1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
48 | #if HAVE_FLOOR |
48 | # if HAVE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
50 | # define EV_USE_FLOOR 1 |
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
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|
53 | |
53 | |
54 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
57 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
241 | #elif defined SIGARRAYSIZE |
241 | #elif defined SIGARRAYSIZE |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
243 | #elif defined _sys_nsig |
243 | #elif defined _sys_nsig |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
245 | #else |
245 | #else |
246 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
247 | /* to make it compile regardless, just remove the above line, */ |
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|
248 | /* but consider reporting it, too! :) */ |
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249 | # define EV_NSIG 65 |
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|
250 | #endif |
247 | #endif |
251 | |
248 | |
252 | #ifndef EV_USE_FLOOR |
249 | #ifndef EV_USE_FLOOR |
253 | # define EV_USE_FLOOR 0 |
250 | # define EV_USE_FLOOR 0 |
254 | #endif |
251 | #endif |
255 | |
252 | |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
257 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
259 | # else |
256 | # else |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
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|
258 | # endif |
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|
259 | #endif |
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260 | |
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|
261 | #if !(_POSIX_TIMERS > 0) |
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|
262 | # ifndef EV_USE_MONOTONIC |
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|
263 | # define EV_USE_MONOTONIC 0 |
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|
264 | # endif |
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|
265 | # ifndef EV_USE_REALTIME |
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|
266 | # define EV_USE_REALTIME 0 |
261 | # endif |
267 | # endif |
262 | #endif |
268 | #endif |
263 | |
269 | |
264 | #ifndef EV_USE_MONOTONIC |
270 | #ifndef EV_USE_MONOTONIC |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
271 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
… | |
… | |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
361 | # define EV_USE_4HEAP EV_FEATURE_DATA |
356 | #endif |
362 | #endif |
357 | |
363 | |
358 | #ifndef EV_HEAP_CACHE_AT |
364 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
365 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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366 | #endif |
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367 | |
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368 | #ifdef ANDROID |
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|
369 | /* supposedly, android doesn't typedef fd_mask */ |
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370 | # undef EV_USE_SELECT |
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371 | # define EV_USE_SELECT 0 |
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372 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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373 | # undef EV_USE_CLOCK_SYSCALL |
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374 | # define EV_USE_CLOCK_SYSCALL 0 |
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375 | #endif |
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376 | |
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|
377 | /* aix's poll.h seems to cause lots of trouble */ |
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378 | #ifdef _AIX |
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379 | /* AIX has a completely broken poll.h header */ |
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|
380 | # undef EV_USE_POLL |
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381 | # define EV_USE_POLL 0 |
360 | #endif |
382 | #endif |
361 | |
383 | |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
384 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
385 | /* which makes programs even slower. might work on other unices, too. */ |
364 | #if EV_USE_CLOCK_SYSCALL |
386 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
372 | # define EV_USE_CLOCK_SYSCALL 0 |
394 | # define EV_USE_CLOCK_SYSCALL 0 |
373 | # endif |
395 | # endif |
374 | #endif |
396 | #endif |
375 | |
397 | |
376 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
398 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
377 | |
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378 | #ifdef _AIX |
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379 | /* AIX has a completely broken poll.h header */ |
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380 | # undef EV_USE_POLL |
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381 | # define EV_USE_POLL 0 |
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382 | #endif |
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383 | |
399 | |
384 | #ifndef CLOCK_MONOTONIC |
400 | #ifndef CLOCK_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
401 | # undef EV_USE_MONOTONIC |
386 | # define EV_USE_MONOTONIC 0 |
402 | # define EV_USE_MONOTONIC 0 |
387 | #endif |
403 | #endif |
… | |
… | |
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
491 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
476 | /* ECB.H BEGIN */ |
492 | /* ECB.H BEGIN */ |
477 | /* |
493 | /* |
478 | * libecb - http://software.schmorp.de/pkg/libecb |
494 | * libecb - http://software.schmorp.de/pkg/libecb |
479 | * |
495 | * |
480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
496 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
481 | * Copyright (©) 2011 Emanuele Giaquinta |
497 | * Copyright (©) 2011 Emanuele Giaquinta |
482 | * All rights reserved. |
498 | * All rights reserved. |
483 | * |
499 | * |
484 | * Redistribution and use in source and binary forms, with or without modifica- |
500 | * Redistribution and use in source and binary forms, with or without modifica- |
485 | * tion, are permitted provided that the following conditions are met: |
501 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
515 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
516 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
517 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
518 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
519 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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520 | * |
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521 | * Alternatively, the contents of this file may be used under the terms of |
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522 | * the GNU General Public License ("GPL") version 2 or any later version, |
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523 | * in which case the provisions of the GPL are applicable instead of |
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524 | * the above. If you wish to allow the use of your version of this file |
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|
525 | * only under the terms of the GPL and not to allow others to use your |
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|
526 | * version of this file under the BSD license, indicate your decision |
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527 | * by deleting the provisions above and replace them with the notice |
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528 | * and other provisions required by the GPL. If you do not delete the |
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529 | * provisions above, a recipient may use your version of this file under |
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530 | * either the BSD or the GPL. |
504 | */ |
531 | */ |
505 | |
532 | |
506 | #ifndef ECB_H |
533 | #ifndef ECB_H |
507 | #define ECB_H |
534 | #define ECB_H |
508 | |
535 | |
509 | /* 16 bits major, 16 bits minor */ |
536 | /* 16 bits major, 16 bits minor */ |
510 | #define ECB_VERSION 0x00010002 |
537 | #define ECB_VERSION 0x00010003 |
511 | |
538 | |
512 | #ifdef _WIN32 |
539 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
540 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
541 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
542 | typedef signed short int16_t; |
… | |
… | |
539 | #else |
566 | #else |
540 | #define ECB_PTRSIZE 4 |
567 | #define ECB_PTRSIZE 4 |
541 | #endif |
568 | #endif |
542 | #endif |
569 | #endif |
543 | |
570 | |
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571 | /* work around x32 idiocy by defining proper macros */ |
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572 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
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573 | #if _ILP32 |
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574 | #define ECB_AMD64_X32 1 |
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575 | #else |
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576 | #define ECB_AMD64 1 |
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577 | #endif |
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578 | #endif |
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579 | |
544 | /* many compilers define _GNUC_ to some versions but then only implement |
580 | /* many compilers define _GNUC_ to some versions but then only implement |
545 | * what their idiot authors think are the "more important" extensions, |
581 | * what their idiot authors think are the "more important" extensions, |
546 | * causing enormous grief in return for some better fake benchmark numbers. |
582 | * causing enormous grief in return for some better fake benchmark numbers. |
547 | * or so. |
583 | * or so. |
548 | * we try to detect these and simply assume they are not gcc - if they have |
584 | * we try to detect these and simply assume they are not gcc - if they have |
… | |
… | |
554 | #else |
590 | #else |
555 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
591 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
556 | #endif |
592 | #endif |
557 | #endif |
593 | #endif |
558 | |
594 | |
559 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
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560 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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561 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
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562 | #define ECB_CPP (__cplusplus+0) |
595 | #define ECB_CPP (__cplusplus+0) |
563 | #define ECB_CPP11 (__cplusplus >= 201103L) |
596 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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597 | |
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598 | #if ECB_CPP |
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599 | #define ECB_C 0 |
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600 | #define ECB_STDC_VERSION 0 |
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601 | #else |
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602 | #define ECB_C 1 |
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603 | #define ECB_STDC_VERSION __STDC_VERSION__ |
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604 | #endif |
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605 | |
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606 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
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607 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
564 | |
608 | |
565 | #if ECB_CPP |
609 | #if ECB_CPP |
566 | #define ECB_EXTERN_C extern "C" |
610 | #define ECB_EXTERN_C extern "C" |
567 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
611 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
568 | #define ECB_EXTERN_C_END } |
612 | #define ECB_EXTERN_C_END } |
… | |
… | |
601 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
645 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
646 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
603 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
647 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
604 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
648 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
649 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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650 | #elif __aarch64__ |
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651 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
606 | #elif __sparc || __sparc__ |
652 | #elif (__sparc || __sparc__) && !__sparcv8 |
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
653 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
654 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
655 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
610 | #elif defined __s390__ || defined __s390x__ |
656 | #elif defined __s390__ || defined __s390x__ |
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
657 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
612 | #elif defined __mips__ |
658 | #elif defined __mips__ |
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659 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
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660 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
613 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
661 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
614 | #elif defined __alpha__ |
662 | #elif defined __alpha__ |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
616 | #elif defined __hppa__ |
664 | #elif defined __hppa__ |
617 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
665 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
618 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
666 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
619 | #elif defined __ia64__ |
667 | #elif defined __ia64__ |
620 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
668 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
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669 | #elif defined __m68k__ |
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670 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
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671 | #elif defined __m88k__ |
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672 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
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673 | #elif defined __sh__ |
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674 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
621 | #endif |
675 | #endif |
622 | #endif |
676 | #endif |
623 | #endif |
677 | #endif |
624 | |
678 | |
625 | #ifndef ECB_MEMORY_FENCE |
679 | #ifndef ECB_MEMORY_FENCE |
626 | #if ECB_GCC_VERSION(4,7) |
680 | #if ECB_GCC_VERSION(4,7) |
627 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
681 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
628 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
682 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
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683 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
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|
684 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
629 | |
685 | |
630 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
686 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
631 | * without risking compile time errors with other compilers. We *could* |
687 | * without risking compile time errors with other compilers. We *could* |
632 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
688 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
633 | * around this shit time and again. |
689 | * around this shit time and again. |
634 | * #elif defined __clang && __has_feature (cxx_atomic) |
690 | * #elif defined __clang && __has_feature (cxx_atomic) |
635 | * // see comment below (stdatomic.h) about the C11 memory model. |
691 | * // see comment below (stdatomic.h) about the C11 memory model. |
636 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
692 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
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693 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
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694 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
637 | */ |
695 | */ |
638 | |
696 | |
639 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
697 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
640 | #define ECB_MEMORY_FENCE __sync_synchronize () |
698 | #define ECB_MEMORY_FENCE __sync_synchronize () |
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699 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
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700 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
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|
701 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
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702 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
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|
703 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
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|
704 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
641 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
705 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
642 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
706 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
643 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
707 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
644 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
708 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
645 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
709 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
665 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
729 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
666 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
730 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
667 | /* for most usages, or gcc and clang have a bug */ |
731 | /* for most usages, or gcc and clang have a bug */ |
668 | /* I *currently* lean towards the latter, and inefficiently implement */ |
732 | /* I *currently* lean towards the latter, and inefficiently implement */ |
669 | /* all three of ecb's fences as a seq_cst fence */ |
733 | /* all three of ecb's fences as a seq_cst fence */ |
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734 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
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735 | /* for all __atomic_thread_fence's except seq_cst */ |
670 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
736 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
671 | #endif |
737 | #endif |
672 | #endif |
738 | #endif |
673 | |
739 | |
674 | #ifndef ECB_MEMORY_FENCE |
740 | #ifndef ECB_MEMORY_FENCE |
… | |
… | |
731 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
797 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
732 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
798 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
733 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
799 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
734 | #else |
800 | #else |
735 | #define ecb_attribute(attrlist) |
801 | #define ecb_attribute(attrlist) |
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802 | |
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803 | /* possible C11 impl for integral types |
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804 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
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805 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
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806 | |
736 | #define ecb_is_constant(expr) 0 |
807 | #define ecb_is_constant(expr) 0 |
737 | #define ecb_expect(expr,value) (expr) |
808 | #define ecb_expect(expr,value) (expr) |
738 | #define ecb_prefetch(addr,rw,locality) |
809 | #define ecb_prefetch(addr,rw,locality) |
739 | #endif |
810 | #endif |
740 | |
811 | |
… | |
… | |
743 | #define ecb_decltype(x) __decltype(x) |
814 | #define ecb_decltype(x) __decltype(x) |
744 | #elif ECB_GCC_VERSION(3,0) |
815 | #elif ECB_GCC_VERSION(3,0) |
745 | #define ecb_decltype(x) __typeof(x) |
816 | #define ecb_decltype(x) __typeof(x) |
746 | #endif |
817 | #endif |
747 | |
818 | |
|
|
819 | #if _MSC_VER >= 1300 |
|
|
820 | #define ecb_deprecated __declspec(deprecated) |
|
|
821 | #else |
|
|
822 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
823 | #endif |
|
|
824 | |
748 | #define ecb_noinline ecb_attribute ((__noinline__)) |
825 | #define ecb_noinline ecb_attribute ((__noinline__)) |
749 | #define ecb_unused ecb_attribute ((__unused__)) |
826 | #define ecb_unused ecb_attribute ((__unused__)) |
750 | #define ecb_const ecb_attribute ((__const__)) |
827 | #define ecb_const ecb_attribute ((__const__)) |
751 | #define ecb_pure ecb_attribute ((__pure__)) |
828 | #define ecb_pure ecb_attribute ((__pure__)) |
752 | |
829 | |
|
|
830 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ |
753 | #if ECB_C11 |
831 | #if ECB_C11 |
754 | #define ecb_noreturn _Noreturn |
832 | #define ecb_noreturn _Noreturn |
755 | #else |
833 | #else |
756 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
834 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
757 | #endif |
835 | #endif |
… | |
… | |
1026 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1104 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1027 | #if 0 \ |
1105 | #if 0 \ |
1028 | || __i386 || __i386__ \ |
1106 | || __i386 || __i386__ \ |
1029 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1107 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1030 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1108 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1031 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1032 | || defined __s390__ || defined __s390x__ \ |
1109 | || defined __s390__ || defined __s390x__ \ |
1033 | || defined __mips__ \ |
1110 | || defined __mips__ \ |
1034 | || defined __alpha__ \ |
1111 | || defined __alpha__ \ |
1035 | || defined __hppa__ \ |
1112 | || defined __hppa__ \ |
1036 | || defined __ia64__ \ |
1113 | || defined __ia64__ \ |
|
|
1114 | || defined __m68k__ \ |
|
|
1115 | || defined __m88k__ \ |
|
|
1116 | || defined __sh__ \ |
1037 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
1117 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
|
|
1118 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1119 | || defined __aarch64__ |
1038 | #define ECB_STDFP 1 |
1120 | #define ECB_STDFP 1 |
1039 | #include <string.h> /* for memcpy */ |
1121 | #include <string.h> /* for memcpy */ |
1040 | #else |
1122 | #else |
1041 | #define ECB_STDFP 0 |
1123 | #define ECB_STDFP 0 |
1042 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1043 | #endif |
1124 | #endif |
1044 | |
1125 | |
1045 | #ifndef ECB_NO_LIBM |
1126 | #ifndef ECB_NO_LIBM |
|
|
1127 | |
|
|
1128 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1129 | |
|
|
1130 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1131 | #ifdef INFINITY |
|
|
1132 | #define ECB_INFINITY INFINITY |
|
|
1133 | #else |
|
|
1134 | #define ECB_INFINITY HUGE_VAL |
|
|
1135 | #endif |
|
|
1136 | |
|
|
1137 | #ifdef NAN |
|
|
1138 | #define ECB_NAN NAN |
|
|
1139 | #else |
|
|
1140 | #define ECB_NAN ECB_INFINITY |
|
|
1141 | #endif |
|
|
1142 | |
|
|
1143 | /* converts an ieee half/binary16 to a float */ |
|
|
1144 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1145 | ecb_function_ float |
|
|
1146 | ecb_binary16_to_float (uint16_t x) |
|
|
1147 | { |
|
|
1148 | int e = (x >> 10) & 0x1f; |
|
|
1149 | int m = x & 0x3ff; |
|
|
1150 | float r; |
|
|
1151 | |
|
|
1152 | if (!e ) r = ldexpf (m , -24); |
|
|
1153 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1154 | else if (m ) r = ECB_NAN; |
|
|
1155 | else r = ECB_INFINITY; |
|
|
1156 | |
|
|
1157 | return x & 0x8000 ? -r : r; |
|
|
1158 | } |
1046 | |
1159 | |
1047 | /* convert a float to ieee single/binary32 */ |
1160 | /* convert a float to ieee single/binary32 */ |
1048 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1161 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1049 | ecb_function_ uint32_t |
1162 | ecb_function_ uint32_t |
1050 | ecb_float_to_binary32 (float x) |
1163 | ecb_float_to_binary32 (float x) |
… | |
… | |
2085 | ev_syserr ("(libev) error creating signal/async pipe"); |
2198 | ev_syserr ("(libev) error creating signal/async pipe"); |
2086 | |
2199 | |
2087 | fd_intern (fds [0]); |
2200 | fd_intern (fds [0]); |
2088 | } |
2201 | } |
2089 | |
2202 | |
2090 | fd_intern (fds [1]); |
|
|
2091 | |
|
|
2092 | evpipe [0] = fds [0]; |
2203 | evpipe [0] = fds [0]; |
2093 | |
2204 | |
2094 | if (evpipe [1] < 0) |
2205 | if (evpipe [1] < 0) |
2095 | evpipe [1] = fds [1]; /* first call, set write fd */ |
2206 | evpipe [1] = fds [1]; /* first call, set write fd */ |
2096 | else |
2207 | else |
… | |
… | |
2101 | /* so must not be executed on windows */ |
2212 | /* so must not be executed on windows */ |
2102 | |
2213 | |
2103 | dup2 (fds [1], evpipe [1]); |
2214 | dup2 (fds [1], evpipe [1]); |
2104 | close (fds [1]); |
2215 | close (fds [1]); |
2105 | } |
2216 | } |
|
|
2217 | |
|
|
2218 | fd_intern (evpipe [1]); |
2106 | |
2219 | |
2107 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2220 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2108 | ev_io_start (EV_A_ &pipe_w); |
2221 | ev_io_start (EV_A_ &pipe_w); |
2109 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2222 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2110 | } |
2223 | } |
… | |
… | |
2229 | |
2342 | |
2230 | void |
2343 | void |
2231 | ev_feed_signal (int signum) EV_THROW |
2344 | ev_feed_signal (int signum) EV_THROW |
2232 | { |
2345 | { |
2233 | #if EV_MULTIPLICITY |
2346 | #if EV_MULTIPLICITY |
|
|
2347 | EV_P; |
2234 | ECB_MEMORY_FENCE_ACQUIRE; |
2348 | ECB_MEMORY_FENCE_ACQUIRE; |
2235 | EV_P = signals [signum - 1].loop; |
2349 | EV_A = signals [signum - 1].loop; |
2236 | |
2350 | |
2237 | if (!EV_A) |
2351 | if (!EV_A) |
2238 | return; |
2352 | return; |
2239 | #endif |
2353 | #endif |
2240 | |
2354 | |
… | |
… | |
2493 | { |
2607 | { |
2494 | return userdata; |
2608 | return userdata; |
2495 | } |
2609 | } |
2496 | |
2610 | |
2497 | void |
2611 | void |
2498 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2612 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2499 | { |
2613 | { |
2500 | invoke_cb = invoke_pending_cb; |
2614 | invoke_cb = invoke_pending_cb; |
2501 | } |
2615 | } |
2502 | |
2616 | |
2503 | void |
2617 | void |