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Comparing libev/ev.c (file contents):
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC vs.
Revision 1.185 by root, Fri Dec 14 18:22:30 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
37# ifdef EV_CONFIG_H
38# include EV_CONFIG_H
39# else
32# include "config.h" 40# include "config.h"
41# endif
42
43# if HAVE_CLOCK_GETTIME
44# ifndef EV_USE_MONOTONIC
45# define EV_USE_MONOTONIC 1
46# endif
47# ifndef EV_USE_REALTIME
48# define EV_USE_REALTIME 1
49# endif
50# else
51# ifndef EV_USE_MONOTONIC
52# define EV_USE_MONOTONIC 0
53# endif
54# ifndef EV_USE_REALTIME
55# define EV_USE_REALTIME 0
56# endif
57# endif
58
59# ifndef EV_USE_SELECT
60# if HAVE_SELECT && HAVE_SYS_SELECT_H
61# define EV_USE_SELECT 1
62# else
63# define EV_USE_SELECT 0
64# endif
65# endif
66
67# ifndef EV_USE_POLL
68# if HAVE_POLL && HAVE_POLL_H
69# define EV_USE_POLL 1
70# else
71# define EV_USE_POLL 0
72# endif
73# endif
74
75# ifndef EV_USE_EPOLL
76# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
77# define EV_USE_EPOLL 1
78# else
79# define EV_USE_EPOLL 0
80# endif
81# endif
82
83# ifndef EV_USE_KQUEUE
84# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
85# define EV_USE_KQUEUE 1
86# else
87# define EV_USE_KQUEUE 0
88# endif
89# endif
90
91# ifndef EV_USE_PORT
92# if HAVE_PORT_H && HAVE_PORT_CREATE
93# define EV_USE_PORT 1
94# else
95# define EV_USE_PORT 0
96# endif
97# endif
98
99# ifndef EV_USE_INOTIFY
100# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
101# define EV_USE_INOTIFY 1
102# else
103# define EV_USE_INOTIFY 0
104# endif
105# endif
106
33#endif 107#endif
34 108
35#include <math.h> 109#include <math.h>
36#include <stdlib.h> 110#include <stdlib.h>
37#include <unistd.h>
38#include <fcntl.h> 111#include <fcntl.h>
39#include <signal.h>
40#include <stddef.h> 112#include <stddef.h>
41 113
42#include <stdio.h> 114#include <stdio.h>
43 115
44#include <assert.h> 116#include <assert.h>
45#include <errno.h> 117#include <errno.h>
46#include <sys/types.h> 118#include <sys/types.h>
119#include <time.h>
120
121#include <signal.h>
122
123#ifdef EV_H
124# include EV_H
125#else
126# include "ev.h"
127#endif
128
47#ifndef WIN32 129#ifndef _WIN32
130# include <sys/time.h>
48# include <sys/wait.h> 131# include <sys/wait.h>
132# include <unistd.h>
133#else
134# define WIN32_LEAN_AND_MEAN
135# include <windows.h>
136# ifndef EV_SELECT_IS_WINSOCKET
137# define EV_SELECT_IS_WINSOCKET 1
49#endif 138# endif
50#include <sys/time.h> 139#endif
51#include <time.h>
52 140
53/**/ 141/**/
54 142
55#ifndef EV_USE_MONOTONIC 143#ifndef EV_USE_MONOTONIC
56# define EV_USE_MONOTONIC 1 144# define EV_USE_MONOTONIC 0
145#endif
146
147#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0
57#endif 149#endif
58 150
59#ifndef EV_USE_SELECT 151#ifndef EV_USE_SELECT
60# define EV_USE_SELECT 1 152# define EV_USE_SELECT 1
61#endif 153#endif
62 154
63#ifndef EV_USEV_POLL 155#ifndef EV_USE_POLL
64# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ 156# ifdef _WIN32
157# define EV_USE_POLL 0
158# else
159# define EV_USE_POLL 1
160# endif
65#endif 161#endif
66 162
67#ifndef EV_USE_EPOLL 163#ifndef EV_USE_EPOLL
68# define EV_USE_EPOLL 0 164# define EV_USE_EPOLL 0
69#endif 165#endif
70 166
71#ifndef EV_USE_KQUEUE 167#ifndef EV_USE_KQUEUE
72# define EV_USE_KQUEUE 0 168# define EV_USE_KQUEUE 0
73#endif 169#endif
74 170
75#ifndef EV_USE_REALTIME 171#ifndef EV_USE_PORT
76# define EV_USE_REALTIME 1 172# define EV_USE_PORT 0
173#endif
174
175#ifndef EV_USE_INOTIFY
176# define EV_USE_INOTIFY 0
177#endif
178
179#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1
182# else
183# define EV_PID_HASHSIZE 16
184# endif
185#endif
186
187#ifndef EV_INOTIFY_HASHSIZE
188# if EV_MINIMAL
189# define EV_INOTIFY_HASHSIZE 1
190# else
191# define EV_INOTIFY_HASHSIZE 16
192# endif
77#endif 193#endif
78 194
79/**/ 195/**/
80 196
81#ifndef CLOCK_MONOTONIC 197#ifndef CLOCK_MONOTONIC
… …
86#ifndef CLOCK_REALTIME 202#ifndef CLOCK_REALTIME
87# undef EV_USE_REALTIME 203# undef EV_USE_REALTIME
88# define EV_USE_REALTIME 0 204# define EV_USE_REALTIME 0
89#endif 205#endif
90 206
207#if !EV_STAT_ENABLE
208# undef EV_USE_INOTIFY
209# define EV_USE_INOTIFY 0
210#endif
211
212#if EV_USE_INOTIFY
213# include <sys/inotify.h>
214#endif
215
216#if EV_SELECT_IS_WINSOCKET
217# include <winsock.h>
218#endif
219
91/**/ 220/**/
92 221
222/*
223 * This is used to avoid floating point rounding problems.
224 * It is added to ev_rt_now when scheduling periodics
225 * to ensure progress, time-wise, even when rounding
226 * errors are against us.
227 * This value is good at least till the year 4000.
228 * Better solutions welcome.
229 */
230#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
231
93#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 232#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ 233#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
95#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 */ 234/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
97 235
98#include "ev.h"
99
100#if __GNUC__ >= 3 236#if __GNUC__ >= 4
101# define expect(expr,value) __builtin_expect ((expr),(value)) 237# define expect(expr,value) __builtin_expect ((expr),(value))
102# define inline inline 238# define noinline __attribute__ ((noinline))
103#else 239#else
104# define expect(expr,value) (expr) 240# define expect(expr,value) (expr)
105# define inline static 241# define noinline
242# if __STDC_VERSION__ < 199901L
243# define inline
244# endif
106#endif 245#endif
107 246
108#define expect_false(expr) expect ((expr) != 0, 0) 247#define expect_false(expr) expect ((expr) != 0, 0)
109#define expect_true(expr) expect ((expr) != 0, 1) 248#define expect_true(expr) expect ((expr) != 0, 1)
249#define inline_size static inline
250
251#if EV_MINIMAL
252# define inline_speed static noinline
253#else
254# define inline_speed static inline
255#endif
110 256
111#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 257#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112#define ABSPRI(w) ((w)->priority - EV_MINPRI) 258#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
113 259
260#define EMPTY /* required for microsofts broken pseudo-c compiler */
261#define EMPTY2(a,b) /* used to suppress some warnings */
262
114typedef struct ev_watcher *W; 263typedef ev_watcher *W;
115typedef struct ev_watcher_list *WL; 264typedef ev_watcher_list *WL;
116typedef struct ev_watcher_time *WT; 265typedef ev_watcher_time *WT;
117 266
118static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */ 267static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119static ev_tstamp rt_now;
120static int method;
121 268
122static int have_monotonic; /* runtime */ 269#ifdef _WIN32
123 270# include "ev_win32.c"
124static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
125static void (*method_modify)(EV_P_ int fd, int oev, int nev);
126static void (*method_poll)(EV_P_ ev_tstamp timeout);
127
128static int activecnt; /* number of active events */
129
130#if EV_USE_SELECT
131static unsigned char *vec_ri, *vec_ro, *vec_wi, *vec_wo;
132static int vec_max;
133#endif
134
135#if EV_USEV_POLL
136static struct pollfd *polls;
137static int pollmax, pollcnt;
138static int *pollidxs; /* maps fds into structure indices */
139static int pollidxmax;
140#endif
141
142#if EV_USE_EPOLL
143static int epoll_fd = -1;
144
145static struct epoll_event *events;
146static int eventmax;
147#endif
148
149#if EV_USE_KQUEUE
150static int kqueue_fd;
151static struct kevent *kqueue_changes;
152static int kqueue_changemax, kqueue_changecnt;
153static struct kevent *kqueue_events;
154static int kqueue_eventmax;
155#endif 271#endif
156 272
157/*****************************************************************************/ 273/*****************************************************************************/
158 274
159inline ev_tstamp 275static void (*syserr_cb)(const char *msg);
276
277void
278ev_set_syserr_cb (void (*cb)(const char *msg))
279{
280 syserr_cb = cb;
281}
282
283static void noinline
284syserr (const char *msg)
285{
286 if (!msg)
287 msg = "(libev) system error";
288
289 if (syserr_cb)
290 syserr_cb (msg);
291 else
292 {
293 perror (msg);
294 abort ();
295 }
296}
297
298static void *(*alloc)(void *ptr, long size);
299
300void
301ev_set_allocator (void *(*cb)(void *ptr, long size))
302{
303 alloc = cb;
304}
305
306inline_speed void *
307ev_realloc (void *ptr, long size)
308{
309 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
310
311 if (!ptr && size)
312 {
313 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
314 abort ();
315 }
316
317 return ptr;
318}
319
320#define ev_malloc(size) ev_realloc (0, (size))
321#define ev_free(ptr) ev_realloc ((ptr), 0)
322
323/*****************************************************************************/
324
325typedef struct
326{
327 WL head;
328 unsigned char events;
329 unsigned char reify;
330#if EV_SELECT_IS_WINSOCKET
331 SOCKET handle;
332#endif
333} ANFD;
334
335typedef struct
336{
337 W w;
338 int events;
339} ANPENDING;
340
341#if EV_USE_INOTIFY
342typedef struct
343{
344 WL head;
345} ANFS;
346#endif
347
348#if EV_MULTIPLICITY
349
350 struct ev_loop
351 {
352 ev_tstamp ev_rt_now;
353 #define ev_rt_now ((loop)->ev_rt_now)
354 #define VAR(name,decl) decl;
355 #include "ev_vars.h"
356 #undef VAR
357 };
358 #include "ev_wrap.h"
359
360 static struct ev_loop default_loop_struct;
361 struct ev_loop *ev_default_loop_ptr;
362
363#else
364
365 ev_tstamp ev_rt_now;
366 #define VAR(name,decl) static decl;
367 #include "ev_vars.h"
368 #undef VAR
369
370 static int ev_default_loop_ptr;
371
372#endif
373
374/*****************************************************************************/
375
376ev_tstamp
160ev_time (void) 377ev_time (void)
161{ 378{
162#if EV_USE_REALTIME 379#if EV_USE_REALTIME
163 struct timespec ts; 380 struct timespec ts;
164 clock_gettime (CLOCK_REALTIME, &ts); 381 clock_gettime (CLOCK_REALTIME, &ts);
… …
168 gettimeofday (&tv, 0); 385 gettimeofday (&tv, 0);
169 return tv.tv_sec + tv.tv_usec * 1e-6; 386 return tv.tv_sec + tv.tv_usec * 1e-6;
170#endif 387#endif
171} 388}
172 389
173inline ev_tstamp 390ev_tstamp inline_size
174get_clock (void) 391get_clock (void)
175{ 392{
176#if EV_USE_MONOTONIC 393#if EV_USE_MONOTONIC
177 if (expect_true (have_monotonic)) 394 if (expect_true (have_monotonic))
178 { 395 {
… …
183#endif 400#endif
184 401
185 return ev_time (); 402 return ev_time ();
186} 403}
187 404
405#if EV_MULTIPLICITY
188ev_tstamp 406ev_tstamp
189ev_now (EV_P) 407ev_now (EV_P)
190{ 408{
191 return rt_now; 409 return ev_rt_now;
192} 410}
411#endif
193 412
194#define array_roundsize(base,n) ((n) | 4 & ~3) 413int inline_size
414array_nextsize (int elem, int cur, int cnt)
415{
416 int ncur = cur + 1;
195 417
418 do
419 ncur <<= 1;
420 while (cnt > ncur);
421
422 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
423 if (elem * ncur > 4096)
424 {
425 ncur *= elem;
426 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
427 ncur = ncur - sizeof (void *) * 4;
428 ncur /= elem;
429 }
430
431 return ncur;
432}
433
434static noinline void *
435array_realloc (int elem, void *base, int *cur, int cnt)
436{
437 *cur = array_nextsize (elem, *cur, cnt);
438 return ev_realloc (base, elem * *cur);
439}
440
196#define array_needsize(base,cur,cnt,init) \ 441#define array_needsize(type,base,cur,cnt,init) \
197 if (expect_false ((cnt) > cur)) \ 442 if (expect_false ((cnt) > (cur))) \
198 { \ 443 { \
199 int newcnt = cur; \ 444 int ocur_ = (cur); \
200 do \ 445 (base) = (type *)array_realloc \
201 { \ 446 (sizeof (type), (base), &(cur), (cnt)); \
202 newcnt = array_roundsize (base, newcnt << 1); \ 447 init ((base) + (ocur_), (cur) - ocur_); \
203 } \ 448 }
204 while ((cnt) > newcnt); \ 449
450#if 0
451#define array_slim(type,stem) \
452 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
205 \ 453 { \
206 base = realloc (base, sizeof (*base) * (newcnt)); \ 454 stem ## max = array_roundsize (stem ## cnt >> 1); \
207 init (base + cur, newcnt - cur); \ 455 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
208 cur = newcnt; \ 456 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
209 } 457 }
458#endif
459
460#define array_free(stem, idx) \
461 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
210 462
211/*****************************************************************************/ 463/*****************************************************************************/
212 464
213typedef struct 465void noinline
466ev_feed_event (EV_P_ void *w, int revents)
214{ 467{
215 struct ev_watcher_list *head; 468 W w_ = (W)w;
216 unsigned char events; 469 int pri = ABSPRI (w_);
217 unsigned char reify;
218} ANFD;
219 470
220static ANFD *anfds; 471 if (expect_false (w_->pending))
221static int anfdmax; 472 pendings [pri][w_->pending - 1].events |= revents;
473 else
474 {
475 w_->pending = ++pendingcnt [pri];
476 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
477 pendings [pri][w_->pending - 1].w = w_;
478 pendings [pri][w_->pending - 1].events = revents;
479 }
480}
222 481
223static void 482void inline_speed
483queue_events (EV_P_ W *events, int eventcnt, int type)
484{
485 int i;
486
487 for (i = 0; i < eventcnt; ++i)
488 ev_feed_event (EV_A_ events [i], type);
489}
490
491/*****************************************************************************/
492
493void inline_size
224anfds_init (ANFD *base, int count) 494anfds_init (ANFD *base, int count)
225{ 495{
226 while (count--) 496 while (count--)
227 { 497 {
228 base->head = 0; 498 base->head = 0;
… …
231 501
232 ++base; 502 ++base;
233 } 503 }
234} 504}
235 505
236typedef struct 506void inline_speed
237{
238 W w;
239 int events;
240} ANPENDING;
241
242static ANPENDING *pendings [NUMPRI];
243static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
244
245static void
246event (EV_P_ W w, int events)
247{
248 if (w->pending)
249 {
250 pendings [ABSPRI (w)][w->pending - 1].events |= events;
251 return;
252 }
253
254 w->pending = ++pendingcnt [ABSPRI (w)];
255 array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
256 pendings [ABSPRI (w)][w->pending - 1].w = w;
257 pendings [ABSPRI (w)][w->pending - 1].events = events;
258}
259
260static void
261queue_events (EV_P_ W *events, int eventcnt, int type)
262{
263 int i;
264
265 for (i = 0; i < eventcnt; ++i)
266 event (EV_A_ events [i], type);
267}
268
269static void
270fd_event (EV_P_ int fd, int events) 507fd_event (EV_P_ int fd, int revents)
271{ 508{
272 ANFD *anfd = anfds + fd; 509 ANFD *anfd = anfds + fd;
273 struct ev_io *w; 510 ev_io *w;
274 511
275 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 512 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
276 { 513 {
277 int ev = w->events & events; 514 int ev = w->events & revents;
278 515
279 if (ev) 516 if (ev)
280 event (EV_A_ (W)w, ev); 517 ev_feed_event (EV_A_ (W)w, ev);
281 } 518 }
282} 519}
283 520
284/*****************************************************************************/ 521void
522ev_feed_fd_event (EV_P_ int fd, int revents)
523{
524 if (fd >= 0 && fd < anfdmax)
525 fd_event (EV_A_ fd, revents);
526}
285 527
286static int *fdchanges; 528void inline_size
287static int fdchangemax, fdchangecnt;
288
289static void
290fd_reify (EV_P) 529fd_reify (EV_P)
291{ 530{
292 int i; 531 int i;
293 532
294 for (i = 0; i < fdchangecnt; ++i) 533 for (i = 0; i < fdchangecnt; ++i)
295 { 534 {
296 int fd = fdchanges [i]; 535 int fd = fdchanges [i];
297 ANFD *anfd = anfds + fd; 536 ANFD *anfd = anfds + fd;
298 struct ev_io *w; 537 ev_io *w;
299 538
300 int events = 0; 539 unsigned char events = 0;
301 540
302 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 541 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
303 events |= w->events; 542 events |= (unsigned char)w->events;
304 543
305 anfd->reify = 0; 544#if EV_SELECT_IS_WINSOCKET
306 545 if (events)
307 if (anfd->events != events)
308 { 546 {
309 method_modify (EV_A_ fd, anfd->events, events); 547 unsigned long argp;
310 anfd->events = events; 548 anfd->handle = _get_osfhandle (fd);
549 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
311 } 550 }
551#endif
552
553 {
554 unsigned char o_events = anfd->events;
555 unsigned char o_reify = anfd->reify;
556
557 anfd->reify = 0;
558 anfd->events = events;
559
560 if (o_events != events || o_reify & EV_IOFDSET)
561 backend_modify (EV_A_ fd, o_events, events);
562 }
312 } 563 }
313 564
314 fdchangecnt = 0; 565 fdchangecnt = 0;
315} 566}
316 567
317static void 568void inline_size
318fd_change (EV_P_ int fd) 569fd_change (EV_P_ int fd, int flags)
319{ 570{
320 if (anfds [fd].reify || fdchangecnt < 0) 571 unsigned char reify = anfds [fd].reify;
321 return;
322
323 anfds [fd].reify = 1; 572 anfds [fd].reify |= flags;
324 573
574 if (expect_true (!reify))
575 {
325 ++fdchangecnt; 576 ++fdchangecnt;
326 array_needsize (fdchanges, fdchangemax, fdchangecnt, ); 577 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
327 fdchanges [fdchangecnt - 1] = fd; 578 fdchanges [fdchangecnt - 1] = fd;
579 }
328} 580}
329 581
330static void 582void inline_speed
331fd_kill (EV_P_ int fd) 583fd_kill (EV_P_ int fd)
332{ 584{
333 struct ev_io *w; 585 ev_io *w;
334 586
335 while ((w = (struct ev_io *)anfds [fd].head)) 587 while ((w = (ev_io *)anfds [fd].head))
336 { 588 {
337 ev_io_stop (EV_A_ w); 589 ev_io_stop (EV_A_ w);
338 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 590 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
339 } 591 }
592}
593
594int inline_size
595fd_valid (int fd)
596{
597#ifdef _WIN32
598 return _get_osfhandle (fd) != -1;
599#else
600 return fcntl (fd, F_GETFD) != -1;
601#endif
340} 602}
341 603
342/* called on EBADF to verify fds */ 604/* called on EBADF to verify fds */
343static void 605static void noinline
344fd_ebadf (EV_P) 606fd_ebadf (EV_P)
345{ 607{
346 int fd; 608 int fd;
347 609
348 for (fd = 0; fd < anfdmax; ++fd) 610 for (fd = 0; fd < anfdmax; ++fd)
349 if (anfds [fd].events) 611 if (anfds [fd].events)
350 if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) 612 if (!fd_valid (fd) == -1 && errno == EBADF)
351 fd_kill (EV_A_ fd); 613 fd_kill (EV_A_ fd);
352} 614}
353 615
354/* called on ENOMEM in select/poll to kill some fds and retry */ 616/* called on ENOMEM in select/poll to kill some fds and retry */
355static void 617static void noinline
356fd_enomem (EV_P) 618fd_enomem (EV_P)
357{ 619{
358 int fd = anfdmax; 620 int fd;
359 621
360 while (fd--) 622 for (fd = anfdmax; fd--; )
361 if (anfds [fd].events) 623 if (anfds [fd].events)
362 { 624 {
363 close (fd);
364 fd_kill (EV_A_ fd); 625 fd_kill (EV_A_ fd);
365 return; 626 return;
366 } 627 }
367} 628}
368 629
630/* usually called after fork if backend needs to re-arm all fds from scratch */
631static void noinline
632fd_rearm_all (EV_P)
633{
634 int fd;
635
636 for (fd = 0; fd < anfdmax; ++fd)
637 if (anfds [fd].events)
638 {
639 anfds [fd].events = 0;
640 fd_change (EV_A_ fd, EV_IOFDSET | 1);
641 }
642}
643
369/*****************************************************************************/ 644/*****************************************************************************/
370 645
371static struct ev_timer **timers; 646void inline_speed
372static int timermax, timercnt;
373
374static struct ev_periodic **periodics;
375static int periodicmax, periodiccnt;
376
377static void
378upheap (WT *timers, int k) 647upheap (WT *heap, int k)
379{ 648{
380 WT w = timers [k]; 649 WT w = heap [k];
381 650
382 while (k && timers [k >> 1]->at > w->at) 651 while (k)
383 {
384 timers [k] = timers [k >> 1];
385 timers [k]->active = k + 1;
386 k >>= 1;
387 } 652 {
388
389 timers [k] = w;
390 timers [k]->active = k + 1;
391
392}
393
394static void
395downheap (WT *timers, int N, int k)
396{
397 WT w = timers [k];
398
399 while (k < (N >> 1))
400 {
401 int j = k << 1; 653 int p = (k - 1) >> 1;
402 654
403 if (j + 1 < N && timers [j]->at > timers [j + 1]->at) 655 if (heap [p]->at <= w->at)
404 ++j;
405
406 if (w->at <= timers [j]->at)
407 break; 656 break;
408 657
409 timers [k] = timers [j]; 658 heap [k] = heap [p];
410 timers [k]->active = k + 1; 659 ((W)heap [k])->active = k + 1;
411 k = j; 660 k = p;
661 }
662
663 heap [k] = w;
664 ((W)heap [k])->active = k + 1;
665}
666
667void inline_speed
668downheap (WT *heap, int N, int k)
669{
670 WT w = heap [k];
671
672 for (;;)
412 } 673 {
674 int c = (k << 1) + 1;
413 675
676 if (c >= N)
677 break;
678
679 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
680 ? 1 : 0;
681
682 if (w->at <= heap [c]->at)
683 break;
684
685 heap [k] = heap [c];
686 ((W)heap [k])->active = k + 1;
687
688 k = c;
689 }
690
414 timers [k] = w; 691 heap [k] = w;
415 timers [k]->active = k + 1; 692 ((W)heap [k])->active = k + 1;
693}
694
695void inline_size
696adjustheap (WT *heap, int N, int k)
697{
698 upheap (heap, k);
699 downheap (heap, N, k);
416} 700}
417 701
418/*****************************************************************************/ 702/*****************************************************************************/
419 703
420typedef struct 704typedef struct
421{ 705{
422 struct ev_watcher_list *head; 706 WL head;
423 sig_atomic_t volatile gotsig; 707 sig_atomic_t volatile gotsig;
424} ANSIG; 708} ANSIG;
425 709
426static ANSIG *signals; 710static ANSIG *signals;
427static int signalmax; 711static int signalmax;
428 712
429static int sigpipe [2]; 713static int sigpipe [2];
430static sig_atomic_t volatile gotsig; 714static sig_atomic_t volatile gotsig;
431static struct ev_io sigev; 715static ev_io sigev;
432 716
433static void 717void inline_size
434signals_init (ANSIG *base, int count) 718signals_init (ANSIG *base, int count)
435{ 719{
436 while (count--) 720 while (count--)
437 { 721 {
438 base->head = 0; 722 base->head = 0;
… …
443} 727}
444 728
445static void 729static void
446sighandler (int signum) 730sighandler (int signum)
447{ 731{
732#if _WIN32
733 signal (signum, sighandler);
734#endif
735
448 signals [signum - 1].gotsig = 1; 736 signals [signum - 1].gotsig = 1;
449 737
450 if (!gotsig) 738 if (!gotsig)
451 { 739 {
452 int old_errno = errno; 740 int old_errno = errno;
… …
454 write (sigpipe [1], &signum, 1); 742 write (sigpipe [1], &signum, 1);
455 errno = old_errno; 743 errno = old_errno;
456 } 744 }
457} 745}
458 746
747void noinline
748ev_feed_signal_event (EV_P_ int signum)
749{
750 WL w;
751
752#if EV_MULTIPLICITY
753 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
754#endif
755
756 --signum;
757
758 if (signum < 0 || signum >= signalmax)
759 return;
760
761 signals [signum].gotsig = 0;
762
763 for (w = signals [signum].head; w; w = w->next)
764 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
765}
766
459static void 767static void
460sigcb (EV_P_ struct ev_io *iow, int revents) 768sigcb (EV_P_ ev_io *iow, int revents)
461{ 769{
462 struct ev_watcher_list *w;
463 int signum; 770 int signum;
464 771
465 read (sigpipe [0], &revents, 1); 772 read (sigpipe [0], &revents, 1);
466 gotsig = 0; 773 gotsig = 0;
467 774
468 for (signum = signalmax; signum--; ) 775 for (signum = signalmax; signum--; )
469 if (signals [signum].gotsig) 776 if (signals [signum].gotsig)
777 ev_feed_signal_event (EV_A_ signum + 1);
778}
779
780void inline_speed
781fd_intern (int fd)
782{
783#ifdef _WIN32
784 int arg = 1;
785 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
786#else
787 fcntl (fd, F_SETFD, FD_CLOEXEC);
788 fcntl (fd, F_SETFL, O_NONBLOCK);
789#endif
790}
791
792static void noinline
793siginit (EV_P)
794{
795 fd_intern (sigpipe [0]);
796 fd_intern (sigpipe [1]);
797
798 ev_io_set (&sigev, sigpipe [0], EV_READ);
799 ev_io_start (EV_A_ &sigev);
800 ev_unref (EV_A); /* child watcher should not keep loop alive */
801}
802
803/*****************************************************************************/
804
805static WL childs [EV_PID_HASHSIZE];
806
807#ifndef _WIN32
808
809static ev_signal childev;
810
811void inline_speed
812child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
813{
814 ev_child *w;
815
816 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
817 if (w->pid == pid || !w->pid)
470 { 818 {
471 signals [signum].gotsig = 0; 819 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
472 820 w->rpid = pid;
473 for (w = signals [signum].head; w; w = w->next) 821 w->rstatus = status;
474 event (EV_A_ (W)w, EV_SIGNAL); 822 ev_feed_event (EV_A_ (W)w, EV_CHILD);
475 } 823 }
476} 824}
477
478static void
479siginit (EV_P)
480{
481#ifndef WIN32
482 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
483 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
484
485 /* rather than sort out wether we really need nb, set it */
486 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
487 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
488#endif
489
490 ev_io_set (&sigev, sigpipe [0], EV_READ);
491 ev_io_start (&sigev);
492 ev_unref (EV_A); /* child watcher should not keep loop alive */
493}
494
495/*****************************************************************************/
496
497static struct ev_idle **idles;
498static int idlemax, idlecnt;
499
500static struct ev_prepare **prepares;
501static int preparemax, preparecnt;
502
503static struct ev_check **checks;
504static int checkmax, checkcnt;
505
506/*****************************************************************************/
507
508static struct ev_child *childs [PID_HASHSIZE];
509static struct ev_signal childev;
510
511#ifndef WIN32
512 825
513#ifndef WCONTINUED 826#ifndef WCONTINUED
514# define WCONTINUED 0 827# define WCONTINUED 0
515#endif 828#endif
516 829
517static void 830static void
518child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
519{
520 struct ev_child *w;
521
522 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
523 if (w->pid == pid || !w->pid)
524 {
525 w->priority = sw->priority; /* need to do it *now* */
526 w->rpid = pid;
527 w->rstatus = status;
528 event (EV_A_ (W)w, EV_CHILD);
529 }
530}
531
532static void
533childcb (EV_P_ struct ev_signal *sw, int revents) 831childcb (EV_P_ ev_signal *sw, int revents)
534{ 832{
535 int pid, status; 833 int pid, status;
536 834
835 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
537 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 836 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
538 { 837 if (!WCONTINUED
838 || errno != EINVAL
839 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
840 return;
841
539 /* make sure we are called again until all childs have been reaped */ 842 /* make sure we are called again until all childs have been reaped */
843 /* we need to do it this way so that the callback gets called before we continue */
540 event (EV_A_ (W)sw, EV_SIGNAL); 844 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
541 845
542 child_reap (EV_A_ sw, pid, pid, status); 846 child_reap (EV_A_ sw, pid, pid, status);
847 if (EV_PID_HASHSIZE > 1)
543 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 848 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
544 }
545} 849}
546 850
547#endif 851#endif
548 852
549/*****************************************************************************/ 853/*****************************************************************************/
550 854
855#if EV_USE_PORT
856# include "ev_port.c"
857#endif
551#if EV_USE_KQUEUE 858#if EV_USE_KQUEUE
552# include "ev_kqueue.c" 859# include "ev_kqueue.c"
553#endif 860#endif
554#if EV_USE_EPOLL 861#if EV_USE_EPOLL
555# include "ev_epoll.c" 862# include "ev_epoll.c"
556#endif 863#endif
557#if EV_USEV_POLL 864#if EV_USE_POLL
558# include "ev_poll.c" 865# include "ev_poll.c"
559#endif 866#endif
560#if EV_USE_SELECT 867#if EV_USE_SELECT
561# include "ev_select.c" 868# include "ev_select.c"
562#endif 869#endif
… …
572{ 879{
573 return EV_VERSION_MINOR; 880 return EV_VERSION_MINOR;
574} 881}
575 882
576/* return true if we are running with elevated privileges and should ignore env variables */ 883/* return true if we are running with elevated privileges and should ignore env variables */
577static int 884int inline_size
578enable_secure (void) 885enable_secure (void)
579{ 886{
580#ifdef WIN32 887#ifdef _WIN32
581 return 0; 888 return 0;
582#else 889#else
583 return getuid () != geteuid () 890 return getuid () != geteuid ()
584 || getgid () != getegid (); 891 || getgid () != getegid ();
585#endif 892#endif
586} 893}
587 894
588int 895unsigned int
589ev_method (EV_P) 896ev_supported_backends (void)
590{ 897{
591 return method; 898 unsigned int flags = 0;
592}
593 899
594int 900 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
595ev_init (EV_P_ int methods) 901 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
902 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
903 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
904 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
905
906 return flags;
907}
908
909unsigned int
910ev_recommended_backends (void)
596{ 911{
597 if (!method) 912 unsigned int flags = ev_supported_backends ();
913
914#ifndef __NetBSD__
915 /* kqueue is borked on everything but netbsd apparently */
916 /* it usually doesn't work correctly on anything but sockets and pipes */
917 flags &= ~EVBACKEND_KQUEUE;
918#endif
919#ifdef __APPLE__
920 // flags &= ~EVBACKEND_KQUEUE; for documentation
921 flags &= ~EVBACKEND_POLL;
922#endif
923
924 return flags;
925}
926
927unsigned int
928ev_embeddable_backends (void)
929{
930 return EVBACKEND_EPOLL
931 | EVBACKEND_KQUEUE
932 | EVBACKEND_PORT;
933}
934
935unsigned int
936ev_backend (EV_P)
937{
938 return backend;
939}
940
941unsigned int
942ev_loop_count (EV_P)
943{
944 return loop_count;
945}
946
947static void noinline
948loop_init (EV_P_ unsigned int flags)
949{
950 if (!backend)
598 { 951 {
599#if EV_USE_MONOTONIC 952#if EV_USE_MONOTONIC
600 { 953 {
601 struct timespec ts; 954 struct timespec ts;
602 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 955 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
603 have_monotonic = 1; 956 have_monotonic = 1;
604 } 957 }
605#endif 958#endif
606 959
607 rt_now = ev_time (); 960 ev_rt_now = ev_time ();
608 mn_now = get_clock (); 961 mn_now = get_clock ();
609 now_floor = mn_now; 962 now_floor = mn_now;
610 diff = rt_now - mn_now; 963 rtmn_diff = ev_rt_now - mn_now;
611 964
612 if (pipe (sigpipe)) 965 /* pid check not overridable via env */
613 return 0; 966#ifndef _WIN32
967 if (flags & EVFLAG_FORKCHECK)
968 curpid = getpid ();
969#endif
614 970
615 if (methods == EVMETHOD_AUTO) 971 if (!(flags & EVFLAG_NOENV)
616 if (!enable_secure () && getenv ("LIBmethodS")) 972 && !enable_secure ()
617 methods = atoi (getenv ("LIBmethodS")); 973 && getenv ("LIBEV_FLAGS"))
618 else 974 flags = atoi (getenv ("LIBEV_FLAGS"));
619 methods = EVMETHOD_ANY;
620 975
621 method = 0; 976 if (!(flags & 0x0000ffffUL))
977 flags |= ev_recommended_backends ();
978
979 backend = 0;
980 backend_fd = -1;
981#if EV_USE_INOTIFY
982 fs_fd = -2;
983#endif
984
985#if EV_USE_PORT
986 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
987#endif
622#if EV_USE_KQUEUE 988#if EV_USE_KQUEUE
623 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 989 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
624#endif 990#endif
625#if EV_USE_EPOLL 991#if EV_USE_EPOLL
626 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 992 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
627#endif 993#endif
628#if EV_USEV_POLL 994#if EV_USE_POLL
629 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 995 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
630#endif 996#endif
631#if EV_USE_SELECT 997#if EV_USE_SELECT
632 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 998 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
633#endif 999#endif
634 1000
635 if (method) 1001 ev_init (&sigev, sigcb);
1002 ev_set_priority (&sigev, EV_MAXPRI);
1003 }
1004}
1005
1006static void noinline
1007loop_destroy (EV_P)
1008{
1009 int i;
1010
1011#if EV_USE_INOTIFY
1012 if (fs_fd >= 0)
1013 close (fs_fd);
1014#endif
1015
1016 if (backend_fd >= 0)
1017 close (backend_fd);
1018
1019#if EV_USE_PORT
1020 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1021#endif
1022#if EV_USE_KQUEUE
1023 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
1024#endif
1025#if EV_USE_EPOLL
1026 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
1027#endif
1028#if EV_USE_POLL
1029 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
1030#endif
1031#if EV_USE_SELECT
1032 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
1033#endif
1034
1035 for (i = NUMPRI; i--; )
1036 {
1037 array_free (pending, [i]);
1038#if EV_IDLE_ENABLE
1039 array_free (idle, [i]);
1040#endif
1041 }
1042
1043 /* have to use the microsoft-never-gets-it-right macro */
1044 array_free (fdchange, EMPTY);
1045 array_free (timer, EMPTY);
1046#if EV_PERIODIC_ENABLE
1047 array_free (periodic, EMPTY);
1048#endif
1049 array_free (prepare, EMPTY);
1050 array_free (check, EMPTY);
1051
1052 backend = 0;
1053}
1054
1055void inline_size infy_fork (EV_P);
1056
1057void inline_size
1058loop_fork (EV_P)
1059{
1060#if EV_USE_PORT
1061 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1062#endif
1063#if EV_USE_KQUEUE
1064 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1065#endif
1066#if EV_USE_EPOLL
1067 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
1068#endif
1069#if EV_USE_INOTIFY
1070 infy_fork (EV_A);
1071#endif
1072
1073 if (ev_is_active (&sigev))
1074 {
1075 /* default loop */
1076
1077 ev_ref (EV_A);
1078 ev_io_stop (EV_A_ &sigev);
1079 close (sigpipe [0]);
1080 close (sigpipe [1]);
1081
1082 while (pipe (sigpipe))
1083 syserr ("(libev) error creating pipe");
1084
1085 siginit (EV_A);
1086 }
1087
1088 postfork = 0;
1089}
1090
1091#if EV_MULTIPLICITY
1092struct ev_loop *
1093ev_loop_new (unsigned int flags)
1094{
1095 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1096
1097 memset (loop, 0, sizeof (struct ev_loop));
1098
1099 loop_init (EV_A_ flags);
1100
1101 if (ev_backend (EV_A))
1102 return loop;
1103
1104 return 0;
1105}
1106
1107void
1108ev_loop_destroy (EV_P)
1109{
1110 loop_destroy (EV_A);
1111 ev_free (loop);
1112}
1113
1114void
1115ev_loop_fork (EV_P)
1116{
1117 postfork = 1;
1118}
1119
1120#endif
1121
1122#if EV_MULTIPLICITY
1123struct ev_loop *
1124ev_default_loop_init (unsigned int flags)
1125#else
1126int
1127ev_default_loop (unsigned int flags)
1128#endif
1129{
1130 if (sigpipe [0] == sigpipe [1])
1131 if (pipe (sigpipe))
1132 return 0;
1133
1134 if (!ev_default_loop_ptr)
1135 {
1136#if EV_MULTIPLICITY
1137 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
1138#else
1139 ev_default_loop_ptr = 1;
1140#endif
1141
1142 loop_init (EV_A_ flags);
1143
1144 if (ev_backend (EV_A))
636 { 1145 {
637 ev_watcher_init (&sigev, sigcb);
638 ev_set_priority (&sigev, EV_MAXPRI);
639 siginit (EV_A); 1146 siginit (EV_A);
640 1147
641#ifndef WIN32 1148#ifndef _WIN32
642 ev_signal_init (&childev, childcb, SIGCHLD); 1149 ev_signal_init (&childev, childcb, SIGCHLD);
643 ev_set_priority (&childev, EV_MAXPRI); 1150 ev_set_priority (&childev, EV_MAXPRI);
644 ev_signal_start (EV_A_ &childev); 1151 ev_signal_start (EV_A_ &childev);
645 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1152 ev_unref (EV_A); /* child watcher should not keep loop alive */
646#endif 1153#endif
647 } 1154 }
1155 else
1156 ev_default_loop_ptr = 0;
648 } 1157 }
649 1158
650 return method; 1159 return ev_default_loop_ptr;
1160}
1161
1162void
1163ev_default_destroy (void)
1164{
1165#if EV_MULTIPLICITY
1166 struct ev_loop *loop = ev_default_loop_ptr;
1167#endif
1168
1169#ifndef _WIN32
1170 ev_ref (EV_A); /* child watcher */
1171 ev_signal_stop (EV_A_ &childev);
1172#endif
1173
1174 ev_ref (EV_A); /* signal watcher */
1175 ev_io_stop (EV_A_ &sigev);
1176
1177 close (sigpipe [0]); sigpipe [0] = 0;
1178 close (sigpipe [1]); sigpipe [1] = 0;
1179
1180 loop_destroy (EV_A);
1181}
1182
1183void
1184ev_default_fork (void)
1185{
1186#if EV_MULTIPLICITY
1187 struct ev_loop *loop = ev_default_loop_ptr;
1188#endif
1189
1190 if (backend)
1191 postfork = 1;
651} 1192}
652 1193
653/*****************************************************************************/ 1194/*****************************************************************************/
654 1195
655void 1196void
656ev_fork_prepare (void) 1197ev_invoke (EV_P_ void *w, int revents)
657{ 1198{
658 /* nop */ 1199 EV_CB_INVOKE ((W)w, revents);
659} 1200}
660 1201
661void 1202void inline_speed
662ev_fork_parent (void)
663{
664 /* nop */
665}
666
667void
668ev_fork_child (void)
669{
670#if EV_USE_EPOLL
671 if (method == EVMETHOD_EPOLL)
672 epoll_postfork_child ();
673#endif
674
675 ev_io_stop (&sigev);
676 close (sigpipe [0]);
677 close (sigpipe [1]);
678 pipe (sigpipe);
679 siginit ();
680}
681
682/*****************************************************************************/
683
684static void
685call_pending (EV_P) 1203call_pending (EV_P)
686{ 1204{
687 int pri; 1205 int pri;
688 1206
689 for (pri = NUMPRI; pri--; ) 1207 for (pri = NUMPRI; pri--; )
690 while (pendingcnt [pri]) 1208 while (pendingcnt [pri])
691 { 1209 {
692 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1210 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
693 1211
694 if (p->w) 1212 if (expect_true (p->w))
695 { 1213 {
1214 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1215
696 p->w->pending = 0; 1216 p->w->pending = 0;
697 p->w->cb (EV_A_ p->w, p->events); 1217 EV_CB_INVOKE (p->w, p->events);
698 } 1218 }
699 } 1219 }
700} 1220}
701 1221
702static void 1222void inline_size
703timers_reify (EV_P) 1223timers_reify (EV_P)
704{ 1224{
705 while (timercnt && timers [0]->at <= mn_now) 1225 while (timercnt && ((WT)timers [0])->at <= mn_now)
706 { 1226 {
707 struct ev_timer *w = timers [0]; 1227 ev_timer *w = (ev_timer *)timers [0];
1228
1229 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
708 1230
709 /* first reschedule or stop timer */ 1231 /* first reschedule or stop timer */
710 if (w->repeat) 1232 if (w->repeat)
711 { 1233 {
712 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1234 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1235
713 w->at = mn_now + w->repeat; 1236 ((WT)w)->at += w->repeat;
1237 if (((WT)w)->at < mn_now)
1238 ((WT)w)->at = mn_now;
1239
714 downheap ((WT *)timers, timercnt, 0); 1240 downheap (timers, timercnt, 0);
715 } 1241 }
716 else 1242 else
717 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1243 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
718 1244
719 event ((W)w, EV_TIMEOUT); 1245 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
720 } 1246 }
721} 1247}
722 1248
723static void 1249#if EV_PERIODIC_ENABLE
1250void inline_size
724periodics_reify (EV_P) 1251periodics_reify (EV_P)
725{ 1252{
726 while (periodiccnt && periodics [0]->at <= rt_now) 1253 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
727 { 1254 {
728 struct ev_periodic *w = periodics [0]; 1255 ev_periodic *w = (ev_periodic *)periodics [0];
1256
1257 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
729 1258
730 /* first reschedule or stop timer */ 1259 /* first reschedule or stop timer */
731 if (w->interval) 1260 if (w->reschedule_cb)
732 { 1261 {
1262 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
1263 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1264 downheap (periodics, periodiccnt, 0);
1265 }
1266 else if (w->interval)
1267 {
733 w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; 1268 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1269 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
734 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); 1270 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
735 downheap ((WT *)periodics, periodiccnt, 0); 1271 downheap (periodics, periodiccnt, 0);
736 } 1272 }
737 else 1273 else
738 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1274 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
739 1275
740 event (EV_A_ (W)w, EV_PERIODIC); 1276 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
741 } 1277 }
742} 1278}
743 1279
744static void 1280static void noinline
745periodics_reschedule (EV_P_ ev_tstamp diff) 1281periodics_reschedule (EV_P)
746{ 1282{
747 int i; 1283 int i;
748 1284
749 /* adjust periodics after time jump */ 1285 /* adjust periodics after time jump */
750 for (i = 0; i < periodiccnt; ++i) 1286 for (i = 0; i < periodiccnt; ++i)
751 { 1287 {
752 struct ev_periodic *w = periodics [i]; 1288 ev_periodic *w = (ev_periodic *)periodics [i];
753 1289
1290 if (w->reschedule_cb)
1291 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
754 if (w->interval) 1292 else if (w->interval)
1293 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1294 }
1295
1296 /* now rebuild the heap */
1297 for (i = periodiccnt >> 1; i--; )
1298 downheap (periodics, periodiccnt, i);
1299}
1300#endif
1301
1302#if EV_IDLE_ENABLE
1303void inline_size
1304idle_reify (EV_P)
1305{
1306 if (expect_false (idleall))
1307 {
1308 int pri;
1309
1310 for (pri = NUMPRI; pri--; )
755 { 1311 {
756 ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; 1312 if (pendingcnt [pri])
1313 break;
757 1314
758 if (fabs (diff) >= 1e-4) 1315 if (idlecnt [pri])
759 { 1316 {
760 ev_periodic_stop (EV_A_ w); 1317 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
761 ev_periodic_start (EV_A_ w); 1318 break;
762
763 i = 0; /* restart loop, inefficient, but time jumps should be rare */
764 } 1319 }
765 } 1320 }
766 } 1321 }
767} 1322}
1323#endif
768 1324
769inline int 1325void inline_speed
770time_update_monotonic (EV_P) 1326time_update (EV_P_ ev_tstamp max_block)
771{
772 mn_now = get_clock ();
773
774 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
775 {
776 rt_now = mn_now + diff;
777 return 0;
778 }
779 else
780 {
781 now_floor = mn_now;
782 rt_now = ev_time ();
783 return 1;
784 }
785}
786
787static void
788time_update (EV_P)
789{ 1327{
790 int i; 1328 int i;
791 1329
792#if EV_USE_MONOTONIC 1330#if EV_USE_MONOTONIC
793 if (expect_true (have_monotonic)) 1331 if (expect_true (have_monotonic))
794 { 1332 {
795 if (time_update_monotonic (EV_A)) 1333 ev_tstamp odiff = rtmn_diff;
1334
1335 mn_now = get_clock ();
1336
1337 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1338 /* interpolate in the meantime */
1339 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
796 { 1340 {
797 ev_tstamp odiff = diff; 1341 ev_rt_now = rtmn_diff + mn_now;
798 1342 return;
799 for (i = 4; --i; ) /* loop a few times, before making important decisions */
800 {
801 diff = rt_now - mn_now;
802
803 if (fabs (odiff - diff) < MIN_TIMEJUMP)
804 return; /* all is well */
805
806 rt_now = ev_time ();
807 mn_now = get_clock ();
808 now_floor = mn_now;
809 }
810
811 periodics_reschedule (EV_A_ diff - odiff);
812 /* no timer adjustment, as the monotonic clock doesn't jump */
813 } 1343 }
1344
1345 now_floor = mn_now;
1346 ev_rt_now = ev_time ();
1347
1348 /* loop a few times, before making important decisions.
1349 * on the choice of "4": one iteration isn't enough,
1350 * in case we get preempted during the calls to
1351 * ev_time and get_clock. a second call is almost guaranteed
1352 * to succeed in that case, though. and looping a few more times
1353 * doesn't hurt either as we only do this on time-jumps or
1354 * in the unlikely event of having been preempted here.
1355 */
1356 for (i = 4; --i; )
1357 {
1358 rtmn_diff = ev_rt_now - mn_now;
1359
1360 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1361 return; /* all is well */
1362
1363 ev_rt_now = ev_time ();
1364 mn_now = get_clock ();
1365 now_floor = mn_now;
1366 }
1367
1368# if EV_PERIODIC_ENABLE
1369 periodics_reschedule (EV_A);
1370# endif
1371 /* no timer adjustment, as the monotonic clock doesn't jump */
1372 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
814 } 1373 }
815 else 1374 else
816#endif 1375#endif
817 { 1376 {
818 rt_now = ev_time (); 1377 ev_rt_now = ev_time ();
819 1378
820 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1379 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
821 { 1380 {
1381#if EV_PERIODIC_ENABLE
822 periodics_reschedule (EV_A_ rt_now - mn_now); 1382 periodics_reschedule (EV_A);
823 1383#endif
824 /* adjust timers. this is easy, as the offset is the same for all */ 1384 /* adjust timers. this is easy, as the offset is the same for all of them */
825 for (i = 0; i < timercnt; ++i) 1385 for (i = 0; i < timercnt; ++i)
826 timers [i]->at += diff; 1386 ((WT)timers [i])->at += ev_rt_now - mn_now;
827 } 1387 }
828 1388
829 mn_now = rt_now; 1389 mn_now = ev_rt_now;
830 } 1390 }
831} 1391}
832 1392
833void 1393void
834ev_ref (EV_P) 1394ev_ref (EV_P)
… …
845static int loop_done; 1405static int loop_done;
846 1406
847void 1407void
848ev_loop (EV_P_ int flags) 1408ev_loop (EV_P_ int flags)
849{ 1409{
850 double block;
851 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1410 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1411 ? EVUNLOOP_ONE
1412 : EVUNLOOP_CANCEL;
1413
1414 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
852 1415
853 do 1416 do
854 { 1417 {
1418#ifndef _WIN32
1419 if (expect_false (curpid)) /* penalise the forking check even more */
1420 if (expect_false (getpid () != curpid))
1421 {
1422 curpid = getpid ();
1423 postfork = 1;
1424 }
1425#endif
1426
1427#if EV_FORK_ENABLE
1428 /* we might have forked, so queue fork handlers */
1429 if (expect_false (postfork))
1430 if (forkcnt)
1431 {
1432 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1433 call_pending (EV_A);
1434 }
1435#endif
1436
855 /* queue check watchers (and execute them) */ 1437 /* queue prepare watchers (and execute them) */
856 if (expect_false (preparecnt)) 1438 if (expect_false (preparecnt))
857 { 1439 {
858 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1440 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
859 call_pending (EV_A); 1441 call_pending (EV_A);
860 } 1442 }
861 1443
1444 if (expect_false (!activecnt))
1445 break;
1446
1447 /* we might have forked, so reify kernel state if necessary */
1448 if (expect_false (postfork))
1449 loop_fork (EV_A);
1450
862 /* update fd-related kernel structures */ 1451 /* update fd-related kernel structures */
863 fd_reify (EV_A); 1452 fd_reify (EV_A);
864 1453
865 /* calculate blocking time */ 1454 /* calculate blocking time */
1455 {
1456 ev_tstamp block;
866 1457
867 /* we only need this for !monotonic clockor timers, but as we basically 1458 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
868 always have timers, we just calculate it always */ 1459 block = 0.; /* do not block at all */
869#if EV_USE_MONOTONIC
870 if (expect_true (have_monotonic))
871 time_update_monotonic (EV_A);
872 else 1460 else
873#endif
874 { 1461 {
875 rt_now = ev_time (); 1462 /* update time to cancel out callback processing overhead */
876 mn_now = rt_now; 1463 time_update (EV_A_ 1e100);
877 }
878 1464
879 if (flags & EVLOOP_NONBLOCK || idlecnt)
880 block = 0.;
881 else
882 {
883 block = MAX_BLOCKTIME; 1465 block = MAX_BLOCKTIME;
884 1466
885 if (timercnt) 1467 if (timercnt)
886 { 1468 {
887 ev_tstamp to = timers [0]->at - mn_now + method_fudge; 1469 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
888 if (block > to) block = to; 1470 if (block > to) block = to;
889 } 1471 }
890 1472
1473#if EV_PERIODIC_ENABLE
891 if (periodiccnt) 1474 if (periodiccnt)
892 { 1475 {
893 ev_tstamp to = periodics [0]->at - rt_now + method_fudge; 1476 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
894 if (block > to) block = to; 1477 if (block > to) block = to;
895 } 1478 }
1479#endif
896 1480
897 if (block < 0.) block = 0.; 1481 if (expect_false (block < 0.)) block = 0.;
898 } 1482 }
899 1483
1484 ++loop_count;
900 method_poll (EV_A_ block); 1485 backend_poll (EV_A_ block);
901 1486
902 /* update rt_now, do magic */ 1487 /* update ev_rt_now, do magic */
903 time_update (EV_A); 1488 time_update (EV_A_ block);
1489 }
904 1490
905 /* queue pending timers and reschedule them */ 1491 /* queue pending timers and reschedule them */
906 timers_reify (EV_A); /* relative timers called last */ 1492 timers_reify (EV_A); /* relative timers called last */
1493#if EV_PERIODIC_ENABLE
907 periodics_reify (EV_A); /* absolute timers called first */ 1494 periodics_reify (EV_A); /* absolute timers called first */
1495#endif
908 1496
1497#if EV_IDLE_ENABLE
909 /* queue idle watchers unless io or timers are pending */ 1498 /* queue idle watchers unless other events are pending */
910 if (!pendingcnt) 1499 idle_reify (EV_A);
911 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1500#endif
912 1501
913 /* queue check watchers, to be executed first */ 1502 /* queue check watchers, to be executed first */
914 if (checkcnt) 1503 if (expect_false (checkcnt))
915 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1504 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
916 1505
917 call_pending (EV_A); 1506 call_pending (EV_A);
1507
918 } 1508 }
919 while (activecnt && !loop_done); 1509 while (expect_true (activecnt && !loop_done));
920 1510
921 if (loop_done != 2) 1511 if (loop_done == EVUNLOOP_ONE)
922 loop_done = 0; 1512 loop_done = EVUNLOOP_CANCEL;
923} 1513}
924 1514
925void 1515void
926ev_unloop (EV_P_ int how) 1516ev_unloop (EV_P_ int how)
927{ 1517{
928 loop_done = how; 1518 loop_done = how;
929} 1519}
930 1520
931/*****************************************************************************/ 1521/*****************************************************************************/
932 1522
933inline void 1523void inline_size
934wlist_add (WL *head, WL elem) 1524wlist_add (WL *head, WL elem)
935{ 1525{
936 elem->next = *head; 1526 elem->next = *head;
937 *head = elem; 1527 *head = elem;
938} 1528}
939 1529
940inline void 1530void inline_size
941wlist_del (WL *head, WL elem) 1531wlist_del (WL *head, WL elem)
942{ 1532{
943 while (*head) 1533 while (*head)
944 { 1534 {
945 if (*head == elem) 1535 if (*head == elem)
… …
950 1540
951 head = &(*head)->next; 1541 head = &(*head)->next;
952 } 1542 }
953} 1543}
954 1544
955inline void 1545void inline_speed
956ev_clear_pending (EV_P_ W w) 1546clear_pending (EV_P_ W w)
957{ 1547{
958 if (w->pending) 1548 if (w->pending)
959 { 1549 {
960 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1550 pendings [ABSPRI (w)][w->pending - 1].w = 0;
961 w->pending = 0; 1551 w->pending = 0;
962 } 1552 }
963} 1553}
964 1554
965inline void 1555int
1556ev_clear_pending (EV_P_ void *w)
1557{
1558 W w_ = (W)w;
1559 int pending = w_->pending;
1560
1561 if (expect_true (pending))
1562 {
1563 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1564 w_->pending = 0;
1565 p->w = 0;
1566 return p->events;
1567 }
1568 else
1569 return 0;
1570}
1571
1572void inline_size
1573pri_adjust (EV_P_ W w)
1574{
1575 int pri = w->priority;
1576 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1577 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1578 w->priority = pri;
1579}
1580
1581void inline_speed
966ev_start (EV_P_ W w, int active) 1582ev_start (EV_P_ W w, int active)
967{ 1583{
968 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1584 pri_adjust (EV_A_ w);
969 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
970
971 w->active = active; 1585 w->active = active;
972 ev_ref (EV_A); 1586 ev_ref (EV_A);
973} 1587}
974 1588
975inline void 1589void inline_size
976ev_stop (EV_P_ W w) 1590ev_stop (EV_P_ W w)
977{ 1591{
978 ev_unref (EV_A); 1592 ev_unref (EV_A);
979 w->active = 0; 1593 w->active = 0;
980} 1594}
981 1595
982/*****************************************************************************/ 1596/*****************************************************************************/
983 1597
984void 1598void noinline
985ev_io_start (EV_P_ struct ev_io *w) 1599ev_io_start (EV_P_ ev_io *w)
986{ 1600{
987 int fd = w->fd; 1601 int fd = w->fd;
988 1602
989 if (ev_is_active (w)) 1603 if (expect_false (ev_is_active (w)))
990 return; 1604 return;
991 1605
992 assert (("ev_io_start called with negative fd", fd >= 0)); 1606 assert (("ev_io_start called with negative fd", fd >= 0));
993 1607
994 ev_start (EV_A_ (W)w, 1); 1608 ev_start (EV_A_ (W)w, 1);
995 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 1609 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
996 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1610 wlist_add (&anfds[fd].head, (WL)w);
997 1611
998 fd_change (EV_A_ fd); 1612 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1613 w->events &= ~EV_IOFDSET;
999} 1614}
1000 1615
1001void 1616void noinline
1002ev_io_stop (EV_P_ struct ev_io *w) 1617ev_io_stop (EV_P_ ev_io *w)
1003{ 1618{
1004 ev_clear_pending (EV_A_ (W)w); 1619 clear_pending (EV_A_ (W)w);
1005 if (!ev_is_active (w)) 1620 if (expect_false (!ev_is_active (w)))
1006 return; 1621 return;
1007 1622
1623 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1624
1008 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1625 wlist_del (&anfds[w->fd].head, (WL)w);
1009 ev_stop (EV_A_ (W)w); 1626 ev_stop (EV_A_ (W)w);
1010 1627
1011 fd_change (EV_A_ w->fd); 1628 fd_change (EV_A_ w->fd, 1);
1012} 1629}
1013 1630
1014void 1631void noinline
1015ev_timer_start (EV_P_ struct ev_timer *w) 1632ev_timer_start (EV_P_ ev_timer *w)
1016{ 1633{
1017 if (ev_is_active (w)) 1634 if (expect_false (ev_is_active (w)))
1018 return; 1635 return;
1019 1636
1020 w->at += mn_now; 1637 ((WT)w)->at += mn_now;
1021 1638
1022 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1639 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1023 1640
1024 ev_start (EV_A_ (W)w, ++timercnt); 1641 ev_start (EV_A_ (W)w, ++timercnt);
1025 array_needsize (timers, timermax, timercnt, ); 1642 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1026 timers [timercnt - 1] = w; 1643 timers [timercnt - 1] = (WT)w;
1027 upheap ((WT *)timers, timercnt - 1); 1644 upheap (timers, timercnt - 1);
1028}
1029 1645
1030void 1646 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1647}
1648
1649void noinline
1031ev_timer_stop (EV_P_ struct ev_timer *w) 1650ev_timer_stop (EV_P_ ev_timer *w)
1032{ 1651{
1033 ev_clear_pending (EV_A_ (W)w); 1652 clear_pending (EV_A_ (W)w);
1034 if (!ev_is_active (w)) 1653 if (expect_false (!ev_is_active (w)))
1035 return; 1654 return;
1036 1655
1037 if (w->active < timercnt--) 1656 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1657
1658 {
1659 int active = ((W)w)->active;
1660
1661 if (expect_true (--active < --timercnt))
1038 { 1662 {
1039 timers [w->active - 1] = timers [timercnt]; 1663 timers [active] = timers [timercnt];
1040 downheap ((WT *)timers, timercnt, w->active - 1); 1664 adjustheap (timers, timercnt, active);
1041 } 1665 }
1666 }
1042 1667
1043 w->at = w->repeat; 1668 ((WT)w)->at -= mn_now;
1044 1669
1045 ev_stop (EV_A_ (W)w); 1670 ev_stop (EV_A_ (W)w);
1046} 1671}
1047 1672
1048void 1673void noinline
1049ev_timer_again (EV_P_ struct ev_timer *w) 1674ev_timer_again (EV_P_ ev_timer *w)
1050{ 1675{
1051 if (ev_is_active (w)) 1676 if (ev_is_active (w))
1052 { 1677 {
1053 if (w->repeat) 1678 if (w->repeat)
1054 { 1679 {
1055 w->at = mn_now + w->repeat; 1680 ((WT)w)->at = mn_now + w->repeat;
1056 downheap ((WT *)timers, timercnt, w->active - 1); 1681 adjustheap (timers, timercnt, ((W)w)->active - 1);
1057 } 1682 }
1058 else 1683 else
1059 ev_timer_stop (EV_A_ w); 1684 ev_timer_stop (EV_A_ w);
1060 } 1685 }
1061 else if (w->repeat) 1686 else if (w->repeat)
1687 {
1688 w->at = w->repeat;
1062 ev_timer_start (EV_A_ w); 1689 ev_timer_start (EV_A_ w);
1690 }
1063} 1691}
1064 1692
1065void 1693#if EV_PERIODIC_ENABLE
1694void noinline
1066ev_periodic_start (EV_P_ struct ev_periodic *w) 1695ev_periodic_start (EV_P_ ev_periodic *w)
1067{ 1696{
1068 if (ev_is_active (w)) 1697 if (expect_false (ev_is_active (w)))
1069 return; 1698 return;
1070 1699
1700 if (w->reschedule_cb)
1701 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1702 else if (w->interval)
1703 {
1071 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1704 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1072
1073 /* this formula differs from the one in periodic_reify because we do not always round up */ 1705 /* this formula differs from the one in periodic_reify because we do not always round up */
1074 if (w->interval)
1075 w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; 1706 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1707 }
1708 else
1709 ((WT)w)->at = w->offset;
1076 1710
1077 ev_start (EV_A_ (W)w, ++periodiccnt); 1711 ev_start (EV_A_ (W)w, ++periodiccnt);
1078 array_needsize (periodics, periodicmax, periodiccnt, ); 1712 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1079 periodics [periodiccnt - 1] = w; 1713 periodics [periodiccnt - 1] = (WT)w;
1080 upheap ((WT *)periodics, periodiccnt - 1); 1714 upheap (periodics, periodiccnt - 1);
1081}
1082 1715
1083void 1716 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1717}
1718
1719void noinline
1084ev_periodic_stop (EV_P_ struct ev_periodic *w) 1720ev_periodic_stop (EV_P_ ev_periodic *w)
1085{ 1721{
1086 ev_clear_pending (EV_A_ (W)w); 1722 clear_pending (EV_A_ (W)w);
1087 if (!ev_is_active (w)) 1723 if (expect_false (!ev_is_active (w)))
1088 return; 1724 return;
1089 1725
1090 if (w->active < periodiccnt--) 1726 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1727
1728 {
1729 int active = ((W)w)->active;
1730
1731 if (expect_true (--active < --periodiccnt))
1091 { 1732 {
1092 periodics [w->active - 1] = periodics [periodiccnt]; 1733 periodics [active] = periodics [periodiccnt];
1093 downheap ((WT *)periodics, periodiccnt, w->active - 1); 1734 adjustheap (periodics, periodiccnt, active);
1094 } 1735 }
1736 }
1095 1737
1096 ev_stop (EV_A_ (W)w); 1738 ev_stop (EV_A_ (W)w);
1097} 1739}
1740
1741void noinline
1742ev_periodic_again (EV_P_ ev_periodic *w)
1743{
1744 /* TODO: use adjustheap and recalculation */
1745 ev_periodic_stop (EV_A_ w);
1746 ev_periodic_start (EV_A_ w);
1747}
1748#endif
1098 1749
1099#ifndef SA_RESTART 1750#ifndef SA_RESTART
1100# define SA_RESTART 0 1751# define SA_RESTART 0
1101#endif 1752#endif
1102 1753
1103void 1754void noinline
1104ev_signal_start (EV_P_ struct ev_signal *w) 1755ev_signal_start (EV_P_ ev_signal *w)
1105{ 1756{
1757#if EV_MULTIPLICITY
1758 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1759#endif
1106 if (ev_is_active (w)) 1760 if (expect_false (ev_is_active (w)))
1107 return; 1761 return;
1108 1762
1109 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1763 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1110 1764
1765 {
1766#ifndef _WIN32
1767 sigset_t full, prev;
1768 sigfillset (&full);
1769 sigprocmask (SIG_SETMASK, &full, &prev);
1770#endif
1771
1772 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1773
1774#ifndef _WIN32
1775 sigprocmask (SIG_SETMASK, &prev, 0);
1776#endif
1777 }
1778
1111 ev_start (EV_A_ (W)w, 1); 1779 ev_start (EV_A_ (W)w, 1);
1112 array_needsize (signals, signalmax, w->signum, signals_init);
1113 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1780 wlist_add (&signals [w->signum - 1].head, (WL)w);
1114 1781
1115 if (!w->next) 1782 if (!((WL)w)->next)
1116 { 1783 {
1784#if _WIN32
1785 signal (w->signum, sighandler);
1786#else
1117 struct sigaction sa; 1787 struct sigaction sa;
1118 sa.sa_handler = sighandler; 1788 sa.sa_handler = sighandler;
1119 sigfillset (&sa.sa_mask); 1789 sigfillset (&sa.sa_mask);
1120 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 1790 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1121 sigaction (w->signum, &sa, 0); 1791 sigaction (w->signum, &sa, 0);
1792#endif
1122 } 1793 }
1123} 1794}
1124 1795
1125void 1796void noinline
1126ev_signal_stop (EV_P_ struct ev_signal *w) 1797ev_signal_stop (EV_P_ ev_signal *w)
1127{ 1798{
1128 ev_clear_pending (EV_A_ (W)w); 1799 clear_pending (EV_A_ (W)w);
1129 if (!ev_is_active (w)) 1800 if (expect_false (!ev_is_active (w)))
1130 return; 1801 return;
1131 1802
1132 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1803 wlist_del (&signals [w->signum - 1].head, (WL)w);
1133 ev_stop (EV_A_ (W)w); 1804 ev_stop (EV_A_ (W)w);
1134 1805
1135 if (!signals [w->signum - 1].head) 1806 if (!signals [w->signum - 1].head)
1136 signal (w->signum, SIG_DFL); 1807 signal (w->signum, SIG_DFL);
1137} 1808}
1138 1809
1139void 1810void
1140ev_idle_start (EV_P_ struct ev_idle *w) 1811ev_child_start (EV_P_ ev_child *w)
1141{ 1812{
1813#if EV_MULTIPLICITY
1814 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1815#endif
1142 if (ev_is_active (w)) 1816 if (expect_false (ev_is_active (w)))
1143 return; 1817 return;
1144 1818
1145 ev_start (EV_A_ (W)w, ++idlecnt); 1819 ev_start (EV_A_ (W)w, 1);
1146 array_needsize (idles, idlemax, idlecnt, ); 1820 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1147 idles [idlecnt - 1] = w;
1148} 1821}
1149 1822
1150void 1823void
1151ev_idle_stop (EV_P_ struct ev_idle *w) 1824ev_child_stop (EV_P_ ev_child *w)
1152{ 1825{
1153 ev_clear_pending (EV_A_ (W)w); 1826 clear_pending (EV_A_ (W)w);
1154 if (ev_is_active (w)) 1827 if (expect_false (!ev_is_active (w)))
1155 return; 1828 return;
1156 1829
1157 idles [w->active - 1] = idles [--idlecnt]; 1830 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1158 ev_stop (EV_A_ (W)w); 1831 ev_stop (EV_A_ (W)w);
1159} 1832}
1160 1833
1834#if EV_STAT_ENABLE
1835
1836# ifdef _WIN32
1837# undef lstat
1838# define lstat(a,b) _stati64 (a,b)
1839# endif
1840
1841#define DEF_STAT_INTERVAL 5.0074891
1842#define MIN_STAT_INTERVAL 0.1074891
1843
1844static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1845
1846#if EV_USE_INOTIFY
1847# define EV_INOTIFY_BUFSIZE 8192
1848
1849static void noinline
1850infy_add (EV_P_ ev_stat *w)
1851{
1852 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
1853
1854 if (w->wd < 0)
1855 {
1856 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1857
1858 /* monitor some parent directory for speedup hints */
1859 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1860 {
1861 char path [4096];
1862 strcpy (path, w->path);
1863
1864 do
1865 {
1866 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1867 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1868
1869 char *pend = strrchr (path, '/');
1870
1871 if (!pend)
1872 break; /* whoops, no '/', complain to your admin */
1873
1874 *pend = 0;
1875 w->wd = inotify_add_watch (fs_fd, path, mask);
1876 }
1877 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1878 }
1879 }
1880 else
1881 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1882
1883 if (w->wd >= 0)
1884 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1885}
1886
1887static void noinline
1888infy_del (EV_P_ ev_stat *w)
1889{
1890 int slot;
1891 int wd = w->wd;
1892
1893 if (wd < 0)
1894 return;
1895
1896 w->wd = -2;
1897 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1898 wlist_del (&fs_hash [slot].head, (WL)w);
1899
1900 /* remove this watcher, if others are watching it, they will rearm */
1901 inotify_rm_watch (fs_fd, wd);
1902}
1903
1904static void noinline
1905infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1906{
1907 if (slot < 0)
1908 /* overflow, need to check for all hahs slots */
1909 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1910 infy_wd (EV_A_ slot, wd, ev);
1911 else
1912 {
1913 WL w_;
1914
1915 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1916 {
1917 ev_stat *w = (ev_stat *)w_;
1918 w_ = w_->next; /* lets us remove this watcher and all before it */
1919
1920 if (w->wd == wd || wd == -1)
1921 {
1922 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1923 {
1924 w->wd = -1;
1925 infy_add (EV_A_ w); /* re-add, no matter what */
1926 }
1927
1928 stat_timer_cb (EV_A_ &w->timer, 0);
1929 }
1930 }
1931 }
1932}
1933
1934static void
1935infy_cb (EV_P_ ev_io *w, int revents)
1936{
1937 char buf [EV_INOTIFY_BUFSIZE];
1938 struct inotify_event *ev = (struct inotify_event *)buf;
1939 int ofs;
1940 int len = read (fs_fd, buf, sizeof (buf));
1941
1942 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1943 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1944}
1945
1946void inline_size
1947infy_init (EV_P)
1948{
1949 if (fs_fd != -2)
1950 return;
1951
1952 fs_fd = inotify_init ();
1953
1954 if (fs_fd >= 0)
1955 {
1956 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1957 ev_set_priority (&fs_w, EV_MAXPRI);
1958 ev_io_start (EV_A_ &fs_w);
1959 }
1960}
1961
1962void inline_size
1963infy_fork (EV_P)
1964{
1965 int slot;
1966
1967 if (fs_fd < 0)
1968 return;
1969
1970 close (fs_fd);
1971 fs_fd = inotify_init ();
1972
1973 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1974 {
1975 WL w_ = fs_hash [slot].head;
1976 fs_hash [slot].head = 0;
1977
1978 while (w_)
1979 {
1980 ev_stat *w = (ev_stat *)w_;
1981 w_ = w_->next; /* lets us add this watcher */
1982
1983 w->wd = -1;
1984
1985 if (fs_fd >= 0)
1986 infy_add (EV_A_ w); /* re-add, no matter what */
1987 else
1988 ev_timer_start (EV_A_ &w->timer);
1989 }
1990
1991 }
1992}
1993
1994#endif
1995
1161void 1996void
1997ev_stat_stat (EV_P_ ev_stat *w)
1998{
1999 if (lstat (w->path, &w->attr) < 0)
2000 w->attr.st_nlink = 0;
2001 else if (!w->attr.st_nlink)
2002 w->attr.st_nlink = 1;
2003}
2004
2005static void noinline
2006stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2007{
2008 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2009
2010 /* we copy this here each the time so that */
2011 /* prev has the old value when the callback gets invoked */
2012 w->prev = w->attr;
2013 ev_stat_stat (EV_A_ w);
2014
2015 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2016 if (
2017 w->prev.st_dev != w->attr.st_dev
2018 || w->prev.st_ino != w->attr.st_ino
2019 || w->prev.st_mode != w->attr.st_mode
2020 || w->prev.st_nlink != w->attr.st_nlink
2021 || w->prev.st_uid != w->attr.st_uid
2022 || w->prev.st_gid != w->attr.st_gid
2023 || w->prev.st_rdev != w->attr.st_rdev
2024 || w->prev.st_size != w->attr.st_size
2025 || w->prev.st_atime != w->attr.st_atime
2026 || w->prev.st_mtime != w->attr.st_mtime
2027 || w->prev.st_ctime != w->attr.st_ctime
2028 ) {
2029 #if EV_USE_INOTIFY
2030 infy_del (EV_A_ w);
2031 infy_add (EV_A_ w);
2032 ev_stat_stat (EV_A_ w); /* avoid race... */
2033 #endif
2034
2035 ev_feed_event (EV_A_ w, EV_STAT);
2036 }
2037}
2038
2039void
2040ev_stat_start (EV_P_ ev_stat *w)
2041{
2042 if (expect_false (ev_is_active (w)))
2043 return;
2044
2045 /* since we use memcmp, we need to clear any padding data etc. */
2046 memset (&w->prev, 0, sizeof (ev_statdata));
2047 memset (&w->attr, 0, sizeof (ev_statdata));
2048
2049 ev_stat_stat (EV_A_ w);
2050
2051 if (w->interval < MIN_STAT_INTERVAL)
2052 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2053
2054 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2055 ev_set_priority (&w->timer, ev_priority (w));
2056
2057#if EV_USE_INOTIFY
2058 infy_init (EV_A);
2059
2060 if (fs_fd >= 0)
2061 infy_add (EV_A_ w);
2062 else
2063#endif
2064 ev_timer_start (EV_A_ &w->timer);
2065
2066 ev_start (EV_A_ (W)w, 1);
2067}
2068
2069void
2070ev_stat_stop (EV_P_ ev_stat *w)
2071{
2072 clear_pending (EV_A_ (W)w);
2073 if (expect_false (!ev_is_active (w)))
2074 return;
2075
2076#if EV_USE_INOTIFY
2077 infy_del (EV_A_ w);
2078#endif
2079 ev_timer_stop (EV_A_ &w->timer);
2080
2081 ev_stop (EV_A_ (W)w);
2082}
2083#endif
2084
2085#if EV_IDLE_ENABLE
2086void
2087ev_idle_start (EV_P_ ev_idle *w)
2088{
2089 if (expect_false (ev_is_active (w)))
2090 return;
2091
2092 pri_adjust (EV_A_ (W)w);
2093
2094 {
2095 int active = ++idlecnt [ABSPRI (w)];
2096
2097 ++idleall;
2098 ev_start (EV_A_ (W)w, active);
2099
2100 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2101 idles [ABSPRI (w)][active - 1] = w;
2102 }
2103}
2104
2105void
2106ev_idle_stop (EV_P_ ev_idle *w)
2107{
2108 clear_pending (EV_A_ (W)w);
2109 if (expect_false (!ev_is_active (w)))
2110 return;
2111
2112 {
2113 int active = ((W)w)->active;
2114
2115 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2116 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2117
2118 ev_stop (EV_A_ (W)w);
2119 --idleall;
2120 }
2121}
2122#endif
2123
2124void
1162ev_prepare_start (EV_P_ struct ev_prepare *w) 2125ev_prepare_start (EV_P_ ev_prepare *w)
1163{ 2126{
1164 if (ev_is_active (w)) 2127 if (expect_false (ev_is_active (w)))
1165 return; 2128 return;
1166 2129
1167 ev_start (EV_A_ (W)w, ++preparecnt); 2130 ev_start (EV_A_ (W)w, ++preparecnt);
1168 array_needsize (prepares, preparemax, preparecnt, ); 2131 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1169 prepares [preparecnt - 1] = w; 2132 prepares [preparecnt - 1] = w;
1170} 2133}
1171 2134
1172void 2135void
1173ev_prepare_stop (EV_P_ struct ev_prepare *w) 2136ev_prepare_stop (EV_P_ ev_prepare *w)
1174{ 2137{
1175 ev_clear_pending (EV_A_ (W)w); 2138 clear_pending (EV_A_ (W)w);
1176 if (ev_is_active (w)) 2139 if (expect_false (!ev_is_active (w)))
1177 return; 2140 return;
1178 2141
2142 {
2143 int active = ((W)w)->active;
1179 prepares [w->active - 1] = prepares [--preparecnt]; 2144 prepares [active - 1] = prepares [--preparecnt];
2145 ((W)prepares [active - 1])->active = active;
2146 }
2147
1180 ev_stop (EV_A_ (W)w); 2148 ev_stop (EV_A_ (W)w);
1181} 2149}
1182 2150
1183void 2151void
1184ev_check_start (EV_P_ struct ev_check *w) 2152ev_check_start (EV_P_ ev_check *w)
1185{ 2153{
1186 if (ev_is_active (w)) 2154 if (expect_false (ev_is_active (w)))
1187 return; 2155 return;
1188 2156
1189 ev_start (EV_A_ (W)w, ++checkcnt); 2157 ev_start (EV_A_ (W)w, ++checkcnt);
1190 array_needsize (checks, checkmax, checkcnt, ); 2158 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1191 checks [checkcnt - 1] = w; 2159 checks [checkcnt - 1] = w;
1192} 2160}
1193 2161
1194void 2162void
1195ev_check_stop (EV_P_ struct ev_check *w) 2163ev_check_stop (EV_P_ ev_check *w)
1196{ 2164{
1197 ev_clear_pending (EV_A_ (W)w); 2165 clear_pending (EV_A_ (W)w);
1198 if (ev_is_active (w)) 2166 if (expect_false (!ev_is_active (w)))
1199 return; 2167 return;
1200 2168
2169 {
2170 int active = ((W)w)->active;
1201 checks [w->active - 1] = checks [--checkcnt]; 2171 checks [active - 1] = checks [--checkcnt];
2172 ((W)checks [active - 1])->active = active;
2173 }
2174
1202 ev_stop (EV_A_ (W)w); 2175 ev_stop (EV_A_ (W)w);
1203} 2176}
1204 2177
1205void 2178#if EV_EMBED_ENABLE
1206ev_child_start (EV_P_ struct ev_child *w) 2179void noinline
2180ev_embed_sweep (EV_P_ ev_embed *w)
1207{ 2181{
2182 ev_loop (w->loop, EVLOOP_NONBLOCK);
2183}
2184
2185static void
2186embed_cb (EV_P_ ev_io *io, int revents)
2187{
2188 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2189
1208 if (ev_is_active (w)) 2190 if (ev_cb (w))
2191 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2192 else
2193 ev_embed_sweep (loop, w);
2194}
2195
2196void
2197ev_embed_start (EV_P_ ev_embed *w)
2198{
2199 if (expect_false (ev_is_active (w)))
1209 return; 2200 return;
2201
2202 {
2203 struct ev_loop *loop = w->loop;
2204 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2205 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2206 }
2207
2208 ev_set_priority (&w->io, ev_priority (w));
2209 ev_io_start (EV_A_ &w->io);
1210 2210
1211 ev_start (EV_A_ (W)w, 1); 2211 ev_start (EV_A_ (W)w, 1);
1212 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1213} 2212}
1214 2213
1215void 2214void
1216ev_child_stop (EV_P_ struct ev_child *w) 2215ev_embed_stop (EV_P_ ev_embed *w)
1217{ 2216{
1218 ev_clear_pending (EV_A_ (W)w); 2217 clear_pending (EV_A_ (W)w);
1219 if (ev_is_active (w)) 2218 if (expect_false (!ev_is_active (w)))
1220 return; 2219 return;
1221 2220
1222 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 2221 ev_io_stop (EV_A_ &w->io);
2222
1223 ev_stop (EV_A_ (W)w); 2223 ev_stop (EV_A_ (W)w);
1224} 2224}
2225#endif
2226
2227#if EV_FORK_ENABLE
2228void
2229ev_fork_start (EV_P_ ev_fork *w)
2230{
2231 if (expect_false (ev_is_active (w)))
2232 return;
2233
2234 ev_start (EV_A_ (W)w, ++forkcnt);
2235 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2236 forks [forkcnt - 1] = w;
2237}
2238
2239void
2240ev_fork_stop (EV_P_ ev_fork *w)
2241{
2242 clear_pending (EV_A_ (W)w);
2243 if (expect_false (!ev_is_active (w)))
2244 return;
2245
2246 {
2247 int active = ((W)w)->active;
2248 forks [active - 1] = forks [--forkcnt];
2249 ((W)forks [active - 1])->active = active;
2250 }
2251
2252 ev_stop (EV_A_ (W)w);
2253}
2254#endif
1225 2255
1226/*****************************************************************************/ 2256/*****************************************************************************/
1227 2257
1228struct ev_once 2258struct ev_once
1229{ 2259{
1230 struct ev_io io; 2260 ev_io io;
1231 struct ev_timer to; 2261 ev_timer to;
1232 void (*cb)(int revents, void *arg); 2262 void (*cb)(int revents, void *arg);
1233 void *arg; 2263 void *arg;
1234}; 2264};
1235 2265
1236static void 2266static void
… …
1239 void (*cb)(int revents, void *arg) = once->cb; 2269 void (*cb)(int revents, void *arg) = once->cb;
1240 void *arg = once->arg; 2270 void *arg = once->arg;
1241 2271
1242 ev_io_stop (EV_A_ &once->io); 2272 ev_io_stop (EV_A_ &once->io);
1243 ev_timer_stop (EV_A_ &once->to); 2273 ev_timer_stop (EV_A_ &once->to);
1244 free (once); 2274 ev_free (once);
1245 2275
1246 cb (revents, arg); 2276 cb (revents, arg);
1247} 2277}
1248 2278
1249static void 2279static void
1250once_cb_io (EV_P_ struct ev_io *w, int revents) 2280once_cb_io (EV_P_ ev_io *w, int revents)
1251{ 2281{
1252 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2282 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1253} 2283}
1254 2284
1255static void 2285static void
1256once_cb_to (EV_P_ struct ev_timer *w, int revents) 2286once_cb_to (EV_P_ ev_timer *w, int revents)
1257{ 2287{
1258 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2288 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1259} 2289}
1260 2290
1261void 2291void
1262ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2292ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1263{ 2293{
1264 struct ev_once *once = malloc (sizeof (struct ev_once)); 2294 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1265 2295
1266 if (!once) 2296 if (expect_false (!once))
2297 {
1267 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2298 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1268 else 2299 return;
1269 { 2300 }
2301
1270 once->cb = cb; 2302 once->cb = cb;
1271 once->arg = arg; 2303 once->arg = arg;
1272 2304
1273 ev_watcher_init (&once->io, once_cb_io); 2305 ev_init (&once->io, once_cb_io);
1274 if (fd >= 0) 2306 if (fd >= 0)
1275 { 2307 {
1276 ev_io_set (&once->io, fd, events); 2308 ev_io_set (&once->io, fd, events);
1277 ev_io_start (EV_A_ &once->io); 2309 ev_io_start (EV_A_ &once->io);
1278 } 2310 }
1279 2311
1280 ev_watcher_init (&once->to, once_cb_to); 2312 ev_init (&once->to, once_cb_to);
1281 if (timeout >= 0.) 2313 if (timeout >= 0.)
1282 { 2314 {
1283 ev_timer_set (&once->to, timeout, 0.); 2315 ev_timer_set (&once->to, timeout, 0.);
1284 ev_timer_start (EV_A_ &once->to); 2316 ev_timer_start (EV_A_ &once->to);
1285 }
1286 }
1287}
1288
1289/*****************************************************************************/
1290
1291#if 0
1292
1293struct ev_io wio;
1294
1295static void
1296sin_cb (struct ev_io *w, int revents)
1297{
1298 fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1299}
1300
1301static void
1302ocb (struct ev_timer *w, int revents)
1303{
1304 //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1305 ev_timer_stop (w);
1306 ev_timer_start (w);
1307}
1308
1309static void
1310scb (struct ev_signal *w, int revents)
1311{
1312 fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1313 ev_io_stop (&wio);
1314 ev_io_start (&wio);
1315}
1316
1317static void
1318gcb (struct ev_signal *w, int revents)
1319{
1320 fprintf (stderr, "generic %x\n", revents);
1321
1322}
1323
1324int main (void)
1325{
1326 ev_init (0);
1327
1328 ev_io_init (&wio, sin_cb, 0, EV_READ);
1329 ev_io_start (&wio);
1330
1331 struct ev_timer t[10000];
1332
1333#if 0
1334 int i;
1335 for (i = 0; i < 10000; ++i)
1336 { 2317 }
1337 struct ev_timer *w = t + i;
1338 ev_watcher_init (w, ocb, i);
1339 ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1340 ev_timer_start (w);
1341 if (drand48 () < 0.5)
1342 ev_timer_stop (w);
1343 }
1344#endif
1345
1346 struct ev_timer t1;
1347 ev_timer_init (&t1, ocb, 5, 10);
1348 ev_timer_start (&t1);
1349
1350 struct ev_signal sig;
1351 ev_signal_init (&sig, scb, SIGQUIT);
1352 ev_signal_start (&sig);
1353
1354 struct ev_check cw;
1355 ev_check_init (&cw, gcb);
1356 ev_check_start (&cw);
1357
1358 struct ev_idle iw;
1359 ev_idle_init (&iw, gcb);
1360 ev_idle_start (&iw);
1361
1362 ev_loop (0);
1363
1364 return 0;
1365} 2318}
1366 2319
2320#ifdef __cplusplus
2321}
1367#endif 2322#endif
1368 2323
1369
1370
1371

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