1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
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 |
|
|
58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
|
|
61 | # endif |
|
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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|
64 | # endif |
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|
65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
126 | # define EV_USE_EVENTFD 1 |
140 | # define EV_USE_EVENTFD 1 |
127 | # else |
141 | # else |
128 | # define EV_USE_EVENTFD 0 |
142 | # define EV_USE_EVENTFD 0 |
129 | # endif |
143 | # endif |
130 | # endif |
144 | # endif |
131 | |
145 | |
132 | #endif |
146 | #endif |
133 | |
147 | |
134 | #include <math.h> |
148 | #include <math.h> |
135 | #include <stdlib.h> |
149 | #include <stdlib.h> |
136 | #include <fcntl.h> |
150 | #include <fcntl.h> |
… | |
… | |
154 | #ifndef _WIN32 |
168 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
169 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
170 | # include <sys/wait.h> |
157 | # include <unistd.h> |
171 | # include <unistd.h> |
158 | #else |
172 | #else |
|
|
173 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
174 | # define WIN32_LEAN_AND_MEAN |
160 | # include <windows.h> |
175 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
178 | # endif |
164 | #endif |
179 | #endif |
165 | |
180 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
182 | |
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183 | #ifndef EV_USE_CLOCK_SYSCALL |
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184 | # if __linux && __GLIBC__ >= 2 |
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185 | # define EV_USE_CLOCK_SYSCALL 1 |
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186 | # else |
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187 | # define EV_USE_CLOCK_SYSCALL 0 |
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188 | # endif |
|
|
189 | #endif |
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|
190 | |
168 | #ifndef EV_USE_MONOTONIC |
191 | #ifndef EV_USE_MONOTONIC |
|
|
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
193 | # define EV_USE_MONOTONIC 1 |
|
|
194 | # else |
169 | # define EV_USE_MONOTONIC 0 |
195 | # define EV_USE_MONOTONIC 0 |
|
|
196 | # endif |
170 | #endif |
197 | #endif |
171 | |
198 | |
172 | #ifndef EV_USE_REALTIME |
199 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
201 | #endif |
175 | |
202 | |
176 | #ifndef EV_USE_NANOSLEEP |
203 | #ifndef EV_USE_NANOSLEEP |
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|
204 | # if _POSIX_C_SOURCE >= 199309L |
|
|
205 | # define EV_USE_NANOSLEEP 1 |
|
|
206 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
207 | # define EV_USE_NANOSLEEP 0 |
|
|
208 | # endif |
178 | #endif |
209 | #endif |
179 | |
210 | |
180 | #ifndef EV_USE_SELECT |
211 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
212 | # define EV_USE_SELECT 1 |
182 | #endif |
213 | #endif |
… | |
… | |
235 | # else |
266 | # else |
236 | # define EV_USE_EVENTFD 0 |
267 | # define EV_USE_EVENTFD 0 |
237 | # endif |
268 | # endif |
238 | #endif |
269 | #endif |
239 | |
270 | |
|
|
271 | #if 0 /* debugging */ |
|
|
272 | # define EV_VERIFY 3 |
|
|
273 | # define EV_USE_4HEAP 1 |
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274 | # define EV_HEAP_CACHE_AT 1 |
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275 | #endif |
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276 | |
|
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277 | #ifndef EV_VERIFY |
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278 | # define EV_VERIFY !EV_MINIMAL |
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279 | #endif |
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280 | |
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281 | #ifndef EV_USE_4HEAP |
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282 | # define EV_USE_4HEAP !EV_MINIMAL |
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283 | #endif |
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284 | |
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285 | #ifndef EV_HEAP_CACHE_AT |
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286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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287 | #endif |
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288 | |
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289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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290 | /* which makes programs even slower. might work on other unices, too. */ |
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291 | #if EV_USE_CLOCK_SYSCALL |
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292 | # include <syscall.h> |
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293 | # ifdef SYS_clock_gettime |
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294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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295 | # undef EV_USE_MONOTONIC |
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296 | # define EV_USE_MONOTONIC 1 |
|
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297 | # else |
|
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298 | # undef EV_USE_CLOCK_SYSCALL |
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299 | # define EV_USE_CLOCK_SYSCALL 0 |
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300 | # endif |
|
|
301 | #endif |
|
|
302 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
241 | |
304 | |
242 | #ifndef CLOCK_MONOTONIC |
305 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
307 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
259 | # include <sys/select.h> |
322 | # include <sys/select.h> |
260 | # endif |
323 | # endif |
261 | #endif |
324 | #endif |
262 | |
325 | |
263 | #if EV_USE_INOTIFY |
326 | #if EV_USE_INOTIFY |
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|
327 | # include <sys/utsname.h> |
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328 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
329 | # include <sys/inotify.h> |
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330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
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331 | # ifndef IN_DONT_FOLLOW |
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332 | # undef EV_USE_INOTIFY |
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333 | # define EV_USE_INOTIFY 0 |
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|
334 | # endif |
265 | #endif |
335 | #endif |
266 | |
336 | |
267 | #if EV_SELECT_IS_WINSOCKET |
337 | #if EV_SELECT_IS_WINSOCKET |
268 | # include <winsock.h> |
338 | # include <winsock.h> |
269 | #endif |
339 | #endif |
… | |
… | |
279 | } |
349 | } |
280 | # endif |
350 | # endif |
281 | #endif |
351 | #endif |
282 | |
352 | |
283 | /**/ |
353 | /**/ |
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354 | |
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355 | #if EV_VERIFY >= 3 |
|
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356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
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357 | #else |
|
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358 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
359 | #endif |
284 | |
360 | |
285 | /* |
361 | /* |
286 | * This is used to avoid floating point rounding problems. |
362 | * This is used to avoid floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
363 | * It is added to ev_rt_now when scheduling periodics |
288 | * to ensure progress, time-wise, even when rounding |
364 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
315 | # define inline_speed static noinline |
391 | # define inline_speed static noinline |
316 | #else |
392 | #else |
317 | # define inline_speed static inline |
393 | # define inline_speed static inline |
318 | #endif |
394 | #endif |
319 | |
395 | |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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397 | |
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398 | #if EV_MINPRI == EV_MAXPRI |
|
|
399 | # define ABSPRI(w) (((W)w), 0) |
|
|
400 | #else |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
401 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
402 | #endif |
322 | |
403 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
404 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
405 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
325 | |
406 | |
326 | typedef ev_watcher *W; |
407 | typedef ev_watcher *W; |
… | |
… | |
328 | typedef ev_watcher_time *WT; |
409 | typedef ev_watcher_time *WT; |
329 | |
410 | |
330 | #define ev_active(w) ((W)(w))->active |
411 | #define ev_active(w) ((W)(w))->active |
331 | #define ev_at(w) ((WT)(w))->at |
412 | #define ev_at(w) ((WT)(w))->at |
332 | |
413 | |
333 | #if EV_USE_MONOTONIC |
414 | #if EV_USE_REALTIME |
334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
335 | /* giving it a reasonably high chance of working on typical architetcures */ |
416 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
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417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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418 | #endif |
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419 | |
|
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420 | #if EV_USE_MONOTONIC |
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
337 | #endif |
422 | #endif |
338 | |
423 | |
339 | #ifdef _WIN32 |
424 | #ifdef _WIN32 |
340 | # include "ev_win32.c" |
425 | # include "ev_win32.c" |
… | |
… | |
349 | { |
434 | { |
350 | syserr_cb = cb; |
435 | syserr_cb = cb; |
351 | } |
436 | } |
352 | |
437 | |
353 | static void noinline |
438 | static void noinline |
354 | syserr (const char *msg) |
439 | ev_syserr (const char *msg) |
355 | { |
440 | { |
356 | if (!msg) |
441 | if (!msg) |
357 | msg = "(libev) system error"; |
442 | msg = "(libev) system error"; |
358 | |
443 | |
359 | if (syserr_cb) |
444 | if (syserr_cb) |
… | |
… | |
405 | #define ev_malloc(size) ev_realloc (0, (size)) |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
406 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
407 | |
492 | |
408 | /*****************************************************************************/ |
493 | /*****************************************************************************/ |
409 | |
494 | |
|
|
495 | /* file descriptor info structure */ |
410 | typedef struct |
496 | typedef struct |
411 | { |
497 | { |
412 | WL head; |
498 | WL head; |
413 | unsigned char events; |
499 | unsigned char events; /* the events watched for */ |
|
|
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
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|
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
414 | unsigned char reify; |
502 | unsigned char unused; |
|
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503 | #if EV_USE_EPOLL |
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504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
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505 | #endif |
415 | #if EV_SELECT_IS_WINSOCKET |
506 | #if EV_SELECT_IS_WINSOCKET |
416 | SOCKET handle; |
507 | SOCKET handle; |
417 | #endif |
508 | #endif |
418 | } ANFD; |
509 | } ANFD; |
419 | |
510 | |
|
|
511 | /* stores the pending event set for a given watcher */ |
420 | typedef struct |
512 | typedef struct |
421 | { |
513 | { |
422 | W w; |
514 | W w; |
423 | int events; |
515 | int events; /* the pending event set for the given watcher */ |
424 | } ANPENDING; |
516 | } ANPENDING; |
425 | |
517 | |
426 | #if EV_USE_INOTIFY |
518 | #if EV_USE_INOTIFY |
|
|
519 | /* hash table entry per inotify-id */ |
427 | typedef struct |
520 | typedef struct |
428 | { |
521 | { |
429 | WL head; |
522 | WL head; |
430 | } ANFS; |
523 | } ANFS; |
|
|
524 | #endif |
|
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525 | |
|
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526 | /* Heap Entry */ |
|
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527 | #if EV_HEAP_CACHE_AT |
|
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528 | /* a heap element */ |
|
|
529 | typedef struct { |
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530 | ev_tstamp at; |
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531 | WT w; |
|
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532 | } ANHE; |
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533 | |
|
|
534 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
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535 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
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536 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
537 | #else |
|
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538 | /* a heap element */ |
|
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539 | typedef WT ANHE; |
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540 | |
|
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541 | #define ANHE_w(he) (he) |
|
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542 | #define ANHE_at(he) (he)->at |
|
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543 | #define ANHE_at_cache(he) |
431 | #endif |
544 | #endif |
432 | |
545 | |
433 | #if EV_MULTIPLICITY |
546 | #if EV_MULTIPLICITY |
434 | |
547 | |
435 | struct ev_loop |
548 | struct ev_loop |
… | |
… | |
456 | |
569 | |
457 | #endif |
570 | #endif |
458 | |
571 | |
459 | /*****************************************************************************/ |
572 | /*****************************************************************************/ |
460 | |
573 | |
|
|
574 | #ifndef EV_HAVE_EV_TIME |
461 | ev_tstamp |
575 | ev_tstamp |
462 | ev_time (void) |
576 | ev_time (void) |
463 | { |
577 | { |
464 | #if EV_USE_REALTIME |
578 | #if EV_USE_REALTIME |
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579 | if (expect_true (have_realtime)) |
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580 | { |
465 | struct timespec ts; |
581 | struct timespec ts; |
466 | clock_gettime (CLOCK_REALTIME, &ts); |
582 | clock_gettime (CLOCK_REALTIME, &ts); |
467 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
583 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
468 | #else |
584 | } |
|
|
585 | #endif |
|
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586 | |
469 | struct timeval tv; |
587 | struct timeval tv; |
470 | gettimeofday (&tv, 0); |
588 | gettimeofday (&tv, 0); |
471 | return tv.tv_sec + tv.tv_usec * 1e-6; |
589 | return tv.tv_sec + tv.tv_usec * 1e-6; |
472 | #endif |
|
|
473 | } |
590 | } |
|
|
591 | #endif |
474 | |
592 | |
475 | ev_tstamp inline_size |
593 | inline_size ev_tstamp |
476 | get_clock (void) |
594 | get_clock (void) |
477 | { |
595 | { |
478 | #if EV_USE_MONOTONIC |
596 | #if EV_USE_MONOTONIC |
479 | if (expect_true (have_monotonic)) |
597 | if (expect_true (have_monotonic)) |
480 | { |
598 | { |
… | |
… | |
513 | struct timeval tv; |
631 | struct timeval tv; |
514 | |
632 | |
515 | tv.tv_sec = (time_t)delay; |
633 | tv.tv_sec = (time_t)delay; |
516 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
634 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
517 | |
635 | |
|
|
636 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
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637 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
|
|
638 | /* by older ones */ |
518 | select (0, 0, 0, 0, &tv); |
639 | select (0, 0, 0, 0, &tv); |
519 | #endif |
640 | #endif |
520 | } |
641 | } |
521 | } |
642 | } |
522 | |
643 | |
523 | /*****************************************************************************/ |
644 | /*****************************************************************************/ |
524 | |
645 | |
525 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
646 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
526 | |
647 | |
527 | int inline_size |
648 | /* find a suitable new size for the given array, */ |
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649 | /* hopefully by rounding to a ncie-to-malloc size */ |
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650 | inline_size int |
528 | array_nextsize (int elem, int cur, int cnt) |
651 | array_nextsize (int elem, int cur, int cnt) |
529 | { |
652 | { |
530 | int ncur = cur + 1; |
653 | int ncur = cur + 1; |
531 | |
654 | |
532 | do |
655 | do |
… | |
… | |
549 | array_realloc (int elem, void *base, int *cur, int cnt) |
672 | array_realloc (int elem, void *base, int *cur, int cnt) |
550 | { |
673 | { |
551 | *cur = array_nextsize (elem, *cur, cnt); |
674 | *cur = array_nextsize (elem, *cur, cnt); |
552 | return ev_realloc (base, elem * *cur); |
675 | return ev_realloc (base, elem * *cur); |
553 | } |
676 | } |
|
|
677 | |
|
|
678 | #define array_init_zero(base,count) \ |
|
|
679 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
554 | |
680 | |
555 | #define array_needsize(type,base,cur,cnt,init) \ |
681 | #define array_needsize(type,base,cur,cnt,init) \ |
556 | if (expect_false ((cnt) > (cur))) \ |
682 | if (expect_false ((cnt) > (cur))) \ |
557 | { \ |
683 | { \ |
558 | int ocur_ = (cur); \ |
684 | int ocur_ = (cur); \ |
… | |
… | |
570 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
696 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
571 | } |
697 | } |
572 | #endif |
698 | #endif |
573 | |
699 | |
574 | #define array_free(stem, idx) \ |
700 | #define array_free(stem, idx) \ |
575 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
701 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
576 | |
702 | |
577 | /*****************************************************************************/ |
703 | /*****************************************************************************/ |
|
|
704 | |
|
|
705 | /* dummy callback for pending events */ |
|
|
706 | static void noinline |
|
|
707 | pendingcb (EV_P_ ev_prepare *w, int revents) |
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708 | { |
|
|
709 | } |
578 | |
710 | |
579 | void noinline |
711 | void noinline |
580 | ev_feed_event (EV_P_ void *w, int revents) |
712 | ev_feed_event (EV_P_ void *w, int revents) |
581 | { |
713 | { |
582 | W w_ = (W)w; |
714 | W w_ = (W)w; |
… | |
… | |
591 | pendings [pri][w_->pending - 1].w = w_; |
723 | pendings [pri][w_->pending - 1].w = w_; |
592 | pendings [pri][w_->pending - 1].events = revents; |
724 | pendings [pri][w_->pending - 1].events = revents; |
593 | } |
725 | } |
594 | } |
726 | } |
595 | |
727 | |
596 | void inline_speed |
728 | inline_speed void |
|
|
729 | feed_reverse (EV_P_ W w) |
|
|
730 | { |
|
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731 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
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732 | rfeeds [rfeedcnt++] = w; |
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|
733 | } |
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734 | |
|
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735 | inline_size void |
|
|
736 | feed_reverse_done (EV_P_ int revents) |
|
|
737 | { |
|
|
738 | do |
|
|
739 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
740 | while (rfeedcnt); |
|
|
741 | } |
|
|
742 | |
|
|
743 | inline_speed void |
597 | queue_events (EV_P_ W *events, int eventcnt, int type) |
744 | queue_events (EV_P_ W *events, int eventcnt, int type) |
598 | { |
745 | { |
599 | int i; |
746 | int i; |
600 | |
747 | |
601 | for (i = 0; i < eventcnt; ++i) |
748 | for (i = 0; i < eventcnt; ++i) |
602 | ev_feed_event (EV_A_ events [i], type); |
749 | ev_feed_event (EV_A_ events [i], type); |
603 | } |
750 | } |
604 | |
751 | |
605 | /*****************************************************************************/ |
752 | /*****************************************************************************/ |
606 | |
753 | |
607 | void inline_size |
754 | inline_speed void |
608 | anfds_init (ANFD *base, int count) |
|
|
609 | { |
|
|
610 | while (count--) |
|
|
611 | { |
|
|
612 | base->head = 0; |
|
|
613 | base->events = EV_NONE; |
|
|
614 | base->reify = 0; |
|
|
615 | |
|
|
616 | ++base; |
|
|
617 | } |
|
|
618 | } |
|
|
619 | |
|
|
620 | void inline_speed |
|
|
621 | fd_event (EV_P_ int fd, int revents) |
755 | fd_event (EV_P_ int fd, int revents) |
622 | { |
756 | { |
623 | ANFD *anfd = anfds + fd; |
757 | ANFD *anfd = anfds + fd; |
624 | ev_io *w; |
758 | ev_io *w; |
625 | |
759 | |
… | |
… | |
637 | { |
771 | { |
638 | if (fd >= 0 && fd < anfdmax) |
772 | if (fd >= 0 && fd < anfdmax) |
639 | fd_event (EV_A_ fd, revents); |
773 | fd_event (EV_A_ fd, revents); |
640 | } |
774 | } |
641 | |
775 | |
642 | void inline_size |
776 | /* make sure the external fd watch events are in-sync */ |
|
|
777 | /* with the kernel/libev internal state */ |
|
|
778 | inline_size void |
643 | fd_reify (EV_P) |
779 | fd_reify (EV_P) |
644 | { |
780 | { |
645 | int i; |
781 | int i; |
646 | |
782 | |
647 | for (i = 0; i < fdchangecnt; ++i) |
783 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
656 | events |= (unsigned char)w->events; |
792 | events |= (unsigned char)w->events; |
657 | |
793 | |
658 | #if EV_SELECT_IS_WINSOCKET |
794 | #if EV_SELECT_IS_WINSOCKET |
659 | if (events) |
795 | if (events) |
660 | { |
796 | { |
661 | unsigned long argp; |
797 | unsigned long arg; |
662 | #ifdef EV_FD_TO_WIN32_HANDLE |
798 | #ifdef EV_FD_TO_WIN32_HANDLE |
663 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
799 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
664 | #else |
800 | #else |
665 | anfd->handle = _get_osfhandle (fd); |
801 | anfd->handle = _get_osfhandle (fd); |
666 | #endif |
802 | #endif |
667 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
803 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
668 | } |
804 | } |
669 | #endif |
805 | #endif |
670 | |
806 | |
671 | { |
807 | { |
672 | unsigned char o_events = anfd->events; |
808 | unsigned char o_events = anfd->events; |
673 | unsigned char o_reify = anfd->reify; |
809 | unsigned char o_reify = anfd->reify; |
674 | |
810 | |
675 | anfd->reify = 0; |
811 | anfd->reify = 0; |
676 | anfd->events = events; |
812 | anfd->events = events; |
677 | |
813 | |
678 | if (o_events != events || o_reify & EV_IOFDSET) |
814 | if (o_events != events || o_reify & EV__IOFDSET) |
679 | backend_modify (EV_A_ fd, o_events, events); |
815 | backend_modify (EV_A_ fd, o_events, events); |
680 | } |
816 | } |
681 | } |
817 | } |
682 | |
818 | |
683 | fdchangecnt = 0; |
819 | fdchangecnt = 0; |
684 | } |
820 | } |
685 | |
821 | |
686 | void inline_size |
822 | /* something about the given fd changed */ |
|
|
823 | inline_size void |
687 | fd_change (EV_P_ int fd, int flags) |
824 | fd_change (EV_P_ int fd, int flags) |
688 | { |
825 | { |
689 | unsigned char reify = anfds [fd].reify; |
826 | unsigned char reify = anfds [fd].reify; |
690 | anfds [fd].reify |= flags; |
827 | anfds [fd].reify |= flags; |
691 | |
828 | |
… | |
… | |
695 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
832 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
696 | fdchanges [fdchangecnt - 1] = fd; |
833 | fdchanges [fdchangecnt - 1] = fd; |
697 | } |
834 | } |
698 | } |
835 | } |
699 | |
836 | |
700 | void inline_speed |
837 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
838 | inline_speed void |
701 | fd_kill (EV_P_ int fd) |
839 | fd_kill (EV_P_ int fd) |
702 | { |
840 | { |
703 | ev_io *w; |
841 | ev_io *w; |
704 | |
842 | |
705 | while ((w = (ev_io *)anfds [fd].head)) |
843 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
707 | ev_io_stop (EV_A_ w); |
845 | ev_io_stop (EV_A_ w); |
708 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
846 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
709 | } |
847 | } |
710 | } |
848 | } |
711 | |
849 | |
712 | int inline_size |
850 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
851 | inline_size int |
713 | fd_valid (int fd) |
852 | fd_valid (int fd) |
714 | { |
853 | { |
715 | #ifdef _WIN32 |
854 | #ifdef _WIN32 |
716 | return _get_osfhandle (fd) != -1; |
855 | return _get_osfhandle (fd) != -1; |
717 | #else |
856 | #else |
… | |
… | |
725 | { |
864 | { |
726 | int fd; |
865 | int fd; |
727 | |
866 | |
728 | for (fd = 0; fd < anfdmax; ++fd) |
867 | for (fd = 0; fd < anfdmax; ++fd) |
729 | if (anfds [fd].events) |
868 | if (anfds [fd].events) |
730 | if (!fd_valid (fd) == -1 && errno == EBADF) |
869 | if (!fd_valid (fd) && errno == EBADF) |
731 | fd_kill (EV_A_ fd); |
870 | fd_kill (EV_A_ fd); |
732 | } |
871 | } |
733 | |
872 | |
734 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
873 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
735 | static void noinline |
874 | static void noinline |
… | |
… | |
753 | |
892 | |
754 | for (fd = 0; fd < anfdmax; ++fd) |
893 | for (fd = 0; fd < anfdmax; ++fd) |
755 | if (anfds [fd].events) |
894 | if (anfds [fd].events) |
756 | { |
895 | { |
757 | anfds [fd].events = 0; |
896 | anfds [fd].events = 0; |
|
|
897 | anfds [fd].emask = 0; |
758 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
898 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
759 | } |
899 | } |
760 | } |
900 | } |
761 | |
901 | |
762 | /*****************************************************************************/ |
902 | /*****************************************************************************/ |
|
|
903 | |
|
|
904 | /* |
|
|
905 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
906 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
907 | * the branching factor of the d-tree. |
|
|
908 | */ |
763 | |
909 | |
764 | /* |
910 | /* |
765 | * at the moment we allow libev the luxury of two heaps, |
911 | * at the moment we allow libev the luxury of two heaps, |
766 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
912 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
767 | * which is more cache-efficient. |
913 | * which is more cache-efficient. |
768 | * the difference is about 5% with 50000+ watchers. |
914 | * the difference is about 5% with 50000+ watchers. |
769 | */ |
915 | */ |
770 | #define USE_4HEAP !EV_MINIMAL |
|
|
771 | #if USE_4HEAP |
916 | #if EV_USE_4HEAP |
772 | |
917 | |
|
|
918 | #define DHEAP 4 |
773 | #define HEAP0 3 /* index of first element in heap */ |
919 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
920 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
921 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
774 | |
922 | |
775 | /* towards the root */ |
923 | /* away from the root */ |
776 | void inline_speed |
924 | inline_speed void |
777 | upheap (WT *heap, int k) |
925 | downheap (ANHE *heap, int N, int k) |
778 | { |
926 | { |
779 | WT w = heap [k]; |
927 | ANHE he = heap [k]; |
|
|
928 | ANHE *E = heap + N + HEAP0; |
780 | |
929 | |
781 | for (;;) |
930 | for (;;) |
782 | { |
931 | { |
783 | int p = ((k - HEAP0 - 1) / 4) + HEAP0; |
|
|
784 | |
|
|
785 | if (p >= HEAP0 || heap [p]->at <= w->at) |
|
|
786 | break; |
|
|
787 | |
|
|
788 | heap [k] = heap [p]; |
|
|
789 | ev_active (heap [k]) = k; |
|
|
790 | k = p; |
|
|
791 | } |
|
|
792 | |
|
|
793 | heap [k] = w; |
|
|
794 | ev_active (heap [k]) = k; |
|
|
795 | } |
|
|
796 | |
|
|
797 | /* away from the root */ |
|
|
798 | void inline_speed |
|
|
799 | downheap (WT *heap, int N, int k) |
|
|
800 | { |
|
|
801 | WT w = heap [k]; |
|
|
802 | WT *E = heap + N + HEAP0; |
|
|
803 | |
|
|
804 | for (;;) |
|
|
805 | { |
|
|
806 | ev_tstamp minat; |
932 | ev_tstamp minat; |
807 | WT *minpos; |
933 | ANHE *minpos; |
808 | WT *pos = heap + 4 * (k - HEAP0) + HEAP0; |
934 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
809 | |
935 | |
810 | // find minimum child |
936 | /* find minimum child */ |
811 | if (expect_true (pos +3 < E)) |
937 | if (expect_true (pos + DHEAP - 1 < E)) |
812 | { |
938 | { |
813 | (minpos = pos + 0), (minat = (*minpos)->at); |
939 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
814 | if (pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
940 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
815 | if (pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
941 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
816 | if (pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
942 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
943 | } |
|
|
944 | else if (pos < E) |
|
|
945 | { |
|
|
946 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
947 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
948 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
949 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
817 | } |
950 | } |
818 | else |
951 | else |
819 | { |
|
|
820 | if (pos >= E) |
|
|
821 | break; |
|
|
822 | |
|
|
823 | (minpos = pos + 0), (minat = (*minpos)->at); |
|
|
824 | if (pos + 1 < E && pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
|
|
825 | if (pos + 2 < E && pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
|
|
826 | if (pos + 3 < E && pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
|
|
827 | } |
|
|
828 | |
|
|
829 | if (w->at <= minat) |
|
|
830 | break; |
952 | break; |
831 | |
953 | |
832 | ev_active (*minpos) = k; |
954 | if (ANHE_at (he) <= minat) |
|
|
955 | break; |
|
|
956 | |
833 | heap [k] = *minpos; |
957 | heap [k] = *minpos; |
|
|
958 | ev_active (ANHE_w (*minpos)) = k; |
834 | |
959 | |
835 | k = minpos - heap; |
960 | k = minpos - heap; |
836 | } |
961 | } |
837 | |
962 | |
838 | heap [k] = w; |
963 | heap [k] = he; |
839 | ev_active (heap [k]) = k; |
964 | ev_active (ANHE_w (he)) = k; |
840 | } |
965 | } |
841 | |
966 | |
842 | #else // 4HEAP |
967 | #else /* 4HEAP */ |
843 | |
968 | |
844 | #define HEAP0 1 |
969 | #define HEAP0 1 |
|
|
970 | #define HPARENT(k) ((k) >> 1) |
|
|
971 | #define UPHEAP_DONE(p,k) (!(p)) |
845 | |
972 | |
846 | /* towards the root */ |
973 | /* away from the root */ |
847 | void inline_speed |
974 | inline_speed void |
848 | upheap (WT *heap, int k) |
975 | downheap (ANHE *heap, int N, int k) |
849 | { |
976 | { |
850 | WT w = heap [k]; |
977 | ANHE he = heap [k]; |
851 | |
978 | |
852 | for (;;) |
979 | for (;;) |
853 | { |
980 | { |
854 | int p = k >> 1; |
981 | int c = k << 1; |
855 | |
982 | |
856 | /* maybe we could use a dummy element at heap [0]? */ |
983 | if (c > N + HEAP0 - 1) |
857 | if (!p || heap [p]->at <= w->at) |
|
|
858 | break; |
984 | break; |
859 | |
985 | |
860 | heap [k] = heap [p]; |
986 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
861 | ev_active (heap [k]) = k; |
987 | ? 1 : 0; |
862 | k = p; |
|
|
863 | } |
|
|
864 | |
988 | |
865 | heap [k] = w; |
989 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
866 | ev_active (heap [k]) = k; |
|
|
867 | } |
|
|
868 | |
|
|
869 | /* away from the root */ |
|
|
870 | void inline_speed |
|
|
871 | downheap (WT *heap, int N, int k) |
|
|
872 | { |
|
|
873 | WT w = heap [k]; |
|
|
874 | |
|
|
875 | for (;;) |
|
|
876 | { |
|
|
877 | int c = k << 1; |
|
|
878 | |
|
|
879 | if (c > N) |
|
|
880 | break; |
990 | break; |
881 | |
991 | |
882 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
883 | ? 1 : 0; |
|
|
884 | |
|
|
885 | if (w->at <= heap [c]->at) |
|
|
886 | break; |
|
|
887 | |
|
|
888 | heap [k] = heap [c]; |
992 | heap [k] = heap [c]; |
889 | ((W)heap [k])->active = k; |
993 | ev_active (ANHE_w (heap [k])) = k; |
890 | |
994 | |
891 | k = c; |
995 | k = c; |
892 | } |
996 | } |
893 | |
997 | |
894 | heap [k] = w; |
998 | heap [k] = he; |
|
|
999 | ev_active (ANHE_w (he)) = k; |
|
|
1000 | } |
|
|
1001 | #endif |
|
|
1002 | |
|
|
1003 | /* towards the root */ |
|
|
1004 | inline_speed void |
|
|
1005 | upheap (ANHE *heap, int k) |
|
|
1006 | { |
|
|
1007 | ANHE he = heap [k]; |
|
|
1008 | |
|
|
1009 | for (;;) |
|
|
1010 | { |
|
|
1011 | int p = HPARENT (k); |
|
|
1012 | |
|
|
1013 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1014 | break; |
|
|
1015 | |
|
|
1016 | heap [k] = heap [p]; |
895 | ev_active (heap [k]) = k; |
1017 | ev_active (ANHE_w (heap [k])) = k; |
896 | } |
1018 | k = p; |
897 | #endif |
1019 | } |
898 | |
1020 | |
899 | void inline_size |
1021 | heap [k] = he; |
|
|
1022 | ev_active (ANHE_w (he)) = k; |
|
|
1023 | } |
|
|
1024 | |
|
|
1025 | /* move an element suitably so it is in a correct place */ |
|
|
1026 | inline_size void |
900 | adjustheap (WT *heap, int N, int k) |
1027 | adjustheap (ANHE *heap, int N, int k) |
901 | { |
1028 | { |
|
|
1029 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
902 | upheap (heap, k); |
1030 | upheap (heap, k); |
|
|
1031 | else |
903 | downheap (heap, N, k); |
1032 | downheap (heap, N, k); |
|
|
1033 | } |
|
|
1034 | |
|
|
1035 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1036 | inline_size void |
|
|
1037 | reheap (ANHE *heap, int N) |
|
|
1038 | { |
|
|
1039 | int i; |
|
|
1040 | |
|
|
1041 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1042 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1043 | for (i = 0; i < N; ++i) |
|
|
1044 | upheap (heap, i + HEAP0); |
904 | } |
1045 | } |
905 | |
1046 | |
906 | /*****************************************************************************/ |
1047 | /*****************************************************************************/ |
907 | |
1048 | |
|
|
1049 | /* associate signal watchers to a signal signal */ |
908 | typedef struct |
1050 | typedef struct |
909 | { |
1051 | { |
910 | WL head; |
1052 | WL head; |
911 | EV_ATOMIC_T gotsig; |
1053 | EV_ATOMIC_T gotsig; |
912 | } ANSIG; |
1054 | } ANSIG; |
… | |
… | |
914 | static ANSIG *signals; |
1056 | static ANSIG *signals; |
915 | static int signalmax; |
1057 | static int signalmax; |
916 | |
1058 | |
917 | static EV_ATOMIC_T gotsig; |
1059 | static EV_ATOMIC_T gotsig; |
918 | |
1060 | |
919 | void inline_size |
|
|
920 | signals_init (ANSIG *base, int count) |
|
|
921 | { |
|
|
922 | while (count--) |
|
|
923 | { |
|
|
924 | base->head = 0; |
|
|
925 | base->gotsig = 0; |
|
|
926 | |
|
|
927 | ++base; |
|
|
928 | } |
|
|
929 | } |
|
|
930 | |
|
|
931 | /*****************************************************************************/ |
1061 | /*****************************************************************************/ |
932 | |
1062 | |
933 | void inline_speed |
1063 | /* used to prepare libev internal fd's */ |
|
|
1064 | /* this is not fork-safe */ |
|
|
1065 | inline_speed void |
934 | fd_intern (int fd) |
1066 | fd_intern (int fd) |
935 | { |
1067 | { |
936 | #ifdef _WIN32 |
1068 | #ifdef _WIN32 |
937 | int arg = 1; |
1069 | unsigned long arg = 1; |
938 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1070 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
939 | #else |
1071 | #else |
940 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1072 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
941 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1073 | fcntl (fd, F_SETFL, O_NONBLOCK); |
942 | #endif |
1074 | #endif |
943 | } |
1075 | } |
944 | |
1076 | |
945 | static void noinline |
1077 | static void noinline |
946 | evpipe_init (EV_P) |
1078 | evpipe_init (EV_P) |
947 | { |
1079 | { |
948 | if (!ev_is_active (&pipeev)) |
1080 | if (!ev_is_active (&pipe_w)) |
949 | { |
1081 | { |
950 | #if EV_USE_EVENTFD |
1082 | #if EV_USE_EVENTFD |
951 | if ((evfd = eventfd (0, 0)) >= 0) |
1083 | if ((evfd = eventfd (0, 0)) >= 0) |
952 | { |
1084 | { |
953 | evpipe [0] = -1; |
1085 | evpipe [0] = -1; |
954 | fd_intern (evfd); |
1086 | fd_intern (evfd); |
955 | ev_io_set (&pipeev, evfd, EV_READ); |
1087 | ev_io_set (&pipe_w, evfd, EV_READ); |
956 | } |
1088 | } |
957 | else |
1089 | else |
958 | #endif |
1090 | #endif |
959 | { |
1091 | { |
960 | while (pipe (evpipe)) |
1092 | while (pipe (evpipe)) |
961 | syserr ("(libev) error creating signal/async pipe"); |
1093 | ev_syserr ("(libev) error creating signal/async pipe"); |
962 | |
1094 | |
963 | fd_intern (evpipe [0]); |
1095 | fd_intern (evpipe [0]); |
964 | fd_intern (evpipe [1]); |
1096 | fd_intern (evpipe [1]); |
965 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1097 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
966 | } |
1098 | } |
967 | |
1099 | |
968 | ev_io_start (EV_A_ &pipeev); |
1100 | ev_io_start (EV_A_ &pipe_w); |
969 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1101 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
970 | } |
1102 | } |
971 | } |
1103 | } |
972 | |
1104 | |
973 | void inline_size |
1105 | inline_size void |
974 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1106 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
975 | { |
1107 | { |
976 | if (!*flag) |
1108 | if (!*flag) |
977 | { |
1109 | { |
978 | int old_errno = errno; /* save errno because write might clobber it */ |
1110 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
991 | |
1123 | |
992 | errno = old_errno; |
1124 | errno = old_errno; |
993 | } |
1125 | } |
994 | } |
1126 | } |
995 | |
1127 | |
|
|
1128 | /* called whenever the libev signal pipe */ |
|
|
1129 | /* got some events (signal, async) */ |
996 | static void |
1130 | static void |
997 | pipecb (EV_P_ ev_io *iow, int revents) |
1131 | pipecb (EV_P_ ev_io *iow, int revents) |
998 | { |
1132 | { |
999 | #if EV_USE_EVENTFD |
1133 | #if EV_USE_EVENTFD |
1000 | if (evfd >= 0) |
1134 | if (evfd >= 0) |
… | |
… | |
1056 | ev_feed_signal_event (EV_P_ int signum) |
1190 | ev_feed_signal_event (EV_P_ int signum) |
1057 | { |
1191 | { |
1058 | WL w; |
1192 | WL w; |
1059 | |
1193 | |
1060 | #if EV_MULTIPLICITY |
1194 | #if EV_MULTIPLICITY |
1061 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1195 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1062 | #endif |
1196 | #endif |
1063 | |
1197 | |
1064 | --signum; |
1198 | --signum; |
1065 | |
1199 | |
1066 | if (signum < 0 || signum >= signalmax) |
1200 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1082 | |
1216 | |
1083 | #ifndef WIFCONTINUED |
1217 | #ifndef WIFCONTINUED |
1084 | # define WIFCONTINUED(status) 0 |
1218 | # define WIFCONTINUED(status) 0 |
1085 | #endif |
1219 | #endif |
1086 | |
1220 | |
1087 | void inline_speed |
1221 | /* handle a single child status event */ |
|
|
1222 | inline_speed void |
1088 | child_reap (EV_P_ int chain, int pid, int status) |
1223 | child_reap (EV_P_ int chain, int pid, int status) |
1089 | { |
1224 | { |
1090 | ev_child *w; |
1225 | ev_child *w; |
1091 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1226 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1092 | |
1227 | |
… | |
… | |
1105 | |
1240 | |
1106 | #ifndef WCONTINUED |
1241 | #ifndef WCONTINUED |
1107 | # define WCONTINUED 0 |
1242 | # define WCONTINUED 0 |
1108 | #endif |
1243 | #endif |
1109 | |
1244 | |
|
|
1245 | /* called on sigchld etc., calls waitpid */ |
1110 | static void |
1246 | static void |
1111 | childcb (EV_P_ ev_signal *sw, int revents) |
1247 | childcb (EV_P_ ev_signal *sw, int revents) |
1112 | { |
1248 | { |
1113 | int pid, status; |
1249 | int pid, status; |
1114 | |
1250 | |
… | |
… | |
1195 | /* kqueue is borked on everything but netbsd apparently */ |
1331 | /* kqueue is borked on everything but netbsd apparently */ |
1196 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1332 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1197 | flags &= ~EVBACKEND_KQUEUE; |
1333 | flags &= ~EVBACKEND_KQUEUE; |
1198 | #endif |
1334 | #endif |
1199 | #ifdef __APPLE__ |
1335 | #ifdef __APPLE__ |
1200 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1336 | /* only select works correctly on that "unix-certified" platform */ |
1201 | flags &= ~EVBACKEND_POLL; |
1337 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1338 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1202 | #endif |
1339 | #endif |
1203 | |
1340 | |
1204 | return flags; |
1341 | return flags; |
1205 | } |
1342 | } |
1206 | |
1343 | |
… | |
… | |
1226 | ev_loop_count (EV_P) |
1363 | ev_loop_count (EV_P) |
1227 | { |
1364 | { |
1228 | return loop_count; |
1365 | return loop_count; |
1229 | } |
1366 | } |
1230 | |
1367 | |
|
|
1368 | unsigned int |
|
|
1369 | ev_loop_depth (EV_P) |
|
|
1370 | { |
|
|
1371 | return loop_depth; |
|
|
1372 | } |
|
|
1373 | |
1231 | void |
1374 | void |
1232 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1375 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1233 | { |
1376 | { |
1234 | io_blocktime = interval; |
1377 | io_blocktime = interval; |
1235 | } |
1378 | } |
… | |
… | |
1238 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1381 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1239 | { |
1382 | { |
1240 | timeout_blocktime = interval; |
1383 | timeout_blocktime = interval; |
1241 | } |
1384 | } |
1242 | |
1385 | |
|
|
1386 | /* initialise a loop structure, must be zero-initialised */ |
1243 | static void noinline |
1387 | static void noinline |
1244 | loop_init (EV_P_ unsigned int flags) |
1388 | loop_init (EV_P_ unsigned int flags) |
1245 | { |
1389 | { |
1246 | if (!backend) |
1390 | if (!backend) |
1247 | { |
1391 | { |
|
|
1392 | #if EV_USE_REALTIME |
|
|
1393 | if (!have_realtime) |
|
|
1394 | { |
|
|
1395 | struct timespec ts; |
|
|
1396 | |
|
|
1397 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1398 | have_realtime = 1; |
|
|
1399 | } |
|
|
1400 | #endif |
|
|
1401 | |
1248 | #if EV_USE_MONOTONIC |
1402 | #if EV_USE_MONOTONIC |
|
|
1403 | if (!have_monotonic) |
1249 | { |
1404 | { |
1250 | struct timespec ts; |
1405 | struct timespec ts; |
|
|
1406 | |
1251 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1407 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1252 | have_monotonic = 1; |
1408 | have_monotonic = 1; |
1253 | } |
1409 | } |
1254 | #endif |
1410 | #endif |
1255 | |
1411 | |
1256 | ev_rt_now = ev_time (); |
1412 | ev_rt_now = ev_time (); |
1257 | mn_now = get_clock (); |
1413 | mn_now = get_clock (); |
1258 | now_floor = mn_now; |
1414 | now_floor = mn_now; |
… | |
… | |
1295 | #endif |
1451 | #endif |
1296 | #if EV_USE_SELECT |
1452 | #if EV_USE_SELECT |
1297 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1453 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1298 | #endif |
1454 | #endif |
1299 | |
1455 | |
|
|
1456 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1457 | |
1300 | ev_init (&pipeev, pipecb); |
1458 | ev_init (&pipe_w, pipecb); |
1301 | ev_set_priority (&pipeev, EV_MAXPRI); |
1459 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1302 | } |
1460 | } |
1303 | } |
1461 | } |
1304 | |
1462 | |
|
|
1463 | /* free up a loop structure */ |
1305 | static void noinline |
1464 | static void noinline |
1306 | loop_destroy (EV_P) |
1465 | loop_destroy (EV_P) |
1307 | { |
1466 | { |
1308 | int i; |
1467 | int i; |
1309 | |
1468 | |
1310 | if (ev_is_active (&pipeev)) |
1469 | if (ev_is_active (&pipe_w)) |
1311 | { |
1470 | { |
1312 | ev_ref (EV_A); /* signal watcher */ |
1471 | ev_ref (EV_A); /* signal watcher */ |
1313 | ev_io_stop (EV_A_ &pipeev); |
1472 | ev_io_stop (EV_A_ &pipe_w); |
1314 | |
1473 | |
1315 | #if EV_USE_EVENTFD |
1474 | #if EV_USE_EVENTFD |
1316 | if (evfd >= 0) |
1475 | if (evfd >= 0) |
1317 | close (evfd); |
1476 | close (evfd); |
1318 | #endif |
1477 | #endif |
… | |
… | |
1357 | } |
1516 | } |
1358 | |
1517 | |
1359 | ev_free (anfds); anfdmax = 0; |
1518 | ev_free (anfds); anfdmax = 0; |
1360 | |
1519 | |
1361 | /* have to use the microsoft-never-gets-it-right macro */ |
1520 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1521 | array_free (rfeed, EMPTY); |
1362 | array_free (fdchange, EMPTY); |
1522 | array_free (fdchange, EMPTY); |
1363 | array_free (timer, EMPTY); |
1523 | array_free (timer, EMPTY); |
1364 | #if EV_PERIODIC_ENABLE |
1524 | #if EV_PERIODIC_ENABLE |
1365 | array_free (periodic, EMPTY); |
1525 | array_free (periodic, EMPTY); |
1366 | #endif |
1526 | #endif |
… | |
… | |
1375 | |
1535 | |
1376 | backend = 0; |
1536 | backend = 0; |
1377 | } |
1537 | } |
1378 | |
1538 | |
1379 | #if EV_USE_INOTIFY |
1539 | #if EV_USE_INOTIFY |
1380 | void inline_size infy_fork (EV_P); |
1540 | inline_size void infy_fork (EV_P); |
1381 | #endif |
1541 | #endif |
1382 | |
1542 | |
1383 | void inline_size |
1543 | inline_size void |
1384 | loop_fork (EV_P) |
1544 | loop_fork (EV_P) |
1385 | { |
1545 | { |
1386 | #if EV_USE_PORT |
1546 | #if EV_USE_PORT |
1387 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1547 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1388 | #endif |
1548 | #endif |
… | |
… | |
1394 | #endif |
1554 | #endif |
1395 | #if EV_USE_INOTIFY |
1555 | #if EV_USE_INOTIFY |
1396 | infy_fork (EV_A); |
1556 | infy_fork (EV_A); |
1397 | #endif |
1557 | #endif |
1398 | |
1558 | |
1399 | if (ev_is_active (&pipeev)) |
1559 | if (ev_is_active (&pipe_w)) |
1400 | { |
1560 | { |
1401 | /* this "locks" the handlers against writing to the pipe */ |
1561 | /* this "locks" the handlers against writing to the pipe */ |
1402 | /* while we modify the fd vars */ |
1562 | /* while we modify the fd vars */ |
1403 | gotsig = 1; |
1563 | gotsig = 1; |
1404 | #if EV_ASYNC_ENABLE |
1564 | #if EV_ASYNC_ENABLE |
1405 | gotasync = 1; |
1565 | gotasync = 1; |
1406 | #endif |
1566 | #endif |
1407 | |
1567 | |
1408 | ev_ref (EV_A); |
1568 | ev_ref (EV_A); |
1409 | ev_io_stop (EV_A_ &pipeev); |
1569 | ev_io_stop (EV_A_ &pipe_w); |
1410 | |
1570 | |
1411 | #if EV_USE_EVENTFD |
1571 | #if EV_USE_EVENTFD |
1412 | if (evfd >= 0) |
1572 | if (evfd >= 0) |
1413 | close (evfd); |
1573 | close (evfd); |
1414 | #endif |
1574 | #endif |
… | |
… | |
1419 | close (evpipe [1]); |
1579 | close (evpipe [1]); |
1420 | } |
1580 | } |
1421 | |
1581 | |
1422 | evpipe_init (EV_A); |
1582 | evpipe_init (EV_A); |
1423 | /* now iterate over everything, in case we missed something */ |
1583 | /* now iterate over everything, in case we missed something */ |
1424 | pipecb (EV_A_ &pipeev, EV_READ); |
1584 | pipecb (EV_A_ &pipe_w, EV_READ); |
1425 | } |
1585 | } |
1426 | |
1586 | |
1427 | postfork = 0; |
1587 | postfork = 0; |
1428 | } |
1588 | } |
1429 | |
1589 | |
1430 | #if EV_MULTIPLICITY |
1590 | #if EV_MULTIPLICITY |
|
|
1591 | |
1431 | struct ev_loop * |
1592 | struct ev_loop * |
1432 | ev_loop_new (unsigned int flags) |
1593 | ev_loop_new (unsigned int flags) |
1433 | { |
1594 | { |
1434 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1595 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1435 | |
1596 | |
… | |
… | |
1453 | void |
1614 | void |
1454 | ev_loop_fork (EV_P) |
1615 | ev_loop_fork (EV_P) |
1455 | { |
1616 | { |
1456 | postfork = 1; /* must be in line with ev_default_fork */ |
1617 | postfork = 1; /* must be in line with ev_default_fork */ |
1457 | } |
1618 | } |
|
|
1619 | |
|
|
1620 | #if EV_VERIFY |
|
|
1621 | static void noinline |
|
|
1622 | verify_watcher (EV_P_ W w) |
|
|
1623 | { |
|
|
1624 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1625 | |
|
|
1626 | if (w->pending) |
|
|
1627 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1628 | } |
|
|
1629 | |
|
|
1630 | static void noinline |
|
|
1631 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1632 | { |
|
|
1633 | int i; |
|
|
1634 | |
|
|
1635 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1636 | { |
|
|
1637 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1638 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1639 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1640 | |
|
|
1641 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1642 | } |
|
|
1643 | } |
|
|
1644 | |
|
|
1645 | static void noinline |
|
|
1646 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1647 | { |
|
|
1648 | while (cnt--) |
|
|
1649 | { |
|
|
1650 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1651 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1652 | } |
|
|
1653 | } |
|
|
1654 | #endif |
|
|
1655 | |
|
|
1656 | void |
|
|
1657 | ev_loop_verify (EV_P) |
|
|
1658 | { |
|
|
1659 | #if EV_VERIFY |
|
|
1660 | int i; |
|
|
1661 | WL w; |
|
|
1662 | |
|
|
1663 | assert (activecnt >= -1); |
|
|
1664 | |
|
|
1665 | assert (fdchangemax >= fdchangecnt); |
|
|
1666 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1667 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1668 | |
|
|
1669 | assert (anfdmax >= 0); |
|
|
1670 | for (i = 0; i < anfdmax; ++i) |
|
|
1671 | for (w = anfds [i].head; w; w = w->next) |
|
|
1672 | { |
|
|
1673 | verify_watcher (EV_A_ (W)w); |
|
|
1674 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1675 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1676 | } |
|
|
1677 | |
|
|
1678 | assert (timermax >= timercnt); |
|
|
1679 | verify_heap (EV_A_ timers, timercnt); |
|
|
1680 | |
|
|
1681 | #if EV_PERIODIC_ENABLE |
|
|
1682 | assert (periodicmax >= periodiccnt); |
|
|
1683 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1684 | #endif |
|
|
1685 | |
|
|
1686 | for (i = NUMPRI; i--; ) |
|
|
1687 | { |
|
|
1688 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1689 | #if EV_IDLE_ENABLE |
|
|
1690 | assert (idleall >= 0); |
|
|
1691 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1692 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1693 | #endif |
|
|
1694 | } |
|
|
1695 | |
|
|
1696 | #if EV_FORK_ENABLE |
|
|
1697 | assert (forkmax >= forkcnt); |
|
|
1698 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1699 | #endif |
|
|
1700 | |
|
|
1701 | #if EV_ASYNC_ENABLE |
|
|
1702 | assert (asyncmax >= asynccnt); |
|
|
1703 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1704 | #endif |
|
|
1705 | |
|
|
1706 | assert (preparemax >= preparecnt); |
|
|
1707 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1708 | |
|
|
1709 | assert (checkmax >= checkcnt); |
|
|
1710 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1711 | |
|
|
1712 | # if 0 |
|
|
1713 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1714 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1458 | #endif |
1715 | # endif |
|
|
1716 | #endif |
|
|
1717 | } |
|
|
1718 | |
|
|
1719 | #endif /* multiplicity */ |
1459 | |
1720 | |
1460 | #if EV_MULTIPLICITY |
1721 | #if EV_MULTIPLICITY |
1461 | struct ev_loop * |
1722 | struct ev_loop * |
1462 | ev_default_loop_init (unsigned int flags) |
1723 | ev_default_loop_init (unsigned int flags) |
1463 | #else |
1724 | #else |
… | |
… | |
1496 | { |
1757 | { |
1497 | #if EV_MULTIPLICITY |
1758 | #if EV_MULTIPLICITY |
1498 | struct ev_loop *loop = ev_default_loop_ptr; |
1759 | struct ev_loop *loop = ev_default_loop_ptr; |
1499 | #endif |
1760 | #endif |
1500 | |
1761 | |
|
|
1762 | ev_default_loop_ptr = 0; |
|
|
1763 | |
1501 | #ifndef _WIN32 |
1764 | #ifndef _WIN32 |
1502 | ev_ref (EV_A); /* child watcher */ |
1765 | ev_ref (EV_A); /* child watcher */ |
1503 | ev_signal_stop (EV_A_ &childev); |
1766 | ev_signal_stop (EV_A_ &childev); |
1504 | #endif |
1767 | #endif |
1505 | |
1768 | |
… | |
… | |
1511 | { |
1774 | { |
1512 | #if EV_MULTIPLICITY |
1775 | #if EV_MULTIPLICITY |
1513 | struct ev_loop *loop = ev_default_loop_ptr; |
1776 | struct ev_loop *loop = ev_default_loop_ptr; |
1514 | #endif |
1777 | #endif |
1515 | |
1778 | |
1516 | if (backend) |
|
|
1517 | postfork = 1; /* must be in line with ev_loop_fork */ |
1779 | postfork = 1; /* must be in line with ev_loop_fork */ |
1518 | } |
1780 | } |
1519 | |
1781 | |
1520 | /*****************************************************************************/ |
1782 | /*****************************************************************************/ |
1521 | |
1783 | |
1522 | void |
1784 | void |
1523 | ev_invoke (EV_P_ void *w, int revents) |
1785 | ev_invoke (EV_P_ void *w, int revents) |
1524 | { |
1786 | { |
1525 | EV_CB_INVOKE ((W)w, revents); |
1787 | EV_CB_INVOKE ((W)w, revents); |
1526 | } |
1788 | } |
1527 | |
1789 | |
1528 | void inline_speed |
1790 | inline_speed void |
1529 | call_pending (EV_P) |
1791 | call_pending (EV_P) |
1530 | { |
1792 | { |
1531 | int pri; |
1793 | int pri; |
1532 | |
1794 | |
1533 | for (pri = NUMPRI; pri--; ) |
1795 | for (pri = NUMPRI; pri--; ) |
1534 | while (pendingcnt [pri]) |
1796 | while (pendingcnt [pri]) |
1535 | { |
1797 | { |
1536 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1798 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1537 | |
1799 | |
1538 | if (expect_true (p->w)) |
|
|
1539 | { |
|
|
1540 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1800 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1801 | /* ^ this is no longer true, as pending_w could be here */ |
1541 | |
1802 | |
1542 | p->w->pending = 0; |
1803 | p->w->pending = 0; |
1543 | EV_CB_INVOKE (p->w, p->events); |
1804 | EV_CB_INVOKE (p->w, p->events); |
1544 | } |
1805 | EV_FREQUENT_CHECK; |
1545 | } |
1806 | } |
1546 | } |
1807 | } |
1547 | |
1808 | |
1548 | #if EV_IDLE_ENABLE |
1809 | #if EV_IDLE_ENABLE |
1549 | void inline_size |
1810 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1811 | /* only when higher priorities are idle" logic */ |
|
|
1812 | inline_size void |
1550 | idle_reify (EV_P) |
1813 | idle_reify (EV_P) |
1551 | { |
1814 | { |
1552 | if (expect_false (idleall)) |
1815 | if (expect_false (idleall)) |
1553 | { |
1816 | { |
1554 | int pri; |
1817 | int pri; |
… | |
… | |
1566 | } |
1829 | } |
1567 | } |
1830 | } |
1568 | } |
1831 | } |
1569 | #endif |
1832 | #endif |
1570 | |
1833 | |
1571 | void inline_size |
1834 | /* make timers pending */ |
|
|
1835 | inline_size void |
1572 | timers_reify (EV_P) |
1836 | timers_reify (EV_P) |
1573 | { |
1837 | { |
|
|
1838 | EV_FREQUENT_CHECK; |
|
|
1839 | |
1574 | while (timercnt && ev_at (timers [HEAP0]) <= mn_now) |
1840 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1575 | { |
1841 | { |
1576 | ev_timer *w = (ev_timer *)timers [HEAP0]; |
1842 | do |
1577 | |
|
|
1578 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1579 | |
|
|
1580 | /* first reschedule or stop timer */ |
|
|
1581 | if (w->repeat) |
|
|
1582 | { |
1843 | { |
|
|
1844 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1845 | |
|
|
1846 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1847 | |
|
|
1848 | /* first reschedule or stop timer */ |
|
|
1849 | if (w->repeat) |
|
|
1850 | { |
|
|
1851 | ev_at (w) += w->repeat; |
|
|
1852 | if (ev_at (w) < mn_now) |
|
|
1853 | ev_at (w) = mn_now; |
|
|
1854 | |
1583 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1855 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1584 | |
1856 | |
1585 | ev_at (w) += w->repeat; |
1857 | ANHE_at_cache (timers [HEAP0]); |
1586 | if (ev_at (w) < mn_now) |
|
|
1587 | ev_at (w) = mn_now; |
|
|
1588 | |
|
|
1589 | downheap (timers, timercnt, HEAP0); |
1858 | downheap (timers, timercnt, HEAP0); |
|
|
1859 | } |
|
|
1860 | else |
|
|
1861 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1862 | |
|
|
1863 | EV_FREQUENT_CHECK; |
|
|
1864 | feed_reverse (EV_A_ (W)w); |
1590 | } |
1865 | } |
1591 | else |
1866 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1592 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1593 | |
1867 | |
1594 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1868 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1595 | } |
1869 | } |
1596 | } |
1870 | } |
1597 | |
1871 | |
1598 | #if EV_PERIODIC_ENABLE |
1872 | #if EV_PERIODIC_ENABLE |
1599 | void inline_size |
1873 | /* make periodics pending */ |
|
|
1874 | inline_size void |
1600 | periodics_reify (EV_P) |
1875 | periodics_reify (EV_P) |
1601 | { |
1876 | { |
|
|
1877 | EV_FREQUENT_CHECK; |
|
|
1878 | |
1602 | while (periodiccnt && ev_at (periodics [HEAP0]) <= ev_rt_now) |
1879 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1603 | { |
1880 | { |
1604 | ev_periodic *w = (ev_periodic *)periodics [HEAP0]; |
1881 | int feed_count = 0; |
1605 | |
1882 | |
1606 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1883 | do |
1607 | |
|
|
1608 | /* first reschedule or stop timer */ |
|
|
1609 | if (w->reschedule_cb) |
|
|
1610 | { |
1884 | { |
|
|
1885 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1886 | |
|
|
1887 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1888 | |
|
|
1889 | /* first reschedule or stop timer */ |
|
|
1890 | if (w->reschedule_cb) |
|
|
1891 | { |
1611 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1892 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1893 | |
1612 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
1894 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1895 | |
|
|
1896 | ANHE_at_cache (periodics [HEAP0]); |
1613 | downheap (periodics, periodiccnt, 1); |
1897 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1898 | } |
|
|
1899 | else if (w->interval) |
|
|
1900 | { |
|
|
1901 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1902 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1903 | /* this might happen because of floating point inexactness */ |
|
|
1904 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1905 | { |
|
|
1906 | ev_at (w) += w->interval; |
|
|
1907 | |
|
|
1908 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1909 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1910 | /* has effectively asked to get triggered more often than possible */ |
|
|
1911 | if (ev_at (w) < ev_rt_now) |
|
|
1912 | ev_at (w) = ev_rt_now; |
|
|
1913 | } |
|
|
1914 | |
|
|
1915 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1916 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1917 | } |
|
|
1918 | else |
|
|
1919 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1920 | |
|
|
1921 | EV_FREQUENT_CHECK; |
|
|
1922 | feed_reverse (EV_A_ (W)w); |
1614 | } |
1923 | } |
1615 | else if (w->interval) |
1924 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1616 | { |
|
|
1617 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1618 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1619 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1620 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1621 | } |
|
|
1622 | else |
|
|
1623 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1624 | |
1925 | |
1625 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1926 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1626 | } |
1927 | } |
1627 | } |
1928 | } |
1628 | |
1929 | |
|
|
1930 | /* simply recalculate all periodics */ |
|
|
1931 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1629 | static void noinline |
1932 | static void noinline |
1630 | periodics_reschedule (EV_P) |
1933 | periodics_reschedule (EV_P) |
1631 | { |
1934 | { |
1632 | int i; |
1935 | int i; |
1633 | |
1936 | |
1634 | /* adjust periodics after time jump */ |
1937 | /* adjust periodics after time jump */ |
1635 | for (i = 1; i <= periodiccnt; ++i) |
1938 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1636 | { |
1939 | { |
1637 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1940 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1638 | |
1941 | |
1639 | if (w->reschedule_cb) |
1942 | if (w->reschedule_cb) |
1640 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1943 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1641 | else if (w->interval) |
1944 | else if (w->interval) |
1642 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1945 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1946 | |
|
|
1947 | ANHE_at_cache (periodics [i]); |
|
|
1948 | } |
|
|
1949 | |
|
|
1950 | reheap (periodics, periodiccnt); |
|
|
1951 | } |
|
|
1952 | #endif |
|
|
1953 | |
|
|
1954 | /* adjust all timers by a given offset */ |
|
|
1955 | static void noinline |
|
|
1956 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1957 | { |
|
|
1958 | int i; |
|
|
1959 | |
|
|
1960 | for (i = 0; i < timercnt; ++i) |
1643 | } |
1961 | { |
1644 | |
1962 | ANHE *he = timers + i + HEAP0; |
1645 | /* now rebuild the heap */ |
1963 | ANHE_w (*he)->at += adjust; |
1646 | for (i = periodiccnt >> 1; --i; ) |
1964 | ANHE_at_cache (*he); |
1647 | downheap (periodics, periodiccnt, i + HEAP0); |
1965 | } |
1648 | } |
1966 | } |
1649 | #endif |
|
|
1650 | |
1967 | |
1651 | void inline_speed |
1968 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
1969 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
1970 | inline_speed void |
1652 | time_update (EV_P_ ev_tstamp max_block) |
1971 | time_update (EV_P_ ev_tstamp max_block) |
1653 | { |
1972 | { |
1654 | int i; |
|
|
1655 | |
|
|
1656 | #if EV_USE_MONOTONIC |
1973 | #if EV_USE_MONOTONIC |
1657 | if (expect_true (have_monotonic)) |
1974 | if (expect_true (have_monotonic)) |
1658 | { |
1975 | { |
|
|
1976 | int i; |
1659 | ev_tstamp odiff = rtmn_diff; |
1977 | ev_tstamp odiff = rtmn_diff; |
1660 | |
1978 | |
1661 | mn_now = get_clock (); |
1979 | mn_now = get_clock (); |
1662 | |
1980 | |
1663 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
1981 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1689 | ev_rt_now = ev_time (); |
2007 | ev_rt_now = ev_time (); |
1690 | mn_now = get_clock (); |
2008 | mn_now = get_clock (); |
1691 | now_floor = mn_now; |
2009 | now_floor = mn_now; |
1692 | } |
2010 | } |
1693 | |
2011 | |
|
|
2012 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2013 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1694 | # if EV_PERIODIC_ENABLE |
2014 | # if EV_PERIODIC_ENABLE |
1695 | periodics_reschedule (EV_A); |
2015 | periodics_reschedule (EV_A); |
1696 | # endif |
2016 | # endif |
1697 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1698 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1699 | } |
2017 | } |
1700 | else |
2018 | else |
1701 | #endif |
2019 | #endif |
1702 | { |
2020 | { |
1703 | ev_rt_now = ev_time (); |
2021 | ev_rt_now = ev_time (); |
1704 | |
2022 | |
1705 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2023 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1706 | { |
2024 | { |
|
|
2025 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2026 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1707 | #if EV_PERIODIC_ENABLE |
2027 | #if EV_PERIODIC_ENABLE |
1708 | periodics_reschedule (EV_A); |
2028 | periodics_reschedule (EV_A); |
1709 | #endif |
2029 | #endif |
1710 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1711 | for (i = 1; i <= timercnt; ++i) |
|
|
1712 | ev_at (timers [i]) += ev_rt_now - mn_now; |
|
|
1713 | } |
2030 | } |
1714 | |
2031 | |
1715 | mn_now = ev_rt_now; |
2032 | mn_now = ev_rt_now; |
1716 | } |
2033 | } |
1717 | } |
2034 | } |
1718 | |
2035 | |
1719 | void |
2036 | void |
1720 | ev_ref (EV_P) |
|
|
1721 | { |
|
|
1722 | ++activecnt; |
|
|
1723 | } |
|
|
1724 | |
|
|
1725 | void |
|
|
1726 | ev_unref (EV_P) |
|
|
1727 | { |
|
|
1728 | --activecnt; |
|
|
1729 | } |
|
|
1730 | |
|
|
1731 | static int loop_done; |
|
|
1732 | |
|
|
1733 | void |
|
|
1734 | ev_loop (EV_P_ int flags) |
2037 | ev_loop (EV_P_ int flags) |
1735 | { |
2038 | { |
|
|
2039 | ++loop_depth; |
|
|
2040 | |
1736 | loop_done = EVUNLOOP_CANCEL; |
2041 | loop_done = EVUNLOOP_CANCEL; |
1737 | |
2042 | |
1738 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2043 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1739 | |
2044 | |
1740 | do |
2045 | do |
1741 | { |
2046 | { |
|
|
2047 | #if EV_VERIFY >= 2 |
|
|
2048 | ev_loop_verify (EV_A); |
|
|
2049 | #endif |
|
|
2050 | |
1742 | #ifndef _WIN32 |
2051 | #ifndef _WIN32 |
1743 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2052 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1744 | if (expect_false (getpid () != curpid)) |
2053 | if (expect_false (getpid () != curpid)) |
1745 | { |
2054 | { |
1746 | curpid = getpid (); |
2055 | curpid = getpid (); |
… | |
… | |
1763 | { |
2072 | { |
1764 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2073 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1765 | call_pending (EV_A); |
2074 | call_pending (EV_A); |
1766 | } |
2075 | } |
1767 | |
2076 | |
1768 | if (expect_false (!activecnt)) |
|
|
1769 | break; |
|
|
1770 | |
|
|
1771 | /* we might have forked, so reify kernel state if necessary */ |
2077 | /* we might have forked, so reify kernel state if necessary */ |
1772 | if (expect_false (postfork)) |
2078 | if (expect_false (postfork)) |
1773 | loop_fork (EV_A); |
2079 | loop_fork (EV_A); |
1774 | |
2080 | |
1775 | /* update fd-related kernel structures */ |
2081 | /* update fd-related kernel structures */ |
… | |
… | |
1780 | ev_tstamp waittime = 0.; |
2086 | ev_tstamp waittime = 0.; |
1781 | ev_tstamp sleeptime = 0.; |
2087 | ev_tstamp sleeptime = 0.; |
1782 | |
2088 | |
1783 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2089 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1784 | { |
2090 | { |
|
|
2091 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2092 | ev_tstamp prev_mn_now = mn_now; |
|
|
2093 | |
1785 | /* update time to cancel out callback processing overhead */ |
2094 | /* update time to cancel out callback processing overhead */ |
1786 | time_update (EV_A_ 1e100); |
2095 | time_update (EV_A_ 1e100); |
1787 | |
2096 | |
1788 | waittime = MAX_BLOCKTIME; |
2097 | waittime = MAX_BLOCKTIME; |
1789 | |
2098 | |
1790 | if (timercnt) |
2099 | if (timercnt) |
1791 | { |
2100 | { |
1792 | ev_tstamp to = ev_at (timers [HEAP0]) - mn_now + backend_fudge; |
2101 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1793 | if (waittime > to) waittime = to; |
2102 | if (waittime > to) waittime = to; |
1794 | } |
2103 | } |
1795 | |
2104 | |
1796 | #if EV_PERIODIC_ENABLE |
2105 | #if EV_PERIODIC_ENABLE |
1797 | if (periodiccnt) |
2106 | if (periodiccnt) |
1798 | { |
2107 | { |
1799 | ev_tstamp to = ev_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2108 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1800 | if (waittime > to) waittime = to; |
2109 | if (waittime > to) waittime = to; |
1801 | } |
2110 | } |
1802 | #endif |
2111 | #endif |
1803 | |
2112 | |
|
|
2113 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1804 | if (expect_false (waittime < timeout_blocktime)) |
2114 | if (expect_false (waittime < timeout_blocktime)) |
1805 | waittime = timeout_blocktime; |
2115 | waittime = timeout_blocktime; |
1806 | |
2116 | |
1807 | sleeptime = waittime - backend_fudge; |
2117 | /* extra check because io_blocktime is commonly 0 */ |
1808 | |
|
|
1809 | if (expect_true (sleeptime > io_blocktime)) |
2118 | if (expect_false (io_blocktime)) |
1810 | sleeptime = io_blocktime; |
|
|
1811 | |
|
|
1812 | if (sleeptime) |
|
|
1813 | { |
2119 | { |
|
|
2120 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2121 | |
|
|
2122 | if (sleeptime > waittime - backend_fudge) |
|
|
2123 | sleeptime = waittime - backend_fudge; |
|
|
2124 | |
|
|
2125 | if (expect_true (sleeptime > 0.)) |
|
|
2126 | { |
1814 | ev_sleep (sleeptime); |
2127 | ev_sleep (sleeptime); |
1815 | waittime -= sleeptime; |
2128 | waittime -= sleeptime; |
|
|
2129 | } |
1816 | } |
2130 | } |
1817 | } |
2131 | } |
1818 | |
2132 | |
1819 | ++loop_count; |
2133 | ++loop_count; |
1820 | backend_poll (EV_A_ waittime); |
2134 | backend_poll (EV_A_ waittime); |
… | |
… | |
1846 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2160 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
1847 | )); |
2161 | )); |
1848 | |
2162 | |
1849 | if (loop_done == EVUNLOOP_ONE) |
2163 | if (loop_done == EVUNLOOP_ONE) |
1850 | loop_done = EVUNLOOP_CANCEL; |
2164 | loop_done = EVUNLOOP_CANCEL; |
|
|
2165 | |
|
|
2166 | --loop_depth; |
1851 | } |
2167 | } |
1852 | |
2168 | |
1853 | void |
2169 | void |
1854 | ev_unloop (EV_P_ int how) |
2170 | ev_unloop (EV_P_ int how) |
1855 | { |
2171 | { |
1856 | loop_done = how; |
2172 | loop_done = how; |
1857 | } |
2173 | } |
1858 | |
2174 | |
|
|
2175 | void |
|
|
2176 | ev_ref (EV_P) |
|
|
2177 | { |
|
|
2178 | ++activecnt; |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | void |
|
|
2182 | ev_unref (EV_P) |
|
|
2183 | { |
|
|
2184 | --activecnt; |
|
|
2185 | } |
|
|
2186 | |
|
|
2187 | void |
|
|
2188 | ev_now_update (EV_P) |
|
|
2189 | { |
|
|
2190 | time_update (EV_A_ 1e100); |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | void |
|
|
2194 | ev_suspend (EV_P) |
|
|
2195 | { |
|
|
2196 | ev_now_update (EV_A); |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | void |
|
|
2200 | ev_resume (EV_P) |
|
|
2201 | { |
|
|
2202 | ev_tstamp mn_prev = mn_now; |
|
|
2203 | |
|
|
2204 | ev_now_update (EV_A); |
|
|
2205 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2206 | #if EV_PERIODIC_ENABLE |
|
|
2207 | /* TODO: really do this? */ |
|
|
2208 | periodics_reschedule (EV_A); |
|
|
2209 | #endif |
|
|
2210 | } |
|
|
2211 | |
1859 | /*****************************************************************************/ |
2212 | /*****************************************************************************/ |
|
|
2213 | /* singly-linked list management, used when the expected list length is short */ |
1860 | |
2214 | |
1861 | void inline_size |
2215 | inline_size void |
1862 | wlist_add (WL *head, WL elem) |
2216 | wlist_add (WL *head, WL elem) |
1863 | { |
2217 | { |
1864 | elem->next = *head; |
2218 | elem->next = *head; |
1865 | *head = elem; |
2219 | *head = elem; |
1866 | } |
2220 | } |
1867 | |
2221 | |
1868 | void inline_size |
2222 | inline_size void |
1869 | wlist_del (WL *head, WL elem) |
2223 | wlist_del (WL *head, WL elem) |
1870 | { |
2224 | { |
1871 | while (*head) |
2225 | while (*head) |
1872 | { |
2226 | { |
1873 | if (*head == elem) |
2227 | if (*head == elem) |
… | |
… | |
1878 | |
2232 | |
1879 | head = &(*head)->next; |
2233 | head = &(*head)->next; |
1880 | } |
2234 | } |
1881 | } |
2235 | } |
1882 | |
2236 | |
1883 | void inline_speed |
2237 | /* internal, faster, version of ev_clear_pending */ |
|
|
2238 | inline_speed void |
1884 | clear_pending (EV_P_ W w) |
2239 | clear_pending (EV_P_ W w) |
1885 | { |
2240 | { |
1886 | if (w->pending) |
2241 | if (w->pending) |
1887 | { |
2242 | { |
1888 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2243 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1889 | w->pending = 0; |
2244 | w->pending = 0; |
1890 | } |
2245 | } |
1891 | } |
2246 | } |
1892 | |
2247 | |
1893 | int |
2248 | int |
… | |
… | |
1897 | int pending = w_->pending; |
2252 | int pending = w_->pending; |
1898 | |
2253 | |
1899 | if (expect_true (pending)) |
2254 | if (expect_true (pending)) |
1900 | { |
2255 | { |
1901 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2256 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2257 | p->w = (W)&pending_w; |
1902 | w_->pending = 0; |
2258 | w_->pending = 0; |
1903 | p->w = 0; |
|
|
1904 | return p->events; |
2259 | return p->events; |
1905 | } |
2260 | } |
1906 | else |
2261 | else |
1907 | return 0; |
2262 | return 0; |
1908 | } |
2263 | } |
1909 | |
2264 | |
1910 | void inline_size |
2265 | inline_size void |
1911 | pri_adjust (EV_P_ W w) |
2266 | pri_adjust (EV_P_ W w) |
1912 | { |
2267 | { |
1913 | int pri = w->priority; |
2268 | int pri = ev_priority (w); |
1914 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2269 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1915 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2270 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1916 | w->priority = pri; |
2271 | ev_set_priority (w, pri); |
1917 | } |
2272 | } |
1918 | |
2273 | |
1919 | void inline_speed |
2274 | inline_speed void |
1920 | ev_start (EV_P_ W w, int active) |
2275 | ev_start (EV_P_ W w, int active) |
1921 | { |
2276 | { |
1922 | pri_adjust (EV_A_ w); |
2277 | pri_adjust (EV_A_ w); |
1923 | w->active = active; |
2278 | w->active = active; |
1924 | ev_ref (EV_A); |
2279 | ev_ref (EV_A); |
1925 | } |
2280 | } |
1926 | |
2281 | |
1927 | void inline_size |
2282 | inline_size void |
1928 | ev_stop (EV_P_ W w) |
2283 | ev_stop (EV_P_ W w) |
1929 | { |
2284 | { |
1930 | ev_unref (EV_A); |
2285 | ev_unref (EV_A); |
1931 | w->active = 0; |
2286 | w->active = 0; |
1932 | } |
2287 | } |
… | |
… | |
1939 | int fd = w->fd; |
2294 | int fd = w->fd; |
1940 | |
2295 | |
1941 | if (expect_false (ev_is_active (w))) |
2296 | if (expect_false (ev_is_active (w))) |
1942 | return; |
2297 | return; |
1943 | |
2298 | |
1944 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2299 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2300 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2301 | |
|
|
2302 | EV_FREQUENT_CHECK; |
1945 | |
2303 | |
1946 | ev_start (EV_A_ (W)w, 1); |
2304 | ev_start (EV_A_ (W)w, 1); |
1947 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2305 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1948 | wlist_add (&anfds[fd].head, (WL)w); |
2306 | wlist_add (&anfds[fd].head, (WL)w); |
1949 | |
2307 | |
1950 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2308 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
1951 | w->events &= ~EV_IOFDSET; |
2309 | w->events &= ~EV__IOFDSET; |
|
|
2310 | |
|
|
2311 | EV_FREQUENT_CHECK; |
1952 | } |
2312 | } |
1953 | |
2313 | |
1954 | void noinline |
2314 | void noinline |
1955 | ev_io_stop (EV_P_ ev_io *w) |
2315 | ev_io_stop (EV_P_ ev_io *w) |
1956 | { |
2316 | { |
1957 | clear_pending (EV_A_ (W)w); |
2317 | clear_pending (EV_A_ (W)w); |
1958 | if (expect_false (!ev_is_active (w))) |
2318 | if (expect_false (!ev_is_active (w))) |
1959 | return; |
2319 | return; |
1960 | |
2320 | |
1961 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2321 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2322 | |
|
|
2323 | EV_FREQUENT_CHECK; |
1962 | |
2324 | |
1963 | wlist_del (&anfds[w->fd].head, (WL)w); |
2325 | wlist_del (&anfds[w->fd].head, (WL)w); |
1964 | ev_stop (EV_A_ (W)w); |
2326 | ev_stop (EV_A_ (W)w); |
1965 | |
2327 | |
1966 | fd_change (EV_A_ w->fd, 1); |
2328 | fd_change (EV_A_ w->fd, 1); |
|
|
2329 | |
|
|
2330 | EV_FREQUENT_CHECK; |
1967 | } |
2331 | } |
1968 | |
2332 | |
1969 | void noinline |
2333 | void noinline |
1970 | ev_timer_start (EV_P_ ev_timer *w) |
2334 | ev_timer_start (EV_P_ ev_timer *w) |
1971 | { |
2335 | { |
1972 | if (expect_false (ev_is_active (w))) |
2336 | if (expect_false (ev_is_active (w))) |
1973 | return; |
2337 | return; |
1974 | |
2338 | |
1975 | ev_at (w) += mn_now; |
2339 | ev_at (w) += mn_now; |
1976 | |
2340 | |
1977 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2341 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1978 | |
2342 | |
|
|
2343 | EV_FREQUENT_CHECK; |
|
|
2344 | |
|
|
2345 | ++timercnt; |
1979 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
2346 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1980 | array_needsize (WT, timers, timermax, timercnt + HEAP0, EMPTY2); |
2347 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1981 | timers [ev_active (w)] = (WT)w; |
2348 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
2349 | ANHE_at_cache (timers [ev_active (w)]); |
1982 | upheap (timers, ev_active (w)); |
2350 | upheap (timers, ev_active (w)); |
1983 | |
2351 | |
|
|
2352 | EV_FREQUENT_CHECK; |
|
|
2353 | |
1984 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ |
2354 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1985 | } |
2355 | } |
1986 | |
2356 | |
1987 | void noinline |
2357 | void noinline |
1988 | ev_timer_stop (EV_P_ ev_timer *w) |
2358 | ev_timer_stop (EV_P_ ev_timer *w) |
1989 | { |
2359 | { |
1990 | clear_pending (EV_A_ (W)w); |
2360 | clear_pending (EV_A_ (W)w); |
1991 | if (expect_false (!ev_is_active (w))) |
2361 | if (expect_false (!ev_is_active (w))) |
1992 | return; |
2362 | return; |
1993 | |
2363 | |
|
|
2364 | EV_FREQUENT_CHECK; |
|
|
2365 | |
1994 | { |
2366 | { |
1995 | int active = ev_active (w); |
2367 | int active = ev_active (w); |
1996 | |
2368 | |
1997 | assert (("internal timer heap corruption", timers [active] == (WT)w)); |
2369 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1998 | |
2370 | |
|
|
2371 | --timercnt; |
|
|
2372 | |
1999 | if (expect_true (active < timercnt + HEAP0 - 1)) |
2373 | if (expect_true (active < timercnt + HEAP0)) |
2000 | { |
2374 | { |
2001 | timers [active] = timers [timercnt + HEAP0 - 1]; |
2375 | timers [active] = timers [timercnt + HEAP0]; |
2002 | adjustheap (timers, timercnt, active); |
2376 | adjustheap (timers, timercnt, active); |
2003 | } |
2377 | } |
2004 | |
|
|
2005 | --timercnt; |
|
|
2006 | } |
2378 | } |
|
|
2379 | |
|
|
2380 | EV_FREQUENT_CHECK; |
2007 | |
2381 | |
2008 | ev_at (w) -= mn_now; |
2382 | ev_at (w) -= mn_now; |
2009 | |
2383 | |
2010 | ev_stop (EV_A_ (W)w); |
2384 | ev_stop (EV_A_ (W)w); |
2011 | } |
2385 | } |
2012 | |
2386 | |
2013 | void noinline |
2387 | void noinline |
2014 | ev_timer_again (EV_P_ ev_timer *w) |
2388 | ev_timer_again (EV_P_ ev_timer *w) |
2015 | { |
2389 | { |
|
|
2390 | EV_FREQUENT_CHECK; |
|
|
2391 | |
2016 | if (ev_is_active (w)) |
2392 | if (ev_is_active (w)) |
2017 | { |
2393 | { |
2018 | if (w->repeat) |
2394 | if (w->repeat) |
2019 | { |
2395 | { |
2020 | ev_at (w) = mn_now + w->repeat; |
2396 | ev_at (w) = mn_now + w->repeat; |
|
|
2397 | ANHE_at_cache (timers [ev_active (w)]); |
2021 | adjustheap (timers, timercnt, ev_active (w)); |
2398 | adjustheap (timers, timercnt, ev_active (w)); |
2022 | } |
2399 | } |
2023 | else |
2400 | else |
2024 | ev_timer_stop (EV_A_ w); |
2401 | ev_timer_stop (EV_A_ w); |
2025 | } |
2402 | } |
2026 | else if (w->repeat) |
2403 | else if (w->repeat) |
2027 | { |
2404 | { |
2028 | ev_at (w) = w->repeat; |
2405 | ev_at (w) = w->repeat; |
2029 | ev_timer_start (EV_A_ w); |
2406 | ev_timer_start (EV_A_ w); |
2030 | } |
2407 | } |
|
|
2408 | |
|
|
2409 | EV_FREQUENT_CHECK; |
2031 | } |
2410 | } |
2032 | |
2411 | |
2033 | #if EV_PERIODIC_ENABLE |
2412 | #if EV_PERIODIC_ENABLE |
2034 | void noinline |
2413 | void noinline |
2035 | ev_periodic_start (EV_P_ ev_periodic *w) |
2414 | ev_periodic_start (EV_P_ ev_periodic *w) |
… | |
… | |
2039 | |
2418 | |
2040 | if (w->reschedule_cb) |
2419 | if (w->reschedule_cb) |
2041 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2420 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2042 | else if (w->interval) |
2421 | else if (w->interval) |
2043 | { |
2422 | { |
2044 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2423 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2045 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2424 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2046 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2425 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2047 | } |
2426 | } |
2048 | else |
2427 | else |
2049 | ev_at (w) = w->offset; |
2428 | ev_at (w) = w->offset; |
2050 | |
2429 | |
|
|
2430 | EV_FREQUENT_CHECK; |
|
|
2431 | |
|
|
2432 | ++periodiccnt; |
2051 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
2433 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2052 | array_needsize (WT, periodics, periodicmax, periodiccnt + HEAP0, EMPTY2); |
2434 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2053 | periodics [ev_active (w)] = (WT)w; |
2435 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
|
|
2436 | ANHE_at_cache (periodics [ev_active (w)]); |
2054 | upheap (periodics, ev_active (w)); |
2437 | upheap (periodics, ev_active (w)); |
2055 | |
2438 | |
|
|
2439 | EV_FREQUENT_CHECK; |
|
|
2440 | |
2056 | /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/ |
2441 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2057 | } |
2442 | } |
2058 | |
2443 | |
2059 | void noinline |
2444 | void noinline |
2060 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2445 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2061 | { |
2446 | { |
2062 | clear_pending (EV_A_ (W)w); |
2447 | clear_pending (EV_A_ (W)w); |
2063 | if (expect_false (!ev_is_active (w))) |
2448 | if (expect_false (!ev_is_active (w))) |
2064 | return; |
2449 | return; |
2065 | |
2450 | |
|
|
2451 | EV_FREQUENT_CHECK; |
|
|
2452 | |
2066 | { |
2453 | { |
2067 | int active = ev_active (w); |
2454 | int active = ev_active (w); |
2068 | |
2455 | |
2069 | assert (("internal periodic heap corruption", periodics [active] == (WT)w)); |
2456 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2070 | |
2457 | |
|
|
2458 | --periodiccnt; |
|
|
2459 | |
2071 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
2460 | if (expect_true (active < periodiccnt + HEAP0)) |
2072 | { |
2461 | { |
2073 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
2462 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2074 | adjustheap (periodics, periodiccnt, active); |
2463 | adjustheap (periodics, periodiccnt, active); |
2075 | } |
2464 | } |
2076 | |
|
|
2077 | --periodiccnt; |
|
|
2078 | } |
2465 | } |
|
|
2466 | |
|
|
2467 | EV_FREQUENT_CHECK; |
2079 | |
2468 | |
2080 | ev_stop (EV_A_ (W)w); |
2469 | ev_stop (EV_A_ (W)w); |
2081 | } |
2470 | } |
2082 | |
2471 | |
2083 | void noinline |
2472 | void noinline |
… | |
… | |
2095 | |
2484 | |
2096 | void noinline |
2485 | void noinline |
2097 | ev_signal_start (EV_P_ ev_signal *w) |
2486 | ev_signal_start (EV_P_ ev_signal *w) |
2098 | { |
2487 | { |
2099 | #if EV_MULTIPLICITY |
2488 | #if EV_MULTIPLICITY |
2100 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2489 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2101 | #endif |
2490 | #endif |
2102 | if (expect_false (ev_is_active (w))) |
2491 | if (expect_false (ev_is_active (w))) |
2103 | return; |
2492 | return; |
2104 | |
2493 | |
2105 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2494 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2106 | |
2495 | |
2107 | evpipe_init (EV_A); |
2496 | evpipe_init (EV_A); |
|
|
2497 | |
|
|
2498 | EV_FREQUENT_CHECK; |
2108 | |
2499 | |
2109 | { |
2500 | { |
2110 | #ifndef _WIN32 |
2501 | #ifndef _WIN32 |
2111 | sigset_t full, prev; |
2502 | sigset_t full, prev; |
2112 | sigfillset (&full); |
2503 | sigfillset (&full); |
2113 | sigprocmask (SIG_SETMASK, &full, &prev); |
2504 | sigprocmask (SIG_SETMASK, &full, &prev); |
2114 | #endif |
2505 | #endif |
2115 | |
2506 | |
2116 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2507 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2117 | |
2508 | |
2118 | #ifndef _WIN32 |
2509 | #ifndef _WIN32 |
2119 | sigprocmask (SIG_SETMASK, &prev, 0); |
2510 | sigprocmask (SIG_SETMASK, &prev, 0); |
2120 | #endif |
2511 | #endif |
2121 | } |
2512 | } |
… | |
… | |
2133 | sigfillset (&sa.sa_mask); |
2524 | sigfillset (&sa.sa_mask); |
2134 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2525 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2135 | sigaction (w->signum, &sa, 0); |
2526 | sigaction (w->signum, &sa, 0); |
2136 | #endif |
2527 | #endif |
2137 | } |
2528 | } |
|
|
2529 | |
|
|
2530 | EV_FREQUENT_CHECK; |
2138 | } |
2531 | } |
2139 | |
2532 | |
2140 | void noinline |
2533 | void noinline |
2141 | ev_signal_stop (EV_P_ ev_signal *w) |
2534 | ev_signal_stop (EV_P_ ev_signal *w) |
2142 | { |
2535 | { |
2143 | clear_pending (EV_A_ (W)w); |
2536 | clear_pending (EV_A_ (W)w); |
2144 | if (expect_false (!ev_is_active (w))) |
2537 | if (expect_false (!ev_is_active (w))) |
2145 | return; |
2538 | return; |
2146 | |
2539 | |
|
|
2540 | EV_FREQUENT_CHECK; |
|
|
2541 | |
2147 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2542 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2148 | ev_stop (EV_A_ (W)w); |
2543 | ev_stop (EV_A_ (W)w); |
2149 | |
2544 | |
2150 | if (!signals [w->signum - 1].head) |
2545 | if (!signals [w->signum - 1].head) |
2151 | signal (w->signum, SIG_DFL); |
2546 | signal (w->signum, SIG_DFL); |
|
|
2547 | |
|
|
2548 | EV_FREQUENT_CHECK; |
2152 | } |
2549 | } |
2153 | |
2550 | |
2154 | void |
2551 | void |
2155 | ev_child_start (EV_P_ ev_child *w) |
2552 | ev_child_start (EV_P_ ev_child *w) |
2156 | { |
2553 | { |
2157 | #if EV_MULTIPLICITY |
2554 | #if EV_MULTIPLICITY |
2158 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2555 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2159 | #endif |
2556 | #endif |
2160 | if (expect_false (ev_is_active (w))) |
2557 | if (expect_false (ev_is_active (w))) |
2161 | return; |
2558 | return; |
2162 | |
2559 | |
|
|
2560 | EV_FREQUENT_CHECK; |
|
|
2561 | |
2163 | ev_start (EV_A_ (W)w, 1); |
2562 | ev_start (EV_A_ (W)w, 1); |
2164 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2563 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2564 | |
|
|
2565 | EV_FREQUENT_CHECK; |
2165 | } |
2566 | } |
2166 | |
2567 | |
2167 | void |
2568 | void |
2168 | ev_child_stop (EV_P_ ev_child *w) |
2569 | ev_child_stop (EV_P_ ev_child *w) |
2169 | { |
2570 | { |
2170 | clear_pending (EV_A_ (W)w); |
2571 | clear_pending (EV_A_ (W)w); |
2171 | if (expect_false (!ev_is_active (w))) |
2572 | if (expect_false (!ev_is_active (w))) |
2172 | return; |
2573 | return; |
2173 | |
2574 | |
|
|
2575 | EV_FREQUENT_CHECK; |
|
|
2576 | |
2174 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2577 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2175 | ev_stop (EV_A_ (W)w); |
2578 | ev_stop (EV_A_ (W)w); |
|
|
2579 | |
|
|
2580 | EV_FREQUENT_CHECK; |
2176 | } |
2581 | } |
2177 | |
2582 | |
2178 | #if EV_STAT_ENABLE |
2583 | #if EV_STAT_ENABLE |
2179 | |
2584 | |
2180 | # ifdef _WIN32 |
2585 | # ifdef _WIN32 |
2181 | # undef lstat |
2586 | # undef lstat |
2182 | # define lstat(a,b) _stati64 (a,b) |
2587 | # define lstat(a,b) _stati64 (a,b) |
2183 | # endif |
2588 | # endif |
2184 | |
2589 | |
2185 | #define DEF_STAT_INTERVAL 5.0074891 |
2590 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2591 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2186 | #define MIN_STAT_INTERVAL 0.1074891 |
2592 | #define MIN_STAT_INTERVAL 0.1074891 |
2187 | |
2593 | |
2188 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2594 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2189 | |
2595 | |
2190 | #if EV_USE_INOTIFY |
2596 | #if EV_USE_INOTIFY |
2191 | # define EV_INOTIFY_BUFSIZE 8192 |
2597 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2195 | { |
2601 | { |
2196 | 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); |
2602 | 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); |
2197 | |
2603 | |
2198 | if (w->wd < 0) |
2604 | if (w->wd < 0) |
2199 | { |
2605 | { |
|
|
2606 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2200 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2607 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2201 | |
2608 | |
2202 | /* monitor some parent directory for speedup hints */ |
2609 | /* monitor some parent directory for speedup hints */ |
2203 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2610 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2204 | /* but an efficiency issue only */ |
2611 | /* but an efficiency issue only */ |
2205 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2612 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2206 | { |
2613 | { |
2207 | char path [4096]; |
2614 | char path [4096]; |
2208 | strcpy (path, w->path); |
2615 | strcpy (path, w->path); |
… | |
… | |
2212 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2619 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2213 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2620 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2214 | |
2621 | |
2215 | char *pend = strrchr (path, '/'); |
2622 | char *pend = strrchr (path, '/'); |
2216 | |
2623 | |
2217 | if (!pend) |
2624 | if (!pend || pend == path) |
2218 | break; /* whoops, no '/', complain to your admin */ |
2625 | break; |
2219 | |
2626 | |
2220 | *pend = 0; |
2627 | *pend = 0; |
2221 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2628 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2222 | } |
2629 | } |
2223 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2630 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2224 | } |
2631 | } |
2225 | } |
2632 | } |
2226 | else |
|
|
2227 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2228 | |
2633 | |
2229 | if (w->wd >= 0) |
2634 | if (w->wd >= 0) |
|
|
2635 | { |
2230 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2636 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2637 | |
|
|
2638 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2639 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2640 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2641 | struct statfs sfs; |
|
|
2642 | |
|
|
2643 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2644 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2645 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2646 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2647 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2648 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2649 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2650 | return; |
|
|
2651 | |
|
|
2652 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2653 | ev_timer_again (EV_A_ &w->timer); |
|
|
2654 | } |
2231 | } |
2655 | } |
2232 | |
2656 | |
2233 | static void noinline |
2657 | static void noinline |
2234 | infy_del (EV_P_ ev_stat *w) |
2658 | infy_del (EV_P_ ev_stat *w) |
2235 | { |
2659 | { |
… | |
… | |
2249 | |
2673 | |
2250 | static void noinline |
2674 | static void noinline |
2251 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2675 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2252 | { |
2676 | { |
2253 | if (slot < 0) |
2677 | if (slot < 0) |
2254 | /* overflow, need to check for all hahs slots */ |
2678 | /* overflow, need to check for all hash slots */ |
2255 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2679 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2256 | infy_wd (EV_A_ slot, wd, ev); |
2680 | infy_wd (EV_A_ slot, wd, ev); |
2257 | else |
2681 | else |
2258 | { |
2682 | { |
2259 | WL w_; |
2683 | WL w_; |
… | |
… | |
2265 | |
2689 | |
2266 | if (w->wd == wd || wd == -1) |
2690 | if (w->wd == wd || wd == -1) |
2267 | { |
2691 | { |
2268 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2692 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2269 | { |
2693 | { |
|
|
2694 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2270 | w->wd = -1; |
2695 | w->wd = -1; |
2271 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2696 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2272 | } |
2697 | } |
2273 | |
2698 | |
2274 | stat_timer_cb (EV_A_ &w->timer, 0); |
2699 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2287 | |
2712 | |
2288 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2713 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2289 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2714 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2290 | } |
2715 | } |
2291 | |
2716 | |
2292 | void inline_size |
2717 | inline_size void |
|
|
2718 | check_2625 (EV_P) |
|
|
2719 | { |
|
|
2720 | /* kernels < 2.6.25 are borked |
|
|
2721 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2722 | */ |
|
|
2723 | struct utsname buf; |
|
|
2724 | int major, minor, micro; |
|
|
2725 | |
|
|
2726 | if (uname (&buf)) |
|
|
2727 | return; |
|
|
2728 | |
|
|
2729 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2730 | return; |
|
|
2731 | |
|
|
2732 | if (major < 2 |
|
|
2733 | || (major == 2 && minor < 6) |
|
|
2734 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2735 | return; |
|
|
2736 | |
|
|
2737 | fs_2625 = 1; |
|
|
2738 | } |
|
|
2739 | |
|
|
2740 | inline_size void |
2293 | infy_init (EV_P) |
2741 | infy_init (EV_P) |
2294 | { |
2742 | { |
2295 | if (fs_fd != -2) |
2743 | if (fs_fd != -2) |
2296 | return; |
2744 | return; |
|
|
2745 | |
|
|
2746 | fs_fd = -1; |
|
|
2747 | |
|
|
2748 | check_2625 (EV_A); |
2297 | |
2749 | |
2298 | fs_fd = inotify_init (); |
2750 | fs_fd = inotify_init (); |
2299 | |
2751 | |
2300 | if (fs_fd >= 0) |
2752 | if (fs_fd >= 0) |
2301 | { |
2753 | { |
… | |
… | |
2303 | ev_set_priority (&fs_w, EV_MAXPRI); |
2755 | ev_set_priority (&fs_w, EV_MAXPRI); |
2304 | ev_io_start (EV_A_ &fs_w); |
2756 | ev_io_start (EV_A_ &fs_w); |
2305 | } |
2757 | } |
2306 | } |
2758 | } |
2307 | |
2759 | |
2308 | void inline_size |
2760 | inline_size void |
2309 | infy_fork (EV_P) |
2761 | infy_fork (EV_P) |
2310 | { |
2762 | { |
2311 | int slot; |
2763 | int slot; |
2312 | |
2764 | |
2313 | if (fs_fd < 0) |
2765 | if (fs_fd < 0) |
… | |
… | |
2329 | w->wd = -1; |
2781 | w->wd = -1; |
2330 | |
2782 | |
2331 | if (fs_fd >= 0) |
2783 | if (fs_fd >= 0) |
2332 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2784 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2333 | else |
2785 | else |
2334 | ev_timer_start (EV_A_ &w->timer); |
2786 | ev_timer_again (EV_A_ &w->timer); |
2335 | } |
2787 | } |
2336 | |
|
|
2337 | } |
2788 | } |
2338 | } |
2789 | } |
2339 | |
2790 | |
|
|
2791 | #endif |
|
|
2792 | |
|
|
2793 | #ifdef _WIN32 |
|
|
2794 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2795 | #else |
|
|
2796 | # define EV_LSTAT(p,b) lstat (p, b) |
2340 | #endif |
2797 | #endif |
2341 | |
2798 | |
2342 | void |
2799 | void |
2343 | ev_stat_stat (EV_P_ ev_stat *w) |
2800 | ev_stat_stat (EV_P_ ev_stat *w) |
2344 | { |
2801 | { |
… | |
… | |
2371 | || w->prev.st_atime != w->attr.st_atime |
2828 | || w->prev.st_atime != w->attr.st_atime |
2372 | || w->prev.st_mtime != w->attr.st_mtime |
2829 | || w->prev.st_mtime != w->attr.st_mtime |
2373 | || w->prev.st_ctime != w->attr.st_ctime |
2830 | || w->prev.st_ctime != w->attr.st_ctime |
2374 | ) { |
2831 | ) { |
2375 | #if EV_USE_INOTIFY |
2832 | #if EV_USE_INOTIFY |
|
|
2833 | if (fs_fd >= 0) |
|
|
2834 | { |
2376 | infy_del (EV_A_ w); |
2835 | infy_del (EV_A_ w); |
2377 | infy_add (EV_A_ w); |
2836 | infy_add (EV_A_ w); |
2378 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2837 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2838 | } |
2379 | #endif |
2839 | #endif |
2380 | |
2840 | |
2381 | ev_feed_event (EV_A_ w, EV_STAT); |
2841 | ev_feed_event (EV_A_ w, EV_STAT); |
2382 | } |
2842 | } |
2383 | } |
2843 | } |
… | |
… | |
2386 | ev_stat_start (EV_P_ ev_stat *w) |
2846 | ev_stat_start (EV_P_ ev_stat *w) |
2387 | { |
2847 | { |
2388 | if (expect_false (ev_is_active (w))) |
2848 | if (expect_false (ev_is_active (w))) |
2389 | return; |
2849 | return; |
2390 | |
2850 | |
2391 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2392 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2393 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2394 | |
|
|
2395 | ev_stat_stat (EV_A_ w); |
2851 | ev_stat_stat (EV_A_ w); |
2396 | |
2852 | |
|
|
2853 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2397 | if (w->interval < MIN_STAT_INTERVAL) |
2854 | w->interval = MIN_STAT_INTERVAL; |
2398 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2399 | |
2855 | |
2400 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2856 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2401 | ev_set_priority (&w->timer, ev_priority (w)); |
2857 | ev_set_priority (&w->timer, ev_priority (w)); |
2402 | |
2858 | |
2403 | #if EV_USE_INOTIFY |
2859 | #if EV_USE_INOTIFY |
2404 | infy_init (EV_A); |
2860 | infy_init (EV_A); |
2405 | |
2861 | |
2406 | if (fs_fd >= 0) |
2862 | if (fs_fd >= 0) |
2407 | infy_add (EV_A_ w); |
2863 | infy_add (EV_A_ w); |
2408 | else |
2864 | else |
2409 | #endif |
2865 | #endif |
2410 | ev_timer_start (EV_A_ &w->timer); |
2866 | ev_timer_again (EV_A_ &w->timer); |
2411 | |
2867 | |
2412 | ev_start (EV_A_ (W)w, 1); |
2868 | ev_start (EV_A_ (W)w, 1); |
|
|
2869 | |
|
|
2870 | EV_FREQUENT_CHECK; |
2413 | } |
2871 | } |
2414 | |
2872 | |
2415 | void |
2873 | void |
2416 | ev_stat_stop (EV_P_ ev_stat *w) |
2874 | ev_stat_stop (EV_P_ ev_stat *w) |
2417 | { |
2875 | { |
2418 | clear_pending (EV_A_ (W)w); |
2876 | clear_pending (EV_A_ (W)w); |
2419 | if (expect_false (!ev_is_active (w))) |
2877 | if (expect_false (!ev_is_active (w))) |
2420 | return; |
2878 | return; |
2421 | |
2879 | |
|
|
2880 | EV_FREQUENT_CHECK; |
|
|
2881 | |
2422 | #if EV_USE_INOTIFY |
2882 | #if EV_USE_INOTIFY |
2423 | infy_del (EV_A_ w); |
2883 | infy_del (EV_A_ w); |
2424 | #endif |
2884 | #endif |
2425 | ev_timer_stop (EV_A_ &w->timer); |
2885 | ev_timer_stop (EV_A_ &w->timer); |
2426 | |
2886 | |
2427 | ev_stop (EV_A_ (W)w); |
2887 | ev_stop (EV_A_ (W)w); |
|
|
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
2428 | } |
2890 | } |
2429 | #endif |
2891 | #endif |
2430 | |
2892 | |
2431 | #if EV_IDLE_ENABLE |
2893 | #if EV_IDLE_ENABLE |
2432 | void |
2894 | void |
… | |
… | |
2434 | { |
2896 | { |
2435 | if (expect_false (ev_is_active (w))) |
2897 | if (expect_false (ev_is_active (w))) |
2436 | return; |
2898 | return; |
2437 | |
2899 | |
2438 | pri_adjust (EV_A_ (W)w); |
2900 | pri_adjust (EV_A_ (W)w); |
|
|
2901 | |
|
|
2902 | EV_FREQUENT_CHECK; |
2439 | |
2903 | |
2440 | { |
2904 | { |
2441 | int active = ++idlecnt [ABSPRI (w)]; |
2905 | int active = ++idlecnt [ABSPRI (w)]; |
2442 | |
2906 | |
2443 | ++idleall; |
2907 | ++idleall; |
2444 | ev_start (EV_A_ (W)w, active); |
2908 | ev_start (EV_A_ (W)w, active); |
2445 | |
2909 | |
2446 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2910 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2447 | idles [ABSPRI (w)][active - 1] = w; |
2911 | idles [ABSPRI (w)][active - 1] = w; |
2448 | } |
2912 | } |
|
|
2913 | |
|
|
2914 | EV_FREQUENT_CHECK; |
2449 | } |
2915 | } |
2450 | |
2916 | |
2451 | void |
2917 | void |
2452 | ev_idle_stop (EV_P_ ev_idle *w) |
2918 | ev_idle_stop (EV_P_ ev_idle *w) |
2453 | { |
2919 | { |
2454 | clear_pending (EV_A_ (W)w); |
2920 | clear_pending (EV_A_ (W)w); |
2455 | if (expect_false (!ev_is_active (w))) |
2921 | if (expect_false (!ev_is_active (w))) |
2456 | return; |
2922 | return; |
2457 | |
2923 | |
|
|
2924 | EV_FREQUENT_CHECK; |
|
|
2925 | |
2458 | { |
2926 | { |
2459 | int active = ev_active (w); |
2927 | int active = ev_active (w); |
2460 | |
2928 | |
2461 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2929 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2462 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2930 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2463 | |
2931 | |
2464 | ev_stop (EV_A_ (W)w); |
2932 | ev_stop (EV_A_ (W)w); |
2465 | --idleall; |
2933 | --idleall; |
2466 | } |
2934 | } |
|
|
2935 | |
|
|
2936 | EV_FREQUENT_CHECK; |
2467 | } |
2937 | } |
2468 | #endif |
2938 | #endif |
2469 | |
2939 | |
2470 | void |
2940 | void |
2471 | ev_prepare_start (EV_P_ ev_prepare *w) |
2941 | ev_prepare_start (EV_P_ ev_prepare *w) |
2472 | { |
2942 | { |
2473 | if (expect_false (ev_is_active (w))) |
2943 | if (expect_false (ev_is_active (w))) |
2474 | return; |
2944 | return; |
|
|
2945 | |
|
|
2946 | EV_FREQUENT_CHECK; |
2475 | |
2947 | |
2476 | ev_start (EV_A_ (W)w, ++preparecnt); |
2948 | ev_start (EV_A_ (W)w, ++preparecnt); |
2477 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2949 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2478 | prepares [preparecnt - 1] = w; |
2950 | prepares [preparecnt - 1] = w; |
|
|
2951 | |
|
|
2952 | EV_FREQUENT_CHECK; |
2479 | } |
2953 | } |
2480 | |
2954 | |
2481 | void |
2955 | void |
2482 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2956 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2483 | { |
2957 | { |
2484 | clear_pending (EV_A_ (W)w); |
2958 | clear_pending (EV_A_ (W)w); |
2485 | if (expect_false (!ev_is_active (w))) |
2959 | if (expect_false (!ev_is_active (w))) |
2486 | return; |
2960 | return; |
2487 | |
2961 | |
|
|
2962 | EV_FREQUENT_CHECK; |
|
|
2963 | |
2488 | { |
2964 | { |
2489 | int active = ev_active (w); |
2965 | int active = ev_active (w); |
2490 | |
2966 | |
2491 | prepares [active - 1] = prepares [--preparecnt]; |
2967 | prepares [active - 1] = prepares [--preparecnt]; |
2492 | ev_active (prepares [active - 1]) = active; |
2968 | ev_active (prepares [active - 1]) = active; |
2493 | } |
2969 | } |
2494 | |
2970 | |
2495 | ev_stop (EV_A_ (W)w); |
2971 | ev_stop (EV_A_ (W)w); |
|
|
2972 | |
|
|
2973 | EV_FREQUENT_CHECK; |
2496 | } |
2974 | } |
2497 | |
2975 | |
2498 | void |
2976 | void |
2499 | ev_check_start (EV_P_ ev_check *w) |
2977 | ev_check_start (EV_P_ ev_check *w) |
2500 | { |
2978 | { |
2501 | if (expect_false (ev_is_active (w))) |
2979 | if (expect_false (ev_is_active (w))) |
2502 | return; |
2980 | return; |
|
|
2981 | |
|
|
2982 | EV_FREQUENT_CHECK; |
2503 | |
2983 | |
2504 | ev_start (EV_A_ (W)w, ++checkcnt); |
2984 | ev_start (EV_A_ (W)w, ++checkcnt); |
2505 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2985 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2506 | checks [checkcnt - 1] = w; |
2986 | checks [checkcnt - 1] = w; |
|
|
2987 | |
|
|
2988 | EV_FREQUENT_CHECK; |
2507 | } |
2989 | } |
2508 | |
2990 | |
2509 | void |
2991 | void |
2510 | ev_check_stop (EV_P_ ev_check *w) |
2992 | ev_check_stop (EV_P_ ev_check *w) |
2511 | { |
2993 | { |
2512 | clear_pending (EV_A_ (W)w); |
2994 | clear_pending (EV_A_ (W)w); |
2513 | if (expect_false (!ev_is_active (w))) |
2995 | if (expect_false (!ev_is_active (w))) |
2514 | return; |
2996 | return; |
2515 | |
2997 | |
|
|
2998 | EV_FREQUENT_CHECK; |
|
|
2999 | |
2516 | { |
3000 | { |
2517 | int active = ev_active (w); |
3001 | int active = ev_active (w); |
2518 | |
3002 | |
2519 | checks [active - 1] = checks [--checkcnt]; |
3003 | checks [active - 1] = checks [--checkcnt]; |
2520 | ev_active (checks [active - 1]) = active; |
3004 | ev_active (checks [active - 1]) = active; |
2521 | } |
3005 | } |
2522 | |
3006 | |
2523 | ev_stop (EV_A_ (W)w); |
3007 | ev_stop (EV_A_ (W)w); |
|
|
3008 | |
|
|
3009 | EV_FREQUENT_CHECK; |
2524 | } |
3010 | } |
2525 | |
3011 | |
2526 | #if EV_EMBED_ENABLE |
3012 | #if EV_EMBED_ENABLE |
2527 | void noinline |
3013 | void noinline |
2528 | ev_embed_sweep (EV_P_ ev_embed *w) |
3014 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2555 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3041 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2556 | } |
3042 | } |
2557 | } |
3043 | } |
2558 | } |
3044 | } |
2559 | |
3045 | |
|
|
3046 | static void |
|
|
3047 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3048 | { |
|
|
3049 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3050 | |
|
|
3051 | ev_embed_stop (EV_A_ w); |
|
|
3052 | |
|
|
3053 | { |
|
|
3054 | struct ev_loop *loop = w->other; |
|
|
3055 | |
|
|
3056 | ev_loop_fork (EV_A); |
|
|
3057 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3058 | } |
|
|
3059 | |
|
|
3060 | ev_embed_start (EV_A_ w); |
|
|
3061 | } |
|
|
3062 | |
2560 | #if 0 |
3063 | #if 0 |
2561 | static void |
3064 | static void |
2562 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3065 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2563 | { |
3066 | { |
2564 | ev_idle_stop (EV_A_ idle); |
3067 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2571 | if (expect_false (ev_is_active (w))) |
3074 | if (expect_false (ev_is_active (w))) |
2572 | return; |
3075 | return; |
2573 | |
3076 | |
2574 | { |
3077 | { |
2575 | struct ev_loop *loop = w->other; |
3078 | struct ev_loop *loop = w->other; |
2576 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3079 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2577 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3080 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2578 | } |
3081 | } |
|
|
3082 | |
|
|
3083 | EV_FREQUENT_CHECK; |
2579 | |
3084 | |
2580 | ev_set_priority (&w->io, ev_priority (w)); |
3085 | ev_set_priority (&w->io, ev_priority (w)); |
2581 | ev_io_start (EV_A_ &w->io); |
3086 | ev_io_start (EV_A_ &w->io); |
2582 | |
3087 | |
2583 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3088 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2584 | ev_set_priority (&w->prepare, EV_MINPRI); |
3089 | ev_set_priority (&w->prepare, EV_MINPRI); |
2585 | ev_prepare_start (EV_A_ &w->prepare); |
3090 | ev_prepare_start (EV_A_ &w->prepare); |
2586 | |
3091 | |
|
|
3092 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3093 | ev_fork_start (EV_A_ &w->fork); |
|
|
3094 | |
2587 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3095 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2588 | |
3096 | |
2589 | ev_start (EV_A_ (W)w, 1); |
3097 | ev_start (EV_A_ (W)w, 1); |
|
|
3098 | |
|
|
3099 | EV_FREQUENT_CHECK; |
2590 | } |
3100 | } |
2591 | |
3101 | |
2592 | void |
3102 | void |
2593 | ev_embed_stop (EV_P_ ev_embed *w) |
3103 | ev_embed_stop (EV_P_ ev_embed *w) |
2594 | { |
3104 | { |
2595 | clear_pending (EV_A_ (W)w); |
3105 | clear_pending (EV_A_ (W)w); |
2596 | if (expect_false (!ev_is_active (w))) |
3106 | if (expect_false (!ev_is_active (w))) |
2597 | return; |
3107 | return; |
2598 | |
3108 | |
|
|
3109 | EV_FREQUENT_CHECK; |
|
|
3110 | |
2599 | ev_io_stop (EV_A_ &w->io); |
3111 | ev_io_stop (EV_A_ &w->io); |
2600 | ev_prepare_stop (EV_A_ &w->prepare); |
3112 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3113 | ev_fork_stop (EV_A_ &w->fork); |
2601 | |
3114 | |
2602 | ev_stop (EV_A_ (W)w); |
3115 | EV_FREQUENT_CHECK; |
2603 | } |
3116 | } |
2604 | #endif |
3117 | #endif |
2605 | |
3118 | |
2606 | #if EV_FORK_ENABLE |
3119 | #if EV_FORK_ENABLE |
2607 | void |
3120 | void |
2608 | ev_fork_start (EV_P_ ev_fork *w) |
3121 | ev_fork_start (EV_P_ ev_fork *w) |
2609 | { |
3122 | { |
2610 | if (expect_false (ev_is_active (w))) |
3123 | if (expect_false (ev_is_active (w))) |
2611 | return; |
3124 | return; |
|
|
3125 | |
|
|
3126 | EV_FREQUENT_CHECK; |
2612 | |
3127 | |
2613 | ev_start (EV_A_ (W)w, ++forkcnt); |
3128 | ev_start (EV_A_ (W)w, ++forkcnt); |
2614 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3129 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2615 | forks [forkcnt - 1] = w; |
3130 | forks [forkcnt - 1] = w; |
|
|
3131 | |
|
|
3132 | EV_FREQUENT_CHECK; |
2616 | } |
3133 | } |
2617 | |
3134 | |
2618 | void |
3135 | void |
2619 | ev_fork_stop (EV_P_ ev_fork *w) |
3136 | ev_fork_stop (EV_P_ ev_fork *w) |
2620 | { |
3137 | { |
2621 | clear_pending (EV_A_ (W)w); |
3138 | clear_pending (EV_A_ (W)w); |
2622 | if (expect_false (!ev_is_active (w))) |
3139 | if (expect_false (!ev_is_active (w))) |
2623 | return; |
3140 | return; |
2624 | |
3141 | |
|
|
3142 | EV_FREQUENT_CHECK; |
|
|
3143 | |
2625 | { |
3144 | { |
2626 | int active = ev_active (w); |
3145 | int active = ev_active (w); |
2627 | |
3146 | |
2628 | forks [active - 1] = forks [--forkcnt]; |
3147 | forks [active - 1] = forks [--forkcnt]; |
2629 | ev_active (forks [active - 1]) = active; |
3148 | ev_active (forks [active - 1]) = active; |
2630 | } |
3149 | } |
2631 | |
3150 | |
2632 | ev_stop (EV_A_ (W)w); |
3151 | ev_stop (EV_A_ (W)w); |
|
|
3152 | |
|
|
3153 | EV_FREQUENT_CHECK; |
2633 | } |
3154 | } |
2634 | #endif |
3155 | #endif |
2635 | |
3156 | |
2636 | #if EV_ASYNC_ENABLE |
3157 | #if EV_ASYNC_ENABLE |
2637 | void |
3158 | void |
… | |
… | |
2639 | { |
3160 | { |
2640 | if (expect_false (ev_is_active (w))) |
3161 | if (expect_false (ev_is_active (w))) |
2641 | return; |
3162 | return; |
2642 | |
3163 | |
2643 | evpipe_init (EV_A); |
3164 | evpipe_init (EV_A); |
|
|
3165 | |
|
|
3166 | EV_FREQUENT_CHECK; |
2644 | |
3167 | |
2645 | ev_start (EV_A_ (W)w, ++asynccnt); |
3168 | ev_start (EV_A_ (W)w, ++asynccnt); |
2646 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3169 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2647 | asyncs [asynccnt - 1] = w; |
3170 | asyncs [asynccnt - 1] = w; |
|
|
3171 | |
|
|
3172 | EV_FREQUENT_CHECK; |
2648 | } |
3173 | } |
2649 | |
3174 | |
2650 | void |
3175 | void |
2651 | ev_async_stop (EV_P_ ev_async *w) |
3176 | ev_async_stop (EV_P_ ev_async *w) |
2652 | { |
3177 | { |
2653 | clear_pending (EV_A_ (W)w); |
3178 | clear_pending (EV_A_ (W)w); |
2654 | if (expect_false (!ev_is_active (w))) |
3179 | if (expect_false (!ev_is_active (w))) |
2655 | return; |
3180 | return; |
2656 | |
3181 | |
|
|
3182 | EV_FREQUENT_CHECK; |
|
|
3183 | |
2657 | { |
3184 | { |
2658 | int active = ev_active (w); |
3185 | int active = ev_active (w); |
2659 | |
3186 | |
2660 | asyncs [active - 1] = asyncs [--asynccnt]; |
3187 | asyncs [active - 1] = asyncs [--asynccnt]; |
2661 | ev_active (asyncs [active - 1]) = active; |
3188 | ev_active (asyncs [active - 1]) = active; |
2662 | } |
3189 | } |
2663 | |
3190 | |
2664 | ev_stop (EV_A_ (W)w); |
3191 | ev_stop (EV_A_ (W)w); |
|
|
3192 | |
|
|
3193 | EV_FREQUENT_CHECK; |
2665 | } |
3194 | } |
2666 | |
3195 | |
2667 | void |
3196 | void |
2668 | ev_async_send (EV_P_ ev_async *w) |
3197 | ev_async_send (EV_P_ ev_async *w) |
2669 | { |
3198 | { |
… | |
… | |
2686 | once_cb (EV_P_ struct ev_once *once, int revents) |
3215 | once_cb (EV_P_ struct ev_once *once, int revents) |
2687 | { |
3216 | { |
2688 | void (*cb)(int revents, void *arg) = once->cb; |
3217 | void (*cb)(int revents, void *arg) = once->cb; |
2689 | void *arg = once->arg; |
3218 | void *arg = once->arg; |
2690 | |
3219 | |
2691 | ev_io_stop (EV_A_ &once->io); |
3220 | ev_io_stop (EV_A_ &once->io); |
2692 | ev_timer_stop (EV_A_ &once->to); |
3221 | ev_timer_stop (EV_A_ &once->to); |
2693 | ev_free (once); |
3222 | ev_free (once); |
2694 | |
3223 | |
2695 | cb (revents, arg); |
3224 | cb (revents, arg); |
2696 | } |
3225 | } |
2697 | |
3226 | |
2698 | static void |
3227 | static void |
2699 | once_cb_io (EV_P_ ev_io *w, int revents) |
3228 | once_cb_io (EV_P_ ev_io *w, int revents) |
2700 | { |
3229 | { |
2701 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3230 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3231 | |
|
|
3232 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2702 | } |
3233 | } |
2703 | |
3234 | |
2704 | static void |
3235 | static void |
2705 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3236 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2706 | { |
3237 | { |
2707 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3238 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3239 | |
|
|
3240 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2708 | } |
3241 | } |
2709 | |
3242 | |
2710 | void |
3243 | void |
2711 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3244 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2712 | { |
3245 | { |
… | |
… | |
2734 | ev_timer_set (&once->to, timeout, 0.); |
3267 | ev_timer_set (&once->to, timeout, 0.); |
2735 | ev_timer_start (EV_A_ &once->to); |
3268 | ev_timer_start (EV_A_ &once->to); |
2736 | } |
3269 | } |
2737 | } |
3270 | } |
2738 | |
3271 | |
|
|
3272 | /*****************************************************************************/ |
|
|
3273 | |
|
|
3274 | #if EV_WALK_ENABLE |
|
|
3275 | void |
|
|
3276 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3277 | { |
|
|
3278 | int i, j; |
|
|
3279 | ev_watcher_list *wl, *wn; |
|
|
3280 | |
|
|
3281 | if (types & (EV_IO | EV_EMBED)) |
|
|
3282 | for (i = 0; i < anfdmax; ++i) |
|
|
3283 | for (wl = anfds [i].head; wl; ) |
|
|
3284 | { |
|
|
3285 | wn = wl->next; |
|
|
3286 | |
|
|
3287 | #if EV_EMBED_ENABLE |
|
|
3288 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3289 | { |
|
|
3290 | if (types & EV_EMBED) |
|
|
3291 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3292 | } |
|
|
3293 | else |
|
|
3294 | #endif |
|
|
3295 | #if EV_USE_INOTIFY |
|
|
3296 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3297 | ; |
|
|
3298 | else |
|
|
3299 | #endif |
|
|
3300 | if ((ev_io *)wl != &pipe_w) |
|
|
3301 | if (types & EV_IO) |
|
|
3302 | cb (EV_A_ EV_IO, wl); |
|
|
3303 | |
|
|
3304 | wl = wn; |
|
|
3305 | } |
|
|
3306 | |
|
|
3307 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3308 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3309 | #if EV_STAT_ENABLE |
|
|
3310 | /*TODO: timer is not always active*/ |
|
|
3311 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3312 | { |
|
|
3313 | if (types & EV_STAT) |
|
|
3314 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3315 | } |
|
|
3316 | else |
|
|
3317 | #endif |
|
|
3318 | if (types & EV_TIMER) |
|
|
3319 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3320 | |
|
|
3321 | #if EV_PERIODIC_ENABLE |
|
|
3322 | if (types & EV_PERIODIC) |
|
|
3323 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3324 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3325 | #endif |
|
|
3326 | |
|
|
3327 | #if EV_IDLE_ENABLE |
|
|
3328 | if (types & EV_IDLE) |
|
|
3329 | for (j = NUMPRI; i--; ) |
|
|
3330 | for (i = idlecnt [j]; i--; ) |
|
|
3331 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3332 | #endif |
|
|
3333 | |
|
|
3334 | #if EV_FORK_ENABLE |
|
|
3335 | if (types & EV_FORK) |
|
|
3336 | for (i = forkcnt; i--; ) |
|
|
3337 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3338 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3339 | #endif |
|
|
3340 | |
|
|
3341 | #if EV_ASYNC_ENABLE |
|
|
3342 | if (types & EV_ASYNC) |
|
|
3343 | for (i = asynccnt; i--; ) |
|
|
3344 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3345 | #endif |
|
|
3346 | |
|
|
3347 | if (types & EV_PREPARE) |
|
|
3348 | for (i = preparecnt; i--; ) |
|
|
3349 | #if EV_EMBED_ENABLE |
|
|
3350 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3351 | #endif |
|
|
3352 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3353 | |
|
|
3354 | if (types & EV_CHECK) |
|
|
3355 | for (i = checkcnt; i--; ) |
|
|
3356 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3357 | |
|
|
3358 | if (types & EV_SIGNAL) |
|
|
3359 | for (i = 0; i < signalmax; ++i) |
|
|
3360 | for (wl = signals [i].head; wl; ) |
|
|
3361 | { |
|
|
3362 | wn = wl->next; |
|
|
3363 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3364 | wl = wn; |
|
|
3365 | } |
|
|
3366 | |
|
|
3367 | if (types & EV_CHILD) |
|
|
3368 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3369 | for (wl = childs [i]; wl; ) |
|
|
3370 | { |
|
|
3371 | wn = wl->next; |
|
|
3372 | cb (EV_A_ EV_CHILD, wl); |
|
|
3373 | wl = wn; |
|
|
3374 | } |
|
|
3375 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3376 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3377 | } |
|
|
3378 | #endif |
|
|
3379 | |
2739 | #if EV_MULTIPLICITY |
3380 | #if EV_MULTIPLICITY |
2740 | #include "ev_wrap.h" |
3381 | #include "ev_wrap.h" |
2741 | #endif |
3382 | #endif |
2742 | |
3383 | |
2743 | #ifdef __cplusplus |
3384 | #ifdef __cplusplus |