1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
47 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
48 | # else |
48 | # else |
49 | # include "config.h" |
49 | # include "config.h" |
50 | # endif |
50 | # endif |
51 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
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|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
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|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
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|
55 | # ifndef EV_USE_REALTIME |
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|
56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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64 | # endif |
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65 | |
52 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
69 | # endif |
56 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
58 | # endif |
72 | # endif |
59 | # else |
73 | # else |
60 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
76 | # endif |
… | |
… | |
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 |
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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 |
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193 | # define EV_USE_MONOTONIC 1 |
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194 | # else |
169 | # define EV_USE_MONOTONIC 0 |
195 | # define EV_USE_MONOTONIC 0 |
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|
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 |
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|
205 | # define EV_USE_NANOSLEEP 1 |
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|
206 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
207 | # define EV_USE_NANOSLEEP 0 |
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|
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 |
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|
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 |
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301 | #endif |
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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) |
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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 |
… | |
… | |
328 | typedef ev_watcher_time *WT; |
404 | typedef ev_watcher_time *WT; |
329 | |
405 | |
330 | #define ev_active(w) ((W)(w))->active |
406 | #define ev_active(w) ((W)(w))->active |
331 | #define ev_at(w) ((WT)(w))->at |
407 | #define ev_at(w) ((WT)(w))->at |
332 | |
408 | |
333 | #if EV_USE_MONOTONIC |
409 | #if EV_USE_REALTIME |
334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
410 | /* 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 */ |
411 | /* giving it a reasonably high chance of working on typical architetcures */ |
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|
412 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
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413 | #endif |
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414 | |
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415 | #if EV_USE_MONOTONIC |
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
416 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
337 | #endif |
417 | #endif |
338 | |
418 | |
339 | #ifdef _WIN32 |
419 | #ifdef _WIN32 |
340 | # include "ev_win32.c" |
420 | # include "ev_win32.c" |
… | |
… | |
349 | { |
429 | { |
350 | syserr_cb = cb; |
430 | syserr_cb = cb; |
351 | } |
431 | } |
352 | |
432 | |
353 | static void noinline |
433 | static void noinline |
354 | syserr (const char *msg) |
434 | ev_syserr (const char *msg) |
355 | { |
435 | { |
356 | if (!msg) |
436 | if (!msg) |
357 | msg = "(libev) system error"; |
437 | msg = "(libev) system error"; |
358 | |
438 | |
359 | if (syserr_cb) |
439 | if (syserr_cb) |
… | |
… | |
405 | #define ev_malloc(size) ev_realloc (0, (size)) |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
406 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
407 | |
487 | |
408 | /*****************************************************************************/ |
488 | /*****************************************************************************/ |
409 | |
489 | |
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|
490 | /* file descriptor info structure */ |
410 | typedef struct |
491 | typedef struct |
411 | { |
492 | { |
412 | WL head; |
493 | WL head; |
413 | unsigned char events; |
494 | unsigned char events; /* the events watched for */ |
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|
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
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496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
414 | unsigned char reify; |
497 | unsigned char unused; |
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498 | #if EV_USE_EPOLL |
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499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
500 | #endif |
415 | #if EV_SELECT_IS_WINSOCKET |
501 | #if EV_SELECT_IS_WINSOCKET |
416 | SOCKET handle; |
502 | SOCKET handle; |
417 | #endif |
503 | #endif |
418 | } ANFD; |
504 | } ANFD; |
419 | |
505 | |
|
|
506 | /* stores the pending event set for a given watcher */ |
420 | typedef struct |
507 | typedef struct |
421 | { |
508 | { |
422 | W w; |
509 | W w; |
423 | int events; |
510 | int events; /* the pending event set for the given watcher */ |
424 | } ANPENDING; |
511 | } ANPENDING; |
425 | |
512 | |
426 | #if EV_USE_INOTIFY |
513 | #if EV_USE_INOTIFY |
|
|
514 | /* hash table entry per inotify-id */ |
427 | typedef struct |
515 | typedef struct |
428 | { |
516 | { |
429 | WL head; |
517 | WL head; |
430 | } ANFS; |
518 | } ANFS; |
|
|
519 | #endif |
|
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520 | |
|
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521 | /* Heap Entry */ |
|
|
522 | #if EV_HEAP_CACHE_AT |
|
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523 | /* a heap element */ |
|
|
524 | typedef struct { |
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525 | ev_tstamp at; |
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526 | WT w; |
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527 | } ANHE; |
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528 | |
|
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529 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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530 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
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531 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
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532 | #else |
|
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533 | /* a heap element */ |
|
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534 | typedef WT ANHE; |
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535 | |
|
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536 | #define ANHE_w(he) (he) |
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537 | #define ANHE_at(he) (he)->at |
|
|
538 | #define ANHE_at_cache(he) |
431 | #endif |
539 | #endif |
432 | |
540 | |
433 | #if EV_MULTIPLICITY |
541 | #if EV_MULTIPLICITY |
434 | |
542 | |
435 | struct ev_loop |
543 | struct ev_loop |
… | |
… | |
456 | |
564 | |
457 | #endif |
565 | #endif |
458 | |
566 | |
459 | /*****************************************************************************/ |
567 | /*****************************************************************************/ |
460 | |
568 | |
|
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569 | #ifndef EV_HAVE_EV_TIME |
461 | ev_tstamp |
570 | ev_tstamp |
462 | ev_time (void) |
571 | ev_time (void) |
463 | { |
572 | { |
464 | #if EV_USE_REALTIME |
573 | #if EV_USE_REALTIME |
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574 | if (expect_true (have_realtime)) |
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575 | { |
465 | struct timespec ts; |
576 | struct timespec ts; |
466 | clock_gettime (CLOCK_REALTIME, &ts); |
577 | clock_gettime (CLOCK_REALTIME, &ts); |
467 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
578 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
468 | #else |
579 | } |
|
|
580 | #endif |
|
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581 | |
469 | struct timeval tv; |
582 | struct timeval tv; |
470 | gettimeofday (&tv, 0); |
583 | gettimeofday (&tv, 0); |
471 | return tv.tv_sec + tv.tv_usec * 1e-6; |
584 | return tv.tv_sec + tv.tv_usec * 1e-6; |
472 | #endif |
|
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473 | } |
585 | } |
|
|
586 | #endif |
474 | |
587 | |
475 | ev_tstamp inline_size |
588 | inline_size ev_tstamp |
476 | get_clock (void) |
589 | get_clock (void) |
477 | { |
590 | { |
478 | #if EV_USE_MONOTONIC |
591 | #if EV_USE_MONOTONIC |
479 | if (expect_true (have_monotonic)) |
592 | if (expect_true (have_monotonic)) |
480 | { |
593 | { |
… | |
… | |
513 | struct timeval tv; |
626 | struct timeval tv; |
514 | |
627 | |
515 | tv.tv_sec = (time_t)delay; |
628 | tv.tv_sec = (time_t)delay; |
516 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
629 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
517 | |
630 | |
|
|
631 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
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632 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
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633 | /* by older ones */ |
518 | select (0, 0, 0, 0, &tv); |
634 | select (0, 0, 0, 0, &tv); |
519 | #endif |
635 | #endif |
520 | } |
636 | } |
521 | } |
637 | } |
522 | |
638 | |
523 | /*****************************************************************************/ |
639 | /*****************************************************************************/ |
524 | |
640 | |
525 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
641 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
526 | |
642 | |
527 | int inline_size |
643 | /* find a suitable new size for the given array, */ |
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644 | /* hopefully by rounding to a ncie-to-malloc size */ |
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645 | inline_size int |
528 | array_nextsize (int elem, int cur, int cnt) |
646 | array_nextsize (int elem, int cur, int cnt) |
529 | { |
647 | { |
530 | int ncur = cur + 1; |
648 | int ncur = cur + 1; |
531 | |
649 | |
532 | do |
650 | do |
… | |
… | |
549 | array_realloc (int elem, void *base, int *cur, int cnt) |
667 | array_realloc (int elem, void *base, int *cur, int cnt) |
550 | { |
668 | { |
551 | *cur = array_nextsize (elem, *cur, cnt); |
669 | *cur = array_nextsize (elem, *cur, cnt); |
552 | return ev_realloc (base, elem * *cur); |
670 | return ev_realloc (base, elem * *cur); |
553 | } |
671 | } |
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|
672 | |
|
|
673 | #define array_init_zero(base,count) \ |
|
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674 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
554 | |
675 | |
555 | #define array_needsize(type,base,cur,cnt,init) \ |
676 | #define array_needsize(type,base,cur,cnt,init) \ |
556 | if (expect_false ((cnt) > (cur))) \ |
677 | if (expect_false ((cnt) > (cur))) \ |
557 | { \ |
678 | { \ |
558 | int ocur_ = (cur); \ |
679 | int ocur_ = (cur); \ |
… | |
… | |
570 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
691 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
571 | } |
692 | } |
572 | #endif |
693 | #endif |
573 | |
694 | |
574 | #define array_free(stem, idx) \ |
695 | #define array_free(stem, idx) \ |
575 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
696 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
576 | |
697 | |
577 | /*****************************************************************************/ |
698 | /*****************************************************************************/ |
|
|
699 | |
|
|
700 | /* dummy callback for pending events */ |
|
|
701 | static void noinline |
|
|
702 | pendingcb (EV_P_ ev_prepare *w, int revents) |
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703 | { |
|
|
704 | } |
578 | |
705 | |
579 | void noinline |
706 | void noinline |
580 | ev_feed_event (EV_P_ void *w, int revents) |
707 | ev_feed_event (EV_P_ void *w, int revents) |
581 | { |
708 | { |
582 | W w_ = (W)w; |
709 | W w_ = (W)w; |
… | |
… | |
591 | pendings [pri][w_->pending - 1].w = w_; |
718 | pendings [pri][w_->pending - 1].w = w_; |
592 | pendings [pri][w_->pending - 1].events = revents; |
719 | pendings [pri][w_->pending - 1].events = revents; |
593 | } |
720 | } |
594 | } |
721 | } |
595 | |
722 | |
596 | void inline_speed |
723 | inline_speed void |
|
|
724 | feed_reverse (EV_P_ W w) |
|
|
725 | { |
|
|
726 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
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727 | rfeeds [rfeedcnt++] = w; |
|
|
728 | } |
|
|
729 | |
|
|
730 | inline_size void |
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731 | feed_reverse_done (EV_P_ int revents) |
|
|
732 | { |
|
|
733 | do |
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734 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
735 | while (rfeedcnt); |
|
|
736 | } |
|
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737 | |
|
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738 | inline_speed void |
597 | queue_events (EV_P_ W *events, int eventcnt, int type) |
739 | queue_events (EV_P_ W *events, int eventcnt, int type) |
598 | { |
740 | { |
599 | int i; |
741 | int i; |
600 | |
742 | |
601 | for (i = 0; i < eventcnt; ++i) |
743 | for (i = 0; i < eventcnt; ++i) |
602 | ev_feed_event (EV_A_ events [i], type); |
744 | ev_feed_event (EV_A_ events [i], type); |
603 | } |
745 | } |
604 | |
746 | |
605 | /*****************************************************************************/ |
747 | /*****************************************************************************/ |
606 | |
748 | |
607 | void inline_size |
749 | inline_speed void |
608 | anfds_init (ANFD *base, int count) |
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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) |
750 | fd_event (EV_P_ int fd, int revents) |
622 | { |
751 | { |
623 | ANFD *anfd = anfds + fd; |
752 | ANFD *anfd = anfds + fd; |
624 | ev_io *w; |
753 | ev_io *w; |
625 | |
754 | |
… | |
… | |
637 | { |
766 | { |
638 | if (fd >= 0 && fd < anfdmax) |
767 | if (fd >= 0 && fd < anfdmax) |
639 | fd_event (EV_A_ fd, revents); |
768 | fd_event (EV_A_ fd, revents); |
640 | } |
769 | } |
641 | |
770 | |
642 | void inline_size |
771 | /* make sure the external fd watch events are in-sync */ |
|
|
772 | /* with the kernel/libev internal state */ |
|
|
773 | inline_size void |
643 | fd_reify (EV_P) |
774 | fd_reify (EV_P) |
644 | { |
775 | { |
645 | int i; |
776 | int i; |
646 | |
777 | |
647 | for (i = 0; i < fdchangecnt; ++i) |
778 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
656 | events |= (unsigned char)w->events; |
787 | events |= (unsigned char)w->events; |
657 | |
788 | |
658 | #if EV_SELECT_IS_WINSOCKET |
789 | #if EV_SELECT_IS_WINSOCKET |
659 | if (events) |
790 | if (events) |
660 | { |
791 | { |
661 | unsigned long argp; |
792 | unsigned long arg; |
662 | #ifdef EV_FD_TO_WIN32_HANDLE |
793 | #ifdef EV_FD_TO_WIN32_HANDLE |
663 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
794 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
664 | #else |
795 | #else |
665 | anfd->handle = _get_osfhandle (fd); |
796 | anfd->handle = _get_osfhandle (fd); |
666 | #endif |
797 | #endif |
667 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
798 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
668 | } |
799 | } |
669 | #endif |
800 | #endif |
670 | |
801 | |
671 | { |
802 | { |
672 | unsigned char o_events = anfd->events; |
803 | unsigned char o_events = anfd->events; |
673 | unsigned char o_reify = anfd->reify; |
804 | unsigned char o_reify = anfd->reify; |
674 | |
805 | |
675 | anfd->reify = 0; |
806 | anfd->reify = 0; |
676 | anfd->events = events; |
807 | anfd->events = events; |
677 | |
808 | |
678 | if (o_events != events || o_reify & EV_IOFDSET) |
809 | if (o_events != events || o_reify & EV__IOFDSET) |
679 | backend_modify (EV_A_ fd, o_events, events); |
810 | backend_modify (EV_A_ fd, o_events, events); |
680 | } |
811 | } |
681 | } |
812 | } |
682 | |
813 | |
683 | fdchangecnt = 0; |
814 | fdchangecnt = 0; |
684 | } |
815 | } |
685 | |
816 | |
686 | void inline_size |
817 | /* something about the given fd changed */ |
|
|
818 | inline_size void |
687 | fd_change (EV_P_ int fd, int flags) |
819 | fd_change (EV_P_ int fd, int flags) |
688 | { |
820 | { |
689 | unsigned char reify = anfds [fd].reify; |
821 | unsigned char reify = anfds [fd].reify; |
690 | anfds [fd].reify |= flags; |
822 | anfds [fd].reify |= flags; |
691 | |
823 | |
… | |
… | |
695 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
827 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
696 | fdchanges [fdchangecnt - 1] = fd; |
828 | fdchanges [fdchangecnt - 1] = fd; |
697 | } |
829 | } |
698 | } |
830 | } |
699 | |
831 | |
700 | void inline_speed |
832 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
833 | inline_speed void |
701 | fd_kill (EV_P_ int fd) |
834 | fd_kill (EV_P_ int fd) |
702 | { |
835 | { |
703 | ev_io *w; |
836 | ev_io *w; |
704 | |
837 | |
705 | while ((w = (ev_io *)anfds [fd].head)) |
838 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
707 | ev_io_stop (EV_A_ w); |
840 | ev_io_stop (EV_A_ w); |
708 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
841 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
709 | } |
842 | } |
710 | } |
843 | } |
711 | |
844 | |
712 | int inline_size |
845 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
846 | inline_size int |
713 | fd_valid (int fd) |
847 | fd_valid (int fd) |
714 | { |
848 | { |
715 | #ifdef _WIN32 |
849 | #ifdef _WIN32 |
716 | return _get_osfhandle (fd) != -1; |
850 | return _get_osfhandle (fd) != -1; |
717 | #else |
851 | #else |
… | |
… | |
725 | { |
859 | { |
726 | int fd; |
860 | int fd; |
727 | |
861 | |
728 | for (fd = 0; fd < anfdmax; ++fd) |
862 | for (fd = 0; fd < anfdmax; ++fd) |
729 | if (anfds [fd].events) |
863 | if (anfds [fd].events) |
730 | if (!fd_valid (fd) == -1 && errno == EBADF) |
864 | if (!fd_valid (fd) && errno == EBADF) |
731 | fd_kill (EV_A_ fd); |
865 | fd_kill (EV_A_ fd); |
732 | } |
866 | } |
733 | |
867 | |
734 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
868 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
735 | static void noinline |
869 | static void noinline |
… | |
… | |
753 | |
887 | |
754 | for (fd = 0; fd < anfdmax; ++fd) |
888 | for (fd = 0; fd < anfdmax; ++fd) |
755 | if (anfds [fd].events) |
889 | if (anfds [fd].events) |
756 | { |
890 | { |
757 | anfds [fd].events = 0; |
891 | anfds [fd].events = 0; |
|
|
892 | anfds [fd].emask = 0; |
758 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
893 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
759 | } |
894 | } |
760 | } |
895 | } |
761 | |
896 | |
762 | /*****************************************************************************/ |
897 | /*****************************************************************************/ |
|
|
898 | |
|
|
899 | /* |
|
|
900 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
901 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
902 | * the branching factor of the d-tree. |
|
|
903 | */ |
763 | |
904 | |
764 | /* |
905 | /* |
765 | * at the moment we allow libev the luxury of two heaps, |
906 | * 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 |
907 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
767 | * which is more cache-efficient. |
908 | * which is more cache-efficient. |
768 | * the difference is about 5% with 50000+ watchers. |
909 | * the difference is about 5% with 50000+ watchers. |
769 | */ |
910 | */ |
770 | #define USE_4HEAP !EV_MINIMAL |
|
|
771 | #if USE_4HEAP |
911 | #if EV_USE_4HEAP |
772 | |
912 | |
773 | #define DHEAP 4 |
913 | #define DHEAP 4 |
774 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
914 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
915 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
916 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
775 | |
917 | |
776 | /* towards the root */ |
918 | /* away from the root */ |
777 | void inline_speed |
919 | inline_speed void |
778 | upheap (WT *heap, int k) |
920 | downheap (ANHE *heap, int N, int k) |
779 | { |
921 | { |
780 | WT w = heap [k]; |
922 | ANHE he = heap [k]; |
|
|
923 | ANHE *E = heap + N + HEAP0; |
781 | |
924 | |
782 | for (;;) |
925 | for (;;) |
783 | { |
926 | { |
784 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
785 | |
|
|
786 | if (p >= HEAP0 || heap [p]->at <= w->at) |
|
|
787 | break; |
|
|
788 | |
|
|
789 | heap [k] = heap [p]; |
|
|
790 | ev_active (heap [k]) = k; |
|
|
791 | k = p; |
|
|
792 | } |
|
|
793 | |
|
|
794 | heap [k] = w; |
|
|
795 | ev_active (heap [k]) = k; |
|
|
796 | } |
|
|
797 | |
|
|
798 | /* away from the root */ |
|
|
799 | void inline_speed |
|
|
800 | downheap (WT *heap, int N, int k) |
|
|
801 | { |
|
|
802 | WT w = heap [k]; |
|
|
803 | WT *E = heap + N + HEAP0; |
|
|
804 | |
|
|
805 | for (;;) |
|
|
806 | { |
|
|
807 | ev_tstamp minat; |
927 | ev_tstamp minat; |
808 | WT *minpos; |
928 | ANHE *minpos; |
809 | WT *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
929 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
810 | |
930 | |
811 | // find minimum child |
931 | /* find minimum child */ |
812 | if (expect_true (pos + DHEAP - 1 < E)) |
932 | if (expect_true (pos + DHEAP - 1 < E)) |
813 | { |
933 | { |
814 | /* fast path */ |
|
|
815 | (minpos = pos + 0), (minat = (*minpos)->at); |
934 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
816 | if (pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
935 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
817 | if (pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
936 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
818 | if (pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
937 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
938 | } |
|
|
939 | else if (pos < E) |
|
|
940 | { |
|
|
941 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
942 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
943 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
944 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
819 | } |
945 | } |
820 | else |
946 | else |
821 | { |
|
|
822 | /* slow path */ |
|
|
823 | if (pos >= E) |
|
|
824 | break; |
|
|
825 | (minpos = pos + 0), (minat = (*minpos)->at); |
|
|
826 | if (pos + 1 < E && pos [1]->at < minat) (minpos = pos + 1), (minat = (*minpos)->at); |
|
|
827 | if (pos + 2 < E && pos [2]->at < minat) (minpos = pos + 2), (minat = (*minpos)->at); |
|
|
828 | if (pos + 3 < E && pos [3]->at < minat) (minpos = pos + 3), (minat = (*minpos)->at); |
|
|
829 | } |
|
|
830 | |
|
|
831 | if (w->at <= minat) |
|
|
832 | break; |
947 | break; |
833 | |
948 | |
834 | ev_active (*minpos) = k; |
949 | if (ANHE_at (he) <= minat) |
|
|
950 | break; |
|
|
951 | |
835 | heap [k] = *minpos; |
952 | heap [k] = *minpos; |
|
|
953 | ev_active (ANHE_w (*minpos)) = k; |
836 | |
954 | |
837 | k = minpos - heap; |
955 | k = minpos - heap; |
838 | } |
956 | } |
839 | |
957 | |
840 | heap [k] = w; |
958 | heap [k] = he; |
841 | ev_active (heap [k]) = k; |
959 | ev_active (ANHE_w (he)) = k; |
842 | } |
960 | } |
843 | |
961 | |
844 | #else // 4HEAP |
962 | #else /* 4HEAP */ |
845 | |
963 | |
846 | #define HEAP0 1 |
964 | #define HEAP0 1 |
|
|
965 | #define HPARENT(k) ((k) >> 1) |
|
|
966 | #define UPHEAP_DONE(p,k) (!(p)) |
847 | |
967 | |
848 | /* towards the root */ |
968 | /* away from the root */ |
849 | void inline_speed |
969 | inline_speed void |
850 | upheap (WT *heap, int k) |
970 | downheap (ANHE *heap, int N, int k) |
851 | { |
971 | { |
852 | WT w = heap [k]; |
972 | ANHE he = heap [k]; |
853 | |
973 | |
854 | for (;;) |
974 | for (;;) |
855 | { |
975 | { |
856 | int p = k >> 1; |
976 | int c = k << 1; |
857 | |
977 | |
858 | /* maybe we could use a dummy element at heap [0]? */ |
978 | if (c > N + HEAP0 - 1) |
859 | if (!p || heap [p]->at <= w->at) |
|
|
860 | break; |
979 | break; |
861 | |
980 | |
862 | heap [k] = heap [p]; |
981 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
863 | ev_active (heap [k]) = k; |
982 | ? 1 : 0; |
864 | k = p; |
|
|
865 | } |
|
|
866 | |
983 | |
867 | heap [k] = w; |
984 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
868 | ev_active (heap [k]) = k; |
|
|
869 | } |
|
|
870 | |
|
|
871 | /* away from the root */ |
|
|
872 | void inline_speed |
|
|
873 | downheap (WT *heap, int N, int k) |
|
|
874 | { |
|
|
875 | WT w = heap [k]; |
|
|
876 | |
|
|
877 | for (;;) |
|
|
878 | { |
|
|
879 | int c = k << 1; |
|
|
880 | |
|
|
881 | if (c > N) |
|
|
882 | break; |
985 | break; |
883 | |
986 | |
884 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
885 | ? 1 : 0; |
|
|
886 | |
|
|
887 | if (w->at <= heap [c]->at) |
|
|
888 | break; |
|
|
889 | |
|
|
890 | heap [k] = heap [c]; |
987 | heap [k] = heap [c]; |
891 | ((W)heap [k])->active = k; |
988 | ev_active (ANHE_w (heap [k])) = k; |
892 | |
989 | |
893 | k = c; |
990 | k = c; |
894 | } |
991 | } |
895 | |
992 | |
896 | heap [k] = w; |
993 | heap [k] = he; |
|
|
994 | ev_active (ANHE_w (he)) = k; |
|
|
995 | } |
|
|
996 | #endif |
|
|
997 | |
|
|
998 | /* towards the root */ |
|
|
999 | inline_speed void |
|
|
1000 | upheap (ANHE *heap, int k) |
|
|
1001 | { |
|
|
1002 | ANHE he = heap [k]; |
|
|
1003 | |
|
|
1004 | for (;;) |
|
|
1005 | { |
|
|
1006 | int p = HPARENT (k); |
|
|
1007 | |
|
|
1008 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1009 | break; |
|
|
1010 | |
|
|
1011 | heap [k] = heap [p]; |
897 | ev_active (heap [k]) = k; |
1012 | ev_active (ANHE_w (heap [k])) = k; |
898 | } |
1013 | k = p; |
899 | #endif |
1014 | } |
900 | |
1015 | |
901 | void inline_size |
1016 | heap [k] = he; |
|
|
1017 | ev_active (ANHE_w (he)) = k; |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | /* move an element suitably so it is in a correct place */ |
|
|
1021 | inline_size void |
902 | adjustheap (WT *heap, int N, int k) |
1022 | adjustheap (ANHE *heap, int N, int k) |
903 | { |
1023 | { |
|
|
1024 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
904 | upheap (heap, k); |
1025 | upheap (heap, k); |
|
|
1026 | else |
905 | downheap (heap, N, k); |
1027 | downheap (heap, N, k); |
|
|
1028 | } |
|
|
1029 | |
|
|
1030 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1031 | inline_size void |
|
|
1032 | reheap (ANHE *heap, int N) |
|
|
1033 | { |
|
|
1034 | int i; |
|
|
1035 | |
|
|
1036 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1037 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1038 | for (i = 0; i < N; ++i) |
|
|
1039 | upheap (heap, i + HEAP0); |
906 | } |
1040 | } |
907 | |
1041 | |
908 | /*****************************************************************************/ |
1042 | /*****************************************************************************/ |
909 | |
1043 | |
|
|
1044 | /* associate signal watchers to a signal signal */ |
910 | typedef struct |
1045 | typedef struct |
911 | { |
1046 | { |
912 | WL head; |
1047 | WL head; |
913 | EV_ATOMIC_T gotsig; |
1048 | EV_ATOMIC_T gotsig; |
914 | } ANSIG; |
1049 | } ANSIG; |
… | |
… | |
916 | static ANSIG *signals; |
1051 | static ANSIG *signals; |
917 | static int signalmax; |
1052 | static int signalmax; |
918 | |
1053 | |
919 | static EV_ATOMIC_T gotsig; |
1054 | static EV_ATOMIC_T gotsig; |
920 | |
1055 | |
921 | void inline_size |
|
|
922 | signals_init (ANSIG *base, int count) |
|
|
923 | { |
|
|
924 | while (count--) |
|
|
925 | { |
|
|
926 | base->head = 0; |
|
|
927 | base->gotsig = 0; |
|
|
928 | |
|
|
929 | ++base; |
|
|
930 | } |
|
|
931 | } |
|
|
932 | |
|
|
933 | /*****************************************************************************/ |
1056 | /*****************************************************************************/ |
934 | |
1057 | |
935 | void inline_speed |
1058 | /* used to prepare libev internal fd's */ |
|
|
1059 | /* this is not fork-safe */ |
|
|
1060 | inline_speed void |
936 | fd_intern (int fd) |
1061 | fd_intern (int fd) |
937 | { |
1062 | { |
938 | #ifdef _WIN32 |
1063 | #ifdef _WIN32 |
939 | int arg = 1; |
1064 | unsigned long arg = 1; |
940 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1065 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
941 | #else |
1066 | #else |
942 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1067 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
943 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1068 | fcntl (fd, F_SETFL, O_NONBLOCK); |
944 | #endif |
1069 | #endif |
945 | } |
1070 | } |
946 | |
1071 | |
947 | static void noinline |
1072 | static void noinline |
948 | evpipe_init (EV_P) |
1073 | evpipe_init (EV_P) |
949 | { |
1074 | { |
950 | if (!ev_is_active (&pipeev)) |
1075 | if (!ev_is_active (&pipe_w)) |
951 | { |
1076 | { |
952 | #if EV_USE_EVENTFD |
1077 | #if EV_USE_EVENTFD |
953 | if ((evfd = eventfd (0, 0)) >= 0) |
1078 | if ((evfd = eventfd (0, 0)) >= 0) |
954 | { |
1079 | { |
955 | evpipe [0] = -1; |
1080 | evpipe [0] = -1; |
956 | fd_intern (evfd); |
1081 | fd_intern (evfd); |
957 | ev_io_set (&pipeev, evfd, EV_READ); |
1082 | ev_io_set (&pipe_w, evfd, EV_READ); |
958 | } |
1083 | } |
959 | else |
1084 | else |
960 | #endif |
1085 | #endif |
961 | { |
1086 | { |
962 | while (pipe (evpipe)) |
1087 | while (pipe (evpipe)) |
963 | syserr ("(libev) error creating signal/async pipe"); |
1088 | ev_syserr ("(libev) error creating signal/async pipe"); |
964 | |
1089 | |
965 | fd_intern (evpipe [0]); |
1090 | fd_intern (evpipe [0]); |
966 | fd_intern (evpipe [1]); |
1091 | fd_intern (evpipe [1]); |
967 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1092 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
968 | } |
1093 | } |
969 | |
1094 | |
970 | ev_io_start (EV_A_ &pipeev); |
1095 | ev_io_start (EV_A_ &pipe_w); |
971 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1096 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
972 | } |
1097 | } |
973 | } |
1098 | } |
974 | |
1099 | |
975 | void inline_size |
1100 | inline_size void |
976 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1101 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
977 | { |
1102 | { |
978 | if (!*flag) |
1103 | if (!*flag) |
979 | { |
1104 | { |
980 | int old_errno = errno; /* save errno because write might clobber it */ |
1105 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
993 | |
1118 | |
994 | errno = old_errno; |
1119 | errno = old_errno; |
995 | } |
1120 | } |
996 | } |
1121 | } |
997 | |
1122 | |
|
|
1123 | /* called whenever the libev signal pipe */ |
|
|
1124 | /* got some events (signal, async) */ |
998 | static void |
1125 | static void |
999 | pipecb (EV_P_ ev_io *iow, int revents) |
1126 | pipecb (EV_P_ ev_io *iow, int revents) |
1000 | { |
1127 | { |
1001 | #if EV_USE_EVENTFD |
1128 | #if EV_USE_EVENTFD |
1002 | if (evfd >= 0) |
1129 | if (evfd >= 0) |
… | |
… | |
1058 | ev_feed_signal_event (EV_P_ int signum) |
1185 | ev_feed_signal_event (EV_P_ int signum) |
1059 | { |
1186 | { |
1060 | WL w; |
1187 | WL w; |
1061 | |
1188 | |
1062 | #if EV_MULTIPLICITY |
1189 | #if EV_MULTIPLICITY |
1063 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1190 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1064 | #endif |
1191 | #endif |
1065 | |
1192 | |
1066 | --signum; |
1193 | --signum; |
1067 | |
1194 | |
1068 | if (signum < 0 || signum >= signalmax) |
1195 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
1084 | |
1211 | |
1085 | #ifndef WIFCONTINUED |
1212 | #ifndef WIFCONTINUED |
1086 | # define WIFCONTINUED(status) 0 |
1213 | # define WIFCONTINUED(status) 0 |
1087 | #endif |
1214 | #endif |
1088 | |
1215 | |
1089 | void inline_speed |
1216 | /* handle a single child status event */ |
|
|
1217 | inline_speed void |
1090 | child_reap (EV_P_ int chain, int pid, int status) |
1218 | child_reap (EV_P_ int chain, int pid, int status) |
1091 | { |
1219 | { |
1092 | ev_child *w; |
1220 | ev_child *w; |
1093 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1221 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1094 | |
1222 | |
… | |
… | |
1107 | |
1235 | |
1108 | #ifndef WCONTINUED |
1236 | #ifndef WCONTINUED |
1109 | # define WCONTINUED 0 |
1237 | # define WCONTINUED 0 |
1110 | #endif |
1238 | #endif |
1111 | |
1239 | |
|
|
1240 | /* called on sigchld etc., calls waitpid */ |
1112 | static void |
1241 | static void |
1113 | childcb (EV_P_ ev_signal *sw, int revents) |
1242 | childcb (EV_P_ ev_signal *sw, int revents) |
1114 | { |
1243 | { |
1115 | int pid, status; |
1244 | int pid, status; |
1116 | |
1245 | |
… | |
… | |
1197 | /* kqueue is borked on everything but netbsd apparently */ |
1326 | /* kqueue is borked on everything but netbsd apparently */ |
1198 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1327 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1199 | flags &= ~EVBACKEND_KQUEUE; |
1328 | flags &= ~EVBACKEND_KQUEUE; |
1200 | #endif |
1329 | #endif |
1201 | #ifdef __APPLE__ |
1330 | #ifdef __APPLE__ |
1202 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1331 | /* only select works correctly on that "unix-certified" platform */ |
1203 | flags &= ~EVBACKEND_POLL; |
1332 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1333 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1204 | #endif |
1334 | #endif |
1205 | |
1335 | |
1206 | return flags; |
1336 | return flags; |
1207 | } |
1337 | } |
1208 | |
1338 | |
… | |
… | |
1240 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1370 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1241 | { |
1371 | { |
1242 | timeout_blocktime = interval; |
1372 | timeout_blocktime = interval; |
1243 | } |
1373 | } |
1244 | |
1374 | |
|
|
1375 | /* initialise a loop structure, must be zero-initialised */ |
1245 | static void noinline |
1376 | static void noinline |
1246 | loop_init (EV_P_ unsigned int flags) |
1377 | loop_init (EV_P_ unsigned int flags) |
1247 | { |
1378 | { |
1248 | if (!backend) |
1379 | if (!backend) |
1249 | { |
1380 | { |
|
|
1381 | #if EV_USE_REALTIME |
|
|
1382 | if (!have_realtime) |
|
|
1383 | { |
|
|
1384 | struct timespec ts; |
|
|
1385 | |
|
|
1386 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1387 | have_realtime = 1; |
|
|
1388 | } |
|
|
1389 | #endif |
|
|
1390 | |
1250 | #if EV_USE_MONOTONIC |
1391 | #if EV_USE_MONOTONIC |
|
|
1392 | if (!have_monotonic) |
1251 | { |
1393 | { |
1252 | struct timespec ts; |
1394 | struct timespec ts; |
|
|
1395 | |
1253 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1396 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1254 | have_monotonic = 1; |
1397 | have_monotonic = 1; |
1255 | } |
1398 | } |
1256 | #endif |
1399 | #endif |
1257 | |
1400 | |
1258 | ev_rt_now = ev_time (); |
1401 | ev_rt_now = ev_time (); |
1259 | mn_now = get_clock (); |
1402 | mn_now = get_clock (); |
1260 | now_floor = mn_now; |
1403 | now_floor = mn_now; |
… | |
… | |
1297 | #endif |
1440 | #endif |
1298 | #if EV_USE_SELECT |
1441 | #if EV_USE_SELECT |
1299 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1442 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1300 | #endif |
1443 | #endif |
1301 | |
1444 | |
|
|
1445 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1446 | |
1302 | ev_init (&pipeev, pipecb); |
1447 | ev_init (&pipe_w, pipecb); |
1303 | ev_set_priority (&pipeev, EV_MAXPRI); |
1448 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1304 | } |
1449 | } |
1305 | } |
1450 | } |
1306 | |
1451 | |
|
|
1452 | /* free up a loop structure */ |
1307 | static void noinline |
1453 | static void noinline |
1308 | loop_destroy (EV_P) |
1454 | loop_destroy (EV_P) |
1309 | { |
1455 | { |
1310 | int i; |
1456 | int i; |
1311 | |
1457 | |
1312 | if (ev_is_active (&pipeev)) |
1458 | if (ev_is_active (&pipe_w)) |
1313 | { |
1459 | { |
1314 | ev_ref (EV_A); /* signal watcher */ |
1460 | ev_ref (EV_A); /* signal watcher */ |
1315 | ev_io_stop (EV_A_ &pipeev); |
1461 | ev_io_stop (EV_A_ &pipe_w); |
1316 | |
1462 | |
1317 | #if EV_USE_EVENTFD |
1463 | #if EV_USE_EVENTFD |
1318 | if (evfd >= 0) |
1464 | if (evfd >= 0) |
1319 | close (evfd); |
1465 | close (evfd); |
1320 | #endif |
1466 | #endif |
… | |
… | |
1359 | } |
1505 | } |
1360 | |
1506 | |
1361 | ev_free (anfds); anfdmax = 0; |
1507 | ev_free (anfds); anfdmax = 0; |
1362 | |
1508 | |
1363 | /* have to use the microsoft-never-gets-it-right macro */ |
1509 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1510 | array_free (rfeed, EMPTY); |
1364 | array_free (fdchange, EMPTY); |
1511 | array_free (fdchange, EMPTY); |
1365 | array_free (timer, EMPTY); |
1512 | array_free (timer, EMPTY); |
1366 | #if EV_PERIODIC_ENABLE |
1513 | #if EV_PERIODIC_ENABLE |
1367 | array_free (periodic, EMPTY); |
1514 | array_free (periodic, EMPTY); |
1368 | #endif |
1515 | #endif |
… | |
… | |
1377 | |
1524 | |
1378 | backend = 0; |
1525 | backend = 0; |
1379 | } |
1526 | } |
1380 | |
1527 | |
1381 | #if EV_USE_INOTIFY |
1528 | #if EV_USE_INOTIFY |
1382 | void inline_size infy_fork (EV_P); |
1529 | inline_size void infy_fork (EV_P); |
1383 | #endif |
1530 | #endif |
1384 | |
1531 | |
1385 | void inline_size |
1532 | inline_size void |
1386 | loop_fork (EV_P) |
1533 | loop_fork (EV_P) |
1387 | { |
1534 | { |
1388 | #if EV_USE_PORT |
1535 | #if EV_USE_PORT |
1389 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1536 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1390 | #endif |
1537 | #endif |
… | |
… | |
1396 | #endif |
1543 | #endif |
1397 | #if EV_USE_INOTIFY |
1544 | #if EV_USE_INOTIFY |
1398 | infy_fork (EV_A); |
1545 | infy_fork (EV_A); |
1399 | #endif |
1546 | #endif |
1400 | |
1547 | |
1401 | if (ev_is_active (&pipeev)) |
1548 | if (ev_is_active (&pipe_w)) |
1402 | { |
1549 | { |
1403 | /* this "locks" the handlers against writing to the pipe */ |
1550 | /* this "locks" the handlers against writing to the pipe */ |
1404 | /* while we modify the fd vars */ |
1551 | /* while we modify the fd vars */ |
1405 | gotsig = 1; |
1552 | gotsig = 1; |
1406 | #if EV_ASYNC_ENABLE |
1553 | #if EV_ASYNC_ENABLE |
1407 | gotasync = 1; |
1554 | gotasync = 1; |
1408 | #endif |
1555 | #endif |
1409 | |
1556 | |
1410 | ev_ref (EV_A); |
1557 | ev_ref (EV_A); |
1411 | ev_io_stop (EV_A_ &pipeev); |
1558 | ev_io_stop (EV_A_ &pipe_w); |
1412 | |
1559 | |
1413 | #if EV_USE_EVENTFD |
1560 | #if EV_USE_EVENTFD |
1414 | if (evfd >= 0) |
1561 | if (evfd >= 0) |
1415 | close (evfd); |
1562 | close (evfd); |
1416 | #endif |
1563 | #endif |
… | |
… | |
1421 | close (evpipe [1]); |
1568 | close (evpipe [1]); |
1422 | } |
1569 | } |
1423 | |
1570 | |
1424 | evpipe_init (EV_A); |
1571 | evpipe_init (EV_A); |
1425 | /* now iterate over everything, in case we missed something */ |
1572 | /* now iterate over everything, in case we missed something */ |
1426 | pipecb (EV_A_ &pipeev, EV_READ); |
1573 | pipecb (EV_A_ &pipe_w, EV_READ); |
1427 | } |
1574 | } |
1428 | |
1575 | |
1429 | postfork = 0; |
1576 | postfork = 0; |
1430 | } |
1577 | } |
1431 | |
1578 | |
1432 | #if EV_MULTIPLICITY |
1579 | #if EV_MULTIPLICITY |
|
|
1580 | |
1433 | struct ev_loop * |
1581 | struct ev_loop * |
1434 | ev_loop_new (unsigned int flags) |
1582 | ev_loop_new (unsigned int flags) |
1435 | { |
1583 | { |
1436 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1584 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1437 | |
1585 | |
… | |
… | |
1455 | void |
1603 | void |
1456 | ev_loop_fork (EV_P) |
1604 | ev_loop_fork (EV_P) |
1457 | { |
1605 | { |
1458 | postfork = 1; /* must be in line with ev_default_fork */ |
1606 | postfork = 1; /* must be in line with ev_default_fork */ |
1459 | } |
1607 | } |
|
|
1608 | |
|
|
1609 | #if EV_VERIFY |
|
|
1610 | static void noinline |
|
|
1611 | verify_watcher (EV_P_ W w) |
|
|
1612 | { |
|
|
1613 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1614 | |
|
|
1615 | if (w->pending) |
|
|
1616 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1617 | } |
|
|
1618 | |
|
|
1619 | static void noinline |
|
|
1620 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1621 | { |
|
|
1622 | int i; |
|
|
1623 | |
|
|
1624 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1625 | { |
|
|
1626 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1627 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1628 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1629 | |
|
|
1630 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1631 | } |
|
|
1632 | } |
|
|
1633 | |
|
|
1634 | static void noinline |
|
|
1635 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1636 | { |
|
|
1637 | while (cnt--) |
|
|
1638 | { |
|
|
1639 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1640 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1641 | } |
|
|
1642 | } |
|
|
1643 | #endif |
|
|
1644 | |
|
|
1645 | void |
|
|
1646 | ev_loop_verify (EV_P) |
|
|
1647 | { |
|
|
1648 | #if EV_VERIFY |
|
|
1649 | int i; |
|
|
1650 | WL w; |
|
|
1651 | |
|
|
1652 | assert (activecnt >= -1); |
|
|
1653 | |
|
|
1654 | assert (fdchangemax >= fdchangecnt); |
|
|
1655 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1656 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1657 | |
|
|
1658 | assert (anfdmax >= 0); |
|
|
1659 | for (i = 0; i < anfdmax; ++i) |
|
|
1660 | for (w = anfds [i].head; w; w = w->next) |
|
|
1661 | { |
|
|
1662 | verify_watcher (EV_A_ (W)w); |
|
|
1663 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1664 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1665 | } |
|
|
1666 | |
|
|
1667 | assert (timermax >= timercnt); |
|
|
1668 | verify_heap (EV_A_ timers, timercnt); |
|
|
1669 | |
|
|
1670 | #if EV_PERIODIC_ENABLE |
|
|
1671 | assert (periodicmax >= periodiccnt); |
|
|
1672 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1673 | #endif |
|
|
1674 | |
|
|
1675 | for (i = NUMPRI; i--; ) |
|
|
1676 | { |
|
|
1677 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1678 | #if EV_IDLE_ENABLE |
|
|
1679 | assert (idleall >= 0); |
|
|
1680 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1681 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1682 | #endif |
|
|
1683 | } |
|
|
1684 | |
|
|
1685 | #if EV_FORK_ENABLE |
|
|
1686 | assert (forkmax >= forkcnt); |
|
|
1687 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1688 | #endif |
|
|
1689 | |
|
|
1690 | #if EV_ASYNC_ENABLE |
|
|
1691 | assert (asyncmax >= asynccnt); |
|
|
1692 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1693 | #endif |
|
|
1694 | |
|
|
1695 | assert (preparemax >= preparecnt); |
|
|
1696 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1697 | |
|
|
1698 | assert (checkmax >= checkcnt); |
|
|
1699 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1700 | |
|
|
1701 | # if 0 |
|
|
1702 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1703 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1460 | #endif |
1704 | # endif |
|
|
1705 | #endif |
|
|
1706 | } |
|
|
1707 | |
|
|
1708 | #endif /* multiplicity */ |
1461 | |
1709 | |
1462 | #if EV_MULTIPLICITY |
1710 | #if EV_MULTIPLICITY |
1463 | struct ev_loop * |
1711 | struct ev_loop * |
1464 | ev_default_loop_init (unsigned int flags) |
1712 | ev_default_loop_init (unsigned int flags) |
1465 | #else |
1713 | #else |
… | |
… | |
1498 | { |
1746 | { |
1499 | #if EV_MULTIPLICITY |
1747 | #if EV_MULTIPLICITY |
1500 | struct ev_loop *loop = ev_default_loop_ptr; |
1748 | struct ev_loop *loop = ev_default_loop_ptr; |
1501 | #endif |
1749 | #endif |
1502 | |
1750 | |
|
|
1751 | ev_default_loop_ptr = 0; |
|
|
1752 | |
1503 | #ifndef _WIN32 |
1753 | #ifndef _WIN32 |
1504 | ev_ref (EV_A); /* child watcher */ |
1754 | ev_ref (EV_A); /* child watcher */ |
1505 | ev_signal_stop (EV_A_ &childev); |
1755 | ev_signal_stop (EV_A_ &childev); |
1506 | #endif |
1756 | #endif |
1507 | |
1757 | |
… | |
… | |
1513 | { |
1763 | { |
1514 | #if EV_MULTIPLICITY |
1764 | #if EV_MULTIPLICITY |
1515 | struct ev_loop *loop = ev_default_loop_ptr; |
1765 | struct ev_loop *loop = ev_default_loop_ptr; |
1516 | #endif |
1766 | #endif |
1517 | |
1767 | |
1518 | if (backend) |
|
|
1519 | postfork = 1; /* must be in line with ev_loop_fork */ |
1768 | postfork = 1; /* must be in line with ev_loop_fork */ |
1520 | } |
1769 | } |
1521 | |
1770 | |
1522 | /*****************************************************************************/ |
1771 | /*****************************************************************************/ |
1523 | |
1772 | |
1524 | void |
1773 | void |
1525 | ev_invoke (EV_P_ void *w, int revents) |
1774 | ev_invoke (EV_P_ void *w, int revents) |
1526 | { |
1775 | { |
1527 | EV_CB_INVOKE ((W)w, revents); |
1776 | EV_CB_INVOKE ((W)w, revents); |
1528 | } |
1777 | } |
1529 | |
1778 | |
1530 | void inline_speed |
1779 | inline_speed void |
1531 | call_pending (EV_P) |
1780 | call_pending (EV_P) |
1532 | { |
1781 | { |
1533 | int pri; |
1782 | int pri; |
1534 | |
1783 | |
1535 | for (pri = NUMPRI; pri--; ) |
1784 | for (pri = NUMPRI; pri--; ) |
1536 | while (pendingcnt [pri]) |
1785 | while (pendingcnt [pri]) |
1537 | { |
1786 | { |
1538 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1787 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1539 | |
1788 | |
1540 | if (expect_true (p->w)) |
|
|
1541 | { |
|
|
1542 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1789 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1790 | /* ^ this is no longer true, as pending_w could be here */ |
1543 | |
1791 | |
1544 | p->w->pending = 0; |
1792 | p->w->pending = 0; |
1545 | EV_CB_INVOKE (p->w, p->events); |
1793 | EV_CB_INVOKE (p->w, p->events); |
1546 | } |
1794 | EV_FREQUENT_CHECK; |
1547 | } |
1795 | } |
1548 | } |
1796 | } |
1549 | |
1797 | |
1550 | #if EV_IDLE_ENABLE |
1798 | #if EV_IDLE_ENABLE |
1551 | void inline_size |
1799 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
1800 | /* only when higher priorities are idle" logic */ |
|
|
1801 | inline_size void |
1552 | idle_reify (EV_P) |
1802 | idle_reify (EV_P) |
1553 | { |
1803 | { |
1554 | if (expect_false (idleall)) |
1804 | if (expect_false (idleall)) |
1555 | { |
1805 | { |
1556 | int pri; |
1806 | int pri; |
… | |
… | |
1568 | } |
1818 | } |
1569 | } |
1819 | } |
1570 | } |
1820 | } |
1571 | #endif |
1821 | #endif |
1572 | |
1822 | |
1573 | void inline_size |
1823 | /* make timers pending */ |
|
|
1824 | inline_size void |
1574 | timers_reify (EV_P) |
1825 | timers_reify (EV_P) |
1575 | { |
1826 | { |
|
|
1827 | EV_FREQUENT_CHECK; |
|
|
1828 | |
1576 | while (timercnt && ev_at (timers [HEAP0]) <= mn_now) |
1829 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1577 | { |
1830 | { |
1578 | ev_timer *w = (ev_timer *)timers [HEAP0]; |
1831 | do |
1579 | |
|
|
1580 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1581 | |
|
|
1582 | /* first reschedule or stop timer */ |
|
|
1583 | if (w->repeat) |
|
|
1584 | { |
1832 | { |
|
|
1833 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1834 | |
|
|
1835 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1836 | |
|
|
1837 | /* first reschedule or stop timer */ |
|
|
1838 | if (w->repeat) |
|
|
1839 | { |
|
|
1840 | ev_at (w) += w->repeat; |
|
|
1841 | if (ev_at (w) < mn_now) |
|
|
1842 | ev_at (w) = mn_now; |
|
|
1843 | |
1585 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1844 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1586 | |
1845 | |
1587 | ev_at (w) += w->repeat; |
1846 | ANHE_at_cache (timers [HEAP0]); |
1588 | if (ev_at (w) < mn_now) |
|
|
1589 | ev_at (w) = mn_now; |
|
|
1590 | |
|
|
1591 | downheap (timers, timercnt, HEAP0); |
1847 | downheap (timers, timercnt, HEAP0); |
|
|
1848 | } |
|
|
1849 | else |
|
|
1850 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1851 | |
|
|
1852 | EV_FREQUENT_CHECK; |
|
|
1853 | feed_reverse (EV_A_ (W)w); |
1592 | } |
1854 | } |
1593 | else |
1855 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1594 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1595 | |
1856 | |
1596 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1857 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1597 | } |
1858 | } |
1598 | } |
1859 | } |
1599 | |
1860 | |
1600 | #if EV_PERIODIC_ENABLE |
1861 | #if EV_PERIODIC_ENABLE |
1601 | void inline_size |
1862 | /* make periodics pending */ |
|
|
1863 | inline_size void |
1602 | periodics_reify (EV_P) |
1864 | periodics_reify (EV_P) |
1603 | { |
1865 | { |
|
|
1866 | EV_FREQUENT_CHECK; |
|
|
1867 | |
1604 | while (periodiccnt && ev_at (periodics [HEAP0]) <= ev_rt_now) |
1868 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1605 | { |
1869 | { |
1606 | ev_periodic *w = (ev_periodic *)periodics [HEAP0]; |
1870 | int feed_count = 0; |
1607 | |
1871 | |
1608 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1872 | do |
1609 | |
|
|
1610 | /* first reschedule or stop timer */ |
|
|
1611 | if (w->reschedule_cb) |
|
|
1612 | { |
1873 | { |
|
|
1874 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1875 | |
|
|
1876 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1877 | |
|
|
1878 | /* first reschedule or stop timer */ |
|
|
1879 | if (w->reschedule_cb) |
|
|
1880 | { |
1613 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1881 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1882 | |
1614 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
1883 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1884 | |
|
|
1885 | ANHE_at_cache (periodics [HEAP0]); |
1615 | downheap (periodics, periodiccnt, 1); |
1886 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1887 | } |
|
|
1888 | else if (w->interval) |
|
|
1889 | { |
|
|
1890 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1891 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1892 | /* this might happen because of floating point inexactness */ |
|
|
1893 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1894 | { |
|
|
1895 | ev_at (w) += w->interval; |
|
|
1896 | |
|
|
1897 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1898 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1899 | /* has effectively asked to get triggered more often than possible */ |
|
|
1900 | if (ev_at (w) < ev_rt_now) |
|
|
1901 | ev_at (w) = ev_rt_now; |
|
|
1902 | } |
|
|
1903 | |
|
|
1904 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1905 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1906 | } |
|
|
1907 | else |
|
|
1908 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1909 | |
|
|
1910 | EV_FREQUENT_CHECK; |
|
|
1911 | feed_reverse (EV_A_ (W)w); |
1616 | } |
1912 | } |
1617 | else if (w->interval) |
1913 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1618 | { |
|
|
1619 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1620 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1621 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1622 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1623 | } |
|
|
1624 | else |
|
|
1625 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1626 | |
1914 | |
1627 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1915 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1628 | } |
1916 | } |
1629 | } |
1917 | } |
1630 | |
1918 | |
|
|
1919 | /* simply recalculate all periodics */ |
|
|
1920 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1631 | static void noinline |
1921 | static void noinline |
1632 | periodics_reschedule (EV_P) |
1922 | periodics_reschedule (EV_P) |
1633 | { |
1923 | { |
1634 | int i; |
1924 | int i; |
1635 | |
1925 | |
1636 | /* adjust periodics after time jump */ |
1926 | /* adjust periodics after time jump */ |
1637 | for (i = 1; i <= periodiccnt; ++i) |
1927 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1638 | { |
1928 | { |
1639 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1929 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1640 | |
1930 | |
1641 | if (w->reschedule_cb) |
1931 | if (w->reschedule_cb) |
1642 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1932 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1643 | else if (w->interval) |
1933 | else if (w->interval) |
1644 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1934 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1935 | |
|
|
1936 | ANHE_at_cache (periodics [i]); |
|
|
1937 | } |
|
|
1938 | |
|
|
1939 | reheap (periodics, periodiccnt); |
|
|
1940 | } |
|
|
1941 | #endif |
|
|
1942 | |
|
|
1943 | /* adjust all timers by a given offset */ |
|
|
1944 | static void noinline |
|
|
1945 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
1946 | { |
|
|
1947 | int i; |
|
|
1948 | |
|
|
1949 | for (i = 0; i < timercnt; ++i) |
1645 | } |
1950 | { |
1646 | |
1951 | ANHE *he = timers + i + HEAP0; |
1647 | /* now rebuild the heap */ |
1952 | ANHE_w (*he)->at += adjust; |
1648 | for (i = periodiccnt >> 1; --i; ) |
1953 | ANHE_at_cache (*he); |
1649 | downheap (periodics, periodiccnt, i + HEAP0); |
1954 | } |
1650 | } |
1955 | } |
1651 | #endif |
|
|
1652 | |
1956 | |
1653 | void inline_speed |
1957 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
1958 | /* also detetc if there was a timejump, and act accordingly */ |
|
|
1959 | inline_speed void |
1654 | time_update (EV_P_ ev_tstamp max_block) |
1960 | time_update (EV_P_ ev_tstamp max_block) |
1655 | { |
1961 | { |
1656 | int i; |
|
|
1657 | |
|
|
1658 | #if EV_USE_MONOTONIC |
1962 | #if EV_USE_MONOTONIC |
1659 | if (expect_true (have_monotonic)) |
1963 | if (expect_true (have_monotonic)) |
1660 | { |
1964 | { |
|
|
1965 | int i; |
1661 | ev_tstamp odiff = rtmn_diff; |
1966 | ev_tstamp odiff = rtmn_diff; |
1662 | |
1967 | |
1663 | mn_now = get_clock (); |
1968 | mn_now = get_clock (); |
1664 | |
1969 | |
1665 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
1970 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1691 | ev_rt_now = ev_time (); |
1996 | ev_rt_now = ev_time (); |
1692 | mn_now = get_clock (); |
1997 | mn_now = get_clock (); |
1693 | now_floor = mn_now; |
1998 | now_floor = mn_now; |
1694 | } |
1999 | } |
1695 | |
2000 | |
|
|
2001 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2002 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1696 | # if EV_PERIODIC_ENABLE |
2003 | # if EV_PERIODIC_ENABLE |
1697 | periodics_reschedule (EV_A); |
2004 | periodics_reschedule (EV_A); |
1698 | # endif |
2005 | # endif |
1699 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1700 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1701 | } |
2006 | } |
1702 | else |
2007 | else |
1703 | #endif |
2008 | #endif |
1704 | { |
2009 | { |
1705 | ev_rt_now = ev_time (); |
2010 | ev_rt_now = ev_time (); |
1706 | |
2011 | |
1707 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2012 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1708 | { |
2013 | { |
|
|
2014 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2015 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1709 | #if EV_PERIODIC_ENABLE |
2016 | #if EV_PERIODIC_ENABLE |
1710 | periodics_reschedule (EV_A); |
2017 | periodics_reschedule (EV_A); |
1711 | #endif |
2018 | #endif |
1712 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1713 | for (i = 1; i <= timercnt; ++i) |
|
|
1714 | ev_at (timers [i]) += ev_rt_now - mn_now; |
|
|
1715 | } |
2019 | } |
1716 | |
2020 | |
1717 | mn_now = ev_rt_now; |
2021 | mn_now = ev_rt_now; |
1718 | } |
2022 | } |
1719 | } |
2023 | } |
1720 | |
2024 | |
1721 | void |
|
|
1722 | ev_ref (EV_P) |
|
|
1723 | { |
|
|
1724 | ++activecnt; |
|
|
1725 | } |
|
|
1726 | |
|
|
1727 | void |
|
|
1728 | ev_unref (EV_P) |
|
|
1729 | { |
|
|
1730 | --activecnt; |
|
|
1731 | } |
|
|
1732 | |
|
|
1733 | static int loop_done; |
2025 | static int loop_done; |
1734 | |
2026 | |
1735 | void |
2027 | void |
1736 | ev_loop (EV_P_ int flags) |
2028 | ev_loop (EV_P_ int flags) |
1737 | { |
2029 | { |
… | |
… | |
1739 | |
2031 | |
1740 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2032 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1741 | |
2033 | |
1742 | do |
2034 | do |
1743 | { |
2035 | { |
|
|
2036 | #if EV_VERIFY >= 2 |
|
|
2037 | ev_loop_verify (EV_A); |
|
|
2038 | #endif |
|
|
2039 | |
1744 | #ifndef _WIN32 |
2040 | #ifndef _WIN32 |
1745 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2041 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1746 | if (expect_false (getpid () != curpid)) |
2042 | if (expect_false (getpid () != curpid)) |
1747 | { |
2043 | { |
1748 | curpid = getpid (); |
2044 | curpid = getpid (); |
… | |
… | |
1765 | { |
2061 | { |
1766 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2062 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1767 | call_pending (EV_A); |
2063 | call_pending (EV_A); |
1768 | } |
2064 | } |
1769 | |
2065 | |
1770 | if (expect_false (!activecnt)) |
|
|
1771 | break; |
|
|
1772 | |
|
|
1773 | /* we might have forked, so reify kernel state if necessary */ |
2066 | /* we might have forked, so reify kernel state if necessary */ |
1774 | if (expect_false (postfork)) |
2067 | if (expect_false (postfork)) |
1775 | loop_fork (EV_A); |
2068 | loop_fork (EV_A); |
1776 | |
2069 | |
1777 | /* update fd-related kernel structures */ |
2070 | /* update fd-related kernel structures */ |
… | |
… | |
1782 | ev_tstamp waittime = 0.; |
2075 | ev_tstamp waittime = 0.; |
1783 | ev_tstamp sleeptime = 0.; |
2076 | ev_tstamp sleeptime = 0.; |
1784 | |
2077 | |
1785 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2078 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1786 | { |
2079 | { |
|
|
2080 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2081 | ev_tstamp prev_mn_now = mn_now; |
|
|
2082 | |
1787 | /* update time to cancel out callback processing overhead */ |
2083 | /* update time to cancel out callback processing overhead */ |
1788 | time_update (EV_A_ 1e100); |
2084 | time_update (EV_A_ 1e100); |
1789 | |
2085 | |
1790 | waittime = MAX_BLOCKTIME; |
2086 | waittime = MAX_BLOCKTIME; |
1791 | |
2087 | |
1792 | if (timercnt) |
2088 | if (timercnt) |
1793 | { |
2089 | { |
1794 | ev_tstamp to = ev_at (timers [HEAP0]) - mn_now + backend_fudge; |
2090 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1795 | if (waittime > to) waittime = to; |
2091 | if (waittime > to) waittime = to; |
1796 | } |
2092 | } |
1797 | |
2093 | |
1798 | #if EV_PERIODIC_ENABLE |
2094 | #if EV_PERIODIC_ENABLE |
1799 | if (periodiccnt) |
2095 | if (periodiccnt) |
1800 | { |
2096 | { |
1801 | ev_tstamp to = ev_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2097 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1802 | if (waittime > to) waittime = to; |
2098 | if (waittime > to) waittime = to; |
1803 | } |
2099 | } |
1804 | #endif |
2100 | #endif |
1805 | |
2101 | |
|
|
2102 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1806 | if (expect_false (waittime < timeout_blocktime)) |
2103 | if (expect_false (waittime < timeout_blocktime)) |
1807 | waittime = timeout_blocktime; |
2104 | waittime = timeout_blocktime; |
1808 | |
2105 | |
1809 | sleeptime = waittime - backend_fudge; |
2106 | /* extra check because io_blocktime is commonly 0 */ |
1810 | |
|
|
1811 | if (expect_true (sleeptime > io_blocktime)) |
2107 | if (expect_false (io_blocktime)) |
1812 | sleeptime = io_blocktime; |
|
|
1813 | |
|
|
1814 | if (sleeptime) |
|
|
1815 | { |
2108 | { |
|
|
2109 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2110 | |
|
|
2111 | if (sleeptime > waittime - backend_fudge) |
|
|
2112 | sleeptime = waittime - backend_fudge; |
|
|
2113 | |
|
|
2114 | if (expect_true (sleeptime > 0.)) |
|
|
2115 | { |
1816 | ev_sleep (sleeptime); |
2116 | ev_sleep (sleeptime); |
1817 | waittime -= sleeptime; |
2117 | waittime -= sleeptime; |
|
|
2118 | } |
1818 | } |
2119 | } |
1819 | } |
2120 | } |
1820 | |
2121 | |
1821 | ++loop_count; |
2122 | ++loop_count; |
1822 | backend_poll (EV_A_ waittime); |
2123 | backend_poll (EV_A_ waittime); |
… | |
… | |
1856 | ev_unloop (EV_P_ int how) |
2157 | ev_unloop (EV_P_ int how) |
1857 | { |
2158 | { |
1858 | loop_done = how; |
2159 | loop_done = how; |
1859 | } |
2160 | } |
1860 | |
2161 | |
|
|
2162 | void |
|
|
2163 | ev_ref (EV_P) |
|
|
2164 | { |
|
|
2165 | ++activecnt; |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | void |
|
|
2169 | ev_unref (EV_P) |
|
|
2170 | { |
|
|
2171 | --activecnt; |
|
|
2172 | } |
|
|
2173 | |
|
|
2174 | void |
|
|
2175 | ev_now_update (EV_P) |
|
|
2176 | { |
|
|
2177 | time_update (EV_A_ 1e100); |
|
|
2178 | } |
|
|
2179 | |
|
|
2180 | void |
|
|
2181 | ev_suspend (EV_P) |
|
|
2182 | { |
|
|
2183 | ev_now_update (EV_A); |
|
|
2184 | } |
|
|
2185 | |
|
|
2186 | void |
|
|
2187 | ev_resume (EV_P) |
|
|
2188 | { |
|
|
2189 | ev_tstamp mn_prev = mn_now; |
|
|
2190 | |
|
|
2191 | ev_now_update (EV_A); |
|
|
2192 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2193 | #if EV_PERIODIC_ENABLE |
|
|
2194 | /* TODO: really do this? */ |
|
|
2195 | periodics_reschedule (EV_A); |
|
|
2196 | #endif |
|
|
2197 | } |
|
|
2198 | |
1861 | /*****************************************************************************/ |
2199 | /*****************************************************************************/ |
|
|
2200 | /* singly-linked list management, used when the expected list length is short */ |
1862 | |
2201 | |
1863 | void inline_size |
2202 | inline_size void |
1864 | wlist_add (WL *head, WL elem) |
2203 | wlist_add (WL *head, WL elem) |
1865 | { |
2204 | { |
1866 | elem->next = *head; |
2205 | elem->next = *head; |
1867 | *head = elem; |
2206 | *head = elem; |
1868 | } |
2207 | } |
1869 | |
2208 | |
1870 | void inline_size |
2209 | inline_size void |
1871 | wlist_del (WL *head, WL elem) |
2210 | wlist_del (WL *head, WL elem) |
1872 | { |
2211 | { |
1873 | while (*head) |
2212 | while (*head) |
1874 | { |
2213 | { |
1875 | if (*head == elem) |
2214 | if (*head == elem) |
… | |
… | |
1880 | |
2219 | |
1881 | head = &(*head)->next; |
2220 | head = &(*head)->next; |
1882 | } |
2221 | } |
1883 | } |
2222 | } |
1884 | |
2223 | |
1885 | void inline_speed |
2224 | /* internal, faster, version of ev_clear_pending */ |
|
|
2225 | inline_speed void |
1886 | clear_pending (EV_P_ W w) |
2226 | clear_pending (EV_P_ W w) |
1887 | { |
2227 | { |
1888 | if (w->pending) |
2228 | if (w->pending) |
1889 | { |
2229 | { |
1890 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2230 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1891 | w->pending = 0; |
2231 | w->pending = 0; |
1892 | } |
2232 | } |
1893 | } |
2233 | } |
1894 | |
2234 | |
1895 | int |
2235 | int |
… | |
… | |
1899 | int pending = w_->pending; |
2239 | int pending = w_->pending; |
1900 | |
2240 | |
1901 | if (expect_true (pending)) |
2241 | if (expect_true (pending)) |
1902 | { |
2242 | { |
1903 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2243 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2244 | p->w = (W)&pending_w; |
1904 | w_->pending = 0; |
2245 | w_->pending = 0; |
1905 | p->w = 0; |
|
|
1906 | return p->events; |
2246 | return p->events; |
1907 | } |
2247 | } |
1908 | else |
2248 | else |
1909 | return 0; |
2249 | return 0; |
1910 | } |
2250 | } |
1911 | |
2251 | |
1912 | void inline_size |
2252 | inline_size void |
1913 | pri_adjust (EV_P_ W w) |
2253 | pri_adjust (EV_P_ W w) |
1914 | { |
2254 | { |
1915 | int pri = w->priority; |
2255 | int pri = w->priority; |
1916 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2256 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1917 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2257 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1918 | w->priority = pri; |
2258 | w->priority = pri; |
1919 | } |
2259 | } |
1920 | |
2260 | |
1921 | void inline_speed |
2261 | inline_speed void |
1922 | ev_start (EV_P_ W w, int active) |
2262 | ev_start (EV_P_ W w, int active) |
1923 | { |
2263 | { |
1924 | pri_adjust (EV_A_ w); |
2264 | pri_adjust (EV_A_ w); |
1925 | w->active = active; |
2265 | w->active = active; |
1926 | ev_ref (EV_A); |
2266 | ev_ref (EV_A); |
1927 | } |
2267 | } |
1928 | |
2268 | |
1929 | void inline_size |
2269 | inline_size void |
1930 | ev_stop (EV_P_ W w) |
2270 | ev_stop (EV_P_ W w) |
1931 | { |
2271 | { |
1932 | ev_unref (EV_A); |
2272 | ev_unref (EV_A); |
1933 | w->active = 0; |
2273 | w->active = 0; |
1934 | } |
2274 | } |
… | |
… | |
1941 | int fd = w->fd; |
2281 | int fd = w->fd; |
1942 | |
2282 | |
1943 | if (expect_false (ev_is_active (w))) |
2283 | if (expect_false (ev_is_active (w))) |
1944 | return; |
2284 | return; |
1945 | |
2285 | |
1946 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2286 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2287 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2288 | |
|
|
2289 | EV_FREQUENT_CHECK; |
1947 | |
2290 | |
1948 | ev_start (EV_A_ (W)w, 1); |
2291 | ev_start (EV_A_ (W)w, 1); |
1949 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2292 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1950 | wlist_add (&anfds[fd].head, (WL)w); |
2293 | wlist_add (&anfds[fd].head, (WL)w); |
1951 | |
2294 | |
1952 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2295 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
1953 | w->events &= ~EV_IOFDSET; |
2296 | w->events &= ~EV__IOFDSET; |
|
|
2297 | |
|
|
2298 | EV_FREQUENT_CHECK; |
1954 | } |
2299 | } |
1955 | |
2300 | |
1956 | void noinline |
2301 | void noinline |
1957 | ev_io_stop (EV_P_ ev_io *w) |
2302 | ev_io_stop (EV_P_ ev_io *w) |
1958 | { |
2303 | { |
1959 | clear_pending (EV_A_ (W)w); |
2304 | clear_pending (EV_A_ (W)w); |
1960 | if (expect_false (!ev_is_active (w))) |
2305 | if (expect_false (!ev_is_active (w))) |
1961 | return; |
2306 | return; |
1962 | |
2307 | |
1963 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2308 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2309 | |
|
|
2310 | EV_FREQUENT_CHECK; |
1964 | |
2311 | |
1965 | wlist_del (&anfds[w->fd].head, (WL)w); |
2312 | wlist_del (&anfds[w->fd].head, (WL)w); |
1966 | ev_stop (EV_A_ (W)w); |
2313 | ev_stop (EV_A_ (W)w); |
1967 | |
2314 | |
1968 | fd_change (EV_A_ w->fd, 1); |
2315 | fd_change (EV_A_ w->fd, 1); |
|
|
2316 | |
|
|
2317 | EV_FREQUENT_CHECK; |
1969 | } |
2318 | } |
1970 | |
2319 | |
1971 | void noinline |
2320 | void noinline |
1972 | ev_timer_start (EV_P_ ev_timer *w) |
2321 | ev_timer_start (EV_P_ ev_timer *w) |
1973 | { |
2322 | { |
1974 | if (expect_false (ev_is_active (w))) |
2323 | if (expect_false (ev_is_active (w))) |
1975 | return; |
2324 | return; |
1976 | |
2325 | |
1977 | ev_at (w) += mn_now; |
2326 | ev_at (w) += mn_now; |
1978 | |
2327 | |
1979 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2328 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1980 | |
2329 | |
|
|
2330 | EV_FREQUENT_CHECK; |
|
|
2331 | |
|
|
2332 | ++timercnt; |
1981 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
2333 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1982 | array_needsize (WT, timers, timermax, timercnt + HEAP0, EMPTY2); |
2334 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1983 | timers [ev_active (w)] = (WT)w; |
2335 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
2336 | ANHE_at_cache (timers [ev_active (w)]); |
1984 | upheap (timers, ev_active (w)); |
2337 | upheap (timers, ev_active (w)); |
1985 | |
2338 | |
|
|
2339 | EV_FREQUENT_CHECK; |
|
|
2340 | |
1986 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == w));*/ |
2341 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1987 | } |
2342 | } |
1988 | |
2343 | |
1989 | void noinline |
2344 | void noinline |
1990 | ev_timer_stop (EV_P_ ev_timer *w) |
2345 | ev_timer_stop (EV_P_ ev_timer *w) |
1991 | { |
2346 | { |
1992 | clear_pending (EV_A_ (W)w); |
2347 | clear_pending (EV_A_ (W)w); |
1993 | if (expect_false (!ev_is_active (w))) |
2348 | if (expect_false (!ev_is_active (w))) |
1994 | return; |
2349 | return; |
1995 | |
2350 | |
|
|
2351 | EV_FREQUENT_CHECK; |
|
|
2352 | |
1996 | { |
2353 | { |
1997 | int active = ev_active (w); |
2354 | int active = ev_active (w); |
1998 | |
2355 | |
1999 | assert (("internal timer heap corruption", timers [active] == (WT)w)); |
2356 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2000 | |
2357 | |
|
|
2358 | --timercnt; |
|
|
2359 | |
2001 | if (expect_true (active < timercnt + HEAP0 - 1)) |
2360 | if (expect_true (active < timercnt + HEAP0)) |
2002 | { |
2361 | { |
2003 | timers [active] = timers [timercnt + HEAP0 - 1]; |
2362 | timers [active] = timers [timercnt + HEAP0]; |
2004 | adjustheap (timers, timercnt, active); |
2363 | adjustheap (timers, timercnt, active); |
2005 | } |
2364 | } |
2006 | |
|
|
2007 | --timercnt; |
|
|
2008 | } |
2365 | } |
|
|
2366 | |
|
|
2367 | EV_FREQUENT_CHECK; |
2009 | |
2368 | |
2010 | ev_at (w) -= mn_now; |
2369 | ev_at (w) -= mn_now; |
2011 | |
2370 | |
2012 | ev_stop (EV_A_ (W)w); |
2371 | ev_stop (EV_A_ (W)w); |
2013 | } |
2372 | } |
2014 | |
2373 | |
2015 | void noinline |
2374 | void noinline |
2016 | ev_timer_again (EV_P_ ev_timer *w) |
2375 | ev_timer_again (EV_P_ ev_timer *w) |
2017 | { |
2376 | { |
|
|
2377 | EV_FREQUENT_CHECK; |
|
|
2378 | |
2018 | if (ev_is_active (w)) |
2379 | if (ev_is_active (w)) |
2019 | { |
2380 | { |
2020 | if (w->repeat) |
2381 | if (w->repeat) |
2021 | { |
2382 | { |
2022 | ev_at (w) = mn_now + w->repeat; |
2383 | ev_at (w) = mn_now + w->repeat; |
|
|
2384 | ANHE_at_cache (timers [ev_active (w)]); |
2023 | adjustheap (timers, timercnt, ev_active (w)); |
2385 | adjustheap (timers, timercnt, ev_active (w)); |
2024 | } |
2386 | } |
2025 | else |
2387 | else |
2026 | ev_timer_stop (EV_A_ w); |
2388 | ev_timer_stop (EV_A_ w); |
2027 | } |
2389 | } |
2028 | else if (w->repeat) |
2390 | else if (w->repeat) |
2029 | { |
2391 | { |
2030 | ev_at (w) = w->repeat; |
2392 | ev_at (w) = w->repeat; |
2031 | ev_timer_start (EV_A_ w); |
2393 | ev_timer_start (EV_A_ w); |
2032 | } |
2394 | } |
|
|
2395 | |
|
|
2396 | EV_FREQUENT_CHECK; |
2033 | } |
2397 | } |
2034 | |
2398 | |
2035 | #if EV_PERIODIC_ENABLE |
2399 | #if EV_PERIODIC_ENABLE |
2036 | void noinline |
2400 | void noinline |
2037 | ev_periodic_start (EV_P_ ev_periodic *w) |
2401 | ev_periodic_start (EV_P_ ev_periodic *w) |
… | |
… | |
2041 | |
2405 | |
2042 | if (w->reschedule_cb) |
2406 | if (w->reschedule_cb) |
2043 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2407 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2044 | else if (w->interval) |
2408 | else if (w->interval) |
2045 | { |
2409 | { |
2046 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2410 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2047 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2411 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2048 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2412 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2049 | } |
2413 | } |
2050 | else |
2414 | else |
2051 | ev_at (w) = w->offset; |
2415 | ev_at (w) = w->offset; |
2052 | |
2416 | |
|
|
2417 | EV_FREQUENT_CHECK; |
|
|
2418 | |
|
|
2419 | ++periodiccnt; |
2053 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
2420 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2054 | array_needsize (WT, periodics, periodicmax, periodiccnt + HEAP0, EMPTY2); |
2421 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
2055 | periodics [ev_active (w)] = (WT)w; |
2422 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
|
|
2423 | ANHE_at_cache (periodics [ev_active (w)]); |
2056 | upheap (periodics, ev_active (w)); |
2424 | upheap (periodics, ev_active (w)); |
2057 | |
2425 | |
|
|
2426 | EV_FREQUENT_CHECK; |
|
|
2427 | |
2058 | /*assert (("internal periodic heap corruption", periodics [ev_active (w)] == w));*/ |
2428 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2059 | } |
2429 | } |
2060 | |
2430 | |
2061 | void noinline |
2431 | void noinline |
2062 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2432 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2063 | { |
2433 | { |
2064 | clear_pending (EV_A_ (W)w); |
2434 | clear_pending (EV_A_ (W)w); |
2065 | if (expect_false (!ev_is_active (w))) |
2435 | if (expect_false (!ev_is_active (w))) |
2066 | return; |
2436 | return; |
2067 | |
2437 | |
|
|
2438 | EV_FREQUENT_CHECK; |
|
|
2439 | |
2068 | { |
2440 | { |
2069 | int active = ev_active (w); |
2441 | int active = ev_active (w); |
2070 | |
2442 | |
2071 | assert (("internal periodic heap corruption", periodics [active] == (WT)w)); |
2443 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2072 | |
2444 | |
|
|
2445 | --periodiccnt; |
|
|
2446 | |
2073 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
2447 | if (expect_true (active < periodiccnt + HEAP0)) |
2074 | { |
2448 | { |
2075 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
2449 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2076 | adjustheap (periodics, periodiccnt, active); |
2450 | adjustheap (periodics, periodiccnt, active); |
2077 | } |
2451 | } |
2078 | |
|
|
2079 | --periodiccnt; |
|
|
2080 | } |
2452 | } |
|
|
2453 | |
|
|
2454 | EV_FREQUENT_CHECK; |
2081 | |
2455 | |
2082 | ev_stop (EV_A_ (W)w); |
2456 | ev_stop (EV_A_ (W)w); |
2083 | } |
2457 | } |
2084 | |
2458 | |
2085 | void noinline |
2459 | void noinline |
… | |
… | |
2097 | |
2471 | |
2098 | void noinline |
2472 | void noinline |
2099 | ev_signal_start (EV_P_ ev_signal *w) |
2473 | ev_signal_start (EV_P_ ev_signal *w) |
2100 | { |
2474 | { |
2101 | #if EV_MULTIPLICITY |
2475 | #if EV_MULTIPLICITY |
2102 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2476 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2103 | #endif |
2477 | #endif |
2104 | if (expect_false (ev_is_active (w))) |
2478 | if (expect_false (ev_is_active (w))) |
2105 | return; |
2479 | return; |
2106 | |
2480 | |
2107 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2481 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2108 | |
2482 | |
2109 | evpipe_init (EV_A); |
2483 | evpipe_init (EV_A); |
|
|
2484 | |
|
|
2485 | EV_FREQUENT_CHECK; |
2110 | |
2486 | |
2111 | { |
2487 | { |
2112 | #ifndef _WIN32 |
2488 | #ifndef _WIN32 |
2113 | sigset_t full, prev; |
2489 | sigset_t full, prev; |
2114 | sigfillset (&full); |
2490 | sigfillset (&full); |
2115 | sigprocmask (SIG_SETMASK, &full, &prev); |
2491 | sigprocmask (SIG_SETMASK, &full, &prev); |
2116 | #endif |
2492 | #endif |
2117 | |
2493 | |
2118 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2494 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2119 | |
2495 | |
2120 | #ifndef _WIN32 |
2496 | #ifndef _WIN32 |
2121 | sigprocmask (SIG_SETMASK, &prev, 0); |
2497 | sigprocmask (SIG_SETMASK, &prev, 0); |
2122 | #endif |
2498 | #endif |
2123 | } |
2499 | } |
… | |
… | |
2135 | sigfillset (&sa.sa_mask); |
2511 | sigfillset (&sa.sa_mask); |
2136 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2512 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2137 | sigaction (w->signum, &sa, 0); |
2513 | sigaction (w->signum, &sa, 0); |
2138 | #endif |
2514 | #endif |
2139 | } |
2515 | } |
|
|
2516 | |
|
|
2517 | EV_FREQUENT_CHECK; |
2140 | } |
2518 | } |
2141 | |
2519 | |
2142 | void noinline |
2520 | void noinline |
2143 | ev_signal_stop (EV_P_ ev_signal *w) |
2521 | ev_signal_stop (EV_P_ ev_signal *w) |
2144 | { |
2522 | { |
2145 | clear_pending (EV_A_ (W)w); |
2523 | clear_pending (EV_A_ (W)w); |
2146 | if (expect_false (!ev_is_active (w))) |
2524 | if (expect_false (!ev_is_active (w))) |
2147 | return; |
2525 | return; |
2148 | |
2526 | |
|
|
2527 | EV_FREQUENT_CHECK; |
|
|
2528 | |
2149 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2529 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2150 | ev_stop (EV_A_ (W)w); |
2530 | ev_stop (EV_A_ (W)w); |
2151 | |
2531 | |
2152 | if (!signals [w->signum - 1].head) |
2532 | if (!signals [w->signum - 1].head) |
2153 | signal (w->signum, SIG_DFL); |
2533 | signal (w->signum, SIG_DFL); |
|
|
2534 | |
|
|
2535 | EV_FREQUENT_CHECK; |
2154 | } |
2536 | } |
2155 | |
2537 | |
2156 | void |
2538 | void |
2157 | ev_child_start (EV_P_ ev_child *w) |
2539 | ev_child_start (EV_P_ ev_child *w) |
2158 | { |
2540 | { |
2159 | #if EV_MULTIPLICITY |
2541 | #if EV_MULTIPLICITY |
2160 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2542 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2161 | #endif |
2543 | #endif |
2162 | if (expect_false (ev_is_active (w))) |
2544 | if (expect_false (ev_is_active (w))) |
2163 | return; |
2545 | return; |
2164 | |
2546 | |
|
|
2547 | EV_FREQUENT_CHECK; |
|
|
2548 | |
2165 | ev_start (EV_A_ (W)w, 1); |
2549 | ev_start (EV_A_ (W)w, 1); |
2166 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2550 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2551 | |
|
|
2552 | EV_FREQUENT_CHECK; |
2167 | } |
2553 | } |
2168 | |
2554 | |
2169 | void |
2555 | void |
2170 | ev_child_stop (EV_P_ ev_child *w) |
2556 | ev_child_stop (EV_P_ ev_child *w) |
2171 | { |
2557 | { |
2172 | clear_pending (EV_A_ (W)w); |
2558 | clear_pending (EV_A_ (W)w); |
2173 | if (expect_false (!ev_is_active (w))) |
2559 | if (expect_false (!ev_is_active (w))) |
2174 | return; |
2560 | return; |
2175 | |
2561 | |
|
|
2562 | EV_FREQUENT_CHECK; |
|
|
2563 | |
2176 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2564 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2177 | ev_stop (EV_A_ (W)w); |
2565 | ev_stop (EV_A_ (W)w); |
|
|
2566 | |
|
|
2567 | EV_FREQUENT_CHECK; |
2178 | } |
2568 | } |
2179 | |
2569 | |
2180 | #if EV_STAT_ENABLE |
2570 | #if EV_STAT_ENABLE |
2181 | |
2571 | |
2182 | # ifdef _WIN32 |
2572 | # ifdef _WIN32 |
2183 | # undef lstat |
2573 | # undef lstat |
2184 | # define lstat(a,b) _stati64 (a,b) |
2574 | # define lstat(a,b) _stati64 (a,b) |
2185 | # endif |
2575 | # endif |
2186 | |
2576 | |
2187 | #define DEF_STAT_INTERVAL 5.0074891 |
2577 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2578 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2188 | #define MIN_STAT_INTERVAL 0.1074891 |
2579 | #define MIN_STAT_INTERVAL 0.1074891 |
2189 | |
2580 | |
2190 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2581 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2191 | |
2582 | |
2192 | #if EV_USE_INOTIFY |
2583 | #if EV_USE_INOTIFY |
2193 | # define EV_INOTIFY_BUFSIZE 8192 |
2584 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
2197 | { |
2588 | { |
2198 | 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); |
2589 | 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); |
2199 | |
2590 | |
2200 | if (w->wd < 0) |
2591 | if (w->wd < 0) |
2201 | { |
2592 | { |
|
|
2593 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2202 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2594 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2203 | |
2595 | |
2204 | /* monitor some parent directory for speedup hints */ |
2596 | /* monitor some parent directory for speedup hints */ |
2205 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
2597 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2206 | /* but an efficiency issue only */ |
2598 | /* but an efficiency issue only */ |
2207 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2599 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2208 | { |
2600 | { |
2209 | char path [4096]; |
2601 | char path [4096]; |
2210 | strcpy (path, w->path); |
2602 | strcpy (path, w->path); |
… | |
… | |
2214 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2606 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2215 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2607 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2216 | |
2608 | |
2217 | char *pend = strrchr (path, '/'); |
2609 | char *pend = strrchr (path, '/'); |
2218 | |
2610 | |
2219 | if (!pend) |
2611 | if (!pend || pend == path) |
2220 | break; /* whoops, no '/', complain to your admin */ |
2612 | break; |
2221 | |
2613 | |
2222 | *pend = 0; |
2614 | *pend = 0; |
2223 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2615 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2224 | } |
2616 | } |
2225 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2617 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2226 | } |
2618 | } |
2227 | } |
2619 | } |
2228 | else |
|
|
2229 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2230 | |
2620 | |
2231 | if (w->wd >= 0) |
2621 | if (w->wd >= 0) |
|
|
2622 | { |
2232 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2623 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2624 | |
|
|
2625 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2626 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2627 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2628 | struct statfs sfs; |
|
|
2629 | |
|
|
2630 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2631 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2632 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2633 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2634 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2635 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2636 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2637 | return; |
|
|
2638 | |
|
|
2639 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2640 | ev_timer_again (EV_A_ &w->timer); |
|
|
2641 | } |
2233 | } |
2642 | } |
2234 | |
2643 | |
2235 | static void noinline |
2644 | static void noinline |
2236 | infy_del (EV_P_ ev_stat *w) |
2645 | infy_del (EV_P_ ev_stat *w) |
2237 | { |
2646 | { |
… | |
… | |
2251 | |
2660 | |
2252 | static void noinline |
2661 | static void noinline |
2253 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2662 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2254 | { |
2663 | { |
2255 | if (slot < 0) |
2664 | if (slot < 0) |
2256 | /* overflow, need to check for all hahs slots */ |
2665 | /* overflow, need to check for all hash slots */ |
2257 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2666 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2258 | infy_wd (EV_A_ slot, wd, ev); |
2667 | infy_wd (EV_A_ slot, wd, ev); |
2259 | else |
2668 | else |
2260 | { |
2669 | { |
2261 | WL w_; |
2670 | WL w_; |
… | |
… | |
2267 | |
2676 | |
2268 | if (w->wd == wd || wd == -1) |
2677 | if (w->wd == wd || wd == -1) |
2269 | { |
2678 | { |
2270 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2679 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2271 | { |
2680 | { |
|
|
2681 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2272 | w->wd = -1; |
2682 | w->wd = -1; |
2273 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2683 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2274 | } |
2684 | } |
2275 | |
2685 | |
2276 | stat_timer_cb (EV_A_ &w->timer, 0); |
2686 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2289 | |
2699 | |
2290 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2700 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2291 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2701 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2292 | } |
2702 | } |
2293 | |
2703 | |
2294 | void inline_size |
2704 | inline_size void |
|
|
2705 | check_2625 (EV_P) |
|
|
2706 | { |
|
|
2707 | /* kernels < 2.6.25 are borked |
|
|
2708 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2709 | */ |
|
|
2710 | struct utsname buf; |
|
|
2711 | int major, minor, micro; |
|
|
2712 | |
|
|
2713 | if (uname (&buf)) |
|
|
2714 | return; |
|
|
2715 | |
|
|
2716 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2717 | return; |
|
|
2718 | |
|
|
2719 | if (major < 2 |
|
|
2720 | || (major == 2 && minor < 6) |
|
|
2721 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2722 | return; |
|
|
2723 | |
|
|
2724 | fs_2625 = 1; |
|
|
2725 | } |
|
|
2726 | |
|
|
2727 | inline_size void |
2295 | infy_init (EV_P) |
2728 | infy_init (EV_P) |
2296 | { |
2729 | { |
2297 | if (fs_fd != -2) |
2730 | if (fs_fd != -2) |
2298 | return; |
2731 | return; |
|
|
2732 | |
|
|
2733 | fs_fd = -1; |
|
|
2734 | |
|
|
2735 | check_2625 (EV_A); |
2299 | |
2736 | |
2300 | fs_fd = inotify_init (); |
2737 | fs_fd = inotify_init (); |
2301 | |
2738 | |
2302 | if (fs_fd >= 0) |
2739 | if (fs_fd >= 0) |
2303 | { |
2740 | { |
… | |
… | |
2305 | ev_set_priority (&fs_w, EV_MAXPRI); |
2742 | ev_set_priority (&fs_w, EV_MAXPRI); |
2306 | ev_io_start (EV_A_ &fs_w); |
2743 | ev_io_start (EV_A_ &fs_w); |
2307 | } |
2744 | } |
2308 | } |
2745 | } |
2309 | |
2746 | |
2310 | void inline_size |
2747 | inline_size void |
2311 | infy_fork (EV_P) |
2748 | infy_fork (EV_P) |
2312 | { |
2749 | { |
2313 | int slot; |
2750 | int slot; |
2314 | |
2751 | |
2315 | if (fs_fd < 0) |
2752 | if (fs_fd < 0) |
… | |
… | |
2331 | w->wd = -1; |
2768 | w->wd = -1; |
2332 | |
2769 | |
2333 | if (fs_fd >= 0) |
2770 | if (fs_fd >= 0) |
2334 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2771 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2335 | else |
2772 | else |
2336 | ev_timer_start (EV_A_ &w->timer); |
2773 | ev_timer_again (EV_A_ &w->timer); |
2337 | } |
2774 | } |
2338 | |
|
|
2339 | } |
2775 | } |
2340 | } |
2776 | } |
2341 | |
2777 | |
|
|
2778 | #endif |
|
|
2779 | |
|
|
2780 | #ifdef _WIN32 |
|
|
2781 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2782 | #else |
|
|
2783 | # define EV_LSTAT(p,b) lstat (p, b) |
2342 | #endif |
2784 | #endif |
2343 | |
2785 | |
2344 | void |
2786 | void |
2345 | ev_stat_stat (EV_P_ ev_stat *w) |
2787 | ev_stat_stat (EV_P_ ev_stat *w) |
2346 | { |
2788 | { |
… | |
… | |
2373 | || w->prev.st_atime != w->attr.st_atime |
2815 | || w->prev.st_atime != w->attr.st_atime |
2374 | || w->prev.st_mtime != w->attr.st_mtime |
2816 | || w->prev.st_mtime != w->attr.st_mtime |
2375 | || w->prev.st_ctime != w->attr.st_ctime |
2817 | || w->prev.st_ctime != w->attr.st_ctime |
2376 | ) { |
2818 | ) { |
2377 | #if EV_USE_INOTIFY |
2819 | #if EV_USE_INOTIFY |
|
|
2820 | if (fs_fd >= 0) |
|
|
2821 | { |
2378 | infy_del (EV_A_ w); |
2822 | infy_del (EV_A_ w); |
2379 | infy_add (EV_A_ w); |
2823 | infy_add (EV_A_ w); |
2380 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2824 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2825 | } |
2381 | #endif |
2826 | #endif |
2382 | |
2827 | |
2383 | ev_feed_event (EV_A_ w, EV_STAT); |
2828 | ev_feed_event (EV_A_ w, EV_STAT); |
2384 | } |
2829 | } |
2385 | } |
2830 | } |
… | |
… | |
2388 | ev_stat_start (EV_P_ ev_stat *w) |
2833 | ev_stat_start (EV_P_ ev_stat *w) |
2389 | { |
2834 | { |
2390 | if (expect_false (ev_is_active (w))) |
2835 | if (expect_false (ev_is_active (w))) |
2391 | return; |
2836 | return; |
2392 | |
2837 | |
2393 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2394 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2395 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2396 | |
|
|
2397 | ev_stat_stat (EV_A_ w); |
2838 | ev_stat_stat (EV_A_ w); |
2398 | |
2839 | |
|
|
2840 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2399 | if (w->interval < MIN_STAT_INTERVAL) |
2841 | w->interval = MIN_STAT_INTERVAL; |
2400 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2401 | |
2842 | |
2402 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2843 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2403 | ev_set_priority (&w->timer, ev_priority (w)); |
2844 | ev_set_priority (&w->timer, ev_priority (w)); |
2404 | |
2845 | |
2405 | #if EV_USE_INOTIFY |
2846 | #if EV_USE_INOTIFY |
2406 | infy_init (EV_A); |
2847 | infy_init (EV_A); |
2407 | |
2848 | |
2408 | if (fs_fd >= 0) |
2849 | if (fs_fd >= 0) |
2409 | infy_add (EV_A_ w); |
2850 | infy_add (EV_A_ w); |
2410 | else |
2851 | else |
2411 | #endif |
2852 | #endif |
2412 | ev_timer_start (EV_A_ &w->timer); |
2853 | ev_timer_again (EV_A_ &w->timer); |
2413 | |
2854 | |
2414 | ev_start (EV_A_ (W)w, 1); |
2855 | ev_start (EV_A_ (W)w, 1); |
|
|
2856 | |
|
|
2857 | EV_FREQUENT_CHECK; |
2415 | } |
2858 | } |
2416 | |
2859 | |
2417 | void |
2860 | void |
2418 | ev_stat_stop (EV_P_ ev_stat *w) |
2861 | ev_stat_stop (EV_P_ ev_stat *w) |
2419 | { |
2862 | { |
2420 | clear_pending (EV_A_ (W)w); |
2863 | clear_pending (EV_A_ (W)w); |
2421 | if (expect_false (!ev_is_active (w))) |
2864 | if (expect_false (!ev_is_active (w))) |
2422 | return; |
2865 | return; |
2423 | |
2866 | |
|
|
2867 | EV_FREQUENT_CHECK; |
|
|
2868 | |
2424 | #if EV_USE_INOTIFY |
2869 | #if EV_USE_INOTIFY |
2425 | infy_del (EV_A_ w); |
2870 | infy_del (EV_A_ w); |
2426 | #endif |
2871 | #endif |
2427 | ev_timer_stop (EV_A_ &w->timer); |
2872 | ev_timer_stop (EV_A_ &w->timer); |
2428 | |
2873 | |
2429 | ev_stop (EV_A_ (W)w); |
2874 | ev_stop (EV_A_ (W)w); |
|
|
2875 | |
|
|
2876 | EV_FREQUENT_CHECK; |
2430 | } |
2877 | } |
2431 | #endif |
2878 | #endif |
2432 | |
2879 | |
2433 | #if EV_IDLE_ENABLE |
2880 | #if EV_IDLE_ENABLE |
2434 | void |
2881 | void |
… | |
… | |
2436 | { |
2883 | { |
2437 | if (expect_false (ev_is_active (w))) |
2884 | if (expect_false (ev_is_active (w))) |
2438 | return; |
2885 | return; |
2439 | |
2886 | |
2440 | pri_adjust (EV_A_ (W)w); |
2887 | pri_adjust (EV_A_ (W)w); |
|
|
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
2441 | |
2890 | |
2442 | { |
2891 | { |
2443 | int active = ++idlecnt [ABSPRI (w)]; |
2892 | int active = ++idlecnt [ABSPRI (w)]; |
2444 | |
2893 | |
2445 | ++idleall; |
2894 | ++idleall; |
2446 | ev_start (EV_A_ (W)w, active); |
2895 | ev_start (EV_A_ (W)w, active); |
2447 | |
2896 | |
2448 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2897 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2449 | idles [ABSPRI (w)][active - 1] = w; |
2898 | idles [ABSPRI (w)][active - 1] = w; |
2450 | } |
2899 | } |
|
|
2900 | |
|
|
2901 | EV_FREQUENT_CHECK; |
2451 | } |
2902 | } |
2452 | |
2903 | |
2453 | void |
2904 | void |
2454 | ev_idle_stop (EV_P_ ev_idle *w) |
2905 | ev_idle_stop (EV_P_ ev_idle *w) |
2455 | { |
2906 | { |
2456 | clear_pending (EV_A_ (W)w); |
2907 | clear_pending (EV_A_ (W)w); |
2457 | if (expect_false (!ev_is_active (w))) |
2908 | if (expect_false (!ev_is_active (w))) |
2458 | return; |
2909 | return; |
2459 | |
2910 | |
|
|
2911 | EV_FREQUENT_CHECK; |
|
|
2912 | |
2460 | { |
2913 | { |
2461 | int active = ev_active (w); |
2914 | int active = ev_active (w); |
2462 | |
2915 | |
2463 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2916 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2464 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2917 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2465 | |
2918 | |
2466 | ev_stop (EV_A_ (W)w); |
2919 | ev_stop (EV_A_ (W)w); |
2467 | --idleall; |
2920 | --idleall; |
2468 | } |
2921 | } |
|
|
2922 | |
|
|
2923 | EV_FREQUENT_CHECK; |
2469 | } |
2924 | } |
2470 | #endif |
2925 | #endif |
2471 | |
2926 | |
2472 | void |
2927 | void |
2473 | ev_prepare_start (EV_P_ ev_prepare *w) |
2928 | ev_prepare_start (EV_P_ ev_prepare *w) |
2474 | { |
2929 | { |
2475 | if (expect_false (ev_is_active (w))) |
2930 | if (expect_false (ev_is_active (w))) |
2476 | return; |
2931 | return; |
|
|
2932 | |
|
|
2933 | EV_FREQUENT_CHECK; |
2477 | |
2934 | |
2478 | ev_start (EV_A_ (W)w, ++preparecnt); |
2935 | ev_start (EV_A_ (W)w, ++preparecnt); |
2479 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2936 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2480 | prepares [preparecnt - 1] = w; |
2937 | prepares [preparecnt - 1] = w; |
|
|
2938 | |
|
|
2939 | EV_FREQUENT_CHECK; |
2481 | } |
2940 | } |
2482 | |
2941 | |
2483 | void |
2942 | void |
2484 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2943 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2485 | { |
2944 | { |
2486 | clear_pending (EV_A_ (W)w); |
2945 | clear_pending (EV_A_ (W)w); |
2487 | if (expect_false (!ev_is_active (w))) |
2946 | if (expect_false (!ev_is_active (w))) |
2488 | return; |
2947 | return; |
2489 | |
2948 | |
|
|
2949 | EV_FREQUENT_CHECK; |
|
|
2950 | |
2490 | { |
2951 | { |
2491 | int active = ev_active (w); |
2952 | int active = ev_active (w); |
2492 | |
2953 | |
2493 | prepares [active - 1] = prepares [--preparecnt]; |
2954 | prepares [active - 1] = prepares [--preparecnt]; |
2494 | ev_active (prepares [active - 1]) = active; |
2955 | ev_active (prepares [active - 1]) = active; |
2495 | } |
2956 | } |
2496 | |
2957 | |
2497 | ev_stop (EV_A_ (W)w); |
2958 | ev_stop (EV_A_ (W)w); |
|
|
2959 | |
|
|
2960 | EV_FREQUENT_CHECK; |
2498 | } |
2961 | } |
2499 | |
2962 | |
2500 | void |
2963 | void |
2501 | ev_check_start (EV_P_ ev_check *w) |
2964 | ev_check_start (EV_P_ ev_check *w) |
2502 | { |
2965 | { |
2503 | if (expect_false (ev_is_active (w))) |
2966 | if (expect_false (ev_is_active (w))) |
2504 | return; |
2967 | return; |
|
|
2968 | |
|
|
2969 | EV_FREQUENT_CHECK; |
2505 | |
2970 | |
2506 | ev_start (EV_A_ (W)w, ++checkcnt); |
2971 | ev_start (EV_A_ (W)w, ++checkcnt); |
2507 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2972 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2508 | checks [checkcnt - 1] = w; |
2973 | checks [checkcnt - 1] = w; |
|
|
2974 | |
|
|
2975 | EV_FREQUENT_CHECK; |
2509 | } |
2976 | } |
2510 | |
2977 | |
2511 | void |
2978 | void |
2512 | ev_check_stop (EV_P_ ev_check *w) |
2979 | ev_check_stop (EV_P_ ev_check *w) |
2513 | { |
2980 | { |
2514 | clear_pending (EV_A_ (W)w); |
2981 | clear_pending (EV_A_ (W)w); |
2515 | if (expect_false (!ev_is_active (w))) |
2982 | if (expect_false (!ev_is_active (w))) |
2516 | return; |
2983 | return; |
2517 | |
2984 | |
|
|
2985 | EV_FREQUENT_CHECK; |
|
|
2986 | |
2518 | { |
2987 | { |
2519 | int active = ev_active (w); |
2988 | int active = ev_active (w); |
2520 | |
2989 | |
2521 | checks [active - 1] = checks [--checkcnt]; |
2990 | checks [active - 1] = checks [--checkcnt]; |
2522 | ev_active (checks [active - 1]) = active; |
2991 | ev_active (checks [active - 1]) = active; |
2523 | } |
2992 | } |
2524 | |
2993 | |
2525 | ev_stop (EV_A_ (W)w); |
2994 | ev_stop (EV_A_ (W)w); |
|
|
2995 | |
|
|
2996 | EV_FREQUENT_CHECK; |
2526 | } |
2997 | } |
2527 | |
2998 | |
2528 | #if EV_EMBED_ENABLE |
2999 | #if EV_EMBED_ENABLE |
2529 | void noinline |
3000 | void noinline |
2530 | ev_embed_sweep (EV_P_ ev_embed *w) |
3001 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2557 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3028 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2558 | } |
3029 | } |
2559 | } |
3030 | } |
2560 | } |
3031 | } |
2561 | |
3032 | |
|
|
3033 | static void |
|
|
3034 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3035 | { |
|
|
3036 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3037 | |
|
|
3038 | ev_embed_stop (EV_A_ w); |
|
|
3039 | |
|
|
3040 | { |
|
|
3041 | struct ev_loop *loop = w->other; |
|
|
3042 | |
|
|
3043 | ev_loop_fork (EV_A); |
|
|
3044 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3045 | } |
|
|
3046 | |
|
|
3047 | ev_embed_start (EV_A_ w); |
|
|
3048 | } |
|
|
3049 | |
2562 | #if 0 |
3050 | #if 0 |
2563 | static void |
3051 | static void |
2564 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3052 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2565 | { |
3053 | { |
2566 | ev_idle_stop (EV_A_ idle); |
3054 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2573 | if (expect_false (ev_is_active (w))) |
3061 | if (expect_false (ev_is_active (w))) |
2574 | return; |
3062 | return; |
2575 | |
3063 | |
2576 | { |
3064 | { |
2577 | struct ev_loop *loop = w->other; |
3065 | struct ev_loop *loop = w->other; |
2578 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3066 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2579 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3067 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2580 | } |
3068 | } |
|
|
3069 | |
|
|
3070 | EV_FREQUENT_CHECK; |
2581 | |
3071 | |
2582 | ev_set_priority (&w->io, ev_priority (w)); |
3072 | ev_set_priority (&w->io, ev_priority (w)); |
2583 | ev_io_start (EV_A_ &w->io); |
3073 | ev_io_start (EV_A_ &w->io); |
2584 | |
3074 | |
2585 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3075 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2586 | ev_set_priority (&w->prepare, EV_MINPRI); |
3076 | ev_set_priority (&w->prepare, EV_MINPRI); |
2587 | ev_prepare_start (EV_A_ &w->prepare); |
3077 | ev_prepare_start (EV_A_ &w->prepare); |
2588 | |
3078 | |
|
|
3079 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3080 | ev_fork_start (EV_A_ &w->fork); |
|
|
3081 | |
2589 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3082 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2590 | |
3083 | |
2591 | ev_start (EV_A_ (W)w, 1); |
3084 | ev_start (EV_A_ (W)w, 1); |
|
|
3085 | |
|
|
3086 | EV_FREQUENT_CHECK; |
2592 | } |
3087 | } |
2593 | |
3088 | |
2594 | void |
3089 | void |
2595 | ev_embed_stop (EV_P_ ev_embed *w) |
3090 | ev_embed_stop (EV_P_ ev_embed *w) |
2596 | { |
3091 | { |
2597 | clear_pending (EV_A_ (W)w); |
3092 | clear_pending (EV_A_ (W)w); |
2598 | if (expect_false (!ev_is_active (w))) |
3093 | if (expect_false (!ev_is_active (w))) |
2599 | return; |
3094 | return; |
2600 | |
3095 | |
|
|
3096 | EV_FREQUENT_CHECK; |
|
|
3097 | |
2601 | ev_io_stop (EV_A_ &w->io); |
3098 | ev_io_stop (EV_A_ &w->io); |
2602 | ev_prepare_stop (EV_A_ &w->prepare); |
3099 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3100 | ev_fork_stop (EV_A_ &w->fork); |
2603 | |
3101 | |
2604 | ev_stop (EV_A_ (W)w); |
3102 | EV_FREQUENT_CHECK; |
2605 | } |
3103 | } |
2606 | #endif |
3104 | #endif |
2607 | |
3105 | |
2608 | #if EV_FORK_ENABLE |
3106 | #if EV_FORK_ENABLE |
2609 | void |
3107 | void |
2610 | ev_fork_start (EV_P_ ev_fork *w) |
3108 | ev_fork_start (EV_P_ ev_fork *w) |
2611 | { |
3109 | { |
2612 | if (expect_false (ev_is_active (w))) |
3110 | if (expect_false (ev_is_active (w))) |
2613 | return; |
3111 | return; |
|
|
3112 | |
|
|
3113 | EV_FREQUENT_CHECK; |
2614 | |
3114 | |
2615 | ev_start (EV_A_ (W)w, ++forkcnt); |
3115 | ev_start (EV_A_ (W)w, ++forkcnt); |
2616 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3116 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2617 | forks [forkcnt - 1] = w; |
3117 | forks [forkcnt - 1] = w; |
|
|
3118 | |
|
|
3119 | EV_FREQUENT_CHECK; |
2618 | } |
3120 | } |
2619 | |
3121 | |
2620 | void |
3122 | void |
2621 | ev_fork_stop (EV_P_ ev_fork *w) |
3123 | ev_fork_stop (EV_P_ ev_fork *w) |
2622 | { |
3124 | { |
2623 | clear_pending (EV_A_ (W)w); |
3125 | clear_pending (EV_A_ (W)w); |
2624 | if (expect_false (!ev_is_active (w))) |
3126 | if (expect_false (!ev_is_active (w))) |
2625 | return; |
3127 | return; |
2626 | |
3128 | |
|
|
3129 | EV_FREQUENT_CHECK; |
|
|
3130 | |
2627 | { |
3131 | { |
2628 | int active = ev_active (w); |
3132 | int active = ev_active (w); |
2629 | |
3133 | |
2630 | forks [active - 1] = forks [--forkcnt]; |
3134 | forks [active - 1] = forks [--forkcnt]; |
2631 | ev_active (forks [active - 1]) = active; |
3135 | ev_active (forks [active - 1]) = active; |
2632 | } |
3136 | } |
2633 | |
3137 | |
2634 | ev_stop (EV_A_ (W)w); |
3138 | ev_stop (EV_A_ (W)w); |
|
|
3139 | |
|
|
3140 | EV_FREQUENT_CHECK; |
2635 | } |
3141 | } |
2636 | #endif |
3142 | #endif |
2637 | |
3143 | |
2638 | #if EV_ASYNC_ENABLE |
3144 | #if EV_ASYNC_ENABLE |
2639 | void |
3145 | void |
… | |
… | |
2641 | { |
3147 | { |
2642 | if (expect_false (ev_is_active (w))) |
3148 | if (expect_false (ev_is_active (w))) |
2643 | return; |
3149 | return; |
2644 | |
3150 | |
2645 | evpipe_init (EV_A); |
3151 | evpipe_init (EV_A); |
|
|
3152 | |
|
|
3153 | EV_FREQUENT_CHECK; |
2646 | |
3154 | |
2647 | ev_start (EV_A_ (W)w, ++asynccnt); |
3155 | ev_start (EV_A_ (W)w, ++asynccnt); |
2648 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3156 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2649 | asyncs [asynccnt - 1] = w; |
3157 | asyncs [asynccnt - 1] = w; |
|
|
3158 | |
|
|
3159 | EV_FREQUENT_CHECK; |
2650 | } |
3160 | } |
2651 | |
3161 | |
2652 | void |
3162 | void |
2653 | ev_async_stop (EV_P_ ev_async *w) |
3163 | ev_async_stop (EV_P_ ev_async *w) |
2654 | { |
3164 | { |
2655 | clear_pending (EV_A_ (W)w); |
3165 | clear_pending (EV_A_ (W)w); |
2656 | if (expect_false (!ev_is_active (w))) |
3166 | if (expect_false (!ev_is_active (w))) |
2657 | return; |
3167 | return; |
2658 | |
3168 | |
|
|
3169 | EV_FREQUENT_CHECK; |
|
|
3170 | |
2659 | { |
3171 | { |
2660 | int active = ev_active (w); |
3172 | int active = ev_active (w); |
2661 | |
3173 | |
2662 | asyncs [active - 1] = asyncs [--asynccnt]; |
3174 | asyncs [active - 1] = asyncs [--asynccnt]; |
2663 | ev_active (asyncs [active - 1]) = active; |
3175 | ev_active (asyncs [active - 1]) = active; |
2664 | } |
3176 | } |
2665 | |
3177 | |
2666 | ev_stop (EV_A_ (W)w); |
3178 | ev_stop (EV_A_ (W)w); |
|
|
3179 | |
|
|
3180 | EV_FREQUENT_CHECK; |
2667 | } |
3181 | } |
2668 | |
3182 | |
2669 | void |
3183 | void |
2670 | ev_async_send (EV_P_ ev_async *w) |
3184 | ev_async_send (EV_P_ ev_async *w) |
2671 | { |
3185 | { |
… | |
… | |
2688 | once_cb (EV_P_ struct ev_once *once, int revents) |
3202 | once_cb (EV_P_ struct ev_once *once, int revents) |
2689 | { |
3203 | { |
2690 | void (*cb)(int revents, void *arg) = once->cb; |
3204 | void (*cb)(int revents, void *arg) = once->cb; |
2691 | void *arg = once->arg; |
3205 | void *arg = once->arg; |
2692 | |
3206 | |
2693 | ev_io_stop (EV_A_ &once->io); |
3207 | ev_io_stop (EV_A_ &once->io); |
2694 | ev_timer_stop (EV_A_ &once->to); |
3208 | ev_timer_stop (EV_A_ &once->to); |
2695 | ev_free (once); |
3209 | ev_free (once); |
2696 | |
3210 | |
2697 | cb (revents, arg); |
3211 | cb (revents, arg); |
2698 | } |
3212 | } |
2699 | |
3213 | |
2700 | static void |
3214 | static void |
2701 | once_cb_io (EV_P_ ev_io *w, int revents) |
3215 | once_cb_io (EV_P_ ev_io *w, int revents) |
2702 | { |
3216 | { |
2703 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3217 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3218 | |
|
|
3219 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2704 | } |
3220 | } |
2705 | |
3221 | |
2706 | static void |
3222 | static void |
2707 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3223 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2708 | { |
3224 | { |
2709 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3225 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3226 | |
|
|
3227 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2710 | } |
3228 | } |
2711 | |
3229 | |
2712 | void |
3230 | void |
2713 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3231 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2714 | { |
3232 | { |
… | |
… | |
2736 | ev_timer_set (&once->to, timeout, 0.); |
3254 | ev_timer_set (&once->to, timeout, 0.); |
2737 | ev_timer_start (EV_A_ &once->to); |
3255 | ev_timer_start (EV_A_ &once->to); |
2738 | } |
3256 | } |
2739 | } |
3257 | } |
2740 | |
3258 | |
|
|
3259 | /*****************************************************************************/ |
|
|
3260 | |
|
|
3261 | #if EV_WALK_ENABLE |
|
|
3262 | void |
|
|
3263 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3264 | { |
|
|
3265 | int i, j; |
|
|
3266 | ev_watcher_list *wl, *wn; |
|
|
3267 | |
|
|
3268 | if (types & (EV_IO | EV_EMBED)) |
|
|
3269 | for (i = 0; i < anfdmax; ++i) |
|
|
3270 | for (wl = anfds [i].head; wl; ) |
|
|
3271 | { |
|
|
3272 | wn = wl->next; |
|
|
3273 | |
|
|
3274 | #if EV_EMBED_ENABLE |
|
|
3275 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3276 | { |
|
|
3277 | if (types & EV_EMBED) |
|
|
3278 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3279 | } |
|
|
3280 | else |
|
|
3281 | #endif |
|
|
3282 | #if EV_USE_INOTIFY |
|
|
3283 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3284 | ; |
|
|
3285 | else |
|
|
3286 | #endif |
|
|
3287 | if ((ev_io *)wl != &pipe_w) |
|
|
3288 | if (types & EV_IO) |
|
|
3289 | cb (EV_A_ EV_IO, wl); |
|
|
3290 | |
|
|
3291 | wl = wn; |
|
|
3292 | } |
|
|
3293 | |
|
|
3294 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3295 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3296 | #if EV_STAT_ENABLE |
|
|
3297 | /*TODO: timer is not always active*/ |
|
|
3298 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3299 | { |
|
|
3300 | if (types & EV_STAT) |
|
|
3301 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3302 | } |
|
|
3303 | else |
|
|
3304 | #endif |
|
|
3305 | if (types & EV_TIMER) |
|
|
3306 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3307 | |
|
|
3308 | #if EV_PERIODIC_ENABLE |
|
|
3309 | if (types & EV_PERIODIC) |
|
|
3310 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3311 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3312 | #endif |
|
|
3313 | |
|
|
3314 | #if EV_IDLE_ENABLE |
|
|
3315 | if (types & EV_IDLE) |
|
|
3316 | for (j = NUMPRI; i--; ) |
|
|
3317 | for (i = idlecnt [j]; i--; ) |
|
|
3318 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3319 | #endif |
|
|
3320 | |
|
|
3321 | #if EV_FORK_ENABLE |
|
|
3322 | if (types & EV_FORK) |
|
|
3323 | for (i = forkcnt; i--; ) |
|
|
3324 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3325 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3326 | #endif |
|
|
3327 | |
|
|
3328 | #if EV_ASYNC_ENABLE |
|
|
3329 | if (types & EV_ASYNC) |
|
|
3330 | for (i = asynccnt; i--; ) |
|
|
3331 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3332 | #endif |
|
|
3333 | |
|
|
3334 | if (types & EV_PREPARE) |
|
|
3335 | for (i = preparecnt; i--; ) |
|
|
3336 | #if EV_EMBED_ENABLE |
|
|
3337 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3338 | #endif |
|
|
3339 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3340 | |
|
|
3341 | if (types & EV_CHECK) |
|
|
3342 | for (i = checkcnt; i--; ) |
|
|
3343 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3344 | |
|
|
3345 | if (types & EV_SIGNAL) |
|
|
3346 | for (i = 0; i < signalmax; ++i) |
|
|
3347 | for (wl = signals [i].head; wl; ) |
|
|
3348 | { |
|
|
3349 | wn = wl->next; |
|
|
3350 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3351 | wl = wn; |
|
|
3352 | } |
|
|
3353 | |
|
|
3354 | if (types & EV_CHILD) |
|
|
3355 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3356 | for (wl = childs [i]; wl; ) |
|
|
3357 | { |
|
|
3358 | wn = wl->next; |
|
|
3359 | cb (EV_A_ EV_CHILD, wl); |
|
|
3360 | wl = wn; |
|
|
3361 | } |
|
|
3362 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3363 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3364 | } |
|
|
3365 | #endif |
|
|
3366 | |
2741 | #if EV_MULTIPLICITY |
3367 | #if EV_MULTIPLICITY |
2742 | #include "ev_wrap.h" |
3368 | #include "ev_wrap.h" |
2743 | #endif |
3369 | #endif |
2744 | |
3370 | |
2745 | #ifdef __cplusplus |
3371 | #ifdef __cplusplus |