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Comparing libev/ev.c (file contents):
Revision 1.75 by root, Tue Nov 6 19:29:20 2007 UTC vs.
Revision 1.166 by root, Sat Dec 8 03:53:36 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
126#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 221#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) */ 222#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 */ 223/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
130
131#include "ev.h"
132 224
133#if __GNUC__ >= 3 225#if __GNUC__ >= 3
134# define expect(expr,value) __builtin_expect ((expr),(value)) 226# define expect(expr,value) __builtin_expect ((expr),(value))
227# define inline_size static inline /* inline for codesize */
228# if EV_MINIMAL
135# define inline inline 229# define noinline __attribute__ ((noinline))
230# define inline_speed static noinline
231# else
232# define noinline
233# define inline_speed static inline
234# endif
136#else 235#else
137# define expect(expr,value) (expr) 236# define expect(expr,value) (expr)
237# define inline_speed static
138# define inline static 238# define inline_size static
239# define noinline
139#endif 240#endif
140 241
141#define expect_false(expr) expect ((expr) != 0, 0) 242#define expect_false(expr) expect ((expr) != 0, 0)
142#define expect_true(expr) expect ((expr) != 0, 1) 243#define expect_true(expr) expect ((expr) != 0, 1)
143 244
144#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 245#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145#define ABSPRI(w) ((w)->priority - EV_MINPRI) 246#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
146 247
248#define EMPTY /* required for microsofts broken pseudo-c compiler */
249#define EMPTY2(a,b) /* used to suppress some warnings */
250
147typedef struct ev_watcher *W; 251typedef ev_watcher *W;
148typedef struct ev_watcher_list *WL; 252typedef ev_watcher_list *WL;
149typedef struct ev_watcher_time *WT; 253typedef ev_watcher_time *WT;
150 254
151static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 255static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152 256
257#ifdef _WIN32
153#include "ev_win32.c" 258# include "ev_win32.c"
259#endif
154 260
155/*****************************************************************************/ 261/*****************************************************************************/
156 262
157static void (*syserr_cb)(const char *msg); 263static void (*syserr_cb)(const char *msg);
158 264
265void
159void ev_set_syserr_cb (void (*cb)(const char *msg)) 266ev_set_syserr_cb (void (*cb)(const char *msg))
160{ 267{
161 syserr_cb = cb; 268 syserr_cb = cb;
162} 269}
163 270
164static void 271static void noinline
165syserr (const char *msg) 272syserr (const char *msg)
166{ 273{
167 if (!msg) 274 if (!msg)
168 msg = "(libev) system error"; 275 msg = "(libev) system error";
169 276
… …
176 } 283 }
177} 284}
178 285
179static void *(*alloc)(void *ptr, long size); 286static void *(*alloc)(void *ptr, long size);
180 287
288void
181void ev_set_allocator (void *(*cb)(void *ptr, long size)) 289ev_set_allocator (void *(*cb)(void *ptr, long size))
182{ 290{
183 alloc = cb; 291 alloc = cb;
184} 292}
185 293
186static void * 294inline_speed void *
187ev_realloc (void *ptr, long size) 295ev_realloc (void *ptr, long size)
188{ 296{
189 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 297 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
190 298
191 if (!ptr && size) 299 if (!ptr && size)
… …
205typedef struct 313typedef struct
206{ 314{
207 WL head; 315 WL head;
208 unsigned char events; 316 unsigned char events;
209 unsigned char reify; 317 unsigned char reify;
318#if EV_SELECT_IS_WINSOCKET
319 SOCKET handle;
320#endif
210} ANFD; 321} ANFD;
211 322
212typedef struct 323typedef struct
213{ 324{
214 W w; 325 W w;
215 int events; 326 int events;
216} ANPENDING; 327} ANPENDING;
217 328
329#if EV_USE_INOTIFY
330typedef struct
331{
332 WL head;
333} ANFS;
334#endif
335
218#if EV_MULTIPLICITY 336#if EV_MULTIPLICITY
219 337
220struct ev_loop 338 struct ev_loop
221{ 339 {
340 ev_tstamp ev_rt_now;
341 #define ev_rt_now ((loop)->ev_rt_now)
222# define VAR(name,decl) decl; 342 #define VAR(name,decl) decl;
223# include "ev_vars.h" 343 #include "ev_vars.h"
224};
225# undef VAR 344 #undef VAR
345 };
226# include "ev_wrap.h" 346 #include "ev_wrap.h"
347
348 static struct ev_loop default_loop_struct;
349 struct ev_loop *ev_default_loop_ptr;
227 350
228#else 351#else
229 352
353 ev_tstamp ev_rt_now;
230# define VAR(name,decl) static decl; 354 #define VAR(name,decl) static decl;
231# include "ev_vars.h" 355 #include "ev_vars.h"
232# undef VAR 356 #undef VAR
357
358 static int ev_default_loop_ptr;
233 359
234#endif 360#endif
235 361
236/*****************************************************************************/ 362/*****************************************************************************/
237 363
238inline ev_tstamp 364ev_tstamp
239ev_time (void) 365ev_time (void)
240{ 366{
241#if EV_USE_REALTIME 367#if EV_USE_REALTIME
242 struct timespec ts; 368 struct timespec ts;
243 clock_gettime (CLOCK_REALTIME, &ts); 369 clock_gettime (CLOCK_REALTIME, &ts);
… …
247 gettimeofday (&tv, 0); 373 gettimeofday (&tv, 0);
248 return tv.tv_sec + tv.tv_usec * 1e-6; 374 return tv.tv_sec + tv.tv_usec * 1e-6;
249#endif 375#endif
250} 376}
251 377
252inline ev_tstamp 378ev_tstamp inline_size
253get_clock (void) 379get_clock (void)
254{ 380{
255#if EV_USE_MONOTONIC 381#if EV_USE_MONOTONIC
256 if (expect_true (have_monotonic)) 382 if (expect_true (have_monotonic))
257 { 383 {
… …
262#endif 388#endif
263 389
264 return ev_time (); 390 return ev_time ();
265} 391}
266 392
393#if EV_MULTIPLICITY
267ev_tstamp 394ev_tstamp
268ev_now (EV_P) 395ev_now (EV_P)
269{ 396{
270 return rt_now; 397 return ev_rt_now;
271} 398}
399#endif
272 400
273#define array_roundsize(type,n) ((n) | 4 & ~3) 401int inline_size
402array_nextsize (int elem, int cur, int cnt)
403{
404 int ncur = cur + 1;
405
406 do
407 ncur <<= 1;
408 while (cnt > ncur);
409
410 /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */
411 if (elem * ncur > 4096)
412 {
413 ncur *= elem;
414 ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095;
415 ncur = ncur - sizeof (void *) * 4;
416 ncur /= elem;
417 }
418
419 return ncur;
420}
421
422inline_speed void *
423array_realloc (int elem, void *base, int *cur, int cnt)
424{
425 *cur = array_nextsize (elem, *cur, cnt);
426 return ev_realloc (base, elem * *cur);
427}
274 428
275#define array_needsize(type,base,cur,cnt,init) \ 429#define array_needsize(type,base,cur,cnt,init) \
276 if (expect_false ((cnt) > cur)) \ 430 if (expect_false ((cnt) > (cur))) \
277 { \ 431 { \
278 int newcnt = cur; \ 432 int ocur_ = (cur); \
279 do \ 433 (base) = (type *)array_realloc \
280 { \ 434 (sizeof (type), (base), &(cur), (cnt)); \
281 newcnt = array_roundsize (type, newcnt << 1); \ 435 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 } 436 }
289 437
438#if 0
290#define array_slim(type,stem) \ 439#define array_slim(type,stem) \
291 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 440 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
292 { \ 441 { \
293 stem ## max = array_roundsize (stem ## cnt >> 1); \ 442 stem ## max = array_roundsize (stem ## cnt >> 1); \
294 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 443 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
295 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 444 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
296 } 445 }
297 446#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;
302 447
303#define array_free(stem, idx) \ 448#define array_free(stem, idx) \
304 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 449 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
305 450
306/*****************************************************************************/ 451/*****************************************************************************/
307 452
308static void 453void noinline
454ev_feed_event (EV_P_ void *w, int revents)
455{
456 W w_ = (W)w;
457
458 if (expect_false (w_->pending))
459 {
460 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
461 return;
462 }
463
464 w_->pending = ++pendingcnt [ABSPRI (w_)];
465 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
466 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
467 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
468}
469
470void inline_size
471queue_events (EV_P_ W *events, int eventcnt, int type)
472{
473 int i;
474
475 for (i = 0; i < eventcnt; ++i)
476 ev_feed_event (EV_A_ events [i], type);
477}
478
479/*****************************************************************************/
480
481void inline_size
309anfds_init (ANFD *base, int count) 482anfds_init (ANFD *base, int count)
310{ 483{
311 while (count--) 484 while (count--)
312 { 485 {
313 base->head = 0; 486 base->head = 0;
… …
316 489
317 ++base; 490 ++base;
318 } 491 }
319} 492}
320 493
321static void 494void inline_speed
322event (EV_P_ W w, int events)
323{
324 if (w->pending)
325 {
326 pendings [ABSPRI (w)][w->pending - 1].events |= events;
327 return;
328 }
329
330 w->pending = ++pendingcnt [ABSPRI (w)];
331 array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
332 pendings [ABSPRI (w)][w->pending - 1].w = w;
333 pendings [ABSPRI (w)][w->pending - 1].events = events;
334}
335
336static void
337queue_events (EV_P_ W *events, int eventcnt, int type)
338{
339 int i;
340
341 for (i = 0; i < eventcnt; ++i)
342 event (EV_A_ events [i], type);
343}
344
345static void
346fd_event (EV_P_ int fd, int events) 495fd_event (EV_P_ int fd, int revents)
347{ 496{
348 ANFD *anfd = anfds + fd; 497 ANFD *anfd = anfds + fd;
349 struct ev_io *w; 498 ev_io *w;
350 499
351 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 500 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
352 { 501 {
353 int ev = w->events & events; 502 int ev = w->events & revents;
354 503
355 if (ev) 504 if (ev)
356 event (EV_A_ (W)w, ev); 505 ev_feed_event (EV_A_ (W)w, ev);
357 } 506 }
358} 507}
359 508
360/*****************************************************************************/ 509void
510ev_feed_fd_event (EV_P_ int fd, int revents)
511{
512 fd_event (EV_A_ fd, revents);
513}
361 514
362static void 515void inline_size
363fd_reify (EV_P) 516fd_reify (EV_P)
364{ 517{
365 int i; 518 int i;
366 519
367 for (i = 0; i < fdchangecnt; ++i) 520 for (i = 0; i < fdchangecnt; ++i)
368 { 521 {
369 int fd = fdchanges [i]; 522 int fd = fdchanges [i];
370 ANFD *anfd = anfds + fd; 523 ANFD *anfd = anfds + fd;
371 struct ev_io *w; 524 ev_io *w;
372 525
373 int events = 0; 526 int events = 0;
374 527
375 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 528 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
376 events |= w->events; 529 events |= w->events;
377 530
531#if EV_SELECT_IS_WINSOCKET
532 if (events)
533 {
534 unsigned long argp;
535 anfd->handle = _get_osfhandle (fd);
536 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
537 }
538#endif
539
378 anfd->reify = 0; 540 anfd->reify = 0;
379 541
380 method_modify (EV_A_ fd, anfd->events, events); 542 backend_modify (EV_A_ fd, anfd->events, events);
381 anfd->events = events; 543 anfd->events = events;
382 } 544 }
383 545
384 fdchangecnt = 0; 546 fdchangecnt = 0;
385} 547}
386 548
387static void 549void inline_size
388fd_change (EV_P_ int fd) 550fd_change (EV_P_ int fd)
389{ 551{
390 if (anfds [fd].reify) 552 if (expect_false (anfds [fd].reify))
391 return; 553 return;
392 554
393 anfds [fd].reify = 1; 555 anfds [fd].reify = 1;
394 556
395 ++fdchangecnt; 557 ++fdchangecnt;
396 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 558 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
397 fdchanges [fdchangecnt - 1] = fd; 559 fdchanges [fdchangecnt - 1] = fd;
398} 560}
399 561
400static void 562void inline_speed
401fd_kill (EV_P_ int fd) 563fd_kill (EV_P_ int fd)
402{ 564{
403 struct ev_io *w; 565 ev_io *w;
404 566
405 while ((w = (struct ev_io *)anfds [fd].head)) 567 while ((w = (ev_io *)anfds [fd].head))
406 { 568 {
407 ev_io_stop (EV_A_ w); 569 ev_io_stop (EV_A_ w);
408 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 570 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
409 } 571 }
410} 572}
411 573
412static int 574int inline_size
413fd_valid (int fd) 575fd_valid (int fd)
414{ 576{
415#ifdef WIN32 577#ifdef _WIN32
416 return !!win32_get_osfhandle (fd); 578 return _get_osfhandle (fd) != -1;
417#else 579#else
418 return fcntl (fd, F_GETFD) != -1; 580 return fcntl (fd, F_GETFD) != -1;
419#endif 581#endif
420} 582}
421 583
422/* called on EBADF to verify fds */ 584/* called on EBADF to verify fds */
423static void 585static void noinline
424fd_ebadf (EV_P) 586fd_ebadf (EV_P)
425{ 587{
426 int fd; 588 int fd;
427 589
428 for (fd = 0; fd < anfdmax; ++fd) 590 for (fd = 0; fd < anfdmax; ++fd)
… …
430 if (!fd_valid (fd) == -1 && errno == EBADF) 592 if (!fd_valid (fd) == -1 && errno == EBADF)
431 fd_kill (EV_A_ fd); 593 fd_kill (EV_A_ fd);
432} 594}
433 595
434/* called on ENOMEM in select/poll to kill some fds and retry */ 596/* called on ENOMEM in select/poll to kill some fds and retry */
435static void 597static void noinline
436fd_enomem (EV_P) 598fd_enomem (EV_P)
437{ 599{
438 int fd; 600 int fd;
439 601
440 for (fd = anfdmax; fd--; ) 602 for (fd = anfdmax; fd--; )
… …
443 fd_kill (EV_A_ fd); 605 fd_kill (EV_A_ fd);
444 return; 606 return;
445 } 607 }
446} 608}
447 609
448/* usually called after fork if method needs to re-arm all fds from scratch */ 610/* usually called after fork if backend needs to re-arm all fds from scratch */
449static void 611static void noinline
450fd_rearm_all (EV_P) 612fd_rearm_all (EV_P)
451{ 613{
452 int fd; 614 int fd;
453 615
454 /* this should be highly optimised to not do anything but set a flag */
455 for (fd = 0; fd < anfdmax; ++fd) 616 for (fd = 0; fd < anfdmax; ++fd)
456 if (anfds [fd].events) 617 if (anfds [fd].events)
457 { 618 {
458 anfds [fd].events = 0; 619 anfds [fd].events = 0;
459 fd_change (EV_A_ fd); 620 fd_change (EV_A_ fd);
460 } 621 }
461} 622}
462 623
463/*****************************************************************************/ 624/*****************************************************************************/
464 625
465static void 626void inline_speed
466upheap (WT *heap, int k) 627upheap (WT *heap, int k)
467{ 628{
468 WT w = heap [k]; 629 WT w = heap [k];
469 630
470 while (k && heap [k >> 1]->at > w->at) 631 while (k && heap [k >> 1]->at > w->at)
… …
477 heap [k] = w; 638 heap [k] = w;
478 ((W)heap [k])->active = k + 1; 639 ((W)heap [k])->active = k + 1;
479 640
480} 641}
481 642
482static void 643void inline_speed
483downheap (WT *heap, int N, int k) 644downheap (WT *heap, int N, int k)
484{ 645{
485 WT w = heap [k]; 646 WT w = heap [k];
486 647
487 while (k < (N >> 1)) 648 while (k < (N >> 1))
… …
501 662
502 heap [k] = w; 663 heap [k] = w;
503 ((W)heap [k])->active = k + 1; 664 ((W)heap [k])->active = k + 1;
504} 665}
505 666
667void inline_size
668adjustheap (WT *heap, int N, int k)
669{
670 upheap (heap, k);
671 downheap (heap, N, k);
672}
673
506/*****************************************************************************/ 674/*****************************************************************************/
507 675
508typedef struct 676typedef struct
509{ 677{
510 WL head; 678 WL head;
… …
514static ANSIG *signals; 682static ANSIG *signals;
515static int signalmax; 683static int signalmax;
516 684
517static int sigpipe [2]; 685static int sigpipe [2];
518static sig_atomic_t volatile gotsig; 686static sig_atomic_t volatile gotsig;
519static struct ev_io sigev; 687static ev_io sigev;
520 688
521static void 689void inline_size
522signals_init (ANSIG *base, int count) 690signals_init (ANSIG *base, int count)
523{ 691{
524 while (count--) 692 while (count--)
525 { 693 {
526 base->head = 0; 694 base->head = 0;
… …
531} 699}
532 700
533static void 701static void
534sighandler (int signum) 702sighandler (int signum)
535{ 703{
536#if WIN32 704#if _WIN32
537 signal (signum, sighandler); 705 signal (signum, sighandler);
538#endif 706#endif
539 707
540 signals [signum - 1].gotsig = 1; 708 signals [signum - 1].gotsig = 1;
541 709
542 if (!gotsig) 710 if (!gotsig)
543 { 711 {
544 int old_errno = errno; 712 int old_errno = errno;
545 gotsig = 1; 713 gotsig = 1;
546#ifdef WIN32
547 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
548#else
549 write (sigpipe [1], &signum, 1); 714 write (sigpipe [1], &signum, 1);
550#endif
551 errno = old_errno; 715 errno = old_errno;
552 } 716 }
553} 717}
554 718
719void noinline
720ev_feed_signal_event (EV_P_ int signum)
721{
722 WL w;
723
724#if EV_MULTIPLICITY
725 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
726#endif
727
728 --signum;
729
730 if (signum < 0 || signum >= signalmax)
731 return;
732
733 signals [signum].gotsig = 0;
734
735 for (w = signals [signum].head; w; w = w->next)
736 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
737}
738
555static void 739static void
556sigcb (EV_P_ struct ev_io *iow, int revents) 740sigcb (EV_P_ ev_io *iow, int revents)
557{ 741{
558 WL w;
559 int signum; 742 int signum;
560 743
561#ifdef WIN32
562 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
563#else
564 read (sigpipe [0], &revents, 1); 744 read (sigpipe [0], &revents, 1);
565#endif
566 gotsig = 0; 745 gotsig = 0;
567 746
568 for (signum = signalmax; signum--; ) 747 for (signum = signalmax; signum--; )
569 if (signals [signum].gotsig) 748 if (signals [signum].gotsig)
570 { 749 ev_feed_signal_event (EV_A_ signum + 1);
571 signals [signum].gotsig = 0;
572
573 for (w = signals [signum].head; w; w = w->next)
574 event (EV_A_ (W)w, EV_SIGNAL);
575 }
576} 750}
577 751
578static void 752void inline_size
753fd_intern (int fd)
754{
755#ifdef _WIN32
756 int arg = 1;
757 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
758#else
759 fcntl (fd, F_SETFD, FD_CLOEXEC);
760 fcntl (fd, F_SETFL, O_NONBLOCK);
761#endif
762}
763
764static void noinline
579siginit (EV_P) 765siginit (EV_P)
580{ 766{
581#ifndef WIN32 767 fd_intern (sigpipe [0]);
582 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 768 fd_intern (sigpipe [1]);
583 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
584
585 /* rather than sort out wether we really need nb, set it */
586 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
587 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
588#endif
589 769
590 ev_io_set (&sigev, sigpipe [0], EV_READ); 770 ev_io_set (&sigev, sigpipe [0], EV_READ);
591 ev_io_start (EV_A_ &sigev); 771 ev_io_start (EV_A_ &sigev);
592 ev_unref (EV_A); /* child watcher should not keep loop alive */ 772 ev_unref (EV_A); /* child watcher should not keep loop alive */
593} 773}
594 774
595/*****************************************************************************/ 775/*****************************************************************************/
596 776
597static struct ev_child *childs [PID_HASHSIZE]; 777static ev_child *childs [EV_PID_HASHSIZE];
598 778
599#ifndef WIN32 779#ifndef _WIN32
600 780
601static struct ev_signal childev; 781static ev_signal childev;
782
783void inline_speed
784child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
785{
786 ev_child *w;
787
788 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
789 if (w->pid == pid || !w->pid)
790 {
791 ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */
792 w->rpid = pid;
793 w->rstatus = status;
794 ev_feed_event (EV_A_ (W)w, EV_CHILD);
795 }
796}
602 797
603#ifndef WCONTINUED 798#ifndef WCONTINUED
604# define WCONTINUED 0 799# define WCONTINUED 0
605#endif 800#endif
606 801
607static void 802static void
608child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
609{
610 struct ev_child *w;
611
612 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
613 if (w->pid == pid || !w->pid)
614 {
615 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
616 w->rpid = pid;
617 w->rstatus = status;
618 event (EV_A_ (W)w, EV_CHILD);
619 }
620}
621
622static void
623childcb (EV_P_ struct ev_signal *sw, int revents) 803childcb (EV_P_ ev_signal *sw, int revents)
624{ 804{
625 int pid, status; 805 int pid, status;
626 806
807 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
627 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 808 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
628 { 809 if (!WCONTINUED
810 || errno != EINVAL
811 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
812 return;
813
629 /* make sure we are called again until all childs have been reaped */ 814 /* make sure we are called again until all childs have been reaped */
815 /* we need to do it this way so that the callback gets called before we continue */
630 event (EV_A_ (W)sw, EV_SIGNAL); 816 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
631 817
632 child_reap (EV_A_ sw, pid, pid, status); 818 child_reap (EV_A_ sw, pid, pid, status);
819 if (EV_PID_HASHSIZE > 1)
633 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 820 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
634 }
635} 821}
636 822
637#endif 823#endif
638 824
639/*****************************************************************************/ 825/*****************************************************************************/
640 826
827#if EV_USE_PORT
828# include "ev_port.c"
829#endif
641#if EV_USE_KQUEUE 830#if EV_USE_KQUEUE
642# include "ev_kqueue.c" 831# include "ev_kqueue.c"
643#endif 832#endif
644#if EV_USE_EPOLL 833#if EV_USE_EPOLL
645# include "ev_epoll.c" 834# include "ev_epoll.c"
… …
662{ 851{
663 return EV_VERSION_MINOR; 852 return EV_VERSION_MINOR;
664} 853}
665 854
666/* return true if we are running with elevated privileges and should ignore env variables */ 855/* return true if we are running with elevated privileges and should ignore env variables */
667static int 856int inline_size
668enable_secure (void) 857enable_secure (void)
669{ 858{
670#ifdef WIN32 859#ifdef _WIN32
671 return 0; 860 return 0;
672#else 861#else
673 return getuid () != geteuid () 862 return getuid () != geteuid ()
674 || getgid () != getegid (); 863 || getgid () != getegid ();
675#endif 864#endif
676} 865}
677 866
678int 867unsigned int
679ev_method (EV_P) 868ev_supported_backends (void)
680{ 869{
681 return method; 870 unsigned int flags = 0;
682}
683 871
684static void 872 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
685loop_init (EV_P_ int methods) 873 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
874 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
875 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
876 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
877
878 return flags;
879}
880
881unsigned int
882ev_recommended_backends (void)
686{ 883{
687 if (!method) 884 unsigned int flags = ev_supported_backends ();
885
886#ifndef __NetBSD__
887 /* kqueue is borked on everything but netbsd apparently */
888 /* it usually doesn't work correctly on anything but sockets and pipes */
889 flags &= ~EVBACKEND_KQUEUE;
890#endif
891#ifdef __APPLE__
892 // flags &= ~EVBACKEND_KQUEUE; for documentation
893 flags &= ~EVBACKEND_POLL;
894#endif
895
896 return flags;
897}
898
899unsigned int
900ev_embeddable_backends (void)
901{
902 return EVBACKEND_EPOLL
903 | EVBACKEND_KQUEUE
904 | EVBACKEND_PORT;
905}
906
907unsigned int
908ev_backend (EV_P)
909{
910 return backend;
911}
912
913unsigned int
914ev_loop_count (EV_P)
915{
916 return loop_count;
917}
918
919static void noinline
920loop_init (EV_P_ unsigned int flags)
921{
922 if (!backend)
688 { 923 {
689#if EV_USE_MONOTONIC 924#if EV_USE_MONOTONIC
690 { 925 {
691 struct timespec ts; 926 struct timespec ts;
692 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 927 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
693 have_monotonic = 1; 928 have_monotonic = 1;
694 } 929 }
695#endif 930#endif
696 931
697 rt_now = ev_time (); 932 ev_rt_now = ev_time ();
698 mn_now = get_clock (); 933 mn_now = get_clock ();
699 now_floor = mn_now; 934 now_floor = mn_now;
700 rtmn_diff = rt_now - mn_now; 935 rtmn_diff = ev_rt_now - mn_now;
701 936
702 if (methods == EVMETHOD_AUTO) 937 /* pid check not overridable via env */
703 if (!enable_secure () && getenv ("LIBEV_METHODS")) 938#ifndef _WIN32
939 if (flags & EVFLAG_FORKCHECK)
940 curpid = getpid ();
941#endif
942
943 if (!(flags & EVFLAG_NOENV)
944 && !enable_secure ()
945 && getenv ("LIBEV_FLAGS"))
704 methods = atoi (getenv ("LIBEV_METHODS")); 946 flags = atoi (getenv ("LIBEV_FLAGS"));
705 else
706 methods = EVMETHOD_ANY;
707 947
708 method = 0; 948 if (!(flags & 0x0000ffffUL))
949 flags |= ev_recommended_backends ();
950
951 backend = 0;
952 backend_fd = -1;
709#if EV_USE_WIN32 953#if EV_USE_INOTIFY
710 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); 954 fs_fd = -2;
955#endif
956
957#if EV_USE_PORT
958 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
711#endif 959#endif
712#if EV_USE_KQUEUE 960#if EV_USE_KQUEUE
713 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 961 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
714#endif 962#endif
715#if EV_USE_EPOLL 963#if EV_USE_EPOLL
716 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 964 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
717#endif 965#endif
718#if EV_USE_POLL 966#if EV_USE_POLL
719 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 967 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
720#endif 968#endif
721#if EV_USE_SELECT 969#if EV_USE_SELECT
722 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 970 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
723#endif 971#endif
724 972
725 ev_watcher_init (&sigev, sigcb); 973 ev_init (&sigev, sigcb);
726 ev_set_priority (&sigev, EV_MAXPRI); 974 ev_set_priority (&sigev, EV_MAXPRI);
727 } 975 }
728} 976}
729 977
730void 978static void noinline
731loop_destroy (EV_P) 979loop_destroy (EV_P)
732{ 980{
733 int i; 981 int i;
734 982
735#if EV_USE_WIN32 983#if EV_USE_INOTIFY
736 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); 984 if (fs_fd >= 0)
985 close (fs_fd);
986#endif
987
988 if (backend_fd >= 0)
989 close (backend_fd);
990
991#if EV_USE_PORT
992 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
737#endif 993#endif
738#if EV_USE_KQUEUE 994#if EV_USE_KQUEUE
739 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 995 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
740#endif 996#endif
741#if EV_USE_EPOLL 997#if EV_USE_EPOLL
742 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 998 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
743#endif 999#endif
744#if EV_USE_POLL 1000#if EV_USE_POLL
745 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1001 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
746#endif 1002#endif
747#if EV_USE_SELECT 1003#if EV_USE_SELECT
748 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1004 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
749#endif 1005#endif
750 1006
751 for (i = NUMPRI; i--; ) 1007 for (i = NUMPRI; i--; )
1008 {
752 array_free (pending, [i]); 1009 array_free (pending, [i]);
1010#if EV_IDLE_ENABLE
1011 array_free (idle, [i]);
1012#endif
1013 }
753 1014
754 /* have to use the microsoft-never-gets-it-right macro */ 1015 /* have to use the microsoft-never-gets-it-right macro */
755 array_free_microshit (fdchange); 1016 array_free (fdchange, EMPTY);
756 array_free_microshit (timer); 1017 array_free (timer, EMPTY);
757 array_free_microshit (periodic); 1018#if EV_PERIODIC_ENABLE
758 array_free_microshit (idle); 1019 array_free (periodic, EMPTY);
759 array_free_microshit (prepare); 1020#endif
760 array_free_microshit (check); 1021 array_free (prepare, EMPTY);
1022 array_free (check, EMPTY);
761 1023
762 method = 0; 1024 backend = 0;
763} 1025}
764 1026
765static void 1027void inline_size infy_fork (EV_P);
1028
1029void inline_size
766loop_fork (EV_P) 1030loop_fork (EV_P)
767{ 1031{
1032#if EV_USE_PORT
1033 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1034#endif
1035#if EV_USE_KQUEUE
1036 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1037#endif
768#if EV_USE_EPOLL 1038#if EV_USE_EPOLL
769 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1039 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
770#endif 1040#endif
771#if EV_USE_KQUEUE 1041#if EV_USE_INOTIFY
772 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1042 infy_fork (EV_A);
773#endif 1043#endif
774 1044
775 if (ev_is_active (&sigev)) 1045 if (ev_is_active (&sigev))
776 { 1046 {
777 /* default loop */ 1047 /* default loop */
… …
790 postfork = 0; 1060 postfork = 0;
791} 1061}
792 1062
793#if EV_MULTIPLICITY 1063#if EV_MULTIPLICITY
794struct ev_loop * 1064struct ev_loop *
795ev_loop_new (int methods) 1065ev_loop_new (unsigned int flags)
796{ 1066{
797 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1067 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
798 1068
799 memset (loop, 0, sizeof (struct ev_loop)); 1069 memset (loop, 0, sizeof (struct ev_loop));
800 1070
801 loop_init (EV_A_ methods); 1071 loop_init (EV_A_ flags);
802 1072
803 if (ev_method (EV_A)) 1073 if (ev_backend (EV_A))
804 return loop; 1074 return loop;
805 1075
806 return 0; 1076 return 0;
807} 1077}
808 1078
… …
820} 1090}
821 1091
822#endif 1092#endif
823 1093
824#if EV_MULTIPLICITY 1094#if EV_MULTIPLICITY
825struct ev_loop default_loop_struct;
826static struct ev_loop *default_loop;
827
828struct ev_loop * 1095struct ev_loop *
1096ev_default_loop_init (unsigned int flags)
829#else 1097#else
830static int default_loop;
831
832int 1098int
1099ev_default_loop (unsigned int flags)
833#endif 1100#endif
834ev_default_loop (int methods)
835{ 1101{
836 if (sigpipe [0] == sigpipe [1]) 1102 if (sigpipe [0] == sigpipe [1])
837 if (pipe (sigpipe)) 1103 if (pipe (sigpipe))
838 return 0; 1104 return 0;
839 1105
840 if (!default_loop) 1106 if (!ev_default_loop_ptr)
841 { 1107 {
842#if EV_MULTIPLICITY 1108#if EV_MULTIPLICITY
843 struct ev_loop *loop = default_loop = &default_loop_struct; 1109 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
844#else 1110#else
845 default_loop = 1; 1111 ev_default_loop_ptr = 1;
846#endif 1112#endif
847 1113
848 loop_init (EV_A_ methods); 1114 loop_init (EV_A_ flags);
849 1115
850 if (ev_method (EV_A)) 1116 if (ev_backend (EV_A))
851 { 1117 {
852 siginit (EV_A); 1118 siginit (EV_A);
853 1119
854#ifndef WIN32 1120#ifndef _WIN32
855 ev_signal_init (&childev, childcb, SIGCHLD); 1121 ev_signal_init (&childev, childcb, SIGCHLD);
856 ev_set_priority (&childev, EV_MAXPRI); 1122 ev_set_priority (&childev, EV_MAXPRI);
857 ev_signal_start (EV_A_ &childev); 1123 ev_signal_start (EV_A_ &childev);
858 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1124 ev_unref (EV_A); /* child watcher should not keep loop alive */
859#endif 1125#endif
860 } 1126 }
861 else 1127 else
862 default_loop = 0; 1128 ev_default_loop_ptr = 0;
863 } 1129 }
864 1130
865 return default_loop; 1131 return ev_default_loop_ptr;
866} 1132}
867 1133
868void 1134void
869ev_default_destroy (void) 1135ev_default_destroy (void)
870{ 1136{
871#if EV_MULTIPLICITY 1137#if EV_MULTIPLICITY
872 struct ev_loop *loop = default_loop; 1138 struct ev_loop *loop = ev_default_loop_ptr;
873#endif 1139#endif
874 1140
875#ifndef WIN32 1141#ifndef _WIN32
876 ev_ref (EV_A); /* child watcher */ 1142 ev_ref (EV_A); /* child watcher */
877 ev_signal_stop (EV_A_ &childev); 1143 ev_signal_stop (EV_A_ &childev);
878#endif 1144#endif
879 1145
880 ev_ref (EV_A); /* signal watcher */ 1146 ev_ref (EV_A); /* signal watcher */
… …
888 1154
889void 1155void
890ev_default_fork (void) 1156ev_default_fork (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 if (method) 1162 if (backend)
897 postfork = 1; 1163 postfork = 1;
898} 1164}
899 1165
900/*****************************************************************************/ 1166/*****************************************************************************/
901 1167
902static void 1168void inline_speed
903call_pending (EV_P) 1169call_pending (EV_P)
904{ 1170{
905 int pri; 1171 int pri;
906 1172
907 for (pri = NUMPRI; pri--; ) 1173 for (pri = NUMPRI; pri--; )
908 while (pendingcnt [pri]) 1174 while (pendingcnt [pri])
909 { 1175 {
910 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1176 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
911 1177
912 if (p->w) 1178 if (expect_true (p->w))
913 { 1179 {
1180 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1181
914 p->w->pending = 0; 1182 p->w->pending = 0;
915 p->w->cb (EV_A_ p->w, p->events); 1183 EV_CB_INVOKE (p->w, p->events);
916 } 1184 }
917 } 1185 }
918} 1186}
919 1187
920static void 1188void inline_size
921timers_reify (EV_P) 1189timers_reify (EV_P)
922{ 1190{
923 while (timercnt && ((WT)timers [0])->at <= mn_now) 1191 while (timercnt && ((WT)timers [0])->at <= mn_now)
924 { 1192 {
925 struct ev_timer *w = timers [0]; 1193 ev_timer *w = timers [0];
926 1194
927 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1195 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
928 1196
929 /* first reschedule or stop timer */ 1197 /* first reschedule or stop timer */
930 if (w->repeat) 1198 if (w->repeat)
931 { 1199 {
932 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1200 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1201
933 ((WT)w)->at = mn_now + w->repeat; 1202 ((WT)w)->at += w->repeat;
1203 if (((WT)w)->at < mn_now)
1204 ((WT)w)->at = mn_now;
1205
934 downheap ((WT *)timers, timercnt, 0); 1206 downheap ((WT *)timers, timercnt, 0);
935 } 1207 }
936 else 1208 else
937 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1209 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
938 1210
939 event (EV_A_ (W)w, EV_TIMEOUT); 1211 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
940 } 1212 }
941} 1213}
942 1214
943static void 1215#if EV_PERIODIC_ENABLE
1216void inline_size
944periodics_reify (EV_P) 1217periodics_reify (EV_P)
945{ 1218{
946 while (periodiccnt && ((WT)periodics [0])->at <= rt_now) 1219 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
947 { 1220 {
948 struct ev_periodic *w = periodics [0]; 1221 ev_periodic *w = periodics [0];
949 1222
950 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1223 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
951 1224
952 /* first reschedule or stop timer */ 1225 /* first reschedule or stop timer */
953 if (w->interval) 1226 if (w->reschedule_cb)
954 { 1227 {
1228 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1229 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1230 downheap ((WT *)periodics, periodiccnt, 0);
1231 }
1232 else if (w->interval)
1233 {
955 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1234 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
956 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); 1235 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
957 downheap ((WT *)periodics, periodiccnt, 0); 1236 downheap ((WT *)periodics, periodiccnt, 0);
958 } 1237 }
959 else 1238 else
960 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1239 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
961 1240
962 event (EV_A_ (W)w, EV_PERIODIC); 1241 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
963 } 1242 }
964} 1243}
965 1244
966static void 1245static void noinline
967periodics_reschedule (EV_P) 1246periodics_reschedule (EV_P)
968{ 1247{
969 int i; 1248 int i;
970 1249
971 /* adjust periodics after time jump */ 1250 /* adjust periodics after time jump */
972 for (i = 0; i < periodiccnt; ++i) 1251 for (i = 0; i < periodiccnt; ++i)
973 { 1252 {
974 struct ev_periodic *w = periodics [i]; 1253 ev_periodic *w = periodics [i];
975 1254
1255 if (w->reschedule_cb)
1256 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
976 if (w->interval) 1257 else if (w->interval)
1258 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1259 }
1260
1261 /* now rebuild the heap */
1262 for (i = periodiccnt >> 1; i--; )
1263 downheap ((WT *)periodics, periodiccnt, i);
1264}
1265#endif
1266
1267#if EV_IDLE_ENABLE
1268void inline_size
1269idle_reify (EV_P)
1270{
1271 if (expect_false (idleall))
1272 {
1273 int pri;
1274
1275 for (pri = NUMPRI; pri--; )
977 { 1276 {
978 ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1277 if (pendingcnt [pri])
1278 break;
979 1279
980 if (fabs (diff) >= 1e-4) 1280 if (idlecnt [pri])
981 { 1281 {
982 ev_periodic_stop (EV_A_ w); 1282 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
983 ev_periodic_start (EV_A_ w); 1283 break;
984
985 i = 0; /* restart loop, inefficient, but time jumps should be rare */
986 } 1284 }
987 } 1285 }
988 } 1286 }
989} 1287}
1288#endif
990 1289
991inline int 1290int inline_size
992time_update_monotonic (EV_P) 1291time_update_monotonic (EV_P)
993{ 1292{
994 mn_now = get_clock (); 1293 mn_now = get_clock ();
995 1294
996 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1295 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
997 { 1296 {
998 rt_now = rtmn_diff + mn_now; 1297 ev_rt_now = rtmn_diff + mn_now;
999 return 0; 1298 return 0;
1000 } 1299 }
1001 else 1300 else
1002 { 1301 {
1003 now_floor = mn_now; 1302 now_floor = mn_now;
1004 rt_now = ev_time (); 1303 ev_rt_now = ev_time ();
1005 return 1; 1304 return 1;
1006 } 1305 }
1007} 1306}
1008 1307
1009static void 1308void inline_size
1010time_update (EV_P) 1309time_update (EV_P)
1011{ 1310{
1012 int i; 1311 int i;
1013 1312
1014#if EV_USE_MONOTONIC 1313#if EV_USE_MONOTONIC
… …
1016 { 1315 {
1017 if (time_update_monotonic (EV_A)) 1316 if (time_update_monotonic (EV_A))
1018 { 1317 {
1019 ev_tstamp odiff = rtmn_diff; 1318 ev_tstamp odiff = rtmn_diff;
1020 1319
1021 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1320 /* loop a few times, before making important decisions.
1321 * on the choice of "4": one iteration isn't enough,
1322 * in case we get preempted during the calls to
1323 * ev_time and get_clock. a second call is almost guaranteed
1324 * to succeed in that case, though. and looping a few more times
1325 * doesn't hurt either as we only do this on time-jumps or
1326 * in the unlikely event of having been preempted here.
1327 */
1328 for (i = 4; --i; )
1022 { 1329 {
1023 rtmn_diff = rt_now - mn_now; 1330 rtmn_diff = ev_rt_now - mn_now;
1024 1331
1025 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1332 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1026 return; /* all is well */ 1333 return; /* all is well */
1027 1334
1028 rt_now = ev_time (); 1335 ev_rt_now = ev_time ();
1029 mn_now = get_clock (); 1336 mn_now = get_clock ();
1030 now_floor = mn_now; 1337 now_floor = mn_now;
1031 } 1338 }
1032 1339
1340# if EV_PERIODIC_ENABLE
1033 periodics_reschedule (EV_A); 1341 periodics_reschedule (EV_A);
1342# endif
1034 /* no timer adjustment, as the monotonic clock doesn't jump */ 1343 /* no timer adjustment, as the monotonic clock doesn't jump */
1035 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1344 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1036 } 1345 }
1037 } 1346 }
1038 else 1347 else
1039#endif 1348#endif
1040 { 1349 {
1041 rt_now = ev_time (); 1350 ev_rt_now = ev_time ();
1042 1351
1043 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1352 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1044 { 1353 {
1354#if EV_PERIODIC_ENABLE
1045 periodics_reschedule (EV_A); 1355 periodics_reschedule (EV_A);
1356#endif
1046 1357
1047 /* adjust timers. this is easy, as the offset is the same for all */ 1358 /* adjust timers. this is easy, as the offset is the same for all of them */
1048 for (i = 0; i < timercnt; ++i) 1359 for (i = 0; i < timercnt; ++i)
1049 ((WT)timers [i])->at += rt_now - mn_now; 1360 ((WT)timers [i])->at += ev_rt_now - mn_now;
1050 } 1361 }
1051 1362
1052 mn_now = rt_now; 1363 mn_now = ev_rt_now;
1053 } 1364 }
1054} 1365}
1055 1366
1056void 1367void
1057ev_ref (EV_P) 1368ev_ref (EV_P)
… …
1068static int loop_done; 1379static int loop_done;
1069 1380
1070void 1381void
1071ev_loop (EV_P_ int flags) 1382ev_loop (EV_P_ int flags)
1072{ 1383{
1073 double block;
1074 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1384 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1385 ? EVUNLOOP_ONE
1386 : EVUNLOOP_CANCEL;
1387
1388 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1075 1389
1076 do 1390 do
1077 { 1391 {
1392#ifndef _WIN32
1393 if (expect_false (curpid)) /* penalise the forking check even more */
1394 if (expect_false (getpid () != curpid))
1395 {
1396 curpid = getpid ();
1397 postfork = 1;
1398 }
1399#endif
1400
1401#if EV_FORK_ENABLE
1402 /* we might have forked, so queue fork handlers */
1403 if (expect_false (postfork))
1404 if (forkcnt)
1405 {
1406 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1407 call_pending (EV_A);
1408 }
1409#endif
1410
1078 /* queue check watchers (and execute them) */ 1411 /* queue check watchers (and execute them) */
1079 if (expect_false (preparecnt)) 1412 if (expect_false (preparecnt))
1080 { 1413 {
1081 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1414 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1082 call_pending (EV_A); 1415 call_pending (EV_A);
1083 } 1416 }
1084 1417
1418 if (expect_false (!activecnt))
1419 break;
1420
1085 /* we might have forked, so reify kernel state if necessary */ 1421 /* we might have forked, so reify kernel state if necessary */
1086 if (expect_false (postfork)) 1422 if (expect_false (postfork))
1087 loop_fork (EV_A); 1423 loop_fork (EV_A);
1088 1424
1089 /* update fd-related kernel structures */ 1425 /* update fd-related kernel structures */
1090 fd_reify (EV_A); 1426 fd_reify (EV_A);
1091 1427
1092 /* calculate blocking time */ 1428 /* calculate blocking time */
1429 {
1430 ev_tstamp block;
1093 1431
1094 /* we only need this for !monotonic clockor timers, but as we basically 1432 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1095 always have timers, we just calculate it always */ 1433 block = 0.; /* do not block at all */
1434 else
1435 {
1436 /* update time to cancel out callback processing overhead */
1096#if EV_USE_MONOTONIC 1437#if EV_USE_MONOTONIC
1097 if (expect_true (have_monotonic)) 1438 if (expect_true (have_monotonic))
1098 time_update_monotonic (EV_A); 1439 time_update_monotonic (EV_A);
1099 else 1440 else
1100#endif 1441#endif
1101 { 1442 {
1102 rt_now = ev_time (); 1443 ev_rt_now = ev_time ();
1103 mn_now = rt_now; 1444 mn_now = ev_rt_now;
1104 } 1445 }
1105 1446
1106 if (flags & EVLOOP_NONBLOCK || idlecnt)
1107 block = 0.;
1108 else
1109 {
1110 block = MAX_BLOCKTIME; 1447 block = MAX_BLOCKTIME;
1111 1448
1112 if (timercnt) 1449 if (timercnt)
1113 { 1450 {
1114 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1451 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1115 if (block > to) block = to; 1452 if (block > to) block = to;
1116 } 1453 }
1117 1454
1455#if EV_PERIODIC_ENABLE
1118 if (periodiccnt) 1456 if (periodiccnt)
1119 { 1457 {
1120 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; 1458 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1121 if (block > to) block = to; 1459 if (block > to) block = to;
1122 } 1460 }
1461#endif
1123 1462
1124 if (block < 0.) block = 0.; 1463 if (expect_false (block < 0.)) block = 0.;
1125 } 1464 }
1126 1465
1466 ++loop_count;
1127 method_poll (EV_A_ block); 1467 backend_poll (EV_A_ block);
1468 }
1128 1469
1129 /* update rt_now, do magic */ 1470 /* update ev_rt_now, do magic */
1130 time_update (EV_A); 1471 time_update (EV_A);
1131 1472
1132 /* queue pending timers and reschedule them */ 1473 /* queue pending timers and reschedule them */
1133 timers_reify (EV_A); /* relative timers called last */ 1474 timers_reify (EV_A); /* relative timers called last */
1475#if EV_PERIODIC_ENABLE
1134 periodics_reify (EV_A); /* absolute timers called first */ 1476 periodics_reify (EV_A); /* absolute timers called first */
1477#endif
1135 1478
1479#if EV_IDLE_ENABLE
1136 /* queue idle watchers unless io or timers are pending */ 1480 /* queue idle watchers unless other events are pending */
1137 if (!pendingcnt) 1481 idle_reify (EV_A);
1138 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1482#endif
1139 1483
1140 /* queue check watchers, to be executed first */ 1484 /* queue check watchers, to be executed first */
1141 if (checkcnt) 1485 if (expect_false (checkcnt))
1142 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1486 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1143 1487
1144 call_pending (EV_A); 1488 call_pending (EV_A);
1489
1145 } 1490 }
1146 while (activecnt && !loop_done); 1491 while (expect_true (activecnt && !loop_done));
1147 1492
1148 if (loop_done != 2) 1493 if (loop_done == EVUNLOOP_ONE)
1149 loop_done = 0; 1494 loop_done = EVUNLOOP_CANCEL;
1150} 1495}
1151 1496
1152void 1497void
1153ev_unloop (EV_P_ int how) 1498ev_unloop (EV_P_ int how)
1154{ 1499{
1155 loop_done = how; 1500 loop_done = how;
1156} 1501}
1157 1502
1158/*****************************************************************************/ 1503/*****************************************************************************/
1159 1504
1160inline void 1505void inline_size
1161wlist_add (WL *head, WL elem) 1506wlist_add (WL *head, WL elem)
1162{ 1507{
1163 elem->next = *head; 1508 elem->next = *head;
1164 *head = elem; 1509 *head = elem;
1165} 1510}
1166 1511
1167inline void 1512void inline_size
1168wlist_del (WL *head, WL elem) 1513wlist_del (WL *head, WL elem)
1169{ 1514{
1170 while (*head) 1515 while (*head)
1171 { 1516 {
1172 if (*head == elem) 1517 if (*head == elem)
… …
1177 1522
1178 head = &(*head)->next; 1523 head = &(*head)->next;
1179 } 1524 }
1180} 1525}
1181 1526
1182inline void 1527void inline_speed
1183ev_clear_pending (EV_P_ W w) 1528clear_pending (EV_P_ W w)
1184{ 1529{
1185 if (w->pending) 1530 if (w->pending)
1186 { 1531 {
1187 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1532 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1188 w->pending = 0; 1533 w->pending = 0;
1189 } 1534 }
1190} 1535}
1191 1536
1192inline void 1537void
1538ev_clear_pending (EV_P_ void *w, int invoke)
1539{
1540 W w_ = (W)w;
1541 int pending = w_->pending;
1542
1543 if (pending)
1544 {
1545 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
1546
1547 w_->pending = 0;
1548 p->w = 0;
1549
1550 if (invoke)
1551 EV_CB_INVOKE (w_, p->events);
1552 }
1553}
1554
1555void inline_size
1556pri_adjust (EV_P_ W w)
1557{
1558 int pri = w->priority;
1559 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1560 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1561 w->priority = pri;
1562}
1563
1564void inline_speed
1193ev_start (EV_P_ W w, int active) 1565ev_start (EV_P_ W w, int active)
1194{ 1566{
1195 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1567 pri_adjust (EV_A_ w);
1196 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1197
1198 w->active = active; 1568 w->active = active;
1199 ev_ref (EV_A); 1569 ev_ref (EV_A);
1200} 1570}
1201 1571
1202inline void 1572void inline_size
1203ev_stop (EV_P_ W w) 1573ev_stop (EV_P_ W w)
1204{ 1574{
1205 ev_unref (EV_A); 1575 ev_unref (EV_A);
1206 w->active = 0; 1576 w->active = 0;
1207} 1577}
1208 1578
1209/*****************************************************************************/ 1579/*****************************************************************************/
1210 1580
1211void 1581void
1212ev_io_start (EV_P_ struct ev_io *w) 1582ev_io_start (EV_P_ ev_io *w)
1213{ 1583{
1214 int fd = w->fd; 1584 int fd = w->fd;
1215 1585
1216 if (ev_is_active (w)) 1586 if (expect_false (ev_is_active (w)))
1217 return; 1587 return;
1218 1588
1219 assert (("ev_io_start called with negative fd", fd >= 0)); 1589 assert (("ev_io_start called with negative fd", fd >= 0));
1220 1590
1221 ev_start (EV_A_ (W)w, 1); 1591 ev_start (EV_A_ (W)w, 1);
… …
1224 1594
1225 fd_change (EV_A_ fd); 1595 fd_change (EV_A_ fd);
1226} 1596}
1227 1597
1228void 1598void
1229ev_io_stop (EV_P_ struct ev_io *w) 1599ev_io_stop (EV_P_ ev_io *w)
1230{ 1600{
1231 ev_clear_pending (EV_A_ (W)w); 1601 clear_pending (EV_A_ (W)w);
1232 if (!ev_is_active (w)) 1602 if (expect_false (!ev_is_active (w)))
1233 return; 1603 return;
1604
1605 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1234 1606
1235 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1607 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1236 ev_stop (EV_A_ (W)w); 1608 ev_stop (EV_A_ (W)w);
1237 1609
1238 fd_change (EV_A_ w->fd); 1610 fd_change (EV_A_ w->fd);
1239} 1611}
1240 1612
1241void 1613void
1242ev_timer_start (EV_P_ struct ev_timer *w) 1614ev_timer_start (EV_P_ ev_timer *w)
1243{ 1615{
1244 if (ev_is_active (w)) 1616 if (expect_false (ev_is_active (w)))
1245 return; 1617 return;
1246 1618
1247 ((WT)w)->at += mn_now; 1619 ((WT)w)->at += mn_now;
1248 1620
1249 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1621 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1250 1622
1251 ev_start (EV_A_ (W)w, ++timercnt); 1623 ev_start (EV_A_ (W)w, ++timercnt);
1252 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1624 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1253 timers [timercnt - 1] = w; 1625 timers [timercnt - 1] = w;
1254 upheap ((WT *)timers, timercnt - 1); 1626 upheap ((WT *)timers, timercnt - 1);
1255 1627
1628 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1629}
1630
1631void
1632ev_timer_stop (EV_P_ ev_timer *w)
1633{
1634 clear_pending (EV_A_ (W)w);
1635 if (expect_false (!ev_is_active (w)))
1636 return;
1637
1256 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1638 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1257}
1258 1639
1259void 1640 {
1260ev_timer_stop (EV_P_ struct ev_timer *w) 1641 int active = ((W)w)->active;
1261{
1262 ev_clear_pending (EV_A_ (W)w);
1263 if (!ev_is_active (w))
1264 return;
1265 1642
1266 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1643 if (expect_true (--active < --timercnt))
1267
1268 if (((W)w)->active < timercnt--)
1269 { 1644 {
1270 timers [((W)w)->active - 1] = timers [timercnt]; 1645 timers [active] = timers [timercnt];
1271 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1646 adjustheap ((WT *)timers, timercnt, active);
1272 } 1647 }
1648 }
1273 1649
1274 ((WT)w)->at = w->repeat; 1650 ((WT)w)->at -= mn_now;
1275 1651
1276 ev_stop (EV_A_ (W)w); 1652 ev_stop (EV_A_ (W)w);
1277} 1653}
1278 1654
1279void 1655void
1280ev_timer_again (EV_P_ struct ev_timer *w) 1656ev_timer_again (EV_P_ ev_timer *w)
1281{ 1657{
1282 if (ev_is_active (w)) 1658 if (ev_is_active (w))
1283 { 1659 {
1284 if (w->repeat) 1660 if (w->repeat)
1285 { 1661 {
1286 ((WT)w)->at = mn_now + w->repeat; 1662 ((WT)w)->at = mn_now + w->repeat;
1287 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1663 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1288 } 1664 }
1289 else 1665 else
1290 ev_timer_stop (EV_A_ w); 1666 ev_timer_stop (EV_A_ w);
1291 } 1667 }
1292 else if (w->repeat) 1668 else if (w->repeat)
1669 {
1670 w->at = w->repeat;
1293 ev_timer_start (EV_A_ w); 1671 ev_timer_start (EV_A_ w);
1672 }
1294} 1673}
1295 1674
1675#if EV_PERIODIC_ENABLE
1296void 1676void
1297ev_periodic_start (EV_P_ struct ev_periodic *w) 1677ev_periodic_start (EV_P_ ev_periodic *w)
1298{ 1678{
1299 if (ev_is_active (w)) 1679 if (expect_false (ev_is_active (w)))
1300 return; 1680 return;
1301 1681
1682 if (w->reschedule_cb)
1683 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1684 else if (w->interval)
1685 {
1302 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1686 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1303
1304 /* this formula differs from the one in periodic_reify because we do not always round up */ 1687 /* this formula differs from the one in periodic_reify because we do not always round up */
1305 if (w->interval)
1306 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1688 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1689 }
1307 1690
1308 ev_start (EV_A_ (W)w, ++periodiccnt); 1691 ev_start (EV_A_ (W)w, ++periodiccnt);
1309 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1692 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1310 periodics [periodiccnt - 1] = w; 1693 periodics [periodiccnt - 1] = w;
1311 upheap ((WT *)periodics, periodiccnt - 1); 1694 upheap ((WT *)periodics, periodiccnt - 1);
1312 1695
1696 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1697}
1698
1699void
1700ev_periodic_stop (EV_P_ ev_periodic *w)
1701{
1702 clear_pending (EV_A_ (W)w);
1703 if (expect_false (!ev_is_active (w)))
1704 return;
1705
1313 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1706 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1314}
1315 1707
1316void 1708 {
1317ev_periodic_stop (EV_P_ struct ev_periodic *w) 1709 int active = ((W)w)->active;
1318{
1319 ev_clear_pending (EV_A_ (W)w);
1320 if (!ev_is_active (w))
1321 return;
1322 1710
1323 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1711 if (expect_true (--active < --periodiccnt))
1324
1325 if (((W)w)->active < periodiccnt--)
1326 { 1712 {
1327 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1713 periodics [active] = periodics [periodiccnt];
1328 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1714 adjustheap ((WT *)periodics, periodiccnt, active);
1329 } 1715 }
1716 }
1330 1717
1331 ev_stop (EV_A_ (W)w); 1718 ev_stop (EV_A_ (W)w);
1332} 1719}
1333 1720
1334void 1721void
1335ev_idle_start (EV_P_ struct ev_idle *w) 1722ev_periodic_again (EV_P_ ev_periodic *w)
1336{ 1723{
1337 if (ev_is_active (w)) 1724 /* TODO: use adjustheap and recalculation */
1338 return;
1339
1340 ev_start (EV_A_ (W)w, ++idlecnt);
1341 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1342 idles [idlecnt - 1] = w;
1343}
1344
1345void
1346ev_idle_stop (EV_P_ struct ev_idle *w)
1347{
1348 ev_clear_pending (EV_A_ (W)w);
1349 if (ev_is_active (w))
1350 return;
1351
1352 idles [((W)w)->active - 1] = idles [--idlecnt];
1353 ev_stop (EV_A_ (W)w); 1725 ev_periodic_stop (EV_A_ w);
1726 ev_periodic_start (EV_A_ w);
1354} 1727}
1355 1728#endif
1356void
1357ev_prepare_start (EV_P_ struct ev_prepare *w)
1358{
1359 if (ev_is_active (w))
1360 return;
1361
1362 ev_start (EV_A_ (W)w, ++preparecnt);
1363 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1364 prepares [preparecnt - 1] = w;
1365}
1366
1367void
1368ev_prepare_stop (EV_P_ struct ev_prepare *w)
1369{
1370 ev_clear_pending (EV_A_ (W)w);
1371 if (ev_is_active (w))
1372 return;
1373
1374 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1375 ev_stop (EV_A_ (W)w);
1376}
1377
1378void
1379ev_check_start (EV_P_ struct ev_check *w)
1380{
1381 if (ev_is_active (w))
1382 return;
1383
1384 ev_start (EV_A_ (W)w, ++checkcnt);
1385 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1386 checks [checkcnt - 1] = w;
1387}
1388
1389void
1390ev_check_stop (EV_P_ struct ev_check *w)
1391{
1392 ev_clear_pending (EV_A_ (W)w);
1393 if (ev_is_active (w))
1394 return;
1395
1396 checks [((W)w)->active - 1] = checks [--checkcnt];
1397 ev_stop (EV_A_ (W)w);
1398}
1399 1729
1400#ifndef SA_RESTART 1730#ifndef SA_RESTART
1401# define SA_RESTART 0 1731# define SA_RESTART 0
1402#endif 1732#endif
1403 1733
1404void 1734void
1405ev_signal_start (EV_P_ struct ev_signal *w) 1735ev_signal_start (EV_P_ ev_signal *w)
1406{ 1736{
1407#if EV_MULTIPLICITY 1737#if EV_MULTIPLICITY
1408 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1738 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1409#endif 1739#endif
1410 if (ev_is_active (w)) 1740 if (expect_false (ev_is_active (w)))
1411 return; 1741 return;
1412 1742
1413 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1743 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1414 1744
1415 ev_start (EV_A_ (W)w, 1); 1745 ev_start (EV_A_ (W)w, 1);
1416 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 1746 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1417 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1747 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1418 1748
1419 if (!((WL)w)->next) 1749 if (!((WL)w)->next)
1420 { 1750 {
1421#if WIN32 1751#if _WIN32
1422 signal (w->signum, sighandler); 1752 signal (w->signum, sighandler);
1423#else 1753#else
1424 struct sigaction sa; 1754 struct sigaction sa;
1425 sa.sa_handler = sighandler; 1755 sa.sa_handler = sighandler;
1426 sigfillset (&sa.sa_mask); 1756 sigfillset (&sa.sa_mask);
… …
1429#endif 1759#endif
1430 } 1760 }
1431} 1761}
1432 1762
1433void 1763void
1434ev_signal_stop (EV_P_ struct ev_signal *w) 1764ev_signal_stop (EV_P_ ev_signal *w)
1435{ 1765{
1436 ev_clear_pending (EV_A_ (W)w); 1766 clear_pending (EV_A_ (W)w);
1437 if (!ev_is_active (w)) 1767 if (expect_false (!ev_is_active (w)))
1438 return; 1768 return;
1439 1769
1440 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1770 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1441 ev_stop (EV_A_ (W)w); 1771 ev_stop (EV_A_ (W)w);
1442 1772
1443 if (!signals [w->signum - 1].head) 1773 if (!signals [w->signum - 1].head)
1444 signal (w->signum, SIG_DFL); 1774 signal (w->signum, SIG_DFL);
1445} 1775}
1446 1776
1447void 1777void
1448ev_child_start (EV_P_ struct ev_child *w) 1778ev_child_start (EV_P_ ev_child *w)
1449{ 1779{
1450#if EV_MULTIPLICITY 1780#if EV_MULTIPLICITY
1451 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1781 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1452#endif 1782#endif
1453 if (ev_is_active (w)) 1783 if (expect_false (ev_is_active (w)))
1454 return; 1784 return;
1455 1785
1456 ev_start (EV_A_ (W)w, 1); 1786 ev_start (EV_A_ (W)w, 1);
1457 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1787 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1458} 1788}
1459 1789
1460void 1790void
1461ev_child_stop (EV_P_ struct ev_child *w) 1791ev_child_stop (EV_P_ ev_child *w)
1462{ 1792{
1463 ev_clear_pending (EV_A_ (W)w); 1793 clear_pending (EV_A_ (W)w);
1464 if (ev_is_active (w)) 1794 if (expect_false (!ev_is_active (w)))
1465 return; 1795 return;
1466 1796
1467 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1797 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1468 ev_stop (EV_A_ (W)w); 1798 ev_stop (EV_A_ (W)w);
1469} 1799}
1470 1800
1801#if EV_STAT_ENABLE
1802
1803# ifdef _WIN32
1804# undef lstat
1805# define lstat(a,b) _stati64 (a,b)
1806# endif
1807
1808#define DEF_STAT_INTERVAL 5.0074891
1809#define MIN_STAT_INTERVAL 0.1074891
1810
1811static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1812
1813#if EV_USE_INOTIFY
1814# define EV_INOTIFY_BUFSIZE 8192
1815
1816static void noinline
1817infy_add (EV_P_ ev_stat *w)
1818{
1819 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);
1820
1821 if (w->wd < 0)
1822 {
1823 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1824
1825 /* monitor some parent directory for speedup hints */
1826 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1827 {
1828 char path [4096];
1829 strcpy (path, w->path);
1830
1831 do
1832 {
1833 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1834 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1835
1836 char *pend = strrchr (path, '/');
1837
1838 if (!pend)
1839 break; /* whoops, no '/', complain to your admin */
1840
1841 *pend = 0;
1842 w->wd = inotify_add_watch (fs_fd, path, mask);
1843 }
1844 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1845 }
1846 }
1847 else
1848 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1849
1850 if (w->wd >= 0)
1851 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1852}
1853
1854static void noinline
1855infy_del (EV_P_ ev_stat *w)
1856{
1857 int slot;
1858 int wd = w->wd;
1859
1860 if (wd < 0)
1861 return;
1862
1863 w->wd = -2;
1864 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1865 wlist_del (&fs_hash [slot].head, (WL)w);
1866
1867 /* remove this watcher, if others are watching it, they will rearm */
1868 inotify_rm_watch (fs_fd, wd);
1869}
1870
1871static void noinline
1872infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1873{
1874 if (slot < 0)
1875 /* overflow, need to check for all hahs slots */
1876 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1877 infy_wd (EV_A_ slot, wd, ev);
1878 else
1879 {
1880 WL w_;
1881
1882 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1883 {
1884 ev_stat *w = (ev_stat *)w_;
1885 w_ = w_->next; /* lets us remove this watcher and all before it */
1886
1887 if (w->wd == wd || wd == -1)
1888 {
1889 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1890 {
1891 w->wd = -1;
1892 infy_add (EV_A_ w); /* re-add, no matter what */
1893 }
1894
1895 stat_timer_cb (EV_A_ &w->timer, 0);
1896 }
1897 }
1898 }
1899}
1900
1901static void
1902infy_cb (EV_P_ ev_io *w, int revents)
1903{
1904 char buf [EV_INOTIFY_BUFSIZE];
1905 struct inotify_event *ev = (struct inotify_event *)buf;
1906 int ofs;
1907 int len = read (fs_fd, buf, sizeof (buf));
1908
1909 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1910 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1911}
1912
1913void inline_size
1914infy_init (EV_P)
1915{
1916 if (fs_fd != -2)
1917 return;
1918
1919 fs_fd = inotify_init ();
1920
1921 if (fs_fd >= 0)
1922 {
1923 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1924 ev_set_priority (&fs_w, EV_MAXPRI);
1925 ev_io_start (EV_A_ &fs_w);
1926 }
1927}
1928
1929void inline_size
1930infy_fork (EV_P)
1931{
1932 int slot;
1933
1934 if (fs_fd < 0)
1935 return;
1936
1937 close (fs_fd);
1938 fs_fd = inotify_init ();
1939
1940 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1941 {
1942 WL w_ = fs_hash [slot].head;
1943 fs_hash [slot].head = 0;
1944
1945 while (w_)
1946 {
1947 ev_stat *w = (ev_stat *)w_;
1948 w_ = w_->next; /* lets us add this watcher */
1949
1950 w->wd = -1;
1951
1952 if (fs_fd >= 0)
1953 infy_add (EV_A_ w); /* re-add, no matter what */
1954 else
1955 ev_timer_start (EV_A_ &w->timer);
1956 }
1957
1958 }
1959}
1960
1961#endif
1962
1963void
1964ev_stat_stat (EV_P_ ev_stat *w)
1965{
1966 if (lstat (w->path, &w->attr) < 0)
1967 w->attr.st_nlink = 0;
1968 else if (!w->attr.st_nlink)
1969 w->attr.st_nlink = 1;
1970}
1971
1972static void noinline
1973stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1974{
1975 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1976
1977 /* we copy this here each the time so that */
1978 /* prev has the old value when the callback gets invoked */
1979 w->prev = w->attr;
1980 ev_stat_stat (EV_A_ w);
1981
1982 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
1983 if (
1984 w->prev.st_dev != w->attr.st_dev
1985 || w->prev.st_ino != w->attr.st_ino
1986 || w->prev.st_mode != w->attr.st_mode
1987 || w->prev.st_nlink != w->attr.st_nlink
1988 || w->prev.st_uid != w->attr.st_uid
1989 || w->prev.st_gid != w->attr.st_gid
1990 || w->prev.st_rdev != w->attr.st_rdev
1991 || w->prev.st_size != w->attr.st_size
1992 || w->prev.st_atime != w->attr.st_atime
1993 || w->prev.st_mtime != w->attr.st_mtime
1994 || w->prev.st_ctime != w->attr.st_ctime
1995 ) {
1996 #if EV_USE_INOTIFY
1997 infy_del (EV_A_ w);
1998 infy_add (EV_A_ w);
1999 ev_stat_stat (EV_A_ w); /* avoid race... */
2000 #endif
2001
2002 ev_feed_event (EV_A_ w, EV_STAT);
2003 }
2004}
2005
2006void
2007ev_stat_start (EV_P_ ev_stat *w)
2008{
2009 if (expect_false (ev_is_active (w)))
2010 return;
2011
2012 /* since we use memcmp, we need to clear any padding data etc. */
2013 memset (&w->prev, 0, sizeof (ev_statdata));
2014 memset (&w->attr, 0, sizeof (ev_statdata));
2015
2016 ev_stat_stat (EV_A_ w);
2017
2018 if (w->interval < MIN_STAT_INTERVAL)
2019 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2020
2021 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2022 ev_set_priority (&w->timer, ev_priority (w));
2023
2024#if EV_USE_INOTIFY
2025 infy_init (EV_A);
2026
2027 if (fs_fd >= 0)
2028 infy_add (EV_A_ w);
2029 else
2030#endif
2031 ev_timer_start (EV_A_ &w->timer);
2032
2033 ev_start (EV_A_ (W)w, 1);
2034}
2035
2036void
2037ev_stat_stop (EV_P_ ev_stat *w)
2038{
2039 clear_pending (EV_A_ (W)w);
2040 if (expect_false (!ev_is_active (w)))
2041 return;
2042
2043#if EV_USE_INOTIFY
2044 infy_del (EV_A_ w);
2045#endif
2046 ev_timer_stop (EV_A_ &w->timer);
2047
2048 ev_stop (EV_A_ (W)w);
2049}
2050#endif
2051
2052#if EV_IDLE_ENABLE
2053void
2054ev_idle_start (EV_P_ ev_idle *w)
2055{
2056 if (expect_false (ev_is_active (w)))
2057 return;
2058
2059 pri_adjust (EV_A_ (W)w);
2060
2061 {
2062 int active = ++idlecnt [ABSPRI (w)];
2063
2064 ++idleall;
2065 ev_start (EV_A_ (W)w, active);
2066
2067 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2068 idles [ABSPRI (w)][active - 1] = w;
2069 }
2070}
2071
2072void
2073ev_idle_stop (EV_P_ ev_idle *w)
2074{
2075 clear_pending (EV_A_ (W)w);
2076 if (expect_false (!ev_is_active (w)))
2077 return;
2078
2079 {
2080 int active = ((W)w)->active;
2081
2082 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2083 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2084
2085 ev_stop (EV_A_ (W)w);
2086 --idleall;
2087 }
2088}
2089#endif
2090
2091void
2092ev_prepare_start (EV_P_ ev_prepare *w)
2093{
2094 if (expect_false (ev_is_active (w)))
2095 return;
2096
2097 ev_start (EV_A_ (W)w, ++preparecnt);
2098 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2099 prepares [preparecnt - 1] = w;
2100}
2101
2102void
2103ev_prepare_stop (EV_P_ ev_prepare *w)
2104{
2105 clear_pending (EV_A_ (W)w);
2106 if (expect_false (!ev_is_active (w)))
2107 return;
2108
2109 {
2110 int active = ((W)w)->active;
2111 prepares [active - 1] = prepares [--preparecnt];
2112 ((W)prepares [active - 1])->active = active;
2113 }
2114
2115 ev_stop (EV_A_ (W)w);
2116}
2117
2118void
2119ev_check_start (EV_P_ ev_check *w)
2120{
2121 if (expect_false (ev_is_active (w)))
2122 return;
2123
2124 ev_start (EV_A_ (W)w, ++checkcnt);
2125 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2126 checks [checkcnt - 1] = w;
2127}
2128
2129void
2130ev_check_stop (EV_P_ ev_check *w)
2131{
2132 clear_pending (EV_A_ (W)w);
2133 if (expect_false (!ev_is_active (w)))
2134 return;
2135
2136 {
2137 int active = ((W)w)->active;
2138 checks [active - 1] = checks [--checkcnt];
2139 ((W)checks [active - 1])->active = active;
2140 }
2141
2142 ev_stop (EV_A_ (W)w);
2143}
2144
2145#if EV_EMBED_ENABLE
2146void noinline
2147ev_embed_sweep (EV_P_ ev_embed *w)
2148{
2149 ev_loop (w->loop, EVLOOP_NONBLOCK);
2150}
2151
2152static void
2153embed_cb (EV_P_ ev_io *io, int revents)
2154{
2155 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2156
2157 if (ev_cb (w))
2158 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2159 else
2160 ev_embed_sweep (loop, w);
2161}
2162
2163void
2164ev_embed_start (EV_P_ ev_embed *w)
2165{
2166 if (expect_false (ev_is_active (w)))
2167 return;
2168
2169 {
2170 struct ev_loop *loop = w->loop;
2171 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2172 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2173 }
2174
2175 ev_set_priority (&w->io, ev_priority (w));
2176 ev_io_start (EV_A_ &w->io);
2177
2178 ev_start (EV_A_ (W)w, 1);
2179}
2180
2181void
2182ev_embed_stop (EV_P_ ev_embed *w)
2183{
2184 clear_pending (EV_A_ (W)w);
2185 if (expect_false (!ev_is_active (w)))
2186 return;
2187
2188 ev_io_stop (EV_A_ &w->io);
2189
2190 ev_stop (EV_A_ (W)w);
2191}
2192#endif
2193
2194#if EV_FORK_ENABLE
2195void
2196ev_fork_start (EV_P_ ev_fork *w)
2197{
2198 if (expect_false (ev_is_active (w)))
2199 return;
2200
2201 ev_start (EV_A_ (W)w, ++forkcnt);
2202 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2203 forks [forkcnt - 1] = w;
2204}
2205
2206void
2207ev_fork_stop (EV_P_ ev_fork *w)
2208{
2209 clear_pending (EV_A_ (W)w);
2210 if (expect_false (!ev_is_active (w)))
2211 return;
2212
2213 {
2214 int active = ((W)w)->active;
2215 forks [active - 1] = forks [--forkcnt];
2216 ((W)forks [active - 1])->active = active;
2217 }
2218
2219 ev_stop (EV_A_ (W)w);
2220}
2221#endif
2222
1471/*****************************************************************************/ 2223/*****************************************************************************/
1472 2224
1473struct ev_once 2225struct ev_once
1474{ 2226{
1475 struct ev_io io; 2227 ev_io io;
1476 struct ev_timer to; 2228 ev_timer to;
1477 void (*cb)(int revents, void *arg); 2229 void (*cb)(int revents, void *arg);
1478 void *arg; 2230 void *arg;
1479}; 2231};
1480 2232
1481static void 2233static void
… …
1490 2242
1491 cb (revents, arg); 2243 cb (revents, arg);
1492} 2244}
1493 2245
1494static void 2246static void
1495once_cb_io (EV_P_ struct ev_io *w, int revents) 2247once_cb_io (EV_P_ ev_io *w, int revents)
1496{ 2248{
1497 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2249 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1498} 2250}
1499 2251
1500static void 2252static void
1501once_cb_to (EV_P_ struct ev_timer *w, int revents) 2253once_cb_to (EV_P_ ev_timer *w, int revents)
1502{ 2254{
1503 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2255 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1504} 2256}
1505 2257
1506void 2258void
1507ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2259ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1508{ 2260{
1509 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2261 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1510 2262
1511 if (!once) 2263 if (expect_false (!once))
2264 {
1512 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2265 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1513 else 2266 return;
1514 { 2267 }
2268
1515 once->cb = cb; 2269 once->cb = cb;
1516 once->arg = arg; 2270 once->arg = arg;
1517 2271
1518 ev_watcher_init (&once->io, once_cb_io); 2272 ev_init (&once->io, once_cb_io);
1519 if (fd >= 0) 2273 if (fd >= 0)
1520 { 2274 {
1521 ev_io_set (&once->io, fd, events); 2275 ev_io_set (&once->io, fd, events);
1522 ev_io_start (EV_A_ &once->io); 2276 ev_io_start (EV_A_ &once->io);
1523 } 2277 }
1524 2278
1525 ev_watcher_init (&once->to, once_cb_to); 2279 ev_init (&once->to, once_cb_to);
1526 if (timeout >= 0.) 2280 if (timeout >= 0.)
1527 { 2281 {
1528 ev_timer_set (&once->to, timeout, 0.); 2282 ev_timer_set (&once->to, timeout, 0.);
1529 ev_timer_start (EV_A_ &once->to); 2283 ev_timer_start (EV_A_ &once->to);
1530 }
1531 } 2284 }
1532} 2285}
1533 2286
2287#ifdef __cplusplus
2288}
2289#endif
2290

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