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Comparing libev/ev.c (file contents):
Revision 1.99 by root, Sun Nov 11 02:26:47 2007 UTC vs.
Revision 1.187 by root, Sun Dec 16 21:54:28 2007 UTC

… …
32#ifdef __cplusplus 32#ifdef __cplusplus
33extern "C" { 33extern "C" {
34#endif 34#endif
35 35
36#ifndef EV_STANDALONE 36#ifndef EV_STANDALONE
37# ifdef EV_CONFIG_H
38# include EV_CONFIG_H
39# else
37# include "config.h" 40# include "config.h"
41# endif
38 42
39# if HAVE_CLOCK_GETTIME 43# if HAVE_CLOCK_GETTIME
40# ifndef EV_USE_MONOTONIC 44# ifndef EV_USE_MONOTONIC
41# define EV_USE_MONOTONIC 1 45# define EV_USE_MONOTONIC 1
42# endif 46# endif
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_SELECT
60# if HAVE_SELECT && HAVE_SYS_SELECT_H
49# define EV_USE_SELECT 1 61# define EV_USE_SELECT 1
62# else
63# define EV_USE_SELECT 0
64# endif
50# endif 65# endif
51 66
52# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) 67# ifndef EV_USE_POLL
68# if HAVE_POLL && HAVE_POLL_H
53# define EV_USE_POLL 1 69# define EV_USE_POLL 1
70# else
71# define EV_USE_POLL 0
72# endif
54# endif 73# endif
55 74
56# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) 75# ifndef EV_USE_EPOLL
76# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
57# define EV_USE_EPOLL 1 77# define EV_USE_EPOLL 1
78# else
79# define EV_USE_EPOLL 0
80# endif
58# endif 81# endif
59 82
83# ifndef EV_USE_KQUEUE
60# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) 84# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61# define EV_USE_KQUEUE 1 85# define EV_USE_KQUEUE 1
86# else
87# define EV_USE_KQUEUE 0
88# endif
89# endif
90
91# ifndef EV_USE_PORT
92# if HAVE_PORT_H && HAVE_PORT_CREATE
93# define EV_USE_PORT 1
94# else
95# define EV_USE_PORT 0
96# endif
97# endif
98
99# ifndef EV_USE_INOTIFY
100# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
101# define EV_USE_INOTIFY 1
102# else
103# define EV_USE_INOTIFY 0
104# endif
62# endif 105# endif
63 106
64#endif 107#endif
65 108
66#include <math.h> 109#include <math.h>
… …
75#include <sys/types.h> 118#include <sys/types.h>
76#include <time.h> 119#include <time.h>
77 120
78#include <signal.h> 121#include <signal.h>
79 122
80#ifndef WIN32
81# include <unistd.h>
82# include <sys/time.h>
83# include <sys/wait.h>
84#endif
85/**/
86
87#ifndef EV_USE_MONOTONIC
88# define EV_USE_MONOTONIC 1
89#endif
90
91#ifndef EV_USE_SELECT
92# define EV_USE_SELECT 1
93#endif
94
95#ifndef EV_USE_POLL
96# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
97#endif
98
99#ifndef EV_USE_EPOLL
100# define EV_USE_EPOLL 0
101#endif
102
103#ifndef EV_USE_KQUEUE
104# define EV_USE_KQUEUE 0
105#endif
106
107#ifndef EV_USE_WIN32
108# ifdef WIN32
109# define EV_USE_WIN32 0 /* it does not exist, use select */
110# undef EV_USE_SELECT
111# define EV_USE_SELECT 1
112# else
113# define EV_USE_WIN32 0
114# endif
115#endif
116
117#ifndef EV_USE_REALTIME
118# define EV_USE_REALTIME 1
119#endif
120
121/**/
122
123#ifndef CLOCK_MONOTONIC
124# undef EV_USE_MONOTONIC
125# define EV_USE_MONOTONIC 0
126#endif
127
128#ifndef CLOCK_REALTIME
129# undef EV_USE_REALTIME
130# define EV_USE_REALTIME 0
131#endif
132
133/**/
134
135#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
136#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
137#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
138/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
139
140#ifdef EV_H 123#ifdef EV_H
141# include EV_H 124# include EV_H
142#else 125#else
143# include "ev.h" 126# include "ev.h"
144#endif 127#endif
145 128
129#ifndef _WIN32
130# include <sys/time.h>
131# include <sys/wait.h>
132# include <unistd.h>
133#else
134# define WIN32_LEAN_AND_MEAN
135# include <windows.h>
136# ifndef EV_SELECT_IS_WINSOCKET
137# define EV_SELECT_IS_WINSOCKET 1
138# endif
139#endif
140
141/**/
142
143#ifndef EV_USE_MONOTONIC
144# define EV_USE_MONOTONIC 0
145#endif
146
147#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0
149#endif
150
151#ifndef EV_USE_SELECT
152# define EV_USE_SELECT 1
153#endif
154
155#ifndef EV_USE_POLL
156# ifdef _WIN32
157# define EV_USE_POLL 0
158# else
159# define EV_USE_POLL 1
160# endif
161#endif
162
163#ifndef EV_USE_EPOLL
164# define EV_USE_EPOLL 0
165#endif
166
167#ifndef EV_USE_KQUEUE
168# define EV_USE_KQUEUE 0
169#endif
170
171#ifndef EV_USE_PORT
172# define EV_USE_PORT 0
173#endif
174
175#ifndef EV_USE_INOTIFY
176# define EV_USE_INOTIFY 0
177#endif
178
179#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1
182# else
183# define EV_PID_HASHSIZE 16
184# endif
185#endif
186
187#ifndef EV_INOTIFY_HASHSIZE
188# if EV_MINIMAL
189# define EV_INOTIFY_HASHSIZE 1
190# else
191# define EV_INOTIFY_HASHSIZE 16
192# endif
193#endif
194
195/**/
196
197#ifndef CLOCK_MONOTONIC
198# undef EV_USE_MONOTONIC
199# define EV_USE_MONOTONIC 0
200#endif
201
202#ifndef CLOCK_REALTIME
203# undef EV_USE_REALTIME
204# define EV_USE_REALTIME 0
205#endif
206
207#if !EV_STAT_ENABLE
208# undef EV_USE_INOTIFY
209# define EV_USE_INOTIFY 0
210#endif
211
212#if EV_USE_INOTIFY
213# include <sys/inotify.h>
214#endif
215
216#if EV_SELECT_IS_WINSOCKET
217# include <winsock.h>
218#endif
219
220/**/
221
222/*
223 * This is used to avoid floating point rounding problems.
224 * It is added to ev_rt_now when scheduling periodics
225 * to ensure progress, time-wise, even when rounding
226 * errors are against us.
227 * This value is good at least till the year 4000.
228 * Better solutions welcome.
229 */
230#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
231
232#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
233#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
234/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
235
146#if __GNUC__ >= 3 236#if __GNUC__ >= 4
147# define expect(expr,value) __builtin_expect ((expr),(value)) 237# define expect(expr,value) __builtin_expect ((expr),(value))
148# define inline inline 238# define noinline __attribute__ ((noinline))
149#else 239#else
150# define expect(expr,value) (expr) 240# define expect(expr,value) (expr)
151# define inline static 241# define noinline
242# if __STDC_VERSION__ < 199901L
243# define inline
244# endif
152#endif 245#endif
153 246
154#define expect_false(expr) expect ((expr) != 0, 0) 247#define expect_false(expr) expect ((expr) != 0, 0)
155#define expect_true(expr) expect ((expr) != 0, 1) 248#define expect_true(expr) expect ((expr) != 0, 1)
249#define inline_size static inline
250
251#if EV_MINIMAL
252# define inline_speed static noinline
253#else
254# define inline_speed static inline
255#endif
156 256
157#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 257#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
158#define ABSPRI(w) ((w)->priority - EV_MINPRI) 258#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
159 259
260#define EMPTY /* required for microsofts broken pseudo-c compiler */
261#define EMPTY2(a,b) /* used to suppress some warnings */
262
160typedef struct ev_watcher *W; 263typedef ev_watcher *W;
161typedef struct ev_watcher_list *WL; 264typedef ev_watcher_list *WL;
162typedef struct ev_watcher_time *WT; 265typedef ev_watcher_time *WT;
163 266
164static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 267static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
165 268
166#ifdef WIN32 269#ifdef _WIN32
167# include "ev_win32.c" 270# include "ev_win32.c"
168#endif 271#endif
169 272
170/*****************************************************************************/ 273/*****************************************************************************/
171 274
172static void (*syserr_cb)(const char *msg); 275static void (*syserr_cb)(const char *msg);
173 276
277void
174void ev_set_syserr_cb (void (*cb)(const char *msg)) 278ev_set_syserr_cb (void (*cb)(const char *msg))
175{ 279{
176 syserr_cb = cb; 280 syserr_cb = cb;
177} 281}
178 282
179static void 283static void noinline
180syserr (const char *msg) 284syserr (const char *msg)
181{ 285{
182 if (!msg) 286 if (!msg)
183 msg = "(libev) system error"; 287 msg = "(libev) system error";
184 288
… …
191 } 295 }
192} 296}
193 297
194static void *(*alloc)(void *ptr, long size); 298static void *(*alloc)(void *ptr, long size);
195 299
300void
196void ev_set_allocator (void *(*cb)(void *ptr, long size)) 301ev_set_allocator (void *(*cb)(void *ptr, long size))
197{ 302{
198 alloc = cb; 303 alloc = cb;
199} 304}
200 305
201static void * 306inline_speed void *
202ev_realloc (void *ptr, long size) 307ev_realloc (void *ptr, long size)
203{ 308{
204 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 309 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
205 310
206 if (!ptr && size) 311 if (!ptr && size)
… …
220typedef struct 325typedef struct
221{ 326{
222 WL head; 327 WL head;
223 unsigned char events; 328 unsigned char events;
224 unsigned char reify; 329 unsigned char reify;
330#if EV_SELECT_IS_WINSOCKET
331 SOCKET handle;
332#endif
225} ANFD; 333} ANFD;
226 334
227typedef struct 335typedef struct
228{ 336{
229 W w; 337 W w;
230 int events; 338 int events;
231} ANPENDING; 339} ANPENDING;
340
341#if EV_USE_INOTIFY
342typedef struct
343{
344 WL head;
345} ANFS;
346#endif
232 347
233#if EV_MULTIPLICITY 348#if EV_MULTIPLICITY
234 349
235 struct ev_loop 350 struct ev_loop
236 { 351 {
… …
240 #include "ev_vars.h" 355 #include "ev_vars.h"
241 #undef VAR 356 #undef VAR
242 }; 357 };
243 #include "ev_wrap.h" 358 #include "ev_wrap.h"
244 359
245 struct ev_loop default_loop_struct; 360 static struct ev_loop default_loop_struct;
246 static struct ev_loop *default_loop; 361 struct ev_loop *ev_default_loop_ptr;
247 362
248#else 363#else
249 364
250 ev_tstamp ev_rt_now; 365 ev_tstamp ev_rt_now;
251 #define VAR(name,decl) static decl; 366 #define VAR(name,decl) static decl;
252 #include "ev_vars.h" 367 #include "ev_vars.h"
253 #undef VAR 368 #undef VAR
254 369
255 static int default_loop; 370 static int ev_default_loop_ptr;
256 371
257#endif 372#endif
258 373
259/*****************************************************************************/ 374/*****************************************************************************/
260 375
… …
270 gettimeofday (&tv, 0); 385 gettimeofday (&tv, 0);
271 return tv.tv_sec + tv.tv_usec * 1e-6; 386 return tv.tv_sec + tv.tv_usec * 1e-6;
272#endif 387#endif
273} 388}
274 389
275inline ev_tstamp 390ev_tstamp inline_size
276get_clock (void) 391get_clock (void)
277{ 392{
278#if EV_USE_MONOTONIC 393#if EV_USE_MONOTONIC
279 if (expect_true (have_monotonic)) 394 if (expect_true (have_monotonic))
280 { 395 {
… …
293{ 408{
294 return ev_rt_now; 409 return ev_rt_now;
295} 410}
296#endif 411#endif
297 412
298#define array_roundsize(type,n) ((n) | 4 & ~3) 413int inline_size
414array_nextsize (int elem, int cur, int cnt)
415{
416 int ncur = cur + 1;
417
418 do
419 ncur <<= 1;
420 while (cnt > ncur);
421
422 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
423 if (elem * ncur > 4096)
424 {
425 ncur *= elem;
426 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
427 ncur = ncur - sizeof (void *) * 4;
428 ncur /= elem;
429 }
430
431 return ncur;
432}
433
434static noinline void *
435array_realloc (int elem, void *base, int *cur, int cnt)
436{
437 *cur = array_nextsize (elem, *cur, cnt);
438 return ev_realloc (base, elem * *cur);
439}
299 440
300#define array_needsize(type,base,cur,cnt,init) \ 441#define array_needsize(type,base,cur,cnt,init) \
301 if (expect_false ((cnt) > cur)) \ 442 if (expect_false ((cnt) > (cur))) \
302 { \ 443 { \
303 int newcnt = cur; \ 444 int ocur_ = (cur); \
304 do \ 445 (base) = (type *)array_realloc \
305 { \ 446 (sizeof (type), (base), &(cur), (cnt)); \
306 newcnt = array_roundsize (type, newcnt << 1); \ 447 init ((base) + (ocur_), (cur) - ocur_); \
307 } \
308 while ((cnt) > newcnt); \
309 \
310 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
311 init (base + cur, newcnt - cur); \
312 cur = newcnt; \
313 } 448 }
314 449
450#if 0
315#define array_slim(type,stem) \ 451#define array_slim(type,stem) \
316 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 452 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
317 { \ 453 { \
318 stem ## max = array_roundsize (stem ## cnt >> 1); \ 454 stem ## max = array_roundsize (stem ## cnt >> 1); \
319 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 455 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
320 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 456 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
321 } 457 }
322 458#endif
323/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
324/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
325#define array_free_microshit(stem) \
326 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
327 459
328#define array_free(stem, idx) \ 460#define array_free(stem, idx) \
329 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 461 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
330 462
331/*****************************************************************************/ 463/*****************************************************************************/
332 464
333static void 465void noinline
466ev_feed_event (EV_P_ void *w, int revents)
467{
468 W w_ = (W)w;
469 int pri = ABSPRI (w_);
470
471 if (expect_false (w_->pending))
472 pendings [pri][w_->pending - 1].events |= revents;
473 else
474 {
475 w_->pending = ++pendingcnt [pri];
476 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
477 pendings [pri][w_->pending - 1].w = w_;
478 pendings [pri][w_->pending - 1].events = revents;
479 }
480}
481
482void inline_speed
483queue_events (EV_P_ W *events, int eventcnt, int type)
484{
485 int i;
486
487 for (i = 0; i < eventcnt; ++i)
488 ev_feed_event (EV_A_ events [i], type);
489}
490
491/*****************************************************************************/
492
493void inline_size
334anfds_init (ANFD *base, int count) 494anfds_init (ANFD *base, int count)
335{ 495{
336 while (count--) 496 while (count--)
337 { 497 {
338 base->head = 0; 498 base->head = 0;
… …
341 501
342 ++base; 502 ++base;
343 } 503 }
344} 504}
345 505
346void 506void inline_speed
347ev_feed_event (EV_P_ void *w, int revents)
348{
349 W w_ = (W)w;
350
351 if (w_->pending)
352 {
353 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
354 return;
355 }
356
357 w_->pending = ++pendingcnt [ABSPRI (w_)];
358 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
359 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
360 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
361}
362
363static void
364queue_events (EV_P_ W *events, int eventcnt, int type)
365{
366 int i;
367
368 for (i = 0; i < eventcnt; ++i)
369 ev_feed_event (EV_A_ events [i], type);
370}
371
372inline void
373fd_event (EV_P_ int fd, int revents) 507fd_event (EV_P_ int fd, int revents)
374{ 508{
375 ANFD *anfd = anfds + fd; 509 ANFD *anfd = anfds + fd;
376 struct ev_io *w; 510 ev_io *w;
377 511
378 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 512 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
379 { 513 {
380 int ev = w->events & revents; 514 int ev = w->events & revents;
381 515
382 if (ev) 516 if (ev)
383 ev_feed_event (EV_A_ (W)w, ev); 517 ev_feed_event (EV_A_ (W)w, ev);
… …
385} 519}
386 520
387void 521void
388ev_feed_fd_event (EV_P_ int fd, int revents) 522ev_feed_fd_event (EV_P_ int fd, int revents)
389{ 523{
524 if (fd >= 0 && fd < anfdmax)
390 fd_event (EV_A_ fd, revents); 525 fd_event (EV_A_ fd, revents);
391} 526}
392 527
393/*****************************************************************************/ 528void inline_size
394
395static void
396fd_reify (EV_P) 529fd_reify (EV_P)
397{ 530{
398 int i; 531 int i;
399 532
400 for (i = 0; i < fdchangecnt; ++i) 533 for (i = 0; i < fdchangecnt; ++i)
401 { 534 {
402 int fd = fdchanges [i]; 535 int fd = fdchanges [i];
403 ANFD *anfd = anfds + fd; 536 ANFD *anfd = anfds + fd;
404 struct ev_io *w; 537 ev_io *w;
405 538
406 int events = 0; 539 unsigned char events = 0;
407 540
408 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 541 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
409 events |= w->events; 542 events |= (unsigned char)w->events;
410 543
544#if EV_SELECT_IS_WINSOCKET
545 if (events)
546 {
547 unsigned long argp;
548 anfd->handle = _get_osfhandle (fd);
549 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
550 }
551#endif
552
553 {
554 unsigned char o_events = anfd->events;
555 unsigned char o_reify = anfd->reify;
556
411 anfd->reify = 0; 557 anfd->reify = 0;
412
413 method_modify (EV_A_ fd, anfd->events, events);
414 anfd->events = events; 558 anfd->events = events;
559
560 if (o_events != events || o_reify & EV_IOFDSET)
561 backend_modify (EV_A_ fd, o_events, events);
562 }
415 } 563 }
416 564
417 fdchangecnt = 0; 565 fdchangecnt = 0;
418} 566}
419 567
420static void 568void inline_size
421fd_change (EV_P_ int fd) 569fd_change (EV_P_ int fd, int flags)
422{ 570{
423 if (anfds [fd].reify) 571 unsigned char reify = anfds [fd].reify;
424 return;
425
426 anfds [fd].reify = 1; 572 anfds [fd].reify |= flags;
427 573
574 if (expect_true (!reify))
575 {
428 ++fdchangecnt; 576 ++fdchangecnt;
429 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 577 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
430 fdchanges [fdchangecnt - 1] = fd; 578 fdchanges [fdchangecnt - 1] = fd;
579 }
431} 580}
432 581
433static void 582void inline_speed
434fd_kill (EV_P_ int fd) 583fd_kill (EV_P_ int fd)
435{ 584{
436 struct ev_io *w; 585 ev_io *w;
437 586
438 while ((w = (struct ev_io *)anfds [fd].head)) 587 while ((w = (ev_io *)anfds [fd].head))
439 { 588 {
440 ev_io_stop (EV_A_ w); 589 ev_io_stop (EV_A_ w);
441 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 590 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
442 } 591 }
443} 592}
444 593
445static int 594int inline_size
446fd_valid (int fd) 595fd_valid (int fd)
447{ 596{
448#ifdef WIN32 597#ifdef _WIN32
449 return !!win32_get_osfhandle (fd); 598 return _get_osfhandle (fd) != -1;
450#else 599#else
451 return fcntl (fd, F_GETFD) != -1; 600 return fcntl (fd, F_GETFD) != -1;
452#endif 601#endif
453} 602}
454 603
455/* called on EBADF to verify fds */ 604/* called on EBADF to verify fds */
456static void 605static void noinline
457fd_ebadf (EV_P) 606fd_ebadf (EV_P)
458{ 607{
459 int fd; 608 int fd;
460 609
461 for (fd = 0; fd < anfdmax; ++fd) 610 for (fd = 0; fd < anfdmax; ++fd)
… …
463 if (!fd_valid (fd) == -1 && errno == EBADF) 612 if (!fd_valid (fd) == -1 && errno == EBADF)
464 fd_kill (EV_A_ fd); 613 fd_kill (EV_A_ fd);
465} 614}
466 615
467/* called on ENOMEM in select/poll to kill some fds and retry */ 616/* called on ENOMEM in select/poll to kill some fds and retry */
468static void 617static void noinline
469fd_enomem (EV_P) 618fd_enomem (EV_P)
470{ 619{
471 int fd; 620 int fd;
472 621
473 for (fd = anfdmax; fd--; ) 622 for (fd = anfdmax; fd--; )
… …
476 fd_kill (EV_A_ fd); 625 fd_kill (EV_A_ fd);
477 return; 626 return;
478 } 627 }
479} 628}
480 629
481/* usually called after fork if method needs to re-arm all fds from scratch */ 630/* usually called after fork if backend needs to re-arm all fds from scratch */
482static void 631static void noinline
483fd_rearm_all (EV_P) 632fd_rearm_all (EV_P)
484{ 633{
485 int fd; 634 int fd;
486 635
487 /* this should be highly optimised to not do anything but set a flag */
488 for (fd = 0; fd < anfdmax; ++fd) 636 for (fd = 0; fd < anfdmax; ++fd)
489 if (anfds [fd].events) 637 if (anfds [fd].events)
490 { 638 {
491 anfds [fd].events = 0; 639 anfds [fd].events = 0;
492 fd_change (EV_A_ fd); 640 fd_change (EV_A_ fd, EV_IOFDSET | 1);
493 } 641 }
494} 642}
495 643
496/*****************************************************************************/ 644/*****************************************************************************/
497 645
498static void 646void inline_speed
499upheap (WT *heap, int k) 647upheap (WT *heap, int k)
500{ 648{
501 WT w = heap [k]; 649 WT w = heap [k];
502 650
503 while (k && heap [k >> 1]->at > w->at) 651 while (k)
504 { 652 {
653 int p = (k - 1) >> 1;
654
655 if (heap [p]->at <= w->at)
656 break;
657
505 heap [k] = heap [k >> 1]; 658 heap [k] = heap [p];
506 ((W)heap [k])->active = k + 1; 659 ((W)heap [k])->active = k + 1;
507 k >>= 1; 660 k = p;
508 } 661 }
509 662
510 heap [k] = w; 663 heap [k] = w;
511 ((W)heap [k])->active = k + 1; 664 ((W)heap [k])->active = k + 1;
512
513} 665}
514 666
515static void 667void inline_speed
516downheap (WT *heap, int N, int k) 668downheap (WT *heap, int N, int k)
517{ 669{
518 WT w = heap [k]; 670 WT w = heap [k];
519 671
520 while (k < (N >> 1)) 672 for (;;)
521 { 673 {
522 int j = k << 1; 674 int c = (k << 1) + 1;
523 675
524 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 676 if (c >= N)
525 ++j;
526
527 if (w->at <= heap [j]->at)
528 break; 677 break;
529 678
679 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
680 ? 1 : 0;
681
682 if (w->at <= heap [c]->at)
683 break;
684
530 heap [k] = heap [j]; 685 heap [k] = heap [c];
531 ((W)heap [k])->active = k + 1; 686 ((W)heap [k])->active = k + 1;
687
532 k = j; 688 k = c;
533 } 689 }
534 690
535 heap [k] = w; 691 heap [k] = w;
536 ((W)heap [k])->active = k + 1; 692 ((W)heap [k])->active = k + 1;
537} 693}
538 694
539inline void 695void inline_size
540adjustheap (WT *heap, int N, int k) 696adjustheap (WT *heap, int N, int k)
541{ 697{
542 upheap (heap, k); 698 upheap (heap, k);
543 downheap (heap, N, k); 699 downheap (heap, N, k);
544} 700}
… …
554static ANSIG *signals; 710static ANSIG *signals;
555static int signalmax; 711static int signalmax;
556 712
557static int sigpipe [2]; 713static int sigpipe [2];
558static sig_atomic_t volatile gotsig; 714static sig_atomic_t volatile gotsig;
559static struct ev_io sigev; 715static ev_io sigev;
560 716
561static void 717void inline_size
562signals_init (ANSIG *base, int count) 718signals_init (ANSIG *base, int count)
563{ 719{
564 while (count--) 720 while (count--)
565 { 721 {
566 base->head = 0; 722 base->head = 0;
… …
571} 727}
572 728
573static void 729static void
574sighandler (int signum) 730sighandler (int signum)
575{ 731{
576#if WIN32 732#if _WIN32
577 signal (signum, sighandler); 733 signal (signum, sighandler);
578#endif 734#endif
579 735
580 signals [signum - 1].gotsig = 1; 736 signals [signum - 1].gotsig = 1;
581 737
582 if (!gotsig) 738 if (!gotsig)
583 { 739 {
584 int old_errno = errno; 740 int old_errno = errno;
585 gotsig = 1; 741 gotsig = 1;
586#ifdef WIN32
587 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
588#else
589 write (sigpipe [1], &signum, 1); 742 write (sigpipe [1], &signum, 1);
590#endif
591 errno = old_errno; 743 errno = old_errno;
592 } 744 }
593} 745}
594 746
595void 747void noinline
596ev_feed_signal_event (EV_P_ int signum) 748ev_feed_signal_event (EV_P_ int signum)
597{ 749{
598 WL w; 750 WL w;
599 751
600#if EV_MULTIPLICITY 752#if EV_MULTIPLICITY
601 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 753 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
602#endif 754#endif
603 755
604 --signum; 756 --signum;
605 757
606 if (signum < 0 || signum >= signalmax) 758 if (signum < 0 || signum >= signalmax)
… …
611 for (w = signals [signum].head; w; w = w->next) 763 for (w = signals [signum].head; w; w = w->next)
612 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 764 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
613} 765}
614 766
615static void 767static void
616sigcb (EV_P_ struct ev_io *iow, int revents) 768sigcb (EV_P_ ev_io *iow, int revents)
617{ 769{
618 int signum; 770 int signum;
619 771
620#ifdef WIN32
621 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
622#else
623 read (sigpipe [0], &revents, 1); 772 read (sigpipe [0], &revents, 1);
624#endif
625 gotsig = 0; 773 gotsig = 0;
626 774
627 for (signum = signalmax; signum--; ) 775 for (signum = signalmax; signum--; )
628 if (signals [signum].gotsig) 776 if (signals [signum].gotsig)
629 ev_feed_signal_event (EV_A_ signum + 1); 777 ev_feed_signal_event (EV_A_ signum + 1);
630} 778}
631 779
632static void 780void inline_speed
781fd_intern (int fd)
782{
783#ifdef _WIN32
784 int arg = 1;
785 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
786#else
787 fcntl (fd, F_SETFD, FD_CLOEXEC);
788 fcntl (fd, F_SETFL, O_NONBLOCK);
789#endif
790}
791
792static void noinline
633siginit (EV_P) 793siginit (EV_P)
634{ 794{
635#ifndef WIN32 795 fd_intern (sigpipe [0]);
636 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 796 fd_intern (sigpipe [1]);
637 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
638
639 /* rather than sort out wether we really need nb, set it */
640 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
641 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
642#endif
643 797
644 ev_io_set (&sigev, sigpipe [0], EV_READ); 798 ev_io_set (&sigev, sigpipe [0], EV_READ);
645 ev_io_start (EV_A_ &sigev); 799 ev_io_start (EV_A_ &sigev);
646 ev_unref (EV_A); /* child watcher should not keep loop alive */ 800 ev_unref (EV_A); /* child watcher should not keep loop alive */
647} 801}
648 802
649/*****************************************************************************/ 803/*****************************************************************************/
650 804
651static struct ev_child *childs [PID_HASHSIZE]; 805static WL childs [EV_PID_HASHSIZE];
652 806
653#ifndef WIN32 807#ifndef _WIN32
654 808
655static struct ev_signal childev; 809static ev_signal childev;
810
811void inline_speed
812child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
813{
814 ev_child *w;
815
816 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
817 if (w->pid == pid || !w->pid)
818 {
819 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
820 w->rpid = pid;
821 w->rstatus = status;
822 ev_feed_event (EV_A_ (W)w, EV_CHILD);
823 }
824}
656 825
657#ifndef WCONTINUED 826#ifndef WCONTINUED
658# define WCONTINUED 0 827# define WCONTINUED 0
659#endif 828#endif
660 829
661static void 830static void
662child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
663{
664 struct ev_child *w;
665
666 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
667 if (w->pid == pid || !w->pid)
668 {
669 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
670 w->rpid = pid;
671 w->rstatus = status;
672 ev_feed_event (EV_A_ (W)w, EV_CHILD);
673 }
674}
675
676static void
677childcb (EV_P_ struct ev_signal *sw, int revents) 831childcb (EV_P_ ev_signal *sw, int revents)
678{ 832{
679 int pid, status; 833 int pid, status;
680 834
835 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
681 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 836 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
682 { 837 if (!WCONTINUED
838 || errno != EINVAL
839 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
840 return;
841
683 /* make sure we are called again until all childs have been reaped */ 842 /* make sure we are called again until all childs have been reaped */
843 /* we need to do it this way so that the callback gets called before we continue */
684 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 844 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
685 845
686 child_reap (EV_A_ sw, pid, pid, status); 846 child_reap (EV_A_ sw, pid, pid, status);
847 if (EV_PID_HASHSIZE > 1)
687 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 848 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
688 }
689} 849}
690 850
691#endif 851#endif
692 852
693/*****************************************************************************/ 853/*****************************************************************************/
694 854
855#if EV_USE_PORT
856# include "ev_port.c"
857#endif
695#if EV_USE_KQUEUE 858#if EV_USE_KQUEUE
696# include "ev_kqueue.c" 859# include "ev_kqueue.c"
697#endif 860#endif
698#if EV_USE_EPOLL 861#if EV_USE_EPOLL
699# include "ev_epoll.c" 862# include "ev_epoll.c"
… …
716{ 879{
717 return EV_VERSION_MINOR; 880 return EV_VERSION_MINOR;
718} 881}
719 882
720/* return true if we are running with elevated privileges and should ignore env variables */ 883/* return true if we are running with elevated privileges and should ignore env variables */
721static int 884int inline_size
722enable_secure (void) 885enable_secure (void)
723{ 886{
724#ifdef WIN32 887#ifdef _WIN32
725 return 0; 888 return 0;
726#else 889#else
727 return getuid () != geteuid () 890 return getuid () != geteuid ()
728 || getgid () != getegid (); 891 || getgid () != getegid ();
729#endif 892#endif
730} 893}
731 894
732int 895unsigned int
733ev_method (EV_P) 896ev_supported_backends (void)
734{ 897{
735 return method; 898 unsigned int flags = 0;
736}
737 899
738static void 900 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
739loop_init (EV_P_ int methods) 901 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
902 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
903 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
904 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
905
906 return flags;
907}
908
909unsigned int
910ev_recommended_backends (void)
740{ 911{
741 if (!method) 912 unsigned int flags = ev_supported_backends ();
913
914#ifndef __NetBSD__
915 /* kqueue is borked on everything but netbsd apparently */
916 /* it usually doesn't work correctly on anything but sockets and pipes */
917 flags &= ~EVBACKEND_KQUEUE;
918#endif
919#ifdef __APPLE__
920 // flags &= ~EVBACKEND_KQUEUE; for documentation
921 flags &= ~EVBACKEND_POLL;
922#endif
923
924 return flags;
925}
926
927unsigned int
928ev_embeddable_backends (void)
929{
930 return EVBACKEND_EPOLL
931 | EVBACKEND_KQUEUE
932 | EVBACKEND_PORT;
933}
934
935unsigned int
936ev_backend (EV_P)
937{
938 return backend;
939}
940
941unsigned int
942ev_loop_count (EV_P)
943{
944 return loop_count;
945}
946
947static void noinline
948loop_init (EV_P_ unsigned int flags)
949{
950 if (!backend)
742 { 951 {
743#if EV_USE_MONOTONIC 952#if EV_USE_MONOTONIC
744 { 953 {
745 struct timespec ts; 954 struct timespec ts;
746 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 955 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
751 ev_rt_now = ev_time (); 960 ev_rt_now = ev_time ();
752 mn_now = get_clock (); 961 mn_now = get_clock ();
753 now_floor = mn_now; 962 now_floor = mn_now;
754 rtmn_diff = ev_rt_now - mn_now; 963 rtmn_diff = ev_rt_now - mn_now;
755 964
756 if (methods == EVMETHOD_AUTO) 965 /* pid check not overridable via env */
757 if (!enable_secure () && getenv ("LIBEV_METHODS")) 966#ifndef _WIN32
967 if (flags & EVFLAG_FORKCHECK)
968 curpid = getpid ();
969#endif
970
971 if (!(flags & EVFLAG_NOENV)
972 && !enable_secure ()
973 && getenv ("LIBEV_FLAGS"))
758 methods = atoi (getenv ("LIBEV_METHODS")); 974 flags = atoi (getenv ("LIBEV_FLAGS"));
759 else
760 methods = EVMETHOD_ANY;
761 975
762 method = 0; 976 if (!(flags & 0x0000ffffUL))
977 flags |= ev_recommended_backends ();
978
979 backend = 0;
980 backend_fd = -1;
763#if EV_USE_WIN32 981#if EV_USE_INOTIFY
764 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); 982 fs_fd = -2;
983#endif
984
985#if EV_USE_PORT
986 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
765#endif 987#endif
766#if EV_USE_KQUEUE 988#if EV_USE_KQUEUE
767 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 989 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
768#endif 990#endif
769#if EV_USE_EPOLL 991#if EV_USE_EPOLL
770 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 992 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
771#endif 993#endif
772#if EV_USE_POLL 994#if EV_USE_POLL
773 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 995 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
774#endif 996#endif
775#if EV_USE_SELECT 997#if EV_USE_SELECT
776 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 998 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
777#endif 999#endif
778 1000
779 ev_init (&sigev, sigcb); 1001 ev_init (&sigev, sigcb);
780 ev_set_priority (&sigev, EV_MAXPRI); 1002 ev_set_priority (&sigev, EV_MAXPRI);
781 } 1003 }
782} 1004}
783 1005
784void 1006static void noinline
785loop_destroy (EV_P) 1007loop_destroy (EV_P)
786{ 1008{
787 int i; 1009 int i;
788 1010
789#if EV_USE_WIN32 1011#if EV_USE_INOTIFY
790 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); 1012 if (fs_fd >= 0)
1013 close (fs_fd);
1014#endif
1015
1016 if (backend_fd >= 0)
1017 close (backend_fd);
1018
1019#if EV_USE_PORT
1020 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
791#endif 1021#endif
792#if EV_USE_KQUEUE 1022#if EV_USE_KQUEUE
793 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1023 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
794#endif 1024#endif
795#if EV_USE_EPOLL 1025#if EV_USE_EPOLL
796 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1026 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
797#endif 1027#endif
798#if EV_USE_POLL 1028#if EV_USE_POLL
799 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1029 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
800#endif 1030#endif
801#if EV_USE_SELECT 1031#if EV_USE_SELECT
802 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1032 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
803#endif 1033#endif
804 1034
805 for (i = NUMPRI; i--; ) 1035 for (i = NUMPRI; i--; )
1036 {
806 array_free (pending, [i]); 1037 array_free (pending, [i]);
1038#if EV_IDLE_ENABLE
1039 array_free (idle, [i]);
1040#endif
1041 }
1042
1043 ev_free (anfds); anfdmax = 0;
807 1044
808 /* have to use the microsoft-never-gets-it-right macro */ 1045 /* have to use the microsoft-never-gets-it-right macro */
809 array_free_microshit (fdchange); 1046 array_free (fdchange, EMPTY);
810 array_free_microshit (timer); 1047 array_free (timer, EMPTY);
811#if EV_PERIODICS 1048#if EV_PERIODIC_ENABLE
812 array_free_microshit (periodic); 1049 array_free (periodic, EMPTY);
813#endif 1050#endif
814 array_free_microshit (idle); 1051#if EV_FORK_ENABLE
815 array_free_microshit (prepare); 1052 array_free (fork, EMPTY);
816 array_free_microshit (check); 1053#endif
1054 array_free (prepare, EMPTY);
1055 array_free (check, EMPTY);
817 1056
818 method = 0; 1057 backend = 0;
819} 1058}
820 1059
821static void 1060void inline_size infy_fork (EV_P);
1061
1062void inline_size
822loop_fork (EV_P) 1063loop_fork (EV_P)
823{ 1064{
1065#if EV_USE_PORT
1066 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1067#endif
1068#if EV_USE_KQUEUE
1069 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1070#endif
824#if EV_USE_EPOLL 1071#if EV_USE_EPOLL
825 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1072 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
826#endif 1073#endif
827#if EV_USE_KQUEUE 1074#if EV_USE_INOTIFY
828 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1075 infy_fork (EV_A);
829#endif 1076#endif
830 1077
831 if (ev_is_active (&sigev)) 1078 if (ev_is_active (&sigev))
832 { 1079 {
833 /* default loop */ 1080 /* default loop */
… …
846 postfork = 0; 1093 postfork = 0;
847} 1094}
848 1095
849#if EV_MULTIPLICITY 1096#if EV_MULTIPLICITY
850struct ev_loop * 1097struct ev_loop *
851ev_loop_new (int methods) 1098ev_loop_new (unsigned int flags)
852{ 1099{
853 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1100 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
854 1101
855 memset (loop, 0, sizeof (struct ev_loop)); 1102 memset (loop, 0, sizeof (struct ev_loop));
856 1103
857 loop_init (EV_A_ methods); 1104 loop_init (EV_A_ flags);
858 1105
859 if (ev_method (EV_A)) 1106 if (ev_backend (EV_A))
860 return loop; 1107 return loop;
861 1108
862 return 0; 1109 return 0;
863} 1110}
864 1111
… …
877 1124
878#endif 1125#endif
879 1126
880#if EV_MULTIPLICITY 1127#if EV_MULTIPLICITY
881struct ev_loop * 1128struct ev_loop *
1129ev_default_loop_init (unsigned int flags)
882#else 1130#else
883int 1131int
1132ev_default_loop (unsigned int flags)
884#endif 1133#endif
885ev_default_loop (int methods)
886{ 1134{
887 if (sigpipe [0] == sigpipe [1]) 1135 if (sigpipe [0] == sigpipe [1])
888 if (pipe (sigpipe)) 1136 if (pipe (sigpipe))
889 return 0; 1137 return 0;
890 1138
891 if (!default_loop) 1139 if (!ev_default_loop_ptr)
892 { 1140 {
893#if EV_MULTIPLICITY 1141#if EV_MULTIPLICITY
894 struct ev_loop *loop = default_loop = &default_loop_struct; 1142 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
895#else 1143#else
896 default_loop = 1; 1144 ev_default_loop_ptr = 1;
897#endif 1145#endif
898 1146
899 loop_init (EV_A_ methods); 1147 loop_init (EV_A_ flags);
900 1148
901 if (ev_method (EV_A)) 1149 if (ev_backend (EV_A))
902 { 1150 {
903 siginit (EV_A); 1151 siginit (EV_A);
904 1152
905#ifndef WIN32 1153#ifndef _WIN32
906 ev_signal_init (&childev, childcb, SIGCHLD); 1154 ev_signal_init (&childev, childcb, SIGCHLD);
907 ev_set_priority (&childev, EV_MAXPRI); 1155 ev_set_priority (&childev, EV_MAXPRI);
908 ev_signal_start (EV_A_ &childev); 1156 ev_signal_start (EV_A_ &childev);
909 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1157 ev_unref (EV_A); /* child watcher should not keep loop alive */
910#endif 1158#endif
911 } 1159 }
912 else 1160 else
913 default_loop = 0; 1161 ev_default_loop_ptr = 0;
914 } 1162 }
915 1163
916 return default_loop; 1164 return ev_default_loop_ptr;
917} 1165}
918 1166
919void 1167void
920ev_default_destroy (void) 1168ev_default_destroy (void)
921{ 1169{
922#if EV_MULTIPLICITY 1170#if EV_MULTIPLICITY
923 struct ev_loop *loop = default_loop; 1171 struct ev_loop *loop = ev_default_loop_ptr;
924#endif 1172#endif
925 1173
926#ifndef WIN32 1174#ifndef _WIN32
927 ev_ref (EV_A); /* child watcher */ 1175 ev_ref (EV_A); /* child watcher */
928 ev_signal_stop (EV_A_ &childev); 1176 ev_signal_stop (EV_A_ &childev);
929#endif 1177#endif
930 1178
931 ev_ref (EV_A); /* signal watcher */ 1179 ev_ref (EV_A); /* signal watcher */
… …
939 1187
940void 1188void
941ev_default_fork (void) 1189ev_default_fork (void)
942{ 1190{
943#if EV_MULTIPLICITY 1191#if EV_MULTIPLICITY
944 struct ev_loop *loop = default_loop; 1192 struct ev_loop *loop = ev_default_loop_ptr;
945#endif 1193#endif
946 1194
947 if (method) 1195 if (backend)
948 postfork = 1; 1196 postfork = 1;
949} 1197}
950 1198
951/*****************************************************************************/ 1199/*****************************************************************************/
952 1200
953static int 1201void
954any_pending (EV_P) 1202ev_invoke (EV_P_ void *w, int revents)
955{ 1203{
956 int pri; 1204 EV_CB_INVOKE ((W)w, revents);
957
958 for (pri = NUMPRI; pri--; )
959 if (pendingcnt [pri])
960 return 1;
961
962 return 0;
963} 1205}
964 1206
965static void 1207void inline_speed
966call_pending (EV_P) 1208call_pending (EV_P)
967{ 1209{
968 int pri; 1210 int pri;
969 1211
970 for (pri = NUMPRI; pri--; ) 1212 for (pri = NUMPRI; pri--; )
971 while (pendingcnt [pri]) 1213 while (pendingcnt [pri])
972 { 1214 {
973 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1215 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
974 1216
975 if (p->w) 1217 if (expect_true (p->w))
976 { 1218 {
1219 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1220
977 p->w->pending = 0; 1221 p->w->pending = 0;
978 EV_CB_INVOKE (p->w, p->events); 1222 EV_CB_INVOKE (p->w, p->events);
979 } 1223 }
980 } 1224 }
981} 1225}
982 1226
983static void 1227void inline_size
984timers_reify (EV_P) 1228timers_reify (EV_P)
985{ 1229{
986 while (timercnt && ((WT)timers [0])->at <= mn_now) 1230 while (timercnt && ((WT)timers [0])->at <= mn_now)
987 { 1231 {
988 struct ev_timer *w = timers [0]; 1232 ev_timer *w = (ev_timer *)timers [0];
989 1233
990 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1234 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
991 1235
992 /* first reschedule or stop timer */ 1236 /* first reschedule or stop timer */
993 if (w->repeat) 1237 if (w->repeat)
994 { 1238 {
995 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1239 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
996 1240
997 ((WT)w)->at += w->repeat; 1241 ((WT)w)->at += w->repeat;
998 if (((WT)w)->at < mn_now) 1242 if (((WT)w)->at < mn_now)
999 ((WT)w)->at = mn_now; 1243 ((WT)w)->at = mn_now;
1000 1244
1001 downheap ((WT *)timers, timercnt, 0); 1245 downheap (timers, timercnt, 0);
1002 } 1246 }
1003 else 1247 else
1004 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1248 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1005 1249
1006 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1250 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1007 } 1251 }
1008} 1252}
1009 1253
1010#if EV_PERIODICS 1254#if EV_PERIODIC_ENABLE
1011static void 1255void inline_size
1012periodics_reify (EV_P) 1256periodics_reify (EV_P)
1013{ 1257{
1014 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1258 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1015 { 1259 {
1016 struct ev_periodic *w = periodics [0]; 1260 ev_periodic *w = (ev_periodic *)periodics [0];
1017 1261
1018 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1262 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1019 1263
1020 /* first reschedule or stop timer */ 1264 /* first reschedule or stop timer */
1021 if (w->reschedule_cb) 1265 if (w->reschedule_cb)
1022 { 1266 {
1023 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1267 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1024
1025 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1268 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1026 downheap ((WT *)periodics, periodiccnt, 0); 1269 downheap (periodics, periodiccnt, 0);
1027 } 1270 }
1028 else if (w->interval) 1271 else if (w->interval)
1029 { 1272 {
1030 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1273 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1274 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1031 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1275 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1032 downheap ((WT *)periodics, periodiccnt, 0); 1276 downheap (periodics, periodiccnt, 0);
1033 } 1277 }
1034 else 1278 else
1035 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1279 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1036 1280
1037 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1281 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1038 } 1282 }
1039} 1283}
1040 1284
1041static void 1285static void noinline
1042periodics_reschedule (EV_P) 1286periodics_reschedule (EV_P)
1043{ 1287{
1044 int i; 1288 int i;
1045 1289
1046 /* adjust periodics after time jump */ 1290 /* adjust periodics after time jump */
1047 for (i = 0; i < periodiccnt; ++i) 1291 for (i = 0; i < periodiccnt; ++i)
1048 { 1292 {
1049 struct ev_periodic *w = periodics [i]; 1293 ev_periodic *w = (ev_periodic *)periodics [i];
1050 1294
1051 if (w->reschedule_cb) 1295 if (w->reschedule_cb)
1052 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1296 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1053 else if (w->interval) 1297 else if (w->interval)
1054 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1298 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1055 } 1299 }
1056 1300
1057 /* now rebuild the heap */ 1301 /* now rebuild the heap */
1058 for (i = periodiccnt >> 1; i--; ) 1302 for (i = periodiccnt >> 1; i--; )
1059 downheap ((WT *)periodics, periodiccnt, i); 1303 downheap (periodics, periodiccnt, i);
1060} 1304}
1061#endif 1305#endif
1062 1306
1063inline int 1307#if EV_IDLE_ENABLE
1064time_update_monotonic (EV_P) 1308void inline_size
1309idle_reify (EV_P)
1065{ 1310{
1311 if (expect_false (idleall))
1312 {
1313 int pri;
1314
1315 for (pri = NUMPRI; pri--; )
1316 {
1317 if (pendingcnt [pri])
1318 break;
1319
1320 if (idlecnt [pri])
1321 {
1322 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1323 break;
1324 }
1325 }
1326 }
1327}
1328#endif
1329
1330void inline_speed
1331time_update (EV_P_ ev_tstamp max_block)
1332{
1333 int i;
1334
1335#if EV_USE_MONOTONIC
1336 if (expect_true (have_monotonic))
1337 {
1338 ev_tstamp odiff = rtmn_diff;
1339
1066 mn_now = get_clock (); 1340 mn_now = get_clock ();
1067 1341
1342 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1343 /* interpolate in the meantime */
1068 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1344 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1069 { 1345 {
1070 ev_rt_now = rtmn_diff + mn_now; 1346 ev_rt_now = rtmn_diff + mn_now;
1071 return 0; 1347 return;
1072 } 1348 }
1073 else 1349
1074 {
1075 now_floor = mn_now; 1350 now_floor = mn_now;
1076 ev_rt_now = ev_time (); 1351 ev_rt_now = ev_time ();
1077 return 1;
1078 }
1079}
1080 1352
1081static void 1353 /* loop a few times, before making important decisions.
1082time_update (EV_P) 1354 * on the choice of "4": one iteration isn't enough,
1083{ 1355 * in case we get preempted during the calls to
1084 int i; 1356 * ev_time and get_clock. a second call is almost guaranteed
1085 1357 * to succeed in that case, though. and looping a few more times
1086#if EV_USE_MONOTONIC 1358 * doesn't hurt either as we only do this on time-jumps or
1087 if (expect_true (have_monotonic)) 1359 * in the unlikely event of having been preempted here.
1088 { 1360 */
1089 if (time_update_monotonic (EV_A)) 1361 for (i = 4; --i; )
1090 { 1362 {
1091 ev_tstamp odiff = rtmn_diff;
1092
1093 for (i = 4; --i; ) /* loop a few times, before making important decisions */
1094 {
1095 rtmn_diff = ev_rt_now - mn_now; 1363 rtmn_diff = ev_rt_now - mn_now;
1096 1364
1097 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1365 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1098 return; /* all is well */ 1366 return; /* all is well */
1099 1367
1100 ev_rt_now = ev_time (); 1368 ev_rt_now = ev_time ();
1101 mn_now = get_clock (); 1369 mn_now = get_clock ();
1102 now_floor = mn_now; 1370 now_floor = mn_now;
1103 } 1371 }
1104 1372
1105# if EV_PERIODICS 1373# if EV_PERIODIC_ENABLE
1374 periodics_reschedule (EV_A);
1375# endif
1376 /* no timer adjustment, as the monotonic clock doesn't jump */
1377 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1378 }
1379 else
1380#endif
1381 {
1382 ev_rt_now = ev_time ();
1383
1384 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1385 {
1386#if EV_PERIODIC_ENABLE
1106 periodics_reschedule (EV_A); 1387 periodics_reschedule (EV_A);
1107# endif 1388#endif
1108 /* no timer adjustment, as the monotonic clock doesn't jump */
1109 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1110 }
1111 }
1112 else
1113#endif
1114 {
1115 ev_rt_now = ev_time ();
1116
1117 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1118 {
1119#if EV_PERIODICS
1120 periodics_reschedule (EV_A);
1121#endif
1122
1123 /* adjust timers. this is easy, as the offset is the same for all */ 1389 /* adjust timers. this is easy, as the offset is the same for all of them */
1124 for (i = 0; i < timercnt; ++i) 1390 for (i = 0; i < timercnt; ++i)
1125 ((WT)timers [i])->at += ev_rt_now - mn_now; 1391 ((WT)timers [i])->at += ev_rt_now - mn_now;
1126 } 1392 }
1127 1393
1128 mn_now = ev_rt_now; 1394 mn_now = ev_rt_now;
… …
1144static int loop_done; 1410static int loop_done;
1145 1411
1146void 1412void
1147ev_loop (EV_P_ int flags) 1413ev_loop (EV_P_ int flags)
1148{ 1414{
1149 double block;
1150 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1415 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1416 ? EVUNLOOP_ONE
1417 : EVUNLOOP_CANCEL;
1418
1419 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1151 1420
1152 do 1421 do
1153 { 1422 {
1423#ifndef _WIN32
1424 if (expect_false (curpid)) /* penalise the forking check even more */
1425 if (expect_false (getpid () != curpid))
1426 {
1427 curpid = getpid ();
1428 postfork = 1;
1429 }
1430#endif
1431
1432#if EV_FORK_ENABLE
1433 /* we might have forked, so queue fork handlers */
1434 if (expect_false (postfork))
1435 if (forkcnt)
1436 {
1437 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1438 call_pending (EV_A);
1439 }
1440#endif
1441
1154 /* queue check watchers (and execute them) */ 1442 /* queue prepare watchers (and execute them) */
1155 if (expect_false (preparecnt)) 1443 if (expect_false (preparecnt))
1156 { 1444 {
1157 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1445 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1158 call_pending (EV_A); 1446 call_pending (EV_A);
1159 } 1447 }
1160 1448
1449 if (expect_false (!activecnt))
1450 break;
1451
1161 /* we might have forked, so reify kernel state if necessary */ 1452 /* we might have forked, so reify kernel state if necessary */
1162 if (expect_false (postfork)) 1453 if (expect_false (postfork))
1163 loop_fork (EV_A); 1454 loop_fork (EV_A);
1164 1455
1165 /* update fd-related kernel structures */ 1456 /* update fd-related kernel structures */
1166 fd_reify (EV_A); 1457 fd_reify (EV_A);
1167 1458
1168 /* calculate blocking time */ 1459 /* calculate blocking time */
1460 {
1461 ev_tstamp block;
1169 1462
1170 /* we only need this for !monotonic clock or timers, but as we basically 1463 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1171 always have timers, we just calculate it always */ 1464 block = 0.; /* do not block at all */
1172#if EV_USE_MONOTONIC
1173 if (expect_true (have_monotonic))
1174 time_update_monotonic (EV_A);
1175 else 1465 else
1176#endif
1177 { 1466 {
1178 ev_rt_now = ev_time (); 1467 /* update time to cancel out callback processing overhead */
1179 mn_now = ev_rt_now; 1468 time_update (EV_A_ 1e100);
1180 }
1181 1469
1182 if (flags & EVLOOP_NONBLOCK || idlecnt)
1183 block = 0.;
1184 else
1185 {
1186 block = MAX_BLOCKTIME; 1470 block = MAX_BLOCKTIME;
1187 1471
1188 if (timercnt) 1472 if (timercnt)
1189 { 1473 {
1190 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1474 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1191 if (block > to) block = to; 1475 if (block > to) block = to;
1192 } 1476 }
1193 1477
1194#if EV_PERIODICS 1478#if EV_PERIODIC_ENABLE
1195 if (periodiccnt) 1479 if (periodiccnt)
1196 { 1480 {
1197 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1481 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1198 if (block > to) block = to; 1482 if (block > to) block = to;
1199 } 1483 }
1200#endif 1484#endif
1201 1485
1202 if (block < 0.) block = 0.; 1486 if (expect_false (block < 0.)) block = 0.;
1203 } 1487 }
1204 1488
1489 ++loop_count;
1205 method_poll (EV_A_ block); 1490 backend_poll (EV_A_ block);
1206 1491
1207 /* update ev_rt_now, do magic */ 1492 /* update ev_rt_now, do magic */
1208 time_update (EV_A); 1493 time_update (EV_A_ block);
1494 }
1209 1495
1210 /* queue pending timers and reschedule them */ 1496 /* queue pending timers and reschedule them */
1211 timers_reify (EV_A); /* relative timers called last */ 1497 timers_reify (EV_A); /* relative timers called last */
1212#if EV_PERIODICS 1498#if EV_PERIODIC_ENABLE
1213 periodics_reify (EV_A); /* absolute timers called first */ 1499 periodics_reify (EV_A); /* absolute timers called first */
1214#endif 1500#endif
1215 1501
1502#if EV_IDLE_ENABLE
1216 /* queue idle watchers unless io or timers are pending */ 1503 /* queue idle watchers unless other events are pending */
1217 if (idlecnt && !any_pending (EV_A)) 1504 idle_reify (EV_A);
1218 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1505#endif
1219 1506
1220 /* queue check watchers, to be executed first */ 1507 /* queue check watchers, to be executed first */
1221 if (checkcnt) 1508 if (expect_false (checkcnt))
1222 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1509 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1223 1510
1224 call_pending (EV_A); 1511 call_pending (EV_A);
1512
1225 } 1513 }
1226 while (activecnt && !loop_done); 1514 while (expect_true (activecnt && !loop_done));
1227 1515
1228 if (loop_done != 2) 1516 if (loop_done == EVUNLOOP_ONE)
1229 loop_done = 0; 1517 loop_done = EVUNLOOP_CANCEL;
1230} 1518}
1231 1519
1232void 1520void
1233ev_unloop (EV_P_ int how) 1521ev_unloop (EV_P_ int how)
1234{ 1522{
1235 loop_done = how; 1523 loop_done = how;
1236} 1524}
1237 1525
1238/*****************************************************************************/ 1526/*****************************************************************************/
1239 1527
1240inline void 1528void inline_size
1241wlist_add (WL *head, WL elem) 1529wlist_add (WL *head, WL elem)
1242{ 1530{
1243 elem->next = *head; 1531 elem->next = *head;
1244 *head = elem; 1532 *head = elem;
1245} 1533}
1246 1534
1247inline void 1535void inline_size
1248wlist_del (WL *head, WL elem) 1536wlist_del (WL *head, WL elem)
1249{ 1537{
1250 while (*head) 1538 while (*head)
1251 { 1539 {
1252 if (*head == elem) 1540 if (*head == elem)
… …
1257 1545
1258 head = &(*head)->next; 1546 head = &(*head)->next;
1259 } 1547 }
1260} 1548}
1261 1549
1262inline void 1550void inline_speed
1263ev_clear_pending (EV_P_ W w) 1551clear_pending (EV_P_ W w)
1264{ 1552{
1265 if (w->pending) 1553 if (w->pending)
1266 { 1554 {
1267 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1555 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1268 w->pending = 0; 1556 w->pending = 0;
1269 } 1557 }
1270} 1558}
1271 1559
1272inline void 1560int
1561ev_clear_pending (EV_P_ void *w)
1562{
1563 W w_ = (W)w;
1564 int pending = w_->pending;
1565
1566 if (expect_true (pending))
1567 {
1568 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1569 w_->pending = 0;
1570 p->w = 0;
1571 return p->events;
1572 }
1573 else
1574 return 0;
1575}
1576
1577void inline_size
1578pri_adjust (EV_P_ W w)
1579{
1580 int pri = w->priority;
1581 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1582 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1583 w->priority = pri;
1584}
1585
1586void inline_speed
1273ev_start (EV_P_ W w, int active) 1587ev_start (EV_P_ W w, int active)
1274{ 1588{
1275 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1589 pri_adjust (EV_A_ w);
1276 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1277
1278 w->active = active; 1590 w->active = active;
1279 ev_ref (EV_A); 1591 ev_ref (EV_A);
1280} 1592}
1281 1593
1282inline void 1594void inline_size
1283ev_stop (EV_P_ W w) 1595ev_stop (EV_P_ W w)
1284{ 1596{
1285 ev_unref (EV_A); 1597 ev_unref (EV_A);
1286 w->active = 0; 1598 w->active = 0;
1287} 1599}
1288 1600
1289/*****************************************************************************/ 1601/*****************************************************************************/
1290 1602
1291void 1603void noinline
1292ev_io_start (EV_P_ struct ev_io *w) 1604ev_io_start (EV_P_ ev_io *w)
1293{ 1605{
1294 int fd = w->fd; 1606 int fd = w->fd;
1295 1607
1296 if (ev_is_active (w)) 1608 if (expect_false (ev_is_active (w)))
1297 return; 1609 return;
1298 1610
1299 assert (("ev_io_start called with negative fd", fd >= 0)); 1611 assert (("ev_io_start called with negative fd", fd >= 0));
1300 1612
1301 ev_start (EV_A_ (W)w, 1); 1613 ev_start (EV_A_ (W)w, 1);
1302 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1614 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1303 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1615 wlist_add (&anfds[fd].head, (WL)w);
1304 1616
1305 fd_change (EV_A_ fd); 1617 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1618 w->events &= ~EV_IOFDSET;
1306} 1619}
1307 1620
1308void 1621void noinline
1309ev_io_stop (EV_P_ struct ev_io *w) 1622ev_io_stop (EV_P_ ev_io *w)
1310{ 1623{
1311 ev_clear_pending (EV_A_ (W)w); 1624 clear_pending (EV_A_ (W)w);
1312 if (!ev_is_active (w)) 1625 if (expect_false (!ev_is_active (w)))
1313 return; 1626 return;
1314 1627
1315 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1628 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1316 1629
1317 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1630 wlist_del (&anfds[w->fd].head, (WL)w);
1318 ev_stop (EV_A_ (W)w); 1631 ev_stop (EV_A_ (W)w);
1319 1632
1320 fd_change (EV_A_ w->fd); 1633 fd_change (EV_A_ w->fd, 1);
1321} 1634}
1322 1635
1323void 1636void noinline
1324ev_timer_start (EV_P_ struct ev_timer *w) 1637ev_timer_start (EV_P_ ev_timer *w)
1325{ 1638{
1326 if (ev_is_active (w)) 1639 if (expect_false (ev_is_active (w)))
1327 return; 1640 return;
1328 1641
1329 ((WT)w)->at += mn_now; 1642 ((WT)w)->at += mn_now;
1330 1643
1331 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1644 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1332 1645
1333 ev_start (EV_A_ (W)w, ++timercnt); 1646 ev_start (EV_A_ (W)w, ++timercnt);
1334 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1647 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1335 timers [timercnt - 1] = w; 1648 timers [timercnt - 1] = (WT)w;
1336 upheap ((WT *)timers, timercnt - 1); 1649 upheap (timers, timercnt - 1);
1337 1650
1338 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1651 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1339} 1652}
1340 1653
1341void 1654void noinline
1342ev_timer_stop (EV_P_ struct ev_timer *w) 1655ev_timer_stop (EV_P_ ev_timer *w)
1343{ 1656{
1344 ev_clear_pending (EV_A_ (W)w); 1657 clear_pending (EV_A_ (W)w);
1345 if (!ev_is_active (w)) 1658 if (expect_false (!ev_is_active (w)))
1346 return; 1659 return;
1347 1660
1348 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1661 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1349 1662
1350 if (((W)w)->active < timercnt--) 1663 {
1664 int active = ((W)w)->active;
1665
1666 if (expect_true (--active < --timercnt))
1351 { 1667 {
1352 timers [((W)w)->active - 1] = timers [timercnt]; 1668 timers [active] = timers [timercnt];
1353 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1669 adjustheap (timers, timercnt, active);
1354 } 1670 }
1671 }
1355 1672
1356 ((WT)w)->at -= mn_now; 1673 ((WT)w)->at -= mn_now;
1357 1674
1358 ev_stop (EV_A_ (W)w); 1675 ev_stop (EV_A_ (W)w);
1359} 1676}
1360 1677
1361void 1678void noinline
1362ev_timer_again (EV_P_ struct ev_timer *w) 1679ev_timer_again (EV_P_ ev_timer *w)
1363{ 1680{
1364 if (ev_is_active (w)) 1681 if (ev_is_active (w))
1365 { 1682 {
1366 if (w->repeat) 1683 if (w->repeat)
1367 { 1684 {
1368 ((WT)w)->at = mn_now + w->repeat; 1685 ((WT)w)->at = mn_now + w->repeat;
1369 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1686 adjustheap (timers, timercnt, ((W)w)->active - 1);
1370 } 1687 }
1371 else 1688 else
1372 ev_timer_stop (EV_A_ w); 1689 ev_timer_stop (EV_A_ w);
1373 } 1690 }
1374 else if (w->repeat) 1691 else if (w->repeat)
1692 {
1693 w->at = w->repeat;
1375 ev_timer_start (EV_A_ w); 1694 ev_timer_start (EV_A_ w);
1695 }
1376} 1696}
1377 1697
1378#if EV_PERIODICS 1698#if EV_PERIODIC_ENABLE
1379void 1699void noinline
1380ev_periodic_start (EV_P_ struct ev_periodic *w) 1700ev_periodic_start (EV_P_ ev_periodic *w)
1381{ 1701{
1382 if (ev_is_active (w)) 1702 if (expect_false (ev_is_active (w)))
1383 return; 1703 return;
1384 1704
1385 if (w->reschedule_cb) 1705 if (w->reschedule_cb)
1386 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1706 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1387 else if (w->interval) 1707 else if (w->interval)
1388 { 1708 {
1389 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1709 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1390 /* this formula differs from the one in periodic_reify because we do not always round up */ 1710 /* this formula differs from the one in periodic_reify because we do not always round up */
1391 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1711 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1392 } 1712 }
1713 else
1714 ((WT)w)->at = w->offset;
1393 1715
1394 ev_start (EV_A_ (W)w, ++periodiccnt); 1716 ev_start (EV_A_ (W)w, ++periodiccnt);
1395 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1717 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1396 periodics [periodiccnt - 1] = w; 1718 periodics [periodiccnt - 1] = (WT)w;
1397 upheap ((WT *)periodics, periodiccnt - 1); 1719 upheap (periodics, periodiccnt - 1);
1398 1720
1399 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1721 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1400} 1722}
1401 1723
1402void 1724void noinline
1403ev_periodic_stop (EV_P_ struct ev_periodic *w) 1725ev_periodic_stop (EV_P_ ev_periodic *w)
1404{ 1726{
1405 ev_clear_pending (EV_A_ (W)w); 1727 clear_pending (EV_A_ (W)w);
1406 if (!ev_is_active (w)) 1728 if (expect_false (!ev_is_active (w)))
1407 return; 1729 return;
1408 1730
1409 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1731 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1410 1732
1411 if (((W)w)->active < periodiccnt--) 1733 {
1734 int active = ((W)w)->active;
1735
1736 if (expect_true (--active < --periodiccnt))
1412 { 1737 {
1413 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1738 periodics [active] = periodics [periodiccnt];
1414 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1739 adjustheap (periodics, periodiccnt, active);
1415 } 1740 }
1741 }
1416 1742
1417 ev_stop (EV_A_ (W)w); 1743 ev_stop (EV_A_ (W)w);
1418} 1744}
1419 1745
1420void 1746void noinline
1421ev_periodic_again (EV_P_ struct ev_periodic *w) 1747ev_periodic_again (EV_P_ ev_periodic *w)
1422{ 1748{
1423 /* TODO: use adjustheap and recalculation */ 1749 /* TODO: use adjustheap and recalculation */
1424 ev_periodic_stop (EV_A_ w); 1750 ev_periodic_stop (EV_A_ w);
1425 ev_periodic_start (EV_A_ w); 1751 ev_periodic_start (EV_A_ w);
1426} 1752}
1427#endif 1753#endif
1428 1754
1429void
1430ev_idle_start (EV_P_ struct ev_idle *w)
1431{
1432 if (ev_is_active (w))
1433 return;
1434
1435 ev_start (EV_A_ (W)w, ++idlecnt);
1436 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1437 idles [idlecnt - 1] = w;
1438}
1439
1440void
1441ev_idle_stop (EV_P_ struct ev_idle *w)
1442{
1443 ev_clear_pending (EV_A_ (W)w);
1444 if (ev_is_active (w))
1445 return;
1446
1447 idles [((W)w)->active - 1] = idles [--idlecnt];
1448 ev_stop (EV_A_ (W)w);
1449}
1450
1451void
1452ev_prepare_start (EV_P_ struct ev_prepare *w)
1453{
1454 if (ev_is_active (w))
1455 return;
1456
1457 ev_start (EV_A_ (W)w, ++preparecnt);
1458 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1459 prepares [preparecnt - 1] = w;
1460}
1461
1462void
1463ev_prepare_stop (EV_P_ struct ev_prepare *w)
1464{
1465 ev_clear_pending (EV_A_ (W)w);
1466 if (ev_is_active (w))
1467 return;
1468
1469 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1470 ev_stop (EV_A_ (W)w);
1471}
1472
1473void
1474ev_check_start (EV_P_ struct ev_check *w)
1475{
1476 if (ev_is_active (w))
1477 return;
1478
1479 ev_start (EV_A_ (W)w, ++checkcnt);
1480 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1481 checks [checkcnt - 1] = w;
1482}
1483
1484void
1485ev_check_stop (EV_P_ struct ev_check *w)
1486{
1487 ev_clear_pending (EV_A_ (W)w);
1488 if (!ev_is_active (w))
1489 return;
1490
1491 checks [((W)w)->active - 1] = checks [--checkcnt];
1492 ev_stop (EV_A_ (W)w);
1493}
1494
1495#ifndef SA_RESTART 1755#ifndef SA_RESTART
1496# define SA_RESTART 0 1756# define SA_RESTART 0
1497#endif 1757#endif
1498 1758
1499void 1759void noinline
1500ev_signal_start (EV_P_ struct ev_signal *w) 1760ev_signal_start (EV_P_ ev_signal *w)
1501{ 1761{
1502#if EV_MULTIPLICITY 1762#if EV_MULTIPLICITY
1503 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1763 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1504#endif 1764#endif
1505 if (ev_is_active (w)) 1765 if (expect_false (ev_is_active (w)))
1506 return; 1766 return;
1507 1767
1508 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1768 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1509 1769
1770 {
1771#ifndef _WIN32
1772 sigset_t full, prev;
1773 sigfillset (&full);
1774 sigprocmask (SIG_SETMASK, &full, &prev);
1775#endif
1776
1777 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1778
1779#ifndef _WIN32
1780 sigprocmask (SIG_SETMASK, &prev, 0);
1781#endif
1782 }
1783
1510 ev_start (EV_A_ (W)w, 1); 1784 ev_start (EV_A_ (W)w, 1);
1511 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1512 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1785 wlist_add (&signals [w->signum - 1].head, (WL)w);
1513 1786
1514 if (!((WL)w)->next) 1787 if (!((WL)w)->next)
1515 { 1788 {
1516#if WIN32 1789#if _WIN32
1517 signal (w->signum, sighandler); 1790 signal (w->signum, sighandler);
1518#else 1791#else
1519 struct sigaction sa; 1792 struct sigaction sa;
1520 sa.sa_handler = sighandler; 1793 sa.sa_handler = sighandler;
1521 sigfillset (&sa.sa_mask); 1794 sigfillset (&sa.sa_mask);
… …
1523 sigaction (w->signum, &sa, 0); 1796 sigaction (w->signum, &sa, 0);
1524#endif 1797#endif
1525 } 1798 }
1526} 1799}
1527 1800
1528void 1801void noinline
1529ev_signal_stop (EV_P_ struct ev_signal *w) 1802ev_signal_stop (EV_P_ ev_signal *w)
1530{ 1803{
1531 ev_clear_pending (EV_A_ (W)w); 1804 clear_pending (EV_A_ (W)w);
1532 if (!ev_is_active (w)) 1805 if (expect_false (!ev_is_active (w)))
1533 return; 1806 return;
1534 1807
1535 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1808 wlist_del (&signals [w->signum - 1].head, (WL)w);
1536 ev_stop (EV_A_ (W)w); 1809 ev_stop (EV_A_ (W)w);
1537 1810
1538 if (!signals [w->signum - 1].head) 1811 if (!signals [w->signum - 1].head)
1539 signal (w->signum, SIG_DFL); 1812 signal (w->signum, SIG_DFL);
1540} 1813}
1541 1814
1542void 1815void
1543ev_child_start (EV_P_ struct ev_child *w) 1816ev_child_start (EV_P_ ev_child *w)
1544{ 1817{
1545#if EV_MULTIPLICITY 1818#if EV_MULTIPLICITY
1546 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1819 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1547#endif 1820#endif
1548 if (ev_is_active (w)) 1821 if (expect_false (ev_is_active (w)))
1549 return; 1822 return;
1550 1823
1551 ev_start (EV_A_ (W)w, 1); 1824 ev_start (EV_A_ (W)w, 1);
1552 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1825 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1553} 1826}
1554 1827
1555void 1828void
1556ev_child_stop (EV_P_ struct ev_child *w) 1829ev_child_stop (EV_P_ ev_child *w)
1557{ 1830{
1558 ev_clear_pending (EV_A_ (W)w); 1831 clear_pending (EV_A_ (W)w);
1559 if (!ev_is_active (w)) 1832 if (expect_false (!ev_is_active (w)))
1560 return; 1833 return;
1561 1834
1562 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1835 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1563 ev_stop (EV_A_ (W)w); 1836 ev_stop (EV_A_ (W)w);
1564} 1837}
1565 1838
1839#if EV_STAT_ENABLE
1840
1841# ifdef _WIN32
1842# undef lstat
1843# define lstat(a,b) _stati64 (a,b)
1844# endif
1845
1846#define DEF_STAT_INTERVAL 5.0074891
1847#define MIN_STAT_INTERVAL 0.1074891
1848
1849static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1850
1851#if EV_USE_INOTIFY
1852# define EV_INOTIFY_BUFSIZE 8192
1853
1854static void noinline
1855infy_add (EV_P_ ev_stat *w)
1856{
1857 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);
1858
1859 if (w->wd < 0)
1860 {
1861 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1862
1863 /* monitor some parent directory for speedup hints */
1864 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1865 {
1866 char path [4096];
1867 strcpy (path, w->path);
1868
1869 do
1870 {
1871 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1872 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1873
1874 char *pend = strrchr (path, '/');
1875
1876 if (!pend)
1877 break; /* whoops, no '/', complain to your admin */
1878
1879 *pend = 0;
1880 w->wd = inotify_add_watch (fs_fd, path, mask);
1881 }
1882 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1883 }
1884 }
1885 else
1886 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1887
1888 if (w->wd >= 0)
1889 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1890}
1891
1892static void noinline
1893infy_del (EV_P_ ev_stat *w)
1894{
1895 int slot;
1896 int wd = w->wd;
1897
1898 if (wd < 0)
1899 return;
1900
1901 w->wd = -2;
1902 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1903 wlist_del (&fs_hash [slot].head, (WL)w);
1904
1905 /* remove this watcher, if others are watching it, they will rearm */
1906 inotify_rm_watch (fs_fd, wd);
1907}
1908
1909static void noinline
1910infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1911{
1912 if (slot < 0)
1913 /* overflow, need to check for all hahs slots */
1914 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1915 infy_wd (EV_A_ slot, wd, ev);
1916 else
1917 {
1918 WL w_;
1919
1920 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1921 {
1922 ev_stat *w = (ev_stat *)w_;
1923 w_ = w_->next; /* lets us remove this watcher and all before it */
1924
1925 if (w->wd == wd || wd == -1)
1926 {
1927 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1928 {
1929 w->wd = -1;
1930 infy_add (EV_A_ w); /* re-add, no matter what */
1931 }
1932
1933 stat_timer_cb (EV_A_ &w->timer, 0);
1934 }
1935 }
1936 }
1937}
1938
1939static void
1940infy_cb (EV_P_ ev_io *w, int revents)
1941{
1942 char buf [EV_INOTIFY_BUFSIZE];
1943 struct inotify_event *ev = (struct inotify_event *)buf;
1944 int ofs;
1945 int len = read (fs_fd, buf, sizeof (buf));
1946
1947 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1948 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1949}
1950
1951void inline_size
1952infy_init (EV_P)
1953{
1954 if (fs_fd != -2)
1955 return;
1956
1957 fs_fd = inotify_init ();
1958
1959 if (fs_fd >= 0)
1960 {
1961 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1962 ev_set_priority (&fs_w, EV_MAXPRI);
1963 ev_io_start (EV_A_ &fs_w);
1964 }
1965}
1966
1967void inline_size
1968infy_fork (EV_P)
1969{
1970 int slot;
1971
1972 if (fs_fd < 0)
1973 return;
1974
1975 close (fs_fd);
1976 fs_fd = inotify_init ();
1977
1978 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1979 {
1980 WL w_ = fs_hash [slot].head;
1981 fs_hash [slot].head = 0;
1982
1983 while (w_)
1984 {
1985 ev_stat *w = (ev_stat *)w_;
1986 w_ = w_->next; /* lets us add this watcher */
1987
1988 w->wd = -1;
1989
1990 if (fs_fd >= 0)
1991 infy_add (EV_A_ w); /* re-add, no matter what */
1992 else
1993 ev_timer_start (EV_A_ &w->timer);
1994 }
1995
1996 }
1997}
1998
1999#endif
2000
2001void
2002ev_stat_stat (EV_P_ ev_stat *w)
2003{
2004 if (lstat (w->path, &w->attr) < 0)
2005 w->attr.st_nlink = 0;
2006 else if (!w->attr.st_nlink)
2007 w->attr.st_nlink = 1;
2008}
2009
2010static void noinline
2011stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2012{
2013 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2014
2015 /* we copy this here each the time so that */
2016 /* prev has the old value when the callback gets invoked */
2017 w->prev = w->attr;
2018 ev_stat_stat (EV_A_ w);
2019
2020 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2021 if (
2022 w->prev.st_dev != w->attr.st_dev
2023 || w->prev.st_ino != w->attr.st_ino
2024 || w->prev.st_mode != w->attr.st_mode
2025 || w->prev.st_nlink != w->attr.st_nlink
2026 || w->prev.st_uid != w->attr.st_uid
2027 || w->prev.st_gid != w->attr.st_gid
2028 || w->prev.st_rdev != w->attr.st_rdev
2029 || w->prev.st_size != w->attr.st_size
2030 || w->prev.st_atime != w->attr.st_atime
2031 || w->prev.st_mtime != w->attr.st_mtime
2032 || w->prev.st_ctime != w->attr.st_ctime
2033 ) {
2034 #if EV_USE_INOTIFY
2035 infy_del (EV_A_ w);
2036 infy_add (EV_A_ w);
2037 ev_stat_stat (EV_A_ w); /* avoid race... */
2038 #endif
2039
2040 ev_feed_event (EV_A_ w, EV_STAT);
2041 }
2042}
2043
2044void
2045ev_stat_start (EV_P_ ev_stat *w)
2046{
2047 if (expect_false (ev_is_active (w)))
2048 return;
2049
2050 /* since we use memcmp, we need to clear any padding data etc. */
2051 memset (&w->prev, 0, sizeof (ev_statdata));
2052 memset (&w->attr, 0, sizeof (ev_statdata));
2053
2054 ev_stat_stat (EV_A_ w);
2055
2056 if (w->interval < MIN_STAT_INTERVAL)
2057 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2058
2059 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2060 ev_set_priority (&w->timer, ev_priority (w));
2061
2062#if EV_USE_INOTIFY
2063 infy_init (EV_A);
2064
2065 if (fs_fd >= 0)
2066 infy_add (EV_A_ w);
2067 else
2068#endif
2069 ev_timer_start (EV_A_ &w->timer);
2070
2071 ev_start (EV_A_ (W)w, 1);
2072}
2073
2074void
2075ev_stat_stop (EV_P_ ev_stat *w)
2076{
2077 clear_pending (EV_A_ (W)w);
2078 if (expect_false (!ev_is_active (w)))
2079 return;
2080
2081#if EV_USE_INOTIFY
2082 infy_del (EV_A_ w);
2083#endif
2084 ev_timer_stop (EV_A_ &w->timer);
2085
2086 ev_stop (EV_A_ (W)w);
2087}
2088#endif
2089
2090#if EV_IDLE_ENABLE
2091void
2092ev_idle_start (EV_P_ ev_idle *w)
2093{
2094 if (expect_false (ev_is_active (w)))
2095 return;
2096
2097 pri_adjust (EV_A_ (W)w);
2098
2099 {
2100 int active = ++idlecnt [ABSPRI (w)];
2101
2102 ++idleall;
2103 ev_start (EV_A_ (W)w, active);
2104
2105 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2106 idles [ABSPRI (w)][active - 1] = w;
2107 }
2108}
2109
2110void
2111ev_idle_stop (EV_P_ ev_idle *w)
2112{
2113 clear_pending (EV_A_ (W)w);
2114 if (expect_false (!ev_is_active (w)))
2115 return;
2116
2117 {
2118 int active = ((W)w)->active;
2119
2120 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2121 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2122
2123 ev_stop (EV_A_ (W)w);
2124 --idleall;
2125 }
2126}
2127#endif
2128
2129void
2130ev_prepare_start (EV_P_ ev_prepare *w)
2131{
2132 if (expect_false (ev_is_active (w)))
2133 return;
2134
2135 ev_start (EV_A_ (W)w, ++preparecnt);
2136 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2137 prepares [preparecnt - 1] = w;
2138}
2139
2140void
2141ev_prepare_stop (EV_P_ ev_prepare *w)
2142{
2143 clear_pending (EV_A_ (W)w);
2144 if (expect_false (!ev_is_active (w)))
2145 return;
2146
2147 {
2148 int active = ((W)w)->active;
2149 prepares [active - 1] = prepares [--preparecnt];
2150 ((W)prepares [active - 1])->active = active;
2151 }
2152
2153 ev_stop (EV_A_ (W)w);
2154}
2155
2156void
2157ev_check_start (EV_P_ ev_check *w)
2158{
2159 if (expect_false (ev_is_active (w)))
2160 return;
2161
2162 ev_start (EV_A_ (W)w, ++checkcnt);
2163 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2164 checks [checkcnt - 1] = w;
2165}
2166
2167void
2168ev_check_stop (EV_P_ ev_check *w)
2169{
2170 clear_pending (EV_A_ (W)w);
2171 if (expect_false (!ev_is_active (w)))
2172 return;
2173
2174 {
2175 int active = ((W)w)->active;
2176 checks [active - 1] = checks [--checkcnt];
2177 ((W)checks [active - 1])->active = active;
2178 }
2179
2180 ev_stop (EV_A_ (W)w);
2181}
2182
2183#if EV_EMBED_ENABLE
2184void noinline
2185ev_embed_sweep (EV_P_ ev_embed *w)
2186{
2187 ev_loop (w->loop, EVLOOP_NONBLOCK);
2188}
2189
2190static void
2191embed_cb (EV_P_ ev_io *io, int revents)
2192{
2193 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2194
2195 if (ev_cb (w))
2196 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2197 else
2198 ev_embed_sweep (loop, w);
2199}
2200
2201void
2202ev_embed_start (EV_P_ ev_embed *w)
2203{
2204 if (expect_false (ev_is_active (w)))
2205 return;
2206
2207 {
2208 struct ev_loop *loop = w->loop;
2209 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2210 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2211 }
2212
2213 ev_set_priority (&w->io, ev_priority (w));
2214 ev_io_start (EV_A_ &w->io);
2215
2216 ev_start (EV_A_ (W)w, 1);
2217}
2218
2219void
2220ev_embed_stop (EV_P_ ev_embed *w)
2221{
2222 clear_pending (EV_A_ (W)w);
2223 if (expect_false (!ev_is_active (w)))
2224 return;
2225
2226 ev_io_stop (EV_A_ &w->io);
2227
2228 ev_stop (EV_A_ (W)w);
2229}
2230#endif
2231
2232#if EV_FORK_ENABLE
2233void
2234ev_fork_start (EV_P_ ev_fork *w)
2235{
2236 if (expect_false (ev_is_active (w)))
2237 return;
2238
2239 ev_start (EV_A_ (W)w, ++forkcnt);
2240 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2241 forks [forkcnt - 1] = w;
2242}
2243
2244void
2245ev_fork_stop (EV_P_ ev_fork *w)
2246{
2247 clear_pending (EV_A_ (W)w);
2248 if (expect_false (!ev_is_active (w)))
2249 return;
2250
2251 {
2252 int active = ((W)w)->active;
2253 forks [active - 1] = forks [--forkcnt];
2254 ((W)forks [active - 1])->active = active;
2255 }
2256
2257 ev_stop (EV_A_ (W)w);
2258}
2259#endif
2260
1566/*****************************************************************************/ 2261/*****************************************************************************/
1567 2262
1568struct ev_once 2263struct ev_once
1569{ 2264{
1570 struct ev_io io; 2265 ev_io io;
1571 struct ev_timer to; 2266 ev_timer to;
1572 void (*cb)(int revents, void *arg); 2267 void (*cb)(int revents, void *arg);
1573 void *arg; 2268 void *arg;
1574}; 2269};
1575 2270
1576static void 2271static void
… …
1585 2280
1586 cb (revents, arg); 2281 cb (revents, arg);
1587} 2282}
1588 2283
1589static void 2284static void
1590once_cb_io (EV_P_ struct ev_io *w, int revents) 2285once_cb_io (EV_P_ ev_io *w, int revents)
1591{ 2286{
1592 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2287 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1593} 2288}
1594 2289
1595static void 2290static void
1596once_cb_to (EV_P_ struct ev_timer *w, int revents) 2291once_cb_to (EV_P_ ev_timer *w, int revents)
1597{ 2292{
1598 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2293 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1599} 2294}
1600 2295
1601void 2296void
1602ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2297ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1603{ 2298{
1604 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2299 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1605 2300
1606 if (!once) 2301 if (expect_false (!once))
2302 {
1607 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2303 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1608 else 2304 return;
1609 { 2305 }
2306
1610 once->cb = cb; 2307 once->cb = cb;
1611 once->arg = arg; 2308 once->arg = arg;
1612 2309
1613 ev_init (&once->io, once_cb_io); 2310 ev_init (&once->io, once_cb_io);
1614 if (fd >= 0) 2311 if (fd >= 0)
1615 { 2312 {
1616 ev_io_set (&once->io, fd, events); 2313 ev_io_set (&once->io, fd, events);
1617 ev_io_start (EV_A_ &once->io); 2314 ev_io_start (EV_A_ &once->io);
1618 } 2315 }
1619 2316
1620 ev_init (&once->to, once_cb_to); 2317 ev_init (&once->to, once_cb_to);
1621 if (timeout >= 0.) 2318 if (timeout >= 0.)
1622 { 2319 {
1623 ev_timer_set (&once->to, timeout, 0.); 2320 ev_timer_set (&once->to, timeout, 0.);
1624 ev_timer_start (EV_A_ &once->to); 2321 ev_timer_start (EV_A_ &once->to);
1625 }
1626 } 2322 }
1627} 2323}
1628 2324
1629#ifdef __cplusplus 2325#ifdef __cplusplus
1630} 2326}

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