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Comparing libev/ev.c (file contents):
Revision 1.72 by root, Tue Nov 6 16:09:37 2007 UTC vs.
Revision 1.158 by root, Thu Nov 29 17:28:13 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)->priority - EV_MINPRI)
146 247
248#define EMPTY0 /* 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
153#if WIN32 257#ifdef _WIN32
154/* note: the comment below could not be substantiated, but what would I care */ 258# include "ev_win32.c"
155/* MSDN says this is required to handle SIGFPE */
156volatile double SIGFPE_REQ = 0.0f;
157
158static int
159ev_socketpair_tcp (int filedes [2])
160{
161 struct sockaddr_in addr = { 0 };
162 int addr_size = sizeof (addr);
163 SOCKET listener;
164 SOCKET sock [2] = { -1, -1 };
165
166 if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
167 return -1;
168
169 addr.sin_family = AF_INET;
170 addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
171 addr.sin_port = 0;
172
173 if (bind (listener, (struct sockaddr *)&addr, addr_size))
174 goto fail;
175
176 if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
177 goto fail;
178
179 if (listen (listener, 1))
180 goto fail;
181
182 if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
183 goto fail;
184
185 if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
186 goto fail;
187
188 if ((sock[1] = accept (listener, 0, 0)) < 0)
189 goto fail;
190
191 closesocket (listener);
192
193 filedes [0] = sock [0];
194 filedes [1] = sock [1];
195
196 return 0;
197
198fail:
199 closesocket (listener);
200
201 if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
202 if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
203
204 return -1;
205}
206
207# define ev_pipe(filedes) ev_socketpair_tcp (filedes)
208#else
209# define ev_pipe(filedes) pipe (filedes)
210#endif 259#endif
211 260
212/*****************************************************************************/ 261/*****************************************************************************/
213 262
214static void (*syserr_cb)(const char *msg); 263static void (*syserr_cb)(const char *msg);
215 264
265void
216void ev_set_syserr_cb (void (*cb)(const char *msg)) 266ev_set_syserr_cb (void (*cb)(const char *msg))
217{ 267{
218 syserr_cb = cb; 268 syserr_cb = cb;
219} 269}
220 270
221static void 271static void noinline
222syserr (const char *msg) 272syserr (const char *msg)
223{ 273{
224 if (!msg) 274 if (!msg)
225 msg = "(libev) system error"; 275 msg = "(libev) system error";
226 276
… …
233 } 283 }
234} 284}
235 285
236static void *(*alloc)(void *ptr, long size); 286static void *(*alloc)(void *ptr, long size);
237 287
288void
238void ev_set_allocator (void *(*cb)(void *ptr, long size)) 289ev_set_allocator (void *(*cb)(void *ptr, long size))
239{ 290{
240 alloc = cb; 291 alloc = cb;
241} 292}
242 293
243static void * 294inline_speed void *
244ev_realloc (void *ptr, long size) 295ev_realloc (void *ptr, long size)
245{ 296{
246 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); 297 ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
247 298
248 if (!ptr && size) 299 if (!ptr && size)
… …
262typedef struct 313typedef struct
263{ 314{
264 WL head; 315 WL head;
265 unsigned char events; 316 unsigned char events;
266 unsigned char reify; 317 unsigned char reify;
318#if EV_SELECT_IS_WINSOCKET
319 SOCKET handle;
320#endif
267} ANFD; 321} ANFD;
268 322
269typedef struct 323typedef struct
270{ 324{
271 W w; 325 W w;
272 int events; 326 int events;
273} ANPENDING; 327} ANPENDING;
274 328
329#if EV_USE_INOTIFY
330typedef struct
331{
332 WL head;
333} ANFS;
334#endif
335
275#if EV_MULTIPLICITY 336#if EV_MULTIPLICITY
276 337
277struct ev_loop 338 struct ev_loop
278{ 339 {
340 ev_tstamp ev_rt_now;
341 #define ev_rt_now ((loop)->ev_rt_now)
279# define VAR(name,decl) decl; 342 #define VAR(name,decl) decl;
280# include "ev_vars.h" 343 #include "ev_vars.h"
281};
282# undef VAR 344 #undef VAR
345 };
283# 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;
284 350
285#else 351#else
286 352
353 ev_tstamp ev_rt_now;
287# define VAR(name,decl) static decl; 354 #define VAR(name,decl) static decl;
288# include "ev_vars.h" 355 #include "ev_vars.h"
289# undef VAR 356 #undef VAR
357
358 static int ev_default_loop_ptr;
290 359
291#endif 360#endif
292 361
293/*****************************************************************************/ 362/*****************************************************************************/
294 363
295inline ev_tstamp 364ev_tstamp
296ev_time (void) 365ev_time (void)
297{ 366{
298#if EV_USE_REALTIME 367#if EV_USE_REALTIME
299 struct timespec ts; 368 struct timespec ts;
300 clock_gettime (CLOCK_REALTIME, &ts); 369 clock_gettime (CLOCK_REALTIME, &ts);
… …
304 gettimeofday (&tv, 0); 373 gettimeofday (&tv, 0);
305 return tv.tv_sec + tv.tv_usec * 1e-6; 374 return tv.tv_sec + tv.tv_usec * 1e-6;
306#endif 375#endif
307} 376}
308 377
309inline ev_tstamp 378ev_tstamp inline_size
310get_clock (void) 379get_clock (void)
311{ 380{
312#if EV_USE_MONOTONIC 381#if EV_USE_MONOTONIC
313 if (expect_true (have_monotonic)) 382 if (expect_true (have_monotonic))
314 { 383 {
… …
319#endif 388#endif
320 389
321 return ev_time (); 390 return ev_time ();
322} 391}
323 392
393#if EV_MULTIPLICITY
324ev_tstamp 394ev_tstamp
325ev_now (EV_P) 395ev_now (EV_P)
326{ 396{
327 return rt_now; 397 return ev_rt_now;
328} 398}
399#endif
329 400
330#define array_roundsize(base,n) ((n) | 4 & ~3) 401#define array_roundsize(type,n) (((n) | 4) & ~3)
331 402
332#define array_needsize(base,cur,cnt,init) \ 403#define array_needsize(type,base,cur,cnt,init) \
333 if (expect_false ((cnt) > cur)) \ 404 if (expect_false ((cnt) > cur)) \
334 { \ 405 { \
335 int newcnt = cur; \ 406 int newcnt = cur; \
336 do \ 407 do \
337 { \ 408 { \
338 newcnt = array_roundsize (base, newcnt << 1); \ 409 newcnt = array_roundsize (type, newcnt << 1); \
339 } \ 410 } \
340 while ((cnt) > newcnt); \ 411 while ((cnt) > newcnt); \
341 \ 412 \
342 base = ev_realloc (base, sizeof (*base) * (newcnt)); \ 413 base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
343 init (base + cur, newcnt - cur); \ 414 init (base + cur, newcnt - cur); \
344 cur = newcnt; \ 415 cur = newcnt; \
345 } 416 }
346 417
347#define array_slim(stem) \ 418#define array_slim(type,stem) \
348 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 419 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
349 { \ 420 { \
350 stem ## max = array_roundsize (stem ## cnt >> 1); \ 421 stem ## max = array_roundsize (stem ## cnt >> 1); \
351 base = ev_realloc (base, sizeof (*base) * (stem ## max)); \ 422 base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
352 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ 423 fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
353 } 424 }
354
355/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
356/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
357#define array_free_microshit(stem) \
358 ev_free (stem ## s); stem ## cnt = stem ## max = 0;
359 425
360#define array_free(stem, idx) \ 426#define array_free(stem, idx) \
361 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; 427 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
362 428
363/*****************************************************************************/ 429/*****************************************************************************/
364 430
365static void 431void noinline
432ev_feed_event (EV_P_ void *w, int revents)
433{
434 W w_ = (W)w;
435
436 if (expect_false (w_->pending))
437 {
438 pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
439 return;
440 }
441
442 w_->pending = ++pendingcnt [ABSPRI (w_)];
443 array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
444 pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
445 pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
446}
447
448void inline_size
449queue_events (EV_P_ W *events, int eventcnt, int type)
450{
451 int i;
452
453 for (i = 0; i < eventcnt; ++i)
454 ev_feed_event (EV_A_ events [i], type);
455}
456
457/*****************************************************************************/
458
459void inline_size
366anfds_init (ANFD *base, int count) 460anfds_init (ANFD *base, int count)
367{ 461{
368 while (count--) 462 while (count--)
369 { 463 {
370 base->head = 0; 464 base->head = 0;
… …
373 467
374 ++base; 468 ++base;
375 } 469 }
376} 470}
377 471
378static void 472void inline_speed
379event (EV_P_ W w, int events)
380{
381 if (w->pending)
382 {
383 pendings [ABSPRI (w)][w->pending - 1].events |= events;
384 return;
385 }
386
387 w->pending = ++pendingcnt [ABSPRI (w)];
388 array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
389 pendings [ABSPRI (w)][w->pending - 1].w = w;
390 pendings [ABSPRI (w)][w->pending - 1].events = events;
391}
392
393static void
394queue_events (EV_P_ W *events, int eventcnt, int type)
395{
396 int i;
397
398 for (i = 0; i < eventcnt; ++i)
399 event (EV_A_ events [i], type);
400}
401
402static void
403fd_event (EV_P_ int fd, int events) 473fd_event (EV_P_ int fd, int revents)
404{ 474{
405 ANFD *anfd = anfds + fd; 475 ANFD *anfd = anfds + fd;
406 struct ev_io *w; 476 ev_io *w;
407 477
408 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 478 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
409 { 479 {
410 int ev = w->events & events; 480 int ev = w->events & revents;
411 481
412 if (ev) 482 if (ev)
413 event (EV_A_ (W)w, ev); 483 ev_feed_event (EV_A_ (W)w, ev);
414 } 484 }
415} 485}
416 486
417/*****************************************************************************/ 487void
488ev_feed_fd_event (EV_P_ int fd, int revents)
489{
490 fd_event (EV_A_ fd, revents);
491}
418 492
419static void 493void inline_size
420fd_reify (EV_P) 494fd_reify (EV_P)
421{ 495{
422 int i; 496 int i;
423 497
424 for (i = 0; i < fdchangecnt; ++i) 498 for (i = 0; i < fdchangecnt; ++i)
425 { 499 {
426 int fd = fdchanges [i]; 500 int fd = fdchanges [i];
427 ANFD *anfd = anfds + fd; 501 ANFD *anfd = anfds + fd;
428 struct ev_io *w; 502 ev_io *w;
429 503
430 int events = 0; 504 int events = 0;
431 505
432 for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) 506 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
433 events |= w->events; 507 events |= w->events;
434 508
509#if EV_SELECT_IS_WINSOCKET
510 if (events)
511 {
512 unsigned long argp;
513 anfd->handle = _get_osfhandle (fd);
514 assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
515 }
516#endif
517
435 anfd->reify = 0; 518 anfd->reify = 0;
436 519
437 method_modify (EV_A_ fd, anfd->events, events); 520 backend_modify (EV_A_ fd, anfd->events, events);
438 anfd->events = events; 521 anfd->events = events;
439 } 522 }
440 523
441 fdchangecnt = 0; 524 fdchangecnt = 0;
442} 525}
443 526
444static void 527void inline_size
445fd_change (EV_P_ int fd) 528fd_change (EV_P_ int fd)
446{ 529{
447 if (anfds [fd].reify) 530 if (expect_false (anfds [fd].reify))
448 return; 531 return;
449 532
450 anfds [fd].reify = 1; 533 anfds [fd].reify = 1;
451 534
452 ++fdchangecnt; 535 ++fdchangecnt;
453 array_needsize (fdchanges, fdchangemax, fdchangecnt, (void)); 536 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
454 fdchanges [fdchangecnt - 1] = fd; 537 fdchanges [fdchangecnt - 1] = fd;
455} 538}
456 539
457static void 540void inline_speed
458fd_kill (EV_P_ int fd) 541fd_kill (EV_P_ int fd)
459{ 542{
460 struct ev_io *w; 543 ev_io *w;
461 544
462 while ((w = (struct ev_io *)anfds [fd].head)) 545 while ((w = (ev_io *)anfds [fd].head))
463 { 546 {
464 ev_io_stop (EV_A_ w); 547 ev_io_stop (EV_A_ w);
465 event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 548 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
466 } 549 }
467} 550}
468 551
469static int 552int inline_size
470fd_valid (int fd) 553fd_valid (int fd)
471{ 554{
472#ifdef WIN32 555#ifdef _WIN32
473 return !!win32_get_osfhandle (fd); 556 return _get_osfhandle (fd) != -1;
474#else 557#else
475 return fcntl (fd, F_GETFD) != -1; 558 return fcntl (fd, F_GETFD) != -1;
476#endif 559#endif
477} 560}
478 561
479/* called on EBADF to verify fds */ 562/* called on EBADF to verify fds */
480static void 563static void noinline
481fd_ebadf (EV_P) 564fd_ebadf (EV_P)
482{ 565{
483 int fd; 566 int fd;
484 567
485 for (fd = 0; fd < anfdmax; ++fd) 568 for (fd = 0; fd < anfdmax; ++fd)
… …
487 if (!fd_valid (fd) == -1 && errno == EBADF) 570 if (!fd_valid (fd) == -1 && errno == EBADF)
488 fd_kill (EV_A_ fd); 571 fd_kill (EV_A_ fd);
489} 572}
490 573
491/* called on ENOMEM in select/poll to kill some fds and retry */ 574/* called on ENOMEM in select/poll to kill some fds and retry */
492static void 575static void noinline
493fd_enomem (EV_P) 576fd_enomem (EV_P)
494{ 577{
495 int fd; 578 int fd;
496 579
497 for (fd = anfdmax; fd--; ) 580 for (fd = anfdmax; fd--; )
… …
500 fd_kill (EV_A_ fd); 583 fd_kill (EV_A_ fd);
501 return; 584 return;
502 } 585 }
503} 586}
504 587
505/* usually called after fork if method needs to re-arm all fds from scratch */ 588/* usually called after fork if backend needs to re-arm all fds from scratch */
506static void 589static void noinline
507fd_rearm_all (EV_P) 590fd_rearm_all (EV_P)
508{ 591{
509 int fd; 592 int fd;
510 593
511 /* this should be highly optimised to not do anything but set a flag */
512 for (fd = 0; fd < anfdmax; ++fd) 594 for (fd = 0; fd < anfdmax; ++fd)
513 if (anfds [fd].events) 595 if (anfds [fd].events)
514 { 596 {
515 anfds [fd].events = 0; 597 anfds [fd].events = 0;
516 fd_change (EV_A_ fd); 598 fd_change (EV_A_ fd);
517 } 599 }
518} 600}
519 601
520/*****************************************************************************/ 602/*****************************************************************************/
521 603
522static void 604void inline_speed
523upheap (WT *heap, int k) 605upheap (WT *heap, int k)
524{ 606{
525 WT w = heap [k]; 607 WT w = heap [k];
526 608
527 while (k && heap [k >> 1]->at > w->at) 609 while (k && heap [k >> 1]->at > w->at)
… …
534 heap [k] = w; 616 heap [k] = w;
535 ((W)heap [k])->active = k + 1; 617 ((W)heap [k])->active = k + 1;
536 618
537} 619}
538 620
539static void 621void inline_speed
540downheap (WT *heap, int N, int k) 622downheap (WT *heap, int N, int k)
541{ 623{
542 WT w = heap [k]; 624 WT w = heap [k];
543 625
544 while (k < (N >> 1)) 626 while (k < (N >> 1))
… …
558 640
559 heap [k] = w; 641 heap [k] = w;
560 ((W)heap [k])->active = k + 1; 642 ((W)heap [k])->active = k + 1;
561} 643}
562 644
645void inline_size
646adjustheap (WT *heap, int N, int k)
647{
648 upheap (heap, k);
649 downheap (heap, N, k);
650}
651
563/*****************************************************************************/ 652/*****************************************************************************/
564 653
565typedef struct 654typedef struct
566{ 655{
567 WL head; 656 WL head;
… …
571static ANSIG *signals; 660static ANSIG *signals;
572static int signalmax; 661static int signalmax;
573 662
574static int sigpipe [2]; 663static int sigpipe [2];
575static sig_atomic_t volatile gotsig; 664static sig_atomic_t volatile gotsig;
576static struct ev_io sigev; 665static ev_io sigev;
577 666
578static void 667void inline_size
579signals_init (ANSIG *base, int count) 668signals_init (ANSIG *base, int count)
580{ 669{
581 while (count--) 670 while (count--)
582 { 671 {
583 base->head = 0; 672 base->head = 0;
… …
588} 677}
589 678
590static void 679static void
591sighandler (int signum) 680sighandler (int signum)
592{ 681{
593#if WIN32 682#if _WIN32
594 signal (signum, sighandler); 683 signal (signum, sighandler);
595#endif 684#endif
596 685
597 signals [signum - 1].gotsig = 1; 686 signals [signum - 1].gotsig = 1;
598 687
… …
603 write (sigpipe [1], &signum, 1); 692 write (sigpipe [1], &signum, 1);
604 errno = old_errno; 693 errno = old_errno;
605 } 694 }
606} 695}
607 696
697void noinline
698ev_feed_signal_event (EV_P_ int signum)
699{
700 WL w;
701
702#if EV_MULTIPLICITY
703 assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
704#endif
705
706 --signum;
707
708 if (signum < 0 || signum >= signalmax)
709 return;
710
711 signals [signum].gotsig = 0;
712
713 for (w = signals [signum].head; w; w = w->next)
714 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
715}
716
608static void 717static void
609sigcb (EV_P_ struct ev_io *iow, int revents) 718sigcb (EV_P_ ev_io *iow, int revents)
610{ 719{
611 WL w;
612 int signum; 720 int signum;
613 721
614 read (sigpipe [0], &revents, 1); 722 read (sigpipe [0], &revents, 1);
615 gotsig = 0; 723 gotsig = 0;
616 724
617 for (signum = signalmax; signum--; ) 725 for (signum = signalmax; signum--; )
618 if (signals [signum].gotsig) 726 if (signals [signum].gotsig)
619 { 727 ev_feed_signal_event (EV_A_ signum + 1);
620 signals [signum].gotsig = 0;
621
622 for (w = signals [signum].head; w; w = w->next)
623 event (EV_A_ (W)w, EV_SIGNAL);
624 }
625} 728}
626 729
627static void 730void inline_size
731fd_intern (int fd)
732{
733#ifdef _WIN32
734 int arg = 1;
735 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
736#else
737 fcntl (fd, F_SETFD, FD_CLOEXEC);
738 fcntl (fd, F_SETFL, O_NONBLOCK);
739#endif
740}
741
742static void noinline
628siginit (EV_P) 743siginit (EV_P)
629{ 744{
630#ifndef WIN32 745 fd_intern (sigpipe [0]);
631 fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); 746 fd_intern (sigpipe [1]);
632 fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
633
634 /* rather than sort out wether we really need nb, set it */
635 fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
636 fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
637#endif
638 747
639 ev_io_set (&sigev, sigpipe [0], EV_READ); 748 ev_io_set (&sigev, sigpipe [0], EV_READ);
640 ev_io_start (EV_A_ &sigev); 749 ev_io_start (EV_A_ &sigev);
641 ev_unref (EV_A); /* child watcher should not keep loop alive */ 750 ev_unref (EV_A); /* child watcher should not keep loop alive */
642} 751}
643 752
644/*****************************************************************************/ 753/*****************************************************************************/
645 754
646static struct ev_child *childs [PID_HASHSIZE]; 755static ev_child *childs [EV_PID_HASHSIZE];
647 756
648#ifndef WIN32 757#ifndef _WIN32
649 758
650static struct ev_signal childev; 759static ev_signal childev;
651 760
652#ifndef WCONTINUED 761void inline_speed
653# define WCONTINUED 0
654#endif
655
656static void
657child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) 762child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
658{ 763{
659 struct ev_child *w; 764 ev_child *w;
660 765
661 for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) 766 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
662 if (w->pid == pid || !w->pid) 767 if (w->pid == pid || !w->pid)
663 { 768 {
664 ev_priority (w) = ev_priority (sw); /* need to do it *now* */ 769 ev_priority (w) = ev_priority (sw); /* need to do it *now* */
665 w->rpid = pid; 770 w->rpid = pid;
666 w->rstatus = status; 771 w->rstatus = status;
667 event (EV_A_ (W)w, EV_CHILD); 772 ev_feed_event (EV_A_ (W)w, EV_CHILD);
668 } 773 }
669} 774}
670 775
776#ifndef WCONTINUED
777# define WCONTINUED 0
778#endif
779
671static void 780static void
672childcb (EV_P_ struct ev_signal *sw, int revents) 781childcb (EV_P_ ev_signal *sw, int revents)
673{ 782{
674 int pid, status; 783 int pid, status;
675 784
785 /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
676 if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) 786 if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
677 { 787 if (!WCONTINUED
788 || errno != EINVAL
789 || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
790 return;
791
678 /* make sure we are called again until all childs have been reaped */ 792 /* make sure we are called again until all childs have been reaped */
793 /* we need to do it this way so that the callback gets called before we continue */
679 event (EV_A_ (W)sw, EV_SIGNAL); 794 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
680 795
681 child_reap (EV_A_ sw, pid, pid, status); 796 child_reap (EV_A_ sw, pid, pid, status);
797 if (EV_PID_HASHSIZE > 1)
682 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ 798 child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
683 }
684} 799}
685 800
686#endif 801#endif
687 802
688/*****************************************************************************/ 803/*****************************************************************************/
689 804
805#if EV_USE_PORT
806# include "ev_port.c"
807#endif
690#if EV_USE_KQUEUE 808#if EV_USE_KQUEUE
691# include "ev_kqueue.c" 809# include "ev_kqueue.c"
692#endif 810#endif
693#if EV_USE_EPOLL 811#if EV_USE_EPOLL
694# include "ev_epoll.c" 812# include "ev_epoll.c"
… …
711{ 829{
712 return EV_VERSION_MINOR; 830 return EV_VERSION_MINOR;
713} 831}
714 832
715/* return true if we are running with elevated privileges and should ignore env variables */ 833/* return true if we are running with elevated privileges and should ignore env variables */
716static int 834int inline_size
717enable_secure (void) 835enable_secure (void)
718{ 836{
719#ifdef WIN32 837#ifdef _WIN32
720 return 0; 838 return 0;
721#else 839#else
722 return getuid () != geteuid () 840 return getuid () != geteuid ()
723 || getgid () != getegid (); 841 || getgid () != getegid ();
724#endif 842#endif
725} 843}
726 844
727int 845unsigned int
728ev_method (EV_P) 846ev_supported_backends (void)
729{ 847{
730 return method; 848 unsigned int flags = 0;
731}
732 849
733static void 850 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
734loop_init (EV_P_ int methods) 851 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
852 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
853 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
854 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
855
856 return flags;
857}
858
859unsigned int
860ev_recommended_backends (void)
735{ 861{
736 if (!method) 862 unsigned int flags = ev_supported_backends ();
863
864#ifndef __NetBSD__
865 /* kqueue is borked on everything but netbsd apparently */
866 /* it usually doesn't work correctly on anything but sockets and pipes */
867 flags &= ~EVBACKEND_KQUEUE;
868#endif
869#ifdef __APPLE__
870 // flags &= ~EVBACKEND_KQUEUE; for documentation
871 flags &= ~EVBACKEND_POLL;
872#endif
873
874 return flags;
875}
876
877unsigned int
878ev_embeddable_backends (void)
879{
880 return EVBACKEND_EPOLL
881 | EVBACKEND_KQUEUE
882 | EVBACKEND_PORT;
883}
884
885unsigned int
886ev_backend (EV_P)
887{
888 return backend;
889}
890
891static void noinline
892loop_init (EV_P_ unsigned int flags)
893{
894 if (!backend)
737 { 895 {
738#if EV_USE_MONOTONIC 896#if EV_USE_MONOTONIC
739 { 897 {
740 struct timespec ts; 898 struct timespec ts;
741 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 899 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
742 have_monotonic = 1; 900 have_monotonic = 1;
743 } 901 }
744#endif 902#endif
745 903
746 rt_now = ev_time (); 904 ev_rt_now = ev_time ();
747 mn_now = get_clock (); 905 mn_now = get_clock ();
748 now_floor = mn_now; 906 now_floor = mn_now;
749 rtmn_diff = rt_now - mn_now; 907 rtmn_diff = ev_rt_now - mn_now;
750 908
751 if (methods == EVMETHOD_AUTO) 909 /* pid check not overridable via env */
752 if (!enable_secure () && getenv ("LIBEV_METHODS")) 910#ifndef _WIN32
911 if (flags & EVFLAG_FORKCHECK)
912 curpid = getpid ();
913#endif
914
915 if (!(flags & EVFLAG_NOENV)
916 && !enable_secure ()
917 && getenv ("LIBEV_FLAGS"))
753 methods = atoi (getenv ("LIBEV_METHODS")); 918 flags = atoi (getenv ("LIBEV_FLAGS"));
754 else
755 methods = EVMETHOD_ANY;
756 919
757 method = 0; 920 if (!(flags & 0x0000ffffUL))
921 flags |= ev_recommended_backends ();
922
923 backend = 0;
924 backend_fd = -1;
758#if EV_USE_WIN32 925#if EV_USE_INOTIFY
759 if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); 926 fs_fd = -2;
927#endif
928
929#if EV_USE_PORT
930 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
760#endif 931#endif
761#if EV_USE_KQUEUE 932#if EV_USE_KQUEUE
762 if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); 933 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
763#endif 934#endif
764#if EV_USE_EPOLL 935#if EV_USE_EPOLL
765 if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); 936 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
766#endif 937#endif
767#if EV_USE_POLL 938#if EV_USE_POLL
768 if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); 939 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
769#endif 940#endif
770#if EV_USE_SELECT 941#if EV_USE_SELECT
771 if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); 942 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
772#endif 943#endif
773 944
774 ev_watcher_init (&sigev, sigcb); 945 ev_init (&sigev, sigcb);
775 ev_set_priority (&sigev, EV_MAXPRI); 946 ev_set_priority (&sigev, EV_MAXPRI);
776 } 947 }
777} 948}
778 949
779void 950static void noinline
780loop_destroy (EV_P) 951loop_destroy (EV_P)
781{ 952{
782 int i; 953 int i;
783 954
784#if EV_USE_WIN32 955#if EV_USE_INOTIFY
785 if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); 956 if (fs_fd >= 0)
957 close (fs_fd);
958#endif
959
960 if (backend_fd >= 0)
961 close (backend_fd);
962
963#if EV_USE_PORT
964 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
786#endif 965#endif
787#if EV_USE_KQUEUE 966#if EV_USE_KQUEUE
788 if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); 967 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
789#endif 968#endif
790#if EV_USE_EPOLL 969#if EV_USE_EPOLL
791 if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); 970 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
792#endif 971#endif
793#if EV_USE_POLL 972#if EV_USE_POLL
794 if (method == EVMETHOD_POLL ) poll_destroy (EV_A); 973 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
795#endif 974#endif
796#if EV_USE_SELECT 975#if EV_USE_SELECT
797 if (method == EVMETHOD_SELECT) select_destroy (EV_A); 976 if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
798#endif 977#endif
799 978
800 for (i = NUMPRI; i--; ) 979 for (i = NUMPRI; i--; )
801 array_free (pending, [i]); 980 array_free (pending, [i]);
802 981
803 /* have to use the microsoft-never-gets-it-right macro */ 982 /* have to use the microsoft-never-gets-it-right macro */
804 array_free_microshit (fdchange); 983 array_free (fdchange, EMPTY0);
805 array_free_microshit (timer); 984 array_free (timer, EMPTY0);
806 array_free_microshit (periodic); 985#if EV_PERIODIC_ENABLE
807 array_free_microshit (idle); 986 array_free (periodic, EMPTY0);
808 array_free_microshit (prepare); 987#endif
809 array_free_microshit (check); 988 array_free (idle, EMPTY0);
989 array_free (prepare, EMPTY0);
990 array_free (check, EMPTY0);
810 991
811 method = 0; 992 backend = 0;
812} 993}
813 994
814static void 995void inline_size infy_fork (EV_P);
996
997void inline_size
815loop_fork (EV_P) 998loop_fork (EV_P)
816{ 999{
1000#if EV_USE_PORT
1001 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
1002#endif
1003#if EV_USE_KQUEUE
1004 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
1005#endif
817#if EV_USE_EPOLL 1006#if EV_USE_EPOLL
818 if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); 1007 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
819#endif 1008#endif
820#if EV_USE_KQUEUE 1009#if EV_USE_INOTIFY
821 if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); 1010 infy_fork (EV_A);
822#endif 1011#endif
823 1012
824 if (ev_is_active (&sigev)) 1013 if (ev_is_active (&sigev))
825 { 1014 {
826 /* default loop */ 1015 /* default loop */
… …
828 ev_ref (EV_A); 1017 ev_ref (EV_A);
829 ev_io_stop (EV_A_ &sigev); 1018 ev_io_stop (EV_A_ &sigev);
830 close (sigpipe [0]); 1019 close (sigpipe [0]);
831 close (sigpipe [1]); 1020 close (sigpipe [1]);
832 1021
833 while (ev_pipe (sigpipe)) 1022 while (pipe (sigpipe))
834 syserr ("(libev) error creating pipe"); 1023 syserr ("(libev) error creating pipe");
835 1024
836 siginit (EV_A); 1025 siginit (EV_A);
837 } 1026 }
838 1027
839 postfork = 0; 1028 postfork = 0;
840} 1029}
841 1030
842#if EV_MULTIPLICITY 1031#if EV_MULTIPLICITY
843struct ev_loop * 1032struct ev_loop *
844ev_loop_new (int methods) 1033ev_loop_new (unsigned int flags)
845{ 1034{
846 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 1035 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
847 1036
848 memset (loop, 0, sizeof (struct ev_loop)); 1037 memset (loop, 0, sizeof (struct ev_loop));
849 1038
850 loop_init (EV_A_ methods); 1039 loop_init (EV_A_ flags);
851 1040
852 if (ev_method (EV_A)) 1041 if (ev_backend (EV_A))
853 return loop; 1042 return loop;
854 1043
855 return 0; 1044 return 0;
856} 1045}
857 1046
… …
869} 1058}
870 1059
871#endif 1060#endif
872 1061
873#if EV_MULTIPLICITY 1062#if EV_MULTIPLICITY
874struct ev_loop default_loop_struct;
875static struct ev_loop *default_loop;
876
877struct ev_loop * 1063struct ev_loop *
1064ev_default_loop_init (unsigned int flags)
878#else 1065#else
879static int default_loop;
880
881int 1066int
1067ev_default_loop (unsigned int flags)
882#endif 1068#endif
883ev_default_loop (int methods)
884{ 1069{
885 if (sigpipe [0] == sigpipe [1]) 1070 if (sigpipe [0] == sigpipe [1])
886 if (ev_pipe (sigpipe)) 1071 if (pipe (sigpipe))
887 return 0; 1072 return 0;
888 1073
889 if (!default_loop) 1074 if (!ev_default_loop_ptr)
890 { 1075 {
891#if EV_MULTIPLICITY 1076#if EV_MULTIPLICITY
892 struct ev_loop *loop = default_loop = &default_loop_struct; 1077 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
893#else 1078#else
894 default_loop = 1; 1079 ev_default_loop_ptr = 1;
895#endif 1080#endif
896 1081
897 loop_init (EV_A_ methods); 1082 loop_init (EV_A_ flags);
898 1083
899 if (ev_method (EV_A)) 1084 if (ev_backend (EV_A))
900 { 1085 {
901 siginit (EV_A); 1086 siginit (EV_A);
902 1087
903#ifndef WIN32 1088#ifndef _WIN32
904 ev_signal_init (&childev, childcb, SIGCHLD); 1089 ev_signal_init (&childev, childcb, SIGCHLD);
905 ev_set_priority (&childev, EV_MAXPRI); 1090 ev_set_priority (&childev, EV_MAXPRI);
906 ev_signal_start (EV_A_ &childev); 1091 ev_signal_start (EV_A_ &childev);
907 ev_unref (EV_A); /* child watcher should not keep loop alive */ 1092 ev_unref (EV_A); /* child watcher should not keep loop alive */
908#endif 1093#endif
909 } 1094 }
910 else 1095 else
911 default_loop = 0; 1096 ev_default_loop_ptr = 0;
912 } 1097 }
913 1098
914 return default_loop; 1099 return ev_default_loop_ptr;
915} 1100}
916 1101
917void 1102void
918ev_default_destroy (void) 1103ev_default_destroy (void)
919{ 1104{
920#if EV_MULTIPLICITY 1105#if EV_MULTIPLICITY
921 struct ev_loop *loop = default_loop; 1106 struct ev_loop *loop = ev_default_loop_ptr;
922#endif 1107#endif
923 1108
924#ifndef WIN32 1109#ifndef _WIN32
925 ev_ref (EV_A); /* child watcher */ 1110 ev_ref (EV_A); /* child watcher */
926 ev_signal_stop (EV_A_ &childev); 1111 ev_signal_stop (EV_A_ &childev);
927#endif 1112#endif
928 1113
929 ev_ref (EV_A); /* signal watcher */ 1114 ev_ref (EV_A); /* signal watcher */
… …
937 1122
938void 1123void
939ev_default_fork (void) 1124ev_default_fork (void)
940{ 1125{
941#if EV_MULTIPLICITY 1126#if EV_MULTIPLICITY
942 struct ev_loop *loop = default_loop; 1127 struct ev_loop *loop = ev_default_loop_ptr;
943#endif 1128#endif
944 1129
945 if (method) 1130 if (backend)
946 postfork = 1; 1131 postfork = 1;
947} 1132}
948 1133
949/*****************************************************************************/ 1134/*****************************************************************************/
950 1135
951static void 1136int inline_size
1137any_pending (EV_P)
1138{
1139 int pri;
1140
1141 for (pri = NUMPRI; pri--; )
1142 if (pendingcnt [pri])
1143 return 1;
1144
1145 return 0;
1146}
1147
1148void inline_speed
952call_pending (EV_P) 1149call_pending (EV_P)
953{ 1150{
954 int pri; 1151 int pri;
955 1152
956 for (pri = NUMPRI; pri--; ) 1153 for (pri = NUMPRI; pri--; )
957 while (pendingcnt [pri]) 1154 while (pendingcnt [pri])
958 { 1155 {
959 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 1156 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
960 1157
961 if (p->w) 1158 if (expect_true (p->w))
962 { 1159 {
1160 /*assert (("non-pending watcher on pending list", p->w->pending));*/
1161
963 p->w->pending = 0; 1162 p->w->pending = 0;
964 p->w->cb (EV_A_ p->w, p->events); 1163 EV_CB_INVOKE (p->w, p->events);
965 } 1164 }
966 } 1165 }
967} 1166}
968 1167
969static void 1168void inline_size
970timers_reify (EV_P) 1169timers_reify (EV_P)
971{ 1170{
972 while (timercnt && ((WT)timers [0])->at <= mn_now) 1171 while (timercnt && ((WT)timers [0])->at <= mn_now)
973 { 1172 {
974 struct ev_timer *w = timers [0]; 1173 ev_timer *w = timers [0];
975 1174
976 assert (("inactive timer on timer heap detected", ev_is_active (w))); 1175 /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/
977 1176
978 /* first reschedule or stop timer */ 1177 /* first reschedule or stop timer */
979 if (w->repeat) 1178 if (w->repeat)
980 { 1179 {
981 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 1180 assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
1181
982 ((WT)w)->at = mn_now + w->repeat; 1182 ((WT)w)->at += w->repeat;
1183 if (((WT)w)->at < mn_now)
1184 ((WT)w)->at = mn_now;
1185
983 downheap ((WT *)timers, timercnt, 0); 1186 downheap ((WT *)timers, timercnt, 0);
984 } 1187 }
985 else 1188 else
986 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ 1189 ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
987 1190
988 event (EV_A_ (W)w, EV_TIMEOUT); 1191 ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
989 } 1192 }
990} 1193}
991 1194
992static void 1195#if EV_PERIODIC_ENABLE
1196void inline_size
993periodics_reify (EV_P) 1197periodics_reify (EV_P)
994{ 1198{
995 while (periodiccnt && ((WT)periodics [0])->at <= rt_now) 1199 while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
996 { 1200 {
997 struct ev_periodic *w = periodics [0]; 1201 ev_periodic *w = periodics [0];
998 1202
999 assert (("inactive timer on periodic heap detected", ev_is_active (w))); 1203 /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/
1000 1204
1001 /* first reschedule or stop timer */ 1205 /* first reschedule or stop timer */
1002 if (w->interval) 1206 if (w->reschedule_cb)
1003 { 1207 {
1208 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1209 assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1210 downheap ((WT *)periodics, periodiccnt, 0);
1211 }
1212 else if (w->interval)
1213 {
1004 ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; 1214 ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
1005 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); 1215 assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1006 downheap ((WT *)periodics, periodiccnt, 0); 1216 downheap ((WT *)periodics, periodiccnt, 0);
1007 } 1217 }
1008 else 1218 else
1009 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 1219 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1010 1220
1011 event (EV_A_ (W)w, EV_PERIODIC); 1221 ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
1012 } 1222 }
1013} 1223}
1014 1224
1015static void 1225static void noinline
1016periodics_reschedule (EV_P) 1226periodics_reschedule (EV_P)
1017{ 1227{
1018 int i; 1228 int i;
1019 1229
1020 /* adjust periodics after time jump */ 1230 /* adjust periodics after time jump */
1021 for (i = 0; i < periodiccnt; ++i) 1231 for (i = 0; i < periodiccnt; ++i)
1022 { 1232 {
1023 struct ev_periodic *w = periodics [i]; 1233 ev_periodic *w = periodics [i];
1024 1234
1235 if (w->reschedule_cb)
1236 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1025 if (w->interval) 1237 else if (w->interval)
1026 {
1027 ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1238 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1028
1029 if (fabs (diff) >= 1e-4)
1030 {
1031 ev_periodic_stop (EV_A_ w);
1032 ev_periodic_start (EV_A_ w);
1033
1034 i = 0; /* restart loop, inefficient, but time jumps should be rare */
1035 }
1036 }
1037 } 1239 }
1038}
1039 1240
1040inline int 1241 /* now rebuild the heap */
1242 for (i = periodiccnt >> 1; i--; )
1243 downheap ((WT *)periodics, periodiccnt, i);
1244}
1245#endif
1246
1247int inline_size
1041time_update_monotonic (EV_P) 1248time_update_monotonic (EV_P)
1042{ 1249{
1043 mn_now = get_clock (); 1250 mn_now = get_clock ();
1044 1251
1045 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 1252 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1046 { 1253 {
1047 rt_now = rtmn_diff + mn_now; 1254 ev_rt_now = rtmn_diff + mn_now;
1048 return 0; 1255 return 0;
1049 } 1256 }
1050 else 1257 else
1051 { 1258 {
1052 now_floor = mn_now; 1259 now_floor = mn_now;
1053 rt_now = ev_time (); 1260 ev_rt_now = ev_time ();
1054 return 1; 1261 return 1;
1055 } 1262 }
1056} 1263}
1057 1264
1058static void 1265void inline_size
1059time_update (EV_P) 1266time_update (EV_P)
1060{ 1267{
1061 int i; 1268 int i;
1062 1269
1063#if EV_USE_MONOTONIC 1270#if EV_USE_MONOTONIC
… …
1065 { 1272 {
1066 if (time_update_monotonic (EV_A)) 1273 if (time_update_monotonic (EV_A))
1067 { 1274 {
1068 ev_tstamp odiff = rtmn_diff; 1275 ev_tstamp odiff = rtmn_diff;
1069 1276
1070 for (i = 4; --i; ) /* loop a few times, before making important decisions */ 1277 /* loop a few times, before making important decisions.
1278 * on the choice of "4": one iteration isn't enough,
1279 * in case we get preempted during the calls to
1280 * ev_time and get_clock. a second call is almost guaranteed
1281 * to succeed in that case, though. and looping a few more times
1282 * doesn't hurt either as we only do this on time-jumps or
1283 * in the unlikely event of having been preempted here.
1284 */
1285 for (i = 4; --i; )
1071 { 1286 {
1072 rtmn_diff = rt_now - mn_now; 1287 rtmn_diff = ev_rt_now - mn_now;
1073 1288
1074 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) 1289 if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1075 return; /* all is well */ 1290 return; /* all is well */
1076 1291
1077 rt_now = ev_time (); 1292 ev_rt_now = ev_time ();
1078 mn_now = get_clock (); 1293 mn_now = get_clock ();
1079 now_floor = mn_now; 1294 now_floor = mn_now;
1080 } 1295 }
1081 1296
1297# if EV_PERIODIC_ENABLE
1082 periodics_reschedule (EV_A); 1298 periodics_reschedule (EV_A);
1299# endif
1083 /* no timer adjustment, as the monotonic clock doesn't jump */ 1300 /* no timer adjustment, as the monotonic clock doesn't jump */
1084 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ 1301 /* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1085 } 1302 }
1086 } 1303 }
1087 else 1304 else
1088#endif 1305#endif
1089 { 1306 {
1090 rt_now = ev_time (); 1307 ev_rt_now = ev_time ();
1091 1308
1092 if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) 1309 if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1093 { 1310 {
1311#if EV_PERIODIC_ENABLE
1094 periodics_reschedule (EV_A); 1312 periodics_reschedule (EV_A);
1313#endif
1095 1314
1096 /* adjust timers. this is easy, as the offset is the same for all */ 1315 /* adjust timers. this is easy, as the offset is the same for all of them */
1097 for (i = 0; i < timercnt; ++i) 1316 for (i = 0; i < timercnt; ++i)
1098 ((WT)timers [i])->at += rt_now - mn_now; 1317 ((WT)timers [i])->at += ev_rt_now - mn_now;
1099 } 1318 }
1100 1319
1101 mn_now = rt_now; 1320 mn_now = ev_rt_now;
1102 } 1321 }
1103} 1322}
1104 1323
1105void 1324void
1106ev_ref (EV_P) 1325ev_ref (EV_P)
… …
1117static int loop_done; 1336static int loop_done;
1118 1337
1119void 1338void
1120ev_loop (EV_P_ int flags) 1339ev_loop (EV_P_ int flags)
1121{ 1340{
1122 double block;
1123 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; 1341 loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
1342 ? EVUNLOOP_ONE
1343 : EVUNLOOP_CANCEL;
1124 1344
1125 do 1345 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */
1346
1347 while (activecnt)
1126 { 1348 {
1349#ifndef _WIN32
1350 if (expect_false (curpid)) /* penalise the forking check even more */
1351 if (expect_false (getpid () != curpid))
1352 {
1353 curpid = getpid ();
1354 postfork = 1;
1355 }
1356#endif
1357
1358#if EV_FORK_ENABLE
1359 /* we might have forked, so queue fork handlers */
1360 if (expect_false (postfork))
1361 if (forkcnt)
1362 {
1363 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
1364 call_pending (EV_A);
1365 }
1366#endif
1367
1127 /* queue check watchers (and execute them) */ 1368 /* queue check watchers (and execute them) */
1128 if (expect_false (preparecnt)) 1369 if (expect_false (preparecnt))
1129 { 1370 {
1130 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 1371 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
1131 call_pending (EV_A); 1372 call_pending (EV_A);
… …
1137 1378
1138 /* update fd-related kernel structures */ 1379 /* update fd-related kernel structures */
1139 fd_reify (EV_A); 1380 fd_reify (EV_A);
1140 1381
1141 /* calculate blocking time */ 1382 /* calculate blocking time */
1383 {
1384 ev_tstamp block;
1142 1385
1143 /* we only need this for !monotonic clockor timers, but as we basically 1386 if (flags & EVLOOP_NONBLOCK || idlecnt)
1144 always have timers, we just calculate it always */ 1387 block = 0.; /* do not block at all */
1388 else
1389 {
1390 /* update time to cancel out callback processing overhead */
1145#if EV_USE_MONOTONIC 1391#if EV_USE_MONOTONIC
1146 if (expect_true (have_monotonic)) 1392 if (expect_true (have_monotonic))
1147 time_update_monotonic (EV_A); 1393 time_update_monotonic (EV_A);
1148 else 1394 else
1149#endif 1395#endif
1150 { 1396 {
1151 rt_now = ev_time (); 1397 ev_rt_now = ev_time ();
1152 mn_now = rt_now; 1398 mn_now = ev_rt_now;
1153 } 1399 }
1154 1400
1155 if (flags & EVLOOP_NONBLOCK || idlecnt)
1156 block = 0.;
1157 else
1158 {
1159 block = MAX_BLOCKTIME; 1401 block = MAX_BLOCKTIME;
1160 1402
1161 if (timercnt) 1403 if (timercnt)
1162 { 1404 {
1163 ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; 1405 ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1164 if (block > to) block = to; 1406 if (block > to) block = to;
1165 } 1407 }
1166 1408
1409#if EV_PERIODIC_ENABLE
1167 if (periodiccnt) 1410 if (periodiccnt)
1168 { 1411 {
1169 ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; 1412 ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1170 if (block > to) block = to; 1413 if (block > to) block = to;
1171 } 1414 }
1415#endif
1172 1416
1173 if (block < 0.) block = 0.; 1417 if (expect_false (block < 0.)) block = 0.;
1174 } 1418 }
1175 1419
1176 method_poll (EV_A_ block); 1420 backend_poll (EV_A_ block);
1421 }
1177 1422
1178 /* update rt_now, do magic */ 1423 /* update ev_rt_now, do magic */
1179 time_update (EV_A); 1424 time_update (EV_A);
1180 1425
1181 /* queue pending timers and reschedule them */ 1426 /* queue pending timers and reschedule them */
1182 timers_reify (EV_A); /* relative timers called last */ 1427 timers_reify (EV_A); /* relative timers called last */
1428#if EV_PERIODIC_ENABLE
1183 periodics_reify (EV_A); /* absolute timers called first */ 1429 periodics_reify (EV_A); /* absolute timers called first */
1430#endif
1184 1431
1185 /* queue idle watchers unless io or timers are pending */ 1432 /* queue idle watchers unless other events are pending */
1186 if (!pendingcnt) 1433 if (idlecnt && !any_pending (EV_A))
1187 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); 1434 queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1188 1435
1189 /* queue check watchers, to be executed first */ 1436 /* queue check watchers, to be executed first */
1190 if (checkcnt) 1437 if (expect_false (checkcnt))
1191 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 1438 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1192 1439
1193 call_pending (EV_A); 1440 call_pending (EV_A);
1194 }
1195 while (activecnt && !loop_done);
1196 1441
1197 if (loop_done != 2) 1442 if (expect_false (loop_done))
1198 loop_done = 0; 1443 break;
1444 }
1445
1446 if (loop_done == EVUNLOOP_ONE)
1447 loop_done = EVUNLOOP_CANCEL;
1199} 1448}
1200 1449
1201void 1450void
1202ev_unloop (EV_P_ int how) 1451ev_unloop (EV_P_ int how)
1203{ 1452{
1204 loop_done = how; 1453 loop_done = how;
1205} 1454}
1206 1455
1207/*****************************************************************************/ 1456/*****************************************************************************/
1208 1457
1209inline void 1458void inline_size
1210wlist_add (WL *head, WL elem) 1459wlist_add (WL *head, WL elem)
1211{ 1460{
1212 elem->next = *head; 1461 elem->next = *head;
1213 *head = elem; 1462 *head = elem;
1214} 1463}
1215 1464
1216inline void 1465void inline_size
1217wlist_del (WL *head, WL elem) 1466wlist_del (WL *head, WL elem)
1218{ 1467{
1219 while (*head) 1468 while (*head)
1220 { 1469 {
1221 if (*head == elem) 1470 if (*head == elem)
… …
1226 1475
1227 head = &(*head)->next; 1476 head = &(*head)->next;
1228 } 1477 }
1229} 1478}
1230 1479
1231inline void 1480void inline_speed
1232ev_clear_pending (EV_P_ W w) 1481ev_clear_pending (EV_P_ W w)
1233{ 1482{
1234 if (w->pending) 1483 if (w->pending)
1235 { 1484 {
1236 pendings [ABSPRI (w)][w->pending - 1].w = 0; 1485 pendings [ABSPRI (w)][w->pending - 1].w = 0;
1237 w->pending = 0; 1486 w->pending = 0;
1238 } 1487 }
1239} 1488}
1240 1489
1241inline void 1490void inline_speed
1242ev_start (EV_P_ W w, int active) 1491ev_start (EV_P_ W w, int active)
1243{ 1492{
1244 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; 1493 if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
1245 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; 1494 if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
1246 1495
1247 w->active = active; 1496 w->active = active;
1248 ev_ref (EV_A); 1497 ev_ref (EV_A);
1249} 1498}
1250 1499
1251inline void 1500void inline_size
1252ev_stop (EV_P_ W w) 1501ev_stop (EV_P_ W w)
1253{ 1502{
1254 ev_unref (EV_A); 1503 ev_unref (EV_A);
1255 w->active = 0; 1504 w->active = 0;
1256} 1505}
1257 1506
1258/*****************************************************************************/ 1507/*****************************************************************************/
1259 1508
1260void 1509void
1261ev_io_start (EV_P_ struct ev_io *w) 1510ev_io_start (EV_P_ ev_io *w)
1262{ 1511{
1263 int fd = w->fd; 1512 int fd = w->fd;
1264 1513
1265 if (ev_is_active (w)) 1514 if (expect_false (ev_is_active (w)))
1266 return; 1515 return;
1267 1516
1268 assert (("ev_io_start called with negative fd", fd >= 0)); 1517 assert (("ev_io_start called with negative fd", fd >= 0));
1269 1518
1270 ev_start (EV_A_ (W)w, 1); 1519 ev_start (EV_A_ (W)w, 1);
1271 array_needsize (anfds, anfdmax, fd + 1, anfds_init); 1520 array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1272 wlist_add ((WL *)&anfds[fd].head, (WL)w); 1521 wlist_add ((WL *)&anfds[fd].head, (WL)w);
1273 1522
1274 fd_change (EV_A_ fd); 1523 fd_change (EV_A_ fd);
1275} 1524}
1276 1525
1277void 1526void
1278ev_io_stop (EV_P_ struct ev_io *w) 1527ev_io_stop (EV_P_ ev_io *w)
1279{ 1528{
1280 ev_clear_pending (EV_A_ (W)w); 1529 ev_clear_pending (EV_A_ (W)w);
1281 if (!ev_is_active (w)) 1530 if (expect_false (!ev_is_active (w)))
1282 return; 1531 return;
1532
1533 assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1283 1534
1284 wlist_del ((WL *)&anfds[w->fd].head, (WL)w); 1535 wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1285 ev_stop (EV_A_ (W)w); 1536 ev_stop (EV_A_ (W)w);
1286 1537
1287 fd_change (EV_A_ w->fd); 1538 fd_change (EV_A_ w->fd);
1288} 1539}
1289 1540
1290void 1541void
1291ev_timer_start (EV_P_ struct ev_timer *w) 1542ev_timer_start (EV_P_ ev_timer *w)
1292{ 1543{
1293 if (ev_is_active (w)) 1544 if (expect_false (ev_is_active (w)))
1294 return; 1545 return;
1295 1546
1296 ((WT)w)->at += mn_now; 1547 ((WT)w)->at += mn_now;
1297 1548
1298 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 1549 assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1299 1550
1300 ev_start (EV_A_ (W)w, ++timercnt); 1551 ev_start (EV_A_ (W)w, ++timercnt);
1301 array_needsize (timers, timermax, timercnt, (void)); 1552 array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1302 timers [timercnt - 1] = w; 1553 timers [timercnt - 1] = w;
1303 upheap ((WT *)timers, timercnt - 1); 1554 upheap ((WT *)timers, timercnt - 1);
1304 1555
1556 /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/
1557}
1558
1559void
1560ev_timer_stop (EV_P_ ev_timer *w)
1561{
1562 ev_clear_pending (EV_A_ (W)w);
1563 if (expect_false (!ev_is_active (w)))
1564 return;
1565
1305 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1566 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1306}
1307 1567
1308void 1568 {
1309ev_timer_stop (EV_P_ struct ev_timer *w) 1569 int active = ((W)w)->active;
1310{
1311 ev_clear_pending (EV_A_ (W)w);
1312 if (!ev_is_active (w))
1313 return;
1314 1570
1315 assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); 1571 if (expect_true (--active < --timercnt))
1316
1317 if (((W)w)->active < timercnt--)
1318 { 1572 {
1319 timers [((W)w)->active - 1] = timers [timercnt]; 1573 timers [active] = timers [timercnt];
1320 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1574 adjustheap ((WT *)timers, timercnt, active);
1321 } 1575 }
1576 }
1322 1577
1323 ((WT)w)->at = w->repeat; 1578 ((WT)w)->at -= mn_now;
1324 1579
1325 ev_stop (EV_A_ (W)w); 1580 ev_stop (EV_A_ (W)w);
1326} 1581}
1327 1582
1328void 1583void
1329ev_timer_again (EV_P_ struct ev_timer *w) 1584ev_timer_again (EV_P_ ev_timer *w)
1330{ 1585{
1331 if (ev_is_active (w)) 1586 if (ev_is_active (w))
1332 { 1587 {
1333 if (w->repeat) 1588 if (w->repeat)
1334 { 1589 {
1335 ((WT)w)->at = mn_now + w->repeat; 1590 ((WT)w)->at = mn_now + w->repeat;
1336 downheap ((WT *)timers, timercnt, ((W)w)->active - 1); 1591 adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1337 } 1592 }
1338 else 1593 else
1339 ev_timer_stop (EV_A_ w); 1594 ev_timer_stop (EV_A_ w);
1340 } 1595 }
1341 else if (w->repeat) 1596 else if (w->repeat)
1597 {
1598 w->at = w->repeat;
1342 ev_timer_start (EV_A_ w); 1599 ev_timer_start (EV_A_ w);
1600 }
1343} 1601}
1344 1602
1603#if EV_PERIODIC_ENABLE
1345void 1604void
1346ev_periodic_start (EV_P_ struct ev_periodic *w) 1605ev_periodic_start (EV_P_ ev_periodic *w)
1347{ 1606{
1348 if (ev_is_active (w)) 1607 if (expect_false (ev_is_active (w)))
1349 return; 1608 return;
1350 1609
1610 if (w->reschedule_cb)
1611 ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1612 else if (w->interval)
1613 {
1351 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); 1614 assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1352
1353 /* this formula differs from the one in periodic_reify because we do not always round up */ 1615 /* this formula differs from the one in periodic_reify because we do not always round up */
1354 if (w->interval)
1355 ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; 1616 ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1617 }
1356 1618
1357 ev_start (EV_A_ (W)w, ++periodiccnt); 1619 ev_start (EV_A_ (W)w, ++periodiccnt);
1358 array_needsize (periodics, periodicmax, periodiccnt, (void)); 1620 array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1359 periodics [periodiccnt - 1] = w; 1621 periodics [periodiccnt - 1] = w;
1360 upheap ((WT *)periodics, periodiccnt - 1); 1622 upheap ((WT *)periodics, periodiccnt - 1);
1361 1623
1624 /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/
1625}
1626
1627void
1628ev_periodic_stop (EV_P_ ev_periodic *w)
1629{
1630 ev_clear_pending (EV_A_ (W)w);
1631 if (expect_false (!ev_is_active (w)))
1632 return;
1633
1362 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1634 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1363}
1364 1635
1365void 1636 {
1366ev_periodic_stop (EV_P_ struct ev_periodic *w) 1637 int active = ((W)w)->active;
1367{
1368 ev_clear_pending (EV_A_ (W)w);
1369 if (!ev_is_active (w))
1370 return;
1371 1638
1372 assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); 1639 if (expect_true (--active < --periodiccnt))
1373
1374 if (((W)w)->active < periodiccnt--)
1375 { 1640 {
1376 periodics [((W)w)->active - 1] = periodics [periodiccnt]; 1641 periodics [active] = periodics [periodiccnt];
1377 downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); 1642 adjustheap ((WT *)periodics, periodiccnt, active);
1378 } 1643 }
1644 }
1379 1645
1380 ev_stop (EV_A_ (W)w); 1646 ev_stop (EV_A_ (W)w);
1381} 1647}
1382 1648
1383void 1649void
1384ev_idle_start (EV_P_ struct ev_idle *w) 1650ev_periodic_again (EV_P_ ev_periodic *w)
1385{ 1651{
1386 if (ev_is_active (w)) 1652 /* TODO: use adjustheap and recalculation */
1387 return;
1388
1389 ev_start (EV_A_ (W)w, ++idlecnt);
1390 array_needsize (idles, idlemax, idlecnt, (void));
1391 idles [idlecnt - 1] = w;
1392}
1393
1394void
1395ev_idle_stop (EV_P_ struct ev_idle *w)
1396{
1397 ev_clear_pending (EV_A_ (W)w);
1398 if (ev_is_active (w))
1399 return;
1400
1401 idles [((W)w)->active - 1] = idles [--idlecnt];
1402 ev_stop (EV_A_ (W)w); 1653 ev_periodic_stop (EV_A_ w);
1654 ev_periodic_start (EV_A_ w);
1403} 1655}
1404 1656#endif
1405void
1406ev_prepare_start (EV_P_ struct ev_prepare *w)
1407{
1408 if (ev_is_active (w))
1409 return;
1410
1411 ev_start (EV_A_ (W)w, ++preparecnt);
1412 array_needsize (prepares, preparemax, preparecnt, (void));
1413 prepares [preparecnt - 1] = w;
1414}
1415
1416void
1417ev_prepare_stop (EV_P_ struct ev_prepare *w)
1418{
1419 ev_clear_pending (EV_A_ (W)w);
1420 if (ev_is_active (w))
1421 return;
1422
1423 prepares [((W)w)->active - 1] = prepares [--preparecnt];
1424 ev_stop (EV_A_ (W)w);
1425}
1426
1427void
1428ev_check_start (EV_P_ struct ev_check *w)
1429{
1430 if (ev_is_active (w))
1431 return;
1432
1433 ev_start (EV_A_ (W)w, ++checkcnt);
1434 array_needsize (checks, checkmax, checkcnt, (void));
1435 checks [checkcnt - 1] = w;
1436}
1437
1438void
1439ev_check_stop (EV_P_ struct ev_check *w)
1440{
1441 ev_clear_pending (EV_A_ (W)w);
1442 if (ev_is_active (w))
1443 return;
1444
1445 checks [((W)w)->active - 1] = checks [--checkcnt];
1446 ev_stop (EV_A_ (W)w);
1447}
1448 1657
1449#ifndef SA_RESTART 1658#ifndef SA_RESTART
1450# define SA_RESTART 0 1659# define SA_RESTART 0
1451#endif 1660#endif
1452 1661
1453void 1662void
1454ev_signal_start (EV_P_ struct ev_signal *w) 1663ev_signal_start (EV_P_ ev_signal *w)
1455{ 1664{
1456#if EV_MULTIPLICITY 1665#if EV_MULTIPLICITY
1457 assert (("signal watchers are only supported in the default loop", loop == default_loop)); 1666 assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1458#endif 1667#endif
1459 if (ev_is_active (w)) 1668 if (expect_false (ev_is_active (w)))
1460 return; 1669 return;
1461 1670
1462 assert (("ev_signal_start called with illegal signal number", w->signum > 0)); 1671 assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1463 1672
1464 ev_start (EV_A_ (W)w, 1); 1673 ev_start (EV_A_ (W)w, 1);
1465 array_needsize (signals, signalmax, w->signum, signals_init); 1674 array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1466 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); 1675 wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1467 1676
1468 if (!((WL)w)->next) 1677 if (!((WL)w)->next)
1469 { 1678 {
1470#if WIN32 1679#if _WIN32
1471 signal (w->signum, sighandler); 1680 signal (w->signum, sighandler);
1472#else 1681#else
1473 struct sigaction sa; 1682 struct sigaction sa;
1474 sa.sa_handler = sighandler; 1683 sa.sa_handler = sighandler;
1475 sigfillset (&sa.sa_mask); 1684 sigfillset (&sa.sa_mask);
… …
1478#endif 1687#endif
1479 } 1688 }
1480} 1689}
1481 1690
1482void 1691void
1483ev_signal_stop (EV_P_ struct ev_signal *w) 1692ev_signal_stop (EV_P_ ev_signal *w)
1484{ 1693{
1485 ev_clear_pending (EV_A_ (W)w); 1694 ev_clear_pending (EV_A_ (W)w);
1486 if (!ev_is_active (w)) 1695 if (expect_false (!ev_is_active (w)))
1487 return; 1696 return;
1488 1697
1489 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); 1698 wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1490 ev_stop (EV_A_ (W)w); 1699 ev_stop (EV_A_ (W)w);
1491 1700
1492 if (!signals [w->signum - 1].head) 1701 if (!signals [w->signum - 1].head)
1493 signal (w->signum, SIG_DFL); 1702 signal (w->signum, SIG_DFL);
1494} 1703}
1495 1704
1496void 1705void
1497ev_child_start (EV_P_ struct ev_child *w) 1706ev_child_start (EV_P_ ev_child *w)
1498{ 1707{
1499#if EV_MULTIPLICITY 1708#if EV_MULTIPLICITY
1500 assert (("child watchers are only supported in the default loop", loop == default_loop)); 1709 assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1501#endif 1710#endif
1502 if (ev_is_active (w)) 1711 if (expect_false (ev_is_active (w)))
1503 return; 1712 return;
1504 1713
1505 ev_start (EV_A_ (W)w, 1); 1714 ev_start (EV_A_ (W)w, 1);
1506 wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1715 wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1507} 1716}
1508 1717
1509void 1718void
1510ev_child_stop (EV_P_ struct ev_child *w) 1719ev_child_stop (EV_P_ ev_child *w)
1511{ 1720{
1512 ev_clear_pending (EV_A_ (W)w); 1721 ev_clear_pending (EV_A_ (W)w);
1513 if (ev_is_active (w)) 1722 if (expect_false (!ev_is_active (w)))
1514 return; 1723 return;
1515 1724
1516 wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); 1725 wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w);
1517 ev_stop (EV_A_ (W)w); 1726 ev_stop (EV_A_ (W)w);
1518} 1727}
1519 1728
1729#if EV_STAT_ENABLE
1730
1731# ifdef _WIN32
1732# undef lstat
1733# define lstat(a,b) _stati64 (a,b)
1734# endif
1735
1736#define DEF_STAT_INTERVAL 5.0074891
1737#define MIN_STAT_INTERVAL 0.1074891
1738
1739static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
1740
1741#if EV_USE_INOTIFY
1742# define EV_INOTIFY_BUFSIZE 8192
1743
1744static void noinline
1745infy_add (EV_P_ ev_stat *w)
1746{
1747 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);
1748
1749 if (w->wd < 0)
1750 {
1751 ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
1752
1753 /* monitor some parent directory for speedup hints */
1754 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
1755 {
1756 char path [4096];
1757 strcpy (path, w->path);
1758
1759 do
1760 {
1761 int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF
1762 | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO);
1763
1764 char *pend = strrchr (path, '/');
1765
1766 if (!pend)
1767 break; /* whoops, no '/', complain to your admin */
1768
1769 *pend = 0;
1770 w->wd = inotify_add_watch (fs_fd, path, mask);
1771 }
1772 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
1773 }
1774 }
1775 else
1776 ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */
1777
1778 if (w->wd >= 0)
1779 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w);
1780}
1781
1782static void noinline
1783infy_del (EV_P_ ev_stat *w)
1784{
1785 int slot;
1786 int wd = w->wd;
1787
1788 if (wd < 0)
1789 return;
1790
1791 w->wd = -2;
1792 slot = wd & (EV_INOTIFY_HASHSIZE - 1);
1793 wlist_del (&fs_hash [slot].head, (WL)w);
1794
1795 /* remove this watcher, if others are watching it, they will rearm */
1796 inotify_rm_watch (fs_fd, wd);
1797}
1798
1799static void noinline
1800infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
1801{
1802 if (slot < 0)
1803 /* overflow, need to check for all hahs slots */
1804 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1805 infy_wd (EV_A_ slot, wd, ev);
1806 else
1807 {
1808 WL w_;
1809
1810 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; )
1811 {
1812 ev_stat *w = (ev_stat *)w_;
1813 w_ = w_->next; /* lets us remove this watcher and all before it */
1814
1815 if (w->wd == wd || wd == -1)
1816 {
1817 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
1818 {
1819 w->wd = -1;
1820 infy_add (EV_A_ w); /* re-add, no matter what */
1821 }
1822
1823 stat_timer_cb (EV_A_ &w->timer, 0);
1824 }
1825 }
1826 }
1827}
1828
1829static void
1830infy_cb (EV_P_ ev_io *w, int revents)
1831{
1832 char buf [EV_INOTIFY_BUFSIZE];
1833 struct inotify_event *ev = (struct inotify_event *)buf;
1834 int ofs;
1835 int len = read (fs_fd, buf, sizeof (buf));
1836
1837 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len)
1838 infy_wd (EV_A_ ev->wd, ev->wd, ev);
1839}
1840
1841void inline_size
1842infy_init (EV_P)
1843{
1844 if (fs_fd != -2)
1845 return;
1846
1847 fs_fd = inotify_init ();
1848
1849 if (fs_fd >= 0)
1850 {
1851 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
1852 ev_set_priority (&fs_w, EV_MAXPRI);
1853 ev_io_start (EV_A_ &fs_w);
1854 }
1855}
1856
1857void inline_size
1858infy_fork (EV_P)
1859{
1860 int slot;
1861
1862 if (fs_fd < 0)
1863 return;
1864
1865 close (fs_fd);
1866 fs_fd = inotify_init ();
1867
1868 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
1869 {
1870 WL w_ = fs_hash [slot].head;
1871 fs_hash [slot].head = 0;
1872
1873 while (w_)
1874 {
1875 ev_stat *w = (ev_stat *)w_;
1876 w_ = w_->next; /* lets us add this watcher */
1877
1878 w->wd = -1;
1879
1880 if (fs_fd >= 0)
1881 infy_add (EV_A_ w); /* re-add, no matter what */
1882 else
1883 ev_timer_start (EV_A_ &w->timer);
1884 }
1885
1886 }
1887}
1888
1889#endif
1890
1891void
1892ev_stat_stat (EV_P_ ev_stat *w)
1893{
1894 if (lstat (w->path, &w->attr) < 0)
1895 w->attr.st_nlink = 0;
1896 else if (!w->attr.st_nlink)
1897 w->attr.st_nlink = 1;
1898}
1899
1900static void noinline
1901stat_timer_cb (EV_P_ ev_timer *w_, int revents)
1902{
1903 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
1904
1905 /* we copy this here each the time so that */
1906 /* prev has the old value when the callback gets invoked */
1907 w->prev = w->attr;
1908 ev_stat_stat (EV_A_ w);
1909
1910 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
1911 if (
1912 w->prev.st_dev != w->attr.st_dev
1913 || w->prev.st_ino != w->attr.st_ino
1914 || w->prev.st_mode != w->attr.st_mode
1915 || w->prev.st_nlink != w->attr.st_nlink
1916 || w->prev.st_uid != w->attr.st_uid
1917 || w->prev.st_gid != w->attr.st_gid
1918 || w->prev.st_rdev != w->attr.st_rdev
1919 || w->prev.st_size != w->attr.st_size
1920 || w->prev.st_atime != w->attr.st_atime
1921 || w->prev.st_mtime != w->attr.st_mtime
1922 || w->prev.st_ctime != w->attr.st_ctime
1923 ) {
1924 #if EV_USE_INOTIFY
1925 infy_del (EV_A_ w);
1926 infy_add (EV_A_ w);
1927 ev_stat_stat (EV_A_ w); /* avoid race... */
1928 #endif
1929
1930 ev_feed_event (EV_A_ w, EV_STAT);
1931 }
1932}
1933
1934void
1935ev_stat_start (EV_P_ ev_stat *w)
1936{
1937 if (expect_false (ev_is_active (w)))
1938 return;
1939
1940 /* since we use memcmp, we need to clear any padding data etc. */
1941 memset (&w->prev, 0, sizeof (ev_statdata));
1942 memset (&w->attr, 0, sizeof (ev_statdata));
1943
1944 ev_stat_stat (EV_A_ w);
1945
1946 if (w->interval < MIN_STAT_INTERVAL)
1947 w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL;
1948
1949 ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
1950 ev_set_priority (&w->timer, ev_priority (w));
1951
1952#if EV_USE_INOTIFY
1953 infy_init (EV_A);
1954
1955 if (fs_fd >= 0)
1956 infy_add (EV_A_ w);
1957 else
1958#endif
1959 ev_timer_start (EV_A_ &w->timer);
1960
1961 ev_start (EV_A_ (W)w, 1);
1962}
1963
1964void
1965ev_stat_stop (EV_P_ ev_stat *w)
1966{
1967 ev_clear_pending (EV_A_ (W)w);
1968 if (expect_false (!ev_is_active (w)))
1969 return;
1970
1971#if EV_USE_INOTIFY
1972 infy_del (EV_A_ w);
1973#endif
1974 ev_timer_stop (EV_A_ &w->timer);
1975
1976 ev_stop (EV_A_ (W)w);
1977}
1978#endif
1979
1980void
1981ev_idle_start (EV_P_ ev_idle *w)
1982{
1983 if (expect_false (ev_is_active (w)))
1984 return;
1985
1986 ev_start (EV_A_ (W)w, ++idlecnt);
1987 array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1988 idles [idlecnt - 1] = w;
1989}
1990
1991void
1992ev_idle_stop (EV_P_ ev_idle *w)
1993{
1994 ev_clear_pending (EV_A_ (W)w);
1995 if (expect_false (!ev_is_active (w)))
1996 return;
1997
1998 {
1999 int active = ((W)w)->active;
2000 idles [active - 1] = idles [--idlecnt];
2001 ((W)idles [active - 1])->active = active;
2002 }
2003
2004 ev_stop (EV_A_ (W)w);
2005}
2006
2007void
2008ev_prepare_start (EV_P_ ev_prepare *w)
2009{
2010 if (expect_false (ev_is_active (w)))
2011 return;
2012
2013 ev_start (EV_A_ (W)w, ++preparecnt);
2014 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
2015 prepares [preparecnt - 1] = w;
2016}
2017
2018void
2019ev_prepare_stop (EV_P_ ev_prepare *w)
2020{
2021 ev_clear_pending (EV_A_ (W)w);
2022 if (expect_false (!ev_is_active (w)))
2023 return;
2024
2025 {
2026 int active = ((W)w)->active;
2027 prepares [active - 1] = prepares [--preparecnt];
2028 ((W)prepares [active - 1])->active = active;
2029 }
2030
2031 ev_stop (EV_A_ (W)w);
2032}
2033
2034void
2035ev_check_start (EV_P_ ev_check *w)
2036{
2037 if (expect_false (ev_is_active (w)))
2038 return;
2039
2040 ev_start (EV_A_ (W)w, ++checkcnt);
2041 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
2042 checks [checkcnt - 1] = w;
2043}
2044
2045void
2046ev_check_stop (EV_P_ ev_check *w)
2047{
2048 ev_clear_pending (EV_A_ (W)w);
2049 if (expect_false (!ev_is_active (w)))
2050 return;
2051
2052 {
2053 int active = ((W)w)->active;
2054 checks [active - 1] = checks [--checkcnt];
2055 ((W)checks [active - 1])->active = active;
2056 }
2057
2058 ev_stop (EV_A_ (W)w);
2059}
2060
2061#if EV_EMBED_ENABLE
2062void noinline
2063ev_embed_sweep (EV_P_ ev_embed *w)
2064{
2065 ev_loop (w->loop, EVLOOP_NONBLOCK);
2066}
2067
2068static void
2069embed_cb (EV_P_ ev_io *io, int revents)
2070{
2071 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
2072
2073 if (ev_cb (w))
2074 ev_feed_event (EV_A_ (W)w, EV_EMBED);
2075 else
2076 ev_embed_sweep (loop, w);
2077}
2078
2079void
2080ev_embed_start (EV_P_ ev_embed *w)
2081{
2082 if (expect_false (ev_is_active (w)))
2083 return;
2084
2085 {
2086 struct ev_loop *loop = w->loop;
2087 assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
2088 ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
2089 }
2090
2091 ev_set_priority (&w->io, ev_priority (w));
2092 ev_io_start (EV_A_ &w->io);
2093
2094 ev_start (EV_A_ (W)w, 1);
2095}
2096
2097void
2098ev_embed_stop (EV_P_ ev_embed *w)
2099{
2100 ev_clear_pending (EV_A_ (W)w);
2101 if (expect_false (!ev_is_active (w)))
2102 return;
2103
2104 ev_io_stop (EV_A_ &w->io);
2105
2106 ev_stop (EV_A_ (W)w);
2107}
2108#endif
2109
2110#if EV_FORK_ENABLE
2111void
2112ev_fork_start (EV_P_ ev_fork *w)
2113{
2114 if (expect_false (ev_is_active (w)))
2115 return;
2116
2117 ev_start (EV_A_ (W)w, ++forkcnt);
2118 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2);
2119 forks [forkcnt - 1] = w;
2120}
2121
2122void
2123ev_fork_stop (EV_P_ ev_fork *w)
2124{
2125 ev_clear_pending (EV_A_ (W)w);
2126 if (expect_false (!ev_is_active (w)))
2127 return;
2128
2129 {
2130 int active = ((W)w)->active;
2131 forks [active - 1] = forks [--forkcnt];
2132 ((W)forks [active - 1])->active = active;
2133 }
2134
2135 ev_stop (EV_A_ (W)w);
2136}
2137#endif
2138
1520/*****************************************************************************/ 2139/*****************************************************************************/
1521 2140
1522struct ev_once 2141struct ev_once
1523{ 2142{
1524 struct ev_io io; 2143 ev_io io;
1525 struct ev_timer to; 2144 ev_timer to;
1526 void (*cb)(int revents, void *arg); 2145 void (*cb)(int revents, void *arg);
1527 void *arg; 2146 void *arg;
1528}; 2147};
1529 2148
1530static void 2149static void
… …
1539 2158
1540 cb (revents, arg); 2159 cb (revents, arg);
1541} 2160}
1542 2161
1543static void 2162static void
1544once_cb_io (EV_P_ struct ev_io *w, int revents) 2163once_cb_io (EV_P_ ev_io *w, int revents)
1545{ 2164{
1546 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); 2165 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1547} 2166}
1548 2167
1549static void 2168static void
1550once_cb_to (EV_P_ struct ev_timer *w, int revents) 2169once_cb_to (EV_P_ ev_timer *w, int revents)
1551{ 2170{
1552 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); 2171 once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1553} 2172}
1554 2173
1555void 2174void
1556ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 2175ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1557{ 2176{
1558 struct ev_once *once = ev_malloc (sizeof (struct ev_once)); 2177 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1559 2178
1560 if (!once) 2179 if (expect_false (!once))
2180 {
1561 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 2181 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1562 else 2182 return;
1563 { 2183 }
2184
1564 once->cb = cb; 2185 once->cb = cb;
1565 once->arg = arg; 2186 once->arg = arg;
1566 2187
1567 ev_watcher_init (&once->io, once_cb_io); 2188 ev_init (&once->io, once_cb_io);
1568 if (fd >= 0) 2189 if (fd >= 0)
1569 { 2190 {
1570 ev_io_set (&once->io, fd, events); 2191 ev_io_set (&once->io, fd, events);
1571 ev_io_start (EV_A_ &once->io); 2192 ev_io_start (EV_A_ &once->io);
1572 } 2193 }
1573 2194
1574 ev_watcher_init (&once->to, once_cb_to); 2195 ev_init (&once->to, once_cb_to);
1575 if (timeout >= 0.) 2196 if (timeout >= 0.)
1576 { 2197 {
1577 ev_timer_set (&once->to, timeout, 0.); 2198 ev_timer_set (&once->to, timeout, 0.);
1578 ev_timer_start (EV_A_ &once->to); 2199 ev_timer_start (EV_A_ &once->to);
1579 }
1580 } 2200 }
1581} 2201}
1582 2202
2203#ifdef __cplusplus
2204}
2205#endif
2206

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