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Comparing libev/ev.c (file contents):
Revision 1.82 by root, Fri Nov 9 20:55:09 2007 UTC vs.
Revision 1.179 by root, Tue Dec 11 21:04:40 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_SELECT_IS_WINSOCKET
208# include <winsock.h>
209#endif
210
211#if !EV_STAT_ENABLE
212# define EV_USE_INOTIFY 0
213#endif
214
215#if EV_USE_INOTIFY
216# include <sys/inotify.h>
217#endif
218
219/**/
220
221/*
222 * This is used to avoid floating point rounding problems.
223 * It is added to ev_rt_now when scheduling periodics
224 * to ensure progress, time-wise, even when rounding
225 * errors are against us.
226 * This value is good at least till the year 4000.
227 * Better solutions welcome.
228 */
229#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
230
231#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
232#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
233/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
234
137#if __GNUC__ >= 3 235#if __GNUC__ >= 3
138# define expect(expr,value) __builtin_expect ((expr),(value)) 236# define expect(expr,value) __builtin_expect ((expr),(value))
139# define inline inline 237# define noinline __attribute__ ((noinline))
140#else 238#else
141# define expect(expr,value) (expr) 239# define expect(expr,value) (expr)
142# define inline static 240# define noinline
241# if __STDC_VERSION__ < 199901L
242# define inline
243# endif
143#endif 244#endif
144 245
145#define expect_false(expr) expect ((expr) != 0, 0) 246#define expect_false(expr) expect ((expr) != 0, 0)
146#define expect_true(expr) expect ((expr) != 0, 1) 247#define expect_true(expr) expect ((expr) != 0, 1)
248#define inline_size static inline
249
250#if EV_MINIMAL
251# define inline_speed static noinline
252#else
253# define inline_speed static inline
254#endif
147 255
148#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 256#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149#define ABSPRI(w) ((w)->priority - EV_MINPRI) 257#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
150 258
259#define EMPTY /* required for microsofts broken pseudo-c compiler */
260#define EMPTY2(a,b) /* used to suppress some warnings */
261
151typedef struct ev_watcher *W; 262typedef ev_watcher *W;
152typedef struct ev_watcher_list *WL; 263typedef ev_watcher_list *WL;
153typedef struct ev_watcher_time *WT; 264typedef ev_watcher_time *WT;
154 265
155static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 266static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156 267
268#ifdef _WIN32
157#include "ev_win32.c" 269# include "ev_win32.c"
270#endif
158 271
159/*****************************************************************************/ 272/*****************************************************************************/
160 273
161static void (*syserr_cb)(const char *msg); 274static void (*syserr_cb)(const char *msg);
162 275
276void
163void ev_set_syserr_cb (void (*cb)(const char *msg)) 277ev_set_syserr_cb (void (*cb)(const char *msg))
164{ 278{
165 syserr_cb = cb; 279 syserr_cb = cb;
166} 280}
167 281
168static void 282static void noinline
169syserr (const char *msg) 283syserr (const char *msg)
170{ 284{
171 if (!msg) 285 if (!msg)
172 msg = "(libev) system error"; 286 msg = "(libev) system error";
173 287
… …
180 } 294 }
181} 295}
182 296
183static void *(*alloc)(void *ptr, long size); 297static void *(*alloc)(void *ptr, long size);
184 298
299void
185void ev_set_allocator (void *(*cb)(void *ptr, long size)) 300ev_set_allocator (void *(*cb)(void *ptr, long size))
186{ 301{
187 alloc = cb; 302 alloc = cb;
188} 303}
189 304
190static void * 305inline_speed void *
191ev_realloc (void *ptr, long size) 306ev_realloc (void *ptr, long size)
192{ 307{
193 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 308 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
194 309
195 if (!ptr && size) 310 if (!ptr && size)
… …
209typedef struct 324typedef struct
210{ 325{
211 WL head; 326 WL head;
212 unsigned char events; 327 unsigned char events;
213 unsigned char reify; 328 unsigned char reify;
329#if EV_SELECT_IS_WINSOCKET
330 SOCKET handle;
331#endif
214} ANFD; 332} ANFD;
215 333
216typedef struct 334typedef struct
217{ 335{
218 W w; 336 W w;
219 int events; 337 int events;
220} ANPENDING; 338} ANPENDING;
221 339
340#if EV_USE_INOTIFY
341typedef struct
342{
343 WL head;
344} ANFS;
345#endif
346
222#if EV_MULTIPLICITY 347#if EV_MULTIPLICITY
223 348
224 struct ev_loop 349 struct ev_loop
225 { 350 {
351 ev_tstamp ev_rt_now;
352 #define ev_rt_now ((loop)->ev_rt_now)
226 #define VAR(name,decl) decl; 353 #define VAR(name,decl) decl;
227 #include "ev_vars.h" 354 #include "ev_vars.h"
228 #undef VAR 355 #undef VAR
229 }; 356 };
230 #include "ev_wrap.h" 357 #include "ev_wrap.h"
231 358
232 struct ev_loop default_loop_struct; 359 static struct ev_loop default_loop_struct;
233 static struct ev_loop *default_loop; 360 struct ev_loop *ev_default_loop_ptr;
234 361
235#else 362#else
236 363
364 ev_tstamp ev_rt_now;
237 #define VAR(name,decl) static decl; 365 #define VAR(name,decl) static decl;
238 #include "ev_vars.h" 366 #include "ev_vars.h"
239 #undef VAR 367 #undef VAR
240 368
241 static int default_loop; 369 static int ev_default_loop_ptr;
242 370
243#endif 371#endif
244 372
245/*****************************************************************************/ 373/*****************************************************************************/
246 374
247inline ev_tstamp 375ev_tstamp
248ev_time (void) 376ev_time (void)
249{ 377{
250#if EV_USE_REALTIME 378#if EV_USE_REALTIME
251 struct timespec ts; 379 struct timespec ts;
252 clock_gettime (CLOCK_REALTIME, &ts); 380 clock_gettime (CLOCK_REALTIME, &ts);
… …
256 gettimeofday (&tv, 0); 384 gettimeofday (&tv, 0);
257 return tv.tv_sec + tv.tv_usec * 1e-6; 385 return tv.tv_sec + tv.tv_usec * 1e-6;
258#endif 386#endif
259} 387}
260 388
261inline ev_tstamp 389ev_tstamp inline_size
262get_clock (void) 390get_clock (void)
263{ 391{
264#if EV_USE_MONOTONIC 392#if EV_USE_MONOTONIC
265 if (expect_true (have_monotonic)) 393 if (expect_true (have_monotonic))
266 { 394 {
… …
271#endif 399#endif
272 400
273 return ev_time (); 401 return ev_time ();
274} 402}
275 403
404#if EV_MULTIPLICITY
276ev_tstamp 405ev_tstamp
277ev_now (EV_P) 406ev_now (EV_P)
278{ 407{
279 return rt_now; 408 return ev_rt_now;
280} 409}
410#endif
281 411
282#define array_roundsize(type,n) ((n) | 4 & ~3) 412int inline_size
413array_nextsize (int elem, int cur, int cnt)
414{
415 int ncur = cur + 1;
416
417 do
418 ncur <<= 1;
419 while (cnt > ncur);
420
421 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
422 if (elem * ncur > 4096)
423 {
424 ncur *= elem;
425 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
426 ncur = ncur - sizeof (void *) * 4;
427 ncur /= elem;
428 }
429
430 return ncur;
431}
432
433static noinline void *
434array_realloc (int elem, void *base, int *cur, int cnt)
435{
436 *cur = array_nextsize (elem, *cur, cnt);
437 return ev_realloc (base, elem * *cur);
438}
283 439
284#define array_needsize(type,base,cur,cnt,init) \ 440#define array_needsize(type,base,cur,cnt,init) \
285 if (expect_false ((cnt) > cur)) \ 441 if (expect_false ((cnt) > (cur))) \
286 { \ 442 { \
287 int newcnt = cur; \ 443 int ocur_ = (cur); \
288 do \ 444 (base) = (type *)array_realloc \
289 { \ 445 (sizeof (type), (base), &(cur), (cnt)); \
290 newcnt = array_roundsize (type, newcnt << 1); \ 446 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 } 447 }
298 448
449#if 0
299#define array_slim(type,stem) \ 450#define array_slim(type,stem) \
300 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 451 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
301 { \ 452 { \
302 stem ## max = array_roundsize (stem ## cnt >> 1); \ 453 stem ## max = array_roundsize (stem ## cnt >> 1); \
303 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 454 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
304 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 455 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
305 } 456 }
306 457#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;
311 458
312#define array_free(stem, idx) \ 459#define array_free(stem, idx) \
313 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 460 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
314 461
315/*****************************************************************************/ 462/*****************************************************************************/
316 463
317static void 464void noinline
465ev_feed_event (EV_P_ void *w, int revents)
466{
467 W w_ = (W)w;
468 int pri = ABSPRI (w_);
469
470 if (expect_false (w_->pending))
471 pendings [pri][w_->pending - 1].events |= revents;
472 else
473 {
474 w_->pending = ++pendingcnt [pri];
475 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
476 pendings [pri][w_->pending - 1].w = w_;
477 pendings [pri][w_->pending - 1].events = revents;
478 }
479}
480
481void inline_speed
482queue_events (EV_P_ W *events, int eventcnt, int type)
483{
484 int i;
485
486 for (i = 0; i < eventcnt; ++i)
487 ev_feed_event (EV_A_ events [i], type);
488}
489
490/*****************************************************************************/
491
492void inline_size
318anfds_init (ANFD *base, int count) 493anfds_init (ANFD *base, int count)
319{ 494{
320 while (count--) 495 while (count--)
321 { 496 {
322 base->head = 0; 497 base->head = 0;
… …
325 500
326 ++base; 501 ++base;
327 } 502 }
328} 503}
329 504
330void 505void 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) 506fd_event (EV_P_ int fd, int revents)
358{ 507{
359 ANFD *anfd = anfds + fd; 508 ANFD *anfd = anfds + fd;
360 struct ev_io *w; 509 ev_io *w;
361 510
362 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 511 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
363 { 512 {
364 int ev = w->events & revents; 513 int ev = w->events & revents;
365 514
366 if (ev) 515 if (ev)
367 ev_feed_event (EV_A_ (W)w, ev); 516 ev_feed_event (EV_A_ (W)w, ev);
… …
369} 518}
370 519
371void 520void
372ev_feed_fd_event (EV_P_ int fd, int revents) 521ev_feed_fd_event (EV_P_ int fd, int revents)
373{ 522{
523 if (fd >= 0 && fd < anfdmax)
374 fd_event (EV_A_ fd, revents); 524 fd_event (EV_A_ fd, revents);
375} 525}
376 526
377/*****************************************************************************/ 527void inline_size
378
379static void
380fd_reify (EV_P) 528fd_reify (EV_P)
381{ 529{
382 int i; 530 int i;
383 531
384 for (i = 0; i < fdchangecnt; ++i) 532 for (i = 0; i < fdchangecnt; ++i)
385 { 533 {
386 int fd = fdchanges [i]; 534 int fd = fdchanges [i];
387 ANFD *anfd = anfds + fd; 535 ANFD *anfd = anfds + fd;
388 struct ev_io *w; 536 ev_io *w;
389 537
390 int events = 0; 538 int events = 0;
391 539
392 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 540 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
393 events |= w->events; 541 events |= w->events;
394 542
543#if EV_SELECT_IS_WINSOCKET
544 if (events)
545 {
546 unsigned long argp;
547 anfd->handle = _get_osfhandle (fd);
548 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
549 }
550#endif
551
395 anfd->reify = 0; 552 anfd->reify = 0;
396 553
397 method_modify (EV_A_ fd, anfd->events, events); 554 backend_modify (EV_A_ fd, anfd->events, events);
398 anfd->events = events; 555 anfd->events = events;
399 } 556 }
400 557
401 fdchangecnt = 0; 558 fdchangecnt = 0;
402} 559}
403 560
404static void 561void inline_size
405fd_change (EV_P_ int fd) 562fd_change (EV_P_ int fd)
406{ 563{
407 if (anfds [fd].reify) 564 if (expect_false (anfds [fd].reify))
408 return; 565 return;
409 566
410 anfds [fd].reify = 1; 567 anfds [fd].reify = 1;
411 568
412 ++fdchangecnt; 569 ++fdchangecnt;
413 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 570 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
414 fdchanges [fdchangecnt - 1] = fd; 571 fdchanges [fdchangecnt - 1] = fd;
415} 572}
416 573
417static void 574void inline_speed
418fd_kill (EV_P_ int fd) 575fd_kill (EV_P_ int fd)
419{ 576{
420 struct ev_io *w; 577 ev_io *w;
421 578
422 while ((w = (struct ev_io *)anfds [fd].head)) 579 while ((w = (ev_io *)anfds [fd].head))
423 { 580 {
424 ev_io_stop (EV_A_ w); 581 ev_io_stop (EV_A_ w);
425 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 582 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
426 } 583 }
427} 584}
428 585
429static int 586int inline_size
430fd_valid (int fd) 587fd_valid (int fd)
431{ 588{
432#ifdef WIN32 589#ifdef _WIN32
433 return !!win32_get_osfhandle (fd); 590 return _get_osfhandle (fd) != -1;
434#else 591#else
435 return fcntl (fd, F_GETFD) != -1; 592 return fcntl (fd, F_GETFD) != -1;
436#endif 593#endif
437} 594}
438 595
439/* called on EBADF to verify fds */ 596/* called on EBADF to verify fds */
440static void 597static void noinline
441fd_ebadf (EV_P) 598fd_ebadf (EV_P)
442{ 599{
443 int fd; 600 int fd;
444 601
445 for (fd = 0; fd < anfdmax; ++fd) 602 for (fd = 0; fd < anfdmax; ++fd)
… …
447 if (!fd_valid (fd) == -1 && errno == EBADF) 604 if (!fd_valid (fd) == -1 && errno == EBADF)
448 fd_kill (EV_A_ fd); 605 fd_kill (EV_A_ fd);
449} 606}
450 607
451/* called on ENOMEM in select/poll to kill some fds and retry */ 608/* called on ENOMEM in select/poll to kill some fds and retry */
452static void 609static void noinline
453fd_enomem (EV_P) 610fd_enomem (EV_P)
454{ 611{
455 int fd; 612 int fd;
456 613
457 for (fd = anfdmax; fd--; ) 614 for (fd = anfdmax; fd--; )
… …
460 fd_kill (EV_A_ fd); 617 fd_kill (EV_A_ fd);
461 return; 618 return;
462 } 619 }
463} 620}
464 621
465/* usually called after fork if method needs to re-arm all fds from scratch */ 622/* usually called after fork if backend needs to re-arm all fds from scratch */
466static void 623static void noinline
467fd_rearm_all (EV_P) 624fd_rearm_all (EV_P)
468{ 625{
469 int fd; 626 int fd;
470 627
471 /* this should be highly optimised to not do anything but set a flag */
472 for (fd = 0; fd < anfdmax; ++fd) 628 for (fd = 0; fd < anfdmax; ++fd)
473 if (anfds [fd].events) 629 if (anfds [fd].events)
474 { 630 {
475 anfds [fd].events = 0; 631 anfds [fd].events = 0;
476 fd_change (EV_A_ fd); 632 fd_change (EV_A_ fd);
477 } 633 }
478} 634}
479 635
480/*****************************************************************************/ 636/*****************************************************************************/
481 637
482static void 638void inline_speed
483upheap (WT *heap, int k) 639upheap (WT *heap, int k)
484{ 640{
485 WT w = heap [k]; 641 WT w = heap [k];
486 642
487 while (k && heap [k >> 1]->at > w->at) 643 while (k)
488 { 644 {
645 int p = (k - 1) >> 1;
646
647 if (heap [p]->at <= w->at)
648 break;
649
489 heap [k] = heap [k >> 1]; 650 heap [k] = heap [p];
490 ((W)heap [k])->active = k + 1; 651 ((W)heap [k])->active = k + 1;
491 k >>= 1; 652 k = p;
492 } 653 }
493 654
494 heap [k] = w; 655 heap [k] = w;
495 ((W)heap [k])->active = k + 1; 656 ((W)heap [k])->active = k + 1;
496 657
497} 658}
498 659
499static void 660void inline_speed
500downheap (WT *heap, int N, int k) 661downheap (WT *heap, int N, int k)
501{ 662{
502 WT w = heap [k]; 663 WT w = heap [k];
503 664
504 while (k < (N >> 1)) 665 for (;;)
505 { 666 {
506 int j = k << 1; 667 int c = (k << 1) + 1;
507 668
508 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 669 if (c >= N)
509 ++j;
510
511 if (w->at <= heap [j]->at)
512 break; 670 break;
513 671
672 c += c + 1 < N && heap [c]->at > heap [c + 1]->at
673 ? 1 : 0;
674
675 if (w->at <= heap [c]->at)
676 break;
677
514 heap [k] = heap [j]; 678 heap [k] = heap [c];
515 ((W)heap [k])->active = k + 1; 679 ((W)heap [k])->active = k + 1;
680
516 k = j; 681 k = c;
517 } 682 }
518 683
519 heap [k] = w; 684 heap [k] = w;
520 ((W)heap [k])->active = k + 1; 685 ((W)heap [k])->active = k + 1;
686}
687
688void inline_size
689adjustheap (WT *heap, int N, int k)
690{
691 upheap (heap, k);
692 downheap (heap, N, k);
521} 693}
522 694
523/*****************************************************************************/ 695/*****************************************************************************/
524 696
525typedef struct 697typedef struct
… …
531static ANSIG *signals; 703static ANSIG *signals;
532static int signalmax; 704static int signalmax;
533 705
534static int sigpipe [2]; 706static int sigpipe [2];
535static sig_atomic_t volatile gotsig; 707static sig_atomic_t volatile gotsig;
536static struct ev_io sigev; 708static ev_io sigev;
537 709
538static void 710void inline_size
539signals_init (ANSIG *base, int count) 711signals_init (ANSIG *base, int count)
540{ 712{
541 while (count--) 713 while (count--)
542 { 714 {
543 base->head = 0; 715 base->head = 0;
… …
548} 720}
549 721
550static void 722static void
551sighandler (int signum) 723sighandler (int signum)
552{ 724{
553#if WIN32 725#if _WIN32
554 signal (signum, sighandler); 726 signal (signum, sighandler);
555#endif 727#endif
556 728
557 signals [signum - 1].gotsig = 1; 729 signals [signum - 1].gotsig = 1;
558 730
559 if (!gotsig) 731 if (!gotsig)
560 { 732 {
561 int old_errno = errno; 733 int old_errno = errno;
562 gotsig = 1; 734 gotsig = 1;
563#ifdef WIN32
564 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
565#else
566 write (sigpipe [1], &signum, 1); 735 write (sigpipe [1], &signum, 1);
567#endif
568 errno = old_errno; 736 errno = old_errno;
569 } 737 }
570} 738}
571 739
572void 740void noinline
573ev_feed_signal_event (EV_P_ int signum) 741ev_feed_signal_event (EV_P_ int signum)
574{ 742{
575 WL w; 743 WL w;
576 744
577#if EV_MULTIPLICITY 745#if EV_MULTIPLICITY
578 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 746 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
579#endif 747#endif
580 748
581 --signum; 749 --signum;
582 750
583 if (signum < 0 || signum >= signalmax) 751 if (signum < 0 || signum >= signalmax)
… …
588 for (w = signals [signum].head; w; w = w->next) 756 for (w = signals [signum].head; w; w = w->next)
589 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 757 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
590} 758}
591 759
592static void 760static void
593sigcb (EV_P_ struct ev_io *iow, int revents) 761sigcb (EV_P_ ev_io *iow, int revents)
594{ 762{
595 int signum; 763 int signum;
596 764
597#ifdef WIN32
598 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
599#else
600 read (sigpipe [0], &revents, 1); 765 read (sigpipe [0], &revents, 1);
601#endif
602 gotsig = 0; 766 gotsig = 0;
603 767
604 for (signum = signalmax; signum--; ) 768 for (signum = signalmax; signum--; )
605 if (signals [signum].gotsig) 769 if (signals [signum].gotsig)
606 ev_feed_signal_event (EV_A_ signum + 1); 770 ev_feed_signal_event (EV_A_ signum + 1);
607} 771}
608 772
609static void 773void inline_speed
774fd_intern (int fd)
775{
776#ifdef _WIN32
777 int arg = 1;
778 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
779#else
780 fcntl (fd, F_SETFD, FD_CLOEXEC);
781 fcntl (fd, F_SETFL, O_NONBLOCK);
782#endif
783}
784
785static void noinline
610siginit (EV_P) 786siginit (EV_P)
611{ 787{
612#ifndef WIN32 788 fd_intern (sigpipe [0]);
613 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 789 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
620 790
621 ev_io_set (&sigev, sigpipe [0], EV_READ); 791 ev_io_set (&sigev, sigpipe [0], EV_READ);
622 ev_io_start (EV_A_ &sigev); 792 ev_io_start (EV_A_ &sigev);
623 ev_unref (EV_A); /* child watcher should not keep loop alive */ 793 ev_unref (EV_A); /* child watcher should not keep loop alive */
624} 794}
625 795
626/*****************************************************************************/ 796/*****************************************************************************/
627 797
628static struct ev_child *childs [PID_HASHSIZE]; 798static ev_child *childs [EV_PID_HASHSIZE];
629 799
630#ifndef WIN32 800#ifndef _WIN32
631 801
632static struct ev_signal childev; 802static ev_signal childev;
803
804void inline_speed
805child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
806{
807 ev_child *w;
808
809 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
810 if (w->pid == pid || !w->pid)
811 {
812 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
813 w->rpid = pid;
814 w->rstatus = status;
815 ev_feed_event (EV_A_ (W)w, EV_CHILD);
816 }
817}
633 818
634#ifndef WCONTINUED 819#ifndef WCONTINUED
635# define WCONTINUED 0 820# define WCONTINUED 0
636#endif 821#endif
637 822
638static void 823static 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) 824childcb (EV_P_ ev_signal *sw, int revents)
655{ 825{
656 int pid, status; 826 int pid, status;
657 827
828 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
658 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 829 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
659 { 830 if (!WCONTINUED
831 || errno != EINVAL
832 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
833 return;
834
660 /* make sure we are called again until all childs have been reaped */ 835 /* make sure we are called again until all childs have been reaped */
836 /* we need to do it this way so that the callback gets called before we continue */
661 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 837 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
662 838
663 child_reap (EV_A_ sw, pid, pid, status); 839 child_reap (EV_A_ sw, pid, pid, status);
840 if (EV_PID_HASHSIZE > 1)
664 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 841 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
665 }
666} 842}
667 843
668#endif 844#endif
669 845
670/*****************************************************************************/ 846/*****************************************************************************/
671 847
848#if EV_USE_PORT
849# include "ev_port.c"
850#endif
672#if EV_USE_KQUEUE 851#if EV_USE_KQUEUE
673# include "ev_kqueue.c" 852# include "ev_kqueue.c"
674#endif 853#endif
675#if EV_USE_EPOLL 854#if EV_USE_EPOLL
676# include "ev_epoll.c" 855# include "ev_epoll.c"
… …
693{ 872{
694 return EV_VERSION_MINOR; 873 return EV_VERSION_MINOR;
695} 874}
696 875
697/* return true if we are running with elevated privileges and should ignore env variables */ 876/* return true if we are running with elevated privileges and should ignore env variables */
698static int 877int inline_size
699enable_secure (void) 878enable_secure (void)
700{ 879{
701#ifdef WIN32 880#ifdef _WIN32
702 return 0; 881 return 0;
703#else 882#else
704 return getuid () != geteuid () 883 return getuid () != geteuid ()
705 || getgid () != getegid (); 884 || getgid () != getegid ();
706#endif 885#endif
707} 886}
708 887
709int 888unsigned int
710ev_method (EV_P) 889ev_supported_backends (void)
711{ 890{
712 return method; 891 unsigned int flags = 0;
713}
714 892
715static void 893 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
716loop_init (EV_P_ int methods) 894 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
895 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
896 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
897 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
898
899 return flags;
900}
901
902unsigned int
903ev_recommended_backends (void)
717{ 904{
718 if (!method) 905 unsigned int flags = ev_supported_backends ();
906
907#ifndef __NetBSD__
908 /* kqueue is borked on everything but netbsd apparently */
909 /* it usually doesn't work correctly on anything but sockets and pipes */
910 flags &= ~EVBACKEND_KQUEUE;
911#endif
912#ifdef __APPLE__
913 // flags &= ~EVBACKEND_KQUEUE; for documentation
914 flags &= ~EVBACKEND_POLL;
915#endif
916
917 return flags;
918}
919
920unsigned int
921ev_embeddable_backends (void)
922{
923 return EVBACKEND_EPOLL
924 | EVBACKEND_KQUEUE
925 | EVBACKEND_PORT;
926}
927
928unsigned int
929ev_backend (EV_P)
930{
931 return backend;
932}
933
934unsigned int
935ev_loop_count (EV_P)
936{
937 return loop_count;
938}
939
940static void noinline
941loop_init (EV_P_ unsigned int flags)
942{
943 if (!backend)
719 { 944 {
720#if EV_USE_MONOTONIC 945#if EV_USE_MONOTONIC
721 { 946 {
722 struct timespec ts; 947 struct timespec ts;
723 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 948 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
724 have_monotonic = 1; 949 have_monotonic = 1;
725 } 950 }
726#endif 951#endif
727 952
728 rt_now = ev_time (); 953 ev_rt_now = ev_time ();
729 mn_now = get_clock (); 954 mn_now = get_clock ();
730 now_floor = mn_now; 955 now_floor = mn_now;
731 rtmn_diff = rt_now - mn_now; 956 rtmn_diff = ev_rt_now - mn_now;
732 957
733 if (methods == EVMETHOD_AUTO) 958 /* pid check not overridable via env */
734 if (!enable_secure () && getenv ("LIBEV_METHODS")) 959#ifndef _WIN32
960 if (flags & EVFLAG_FORKCHECK)
961 curpid = getpid ();
962#endif
963
964 if (!(flags & EVFLAG_NOENV)
965 && !enable_secure ()
966 && getenv ("LIBEV_FLAGS"))
735 methods = atoi (getenv ("LIBEV_METHODS")); 967 flags = atoi (getenv ("LIBEV_FLAGS"));
736 else
737 methods = EVMETHOD_ANY;
738 968
739 method = 0; 969 if (!(flags & 0x0000ffffUL))
970 flags |= ev_recommended_backends ();
971
972 backend = 0;
973 backend_fd = -1;
740#if EV_USE_WIN32 974#if EV_USE_INOTIFY
741 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); 975 fs_fd = -2;
976#endif
977
978#if EV_USE_PORT
979 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
742#endif 980#endif
743#if EV_USE_KQUEUE 981#if EV_USE_KQUEUE
744 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 982 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
745#endif 983#endif
746#if EV_USE_EPOLL 984#if EV_USE_EPOLL
747 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 985 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
748#endif 986#endif
749#if EV_USE_POLL 987#if EV_USE_POLL
750 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 988 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
751#endif 989#endif
752#if EV_USE_SELECT 990#if EV_USE_SELECT
753 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 991 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
754#endif 992#endif
755 993
756 ev_watcher_init (&sigev, sigcb); 994 ev_init (&sigev, sigcb);
757 ev_set_priority (&sigev, EV_MAXPRI); 995 ev_set_priority (&sigev, EV_MAXPRI);
758 } 996 }
759} 997}
760 998
761void 999static void noinline
762loop_destroy (EV_P) 1000loop_destroy (EV_P)
763{ 1001{
764 int i; 1002 int i;
765 1003
766#if EV_USE_WIN32 1004#if EV_USE_INOTIFY
767 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); 1005 if (fs_fd >= 0)
1006 close (fs_fd);
1007#endif
1008
1009 if (backend_fd >= 0)
1010 close (backend_fd);
1011
1012#if EV_USE_PORT
1013 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
768#endif 1014#endif
769#if EV_USE_KQUEUE 1015#if EV_USE_KQUEUE
770 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1016 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
771#endif 1017#endif
772#if EV_USE_EPOLL 1018#if EV_USE_EPOLL
773 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1019 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
774#endif 1020#endif
775#if EV_USE_POLL 1021#if EV_USE_POLL
776 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1022 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
777#endif 1023#endif
778#if EV_USE_SELECT 1024#if EV_USE_SELECT
779 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1025 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
780#endif 1026#endif
781 1027
782 for (i = NUMPRI; i--; ) 1028 for (i = NUMPRI; i--; )
1029 {
783 array_free (pending, [i]); 1030 array_free (pending, [i]);
1031#if EV_IDLE_ENABLE
1032 array_free (idle, [i]);
1033#endif
1034 }
784 1035
785 /* have to use the microsoft-never-gets-it-right macro */ 1036 /* have to use the microsoft-never-gets-it-right macro */
786 array_free_microshit (fdchange); 1037 array_free (fdchange, EMPTY);
787 array_free_microshit (timer); 1038 array_free (timer, EMPTY);
788 array_free_microshit (periodic); 1039#if EV_PERIODIC_ENABLE
789 array_free_microshit (idle); 1040 array_free (periodic, EMPTY);
790 array_free_microshit (prepare); 1041#endif
791 array_free_microshit (check); 1042 array_free (prepare, EMPTY);
1043 array_free (check, EMPTY);
792 1044
793 method = 0; 1045 backend = 0;
794} 1046}
795 1047
796static void 1048void inline_size infy_fork (EV_P);
1049
1050void inline_size
797loop_fork (EV_P) 1051loop_fork (EV_P)
798{ 1052{
1053#if EV_USE_PORT
1054 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1055#endif
1056#if EV_USE_KQUEUE
1057 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1058#endif
799#if EV_USE_EPOLL 1059#if EV_USE_EPOLL
800 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1060 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
801#endif 1061#endif
802#if EV_USE_KQUEUE 1062#if EV_USE_INOTIFY
803 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1063 infy_fork (EV_A);
804#endif 1064#endif
805 1065
806 if (ev_is_active (&sigev)) 1066 if (ev_is_active (&sigev))
807 { 1067 {
808 /* default loop */ 1068 /* default loop */
… …
821 postfork = 0; 1081 postfork = 0;
822} 1082}
823 1083
824#if EV_MULTIPLICITY 1084#if EV_MULTIPLICITY
825struct ev_loop * 1085struct ev_loop *
826ev_loop_new (int methods) 1086ev_loop_new (unsigned int flags)
827{ 1087{
828 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1088 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
829 1089
830 memset (loop, 0, sizeof (struct ev_loop)); 1090 memset (loop, 0, sizeof (struct ev_loop));
831 1091
832 loop_init (EV_A_ methods); 1092 loop_init (EV_A_ flags);
833 1093
834 if (ev_method (EV_A)) 1094 if (ev_backend (EV_A))
835 return loop; 1095 return loop;
836 1096
837 return 0; 1097 return 0;
838} 1098}
839 1099
… …
852 1112
853#endif 1113#endif
854 1114
855#if EV_MULTIPLICITY 1115#if EV_MULTIPLICITY
856struct ev_loop * 1116struct ev_loop *
1117ev_default_loop_init (unsigned int flags)
857#else 1118#else
858int 1119int
1120ev_default_loop (unsigned int flags)
859#endif 1121#endif
860ev_default_loop (int methods)
861{ 1122{
862 if (sigpipe [0] == sigpipe [1]) 1123 if (sigpipe [0] == sigpipe [1])
863 if (pipe (sigpipe)) 1124 if (pipe (sigpipe))
864 return 0; 1125 return 0;
865 1126
866 if (!default_loop) 1127 if (!ev_default_loop_ptr)
867 { 1128 {
868#if EV_MULTIPLICITY 1129#if EV_MULTIPLICITY
869 struct ev_loop *loop = default_loop = &default_loop_struct; 1130 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
870#else 1131#else
871 default_loop = 1; 1132 ev_default_loop_ptr = 1;
872#endif 1133#endif
873 1134
874 loop_init (EV_A_ methods); 1135 loop_init (EV_A_ flags);
875 1136
876 if (ev_method (EV_A)) 1137 if (ev_backend (EV_A))
877 { 1138 {
878 siginit (EV_A); 1139 siginit (EV_A);
879 1140
880#ifndef WIN32 1141#ifndef _WIN32
881 ev_signal_init (&childev, childcb, SIGCHLD); 1142 ev_signal_init (&childev, childcb, SIGCHLD);
882 ev_set_priority (&childev, EV_MAXPRI); 1143 ev_set_priority (&childev, EV_MAXPRI);
883 ev_signal_start (EV_A_ &childev); 1144 ev_signal_start (EV_A_ &childev);
884 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1145 ev_unref (EV_A); /* child watcher should not keep loop alive */
885#endif 1146#endif
886 } 1147 }
887 else 1148 else
888 default_loop = 0; 1149 ev_default_loop_ptr = 0;
889 } 1150 }
890 1151
891 return default_loop; 1152 return ev_default_loop_ptr;
892} 1153}
893 1154
894void 1155void
895ev_default_destroy (void) 1156ev_default_destroy (void)
896{ 1157{
897#if EV_MULTIPLICITY 1158#if EV_MULTIPLICITY
898 struct ev_loop *loop = default_loop; 1159 struct ev_loop *loop = ev_default_loop_ptr;
899#endif 1160#endif
900 1161
901#ifndef WIN32 1162#ifndef _WIN32
902 ev_ref (EV_A); /* child watcher */ 1163 ev_ref (EV_A); /* child watcher */
903 ev_signal_stop (EV_A_ &childev); 1164 ev_signal_stop (EV_A_ &childev);
904#endif 1165#endif
905 1166
906 ev_ref (EV_A); /* signal watcher */ 1167 ev_ref (EV_A); /* signal watcher */
… …
914 1175
915void 1176void
916ev_default_fork (void) 1177ev_default_fork (void)
917{ 1178{
918#if EV_MULTIPLICITY 1179#if EV_MULTIPLICITY
919 struct ev_loop *loop = default_loop; 1180 struct ev_loop *loop = ev_default_loop_ptr;
920#endif 1181#endif
921 1182
922 if (method) 1183 if (backend)
923 postfork = 1; 1184 postfork = 1;
924} 1185}
925 1186
926/*****************************************************************************/ 1187/*****************************************************************************/
927 1188
928static int 1189void
929any_pending (EV_P) 1190ev_invoke (EV_P_ void *w, int revents)
930{ 1191{
931 int pri; 1192 EV_CB_INVOKE ((W)w, revents);
932
933 for (pri = NUMPRI; pri--; )
934 if (pendingcnt [pri])
935 return 1;
936
937 return 0;
938} 1193}
939 1194
940static void 1195void inline_speed
941call_pending (EV_P) 1196call_pending (EV_P)
942{ 1197{
943 int pri; 1198 int pri;
944 1199
945 for (pri = NUMPRI; pri--; ) 1200 for (pri = NUMPRI; pri--; )
946 while (pendingcnt [pri]) 1201 while (pendingcnt [pri])
947 { 1202 {
948 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1203 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
949 1204
950 if (p->w) 1205 if (expect_true (p->w))
951 { 1206 {
1207 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1208
952 p->w->pending = 0; 1209 p->w->pending = 0;
953 EV_CB_INVOKE (p->w, p->events); 1210 EV_CB_INVOKE (p->w, p->events);
954 } 1211 }
955 } 1212 }
956} 1213}
957 1214
958static void 1215void inline_size
959timers_reify (EV_P) 1216timers_reify (EV_P)
960{ 1217{
961 while (timercnt && ((WT)timers [0])->at <= mn_now) 1218 while (timercnt && ((WT)timers [0])->at <= mn_now)
962 { 1219 {
963 struct ev_timer *w = timers [0]; 1220 ev_timer *w = timers [0];
964 1221
965 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1222 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
966 1223
967 /* first reschedule or stop timer */ 1224 /* first reschedule or stop timer */
968 if (w->repeat) 1225 if (w->repeat)
969 { 1226 {
970 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1227 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1228
971 ((WT)w)->at = mn_now + w->repeat; 1229 ((WT)w)->at += w->repeat;
1230 if (((WT)w)->at < mn_now)
1231 ((WT)w)->at = mn_now;
1232
972 downheap ((WT *)timers, timercnt, 0); 1233 downheap ((WT *)timers, timercnt, 0);
973 } 1234 }
974 else 1235 else
975 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1236 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
976 1237
977 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1238 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
978 } 1239 }
979} 1240}
980 1241
981static void 1242#if EV_PERIODIC_ENABLE
1243void inline_size
982periodics_reify (EV_P) 1244periodics_reify (EV_P)
983{ 1245{
984 while (periodiccnt && ((WT)periodics [0])->at <= rt_now) 1246 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
985 { 1247 {
986 struct ev_periodic *w = periodics [0]; 1248 ev_periodic *w = periodics [0];
987 1249
988 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1250 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
989 1251
990 /* first reschedule or stop timer */ 1252 /* first reschedule or stop timer */
991 if (w->reschedule_cb) 1253 if (w->reschedule_cb)
992 { 1254 {
993 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); 1255 ((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)); 1256 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
996 downheap ((WT *)periodics, periodiccnt, 0); 1257 downheap ((WT *)periodics, periodiccnt, 0);
997 } 1258 }
998 else if (w->interval) 1259 else if (w->interval)
999 { 1260 {
1000 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1261 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1262 if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval;
1001 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); 1263 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); 1264 downheap ((WT *)periodics, periodiccnt, 0);
1003 } 1265 }
1004 else 1266 else
1005 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1267 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1006 1268
1007 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1269 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1008 } 1270 }
1009} 1271}
1010 1272
1011static void 1273static void noinline
1012periodics_reschedule (EV_P) 1274periodics_reschedule (EV_P)
1013{ 1275{
1014 int i; 1276 int i;
1015 1277
1016 /* adjust periodics after time jump */ 1278 /* adjust periodics after time jump */
1017 for (i = 0; i < periodiccnt; ++i) 1279 for (i = 0; i < periodiccnt; ++i)
1018 { 1280 {
1019 struct ev_periodic *w = periodics [i]; 1281 ev_periodic *w = periodics [i];
1020 1282
1021 if (w->reschedule_cb) 1283 if (w->reschedule_cb)
1022 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1284 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1023 else if (w->interval) 1285 else if (w->interval)
1024 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1286 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1025 } 1287 }
1026 1288
1027 /* now rebuild the heap */ 1289 /* now rebuild the heap */
1028 for (i = periodiccnt >> 1; i--; ) 1290 for (i = periodiccnt >> 1; i--; )
1029 downheap ((WT *)periodics, periodiccnt, i); 1291 downheap ((WT *)periodics, periodiccnt, i);
1030} 1292}
1293#endif
1031 1294
1032inline int 1295#if EV_IDLE_ENABLE
1033time_update_monotonic (EV_P) 1296void inline_size
1297idle_reify (EV_P)
1034{ 1298{
1035 mn_now = get_clock (); 1299 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 } 1300 {
1042 else 1301 int pri;
1302
1303 for (pri = NUMPRI; pri--; )
1304 {
1305 if (pendingcnt [pri])
1306 break;
1307
1308 if (idlecnt [pri])
1309 {
1310 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1311 break;
1312 }
1313 }
1043 { 1314 }
1044 now_floor = mn_now;
1045 rt_now = ev_time ();
1046 return 1;
1047 }
1048} 1315}
1316#endif
1049 1317
1050static void 1318void inline_speed
1051time_update (EV_P) 1319time_update (EV_P_ ev_tstamp max_block)
1052{ 1320{
1053 int i; 1321 int i;
1054 1322
1055#if EV_USE_MONOTONIC 1323#if EV_USE_MONOTONIC
1056 if (expect_true (have_monotonic)) 1324 if (expect_true (have_monotonic))
1057 { 1325 {
1058 if (time_update_monotonic (EV_A)) 1326 ev_tstamp odiff = rtmn_diff;
1327
1328 mn_now = get_clock ();
1329
1330 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
1331 /* interpolate in the meantime */
1332 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1059 { 1333 {
1060 ev_tstamp odiff = rtmn_diff; 1334 ev_rt_now = rtmn_diff + mn_now;
1335 return;
1336 }
1061 1337
1338 now_floor = mn_now;
1339 ev_rt_now = ev_time ();
1340
1062 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1341 /* loop a few times, before making important decisions.
1342 * on the choice of "4": one iteration isn't enough,
1343 * in case we get preempted during the calls to
1344 * ev_time and get_clock. a second call is almost guaranteed
1345 * to succeed in that case, though. and looping a few more times
1346 * doesn't hurt either as we only do this on time-jumps or
1347 * in the unlikely event of having been preempted here.
1348 */
1349 for (i = 4; --i; )
1063 { 1350 {
1064 rtmn_diff = rt_now - mn_now; 1351 rtmn_diff = ev_rt_now - mn_now;
1065 1352
1066 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1353 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1067 return; /* all is well */ 1354 return; /* all is well */
1068 1355
1069 rt_now = ev_time (); 1356 ev_rt_now = ev_time ();
1070 mn_now = get_clock (); 1357 mn_now = get_clock ();
1071 now_floor = mn_now; 1358 now_floor = mn_now;
1072 } 1359 }
1073 1360
1361# if EV_PERIODIC_ENABLE
1362 periodics_reschedule (EV_A);
1363# endif
1364 /* no timer adjustment, as the monotonic clock doesn't jump */
1365 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1366 }
1367 else
1368#endif
1369 {
1370 ev_rt_now = ev_time ();
1371
1372 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP))
1373 {
1374#if EV_PERIODIC_ENABLE
1074 periodics_reschedule (EV_A); 1375 periodics_reschedule (EV_A);
1075 /* no timer adjustment, as the monotonic clock doesn't jump */ 1376#endif
1076 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1377 /* adjust timers. this is easy, as the offset is the same for all of them */
1378 for (i = 0; i < timercnt; ++i)
1379 ((WT)timers [i])->at += ev_rt_now - mn_now;
1077 } 1380 }
1078 }
1079 else
1080#endif
1081 {
1082 rt_now = ev_time ();
1083 1381
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; 1382 mn_now = ev_rt_now;
1094 } 1383 }
1095} 1384}
1096 1385
1097void 1386void
1098ev_ref (EV_P) 1387ev_ref (EV_P)
… …
1109static int loop_done; 1398static int loop_done;
1110 1399
1111void 1400void
1112ev_loop (EV_P_ int flags) 1401ev_loop (EV_P_ int flags)
1113{ 1402{
1114 double block;
1115 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1403 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1404 ? EVUNLOOP_ONE
1405 : EVUNLOOP_CANCEL;
1406
1407 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1116 1408
1117 do 1409 do
1118 { 1410 {
1411#ifndef _WIN32
1412 if (expect_false (curpid)) /* penalise the forking check even more */
1413 if (expect_false (getpid () != curpid))
1414 {
1415 curpid = getpid ();
1416 postfork = 1;
1417 }
1418#endif
1419
1420#if EV_FORK_ENABLE
1421 /* we might have forked, so queue fork handlers */
1422 if (expect_false (postfork))
1423 if (forkcnt)
1424 {
1425 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1426 call_pending (EV_A);
1427 }
1428#endif
1429
1119 /* queue check watchers (and execute them) */ 1430 /* queue prepare watchers (and execute them) */
1120 if (expect_false (preparecnt)) 1431 if (expect_false (preparecnt))
1121 { 1432 {
1122 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1433 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1123 call_pending (EV_A); 1434 call_pending (EV_A);
1124 } 1435 }
1125 1436
1437 if (expect_false (!activecnt))
1438 break;
1439
1126 /* we might have forked, so reify kernel state if necessary */ 1440 /* we might have forked, so reify kernel state if necessary */
1127 if (expect_false (postfork)) 1441 if (expect_false (postfork))
1128 loop_fork (EV_A); 1442 loop_fork (EV_A);
1129 1443
1130 /* update fd-related kernel structures */ 1444 /* update fd-related kernel structures */
1131 fd_reify (EV_A); 1445 fd_reify (EV_A);
1132 1446
1133 /* calculate blocking time */ 1447 /* calculate blocking time */
1448 {
1449 ev_tstamp block;
1134 1450
1135 /* we only need this for !monotonic clock or timers, but as we basically 1451 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1136 always have timers, we just calculate it always */ 1452 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 1453 else
1141#endif
1142 { 1454 {
1143 rt_now = ev_time (); 1455 /* update time to cancel out callback processing overhead */
1144 mn_now = rt_now; 1456 time_update (EV_A_ 1e100);
1145 }
1146 1457
1147 if (flags & EVLOOP_NONBLOCK || idlecnt)
1148 block = 0.;
1149 else
1150 {
1151 block = MAX_BLOCKTIME; 1458 block = MAX_BLOCKTIME;
1152 1459
1153 if (timercnt) 1460 if (timercnt)
1154 { 1461 {
1155 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1462 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1156 if (block > to) block = to; 1463 if (block > to) block = to;
1157 } 1464 }
1158 1465
1466#if EV_PERIODIC_ENABLE
1159 if (periodiccnt) 1467 if (periodiccnt)
1160 { 1468 {
1161 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; 1469 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1162 if (block > to) block = to; 1470 if (block > to) block = to;
1163 } 1471 }
1472#endif
1164 1473
1165 if (block < 0.) block = 0.; 1474 if (expect_false (block < 0.)) block = 0.;
1166 } 1475 }
1167 1476
1477 ++loop_count;
1168 method_poll (EV_A_ block); 1478 backend_poll (EV_A_ block);
1169 1479
1170 /* update rt_now, do magic */ 1480 /* update ev_rt_now, do magic */
1171 time_update (EV_A); 1481 time_update (EV_A_ block);
1482 }
1172 1483
1173 /* queue pending timers and reschedule them */ 1484 /* queue pending timers and reschedule them */
1174 timers_reify (EV_A); /* relative timers called last */ 1485 timers_reify (EV_A); /* relative timers called last */
1486#if EV_PERIODIC_ENABLE
1175 periodics_reify (EV_A); /* absolute timers called first */ 1487 periodics_reify (EV_A); /* absolute timers called first */
1488#endif
1176 1489
1490#if EV_IDLE_ENABLE
1177 /* queue idle watchers unless io or timers are pending */ 1491 /* queue idle watchers unless other events are pending */
1178 if (idlecnt && !any_pending (EV_A)) 1492 idle_reify (EV_A);
1179 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1493#endif
1180 1494
1181 /* queue check watchers, to be executed first */ 1495 /* queue check watchers, to be executed first */
1182 if (checkcnt) 1496 if (expect_false (checkcnt))
1183 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1497 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1184 1498
1185 call_pending (EV_A); 1499 call_pending (EV_A);
1500
1186 } 1501 }
1187 while (activecnt && !loop_done); 1502 while (expect_true (activecnt && !loop_done));
1188 1503
1189 if (loop_done != 2) 1504 if (loop_done == EVUNLOOP_ONE)
1190 loop_done = 0; 1505 loop_done = EVUNLOOP_CANCEL;
1191} 1506}
1192 1507
1193void 1508void
1194ev_unloop (EV_P_ int how) 1509ev_unloop (EV_P_ int how)
1195{ 1510{
1196 loop_done = how; 1511 loop_done = how;
1197} 1512}
1198 1513
1199/*****************************************************************************/ 1514/*****************************************************************************/
1200 1515
1201inline void 1516void inline_size
1202wlist_add (WL *head, WL elem) 1517wlist_add (WL *head, WL elem)
1203{ 1518{
1204 elem->next = *head; 1519 elem->next = *head;
1205 *head = elem; 1520 *head = elem;
1206} 1521}
1207 1522
1208inline void 1523void inline_size
1209wlist_del (WL *head, WL elem) 1524wlist_del (WL *head, WL elem)
1210{ 1525{
1211 while (*head) 1526 while (*head)
1212 { 1527 {
1213 if (*head == elem) 1528 if (*head == elem)
… …
1218 1533
1219 head = &(*head)->next; 1534 head = &(*head)->next;
1220 } 1535 }
1221} 1536}
1222 1537
1223inline void 1538void inline_speed
1224ev_clear_pending (EV_P_ W w) 1539clear_pending (EV_P_ W w)
1225{ 1540{
1226 if (w->pending) 1541 if (w->pending)
1227 { 1542 {
1228 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1543 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1229 w->pending = 0; 1544 w->pending = 0;
1230 } 1545 }
1231} 1546}
1232 1547
1233inline void 1548int
1549ev_clear_pending (EV_P_ void *w)
1550{
1551 W w_ = (W)w;
1552 int pending = w_->pending;
1553
1554 if (expect_true (pending))
1555 {
1556 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1557 w_->pending = 0;
1558 p->w = 0;
1559 return p->events;
1560 }
1561 else
1562 return 0;
1563}
1564
1565void inline_size
1566pri_adjust (EV_P_ W w)
1567{
1568 int pri = w->priority;
1569 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1570 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1571 w->priority = pri;
1572}
1573
1574void inline_speed
1234ev_start (EV_P_ W w, int active) 1575ev_start (EV_P_ W w, int active)
1235{ 1576{
1236 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1577 pri_adjust (EV_A_ w);
1237 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1238
1239 w->active = active; 1578 w->active = active;
1240 ev_ref (EV_A); 1579 ev_ref (EV_A);
1241} 1580}
1242 1581
1243inline void 1582void inline_size
1244ev_stop (EV_P_ W w) 1583ev_stop (EV_P_ W w)
1245{ 1584{
1246 ev_unref (EV_A); 1585 ev_unref (EV_A);
1247 w->active = 0; 1586 w->active = 0;
1248} 1587}
1249 1588
1250/*****************************************************************************/ 1589/*****************************************************************************/
1251 1590
1252void 1591void noinline
1253ev_io_start (EV_P_ struct ev_io *w) 1592ev_io_start (EV_P_ ev_io *w)
1254{ 1593{
1255 int fd = w->fd; 1594 int fd = w->fd;
1256 1595
1257 if (ev_is_active (w)) 1596 if (expect_false (ev_is_active (w)))
1258 return; 1597 return;
1259 1598
1260 assert (("ev_io_start called with negative fd", fd >= 0)); 1599 assert (("ev_io_start called with negative fd", fd >= 0));
1261 1600
1262 ev_start (EV_A_ (W)w, 1); 1601 ev_start (EV_A_ (W)w, 1);
… …
1264 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1603 wlist_add ((WL *)&anfds[fd].head, (WL)w);
1265 1604
1266 fd_change (EV_A_ fd); 1605 fd_change (EV_A_ fd);
1267} 1606}
1268 1607
1269void 1608void noinline
1270ev_io_stop (EV_P_ struct ev_io *w) 1609ev_io_stop (EV_P_ ev_io *w)
1271{ 1610{
1272 ev_clear_pending (EV_A_ (W)w); 1611 clear_pending (EV_A_ (W)w);
1273 if (!ev_is_active (w)) 1612 if (expect_false (!ev_is_active (w)))
1274 return; 1613 return;
1614
1615 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1275 1616
1276 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1617 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1277 ev_stop (EV_A_ (W)w); 1618 ev_stop (EV_A_ (W)w);
1278 1619
1279 fd_change (EV_A_ w->fd); 1620 fd_change (EV_A_ w->fd);
1280} 1621}
1281 1622
1282void 1623void noinline
1283ev_timer_start (EV_P_ struct ev_timer *w) 1624ev_timer_start (EV_P_ ev_timer *w)
1284{ 1625{
1285 if (ev_is_active (w)) 1626 if (expect_false (ev_is_active (w)))
1286 return; 1627 return;
1287 1628
1288 ((WT)w)->at += mn_now; 1629 ((WT)w)->at += mn_now;
1289 1630
1290 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1631 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1291 1632
1292 ev_start (EV_A_ (W)w, ++timercnt); 1633 ev_start (EV_A_ (W)w, ++timercnt);
1293 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1634 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1294 timers [timercnt - 1] = w; 1635 timers [timercnt - 1] = w;
1295 upheap ((WT *)timers, timercnt - 1); 1636 upheap ((WT *)timers, timercnt - 1);
1296 1637
1638 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1639}
1640
1641void noinline
1642ev_timer_stop (EV_P_ ev_timer *w)
1643{
1644 clear_pending (EV_A_ (W)w);
1645 if (expect_false (!ev_is_active (w)))
1646 return;
1647
1297 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1648 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1298}
1299 1649
1300void 1650 {
1301ev_timer_stop (EV_P_ struct ev_timer *w) 1651 int active = ((W)w)->active;
1302{
1303 ev_clear_pending (EV_A_ (W)w);
1304 if (!ev_is_active (w))
1305 return;
1306 1652
1307 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1653 if (expect_true (--active < --timercnt))
1308
1309 if (((W)w)->active < timercnt--)
1310 { 1654 {
1311 timers [((W)w)->active - 1] = timers [timercnt]; 1655 timers [active] = timers [timercnt];
1312 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1656 adjustheap ((WT *)timers, timercnt, active);
1313 } 1657 }
1658 }
1314 1659
1315 ((WT)w)->at = w->repeat; 1660 ((WT)w)->at -= mn_now;
1316 1661
1317 ev_stop (EV_A_ (W)w); 1662 ev_stop (EV_A_ (W)w);
1318} 1663}
1319 1664
1320void 1665void noinline
1321ev_timer_again (EV_P_ struct ev_timer *w) 1666ev_timer_again (EV_P_ ev_timer *w)
1322{ 1667{
1323 if (ev_is_active (w)) 1668 if (ev_is_active (w))
1324 { 1669 {
1325 if (w->repeat) 1670 if (w->repeat)
1326 { 1671 {
1327 ((WT)w)->at = mn_now + w->repeat; 1672 ((WT)w)->at = mn_now + w->repeat;
1328 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1673 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1329 } 1674 }
1330 else 1675 else
1331 ev_timer_stop (EV_A_ w); 1676 ev_timer_stop (EV_A_ w);
1332 } 1677 }
1333 else if (w->repeat) 1678 else if (w->repeat)
1679 {
1680 w->at = w->repeat;
1334 ev_timer_start (EV_A_ w); 1681 ev_timer_start (EV_A_ w);
1682 }
1335} 1683}
1336 1684
1337void 1685#if EV_PERIODIC_ENABLE
1686void noinline
1338ev_periodic_start (EV_P_ struct ev_periodic *w) 1687ev_periodic_start (EV_P_ ev_periodic *w)
1339{ 1688{
1340 if (ev_is_active (w)) 1689 if (expect_false (ev_is_active (w)))
1341 return; 1690 return;
1342 1691
1343 if (w->reschedule_cb) 1692 if (w->reschedule_cb)
1344 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1693 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1345 else if (w->interval) 1694 else if (w->interval)
1346 { 1695 {
1347 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1696 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 */ 1697 /* 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; 1698 ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
1350 } 1699 }
1700 else
1701 ((WT)w)->at = w->offset;
1351 1702
1352 ev_start (EV_A_ (W)w, ++periodiccnt); 1703 ev_start (EV_A_ (W)w, ++periodiccnt);
1353 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1704 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1354 periodics [periodiccnt - 1] = w; 1705 periodics [periodiccnt - 1] = w;
1355 upheap ((WT *)periodics, periodiccnt - 1); 1706 upheap ((WT *)periodics, periodiccnt - 1);
1356 1707
1708 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1709}
1710
1711void noinline
1712ev_periodic_stop (EV_P_ ev_periodic *w)
1713{
1714 clear_pending (EV_A_ (W)w);
1715 if (expect_false (!ev_is_active (w)))
1716 return;
1717
1357 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1718 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1358}
1359 1719
1360void 1720 {
1361ev_periodic_stop (EV_P_ struct ev_periodic *w) 1721 int active = ((W)w)->active;
1362{
1363 ev_clear_pending (EV_A_ (W)w);
1364 if (!ev_is_active (w))
1365 return;
1366 1722
1367 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1723 if (expect_true (--active < --periodiccnt))
1368
1369 if (((W)w)->active < periodiccnt--)
1370 { 1724 {
1371 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1725 periodics [active] = periodics [periodiccnt];
1372 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1726 adjustheap ((WT *)periodics, periodiccnt, active);
1373 } 1727 }
1728 }
1374 1729
1375 ev_stop (EV_A_ (W)w); 1730 ev_stop (EV_A_ (W)w);
1376} 1731}
1377 1732
1378void 1733void noinline
1379ev_periodic_again (EV_P_ struct ev_periodic *w) 1734ev_periodic_again (EV_P_ ev_periodic *w)
1380{ 1735{
1736 /* TODO: use adjustheap and recalculation */
1381 ev_periodic_stop (EV_A_ w); 1737 ev_periodic_stop (EV_A_ w);
1382 ev_periodic_start (EV_A_ w); 1738 ev_periodic_start (EV_A_ w);
1383} 1739}
1384 1740#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 1741
1451#ifndef SA_RESTART 1742#ifndef SA_RESTART
1452# define SA_RESTART 0 1743# define SA_RESTART 0
1453#endif 1744#endif
1454 1745
1455void 1746void noinline
1456ev_signal_start (EV_P_ struct ev_signal *w) 1747ev_signal_start (EV_P_ ev_signal *w)
1457{ 1748{
1458#if EV_MULTIPLICITY 1749#if EV_MULTIPLICITY
1459 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1750 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1460#endif 1751#endif
1461 if (ev_is_active (w)) 1752 if (expect_false (ev_is_active (w)))
1462 return; 1753 return;
1463 1754
1464 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1755 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1465 1756
1466 ev_start (EV_A_ (W)w, 1); 1757 ev_start (EV_A_ (W)w, 1);
1467 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 1758 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1468 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1759 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1469 1760
1470 if (!((WL)w)->next) 1761 if (!((WL)w)->next)
1471 { 1762 {
1472#if WIN32 1763#if _WIN32
1473 signal (w->signum, sighandler); 1764 signal (w->signum, sighandler);
1474#else 1765#else
1475 struct sigaction sa; 1766 struct sigaction sa;
1476 sa.sa_handler = sighandler; 1767 sa.sa_handler = sighandler;
1477 sigfillset (&sa.sa_mask); 1768 sigfillset (&sa.sa_mask);
… …
1479 sigaction (w->signum, &sa, 0); 1770 sigaction (w->signum, &sa, 0);
1480#endif 1771#endif
1481 } 1772 }
1482} 1773}
1483 1774
1484void 1775void noinline
1485ev_signal_stop (EV_P_ struct ev_signal *w) 1776ev_signal_stop (EV_P_ ev_signal *w)
1486{ 1777{
1487 ev_clear_pending (EV_A_ (W)w); 1778 clear_pending (EV_A_ (W)w);
1488 if (!ev_is_active (w)) 1779 if (expect_false (!ev_is_active (w)))
1489 return; 1780 return;
1490 1781
1491 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1782 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1492 ev_stop (EV_A_ (W)w); 1783 ev_stop (EV_A_ (W)w);
1493 1784
1494 if (!signals [w->signum - 1].head) 1785 if (!signals [w->signum - 1].head)
1495 signal (w->signum, SIG_DFL); 1786 signal (w->signum, SIG_DFL);
1496} 1787}
1497 1788
1498void 1789void
1499ev_child_start (EV_P_ struct ev_child *w) 1790ev_child_start (EV_P_ ev_child *w)
1500{ 1791{
1501#if EV_MULTIPLICITY 1792#if EV_MULTIPLICITY
1502 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1793 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1503#endif 1794#endif
1504 if (ev_is_active (w)) 1795 if (expect_false (ev_is_active (w)))
1505 return; 1796 return;
1506 1797
1507 ev_start (EV_A_ (W)w, 1); 1798 ev_start (EV_A_ (W)w, 1);
1508 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1799 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1509} 1800}
1510 1801
1511void 1802void
1512ev_child_stop (EV_P_ struct ev_child *w) 1803ev_child_stop (EV_P_ ev_child *w)
1513{ 1804{
1514 ev_clear_pending (EV_A_ (W)w); 1805 clear_pending (EV_A_ (W)w);
1515 if (ev_is_active (w)) 1806 if (expect_false (!ev_is_active (w)))
1516 return; 1807 return;
1517 1808
1518 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1809 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1519 ev_stop (EV_A_ (W)w); 1810 ev_stop (EV_A_ (W)w);
1520} 1811}
1521 1812
1813#if EV_STAT_ENABLE
1814
1815# ifdef _WIN32
1816# undef lstat
1817# define lstat(a,b) _stati64 (a,b)
1818# endif
1819
1820#define DEF_STAT_INTERVAL 5.0074891
1821#define MIN_STAT_INTERVAL 0.1074891
1822
1823static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1824
1825#if EV_USE_INOTIFY
1826# define EV_INOTIFY_BUFSIZE 8192
1827
1828static void noinline
1829infy_add (EV_P_ ev_stat *w)
1830{
1831 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);
1832
1833 if (w->wd < 0)
1834 {
1835 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1836
1837 /* monitor some parent directory for speedup hints */
1838 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1839 {
1840 char path [4096];
1841 strcpy (path, w->path);
1842
1843 do
1844 {
1845 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1846 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1847
1848 char *pend = strrchr (path, '/');
1849
1850 if (!pend)
1851 break; /* whoops, no '/', complain to your admin */
1852
1853 *pend = 0;
1854 w->wd = inotify_add_watch (fs_fd, path, mask);
1855 }
1856 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1857 }
1858 }
1859 else
1860 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1861
1862 if (w->wd >= 0)
1863 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1864}
1865
1866static void noinline
1867infy_del (EV_P_ ev_stat *w)
1868{
1869 int slot;
1870 int wd = w->wd;
1871
1872 if (wd < 0)
1873 return;
1874
1875 w->wd = -2;
1876 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1877 wlist_del (&fs_hash [slot].head, (WL)w);
1878
1879 /* remove this watcher, if others are watching it, they will rearm */
1880 inotify_rm_watch (fs_fd, wd);
1881}
1882
1883static void noinline
1884infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1885{
1886 if (slot < 0)
1887 /* overflow, need to check for all hahs slots */
1888 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1889 infy_wd (EV_A_ slot, wd, ev);
1890 else
1891 {
1892 WL w_;
1893
1894 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1895 {
1896 ev_stat *w = (ev_stat *)w_;
1897 w_ = w_->next; /* lets us remove this watcher and all before it */
1898
1899 if (w->wd == wd || wd == -1)
1900 {
1901 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1902 {
1903 w->wd = -1;
1904 infy_add (EV_A_ w); /* re-add, no matter what */
1905 }
1906
1907 stat_timer_cb (EV_A_ &w->timer, 0);
1908 }
1909 }
1910 }
1911}
1912
1913static void
1914infy_cb (EV_P_ ev_io *w, int revents)
1915{
1916 char buf [EV_INOTIFY_BUFSIZE];
1917 struct inotify_event *ev = (struct inotify_event *)buf;
1918 int ofs;
1919 int len = read (fs_fd, buf, sizeof (buf));
1920
1921 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1922 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1923}
1924
1925void inline_size
1926infy_init (EV_P)
1927{
1928 if (fs_fd != -2)
1929 return;
1930
1931 fs_fd = inotify_init ();
1932
1933 if (fs_fd >= 0)
1934 {
1935 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1936 ev_set_priority (&fs_w, EV_MAXPRI);
1937 ev_io_start (EV_A_ &fs_w);
1938 }
1939}
1940
1941void inline_size
1942infy_fork (EV_P)
1943{
1944 int slot;
1945
1946 if (fs_fd < 0)
1947 return;
1948
1949 close (fs_fd);
1950 fs_fd = inotify_init ();
1951
1952 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1953 {
1954 WL w_ = fs_hash [slot].head;
1955 fs_hash [slot].head = 0;
1956
1957 while (w_)
1958 {
1959 ev_stat *w = (ev_stat *)w_;
1960 w_ = w_->next; /* lets us add this watcher */
1961
1962 w->wd = -1;
1963
1964 if (fs_fd >= 0)
1965 infy_add (EV_A_ w); /* re-add, no matter what */
1966 else
1967 ev_timer_start (EV_A_ &w->timer);
1968 }
1969
1970 }
1971}
1972
1973#endif
1974
1975void
1976ev_stat_stat (EV_P_ ev_stat *w)
1977{
1978 if (lstat (w->path, &w->attr) < 0)
1979 w->attr.st_nlink = 0;
1980 else if (!w->attr.st_nlink)
1981 w->attr.st_nlink = 1;
1982}
1983
1984static void noinline
1985stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1986{
1987 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1988
1989 /* we copy this here each the time so that */
1990 /* prev has the old value when the callback gets invoked */
1991 w->prev = w->attr;
1992 ev_stat_stat (EV_A_ w);
1993
1994 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
1995 if (
1996 w->prev.st_dev != w->attr.st_dev
1997 || w->prev.st_ino != w->attr.st_ino
1998 || w->prev.st_mode != w->attr.st_mode
1999 || w->prev.st_nlink != w->attr.st_nlink
2000 || w->prev.st_uid != w->attr.st_uid
2001 || w->prev.st_gid != w->attr.st_gid
2002 || w->prev.st_rdev != w->attr.st_rdev
2003 || w->prev.st_size != w->attr.st_size
2004 || w->prev.st_atime != w->attr.st_atime
2005 || w->prev.st_mtime != w->attr.st_mtime
2006 || w->prev.st_ctime != w->attr.st_ctime
2007 ) {
2008 #if EV_USE_INOTIFY
2009 infy_del (EV_A_ w);
2010 infy_add (EV_A_ w);
2011 ev_stat_stat (EV_A_ w); /* avoid race... */
2012 #endif
2013
2014 ev_feed_event (EV_A_ w, EV_STAT);
2015 }
2016}
2017
2018void
2019ev_stat_start (EV_P_ ev_stat *w)
2020{
2021 if (expect_false (ev_is_active (w)))
2022 return;
2023
2024 /* since we use memcmp, we need to clear any padding data etc. */
2025 memset (&w->prev, 0, sizeof (ev_statdata));
2026 memset (&w->attr, 0, sizeof (ev_statdata));
2027
2028 ev_stat_stat (EV_A_ w);
2029
2030 if (w->interval < MIN_STAT_INTERVAL)
2031 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2032
2033 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2034 ev_set_priority (&w->timer, ev_priority (w));
2035
2036#if EV_USE_INOTIFY
2037 infy_init (EV_A);
2038
2039 if (fs_fd >= 0)
2040 infy_add (EV_A_ w);
2041 else
2042#endif
2043 ev_timer_start (EV_A_ &w->timer);
2044
2045 ev_start (EV_A_ (W)w, 1);
2046}
2047
2048void
2049ev_stat_stop (EV_P_ ev_stat *w)
2050{
2051 clear_pending (EV_A_ (W)w);
2052 if (expect_false (!ev_is_active (w)))
2053 return;
2054
2055#if EV_USE_INOTIFY
2056 infy_del (EV_A_ w);
2057#endif
2058 ev_timer_stop (EV_A_ &w->timer);
2059
2060 ev_stop (EV_A_ (W)w);
2061}
2062#endif
2063
2064#if EV_IDLE_ENABLE
2065void
2066ev_idle_start (EV_P_ ev_idle *w)
2067{
2068 if (expect_false (ev_is_active (w)))
2069 return;
2070
2071 pri_adjust (EV_A_ (W)w);
2072
2073 {
2074 int active = ++idlecnt [ABSPRI (w)];
2075
2076 ++idleall;
2077 ev_start (EV_A_ (W)w, active);
2078
2079 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2080 idles [ABSPRI (w)][active - 1] = w;
2081 }
2082}
2083
2084void
2085ev_idle_stop (EV_P_ ev_idle *w)
2086{
2087 clear_pending (EV_A_ (W)w);
2088 if (expect_false (!ev_is_active (w)))
2089 return;
2090
2091 {
2092 int active = ((W)w)->active;
2093
2094 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2095 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2096
2097 ev_stop (EV_A_ (W)w);
2098 --idleall;
2099 }
2100}
2101#endif
2102
2103void
2104ev_prepare_start (EV_P_ ev_prepare *w)
2105{
2106 if (expect_false (ev_is_active (w)))
2107 return;
2108
2109 ev_start (EV_A_ (W)w, ++preparecnt);
2110 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2111 prepares [preparecnt - 1] = w;
2112}
2113
2114void
2115ev_prepare_stop (EV_P_ ev_prepare *w)
2116{
2117 clear_pending (EV_A_ (W)w);
2118 if (expect_false (!ev_is_active (w)))
2119 return;
2120
2121 {
2122 int active = ((W)w)->active;
2123 prepares [active - 1] = prepares [--preparecnt];
2124 ((W)prepares [active - 1])->active = active;
2125 }
2126
2127 ev_stop (EV_A_ (W)w);
2128}
2129
2130void
2131ev_check_start (EV_P_ ev_check *w)
2132{
2133 if (expect_false (ev_is_active (w)))
2134 return;
2135
2136 ev_start (EV_A_ (W)w, ++checkcnt);
2137 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2138 checks [checkcnt - 1] = w;
2139}
2140
2141void
2142ev_check_stop (EV_P_ ev_check *w)
2143{
2144 clear_pending (EV_A_ (W)w);
2145 if (expect_false (!ev_is_active (w)))
2146 return;
2147
2148 {
2149 int active = ((W)w)->active;
2150 checks [active - 1] = checks [--checkcnt];
2151 ((W)checks [active - 1])->active = active;
2152 }
2153
2154 ev_stop (EV_A_ (W)w);
2155}
2156
2157#if EV_EMBED_ENABLE
2158void noinline
2159ev_embed_sweep (EV_P_ ev_embed *w)
2160{
2161 ev_loop (w->loop, EVLOOP_NONBLOCK);
2162}
2163
2164static void
2165embed_cb (EV_P_ ev_io *io, int revents)
2166{
2167 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2168
2169 if (ev_cb (w))
2170 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2171 else
2172 ev_embed_sweep (loop, w);
2173}
2174
2175void
2176ev_embed_start (EV_P_ ev_embed *w)
2177{
2178 if (expect_false (ev_is_active (w)))
2179 return;
2180
2181 {
2182 struct ev_loop *loop = w->loop;
2183 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2184 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2185 }
2186
2187 ev_set_priority (&w->io, ev_priority (w));
2188 ev_io_start (EV_A_ &w->io);
2189
2190 ev_start (EV_A_ (W)w, 1);
2191}
2192
2193void
2194ev_embed_stop (EV_P_ ev_embed *w)
2195{
2196 clear_pending (EV_A_ (W)w);
2197 if (expect_false (!ev_is_active (w)))
2198 return;
2199
2200 ev_io_stop (EV_A_ &w->io);
2201
2202 ev_stop (EV_A_ (W)w);
2203}
2204#endif
2205
2206#if EV_FORK_ENABLE
2207void
2208ev_fork_start (EV_P_ ev_fork *w)
2209{
2210 if (expect_false (ev_is_active (w)))
2211 return;
2212
2213 ev_start (EV_A_ (W)w, ++forkcnt);
2214 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2215 forks [forkcnt - 1] = w;
2216}
2217
2218void
2219ev_fork_stop (EV_P_ ev_fork *w)
2220{
2221 clear_pending (EV_A_ (W)w);
2222 if (expect_false (!ev_is_active (w)))
2223 return;
2224
2225 {
2226 int active = ((W)w)->active;
2227 forks [active - 1] = forks [--forkcnt];
2228 ((W)forks [active - 1])->active = active;
2229 }
2230
2231 ev_stop (EV_A_ (W)w);
2232}
2233#endif
2234
1522/*****************************************************************************/ 2235/*****************************************************************************/
1523 2236
1524struct ev_once 2237struct ev_once
1525{ 2238{
1526 struct ev_io io; 2239 ev_io io;
1527 struct ev_timer to; 2240 ev_timer to;
1528 void (*cb)(int revents, void *arg); 2241 void (*cb)(int revents, void *arg);
1529 void *arg; 2242 void *arg;
1530}; 2243};
1531 2244
1532static void 2245static void
… …
1541 2254
1542 cb (revents, arg); 2255 cb (revents, arg);
1543} 2256}
1544 2257
1545static void 2258static void
1546once_cb_io (EV_P_ struct ev_io *w, int revents) 2259once_cb_io (EV_P_ ev_io *w, int revents)
1547{ 2260{
1548 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2261 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1549} 2262}
1550 2263
1551static void 2264static void
1552once_cb_to (EV_P_ struct ev_timer *w, int revents) 2265once_cb_to (EV_P_ ev_timer *w, int revents)
1553{ 2266{
1554 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2267 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1555} 2268}
1556 2269
1557void 2270void
1558ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2271ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1559{ 2272{
1560 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2273 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1561 2274
1562 if (!once) 2275 if (expect_false (!once))
2276 {
1563 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2277 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1564 else 2278 return;
1565 { 2279 }
2280
1566 once->cb = cb; 2281 once->cb = cb;
1567 once->arg = arg; 2282 once->arg = arg;
1568 2283
1569 ev_watcher_init (&once->io, once_cb_io); 2284 ev_init (&once->io, once_cb_io);
1570 if (fd >= 0) 2285 if (fd >= 0)
1571 { 2286 {
1572 ev_io_set (&once->io, fd, events); 2287 ev_io_set (&once->io, fd, events);
1573 ev_io_start (EV_A_ &once->io); 2288 ev_io_start (EV_A_ &once->io);
1574 } 2289 }
1575 2290
1576 ev_watcher_init (&once->to, once_cb_to); 2291 ev_init (&once->to, once_cb_to);
1577 if (timeout >= 0.) 2292 if (timeout >= 0.)
1578 { 2293 {
1579 ev_timer_set (&once->to, timeout, 0.); 2294 ev_timer_set (&once->to, timeout, 0.);
1580 ev_timer_start (EV_A_ &once->to); 2295 ev_timer_start (EV_A_ &once->to);
1581 }
1582 } 2296 }
1583} 2297}
1584 2298
2299#ifdef __cplusplus
2300}
2301#endif
2302

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