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Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.107 by root, Mon Nov 12 01:20:25 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#ifndef EV_EMBED 31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
36#ifndef EV_STANDALONE
32# include "config.h" 37# include "config.h"
38
39# if HAVE_CLOCK_GETTIME
40# ifndef EV_USE_MONOTONIC
41# define EV_USE_MONOTONIC 1
42# endif
43# ifndef EV_USE_REALTIME
44# define EV_USE_REALTIME 1
45# endif
46# endif
47
48# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
49# define EV_USE_SELECT 1
50# endif
51
52# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
53# define EV_USE_POLL 1
54# endif
55
56# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
57# define EV_USE_EPOLL 1
58# endif
59
60# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
61# define EV_USE_KQUEUE 1
62# endif
63
33#endif 64#endif
34 65
35#include <math.h> 66#include <math.h>
36#include <stdlib.h> 67#include <stdlib.h>
37#include <unistd.h>
38#include <fcntl.h> 68#include <fcntl.h>
39#include <signal.h>
40#include <stddef.h> 69#include <stddef.h>
41 70
42#include <stdio.h> 71#include <stdio.h>
43 72
44#include <assert.h> 73#include <assert.h>
45#include <errno.h> 74#include <errno.h>
46#include <sys/types.h> 75#include <sys/types.h>
76#include <time.h>
77
78#include <signal.h>
79
47#ifndef WIN32 80#ifndef _WIN32
81# include <unistd.h>
82# include <sys/time.h>
48# include <sys/wait.h> 83# include <sys/wait.h>
84#else
85# define WIN32_LEAN_AND_MEAN
86# include <windows.h>
87# ifndef EV_SELECT_IS_WINSOCKET
88# define EV_SELECT_IS_WINSOCKET 1
49#endif 89# endif
50#include <sys/time.h> 90#endif
51#include <time.h>
52 91
53/**/ 92/**/
54 93
55#ifndef EV_USE_MONOTONIC 94#ifndef EV_USE_MONOTONIC
56# define EV_USE_MONOTONIC 1 95# define EV_USE_MONOTONIC 1
57#endif 96#endif
58 97
59#ifndef EV_USE_SELECT 98#ifndef EV_USE_SELECT
60# define EV_USE_SELECT 1 99# define EV_USE_SELECT 1
100# define EV_SELECT_USE_FD_SET 1
61#endif 101#endif
62 102
63#ifndef EV_USEV_POLL 103#ifndef EV_USE_POLL
64# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ 104# ifdef _WIN32
105# define EV_USE_POLL 0
106# else
107# define EV_USE_POLL 1
108# endif
65#endif 109#endif
66 110
67#ifndef EV_USE_EPOLL 111#ifndef EV_USE_EPOLL
68# define EV_USE_EPOLL 0 112# define EV_USE_EPOLL 0
69#endif 113#endif
… …
75#ifndef EV_USE_REALTIME 119#ifndef EV_USE_REALTIME
76# define EV_USE_REALTIME 1 120# define EV_USE_REALTIME 1
77#endif 121#endif
78 122
79/**/ 123/**/
124
125/* darwin simply cannot be helped */
126#ifdef __APPLE__
127# undef EV_USE_POLL
128# undef EV_USE_KQUEUE
129#endif
80 130
81#ifndef CLOCK_MONOTONIC 131#ifndef CLOCK_MONOTONIC
82# undef EV_USE_MONOTONIC 132# undef EV_USE_MONOTONIC
83# define EV_USE_MONOTONIC 0 133# define EV_USE_MONOTONIC 0
84#endif 134#endif
85 135
86#ifndef CLOCK_REALTIME 136#ifndef CLOCK_REALTIME
87# undef EV_USE_REALTIME 137# undef EV_USE_REALTIME
88# define EV_USE_REALTIME 0 138# define EV_USE_REALTIME 0
139#endif
140
141#if EV_SELECT_IS_WINSOCKET
142# include <winsock.h>
89#endif 143#endif
90 144
91/**/ 145/**/
92 146
93#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 147#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ 148#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ 149#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ 150/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
97 151
98#ifndef EV_EMBED 152#ifdef EV_H
153# include EV_H
154#else
99# include "ev.h" 155# include "ev.h"
100#endif 156#endif
101 157
102#if __GNUC__ >= 3 158#if __GNUC__ >= 3
103# define expect(expr,value) __builtin_expect ((expr),(value)) 159# define expect(expr,value) __builtin_expect ((expr),(value))
… …
111#define expect_true(expr) expect ((expr) != 0, 1) 167#define expect_true(expr) expect ((expr) != 0, 1)
112 168
113#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 169#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
114#define ABSPRI(w) ((w)->priority - EV_MINPRI) 170#define ABSPRI(w) ((w)->priority - EV_MINPRI)
115 171
172#define EMPTY /* required for microsofts broken pseudo-c compiler */
173
116typedef struct ev_watcher *W; 174typedef struct ev_watcher *W;
117typedef struct ev_watcher_list *WL; 175typedef struct ev_watcher_list *WL;
118typedef struct ev_watcher_time *WT; 176typedef struct ev_watcher_time *WT;
119 177
120static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 178static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
121 179
180#ifdef _WIN32
181# include "ev_win32.c"
182#endif
183
122/*****************************************************************************/ 184/*****************************************************************************/
123 185
186static void (*syserr_cb)(const char *msg);
187
188void ev_set_syserr_cb (void (*cb)(const char *msg))
189{
190 syserr_cb = cb;
191}
192
193static void
194syserr (const char *msg)
195{
196 if (!msg)
197 msg = "(libev) system error";
198
199 if (syserr_cb)
200 syserr_cb (msg);
201 else
202 {
203 perror (msg);
204 abort ();
205 }
206}
207
208static void *(*alloc)(void *ptr, long size);
209
210void ev_set_allocator (void *(*cb)(void *ptr, long size))
211{
212 alloc = cb;
213}
214
215static void *
216ev_realloc (void *ptr, long size)
217{
218 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
219
220 if (!ptr && size)
221 {
222 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
223 abort ();
224 }
225
226 return ptr;
227}
228
229#define ev_malloc(size) ev_realloc (0, (size))
230#define ev_free(ptr) ev_realloc ((ptr), 0)
231
232/*****************************************************************************/
233
124typedef struct 234typedef struct
125{ 235{
126 struct ev_watcher_list *head; 236 WL head;
127 unsigned char events; 237 unsigned char events;
128 unsigned char reify; 238 unsigned char reify;
239#if EV_SELECT_IS_WINSOCKET
240 SOCKET handle;
241#endif
129} ANFD; 242} ANFD;
130 243
131typedef struct 244typedef struct
132{ 245{
133 W w; 246 W w;
134 int events; 247 int events;
135} ANPENDING; 248} ANPENDING;
136 249
137#if EV_MULTIPLICITY 250#if EV_MULTIPLICITY
138 251
139struct ev_loop 252 struct ev_loop
140{ 253 {
254 ev_tstamp ev_rt_now;
255 #define ev_rt_now ((loop)->ev_rt_now)
141# define VAR(name,decl) decl; 256 #define VAR(name,decl) decl;
142# include "ev_vars.h" 257 #include "ev_vars.h"
143};
144# undef VAR 258 #undef VAR
259 };
145# include "ev_wrap.h" 260 #include "ev_wrap.h"
261
262 struct ev_loop default_loop_struct;
263 static struct ev_loop *default_loop;
146 264
147#else 265#else
148 266
267 ev_tstamp ev_rt_now;
149# define VAR(name,decl) static decl; 268 #define VAR(name,decl) static decl;
150# include "ev_vars.h" 269 #include "ev_vars.h"
151# undef VAR 270 #undef VAR
271
272 static int default_loop;
152 273
153#endif 274#endif
154 275
155/*****************************************************************************/ 276/*****************************************************************************/
156 277
157inline ev_tstamp 278ev_tstamp
158ev_time (void) 279ev_time (void)
159{ 280{
160#if EV_USE_REALTIME 281#if EV_USE_REALTIME
161 struct timespec ts; 282 struct timespec ts;
162 clock_gettime (CLOCK_REALTIME, &ts); 283 clock_gettime (CLOCK_REALTIME, &ts);
… …
181#endif 302#endif
182 303
183 return ev_time (); 304 return ev_time ();
184} 305}
185 306
307#if EV_MULTIPLICITY
186ev_tstamp 308ev_tstamp
187ev_now (EV_P) 309ev_now (EV_P)
188{ 310{
189 return rt_now; 311 return ev_rt_now;
190} 312}
313#endif
191 314
192#define array_roundsize(base,n) ((n) | 4 & ~3) 315#define array_roundsize(type,n) ((n) | 4 & ~3)
193 316
194#define array_needsize(base,cur,cnt,init) \ 317#define array_needsize(type,base,cur,cnt,init) \
195 if (expect_false ((cnt) > cur)) \ 318 if (expect_false ((cnt) > cur)) \
196 { \ 319 { \
197 int newcnt = cur; \ 320 int newcnt = cur; \
198 do \ 321 do \
199 { \ 322 { \
200 newcnt = array_roundsize (base, newcnt << 1); \ 323 newcnt = array_roundsize (type, newcnt << 1); \
201 } \ 324 } \
202 while ((cnt) > newcnt); \ 325 while ((cnt) > newcnt); \
203 \ 326 \
204 base = realloc (base, sizeof (*base) * (newcnt)); \ 327 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
205 init (base + cur, newcnt - cur); \ 328 init (base + cur, newcnt - cur); \
206 cur = newcnt; \ 329 cur = newcnt; \
207 } 330 }
331
332#define array_slim(type,stem) \
333 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
334 { \
335 stem ## max = array_roundsize (stem ## cnt >> 1); \
336 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
337 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
338 }
339
340#define array_free(stem, idx) \
341 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
208 342
209/*****************************************************************************/ 343/*****************************************************************************/
210 344
211static void 345static void
212anfds_init (ANFD *base, int count) 346anfds_init (ANFD *base, int count)
… …
219 353
220 ++base; 354 ++base;
221 } 355 }
222} 356}
223 357
224static void 358void
225event (EV_P_ W w, int events) 359ev_feed_event (EV_P_ void *w, int revents)
226{ 360{
361 W w_ = (W)w;
362
227 if (w->pending) 363 if (w_->pending)
228 { 364 {
229 pendings [ABSPRI (w)][w->pending - 1].events |= events; 365 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
230 return; 366 return;
231 } 367 }
232 368
233 w->pending = ++pendingcnt [ABSPRI (w)]; 369 w_->pending = ++pendingcnt [ABSPRI (w_)];
234 array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); 370 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
235 pendings [ABSPRI (w)][w->pending - 1].w = w; 371 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
236 pendings [ABSPRI (w)][w->pending - 1].events = events; 372 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
237} 373}
238 374
239static void 375static void
240queue_events (EV_P_ W *events, int eventcnt, int type) 376queue_events (EV_P_ W *events, int eventcnt, int type)
241{ 377{
242 int i; 378 int i;
243 379
244 for (i = 0; i < eventcnt; ++i) 380 for (i = 0; i < eventcnt; ++i)
245 event (EV_A_ events [i], type); 381 ev_feed_event (EV_A_ events [i], type);
246} 382}
247 383
248static void 384inline void
249fd_event (EV_P_ int fd, int events) 385fd_event (EV_P_ int fd, int revents)
250{ 386{
251 ANFD *anfd = anfds + fd; 387 ANFD *anfd = anfds + fd;
252 struct ev_io *w; 388 struct ev_io *w;
253 389
254 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 390 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
255 { 391 {
256 int ev = w->events & events; 392 int ev = w->events & revents;
257 393
258 if (ev) 394 if (ev)
259 event (EV_A_ (W)w, ev); 395 ev_feed_event (EV_A_ (W)w, ev);
260 } 396 }
397}
398
399void
400ev_feed_fd_event (EV_P_ int fd, int revents)
401{
402 fd_event (EV_A_ fd, revents);
261} 403}
262 404
263/*****************************************************************************/ 405/*****************************************************************************/
264 406
265static void 407static void
… …
276 int events = 0; 418 int events = 0;
277 419
278 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 420 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
279 events |= w->events; 421 events |= w->events;
280 422
423#if EV_SELECT_IS_WINSOCKET
424 if (events)
425 {
426 unsigned long argp;
427 anfd->handle = _get_osfhandle (fd);
428 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
429 }
430#endif
431
281 anfd->reify = 0; 432 anfd->reify = 0;
282 433
283 if (anfd->events != events)
284 {
285 method_modify (EV_A_ fd, anfd->events, events); 434 method_modify (EV_A_ fd, anfd->events, events);
286 anfd->events = events; 435 anfd->events = events;
287 }
288 } 436 }
289 437
290 fdchangecnt = 0; 438 fdchangecnt = 0;
291} 439}
292 440
293static void 441static void
294fd_change (EV_P_ int fd) 442fd_change (EV_P_ int fd)
295{ 443{
296 if (anfds [fd].reify || fdchangecnt < 0) 444 if (anfds [fd].reify)
297 return; 445 return;
298 446
299 anfds [fd].reify = 1; 447 anfds [fd].reify = 1;
300 448
301 ++fdchangecnt; 449 ++fdchangecnt;
302 array_needsize (fdchanges, fdchangemax, fdchangecnt, ); 450 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
303 fdchanges [fdchangecnt - 1] = fd; 451 fdchanges [fdchangecnt - 1] = fd;
304} 452}
305 453
306static void 454static void
307fd_kill (EV_P_ int fd) 455fd_kill (EV_P_ int fd)
… …
309 struct ev_io *w; 457 struct ev_io *w;
310 458
311 while ((w = (struct ev_io *)anfds [fd].head)) 459 while ((w = (struct ev_io *)anfds [fd].head))
312 { 460 {
313 ev_io_stop (EV_A_ w); 461 ev_io_stop (EV_A_ w);
314 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 462 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
315 } 463 }
464}
465
466static int
467fd_valid (int fd)
468{
469#ifdef _WIN32
470 return _get_osfhandle (fd) != -1;
471#else
472 return fcntl (fd, F_GETFD) != -1;
473#endif
316} 474}
317 475
318/* called on EBADF to verify fds */ 476/* called on EBADF to verify fds */
319static void 477static void
320fd_ebadf (EV_P) 478fd_ebadf (EV_P)
321{ 479{
322 int fd; 480 int fd;
323 481
324 for (fd = 0; fd < anfdmax; ++fd) 482 for (fd = 0; fd < anfdmax; ++fd)
325 if (anfds [fd].events) 483 if (anfds [fd].events)
326 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 484 if (!fd_valid (fd) == -1 && errno == EBADF)
327 fd_kill (EV_A_ fd); 485 fd_kill (EV_A_ fd);
328} 486}
329 487
330/* called on ENOMEM in select/poll to kill some fds and retry */ 488/* called on ENOMEM in select/poll to kill some fds and retry */
331static void 489static void
332fd_enomem (EV_P) 490fd_enomem (EV_P)
333{ 491{
334 int fd = anfdmax; 492 int fd;
335 493
336 while (fd--) 494 for (fd = anfdmax; fd--; )
337 if (anfds [fd].events) 495 if (anfds [fd].events)
338 { 496 {
339 close (fd);
340 fd_kill (EV_A_ fd); 497 fd_kill (EV_A_ fd);
341 return; 498 return;
342 } 499 }
343} 500}
344 501
345/* susually called after fork if method needs to re-arm all fds from scratch */ 502/* usually called after fork if method needs to re-arm all fds from scratch */
346static void 503static void
347fd_rearm_all (EV_P) 504fd_rearm_all (EV_P)
348{ 505{
349 int fd; 506 int fd;
350 507
351 /* this should be highly optimised to not do anything but set a flag */ 508 /* this should be highly optimised to not do anything but set a flag */
352 for (fd = 0; fd < anfdmax; ++fd) 509 for (fd = 0; fd < anfdmax; ++fd)
353 if (anfds [fd].events) 510 if (anfds [fd].events)
354 { 511 {
355 anfds [fd].events = 0; 512 anfds [fd].events = 0;
356 fd_change (fd); 513 fd_change (EV_A_ fd);
357 } 514 }
358} 515}
359 516
360/*****************************************************************************/ 517/*****************************************************************************/
361 518
… …
365 WT w = heap [k]; 522 WT w = heap [k];
366 523
367 while (k && heap [k >> 1]->at > w->at) 524 while (k && heap [k >> 1]->at > w->at)
368 { 525 {
369 heap [k] = heap [k >> 1]; 526 heap [k] = heap [k >> 1];
370 heap [k]->active = k + 1; 527 ((W)heap [k])->active = k + 1;
371 k >>= 1; 528 k >>= 1;
372 } 529 }
373 530
374 heap [k] = w; 531 heap [k] = w;
375 heap [k]->active = k + 1; 532 ((W)heap [k])->active = k + 1;
376 533
377} 534}
378 535
379static void 536static void
380downheap (WT *heap, int N, int k) 537downheap (WT *heap, int N, int k)
… …
390 547
391 if (w->at <= heap [j]->at) 548 if (w->at <= heap [j]->at)
392 break; 549 break;
393 550
394 heap [k] = heap [j]; 551 heap [k] = heap [j];
395 heap [k]->active = k + 1; 552 ((W)heap [k])->active = k + 1;
396 k = j; 553 k = j;
397 } 554 }
398 555
399 heap [k] = w; 556 heap [k] = w;
400 heap [k]->active = k + 1; 557 ((W)heap [k])->active = k + 1;
558}
559
560inline void
561adjustheap (WT *heap, int N, int k)
562{
563 upheap (heap, k);
564 downheap (heap, N, k);
401} 565}
402 566
403/*****************************************************************************/ 567/*****************************************************************************/
404 568
405typedef struct 569typedef struct
406{ 570{
407 struct ev_watcher_list *head; 571 WL head;
408 sig_atomic_t volatile gotsig; 572 sig_atomic_t volatile gotsig;
409} ANSIG; 573} ANSIG;
410 574
411static ANSIG *signals; 575static ANSIG *signals;
412static int signalmax; 576static int signalmax;
413 577
414static int sigpipe [2]; 578static int sigpipe [2];
415static sig_atomic_t volatile gotsig; 579static sig_atomic_t volatile gotsig;
580static struct ev_io sigev;
416 581
417static void 582static void
418signals_init (ANSIG *base, int count) 583signals_init (ANSIG *base, int count)
419{ 584{
420 while (count--) 585 while (count--)
… …
427} 592}
428 593
429static void 594static void
430sighandler (int signum) 595sighandler (int signum)
431{ 596{
597#if _WIN32
598 signal (signum, sighandler);
599#endif
600
432 signals [signum - 1].gotsig = 1; 601 signals [signum - 1].gotsig = 1;
433 602
434 if (!gotsig) 603 if (!gotsig)
435 { 604 {
436 int old_errno = errno; 605 int old_errno = errno;
… …
438 write (sigpipe [1], &signum, 1); 607 write (sigpipe [1], &signum, 1);
439 errno = old_errno; 608 errno = old_errno;
440 } 609 }
441} 610}
442 611
612void
613ev_feed_signal_event (EV_P_ int signum)
614{
615 WL w;
616
617#if EV_MULTIPLICITY
618 assert (("feeding signal events is only supported in the default loop", loop == default_loop));
619#endif
620
621 --signum;
622
623 if (signum < 0 || signum >= signalmax)
624 return;
625
626 signals [signum].gotsig = 0;
627
628 for (w = signals [signum].head; w; w = w->next)
629 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
630}
631
443static void 632static void
444sigcb (EV_P_ struct ev_io *iow, int revents) 633sigcb (EV_P_ struct ev_io *iow, int revents)
445{ 634{
446 struct ev_watcher_list *w;
447 int signum; 635 int signum;
448 636
449 read (sigpipe [0], &revents, 1); 637 read (sigpipe [0], &revents, 1);
450 gotsig = 0; 638 gotsig = 0;
451 639
452 for (signum = signalmax; signum--; ) 640 for (signum = signalmax; signum--; )
453 if (signals [signum].gotsig) 641 if (signals [signum].gotsig)
454 { 642 ev_feed_signal_event (EV_A_ signum + 1);
455 signals [signum].gotsig = 0; 643}
456 644
457 for (w = signals [signum].head; w; w = w->next) 645inline void
458 event (EV_A_ (W)w, EV_SIGNAL); 646fd_intern (int fd)
459 } 647{
648#ifdef _WIN32
649 int arg = 1;
650 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
651#else
652 fcntl (fd, F_SETFD, FD_CLOEXEC);
653 fcntl (fd, F_SETFL, O_NONBLOCK);
654#endif
460} 655}
461 656
462static void 657static void
463siginit (EV_P) 658siginit (EV_P)
464{ 659{
465#ifndef WIN32 660 fd_intern (sigpipe [0]);
466 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 661 fd_intern (sigpipe [1]);
467 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
468
469 /* rather than sort out wether we really need nb, set it */
470 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
471 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
472#endif
473 662
474 ev_io_set (&sigev, sigpipe [0], EV_READ); 663 ev_io_set (&sigev, sigpipe [0], EV_READ);
475 ev_io_start (EV_A_ &sigev); 664 ev_io_start (EV_A_ &sigev);
476 ev_unref (EV_A); /* child watcher should not keep loop alive */ 665 ev_unref (EV_A); /* child watcher should not keep loop alive */
477} 666}
478 667
479/*****************************************************************************/ 668/*****************************************************************************/
480 669
670static struct ev_child *childs [PID_HASHSIZE];
671
481#ifndef WIN32 672#ifndef _WIN32
673
674static struct ev_signal childev;
482 675
483#ifndef WCONTINUED 676#ifndef WCONTINUED
484# define WCONTINUED 0 677# define WCONTINUED 0
485#endif 678#endif
486 679
… …
490 struct ev_child *w; 683 struct ev_child *w;
491 684
492 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 685 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
493 if (w->pid == pid || !w->pid) 686 if (w->pid == pid || !w->pid)
494 { 687 {
495 w->priority = sw->priority; /* need to do it *now* */ 688 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
496 w->rpid = pid; 689 w->rpid = pid;
497 w->rstatus = status; 690 w->rstatus = status;
498 event (EV_A_ (W)w, EV_CHILD); 691 ev_feed_event (EV_A_ (W)w, EV_CHILD);
499 } 692 }
500} 693}
501 694
502static void 695static void
503childcb (EV_P_ struct ev_signal *sw, int revents) 696childcb (EV_P_ struct ev_signal *sw, int revents)
… …
505 int pid, status; 698 int pid, status;
506 699
507 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 700 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
508 { 701 {
509 /* make sure we are called again until all childs have been reaped */ 702 /* make sure we are called again until all childs have been reaped */
510 event (EV_A_ (W)sw, EV_SIGNAL); 703 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
511 704
512 child_reap (EV_A_ sw, pid, pid, status); 705 child_reap (EV_A_ sw, pid, pid, status);
513 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 706 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
514 } 707 }
515} 708}
… …
522# include "ev_kqueue.c" 715# include "ev_kqueue.c"
523#endif 716#endif
524#if EV_USE_EPOLL 717#if EV_USE_EPOLL
525# include "ev_epoll.c" 718# include "ev_epoll.c"
526#endif 719#endif
527#if EV_USEV_POLL 720#if EV_USE_POLL
528# include "ev_poll.c" 721# include "ev_poll.c"
529#endif 722#endif
530#if EV_USE_SELECT 723#if EV_USE_SELECT
531# include "ev_select.c" 724# include "ev_select.c"
532#endif 725#endif
… …
545 738
546/* return true if we are running with elevated privileges and should ignore env variables */ 739/* return true if we are running with elevated privileges and should ignore env variables */
547static int 740static int
548enable_secure (void) 741enable_secure (void)
549{ 742{
550#ifdef WIN32 743#ifdef _WIN32
551 return 0; 744 return 0;
552#else 745#else
553 return getuid () != geteuid () 746 return getuid () != geteuid ()
554 || getgid () != getegid (); 747 || getgid () != getegid ();
555#endif 748#endif
… …
572 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 765 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
573 have_monotonic = 1; 766 have_monotonic = 1;
574 } 767 }
575#endif 768#endif
576 769
577 rt_now = ev_time (); 770 ev_rt_now = ev_time ();
578 mn_now = get_clock (); 771 mn_now = get_clock ();
579 now_floor = mn_now; 772 now_floor = mn_now;
580 rtmn_diff = rt_now - mn_now; 773 rtmn_diff = ev_rt_now - mn_now;
581 774
582 if (methods == EVMETHOD_AUTO) 775 if (methods == EVMETHOD_AUTO)
583 if (!enable_secure () && getenv ("LIBEV_METHODS")) 776 if (!enable_secure () && getenv ("LIBEV_METHODS"))
584 methods = atoi (getenv ("LIBEV_METHODS")); 777 methods = atoi (getenv ("LIBEV_METHODS"));
585 else 778 else
… …
590 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 783 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
591#endif 784#endif
592#if EV_USE_EPOLL 785#if EV_USE_EPOLL
593 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 786 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
594#endif 787#endif
595#if EV_USEV_POLL 788#if EV_USE_POLL
596 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 789 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
597#endif 790#endif
598#if EV_USE_SELECT 791#if EV_USE_SELECT
599 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 792 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
600#endif 793#endif
794
795 ev_init (&sigev, sigcb);
796 ev_set_priority (&sigev, EV_MAXPRI);
601 } 797 }
602} 798}
603 799
604void 800void
605loop_destroy (EV_P) 801loop_destroy (EV_P)
606{ 802{
803 int i;
804
607#if EV_USE_KQUEUE 805#if EV_USE_KQUEUE
608 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 806 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
609#endif 807#endif
610#if EV_USE_EPOLL 808#if EV_USE_EPOLL
611 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 809 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
612#endif 810#endif
613#if EV_USEV_POLL 811#if EV_USE_POLL
614 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 812 if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
615#endif 813#endif
616#if EV_USE_SELECT 814#if EV_USE_SELECT
617 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 815 if (method == EVMETHOD_SELECT) select_destroy (EV_A);
618#endif 816#endif
619 817
818 for (i = NUMPRI; i--; )
819 array_free (pending, [i]);
820
821 /* have to use the microsoft-never-gets-it-right macro */
822 array_free (fdchange, EMPTY);
823 array_free (timer, EMPTY);
824#if EV_PERIODICS
825 array_free (periodic, EMPTY);
826#endif
827 array_free (idle, EMPTY);
828 array_free (prepare, EMPTY);
829 array_free (check, EMPTY);
830
620 method = 0; 831 method = 0;
621 /*TODO*/
622} 832}
623 833
624void 834static void
625loop_fork (EV_P) 835loop_fork (EV_P)
626{ 836{
627 /*TODO*/
628#if EV_USE_EPOLL 837#if EV_USE_EPOLL
629 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 838 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
630#endif 839#endif
631#if EV_USE_KQUEUE 840#if EV_USE_KQUEUE
632 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 841 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
633#endif 842#endif
843
844 if (ev_is_active (&sigev))
845 {
846 /* default loop */
847
848 ev_ref (EV_A);
849 ev_io_stop (EV_A_ &sigev);
850 close (sigpipe [0]);
851 close (sigpipe [1]);
852
853 while (pipe (sigpipe))
854 syserr ("(libev) error creating pipe");
855
856 siginit (EV_A);
857 }
858
859 postfork = 0;
634} 860}
635 861
636#if EV_MULTIPLICITY 862#if EV_MULTIPLICITY
637struct ev_loop * 863struct ev_loop *
638ev_loop_new (int methods) 864ev_loop_new (int methods)
639{ 865{
640 struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); 866 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
867
868 memset (loop, 0, sizeof (struct ev_loop));
641 869
642 loop_init (EV_A_ methods); 870 loop_init (EV_A_ methods);
643 871
644 if (ev_methods (EV_A)) 872 if (ev_method (EV_A))
645 return loop; 873 return loop;
646 874
647 return 0; 875 return 0;
648} 876}
649 877
650void 878void
651ev_loop_destroy (EV_P) 879ev_loop_destroy (EV_P)
652{ 880{
653 loop_destroy (EV_A); 881 loop_destroy (EV_A);
654 free (loop); 882 ev_free (loop);
655} 883}
656 884
657void 885void
658ev_loop_fork (EV_P) 886ev_loop_fork (EV_P)
659{ 887{
660 loop_fork (EV_A); 888 postfork = 1;
661} 889}
662 890
663#endif 891#endif
664 892
665#if EV_MULTIPLICITY 893#if EV_MULTIPLICITY
666struct ev_loop default_loop_struct;
667static struct ev_loop *default_loop;
668
669struct ev_loop * 894struct ev_loop *
670#else 895#else
671static int default_loop;
672
673int 896int
674#endif 897#endif
675ev_default_loop (int methods) 898ev_default_loop (int methods)
676{ 899{
677 if (sigpipe [0] == sigpipe [1]) 900 if (sigpipe [0] == sigpipe [1])
… …
688 911
689 loop_init (EV_A_ methods); 912 loop_init (EV_A_ methods);
690 913
691 if (ev_method (EV_A)) 914 if (ev_method (EV_A))
692 { 915 {
693 ev_watcher_init (&sigev, sigcb);
694 ev_set_priority (&sigev, EV_MAXPRI);
695 siginit (EV_A); 916 siginit (EV_A);
696 917
697#ifndef WIN32 918#ifndef _WIN32
698 ev_signal_init (&childev, childcb, SIGCHLD); 919 ev_signal_init (&childev, childcb, SIGCHLD);
699 ev_set_priority (&childev, EV_MAXPRI); 920 ev_set_priority (&childev, EV_MAXPRI);
700 ev_signal_start (EV_A_ &childev); 921 ev_signal_start (EV_A_ &childev);
701 ev_unref (EV_A); /* child watcher should not keep loop alive */ 922 ev_unref (EV_A); /* child watcher should not keep loop alive */
702#endif 923#endif
… …
713{ 934{
714#if EV_MULTIPLICITY 935#if EV_MULTIPLICITY
715 struct ev_loop *loop = default_loop; 936 struct ev_loop *loop = default_loop;
716#endif 937#endif
717 938
939#ifndef _WIN32
718 ev_ref (EV_A); /* child watcher */ 940 ev_ref (EV_A); /* child watcher */
719 ev_signal_stop (EV_A_ &childev); 941 ev_signal_stop (EV_A_ &childev);
942#endif
720 943
721 ev_ref (EV_A); /* signal watcher */ 944 ev_ref (EV_A); /* signal watcher */
722 ev_io_stop (EV_A_ &sigev); 945 ev_io_stop (EV_A_ &sigev);
723 946
724 close (sigpipe [0]); sigpipe [0] = 0; 947 close (sigpipe [0]); sigpipe [0] = 0;
… …
726 949
727 loop_destroy (EV_A); 950 loop_destroy (EV_A);
728} 951}
729 952
730void 953void
731ev_default_fork (EV_P) 954ev_default_fork (void)
732{ 955{
733 loop_fork (EV_A); 956#if EV_MULTIPLICITY
957 struct ev_loop *loop = default_loop;
958#endif
734 959
735 ev_io_stop (EV_A_ &sigev); 960 if (method)
736 close (sigpipe [0]); 961 postfork = 1;
737 close (sigpipe [1]);
738 pipe (sigpipe);
739
740 ev_ref (EV_A); /* signal watcher */
741 siginit (EV_A);
742} 962}
743 963
744/*****************************************************************************/ 964/*****************************************************************************/
965
966static int
967any_pending (EV_P)
968{
969 int pri;
970
971 for (pri = NUMPRI; pri--; )
972 if (pendingcnt [pri])
973 return 1;
974
975 return 0;
976}
745 977
746static void 978static void
747call_pending (EV_P) 979call_pending (EV_P)
748{ 980{
749 int pri; 981 int pri;
… …
754 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 986 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
755 987
756 if (p->w) 988 if (p->w)
757 { 989 {
758 p->w->pending = 0; 990 p->w->pending = 0;
759 p->w->cb (EV_A_ p->w, p->events); 991 EV_CB_INVOKE (p->w, p->events);
760 } 992 }
761 } 993 }
762} 994}
763 995
764static void 996static void
765timers_reify (EV_P) 997timers_reify (EV_P)
766{ 998{
767 while (timercnt && timers [0]->at <= mn_now) 999 while (timercnt && ((WT)timers [0])->at <= mn_now)
768 { 1000 {
769 struct ev_timer *w = timers [0]; 1001 struct ev_timer *w = timers [0];
1002
1003 assert (("inactive timer on timer heap detected", ev_is_active (w)));
770 1004
771 /* first reschedule or stop timer */ 1005 /* first reschedule or stop timer */
772 if (w->repeat) 1006 if (w->repeat)
773 { 1007 {
774 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1008 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1009
775 w->at = mn_now + w->repeat; 1010 ((WT)w)->at += w->repeat;
1011 if (((WT)w)->at < mn_now)
1012 ((WT)w)->at = mn_now;
1013
776 downheap ((WT *)timers, timercnt, 0); 1014 downheap ((WT *)timers, timercnt, 0);
777 } 1015 }
778 else 1016 else
779 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1017 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
780 1018
781 event (EV_A_ (W)w, EV_TIMEOUT); 1019 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
782 } 1020 }
783} 1021}
784 1022
1023#if EV_PERIODICS
785static void 1024static void
786periodics_reify (EV_P) 1025periodics_reify (EV_P)
787{ 1026{
788 while (periodiccnt && periodics [0]->at <= rt_now) 1027 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
789 { 1028 {
790 struct ev_periodic *w = periodics [0]; 1029 struct ev_periodic *w = periodics [0];
791 1030
1031 assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1032
792 /* first reschedule or stop timer */ 1033 /* first reschedule or stop timer */
793 if (w->interval) 1034 if (w->reschedule_cb)
794 { 1035 {
1036 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1037
1038 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1039 downheap ((WT *)periodics, periodiccnt, 0);
1040 }
1041 else if (w->interval)
1042 {
795 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; 1043 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
796 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); 1044 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
797 downheap ((WT *)periodics, periodiccnt, 0); 1045 downheap ((WT *)periodics, periodiccnt, 0);
798 } 1046 }
799 else 1047 else
800 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1048 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
801 1049
802 event (EV_A_ (W)w, EV_PERIODIC); 1050 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
803 } 1051 }
804} 1052}
805 1053
806static void 1054static void
807periodics_reschedule (EV_P) 1055periodics_reschedule (EV_P)
… …
811 /* adjust periodics after time jump */ 1059 /* adjust periodics after time jump */
812 for (i = 0; i < periodiccnt; ++i) 1060 for (i = 0; i < periodiccnt; ++i)
813 { 1061 {
814 struct ev_periodic *w = periodics [i]; 1062 struct ev_periodic *w = periodics [i];
815 1063
1064 if (w->reschedule_cb)
1065 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
816 if (w->interval) 1066 else if (w->interval)
817 {
818 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; 1067 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
819
820 if (fabs (diff) >= 1e-4)
821 {
822 ev_periodic_stop (EV_A_ w);
823 ev_periodic_start (EV_A_ w);
824
825 i = 0; /* restart loop, inefficient, but time jumps should be rare */
826 }
827 }
828 } 1068 }
1069
1070 /* now rebuild the heap */
1071 for (i = periodiccnt >> 1; i--; )
1072 downheap ((WT *)periodics, periodiccnt, i);
829} 1073}
1074#endif
830 1075
831inline int 1076inline int
832time_update_monotonic (EV_P) 1077time_update_monotonic (EV_P)
833{ 1078{
834 mn_now = get_clock (); 1079 mn_now = get_clock ();
835 1080
836 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1081 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
837 { 1082 {
838 rt_now = rtmn_diff + mn_now; 1083 ev_rt_now = rtmn_diff + mn_now;
839 return 0; 1084 return 0;
840 } 1085 }
841 else 1086 else
842 { 1087 {
843 now_floor = mn_now; 1088 now_floor = mn_now;
844 rt_now = ev_time (); 1089 ev_rt_now = ev_time ();
845 return 1; 1090 return 1;
846 } 1091 }
847} 1092}
848 1093
849static void 1094static void
… …
858 { 1103 {
859 ev_tstamp odiff = rtmn_diff; 1104 ev_tstamp odiff = rtmn_diff;
860 1105
861 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1106 for (i = 4; --i; ) /* loop a few times, before making important decisions */
862 { 1107 {
863 rtmn_diff = rt_now - mn_now; 1108 rtmn_diff = ev_rt_now - mn_now;
864 1109
865 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1110 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
866 return; /* all is well */ 1111 return; /* all is well */
867 1112
868 rt_now = ev_time (); 1113 ev_rt_now = ev_time ();
869 mn_now = get_clock (); 1114 mn_now = get_clock ();
870 now_floor = mn_now; 1115 now_floor = mn_now;
871 } 1116 }
872 1117
1118# if EV_PERIODICS
873 periodics_reschedule (EV_A); 1119 periodics_reschedule (EV_A);
1120# endif
874 /* no timer adjustment, as the monotonic clock doesn't jump */ 1121 /* no timer adjustment, as the monotonic clock doesn't jump */
875 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1122 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
876 } 1123 }
877 } 1124 }
878 else 1125 else
879#endif 1126#endif
880 { 1127 {
881 rt_now = ev_time (); 1128 ev_rt_now = ev_time ();
882 1129
883 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1130 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
884 { 1131 {
1132#if EV_PERIODICS
885 periodics_reschedule (EV_A); 1133 periodics_reschedule (EV_A);
1134#endif
886 1135
887 /* adjust timers. this is easy, as the offset is the same for all */ 1136 /* adjust timers. this is easy, as the offset is the same for all */
888 for (i = 0; i < timercnt; ++i) 1137 for (i = 0; i < timercnt; ++i)
889 timers [i]->at += rt_now - mn_now; 1138 ((WT)timers [i])->at += ev_rt_now - mn_now;
890 } 1139 }
891 1140
892 mn_now = rt_now; 1141 mn_now = ev_rt_now;
893 } 1142 }
894} 1143}
895 1144
896void 1145void
897ev_ref (EV_P) 1146ev_ref (EV_P)
… …
920 { 1169 {
921 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1170 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
922 call_pending (EV_A); 1171 call_pending (EV_A);
923 } 1172 }
924 1173
1174 /* we might have forked, so reify kernel state if necessary */
1175 if (expect_false (postfork))
1176 loop_fork (EV_A);
1177
925 /* update fd-related kernel structures */ 1178 /* update fd-related kernel structures */
926 fd_reify (EV_A); 1179 fd_reify (EV_A);
927 1180
928 /* calculate blocking time */ 1181 /* calculate blocking time */
929 1182
930 /* we only need this for !monotonic clockor timers, but as we basically 1183 /* we only need this for !monotonic clock or timers, but as we basically
931 always have timers, we just calculate it always */ 1184 always have timers, we just calculate it always */
932#if EV_USE_MONOTONIC 1185#if EV_USE_MONOTONIC
933 if (expect_true (have_monotonic)) 1186 if (expect_true (have_monotonic))
934 time_update_monotonic (EV_A); 1187 time_update_monotonic (EV_A);
935 else 1188 else
936#endif 1189#endif
937 { 1190 {
938 rt_now = ev_time (); 1191 ev_rt_now = ev_time ();
939 mn_now = rt_now; 1192 mn_now = ev_rt_now;
940 } 1193 }
941 1194
942 if (flags & EVLOOP_NONBLOCK || idlecnt) 1195 if (flags & EVLOOP_NONBLOCK || idlecnt)
943 block = 0.; 1196 block = 0.;
944 else 1197 else
945 { 1198 {
946 block = MAX_BLOCKTIME; 1199 block = MAX_BLOCKTIME;
947 1200
948 if (timercnt) 1201 if (timercnt)
949 { 1202 {
950 ev_tstamp to = timers [0]->at - mn_now + method_fudge; 1203 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
951 if (block > to) block = to; 1204 if (block > to) block = to;
952 } 1205 }
953 1206
1207#if EV_PERIODICS
954 if (periodiccnt) 1208 if (periodiccnt)
955 { 1209 {
956 ev_tstamp to = periodics [0]->at - rt_now + method_fudge; 1210 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
957 if (block > to) block = to; 1211 if (block > to) block = to;
958 } 1212 }
1213#endif
959 1214
960 if (block < 0.) block = 0.; 1215 if (block < 0.) block = 0.;
961 } 1216 }
962 1217
963 method_poll (EV_A_ block); 1218 method_poll (EV_A_ block);
964 1219
965 /* update rt_now, do magic */ 1220 /* update ev_rt_now, do magic */
966 time_update (EV_A); 1221 time_update (EV_A);
967 1222
968 /* queue pending timers and reschedule them */ 1223 /* queue pending timers and reschedule them */
969 timers_reify (EV_A); /* relative timers called last */ 1224 timers_reify (EV_A); /* relative timers called last */
1225#if EV_PERIODICS
970 periodics_reify (EV_A); /* absolute timers called first */ 1226 periodics_reify (EV_A); /* absolute timers called first */
1227#endif
971 1228
972 /* queue idle watchers unless io or timers are pending */ 1229 /* queue idle watchers unless io or timers are pending */
973 if (!pendingcnt) 1230 if (idlecnt && !any_pending (EV_A))
974 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1231 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
975 1232
976 /* queue check watchers, to be executed first */ 1233 /* queue check watchers, to be executed first */
977 if (checkcnt) 1234 if (checkcnt)
978 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1235 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
… …
1053 return; 1310 return;
1054 1311
1055 assert (("ev_io_start called with negative fd", fd >= 0)); 1312 assert (("ev_io_start called with negative fd", fd >= 0));
1056 1313
1057 ev_start (EV_A_ (W)w, 1); 1314 ev_start (EV_A_ (W)w, 1);
1058 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 1315 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1059 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1316 wlist_add ((WL *)&anfds[fd].head, (WL)w);
1060 1317
1061 fd_change (EV_A_ fd); 1318 fd_change (EV_A_ fd);
1062} 1319}
1063 1320
… …
1066{ 1323{
1067 ev_clear_pending (EV_A_ (W)w); 1324 ev_clear_pending (EV_A_ (W)w);
1068 if (!ev_is_active (w)) 1325 if (!ev_is_active (w))
1069 return; 1326 return;
1070 1327
1328 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1329
1071 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1330 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1072 ev_stop (EV_A_ (W)w); 1331 ev_stop (EV_A_ (W)w);
1073 1332
1074 fd_change (EV_A_ w->fd); 1333 fd_change (EV_A_ w->fd);
1075} 1334}
… …
1078ev_timer_start (EV_P_ struct ev_timer *w) 1337ev_timer_start (EV_P_ struct ev_timer *w)
1079{ 1338{
1080 if (ev_is_active (w)) 1339 if (ev_is_active (w))
1081 return; 1340 return;
1082 1341
1083 w->at += mn_now; 1342 ((WT)w)->at += mn_now;
1084 1343
1085 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1344 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1086 1345
1087 ev_start (EV_A_ (W)w, ++timercnt); 1346 ev_start (EV_A_ (W)w, ++timercnt);
1088 array_needsize (timers, timermax, timercnt, ); 1347 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1089 timers [timercnt - 1] = w; 1348 timers [timercnt - 1] = w;
1090 upheap ((WT *)timers, timercnt - 1); 1349 upheap ((WT *)timers, timercnt - 1);
1350
1351 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1091} 1352}
1092 1353
1093void 1354void
1094ev_timer_stop (EV_P_ struct ev_timer *w) 1355ev_timer_stop (EV_P_ struct ev_timer *w)
1095{ 1356{
1096 ev_clear_pending (EV_A_ (W)w); 1357 ev_clear_pending (EV_A_ (W)w);
1097 if (!ev_is_active (w)) 1358 if (!ev_is_active (w))
1098 return; 1359 return;
1099 1360
1361 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1362
1100 if (w->active < timercnt--) 1363 if (((W)w)->active < timercnt--)
1101 { 1364 {
1102 timers [w->active - 1] = timers [timercnt]; 1365 timers [((W)w)->active - 1] = timers [timercnt];
1103 downheap ((WT *)timers, timercnt, w->active - 1); 1366 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1104 } 1367 }
1105 1368
1106 w->at = w->repeat; 1369 ((WT)w)->at -= mn_now;
1107 1370
1108 ev_stop (EV_A_ (W)w); 1371 ev_stop (EV_A_ (W)w);
1109} 1372}
1110 1373
1111void 1374void
… …
1113{ 1376{
1114 if (ev_is_active (w)) 1377 if (ev_is_active (w))
1115 { 1378 {
1116 if (w->repeat) 1379 if (w->repeat)
1117 { 1380 {
1118 w->at = mn_now + w->repeat; 1381 ((WT)w)->at = mn_now + w->repeat;
1119 downheap ((WT *)timers, timercnt, w->active - 1); 1382 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1120 } 1383 }
1121 else 1384 else
1122 ev_timer_stop (EV_A_ w); 1385 ev_timer_stop (EV_A_ w);
1123 } 1386 }
1124 else if (w->repeat) 1387 else if (w->repeat)
1125 ev_timer_start (EV_A_ w); 1388 ev_timer_start (EV_A_ w);
1126} 1389}
1127 1390
1391#if EV_PERIODICS
1128void 1392void
1129ev_periodic_start (EV_P_ struct ev_periodic *w) 1393ev_periodic_start (EV_P_ struct ev_periodic *w)
1130{ 1394{
1131 if (ev_is_active (w)) 1395 if (ev_is_active (w))
1132 return; 1396 return;
1133 1397
1398 if (w->reschedule_cb)
1399 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1400 else if (w->interval)
1401 {
1134 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1402 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1135
1136 /* this formula differs from the one in periodic_reify because we do not always round up */ 1403 /* this formula differs from the one in periodic_reify because we do not always round up */
1137 if (w->interval)
1138 w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; 1404 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1405 }
1139 1406
1140 ev_start (EV_A_ (W)w, ++periodiccnt); 1407 ev_start (EV_A_ (W)w, ++periodiccnt);
1141 array_needsize (periodics, periodicmax, periodiccnt, ); 1408 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1142 periodics [periodiccnt - 1] = w; 1409 periodics [periodiccnt - 1] = w;
1143 upheap ((WT *)periodics, periodiccnt - 1); 1410 upheap ((WT *)periodics, periodiccnt - 1);
1411
1412 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1144} 1413}
1145 1414
1146void 1415void
1147ev_periodic_stop (EV_P_ struct ev_periodic *w) 1416ev_periodic_stop (EV_P_ struct ev_periodic *w)
1148{ 1417{
1149 ev_clear_pending (EV_A_ (W)w); 1418 ev_clear_pending (EV_A_ (W)w);
1150 if (!ev_is_active (w)) 1419 if (!ev_is_active (w))
1151 return; 1420 return;
1152 1421
1422 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1423
1153 if (w->active < periodiccnt--) 1424 if (((W)w)->active < periodiccnt--)
1154 { 1425 {
1155 periodics [w->active - 1] = periodics [periodiccnt]; 1426 periodics [((W)w)->active - 1] = periodics [periodiccnt];
1156 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1427 adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1157 } 1428 }
1158 1429
1159 ev_stop (EV_A_ (W)w); 1430 ev_stop (EV_A_ (W)w);
1160} 1431}
1161 1432
1162void 1433void
1434ev_periodic_again (EV_P_ struct ev_periodic *w)
1435{
1436 /* TODO: use adjustheap and recalculation */
1437 ev_periodic_stop (EV_A_ w);
1438 ev_periodic_start (EV_A_ w);
1439}
1440#endif
1441
1442void
1163ev_idle_start (EV_P_ struct ev_idle *w) 1443ev_idle_start (EV_P_ struct ev_idle *w)
1164{ 1444{
1165 if (ev_is_active (w)) 1445 if (ev_is_active (w))
1166 return; 1446 return;
1167 1447
1168 ev_start (EV_A_ (W)w, ++idlecnt); 1448 ev_start (EV_A_ (W)w, ++idlecnt);
1169 array_needsize (idles, idlemax, idlecnt, ); 1449 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1170 idles [idlecnt - 1] = w; 1450 idles [idlecnt - 1] = w;
1171} 1451}
1172 1452
1173void 1453void
1174ev_idle_stop (EV_P_ struct ev_idle *w) 1454ev_idle_stop (EV_P_ struct ev_idle *w)
1175{ 1455{
1176 ev_clear_pending (EV_A_ (W)w); 1456 ev_clear_pending (EV_A_ (W)w);
1457 if (!ev_is_active (w))
1458 return;
1459
1460 idles [((W)w)->active - 1] = idles [--idlecnt];
1461 ev_stop (EV_A_ (W)w);
1462}
1463
1464void
1465ev_prepare_start (EV_P_ struct ev_prepare *w)
1466{
1177 if (ev_is_active (w)) 1467 if (ev_is_active (w))
1178 return; 1468 return;
1179 1469
1180 idles [w->active - 1] = idles [--idlecnt]; 1470 ev_start (EV_A_ (W)w, ++preparecnt);
1471 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1472 prepares [preparecnt - 1] = w;
1473}
1474
1475void
1476ev_prepare_stop (EV_P_ struct ev_prepare *w)
1477{
1478 ev_clear_pending (EV_A_ (W)w);
1479 if (!ev_is_active (w))
1480 return;
1481
1482 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1181 ev_stop (EV_A_ (W)w); 1483 ev_stop (EV_A_ (W)w);
1182} 1484}
1183 1485
1184void 1486void
1185ev_prepare_start (EV_P_ struct ev_prepare *w) 1487ev_check_start (EV_P_ struct ev_check *w)
1186{ 1488{
1187 if (ev_is_active (w)) 1489 if (ev_is_active (w))
1188 return; 1490 return;
1189 1491
1190 ev_start (EV_A_ (W)w, ++preparecnt); 1492 ev_start (EV_A_ (W)w, ++checkcnt);
1191 array_needsize (prepares, preparemax, preparecnt, ); 1493 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1192 prepares [preparecnt - 1] = w; 1494 checks [checkcnt - 1] = w;
1193} 1495}
1194 1496
1195void 1497void
1196ev_prepare_stop (EV_P_ struct ev_prepare *w) 1498ev_check_stop (EV_P_ struct ev_check *w)
1197{ 1499{
1198 ev_clear_pending (EV_A_ (W)w); 1500 ev_clear_pending (EV_A_ (W)w);
1199 if (ev_is_active (w)) 1501 if (!ev_is_active (w))
1200 return; 1502 return;
1201 1503
1202 prepares [w->active - 1] = prepares [--preparecnt];
1203 ev_stop (EV_A_ (W)w);
1204}
1205
1206void
1207ev_check_start (EV_P_ struct ev_check *w)
1208{
1209 if (ev_is_active (w))
1210 return;
1211
1212 ev_start (EV_A_ (W)w, ++checkcnt);
1213 array_needsize (checks, checkmax, checkcnt, );
1214 checks [checkcnt - 1] = w;
1215}
1216
1217void
1218ev_check_stop (EV_P_ struct ev_check *w)
1219{
1220 ev_clear_pending (EV_A_ (W)w);
1221 if (ev_is_active (w))
1222 return;
1223
1224 checks [w->active - 1] = checks [--checkcnt]; 1504 checks [((W)w)->active - 1] = checks [--checkcnt];
1225 ev_stop (EV_A_ (W)w); 1505 ev_stop (EV_A_ (W)w);
1226} 1506}
1227 1507
1228#ifndef SA_RESTART 1508#ifndef SA_RESTART
1229# define SA_RESTART 0 1509# define SA_RESTART 0
… …
1239 return; 1519 return;
1240 1520
1241 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1521 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1242 1522
1243 ev_start (EV_A_ (W)w, 1); 1523 ev_start (EV_A_ (W)w, 1);
1244 array_needsize (signals, signalmax, w->signum, signals_init); 1524 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1245 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1525 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1246 1526
1247 if (!w->next) 1527 if (!((WL)w)->next)
1248 { 1528 {
1529#if _WIN32
1530 signal (w->signum, sighandler);
1531#else
1249 struct sigaction sa; 1532 struct sigaction sa;
1250 sa.sa_handler = sighandler; 1533 sa.sa_handler = sighandler;
1251 sigfillset (&sa.sa_mask); 1534 sigfillset (&sa.sa_mask);
1252 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 1535 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1253 sigaction (w->signum, &sa, 0); 1536 sigaction (w->signum, &sa, 0);
1537#endif
1254 } 1538 }
1255} 1539}
1256 1540
1257void 1541void
1258ev_signal_stop (EV_P_ struct ev_signal *w) 1542ev_signal_stop (EV_P_ struct ev_signal *w)
… …
1283 1567
1284void 1568void
1285ev_child_stop (EV_P_ struct ev_child *w) 1569ev_child_stop (EV_P_ struct ev_child *w)
1286{ 1570{
1287 ev_clear_pending (EV_A_ (W)w); 1571 ev_clear_pending (EV_A_ (W)w);
1288 if (ev_is_active (w)) 1572 if (!ev_is_active (w))
1289 return; 1573 return;
1290 1574
1291 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1575 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1292 ev_stop (EV_A_ (W)w); 1576 ev_stop (EV_A_ (W)w);
1293} 1577}
… …
1308 void (*cb)(int revents, void *arg) = once->cb; 1592 void (*cb)(int revents, void *arg) = once->cb;
1309 void *arg = once->arg; 1593 void *arg = once->arg;
1310 1594
1311 ev_io_stop (EV_A_ &once->io); 1595 ev_io_stop (EV_A_ &once->io);
1312 ev_timer_stop (EV_A_ &once->to); 1596 ev_timer_stop (EV_A_ &once->to);
1313 free (once); 1597 ev_free (once);
1314 1598
1315 cb (revents, arg); 1599 cb (revents, arg);
1316} 1600}
1317 1601
1318static void 1602static void
… …
1328} 1612}
1329 1613
1330void 1614void
1331ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 1615ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1332{ 1616{
1333 struct ev_once *once = malloc (sizeof (struct ev_once)); 1617 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1334 1618
1335 if (!once) 1619 if (!once)
1336 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 1620 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1337 else 1621 else
1338 { 1622 {
1339 once->cb = cb; 1623 once->cb = cb;
1340 once->arg = arg; 1624 once->arg = arg;
1341 1625
1342 ev_watcher_init (&once->io, once_cb_io); 1626 ev_init (&once->io, once_cb_io);
1343 if (fd >= 0) 1627 if (fd >= 0)
1344 { 1628 {
1345 ev_io_set (&once->io, fd, events); 1629 ev_io_set (&once->io, fd, events);
1346 ev_io_start (EV_A_ &once->io); 1630 ev_io_start (EV_A_ &once->io);
1347 } 1631 }
1348 1632
1349 ev_watcher_init (&once->to, once_cb_to); 1633 ev_init (&once->to, once_cb_to);
1350 if (timeout >= 0.) 1634 if (timeout >= 0.)
1351 { 1635 {
1352 ev_timer_set (&once->to, timeout, 0.); 1636 ev_timer_set (&once->to, timeout, 0.);
1353 ev_timer_start (EV_A_ &once->to); 1637 ev_timer_start (EV_A_ &once->to);
1354 } 1638 }
1355 } 1639 }
1356} 1640}
1357 1641
1642#ifdef __cplusplus
1643}
1644#endif
1645

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