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Comparing libev/ev.c (file contents):
Revision 1.100 by root, Sun Nov 11 04:02:54 2007 UTC vs.
Revision 1.186 by root, Sat Dec 15 23:14:38 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 array_free (prepare, EMPTY);
815 array_free_microshit (prepare); 1052 array_free (check, EMPTY);
816 array_free_microshit (check); 1053 array_free (fork, EMPTY);
817 1054
818 method = 0; 1055 backend = 0;
819} 1056}
820 1057
821static void 1058void inline_size infy_fork (EV_P);
1059
1060void inline_size
822loop_fork (EV_P) 1061loop_fork (EV_P)
823{ 1062{
1063#if EV_USE_PORT
1064 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1065#endif
1066#if EV_USE_KQUEUE
1067 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1068#endif
824#if EV_USE_EPOLL 1069#if EV_USE_EPOLL
825 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1070 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
826#endif 1071#endif
827#if EV_USE_KQUEUE 1072#if EV_USE_INOTIFY
828 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1073 infy_fork (EV_A);
829#endif 1074#endif
830 1075
831 if (ev_is_active (&sigev)) 1076 if (ev_is_active (&sigev))
832 { 1077 {
833 /* default loop */ 1078 /* default loop */
… …
846 postfork = 0; 1091 postfork = 0;
847} 1092}
848 1093
849#if EV_MULTIPLICITY 1094#if EV_MULTIPLICITY
850struct ev_loop * 1095struct ev_loop *
851ev_loop_new (int methods) 1096ev_loop_new (unsigned int flags)
852{ 1097{
853 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1098 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
854 1099
855 memset (loop, 0, sizeof (struct ev_loop)); 1100 memset (loop, 0, sizeof (struct ev_loop));
856 1101
857 loop_init (EV_A_ methods); 1102 loop_init (EV_A_ flags);
858 1103
859 if (ev_method (EV_A)) 1104 if (ev_backend (EV_A))
860 return loop; 1105 return loop;
861 1106
862 return 0; 1107 return 0;
863} 1108}
864 1109
… …
877 1122
878#endif 1123#endif
879 1124
880#if EV_MULTIPLICITY 1125#if EV_MULTIPLICITY
881struct ev_loop * 1126struct ev_loop *
1127ev_default_loop_init (unsigned int flags)
882#else 1128#else
883int 1129int
1130ev_default_loop (unsigned int flags)
884#endif 1131#endif
885ev_default_loop (int methods)
886{ 1132{
887 if (sigpipe [0] == sigpipe [1]) 1133 if (sigpipe [0] == sigpipe [1])
888 if (pipe (sigpipe)) 1134 if (pipe (sigpipe))
889 return 0; 1135 return 0;
890 1136
891 if (!default_loop) 1137 if (!ev_default_loop_ptr)
892 { 1138 {
893#if EV_MULTIPLICITY 1139#if EV_MULTIPLICITY
894 struct ev_loop *loop = default_loop = &default_loop_struct; 1140 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
895#else 1141#else
896 default_loop = 1; 1142 ev_default_loop_ptr = 1;
897#endif 1143#endif
898 1144
899 loop_init (EV_A_ methods); 1145 loop_init (EV_A_ flags);
900 1146
901 if (ev_method (EV_A)) 1147 if (ev_backend (EV_A))
902 { 1148 {
903 siginit (EV_A); 1149 siginit (EV_A);
904 1150
905#ifndef WIN32 1151#ifndef _WIN32
906 ev_signal_init (&childev, childcb, SIGCHLD); 1152 ev_signal_init (&childev, childcb, SIGCHLD);
907 ev_set_priority (&childev, EV_MAXPRI); 1153 ev_set_priority (&childev, EV_MAXPRI);
908 ev_signal_start (EV_A_ &childev); 1154 ev_signal_start (EV_A_ &childev);
909 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1155 ev_unref (EV_A); /* child watcher should not keep loop alive */
910#endif 1156#endif
911 } 1157 }
912 else 1158 else
913 default_loop = 0; 1159 ev_default_loop_ptr = 0;
914 } 1160 }
915 1161
916 return default_loop; 1162 return ev_default_loop_ptr;
917} 1163}
918 1164
919void 1165void
920ev_default_destroy (void) 1166ev_default_destroy (void)
921{ 1167{
922#if EV_MULTIPLICITY 1168#if EV_MULTIPLICITY
923 struct ev_loop *loop = default_loop; 1169 struct ev_loop *loop = ev_default_loop_ptr;
924#endif 1170#endif
925 1171
926#ifndef WIN32 1172#ifndef _WIN32
927 ev_ref (EV_A); /* child watcher */ 1173 ev_ref (EV_A); /* child watcher */
928 ev_signal_stop (EV_A_ &childev); 1174 ev_signal_stop (EV_A_ &childev);
929#endif 1175#endif
930 1176
931 ev_ref (EV_A); /* signal watcher */ 1177 ev_ref (EV_A); /* signal watcher */
… …
939 1185
940void 1186void
941ev_default_fork (void) 1187ev_default_fork (void)
942{ 1188{
943#if EV_MULTIPLICITY 1189#if EV_MULTIPLICITY
944 struct ev_loop *loop = default_loop; 1190 struct ev_loop *loop = ev_default_loop_ptr;
945#endif 1191#endif
946 1192
947 if (method) 1193 if (backend)
948 postfork = 1; 1194 postfork = 1;
949} 1195}
950 1196
951/*****************************************************************************/ 1197/*****************************************************************************/
952 1198
953static int 1199void
954any_pending (EV_P) 1200ev_invoke (EV_P_ void *w, int revents)
955{ 1201{
956 int pri; 1202 EV_CB_INVOKE ((W)w, revents);
957
958 for (pri = NUMPRI; pri--; )
959 if (pendingcnt [pri])
960 return 1;
961
962 return 0;
963} 1203}
964 1204
965static void 1205void inline_speed
966call_pending (EV_P) 1206call_pending (EV_P)
967{ 1207{
968 int pri; 1208 int pri;
969 1209
970 for (pri = NUMPRI; pri--; ) 1210 for (pri = NUMPRI; pri--; )
971 while (pendingcnt [pri]) 1211 while (pendingcnt [pri])
972 { 1212 {
973 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1213 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
974 1214
975 if (p->w) 1215 if (expect_true (p->w))
976 { 1216 {
1217 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1218
977 p->w->pending = 0; 1219 p->w->pending = 0;
978 EV_CB_INVOKE (p->w, p->events); 1220 EV_CB_INVOKE (p->w, p->events);
979 } 1221 }
980 } 1222 }
981} 1223}
982 1224
983static void 1225void inline_size
984timers_reify (EV_P) 1226timers_reify (EV_P)
985{ 1227{
986 while (timercnt && ((WT)timers [0])->at <= mn_now) 1228 while (timercnt && ((WT)timers [0])->at <= mn_now)
987 { 1229 {
988 struct ev_timer *w = timers [0]; 1230 ev_timer *w = (ev_timer *)timers [0];
989 1231
990 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1232 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
991 1233
992 /* first reschedule or stop timer */ 1234 /* first reschedule or stop timer */
993 if (w->repeat) 1235 if (w->repeat)
994 { 1236 {
995 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1237 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
996 1238
997 ((WT)w)->at += w->repeat; 1239 ((WT)w)->at += w->repeat;
998 if (((WT)w)->at < mn_now) 1240 if (((WT)w)->at < mn_now)
999 ((WT)w)->at = mn_now; 1241 ((WT)w)->at = mn_now;
1000 1242
1001 downheap ((WT *)timers, timercnt, 0); 1243 downheap (timers, timercnt, 0);
1002 } 1244 }
1003 else 1245 else
1004 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1246 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1005 1247
1006 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1248 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1007 } 1249 }
1008} 1250}
1009 1251
1010#if EV_PERIODICS 1252#if EV_PERIODIC_ENABLE
1011static void 1253void inline_size
1012periodics_reify (EV_P) 1254periodics_reify (EV_P)
1013{ 1255{
1014 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1256 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1015 { 1257 {
1016 struct ev_periodic *w = periodics [0]; 1258 ev_periodic *w = (ev_periodic *)periodics [0];
1017 1259
1018 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1260 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1019 1261
1020 /* first reschedule or stop timer */ 1262 /* first reschedule or stop timer */
1021 if (w->reschedule_cb) 1263 if (w->reschedule_cb)
1022 { 1264 {
1023 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1265 ((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)); 1266 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1026 downheap ((WT *)periodics, periodiccnt, 0); 1267 downheap (periodics, periodiccnt, 0);
1027 } 1268 }
1028 else if (w->interval) 1269 else if (w->interval)
1029 { 1270 {
1030 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1271 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1272 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)); 1273 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); 1274 downheap (periodics, periodiccnt, 0);
1033 } 1275 }
1034 else 1276 else
1035 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1277 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1036 1278
1037 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1279 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1038 } 1280 }
1039} 1281}
1040 1282
1041static void 1283static void noinline
1042periodics_reschedule (EV_P) 1284periodics_reschedule (EV_P)
1043{ 1285{
1044 int i; 1286 int i;
1045 1287
1046 /* adjust periodics after time jump */ 1288 /* adjust periodics after time jump */
1047 for (i = 0; i < periodiccnt; ++i) 1289 for (i = 0; i < periodiccnt; ++i)
1048 { 1290 {
1049 struct ev_periodic *w = periodics [i]; 1291 ev_periodic *w = (ev_periodic *)periodics [i];
1050 1292
1051 if (w->reschedule_cb) 1293 if (w->reschedule_cb)
1052 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1294 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1053 else if (w->interval) 1295 else if (w->interval)
1054 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1296 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1055 } 1297 }
1056 1298
1057 /* now rebuild the heap */ 1299 /* now rebuild the heap */
1058 for (i = periodiccnt >> 1; i--; ) 1300 for (i = periodiccnt >> 1; i--; )
1059 downheap ((WT *)periodics, periodiccnt, i); 1301 downheap (periodics, periodiccnt, i);
1060} 1302}
1061#endif 1303#endif
1062 1304
1063inline int 1305#if EV_IDLE_ENABLE
1064time_update_monotonic (EV_P) 1306void inline_size
1307idle_reify (EV_P)
1065{ 1308{
1309 if (expect_false (idleall))
1310 {
1311 int pri;
1312
1313 for (pri = NUMPRI; pri--; )
1314 {
1315 if (pendingcnt [pri])
1316 break;
1317
1318 if (idlecnt [pri])
1319 {
1320 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1321 break;
1322 }
1323 }
1324 }
1325}
1326#endif
1327
1328void inline_speed
1329time_update (EV_P_ ev_tstamp max_block)
1330{
1331 int i;
1332
1333#if EV_USE_MONOTONIC
1334 if (expect_true (have_monotonic))
1335 {
1336 ev_tstamp odiff = rtmn_diff;
1337
1066 mn_now = get_clock (); 1338 mn_now = get_clock ();
1067 1339
1340 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1341 /* interpolate in the meantime */
1068 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1342 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1069 { 1343 {
1070 ev_rt_now = rtmn_diff + mn_now; 1344 ev_rt_now = rtmn_diff + mn_now;
1071 return 0; 1345 return;
1072 } 1346 }
1073 else 1347
1074 {
1075 now_floor = mn_now; 1348 now_floor = mn_now;
1076 ev_rt_now = ev_time (); 1349 ev_rt_now = ev_time ();
1077 return 1;
1078 }
1079}
1080 1350
1081static void 1351 /* loop a few times, before making important decisions.
1082time_update (EV_P) 1352 * on the choice of "4": one iteration isn't enough,
1083{ 1353 * in case we get preempted during the calls to
1084 int i; 1354 * ev_time and get_clock. a second call is almost guaranteed
1085 1355 * to succeed in that case, though. and looping a few more times
1086#if EV_USE_MONOTONIC 1356 * doesn't hurt either as we only do this on time-jumps or
1087 if (expect_true (have_monotonic)) 1357 * in the unlikely event of having been preempted here.
1088 { 1358 */
1089 if (time_update_monotonic (EV_A)) 1359 for (i = 4; --i; )
1090 { 1360 {
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; 1361 rtmn_diff = ev_rt_now - mn_now;
1096 1362
1097 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1363 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1098 return; /* all is well */ 1364 return; /* all is well */
1099 1365
1100 ev_rt_now = ev_time (); 1366 ev_rt_now = ev_time ();
1101 mn_now = get_clock (); 1367 mn_now = get_clock ();
1102 now_floor = mn_now; 1368 now_floor = mn_now;
1103 } 1369 }
1104 1370
1105# if EV_PERIODICS 1371# if EV_PERIODIC_ENABLE
1372 periodics_reschedule (EV_A);
1373# endif
1374 /* no timer adjustment, as the monotonic clock doesn't jump */
1375 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1376 }
1377 else
1378#endif
1379 {
1380 ev_rt_now = ev_time ();
1381
1382 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1383 {
1384#if EV_PERIODIC_ENABLE
1106 periodics_reschedule (EV_A); 1385 periodics_reschedule (EV_A);
1107# endif 1386#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 */ 1387 /* adjust timers. this is easy, as the offset is the same for all of them */
1124 for (i = 0; i < timercnt; ++i) 1388 for (i = 0; i < timercnt; ++i)
1125 ((WT)timers [i])->at += ev_rt_now - mn_now; 1389 ((WT)timers [i])->at += ev_rt_now - mn_now;
1126 } 1390 }
1127 1391
1128 mn_now = ev_rt_now; 1392 mn_now = ev_rt_now;
… …
1144static int loop_done; 1408static int loop_done;
1145 1409
1146void 1410void
1147ev_loop (EV_P_ int flags) 1411ev_loop (EV_P_ int flags)
1148{ 1412{
1149 double block;
1150 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1413 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1414 ? EVUNLOOP_ONE
1415 : EVUNLOOP_CANCEL;
1416
1417 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1151 1418
1152 do 1419 do
1153 { 1420 {
1421#ifndef _WIN32
1422 if (expect_false (curpid)) /* penalise the forking check even more */
1423 if (expect_false (getpid () != curpid))
1424 {
1425 curpid = getpid ();
1426 postfork = 1;
1427 }
1428#endif
1429
1430#if EV_FORK_ENABLE
1431 /* we might have forked, so queue fork handlers */
1432 if (expect_false (postfork))
1433 if (forkcnt)
1434 {
1435 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1436 call_pending (EV_A);
1437 }
1438#endif
1439
1154 /* queue check watchers (and execute them) */ 1440 /* queue prepare watchers (and execute them) */
1155 if (expect_false (preparecnt)) 1441 if (expect_false (preparecnt))
1156 { 1442 {
1157 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1443 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1158 call_pending (EV_A); 1444 call_pending (EV_A);
1159 } 1445 }
1160 1446
1447 if (expect_false (!activecnt))
1448 break;
1449
1161 /* we might have forked, so reify kernel state if necessary */ 1450 /* we might have forked, so reify kernel state if necessary */
1162 if (expect_false (postfork)) 1451 if (expect_false (postfork))
1163 loop_fork (EV_A); 1452 loop_fork (EV_A);
1164 1453
1165 /* update fd-related kernel structures */ 1454 /* update fd-related kernel structures */
1166 fd_reify (EV_A); 1455 fd_reify (EV_A);
1167 1456
1168 /* calculate blocking time */ 1457 /* calculate blocking time */
1458 {
1459 ev_tstamp block;
1169 1460
1170 /* we only need this for !monotonic clock or timers, but as we basically 1461 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1171 always have timers, we just calculate it always */ 1462 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 1463 else
1176#endif
1177 { 1464 {
1178 ev_rt_now = ev_time (); 1465 /* update time to cancel out callback processing overhead */
1179 mn_now = ev_rt_now; 1466 time_update (EV_A_ 1e100);
1180 }
1181 1467
1182 if (flags & EVLOOP_NONBLOCK || idlecnt)
1183 block = 0.;
1184 else
1185 {
1186 block = MAX_BLOCKTIME; 1468 block = MAX_BLOCKTIME;
1187 1469
1188 if (timercnt) 1470 if (timercnt)
1189 { 1471 {
1190 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1472 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1191 if (block > to) block = to; 1473 if (block > to) block = to;
1192 } 1474 }
1193 1475
1194#if EV_PERIODICS 1476#if EV_PERIODIC_ENABLE
1195 if (periodiccnt) 1477 if (periodiccnt)
1196 { 1478 {
1197 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1479 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1198 if (block > to) block = to; 1480 if (block > to) block = to;
1199 } 1481 }
1200#endif 1482#endif
1201 1483
1202 if (block < 0.) block = 0.; 1484 if (expect_false (block < 0.)) block = 0.;
1203 } 1485 }
1204 1486
1487 ++loop_count;
1205 method_poll (EV_A_ block); 1488 backend_poll (EV_A_ block);
1206 1489
1207 /* update ev_rt_now, do magic */ 1490 /* update ev_rt_now, do magic */
1208 time_update (EV_A); 1491 time_update (EV_A_ block);
1492 }
1209 1493
1210 /* queue pending timers and reschedule them */ 1494 /* queue pending timers and reschedule them */
1211 timers_reify (EV_A); /* relative timers called last */ 1495 timers_reify (EV_A); /* relative timers called last */
1212#if EV_PERIODICS 1496#if EV_PERIODIC_ENABLE
1213 periodics_reify (EV_A); /* absolute timers called first */ 1497 periodics_reify (EV_A); /* absolute timers called first */
1214#endif 1498#endif
1215 1499
1500#if EV_IDLE_ENABLE
1216 /* queue idle watchers unless io or timers are pending */ 1501 /* queue idle watchers unless other events are pending */
1217 if (idlecnt && !any_pending (EV_A)) 1502 idle_reify (EV_A);
1218 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1503#endif
1219 1504
1220 /* queue check watchers, to be executed first */ 1505 /* queue check watchers, to be executed first */
1221 if (checkcnt) 1506 if (expect_false (checkcnt))
1222 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1507 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1223 1508
1224 call_pending (EV_A); 1509 call_pending (EV_A);
1510
1225 } 1511 }
1226 while (activecnt && !loop_done); 1512 while (expect_true (activecnt && !loop_done));
1227 1513
1228 if (loop_done != 2) 1514 if (loop_done == EVUNLOOP_ONE)
1229 loop_done = 0; 1515 loop_done = EVUNLOOP_CANCEL;
1230} 1516}
1231 1517
1232void 1518void
1233ev_unloop (EV_P_ int how) 1519ev_unloop (EV_P_ int how)
1234{ 1520{
1235 loop_done = how; 1521 loop_done = how;
1236} 1522}
1237 1523
1238/*****************************************************************************/ 1524/*****************************************************************************/
1239 1525
1240inline void 1526void inline_size
1241wlist_add (WL *head, WL elem) 1527wlist_add (WL *head, WL elem)
1242{ 1528{
1243 elem->next = *head; 1529 elem->next = *head;
1244 *head = elem; 1530 *head = elem;
1245} 1531}
1246 1532
1247inline void 1533void inline_size
1248wlist_del (WL *head, WL elem) 1534wlist_del (WL *head, WL elem)
1249{ 1535{
1250 while (*head) 1536 while (*head)
1251 { 1537 {
1252 if (*head == elem) 1538 if (*head == elem)
… …
1257 1543
1258 head = &(*head)->next; 1544 head = &(*head)->next;
1259 } 1545 }
1260} 1546}
1261 1547
1262inline void 1548void inline_speed
1263ev_clear_pending (EV_P_ W w) 1549clear_pending (EV_P_ W w)
1264{ 1550{
1265 if (w->pending) 1551 if (w->pending)
1266 { 1552 {
1267 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1553 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1268 w->pending = 0; 1554 w->pending = 0;
1269 } 1555 }
1270} 1556}
1271 1557
1272inline void 1558int
1559ev_clear_pending (EV_P_ void *w)
1560{
1561 W w_ = (W)w;
1562 int pending = w_->pending;
1563
1564 if (expect_true (pending))
1565 {
1566 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1567 w_->pending = 0;
1568 p->w = 0;
1569 return p->events;
1570 }
1571 else
1572 return 0;
1573}
1574
1575void inline_size
1576pri_adjust (EV_P_ W w)
1577{
1578 int pri = w->priority;
1579 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1580 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1581 w->priority = pri;
1582}
1583
1584void inline_speed
1273ev_start (EV_P_ W w, int active) 1585ev_start (EV_P_ W w, int active)
1274{ 1586{
1275 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1587 pri_adjust (EV_A_ w);
1276 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1277
1278 w->active = active; 1588 w->active = active;
1279 ev_ref (EV_A); 1589 ev_ref (EV_A);
1280} 1590}
1281 1591
1282inline void 1592void inline_size
1283ev_stop (EV_P_ W w) 1593ev_stop (EV_P_ W w)
1284{ 1594{
1285 ev_unref (EV_A); 1595 ev_unref (EV_A);
1286 w->active = 0; 1596 w->active = 0;
1287} 1597}
1288 1598
1289/*****************************************************************************/ 1599/*****************************************************************************/
1290 1600
1291void 1601void noinline
1292ev_io_start (EV_P_ struct ev_io *w) 1602ev_io_start (EV_P_ ev_io *w)
1293{ 1603{
1294 int fd = w->fd; 1604 int fd = w->fd;
1295 1605
1296 if (ev_is_active (w)) 1606 if (expect_false (ev_is_active (w)))
1297 return; 1607 return;
1298 1608
1299 assert (("ev_io_start called with negative fd", fd >= 0)); 1609 assert (("ev_io_start called with negative fd", fd >= 0));
1300 1610
1301 ev_start (EV_A_ (W)w, 1); 1611 ev_start (EV_A_ (W)w, 1);
1302 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1612 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1303 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1613 wlist_add (&anfds[fd].head, (WL)w);
1304 1614
1305 fd_change (EV_A_ fd); 1615 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1616 w->events &= ~EV_IOFDSET;
1306} 1617}
1307 1618
1308void 1619void noinline
1309ev_io_stop (EV_P_ struct ev_io *w) 1620ev_io_stop (EV_P_ ev_io *w)
1310{ 1621{
1311 ev_clear_pending (EV_A_ (W)w); 1622 clear_pending (EV_A_ (W)w);
1312 if (!ev_is_active (w)) 1623 if (expect_false (!ev_is_active (w)))
1313 return; 1624 return;
1314 1625
1315 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1626 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1316 1627
1317 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1628 wlist_del (&anfds[w->fd].head, (WL)w);
1318 ev_stop (EV_A_ (W)w); 1629 ev_stop (EV_A_ (W)w);
1319 1630
1320 fd_change (EV_A_ w->fd); 1631 fd_change (EV_A_ w->fd, 1);
1321} 1632}
1322 1633
1323void 1634void noinline
1324ev_timer_start (EV_P_ struct ev_timer *w) 1635ev_timer_start (EV_P_ ev_timer *w)
1325{ 1636{
1326 if (ev_is_active (w)) 1637 if (expect_false (ev_is_active (w)))
1327 return; 1638 return;
1328 1639
1329 ((WT)w)->at += mn_now; 1640 ((WT)w)->at += mn_now;
1330 1641
1331 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1642 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1332 1643
1333 ev_start (EV_A_ (W)w, ++timercnt); 1644 ev_start (EV_A_ (W)w, ++timercnt);
1334 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1645 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1335 timers [timercnt - 1] = w; 1646 timers [timercnt - 1] = (WT)w;
1336 upheap ((WT *)timers, timercnt - 1); 1647 upheap (timers, timercnt - 1);
1337 1648
1338 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1649 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1339} 1650}
1340 1651
1341void 1652void noinline
1342ev_timer_stop (EV_P_ struct ev_timer *w) 1653ev_timer_stop (EV_P_ ev_timer *w)
1343{ 1654{
1344 ev_clear_pending (EV_A_ (W)w); 1655 clear_pending (EV_A_ (W)w);
1345 if (!ev_is_active (w)) 1656 if (expect_false (!ev_is_active (w)))
1346 return; 1657 return;
1347 1658
1348 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1659 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1349 1660
1350 if (((W)w)->active < timercnt--) 1661 {
1662 int active = ((W)w)->active;
1663
1664 if (expect_true (--active < --timercnt))
1351 { 1665 {
1352 timers [((W)w)->active - 1] = timers [timercnt]; 1666 timers [active] = timers [timercnt];
1353 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1667 adjustheap (timers, timercnt, active);
1354 } 1668 }
1669 }
1355 1670
1356 ((WT)w)->at -= mn_now; 1671 ((WT)w)->at -= mn_now;
1357 1672
1358 ev_stop (EV_A_ (W)w); 1673 ev_stop (EV_A_ (W)w);
1359} 1674}
1360 1675
1361void 1676void noinline
1362ev_timer_again (EV_P_ struct ev_timer *w) 1677ev_timer_again (EV_P_ ev_timer *w)
1363{ 1678{
1364 if (ev_is_active (w)) 1679 if (ev_is_active (w))
1365 { 1680 {
1366 if (w->repeat) 1681 if (w->repeat)
1367 { 1682 {
1368 ((WT)w)->at = mn_now + w->repeat; 1683 ((WT)w)->at = mn_now + w->repeat;
1369 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1684 adjustheap (timers, timercnt, ((W)w)->active - 1);
1370 } 1685 }
1371 else 1686 else
1372 ev_timer_stop (EV_A_ w); 1687 ev_timer_stop (EV_A_ w);
1373 } 1688 }
1374 else if (w->repeat) 1689 else if (w->repeat)
1690 {
1691 w->at = w->repeat;
1375 ev_timer_start (EV_A_ w); 1692 ev_timer_start (EV_A_ w);
1693 }
1376} 1694}
1377 1695
1378#if EV_PERIODICS 1696#if EV_PERIODIC_ENABLE
1379void 1697void noinline
1380ev_periodic_start (EV_P_ struct ev_periodic *w) 1698ev_periodic_start (EV_P_ ev_periodic *w)
1381{ 1699{
1382 if (ev_is_active (w)) 1700 if (expect_false (ev_is_active (w)))
1383 return; 1701 return;
1384 1702
1385 if (w->reschedule_cb) 1703 if (w->reschedule_cb)
1386 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1704 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1387 else if (w->interval) 1705 else if (w->interval)
1388 { 1706 {
1389 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1707 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 */ 1708 /* 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; 1709 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1392 } 1710 }
1711 else
1712 ((WT)w)->at = w->offset;
1393 1713
1394 ev_start (EV_A_ (W)w, ++periodiccnt); 1714 ev_start (EV_A_ (W)w, ++periodiccnt);
1395 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1715 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1396 periodics [periodiccnt - 1] = w; 1716 periodics [periodiccnt - 1] = (WT)w;
1397 upheap ((WT *)periodics, periodiccnt - 1); 1717 upheap (periodics, periodiccnt - 1);
1398 1718
1399 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1719 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1400} 1720}
1401 1721
1402void 1722void noinline
1403ev_periodic_stop (EV_P_ struct ev_periodic *w) 1723ev_periodic_stop (EV_P_ ev_periodic *w)
1404{ 1724{
1405 ev_clear_pending (EV_A_ (W)w); 1725 clear_pending (EV_A_ (W)w);
1406 if (!ev_is_active (w)) 1726 if (expect_false (!ev_is_active (w)))
1407 return; 1727 return;
1408 1728
1409 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1729 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1410 1730
1411 if (((W)w)->active < periodiccnt--) 1731 {
1732 int active = ((W)w)->active;
1733
1734 if (expect_true (--active < --periodiccnt))
1412 { 1735 {
1413 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1736 periodics [active] = periodics [periodiccnt];
1414 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1737 adjustheap (periodics, periodiccnt, active);
1415 } 1738 }
1739 }
1416 1740
1417 ev_stop (EV_A_ (W)w); 1741 ev_stop (EV_A_ (W)w);
1418} 1742}
1419 1743
1420void 1744void noinline
1421ev_periodic_again (EV_P_ struct ev_periodic *w) 1745ev_periodic_again (EV_P_ ev_periodic *w)
1422{ 1746{
1423 /* TODO: use adjustheap and recalculation */ 1747 /* TODO: use adjustheap and recalculation */
1424 ev_periodic_stop (EV_A_ w); 1748 ev_periodic_stop (EV_A_ w);
1425 ev_periodic_start (EV_A_ w); 1749 ev_periodic_start (EV_A_ w);
1426} 1750}
1427#endif 1751#endif
1428 1752
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 1753#ifndef SA_RESTART
1496# define SA_RESTART 0 1754# define SA_RESTART 0
1497#endif 1755#endif
1498 1756
1499void 1757void noinline
1500ev_signal_start (EV_P_ struct ev_signal *w) 1758ev_signal_start (EV_P_ ev_signal *w)
1501{ 1759{
1502#if EV_MULTIPLICITY 1760#if EV_MULTIPLICITY
1503 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1761 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1504#endif 1762#endif
1505 if (ev_is_active (w)) 1763 if (expect_false (ev_is_active (w)))
1506 return; 1764 return;
1507 1765
1508 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1766 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1509 1767
1768 {
1769#ifndef _WIN32
1770 sigset_t full, prev;
1771 sigfillset (&full);
1772 sigprocmask (SIG_SETMASK, &full, &prev);
1773#endif
1774
1775 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1776
1777#ifndef _WIN32
1778 sigprocmask (SIG_SETMASK, &prev, 0);
1779#endif
1780 }
1781
1510 ev_start (EV_A_ (W)w, 1); 1782 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); 1783 wlist_add (&signals [w->signum - 1].head, (WL)w);
1513 1784
1514 if (!((WL)w)->next) 1785 if (!((WL)w)->next)
1515 { 1786 {
1516#if WIN32 1787#if _WIN32
1517 signal (w->signum, sighandler); 1788 signal (w->signum, sighandler);
1518#else 1789#else
1519 struct sigaction sa; 1790 struct sigaction sa;
1520 sa.sa_handler = sighandler; 1791 sa.sa_handler = sighandler;
1521 sigfillset (&sa.sa_mask); 1792 sigfillset (&sa.sa_mask);
… …
1523 sigaction (w->signum, &sa, 0); 1794 sigaction (w->signum, &sa, 0);
1524#endif 1795#endif
1525 } 1796 }
1526} 1797}
1527 1798
1528void 1799void noinline
1529ev_signal_stop (EV_P_ struct ev_signal *w) 1800ev_signal_stop (EV_P_ ev_signal *w)
1530{ 1801{
1531 ev_clear_pending (EV_A_ (W)w); 1802 clear_pending (EV_A_ (W)w);
1532 if (!ev_is_active (w)) 1803 if (expect_false (!ev_is_active (w)))
1533 return; 1804 return;
1534 1805
1535 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1806 wlist_del (&signals [w->signum - 1].head, (WL)w);
1536 ev_stop (EV_A_ (W)w); 1807 ev_stop (EV_A_ (W)w);
1537 1808
1538 if (!signals [w->signum - 1].head) 1809 if (!signals [w->signum - 1].head)
1539 signal (w->signum, SIG_DFL); 1810 signal (w->signum, SIG_DFL);
1540} 1811}
1541 1812
1542void 1813void
1543ev_child_start (EV_P_ struct ev_child *w) 1814ev_child_start (EV_P_ ev_child *w)
1544{ 1815{
1545#if EV_MULTIPLICITY 1816#if EV_MULTIPLICITY
1546 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1817 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1547#endif 1818#endif
1548 if (ev_is_active (w)) 1819 if (expect_false (ev_is_active (w)))
1549 return; 1820 return;
1550 1821
1551 ev_start (EV_A_ (W)w, 1); 1822 ev_start (EV_A_ (W)w, 1);
1552 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1823 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1553} 1824}
1554 1825
1555void 1826void
1556ev_child_stop (EV_P_ struct ev_child *w) 1827ev_child_stop (EV_P_ ev_child *w)
1557{ 1828{
1558 ev_clear_pending (EV_A_ (W)w); 1829 clear_pending (EV_A_ (W)w);
1559 if (!ev_is_active (w)) 1830 if (expect_false (!ev_is_active (w)))
1560 return; 1831 return;
1561 1832
1562 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1833 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1563 ev_stop (EV_A_ (W)w); 1834 ev_stop (EV_A_ (W)w);
1564} 1835}
1565 1836
1837#if EV_STAT_ENABLE
1838
1839# ifdef _WIN32
1840# undef lstat
1841# define lstat(a,b) _stati64 (a,b)
1842# endif
1843
1844#define DEF_STAT_INTERVAL 5.0074891
1845#define MIN_STAT_INTERVAL 0.1074891
1846
1847static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1848
1849#if EV_USE_INOTIFY
1850# define EV_INOTIFY_BUFSIZE 8192
1851
1852static void noinline
1853infy_add (EV_P_ ev_stat *w)
1854{
1855 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);
1856
1857 if (w->wd < 0)
1858 {
1859 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1860
1861 /* monitor some parent directory for speedup hints */
1862 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1863 {
1864 char path [4096];
1865 strcpy (path, w->path);
1866
1867 do
1868 {
1869 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1870 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1871
1872 char *pend = strrchr (path, '/');
1873
1874 if (!pend)
1875 break; /* whoops, no '/', complain to your admin */
1876
1877 *pend = 0;
1878 w->wd = inotify_add_watch (fs_fd, path, mask);
1879 }
1880 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1881 }
1882 }
1883 else
1884 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1885
1886 if (w->wd >= 0)
1887 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1888}
1889
1890static void noinline
1891infy_del (EV_P_ ev_stat *w)
1892{
1893 int slot;
1894 int wd = w->wd;
1895
1896 if (wd < 0)
1897 return;
1898
1899 w->wd = -2;
1900 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1901 wlist_del (&fs_hash [slot].head, (WL)w);
1902
1903 /* remove this watcher, if others are watching it, they will rearm */
1904 inotify_rm_watch (fs_fd, wd);
1905}
1906
1907static void noinline
1908infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1909{
1910 if (slot < 0)
1911 /* overflow, need to check for all hahs slots */
1912 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1913 infy_wd (EV_A_ slot, wd, ev);
1914 else
1915 {
1916 WL w_;
1917
1918 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1919 {
1920 ev_stat *w = (ev_stat *)w_;
1921 w_ = w_->next; /* lets us remove this watcher and all before it */
1922
1923 if (w->wd == wd || wd == -1)
1924 {
1925 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1926 {
1927 w->wd = -1;
1928 infy_add (EV_A_ w); /* re-add, no matter what */
1929 }
1930
1931 stat_timer_cb (EV_A_ &w->timer, 0);
1932 }
1933 }
1934 }
1935}
1936
1937static void
1938infy_cb (EV_P_ ev_io *w, int revents)
1939{
1940 char buf [EV_INOTIFY_BUFSIZE];
1941 struct inotify_event *ev = (struct inotify_event *)buf;
1942 int ofs;
1943 int len = read (fs_fd, buf, sizeof (buf));
1944
1945 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1946 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1947}
1948
1949void inline_size
1950infy_init (EV_P)
1951{
1952 if (fs_fd != -2)
1953 return;
1954
1955 fs_fd = inotify_init ();
1956
1957 if (fs_fd >= 0)
1958 {
1959 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1960 ev_set_priority (&fs_w, EV_MAXPRI);
1961 ev_io_start (EV_A_ &fs_w);
1962 }
1963}
1964
1965void inline_size
1966infy_fork (EV_P)
1967{
1968 int slot;
1969
1970 if (fs_fd < 0)
1971 return;
1972
1973 close (fs_fd);
1974 fs_fd = inotify_init ();
1975
1976 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1977 {
1978 WL w_ = fs_hash [slot].head;
1979 fs_hash [slot].head = 0;
1980
1981 while (w_)
1982 {
1983 ev_stat *w = (ev_stat *)w_;
1984 w_ = w_->next; /* lets us add this watcher */
1985
1986 w->wd = -1;
1987
1988 if (fs_fd >= 0)
1989 infy_add (EV_A_ w); /* re-add, no matter what */
1990 else
1991 ev_timer_start (EV_A_ &w->timer);
1992 }
1993
1994 }
1995}
1996
1997#endif
1998
1999void
2000ev_stat_stat (EV_P_ ev_stat *w)
2001{
2002 if (lstat (w->path, &w->attr) < 0)
2003 w->attr.st_nlink = 0;
2004 else if (!w->attr.st_nlink)
2005 w->attr.st_nlink = 1;
2006}
2007
2008static void noinline
2009stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2010{
2011 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2012
2013 /* we copy this here each the time so that */
2014 /* prev has the old value when the callback gets invoked */
2015 w->prev = w->attr;
2016 ev_stat_stat (EV_A_ w);
2017
2018 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2019 if (
2020 w->prev.st_dev != w->attr.st_dev
2021 || w->prev.st_ino != w->attr.st_ino
2022 || w->prev.st_mode != w->attr.st_mode
2023 || w->prev.st_nlink != w->attr.st_nlink
2024 || w->prev.st_uid != w->attr.st_uid
2025 || w->prev.st_gid != w->attr.st_gid
2026 || w->prev.st_rdev != w->attr.st_rdev
2027 || w->prev.st_size != w->attr.st_size
2028 || w->prev.st_atime != w->attr.st_atime
2029 || w->prev.st_mtime != w->attr.st_mtime
2030 || w->prev.st_ctime != w->attr.st_ctime
2031 ) {
2032 #if EV_USE_INOTIFY
2033 infy_del (EV_A_ w);
2034 infy_add (EV_A_ w);
2035 ev_stat_stat (EV_A_ w); /* avoid race... */
2036 #endif
2037
2038 ev_feed_event (EV_A_ w, EV_STAT);
2039 }
2040}
2041
2042void
2043ev_stat_start (EV_P_ ev_stat *w)
2044{
2045 if (expect_false (ev_is_active (w)))
2046 return;
2047
2048 /* since we use memcmp, we need to clear any padding data etc. */
2049 memset (&w->prev, 0, sizeof (ev_statdata));
2050 memset (&w->attr, 0, sizeof (ev_statdata));
2051
2052 ev_stat_stat (EV_A_ w);
2053
2054 if (w->interval < MIN_STAT_INTERVAL)
2055 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2056
2057 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2058 ev_set_priority (&w->timer, ev_priority (w));
2059
2060#if EV_USE_INOTIFY
2061 infy_init (EV_A);
2062
2063 if (fs_fd >= 0)
2064 infy_add (EV_A_ w);
2065 else
2066#endif
2067 ev_timer_start (EV_A_ &w->timer);
2068
2069 ev_start (EV_A_ (W)w, 1);
2070}
2071
2072void
2073ev_stat_stop (EV_P_ ev_stat *w)
2074{
2075 clear_pending (EV_A_ (W)w);
2076 if (expect_false (!ev_is_active (w)))
2077 return;
2078
2079#if EV_USE_INOTIFY
2080 infy_del (EV_A_ w);
2081#endif
2082 ev_timer_stop (EV_A_ &w->timer);
2083
2084 ev_stop (EV_A_ (W)w);
2085}
2086#endif
2087
2088#if EV_IDLE_ENABLE
2089void
2090ev_idle_start (EV_P_ ev_idle *w)
2091{
2092 if (expect_false (ev_is_active (w)))
2093 return;
2094
2095 pri_adjust (EV_A_ (W)w);
2096
2097 {
2098 int active = ++idlecnt [ABSPRI (w)];
2099
2100 ++idleall;
2101 ev_start (EV_A_ (W)w, active);
2102
2103 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2104 idles [ABSPRI (w)][active - 1] = w;
2105 }
2106}
2107
2108void
2109ev_idle_stop (EV_P_ ev_idle *w)
2110{
2111 clear_pending (EV_A_ (W)w);
2112 if (expect_false (!ev_is_active (w)))
2113 return;
2114
2115 {
2116 int active = ((W)w)->active;
2117
2118 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2119 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2120
2121 ev_stop (EV_A_ (W)w);
2122 --idleall;
2123 }
2124}
2125#endif
2126
2127void
2128ev_prepare_start (EV_P_ ev_prepare *w)
2129{
2130 if (expect_false (ev_is_active (w)))
2131 return;
2132
2133 ev_start (EV_A_ (W)w, ++preparecnt);
2134 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2135 prepares [preparecnt - 1] = w;
2136}
2137
2138void
2139ev_prepare_stop (EV_P_ ev_prepare *w)
2140{
2141 clear_pending (EV_A_ (W)w);
2142 if (expect_false (!ev_is_active (w)))
2143 return;
2144
2145 {
2146 int active = ((W)w)->active;
2147 prepares [active - 1] = prepares [--preparecnt];
2148 ((W)prepares [active - 1])->active = active;
2149 }
2150
2151 ev_stop (EV_A_ (W)w);
2152}
2153
2154void
2155ev_check_start (EV_P_ ev_check *w)
2156{
2157 if (expect_false (ev_is_active (w)))
2158 return;
2159
2160 ev_start (EV_A_ (W)w, ++checkcnt);
2161 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2162 checks [checkcnt - 1] = w;
2163}
2164
2165void
2166ev_check_stop (EV_P_ ev_check *w)
2167{
2168 clear_pending (EV_A_ (W)w);
2169 if (expect_false (!ev_is_active (w)))
2170 return;
2171
2172 {
2173 int active = ((W)w)->active;
2174 checks [active - 1] = checks [--checkcnt];
2175 ((W)checks [active - 1])->active = active;
2176 }
2177
2178 ev_stop (EV_A_ (W)w);
2179}
2180
2181#if EV_EMBED_ENABLE
2182void noinline
2183ev_embed_sweep (EV_P_ ev_embed *w)
2184{
2185 ev_loop (w->loop, EVLOOP_NONBLOCK);
2186}
2187
2188static void
2189embed_cb (EV_P_ ev_io *io, int revents)
2190{
2191 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2192
2193 if (ev_cb (w))
2194 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2195 else
2196 ev_embed_sweep (loop, w);
2197}
2198
2199void
2200ev_embed_start (EV_P_ ev_embed *w)
2201{
2202 if (expect_false (ev_is_active (w)))
2203 return;
2204
2205 {
2206 struct ev_loop *loop = w->loop;
2207 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2208 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2209 }
2210
2211 ev_set_priority (&w->io, ev_priority (w));
2212 ev_io_start (EV_A_ &w->io);
2213
2214 ev_start (EV_A_ (W)w, 1);
2215}
2216
2217void
2218ev_embed_stop (EV_P_ ev_embed *w)
2219{
2220 clear_pending (EV_A_ (W)w);
2221 if (expect_false (!ev_is_active (w)))
2222 return;
2223
2224 ev_io_stop (EV_A_ &w->io);
2225
2226 ev_stop (EV_A_ (W)w);
2227}
2228#endif
2229
2230#if EV_FORK_ENABLE
2231void
2232ev_fork_start (EV_P_ ev_fork *w)
2233{
2234 if (expect_false (ev_is_active (w)))
2235 return;
2236
2237 ev_start (EV_A_ (W)w, ++forkcnt);
2238 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2239 forks [forkcnt - 1] = w;
2240}
2241
2242void
2243ev_fork_stop (EV_P_ ev_fork *w)
2244{
2245 clear_pending (EV_A_ (W)w);
2246 if (expect_false (!ev_is_active (w)))
2247 return;
2248
2249 {
2250 int active = ((W)w)->active;
2251 forks [active - 1] = forks [--forkcnt];
2252 ((W)forks [active - 1])->active = active;
2253 }
2254
2255 ev_stop (EV_A_ (W)w);
2256}
2257#endif
2258
1566/*****************************************************************************/ 2259/*****************************************************************************/
1567 2260
1568struct ev_once 2261struct ev_once
1569{ 2262{
1570 struct ev_io io; 2263 ev_io io;
1571 struct ev_timer to; 2264 ev_timer to;
1572 void (*cb)(int revents, void *arg); 2265 void (*cb)(int revents, void *arg);
1573 void *arg; 2266 void *arg;
1574}; 2267};
1575 2268
1576static void 2269static void
… …
1585 2278
1586 cb (revents, arg); 2279 cb (revents, arg);
1587} 2280}
1588 2281
1589static void 2282static void
1590once_cb_io (EV_P_ struct ev_io *w, int revents) 2283once_cb_io (EV_P_ ev_io *w, int revents)
1591{ 2284{
1592 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2285 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1593} 2286}
1594 2287
1595static void 2288static void
1596once_cb_to (EV_P_ struct ev_timer *w, int revents) 2289once_cb_to (EV_P_ ev_timer *w, int revents)
1597{ 2290{
1598 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2291 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1599} 2292}
1600 2293
1601void 2294void
1602ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2295ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1603{ 2296{
1604 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2297 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1605 2298
1606 if (!once) 2299 if (expect_false (!once))
2300 {
1607 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2301 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1608 else 2302 return;
1609 { 2303 }
2304
1610 once->cb = cb; 2305 once->cb = cb;
1611 once->arg = arg; 2306 once->arg = arg;
1612 2307
1613 ev_init (&once->io, once_cb_io); 2308 ev_init (&once->io, once_cb_io);
1614 if (fd >= 0) 2309 if (fd >= 0)
1615 { 2310 {
1616 ev_io_set (&once->io, fd, events); 2311 ev_io_set (&once->io, fd, events);
1617 ev_io_start (EV_A_ &once->io); 2312 ev_io_start (EV_A_ &once->io);
1618 } 2313 }
1619 2314
1620 ev_init (&once->to, once_cb_to); 2315 ev_init (&once->to, once_cb_to);
1621 if (timeout >= 0.) 2316 if (timeout >= 0.)
1622 { 2317 {
1623 ev_timer_set (&once->to, timeout, 0.); 2318 ev_timer_set (&once->to, timeout, 0.);
1624 ev_timer_start (EV_A_ &once->to); 2319 ev_timer_start (EV_A_ &once->to);
1625 }
1626 } 2320 }
1627} 2321}
1628 2322
1629#ifdef __cplusplus 2323#ifdef __cplusplus
1630} 2324}

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