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Comparing libev/ev.c (file contents):
Revision 1.120 by root, Fri Nov 16 01:54:25 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
43# ifndef EV_USE_REALTIME 47# ifndef EV_USE_REALTIME
44# define EV_USE_REALTIME 1 48# define EV_USE_REALTIME 1
45# endif 49# endif
50# else
51# ifndef EV_USE_MONOTONIC
52# define EV_USE_MONOTONIC 0
53# endif
54# ifndef EV_USE_REALTIME
55# define EV_USE_REALTIME 0
56# endif
46# endif 57# endif
47 58
48# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) 59# ifndef EV_USE_NANOSLEEP
60# if HAVE_NANOSLEEP
49# define EV_USE_SELECT 1 61# define EV_USE_NANOSLEEP 1
62# else
63# define EV_USE_NANOSLEEP 0
64# endif
50# endif 65# endif
51 66
52# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) 67# ifndef EV_USE_SELECT
68# if HAVE_SELECT && HAVE_SYS_SELECT_H
53# define EV_USE_POLL 1 69# define EV_USE_SELECT 1
70# else
71# define EV_USE_SELECT 0
72# endif
54# endif 73# endif
55 74
56# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) 75# ifndef EV_USE_POLL
76# if HAVE_POLL && HAVE_POLL_H
57# define EV_USE_EPOLL 1 77# define EV_USE_POLL 1
78# else
79# define EV_USE_POLL 0
80# endif
58# endif 81# endif
59 82
60# 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
61# define EV_USE_KQUEUE 1 85# define EV_USE_EPOLL 1
86# else
87# define EV_USE_EPOLL 0
88# endif
62# endif 89# endif
63 90
64# 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
65# define EV_USE_PORT 1 101# define EV_USE_PORT 1
102# else
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
66# endif 113# endif
67 114
68#endif 115#endif
69 116
70#include <math.h> 117#include <math.h>
… …
79#include <sys/types.h> 126#include <sys/types.h>
80#include <time.h> 127#include <time.h>
81 128
82#include <signal.h> 129#include <signal.h>
83 130
131#ifdef EV_H
132# include EV_H
133#else
134# include "ev.h"
135#endif
136
84#ifndef _WIN32 137#ifndef _WIN32
85# include <unistd.h>
86# include <sys/time.h> 138# include <sys/time.h>
87# include <sys/wait.h> 139# include <sys/wait.h>
140# include <unistd.h>
88#else 141#else
89# define WIN32_LEAN_AND_MEAN 142# define WIN32_LEAN_AND_MEAN
90# include <windows.h> 143# include <windows.h>
91# ifndef EV_SELECT_IS_WINSOCKET 144# ifndef EV_SELECT_IS_WINSOCKET
92# define EV_SELECT_IS_WINSOCKET 1 145# define EV_SELECT_IS_WINSOCKET 1
… …
94#endif 147#endif
95 148
96/**/ 149/**/
97 150
98#ifndef EV_USE_MONOTONIC 151#ifndef EV_USE_MONOTONIC
99# define EV_USE_MONOTONIC 1 152# define EV_USE_MONOTONIC 0
100#endif 153#endif
101 154
102#ifndef EV_USE_REALTIME 155#ifndef EV_USE_REALTIME
103# define EV_USE_REALTIME 1 156# define EV_USE_REALTIME 0
157#endif
158
159#ifndef EV_USE_NANOSLEEP
160# define EV_USE_NANOSLEEP 0
104#endif 161#endif
105 162
106#ifndef EV_USE_SELECT 163#ifndef EV_USE_SELECT
107# define EV_USE_SELECT 1 164# define EV_USE_SELECT 1
108# define EV_SELECT_USE_FD_SET 1
109#endif 165#endif
110 166
111#ifndef EV_USE_POLL 167#ifndef EV_USE_POLL
112# ifdef _WIN32 168# ifdef _WIN32
113# define EV_USE_POLL 0 169# define EV_USE_POLL 0
… …
126 182
127#ifndef EV_USE_PORT 183#ifndef EV_USE_PORT
128# define EV_USE_PORT 0 184# define EV_USE_PORT 0
129#endif 185#endif
130 186
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
131/**/ 207/**/
132
133/* darwin simply cannot be helped */
134#ifdef __APPLE__
135# undef EV_USE_POLL
136# undef EV_USE_KQUEUE
137#endif
138 208
139#ifndef CLOCK_MONOTONIC 209#ifndef CLOCK_MONOTONIC
140# undef EV_USE_MONOTONIC 210# undef EV_USE_MONOTONIC
141# define EV_USE_MONOTONIC 0 211# define EV_USE_MONOTONIC 0
142#endif 212#endif
… …
144#ifndef CLOCK_REALTIME 214#ifndef CLOCK_REALTIME
145# undef EV_USE_REALTIME 215# undef EV_USE_REALTIME
146# define EV_USE_REALTIME 0 216# define EV_USE_REALTIME 0
147#endif 217#endif
148 218
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
149#if EV_SELECT_IS_WINSOCKET 234#if EV_SELECT_IS_WINSOCKET
150# include <winsock.h> 235# include <winsock.h>
151#endif 236#endif
152 237
153/**/ 238/**/
154 239
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
155#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) */
156#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) */
157#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
158/*#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 */
159 253
160#ifdef EV_H
161# include EV_H
162#else
163# include "ev.h"
164#endif
165
166#if __GNUC__ >= 3 254#if __GNUC__ >= 4
167# define expect(expr,value) __builtin_expect ((expr),(value)) 255# define expect(expr,value) __builtin_expect ((expr),(value))
168# define inline inline 256# define noinline __attribute__ ((noinline))
169#else 257#else
170# define expect(expr,value) (expr) 258# define expect(expr,value) (expr)
171# define inline static 259# define noinline
260# if __STDC_VERSION__ < 199901L
261# define inline
262# endif
172#endif 263#endif
173 264
174#define expect_false(expr) expect ((expr) != 0, 0) 265#define expect_false(expr) expect ((expr) != 0, 0)
175#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
176 274
177#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 275#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
178#define ABSPRI(w) ((w)->priority - EV_MINPRI) 276#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
179 277
180#define EMPTY0 /* required for microsofts broken pseudo-c compiler */ 278#define EMPTY /* required for microsofts broken pseudo-c compiler */
181#define EMPTY2(a,b) /* used to suppress some warnings */ 279#define EMPTY2(a,b) /* used to suppress some warnings */
182 280
183typedef struct ev_watcher *W; 281typedef ev_watcher *W;
184typedef struct ev_watcher_list *WL; 282typedef ev_watcher_list *WL;
185typedef struct ev_watcher_time *WT; 283typedef ev_watcher_time *WT;
186 284
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 */
187static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 288static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
289#endif
188 290
189#ifdef _WIN32 291#ifdef _WIN32
190# include "ev_win32.c" 292# include "ev_win32.c"
191#endif 293#endif
192 294
193/*****************************************************************************/ 295/*****************************************************************************/
194 296
195static void (*syserr_cb)(const char *msg); 297static void (*syserr_cb)(const char *msg);
196 298
299void
197void ev_set_syserr_cb (void (*cb)(const char *msg)) 300ev_set_syserr_cb (void (*cb)(const char *msg))
198{ 301{
199 syserr_cb = cb; 302 syserr_cb = cb;
200} 303}
201 304
202static void 305static void noinline
203syserr (const char *msg) 306syserr (const char *msg)
204{ 307{
205 if (!msg) 308 if (!msg)
206 msg = "(libev) system error"; 309 msg = "(libev) system error";
207 310
… …
214 } 317 }
215} 318}
216 319
217static void *(*alloc)(void *ptr, long size); 320static void *(*alloc)(void *ptr, long size);
218 321
322void
219void ev_set_allocator (void *(*cb)(void *ptr, long size)) 323ev_set_allocator (void *(*cb)(void *ptr, long size))
220{ 324{
221 alloc = cb; 325 alloc = cb;
222} 326}
223 327
224static void * 328inline_speed void *
225ev_realloc (void *ptr, long size) 329ev_realloc (void *ptr, long size)
226{ 330{
227 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 331 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
228 332
229 if (!ptr && size) 333 if (!ptr && size)
… …
253typedef struct 357typedef struct
254{ 358{
255 W w; 359 W w;
256 int events; 360 int events;
257} ANPENDING; 361} ANPENDING;
362
363#if EV_USE_INOTIFY
364typedef struct
365{
366 WL head;
367} ANFS;
368#endif
258 369
259#if EV_MULTIPLICITY 370#if EV_MULTIPLICITY
260 371
261 struct ev_loop 372 struct ev_loop
262 { 373 {
… …
296 gettimeofday (&tv, 0); 407 gettimeofday (&tv, 0);
297 return tv.tv_sec + tv.tv_usec * 1e-6; 408 return tv.tv_sec + tv.tv_usec * 1e-6;
298#endif 409#endif
299} 410}
300 411
301inline ev_tstamp 412ev_tstamp inline_size
302get_clock (void) 413get_clock (void)
303{ 414{
304#if EV_USE_MONOTONIC 415#if EV_USE_MONOTONIC
305 if (expect_true (have_monotonic)) 416 if (expect_true (have_monotonic))
306 { 417 {
… …
319{ 430{
320 return ev_rt_now; 431 return ev_rt_now;
321} 432}
322#endif 433#endif
323 434
324#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}
325 489
326#define array_needsize(type,base,cur,cnt,init) \ 490#define array_needsize(type,base,cur,cnt,init) \
327 if (expect_false ((cnt) > cur)) \ 491 if (expect_false ((cnt) > (cur))) \
328 { \ 492 { \
329 int newcnt = cur; \ 493 int ocur_ = (cur); \
330 do \ 494 (base) = (type *)array_realloc \
331 { \ 495 (sizeof (type), (base), &(cur), (cnt)); \
332 newcnt = array_roundsize (type, newcnt << 1); \ 496 init ((base) + (ocur_), (cur) - ocur_); \
333 } \
334 while ((cnt) > newcnt); \
335 \
336 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
337 init (base + cur, newcnt - cur); \
338 cur = newcnt; \
339 } 497 }
340 498
499#if 0
341#define array_slim(type,stem) \ 500#define array_slim(type,stem) \
342 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 501 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
343 { \ 502 { \
344 stem ## max = array_roundsize (stem ## cnt >> 1); \ 503 stem ## max = array_roundsize (stem ## cnt >> 1); \
345 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 504 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
346 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 505 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
347 } 506 }
507#endif
348 508
349#define array_free(stem, idx) \ 509#define array_free(stem, idx) \
350 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;
351 511
352/*****************************************************************************/ 512/*****************************************************************************/
353 513
354static 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
355anfds_init (ANFD *base, int count) 543anfds_init (ANFD *base, int count)
356{ 544{
357 while (count--) 545 while (count--)
358 { 546 {
359 base->head = 0; 547 base->head = 0;
… …
362 550
363 ++base; 551 ++base;
364 } 552 }
365} 553}
366 554
367void 555void inline_speed
368ev_feed_event (EV_P_ void *w, int revents)
369{
370 W w_ = (W)w;
371
372 if (w_->pending)
373 {
374 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
375 return;
376 }
377
378 w_->pending = ++pendingcnt [ABSPRI (w_)];
379 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
380 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
381 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
382}
383
384static void
385queue_events (EV_P_ W *events, int eventcnt, int type)
386{
387 int i;
388
389 for (i = 0; i < eventcnt; ++i)
390 ev_feed_event (EV_A_ events [i], type);
391}
392
393inline void
394fd_event (EV_P_ int fd, int revents) 556fd_event (EV_P_ int fd, int revents)
395{ 557{
396 ANFD *anfd = anfds + fd; 558 ANFD *anfd = anfds + fd;
397 struct ev_io *w; 559 ev_io *w;
398 560
399 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)
400 { 562 {
401 int ev = w->events & revents; 563 int ev = w->events & revents;
402 564
403 if (ev) 565 if (ev)
404 ev_feed_event (EV_A_ (W)w, ev); 566 ev_feed_event (EV_A_ (W)w, ev);
… …
406} 568}
407 569
408void 570void
409ev_feed_fd_event (EV_P_ int fd, int revents) 571ev_feed_fd_event (EV_P_ int fd, int revents)
410{ 572{
573 if (fd >= 0 && fd < anfdmax)
411 fd_event (EV_A_ fd, revents); 574 fd_event (EV_A_ fd, revents);
412} 575}
413 576
414/*****************************************************************************/ 577void inline_size
415
416static void
417fd_reify (EV_P) 578fd_reify (EV_P)
418{ 579{
419 int i; 580 int i;
420 581
421 for (i = 0; i < fdchangecnt; ++i) 582 for (i = 0; i < fdchangecnt; ++i)
422 { 583 {
423 int fd = fdchanges [i]; 584 int fd = fdchanges [i];
424 ANFD *anfd = anfds + fd; 585 ANFD *anfd = anfds + fd;
425 struct ev_io *w; 586 ev_io *w;
426 587
427 int events = 0; 588 unsigned char events = 0;
428 589
429 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)
430 events |= w->events; 591 events |= (unsigned char)w->events;
431 592
432#if EV_SELECT_IS_WINSOCKET 593#if EV_SELECT_IS_WINSOCKET
433 if (events) 594 if (events)
434 { 595 {
435 unsigned long argp; 596 unsigned long argp;
436 anfd->handle = _get_osfhandle (fd); 597 anfd->handle = _get_osfhandle (fd);
437 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));
438 } 599 }
439#endif 600#endif
440 601
602 {
603 unsigned char o_events = anfd->events;
604 unsigned char o_reify = anfd->reify;
605
441 anfd->reify = 0; 606 anfd->reify = 0;
442
443 method_modify (EV_A_ fd, anfd->events, events);
444 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 }
445 } 612 }
446 613
447 fdchangecnt = 0; 614 fdchangecnt = 0;
448} 615}
449 616
450static void 617void inline_size
451fd_change (EV_P_ int fd) 618fd_change (EV_P_ int fd, int flags)
452{ 619{
453 if (anfds [fd].reify) 620 unsigned char reify = anfds [fd].reify;
454 return;
455
456 anfds [fd].reify = 1; 621 anfds [fd].reify |= flags;
457 622
623 if (expect_true (!reify))
624 {
458 ++fdchangecnt; 625 ++fdchangecnt;
459 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 626 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
460 fdchanges [fdchangecnt - 1] = fd; 627 fdchanges [fdchangecnt - 1] = fd;
628 }
461} 629}
462 630
463static void 631void inline_speed
464fd_kill (EV_P_ int fd) 632fd_kill (EV_P_ int fd)
465{ 633{
466 struct ev_io *w; 634 ev_io *w;
467 635
468 while ((w = (struct ev_io *)anfds [fd].head)) 636 while ((w = (ev_io *)anfds [fd].head))
469 { 637 {
470 ev_io_stop (EV_A_ w); 638 ev_io_stop (EV_A_ w);
471 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);
472 } 640 }
473} 641}
474 642
475static int 643int inline_size
476fd_valid (int fd) 644fd_valid (int fd)
477{ 645{
478#ifdef _WIN32 646#ifdef _WIN32
479 return _get_osfhandle (fd) != -1; 647 return _get_osfhandle (fd) != -1;
480#else 648#else
481 return fcntl (fd, F_GETFD) != -1; 649 return fcntl (fd, F_GETFD) != -1;
482#endif 650#endif
483} 651}
484 652
485/* called on EBADF to verify fds */ 653/* called on EBADF to verify fds */
486static void 654static void noinline
487fd_ebadf (EV_P) 655fd_ebadf (EV_P)
488{ 656{
489 int fd; 657 int fd;
490 658
491 for (fd = 0; fd < anfdmax; ++fd) 659 for (fd = 0; fd < anfdmax; ++fd)
… …
493 if (!fd_valid (fd) == -1 && errno == EBADF) 661 if (!fd_valid (fd) == -1 && errno == EBADF)
494 fd_kill (EV_A_ fd); 662 fd_kill (EV_A_ fd);
495} 663}
496 664
497/* 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 */
498static void 666static void noinline
499fd_enomem (EV_P) 667fd_enomem (EV_P)
500{ 668{
501 int fd; 669 int fd;
502 670
503 for (fd = anfdmax; fd--; ) 671 for (fd = anfdmax; fd--; )
… …
506 fd_kill (EV_A_ fd); 674 fd_kill (EV_A_ fd);
507 return; 675 return;
508 } 676 }
509} 677}
510 678
511/* 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 */
512static void 680static void noinline
513fd_rearm_all (EV_P) 681fd_rearm_all (EV_P)
514{ 682{
515 int fd; 683 int fd;
516 684
517 /* this should be highly optimised to not do anything but set a flag */
518 for (fd = 0; fd < anfdmax; ++fd) 685 for (fd = 0; fd < anfdmax; ++fd)
519 if (anfds [fd].events) 686 if (anfds [fd].events)
520 { 687 {
521 anfds [fd].events = 0; 688 anfds [fd].events = 0;
522 fd_change (EV_A_ fd); 689 fd_change (EV_A_ fd, EV_IOFDSET | 1);
523 } 690 }
524} 691}
525 692
526/*****************************************************************************/ 693/*****************************************************************************/
527 694
528static void 695void inline_speed
529upheap (WT *heap, int k) 696upheap (WT *heap, int k)
530{ 697{
531 WT w = heap [k]; 698 WT w = heap [k];
532 699
533 while (k && heap [k >> 1]->at > w->at) 700 while (k)
534 { 701 {
702 int p = (k - 1) >> 1;
703
704 if (heap [p]->at <= w->at)
705 break;
706
535 heap [k] = heap [k >> 1]; 707 heap [k] = heap [p];
536 ((W)heap [k])->active = k + 1; 708 ((W)heap [k])->active = k + 1;
537 k >>= 1; 709 k = p;
538 } 710 }
539 711
540 heap [k] = w; 712 heap [k] = w;
541 ((W)heap [k])->active = k + 1; 713 ((W)heap [k])->active = k + 1;
542
543} 714}
544 715
545static void 716void inline_speed
546downheap (WT *heap, int N, int k) 717downheap (WT *heap, int N, int k)
547{ 718{
548 WT w = heap [k]; 719 WT w = heap [k];
549 720
550 while (k < (N >> 1)) 721 for (;;)
551 { 722 {
552 int j = k << 1; 723 int c = (k << 1) + 1;
553 724
554 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 725 if (c >= N)
555 ++j;
556
557 if (w->at <= heap [j]->at)
558 break; 726 break;
559 727
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
560 heap [k] = heap [j]; 734 heap [k] = heap [c];
561 ((W)heap [k])->active = k + 1; 735 ((W)heap [k])->active = k + 1;
736
562 k = j; 737 k = c;
563 } 738 }
564 739
565 heap [k] = w; 740 heap [k] = w;
566 ((W)heap [k])->active = k + 1; 741 ((W)heap [k])->active = k + 1;
567} 742}
568 743
569inline void 744void inline_size
570adjustheap (WT *heap, int N, int k) 745adjustheap (WT *heap, int N, int k)
571{ 746{
572 upheap (heap, k); 747 upheap (heap, k);
573 downheap (heap, N, k); 748 downheap (heap, N, k);
574} 749}
… …
584static ANSIG *signals; 759static ANSIG *signals;
585static int signalmax; 760static int signalmax;
586 761
587static int sigpipe [2]; 762static int sigpipe [2];
588static sig_atomic_t volatile gotsig; 763static sig_atomic_t volatile gotsig;
589static struct ev_io sigev; 764static ev_io sigev;
590 765
591static void 766void inline_size
592signals_init (ANSIG *base, int count) 767signals_init (ANSIG *base, int count)
593{ 768{
594 while (count--) 769 while (count--)
595 { 770 {
596 base->head = 0; 771 base->head = 0;
… …
616 write (sigpipe [1], &signum, 1); 791 write (sigpipe [1], &signum, 1);
617 errno = old_errno; 792 errno = old_errno;
618 } 793 }
619} 794}
620 795
621void 796void noinline
622ev_feed_signal_event (EV_P_ int signum) 797ev_feed_signal_event (EV_P_ int signum)
623{ 798{
624 WL w; 799 WL w;
625 800
626#if EV_MULTIPLICITY 801#if EV_MULTIPLICITY
… …
637 for (w = signals [signum].head; w; w = w->next) 812 for (w = signals [signum].head; w; w = w->next)
638 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 813 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
639} 814}
640 815
641static void 816static void
642sigcb (EV_P_ struct ev_io *iow, int revents) 817sigcb (EV_P_ ev_io *iow, int revents)
643{ 818{
644 int signum; 819 int signum;
645 820
646 read (sigpipe [0], &revents, 1); 821 read (sigpipe [0], &revents, 1);
647 gotsig = 0; 822 gotsig = 0;
… …
649 for (signum = signalmax; signum--; ) 824 for (signum = signalmax; signum--; )
650 if (signals [signum].gotsig) 825 if (signals [signum].gotsig)
651 ev_feed_signal_event (EV_A_ signum + 1); 826 ev_feed_signal_event (EV_A_ signum + 1);
652} 827}
653 828
654inline void 829void inline_speed
655fd_intern (int fd) 830fd_intern (int fd)
656{ 831{
657#ifdef _WIN32 832#ifdef _WIN32
658 int arg = 1; 833 int arg = 1;
659 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 834 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
661 fcntl (fd, F_SETFD, FD_CLOEXEC); 836 fcntl (fd, F_SETFD, FD_CLOEXEC);
662 fcntl (fd, F_SETFL, O_NONBLOCK); 837 fcntl (fd, F_SETFL, O_NONBLOCK);
663#endif 838#endif
664} 839}
665 840
666static void 841static void noinline
667siginit (EV_P) 842siginit (EV_P)
668{ 843{
669 fd_intern (sigpipe [0]); 844 fd_intern (sigpipe [0]);
670 fd_intern (sigpipe [1]); 845 fd_intern (sigpipe [1]);
671 846
… …
674 ev_unref (EV_A); /* child watcher should not keep loop alive */ 849 ev_unref (EV_A); /* child watcher should not keep loop alive */
675} 850}
676 851
677/*****************************************************************************/ 852/*****************************************************************************/
678 853
679static struct ev_child *childs [PID_HASHSIZE]; 854static WL childs [EV_PID_HASHSIZE];
680 855
681#ifndef _WIN32 856#ifndef _WIN32
682 857
683static 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}
684 874
685#ifndef WCONTINUED 875#ifndef WCONTINUED
686# define WCONTINUED 0 876# define WCONTINUED 0
687#endif 877#endif
688 878
689static void 879static void
690child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
691{
692 struct ev_child *w;
693
694 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
695 if (w->pid == pid || !w->pid)
696 {
697 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
698 w->rpid = pid;
699 w->rstatus = status;
700 ev_feed_event (EV_A_ (W)w, EV_CHILD);
701 }
702}
703
704static void
705childcb (EV_P_ struct ev_signal *sw, int revents) 880childcb (EV_P_ ev_signal *sw, int revents)
706{ 881{
707 int pid, status; 882 int pid, status;
708 883
884 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
709 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 885 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
710 { 886 if (!WCONTINUED
887 || errno != EINVAL
888 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
889 return;
890
711 /* 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 */
712 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 893 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
713 894
714 child_reap (EV_A_ sw, pid, pid, status); 895 child_reap (EV_A_ sw, pid, pid, status);
896 if (EV_PID_HASHSIZE > 1)
715 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 */
716 }
717} 898}
718 899
719#endif 900#endif
720 901
721/*****************************************************************************/ 902/*****************************************************************************/
… …
747{ 928{
748 return EV_VERSION_MINOR; 929 return EV_VERSION_MINOR;
749} 930}
750 931
751/* 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 */
752static int 933int inline_size
753enable_secure (void) 934enable_secure (void)
754{ 935{
755#ifdef _WIN32 936#ifdef _WIN32
756 return 0; 937 return 0;
757#else 938#else
… …
759 || getgid () != getegid (); 940 || getgid () != getegid ();
760#endif 941#endif
761} 942}
762 943
763unsigned int 944unsigned int
764ev_method (EV_P) 945ev_supported_backends (void)
765{ 946{
766 return method; 947 unsigned int flags = 0;
767}
768 948
769static 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
770loop_init (EV_P_ unsigned int flags) 1013loop_init (EV_P_ unsigned int flags)
771{ 1014{
772 if (!method) 1015 if (!backend)
773 { 1016 {
774#if EV_USE_MONOTONIC 1017#if EV_USE_MONOTONIC
775 { 1018 {
776 struct timespec ts; 1019 struct timespec ts;
777 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1020 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
782 ev_rt_now = ev_time (); 1025 ev_rt_now = ev_time ();
783 mn_now = get_clock (); 1026 mn_now = get_clock ();
784 now_floor = mn_now; 1027 now_floor = mn_now;
785 rtmn_diff = ev_rt_now - mn_now; 1028 rtmn_diff = ev_rt_now - mn_now;
786 1029
787 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"))
788 flags = atoi (getenv ("LIBEV_FLAGS")); 1042 flags = atoi (getenv ("LIBEV_FLAGS"));
789 1043
790 if (!(flags & 0x0000ffff)) 1044 if (!(flags & 0x0000ffffUL))
791 flags |= 0x0000ffff; 1045 flags |= ev_recommended_backends ();
792 1046
793 method = 0; 1047 backend = 0;
1048 backend_fd = -1;
1049#if EV_USE_INOTIFY
1050 fs_fd = -2;
1051#endif
1052
794#if EV_USE_PORT 1053#if EV_USE_PORT
795 if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); 1054 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
796#endif 1055#endif
797#if EV_USE_KQUEUE 1056#if EV_USE_KQUEUE
798 if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); 1057 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
799#endif 1058#endif
800#if EV_USE_EPOLL 1059#if EV_USE_EPOLL
801 if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); 1060 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
802#endif 1061#endif
803#if EV_USE_POLL 1062#if EV_USE_POLL
804 if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); 1063 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
805#endif 1064#endif
806#if EV_USE_SELECT 1065#if EV_USE_SELECT
807 if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); 1066 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
808#endif 1067#endif
809 1068
810 ev_init (&sigev, sigcb); 1069 ev_init (&sigev, sigcb);
811 ev_set_priority (&sigev, EV_MAXPRI); 1070 ev_set_priority (&sigev, EV_MAXPRI);
812 } 1071 }
813} 1072}
814 1073
815void 1074static void noinline
816loop_destroy (EV_P) 1075loop_destroy (EV_P)
817{ 1076{
818 int i; 1077 int i;
819 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
820#if EV_USE_PORT 1087#if EV_USE_PORT
821 if (method == EVMETHOD_PORT ) port_destroy (EV_A); 1088 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
822#endif 1089#endif
823#if EV_USE_KQUEUE 1090#if EV_USE_KQUEUE
824 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1091 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
825#endif 1092#endif
826#if EV_USE_EPOLL 1093#if EV_USE_EPOLL
827 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1094 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
828#endif 1095#endif
829#if EV_USE_POLL 1096#if EV_USE_POLL
830 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1097 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
831#endif 1098#endif
832#if EV_USE_SELECT 1099#if EV_USE_SELECT
833 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1100 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
834#endif 1101#endif
835 1102
836 for (i = NUMPRI; i--; ) 1103 for (i = NUMPRI; i--; )
1104 {
837 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;
838 1112
839 /* have to use the microsoft-never-gets-it-right macro */ 1113 /* have to use the microsoft-never-gets-it-right macro */
840 array_free (fdchange, EMPTY0); 1114 array_free (fdchange, EMPTY);
841 array_free (timer, EMPTY0); 1115 array_free (timer, EMPTY);
842#if EV_PERIODICS 1116#if EV_PERIODIC_ENABLE
843 array_free (periodic, EMPTY0); 1117 array_free (periodic, EMPTY);
844#endif 1118#endif
1119#if EV_FORK_ENABLE
845 array_free (idle, EMPTY0); 1120 array_free (fork, EMPTY);
1121#endif
846 array_free (prepare, EMPTY0); 1122 array_free (prepare, EMPTY);
847 array_free (check, EMPTY0); 1123 array_free (check, EMPTY);
848 1124
849 method = 0; 1125 backend = 0;
850} 1126}
851 1127
852static void 1128void inline_size infy_fork (EV_P);
1129
1130void inline_size
853loop_fork (EV_P) 1131loop_fork (EV_P)
854{ 1132{
855#if EV_USE_PORT 1133#if EV_USE_PORT
856 if (method == EVMETHOD_PORT ) port_fork (EV_A); 1134 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
857#endif 1135#endif
858#if EV_USE_KQUEUE 1136#if EV_USE_KQUEUE
859 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1137 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
860#endif 1138#endif
861#if EV_USE_EPOLL 1139#if EV_USE_EPOLL
862 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);
863#endif 1144#endif
864 1145
865 if (ev_is_active (&sigev)) 1146 if (ev_is_active (&sigev))
866 { 1147 {
867 /* default loop */ 1148 /* default loop */
… …
888 1169
889 memset (loop, 0, sizeof (struct ev_loop)); 1170 memset (loop, 0, sizeof (struct ev_loop));
890 1171
891 loop_init (EV_A_ flags); 1172 loop_init (EV_A_ flags);
892 1173
893 if (ev_method (EV_A)) 1174 if (ev_backend (EV_A))
894 return loop; 1175 return loop;
895 1176
896 return 0; 1177 return 0;
897} 1178}
898 1179
… …
911 1192
912#endif 1193#endif
913 1194
914#if EV_MULTIPLICITY 1195#if EV_MULTIPLICITY
915struct ev_loop * 1196struct ev_loop *
916ev_default_loop_ (unsigned int flags) 1197ev_default_loop_init (unsigned int flags)
917#else 1198#else
918int 1199int
919ev_default_loop (unsigned int flags) 1200ev_default_loop (unsigned int flags)
920#endif 1201#endif
921{ 1202{
… …
931 ev_default_loop_ptr = 1; 1212 ev_default_loop_ptr = 1;
932#endif 1213#endif
933 1214
934 loop_init (EV_A_ flags); 1215 loop_init (EV_A_ flags);
935 1216
936 if (ev_method (EV_A)) 1217 if (ev_backend (EV_A))
937 { 1218 {
938 siginit (EV_A); 1219 siginit (EV_A);
939 1220
940#ifndef _WIN32 1221#ifndef _WIN32
941 ev_signal_init (&childev, childcb, SIGCHLD); 1222 ev_signal_init (&childev, childcb, SIGCHLD);
… …
977{ 1258{
978#if EV_MULTIPLICITY 1259#if EV_MULTIPLICITY
979 struct ev_loop *loop = ev_default_loop_ptr; 1260 struct ev_loop *loop = ev_default_loop_ptr;
980#endif 1261#endif
981 1262
982 if (method) 1263 if (backend)
983 postfork = 1; 1264 postfork = 1;
984} 1265}
985 1266
986/*****************************************************************************/ 1267/*****************************************************************************/
987 1268
988static int 1269void
989any_pending (EV_P) 1270ev_invoke (EV_P_ void *w, int revents)
990{ 1271{
991 int pri; 1272 EV_CB_INVOKE ((W)w, revents);
992
993 for (pri = NUMPRI; pri--; )
994 if (pendingcnt [pri])
995 return 1;
996
997 return 0;
998} 1273}
999 1274
1000static void 1275void inline_speed
1001call_pending (EV_P) 1276call_pending (EV_P)
1002{ 1277{
1003 int pri; 1278 int pri;
1004 1279
1005 for (pri = NUMPRI; pri--; ) 1280 for (pri = NUMPRI; pri--; )
1006 while (pendingcnt [pri]) 1281 while (pendingcnt [pri])
1007 { 1282 {
1008 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1283 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1009 1284
1010 if (p->w) 1285 if (expect_true (p->w))
1011 { 1286 {
1287 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1288
1012 p->w->pending = 0; 1289 p->w->pending = 0;
1013 EV_CB_INVOKE (p->w, p->events); 1290 EV_CB_INVOKE (p->w, p->events);
1014 } 1291 }
1015 } 1292 }
1016} 1293}
1017 1294
1018static void 1295void inline_size
1019timers_reify (EV_P) 1296timers_reify (EV_P)
1020{ 1297{
1021 while (timercnt && ((WT)timers [0])->at <= mn_now) 1298 while (timercnt && ((WT)timers [0])->at <= mn_now)
1022 { 1299 {
1023 struct ev_timer *w = timers [0]; 1300 ev_timer *w = (ev_timer *)timers [0];
1024 1301
1025 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1302 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
1026 1303
1027 /* first reschedule or stop timer */ 1304 /* first reschedule or stop timer */
1028 if (w->repeat) 1305 if (w->repeat)
1029 { 1306 {
1030 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.));
1031 1308
1032 ((WT)w)->at += w->repeat; 1309 ((WT)w)->at += w->repeat;
1033 if (((WT)w)->at < mn_now) 1310 if (((WT)w)->at < mn_now)
1034 ((WT)w)->at = mn_now; 1311 ((WT)w)->at = mn_now;
1035 1312
1036 downheap ((WT *)timers, timercnt, 0); 1313 downheap (timers, timercnt, 0);
1037 } 1314 }
1038 else 1315 else
1039 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1316 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1040 1317
1041 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1318 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1042 } 1319 }
1043} 1320}
1044 1321
1045#if EV_PERIODICS 1322#if EV_PERIODIC_ENABLE
1046static void 1323void inline_size
1047periodics_reify (EV_P) 1324periodics_reify (EV_P)
1048{ 1325{
1049 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1326 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1050 { 1327 {
1051 struct ev_periodic *w = periodics [0]; 1328 ev_periodic *w = (ev_periodic *)periodics [0];
1052 1329
1053 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1330 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1054 1331
1055 /* first reschedule or stop timer */ 1332 /* first reschedule or stop timer */
1056 if (w->reschedule_cb) 1333 if (w->reschedule_cb)
1057 { 1334 {
1058 ((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);
1059 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));
1060 downheap ((WT *)periodics, periodiccnt, 0); 1337 downheap (periodics, periodiccnt, 0);
1061 } 1338 }
1062 else if (w->interval) 1339 else if (w->interval)
1063 { 1340 {
1064 ((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;
1065 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));
1066 downheap ((WT *)periodics, periodiccnt, 0); 1344 downheap (periodics, periodiccnt, 0);
1067 } 1345 }
1068 else 1346 else
1069 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1347 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1070 1348
1071 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1349 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1072 } 1350 }
1073} 1351}
1074 1352
1075static void 1353static void noinline
1076periodics_reschedule (EV_P) 1354periodics_reschedule (EV_P)
1077{ 1355{
1078 int i; 1356 int i;
1079 1357
1080 /* adjust periodics after time jump */ 1358 /* adjust periodics after time jump */
1081 for (i = 0; i < periodiccnt; ++i) 1359 for (i = 0; i < periodiccnt; ++i)
1082 { 1360 {
1083 struct ev_periodic *w = periodics [i]; 1361 ev_periodic *w = (ev_periodic *)periodics [i];
1084 1362
1085 if (w->reschedule_cb) 1363 if (w->reschedule_cb)
1086 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1364 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1087 else if (w->interval) 1365 else if (w->interval)
1088 ((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;
1089 } 1367 }
1090 1368
1091 /* now rebuild the heap */ 1369 /* now rebuild the heap */
1092 for (i = periodiccnt >> 1; i--; ) 1370 for (i = periodiccnt >> 1; i--; )
1093 downheap ((WT *)periodics, periodiccnt, i); 1371 downheap (periodics, periodiccnt, i);
1094} 1372}
1095#endif 1373#endif
1096 1374
1097inline int 1375#if EV_IDLE_ENABLE
1098time_update_monotonic (EV_P) 1376void inline_size
1377idle_reify (EV_P)
1099{ 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
1100 mn_now = get_clock (); 1408 mn_now = get_clock ();
1101 1409
1410 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1411 /* interpolate in the meantime */
1102 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1412 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1103 { 1413 {
1104 ev_rt_now = rtmn_diff + mn_now; 1414 ev_rt_now = rtmn_diff + mn_now;
1105 return 0; 1415 return;
1106 } 1416 }
1107 else 1417
1108 {
1109 now_floor = mn_now; 1418 now_floor = mn_now;
1110 ev_rt_now = ev_time (); 1419 ev_rt_now = ev_time ();
1111 return 1;
1112 }
1113}
1114 1420
1115static void 1421 /* loop a few times, before making important decisions.
1116time_update (EV_P) 1422 * on the choice of "4": one iteration isn't enough,
1117{ 1423 * in case we get preempted during the calls to
1118 int i; 1424 * ev_time and get_clock. a second call is almost guaranteed
1119 1425 * to succeed in that case, though. and looping a few more times
1120#if EV_USE_MONOTONIC 1426 * doesn't hurt either as we only do this on time-jumps or
1121 if (expect_true (have_monotonic)) 1427 * in the unlikely event of having been preempted here.
1122 { 1428 */
1123 if (time_update_monotonic (EV_A)) 1429 for (i = 4; --i; )
1124 { 1430 {
1125 ev_tstamp odiff = rtmn_diff;
1126
1127 for (i = 4; --i; ) /* loop a few times, before making important decisions */
1128 {
1129 rtmn_diff = ev_rt_now - mn_now; 1431 rtmn_diff = ev_rt_now - mn_now;
1130 1432
1131 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1433 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1132 return; /* all is well */ 1434 return; /* all is well */
1133 1435
1134 ev_rt_now = ev_time (); 1436 ev_rt_now = ev_time ();
1135 mn_now = get_clock (); 1437 mn_now = get_clock ();
1136 now_floor = mn_now; 1438 now_floor = mn_now;
1137 } 1439 }
1138 1440
1139# 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
1140 periodics_reschedule (EV_A); 1455 periodics_reschedule (EV_A);
1141# endif 1456#endif
1142 /* no timer adjustment, as the monotonic clock doesn't jump */
1143 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1144 }
1145 }
1146 else
1147#endif
1148 {
1149 ev_rt_now = ev_time ();
1150
1151 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1152 {
1153#if EV_PERIODICS
1154 periodics_reschedule (EV_A);
1155#endif
1156
1157 /* 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 */
1158 for (i = 0; i < timercnt; ++i) 1458 for (i = 0; i < timercnt; ++i)
1159 ((WT)timers [i])->at += ev_rt_now - mn_now; 1459 ((WT)timers [i])->at += ev_rt_now - mn_now;
1160 } 1460 }
1161 1461
1162 mn_now = ev_rt_now; 1462 mn_now = ev_rt_now;
… …
1178static int loop_done; 1478static int loop_done;
1179 1479
1180void 1480void
1181ev_loop (EV_P_ int flags) 1481ev_loop (EV_P_ int flags)
1182{ 1482{
1183 double block;
1184 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1483 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1484 ? EVUNLOOP_ONE
1485 : EVUNLOOP_CANCEL;
1185 1486
1186 while (activecnt) 1487 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1488
1489 do
1187 { 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
1188 /* queue check watchers (and execute them) */ 1510 /* queue prepare watchers (and execute them) */
1189 if (expect_false (preparecnt)) 1511 if (expect_false (preparecnt))
1190 { 1512 {
1191 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1513 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1192 call_pending (EV_A); 1514 call_pending (EV_A);
1193 } 1515 }
1194 1516
1517 if (expect_false (!activecnt))
1518 break;
1519
1195 /* we might have forked, so reify kernel state if necessary */ 1520 /* we might have forked, so reify kernel state if necessary */
1196 if (expect_false (postfork)) 1521 if (expect_false (postfork))
1197 loop_fork (EV_A); 1522 loop_fork (EV_A);
1198 1523
1199 /* update fd-related kernel structures */ 1524 /* update fd-related kernel structures */
1200 fd_reify (EV_A); 1525 fd_reify (EV_A);
1201 1526
1202 /* calculate blocking time */ 1527 /* calculate blocking time */
1528 {
1529 ev_tstamp waittime = 0.;
1530 ev_tstamp sleeptime = 0.;
1203 1531
1204 /* we only need this for !monotonic clock or timers, but as we basically 1532 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1205 always have timers, we just calculate it always */
1206#if EV_USE_MONOTONIC
1207 if (expect_true (have_monotonic))
1208 time_update_monotonic (EV_A);
1209 else
1210#endif
1211 { 1533 {
1212 ev_rt_now = ev_time (); 1534 /* update time to cancel out callback processing overhead */
1213 mn_now = ev_rt_now; 1535 time_update (EV_A_ 1e100);
1214 }
1215 1536
1216 if (flags & EVLOOP_NONBLOCK || idlecnt)
1217 block = 0.;
1218 else
1219 {
1220 block = MAX_BLOCKTIME; 1537 waittime = MAX_BLOCKTIME;
1221 1538
1222 if (timercnt) 1539 if (timercnt)
1223 { 1540 {
1224 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1541 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1225 if (block > to) block = to; 1542 if (waittime > to) waittime = to;
1226 } 1543 }
1227 1544
1228#if EV_PERIODICS 1545#if EV_PERIODIC_ENABLE
1229 if (periodiccnt) 1546 if (periodiccnt)
1230 { 1547 {
1231 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;
1232 if (block > to) block = to; 1549 if (waittime > to) waittime = to;
1233 } 1550 }
1234#endif 1551#endif
1235 1552
1236 if (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 }
1237 } 1566 }
1238 1567
1239 method_poll (EV_A_ block); 1568 ++loop_count;
1569 backend_poll (EV_A_ waittime);
1240 1570
1241 /* update ev_rt_now, do magic */ 1571 /* update ev_rt_now, do magic */
1242 time_update (EV_A); 1572 time_update (EV_A_ waittime + sleeptime);
1573 }
1243 1574
1244 /* queue pending timers and reschedule them */ 1575 /* queue pending timers and reschedule them */
1245 timers_reify (EV_A); /* relative timers called last */ 1576 timers_reify (EV_A); /* relative timers called last */
1246#if EV_PERIODICS 1577#if EV_PERIODIC_ENABLE
1247 periodics_reify (EV_A); /* absolute timers called first */ 1578 periodics_reify (EV_A); /* absolute timers called first */
1248#endif 1579#endif
1249 1580
1581#if EV_IDLE_ENABLE
1250 /* queue idle watchers unless io or timers are pending */ 1582 /* queue idle watchers unless other events are pending */
1251 if (idlecnt && !any_pending (EV_A)) 1583 idle_reify (EV_A);
1252 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1584#endif
1253 1585
1254 /* queue check watchers, to be executed first */ 1586 /* queue check watchers, to be executed first */
1255 if (checkcnt) 1587 if (expect_false (checkcnt))
1256 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1588 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1257 1589
1258 call_pending (EV_A); 1590 call_pending (EV_A);
1259 1591
1260 if (loop_done)
1261 break;
1262 } 1592 }
1593 while (expect_true (activecnt && !loop_done));
1263 1594
1264 if (loop_done != 2) 1595 if (loop_done == EVUNLOOP_ONE)
1265 loop_done = 0; 1596 loop_done = EVUNLOOP_CANCEL;
1266} 1597}
1267 1598
1268void 1599void
1269ev_unloop (EV_P_ int how) 1600ev_unloop (EV_P_ int how)
1270{ 1601{
1271 loop_done = how; 1602 loop_done = how;
1272} 1603}
1273 1604
1274/*****************************************************************************/ 1605/*****************************************************************************/
1275 1606
1276inline void 1607void inline_size
1277wlist_add (WL *head, WL elem) 1608wlist_add (WL *head, WL elem)
1278{ 1609{
1279 elem->next = *head; 1610 elem->next = *head;
1280 *head = elem; 1611 *head = elem;
1281} 1612}
1282 1613
1283inline void 1614void inline_size
1284wlist_del (WL *head, WL elem) 1615wlist_del (WL *head, WL elem)
1285{ 1616{
1286 while (*head) 1617 while (*head)
1287 { 1618 {
1288 if (*head == elem) 1619 if (*head == elem)
… …
1293 1624
1294 head = &(*head)->next; 1625 head = &(*head)->next;
1295 } 1626 }
1296} 1627}
1297 1628
1298inline void 1629void inline_speed
1299ev_clear_pending (EV_P_ W w) 1630clear_pending (EV_P_ W w)
1300{ 1631{
1301 if (w->pending) 1632 if (w->pending)
1302 { 1633 {
1303 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1634 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1304 w->pending = 0; 1635 w->pending = 0;
1305 } 1636 }
1306} 1637}
1307 1638
1308inline 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
1309ev_start (EV_P_ W w, int active) 1666ev_start (EV_P_ W w, int active)
1310{ 1667{
1311 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1668 pri_adjust (EV_A_ w);
1312 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1313
1314 w->active = active; 1669 w->active = active;
1315 ev_ref (EV_A); 1670 ev_ref (EV_A);
1316} 1671}
1317 1672
1318inline void 1673void inline_size
1319ev_stop (EV_P_ W w) 1674ev_stop (EV_P_ W w)
1320{ 1675{
1321 ev_unref (EV_A); 1676 ev_unref (EV_A);
1322 w->active = 0; 1677 w->active = 0;
1323} 1678}
1324 1679
1325/*****************************************************************************/ 1680/*****************************************************************************/
1326 1681
1327void 1682void noinline
1328ev_io_start (EV_P_ struct ev_io *w) 1683ev_io_start (EV_P_ ev_io *w)
1329{ 1684{
1330 int fd = w->fd; 1685 int fd = w->fd;
1331 1686
1332 if (ev_is_active (w)) 1687 if (expect_false (ev_is_active (w)))
1333 return; 1688 return;
1334 1689
1335 assert (("ev_io_start called with negative fd", fd >= 0)); 1690 assert (("ev_io_start called with negative fd", fd >= 0));
1336 1691
1337 ev_start (EV_A_ (W)w, 1); 1692 ev_start (EV_A_ (W)w, 1);
1338 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1693 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1339 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1694 wlist_add (&anfds[fd].head, (WL)w);
1340 1695
1341 fd_change (EV_A_ fd); 1696 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1697 w->events &= ~EV_IOFDSET;
1342} 1698}
1343 1699
1344void 1700void noinline
1345ev_io_stop (EV_P_ struct ev_io *w) 1701ev_io_stop (EV_P_ ev_io *w)
1346{ 1702{
1347 ev_clear_pending (EV_A_ (W)w); 1703 clear_pending (EV_A_ (W)w);
1348 if (!ev_is_active (w)) 1704 if (expect_false (!ev_is_active (w)))
1349 return; 1705 return;
1350 1706
1351 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));
1352 1708
1353 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1709 wlist_del (&anfds[w->fd].head, (WL)w);
1354 ev_stop (EV_A_ (W)w); 1710 ev_stop (EV_A_ (W)w);
1355 1711
1356 fd_change (EV_A_ w->fd); 1712 fd_change (EV_A_ w->fd, 1);
1357} 1713}
1358 1714
1359void 1715void noinline
1360ev_timer_start (EV_P_ struct ev_timer *w) 1716ev_timer_start (EV_P_ ev_timer *w)
1361{ 1717{
1362 if (ev_is_active (w)) 1718 if (expect_false (ev_is_active (w)))
1363 return; 1719 return;
1364 1720
1365 ((WT)w)->at += mn_now; 1721 ((WT)w)->at += mn_now;
1366 1722
1367 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.));
1368 1724
1369 ev_start (EV_A_ (W)w, ++timercnt); 1725 ev_start (EV_A_ (W)w, ++timercnt);
1370 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); 1726 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1371 timers [timercnt - 1] = w; 1727 timers [timercnt - 1] = (WT)w;
1372 upheap ((WT *)timers, timercnt - 1); 1728 upheap (timers, timercnt - 1);
1373 1729
1374 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1730 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1375} 1731}
1376 1732
1377void 1733void noinline
1378ev_timer_stop (EV_P_ struct ev_timer *w) 1734ev_timer_stop (EV_P_ ev_timer *w)
1379{ 1735{
1380 ev_clear_pending (EV_A_ (W)w); 1736 clear_pending (EV_A_ (W)w);
1381 if (!ev_is_active (w)) 1737 if (expect_false (!ev_is_active (w)))
1382 return; 1738 return;
1383 1739
1384 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1740 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1385 1741
1386 if (((W)w)->active < timercnt--) 1742 {
1743 int active = ((W)w)->active;
1744
1745 if (expect_true (--active < --timercnt))
1387 { 1746 {
1388 timers [((W)w)->active - 1] = timers [timercnt]; 1747 timers [active] = timers [timercnt];
1389 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1748 adjustheap (timers, timercnt, active);
1390 } 1749 }
1750 }
1391 1751
1392 ((WT)w)->at -= mn_now; 1752 ((WT)w)->at -= mn_now;
1393 1753
1394 ev_stop (EV_A_ (W)w); 1754 ev_stop (EV_A_ (W)w);
1395} 1755}
1396 1756
1397void 1757void noinline
1398ev_timer_again (EV_P_ struct ev_timer *w) 1758ev_timer_again (EV_P_ ev_timer *w)
1399{ 1759{
1400 if (ev_is_active (w)) 1760 if (ev_is_active (w))
1401 { 1761 {
1402 if (w->repeat) 1762 if (w->repeat)
1403 { 1763 {
1404 ((WT)w)->at = mn_now + w->repeat; 1764 ((WT)w)->at = mn_now + w->repeat;
1405 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1765 adjustheap (timers, timercnt, ((W)w)->active - 1);
1406 } 1766 }
1407 else 1767 else
1408 ev_timer_stop (EV_A_ w); 1768 ev_timer_stop (EV_A_ w);
1409 } 1769 }
1410 else if (w->repeat) 1770 else if (w->repeat)
… …
1412 w->at = w->repeat; 1772 w->at = w->repeat;
1413 ev_timer_start (EV_A_ w); 1773 ev_timer_start (EV_A_ w);
1414 } 1774 }
1415} 1775}
1416 1776
1417#if EV_PERIODICS 1777#if EV_PERIODIC_ENABLE
1418void 1778void noinline
1419ev_periodic_start (EV_P_ struct ev_periodic *w) 1779ev_periodic_start (EV_P_ ev_periodic *w)
1420{ 1780{
1421 if (ev_is_active (w)) 1781 if (expect_false (ev_is_active (w)))
1422 return; 1782 return;
1423 1783
1424 if (w->reschedule_cb) 1784 if (w->reschedule_cb)
1425 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1785 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1426 else if (w->interval) 1786 else if (w->interval)
1427 { 1787 {
1428 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.));
1429 /* 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 */
1430 ((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;
1431 } 1791 }
1792 else
1793 ((WT)w)->at = w->offset;
1432 1794
1433 ev_start (EV_A_ (W)w, ++periodiccnt); 1795 ev_start (EV_A_ (W)w, ++periodiccnt);
1434 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); 1796 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1435 periodics [periodiccnt - 1] = w; 1797 periodics [periodiccnt - 1] = (WT)w;
1436 upheap ((WT *)periodics, periodiccnt - 1); 1798 upheap (periodics, periodiccnt - 1);
1437 1799
1438 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1800 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1439} 1801}
1440 1802
1441void 1803void noinline
1442ev_periodic_stop (EV_P_ struct ev_periodic *w) 1804ev_periodic_stop (EV_P_ ev_periodic *w)
1443{ 1805{
1444 ev_clear_pending (EV_A_ (W)w); 1806 clear_pending (EV_A_ (W)w);
1445 if (!ev_is_active (w)) 1807 if (expect_false (!ev_is_active (w)))
1446 return; 1808 return;
1447 1809
1448 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1810 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1449 1811
1450 if (((W)w)->active < periodiccnt--) 1812 {
1813 int active = ((W)w)->active;
1814
1815 if (expect_true (--active < --periodiccnt))
1451 { 1816 {
1452 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1817 periodics [active] = periodics [periodiccnt];
1453 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1818 adjustheap (periodics, periodiccnt, active);
1454 } 1819 }
1820 }
1455 1821
1456 ev_stop (EV_A_ (W)w); 1822 ev_stop (EV_A_ (W)w);
1457} 1823}
1458 1824
1459void 1825void noinline
1460ev_periodic_again (EV_P_ struct ev_periodic *w) 1826ev_periodic_again (EV_P_ ev_periodic *w)
1461{ 1827{
1462 /* TODO: use adjustheap and recalculation */ 1828 /* TODO: use adjustheap and recalculation */
1463 ev_periodic_stop (EV_A_ w); 1829 ev_periodic_stop (EV_A_ w);
1464 ev_periodic_start (EV_A_ w); 1830 ev_periodic_start (EV_A_ w);
1465} 1831}
1466#endif 1832#endif
1467 1833
1468void
1469ev_idle_start (EV_P_ struct ev_idle *w)
1470{
1471 if (ev_is_active (w))
1472 return;
1473
1474 ev_start (EV_A_ (W)w, ++idlecnt);
1475 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1476 idles [idlecnt - 1] = w;
1477}
1478
1479void
1480ev_idle_stop (EV_P_ struct ev_idle *w)
1481{
1482 ev_clear_pending (EV_A_ (W)w);
1483 if (!ev_is_active (w))
1484 return;
1485
1486 idles [((W)w)->active - 1] = idles [--idlecnt];
1487 ev_stop (EV_A_ (W)w);
1488}
1489
1490void
1491ev_prepare_start (EV_P_ struct ev_prepare *w)
1492{
1493 if (ev_is_active (w))
1494 return;
1495
1496 ev_start (EV_A_ (W)w, ++preparecnt);
1497 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1498 prepares [preparecnt - 1] = w;
1499}
1500
1501void
1502ev_prepare_stop (EV_P_ struct ev_prepare *w)
1503{
1504 ev_clear_pending (EV_A_ (W)w);
1505 if (!ev_is_active (w))
1506 return;
1507
1508 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1509 ev_stop (EV_A_ (W)w);
1510}
1511
1512void
1513ev_check_start (EV_P_ struct ev_check *w)
1514{
1515 if (ev_is_active (w))
1516 return;
1517
1518 ev_start (EV_A_ (W)w, ++checkcnt);
1519 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1520 checks [checkcnt - 1] = w;
1521}
1522
1523void
1524ev_check_stop (EV_P_ struct ev_check *w)
1525{
1526 ev_clear_pending (EV_A_ (W)w);
1527 if (!ev_is_active (w))
1528 return;
1529
1530 checks [((W)w)->active - 1] = checks [--checkcnt];
1531 ev_stop (EV_A_ (W)w);
1532}
1533
1534#ifndef SA_RESTART 1834#ifndef SA_RESTART
1535# define SA_RESTART 0 1835# define SA_RESTART 0
1536#endif 1836#endif
1537 1837
1538void 1838void noinline
1539ev_signal_start (EV_P_ struct ev_signal *w) 1839ev_signal_start (EV_P_ ev_signal *w)
1540{ 1840{
1541#if EV_MULTIPLICITY 1841#if EV_MULTIPLICITY
1542 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));
1543#endif 1843#endif
1544 if (ev_is_active (w)) 1844 if (expect_false (ev_is_active (w)))
1545 return; 1845 return;
1546 1846
1547 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));
1548 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
1549 ev_start (EV_A_ (W)w, 1); 1863 ev_start (EV_A_ (W)w, 1);
1550 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1551 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1864 wlist_add (&signals [w->signum - 1].head, (WL)w);
1552 1865
1553 if (!((WL)w)->next) 1866 if (!((WL)w)->next)
1554 { 1867 {
1555#if _WIN32 1868#if _WIN32
1556 signal (w->signum, sighandler); 1869 signal (w->signum, sighandler);
… …
1562 sigaction (w->signum, &sa, 0); 1875 sigaction (w->signum, &sa, 0);
1563#endif 1876#endif
1564 } 1877 }
1565} 1878}
1566 1879
1567void 1880void noinline
1568ev_signal_stop (EV_P_ struct ev_signal *w) 1881ev_signal_stop (EV_P_ ev_signal *w)
1569{ 1882{
1570 ev_clear_pending (EV_A_ (W)w); 1883 clear_pending (EV_A_ (W)w);
1571 if (!ev_is_active (w)) 1884 if (expect_false (!ev_is_active (w)))
1572 return; 1885 return;
1573 1886
1574 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1887 wlist_del (&signals [w->signum - 1].head, (WL)w);
1575 ev_stop (EV_A_ (W)w); 1888 ev_stop (EV_A_ (W)w);
1576 1889
1577 if (!signals [w->signum - 1].head) 1890 if (!signals [w->signum - 1].head)
1578 signal (w->signum, SIG_DFL); 1891 signal (w->signum, SIG_DFL);
1579} 1892}
1580 1893
1581void 1894void
1582ev_child_start (EV_P_ struct ev_child *w) 1895ev_child_start (EV_P_ ev_child *w)
1583{ 1896{
1584#if EV_MULTIPLICITY 1897#if EV_MULTIPLICITY
1585 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));
1586#endif 1899#endif
1587 if (ev_is_active (w)) 1900 if (expect_false (ev_is_active (w)))
1588 return; 1901 return;
1589 1902
1590 ev_start (EV_A_ (W)w, 1); 1903 ev_start (EV_A_ (W)w, 1);
1591 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1904 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1592} 1905}
1593 1906
1594void 1907void
1595ev_child_stop (EV_P_ struct ev_child *w) 1908ev_child_stop (EV_P_ ev_child *w)
1596{ 1909{
1597 ev_clear_pending (EV_A_ (W)w); 1910 clear_pending (EV_A_ (W)w);
1598 if (!ev_is_active (w)) 1911 if (expect_false (!ev_is_active (w)))
1599 return; 1912 return;
1600 1913
1601 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1914 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1602 ev_stop (EV_A_ (W)w); 1915 ev_stop (EV_A_ (W)w);
1603} 1916}
1604 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
1605/*****************************************************************************/ 2371/*****************************************************************************/
1606 2372
1607struct ev_once 2373struct ev_once
1608{ 2374{
1609 struct ev_io io; 2375 ev_io io;
1610 struct ev_timer to; 2376 ev_timer to;
1611 void (*cb)(int revents, void *arg); 2377 void (*cb)(int revents, void *arg);
1612 void *arg; 2378 void *arg;
1613}; 2379};
1614 2380
1615static void 2381static void
… …
1624 2390
1625 cb (revents, arg); 2391 cb (revents, arg);
1626} 2392}
1627 2393
1628static void 2394static void
1629once_cb_io (EV_P_ struct ev_io *w, int revents) 2395once_cb_io (EV_P_ ev_io *w, int revents)
1630{ 2396{
1631 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);
1632} 2398}
1633 2399
1634static void 2400static void
1635once_cb_to (EV_P_ struct ev_timer *w, int revents) 2401once_cb_to (EV_P_ ev_timer *w, int revents)
1636{ 2402{
1637 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);
1638} 2404}
1639 2405
1640void 2406void
1641ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2407ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1642{ 2408{
1643 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2409 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1644 2410
1645 if (!once) 2411 if (expect_false (!once))
2412 {
1646 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2413 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1647 else 2414 return;
1648 { 2415 }
2416
1649 once->cb = cb; 2417 once->cb = cb;
1650 once->arg = arg; 2418 once->arg = arg;
1651 2419
1652 ev_init (&once->io, once_cb_io); 2420 ev_init (&once->io, once_cb_io);
1653 if (fd >= 0) 2421 if (fd >= 0)
1654 { 2422 {
1655 ev_io_set (&once->io, fd, events); 2423 ev_io_set (&once->io, fd, events);
1656 ev_io_start (EV_A_ &once->io); 2424 ev_io_start (EV_A_ &once->io);
1657 } 2425 }
1658 2426
1659 ev_init (&once->to, once_cb_to); 2427 ev_init (&once->to, once_cb_to);
1660 if (timeout >= 0.) 2428 if (timeout >= 0.)
1661 { 2429 {
1662 ev_timer_set (&once->to, timeout, 0.); 2430 ev_timer_set (&once->to, timeout, 0.);
1663 ev_timer_start (EV_A_ &once->to); 2431 ev_timer_start (EV_A_ &once->to);
1664 }
1665 } 2432 }
1666} 2433}
2434
2435#if EV_MULTIPLICITY
2436 #include "ev_wrap.h"
2437#endif
1667 2438
1668#ifdef __cplusplus 2439#ifdef __cplusplus
1669} 2440}
1670#endif 2441#endif
1671 2442

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