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Comparing libev/ev.c (file contents):
Revision 1.79 by root, Fri Nov 9 15:15:20 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
123#ifdef EV_H
124# include EV_H
125#else
126# include "ev.h"
127#endif
128
71#ifndef WIN32 129#ifndef _WIN32
72# include <unistd.h>
73# include <sys/time.h> 130# include <sys/time.h>
74# include <sys/wait.h> 131# include <sys/wait.h>
132# include <unistd.h>
133#else
134# define WIN32_LEAN_AND_MEAN
135# include <windows.h>
136# ifndef EV_SELECT_IS_WINSOCKET
137# define EV_SELECT_IS_WINSOCKET 1
75#endif 138# endif
139#endif
140
76/**/ 141/**/
77 142
78#ifndef EV_USE_MONOTONIC 143#ifndef EV_USE_MONOTONIC
79# define EV_USE_MONOTONIC 1 144# define EV_USE_MONOTONIC 0
145#endif
146
147#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0
80#endif 149#endif
81 150
82#ifndef EV_USE_SELECT 151#ifndef EV_USE_SELECT
83# define EV_USE_SELECT 1 152# define EV_USE_SELECT 1
84#endif 153#endif
85 154
86#ifndef EV_USE_POLL 155#ifndef EV_USE_POLL
87# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ 156# ifdef _WIN32
157# define EV_USE_POLL 0
158# else
159# define EV_USE_POLL 1
160# endif
88#endif 161#endif
89 162
90#ifndef EV_USE_EPOLL 163#ifndef EV_USE_EPOLL
91# define EV_USE_EPOLL 0 164# define EV_USE_EPOLL 0
92#endif 165#endif
93 166
94#ifndef EV_USE_KQUEUE 167#ifndef EV_USE_KQUEUE
95# define EV_USE_KQUEUE 0 168# define EV_USE_KQUEUE 0
96#endif 169#endif
97 170
171#ifndef EV_USE_PORT
172# define EV_USE_PORT 0
173#endif
174
98#ifndef EV_USE_WIN32 175#ifndef EV_USE_INOTIFY
99# ifdef WIN32 176# define EV_USE_INOTIFY 0
100# define EV_USE_WIN32 0 /* it does not exist, use select */ 177#endif
101# undef EV_USE_SELECT 178
102# define EV_USE_SELECT 1 179#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1
103# else 182# else
104# define EV_USE_WIN32 0 183# define EV_PID_HASHSIZE 16
105# endif 184# endif
106#endif 185#endif
107 186
108#ifndef EV_USE_REALTIME 187#ifndef EV_INOTIFY_HASHSIZE
109# define EV_USE_REALTIME 1 188# if EV_MINIMAL
189# define EV_INOTIFY_HASHSIZE 1
190# else
191# define EV_INOTIFY_HASHSIZE 16
192# endif
110#endif 193#endif
111 194
112/**/ 195/**/
113 196
114#ifndef CLOCK_MONOTONIC 197#ifndef CLOCK_MONOTONIC
… …
119#ifndef CLOCK_REALTIME 202#ifndef CLOCK_REALTIME
120# undef EV_USE_REALTIME 203# undef EV_USE_REALTIME
121# define EV_USE_REALTIME 0 204# define EV_USE_REALTIME 0
122#endif 205#endif
123 206
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
124/**/ 219/**/
125 220
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
126#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 231#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) */ 232#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
128#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ 233/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
130
131#include "ev.h"
132 234
133#if __GNUC__ >= 3 235#if __GNUC__ >= 3
134# define expect(expr,value) __builtin_expect ((expr),(value)) 236# define expect(expr,value) __builtin_expect ((expr),(value))
135# define inline inline 237# define noinline __attribute__ ((noinline))
136#else 238#else
137# define expect(expr,value) (expr) 239# define expect(expr,value) (expr)
138# define inline static 240# define noinline
241# if __STDC_VERSION__ < 199901L
242# define inline
243# endif
139#endif 244#endif
140 245
141#define expect_false(expr) expect ((expr) != 0, 0) 246#define expect_false(expr) expect ((expr) != 0, 0)
142#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
143 255
144#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 256#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145#define ABSPRI(w) ((w)->priority - EV_MINPRI) 257#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
146 258
259#define EMPTY /* required for microsofts broken pseudo-c compiler */
260#define EMPTY2(a,b) /* used to suppress some warnings */
261
147typedef struct ev_watcher *W; 262typedef ev_watcher *W;
148typedef struct ev_watcher_list *WL; 263typedef ev_watcher_list *WL;
149typedef struct ev_watcher_time *WT; 264typedef ev_watcher_time *WT;
150 265
151static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 266static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152 267
268#ifdef _WIN32
153#include "ev_win32.c" 269# include "ev_win32.c"
270#endif
154 271
155/*****************************************************************************/ 272/*****************************************************************************/
156 273
157static void (*syserr_cb)(const char *msg); 274static void (*syserr_cb)(const char *msg);
158 275
276void
159void ev_set_syserr_cb (void (*cb)(const char *msg)) 277ev_set_syserr_cb (void (*cb)(const char *msg))
160{ 278{
161 syserr_cb = cb; 279 syserr_cb = cb;
162} 280}
163 281
164static void 282static void noinline
165syserr (const char *msg) 283syserr (const char *msg)
166{ 284{
167 if (!msg) 285 if (!msg)
168 msg = "(libev) system error"; 286 msg = "(libev) system error";
169 287
… …
176 } 294 }
177} 295}
178 296
179static void *(*alloc)(void *ptr, long size); 297static void *(*alloc)(void *ptr, long size);
180 298
299void
181void ev_set_allocator (void *(*cb)(void *ptr, long size)) 300ev_set_allocator (void *(*cb)(void *ptr, long size))
182{ 301{
183 alloc = cb; 302 alloc = cb;
184} 303}
185 304
186static void * 305inline_speed void *
187ev_realloc (void *ptr, long size) 306ev_realloc (void *ptr, long size)
188{ 307{
189 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 308 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
190 309
191 if (!ptr && size) 310 if (!ptr && size)
… …
205typedef struct 324typedef struct
206{ 325{
207 WL head; 326 WL head;
208 unsigned char events; 327 unsigned char events;
209 unsigned char reify; 328 unsigned char reify;
329#if EV_SELECT_IS_WINSOCKET
330 SOCKET handle;
331#endif
210} ANFD; 332} ANFD;
211 333
212typedef struct 334typedef struct
213{ 335{
214 W w; 336 W w;
215 int events; 337 int events;
216} ANPENDING; 338} ANPENDING;
217 339
340#if EV_USE_INOTIFY
341typedef struct
342{
343 WL head;
344} ANFS;
345#endif
346
218#if EV_MULTIPLICITY 347#if EV_MULTIPLICITY
219 348
220struct ev_loop 349 struct ev_loop
221{ 350 {
351 ev_tstamp ev_rt_now;
352 #define ev_rt_now ((loop)->ev_rt_now)
222# define VAR(name,decl) decl; 353 #define VAR(name,decl) decl;
223# include "ev_vars.h" 354 #include "ev_vars.h"
224};
225# undef VAR 355 #undef VAR
356 };
226# include "ev_wrap.h" 357 #include "ev_wrap.h"
358
359 static struct ev_loop default_loop_struct;
360 struct ev_loop *ev_default_loop_ptr;
227 361
228#else 362#else
229 363
364 ev_tstamp ev_rt_now;
230# define VAR(name,decl) static decl; 365 #define VAR(name,decl) static decl;
231# include "ev_vars.h" 366 #include "ev_vars.h"
232# undef VAR 367 #undef VAR
368
369 static int ev_default_loop_ptr;
233 370
234#endif 371#endif
235 372
236/*****************************************************************************/ 373/*****************************************************************************/
237 374
238inline ev_tstamp 375ev_tstamp
239ev_time (void) 376ev_time (void)
240{ 377{
241#if EV_USE_REALTIME 378#if EV_USE_REALTIME
242 struct timespec ts; 379 struct timespec ts;
243 clock_gettime (CLOCK_REALTIME, &ts); 380 clock_gettime (CLOCK_REALTIME, &ts);
… …
247 gettimeofday (&tv, 0); 384 gettimeofday (&tv, 0);
248 return tv.tv_sec + tv.tv_usec * 1e-6; 385 return tv.tv_sec + tv.tv_usec * 1e-6;
249#endif 386#endif
250} 387}
251 388
252inline ev_tstamp 389ev_tstamp inline_size
253get_clock (void) 390get_clock (void)
254{ 391{
255#if EV_USE_MONOTONIC 392#if EV_USE_MONOTONIC
256 if (expect_true (have_monotonic)) 393 if (expect_true (have_monotonic))
257 { 394 {
… …
262#endif 399#endif
263 400
264 return ev_time (); 401 return ev_time ();
265} 402}
266 403
404#if EV_MULTIPLICITY
267ev_tstamp 405ev_tstamp
268ev_now (EV_P) 406ev_now (EV_P)
269{ 407{
270 return rt_now; 408 return ev_rt_now;
271} 409}
410#endif
272 411
273#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}
274 439
275#define array_needsize(type,base,cur,cnt,init) \ 440#define array_needsize(type,base,cur,cnt,init) \
276 if (expect_false ((cnt) > cur)) \ 441 if (expect_false ((cnt) > (cur))) \
277 { \ 442 { \
278 int newcnt = cur; \ 443 int ocur_ = (cur); \
279 do \ 444 (base) = (type *)array_realloc \
280 { \ 445 (sizeof (type), (base), &(cur), (cnt)); \
281 newcnt = array_roundsize (type, newcnt << 1); \ 446 init ((base) + (ocur_), (cur) - ocur_); \
282 } \
283 while ((cnt) > newcnt); \
284 \
285 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
286 init (base + cur, newcnt - cur); \
287 cur = newcnt; \
288 } 447 }
289 448
449#if 0
290#define array_slim(type,stem) \ 450#define array_slim(type,stem) \
291 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 451 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
292 { \ 452 { \
293 stem ## max = array_roundsize (stem ## cnt >> 1); \ 453 stem ## max = array_roundsize (stem ## cnt >> 1); \
294 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 454 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
295 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 455 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
296 } 456 }
297 457#endif
298/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
299/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
300#define array_free_microshit(stem) \
301 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
302 458
303#define array_free(stem, idx) \ 459#define array_free(stem, idx) \
304 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;
305 461
306/*****************************************************************************/ 462/*****************************************************************************/
307 463
308static 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
309anfds_init (ANFD *base, int count) 493anfds_init (ANFD *base, int count)
310{ 494{
311 while (count--) 495 while (count--)
312 { 496 {
313 base->head = 0; 497 base->head = 0;
… …
316 500
317 ++base; 501 ++base;
318 } 502 }
319} 503}
320 504
321void 505void inline_speed
322ev_feed_event (EV_P_ void *w, int revents)
323{
324 W w_ = (W)w;
325
326 if (w_->pending)
327 {
328 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
329 return;
330 }
331
332 w_->pending = ++pendingcnt [ABSPRI (w_)];
333 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
334 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
335 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
336}
337
338static void
339queue_events (EV_P_ W *events, int eventcnt, int type)
340{
341 int i;
342
343 for (i = 0; i < eventcnt; ++i)
344 ev_feed_event (EV_A_ events [i], type);
345}
346
347inline void
348fd_event (EV_P_ int fd, int revents) 506fd_event (EV_P_ int fd, int revents)
349{ 507{
350 ANFD *anfd = anfds + fd; 508 ANFD *anfd = anfds + fd;
351 struct ev_io *w; 509 ev_io *w;
352 510
353 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)
354 { 512 {
355 int ev = w->events & revents; 513 int ev = w->events & revents;
356 514
357 if (ev) 515 if (ev)
358 ev_feed_event (EV_A_ (W)w, ev); 516 ev_feed_event (EV_A_ (W)w, ev);
… …
360} 518}
361 519
362void 520void
363ev_feed_fd_event (EV_P_ int fd, int revents) 521ev_feed_fd_event (EV_P_ int fd, int revents)
364{ 522{
523 if (fd >= 0 && fd < anfdmax)
365 fd_event (EV_A_ fd, revents); 524 fd_event (EV_A_ fd, revents);
366} 525}
367 526
368/*****************************************************************************/ 527void inline_size
369
370static void
371fd_reify (EV_P) 528fd_reify (EV_P)
372{ 529{
373 int i; 530 int i;
374 531
375 for (i = 0; i < fdchangecnt; ++i) 532 for (i = 0; i < fdchangecnt; ++i)
376 { 533 {
377 int fd = fdchanges [i]; 534 int fd = fdchanges [i];
378 ANFD *anfd = anfds + fd; 535 ANFD *anfd = anfds + fd;
379 struct ev_io *w; 536 ev_io *w;
380 537
381 int events = 0; 538 int events = 0;
382 539
383 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)
384 events |= w->events; 541 events |= w->events;
385 542
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
386 anfd->reify = 0; 552 anfd->reify = 0;
387 553
388 method_modify (EV_A_ fd, anfd->events, events); 554 backend_modify (EV_A_ fd, anfd->events, events);
389 anfd->events = events; 555 anfd->events = events;
390 } 556 }
391 557
392 fdchangecnt = 0; 558 fdchangecnt = 0;
393} 559}
394 560
395static void 561void inline_size
396fd_change (EV_P_ int fd) 562fd_change (EV_P_ int fd)
397{ 563{
398 if (anfds [fd].reify) 564 if (expect_false (anfds [fd].reify))
399 return; 565 return;
400 566
401 anfds [fd].reify = 1; 567 anfds [fd].reify = 1;
402 568
403 ++fdchangecnt; 569 ++fdchangecnt;
404 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 570 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
405 fdchanges [fdchangecnt - 1] = fd; 571 fdchanges [fdchangecnt - 1] = fd;
406} 572}
407 573
408static void 574void inline_speed
409fd_kill (EV_P_ int fd) 575fd_kill (EV_P_ int fd)
410{ 576{
411 struct ev_io *w; 577 ev_io *w;
412 578
413 while ((w = (struct ev_io *)anfds [fd].head)) 579 while ((w = (ev_io *)anfds [fd].head))
414 { 580 {
415 ev_io_stop (EV_A_ w); 581 ev_io_stop (EV_A_ w);
416 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);
417 } 583 }
418} 584}
419 585
420static int 586int inline_size
421fd_valid (int fd) 587fd_valid (int fd)
422{ 588{
423#ifdef WIN32 589#ifdef _WIN32
424 return !!win32_get_osfhandle (fd); 590 return _get_osfhandle (fd) != -1;
425#else 591#else
426 return fcntl (fd, F_GETFD) != -1; 592 return fcntl (fd, F_GETFD) != -1;
427#endif 593#endif
428} 594}
429 595
430/* called on EBADF to verify fds */ 596/* called on EBADF to verify fds */
431static void 597static void noinline
432fd_ebadf (EV_P) 598fd_ebadf (EV_P)
433{ 599{
434 int fd; 600 int fd;
435 601
436 for (fd = 0; fd < anfdmax; ++fd) 602 for (fd = 0; fd < anfdmax; ++fd)
… …
438 if (!fd_valid (fd) == -1 && errno == EBADF) 604 if (!fd_valid (fd) == -1 && errno == EBADF)
439 fd_kill (EV_A_ fd); 605 fd_kill (EV_A_ fd);
440} 606}
441 607
442/* 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 */
443static void 609static void noinline
444fd_enomem (EV_P) 610fd_enomem (EV_P)
445{ 611{
446 int fd; 612 int fd;
447 613
448 for (fd = anfdmax; fd--; ) 614 for (fd = anfdmax; fd--; )
… …
451 fd_kill (EV_A_ fd); 617 fd_kill (EV_A_ fd);
452 return; 618 return;
453 } 619 }
454} 620}
455 621
456/* 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 */
457static void 623static void noinline
458fd_rearm_all (EV_P) 624fd_rearm_all (EV_P)
459{ 625{
460 int fd; 626 int fd;
461 627
462 /* this should be highly optimised to not do anything but set a flag */
463 for (fd = 0; fd < anfdmax; ++fd) 628 for (fd = 0; fd < anfdmax; ++fd)
464 if (anfds [fd].events) 629 if (anfds [fd].events)
465 { 630 {
466 anfds [fd].events = 0; 631 anfds [fd].events = 0;
467 fd_change (EV_A_ fd); 632 fd_change (EV_A_ fd);
468 } 633 }
469} 634}
470 635
471/*****************************************************************************/ 636/*****************************************************************************/
472 637
473static void 638void inline_speed
474upheap (WT *heap, int k) 639upheap (WT *heap, int k)
475{ 640{
476 WT w = heap [k]; 641 WT w = heap [k];
477 642
478 while (k && heap [k >> 1]->at > w->at) 643 while (k)
479 { 644 {
645 int p = (k - 1) >> 1;
646
647 if (heap [p]->at <= w->at)
648 break;
649
480 heap [k] = heap [k >> 1]; 650 heap [k] = heap [p];
481 ((W)heap [k])->active = k + 1; 651 ((W)heap [k])->active = k + 1;
482 k >>= 1; 652 k = p;
483 } 653 }
484 654
485 heap [k] = w; 655 heap [k] = w;
486 ((W)heap [k])->active = k + 1; 656 ((W)heap [k])->active = k + 1;
487 657
488} 658}
489 659
490static void 660void inline_speed
491downheap (WT *heap, int N, int k) 661downheap (WT *heap, int N, int k)
492{ 662{
493 WT w = heap [k]; 663 WT w = heap [k];
494 664
495 while (k < (N >> 1)) 665 for (;;)
496 { 666 {
497 int j = k << 1; 667 int c = (k << 1) + 1;
498 668
499 if (j + 1 < N && heap [j]->at > heap [j + 1]->at) 669 if (c >= N)
500 ++j;
501
502 if (w->at <= heap [j]->at)
503 break; 670 break;
504 671
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
505 heap [k] = heap [j]; 678 heap [k] = heap [c];
506 ((W)heap [k])->active = k + 1; 679 ((W)heap [k])->active = k + 1;
680
507 k = j; 681 k = c;
508 } 682 }
509 683
510 heap [k] = w; 684 heap [k] = w;
511 ((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);
512} 693}
513 694
514/*****************************************************************************/ 695/*****************************************************************************/
515 696
516typedef struct 697typedef struct
… …
522static ANSIG *signals; 703static ANSIG *signals;
523static int signalmax; 704static int signalmax;
524 705
525static int sigpipe [2]; 706static int sigpipe [2];
526static sig_atomic_t volatile gotsig; 707static sig_atomic_t volatile gotsig;
527static struct ev_io sigev; 708static ev_io sigev;
528 709
529static void 710void inline_size
530signals_init (ANSIG *base, int count) 711signals_init (ANSIG *base, int count)
531{ 712{
532 while (count--) 713 while (count--)
533 { 714 {
534 base->head = 0; 715 base->head = 0;
… …
539} 720}
540 721
541static void 722static void
542sighandler (int signum) 723sighandler (int signum)
543{ 724{
544#if WIN32 725#if _WIN32
545 signal (signum, sighandler); 726 signal (signum, sighandler);
546#endif 727#endif
547 728
548 signals [signum - 1].gotsig = 1; 729 signals [signum - 1].gotsig = 1;
549 730
550 if (!gotsig) 731 if (!gotsig)
551 { 732 {
552 int old_errno = errno; 733 int old_errno = errno;
553 gotsig = 1; 734 gotsig = 1;
554#ifdef WIN32
555 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
556#else
557 write (sigpipe [1], &signum, 1); 735 write (sigpipe [1], &signum, 1);
558#endif
559 errno = old_errno; 736 errno = old_errno;
560 } 737 }
561} 738}
562 739
563void 740void noinline
564ev_feed_signal_event (EV_P_ int signum) 741ev_feed_signal_event (EV_P_ int signum)
565{ 742{
743 WL w;
744
566#if EV_MULTIPLICITY 745#if EV_MULTIPLICITY
567 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));
568#endif 747#endif
569 748
570 --signum; 749 --signum;
571 750
572 if (signum < 0 || signum >= signalmax) 751 if (signum < 0 || signum >= signalmax)
… …
577 for (w = signals [signum].head; w; w = w->next) 756 for (w = signals [signum].head; w; w = w->next)
578 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 757 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
579} 758}
580 759
581static void 760static void
582sigcb (EV_P_ struct ev_io *iow, int revents) 761sigcb (EV_P_ ev_io *iow, int revents)
583{ 762{
584 WL w;
585 int signum; 763 int signum;
586 764
587#ifdef WIN32
588 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
589#else
590 read (sigpipe [0], &revents, 1); 765 read (sigpipe [0], &revents, 1);
591#endif
592 gotsig = 0; 766 gotsig = 0;
593 767
594 for (signum = signalmax; signum--; ) 768 for (signum = signalmax; signum--; )
595 if (signals [signum].gotsig) 769 if (signals [signum].gotsig)
596 sigevent (EV_A_ signum + 1); 770 ev_feed_signal_event (EV_A_ signum + 1);
597} 771}
598 772
599static 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
600siginit (EV_P) 786siginit (EV_P)
601{ 787{
602#ifndef WIN32 788 fd_intern (sigpipe [0]);
603 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 789 fd_intern (sigpipe [1]);
604 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
605
606 /* rather than sort out wether we really need nb, set it */
607 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
608 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
609#endif
610 790
611 ev_io_set (&sigev, sigpipe [0], EV_READ); 791 ev_io_set (&sigev, sigpipe [0], EV_READ);
612 ev_io_start (EV_A_ &sigev); 792 ev_io_start (EV_A_ &sigev);
613 ev_unref (EV_A); /* child watcher should not keep loop alive */ 793 ev_unref (EV_A); /* child watcher should not keep loop alive */
614} 794}
615 795
616/*****************************************************************************/ 796/*****************************************************************************/
617 797
618static struct ev_child *childs [PID_HASHSIZE]; 798static ev_child *childs [EV_PID_HASHSIZE];
619 799
620#ifndef WIN32 800#ifndef _WIN32
621 801
622static 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}
623 818
624#ifndef WCONTINUED 819#ifndef WCONTINUED
625# define WCONTINUED 0 820# define WCONTINUED 0
626#endif 821#endif
627 822
628static void 823static void
629child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
630{
631 struct ev_child *w;
632
633 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
634 if (w->pid == pid || !w->pid)
635 {
636 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
637 w->rpid = pid;
638 w->rstatus = status;
639 ev_feed_event (EV_A_ (W)w, EV_CHILD);
640 }
641}
642
643static void
644childcb (EV_P_ struct ev_signal *sw, int revents) 824childcb (EV_P_ ev_signal *sw, int revents)
645{ 825{
646 int pid, status; 826 int pid, status;
647 827
828 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
648 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 829 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
649 { 830 if (!WCONTINUED
831 || errno != EINVAL
832 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
833 return;
834
650 /* 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 */
651 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 837 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
652 838
653 child_reap (EV_A_ sw, pid, pid, status); 839 child_reap (EV_A_ sw, pid, pid, status);
840 if (EV_PID_HASHSIZE > 1)
654 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 */
655 }
656} 842}
657 843
658#endif 844#endif
659 845
660/*****************************************************************************/ 846/*****************************************************************************/
661 847
848#if EV_USE_PORT
849# include "ev_port.c"
850#endif
662#if EV_USE_KQUEUE 851#if EV_USE_KQUEUE
663# include "ev_kqueue.c" 852# include "ev_kqueue.c"
664#endif 853#endif
665#if EV_USE_EPOLL 854#if EV_USE_EPOLL
666# include "ev_epoll.c" 855# include "ev_epoll.c"
… …
683{ 872{
684 return EV_VERSION_MINOR; 873 return EV_VERSION_MINOR;
685} 874}
686 875
687/* 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 */
688static int 877int inline_size
689enable_secure (void) 878enable_secure (void)
690{ 879{
691#ifdef WIN32 880#ifdef _WIN32
692 return 0; 881 return 0;
693#else 882#else
694 return getuid () != geteuid () 883 return getuid () != geteuid ()
695 || getgid () != getegid (); 884 || getgid () != getegid ();
696#endif 885#endif
697} 886}
698 887
699int 888unsigned int
700ev_method (EV_P) 889ev_supported_backends (void)
701{ 890{
702 return method; 891 unsigned int flags = 0;
703}
704 892
705static void 893 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
706loop_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)
707{ 904{
708 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)
709 { 944 {
710#if EV_USE_MONOTONIC 945#if EV_USE_MONOTONIC
711 { 946 {
712 struct timespec ts; 947 struct timespec ts;
713 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 948 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
714 have_monotonic = 1; 949 have_monotonic = 1;
715 } 950 }
716#endif 951#endif
717 952
718 rt_now = ev_time (); 953 ev_rt_now = ev_time ();
719 mn_now = get_clock (); 954 mn_now = get_clock ();
720 now_floor = mn_now; 955 now_floor = mn_now;
721 rtmn_diff = rt_now - mn_now; 956 rtmn_diff = ev_rt_now - mn_now;
722 957
723 if (methods == EVMETHOD_AUTO) 958 /* pid check not overridable via env */
724 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"))
725 methods = atoi (getenv ("LIBEV_METHODS")); 967 flags = atoi (getenv ("LIBEV_FLAGS"));
726 else
727 methods = EVMETHOD_ANY;
728 968
729 method = 0; 969 if (!(flags & 0x0000ffffUL))
970 flags |= ev_recommended_backends ();
971
972 backend = 0;
973 backend_fd = -1;
730#if EV_USE_WIN32 974#if EV_USE_INOTIFY
731 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);
732#endif 980#endif
733#if EV_USE_KQUEUE 981#if EV_USE_KQUEUE
734 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 982 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
735#endif 983#endif
736#if EV_USE_EPOLL 984#if EV_USE_EPOLL
737 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 985 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
738#endif 986#endif
739#if EV_USE_POLL 987#if EV_USE_POLL
740 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 988 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
741#endif 989#endif
742#if EV_USE_SELECT 990#if EV_USE_SELECT
743 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 991 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
744#endif 992#endif
745 993
746 ev_watcher_init (&sigev, sigcb); 994 ev_init (&sigev, sigcb);
747 ev_set_priority (&sigev, EV_MAXPRI); 995 ev_set_priority (&sigev, EV_MAXPRI);
748 } 996 }
749} 997}
750 998
751void 999static void noinline
752loop_destroy (EV_P) 1000loop_destroy (EV_P)
753{ 1001{
754 int i; 1002 int i;
755 1003
756#if EV_USE_WIN32 1004#if EV_USE_INOTIFY
757 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);
758#endif 1014#endif
759#if EV_USE_KQUEUE 1015#if EV_USE_KQUEUE
760 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 1016 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
761#endif 1017#endif
762#if EV_USE_EPOLL 1018#if EV_USE_EPOLL
763 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 1019 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
764#endif 1020#endif
765#if EV_USE_POLL 1021#if EV_USE_POLL
766 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1022 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
767#endif 1023#endif
768#if EV_USE_SELECT 1024#if EV_USE_SELECT
769 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1025 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
770#endif 1026#endif
771 1027
772 for (i = NUMPRI; i--; ) 1028 for (i = NUMPRI; i--; )
1029 {
773 array_free (pending, [i]); 1030 array_free (pending, [i]);
1031#if EV_IDLE_ENABLE
1032 array_free (idle, [i]);
1033#endif
1034 }
774 1035
775 /* have to use the microsoft-never-gets-it-right macro */ 1036 /* have to use the microsoft-never-gets-it-right macro */
776 array_free_microshit (fdchange); 1037 array_free (fdchange, EMPTY);
777 array_free_microshit (timer); 1038 array_free (timer, EMPTY);
778 array_free_microshit (periodic); 1039#if EV_PERIODIC_ENABLE
779 array_free_microshit (idle); 1040 array_free (periodic, EMPTY);
780 array_free_microshit (prepare); 1041#endif
781 array_free_microshit (check); 1042 array_free (prepare, EMPTY);
1043 array_free (check, EMPTY);
782 1044
783 method = 0; 1045 backend = 0;
784} 1046}
785 1047
786static void 1048void inline_size infy_fork (EV_P);
1049
1050void inline_size
787loop_fork (EV_P) 1051loop_fork (EV_P)
788{ 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
789#if EV_USE_EPOLL 1059#if EV_USE_EPOLL
790 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1060 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
791#endif 1061#endif
792#if EV_USE_KQUEUE 1062#if EV_USE_INOTIFY
793 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1063 infy_fork (EV_A);
794#endif 1064#endif
795 1065
796 if (ev_is_active (&sigev)) 1066 if (ev_is_active (&sigev))
797 { 1067 {
798 /* default loop */ 1068 /* default loop */
… …
811 postfork = 0; 1081 postfork = 0;
812} 1082}
813 1083
814#if EV_MULTIPLICITY 1084#if EV_MULTIPLICITY
815struct ev_loop * 1085struct ev_loop *
816ev_loop_new (int methods) 1086ev_loop_new (unsigned int flags)
817{ 1087{
818 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));
819 1089
820 memset (loop, 0, sizeof (struct ev_loop)); 1090 memset (loop, 0, sizeof (struct ev_loop));
821 1091
822 loop_init (EV_A_ methods); 1092 loop_init (EV_A_ flags);
823 1093
824 if (ev_method (EV_A)) 1094 if (ev_backend (EV_A))
825 return loop; 1095 return loop;
826 1096
827 return 0; 1097 return 0;
828} 1098}
829 1099
… …
841} 1111}
842 1112
843#endif 1113#endif
844 1114
845#if EV_MULTIPLICITY 1115#if EV_MULTIPLICITY
846struct ev_loop default_loop_struct;
847static struct ev_loop *default_loop;
848
849struct ev_loop * 1116struct ev_loop *
1117ev_default_loop_init (unsigned int flags)
850#else 1118#else
851static int default_loop;
852
853int 1119int
1120ev_default_loop (unsigned int flags)
854#endif 1121#endif
855ev_default_loop (int methods)
856{ 1122{
857 if (sigpipe [0] == sigpipe [1]) 1123 if (sigpipe [0] == sigpipe [1])
858 if (pipe (sigpipe)) 1124 if (pipe (sigpipe))
859 return 0; 1125 return 0;
860 1126
861 if (!default_loop) 1127 if (!ev_default_loop_ptr)
862 { 1128 {
863#if EV_MULTIPLICITY 1129#if EV_MULTIPLICITY
864 struct ev_loop *loop = default_loop = &default_loop_struct; 1130 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
865#else 1131#else
866 default_loop = 1; 1132 ev_default_loop_ptr = 1;
867#endif 1133#endif
868 1134
869 loop_init (EV_A_ methods); 1135 loop_init (EV_A_ flags);
870 1136
871 if (ev_method (EV_A)) 1137 if (ev_backend (EV_A))
872 { 1138 {
873 siginit (EV_A); 1139 siginit (EV_A);
874 1140
875#ifndef WIN32 1141#ifndef _WIN32
876 ev_signal_init (&childev, childcb, SIGCHLD); 1142 ev_signal_init (&childev, childcb, SIGCHLD);
877 ev_set_priority (&childev, EV_MAXPRI); 1143 ev_set_priority (&childev, EV_MAXPRI);
878 ev_signal_start (EV_A_ &childev); 1144 ev_signal_start (EV_A_ &childev);
879 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1145 ev_unref (EV_A); /* child watcher should not keep loop alive */
880#endif 1146#endif
881 } 1147 }
882 else 1148 else
883 default_loop = 0; 1149 ev_default_loop_ptr = 0;
884 } 1150 }
885 1151
886 return default_loop; 1152 return ev_default_loop_ptr;
887} 1153}
888 1154
889void 1155void
890ev_default_destroy (void) 1156ev_default_destroy (void)
891{ 1157{
892#if EV_MULTIPLICITY 1158#if EV_MULTIPLICITY
893 struct ev_loop *loop = default_loop; 1159 struct ev_loop *loop = ev_default_loop_ptr;
894#endif 1160#endif
895 1161
896#ifndef WIN32 1162#ifndef _WIN32
897 ev_ref (EV_A); /* child watcher */ 1163 ev_ref (EV_A); /* child watcher */
898 ev_signal_stop (EV_A_ &childev); 1164 ev_signal_stop (EV_A_ &childev);
899#endif 1165#endif
900 1166
901 ev_ref (EV_A); /* signal watcher */ 1167 ev_ref (EV_A); /* signal watcher */
… …
909 1175
910void 1176void
911ev_default_fork (void) 1177ev_default_fork (void)
912{ 1178{
913#if EV_MULTIPLICITY 1179#if EV_MULTIPLICITY
914 struct ev_loop *loop = default_loop; 1180 struct ev_loop *loop = ev_default_loop_ptr;
915#endif 1181#endif
916 1182
917 if (method) 1183 if (backend)
918 postfork = 1; 1184 postfork = 1;
919} 1185}
920 1186
921/*****************************************************************************/ 1187/*****************************************************************************/
922 1188
923static int 1189void
924any_pending (EV_P) 1190ev_invoke (EV_P_ void *w, int revents)
925{ 1191{
926 int pri; 1192 EV_CB_INVOKE ((W)w, revents);
927
928 for (pri = NUMPRI; pri--; )
929 if (pendingcnt [pri])
930 return 1;
931
932 return 0;
933} 1193}
934 1194
935static void 1195void inline_speed
936call_pending (EV_P) 1196call_pending (EV_P)
937{ 1197{
938 int pri; 1198 int pri;
939 1199
940 for (pri = NUMPRI; pri--; ) 1200 for (pri = NUMPRI; pri--; )
941 while (pendingcnt [pri]) 1201 while (pendingcnt [pri])
942 { 1202 {
943 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1203 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
944 1204
945 if (p->w) 1205 if (expect_true (p->w))
946 { 1206 {
1207 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1208
947 p->w->pending = 0; 1209 p->w->pending = 0;
948 p->w->cb (EV_A_ p->w, p->events); 1210 EV_CB_INVOKE (p->w, p->events);
949 } 1211 }
950 } 1212 }
951} 1213}
952 1214
953static void 1215void inline_size
954timers_reify (EV_P) 1216timers_reify (EV_P)
955{ 1217{
956 while (timercnt && ((WT)timers [0])->at <= mn_now) 1218 while (timercnt && ((WT)timers [0])->at <= mn_now)
957 { 1219 {
958 struct ev_timer *w = timers [0]; 1220 ev_timer *w = timers [0];
959 1221
960 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1222 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
961 1223
962 /* first reschedule or stop timer */ 1224 /* first reschedule or stop timer */
963 if (w->repeat) 1225 if (w->repeat)
964 { 1226 {
965 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
966 ((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
967 downheap ((WT *)timers, timercnt, 0); 1233 downheap ((WT *)timers, timercnt, 0);
968 } 1234 }
969 else 1235 else
970 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1236 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
971 1237
972 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1238 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
973 } 1239 }
974} 1240}
975 1241
976static void 1242#if EV_PERIODIC_ENABLE
1243void inline_size
977periodics_reify (EV_P) 1244periodics_reify (EV_P)
978{ 1245{
979 while (periodiccnt && ((WT)periodics [0])->at <= rt_now) 1246 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
980 { 1247 {
981 struct ev_periodic *w = periodics [0]; 1248 ev_periodic *w = periodics [0];
982 1249
983 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1250 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
984 1251
985 /* first reschedule or stop timer */ 1252 /* first reschedule or stop timer */
986 if (w->reschedule_cb) 1253 if (w->reschedule_cb)
987 { 1254 {
988 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);
989
990 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));
991 downheap ((WT *)periodics, periodiccnt, 0); 1257 downheap ((WT *)periodics, periodiccnt, 0);
992 } 1258 }
993 else if (w->interval) 1259 else if (w->interval)
994 { 1260 {
995 ((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;
996 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));
997 downheap ((WT *)periodics, periodiccnt, 0); 1264 downheap ((WT *)periodics, periodiccnt, 0);
998 } 1265 }
999 else 1266 else
1000 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1267 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1001 1268
1002 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1269 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1003 } 1270 }
1004} 1271}
1005 1272
1006static void 1273static void noinline
1007periodics_reschedule (EV_P) 1274periodics_reschedule (EV_P)
1008{ 1275{
1009 int i; 1276 int i;
1010 1277
1011 /* adjust periodics after time jump */ 1278 /* adjust periodics after time jump */
1012 for (i = 0; i < periodiccnt; ++i) 1279 for (i = 0; i < periodiccnt; ++i)
1013 { 1280 {
1014 struct ev_periodic *w = periodics [i]; 1281 ev_periodic *w = periodics [i];
1015 1282
1016 if (w->reschedule_cb) 1283 if (w->reschedule_cb)
1017 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1284 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1018 else if (w->interval) 1285 else if (w->interval)
1019 ((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;
1020 } 1287 }
1021 1288
1022 /* now rebuild the heap */ 1289 /* now rebuild the heap */
1023 for (i = periodiccnt >> 1; i--; ) 1290 for (i = periodiccnt >> 1; i--; )
1024 downheap ((WT *)periodics, periodiccnt, i); 1291 downheap ((WT *)periodics, periodiccnt, i);
1025} 1292}
1293#endif
1026 1294
1027inline int 1295#if EV_IDLE_ENABLE
1028time_update_monotonic (EV_P) 1296void inline_size
1297idle_reify (EV_P)
1029{ 1298{
1030 mn_now = get_clock (); 1299 if (expect_false (idleall))
1031
1032 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1033 {
1034 rt_now = rtmn_diff + mn_now;
1035 return 0;
1036 } 1300 {
1037 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 }
1038 { 1314 }
1039 now_floor = mn_now;
1040 rt_now = ev_time ();
1041 return 1;
1042 }
1043} 1315}
1316#endif
1044 1317
1045static void 1318void inline_speed
1046time_update (EV_P) 1319time_update (EV_P_ ev_tstamp max_block)
1047{ 1320{
1048 int i; 1321 int i;
1049 1322
1050#if EV_USE_MONOTONIC 1323#if EV_USE_MONOTONIC
1051 if (expect_true (have_monotonic)) 1324 if (expect_true (have_monotonic))
1052 { 1325 {
1053 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))
1054 { 1333 {
1055 ev_tstamp odiff = rtmn_diff; 1334 ev_rt_now = rtmn_diff + mn_now;
1335 return;
1336 }
1056 1337
1338 now_floor = mn_now;
1339 ev_rt_now = ev_time ();
1340
1057 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; )
1058 { 1350 {
1059 rtmn_diff = rt_now - mn_now; 1351 rtmn_diff = ev_rt_now - mn_now;
1060 1352
1061 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1353 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1062 return; /* all is well */ 1354 return; /* all is well */
1063 1355
1064 rt_now = ev_time (); 1356 ev_rt_now = ev_time ();
1065 mn_now = get_clock (); 1357 mn_now = get_clock ();
1066 now_floor = mn_now; 1358 now_floor = mn_now;
1067 } 1359 }
1068 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
1069 periodics_reschedule (EV_A); 1375 periodics_reschedule (EV_A);
1070 /* no timer adjustment, as the monotonic clock doesn't jump */ 1376#endif
1071 /* 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;
1072 } 1380 }
1073 }
1074 else
1075#endif
1076 {
1077 rt_now = ev_time ();
1078 1381
1079 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1080 {
1081 periodics_reschedule (EV_A);
1082
1083 /* adjust timers. this is easy, as the offset is the same for all */
1084 for (i = 0; i < timercnt; ++i)
1085 ((WT)timers [i])->at += rt_now - mn_now;
1086 }
1087
1088 mn_now = rt_now; 1382 mn_now = ev_rt_now;
1089 } 1383 }
1090} 1384}
1091 1385
1092void 1386void
1093ev_ref (EV_P) 1387ev_ref (EV_P)
… …
1104static int loop_done; 1398static int loop_done;
1105 1399
1106void 1400void
1107ev_loop (EV_P_ int flags) 1401ev_loop (EV_P_ int flags)
1108{ 1402{
1109 double block;
1110 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 */
1111 1408
1112 do 1409 do
1113 { 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
1114 /* queue check watchers (and execute them) */ 1430 /* queue prepare watchers (and execute them) */
1115 if (expect_false (preparecnt)) 1431 if (expect_false (preparecnt))
1116 { 1432 {
1117 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1433 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1118 call_pending (EV_A); 1434 call_pending (EV_A);
1119 } 1435 }
1120 1436
1437 if (expect_false (!activecnt))
1438 break;
1439
1121 /* we might have forked, so reify kernel state if necessary */ 1440 /* we might have forked, so reify kernel state if necessary */
1122 if (expect_false (postfork)) 1441 if (expect_false (postfork))
1123 loop_fork (EV_A); 1442 loop_fork (EV_A);
1124 1443
1125 /* update fd-related kernel structures */ 1444 /* update fd-related kernel structures */
1126 fd_reify (EV_A); 1445 fd_reify (EV_A);
1127 1446
1128 /* calculate blocking time */ 1447 /* calculate blocking time */
1448 {
1449 ev_tstamp block;
1129 1450
1130 /* we only need this for !monotonic clock or timers, but as we basically 1451 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1131 always have timers, we just calculate it always */ 1452 block = 0.; /* do not block at all */
1132#if EV_USE_MONOTONIC
1133 if (expect_true (have_monotonic))
1134 time_update_monotonic (EV_A);
1135 else 1453 else
1136#endif
1137 { 1454 {
1138 rt_now = ev_time (); 1455 /* update time to cancel out callback processing overhead */
1139 mn_now = rt_now; 1456 time_update (EV_A_ 1e100);
1140 }
1141 1457
1142 if (flags & EVLOOP_NONBLOCK || idlecnt)
1143 block = 0.;
1144 else
1145 {
1146 block = MAX_BLOCKTIME; 1458 block = MAX_BLOCKTIME;
1147 1459
1148 if (timercnt) 1460 if (timercnt)
1149 { 1461 {
1150 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1462 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1151 if (block > to) block = to; 1463 if (block > to) block = to;
1152 } 1464 }
1153 1465
1466#if EV_PERIODIC_ENABLE
1154 if (periodiccnt) 1467 if (periodiccnt)
1155 { 1468 {
1156 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; 1469 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1157 if (block > to) block = to; 1470 if (block > to) block = to;
1158 } 1471 }
1472#endif
1159 1473
1160 if (block < 0.) block = 0.; 1474 if (expect_false (block < 0.)) block = 0.;
1161 } 1475 }
1162 1476
1477 ++loop_count;
1163 method_poll (EV_A_ block); 1478 backend_poll (EV_A_ block);
1164 1479
1165 /* update rt_now, do magic */ 1480 /* update ev_rt_now, do magic */
1166 time_update (EV_A); 1481 time_update (EV_A_ block);
1482 }
1167 1483
1168 /* queue pending timers and reschedule them */ 1484 /* queue pending timers and reschedule them */
1169 timers_reify (EV_A); /* relative timers called last */ 1485 timers_reify (EV_A); /* relative timers called last */
1486#if EV_PERIODIC_ENABLE
1170 periodics_reify (EV_A); /* absolute timers called first */ 1487 periodics_reify (EV_A); /* absolute timers called first */
1488#endif
1171 1489
1490#if EV_IDLE_ENABLE
1172 /* queue idle watchers unless io or timers are pending */ 1491 /* queue idle watchers unless other events are pending */
1173 if (idlecnt && !any_pending (EV_A)) 1492 idle_reify (EV_A);
1174 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1493#endif
1175 1494
1176 /* queue check watchers, to be executed first */ 1495 /* queue check watchers, to be executed first */
1177 if (checkcnt) 1496 if (expect_false (checkcnt))
1178 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1497 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1179 1498
1180 call_pending (EV_A); 1499 call_pending (EV_A);
1500
1181 } 1501 }
1182 while (activecnt && !loop_done); 1502 while (expect_true (activecnt && !loop_done));
1183 1503
1184 if (loop_done != 2) 1504 if (loop_done == EVUNLOOP_ONE)
1185 loop_done = 0; 1505 loop_done = EVUNLOOP_CANCEL;
1186} 1506}
1187 1507
1188void 1508void
1189ev_unloop (EV_P_ int how) 1509ev_unloop (EV_P_ int how)
1190{ 1510{
1191 loop_done = how; 1511 loop_done = how;
1192} 1512}
1193 1513
1194/*****************************************************************************/ 1514/*****************************************************************************/
1195 1515
1196inline void 1516void inline_size
1197wlist_add (WL *head, WL elem) 1517wlist_add (WL *head, WL elem)
1198{ 1518{
1199 elem->next = *head; 1519 elem->next = *head;
1200 *head = elem; 1520 *head = elem;
1201} 1521}
1202 1522
1203inline void 1523void inline_size
1204wlist_del (WL *head, WL elem) 1524wlist_del (WL *head, WL elem)
1205{ 1525{
1206 while (*head) 1526 while (*head)
1207 { 1527 {
1208 if (*head == elem) 1528 if (*head == elem)
… …
1213 1533
1214 head = &(*head)->next; 1534 head = &(*head)->next;
1215 } 1535 }
1216} 1536}
1217 1537
1218inline void 1538void inline_speed
1219ev_clear_pending (EV_P_ W w) 1539clear_pending (EV_P_ W w)
1220{ 1540{
1221 if (w->pending) 1541 if (w->pending)
1222 { 1542 {
1223 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1543 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1224 w->pending = 0; 1544 w->pending = 0;
1225 } 1545 }
1226} 1546}
1227 1547
1228inline 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
1229ev_start (EV_P_ W w, int active) 1575ev_start (EV_P_ W w, int active)
1230{ 1576{
1231 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1577 pri_adjust (EV_A_ w);
1232 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1233
1234 w->active = active; 1578 w->active = active;
1235 ev_ref (EV_A); 1579 ev_ref (EV_A);
1236} 1580}
1237 1581
1238inline void 1582void inline_size
1239ev_stop (EV_P_ W w) 1583ev_stop (EV_P_ W w)
1240{ 1584{
1241 ev_unref (EV_A); 1585 ev_unref (EV_A);
1242 w->active = 0; 1586 w->active = 0;
1243} 1587}
1244 1588
1245/*****************************************************************************/ 1589/*****************************************************************************/
1246 1590
1247void 1591void noinline
1248ev_io_start (EV_P_ struct ev_io *w) 1592ev_io_start (EV_P_ ev_io *w)
1249{ 1593{
1250 int fd = w->fd; 1594 int fd = w->fd;
1251 1595
1252 if (ev_is_active (w)) 1596 if (expect_false (ev_is_active (w)))
1253 return; 1597 return;
1254 1598
1255 assert (("ev_io_start called with negative fd", fd >= 0)); 1599 assert (("ev_io_start called with negative fd", fd >= 0));
1256 1600
1257 ev_start (EV_A_ (W)w, 1); 1601 ev_start (EV_A_ (W)w, 1);
… …
1259 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1603 wlist_add ((WL *)&anfds[fd].head, (WL)w);
1260 1604
1261 fd_change (EV_A_ fd); 1605 fd_change (EV_A_ fd);
1262} 1606}
1263 1607
1264void 1608void noinline
1265ev_io_stop (EV_P_ struct ev_io *w) 1609ev_io_stop (EV_P_ ev_io *w)
1266{ 1610{
1267 ev_clear_pending (EV_A_ (W)w); 1611 clear_pending (EV_A_ (W)w);
1268 if (!ev_is_active (w)) 1612 if (expect_false (!ev_is_active (w)))
1269 return; 1613 return;
1614
1615 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1270 1616
1271 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1617 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1272 ev_stop (EV_A_ (W)w); 1618 ev_stop (EV_A_ (W)w);
1273 1619
1274 fd_change (EV_A_ w->fd); 1620 fd_change (EV_A_ w->fd);
1275} 1621}
1276 1622
1277void 1623void noinline
1278ev_timer_start (EV_P_ struct ev_timer *w) 1624ev_timer_start (EV_P_ ev_timer *w)
1279{ 1625{
1280 if (ev_is_active (w)) 1626 if (expect_false (ev_is_active (w)))
1281 return; 1627 return;
1282 1628
1283 ((WT)w)->at += mn_now; 1629 ((WT)w)->at += mn_now;
1284 1630
1285 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.));
1286 1632
1287 ev_start (EV_A_ (W)w, ++timercnt); 1633 ev_start (EV_A_ (W)w, ++timercnt);
1288 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1634 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1289 timers [timercnt - 1] = w; 1635 timers [timercnt - 1] = w;
1290 upheap ((WT *)timers, timercnt - 1); 1636 upheap ((WT *)timers, timercnt - 1);
1291 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
1292 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1648 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1293}
1294 1649
1295void 1650 {
1296ev_timer_stop (EV_P_ struct ev_timer *w) 1651 int active = ((W)w)->active;
1297{
1298 ev_clear_pending (EV_A_ (W)w);
1299 if (!ev_is_active (w))
1300 return;
1301 1652
1302 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1653 if (expect_true (--active < --timercnt))
1303
1304 if (((W)w)->active < timercnt--)
1305 { 1654 {
1306 timers [((W)w)->active - 1] = timers [timercnt]; 1655 timers [active] = timers [timercnt];
1307 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1656 adjustheap ((WT *)timers, timercnt, active);
1308 } 1657 }
1658 }
1309 1659
1310 ((WT)w)->at = w->repeat; 1660 ((WT)w)->at -= mn_now;
1311 1661
1312 ev_stop (EV_A_ (W)w); 1662 ev_stop (EV_A_ (W)w);
1313} 1663}
1314 1664
1315void 1665void noinline
1316ev_timer_again (EV_P_ struct ev_timer *w) 1666ev_timer_again (EV_P_ ev_timer *w)
1317{ 1667{
1318 if (ev_is_active (w)) 1668 if (ev_is_active (w))
1319 { 1669 {
1320 if (w->repeat) 1670 if (w->repeat)
1321 { 1671 {
1322 ((WT)w)->at = mn_now + w->repeat; 1672 ((WT)w)->at = mn_now + w->repeat;
1323 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1673 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1324 } 1674 }
1325 else 1675 else
1326 ev_timer_stop (EV_A_ w); 1676 ev_timer_stop (EV_A_ w);
1327 } 1677 }
1328 else if (w->repeat) 1678 else if (w->repeat)
1679 {
1680 w->at = w->repeat;
1329 ev_timer_start (EV_A_ w); 1681 ev_timer_start (EV_A_ w);
1682 }
1330} 1683}
1331 1684
1332void 1685#if EV_PERIODIC_ENABLE
1686void noinline
1333ev_periodic_start (EV_P_ struct ev_periodic *w) 1687ev_periodic_start (EV_P_ ev_periodic *w)
1334{ 1688{
1335 if (ev_is_active (w)) 1689 if (expect_false (ev_is_active (w)))
1336 return; 1690 return;
1337 1691
1338 if (w->reschedule_cb) 1692 if (w->reschedule_cb)
1339 ((WT)w)->at = w->reschedule_cb (w, rt_now); 1693 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1340 else if (w->interval) 1694 else if (w->interval)
1341 { 1695 {
1342 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.));
1343 /* 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 */
1344 ((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;
1345 } 1699 }
1700 else
1701 ((WT)w)->at = w->offset;
1346 1702
1347 ev_start (EV_A_ (W)w, ++periodiccnt); 1703 ev_start (EV_A_ (W)w, ++periodiccnt);
1348 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1704 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1349 periodics [periodiccnt - 1] = w; 1705 periodics [periodiccnt - 1] = w;
1350 upheap ((WT *)periodics, periodiccnt - 1); 1706 upheap ((WT *)periodics, periodiccnt - 1);
1351 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
1352 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1718 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1353}
1354 1719
1355void 1720 {
1356ev_periodic_stop (EV_P_ struct ev_periodic *w) 1721 int active = ((W)w)->active;
1357{
1358 ev_clear_pending (EV_A_ (W)w);
1359 if (!ev_is_active (w))
1360 return;
1361 1722
1362 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1723 if (expect_true (--active < --periodiccnt))
1363
1364 if (((W)w)->active < periodiccnt--)
1365 { 1724 {
1366 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1725 periodics [active] = periodics [periodiccnt];
1367 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1726 adjustheap ((WT *)periodics, periodiccnt, active);
1368 } 1727 }
1728 }
1369 1729
1370 ev_stop (EV_A_ (W)w); 1730 ev_stop (EV_A_ (W)w);
1371} 1731}
1372 1732
1373void 1733void noinline
1374ev_periodic_again (EV_P_ struct ev_periodic *w) 1734ev_periodic_again (EV_P_ ev_periodic *w)
1375{ 1735{
1736 /* TODO: use adjustheap and recalculation */
1376 ev_periodic_stop (EV_A_ w); 1737 ev_periodic_stop (EV_A_ w);
1377 ev_periodic_start (EV_A_ w); 1738 ev_periodic_start (EV_A_ w);
1378} 1739}
1379 1740#endif
1380void
1381ev_idle_start (EV_P_ struct ev_idle *w)
1382{
1383 if (ev_is_active (w))
1384 return;
1385
1386 ev_start (EV_A_ (W)w, ++idlecnt);
1387 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1388 idles [idlecnt - 1] = w;
1389}
1390
1391void
1392ev_idle_stop (EV_P_ struct ev_idle *w)
1393{
1394 ev_clear_pending (EV_A_ (W)w);
1395 if (ev_is_active (w))
1396 return;
1397
1398 idles [((W)w)->active - 1] = idles [--idlecnt];
1399 ev_stop (EV_A_ (W)w);
1400}
1401
1402void
1403ev_prepare_start (EV_P_ struct ev_prepare *w)
1404{
1405 if (ev_is_active (w))
1406 return;
1407
1408 ev_start (EV_A_ (W)w, ++preparecnt);
1409 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1410 prepares [preparecnt - 1] = w;
1411}
1412
1413void
1414ev_prepare_stop (EV_P_ struct ev_prepare *w)
1415{
1416 ev_clear_pending (EV_A_ (W)w);
1417 if (ev_is_active (w))
1418 return;
1419
1420 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1421 ev_stop (EV_A_ (W)w);
1422}
1423
1424void
1425ev_check_start (EV_P_ struct ev_check *w)
1426{
1427 if (ev_is_active (w))
1428 return;
1429
1430 ev_start (EV_A_ (W)w, ++checkcnt);
1431 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1432 checks [checkcnt - 1] = w;
1433}
1434
1435void
1436ev_check_stop (EV_P_ struct ev_check *w)
1437{
1438 ev_clear_pending (EV_A_ (W)w);
1439 if (ev_is_active (w))
1440 return;
1441
1442 checks [((W)w)->active - 1] = checks [--checkcnt];
1443 ev_stop (EV_A_ (W)w);
1444}
1445 1741
1446#ifndef SA_RESTART 1742#ifndef SA_RESTART
1447# define SA_RESTART 0 1743# define SA_RESTART 0
1448#endif 1744#endif
1449 1745
1450void 1746void noinline
1451ev_signal_start (EV_P_ struct ev_signal *w) 1747ev_signal_start (EV_P_ ev_signal *w)
1452{ 1748{
1453#if EV_MULTIPLICITY 1749#if EV_MULTIPLICITY
1454 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));
1455#endif 1751#endif
1456 if (ev_is_active (w)) 1752 if (expect_false (ev_is_active (w)))
1457 return; 1753 return;
1458 1754
1459 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));
1460 1756
1461 ev_start (EV_A_ (W)w, 1); 1757 ev_start (EV_A_ (W)w, 1);
1462 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 1758 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1463 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1759 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1464 1760
1465 if (!((WL)w)->next) 1761 if (!((WL)w)->next)
1466 { 1762 {
1467#if WIN32 1763#if _WIN32
1468 signal (w->signum, sighandler); 1764 signal (w->signum, sighandler);
1469#else 1765#else
1470 struct sigaction sa; 1766 struct sigaction sa;
1471 sa.sa_handler = sighandler; 1767 sa.sa_handler = sighandler;
1472 sigfillset (&sa.sa_mask); 1768 sigfillset (&sa.sa_mask);
… …
1474 sigaction (w->signum, &sa, 0); 1770 sigaction (w->signum, &sa, 0);
1475#endif 1771#endif
1476 } 1772 }
1477} 1773}
1478 1774
1479void 1775void noinline
1480ev_signal_stop (EV_P_ struct ev_signal *w) 1776ev_signal_stop (EV_P_ ev_signal *w)
1481{ 1777{
1482 ev_clear_pending (EV_A_ (W)w); 1778 clear_pending (EV_A_ (W)w);
1483 if (!ev_is_active (w)) 1779 if (expect_false (!ev_is_active (w)))
1484 return; 1780 return;
1485 1781
1486 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1782 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1487 ev_stop (EV_A_ (W)w); 1783 ev_stop (EV_A_ (W)w);
1488 1784
1489 if (!signals [w->signum - 1].head) 1785 if (!signals [w->signum - 1].head)
1490 signal (w->signum, SIG_DFL); 1786 signal (w->signum, SIG_DFL);
1491} 1787}
1492 1788
1493void 1789void
1494ev_child_start (EV_P_ struct ev_child *w) 1790ev_child_start (EV_P_ ev_child *w)
1495{ 1791{
1496#if EV_MULTIPLICITY 1792#if EV_MULTIPLICITY
1497 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));
1498#endif 1794#endif
1499 if (ev_is_active (w)) 1795 if (expect_false (ev_is_active (w)))
1500 return; 1796 return;
1501 1797
1502 ev_start (EV_A_ (W)w, 1); 1798 ev_start (EV_A_ (W)w, 1);
1503 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1799 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1504} 1800}
1505 1801
1506void 1802void
1507ev_child_stop (EV_P_ struct ev_child *w) 1803ev_child_stop (EV_P_ ev_child *w)
1508{ 1804{
1509 ev_clear_pending (EV_A_ (W)w); 1805 clear_pending (EV_A_ (W)w);
1510 if (ev_is_active (w)) 1806 if (expect_false (!ev_is_active (w)))
1511 return; 1807 return;
1512 1808
1513 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1809 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1514 ev_stop (EV_A_ (W)w); 1810 ev_stop (EV_A_ (W)w);
1515} 1811}
1516 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
1517/*****************************************************************************/ 2235/*****************************************************************************/
1518 2236
1519struct ev_once 2237struct ev_once
1520{ 2238{
1521 struct ev_io io; 2239 ev_io io;
1522 struct ev_timer to; 2240 ev_timer to;
1523 void (*cb)(int revents, void *arg); 2241 void (*cb)(int revents, void *arg);
1524 void *arg; 2242 void *arg;
1525}; 2243};
1526 2244
1527static void 2245static void
… …
1536 2254
1537 cb (revents, arg); 2255 cb (revents, arg);
1538} 2256}
1539 2257
1540static void 2258static void
1541once_cb_io (EV_P_ struct ev_io *w, int revents) 2259once_cb_io (EV_P_ ev_io *w, int revents)
1542{ 2260{
1543 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);
1544} 2262}
1545 2263
1546static void 2264static void
1547once_cb_to (EV_P_ struct ev_timer *w, int revents) 2265once_cb_to (EV_P_ ev_timer *w, int revents)
1548{ 2266{
1549 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);
1550} 2268}
1551 2269
1552void 2270void
1553ev_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)
1554{ 2272{
1555 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));
1556 2274
1557 if (!once) 2275 if (expect_false (!once))
2276 {
1558 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2277 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1559 else 2278 return;
1560 { 2279 }
2280
1561 once->cb = cb; 2281 once->cb = cb;
1562 once->arg = arg; 2282 once->arg = arg;
1563 2283
1564 ev_watcher_init (&once->io, once_cb_io); 2284 ev_init (&once->io, once_cb_io);
1565 if (fd >= 0) 2285 if (fd >= 0)
1566 { 2286 {
1567 ev_io_set (&once->io, fd, events); 2287 ev_io_set (&once->io, fd, events);
1568 ev_io_start (EV_A_ &once->io); 2288 ev_io_start (EV_A_ &once->io);
1569 } 2289 }
1570 2290
1571 ev_watcher_init (&once->to, once_cb_to); 2291 ev_init (&once->to, once_cb_to);
1572 if (timeout >= 0.) 2292 if (timeout >= 0.)
1573 { 2293 {
1574 ev_timer_set (&once->to, timeout, 0.); 2294 ev_timer_set (&once->to, timeout, 0.);
1575 ev_timer_start (EV_A_ &once->to); 2295 ev_timer_start (EV_A_ &once->to);
1576 }
1577 } 2296 }
1578} 2297}
1579 2298
2299#ifdef __cplusplus
2300}
2301#endif
2302

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