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Comparing libev/ev.c (file contents):
Revision 1.77 by root, Thu Nov 8 00:44:17 2007 UTC vs.
Revision 1.129 by root, Fri Nov 23 05:00:44 2007 UTC

26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */ 30 */
31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
31#ifndef EV_STANDALONE 36#ifndef EV_STANDALONE
32# include "config.h" 37# include "config.h"
33 38
34# if HAVE_CLOCK_GETTIME 39# if HAVE_CLOCK_GETTIME
40# ifndef EV_USE_MONOTONIC
35# define EV_USE_MONOTONIC 1 41# define EV_USE_MONOTONIC 1
42# endif
43# ifndef EV_USE_REALTIME
36# define EV_USE_REALTIME 1 44# define EV_USE_REALTIME 1
45# endif
46# else
47# ifndef EV_USE_MONOTONIC
48# define EV_USE_MONOTONIC 0
49# endif
50# ifndef EV_USE_REALTIME
51# define EV_USE_REALTIME 0
52# endif
37# endif 53# endif
38 54
55# ifndef EV_USE_SELECT
39# if HAVE_SELECT && HAVE_SYS_SELECT_H 56# if HAVE_SELECT && HAVE_SYS_SELECT_H
40# define EV_USE_SELECT 1 57# define EV_USE_SELECT 1
58# else
59# define EV_USE_SELECT 0
60# endif
41# endif 61# endif
42 62
63# ifndef EV_USE_POLL
43# if HAVE_POLL && HAVE_POLL_H 64# if HAVE_POLL && HAVE_POLL_H
44# define EV_USE_POLL 1 65# define EV_USE_POLL 1
66# else
67# define EV_USE_POLL 0
68# endif
45# endif 69# endif
46 70
71# ifndef EV_USE_EPOLL
47# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 72# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48# define EV_USE_EPOLL 1 73# define EV_USE_EPOLL 1
74# else
75# define EV_USE_EPOLL 0
76# endif
49# endif 77# endif
50 78
79# ifndef EV_USE_KQUEUE
51# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 80# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52# define EV_USE_KQUEUE 1 81# define EV_USE_KQUEUE 1
82# else
83# define EV_USE_KQUEUE 0
84# endif
85# endif
86
87# ifndef EV_USE_PORT
88# if HAVE_PORT_H && HAVE_PORT_CREATE
89# define EV_USE_PORT 1
90# else
91# define EV_USE_PORT 0
92# endif
53# endif 93# endif
54 94
55#endif 95#endif
56 96
57#include <math.h> 97#include <math.h>
66#include <sys/types.h> 106#include <sys/types.h>
67#include <time.h> 107#include <time.h>
68 108
69#include <signal.h> 109#include <signal.h>
70 110
71#ifndef WIN32 111#ifndef _WIN32
72# include <unistd.h> 112# include <unistd.h>
73# include <sys/time.h> 113# include <sys/time.h>
74# include <sys/wait.h> 114# include <sys/wait.h>
115#else
116# define WIN32_LEAN_AND_MEAN
117# include <windows.h>
118# ifndef EV_SELECT_IS_WINSOCKET
119# define EV_SELECT_IS_WINSOCKET 1
75#endif 120# endif
121#endif
122
76/**/ 123/**/
77 124
78#ifndef EV_USE_MONOTONIC 125#ifndef EV_USE_MONOTONIC
79# define EV_USE_MONOTONIC 1 126# define EV_USE_MONOTONIC 0
127#endif
128
129#ifndef EV_USE_REALTIME
130# define EV_USE_REALTIME 0
80#endif 131#endif
81 132
82#ifndef EV_USE_SELECT 133#ifndef EV_USE_SELECT
83# define EV_USE_SELECT 1 134# define EV_USE_SELECT 1
84#endif 135#endif
85 136
86#ifndef EV_USE_POLL 137#ifndef EV_USE_POLL
87# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ 138# ifdef _WIN32
139# define EV_USE_POLL 0
140# else
141# define EV_USE_POLL 1
142# endif
88#endif 143#endif
89 144
90#ifndef EV_USE_EPOLL 145#ifndef EV_USE_EPOLL
91# define EV_USE_EPOLL 0 146# define EV_USE_EPOLL 0
92#endif 147#endif
93 148
94#ifndef EV_USE_KQUEUE 149#ifndef EV_USE_KQUEUE
95# define EV_USE_KQUEUE 0 150# define EV_USE_KQUEUE 0
96#endif 151#endif
97 152
98#ifndef EV_USE_WIN32
99# ifdef WIN32
100# define EV_USE_WIN32 0 /* it does not exist, use select */
101# undef EV_USE_SELECT
102# define EV_USE_SELECT 1
103# else
104# define EV_USE_WIN32 0
105# endif
106#endif
107
108#ifndef EV_USE_REALTIME 153#ifndef EV_USE_PORT
109# define EV_USE_REALTIME 1 154# define EV_USE_PORT 0
110#endif 155#endif
111 156
112/**/ 157/**/
113 158
114#ifndef CLOCK_MONOTONIC 159#ifndef CLOCK_MONOTONIC
119#ifndef CLOCK_REALTIME 164#ifndef CLOCK_REALTIME
120# undef EV_USE_REALTIME 165# undef EV_USE_REALTIME
121# define EV_USE_REALTIME 0 166# define EV_USE_REALTIME 0
122#endif 167#endif
123 168
169#if EV_SELECT_IS_WINSOCKET
170# include <winsock.h>
171#endif
172
124/**/ 173/**/
125 174
126#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 175#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ 176#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
128#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ 177#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ 178/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
130 179
180#ifdef EV_H
181# include EV_H
182#else
131#include "ev.h" 183# include "ev.h"
184#endif
132 185
133#if __GNUC__ >= 3 186#if __GNUC__ >= 3
134# define expect(expr,value) __builtin_expect ((expr),(value)) 187# define expect(expr,value) __builtin_expect ((expr),(value))
135# define inline inline 188# define inline static inline
136#else 189#else
137# define expect(expr,value) (expr) 190# define expect(expr,value) (expr)
138# define inline static 191# define inline static
139#endif 192#endif
140 193
142#define expect_true(expr) expect ((expr) != 0, 1) 195#define expect_true(expr) expect ((expr) != 0, 1)
143 196
144#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 197#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145#define ABSPRI(w) ((w)->priority - EV_MINPRI) 198#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146 199
200#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
201#define EMPTY2(a,b) /* used to suppress some warnings */
202
147typedef struct ev_watcher *W; 203typedef struct ev_watcher *W;
148typedef struct ev_watcher_list *WL; 204typedef struct ev_watcher_list *WL;
149typedef struct ev_watcher_time *WT; 205typedef struct ev_watcher_time *WT;
150 206
151static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 207static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152 208
209#ifdef _WIN32
153#include "ev_win32.c" 210# include "ev_win32.c"
211#endif
154 212
155/*****************************************************************************/ 213/*****************************************************************************/
156 214
157static void (*syserr_cb)(const char *msg); 215static void (*syserr_cb)(const char *msg);
158 216
205typedef struct 263typedef struct
206{ 264{
207 WL head; 265 WL head;
208 unsigned char events; 266 unsigned char events;
209 unsigned char reify; 267 unsigned char reify;
268#if EV_SELECT_IS_WINSOCKET
269 SOCKET handle;
270#endif
210} ANFD; 271} ANFD;
211 272
212typedef struct 273typedef struct
213{ 274{
214 W w; 275 W w;
215 int events; 276 int events;
216} ANPENDING; 277} ANPENDING;
217 278
218#if EV_MULTIPLICITY 279#if EV_MULTIPLICITY
219 280
220struct ev_loop 281 struct ev_loop
221{ 282 {
283 ev_tstamp ev_rt_now;
284 #define ev_rt_now ((loop)->ev_rt_now)
222# define VAR(name,decl) decl; 285 #define VAR(name,decl) decl;
223# include "ev_vars.h" 286 #include "ev_vars.h"
224};
225# undef VAR 287 #undef VAR
288 };
226# include "ev_wrap.h" 289 #include "ev_wrap.h"
290
291 static struct ev_loop default_loop_struct;
292 struct ev_loop *ev_default_loop_ptr;
227 293
228#else 294#else
229 295
296 ev_tstamp ev_rt_now;
230# define VAR(name,decl) static decl; 297 #define VAR(name,decl) static decl;
231# include "ev_vars.h" 298 #include "ev_vars.h"
232# undef VAR 299 #undef VAR
300
301 static int ev_default_loop_ptr;
233 302
234#endif 303#endif
235 304
236/*****************************************************************************/ 305/*****************************************************************************/
237 306
238inline ev_tstamp 307ev_tstamp
239ev_time (void) 308ev_time (void)
240{ 309{
241#if EV_USE_REALTIME 310#if EV_USE_REALTIME
242 struct timespec ts; 311 struct timespec ts;
243 clock_gettime (CLOCK_REALTIME, &ts); 312 clock_gettime (CLOCK_REALTIME, &ts);
262#endif 331#endif
263 332
264 return ev_time (); 333 return ev_time ();
265} 334}
266 335
336#if EV_MULTIPLICITY
267ev_tstamp 337ev_tstamp
268ev_now (EV_P) 338ev_now (EV_P)
269{ 339{
270 return rt_now; 340 return ev_rt_now;
271} 341}
342#endif
272 343
273#define array_roundsize(type,n) ((n) | 4 & ~3) 344#define array_roundsize(type,n) (((n) | 4) & ~3)
274 345
275#define array_needsize(type,base,cur,cnt,init) \ 346#define array_needsize(type,base,cur,cnt,init) \
276 if (expect_false ((cnt) > cur)) \ 347 if (expect_false ((cnt) > cur)) \
277 { \ 348 { \
278 int newcnt = cur; \ 349 int newcnt = cur; \
293 stem ## max = array_roundsize (stem ## cnt >> 1); \ 364 stem ## max = array_roundsize (stem ## cnt >> 1); \
294 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 365 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
295 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 366 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
296 } 367 }
297 368
298/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
299/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
300#define array_free_microshit(stem) \
301 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
302
303#define array_free(stem, idx) \ 369#define array_free(stem, idx) \
304 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 370 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
305 371
306/*****************************************************************************/ 372/*****************************************************************************/
307 373
316 382
317 ++base; 383 ++base;
318 } 384 }
319} 385}
320 386
321static void 387void
322event (EV_P_ W w, int events) 388ev_feed_event (EV_P_ void *w, int revents)
323{ 389{
324 if (w->pending) 390 W w_ = (W)w;
391
392 if (expect_false (w_->pending))
325 { 393 {
326 pendings [ABSPRI (w)][w->pending - 1].events |= events; 394 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
327 return; 395 return;
328 } 396 }
329 397
330 w->pending = ++pendingcnt [ABSPRI (w)]; 398 w_->pending = ++pendingcnt [ABSPRI (w_)];
331 array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void)); 399 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
332 pendings [ABSPRI (w)][w->pending - 1].w = w; 400 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
333 pendings [ABSPRI (w)][w->pending - 1].events = events; 401 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
334} 402}
335 403
336static void 404static void
337queue_events (EV_P_ W *events, int eventcnt, int type) 405queue_events (EV_P_ W *events, int eventcnt, int type)
338{ 406{
339 int i; 407 int i;
340 408
341 for (i = 0; i < eventcnt; ++i) 409 for (i = 0; i < eventcnt; ++i)
342 event (EV_A_ events [i], type); 410 ev_feed_event (EV_A_ events [i], type);
343} 411}
344 412
345static void 413inline void
346fd_event (EV_P_ int fd, int events) 414fd_event (EV_P_ int fd, int revents)
347{ 415{
348 ANFD *anfd = anfds + fd; 416 ANFD *anfd = anfds + fd;
349 struct ev_io *w; 417 struct ev_io *w;
350 418
351 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 419 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
352 { 420 {
353 int ev = w->events & events; 421 int ev = w->events & revents;
354 422
355 if (ev) 423 if (ev)
356 event (EV_A_ (W)w, ev); 424 ev_feed_event (EV_A_ (W)w, ev);
357 } 425 }
426}
427
428void
429ev_feed_fd_event (EV_P_ int fd, int revents)
430{
431 fd_event (EV_A_ fd, revents);
358} 432}
359 433
360/*****************************************************************************/ 434/*****************************************************************************/
361 435
362static void 436inline void
363fd_reify (EV_P) 437fd_reify (EV_P)
364{ 438{
365 int i; 439 int i;
366 440
367 for (i = 0; i < fdchangecnt; ++i) 441 for (i = 0; i < fdchangecnt; ++i)
373 int events = 0; 447 int events = 0;
374 448
375 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 449 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
376 events |= w->events; 450 events |= w->events;
377 451
452#if EV_SELECT_IS_WINSOCKET
453 if (events)
454 {
455 unsigned long argp;
456 anfd->handle = _get_osfhandle (fd);
457 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
458 }
459#endif
460
378 anfd->reify = 0; 461 anfd->reify = 0;
379 462
380 method_modify (EV_A_ fd, anfd->events, events); 463 method_modify (EV_A_ fd, anfd->events, events);
381 anfd->events = events; 464 anfd->events = events;
382 } 465 }
385} 468}
386 469
387static void 470static void
388fd_change (EV_P_ int fd) 471fd_change (EV_P_ int fd)
389{ 472{
390 if (anfds [fd].reify) 473 if (expect_false (anfds [fd].reify))
391 return; 474 return;
392 475
393 anfds [fd].reify = 1; 476 anfds [fd].reify = 1;
394 477
395 ++fdchangecnt; 478 ++fdchangecnt;
396 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 479 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
397 fdchanges [fdchangecnt - 1] = fd; 480 fdchanges [fdchangecnt - 1] = fd;
398} 481}
399 482
400static void 483static void
401fd_kill (EV_P_ int fd) 484fd_kill (EV_P_ int fd)
403 struct ev_io *w; 486 struct ev_io *w;
404 487
405 while ((w = (struct ev_io *)anfds [fd].head)) 488 while ((w = (struct ev_io *)anfds [fd].head))
406 { 489 {
407 ev_io_stop (EV_A_ w); 490 ev_io_stop (EV_A_ w);
408 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 491 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
409 } 492 }
410} 493}
411 494
412static int 495inline int
413fd_valid (int fd) 496fd_valid (int fd)
414{ 497{
415#ifdef WIN32 498#ifdef _WIN32
416 return !!win32_get_osfhandle (fd); 499 return _get_osfhandle (fd) != -1;
417#else 500#else
418 return fcntl (fd, F_GETFD) != -1; 501 return fcntl (fd, F_GETFD) != -1;
419#endif 502#endif
420} 503}
421 504
501 584
502 heap [k] = w; 585 heap [k] = w;
503 ((W)heap [k])->active = k + 1; 586 ((W)heap [k])->active = k + 1;
504} 587}
505 588
589inline void
590adjustheap (WT *heap, int N, int k)
591{
592 upheap (heap, k);
593 downheap (heap, N, k);
594}
595
506/*****************************************************************************/ 596/*****************************************************************************/
507 597
508typedef struct 598typedef struct
509{ 599{
510 WL head; 600 WL head;
531} 621}
532 622
533static void 623static void
534sighandler (int signum) 624sighandler (int signum)
535{ 625{
536#if WIN32 626#if _WIN32
537 signal (signum, sighandler); 627 signal (signum, sighandler);
538#endif 628#endif
539 629
540 signals [signum - 1].gotsig = 1; 630 signals [signum - 1].gotsig = 1;
541 631
542 if (!gotsig) 632 if (!gotsig)
543 { 633 {
544 int old_errno = errno; 634 int old_errno = errno;
545 gotsig = 1; 635 gotsig = 1;
546#ifdef WIN32
547 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
548#else
549 write (sigpipe [1], &signum, 1); 636 write (sigpipe [1], &signum, 1);
550#endif
551 errno = old_errno; 637 errno = old_errno;
552 } 638 }
553} 639}
554 640
641void
642ev_feed_signal_event (EV_P_ int signum)
643{
644 WL w;
645
646#if EV_MULTIPLICITY
647 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
648#endif
649
650 --signum;
651
652 if (signum < 0 || signum >= signalmax)
653 return;
654
655 signals [signum].gotsig = 0;
656
657 for (w = signals [signum].head; w; w = w->next)
658 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
659}
660
555static void 661static void
556sigcb (EV_P_ struct ev_io *iow, int revents) 662sigcb (EV_P_ struct ev_io *iow, int revents)
557{ 663{
558 WL w;
559 int signum; 664 int signum;
560 665
561#ifdef WIN32
562 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
563#else
564 read (sigpipe [0], &revents, 1); 666 read (sigpipe [0], &revents, 1);
565#endif
566 gotsig = 0; 667 gotsig = 0;
567 668
568 for (signum = signalmax; signum--; ) 669 for (signum = signalmax; signum--; )
569 if (signals [signum].gotsig) 670 if (signals [signum].gotsig)
570 { 671 ev_feed_signal_event (EV_A_ signum + 1);
571 signals [signum].gotsig = 0; 672}
572 673
573 for (w = signals [signum].head; w; w = w->next) 674static void
574 event (EV_A_ (W)w, EV_SIGNAL); 675fd_intern (int fd)
575 } 676{
677#ifdef _WIN32
678 int arg = 1;
679 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
680#else
681 fcntl (fd, F_SETFD, FD_CLOEXEC);
682 fcntl (fd, F_SETFL, O_NONBLOCK);
683#endif
576} 684}
577 685
578static void 686static void
579siginit (EV_P) 687siginit (EV_P)
580{ 688{
581#ifndef WIN32 689 fd_intern (sigpipe [0]);
582 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 690 fd_intern (sigpipe [1]);
583 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
584
585 /* rather than sort out wether we really need nb, set it */
586 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
587 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
588#endif
589 691
590 ev_io_set (&sigev, sigpipe [0], EV_READ); 692 ev_io_set (&sigev, sigpipe [0], EV_READ);
591 ev_io_start (EV_A_ &sigev); 693 ev_io_start (EV_A_ &sigev);
592 ev_unref (EV_A); /* child watcher should not keep loop alive */ 694 ev_unref (EV_A); /* child watcher should not keep loop alive */
593} 695}
594 696
595/*****************************************************************************/ 697/*****************************************************************************/
596 698
597static struct ev_child *childs [PID_HASHSIZE]; 699static struct ev_child *childs [PID_HASHSIZE];
598 700
599#ifndef WIN32 701#ifndef _WIN32
600 702
601static struct ev_signal childev; 703static struct ev_signal childev;
602 704
603#ifndef WCONTINUED 705#ifndef WCONTINUED
604# define WCONTINUED 0 706# define WCONTINUED 0
613 if (w->pid == pid || !w->pid) 715 if (w->pid == pid || !w->pid)
614 { 716 {
615 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 717 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
616 w->rpid = pid; 718 w->rpid = pid;
617 w->rstatus = status; 719 w->rstatus = status;
618 event (EV_A_ (W)w, EV_CHILD); 720 ev_feed_event (EV_A_ (W)w, EV_CHILD);
619 } 721 }
620} 722}
621 723
622static void 724static void
623childcb (EV_P_ struct ev_signal *sw, int revents) 725childcb (EV_P_ struct ev_signal *sw, int revents)
625 int pid, status; 727 int pid, status;
626 728
627 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 729 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
628 { 730 {
629 /* make sure we are called again until all childs have been reaped */ 731 /* make sure we are called again until all childs have been reaped */
630 event (EV_A_ (W)sw, EV_SIGNAL); 732 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
631 733
632 child_reap (EV_A_ sw, pid, pid, status); 734 child_reap (EV_A_ sw, pid, pid, status);
633 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 735 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
634 } 736 }
635} 737}
636 738
637#endif 739#endif
638 740
639/*****************************************************************************/ 741/*****************************************************************************/
640 742
743#if EV_USE_PORT
744# include "ev_port.c"
745#endif
641#if EV_USE_KQUEUE 746#if EV_USE_KQUEUE
642# include "ev_kqueue.c" 747# include "ev_kqueue.c"
643#endif 748#endif
644#if EV_USE_EPOLL 749#if EV_USE_EPOLL
645# include "ev_epoll.c" 750# include "ev_epoll.c"
665 770
666/* return true if we are running with elevated privileges and should ignore env variables */ 771/* return true if we are running with elevated privileges and should ignore env variables */
667static int 772static int
668enable_secure (void) 773enable_secure (void)
669{ 774{
670#ifdef WIN32 775#ifdef _WIN32
671 return 0; 776 return 0;
672#else 777#else
673 return getuid () != geteuid () 778 return getuid () != geteuid ()
674 || getgid () != getegid (); 779 || getgid () != getegid ();
675#endif 780#endif
676} 781}
677 782
678int 783unsigned int
679ev_method (EV_P) 784ev_supported_backends (void)
680{ 785{
681 return method;
682} 786}
683 787
788unsigned int
789ev_recommended_backends (void)
790{
791 unsigned int flags;
792
793 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
794 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
795 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
796 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
797 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
798
799 return flags;
800}
801
802unsigned int
803ev_backend (EV_P)
804{
805 unsigned int flags = ev_recommended_backends ();
806
807#ifndef __NetBSD__
808 /* kqueue is borked on everything but netbsd apparently */
809 /* it usually doesn't work correctly on anything but sockets and pipes */
810 flags &= ~EVBACKEND_KQUEUE;
811#endif
812#ifdef __APPLE__
813 // flags &= ~EVBACKEND_KQUEUE; for documentation
814 flags &= ~EVBACKEND_POLL;
815#endif
816
817 return flags;
818}
819
684static void 820static void
685loop_init (EV_P_ int methods) 821loop_init (EV_P_ unsigned int flags)
686{ 822{
687 if (!method) 823 if (!method)
688 { 824 {
689#if EV_USE_MONOTONIC 825#if EV_USE_MONOTONIC
690 { 826 {
692 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 828 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
693 have_monotonic = 1; 829 have_monotonic = 1;
694 } 830 }
695#endif 831#endif
696 832
697 rt_now = ev_time (); 833 ev_rt_now = ev_time ();
698 mn_now = get_clock (); 834 mn_now = get_clock ();
699 now_floor = mn_now; 835 now_floor = mn_now;
700 rtmn_diff = rt_now - mn_now; 836 rtmn_diff = ev_rt_now - mn_now;
701 837
702 if (methods == EVMETHOD_AUTO) 838 if (!(flags & EVFLAG_NOENV)
703 if (!enable_secure () && getenv ("LIBEV_METHODS")) 839 && !enable_secure ()
840 && getenv ("LIBEV_FLAGS"))
704 methods = atoi (getenv ("LIBEV_METHODS")); 841 flags = atoi (getenv ("LIBEV_FLAGS"));
705 else 842
706 methods = EVMETHOD_ANY; 843 if (!(flags & 0x0000ffffUL))
844 flags |= ev_recommended_backends ();
707 845
708 method = 0; 846 method = 0;
709#if EV_USE_WIN32 847#if EV_USE_PORT
710 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); 848 if (!method && (flags & EVBACKEND_PORT )) method = port_init (EV_A_ flags);
711#endif 849#endif
712#if EV_USE_KQUEUE 850#if EV_USE_KQUEUE
713 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 851 if (!method && (flags & EVBACKEND_KQUEUE)) method = kqueue_init (EV_A_ flags);
714#endif 852#endif
715#if EV_USE_EPOLL 853#if EV_USE_EPOLL
716 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 854 if (!method && (flags & EVBACKEND_EPOLL )) method = epoll_init (EV_A_ flags);
717#endif 855#endif
718#if EV_USE_POLL 856#if EV_USE_POLL
719 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 857 if (!method && (flags & EVBACKEND_POLL )) method = poll_init (EV_A_ flags);
720#endif 858#endif
721#if EV_USE_SELECT 859#if EV_USE_SELECT
722 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 860 if (!method && (flags & EVBACKEND_SELECT)) method = select_init (EV_A_ flags);
723#endif 861#endif
724 862
725 ev_watcher_init (&sigev, sigcb); 863 ev_init (&sigev, sigcb);
726 ev_set_priority (&sigev, EV_MAXPRI); 864 ev_set_priority (&sigev, EV_MAXPRI);
727 } 865 }
728} 866}
729 867
730void 868static void
731loop_destroy (EV_P) 869loop_destroy (EV_P)
732{ 870{
733 int i; 871 int i;
734 872
735#if EV_USE_WIN32 873#if EV_USE_PORT
736 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); 874 if (method == EVBACKEND_PORT ) port_destroy (EV_A);
737#endif 875#endif
738#if EV_USE_KQUEUE 876#if EV_USE_KQUEUE
739 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 877 if (method == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
740#endif 878#endif
741#if EV_USE_EPOLL 879#if EV_USE_EPOLL
742 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 880 if (method == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
743#endif 881#endif
744#if EV_USE_POLL 882#if EV_USE_POLL
745 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 883 if (method == EVBACKEND_POLL ) poll_destroy (EV_A);
746#endif 884#endif
747#if EV_USE_SELECT 885#if EV_USE_SELECT
748 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 886 if (method == EVBACKEND_SELECT) select_destroy (EV_A);
749#endif 887#endif
750 888
751 for (i = NUMPRI; i--; ) 889 for (i = NUMPRI; i--; )
752 array_free (pending, [i]); 890 array_free (pending, [i]);
753 891
754 /* have to use the microsoft-never-gets-it-right macro */ 892 /* have to use the microsoft-never-gets-it-right macro */
755 array_free_microshit (fdchange); 893 array_free (fdchange, EMPTY0);
756 array_free_microshit (timer); 894 array_free (timer, EMPTY0);
757 array_free_microshit (periodic); 895#if EV_PERIODICS
758 array_free_microshit (idle); 896 array_free (periodic, EMPTY0);
759 array_free_microshit (prepare); 897#endif
760 array_free_microshit (check); 898 array_free (idle, EMPTY0);
899 array_free (prepare, EMPTY0);
900 array_free (check, EMPTY0);
761 901
762 method = 0; 902 method = 0;
763} 903}
764 904
765static void 905static void
766loop_fork (EV_P) 906loop_fork (EV_P)
767{ 907{
908#if EV_USE_PORT
909 if (method == EVBACKEND_PORT ) port_fork (EV_A);
910#endif
911#if EV_USE_KQUEUE
912 if (method == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
913#endif
768#if EV_USE_EPOLL 914#if EV_USE_EPOLL
769 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 915 if (method == EVBACKEND_EPOLL ) epoll_fork (EV_A);
770#endif
771#if EV_USE_KQUEUE
772 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
773#endif 916#endif
774 917
775 if (ev_is_active (&sigev)) 918 if (ev_is_active (&sigev))
776 { 919 {
777 /* default loop */ 920 /* default loop */
790 postfork = 0; 933 postfork = 0;
791} 934}
792 935
793#if EV_MULTIPLICITY 936#if EV_MULTIPLICITY
794struct ev_loop * 937struct ev_loop *
795ev_loop_new (int methods) 938ev_loop_new (unsigned int flags)
796{ 939{
797 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 940 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
798 941
799 memset (loop, 0, sizeof (struct ev_loop)); 942 memset (loop, 0, sizeof (struct ev_loop));
800 943
801 loop_init (EV_A_ methods); 944 loop_init (EV_A_ flags);
802 945
803 if (ev_method (EV_A)) 946 if (ev_method (EV_A))
804 return loop; 947 return loop;
805 948
806 return 0; 949 return 0;
820} 963}
821 964
822#endif 965#endif
823 966
824#if EV_MULTIPLICITY 967#if EV_MULTIPLICITY
825struct ev_loop default_loop_struct;
826static struct ev_loop *default_loop;
827
828struct ev_loop * 968struct ev_loop *
969ev_default_loop_init (unsigned int flags)
829#else 970#else
830static int default_loop;
831
832int 971int
972ev_default_loop (unsigned int flags)
833#endif 973#endif
834ev_default_loop (int methods)
835{ 974{
836 if (sigpipe [0] == sigpipe [1]) 975 if (sigpipe [0] == sigpipe [1])
837 if (pipe (sigpipe)) 976 if (pipe (sigpipe))
838 return 0; 977 return 0;
839 978
840 if (!default_loop) 979 if (!ev_default_loop_ptr)
841 { 980 {
842#if EV_MULTIPLICITY 981#if EV_MULTIPLICITY
843 struct ev_loop *loop = default_loop = &default_loop_struct; 982 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
844#else 983#else
845 default_loop = 1; 984 ev_default_loop_ptr = 1;
846#endif 985#endif
847 986
848 loop_init (EV_A_ methods); 987 loop_init (EV_A_ flags);
849 988
850 if (ev_method (EV_A)) 989 if (ev_method (EV_A))
851 { 990 {
852 siginit (EV_A); 991 siginit (EV_A);
853 992
854#ifndef WIN32 993#ifndef _WIN32
855 ev_signal_init (&childev, childcb, SIGCHLD); 994 ev_signal_init (&childev, childcb, SIGCHLD);
856 ev_set_priority (&childev, EV_MAXPRI); 995 ev_set_priority (&childev, EV_MAXPRI);
857 ev_signal_start (EV_A_ &childev); 996 ev_signal_start (EV_A_ &childev);
858 ev_unref (EV_A); /* child watcher should not keep loop alive */ 997 ev_unref (EV_A); /* child watcher should not keep loop alive */
859#endif 998#endif
860 } 999 }
861 else 1000 else
862 default_loop = 0; 1001 ev_default_loop_ptr = 0;
863 } 1002 }
864 1003
865 return default_loop; 1004 return ev_default_loop_ptr;
866} 1005}
867 1006
868void 1007void
869ev_default_destroy (void) 1008ev_default_destroy (void)
870{ 1009{
871#if EV_MULTIPLICITY 1010#if EV_MULTIPLICITY
872 struct ev_loop *loop = default_loop; 1011 struct ev_loop *loop = ev_default_loop_ptr;
873#endif 1012#endif
874 1013
875#ifndef WIN32 1014#ifndef _WIN32
876 ev_ref (EV_A); /* child watcher */ 1015 ev_ref (EV_A); /* child watcher */
877 ev_signal_stop (EV_A_ &childev); 1016 ev_signal_stop (EV_A_ &childev);
878#endif 1017#endif
879 1018
880 ev_ref (EV_A); /* signal watcher */ 1019 ev_ref (EV_A); /* signal watcher */
888 1027
889void 1028void
890ev_default_fork (void) 1029ev_default_fork (void)
891{ 1030{
892#if EV_MULTIPLICITY 1031#if EV_MULTIPLICITY
893 struct ev_loop *loop = default_loop; 1032 struct ev_loop *loop = ev_default_loop_ptr;
894#endif 1033#endif
895 1034
896 if (method) 1035 if (method)
897 postfork = 1; 1036 postfork = 1;
898} 1037}
909 return 1; 1048 return 1;
910 1049
911 return 0; 1050 return 0;
912} 1051}
913 1052
914static void 1053inline void
915call_pending (EV_P) 1054call_pending (EV_P)
916{ 1055{
917 int pri; 1056 int pri;
918 1057
919 for (pri = NUMPRI; pri--; ) 1058 for (pri = NUMPRI; pri--; )
920 while (pendingcnt [pri]) 1059 while (pendingcnt [pri])
921 { 1060 {
922 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1061 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
923 1062
924 if (p->w) 1063 if (expect_true (p->w))
925 { 1064 {
926 p->w->pending = 0; 1065 p->w->pending = 0;
927 p->w->cb (EV_A_ p->w, p->events); 1066 EV_CB_INVOKE (p->w, p->events);
928 } 1067 }
929 } 1068 }
930} 1069}
931 1070
932static void 1071inline void
933timers_reify (EV_P) 1072timers_reify (EV_P)
934{ 1073{
935 while (timercnt && ((WT)timers [0])->at <= mn_now) 1074 while (timercnt && ((WT)timers [0])->at <= mn_now)
936 { 1075 {
937 struct ev_timer *w = timers [0]; 1076 struct ev_timer *w = timers [0];
940 1079
941 /* first reschedule or stop timer */ 1080 /* first reschedule or stop timer */
942 if (w->repeat) 1081 if (w->repeat)
943 { 1082 {
944 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1083 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1084
945 ((WT)w)->at = mn_now + w->repeat; 1085 ((WT)w)->at += w->repeat;
1086 if (((WT)w)->at < mn_now)
1087 ((WT)w)->at = mn_now;
1088
946 downheap ((WT *)timers, timercnt, 0); 1089 downheap ((WT *)timers, timercnt, 0);
947 } 1090 }
948 else 1091 else
949 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1092 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
950 1093
951 event (EV_A_ (W)w, EV_TIMEOUT); 1094 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
952 } 1095 }
953} 1096}
954 1097
955static void 1098#if EV_PERIODICS
1099inline void
956periodics_reify (EV_P) 1100periodics_reify (EV_P)
957{ 1101{
958 while (periodiccnt && ((WT)periodics [0])->at <= rt_now) 1102 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
959 { 1103 {
960 struct ev_periodic *w = periodics [0]; 1104 struct ev_periodic *w = periodics [0];
961 1105
962 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1106 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
963 1107
964 /* first reschedule or stop timer */ 1108 /* first reschedule or stop timer */
965 if (w->reschedule_cb) 1109 if (w->reschedule_cb)
966 { 1110 {
967 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); 1111 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
968
969 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); 1112 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
970 downheap ((WT *)periodics, periodiccnt, 0); 1113 downheap ((WT *)periodics, periodiccnt, 0);
971 } 1114 }
972 else if (w->interval) 1115 else if (w->interval)
973 { 1116 {
974 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1117 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
975 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); 1118 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
976 downheap ((WT *)periodics, periodiccnt, 0); 1119 downheap ((WT *)periodics, periodiccnt, 0);
977 } 1120 }
978 else 1121 else
979 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1122 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
980 1123
981 event (EV_A_ (W)w, EV_PERIODIC); 1124 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
982 } 1125 }
983} 1126}
984 1127
985static void 1128static void
986periodics_reschedule (EV_P) 1129periodics_reschedule (EV_P)
991 for (i = 0; i < periodiccnt; ++i) 1134 for (i = 0; i < periodiccnt; ++i)
992 { 1135 {
993 struct ev_periodic *w = periodics [i]; 1136 struct ev_periodic *w = periodics [i];
994 1137
995 if (w->reschedule_cb) 1138 if (w->reschedule_cb)
996 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1139 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
997 else if (w->interval) 1140 else if (w->interval)
998 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1141 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
999 } 1142 }
1000 1143
1001 /* now rebuild the heap */ 1144 /* now rebuild the heap */
1002 for (i = periodiccnt >> 1; i--; ) 1145 for (i = periodiccnt >> 1; i--; )
1003 downheap ((WT *)periodics, periodiccnt, i); 1146 downheap ((WT *)periodics, periodiccnt, i);
1004} 1147}
1148#endif
1005 1149
1006inline int 1150inline int
1007time_update_monotonic (EV_P) 1151time_update_monotonic (EV_P)
1008{ 1152{
1009 mn_now = get_clock (); 1153 mn_now = get_clock ();
1010 1154
1011 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1155 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1012 { 1156 {
1013 rt_now = rtmn_diff + mn_now; 1157 ev_rt_now = rtmn_diff + mn_now;
1014 return 0; 1158 return 0;
1015 } 1159 }
1016 else 1160 else
1017 { 1161 {
1018 now_floor = mn_now; 1162 now_floor = mn_now;
1019 rt_now = ev_time (); 1163 ev_rt_now = ev_time ();
1020 return 1; 1164 return 1;
1021 } 1165 }
1022} 1166}
1023 1167
1024static void 1168inline void
1025time_update (EV_P) 1169time_update (EV_P)
1026{ 1170{
1027 int i; 1171 int i;
1028 1172
1029#if EV_USE_MONOTONIC 1173#if EV_USE_MONOTONIC
1033 { 1177 {
1034 ev_tstamp odiff = rtmn_diff; 1178 ev_tstamp odiff = rtmn_diff;
1035 1179
1036 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1180 for (i = 4; --i; ) /* loop a few times, before making important decisions */
1037 { 1181 {
1038 rtmn_diff = rt_now - mn_now; 1182 rtmn_diff = ev_rt_now - mn_now;
1039 1183
1040 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1184 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1041 return; /* all is well */ 1185 return; /* all is well */
1042 1186
1043 rt_now = ev_time (); 1187 ev_rt_now = ev_time ();
1044 mn_now = get_clock (); 1188 mn_now = get_clock ();
1045 now_floor = mn_now; 1189 now_floor = mn_now;
1046 } 1190 }
1047 1191
1192# if EV_PERIODICS
1048 periodics_reschedule (EV_A); 1193 periodics_reschedule (EV_A);
1194# endif
1049 /* no timer adjustment, as the monotonic clock doesn't jump */ 1195 /* no timer adjustment, as the monotonic clock doesn't jump */
1050 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1196 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1051 } 1197 }
1052 } 1198 }
1053 else 1199 else
1054#endif 1200#endif
1055 { 1201 {
1056 rt_now = ev_time (); 1202 ev_rt_now = ev_time ();
1057 1203
1058 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1204 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1059 { 1205 {
1206#if EV_PERIODICS
1060 periodics_reschedule (EV_A); 1207 periodics_reschedule (EV_A);
1208#endif
1061 1209
1062 /* adjust timers. this is easy, as the offset is the same for all */ 1210 /* adjust timers. this is easy, as the offset is the same for all */
1063 for (i = 0; i < timercnt; ++i) 1211 for (i = 0; i < timercnt; ++i)
1064 ((WT)timers [i])->at += rt_now - mn_now; 1212 ((WT)timers [i])->at += ev_rt_now - mn_now;
1065 } 1213 }
1066 1214
1067 mn_now = rt_now; 1215 mn_now = ev_rt_now;
1068 } 1216 }
1069} 1217}
1070 1218
1071void 1219void
1072ev_ref (EV_P) 1220ev_ref (EV_P)
1086ev_loop (EV_P_ int flags) 1234ev_loop (EV_P_ int flags)
1087{ 1235{
1088 double block; 1236 double block;
1089 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1237 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
1090 1238
1091 do 1239 while (activecnt)
1092 { 1240 {
1093 /* queue check watchers (and execute them) */ 1241 /* queue check watchers (and execute them) */
1094 if (expect_false (preparecnt)) 1242 if (expect_false (preparecnt))
1095 { 1243 {
1096 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1244 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1112 if (expect_true (have_monotonic)) 1260 if (expect_true (have_monotonic))
1113 time_update_monotonic (EV_A); 1261 time_update_monotonic (EV_A);
1114 else 1262 else
1115#endif 1263#endif
1116 { 1264 {
1117 rt_now = ev_time (); 1265 ev_rt_now = ev_time ();
1118 mn_now = rt_now; 1266 mn_now = ev_rt_now;
1119 } 1267 }
1120 1268
1121 if (flags & EVLOOP_NONBLOCK || idlecnt) 1269 if (flags & EVLOOP_NONBLOCK || idlecnt)
1122 block = 0.; 1270 block = 0.;
1123 else 1271 else
1128 { 1276 {
1129 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1277 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1130 if (block > to) block = to; 1278 if (block > to) block = to;
1131 } 1279 }
1132 1280
1281#if EV_PERIODICS
1133 if (periodiccnt) 1282 if (periodiccnt)
1134 { 1283 {
1135 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; 1284 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1136 if (block > to) block = to; 1285 if (block > to) block = to;
1137 } 1286 }
1287#endif
1138 1288
1139 if (block < 0.) block = 0.; 1289 if (expect_false (block < 0.)) block = 0.;
1140 } 1290 }
1141 1291
1142 method_poll (EV_A_ block); 1292 method_poll (EV_A_ block);
1143 1293
1144 /* update rt_now, do magic */ 1294 /* update ev_rt_now, do magic */
1145 time_update (EV_A); 1295 time_update (EV_A);
1146 1296
1147 /* queue pending timers and reschedule them */ 1297 /* queue pending timers and reschedule them */
1148 timers_reify (EV_A); /* relative timers called last */ 1298 timers_reify (EV_A); /* relative timers called last */
1299#if EV_PERIODICS
1149 periodics_reify (EV_A); /* absolute timers called first */ 1300 periodics_reify (EV_A); /* absolute timers called first */
1301#endif
1150 1302
1151 /* queue idle watchers unless io or timers are pending */ 1303 /* queue idle watchers unless io or timers are pending */
1152 if (idlecnt && !any_pending (EV_A)) 1304 if (idlecnt && !any_pending (EV_A))
1153 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1305 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1154 1306
1155 /* queue check watchers, to be executed first */ 1307 /* queue check watchers, to be executed first */
1156 if (checkcnt) 1308 if (expect_false (checkcnt))
1157 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1309 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1158 1310
1159 call_pending (EV_A); 1311 call_pending (EV_A);
1312
1313 if (expect_false (loop_done))
1314 break;
1160 } 1315 }
1161 while (activecnt && !loop_done);
1162 1316
1163 if (loop_done != 2) 1317 if (loop_done != 2)
1164 loop_done = 0; 1318 loop_done = 0;
1165} 1319}
1166 1320
1226void 1380void
1227ev_io_start (EV_P_ struct ev_io *w) 1381ev_io_start (EV_P_ struct ev_io *w)
1228{ 1382{
1229 int fd = w->fd; 1383 int fd = w->fd;
1230 1384
1231 if (ev_is_active (w)) 1385 if (expect_false (ev_is_active (w)))
1232 return; 1386 return;
1233 1387
1234 assert (("ev_io_start called with negative fd", fd >= 0)); 1388 assert (("ev_io_start called with negative fd", fd >= 0));
1235 1389
1236 ev_start (EV_A_ (W)w, 1); 1390 ev_start (EV_A_ (W)w, 1);
1242 1396
1243void 1397void
1244ev_io_stop (EV_P_ struct ev_io *w) 1398ev_io_stop (EV_P_ struct ev_io *w)
1245{ 1399{
1246 ev_clear_pending (EV_A_ (W)w); 1400 ev_clear_pending (EV_A_ (W)w);
1247 if (!ev_is_active (w)) 1401 if (expect_false (!ev_is_active (w)))
1248 return; 1402 return;
1403
1404 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1249 1405
1250 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1406 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1251 ev_stop (EV_A_ (W)w); 1407 ev_stop (EV_A_ (W)w);
1252 1408
1253 fd_change (EV_A_ w->fd); 1409 fd_change (EV_A_ w->fd);
1254} 1410}
1255 1411
1256void 1412void
1257ev_timer_start (EV_P_ struct ev_timer *w) 1413ev_timer_start (EV_P_ struct ev_timer *w)
1258{ 1414{
1259 if (ev_is_active (w)) 1415 if (expect_false (ev_is_active (w)))
1260 return; 1416 return;
1261 1417
1262 ((WT)w)->at += mn_now; 1418 ((WT)w)->at += mn_now;
1263 1419
1264 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1420 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1265 1421
1266 ev_start (EV_A_ (W)w, ++timercnt); 1422 ev_start (EV_A_ (W)w, ++timercnt);
1267 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1423 array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1268 timers [timercnt - 1] = w; 1424 timers [timercnt - 1] = w;
1269 upheap ((WT *)timers, timercnt - 1); 1425 upheap ((WT *)timers, timercnt - 1);
1270 1426
1271 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1427 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1272} 1428}
1273 1429
1274void 1430void
1275ev_timer_stop (EV_P_ struct ev_timer *w) 1431ev_timer_stop (EV_P_ struct ev_timer *w)
1276{ 1432{
1277 ev_clear_pending (EV_A_ (W)w); 1433 ev_clear_pending (EV_A_ (W)w);
1278 if (!ev_is_active (w)) 1434 if (expect_false (!ev_is_active (w)))
1279 return; 1435 return;
1280 1436
1281 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1437 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1282 1438
1283 if (((W)w)->active < timercnt--) 1439 if (expect_true (((W)w)->active < timercnt--))
1284 { 1440 {
1285 timers [((W)w)->active - 1] = timers [timercnt]; 1441 timers [((W)w)->active - 1] = timers [timercnt];
1286 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1442 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1287 } 1443 }
1288 1444
1289 ((WT)w)->at = w->repeat; 1445 ((WT)w)->at -= mn_now;
1290 1446
1291 ev_stop (EV_A_ (W)w); 1447 ev_stop (EV_A_ (W)w);
1292} 1448}
1293 1449
1294void 1450void
1297 if (ev_is_active (w)) 1453 if (ev_is_active (w))
1298 { 1454 {
1299 if (w->repeat) 1455 if (w->repeat)
1300 { 1456 {
1301 ((WT)w)->at = mn_now + w->repeat; 1457 ((WT)w)->at = mn_now + w->repeat;
1302 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1458 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1303 } 1459 }
1304 else 1460 else
1305 ev_timer_stop (EV_A_ w); 1461 ev_timer_stop (EV_A_ w);
1306 } 1462 }
1307 else if (w->repeat) 1463 else if (w->repeat)
1464 {
1465 w->at = w->repeat;
1308 ev_timer_start (EV_A_ w); 1466 ev_timer_start (EV_A_ w);
1467 }
1309} 1468}
1310 1469
1470#if EV_PERIODICS
1311void 1471void
1312ev_periodic_start (EV_P_ struct ev_periodic *w) 1472ev_periodic_start (EV_P_ struct ev_periodic *w)
1313{ 1473{
1314 if (ev_is_active (w)) 1474 if (expect_false (ev_is_active (w)))
1315 return; 1475 return;
1316 1476
1317 if (w->reschedule_cb) 1477 if (w->reschedule_cb)
1318 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1478 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1319 else if (w->interval) 1479 else if (w->interval)
1320 { 1480 {
1321 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1481 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1322 /* this formula differs from the one in periodic_reify because we do not always round up */ 1482 /* this formula differs from the one in periodic_reify because we do not always round up */
1323 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1483 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1324 } 1484 }
1325 1485
1326 ev_start (EV_A_ (W)w, ++periodiccnt); 1486 ev_start (EV_A_ (W)w, ++periodiccnt);
1327 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1487 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1328 periodics [periodiccnt - 1] = w; 1488 periodics [periodiccnt - 1] = w;
1329 upheap ((WT *)periodics, periodiccnt - 1); 1489 upheap ((WT *)periodics, periodiccnt - 1);
1330 1490
1331 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1491 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1332} 1492}
1333 1493
1334void 1494void
1335ev_periodic_stop (EV_P_ struct ev_periodic *w) 1495ev_periodic_stop (EV_P_ struct ev_periodic *w)
1336{ 1496{
1337 ev_clear_pending (EV_A_ (W)w); 1497 ev_clear_pending (EV_A_ (W)w);
1338 if (!ev_is_active (w)) 1498 if (expect_false (!ev_is_active (w)))
1339 return; 1499 return;
1340 1500
1341 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1501 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1342 1502
1343 if (((W)w)->active < periodiccnt--) 1503 if (expect_true (((W)w)->active < periodiccnt--))
1344 { 1504 {
1345 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1505 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1346 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1506 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1347 } 1507 }
1348 1508
1349 ev_stop (EV_A_ (W)w); 1509 ev_stop (EV_A_ (W)w);
1350} 1510}
1351 1511
1352void 1512void
1353ev_periodic_again (EV_P_ struct ev_periodic *w) 1513ev_periodic_again (EV_P_ struct ev_periodic *w)
1354{ 1514{
1515 /* TODO: use adjustheap and recalculation */
1355 ev_periodic_stop (EV_A_ w); 1516 ev_periodic_stop (EV_A_ w);
1356 ev_periodic_start (EV_A_ w); 1517 ev_periodic_start (EV_A_ w);
1357} 1518}
1519#endif
1358 1520
1359void 1521void
1360ev_idle_start (EV_P_ struct ev_idle *w) 1522ev_idle_start (EV_P_ struct ev_idle *w)
1361{ 1523{
1362 if (ev_is_active (w)) 1524 if (expect_false (ev_is_active (w)))
1363 return; 1525 return;
1364 1526
1365 ev_start (EV_A_ (W)w, ++idlecnt); 1527 ev_start (EV_A_ (W)w, ++idlecnt);
1366 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); 1528 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1367 idles [idlecnt - 1] = w; 1529 idles [idlecnt - 1] = w;
1368} 1530}
1369 1531
1370void 1532void
1371ev_idle_stop (EV_P_ struct ev_idle *w) 1533ev_idle_stop (EV_P_ struct ev_idle *w)
1372{ 1534{
1373 ev_clear_pending (EV_A_ (W)w); 1535 ev_clear_pending (EV_A_ (W)w);
1374 if (ev_is_active (w)) 1536 if (expect_false (!ev_is_active (w)))
1375 return; 1537 return;
1376 1538
1377 idles [((W)w)->active - 1] = idles [--idlecnt]; 1539 idles [((W)w)->active - 1] = idles [--idlecnt];
1378 ev_stop (EV_A_ (W)w); 1540 ev_stop (EV_A_ (W)w);
1379} 1541}
1380 1542
1381void 1543void
1382ev_prepare_start (EV_P_ struct ev_prepare *w) 1544ev_prepare_start (EV_P_ struct ev_prepare *w)
1383{ 1545{
1384 if (ev_is_active (w)) 1546 if (expect_false (ev_is_active (w)))
1385 return; 1547 return;
1386 1548
1387 ev_start (EV_A_ (W)w, ++preparecnt); 1549 ev_start (EV_A_ (W)w, ++preparecnt);
1388 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); 1550 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1389 prepares [preparecnt - 1] = w; 1551 prepares [preparecnt - 1] = w;
1390} 1552}
1391 1553
1392void 1554void
1393ev_prepare_stop (EV_P_ struct ev_prepare *w) 1555ev_prepare_stop (EV_P_ struct ev_prepare *w)
1394{ 1556{
1395 ev_clear_pending (EV_A_ (W)w); 1557 ev_clear_pending (EV_A_ (W)w);
1396 if (ev_is_active (w)) 1558 if (expect_false (!ev_is_active (w)))
1397 return; 1559 return;
1398 1560
1399 prepares [((W)w)->active - 1] = prepares [--preparecnt]; 1561 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1400 ev_stop (EV_A_ (W)w); 1562 ev_stop (EV_A_ (W)w);
1401} 1563}
1402 1564
1403void 1565void
1404ev_check_start (EV_P_ struct ev_check *w) 1566ev_check_start (EV_P_ struct ev_check *w)
1405{ 1567{
1406 if (ev_is_active (w)) 1568 if (expect_false (ev_is_active (w)))
1407 return; 1569 return;
1408 1570
1409 ev_start (EV_A_ (W)w, ++checkcnt); 1571 ev_start (EV_A_ (W)w, ++checkcnt);
1410 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); 1572 array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1411 checks [checkcnt - 1] = w; 1573 checks [checkcnt - 1] = w;
1412} 1574}
1413 1575
1414void 1576void
1415ev_check_stop (EV_P_ struct ev_check *w) 1577ev_check_stop (EV_P_ struct ev_check *w)
1416{ 1578{
1417 ev_clear_pending (EV_A_ (W)w); 1579 ev_clear_pending (EV_A_ (W)w);
1418 if (ev_is_active (w)) 1580 if (expect_false (!ev_is_active (w)))
1419 return; 1581 return;
1420 1582
1421 checks [((W)w)->active - 1] = checks [--checkcnt]; 1583 checks [((W)w)->active - 1] = checks [--checkcnt];
1422 ev_stop (EV_A_ (W)w); 1584 ev_stop (EV_A_ (W)w);
1423} 1585}
1428 1590
1429void 1591void
1430ev_signal_start (EV_P_ struct ev_signal *w) 1592ev_signal_start (EV_P_ struct ev_signal *w)
1431{ 1593{
1432#if EV_MULTIPLICITY 1594#if EV_MULTIPLICITY
1433 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1595 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1434#endif 1596#endif
1435 if (ev_is_active (w)) 1597 if (expect_false (ev_is_active (w)))
1436 return; 1598 return;
1437 1599
1438 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1600 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1439 1601
1440 ev_start (EV_A_ (W)w, 1); 1602 ev_start (EV_A_ (W)w, 1);
1441 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 1603 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1442 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1604 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1443 1605
1444 if (!((WL)w)->next) 1606 if (!((WL)w)->next)
1445 { 1607 {
1446#if WIN32 1608#if _WIN32
1447 signal (w->signum, sighandler); 1609 signal (w->signum, sighandler);
1448#else 1610#else
1449 struct sigaction sa; 1611 struct sigaction sa;
1450 sa.sa_handler = sighandler; 1612 sa.sa_handler = sighandler;
1451 sigfillset (&sa.sa_mask); 1613 sigfillset (&sa.sa_mask);
1457 1619
1458void 1620void
1459ev_signal_stop (EV_P_ struct ev_signal *w) 1621ev_signal_stop (EV_P_ struct ev_signal *w)
1460{ 1622{
1461 ev_clear_pending (EV_A_ (W)w); 1623 ev_clear_pending (EV_A_ (W)w);
1462 if (!ev_is_active (w)) 1624 if (expect_false (!ev_is_active (w)))
1463 return; 1625 return;
1464 1626
1465 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1627 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1466 ev_stop (EV_A_ (W)w); 1628 ev_stop (EV_A_ (W)w);
1467 1629
1471 1633
1472void 1634void
1473ev_child_start (EV_P_ struct ev_child *w) 1635ev_child_start (EV_P_ struct ev_child *w)
1474{ 1636{
1475#if EV_MULTIPLICITY 1637#if EV_MULTIPLICITY
1476 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1638 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1477#endif 1639#endif
1478 if (ev_is_active (w)) 1640 if (expect_false (ev_is_active (w)))
1479 return; 1641 return;
1480 1642
1481 ev_start (EV_A_ (W)w, 1); 1643 ev_start (EV_A_ (W)w, 1);
1482 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1644 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1483} 1645}
1484 1646
1485void 1647void
1486ev_child_stop (EV_P_ struct ev_child *w) 1648ev_child_stop (EV_P_ struct ev_child *w)
1487{ 1649{
1488 ev_clear_pending (EV_A_ (W)w); 1650 ev_clear_pending (EV_A_ (W)w);
1489 if (ev_is_active (w)) 1651 if (expect_false (!ev_is_active (w)))
1490 return; 1652 return;
1491 1653
1492 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1654 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1493 ev_stop (EV_A_ (W)w); 1655 ev_stop (EV_A_ (W)w);
1494} 1656}
1531void 1693void
1532ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1694ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1533{ 1695{
1534 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 1696 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1535 1697
1536 if (!once) 1698 if (expect_false (!once))
1699 {
1537 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1700 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1538 else 1701 return;
1539 { 1702 }
1703
1540 once->cb = cb; 1704 once->cb = cb;
1541 once->arg = arg; 1705 once->arg = arg;
1542 1706
1543 ev_watcher_init (&once->io, once_cb_io); 1707 ev_init (&once->io, once_cb_io);
1544 if (fd >= 0) 1708 if (fd >= 0)
1545 { 1709 {
1546 ev_io_set (&once->io, fd, events); 1710 ev_io_set (&once->io, fd, events);
1547 ev_io_start (EV_A_ &once->io); 1711 ev_io_start (EV_A_ &once->io);
1548 } 1712 }
1549 1713
1550 ev_watcher_init (&once->to, once_cb_to); 1714 ev_init (&once->to, once_cb_to);
1551 if (timeout >= 0.) 1715 if (timeout >= 0.)
1552 { 1716 {
1553 ev_timer_set (&once->to, timeout, 0.); 1717 ev_timer_set (&once->to, timeout, 0.);
1554 ev_timer_start (EV_A_ &once->to); 1718 ev_timer_start (EV_A_ &once->to);
1555 }
1556 } 1719 }
1557} 1720}
1558 1721
1722#ifdef __cplusplus
1723}
1724#endif
1725

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