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Comparing libev/ev.c (file contents):
Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC vs.
Revision 1.198 by root, Sun Dec 23 04:45:51 2007 UTC

… …
32#ifdef __cplusplus 32#ifdef __cplusplus
33extern "C" { 33extern "C" {
34#endif 34#endif
35 35
36#ifndef EV_STANDALONE 36#ifndef EV_STANDALONE
37# ifdef EV_CONFIG_H
38# include EV_CONFIG_H
39# else
37# include "config.h" 40# include "config.h"
41# endif
38 42
39# if HAVE_CLOCK_GETTIME 43# if HAVE_CLOCK_GETTIME
40# ifndef EV_USE_MONOTONIC 44# ifndef EV_USE_MONOTONIC
41# define EV_USE_MONOTONIC 1 45# define EV_USE_MONOTONIC 1
42# endif 46# endif
… …
47# ifndef EV_USE_MONOTONIC 51# ifndef EV_USE_MONOTONIC
48# define EV_USE_MONOTONIC 0 52# define EV_USE_MONOTONIC 0
49# endif 53# endif
50# ifndef EV_USE_REALTIME 54# ifndef EV_USE_REALTIME
51# define EV_USE_REALTIME 0 55# define EV_USE_REALTIME 0
56# endif
57# endif
58
59# ifndef EV_USE_NANOSLEEP
60# if HAVE_NANOSLEEP
61# define EV_USE_NANOSLEEP 1
62# else
63# define EV_USE_NANOSLEEP 0
52# endif 64# endif
53# endif 65# endif
54 66
55# ifndef EV_USE_SELECT 67# ifndef EV_USE_SELECT
56# if HAVE_SELECT && HAVE_SYS_SELECT_H 68# if HAVE_SELECT && HAVE_SYS_SELECT_H
… …
90# else 102# else
91# define EV_USE_PORT 0 103# define EV_USE_PORT 0
92# endif 104# endif
93# endif 105# endif
94 106
107# ifndef EV_USE_INOTIFY
108# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
109# define EV_USE_INOTIFY 1
110# else
111# define EV_USE_INOTIFY 0
112# endif
113# endif
114
95#endif 115#endif
96 116
97#include <math.h> 117#include <math.h>
98#include <stdlib.h> 118#include <stdlib.h>
99#include <fcntl.h> 119#include <fcntl.h>
… …
106#include <sys/types.h> 126#include <sys/types.h>
107#include <time.h> 127#include <time.h>
108 128
109#include <signal.h> 129#include <signal.h>
110 130
131#ifdef EV_H
132# include EV_H
133#else
134# include "ev.h"
135#endif
136
111#ifndef _WIN32 137#ifndef _WIN32
112# include <unistd.h>
113# include <sys/time.h> 138# include <sys/time.h>
114# include <sys/wait.h> 139# include <sys/wait.h>
140# include <unistd.h>
115#else 141#else
116# define WIN32_LEAN_AND_MEAN 142# define WIN32_LEAN_AND_MEAN
117# include <windows.h> 143# include <windows.h>
118# ifndef EV_SELECT_IS_WINSOCKET 144# ifndef EV_SELECT_IS_WINSOCKET
119# define EV_SELECT_IS_WINSOCKET 1 145# define EV_SELECT_IS_WINSOCKET 1
… …
128 154
129#ifndef EV_USE_REALTIME 155#ifndef EV_USE_REALTIME
130# define EV_USE_REALTIME 0 156# define EV_USE_REALTIME 0
131#endif 157#endif
132 158
159#ifndef EV_USE_NANOSLEEP
160# define EV_USE_NANOSLEEP 0
161#endif
162
133#ifndef EV_USE_SELECT 163#ifndef EV_USE_SELECT
134# define EV_USE_SELECT 1 164# define EV_USE_SELECT 1
135#endif 165#endif
136 166
137#ifndef EV_USE_POLL 167#ifndef EV_USE_POLL
… …
152 182
153#ifndef EV_USE_PORT 183#ifndef EV_USE_PORT
154# define EV_USE_PORT 0 184# define EV_USE_PORT 0
155#endif 185#endif
156 186
187#ifndef EV_USE_INOTIFY
188# define EV_USE_INOTIFY 0
189#endif
190
191#ifndef EV_PID_HASHSIZE
192# if EV_MINIMAL
193# define EV_PID_HASHSIZE 1
194# else
195# define EV_PID_HASHSIZE 16
196# endif
197#endif
198
199#ifndef EV_INOTIFY_HASHSIZE
200# if EV_MINIMAL
201# define EV_INOTIFY_HASHSIZE 1
202# else
203# define EV_INOTIFY_HASHSIZE 16
204# endif
205#endif
206
157/**/ 207/**/
158
159/* darwin simply cannot be helped */
160#ifdef __APPLE__
161# undef EV_USE_POLL
162# undef EV_USE_KQUEUE
163#endif
164 208
165#ifndef CLOCK_MONOTONIC 209#ifndef CLOCK_MONOTONIC
166# undef EV_USE_MONOTONIC 210# undef EV_USE_MONOTONIC
167# define EV_USE_MONOTONIC 0 211# define EV_USE_MONOTONIC 0
168#endif 212#endif
… …
170#ifndef CLOCK_REALTIME 214#ifndef CLOCK_REALTIME
171# undef EV_USE_REALTIME 215# undef EV_USE_REALTIME
172# define EV_USE_REALTIME 0 216# define EV_USE_REALTIME 0
173#endif 217#endif
174 218
219#if !EV_STAT_ENABLE
220# undef EV_USE_INOTIFY
221# define EV_USE_INOTIFY 0
222#endif
223
224#if !EV_USE_NANOSLEEP
225# ifndef _WIN32
226# include <sys/select.h>
227# endif
228#endif
229
230#if EV_USE_INOTIFY
231# include <sys/inotify.h>
232#endif
233
175#if EV_SELECT_IS_WINSOCKET 234#if EV_SELECT_IS_WINSOCKET
176# include <winsock.h> 235# include <winsock.h>
177#endif 236#endif
178 237
179/**/ 238/**/
180 239
240/*
241 * This is used to avoid floating point rounding problems.
242 * It is added to ev_rt_now when scheduling periodics
243 * to ensure progress, time-wise, even when rounding
244 * errors are against us.
245 * This value is good at least till the year 4000.
246 * Better solutions welcome.
247 */
248#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
249
181#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 250#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
182#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 251#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
183#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
184/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ 252/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
185 253
186#ifdef EV_H
187# include EV_H
188#else
189# include "ev.h"
190#endif
191
192#if __GNUC__ >= 3 254#if __GNUC__ >= 4
193# define expect(expr,value) __builtin_expect ((expr),(value)) 255# define expect(expr,value) __builtin_expect ((expr),(value))
194# define inline static inline 256# define noinline __attribute__ ((noinline))
195#else 257#else
196# define expect(expr,value) (expr) 258# define expect(expr,value) (expr)
197# define inline static 259# define noinline
260# if __STDC_VERSION__ < 199901L
261# define inline
262# endif
198#endif 263#endif
199 264
200#define expect_false(expr) expect ((expr) != 0, 0) 265#define expect_false(expr) expect ((expr) != 0, 0)
201#define expect_true(expr) expect ((expr) != 0, 1) 266#define expect_true(expr) expect ((expr) != 0, 1)
267#define inline_size static inline
268
269#if EV_MINIMAL
270# define inline_speed static noinline
271#else
272# define inline_speed static inline
273#endif
202 274
203#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 275#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
204#define ABSPRI(w) ((w)->priority - EV_MINPRI) 276#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
205 277
206#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 278#define EMPTY /* required for microsofts broken pseudo-c compiler */
207#define EMPTY2(a,b) /* used to suppress some warnings */ 279#define EMPTY2(a,b) /* used to suppress some warnings */
208 280
209typedef struct ev_watcher *W; 281typedef ev_watcher *W;
210typedef struct ev_watcher_list *WL; 282typedef ev_watcher_list *WL;
211typedef struct ev_watcher_time *WT; 283typedef ev_watcher_time *WT;
212 284
285#if EV_USE_MONOTONIC
286/* sig_atomic_t is used to avoid per-thread variables or locking but still */
287/* giving it a reasonably high chance of working on typical architetcures */
213static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 288static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
289#endif
214 290
215#ifdef _WIN32 291#ifdef _WIN32
216# include "ev_win32.c" 292# include "ev_win32.c"
217#endif 293#endif
218 294
219/*****************************************************************************/ 295/*****************************************************************************/
220 296
221static void (*syserr_cb)(const char *msg); 297static void (*syserr_cb)(const char *msg);
222 298
299void
223void ev_set_syserr_cb (void (*cb)(const char *msg)) 300ev_set_syserr_cb (void (*cb)(const char *msg))
224{ 301{
225 syserr_cb = cb; 302 syserr_cb = cb;
226} 303}
227 304
228static void 305static void noinline
229syserr (const char *msg) 306syserr (const char *msg)
230{ 307{
231 if (!msg) 308 if (!msg)
232 msg = "(libev) system error"; 309 msg = "(libev) system error";
233 310
… …
240 } 317 }
241} 318}
242 319
243static void *(*alloc)(void *ptr, long size); 320static void *(*alloc)(void *ptr, long size);
244 321
322void
245void ev_set_allocator (void *(*cb)(void *ptr, long size)) 323ev_set_allocator (void *(*cb)(void *ptr, long size))
246{ 324{
247 alloc = cb; 325 alloc = cb;
248} 326}
249 327
250static void * 328inline_speed void *
251ev_realloc (void *ptr, long size) 329ev_realloc (void *ptr, long size)
252{ 330{
253 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 331 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
254 332
255 if (!ptr && size) 333 if (!ptr && size)
… …
279typedef struct 357typedef struct
280{ 358{
281 W w; 359 W w;
282 int events; 360 int events;
283} ANPENDING; 361} ANPENDING;
362
363#if EV_USE_INOTIFY
364typedef struct
365{
366 WL head;
367} ANFS;
368#endif
284 369
285#if EV_MULTIPLICITY 370#if EV_MULTIPLICITY
286 371
287 struct ev_loop 372 struct ev_loop
288 { 373 {
… …
322 gettimeofday (&tv, 0); 407 gettimeofday (&tv, 0);
323 return tv.tv_sec + tv.tv_usec * 1e-6; 408 return tv.tv_sec + tv.tv_usec * 1e-6;
324#endif 409#endif
325} 410}
326 411
327inline ev_tstamp 412ev_tstamp inline_size
328get_clock (void) 413get_clock (void)
329{ 414{
330#if EV_USE_MONOTONIC 415#if EV_USE_MONOTONIC
331 if (expect_true (have_monotonic)) 416 if (expect_true (have_monotonic))
332 { 417 {
… …
345{ 430{
346 return ev_rt_now; 431 return ev_rt_now;
347} 432}
348#endif 433#endif
349 434
350#define array_roundsize(type,n) (((n) | 4) & ~3) 435void
436ev_sleep (ev_tstamp delay)
437{
438 if (delay > 0.)
439 {
440#if EV_USE_NANOSLEEP
441 struct timespec ts;
442
443 ts.tv_sec = (time_t)delay;
444 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
445
446 nanosleep (&ts, 0);
447#elif defined(_WIN32)
448 Sleep (delay * 1e3);
449#else
450 struct timeval tv;
451
452 tv.tv_sec = (time_t)delay;
453 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
454
455 select (0, 0, 0, 0, &tv);
456#endif
457 }
458}
459
460/*****************************************************************************/
461
462int inline_size
463array_nextsize (int elem, int cur, int cnt)
464{
465 int ncur = cur + 1;
466
467 do
468 ncur <<= 1;
469 while (cnt > ncur);
470
471 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
472 if (elem * ncur > 4096)
473 {
474 ncur *= elem;
475 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
476 ncur = ncur - sizeof (void *) * 4;
477 ncur /= elem;
478 }
479
480 return ncur;
481}
482
483static noinline void *
484array_realloc (int elem, void *base, int *cur, int cnt)
485{
486 *cur = array_nextsize (elem, *cur, cnt);
487 return ev_realloc (base, elem * *cur);
488}
351 489
352#define array_needsize(type,base,cur,cnt,init) \ 490#define array_needsize(type,base,cur,cnt,init) \
353 if (expect_false ((cnt) > cur)) \ 491 if (expect_false ((cnt) > (cur))) \
354 { \ 492 { \
355 int newcnt = cur; \ 493 int ocur_ = (cur); \
356 do \ 494 (base) = (type *)array_realloc \
357 { \ 495 (sizeof (type), (base), &(cur), (cnt)); \
358 newcnt = array_roundsize (type, newcnt << 1); \ 496 init ((base) + (ocur_), (cur) - ocur_); \
359 } \
360 while ((cnt) > newcnt); \
361 \
362 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
363 init (base + cur, newcnt - cur); \
364 cur = newcnt; \
365 } 497 }
366 498
499#if 0
367#define array_slim(type,stem) \ 500#define array_slim(type,stem) \
368 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 501 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
369 { \ 502 { \
370 stem ## max = array_roundsize (stem ## cnt >> 1); \ 503 stem ## max = array_roundsize (stem ## cnt >> 1); \
371 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 504 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
372 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 505 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
373 } 506 }
507#endif
374 508
375#define array_free(stem, idx) \ 509#define array_free(stem, idx) \
376 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 510 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
377 511
378/*****************************************************************************/ 512/*****************************************************************************/
379 513
380static void 514void noinline
515ev_feed_event (EV_P_ void *w, int revents)
516{
517 W w_ = (W)w;
518 int pri = ABSPRI (w_);
519
520 if (expect_false (w_->pending))
521 pendings [pri][w_->pending - 1].events |= revents;
522 else
523 {
524 w_->pending = ++pendingcnt [pri];
525 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
526 pendings [pri][w_->pending - 1].w = w_;
527 pendings [pri][w_->pending - 1].events = revents;
528 }
529}
530
531void inline_speed
532queue_events (EV_P_ W *events, int eventcnt, int type)
533{
534 int i;
535
536 for (i = 0; i < eventcnt; ++i)
537 ev_feed_event (EV_A_ events [i], type);
538}
539
540/*****************************************************************************/
541
542void inline_size
381anfds_init (ANFD *base, int count) 543anfds_init (ANFD *base, int count)
382{ 544{
383 while (count--) 545 while (count--)
384 { 546 {
385 base->head = 0; 547 base->head = 0;
… …
388 550
389 ++base; 551 ++base;
390 } 552 }
391} 553}
392 554
393void 555void inline_speed
394ev_feed_event (EV_P_ void *w, int revents)
395{
396 W w_ = (W)w;
397
398 if (expect_false (w_->pending))
399 {
400 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
401 return;
402 }
403
404 w_->pending = ++pendingcnt [ABSPRI (w_)];
405 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
406 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
407 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
408}
409
410static void
411queue_events (EV_P_ W *events, int eventcnt, int type)
412{
413 int i;
414
415 for (i = 0; i < eventcnt; ++i)
416 ev_feed_event (EV_A_ events [i], type);
417}
418
419inline void
420fd_event (EV_P_ int fd, int revents) 556fd_event (EV_P_ int fd, int revents)
421{ 557{
422 ANFD *anfd = anfds + fd; 558 ANFD *anfd = anfds + fd;
423 struct ev_io *w; 559 ev_io *w;
424 560
425 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 561 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
426 { 562 {
427 int ev = w->events & revents; 563 int ev = w->events & revents;
428 564
429 if (ev) 565 if (ev)
430 ev_feed_event (EV_A_ (W)w, ev); 566 ev_feed_event (EV_A_ (W)w, ev);
… …
432} 568}
433 569
434void 570void
435ev_feed_fd_event (EV_P_ int fd, int revents) 571ev_feed_fd_event (EV_P_ int fd, int revents)
436{ 572{
573 if (fd >= 0 && fd < anfdmax)
437 fd_event (EV_A_ fd, revents); 574 fd_event (EV_A_ fd, revents);
438} 575}
439 576
440/*****************************************************************************/ 577void inline_size
441
442inline void
443fd_reify (EV_P) 578fd_reify (EV_P)
444{ 579{
445 int i; 580 int i;
446 581
447 for (i = 0; i < fdchangecnt; ++i) 582 for (i = 0; i < fdchangecnt; ++i)
448 { 583 {
449 int fd = fdchanges [i]; 584 int fd = fdchanges [i];
450 ANFD *anfd = anfds + fd; 585 ANFD *anfd = anfds + fd;
451 struct ev_io *w; 586 ev_io *w;
452 587
453 int events = 0; 588 unsigned char events = 0;
454 589
455 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 590 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
456 events |= w->events; 591 events |= (unsigned char)w->events;
457 592
458#if EV_SELECT_IS_WINSOCKET 593#if EV_SELECT_IS_WINSOCKET
459 if (events) 594 if (events)
460 { 595 {
461 unsigned long argp; 596 unsigned long argp;
462 anfd->handle = _get_osfhandle (fd); 597 anfd->handle = _get_osfhandle (fd);
463 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 598 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
464 } 599 }
465#endif 600#endif
466 601
602 {
603 unsigned char o_events = anfd->events;
604 unsigned char o_reify = anfd->reify;
605
467 anfd->reify = 0; 606 anfd->reify = 0;
468
469 method_modify (EV_A_ fd, anfd->events, events);
470 anfd->events = events; 607 anfd->events = events;
608
609 if (o_events != events || o_reify & EV_IOFDSET)
610 backend_modify (EV_A_ fd, o_events, events);
611 }
471 } 612 }
472 613
473 fdchangecnt = 0; 614 fdchangecnt = 0;
474} 615}
475 616
476static void 617void inline_size
477fd_change (EV_P_ int fd) 618fd_change (EV_P_ int fd, int flags)
478{ 619{
479 if (expect_false (anfds [fd].reify)) 620 unsigned char reify = anfds [fd].reify;
480 return;
481
482 anfds [fd].reify = 1; 621 anfds [fd].reify |= flags;
483 622
623 if (expect_true (!reify))
624 {
484 ++fdchangecnt; 625 ++fdchangecnt;
485 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 626 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
486 fdchanges [fdchangecnt - 1] = fd; 627 fdchanges [fdchangecnt - 1] = fd;
628 }
487} 629}
488 630
489static void 631void inline_speed
490fd_kill (EV_P_ int fd) 632fd_kill (EV_P_ int fd)
491{ 633{
492 struct ev_io *w; 634 ev_io *w;
493 635
494 while ((w = (struct ev_io *)anfds [fd].head)) 636 while ((w = (ev_io *)anfds [fd].head))
495 { 637 {
496 ev_io_stop (EV_A_ w); 638 ev_io_stop (EV_A_ w);
497 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 639 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
498 } 640 }
499} 641}
500 642
501inline int 643int inline_size
502fd_valid (int fd) 644fd_valid (int fd)
503{ 645{
504#ifdef _WIN32 646#ifdef _WIN32
505 return _get_osfhandle (fd) != -1; 647 return _get_osfhandle (fd) != -1;
506#else 648#else
507 return fcntl (fd, F_GETFD) != -1; 649 return fcntl (fd, F_GETFD) != -1;
508#endif 650#endif
509} 651}
510 652
511/* called on EBADF to verify fds */ 653/* called on EBADF to verify fds */
512static void 654static void noinline
513fd_ebadf (EV_P) 655fd_ebadf (EV_P)
514{ 656{
515 int fd; 657 int fd;
516 658
517 for (fd = 0; fd < anfdmax; ++fd) 659 for (fd = 0; fd < anfdmax; ++fd)
… …
519 if (!fd_valid (fd) == -1 && errno == EBADF) 661 if (!fd_valid (fd) == -1 && errno == EBADF)
520 fd_kill (EV_A_ fd); 662 fd_kill (EV_A_ fd);
521} 663}
522 664
523/* called on ENOMEM in select/poll to kill some fds and retry */ 665/* called on ENOMEM in select/poll to kill some fds and retry */
524static void 666static void noinline
525fd_enomem (EV_P) 667fd_enomem (EV_P)
526{ 668{
527 int fd; 669 int fd;
528 670
529 for (fd = anfdmax; fd--; ) 671 for (fd = anfdmax; fd--; )
… …
532 fd_kill (EV_A_ fd); 674 fd_kill (EV_A_ fd);
533 return; 675 return;
534 } 676 }
535} 677}
536 678
537/* usually called after fork if method needs to re-arm all fds from scratch */ 679/* usually called after fork if backend needs to re-arm all fds from scratch */
538static void 680static void noinline
539fd_rearm_all (EV_P) 681fd_rearm_all (EV_P)
540{ 682{
541 int fd; 683 int fd;
542 684
543 /* this should be highly optimised to not do anything but set a flag */
544 for (fd = 0; fd < anfdmax; ++fd) 685 for (fd = 0; fd < anfdmax; ++fd)
545 if (anfds [fd].events) 686 if (anfds [fd].events)
546 { 687 {
547 anfds [fd].events = 0; 688 anfds [fd].events = 0;
548 fd_change (EV_A_ fd); 689 fd_change (EV_A_ fd, EV_IOFDSET | 1);
549 } 690 }
550} 691}
551 692
552/*****************************************************************************/ 693/*****************************************************************************/
553 694
554static void 695void inline_speed
555upheap (WT *heap, int k) 696upheap (WT *heap, int k)
556{ 697{
557 WT w = heap [k]; 698 WT w = heap [k];
558 699
559 while (k && heap [k >> 1]->at > w->at) 700 while (k)
560 { 701 {
702 int p = (k - 1) >> 1;
703
704 if (heap [p]->at <= w->at)
705 break;
706
561 heap [k] = heap [k >> 1]; 707 heap [k] = heap [p];
562 ((W)heap [k])->active = k + 1; 708 ((W)heap [k])->active = k + 1;
563 k >>= 1; 709 k = p;
564 } 710 }
565 711
566 heap [k] = w; 712 heap [k] = w;
567 ((W)heap [k])->active = k + 1; 713 ((W)heap [k])->active = k + 1;
568
569} 714}
570 715
571static void 716void inline_speed
572downheap (WT *heap, int N, int k) 717downheap (WT *heap, int N, int k)
573{ 718{
574 WT w = heap [k]; 719 WT w = heap [k];
575 720
576 while (k < (N >> 1)) 721 for (;;)
577 { 722 {
578 int j = k << 1; 723 int c = (k << 1) + 1;
579 724
580 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 725 if (c >= N)
581 ++j;
582
583 if (w->at <= heap [j]->at)
584 break; 726 break;
585 727
728 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
729 ? 1 : 0;
730
731 if (w->at <= heap [c]->at)
732 break;
733
586 heap [k] = heap [j]; 734 heap [k] = heap [c];
587 ((W)heap [k])->active = k + 1; 735 ((W)heap [k])->active = k + 1;
736
588 k = j; 737 k = c;
589 } 738 }
590 739
591 heap [k] = w; 740 heap [k] = w;
592 ((W)heap [k])->active = k + 1; 741 ((W)heap [k])->active = k + 1;
593} 742}
594 743
595inline void 744void inline_size
596adjustheap (WT *heap, int N, int k) 745adjustheap (WT *heap, int N, int k)
597{ 746{
598 upheap (heap, k); 747 upheap (heap, k);
599 downheap (heap, N, k); 748 downheap (heap, N, k);
600} 749}
… …
610static ANSIG *signals; 759static ANSIG *signals;
611static int signalmax; 760static int signalmax;
612 761
613static int sigpipe [2]; 762static int sigpipe [2];
614static sig_atomic_t volatile gotsig; 763static sig_atomic_t volatile gotsig;
615static struct ev_io sigev; 764static ev_io sigev;
616 765
617static void 766void inline_size
618signals_init (ANSIG *base, int count) 767signals_init (ANSIG *base, int count)
619{ 768{
620 while (count--) 769 while (count--)
621 { 770 {
622 base->head = 0; 771 base->head = 0;
… …
642 write (sigpipe [1], &signum, 1); 791 write (sigpipe [1], &signum, 1);
643 errno = old_errno; 792 errno = old_errno;
644 } 793 }
645} 794}
646 795
647void 796void noinline
648ev_feed_signal_event (EV_P_ int signum) 797ev_feed_signal_event (EV_P_ int signum)
649{ 798{
650 WL w; 799 WL w;
651 800
652#if EV_MULTIPLICITY 801#if EV_MULTIPLICITY
… …
663 for (w = signals [signum].head; w; w = w->next) 812 for (w = signals [signum].head; w; w = w->next)
664 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 813 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
665} 814}
666 815
667static void 816static void
668sigcb (EV_P_ struct ev_io *iow, int revents) 817sigcb (EV_P_ ev_io *iow, int revents)
669{ 818{
670 int signum; 819 int signum;
671 820
672 read (sigpipe [0], &revents, 1); 821 read (sigpipe [0], &revents, 1);
673 gotsig = 0; 822 gotsig = 0;
… …
675 for (signum = signalmax; signum--; ) 824 for (signum = signalmax; signum--; )
676 if (signals [signum].gotsig) 825 if (signals [signum].gotsig)
677 ev_feed_signal_event (EV_A_ signum + 1); 826 ev_feed_signal_event (EV_A_ signum + 1);
678} 827}
679 828
680static void 829void inline_speed
681fd_intern (int fd) 830fd_intern (int fd)
682{ 831{
683#ifdef _WIN32 832#ifdef _WIN32
684 int arg = 1; 833 int arg = 1;
685 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 834 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
687 fcntl (fd, F_SETFD, FD_CLOEXEC); 836 fcntl (fd, F_SETFD, FD_CLOEXEC);
688 fcntl (fd, F_SETFL, O_NONBLOCK); 837 fcntl (fd, F_SETFL, O_NONBLOCK);
689#endif 838#endif
690} 839}
691 840
692static void 841static void noinline
693siginit (EV_P) 842siginit (EV_P)
694{ 843{
695 fd_intern (sigpipe [0]); 844 fd_intern (sigpipe [0]);
696 fd_intern (sigpipe [1]); 845 fd_intern (sigpipe [1]);
697 846
… …
700 ev_unref (EV_A); /* child watcher should not keep loop alive */ 849 ev_unref (EV_A); /* child watcher should not keep loop alive */
701} 850}
702 851
703/*****************************************************************************/ 852/*****************************************************************************/
704 853
705static struct ev_child *childs [PID_HASHSIZE]; 854static WL childs [EV_PID_HASHSIZE];
706 855
707#ifndef _WIN32 856#ifndef _WIN32
708 857
709static struct ev_signal childev; 858static ev_signal childev;
859
860void inline_speed
861child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
862{
863 ev_child *w;
864
865 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
866 if (w->pid == pid || !w->pid)
867 {
868 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
869 w->rpid = pid;
870 w->rstatus = status;
871 ev_feed_event (EV_A_ (W)w, EV_CHILD);
872 }
873}
710 874
711#ifndef WCONTINUED 875#ifndef WCONTINUED
712# define WCONTINUED 0 876# define WCONTINUED 0
713#endif 877#endif
714 878
715static void 879static void
716child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
717{
718 struct ev_child *w;
719
720 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
721 if (w->pid == pid || !w->pid)
722 {
723 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
724 w->rpid = pid;
725 w->rstatus = status;
726 ev_feed_event (EV_A_ (W)w, EV_CHILD);
727 }
728}
729
730static void
731childcb (EV_P_ struct ev_signal *sw, int revents) 880childcb (EV_P_ ev_signal *sw, int revents)
732{ 881{
733 int pid, status; 882 int pid, status;
734 883
884 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
735 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 885 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
736 { 886 if (!WCONTINUED
887 || errno != EINVAL
888 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
889 return;
890
737 /* make sure we are called again until all childs have been reaped */ 891 /* make sure we are called again until all childs have been reaped */
892 /* we need to do it this way so that the callback gets called before we continue */
738 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 893 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
739 894
740 child_reap (EV_A_ sw, pid, pid, status); 895 child_reap (EV_A_ sw, pid, pid, status);
896 if (EV_PID_HASHSIZE > 1)
741 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 897 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
742 }
743} 898}
744 899
745#endif 900#endif
746 901
747/*****************************************************************************/ 902/*****************************************************************************/
… …
773{ 928{
774 return EV_VERSION_MINOR; 929 return EV_VERSION_MINOR;
775} 930}
776 931
777/* return true if we are running with elevated privileges and should ignore env variables */ 932/* return true if we are running with elevated privileges and should ignore env variables */
778static int 933int inline_size
779enable_secure (void) 934enable_secure (void)
780{ 935{
781#ifdef _WIN32 936#ifdef _WIN32
782 return 0; 937 return 0;
783#else 938#else
… …
785 || getgid () != getegid (); 940 || getgid () != getegid ();
786#endif 941#endif
787} 942}
788 943
789unsigned int 944unsigned int
790ev_method (EV_P) 945ev_supported_backends (void)
791{ 946{
792 return method; 947 unsigned int flags = 0;
793}
794 948
795static void 949 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
950 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
951 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
952 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
953 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
954
955 return flags;
956}
957
958unsigned int
959ev_recommended_backends (void)
960{
961 unsigned int flags = ev_supported_backends ();
962
963#ifndef __NetBSD__
964 /* kqueue is borked on everything but netbsd apparently */
965 /* it usually doesn't work correctly on anything but sockets and pipes */
966 flags &= ~EVBACKEND_KQUEUE;
967#endif
968#ifdef __APPLE__
969 // flags &= ~EVBACKEND_KQUEUE; for documentation
970 flags &= ~EVBACKEND_POLL;
971#endif
972
973 return flags;
974}
975
976unsigned int
977ev_embeddable_backends (void)
978{
979 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
980
981 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
982 /* please fix it and tell me how to detect the fix */
983 flags &= ~EVBACKEND_EPOLL;
984
985 return flags;
986}
987
988unsigned int
989ev_backend (EV_P)
990{
991 return backend;
992}
993
994unsigned int
995ev_loop_count (EV_P)
996{
997 return loop_count;
998}
999
1000void
1001ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1002{
1003 io_blocktime = interval;
1004}
1005
1006void
1007ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1008{
1009 timeout_blocktime = interval;
1010}
1011
1012static void noinline
796loop_init (EV_P_ unsigned int flags) 1013loop_init (EV_P_ unsigned int flags)
797{ 1014{
798 if (!method) 1015 if (!backend)
799 { 1016 {
800#if EV_USE_MONOTONIC 1017#if EV_USE_MONOTONIC
801 { 1018 {
802 struct timespec ts; 1019 struct timespec ts;
803 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1020 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
808 ev_rt_now = ev_time (); 1025 ev_rt_now = ev_time ();
809 mn_now = get_clock (); 1026 mn_now = get_clock ();
810 now_floor = mn_now; 1027 now_floor = mn_now;
811 rtmn_diff = ev_rt_now - mn_now; 1028 rtmn_diff = ev_rt_now - mn_now;
812 1029
813 if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) 1030 io_blocktime = 0.;
1031 timeout_blocktime = 0.;
1032
1033 /* pid check not overridable via env */
1034#ifndef _WIN32
1035 if (flags & EVFLAG_FORKCHECK)
1036 curpid = getpid ();
1037#endif
1038
1039 if (!(flags & EVFLAG_NOENV)
1040 && !enable_secure ()
1041 && getenv ("LIBEV_FLAGS"))
814 flags = atoi (getenv ("LIBEV_FLAGS")); 1042 flags = atoi (getenv ("LIBEV_FLAGS"));
815 1043
816 if (!(flags & 0x0000ffff)) 1044 if (!(flags & 0x0000ffffUL))
817 flags |= 0x0000ffff; 1045 flags |= ev_recommended_backends ();
818 1046
819 method = 0; 1047 backend = 0;
1048 backend_fd = -1;
1049#if EV_USE_INOTIFY
1050 fs_fd = -2;
1051#endif
1052
820#if EV_USE_PORT 1053#if EV_USE_PORT
821 if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); 1054 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
822#endif 1055#endif
823#if EV_USE_KQUEUE 1056#if EV_USE_KQUEUE
824 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 1057 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
825#endif 1058#endif
826#if EV_USE_EPOLL 1059#if EV_USE_EPOLL
827 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 1060 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
828#endif 1061#endif
829#if EV_USE_POLL 1062#if EV_USE_POLL
830 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 1063 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
831#endif 1064#endif
832#if EV_USE_SELECT 1065#if EV_USE_SELECT
833 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 1066 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
834#endif 1067#endif
835 1068
836 ev_init (&sigev, sigcb); 1069 ev_init (&sigev, sigcb);
837 ev_set_priority (&sigev, EV_MAXPRI); 1070 ev_set_priority (&sigev, EV_MAXPRI);
838 } 1071 }
839} 1072}
840 1073
841static void 1074static void noinline
842loop_destroy (EV_P) 1075loop_destroy (EV_P)
843{ 1076{
844 int i; 1077 int i;
845 1078
1079#if EV_USE_INOTIFY
1080 if (fs_fd >= 0)
1081 close (fs_fd);
1082#endif
1083
1084 if (backend_fd >= 0)
1085 close (backend_fd);
1086
846#if EV_USE_PORT 1087#if EV_USE_PORT
847 if (method == EVMETHOD_PORT ) port_destroy (EV_A); 1088 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
848#endif 1089#endif
849#if EV_USE_KQUEUE 1090#if EV_USE_KQUEUE
850 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1091 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
851#endif 1092#endif
852#if EV_USE_EPOLL 1093#if EV_USE_EPOLL
853 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1094 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
854#endif 1095#endif
855#if EV_USE_POLL 1096#if EV_USE_POLL
856 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1097 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
857#endif 1098#endif
858#if EV_USE_SELECT 1099#if EV_USE_SELECT
859 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1100 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
860#endif 1101#endif
861 1102
862 for (i = NUMPRI; i--; ) 1103 for (i = NUMPRI; i--; )
1104 {
863 array_free (pending, [i]); 1105 array_free (pending, [i]);
1106#if EV_IDLE_ENABLE
1107 array_free (idle, [i]);
1108#endif
1109 }
1110
1111 ev_free (anfds); anfdmax = 0;
864 1112
865 /* have to use the microsoft-never-gets-it-right macro */ 1113 /* have to use the microsoft-never-gets-it-right macro */
866 array_free (fdchange, EMPTY0); 1114 array_free (fdchange, EMPTY);
867 array_free (timer, EMPTY0); 1115 array_free (timer, EMPTY);
868#if EV_PERIODICS 1116#if EV_PERIODIC_ENABLE
869 array_free (periodic, EMPTY0); 1117 array_free (periodic, EMPTY);
870#endif 1118#endif
1119#if EV_FORK_ENABLE
871 array_free (idle, EMPTY0); 1120 array_free (fork, EMPTY);
1121#endif
872 array_free (prepare, EMPTY0); 1122 array_free (prepare, EMPTY);
873 array_free (check, EMPTY0); 1123 array_free (check, EMPTY);
874 1124
875 method = 0; 1125 backend = 0;
876} 1126}
877 1127
878static void 1128void inline_size infy_fork (EV_P);
1129
1130void inline_size
879loop_fork (EV_P) 1131loop_fork (EV_P)
880{ 1132{
881#if EV_USE_PORT 1133#if EV_USE_PORT
882 if (method == EVMETHOD_PORT ) port_fork (EV_A); 1134 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
883#endif 1135#endif
884#if EV_USE_KQUEUE 1136#if EV_USE_KQUEUE
885 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1137 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
886#endif 1138#endif
887#if EV_USE_EPOLL 1139#if EV_USE_EPOLL
888 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1140 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
1141#endif
1142#if EV_USE_INOTIFY
1143 infy_fork (EV_A);
889#endif 1144#endif
890 1145
891 if (ev_is_active (&sigev)) 1146 if (ev_is_active (&sigev))
892 { 1147 {
893 /* default loop */ 1148 /* default loop */
… …
914 1169
915 memset (loop, 0, sizeof (struct ev_loop)); 1170 memset (loop, 0, sizeof (struct ev_loop));
916 1171
917 loop_init (EV_A_ flags); 1172 loop_init (EV_A_ flags);
918 1173
919 if (ev_method (EV_A)) 1174 if (ev_backend (EV_A))
920 return loop; 1175 return loop;
921 1176
922 return 0; 1177 return 0;
923} 1178}
924 1179
… …
957 ev_default_loop_ptr = 1; 1212 ev_default_loop_ptr = 1;
958#endif 1213#endif
959 1214
960 loop_init (EV_A_ flags); 1215 loop_init (EV_A_ flags);
961 1216
962 if (ev_method (EV_A)) 1217 if (ev_backend (EV_A))
963 { 1218 {
964 siginit (EV_A); 1219 siginit (EV_A);
965 1220
966#ifndef _WIN32 1221#ifndef _WIN32
967 ev_signal_init (&childev, childcb, SIGCHLD); 1222 ev_signal_init (&childev, childcb, SIGCHLD);
… …
1003{ 1258{
1004#if EV_MULTIPLICITY 1259#if EV_MULTIPLICITY
1005 struct ev_loop *loop = ev_default_loop_ptr; 1260 struct ev_loop *loop = ev_default_loop_ptr;
1006#endif 1261#endif
1007 1262
1008 if (method) 1263 if (backend)
1009 postfork = 1; 1264 postfork = 1;
1010} 1265}
1011 1266
1012/*****************************************************************************/ 1267/*****************************************************************************/
1013 1268
1014static int 1269void
1015any_pending (EV_P) 1270ev_invoke (EV_P_ void *w, int revents)
1016{ 1271{
1017 int pri; 1272 EV_CB_INVOKE ((W)w, revents);
1018
1019 for (pri = NUMPRI; pri--; )
1020 if (pendingcnt [pri])
1021 return 1;
1022
1023 return 0;
1024} 1273}
1025 1274
1026inline void 1275void inline_speed
1027call_pending (EV_P) 1276call_pending (EV_P)
1028{ 1277{
1029 int pri; 1278 int pri;
1030 1279
1031 for (pri = NUMPRI; pri--; ) 1280 for (pri = NUMPRI; pri--; )
… …
1033 { 1282 {
1034 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1283 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1035 1284
1036 if (expect_true (p->w)) 1285 if (expect_true (p->w))
1037 { 1286 {
1287 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1288
1038 p->w->pending = 0; 1289 p->w->pending = 0;
1039 EV_CB_INVOKE (p->w, p->events); 1290 EV_CB_INVOKE (p->w, p->events);
1040 } 1291 }
1041 } 1292 }
1042} 1293}
1043 1294
1044inline void 1295void inline_size
1045timers_reify (EV_P) 1296timers_reify (EV_P)
1046{ 1297{
1047 while (timercnt && ((WT)timers [0])->at <= mn_now) 1298 while (timercnt && ((WT)timers [0])->at <= mn_now)
1048 { 1299 {
1049 struct ev_timer *w = timers [0]; 1300 ev_timer *w = (ev_timer *)timers [0];
1050 1301
1051 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1302 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1052 1303
1053 /* first reschedule or stop timer */ 1304 /* first reschedule or stop timer */
1054 if (w->repeat) 1305 if (w->repeat)
1055 { 1306 {
1056 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1307 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1057 1308
1058 ((WT)w)->at += w->repeat; 1309 ((WT)w)->at += w->repeat;
1059 if (((WT)w)->at < mn_now) 1310 if (((WT)w)->at < mn_now)
1060 ((WT)w)->at = mn_now; 1311 ((WT)w)->at = mn_now;
1061 1312
1062 downheap ((WT *)timers, timercnt, 0); 1313 downheap (timers, timercnt, 0);
1063 } 1314 }
1064 else 1315 else
1065 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1316 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1066 1317
1067 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1318 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1068 } 1319 }
1069} 1320}
1070 1321
1071#if EV_PERIODICS 1322#if EV_PERIODIC_ENABLE
1072inline void 1323void inline_size
1073periodics_reify (EV_P) 1324periodics_reify (EV_P)
1074{ 1325{
1075 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1326 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1076 { 1327 {
1077 struct ev_periodic *w = periodics [0]; 1328 ev_periodic *w = (ev_periodic *)periodics [0];
1078 1329
1079 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1330 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1080 1331
1081 /* first reschedule or stop timer */ 1332 /* first reschedule or stop timer */
1082 if (w->reschedule_cb) 1333 if (w->reschedule_cb)
1083 { 1334 {
1084 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1335 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1085 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1336 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1086 downheap ((WT *)periodics, periodiccnt, 0); 1337 downheap (periodics, periodiccnt, 0);
1087 } 1338 }
1088 else if (w->interval) 1339 else if (w->interval)
1089 { 1340 {
1090 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1341 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1342 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1091 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1343 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1092 downheap ((WT *)periodics, periodiccnt, 0); 1344 downheap (periodics, periodiccnt, 0);
1093 } 1345 }
1094 else 1346 else
1095 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1347 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1096 1348
1097 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1349 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1098 } 1350 }
1099} 1351}
1100 1352
1101static void 1353static void noinline
1102periodics_reschedule (EV_P) 1354periodics_reschedule (EV_P)
1103{ 1355{
1104 int i; 1356 int i;
1105 1357
1106 /* adjust periodics after time jump */ 1358 /* adjust periodics after time jump */
1107 for (i = 0; i < periodiccnt; ++i) 1359 for (i = 0; i < periodiccnt; ++i)
1108 { 1360 {
1109 struct ev_periodic *w = periodics [i]; 1361 ev_periodic *w = (ev_periodic *)periodics [i];
1110 1362
1111 if (w->reschedule_cb) 1363 if (w->reschedule_cb)
1112 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1364 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1113 else if (w->interval) 1365 else if (w->interval)
1114 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1366 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1115 } 1367 }
1116 1368
1117 /* now rebuild the heap */ 1369 /* now rebuild the heap */
1118 for (i = periodiccnt >> 1; i--; ) 1370 for (i = periodiccnt >> 1; i--; )
1119 downheap ((WT *)periodics, periodiccnt, i); 1371 downheap (periodics, periodiccnt, i);
1120} 1372}
1121#endif 1373#endif
1122 1374
1123inline int 1375#if EV_IDLE_ENABLE
1124time_update_monotonic (EV_P) 1376void inline_size
1377idle_reify (EV_P)
1125{ 1378{
1379 if (expect_false (idleall))
1380 {
1381 int pri;
1382
1383 for (pri = NUMPRI; pri--; )
1384 {
1385 if (pendingcnt [pri])
1386 break;
1387
1388 if (idlecnt [pri])
1389 {
1390 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1391 break;
1392 }
1393 }
1394 }
1395}
1396#endif
1397
1398void inline_speed
1399time_update (EV_P_ ev_tstamp max_block)
1400{
1401 int i;
1402
1403#if EV_USE_MONOTONIC
1404 if (expect_true (have_monotonic))
1405 {
1406 ev_tstamp odiff = rtmn_diff;
1407
1126 mn_now = get_clock (); 1408 mn_now = get_clock ();
1127 1409
1410 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1411 /* interpolate in the meantime */
1128 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1412 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1129 { 1413 {
1130 ev_rt_now = rtmn_diff + mn_now; 1414 ev_rt_now = rtmn_diff + mn_now;
1131 return 0; 1415 return;
1132 } 1416 }
1133 else 1417
1134 {
1135 now_floor = mn_now; 1418 now_floor = mn_now;
1136 ev_rt_now = ev_time (); 1419 ev_rt_now = ev_time ();
1137 return 1;
1138 }
1139}
1140 1420
1141inline void 1421 /* loop a few times, before making important decisions.
1142time_update (EV_P) 1422 * on the choice of "4": one iteration isn't enough,
1143{ 1423 * in case we get preempted during the calls to
1144 int i; 1424 * ev_time and get_clock. a second call is almost guaranteed
1145 1425 * to succeed in that case, though. and looping a few more times
1146#if EV_USE_MONOTONIC 1426 * doesn't hurt either as we only do this on time-jumps or
1147 if (expect_true (have_monotonic)) 1427 * in the unlikely event of having been preempted here.
1148 { 1428 */
1149 if (time_update_monotonic (EV_A)) 1429 for (i = 4; --i; )
1150 { 1430 {
1151 ev_tstamp odiff = rtmn_diff;
1152
1153 for (i = 4; --i; ) /* loop a few times, before making important decisions */
1154 {
1155 rtmn_diff = ev_rt_now - mn_now; 1431 rtmn_diff = ev_rt_now - mn_now;
1156 1432
1157 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1433 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1158 return; /* all is well */ 1434 return; /* all is well */
1159 1435
1160 ev_rt_now = ev_time (); 1436 ev_rt_now = ev_time ();
1161 mn_now = get_clock (); 1437 mn_now = get_clock ();
1162 now_floor = mn_now; 1438 now_floor = mn_now;
1163 } 1439 }
1164 1440
1165# if EV_PERIODICS 1441# if EV_PERIODIC_ENABLE
1442 periodics_reschedule (EV_A);
1443# endif
1444 /* no timer adjustment, as the monotonic clock doesn't jump */
1445 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1446 }
1447 else
1448#endif
1449 {
1450 ev_rt_now = ev_time ();
1451
1452 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1453 {
1454#if EV_PERIODIC_ENABLE
1166 periodics_reschedule (EV_A); 1455 periodics_reschedule (EV_A);
1167# endif 1456#endif
1168 /* no timer adjustment, as the monotonic clock doesn't jump */
1169 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1170 }
1171 }
1172 else
1173#endif
1174 {
1175 ev_rt_now = ev_time ();
1176
1177 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1178 {
1179#if EV_PERIODICS
1180 periodics_reschedule (EV_A);
1181#endif
1182
1183 /* adjust timers. this is easy, as the offset is the same for all */ 1457 /* adjust timers. this is easy, as the offset is the same for all of them */
1184 for (i = 0; i < timercnt; ++i) 1458 for (i = 0; i < timercnt; ++i)
1185 ((WT)timers [i])->at += ev_rt_now - mn_now; 1459 ((WT)timers [i])->at += ev_rt_now - mn_now;
1186 } 1460 }
1187 1461
1188 mn_now = ev_rt_now; 1462 mn_now = ev_rt_now;
… …
1204static int loop_done; 1478static int loop_done;
1205 1479
1206void 1480void
1207ev_loop (EV_P_ int flags) 1481ev_loop (EV_P_ int flags)
1208{ 1482{
1209 double block;
1210 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1483 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1484 ? EVUNLOOP_ONE
1485 : EVUNLOOP_CANCEL;
1211 1486
1212 while (activecnt) 1487 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1488
1489 do
1213 { 1490 {
1491#ifndef _WIN32
1492 if (expect_false (curpid)) /* penalise the forking check even more */
1493 if (expect_false (getpid () != curpid))
1494 {
1495 curpid = getpid ();
1496 postfork = 1;
1497 }
1498#endif
1499
1500#if EV_FORK_ENABLE
1501 /* we might have forked, so queue fork handlers */
1502 if (expect_false (postfork))
1503 if (forkcnt)
1504 {
1505 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1506 call_pending (EV_A);
1507 }
1508#endif
1509
1214 /* queue check watchers (and execute them) */ 1510 /* queue prepare watchers (and execute them) */
1215 if (expect_false (preparecnt)) 1511 if (expect_false (preparecnt))
1216 { 1512 {
1217 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1513 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1218 call_pending (EV_A); 1514 call_pending (EV_A);
1219 } 1515 }
1220 1516
1517 if (expect_false (!activecnt))
1518 break;
1519
1221 /* we might have forked, so reify kernel state if necessary */ 1520 /* we might have forked, so reify kernel state if necessary */
1222 if (expect_false (postfork)) 1521 if (expect_false (postfork))
1223 loop_fork (EV_A); 1522 loop_fork (EV_A);
1224 1523
1225 /* update fd-related kernel structures */ 1524 /* update fd-related kernel structures */
1226 fd_reify (EV_A); 1525 fd_reify (EV_A);
1227 1526
1228 /* calculate blocking time */ 1527 /* calculate blocking time */
1528 {
1529 ev_tstamp waittime = 0.;
1530 ev_tstamp sleeptime = 0.;
1229 1531
1230 /* we only need this for !monotonic clock or timers, but as we basically 1532 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1231 always have timers, we just calculate it always */
1232#if EV_USE_MONOTONIC
1233 if (expect_true (have_monotonic))
1234 time_update_monotonic (EV_A);
1235 else
1236#endif
1237 { 1533 {
1238 ev_rt_now = ev_time (); 1534 /* update time to cancel out callback processing overhead */
1239 mn_now = ev_rt_now; 1535 time_update (EV_A_ 1e100);
1240 }
1241 1536
1242 if (flags & EVLOOP_NONBLOCK || idlecnt)
1243 block = 0.;
1244 else
1245 {
1246 block = MAX_BLOCKTIME; 1537 waittime = MAX_BLOCKTIME;
1247 1538
1248 if (timercnt) 1539 if (timercnt)
1249 { 1540 {
1250 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1541 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1251 if (block > to) block = to; 1542 if (waittime > to) waittime = to;
1252 } 1543 }
1253 1544
1254#if EV_PERIODICS 1545#if EV_PERIODIC_ENABLE
1255 if (periodiccnt) 1546 if (periodiccnt)
1256 { 1547 {
1257 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1548 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1258 if (block > to) block = to; 1549 if (waittime > to) waittime = to;
1259 } 1550 }
1260#endif 1551#endif
1261 1552
1262 if (expect_false (block < 0.)) block = 0.; 1553 if (expect_false (waittime < timeout_blocktime))
1554 waittime = timeout_blocktime;
1555
1556 sleeptime = waittime - backend_fudge;
1557
1558 if (expect_true (sleeptime > io_blocktime))
1559 sleeptime = io_blocktime;
1560
1561 if (sleeptime)
1562 {
1563 ev_sleep (sleeptime);
1564 waittime -= sleeptime;
1565 }
1263 } 1566 }
1264 1567
1265 method_poll (EV_A_ block); 1568 ++loop_count;
1569 backend_poll (EV_A_ waittime);
1266 1570
1267 /* update ev_rt_now, do magic */ 1571 /* update ev_rt_now, do magic */
1268 time_update (EV_A); 1572 time_update (EV_A_ waittime + sleeptime);
1573 }
1269 1574
1270 /* queue pending timers and reschedule them */ 1575 /* queue pending timers and reschedule them */
1271 timers_reify (EV_A); /* relative timers called last */ 1576 timers_reify (EV_A); /* relative timers called last */
1272#if EV_PERIODICS 1577#if EV_PERIODIC_ENABLE
1273 periodics_reify (EV_A); /* absolute timers called first */ 1578 periodics_reify (EV_A); /* absolute timers called first */
1274#endif 1579#endif
1275 1580
1581#if EV_IDLE_ENABLE
1276 /* queue idle watchers unless io or timers are pending */ 1582 /* queue idle watchers unless other events are pending */
1277 if (idlecnt && !any_pending (EV_A)) 1583 idle_reify (EV_A);
1278 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1584#endif
1279 1585
1280 /* queue check watchers, to be executed first */ 1586 /* queue check watchers, to be executed first */
1281 if (expect_false (checkcnt)) 1587 if (expect_false (checkcnt))
1282 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1588 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1283 1589
1284 call_pending (EV_A); 1590 call_pending (EV_A);
1285 1591
1286 if (expect_false (loop_done))
1287 break;
1288 } 1592 }
1593 while (expect_true (activecnt && !loop_done));
1289 1594
1290 if (loop_done != 2) 1595 if (loop_done == EVUNLOOP_ONE)
1291 loop_done = 0; 1596 loop_done = EVUNLOOP_CANCEL;
1292} 1597}
1293 1598
1294void 1599void
1295ev_unloop (EV_P_ int how) 1600ev_unloop (EV_P_ int how)
1296{ 1601{
1297 loop_done = how; 1602 loop_done = how;
1298} 1603}
1299 1604
1300/*****************************************************************************/ 1605/*****************************************************************************/
1301 1606
1302inline void 1607void inline_size
1303wlist_add (WL *head, WL elem) 1608wlist_add (WL *head, WL elem)
1304{ 1609{
1305 elem->next = *head; 1610 elem->next = *head;
1306 *head = elem; 1611 *head = elem;
1307} 1612}
1308 1613
1309inline void 1614void inline_size
1310wlist_del (WL *head, WL elem) 1615wlist_del (WL *head, WL elem)
1311{ 1616{
1312 while (*head) 1617 while (*head)
1313 { 1618 {
1314 if (*head == elem) 1619 if (*head == elem)
… …
1319 1624
1320 head = &(*head)->next; 1625 head = &(*head)->next;
1321 } 1626 }
1322} 1627}
1323 1628
1324inline void 1629void inline_speed
1325ev_clear_pending (EV_P_ W w) 1630clear_pending (EV_P_ W w)
1326{ 1631{
1327 if (w->pending) 1632 if (w->pending)
1328 { 1633 {
1329 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1634 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1330 w->pending = 0; 1635 w->pending = 0;
1331 } 1636 }
1332} 1637}
1333 1638
1334inline void 1639int
1640ev_clear_pending (EV_P_ void *w)
1641{
1642 W w_ = (W)w;
1643 int pending = w_->pending;
1644
1645 if (expect_true (pending))
1646 {
1647 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1648 w_->pending = 0;
1649 p->w = 0;
1650 return p->events;
1651 }
1652 else
1653 return 0;
1654}
1655
1656void inline_size
1657pri_adjust (EV_P_ W w)
1658{
1659 int pri = w->priority;
1660 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1661 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1662 w->priority = pri;
1663}
1664
1665void inline_speed
1335ev_start (EV_P_ W w, int active) 1666ev_start (EV_P_ W w, int active)
1336{ 1667{
1337 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1668 pri_adjust (EV_A_ w);
1338 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1339
1340 w->active = active; 1669 w->active = active;
1341 ev_ref (EV_A); 1670 ev_ref (EV_A);
1342} 1671}
1343 1672
1344inline void 1673void inline_size
1345ev_stop (EV_P_ W w) 1674ev_stop (EV_P_ W w)
1346{ 1675{
1347 ev_unref (EV_A); 1676 ev_unref (EV_A);
1348 w->active = 0; 1677 w->active = 0;
1349} 1678}
1350 1679
1351/*****************************************************************************/ 1680/*****************************************************************************/
1352 1681
1353void 1682void noinline
1354ev_io_start (EV_P_ struct ev_io *w) 1683ev_io_start (EV_P_ ev_io *w)
1355{ 1684{
1356 int fd = w->fd; 1685 int fd = w->fd;
1357 1686
1358 if (expect_false (ev_is_active (w))) 1687 if (expect_false (ev_is_active (w)))
1359 return; 1688 return;
1360 1689
1361 assert (("ev_io_start called with negative fd", fd >= 0)); 1690 assert (("ev_io_start called with negative fd", fd >= 0));
1362 1691
1363 ev_start (EV_A_ (W)w, 1); 1692 ev_start (EV_A_ (W)w, 1);
1364 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1693 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1365 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1694 wlist_add (&anfds[fd].head, (WL)w);
1366 1695
1367 fd_change (EV_A_ fd); 1696 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1697 w->events &= ~EV_IOFDSET;
1368} 1698}
1369 1699
1370void 1700void noinline
1371ev_io_stop (EV_P_ struct ev_io *w) 1701ev_io_stop (EV_P_ ev_io *w)
1372{ 1702{
1373 ev_clear_pending (EV_A_ (W)w); 1703 clear_pending (EV_A_ (W)w);
1374 if (expect_false (!ev_is_active (w))) 1704 if (expect_false (!ev_is_active (w)))
1375 return; 1705 return;
1376 1706
1377 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1707 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1378 1708
1379 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1709 wlist_del (&anfds[w->fd].head, (WL)w);
1380 ev_stop (EV_A_ (W)w); 1710 ev_stop (EV_A_ (W)w);
1381 1711
1382 fd_change (EV_A_ w->fd); 1712 fd_change (EV_A_ w->fd, 1);
1383} 1713}
1384 1714
1385void 1715void noinline
1386ev_timer_start (EV_P_ struct ev_timer *w) 1716ev_timer_start (EV_P_ ev_timer *w)
1387{ 1717{
1388 if (expect_false (ev_is_active (w))) 1718 if (expect_false (ev_is_active (w)))
1389 return; 1719 return;
1390 1720
1391 ((WT)w)->at += mn_now; 1721 ((WT)w)->at += mn_now;
1392 1722
1393 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1723 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1394 1724
1395 ev_start (EV_A_ (W)w, ++timercnt); 1725 ev_start (EV_A_ (W)w, ++timercnt);
1396 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1726 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1397 timers [timercnt - 1] = w; 1727 timers [timercnt - 1] = (WT)w;
1398 upheap ((WT *)timers, timercnt - 1); 1728 upheap (timers, timercnt - 1);
1399 1729
1400 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1730 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1401} 1731}
1402 1732
1403void 1733void noinline
1404ev_timer_stop (EV_P_ struct ev_timer *w) 1734ev_timer_stop (EV_P_ ev_timer *w)
1405{ 1735{
1406 ev_clear_pending (EV_A_ (W)w); 1736 clear_pending (EV_A_ (W)w);
1407 if (expect_false (!ev_is_active (w))) 1737 if (expect_false (!ev_is_active (w)))
1408 return; 1738 return;
1409 1739
1410 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1740 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1411 1741
1742 {
1743 int active = ((W)w)->active;
1744
1412 if (expect_true (((W)w)->active < timercnt--)) 1745 if (expect_true (--active < --timercnt))
1413 { 1746 {
1414 timers [((W)w)->active - 1] = timers [timercnt]; 1747 timers [active] = timers [timercnt];
1415 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1748 adjustheap (timers, timercnt, active);
1416 } 1749 }
1750 }
1417 1751
1418 ((WT)w)->at -= mn_now; 1752 ((WT)w)->at -= mn_now;
1419 1753
1420 ev_stop (EV_A_ (W)w); 1754 ev_stop (EV_A_ (W)w);
1421} 1755}
1422 1756
1423void 1757void noinline
1424ev_timer_again (EV_P_ struct ev_timer *w) 1758ev_timer_again (EV_P_ ev_timer *w)
1425{ 1759{
1426 if (ev_is_active (w)) 1760 if (ev_is_active (w))
1427 { 1761 {
1428 if (w->repeat) 1762 if (w->repeat)
1429 { 1763 {
1430 ((WT)w)->at = mn_now + w->repeat; 1764 ((WT)w)->at = mn_now + w->repeat;
1431 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1765 adjustheap (timers, timercnt, ((W)w)->active - 1);
1432 } 1766 }
1433 else 1767 else
1434 ev_timer_stop (EV_A_ w); 1768 ev_timer_stop (EV_A_ w);
1435 } 1769 }
1436 else if (w->repeat) 1770 else if (w->repeat)
… …
1438 w->at = w->repeat; 1772 w->at = w->repeat;
1439 ev_timer_start (EV_A_ w); 1773 ev_timer_start (EV_A_ w);
1440 } 1774 }
1441} 1775}
1442 1776
1443#if EV_PERIODICS 1777#if EV_PERIODIC_ENABLE
1444void 1778void noinline
1445ev_periodic_start (EV_P_ struct ev_periodic *w) 1779ev_periodic_start (EV_P_ ev_periodic *w)
1446{ 1780{
1447 if (expect_false (ev_is_active (w))) 1781 if (expect_false (ev_is_active (w)))
1448 return; 1782 return;
1449 1783
1450 if (w->reschedule_cb) 1784 if (w->reschedule_cb)
1451 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1785 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1452 else if (w->interval) 1786 else if (w->interval)
1453 { 1787 {
1454 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1788 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1455 /* this formula differs from the one in periodic_reify because we do not always round up */ 1789 /* this formula differs from the one in periodic_reify because we do not always round up */
1456 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1790 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1457 } 1791 }
1792 else
1793 ((WT)w)->at = w->offset;
1458 1794
1459 ev_start (EV_A_ (W)w, ++periodiccnt); 1795 ev_start (EV_A_ (W)w, ++periodiccnt);
1460 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1796 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1461 periodics [periodiccnt - 1] = w; 1797 periodics [periodiccnt - 1] = (WT)w;
1462 upheap ((WT *)periodics, periodiccnt - 1); 1798 upheap (periodics, periodiccnt - 1);
1463 1799
1464 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1800 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1465} 1801}
1466 1802
1467void 1803void noinline
1468ev_periodic_stop (EV_P_ struct ev_periodic *w) 1804ev_periodic_stop (EV_P_ ev_periodic *w)
1469{ 1805{
1470 ev_clear_pending (EV_A_ (W)w); 1806 clear_pending (EV_A_ (W)w);
1471 if (expect_false (!ev_is_active (w))) 1807 if (expect_false (!ev_is_active (w)))
1472 return; 1808 return;
1473 1809
1474 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1810 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1475 1811
1812 {
1813 int active = ((W)w)->active;
1814
1476 if (expect_true (((W)w)->active < periodiccnt--)) 1815 if (expect_true (--active < --periodiccnt))
1477 { 1816 {
1478 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1817 periodics [active] = periodics [periodiccnt];
1479 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1818 adjustheap (periodics, periodiccnt, active);
1480 } 1819 }
1820 }
1481 1821
1482 ev_stop (EV_A_ (W)w); 1822 ev_stop (EV_A_ (W)w);
1483} 1823}
1484 1824
1485void 1825void noinline
1486ev_periodic_again (EV_P_ struct ev_periodic *w) 1826ev_periodic_again (EV_P_ ev_periodic *w)
1487{ 1827{
1488 /* TODO: use adjustheap and recalculation */ 1828 /* TODO: use adjustheap and recalculation */
1489 ev_periodic_stop (EV_A_ w); 1829 ev_periodic_stop (EV_A_ w);
1490 ev_periodic_start (EV_A_ w); 1830 ev_periodic_start (EV_A_ w);
1491} 1831}
1492#endif 1832#endif
1493 1833
1494void
1495ev_idle_start (EV_P_ struct ev_idle *w)
1496{
1497 if (expect_false (ev_is_active (w)))
1498 return;
1499
1500 ev_start (EV_A_ (W)w, ++idlecnt);
1501 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1502 idles [idlecnt - 1] = w;
1503}
1504
1505void
1506ev_idle_stop (EV_P_ struct ev_idle *w)
1507{
1508 ev_clear_pending (EV_A_ (W)w);
1509 if (expect_false (!ev_is_active (w)))
1510 return;
1511
1512 idles [((W)w)->active - 1] = idles [--idlecnt];
1513 ev_stop (EV_A_ (W)w);
1514}
1515
1516void
1517ev_prepare_start (EV_P_ struct ev_prepare *w)
1518{
1519 if (expect_false (ev_is_active (w)))
1520 return;
1521
1522 ev_start (EV_A_ (W)w, ++preparecnt);
1523 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1524 prepares [preparecnt - 1] = w;
1525}
1526
1527void
1528ev_prepare_stop (EV_P_ struct ev_prepare *w)
1529{
1530 ev_clear_pending (EV_A_ (W)w);
1531 if (expect_false (!ev_is_active (w)))
1532 return;
1533
1534 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1535 ev_stop (EV_A_ (W)w);
1536}
1537
1538void
1539ev_check_start (EV_P_ struct ev_check *w)
1540{
1541 if (expect_false (ev_is_active (w)))
1542 return;
1543
1544 ev_start (EV_A_ (W)w, ++checkcnt);
1545 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1546 checks [checkcnt - 1] = w;
1547}
1548
1549void
1550ev_check_stop (EV_P_ struct ev_check *w)
1551{
1552 ev_clear_pending (EV_A_ (W)w);
1553 if (expect_false (!ev_is_active (w)))
1554 return;
1555
1556 checks [((W)w)->active - 1] = checks [--checkcnt];
1557 ev_stop (EV_A_ (W)w);
1558}
1559
1560#ifndef SA_RESTART 1834#ifndef SA_RESTART
1561# define SA_RESTART 0 1835# define SA_RESTART 0
1562#endif 1836#endif
1563 1837
1564void 1838void noinline
1565ev_signal_start (EV_P_ struct ev_signal *w) 1839ev_signal_start (EV_P_ ev_signal *w)
1566{ 1840{
1567#if EV_MULTIPLICITY 1841#if EV_MULTIPLICITY
1568 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1842 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1569#endif 1843#endif
1570 if (expect_false (ev_is_active (w))) 1844 if (expect_false (ev_is_active (w)))
1571 return; 1845 return;
1572 1846
1573 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1847 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1574 1848
1849 {
1850#ifndef _WIN32
1851 sigset_t full, prev;
1852 sigfillset (&full);
1853 sigprocmask (SIG_SETMASK, &full, &prev);
1854#endif
1855
1856 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1857
1858#ifndef _WIN32
1859 sigprocmask (SIG_SETMASK, &prev, 0);
1860#endif
1861 }
1862
1575 ev_start (EV_A_ (W)w, 1); 1863 ev_start (EV_A_ (W)w, 1);
1576 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1577 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1864 wlist_add (&signals [w->signum - 1].head, (WL)w);
1578 1865
1579 if (!((WL)w)->next) 1866 if (!((WL)w)->next)
1580 { 1867 {
1581#if _WIN32 1868#if _WIN32
1582 signal (w->signum, sighandler); 1869 signal (w->signum, sighandler);
… …
1588 sigaction (w->signum, &sa, 0); 1875 sigaction (w->signum, &sa, 0);
1589#endif 1876#endif
1590 } 1877 }
1591} 1878}
1592 1879
1593void 1880void noinline
1594ev_signal_stop (EV_P_ struct ev_signal *w) 1881ev_signal_stop (EV_P_ ev_signal *w)
1595{ 1882{
1596 ev_clear_pending (EV_A_ (W)w); 1883 clear_pending (EV_A_ (W)w);
1597 if (expect_false (!ev_is_active (w))) 1884 if (expect_false (!ev_is_active (w)))
1598 return; 1885 return;
1599 1886
1600 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1887 wlist_del (&signals [w->signum - 1].head, (WL)w);
1601 ev_stop (EV_A_ (W)w); 1888 ev_stop (EV_A_ (W)w);
1602 1889
1603 if (!signals [w->signum - 1].head) 1890 if (!signals [w->signum - 1].head)
1604 signal (w->signum, SIG_DFL); 1891 signal (w->signum, SIG_DFL);
1605} 1892}
1606 1893
1607void 1894void
1608ev_child_start (EV_P_ struct ev_child *w) 1895ev_child_start (EV_P_ ev_child *w)
1609{ 1896{
1610#if EV_MULTIPLICITY 1897#if EV_MULTIPLICITY
1611 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1898 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1612#endif 1899#endif
1613 if (expect_false (ev_is_active (w))) 1900 if (expect_false (ev_is_active (w)))
1614 return; 1901 return;
1615 1902
1616 ev_start (EV_A_ (W)w, 1); 1903 ev_start (EV_A_ (W)w, 1);
1617 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1904 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1618} 1905}
1619 1906
1620void 1907void
1621ev_child_stop (EV_P_ struct ev_child *w) 1908ev_child_stop (EV_P_ ev_child *w)
1622{ 1909{
1623 ev_clear_pending (EV_A_ (W)w); 1910 clear_pending (EV_A_ (W)w);
1624 if (expect_false (!ev_is_active (w))) 1911 if (expect_false (!ev_is_active (w)))
1625 return; 1912 return;
1626 1913
1627 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1914 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1628 ev_stop (EV_A_ (W)w); 1915 ev_stop (EV_A_ (W)w);
1629} 1916}
1630 1917
1918#if EV_STAT_ENABLE
1919
1920# ifdef _WIN32
1921# undef lstat
1922# define lstat(a,b) _stati64 (a,b)
1923# endif
1924
1925#define DEF_STAT_INTERVAL 5.0074891
1926#define MIN_STAT_INTERVAL 0.1074891
1927
1928static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1929
1930#if EV_USE_INOTIFY
1931# define EV_INOTIFY_BUFSIZE 8192
1932
1933static void noinline
1934infy_add (EV_P_ ev_stat *w)
1935{
1936 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);
1937
1938 if (w->wd < 0)
1939 {
1940 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1941
1942 /* monitor some parent directory for speedup hints */
1943 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1944 {
1945 char path [4096];
1946 strcpy (path, w->path);
1947
1948 do
1949 {
1950 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1951 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1952
1953 char *pend = strrchr (path, '/');
1954
1955 if (!pend)
1956 break; /* whoops, no '/', complain to your admin */
1957
1958 *pend = 0;
1959 w->wd = inotify_add_watch (fs_fd, path, mask);
1960 }
1961 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1962 }
1963 }
1964 else
1965 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1966
1967 if (w->wd >= 0)
1968 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1969}
1970
1971static void noinline
1972infy_del (EV_P_ ev_stat *w)
1973{
1974 int slot;
1975 int wd = w->wd;
1976
1977 if (wd < 0)
1978 return;
1979
1980 w->wd = -2;
1981 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1982 wlist_del (&fs_hash [slot].head, (WL)w);
1983
1984 /* remove this watcher, if others are watching it, they will rearm */
1985 inotify_rm_watch (fs_fd, wd);
1986}
1987
1988static void noinline
1989infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1990{
1991 if (slot < 0)
1992 /* overflow, need to check for all hahs slots */
1993 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1994 infy_wd (EV_A_ slot, wd, ev);
1995 else
1996 {
1997 WL w_;
1998
1999 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
2000 {
2001 ev_stat *w = (ev_stat *)w_;
2002 w_ = w_->next; /* lets us remove this watcher and all before it */
2003
2004 if (w->wd == wd || wd == -1)
2005 {
2006 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2007 {
2008 w->wd = -1;
2009 infy_add (EV_A_ w); /* re-add, no matter what */
2010 }
2011
2012 stat_timer_cb (EV_A_ &w->timer, 0);
2013 }
2014 }
2015 }
2016}
2017
2018static void
2019infy_cb (EV_P_ ev_io *w, int revents)
2020{
2021 char buf [EV_INOTIFY_BUFSIZE];
2022 struct inotify_event *ev = (struct inotify_event *)buf;
2023 int ofs;
2024 int len = read (fs_fd, buf, sizeof (buf));
2025
2026 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2027 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2028}
2029
2030void inline_size
2031infy_init (EV_P)
2032{
2033 if (fs_fd != -2)
2034 return;
2035
2036 fs_fd = inotify_init ();
2037
2038 if (fs_fd >= 0)
2039 {
2040 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2041 ev_set_priority (&fs_w, EV_MAXPRI);
2042 ev_io_start (EV_A_ &fs_w);
2043 }
2044}
2045
2046void inline_size
2047infy_fork (EV_P)
2048{
2049 int slot;
2050
2051 if (fs_fd < 0)
2052 return;
2053
2054 close (fs_fd);
2055 fs_fd = inotify_init ();
2056
2057 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2058 {
2059 WL w_ = fs_hash [slot].head;
2060 fs_hash [slot].head = 0;
2061
2062 while (w_)
2063 {
2064 ev_stat *w = (ev_stat *)w_;
2065 w_ = w_->next; /* lets us add this watcher */
2066
2067 w->wd = -1;
2068
2069 if (fs_fd >= 0)
2070 infy_add (EV_A_ w); /* re-add, no matter what */
2071 else
2072 ev_timer_start (EV_A_ &w->timer);
2073 }
2074
2075 }
2076}
2077
2078#endif
2079
2080void
2081ev_stat_stat (EV_P_ ev_stat *w)
2082{
2083 if (lstat (w->path, &w->attr) < 0)
2084 w->attr.st_nlink = 0;
2085 else if (!w->attr.st_nlink)
2086 w->attr.st_nlink = 1;
2087}
2088
2089static void noinline
2090stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2091{
2092 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2093
2094 /* we copy this here each the time so that */
2095 /* prev has the old value when the callback gets invoked */
2096 w->prev = w->attr;
2097 ev_stat_stat (EV_A_ w);
2098
2099 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2100 if (
2101 w->prev.st_dev != w->attr.st_dev
2102 || w->prev.st_ino != w->attr.st_ino
2103 || w->prev.st_mode != w->attr.st_mode
2104 || w->prev.st_nlink != w->attr.st_nlink
2105 || w->prev.st_uid != w->attr.st_uid
2106 || w->prev.st_gid != w->attr.st_gid
2107 || w->prev.st_rdev != w->attr.st_rdev
2108 || w->prev.st_size != w->attr.st_size
2109 || w->prev.st_atime != w->attr.st_atime
2110 || w->prev.st_mtime != w->attr.st_mtime
2111 || w->prev.st_ctime != w->attr.st_ctime
2112 ) {
2113 #if EV_USE_INOTIFY
2114 infy_del (EV_A_ w);
2115 infy_add (EV_A_ w);
2116 ev_stat_stat (EV_A_ w); /* avoid race... */
2117 #endif
2118
2119 ev_feed_event (EV_A_ w, EV_STAT);
2120 }
2121}
2122
2123void
2124ev_stat_start (EV_P_ ev_stat *w)
2125{
2126 if (expect_false (ev_is_active (w)))
2127 return;
2128
2129 /* since we use memcmp, we need to clear any padding data etc. */
2130 memset (&w->prev, 0, sizeof (ev_statdata));
2131 memset (&w->attr, 0, sizeof (ev_statdata));
2132
2133 ev_stat_stat (EV_A_ w);
2134
2135 if (w->interval < MIN_STAT_INTERVAL)
2136 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2137
2138 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2139 ev_set_priority (&w->timer, ev_priority (w));
2140
2141#if EV_USE_INOTIFY
2142 infy_init (EV_A);
2143
2144 if (fs_fd >= 0)
2145 infy_add (EV_A_ w);
2146 else
2147#endif
2148 ev_timer_start (EV_A_ &w->timer);
2149
2150 ev_start (EV_A_ (W)w, 1);
2151}
2152
2153void
2154ev_stat_stop (EV_P_ ev_stat *w)
2155{
2156 clear_pending (EV_A_ (W)w);
2157 if (expect_false (!ev_is_active (w)))
2158 return;
2159
2160#if EV_USE_INOTIFY
2161 infy_del (EV_A_ w);
2162#endif
2163 ev_timer_stop (EV_A_ &w->timer);
2164
2165 ev_stop (EV_A_ (W)w);
2166}
2167#endif
2168
2169#if EV_IDLE_ENABLE
2170void
2171ev_idle_start (EV_P_ ev_idle *w)
2172{
2173 if (expect_false (ev_is_active (w)))
2174 return;
2175
2176 pri_adjust (EV_A_ (W)w);
2177
2178 {
2179 int active = ++idlecnt [ABSPRI (w)];
2180
2181 ++idleall;
2182 ev_start (EV_A_ (W)w, active);
2183
2184 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2185 idles [ABSPRI (w)][active - 1] = w;
2186 }
2187}
2188
2189void
2190ev_idle_stop (EV_P_ ev_idle *w)
2191{
2192 clear_pending (EV_A_ (W)w);
2193 if (expect_false (!ev_is_active (w)))
2194 return;
2195
2196 {
2197 int active = ((W)w)->active;
2198
2199 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2200 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2201
2202 ev_stop (EV_A_ (W)w);
2203 --idleall;
2204 }
2205}
2206#endif
2207
2208void
2209ev_prepare_start (EV_P_ ev_prepare *w)
2210{
2211 if (expect_false (ev_is_active (w)))
2212 return;
2213
2214 ev_start (EV_A_ (W)w, ++preparecnt);
2215 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2216 prepares [preparecnt - 1] = w;
2217}
2218
2219void
2220ev_prepare_stop (EV_P_ ev_prepare *w)
2221{
2222 clear_pending (EV_A_ (W)w);
2223 if (expect_false (!ev_is_active (w)))
2224 return;
2225
2226 {
2227 int active = ((W)w)->active;
2228 prepares [active - 1] = prepares [--preparecnt];
2229 ((W)prepares [active - 1])->active = active;
2230 }
2231
2232 ev_stop (EV_A_ (W)w);
2233}
2234
2235void
2236ev_check_start (EV_P_ ev_check *w)
2237{
2238 if (expect_false (ev_is_active (w)))
2239 return;
2240
2241 ev_start (EV_A_ (W)w, ++checkcnt);
2242 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2243 checks [checkcnt - 1] = w;
2244}
2245
2246void
2247ev_check_stop (EV_P_ ev_check *w)
2248{
2249 clear_pending (EV_A_ (W)w);
2250 if (expect_false (!ev_is_active (w)))
2251 return;
2252
2253 {
2254 int active = ((W)w)->active;
2255 checks [active - 1] = checks [--checkcnt];
2256 ((W)checks [active - 1])->active = active;
2257 }
2258
2259 ev_stop (EV_A_ (W)w);
2260}
2261
2262#if EV_EMBED_ENABLE
2263void noinline
2264ev_embed_sweep (EV_P_ ev_embed *w)
2265{
2266 ev_loop (w->other, EVLOOP_NONBLOCK);
2267}
2268
2269static void
2270embed_io_cb (EV_P_ ev_io *io, int revents)
2271{
2272 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2273
2274 if (ev_cb (w))
2275 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2276 else
2277 ev_loop (w->other, EVLOOP_NONBLOCK);
2278}
2279
2280static void
2281embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2282{
2283 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2284
2285 {
2286 struct ev_loop *loop = w->other;
2287
2288 while (fdchangecnt)
2289 {
2290 fd_reify (EV_A);
2291 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2292 }
2293 }
2294}
2295
2296#if 0
2297static void
2298embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2299{
2300 ev_idle_stop (EV_A_ idle);
2301}
2302#endif
2303
2304void
2305ev_embed_start (EV_P_ ev_embed *w)
2306{
2307 if (expect_false (ev_is_active (w)))
2308 return;
2309
2310 {
2311 struct ev_loop *loop = w->other;
2312 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2313 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2314 }
2315
2316 ev_set_priority (&w->io, ev_priority (w));
2317 ev_io_start (EV_A_ &w->io);
2318
2319 ev_prepare_init (&w->prepare, embed_prepare_cb);
2320 ev_set_priority (&w->prepare, EV_MINPRI);
2321 ev_prepare_start (EV_A_ &w->prepare);
2322
2323 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2324
2325 ev_start (EV_A_ (W)w, 1);
2326}
2327
2328void
2329ev_embed_stop (EV_P_ ev_embed *w)
2330{
2331 clear_pending (EV_A_ (W)w);
2332 if (expect_false (!ev_is_active (w)))
2333 return;
2334
2335 ev_io_stop (EV_A_ &w->io);
2336 ev_prepare_stop (EV_A_ &w->prepare);
2337
2338 ev_stop (EV_A_ (W)w);
2339}
2340#endif
2341
2342#if EV_FORK_ENABLE
2343void
2344ev_fork_start (EV_P_ ev_fork *w)
2345{
2346 if (expect_false (ev_is_active (w)))
2347 return;
2348
2349 ev_start (EV_A_ (W)w, ++forkcnt);
2350 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2351 forks [forkcnt - 1] = w;
2352}
2353
2354void
2355ev_fork_stop (EV_P_ ev_fork *w)
2356{
2357 clear_pending (EV_A_ (W)w);
2358 if (expect_false (!ev_is_active (w)))
2359 return;
2360
2361 {
2362 int active = ((W)w)->active;
2363 forks [active - 1] = forks [--forkcnt];
2364 ((W)forks [active - 1])->active = active;
2365 }
2366
2367 ev_stop (EV_A_ (W)w);
2368}
2369#endif
2370
1631/*****************************************************************************/ 2371/*****************************************************************************/
1632 2372
1633struct ev_once 2373struct ev_once
1634{ 2374{
1635 struct ev_io io; 2375 ev_io io;
1636 struct ev_timer to; 2376 ev_timer to;
1637 void (*cb)(int revents, void *arg); 2377 void (*cb)(int revents, void *arg);
1638 void *arg; 2378 void *arg;
1639}; 2379};
1640 2380
1641static void 2381static void
… …
1650 2390
1651 cb (revents, arg); 2391 cb (revents, arg);
1652} 2392}
1653 2393
1654static void 2394static void
1655once_cb_io (EV_P_ struct ev_io *w, int revents) 2395once_cb_io (EV_P_ ev_io *w, int revents)
1656{ 2396{
1657 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2397 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1658} 2398}
1659 2399
1660static void 2400static void
1661once_cb_to (EV_P_ struct ev_timer *w, int revents) 2401once_cb_to (EV_P_ ev_timer *w, int revents)
1662{ 2402{
1663 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2403 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1664} 2404}
1665 2405
1666void 2406void
… …
1690 ev_timer_set (&once->to, timeout, 0.); 2430 ev_timer_set (&once->to, timeout, 0.);
1691 ev_timer_start (EV_A_ &once->to); 2431 ev_timer_start (EV_A_ &once->to);
1692 } 2432 }
1693} 2433}
1694 2434
2435#if EV_MULTIPLICITY
2436 #include "ev_wrap.h"
2437#endif
2438
1695#ifdef __cplusplus 2439#ifdef __cplusplus
1696} 2440}
1697#endif 2441#endif
1698 2442

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