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Comparing libev/ev.c (file contents):
Revision 1.328 by root, Sun Feb 14 19:23:19 2010 UTC vs.
Revision 1.363 by root, Sun Oct 24 19:38:20 2010 UTC

35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
77# ifndef EV_USE_REALTIME 73# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 74# define EV_USE_REALTIME 0
79# endif 75# endif
80# endif 76# endif
81 77
78# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 79# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 80# define EV_USE_NANOSLEEP EV_FEATURE_OS
81# endif
85# else 82# else
83# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 84# define EV_USE_NANOSLEEP 0
85# endif
86
87# if HAVE_SELECT && HAVE_SYS_SELECT_H
88# ifndef EV_USE_SELECT
89# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 90# endif
91# else
92# undef EV_USE_SELECT
93# define EV_USE_SELECT 0
88# endif 94# endif
89 95
96# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 97# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 98# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 99# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 100# else
101# undef EV_USE_POLL
102# define EV_USE_POLL 0 102# define EV_USE_POLL 0
103# endif
104# endif 103# endif
105 104
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 105# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 106# ifndef EV_USE_EPOLL
109# else 107# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 108# endif
109# else
110# undef EV_USE_EPOLL
111# define EV_USE_EPOLL 0
112# endif 112# endif
113 113
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 114# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 115# ifndef EV_USE_KQUEUE
117# else 116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 117# endif
118# else
119# undef EV_USE_KQUEUE
120# define EV_USE_KQUEUE 0
120# endif 121# endif
121 122
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 123# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 124# ifndef EV_USE_PORT
125# else 125# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 126# endif
127# else
128# undef EV_USE_PORT
129# define EV_USE_PORT 0
128# endif 130# endif
129 131
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 132# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 133# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 134# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 135# endif
136# else
137# undef EV_USE_INOTIFY
138# define EV_USE_INOTIFY 0
136# endif 139# endif
137 140
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 141# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 142# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 143# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 144# endif
145# else
146# undef EV_USE_SIGNALFD
147# define EV_USE_SIGNALFD 0
144# endif 148# endif
145 149
150# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 151# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 152# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 153# endif
154# else
155# undef EV_USE_EVENTFD
156# define EV_USE_EVENTFD 0
152# endif 157# endif
153 158
154#endif 159#endif
155 160
156#include <math.h> 161#include <math.h>
172#ifdef EV_H 177#ifdef EV_H
173# include EV_H 178# include EV_H
174#else 179#else
175# include "ev.h" 180# include "ev.h"
176#endif 181#endif
182
183EV_CPP(extern "C" {)
177 184
178#ifndef _WIN32 185#ifndef _WIN32
179# include <sys/time.h> 186# include <sys/time.h>
180# include <sys/wait.h> 187# include <sys/wait.h>
181# include <unistd.h> 188# include <unistd.h>
184# define WIN32_LEAN_AND_MEAN 191# define WIN32_LEAN_AND_MEAN
185# include <windows.h> 192# include <windows.h>
186# ifndef EV_SELECT_IS_WINSOCKET 193# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 194# define EV_SELECT_IS_WINSOCKET 1
188# endif 195# endif
196# undef EV_AVOID_STDIO
189#endif 197#endif
198
199/* OS X, in its infinite idiocy, actually HARDCODES
200 * a limit of 1024 into their select. Where people have brains,
201 * OS X engineers apparently have a vacuum. Or maybe they were
202 * ordered to have a vacuum, or they do anything for money.
203 * This might help. Or not.
204 */
205#define _DARWIN_UNLIMITED_SELECT 1
190 206
191/* this block tries to deduce configuration from header-defined symbols and defaults */ 207/* this block tries to deduce configuration from header-defined symbols and defaults */
192 208
193/* try to deduce the maximum number of signals on this platform */ 209/* try to deduce the maximum number of signals on this platform */
194#if defined (EV_NSIG) 210#if defined (EV_NSIG)
206#elif defined (MAXSIG) 222#elif defined (MAXSIG)
207# define EV_NSIG (MAXSIG+1) 223# define EV_NSIG (MAXSIG+1)
208#elif defined (MAX_SIG) 224#elif defined (MAX_SIG)
209# define EV_NSIG (MAX_SIG+1) 225# define EV_NSIG (MAX_SIG+1)
210#elif defined (SIGARRAYSIZE) 226#elif defined (SIGARRAYSIZE)
211# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
212#elif defined (_sys_nsig) 228#elif defined (_sys_nsig)
213# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
214#else 230#else
215# error "unable to find value for NSIG, please report" 231# error "unable to find value for NSIG, please report"
216/* to make it compile regardless, just remove the above line */ 232/* to make it compile regardless, just remove the above line, */
233/* but consider reporting it, too! :) */
217# define EV_NSIG 65 234# define EV_NSIG 65
218#endif 235#endif
219 236
220#ifndef EV_USE_CLOCK_SYSCALL 237#ifndef EV_USE_CLOCK_SYSCALL
221# if __linux && __GLIBC__ >= 2 238# if __linux && __GLIBC__ >= 2
222# define EV_USE_CLOCK_SYSCALL 1 239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
223# else 240# else
224# define EV_USE_CLOCK_SYSCALL 0 241# define EV_USE_CLOCK_SYSCALL 0
225# endif 242# endif
226#endif 243#endif
227 244
228#ifndef EV_USE_MONOTONIC 245#ifndef EV_USE_MONOTONIC
229# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
230# define EV_USE_MONOTONIC 1 247# define EV_USE_MONOTONIC EV_FEATURE_OS
231# else 248# else
232# define EV_USE_MONOTONIC 0 249# define EV_USE_MONOTONIC 0
233# endif 250# endif
234#endif 251#endif
235 252
237# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 254# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
238#endif 255#endif
239 256
240#ifndef EV_USE_NANOSLEEP 257#ifndef EV_USE_NANOSLEEP
241# if _POSIX_C_SOURCE >= 199309L 258# if _POSIX_C_SOURCE >= 199309L
242# define EV_USE_NANOSLEEP 1 259# define EV_USE_NANOSLEEP EV_FEATURE_OS
243# else 260# else
244# define EV_USE_NANOSLEEP 0 261# define EV_USE_NANOSLEEP 0
245# endif 262# endif
246#endif 263#endif
247 264
248#ifndef EV_USE_SELECT 265#ifndef EV_USE_SELECT
249# define EV_USE_SELECT 1 266# define EV_USE_SELECT EV_FEATURE_BACKENDS
250#endif 267#endif
251 268
252#ifndef EV_USE_POLL 269#ifndef EV_USE_POLL
253# ifdef _WIN32 270# ifdef _WIN32
254# define EV_USE_POLL 0 271# define EV_USE_POLL 0
255# else 272# else
256# define EV_USE_POLL 1 273# define EV_USE_POLL EV_FEATURE_BACKENDS
257# endif 274# endif
258#endif 275#endif
259 276
260#ifndef EV_USE_EPOLL 277#ifndef EV_USE_EPOLL
261# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
262# define EV_USE_EPOLL 1 279# define EV_USE_EPOLL EV_FEATURE_BACKENDS
263# else 280# else
264# define EV_USE_EPOLL 0 281# define EV_USE_EPOLL 0
265# endif 282# endif
266#endif 283#endif
267 284
273# define EV_USE_PORT 0 290# define EV_USE_PORT 0
274#endif 291#endif
275 292
276#ifndef EV_USE_INOTIFY 293#ifndef EV_USE_INOTIFY
277# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 294# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
278# define EV_USE_INOTIFY 1 295# define EV_USE_INOTIFY EV_FEATURE_OS
279# else 296# else
280# define EV_USE_INOTIFY 0 297# define EV_USE_INOTIFY 0
281# endif 298# endif
282#endif 299#endif
283 300
284#ifndef EV_PID_HASHSIZE 301#ifndef EV_PID_HASHSIZE
285# if EV_MINIMAL 302# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
286# define EV_PID_HASHSIZE 1
287# else
288# define EV_PID_HASHSIZE 16
289# endif
290#endif 303#endif
291 304
292#ifndef EV_INOTIFY_HASHSIZE 305#ifndef EV_INOTIFY_HASHSIZE
293# if EV_MINIMAL 306# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
294# define EV_INOTIFY_HASHSIZE 1
295# else
296# define EV_INOTIFY_HASHSIZE 16
297# endif
298#endif 307#endif
299 308
300#ifndef EV_USE_EVENTFD 309#ifndef EV_USE_EVENTFD
301# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
302# define EV_USE_EVENTFD 1 311# define EV_USE_EVENTFD EV_FEATURE_OS
303# else 312# else
304# define EV_USE_EVENTFD 0 313# define EV_USE_EVENTFD 0
305# endif 314# endif
306#endif 315#endif
307 316
308#ifndef EV_USE_SIGNALFD 317#ifndef EV_USE_SIGNALFD
309# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 318# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
310# define EV_USE_SIGNALFD 1 319# define EV_USE_SIGNALFD EV_FEATURE_OS
311# else 320# else
312# define EV_USE_SIGNALFD 0 321# define EV_USE_SIGNALFD 0
313# endif 322# endif
314#endif 323#endif
315 324
318# define EV_USE_4HEAP 1 327# define EV_USE_4HEAP 1
319# define EV_HEAP_CACHE_AT 1 328# define EV_HEAP_CACHE_AT 1
320#endif 329#endif
321 330
322#ifndef EV_VERIFY 331#ifndef EV_VERIFY
323# define EV_VERIFY !EV_MINIMAL 332# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
324#endif 333#endif
325 334
326#ifndef EV_USE_4HEAP 335#ifndef EV_USE_4HEAP
327# define EV_USE_4HEAP !EV_MINIMAL 336# define EV_USE_4HEAP EV_FEATURE_DATA
328#endif 337#endif
329 338
330#ifndef EV_HEAP_CACHE_AT 339#ifndef EV_HEAP_CACHE_AT
331# define EV_HEAP_CACHE_AT !EV_MINIMAL 340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
332#endif 341#endif
333 342
334/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
335/* which makes programs even slower. might work on other unices, too. */ 344/* which makes programs even slower. might work on other unices, too. */
336#if EV_USE_CLOCK_SYSCALL 345#if EV_USE_CLOCK_SYSCALL
373# include <sys/select.h> 382# include <sys/select.h>
374# endif 383# endif
375#endif 384#endif
376 385
377#if EV_USE_INOTIFY 386#if EV_USE_INOTIFY
378# include <sys/utsname.h>
379# include <sys/statfs.h> 387# include <sys/statfs.h>
380# include <sys/inotify.h> 388# include <sys/inotify.h>
381/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
382# ifndef IN_DONT_FOLLOW 390# ifndef IN_DONT_FOLLOW
383# undef EV_USE_INOTIFY 391# undef EV_USE_INOTIFY
400# define EFD_CLOEXEC O_CLOEXEC 408# define EFD_CLOEXEC O_CLOEXEC
401# else 409# else
402# define EFD_CLOEXEC 02000000 410# define EFD_CLOEXEC 02000000
403# endif 411# endif
404# endif 412# endif
405# ifdef __cplusplus
406extern "C" {
407# endif
408int eventfd (unsigned int initval, int flags); 413EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
409# ifdef __cplusplus
410}
411# endif
412#endif 414#endif
413 415
414#if EV_USE_SIGNALFD 416#if EV_USE_SIGNALFD
415/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
416# include <stdint.h> 418# include <stdint.h>
422# define SFD_CLOEXEC O_CLOEXEC 424# define SFD_CLOEXEC O_CLOEXEC
423# else 425# else
424# define SFD_CLOEXEC 02000000 426# define SFD_CLOEXEC 02000000
425# endif 427# endif
426# endif 428# endif
427# ifdef __cplusplus
428extern "C" {
429# endif
430int signalfd (int fd, const sigset_t *mask, int flags); 429EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
431 430
432struct signalfd_siginfo 431struct signalfd_siginfo
433{ 432{
434 uint32_t ssi_signo; 433 uint32_t ssi_signo;
435 char pad[128 - sizeof (uint32_t)]; 434 char pad[128 - sizeof (uint32_t)];
436}; 435};
437# ifdef __cplusplus
438}
439# endif 436#endif
440#endif
441
442 437
443/**/ 438/**/
444 439
445#if EV_VERIFY >= 3 440#if EV_VERIFY >= 3
446# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 441# define EV_FREQUENT_CHECK ev_verify (EV_A)
447#else 442#else
448# define EV_FREQUENT_CHECK do { } while (0) 443# define EV_FREQUENT_CHECK do { } while (0)
449#endif 444#endif
450 445
451/* 446/*
459#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
460 455
461#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 456#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
462#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 457#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
463 458
459#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
460#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
461
464#if __GNUC__ >= 4 462#if __GNUC__ >= 4
465# define expect(expr,value) __builtin_expect ((expr),(value)) 463# define expect(expr,value) __builtin_expect ((expr),(value))
466# define noinline __attribute__ ((noinline)) 464# define noinline __attribute__ ((noinline))
467#else 465#else
468# define expect(expr,value) (expr) 466# define expect(expr,value) (expr)
474 472
475#define expect_false(expr) expect ((expr) != 0, 0) 473#define expect_false(expr) expect ((expr) != 0, 0)
476#define expect_true(expr) expect ((expr) != 0, 1) 474#define expect_true(expr) expect ((expr) != 0, 1)
477#define inline_size static inline 475#define inline_size static inline
478 476
479#if EV_MINIMAL 477#if EV_FEATURE_CODE
478# define inline_speed static inline
479#else
480# define inline_speed static noinline 480# define inline_speed static noinline
481#else
482# define inline_speed static inline
483#endif 481#endif
484 482
485#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
486 484
487#if EV_MINPRI == EV_MAXPRI 485#if EV_MINPRI == EV_MAXPRI
500#define ev_active(w) ((W)(w))->active 498#define ev_active(w) ((W)(w))->active
501#define ev_at(w) ((WT)(w))->at 499#define ev_at(w) ((WT)(w))->at
502 500
503#if EV_USE_REALTIME 501#if EV_USE_REALTIME
504/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 502/* sig_atomic_t is used to avoid per-thread variables or locking but still */
505/* giving it a reasonably high chance of working on typical architetcures */ 503/* giving it a reasonably high chance of working on typical architectures */
506static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 504static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
507#endif 505#endif
508 506
509#if EV_USE_MONOTONIC 507#if EV_USE_MONOTONIC
510static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 508static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
523#ifdef _WIN32 521#ifdef _WIN32
524# include "ev_win32.c" 522# include "ev_win32.c"
525#endif 523#endif
526 524
527/*****************************************************************************/ 525/*****************************************************************************/
526
527#ifdef __linux
528# include <sys/utsname.h>
529#endif
530
531static unsigned int noinline
532ev_linux_version (void)
533{
534#ifdef __linux
535 unsigned int v = 0;
536 struct utsname buf;
537 int i;
538 char *p = buf.release;
539
540 if (uname (&buf))
541 return 0;
542
543 for (i = 3+1; --i; )
544 {
545 unsigned int c = 0;
546
547 for (;;)
548 {
549 if (*p >= '0' && *p <= '9')
550 c = c * 10 + *p++ - '0';
551 else
552 {
553 p += *p == '.';
554 break;
555 }
556 }
557
558 v = (v << 8) | c;
559 }
560
561 return v;
562#else
563 return 0;
564#endif
565}
566
567/*****************************************************************************/
568
569#if EV_AVOID_STDIO
570static void noinline
571ev_printerr (const char *msg)
572{
573 write (STDERR_FILENO, msg, strlen (msg));
574}
575#endif
528 576
529static void (*syserr_cb)(const char *msg); 577static void (*syserr_cb)(const char *msg);
530 578
531void 579void
532ev_set_syserr_cb (void (*cb)(const char *msg)) 580ev_set_syserr_cb (void (*cb)(const char *msg))
542 590
543 if (syserr_cb) 591 if (syserr_cb)
544 syserr_cb (msg); 592 syserr_cb (msg);
545 else 593 else
546 { 594 {
595#if EV_AVOID_STDIO
596 const char *err = strerror (errno);
597
598 ev_printerr (msg);
599 ev_printerr (": ");
600 ev_printerr (err);
601 ev_printerr ("\n");
602#else
547 perror (msg); 603 perror (msg);
604#endif
548 abort (); 605 abort ();
549 } 606 }
550} 607}
551 608
552static void * 609static void *
553ev_realloc_emul (void *ptr, long size) 610ev_realloc_emul (void *ptr, long size)
554{ 611{
612#if __GLIBC__
613 return realloc (ptr, size);
614#else
555 /* some systems, notably openbsd and darwin, fail to properly 615 /* some systems, notably openbsd and darwin, fail to properly
556 * implement realloc (x, 0) (as required by both ansi c-98 and 616 * implement realloc (x, 0) (as required by both ansi c-89 and
557 * the single unix specification, so work around them here. 617 * the single unix specification, so work around them here.
558 */ 618 */
559 619
560 if (size) 620 if (size)
561 return realloc (ptr, size); 621 return realloc (ptr, size);
562 622
563 free (ptr); 623 free (ptr);
564 return 0; 624 return 0;
625#endif
565} 626}
566 627
567static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 628static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
568 629
569void 630void
577{ 638{
578 ptr = alloc (ptr, size); 639 ptr = alloc (ptr, size);
579 640
580 if (!ptr && size) 641 if (!ptr && size)
581 { 642 {
643#if EV_AVOID_STDIO
644 ev_printerr ("libev: memory allocation failed, aborting.\n");
645#else
582 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 646 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
647#endif
583 abort (); 648 abort ();
584 } 649 }
585 650
586 return ptr; 651 return ptr;
587} 652}
603 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 668 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
604 unsigned char unused; 669 unsigned char unused;
605#if EV_USE_EPOLL 670#if EV_USE_EPOLL
606 unsigned int egen; /* generation counter to counter epoll bugs */ 671 unsigned int egen; /* generation counter to counter epoll bugs */
607#endif 672#endif
608#if EV_SELECT_IS_WINSOCKET 673#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
609 SOCKET handle; 674 SOCKET handle;
675#endif
676#if EV_USE_IOCP
677 OVERLAPPED or, ow;
610#endif 678#endif
611} ANFD; 679} ANFD;
612 680
613/* stores the pending event set for a given watcher */ 681/* stores the pending event set for a given watcher */
614typedef struct 682typedef struct
669 737
670 static int ev_default_loop_ptr; 738 static int ev_default_loop_ptr;
671 739
672#endif 740#endif
673 741
674#if EV_MINIMAL < 2 742#if EV_FEATURE_API
675# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 743# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
676# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 744# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
677# define EV_INVOKE_PENDING invoke_cb (EV_A) 745# define EV_INVOKE_PENDING invoke_cb (EV_A)
678#else 746#else
679# define EV_RELEASE_CB (void)0 747# define EV_RELEASE_CB (void)0
680# define EV_ACQUIRE_CB (void)0 748# define EV_ACQUIRE_CB (void)0
681# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 749# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
682#endif 750#endif
683 751
684#define EVUNLOOP_RECURSE 0x80 752#define EVBREAK_RECURSE 0x80
685 753
686/*****************************************************************************/ 754/*****************************************************************************/
687 755
688#ifndef EV_HAVE_EV_TIME 756#ifndef EV_HAVE_EV_TIME
689ev_tstamp 757ev_tstamp
733 if (delay > 0.) 801 if (delay > 0.)
734 { 802 {
735#if EV_USE_NANOSLEEP 803#if EV_USE_NANOSLEEP
736 struct timespec ts; 804 struct timespec ts;
737 805
738 ts.tv_sec = (time_t)delay; 806 EV_TS_SET (ts, delay);
739 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
740
741 nanosleep (&ts, 0); 807 nanosleep (&ts, 0);
742#elif defined(_WIN32) 808#elif defined(_WIN32)
743 Sleep ((unsigned long)(delay * 1e3)); 809 Sleep ((unsigned long)(delay * 1e3));
744#else 810#else
745 struct timeval tv; 811 struct timeval tv;
746 812
747 tv.tv_sec = (time_t)delay;
748 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
749
750 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 813 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
751 /* something not guaranteed by newer posix versions, but guaranteed */ 814 /* something not guaranteed by newer posix versions, but guaranteed */
752 /* by older ones */ 815 /* by older ones */
816 EV_TV_SET (tv, delay);
753 select (0, 0, 0, 0, &tv); 817 select (0, 0, 0, 0, &tv);
754#endif 818#endif
755 } 819 }
756} 820}
757 821
758/*****************************************************************************/ 822/*****************************************************************************/
759 823
760#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 824#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
761 825
762/* find a suitable new size for the given array, */ 826/* find a suitable new size for the given array, */
763/* hopefully by rounding to a ncie-to-malloc size */ 827/* hopefully by rounding to a nice-to-malloc size */
764inline_size int 828inline_size int
765array_nextsize (int elem, int cur, int cnt) 829array_nextsize (int elem, int cur, int cnt)
766{ 830{
767 int ncur = cur + 1; 831 int ncur = cur + 1;
768 832
864} 928}
865 929
866/*****************************************************************************/ 930/*****************************************************************************/
867 931
868inline_speed void 932inline_speed void
869fd_event_nc (EV_P_ int fd, int revents) 933fd_event_nocheck (EV_P_ int fd, int revents)
870{ 934{
871 ANFD *anfd = anfds + fd; 935 ANFD *anfd = anfds + fd;
872 ev_io *w; 936 ev_io *w;
873 937
874 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 938 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
886fd_event (EV_P_ int fd, int revents) 950fd_event (EV_P_ int fd, int revents)
887{ 951{
888 ANFD *anfd = anfds + fd; 952 ANFD *anfd = anfds + fd;
889 953
890 if (expect_true (!anfd->reify)) 954 if (expect_true (!anfd->reify))
891 fd_event_nc (EV_A_ fd, revents); 955 fd_event_nocheck (EV_A_ fd, revents);
892} 956}
893 957
894void 958void
895ev_feed_fd_event (EV_P_ int fd, int revents) 959ev_feed_fd_event (EV_P_ int fd, int revents)
896{ 960{
897 if (fd >= 0 && fd < anfdmax) 961 if (fd >= 0 && fd < anfdmax)
898 fd_event_nc (EV_A_ fd, revents); 962 fd_event_nocheck (EV_A_ fd, revents);
899} 963}
900 964
901/* make sure the external fd watch events are in-sync */ 965/* make sure the external fd watch events are in-sync */
902/* with the kernel/libev internal state */ 966/* with the kernel/libev internal state */
903inline_size void 967inline_size void
909 { 973 {
910 int fd = fdchanges [i]; 974 int fd = fdchanges [i];
911 ANFD *anfd = anfds + fd; 975 ANFD *anfd = anfds + fd;
912 ev_io *w; 976 ev_io *w;
913 977
914 unsigned char events = 0; 978 unsigned char o_events = anfd->events;
979 unsigned char o_reify = anfd->reify;
915 980
916 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 981 anfd->reify = 0;
917 events |= (unsigned char)w->events;
918 982
919#if EV_SELECT_IS_WINSOCKET 983#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
920 if (events) 984 if (o_reify & EV__IOFDSET)
921 { 985 {
922 unsigned long arg; 986 unsigned long arg;
923 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 987 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
924 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 988 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
989 printf ("oi %d %x\n", fd, anfd->handle);//D
925 } 990 }
926#endif 991#endif
927 992
993 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
928 { 994 {
929 unsigned char o_events = anfd->events;
930 unsigned char o_reify = anfd->reify;
931
932 anfd->reify = 0;
933 anfd->events = events; 995 anfd->events = 0;
934 996
935 if (o_events != events || o_reify & EV__IOFDSET) 997 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
998 anfd->events |= (unsigned char)w->events;
999
1000 if (o_events != anfd->events)
1001 o_reify = EV__IOFDSET; /* actually |= */
1002 }
1003
1004 if (o_reify & EV__IOFDSET)
936 backend_modify (EV_A_ fd, o_events, events); 1005 backend_modify (EV_A_ fd, o_events, anfd->events);
937 }
938 } 1006 }
939 1007
940 fdchangecnt = 0; 1008 fdchangecnt = 0;
941} 1009}
942 1010
966 ev_io_stop (EV_A_ w); 1034 ev_io_stop (EV_A_ w);
967 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1035 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
968 } 1036 }
969} 1037}
970 1038
971/* check whether the given fd is atcually valid, for error recovery */ 1039/* check whether the given fd is actually valid, for error recovery */
972inline_size int 1040inline_size int
973fd_valid (int fd) 1041fd_valid (int fd)
974{ 1042{
975#ifdef _WIN32 1043#ifdef _WIN32
976 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1044 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1018 anfds [fd].emask = 0; 1086 anfds [fd].emask = 0;
1019 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1087 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1020 } 1088 }
1021} 1089}
1022 1090
1091/* used to prepare libev internal fd's */
1092/* this is not fork-safe */
1093inline_speed void
1094fd_intern (int fd)
1095{
1096#ifdef _WIN32
1097 unsigned long arg = 1;
1098 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1099#else
1100 fcntl (fd, F_SETFD, FD_CLOEXEC);
1101 fcntl (fd, F_SETFL, O_NONBLOCK);
1102#endif
1103}
1104
1023/*****************************************************************************/ 1105/*****************************************************************************/
1024 1106
1025/* 1107/*
1026 * the heap functions want a real array index. array index 0 uis guaranteed to not 1108 * the heap functions want a real array index. array index 0 is guaranteed to not
1027 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1109 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1028 * the branching factor of the d-tree. 1110 * the branching factor of the d-tree.
1029 */ 1111 */
1030 1112
1031/* 1113/*
1179 1261
1180static ANSIG signals [EV_NSIG - 1]; 1262static ANSIG signals [EV_NSIG - 1];
1181 1263
1182/*****************************************************************************/ 1264/*****************************************************************************/
1183 1265
1184/* used to prepare libev internal fd's */ 1266#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1185/* this is not fork-safe */
1186inline_speed void
1187fd_intern (int fd)
1188{
1189#ifdef _WIN32
1190 unsigned long arg = 1;
1191 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1192#else
1193 fcntl (fd, F_SETFD, FD_CLOEXEC);
1194 fcntl (fd, F_SETFL, O_NONBLOCK);
1195#endif
1196}
1197 1267
1198static void noinline 1268static void noinline
1199evpipe_init (EV_P) 1269evpipe_init (EV_P)
1200{ 1270{
1201 if (!ev_is_active (&pipe_w)) 1271 if (!ev_is_active (&pipe_w))
1202 { 1272 {
1203#if EV_USE_EVENTFD 1273# if EV_USE_EVENTFD
1204 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1274 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1205 if (evfd < 0 && errno == EINVAL) 1275 if (evfd < 0 && errno == EINVAL)
1206 evfd = eventfd (0, 0); 1276 evfd = eventfd (0, 0);
1207 1277
1208 if (evfd >= 0) 1278 if (evfd >= 0)
1210 evpipe [0] = -1; 1280 evpipe [0] = -1;
1211 fd_intern (evfd); /* doing it twice doesn't hurt */ 1281 fd_intern (evfd); /* doing it twice doesn't hurt */
1212 ev_io_set (&pipe_w, evfd, EV_READ); 1282 ev_io_set (&pipe_w, evfd, EV_READ);
1213 } 1283 }
1214 else 1284 else
1215#endif 1285# endif
1216 { 1286 {
1217 while (pipe (evpipe)) 1287 while (pipe (evpipe))
1218 ev_syserr ("(libev) error creating signal/async pipe"); 1288 ev_syserr ("(libev) error creating signal/async pipe");
1219 1289
1220 fd_intern (evpipe [0]); 1290 fd_intern (evpipe [0]);
1231evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1301evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1232{ 1302{
1233 if (!*flag) 1303 if (!*flag)
1234 { 1304 {
1235 int old_errno = errno; /* save errno because write might clobber it */ 1305 int old_errno = errno; /* save errno because write might clobber it */
1306 char dummy;
1236 1307
1237 *flag = 1; 1308 *flag = 1;
1238 1309
1239#if EV_USE_EVENTFD 1310#if EV_USE_EVENTFD
1240 if (evfd >= 0) 1311 if (evfd >= 0)
1242 uint64_t counter = 1; 1313 uint64_t counter = 1;
1243 write (evfd, &counter, sizeof (uint64_t)); 1314 write (evfd, &counter, sizeof (uint64_t));
1244 } 1315 }
1245 else 1316 else
1246#endif 1317#endif
1318 /* win32 people keep sending patches that change this write() to send() */
1319 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1320 /* so when you think this write should be a send instead, please find out */
1321 /* where your send() is from - it's definitely not the microsoft send, and */
1322 /* tell me. thank you. */
1247 write (evpipe [1], &old_errno, 1); 1323 write (evpipe [1], &dummy, 1);
1248 1324
1249 errno = old_errno; 1325 errno = old_errno;
1250 } 1326 }
1251} 1327}
1252 1328
1265 } 1341 }
1266 else 1342 else
1267#endif 1343#endif
1268 { 1344 {
1269 char dummy; 1345 char dummy;
1346 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1270 read (evpipe [0], &dummy, 1); 1347 read (evpipe [0], &dummy, 1);
1271 } 1348 }
1272 1349
1273 if (sig_pending) 1350 if (sig_pending)
1274 { 1351 {
1353 break; 1430 break;
1354 } 1431 }
1355} 1432}
1356#endif 1433#endif
1357 1434
1435#endif
1436
1358/*****************************************************************************/ 1437/*****************************************************************************/
1359 1438
1439#if EV_CHILD_ENABLE
1360static WL childs [EV_PID_HASHSIZE]; 1440static WL childs [EV_PID_HASHSIZE];
1361
1362#ifndef _WIN32
1363 1441
1364static ev_signal childev; 1442static ev_signal childev;
1365 1443
1366#ifndef WIFCONTINUED 1444#ifndef WIFCONTINUED
1367# define WIFCONTINUED(status) 0 1445# define WIFCONTINUED(status) 0
1372child_reap (EV_P_ int chain, int pid, int status) 1450child_reap (EV_P_ int chain, int pid, int status)
1373{ 1451{
1374 ev_child *w; 1452 ev_child *w;
1375 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1453 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1376 1454
1377 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1455 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1378 { 1456 {
1379 if ((w->pid == pid || !w->pid) 1457 if ((w->pid == pid || !w->pid)
1380 && (!traced || (w->flags & 1))) 1458 && (!traced || (w->flags & 1)))
1381 { 1459 {
1382 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1460 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
1407 /* make sure we are called again until all children have been reaped */ 1485 /* make sure we are called again until all children have been reaped */
1408 /* we need to do it this way so that the callback gets called before we continue */ 1486 /* we need to do it this way so that the callback gets called before we continue */
1409 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1487 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1410 1488
1411 child_reap (EV_A_ pid, pid, status); 1489 child_reap (EV_A_ pid, pid, status);
1412 if (EV_PID_HASHSIZE > 1) 1490 if ((EV_PID_HASHSIZE) > 1)
1413 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1491 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1414} 1492}
1415 1493
1416#endif 1494#endif
1417 1495
1418/*****************************************************************************/ 1496/*****************************************************************************/
1419 1497
1498#if EV_USE_IOCP
1499# include "ev_iocp.c"
1500#endif
1420#if EV_USE_PORT 1501#if EV_USE_PORT
1421# include "ev_port.c" 1502# include "ev_port.c"
1422#endif 1503#endif
1423#if EV_USE_KQUEUE 1504#if EV_USE_KQUEUE
1424# include "ev_kqueue.c" 1505# include "ev_kqueue.c"
1484#ifdef __APPLE__ 1565#ifdef __APPLE__
1485 /* only select works correctly on that "unix-certified" platform */ 1566 /* only select works correctly on that "unix-certified" platform */
1486 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1567 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1487 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1568 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1488#endif 1569#endif
1570#ifdef __FreeBSD__
1571 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1572#endif
1489 1573
1490 return flags; 1574 return flags;
1491} 1575}
1492 1576
1493unsigned int 1577unsigned int
1494ev_embeddable_backends (void) 1578ev_embeddable_backends (void)
1495{ 1579{
1496 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1580 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1497 1581
1498 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1582 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1499 /* please fix it and tell me how to detect the fix */ 1583 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1500 flags &= ~EVBACKEND_EPOLL; 1584 flags &= ~EVBACKEND_EPOLL;
1501 1585
1502 return flags; 1586 return flags;
1503} 1587}
1504 1588
1505unsigned int 1589unsigned int
1506ev_backend (EV_P) 1590ev_backend (EV_P)
1507{ 1591{
1508 return backend; 1592 return backend;
1509} 1593}
1510 1594
1511#if EV_MINIMAL < 2 1595#if EV_FEATURE_API
1512unsigned int 1596unsigned int
1513ev_loop_count (EV_P) 1597ev_iteration (EV_P)
1514{ 1598{
1515 return loop_count; 1599 return loop_count;
1516} 1600}
1517 1601
1518unsigned int 1602unsigned int
1519ev_loop_depth (EV_P) 1603ev_depth (EV_P)
1520{ 1604{
1521 return loop_depth; 1605 return loop_depth;
1522} 1606}
1523 1607
1524void 1608void
1596 1680
1597 ev_rt_now = ev_time (); 1681 ev_rt_now = ev_time ();
1598 mn_now = get_clock (); 1682 mn_now = get_clock ();
1599 now_floor = mn_now; 1683 now_floor = mn_now;
1600 rtmn_diff = ev_rt_now - mn_now; 1684 rtmn_diff = ev_rt_now - mn_now;
1601#if EV_MINIMAL < 2 1685#if EV_FEATURE_API
1602 invoke_cb = ev_invoke_pending; 1686 invoke_cb = ev_invoke_pending;
1603#endif 1687#endif
1604 1688
1605 io_blocktime = 0.; 1689 io_blocktime = 0.;
1606 timeout_blocktime = 0.; 1690 timeout_blocktime = 0.;
1618#endif 1702#endif
1619 1703
1620 if (!(flags & 0x0000ffffU)) 1704 if (!(flags & 0x0000ffffU))
1621 flags |= ev_recommended_backends (); 1705 flags |= ev_recommended_backends ();
1622 1706
1707#if EV_USE_IOCP
1708 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1709#endif
1623#if EV_USE_PORT 1710#if EV_USE_PORT
1624 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1711 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1625#endif 1712#endif
1626#if EV_USE_KQUEUE 1713#if EV_USE_KQUEUE
1627 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1714 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
1636 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1723 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1637#endif 1724#endif
1638 1725
1639 ev_prepare_init (&pending_w, pendingcb); 1726 ev_prepare_init (&pending_w, pendingcb);
1640 1727
1728#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1641 ev_init (&pipe_w, pipecb); 1729 ev_init (&pipe_w, pipecb);
1642 ev_set_priority (&pipe_w, EV_MAXPRI); 1730 ev_set_priority (&pipe_w, EV_MAXPRI);
1731#endif
1643 } 1732 }
1644} 1733}
1645 1734
1646/* free up a loop structure */ 1735/* free up a loop structure */
1647static void noinline 1736void
1648loop_destroy (EV_P) 1737ev_loop_destroy (EV_P)
1649{ 1738{
1650 int i; 1739 int i;
1740
1741 /* mimic free (0) */
1742 if (!EV_A)
1743 return;
1744
1745#if EV_CLEANUP_ENABLE
1746 /* queue cleanup watchers (and execute them) */
1747 if (expect_false (cleanupcnt))
1748 {
1749 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1750 EV_INVOKE_PENDING;
1751 }
1752#endif
1753
1754#if EV_CHILD_ENABLE
1755 if (ev_is_active (&childev))
1756 {
1757 ev_ref (EV_A); /* child watcher */
1758 ev_signal_stop (EV_A_ &childev);
1759 }
1760#endif
1651 1761
1652 if (ev_is_active (&pipe_w)) 1762 if (ev_is_active (&pipe_w))
1653 { 1763 {
1654 /*ev_ref (EV_A);*/ 1764 /*ev_ref (EV_A);*/
1655 /*ev_io_stop (EV_A_ &pipe_w);*/ 1765 /*ev_io_stop (EV_A_ &pipe_w);*/
1677#endif 1787#endif
1678 1788
1679 if (backend_fd >= 0) 1789 if (backend_fd >= 0)
1680 close (backend_fd); 1790 close (backend_fd);
1681 1791
1792#if EV_USE_IOCP
1793 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1794#endif
1682#if EV_USE_PORT 1795#if EV_USE_PORT
1683 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1796 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1684#endif 1797#endif
1685#if EV_USE_KQUEUE 1798#if EV_USE_KQUEUE
1686 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1799 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
1713 array_free (periodic, EMPTY); 1826 array_free (periodic, EMPTY);
1714#endif 1827#endif
1715#if EV_FORK_ENABLE 1828#if EV_FORK_ENABLE
1716 array_free (fork, EMPTY); 1829 array_free (fork, EMPTY);
1717#endif 1830#endif
1831#if EV_CLEANUP_ENABLE
1832 array_free (cleanup, EMPTY);
1833#endif
1718 array_free (prepare, EMPTY); 1834 array_free (prepare, EMPTY);
1719 array_free (check, EMPTY); 1835 array_free (check, EMPTY);
1720#if EV_ASYNC_ENABLE 1836#if EV_ASYNC_ENABLE
1721 array_free (async, EMPTY); 1837 array_free (async, EMPTY);
1722#endif 1838#endif
1723 1839
1724 backend = 0; 1840 backend = 0;
1841
1842#if EV_MULTIPLICITY
1843 if (ev_is_default_loop (EV_A))
1844#endif
1845 ev_default_loop_ptr = 0;
1846#if EV_MULTIPLICITY
1847 else
1848 ev_free (EV_A);
1849#endif
1725} 1850}
1726 1851
1727#if EV_USE_INOTIFY 1852#if EV_USE_INOTIFY
1728inline_size void infy_fork (EV_P); 1853inline_size void infy_fork (EV_P);
1729#endif 1854#endif
1765 { 1890 {
1766 EV_WIN32_CLOSE_FD (evpipe [0]); 1891 EV_WIN32_CLOSE_FD (evpipe [0]);
1767 EV_WIN32_CLOSE_FD (evpipe [1]); 1892 EV_WIN32_CLOSE_FD (evpipe [1]);
1768 } 1893 }
1769 1894
1895#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1770 evpipe_init (EV_A); 1896 evpipe_init (EV_A);
1771 /* now iterate over everything, in case we missed something */ 1897 /* now iterate over everything, in case we missed something */
1772 pipecb (EV_A_ &pipe_w, EV_READ); 1898 pipecb (EV_A_ &pipe_w, EV_READ);
1899#endif
1773 } 1900 }
1774 1901
1775 postfork = 0; 1902 postfork = 0;
1776} 1903}
1777 1904
1786 loop_init (EV_A_ flags); 1913 loop_init (EV_A_ flags);
1787 1914
1788 if (ev_backend (EV_A)) 1915 if (ev_backend (EV_A))
1789 return EV_A; 1916 return EV_A;
1790 1917
1918 ev_free (EV_A);
1791 return 0; 1919 return 0;
1792} 1920}
1793 1921
1794void
1795ev_loop_destroy (EV_P)
1796{
1797 loop_destroy (EV_A);
1798 ev_free (loop);
1799}
1800
1801void
1802ev_loop_fork (EV_P)
1803{
1804 postfork = 1; /* must be in line with ev_default_fork */
1805}
1806#endif /* multiplicity */ 1922#endif /* multiplicity */
1807 1923
1808#if EV_VERIFY 1924#if EV_VERIFY
1809static void noinline 1925static void noinline
1810verify_watcher (EV_P_ W w) 1926verify_watcher (EV_P_ W w)
1839 verify_watcher (EV_A_ ws [cnt]); 1955 verify_watcher (EV_A_ ws [cnt]);
1840 } 1956 }
1841} 1957}
1842#endif 1958#endif
1843 1959
1844#if EV_MINIMAL < 2 1960#if EV_FEATURE_API
1845void 1961void
1846ev_loop_verify (EV_P) 1962ev_verify (EV_P)
1847{ 1963{
1848#if EV_VERIFY 1964#if EV_VERIFY
1849 int i; 1965 int i;
1850 WL w; 1966 WL w;
1851 1967
1885#if EV_FORK_ENABLE 2001#if EV_FORK_ENABLE
1886 assert (forkmax >= forkcnt); 2002 assert (forkmax >= forkcnt);
1887 array_verify (EV_A_ (W *)forks, forkcnt); 2003 array_verify (EV_A_ (W *)forks, forkcnt);
1888#endif 2004#endif
1889 2005
2006#if EV_CLEANUP_ENABLE
2007 assert (cleanupmax >= cleanupcnt);
2008 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2009#endif
2010
1890#if EV_ASYNC_ENABLE 2011#if EV_ASYNC_ENABLE
1891 assert (asyncmax >= asynccnt); 2012 assert (asyncmax >= asynccnt);
1892 array_verify (EV_A_ (W *)asyncs, asynccnt); 2013 array_verify (EV_A_ (W *)asyncs, asynccnt);
1893#endif 2014#endif
1894 2015
2016#if EV_PREPARE_ENABLE
1895 assert (preparemax >= preparecnt); 2017 assert (preparemax >= preparecnt);
1896 array_verify (EV_A_ (W *)prepares, preparecnt); 2018 array_verify (EV_A_ (W *)prepares, preparecnt);
2019#endif
1897 2020
2021#if EV_CHECK_ENABLE
1898 assert (checkmax >= checkcnt); 2022 assert (checkmax >= checkcnt);
1899 array_verify (EV_A_ (W *)checks, checkcnt); 2023 array_verify (EV_A_ (W *)checks, checkcnt);
2024#endif
1900 2025
1901# if 0 2026# if 0
2027#if EV_CHILD_ENABLE
1902 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2028 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1903 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2029 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2030#endif
1904# endif 2031# endif
1905#endif 2032#endif
1906} 2033}
1907#endif 2034#endif
1908 2035
1909#if EV_MULTIPLICITY 2036#if EV_MULTIPLICITY
1910struct ev_loop * 2037struct ev_loop *
1911ev_default_loop_init (unsigned int flags)
1912#else 2038#else
1913int 2039int
2040#endif
1914ev_default_loop (unsigned int flags) 2041ev_default_loop (unsigned int flags)
1915#endif
1916{ 2042{
1917 if (!ev_default_loop_ptr) 2043 if (!ev_default_loop_ptr)
1918 { 2044 {
1919#if EV_MULTIPLICITY 2045#if EV_MULTIPLICITY
1920 EV_P = ev_default_loop_ptr = &default_loop_struct; 2046 EV_P = ev_default_loop_ptr = &default_loop_struct;
1924 2050
1925 loop_init (EV_A_ flags); 2051 loop_init (EV_A_ flags);
1926 2052
1927 if (ev_backend (EV_A)) 2053 if (ev_backend (EV_A))
1928 { 2054 {
1929#ifndef _WIN32 2055#if EV_CHILD_ENABLE
1930 ev_signal_init (&childev, childcb, SIGCHLD); 2056 ev_signal_init (&childev, childcb, SIGCHLD);
1931 ev_set_priority (&childev, EV_MAXPRI); 2057 ev_set_priority (&childev, EV_MAXPRI);
1932 ev_signal_start (EV_A_ &childev); 2058 ev_signal_start (EV_A_ &childev);
1933 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2059 ev_unref (EV_A); /* child watcher should not keep loop alive */
1934#endif 2060#endif
1939 2065
1940 return ev_default_loop_ptr; 2066 return ev_default_loop_ptr;
1941} 2067}
1942 2068
1943void 2069void
1944ev_default_destroy (void) 2070ev_loop_fork (EV_P)
1945{ 2071{
1946#if EV_MULTIPLICITY
1947 EV_P = ev_default_loop_ptr;
1948#endif
1949
1950 ev_default_loop_ptr = 0;
1951
1952#ifndef _WIN32
1953 ev_ref (EV_A); /* child watcher */
1954 ev_signal_stop (EV_A_ &childev);
1955#endif
1956
1957 loop_destroy (EV_A);
1958}
1959
1960void
1961ev_default_fork (void)
1962{
1963#if EV_MULTIPLICITY
1964 EV_P = ev_default_loop_ptr;
1965#endif
1966
1967 postfork = 1; /* must be in line with ev_loop_fork */ 2072 postfork = 1; /* must be in line with ev_default_fork */
1968} 2073}
1969 2074
1970/*****************************************************************************/ 2075/*****************************************************************************/
1971 2076
1972void 2077void
2063 EV_FREQUENT_CHECK; 2168 EV_FREQUENT_CHECK;
2064 feed_reverse (EV_A_ (W)w); 2169 feed_reverse (EV_A_ (W)w);
2065 } 2170 }
2066 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2171 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2067 2172
2068 feed_reverse_done (EV_A_ EV_TIMEOUT); 2173 feed_reverse_done (EV_A_ EV_TIMER);
2069 } 2174 }
2070} 2175}
2071 2176
2072#if EV_PERIODIC_ENABLE 2177#if EV_PERIODIC_ENABLE
2073/* make periodics pending */ 2178/* make periodics pending */
2126 feed_reverse_done (EV_A_ EV_PERIODIC); 2231 feed_reverse_done (EV_A_ EV_PERIODIC);
2127 } 2232 }
2128} 2233}
2129 2234
2130/* simply recalculate all periodics */ 2235/* simply recalculate all periodics */
2131/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2236/* TODO: maybe ensure that at least one event happens when jumping forward? */
2132static void noinline 2237static void noinline
2133periodics_reschedule (EV_P) 2238periodics_reschedule (EV_P)
2134{ 2239{
2135 int i; 2240 int i;
2136 2241
2232 mn_now = ev_rt_now; 2337 mn_now = ev_rt_now;
2233 } 2338 }
2234} 2339}
2235 2340
2236void 2341void
2237ev_loop (EV_P_ int flags) 2342ev_run (EV_P_ int flags)
2238{ 2343{
2239#if EV_MINIMAL < 2 2344#if EV_FEATURE_API
2240 ++loop_depth; 2345 ++loop_depth;
2241#endif 2346#endif
2242 2347
2243 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2348 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2244 2349
2245 loop_done = EVUNLOOP_CANCEL; 2350 loop_done = EVBREAK_CANCEL;
2246 2351
2247 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2352 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2248 2353
2249 do 2354 do
2250 { 2355 {
2251#if EV_VERIFY >= 2 2356#if EV_VERIFY >= 2
2252 ev_loop_verify (EV_A); 2357 ev_verify (EV_A);
2253#endif 2358#endif
2254 2359
2255#ifndef _WIN32 2360#ifndef _WIN32
2256 if (expect_false (curpid)) /* penalise the forking check even more */ 2361 if (expect_false (curpid)) /* penalise the forking check even more */
2257 if (expect_false (getpid () != curpid)) 2362 if (expect_false (getpid () != curpid))
2269 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2374 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2270 EV_INVOKE_PENDING; 2375 EV_INVOKE_PENDING;
2271 } 2376 }
2272#endif 2377#endif
2273 2378
2379#if EV_PREPARE_ENABLE
2274 /* queue prepare watchers (and execute them) */ 2380 /* queue prepare watchers (and execute them) */
2275 if (expect_false (preparecnt)) 2381 if (expect_false (preparecnt))
2276 { 2382 {
2277 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2383 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2278 EV_INVOKE_PENDING; 2384 EV_INVOKE_PENDING;
2279 } 2385 }
2386#endif
2280 2387
2281 if (expect_false (loop_done)) 2388 if (expect_false (loop_done))
2282 break; 2389 break;
2283 2390
2284 /* we might have forked, so reify kernel state if necessary */ 2391 /* we might have forked, so reify kernel state if necessary */
2291 /* calculate blocking time */ 2398 /* calculate blocking time */
2292 { 2399 {
2293 ev_tstamp waittime = 0.; 2400 ev_tstamp waittime = 0.;
2294 ev_tstamp sleeptime = 0.; 2401 ev_tstamp sleeptime = 0.;
2295 2402
2403 /* remember old timestamp for io_blocktime calculation */
2404 ev_tstamp prev_mn_now = mn_now;
2405
2406 /* update time to cancel out callback processing overhead */
2407 time_update (EV_A_ 1e100);
2408
2296 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2409 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2297 { 2410 {
2298 /* remember old timestamp for io_blocktime calculation */
2299 ev_tstamp prev_mn_now = mn_now;
2300
2301 /* update time to cancel out callback processing overhead */
2302 time_update (EV_A_ 1e100);
2303
2304 waittime = MAX_BLOCKTIME; 2411 waittime = MAX_BLOCKTIME;
2305 2412
2306 if (timercnt) 2413 if (timercnt)
2307 { 2414 {
2308 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2415 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
2335 waittime -= sleeptime; 2442 waittime -= sleeptime;
2336 } 2443 }
2337 } 2444 }
2338 } 2445 }
2339 2446
2340#if EV_MINIMAL < 2 2447#if EV_FEATURE_API
2341 ++loop_count; 2448 ++loop_count;
2342#endif 2449#endif
2343 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2450 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2344 backend_poll (EV_A_ waittime); 2451 backend_poll (EV_A_ waittime);
2345 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2452 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2346 2453
2347 /* update ev_rt_now, do magic */ 2454 /* update ev_rt_now, do magic */
2348 time_update (EV_A_ waittime + sleeptime); 2455 time_update (EV_A_ waittime + sleeptime);
2349 } 2456 }
2350 2457
2357#if EV_IDLE_ENABLE 2464#if EV_IDLE_ENABLE
2358 /* queue idle watchers unless other events are pending */ 2465 /* queue idle watchers unless other events are pending */
2359 idle_reify (EV_A); 2466 idle_reify (EV_A);
2360#endif 2467#endif
2361 2468
2469#if EV_CHECK_ENABLE
2362 /* queue check watchers, to be executed first */ 2470 /* queue check watchers, to be executed first */
2363 if (expect_false (checkcnt)) 2471 if (expect_false (checkcnt))
2364 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2472 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2473#endif
2365 2474
2366 EV_INVOKE_PENDING; 2475 EV_INVOKE_PENDING;
2367 } 2476 }
2368 while (expect_true ( 2477 while (expect_true (
2369 activecnt 2478 activecnt
2370 && !loop_done 2479 && !loop_done
2371 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2480 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2372 )); 2481 ));
2373 2482
2374 if (loop_done == EVUNLOOP_ONE) 2483 if (loop_done == EVBREAK_ONE)
2375 loop_done = EVUNLOOP_CANCEL; 2484 loop_done = EVBREAK_CANCEL;
2376 2485
2377#if EV_MINIMAL < 2 2486#if EV_FEATURE_API
2378 --loop_depth; 2487 --loop_depth;
2379#endif 2488#endif
2380} 2489}
2381 2490
2382void 2491void
2383ev_unloop (EV_P_ int how) 2492ev_break (EV_P_ int how)
2384{ 2493{
2385 loop_done = how; 2494 loop_done = how;
2386} 2495}
2387 2496
2388void 2497void
2536 EV_FREQUENT_CHECK; 2645 EV_FREQUENT_CHECK;
2537 2646
2538 wlist_del (&anfds[w->fd].head, (WL)w); 2647 wlist_del (&anfds[w->fd].head, (WL)w);
2539 ev_stop (EV_A_ (W)w); 2648 ev_stop (EV_A_ (W)w);
2540 2649
2541 fd_change (EV_A_ w->fd, 1); 2650 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2542 2651
2543 EV_FREQUENT_CHECK; 2652 EV_FREQUENT_CHECK;
2544} 2653}
2545 2654
2546void noinline 2655void noinline
2699 2808
2700#ifndef SA_RESTART 2809#ifndef SA_RESTART
2701# define SA_RESTART 0 2810# define SA_RESTART 0
2702#endif 2811#endif
2703 2812
2813#if EV_SIGNAL_ENABLE
2814
2704void noinline 2815void noinline
2705ev_signal_start (EV_P_ ev_signal *w) 2816ev_signal_start (EV_P_ ev_signal *w)
2706{ 2817{
2707 if (expect_false (ev_is_active (w))) 2818 if (expect_false (ev_is_active (w)))
2708 return; 2819 return;
2814 } 2925 }
2815 2926
2816 EV_FREQUENT_CHECK; 2927 EV_FREQUENT_CHECK;
2817} 2928}
2818 2929
2930#endif
2931
2932#if EV_CHILD_ENABLE
2933
2819void 2934void
2820ev_child_start (EV_P_ ev_child *w) 2935ev_child_start (EV_P_ ev_child *w)
2821{ 2936{
2822#if EV_MULTIPLICITY 2937#if EV_MULTIPLICITY
2823 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 2938 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2826 return; 2941 return;
2827 2942
2828 EV_FREQUENT_CHECK; 2943 EV_FREQUENT_CHECK;
2829 2944
2830 ev_start (EV_A_ (W)w, 1); 2945 ev_start (EV_A_ (W)w, 1);
2831 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2946 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2832 2947
2833 EV_FREQUENT_CHECK; 2948 EV_FREQUENT_CHECK;
2834} 2949}
2835 2950
2836void 2951void
2840 if (expect_false (!ev_is_active (w))) 2955 if (expect_false (!ev_is_active (w)))
2841 return; 2956 return;
2842 2957
2843 EV_FREQUENT_CHECK; 2958 EV_FREQUENT_CHECK;
2844 2959
2845 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 2960 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2846 ev_stop (EV_A_ (W)w); 2961 ev_stop (EV_A_ (W)w);
2847 2962
2848 EV_FREQUENT_CHECK; 2963 EV_FREQUENT_CHECK;
2849} 2964}
2965
2966#endif
2850 2967
2851#if EV_STAT_ENABLE 2968#if EV_STAT_ENABLE
2852 2969
2853# ifdef _WIN32 2970# ifdef _WIN32
2854# undef lstat 2971# undef lstat
2921 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3038 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2922 } 3039 }
2923 } 3040 }
2924 3041
2925 if (w->wd >= 0) 3042 if (w->wd >= 0)
2926 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3043 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2927 3044
2928 /* now re-arm timer, if required */ 3045 /* now re-arm timer, if required */
2929 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3046 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2930 ev_timer_again (EV_A_ &w->timer); 3047 ev_timer_again (EV_A_ &w->timer);
2931 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3048 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2939 3056
2940 if (wd < 0) 3057 if (wd < 0)
2941 return; 3058 return;
2942 3059
2943 w->wd = -2; 3060 w->wd = -2;
2944 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3061 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2945 wlist_del (&fs_hash [slot].head, (WL)w); 3062 wlist_del (&fs_hash [slot].head, (WL)w);
2946 3063
2947 /* remove this watcher, if others are watching it, they will rearm */ 3064 /* remove this watcher, if others are watching it, they will rearm */
2948 inotify_rm_watch (fs_fd, wd); 3065 inotify_rm_watch (fs_fd, wd);
2949} 3066}
2951static void noinline 3068static void noinline
2952infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3069infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2953{ 3070{
2954 if (slot < 0) 3071 if (slot < 0)
2955 /* overflow, need to check for all hash slots */ 3072 /* overflow, need to check for all hash slots */
2956 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3073 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2957 infy_wd (EV_A_ slot, wd, ev); 3074 infy_wd (EV_A_ slot, wd, ev);
2958 else 3075 else
2959 { 3076 {
2960 WL w_; 3077 WL w_;
2961 3078
2962 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3079 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2963 { 3080 {
2964 ev_stat *w = (ev_stat *)w_; 3081 ev_stat *w = (ev_stat *)w_;
2965 w_ = w_->next; /* lets us remove this watcher and all before it */ 3082 w_ = w_->next; /* lets us remove this watcher and all before it */
2966 3083
2967 if (w->wd == wd || wd == -1) 3084 if (w->wd == wd || wd == -1)
2968 { 3085 {
2969 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3086 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2970 { 3087 {
2971 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3088 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2972 w->wd = -1; 3089 w->wd = -1;
2973 infy_add (EV_A_ w); /* re-add, no matter what */ 3090 infy_add (EV_A_ w); /* re-add, no matter what */
2974 } 3091 }
2975 3092
2976 stat_timer_cb (EV_A_ &w->timer, 0); 3093 stat_timer_cb (EV_A_ &w->timer, 0);
2993 ofs += sizeof (struct inotify_event) + ev->len; 3110 ofs += sizeof (struct inotify_event) + ev->len;
2994 } 3111 }
2995} 3112}
2996 3113
2997inline_size void 3114inline_size void
2998check_2625 (EV_P) 3115ev_check_2625 (EV_P)
2999{ 3116{
3000 /* kernels < 2.6.25 are borked 3117 /* kernels < 2.6.25 are borked
3001 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3118 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3002 */ 3119 */
3003 struct utsname buf; 3120 if (ev_linux_version () < 0x020619)
3004 int major, minor, micro;
3005
3006 if (uname (&buf))
3007 return;
3008
3009 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
3010 return;
3011
3012 if (major < 2
3013 || (major == 2 && minor < 6)
3014 || (major == 2 && minor == 6 && micro < 25))
3015 return; 3121 return;
3016 3122
3017 fs_2625 = 1; 3123 fs_2625 = 1;
3018} 3124}
3019 3125
3034 if (fs_fd != -2) 3140 if (fs_fd != -2)
3035 return; 3141 return;
3036 3142
3037 fs_fd = -1; 3143 fs_fd = -1;
3038 3144
3039 check_2625 (EV_A); 3145 ev_check_2625 (EV_A);
3040 3146
3041 fs_fd = infy_newfd (); 3147 fs_fd = infy_newfd ();
3042 3148
3043 if (fs_fd >= 0) 3149 if (fs_fd >= 0)
3044 { 3150 {
3069 ev_io_set (&fs_w, fs_fd, EV_READ); 3175 ev_io_set (&fs_w, fs_fd, EV_READ);
3070 ev_io_start (EV_A_ &fs_w); 3176 ev_io_start (EV_A_ &fs_w);
3071 ev_unref (EV_A); 3177 ev_unref (EV_A);
3072 } 3178 }
3073 3179
3074 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3180 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3075 { 3181 {
3076 WL w_ = fs_hash [slot].head; 3182 WL w_ = fs_hash [slot].head;
3077 fs_hash [slot].head = 0; 3183 fs_hash [slot].head = 0;
3078 3184
3079 while (w_) 3185 while (w_)
3254 3360
3255 EV_FREQUENT_CHECK; 3361 EV_FREQUENT_CHECK;
3256} 3362}
3257#endif 3363#endif
3258 3364
3365#if EV_PREPARE_ENABLE
3259void 3366void
3260ev_prepare_start (EV_P_ ev_prepare *w) 3367ev_prepare_start (EV_P_ ev_prepare *w)
3261{ 3368{
3262 if (expect_false (ev_is_active (w))) 3369 if (expect_false (ev_is_active (w)))
3263 return; 3370 return;
3289 3396
3290 ev_stop (EV_A_ (W)w); 3397 ev_stop (EV_A_ (W)w);
3291 3398
3292 EV_FREQUENT_CHECK; 3399 EV_FREQUENT_CHECK;
3293} 3400}
3401#endif
3294 3402
3403#if EV_CHECK_ENABLE
3295void 3404void
3296ev_check_start (EV_P_ ev_check *w) 3405ev_check_start (EV_P_ ev_check *w)
3297{ 3406{
3298 if (expect_false (ev_is_active (w))) 3407 if (expect_false (ev_is_active (w)))
3299 return; 3408 return;
3325 3434
3326 ev_stop (EV_A_ (W)w); 3435 ev_stop (EV_A_ (W)w);
3327 3436
3328 EV_FREQUENT_CHECK; 3437 EV_FREQUENT_CHECK;
3329} 3438}
3439#endif
3330 3440
3331#if EV_EMBED_ENABLE 3441#if EV_EMBED_ENABLE
3332void noinline 3442void noinline
3333ev_embed_sweep (EV_P_ ev_embed *w) 3443ev_embed_sweep (EV_P_ ev_embed *w)
3334{ 3444{
3335 ev_loop (w->other, EVLOOP_NONBLOCK); 3445 ev_run (w->other, EVRUN_NOWAIT);
3336} 3446}
3337 3447
3338static void 3448static void
3339embed_io_cb (EV_P_ ev_io *io, int revents) 3449embed_io_cb (EV_P_ ev_io *io, int revents)
3340{ 3450{
3341 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3451 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3342 3452
3343 if (ev_cb (w)) 3453 if (ev_cb (w))
3344 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3454 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3345 else 3455 else
3346 ev_loop (w->other, EVLOOP_NONBLOCK); 3456 ev_run (w->other, EVRUN_NOWAIT);
3347} 3457}
3348 3458
3349static void 3459static void
3350embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3460embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3351{ 3461{
3355 EV_P = w->other; 3465 EV_P = w->other;
3356 3466
3357 while (fdchangecnt) 3467 while (fdchangecnt)
3358 { 3468 {
3359 fd_reify (EV_A); 3469 fd_reify (EV_A);
3360 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3470 ev_run (EV_A_ EVRUN_NOWAIT);
3361 } 3471 }
3362 } 3472 }
3363} 3473}
3364 3474
3365static void 3475static void
3371 3481
3372 { 3482 {
3373 EV_P = w->other; 3483 EV_P = w->other;
3374 3484
3375 ev_loop_fork (EV_A); 3485 ev_loop_fork (EV_A);
3376 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3486 ev_run (EV_A_ EVRUN_NOWAIT);
3377 } 3487 }
3378 3488
3379 ev_embed_start (EV_A_ w); 3489 ev_embed_start (EV_A_ w);
3380} 3490}
3381 3491
3473 3583
3474 EV_FREQUENT_CHECK; 3584 EV_FREQUENT_CHECK;
3475} 3585}
3476#endif 3586#endif
3477 3587
3478#if EV_ASYNC_ENABLE 3588#if EV_CLEANUP_ENABLE
3479void 3589void
3480ev_async_start (EV_P_ ev_async *w) 3590ev_cleanup_start (EV_P_ ev_cleanup *w)
3481{ 3591{
3482 if (expect_false (ev_is_active (w))) 3592 if (expect_false (ev_is_active (w)))
3483 return; 3593 return;
3594
3595 EV_FREQUENT_CHECK;
3596
3597 ev_start (EV_A_ (W)w, ++cleanupcnt);
3598 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3599 cleanups [cleanupcnt - 1] = w;
3600
3601 /* cleanup watchers should never keep a refcount on the loop */
3602 ev_unref (EV_A);
3603 EV_FREQUENT_CHECK;
3604}
3605
3606void
3607ev_cleanup_stop (EV_P_ ev_cleanup *w)
3608{
3609 clear_pending (EV_A_ (W)w);
3610 if (expect_false (!ev_is_active (w)))
3611 return;
3612
3613 EV_FREQUENT_CHECK;
3614 ev_ref (EV_A);
3615
3616 {
3617 int active = ev_active (w);
3618
3619 cleanups [active - 1] = cleanups [--cleanupcnt];
3620 ev_active (cleanups [active - 1]) = active;
3621 }
3622
3623 ev_stop (EV_A_ (W)w);
3624
3625 EV_FREQUENT_CHECK;
3626}
3627#endif
3628
3629#if EV_ASYNC_ENABLE
3630void
3631ev_async_start (EV_P_ ev_async *w)
3632{
3633 if (expect_false (ev_is_active (w)))
3634 return;
3635
3636 w->sent = 0;
3484 3637
3485 evpipe_init (EV_A); 3638 evpipe_init (EV_A);
3486 3639
3487 EV_FREQUENT_CHECK; 3640 EV_FREQUENT_CHECK;
3488 3641
3566{ 3719{
3567 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3720 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3568 3721
3569 if (expect_false (!once)) 3722 if (expect_false (!once))
3570 { 3723 {
3571 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3724 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3572 return; 3725 return;
3573 } 3726 }
3574 3727
3575 once->cb = cb; 3728 once->cb = cb;
3576 once->arg = arg; 3729 once->arg = arg;
3663 if (types & EV_ASYNC) 3816 if (types & EV_ASYNC)
3664 for (i = asynccnt; i--; ) 3817 for (i = asynccnt; i--; )
3665 cb (EV_A_ EV_ASYNC, asyncs [i]); 3818 cb (EV_A_ EV_ASYNC, asyncs [i]);
3666#endif 3819#endif
3667 3820
3821#if EV_PREPARE_ENABLE
3668 if (types & EV_PREPARE) 3822 if (types & EV_PREPARE)
3669 for (i = preparecnt; i--; ) 3823 for (i = preparecnt; i--; )
3670#if EV_EMBED_ENABLE 3824# if EV_EMBED_ENABLE
3671 if (ev_cb (prepares [i]) != embed_prepare_cb) 3825 if (ev_cb (prepares [i]) != embed_prepare_cb)
3672#endif 3826# endif
3673 cb (EV_A_ EV_PREPARE, prepares [i]); 3827 cb (EV_A_ EV_PREPARE, prepares [i]);
3828#endif
3674 3829
3830#if EV_CHECK_ENABLE
3675 if (types & EV_CHECK) 3831 if (types & EV_CHECK)
3676 for (i = checkcnt; i--; ) 3832 for (i = checkcnt; i--; )
3677 cb (EV_A_ EV_CHECK, checks [i]); 3833 cb (EV_A_ EV_CHECK, checks [i]);
3834#endif
3678 3835
3836#if EV_SIGNAL_ENABLE
3679 if (types & EV_SIGNAL) 3837 if (types & EV_SIGNAL)
3680 for (i = 0; i < EV_NSIG - 1; ++i) 3838 for (i = 0; i < EV_NSIG - 1; ++i)
3681 for (wl = signals [i].head; wl; ) 3839 for (wl = signals [i].head; wl; )
3682 { 3840 {
3683 wn = wl->next; 3841 wn = wl->next;
3684 cb (EV_A_ EV_SIGNAL, wl); 3842 cb (EV_A_ EV_SIGNAL, wl);
3685 wl = wn; 3843 wl = wn;
3686 } 3844 }
3845#endif
3687 3846
3847#if EV_CHILD_ENABLE
3688 if (types & EV_CHILD) 3848 if (types & EV_CHILD)
3689 for (i = EV_PID_HASHSIZE; i--; ) 3849 for (i = (EV_PID_HASHSIZE); i--; )
3690 for (wl = childs [i]; wl; ) 3850 for (wl = childs [i]; wl; )
3691 { 3851 {
3692 wn = wl->next; 3852 wn = wl->next;
3693 cb (EV_A_ EV_CHILD, wl); 3853 cb (EV_A_ EV_CHILD, wl);
3694 wl = wn; 3854 wl = wn;
3695 } 3855 }
3856#endif
3696/* EV_STAT 0x00001000 /* stat data changed */ 3857/* EV_STAT 0x00001000 /* stat data changed */
3697/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3858/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3698} 3859}
3699#endif 3860#endif
3700 3861
3701#if EV_MULTIPLICITY 3862#if EV_MULTIPLICITY
3702 #include "ev_wrap.h" 3863 #include "ev_wrap.h"
3703#endif 3864#endif
3704 3865
3705#ifdef __cplusplus 3866EV_CPP(})
3706}
3707#endif
3708 3867

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