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Comparing libev/ev.c (file contents):
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs.
Revision 1.164 by root, Fri Dec 7 16:44:10 2007 UTC

… …
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */ 30 */
31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
31#ifndef EV_STANDALONE 36#ifndef EV_STANDALONE
37# ifdef EV_CONFIG_H
38# include EV_CONFIG_H
39# else
32# include "config.h" 40# include "config.h"
41# endif
33 42
34# if HAVE_CLOCK_GETTIME 43# if HAVE_CLOCK_GETTIME
44# ifndef EV_USE_MONOTONIC
35# define EV_USE_MONOTONIC 1 45# define EV_USE_MONOTONIC 1
46# endif
47# ifndef EV_USE_REALTIME
36# define EV_USE_REALTIME 1 48# define EV_USE_REALTIME 1
49# endif
50# else
51# ifndef EV_USE_MONOTONIC
52# define EV_USE_MONOTONIC 0
53# endif
54# ifndef EV_USE_REALTIME
55# define EV_USE_REALTIME 0
56# endif
37# endif 57# endif
38 58
59# ifndef EV_USE_SELECT
39# if HAVE_SELECT && HAVE_SYS_SELECT_H 60# if HAVE_SELECT && HAVE_SYS_SELECT_H
40# define EV_USE_SELECT 1 61# define EV_USE_SELECT 1
62# else
63# define EV_USE_SELECT 0
64# endif
41# endif 65# endif
42 66
67# ifndef EV_USE_POLL
43# if HAVE_POLL && HAVE_POLL_H 68# if HAVE_POLL && HAVE_POLL_H
44# define EV_USE_POLL 1 69# define EV_USE_POLL 1
70# else
71# define EV_USE_POLL 0
72# endif
45# endif 73# endif
46 74
75# ifndef EV_USE_EPOLL
47# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 76# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48# define EV_USE_EPOLL 1 77# define EV_USE_EPOLL 1
78# else
79# define EV_USE_EPOLL 0
80# endif
49# endif 81# endif
50 82
83# ifndef EV_USE_KQUEUE
51# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 84# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52# define EV_USE_KQUEUE 1 85# define EV_USE_KQUEUE 1
86# else
87# define EV_USE_KQUEUE 0
88# endif
89# endif
90
91# ifndef EV_USE_PORT
92# if HAVE_PORT_H && HAVE_PORT_CREATE
93# define EV_USE_PORT 1
94# else
95# define EV_USE_PORT 0
96# endif
97# endif
98
99# ifndef EV_USE_INOTIFY
100# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
101# define EV_USE_INOTIFY 1
102# else
103# define EV_USE_INOTIFY 0
104# endif
53# endif 105# endif
54 106
55#endif 107#endif
56 108
57#include <math.h> 109#include <math.h>
… …
66#include <sys/types.h> 118#include <sys/types.h>
67#include <time.h> 119#include <time.h>
68 120
69#include <signal.h> 121#include <signal.h>
70 122
71#ifndef WIN32
72# include <unistd.h>
73# include <sys/time.h>
74# include <sys/wait.h>
75#endif
76/**/
77
78#ifndef EV_USE_MONOTONIC
79# define EV_USE_MONOTONIC 1
80#endif
81
82#ifndef EV_USE_SELECT
83# define EV_USE_SELECT 1
84#endif
85
86#ifndef EV_USE_POLL
87# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
88#endif
89
90#ifndef EV_USE_EPOLL
91# define EV_USE_EPOLL 0
92#endif
93
94#ifndef EV_USE_KQUEUE
95# define EV_USE_KQUEUE 0
96#endif
97
98#ifndef EV_USE_WIN32
99# ifdef WIN32
100# define EV_USE_WIN32 0 /* it does not exist, use select */
101# undef EV_USE_SELECT
102# define EV_USE_SELECT 1
103# else
104# define EV_USE_WIN32 0
105# endif
106#endif
107
108#ifndef EV_USE_REALTIME
109# define EV_USE_REALTIME 1
110#endif
111
112/**/
113
114#ifndef CLOCK_MONOTONIC
115# undef EV_USE_MONOTONIC
116# define EV_USE_MONOTONIC 0
117#endif
118
119#ifndef CLOCK_REALTIME
120# undef EV_USE_REALTIME
121# define EV_USE_REALTIME 0
122#endif
123
124/**/
125
126#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
128#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
130
131#ifdef EV_H 123#ifdef EV_H
132# include EV_H 124# include EV_H
133#else 125#else
134# include "ev.h" 126# include "ev.h"
135#endif 127#endif
136 128
129#ifndef _WIN32
130# include <sys/time.h>
131# include <sys/wait.h>
132# include <unistd.h>
133#else
134# define WIN32_LEAN_AND_MEAN
135# include <windows.h>
136# ifndef EV_SELECT_IS_WINSOCKET
137# define EV_SELECT_IS_WINSOCKET 1
138# endif
139#endif
140
141/**/
142
143#ifndef EV_USE_MONOTONIC
144# define EV_USE_MONOTONIC 0
145#endif
146
147#ifndef EV_USE_REALTIME
148# define EV_USE_REALTIME 0
149#endif
150
151#ifndef EV_USE_SELECT
152# define EV_USE_SELECT 1
153#endif
154
155#ifndef EV_USE_POLL
156# ifdef _WIN32
157# define EV_USE_POLL 0
158# else
159# define EV_USE_POLL 1
160# endif
161#endif
162
163#ifndef EV_USE_EPOLL
164# define EV_USE_EPOLL 0
165#endif
166
167#ifndef EV_USE_KQUEUE
168# define EV_USE_KQUEUE 0
169#endif
170
171#ifndef EV_USE_PORT
172# define EV_USE_PORT 0
173#endif
174
175#ifndef EV_USE_INOTIFY
176# define EV_USE_INOTIFY 0
177#endif
178
179#ifndef EV_PID_HASHSIZE
180# if EV_MINIMAL
181# define EV_PID_HASHSIZE 1
182# else
183# define EV_PID_HASHSIZE 16
184# endif
185#endif
186
187#ifndef EV_INOTIFY_HASHSIZE
188# if EV_MINIMAL
189# define EV_INOTIFY_HASHSIZE 1
190# else
191# define EV_INOTIFY_HASHSIZE 16
192# endif
193#endif
194
195/**/
196
197#ifndef CLOCK_MONOTONIC
198# undef EV_USE_MONOTONIC
199# define EV_USE_MONOTONIC 0
200#endif
201
202#ifndef CLOCK_REALTIME
203# undef EV_USE_REALTIME
204# define EV_USE_REALTIME 0
205#endif
206
207#if EV_SELECT_IS_WINSOCKET
208# include <winsock.h>
209#endif
210
211#if !EV_STAT_ENABLE
212# define EV_USE_INOTIFY 0
213#endif
214
215#if EV_USE_INOTIFY
216# include <sys/inotify.h>
217#endif
218
219/**/
220
221#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
222#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
223/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
224
137#if __GNUC__ >= 3 225#if __GNUC__ >= 3
138# 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
139# 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
140#else 235#else
141# define expect(expr,value) (expr) 236# define expect(expr,value) (expr)
237# define inline_speed static
142# define inline static 238# define inline_size static
239# define noinline
143#endif 240#endif
144 241
145#define expect_false(expr) expect ((expr) != 0, 0) 242#define expect_false(expr) expect ((expr) != 0, 0)
146#define expect_true(expr) expect ((expr) != 0, 1) 243#define expect_true(expr) expect ((expr) != 0, 1)
147 244
148#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 245#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149#define ABSPRI(w) ((w)->priority - EV_MINPRI) 246#define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
150 247
248#define EMPTY /* required for microsofts broken pseudo-c compiler */
249#define EMPTY2(a,b) /* used to suppress some warnings */
250
151typedef struct ev_watcher *W; 251typedef ev_watcher *W;
152typedef struct ev_watcher_list *WL; 252typedef ev_watcher_list *WL;
153typedef struct ev_watcher_time *WT; 253typedef ev_watcher_time *WT;
154 254
155static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 255static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156 256
257#ifdef _WIN32
157#include "ev_win32.c" 258# include "ev_win32.c"
259#endif
158 260
159/*****************************************************************************/ 261/*****************************************************************************/
160 262
161static void (*syserr_cb)(const char *msg); 263static void (*syserr_cb)(const char *msg);
162 264
265void
163void ev_set_syserr_cb (void (*cb)(const char *msg)) 266ev_set_syserr_cb (void (*cb)(const char *msg))
164{ 267{
165 syserr_cb = cb; 268 syserr_cb = cb;
166} 269}
167 270
168static void 271static void noinline
169syserr (const char *msg) 272syserr (const char *msg)
170{ 273{
171 if (!msg) 274 if (!msg)
172 msg = "(libev) system error"; 275 msg = "(libev) system error";
173 276
… …
180 } 283 }
181} 284}
182 285
183static void *(*alloc)(void *ptr, long size); 286static void *(*alloc)(void *ptr, long size);
184 287
288void
185void ev_set_allocator (void *(*cb)(void *ptr, long size)) 289ev_set_allocator (void *(*cb)(void *ptr, long size))
186{ 290{
187 alloc = cb; 291 alloc = cb;
188} 292}
189 293
190static void * 294inline_speed void *
191ev_realloc (void *ptr, long size) 295ev_realloc (void *ptr, long size)
192{ 296{
193 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 297 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
194 298
195 if (!ptr && size) 299 if (!ptr && size)
… …
209typedef struct 313typedef struct
210{ 314{
211 WL head; 315 WL head;
212 unsigned char events; 316 unsigned char events;
213 unsigned char reify; 317 unsigned char reify;
318#if EV_SELECT_IS_WINSOCKET
319 SOCKET handle;
320#endif
214} ANFD; 321} ANFD;
215 322
216typedef struct 323typedef struct
217{ 324{
218 W w; 325 W w;
219 int events; 326 int events;
220} ANPENDING; 327} ANPENDING;
221 328
329#if EV_USE_INOTIFY
330typedef struct
331{
332 WL head;
333} ANFS;
334#endif
335
222#if EV_MULTIPLICITY 336#if EV_MULTIPLICITY
223 337
224 struct ev_loop 338 struct ev_loop
225 { 339 {
340 ev_tstamp ev_rt_now;
341 #define ev_rt_now ((loop)->ev_rt_now)
226 #define VAR(name,decl) decl; 342 #define VAR(name,decl) decl;
227 #include "ev_vars.h" 343 #include "ev_vars.h"
228 #undef VAR 344 #undef VAR
229 }; 345 };
230 #include "ev_wrap.h" 346 #include "ev_wrap.h"
231 347
232 struct ev_loop default_loop_struct; 348 static struct ev_loop default_loop_struct;
233 static struct ev_loop *default_loop; 349 struct ev_loop *ev_default_loop_ptr;
234 350
235#else 351#else
236 352
353 ev_tstamp ev_rt_now;
237 #define VAR(name,decl) static decl; 354 #define VAR(name,decl) static decl;
238 #include "ev_vars.h" 355 #include "ev_vars.h"
239 #undef VAR 356 #undef VAR
240 357
241 static int default_loop; 358 static int ev_default_loop_ptr;
242 359
243#endif 360#endif
244 361
245/*****************************************************************************/ 362/*****************************************************************************/
246 363
247inline ev_tstamp 364ev_tstamp
248ev_time (void) 365ev_time (void)
249{ 366{
250#if EV_USE_REALTIME 367#if EV_USE_REALTIME
251 struct timespec ts; 368 struct timespec ts;
252 clock_gettime (CLOCK_REALTIME, &ts); 369 clock_gettime (CLOCK_REALTIME, &ts);
… …
256 gettimeofday (&tv, 0); 373 gettimeofday (&tv, 0);
257 return tv.tv_sec + tv.tv_usec * 1e-6; 374 return tv.tv_sec + tv.tv_usec * 1e-6;
258#endif 375#endif
259} 376}
260 377
261inline ev_tstamp 378ev_tstamp inline_size
262get_clock (void) 379get_clock (void)
263{ 380{
264#if EV_USE_MONOTONIC 381#if EV_USE_MONOTONIC
265 if (expect_true (have_monotonic)) 382 if (expect_true (have_monotonic))
266 { 383 {
… …
279{ 396{
280 return ev_rt_now; 397 return ev_rt_now;
281} 398}
282#endif 399#endif
283 400
284#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}
285 428
286#define array_needsize(type,base,cur,cnt,init) \ 429#define array_needsize(type,base,cur,cnt,init) \
287 if (expect_false ((cnt) > cur)) \ 430 if (expect_false ((cnt) > (cur))) \
288 { \ 431 { \
289 int newcnt = cur; \ 432 int ocur_ = (cur); \
290 do \ 433 (base) = (type *)array_realloc \
291 { \ 434 (sizeof (type), (base), &(cur), (cnt)); \
292 newcnt = array_roundsize (type, newcnt << 1); \ 435 init ((base) + (ocur_), (cur) - ocur_); \
293 } \
294 while ((cnt) > newcnt); \
295 \
296 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
297 init (base + cur, newcnt - cur); \
298 cur = newcnt; \
299 } 436 }
300 437
438#if 0
301#define array_slim(type,stem) \ 439#define array_slim(type,stem) \
302 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 440 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
303 { \ 441 { \
304 stem ## max = array_roundsize (stem ## cnt >> 1); \ 442 stem ## max = array_roundsize (stem ## cnt >> 1); \
305 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ 443 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
306 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 444 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
307 } 445 }
308 446#endif
309/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
310/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
311#define array_free_microshit(stem) \
312 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
313 447
314#define array_free(stem, idx) \ 448#define array_free(stem, idx) \
315 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;
316 450
317/*****************************************************************************/ 451/*****************************************************************************/
318 452
319static 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
320anfds_init (ANFD *base, int count) 482anfds_init (ANFD *base, int count)
321{ 483{
322 while (count--) 484 while (count--)
323 { 485 {
324 base->head = 0; 486 base->head = 0;
… …
327 489
328 ++base; 490 ++base;
329 } 491 }
330} 492}
331 493
332void 494void inline_speed
333ev_feed_event (EV_P_ void *w, int revents)
334{
335 W w_ = (W)w;
336
337 if (w_->pending)
338 {
339 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
340 return;
341 }
342
343 w_->pending = ++pendingcnt [ABSPRI (w_)];
344 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
345 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
346 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
347}
348
349static void
350queue_events (EV_P_ W *events, int eventcnt, int type)
351{
352 int i;
353
354 for (i = 0; i < eventcnt; ++i)
355 ev_feed_event (EV_A_ events [i], type);
356}
357
358inline void
359fd_event (EV_P_ int fd, int revents) 495fd_event (EV_P_ int fd, int revents)
360{ 496{
361 ANFD *anfd = anfds + fd; 497 ANFD *anfd = anfds + fd;
362 struct ev_io *w; 498 ev_io *w;
363 499
364 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)
365 { 501 {
366 int ev = w->events & revents; 502 int ev = w->events & revents;
367 503
368 if (ev) 504 if (ev)
369 ev_feed_event (EV_A_ (W)w, ev); 505 ev_feed_event (EV_A_ (W)w, ev);
… …
374ev_feed_fd_event (EV_P_ int fd, int revents) 510ev_feed_fd_event (EV_P_ int fd, int revents)
375{ 511{
376 fd_event (EV_A_ fd, revents); 512 fd_event (EV_A_ fd, revents);
377} 513}
378 514
379/*****************************************************************************/ 515void inline_size
380
381static void
382fd_reify (EV_P) 516fd_reify (EV_P)
383{ 517{
384 int i; 518 int i;
385 519
386 for (i = 0; i < fdchangecnt; ++i) 520 for (i = 0; i < fdchangecnt; ++i)
387 { 521 {
388 int fd = fdchanges [i]; 522 int fd = fdchanges [i];
389 ANFD *anfd = anfds + fd; 523 ANFD *anfd = anfds + fd;
390 struct ev_io *w; 524 ev_io *w;
391 525
392 int events = 0; 526 int events = 0;
393 527
394 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)
395 events |= w->events; 529 events |= w->events;
396 530
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
397 anfd->reify = 0; 540 anfd->reify = 0;
398 541
399 method_modify (EV_A_ fd, anfd->events, events); 542 backend_modify (EV_A_ fd, anfd->events, events);
400 anfd->events = events; 543 anfd->events = events;
401 } 544 }
402 545
403 fdchangecnt = 0; 546 fdchangecnt = 0;
404} 547}
405 548
406static void 549void inline_size
407fd_change (EV_P_ int fd) 550fd_change (EV_P_ int fd)
408{ 551{
409 if (anfds [fd].reify) 552 if (expect_false (anfds [fd].reify))
410 return; 553 return;
411 554
412 anfds [fd].reify = 1; 555 anfds [fd].reify = 1;
413 556
414 ++fdchangecnt; 557 ++fdchangecnt;
415 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); 558 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
416 fdchanges [fdchangecnt - 1] = fd; 559 fdchanges [fdchangecnt - 1] = fd;
417} 560}
418 561
419static void 562void inline_speed
420fd_kill (EV_P_ int fd) 563fd_kill (EV_P_ int fd)
421{ 564{
422 struct ev_io *w; 565 ev_io *w;
423 566
424 while ((w = (struct ev_io *)anfds [fd].head)) 567 while ((w = (ev_io *)anfds [fd].head))
425 { 568 {
426 ev_io_stop (EV_A_ w); 569 ev_io_stop (EV_A_ w);
427 ev_feed_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);
428 } 571 }
429} 572}
430 573
431static int 574int inline_size
432fd_valid (int fd) 575fd_valid (int fd)
433{ 576{
434#ifdef WIN32 577#ifdef _WIN32
435 return !!win32_get_osfhandle (fd); 578 return _get_osfhandle (fd) != -1;
436#else 579#else
437 return fcntl (fd, F_GETFD) != -1; 580 return fcntl (fd, F_GETFD) != -1;
438#endif 581#endif
439} 582}
440 583
441/* called on EBADF to verify fds */ 584/* called on EBADF to verify fds */
442static void 585static void noinline
443fd_ebadf (EV_P) 586fd_ebadf (EV_P)
444{ 587{
445 int fd; 588 int fd;
446 589
447 for (fd = 0; fd < anfdmax; ++fd) 590 for (fd = 0; fd < anfdmax; ++fd)
… …
449 if (!fd_valid (fd) == -1 && errno == EBADF) 592 if (!fd_valid (fd) == -1 && errno == EBADF)
450 fd_kill (EV_A_ fd); 593 fd_kill (EV_A_ fd);
451} 594}
452 595
453/* 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 */
454static void 597static void noinline
455fd_enomem (EV_P) 598fd_enomem (EV_P)
456{ 599{
457 int fd; 600 int fd;
458 601
459 for (fd = anfdmax; fd--; ) 602 for (fd = anfdmax; fd--; )
… …
462 fd_kill (EV_A_ fd); 605 fd_kill (EV_A_ fd);
463 return; 606 return;
464 } 607 }
465} 608}
466 609
467/* 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 */
468static void 611static void noinline
469fd_rearm_all (EV_P) 612fd_rearm_all (EV_P)
470{ 613{
471 int fd; 614 int fd;
472 615
473 /* this should be highly optimised to not do anything but set a flag */
474 for (fd = 0; fd < anfdmax; ++fd) 616 for (fd = 0; fd < anfdmax; ++fd)
475 if (anfds [fd].events) 617 if (anfds [fd].events)
476 { 618 {
477 anfds [fd].events = 0; 619 anfds [fd].events = 0;
478 fd_change (EV_A_ fd); 620 fd_change (EV_A_ fd);
479 } 621 }
480} 622}
481 623
482/*****************************************************************************/ 624/*****************************************************************************/
483 625
484static void 626void inline_speed
485upheap (WT *heap, int k) 627upheap (WT *heap, int k)
486{ 628{
487 WT w = heap [k]; 629 WT w = heap [k];
488 630
489 while (k && heap [k >> 1]->at > w->at) 631 while (k && heap [k >> 1]->at > w->at)
… …
496 heap [k] = w; 638 heap [k] = w;
497 ((W)heap [k])->active = k + 1; 639 ((W)heap [k])->active = k + 1;
498 640
499} 641}
500 642
501static void 643void inline_speed
502downheap (WT *heap, int N, int k) 644downheap (WT *heap, int N, int k)
503{ 645{
504 WT w = heap [k]; 646 WT w = heap [k];
505 647
506 while (k < (N >> 1)) 648 while (k < (N >> 1))
… …
520 662
521 heap [k] = w; 663 heap [k] = w;
522 ((W)heap [k])->active = k + 1; 664 ((W)heap [k])->active = k + 1;
523} 665}
524 666
525inline void 667void inline_size
526adjustheap (WT *heap, int N, int k, ev_tstamp at) 668adjustheap (WT *heap, int N, int k)
527{ 669{
528 ev_tstamp old_at = heap [k]->at; 670 upheap (heap, k);
529 heap [k]->at = at;
530
531 if (old_at < at)
532 downheap (heap, N, k); 671 downheap (heap, N, k);
533 else
534 upheap (heap, k);
535} 672}
536 673
537/*****************************************************************************/ 674/*****************************************************************************/
538 675
539typedef struct 676typedef struct
… …
545static ANSIG *signals; 682static ANSIG *signals;
546static int signalmax; 683static int signalmax;
547 684
548static int sigpipe [2]; 685static int sigpipe [2];
549static sig_atomic_t volatile gotsig; 686static sig_atomic_t volatile gotsig;
550static struct ev_io sigev; 687static ev_io sigev;
551 688
552static void 689void inline_size
553signals_init (ANSIG *base, int count) 690signals_init (ANSIG *base, int count)
554{ 691{
555 while (count--) 692 while (count--)
556 { 693 {
557 base->head = 0; 694 base->head = 0;
… …
562} 699}
563 700
564static void 701static void
565sighandler (int signum) 702sighandler (int signum)
566{ 703{
567#if WIN32 704#if _WIN32
568 signal (signum, sighandler); 705 signal (signum, sighandler);
569#endif 706#endif
570 707
571 signals [signum - 1].gotsig = 1; 708 signals [signum - 1].gotsig = 1;
572 709
573 if (!gotsig) 710 if (!gotsig)
574 { 711 {
575 int old_errno = errno; 712 int old_errno = errno;
576 gotsig = 1; 713 gotsig = 1;
577#ifdef WIN32
578 send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
579#else
580 write (sigpipe [1], &signum, 1); 714 write (sigpipe [1], &signum, 1);
581#endif
582 errno = old_errno; 715 errno = old_errno;
583 } 716 }
584} 717}
585 718
586void 719void noinline
587ev_feed_signal_event (EV_P_ int signum) 720ev_feed_signal_event (EV_P_ int signum)
588{ 721{
589 WL w; 722 WL w;
590 723
591#if EV_MULTIPLICITY 724#if EV_MULTIPLICITY
592 assert (("feeding signal events is only supported in the default loop", loop == default_loop)); 725 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
593#endif 726#endif
594 727
595 --signum; 728 --signum;
596 729
597 if (signum < 0 || signum >= signalmax) 730 if (signum < 0 || signum >= signalmax)
… …
602 for (w = signals [signum].head; w; w = w->next) 735 for (w = signals [signum].head; w; w = w->next)
603 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 736 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
604} 737}
605 738
606static void 739static void
607sigcb (EV_P_ struct ev_io *iow, int revents) 740sigcb (EV_P_ ev_io *iow, int revents)
608{ 741{
609 int signum; 742 int signum;
610 743
611#ifdef WIN32
612 recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
613#else
614 read (sigpipe [0], &revents, 1); 744 read (sigpipe [0], &revents, 1);
615#endif
616 gotsig = 0; 745 gotsig = 0;
617 746
618 for (signum = signalmax; signum--; ) 747 for (signum = signalmax; signum--; )
619 if (signals [signum].gotsig) 748 if (signals [signum].gotsig)
620 ev_feed_signal_event (EV_A_ signum + 1); 749 ev_feed_signal_event (EV_A_ signum + 1);
621} 750}
622 751
623static 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
624siginit (EV_P) 765siginit (EV_P)
625{ 766{
626#ifndef WIN32 767 fd_intern (sigpipe [0]);
627 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 768 fd_intern (sigpipe [1]);
628 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
629
630 /* rather than sort out wether we really need nb, set it */
631 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
632 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
633#endif
634 769
635 ev_io_set (&sigev, sigpipe [0], EV_READ); 770 ev_io_set (&sigev, sigpipe [0], EV_READ);
636 ev_io_start (EV_A_ &sigev); 771 ev_io_start (EV_A_ &sigev);
637 ev_unref (EV_A); /* child watcher should not keep loop alive */ 772 ev_unref (EV_A); /* child watcher should not keep loop alive */
638} 773}
639 774
640/*****************************************************************************/ 775/*****************************************************************************/
641 776
642static struct ev_child *childs [PID_HASHSIZE]; 777static ev_child *childs [EV_PID_HASHSIZE];
643 778
644#ifndef WIN32 779#ifndef _WIN32
645 780
646static 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}
647 797
648#ifndef WCONTINUED 798#ifndef WCONTINUED
649# define WCONTINUED 0 799# define WCONTINUED 0
650#endif 800#endif
651 801
652static void 802static void
653child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
654{
655 struct ev_child *w;
656
657 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
658 if (w->pid == pid || !w->pid)
659 {
660 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
661 w->rpid = pid;
662 w->rstatus = status;
663 ev_feed_event (EV_A_ (W)w, EV_CHILD);
664 }
665}
666
667static void
668childcb (EV_P_ struct ev_signal *sw, int revents) 803childcb (EV_P_ ev_signal *sw, int revents)
669{ 804{
670 int pid, status; 805 int pid, status;
671 806
807 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
672 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 808 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
673 { 809 if (!WCONTINUED
810 || errno != EINVAL
811 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
812 return;
813
674 /* 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 */
675 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 816 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
676 817
677 child_reap (EV_A_ sw, pid, pid, status); 818 child_reap (EV_A_ sw, pid, pid, status);
819 if (EV_PID_HASHSIZE > 1)
678 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 */
679 }
680} 821}
681 822
682#endif 823#endif
683 824
684/*****************************************************************************/ 825/*****************************************************************************/
685 826
827#if EV_USE_PORT
828# include "ev_port.c"
829#endif
686#if EV_USE_KQUEUE 830#if EV_USE_KQUEUE
687# include "ev_kqueue.c" 831# include "ev_kqueue.c"
688#endif 832#endif
689#if EV_USE_EPOLL 833#if EV_USE_EPOLL
690# include "ev_epoll.c" 834# include "ev_epoll.c"
… …
707{ 851{
708 return EV_VERSION_MINOR; 852 return EV_VERSION_MINOR;
709} 853}
710 854
711/* 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 */
712static int 856int inline_size
713enable_secure (void) 857enable_secure (void)
714{ 858{
715#ifdef WIN32 859#ifdef _WIN32
716 return 0; 860 return 0;
717#else 861#else
718 return getuid () != geteuid () 862 return getuid () != geteuid ()
719 || getgid () != getegid (); 863 || getgid () != getegid ();
720#endif 864#endif
721} 865}
722 866
723int 867unsigned int
724ev_method (EV_P) 868ev_supported_backends (void)
725{ 869{
726 return method; 870 unsigned int flags = 0;
727}
728 871
729static void 872 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
730loop_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)
731{ 883{
732 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)
733 { 923 {
734#if EV_USE_MONOTONIC 924#if EV_USE_MONOTONIC
735 { 925 {
736 struct timespec ts; 926 struct timespec ts;
737 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 927 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
… …
742 ev_rt_now = ev_time (); 932 ev_rt_now = ev_time ();
743 mn_now = get_clock (); 933 mn_now = get_clock ();
744 now_floor = mn_now; 934 now_floor = mn_now;
745 rtmn_diff = ev_rt_now - mn_now; 935 rtmn_diff = ev_rt_now - mn_now;
746 936
747 if (methods == EVMETHOD_AUTO) 937 /* pid check not overridable via env */
748 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"))
749 methods = atoi (getenv ("LIBEV_METHODS")); 946 flags = atoi (getenv ("LIBEV_FLAGS"));
750 else
751 methods = EVMETHOD_ANY;
752 947
753 method = 0; 948 if (!(flags & 0x0000ffffUL))
949 flags |= ev_recommended_backends ();
950
951 backend = 0;
952 backend_fd = -1;
754#if EV_USE_WIN32 953#if EV_USE_INOTIFY
755 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);
756#endif 959#endif
757#if EV_USE_KQUEUE 960#if EV_USE_KQUEUE
758 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 961 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
759#endif 962#endif
760#if EV_USE_EPOLL 963#if EV_USE_EPOLL
761 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 964 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
762#endif 965#endif
763#if EV_USE_POLL 966#if EV_USE_POLL
764 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 967 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
765#endif 968#endif
766#if EV_USE_SELECT 969#if EV_USE_SELECT
767 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 970 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
768#endif 971#endif
769 972
770 ev_init (&sigev, sigcb); 973 ev_init (&sigev, sigcb);
771 ev_set_priority (&sigev, EV_MAXPRI); 974 ev_set_priority (&sigev, EV_MAXPRI);
772 } 975 }
773} 976}
774 977
775void 978static void noinline
776loop_destroy (EV_P) 979loop_destroy (EV_P)
777{ 980{
778 int i; 981 int i;
779 982
780#if EV_USE_WIN32 983#if EV_USE_INOTIFY
781 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);
782#endif 993#endif
783#if EV_USE_KQUEUE 994#if EV_USE_KQUEUE
784 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 995 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
785#endif 996#endif
786#if EV_USE_EPOLL 997#if EV_USE_EPOLL
787 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 998 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
788#endif 999#endif
789#if EV_USE_POLL 1000#if EV_USE_POLL
790 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 1001 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
791#endif 1002#endif
792#if EV_USE_SELECT 1003#if EV_USE_SELECT
793 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 1004 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
794#endif 1005#endif
795 1006
796 for (i = NUMPRI; i--; ) 1007 for (i = NUMPRI; i--; )
1008 {
797 array_free (pending, [i]); 1009 array_free (pending, [i]);
1010#if EV_IDLE_ENABLE
1011 array_free (idle, [i]);
1012#endif
1013 }
798 1014
799 /* have to use the microsoft-never-gets-it-right macro */ 1015 /* have to use the microsoft-never-gets-it-right macro */
800 array_free_microshit (fdchange); 1016 array_free (fdchange, EMPTY);
801 array_free_microshit (timer); 1017 array_free (timer, EMPTY);
802 array_free_microshit (periodic); 1018#if EV_PERIODIC_ENABLE
803 array_free_microshit (idle); 1019 array_free (periodic, EMPTY);
804 array_free_microshit (prepare); 1020#endif
805 array_free_microshit (check); 1021 array_free (prepare, EMPTY);
1022 array_free (check, EMPTY);
806 1023
807 method = 0; 1024 backend = 0;
808} 1025}
809 1026
810static void 1027void inline_size infy_fork (EV_P);
1028
1029void inline_size
811loop_fork (EV_P) 1030loop_fork (EV_P)
812{ 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
813#if EV_USE_EPOLL 1038#if EV_USE_EPOLL
814 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1039 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
815#endif 1040#endif
816#if EV_USE_KQUEUE 1041#if EV_USE_INOTIFY
817 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1042 infy_fork (EV_A);
818#endif 1043#endif
819 1044
820 if (ev_is_active (&sigev)) 1045 if (ev_is_active (&sigev))
821 { 1046 {
822 /* default loop */ 1047 /* default loop */
… …
835 postfork = 0; 1060 postfork = 0;
836} 1061}
837 1062
838#if EV_MULTIPLICITY 1063#if EV_MULTIPLICITY
839struct ev_loop * 1064struct ev_loop *
840ev_loop_new (int methods) 1065ev_loop_new (unsigned int flags)
841{ 1066{
842 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));
843 1068
844 memset (loop, 0, sizeof (struct ev_loop)); 1069 memset (loop, 0, sizeof (struct ev_loop));
845 1070
846 loop_init (EV_A_ methods); 1071 loop_init (EV_A_ flags);
847 1072
848 if (ev_method (EV_A)) 1073 if (ev_backend (EV_A))
849 return loop; 1074 return loop;
850 1075
851 return 0; 1076 return 0;
852} 1077}
853 1078
… …
866 1091
867#endif 1092#endif
868 1093
869#if EV_MULTIPLICITY 1094#if EV_MULTIPLICITY
870struct ev_loop * 1095struct ev_loop *
1096ev_default_loop_init (unsigned int flags)
871#else 1097#else
872int 1098int
1099ev_default_loop (unsigned int flags)
873#endif 1100#endif
874ev_default_loop (int methods)
875{ 1101{
876 if (sigpipe [0] == sigpipe [1]) 1102 if (sigpipe [0] == sigpipe [1])
877 if (pipe (sigpipe)) 1103 if (pipe (sigpipe))
878 return 0; 1104 return 0;
879 1105
880 if (!default_loop) 1106 if (!ev_default_loop_ptr)
881 { 1107 {
882#if EV_MULTIPLICITY 1108#if EV_MULTIPLICITY
883 struct ev_loop *loop = default_loop = &default_loop_struct; 1109 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
884#else 1110#else
885 default_loop = 1; 1111 ev_default_loop_ptr = 1;
886#endif 1112#endif
887 1113
888 loop_init (EV_A_ methods); 1114 loop_init (EV_A_ flags);
889 1115
890 if (ev_method (EV_A)) 1116 if (ev_backend (EV_A))
891 { 1117 {
892 siginit (EV_A); 1118 siginit (EV_A);
893 1119
894#ifndef WIN32 1120#ifndef _WIN32
895 ev_signal_init (&childev, childcb, SIGCHLD); 1121 ev_signal_init (&childev, childcb, SIGCHLD);
896 ev_set_priority (&childev, EV_MAXPRI); 1122 ev_set_priority (&childev, EV_MAXPRI);
897 ev_signal_start (EV_A_ &childev); 1123 ev_signal_start (EV_A_ &childev);
898 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1124 ev_unref (EV_A); /* child watcher should not keep loop alive */
899#endif 1125#endif
900 } 1126 }
901 else 1127 else
902 default_loop = 0; 1128 ev_default_loop_ptr = 0;
903 } 1129 }
904 1130
905 return default_loop; 1131 return ev_default_loop_ptr;
906} 1132}
907 1133
908void 1134void
909ev_default_destroy (void) 1135ev_default_destroy (void)
910{ 1136{
911#if EV_MULTIPLICITY 1137#if EV_MULTIPLICITY
912 struct ev_loop *loop = default_loop; 1138 struct ev_loop *loop = ev_default_loop_ptr;
913#endif 1139#endif
914 1140
915#ifndef WIN32 1141#ifndef _WIN32
916 ev_ref (EV_A); /* child watcher */ 1142 ev_ref (EV_A); /* child watcher */
917 ev_signal_stop (EV_A_ &childev); 1143 ev_signal_stop (EV_A_ &childev);
918#endif 1144#endif
919 1145
920 ev_ref (EV_A); /* signal watcher */ 1146 ev_ref (EV_A); /* signal watcher */
… …
928 1154
929void 1155void
930ev_default_fork (void) 1156ev_default_fork (void)
931{ 1157{
932#if EV_MULTIPLICITY 1158#if EV_MULTIPLICITY
933 struct ev_loop *loop = default_loop; 1159 struct ev_loop *loop = ev_default_loop_ptr;
934#endif 1160#endif
935 1161
936 if (method) 1162 if (backend)
937 postfork = 1; 1163 postfork = 1;
938} 1164}
939 1165
940/*****************************************************************************/ 1166/*****************************************************************************/
941 1167
942static int 1168void inline_speed
943any_pending (EV_P)
944{
945 int pri;
946
947 for (pri = NUMPRI; pri--; )
948 if (pendingcnt [pri])
949 return 1;
950
951 return 0;
952}
953
954static void
955call_pending (EV_P) 1169call_pending (EV_P)
956{ 1170{
957 int pri; 1171 int pri;
958 1172
959 for (pri = NUMPRI; pri--; ) 1173 for (pri = NUMPRI; pri--; )
960 while (pendingcnt [pri]) 1174 while (pendingcnt [pri])
961 { 1175 {
962 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1176 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
963 1177
964 if (p->w) 1178 if (expect_true (p->w))
965 { 1179 {
1180 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1181
966 p->w->pending = 0; 1182 p->w->pending = 0;
967 EV_CB_INVOKE (p->w, p->events); 1183 EV_CB_INVOKE (p->w, p->events);
968 } 1184 }
969 } 1185 }
970} 1186}
971 1187
972static void 1188void inline_size
973timers_reify (EV_P) 1189timers_reify (EV_P)
974{ 1190{
975 while (timercnt && ((WT)timers [0])->at <= mn_now) 1191 while (timercnt && ((WT)timers [0])->at <= mn_now)
976 { 1192 {
977 struct ev_timer *w = timers [0]; 1193 ev_timer *w = timers [0];
978 1194
979 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1195 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
980 1196
981 /* first reschedule or stop timer */ 1197 /* first reschedule or stop timer */
982 if (w->repeat) 1198 if (w->repeat)
983 { 1199 {
984 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
985 ((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
986 downheap ((WT *)timers, timercnt, 0); 1206 downheap ((WT *)timers, timercnt, 0);
987 } 1207 }
988 else 1208 else
989 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1209 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
990 1210
991 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); 1211 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
992 } 1212 }
993} 1213}
994 1214
995static void 1215#if EV_PERIODIC_ENABLE
1216void inline_size
996periodics_reify (EV_P) 1217periodics_reify (EV_P)
997{ 1218{
998 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) 1219 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
999 { 1220 {
1000 struct ev_periodic *w = periodics [0]; 1221 ev_periodic *w = periodics [0];
1001 1222
1002 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1223 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1003 1224
1004 /* first reschedule or stop timer */ 1225 /* first reschedule or stop timer */
1005 if (w->reschedule_cb) 1226 if (w->reschedule_cb)
1006 { 1227 {
1007 ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); 1228 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1008
1009 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); 1229 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1010 downheap ((WT *)periodics, periodiccnt, 0); 1230 downheap ((WT *)periodics, periodiccnt, 0);
1011 } 1231 }
1012 else if (w->interval) 1232 else if (w->interval)
1013 { 1233 {
… …
1020 1240
1021 ev_feed_event (EV_A_ (W)w, EV_PERIODIC); 1241 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1022 } 1242 }
1023} 1243}
1024 1244
1025static void 1245static void noinline
1026periodics_reschedule (EV_P) 1246periodics_reschedule (EV_P)
1027{ 1247{
1028 int i; 1248 int i;
1029 1249
1030 /* adjust periodics after time jump */ 1250 /* adjust periodics after time jump */
1031 for (i = 0; i < periodiccnt; ++i) 1251 for (i = 0; i < periodiccnt; ++i)
1032 { 1252 {
1033 struct ev_periodic *w = periodics [i]; 1253 ev_periodic *w = periodics [i];
1034 1254
1035 if (w->reschedule_cb) 1255 if (w->reschedule_cb)
1036 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1256 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1037 else if (w->interval) 1257 else if (w->interval)
1038 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1258 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
… …
1040 1260
1041 /* now rebuild the heap */ 1261 /* now rebuild the heap */
1042 for (i = periodiccnt >> 1; i--; ) 1262 for (i = periodiccnt >> 1; i--; )
1043 downheap ((WT *)periodics, periodiccnt, i); 1263 downheap ((WT *)periodics, periodiccnt, i);
1044} 1264}
1265#endif
1045 1266
1046inline int 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--; )
1276 {
1277 if (pendingcnt [pri])
1278 break;
1279
1280 if (idlecnt [pri])
1281 {
1282 queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE);
1283 break;
1284 }
1285 }
1286 }
1287}
1288#endif
1289
1290int inline_size
1047time_update_monotonic (EV_P) 1291time_update_monotonic (EV_P)
1048{ 1292{
1049 mn_now = get_clock (); 1293 mn_now = get_clock ();
1050 1294
1051 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1295 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
… …
1059 ev_rt_now = ev_time (); 1303 ev_rt_now = ev_time ();
1060 return 1; 1304 return 1;
1061 } 1305 }
1062} 1306}
1063 1307
1064static void 1308void inline_size
1065time_update (EV_P) 1309time_update (EV_P)
1066{ 1310{
1067 int i; 1311 int i;
1068 1312
1069#if EV_USE_MONOTONIC 1313#if EV_USE_MONOTONIC
… …
1071 { 1315 {
1072 if (time_update_monotonic (EV_A)) 1316 if (time_update_monotonic (EV_A))
1073 { 1317 {
1074 ev_tstamp odiff = rtmn_diff; 1318 ev_tstamp odiff = rtmn_diff;
1075 1319
1076 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; )
1077 { 1329 {
1078 rtmn_diff = ev_rt_now - mn_now; 1330 rtmn_diff = ev_rt_now - mn_now;
1079 1331
1080 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1332 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1081 return; /* all is well */ 1333 return; /* all is well */
… …
1083 ev_rt_now = ev_time (); 1335 ev_rt_now = ev_time ();
1084 mn_now = get_clock (); 1336 mn_now = get_clock ();
1085 now_floor = mn_now; 1337 now_floor = mn_now;
1086 } 1338 }
1087 1339
1340# if EV_PERIODIC_ENABLE
1088 periodics_reschedule (EV_A); 1341 periodics_reschedule (EV_A);
1342# endif
1089 /* no timer adjustment, as the monotonic clock doesn't jump */ 1343 /* no timer adjustment, as the monotonic clock doesn't jump */
1090 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1344 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1091 } 1345 }
1092 } 1346 }
1093 else 1347 else
… …
1095 { 1349 {
1096 ev_rt_now = ev_time (); 1350 ev_rt_now = ev_time ();
1097 1351
1098 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1352 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1099 { 1353 {
1354#if EV_PERIODIC_ENABLE
1100 periodics_reschedule (EV_A); 1355 periodics_reschedule (EV_A);
1356#endif
1101 1357
1102 /* 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 */
1103 for (i = 0; i < timercnt; ++i) 1359 for (i = 0; i < timercnt; ++i)
1104 ((WT)timers [i])->at += ev_rt_now - mn_now; 1360 ((WT)timers [i])->at += ev_rt_now - mn_now;
1105 } 1361 }
1106 1362
1107 mn_now = ev_rt_now; 1363 mn_now = ev_rt_now;
… …
1123static int loop_done; 1379static int loop_done;
1124 1380
1125void 1381void
1126ev_loop (EV_P_ int flags) 1382ev_loop (EV_P_ int flags)
1127{ 1383{
1128 double block;
1129 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 */
1130 1389
1131 do 1390 do
1132 { 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
1133 /* queue check watchers (and execute them) */ 1411 /* queue check watchers (and execute them) */
1134 if (expect_false (preparecnt)) 1412 if (expect_false (preparecnt))
1135 { 1413 {
1136 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1414 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1137 call_pending (EV_A); 1415 call_pending (EV_A);
1138 } 1416 }
1139 1417
1418 if (expect_false (!activecnt))
1419 break;
1420
1140 /* we might have forked, so reify kernel state if necessary */ 1421 /* we might have forked, so reify kernel state if necessary */
1141 if (expect_false (postfork)) 1422 if (expect_false (postfork))
1142 loop_fork (EV_A); 1423 loop_fork (EV_A);
1143 1424
1144 /* update fd-related kernel structures */ 1425 /* update fd-related kernel structures */
1145 fd_reify (EV_A); 1426 fd_reify (EV_A);
1146 1427
1147 /* calculate blocking time */ 1428 /* calculate blocking time */
1429 {
1430 ev_tstamp block;
1148 1431
1149 /* we only need this for !monotonic clock or timers, but as we basically 1432 if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt))
1150 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 */
1151#if EV_USE_MONOTONIC 1437#if EV_USE_MONOTONIC
1152 if (expect_true (have_monotonic)) 1438 if (expect_true (have_monotonic))
1153 time_update_monotonic (EV_A); 1439 time_update_monotonic (EV_A);
1154 else 1440 else
1155#endif 1441#endif
1156 { 1442 {
1157 ev_rt_now = ev_time (); 1443 ev_rt_now = ev_time ();
1158 mn_now = ev_rt_now; 1444 mn_now = ev_rt_now;
1159 } 1445 }
1160 1446
1161 if (flags & EVLOOP_NONBLOCK || idlecnt)
1162 block = 0.;
1163 else
1164 {
1165 block = MAX_BLOCKTIME; 1447 block = MAX_BLOCKTIME;
1166 1448
1167 if (timercnt) 1449 if (timercnt)
1168 { 1450 {
1169 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1451 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1170 if (block > to) block = to; 1452 if (block > to) block = to;
1171 } 1453 }
1172 1454
1455#if EV_PERIODIC_ENABLE
1173 if (periodiccnt) 1456 if (periodiccnt)
1174 { 1457 {
1175 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; 1458 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1176 if (block > to) block = to; 1459 if (block > to) block = to;
1177 } 1460 }
1461#endif
1178 1462
1179 if (block < 0.) block = 0.; 1463 if (expect_false (block < 0.)) block = 0.;
1180 } 1464 }
1181 1465
1466 ++loop_count;
1182 method_poll (EV_A_ block); 1467 backend_poll (EV_A_ block);
1468 }
1183 1469
1184 /* update ev_rt_now, do magic */ 1470 /* update ev_rt_now, do magic */
1185 time_update (EV_A); 1471 time_update (EV_A);
1186 1472
1187 /* queue pending timers and reschedule them */ 1473 /* queue pending timers and reschedule them */
1188 timers_reify (EV_A); /* relative timers called last */ 1474 timers_reify (EV_A); /* relative timers called last */
1475#if EV_PERIODIC_ENABLE
1189 periodics_reify (EV_A); /* absolute timers called first */ 1476 periodics_reify (EV_A); /* absolute timers called first */
1477#endif
1190 1478
1479#if EV_IDLE_ENABLE
1191 /* queue idle watchers unless io or timers are pending */ 1480 /* queue idle watchers unless other events are pending */
1192 if (idlecnt && !any_pending (EV_A)) 1481 idle_reify (EV_A);
1193 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1482#endif
1194 1483
1195 /* queue check watchers, to be executed first */ 1484 /* queue check watchers, to be executed first */
1196 if (checkcnt) 1485 if (expect_false (checkcnt))
1197 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1486 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1198 1487
1199 call_pending (EV_A); 1488 call_pending (EV_A);
1489
1200 } 1490 }
1201 while (activecnt && !loop_done); 1491 while (expect_true (activecnt && !loop_done));
1202 1492
1203 if (loop_done != 2) 1493 if (loop_done == EVUNLOOP_ONE)
1204 loop_done = 0; 1494 loop_done = EVUNLOOP_CANCEL;
1205} 1495}
1206 1496
1207void 1497void
1208ev_unloop (EV_P_ int how) 1498ev_unloop (EV_P_ int how)
1209{ 1499{
1210 loop_done = how; 1500 loop_done = how;
1211} 1501}
1212 1502
1213/*****************************************************************************/ 1503/*****************************************************************************/
1214 1504
1215inline void 1505void inline_size
1216wlist_add (WL *head, WL elem) 1506wlist_add (WL *head, WL elem)
1217{ 1507{
1218 elem->next = *head; 1508 elem->next = *head;
1219 *head = elem; 1509 *head = elem;
1220} 1510}
1221 1511
1222inline void 1512void inline_size
1223wlist_del (WL *head, WL elem) 1513wlist_del (WL *head, WL elem)
1224{ 1514{
1225 while (*head) 1515 while (*head)
1226 { 1516 {
1227 if (*head == elem) 1517 if (*head == elem)
… …
1232 1522
1233 head = &(*head)->next; 1523 head = &(*head)->next;
1234 } 1524 }
1235} 1525}
1236 1526
1237inline void 1527void inline_speed
1238ev_clear_pending (EV_P_ W w) 1528ev_clear_pending (EV_P_ W w)
1239{ 1529{
1240 if (w->pending) 1530 if (w->pending)
1241 { 1531 {
1242 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1532 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1243 w->pending = 0; 1533 w->pending = 0;
1244 } 1534 }
1245} 1535}
1246 1536
1247inline void 1537void inline_size
1538pri_adjust (EV_P_ W w)
1539{
1540 int pri = w->priority;
1541 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
1542 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
1543 w->priority = pri;
1544}
1545
1546void inline_speed
1248ev_start (EV_P_ W w, int active) 1547ev_start (EV_P_ W w, int active)
1249{ 1548{
1250 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1549 pri_adjust (EV_A_ w);
1251 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1252
1253 w->active = active; 1550 w->active = active;
1254 ev_ref (EV_A); 1551 ev_ref (EV_A);
1255} 1552}
1256 1553
1257inline void 1554void inline_size
1258ev_stop (EV_P_ W w) 1555ev_stop (EV_P_ W w)
1259{ 1556{
1260 ev_unref (EV_A); 1557 ev_unref (EV_A);
1261 w->active = 0; 1558 w->active = 0;
1262} 1559}
1263 1560
1264/*****************************************************************************/ 1561/*****************************************************************************/
1265 1562
1266void 1563void
1267ev_io_start (EV_P_ struct ev_io *w) 1564ev_io_start (EV_P_ ev_io *w)
1268{ 1565{
1269 int fd = w->fd; 1566 int fd = w->fd;
1270 1567
1271 if (ev_is_active (w)) 1568 if (expect_false (ev_is_active (w)))
1272 return; 1569 return;
1273 1570
1274 assert (("ev_io_start called with negative fd", fd >= 0)); 1571 assert (("ev_io_start called with negative fd", fd >= 0));
1275 1572
1276 ev_start (EV_A_ (W)w, 1); 1573 ev_start (EV_A_ (W)w, 1);
… …
1279 1576
1280 fd_change (EV_A_ fd); 1577 fd_change (EV_A_ fd);
1281} 1578}
1282 1579
1283void 1580void
1284ev_io_stop (EV_P_ struct ev_io *w) 1581ev_io_stop (EV_P_ ev_io *w)
1285{ 1582{
1286 ev_clear_pending (EV_A_ (W)w); 1583 ev_clear_pending (EV_A_ (W)w);
1287 if (!ev_is_active (w)) 1584 if (expect_false (!ev_is_active (w)))
1288 return; 1585 return;
1586
1587 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1289 1588
1290 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1589 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1291 ev_stop (EV_A_ (W)w); 1590 ev_stop (EV_A_ (W)w);
1292 1591
1293 fd_change (EV_A_ w->fd); 1592 fd_change (EV_A_ w->fd);
1294} 1593}
1295 1594
1296void 1595void
1297ev_timer_start (EV_P_ struct ev_timer *w) 1596ev_timer_start (EV_P_ ev_timer *w)
1298{ 1597{
1299 if (ev_is_active (w)) 1598 if (expect_false (ev_is_active (w)))
1300 return; 1599 return;
1301 1600
1302 ((WT)w)->at += mn_now; 1601 ((WT)w)->at += mn_now;
1303 1602
1304 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1603 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1305 1604
1306 ev_start (EV_A_ (W)w, ++timercnt); 1605 ev_start (EV_A_ (W)w, ++timercnt);
1307 array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); 1606 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1308 timers [timercnt - 1] = w; 1607 timers [timercnt - 1] = w;
1309 upheap ((WT *)timers, timercnt - 1); 1608 upheap ((WT *)timers, timercnt - 1);
1310 1609
1610 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1611}
1612
1613void
1614ev_timer_stop (EV_P_ ev_timer *w)
1615{
1616 ev_clear_pending (EV_A_ (W)w);
1617 if (expect_false (!ev_is_active (w)))
1618 return;
1619
1311 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1620 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1312}
1313 1621
1314void 1622 {
1315ev_timer_stop (EV_P_ struct ev_timer *w) 1623 int active = ((W)w)->active;
1316{
1317 ev_clear_pending (EV_A_ (W)w);
1318 if (!ev_is_active (w))
1319 return;
1320 1624
1321 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1625 if (expect_true (--active < --timercnt))
1322
1323 if (((W)w)->active < timercnt--)
1324 { 1626 {
1325 timers [((W)w)->active - 1] = timers [timercnt]; 1627 timers [active] = timers [timercnt];
1326 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1628 adjustheap ((WT *)timers, timercnt, active);
1327 } 1629 }
1630 }
1328 1631
1329 ((WT)w)->at = w->repeat; 1632 ((WT)w)->at -= mn_now;
1330 1633
1331 ev_stop (EV_A_ (W)w); 1634 ev_stop (EV_A_ (W)w);
1332} 1635}
1333 1636
1334void 1637void
1335ev_timer_again (EV_P_ struct ev_timer *w) 1638ev_timer_again (EV_P_ ev_timer *w)
1336{ 1639{
1337 if (ev_is_active (w)) 1640 if (ev_is_active (w))
1338 { 1641 {
1339 if (w->repeat) 1642 if (w->repeat)
1643 {
1644 ((WT)w)->at = mn_now + w->repeat;
1340 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat); 1645 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1646 }
1341 else 1647 else
1342 ev_timer_stop (EV_A_ w); 1648 ev_timer_stop (EV_A_ w);
1343 } 1649 }
1344 else if (w->repeat) 1650 else if (w->repeat)
1651 {
1652 w->at = w->repeat;
1345 ev_timer_start (EV_A_ w); 1653 ev_timer_start (EV_A_ w);
1654 }
1346} 1655}
1347 1656
1657#if EV_PERIODIC_ENABLE
1348void 1658void
1349ev_periodic_start (EV_P_ struct ev_periodic *w) 1659ev_periodic_start (EV_P_ ev_periodic *w)
1350{ 1660{
1351 if (ev_is_active (w)) 1661 if (expect_false (ev_is_active (w)))
1352 return; 1662 return;
1353 1663
1354 if (w->reschedule_cb) 1664 if (w->reschedule_cb)
1355 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); 1665 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1356 else if (w->interval) 1666 else if (w->interval)
… …
1359 /* this formula differs from the one in periodic_reify because we do not always round up */ 1669 /* this formula differs from the one in periodic_reify because we do not always round up */
1360 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; 1670 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1361 } 1671 }
1362 1672
1363 ev_start (EV_A_ (W)w, ++periodiccnt); 1673 ev_start (EV_A_ (W)w, ++periodiccnt);
1364 array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); 1674 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1365 periodics [periodiccnt - 1] = w; 1675 periodics [periodiccnt - 1] = w;
1366 upheap ((WT *)periodics, periodiccnt - 1); 1676 upheap ((WT *)periodics, periodiccnt - 1);
1367 1677
1678 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1679}
1680
1681void
1682ev_periodic_stop (EV_P_ ev_periodic *w)
1683{
1684 ev_clear_pending (EV_A_ (W)w);
1685 if (expect_false (!ev_is_active (w)))
1686 return;
1687
1368 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1688 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1369}
1370 1689
1371void 1690 {
1372ev_periodic_stop (EV_P_ struct ev_periodic *w) 1691 int active = ((W)w)->active;
1373{
1374 ev_clear_pending (EV_A_ (W)w);
1375 if (!ev_is_active (w))
1376 return;
1377 1692
1378 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1693 if (expect_true (--active < --periodiccnt))
1379
1380 if (((W)w)->active < periodiccnt--)
1381 { 1694 {
1382 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1695 periodics [active] = periodics [periodiccnt];
1383 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1696 adjustheap ((WT *)periodics, periodiccnt, active);
1384 } 1697 }
1698 }
1385 1699
1386 ev_stop (EV_A_ (W)w); 1700 ev_stop (EV_A_ (W)w);
1387} 1701}
1388 1702
1389void 1703void
1390ev_periodic_again (EV_P_ struct ev_periodic *w) 1704ev_periodic_again (EV_P_ ev_periodic *w)
1391{ 1705{
1392 /* TODO: use adjustheap and recalculation */ 1706 /* TODO: use adjustheap and recalculation */
1393 ev_periodic_stop (EV_A_ w); 1707 ev_periodic_stop (EV_A_ w);
1394 ev_periodic_start (EV_A_ w); 1708 ev_periodic_start (EV_A_ w);
1395} 1709}
1396 1710#endif
1397void
1398ev_idle_start (EV_P_ struct ev_idle *w)
1399{
1400 if (ev_is_active (w))
1401 return;
1402
1403 ev_start (EV_A_ (W)w, ++idlecnt);
1404 array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1405 idles [idlecnt - 1] = w;
1406}
1407
1408void
1409ev_idle_stop (EV_P_ struct ev_idle *w)
1410{
1411 ev_clear_pending (EV_A_ (W)w);
1412 if (ev_is_active (w))
1413 return;
1414
1415 idles [((W)w)->active - 1] = idles [--idlecnt];
1416 ev_stop (EV_A_ (W)w);
1417}
1418
1419void
1420ev_prepare_start (EV_P_ struct ev_prepare *w)
1421{
1422 if (ev_is_active (w))
1423 return;
1424
1425 ev_start (EV_A_ (W)w, ++preparecnt);
1426 array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1427 prepares [preparecnt - 1] = w;
1428}
1429
1430void
1431ev_prepare_stop (EV_P_ struct ev_prepare *w)
1432{
1433 ev_clear_pending (EV_A_ (W)w);
1434 if (ev_is_active (w))
1435 return;
1436
1437 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1438 ev_stop (EV_A_ (W)w);
1439}
1440
1441void
1442ev_check_start (EV_P_ struct ev_check *w)
1443{
1444 if (ev_is_active (w))
1445 return;
1446
1447 ev_start (EV_A_ (W)w, ++checkcnt);
1448 array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1449 checks [checkcnt - 1] = w;
1450}
1451
1452void
1453ev_check_stop (EV_P_ struct ev_check *w)
1454{
1455 ev_clear_pending (EV_A_ (W)w);
1456 if (ev_is_active (w))
1457 return;
1458
1459 checks [((W)w)->active - 1] = checks [--checkcnt];
1460 ev_stop (EV_A_ (W)w);
1461}
1462 1711
1463#ifndef SA_RESTART 1712#ifndef SA_RESTART
1464# define SA_RESTART 0 1713# define SA_RESTART 0
1465#endif 1714#endif
1466 1715
1467void 1716void
1468ev_signal_start (EV_P_ struct ev_signal *w) 1717ev_signal_start (EV_P_ ev_signal *w)
1469{ 1718{
1470#if EV_MULTIPLICITY 1719#if EV_MULTIPLICITY
1471 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1720 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1472#endif 1721#endif
1473 if (ev_is_active (w)) 1722 if (expect_false (ev_is_active (w)))
1474 return; 1723 return;
1475 1724
1476 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1725 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1477 1726
1478 ev_start (EV_A_ (W)w, 1); 1727 ev_start (EV_A_ (W)w, 1);
1479 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); 1728 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1480 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1729 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1481 1730
1482 if (!((WL)w)->next) 1731 if (!((WL)w)->next)
1483 { 1732 {
1484#if WIN32 1733#if _WIN32
1485 signal (w->signum, sighandler); 1734 signal (w->signum, sighandler);
1486#else 1735#else
1487 struct sigaction sa; 1736 struct sigaction sa;
1488 sa.sa_handler = sighandler; 1737 sa.sa_handler = sighandler;
1489 sigfillset (&sa.sa_mask); 1738 sigfillset (&sa.sa_mask);
… …
1492#endif 1741#endif
1493 } 1742 }
1494} 1743}
1495 1744
1496void 1745void
1497ev_signal_stop (EV_P_ struct ev_signal *w) 1746ev_signal_stop (EV_P_ ev_signal *w)
1498{ 1747{
1499 ev_clear_pending (EV_A_ (W)w); 1748 ev_clear_pending (EV_A_ (W)w);
1500 if (!ev_is_active (w)) 1749 if (expect_false (!ev_is_active (w)))
1501 return; 1750 return;
1502 1751
1503 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1752 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1504 ev_stop (EV_A_ (W)w); 1753 ev_stop (EV_A_ (W)w);
1505 1754
1506 if (!signals [w->signum - 1].head) 1755 if (!signals [w->signum - 1].head)
1507 signal (w->signum, SIG_DFL); 1756 signal (w->signum, SIG_DFL);
1508} 1757}
1509 1758
1510void 1759void
1511ev_child_start (EV_P_ struct ev_child *w) 1760ev_child_start (EV_P_ ev_child *w)
1512{ 1761{
1513#if EV_MULTIPLICITY 1762#if EV_MULTIPLICITY
1514 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1763 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1515#endif 1764#endif
1516 if (ev_is_active (w)) 1765 if (expect_false (ev_is_active (w)))
1517 return; 1766 return;
1518 1767
1519 ev_start (EV_A_ (W)w, 1); 1768 ev_start (EV_A_ (W)w, 1);
1520 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1769 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1521} 1770}
1522 1771
1523void 1772void
1524ev_child_stop (EV_P_ struct ev_child *w) 1773ev_child_stop (EV_P_ ev_child *w)
1525{ 1774{
1526 ev_clear_pending (EV_A_ (W)w); 1775 ev_clear_pending (EV_A_ (W)w);
1527 if (ev_is_active (w)) 1776 if (expect_false (!ev_is_active (w)))
1528 return; 1777 return;
1529 1778
1530 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1779 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1531 ev_stop (EV_A_ (W)w); 1780 ev_stop (EV_A_ (W)w);
1532} 1781}
1533 1782
1783#if EV_STAT_ENABLE
1784
1785# ifdef _WIN32
1786# undef lstat
1787# define lstat(a,b) _stati64 (a,b)
1788# endif
1789
1790#define DEF_STAT_INTERVAL 5.0074891
1791#define MIN_STAT_INTERVAL 0.1074891
1792
1793static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1794
1795#if EV_USE_INOTIFY
1796# define EV_INOTIFY_BUFSIZE 8192
1797
1798static void noinline
1799infy_add (EV_P_ ev_stat *w)
1800{
1801 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);
1802
1803 if (w->wd < 0)
1804 {
1805 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1806
1807 /* monitor some parent directory for speedup hints */
1808 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1809 {
1810 char path [4096];
1811 strcpy (path, w->path);
1812
1813 do
1814 {
1815 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1816 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1817
1818 char *pend = strrchr (path, '/');
1819
1820 if (!pend)
1821 break; /* whoops, no '/', complain to your admin */
1822
1823 *pend = 0;
1824 w->wd = inotify_add_watch (fs_fd, path, mask);
1825 }
1826 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1827 }
1828 }
1829 else
1830 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1831
1832 if (w->wd >= 0)
1833 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1834}
1835
1836static void noinline
1837infy_del (EV_P_ ev_stat *w)
1838{
1839 int slot;
1840 int wd = w->wd;
1841
1842 if (wd < 0)
1843 return;
1844
1845 w->wd = -2;
1846 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1847 wlist_del (&fs_hash [slot].head, (WL)w);
1848
1849 /* remove this watcher, if others are watching it, they will rearm */
1850 inotify_rm_watch (fs_fd, wd);
1851}
1852
1853static void noinline
1854infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1855{
1856 if (slot < 0)
1857 /* overflow, need to check for all hahs slots */
1858 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1859 infy_wd (EV_A_ slot, wd, ev);
1860 else
1861 {
1862 WL w_;
1863
1864 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1865 {
1866 ev_stat *w = (ev_stat *)w_;
1867 w_ = w_->next; /* lets us remove this watcher and all before it */
1868
1869 if (w->wd == wd || wd == -1)
1870 {
1871 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1872 {
1873 w->wd = -1;
1874 infy_add (EV_A_ w); /* re-add, no matter what */
1875 }
1876
1877 stat_timer_cb (EV_A_ &w->timer, 0);
1878 }
1879 }
1880 }
1881}
1882
1883static void
1884infy_cb (EV_P_ ev_io *w, int revents)
1885{
1886 char buf [EV_INOTIFY_BUFSIZE];
1887 struct inotify_event *ev = (struct inotify_event *)buf;
1888 int ofs;
1889 int len = read (fs_fd, buf, sizeof (buf));
1890
1891 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1892 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1893}
1894
1895void inline_size
1896infy_init (EV_P)
1897{
1898 if (fs_fd != -2)
1899 return;
1900
1901 fs_fd = inotify_init ();
1902
1903 if (fs_fd >= 0)
1904 {
1905 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1906 ev_set_priority (&fs_w, EV_MAXPRI);
1907 ev_io_start (EV_A_ &fs_w);
1908 }
1909}
1910
1911void inline_size
1912infy_fork (EV_P)
1913{
1914 int slot;
1915
1916 if (fs_fd < 0)
1917 return;
1918
1919 close (fs_fd);
1920 fs_fd = inotify_init ();
1921
1922 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1923 {
1924 WL w_ = fs_hash [slot].head;
1925 fs_hash [slot].head = 0;
1926
1927 while (w_)
1928 {
1929 ev_stat *w = (ev_stat *)w_;
1930 w_ = w_->next; /* lets us add this watcher */
1931
1932 w->wd = -1;
1933
1934 if (fs_fd >= 0)
1935 infy_add (EV_A_ w); /* re-add, no matter what */
1936 else
1937 ev_timer_start (EV_A_ &w->timer);
1938 }
1939
1940 }
1941}
1942
1943#endif
1944
1945void
1946ev_stat_stat (EV_P_ ev_stat *w)
1947{
1948 if (lstat (w->path, &w->attr) < 0)
1949 w->attr.st_nlink = 0;
1950 else if (!w->attr.st_nlink)
1951 w->attr.st_nlink = 1;
1952}
1953
1954static void noinline
1955stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1956{
1957 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1958
1959 /* we copy this here each the time so that */
1960 /* prev has the old value when the callback gets invoked */
1961 w->prev = w->attr;
1962 ev_stat_stat (EV_A_ w);
1963
1964 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
1965 if (
1966 w->prev.st_dev != w->attr.st_dev
1967 || w->prev.st_ino != w->attr.st_ino
1968 || w->prev.st_mode != w->attr.st_mode
1969 || w->prev.st_nlink != w->attr.st_nlink
1970 || w->prev.st_uid != w->attr.st_uid
1971 || w->prev.st_gid != w->attr.st_gid
1972 || w->prev.st_rdev != w->attr.st_rdev
1973 || w->prev.st_size != w->attr.st_size
1974 || w->prev.st_atime != w->attr.st_atime
1975 || w->prev.st_mtime != w->attr.st_mtime
1976 || w->prev.st_ctime != w->attr.st_ctime
1977 ) {
1978 #if EV_USE_INOTIFY
1979 infy_del (EV_A_ w);
1980 infy_add (EV_A_ w);
1981 ev_stat_stat (EV_A_ w); /* avoid race... */
1982 #endif
1983
1984 ev_feed_event (EV_A_ w, EV_STAT);
1985 }
1986}
1987
1988void
1989ev_stat_start (EV_P_ ev_stat *w)
1990{
1991 if (expect_false (ev_is_active (w)))
1992 return;
1993
1994 /* since we use memcmp, we need to clear any padding data etc. */
1995 memset (&w->prev, 0, sizeof (ev_statdata));
1996 memset (&w->attr, 0, sizeof (ev_statdata));
1997
1998 ev_stat_stat (EV_A_ w);
1999
2000 if (w->interval < MIN_STAT_INTERVAL)
2001 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
2002
2003 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
2004 ev_set_priority (&w->timer, ev_priority (w));
2005
2006#if EV_USE_INOTIFY
2007 infy_init (EV_A);
2008
2009 if (fs_fd >= 0)
2010 infy_add (EV_A_ w);
2011 else
2012#endif
2013 ev_timer_start (EV_A_ &w->timer);
2014
2015 ev_start (EV_A_ (W)w, 1);
2016}
2017
2018void
2019ev_stat_stop (EV_P_ ev_stat *w)
2020{
2021 ev_clear_pending (EV_A_ (W)w);
2022 if (expect_false (!ev_is_active (w)))
2023 return;
2024
2025#if EV_USE_INOTIFY
2026 infy_del (EV_A_ w);
2027#endif
2028 ev_timer_stop (EV_A_ &w->timer);
2029
2030 ev_stop (EV_A_ (W)w);
2031}
2032#endif
2033
2034#if EV_IDLE_ENABLE
2035void
2036ev_idle_start (EV_P_ ev_idle *w)
2037{
2038 if (expect_false (ev_is_active (w)))
2039 return;
2040
2041 pri_adjust (EV_A_ (W)w);
2042
2043 {
2044 int active = ++idlecnt [ABSPRI (w)];
2045
2046 ++idleall;
2047 ev_start (EV_A_ (W)w, active);
2048
2049 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2);
2050 idles [ABSPRI (w)][active - 1] = w;
2051 }
2052}
2053
2054void
2055ev_idle_stop (EV_P_ ev_idle *w)
2056{
2057 ev_clear_pending (EV_A_ (W)w);
2058 if (expect_false (!ev_is_active (w)))
2059 return;
2060
2061 {
2062 int active = ((W)w)->active;
2063
2064 idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]];
2065 ((W)idles [ABSPRI (w)][active - 1])->active = active;
2066
2067 ev_stop (EV_A_ (W)w);
2068 --idleall;
2069 }
2070}
2071#endif
2072
2073void
2074ev_prepare_start (EV_P_ ev_prepare *w)
2075{
2076 if (expect_false (ev_is_active (w)))
2077 return;
2078
2079 ev_start (EV_A_ (W)w, ++preparecnt);
2080 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2081 prepares [preparecnt - 1] = w;
2082}
2083
2084void
2085ev_prepare_stop (EV_P_ ev_prepare *w)
2086{
2087 ev_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 prepares [active - 1] = prepares [--preparecnt];
2094 ((W)prepares [active - 1])->active = active;
2095 }
2096
2097 ev_stop (EV_A_ (W)w);
2098}
2099
2100void
2101ev_check_start (EV_P_ ev_check *w)
2102{
2103 if (expect_false (ev_is_active (w)))
2104 return;
2105
2106 ev_start (EV_A_ (W)w, ++checkcnt);
2107 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2108 checks [checkcnt - 1] = w;
2109}
2110
2111void
2112ev_check_stop (EV_P_ ev_check *w)
2113{
2114 ev_clear_pending (EV_A_ (W)w);
2115 if (expect_false (!ev_is_active (w)))
2116 return;
2117
2118 {
2119 int active = ((W)w)->active;
2120 checks [active - 1] = checks [--checkcnt];
2121 ((W)checks [active - 1])->active = active;
2122 }
2123
2124 ev_stop (EV_A_ (W)w);
2125}
2126
2127#if EV_EMBED_ENABLE
2128void noinline
2129ev_embed_sweep (EV_P_ ev_embed *w)
2130{
2131 ev_loop (w->loop, EVLOOP_NONBLOCK);
2132}
2133
2134static void
2135embed_cb (EV_P_ ev_io *io, int revents)
2136{
2137 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2138
2139 if (ev_cb (w))
2140 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2141 else
2142 ev_embed_sweep (loop, w);
2143}
2144
2145void
2146ev_embed_start (EV_P_ ev_embed *w)
2147{
2148 if (expect_false (ev_is_active (w)))
2149 return;
2150
2151 {
2152 struct ev_loop *loop = w->loop;
2153 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2154 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2155 }
2156
2157 ev_set_priority (&w->io, ev_priority (w));
2158 ev_io_start (EV_A_ &w->io);
2159
2160 ev_start (EV_A_ (W)w, 1);
2161}
2162
2163void
2164ev_embed_stop (EV_P_ ev_embed *w)
2165{
2166 ev_clear_pending (EV_A_ (W)w);
2167 if (expect_false (!ev_is_active (w)))
2168 return;
2169
2170 ev_io_stop (EV_A_ &w->io);
2171
2172 ev_stop (EV_A_ (W)w);
2173}
2174#endif
2175
2176#if EV_FORK_ENABLE
2177void
2178ev_fork_start (EV_P_ ev_fork *w)
2179{
2180 if (expect_false (ev_is_active (w)))
2181 return;
2182
2183 ev_start (EV_A_ (W)w, ++forkcnt);
2184 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2185 forks [forkcnt - 1] = w;
2186}
2187
2188void
2189ev_fork_stop (EV_P_ ev_fork *w)
2190{
2191 ev_clear_pending (EV_A_ (W)w);
2192 if (expect_false (!ev_is_active (w)))
2193 return;
2194
2195 {
2196 int active = ((W)w)->active;
2197 forks [active - 1] = forks [--forkcnt];
2198 ((W)forks [active - 1])->active = active;
2199 }
2200
2201 ev_stop (EV_A_ (W)w);
2202}
2203#endif
2204
1534/*****************************************************************************/ 2205/*****************************************************************************/
1535 2206
1536struct ev_once 2207struct ev_once
1537{ 2208{
1538 struct ev_io io; 2209 ev_io io;
1539 struct ev_timer to; 2210 ev_timer to;
1540 void (*cb)(int revents, void *arg); 2211 void (*cb)(int revents, void *arg);
1541 void *arg; 2212 void *arg;
1542}; 2213};
1543 2214
1544static void 2215static void
… …
1553 2224
1554 cb (revents, arg); 2225 cb (revents, arg);
1555} 2226}
1556 2227
1557static void 2228static void
1558once_cb_io (EV_P_ struct ev_io *w, int revents) 2229once_cb_io (EV_P_ ev_io *w, int revents)
1559{ 2230{
1560 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2231 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1561} 2232}
1562 2233
1563static void 2234static void
1564once_cb_to (EV_P_ struct ev_timer *w, int revents) 2235once_cb_to (EV_P_ ev_timer *w, int revents)
1565{ 2236{
1566 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2237 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1567} 2238}
1568 2239
1569void 2240void
1570ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2241ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1571{ 2242{
1572 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 2243 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1573 2244
1574 if (!once) 2245 if (expect_false (!once))
2246 {
1575 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2247 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1576 else 2248 return;
1577 { 2249 }
2250
1578 once->cb = cb; 2251 once->cb = cb;
1579 once->arg = arg; 2252 once->arg = arg;
1580 2253
1581 ev_init (&once->io, once_cb_io); 2254 ev_init (&once->io, once_cb_io);
1582 if (fd >= 0) 2255 if (fd >= 0)
1583 { 2256 {
1584 ev_io_set (&once->io, fd, events); 2257 ev_io_set (&once->io, fd, events);
1585 ev_io_start (EV_A_ &once->io); 2258 ev_io_start (EV_A_ &once->io);
1586 } 2259 }
1587 2260
1588 ev_init (&once->to, once_cb_to); 2261 ev_init (&once->to, once_cb_to);
1589 if (timeout >= 0.) 2262 if (timeout >= 0.)
1590 { 2263 {
1591 ev_timer_set (&once->to, timeout, 0.); 2264 ev_timer_set (&once->to, timeout, 0.);
1592 ev_timer_start (EV_A_ &once->to); 2265 ev_timer_start (EV_A_ &once->to);
1593 }
1594 } 2266 }
1595} 2267}
1596 2268
2269#ifdef __cplusplus
2270}
2271#endif
2272

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