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Comparing libev/ev.c (file contents):
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC vs.
Revision 1.196 by root, Sat Dec 22 12:43:28 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
… …
50# ifndef EV_USE_REALTIME 54# ifndef EV_USE_REALTIME
51# define EV_USE_REALTIME 0 55# define EV_USE_REALTIME 0
52# endif 56# endif
53# endif 57# endif
54 58
55# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) 59# ifndef EV_USE_NANOSLEEP
60# if HAVE_NANOSLEEP
56# define EV_USE_SELECT 1 61# define EV_USE_NANOSLEEP 1
57# else 62# else
58# define EV_USE_SELECT 0 63# define EV_USE_NANOSLEEP 0
64# endif
59# endif 65# endif
60 66
61# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) 67# ifndef EV_USE_SELECT
68# if HAVE_SELECT && HAVE_SYS_SELECT_H
62# define EV_USE_POLL 1 69# define EV_USE_SELECT 1
63# else 70# else
64# define EV_USE_POLL 0 71# define EV_USE_SELECT 0
72# endif
65# endif 73# endif
66 74
67# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) 75# ifndef EV_USE_POLL
76# if HAVE_POLL && HAVE_POLL_H
68# define EV_USE_EPOLL 1 77# define EV_USE_POLL 1
69# else 78# else
70# define EV_USE_EPOLL 0 79# define EV_USE_POLL 0
80# endif
71# endif 81# endif
72 82
73# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) 83# ifndef EV_USE_EPOLL
84# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
74# define EV_USE_KQUEUE 1 85# define EV_USE_EPOLL 1
75# else 86# else
76# define EV_USE_KQUEUE 0 87# define EV_USE_EPOLL 0
88# endif
77# endif 89# endif
78 90
79# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT) 91# ifndef EV_USE_KQUEUE
92# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
93# define EV_USE_KQUEUE 1
94# else
95# define EV_USE_KQUEUE 0
96# endif
97# endif
98
99# ifndef EV_USE_PORT
100# if HAVE_PORT_H && HAVE_PORT_CREATE
80# define EV_USE_PORT 1 101# define EV_USE_PORT 1
81# else 102# else
82# define EV_USE_PORT 0 103# define EV_USE_PORT 0
104# endif
105# endif
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
83# endif 113# endif
84 114
85#endif 115#endif
86 116
87#include <math.h> 117#include <math.h>
… …
96#include <sys/types.h> 126#include <sys/types.h>
97#include <time.h> 127#include <time.h>
98 128
99#include <signal.h> 129#include <signal.h>
100 130
131#ifdef EV_H
132# include EV_H
133#else
134# include "ev.h"
135#endif
136
101#ifndef _WIN32 137#ifndef _WIN32
102# include <unistd.h>
103# include <sys/time.h> 138# include <sys/time.h>
104# include <sys/wait.h> 139# include <sys/wait.h>
140# include <unistd.h>
105#else 141#else
106# define WIN32_LEAN_AND_MEAN 142# define WIN32_LEAN_AND_MEAN
107# include <windows.h> 143# include <windows.h>
108# ifndef EV_SELECT_IS_WINSOCKET 144# ifndef EV_SELECT_IS_WINSOCKET
109# define EV_SELECT_IS_WINSOCKET 1 145# define EV_SELECT_IS_WINSOCKET 1
… …
118 154
119#ifndef EV_USE_REALTIME 155#ifndef EV_USE_REALTIME
120# define EV_USE_REALTIME 0 156# define EV_USE_REALTIME 0
121#endif 157#endif
122 158
159#ifndef EV_USE_NANOSLEEP
160# define EV_USE_NANOSLEEP 0
161#endif
162
123#ifndef EV_USE_SELECT 163#ifndef EV_USE_SELECT
124# define EV_USE_SELECT 1 164# define EV_USE_SELECT 1
125#endif 165#endif
126 166
127#ifndef EV_USE_POLL 167#ifndef EV_USE_POLL
… …
142 182
143#ifndef EV_USE_PORT 183#ifndef EV_USE_PORT
144# define EV_USE_PORT 0 184# define EV_USE_PORT 0
145#endif 185#endif
146 186
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
147/**/ 207/**/
148
149/* darwin simply cannot be helped */
150#ifdef __APPLE__
151# undef EV_USE_POLL
152# undef EV_USE_KQUEUE
153#endif
154 208
155#ifndef CLOCK_MONOTONIC 209#ifndef CLOCK_MONOTONIC
156# undef EV_USE_MONOTONIC 210# undef EV_USE_MONOTONIC
157# define EV_USE_MONOTONIC 0 211# define EV_USE_MONOTONIC 0
158#endif 212#endif
… …
160#ifndef CLOCK_REALTIME 214#ifndef CLOCK_REALTIME
161# undef EV_USE_REALTIME 215# undef EV_USE_REALTIME
162# define EV_USE_REALTIME 0 216# define EV_USE_REALTIME 0
163#endif 217#endif
164 218
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
165#if EV_SELECT_IS_WINSOCKET 234#if EV_SELECT_IS_WINSOCKET
166# include <winsock.h> 235# include <winsock.h>
167#endif 236#endif
168 237
169/**/ 238/**/
170 239
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
171#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) */
172#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) */
173#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
174/*#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 */
175 253
176#ifdef EV_H
177# include EV_H
178#else
179# include "ev.h"
180#endif
181
182#if __GNUC__ >= 3 254#if __GNUC__ >= 4
183# define expect(expr,value) __builtin_expect ((expr),(value)) 255# define expect(expr,value) __builtin_expect ((expr),(value))
184# define inline static inline 256# define noinline __attribute__ ((noinline))
185#else 257#else
186# define expect(expr,value) (expr) 258# define expect(expr,value) (expr)
187# define inline static 259# define noinline
260# if __STDC_VERSION__ < 199901L
261# define inline
262# endif
188#endif 263#endif
189 264
190#define expect_false(expr) expect ((expr) != 0, 0) 265#define expect_false(expr) expect ((expr) != 0, 0)
191#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
192 274
193#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 275#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
194#define ABSPRI(w) ((w)->priority - EV_MINPRI) 276#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
195 277
196#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 278#define EMPTY /* required for microsofts broken pseudo-c compiler */
197#define EMPTY2(a,b) /* used to suppress some warnings */ 279#define EMPTY2(a,b) /* used to suppress some warnings */
198 280
199typedef struct ev_watcher *W; 281typedef ev_watcher *W;
200typedef struct ev_watcher_list *WL; 282typedef ev_watcher_list *WL;
201typedef struct ev_watcher_time *WT; 283typedef ev_watcher_time *WT;
202 284
285/* sig_atomic_t is used to avoid per-thread variables or locking but still */
286/* giving it a reasonably high chance of working on typical architetcures */
203static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 287static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
204 288
205#ifdef _WIN32 289#ifdef _WIN32
206# include "ev_win32.c" 290# include "ev_win32.c"
207#endif 291#endif
208 292
209/*****************************************************************************/ 293/*****************************************************************************/
210 294
211static void (*syserr_cb)(const char *msg); 295static void (*syserr_cb)(const char *msg);
212 296
297void
213void ev_set_syserr_cb (void (*cb)(const char *msg)) 298ev_set_syserr_cb (void (*cb)(const char *msg))
214{ 299{
215 syserr_cb = cb; 300 syserr_cb = cb;
216} 301}
217 302
218static void 303static void noinline
219syserr (const char *msg) 304syserr (const char *msg)
220{ 305{
221 if (!msg) 306 if (!msg)
222 msg = "(libev) system error"; 307 msg = "(libev) system error";
223 308
… …
230 } 315 }
231} 316}
232 317
233static void *(*alloc)(void *ptr, long size); 318static void *(*alloc)(void *ptr, long size);
234 319
320void
235void ev_set_allocator (void *(*cb)(void *ptr, long size)) 321ev_set_allocator (void *(*cb)(void *ptr, long size))
236{ 322{
237 alloc = cb; 323 alloc = cb;
238} 324}
239 325
240static void * 326inline_speed void *
241ev_realloc (void *ptr, long size) 327ev_realloc (void *ptr, long size)
242{ 328{
243 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 329 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
244 330
245 if (!ptr && size) 331 if (!ptr && size)
… …
269typedef struct 355typedef struct
270{ 356{
271 W w; 357 W w;
272 int events; 358 int events;
273} ANPENDING; 359} ANPENDING;
360
361#if EV_USE_INOTIFY
362typedef struct
363{
364 WL head;
365} ANFS;
366#endif
274 367
275#if EV_MULTIPLICITY 368#if EV_MULTIPLICITY
276 369
277 struct ev_loop 370 struct ev_loop
278 { 371 {
… …
312 gettimeofday (&tv, 0); 405 gettimeofday (&tv, 0);
313 return tv.tv_sec + tv.tv_usec * 1e-6; 406 return tv.tv_sec + tv.tv_usec * 1e-6;
314#endif 407#endif
315} 408}
316 409
317inline ev_tstamp 410ev_tstamp inline_size
318get_clock (void) 411get_clock (void)
319{ 412{
320#if EV_USE_MONOTONIC 413#if EV_USE_MONOTONIC
321 if (expect_true (have_monotonic)) 414 if (expect_true (have_monotonic))
322 { 415 {
… …
335{ 428{
336 return ev_rt_now; 429 return ev_rt_now;
337} 430}
338#endif 431#endif
339 432
340#define array_roundsize(type,n) (((n) | 4) & ~3) 433void
434ev_sleep (ev_tstamp delay)
435{
436 if (delay > 0.)
437 {
438#if EV_USE_NANOSLEEP
439 struct timespec ts;
440
441 ts.tv_sec = (time_t)delay;
442 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
443
444 nanosleep (&ts, 0);
445#elif defined(_WIN32)
446 Sleep (delay * 1e3);
447#else
448 struct timeval tv;
449
450 tv.tv_sec = (time_t)delay;
451 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
452
453 select (0, 0, 0, 0, &tv);
454#endif
455 }
456}
457
458/*****************************************************************************/
459
460int inline_size
461array_nextsize (int elem, int cur, int cnt)
462{
463 int ncur = cur + 1;
464
465 do
466 ncur <<= 1;
467 while (cnt > ncur);
468
469 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
470 if (elem * ncur > 4096)
471 {
472 ncur *= elem;
473 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
474 ncur = ncur - sizeof (void *) * 4;
475 ncur /= elem;
476 }
477
478 return ncur;
479}
480
481static noinline void *
482array_realloc (int elem, void *base, int *cur, int cnt)
483{
484 *cur = array_nextsize (elem, *cur, cnt);
485 return ev_realloc (base, elem * *cur);
486}
341 487
342#define array_needsize(type,base,cur,cnt,init) \ 488#define array_needsize(type,base,cur,cnt,init) \
343 if (expect_false ((cnt) > cur)) \ 489 if (expect_false ((cnt) > (cur))) \
344 { \ 490 { \
345 int newcnt = cur; \ 491 int ocur_ = (cur); \
346 do \ 492 (base) = (type *)array_realloc \
347 { \ 493 (sizeof (type), (base), &(cur), (cnt)); \
348 newcnt = array_roundsize (type, newcnt << 1); \ 494 init ((base) + (ocur_), (cur) - ocur_); \
349 } \
350 while ((cnt) > newcnt); \
351 \
352 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
353 init (base + cur, newcnt - cur); \
354 cur = newcnt; \
355 } 495 }
356 496
497#if 0
357#define array_slim(type,stem) \ 498#define array_slim(type,stem) \
358 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 499 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
359 { \ 500 { \
360 stem ## max = array_roundsize (stem ## cnt >> 1); \ 501 stem ## max = array_roundsize (stem ## cnt >> 1); \
361 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 502 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
362 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 503 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
363 } 504 }
505#endif
364 506
365#define array_free(stem, idx) \ 507#define array_free(stem, idx) \
366 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 508 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
367 509
368/*****************************************************************************/ 510/*****************************************************************************/
369 511
370static void 512void noinline
513ev_feed_event (EV_P_ void *w, int revents)
514{
515 W w_ = (W)w;
516 int pri = ABSPRI (w_);
517
518 if (expect_false (w_->pending))
519 pendings [pri][w_->pending - 1].events |= revents;
520 else
521 {
522 w_->pending = ++pendingcnt [pri];
523 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
524 pendings [pri][w_->pending - 1].w = w_;
525 pendings [pri][w_->pending - 1].events = revents;
526 }
527}
528
529void inline_speed
530queue_events (EV_P_ W *events, int eventcnt, int type)
531{
532 int i;
533
534 for (i = 0; i < eventcnt; ++i)
535 ev_feed_event (EV_A_ events [i], type);
536}
537
538/*****************************************************************************/
539
540void inline_size
371anfds_init (ANFD *base, int count) 541anfds_init (ANFD *base, int count)
372{ 542{
373 while (count--) 543 while (count--)
374 { 544 {
375 base->head = 0; 545 base->head = 0;
… …
378 548
379 ++base; 549 ++base;
380 } 550 }
381} 551}
382 552
383void 553void inline_speed
384ev_feed_event (EV_P_ void *w, int revents)
385{
386 W w_ = (W)w;
387
388 if (expect_false (w_->pending))
389 {
390 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
391 return;
392 }
393
394 w_->pending = ++pendingcnt [ABSPRI (w_)];
395 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
396 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
397 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
398}
399
400static void
401queue_events (EV_P_ W *events, int eventcnt, int type)
402{
403 int i;
404
405 for (i = 0; i < eventcnt; ++i)
406 ev_feed_event (EV_A_ events [i], type);
407}
408
409inline void
410fd_event (EV_P_ int fd, int revents) 554fd_event (EV_P_ int fd, int revents)
411{ 555{
412 ANFD *anfd = anfds + fd; 556 ANFD *anfd = anfds + fd;
413 struct ev_io *w; 557 ev_io *w;
414 558
415 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 559 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
416 { 560 {
417 int ev = w->events & revents; 561 int ev = w->events & revents;
418 562
419 if (ev) 563 if (ev)
420 ev_feed_event (EV_A_ (W)w, ev); 564 ev_feed_event (EV_A_ (W)w, ev);
… …
422} 566}
423 567
424void 568void
425ev_feed_fd_event (EV_P_ int fd, int revents) 569ev_feed_fd_event (EV_P_ int fd, int revents)
426{ 570{
571 if (fd >= 0 && fd < anfdmax)
427 fd_event (EV_A_ fd, revents); 572 fd_event (EV_A_ fd, revents);
428} 573}
429 574
430/*****************************************************************************/ 575void inline_size
431
432inline void
433fd_reify (EV_P) 576fd_reify (EV_P)
434{ 577{
435 int i; 578 int i;
436 579
437 for (i = 0; i < fdchangecnt; ++i) 580 for (i = 0; i < fdchangecnt; ++i)
438 { 581 {
439 int fd = fdchanges [i]; 582 int fd = fdchanges [i];
440 ANFD *anfd = anfds + fd; 583 ANFD *anfd = anfds + fd;
441 struct ev_io *w; 584 ev_io *w;
442 585
443 int events = 0; 586 unsigned char events = 0;
444 587
445 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 588 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
446 events |= w->events; 589 events |= (unsigned char)w->events;
447 590
448#if EV_SELECT_IS_WINSOCKET 591#if EV_SELECT_IS_WINSOCKET
449 if (events) 592 if (events)
450 { 593 {
451 unsigned long argp; 594 unsigned long argp;
452 anfd->handle = _get_osfhandle (fd); 595 anfd->handle = _get_osfhandle (fd);
453 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 596 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
454 } 597 }
455#endif 598#endif
456 599
600 {
601 unsigned char o_events = anfd->events;
602 unsigned char o_reify = anfd->reify;
603
457 anfd->reify = 0; 604 anfd->reify = 0;
458
459 method_modify (EV_A_ fd, anfd->events, events);
460 anfd->events = events; 605 anfd->events = events;
606
607 if (o_events != events || o_reify & EV_IOFDSET)
608 backend_modify (EV_A_ fd, o_events, events);
609 }
461 } 610 }
462 611
463 fdchangecnt = 0; 612 fdchangecnt = 0;
464} 613}
465 614
466static void 615void inline_size
467fd_change (EV_P_ int fd) 616fd_change (EV_P_ int fd, int flags)
468{ 617{
469 if (expect_false (anfds [fd].reify)) 618 unsigned char reify = anfds [fd].reify;
470 return;
471
472 anfds [fd].reify = 1; 619 anfds [fd].reify |= flags;
473 620
621 if (expect_true (!reify))
622 {
474 ++fdchangecnt; 623 ++fdchangecnt;
475 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 624 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
476 fdchanges [fdchangecnt - 1] = fd; 625 fdchanges [fdchangecnt - 1] = fd;
626 }
477} 627}
478 628
479static void 629void inline_speed
480fd_kill (EV_P_ int fd) 630fd_kill (EV_P_ int fd)
481{ 631{
482 struct ev_io *w; 632 ev_io *w;
483 633
484 while ((w = (struct ev_io *)anfds [fd].head)) 634 while ((w = (ev_io *)anfds [fd].head))
485 { 635 {
486 ev_io_stop (EV_A_ w); 636 ev_io_stop (EV_A_ w);
487 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 637 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
488 } 638 }
489} 639}
490 640
491inline int 641int inline_size
492fd_valid (int fd) 642fd_valid (int fd)
493{ 643{
494#ifdef _WIN32 644#ifdef _WIN32
495 return _get_osfhandle (fd) != -1; 645 return _get_osfhandle (fd) != -1;
496#else 646#else
497 return fcntl (fd, F_GETFD) != -1; 647 return fcntl (fd, F_GETFD) != -1;
498#endif 648#endif
499} 649}
500 650
501/* called on EBADF to verify fds */ 651/* called on EBADF to verify fds */
502static void 652static void noinline
503fd_ebadf (EV_P) 653fd_ebadf (EV_P)
504{ 654{
505 int fd; 655 int fd;
506 656
507 for (fd = 0; fd < anfdmax; ++fd) 657 for (fd = 0; fd < anfdmax; ++fd)
… …
509 if (!fd_valid (fd) == -1 && errno == EBADF) 659 if (!fd_valid (fd) == -1 && errno == EBADF)
510 fd_kill (EV_A_ fd); 660 fd_kill (EV_A_ fd);
511} 661}
512 662
513/* called on ENOMEM in select/poll to kill some fds and retry */ 663/* called on ENOMEM in select/poll to kill some fds and retry */
514static void 664static void noinline
515fd_enomem (EV_P) 665fd_enomem (EV_P)
516{ 666{
517 int fd; 667 int fd;
518 668
519 for (fd = anfdmax; fd--; ) 669 for (fd = anfdmax; fd--; )
… …
522 fd_kill (EV_A_ fd); 672 fd_kill (EV_A_ fd);
523 return; 673 return;
524 } 674 }
525} 675}
526 676
527/* usually called after fork if method needs to re-arm all fds from scratch */ 677/* usually called after fork if backend needs to re-arm all fds from scratch */
528static void 678static void noinline
529fd_rearm_all (EV_P) 679fd_rearm_all (EV_P)
530{ 680{
531 int fd; 681 int fd;
532 682
533 /* this should be highly optimised to not do anything but set a flag */
534 for (fd = 0; fd < anfdmax; ++fd) 683 for (fd = 0; fd < anfdmax; ++fd)
535 if (anfds [fd].events) 684 if (anfds [fd].events)
536 { 685 {
537 anfds [fd].events = 0; 686 anfds [fd].events = 0;
538 fd_change (EV_A_ fd); 687 fd_change (EV_A_ fd, EV_IOFDSET | 1);
539 } 688 }
540} 689}
541 690
542/*****************************************************************************/ 691/*****************************************************************************/
543 692
544static void 693void inline_speed
545upheap (WT *heap, int k) 694upheap (WT *heap, int k)
546{ 695{
547 WT w = heap [k]; 696 WT w = heap [k];
548 697
549 while (k && heap [k >> 1]->at > w->at) 698 while (k)
550 { 699 {
700 int p = (k - 1) >> 1;
701
702 if (heap [p]->at <= w->at)
703 break;
704
551 heap [k] = heap [k >> 1]; 705 heap [k] = heap [p];
552 ((W)heap [k])->active = k + 1; 706 ((W)heap [k])->active = k + 1;
553 k >>= 1; 707 k = p;
554 } 708 }
555 709
556 heap [k] = w; 710 heap [k] = w;
557 ((W)heap [k])->active = k + 1; 711 ((W)heap [k])->active = k + 1;
558
559} 712}
560 713
561static void 714void inline_speed
562downheap (WT *heap, int N, int k) 715downheap (WT *heap, int N, int k)
563{ 716{
564 WT w = heap [k]; 717 WT w = heap [k];
565 718
566 while (k < (N >> 1)) 719 for (;;)
567 { 720 {
568 int j = k << 1; 721 int c = (k << 1) + 1;
569 722
570 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 723 if (c >= N)
571 ++j;
572
573 if (w->at <= heap [j]->at)
574 break; 724 break;
575 725
726 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
727 ? 1 : 0;
728
729 if (w->at <= heap [c]->at)
730 break;
731
576 heap [k] = heap [j]; 732 heap [k] = heap [c];
577 ((W)heap [k])->active = k + 1; 733 ((W)heap [k])->active = k + 1;
734
578 k = j; 735 k = c;
579 } 736 }
580 737
581 heap [k] = w; 738 heap [k] = w;
582 ((W)heap [k])->active = k + 1; 739 ((W)heap [k])->active = k + 1;
583} 740}
584 741
585inline void 742void inline_size
586adjustheap (WT *heap, int N, int k) 743adjustheap (WT *heap, int N, int k)
587{ 744{
588 upheap (heap, k); 745 upheap (heap, k);
589 downheap (heap, N, k); 746 downheap (heap, N, k);
590} 747}
… …
600static ANSIG *signals; 757static ANSIG *signals;
601static int signalmax; 758static int signalmax;
602 759
603static int sigpipe [2]; 760static int sigpipe [2];
604static sig_atomic_t volatile gotsig; 761static sig_atomic_t volatile gotsig;
605static struct ev_io sigev; 762static ev_io sigev;
606 763
607static void 764void inline_size
608signals_init (ANSIG *base, int count) 765signals_init (ANSIG *base, int count)
609{ 766{
610 while (count--) 767 while (count--)
611 { 768 {
612 base->head = 0; 769 base->head = 0;
… …
632 write (sigpipe [1], &signum, 1); 789 write (sigpipe [1], &signum, 1);
633 errno = old_errno; 790 errno = old_errno;
634 } 791 }
635} 792}
636 793
637void 794void noinline
638ev_feed_signal_event (EV_P_ int signum) 795ev_feed_signal_event (EV_P_ int signum)
639{ 796{
640 WL w; 797 WL w;
641 798
642#if EV_MULTIPLICITY 799#if EV_MULTIPLICITY
… …
653 for (w = signals [signum].head; w; w = w->next) 810 for (w = signals [signum].head; w; w = w->next)
654 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 811 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
655} 812}
656 813
657static void 814static void
658sigcb (EV_P_ struct ev_io *iow, int revents) 815sigcb (EV_P_ ev_io *iow, int revents)
659{ 816{
660 int signum; 817 int signum;
661 818
662 read (sigpipe [0], &revents, 1); 819 read (sigpipe [0], &revents, 1);
663 gotsig = 0; 820 gotsig = 0;
… …
665 for (signum = signalmax; signum--; ) 822 for (signum = signalmax; signum--; )
666 if (signals [signum].gotsig) 823 if (signals [signum].gotsig)
667 ev_feed_signal_event (EV_A_ signum + 1); 824 ev_feed_signal_event (EV_A_ signum + 1);
668} 825}
669 826
670static void 827void inline_speed
671fd_intern (int fd) 828fd_intern (int fd)
672{ 829{
673#ifdef _WIN32 830#ifdef _WIN32
674 int arg = 1; 831 int arg = 1;
675 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 832 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
677 fcntl (fd, F_SETFD, FD_CLOEXEC); 834 fcntl (fd, F_SETFD, FD_CLOEXEC);
678 fcntl (fd, F_SETFL, O_NONBLOCK); 835 fcntl (fd, F_SETFL, O_NONBLOCK);
679#endif 836#endif
680} 837}
681 838
682static void 839static void noinline
683siginit (EV_P) 840siginit (EV_P)
684{ 841{
685 fd_intern (sigpipe [0]); 842 fd_intern (sigpipe [0]);
686 fd_intern (sigpipe [1]); 843 fd_intern (sigpipe [1]);
687 844
… …
690 ev_unref (EV_A); /* child watcher should not keep loop alive */ 847 ev_unref (EV_A); /* child watcher should not keep loop alive */
691} 848}
692 849
693/*****************************************************************************/ 850/*****************************************************************************/
694 851
695static struct ev_child *childs [PID_HASHSIZE]; 852static WL childs [EV_PID_HASHSIZE];
696 853
697#ifndef _WIN32 854#ifndef _WIN32
698 855
699static struct ev_signal childev; 856static ev_signal childev;
857
858void inline_speed
859child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
860{
861 ev_child *w;
862
863 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
864 if (w->pid == pid || !w->pid)
865 {
866 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
867 w->rpid = pid;
868 w->rstatus = status;
869 ev_feed_event (EV_A_ (W)w, EV_CHILD);
870 }
871}
700 872
701#ifndef WCONTINUED 873#ifndef WCONTINUED
702# define WCONTINUED 0 874# define WCONTINUED 0
703#endif 875#endif
704 876
705static void 877static void
706child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
707{
708 struct ev_child *w;
709
710 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
711 if (w->pid == pid || !w->pid)
712 {
713 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
714 w->rpid = pid;
715 w->rstatus = status;
716 ev_feed_event (EV_A_ (W)w, EV_CHILD);
717 }
718}
719
720static void
721childcb (EV_P_ struct ev_signal *sw, int revents) 878childcb (EV_P_ ev_signal *sw, int revents)
722{ 879{
723 int pid, status; 880 int pid, status;
724 881
882 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
725 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 883 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
726 { 884 if (!WCONTINUED
885 || errno != EINVAL
886 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
887 return;
888
727 /* make sure we are called again until all childs have been reaped */ 889 /* make sure we are called again until all childs have been reaped */
890 /* we need to do it this way so that the callback gets called before we continue */
728 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 891 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
729 892
730 child_reap (EV_A_ sw, pid, pid, status); 893 child_reap (EV_A_ sw, pid, pid, status);
894 if (EV_PID_HASHSIZE > 1)
731 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 895 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
732 }
733} 896}
734 897
735#endif 898#endif
736 899
737/*****************************************************************************/ 900/*****************************************************************************/
… …
763{ 926{
764 return EV_VERSION_MINOR; 927 return EV_VERSION_MINOR;
765} 928}
766 929
767/* return true if we are running with elevated privileges and should ignore env variables */ 930/* return true if we are running with elevated privileges and should ignore env variables */
768static int 931int inline_size
769enable_secure (void) 932enable_secure (void)
770{ 933{
771#ifdef _WIN32 934#ifdef _WIN32
772 return 0; 935 return 0;
773#else 936#else
… …
775 || getgid () != getegid (); 938 || getgid () != getegid ();
776#endif 939#endif
777} 940}
778 941
779unsigned int 942unsigned int
780ev_method (EV_P) 943ev_supported_backends (void)
781{ 944{
782 return method; 945 unsigned int flags = 0;
783}
784 946
785static void 947 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
948 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
949 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
950 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
951 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
952
953 return flags;
954}
955
956unsigned int
957ev_recommended_backends (void)
958{
959 unsigned int flags = ev_supported_backends ();
960
961#ifndef __NetBSD__
962 /* kqueue is borked on everything but netbsd apparently */
963 /* it usually doesn't work correctly on anything but sockets and pipes */
964 flags &= ~EVBACKEND_KQUEUE;
965#endif
966#ifdef __APPLE__
967 // flags &= ~EVBACKEND_KQUEUE; for documentation
968 flags &= ~EVBACKEND_POLL;
969#endif
970
971 return flags;
972}
973
974unsigned int
975ev_embeddable_backends (void)
976{
977 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
978
979 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
980 /* please fix it and tell me how to detect the fix */
981 flags &= ~EVBACKEND_EPOLL;
982
983#ifdef __APPLE__
984 /* is there anything thats not broken on darwin? */
985 flags &= ~EVBACKEND_KQUEUE;
986#endif
987
988 return flags;
989}
990
991unsigned int
992ev_backend (EV_P)
993{
994 return backend;
995}
996
997unsigned int
998ev_loop_count (EV_P)
999{
1000 return loop_count;
1001}
1002
1003void
1004ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1005{
1006 io_blocktime = interval;
1007}
1008
1009void
1010ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1011{
1012 timeout_blocktime = interval;
1013}
1014
1015static void noinline
786loop_init (EV_P_ unsigned int flags) 1016loop_init (EV_P_ unsigned int flags)
787{ 1017{
788 if (!method) 1018 if (!backend)
789 { 1019 {
790#if EV_USE_MONOTONIC 1020#if EV_USE_MONOTONIC
791 { 1021 {
792 struct timespec ts; 1022 struct timespec ts;
793 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1023 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
798 ev_rt_now = ev_time (); 1028 ev_rt_now = ev_time ();
799 mn_now = get_clock (); 1029 mn_now = get_clock ();
800 now_floor = mn_now; 1030 now_floor = mn_now;
801 rtmn_diff = ev_rt_now - mn_now; 1031 rtmn_diff = ev_rt_now - mn_now;
802 1032
803 if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) 1033 io_blocktime = 0.;
1034 timeout_blocktime = 0.;
1035
1036 /* pid check not overridable via env */
1037#ifndef _WIN32
1038 if (flags & EVFLAG_FORKCHECK)
1039 curpid = getpid ();
1040#endif
1041
1042 if (!(flags & EVFLAG_NOENV)
1043 && !enable_secure ()
1044 && getenv ("LIBEV_FLAGS"))
804 flags = atoi (getenv ("LIBEV_FLAGS")); 1045 flags = atoi (getenv ("LIBEV_FLAGS"));
805 1046
806 if (!(flags & 0x0000ffff)) 1047 if (!(flags & 0x0000ffffUL))
807 flags |= 0x0000ffff; 1048 flags |= ev_recommended_backends ();
808 1049
809 method = 0; 1050 backend = 0;
1051 backend_fd = -1;
1052#if EV_USE_INOTIFY
1053 fs_fd = -2;
1054#endif
1055
810#if EV_USE_PORT 1056#if EV_USE_PORT
811 if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); 1057 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
812#endif 1058#endif
813#if EV_USE_KQUEUE 1059#if EV_USE_KQUEUE
814 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 1060 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
815#endif 1061#endif
816#if EV_USE_EPOLL 1062#if EV_USE_EPOLL
817 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 1063 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
818#endif 1064#endif
819#if EV_USE_POLL 1065#if EV_USE_POLL
820 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 1066 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
821#endif 1067#endif
822#if EV_USE_SELECT 1068#if EV_USE_SELECT
823 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 1069 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
824#endif 1070#endif
825 1071
826 ev_init (&sigev, sigcb); 1072 ev_init (&sigev, sigcb);
827 ev_set_priority (&sigev, EV_MAXPRI); 1073 ev_set_priority (&sigev, EV_MAXPRI);
828 } 1074 }
829} 1075}
830 1076
831static void 1077static void noinline
832loop_destroy (EV_P) 1078loop_destroy (EV_P)
833{ 1079{
834 int i; 1080 int i;
835 1081
1082#if EV_USE_INOTIFY
1083 if (fs_fd >= 0)
1084 close (fs_fd);
1085#endif
1086
1087 if (backend_fd >= 0)
1088 close (backend_fd);
1089
836#if EV_USE_PORT 1090#if EV_USE_PORT
837 if (method == EVMETHOD_PORT ) port_destroy (EV_A); 1091 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
838#endif 1092#endif
839#if EV_USE_KQUEUE 1093#if EV_USE_KQUEUE
840 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1094 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
841#endif 1095#endif
842#if EV_USE_EPOLL 1096#if EV_USE_EPOLL
843 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1097 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
844#endif 1098#endif
845#if EV_USE_POLL 1099#if EV_USE_POLL
846 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1100 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
847#endif 1101#endif
848#if EV_USE_SELECT 1102#if EV_USE_SELECT
849 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1103 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
850#endif 1104#endif
851 1105
852 for (i = NUMPRI; i--; ) 1106 for (i = NUMPRI; i--; )
1107 {
853 array_free (pending, [i]); 1108 array_free (pending, [i]);
1109#if EV_IDLE_ENABLE
1110 array_free (idle, [i]);
1111#endif
1112 }
1113
1114 ev_free (anfds); anfdmax = 0;
854 1115
855 /* have to use the microsoft-never-gets-it-right macro */ 1116 /* have to use the microsoft-never-gets-it-right macro */
856 array_free (fdchange, EMPTY0); 1117 array_free (fdchange, EMPTY);
857 array_free (timer, EMPTY0); 1118 array_free (timer, EMPTY);
858#if EV_PERIODICS 1119#if EV_PERIODIC_ENABLE
859 array_free (periodic, EMPTY0); 1120 array_free (periodic, EMPTY);
860#endif 1121#endif
1122#if EV_FORK_ENABLE
861 array_free (idle, EMPTY0); 1123 array_free (fork, EMPTY);
1124#endif
862 array_free (prepare, EMPTY0); 1125 array_free (prepare, EMPTY);
863 array_free (check, EMPTY0); 1126 array_free (check, EMPTY);
864 1127
865 method = 0; 1128 backend = 0;
866} 1129}
867 1130
868static void 1131void inline_size infy_fork (EV_P);
1132
1133void inline_size
869loop_fork (EV_P) 1134loop_fork (EV_P)
870{ 1135{
871#if EV_USE_PORT 1136#if EV_USE_PORT
872 if (method == EVMETHOD_PORT ) port_fork (EV_A); 1137 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
873#endif 1138#endif
874#if EV_USE_KQUEUE 1139#if EV_USE_KQUEUE
875 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1140 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
876#endif 1141#endif
877#if EV_USE_EPOLL 1142#if EV_USE_EPOLL
878 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1143 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
1144#endif
1145#if EV_USE_INOTIFY
1146 infy_fork (EV_A);
879#endif 1147#endif
880 1148
881 if (ev_is_active (&sigev)) 1149 if (ev_is_active (&sigev))
882 { 1150 {
883 /* default loop */ 1151 /* default loop */
… …
904 1172
905 memset (loop, 0, sizeof (struct ev_loop)); 1173 memset (loop, 0, sizeof (struct ev_loop));
906 1174
907 loop_init (EV_A_ flags); 1175 loop_init (EV_A_ flags);
908 1176
909 if (ev_method (EV_A)) 1177 if (ev_backend (EV_A))
910 return loop; 1178 return loop;
911 1179
912 return 0; 1180 return 0;
913} 1181}
914 1182
… …
947 ev_default_loop_ptr = 1; 1215 ev_default_loop_ptr = 1;
948#endif 1216#endif
949 1217
950 loop_init (EV_A_ flags); 1218 loop_init (EV_A_ flags);
951 1219
952 if (ev_method (EV_A)) 1220 if (ev_backend (EV_A))
953 { 1221 {
954 siginit (EV_A); 1222 siginit (EV_A);
955 1223
956#ifndef _WIN32 1224#ifndef _WIN32
957 ev_signal_init (&childev, childcb, SIGCHLD); 1225 ev_signal_init (&childev, childcb, SIGCHLD);
… …
993{ 1261{
994#if EV_MULTIPLICITY 1262#if EV_MULTIPLICITY
995 struct ev_loop *loop = ev_default_loop_ptr; 1263 struct ev_loop *loop = ev_default_loop_ptr;
996#endif 1264#endif
997 1265
998 if (method) 1266 if (backend)
999 postfork = 1; 1267 postfork = 1;
1000} 1268}
1001 1269
1002/*****************************************************************************/ 1270/*****************************************************************************/
1003 1271
1004static int 1272void
1005any_pending (EV_P) 1273ev_invoke (EV_P_ void *w, int revents)
1006{ 1274{
1007 int pri; 1275 EV_CB_INVOKE ((W)w, revents);
1008
1009 for (pri = NUMPRI; pri--; )
1010 if (pendingcnt [pri])
1011 return 1;
1012
1013 return 0;
1014} 1276}
1015 1277
1016inline void 1278void inline_speed
1017call_pending (EV_P) 1279call_pending (EV_P)
1018{ 1280{
1019 int pri; 1281 int pri;
1020 1282
1021 for (pri = NUMPRI; pri--; ) 1283 for (pri = NUMPRI; pri--; )
… …
1023 { 1285 {
1024 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1286 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1025 1287
1026 if (expect_true (p->w)) 1288 if (expect_true (p->w))
1027 { 1289 {
1290 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1291
1028 p->w->pending = 0; 1292 p->w->pending = 0;
1029 EV_CB_INVOKE (p->w, p->events); 1293 EV_CB_INVOKE (p->w, p->events);
1030 } 1294 }
1031 } 1295 }
1032} 1296}
1033 1297
1034inline void 1298void inline_size
1035timers_reify (EV_P) 1299timers_reify (EV_P)
1036{ 1300{
1037 while (timercnt && ((WT)timers [0])->at <= mn_now) 1301 while (timercnt && ((WT)timers [0])->at <= mn_now)
1038 { 1302 {
1039 struct ev_timer *w = timers [0]; 1303 ev_timer *w = (ev_timer *)timers [0];
1040 1304
1041 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1305 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1042 1306
1043 /* first reschedule or stop timer */ 1307 /* first reschedule or stop timer */
1044 if (w->repeat) 1308 if (w->repeat)
1045 { 1309 {
1046 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1310 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1047 1311
1048 ((WT)w)->at += w->repeat; 1312 ((WT)w)->at += w->repeat;
1049 if (((WT)w)->at < mn_now) 1313 if (((WT)w)->at < mn_now)
1050 ((WT)w)->at = mn_now; 1314 ((WT)w)->at = mn_now;
1051 1315
1052 downheap ((WT *)timers, timercnt, 0); 1316 downheap (timers, timercnt, 0);
1053 } 1317 }
1054 else 1318 else
1055 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1319 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1056 1320
1057 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1321 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1058 } 1322 }
1059} 1323}
1060 1324
1061#if EV_PERIODICS 1325#if EV_PERIODIC_ENABLE
1062inline void 1326void inline_size
1063periodics_reify (EV_P) 1327periodics_reify (EV_P)
1064{ 1328{
1065 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1329 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1066 { 1330 {
1067 struct ev_periodic *w = periodics [0]; 1331 ev_periodic *w = (ev_periodic *)periodics [0];
1068 1332
1069 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1333 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1070 1334
1071 /* first reschedule or stop timer */ 1335 /* first reschedule or stop timer */
1072 if (w->reschedule_cb) 1336 if (w->reschedule_cb)
1073 { 1337 {
1074 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1338 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1075 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1339 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1076 downheap ((WT *)periodics, periodiccnt, 0); 1340 downheap (periodics, periodiccnt, 0);
1077 } 1341 }
1078 else if (w->interval) 1342 else if (w->interval)
1079 { 1343 {
1080 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1344 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1345 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1081 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1346 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1082 downheap ((WT *)periodics, periodiccnt, 0); 1347 downheap (periodics, periodiccnt, 0);
1083 } 1348 }
1084 else 1349 else
1085 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1350 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1086 1351
1087 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1352 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1088 } 1353 }
1089} 1354}
1090 1355
1091static void 1356static void noinline
1092periodics_reschedule (EV_P) 1357periodics_reschedule (EV_P)
1093{ 1358{
1094 int i; 1359 int i;
1095 1360
1096 /* adjust periodics after time jump */ 1361 /* adjust periodics after time jump */
1097 for (i = 0; i < periodiccnt; ++i) 1362 for (i = 0; i < periodiccnt; ++i)
1098 { 1363 {
1099 struct ev_periodic *w = periodics [i]; 1364 ev_periodic *w = (ev_periodic *)periodics [i];
1100 1365
1101 if (w->reschedule_cb) 1366 if (w->reschedule_cb)
1102 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1367 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1103 else if (w->interval) 1368 else if (w->interval)
1104 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1369 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1105 } 1370 }
1106 1371
1107 /* now rebuild the heap */ 1372 /* now rebuild the heap */
1108 for (i = periodiccnt >> 1; i--; ) 1373 for (i = periodiccnt >> 1; i--; )
1109 downheap ((WT *)periodics, periodiccnt, i); 1374 downheap (periodics, periodiccnt, i);
1110} 1375}
1111#endif 1376#endif
1112 1377
1113inline int 1378#if EV_IDLE_ENABLE
1114time_update_monotonic (EV_P) 1379void inline_size
1380idle_reify (EV_P)
1115{ 1381{
1382 if (expect_false (idleall))
1383 {
1384 int pri;
1385
1386 for (pri = NUMPRI; pri--; )
1387 {
1388 if (pendingcnt [pri])
1389 break;
1390
1391 if (idlecnt [pri])
1392 {
1393 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1394 break;
1395 }
1396 }
1397 }
1398}
1399#endif
1400
1401void inline_speed
1402time_update (EV_P_ ev_tstamp max_block)
1403{
1404 int i;
1405
1406#if EV_USE_MONOTONIC
1407 if (expect_true (have_monotonic))
1408 {
1409 ev_tstamp odiff = rtmn_diff;
1410
1116 mn_now = get_clock (); 1411 mn_now = get_clock ();
1117 1412
1413 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1414 /* interpolate in the meantime */
1118 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1415 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1119 { 1416 {
1120 ev_rt_now = rtmn_diff + mn_now; 1417 ev_rt_now = rtmn_diff + mn_now;
1121 return 0; 1418 return;
1122 } 1419 }
1123 else 1420
1124 {
1125 now_floor = mn_now; 1421 now_floor = mn_now;
1126 ev_rt_now = ev_time (); 1422 ev_rt_now = ev_time ();
1127 return 1;
1128 }
1129}
1130 1423
1131inline void 1424 /* loop a few times, before making important decisions.
1132time_update (EV_P) 1425 * on the choice of "4": one iteration isn't enough,
1133{ 1426 * in case we get preempted during the calls to
1134 int i; 1427 * ev_time and get_clock. a second call is almost guaranteed
1135 1428 * to succeed in that case, though. and looping a few more times
1136#if EV_USE_MONOTONIC 1429 * doesn't hurt either as we only do this on time-jumps or
1137 if (expect_true (have_monotonic)) 1430 * in the unlikely event of having been preempted here.
1138 { 1431 */
1139 if (time_update_monotonic (EV_A)) 1432 for (i = 4; --i; )
1140 { 1433 {
1141 ev_tstamp odiff = rtmn_diff;
1142
1143 for (i = 4; --i; ) /* loop a few times, before making important decisions */
1144 {
1145 rtmn_diff = ev_rt_now - mn_now; 1434 rtmn_diff = ev_rt_now - mn_now;
1146 1435
1147 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1436 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1148 return; /* all is well */ 1437 return; /* all is well */
1149 1438
1150 ev_rt_now = ev_time (); 1439 ev_rt_now = ev_time ();
1151 mn_now = get_clock (); 1440 mn_now = get_clock ();
1152 now_floor = mn_now; 1441 now_floor = mn_now;
1153 } 1442 }
1154 1443
1155# if EV_PERIODICS 1444# if EV_PERIODIC_ENABLE
1445 periodics_reschedule (EV_A);
1446# endif
1447 /* no timer adjustment, as the monotonic clock doesn't jump */
1448 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1449 }
1450 else
1451#endif
1452 {
1453 ev_rt_now = ev_time ();
1454
1455 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1456 {
1457#if EV_PERIODIC_ENABLE
1156 periodics_reschedule (EV_A); 1458 periodics_reschedule (EV_A);
1157# endif 1459#endif
1158 /* no timer adjustment, as the monotonic clock doesn't jump */
1159 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1160 }
1161 }
1162 else
1163#endif
1164 {
1165 ev_rt_now = ev_time ();
1166
1167 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1168 {
1169#if EV_PERIODICS
1170 periodics_reschedule (EV_A);
1171#endif
1172
1173 /* adjust timers. this is easy, as the offset is the same for all */ 1460 /* adjust timers. this is easy, as the offset is the same for all of them */
1174 for (i = 0; i < timercnt; ++i) 1461 for (i = 0; i < timercnt; ++i)
1175 ((WT)timers [i])->at += ev_rt_now - mn_now; 1462 ((WT)timers [i])->at += ev_rt_now - mn_now;
1176 } 1463 }
1177 1464
1178 mn_now = ev_rt_now; 1465 mn_now = ev_rt_now;
… …
1194static int loop_done; 1481static int loop_done;
1195 1482
1196void 1483void
1197ev_loop (EV_P_ int flags) 1484ev_loop (EV_P_ int flags)
1198{ 1485{
1199 double block;
1200 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1486 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1487 ? EVUNLOOP_ONE
1488 : EVUNLOOP_CANCEL;
1201 1489
1202 while (activecnt) 1490 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1491
1492 do
1203 { 1493 {
1494#ifndef _WIN32
1495 if (expect_false (curpid)) /* penalise the forking check even more */
1496 if (expect_false (getpid () != curpid))
1497 {
1498 curpid = getpid ();
1499 postfork = 1;
1500 }
1501#endif
1502
1503#if EV_FORK_ENABLE
1504 /* we might have forked, so queue fork handlers */
1505 if (expect_false (postfork))
1506 if (forkcnt)
1507 {
1508 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1509 call_pending (EV_A);
1510 }
1511#endif
1512
1204 /* queue check watchers (and execute them) */ 1513 /* queue prepare watchers (and execute them) */
1205 if (expect_false (preparecnt)) 1514 if (expect_false (preparecnt))
1206 { 1515 {
1207 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1516 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1208 call_pending (EV_A); 1517 call_pending (EV_A);
1209 } 1518 }
1210 1519
1520 if (expect_false (!activecnt))
1521 break;
1522
1211 /* we might have forked, so reify kernel state if necessary */ 1523 /* we might have forked, so reify kernel state if necessary */
1212 if (expect_false (postfork)) 1524 if (expect_false (postfork))
1213 loop_fork (EV_A); 1525 loop_fork (EV_A);
1214 1526
1215 /* update fd-related kernel structures */ 1527 /* update fd-related kernel structures */
1216 fd_reify (EV_A); 1528 fd_reify (EV_A);
1217 1529
1218 /* calculate blocking time */ 1530 /* calculate blocking time */
1531 {
1532 ev_tstamp waittime = 0.;
1533 ev_tstamp sleeptime = 0.;
1219 1534
1220 /* we only need this for !monotonic clock or timers, but as we basically 1535 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1221 always have timers, we just calculate it always */
1222#if EV_USE_MONOTONIC
1223 if (expect_true (have_monotonic))
1224 time_update_monotonic (EV_A);
1225 else
1226#endif
1227 { 1536 {
1228 ev_rt_now = ev_time (); 1537 /* update time to cancel out callback processing overhead */
1229 mn_now = ev_rt_now; 1538 time_update (EV_A_ 1e100);
1230 }
1231 1539
1232 if (flags & EVLOOP_NONBLOCK || idlecnt)
1233 block = 0.;
1234 else
1235 {
1236 block = MAX_BLOCKTIME; 1540 waittime = MAX_BLOCKTIME;
1237 1541
1238 if (timercnt) 1542 if (timercnt)
1239 { 1543 {
1240 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1544 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1241 if (block > to) block = to; 1545 if (waittime > to) waittime = to;
1242 } 1546 }
1243 1547
1244#if EV_PERIODICS 1548#if EV_PERIODIC_ENABLE
1245 if (periodiccnt) 1549 if (periodiccnt)
1246 { 1550 {
1247 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1551 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1248 if (block > to) block = to; 1552 if (waittime > to) waittime = to;
1249 } 1553 }
1250#endif 1554#endif
1251 1555
1252 if (expect_false (block < 0.)) block = 0.; 1556 if (expect_false (waittime < timeout_blocktime))
1557 waittime = timeout_blocktime;
1558
1559 sleeptime = waittime - backend_fudge;
1560
1561 if (expect_true (sleeptime > io_blocktime))
1562 sleeptime = io_blocktime;
1563
1564 if (sleeptime)
1565 {
1566 ev_sleep (sleeptime);
1567 waittime -= sleeptime;
1568 }
1253 } 1569 }
1254 1570
1255 method_poll (EV_A_ block); 1571 ++loop_count;
1572 backend_poll (EV_A_ waittime);
1256 1573
1257 /* update ev_rt_now, do magic */ 1574 /* update ev_rt_now, do magic */
1258 time_update (EV_A); 1575 time_update (EV_A_ waittime + sleeptime);
1576 }
1259 1577
1260 /* queue pending timers and reschedule them */ 1578 /* queue pending timers and reschedule them */
1261 timers_reify (EV_A); /* relative timers called last */ 1579 timers_reify (EV_A); /* relative timers called last */
1262#if EV_PERIODICS 1580#if EV_PERIODIC_ENABLE
1263 periodics_reify (EV_A); /* absolute timers called first */ 1581 periodics_reify (EV_A); /* absolute timers called first */
1264#endif 1582#endif
1265 1583
1584#if EV_IDLE_ENABLE
1266 /* queue idle watchers unless io or timers are pending */ 1585 /* queue idle watchers unless other events are pending */
1267 if (idlecnt && !any_pending (EV_A)) 1586 idle_reify (EV_A);
1268 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1587#endif
1269 1588
1270 /* queue check watchers, to be executed first */ 1589 /* queue check watchers, to be executed first */
1271 if (expect_false (checkcnt)) 1590 if (expect_false (checkcnt))
1272 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1591 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1273 1592
1274 call_pending (EV_A); 1593 call_pending (EV_A);
1275 1594
1276 if (expect_false (loop_done))
1277 break;
1278 } 1595 }
1596 while (expect_true (activecnt && !loop_done));
1279 1597
1280 if (loop_done != 2) 1598 if (loop_done == EVUNLOOP_ONE)
1281 loop_done = 0; 1599 loop_done = EVUNLOOP_CANCEL;
1282} 1600}
1283 1601
1284void 1602void
1285ev_unloop (EV_P_ int how) 1603ev_unloop (EV_P_ int how)
1286{ 1604{
1287 loop_done = how; 1605 loop_done = how;
1288} 1606}
1289 1607
1290/*****************************************************************************/ 1608/*****************************************************************************/
1291 1609
1292inline void 1610void inline_size
1293wlist_add (WL *head, WL elem) 1611wlist_add (WL *head, WL elem)
1294{ 1612{
1295 elem->next = *head; 1613 elem->next = *head;
1296 *head = elem; 1614 *head = elem;
1297} 1615}
1298 1616
1299inline void 1617void inline_size
1300wlist_del (WL *head, WL elem) 1618wlist_del (WL *head, WL elem)
1301{ 1619{
1302 while (*head) 1620 while (*head)
1303 { 1621 {
1304 if (*head == elem) 1622 if (*head == elem)
… …
1309 1627
1310 head = &(*head)->next; 1628 head = &(*head)->next;
1311 } 1629 }
1312} 1630}
1313 1631
1314inline void 1632void inline_speed
1315ev_clear_pending (EV_P_ W w) 1633clear_pending (EV_P_ W w)
1316{ 1634{
1317 if (w->pending) 1635 if (w->pending)
1318 { 1636 {
1319 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1637 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1320 w->pending = 0; 1638 w->pending = 0;
1321 } 1639 }
1322} 1640}
1323 1641
1324inline void 1642int
1643ev_clear_pending (EV_P_ void *w)
1644{
1645 W w_ = (W)w;
1646 int pending = w_->pending;
1647
1648 if (expect_true (pending))
1649 {
1650 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1651 w_->pending = 0;
1652 p->w = 0;
1653 return p->events;
1654 }
1655 else
1656 return 0;
1657}
1658
1659void inline_size
1660pri_adjust (EV_P_ W w)
1661{
1662 int pri = w->priority;
1663 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1664 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1665 w->priority = pri;
1666}
1667
1668void inline_speed
1325ev_start (EV_P_ W w, int active) 1669ev_start (EV_P_ W w, int active)
1326{ 1670{
1327 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1671 pri_adjust (EV_A_ w);
1328 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1329
1330 w->active = active; 1672 w->active = active;
1331 ev_ref (EV_A); 1673 ev_ref (EV_A);
1332} 1674}
1333 1675
1334inline void 1676void inline_size
1335ev_stop (EV_P_ W w) 1677ev_stop (EV_P_ W w)
1336{ 1678{
1337 ev_unref (EV_A); 1679 ev_unref (EV_A);
1338 w->active = 0; 1680 w->active = 0;
1339} 1681}
1340 1682
1341/*****************************************************************************/ 1683/*****************************************************************************/
1342 1684
1343void 1685void noinline
1344ev_io_start (EV_P_ struct ev_io *w) 1686ev_io_start (EV_P_ ev_io *w)
1345{ 1687{
1346 int fd = w->fd; 1688 int fd = w->fd;
1347 1689
1348 if (expect_false (ev_is_active (w))) 1690 if (expect_false (ev_is_active (w)))
1349 return; 1691 return;
1350 1692
1351 assert (("ev_io_start called with negative fd", fd >= 0)); 1693 assert (("ev_io_start called with negative fd", fd >= 0));
1352 1694
1353 ev_start (EV_A_ (W)w, 1); 1695 ev_start (EV_A_ (W)w, 1);
1354 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1696 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1355 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1697 wlist_add (&anfds[fd].head, (WL)w);
1356 1698
1357 fd_change (EV_A_ fd); 1699 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1700 w->events &= ~EV_IOFDSET;
1358} 1701}
1359 1702
1360void 1703void noinline
1361ev_io_stop (EV_P_ struct ev_io *w) 1704ev_io_stop (EV_P_ ev_io *w)
1362{ 1705{
1363 ev_clear_pending (EV_A_ (W)w); 1706 clear_pending (EV_A_ (W)w);
1364 if (expect_false (!ev_is_active (w))) 1707 if (expect_false (!ev_is_active (w)))
1365 return; 1708 return;
1366 1709
1367 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1710 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1368 1711
1369 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1712 wlist_del (&anfds[w->fd].head, (WL)w);
1370 ev_stop (EV_A_ (W)w); 1713 ev_stop (EV_A_ (W)w);
1371 1714
1372 fd_change (EV_A_ w->fd); 1715 fd_change (EV_A_ w->fd, 1);
1373} 1716}
1374 1717
1375void 1718void noinline
1376ev_timer_start (EV_P_ struct ev_timer *w) 1719ev_timer_start (EV_P_ ev_timer *w)
1377{ 1720{
1378 if (expect_false (ev_is_active (w))) 1721 if (expect_false (ev_is_active (w)))
1379 return; 1722 return;
1380 1723
1381 ((WT)w)->at += mn_now; 1724 ((WT)w)->at += mn_now;
1382 1725
1383 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1726 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1384 1727
1385 ev_start (EV_A_ (W)w, ++timercnt); 1728 ev_start (EV_A_ (W)w, ++timercnt);
1386 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1729 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1387 timers [timercnt - 1] = w; 1730 timers [timercnt - 1] = (WT)w;
1388 upheap ((WT *)timers, timercnt - 1); 1731 upheap (timers, timercnt - 1);
1389 1732
1390 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1733 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1391} 1734}
1392 1735
1393void 1736void noinline
1394ev_timer_stop (EV_P_ struct ev_timer *w) 1737ev_timer_stop (EV_P_ ev_timer *w)
1395{ 1738{
1396 ev_clear_pending (EV_A_ (W)w); 1739 clear_pending (EV_A_ (W)w);
1397 if (expect_false (!ev_is_active (w))) 1740 if (expect_false (!ev_is_active (w)))
1398 return; 1741 return;
1399 1742
1400 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1743 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1401 1744
1745 {
1746 int active = ((W)w)->active;
1747
1402 if (expect_true (((W)w)->active < timercnt--)) 1748 if (expect_true (--active < --timercnt))
1403 { 1749 {
1404 timers [((W)w)->active - 1] = timers [timercnt]; 1750 timers [active] = timers [timercnt];
1405 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1751 adjustheap (timers, timercnt, active);
1406 } 1752 }
1753 }
1407 1754
1408 ((WT)w)->at -= mn_now; 1755 ((WT)w)->at -= mn_now;
1409 1756
1410 ev_stop (EV_A_ (W)w); 1757 ev_stop (EV_A_ (W)w);
1411} 1758}
1412 1759
1413void 1760void noinline
1414ev_timer_again (EV_P_ struct ev_timer *w) 1761ev_timer_again (EV_P_ ev_timer *w)
1415{ 1762{
1416 if (ev_is_active (w)) 1763 if (ev_is_active (w))
1417 { 1764 {
1418 if (w->repeat) 1765 if (w->repeat)
1419 { 1766 {
1420 ((WT)w)->at = mn_now + w->repeat; 1767 ((WT)w)->at = mn_now + w->repeat;
1421 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1768 adjustheap (timers, timercnt, ((W)w)->active - 1);
1422 } 1769 }
1423 else 1770 else
1424 ev_timer_stop (EV_A_ w); 1771 ev_timer_stop (EV_A_ w);
1425 } 1772 }
1426 else if (w->repeat) 1773 else if (w->repeat)
… …
1428 w->at = w->repeat; 1775 w->at = w->repeat;
1429 ev_timer_start (EV_A_ w); 1776 ev_timer_start (EV_A_ w);
1430 } 1777 }
1431} 1778}
1432 1779
1433#if EV_PERIODICS 1780#if EV_PERIODIC_ENABLE
1434void 1781void noinline
1435ev_periodic_start (EV_P_ struct ev_periodic *w) 1782ev_periodic_start (EV_P_ ev_periodic *w)
1436{ 1783{
1437 if (expect_false (ev_is_active (w))) 1784 if (expect_false (ev_is_active (w)))
1438 return; 1785 return;
1439 1786
1440 if (w->reschedule_cb) 1787 if (w->reschedule_cb)
1441 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1788 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1442 else if (w->interval) 1789 else if (w->interval)
1443 { 1790 {
1444 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1791 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1445 /* this formula differs from the one in periodic_reify because we do not always round up */ 1792 /* this formula differs from the one in periodic_reify because we do not always round up */
1446 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1793 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1447 } 1794 }
1795 else
1796 ((WT)w)->at = w->offset;
1448 1797
1449 ev_start (EV_A_ (W)w, ++periodiccnt); 1798 ev_start (EV_A_ (W)w, ++periodiccnt);
1450 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1799 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1451 periodics [periodiccnt - 1] = w; 1800 periodics [periodiccnt - 1] = (WT)w;
1452 upheap ((WT *)periodics, periodiccnt - 1); 1801 upheap (periodics, periodiccnt - 1);
1453 1802
1454 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1803 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1455} 1804}
1456 1805
1457void 1806void noinline
1458ev_periodic_stop (EV_P_ struct ev_periodic *w) 1807ev_periodic_stop (EV_P_ ev_periodic *w)
1459{ 1808{
1460 ev_clear_pending (EV_A_ (W)w); 1809 clear_pending (EV_A_ (W)w);
1461 if (expect_false (!ev_is_active (w))) 1810 if (expect_false (!ev_is_active (w)))
1462 return; 1811 return;
1463 1812
1464 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1813 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1465 1814
1815 {
1816 int active = ((W)w)->active;
1817
1466 if (expect_true (((W)w)->active < periodiccnt--)) 1818 if (expect_true (--active < --periodiccnt))
1467 { 1819 {
1468 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1820 periodics [active] = periodics [periodiccnt];
1469 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1821 adjustheap (periodics, periodiccnt, active);
1470 } 1822 }
1823 }
1471 1824
1472 ev_stop (EV_A_ (W)w); 1825 ev_stop (EV_A_ (W)w);
1473} 1826}
1474 1827
1475void 1828void noinline
1476ev_periodic_again (EV_P_ struct ev_periodic *w) 1829ev_periodic_again (EV_P_ ev_periodic *w)
1477{ 1830{
1478 /* TODO: use adjustheap and recalculation */ 1831 /* TODO: use adjustheap and recalculation */
1479 ev_periodic_stop (EV_A_ w); 1832 ev_periodic_stop (EV_A_ w);
1480 ev_periodic_start (EV_A_ w); 1833 ev_periodic_start (EV_A_ w);
1481} 1834}
1482#endif 1835#endif
1483 1836
1484void
1485ev_idle_start (EV_P_ struct ev_idle *w)
1486{
1487 if (expect_false (ev_is_active (w)))
1488 return;
1489
1490 ev_start (EV_A_ (W)w, ++idlecnt);
1491 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1492 idles [idlecnt - 1] = w;
1493}
1494
1495void
1496ev_idle_stop (EV_P_ struct ev_idle *w)
1497{
1498 ev_clear_pending (EV_A_ (W)w);
1499 if (expect_false (!ev_is_active (w)))
1500 return;
1501
1502 idles [((W)w)->active - 1] = idles [--idlecnt];
1503 ev_stop (EV_A_ (W)w);
1504}
1505
1506void
1507ev_prepare_start (EV_P_ struct ev_prepare *w)
1508{
1509 if (expect_false (ev_is_active (w)))
1510 return;
1511
1512 ev_start (EV_A_ (W)w, ++preparecnt);
1513 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1514 prepares [preparecnt - 1] = w;
1515}
1516
1517void
1518ev_prepare_stop (EV_P_ struct ev_prepare *w)
1519{
1520 ev_clear_pending (EV_A_ (W)w);
1521 if (expect_false (!ev_is_active (w)))
1522 return;
1523
1524 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1525 ev_stop (EV_A_ (W)w);
1526}
1527
1528void
1529ev_check_start (EV_P_ struct ev_check *w)
1530{
1531 if (expect_false (ev_is_active (w)))
1532 return;
1533
1534 ev_start (EV_A_ (W)w, ++checkcnt);
1535 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1536 checks [checkcnt - 1] = w;
1537}
1538
1539void
1540ev_check_stop (EV_P_ struct ev_check *w)
1541{
1542 ev_clear_pending (EV_A_ (W)w);
1543 if (expect_false (!ev_is_active (w)))
1544 return;
1545
1546 checks [((W)w)->active - 1] = checks [--checkcnt];
1547 ev_stop (EV_A_ (W)w);
1548}
1549
1550#ifndef SA_RESTART 1837#ifndef SA_RESTART
1551# define SA_RESTART 0 1838# define SA_RESTART 0
1552#endif 1839#endif
1553 1840
1554void 1841void noinline
1555ev_signal_start (EV_P_ struct ev_signal *w) 1842ev_signal_start (EV_P_ ev_signal *w)
1556{ 1843{
1557#if EV_MULTIPLICITY 1844#if EV_MULTIPLICITY
1558 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1845 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1559#endif 1846#endif
1560 if (expect_false (ev_is_active (w))) 1847 if (expect_false (ev_is_active (w)))
1561 return; 1848 return;
1562 1849
1563 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1850 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1564 1851
1852 {
1853#ifndef _WIN32
1854 sigset_t full, prev;
1855 sigfillset (&full);
1856 sigprocmask (SIG_SETMASK, &full, &prev);
1857#endif
1858
1859 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1860
1861#ifndef _WIN32
1862 sigprocmask (SIG_SETMASK, &prev, 0);
1863#endif
1864 }
1865
1565 ev_start (EV_A_ (W)w, 1); 1866 ev_start (EV_A_ (W)w, 1);
1566 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1567 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1867 wlist_add (&signals [w->signum - 1].head, (WL)w);
1568 1868
1569 if (!((WL)w)->next) 1869 if (!((WL)w)->next)
1570 { 1870 {
1571#if _WIN32 1871#if _WIN32
1572 signal (w->signum, sighandler); 1872 signal (w->signum, sighandler);
… …
1578 sigaction (w->signum, &sa, 0); 1878 sigaction (w->signum, &sa, 0);
1579#endif 1879#endif
1580 } 1880 }
1581} 1881}
1582 1882
1583void 1883void noinline
1584ev_signal_stop (EV_P_ struct ev_signal *w) 1884ev_signal_stop (EV_P_ ev_signal *w)
1585{ 1885{
1586 ev_clear_pending (EV_A_ (W)w); 1886 clear_pending (EV_A_ (W)w);
1587 if (expect_false (!ev_is_active (w))) 1887 if (expect_false (!ev_is_active (w)))
1588 return; 1888 return;
1589 1889
1590 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1890 wlist_del (&signals [w->signum - 1].head, (WL)w);
1591 ev_stop (EV_A_ (W)w); 1891 ev_stop (EV_A_ (W)w);
1592 1892
1593 if (!signals [w->signum - 1].head) 1893 if (!signals [w->signum - 1].head)
1594 signal (w->signum, SIG_DFL); 1894 signal (w->signum, SIG_DFL);
1595} 1895}
1596 1896
1597void 1897void
1598ev_child_start (EV_P_ struct ev_child *w) 1898ev_child_start (EV_P_ ev_child *w)
1599{ 1899{
1600#if EV_MULTIPLICITY 1900#if EV_MULTIPLICITY
1601 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 1901 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1602#endif 1902#endif
1603 if (expect_false (ev_is_active (w))) 1903 if (expect_false (ev_is_active (w)))
1604 return; 1904 return;
1605 1905
1606 ev_start (EV_A_ (W)w, 1); 1906 ev_start (EV_A_ (W)w, 1);
1607 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1907 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1608} 1908}
1609 1909
1610void 1910void
1611ev_child_stop (EV_P_ struct ev_child *w) 1911ev_child_stop (EV_P_ ev_child *w)
1612{ 1912{
1613 ev_clear_pending (EV_A_ (W)w); 1913 clear_pending (EV_A_ (W)w);
1614 if (expect_false (!ev_is_active (w))) 1914 if (expect_false (!ev_is_active (w)))
1615 return; 1915 return;
1616 1916
1617 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1917 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1618 ev_stop (EV_A_ (W)w); 1918 ev_stop (EV_A_ (W)w);
1619} 1919}
1620 1920
1921#if EV_STAT_ENABLE
1922
1923# ifdef _WIN32
1924# undef lstat
1925# define lstat(a,b) _stati64 (a,b)
1926# endif
1927
1928#define DEF_STAT_INTERVAL 5.0074891
1929#define MIN_STAT_INTERVAL 0.1074891
1930
1931static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1932
1933#if EV_USE_INOTIFY
1934# define EV_INOTIFY_BUFSIZE 8192
1935
1936static void noinline
1937infy_add (EV_P_ ev_stat *w)
1938{
1939 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);
1940
1941 if (w->wd < 0)
1942 {
1943 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1944
1945 /* monitor some parent directory for speedup hints */
1946 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1947 {
1948 char path [4096];
1949 strcpy (path, w->path);
1950
1951 do
1952 {
1953 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1954 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1955
1956 char *pend = strrchr (path, '/');
1957
1958 if (!pend)
1959 break; /* whoops, no '/', complain to your admin */
1960
1961 *pend = 0;
1962 w->wd = inotify_add_watch (fs_fd, path, mask);
1963 }
1964 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1965 }
1966 }
1967 else
1968 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1969
1970 if (w->wd >= 0)
1971 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1972}
1973
1974static void noinline
1975infy_del (EV_P_ ev_stat *w)
1976{
1977 int slot;
1978 int wd = w->wd;
1979
1980 if (wd < 0)
1981 return;
1982
1983 w->wd = -2;
1984 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1985 wlist_del (&fs_hash [slot].head, (WL)w);
1986
1987 /* remove this watcher, if others are watching it, they will rearm */
1988 inotify_rm_watch (fs_fd, wd);
1989}
1990
1991static void noinline
1992infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1993{
1994 if (slot < 0)
1995 /* overflow, need to check for all hahs slots */
1996 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1997 infy_wd (EV_A_ slot, wd, ev);
1998 else
1999 {
2000 WL w_;
2001
2002 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
2003 {
2004 ev_stat *w = (ev_stat *)w_;
2005 w_ = w_->next; /* lets us remove this watcher and all before it */
2006
2007 if (w->wd == wd || wd == -1)
2008 {
2009 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2010 {
2011 w->wd = -1;
2012 infy_add (EV_A_ w); /* re-add, no matter what */
2013 }
2014
2015 stat_timer_cb (EV_A_ &w->timer, 0);
2016 }
2017 }
2018 }
2019}
2020
2021static void
2022infy_cb (EV_P_ ev_io *w, int revents)
2023{
2024 char buf [EV_INOTIFY_BUFSIZE];
2025 struct inotify_event *ev = (struct inotify_event *)buf;
2026 int ofs;
2027 int len = read (fs_fd, buf, sizeof (buf));
2028
2029 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2030 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2031}
2032
2033void inline_size
2034infy_init (EV_P)
2035{
2036 if (fs_fd != -2)
2037 return;
2038
2039 fs_fd = inotify_init ();
2040
2041 if (fs_fd >= 0)
2042 {
2043 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2044 ev_set_priority (&fs_w, EV_MAXPRI);
2045 ev_io_start (EV_A_ &fs_w);
2046 }
2047}
2048
2049void inline_size
2050infy_fork (EV_P)
2051{
2052 int slot;
2053
2054 if (fs_fd < 0)
2055 return;
2056
2057 close (fs_fd);
2058 fs_fd = inotify_init ();
2059
2060 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2061 {
2062 WL w_ = fs_hash [slot].head;
2063 fs_hash [slot].head = 0;
2064
2065 while (w_)
2066 {
2067 ev_stat *w = (ev_stat *)w_;
2068 w_ = w_->next; /* lets us add this watcher */
2069
2070 w->wd = -1;
2071
2072 if (fs_fd >= 0)
2073 infy_add (EV_A_ w); /* re-add, no matter what */
2074 else
2075 ev_timer_start (EV_A_ &w->timer);
2076 }
2077
2078 }
2079}
2080
2081#endif
2082
2083void
2084ev_stat_stat (EV_P_ ev_stat *w)
2085{
2086 if (lstat (w->path, &w->attr) < 0)
2087 w->attr.st_nlink = 0;
2088 else if (!w->attr.st_nlink)
2089 w->attr.st_nlink = 1;
2090}
2091
2092static void noinline
2093stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2094{
2095 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2096
2097 /* we copy this here each the time so that */
2098 /* prev has the old value when the callback gets invoked */
2099 w->prev = w->attr;
2100 ev_stat_stat (EV_A_ w);
2101
2102 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2103 if (
2104 w->prev.st_dev != w->attr.st_dev
2105 || w->prev.st_ino != w->attr.st_ino
2106 || w->prev.st_mode != w->attr.st_mode
2107 || w->prev.st_nlink != w->attr.st_nlink
2108 || w->prev.st_uid != w->attr.st_uid
2109 || w->prev.st_gid != w->attr.st_gid
2110 || w->prev.st_rdev != w->attr.st_rdev
2111 || w->prev.st_size != w->attr.st_size
2112 || w->prev.st_atime != w->attr.st_atime
2113 || w->prev.st_mtime != w->attr.st_mtime
2114 || w->prev.st_ctime != w->attr.st_ctime
2115 ) {
2116 #if EV_USE_INOTIFY
2117 infy_del (EV_A_ w);
2118 infy_add (EV_A_ w);
2119 ev_stat_stat (EV_A_ w); /* avoid race... */
2120 #endif
2121
2122 ev_feed_event (EV_A_ w, EV_STAT);
2123 }
2124}
2125
2126void
2127ev_stat_start (EV_P_ ev_stat *w)
2128{
2129 if (expect_false (ev_is_active (w)))
2130 return;
2131
2132 /* since we use memcmp, we need to clear any padding data etc. */
2133 memset (&w->prev, 0, sizeof (ev_statdata));
2134 memset (&w->attr, 0, sizeof (ev_statdata));
2135
2136 ev_stat_stat (EV_A_ w);
2137
2138 if (w->interval < MIN_STAT_INTERVAL)
2139 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2140
2141 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2142 ev_set_priority (&w->timer, ev_priority (w));
2143
2144#if EV_USE_INOTIFY
2145 infy_init (EV_A);
2146
2147 if (fs_fd >= 0)
2148 infy_add (EV_A_ w);
2149 else
2150#endif
2151 ev_timer_start (EV_A_ &w->timer);
2152
2153 ev_start (EV_A_ (W)w, 1);
2154}
2155
2156void
2157ev_stat_stop (EV_P_ ev_stat *w)
2158{
2159 clear_pending (EV_A_ (W)w);
2160 if (expect_false (!ev_is_active (w)))
2161 return;
2162
2163#if EV_USE_INOTIFY
2164 infy_del (EV_A_ w);
2165#endif
2166 ev_timer_stop (EV_A_ &w->timer);
2167
2168 ev_stop (EV_A_ (W)w);
2169}
2170#endif
2171
2172#if EV_IDLE_ENABLE
2173void
2174ev_idle_start (EV_P_ ev_idle *w)
2175{
2176 if (expect_false (ev_is_active (w)))
2177 return;
2178
2179 pri_adjust (EV_A_ (W)w);
2180
2181 {
2182 int active = ++idlecnt [ABSPRI (w)];
2183
2184 ++idleall;
2185 ev_start (EV_A_ (W)w, active);
2186
2187 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2188 idles [ABSPRI (w)][active - 1] = w;
2189 }
2190}
2191
2192void
2193ev_idle_stop (EV_P_ ev_idle *w)
2194{
2195 clear_pending (EV_A_ (W)w);
2196 if (expect_false (!ev_is_active (w)))
2197 return;
2198
2199 {
2200 int active = ((W)w)->active;
2201
2202 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2203 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2204
2205 ev_stop (EV_A_ (W)w);
2206 --idleall;
2207 }
2208}
2209#endif
2210
2211void
2212ev_prepare_start (EV_P_ ev_prepare *w)
2213{
2214 if (expect_false (ev_is_active (w)))
2215 return;
2216
2217 ev_start (EV_A_ (W)w, ++preparecnt);
2218 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2219 prepares [preparecnt - 1] = w;
2220}
2221
2222void
2223ev_prepare_stop (EV_P_ ev_prepare *w)
2224{
2225 clear_pending (EV_A_ (W)w);
2226 if (expect_false (!ev_is_active (w)))
2227 return;
2228
2229 {
2230 int active = ((W)w)->active;
2231 prepares [active - 1] = prepares [--preparecnt];
2232 ((W)prepares [active - 1])->active = active;
2233 }
2234
2235 ev_stop (EV_A_ (W)w);
2236}
2237
2238void
2239ev_check_start (EV_P_ ev_check *w)
2240{
2241 if (expect_false (ev_is_active (w)))
2242 return;
2243
2244 ev_start (EV_A_ (W)w, ++checkcnt);
2245 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2246 checks [checkcnt - 1] = w;
2247}
2248
2249void
2250ev_check_stop (EV_P_ ev_check *w)
2251{
2252 clear_pending (EV_A_ (W)w);
2253 if (expect_false (!ev_is_active (w)))
2254 return;
2255
2256 {
2257 int active = ((W)w)->active;
2258 checks [active - 1] = checks [--checkcnt];
2259 ((W)checks [active - 1])->active = active;
2260 }
2261
2262 ev_stop (EV_A_ (W)w);
2263}
2264
2265#if EV_EMBED_ENABLE
2266void noinline
2267ev_embed_sweep (EV_P_ ev_embed *w)
2268{
2269 ev_loop (w->other, EVLOOP_NONBLOCK);
2270}
2271
2272static void
2273embed_io_cb (EV_P_ ev_io *io, int revents)
2274{
2275 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2276
2277 if (ev_cb (w))
2278 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2279 else
2280 ev_loop (w->other, EVLOOP_NONBLOCK);
2281}
2282
2283static void
2284embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2285{
2286 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2287
2288 {
2289 struct ev_loop *loop = w->other;
2290
2291 while (fdchangecnt)
2292 {
2293 fd_reify (EV_A);
2294 ev_loop (EV_A_ EVLOOP_NONBLOCK);
2295 }
2296 }
2297}
2298
2299#if 0
2300static void
2301embed_idle_cb (EV_P_ ev_idle *idle, int revents)
2302{
2303 ev_idle_stop (EV_A_ idle);
2304}
2305#endif
2306
2307void
2308ev_embed_start (EV_P_ ev_embed *w)
2309{
2310 if (expect_false (ev_is_active (w)))
2311 return;
2312
2313 {
2314 struct ev_loop *loop = w->other;
2315 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2316 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2317 }
2318
2319 ev_set_priority (&w->io, ev_priority (w));
2320 ev_io_start (EV_A_ &w->io);
2321
2322 ev_prepare_init (&w->prepare, embed_prepare_cb);
2323 ev_set_priority (&w->prepare, EV_MINPRI);
2324 ev_prepare_start (EV_A_ &w->prepare);
2325
2326 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
2327
2328 ev_start (EV_A_ (W)w, 1);
2329}
2330
2331void
2332ev_embed_stop (EV_P_ ev_embed *w)
2333{
2334 clear_pending (EV_A_ (W)w);
2335 if (expect_false (!ev_is_active (w)))
2336 return;
2337
2338 ev_io_stop (EV_A_ &w->io);
2339 ev_prepare_stop (EV_A_ &w->prepare);
2340
2341 ev_stop (EV_A_ (W)w);
2342}
2343#endif
2344
2345#if EV_FORK_ENABLE
2346void
2347ev_fork_start (EV_P_ ev_fork *w)
2348{
2349 if (expect_false (ev_is_active (w)))
2350 return;
2351
2352 ev_start (EV_A_ (W)w, ++forkcnt);
2353 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2354 forks [forkcnt - 1] = w;
2355}
2356
2357void
2358ev_fork_stop (EV_P_ ev_fork *w)
2359{
2360 clear_pending (EV_A_ (W)w);
2361 if (expect_false (!ev_is_active (w)))
2362 return;
2363
2364 {
2365 int active = ((W)w)->active;
2366 forks [active - 1] = forks [--forkcnt];
2367 ((W)forks [active - 1])->active = active;
2368 }
2369
2370 ev_stop (EV_A_ (W)w);
2371}
2372#endif
2373
1621/*****************************************************************************/ 2374/*****************************************************************************/
1622 2375
1623struct ev_once 2376struct ev_once
1624{ 2377{
1625 struct ev_io io; 2378 ev_io io;
1626 struct ev_timer to; 2379 ev_timer to;
1627 void (*cb)(int revents, void *arg); 2380 void (*cb)(int revents, void *arg);
1628 void *arg; 2381 void *arg;
1629}; 2382};
1630 2383
1631static void 2384static void
… …
1640 2393
1641 cb (revents, arg); 2394 cb (revents, arg);
1642} 2395}
1643 2396
1644static void 2397static void
1645once_cb_io (EV_P_ struct ev_io *w, int revents) 2398once_cb_io (EV_P_ ev_io *w, int revents)
1646{ 2399{
1647 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2400 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1648} 2401}
1649 2402
1650static void 2403static void
1651once_cb_to (EV_P_ struct ev_timer *w, int revents) 2404once_cb_to (EV_P_ ev_timer *w, int revents)
1652{ 2405{
1653 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2406 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1654} 2407}
1655 2408
1656void 2409void
… …
1680 ev_timer_set (&once->to, timeout, 0.); 2433 ev_timer_set (&once->to, timeout, 0.);
1681 ev_timer_start (EV_A_ &once->to); 2434 ev_timer_start (EV_A_ &once->to);
1682 } 2435 }
1683} 2436}
1684 2437
2438#if EV_MULTIPLICITY
2439 #include "ev_wrap.h"
2440#endif
2441
1685#ifdef __cplusplus 2442#ifdef __cplusplus
1686} 2443}
1687#endif 2444#endif
1688 2445

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