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Comparing libev/ev.c (file contents):
Revision 1.103 by root, Mon Nov 12 00:31:08 2007 UTC vs.
Revision 1.194 by root, Sat Dec 22 07:03:31 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
83# ifndef EV_USE_EPOLL
84# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
85# define EV_USE_EPOLL 1
86# else
87# define EV_USE_EPOLL 0
88# endif
89# endif
90
91# ifndef EV_USE_KQUEUE
60# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) 92# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61# define EV_USE_KQUEUE 1 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
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
62# endif 113# endif
63 114
64#endif 115#endif
65 116
66#include <math.h> 117#include <math.h>
… …
75#include <sys/types.h> 126#include <sys/types.h>
76#include <time.h> 127#include <time.h>
77 128
78#include <signal.h> 129#include <signal.h>
79 130
131#ifdef EV_H
132# include EV_H
133#else
134# include "ev.h"
135#endif
136
80#ifndef _WIN32 137#ifndef _WIN32
81# include <unistd.h>
82# include <sys/time.h> 138# include <sys/time.h>
83# include <sys/wait.h> 139# include <sys/wait.h>
140# include <unistd.h>
84#else 141#else
85# define WIN32_LEAN_AND_MEAN 142# define WIN32_LEAN_AND_MEAN
86# include <windows.h> 143# include <windows.h>
87# ifndef EV_SELECT_IS_WINSOCKET 144# ifndef EV_SELECT_IS_WINSOCKET
88# define EV_SELECT_IS_WINSOCKET 1 145# define EV_SELECT_IS_WINSOCKET 1
… …
90#endif 147#endif
91 148
92/**/ 149/**/
93 150
94#ifndef EV_USE_MONOTONIC 151#ifndef EV_USE_MONOTONIC
95# define EV_USE_MONOTONIC 1 152# define EV_USE_MONOTONIC 0
153#endif
154
155#ifndef EV_USE_REALTIME
156# define EV_USE_REALTIME 0
157#endif
158
159#ifndef EV_USE_NANOSLEEP
160# define EV_USE_NANOSLEEP 0
96#endif 161#endif
97 162
98#ifndef EV_USE_SELECT 163#ifndef EV_USE_SELECT
99# define EV_USE_SELECT 1 164# define EV_USE_SELECT 1
100#endif 165#endif
101 166
102#ifndef EV_USE_POLL 167#ifndef EV_USE_POLL
103# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ 168# ifdef _WIN32
169# define EV_USE_POLL 0
170# else
171# define EV_USE_POLL 1
172# endif
104#endif 173#endif
105 174
106#ifndef EV_USE_EPOLL 175#ifndef EV_USE_EPOLL
107# define EV_USE_EPOLL 0 176# define EV_USE_EPOLL 0
108#endif 177#endif
109 178
110#ifndef EV_USE_KQUEUE 179#ifndef EV_USE_KQUEUE
111# define EV_USE_KQUEUE 0 180# define EV_USE_KQUEUE 0
112#endif 181#endif
113 182
114#ifndef EV_USE_REALTIME 183#ifndef EV_USE_PORT
115# define EV_USE_REALTIME 1 184# define EV_USE_PORT 0
185#endif
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
116#endif 205#endif
117 206
118/**/ 207/**/
119 208
120#ifndef CLOCK_MONOTONIC 209#ifndef CLOCK_MONOTONIC
… …
125#ifndef CLOCK_REALTIME 214#ifndef CLOCK_REALTIME
126# undef EV_USE_REALTIME 215# undef EV_USE_REALTIME
127# define EV_USE_REALTIME 0 216# define EV_USE_REALTIME 0
128#endif 217#endif
129 218
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
130#if EV_SELECT_IS_WINSOCKET 234#if EV_SELECT_IS_WINSOCKET
131# include <winsock.h> 235# include <winsock.h>
132#endif 236#endif
133 237
134/**/ 238/**/
135 239
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
136#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) */
137#define MAX_BLOCKTIME 59.731 /* 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) */
138#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
139/*#define CLEANUP_INTERVAL 300. /* 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 */
140 253
141#ifdef EV_H
142# include EV_H
143#else
144# include "ev.h"
145#endif
146
147#if __GNUC__ >= 3 254#if __GNUC__ >= 4
148# define expect(expr,value) __builtin_expect ((expr),(value)) 255# define expect(expr,value) __builtin_expect ((expr),(value))
149# define inline inline 256# define noinline __attribute__ ((noinline))
150#else 257#else
151# define expect(expr,value) (expr) 258# define expect(expr,value) (expr)
152# define inline static 259# define noinline
260# if __STDC_VERSION__ < 199901L
261# define inline
262# endif
153#endif 263#endif
154 264
155#define expect_false(expr) expect ((expr) != 0, 0) 265#define expect_false(expr) expect ((expr) != 0, 0)
156#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
157 274
158#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 275#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
159#define ABSPRI(w) ((w)->priority - EV_MINPRI) 276#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
160 277
161#define EMPTY /* required for microsofts broken pseudo-c compiler */ 278#define EMPTY /* required for microsofts broken pseudo-c compiler */
279#define EMPTY2(a,b) /* used to suppress some warnings */
162 280
163typedef struct ev_watcher *W; 281typedef ev_watcher *W;
164typedef struct ev_watcher_list *WL; 282typedef ev_watcher_list *WL;
165typedef struct ev_watcher_time *WT; 283typedef ev_watcher_time *WT;
166 284
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 */
167static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 287static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
168 288
169#ifdef _WIN32 289#ifdef _WIN32
170# include "ev_win32.c" 290# include "ev_win32.c"
171#endif 291#endif
172 292
173/*****************************************************************************/ 293/*****************************************************************************/
174 294
175static void (*syserr_cb)(const char *msg); 295static void (*syserr_cb)(const char *msg);
176 296
297void
177void ev_set_syserr_cb (void (*cb)(const char *msg)) 298ev_set_syserr_cb (void (*cb)(const char *msg))
178{ 299{
179 syserr_cb = cb; 300 syserr_cb = cb;
180} 301}
181 302
182static void 303static void noinline
183syserr (const char *msg) 304syserr (const char *msg)
184{ 305{
185 if (!msg) 306 if (!msg)
186 msg = "(libev) system error"; 307 msg = "(libev) system error";
187 308
… …
194 } 315 }
195} 316}
196 317
197static void *(*alloc)(void *ptr, long size); 318static void *(*alloc)(void *ptr, long size);
198 319
320void
199void ev_set_allocator (void *(*cb)(void *ptr, long size)) 321ev_set_allocator (void *(*cb)(void *ptr, long size))
200{ 322{
201 alloc = cb; 323 alloc = cb;
202} 324}
203 325
204static void * 326inline_speed void *
205ev_realloc (void *ptr, long size) 327ev_realloc (void *ptr, long size)
206{ 328{
207 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 329 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
208 330
209 if (!ptr && size) 331 if (!ptr && size)
… …
233typedef struct 355typedef struct
234{ 356{
235 W w; 357 W w;
236 int events; 358 int events;
237} ANPENDING; 359} ANPENDING;
360
361#if EV_USE_INOTIFY
362typedef struct
363{
364 WL head;
365} ANFS;
366#endif
238 367
239#if EV_MULTIPLICITY 368#if EV_MULTIPLICITY
240 369
241 struct ev_loop 370 struct ev_loop
242 { 371 {
… …
246 #include "ev_vars.h" 375 #include "ev_vars.h"
247 #undef VAR 376 #undef VAR
248 }; 377 };
249 #include "ev_wrap.h" 378 #include "ev_wrap.h"
250 379
251 struct ev_loop default_loop_struct; 380 static struct ev_loop default_loop_struct;
252 static struct ev_loop *default_loop; 381 struct ev_loop *ev_default_loop_ptr;
253 382
254#else 383#else
255 384
256 ev_tstamp ev_rt_now; 385 ev_tstamp ev_rt_now;
257 #define VAR(name,decl) static decl; 386 #define VAR(name,decl) static decl;
258 #include "ev_vars.h" 387 #include "ev_vars.h"
259 #undef VAR 388 #undef VAR
260 389
261 static int default_loop; 390 static int ev_default_loop_ptr;
262 391
263#endif 392#endif
264 393
265/*****************************************************************************/ 394/*****************************************************************************/
266 395
… …
276 gettimeofday (&tv, 0); 405 gettimeofday (&tv, 0);
277 return tv.tv_sec + tv.tv_usec * 1e-6; 406 return tv.tv_sec + tv.tv_usec * 1e-6;
278#endif 407#endif
279} 408}
280 409
281inline ev_tstamp 410ev_tstamp inline_size
282get_clock (void) 411get_clock (void)
283{ 412{
284#if EV_USE_MONOTONIC 413#if EV_USE_MONOTONIC
285 if (expect_true (have_monotonic)) 414 if (expect_true (have_monotonic))
286 { 415 {
… …
299{ 428{
300 return ev_rt_now; 429 return ev_rt_now;
301} 430}
302#endif 431#endif
303 432
304#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}
305 487
306#define array_needsize(type,base,cur,cnt,init) \ 488#define array_needsize(type,base,cur,cnt,init) \
307 if (expect_false ((cnt) > cur)) \ 489 if (expect_false ((cnt) > (cur))) \
308 { \ 490 { \
309 int newcnt = cur; \ 491 int ocur_ = (cur); \
310 do \ 492 (base) = (type *)array_realloc \
311 { \ 493 (sizeof (type), (base), &(cur), (cnt)); \
312 newcnt = array_roundsize (type, newcnt << 1); \ 494 init ((base) + (ocur_), (cur) - ocur_); \
313 } \
314 while ((cnt) > newcnt); \
315 \
316 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
317 init (base + cur, newcnt - cur); \
318 cur = newcnt; \
319 } 495 }
320 496
497#if 0
321#define array_slim(type,stem) \ 498#define array_slim(type,stem) \
322 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 499 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
323 { \ 500 { \
324 stem ## max = array_roundsize (stem ## cnt >> 1); \ 501 stem ## max = array_roundsize (stem ## cnt >> 1); \
325 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 502 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
326 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 503 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
327 } 504 }
505#endif
328 506
329#define array_free(stem, idx) \ 507#define array_free(stem, idx) \
330 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;
331 509
332/*****************************************************************************/ 510/*****************************************************************************/
333 511
334static 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
335anfds_init (ANFD *base, int count) 541anfds_init (ANFD *base, int count)
336{ 542{
337 while (count--) 543 while (count--)
338 { 544 {
339 base->head = 0; 545 base->head = 0;
… …
342 548
343 ++base; 549 ++base;
344 } 550 }
345} 551}
346 552
347void 553void inline_speed
348ev_feed_event (EV_P_ void *w, int revents)
349{
350 W w_ = (W)w;
351
352 if (w_->pending)
353 {
354 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
355 return;
356 }
357
358 w_->pending = ++pendingcnt [ABSPRI (w_)];
359 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
360 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
361 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
362}
363
364static void
365queue_events (EV_P_ W *events, int eventcnt, int type)
366{
367 int i;
368
369 for (i = 0; i < eventcnt; ++i)
370 ev_feed_event (EV_A_ events [i], type);
371}
372
373inline void
374fd_event (EV_P_ int fd, int revents) 554fd_event (EV_P_ int fd, int revents)
375{ 555{
376 ANFD *anfd = anfds + fd; 556 ANFD *anfd = anfds + fd;
377 struct ev_io *w; 557 ev_io *w;
378 558
379 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)
380 { 560 {
381 int ev = w->events & revents; 561 int ev = w->events & revents;
382 562
383 if (ev) 563 if (ev)
384 ev_feed_event (EV_A_ (W)w, ev); 564 ev_feed_event (EV_A_ (W)w, ev);
… …
386} 566}
387 567
388void 568void
389ev_feed_fd_event (EV_P_ int fd, int revents) 569ev_feed_fd_event (EV_P_ int fd, int revents)
390{ 570{
571 if (fd >= 0 && fd < anfdmax)
391 fd_event (EV_A_ fd, revents); 572 fd_event (EV_A_ fd, revents);
392} 573}
393 574
394/*****************************************************************************/ 575void inline_size
395
396static void
397fd_reify (EV_P) 576fd_reify (EV_P)
398{ 577{
399 int i; 578 int i;
400 579
401 for (i = 0; i < fdchangecnt; ++i) 580 for (i = 0; i < fdchangecnt; ++i)
402 { 581 {
403 int fd = fdchanges [i]; 582 int fd = fdchanges [i];
404 ANFD *anfd = anfds + fd; 583 ANFD *anfd = anfds + fd;
405 struct ev_io *w; 584 ev_io *w;
406 585
407 int events = 0; 586 unsigned char events = 0;
408 587
409 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)
410 events |= w->events; 589 events |= (unsigned char)w->events;
411 590
412#if EV_SELECT_IS_WINSOCKET 591#if EV_SELECT_IS_WINSOCKET
413 if (events) 592 if (events)
414 { 593 {
415 unsigned long argp; 594 unsigned long argp;
416 anfd->handle = _get_osfhandle (fd); 595 anfd->handle = _get_osfhandle (fd);
417 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));
418 } 597 }
419#endif 598#endif
420 599
600 {
601 unsigned char o_events = anfd->events;
602 unsigned char o_reify = anfd->reify;
603
421 anfd->reify = 0; 604 anfd->reify = 0;
422
423 method_modify (EV_A_ fd, anfd->events, events);
424 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 }
425 } 610 }
426 611
427 fdchangecnt = 0; 612 fdchangecnt = 0;
428} 613}
429 614
430static void 615void inline_size
431fd_change (EV_P_ int fd) 616fd_change (EV_P_ int fd, int flags)
432{ 617{
433 if (anfds [fd].reify) 618 unsigned char reify = anfds [fd].reify;
434 return;
435
436 anfds [fd].reify = 1; 619 anfds [fd].reify |= flags;
437 620
621 if (expect_true (!reify))
622 {
438 ++fdchangecnt; 623 ++fdchangecnt;
439 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 624 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
440 fdchanges [fdchangecnt - 1] = fd; 625 fdchanges [fdchangecnt - 1] = fd;
626 }
441} 627}
442 628
443static void 629void inline_speed
444fd_kill (EV_P_ int fd) 630fd_kill (EV_P_ int fd)
445{ 631{
446 struct ev_io *w; 632 ev_io *w;
447 633
448 while ((w = (struct ev_io *)anfds [fd].head)) 634 while ((w = (ev_io *)anfds [fd].head))
449 { 635 {
450 ev_io_stop (EV_A_ w); 636 ev_io_stop (EV_A_ w);
451 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);
452 } 638 }
453} 639}
454 640
455static int 641int inline_size
456fd_valid (int fd) 642fd_valid (int fd)
457{ 643{
458#ifdef _WIN32 644#ifdef _WIN32
459 return _get_osfhandle (fd) != -1; 645 return _get_osfhandle (fd) != -1;
460#else 646#else
461 return fcntl (fd, F_GETFD) != -1; 647 return fcntl (fd, F_GETFD) != -1;
462#endif 648#endif
463} 649}
464 650
465/* called on EBADF to verify fds */ 651/* called on EBADF to verify fds */
466static void 652static void noinline
467fd_ebadf (EV_P) 653fd_ebadf (EV_P)
468{ 654{
469 int fd; 655 int fd;
470 656
471 for (fd = 0; fd < anfdmax; ++fd) 657 for (fd = 0; fd < anfdmax; ++fd)
… …
473 if (!fd_valid (fd) == -1 && errno == EBADF) 659 if (!fd_valid (fd) == -1 && errno == EBADF)
474 fd_kill (EV_A_ fd); 660 fd_kill (EV_A_ fd);
475} 661}
476 662
477/* 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 */
478static void 664static void noinline
479fd_enomem (EV_P) 665fd_enomem (EV_P)
480{ 666{
481 int fd; 667 int fd;
482 668
483 for (fd = anfdmax; fd--; ) 669 for (fd = anfdmax; fd--; )
… …
486 fd_kill (EV_A_ fd); 672 fd_kill (EV_A_ fd);
487 return; 673 return;
488 } 674 }
489} 675}
490 676
491/* 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 */
492static void 678static void noinline
493fd_rearm_all (EV_P) 679fd_rearm_all (EV_P)
494{ 680{
495 int fd; 681 int fd;
496 682
497 /* this should be highly optimised to not do anything but set a flag */
498 for (fd = 0; fd < anfdmax; ++fd) 683 for (fd = 0; fd < anfdmax; ++fd)
499 if (anfds [fd].events) 684 if (anfds [fd].events)
500 { 685 {
501 anfds [fd].events = 0; 686 anfds [fd].events = 0;
502 fd_change (EV_A_ fd); 687 fd_change (EV_A_ fd, EV_IOFDSET | 1);
503 } 688 }
504} 689}
505 690
506/*****************************************************************************/ 691/*****************************************************************************/
507 692
508static void 693void inline_speed
509upheap (WT *heap, int k) 694upheap (WT *heap, int k)
510{ 695{
511 WT w = heap [k]; 696 WT w = heap [k];
512 697
513 while (k && heap [k >> 1]->at > w->at) 698 while (k)
514 { 699 {
700 int p = (k - 1) >> 1;
701
702 if (heap [p]->at <= w->at)
703 break;
704
515 heap [k] = heap [k >> 1]; 705 heap [k] = heap [p];
516 ((W)heap [k])->active = k + 1; 706 ((W)heap [k])->active = k + 1;
517 k >>= 1; 707 k = p;
518 } 708 }
519 709
520 heap [k] = w; 710 heap [k] = w;
521 ((W)heap [k])->active = k + 1; 711 ((W)heap [k])->active = k + 1;
522
523} 712}
524 713
525static void 714void inline_speed
526downheap (WT *heap, int N, int k) 715downheap (WT *heap, int N, int k)
527{ 716{
528 WT w = heap [k]; 717 WT w = heap [k];
529 718
530 while (k < (N >> 1)) 719 for (;;)
531 { 720 {
532 int j = k << 1; 721 int c = (k << 1) + 1;
533 722
534 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 723 if (c >= N)
535 ++j;
536
537 if (w->at <= heap [j]->at)
538 break; 724 break;
539 725
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
540 heap [k] = heap [j]; 732 heap [k] = heap [c];
541 ((W)heap [k])->active = k + 1; 733 ((W)heap [k])->active = k + 1;
734
542 k = j; 735 k = c;
543 } 736 }
544 737
545 heap [k] = w; 738 heap [k] = w;
546 ((W)heap [k])->active = k + 1; 739 ((W)heap [k])->active = k + 1;
547} 740}
548 741
549inline void 742void inline_size
550adjustheap (WT *heap, int N, int k) 743adjustheap (WT *heap, int N, int k)
551{ 744{
552 upheap (heap, k); 745 upheap (heap, k);
553 downheap (heap, N, k); 746 downheap (heap, N, k);
554} 747}
… …
564static ANSIG *signals; 757static ANSIG *signals;
565static int signalmax; 758static int signalmax;
566 759
567static int sigpipe [2]; 760static int sigpipe [2];
568static sig_atomic_t volatile gotsig; 761static sig_atomic_t volatile gotsig;
569static struct ev_io sigev; 762static ev_io sigev;
570 763
571static void 764void inline_size
572signals_init (ANSIG *base, int count) 765signals_init (ANSIG *base, int count)
573{ 766{
574 while (count--) 767 while (count--)
575 { 768 {
576 base->head = 0; 769 base->head = 0;
… …
596 write (sigpipe [1], &signum, 1); 789 write (sigpipe [1], &signum, 1);
597 errno = old_errno; 790 errno = old_errno;
598 } 791 }
599} 792}
600 793
601void 794void noinline
602ev_feed_signal_event (EV_P_ int signum) 795ev_feed_signal_event (EV_P_ int signum)
603{ 796{
604 WL w; 797 WL w;
605 798
606#if EV_MULTIPLICITY 799#if EV_MULTIPLICITY
607 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 800 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
608#endif 801#endif
609 802
610 --signum; 803 --signum;
611 804
612 if (signum < 0 || signum >= signalmax) 805 if (signum < 0 || signum >= signalmax)
… …
617 for (w = signals [signum].head; w; w = w->next) 810 for (w = signals [signum].head; w; w = w->next)
618 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 811 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
619} 812}
620 813
621static void 814static void
622sigcb (EV_P_ struct ev_io *iow, int revents) 815sigcb (EV_P_ ev_io *iow, int revents)
623{ 816{
624 int signum; 817 int signum;
625 818
626 read (sigpipe [0], &revents, 1); 819 read (sigpipe [0], &revents, 1);
627 gotsig = 0; 820 gotsig = 0;
… …
629 for (signum = signalmax; signum--; ) 822 for (signum = signalmax; signum--; )
630 if (signals [signum].gotsig) 823 if (signals [signum].gotsig)
631 ev_feed_signal_event (EV_A_ signum + 1); 824 ev_feed_signal_event (EV_A_ signum + 1);
632} 825}
633 826
634inline void 827void inline_speed
635fd_intern (int fd) 828fd_intern (int fd)
636{ 829{
637#ifdef _WIN32 830#ifdef _WIN32
638 int arg = 1; 831 int arg = 1;
639 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 832 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
641 fcntl (fd, F_SETFD, FD_CLOEXEC); 834 fcntl (fd, F_SETFD, FD_CLOEXEC);
642 fcntl (fd, F_SETFL, O_NONBLOCK); 835 fcntl (fd, F_SETFL, O_NONBLOCK);
643#endif 836#endif
644} 837}
645 838
646static void 839static void noinline
647siginit (EV_P) 840siginit (EV_P)
648{ 841{
649 fd_intern (sigpipe [0]); 842 fd_intern (sigpipe [0]);
650 fd_intern (sigpipe [1]); 843 fd_intern (sigpipe [1]);
651 844
… …
654 ev_unref (EV_A); /* child watcher should not keep loop alive */ 847 ev_unref (EV_A); /* child watcher should not keep loop alive */
655} 848}
656 849
657/*****************************************************************************/ 850/*****************************************************************************/
658 851
659static struct ev_child *childs [PID_HASHSIZE]; 852static WL childs [EV_PID_HASHSIZE];
660 853
661#ifndef _WIN32 854#ifndef _WIN32
662 855
663static 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}
664 872
665#ifndef WCONTINUED 873#ifndef WCONTINUED
666# define WCONTINUED 0 874# define WCONTINUED 0
667#endif 875#endif
668 876
669static void 877static void
670child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
671{
672 struct ev_child *w;
673
674 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
675 if (w->pid == pid || !w->pid)
676 {
677 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
678 w->rpid = pid;
679 w->rstatus = status;
680 ev_feed_event (EV_A_ (W)w, EV_CHILD);
681 }
682}
683
684static void
685childcb (EV_P_ struct ev_signal *sw, int revents) 878childcb (EV_P_ ev_signal *sw, int revents)
686{ 879{
687 int pid, status; 880 int pid, status;
688 881
882 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
689 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 883 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
690 { 884 if (!WCONTINUED
885 || errno != EINVAL
886 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
887 return;
888
691 /* 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 */
692 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 891 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
693 892
694 child_reap (EV_A_ sw, pid, pid, status); 893 child_reap (EV_A_ sw, pid, pid, status);
894 if (EV_PID_HASHSIZE > 1)
695 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 */
696 }
697} 896}
698 897
699#endif 898#endif
700 899
701/*****************************************************************************/ 900/*****************************************************************************/
702 901
902#if EV_USE_PORT
903# include "ev_port.c"
904#endif
703#if EV_USE_KQUEUE 905#if EV_USE_KQUEUE
704# include "ev_kqueue.c" 906# include "ev_kqueue.c"
705#endif 907#endif
706#if EV_USE_EPOLL 908#if EV_USE_EPOLL
707# include "ev_epoll.c" 909# include "ev_epoll.c"
… …
724{ 926{
725 return EV_VERSION_MINOR; 927 return EV_VERSION_MINOR;
726} 928}
727 929
728/* 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 */
729static int 931int inline_size
730enable_secure (void) 932enable_secure (void)
731{ 933{
732#ifdef _WIN32 934#ifdef _WIN32
733 return 0; 935 return 0;
734#else 936#else
735 return getuid () != geteuid () 937 return getuid () != geteuid ()
736 || getgid () != getegid (); 938 || getgid () != getegid ();
737#endif 939#endif
738} 940}
739 941
740int 942unsigned int
741ev_method (EV_P) 943ev_supported_backends (void)
742{ 944{
743 return method; 945 unsigned int flags = 0;
744}
745 946
746static void 947 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
747loop_init (EV_P_ int methods) 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)
748{ 958{
749 if (!method) 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 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
978 return EVBACKEND_KQUEUE
979 | EVBACKEND_PORT;
980}
981
982unsigned int
983ev_backend (EV_P)
984{
985 return backend;
986}
987
988unsigned int
989ev_loop_count (EV_P)
990{
991 return loop_count;
992}
993
994void
995ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
996{
997 io_blocktime = interval;
998}
999
1000void
1001ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1002{
1003 timeout_blocktime = interval;
1004}
1005
1006static void noinline
1007loop_init (EV_P_ unsigned int flags)
1008{
1009 if (!backend)
750 { 1010 {
751#if EV_USE_MONOTONIC 1011#if EV_USE_MONOTONIC
752 { 1012 {
753 struct timespec ts; 1013 struct timespec ts;
754 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1014 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
759 ev_rt_now = ev_time (); 1019 ev_rt_now = ev_time ();
760 mn_now = get_clock (); 1020 mn_now = get_clock ();
761 now_floor = mn_now; 1021 now_floor = mn_now;
762 rtmn_diff = ev_rt_now - mn_now; 1022 rtmn_diff = ev_rt_now - mn_now;
763 1023
764 if (methods == EVMETHOD_AUTO) 1024 io_blocktime = 0.;
765 if (!enable_secure () && getenv ("LIBEV_METHODS")) 1025 timeout_blocktime = 0.;
1026
1027 /* pid check not overridable via env */
1028#ifndef _WIN32
1029 if (flags & EVFLAG_FORKCHECK)
1030 curpid = getpid ();
1031#endif
1032
1033 if (!(flags & EVFLAG_NOENV)
1034 && !enable_secure ()
1035 && getenv ("LIBEV_FLAGS"))
766 methods = atoi (getenv ("LIBEV_METHODS")); 1036 flags = atoi (getenv ("LIBEV_FLAGS"));
767 else
768 methods = EVMETHOD_ANY;
769 1037
770 method = 0; 1038 if (!(flags & 0x0000ffffUL))
1039 flags |= ev_recommended_backends ();
1040
1041 backend = 0;
1042 backend_fd = -1;
1043#if EV_USE_INOTIFY
1044 fs_fd = -2;
1045#endif
1046
1047#if EV_USE_PORT
1048 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1049#endif
771#if EV_USE_KQUEUE 1050#if EV_USE_KQUEUE
772 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 1051 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
773#endif 1052#endif
774#if EV_USE_EPOLL 1053#if EV_USE_EPOLL
775 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 1054 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
776#endif 1055#endif
777#if EV_USE_POLL 1056#if EV_USE_POLL
778 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 1057 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
779#endif 1058#endif
780#if EV_USE_SELECT 1059#if EV_USE_SELECT
781 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 1060 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
782#endif 1061#endif
783 1062
784 ev_init (&sigev, sigcb); 1063 ev_init (&sigev, sigcb);
785 ev_set_priority (&sigev, EV_MAXPRI); 1064 ev_set_priority (&sigev, EV_MAXPRI);
786 } 1065 }
787} 1066}
788 1067
789void 1068static void noinline
790loop_destroy (EV_P) 1069loop_destroy (EV_P)
791{ 1070{
792 int i; 1071 int i;
793 1072
1073#if EV_USE_INOTIFY
1074 if (fs_fd >= 0)
1075 close (fs_fd);
1076#endif
1077
1078 if (backend_fd >= 0)
1079 close (backend_fd);
1080
1081#if EV_USE_PORT
1082 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1083#endif
794#if EV_USE_KQUEUE 1084#if EV_USE_KQUEUE
795 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1085 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
796#endif 1086#endif
797#if EV_USE_EPOLL 1087#if EV_USE_EPOLL
798 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1088 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
799#endif 1089#endif
800#if EV_USE_POLL 1090#if EV_USE_POLL
801 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1091 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
802#endif 1092#endif
803#if EV_USE_SELECT 1093#if EV_USE_SELECT
804 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1094 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
805#endif 1095#endif
806 1096
807 for (i = NUMPRI; i--; ) 1097 for (i = NUMPRI; i--; )
1098 {
808 array_free (pending, [i]); 1099 array_free (pending, [i]);
1100#if EV_IDLE_ENABLE
1101 array_free (idle, [i]);
1102#endif
1103 }
1104
1105 ev_free (anfds); anfdmax = 0;
809 1106
810 /* have to use the microsoft-never-gets-it-right macro */ 1107 /* have to use the microsoft-never-gets-it-right macro */
811 array_free (fdchange, EMPTY); 1108 array_free (fdchange, EMPTY);
812 array_free (timer, EMPTY); 1109 array_free (timer, EMPTY);
813#if EV_PERIODICS 1110#if EV_PERIODIC_ENABLE
814 array_free (periodic, EMPTY); 1111 array_free (periodic, EMPTY);
815#endif 1112#endif
1113#if EV_FORK_ENABLE
816 array_free (idle, EMPTY); 1114 array_free (fork, EMPTY);
1115#endif
817 array_free (prepare, EMPTY); 1116 array_free (prepare, EMPTY);
818 array_free (check, EMPTY); 1117 array_free (check, EMPTY);
819 1118
820 method = 0; 1119 backend = 0;
821} 1120}
822 1121
823static void 1122void inline_size infy_fork (EV_P);
1123
1124void inline_size
824loop_fork (EV_P) 1125loop_fork (EV_P)
825{ 1126{
1127#if EV_USE_PORT
1128 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1129#endif
1130#if EV_USE_KQUEUE
1131 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1132#endif
826#if EV_USE_EPOLL 1133#if EV_USE_EPOLL
827 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1134 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
828#endif 1135#endif
829#if EV_USE_KQUEUE 1136#if EV_USE_INOTIFY
830 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1137 infy_fork (EV_A);
831#endif 1138#endif
832 1139
833 if (ev_is_active (&sigev)) 1140 if (ev_is_active (&sigev))
834 { 1141 {
835 /* default loop */ 1142 /* default loop */
… …
848 postfork = 0; 1155 postfork = 0;
849} 1156}
850 1157
851#if EV_MULTIPLICITY 1158#if EV_MULTIPLICITY
852struct ev_loop * 1159struct ev_loop *
853ev_loop_new (int methods) 1160ev_loop_new (unsigned int flags)
854{ 1161{
855 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1162 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
856 1163
857 memset (loop, 0, sizeof (struct ev_loop)); 1164 memset (loop, 0, sizeof (struct ev_loop));
858 1165
859 loop_init (EV_A_ methods); 1166 loop_init (EV_A_ flags);
860 1167
861 if (ev_method (EV_A)) 1168 if (ev_backend (EV_A))
862 return loop; 1169 return loop;
863 1170
864 return 0; 1171 return 0;
865} 1172}
866 1173
… …
879 1186
880#endif 1187#endif
881 1188
882#if EV_MULTIPLICITY 1189#if EV_MULTIPLICITY
883struct ev_loop * 1190struct ev_loop *
1191ev_default_loop_init (unsigned int flags)
884#else 1192#else
885int 1193int
1194ev_default_loop (unsigned int flags)
886#endif 1195#endif
887ev_default_loop (int methods)
888{ 1196{
889 if (sigpipe [0] == sigpipe [1]) 1197 if (sigpipe [0] == sigpipe [1])
890 if (pipe (sigpipe)) 1198 if (pipe (sigpipe))
891 return 0; 1199 return 0;
892 1200
893 if (!default_loop) 1201 if (!ev_default_loop_ptr)
894 { 1202 {
895#if EV_MULTIPLICITY 1203#if EV_MULTIPLICITY
896 struct ev_loop *loop = default_loop = &default_loop_struct; 1204 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
897#else 1205#else
898 default_loop = 1; 1206 ev_default_loop_ptr = 1;
899#endif 1207#endif
900 1208
901 loop_init (EV_A_ methods); 1209 loop_init (EV_A_ flags);
902 1210
903 if (ev_method (EV_A)) 1211 if (ev_backend (EV_A))
904 { 1212 {
905 siginit (EV_A); 1213 siginit (EV_A);
906 1214
907#ifndef _WIN32 1215#ifndef _WIN32
908 ev_signal_init (&childev, childcb, SIGCHLD); 1216 ev_signal_init (&childev, childcb, SIGCHLD);
… …
910 ev_signal_start (EV_A_ &childev); 1218 ev_signal_start (EV_A_ &childev);
911 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1219 ev_unref (EV_A); /* child watcher should not keep loop alive */
912#endif 1220#endif
913 } 1221 }
914 else 1222 else
915 default_loop = 0; 1223 ev_default_loop_ptr = 0;
916 } 1224 }
917 1225
918 return default_loop; 1226 return ev_default_loop_ptr;
919} 1227}
920 1228
921void 1229void
922ev_default_destroy (void) 1230ev_default_destroy (void)
923{ 1231{
924#if EV_MULTIPLICITY 1232#if EV_MULTIPLICITY
925 struct ev_loop *loop = default_loop; 1233 struct ev_loop *loop = ev_default_loop_ptr;
926#endif 1234#endif
927 1235
928#ifndef _WIN32 1236#ifndef _WIN32
929 ev_ref (EV_A); /* child watcher */ 1237 ev_ref (EV_A); /* child watcher */
930 ev_signal_stop (EV_A_ &childev); 1238 ev_signal_stop (EV_A_ &childev);
… …
941 1249
942void 1250void
943ev_default_fork (void) 1251ev_default_fork (void)
944{ 1252{
945#if EV_MULTIPLICITY 1253#if EV_MULTIPLICITY
946 struct ev_loop *loop = default_loop; 1254 struct ev_loop *loop = ev_default_loop_ptr;
947#endif 1255#endif
948 1256
949 if (method) 1257 if (backend)
950 postfork = 1; 1258 postfork = 1;
951} 1259}
952 1260
953/*****************************************************************************/ 1261/*****************************************************************************/
954 1262
955static int 1263void
956any_pending (EV_P) 1264ev_invoke (EV_P_ void *w, int revents)
957{ 1265{
958 int pri; 1266 EV_CB_INVOKE ((W)w, revents);
959
960 for (pri = NUMPRI; pri--; )
961 if (pendingcnt [pri])
962 return 1;
963
964 return 0;
965} 1267}
966 1268
967static void 1269void inline_speed
968call_pending (EV_P) 1270call_pending (EV_P)
969{ 1271{
970 int pri; 1272 int pri;
971 1273
972 for (pri = NUMPRI; pri--; ) 1274 for (pri = NUMPRI; pri--; )
973 while (pendingcnt [pri]) 1275 while (pendingcnt [pri])
974 { 1276 {
975 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1277 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
976 1278
977 if (p->w) 1279 if (expect_true (p->w))
978 { 1280 {
1281 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1282
979 p->w->pending = 0; 1283 p->w->pending = 0;
980 EV_CB_INVOKE (p->w, p->events); 1284 EV_CB_INVOKE (p->w, p->events);
981 } 1285 }
982 } 1286 }
983} 1287}
984 1288
985static void 1289void inline_size
986timers_reify (EV_P) 1290timers_reify (EV_P)
987{ 1291{
988 while (timercnt && ((WT)timers [0])->at <= mn_now) 1292 while (timercnt && ((WT)timers [0])->at <= mn_now)
989 { 1293 {
990 struct ev_timer *w = timers [0]; 1294 ev_timer *w = (ev_timer *)timers [0];
991 1295
992 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1296 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
993 1297
994 /* first reschedule or stop timer */ 1298 /* first reschedule or stop timer */
995 if (w->repeat) 1299 if (w->repeat)
996 { 1300 {
997 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1301 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
998 1302
999 ((WT)w)->at += w->repeat; 1303 ((WT)w)->at += w->repeat;
1000 if (((WT)w)->at < mn_now) 1304 if (((WT)w)->at < mn_now)
1001 ((WT)w)->at = mn_now; 1305 ((WT)w)->at = mn_now;
1002 1306
1003 downheap ((WT *)timers, timercnt, 0); 1307 downheap (timers, timercnt, 0);
1004 } 1308 }
1005 else 1309 else
1006 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1310 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1007 1311
1008 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1312 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1009 } 1313 }
1010} 1314}
1011 1315
1012#if EV_PERIODICS 1316#if EV_PERIODIC_ENABLE
1013static void 1317void inline_size
1014periodics_reify (EV_P) 1318periodics_reify (EV_P)
1015{ 1319{
1016 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1320 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1017 { 1321 {
1018 struct ev_periodic *w = periodics [0]; 1322 ev_periodic *w = (ev_periodic *)periodics [0];
1019 1323
1020 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1324 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1021 1325
1022 /* first reschedule or stop timer */ 1326 /* first reschedule or stop timer */
1023 if (w->reschedule_cb) 1327 if (w->reschedule_cb)
1024 { 1328 {
1025 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1329 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1026
1027 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1330 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1028 downheap ((WT *)periodics, periodiccnt, 0); 1331 downheap (periodics, periodiccnt, 0);
1029 } 1332 }
1030 else if (w->interval) 1333 else if (w->interval)
1031 { 1334 {
1032 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1335 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1336 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1033 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1337 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1034 downheap ((WT *)periodics, periodiccnt, 0); 1338 downheap (periodics, periodiccnt, 0);
1035 } 1339 }
1036 else 1340 else
1037 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1341 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1038 1342
1039 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1343 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1040 } 1344 }
1041} 1345}
1042 1346
1043static void 1347static void noinline
1044periodics_reschedule (EV_P) 1348periodics_reschedule (EV_P)
1045{ 1349{
1046 int i; 1350 int i;
1047 1351
1048 /* adjust periodics after time jump */ 1352 /* adjust periodics after time jump */
1049 for (i = 0; i < periodiccnt; ++i) 1353 for (i = 0; i < periodiccnt; ++i)
1050 { 1354 {
1051 struct ev_periodic *w = periodics [i]; 1355 ev_periodic *w = (ev_periodic *)periodics [i];
1052 1356
1053 if (w->reschedule_cb) 1357 if (w->reschedule_cb)
1054 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1358 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1055 else if (w->interval) 1359 else if (w->interval)
1056 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1360 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1057 } 1361 }
1058 1362
1059 /* now rebuild the heap */ 1363 /* now rebuild the heap */
1060 for (i = periodiccnt >> 1; i--; ) 1364 for (i = periodiccnt >> 1; i--; )
1061 downheap ((WT *)periodics, periodiccnt, i); 1365 downheap (periodics, periodiccnt, i);
1062} 1366}
1063#endif 1367#endif
1064 1368
1065inline int 1369#if EV_IDLE_ENABLE
1066time_update_monotonic (EV_P) 1370void inline_size
1371idle_reify (EV_P)
1067{ 1372{
1373 if (expect_false (idleall))
1374 {
1375 int pri;
1376
1377 for (pri = NUMPRI; pri--; )
1378 {
1379 if (pendingcnt [pri])
1380 break;
1381
1382 if (idlecnt [pri])
1383 {
1384 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1385 break;
1386 }
1387 }
1388 }
1389}
1390#endif
1391
1392void inline_speed
1393time_update (EV_P_ ev_tstamp max_block)
1394{
1395 int i;
1396
1397#if EV_USE_MONOTONIC
1398 if (expect_true (have_monotonic))
1399 {
1400 ev_tstamp odiff = rtmn_diff;
1401
1068 mn_now = get_clock (); 1402 mn_now = get_clock ();
1069 1403
1404 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1405 /* interpolate in the meantime */
1070 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1406 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1071 { 1407 {
1072 ev_rt_now = rtmn_diff + mn_now; 1408 ev_rt_now = rtmn_diff + mn_now;
1073 return 0; 1409 return;
1074 } 1410 }
1075 else 1411
1076 {
1077 now_floor = mn_now; 1412 now_floor = mn_now;
1078 ev_rt_now = ev_time (); 1413 ev_rt_now = ev_time ();
1079 return 1;
1080 }
1081}
1082 1414
1083static void 1415 /* loop a few times, before making important decisions.
1084time_update (EV_P) 1416 * on the choice of "4": one iteration isn't enough,
1085{ 1417 * in case we get preempted during the calls to
1086 int i; 1418 * ev_time and get_clock. a second call is almost guaranteed
1087 1419 * to succeed in that case, though. and looping a few more times
1088#if EV_USE_MONOTONIC 1420 * doesn't hurt either as we only do this on time-jumps or
1089 if (expect_true (have_monotonic)) 1421 * in the unlikely event of having been preempted here.
1090 { 1422 */
1091 if (time_update_monotonic (EV_A)) 1423 for (i = 4; --i; )
1092 { 1424 {
1093 ev_tstamp odiff = rtmn_diff;
1094
1095 for (i = 4; --i; ) /* loop a few times, before making important decisions */
1096 {
1097 rtmn_diff = ev_rt_now - mn_now; 1425 rtmn_diff = ev_rt_now - mn_now;
1098 1426
1099 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1427 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1100 return; /* all is well */ 1428 return; /* all is well */
1101 1429
1102 ev_rt_now = ev_time (); 1430 ev_rt_now = ev_time ();
1103 mn_now = get_clock (); 1431 mn_now = get_clock ();
1104 now_floor = mn_now; 1432 now_floor = mn_now;
1105 } 1433 }
1106 1434
1107# if EV_PERIODICS 1435# if EV_PERIODIC_ENABLE
1436 periodics_reschedule (EV_A);
1437# endif
1438 /* no timer adjustment, as the monotonic clock doesn't jump */
1439 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1440 }
1441 else
1442#endif
1443 {
1444 ev_rt_now = ev_time ();
1445
1446 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1447 {
1448#if EV_PERIODIC_ENABLE
1108 periodics_reschedule (EV_A); 1449 periodics_reschedule (EV_A);
1109# endif 1450#endif
1110 /* no timer adjustment, as the monotonic clock doesn't jump */
1111 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1112 }
1113 }
1114 else
1115#endif
1116 {
1117 ev_rt_now = ev_time ();
1118
1119 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1120 {
1121#if EV_PERIODICS
1122 periodics_reschedule (EV_A);
1123#endif
1124
1125 /* adjust timers. this is easy, as the offset is the same for all */ 1451 /* adjust timers. this is easy, as the offset is the same for all of them */
1126 for (i = 0; i < timercnt; ++i) 1452 for (i = 0; i < timercnt; ++i)
1127 ((WT)timers [i])->at += ev_rt_now - mn_now; 1453 ((WT)timers [i])->at += ev_rt_now - mn_now;
1128 } 1454 }
1129 1455
1130 mn_now = ev_rt_now; 1456 mn_now = ev_rt_now;
… …
1146static int loop_done; 1472static int loop_done;
1147 1473
1148void 1474void
1149ev_loop (EV_P_ int flags) 1475ev_loop (EV_P_ int flags)
1150{ 1476{
1151 double block;
1152 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1477 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1478 ? EVUNLOOP_ONE
1479 : EVUNLOOP_CANCEL;
1480
1481 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1153 1482
1154 do 1483 do
1155 { 1484 {
1485#ifndef _WIN32
1486 if (expect_false (curpid)) /* penalise the forking check even more */
1487 if (expect_false (getpid () != curpid))
1488 {
1489 curpid = getpid ();
1490 postfork = 1;
1491 }
1492#endif
1493
1494#if EV_FORK_ENABLE
1495 /* we might have forked, so queue fork handlers */
1496 if (expect_false (postfork))
1497 if (forkcnt)
1498 {
1499 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1500 call_pending (EV_A);
1501 }
1502#endif
1503
1156 /* queue check watchers (and execute them) */ 1504 /* queue prepare watchers (and execute them) */
1157 if (expect_false (preparecnt)) 1505 if (expect_false (preparecnt))
1158 { 1506 {
1159 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1507 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1160 call_pending (EV_A); 1508 call_pending (EV_A);
1161 } 1509 }
1162 1510
1511 if (expect_false (!activecnt))
1512 break;
1513
1163 /* we might have forked, so reify kernel state if necessary */ 1514 /* we might have forked, so reify kernel state if necessary */
1164 if (expect_false (postfork)) 1515 if (expect_false (postfork))
1165 loop_fork (EV_A); 1516 loop_fork (EV_A);
1166 1517
1167 /* update fd-related kernel structures */ 1518 /* update fd-related kernel structures */
1168 fd_reify (EV_A); 1519 fd_reify (EV_A);
1169 1520
1170 /* calculate blocking time */ 1521 /* calculate blocking time */
1522 {
1523 ev_tstamp waittime = 0.;
1524 ev_tstamp sleeptime = 0.;
1171 1525
1172 /* we only need this for !monotonic clock or timers, but as we basically 1526 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt)))
1173 always have timers, we just calculate it always */
1174#if EV_USE_MONOTONIC
1175 if (expect_true (have_monotonic))
1176 time_update_monotonic (EV_A);
1177 else
1178#endif
1179 { 1527 {
1180 ev_rt_now = ev_time (); 1528 /* update time to cancel out callback processing overhead */
1181 mn_now = ev_rt_now; 1529 time_update (EV_A_ 1e100);
1182 }
1183 1530
1184 if (flags & EVLOOP_NONBLOCK || idlecnt)
1185 block = 0.;
1186 else
1187 {
1188 block = MAX_BLOCKTIME; 1531 waittime = MAX_BLOCKTIME;
1189 1532
1190 if (timercnt) 1533 if (timercnt)
1191 { 1534 {
1192 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1535 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1193 if (block > to) block = to; 1536 if (waittime > to) waittime = to;
1194 } 1537 }
1195 1538
1196#if EV_PERIODICS 1539#if EV_PERIODIC_ENABLE
1197 if (periodiccnt) 1540 if (periodiccnt)
1198 { 1541 {
1199 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1542 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1200 if (block > to) block = to; 1543 if (waittime > to) waittime = to;
1201 } 1544 }
1202#endif 1545#endif
1203 1546
1204 if (block < 0.) block = 0.; 1547 if (expect_false (waittime < timeout_blocktime))
1548 waittime = timeout_blocktime;
1549
1550 sleeptime = waittime - backend_fudge;
1551
1552 if (expect_true (sleeptime > io_blocktime))
1553 sleeptime = io_blocktime;
1554
1555 if (sleeptime)
1556 {
1557 ev_sleep (sleeptime);
1558 waittime -= sleeptime;
1559 }
1205 } 1560 }
1206 1561
1207 method_poll (EV_A_ block); 1562 ++loop_count;
1563 backend_poll (EV_A_ waittime);
1208 1564
1209 /* update ev_rt_now, do magic */ 1565 /* update ev_rt_now, do magic */
1210 time_update (EV_A); 1566 time_update (EV_A_ waittime + sleeptime);
1567 }
1211 1568
1212 /* queue pending timers and reschedule them */ 1569 /* queue pending timers and reschedule them */
1213 timers_reify (EV_A); /* relative timers called last */ 1570 timers_reify (EV_A); /* relative timers called last */
1214#if EV_PERIODICS 1571#if EV_PERIODIC_ENABLE
1215 periodics_reify (EV_A); /* absolute timers called first */ 1572 periodics_reify (EV_A); /* absolute timers called first */
1216#endif 1573#endif
1217 1574
1575#if EV_IDLE_ENABLE
1218 /* queue idle watchers unless io or timers are pending */ 1576 /* queue idle watchers unless other events are pending */
1219 if (idlecnt && !any_pending (EV_A)) 1577 idle_reify (EV_A);
1220 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1578#endif
1221 1579
1222 /* queue check watchers, to be executed first */ 1580 /* queue check watchers, to be executed first */
1223 if (checkcnt) 1581 if (expect_false (checkcnt))
1224 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1582 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1225 1583
1226 call_pending (EV_A); 1584 call_pending (EV_A);
1585
1227 } 1586 }
1228 while (activecnt && !loop_done); 1587 while (expect_true (activecnt && !loop_done));
1229 1588
1230 if (loop_done != 2) 1589 if (loop_done == EVUNLOOP_ONE)
1231 loop_done = 0; 1590 loop_done = EVUNLOOP_CANCEL;
1232} 1591}
1233 1592
1234void 1593void
1235ev_unloop (EV_P_ int how) 1594ev_unloop (EV_P_ int how)
1236{ 1595{
1237 loop_done = how; 1596 loop_done = how;
1238} 1597}
1239 1598
1240/*****************************************************************************/ 1599/*****************************************************************************/
1241 1600
1242inline void 1601void inline_size
1243wlist_add (WL *head, WL elem) 1602wlist_add (WL *head, WL elem)
1244{ 1603{
1245 elem->next = *head; 1604 elem->next = *head;
1246 *head = elem; 1605 *head = elem;
1247} 1606}
1248 1607
1249inline void 1608void inline_size
1250wlist_del (WL *head, WL elem) 1609wlist_del (WL *head, WL elem)
1251{ 1610{
1252 while (*head) 1611 while (*head)
1253 { 1612 {
1254 if (*head == elem) 1613 if (*head == elem)
… …
1259 1618
1260 head = &(*head)->next; 1619 head = &(*head)->next;
1261 } 1620 }
1262} 1621}
1263 1622
1264inline void 1623void inline_speed
1265ev_clear_pending (EV_P_ W w) 1624clear_pending (EV_P_ W w)
1266{ 1625{
1267 if (w->pending) 1626 if (w->pending)
1268 { 1627 {
1269 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1628 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1270 w->pending = 0; 1629 w->pending = 0;
1271 } 1630 }
1272} 1631}
1273 1632
1274inline void 1633int
1634ev_clear_pending (EV_P_ void *w)
1635{
1636 W w_ = (W)w;
1637 int pending = w_->pending;
1638
1639 if (expect_true (pending))
1640 {
1641 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1642 w_->pending = 0;
1643 p->w = 0;
1644 return p->events;
1645 }
1646 else
1647 return 0;
1648}
1649
1650void inline_size
1651pri_adjust (EV_P_ W w)
1652{
1653 int pri = w->priority;
1654 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1655 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1656 w->priority = pri;
1657}
1658
1659void inline_speed
1275ev_start (EV_P_ W w, int active) 1660ev_start (EV_P_ W w, int active)
1276{ 1661{
1277 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1662 pri_adjust (EV_A_ w);
1278 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1279
1280 w->active = active; 1663 w->active = active;
1281 ev_ref (EV_A); 1664 ev_ref (EV_A);
1282} 1665}
1283 1666
1284inline void 1667void inline_size
1285ev_stop (EV_P_ W w) 1668ev_stop (EV_P_ W w)
1286{ 1669{
1287 ev_unref (EV_A); 1670 ev_unref (EV_A);
1288 w->active = 0; 1671 w->active = 0;
1289} 1672}
1290 1673
1291/*****************************************************************************/ 1674/*****************************************************************************/
1292 1675
1293void 1676void noinline
1294ev_io_start (EV_P_ struct ev_io *w) 1677ev_io_start (EV_P_ ev_io *w)
1295{ 1678{
1296 int fd = w->fd; 1679 int fd = w->fd;
1297 1680
1298 if (ev_is_active (w)) 1681 if (expect_false (ev_is_active (w)))
1299 return; 1682 return;
1300 1683
1301 assert (("ev_io_start called with negative fd", fd >= 0)); 1684 assert (("ev_io_start called with negative fd", fd >= 0));
1302 1685
1303 ev_start (EV_A_ (W)w, 1); 1686 ev_start (EV_A_ (W)w, 1);
1304 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1687 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1305 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1688 wlist_add (&anfds[fd].head, (WL)w);
1306 1689
1307 fd_change (EV_A_ fd); 1690 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1691 w->events &= ~EV_IOFDSET;
1308} 1692}
1309 1693
1310void 1694void noinline
1311ev_io_stop (EV_P_ struct ev_io *w) 1695ev_io_stop (EV_P_ ev_io *w)
1312{ 1696{
1313 ev_clear_pending (EV_A_ (W)w); 1697 clear_pending (EV_A_ (W)w);
1314 if (!ev_is_active (w)) 1698 if (expect_false (!ev_is_active (w)))
1315 return; 1699 return;
1316 1700
1317 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1701 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1318 1702
1319 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1703 wlist_del (&anfds[w->fd].head, (WL)w);
1320 ev_stop (EV_A_ (W)w); 1704 ev_stop (EV_A_ (W)w);
1321 1705
1322 fd_change (EV_A_ w->fd); 1706 fd_change (EV_A_ w->fd, 1);
1323} 1707}
1324 1708
1325void 1709void noinline
1326ev_timer_start (EV_P_ struct ev_timer *w) 1710ev_timer_start (EV_P_ ev_timer *w)
1327{ 1711{
1328 if (ev_is_active (w)) 1712 if (expect_false (ev_is_active (w)))
1329 return; 1713 return;
1330 1714
1331 ((WT)w)->at += mn_now; 1715 ((WT)w)->at += mn_now;
1332 1716
1333 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1717 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1334 1718
1335 ev_start (EV_A_ (W)w, ++timercnt); 1719 ev_start (EV_A_ (W)w, ++timercnt);
1336 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1720 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1337 timers [timercnt - 1] = w; 1721 timers [timercnt - 1] = (WT)w;
1338 upheap ((WT *)timers, timercnt - 1); 1722 upheap (timers, timercnt - 1);
1339 1723
1340 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1724 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1341} 1725}
1342 1726
1343void 1727void noinline
1344ev_timer_stop (EV_P_ struct ev_timer *w) 1728ev_timer_stop (EV_P_ ev_timer *w)
1345{ 1729{
1346 ev_clear_pending (EV_A_ (W)w); 1730 clear_pending (EV_A_ (W)w);
1347 if (!ev_is_active (w)) 1731 if (expect_false (!ev_is_active (w)))
1348 return; 1732 return;
1349 1733
1350 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1734 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1351 1735
1352 if (((W)w)->active < timercnt--) 1736 {
1737 int active = ((W)w)->active;
1738
1739 if (expect_true (--active < --timercnt))
1353 { 1740 {
1354 timers [((W)w)->active - 1] = timers [timercnt]; 1741 timers [active] = timers [timercnt];
1355 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1742 adjustheap (timers, timercnt, active);
1356 } 1743 }
1744 }
1357 1745
1358 ((WT)w)->at -= mn_now; 1746 ((WT)w)->at -= mn_now;
1359 1747
1360 ev_stop (EV_A_ (W)w); 1748 ev_stop (EV_A_ (W)w);
1361} 1749}
1362 1750
1363void 1751void noinline
1364ev_timer_again (EV_P_ struct ev_timer *w) 1752ev_timer_again (EV_P_ ev_timer *w)
1365{ 1753{
1366 if (ev_is_active (w)) 1754 if (ev_is_active (w))
1367 { 1755 {
1368 if (w->repeat) 1756 if (w->repeat)
1369 { 1757 {
1370 ((WT)w)->at = mn_now + w->repeat; 1758 ((WT)w)->at = mn_now + w->repeat;
1371 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1759 adjustheap (timers, timercnt, ((W)w)->active - 1);
1372 } 1760 }
1373 else 1761 else
1374 ev_timer_stop (EV_A_ w); 1762 ev_timer_stop (EV_A_ w);
1375 } 1763 }
1376 else if (w->repeat) 1764 else if (w->repeat)
1765 {
1766 w->at = w->repeat;
1377 ev_timer_start (EV_A_ w); 1767 ev_timer_start (EV_A_ w);
1768 }
1378} 1769}
1379 1770
1380#if EV_PERIODICS 1771#if EV_PERIODIC_ENABLE
1381void 1772void noinline
1382ev_periodic_start (EV_P_ struct ev_periodic *w) 1773ev_periodic_start (EV_P_ ev_periodic *w)
1383{ 1774{
1384 if (ev_is_active (w)) 1775 if (expect_false (ev_is_active (w)))
1385 return; 1776 return;
1386 1777
1387 if (w->reschedule_cb) 1778 if (w->reschedule_cb)
1388 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1779 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1389 else if (w->interval) 1780 else if (w->interval)
1390 { 1781 {
1391 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1782 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1392 /* this formula differs from the one in periodic_reify because we do not always round up */ 1783 /* this formula differs from the one in periodic_reify because we do not always round up */
1393 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1784 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1394 } 1785 }
1786 else
1787 ((WT)w)->at = w->offset;
1395 1788
1396 ev_start (EV_A_ (W)w, ++periodiccnt); 1789 ev_start (EV_A_ (W)w, ++periodiccnt);
1397 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1790 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1398 periodics [periodiccnt - 1] = w; 1791 periodics [periodiccnt - 1] = (WT)w;
1399 upheap ((WT *)periodics, periodiccnt - 1); 1792 upheap (periodics, periodiccnt - 1);
1400 1793
1401 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1794 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1402} 1795}
1403 1796
1404void 1797void noinline
1405ev_periodic_stop (EV_P_ struct ev_periodic *w) 1798ev_periodic_stop (EV_P_ ev_periodic *w)
1406{ 1799{
1407 ev_clear_pending (EV_A_ (W)w); 1800 clear_pending (EV_A_ (W)w);
1408 if (!ev_is_active (w)) 1801 if (expect_false (!ev_is_active (w)))
1409 return; 1802 return;
1410 1803
1411 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1804 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1412 1805
1413 if (((W)w)->active < periodiccnt--) 1806 {
1807 int active = ((W)w)->active;
1808
1809 if (expect_true (--active < --periodiccnt))
1414 { 1810 {
1415 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1811 periodics [active] = periodics [periodiccnt];
1416 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1812 adjustheap (periodics, periodiccnt, active);
1417 } 1813 }
1814 }
1418 1815
1419 ev_stop (EV_A_ (W)w); 1816 ev_stop (EV_A_ (W)w);
1420} 1817}
1421 1818
1422void 1819void noinline
1423ev_periodic_again (EV_P_ struct ev_periodic *w) 1820ev_periodic_again (EV_P_ ev_periodic *w)
1424{ 1821{
1425 /* TODO: use adjustheap and recalculation */ 1822 /* TODO: use adjustheap and recalculation */
1426 ev_periodic_stop (EV_A_ w); 1823 ev_periodic_stop (EV_A_ w);
1427 ev_periodic_start (EV_A_ w); 1824 ev_periodic_start (EV_A_ w);
1428} 1825}
1429#endif 1826#endif
1430 1827
1431void
1432ev_idle_start (EV_P_ struct ev_idle *w)
1433{
1434 if (ev_is_active (w))
1435 return;
1436
1437 ev_start (EV_A_ (W)w, ++idlecnt);
1438 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1439 idles [idlecnt - 1] = w;
1440}
1441
1442void
1443ev_idle_stop (EV_P_ struct ev_idle *w)
1444{
1445 ev_clear_pending (EV_A_ (W)w);
1446 if (!ev_is_active (w))
1447 return;
1448
1449 idles [((W)w)->active - 1] = idles [--idlecnt];
1450 ev_stop (EV_A_ (W)w);
1451}
1452
1453void
1454ev_prepare_start (EV_P_ struct ev_prepare *w)
1455{
1456 if (ev_is_active (w))
1457 return;
1458
1459 ev_start (EV_A_ (W)w, ++preparecnt);
1460 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1461 prepares [preparecnt - 1] = w;
1462}
1463
1464void
1465ev_prepare_stop (EV_P_ struct ev_prepare *w)
1466{
1467 ev_clear_pending (EV_A_ (W)w);
1468 if (!ev_is_active (w))
1469 return;
1470
1471 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1472 ev_stop (EV_A_ (W)w);
1473}
1474
1475void
1476ev_check_start (EV_P_ struct ev_check *w)
1477{
1478 if (ev_is_active (w))
1479 return;
1480
1481 ev_start (EV_A_ (W)w, ++checkcnt);
1482 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1483 checks [checkcnt - 1] = w;
1484}
1485
1486void
1487ev_check_stop (EV_P_ struct ev_check *w)
1488{
1489 ev_clear_pending (EV_A_ (W)w);
1490 if (!ev_is_active (w))
1491 return;
1492
1493 checks [((W)w)->active - 1] = checks [--checkcnt];
1494 ev_stop (EV_A_ (W)w);
1495}
1496
1497#ifndef SA_RESTART 1828#ifndef SA_RESTART
1498# define SA_RESTART 0 1829# define SA_RESTART 0
1499#endif 1830#endif
1500 1831
1501void 1832void noinline
1502ev_signal_start (EV_P_ struct ev_signal *w) 1833ev_signal_start (EV_P_ ev_signal *w)
1503{ 1834{
1504#if EV_MULTIPLICITY 1835#if EV_MULTIPLICITY
1505 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1836 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1506#endif 1837#endif
1507 if (ev_is_active (w)) 1838 if (expect_false (ev_is_active (w)))
1508 return; 1839 return;
1509 1840
1510 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1841 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1511 1842
1843 {
1844#ifndef _WIN32
1845 sigset_t full, prev;
1846 sigfillset (&full);
1847 sigprocmask (SIG_SETMASK, &full, &prev);
1848#endif
1849
1850 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1851
1852#ifndef _WIN32
1853 sigprocmask (SIG_SETMASK, &prev, 0);
1854#endif
1855 }
1856
1512 ev_start (EV_A_ (W)w, 1); 1857 ev_start (EV_A_ (W)w, 1);
1513 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1514 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1858 wlist_add (&signals [w->signum - 1].head, (WL)w);
1515 1859
1516 if (!((WL)w)->next) 1860 if (!((WL)w)->next)
1517 { 1861 {
1518#if _WIN32 1862#if _WIN32
1519 signal (w->signum, sighandler); 1863 signal (w->signum, sighandler);
… …
1525 sigaction (w->signum, &sa, 0); 1869 sigaction (w->signum, &sa, 0);
1526#endif 1870#endif
1527 } 1871 }
1528} 1872}
1529 1873
1530void 1874void noinline
1531ev_signal_stop (EV_P_ struct ev_signal *w) 1875ev_signal_stop (EV_P_ ev_signal *w)
1532{ 1876{
1533 ev_clear_pending (EV_A_ (W)w); 1877 clear_pending (EV_A_ (W)w);
1534 if (!ev_is_active (w)) 1878 if (expect_false (!ev_is_active (w)))
1535 return; 1879 return;
1536 1880
1537 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1881 wlist_del (&signals [w->signum - 1].head, (WL)w);
1538 ev_stop (EV_A_ (W)w); 1882 ev_stop (EV_A_ (W)w);
1539 1883
1540 if (!signals [w->signum - 1].head) 1884 if (!signals [w->signum - 1].head)
1541 signal (w->signum, SIG_DFL); 1885 signal (w->signum, SIG_DFL);
1542} 1886}
1543 1887
1544void 1888void
1545ev_child_start (EV_P_ struct ev_child *w) 1889ev_child_start (EV_P_ ev_child *w)
1546{ 1890{
1547#if EV_MULTIPLICITY 1891#if EV_MULTIPLICITY
1548 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1892 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1549#endif 1893#endif
1550 if (ev_is_active (w)) 1894 if (expect_false (ev_is_active (w)))
1551 return; 1895 return;
1552 1896
1553 ev_start (EV_A_ (W)w, 1); 1897 ev_start (EV_A_ (W)w, 1);
1554 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1898 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1555} 1899}
1556 1900
1557void 1901void
1558ev_child_stop (EV_P_ struct ev_child *w) 1902ev_child_stop (EV_P_ ev_child *w)
1559{ 1903{
1560 ev_clear_pending (EV_A_ (W)w); 1904 clear_pending (EV_A_ (W)w);
1561 if (!ev_is_active (w)) 1905 if (expect_false (!ev_is_active (w)))
1562 return; 1906 return;
1563 1907
1564 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1908 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1565 ev_stop (EV_A_ (W)w); 1909 ev_stop (EV_A_ (W)w);
1566} 1910}
1567 1911
1912#if EV_STAT_ENABLE
1913
1914# ifdef _WIN32
1915# undef lstat
1916# define lstat(a,b) _stati64 (a,b)
1917# endif
1918
1919#define DEF_STAT_INTERVAL 5.0074891
1920#define MIN_STAT_INTERVAL 0.1074891
1921
1922static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1923
1924#if EV_USE_INOTIFY
1925# define EV_INOTIFY_BUFSIZE 8192
1926
1927static void noinline
1928infy_add (EV_P_ ev_stat *w)
1929{
1930 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);
1931
1932 if (w->wd < 0)
1933 {
1934 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1935
1936 /* monitor some parent directory for speedup hints */
1937 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1938 {
1939 char path [4096];
1940 strcpy (path, w->path);
1941
1942 do
1943 {
1944 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1945 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1946
1947 char *pend = strrchr (path, '/');
1948
1949 if (!pend)
1950 break; /* whoops, no '/', complain to your admin */
1951
1952 *pend = 0;
1953 w->wd = inotify_add_watch (fs_fd, path, mask);
1954 }
1955 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1956 }
1957 }
1958 else
1959 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1960
1961 if (w->wd >= 0)
1962 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1963}
1964
1965static void noinline
1966infy_del (EV_P_ ev_stat *w)
1967{
1968 int slot;
1969 int wd = w->wd;
1970
1971 if (wd < 0)
1972 return;
1973
1974 w->wd = -2;
1975 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1976 wlist_del (&fs_hash [slot].head, (WL)w);
1977
1978 /* remove this watcher, if others are watching it, they will rearm */
1979 inotify_rm_watch (fs_fd, wd);
1980}
1981
1982static void noinline
1983infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1984{
1985 if (slot < 0)
1986 /* overflow, need to check for all hahs slots */
1987 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1988 infy_wd (EV_A_ slot, wd, ev);
1989 else
1990 {
1991 WL w_;
1992
1993 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1994 {
1995 ev_stat *w = (ev_stat *)w_;
1996 w_ = w_->next; /* lets us remove this watcher and all before it */
1997
1998 if (w->wd == wd || wd == -1)
1999 {
2000 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2001 {
2002 w->wd = -1;
2003 infy_add (EV_A_ w); /* re-add, no matter what */
2004 }
2005
2006 stat_timer_cb (EV_A_ &w->timer, 0);
2007 }
2008 }
2009 }
2010}
2011
2012static void
2013infy_cb (EV_P_ ev_io *w, int revents)
2014{
2015 char buf [EV_INOTIFY_BUFSIZE];
2016 struct inotify_event *ev = (struct inotify_event *)buf;
2017 int ofs;
2018 int len = read (fs_fd, buf, sizeof (buf));
2019
2020 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
2021 infy_wd (EV_A_ ev->wd, ev->wd, ev);
2022}
2023
2024void inline_size
2025infy_init (EV_P)
2026{
2027 if (fs_fd != -2)
2028 return;
2029
2030 fs_fd = inotify_init ();
2031
2032 if (fs_fd >= 0)
2033 {
2034 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2035 ev_set_priority (&fs_w, EV_MAXPRI);
2036 ev_io_start (EV_A_ &fs_w);
2037 }
2038}
2039
2040void inline_size
2041infy_fork (EV_P)
2042{
2043 int slot;
2044
2045 if (fs_fd < 0)
2046 return;
2047
2048 close (fs_fd);
2049 fs_fd = inotify_init ();
2050
2051 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
2052 {
2053 WL w_ = fs_hash [slot].head;
2054 fs_hash [slot].head = 0;
2055
2056 while (w_)
2057 {
2058 ev_stat *w = (ev_stat *)w_;
2059 w_ = w_->next; /* lets us add this watcher */
2060
2061 w->wd = -1;
2062
2063 if (fs_fd >= 0)
2064 infy_add (EV_A_ w); /* re-add, no matter what */
2065 else
2066 ev_timer_start (EV_A_ &w->timer);
2067 }
2068
2069 }
2070}
2071
2072#endif
2073
2074void
2075ev_stat_stat (EV_P_ ev_stat *w)
2076{
2077 if (lstat (w->path, &w->attr) < 0)
2078 w->attr.st_nlink = 0;
2079 else if (!w->attr.st_nlink)
2080 w->attr.st_nlink = 1;
2081}
2082
2083static void noinline
2084stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2085{
2086 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2087
2088 /* we copy this here each the time so that */
2089 /* prev has the old value when the callback gets invoked */
2090 w->prev = w->attr;
2091 ev_stat_stat (EV_A_ w);
2092
2093 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2094 if (
2095 w->prev.st_dev != w->attr.st_dev
2096 || w->prev.st_ino != w->attr.st_ino
2097 || w->prev.st_mode != w->attr.st_mode
2098 || w->prev.st_nlink != w->attr.st_nlink
2099 || w->prev.st_uid != w->attr.st_uid
2100 || w->prev.st_gid != w->attr.st_gid
2101 || w->prev.st_rdev != w->attr.st_rdev
2102 || w->prev.st_size != w->attr.st_size
2103 || w->prev.st_atime != w->attr.st_atime
2104 || w->prev.st_mtime != w->attr.st_mtime
2105 || w->prev.st_ctime != w->attr.st_ctime
2106 ) {
2107 #if EV_USE_INOTIFY
2108 infy_del (EV_A_ w);
2109 infy_add (EV_A_ w);
2110 ev_stat_stat (EV_A_ w); /* avoid race... */
2111 #endif
2112
2113 ev_feed_event (EV_A_ w, EV_STAT);
2114 }
2115}
2116
2117void
2118ev_stat_start (EV_P_ ev_stat *w)
2119{
2120 if (expect_false (ev_is_active (w)))
2121 return;
2122
2123 /* since we use memcmp, we need to clear any padding data etc. */
2124 memset (&w->prev, 0, sizeof (ev_statdata));
2125 memset (&w->attr, 0, sizeof (ev_statdata));
2126
2127 ev_stat_stat (EV_A_ w);
2128
2129 if (w->interval < MIN_STAT_INTERVAL)
2130 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2131
2132 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2133 ev_set_priority (&w->timer, ev_priority (w));
2134
2135#if EV_USE_INOTIFY
2136 infy_init (EV_A);
2137
2138 if (fs_fd >= 0)
2139 infy_add (EV_A_ w);
2140 else
2141#endif
2142 ev_timer_start (EV_A_ &w->timer);
2143
2144 ev_start (EV_A_ (W)w, 1);
2145}
2146
2147void
2148ev_stat_stop (EV_P_ ev_stat *w)
2149{
2150 clear_pending (EV_A_ (W)w);
2151 if (expect_false (!ev_is_active (w)))
2152 return;
2153
2154#if EV_USE_INOTIFY
2155 infy_del (EV_A_ w);
2156#endif
2157 ev_timer_stop (EV_A_ &w->timer);
2158
2159 ev_stop (EV_A_ (W)w);
2160}
2161#endif
2162
2163#if EV_IDLE_ENABLE
2164void
2165ev_idle_start (EV_P_ ev_idle *w)
2166{
2167 if (expect_false (ev_is_active (w)))
2168 return;
2169
2170 pri_adjust (EV_A_ (W)w);
2171
2172 {
2173 int active = ++idlecnt [ABSPRI (w)];
2174
2175 ++idleall;
2176 ev_start (EV_A_ (W)w, active);
2177
2178 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2179 idles [ABSPRI (w)][active - 1] = w;
2180 }
2181}
2182
2183void
2184ev_idle_stop (EV_P_ ev_idle *w)
2185{
2186 clear_pending (EV_A_ (W)w);
2187 if (expect_false (!ev_is_active (w)))
2188 return;
2189
2190 {
2191 int active = ((W)w)->active;
2192
2193 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2194 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2195
2196 ev_stop (EV_A_ (W)w);
2197 --idleall;
2198 }
2199}
2200#endif
2201
2202void
2203ev_prepare_start (EV_P_ ev_prepare *w)
2204{
2205 if (expect_false (ev_is_active (w)))
2206 return;
2207
2208 ev_start (EV_A_ (W)w, ++preparecnt);
2209 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2210 prepares [preparecnt - 1] = w;
2211}
2212
2213void
2214ev_prepare_stop (EV_P_ ev_prepare *w)
2215{
2216 clear_pending (EV_A_ (W)w);
2217 if (expect_false (!ev_is_active (w)))
2218 return;
2219
2220 {
2221 int active = ((W)w)->active;
2222 prepares [active - 1] = prepares [--preparecnt];
2223 ((W)prepares [active - 1])->active = active;
2224 }
2225
2226 ev_stop (EV_A_ (W)w);
2227}
2228
2229void
2230ev_check_start (EV_P_ ev_check *w)
2231{
2232 if (expect_false (ev_is_active (w)))
2233 return;
2234
2235 ev_start (EV_A_ (W)w, ++checkcnt);
2236 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2237 checks [checkcnt - 1] = w;
2238}
2239
2240void
2241ev_check_stop (EV_P_ ev_check *w)
2242{
2243 clear_pending (EV_A_ (W)w);
2244 if (expect_false (!ev_is_active (w)))
2245 return;
2246
2247 {
2248 int active = ((W)w)->active;
2249 checks [active - 1] = checks [--checkcnt];
2250 ((W)checks [active - 1])->active = active;
2251 }
2252
2253 ev_stop (EV_A_ (W)w);
2254}
2255
2256#if EV_EMBED_ENABLE
2257void noinline
2258ev_embed_sweep (EV_P_ ev_embed *w)
2259{
2260 ev_loop (w->other, EVLOOP_NONBLOCK);
2261}
2262
2263static void
2264embed_io_cb (EV_P_ ev_io *io, int revents)
2265{
2266 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2267
2268 if (ev_cb (w))
2269 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2270 else
2271 ev_embed_sweep (loop, w);
2272}
2273
2274static void
2275embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
2276{
2277 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
2278
2279 fd_reify (w->other);
2280}
2281
2282void
2283ev_embed_start (EV_P_ ev_embed *w)
2284{
2285 if (expect_false (ev_is_active (w)))
2286 return;
2287
2288 {
2289 struct ev_loop *loop = w->other;
2290 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2291 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
2292 }
2293
2294 ev_set_priority (&w->io, ev_priority (w));
2295 ev_io_start (EV_A_ &w->io);
2296
2297 ev_prepare_init (&w->prepare, embed_prepare_cb);
2298 ev_set_priority (&w->prepare, EV_MINPRI);
2299 ev_prepare_start (EV_A_ &w->prepare);
2300
2301 ev_start (EV_A_ (W)w, 1);
2302}
2303
2304void
2305ev_embed_stop (EV_P_ ev_embed *w)
2306{
2307 clear_pending (EV_A_ (W)w);
2308 if (expect_false (!ev_is_active (w)))
2309 return;
2310
2311 ev_io_stop (EV_A_ &w->io);
2312 ev_prepare_stop (EV_A_ &w->prepare);
2313
2314 ev_stop (EV_A_ (W)w);
2315}
2316#endif
2317
2318#if EV_FORK_ENABLE
2319void
2320ev_fork_start (EV_P_ ev_fork *w)
2321{
2322 if (expect_false (ev_is_active (w)))
2323 return;
2324
2325 ev_start (EV_A_ (W)w, ++forkcnt);
2326 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2327 forks [forkcnt - 1] = w;
2328}
2329
2330void
2331ev_fork_stop (EV_P_ ev_fork *w)
2332{
2333 clear_pending (EV_A_ (W)w);
2334 if (expect_false (!ev_is_active (w)))
2335 return;
2336
2337 {
2338 int active = ((W)w)->active;
2339 forks [active - 1] = forks [--forkcnt];
2340 ((W)forks [active - 1])->active = active;
2341 }
2342
2343 ev_stop (EV_A_ (W)w);
2344}
2345#endif
2346
1568/*****************************************************************************/ 2347/*****************************************************************************/
1569 2348
1570struct ev_once 2349struct ev_once
1571{ 2350{
1572 struct ev_io io; 2351 ev_io io;
1573 struct ev_timer to; 2352 ev_timer to;
1574 void (*cb)(int revents, void *arg); 2353 void (*cb)(int revents, void *arg);
1575 void *arg; 2354 void *arg;
1576}; 2355};
1577 2356
1578static void 2357static void
… …
1587 2366
1588 cb (revents, arg); 2367 cb (revents, arg);
1589} 2368}
1590 2369
1591static void 2370static void
1592once_cb_io (EV_P_ struct ev_io *w, int revents) 2371once_cb_io (EV_P_ ev_io *w, int revents)
1593{ 2372{
1594 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2373 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1595} 2374}
1596 2375
1597static void 2376static void
1598once_cb_to (EV_P_ struct ev_timer *w, int revents) 2377once_cb_to (EV_P_ ev_timer *w, int revents)
1599{ 2378{
1600 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2379 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1601} 2380}
1602 2381
1603void 2382void
1604ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2383ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1605{ 2384{
1606 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2385 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1607 2386
1608 if (!once) 2387 if (expect_false (!once))
2388 {
1609 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2389 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1610 else 2390 return;
1611 { 2391 }
2392
1612 once->cb = cb; 2393 once->cb = cb;
1613 once->arg = arg; 2394 once->arg = arg;
1614 2395
1615 ev_init (&once->io, once_cb_io); 2396 ev_init (&once->io, once_cb_io);
1616 if (fd >= 0) 2397 if (fd >= 0)
1617 { 2398 {
1618 ev_io_set (&once->io, fd, events); 2399 ev_io_set (&once->io, fd, events);
1619 ev_io_start (EV_A_ &once->io); 2400 ev_io_start (EV_A_ &once->io);
1620 } 2401 }
1621 2402
1622 ev_init (&once->to, once_cb_to); 2403 ev_init (&once->to, once_cb_to);
1623 if (timeout >= 0.) 2404 if (timeout >= 0.)
1624 { 2405 {
1625 ev_timer_set (&once->to, timeout, 0.); 2406 ev_timer_set (&once->to, timeout, 0.);
1626 ev_timer_start (EV_A_ &once->to); 2407 ev_timer_start (EV_A_ &once->to);
1627 }
1628 } 2408 }
1629} 2409}
2410
2411#if EV_MULTIPLICITY
2412 #include "ev_wrap.h"
2413#endif
1630 2414
1631#ifdef __cplusplus 2415#ifdef __cplusplus
1632} 2416}
1633#endif 2417#endif
1634 2418

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