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 |
|
|
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, */ |
|
|
248 | /* but consider reporting it, too! :) */ |
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|
249 | # define EV_NSIG 65 |
|
|
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 |
|
|
258 | # endif |
|
|
259 | #endif |
|
|
260 | |
|
|
261 | #if !(_POSIX_TIMERS > 0) |
|
|
262 | # ifndef EV_USE_MONOTONIC |
|
|
263 | # define EV_USE_MONOTONIC 0 |
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|
264 | # endif |
|
|
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 |
|
|
367 | |
|
|
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 | |
|
|
378 | #ifdef _AIX |
|
|
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 |
|
|
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 (©) 2009-2015 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 |
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|
535 | |
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|
536 | /* 16 bits major, 16 bits minor */ |
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|
537 | #define ECB_VERSION 0x00010005 |
508 | |
538 | |
509 | #ifdef _WIN32 |
539 | #ifdef _WIN32 |
510 | typedef signed char int8_t; |
540 | typedef signed char int8_t; |
511 | typedef unsigned char uint8_t; |
541 | typedef unsigned char uint8_t; |
512 | typedef signed short int16_t; |
542 | typedef signed short int16_t; |
… | |
… | |
518 | typedef unsigned long long uint64_t; |
548 | typedef unsigned long long uint64_t; |
519 | #else /* _MSC_VER || __BORLANDC__ */ |
549 | #else /* _MSC_VER || __BORLANDC__ */ |
520 | typedef signed __int64 int64_t; |
550 | typedef signed __int64 int64_t; |
521 | typedef unsigned __int64 uint64_t; |
551 | typedef unsigned __int64 uint64_t; |
522 | #endif |
552 | #endif |
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|
553 | #ifdef _WIN64 |
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|
554 | #define ECB_PTRSIZE 8 |
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|
555 | typedef uint64_t uintptr_t; |
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556 | typedef int64_t intptr_t; |
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557 | #else |
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558 | #define ECB_PTRSIZE 4 |
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|
559 | typedef uint32_t uintptr_t; |
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560 | typedef int32_t intptr_t; |
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561 | #endif |
523 | #else |
562 | #else |
524 | #include <inttypes.h> |
563 | #include <inttypes.h> |
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|
564 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
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|
565 | #define ECB_PTRSIZE 8 |
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|
566 | #else |
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567 | #define ECB_PTRSIZE 4 |
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568 | #endif |
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569 | #endif |
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570 | |
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571 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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572 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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573 | |
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574 | /* work around x32 idiocy by defining proper macros */ |
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575 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
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576 | #if _ILP32 |
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577 | #define ECB_AMD64_X32 1 |
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578 | #else |
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579 | #define ECB_AMD64 1 |
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580 | #endif |
525 | #endif |
581 | #endif |
526 | |
582 | |
527 | /* many compilers define _GNUC_ to some versions but then only implement |
583 | /* many compilers define _GNUC_ to some versions but then only implement |
528 | * what their idiot authors think are the "more important" extensions, |
584 | * what their idiot authors think are the "more important" extensions, |
529 | * causing enormous grief in return for some better fake benchmark numbers. |
585 | * causing enormous grief in return for some better fake benchmark numbers. |
530 | * or so. |
586 | * or so. |
531 | * we try to detect these and simply assume they are not gcc - if they have |
587 | * we try to detect these and simply assume they are not gcc - if they have |
532 | * an issue with that they should have done it right in the first place. |
588 | * an issue with that they should have done it right in the first place. |
533 | */ |
589 | */ |
534 | #ifndef ECB_GCC_VERSION |
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535 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
590 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
536 | #define ECB_GCC_VERSION(major,minor) 0 |
591 | #define ECB_GCC_VERSION(major,minor) 0 |
537 | #else |
592 | #else |
538 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
593 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
539 | #endif |
594 | #endif |
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595 | |
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596 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
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597 | |
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598 | #if __clang__ && defined __has_builtin |
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599 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
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600 | #else |
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601 | #define ECB_CLANG_BUILTIN(x) 0 |
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602 | #endif |
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603 | |
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604 | #if __clang__ && defined __has_extension |
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605 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
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606 | #else |
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607 | #define ECB_CLANG_EXTENSION(x) 0 |
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608 | #endif |
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609 | |
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610 | #define ECB_CPP (__cplusplus+0) |
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611 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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612 | |
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613 | #if ECB_CPP |
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614 | #define ECB_C 0 |
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615 | #define ECB_STDC_VERSION 0 |
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616 | #else |
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617 | #define ECB_C 1 |
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618 | #define ECB_STDC_VERSION __STDC_VERSION__ |
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619 | #endif |
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620 | |
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621 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
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622 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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623 | |
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624 | #if ECB_CPP |
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625 | #define ECB_EXTERN_C extern "C" |
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626 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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627 | #define ECB_EXTERN_C_END } |
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628 | #else |
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629 | #define ECB_EXTERN_C extern |
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630 | #define ECB_EXTERN_C_BEG |
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631 | #define ECB_EXTERN_C_END |
540 | #endif |
632 | #endif |
541 | |
633 | |
542 | /*****************************************************************************/ |
634 | /*****************************************************************************/ |
543 | |
635 | |
544 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
636 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
545 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
637 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
546 | |
638 | |
547 | #if ECB_NO_THREADS |
639 | #if ECB_NO_THREADS |
548 | # define ECB_NO_SMP 1 |
640 | #define ECB_NO_SMP 1 |
549 | #endif |
641 | #endif |
550 | |
642 | |
551 | #if ECB_NO_THREADS || ECB_NO_SMP |
643 | #if ECB_NO_SMP |
552 | #define ECB_MEMORY_FENCE do { } while (0) |
644 | #define ECB_MEMORY_FENCE do { } while (0) |
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645 | #endif |
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646 | |
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647 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
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648 | #if __xlC__ && ECB_CPP |
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649 | #include <builtins.h> |
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650 | #endif |
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651 | |
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652 | #if 1400 <= _MSC_VER |
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653 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
553 | #endif |
654 | #endif |
554 | |
655 | |
555 | #ifndef ECB_MEMORY_FENCE |
656 | #ifndef ECB_MEMORY_FENCE |
556 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
657 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
557 | #if __i386 || __i386__ |
658 | #if __i386 || __i386__ |
558 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
659 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
559 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
660 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
560 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
661 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
561 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
662 | #elif ECB_GCC_AMD64 |
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
664 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
564 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
665 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
565 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
666 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
566 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
667 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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668 | #elif defined __ARM_ARCH_2__ \ |
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669 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
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670 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
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671 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
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672 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
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673 | || defined __ARM_ARCH_5TEJ__ |
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674 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
567 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
675 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
568 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
676 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
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|
677 | || defined __ARM_ARCH_6T2__ |
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
678 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
570 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
679 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
571 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
680 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
681 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
573 | #elif __sparc || __sparc__ |
682 | #elif __aarch64__ |
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|
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
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684 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
574 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
685 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
575 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
686 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
576 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
687 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
577 | #elif defined __s390__ || defined __s390x__ |
688 | #elif defined __s390__ || defined __s390x__ |
578 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
579 | #elif defined __mips__ |
690 | #elif defined __mips__ |
|
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691 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
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692 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
580 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
693 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
581 | #elif defined __alpha__ |
694 | #elif defined __alpha__ |
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
695 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
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696 | #elif defined __hppa__ |
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697 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
698 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
699 | #elif defined __ia64__ |
|
|
700 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
701 | #elif defined __m68k__ |
|
|
702 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
703 | #elif defined __m88k__ |
|
|
704 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
705 | #elif defined __sh__ |
|
|
706 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
583 | #endif |
707 | #endif |
584 | #endif |
708 | #endif |
585 | #endif |
709 | #endif |
586 | |
710 | |
587 | #ifndef ECB_MEMORY_FENCE |
711 | #ifndef ECB_MEMORY_FENCE |
|
|
712 | #if ECB_GCC_VERSION(4,7) |
|
|
713 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
714 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
715 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
716 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
717 | |
|
|
718 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
719 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
720 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
721 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
722 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
723 | |
588 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
724 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
589 | #define ECB_MEMORY_FENCE __sync_synchronize () |
725 | #define ECB_MEMORY_FENCE __sync_synchronize () |
590 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
726 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
591 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
727 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
728 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
729 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
730 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
731 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
592 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
732 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
593 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
733 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
594 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
734 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
595 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
735 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
596 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
736 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
606 | #define ECB_MEMORY_FENCE __sync () |
746 | #define ECB_MEMORY_FENCE __sync () |
607 | #endif |
747 | #endif |
608 | #endif |
748 | #endif |
609 | |
749 | |
610 | #ifndef ECB_MEMORY_FENCE |
750 | #ifndef ECB_MEMORY_FENCE |
|
|
751 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
752 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
753 | /* not just C11 atomics and atomic accesses */ |
|
|
754 | #include <stdatomic.h> |
|
|
755 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
756 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
757 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
758 | /* for most usages, or gcc and clang have a bug */ |
|
|
759 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
760 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
761 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
762 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
763 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
764 | #endif |
|
|
765 | #endif |
|
|
766 | |
|
|
767 | #ifndef ECB_MEMORY_FENCE |
611 | #if !ECB_AVOID_PTHREADS |
768 | #if !ECB_AVOID_PTHREADS |
612 | /* |
769 | /* |
613 | * if you get undefined symbol references to pthread_mutex_lock, |
770 | * if you get undefined symbol references to pthread_mutex_lock, |
614 | * or failure to find pthread.h, then you should implement |
771 | * or failure to find pthread.h, then you should implement |
615 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
772 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
… | |
… | |
633 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
790 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
634 | #endif |
791 | #endif |
635 | |
792 | |
636 | /*****************************************************************************/ |
793 | /*****************************************************************************/ |
637 | |
794 | |
638 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
795 | #if ECB_CPP |
639 | |
|
|
640 | #if __cplusplus |
|
|
641 | #define ecb_inline static inline |
796 | #define ecb_inline static inline |
642 | #elif ECB_GCC_VERSION(2,5) |
797 | #elif ECB_GCC_VERSION(2,5) |
643 | #define ecb_inline static __inline__ |
798 | #define ecb_inline static __inline__ |
644 | #elif ECB_C99 |
799 | #elif ECB_C99 |
645 | #define ecb_inline static inline |
800 | #define ecb_inline static inline |
… | |
… | |
659 | |
814 | |
660 | #define ECB_CONCAT_(a, b) a ## b |
815 | #define ECB_CONCAT_(a, b) a ## b |
661 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
816 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
662 | #define ECB_STRINGIFY_(a) # a |
817 | #define ECB_STRINGIFY_(a) # a |
663 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
818 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
819 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
664 | |
820 | |
665 | #define ecb_function_ ecb_inline |
821 | #define ecb_function_ ecb_inline |
666 | |
822 | |
667 | #if ECB_GCC_VERSION(3,1) |
823 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
668 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
824 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
825 | #else |
|
|
826 | #define ecb_attribute(attrlist) |
|
|
827 | #endif |
|
|
828 | |
|
|
829 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
669 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
830 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
831 | #else |
|
|
832 | /* possible C11 impl for integral types |
|
|
833 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
834 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
835 | |
|
|
836 | #define ecb_is_constant(expr) 0 |
|
|
837 | #endif |
|
|
838 | |
|
|
839 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
670 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
840 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
841 | #else |
|
|
842 | #define ecb_expect(expr,value) (expr) |
|
|
843 | #endif |
|
|
844 | |
|
|
845 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
671 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
846 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
672 | #else |
847 | #else |
673 | #define ecb_attribute(attrlist) |
|
|
674 | #define ecb_is_constant(expr) 0 |
|
|
675 | #define ecb_expect(expr,value) (expr) |
|
|
676 | #define ecb_prefetch(addr,rw,locality) |
848 | #define ecb_prefetch(addr,rw,locality) |
677 | #endif |
849 | #endif |
678 | |
850 | |
679 | /* no emulation for ecb_decltype */ |
851 | /* no emulation for ecb_decltype */ |
680 | #if ECB_GCC_VERSION(4,5) |
852 | #if ECB_CPP11 |
|
|
853 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
854 | template<class T> struct ecb_decltype_t { typedef T type; }; |
681 | #define ecb_decltype(x) __decltype(x) |
855 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
682 | #elif ECB_GCC_VERSION(3,0) |
856 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
683 | #define ecb_decltype(x) __typeof(x) |
857 | #define ecb_decltype(x) __typeof__ (x) |
684 | #endif |
858 | #endif |
685 | |
859 | |
|
|
860 | #if _MSC_VER >= 1300 |
|
|
861 | #define ecb_deprecated __declspec (deprecated) |
|
|
862 | #else |
|
|
863 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
864 | #endif |
|
|
865 | |
|
|
866 | #if _MSC_VER >= 1500 |
|
|
867 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
868 | #elif ECB_GCC_VERSION(4,5) |
|
|
869 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
870 | #else |
|
|
871 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | #if _MSC_VER >= 1400 |
|
|
875 | #define ecb_noinline __declspec (noinline) |
|
|
876 | #else |
686 | #define ecb_noinline ecb_attribute ((__noinline__)) |
877 | #define ecb_noinline ecb_attribute ((__noinline__)) |
687 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
878 | #endif |
|
|
879 | |
688 | #define ecb_unused ecb_attribute ((__unused__)) |
880 | #define ecb_unused ecb_attribute ((__unused__)) |
689 | #define ecb_const ecb_attribute ((__const__)) |
881 | #define ecb_const ecb_attribute ((__const__)) |
690 | #define ecb_pure ecb_attribute ((__pure__)) |
882 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
883 | |
|
|
884 | #if ECB_C11 || __IBMC_NORETURN |
|
|
885 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
886 | #define ecb_noreturn _Noreturn |
|
|
887 | #elif ECB_CPP11 |
|
|
888 | #define ecb_noreturn [[noreturn]] |
|
|
889 | #elif _MSC_VER >= 1200 |
|
|
890 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
891 | #define ecb_noreturn __declspec (noreturn) |
|
|
892 | #else |
|
|
893 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
894 | #endif |
691 | |
895 | |
692 | #if ECB_GCC_VERSION(4,3) |
896 | #if ECB_GCC_VERSION(4,3) |
693 | #define ecb_artificial ecb_attribute ((__artificial__)) |
897 | #define ecb_artificial ecb_attribute ((__artificial__)) |
694 | #define ecb_hot ecb_attribute ((__hot__)) |
898 | #define ecb_hot ecb_attribute ((__hot__)) |
695 | #define ecb_cold ecb_attribute ((__cold__)) |
899 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
707 | /* for compatibility to the rest of the world */ |
911 | /* for compatibility to the rest of the world */ |
708 | #define ecb_likely(expr) ecb_expect_true (expr) |
912 | #define ecb_likely(expr) ecb_expect_true (expr) |
709 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
913 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
710 | |
914 | |
711 | /* count trailing zero bits and count # of one bits */ |
915 | /* count trailing zero bits and count # of one bits */ |
712 | #if ECB_GCC_VERSION(3,4) |
916 | #if ECB_GCC_VERSION(3,4) \ |
|
|
917 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
918 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
919 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
713 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
920 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
714 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
921 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
715 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
922 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
716 | #define ecb_ctz32(x) __builtin_ctz (x) |
923 | #define ecb_ctz32(x) __builtin_ctz (x) |
717 | #define ecb_ctz64(x) __builtin_ctzll (x) |
924 | #define ecb_ctz64(x) __builtin_ctzll (x) |
718 | #define ecb_popcount32(x) __builtin_popcount (x) |
925 | #define ecb_popcount32(x) __builtin_popcount (x) |
719 | /* no popcountll */ |
926 | /* no popcountll */ |
720 | #else |
927 | #else |
721 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
928 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
722 | ecb_function_ int |
929 | ecb_function_ ecb_const int |
723 | ecb_ctz32 (uint32_t x) |
930 | ecb_ctz32 (uint32_t x) |
724 | { |
931 | { |
|
|
932 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
933 | unsigned long r; |
|
|
934 | _BitScanForward (&r, x); |
|
|
935 | return (int)r; |
|
|
936 | #else |
725 | int r = 0; |
937 | int r = 0; |
726 | |
938 | |
727 | x &= ~x + 1; /* this isolates the lowest bit */ |
939 | x &= ~x + 1; /* this isolates the lowest bit */ |
728 | |
940 | |
729 | #if ECB_branchless_on_i386 |
941 | #if ECB_branchless_on_i386 |
… | |
… | |
739 | if (x & 0xff00ff00) r += 8; |
951 | if (x & 0xff00ff00) r += 8; |
740 | if (x & 0xffff0000) r += 16; |
952 | if (x & 0xffff0000) r += 16; |
741 | #endif |
953 | #endif |
742 | |
954 | |
743 | return r; |
955 | return r; |
|
|
956 | #endif |
744 | } |
957 | } |
745 | |
958 | |
746 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
959 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
747 | ecb_function_ int |
960 | ecb_function_ ecb_const int |
748 | ecb_ctz64 (uint64_t x) |
961 | ecb_ctz64 (uint64_t x) |
749 | { |
962 | { |
|
|
963 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
964 | unsigned long r; |
|
|
965 | _BitScanForward64 (&r, x); |
|
|
966 | return (int)r; |
|
|
967 | #else |
750 | int shift = x & 0xffffffffU ? 0 : 32; |
968 | int shift = x & 0xffffffff ? 0 : 32; |
751 | return ecb_ctz32 (x >> shift) + shift; |
969 | return ecb_ctz32 (x >> shift) + shift; |
|
|
970 | #endif |
752 | } |
971 | } |
753 | |
972 | |
754 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
973 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
755 | ecb_function_ int |
974 | ecb_function_ ecb_const int |
756 | ecb_popcount32 (uint32_t x) |
975 | ecb_popcount32 (uint32_t x) |
757 | { |
976 | { |
758 | x -= (x >> 1) & 0x55555555; |
977 | x -= (x >> 1) & 0x55555555; |
759 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
978 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
760 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
979 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
761 | x *= 0x01010101; |
980 | x *= 0x01010101; |
762 | |
981 | |
763 | return x >> 24; |
982 | return x >> 24; |
764 | } |
983 | } |
765 | |
984 | |
766 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
985 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
767 | ecb_function_ int ecb_ld32 (uint32_t x) |
986 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
768 | { |
987 | { |
|
|
988 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
989 | unsigned long r; |
|
|
990 | _BitScanReverse (&r, x); |
|
|
991 | return (int)r; |
|
|
992 | #else |
769 | int r = 0; |
993 | int r = 0; |
770 | |
994 | |
771 | if (x >> 16) { x >>= 16; r += 16; } |
995 | if (x >> 16) { x >>= 16; r += 16; } |
772 | if (x >> 8) { x >>= 8; r += 8; } |
996 | if (x >> 8) { x >>= 8; r += 8; } |
773 | if (x >> 4) { x >>= 4; r += 4; } |
997 | if (x >> 4) { x >>= 4; r += 4; } |
774 | if (x >> 2) { x >>= 2; r += 2; } |
998 | if (x >> 2) { x >>= 2; r += 2; } |
775 | if (x >> 1) { r += 1; } |
999 | if (x >> 1) { r += 1; } |
776 | |
1000 | |
777 | return r; |
1001 | return r; |
|
|
1002 | #endif |
778 | } |
1003 | } |
779 | |
1004 | |
780 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1005 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
781 | ecb_function_ int ecb_ld64 (uint64_t x) |
1006 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
782 | { |
1007 | { |
|
|
1008 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1009 | unsigned long r; |
|
|
1010 | _BitScanReverse64 (&r, x); |
|
|
1011 | return (int)r; |
|
|
1012 | #else |
783 | int r = 0; |
1013 | int r = 0; |
784 | |
1014 | |
785 | if (x >> 32) { x >>= 32; r += 32; } |
1015 | if (x >> 32) { x >>= 32; r += 32; } |
786 | |
1016 | |
787 | return r + ecb_ld32 (x); |
1017 | return r + ecb_ld32 (x); |
|
|
1018 | #endif |
788 | } |
1019 | } |
789 | #endif |
1020 | #endif |
790 | |
1021 | |
|
|
1022 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1023 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1024 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1025 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1026 | |
791 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1027 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
792 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1028 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
793 | { |
1029 | { |
794 | return ( (x * 0x0802U & 0x22110U) |
1030 | return ( (x * 0x0802U & 0x22110U) |
795 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1031 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
796 | } |
1032 | } |
797 | |
1033 | |
798 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1034 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
799 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1035 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
800 | { |
1036 | { |
801 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1037 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
802 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1038 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
803 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1039 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
804 | x = ( x >> 8 ) | ( x << 8); |
1040 | x = ( x >> 8 ) | ( x << 8); |
805 | |
1041 | |
806 | return x; |
1042 | return x; |
807 | } |
1043 | } |
808 | |
1044 | |
809 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1045 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
810 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1046 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
811 | { |
1047 | { |
812 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1048 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
813 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1049 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
814 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1050 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
815 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1051 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
818 | return x; |
1054 | return x; |
819 | } |
1055 | } |
820 | |
1056 | |
821 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1057 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
822 | /* so for this version we are lazy */ |
1058 | /* so for this version we are lazy */ |
823 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1059 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
824 | ecb_function_ int |
1060 | ecb_function_ ecb_const int |
825 | ecb_popcount64 (uint64_t x) |
1061 | ecb_popcount64 (uint64_t x) |
826 | { |
1062 | { |
827 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1063 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
828 | } |
1064 | } |
829 | |
1065 | |
830 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1066 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
831 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1067 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
832 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1068 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
833 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1069 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
834 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1070 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
835 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1071 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
836 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1072 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
837 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1073 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
838 | |
1074 | |
839 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1075 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
840 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1076 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
841 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1077 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
842 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1078 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
843 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1079 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
844 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1080 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
845 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1081 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
846 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1082 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
847 | |
1083 | |
848 | #if ECB_GCC_VERSION(4,3) |
1084 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1085 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1086 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1087 | #else |
849 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1088 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1089 | #endif |
850 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1090 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
851 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1091 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1092 | #elif _MSC_VER |
|
|
1093 | #include <stdlib.h> |
|
|
1094 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1095 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1096 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
852 | #else |
1097 | #else |
853 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1098 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
854 | ecb_function_ uint16_t |
1099 | ecb_function_ ecb_const uint16_t |
855 | ecb_bswap16 (uint16_t x) |
1100 | ecb_bswap16 (uint16_t x) |
856 | { |
1101 | { |
857 | return ecb_rotl16 (x, 8); |
1102 | return ecb_rotl16 (x, 8); |
858 | } |
1103 | } |
859 | |
1104 | |
860 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1105 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
861 | ecb_function_ uint32_t |
1106 | ecb_function_ ecb_const uint32_t |
862 | ecb_bswap32 (uint32_t x) |
1107 | ecb_bswap32 (uint32_t x) |
863 | { |
1108 | { |
864 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1109 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
865 | } |
1110 | } |
866 | |
1111 | |
867 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1112 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
868 | ecb_function_ uint64_t |
1113 | ecb_function_ ecb_const uint64_t |
869 | ecb_bswap64 (uint64_t x) |
1114 | ecb_bswap64 (uint64_t x) |
870 | { |
1115 | { |
871 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1116 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
872 | } |
1117 | } |
873 | #endif |
1118 | #endif |
874 | |
1119 | |
875 | #if ECB_GCC_VERSION(4,5) |
1120 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
876 | #define ecb_unreachable() __builtin_unreachable () |
1121 | #define ecb_unreachable() __builtin_unreachable () |
877 | #else |
1122 | #else |
878 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1123 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
879 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1124 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
880 | ecb_inline void ecb_unreachable (void) { } |
1125 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
881 | #endif |
1126 | #endif |
882 | |
1127 | |
883 | /* try to tell the compiler that some condition is definitely true */ |
1128 | /* try to tell the compiler that some condition is definitely true */ |
884 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1129 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
885 | |
1130 | |
886 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1131 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
887 | ecb_inline unsigned char |
1132 | ecb_inline ecb_const uint32_t |
888 | ecb_byteorder_helper (void) |
1133 | ecb_byteorder_helper (void) |
889 | { |
1134 | { |
890 | const uint32_t u = 0x11223344; |
1135 | /* the union code still generates code under pressure in gcc, */ |
891 | return *(unsigned char *)&u; |
1136 | /* but less than using pointers, and always seems to */ |
|
|
1137 | /* successfully return a constant. */ |
|
|
1138 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1139 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1140 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1141 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1142 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1143 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1144 | return 0x44332211; |
|
|
1145 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1146 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1147 | #define ECB_BIG_ENDIAN 1 |
|
|
1148 | return 0x11223344; |
|
|
1149 | #else |
|
|
1150 | union |
|
|
1151 | { |
|
|
1152 | uint8_t c[4]; |
|
|
1153 | uint32_t u; |
|
|
1154 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1155 | return u.u; |
|
|
1156 | #endif |
892 | } |
1157 | } |
893 | |
1158 | |
894 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1159 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
895 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1160 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
896 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1161 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
897 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1162 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
898 | |
1163 | |
899 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1164 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
900 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1165 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
901 | #else |
1166 | #else |
902 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1167 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
903 | #endif |
1168 | #endif |
904 | |
1169 | |
905 | #if __cplusplus |
1170 | #if ECB_CPP |
906 | template<typename T> |
1171 | template<typename T> |
907 | static inline T ecb_div_rd (T val, T div) |
1172 | static inline T ecb_div_rd (T val, T div) |
908 | { |
1173 | { |
909 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1174 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
910 | } |
1175 | } |
… | |
… | |
927 | } |
1192 | } |
928 | #else |
1193 | #else |
929 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1194 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
930 | #endif |
1195 | #endif |
931 | |
1196 | |
|
|
1197 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1198 | ecb_function_ ecb_const uint32_t |
|
|
1199 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1200 | { |
|
|
1201 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1202 | int e = (x >> 10) & 0x001f; |
|
|
1203 | unsigned int m = x & 0x03ff; |
|
|
1204 | |
|
|
1205 | if (ecb_expect_false (e == 31)) |
|
|
1206 | /* infinity or NaN */ |
|
|
1207 | e = 255 - (127 - 15); |
|
|
1208 | else if (ecb_expect_false (!e)) |
|
|
1209 | { |
|
|
1210 | if (ecb_expect_true (!m)) |
|
|
1211 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1212 | e = 0 - (127 - 15); |
|
|
1213 | else |
|
|
1214 | { |
|
|
1215 | /* subnormal, renormalise */ |
|
|
1216 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1217 | |
|
|
1218 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1219 | e -= s - 1; |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1224 | e += 127 - 15; |
|
|
1225 | |
|
|
1226 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1230 | ecb_function_ ecb_const uint16_t |
|
|
1231 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1232 | { |
|
|
1233 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1234 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1235 | unsigned int m = x & 0x007fffff; |
|
|
1236 | |
|
|
1237 | x &= 0x7fffffff; |
|
|
1238 | |
|
|
1239 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1240 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1241 | { |
|
|
1242 | /* mantissa round-to-even */ |
|
|
1243 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1244 | |
|
|
1245 | /* handle overflow */ |
|
|
1246 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1247 | { |
|
|
1248 | m >>= 1; |
|
|
1249 | e += 1; |
|
|
1250 | } |
|
|
1251 | |
|
|
1252 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1253 | } |
|
|
1254 | |
|
|
1255 | /* handle large numbers and infinity */ |
|
|
1256 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1257 | return s | 0x7c00; |
|
|
1258 | |
|
|
1259 | /* handle zero, subnormals and small numbers */ |
|
|
1260 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1261 | { |
|
|
1262 | /* zero */ |
|
|
1263 | if (ecb_expect_true (!x)) |
|
|
1264 | return s; |
|
|
1265 | |
|
|
1266 | /* handle subnormals */ |
|
|
1267 | |
|
|
1268 | /* too small, will be zero */ |
|
|
1269 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1270 | return s; |
|
|
1271 | |
|
|
1272 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1273 | |
|
|
1274 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1275 | { |
|
|
1276 | unsigned int bits = 14 - e; |
|
|
1277 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1278 | unsigned int even = (m >> bits) & 1; |
|
|
1279 | |
|
|
1280 | /* if this overflows, we will end up with a normalised number */ |
|
|
1281 | m = (m + half + even) >> bits; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | return s | m; |
|
|
1285 | } |
|
|
1286 | |
|
|
1287 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1288 | m >>= 13; |
|
|
1289 | |
|
|
1290 | return s | 0x7c00 | m | !m; |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | /*******************************************************************************/ |
|
|
1294 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1295 | |
|
|
1296 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1297 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1298 | #if 0 \ |
|
|
1299 | || __i386 || __i386__ \ |
|
|
1300 | || ECB_GCC_AMD64 \ |
|
|
1301 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1302 | || defined __s390__ || defined __s390x__ \ |
|
|
1303 | || defined __mips__ \ |
|
|
1304 | || defined __alpha__ \ |
|
|
1305 | || defined __hppa__ \ |
|
|
1306 | || defined __ia64__ \ |
|
|
1307 | || defined __m68k__ \ |
|
|
1308 | || defined __m88k__ \ |
|
|
1309 | || defined __sh__ \ |
|
|
1310 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1311 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1312 | || defined __aarch64__ |
|
|
1313 | #define ECB_STDFP 1 |
|
|
1314 | #include <string.h> /* for memcpy */ |
|
|
1315 | #else |
|
|
1316 | #define ECB_STDFP 0 |
|
|
1317 | #endif |
|
|
1318 | |
|
|
1319 | #ifndef ECB_NO_LIBM |
|
|
1320 | |
|
|
1321 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1322 | |
|
|
1323 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1324 | #ifdef INFINITY |
|
|
1325 | #define ECB_INFINITY INFINITY |
|
|
1326 | #else |
|
|
1327 | #define ECB_INFINITY HUGE_VAL |
|
|
1328 | #endif |
|
|
1329 | |
|
|
1330 | #ifdef NAN |
|
|
1331 | #define ECB_NAN NAN |
|
|
1332 | #else |
|
|
1333 | #define ECB_NAN ECB_INFINITY |
|
|
1334 | #endif |
|
|
1335 | |
|
|
1336 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1337 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1338 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1339 | #else |
|
|
1340 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1341 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1342 | #endif |
|
|
1343 | |
|
|
1344 | /* convert a float to ieee single/binary32 */ |
|
|
1345 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1346 | ecb_function_ ecb_const uint32_t |
|
|
1347 | ecb_float_to_binary32 (float x) |
|
|
1348 | { |
|
|
1349 | uint32_t r; |
|
|
1350 | |
|
|
1351 | #if ECB_STDFP |
|
|
1352 | memcpy (&r, &x, 4); |
|
|
1353 | #else |
|
|
1354 | /* slow emulation, works for anything but -0 */ |
|
|
1355 | uint32_t m; |
|
|
1356 | int e; |
|
|
1357 | |
|
|
1358 | if (x == 0e0f ) return 0x00000000U; |
|
|
1359 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1360 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1361 | if (x != x ) return 0x7fbfffffU; |
|
|
1362 | |
|
|
1363 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1364 | |
|
|
1365 | r = m & 0x80000000U; |
|
|
1366 | |
|
|
1367 | if (r) |
|
|
1368 | m = -m; |
|
|
1369 | |
|
|
1370 | if (e <= -126) |
|
|
1371 | { |
|
|
1372 | m &= 0xffffffU; |
|
|
1373 | m >>= (-125 - e); |
|
|
1374 | e = -126; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | r |= (e + 126) << 23; |
|
|
1378 | r |= m & 0x7fffffU; |
|
|
1379 | #endif |
|
|
1380 | |
|
|
1381 | return r; |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | /* converts an ieee single/binary32 to a float */ |
|
|
1385 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1386 | ecb_function_ ecb_const float |
|
|
1387 | ecb_binary32_to_float (uint32_t x) |
|
|
1388 | { |
|
|
1389 | float r; |
|
|
1390 | |
|
|
1391 | #if ECB_STDFP |
|
|
1392 | memcpy (&r, &x, 4); |
|
|
1393 | #else |
|
|
1394 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1395 | int neg = x >> 31; |
|
|
1396 | int e = (x >> 23) & 0xffU; |
|
|
1397 | |
|
|
1398 | x &= 0x7fffffU; |
|
|
1399 | |
|
|
1400 | if (e) |
|
|
1401 | x |= 0x800000U; |
|
|
1402 | else |
|
|
1403 | e = 1; |
|
|
1404 | |
|
|
1405 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1406 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1407 | |
|
|
1408 | r = neg ? -r : r; |
|
|
1409 | #endif |
|
|
1410 | |
|
|
1411 | return r; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | /* convert a double to ieee double/binary64 */ |
|
|
1415 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1416 | ecb_function_ ecb_const uint64_t |
|
|
1417 | ecb_double_to_binary64 (double x) |
|
|
1418 | { |
|
|
1419 | uint64_t r; |
|
|
1420 | |
|
|
1421 | #if ECB_STDFP |
|
|
1422 | memcpy (&r, &x, 8); |
|
|
1423 | #else |
|
|
1424 | /* slow emulation, works for anything but -0 */ |
|
|
1425 | uint64_t m; |
|
|
1426 | int e; |
|
|
1427 | |
|
|
1428 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1429 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1430 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1431 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1432 | |
|
|
1433 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1434 | |
|
|
1435 | r = m & 0x8000000000000000;; |
|
|
1436 | |
|
|
1437 | if (r) |
|
|
1438 | m = -m; |
|
|
1439 | |
|
|
1440 | if (e <= -1022) |
|
|
1441 | { |
|
|
1442 | m &= 0x1fffffffffffffU; |
|
|
1443 | m >>= (-1021 - e); |
|
|
1444 | e = -1022; |
|
|
1445 | } |
|
|
1446 | |
|
|
1447 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1448 | r |= m & 0xfffffffffffffU; |
|
|
1449 | #endif |
|
|
1450 | |
|
|
1451 | return r; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | /* converts an ieee double/binary64 to a double */ |
|
|
1455 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1456 | ecb_function_ ecb_const double |
|
|
1457 | ecb_binary64_to_double (uint64_t x) |
|
|
1458 | { |
|
|
1459 | double r; |
|
|
1460 | |
|
|
1461 | #if ECB_STDFP |
|
|
1462 | memcpy (&r, &x, 8); |
|
|
1463 | #else |
|
|
1464 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1465 | int neg = x >> 63; |
|
|
1466 | int e = (x >> 52) & 0x7ffU; |
|
|
1467 | |
|
|
1468 | x &= 0xfffffffffffffU; |
|
|
1469 | |
|
|
1470 | if (e) |
|
|
1471 | x |= 0x10000000000000U; |
|
|
1472 | else |
|
|
1473 | e = 1; |
|
|
1474 | |
|
|
1475 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1476 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1477 | |
|
|
1478 | r = neg ? -r : r; |
|
|
1479 | #endif |
|
|
1480 | |
|
|
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* convert a float to ieee half/binary16 */ |
|
|
1485 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1486 | ecb_function_ ecb_const uint16_t |
|
|
1487 | ecb_float_to_binary16 (float x) |
|
|
1488 | { |
|
|
1489 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1490 | } |
|
|
1491 | |
|
|
1492 | /* convert an ieee half/binary16 to float */ |
|
|
1493 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1494 | ecb_function_ ecb_const float |
|
|
1495 | ecb_binary16_to_float (uint16_t x) |
|
|
1496 | { |
|
|
1497 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | #endif |
|
|
1501 | |
932 | #endif |
1502 | #endif |
933 | |
1503 | |
934 | /* ECB.H END */ |
1504 | /* ECB.H END */ |
935 | |
1505 | |
936 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1506 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
957 | #define inline_size ecb_inline |
1527 | #define inline_size ecb_inline |
958 | |
1528 | |
959 | #if EV_FEATURE_CODE |
1529 | #if EV_FEATURE_CODE |
960 | # define inline_speed ecb_inline |
1530 | # define inline_speed ecb_inline |
961 | #else |
1531 | #else |
962 | # define inline_speed static noinline |
1532 | # define inline_speed noinline static |
963 | #endif |
1533 | #endif |
964 | |
1534 | |
965 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1535 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
966 | |
1536 | |
967 | #if EV_MINPRI == EV_MAXPRI |
1537 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
1014 | #else |
1584 | #else |
1015 | |
1585 | |
1016 | #include <float.h> |
1586 | #include <float.h> |
1017 | |
1587 | |
1018 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1588 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1589 | noinline |
1019 | static ev_tstamp noinline |
1590 | static ev_tstamp |
1020 | ev_floor (ev_tstamp v) |
1591 | ev_floor (ev_tstamp v) |
1021 | { |
1592 | { |
1022 | /* the choice of shift factor is not terribly important */ |
1593 | /* the choice of shift factor is not terribly important */ |
1023 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1594 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1024 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1595 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
… | |
… | |
1056 | |
1627 | |
1057 | #ifdef __linux |
1628 | #ifdef __linux |
1058 | # include <sys/utsname.h> |
1629 | # include <sys/utsname.h> |
1059 | #endif |
1630 | #endif |
1060 | |
1631 | |
1061 | static unsigned int noinline ecb_cold |
1632 | noinline ecb_cold |
|
|
1633 | static unsigned int |
1062 | ev_linux_version (void) |
1634 | ev_linux_version (void) |
1063 | { |
1635 | { |
1064 | #ifdef __linux |
1636 | #ifdef __linux |
1065 | unsigned int v = 0; |
1637 | unsigned int v = 0; |
1066 | struct utsname buf; |
1638 | struct utsname buf; |
… | |
… | |
1095 | } |
1667 | } |
1096 | |
1668 | |
1097 | /*****************************************************************************/ |
1669 | /*****************************************************************************/ |
1098 | |
1670 | |
1099 | #if EV_AVOID_STDIO |
1671 | #if EV_AVOID_STDIO |
1100 | static void noinline ecb_cold |
1672 | noinline ecb_cold |
|
|
1673 | static void |
1101 | ev_printerr (const char *msg) |
1674 | ev_printerr (const char *msg) |
1102 | { |
1675 | { |
1103 | write (STDERR_FILENO, msg, strlen (msg)); |
1676 | write (STDERR_FILENO, msg, strlen (msg)); |
1104 | } |
1677 | } |
1105 | #endif |
1678 | #endif |
1106 | |
1679 | |
1107 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1680 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1108 | |
1681 | |
1109 | void ecb_cold |
1682 | ecb_cold |
|
|
1683 | void |
1110 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1684 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1111 | { |
1685 | { |
1112 | syserr_cb = cb; |
1686 | syserr_cb = cb; |
1113 | } |
1687 | } |
1114 | |
1688 | |
1115 | static void noinline ecb_cold |
1689 | noinline ecb_cold |
|
|
1690 | static void |
1116 | ev_syserr (const char *msg) |
1691 | ev_syserr (const char *msg) |
1117 | { |
1692 | { |
1118 | if (!msg) |
1693 | if (!msg) |
1119 | msg = "(libev) system error"; |
1694 | msg = "(libev) system error"; |
1120 | |
1695 | |
… | |
… | |
1135 | } |
1710 | } |
1136 | |
1711 | |
1137 | static void * |
1712 | static void * |
1138 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1713 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1139 | { |
1714 | { |
1140 | #if __GLIBC__ |
|
|
1141 | return realloc (ptr, size); |
|
|
1142 | #else |
|
|
1143 | /* some systems, notably openbsd and darwin, fail to properly |
1715 | /* some systems, notably openbsd and darwin, fail to properly |
1144 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1716 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1145 | * the single unix specification, so work around them here. |
1717 | * the single unix specification, so work around them here. |
|
|
1718 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1719 | * despite documenting it otherwise. |
1146 | */ |
1720 | */ |
1147 | |
1721 | |
1148 | if (size) |
1722 | if (size) |
1149 | return realloc (ptr, size); |
1723 | return realloc (ptr, size); |
1150 | |
1724 | |
1151 | free (ptr); |
1725 | free (ptr); |
1152 | return 0; |
1726 | return 0; |
1153 | #endif |
|
|
1154 | } |
1727 | } |
1155 | |
1728 | |
1156 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1729 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1157 | |
1730 | |
1158 | void ecb_cold |
1731 | ecb_cold |
|
|
1732 | void |
1159 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1733 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1160 | { |
1734 | { |
1161 | alloc = cb; |
1735 | alloc = cb; |
1162 | } |
1736 | } |
1163 | |
1737 | |
… | |
… | |
1332 | struct timespec ts; |
1906 | struct timespec ts; |
1333 | |
1907 | |
1334 | EV_TS_SET (ts, delay); |
1908 | EV_TS_SET (ts, delay); |
1335 | nanosleep (&ts, 0); |
1909 | nanosleep (&ts, 0); |
1336 | #elif defined _WIN32 |
1910 | #elif defined _WIN32 |
|
|
1911 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1912 | /* compared to select (µs) or nanosleep (ns) */ |
1337 | Sleep ((unsigned long)(delay * 1e3)); |
1913 | Sleep ((unsigned long)(delay * 1e3)); |
1338 | #else |
1914 | #else |
1339 | struct timeval tv; |
1915 | struct timeval tv; |
1340 | |
1916 | |
1341 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1917 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1372 | } |
1948 | } |
1373 | |
1949 | |
1374 | return ncur; |
1950 | return ncur; |
1375 | } |
1951 | } |
1376 | |
1952 | |
1377 | static void * noinline ecb_cold |
1953 | noinline ecb_cold |
|
|
1954 | static void * |
1378 | array_realloc (int elem, void *base, int *cur, int cnt) |
1955 | array_realloc (int elem, void *base, int *cur, int cnt) |
1379 | { |
1956 | { |
1380 | *cur = array_nextsize (elem, *cur, cnt); |
1957 | *cur = array_nextsize (elem, *cur, cnt); |
1381 | return ev_realloc (base, elem * *cur); |
1958 | return ev_realloc (base, elem * *cur); |
1382 | } |
1959 | } |
… | |
… | |
1385 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1962 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1386 | |
1963 | |
1387 | #define array_needsize(type,base,cur,cnt,init) \ |
1964 | #define array_needsize(type,base,cur,cnt,init) \ |
1388 | if (expect_false ((cnt) > (cur))) \ |
1965 | if (expect_false ((cnt) > (cur))) \ |
1389 | { \ |
1966 | { \ |
1390 | int ecb_unused ocur_ = (cur); \ |
1967 | ecb_unused int ocur_ = (cur); \ |
1391 | (base) = (type *)array_realloc \ |
1968 | (base) = (type *)array_realloc \ |
1392 | (sizeof (type), (base), &(cur), (cnt)); \ |
1969 | (sizeof (type), (base), &(cur), (cnt)); \ |
1393 | init ((base) + (ocur_), (cur) - ocur_); \ |
1970 | init ((base) + (ocur_), (cur) - ocur_); \ |
1394 | } |
1971 | } |
1395 | |
1972 | |
… | |
… | |
1407 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1984 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1408 | |
1985 | |
1409 | /*****************************************************************************/ |
1986 | /*****************************************************************************/ |
1410 | |
1987 | |
1411 | /* dummy callback for pending events */ |
1988 | /* dummy callback for pending events */ |
1412 | static void noinline |
1989 | noinline |
|
|
1990 | static void |
1413 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1991 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1414 | { |
1992 | { |
1415 | } |
1993 | } |
1416 | |
1994 | |
1417 | void noinline |
1995 | noinline |
|
|
1996 | void |
1418 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1997 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1419 | { |
1998 | { |
1420 | W w_ = (W)w; |
1999 | W w_ = (W)w; |
1421 | int pri = ABSPRI (w_); |
2000 | int pri = ABSPRI (w_); |
1422 | |
2001 | |
… | |
… | |
1552 | |
2131 | |
1553 | fdchangecnt = 0; |
2132 | fdchangecnt = 0; |
1554 | } |
2133 | } |
1555 | |
2134 | |
1556 | /* something about the given fd changed */ |
2135 | /* something about the given fd changed */ |
1557 | inline_size void |
2136 | inline_size |
|
|
2137 | void |
1558 | fd_change (EV_P_ int fd, int flags) |
2138 | fd_change (EV_P_ int fd, int flags) |
1559 | { |
2139 | { |
1560 | unsigned char reify = anfds [fd].reify; |
2140 | unsigned char reify = anfds [fd].reify; |
1561 | anfds [fd].reify |= flags; |
2141 | anfds [fd].reify |= flags; |
1562 | |
2142 | |
… | |
… | |
1567 | fdchanges [fdchangecnt - 1] = fd; |
2147 | fdchanges [fdchangecnt - 1] = fd; |
1568 | } |
2148 | } |
1569 | } |
2149 | } |
1570 | |
2150 | |
1571 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2151 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1572 | inline_speed void ecb_cold |
2152 | inline_speed ecb_cold void |
1573 | fd_kill (EV_P_ int fd) |
2153 | fd_kill (EV_P_ int fd) |
1574 | { |
2154 | { |
1575 | ev_io *w; |
2155 | ev_io *w; |
1576 | |
2156 | |
1577 | while ((w = (ev_io *)anfds [fd].head)) |
2157 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1580 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2160 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1581 | } |
2161 | } |
1582 | } |
2162 | } |
1583 | |
2163 | |
1584 | /* check whether the given fd is actually valid, for error recovery */ |
2164 | /* check whether the given fd is actually valid, for error recovery */ |
1585 | inline_size int ecb_cold |
2165 | inline_size ecb_cold int |
1586 | fd_valid (int fd) |
2166 | fd_valid (int fd) |
1587 | { |
2167 | { |
1588 | #ifdef _WIN32 |
2168 | #ifdef _WIN32 |
1589 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2169 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1590 | #else |
2170 | #else |
1591 | return fcntl (fd, F_GETFD) != -1; |
2171 | return fcntl (fd, F_GETFD) != -1; |
1592 | #endif |
2172 | #endif |
1593 | } |
2173 | } |
1594 | |
2174 | |
1595 | /* called on EBADF to verify fds */ |
2175 | /* called on EBADF to verify fds */ |
1596 | static void noinline ecb_cold |
2176 | noinline ecb_cold |
|
|
2177 | static void |
1597 | fd_ebadf (EV_P) |
2178 | fd_ebadf (EV_P) |
1598 | { |
2179 | { |
1599 | int fd; |
2180 | int fd; |
1600 | |
2181 | |
1601 | for (fd = 0; fd < anfdmax; ++fd) |
2182 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1603 | if (!fd_valid (fd) && errno == EBADF) |
2184 | if (!fd_valid (fd) && errno == EBADF) |
1604 | fd_kill (EV_A_ fd); |
2185 | fd_kill (EV_A_ fd); |
1605 | } |
2186 | } |
1606 | |
2187 | |
1607 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2188 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1608 | static void noinline ecb_cold |
2189 | noinline ecb_cold |
|
|
2190 | static void |
1609 | fd_enomem (EV_P) |
2191 | fd_enomem (EV_P) |
1610 | { |
2192 | { |
1611 | int fd; |
2193 | int fd; |
1612 | |
2194 | |
1613 | for (fd = anfdmax; fd--; ) |
2195 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1617 | break; |
2199 | break; |
1618 | } |
2200 | } |
1619 | } |
2201 | } |
1620 | |
2202 | |
1621 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2203 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1622 | static void noinline |
2204 | noinline |
|
|
2205 | static void |
1623 | fd_rearm_all (EV_P) |
2206 | fd_rearm_all (EV_P) |
1624 | { |
2207 | { |
1625 | int fd; |
2208 | int fd; |
1626 | |
2209 | |
1627 | for (fd = 0; fd < anfdmax; ++fd) |
2210 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1808 | |
2391 | |
1809 | /*****************************************************************************/ |
2392 | /*****************************************************************************/ |
1810 | |
2393 | |
1811 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2394 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1812 | |
2395 | |
1813 | static void noinline ecb_cold |
2396 | noinline ecb_cold |
|
|
2397 | static void |
1814 | evpipe_init (EV_P) |
2398 | evpipe_init (EV_P) |
1815 | { |
2399 | { |
1816 | if (!ev_is_active (&pipe_w)) |
2400 | if (!ev_is_active (&pipe_w)) |
1817 | { |
2401 | { |
|
|
2402 | int fds [2]; |
|
|
2403 | |
1818 | # if EV_USE_EVENTFD |
2404 | # if EV_USE_EVENTFD |
|
|
2405 | fds [0] = -1; |
1819 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2406 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1820 | if (evfd < 0 && errno == EINVAL) |
2407 | if (fds [1] < 0 && errno == EINVAL) |
1821 | evfd = eventfd (0, 0); |
2408 | fds [1] = eventfd (0, 0); |
1822 | |
2409 | |
1823 | if (evfd >= 0) |
2410 | if (fds [1] < 0) |
1824 | { |
|
|
1825 | evpipe [0] = -1; |
|
|
1826 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1827 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1828 | } |
|
|
1829 | else |
|
|
1830 | # endif |
2411 | # endif |
1831 | { |
2412 | { |
1832 | while (pipe (evpipe)) |
2413 | while (pipe (fds)) |
1833 | ev_syserr ("(libev) error creating signal/async pipe"); |
2414 | ev_syserr ("(libev) error creating signal/async pipe"); |
1834 | |
2415 | |
1835 | fd_intern (evpipe [0]); |
2416 | fd_intern (fds [0]); |
1836 | fd_intern (evpipe [1]); |
|
|
1837 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1838 | } |
2417 | } |
1839 | |
2418 | |
|
|
2419 | evpipe [0] = fds [0]; |
|
|
2420 | |
|
|
2421 | if (evpipe [1] < 0) |
|
|
2422 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2423 | else |
|
|
2424 | { |
|
|
2425 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2426 | /* so that evpipe_write can always rely on its value. */ |
|
|
2427 | /* this branch does not do anything sensible on windows, */ |
|
|
2428 | /* so must not be executed on windows */ |
|
|
2429 | |
|
|
2430 | dup2 (fds [1], evpipe [1]); |
|
|
2431 | close (fds [1]); |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | fd_intern (evpipe [1]); |
|
|
2435 | |
|
|
2436 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1840 | ev_io_start (EV_A_ &pipe_w); |
2437 | ev_io_start (EV_A_ &pipe_w); |
1841 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2438 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1842 | } |
2439 | } |
1843 | } |
2440 | } |
1844 | |
2441 | |
… | |
… | |
1849 | |
2446 | |
1850 | if (expect_true (*flag)) |
2447 | if (expect_true (*flag)) |
1851 | return; |
2448 | return; |
1852 | |
2449 | |
1853 | *flag = 1; |
2450 | *flag = 1; |
1854 | |
|
|
1855 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2451 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
1856 | |
2452 | |
1857 | pipe_write_skipped = 1; |
2453 | pipe_write_skipped = 1; |
1858 | |
2454 | |
1859 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
2455 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
1860 | |
2456 | |
1861 | if (pipe_write_wanted) |
2457 | if (pipe_write_wanted) |
1862 | { |
2458 | { |
1863 | int old_errno; |
2459 | int old_errno; |
1864 | |
2460 | |
1865 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
2461 | pipe_write_skipped = 0; |
|
|
2462 | ECB_MEMORY_FENCE_RELEASE; |
1866 | |
2463 | |
1867 | old_errno = errno; /* save errno because write will clobber it */ |
2464 | old_errno = errno; /* save errno because write will clobber it */ |
1868 | |
2465 | |
1869 | #if EV_USE_EVENTFD |
2466 | #if EV_USE_EVENTFD |
1870 | if (evfd >= 0) |
2467 | if (evpipe [0] < 0) |
1871 | { |
2468 | { |
1872 | uint64_t counter = 1; |
2469 | uint64_t counter = 1; |
1873 | write (evfd, &counter, sizeof (uint64_t)); |
2470 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1874 | } |
2471 | } |
1875 | else |
2472 | else |
1876 | #endif |
2473 | #endif |
1877 | { |
2474 | { |
1878 | #ifdef _WIN32 |
2475 | #ifdef _WIN32 |
… | |
… | |
1898 | int i; |
2495 | int i; |
1899 | |
2496 | |
1900 | if (revents & EV_READ) |
2497 | if (revents & EV_READ) |
1901 | { |
2498 | { |
1902 | #if EV_USE_EVENTFD |
2499 | #if EV_USE_EVENTFD |
1903 | if (evfd >= 0) |
2500 | if (evpipe [0] < 0) |
1904 | { |
2501 | { |
1905 | uint64_t counter; |
2502 | uint64_t counter; |
1906 | read (evfd, &counter, sizeof (uint64_t)); |
2503 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1907 | } |
2504 | } |
1908 | else |
2505 | else |
1909 | #endif |
2506 | #endif |
1910 | { |
2507 | { |
1911 | char dummy[4]; |
2508 | char dummy[4]; |
… | |
… | |
1929 | #if EV_SIGNAL_ENABLE |
2526 | #if EV_SIGNAL_ENABLE |
1930 | if (sig_pending) |
2527 | if (sig_pending) |
1931 | { |
2528 | { |
1932 | sig_pending = 0; |
2529 | sig_pending = 0; |
1933 | |
2530 | |
1934 | ECB_MEMORY_FENCE_RELEASE; |
2531 | ECB_MEMORY_FENCE; |
1935 | |
2532 | |
1936 | for (i = EV_NSIG - 1; i--; ) |
2533 | for (i = EV_NSIG - 1; i--; ) |
1937 | if (expect_false (signals [i].pending)) |
2534 | if (expect_false (signals [i].pending)) |
1938 | ev_feed_signal_event (EV_A_ i + 1); |
2535 | ev_feed_signal_event (EV_A_ i + 1); |
1939 | } |
2536 | } |
… | |
… | |
1942 | #if EV_ASYNC_ENABLE |
2539 | #if EV_ASYNC_ENABLE |
1943 | if (async_pending) |
2540 | if (async_pending) |
1944 | { |
2541 | { |
1945 | async_pending = 0; |
2542 | async_pending = 0; |
1946 | |
2543 | |
1947 | ECB_MEMORY_FENCE_RELEASE; |
2544 | ECB_MEMORY_FENCE; |
1948 | |
2545 | |
1949 | for (i = asynccnt; i--; ) |
2546 | for (i = asynccnt; i--; ) |
1950 | if (asyncs [i]->sent) |
2547 | if (asyncs [i]->sent) |
1951 | { |
2548 | { |
1952 | asyncs [i]->sent = 0; |
2549 | asyncs [i]->sent = 0; |
|
|
2550 | ECB_MEMORY_FENCE_RELEASE; |
1953 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2551 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1954 | } |
2552 | } |
1955 | } |
2553 | } |
1956 | #endif |
2554 | #endif |
1957 | } |
2555 | } |
… | |
… | |
1960 | |
2558 | |
1961 | void |
2559 | void |
1962 | ev_feed_signal (int signum) EV_THROW |
2560 | ev_feed_signal (int signum) EV_THROW |
1963 | { |
2561 | { |
1964 | #if EV_MULTIPLICITY |
2562 | #if EV_MULTIPLICITY |
|
|
2563 | EV_P; |
|
|
2564 | ECB_MEMORY_FENCE_ACQUIRE; |
1965 | EV_P = signals [signum - 1].loop; |
2565 | EV_A = signals [signum - 1].loop; |
1966 | |
2566 | |
1967 | if (!EV_A) |
2567 | if (!EV_A) |
1968 | return; |
2568 | return; |
1969 | #endif |
2569 | #endif |
1970 | |
2570 | |
1971 | if (!ev_active (&pipe_w)) |
|
|
1972 | return; |
|
|
1973 | |
|
|
1974 | signals [signum - 1].pending = 1; |
2571 | signals [signum - 1].pending = 1; |
1975 | evpipe_write (EV_A_ &sig_pending); |
2572 | evpipe_write (EV_A_ &sig_pending); |
1976 | } |
2573 | } |
1977 | |
2574 | |
1978 | static void |
2575 | static void |
… | |
… | |
1983 | #endif |
2580 | #endif |
1984 | |
2581 | |
1985 | ev_feed_signal (signum); |
2582 | ev_feed_signal (signum); |
1986 | } |
2583 | } |
1987 | |
2584 | |
1988 | void noinline |
2585 | noinline |
|
|
2586 | void |
1989 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2587 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1990 | { |
2588 | { |
1991 | WL w; |
2589 | WL w; |
1992 | |
2590 | |
1993 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2591 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1994 | return; |
2592 | return; |
1995 | |
2593 | |
1996 | --signum; |
2594 | --signum; |
1997 | |
2595 | |
1998 | #if EV_MULTIPLICITY |
2596 | #if EV_MULTIPLICITY |
… | |
… | |
2002 | if (expect_false (signals [signum].loop != EV_A)) |
2600 | if (expect_false (signals [signum].loop != EV_A)) |
2003 | return; |
2601 | return; |
2004 | #endif |
2602 | #endif |
2005 | |
2603 | |
2006 | signals [signum].pending = 0; |
2604 | signals [signum].pending = 0; |
|
|
2605 | ECB_MEMORY_FENCE_RELEASE; |
2007 | |
2606 | |
2008 | for (w = signals [signum].head; w; w = w->next) |
2607 | for (w = signals [signum].head; w; w = w->next) |
2009 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2608 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2010 | } |
2609 | } |
2011 | |
2610 | |
… | |
… | |
2109 | #endif |
2708 | #endif |
2110 | #if EV_USE_SELECT |
2709 | #if EV_USE_SELECT |
2111 | # include "ev_select.c" |
2710 | # include "ev_select.c" |
2112 | #endif |
2711 | #endif |
2113 | |
2712 | |
2114 | int ecb_cold |
2713 | ecb_cold int |
2115 | ev_version_major (void) EV_THROW |
2714 | ev_version_major (void) EV_THROW |
2116 | { |
2715 | { |
2117 | return EV_VERSION_MAJOR; |
2716 | return EV_VERSION_MAJOR; |
2118 | } |
2717 | } |
2119 | |
2718 | |
2120 | int ecb_cold |
2719 | ecb_cold int |
2121 | ev_version_minor (void) EV_THROW |
2720 | ev_version_minor (void) EV_THROW |
2122 | { |
2721 | { |
2123 | return EV_VERSION_MINOR; |
2722 | return EV_VERSION_MINOR; |
2124 | } |
2723 | } |
2125 | |
2724 | |
2126 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2725 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2127 | int inline_size ecb_cold |
2726 | inline_size ecb_cold int |
2128 | enable_secure (void) |
2727 | enable_secure (void) |
2129 | { |
2728 | { |
2130 | #ifdef _WIN32 |
2729 | #ifdef _WIN32 |
2131 | return 0; |
2730 | return 0; |
2132 | #else |
2731 | #else |
2133 | return getuid () != geteuid () |
2732 | return getuid () != geteuid () |
2134 | || getgid () != getegid (); |
2733 | || getgid () != getegid (); |
2135 | #endif |
2734 | #endif |
2136 | } |
2735 | } |
2137 | |
2736 | |
2138 | unsigned int ecb_cold |
2737 | ecb_cold |
|
|
2738 | unsigned int |
2139 | ev_supported_backends (void) EV_THROW |
2739 | ev_supported_backends (void) EV_THROW |
2140 | { |
2740 | { |
2141 | unsigned int flags = 0; |
2741 | unsigned int flags = 0; |
2142 | |
2742 | |
2143 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2743 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
2147 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2747 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2148 | |
2748 | |
2149 | return flags; |
2749 | return flags; |
2150 | } |
2750 | } |
2151 | |
2751 | |
2152 | unsigned int ecb_cold |
2752 | ecb_cold |
|
|
2753 | unsigned int |
2153 | ev_recommended_backends (void) EV_THROW |
2754 | ev_recommended_backends (void) EV_THROW |
2154 | { |
2755 | { |
2155 | unsigned int flags = ev_supported_backends (); |
2756 | unsigned int flags = ev_supported_backends (); |
2156 | |
2757 | |
2157 | #ifndef __NetBSD__ |
2758 | #ifndef __NetBSD__ |
… | |
… | |
2169 | #endif |
2770 | #endif |
2170 | |
2771 | |
2171 | return flags; |
2772 | return flags; |
2172 | } |
2773 | } |
2173 | |
2774 | |
2174 | unsigned int ecb_cold |
2775 | ecb_cold |
|
|
2776 | unsigned int |
2175 | ev_embeddable_backends (void) EV_THROW |
2777 | ev_embeddable_backends (void) EV_THROW |
2176 | { |
2778 | { |
2177 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2779 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2178 | |
2780 | |
2179 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2781 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
… | |
… | |
2225 | { |
2827 | { |
2226 | return userdata; |
2828 | return userdata; |
2227 | } |
2829 | } |
2228 | |
2830 | |
2229 | void |
2831 | void |
2230 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2832 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2231 | { |
2833 | { |
2232 | invoke_cb = invoke_pending_cb; |
2834 | invoke_cb = invoke_pending_cb; |
2233 | } |
2835 | } |
2234 | |
2836 | |
2235 | void |
2837 | void |
… | |
… | |
2239 | acquire_cb = acquire; |
2841 | acquire_cb = acquire; |
2240 | } |
2842 | } |
2241 | #endif |
2843 | #endif |
2242 | |
2844 | |
2243 | /* initialise a loop structure, must be zero-initialised */ |
2845 | /* initialise a loop structure, must be zero-initialised */ |
2244 | static void noinline ecb_cold |
2846 | noinline ecb_cold |
|
|
2847 | static void |
2245 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2848 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2246 | { |
2849 | { |
2247 | if (!backend) |
2850 | if (!backend) |
2248 | { |
2851 | { |
2249 | origflags = flags; |
2852 | origflags = flags; |
… | |
… | |
2295 | #if EV_ASYNC_ENABLE |
2898 | #if EV_ASYNC_ENABLE |
2296 | async_pending = 0; |
2899 | async_pending = 0; |
2297 | #endif |
2900 | #endif |
2298 | pipe_write_skipped = 0; |
2901 | pipe_write_skipped = 0; |
2299 | pipe_write_wanted = 0; |
2902 | pipe_write_wanted = 0; |
|
|
2903 | evpipe [0] = -1; |
|
|
2904 | evpipe [1] = -1; |
2300 | #if EV_USE_INOTIFY |
2905 | #if EV_USE_INOTIFY |
2301 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2906 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2302 | #endif |
2907 | #endif |
2303 | #if EV_USE_SIGNALFD |
2908 | #if EV_USE_SIGNALFD |
2304 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2909 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2334 | #endif |
2939 | #endif |
2335 | } |
2940 | } |
2336 | } |
2941 | } |
2337 | |
2942 | |
2338 | /* free up a loop structure */ |
2943 | /* free up a loop structure */ |
2339 | void ecb_cold |
2944 | ecb_cold |
|
|
2945 | void |
2340 | ev_loop_destroy (EV_P) |
2946 | ev_loop_destroy (EV_P) |
2341 | { |
2947 | { |
2342 | int i; |
2948 | int i; |
2343 | |
2949 | |
2344 | #if EV_MULTIPLICITY |
2950 | #if EV_MULTIPLICITY |
… | |
… | |
2367 | if (ev_is_active (&pipe_w)) |
2973 | if (ev_is_active (&pipe_w)) |
2368 | { |
2974 | { |
2369 | /*ev_ref (EV_A);*/ |
2975 | /*ev_ref (EV_A);*/ |
2370 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2976 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2371 | |
2977 | |
2372 | #if EV_USE_EVENTFD |
|
|
2373 | if (evfd >= 0) |
|
|
2374 | close (evfd); |
|
|
2375 | #endif |
|
|
2376 | |
|
|
2377 | if (evpipe [0] >= 0) |
|
|
2378 | { |
|
|
2379 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2978 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2380 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2979 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2381 | } |
|
|
2382 | } |
2980 | } |
2383 | |
2981 | |
2384 | #if EV_USE_SIGNALFD |
2982 | #if EV_USE_SIGNALFD |
2385 | if (ev_is_active (&sigfd_w)) |
2983 | if (ev_is_active (&sigfd_w)) |
2386 | close (sigfd); |
2984 | close (sigfd); |
… | |
… | |
2472 | #endif |
3070 | #endif |
2473 | #if EV_USE_INOTIFY |
3071 | #if EV_USE_INOTIFY |
2474 | infy_fork (EV_A); |
3072 | infy_fork (EV_A); |
2475 | #endif |
3073 | #endif |
2476 | |
3074 | |
|
|
3075 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2477 | if (ev_is_active (&pipe_w)) |
3076 | if (ev_is_active (&pipe_w) && postfork != 2) |
2478 | { |
3077 | { |
2479 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3078 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2480 | |
3079 | |
2481 | ev_ref (EV_A); |
3080 | ev_ref (EV_A); |
2482 | ev_io_stop (EV_A_ &pipe_w); |
3081 | ev_io_stop (EV_A_ &pipe_w); |
2483 | |
3082 | |
2484 | #if EV_USE_EVENTFD |
|
|
2485 | if (evfd >= 0) |
|
|
2486 | close (evfd); |
|
|
2487 | #endif |
|
|
2488 | |
|
|
2489 | if (evpipe [0] >= 0) |
3083 | if (evpipe [0] >= 0) |
2490 | { |
|
|
2491 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3084 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2492 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2493 | } |
|
|
2494 | |
3085 | |
2495 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2496 | evpipe_init (EV_A); |
3086 | evpipe_init (EV_A); |
2497 | /* now iterate over everything, in case we missed something */ |
3087 | /* iterate over everything, in case we missed something before */ |
2498 | pipecb (EV_A_ &pipe_w, EV_READ); |
3088 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2499 | #endif |
|
|
2500 | } |
3089 | } |
|
|
3090 | #endif |
2501 | |
3091 | |
2502 | postfork = 0; |
3092 | postfork = 0; |
2503 | } |
3093 | } |
2504 | |
3094 | |
2505 | #if EV_MULTIPLICITY |
3095 | #if EV_MULTIPLICITY |
2506 | |
3096 | |
|
|
3097 | ecb_cold |
2507 | struct ev_loop * ecb_cold |
3098 | struct ev_loop * |
2508 | ev_loop_new (unsigned int flags) EV_THROW |
3099 | ev_loop_new (unsigned int flags) EV_THROW |
2509 | { |
3100 | { |
2510 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3101 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2511 | |
3102 | |
2512 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3103 | memset (EV_A, 0, sizeof (struct ev_loop)); |
… | |
… | |
2520 | } |
3111 | } |
2521 | |
3112 | |
2522 | #endif /* multiplicity */ |
3113 | #endif /* multiplicity */ |
2523 | |
3114 | |
2524 | #if EV_VERIFY |
3115 | #if EV_VERIFY |
2525 | static void noinline ecb_cold |
3116 | noinline ecb_cold |
|
|
3117 | static void |
2526 | verify_watcher (EV_P_ W w) |
3118 | verify_watcher (EV_P_ W w) |
2527 | { |
3119 | { |
2528 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3120 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2529 | |
3121 | |
2530 | if (w->pending) |
3122 | if (w->pending) |
2531 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3123 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2532 | } |
3124 | } |
2533 | |
3125 | |
2534 | static void noinline ecb_cold |
3126 | noinline ecb_cold |
|
|
3127 | static void |
2535 | verify_heap (EV_P_ ANHE *heap, int N) |
3128 | verify_heap (EV_P_ ANHE *heap, int N) |
2536 | { |
3129 | { |
2537 | int i; |
3130 | int i; |
2538 | |
3131 | |
2539 | for (i = HEAP0; i < N + HEAP0; ++i) |
3132 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2544 | |
3137 | |
2545 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3138 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2546 | } |
3139 | } |
2547 | } |
3140 | } |
2548 | |
3141 | |
2549 | static void noinline ecb_cold |
3142 | noinline ecb_cold |
|
|
3143 | static void |
2550 | array_verify (EV_P_ W *ws, int cnt) |
3144 | array_verify (EV_P_ W *ws, int cnt) |
2551 | { |
3145 | { |
2552 | while (cnt--) |
3146 | while (cnt--) |
2553 | { |
3147 | { |
2554 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3148 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2643 | #endif |
3237 | #endif |
2644 | } |
3238 | } |
2645 | #endif |
3239 | #endif |
2646 | |
3240 | |
2647 | #if EV_MULTIPLICITY |
3241 | #if EV_MULTIPLICITY |
|
|
3242 | ecb_cold |
2648 | struct ev_loop * ecb_cold |
3243 | struct ev_loop * |
2649 | #else |
3244 | #else |
2650 | int |
3245 | int |
2651 | #endif |
3246 | #endif |
2652 | ev_default_loop (unsigned int flags) EV_THROW |
3247 | ev_default_loop (unsigned int flags) EV_THROW |
2653 | { |
3248 | { |
… | |
… | |
2678 | } |
3273 | } |
2679 | |
3274 | |
2680 | void |
3275 | void |
2681 | ev_loop_fork (EV_P) EV_THROW |
3276 | ev_loop_fork (EV_P) EV_THROW |
2682 | { |
3277 | { |
2683 | postfork = 1; /* must be in line with ev_default_fork */ |
3278 | postfork = 1; |
2684 | } |
3279 | } |
2685 | |
3280 | |
2686 | /*****************************************************************************/ |
3281 | /*****************************************************************************/ |
2687 | |
3282 | |
2688 | void |
3283 | void |
… | |
… | |
2701 | count += pendingcnt [pri]; |
3296 | count += pendingcnt [pri]; |
2702 | |
3297 | |
2703 | return count; |
3298 | return count; |
2704 | } |
3299 | } |
2705 | |
3300 | |
2706 | void noinline |
3301 | noinline |
|
|
3302 | void |
2707 | ev_invoke_pending (EV_P) |
3303 | ev_invoke_pending (EV_P) |
2708 | { |
3304 | { |
2709 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
3305 | pendingpri = NUMPRI; |
|
|
3306 | |
|
|
3307 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3308 | { |
|
|
3309 | --pendingpri; |
|
|
3310 | |
2710 | while (pendingcnt [pendingpri]) |
3311 | while (pendingcnt [pendingpri]) |
2711 | { |
3312 | { |
2712 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3313 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2713 | |
3314 | |
2714 | p->w->pending = 0; |
3315 | p->w->pending = 0; |
2715 | EV_CB_INVOKE (p->w, p->events); |
3316 | EV_CB_INVOKE (p->w, p->events); |
2716 | EV_FREQUENT_CHECK; |
3317 | EV_FREQUENT_CHECK; |
2717 | } |
3318 | } |
|
|
3319 | } |
2718 | } |
3320 | } |
2719 | |
3321 | |
2720 | #if EV_IDLE_ENABLE |
3322 | #if EV_IDLE_ENABLE |
2721 | /* make idle watchers pending. this handles the "call-idle */ |
3323 | /* make idle watchers pending. this handles the "call-idle */ |
2722 | /* only when higher priorities are idle" logic */ |
3324 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2780 | } |
3382 | } |
2781 | } |
3383 | } |
2782 | |
3384 | |
2783 | #if EV_PERIODIC_ENABLE |
3385 | #if EV_PERIODIC_ENABLE |
2784 | |
3386 | |
2785 | static void noinline |
3387 | noinline |
|
|
3388 | static void |
2786 | periodic_recalc (EV_P_ ev_periodic *w) |
3389 | periodic_recalc (EV_P_ ev_periodic *w) |
2787 | { |
3390 | { |
2788 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3391 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2789 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3392 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2790 | |
3393 | |
… | |
… | |
2848 | } |
3451 | } |
2849 | } |
3452 | } |
2850 | |
3453 | |
2851 | /* simply recalculate all periodics */ |
3454 | /* simply recalculate all periodics */ |
2852 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3455 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2853 | static void noinline ecb_cold |
3456 | noinline ecb_cold |
|
|
3457 | static void |
2854 | periodics_reschedule (EV_P) |
3458 | periodics_reschedule (EV_P) |
2855 | { |
3459 | { |
2856 | int i; |
3460 | int i; |
2857 | |
3461 | |
2858 | /* adjust periodics after time jump */ |
3462 | /* adjust periodics after time jump */ |
… | |
… | |
2871 | reheap (periodics, periodiccnt); |
3475 | reheap (periodics, periodiccnt); |
2872 | } |
3476 | } |
2873 | #endif |
3477 | #endif |
2874 | |
3478 | |
2875 | /* adjust all timers by a given offset */ |
3479 | /* adjust all timers by a given offset */ |
2876 | static void noinline ecb_cold |
3480 | noinline ecb_cold |
|
|
3481 | static void |
2877 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3482 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2878 | { |
3483 | { |
2879 | int i; |
3484 | int i; |
2880 | |
3485 | |
2881 | for (i = 0; i < timercnt; ++i) |
3486 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3080 | backend_poll (EV_A_ waittime); |
3685 | backend_poll (EV_A_ waittime); |
3081 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3686 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3082 | |
3687 | |
3083 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3688 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3084 | |
3689 | |
|
|
3690 | ECB_MEMORY_FENCE_ACQUIRE; |
3085 | if (pipe_write_skipped) |
3691 | if (pipe_write_skipped) |
3086 | { |
3692 | { |
3087 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3693 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3088 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3694 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3089 | } |
3695 | } |
… | |
… | |
3248 | w->active = 0; |
3854 | w->active = 0; |
3249 | } |
3855 | } |
3250 | |
3856 | |
3251 | /*****************************************************************************/ |
3857 | /*****************************************************************************/ |
3252 | |
3858 | |
3253 | void noinline |
3859 | noinline |
|
|
3860 | void |
3254 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3861 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3255 | { |
3862 | { |
3256 | int fd = w->fd; |
3863 | int fd = w->fd; |
3257 | |
3864 | |
3258 | if (expect_false (ev_is_active (w))) |
3865 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3274 | w->events &= ~EV__IOFDSET; |
3881 | w->events &= ~EV__IOFDSET; |
3275 | |
3882 | |
3276 | EV_FREQUENT_CHECK; |
3883 | EV_FREQUENT_CHECK; |
3277 | } |
3884 | } |
3278 | |
3885 | |
3279 | void noinline |
3886 | noinline |
|
|
3887 | void |
3280 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3888 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3281 | { |
3889 | { |
3282 | clear_pending (EV_A_ (W)w); |
3890 | clear_pending (EV_A_ (W)w); |
3283 | if (expect_false (!ev_is_active (w))) |
3891 | if (expect_false (!ev_is_active (w))) |
3284 | return; |
3892 | return; |
… | |
… | |
3293 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3901 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3294 | |
3902 | |
3295 | EV_FREQUENT_CHECK; |
3903 | EV_FREQUENT_CHECK; |
3296 | } |
3904 | } |
3297 | |
3905 | |
3298 | void noinline |
3906 | noinline |
|
|
3907 | void |
3299 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3908 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3300 | { |
3909 | { |
3301 | if (expect_false (ev_is_active (w))) |
3910 | if (expect_false (ev_is_active (w))) |
3302 | return; |
3911 | return; |
3303 | |
3912 | |
… | |
… | |
3317 | EV_FREQUENT_CHECK; |
3926 | EV_FREQUENT_CHECK; |
3318 | |
3927 | |
3319 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3928 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3320 | } |
3929 | } |
3321 | |
3930 | |
3322 | void noinline |
3931 | noinline |
|
|
3932 | void |
3323 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3933 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3324 | { |
3934 | { |
3325 | clear_pending (EV_A_ (W)w); |
3935 | clear_pending (EV_A_ (W)w); |
3326 | if (expect_false (!ev_is_active (w))) |
3936 | if (expect_false (!ev_is_active (w))) |
3327 | return; |
3937 | return; |
… | |
… | |
3347 | ev_stop (EV_A_ (W)w); |
3957 | ev_stop (EV_A_ (W)w); |
3348 | |
3958 | |
3349 | EV_FREQUENT_CHECK; |
3959 | EV_FREQUENT_CHECK; |
3350 | } |
3960 | } |
3351 | |
3961 | |
3352 | void noinline |
3962 | noinline |
|
|
3963 | void |
3353 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3964 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3354 | { |
3965 | { |
3355 | EV_FREQUENT_CHECK; |
3966 | EV_FREQUENT_CHECK; |
3356 | |
3967 | |
3357 | clear_pending (EV_A_ (W)w); |
3968 | clear_pending (EV_A_ (W)w); |
… | |
… | |
3381 | { |
3992 | { |
3382 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3993 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3383 | } |
3994 | } |
3384 | |
3995 | |
3385 | #if EV_PERIODIC_ENABLE |
3996 | #if EV_PERIODIC_ENABLE |
3386 | void noinline |
3997 | noinline |
|
|
3998 | void |
3387 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3999 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3388 | { |
4000 | { |
3389 | if (expect_false (ev_is_active (w))) |
4001 | if (expect_false (ev_is_active (w))) |
3390 | return; |
4002 | return; |
3391 | |
4003 | |
… | |
… | |
3411 | EV_FREQUENT_CHECK; |
4023 | EV_FREQUENT_CHECK; |
3412 | |
4024 | |
3413 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4025 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3414 | } |
4026 | } |
3415 | |
4027 | |
3416 | void noinline |
4028 | noinline |
|
|
4029 | void |
3417 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4030 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3418 | { |
4031 | { |
3419 | clear_pending (EV_A_ (W)w); |
4032 | clear_pending (EV_A_ (W)w); |
3420 | if (expect_false (!ev_is_active (w))) |
4033 | if (expect_false (!ev_is_active (w))) |
3421 | return; |
4034 | return; |
… | |
… | |
3439 | ev_stop (EV_A_ (W)w); |
4052 | ev_stop (EV_A_ (W)w); |
3440 | |
4053 | |
3441 | EV_FREQUENT_CHECK; |
4054 | EV_FREQUENT_CHECK; |
3442 | } |
4055 | } |
3443 | |
4056 | |
3444 | void noinline |
4057 | noinline |
|
|
4058 | void |
3445 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4059 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3446 | { |
4060 | { |
3447 | /* TODO: use adjustheap and recalculation */ |
4061 | /* TODO: use adjustheap and recalculation */ |
3448 | ev_periodic_stop (EV_A_ w); |
4062 | ev_periodic_stop (EV_A_ w); |
3449 | ev_periodic_start (EV_A_ w); |
4063 | ev_periodic_start (EV_A_ w); |
… | |
… | |
3454 | # define SA_RESTART 0 |
4068 | # define SA_RESTART 0 |
3455 | #endif |
4069 | #endif |
3456 | |
4070 | |
3457 | #if EV_SIGNAL_ENABLE |
4071 | #if EV_SIGNAL_ENABLE |
3458 | |
4072 | |
3459 | void noinline |
4073 | noinline |
|
|
4074 | void |
3460 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4075 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3461 | { |
4076 | { |
3462 | if (expect_false (ev_is_active (w))) |
4077 | if (expect_false (ev_is_active (w))) |
3463 | return; |
4078 | return; |
3464 | |
4079 | |
… | |
… | |
3467 | #if EV_MULTIPLICITY |
4082 | #if EV_MULTIPLICITY |
3468 | assert (("libev: a signal must not be attached to two different loops", |
4083 | assert (("libev: a signal must not be attached to two different loops", |
3469 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4084 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3470 | |
4085 | |
3471 | signals [w->signum - 1].loop = EV_A; |
4086 | signals [w->signum - 1].loop = EV_A; |
|
|
4087 | ECB_MEMORY_FENCE_RELEASE; |
3472 | #endif |
4088 | #endif |
3473 | |
4089 | |
3474 | EV_FREQUENT_CHECK; |
4090 | EV_FREQUENT_CHECK; |
3475 | |
4091 | |
3476 | #if EV_USE_SIGNALFD |
4092 | #if EV_USE_SIGNALFD |
… | |
… | |
3535 | } |
4151 | } |
3536 | |
4152 | |
3537 | EV_FREQUENT_CHECK; |
4153 | EV_FREQUENT_CHECK; |
3538 | } |
4154 | } |
3539 | |
4155 | |
3540 | void noinline |
4156 | noinline |
|
|
4157 | void |
3541 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4158 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3542 | { |
4159 | { |
3543 | clear_pending (EV_A_ (W)w); |
4160 | clear_pending (EV_A_ (W)w); |
3544 | if (expect_false (!ev_is_active (w))) |
4161 | if (expect_false (!ev_is_active (w))) |
3545 | return; |
4162 | return; |
… | |
… | |
3621 | |
4238 | |
3622 | #define DEF_STAT_INTERVAL 5.0074891 |
4239 | #define DEF_STAT_INTERVAL 5.0074891 |
3623 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4240 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3624 | #define MIN_STAT_INTERVAL 0.1074891 |
4241 | #define MIN_STAT_INTERVAL 0.1074891 |
3625 | |
4242 | |
3626 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4243 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3627 | |
4244 | |
3628 | #if EV_USE_INOTIFY |
4245 | #if EV_USE_INOTIFY |
3629 | |
4246 | |
3630 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4247 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3631 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4248 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3632 | |
4249 | |
3633 | static void noinline |
4250 | noinline |
|
|
4251 | static void |
3634 | infy_add (EV_P_ ev_stat *w) |
4252 | infy_add (EV_P_ ev_stat *w) |
3635 | { |
4253 | { |
3636 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
4254 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4255 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4256 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4257 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3637 | |
4258 | |
3638 | if (w->wd >= 0) |
4259 | if (w->wd >= 0) |
3639 | { |
4260 | { |
3640 | struct statfs sfs; |
4261 | struct statfs sfs; |
3641 | |
4262 | |
… | |
… | |
3645 | |
4266 | |
3646 | if (!fs_2625) |
4267 | if (!fs_2625) |
3647 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4268 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3648 | else if (!statfs (w->path, &sfs) |
4269 | else if (!statfs (w->path, &sfs) |
3649 | && (sfs.f_type == 0x1373 /* devfs */ |
4270 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4271 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4272 | || sfs.f_type == 0x4d44 /* msdos */ |
3650 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4273 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4274 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4275 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4276 | || sfs.f_type == 0x5346544e /* ntfs */ |
3651 | || sfs.f_type == 0x3153464a /* jfs */ |
4277 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4278 | || sfs.f_type == 0x9123683e /* btrfs */ |
3652 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4279 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3653 | || sfs.f_type == 0x01021994 /* tempfs */ |
4280 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3654 | || sfs.f_type == 0x58465342 /* xfs */)) |
4281 | || sfs.f_type == 0x58465342 /* xfs */)) |
3655 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4282 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3656 | else |
4283 | else |
3657 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4284 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3658 | } |
4285 | } |
… | |
… | |
3693 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4320 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3694 | ev_timer_again (EV_A_ &w->timer); |
4321 | ev_timer_again (EV_A_ &w->timer); |
3695 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4322 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3696 | } |
4323 | } |
3697 | |
4324 | |
3698 | static void noinline |
4325 | noinline |
|
|
4326 | static void |
3699 | infy_del (EV_P_ ev_stat *w) |
4327 | infy_del (EV_P_ ev_stat *w) |
3700 | { |
4328 | { |
3701 | int slot; |
4329 | int slot; |
3702 | int wd = w->wd; |
4330 | int wd = w->wd; |
3703 | |
4331 | |
… | |
… | |
3710 | |
4338 | |
3711 | /* remove this watcher, if others are watching it, they will rearm */ |
4339 | /* remove this watcher, if others are watching it, they will rearm */ |
3712 | inotify_rm_watch (fs_fd, wd); |
4340 | inotify_rm_watch (fs_fd, wd); |
3713 | } |
4341 | } |
3714 | |
4342 | |
3715 | static void noinline |
4343 | noinline |
|
|
4344 | static void |
3716 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4345 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3717 | { |
4346 | { |
3718 | if (slot < 0) |
4347 | if (slot < 0) |
3719 | /* overflow, need to check for all hash slots */ |
4348 | /* overflow, need to check for all hash slots */ |
3720 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4349 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3756 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4385 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3757 | ofs += sizeof (struct inotify_event) + ev->len; |
4386 | ofs += sizeof (struct inotify_event) + ev->len; |
3758 | } |
4387 | } |
3759 | } |
4388 | } |
3760 | |
4389 | |
3761 | inline_size void ecb_cold |
4390 | inline_size ecb_cold |
|
|
4391 | void |
3762 | ev_check_2625 (EV_P) |
4392 | ev_check_2625 (EV_P) |
3763 | { |
4393 | { |
3764 | /* kernels < 2.6.25 are borked |
4394 | /* kernels < 2.6.25 are borked |
3765 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4395 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3766 | */ |
4396 | */ |
… | |
… | |
3864 | w->attr.st_nlink = 0; |
4494 | w->attr.st_nlink = 0; |
3865 | else if (!w->attr.st_nlink) |
4495 | else if (!w->attr.st_nlink) |
3866 | w->attr.st_nlink = 1; |
4496 | w->attr.st_nlink = 1; |
3867 | } |
4497 | } |
3868 | |
4498 | |
3869 | static void noinline |
4499 | noinline |
|
|
4500 | static void |
3870 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4501 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3871 | { |
4502 | { |
3872 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4503 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3873 | |
4504 | |
3874 | ev_statdata prev = w->attr; |
4505 | ev_statdata prev = w->attr; |
… | |
… | |
4084 | EV_FREQUENT_CHECK; |
4715 | EV_FREQUENT_CHECK; |
4085 | } |
4716 | } |
4086 | #endif |
4717 | #endif |
4087 | |
4718 | |
4088 | #if EV_EMBED_ENABLE |
4719 | #if EV_EMBED_ENABLE |
4089 | void noinline |
4720 | noinline |
|
|
4721 | void |
4090 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4722 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4091 | { |
4723 | { |
4092 | ev_run (w->other, EVRUN_NOWAIT); |
4724 | ev_run (w->other, EVRUN_NOWAIT); |
4093 | } |
4725 | } |
4094 | |
4726 | |
… | |
… | |
4391 | } |
5023 | } |
4392 | |
5024 | |
4393 | /*****************************************************************************/ |
5025 | /*****************************************************************************/ |
4394 | |
5026 | |
4395 | #if EV_WALK_ENABLE |
5027 | #if EV_WALK_ENABLE |
4396 | void ecb_cold |
5028 | ecb_cold |
|
|
5029 | void |
4397 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5030 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
4398 | { |
5031 | { |
4399 | int i, j; |
5032 | int i, j; |
4400 | ev_watcher_list *wl, *wn; |
5033 | ev_watcher_list *wl, *wn; |
4401 | |
5034 | |