |
1660 | #endif |
1918 | #endif |
1661 | |
1919 | |
… | |
… | |
1667 | { |
1925 | { |
1668 | #if EV_MULTIPLICITY |
1926 | #if EV_MULTIPLICITY |
1669 | struct ev_loop *loop = ev_default_loop_ptr; |
1927 | struct ev_loop *loop = ev_default_loop_ptr; |
1670 | #endif |
1928 | #endif |
1671 | |
1929 | |
1672 | if (backend) |
|
|
1673 | postfork = 1; /* must be in line with ev_loop_fork */ |
1930 | postfork = 1; /* must be in line with ev_loop_fork */ |
1674 | } |
1931 | } |
1675 | |
1932 | |
1676 | /*****************************************************************************/ |
1933 | /*****************************************************************************/ |
1677 | |
1934 | |
1678 | void |
1935 | void |
1679 | ev_invoke (EV_P_ void *w, int revents) |
1936 | ev_invoke (EV_P_ void *w, int revents) |
1680 | { |
1937 | { |
1681 | EV_CB_INVOKE ((W)w, revents); |
1938 | EV_CB_INVOKE ((W)w, revents); |
1682 | } |
1939 | } |
1683 | |
1940 | |
1684 | void inline_speed |
1941 | unsigned int |
1685 | call_pending (EV_P) |
1942 | ev_pending_count (EV_P) |
|
|
1943 | { |
|
|
1944 | int pri; |
|
|
1945 | unsigned int count = 0; |
|
|
1946 | |
|
|
1947 | for (pri = NUMPRI; pri--; ) |
|
|
1948 | count += pendingcnt [pri]; |
|
|
1949 | |
|
|
1950 | return count; |
|
|
1951 | } |
|
|
1952 | |
|
|
1953 | void noinline |
|
|
1954 | ev_invoke_pending (EV_P) |
1686 | { |
1955 | { |
1687 | int pri; |
1956 | int pri; |
1688 | |
1957 | |
1689 | for (pri = NUMPRI; pri--; ) |
1958 | for (pri = NUMPRI; pri--; ) |
1690 | while (pendingcnt [pri]) |
1959 | while (pendingcnt [pri]) |
1691 | { |
1960 | { |
1692 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1961 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1693 | |
1962 | |
1694 | if (expect_true (p->w)) |
|
|
1695 | { |
|
|
1696 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1963 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1964 | /* ^ this is no longer true, as pending_w could be here */ |
1697 | |
1965 | |
1698 | p->w->pending = 0; |
1966 | p->w->pending = 0; |
1699 | EV_CB_INVOKE (p->w, p->events); |
1967 | EV_CB_INVOKE (p->w, p->events); |
1700 | EV_FREQUENT_CHECK; |
1968 | EV_FREQUENT_CHECK; |
1701 | } |
|
|
1702 | } |
1969 | } |
1703 | } |
1970 | } |
1704 | |
1971 | |
1705 | #if EV_IDLE_ENABLE |
1972 | #if EV_IDLE_ENABLE |
1706 | void inline_size |
1973 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1974 | /* only when higher priorities are idle" logic */ |
|
|
1975 | inline_size void |
1707 | idle_reify (EV_P) |
1976 | idle_reify (EV_P) |
1708 | { |
1977 | { |
1709 | if (expect_false (idleall)) |
1978 | if (expect_false (idleall)) |
1710 | { |
1979 | { |
1711 | int pri; |
1980 | int pri; |
… | |
… | |
1723 | } |
1992 | } |
1724 | } |
1993 | } |
1725 | } |
1994 | } |
1726 | #endif |
1995 | #endif |
1727 | |
1996 | |
1728 | void inline_size |
1997 | /* make timers pending */ |
|
|
1998 | inline_size void |
1729 | timers_reify (EV_P) |
1999 | timers_reify (EV_P) |
1730 | { |
2000 | { |
1731 | EV_FREQUENT_CHECK; |
2001 | EV_FREQUENT_CHECK; |
1732 | |
2002 | |
1733 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2003 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1734 | { |
2004 | { |
1735 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2005 | do |
1736 | |
|
|
1737 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1738 | |
|
|
1739 | /* first reschedule or stop timer */ |
|
|
1740 | if (w->repeat) |
|
|
1741 | { |
2006 | { |
|
|
2007 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2008 | |
|
|
2009 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2010 | |
|
|
2011 | /* first reschedule or stop timer */ |
|
|
2012 | if (w->repeat) |
|
|
2013 | { |
1742 | ev_at (w) += w->repeat; |
2014 | ev_at (w) += w->repeat; |
1743 | if (ev_at (w) < mn_now) |
2015 | if (ev_at (w) < mn_now) |
1744 | ev_at (w) = mn_now; |
2016 | ev_at (w) = mn_now; |
1745 | |
2017 | |
1746 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2018 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1747 | |
2019 | |
1748 | ANHE_at_cache (timers [HEAP0]); |
2020 | ANHE_at_cache (timers [HEAP0]); |
1749 | downheap (timers, timercnt, HEAP0); |
2021 | downheap (timers, timercnt, HEAP0); |
|
|
2022 | } |
|
|
2023 | else |
|
|
2024 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2025 | |
|
|
2026 | EV_FREQUENT_CHECK; |
|
|
2027 | feed_reverse (EV_A_ (W)w); |
1750 | } |
2028 | } |
1751 | else |
2029 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1752 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1753 | |
2030 | |
1754 | EV_FREQUENT_CHECK; |
|
|
1755 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2031 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1756 | } |
2032 | } |
1757 | } |
2033 | } |
1758 | |
2034 | |
1759 | #if EV_PERIODIC_ENABLE |
2035 | #if EV_PERIODIC_ENABLE |
1760 | void inline_size |
2036 | /* make periodics pending */ |
|
|
2037 | inline_size void |
1761 | periodics_reify (EV_P) |
2038 | periodics_reify (EV_P) |
1762 | { |
2039 | { |
1763 | EV_FREQUENT_CHECK; |
2040 | EV_FREQUENT_CHECK; |
1764 | |
2041 | |
1765 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2042 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1766 | { |
2043 | { |
1767 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2044 | int feed_count = 0; |
1768 | |
2045 | |
1769 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2046 | do |
1770 | |
|
|
1771 | /* first reschedule or stop timer */ |
|
|
1772 | if (w->reschedule_cb) |
|
|
1773 | { |
2047 | { |
|
|
2048 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2049 | |
|
|
2050 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2051 | |
|
|
2052 | /* first reschedule or stop timer */ |
|
|
2053 | if (w->reschedule_cb) |
|
|
2054 | { |
1774 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2055 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1775 | |
2056 | |
1776 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2057 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1777 | |
2058 | |
1778 | ANHE_at_cache (periodics [HEAP0]); |
2059 | ANHE_at_cache (periodics [HEAP0]); |
1779 | downheap (periodics, periodiccnt, HEAP0); |
2060 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2061 | } |
|
|
2062 | else if (w->interval) |
|
|
2063 | { |
|
|
2064 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2065 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2066 | /* this might happen because of floating point inexactness */ |
|
|
2067 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2068 | { |
|
|
2069 | ev_at (w) += w->interval; |
|
|
2070 | |
|
|
2071 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2072 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2073 | /* has effectively asked to get triggered more often than possible */ |
|
|
2074 | if (ev_at (w) < ev_rt_now) |
|
|
2075 | ev_at (w) = ev_rt_now; |
|
|
2076 | } |
|
|
2077 | |
|
|
2078 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2079 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2080 | } |
|
|
2081 | else |
|
|
2082 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2083 | |
|
|
2084 | EV_FREQUENT_CHECK; |
|
|
2085 | feed_reverse (EV_A_ (W)w); |
1780 | } |
2086 | } |
1781 | else if (w->interval) |
2087 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1782 | { |
|
|
1783 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1784 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1785 | /* this might happen because of floating point inexactness */ |
|
|
1786 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1787 | { |
|
|
1788 | ev_at (w) += w->interval; |
|
|
1789 | |
2088 | |
1790 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1791 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1792 | /* has effectively asked to get triggered more often than possible */ |
|
|
1793 | if (ev_at (w) < ev_rt_now) |
|
|
1794 | ev_at (w) = ev_rt_now; |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1798 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1799 | } |
|
|
1800 | else |
|
|
1801 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1802 | |
|
|
1803 | EV_FREQUENT_CHECK; |
|
|
1804 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2089 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1805 | } |
2090 | } |
1806 | } |
2091 | } |
1807 | |
2092 | |
|
|
2093 | /* simply recalculate all periodics */ |
|
|
2094 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1808 | static void noinline |
2095 | static void noinline |
1809 | periodics_reschedule (EV_P) |
2096 | periodics_reschedule (EV_P) |
1810 | { |
2097 | { |
1811 | int i; |
2098 | int i; |
1812 | |
2099 | |
… | |
… | |
1825 | |
2112 | |
1826 | reheap (periodics, periodiccnt); |
2113 | reheap (periodics, periodiccnt); |
1827 | } |
2114 | } |
1828 | #endif |
2115 | #endif |
1829 | |
2116 | |
1830 | void inline_speed |
2117 | /* adjust all timers by a given offset */ |
|
|
2118 | static void noinline |
|
|
2119 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2120 | { |
|
|
2121 | int i; |
|
|
2122 | |
|
|
2123 | for (i = 0; i < timercnt; ++i) |
|
|
2124 | { |
|
|
2125 | ANHE *he = timers + i + HEAP0; |
|
|
2126 | ANHE_w (*he)->at += adjust; |
|
|
2127 | ANHE_at_cache (*he); |
|
|
2128 | } |
|
|
2129 | } |
|
|
2130 | |
|
|
2131 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2132 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
2133 | inline_speed void |
1831 | time_update (EV_P_ ev_tstamp max_block) |
2134 | time_update (EV_P_ ev_tstamp max_block) |
1832 | { |
2135 | { |
1833 | int i; |
|
|
1834 | |
|
|
1835 | #if EV_USE_MONOTONIC |
2136 | #if EV_USE_MONOTONIC |
1836 | if (expect_true (have_monotonic)) |
2137 | if (expect_true (have_monotonic)) |
1837 | { |
2138 | { |
|
|
2139 | int i; |
1838 | ev_tstamp odiff = rtmn_diff; |
2140 | ev_tstamp odiff = rtmn_diff; |
1839 | |
2141 | |
1840 | mn_now = get_clock (); |
2142 | mn_now = get_clock (); |
1841 | |
2143 | |
1842 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2144 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1868 | ev_rt_now = ev_time (); |
2170 | ev_rt_now = ev_time (); |
1869 | mn_now = get_clock (); |
2171 | mn_now = get_clock (); |
1870 | now_floor = mn_now; |
2172 | now_floor = mn_now; |
1871 | } |
2173 | } |
1872 | |
2174 | |
|
|
2175 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2176 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1873 | # if EV_PERIODIC_ENABLE |
2177 | # if EV_PERIODIC_ENABLE |
1874 | periodics_reschedule (EV_A); |
2178 | periodics_reschedule (EV_A); |
1875 | # endif |
2179 | # endif |
1876 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1877 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1878 | } |
2180 | } |
1879 | else |
2181 | else |
1880 | #endif |
2182 | #endif |
1881 | { |
2183 | { |
1882 | ev_rt_now = ev_time (); |
2184 | ev_rt_now = ev_time (); |
1883 | |
2185 | |
1884 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2186 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1885 | { |
2187 | { |
|
|
2188 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2189 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1886 | #if EV_PERIODIC_ENABLE |
2190 | #if EV_PERIODIC_ENABLE |
1887 | periodics_reschedule (EV_A); |
2191 | periodics_reschedule (EV_A); |
1888 | #endif |
2192 | #endif |
1889 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1890 | for (i = 0; i < timercnt; ++i) |
|
|
1891 | { |
|
|
1892 | ANHE *he = timers + i + HEAP0; |
|
|
1893 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1894 | ANHE_at_cache (*he); |
|
|
1895 | } |
|
|
1896 | } |
2193 | } |
1897 | |
2194 | |
1898 | mn_now = ev_rt_now; |
2195 | mn_now = ev_rt_now; |
1899 | } |
2196 | } |
1900 | } |
2197 | } |
1901 | |
2198 | |
1902 | void |
2199 | void |
1903 | ev_ref (EV_P) |
|
|
1904 | { |
|
|
1905 | ++activecnt; |
|
|
1906 | } |
|
|
1907 | |
|
|
1908 | void |
|
|
1909 | ev_unref (EV_P) |
|
|
1910 | { |
|
|
1911 | --activecnt; |
|
|
1912 | } |
|
|
1913 | |
|
|
1914 | void |
|
|
1915 | ev_now_update (EV_P) |
|
|
1916 | { |
|
|
1917 | time_update (EV_A_ 1e100); |
|
|
1918 | } |
|
|
1919 | |
|
|
1920 | static int loop_done; |
|
|
1921 | |
|
|
1922 | void |
|
|
1923 | ev_loop (EV_P_ int flags) |
2200 | ev_loop (EV_P_ int flags) |
1924 | { |
2201 | { |
|
|
2202 | #if EV_MINIMAL < 2 |
|
|
2203 | ++loop_depth; |
|
|
2204 | #endif |
|
|
2205 | |
|
|
2206 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2207 | |
1925 | loop_done = EVUNLOOP_CANCEL; |
2208 | loop_done = EVUNLOOP_CANCEL; |
1926 | |
2209 | |
1927 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2210 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1928 | |
2211 | |
1929 | do |
2212 | do |
1930 | { |
2213 | { |
1931 | #if EV_VERIFY >= 2 |
2214 | #if EV_VERIFY >= 2 |
1932 | ev_loop_verify (EV_A); |
2215 | ev_loop_verify (EV_A); |
… | |
… | |
1945 | /* we might have forked, so queue fork handlers */ |
2228 | /* we might have forked, so queue fork handlers */ |
1946 | if (expect_false (postfork)) |
2229 | if (expect_false (postfork)) |
1947 | if (forkcnt) |
2230 | if (forkcnt) |
1948 | { |
2231 | { |
1949 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2232 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1950 | call_pending (EV_A); |
2233 | EV_INVOKE_PENDING; |
1951 | } |
2234 | } |
1952 | #endif |
2235 | #endif |
1953 | |
2236 | |
1954 | /* queue prepare watchers (and execute them) */ |
2237 | /* queue prepare watchers (and execute them) */ |
1955 | if (expect_false (preparecnt)) |
2238 | if (expect_false (preparecnt)) |
1956 | { |
2239 | { |
1957 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2240 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1958 | call_pending (EV_A); |
2241 | EV_INVOKE_PENDING; |
1959 | } |
2242 | } |
1960 | |
2243 | |
1961 | if (expect_false (!activecnt)) |
2244 | if (expect_false (loop_done)) |
1962 | break; |
2245 | break; |
1963 | |
2246 | |
1964 | /* we might have forked, so reify kernel state if necessary */ |
2247 | /* we might have forked, so reify kernel state if necessary */ |
1965 | if (expect_false (postfork)) |
2248 | if (expect_false (postfork)) |
1966 | loop_fork (EV_A); |
2249 | loop_fork (EV_A); |
… | |
… | |
1973 | ev_tstamp waittime = 0.; |
2256 | ev_tstamp waittime = 0.; |
1974 | ev_tstamp sleeptime = 0.; |
2257 | ev_tstamp sleeptime = 0.; |
1975 | |
2258 | |
1976 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2259 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1977 | { |
2260 | { |
|
|
2261 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2262 | ev_tstamp prev_mn_now = mn_now; |
|
|
2263 | |
1978 | /* update time to cancel out callback processing overhead */ |
2264 | /* update time to cancel out callback processing overhead */ |
1979 | time_update (EV_A_ 1e100); |
2265 | time_update (EV_A_ 1e100); |
1980 | |
2266 | |
1981 | waittime = MAX_BLOCKTIME; |
2267 | waittime = MAX_BLOCKTIME; |
1982 | |
2268 | |
… | |
… | |
1992 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2278 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1993 | if (waittime > to) waittime = to; |
2279 | if (waittime > to) waittime = to; |
1994 | } |
2280 | } |
1995 | #endif |
2281 | #endif |
1996 | |
2282 | |
|
|
2283 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1997 | if (expect_false (waittime < timeout_blocktime)) |
2284 | if (expect_false (waittime < timeout_blocktime)) |
1998 | waittime = timeout_blocktime; |
2285 | waittime = timeout_blocktime; |
1999 | |
2286 | |
2000 | sleeptime = waittime - backend_fudge; |
2287 | /* extra check because io_blocktime is commonly 0 */ |
2001 | |
|
|
2002 | if (expect_true (sleeptime > io_blocktime)) |
2288 | if (expect_false (io_blocktime)) |
2003 | sleeptime = io_blocktime; |
|
|
2004 | |
|
|
2005 | if (sleeptime) |
|
|
2006 | { |
2289 | { |
|
|
2290 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2291 | |
|
|
2292 | if (sleeptime > waittime - backend_fudge) |
|
|
2293 | sleeptime = waittime - backend_fudge; |
|
|
2294 | |
|
|
2295 | if (expect_true (sleeptime > 0.)) |
|
|
2296 | { |
2007 | ev_sleep (sleeptime); |
2297 | ev_sleep (sleeptime); |
2008 | waittime -= sleeptime; |
2298 | waittime -= sleeptime; |
|
|
2299 | } |
2009 | } |
2300 | } |
2010 | } |
2301 | } |
2011 | |
2302 | |
|
|
2303 | #if EV_MINIMAL < 2 |
2012 | ++loop_count; |
2304 | ++loop_count; |
|
|
2305 | #endif |
|
|
2306 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2013 | backend_poll (EV_A_ waittime); |
2307 | backend_poll (EV_A_ waittime); |
|
|
2308 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2014 | |
2309 | |
2015 | /* update ev_rt_now, do magic */ |
2310 | /* update ev_rt_now, do magic */ |
2016 | time_update (EV_A_ waittime + sleeptime); |
2311 | time_update (EV_A_ waittime + sleeptime); |
2017 | } |
2312 | } |
2018 | |
2313 | |
… | |
… | |
2029 | |
2324 | |
2030 | /* queue check watchers, to be executed first */ |
2325 | /* queue check watchers, to be executed first */ |
2031 | if (expect_false (checkcnt)) |
2326 | if (expect_false (checkcnt)) |
2032 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2327 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2033 | |
2328 | |
2034 | call_pending (EV_A); |
2329 | EV_INVOKE_PENDING; |
2035 | } |
2330 | } |
2036 | while (expect_true ( |
2331 | while (expect_true ( |
2037 | activecnt |
2332 | activecnt |
2038 | && !loop_done |
2333 | && !loop_done |
2039 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2334 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2040 | )); |
2335 | )); |
2041 | |
2336 | |
2042 | if (loop_done == EVUNLOOP_ONE) |
2337 | if (loop_done == EVUNLOOP_ONE) |
2043 | loop_done = EVUNLOOP_CANCEL; |
2338 | loop_done = EVUNLOOP_CANCEL; |
|
|
2339 | |
|
|
2340 | #if EV_MINIMAL < 2 |
|
|
2341 | --loop_depth; |
|
|
2342 | #endif |
2044 | } |
2343 | } |
2045 | |
2344 | |
2046 | void |
2345 | void |
2047 | ev_unloop (EV_P_ int how) |
2346 | ev_unloop (EV_P_ int how) |
2048 | { |
2347 | { |
2049 | loop_done = how; |
2348 | loop_done = how; |
2050 | } |
2349 | } |
2051 | |
2350 | |
|
|
2351 | void |
|
|
2352 | ev_ref (EV_P) |
|
|
2353 | { |
|
|
2354 | ++activecnt; |
|
|
2355 | } |
|
|
2356 | |
|
|
2357 | void |
|
|
2358 | ev_unref (EV_P) |
|
|
2359 | { |
|
|
2360 | --activecnt; |
|
|
2361 | } |
|
|
2362 | |
|
|
2363 | void |
|
|
2364 | ev_now_update (EV_P) |
|
|
2365 | { |
|
|
2366 | time_update (EV_A_ 1e100); |
|
|
2367 | } |
|
|
2368 | |
|
|
2369 | void |
|
|
2370 | ev_suspend (EV_P) |
|
|
2371 | { |
|
|
2372 | ev_now_update (EV_A); |
|
|
2373 | } |
|
|
2374 | |
|
|
2375 | void |
|
|
2376 | ev_resume (EV_P) |
|
|
2377 | { |
|
|
2378 | ev_tstamp mn_prev = mn_now; |
|
|
2379 | |
|
|
2380 | ev_now_update (EV_A); |
|
|
2381 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2382 | #if EV_PERIODIC_ENABLE |
|
|
2383 | /* TODO: really do this? */ |
|
|
2384 | periodics_reschedule (EV_A); |
|
|
2385 | #endif |
|
|
2386 | } |
|
|
2387 | |
2052 | /*****************************************************************************/ |
2388 | /*****************************************************************************/ |
|
|
2389 | /* singly-linked list management, used when the expected list length is short */ |
2053 | |
2390 | |
2054 | void inline_size |
2391 | inline_size void |
2055 | wlist_add (WL *head, WL elem) |
2392 | wlist_add (WL *head, WL elem) |
2056 | { |
2393 | { |
2057 | elem->next = *head; |
2394 | elem->next = *head; |
2058 | *head = elem; |
2395 | *head = elem; |
2059 | } |
2396 | } |
2060 | |
2397 | |
2061 | void inline_size |
2398 | inline_size void |
2062 | wlist_del (WL *head, WL elem) |
2399 | wlist_del (WL *head, WL elem) |
2063 | { |
2400 | { |
2064 | while (*head) |
2401 | while (*head) |
2065 | { |
2402 | { |
2066 | if (*head == elem) |
2403 | if (*head == elem) |
… | |
… | |
2071 | |
2408 | |
2072 | head = &(*head)->next; |
2409 | head = &(*head)->next; |
2073 | } |
2410 | } |
2074 | } |
2411 | } |
2075 | |
2412 | |
2076 | void inline_speed |
2413 | /* internal, faster, version of ev_clear_pending */ |
|
|
2414 | inline_speed void |
2077 | clear_pending (EV_P_ W w) |
2415 | clear_pending (EV_P_ W w) |
2078 | { |
2416 | { |
2079 | if (w->pending) |
2417 | if (w->pending) |
2080 | { |
2418 | { |
2081 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2419 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2082 | w->pending = 0; |
2420 | w->pending = 0; |
2083 | } |
2421 | } |
2084 | } |
2422 | } |
2085 | |
2423 | |
2086 | int |
2424 | int |
… | |
… | |
2090 | int pending = w_->pending; |
2428 | int pending = w_->pending; |
2091 | |
2429 | |
2092 | if (expect_true (pending)) |
2430 | if (expect_true (pending)) |
2093 | { |
2431 | { |
2094 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2432 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2433 | p->w = (W)&pending_w; |
2095 | w_->pending = 0; |
2434 | w_->pending = 0; |
2096 | p->w = 0; |
|
|
2097 | return p->events; |
2435 | return p->events; |
2098 | } |
2436 | } |
2099 | else |
2437 | else |
2100 | return 0; |
2438 | return 0; |
2101 | } |
2439 | } |
2102 | |
2440 | |
2103 | void inline_size |
2441 | inline_size void |
2104 | pri_adjust (EV_P_ W w) |
2442 | pri_adjust (EV_P_ W w) |
2105 | { |
2443 | { |
2106 | int pri = w->priority; |
2444 | int pri = ev_priority (w); |
2107 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2445 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2108 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2446 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2109 | w->priority = pri; |
2447 | ev_set_priority (w, pri); |
2110 | } |
2448 | } |
2111 | |
2449 | |
2112 | void inline_speed |
2450 | inline_speed void |
2113 | ev_start (EV_P_ W w, int active) |
2451 | ev_start (EV_P_ W w, int active) |
2114 | { |
2452 | { |
2115 | pri_adjust (EV_A_ w); |
2453 | pri_adjust (EV_A_ w); |
2116 | w->active = active; |
2454 | w->active = active; |
2117 | ev_ref (EV_A); |
2455 | ev_ref (EV_A); |
2118 | } |
2456 | } |
2119 | |
2457 | |
2120 | void inline_size |
2458 | inline_size void |
2121 | ev_stop (EV_P_ W w) |
2459 | ev_stop (EV_P_ W w) |
2122 | { |
2460 | { |
2123 | ev_unref (EV_A); |
2461 | ev_unref (EV_A); |
2124 | w->active = 0; |
2462 | w->active = 0; |
2125 | } |
2463 | } |
… | |
… | |
2132 | int fd = w->fd; |
2470 | int fd = w->fd; |
2133 | |
2471 | |
2134 | if (expect_false (ev_is_active (w))) |
2472 | if (expect_false (ev_is_active (w))) |
2135 | return; |
2473 | return; |
2136 | |
2474 | |
2137 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2475 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2476 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2138 | |
2477 | |
2139 | EV_FREQUENT_CHECK; |
2478 | EV_FREQUENT_CHECK; |
2140 | |
2479 | |
2141 | ev_start (EV_A_ (W)w, 1); |
2480 | ev_start (EV_A_ (W)w, 1); |
2142 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2481 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2143 | wlist_add (&anfds[fd].head, (WL)w); |
2482 | wlist_add (&anfds[fd].head, (WL)w); |
2144 | |
2483 | |
2145 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2484 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2146 | w->events &= ~EV_IOFDSET; |
2485 | w->events &= ~EV__IOFDSET; |
2147 | |
2486 | |
2148 | EV_FREQUENT_CHECK; |
2487 | EV_FREQUENT_CHECK; |
2149 | } |
2488 | } |
2150 | |
2489 | |
2151 | void noinline |
2490 | void noinline |
… | |
… | |
2153 | { |
2492 | { |
2154 | clear_pending (EV_A_ (W)w); |
2493 | clear_pending (EV_A_ (W)w); |
2155 | if (expect_false (!ev_is_active (w))) |
2494 | if (expect_false (!ev_is_active (w))) |
2156 | return; |
2495 | return; |
2157 | |
2496 | |
2158 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2497 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2159 | |
2498 | |
2160 | EV_FREQUENT_CHECK; |
2499 | EV_FREQUENT_CHECK; |
2161 | |
2500 | |
2162 | wlist_del (&anfds[w->fd].head, (WL)w); |
2501 | wlist_del (&anfds[w->fd].head, (WL)w); |
2163 | ev_stop (EV_A_ (W)w); |
2502 | ev_stop (EV_A_ (W)w); |
… | |
… | |
2173 | if (expect_false (ev_is_active (w))) |
2512 | if (expect_false (ev_is_active (w))) |
2174 | return; |
2513 | return; |
2175 | |
2514 | |
2176 | ev_at (w) += mn_now; |
2515 | ev_at (w) += mn_now; |
2177 | |
2516 | |
2178 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2517 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2179 | |
2518 | |
2180 | EV_FREQUENT_CHECK; |
2519 | EV_FREQUENT_CHECK; |
2181 | |
2520 | |
2182 | ++timercnt; |
2521 | ++timercnt; |
2183 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2522 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
… | |
… | |
2186 | ANHE_at_cache (timers [ev_active (w)]); |
2525 | ANHE_at_cache (timers [ev_active (w)]); |
2187 | upheap (timers, ev_active (w)); |
2526 | upheap (timers, ev_active (w)); |
2188 | |
2527 | |
2189 | EV_FREQUENT_CHECK; |
2528 | EV_FREQUENT_CHECK; |
2190 | |
2529 | |
2191 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2530 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2192 | } |
2531 | } |
2193 | |
2532 | |
2194 | void noinline |
2533 | void noinline |
2195 | ev_timer_stop (EV_P_ ev_timer *w) |
2534 | ev_timer_stop (EV_P_ ev_timer *w) |
2196 | { |
2535 | { |
… | |
… | |
2201 | EV_FREQUENT_CHECK; |
2540 | EV_FREQUENT_CHECK; |
2202 | |
2541 | |
2203 | { |
2542 | { |
2204 | int active = ev_active (w); |
2543 | int active = ev_active (w); |
2205 | |
2544 | |
2206 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2545 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2207 | |
2546 | |
2208 | --timercnt; |
2547 | --timercnt; |
2209 | |
2548 | |
2210 | if (expect_true (active < timercnt + HEAP0)) |
2549 | if (expect_true (active < timercnt + HEAP0)) |
2211 | { |
2550 | { |
… | |
… | |
2244 | } |
2583 | } |
2245 | |
2584 | |
2246 | EV_FREQUENT_CHECK; |
2585 | EV_FREQUENT_CHECK; |
2247 | } |
2586 | } |
2248 | |
2587 | |
|
|
2588 | ev_tstamp |
|
|
2589 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2590 | { |
|
|
2591 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2592 | } |
|
|
2593 | |
2249 | #if EV_PERIODIC_ENABLE |
2594 | #if EV_PERIODIC_ENABLE |
2250 | void noinline |
2595 | void noinline |
2251 | ev_periodic_start (EV_P_ ev_periodic *w) |
2596 | ev_periodic_start (EV_P_ ev_periodic *w) |
2252 | { |
2597 | { |
2253 | if (expect_false (ev_is_active (w))) |
2598 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2255 | |
2600 | |
2256 | if (w->reschedule_cb) |
2601 | if (w->reschedule_cb) |
2257 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2602 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2258 | else if (w->interval) |
2603 | else if (w->interval) |
2259 | { |
2604 | { |
2260 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2605 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2261 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2606 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2262 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2607 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2263 | } |
2608 | } |
2264 | else |
2609 | else |
2265 | ev_at (w) = w->offset; |
2610 | ev_at (w) = w->offset; |
… | |
… | |
2273 | ANHE_at_cache (periodics [ev_active (w)]); |
2618 | ANHE_at_cache (periodics [ev_active (w)]); |
2274 | upheap (periodics, ev_active (w)); |
2619 | upheap (periodics, ev_active (w)); |
2275 | |
2620 | |
2276 | EV_FREQUENT_CHECK; |
2621 | EV_FREQUENT_CHECK; |
2277 | |
2622 | |
2278 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2623 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2279 | } |
2624 | } |
2280 | |
2625 | |
2281 | void noinline |
2626 | void noinline |
2282 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2627 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2283 | { |
2628 | { |
… | |
… | |
2288 | EV_FREQUENT_CHECK; |
2633 | EV_FREQUENT_CHECK; |
2289 | |
2634 | |
2290 | { |
2635 | { |
2291 | int active = ev_active (w); |
2636 | int active = ev_active (w); |
2292 | |
2637 | |
2293 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2638 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2294 | |
2639 | |
2295 | --periodiccnt; |
2640 | --periodiccnt; |
2296 | |
2641 | |
2297 | if (expect_true (active < periodiccnt + HEAP0)) |
2642 | if (expect_true (active < periodiccnt + HEAP0)) |
2298 | { |
2643 | { |
… | |
… | |
2321 | |
2666 | |
2322 | void noinline |
2667 | void noinline |
2323 | ev_signal_start (EV_P_ ev_signal *w) |
2668 | ev_signal_start (EV_P_ ev_signal *w) |
2324 | { |
2669 | { |
2325 | #if EV_MULTIPLICITY |
2670 | #if EV_MULTIPLICITY |
2326 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2671 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2327 | #endif |
2672 | #endif |
2328 | if (expect_false (ev_is_active (w))) |
2673 | if (expect_false (ev_is_active (w))) |
2329 | return; |
2674 | return; |
2330 | |
2675 | |
2331 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2676 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2332 | |
2677 | |
|
|
2678 | EV_FREQUENT_CHECK; |
|
|
2679 | |
|
|
2680 | #if EV_USE_SIGNALFD |
|
|
2681 | if (sigfd == -2) |
|
|
2682 | { |
|
|
2683 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
2684 | if (sigfd < 0 && errno == EINVAL) |
|
|
2685 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
2686 | |
|
|
2687 | if (sigfd >= 0) |
|
|
2688 | { |
|
|
2689 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
2690 | |
|
|
2691 | sigemptyset (&sigfd_set); |
|
|
2692 | |
|
|
2693 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2694 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2695 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2696 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2697 | } |
|
|
2698 | } |
|
|
2699 | |
|
|
2700 | if (sigfd >= 0) |
|
|
2701 | { |
|
|
2702 | /* TODO: check .head */ |
|
|
2703 | sigaddset (&sigfd_set, w->signum); |
|
|
2704 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2705 | |
|
|
2706 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2707 | } |
|
|
2708 | else |
|
|
2709 | #endif |
2333 | evpipe_init (EV_A); |
2710 | evpipe_init (EV_A); |
2334 | |
|
|
2335 | EV_FREQUENT_CHECK; |
|
|
2336 | |
2711 | |
2337 | { |
2712 | { |
2338 | #ifndef _WIN32 |
2713 | #ifndef _WIN32 |
2339 | sigset_t full, prev; |
2714 | sigset_t full, prev; |
2340 | sigfillset (&full); |
2715 | sigfillset (&full); |
2341 | sigprocmask (SIG_SETMASK, &full, &prev); |
2716 | sigprocmask (SIG_SETMASK, &full, &prev); |
2342 | #endif |
2717 | #endif |
2343 | |
2718 | |
2344 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2719 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2345 | |
2720 | |
2346 | #ifndef _WIN32 |
2721 | #ifndef _WIN32 |
|
|
2722 | # if EV_USE_SIGNALFD |
|
|
2723 | if (sigfd < 0)/*TODO*/ |
|
|
2724 | # endif |
|
|
2725 | sigdelset (&prev, w->signum); |
2347 | sigprocmask (SIG_SETMASK, &prev, 0); |
2726 | sigprocmask (SIG_SETMASK, &prev, 0); |
2348 | #endif |
2727 | #endif |
2349 | } |
2728 | } |
2350 | |
2729 | |
2351 | ev_start (EV_A_ (W)w, 1); |
2730 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
2354 | if (!((WL)w)->next) |
2733 | if (!((WL)w)->next) |
2355 | { |
2734 | { |
2356 | #if _WIN32 |
2735 | #if _WIN32 |
2357 | signal (w->signum, ev_sighandler); |
2736 | signal (w->signum, ev_sighandler); |
2358 | #else |
2737 | #else |
|
|
2738 | # if EV_USE_SIGNALFD |
|
|
2739 | if (sigfd < 0) /*TODO*/ |
|
|
2740 | # endif |
|
|
2741 | { |
2359 | struct sigaction sa; |
2742 | struct sigaction sa = { }; |
2360 | sa.sa_handler = ev_sighandler; |
2743 | sa.sa_handler = ev_sighandler; |
2361 | sigfillset (&sa.sa_mask); |
2744 | sigfillset (&sa.sa_mask); |
2362 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2745 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2363 | sigaction (w->signum, &sa, 0); |
2746 | sigaction (w->signum, &sa, 0); |
|
|
2747 | } |
2364 | #endif |
2748 | #endif |
2365 | } |
2749 | } |
2366 | |
2750 | |
2367 | EV_FREQUENT_CHECK; |
2751 | EV_FREQUENT_CHECK; |
2368 | } |
2752 | } |
… | |
… | |
2378 | |
2762 | |
2379 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2763 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2380 | ev_stop (EV_A_ (W)w); |
2764 | ev_stop (EV_A_ (W)w); |
2381 | |
2765 | |
2382 | if (!signals [w->signum - 1].head) |
2766 | if (!signals [w->signum - 1].head) |
|
|
2767 | #if EV_USE_SIGNALFD |
|
|
2768 | if (sigfd >= 0) |
|
|
2769 | { |
|
|
2770 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
|
|
2771 | sigdelset (&sigfd_set, w->signum); |
|
|
2772 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2773 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
|
|
2774 | /*TODO: maybe unblock signal? */ |
|
|
2775 | } |
|
|
2776 | else |
|
|
2777 | #endif |
2383 | signal (w->signum, SIG_DFL); |
2778 | signal (w->signum, SIG_DFL); |
2384 | |
2779 | |
2385 | EV_FREQUENT_CHECK; |
2780 | EV_FREQUENT_CHECK; |
2386 | } |
2781 | } |
2387 | |
2782 | |
2388 | void |
2783 | void |
2389 | ev_child_start (EV_P_ ev_child *w) |
2784 | ev_child_start (EV_P_ ev_child *w) |
2390 | { |
2785 | { |
2391 | #if EV_MULTIPLICITY |
2786 | #if EV_MULTIPLICITY |
2392 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2787 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2393 | #endif |
2788 | #endif |
2394 | if (expect_false (ev_is_active (w))) |
2789 | if (expect_false (ev_is_active (w))) |
2395 | return; |
2790 | return; |
2396 | |
2791 | |
2397 | EV_FREQUENT_CHECK; |
2792 | EV_FREQUENT_CHECK; |
… | |
… | |
2422 | # ifdef _WIN32 |
2817 | # ifdef _WIN32 |
2423 | # undef lstat |
2818 | # undef lstat |
2424 | # define lstat(a,b) _stati64 (a,b) |
2819 | # define lstat(a,b) _stati64 (a,b) |
2425 | # endif |
2820 | # endif |
2426 | |
2821 | |
2427 | #define DEF_STAT_INTERVAL 5.0074891 |
2822 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2823 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2428 | #define MIN_STAT_INTERVAL 0.1074891 |
2824 | #define MIN_STAT_INTERVAL 0.1074891 |
2429 | |
2825 | |
2430 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2826 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2431 | |
2827 | |
2432 | #if EV_USE_INOTIFY |
2828 | #if EV_USE_INOTIFY |
2433 | # define EV_INOTIFY_BUFSIZE 8192 |
2829 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2437 | { |
2833 | { |
2438 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2834 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2439 | |
2835 | |
2440 | if (w->wd < 0) |
2836 | if (w->wd < 0) |
2441 | { |
2837 | { |
|
|
2838 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2442 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2839 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2443 | |
2840 | |
2444 | /* monitor some parent directory for speedup hints */ |
2841 | /* monitor some parent directory for speedup hints */ |
2445 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2842 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2446 | /* but an efficiency issue only */ |
2843 | /* but an efficiency issue only */ |
2447 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2844 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2448 | { |
2845 | { |
2449 | char path [4096]; |
2846 | char path [4096]; |
2450 | strcpy (path, w->path); |
2847 | strcpy (path, w->path); |
… | |
… | |
2454 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2851 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2455 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2852 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2456 | |
2853 | |
2457 | char *pend = strrchr (path, '/'); |
2854 | char *pend = strrchr (path, '/'); |
2458 | |
2855 | |
2459 | if (!pend) |
2856 | if (!pend || pend == path) |
2460 | break; /* whoops, no '/', complain to your admin */ |
2857 | break; |
2461 | |
2858 | |
2462 | *pend = 0; |
2859 | *pend = 0; |
2463 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2860 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2464 | } |
2861 | } |
2465 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2862 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2466 | } |
2863 | } |
2467 | } |
2864 | } |
2468 | else |
|
|
2469 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2470 | |
2865 | |
2471 | if (w->wd >= 0) |
2866 | if (w->wd >= 0) |
|
|
2867 | { |
2472 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2868 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2869 | |
|
|
2870 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2871 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2872 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2873 | struct statfs sfs; |
|
|
2874 | |
|
|
2875 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2876 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2877 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2878 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2879 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2880 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2881 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2882 | return; |
|
|
2883 | |
|
|
2884 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2885 | ev_timer_again (EV_A_ &w->timer); |
|
|
2886 | } |
2473 | } |
2887 | } |
2474 | |
2888 | |
2475 | static void noinline |
2889 | static void noinline |
2476 | infy_del (EV_P_ ev_stat *w) |
2890 | infy_del (EV_P_ ev_stat *w) |
2477 | { |
2891 | { |
… | |
… | |
2491 | |
2905 | |
2492 | static void noinline |
2906 | static void noinline |
2493 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2907 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2494 | { |
2908 | { |
2495 | if (slot < 0) |
2909 | if (slot < 0) |
2496 | /* overflow, need to check for all hahs slots */ |
2910 | /* overflow, need to check for all hash slots */ |
2497 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2911 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2498 | infy_wd (EV_A_ slot, wd, ev); |
2912 | infy_wd (EV_A_ slot, wd, ev); |
2499 | else |
2913 | else |
2500 | { |
2914 | { |
2501 | WL w_; |
2915 | WL w_; |
… | |
… | |
2507 | |
2921 | |
2508 | if (w->wd == wd || wd == -1) |
2922 | if (w->wd == wd || wd == -1) |
2509 | { |
2923 | { |
2510 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2924 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2511 | { |
2925 | { |
|
|
2926 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2512 | w->wd = -1; |
2927 | w->wd = -1; |
2513 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2928 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2514 | } |
2929 | } |
2515 | |
2930 | |
2516 | stat_timer_cb (EV_A_ &w->timer, 0); |
2931 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2529 | |
2944 | |
2530 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2945 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2531 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2946 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2532 | } |
2947 | } |
2533 | |
2948 | |
2534 | void inline_size |
2949 | inline_size void |
|
|
2950 | check_2625 (EV_P) |
|
|
2951 | { |
|
|
2952 | /* kernels < 2.6.25 are borked |
|
|
2953 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2954 | */ |
|
|
2955 | struct utsname buf; |
|
|
2956 | int major, minor, micro; |
|
|
2957 | |
|
|
2958 | if (uname (&buf)) |
|
|
2959 | return; |
|
|
2960 | |
|
|
2961 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2962 | return; |
|
|
2963 | |
|
|
2964 | if (major < 2 |
|
|
2965 | || (major == 2 && minor < 6) |
|
|
2966 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2967 | return; |
|
|
2968 | |
|
|
2969 | fs_2625 = 1; |
|
|
2970 | } |
|
|
2971 | |
|
|
2972 | inline_size void |
2535 | infy_init (EV_P) |
2973 | infy_init (EV_P) |
2536 | { |
2974 | { |
2537 | if (fs_fd != -2) |
2975 | if (fs_fd != -2) |
2538 | return; |
2976 | return; |
|
|
2977 | |
|
|
2978 | fs_fd = -1; |
|
|
2979 | |
|
|
2980 | check_2625 (EV_A); |
2539 | |
2981 | |
2540 | fs_fd = inotify_init (); |
2982 | fs_fd = inotify_init (); |
2541 | |
2983 | |
2542 | if (fs_fd >= 0) |
2984 | if (fs_fd >= 0) |
2543 | { |
2985 | { |
… | |
… | |
2545 | ev_set_priority (&fs_w, EV_MAXPRI); |
2987 | ev_set_priority (&fs_w, EV_MAXPRI); |
2546 | ev_io_start (EV_A_ &fs_w); |
2988 | ev_io_start (EV_A_ &fs_w); |
2547 | } |
2989 | } |
2548 | } |
2990 | } |
2549 | |
2991 | |
2550 | void inline_size |
2992 | inline_size void |
2551 | infy_fork (EV_P) |
2993 | infy_fork (EV_P) |
2552 | { |
2994 | { |
2553 | int slot; |
2995 | int slot; |
2554 | |
2996 | |
2555 | if (fs_fd < 0) |
2997 | if (fs_fd < 0) |
… | |
… | |
2571 | w->wd = -1; |
3013 | w->wd = -1; |
2572 | |
3014 | |
2573 | if (fs_fd >= 0) |
3015 | if (fs_fd >= 0) |
2574 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3016 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2575 | else |
3017 | else |
2576 | ev_timer_start (EV_A_ &w->timer); |
3018 | ev_timer_again (EV_A_ &w->timer); |
2577 | } |
3019 | } |
2578 | |
|
|
2579 | } |
3020 | } |
2580 | } |
3021 | } |
2581 | |
3022 | |
2582 | #endif |
3023 | #endif |
2583 | |
3024 | |
… | |
… | |
2619 | || w->prev.st_atime != w->attr.st_atime |
3060 | || w->prev.st_atime != w->attr.st_atime |
2620 | || w->prev.st_mtime != w->attr.st_mtime |
3061 | || w->prev.st_mtime != w->attr.st_mtime |
2621 | || w->prev.st_ctime != w->attr.st_ctime |
3062 | || w->prev.st_ctime != w->attr.st_ctime |
2622 | ) { |
3063 | ) { |
2623 | #if EV_USE_INOTIFY |
3064 | #if EV_USE_INOTIFY |
|
|
3065 | if (fs_fd >= 0) |
|
|
3066 | { |
2624 | infy_del (EV_A_ w); |
3067 | infy_del (EV_A_ w); |
2625 | infy_add (EV_A_ w); |
3068 | infy_add (EV_A_ w); |
2626 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3069 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3070 | } |
2627 | #endif |
3071 | #endif |
2628 | |
3072 | |
2629 | ev_feed_event (EV_A_ w, EV_STAT); |
3073 | ev_feed_event (EV_A_ w, EV_STAT); |
2630 | } |
3074 | } |
2631 | } |
3075 | } |
… | |
… | |
2634 | ev_stat_start (EV_P_ ev_stat *w) |
3078 | ev_stat_start (EV_P_ ev_stat *w) |
2635 | { |
3079 | { |
2636 | if (expect_false (ev_is_active (w))) |
3080 | if (expect_false (ev_is_active (w))) |
2637 | return; |
3081 | return; |
2638 | |
3082 | |
2639 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2640 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2641 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2642 | |
|
|
2643 | ev_stat_stat (EV_A_ w); |
3083 | ev_stat_stat (EV_A_ w); |
2644 | |
3084 | |
|
|
3085 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2645 | if (w->interval < MIN_STAT_INTERVAL) |
3086 | w->interval = MIN_STAT_INTERVAL; |
2646 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2647 | |
3087 | |
2648 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3088 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2649 | ev_set_priority (&w->timer, ev_priority (w)); |
3089 | ev_set_priority (&w->timer, ev_priority (w)); |
2650 | |
3090 | |
2651 | #if EV_USE_INOTIFY |
3091 | #if EV_USE_INOTIFY |
2652 | infy_init (EV_A); |
3092 | infy_init (EV_A); |
2653 | |
3093 | |
2654 | if (fs_fd >= 0) |
3094 | if (fs_fd >= 0) |
2655 | infy_add (EV_A_ w); |
3095 | infy_add (EV_A_ w); |
2656 | else |
3096 | else |
2657 | #endif |
3097 | #endif |
2658 | ev_timer_start (EV_A_ &w->timer); |
3098 | ev_timer_again (EV_A_ &w->timer); |
2659 | |
3099 | |
2660 | ev_start (EV_A_ (W)w, 1); |
3100 | ev_start (EV_A_ (W)w, 1); |
2661 | |
3101 | |
2662 | EV_FREQUENT_CHECK; |
3102 | EV_FREQUENT_CHECK; |
2663 | } |
3103 | } |
… | |
… | |
2838 | static void |
3278 | static void |
2839 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3279 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2840 | { |
3280 | { |
2841 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3281 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2842 | |
3282 | |
|
|
3283 | ev_embed_stop (EV_A_ w); |
|
|
3284 | |
2843 | { |
3285 | { |
2844 | struct ev_loop *loop = w->other; |
3286 | struct ev_loop *loop = w->other; |
2845 | |
3287 | |
2846 | ev_loop_fork (EV_A); |
3288 | ev_loop_fork (EV_A); |
|
|
3289 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2847 | } |
3290 | } |
|
|
3291 | |
|
|
3292 | ev_embed_start (EV_A_ w); |
2848 | } |
3293 | } |
2849 | |
3294 | |
2850 | #if 0 |
3295 | #if 0 |
2851 | static void |
3296 | static void |
2852 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3297 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2861 | if (expect_false (ev_is_active (w))) |
3306 | if (expect_false (ev_is_active (w))) |
2862 | return; |
3307 | return; |
2863 | |
3308 | |
2864 | { |
3309 | { |
2865 | struct ev_loop *loop = w->other; |
3310 | struct ev_loop *loop = w->other; |
2866 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3311 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2867 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3312 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2868 | } |
3313 | } |
2869 | |
3314 | |
2870 | EV_FREQUENT_CHECK; |
3315 | EV_FREQUENT_CHECK; |
2871 | |
3316 | |
… | |
… | |
3054 | ev_timer_set (&once->to, timeout, 0.); |
3499 | ev_timer_set (&once->to, timeout, 0.); |
3055 | ev_timer_start (EV_A_ &once->to); |
3500 | ev_timer_start (EV_A_ &once->to); |
3056 | } |
3501 | } |
3057 | } |
3502 | } |
3058 | |
3503 | |
|
|
3504 | /*****************************************************************************/ |
|
|
3505 | |
|
|
3506 | #if EV_WALK_ENABLE |
|
|
3507 | void |
|
|
3508 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3509 | { |
|
|
3510 | int i, j; |
|
|
3511 | ev_watcher_list *wl, *wn; |
|
|
3512 | |
|
|
3513 | if (types & (EV_IO | EV_EMBED)) |
|
|
3514 | for (i = 0; i < anfdmax; ++i) |
|
|
3515 | for (wl = anfds [i].head; wl; ) |
|
|
3516 | { |
|
|
3517 | wn = wl->next; |
|
|
3518 | |
|
|
3519 | #if EV_EMBED_ENABLE |
|
|
3520 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3521 | { |
|
|
3522 | if (types & EV_EMBED) |
|
|
3523 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3524 | } |
|
|
3525 | else |
|
|
3526 | #endif |
|
|
3527 | #if EV_USE_INOTIFY |
|
|
3528 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3529 | ; |
|
|
3530 | else |
|
|
3531 | #endif |
|
|
3532 | if ((ev_io *)wl != &pipe_w) |
|
|
3533 | if (types & EV_IO) |
|
|
3534 | cb (EV_A_ EV_IO, wl); |
|
|
3535 | |
|
|
3536 | wl = wn; |
|
|
3537 | } |
|
|
3538 | |
|
|
3539 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3540 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3541 | #if EV_STAT_ENABLE |
|
|
3542 | /*TODO: timer is not always active*/ |
|
|
3543 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3544 | { |
|
|
3545 | if (types & EV_STAT) |
|
|
3546 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3547 | } |
|
|
3548 | else |
|
|
3549 | #endif |
|
|
3550 | if (types & EV_TIMER) |
|
|
3551 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3552 | |
|
|
3553 | #if EV_PERIODIC_ENABLE |
|
|
3554 | if (types & EV_PERIODIC) |
|
|
3555 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3556 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3557 | #endif |
|
|
3558 | |
|
|
3559 | #if EV_IDLE_ENABLE |
|
|
3560 | if (types & EV_IDLE) |
|
|
3561 | for (j = NUMPRI; i--; ) |
|
|
3562 | for (i = idlecnt [j]; i--; ) |
|
|
3563 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3564 | #endif |
|
|
3565 | |
|
|
3566 | #if EV_FORK_ENABLE |
|
|
3567 | if (types & EV_FORK) |
|
|
3568 | for (i = forkcnt; i--; ) |
|
|
3569 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3570 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3571 | #endif |
|
|
3572 | |
|
|
3573 | #if EV_ASYNC_ENABLE |
|
|
3574 | if (types & EV_ASYNC) |
|
|
3575 | for (i = asynccnt; i--; ) |
|
|
3576 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3577 | #endif |
|
|
3578 | |
|
|
3579 | if (types & EV_PREPARE) |
|
|
3580 | for (i = preparecnt; i--; ) |
|
|
3581 | #if EV_EMBED_ENABLE |
|
|
3582 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3583 | #endif |
|
|
3584 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3585 | |
|
|
3586 | if (types & EV_CHECK) |
|
|
3587 | for (i = checkcnt; i--; ) |
|
|
3588 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3589 | |
|
|
3590 | if (types & EV_SIGNAL) |
|
|
3591 | for (i = 0; i < signalmax; ++i) |
|
|
3592 | for (wl = signals [i].head; wl; ) |
|
|
3593 | { |
|
|
3594 | wn = wl->next; |
|
|
3595 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3596 | wl = wn; |
|
|
3597 | } |
|
|
3598 | |
|
|
3599 | if (types & EV_CHILD) |
|
|
3600 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3601 | for (wl = childs [i]; wl; ) |
|
|
3602 | { |
|
|
3603 | wn = wl->next; |
|
|
3604 | cb (EV_A_ EV_CHILD, wl); |
|
|
3605 | wl = wn; |
|
|
3606 | } |
|
|
3607 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3608 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3609 | } |
|
|
3610 | #endif |
|
|
3611 | |
3059 | #if EV_MULTIPLICITY |
3612 | #if EV_MULTIPLICITY |
3060 | #include "ev_wrap.h" |
3613 | #include "ev_wrap.h" |
3061 | #endif |
3614 | #endif |
3062 | |
3615 | |
3063 | #ifdef __cplusplus |
3616 | #ifdef __cplusplus |