ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.104 by root, Mon Nov 12 00:39:45 2007 UTC vs.
Revision 1.183 by root, Wed Dec 12 05:11:56 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# define EV_SELECT_USE_FD_SET 1
101#endif 153#endif
102 154
103#ifndef EV_USE_POLL 155#ifndef EV_USE_POLL
104# ifdef _WIN32 156# ifdef _WIN32
105# define EV_USE_POLL 0 157# define EV_USE_POLL 0
… …
114 166
115#ifndef EV_USE_KQUEUE 167#ifndef EV_USE_KQUEUE
116# define EV_USE_KQUEUE 0 168# define EV_USE_KQUEUE 0
117#endif 169#endif
118 170
119#ifndef EV_USE_REALTIME 171#ifndef EV_USE_PORT
120# 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
121#endif 193#endif
122 194
123/**/ 195/**/
124 196
125#ifndef CLOCK_MONOTONIC 197#ifndef CLOCK_MONOTONIC
… …
134 206
135#if EV_SELECT_IS_WINSOCKET 207#if EV_SELECT_IS_WINSOCKET
136# include <winsock.h> 208# include <winsock.h>
137#endif 209#endif
138 210
211#if !EV_STAT_ENABLE
212# define EV_USE_INOTIFY 0
213#endif
214
215#if EV_USE_INOTIFY
216# include <sys/inotify.h>
217#endif
218
139/**/ 219/**/
140 220
221/*
222 * This is used to avoid floating point rounding problems.
223 * It is added to ev_rt_now when scheduling periodics
224 * to ensure progress, time-wise, even when rounding
225 * errors are against us.
226 * This value is good at least till the year 4000.
227 * Better solutions welcome.
228 */
229#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
230
141#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 231#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
142#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ 232#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
143#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
144/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ 233/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
145
146#ifdef EV_H
147# include EV_H
148#else
149# include "ev.h"
150#endif
151 234
152#if __GNUC__ >= 3 235#if __GNUC__ >= 3
153# define expect(expr,value) __builtin_expect ((expr),(value)) 236# define expect(expr,value) __builtin_expect ((expr),(value))
154# define inline inline 237# define noinline __attribute__ ((noinline))
155#else 238#else
156# define expect(expr,value) (expr) 239# define expect(expr,value) (expr)
157# define inline static 240# define noinline
241# if __STDC_VERSION__ < 199901L
242# define inline
243# endif
158#endif 244#endif
159 245
160#define expect_false(expr) expect ((expr) != 0, 0) 246#define expect_false(expr) expect ((expr) != 0, 0)
161#define expect_true(expr) expect ((expr) != 0, 1) 247#define expect_true(expr) expect ((expr) != 0, 1)
248#define inline_size static inline
249
250#if EV_MINIMAL
251# define inline_speed static noinline
252#else
253# define inline_speed static inline
254#endif
162 255
163#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 256#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
164#define ABSPRI(w) ((w)->priority - EV_MINPRI) 257#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
165 258
166#define EMPTY /* required for microsofts broken pseudo-c compiler */ 259#define EMPTY /* required for microsofts broken pseudo-c compiler */
260#define EMPTY2(a,b) /* used to suppress some warnings */
167 261
168typedef struct ev_watcher *W; 262typedef ev_watcher *W;
169typedef struct ev_watcher_list *WL; 263typedef ev_watcher_list *WL;
170typedef struct ev_watcher_time *WT; 264typedef ev_watcher_time *WT;
171 265
172static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 266static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
173 267
174#ifdef _WIN32 268#ifdef _WIN32
175# include "ev_win32.c" 269# include "ev_win32.c"
… …
177 271
178/*****************************************************************************/ 272/*****************************************************************************/
179 273
180static void (*syserr_cb)(const char *msg); 274static void (*syserr_cb)(const char *msg);
181 275
276void
182void ev_set_syserr_cb (void (*cb)(const char *msg)) 277ev_set_syserr_cb (void (*cb)(const char *msg))
183{ 278{
184 syserr_cb = cb; 279 syserr_cb = cb;
185} 280}
186 281
187static void 282static void noinline
188syserr (const char *msg) 283syserr (const char *msg)
189{ 284{
190 if (!msg) 285 if (!msg)
191 msg = "(libev) system error"; 286 msg = "(libev) system error";
192 287
… …
199 } 294 }
200} 295}
201 296
202static void *(*alloc)(void *ptr, long size); 297static void *(*alloc)(void *ptr, long size);
203 298
299void
204void ev_set_allocator (void *(*cb)(void *ptr, long size)) 300ev_set_allocator (void *(*cb)(void *ptr, long size))
205{ 301{
206 alloc = cb; 302 alloc = cb;
207} 303}
208 304
209static void * 305inline_speed void *
210ev_realloc (void *ptr, long size) 306ev_realloc (void *ptr, long size)
211{ 307{
212 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 308 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
213 309
214 if (!ptr && size) 310 if (!ptr && size)
… …
238typedef struct 334typedef struct
239{ 335{
240 W w; 336 W w;
241 int events; 337 int events;
242} ANPENDING; 338} ANPENDING;
339
340#if EV_USE_INOTIFY
341typedef struct
342{
343 WL head;
344} ANFS;
345#endif
243 346
244#if EV_MULTIPLICITY 347#if EV_MULTIPLICITY
245 348
246 struct ev_loop 349 struct ev_loop
247 { 350 {
… …
251 #include "ev_vars.h" 354 #include "ev_vars.h"
252 #undef VAR 355 #undef VAR
253 }; 356 };
254 #include "ev_wrap.h" 357 #include "ev_wrap.h"
255 358
256 struct ev_loop default_loop_struct; 359 static struct ev_loop default_loop_struct;
257 static struct ev_loop *default_loop; 360 struct ev_loop *ev_default_loop_ptr;
258 361
259#else 362#else
260 363
261 ev_tstamp ev_rt_now; 364 ev_tstamp ev_rt_now;
262 #define VAR(name,decl) static decl; 365 #define VAR(name,decl) static decl;
263 #include "ev_vars.h" 366 #include "ev_vars.h"
264 #undef VAR 367 #undef VAR
265 368
266 static int default_loop; 369 static int ev_default_loop_ptr;
267 370
268#endif 371#endif
269 372
270/*****************************************************************************/ 373/*****************************************************************************/
271 374
… …
281 gettimeofday (&tv, 0); 384 gettimeofday (&tv, 0);
282 return tv.tv_sec + tv.tv_usec * 1e-6; 385 return tv.tv_sec + tv.tv_usec * 1e-6;
283#endif 386#endif
284} 387}
285 388
286inline ev_tstamp 389ev_tstamp inline_size
287get_clock (void) 390get_clock (void)
288{ 391{
289#if EV_USE_MONOTONIC 392#if EV_USE_MONOTONIC
290 if (expect_true (have_monotonic)) 393 if (expect_true (have_monotonic))
291 { 394 {
… …
304{ 407{
305 return ev_rt_now; 408 return ev_rt_now;
306} 409}
307#endif 410#endif
308 411
309#define array_roundsize(type,n) ((n) | 4 & ~3) 412int inline_size
413array_nextsize (int elem, int cur, int cnt)
414{
415 int ncur = cur + 1;
416
417 do
418 ncur <<= 1;
419 while (cnt > ncur);
420
421 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
422 if (elem * ncur > 4096)
423 {
424 ncur *= elem;
425 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
426 ncur = ncur - sizeof (void *) * 4;
427 ncur /= elem;
428 }
429
430 return ncur;
431}
432
433static noinline void *
434array_realloc (int elem, void *base, int *cur, int cnt)
435{
436 *cur = array_nextsize (elem, *cur, cnt);
437 return ev_realloc (base, elem * *cur);
438}
310 439
311#define array_needsize(type,base,cur,cnt,init) \ 440#define array_needsize(type,base,cur,cnt,init) \
312 if (expect_false ((cnt) > cur)) \ 441 if (expect_false ((cnt) > (cur))) \
313 { \ 442 { \
314 int newcnt = cur; \ 443 int ocur_ = (cur); \
315 do \ 444 (base) = (type *)array_realloc \
316 { \ 445 (sizeof (type), (base), &(cur), (cnt)); \
317 newcnt = array_roundsize (type, newcnt << 1); \ 446 init ((base) + (ocur_), (cur) - ocur_); \
318 } \
319 while ((cnt) > newcnt); \
320 \
321 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
322 init (base + cur, newcnt - cur); \
323 cur = newcnt; \
324 } 447 }
325 448
449#if 0
326#define array_slim(type,stem) \ 450#define array_slim(type,stem) \
327 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 451 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
328 { \ 452 { \
329 stem ## max = array_roundsize (stem ## cnt >> 1); \ 453 stem ## max = array_roundsize (stem ## cnt >> 1); \
330 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 454 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
331 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 455 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
332 } 456 }
457#endif
333 458
334#define array_free(stem, idx) \ 459#define array_free(stem, idx) \
335 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 460 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
336 461
337/*****************************************************************************/ 462/*****************************************************************************/
338 463
339static void 464void noinline
465ev_feed_event (EV_P_ void *w, int revents)
466{
467 W w_ = (W)w;
468 int pri = ABSPRI (w_);
469
470 if (expect_false (w_->pending))
471 pendings [pri][w_->pending - 1].events |= revents;
472 else
473 {
474 w_->pending = ++pendingcnt [pri];
475 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
476 pendings [pri][w_->pending - 1].w = w_;
477 pendings [pri][w_->pending - 1].events = revents;
478 }
479}
480
481void inline_speed
482queue_events (EV_P_ W *events, int eventcnt, int type)
483{
484 int i;
485
486 for (i = 0; i < eventcnt; ++i)
487 ev_feed_event (EV_A_ events [i], type);
488}
489
490/*****************************************************************************/
491
492void inline_size
340anfds_init (ANFD *base, int count) 493anfds_init (ANFD *base, int count)
341{ 494{
342 while (count--) 495 while (count--)
343 { 496 {
344 base->head = 0; 497 base->head = 0;
… …
347 500
348 ++base; 501 ++base;
349 } 502 }
350} 503}
351 504
352void 505void inline_speed
353ev_feed_event (EV_P_ void *w, int revents)
354{
355 W w_ = (W)w;
356
357 if (w_->pending)
358 {
359 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
360 return;
361 }
362
363 w_->pending = ++pendingcnt [ABSPRI (w_)];
364 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
365 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
366 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
367}
368
369static void
370queue_events (EV_P_ W *events, int eventcnt, int type)
371{
372 int i;
373
374 for (i = 0; i < eventcnt; ++i)
375 ev_feed_event (EV_A_ events [i], type);
376}
377
378inline void
379fd_event (EV_P_ int fd, int revents) 506fd_event (EV_P_ int fd, int revents)
380{ 507{
381 ANFD *anfd = anfds + fd; 508 ANFD *anfd = anfds + fd;
382 struct ev_io *w; 509 ev_io *w;
383 510
384 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 511 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
385 { 512 {
386 int ev = w->events & revents; 513 int ev = w->events & revents;
387 514
388 if (ev) 515 if (ev)
389 ev_feed_event (EV_A_ (W)w, ev); 516 ev_feed_event (EV_A_ (W)w, ev);
… …
391} 518}
392 519
393void 520void
394ev_feed_fd_event (EV_P_ int fd, int revents) 521ev_feed_fd_event (EV_P_ int fd, int revents)
395{ 522{
523 if (fd >= 0 && fd < anfdmax)
396 fd_event (EV_A_ fd, revents); 524 fd_event (EV_A_ fd, revents);
397} 525}
398 526
399/*****************************************************************************/ 527void inline_size
400
401static void
402fd_reify (EV_P) 528fd_reify (EV_P)
403{ 529{
404 int i; 530 int i;
405 531
406 for (i = 0; i < fdchangecnt; ++i) 532 for (i = 0; i < fdchangecnt; ++i)
407 { 533 {
408 int fd = fdchanges [i]; 534 int fd = fdchanges [i];
409 ANFD *anfd = anfds + fd; 535 ANFD *anfd = anfds + fd;
410 struct ev_io *w; 536 ev_io *w;
411 537
412 int events = 0; 538 int events = 0;
413 539
414 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 540 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
415 events |= w->events; 541 events |= w->events;
416 542
417#if EV_SELECT_IS_WINSOCKET 543#if EV_SELECT_IS_WINSOCKET
418 if (events) 544 if (events)
419 { 545 {
… …
423 } 549 }
424#endif 550#endif
425 551
426 anfd->reify = 0; 552 anfd->reify = 0;
427 553
428 method_modify (EV_A_ fd, anfd->events, events); 554 backend_modify (EV_A_ fd, anfd->events, events);
429 anfd->events = events; 555 anfd->events = events;
430 } 556 }
431 557
432 fdchangecnt = 0; 558 fdchangecnt = 0;
433} 559}
434 560
435static void 561void inline_size
436fd_change (EV_P_ int fd) 562fd_change (EV_P_ int fd, int flags)
437{ 563{
438 if (anfds [fd].reify) 564 unsigned char reify = anfds [fd].reify;
439 return;
440
441 anfds [fd].reify = 1; 565 anfds [fd].reify |= flags | 1;
442 566
567 if (expect_true (!reify))
568 {
443 ++fdchangecnt; 569 ++fdchangecnt;
444 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 570 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
445 fdchanges [fdchangecnt - 1] = fd; 571 fdchanges [fdchangecnt - 1] = fd;
572 }
446} 573}
447 574
448static void 575void inline_speed
449fd_kill (EV_P_ int fd) 576fd_kill (EV_P_ int fd)
450{ 577{
451 struct ev_io *w; 578 ev_io *w;
452 579
453 while ((w = (struct ev_io *)anfds [fd].head)) 580 while ((w = (ev_io *)anfds [fd].head))
454 { 581 {
455 ev_io_stop (EV_A_ w); 582 ev_io_stop (EV_A_ w);
456 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 583 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
457 } 584 }
458} 585}
459 586
460static int 587int inline_size
461fd_valid (int fd) 588fd_valid (int fd)
462{ 589{
463#ifdef _WIN32 590#ifdef _WIN32
464 return _get_osfhandle (fd) != -1; 591 return _get_osfhandle (fd) != -1;
465#else 592#else
466 return fcntl (fd, F_GETFD) != -1; 593 return fcntl (fd, F_GETFD) != -1;
467#endif 594#endif
468} 595}
469 596
470/* called on EBADF to verify fds */ 597/* called on EBADF to verify fds */
471static void 598static void noinline
472fd_ebadf (EV_P) 599fd_ebadf (EV_P)
473{ 600{
474 int fd; 601 int fd;
475 602
476 for (fd = 0; fd < anfdmax; ++fd) 603 for (fd = 0; fd < anfdmax; ++fd)
… …
478 if (!fd_valid (fd) == -1 && errno == EBADF) 605 if (!fd_valid (fd) == -1 && errno == EBADF)
479 fd_kill (EV_A_ fd); 606 fd_kill (EV_A_ fd);
480} 607}
481 608
482/* called on ENOMEM in select/poll to kill some fds and retry */ 609/* called on ENOMEM in select/poll to kill some fds and retry */
483static void 610static void noinline
484fd_enomem (EV_P) 611fd_enomem (EV_P)
485{ 612{
486 int fd; 613 int fd;
487 614
488 for (fd = anfdmax; fd--; ) 615 for (fd = anfdmax; fd--; )
… …
491 fd_kill (EV_A_ fd); 618 fd_kill (EV_A_ fd);
492 return; 619 return;
493 } 620 }
494} 621}
495 622
496/* usually called after fork if method needs to re-arm all fds from scratch */ 623/* usually called after fork if backend needs to re-arm all fds from scratch */
497static void 624static void noinline
498fd_rearm_all (EV_P) 625fd_rearm_all (EV_P)
499{ 626{
500 int fd; 627 int fd;
501 628
502 /* this should be highly optimised to not do anything but set a flag */
503 for (fd = 0; fd < anfdmax; ++fd) 629 for (fd = 0; fd < anfdmax; ++fd)
504 if (anfds [fd].events) 630 if (anfds [fd].events)
505 { 631 {
506 anfds [fd].events = 0; 632 anfds [fd].events = 0;
507 fd_change (EV_A_ fd); 633 fd_change (EV_A_ fd, EV_IOFDSET);
508 } 634 }
509} 635}
510 636
511/*****************************************************************************/ 637/*****************************************************************************/
512 638
513static void 639void inline_speed
514upheap (WT *heap, int k) 640upheap (WT *heap, int k)
515{ 641{
516 WT w = heap [k]; 642 WT w = heap [k];
517 643
518 while (k && heap [k >> 1]->at > w->at) 644 while (k)
519 { 645 {
646 int p = (k - 1) >> 1;
647
648 if (heap [p]->at <= w->at)
649 break;
650
520 heap [k] = heap [k >> 1]; 651 heap [k] = heap [p];
521 ((W)heap [k])->active = k + 1; 652 ((W)heap [k])->active = k + 1;
522 k >>= 1; 653 k = p;
523 } 654 }
524 655
525 heap [k] = w; 656 heap [k] = w;
526 ((W)heap [k])->active = k + 1; 657 ((W)heap [k])->active = k + 1;
527
528} 658}
529 659
530static void 660void inline_speed
531downheap (WT *heap, int N, int k) 661downheap (WT *heap, int N, int k)
532{ 662{
533 WT w = heap [k]; 663 WT w = heap [k];
534 664
535 while (k < (N >> 1)) 665 for (;;)
536 { 666 {
537 int j = k << 1; 667 int c = (k << 1) + 1;
538 668
539 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 669 if (c >= N)
540 ++j;
541
542 if (w->at <= heap [j]->at)
543 break; 670 break;
544 671
672 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
673 ? 1 : 0;
674
675 if (w->at <= heap [c]->at)
676 break;
677
545 heap [k] = heap [j]; 678 heap [k] = heap [c];
546 ((W)heap [k])->active = k + 1; 679 ((W)heap [k])->active = k + 1;
680
547 k = j; 681 k = c;
548 } 682 }
549 683
550 heap [k] = w; 684 heap [k] = w;
551 ((W)heap [k])->active = k + 1; 685 ((W)heap [k])->active = k + 1;
552} 686}
553 687
554inline void 688void inline_size
555adjustheap (WT *heap, int N, int k) 689adjustheap (WT *heap, int N, int k)
556{ 690{
557 upheap (heap, k); 691 upheap (heap, k);
558 downheap (heap, N, k); 692 downheap (heap, N, k);
559} 693}
… …
569static ANSIG *signals; 703static ANSIG *signals;
570static int signalmax; 704static int signalmax;
571 705
572static int sigpipe [2]; 706static int sigpipe [2];
573static sig_atomic_t volatile gotsig; 707static sig_atomic_t volatile gotsig;
574static struct ev_io sigev; 708static ev_io sigev;
575 709
576static void 710void inline_size
577signals_init (ANSIG *base, int count) 711signals_init (ANSIG *base, int count)
578{ 712{
579 while (count--) 713 while (count--)
580 { 714 {
581 base->head = 0; 715 base->head = 0;
… …
601 write (sigpipe [1], &signum, 1); 735 write (sigpipe [1], &signum, 1);
602 errno = old_errno; 736 errno = old_errno;
603 } 737 }
604} 738}
605 739
606void 740void noinline
607ev_feed_signal_event (EV_P_ int signum) 741ev_feed_signal_event (EV_P_ int signum)
608{ 742{
609 WL w; 743 WL w;
610 744
611#if EV_MULTIPLICITY 745#if EV_MULTIPLICITY
612 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 746 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
613#endif 747#endif
614 748
615 --signum; 749 --signum;
616 750
617 if (signum < 0 || signum >= signalmax) 751 if (signum < 0 || signum >= signalmax)
… …
622 for (w = signals [signum].head; w; w = w->next) 756 for (w = signals [signum].head; w; w = w->next)
623 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 757 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
624} 758}
625 759
626static void 760static void
627sigcb (EV_P_ struct ev_io *iow, int revents) 761sigcb (EV_P_ ev_io *iow, int revents)
628{ 762{
629 int signum; 763 int signum;
630 764
631 read (sigpipe [0], &revents, 1); 765 read (sigpipe [0], &revents, 1);
632 gotsig = 0; 766 gotsig = 0;
… …
634 for (signum = signalmax; signum--; ) 768 for (signum = signalmax; signum--; )
635 if (signals [signum].gotsig) 769 if (signals [signum].gotsig)
636 ev_feed_signal_event (EV_A_ signum + 1); 770 ev_feed_signal_event (EV_A_ signum + 1);
637} 771}
638 772
639inline void 773void inline_speed
640fd_intern (int fd) 774fd_intern (int fd)
641{ 775{
642#ifdef _WIN32 776#ifdef _WIN32
643 int arg = 1; 777 int arg = 1;
644 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); 778 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
… …
646 fcntl (fd, F_SETFD, FD_CLOEXEC); 780 fcntl (fd, F_SETFD, FD_CLOEXEC);
647 fcntl (fd, F_SETFL, O_NONBLOCK); 781 fcntl (fd, F_SETFL, O_NONBLOCK);
648#endif 782#endif
649} 783}
650 784
651static void 785static void noinline
652siginit (EV_P) 786siginit (EV_P)
653{ 787{
654 fd_intern (sigpipe [0]); 788 fd_intern (sigpipe [0]);
655 fd_intern (sigpipe [1]); 789 fd_intern (sigpipe [1]);
656 790
… …
659 ev_unref (EV_A); /* child watcher should not keep loop alive */ 793 ev_unref (EV_A); /* child watcher should not keep loop alive */
660} 794}
661 795
662/*****************************************************************************/ 796/*****************************************************************************/
663 797
664static struct ev_child *childs [PID_HASHSIZE]; 798static WL childs [EV_PID_HASHSIZE];
665 799
666#ifndef _WIN32 800#ifndef _WIN32
667 801
668static struct ev_signal childev; 802static ev_signal childev;
803
804void inline_speed
805child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
806{
807 ev_child *w;
808
809 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
810 if (w->pid == pid || !w->pid)
811 {
812 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
813 w->rpid = pid;
814 w->rstatus = status;
815 ev_feed_event (EV_A_ (W)w, EV_CHILD);
816 }
817}
669 818
670#ifndef WCONTINUED 819#ifndef WCONTINUED
671# define WCONTINUED 0 820# define WCONTINUED 0
672#endif 821#endif
673 822
674static void 823static void
675child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
676{
677 struct ev_child *w;
678
679 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
680 if (w->pid == pid || !w->pid)
681 {
682 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
683 w->rpid = pid;
684 w->rstatus = status;
685 ev_feed_event (EV_A_ (W)w, EV_CHILD);
686 }
687}
688
689static void
690childcb (EV_P_ struct ev_signal *sw, int revents) 824childcb (EV_P_ ev_signal *sw, int revents)
691{ 825{
692 int pid, status; 826 int pid, status;
693 827
828 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
694 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 829 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
695 { 830 if (!WCONTINUED
831 || errno != EINVAL
832 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
833 return;
834
696 /* make sure we are called again until all childs have been reaped */ 835 /* make sure we are called again until all childs have been reaped */
836 /* we need to do it this way so that the callback gets called before we continue */
697 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 837 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
698 838
699 child_reap (EV_A_ sw, pid, pid, status); 839 child_reap (EV_A_ sw, pid, pid, status);
840 if (EV_PID_HASHSIZE > 1)
700 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 841 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
701 }
702} 842}
703 843
704#endif 844#endif
705 845
706/*****************************************************************************/ 846/*****************************************************************************/
707 847
848#if EV_USE_PORT
849# include "ev_port.c"
850#endif
708#if EV_USE_KQUEUE 851#if EV_USE_KQUEUE
709# include "ev_kqueue.c" 852# include "ev_kqueue.c"
710#endif 853#endif
711#if EV_USE_EPOLL 854#if EV_USE_EPOLL
712# include "ev_epoll.c" 855# include "ev_epoll.c"
… …
729{ 872{
730 return EV_VERSION_MINOR; 873 return EV_VERSION_MINOR;
731} 874}
732 875
733/* return true if we are running with elevated privileges and should ignore env variables */ 876/* return true if we are running with elevated privileges and should ignore env variables */
734static int 877int inline_size
735enable_secure (void) 878enable_secure (void)
736{ 879{
737#ifdef _WIN32 880#ifdef _WIN32
738 return 0; 881 return 0;
739#else 882#else
740 return getuid () != geteuid () 883 return getuid () != geteuid ()
741 || getgid () != getegid (); 884 || getgid () != getegid ();
742#endif 885#endif
743} 886}
744 887
745int 888unsigned int
746ev_method (EV_P) 889ev_supported_backends (void)
747{ 890{
748 return method; 891 unsigned int flags = 0;
749}
750 892
751static void 893 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
752loop_init (EV_P_ int methods) 894 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
895 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
896 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
897 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
898
899 return flags;
900}
901
902unsigned int
903ev_recommended_backends (void)
753{ 904{
754 if (!method) 905 unsigned int flags = ev_supported_backends ();
906
907#ifndef __NetBSD__
908 /* kqueue is borked on everything but netbsd apparently */
909 /* it usually doesn't work correctly on anything but sockets and pipes */
910 flags &= ~EVBACKEND_KQUEUE;
911#endif
912#ifdef __APPLE__
913 // flags &= ~EVBACKEND_KQUEUE; for documentation
914 flags &= ~EVBACKEND_POLL;
915#endif
916
917 return flags;
918}
919
920unsigned int
921ev_embeddable_backends (void)
922{
923 return EVBACKEND_EPOLL
924 | EVBACKEND_KQUEUE
925 | EVBACKEND_PORT;
926}
927
928unsigned int
929ev_backend (EV_P)
930{
931 return backend;
932}
933
934unsigned int
935ev_loop_count (EV_P)
936{
937 return loop_count;
938}
939
940static void noinline
941loop_init (EV_P_ unsigned int flags)
942{
943 if (!backend)
755 { 944 {
756#if EV_USE_MONOTONIC 945#if EV_USE_MONOTONIC
757 { 946 {
758 struct timespec ts; 947 struct timespec ts;
759 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 948 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
764 ev_rt_now = ev_time (); 953 ev_rt_now = ev_time ();
765 mn_now = get_clock (); 954 mn_now = get_clock ();
766 now_floor = mn_now; 955 now_floor = mn_now;
767 rtmn_diff = ev_rt_now - mn_now; 956 rtmn_diff = ev_rt_now - mn_now;
768 957
769 if (methods == EVMETHOD_AUTO) 958 /* pid check not overridable via env */
770 if (!enable_secure () && getenv ("LIBEV_METHODS")) 959#ifndef _WIN32
960 if (flags & EVFLAG_FORKCHECK)
961 curpid = getpid ();
962#endif
963
964 if (!(flags & EVFLAG_NOENV)
965 && !enable_secure ()
966 && getenv ("LIBEV_FLAGS"))
771 methods = atoi (getenv ("LIBEV_METHODS")); 967 flags = atoi (getenv ("LIBEV_FLAGS"));
772 else
773 methods = EVMETHOD_ANY;
774 968
775 method = 0; 969 if (!(flags & 0x0000ffffUL))
970 flags |= ev_recommended_backends ();
971
972 backend = 0;
973 backend_fd = -1;
974#if EV_USE_INOTIFY
975 fs_fd = -2;
976#endif
977
978#if EV_USE_PORT
979 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
980#endif
776#if EV_USE_KQUEUE 981#if EV_USE_KQUEUE
777 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 982 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
778#endif 983#endif
779#if EV_USE_EPOLL 984#if EV_USE_EPOLL
780 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 985 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
781#endif 986#endif
782#if EV_USE_POLL 987#if EV_USE_POLL
783 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 988 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
784#endif 989#endif
785#if EV_USE_SELECT 990#if EV_USE_SELECT
786 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 991 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
787#endif 992#endif
788 993
789 ev_init (&sigev, sigcb); 994 ev_init (&sigev, sigcb);
790 ev_set_priority (&sigev, EV_MAXPRI); 995 ev_set_priority (&sigev, EV_MAXPRI);
791 } 996 }
792} 997}
793 998
794void 999static void noinline
795loop_destroy (EV_P) 1000loop_destroy (EV_P)
796{ 1001{
797 int i; 1002 int i;
798 1003
1004#if EV_USE_INOTIFY
1005 if (fs_fd >= 0)
1006 close (fs_fd);
1007#endif
1008
1009 if (backend_fd >= 0)
1010 close (backend_fd);
1011
1012#if EV_USE_PORT
1013 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1014#endif
799#if EV_USE_KQUEUE 1015#if EV_USE_KQUEUE
800 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1016 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
801#endif 1017#endif
802#if EV_USE_EPOLL 1018#if EV_USE_EPOLL
803 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1019 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
804#endif 1020#endif
805#if EV_USE_POLL 1021#if EV_USE_POLL
806 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1022 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
807#endif 1023#endif
808#if EV_USE_SELECT 1024#if EV_USE_SELECT
809 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1025 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
810#endif 1026#endif
811 1027
812 for (i = NUMPRI; i--; ) 1028 for (i = NUMPRI; i--; )
1029 {
813 array_free (pending, [i]); 1030 array_free (pending, [i]);
1031#if EV_IDLE_ENABLE
1032 array_free (idle, [i]);
1033#endif
1034 }
814 1035
815 /* have to use the microsoft-never-gets-it-right macro */ 1036 /* have to use the microsoft-never-gets-it-right macro */
816 array_free (fdchange, EMPTY); 1037 array_free (fdchange, EMPTY);
817 array_free (timer, EMPTY); 1038 array_free (timer, EMPTY);
818#if EV_PERIODICS 1039#if EV_PERIODIC_ENABLE
819 array_free (periodic, EMPTY); 1040 array_free (periodic, EMPTY);
820#endif 1041#endif
821 array_free (idle, EMPTY);
822 array_free (prepare, EMPTY); 1042 array_free (prepare, EMPTY);
823 array_free (check, EMPTY); 1043 array_free (check, EMPTY);
824 1044
825 method = 0; 1045 backend = 0;
826} 1046}
827 1047
828static void 1048void inline_size infy_fork (EV_P);
1049
1050void inline_size
829loop_fork (EV_P) 1051loop_fork (EV_P)
830{ 1052{
1053#if EV_USE_PORT
1054 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1055#endif
1056#if EV_USE_KQUEUE
1057 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1058#endif
831#if EV_USE_EPOLL 1059#if EV_USE_EPOLL
832 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1060 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
833#endif 1061#endif
834#if EV_USE_KQUEUE 1062#if EV_USE_INOTIFY
835 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1063 infy_fork (EV_A);
836#endif 1064#endif
837 1065
838 if (ev_is_active (&sigev)) 1066 if (ev_is_active (&sigev))
839 { 1067 {
840 /* default loop */ 1068 /* default loop */
… …
853 postfork = 0; 1081 postfork = 0;
854} 1082}
855 1083
856#if EV_MULTIPLICITY 1084#if EV_MULTIPLICITY
857struct ev_loop * 1085struct ev_loop *
858ev_loop_new (int methods) 1086ev_loop_new (unsigned int flags)
859{ 1087{
860 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1088 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
861 1089
862 memset (loop, 0, sizeof (struct ev_loop)); 1090 memset (loop, 0, sizeof (struct ev_loop));
863 1091
864 loop_init (EV_A_ methods); 1092 loop_init (EV_A_ flags);
865 1093
866 if (ev_method (EV_A)) 1094 if (ev_backend (EV_A))
867 return loop; 1095 return loop;
868 1096
869 return 0; 1097 return 0;
870} 1098}
871 1099
… …
884 1112
885#endif 1113#endif
886 1114
887#if EV_MULTIPLICITY 1115#if EV_MULTIPLICITY
888struct ev_loop * 1116struct ev_loop *
1117ev_default_loop_init (unsigned int flags)
889#else 1118#else
890int 1119int
1120ev_default_loop (unsigned int flags)
891#endif 1121#endif
892ev_default_loop (int methods)
893{ 1122{
894 if (sigpipe [0] == sigpipe [1]) 1123 if (sigpipe [0] == sigpipe [1])
895 if (pipe (sigpipe)) 1124 if (pipe (sigpipe))
896 return 0; 1125 return 0;
897 1126
898 if (!default_loop) 1127 if (!ev_default_loop_ptr)
899 { 1128 {
900#if EV_MULTIPLICITY 1129#if EV_MULTIPLICITY
901 struct ev_loop *loop = default_loop = &default_loop_struct; 1130 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
902#else 1131#else
903 default_loop = 1; 1132 ev_default_loop_ptr = 1;
904#endif 1133#endif
905 1134
906 loop_init (EV_A_ methods); 1135 loop_init (EV_A_ flags);
907 1136
908 if (ev_method (EV_A)) 1137 if (ev_backend (EV_A))
909 { 1138 {
910 siginit (EV_A); 1139 siginit (EV_A);
911 1140
912#ifndef _WIN32 1141#ifndef _WIN32
913 ev_signal_init (&childev, childcb, SIGCHLD); 1142 ev_signal_init (&childev, childcb, SIGCHLD);
… …
915 ev_signal_start (EV_A_ &childev); 1144 ev_signal_start (EV_A_ &childev);
916 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1145 ev_unref (EV_A); /* child watcher should not keep loop alive */
917#endif 1146#endif
918 } 1147 }
919 else 1148 else
920 default_loop = 0; 1149 ev_default_loop_ptr = 0;
921 } 1150 }
922 1151
923 return default_loop; 1152 return ev_default_loop_ptr;
924} 1153}
925 1154
926void 1155void
927ev_default_destroy (void) 1156ev_default_destroy (void)
928{ 1157{
929#if EV_MULTIPLICITY 1158#if EV_MULTIPLICITY
930 struct ev_loop *loop = default_loop; 1159 struct ev_loop *loop = ev_default_loop_ptr;
931#endif 1160#endif
932 1161
933#ifndef _WIN32 1162#ifndef _WIN32
934 ev_ref (EV_A); /* child watcher */ 1163 ev_ref (EV_A); /* child watcher */
935 ev_signal_stop (EV_A_ &childev); 1164 ev_signal_stop (EV_A_ &childev);
… …
946 1175
947void 1176void
948ev_default_fork (void) 1177ev_default_fork (void)
949{ 1178{
950#if EV_MULTIPLICITY 1179#if EV_MULTIPLICITY
951 struct ev_loop *loop = default_loop; 1180 struct ev_loop *loop = ev_default_loop_ptr;
952#endif 1181#endif
953 1182
954 if (method) 1183 if (backend)
955 postfork = 1; 1184 postfork = 1;
956} 1185}
957 1186
958/*****************************************************************************/ 1187/*****************************************************************************/
959 1188
960static int 1189void
961any_pending (EV_P) 1190ev_invoke (EV_P_ void *w, int revents)
962{ 1191{
963 int pri; 1192 EV_CB_INVOKE ((W)w, revents);
964
965 for (pri = NUMPRI; pri--; )
966 if (pendingcnt [pri])
967 return 1;
968
969 return 0;
970} 1193}
971 1194
972static void 1195void inline_speed
973call_pending (EV_P) 1196call_pending (EV_P)
974{ 1197{
975 int pri; 1198 int pri;
976 1199
977 for (pri = NUMPRI; pri--; ) 1200 for (pri = NUMPRI; pri--; )
978 while (pendingcnt [pri]) 1201 while (pendingcnt [pri])
979 { 1202 {
980 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1203 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
981 1204
982 if (p->w) 1205 if (expect_true (p->w))
983 { 1206 {
1207 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1208
984 p->w->pending = 0; 1209 p->w->pending = 0;
985 EV_CB_INVOKE (p->w, p->events); 1210 EV_CB_INVOKE (p->w, p->events);
986 } 1211 }
987 } 1212 }
988} 1213}
989 1214
990static void 1215void inline_size
991timers_reify (EV_P) 1216timers_reify (EV_P)
992{ 1217{
993 while (timercnt && ((WT)timers [0])->at <= mn_now) 1218 while (timercnt && ((WT)timers [0])->at <= mn_now)
994 { 1219 {
995 struct ev_timer *w = timers [0]; 1220 ev_timer *w = (ev_timer *)timers [0];
996 1221
997 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1222 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
998 1223
999 /* first reschedule or stop timer */ 1224 /* first reschedule or stop timer */
1000 if (w->repeat) 1225 if (w->repeat)
1001 { 1226 {
1002 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1227 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1003 1228
1004 ((WT)w)->at += w->repeat; 1229 ((WT)w)->at += w->repeat;
1005 if (((WT)w)->at < mn_now) 1230 if (((WT)w)->at < mn_now)
1006 ((WT)w)->at = mn_now; 1231 ((WT)w)->at = mn_now;
1007 1232
1008 downheap ((WT *)timers, timercnt, 0); 1233 downheap (timers, timercnt, 0);
1009 } 1234 }
1010 else 1235 else
1011 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1236 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
1012 1237
1013 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1238 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1014 } 1239 }
1015} 1240}
1016 1241
1017#if EV_PERIODICS 1242#if EV_PERIODIC_ENABLE
1018static void 1243void inline_size
1019periodics_reify (EV_P) 1244periodics_reify (EV_P)
1020{ 1245{
1021 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1246 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1022 { 1247 {
1023 struct ev_periodic *w = periodics [0]; 1248 ev_periodic *w = (ev_periodic *)periodics [0];
1024 1249
1025 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1250 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1026 1251
1027 /* first reschedule or stop timer */ 1252 /* first reschedule or stop timer */
1028 if (w->reschedule_cb) 1253 if (w->reschedule_cb)
1029 { 1254 {
1030 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1255 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1031
1032 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1256 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1033 downheap ((WT *)periodics, periodiccnt, 0); 1257 downheap (periodics, periodiccnt, 0);
1034 } 1258 }
1035 else if (w->interval) 1259 else if (w->interval)
1036 { 1260 {
1037 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1261 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1262 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1038 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); 1263 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1039 downheap ((WT *)periodics, periodiccnt, 0); 1264 downheap (periodics, periodiccnt, 0);
1040 } 1265 }
1041 else 1266 else
1042 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1267 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1043 1268
1044 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1269 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1045 } 1270 }
1046} 1271}
1047 1272
1048static void 1273static void noinline
1049periodics_reschedule (EV_P) 1274periodics_reschedule (EV_P)
1050{ 1275{
1051 int i; 1276 int i;
1052 1277
1053 /* adjust periodics after time jump */ 1278 /* adjust periodics after time jump */
1054 for (i = 0; i < periodiccnt; ++i) 1279 for (i = 0; i < periodiccnt; ++i)
1055 { 1280 {
1056 struct ev_periodic *w = periodics [i]; 1281 ev_periodic *w = (ev_periodic *)periodics [i];
1057 1282
1058 if (w->reschedule_cb) 1283 if (w->reschedule_cb)
1059 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1284 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1060 else if (w->interval) 1285 else if (w->interval)
1061 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1286 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1062 } 1287 }
1063 1288
1064 /* now rebuild the heap */ 1289 /* now rebuild the heap */
1065 for (i = periodiccnt >> 1; i--; ) 1290 for (i = periodiccnt >> 1; i--; )
1066 downheap ((WT *)periodics, periodiccnt, i); 1291 downheap (periodics, periodiccnt, i);
1067} 1292}
1068#endif 1293#endif
1069 1294
1070inline int 1295#if EV_IDLE_ENABLE
1071time_update_monotonic (EV_P) 1296void inline_size
1297idle_reify (EV_P)
1072{ 1298{
1299 if (expect_false (idleall))
1300 {
1301 int pri;
1302
1303 for (pri = NUMPRI; pri--; )
1304 {
1305 if (pendingcnt [pri])
1306 break;
1307
1308 if (idlecnt [pri])
1309 {
1310 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1311 break;
1312 }
1313 }
1314 }
1315}
1316#endif
1317
1318void inline_speed
1319time_update (EV_P_ ev_tstamp max_block)
1320{
1321 int i;
1322
1323#if EV_USE_MONOTONIC
1324 if (expect_true (have_monotonic))
1325 {
1326 ev_tstamp odiff = rtmn_diff;
1327
1073 mn_now = get_clock (); 1328 mn_now = get_clock ();
1074 1329
1330 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1331 /* interpolate in the meantime */
1075 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1332 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1076 { 1333 {
1077 ev_rt_now = rtmn_diff + mn_now; 1334 ev_rt_now = rtmn_diff + mn_now;
1078 return 0; 1335 return;
1079 } 1336 }
1080 else 1337
1081 {
1082 now_floor = mn_now; 1338 now_floor = mn_now;
1083 ev_rt_now = ev_time (); 1339 ev_rt_now = ev_time ();
1084 return 1;
1085 }
1086}
1087 1340
1088static void 1341 /* loop a few times, before making important decisions.
1089time_update (EV_P) 1342 * on the choice of "4": one iteration isn't enough,
1090{ 1343 * in case we get preempted during the calls to
1091 int i; 1344 * ev_time and get_clock. a second call is almost guaranteed
1092 1345 * to succeed in that case, though. and looping a few more times
1093#if EV_USE_MONOTONIC 1346 * doesn't hurt either as we only do this on time-jumps or
1094 if (expect_true (have_monotonic)) 1347 * in the unlikely event of having been preempted here.
1095 { 1348 */
1096 if (time_update_monotonic (EV_A)) 1349 for (i = 4; --i; )
1097 { 1350 {
1098 ev_tstamp odiff = rtmn_diff;
1099
1100 for (i = 4; --i; ) /* loop a few times, before making important decisions */
1101 {
1102 rtmn_diff = ev_rt_now - mn_now; 1351 rtmn_diff = ev_rt_now - mn_now;
1103 1352
1104 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1353 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1105 return; /* all is well */ 1354 return; /* all is well */
1106 1355
1107 ev_rt_now = ev_time (); 1356 ev_rt_now = ev_time ();
1108 mn_now = get_clock (); 1357 mn_now = get_clock ();
1109 now_floor = mn_now; 1358 now_floor = mn_now;
1110 } 1359 }
1111 1360
1112# if EV_PERIODICS 1361# if EV_PERIODIC_ENABLE
1362 periodics_reschedule (EV_A);
1363# endif
1364 /* no timer adjustment, as the monotonic clock doesn't jump */
1365 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1366 }
1367 else
1368#endif
1369 {
1370 ev_rt_now = ev_time ();
1371
1372 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1373 {
1374#if EV_PERIODIC_ENABLE
1113 periodics_reschedule (EV_A); 1375 periodics_reschedule (EV_A);
1114# endif 1376#endif
1115 /* no timer adjustment, as the monotonic clock doesn't jump */
1116 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1117 }
1118 }
1119 else
1120#endif
1121 {
1122 ev_rt_now = ev_time ();
1123
1124 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1125 {
1126#if EV_PERIODICS
1127 periodics_reschedule (EV_A);
1128#endif
1129
1130 /* adjust timers. this is easy, as the offset is the same for all */ 1377 /* adjust timers. this is easy, as the offset is the same for all of them */
1131 for (i = 0; i < timercnt; ++i) 1378 for (i = 0; i < timercnt; ++i)
1132 ((WT)timers [i])->at += ev_rt_now - mn_now; 1379 ((WT)timers [i])->at += ev_rt_now - mn_now;
1133 } 1380 }
1134 1381
1135 mn_now = ev_rt_now; 1382 mn_now = ev_rt_now;
… …
1151static int loop_done; 1398static int loop_done;
1152 1399
1153void 1400void
1154ev_loop (EV_P_ int flags) 1401ev_loop (EV_P_ int flags)
1155{ 1402{
1156 double block;
1157 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1403 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1404 ? EVUNLOOP_ONE
1405 : EVUNLOOP_CANCEL;
1406
1407 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1158 1408
1159 do 1409 do
1160 { 1410 {
1411#ifndef _WIN32
1412 if (expect_false (curpid)) /* penalise the forking check even more */
1413 if (expect_false (getpid () != curpid))
1414 {
1415 curpid = getpid ();
1416 postfork = 1;
1417 }
1418#endif
1419
1420#if EV_FORK_ENABLE
1421 /* we might have forked, so queue fork handlers */
1422 if (expect_false (postfork))
1423 if (forkcnt)
1424 {
1425 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1426 call_pending (EV_A);
1427 }
1428#endif
1429
1161 /* queue check watchers (and execute them) */ 1430 /* queue prepare watchers (and execute them) */
1162 if (expect_false (preparecnt)) 1431 if (expect_false (preparecnt))
1163 { 1432 {
1164 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1433 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1165 call_pending (EV_A); 1434 call_pending (EV_A);
1166 } 1435 }
1167 1436
1437 if (expect_false (!activecnt))
1438 break;
1439
1168 /* we might have forked, so reify kernel state if necessary */ 1440 /* we might have forked, so reify kernel state if necessary */
1169 if (expect_false (postfork)) 1441 if (expect_false (postfork))
1170 loop_fork (EV_A); 1442 loop_fork (EV_A);
1171 1443
1172 /* update fd-related kernel structures */ 1444 /* update fd-related kernel structures */
1173 fd_reify (EV_A); 1445 fd_reify (EV_A);
1174 1446
1175 /* calculate blocking time */ 1447 /* calculate blocking time */
1448 {
1449 ev_tstamp block;
1176 1450
1177 /* we only need this for !monotonic clock or timers, but as we basically 1451 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1178 always have timers, we just calculate it always */ 1452 block = 0.; /* do not block at all */
1179#if EV_USE_MONOTONIC
1180 if (expect_true (have_monotonic))
1181 time_update_monotonic (EV_A);
1182 else 1453 else
1183#endif
1184 { 1454 {
1185 ev_rt_now = ev_time (); 1455 /* update time to cancel out callback processing overhead */
1186 mn_now = ev_rt_now; 1456 time_update (EV_A_ 1e100);
1187 }
1188 1457
1189 if (flags & EVLOOP_NONBLOCK || idlecnt)
1190 block = 0.;
1191 else
1192 {
1193 block = MAX_BLOCKTIME; 1458 block = MAX_BLOCKTIME;
1194 1459
1195 if (timercnt) 1460 if (timercnt)
1196 { 1461 {
1197 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1462 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1198 if (block > to) block = to; 1463 if (block > to) block = to;
1199 } 1464 }
1200 1465
1201#if EV_PERIODICS 1466#if EV_PERIODIC_ENABLE
1202 if (periodiccnt) 1467 if (periodiccnt)
1203 { 1468 {
1204 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1469 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1205 if (block > to) block = to; 1470 if (block > to) block = to;
1206 } 1471 }
1207#endif 1472#endif
1208 1473
1209 if (block < 0.) block = 0.; 1474 if (expect_false (block < 0.)) block = 0.;
1210 } 1475 }
1211 1476
1477 ++loop_count;
1212 method_poll (EV_A_ block); 1478 backend_poll (EV_A_ block);
1213 1479
1214 /* update ev_rt_now, do magic */ 1480 /* update ev_rt_now, do magic */
1215 time_update (EV_A); 1481 time_update (EV_A_ block);
1482 }
1216 1483
1217 /* queue pending timers and reschedule them */ 1484 /* queue pending timers and reschedule them */
1218 timers_reify (EV_A); /* relative timers called last */ 1485 timers_reify (EV_A); /* relative timers called last */
1219#if EV_PERIODICS 1486#if EV_PERIODIC_ENABLE
1220 periodics_reify (EV_A); /* absolute timers called first */ 1487 periodics_reify (EV_A); /* absolute timers called first */
1221#endif 1488#endif
1222 1489
1490#if EV_IDLE_ENABLE
1223 /* queue idle watchers unless io or timers are pending */ 1491 /* queue idle watchers unless other events are pending */
1224 if (idlecnt && !any_pending (EV_A)) 1492 idle_reify (EV_A);
1225 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1493#endif
1226 1494
1227 /* queue check watchers, to be executed first */ 1495 /* queue check watchers, to be executed first */
1228 if (checkcnt) 1496 if (expect_false (checkcnt))
1229 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1497 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1230 1498
1231 call_pending (EV_A); 1499 call_pending (EV_A);
1500
1232 } 1501 }
1233 while (activecnt && !loop_done); 1502 while (expect_true (activecnt && !loop_done));
1234 1503
1235 if (loop_done != 2) 1504 if (loop_done == EVUNLOOP_ONE)
1236 loop_done = 0; 1505 loop_done = EVUNLOOP_CANCEL;
1237} 1506}
1238 1507
1239void 1508void
1240ev_unloop (EV_P_ int how) 1509ev_unloop (EV_P_ int how)
1241{ 1510{
1242 loop_done = how; 1511 loop_done = how;
1243} 1512}
1244 1513
1245/*****************************************************************************/ 1514/*****************************************************************************/
1246 1515
1247inline void 1516void inline_size
1248wlist_add (WL *head, WL elem) 1517wlist_add (WL *head, WL elem)
1249{ 1518{
1250 elem->next = *head; 1519 elem->next = *head;
1251 *head = elem; 1520 *head = elem;
1252} 1521}
1253 1522
1254inline void 1523void inline_size
1255wlist_del (WL *head, WL elem) 1524wlist_del (WL *head, WL elem)
1256{ 1525{
1257 while (*head) 1526 while (*head)
1258 { 1527 {
1259 if (*head == elem) 1528 if (*head == elem)
… …
1264 1533
1265 head = &(*head)->next; 1534 head = &(*head)->next;
1266 } 1535 }
1267} 1536}
1268 1537
1269inline void 1538void inline_speed
1270ev_clear_pending (EV_P_ W w) 1539clear_pending (EV_P_ W w)
1271{ 1540{
1272 if (w->pending) 1541 if (w->pending)
1273 { 1542 {
1274 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1543 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1275 w->pending = 0; 1544 w->pending = 0;
1276 } 1545 }
1277} 1546}
1278 1547
1279inline void 1548int
1549ev_clear_pending (EV_P_ void *w)
1550{
1551 W w_ = (W)w;
1552 int pending = w_->pending;
1553
1554 if (expect_true (pending))
1555 {
1556 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1557 w_->pending = 0;
1558 p->w = 0;
1559 return p->events;
1560 }
1561 else
1562 return 0;
1563}
1564
1565void inline_size
1566pri_adjust (EV_P_ W w)
1567{
1568 int pri = w->priority;
1569 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1570 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1571 w->priority = pri;
1572}
1573
1574void inline_speed
1280ev_start (EV_P_ W w, int active) 1575ev_start (EV_P_ W w, int active)
1281{ 1576{
1282 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1577 pri_adjust (EV_A_ w);
1283 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1284
1285 w->active = active; 1578 w->active = active;
1286 ev_ref (EV_A); 1579 ev_ref (EV_A);
1287} 1580}
1288 1581
1289inline void 1582void inline_size
1290ev_stop (EV_P_ W w) 1583ev_stop (EV_P_ W w)
1291{ 1584{
1292 ev_unref (EV_A); 1585 ev_unref (EV_A);
1293 w->active = 0; 1586 w->active = 0;
1294} 1587}
1295 1588
1296/*****************************************************************************/ 1589/*****************************************************************************/
1297 1590
1298void 1591void noinline
1299ev_io_start (EV_P_ struct ev_io *w) 1592ev_io_start (EV_P_ ev_io *w)
1300{ 1593{
1301 int fd = w->fd; 1594 int fd = w->fd;
1302 1595
1303 if (ev_is_active (w)) 1596 if (expect_false (ev_is_active (w)))
1304 return; 1597 return;
1305 1598
1306 assert (("ev_io_start called with negative fd", fd >= 0)); 1599 assert (("ev_io_start called with negative fd", fd >= 0));
1307 1600
1308 ev_start (EV_A_ (W)w, 1); 1601 ev_start (EV_A_ (W)w, 1);
1309 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1602 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1310 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1603 wlist_add (&anfds[fd].head, (WL)w);
1311 1604
1312 fd_change (EV_A_ fd); 1605 fd_change (EV_A_ fd, w->events & EV_IOFDSET);
1606 w->events &= ~ EV_IOFDSET;
1313} 1607}
1314 1608
1315void 1609void noinline
1316ev_io_stop (EV_P_ struct ev_io *w) 1610ev_io_stop (EV_P_ ev_io *w)
1317{ 1611{
1318 ev_clear_pending (EV_A_ (W)w); 1612 clear_pending (EV_A_ (W)w);
1319 if (!ev_is_active (w)) 1613 if (expect_false (!ev_is_active (w)))
1320 return; 1614 return;
1321 1615
1322 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 1616 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1323 1617
1324 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1618 wlist_del (&anfds[w->fd].head, (WL)w);
1325 ev_stop (EV_A_ (W)w); 1619 ev_stop (EV_A_ (W)w);
1326 1620
1327 fd_change (EV_A_ w->fd); 1621 fd_change (EV_A_ w->fd, 0);
1328} 1622}
1329 1623
1330void 1624void noinline
1331ev_timer_start (EV_P_ struct ev_timer *w) 1625ev_timer_start (EV_P_ ev_timer *w)
1332{ 1626{
1333 if (ev_is_active (w)) 1627 if (expect_false (ev_is_active (w)))
1334 return; 1628 return;
1335 1629
1336 ((WT)w)->at += mn_now; 1630 ((WT)w)->at += mn_now;
1337 1631
1338 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1632 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1339 1633
1340 ev_start (EV_A_ (W)w, ++timercnt); 1634 ev_start (EV_A_ (W)w, ++timercnt);
1341 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1635 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1342 timers [timercnt - 1] = w; 1636 timers [timercnt - 1] = (WT)w;
1343 upheap ((WT *)timers, timercnt - 1); 1637 upheap (timers, timercnt - 1);
1344 1638
1345 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1639 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1346} 1640}
1347 1641
1348void 1642void noinline
1349ev_timer_stop (EV_P_ struct ev_timer *w) 1643ev_timer_stop (EV_P_ ev_timer *w)
1350{ 1644{
1351 ev_clear_pending (EV_A_ (W)w); 1645 clear_pending (EV_A_ (W)w);
1352 if (!ev_is_active (w)) 1646 if (expect_false (!ev_is_active (w)))
1353 return; 1647 return;
1354 1648
1355 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1649 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1356 1650
1357 if (((W)w)->active < timercnt--) 1651 {
1652 int active = ((W)w)->active;
1653
1654 if (expect_true (--active < --timercnt))
1358 { 1655 {
1359 timers [((W)w)->active - 1] = timers [timercnt]; 1656 timers [active] = timers [timercnt];
1360 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1657 adjustheap (timers, timercnt, active);
1361 } 1658 }
1659 }
1362 1660
1363 ((WT)w)->at -= mn_now; 1661 ((WT)w)->at -= mn_now;
1364 1662
1365 ev_stop (EV_A_ (W)w); 1663 ev_stop (EV_A_ (W)w);
1366} 1664}
1367 1665
1368void 1666void noinline
1369ev_timer_again (EV_P_ struct ev_timer *w) 1667ev_timer_again (EV_P_ ev_timer *w)
1370{ 1668{
1371 if (ev_is_active (w)) 1669 if (ev_is_active (w))
1372 { 1670 {
1373 if (w->repeat) 1671 if (w->repeat)
1374 { 1672 {
1375 ((WT)w)->at = mn_now + w->repeat; 1673 ((WT)w)->at = mn_now + w->repeat;
1376 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1674 adjustheap (timers, timercnt, ((W)w)->active - 1);
1377 } 1675 }
1378 else 1676 else
1379 ev_timer_stop (EV_A_ w); 1677 ev_timer_stop (EV_A_ w);
1380 } 1678 }
1381 else if (w->repeat) 1679 else if (w->repeat)
1680 {
1681 w->at = w->repeat;
1382 ev_timer_start (EV_A_ w); 1682 ev_timer_start (EV_A_ w);
1683 }
1383} 1684}
1384 1685
1385#if EV_PERIODICS 1686#if EV_PERIODIC_ENABLE
1386void 1687void noinline
1387ev_periodic_start (EV_P_ struct ev_periodic *w) 1688ev_periodic_start (EV_P_ ev_periodic *w)
1388{ 1689{
1389 if (ev_is_active (w)) 1690 if (expect_false (ev_is_active (w)))
1390 return; 1691 return;
1391 1692
1392 if (w->reschedule_cb) 1693 if (w->reschedule_cb)
1393 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1694 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1394 else if (w->interval) 1695 else if (w->interval)
1395 { 1696 {
1396 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1697 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1397 /* this formula differs from the one in periodic_reify because we do not always round up */ 1698 /* this formula differs from the one in periodic_reify because we do not always round up */
1398 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1699 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1399 } 1700 }
1701 else
1702 ((WT)w)->at = w->offset;
1400 1703
1401 ev_start (EV_A_ (W)w, ++periodiccnt); 1704 ev_start (EV_A_ (W)w, ++periodiccnt);
1402 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1705 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1403 periodics [periodiccnt - 1] = w; 1706 periodics [periodiccnt - 1] = (WT)w;
1404 upheap ((WT *)periodics, periodiccnt - 1); 1707 upheap (periodics, periodiccnt - 1);
1405 1708
1406 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1709 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1407} 1710}
1408 1711
1409void 1712void noinline
1410ev_periodic_stop (EV_P_ struct ev_periodic *w) 1713ev_periodic_stop (EV_P_ ev_periodic *w)
1411{ 1714{
1412 ev_clear_pending (EV_A_ (W)w); 1715 clear_pending (EV_A_ (W)w);
1413 if (!ev_is_active (w)) 1716 if (expect_false (!ev_is_active (w)))
1414 return; 1717 return;
1415 1718
1416 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1719 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1417 1720
1418 if (((W)w)->active < periodiccnt--) 1721 {
1722 int active = ((W)w)->active;
1723
1724 if (expect_true (--active < --periodiccnt))
1419 { 1725 {
1420 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1726 periodics [active] = periodics [periodiccnt];
1421 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1727 adjustheap (periodics, periodiccnt, active);
1422 } 1728 }
1729 }
1423 1730
1424 ev_stop (EV_A_ (W)w); 1731 ev_stop (EV_A_ (W)w);
1425} 1732}
1426 1733
1427void 1734void noinline
1428ev_periodic_again (EV_P_ struct ev_periodic *w) 1735ev_periodic_again (EV_P_ ev_periodic *w)
1429{ 1736{
1430 /* TODO: use adjustheap and recalculation */ 1737 /* TODO: use adjustheap and recalculation */
1431 ev_periodic_stop (EV_A_ w); 1738 ev_periodic_stop (EV_A_ w);
1432 ev_periodic_start (EV_A_ w); 1739 ev_periodic_start (EV_A_ w);
1433} 1740}
1434#endif 1741#endif
1435 1742
1436void
1437ev_idle_start (EV_P_ struct ev_idle *w)
1438{
1439 if (ev_is_active (w))
1440 return;
1441
1442 ev_start (EV_A_ (W)w, ++idlecnt);
1443 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1444 idles [idlecnt - 1] = w;
1445}
1446
1447void
1448ev_idle_stop (EV_P_ struct ev_idle *w)
1449{
1450 ev_clear_pending (EV_A_ (W)w);
1451 if (!ev_is_active (w))
1452 return;
1453
1454 idles [((W)w)->active - 1] = idles [--idlecnt];
1455 ev_stop (EV_A_ (W)w);
1456}
1457
1458void
1459ev_prepare_start (EV_P_ struct ev_prepare *w)
1460{
1461 if (ev_is_active (w))
1462 return;
1463
1464 ev_start (EV_A_ (W)w, ++preparecnt);
1465 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1466 prepares [preparecnt - 1] = w;
1467}
1468
1469void
1470ev_prepare_stop (EV_P_ struct ev_prepare *w)
1471{
1472 ev_clear_pending (EV_A_ (W)w);
1473 if (!ev_is_active (w))
1474 return;
1475
1476 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1477 ev_stop (EV_A_ (W)w);
1478}
1479
1480void
1481ev_check_start (EV_P_ struct ev_check *w)
1482{
1483 if (ev_is_active (w))
1484 return;
1485
1486 ev_start (EV_A_ (W)w, ++checkcnt);
1487 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1488 checks [checkcnt - 1] = w;
1489}
1490
1491void
1492ev_check_stop (EV_P_ struct ev_check *w)
1493{
1494 ev_clear_pending (EV_A_ (W)w);
1495 if (!ev_is_active (w))
1496 return;
1497
1498 checks [((W)w)->active - 1] = checks [--checkcnt];
1499 ev_stop (EV_A_ (W)w);
1500}
1501
1502#ifndef SA_RESTART 1743#ifndef SA_RESTART
1503# define SA_RESTART 0 1744# define SA_RESTART 0
1504#endif 1745#endif
1505 1746
1506void 1747void noinline
1507ev_signal_start (EV_P_ struct ev_signal *w) 1748ev_signal_start (EV_P_ ev_signal *w)
1508{ 1749{
1509#if EV_MULTIPLICITY 1750#if EV_MULTIPLICITY
1510 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1751 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1511#endif 1752#endif
1512 if (ev_is_active (w)) 1753 if (expect_false (ev_is_active (w)))
1513 return; 1754 return;
1514 1755
1515 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1756 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1516 1757
1758 {
1759#ifndef _WIN32
1760 sigset_t full, prev;
1761 sigfillset (&full);
1762 sigprocmask (SIG_SETMASK, &full, &prev);
1763#endif
1764
1765 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1766
1767#ifndef _WIN32
1768 sigprocmask (SIG_SETMASK, &prev, 0);
1769#endif
1770 }
1771
1517 ev_start (EV_A_ (W)w, 1); 1772 ev_start (EV_A_ (W)w, 1);
1518 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1519 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1773 wlist_add (&signals [w->signum - 1].head, (WL)w);
1520 1774
1521 if (!((WL)w)->next) 1775 if (!((WL)w)->next)
1522 { 1776 {
1523#if _WIN32 1777#if _WIN32
1524 signal (w->signum, sighandler); 1778 signal (w->signum, sighandler);
… …
1530 sigaction (w->signum, &sa, 0); 1784 sigaction (w->signum, &sa, 0);
1531#endif 1785#endif
1532 } 1786 }
1533} 1787}
1534 1788
1535void 1789void noinline
1536ev_signal_stop (EV_P_ struct ev_signal *w) 1790ev_signal_stop (EV_P_ ev_signal *w)
1537{ 1791{
1538 ev_clear_pending (EV_A_ (W)w); 1792 clear_pending (EV_A_ (W)w);
1539 if (!ev_is_active (w)) 1793 if (expect_false (!ev_is_active (w)))
1540 return; 1794 return;
1541 1795
1542 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1796 wlist_del (&signals [w->signum - 1].head, (WL)w);
1543 ev_stop (EV_A_ (W)w); 1797 ev_stop (EV_A_ (W)w);
1544 1798
1545 if (!signals [w->signum - 1].head) 1799 if (!signals [w->signum - 1].head)
1546 signal (w->signum, SIG_DFL); 1800 signal (w->signum, SIG_DFL);
1547} 1801}
1548 1802
1549void 1803void
1550ev_child_start (EV_P_ struct ev_child *w) 1804ev_child_start (EV_P_ ev_child *w)
1551{ 1805{
1552#if EV_MULTIPLICITY 1806#if EV_MULTIPLICITY
1553 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1807 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1554#endif 1808#endif
1555 if (ev_is_active (w)) 1809 if (expect_false (ev_is_active (w)))
1556 return; 1810 return;
1557 1811
1558 ev_start (EV_A_ (W)w, 1); 1812 ev_start (EV_A_ (W)w, 1);
1559 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1813 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1560} 1814}
1561 1815
1562void 1816void
1563ev_child_stop (EV_P_ struct ev_child *w) 1817ev_child_stop (EV_P_ ev_child *w)
1564{ 1818{
1565 ev_clear_pending (EV_A_ (W)w); 1819 clear_pending (EV_A_ (W)w);
1566 if (!ev_is_active (w)) 1820 if (expect_false (!ev_is_active (w)))
1567 return; 1821 return;
1568 1822
1569 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1823 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1570 ev_stop (EV_A_ (W)w); 1824 ev_stop (EV_A_ (W)w);
1571} 1825}
1572 1826
1827#if EV_STAT_ENABLE
1828
1829# ifdef _WIN32
1830# undef lstat
1831# define lstat(a,b) _stati64 (a,b)
1832# endif
1833
1834#define DEF_STAT_INTERVAL 5.0074891
1835#define MIN_STAT_INTERVAL 0.1074891
1836
1837static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1838
1839#if EV_USE_INOTIFY
1840# define EV_INOTIFY_BUFSIZE 8192
1841
1842static void noinline
1843infy_add (EV_P_ ev_stat *w)
1844{
1845 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);
1846
1847 if (w->wd < 0)
1848 {
1849 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1850
1851 /* monitor some parent directory for speedup hints */
1852 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1853 {
1854 char path [4096];
1855 strcpy (path, w->path);
1856
1857 do
1858 {
1859 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1860 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1861
1862 char *pend = strrchr (path, '/');
1863
1864 if (!pend)
1865 break; /* whoops, no '/', complain to your admin */
1866
1867 *pend = 0;
1868 w->wd = inotify_add_watch (fs_fd, path, mask);
1869 }
1870 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1871 }
1872 }
1873 else
1874 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1875
1876 if (w->wd >= 0)
1877 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1878}
1879
1880static void noinline
1881infy_del (EV_P_ ev_stat *w)
1882{
1883 int slot;
1884 int wd = w->wd;
1885
1886 if (wd < 0)
1887 return;
1888
1889 w->wd = -2;
1890 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1891 wlist_del (&fs_hash [slot].head, (WL)w);
1892
1893 /* remove this watcher, if others are watching it, they will rearm */
1894 inotify_rm_watch (fs_fd, wd);
1895}
1896
1897static void noinline
1898infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1899{
1900 if (slot < 0)
1901 /* overflow, need to check for all hahs slots */
1902 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1903 infy_wd (EV_A_ slot, wd, ev);
1904 else
1905 {
1906 WL w_;
1907
1908 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1909 {
1910 ev_stat *w = (ev_stat *)w_;
1911 w_ = w_->next; /* lets us remove this watcher and all before it */
1912
1913 if (w->wd == wd || wd == -1)
1914 {
1915 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1916 {
1917 w->wd = -1;
1918 infy_add (EV_A_ w); /* re-add, no matter what */
1919 }
1920
1921 stat_timer_cb (EV_A_ &w->timer, 0);
1922 }
1923 }
1924 }
1925}
1926
1927static void
1928infy_cb (EV_P_ ev_io *w, int revents)
1929{
1930 char buf [EV_INOTIFY_BUFSIZE];
1931 struct inotify_event *ev = (struct inotify_event *)buf;
1932 int ofs;
1933 int len = read (fs_fd, buf, sizeof (buf));
1934
1935 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1936 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1937}
1938
1939void inline_size
1940infy_init (EV_P)
1941{
1942 if (fs_fd != -2)
1943 return;
1944
1945 fs_fd = inotify_init ();
1946
1947 if (fs_fd >= 0)
1948 {
1949 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1950 ev_set_priority (&fs_w, EV_MAXPRI);
1951 ev_io_start (EV_A_ &fs_w);
1952 }
1953}
1954
1955void inline_size
1956infy_fork (EV_P)
1957{
1958 int slot;
1959
1960 if (fs_fd < 0)
1961 return;
1962
1963 close (fs_fd);
1964 fs_fd = inotify_init ();
1965
1966 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1967 {
1968 WL w_ = fs_hash [slot].head;
1969 fs_hash [slot].head = 0;
1970
1971 while (w_)
1972 {
1973 ev_stat *w = (ev_stat *)w_;
1974 w_ = w_->next; /* lets us add this watcher */
1975
1976 w->wd = -1;
1977
1978 if (fs_fd >= 0)
1979 infy_add (EV_A_ w); /* re-add, no matter what */
1980 else
1981 ev_timer_start (EV_A_ &w->timer);
1982 }
1983
1984 }
1985}
1986
1987#endif
1988
1989void
1990ev_stat_stat (EV_P_ ev_stat *w)
1991{
1992 if (lstat (w->path, &w->attr) < 0)
1993 w->attr.st_nlink = 0;
1994 else if (!w->attr.st_nlink)
1995 w->attr.st_nlink = 1;
1996}
1997
1998static void noinline
1999stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2000{
2001 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2002
2003 /* we copy this here each the time so that */
2004 /* prev has the old value when the callback gets invoked */
2005 w->prev = w->attr;
2006 ev_stat_stat (EV_A_ w);
2007
2008 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2009 if (
2010 w->prev.st_dev != w->attr.st_dev
2011 || w->prev.st_ino != w->attr.st_ino
2012 || w->prev.st_mode != w->attr.st_mode
2013 || w->prev.st_nlink != w->attr.st_nlink
2014 || w->prev.st_uid != w->attr.st_uid
2015 || w->prev.st_gid != w->attr.st_gid
2016 || w->prev.st_rdev != w->attr.st_rdev
2017 || w->prev.st_size != w->attr.st_size
2018 || w->prev.st_atime != w->attr.st_atime
2019 || w->prev.st_mtime != w->attr.st_mtime
2020 || w->prev.st_ctime != w->attr.st_ctime
2021 ) {
2022 #if EV_USE_INOTIFY
2023 infy_del (EV_A_ w);
2024 infy_add (EV_A_ w);
2025 ev_stat_stat (EV_A_ w); /* avoid race... */
2026 #endif
2027
2028 ev_feed_event (EV_A_ w, EV_STAT);
2029 }
2030}
2031
2032void
2033ev_stat_start (EV_P_ ev_stat *w)
2034{
2035 if (expect_false (ev_is_active (w)))
2036 return;
2037
2038 /* since we use memcmp, we need to clear any padding data etc. */
2039 memset (&w->prev, 0, sizeof (ev_statdata));
2040 memset (&w->attr, 0, sizeof (ev_statdata));
2041
2042 ev_stat_stat (EV_A_ w);
2043
2044 if (w->interval < MIN_STAT_INTERVAL)
2045 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2046
2047 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2048 ev_set_priority (&w->timer, ev_priority (w));
2049
2050#if EV_USE_INOTIFY
2051 infy_init (EV_A);
2052
2053 if (fs_fd >= 0)
2054 infy_add (EV_A_ w);
2055 else
2056#endif
2057 ev_timer_start (EV_A_ &w->timer);
2058
2059 ev_start (EV_A_ (W)w, 1);
2060}
2061
2062void
2063ev_stat_stop (EV_P_ ev_stat *w)
2064{
2065 clear_pending (EV_A_ (W)w);
2066 if (expect_false (!ev_is_active (w)))
2067 return;
2068
2069#if EV_USE_INOTIFY
2070 infy_del (EV_A_ w);
2071#endif
2072 ev_timer_stop (EV_A_ &w->timer);
2073
2074 ev_stop (EV_A_ (W)w);
2075}
2076#endif
2077
2078#if EV_IDLE_ENABLE
2079void
2080ev_idle_start (EV_P_ ev_idle *w)
2081{
2082 if (expect_false (ev_is_active (w)))
2083 return;
2084
2085 pri_adjust (EV_A_ (W)w);
2086
2087 {
2088 int active = ++idlecnt [ABSPRI (w)];
2089
2090 ++idleall;
2091 ev_start (EV_A_ (W)w, active);
2092
2093 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2094 idles [ABSPRI (w)][active - 1] = w;
2095 }
2096}
2097
2098void
2099ev_idle_stop (EV_P_ ev_idle *w)
2100{
2101 clear_pending (EV_A_ (W)w);
2102 if (expect_false (!ev_is_active (w)))
2103 return;
2104
2105 {
2106 int active = ((W)w)->active;
2107
2108 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2109 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2110
2111 ev_stop (EV_A_ (W)w);
2112 --idleall;
2113 }
2114}
2115#endif
2116
2117void
2118ev_prepare_start (EV_P_ ev_prepare *w)
2119{
2120 if (expect_false (ev_is_active (w)))
2121 return;
2122
2123 ev_start (EV_A_ (W)w, ++preparecnt);
2124 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2125 prepares [preparecnt - 1] = w;
2126}
2127
2128void
2129ev_prepare_stop (EV_P_ ev_prepare *w)
2130{
2131 clear_pending (EV_A_ (W)w);
2132 if (expect_false (!ev_is_active (w)))
2133 return;
2134
2135 {
2136 int active = ((W)w)->active;
2137 prepares [active - 1] = prepares [--preparecnt];
2138 ((W)prepares [active - 1])->active = active;
2139 }
2140
2141 ev_stop (EV_A_ (W)w);
2142}
2143
2144void
2145ev_check_start (EV_P_ ev_check *w)
2146{
2147 if (expect_false (ev_is_active (w)))
2148 return;
2149
2150 ev_start (EV_A_ (W)w, ++checkcnt);
2151 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2152 checks [checkcnt - 1] = w;
2153}
2154
2155void
2156ev_check_stop (EV_P_ ev_check *w)
2157{
2158 clear_pending (EV_A_ (W)w);
2159 if (expect_false (!ev_is_active (w)))
2160 return;
2161
2162 {
2163 int active = ((W)w)->active;
2164 checks [active - 1] = checks [--checkcnt];
2165 ((W)checks [active - 1])->active = active;
2166 }
2167
2168 ev_stop (EV_A_ (W)w);
2169}
2170
2171#if EV_EMBED_ENABLE
2172void noinline
2173ev_embed_sweep (EV_P_ ev_embed *w)
2174{
2175 ev_loop (w->loop, EVLOOP_NONBLOCK);
2176}
2177
2178static void
2179embed_cb (EV_P_ ev_io *io, int revents)
2180{
2181 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2182
2183 if (ev_cb (w))
2184 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2185 else
2186 ev_embed_sweep (loop, w);
2187}
2188
2189void
2190ev_embed_start (EV_P_ ev_embed *w)
2191{
2192 if (expect_false (ev_is_active (w)))
2193 return;
2194
2195 {
2196 struct ev_loop *loop = w->loop;
2197 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2198 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2199 }
2200
2201 ev_set_priority (&w->io, ev_priority (w));
2202 ev_io_start (EV_A_ &w->io);
2203
2204 ev_start (EV_A_ (W)w, 1);
2205}
2206
2207void
2208ev_embed_stop (EV_P_ ev_embed *w)
2209{
2210 clear_pending (EV_A_ (W)w);
2211 if (expect_false (!ev_is_active (w)))
2212 return;
2213
2214 ev_io_stop (EV_A_ &w->io);
2215
2216 ev_stop (EV_A_ (W)w);
2217}
2218#endif
2219
2220#if EV_FORK_ENABLE
2221void
2222ev_fork_start (EV_P_ ev_fork *w)
2223{
2224 if (expect_false (ev_is_active (w)))
2225 return;
2226
2227 ev_start (EV_A_ (W)w, ++forkcnt);
2228 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2229 forks [forkcnt - 1] = w;
2230}
2231
2232void
2233ev_fork_stop (EV_P_ ev_fork *w)
2234{
2235 clear_pending (EV_A_ (W)w);
2236 if (expect_false (!ev_is_active (w)))
2237 return;
2238
2239 {
2240 int active = ((W)w)->active;
2241 forks [active - 1] = forks [--forkcnt];
2242 ((W)forks [active - 1])->active = active;
2243 }
2244
2245 ev_stop (EV_A_ (W)w);
2246}
2247#endif
2248
1573/*****************************************************************************/ 2249/*****************************************************************************/
1574 2250
1575struct ev_once 2251struct ev_once
1576{ 2252{
1577 struct ev_io io; 2253 ev_io io;
1578 struct ev_timer to; 2254 ev_timer to;
1579 void (*cb)(int revents, void *arg); 2255 void (*cb)(int revents, void *arg);
1580 void *arg; 2256 void *arg;
1581}; 2257};
1582 2258
1583static void 2259static void
… …
1592 2268
1593 cb (revents, arg); 2269 cb (revents, arg);
1594} 2270}
1595 2271
1596static void 2272static void
1597once_cb_io (EV_P_ struct ev_io *w, int revents) 2273once_cb_io (EV_P_ ev_io *w, int revents)
1598{ 2274{
1599 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2275 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1600} 2276}
1601 2277
1602static void 2278static void
1603once_cb_to (EV_P_ struct ev_timer *w, int revents) 2279once_cb_to (EV_P_ ev_timer *w, int revents)
1604{ 2280{
1605 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2281 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1606} 2282}
1607 2283
1608void 2284void
1609ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2285ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1610{ 2286{
1611 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2287 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1612 2288
1613 if (!once) 2289 if (expect_false (!once))
2290 {
1614 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2291 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1615 else 2292 return;
1616 { 2293 }
2294
1617 once->cb = cb; 2295 once->cb = cb;
1618 once->arg = arg; 2296 once->arg = arg;
1619 2297
1620 ev_init (&once->io, once_cb_io); 2298 ev_init (&once->io, once_cb_io);
1621 if (fd >= 0) 2299 if (fd >= 0)
1622 { 2300 {
1623 ev_io_set (&once->io, fd, events); 2301 ev_io_set (&once->io, fd, events);
1624 ev_io_start (EV_A_ &once->io); 2302 ev_io_start (EV_A_ &once->io);
1625 } 2303 }
1626 2304
1627 ev_init (&once->to, once_cb_to); 2305 ev_init (&once->to, once_cb_to);
1628 if (timeout >= 0.) 2306 if (timeout >= 0.)
1629 { 2307 {
1630 ev_timer_set (&once->to, timeout, 0.); 2308 ev_timer_set (&once->to, timeout, 0.);
1631 ev_timer_start (EV_A_ &once->to); 2309 ev_timer_start (EV_A_ &once->to);
1632 }
1633 } 2310 }
1634} 2311}
1635 2312
1636#ifdef __cplusplus 2313#ifdef __cplusplus
1637} 2314}

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines