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Comparing libev/ev.c (file contents):
Revision 1.103 by root, Mon Nov 12 00:31:08 2007 UTC vs.
Revision 1.186 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_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
123#ifdef EV_H
124# include EV_H
125#else
126# include "ev.h"
127#endif
128
80#ifndef _WIN32 129#ifndef _WIN32
81# include <unistd.h>
82# include <sys/time.h> 130# include <sys/time.h>
83# include <sys/wait.h> 131# include <sys/wait.h>
132# include <unistd.h>
84#else 133#else
85# define WIN32_LEAN_AND_MEAN 134# define WIN32_LEAN_AND_MEAN
86# include <windows.h> 135# include <windows.h>
87# ifndef EV_SELECT_IS_WINSOCKET 136# ifndef EV_SELECT_IS_WINSOCKET
88# define EV_SELECT_IS_WINSOCKET 1 137# define EV_SELECT_IS_WINSOCKET 1
… …
90#endif 139#endif
91 140
92/**/ 141/**/
93 142
94#ifndef EV_USE_MONOTONIC 143#ifndef EV_USE_MONOTONIC
95# define EV_USE_MONOTONIC 1 144# define EV_USE_MONOTONIC 0
145#endif
146
147#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0
96#endif 149#endif
97 150
98#ifndef EV_USE_SELECT 151#ifndef EV_USE_SELECT
99# define EV_USE_SELECT 1 152# define EV_USE_SELECT 1
100#endif 153#endif
101 154
102#ifndef EV_USE_POLL 155#ifndef EV_USE_POLL
103# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ 156# ifdef _WIN32
157# define EV_USE_POLL 0
158# else
159# define EV_USE_POLL 1
160# endif
104#endif 161#endif
105 162
106#ifndef EV_USE_EPOLL 163#ifndef EV_USE_EPOLL
107# define EV_USE_EPOLL 0 164# define EV_USE_EPOLL 0
108#endif 165#endif
109 166
110#ifndef EV_USE_KQUEUE 167#ifndef EV_USE_KQUEUE
111# define EV_USE_KQUEUE 0 168# define EV_USE_KQUEUE 0
112#endif 169#endif
113 170
114#ifndef EV_USE_REALTIME 171#ifndef EV_USE_PORT
115# define EV_USE_REALTIME 1 172# 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
116#endif 193#endif
117 194
118/**/ 195/**/
119 196
120#ifndef CLOCK_MONOTONIC 197#ifndef CLOCK_MONOTONIC
… …
125#ifndef CLOCK_REALTIME 202#ifndef CLOCK_REALTIME
126# undef EV_USE_REALTIME 203# undef EV_USE_REALTIME
127# define EV_USE_REALTIME 0 204# define EV_USE_REALTIME 0
128#endif 205#endif
129 206
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
130#if EV_SELECT_IS_WINSOCKET 216#if EV_SELECT_IS_WINSOCKET
131# include <winsock.h> 217# include <winsock.h>
132#endif 218#endif
133 219
134/**/ 220/**/
135 221
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
136#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 232#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
137#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ 233#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
138#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
139/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ 234/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
140 235
141#ifdef EV_H
142# include EV_H
143#else
144# include "ev.h"
145#endif
146
147#if __GNUC__ >= 3 236#if __GNUC__ >= 4
148# define expect(expr,value) __builtin_expect ((expr),(value)) 237# define expect(expr,value) __builtin_expect ((expr),(value))
149# define inline inline 238# define noinline __attribute__ ((noinline))
150#else 239#else
151# define expect(expr,value) (expr) 240# define expect(expr,value) (expr)
152# define inline static 241# define noinline
242# if __STDC_VERSION__ < 199901L
243# define inline
244# endif
153#endif 245#endif
154 246
155#define expect_false(expr) expect ((expr) != 0, 0) 247#define expect_false(expr) expect ((expr) != 0, 0)
156#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
157 256
158#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 257#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
159#define ABSPRI(w) ((w)->priority - EV_MINPRI) 258#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
160 259
161#define EMPTY /* required for microsofts broken pseudo-c compiler */ 260#define EMPTY /* required for microsofts broken pseudo-c compiler */
261#define EMPTY2(a,b) /* used to suppress some warnings */
162 262
163typedef struct ev_watcher *W; 263typedef ev_watcher *W;
164typedef struct ev_watcher_list *WL; 264typedef ev_watcher_list *WL;
165typedef struct ev_watcher_time *WT; 265typedef ev_watcher_time *WT;
166 266
167static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 267static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
168 268
169#ifdef _WIN32 269#ifdef _WIN32
170# include "ev_win32.c" 270# include "ev_win32.c"
… …
172 272
173/*****************************************************************************/ 273/*****************************************************************************/
174 274
175static void (*syserr_cb)(const char *msg); 275static void (*syserr_cb)(const char *msg);
176 276
277void
177void ev_set_syserr_cb (void (*cb)(const char *msg)) 278ev_set_syserr_cb (void (*cb)(const char *msg))
178{ 279{
179 syserr_cb = cb; 280 syserr_cb = cb;
180} 281}
181 282
182static void 283static void noinline
183syserr (const char *msg) 284syserr (const char *msg)
184{ 285{
185 if (!msg) 286 if (!msg)
186 msg = "(libev) system error"; 287 msg = "(libev) system error";
187 288
… …
194 } 295 }
195} 296}
196 297
197static void *(*alloc)(void *ptr, long size); 298static void *(*alloc)(void *ptr, long size);
198 299
300void
199void ev_set_allocator (void *(*cb)(void *ptr, long size)) 301ev_set_allocator (void *(*cb)(void *ptr, long size))
200{ 302{
201 alloc = cb; 303 alloc = cb;
202} 304}
203 305
204static void * 306inline_speed void *
205ev_realloc (void *ptr, long size) 307ev_realloc (void *ptr, long size)
206{ 308{
207 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 309 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
208 310
209 if (!ptr && size) 311 if (!ptr && size)
… …
233typedef struct 335typedef struct
234{ 336{
235 W w; 337 W w;
236 int events; 338 int events;
237} ANPENDING; 339} ANPENDING;
340
341#if EV_USE_INOTIFY
342typedef struct
343{
344 WL head;
345} ANFS;
346#endif
238 347
239#if EV_MULTIPLICITY 348#if EV_MULTIPLICITY
240 349
241 struct ev_loop 350 struct ev_loop
242 { 351 {
… …
246 #include "ev_vars.h" 355 #include "ev_vars.h"
247 #undef VAR 356 #undef VAR
248 }; 357 };
249 #include "ev_wrap.h" 358 #include "ev_wrap.h"
250 359
251 struct ev_loop default_loop_struct; 360 static struct ev_loop default_loop_struct;
252 static struct ev_loop *default_loop; 361 struct ev_loop *ev_default_loop_ptr;
253 362
254#else 363#else
255 364
256 ev_tstamp ev_rt_now; 365 ev_tstamp ev_rt_now;
257 #define VAR(name,decl) static decl; 366 #define VAR(name,decl) static decl;
258 #include "ev_vars.h" 367 #include "ev_vars.h"
259 #undef VAR 368 #undef VAR
260 369
261 static int default_loop; 370 static int ev_default_loop_ptr;
262 371
263#endif 372#endif
264 373
265/*****************************************************************************/ 374/*****************************************************************************/
266 375
… …
276 gettimeofday (&tv, 0); 385 gettimeofday (&tv, 0);
277 return tv.tv_sec + tv.tv_usec * 1e-6; 386 return tv.tv_sec + tv.tv_usec * 1e-6;
278#endif 387#endif
279} 388}
280 389
281inline ev_tstamp 390ev_tstamp inline_size
282get_clock (void) 391get_clock (void)
283{ 392{
284#if EV_USE_MONOTONIC 393#if EV_USE_MONOTONIC
285 if (expect_true (have_monotonic)) 394 if (expect_true (have_monotonic))
286 { 395 {
… …
299{ 408{
300 return ev_rt_now; 409 return ev_rt_now;
301} 410}
302#endif 411#endif
303 412
304#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}
305 440
306#define array_needsize(type,base,cur,cnt,init) \ 441#define array_needsize(type,base,cur,cnt,init) \
307 if (expect_false ((cnt) > cur)) \ 442 if (expect_false ((cnt) > (cur))) \
308 { \ 443 { \
309 int newcnt = cur; \ 444 int ocur_ = (cur); \
310 do \ 445 (base) = (type *)array_realloc \
311 { \ 446 (sizeof (type), (base), &(cur), (cnt)); \
312 newcnt = array_roundsize (type, newcnt << 1); \ 447 init ((base) + (ocur_), (cur) - ocur_); \
313 } \
314 while ((cnt) > newcnt); \
315 \
316 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
317 init (base + cur, newcnt - cur); \
318 cur = newcnt; \
319 } 448 }
320 449
450#if 0
321#define array_slim(type,stem) \ 451#define array_slim(type,stem) \
322 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 452 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
323 { \ 453 { \
324 stem ## max = array_roundsize (stem ## cnt >> 1); \ 454 stem ## max = array_roundsize (stem ## cnt >> 1); \
325 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 455 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
326 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 456 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
327 } 457 }
458#endif
328 459
329#define array_free(stem, idx) \ 460#define array_free(stem, idx) \
330 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;
331 462
332/*****************************************************************************/ 463/*****************************************************************************/
333 464
334static 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
335anfds_init (ANFD *base, int count) 494anfds_init (ANFD *base, int count)
336{ 495{
337 while (count--) 496 while (count--)
338 { 497 {
339 base->head = 0; 498 base->head = 0;
… …
342 501
343 ++base; 502 ++base;
344 } 503 }
345} 504}
346 505
347void 506void inline_speed
348ev_feed_event (EV_P_ void *w, int revents)
349{
350 W w_ = (W)w;
351
352 if (w_->pending)
353 {
354 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
355 return;
356 }
357
358 w_->pending = ++pendingcnt [ABSPRI (w_)];
359 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
360 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
361 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
362}
363
364static void
365queue_events (EV_P_ W *events, int eventcnt, int type)
366{
367 int i;
368
369 for (i = 0; i < eventcnt; ++i)
370 ev_feed_event (EV_A_ events [i], type);
371}
372
373inline void
374fd_event (EV_P_ int fd, int revents) 507fd_event (EV_P_ int fd, int revents)
375{ 508{
376 ANFD *anfd = anfds + fd; 509 ANFD *anfd = anfds + fd;
377 struct ev_io *w; 510 ev_io *w;
378 511
379 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)
380 { 513 {
381 int ev = w->events & revents; 514 int ev = w->events & revents;
382 515
383 if (ev) 516 if (ev)
384 ev_feed_event (EV_A_ (W)w, ev); 517 ev_feed_event (EV_A_ (W)w, ev);
… …
386} 519}
387 520
388void 521void
389ev_feed_fd_event (EV_P_ int fd, int revents) 522ev_feed_fd_event (EV_P_ int fd, int revents)
390{ 523{
524 if (fd >= 0 && fd < anfdmax)
391 fd_event (EV_A_ fd, revents); 525 fd_event (EV_A_ fd, revents);
392} 526}
393 527
394/*****************************************************************************/ 528void inline_size
395
396static void
397fd_reify (EV_P) 529fd_reify (EV_P)
398{ 530{
399 int i; 531 int i;
400 532
401 for (i = 0; i < fdchangecnt; ++i) 533 for (i = 0; i < fdchangecnt; ++i)
402 { 534 {
403 int fd = fdchanges [i]; 535 int fd = fdchanges [i];
404 ANFD *anfd = anfds + fd; 536 ANFD *anfd = anfds + fd;
405 struct ev_io *w; 537 ev_io *w;
406 538
407 int events = 0; 539 unsigned char events = 0;
408 540
409 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)
410 events |= w->events; 542 events |= (unsigned char)w->events;
411 543
412#if EV_SELECT_IS_WINSOCKET 544#if EV_SELECT_IS_WINSOCKET
413 if (events) 545 if (events)
414 { 546 {
415 unsigned long argp; 547 unsigned long argp;
416 anfd->handle = _get_osfhandle (fd); 548 anfd->handle = _get_osfhandle (fd);
417 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); 549 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
418 } 550 }
419#endif 551#endif
420 552
553 {
554 unsigned char o_events = anfd->events;
555 unsigned char o_reify = anfd->reify;
556
421 anfd->reify = 0; 557 anfd->reify = 0;
422
423 method_modify (EV_A_ fd, anfd->events, events);
424 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 }
425 } 563 }
426 564
427 fdchangecnt = 0; 565 fdchangecnt = 0;
428} 566}
429 567
430static void 568void inline_size
431fd_change (EV_P_ int fd) 569fd_change (EV_P_ int fd, int flags)
432{ 570{
433 if (anfds [fd].reify) 571 unsigned char reify = anfds [fd].reify;
434 return;
435
436 anfds [fd].reify = 1; 572 anfds [fd].reify |= flags;
437 573
574 if (expect_true (!reify))
575 {
438 ++fdchangecnt; 576 ++fdchangecnt;
439 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 577 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
440 fdchanges [fdchangecnt - 1] = fd; 578 fdchanges [fdchangecnt - 1] = fd;
579 }
441} 580}
442 581
443static void 582void inline_speed
444fd_kill (EV_P_ int fd) 583fd_kill (EV_P_ int fd)
445{ 584{
446 struct ev_io *w; 585 ev_io *w;
447 586
448 while ((w = (struct ev_io *)anfds [fd].head)) 587 while ((w = (ev_io *)anfds [fd].head))
449 { 588 {
450 ev_io_stop (EV_A_ w); 589 ev_io_stop (EV_A_ w);
451 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);
452 } 591 }
453} 592}
454 593
455static int 594int inline_size
456fd_valid (int fd) 595fd_valid (int fd)
457{ 596{
458#ifdef _WIN32 597#ifdef _WIN32
459 return _get_osfhandle (fd) != -1; 598 return _get_osfhandle (fd) != -1;
460#else 599#else
461 return fcntl (fd, F_GETFD) != -1; 600 return fcntl (fd, F_GETFD) != -1;
462#endif 601#endif
463} 602}
464 603
465/* called on EBADF to verify fds */ 604/* called on EBADF to verify fds */
466static void 605static void noinline
467fd_ebadf (EV_P) 606fd_ebadf (EV_P)
468{ 607{
469 int fd; 608 int fd;
470 609
471 for (fd = 0; fd < anfdmax; ++fd) 610 for (fd = 0; fd < anfdmax; ++fd)
… …
473 if (!fd_valid (fd) == -1 && errno == EBADF) 612 if (!fd_valid (fd) == -1 && errno == EBADF)
474 fd_kill (EV_A_ fd); 613 fd_kill (EV_A_ fd);
475} 614}
476 615
477/* 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 */
478static void 617static void noinline
479fd_enomem (EV_P) 618fd_enomem (EV_P)
480{ 619{
481 int fd; 620 int fd;
482 621
483 for (fd = anfdmax; fd--; ) 622 for (fd = anfdmax; fd--; )
… …
486 fd_kill (EV_A_ fd); 625 fd_kill (EV_A_ fd);
487 return; 626 return;
488 } 627 }
489} 628}
490 629
491/* 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 */
492static void 631static void noinline
493fd_rearm_all (EV_P) 632fd_rearm_all (EV_P)
494{ 633{
495 int fd; 634 int fd;
496 635
497 /* this should be highly optimised to not do anything but set a flag */
498 for (fd = 0; fd < anfdmax; ++fd) 636 for (fd = 0; fd < anfdmax; ++fd)
499 if (anfds [fd].events) 637 if (anfds [fd].events)
500 { 638 {
501 anfds [fd].events = 0; 639 anfds [fd].events = 0;
502 fd_change (EV_A_ fd); 640 fd_change (EV_A_ fd, EV_IOFDSET | 1);
503 } 641 }
504} 642}
505 643
506/*****************************************************************************/ 644/*****************************************************************************/
507 645
508static void 646void inline_speed
509upheap (WT *heap, int k) 647upheap (WT *heap, int k)
510{ 648{
511 WT w = heap [k]; 649 WT w = heap [k];
512 650
513 while (k && heap [k >> 1]->at > w->at) 651 while (k)
514 { 652 {
653 int p = (k - 1) >> 1;
654
655 if (heap [p]->at <= w->at)
656 break;
657
515 heap [k] = heap [k >> 1]; 658 heap [k] = heap [p];
516 ((W)heap [k])->active = k + 1; 659 ((W)heap [k])->active = k + 1;
517 k >>= 1; 660 k = p;
518 } 661 }
519 662
520 heap [k] = w; 663 heap [k] = w;
521 ((W)heap [k])->active = k + 1; 664 ((W)heap [k])->active = k + 1;
522
523} 665}
524 666
525static void 667void inline_speed
526downheap (WT *heap, int N, int k) 668downheap (WT *heap, int N, int k)
527{ 669{
528 WT w = heap [k]; 670 WT w = heap [k];
529 671
530 while (k < (N >> 1)) 672 for (;;)
531 { 673 {
532 int j = k << 1; 674 int c = (k << 1) + 1;
533 675
534 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 676 if (c >= N)
535 ++j;
536
537 if (w->at <= heap [j]->at)
538 break; 677 break;
539 678
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
540 heap [k] = heap [j]; 685 heap [k] = heap [c];
541 ((W)heap [k])->active = k + 1; 686 ((W)heap [k])->active = k + 1;
687
542 k = j; 688 k = c;
543 } 689 }
544 690
545 heap [k] = w; 691 heap [k] = w;
546 ((W)heap [k])->active = k + 1; 692 ((W)heap [k])->active = k + 1;
547} 693}
548 694
549inline void 695void inline_size
550adjustheap (WT *heap, int N, int k) 696adjustheap (WT *heap, int N, int k)
551{ 697{
552 upheap (heap, k); 698 upheap (heap, k);
553 downheap (heap, N, k); 699 downheap (heap, N, k);
554} 700}
… …
564static ANSIG *signals; 710static ANSIG *signals;
565static int signalmax; 711static int signalmax;
566 712
567static int sigpipe [2]; 713static int sigpipe [2];
568static sig_atomic_t volatile gotsig; 714static sig_atomic_t volatile gotsig;
569static struct ev_io sigev; 715static ev_io sigev;
570 716
571static void 717void inline_size
572signals_init (ANSIG *base, int count) 718signals_init (ANSIG *base, int count)
573{ 719{
574 while (count--) 720 while (count--)
575 { 721 {
576 base->head = 0; 722 base->head = 0;
… …
596 write (sigpipe [1], &signum, 1); 742 write (sigpipe [1], &signum, 1);
597 errno = old_errno; 743 errno = old_errno;
598 } 744 }
599} 745}
600 746
601void 747void noinline
602ev_feed_signal_event (EV_P_ int signum) 748ev_feed_signal_event (EV_P_ int signum)
603{ 749{
604 WL w; 750 WL w;
605 751
606#if EV_MULTIPLICITY 752#if EV_MULTIPLICITY
607 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));
608#endif 754#endif
609 755
610 --signum; 756 --signum;
611 757
612 if (signum < 0 || signum >= signalmax) 758 if (signum < 0 || signum >= signalmax)
… …
617 for (w = signals [signum].head; w; w = w->next) 763 for (w = signals [signum].head; w; w = w->next)
618 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 764 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
619} 765}
620 766
621static void 767static void
622sigcb (EV_P_ struct ev_io *iow, int revents) 768sigcb (EV_P_ ev_io *iow, int revents)
623{ 769{
624 int signum; 770 int signum;
625 771
626 read (sigpipe [0], &revents, 1); 772 read (sigpipe [0], &revents, 1);
627 gotsig = 0; 773 gotsig = 0;
… …
629 for (signum = signalmax; signum--; ) 775 for (signum = signalmax; signum--; )
630 if (signals [signum].gotsig) 776 if (signals [signum].gotsig)
631 ev_feed_signal_event (EV_A_ signum + 1); 777 ev_feed_signal_event (EV_A_ signum + 1);
632} 778}
633 779
634inline void 780void inline_speed
635fd_intern (int fd) 781fd_intern (int fd)
636{ 782{
637#ifdef _WIN32 783#ifdef _WIN32
638 int arg = 1; 784 int arg = 1;
639 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 785 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
641 fcntl (fd, F_SETFD, FD_CLOEXEC); 787 fcntl (fd, F_SETFD, FD_CLOEXEC);
642 fcntl (fd, F_SETFL, O_NONBLOCK); 788 fcntl (fd, F_SETFL, O_NONBLOCK);
643#endif 789#endif
644} 790}
645 791
646static void 792static void noinline
647siginit (EV_P) 793siginit (EV_P)
648{ 794{
649 fd_intern (sigpipe [0]); 795 fd_intern (sigpipe [0]);
650 fd_intern (sigpipe [1]); 796 fd_intern (sigpipe [1]);
651 797
… …
654 ev_unref (EV_A); /* child watcher should not keep loop alive */ 800 ev_unref (EV_A); /* child watcher should not keep loop alive */
655} 801}
656 802
657/*****************************************************************************/ 803/*****************************************************************************/
658 804
659static struct ev_child *childs [PID_HASHSIZE]; 805static WL childs [EV_PID_HASHSIZE];
660 806
661#ifndef _WIN32 807#ifndef _WIN32
662 808
663static 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}
664 825
665#ifndef WCONTINUED 826#ifndef WCONTINUED
666# define WCONTINUED 0 827# define WCONTINUED 0
667#endif 828#endif
668 829
669static void 830static void
670child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
671{
672 struct ev_child *w;
673
674 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
675 if (w->pid == pid || !w->pid)
676 {
677 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
678 w->rpid = pid;
679 w->rstatus = status;
680 ev_feed_event (EV_A_ (W)w, EV_CHILD);
681 }
682}
683
684static void
685childcb (EV_P_ struct ev_signal *sw, int revents) 831childcb (EV_P_ ev_signal *sw, int revents)
686{ 832{
687 int pid, status; 833 int pid, status;
688 834
835 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
689 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 836 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
690 { 837 if (!WCONTINUED
838 || errno != EINVAL
839 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
840 return;
841
691 /* 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 */
692 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 844 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
693 845
694 child_reap (EV_A_ sw, pid, pid, status); 846 child_reap (EV_A_ sw, pid, pid, status);
847 if (EV_PID_HASHSIZE > 1)
695 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 */
696 }
697} 849}
698 850
699#endif 851#endif
700 852
701/*****************************************************************************/ 853/*****************************************************************************/
702 854
855#if EV_USE_PORT
856# include "ev_port.c"
857#endif
703#if EV_USE_KQUEUE 858#if EV_USE_KQUEUE
704# include "ev_kqueue.c" 859# include "ev_kqueue.c"
705#endif 860#endif
706#if EV_USE_EPOLL 861#if EV_USE_EPOLL
707# include "ev_epoll.c" 862# include "ev_epoll.c"
… …
724{ 879{
725 return EV_VERSION_MINOR; 880 return EV_VERSION_MINOR;
726} 881}
727 882
728/* 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 */
729static int 884int inline_size
730enable_secure (void) 885enable_secure (void)
731{ 886{
732#ifdef _WIN32 887#ifdef _WIN32
733 return 0; 888 return 0;
734#else 889#else
735 return getuid () != geteuid () 890 return getuid () != geteuid ()
736 || getgid () != getegid (); 891 || getgid () != getegid ();
737#endif 892#endif
738} 893}
739 894
740int 895unsigned int
741ev_method (EV_P) 896ev_supported_backends (void)
742{ 897{
743 return method; 898 unsigned int flags = 0;
744}
745 899
746static void 900 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
747loop_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)
748{ 911{
749 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)
750 { 951 {
751#if EV_USE_MONOTONIC 952#if EV_USE_MONOTONIC
752 { 953 {
753 struct timespec ts; 954 struct timespec ts;
754 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 955 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
759 ev_rt_now = ev_time (); 960 ev_rt_now = ev_time ();
760 mn_now = get_clock (); 961 mn_now = get_clock ();
761 now_floor = mn_now; 962 now_floor = mn_now;
762 rtmn_diff = ev_rt_now - mn_now; 963 rtmn_diff = ev_rt_now - mn_now;
763 964
764 if (methods == EVMETHOD_AUTO) 965 /* pid check not overridable via env */
765 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"))
766 methods = atoi (getenv ("LIBEV_METHODS")); 974 flags = atoi (getenv ("LIBEV_FLAGS"));
767 else
768 methods = EVMETHOD_ANY;
769 975
770 method = 0; 976 if (!(flags & 0x0000ffffUL))
977 flags |= ev_recommended_backends ();
978
979 backend = 0;
980 backend_fd = -1;
981#if EV_USE_INOTIFY
982 fs_fd = -2;
983#endif
984
985#if EV_USE_PORT
986 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
987#endif
771#if EV_USE_KQUEUE 988#if EV_USE_KQUEUE
772 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 989 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
773#endif 990#endif
774#if EV_USE_EPOLL 991#if EV_USE_EPOLL
775 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 992 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
776#endif 993#endif
777#if EV_USE_POLL 994#if EV_USE_POLL
778 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 995 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
779#endif 996#endif
780#if EV_USE_SELECT 997#if EV_USE_SELECT
781 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 998 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
782#endif 999#endif
783 1000
784 ev_init (&sigev, sigcb); 1001 ev_init (&sigev, sigcb);
785 ev_set_priority (&sigev, EV_MAXPRI); 1002 ev_set_priority (&sigev, EV_MAXPRI);
786 } 1003 }
787} 1004}
788 1005
789void 1006static void noinline
790loop_destroy (EV_P) 1007loop_destroy (EV_P)
791{ 1008{
792 int i; 1009 int i;
793 1010
1011#if EV_USE_INOTIFY
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);
1021#endif
794#if EV_USE_KQUEUE 1022#if EV_USE_KQUEUE
795 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1023 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
796#endif 1024#endif
797#if EV_USE_EPOLL 1025#if EV_USE_EPOLL
798 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1026 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
799#endif 1027#endif
800#if EV_USE_POLL 1028#if EV_USE_POLL
801 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1029 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
802#endif 1030#endif
803#if EV_USE_SELECT 1031#if EV_USE_SELECT
804 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1032 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
805#endif 1033#endif
806 1034
807 for (i = NUMPRI; i--; ) 1035 for (i = NUMPRI; i--; )
1036 {
808 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;
809 1044
810 /* have to use the microsoft-never-gets-it-right macro */ 1045 /* have to use the microsoft-never-gets-it-right macro */
811 array_free (fdchange, EMPTY); 1046 array_free (fdchange, EMPTY);
812 array_free (timer, EMPTY); 1047 array_free (timer, EMPTY);
813#if EV_PERIODICS 1048#if EV_PERIODIC_ENABLE
814 array_free (periodic, EMPTY); 1049 array_free (periodic, EMPTY);
815#endif 1050#endif
816 array_free (idle, EMPTY);
817 array_free (prepare, EMPTY); 1051 array_free (prepare, EMPTY);
818 array_free (check, EMPTY); 1052 array_free (check, EMPTY);
1053 array_free (fork, EMPTY);
819 1054
820 method = 0; 1055 backend = 0;
821} 1056}
822 1057
823static void 1058void inline_size infy_fork (EV_P);
1059
1060void inline_size
824loop_fork (EV_P) 1061loop_fork (EV_P)
825{ 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
826#if EV_USE_EPOLL 1069#if EV_USE_EPOLL
827 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1070 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
828#endif 1071#endif
829#if EV_USE_KQUEUE 1072#if EV_USE_INOTIFY
830 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1073 infy_fork (EV_A);
831#endif 1074#endif
832 1075
833 if (ev_is_active (&sigev)) 1076 if (ev_is_active (&sigev))
834 { 1077 {
835 /* default loop */ 1078 /* default loop */
… …
848 postfork = 0; 1091 postfork = 0;
849} 1092}
850 1093
851#if EV_MULTIPLICITY 1094#if EV_MULTIPLICITY
852struct ev_loop * 1095struct ev_loop *
853ev_loop_new (int methods) 1096ev_loop_new (unsigned int flags)
854{ 1097{
855 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));
856 1099
857 memset (loop, 0, sizeof (struct ev_loop)); 1100 memset (loop, 0, sizeof (struct ev_loop));
858 1101
859 loop_init (EV_A_ methods); 1102 loop_init (EV_A_ flags);
860 1103
861 if (ev_method (EV_A)) 1104 if (ev_backend (EV_A))
862 return loop; 1105 return loop;
863 1106
864 return 0; 1107 return 0;
865} 1108}
866 1109
… …
879 1122
880#endif 1123#endif
881 1124
882#if EV_MULTIPLICITY 1125#if EV_MULTIPLICITY
883struct ev_loop * 1126struct ev_loop *
1127ev_default_loop_init (unsigned int flags)
884#else 1128#else
885int 1129int
1130ev_default_loop (unsigned int flags)
886#endif 1131#endif
887ev_default_loop (int methods)
888{ 1132{
889 if (sigpipe [0] == sigpipe [1]) 1133 if (sigpipe [0] == sigpipe [1])
890 if (pipe (sigpipe)) 1134 if (pipe (sigpipe))
891 return 0; 1135 return 0;
892 1136
893 if (!default_loop) 1137 if (!ev_default_loop_ptr)
894 { 1138 {
895#if EV_MULTIPLICITY 1139#if EV_MULTIPLICITY
896 struct ev_loop *loop = default_loop = &default_loop_struct; 1140 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
897#else 1141#else
898 default_loop = 1; 1142 ev_default_loop_ptr = 1;
899#endif 1143#endif
900 1144
901 loop_init (EV_A_ methods); 1145 loop_init (EV_A_ flags);
902 1146
903 if (ev_method (EV_A)) 1147 if (ev_backend (EV_A))
904 { 1148 {
905 siginit (EV_A); 1149 siginit (EV_A);
906 1150
907#ifndef _WIN32 1151#ifndef _WIN32
908 ev_signal_init (&childev, childcb, SIGCHLD); 1152 ev_signal_init (&childev, childcb, SIGCHLD);
… …
910 ev_signal_start (EV_A_ &childev); 1154 ev_signal_start (EV_A_ &childev);
911 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1155 ev_unref (EV_A); /* child watcher should not keep loop alive */
912#endif 1156#endif
913 } 1157 }
914 else 1158 else
915 default_loop = 0; 1159 ev_default_loop_ptr = 0;
916 } 1160 }
917 1161
918 return default_loop; 1162 return ev_default_loop_ptr;
919} 1163}
920 1164
921void 1165void
922ev_default_destroy (void) 1166ev_default_destroy (void)
923{ 1167{
924#if EV_MULTIPLICITY 1168#if EV_MULTIPLICITY
925 struct ev_loop *loop = default_loop; 1169 struct ev_loop *loop = ev_default_loop_ptr;
926#endif 1170#endif
927 1171
928#ifndef _WIN32 1172#ifndef _WIN32
929 ev_ref (EV_A); /* child watcher */ 1173 ev_ref (EV_A); /* child watcher */
930 ev_signal_stop (EV_A_ &childev); 1174 ev_signal_stop (EV_A_ &childev);
… …
941 1185
942void 1186void
943ev_default_fork (void) 1187ev_default_fork (void)
944{ 1188{
945#if EV_MULTIPLICITY 1189#if EV_MULTIPLICITY
946 struct ev_loop *loop = default_loop; 1190 struct ev_loop *loop = ev_default_loop_ptr;
947#endif 1191#endif
948 1192
949 if (method) 1193 if (backend)
950 postfork = 1; 1194 postfork = 1;
951} 1195}
952 1196
953/*****************************************************************************/ 1197/*****************************************************************************/
954 1198
955static int 1199void
956any_pending (EV_P) 1200ev_invoke (EV_P_ void *w, int revents)
957{ 1201{
958 int pri; 1202 EV_CB_INVOKE ((W)w, revents);
959
960 for (pri = NUMPRI; pri--; )
961 if (pendingcnt [pri])
962 return 1;
963
964 return 0;
965} 1203}
966 1204
967static void 1205void inline_speed
968call_pending (EV_P) 1206call_pending (EV_P)
969{ 1207{
970 int pri; 1208 int pri;
971 1209
972 for (pri = NUMPRI; pri--; ) 1210 for (pri = NUMPRI; pri--; )
973 while (pendingcnt [pri]) 1211 while (pendingcnt [pri])
974 { 1212 {
975 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1213 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
976 1214
977 if (p->w) 1215 if (expect_true (p->w))
978 { 1216 {
1217 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1218
979 p->w->pending = 0; 1219 p->w->pending = 0;
980 EV_CB_INVOKE (p->w, p->events); 1220 EV_CB_INVOKE (p->w, p->events);
981 } 1221 }
982 } 1222 }
983} 1223}
984 1224
985static void 1225void inline_size
986timers_reify (EV_P) 1226timers_reify (EV_P)
987{ 1227{
988 while (timercnt && ((WT)timers [0])->at <= mn_now) 1228 while (timercnt && ((WT)timers [0])->at <= mn_now)
989 { 1229 {
990 struct ev_timer *w = timers [0]; 1230 ev_timer *w = (ev_timer *)timers [0];
991 1231
992 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1232 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
993 1233
994 /* first reschedule or stop timer */ 1234 /* first reschedule or stop timer */
995 if (w->repeat) 1235 if (w->repeat)
996 { 1236 {
997 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.));
998 1238
999 ((WT)w)->at += w->repeat; 1239 ((WT)w)->at += w->repeat;
1000 if (((WT)w)->at < mn_now) 1240 if (((WT)w)->at < mn_now)
1001 ((WT)w)->at = mn_now; 1241 ((WT)w)->at = mn_now;
1002 1242
1003 downheap ((WT *)timers, timercnt, 0); 1243 downheap (timers, timercnt, 0);
1004 } 1244 }
1005 else 1245 else
1006 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1246 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1007 1247
1008 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1248 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1009 } 1249 }
1010} 1250}
1011 1251
1012#if EV_PERIODICS 1252#if EV_PERIODIC_ENABLE
1013static void 1253void inline_size
1014periodics_reify (EV_P) 1254periodics_reify (EV_P)
1015{ 1255{
1016 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1256 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1017 { 1257 {
1018 struct ev_periodic *w = periodics [0]; 1258 ev_periodic *w = (ev_periodic *)periodics [0];
1019 1259
1020 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1260 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1021 1261
1022 /* first reschedule or stop timer */ 1262 /* first reschedule or stop timer */
1023 if (w->reschedule_cb) 1263 if (w->reschedule_cb)
1024 { 1264 {
1025 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);
1026
1027 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));
1028 downheap ((WT *)periodics, periodiccnt, 0); 1267 downheap (periodics, periodiccnt, 0);
1029 } 1268 }
1030 else if (w->interval) 1269 else if (w->interval)
1031 { 1270 {
1032 ((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;
1033 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));
1034 downheap ((WT *)periodics, periodiccnt, 0); 1274 downheap (periodics, periodiccnt, 0);
1035 } 1275 }
1036 else 1276 else
1037 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1277 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1038 1278
1039 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1279 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1040 } 1280 }
1041} 1281}
1042 1282
1043static void 1283static void noinline
1044periodics_reschedule (EV_P) 1284periodics_reschedule (EV_P)
1045{ 1285{
1046 int i; 1286 int i;
1047 1287
1048 /* adjust periodics after time jump */ 1288 /* adjust periodics after time jump */
1049 for (i = 0; i < periodiccnt; ++i) 1289 for (i = 0; i < periodiccnt; ++i)
1050 { 1290 {
1051 struct ev_periodic *w = periodics [i]; 1291 ev_periodic *w = (ev_periodic *)periodics [i];
1052 1292
1053 if (w->reschedule_cb) 1293 if (w->reschedule_cb)
1054 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1294 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1055 else if (w->interval) 1295 else if (w->interval)
1056 ((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;
1057 } 1297 }
1058 1298
1059 /* now rebuild the heap */ 1299 /* now rebuild the heap */
1060 for (i = periodiccnt >> 1; i--; ) 1300 for (i = periodiccnt >> 1; i--; )
1061 downheap ((WT *)periodics, periodiccnt, i); 1301 downheap (periodics, periodiccnt, i);
1062} 1302}
1063#endif 1303#endif
1064 1304
1065inline int 1305#if EV_IDLE_ENABLE
1066time_update_monotonic (EV_P) 1306void inline_size
1307idle_reify (EV_P)
1067{ 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
1068 mn_now = get_clock (); 1338 mn_now = get_clock ();
1069 1339
1340 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1341 /* interpolate in the meantime */
1070 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1342 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1071 { 1343 {
1072 ev_rt_now = rtmn_diff + mn_now; 1344 ev_rt_now = rtmn_diff + mn_now;
1073 return 0; 1345 return;
1074 } 1346 }
1075 else 1347
1076 {
1077 now_floor = mn_now; 1348 now_floor = mn_now;
1078 ev_rt_now = ev_time (); 1349 ev_rt_now = ev_time ();
1079 return 1;
1080 }
1081}
1082 1350
1083static void 1351 /* loop a few times, before making important decisions.
1084time_update (EV_P) 1352 * on the choice of "4": one iteration isn't enough,
1085{ 1353 * in case we get preempted during the calls to
1086 int i; 1354 * ev_time and get_clock. a second call is almost guaranteed
1087 1355 * to succeed in that case, though. and looping a few more times
1088#if EV_USE_MONOTONIC 1356 * doesn't hurt either as we only do this on time-jumps or
1089 if (expect_true (have_monotonic)) 1357 * in the unlikely event of having been preempted here.
1090 { 1358 */
1091 if (time_update_monotonic (EV_A)) 1359 for (i = 4; --i; )
1092 { 1360 {
1093 ev_tstamp odiff = rtmn_diff;
1094
1095 for (i = 4; --i; ) /* loop a few times, before making important decisions */
1096 {
1097 rtmn_diff = ev_rt_now - mn_now; 1361 rtmn_diff = ev_rt_now - mn_now;
1098 1362
1099 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1363 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1100 return; /* all is well */ 1364 return; /* all is well */
1101 1365
1102 ev_rt_now = ev_time (); 1366 ev_rt_now = ev_time ();
1103 mn_now = get_clock (); 1367 mn_now = get_clock ();
1104 now_floor = mn_now; 1368 now_floor = mn_now;
1105 } 1369 }
1106 1370
1107# 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
1108 periodics_reschedule (EV_A); 1385 periodics_reschedule (EV_A);
1109# endif 1386#endif
1110 /* no timer adjustment, as the monotonic clock doesn't jump */
1111 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1112 }
1113 }
1114 else
1115#endif
1116 {
1117 ev_rt_now = ev_time ();
1118
1119 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1120 {
1121#if EV_PERIODICS
1122 periodics_reschedule (EV_A);
1123#endif
1124
1125 /* adjust timers. this is easy, as the offset is the same for all */ 1387 /* adjust timers. this is easy, as the offset is the same for all of them */
1126 for (i = 0; i < timercnt; ++i) 1388 for (i = 0; i < timercnt; ++i)
1127 ((WT)timers [i])->at += ev_rt_now - mn_now; 1389 ((WT)timers [i])->at += ev_rt_now - mn_now;
1128 } 1390 }
1129 1391
1130 mn_now = ev_rt_now; 1392 mn_now = ev_rt_now;
… …
1146static int loop_done; 1408static int loop_done;
1147 1409
1148void 1410void
1149ev_loop (EV_P_ int flags) 1411ev_loop (EV_P_ int flags)
1150{ 1412{
1151 double block;
1152 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 */
1153 1418
1154 do 1419 do
1155 { 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
1156 /* queue check watchers (and execute them) */ 1440 /* queue prepare watchers (and execute them) */
1157 if (expect_false (preparecnt)) 1441 if (expect_false (preparecnt))
1158 { 1442 {
1159 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1443 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1160 call_pending (EV_A); 1444 call_pending (EV_A);
1161 } 1445 }
1162 1446
1447 if (expect_false (!activecnt))
1448 break;
1449
1163 /* we might have forked, so reify kernel state if necessary */ 1450 /* we might have forked, so reify kernel state if necessary */
1164 if (expect_false (postfork)) 1451 if (expect_false (postfork))
1165 loop_fork (EV_A); 1452 loop_fork (EV_A);
1166 1453
1167 /* update fd-related kernel structures */ 1454 /* update fd-related kernel structures */
1168 fd_reify (EV_A); 1455 fd_reify (EV_A);
1169 1456
1170 /* calculate blocking time */ 1457 /* calculate blocking time */
1458 {
1459 ev_tstamp block;
1171 1460
1172 /* we only need this for !monotonic clock or timers, but as we basically 1461 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1173 always have timers, we just calculate it always */ 1462 block = 0.; /* do not block at all */
1174#if EV_USE_MONOTONIC
1175 if (expect_true (have_monotonic))
1176 time_update_monotonic (EV_A);
1177 else 1463 else
1178#endif
1179 { 1464 {
1180 ev_rt_now = ev_time (); 1465 /* update time to cancel out callback processing overhead */
1181 mn_now = ev_rt_now; 1466 time_update (EV_A_ 1e100);
1182 }
1183 1467
1184 if (flags & EVLOOP_NONBLOCK || idlecnt)
1185 block = 0.;
1186 else
1187 {
1188 block = MAX_BLOCKTIME; 1468 block = MAX_BLOCKTIME;
1189 1469
1190 if (timercnt) 1470 if (timercnt)
1191 { 1471 {
1192 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1472 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1193 if (block > to) block = to; 1473 if (block > to) block = to;
1194 } 1474 }
1195 1475
1196#if EV_PERIODICS 1476#if EV_PERIODIC_ENABLE
1197 if (periodiccnt) 1477 if (periodiccnt)
1198 { 1478 {
1199 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;
1200 if (block > to) block = to; 1480 if (block > to) block = to;
1201 } 1481 }
1202#endif 1482#endif
1203 1483
1204 if (block < 0.) block = 0.; 1484 if (expect_false (block < 0.)) block = 0.;
1205 } 1485 }
1206 1486
1487 ++loop_count;
1207 method_poll (EV_A_ block); 1488 backend_poll (EV_A_ block);
1208 1489
1209 /* update ev_rt_now, do magic */ 1490 /* update ev_rt_now, do magic */
1210 time_update (EV_A); 1491 time_update (EV_A_ block);
1492 }
1211 1493
1212 /* queue pending timers and reschedule them */ 1494 /* queue pending timers and reschedule them */
1213 timers_reify (EV_A); /* relative timers called last */ 1495 timers_reify (EV_A); /* relative timers called last */
1214#if EV_PERIODICS 1496#if EV_PERIODIC_ENABLE
1215 periodics_reify (EV_A); /* absolute timers called first */ 1497 periodics_reify (EV_A); /* absolute timers called first */
1216#endif 1498#endif
1217 1499
1500#if EV_IDLE_ENABLE
1218 /* queue idle watchers unless io or timers are pending */ 1501 /* queue idle watchers unless other events are pending */
1219 if (idlecnt && !any_pending (EV_A)) 1502 idle_reify (EV_A);
1220 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1503#endif
1221 1504
1222 /* queue check watchers, to be executed first */ 1505 /* queue check watchers, to be executed first */
1223 if (checkcnt) 1506 if (expect_false (checkcnt))
1224 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1507 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1225 1508
1226 call_pending (EV_A); 1509 call_pending (EV_A);
1510
1227 } 1511 }
1228 while (activecnt && !loop_done); 1512 while (expect_true (activecnt && !loop_done));
1229 1513
1230 if (loop_done != 2) 1514 if (loop_done == EVUNLOOP_ONE)
1231 loop_done = 0; 1515 loop_done = EVUNLOOP_CANCEL;
1232} 1516}
1233 1517
1234void 1518void
1235ev_unloop (EV_P_ int how) 1519ev_unloop (EV_P_ int how)
1236{ 1520{
1237 loop_done = how; 1521 loop_done = how;
1238} 1522}
1239 1523
1240/*****************************************************************************/ 1524/*****************************************************************************/
1241 1525
1242inline void 1526void inline_size
1243wlist_add (WL *head, WL elem) 1527wlist_add (WL *head, WL elem)
1244{ 1528{
1245 elem->next = *head; 1529 elem->next = *head;
1246 *head = elem; 1530 *head = elem;
1247} 1531}
1248 1532
1249inline void 1533void inline_size
1250wlist_del (WL *head, WL elem) 1534wlist_del (WL *head, WL elem)
1251{ 1535{
1252 while (*head) 1536 while (*head)
1253 { 1537 {
1254 if (*head == elem) 1538 if (*head == elem)
… …
1259 1543
1260 head = &(*head)->next; 1544 head = &(*head)->next;
1261 } 1545 }
1262} 1546}
1263 1547
1264inline void 1548void inline_speed
1265ev_clear_pending (EV_P_ W w) 1549clear_pending (EV_P_ W w)
1266{ 1550{
1267 if (w->pending) 1551 if (w->pending)
1268 { 1552 {
1269 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1553 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1270 w->pending = 0; 1554 w->pending = 0;
1271 } 1555 }
1272} 1556}
1273 1557
1274inline 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
1275ev_start (EV_P_ W w, int active) 1585ev_start (EV_P_ W w, int active)
1276{ 1586{
1277 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1587 pri_adjust (EV_A_ w);
1278 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1279
1280 w->active = active; 1588 w->active = active;
1281 ev_ref (EV_A); 1589 ev_ref (EV_A);
1282} 1590}
1283 1591
1284inline void 1592void inline_size
1285ev_stop (EV_P_ W w) 1593ev_stop (EV_P_ W w)
1286{ 1594{
1287 ev_unref (EV_A); 1595 ev_unref (EV_A);
1288 w->active = 0; 1596 w->active = 0;
1289} 1597}
1290 1598
1291/*****************************************************************************/ 1599/*****************************************************************************/
1292 1600
1293void 1601void noinline
1294ev_io_start (EV_P_ struct ev_io *w) 1602ev_io_start (EV_P_ ev_io *w)
1295{ 1603{
1296 int fd = w->fd; 1604 int fd = w->fd;
1297 1605
1298 if (ev_is_active (w)) 1606 if (expect_false (ev_is_active (w)))
1299 return; 1607 return;
1300 1608
1301 assert (("ev_io_start called with negative fd", fd >= 0)); 1609 assert (("ev_io_start called with negative fd", fd >= 0));
1302 1610
1303 ev_start (EV_A_ (W)w, 1); 1611 ev_start (EV_A_ (W)w, 1);
1304 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1612 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1305 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1613 wlist_add (&anfds[fd].head, (WL)w);
1306 1614
1307 fd_change (EV_A_ fd); 1615 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1616 w->events &= ~EV_IOFDSET;
1308} 1617}
1309 1618
1310void 1619void noinline
1311ev_io_stop (EV_P_ struct ev_io *w) 1620ev_io_stop (EV_P_ ev_io *w)
1312{ 1621{
1313 ev_clear_pending (EV_A_ (W)w); 1622 clear_pending (EV_A_ (W)w);
1314 if (!ev_is_active (w)) 1623 if (expect_false (!ev_is_active (w)))
1315 return; 1624 return;
1316 1625
1317 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));
1318 1627
1319 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1628 wlist_del (&anfds[w->fd].head, (WL)w);
1320 ev_stop (EV_A_ (W)w); 1629 ev_stop (EV_A_ (W)w);
1321 1630
1322 fd_change (EV_A_ w->fd); 1631 fd_change (EV_A_ w->fd, 1);
1323} 1632}
1324 1633
1325void 1634void noinline
1326ev_timer_start (EV_P_ struct ev_timer *w) 1635ev_timer_start (EV_P_ ev_timer *w)
1327{ 1636{
1328 if (ev_is_active (w)) 1637 if (expect_false (ev_is_active (w)))
1329 return; 1638 return;
1330 1639
1331 ((WT)w)->at += mn_now; 1640 ((WT)w)->at += mn_now;
1332 1641
1333 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.));
1334 1643
1335 ev_start (EV_A_ (W)w, ++timercnt); 1644 ev_start (EV_A_ (W)w, ++timercnt);
1336 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1645 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1337 timers [timercnt - 1] = w; 1646 timers [timercnt - 1] = (WT)w;
1338 upheap ((WT *)timers, timercnt - 1); 1647 upheap (timers, timercnt - 1);
1339 1648
1340 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1649 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1341} 1650}
1342 1651
1343void 1652void noinline
1344ev_timer_stop (EV_P_ struct ev_timer *w) 1653ev_timer_stop (EV_P_ ev_timer *w)
1345{ 1654{
1346 ev_clear_pending (EV_A_ (W)w); 1655 clear_pending (EV_A_ (W)w);
1347 if (!ev_is_active (w)) 1656 if (expect_false (!ev_is_active (w)))
1348 return; 1657 return;
1349 1658
1350 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1659 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1351 1660
1352 if (((W)w)->active < timercnt--) 1661 {
1662 int active = ((W)w)->active;
1663
1664 if (expect_true (--active < --timercnt))
1353 { 1665 {
1354 timers [((W)w)->active - 1] = timers [timercnt]; 1666 timers [active] = timers [timercnt];
1355 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1667 adjustheap (timers, timercnt, active);
1356 } 1668 }
1669 }
1357 1670
1358 ((WT)w)->at -= mn_now; 1671 ((WT)w)->at -= mn_now;
1359 1672
1360 ev_stop (EV_A_ (W)w); 1673 ev_stop (EV_A_ (W)w);
1361} 1674}
1362 1675
1363void 1676void noinline
1364ev_timer_again (EV_P_ struct ev_timer *w) 1677ev_timer_again (EV_P_ ev_timer *w)
1365{ 1678{
1366 if (ev_is_active (w)) 1679 if (ev_is_active (w))
1367 { 1680 {
1368 if (w->repeat) 1681 if (w->repeat)
1369 { 1682 {
1370 ((WT)w)->at = mn_now + w->repeat; 1683 ((WT)w)->at = mn_now + w->repeat;
1371 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1684 adjustheap (timers, timercnt, ((W)w)->active - 1);
1372 } 1685 }
1373 else 1686 else
1374 ev_timer_stop (EV_A_ w); 1687 ev_timer_stop (EV_A_ w);
1375 } 1688 }
1376 else if (w->repeat) 1689 else if (w->repeat)
1690 {
1691 w->at = w->repeat;
1377 ev_timer_start (EV_A_ w); 1692 ev_timer_start (EV_A_ w);
1693 }
1378} 1694}
1379 1695
1380#if EV_PERIODICS 1696#if EV_PERIODIC_ENABLE
1381void 1697void noinline
1382ev_periodic_start (EV_P_ struct ev_periodic *w) 1698ev_periodic_start (EV_P_ ev_periodic *w)
1383{ 1699{
1384 if (ev_is_active (w)) 1700 if (expect_false (ev_is_active (w)))
1385 return; 1701 return;
1386 1702
1387 if (w->reschedule_cb) 1703 if (w->reschedule_cb)
1388 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1704 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1389 else if (w->interval) 1705 else if (w->interval)
1390 { 1706 {
1391 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.));
1392 /* 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 */
1393 ((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;
1394 } 1710 }
1711 else
1712 ((WT)w)->at = w->offset;
1395 1713
1396 ev_start (EV_A_ (W)w, ++periodiccnt); 1714 ev_start (EV_A_ (W)w, ++periodiccnt);
1397 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1715 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1398 periodics [periodiccnt - 1] = w; 1716 periodics [periodiccnt - 1] = (WT)w;
1399 upheap ((WT *)periodics, periodiccnt - 1); 1717 upheap (periodics, periodiccnt - 1);
1400 1718
1401 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1719 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1402} 1720}
1403 1721
1404void 1722void noinline
1405ev_periodic_stop (EV_P_ struct ev_periodic *w) 1723ev_periodic_stop (EV_P_ ev_periodic *w)
1406{ 1724{
1407 ev_clear_pending (EV_A_ (W)w); 1725 clear_pending (EV_A_ (W)w);
1408 if (!ev_is_active (w)) 1726 if (expect_false (!ev_is_active (w)))
1409 return; 1727 return;
1410 1728
1411 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1729 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1412 1730
1413 if (((W)w)->active < periodiccnt--) 1731 {
1732 int active = ((W)w)->active;
1733
1734 if (expect_true (--active < --periodiccnt))
1414 { 1735 {
1415 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1736 periodics [active] = periodics [periodiccnt];
1416 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1737 adjustheap (periodics, periodiccnt, active);
1417 } 1738 }
1739 }
1418 1740
1419 ev_stop (EV_A_ (W)w); 1741 ev_stop (EV_A_ (W)w);
1420} 1742}
1421 1743
1422void 1744void noinline
1423ev_periodic_again (EV_P_ struct ev_periodic *w) 1745ev_periodic_again (EV_P_ ev_periodic *w)
1424{ 1746{
1425 /* TODO: use adjustheap and recalculation */ 1747 /* TODO: use adjustheap and recalculation */
1426 ev_periodic_stop (EV_A_ w); 1748 ev_periodic_stop (EV_A_ w);
1427 ev_periodic_start (EV_A_ w); 1749 ev_periodic_start (EV_A_ w);
1428} 1750}
1429#endif 1751#endif
1430 1752
1431void
1432ev_idle_start (EV_P_ struct ev_idle *w)
1433{
1434 if (ev_is_active (w))
1435 return;
1436
1437 ev_start (EV_A_ (W)w, ++idlecnt);
1438 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1439 idles [idlecnt - 1] = w;
1440}
1441
1442void
1443ev_idle_stop (EV_P_ struct ev_idle *w)
1444{
1445 ev_clear_pending (EV_A_ (W)w);
1446 if (!ev_is_active (w))
1447 return;
1448
1449 idles [((W)w)->active - 1] = idles [--idlecnt];
1450 ev_stop (EV_A_ (W)w);
1451}
1452
1453void
1454ev_prepare_start (EV_P_ struct ev_prepare *w)
1455{
1456 if (ev_is_active (w))
1457 return;
1458
1459 ev_start (EV_A_ (W)w, ++preparecnt);
1460 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1461 prepares [preparecnt - 1] = w;
1462}
1463
1464void
1465ev_prepare_stop (EV_P_ struct ev_prepare *w)
1466{
1467 ev_clear_pending (EV_A_ (W)w);
1468 if (!ev_is_active (w))
1469 return;
1470
1471 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1472 ev_stop (EV_A_ (W)w);
1473}
1474
1475void
1476ev_check_start (EV_P_ struct ev_check *w)
1477{
1478 if (ev_is_active (w))
1479 return;
1480
1481 ev_start (EV_A_ (W)w, ++checkcnt);
1482 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1483 checks [checkcnt - 1] = w;
1484}
1485
1486void
1487ev_check_stop (EV_P_ struct ev_check *w)
1488{
1489 ev_clear_pending (EV_A_ (W)w);
1490 if (!ev_is_active (w))
1491 return;
1492
1493 checks [((W)w)->active - 1] = checks [--checkcnt];
1494 ev_stop (EV_A_ (W)w);
1495}
1496
1497#ifndef SA_RESTART 1753#ifndef SA_RESTART
1498# define SA_RESTART 0 1754# define SA_RESTART 0
1499#endif 1755#endif
1500 1756
1501void 1757void noinline
1502ev_signal_start (EV_P_ struct ev_signal *w) 1758ev_signal_start (EV_P_ ev_signal *w)
1503{ 1759{
1504#if EV_MULTIPLICITY 1760#if EV_MULTIPLICITY
1505 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));
1506#endif 1762#endif
1507 if (ev_is_active (w)) 1763 if (expect_false (ev_is_active (w)))
1508 return; 1764 return;
1509 1765
1510 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));
1511 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
1512 ev_start (EV_A_ (W)w, 1); 1782 ev_start (EV_A_ (W)w, 1);
1513 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1514 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1783 wlist_add (&signals [w->signum - 1].head, (WL)w);
1515 1784
1516 if (!((WL)w)->next) 1785 if (!((WL)w)->next)
1517 { 1786 {
1518#if _WIN32 1787#if _WIN32
1519 signal (w->signum, sighandler); 1788 signal (w->signum, sighandler);
… …
1525 sigaction (w->signum, &sa, 0); 1794 sigaction (w->signum, &sa, 0);
1526#endif 1795#endif
1527 } 1796 }
1528} 1797}
1529 1798
1530void 1799void noinline
1531ev_signal_stop (EV_P_ struct ev_signal *w) 1800ev_signal_stop (EV_P_ ev_signal *w)
1532{ 1801{
1533 ev_clear_pending (EV_A_ (W)w); 1802 clear_pending (EV_A_ (W)w);
1534 if (!ev_is_active (w)) 1803 if (expect_false (!ev_is_active (w)))
1535 return; 1804 return;
1536 1805
1537 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1806 wlist_del (&signals [w->signum - 1].head, (WL)w);
1538 ev_stop (EV_A_ (W)w); 1807 ev_stop (EV_A_ (W)w);
1539 1808
1540 if (!signals [w->signum - 1].head) 1809 if (!signals [w->signum - 1].head)
1541 signal (w->signum, SIG_DFL); 1810 signal (w->signum, SIG_DFL);
1542} 1811}
1543 1812
1544void 1813void
1545ev_child_start (EV_P_ struct ev_child *w) 1814ev_child_start (EV_P_ ev_child *w)
1546{ 1815{
1547#if EV_MULTIPLICITY 1816#if EV_MULTIPLICITY
1548 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));
1549#endif 1818#endif
1550 if (ev_is_active (w)) 1819 if (expect_false (ev_is_active (w)))
1551 return; 1820 return;
1552 1821
1553 ev_start (EV_A_ (W)w, 1); 1822 ev_start (EV_A_ (W)w, 1);
1554 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1823 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1555} 1824}
1556 1825
1557void 1826void
1558ev_child_stop (EV_P_ struct ev_child *w) 1827ev_child_stop (EV_P_ ev_child *w)
1559{ 1828{
1560 ev_clear_pending (EV_A_ (W)w); 1829 clear_pending (EV_A_ (W)w);
1561 if (!ev_is_active (w)) 1830 if (expect_false (!ev_is_active (w)))
1562 return; 1831 return;
1563 1832
1564 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1833 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1565 ev_stop (EV_A_ (W)w); 1834 ev_stop (EV_A_ (W)w);
1566} 1835}
1567 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
1568/*****************************************************************************/ 2259/*****************************************************************************/
1569 2260
1570struct ev_once 2261struct ev_once
1571{ 2262{
1572 struct ev_io io; 2263 ev_io io;
1573 struct ev_timer to; 2264 ev_timer to;
1574 void (*cb)(int revents, void *arg); 2265 void (*cb)(int revents, void *arg);
1575 void *arg; 2266 void *arg;
1576}; 2267};
1577 2268
1578static void 2269static void
… …
1587 2278
1588 cb (revents, arg); 2279 cb (revents, arg);
1589} 2280}
1590 2281
1591static void 2282static void
1592once_cb_io (EV_P_ struct ev_io *w, int revents) 2283once_cb_io (EV_P_ ev_io *w, int revents)
1593{ 2284{
1594 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);
1595} 2286}
1596 2287
1597static void 2288static void
1598once_cb_to (EV_P_ struct ev_timer *w, int revents) 2289once_cb_to (EV_P_ ev_timer *w, int revents)
1599{ 2290{
1600 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);
1601} 2292}
1602 2293
1603void 2294void
1604ev_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)
1605{ 2296{
1606 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));
1607 2298
1608 if (!once) 2299 if (expect_false (!once))
2300 {
1609 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2301 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1610 else 2302 return;
1611 { 2303 }
2304
1612 once->cb = cb; 2305 once->cb = cb;
1613 once->arg = arg; 2306 once->arg = arg;
1614 2307
1615 ev_init (&once->io, once_cb_io); 2308 ev_init (&once->io, once_cb_io);
1616 if (fd >= 0) 2309 if (fd >= 0)
1617 { 2310 {
1618 ev_io_set (&once->io, fd, events); 2311 ev_io_set (&once->io, fd, events);
1619 ev_io_start (EV_A_ &once->io); 2312 ev_io_start (EV_A_ &once->io);
1620 } 2313 }
1621 2314
1622 ev_init (&once->to, once_cb_to); 2315 ev_init (&once->to, once_cb_to);
1623 if (timeout >= 0.) 2316 if (timeout >= 0.)
1624 { 2317 {
1625 ev_timer_set (&once->to, timeout, 0.); 2318 ev_timer_set (&once->to, timeout, 0.);
1626 ev_timer_start (EV_A_ &once->to); 2319 ev_timer_start (EV_A_ &once->to);
1627 }
1628 } 2320 }
1629} 2321}
1630 2322
1631#ifdef __cplusplus 2323#ifdef __cplusplus
1632} 2324}

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