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Comparing libev/ev.c (file contents):
Revision 1.81 by root, Fri Nov 9 17:07:59 2007 UTC vs.
Revision 1.186 by root, Sat Dec 15 23:14:38 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
33 42
34# if HAVE_CLOCK_GETTIME 43# if HAVE_CLOCK_GETTIME
44# ifndef EV_USE_MONOTONIC
35# define EV_USE_MONOTONIC 1 45# define EV_USE_MONOTONIC 1
46# endif
47# ifndef EV_USE_REALTIME
36# define EV_USE_REALTIME 1 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
37# endif 57# endif
38 58
59# ifndef EV_USE_SELECT
39# if HAVE_SELECT && HAVE_SYS_SELECT_H 60# if HAVE_SELECT && HAVE_SYS_SELECT_H
40# define EV_USE_SELECT 1 61# define EV_USE_SELECT 1
62# else
63# define EV_USE_SELECT 0
64# endif
41# endif 65# endif
42 66
67# ifndef EV_USE_POLL
43# if HAVE_POLL && HAVE_POLL_H 68# if HAVE_POLL && HAVE_POLL_H
44# define EV_USE_POLL 1 69# define EV_USE_POLL 1
70# else
71# define EV_USE_POLL 0
72# endif
45# endif 73# endif
46 74
75# ifndef EV_USE_EPOLL
47# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 76# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48# define EV_USE_EPOLL 1 77# define EV_USE_EPOLL 1
78# else
79# define EV_USE_EPOLL 0
80# endif
49# endif 81# endif
50 82
83# ifndef EV_USE_KQUEUE
51# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 84# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52# define EV_USE_KQUEUE 1 85# define EV_USE_KQUEUE 1
86# else
87# define EV_USE_KQUEUE 0
88# endif
89# endif
90
91# ifndef EV_USE_PORT
92# if HAVE_PORT_H && HAVE_PORT_CREATE
93# define EV_USE_PORT 1
94# else
95# define EV_USE_PORT 0
96# endif
97# endif
98
99# ifndef EV_USE_INOTIFY
100# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
101# define EV_USE_INOTIFY 1
102# else
103# define EV_USE_INOTIFY 0
104# endif
53# endif 105# endif
54 106
55#endif 107#endif
56 108
57#include <math.h> 109#include <math.h>
… …
66#include <sys/types.h> 118#include <sys/types.h>
67#include <time.h> 119#include <time.h>
68 120
69#include <signal.h> 121#include <signal.h>
70 122
71#ifndef WIN32
72# include <unistd.h>
73# include <sys/time.h>
74# include <sys/wait.h>
75#endif
76/**/
77
78#ifndef EV_USE_MONOTONIC
79# define EV_USE_MONOTONIC 1
80#endif
81
82#ifndef EV_USE_SELECT
83# define EV_USE_SELECT 1
84#endif
85
86#ifndef EV_USE_POLL
87# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
88#endif
89
90#ifndef EV_USE_EPOLL
91# define EV_USE_EPOLL 0
92#endif
93
94#ifndef EV_USE_KQUEUE
95# define EV_USE_KQUEUE 0
96#endif
97
98#ifndef EV_USE_WIN32
99# ifdef WIN32
100# define EV_USE_WIN32 0 /* it does not exist, use select */
101# undef EV_USE_SELECT
102# define EV_USE_SELECT 1
103# else
104# define EV_USE_WIN32 0
105# endif
106#endif
107
108#ifndef EV_USE_REALTIME
109# define EV_USE_REALTIME 1
110#endif
111
112/**/
113
114#ifndef CLOCK_MONOTONIC
115# undef EV_USE_MONOTONIC
116# define EV_USE_MONOTONIC 0
117#endif
118
119#ifndef CLOCK_REALTIME
120# undef EV_USE_REALTIME
121# define EV_USE_REALTIME 0
122#endif
123
124/**/
125
126#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
128#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
130
131#ifdef EV_H 123#ifdef EV_H
132# include EV_H 124# include EV_H
133#else 125#else
134# include "ev.h" 126# include "ev.h"
135#endif 127#endif
136 128
129#ifndef _WIN32
130# include <sys/time.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
138# endif
139#endif
140
141/**/
142
143#ifndef EV_USE_MONOTONIC
144# define EV_USE_MONOTONIC 0
145#endif
146
147#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0
149#endif
150
151#ifndef EV_USE_SELECT
152# define EV_USE_SELECT 1
153#endif
154
155#ifndef EV_USE_POLL
156# ifdef _WIN32
157# define EV_USE_POLL 0
158# else
159# define EV_USE_POLL 1
160# endif
161#endif
162
163#ifndef EV_USE_EPOLL
164# define EV_USE_EPOLL 0
165#endif
166
167#ifndef EV_USE_KQUEUE
168# define EV_USE_KQUEUE 0
169#endif
170
171#ifndef EV_USE_PORT
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
193#endif
194
195/**/
196
197#ifndef CLOCK_MONOTONIC
198# undef EV_USE_MONOTONIC
199# define EV_USE_MONOTONIC 0
200#endif
201
202#ifndef CLOCK_REALTIME
203# undef EV_USE_REALTIME
204# define EV_USE_REALTIME 0
205#endif
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
220/**/
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
232#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
233#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
234/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
235
137#if __GNUC__ >= 3 236#if __GNUC__ >= 4
138# define expect(expr,value) __builtin_expect ((expr),(value)) 237# define expect(expr,value) __builtin_expect ((expr),(value))
139# define inline inline 238# define noinline __attribute__ ((noinline))
140#else 239#else
141# define expect(expr,value) (expr) 240# define expect(expr,value) (expr)
142# define inline static 241# define noinline
242# if __STDC_VERSION__ < 199901L
243# define inline
244# endif
143#endif 245#endif
144 246
145#define expect_false(expr) expect ((expr) != 0, 0) 247#define expect_false(expr) expect ((expr) != 0, 0)
146#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
147 256
148#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 257#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149#define ABSPRI(w) ((w)->priority - EV_MINPRI) 258#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
150 259
260#define EMPTY /* required for microsofts broken pseudo-c compiler */
261#define EMPTY2(a,b) /* used to suppress some warnings */
262
151typedef struct ev_watcher *W; 263typedef ev_watcher *W;
152typedef struct ev_watcher_list *WL; 264typedef ev_watcher_list *WL;
153typedef struct ev_watcher_time *WT; 265typedef ev_watcher_time *WT;
154 266
155static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 267static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156 268
269#ifdef _WIN32
157#include "ev_win32.c" 270# include "ev_win32.c"
271#endif
158 272
159/*****************************************************************************/ 273/*****************************************************************************/
160 274
161static void (*syserr_cb)(const char *msg); 275static void (*syserr_cb)(const char *msg);
162 276
277void
163void ev_set_syserr_cb (void (*cb)(const char *msg)) 278ev_set_syserr_cb (void (*cb)(const char *msg))
164{ 279{
165 syserr_cb = cb; 280 syserr_cb = cb;
166} 281}
167 282
168static void 283static void noinline
169syserr (const char *msg) 284syserr (const char *msg)
170{ 285{
171 if (!msg) 286 if (!msg)
172 msg = "(libev) system error"; 287 msg = "(libev) system error";
173 288
… …
180 } 295 }
181} 296}
182 297
183static void *(*alloc)(void *ptr, long size); 298static void *(*alloc)(void *ptr, long size);
184 299
300void
185void ev_set_allocator (void *(*cb)(void *ptr, long size)) 301ev_set_allocator (void *(*cb)(void *ptr, long size))
186{ 302{
187 alloc = cb; 303 alloc = cb;
188} 304}
189 305
190static void * 306inline_speed void *
191ev_realloc (void *ptr, long size) 307ev_realloc (void *ptr, long size)
192{ 308{
193 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 309 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
194 310
195 if (!ptr && size) 311 if (!ptr && size)
… …
209typedef struct 325typedef struct
210{ 326{
211 WL head; 327 WL head;
212 unsigned char events; 328 unsigned char events;
213 unsigned char reify; 329 unsigned char reify;
330#if EV_SELECT_IS_WINSOCKET
331 SOCKET handle;
332#endif
214} ANFD; 333} ANFD;
215 334
216typedef struct 335typedef struct
217{ 336{
218 W w; 337 W w;
219 int events; 338 int events;
220} ANPENDING; 339} ANPENDING;
221 340
341#if EV_USE_INOTIFY
342typedef struct
343{
344 WL head;
345} ANFS;
346#endif
347
222#if EV_MULTIPLICITY 348#if EV_MULTIPLICITY
223 349
224 struct ev_loop 350 struct ev_loop
225 { 351 {
352 ev_tstamp ev_rt_now;
353 #define ev_rt_now ((loop)->ev_rt_now)
226 #define VAR(name,decl) decl; 354 #define VAR(name,decl) decl;
227 #include "ev_vars.h" 355 #include "ev_vars.h"
228 #undef VAR 356 #undef VAR
229 }; 357 };
230 #include "ev_wrap.h" 358 #include "ev_wrap.h"
231 359
232 struct ev_loop default_loop_struct; 360 static struct ev_loop default_loop_struct;
233 static struct ev_loop *default_loop; 361 struct ev_loop *ev_default_loop_ptr;
234 362
235#else 363#else
236 364
365 ev_tstamp ev_rt_now;
237 #define VAR(name,decl) static decl; 366 #define VAR(name,decl) static decl;
238 #include "ev_vars.h" 367 #include "ev_vars.h"
239 #undef VAR 368 #undef VAR
240 369
241 static int default_loop; 370 static int ev_default_loop_ptr;
242 371
243#endif 372#endif
244 373
245/*****************************************************************************/ 374/*****************************************************************************/
246 375
247inline ev_tstamp 376ev_tstamp
248ev_time (void) 377ev_time (void)
249{ 378{
250#if EV_USE_REALTIME 379#if EV_USE_REALTIME
251 struct timespec ts; 380 struct timespec ts;
252 clock_gettime (CLOCK_REALTIME, &ts); 381 clock_gettime (CLOCK_REALTIME, &ts);
… …
256 gettimeofday (&tv, 0); 385 gettimeofday (&tv, 0);
257 return tv.tv_sec + tv.tv_usec * 1e-6; 386 return tv.tv_sec + tv.tv_usec * 1e-6;
258#endif 387#endif
259} 388}
260 389
261inline ev_tstamp 390ev_tstamp inline_size
262get_clock (void) 391get_clock (void)
263{ 392{
264#if EV_USE_MONOTONIC 393#if EV_USE_MONOTONIC
265 if (expect_true (have_monotonic)) 394 if (expect_true (have_monotonic))
266 { 395 {
… …
271#endif 400#endif
272 401
273 return ev_time (); 402 return ev_time ();
274} 403}
275 404
405#if EV_MULTIPLICITY
276ev_tstamp 406ev_tstamp
277ev_now (EV_P) 407ev_now (EV_P)
278{ 408{
279 return rt_now; 409 return ev_rt_now;
280} 410}
411#endif
281 412
282#define array_roundsize(type,n) ((n) | 4 & ~3) 413int inline_size
414array_nextsize (int elem, int cur, int cnt)
415{
416 int ncur = cur + 1;
417
418 do
419 ncur <<= 1;
420 while (cnt > ncur);
421
422 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
423 if (elem * ncur > 4096)
424 {
425 ncur *= elem;
426 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
427 ncur = ncur - sizeof (void *) * 4;
428 ncur /= elem;
429 }
430
431 return ncur;
432}
433
434static noinline void *
435array_realloc (int elem, void *base, int *cur, int cnt)
436{
437 *cur = array_nextsize (elem, *cur, cnt);
438 return ev_realloc (base, elem * *cur);
439}
283 440
284#define array_needsize(type,base,cur,cnt,init) \ 441#define array_needsize(type,base,cur,cnt,init) \
285 if (expect_false ((cnt) > cur)) \ 442 if (expect_false ((cnt) > (cur))) \
286 { \ 443 { \
287 int newcnt = cur; \ 444 int ocur_ = (cur); \
288 do \ 445 (base) = (type *)array_realloc \
289 { \ 446 (sizeof (type), (base), &(cur), (cnt)); \
290 newcnt = array_roundsize (type, newcnt << 1); \ 447 init ((base) + (ocur_), (cur) - ocur_); \
291 } \
292 while ((cnt) > newcnt); \
293 \
294 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
295 init (base + cur, newcnt - cur); \
296 cur = newcnt; \
297 } 448 }
298 449
450#if 0
299#define array_slim(type,stem) \ 451#define array_slim(type,stem) \
300 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 452 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
301 { \ 453 { \
302 stem ## max = array_roundsize (stem ## cnt >> 1); \ 454 stem ## max = array_roundsize (stem ## cnt >> 1); \
303 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 455 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
304 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 456 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
305 } 457 }
306 458#endif
307/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
308/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
309#define array_free_microshit(stem) \
310 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
311 459
312#define array_free(stem, idx) \ 460#define array_free(stem, idx) \
313 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 461 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
314 462
315/*****************************************************************************/ 463/*****************************************************************************/
316 464
317static void 465void noinline
466ev_feed_event (EV_P_ void *w, int revents)
467{
468 W w_ = (W)w;
469 int pri = ABSPRI (w_);
470
471 if (expect_false (w_->pending))
472 pendings [pri][w_->pending - 1].events |= revents;
473 else
474 {
475 w_->pending = ++pendingcnt [pri];
476 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
477 pendings [pri][w_->pending - 1].w = w_;
478 pendings [pri][w_->pending - 1].events = revents;
479 }
480}
481
482void inline_speed
483queue_events (EV_P_ W *events, int eventcnt, int type)
484{
485 int i;
486
487 for (i = 0; i < eventcnt; ++i)
488 ev_feed_event (EV_A_ events [i], type);
489}
490
491/*****************************************************************************/
492
493void inline_size
318anfds_init (ANFD *base, int count) 494anfds_init (ANFD *base, int count)
319{ 495{
320 while (count--) 496 while (count--)
321 { 497 {
322 base->head = 0; 498 base->head = 0;
… …
325 501
326 ++base; 502 ++base;
327 } 503 }
328} 504}
329 505
330void 506void inline_speed
331ev_feed_event (EV_P_ void *w, int revents)
332{
333 W w_ = (W)w;
334
335 if (w_->pending)
336 {
337 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
338 return;
339 }
340
341 w_->pending = ++pendingcnt [ABSPRI (w_)];
342 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
343 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
344 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
345}
346
347static void
348queue_events (EV_P_ W *events, int eventcnt, int type)
349{
350 int i;
351
352 for (i = 0; i < eventcnt; ++i)
353 ev_feed_event (EV_A_ events [i], type);
354}
355
356inline void
357fd_event (EV_P_ int fd, int revents) 507fd_event (EV_P_ int fd, int revents)
358{ 508{
359 ANFD *anfd = anfds + fd; 509 ANFD *anfd = anfds + fd;
360 struct ev_io *w; 510 ev_io *w;
361 511
362 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)
363 { 513 {
364 int ev = w->events & revents; 514 int ev = w->events & revents;
365 515
366 if (ev) 516 if (ev)
367 ev_feed_event (EV_A_ (W)w, ev); 517 ev_feed_event (EV_A_ (W)w, ev);
… …
369} 519}
370 520
371void 521void
372ev_feed_fd_event (EV_P_ int fd, int revents) 522ev_feed_fd_event (EV_P_ int fd, int revents)
373{ 523{
524 if (fd >= 0 && fd < anfdmax)
374 fd_event (EV_A_ fd, revents); 525 fd_event (EV_A_ fd, revents);
375} 526}
376 527
377/*****************************************************************************/ 528void inline_size
378
379static void
380fd_reify (EV_P) 529fd_reify (EV_P)
381{ 530{
382 int i; 531 int i;
383 532
384 for (i = 0; i < fdchangecnt; ++i) 533 for (i = 0; i < fdchangecnt; ++i)
385 { 534 {
386 int fd = fdchanges [i]; 535 int fd = fdchanges [i];
387 ANFD *anfd = anfds + fd; 536 ANFD *anfd = anfds + fd;
388 struct ev_io *w; 537 ev_io *w;
389 538
390 int events = 0; 539 unsigned char events = 0;
391 540
392 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)
393 events |= w->events; 542 events |= (unsigned char)w->events;
394 543
544#if EV_SELECT_IS_WINSOCKET
545 if (events)
546 {
547 unsigned long argp;
548 anfd->handle = _get_osfhandle (fd);
549 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
550 }
551#endif
552
553 {
554 unsigned char o_events = anfd->events;
555 unsigned char o_reify = anfd->reify;
556
395 anfd->reify = 0; 557 anfd->reify = 0;
396
397 method_modify (EV_A_ fd, anfd->events, events);
398 anfd->events = events; 558 anfd->events = events;
559
560 if (o_events != events || o_reify & EV_IOFDSET)
561 backend_modify (EV_A_ fd, o_events, events);
562 }
399 } 563 }
400 564
401 fdchangecnt = 0; 565 fdchangecnt = 0;
402} 566}
403 567
404static void 568void inline_size
405fd_change (EV_P_ int fd) 569fd_change (EV_P_ int fd, int flags)
406{ 570{
407 if (anfds [fd].reify) 571 unsigned char reify = anfds [fd].reify;
408 return;
409
410 anfds [fd].reify = 1; 572 anfds [fd].reify |= flags;
411 573
574 if (expect_true (!reify))
575 {
412 ++fdchangecnt; 576 ++fdchangecnt;
413 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 577 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
414 fdchanges [fdchangecnt - 1] = fd; 578 fdchanges [fdchangecnt - 1] = fd;
579 }
415} 580}
416 581
417static void 582void inline_speed
418fd_kill (EV_P_ int fd) 583fd_kill (EV_P_ int fd)
419{ 584{
420 struct ev_io *w; 585 ev_io *w;
421 586
422 while ((w = (struct ev_io *)anfds [fd].head)) 587 while ((w = (ev_io *)anfds [fd].head))
423 { 588 {
424 ev_io_stop (EV_A_ w); 589 ev_io_stop (EV_A_ w);
425 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 590 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
426 } 591 }
427} 592}
428 593
429static int 594int inline_size
430fd_valid (int fd) 595fd_valid (int fd)
431{ 596{
432#ifdef WIN32 597#ifdef _WIN32
433 return !!win32_get_osfhandle (fd); 598 return _get_osfhandle (fd) != -1;
434#else 599#else
435 return fcntl (fd, F_GETFD) != -1; 600 return fcntl (fd, F_GETFD) != -1;
436#endif 601#endif
437} 602}
438 603
439/* called on EBADF to verify fds */ 604/* called on EBADF to verify fds */
440static void 605static void noinline
441fd_ebadf (EV_P) 606fd_ebadf (EV_P)
442{ 607{
443 int fd; 608 int fd;
444 609
445 for (fd = 0; fd < anfdmax; ++fd) 610 for (fd = 0; fd < anfdmax; ++fd)
… …
447 if (!fd_valid (fd) == -1 && errno == EBADF) 612 if (!fd_valid (fd) == -1 && errno == EBADF)
448 fd_kill (EV_A_ fd); 613 fd_kill (EV_A_ fd);
449} 614}
450 615
451/* 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 */
452static void 617static void noinline
453fd_enomem (EV_P) 618fd_enomem (EV_P)
454{ 619{
455 int fd; 620 int fd;
456 621
457 for (fd = anfdmax; fd--; ) 622 for (fd = anfdmax; fd--; )
… …
460 fd_kill (EV_A_ fd); 625 fd_kill (EV_A_ fd);
461 return; 626 return;
462 } 627 }
463} 628}
464 629
465/* usually called after fork if method needs to re-arm all fds from scratch */ 630/* usually called after fork if backend needs to re-arm all fds from scratch */
466static void 631static void noinline
467fd_rearm_all (EV_P) 632fd_rearm_all (EV_P)
468{ 633{
469 int fd; 634 int fd;
470 635
471 /* this should be highly optimised to not do anything but set a flag */
472 for (fd = 0; fd < anfdmax; ++fd) 636 for (fd = 0; fd < anfdmax; ++fd)
473 if (anfds [fd].events) 637 if (anfds [fd].events)
474 { 638 {
475 anfds [fd].events = 0; 639 anfds [fd].events = 0;
476 fd_change (EV_A_ fd); 640 fd_change (EV_A_ fd, EV_IOFDSET | 1);
477 } 641 }
478} 642}
479 643
480/*****************************************************************************/ 644/*****************************************************************************/
481 645
482static void 646void inline_speed
483upheap (WT *heap, int k) 647upheap (WT *heap, int k)
484{ 648{
485 WT w = heap [k]; 649 WT w = heap [k];
486 650
487 while (k && heap [k >> 1]->at > w->at) 651 while (k)
488 { 652 {
653 int p = (k - 1) >> 1;
654
655 if (heap [p]->at <= w->at)
656 break;
657
489 heap [k] = heap [k >> 1]; 658 heap [k] = heap [p];
490 ((W)heap [k])->active = k + 1; 659 ((W)heap [k])->active = k + 1;
491 k >>= 1; 660 k = p;
492 } 661 }
493 662
494 heap [k] = w; 663 heap [k] = w;
495 ((W)heap [k])->active = k + 1; 664 ((W)heap [k])->active = k + 1;
496
497} 665}
498 666
499static void 667void inline_speed
500downheap (WT *heap, int N, int k) 668downheap (WT *heap, int N, int k)
501{ 669{
502 WT w = heap [k]; 670 WT w = heap [k];
503 671
504 while (k < (N >> 1)) 672 for (;;)
505 { 673 {
506 int j = k << 1; 674 int c = (k << 1) + 1;
507 675
508 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 676 if (c >= N)
509 ++j;
510
511 if (w->at <= heap [j]->at)
512 break; 677 break;
513 678
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
514 heap [k] = heap [j]; 685 heap [k] = heap [c];
515 ((W)heap [k])->active = k + 1; 686 ((W)heap [k])->active = k + 1;
687
516 k = j; 688 k = c;
517 } 689 }
518 690
519 heap [k] = w; 691 heap [k] = w;
520 ((W)heap [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);
521} 700}
522 701
523/*****************************************************************************/ 702/*****************************************************************************/
524 703
525typedef struct 704typedef struct
… …
531static ANSIG *signals; 710static ANSIG *signals;
532static int signalmax; 711static int signalmax;
533 712
534static int sigpipe [2]; 713static int sigpipe [2];
535static sig_atomic_t volatile gotsig; 714static sig_atomic_t volatile gotsig;
536static struct ev_io sigev; 715static ev_io sigev;
537 716
538static void 717void inline_size
539signals_init (ANSIG *base, int count) 718signals_init (ANSIG *base, int count)
540{ 719{
541 while (count--) 720 while (count--)
542 { 721 {
543 base->head = 0; 722 base->head = 0;
… …
548} 727}
549 728
550static void 729static void
551sighandler (int signum) 730sighandler (int signum)
552{ 731{
553#if WIN32 732#if _WIN32
554 signal (signum, sighandler); 733 signal (signum, sighandler);
555#endif 734#endif
556 735
557 signals [signum - 1].gotsig = 1; 736 signals [signum - 1].gotsig = 1;
558 737
559 if (!gotsig) 738 if (!gotsig)
560 { 739 {
561 int old_errno = errno; 740 int old_errno = errno;
562 gotsig = 1; 741 gotsig = 1;
563#ifdef WIN32
564 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
565#else
566 write (sigpipe [1], &signum, 1); 742 write (sigpipe [1], &signum, 1);
567#endif
568 errno = old_errno; 743 errno = old_errno;
569 } 744 }
570} 745}
571 746
572void 747void noinline
573ev_feed_signal_event (EV_P_ int signum) 748ev_feed_signal_event (EV_P_ int signum)
574{ 749{
575 WL w; 750 WL w;
576 751
577#if EV_MULTIPLICITY 752#if EV_MULTIPLICITY
578 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 753 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
579#endif 754#endif
580 755
581 --signum; 756 --signum;
582 757
583 if (signum < 0 || signum >= signalmax) 758 if (signum < 0 || signum >= signalmax)
… …
588 for (w = signals [signum].head; w; w = w->next) 763 for (w = signals [signum].head; w; w = w->next)
589 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 764 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
590} 765}
591 766
592static void 767static void
593sigcb (EV_P_ struct ev_io *iow, int revents) 768sigcb (EV_P_ ev_io *iow, int revents)
594{ 769{
595 int signum; 770 int signum;
596 771
597#ifdef WIN32
598 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
599#else
600 read (sigpipe [0], &revents, 1); 772 read (sigpipe [0], &revents, 1);
601#endif
602 gotsig = 0; 773 gotsig = 0;
603 774
604 for (signum = signalmax; signum--; ) 775 for (signum = signalmax; signum--; )
605 if (signals [signum].gotsig) 776 if (signals [signum].gotsig)
606 ev_feed_signal_event (EV_A_ signum + 1); 777 ev_feed_signal_event (EV_A_ signum + 1);
607} 778}
608 779
609static void 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
610siginit (EV_P) 793siginit (EV_P)
611{ 794{
612#ifndef WIN32 795 fd_intern (sigpipe [0]);
613 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 796 fd_intern (sigpipe [1]);
614 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
615
616 /* rather than sort out wether we really need nb, set it */
617 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
618 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
619#endif
620 797
621 ev_io_set (&sigev, sigpipe [0], EV_READ); 798 ev_io_set (&sigev, sigpipe [0], EV_READ);
622 ev_io_start (EV_A_ &sigev); 799 ev_io_start (EV_A_ &sigev);
623 ev_unref (EV_A); /* child watcher should not keep loop alive */ 800 ev_unref (EV_A); /* child watcher should not keep loop alive */
624} 801}
625 802
626/*****************************************************************************/ 803/*****************************************************************************/
627 804
628static struct ev_child *childs [PID_HASHSIZE]; 805static WL childs [EV_PID_HASHSIZE];
629 806
630#ifndef WIN32 807#ifndef _WIN32
631 808
632static struct ev_signal childev; 809static ev_signal childev;
810
811void inline_speed
812child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
813{
814 ev_child *w;
815
816 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
817 if (w->pid == pid || !w->pid)
818 {
819 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
820 w->rpid = pid;
821 w->rstatus = status;
822 ev_feed_event (EV_A_ (W)w, EV_CHILD);
823 }
824}
633 825
634#ifndef WCONTINUED 826#ifndef WCONTINUED
635# define WCONTINUED 0 827# define WCONTINUED 0
636#endif 828#endif
637 829
638static void 830static void
639child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
640{
641 struct ev_child *w;
642
643 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
644 if (w->pid == pid || !w->pid)
645 {
646 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
647 w->rpid = pid;
648 w->rstatus = status;
649 ev_feed_event (EV_A_ (W)w, EV_CHILD);
650 }
651}
652
653static void
654childcb (EV_P_ struct ev_signal *sw, int revents) 831childcb (EV_P_ ev_signal *sw, int revents)
655{ 832{
656 int pid, status; 833 int pid, status;
657 834
835 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
658 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 836 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
659 { 837 if (!WCONTINUED
838 || errno != EINVAL
839 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
840 return;
841
660 /* 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 */
661 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 844 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
662 845
663 child_reap (EV_A_ sw, pid, pid, status); 846 child_reap (EV_A_ sw, pid, pid, status);
847 if (EV_PID_HASHSIZE > 1)
664 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 */
665 }
666} 849}
667 850
668#endif 851#endif
669 852
670/*****************************************************************************/ 853/*****************************************************************************/
671 854
855#if EV_USE_PORT
856# include "ev_port.c"
857#endif
672#if EV_USE_KQUEUE 858#if EV_USE_KQUEUE
673# include "ev_kqueue.c" 859# include "ev_kqueue.c"
674#endif 860#endif
675#if EV_USE_EPOLL 861#if EV_USE_EPOLL
676# include "ev_epoll.c" 862# include "ev_epoll.c"
… …
693{ 879{
694 return EV_VERSION_MINOR; 880 return EV_VERSION_MINOR;
695} 881}
696 882
697/* 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 */
698static int 884int inline_size
699enable_secure (void) 885enable_secure (void)
700{ 886{
701#ifdef WIN32 887#ifdef _WIN32
702 return 0; 888 return 0;
703#else 889#else
704 return getuid () != geteuid () 890 return getuid () != geteuid ()
705 || getgid () != getegid (); 891 || getgid () != getegid ();
706#endif 892#endif
707} 893}
708 894
709int 895unsigned int
710ev_method (EV_P) 896ev_supported_backends (void)
711{ 897{
712 return method; 898 unsigned int flags = 0;
713}
714 899
715static void 900 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
716loop_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)
717{ 911{
718 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)
719 { 951 {
720#if EV_USE_MONOTONIC 952#if EV_USE_MONOTONIC
721 { 953 {
722 struct timespec ts; 954 struct timespec ts;
723 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 955 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
724 have_monotonic = 1; 956 have_monotonic = 1;
725 } 957 }
726#endif 958#endif
727 959
728 rt_now = ev_time (); 960 ev_rt_now = ev_time ();
729 mn_now = get_clock (); 961 mn_now = get_clock ();
730 now_floor = mn_now; 962 now_floor = mn_now;
731 rtmn_diff = rt_now - mn_now; 963 rtmn_diff = ev_rt_now - mn_now;
732 964
733 if (methods == EVMETHOD_AUTO) 965 /* pid check not overridable via env */
734 if (!enable_secure () && getenv ("LIBEV_METHODS")) 966#ifndef _WIN32
967 if (flags & EVFLAG_FORKCHECK)
968 curpid = getpid ();
969#endif
970
971 if (!(flags & EVFLAG_NOENV)
972 && !enable_secure ()
973 && getenv ("LIBEV_FLAGS"))
735 methods = atoi (getenv ("LIBEV_METHODS")); 974 flags = atoi (getenv ("LIBEV_FLAGS"));
736 else
737 methods = EVMETHOD_ANY;
738 975
739 method = 0; 976 if (!(flags & 0x0000ffffUL))
977 flags |= ev_recommended_backends ();
978
979 backend = 0;
980 backend_fd = -1;
740#if EV_USE_WIN32 981#if EV_USE_INOTIFY
741 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); 982 fs_fd = -2;
983#endif
984
985#if EV_USE_PORT
986 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
742#endif 987#endif
743#if EV_USE_KQUEUE 988#if EV_USE_KQUEUE
744 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 989 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
745#endif 990#endif
746#if EV_USE_EPOLL 991#if EV_USE_EPOLL
747 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 992 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
748#endif 993#endif
749#if EV_USE_POLL 994#if EV_USE_POLL
750 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 995 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
751#endif 996#endif
752#if EV_USE_SELECT 997#if EV_USE_SELECT
753 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 998 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
754#endif 999#endif
755 1000
756 ev_watcher_init (&sigev, sigcb); 1001 ev_init (&sigev, sigcb);
757 ev_set_priority (&sigev, EV_MAXPRI); 1002 ev_set_priority (&sigev, EV_MAXPRI);
758 } 1003 }
759} 1004}
760 1005
761void 1006static void noinline
762loop_destroy (EV_P) 1007loop_destroy (EV_P)
763{ 1008{
764 int i; 1009 int i;
765 1010
766#if EV_USE_WIN32 1011#if EV_USE_INOTIFY
767 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); 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);
768#endif 1021#endif
769#if EV_USE_KQUEUE 1022#if EV_USE_KQUEUE
770 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1023 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
771#endif 1024#endif
772#if EV_USE_EPOLL 1025#if EV_USE_EPOLL
773 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1026 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
774#endif 1027#endif
775#if EV_USE_POLL 1028#if EV_USE_POLL
776 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1029 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
777#endif 1030#endif
778#if EV_USE_SELECT 1031#if EV_USE_SELECT
779 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1032 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
780#endif 1033#endif
781 1034
782 for (i = NUMPRI; i--; ) 1035 for (i = NUMPRI; i--; )
1036 {
783 array_free (pending, [i]); 1037 array_free (pending, [i]);
1038#if EV_IDLE_ENABLE
1039 array_free (idle, [i]);
1040#endif
1041 }
1042
1043 ev_free (anfds); anfdmax = 0;
784 1044
785 /* have to use the microsoft-never-gets-it-right macro */ 1045 /* have to use the microsoft-never-gets-it-right macro */
786 array_free_microshit (fdchange); 1046 array_free (fdchange, EMPTY);
787 array_free_microshit (timer); 1047 array_free (timer, EMPTY);
788 array_free_microshit (periodic); 1048#if EV_PERIODIC_ENABLE
789 array_free_microshit (idle); 1049 array_free (periodic, EMPTY);
790 array_free_microshit (prepare); 1050#endif
791 array_free_microshit (check); 1051 array_free (prepare, EMPTY);
1052 array_free (check, EMPTY);
1053 array_free (fork, EMPTY);
792 1054
793 method = 0; 1055 backend = 0;
794} 1056}
795 1057
796static void 1058void inline_size infy_fork (EV_P);
1059
1060void inline_size
797loop_fork (EV_P) 1061loop_fork (EV_P)
798{ 1062{
1063#if EV_USE_PORT
1064 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1065#endif
1066#if EV_USE_KQUEUE
1067 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1068#endif
799#if EV_USE_EPOLL 1069#if EV_USE_EPOLL
800 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1070 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
801#endif 1071#endif
802#if EV_USE_KQUEUE 1072#if EV_USE_INOTIFY
803 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1073 infy_fork (EV_A);
804#endif 1074#endif
805 1075
806 if (ev_is_active (&sigev)) 1076 if (ev_is_active (&sigev))
807 { 1077 {
808 /* default loop */ 1078 /* default loop */
… …
821 postfork = 0; 1091 postfork = 0;
822} 1092}
823 1093
824#if EV_MULTIPLICITY 1094#if EV_MULTIPLICITY
825struct ev_loop * 1095struct ev_loop *
826ev_loop_new (int methods) 1096ev_loop_new (unsigned int flags)
827{ 1097{
828 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1098 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
829 1099
830 memset (loop, 0, sizeof (struct ev_loop)); 1100 memset (loop, 0, sizeof (struct ev_loop));
831 1101
832 loop_init (EV_A_ methods); 1102 loop_init (EV_A_ flags);
833 1103
834 if (ev_method (EV_A)) 1104 if (ev_backend (EV_A))
835 return loop; 1105 return loop;
836 1106
837 return 0; 1107 return 0;
838} 1108}
839 1109
… …
852 1122
853#endif 1123#endif
854 1124
855#if EV_MULTIPLICITY 1125#if EV_MULTIPLICITY
856struct ev_loop * 1126struct ev_loop *
1127ev_default_loop_init (unsigned int flags)
857#else 1128#else
858int 1129int
1130ev_default_loop (unsigned int flags)
859#endif 1131#endif
860ev_default_loop (int methods)
861{ 1132{
862 if (sigpipe [0] == sigpipe [1]) 1133 if (sigpipe [0] == sigpipe [1])
863 if (pipe (sigpipe)) 1134 if (pipe (sigpipe))
864 return 0; 1135 return 0;
865 1136
866 if (!default_loop) 1137 if (!ev_default_loop_ptr)
867 { 1138 {
868#if EV_MULTIPLICITY 1139#if EV_MULTIPLICITY
869 struct ev_loop *loop = default_loop = &default_loop_struct; 1140 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
870#else 1141#else
871 default_loop = 1; 1142 ev_default_loop_ptr = 1;
872#endif 1143#endif
873 1144
874 loop_init (EV_A_ methods); 1145 loop_init (EV_A_ flags);
875 1146
876 if (ev_method (EV_A)) 1147 if (ev_backend (EV_A))
877 { 1148 {
878 siginit (EV_A); 1149 siginit (EV_A);
879 1150
880#ifndef WIN32 1151#ifndef _WIN32
881 ev_signal_init (&childev, childcb, SIGCHLD); 1152 ev_signal_init (&childev, childcb, SIGCHLD);
882 ev_set_priority (&childev, EV_MAXPRI); 1153 ev_set_priority (&childev, EV_MAXPRI);
883 ev_signal_start (EV_A_ &childev); 1154 ev_signal_start (EV_A_ &childev);
884 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1155 ev_unref (EV_A); /* child watcher should not keep loop alive */
885#endif 1156#endif
886 } 1157 }
887 else 1158 else
888 default_loop = 0; 1159 ev_default_loop_ptr = 0;
889 } 1160 }
890 1161
891 return default_loop; 1162 return ev_default_loop_ptr;
892} 1163}
893 1164
894void 1165void
895ev_default_destroy (void) 1166ev_default_destroy (void)
896{ 1167{
897#if EV_MULTIPLICITY 1168#if EV_MULTIPLICITY
898 struct ev_loop *loop = default_loop; 1169 struct ev_loop *loop = ev_default_loop_ptr;
899#endif 1170#endif
900 1171
901#ifndef WIN32 1172#ifndef _WIN32
902 ev_ref (EV_A); /* child watcher */ 1173 ev_ref (EV_A); /* child watcher */
903 ev_signal_stop (EV_A_ &childev); 1174 ev_signal_stop (EV_A_ &childev);
904#endif 1175#endif
905 1176
906 ev_ref (EV_A); /* signal watcher */ 1177 ev_ref (EV_A); /* signal watcher */
… …
914 1185
915void 1186void
916ev_default_fork (void) 1187ev_default_fork (void)
917{ 1188{
918#if EV_MULTIPLICITY 1189#if EV_MULTIPLICITY
919 struct ev_loop *loop = default_loop; 1190 struct ev_loop *loop = ev_default_loop_ptr;
920#endif 1191#endif
921 1192
922 if (method) 1193 if (backend)
923 postfork = 1; 1194 postfork = 1;
924} 1195}
925 1196
926/*****************************************************************************/ 1197/*****************************************************************************/
927 1198
928static int 1199void
929any_pending (EV_P) 1200ev_invoke (EV_P_ void *w, int revents)
930{ 1201{
931 int pri; 1202 EV_CB_INVOKE ((W)w, revents);
932
933 for (pri = NUMPRI; pri--; )
934 if (pendingcnt [pri])
935 return 1;
936
937 return 0;
938} 1203}
939 1204
940static void 1205void inline_speed
941call_pending (EV_P) 1206call_pending (EV_P)
942{ 1207{
943 int pri; 1208 int pri;
944 1209
945 for (pri = NUMPRI; pri--; ) 1210 for (pri = NUMPRI; pri--; )
946 while (pendingcnt [pri]) 1211 while (pendingcnt [pri])
947 { 1212 {
948 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1213 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
949 1214
950 if (p->w) 1215 if (expect_true (p->w))
951 { 1216 {
1217 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1218
952 p->w->pending = 0; 1219 p->w->pending = 0;
953 p->w->cb (EV_A_ p->w, p->events); 1220 EV_CB_INVOKE (p->w, p->events);
954 } 1221 }
955 } 1222 }
956} 1223}
957 1224
958static void 1225void inline_size
959timers_reify (EV_P) 1226timers_reify (EV_P)
960{ 1227{
961 while (timercnt && ((WT)timers [0])->at <= mn_now) 1228 while (timercnt && ((WT)timers [0])->at <= mn_now)
962 { 1229 {
963 struct ev_timer *w = timers [0]; 1230 ev_timer *w = (ev_timer *)timers [0];
964 1231
965 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1232 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
966 1233
967 /* first reschedule or stop timer */ 1234 /* first reschedule or stop timer */
968 if (w->repeat) 1235 if (w->repeat)
969 { 1236 {
970 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1237 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1238
971 ((WT)w)->at = mn_now + w->repeat; 1239 ((WT)w)->at += w->repeat;
1240 if (((WT)w)->at < mn_now)
1241 ((WT)w)->at = mn_now;
1242
972 downheap ((WT *)timers, timercnt, 0); 1243 downheap (timers, timercnt, 0);
973 } 1244 }
974 else 1245 else
975 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1246 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
976 1247
977 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1248 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
978 } 1249 }
979} 1250}
980 1251
981static void 1252#if EV_PERIODIC_ENABLE
1253void inline_size
982periodics_reify (EV_P) 1254periodics_reify (EV_P)
983{ 1255{
984 while (periodiccnt && ((WT)periodics [0])->at <= rt_now) 1256 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
985 { 1257 {
986 struct ev_periodic *w = periodics [0]; 1258 ev_periodic *w = (ev_periodic *)periodics [0];
987 1259
988 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1260 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
989 1261
990 /* first reschedule or stop timer */ 1262 /* first reschedule or stop timer */
991 if (w->reschedule_cb) 1263 if (w->reschedule_cb)
992 { 1264 {
993 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); 1265 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON);
994
995 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); 1266 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
996 downheap ((WT *)periodics, periodiccnt, 0); 1267 downheap (periodics, periodiccnt, 0);
997 } 1268 }
998 else if (w->interval) 1269 else if (w->interval)
999 { 1270 {
1000 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1271 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1272 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1001 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); 1273 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1002 downheap ((WT *)periodics, periodiccnt, 0); 1274 downheap (periodics, periodiccnt, 0);
1003 } 1275 }
1004 else 1276 else
1005 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1277 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1006 1278
1007 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1279 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1008 } 1280 }
1009} 1281}
1010 1282
1011static void 1283static void noinline
1012periodics_reschedule (EV_P) 1284periodics_reschedule (EV_P)
1013{ 1285{
1014 int i; 1286 int i;
1015 1287
1016 /* adjust periodics after time jump */ 1288 /* adjust periodics after time jump */
1017 for (i = 0; i < periodiccnt; ++i) 1289 for (i = 0; i < periodiccnt; ++i)
1018 { 1290 {
1019 struct ev_periodic *w = periodics [i]; 1291 ev_periodic *w = (ev_periodic *)periodics [i];
1020 1292
1021 if (w->reschedule_cb) 1293 if (w->reschedule_cb)
1022 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1294 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1023 else if (w->interval) 1295 else if (w->interval)
1024 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1296 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1025 } 1297 }
1026 1298
1027 /* now rebuild the heap */ 1299 /* now rebuild the heap */
1028 for (i = periodiccnt >> 1; i--; ) 1300 for (i = periodiccnt >> 1; i--; )
1029 downheap ((WT *)periodics, periodiccnt, i); 1301 downheap (periodics, periodiccnt, i);
1030} 1302}
1303#endif
1031 1304
1032inline int 1305#if EV_IDLE_ENABLE
1033time_update_monotonic (EV_P) 1306void inline_size
1307idle_reify (EV_P)
1034{ 1308{
1035 mn_now = get_clock (); 1309 if (expect_false (idleall))
1036
1037 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1038 {
1039 rt_now = rtmn_diff + mn_now;
1040 return 0;
1041 } 1310 {
1042 else 1311 int pri;
1312
1313 for (pri = NUMPRI; pri--; )
1314 {
1315 if (pendingcnt [pri])
1316 break;
1317
1318 if (idlecnt [pri])
1319 {
1320 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1321 break;
1322 }
1323 }
1043 { 1324 }
1044 now_floor = mn_now;
1045 rt_now = ev_time ();
1046 return 1;
1047 }
1048} 1325}
1326#endif
1049 1327
1050static void 1328void inline_speed
1051time_update (EV_P) 1329time_update (EV_P_ ev_tstamp max_block)
1052{ 1330{
1053 int i; 1331 int i;
1054 1332
1055#if EV_USE_MONOTONIC 1333#if EV_USE_MONOTONIC
1056 if (expect_true (have_monotonic)) 1334 if (expect_true (have_monotonic))
1057 { 1335 {
1058 if (time_update_monotonic (EV_A)) 1336 ev_tstamp odiff = rtmn_diff;
1337
1338 mn_now = get_clock ();
1339
1340 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1341 /* interpolate in the meantime */
1342 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1059 { 1343 {
1060 ev_tstamp odiff = rtmn_diff; 1344 ev_rt_now = rtmn_diff + mn_now;
1345 return;
1346 }
1061 1347
1348 now_floor = mn_now;
1349 ev_rt_now = ev_time ();
1350
1062 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1351 /* loop a few times, before making important decisions.
1352 * on the choice of "4": one iteration isn't enough,
1353 * in case we get preempted during the calls to
1354 * ev_time and get_clock. a second call is almost guaranteed
1355 * to succeed in that case, though. and looping a few more times
1356 * doesn't hurt either as we only do this on time-jumps or
1357 * in the unlikely event of having been preempted here.
1358 */
1359 for (i = 4; --i; )
1063 { 1360 {
1064 rtmn_diff = rt_now - mn_now; 1361 rtmn_diff = ev_rt_now - mn_now;
1065 1362
1066 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1363 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1067 return; /* all is well */ 1364 return; /* all is well */
1068 1365
1069 rt_now = ev_time (); 1366 ev_rt_now = ev_time ();
1070 mn_now = get_clock (); 1367 mn_now = get_clock ();
1071 now_floor = mn_now; 1368 now_floor = mn_now;
1072 } 1369 }
1073 1370
1371# if EV_PERIODIC_ENABLE
1372 periodics_reschedule (EV_A);
1373# endif
1374 /* no timer adjustment, as the monotonic clock doesn't jump */
1375 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1376 }
1377 else
1378#endif
1379 {
1380 ev_rt_now = ev_time ();
1381
1382 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1383 {
1384#if EV_PERIODIC_ENABLE
1074 periodics_reschedule (EV_A); 1385 periodics_reschedule (EV_A);
1075 /* no timer adjustment, as the monotonic clock doesn't jump */ 1386#endif
1076 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1387 /* adjust timers. this is easy, as the offset is the same for all of them */
1388 for (i = 0; i < timercnt; ++i)
1389 ((WT)timers [i])->at += ev_rt_now - mn_now;
1077 } 1390 }
1078 }
1079 else
1080#endif
1081 {
1082 rt_now = ev_time ();
1083 1391
1084 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1085 {
1086 periodics_reschedule (EV_A);
1087
1088 /* adjust timers. this is easy, as the offset is the same for all */
1089 for (i = 0; i < timercnt; ++i)
1090 ((WT)timers [i])->at += rt_now - mn_now;
1091 }
1092
1093 mn_now = rt_now; 1392 mn_now = ev_rt_now;
1094 } 1393 }
1095} 1394}
1096 1395
1097void 1396void
1098ev_ref (EV_P) 1397ev_ref (EV_P)
… …
1109static int loop_done; 1408static int loop_done;
1110 1409
1111void 1410void
1112ev_loop (EV_P_ int flags) 1411ev_loop (EV_P_ int flags)
1113{ 1412{
1114 double block;
1115 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1413 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1414 ? EVUNLOOP_ONE
1415 : EVUNLOOP_CANCEL;
1416
1417 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1116 1418
1117 do 1419 do
1118 { 1420 {
1421#ifndef _WIN32
1422 if (expect_false (curpid)) /* penalise the forking check even more */
1423 if (expect_false (getpid () != curpid))
1424 {
1425 curpid = getpid ();
1426 postfork = 1;
1427 }
1428#endif
1429
1430#if EV_FORK_ENABLE
1431 /* we might have forked, so queue fork handlers */
1432 if (expect_false (postfork))
1433 if (forkcnt)
1434 {
1435 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1436 call_pending (EV_A);
1437 }
1438#endif
1439
1119 /* queue check watchers (and execute them) */ 1440 /* queue prepare watchers (and execute them) */
1120 if (expect_false (preparecnt)) 1441 if (expect_false (preparecnt))
1121 { 1442 {
1122 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1443 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1123 call_pending (EV_A); 1444 call_pending (EV_A);
1124 } 1445 }
1125 1446
1447 if (expect_false (!activecnt))
1448 break;
1449
1126 /* we might have forked, so reify kernel state if necessary */ 1450 /* we might have forked, so reify kernel state if necessary */
1127 if (expect_false (postfork)) 1451 if (expect_false (postfork))
1128 loop_fork (EV_A); 1452 loop_fork (EV_A);
1129 1453
1130 /* update fd-related kernel structures */ 1454 /* update fd-related kernel structures */
1131 fd_reify (EV_A); 1455 fd_reify (EV_A);
1132 1456
1133 /* calculate blocking time */ 1457 /* calculate blocking time */
1458 {
1459 ev_tstamp block;
1134 1460
1135 /* we only need this for !monotonic clock or timers, but as we basically 1461 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1136 always have timers, we just calculate it always */ 1462 block = 0.; /* do not block at all */
1137#if EV_USE_MONOTONIC
1138 if (expect_true (have_monotonic))
1139 time_update_monotonic (EV_A);
1140 else 1463 else
1141#endif
1142 { 1464 {
1143 rt_now = ev_time (); 1465 /* update time to cancel out callback processing overhead */
1144 mn_now = rt_now; 1466 time_update (EV_A_ 1e100);
1145 }
1146 1467
1147 if (flags & EVLOOP_NONBLOCK || idlecnt)
1148 block = 0.;
1149 else
1150 {
1151 block = MAX_BLOCKTIME; 1468 block = MAX_BLOCKTIME;
1152 1469
1153 if (timercnt) 1470 if (timercnt)
1154 { 1471 {
1155 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1472 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1156 if (block > to) block = to; 1473 if (block > to) block = to;
1157 } 1474 }
1158 1475
1476#if EV_PERIODIC_ENABLE
1159 if (periodiccnt) 1477 if (periodiccnt)
1160 { 1478 {
1161 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; 1479 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1162 if (block > to) block = to; 1480 if (block > to) block = to;
1163 } 1481 }
1482#endif
1164 1483
1165 if (block < 0.) block = 0.; 1484 if (expect_false (block < 0.)) block = 0.;
1166 } 1485 }
1167 1486
1487 ++loop_count;
1168 method_poll (EV_A_ block); 1488 backend_poll (EV_A_ block);
1169 1489
1170 /* update rt_now, do magic */ 1490 /* update ev_rt_now, do magic */
1171 time_update (EV_A); 1491 time_update (EV_A_ block);
1492 }
1172 1493
1173 /* queue pending timers and reschedule them */ 1494 /* queue pending timers and reschedule them */
1174 timers_reify (EV_A); /* relative timers called last */ 1495 timers_reify (EV_A); /* relative timers called last */
1496#if EV_PERIODIC_ENABLE
1175 periodics_reify (EV_A); /* absolute timers called first */ 1497 periodics_reify (EV_A); /* absolute timers called first */
1498#endif
1176 1499
1500#if EV_IDLE_ENABLE
1177 /* queue idle watchers unless io or timers are pending */ 1501 /* queue idle watchers unless other events are pending */
1178 if (idlecnt && !any_pending (EV_A)) 1502 idle_reify (EV_A);
1179 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1503#endif
1180 1504
1181 /* queue check watchers, to be executed first */ 1505 /* queue check watchers, to be executed first */
1182 if (checkcnt) 1506 if (expect_false (checkcnt))
1183 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1507 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1184 1508
1185 call_pending (EV_A); 1509 call_pending (EV_A);
1510
1186 } 1511 }
1187 while (activecnt && !loop_done); 1512 while (expect_true (activecnt && !loop_done));
1188 1513
1189 if (loop_done != 2) 1514 if (loop_done == EVUNLOOP_ONE)
1190 loop_done = 0; 1515 loop_done = EVUNLOOP_CANCEL;
1191} 1516}
1192 1517
1193void 1518void
1194ev_unloop (EV_P_ int how) 1519ev_unloop (EV_P_ int how)
1195{ 1520{
1196 loop_done = how; 1521 loop_done = how;
1197} 1522}
1198 1523
1199/*****************************************************************************/ 1524/*****************************************************************************/
1200 1525
1201inline void 1526void inline_size
1202wlist_add (WL *head, WL elem) 1527wlist_add (WL *head, WL elem)
1203{ 1528{
1204 elem->next = *head; 1529 elem->next = *head;
1205 *head = elem; 1530 *head = elem;
1206} 1531}
1207 1532
1208inline void 1533void inline_size
1209wlist_del (WL *head, WL elem) 1534wlist_del (WL *head, WL elem)
1210{ 1535{
1211 while (*head) 1536 while (*head)
1212 { 1537 {
1213 if (*head == elem) 1538 if (*head == elem)
… …
1218 1543
1219 head = &(*head)->next; 1544 head = &(*head)->next;
1220 } 1545 }
1221} 1546}
1222 1547
1223inline void 1548void inline_speed
1224ev_clear_pending (EV_P_ W w) 1549clear_pending (EV_P_ W w)
1225{ 1550{
1226 if (w->pending) 1551 if (w->pending)
1227 { 1552 {
1228 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1553 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1229 w->pending = 0; 1554 w->pending = 0;
1230 } 1555 }
1231} 1556}
1232 1557
1233inline void 1558int
1559ev_clear_pending (EV_P_ void *w)
1560{
1561 W w_ = (W)w;
1562 int pending = w_->pending;
1563
1564 if (expect_true (pending))
1565 {
1566 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1567 w_->pending = 0;
1568 p->w = 0;
1569 return p->events;
1570 }
1571 else
1572 return 0;
1573}
1574
1575void inline_size
1576pri_adjust (EV_P_ W w)
1577{
1578 int pri = w->priority;
1579 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1580 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1581 w->priority = pri;
1582}
1583
1584void inline_speed
1234ev_start (EV_P_ W w, int active) 1585ev_start (EV_P_ W w, int active)
1235{ 1586{
1236 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1587 pri_adjust (EV_A_ w);
1237 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1238
1239 w->active = active; 1588 w->active = active;
1240 ev_ref (EV_A); 1589 ev_ref (EV_A);
1241} 1590}
1242 1591
1243inline void 1592void inline_size
1244ev_stop (EV_P_ W w) 1593ev_stop (EV_P_ W w)
1245{ 1594{
1246 ev_unref (EV_A); 1595 ev_unref (EV_A);
1247 w->active = 0; 1596 w->active = 0;
1248} 1597}
1249 1598
1250/*****************************************************************************/ 1599/*****************************************************************************/
1251 1600
1252void 1601void noinline
1253ev_io_start (EV_P_ struct ev_io *w) 1602ev_io_start (EV_P_ ev_io *w)
1254{ 1603{
1255 int fd = w->fd; 1604 int fd = w->fd;
1256 1605
1257 if (ev_is_active (w)) 1606 if (expect_false (ev_is_active (w)))
1258 return; 1607 return;
1259 1608
1260 assert (("ev_io_start called with negative fd", fd >= 0)); 1609 assert (("ev_io_start called with negative fd", fd >= 0));
1261 1610
1262 ev_start (EV_A_ (W)w, 1); 1611 ev_start (EV_A_ (W)w, 1);
1263 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); 1612 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1264 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1613 wlist_add (&anfds[fd].head, (WL)w);
1265 1614
1266 fd_change (EV_A_ fd); 1615 fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1);
1616 w->events &= ~EV_IOFDSET;
1267} 1617}
1268 1618
1269void 1619void noinline
1270ev_io_stop (EV_P_ struct ev_io *w) 1620ev_io_stop (EV_P_ ev_io *w)
1271{ 1621{
1272 ev_clear_pending (EV_A_ (W)w); 1622 clear_pending (EV_A_ (W)w);
1273 if (!ev_is_active (w)) 1623 if (expect_false (!ev_is_active (w)))
1274 return; 1624 return;
1275 1625
1626 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1627
1276 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1628 wlist_del (&anfds[w->fd].head, (WL)w);
1277 ev_stop (EV_A_ (W)w); 1629 ev_stop (EV_A_ (W)w);
1278 1630
1279 fd_change (EV_A_ w->fd); 1631 fd_change (EV_A_ w->fd, 1);
1280} 1632}
1281 1633
1282void 1634void noinline
1283ev_timer_start (EV_P_ struct ev_timer *w) 1635ev_timer_start (EV_P_ ev_timer *w)
1284{ 1636{
1285 if (ev_is_active (w)) 1637 if (expect_false (ev_is_active (w)))
1286 return; 1638 return;
1287 1639
1288 ((WT)w)->at += mn_now; 1640 ((WT)w)->at += mn_now;
1289 1641
1290 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1642 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1291 1643
1292 ev_start (EV_A_ (W)w, ++timercnt); 1644 ev_start (EV_A_ (W)w, ++timercnt);
1293 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1645 array_needsize (WT, timers, timermax, timercnt, EMPTY2);
1294 timers [timercnt - 1] = w; 1646 timers [timercnt - 1] = (WT)w;
1295 upheap ((WT *)timers, timercnt - 1); 1647 upheap (timers, timercnt - 1);
1296 1648
1297 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1649 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1298} 1650}
1299 1651
1300void 1652void noinline
1301ev_timer_stop (EV_P_ struct ev_timer *w) 1653ev_timer_stop (EV_P_ ev_timer *w)
1302{ 1654{
1303 ev_clear_pending (EV_A_ (W)w); 1655 clear_pending (EV_A_ (W)w);
1304 if (!ev_is_active (w)) 1656 if (expect_false (!ev_is_active (w)))
1305 return; 1657 return;
1306 1658
1307 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1659 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w));
1308 1660
1309 if (((W)w)->active < timercnt--) 1661 {
1662 int active = ((W)w)->active;
1663
1664 if (expect_true (--active < --timercnt))
1310 { 1665 {
1311 timers [((W)w)->active - 1] = timers [timercnt]; 1666 timers [active] = timers [timercnt];
1312 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1667 adjustheap (timers, timercnt, active);
1313 } 1668 }
1669 }
1314 1670
1315 ((WT)w)->at = w->repeat; 1671 ((WT)w)->at -= mn_now;
1316 1672
1317 ev_stop (EV_A_ (W)w); 1673 ev_stop (EV_A_ (W)w);
1318} 1674}
1319 1675
1320void 1676void noinline
1321ev_timer_again (EV_P_ struct ev_timer *w) 1677ev_timer_again (EV_P_ ev_timer *w)
1322{ 1678{
1323 if (ev_is_active (w)) 1679 if (ev_is_active (w))
1324 { 1680 {
1325 if (w->repeat) 1681 if (w->repeat)
1326 { 1682 {
1327 ((WT)w)->at = mn_now + w->repeat; 1683 ((WT)w)->at = mn_now + w->repeat;
1328 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1684 adjustheap (timers, timercnt, ((W)w)->active - 1);
1329 } 1685 }
1330 else 1686 else
1331 ev_timer_stop (EV_A_ w); 1687 ev_timer_stop (EV_A_ w);
1332 } 1688 }
1333 else if (w->repeat) 1689 else if (w->repeat)
1690 {
1691 w->at = w->repeat;
1334 ev_timer_start (EV_A_ w); 1692 ev_timer_start (EV_A_ w);
1693 }
1335} 1694}
1336 1695
1337void 1696#if EV_PERIODIC_ENABLE
1697void noinline
1338ev_periodic_start (EV_P_ struct ev_periodic *w) 1698ev_periodic_start (EV_P_ ev_periodic *w)
1339{ 1699{
1340 if (ev_is_active (w)) 1700 if (expect_false (ev_is_active (w)))
1341 return; 1701 return;
1342 1702
1343 if (w->reschedule_cb) 1703 if (w->reschedule_cb)
1344 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1704 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1345 else if (w->interval) 1705 else if (w->interval)
1346 { 1706 {
1347 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1707 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1348 /* this formula differs from the one in periodic_reify because we do not always round up */ 1708 /* this formula differs from the one in periodic_reify because we do not always round up */
1349 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1709 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1350 } 1710 }
1711 else
1712 ((WT)w)->at = w->offset;
1351 1713
1352 ev_start (EV_A_ (W)w, ++periodiccnt); 1714 ev_start (EV_A_ (W)w, ++periodiccnt);
1353 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1715 array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2);
1354 periodics [periodiccnt - 1] = w; 1716 periodics [periodiccnt - 1] = (WT)w;
1355 upheap ((WT *)periodics, periodiccnt - 1); 1717 upheap (periodics, periodiccnt - 1);
1356 1718
1357 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1719 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1358} 1720}
1359 1721
1360void 1722void noinline
1361ev_periodic_stop (EV_P_ struct ev_periodic *w) 1723ev_periodic_stop (EV_P_ ev_periodic *w)
1362{ 1724{
1363 ev_clear_pending (EV_A_ (W)w); 1725 clear_pending (EV_A_ (W)w);
1364 if (!ev_is_active (w)) 1726 if (expect_false (!ev_is_active (w)))
1365 return; 1727 return;
1366 1728
1367 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1729 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w));
1368 1730
1369 if (((W)w)->active < periodiccnt--) 1731 {
1732 int active = ((W)w)->active;
1733
1734 if (expect_true (--active < --periodiccnt))
1370 { 1735 {
1371 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1736 periodics [active] = periodics [periodiccnt];
1372 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1737 adjustheap (periodics, periodiccnt, active);
1373 } 1738 }
1739 }
1374 1740
1375 ev_stop (EV_A_ (W)w); 1741 ev_stop (EV_A_ (W)w);
1376} 1742}
1377 1743
1378void 1744void noinline
1379ev_periodic_again (EV_P_ struct ev_periodic *w) 1745ev_periodic_again (EV_P_ ev_periodic *w)
1380{ 1746{
1747 /* TODO: use adjustheap and recalculation */
1381 ev_periodic_stop (EV_A_ w); 1748 ev_periodic_stop (EV_A_ w);
1382 ev_periodic_start (EV_A_ w); 1749 ev_periodic_start (EV_A_ w);
1383} 1750}
1384 1751#endif
1385void
1386ev_idle_start (EV_P_ struct ev_idle *w)
1387{
1388 if (ev_is_active (w))
1389 return;
1390
1391 ev_start (EV_A_ (W)w, ++idlecnt);
1392 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1393 idles [idlecnt - 1] = w;
1394}
1395
1396void
1397ev_idle_stop (EV_P_ struct ev_idle *w)
1398{
1399 ev_clear_pending (EV_A_ (W)w);
1400 if (ev_is_active (w))
1401 return;
1402
1403 idles [((W)w)->active - 1] = idles [--idlecnt];
1404 ev_stop (EV_A_ (W)w);
1405}
1406
1407void
1408ev_prepare_start (EV_P_ struct ev_prepare *w)
1409{
1410 if (ev_is_active (w))
1411 return;
1412
1413 ev_start (EV_A_ (W)w, ++preparecnt);
1414 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1415 prepares [preparecnt - 1] = w;
1416}
1417
1418void
1419ev_prepare_stop (EV_P_ struct ev_prepare *w)
1420{
1421 ev_clear_pending (EV_A_ (W)w);
1422 if (ev_is_active (w))
1423 return;
1424
1425 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1426 ev_stop (EV_A_ (W)w);
1427}
1428
1429void
1430ev_check_start (EV_P_ struct ev_check *w)
1431{
1432 if (ev_is_active (w))
1433 return;
1434
1435 ev_start (EV_A_ (W)w, ++checkcnt);
1436 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1437 checks [checkcnt - 1] = w;
1438}
1439
1440void
1441ev_check_stop (EV_P_ struct ev_check *w)
1442{
1443 ev_clear_pending (EV_A_ (W)w);
1444 if (ev_is_active (w))
1445 return;
1446
1447 checks [((W)w)->active - 1] = checks [--checkcnt];
1448 ev_stop (EV_A_ (W)w);
1449}
1450 1752
1451#ifndef SA_RESTART 1753#ifndef SA_RESTART
1452# define SA_RESTART 0 1754# define SA_RESTART 0
1453#endif 1755#endif
1454 1756
1455void 1757void noinline
1456ev_signal_start (EV_P_ struct ev_signal *w) 1758ev_signal_start (EV_P_ ev_signal *w)
1457{ 1759{
1458#if EV_MULTIPLICITY 1760#if EV_MULTIPLICITY
1459 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1761 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1460#endif 1762#endif
1461 if (ev_is_active (w)) 1763 if (expect_false (ev_is_active (w)))
1462 return; 1764 return;
1463 1765
1464 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1766 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1465 1767
1768 {
1769#ifndef _WIN32
1770 sigset_t full, prev;
1771 sigfillset (&full);
1772 sigprocmask (SIG_SETMASK, &full, &prev);
1773#endif
1774
1775 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1776
1777#ifndef _WIN32
1778 sigprocmask (SIG_SETMASK, &prev, 0);
1779#endif
1780 }
1781
1466 ev_start (EV_A_ (W)w, 1); 1782 ev_start (EV_A_ (W)w, 1);
1467 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1468 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1783 wlist_add (&signals [w->signum - 1].head, (WL)w);
1469 1784
1470 if (!((WL)w)->next) 1785 if (!((WL)w)->next)
1471 { 1786 {
1472#if WIN32 1787#if _WIN32
1473 signal (w->signum, sighandler); 1788 signal (w->signum, sighandler);
1474#else 1789#else
1475 struct sigaction sa; 1790 struct sigaction sa;
1476 sa.sa_handler = sighandler; 1791 sa.sa_handler = sighandler;
1477 sigfillset (&sa.sa_mask); 1792 sigfillset (&sa.sa_mask);
… …
1479 sigaction (w->signum, &sa, 0); 1794 sigaction (w->signum, &sa, 0);
1480#endif 1795#endif
1481 } 1796 }
1482} 1797}
1483 1798
1484void 1799void noinline
1485ev_signal_stop (EV_P_ struct ev_signal *w) 1800ev_signal_stop (EV_P_ ev_signal *w)
1486{ 1801{
1487 ev_clear_pending (EV_A_ (W)w); 1802 clear_pending (EV_A_ (W)w);
1488 if (!ev_is_active (w)) 1803 if (expect_false (!ev_is_active (w)))
1489 return; 1804 return;
1490 1805
1491 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1806 wlist_del (&signals [w->signum - 1].head, (WL)w);
1492 ev_stop (EV_A_ (W)w); 1807 ev_stop (EV_A_ (W)w);
1493 1808
1494 if (!signals [w->signum - 1].head) 1809 if (!signals [w->signum - 1].head)
1495 signal (w->signum, SIG_DFL); 1810 signal (w->signum, SIG_DFL);
1496} 1811}
1497 1812
1498void 1813void
1499ev_child_start (EV_P_ struct ev_child *w) 1814ev_child_start (EV_P_ ev_child *w)
1500{ 1815{
1501#if EV_MULTIPLICITY 1816#if EV_MULTIPLICITY
1502 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1817 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1503#endif 1818#endif
1504 if (ev_is_active (w)) 1819 if (expect_false (ev_is_active (w)))
1505 return; 1820 return;
1506 1821
1507 ev_start (EV_A_ (W)w, 1); 1822 ev_start (EV_A_ (W)w, 1);
1508 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1823 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1509} 1824}
1510 1825
1511void 1826void
1512ev_child_stop (EV_P_ struct ev_child *w) 1827ev_child_stop (EV_P_ ev_child *w)
1513{ 1828{
1514 ev_clear_pending (EV_A_ (W)w); 1829 clear_pending (EV_A_ (W)w);
1515 if (ev_is_active (w)) 1830 if (expect_false (!ev_is_active (w)))
1516 return; 1831 return;
1517 1832
1518 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1833 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1519 ev_stop (EV_A_ (W)w); 1834 ev_stop (EV_A_ (W)w);
1520} 1835}
1521 1836
1837#if EV_STAT_ENABLE
1838
1839# ifdef _WIN32
1840# undef lstat
1841# define lstat(a,b) _stati64 (a,b)
1842# endif
1843
1844#define DEF_STAT_INTERVAL 5.0074891
1845#define MIN_STAT_INTERVAL 0.1074891
1846
1847static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1848
1849#if EV_USE_INOTIFY
1850# define EV_INOTIFY_BUFSIZE 8192
1851
1852static void noinline
1853infy_add (EV_P_ ev_stat *w)
1854{
1855 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
1856
1857 if (w->wd < 0)
1858 {
1859 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1860
1861 /* monitor some parent directory for speedup hints */
1862 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1863 {
1864 char path [4096];
1865 strcpy (path, w->path);
1866
1867 do
1868 {
1869 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1870 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1871
1872 char *pend = strrchr (path, '/');
1873
1874 if (!pend)
1875 break; /* whoops, no '/', complain to your admin */
1876
1877 *pend = 0;
1878 w->wd = inotify_add_watch (fs_fd, path, mask);
1879 }
1880 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1881 }
1882 }
1883 else
1884 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1885
1886 if (w->wd >= 0)
1887 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1888}
1889
1890static void noinline
1891infy_del (EV_P_ ev_stat *w)
1892{
1893 int slot;
1894 int wd = w->wd;
1895
1896 if (wd < 0)
1897 return;
1898
1899 w->wd = -2;
1900 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1901 wlist_del (&fs_hash [slot].head, (WL)w);
1902
1903 /* remove this watcher, if others are watching it, they will rearm */
1904 inotify_rm_watch (fs_fd, wd);
1905}
1906
1907static void noinline
1908infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1909{
1910 if (slot < 0)
1911 /* overflow, need to check for all hahs slots */
1912 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1913 infy_wd (EV_A_ slot, wd, ev);
1914 else
1915 {
1916 WL w_;
1917
1918 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1919 {
1920 ev_stat *w = (ev_stat *)w_;
1921 w_ = w_->next; /* lets us remove this watcher and all before it */
1922
1923 if (w->wd == wd || wd == -1)
1924 {
1925 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1926 {
1927 w->wd = -1;
1928 infy_add (EV_A_ w); /* re-add, no matter what */
1929 }
1930
1931 stat_timer_cb (EV_A_ &w->timer, 0);
1932 }
1933 }
1934 }
1935}
1936
1937static void
1938infy_cb (EV_P_ ev_io *w, int revents)
1939{
1940 char buf [EV_INOTIFY_BUFSIZE];
1941 struct inotify_event *ev = (struct inotify_event *)buf;
1942 int ofs;
1943 int len = read (fs_fd, buf, sizeof (buf));
1944
1945 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1946 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1947}
1948
1949void inline_size
1950infy_init (EV_P)
1951{
1952 if (fs_fd != -2)
1953 return;
1954
1955 fs_fd = inotify_init ();
1956
1957 if (fs_fd >= 0)
1958 {
1959 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1960 ev_set_priority (&fs_w, EV_MAXPRI);
1961 ev_io_start (EV_A_ &fs_w);
1962 }
1963}
1964
1965void inline_size
1966infy_fork (EV_P)
1967{
1968 int slot;
1969
1970 if (fs_fd < 0)
1971 return;
1972
1973 close (fs_fd);
1974 fs_fd = inotify_init ();
1975
1976 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1977 {
1978 WL w_ = fs_hash [slot].head;
1979 fs_hash [slot].head = 0;
1980
1981 while (w_)
1982 {
1983 ev_stat *w = (ev_stat *)w_;
1984 w_ = w_->next; /* lets us add this watcher */
1985
1986 w->wd = -1;
1987
1988 if (fs_fd >= 0)
1989 infy_add (EV_A_ w); /* re-add, no matter what */
1990 else
1991 ev_timer_start (EV_A_ &w->timer);
1992 }
1993
1994 }
1995}
1996
1997#endif
1998
1999void
2000ev_stat_stat (EV_P_ ev_stat *w)
2001{
2002 if (lstat (w->path, &w->attr) < 0)
2003 w->attr.st_nlink = 0;
2004 else if (!w->attr.st_nlink)
2005 w->attr.st_nlink = 1;
2006}
2007
2008static void noinline
2009stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2010{
2011 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2012
2013 /* we copy this here each the time so that */
2014 /* prev has the old value when the callback gets invoked */
2015 w->prev = w->attr;
2016 ev_stat_stat (EV_A_ w);
2017
2018 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2019 if (
2020 w->prev.st_dev != w->attr.st_dev
2021 || w->prev.st_ino != w->attr.st_ino
2022 || w->prev.st_mode != w->attr.st_mode
2023 || w->prev.st_nlink != w->attr.st_nlink
2024 || w->prev.st_uid != w->attr.st_uid
2025 || w->prev.st_gid != w->attr.st_gid
2026 || w->prev.st_rdev != w->attr.st_rdev
2027 || w->prev.st_size != w->attr.st_size
2028 || w->prev.st_atime != w->attr.st_atime
2029 || w->prev.st_mtime != w->attr.st_mtime
2030 || w->prev.st_ctime != w->attr.st_ctime
2031 ) {
2032 #if EV_USE_INOTIFY
2033 infy_del (EV_A_ w);
2034 infy_add (EV_A_ w);
2035 ev_stat_stat (EV_A_ w); /* avoid race... */
2036 #endif
2037
2038 ev_feed_event (EV_A_ w, EV_STAT);
2039 }
2040}
2041
2042void
2043ev_stat_start (EV_P_ ev_stat *w)
2044{
2045 if (expect_false (ev_is_active (w)))
2046 return;
2047
2048 /* since we use memcmp, we need to clear any padding data etc. */
2049 memset (&w->prev, 0, sizeof (ev_statdata));
2050 memset (&w->attr, 0, sizeof (ev_statdata));
2051
2052 ev_stat_stat (EV_A_ w);
2053
2054 if (w->interval < MIN_STAT_INTERVAL)
2055 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2056
2057 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2058 ev_set_priority (&w->timer, ev_priority (w));
2059
2060#if EV_USE_INOTIFY
2061 infy_init (EV_A);
2062
2063 if (fs_fd >= 0)
2064 infy_add (EV_A_ w);
2065 else
2066#endif
2067 ev_timer_start (EV_A_ &w->timer);
2068
2069 ev_start (EV_A_ (W)w, 1);
2070}
2071
2072void
2073ev_stat_stop (EV_P_ ev_stat *w)
2074{
2075 clear_pending (EV_A_ (W)w);
2076 if (expect_false (!ev_is_active (w)))
2077 return;
2078
2079#if EV_USE_INOTIFY
2080 infy_del (EV_A_ w);
2081#endif
2082 ev_timer_stop (EV_A_ &w->timer);
2083
2084 ev_stop (EV_A_ (W)w);
2085}
2086#endif
2087
2088#if EV_IDLE_ENABLE
2089void
2090ev_idle_start (EV_P_ ev_idle *w)
2091{
2092 if (expect_false (ev_is_active (w)))
2093 return;
2094
2095 pri_adjust (EV_A_ (W)w);
2096
2097 {
2098 int active = ++idlecnt [ABSPRI (w)];
2099
2100 ++idleall;
2101 ev_start (EV_A_ (W)w, active);
2102
2103 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2104 idles [ABSPRI (w)][active - 1] = w;
2105 }
2106}
2107
2108void
2109ev_idle_stop (EV_P_ ev_idle *w)
2110{
2111 clear_pending (EV_A_ (W)w);
2112 if (expect_false (!ev_is_active (w)))
2113 return;
2114
2115 {
2116 int active = ((W)w)->active;
2117
2118 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2119 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2120
2121 ev_stop (EV_A_ (W)w);
2122 --idleall;
2123 }
2124}
2125#endif
2126
2127void
2128ev_prepare_start (EV_P_ ev_prepare *w)
2129{
2130 if (expect_false (ev_is_active (w)))
2131 return;
2132
2133 ev_start (EV_A_ (W)w, ++preparecnt);
2134 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2135 prepares [preparecnt - 1] = w;
2136}
2137
2138void
2139ev_prepare_stop (EV_P_ ev_prepare *w)
2140{
2141 clear_pending (EV_A_ (W)w);
2142 if (expect_false (!ev_is_active (w)))
2143 return;
2144
2145 {
2146 int active = ((W)w)->active;
2147 prepares [active - 1] = prepares [--preparecnt];
2148 ((W)prepares [active - 1])->active = active;
2149 }
2150
2151 ev_stop (EV_A_ (W)w);
2152}
2153
2154void
2155ev_check_start (EV_P_ ev_check *w)
2156{
2157 if (expect_false (ev_is_active (w)))
2158 return;
2159
2160 ev_start (EV_A_ (W)w, ++checkcnt);
2161 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2162 checks [checkcnt - 1] = w;
2163}
2164
2165void
2166ev_check_stop (EV_P_ ev_check *w)
2167{
2168 clear_pending (EV_A_ (W)w);
2169 if (expect_false (!ev_is_active (w)))
2170 return;
2171
2172 {
2173 int active = ((W)w)->active;
2174 checks [active - 1] = checks [--checkcnt];
2175 ((W)checks [active - 1])->active = active;
2176 }
2177
2178 ev_stop (EV_A_ (W)w);
2179}
2180
2181#if EV_EMBED_ENABLE
2182void noinline
2183ev_embed_sweep (EV_P_ ev_embed *w)
2184{
2185 ev_loop (w->loop, EVLOOP_NONBLOCK);
2186}
2187
2188static void
2189embed_cb (EV_P_ ev_io *io, int revents)
2190{
2191 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2192
2193 if (ev_cb (w))
2194 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2195 else
2196 ev_embed_sweep (loop, w);
2197}
2198
2199void
2200ev_embed_start (EV_P_ ev_embed *w)
2201{
2202 if (expect_false (ev_is_active (w)))
2203 return;
2204
2205 {
2206 struct ev_loop *loop = w->loop;
2207 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2208 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2209 }
2210
2211 ev_set_priority (&w->io, ev_priority (w));
2212 ev_io_start (EV_A_ &w->io);
2213
2214 ev_start (EV_A_ (W)w, 1);
2215}
2216
2217void
2218ev_embed_stop (EV_P_ ev_embed *w)
2219{
2220 clear_pending (EV_A_ (W)w);
2221 if (expect_false (!ev_is_active (w)))
2222 return;
2223
2224 ev_io_stop (EV_A_ &w->io);
2225
2226 ev_stop (EV_A_ (W)w);
2227}
2228#endif
2229
2230#if EV_FORK_ENABLE
2231void
2232ev_fork_start (EV_P_ ev_fork *w)
2233{
2234 if (expect_false (ev_is_active (w)))
2235 return;
2236
2237 ev_start (EV_A_ (W)w, ++forkcnt);
2238 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2239 forks [forkcnt - 1] = w;
2240}
2241
2242void
2243ev_fork_stop (EV_P_ ev_fork *w)
2244{
2245 clear_pending (EV_A_ (W)w);
2246 if (expect_false (!ev_is_active (w)))
2247 return;
2248
2249 {
2250 int active = ((W)w)->active;
2251 forks [active - 1] = forks [--forkcnt];
2252 ((W)forks [active - 1])->active = active;
2253 }
2254
2255 ev_stop (EV_A_ (W)w);
2256}
2257#endif
2258
1522/*****************************************************************************/ 2259/*****************************************************************************/
1523 2260
1524struct ev_once 2261struct ev_once
1525{ 2262{
1526 struct ev_io io; 2263 ev_io io;
1527 struct ev_timer to; 2264 ev_timer to;
1528 void (*cb)(int revents, void *arg); 2265 void (*cb)(int revents, void *arg);
1529 void *arg; 2266 void *arg;
1530}; 2267};
1531 2268
1532static void 2269static void
… …
1541 2278
1542 cb (revents, arg); 2279 cb (revents, arg);
1543} 2280}
1544 2281
1545static void 2282static void
1546once_cb_io (EV_P_ struct ev_io *w, int revents) 2283once_cb_io (EV_P_ ev_io *w, int revents)
1547{ 2284{
1548 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2285 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1549} 2286}
1550 2287
1551static void 2288static void
1552once_cb_to (EV_P_ struct ev_timer *w, int revents) 2289once_cb_to (EV_P_ ev_timer *w, int revents)
1553{ 2290{
1554 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2291 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1555} 2292}
1556 2293
1557void 2294void
1558ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2295ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1559{ 2296{
1560 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2297 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1561 2298
1562 if (!once) 2299 if (expect_false (!once))
2300 {
1563 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2301 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1564 else 2302 return;
1565 { 2303 }
2304
1566 once->cb = cb; 2305 once->cb = cb;
1567 once->arg = arg; 2306 once->arg = arg;
1568 2307
1569 ev_watcher_init (&once->io, once_cb_io); 2308 ev_init (&once->io, once_cb_io);
1570 if (fd >= 0) 2309 if (fd >= 0)
1571 { 2310 {
1572 ev_io_set (&once->io, fd, events); 2311 ev_io_set (&once->io, fd, events);
1573 ev_io_start (EV_A_ &once->io); 2312 ev_io_start (EV_A_ &once->io);
1574 } 2313 }
1575 2314
1576 ev_watcher_init (&once->to, once_cb_to); 2315 ev_init (&once->to, once_cb_to);
1577 if (timeout >= 0.) 2316 if (timeout >= 0.)
1578 { 2317 {
1579 ev_timer_set (&once->to, timeout, 0.); 2318 ev_timer_set (&once->to, timeout, 0.);
1580 ev_timer_start (EV_A_ &once->to); 2319 ev_timer_start (EV_A_ &once->to);
1581 }
1582 } 2320 }
1583} 2321}
1584 2322
2323#ifdef __cplusplus
2324}
2325#endif
2326

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