… | |
… | |
117 | # define EV_USE_EPOLL 0 |
117 | # define EV_USE_EPOLL 0 |
118 | # endif |
118 | # endif |
119 | |
119 | |
120 | # if HAVE_LINUX_AIO_ABI_H |
120 | # if HAVE_LINUX_AIO_ABI_H |
121 | # ifndef EV_USE_LINUXAIO |
121 | # ifndef EV_USE_LINUXAIO |
122 | # define EV_USE_LINUXAIO EV_FEATURE_BACKENDS |
122 | # define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */ |
123 | # endif |
123 | # endif |
124 | # else |
124 | # else |
125 | # undef EV_USE_LINUXAIO |
125 | # undef EV_USE_LINUXAIO |
126 | # define EV_USE_LINUXAIO 0 |
126 | # define EV_USE_LINUXAIO 0 |
127 | # endif |
127 | # endif |
128 | |
128 | |
|
|
129 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
|
|
130 | # ifndef EV_USE_IOURING |
|
|
131 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
|
|
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_IOURING |
|
|
135 | # define EV_USE_IOURING 0 |
|
|
136 | # endif |
|
|
137 | |
129 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
130 | # ifndef EV_USE_KQUEUE |
139 | # ifndef EV_USE_KQUEUE |
131 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
132 | # endif |
141 | # endif |
133 | # else |
142 | # else |
… | |
… | |
168 | # endif |
177 | # endif |
169 | # else |
178 | # else |
170 | # undef EV_USE_EVENTFD |
179 | # undef EV_USE_EVENTFD |
171 | # define EV_USE_EVENTFD 0 |
180 | # define EV_USE_EVENTFD 0 |
172 | # endif |
181 | # endif |
173 | |
182 | |
|
|
183 | # if HAVE_SYS_TIMERFD_H |
|
|
184 | # ifndef EV_USE_TIMERFD |
|
|
185 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
186 | # endif |
|
|
187 | # else |
|
|
188 | # undef EV_USE_TIMERFD |
|
|
189 | # define EV_USE_TIMERFD 0 |
|
|
190 | # endif |
|
|
191 | |
174 | #endif |
192 | #endif |
175 | |
193 | |
176 | /* OS X, in its infinite idiocy, actually HARDCODES |
194 | /* OS X, in its infinite idiocy, actually HARDCODES |
177 | * a limit of 1024 into their select. Where people have brains, |
195 | * a limit of 1024 into their select. Where people have brains, |
178 | * OS X engineers apparently have a vacuum. Or maybe they were |
196 | * OS X engineers apparently have a vacuum. Or maybe they were |
… | |
… | |
326 | # define EV_USE_PORT 0 |
344 | # define EV_USE_PORT 0 |
327 | #endif |
345 | #endif |
328 | |
346 | |
329 | #ifndef EV_USE_LINUXAIO |
347 | #ifndef EV_USE_LINUXAIO |
330 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
348 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
331 | # define EV_USE_LINUXAIO 1 |
349 | # define EV_USE_LINUXAIO 0 /* was: 1, always off by default */ |
332 | # else |
350 | # else |
333 | # define EV_USE_LINUXAIO 0 |
351 | # define EV_USE_LINUXAIO 0 |
334 | # endif |
352 | # endif |
335 | #endif |
353 | #endif |
336 | |
354 | |
337 | #ifndef EV_USE_IOURING |
355 | #ifndef EV_USE_IOURING |
338 | # if __linux |
356 | # if __linux /* later checks might disable again */ |
339 | # define EV_USE_IOURING 0 |
357 | # define EV_USE_IOURING 1 |
340 | # else |
358 | # else |
341 | # define EV_USE_IOURING 0 |
359 | # define EV_USE_IOURING 0 |
342 | # endif |
360 | # endif |
343 | #endif |
361 | #endif |
344 | |
362 | |
… | |
… | |
369 | #ifndef EV_USE_SIGNALFD |
387 | #ifndef EV_USE_SIGNALFD |
370 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
388 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
371 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
389 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
372 | # else |
390 | # else |
373 | # define EV_USE_SIGNALFD 0 |
391 | # define EV_USE_SIGNALFD 0 |
|
|
392 | # endif |
|
|
393 | #endif |
|
|
394 | |
|
|
395 | #ifndef EV_USE_TIMERFD |
|
|
396 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)) |
|
|
397 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
398 | # else |
|
|
399 | # define EV_USE_TIMERFD 0 |
374 | # endif |
400 | # endif |
375 | #endif |
401 | #endif |
376 | |
402 | |
377 | #if 0 /* debugging */ |
403 | #if 0 /* debugging */ |
378 | # define EV_VERIFY 3 |
404 | # define EV_VERIFY 3 |
… | |
… | |
438 | #if !EV_STAT_ENABLE |
464 | #if !EV_STAT_ENABLE |
439 | # undef EV_USE_INOTIFY |
465 | # undef EV_USE_INOTIFY |
440 | # define EV_USE_INOTIFY 0 |
466 | # define EV_USE_INOTIFY 0 |
441 | #endif |
467 | #endif |
442 | |
468 | |
|
|
469 | #if __linux && EV_USE_IOURING |
|
|
470 | # include <linux/version.h> |
|
|
471 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
|
|
472 | # undef EV_USE_IOURING |
|
|
473 | # define EV_USE_IOURING 0 |
|
|
474 | # endif |
|
|
475 | #endif |
|
|
476 | |
443 | #if !EV_USE_NANOSLEEP |
477 | #if !EV_USE_NANOSLEEP |
444 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
478 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
445 | # if !defined _WIN32 && !defined __hpux |
479 | # if !defined _WIN32 && !defined __hpux |
446 | # include <sys/select.h> |
480 | # include <sys/select.h> |
447 | # endif |
481 | # endif |
448 | #endif |
482 | #endif |
449 | |
483 | |
450 | #if EV_USE_LINUXAIO |
484 | #if EV_USE_LINUXAIO |
451 | # include <sys/syscall.h> |
485 | # include <sys/syscall.h> |
452 | # if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */ |
486 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
487 | # define EV_NEED_SYSCALL 1 |
|
|
488 | # else |
453 | # undef EV_USE_LINUXAIO |
489 | # undef EV_USE_LINUXAIO |
454 | # define EV_USE_LINUXAIO 0 |
490 | # define EV_USE_LINUXAIO 0 |
455 | # else |
|
|
456 | # define EV_NEED_SYSCALL 1 |
|
|
457 | # endif |
491 | # endif |
458 | #endif |
492 | #endif |
459 | |
493 | |
460 | #if EV_USE_IOURING |
494 | #if EV_USE_IOURING |
461 | # include <sys/syscall.h> |
495 | # include <sys/syscall.h> |
462 | # if !__alpha && !SYS_io_uring_setup |
496 | # if !SYS_io_uring_setup && __linux && !__alpha |
463 | # define SYS_io_uring_setup 425 |
497 | # define SYS_io_uring_setup 425 |
464 | # define SYS_io_uring_enter 426 |
498 | # define SYS_io_uring_enter 426 |
465 | # define SYS_io_uring_wregister 427 |
499 | # define SYS_io_uring_wregister 427 |
466 | # endif |
500 | # endif |
467 | # if SYS_io_uring_setup |
501 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
468 | # define EV_NEED_SYSCALL 1 |
502 | # define EV_NEED_SYSCALL 1 |
469 | # else |
503 | # else |
470 | # undef EV_USE_IOURING |
504 | # undef EV_USE_IOURING |
471 | # define EV_USE_IOURING 0 |
505 | # define EV_USE_IOURING 0 |
472 | # endif |
506 | # endif |
… | |
… | |
481 | # define EV_USE_INOTIFY 0 |
515 | # define EV_USE_INOTIFY 0 |
482 | # endif |
516 | # endif |
483 | #endif |
517 | #endif |
484 | |
518 | |
485 | #if EV_USE_EVENTFD |
519 | #if EV_USE_EVENTFD |
486 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
520 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
487 | # include <stdint.h> |
521 | # include <stdint.h> |
488 | # ifndef EFD_NONBLOCK |
522 | # ifndef EFD_NONBLOCK |
489 | # define EFD_NONBLOCK O_NONBLOCK |
523 | # define EFD_NONBLOCK O_NONBLOCK |
490 | # endif |
524 | # endif |
491 | # ifndef EFD_CLOEXEC |
525 | # ifndef EFD_CLOEXEC |
… | |
… | |
497 | # endif |
531 | # endif |
498 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
532 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
499 | #endif |
533 | #endif |
500 | |
534 | |
501 | #if EV_USE_SIGNALFD |
535 | #if EV_USE_SIGNALFD |
502 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
536 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
503 | # include <stdint.h> |
537 | # include <stdint.h> |
504 | # ifndef SFD_NONBLOCK |
538 | # ifndef SFD_NONBLOCK |
505 | # define SFD_NONBLOCK O_NONBLOCK |
539 | # define SFD_NONBLOCK O_NONBLOCK |
506 | # endif |
540 | # endif |
507 | # ifndef SFD_CLOEXEC |
541 | # ifndef SFD_CLOEXEC |
… | |
… | |
509 | # define SFD_CLOEXEC O_CLOEXEC |
543 | # define SFD_CLOEXEC O_CLOEXEC |
510 | # else |
544 | # else |
511 | # define SFD_CLOEXEC 02000000 |
545 | # define SFD_CLOEXEC 02000000 |
512 | # endif |
546 | # endif |
513 | # endif |
547 | # endif |
514 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
548 | EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags); |
515 | |
549 | |
516 | struct signalfd_siginfo |
550 | struct signalfd_siginfo |
517 | { |
551 | { |
518 | uint32_t ssi_signo; |
552 | uint32_t ssi_signo; |
519 | char pad[128 - sizeof (uint32_t)]; |
553 | char pad[128 - sizeof (uint32_t)]; |
520 | }; |
554 | }; |
521 | #endif |
555 | #endif |
522 | |
556 | |
523 | /*****************************************************************************/ |
557 | /* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */ |
524 | |
558 | #if EV_USE_TIMERFD |
525 | #if EV_NEED_SYSCALL |
559 | # include <sys/timerfd.h> |
526 | |
560 | /* timerfd is only used for periodics */ |
527 | #include <sys/syscall.h> |
561 | # if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE |
528 | |
562 | # undef EV_USE_TIMERFD |
529 | /* |
563 | # define EV_USE_TIMERFD 0 |
530 | * define some syscall wrappers for common architectures |
|
|
531 | * this is mostly for nice looks during debugging, not performance. |
|
|
532 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
533 | * enough for linux aio. |
|
|
534 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
535 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
536 | */ |
|
|
537 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
538 | /* the costly errno access probably kills this for size optimisation */ |
|
|
539 | |
|
|
540 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5) \ |
|
|
541 | ({ \ |
|
|
542 | long res; \ |
|
|
543 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
544 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
545 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
546 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
547 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
548 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
549 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
550 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
551 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
552 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
553 | __asm__ __volatile__ ( \ |
|
|
554 | "syscall\n\t" \ |
|
|
555 | : "=a" (res) \ |
|
|
556 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
557 | : "cc", "r11", "cx", "memory"); \ |
|
|
558 | errno = -res; \ |
|
|
559 | res; \ |
|
|
560 | }) |
|
|
561 | |
|
|
562 | #endif |
564 | # endif |
563 | |
|
|
564 | #ifdef ev_syscall |
|
|
565 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0 |
|
|
566 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0) |
|
|
567 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0) |
|
|
568 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0) |
|
|
569 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0) |
|
|
570 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5) |
|
|
571 | #else |
|
|
572 | #define ev_syscall0(nr) syscall (nr) |
|
|
573 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
574 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
575 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
576 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
577 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
578 | #endif |
|
|
579 | |
|
|
580 | #endif |
565 | #endif |
581 | |
566 | |
582 | /*****************************************************************************/ |
567 | /*****************************************************************************/ |
583 | |
568 | |
584 | #if EV_VERIFY >= 3 |
569 | #if EV_VERIFY >= 3 |
… | |
… | |
592 | * This value is good at least till the year 4000. |
577 | * This value is good at least till the year 4000. |
593 | */ |
578 | */ |
594 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
579 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
595 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
580 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
596 | |
581 | |
597 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
582 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
598 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
583 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
599 | |
584 | |
|
|
585 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
586 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
587 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
588 | #define EV_TSTAMP_HUGE \ |
|
|
589 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
590 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
591 | : 2147483647.) \ |
|
|
592 | |
|
|
593 | #ifndef EV_TS_CONST |
|
|
594 | # define EV_TS_CONST(nv) nv |
|
|
595 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
596 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
600 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
597 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
601 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
598 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
599 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
600 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
601 | #endif |
602 | |
602 | |
603 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
603 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
604 | /* ECB.H BEGIN */ |
604 | /* ECB.H BEGIN */ |
605 | /* |
605 | /* |
606 | * libecb - http://software.schmorp.de/pkg/libecb |
606 | * libecb - http://software.schmorp.de/pkg/libecb |
… | |
… | |
1643 | # define inline_speed ecb_inline |
1643 | # define inline_speed ecb_inline |
1644 | #else |
1644 | #else |
1645 | # define inline_speed ecb_noinline static |
1645 | # define inline_speed ecb_noinline static |
1646 | #endif |
1646 | #endif |
1647 | |
1647 | |
|
|
1648 | /*****************************************************************************/ |
|
|
1649 | /* raw syscall wrappers */ |
|
|
1650 | |
|
|
1651 | #if EV_NEED_SYSCALL |
|
|
1652 | |
|
|
1653 | #include <sys/syscall.h> |
|
|
1654 | |
|
|
1655 | /* |
|
|
1656 | * define some syscall wrappers for common architectures |
|
|
1657 | * this is mostly for nice looks during debugging, not performance. |
|
|
1658 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1659 | * enough for linux aio. |
|
|
1660 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1661 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1662 | */ |
|
|
1663 | #if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE |
|
|
1664 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1665 | |
|
|
1666 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1667 | ({ \ |
|
|
1668 | long res; \ |
|
|
1669 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1670 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1671 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1672 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1673 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1674 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1675 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1676 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1677 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1678 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1679 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1680 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1681 | __asm__ __volatile__ ( \ |
|
|
1682 | "syscall\n\t" \ |
|
|
1683 | : "=a" (res) \ |
|
|
1684 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1685 | : "cc", "r11", "cx", "memory"); \ |
|
|
1686 | errno = -res; \ |
|
|
1687 | res; \ |
|
|
1688 | }) |
|
|
1689 | |
|
|
1690 | #endif |
|
|
1691 | |
|
|
1692 | #ifdef ev_syscall |
|
|
1693 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1694 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1695 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1696 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1697 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1698 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1699 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1700 | #else |
|
|
1701 | #define ev_syscall0(nr) syscall (nr) |
|
|
1702 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1703 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1704 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1705 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1706 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1707 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1708 | #endif |
|
|
1709 | |
|
|
1710 | #endif |
|
|
1711 | |
|
|
1712 | /*****************************************************************************/ |
|
|
1713 | |
1648 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1714 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1649 | |
1715 | |
1650 | #if EV_MINPRI == EV_MAXPRI |
1716 | #if EV_MINPRI == EV_MAXPRI |
1651 | # define ABSPRI(w) (((W)w), 0) |
1717 | # define ABSPRI(w) (((W)w), 0) |
1652 | #else |
1718 | #else |
… | |
… | |
1711 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1777 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1712 | #else |
1778 | #else |
1713 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1779 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1714 | #endif |
1780 | #endif |
1715 | |
1781 | |
|
|
1782 | /* special treatment for negative arguments */ |
|
|
1783 | if (ecb_expect_false (v < 0.)) |
|
|
1784 | { |
|
|
1785 | ev_tstamp f = -ev_floor (-v); |
|
|
1786 | |
|
|
1787 | return f - (f == v ? 0 : 1); |
|
|
1788 | } |
|
|
1789 | |
1716 | /* argument too large for an unsigned long? */ |
1790 | /* argument too large for an unsigned long? then reduce it */ |
1717 | if (ecb_expect_false (v >= shift)) |
1791 | if (ecb_expect_false (v >= shift)) |
1718 | { |
1792 | { |
1719 | ev_tstamp f; |
1793 | ev_tstamp f; |
1720 | |
1794 | |
1721 | if (v == v - 1.) |
1795 | if (v == v - 1.) |
1722 | return v; /* very large number */ |
1796 | return v; /* very large numbers are assumed to be integer */ |
1723 | |
1797 | |
1724 | f = shift * ev_floor (v * (1. / shift)); |
1798 | f = shift * ev_floor (v * (1. / shift)); |
1725 | return f + ev_floor (v - f); |
1799 | return f + ev_floor (v - f); |
1726 | } |
|
|
1727 | |
|
|
1728 | /* special treatment for negative args? */ |
|
|
1729 | if (ecb_expect_false (v < 0.)) |
|
|
1730 | { |
|
|
1731 | ev_tstamp f = -ev_floor (-v); |
|
|
1732 | |
|
|
1733 | return f - (f == v ? 0 : 1); |
|
|
1734 | } |
1800 | } |
1735 | |
1801 | |
1736 | /* fits into an unsigned long */ |
1802 | /* fits into an unsigned long */ |
1737 | return (unsigned long)v; |
1803 | return (unsigned long)v; |
1738 | } |
1804 | } |
… | |
… | |
1882 | { |
1948 | { |
1883 | WL head; |
1949 | WL head; |
1884 | unsigned char events; /* the events watched for */ |
1950 | unsigned char events; /* the events watched for */ |
1885 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1951 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1886 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1952 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1887 | unsigned char unused; |
1953 | unsigned char eflags; /* flags field for use by backends */ |
1888 | #if EV_USE_EPOLL |
1954 | #if EV_USE_EPOLL |
1889 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1955 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1890 | #endif |
1956 | #endif |
1891 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1957 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1892 | SOCKET handle; |
1958 | SOCKET handle; |
… | |
… | |
1946 | static struct ev_loop default_loop_struct; |
2012 | static struct ev_loop default_loop_struct; |
1947 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
2013 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1948 | |
2014 | |
1949 | #else |
2015 | #else |
1950 | |
2016 | |
1951 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
2017 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
1952 | #define VAR(name,decl) static decl; |
2018 | #define VAR(name,decl) static decl; |
1953 | #include "ev_vars.h" |
2019 | #include "ev_vars.h" |
1954 | #undef VAR |
2020 | #undef VAR |
1955 | |
2021 | |
1956 | static int ev_default_loop_ptr; |
2022 | static int ev_default_loop_ptr; |
… | |
… | |
1978 | #if EV_USE_REALTIME |
2044 | #if EV_USE_REALTIME |
1979 | if (ecb_expect_true (have_realtime)) |
2045 | if (ecb_expect_true (have_realtime)) |
1980 | { |
2046 | { |
1981 | struct timespec ts; |
2047 | struct timespec ts; |
1982 | clock_gettime (CLOCK_REALTIME, &ts); |
2048 | clock_gettime (CLOCK_REALTIME, &ts); |
1983 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2049 | return EV_TS_GET (ts); |
1984 | } |
2050 | } |
1985 | #endif |
2051 | #endif |
1986 | |
2052 | |
|
|
2053 | { |
1987 | struct timeval tv; |
2054 | struct timeval tv; |
1988 | gettimeofday (&tv, 0); |
2055 | gettimeofday (&tv, 0); |
1989 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2056 | return EV_TV_GET (tv); |
|
|
2057 | } |
1990 | } |
2058 | } |
1991 | #endif |
2059 | #endif |
1992 | |
2060 | |
1993 | inline_size ev_tstamp |
2061 | inline_size ev_tstamp |
1994 | get_clock (void) |
2062 | get_clock (void) |
… | |
… | |
1996 | #if EV_USE_MONOTONIC |
2064 | #if EV_USE_MONOTONIC |
1997 | if (ecb_expect_true (have_monotonic)) |
2065 | if (ecb_expect_true (have_monotonic)) |
1998 | { |
2066 | { |
1999 | struct timespec ts; |
2067 | struct timespec ts; |
2000 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2068 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2001 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2069 | return EV_TS_GET (ts); |
2002 | } |
2070 | } |
2003 | #endif |
2071 | #endif |
2004 | |
2072 | |
2005 | return ev_time (); |
2073 | return ev_time (); |
2006 | } |
2074 | } |
… | |
… | |
2014 | #endif |
2082 | #endif |
2015 | |
2083 | |
2016 | void |
2084 | void |
2017 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
2085 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
2018 | { |
2086 | { |
2019 | if (delay > 0.) |
2087 | if (delay > EV_TS_CONST (0.)) |
2020 | { |
2088 | { |
2021 | #if EV_USE_NANOSLEEP |
2089 | #if EV_USE_NANOSLEEP |
2022 | struct timespec ts; |
2090 | struct timespec ts; |
2023 | |
2091 | |
2024 | EV_TS_SET (ts, delay); |
2092 | EV_TS_SET (ts, delay); |
2025 | nanosleep (&ts, 0); |
2093 | nanosleep (&ts, 0); |
2026 | #elif defined _WIN32 |
2094 | #elif defined _WIN32 |
2027 | /* maybe this should round up, as ms is very low resolution */ |
2095 | /* maybe this should round up, as ms is very low resolution */ |
2028 | /* compared to select (µs) or nanosleep (ns) */ |
2096 | /* compared to select (µs) or nanosleep (ns) */ |
2029 | Sleep ((unsigned long)(delay * 1e3)); |
2097 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
2030 | #else |
2098 | #else |
2031 | struct timeval tv; |
2099 | struct timeval tv; |
2032 | |
2100 | |
2033 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2101 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2034 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2102 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
2194 | inline_size void |
2262 | inline_size void |
2195 | fd_reify (EV_P) |
2263 | fd_reify (EV_P) |
2196 | { |
2264 | { |
2197 | int i; |
2265 | int i; |
2198 | |
2266 | |
|
|
2267 | /* most backends do not modify the fdchanges list in backend_modfiy. |
|
|
2268 | * except io_uring, which has fixed-size buffers which might force us |
|
|
2269 | * to handle events in backend_modify, causing fdchangesd to be amended, |
|
|
2270 | * which could result in an endless loop. |
|
|
2271 | * to avoid this, we do not dynamically handle fds that were added |
|
|
2272 | * during fd_reify. that menas thast for those backends, fdchangecnt |
|
|
2273 | * might be non-zero during poll, which must cause them to not block. |
|
|
2274 | * to not put too much of a burden on other backends, this detail |
|
|
2275 | * needs to be handled in the backend. |
|
|
2276 | */ |
|
|
2277 | int changecnt = fdchangecnt; |
|
|
2278 | |
2199 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2279 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2200 | for (i = 0; i < fdchangecnt; ++i) |
2280 | for (i = 0; i < changecnt; ++i) |
2201 | { |
2281 | { |
2202 | int fd = fdchanges [i]; |
2282 | int fd = fdchanges [i]; |
2203 | ANFD *anfd = anfds + fd; |
2283 | ANFD *anfd = anfds + fd; |
2204 | |
2284 | |
2205 | if (anfd->reify & EV__IOFDSET && anfd->head) |
2285 | if (anfd->reify & EV__IOFDSET && anfd->head) |
… | |
… | |
2219 | } |
2299 | } |
2220 | } |
2300 | } |
2221 | } |
2301 | } |
2222 | #endif |
2302 | #endif |
2223 | |
2303 | |
2224 | for (i = 0; i < fdchangecnt; ++i) |
2304 | for (i = 0; i < changecnt; ++i) |
2225 | { |
2305 | { |
2226 | int fd = fdchanges [i]; |
2306 | int fd = fdchanges [i]; |
2227 | ANFD *anfd = anfds + fd; |
2307 | ANFD *anfd = anfds + fd; |
2228 | ev_io *w; |
2308 | ev_io *w; |
2229 | |
2309 | |
… | |
… | |
2245 | |
2325 | |
2246 | if (o_reify & EV__IOFDSET) |
2326 | if (o_reify & EV__IOFDSET) |
2247 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2327 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2248 | } |
2328 | } |
2249 | |
2329 | |
|
|
2330 | /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added. |
|
|
2331 | * this is a rare case (see beginning comment in this function), so we copy them to the |
|
|
2332 | * front and hope the backend handles this case. |
|
|
2333 | */ |
|
|
2334 | if (ecb_expect_false (fdchangecnt != changecnt)) |
|
|
2335 | memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges)); |
|
|
2336 | |
2250 | fdchangecnt = 0; |
2337 | fdchangecnt -= changecnt; |
2251 | } |
2338 | } |
2252 | |
2339 | |
2253 | /* something about the given fd changed */ |
2340 | /* something about the given fd changed */ |
2254 | inline_size |
2341 | inline_size |
2255 | void |
2342 | void |
… | |
… | |
2384 | |
2471 | |
2385 | /* find minimum child */ |
2472 | /* find minimum child */ |
2386 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
2473 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
2387 | { |
2474 | { |
2388 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2475 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2389 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2476 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2390 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2477 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2391 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2478 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2392 | } |
2479 | } |
2393 | else if (pos < E) |
2480 | else if (pos < E) |
2394 | { |
2481 | { |
2395 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2482 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2396 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2483 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2397 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2484 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2398 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2485 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2399 | } |
2486 | } |
2400 | else |
2487 | else |
2401 | break; |
2488 | break; |
2402 | |
2489 | |
2403 | if (ANHE_at (he) <= minat) |
2490 | if (ANHE_at (he) <= minat) |
… | |
… | |
2411 | |
2498 | |
2412 | heap [k] = he; |
2499 | heap [k] = he; |
2413 | ev_active (ANHE_w (he)) = k; |
2500 | ev_active (ANHE_w (he)) = k; |
2414 | } |
2501 | } |
2415 | |
2502 | |
2416 | #else /* 4HEAP */ |
2503 | #else /* not 4HEAP */ |
2417 | |
2504 | |
2418 | #define HEAP0 1 |
2505 | #define HEAP0 1 |
2419 | #define HPARENT(k) ((k) >> 1) |
2506 | #define HPARENT(k) ((k) >> 1) |
2420 | #define UPHEAP_DONE(p,k) (!(p)) |
2507 | #define UPHEAP_DONE(p,k) (!(p)) |
2421 | |
2508 | |
… | |
… | |
2807 | |
2894 | |
2808 | #endif |
2895 | #endif |
2809 | |
2896 | |
2810 | /*****************************************************************************/ |
2897 | /*****************************************************************************/ |
2811 | |
2898 | |
|
|
2899 | #if EV_USE_TIMERFD |
|
|
2900 | |
|
|
2901 | static void periodics_reschedule (EV_P); |
|
|
2902 | |
|
|
2903 | static void |
|
|
2904 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2905 | { |
|
|
2906 | struct itimerspec its = { 0 }; |
|
|
2907 | |
|
|
2908 | /* since we can't easily come zup with a (portable) maximum value of time_t, |
|
|
2909 | * we wake up once per month, which hopefully is rare enough to not |
|
|
2910 | * be a problem. */ |
|
|
2911 | its.it_value.tv_sec = ev_rt_now + 86400 * 30; |
|
|
2912 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
2913 | |
|
|
2914 | ev_rt_now = ev_time (); |
|
|
2915 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
2916 | /* but maybe in the future we want the full treatment. */ |
|
|
2917 | /* |
|
|
2918 | now_floor = EV_TS_CONST (0.); |
|
|
2919 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
2920 | */ |
|
|
2921 | periodics_reschedule (EV_A); |
|
|
2922 | } |
|
|
2923 | |
|
|
2924 | ecb_noinline ecb_cold |
|
|
2925 | static void |
|
|
2926 | evtimerfd_init (EV_P) |
|
|
2927 | { |
|
|
2928 | if (!ev_is_active (&timerfd_w)) |
|
|
2929 | { |
|
|
2930 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
2931 | |
|
|
2932 | if (timerfd >= 0) |
|
|
2933 | { |
|
|
2934 | fd_intern (timerfd); /* just to be sure */ |
|
|
2935 | |
|
|
2936 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
2937 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
2938 | ev_io_start (EV_A_ &timerfd_w); |
|
|
2939 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2940 | |
|
|
2941 | /* (re-) arm timer */ |
|
|
2942 | timerfdcb (EV_A_ 0, 0); |
|
|
2943 | } |
|
|
2944 | } |
|
|
2945 | } |
|
|
2946 | |
|
|
2947 | #endif |
|
|
2948 | |
|
|
2949 | /*****************************************************************************/ |
|
|
2950 | |
2812 | #if EV_USE_IOCP |
2951 | #if EV_USE_IOCP |
2813 | # include "ev_iocp.c" |
2952 | # include "ev_iocp.c" |
2814 | #endif |
2953 | #endif |
2815 | #if EV_USE_PORT |
2954 | #if EV_USE_PORT |
2816 | # include "ev_port.c" |
2955 | # include "ev_port.c" |
… | |
… | |
2862 | unsigned int |
3001 | unsigned int |
2863 | ev_supported_backends (void) EV_NOEXCEPT |
3002 | ev_supported_backends (void) EV_NOEXCEPT |
2864 | { |
3003 | { |
2865 | unsigned int flags = 0; |
3004 | unsigned int flags = 0; |
2866 | |
3005 | |
2867 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
3006 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2868 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
3007 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2869 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
3008 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2870 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
3009 | if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO; |
2871 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
3010 | if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */ |
2872 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
3011 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2873 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
3012 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2874 | |
3013 | |
2875 | return flags; |
3014 | return flags; |
2876 | } |
3015 | } |
2877 | |
3016 | |
2878 | ecb_cold |
3017 | ecb_cold |
2879 | unsigned int |
3018 | unsigned int |
… | |
… | |
2909 | |
3048 | |
2910 | ecb_cold |
3049 | ecb_cold |
2911 | unsigned int |
3050 | unsigned int |
2912 | ev_embeddable_backends (void) EV_NOEXCEPT |
3051 | ev_embeddable_backends (void) EV_NOEXCEPT |
2913 | { |
3052 | { |
2914 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3053 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING; |
2915 | |
3054 | |
2916 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3055 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2917 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
3056 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2918 | flags &= ~EVBACKEND_EPOLL; |
3057 | flags &= ~EVBACKEND_EPOLL; |
|
|
3058 | |
|
|
3059 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
2919 | |
3060 | |
2920 | return flags; |
3061 | return flags; |
2921 | } |
3062 | } |
2922 | |
3063 | |
2923 | unsigned int |
3064 | unsigned int |
… | |
… | |
3041 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3182 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3042 | #endif |
3183 | #endif |
3043 | #if EV_USE_SIGNALFD |
3184 | #if EV_USE_SIGNALFD |
3044 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3185 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3045 | #endif |
3186 | #endif |
|
|
3187 | #if EV_USE_TIMERFD |
|
|
3188 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3189 | #endif |
3046 | |
3190 | |
3047 | if (!(flags & EVBACKEND_MASK)) |
3191 | if (!(flags & EVBACKEND_MASK)) |
3048 | flags |= ev_recommended_backends (); |
3192 | flags |= ev_recommended_backends (); |
3049 | |
3193 | |
3050 | #if EV_USE_IOCP |
3194 | #if EV_USE_IOCP |
… | |
… | |
3121 | } |
3265 | } |
3122 | |
3266 | |
3123 | #if EV_USE_SIGNALFD |
3267 | #if EV_USE_SIGNALFD |
3124 | if (ev_is_active (&sigfd_w)) |
3268 | if (ev_is_active (&sigfd_w)) |
3125 | close (sigfd); |
3269 | close (sigfd); |
|
|
3270 | #endif |
|
|
3271 | |
|
|
3272 | #if EV_USE_TIMERFD |
|
|
3273 | if (ev_is_active (&timerfd_w)) |
|
|
3274 | close (timerfd); |
3126 | #endif |
3275 | #endif |
3127 | |
3276 | |
3128 | #if EV_USE_INOTIFY |
3277 | #if EV_USE_INOTIFY |
3129 | if (fs_fd >= 0) |
3278 | if (fs_fd >= 0) |
3130 | close (fs_fd); |
3279 | close (fs_fd); |
… | |
… | |
3223 | #endif |
3372 | #endif |
3224 | #if EV_USE_INOTIFY |
3373 | #if EV_USE_INOTIFY |
3225 | infy_fork (EV_A); |
3374 | infy_fork (EV_A); |
3226 | #endif |
3375 | #endif |
3227 | |
3376 | |
|
|
3377 | if (postfork != 2) |
|
|
3378 | { |
|
|
3379 | #if EV_USE_SIGNALFD |
|
|
3380 | /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */ |
|
|
3381 | #endif |
|
|
3382 | |
|
|
3383 | #if EV_USE_TIMERFD |
|
|
3384 | if (ev_is_active (&timerfd_w)) |
|
|
3385 | { |
|
|
3386 | ev_ref (EV_A); |
|
|
3387 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3388 | |
|
|
3389 | close (timerfd); |
|
|
3390 | timerfd = -2; |
|
|
3391 | |
|
|
3392 | evtimerfd_init (EV_A); |
|
|
3393 | /* reschedule periodics, in case we missed something */ |
|
|
3394 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3395 | } |
|
|
3396 | #endif |
|
|
3397 | |
3228 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3398 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3229 | if (ev_is_active (&pipe_w) && postfork != 2) |
3399 | if (ev_is_active (&pipe_w)) |
3230 | { |
3400 | { |
3231 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3401 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3232 | |
3402 | |
3233 | ev_ref (EV_A); |
3403 | ev_ref (EV_A); |
3234 | ev_io_stop (EV_A_ &pipe_w); |
3404 | ev_io_stop (EV_A_ &pipe_w); |
3235 | |
3405 | |
3236 | if (evpipe [0] >= 0) |
3406 | if (evpipe [0] >= 0) |
3237 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3407 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3238 | |
3408 | |
3239 | evpipe_init (EV_A); |
3409 | evpipe_init (EV_A); |
3240 | /* iterate over everything, in case we missed something before */ |
3410 | /* iterate over everything, in case we missed something before */ |
3241 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3411 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3412 | } |
|
|
3413 | #endif |
3242 | } |
3414 | } |
3243 | #endif |
|
|
3244 | |
3415 | |
3245 | postfork = 0; |
3416 | postfork = 0; |
3246 | } |
3417 | } |
3247 | |
3418 | |
3248 | #if EV_MULTIPLICITY |
3419 | #if EV_MULTIPLICITY |
… | |
… | |
3518 | { |
3689 | { |
3519 | ev_at (w) += w->repeat; |
3690 | ev_at (w) += w->repeat; |
3520 | if (ev_at (w) < mn_now) |
3691 | if (ev_at (w) < mn_now) |
3521 | ev_at (w) = mn_now; |
3692 | ev_at (w) = mn_now; |
3522 | |
3693 | |
3523 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3694 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
3524 | |
3695 | |
3525 | ANHE_at_cache (timers [HEAP0]); |
3696 | ANHE_at_cache (timers [HEAP0]); |
3526 | downheap (timers, timercnt, HEAP0); |
3697 | downheap (timers, timercnt, HEAP0); |
3527 | } |
3698 | } |
3528 | else |
3699 | else |
… | |
… | |
3659 | |
3830 | |
3660 | mn_now = get_clock (); |
3831 | mn_now = get_clock (); |
3661 | |
3832 | |
3662 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3833 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3663 | /* interpolate in the meantime */ |
3834 | /* interpolate in the meantime */ |
3664 | if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3835 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
3665 | { |
3836 | { |
3666 | ev_rt_now = rtmn_diff + mn_now; |
3837 | ev_rt_now = rtmn_diff + mn_now; |
3667 | return; |
3838 | return; |
3668 | } |
3839 | } |
3669 | |
3840 | |
… | |
… | |
3683 | ev_tstamp diff; |
3854 | ev_tstamp diff; |
3684 | rtmn_diff = ev_rt_now - mn_now; |
3855 | rtmn_diff = ev_rt_now - mn_now; |
3685 | |
3856 | |
3686 | diff = odiff - rtmn_diff; |
3857 | diff = odiff - rtmn_diff; |
3687 | |
3858 | |
3688 | if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3859 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
3689 | return; /* all is well */ |
3860 | return; /* all is well */ |
3690 | |
3861 | |
3691 | ev_rt_now = ev_time (); |
3862 | ev_rt_now = ev_time (); |
3692 | mn_now = get_clock (); |
3863 | mn_now = get_clock (); |
3693 | now_floor = mn_now; |
3864 | now_floor = mn_now; |
… | |
… | |
3702 | else |
3873 | else |
3703 | #endif |
3874 | #endif |
3704 | { |
3875 | { |
3705 | ev_rt_now = ev_time (); |
3876 | ev_rt_now = ev_time (); |
3706 | |
3877 | |
3707 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3878 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
3708 | { |
3879 | { |
3709 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3880 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3710 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3881 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3711 | #if EV_PERIODIC_ENABLE |
3882 | #if EV_PERIODIC_ENABLE |
3712 | periodics_reschedule (EV_A); |
3883 | periodics_reschedule (EV_A); |
… | |
… | |
3781 | |
3952 | |
3782 | /* remember old timestamp for io_blocktime calculation */ |
3953 | /* remember old timestamp for io_blocktime calculation */ |
3783 | ev_tstamp prev_mn_now = mn_now; |
3954 | ev_tstamp prev_mn_now = mn_now; |
3784 | |
3955 | |
3785 | /* update time to cancel out callback processing overhead */ |
3956 | /* update time to cancel out callback processing overhead */ |
3786 | time_update (EV_A_ 1e100); |
3957 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
3787 | |
3958 | |
3788 | /* from now on, we want a pipe-wake-up */ |
3959 | /* from now on, we want a pipe-wake-up */ |
3789 | pipe_write_wanted = 1; |
3960 | pipe_write_wanted = 1; |
3790 | |
3961 | |
3791 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3962 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3792 | |
3963 | |
3793 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3964 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3794 | { |
3965 | { |
3795 | waittime = MAX_BLOCKTIME; |
3966 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
3796 | |
3967 | |
3797 | if (timercnt) |
3968 | if (timercnt) |
3798 | { |
3969 | { |
3799 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3970 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3800 | if (waittime > to) waittime = to; |
3971 | if (waittime > to) waittime = to; |
… | |
… | |
3810 | |
3981 | |
3811 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3982 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3812 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3983 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3813 | waittime = timeout_blocktime; |
3984 | waittime = timeout_blocktime; |
3814 | |
3985 | |
3815 | /* at this point, we NEED to wait, so we have to ensure */ |
3986 | /* now there are two more special cases left, either we have |
3816 | /* to pass a minimum nonzero value to the backend */ |
3987 | * already-expired timers, so we should not sleep, or we have timers |
|
|
3988 | * that expire very soon, in which case we need to wait for a minimum |
|
|
3989 | * amount of time for some event loop backends. |
|
|
3990 | */ |
3817 | if (ecb_expect_false (waittime < backend_mintime)) |
3991 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3992 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
3993 | ? EV_TS_CONST (0.) |
3818 | waittime = backend_mintime; |
3994 | : backend_mintime; |
3819 | |
3995 | |
3820 | /* extra check because io_blocktime is commonly 0 */ |
3996 | /* extra check because io_blocktime is commonly 0 */ |
3821 | if (ecb_expect_false (io_blocktime)) |
3997 | if (ecb_expect_false (io_blocktime)) |
3822 | { |
3998 | { |
3823 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3999 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3824 | |
4000 | |
3825 | if (sleeptime > waittime - backend_mintime) |
4001 | if (sleeptime > waittime - backend_mintime) |
3826 | sleeptime = waittime - backend_mintime; |
4002 | sleeptime = waittime - backend_mintime; |
3827 | |
4003 | |
3828 | if (ecb_expect_true (sleeptime > 0.)) |
4004 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
3829 | { |
4005 | { |
3830 | ev_sleep (sleeptime); |
4006 | ev_sleep (sleeptime); |
3831 | waittime -= sleeptime; |
4007 | waittime -= sleeptime; |
3832 | } |
4008 | } |
3833 | } |
4009 | } |
… | |
… | |
3907 | } |
4083 | } |
3908 | |
4084 | |
3909 | void |
4085 | void |
3910 | ev_now_update (EV_P) EV_NOEXCEPT |
4086 | ev_now_update (EV_P) EV_NOEXCEPT |
3911 | { |
4087 | { |
3912 | time_update (EV_A_ 1e100); |
4088 | time_update (EV_A_ EV_TSTAMP_HUGE); |
3913 | } |
4089 | } |
3914 | |
4090 | |
3915 | void |
4091 | void |
3916 | ev_suspend (EV_P) EV_NOEXCEPT |
4092 | ev_suspend (EV_P) EV_NOEXCEPT |
3917 | { |
4093 | { |
… | |
… | |
4148 | } |
4324 | } |
4149 | |
4325 | |
4150 | ev_tstamp |
4326 | ev_tstamp |
4151 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
4327 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
4152 | { |
4328 | { |
4153 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4329 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
4154 | } |
4330 | } |
4155 | |
4331 | |
4156 | #if EV_PERIODIC_ENABLE |
4332 | #if EV_PERIODIC_ENABLE |
4157 | ecb_noinline |
4333 | ecb_noinline |
4158 | void |
4334 | void |
4159 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4335 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
4160 | { |
4336 | { |
4161 | if (ecb_expect_false (ev_is_active (w))) |
4337 | if (ecb_expect_false (ev_is_active (w))) |
4162 | return; |
4338 | return; |
|
|
4339 | |
|
|
4340 | #if EV_USE_TIMERFD |
|
|
4341 | if (timerfd == -2) |
|
|
4342 | evtimerfd_init (EV_A); |
|
|
4343 | #endif |
4163 | |
4344 | |
4164 | if (w->reschedule_cb) |
4345 | if (w->reschedule_cb) |
4165 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4346 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4166 | else if (w->interval) |
4347 | else if (w->interval) |
4167 | { |
4348 | { |
… | |
… | |
4909 | ev_run (EV_A_ EVRUN_NOWAIT); |
5090 | ev_run (EV_A_ EVRUN_NOWAIT); |
4910 | } |
5091 | } |
4911 | } |
5092 | } |
4912 | } |
5093 | } |
4913 | |
5094 | |
|
|
5095 | #if EV_FORK_ENABLE |
4914 | static void |
5096 | static void |
4915 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5097 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
4916 | { |
5098 | { |
4917 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5099 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4918 | |
5100 | |
… | |
… | |
4925 | ev_run (EV_A_ EVRUN_NOWAIT); |
5107 | ev_run (EV_A_ EVRUN_NOWAIT); |
4926 | } |
5108 | } |
4927 | |
5109 | |
4928 | ev_embed_start (EV_A_ w); |
5110 | ev_embed_start (EV_A_ w); |
4929 | } |
5111 | } |
|
|
5112 | #endif |
4930 | |
5113 | |
4931 | #if 0 |
5114 | #if 0 |
4932 | static void |
5115 | static void |
4933 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5116 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4934 | { |
5117 | { |
… | |
… | |
4955 | |
5138 | |
4956 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5139 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4957 | ev_set_priority (&w->prepare, EV_MINPRI); |
5140 | ev_set_priority (&w->prepare, EV_MINPRI); |
4958 | ev_prepare_start (EV_A_ &w->prepare); |
5141 | ev_prepare_start (EV_A_ &w->prepare); |
4959 | |
5142 | |
|
|
5143 | #if EV_FORK_ENABLE |
4960 | ev_fork_init (&w->fork, embed_fork_cb); |
5144 | ev_fork_init (&w->fork, embed_fork_cb); |
4961 | ev_fork_start (EV_A_ &w->fork); |
5145 | ev_fork_start (EV_A_ &w->fork); |
|
|
5146 | #endif |
4962 | |
5147 | |
4963 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5148 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4964 | |
5149 | |
4965 | ev_start (EV_A_ (W)w, 1); |
5150 | ev_start (EV_A_ (W)w, 1); |
4966 | |
5151 | |
… | |
… | |
4976 | |
5161 | |
4977 | EV_FREQUENT_CHECK; |
5162 | EV_FREQUENT_CHECK; |
4978 | |
5163 | |
4979 | ev_io_stop (EV_A_ &w->io); |
5164 | ev_io_stop (EV_A_ &w->io); |
4980 | ev_prepare_stop (EV_A_ &w->prepare); |
5165 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5166 | #if EV_FORK_ENABLE |
4981 | ev_fork_stop (EV_A_ &w->fork); |
5167 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5168 | #endif |
4982 | |
5169 | |
4983 | ev_stop (EV_A_ (W)w); |
5170 | ev_stop (EV_A_ (W)w); |
4984 | |
5171 | |
4985 | EV_FREQUENT_CHECK; |
5172 | EV_FREQUENT_CHECK; |
4986 | } |
5173 | } |