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 |
… | |
… | |
201 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
202 | # include <unistd.h> |
202 | # include <unistd.h> |
203 | #else |
203 | #else |
204 | # include <io.h> |
204 | # include <io.h> |
205 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
206 | # include <windows.h> |
207 | # include <windows.h> |
207 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # endif |
210 | # endif |
210 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
240 | #elif defined SIGARRAYSIZE |
241 | #elif defined SIGARRAYSIZE |
241 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | #elif defined _sys_nsig |
243 | #elif defined _sys_nsig |
243 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | #else |
245 | #else |
245 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
246 | /* to make it compile regardless, just remove the above line, */ |
|
|
247 | /* but consider reporting it, too! :) */ |
|
|
248 | # define EV_NSIG 65 |
|
|
249 | #endif |
247 | #endif |
250 | |
248 | |
251 | #ifndef EV_USE_FLOOR |
249 | #ifndef EV_USE_FLOOR |
252 | # define EV_USE_FLOOR 0 |
250 | # define EV_USE_FLOOR 0 |
253 | #endif |
251 | #endif |
254 | |
252 | |
255 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
257 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
258 | # else |
256 | # else |
259 | # 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 |
|
|
264 | # endif |
|
|
265 | # ifndef EV_USE_REALTIME |
|
|
266 | # define EV_USE_REALTIME 0 |
260 | # endif |
267 | # endif |
261 | #endif |
268 | #endif |
262 | |
269 | |
263 | #ifndef EV_USE_MONOTONIC |
270 | #ifndef EV_USE_MONOTONIC |
264 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
271 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
… | |
… | |
354 | # define EV_USE_4HEAP EV_FEATURE_DATA |
361 | # define EV_USE_4HEAP EV_FEATURE_DATA |
355 | #endif |
362 | #endif |
356 | |
363 | |
357 | #ifndef EV_HEAP_CACHE_AT |
364 | #ifndef EV_HEAP_CACHE_AT |
358 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
365 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
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 |
|
|
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 |
|
|
376 | |
|
|
377 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
359 | #endif |
382 | #endif |
360 | |
383 | |
361 | /* 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, */ |
362 | /* which makes programs even slower. might work on other unices, too. */ |
385 | /* which makes programs even slower. might work on other unices, too. */ |
363 | #if EV_USE_CLOCK_SYSCALL |
386 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
372 | # endif |
395 | # endif |
373 | #endif |
396 | #endif |
374 | |
397 | |
375 | /* 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 */ |
376 | |
399 | |
377 | #ifdef _AIX |
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|
378 | /* AIX has a completely broken poll.h header */ |
|
|
379 | # undef EV_USE_POLL |
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|
380 | # define EV_USE_POLL 0 |
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|
381 | #endif |
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382 | |
|
|
383 | #ifndef CLOCK_MONOTONIC |
400 | #ifndef CLOCK_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
401 | # undef EV_USE_MONOTONIC |
385 | # define EV_USE_MONOTONIC 0 |
402 | # define EV_USE_MONOTONIC 0 |
386 | #endif |
403 | #endif |
387 | |
404 | |
… | |
… | |
408 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
425 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | # ifndef IN_DONT_FOLLOW |
426 | # ifndef IN_DONT_FOLLOW |
410 | # undef EV_USE_INOTIFY |
427 | # undef EV_USE_INOTIFY |
411 | # define EV_USE_INOTIFY 0 |
428 | # define EV_USE_INOTIFY 0 |
412 | # endif |
429 | # endif |
413 | #endif |
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|
414 | |
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|
415 | #if EV_SELECT_IS_WINSOCKET |
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|
416 | # include <winsock.h> |
|
|
417 | #endif |
430 | #endif |
418 | |
431 | |
419 | #if EV_USE_EVENTFD |
432 | #if EV_USE_EVENTFD |
420 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
421 | # include <stdint.h> |
434 | # include <stdint.h> |
… | |
… | |
478 | /* 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 */ |
479 | /* ECB.H BEGIN */ |
492 | /* ECB.H BEGIN */ |
480 | /* |
493 | /* |
481 | * libecb - http://software.schmorp.de/pkg/libecb |
494 | * libecb - http://software.schmorp.de/pkg/libecb |
482 | * |
495 | * |
483 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
496 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
484 | * Copyright (©) 2011 Emanuele Giaquinta |
497 | * Copyright (©) 2011 Emanuele Giaquinta |
485 | * All rights reserved. |
498 | * All rights reserved. |
486 | * |
499 | * |
487 | * 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- |
488 | * tion, are permitted provided that the following conditions are met: |
501 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
502 | * 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; |
503 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
516 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
504 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
517 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
505 | * 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 |
506 | * 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. |
507 | */ |
531 | */ |
508 | |
532 | |
509 | #ifndef ECB_H |
533 | #ifndef ECB_H |
510 | #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 |
511 | |
538 | |
512 | #ifdef _WIN32 |
539 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
540 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
541 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
542 | typedef signed short int16_t; |
… | |
… | |
521 | typedef unsigned long long uint64_t; |
548 | typedef unsigned long long uint64_t; |
522 | #else /* _MSC_VER || __BORLANDC__ */ |
549 | #else /* _MSC_VER || __BORLANDC__ */ |
523 | typedef signed __int64 int64_t; |
550 | typedef signed __int64 int64_t; |
524 | typedef unsigned __int64 uint64_t; |
551 | typedef unsigned __int64 uint64_t; |
525 | #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 |
526 | #else |
562 | #else |
527 | #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 |
528 | #endif |
581 | #endif |
529 | |
582 | |
530 | /* many compilers define _GNUC_ to some versions but then only implement |
583 | /* many compilers define _GNUC_ to some versions but then only implement |
531 | * what their idiot authors think are the "more important" extensions, |
584 | * what their idiot authors think are the "more important" extensions, |
532 | * causing enormous grief in return for some better fake benchmark numbers. |
585 | * causing enormous grief in return for some better fake benchmark numbers. |
533 | * or so. |
586 | * or so. |
534 | * 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 |
535 | * 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. |
536 | */ |
589 | */ |
537 | #ifndef ECB_GCC_VERSION |
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538 | #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__ |
539 | #define ECB_GCC_VERSION(major,minor) 0 |
591 | #define ECB_GCC_VERSION(major,minor) 0 |
540 | #else |
592 | #else |
541 | #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))) |
542 | #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 |
543 | #endif |
632 | #endif |
544 | |
633 | |
545 | /*****************************************************************************/ |
634 | /*****************************************************************************/ |
546 | |
635 | |
547 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
636 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
548 | /* 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 */ |
549 | |
638 | |
550 | #if ECB_NO_THREADS |
639 | #if ECB_NO_THREADS |
551 | # define ECB_NO_SMP 1 |
640 | #define ECB_NO_SMP 1 |
552 | #endif |
641 | #endif |
553 | |
642 | |
554 | #if ECB_NO_THREADS || ECB_NO_SMP |
643 | #if ECB_NO_SMP |
555 | #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 */ |
556 | #endif |
654 | #endif |
557 | |
655 | |
558 | #ifndef ECB_MEMORY_FENCE |
656 | #ifndef ECB_MEMORY_FENCE |
559 | #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 |
560 | #if __i386 || __i386__ |
658 | #if __i386 || __i386__ |
561 | #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") |
562 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
660 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
661 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
564 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
662 | #elif ECB_GCC_AMD64 |
565 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
566 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
664 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
567 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
665 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
568 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
666 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
569 | #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 */ |
570 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
675 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
571 | || 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__ |
572 | #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") |
573 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
679 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
574 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
680 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
575 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
681 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
576 | #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) |
577 | #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") |
578 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
686 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
579 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
687 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
580 | #elif defined __s390__ || defined __s390x__ |
688 | #elif defined __s390__ || defined __s390x__ |
581 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
582 | #elif defined __mips__ |
690 | #elif defined __mips__ |
|
|
691 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
692 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
693 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
584 | #elif defined __alpha__ |
694 | #elif defined __alpha__ |
585 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
695 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
696 | #elif defined __hppa__ |
|
|
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") |
586 | #endif |
707 | #endif |
587 | #endif |
708 | #endif |
588 | #endif |
709 | #endif |
589 | |
710 | |
590 | #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 | |
591 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
724 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
592 | #define ECB_MEMORY_FENCE __sync_synchronize () |
725 | #define ECB_MEMORY_FENCE __sync_synchronize () |
593 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
726 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
594 | /*#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() |
595 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
732 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
596 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
733 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
597 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
734 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
598 | #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 */ |
599 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
736 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
609 | #define ECB_MEMORY_FENCE __sync () |
746 | #define ECB_MEMORY_FENCE __sync () |
610 | #endif |
747 | #endif |
611 | #endif |
748 | #endif |
612 | |
749 | |
613 | #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 |
614 | #if !ECB_AVOID_PTHREADS |
768 | #if !ECB_AVOID_PTHREADS |
615 | /* |
769 | /* |
616 | * if you get undefined symbol references to pthread_mutex_lock, |
770 | * if you get undefined symbol references to pthread_mutex_lock, |
617 | * or failure to find pthread.h, then you should implement |
771 | * or failure to find pthread.h, then you should implement |
618 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
772 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
… | |
… | |
636 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
790 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
637 | #endif |
791 | #endif |
638 | |
792 | |
639 | /*****************************************************************************/ |
793 | /*****************************************************************************/ |
640 | |
794 | |
641 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
795 | #if ECB_CPP |
642 | |
|
|
643 | #if __cplusplus |
|
|
644 | #define ecb_inline static inline |
796 | #define ecb_inline static inline |
645 | #elif ECB_GCC_VERSION(2,5) |
797 | #elif ECB_GCC_VERSION(2,5) |
646 | #define ecb_inline static __inline__ |
798 | #define ecb_inline static __inline__ |
647 | #elif ECB_C99 |
799 | #elif ECB_C99 |
648 | #define ecb_inline static inline |
800 | #define ecb_inline static inline |
… | |
… | |
662 | |
814 | |
663 | #define ECB_CONCAT_(a, b) a ## b |
815 | #define ECB_CONCAT_(a, b) a ## b |
664 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
816 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
665 | #define ECB_STRINGIFY_(a) # a |
817 | #define ECB_STRINGIFY_(a) # a |
666 | #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)) |
667 | |
820 | |
668 | #define ecb_function_ ecb_inline |
821 | #define ecb_function_ ecb_inline |
669 | |
822 | |
670 | #if ECB_GCC_VERSION(3,1) |
823 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
671 | #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) |
672 | #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) |
673 | #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) |
674 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
846 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
675 | #else |
847 | #else |
676 | #define ecb_attribute(attrlist) |
|
|
677 | #define ecb_is_constant(expr) 0 |
|
|
678 | #define ecb_expect(expr,value) (expr) |
|
|
679 | #define ecb_prefetch(addr,rw,locality) |
848 | #define ecb_prefetch(addr,rw,locality) |
680 | #endif |
849 | #endif |
681 | |
850 | |
682 | /* no emulation for ecb_decltype */ |
851 | /* no emulation for ecb_decltype */ |
683 | #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; }; |
684 | #define ecb_decltype(x) __decltype(x) |
855 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
685 | #elif ECB_GCC_VERSION(3,0) |
856 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
686 | #define ecb_decltype(x) __typeof(x) |
857 | #define ecb_decltype(x) __typeof__ (x) |
687 | #endif |
858 | #endif |
688 | |
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 |
689 | #define ecb_noinline ecb_attribute ((__noinline__)) |
877 | #define ecb_noinline ecb_attribute ((__noinline__)) |
690 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
878 | #endif |
|
|
879 | |
691 | #define ecb_unused ecb_attribute ((__unused__)) |
880 | #define ecb_unused ecb_attribute ((__unused__)) |
692 | #define ecb_const ecb_attribute ((__const__)) |
881 | #define ecb_const ecb_attribute ((__const__)) |
693 | #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 |
694 | |
895 | |
695 | #if ECB_GCC_VERSION(4,3) |
896 | #if ECB_GCC_VERSION(4,3) |
696 | #define ecb_artificial ecb_attribute ((__artificial__)) |
897 | #define ecb_artificial ecb_attribute ((__artificial__)) |
697 | #define ecb_hot ecb_attribute ((__hot__)) |
898 | #define ecb_hot ecb_attribute ((__hot__)) |
698 | #define ecb_cold ecb_attribute ((__cold__)) |
899 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
710 | /* for compatibility to the rest of the world */ |
911 | /* for compatibility to the rest of the world */ |
711 | #define ecb_likely(expr) ecb_expect_true (expr) |
912 | #define ecb_likely(expr) ecb_expect_true (expr) |
712 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
913 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
713 | |
914 | |
714 | /* count trailing zero bits and count # of one bits */ |
915 | /* count trailing zero bits and count # of one bits */ |
715 | #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)) |
716 | /* 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 */ |
717 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
921 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
718 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
922 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
719 | #define ecb_ctz32(x) __builtin_ctz (x) |
923 | #define ecb_ctz32(x) __builtin_ctz (x) |
720 | #define ecb_ctz64(x) __builtin_ctzll (x) |
924 | #define ecb_ctz64(x) __builtin_ctzll (x) |
721 | #define ecb_popcount32(x) __builtin_popcount (x) |
925 | #define ecb_popcount32(x) __builtin_popcount (x) |
722 | /* no popcountll */ |
926 | /* no popcountll */ |
723 | #else |
927 | #else |
724 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
928 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
725 | ecb_function_ int |
929 | ecb_function_ ecb_const int |
726 | ecb_ctz32 (uint32_t x) |
930 | ecb_ctz32 (uint32_t x) |
727 | { |
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 |
728 | int r = 0; |
937 | int r = 0; |
729 | |
938 | |
730 | x &= ~x + 1; /* this isolates the lowest bit */ |
939 | x &= ~x + 1; /* this isolates the lowest bit */ |
731 | |
940 | |
732 | #if ECB_branchless_on_i386 |
941 | #if ECB_branchless_on_i386 |
… | |
… | |
742 | if (x & 0xff00ff00) r += 8; |
951 | if (x & 0xff00ff00) r += 8; |
743 | if (x & 0xffff0000) r += 16; |
952 | if (x & 0xffff0000) r += 16; |
744 | #endif |
953 | #endif |
745 | |
954 | |
746 | return r; |
955 | return r; |
|
|
956 | #endif |
747 | } |
957 | } |
748 | |
958 | |
749 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
959 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
750 | ecb_function_ int |
960 | ecb_function_ ecb_const int |
751 | ecb_ctz64 (uint64_t x) |
961 | ecb_ctz64 (uint64_t x) |
752 | { |
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 |
753 | int shift = x & 0xffffffffU ? 0 : 32; |
968 | int shift = x & 0xffffffff ? 0 : 32; |
754 | return ecb_ctz32 (x >> shift) + shift; |
969 | return ecb_ctz32 (x >> shift) + shift; |
|
|
970 | #endif |
755 | } |
971 | } |
756 | |
972 | |
757 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
973 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
758 | ecb_function_ int |
974 | ecb_function_ ecb_const int |
759 | ecb_popcount32 (uint32_t x) |
975 | ecb_popcount32 (uint32_t x) |
760 | { |
976 | { |
761 | x -= (x >> 1) & 0x55555555; |
977 | x -= (x >> 1) & 0x55555555; |
762 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
978 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
763 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
979 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
764 | x *= 0x01010101; |
980 | x *= 0x01010101; |
765 | |
981 | |
766 | return x >> 24; |
982 | return x >> 24; |
767 | } |
983 | } |
768 | |
984 | |
769 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
985 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
770 | ecb_function_ int ecb_ld32 (uint32_t x) |
986 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
771 | { |
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 |
772 | int r = 0; |
993 | int r = 0; |
773 | |
994 | |
774 | if (x >> 16) { x >>= 16; r += 16; } |
995 | if (x >> 16) { x >>= 16; r += 16; } |
775 | if (x >> 8) { x >>= 8; r += 8; } |
996 | if (x >> 8) { x >>= 8; r += 8; } |
776 | if (x >> 4) { x >>= 4; r += 4; } |
997 | if (x >> 4) { x >>= 4; r += 4; } |
777 | if (x >> 2) { x >>= 2; r += 2; } |
998 | if (x >> 2) { x >>= 2; r += 2; } |
778 | if (x >> 1) { r += 1; } |
999 | if (x >> 1) { r += 1; } |
779 | |
1000 | |
780 | return r; |
1001 | return r; |
|
|
1002 | #endif |
781 | } |
1003 | } |
782 | |
1004 | |
783 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1005 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
784 | ecb_function_ int ecb_ld64 (uint64_t x) |
1006 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
785 | { |
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 |
786 | int r = 0; |
1013 | int r = 0; |
787 | |
1014 | |
788 | if (x >> 32) { x >>= 32; r += 32; } |
1015 | if (x >> 32) { x >>= 32; r += 32; } |
789 | |
1016 | |
790 | return r + ecb_ld32 (x); |
1017 | return r + ecb_ld32 (x); |
|
|
1018 | #endif |
791 | } |
1019 | } |
792 | #endif |
1020 | #endif |
793 | |
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 | |
794 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1027 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
795 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1028 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
796 | { |
1029 | { |
797 | return ( (x * 0x0802U & 0x22110U) |
1030 | return ( (x * 0x0802U & 0x22110U) |
798 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1031 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
799 | } |
1032 | } |
800 | |
1033 | |
801 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1034 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
802 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1035 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
803 | { |
1036 | { |
804 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1037 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
805 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1038 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
806 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1039 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
807 | x = ( x >> 8 ) | ( x << 8); |
1040 | x = ( x >> 8 ) | ( x << 8); |
808 | |
1041 | |
809 | return x; |
1042 | return x; |
810 | } |
1043 | } |
811 | |
1044 | |
812 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1045 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
813 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1046 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
814 | { |
1047 | { |
815 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1048 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
816 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1049 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
817 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1050 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
818 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1051 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
821 | return x; |
1054 | return x; |
822 | } |
1055 | } |
823 | |
1056 | |
824 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1057 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
825 | /* so for this version we are lazy */ |
1058 | /* so for this version we are lazy */ |
826 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1059 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
827 | ecb_function_ int |
1060 | ecb_function_ ecb_const int |
828 | ecb_popcount64 (uint64_t x) |
1061 | ecb_popcount64 (uint64_t x) |
829 | { |
1062 | { |
830 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1063 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
831 | } |
1064 | } |
832 | |
1065 | |
833 | 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); |
834 | 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); |
835 | 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); |
836 | 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); |
837 | 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); |
838 | 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); |
839 | 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); |
840 | 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); |
841 | |
1074 | |
842 | 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); } |
843 | 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); } |
844 | 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); } |
845 | 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); } |
846 | 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); } |
847 | 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); } |
848 | 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); } |
849 | 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); } |
850 | |
1083 | |
851 | #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 |
852 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1088 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1089 | #endif |
853 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1090 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
854 | #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))) |
855 | #else |
1097 | #else |
856 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1098 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
857 | ecb_function_ uint16_t |
1099 | ecb_function_ ecb_const uint16_t |
858 | ecb_bswap16 (uint16_t x) |
1100 | ecb_bswap16 (uint16_t x) |
859 | { |
1101 | { |
860 | return ecb_rotl16 (x, 8); |
1102 | return ecb_rotl16 (x, 8); |
861 | } |
1103 | } |
862 | |
1104 | |
863 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1105 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
864 | ecb_function_ uint32_t |
1106 | ecb_function_ ecb_const uint32_t |
865 | ecb_bswap32 (uint32_t x) |
1107 | ecb_bswap32 (uint32_t x) |
866 | { |
1108 | { |
867 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1109 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
868 | } |
1110 | } |
869 | |
1111 | |
870 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1112 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
871 | ecb_function_ uint64_t |
1113 | ecb_function_ ecb_const uint64_t |
872 | ecb_bswap64 (uint64_t x) |
1114 | ecb_bswap64 (uint64_t x) |
873 | { |
1115 | { |
874 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1116 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
875 | } |
1117 | } |
876 | #endif |
1118 | #endif |
877 | |
1119 | |
878 | #if ECB_GCC_VERSION(4,5) |
1120 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
879 | #define ecb_unreachable() __builtin_unreachable () |
1121 | #define ecb_unreachable() __builtin_unreachable () |
880 | #else |
1122 | #else |
881 | /* 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 :/ */ |
882 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1124 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
883 | ecb_inline void ecb_unreachable (void) { } |
1125 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
884 | #endif |
1126 | #endif |
885 | |
1127 | |
886 | /* try to tell the compiler that some condition is definitely true */ |
1128 | /* try to tell the compiler that some condition is definitely true */ |
887 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1129 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
888 | |
1130 | |
889 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1131 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
890 | ecb_inline unsigned char |
1132 | ecb_inline ecb_const uint32_t |
891 | ecb_byteorder_helper (void) |
1133 | ecb_byteorder_helper (void) |
892 | { |
1134 | { |
893 | const uint32_t u = 0x11223344; |
1135 | /* the union code still generates code under pressure in gcc, */ |
894 | 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 |
895 | } |
1157 | } |
896 | |
1158 | |
897 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1159 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
898 | 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; } |
899 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1161 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
900 | 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; } |
901 | |
1163 | |
902 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1164 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
903 | #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)) |
904 | #else |
1166 | #else |
905 | #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))) |
906 | #endif |
1168 | #endif |
907 | |
1169 | |
908 | #if __cplusplus |
1170 | #if ECB_CPP |
909 | template<typename T> |
1171 | template<typename T> |
910 | static inline T ecb_div_rd (T val, T div) |
1172 | static inline T ecb_div_rd (T val, T div) |
911 | { |
1173 | { |
912 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1174 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
913 | } |
1175 | } |
… | |
… | |
930 | } |
1192 | } |
931 | #else |
1193 | #else |
932 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1194 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
933 | #endif |
1195 | #endif |
934 | |
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 | |
935 | #endif |
1502 | #endif |
936 | |
1503 | |
937 | /* ECB.H END */ |
1504 | /* ECB.H END */ |
938 | |
1505 | |
939 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1506 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
960 | #define inline_size ecb_inline |
1527 | #define inline_size ecb_inline |
961 | |
1528 | |
962 | #if EV_FEATURE_CODE |
1529 | #if EV_FEATURE_CODE |
963 | # define inline_speed ecb_inline |
1530 | # define inline_speed ecb_inline |
964 | #else |
1531 | #else |
965 | # define inline_speed static noinline |
1532 | # define inline_speed noinline static |
966 | #endif |
1533 | #endif |
967 | |
1534 | |
968 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1535 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
969 | |
1536 | |
970 | #if EV_MINPRI == EV_MAXPRI |
1537 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
1017 | #else |
1584 | #else |
1018 | |
1585 | |
1019 | #include <float.h> |
1586 | #include <float.h> |
1020 | |
1587 | |
1021 | /* 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 |
1022 | static ev_tstamp noinline |
1590 | static ev_tstamp |
1023 | ev_floor (ev_tstamp v) |
1591 | ev_floor (ev_tstamp v) |
1024 | { |
1592 | { |
1025 | /* the choice of shift factor is not terribly important */ |
1593 | /* the choice of shift factor is not terribly important */ |
1026 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1594 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1027 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1595 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
… | |
… | |
1059 | |
1627 | |
1060 | #ifdef __linux |
1628 | #ifdef __linux |
1061 | # include <sys/utsname.h> |
1629 | # include <sys/utsname.h> |
1062 | #endif |
1630 | #endif |
1063 | |
1631 | |
1064 | static unsigned int noinline ecb_cold |
1632 | noinline ecb_cold |
|
|
1633 | static unsigned int |
1065 | ev_linux_version (void) |
1634 | ev_linux_version (void) |
1066 | { |
1635 | { |
1067 | #ifdef __linux |
1636 | #ifdef __linux |
1068 | unsigned int v = 0; |
1637 | unsigned int v = 0; |
1069 | struct utsname buf; |
1638 | struct utsname buf; |
… | |
… | |
1098 | } |
1667 | } |
1099 | |
1668 | |
1100 | /*****************************************************************************/ |
1669 | /*****************************************************************************/ |
1101 | |
1670 | |
1102 | #if EV_AVOID_STDIO |
1671 | #if EV_AVOID_STDIO |
1103 | static void noinline ecb_cold |
1672 | noinline ecb_cold |
|
|
1673 | static void |
1104 | ev_printerr (const char *msg) |
1674 | ev_printerr (const char *msg) |
1105 | { |
1675 | { |
1106 | write (STDERR_FILENO, msg, strlen (msg)); |
1676 | write (STDERR_FILENO, msg, strlen (msg)); |
1107 | } |
1677 | } |
1108 | #endif |
1678 | #endif |
1109 | |
1679 | |
1110 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1680 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1111 | |
1681 | |
1112 | void ecb_cold |
1682 | ecb_cold |
|
|
1683 | void |
1113 | ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW |
1684 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1114 | { |
1685 | { |
1115 | syserr_cb = cb; |
1686 | syserr_cb = cb; |
1116 | } |
1687 | } |
1117 | |
1688 | |
1118 | static void noinline ecb_cold |
1689 | noinline ecb_cold |
|
|
1690 | static void |
1119 | ev_syserr (const char *msg) |
1691 | ev_syserr (const char *msg) |
1120 | { |
1692 | { |
1121 | if (!msg) |
1693 | if (!msg) |
1122 | msg = "(libev) system error"; |
1694 | msg = "(libev) system error"; |
1123 | |
1695 | |
… | |
… | |
1136 | abort (); |
1708 | abort (); |
1137 | } |
1709 | } |
1138 | } |
1710 | } |
1139 | |
1711 | |
1140 | static void * |
1712 | static void * |
1141 | ev_realloc_emul (void *ptr, long size) |
1713 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1142 | { |
1714 | { |
1143 | #if __GLIBC__ |
|
|
1144 | return realloc (ptr, size); |
|
|
1145 | #else |
|
|
1146 | /* some systems, notably openbsd and darwin, fail to properly |
1715 | /* some systems, notably openbsd and darwin, fail to properly |
1147 | * 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 |
1148 | * 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. |
1149 | */ |
1720 | */ |
1150 | |
1721 | |
1151 | if (size) |
1722 | if (size) |
1152 | return realloc (ptr, size); |
1723 | return realloc (ptr, size); |
1153 | |
1724 | |
1154 | free (ptr); |
1725 | free (ptr); |
1155 | return 0; |
1726 | return 0; |
1156 | #endif |
|
|
1157 | } |
1727 | } |
1158 | |
1728 | |
1159 | 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; |
1160 | |
1730 | |
1161 | void ecb_cold |
1731 | ecb_cold |
|
|
1732 | void |
1162 | ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW |
1733 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1163 | { |
1734 | { |
1164 | alloc = cb; |
1735 | alloc = cb; |
1165 | } |
1736 | } |
1166 | |
1737 | |
1167 | inline_speed void * |
1738 | inline_speed void * |
… | |
… | |
1375 | } |
1946 | } |
1376 | |
1947 | |
1377 | return ncur; |
1948 | return ncur; |
1378 | } |
1949 | } |
1379 | |
1950 | |
1380 | static void * noinline ecb_cold |
1951 | noinline ecb_cold |
|
|
1952 | static void * |
1381 | array_realloc (int elem, void *base, int *cur, int cnt) |
1953 | array_realloc (int elem, void *base, int *cur, int cnt) |
1382 | { |
1954 | { |
1383 | *cur = array_nextsize (elem, *cur, cnt); |
1955 | *cur = array_nextsize (elem, *cur, cnt); |
1384 | return ev_realloc (base, elem * *cur); |
1956 | return ev_realloc (base, elem * *cur); |
1385 | } |
1957 | } |
… | |
… | |
1388 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1960 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1389 | |
1961 | |
1390 | #define array_needsize(type,base,cur,cnt,init) \ |
1962 | #define array_needsize(type,base,cur,cnt,init) \ |
1391 | if (expect_false ((cnt) > (cur))) \ |
1963 | if (expect_false ((cnt) > (cur))) \ |
1392 | { \ |
1964 | { \ |
1393 | int ecb_unused ocur_ = (cur); \ |
1965 | ecb_unused int ocur_ = (cur); \ |
1394 | (base) = (type *)array_realloc \ |
1966 | (base) = (type *)array_realloc \ |
1395 | (sizeof (type), (base), &(cur), (cnt)); \ |
1967 | (sizeof (type), (base), &(cur), (cnt)); \ |
1396 | init ((base) + (ocur_), (cur) - ocur_); \ |
1968 | init ((base) + (ocur_), (cur) - ocur_); \ |
1397 | } |
1969 | } |
1398 | |
1970 | |
… | |
… | |
1410 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1982 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1411 | |
1983 | |
1412 | /*****************************************************************************/ |
1984 | /*****************************************************************************/ |
1413 | |
1985 | |
1414 | /* dummy callback for pending events */ |
1986 | /* dummy callback for pending events */ |
1415 | static void noinline |
1987 | noinline |
|
|
1988 | static void |
1416 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1989 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1417 | { |
1990 | { |
1418 | } |
1991 | } |
1419 | |
1992 | |
1420 | void noinline |
1993 | noinline |
|
|
1994 | void |
1421 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1995 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1422 | { |
1996 | { |
1423 | W w_ = (W)w; |
1997 | W w_ = (W)w; |
1424 | int pri = ABSPRI (w_); |
1998 | int pri = ABSPRI (w_); |
1425 | |
1999 | |
… | |
… | |
1555 | |
2129 | |
1556 | fdchangecnt = 0; |
2130 | fdchangecnt = 0; |
1557 | } |
2131 | } |
1558 | |
2132 | |
1559 | /* something about the given fd changed */ |
2133 | /* something about the given fd changed */ |
1560 | inline_size void |
2134 | inline_size |
|
|
2135 | void |
1561 | fd_change (EV_P_ int fd, int flags) |
2136 | fd_change (EV_P_ int fd, int flags) |
1562 | { |
2137 | { |
1563 | unsigned char reify = anfds [fd].reify; |
2138 | unsigned char reify = anfds [fd].reify; |
1564 | anfds [fd].reify |= flags; |
2139 | anfds [fd].reify |= flags; |
1565 | |
2140 | |
… | |
… | |
1570 | fdchanges [fdchangecnt - 1] = fd; |
2145 | fdchanges [fdchangecnt - 1] = fd; |
1571 | } |
2146 | } |
1572 | } |
2147 | } |
1573 | |
2148 | |
1574 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2149 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1575 | inline_speed void ecb_cold |
2150 | inline_speed ecb_cold void |
1576 | fd_kill (EV_P_ int fd) |
2151 | fd_kill (EV_P_ int fd) |
1577 | { |
2152 | { |
1578 | ev_io *w; |
2153 | ev_io *w; |
1579 | |
2154 | |
1580 | while ((w = (ev_io *)anfds [fd].head)) |
2155 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1583 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2158 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1584 | } |
2159 | } |
1585 | } |
2160 | } |
1586 | |
2161 | |
1587 | /* check whether the given fd is actually valid, for error recovery */ |
2162 | /* check whether the given fd is actually valid, for error recovery */ |
1588 | inline_size int ecb_cold |
2163 | inline_size ecb_cold int |
1589 | fd_valid (int fd) |
2164 | fd_valid (int fd) |
1590 | { |
2165 | { |
1591 | #ifdef _WIN32 |
2166 | #ifdef _WIN32 |
1592 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2167 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1593 | #else |
2168 | #else |
1594 | return fcntl (fd, F_GETFD) != -1; |
2169 | return fcntl (fd, F_GETFD) != -1; |
1595 | #endif |
2170 | #endif |
1596 | } |
2171 | } |
1597 | |
2172 | |
1598 | /* called on EBADF to verify fds */ |
2173 | /* called on EBADF to verify fds */ |
1599 | static void noinline ecb_cold |
2174 | noinline ecb_cold |
|
|
2175 | static void |
1600 | fd_ebadf (EV_P) |
2176 | fd_ebadf (EV_P) |
1601 | { |
2177 | { |
1602 | int fd; |
2178 | int fd; |
1603 | |
2179 | |
1604 | for (fd = 0; fd < anfdmax; ++fd) |
2180 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1606 | if (!fd_valid (fd) && errno == EBADF) |
2182 | if (!fd_valid (fd) && errno == EBADF) |
1607 | fd_kill (EV_A_ fd); |
2183 | fd_kill (EV_A_ fd); |
1608 | } |
2184 | } |
1609 | |
2185 | |
1610 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2186 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1611 | static void noinline ecb_cold |
2187 | noinline ecb_cold |
|
|
2188 | static void |
1612 | fd_enomem (EV_P) |
2189 | fd_enomem (EV_P) |
1613 | { |
2190 | { |
1614 | int fd; |
2191 | int fd; |
1615 | |
2192 | |
1616 | for (fd = anfdmax; fd--; ) |
2193 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1620 | break; |
2197 | break; |
1621 | } |
2198 | } |
1622 | } |
2199 | } |
1623 | |
2200 | |
1624 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2201 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1625 | static void noinline |
2202 | noinline |
|
|
2203 | static void |
1626 | fd_rearm_all (EV_P) |
2204 | fd_rearm_all (EV_P) |
1627 | { |
2205 | { |
1628 | int fd; |
2206 | int fd; |
1629 | |
2207 | |
1630 | for (fd = 0; fd < anfdmax; ++fd) |
2208 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1811 | |
2389 | |
1812 | /*****************************************************************************/ |
2390 | /*****************************************************************************/ |
1813 | |
2391 | |
1814 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2392 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1815 | |
2393 | |
1816 | static void noinline ecb_cold |
2394 | noinline ecb_cold |
|
|
2395 | static void |
1817 | evpipe_init (EV_P) |
2396 | evpipe_init (EV_P) |
1818 | { |
2397 | { |
1819 | if (!ev_is_active (&pipe_w)) |
2398 | if (!ev_is_active (&pipe_w)) |
1820 | { |
2399 | { |
|
|
2400 | int fds [2]; |
|
|
2401 | |
1821 | # if EV_USE_EVENTFD |
2402 | # if EV_USE_EVENTFD |
|
|
2403 | fds [0] = -1; |
1822 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2404 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1823 | if (evfd < 0 && errno == EINVAL) |
2405 | if (fds [1] < 0 && errno == EINVAL) |
1824 | evfd = eventfd (0, 0); |
2406 | fds [1] = eventfd (0, 0); |
1825 | |
2407 | |
1826 | if (evfd >= 0) |
2408 | if (fds [1] < 0) |
1827 | { |
|
|
1828 | evpipe [0] = -1; |
|
|
1829 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1830 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1831 | } |
|
|
1832 | else |
|
|
1833 | # endif |
2409 | # endif |
1834 | { |
2410 | { |
1835 | while (pipe (evpipe)) |
2411 | while (pipe (fds)) |
1836 | ev_syserr ("(libev) error creating signal/async pipe"); |
2412 | ev_syserr ("(libev) error creating signal/async pipe"); |
1837 | |
2413 | |
1838 | fd_intern (evpipe [0]); |
2414 | fd_intern (fds [0]); |
1839 | fd_intern (evpipe [1]); |
|
|
1840 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1841 | } |
2415 | } |
1842 | |
2416 | |
|
|
2417 | evpipe [0] = fds [0]; |
|
|
2418 | |
|
|
2419 | if (evpipe [1] < 0) |
|
|
2420 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2421 | else |
|
|
2422 | { |
|
|
2423 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2424 | /* so that evpipe_write can always rely on its value. */ |
|
|
2425 | /* this branch does not do anything sensible on windows, */ |
|
|
2426 | /* so must not be executed on windows */ |
|
|
2427 | |
|
|
2428 | dup2 (fds [1], evpipe [1]); |
|
|
2429 | close (fds [1]); |
|
|
2430 | } |
|
|
2431 | |
|
|
2432 | fd_intern (evpipe [1]); |
|
|
2433 | |
|
|
2434 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1843 | ev_io_start (EV_A_ &pipe_w); |
2435 | ev_io_start (EV_A_ &pipe_w); |
1844 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2436 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1845 | } |
2437 | } |
1846 | } |
2438 | } |
1847 | |
2439 | |
… | |
… | |
1852 | |
2444 | |
1853 | if (expect_true (*flag)) |
2445 | if (expect_true (*flag)) |
1854 | return; |
2446 | return; |
1855 | |
2447 | |
1856 | *flag = 1; |
2448 | *flag = 1; |
1857 | |
|
|
1858 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2449 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
1859 | |
2450 | |
1860 | pipe_write_skipped = 1; |
2451 | pipe_write_skipped = 1; |
1861 | |
2452 | |
1862 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
2453 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
1863 | |
2454 | |
1864 | if (pipe_write_wanted) |
2455 | if (pipe_write_wanted) |
1865 | { |
2456 | { |
1866 | int old_errno; |
2457 | int old_errno; |
1867 | |
2458 | |
1868 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
2459 | pipe_write_skipped = 0; |
|
|
2460 | ECB_MEMORY_FENCE_RELEASE; |
1869 | |
2461 | |
1870 | old_errno = errno; /* save errno because write will clobber it */ |
2462 | old_errno = errno; /* save errno because write will clobber it */ |
1871 | |
2463 | |
1872 | #if EV_USE_EVENTFD |
2464 | #if EV_USE_EVENTFD |
1873 | if (evfd >= 0) |
2465 | if (evpipe [0] < 0) |
1874 | { |
2466 | { |
1875 | uint64_t counter = 1; |
2467 | uint64_t counter = 1; |
1876 | write (evfd, &counter, sizeof (uint64_t)); |
2468 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1877 | } |
2469 | } |
1878 | else |
2470 | else |
1879 | #endif |
2471 | #endif |
1880 | { |
2472 | { |
1881 | #ifdef _WIN32 |
2473 | #ifdef _WIN32 |
… | |
… | |
1901 | int i; |
2493 | int i; |
1902 | |
2494 | |
1903 | if (revents & EV_READ) |
2495 | if (revents & EV_READ) |
1904 | { |
2496 | { |
1905 | #if EV_USE_EVENTFD |
2497 | #if EV_USE_EVENTFD |
1906 | if (evfd >= 0) |
2498 | if (evpipe [0] < 0) |
1907 | { |
2499 | { |
1908 | uint64_t counter; |
2500 | uint64_t counter; |
1909 | read (evfd, &counter, sizeof (uint64_t)); |
2501 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1910 | } |
2502 | } |
1911 | else |
2503 | else |
1912 | #endif |
2504 | #endif |
1913 | { |
2505 | { |
1914 | char dummy[4]; |
2506 | char dummy[4]; |
1915 | #ifdef _WIN32 |
2507 | #ifdef _WIN32 |
1916 | WSABUF buf; |
2508 | WSABUF buf; |
1917 | DWORD recvd; |
2509 | DWORD recvd; |
|
|
2510 | DWORD flags = 0; |
1918 | buf.buf = dummy; |
2511 | buf.buf = dummy; |
1919 | buf.len = sizeof (dummy); |
2512 | buf.len = sizeof (dummy); |
1920 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0); |
2513 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
1921 | #else |
2514 | #else |
1922 | read (evpipe [0], &dummy, sizeof (dummy)); |
2515 | read (evpipe [0], &dummy, sizeof (dummy)); |
1923 | #endif |
2516 | #endif |
1924 | } |
2517 | } |
1925 | } |
2518 | } |
… | |
… | |
1931 | #if EV_SIGNAL_ENABLE |
2524 | #if EV_SIGNAL_ENABLE |
1932 | if (sig_pending) |
2525 | if (sig_pending) |
1933 | { |
2526 | { |
1934 | sig_pending = 0; |
2527 | sig_pending = 0; |
1935 | |
2528 | |
1936 | ECB_MEMORY_FENCE_RELEASE; |
2529 | ECB_MEMORY_FENCE; |
1937 | |
2530 | |
1938 | for (i = EV_NSIG - 1; i--; ) |
2531 | for (i = EV_NSIG - 1; i--; ) |
1939 | if (expect_false (signals [i].pending)) |
2532 | if (expect_false (signals [i].pending)) |
1940 | ev_feed_signal_event (EV_A_ i + 1); |
2533 | ev_feed_signal_event (EV_A_ i + 1); |
1941 | } |
2534 | } |
… | |
… | |
1944 | #if EV_ASYNC_ENABLE |
2537 | #if EV_ASYNC_ENABLE |
1945 | if (async_pending) |
2538 | if (async_pending) |
1946 | { |
2539 | { |
1947 | async_pending = 0; |
2540 | async_pending = 0; |
1948 | |
2541 | |
1949 | ECB_MEMORY_FENCE_RELEASE; |
2542 | ECB_MEMORY_FENCE; |
1950 | |
2543 | |
1951 | for (i = asynccnt; i--; ) |
2544 | for (i = asynccnt; i--; ) |
1952 | if (asyncs [i]->sent) |
2545 | if (asyncs [i]->sent) |
1953 | { |
2546 | { |
1954 | asyncs [i]->sent = 0; |
2547 | asyncs [i]->sent = 0; |
|
|
2548 | ECB_MEMORY_FENCE_RELEASE; |
1955 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2549 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1956 | } |
2550 | } |
1957 | } |
2551 | } |
1958 | #endif |
2552 | #endif |
1959 | } |
2553 | } |
… | |
… | |
1962 | |
2556 | |
1963 | void |
2557 | void |
1964 | ev_feed_signal (int signum) EV_THROW |
2558 | ev_feed_signal (int signum) EV_THROW |
1965 | { |
2559 | { |
1966 | #if EV_MULTIPLICITY |
2560 | #if EV_MULTIPLICITY |
|
|
2561 | EV_P; |
|
|
2562 | ECB_MEMORY_FENCE_ACQUIRE; |
1967 | EV_P = signals [signum - 1].loop; |
2563 | EV_A = signals [signum - 1].loop; |
1968 | |
2564 | |
1969 | if (!EV_A) |
2565 | if (!EV_A) |
1970 | return; |
2566 | return; |
1971 | #endif |
2567 | #endif |
1972 | |
2568 | |
1973 | if (!ev_active (&pipe_w)) |
|
|
1974 | return; |
|
|
1975 | |
|
|
1976 | signals [signum - 1].pending = 1; |
2569 | signals [signum - 1].pending = 1; |
1977 | evpipe_write (EV_A_ &sig_pending); |
2570 | evpipe_write (EV_A_ &sig_pending); |
1978 | } |
2571 | } |
1979 | |
2572 | |
1980 | static void |
2573 | static void |
… | |
… | |
1985 | #endif |
2578 | #endif |
1986 | |
2579 | |
1987 | ev_feed_signal (signum); |
2580 | ev_feed_signal (signum); |
1988 | } |
2581 | } |
1989 | |
2582 | |
1990 | void noinline |
2583 | noinline |
|
|
2584 | void |
1991 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2585 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1992 | { |
2586 | { |
1993 | WL w; |
2587 | WL w; |
1994 | |
2588 | |
1995 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2589 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1996 | return; |
2590 | return; |
1997 | |
2591 | |
1998 | --signum; |
2592 | --signum; |
1999 | |
2593 | |
2000 | #if EV_MULTIPLICITY |
2594 | #if EV_MULTIPLICITY |
… | |
… | |
2004 | if (expect_false (signals [signum].loop != EV_A)) |
2598 | if (expect_false (signals [signum].loop != EV_A)) |
2005 | return; |
2599 | return; |
2006 | #endif |
2600 | #endif |
2007 | |
2601 | |
2008 | signals [signum].pending = 0; |
2602 | signals [signum].pending = 0; |
|
|
2603 | ECB_MEMORY_FENCE_RELEASE; |
2009 | |
2604 | |
2010 | for (w = signals [signum].head; w; w = w->next) |
2605 | for (w = signals [signum].head; w; w = w->next) |
2011 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2606 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2012 | } |
2607 | } |
2013 | |
2608 | |
… | |
… | |
2111 | #endif |
2706 | #endif |
2112 | #if EV_USE_SELECT |
2707 | #if EV_USE_SELECT |
2113 | # include "ev_select.c" |
2708 | # include "ev_select.c" |
2114 | #endif |
2709 | #endif |
2115 | |
2710 | |
2116 | int ecb_cold |
2711 | ecb_cold int |
2117 | ev_version_major (void) EV_THROW |
2712 | ev_version_major (void) EV_THROW |
2118 | { |
2713 | { |
2119 | return EV_VERSION_MAJOR; |
2714 | return EV_VERSION_MAJOR; |
2120 | } |
2715 | } |
2121 | |
2716 | |
2122 | int ecb_cold |
2717 | ecb_cold int |
2123 | ev_version_minor (void) EV_THROW |
2718 | ev_version_minor (void) EV_THROW |
2124 | { |
2719 | { |
2125 | return EV_VERSION_MINOR; |
2720 | return EV_VERSION_MINOR; |
2126 | } |
2721 | } |
2127 | |
2722 | |
2128 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2723 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2129 | int inline_size ecb_cold |
2724 | inline_size ecb_cold int |
2130 | enable_secure (void) |
2725 | enable_secure (void) |
2131 | { |
2726 | { |
2132 | #ifdef _WIN32 |
2727 | #ifdef _WIN32 |
2133 | return 0; |
2728 | return 0; |
2134 | #else |
2729 | #else |
2135 | return getuid () != geteuid () |
2730 | return getuid () != geteuid () |
2136 | || getgid () != getegid (); |
2731 | || getgid () != getegid (); |
2137 | #endif |
2732 | #endif |
2138 | } |
2733 | } |
2139 | |
2734 | |
2140 | unsigned int ecb_cold |
2735 | ecb_cold |
|
|
2736 | unsigned int |
2141 | ev_supported_backends (void) EV_THROW |
2737 | ev_supported_backends (void) EV_THROW |
2142 | { |
2738 | { |
2143 | unsigned int flags = 0; |
2739 | unsigned int flags = 0; |
2144 | |
2740 | |
2145 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2741 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
2149 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2745 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2150 | |
2746 | |
2151 | return flags; |
2747 | return flags; |
2152 | } |
2748 | } |
2153 | |
2749 | |
2154 | unsigned int ecb_cold |
2750 | ecb_cold |
|
|
2751 | unsigned int |
2155 | ev_recommended_backends (void) EV_THROW |
2752 | ev_recommended_backends (void) EV_THROW |
2156 | { |
2753 | { |
2157 | unsigned int flags = ev_supported_backends (); |
2754 | unsigned int flags = ev_supported_backends (); |
2158 | |
2755 | |
2159 | #ifndef __NetBSD__ |
2756 | #ifndef __NetBSD__ |
… | |
… | |
2171 | #endif |
2768 | #endif |
2172 | |
2769 | |
2173 | return flags; |
2770 | return flags; |
2174 | } |
2771 | } |
2175 | |
2772 | |
2176 | unsigned int ecb_cold |
2773 | ecb_cold |
|
|
2774 | unsigned int |
2177 | ev_embeddable_backends (void) EV_THROW |
2775 | ev_embeddable_backends (void) EV_THROW |
2178 | { |
2776 | { |
2179 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2777 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2180 | |
2778 | |
2181 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2779 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
… | |
… | |
2227 | { |
2825 | { |
2228 | return userdata; |
2826 | return userdata; |
2229 | } |
2827 | } |
2230 | |
2828 | |
2231 | void |
2829 | void |
2232 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2830 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2233 | { |
2831 | { |
2234 | invoke_cb = invoke_pending_cb; |
2832 | invoke_cb = invoke_pending_cb; |
2235 | } |
2833 | } |
2236 | |
2834 | |
2237 | void |
2835 | void |
… | |
… | |
2241 | acquire_cb = acquire; |
2839 | acquire_cb = acquire; |
2242 | } |
2840 | } |
2243 | #endif |
2841 | #endif |
2244 | |
2842 | |
2245 | /* initialise a loop structure, must be zero-initialised */ |
2843 | /* initialise a loop structure, must be zero-initialised */ |
2246 | static void noinline ecb_cold |
2844 | noinline ecb_cold |
|
|
2845 | static void |
2247 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2846 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2248 | { |
2847 | { |
2249 | if (!backend) |
2848 | if (!backend) |
2250 | { |
2849 | { |
2251 | origflags = flags; |
2850 | origflags = flags; |
… | |
… | |
2297 | #if EV_ASYNC_ENABLE |
2896 | #if EV_ASYNC_ENABLE |
2298 | async_pending = 0; |
2897 | async_pending = 0; |
2299 | #endif |
2898 | #endif |
2300 | pipe_write_skipped = 0; |
2899 | pipe_write_skipped = 0; |
2301 | pipe_write_wanted = 0; |
2900 | pipe_write_wanted = 0; |
|
|
2901 | evpipe [0] = -1; |
|
|
2902 | evpipe [1] = -1; |
2302 | #if EV_USE_INOTIFY |
2903 | #if EV_USE_INOTIFY |
2303 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2904 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2304 | #endif |
2905 | #endif |
2305 | #if EV_USE_SIGNALFD |
2906 | #if EV_USE_SIGNALFD |
2306 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2907 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2336 | #endif |
2937 | #endif |
2337 | } |
2938 | } |
2338 | } |
2939 | } |
2339 | |
2940 | |
2340 | /* free up a loop structure */ |
2941 | /* free up a loop structure */ |
2341 | void ecb_cold |
2942 | ecb_cold |
|
|
2943 | void |
2342 | ev_loop_destroy (EV_P) |
2944 | ev_loop_destroy (EV_P) |
2343 | { |
2945 | { |
2344 | int i; |
2946 | int i; |
2345 | |
2947 | |
2346 | #if EV_MULTIPLICITY |
2948 | #if EV_MULTIPLICITY |
… | |
… | |
2357 | EV_INVOKE_PENDING; |
2959 | EV_INVOKE_PENDING; |
2358 | } |
2960 | } |
2359 | #endif |
2961 | #endif |
2360 | |
2962 | |
2361 | #if EV_CHILD_ENABLE |
2963 | #if EV_CHILD_ENABLE |
2362 | if (ev_is_active (&childev)) |
2964 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2363 | { |
2965 | { |
2364 | ev_ref (EV_A); /* child watcher */ |
2966 | ev_ref (EV_A); /* child watcher */ |
2365 | ev_signal_stop (EV_A_ &childev); |
2967 | ev_signal_stop (EV_A_ &childev); |
2366 | } |
2968 | } |
2367 | #endif |
2969 | #endif |
… | |
… | |
2369 | if (ev_is_active (&pipe_w)) |
2971 | if (ev_is_active (&pipe_w)) |
2370 | { |
2972 | { |
2371 | /*ev_ref (EV_A);*/ |
2973 | /*ev_ref (EV_A);*/ |
2372 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2974 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2373 | |
2975 | |
2374 | #if EV_USE_EVENTFD |
|
|
2375 | if (evfd >= 0) |
|
|
2376 | close (evfd); |
|
|
2377 | #endif |
|
|
2378 | |
|
|
2379 | if (evpipe [0] >= 0) |
|
|
2380 | { |
|
|
2381 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2976 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2382 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2977 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2383 | } |
|
|
2384 | } |
2978 | } |
2385 | |
2979 | |
2386 | #if EV_USE_SIGNALFD |
2980 | #if EV_USE_SIGNALFD |
2387 | if (ev_is_active (&sigfd_w)) |
2981 | if (ev_is_active (&sigfd_w)) |
2388 | close (sigfd); |
2982 | close (sigfd); |
… | |
… | |
2474 | #endif |
3068 | #endif |
2475 | #if EV_USE_INOTIFY |
3069 | #if EV_USE_INOTIFY |
2476 | infy_fork (EV_A); |
3070 | infy_fork (EV_A); |
2477 | #endif |
3071 | #endif |
2478 | |
3072 | |
|
|
3073 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2479 | if (ev_is_active (&pipe_w)) |
3074 | if (ev_is_active (&pipe_w) && postfork != 2) |
2480 | { |
3075 | { |
2481 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3076 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2482 | |
3077 | |
2483 | ev_ref (EV_A); |
3078 | ev_ref (EV_A); |
2484 | ev_io_stop (EV_A_ &pipe_w); |
3079 | ev_io_stop (EV_A_ &pipe_w); |
2485 | |
3080 | |
2486 | #if EV_USE_EVENTFD |
|
|
2487 | if (evfd >= 0) |
|
|
2488 | close (evfd); |
|
|
2489 | #endif |
|
|
2490 | |
|
|
2491 | if (evpipe [0] >= 0) |
3081 | if (evpipe [0] >= 0) |
2492 | { |
|
|
2493 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3082 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2494 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2495 | } |
|
|
2496 | |
3083 | |
2497 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2498 | evpipe_init (EV_A); |
3084 | evpipe_init (EV_A); |
2499 | /* now iterate over everything, in case we missed something */ |
3085 | /* iterate over everything, in case we missed something before */ |
2500 | pipecb (EV_A_ &pipe_w, EV_READ); |
3086 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2501 | #endif |
|
|
2502 | } |
3087 | } |
|
|
3088 | #endif |
2503 | |
3089 | |
2504 | postfork = 0; |
3090 | postfork = 0; |
2505 | } |
3091 | } |
2506 | |
3092 | |
2507 | #if EV_MULTIPLICITY |
3093 | #if EV_MULTIPLICITY |
2508 | |
3094 | |
|
|
3095 | ecb_cold |
2509 | struct ev_loop * ecb_cold |
3096 | struct ev_loop * |
2510 | ev_loop_new (unsigned int flags) EV_THROW |
3097 | ev_loop_new (unsigned int flags) EV_THROW |
2511 | { |
3098 | { |
2512 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3099 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2513 | |
3100 | |
2514 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3101 | memset (EV_A, 0, sizeof (struct ev_loop)); |
… | |
… | |
2522 | } |
3109 | } |
2523 | |
3110 | |
2524 | #endif /* multiplicity */ |
3111 | #endif /* multiplicity */ |
2525 | |
3112 | |
2526 | #if EV_VERIFY |
3113 | #if EV_VERIFY |
2527 | static void noinline ecb_cold |
3114 | noinline ecb_cold |
|
|
3115 | static void |
2528 | verify_watcher (EV_P_ W w) |
3116 | verify_watcher (EV_P_ W w) |
2529 | { |
3117 | { |
2530 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3118 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2531 | |
3119 | |
2532 | if (w->pending) |
3120 | if (w->pending) |
2533 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3121 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2534 | } |
3122 | } |
2535 | |
3123 | |
2536 | static void noinline ecb_cold |
3124 | noinline ecb_cold |
|
|
3125 | static void |
2537 | verify_heap (EV_P_ ANHE *heap, int N) |
3126 | verify_heap (EV_P_ ANHE *heap, int N) |
2538 | { |
3127 | { |
2539 | int i; |
3128 | int i; |
2540 | |
3129 | |
2541 | for (i = HEAP0; i < N + HEAP0; ++i) |
3130 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2546 | |
3135 | |
2547 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3136 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2548 | } |
3137 | } |
2549 | } |
3138 | } |
2550 | |
3139 | |
2551 | static void noinline ecb_cold |
3140 | noinline ecb_cold |
|
|
3141 | static void |
2552 | array_verify (EV_P_ W *ws, int cnt) |
3142 | array_verify (EV_P_ W *ws, int cnt) |
2553 | { |
3143 | { |
2554 | while (cnt--) |
3144 | while (cnt--) |
2555 | { |
3145 | { |
2556 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3146 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2562 | #if EV_FEATURE_API |
3152 | #if EV_FEATURE_API |
2563 | void ecb_cold |
3153 | void ecb_cold |
2564 | ev_verify (EV_P) EV_THROW |
3154 | ev_verify (EV_P) EV_THROW |
2565 | { |
3155 | { |
2566 | #if EV_VERIFY |
3156 | #if EV_VERIFY |
2567 | int i, j; |
3157 | int i; |
2568 | WL w, w2; |
3158 | WL w, w2; |
2569 | |
3159 | |
2570 | assert (activecnt >= -1); |
3160 | assert (activecnt >= -1); |
2571 | |
3161 | |
2572 | assert (fdchangemax >= fdchangecnt); |
3162 | assert (fdchangemax >= fdchangecnt); |
2573 | for (i = 0; i < fdchangecnt; ++i) |
3163 | for (i = 0; i < fdchangecnt; ++i) |
2574 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3164 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2575 | |
3165 | |
2576 | assert (anfdmax >= 0); |
3166 | assert (anfdmax >= 0); |
2577 | for (i = j = 0; i < anfdmax; ++i) |
3167 | for (i = 0; i < anfdmax; ++i) |
|
|
3168 | { |
|
|
3169 | int j = 0; |
|
|
3170 | |
2578 | for (w = w2 = anfds [i].head; w; w = w->next) |
3171 | for (w = w2 = anfds [i].head; w; w = w->next) |
2579 | { |
3172 | { |
2580 | verify_watcher (EV_A_ (W)w); |
3173 | verify_watcher (EV_A_ (W)w); |
2581 | |
3174 | |
2582 | if (++j & 1) |
3175 | if (j++ & 1) |
2583 | w2 = w2->next; |
3176 | { |
2584 | |
|
|
2585 | assert (("libev: io watcher list contains a loop", w != w2)); |
3177 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3178 | w2 = w2->next; |
|
|
3179 | } |
|
|
3180 | |
2586 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3181 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2587 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3182 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2588 | } |
3183 | } |
|
|
3184 | } |
2589 | |
3185 | |
2590 | assert (timermax >= timercnt); |
3186 | assert (timermax >= timercnt); |
2591 | verify_heap (EV_A_ timers, timercnt); |
3187 | verify_heap (EV_A_ timers, timercnt); |
2592 | |
3188 | |
2593 | #if EV_PERIODIC_ENABLE |
3189 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2639 | #endif |
3235 | #endif |
2640 | } |
3236 | } |
2641 | #endif |
3237 | #endif |
2642 | |
3238 | |
2643 | #if EV_MULTIPLICITY |
3239 | #if EV_MULTIPLICITY |
|
|
3240 | ecb_cold |
2644 | struct ev_loop * ecb_cold |
3241 | struct ev_loop * |
2645 | #else |
3242 | #else |
2646 | int |
3243 | int |
2647 | #endif |
3244 | #endif |
2648 | ev_default_loop (unsigned int flags) EV_THROW |
3245 | ev_default_loop (unsigned int flags) EV_THROW |
2649 | { |
3246 | { |
… | |
… | |
2674 | } |
3271 | } |
2675 | |
3272 | |
2676 | void |
3273 | void |
2677 | ev_loop_fork (EV_P) EV_THROW |
3274 | ev_loop_fork (EV_P) EV_THROW |
2678 | { |
3275 | { |
2679 | postfork = 1; /* must be in line with ev_default_fork */ |
3276 | postfork = 1; |
2680 | } |
3277 | } |
2681 | |
3278 | |
2682 | /*****************************************************************************/ |
3279 | /*****************************************************************************/ |
2683 | |
3280 | |
2684 | void |
3281 | void |
… | |
… | |
2697 | count += pendingcnt [pri]; |
3294 | count += pendingcnt [pri]; |
2698 | |
3295 | |
2699 | return count; |
3296 | return count; |
2700 | } |
3297 | } |
2701 | |
3298 | |
2702 | void noinline |
3299 | noinline |
|
|
3300 | void |
2703 | ev_invoke_pending (EV_P) |
3301 | ev_invoke_pending (EV_P) |
2704 | { |
3302 | { |
2705 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
3303 | pendingpri = NUMPRI; |
|
|
3304 | |
|
|
3305 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3306 | { |
|
|
3307 | --pendingpri; |
|
|
3308 | |
2706 | while (pendingcnt [pendingpri]) |
3309 | while (pendingcnt [pendingpri]) |
2707 | { |
3310 | { |
2708 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3311 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2709 | |
3312 | |
2710 | p->w->pending = 0; |
3313 | p->w->pending = 0; |
2711 | EV_CB_INVOKE (p->w, p->events); |
3314 | EV_CB_INVOKE (p->w, p->events); |
2712 | EV_FREQUENT_CHECK; |
3315 | EV_FREQUENT_CHECK; |
2713 | } |
3316 | } |
|
|
3317 | } |
2714 | } |
3318 | } |
2715 | |
3319 | |
2716 | #if EV_IDLE_ENABLE |
3320 | #if EV_IDLE_ENABLE |
2717 | /* make idle watchers pending. this handles the "call-idle */ |
3321 | /* make idle watchers pending. this handles the "call-idle */ |
2718 | /* only when higher priorities are idle" logic */ |
3322 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2776 | } |
3380 | } |
2777 | } |
3381 | } |
2778 | |
3382 | |
2779 | #if EV_PERIODIC_ENABLE |
3383 | #if EV_PERIODIC_ENABLE |
2780 | |
3384 | |
2781 | static void noinline |
3385 | noinline |
|
|
3386 | static void |
2782 | periodic_recalc (EV_P_ ev_periodic *w) |
3387 | periodic_recalc (EV_P_ ev_periodic *w) |
2783 | { |
3388 | { |
2784 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3389 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2785 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3390 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2786 | |
3391 | |
… | |
… | |
2808 | { |
3413 | { |
2809 | EV_FREQUENT_CHECK; |
3414 | EV_FREQUENT_CHECK; |
2810 | |
3415 | |
2811 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3416 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2812 | { |
3417 | { |
2813 | int feed_count = 0; |
|
|
2814 | |
|
|
2815 | do |
3418 | do |
2816 | { |
3419 | { |
2817 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3420 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2818 | |
3421 | |
2819 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3422 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2846 | } |
3449 | } |
2847 | } |
3450 | } |
2848 | |
3451 | |
2849 | /* simply recalculate all periodics */ |
3452 | /* simply recalculate all periodics */ |
2850 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3453 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2851 | static void noinline ecb_cold |
3454 | noinline ecb_cold |
|
|
3455 | static void |
2852 | periodics_reschedule (EV_P) |
3456 | periodics_reschedule (EV_P) |
2853 | { |
3457 | { |
2854 | int i; |
3458 | int i; |
2855 | |
3459 | |
2856 | /* adjust periodics after time jump */ |
3460 | /* adjust periodics after time jump */ |
… | |
… | |
2869 | reheap (periodics, periodiccnt); |
3473 | reheap (periodics, periodiccnt); |
2870 | } |
3474 | } |
2871 | #endif |
3475 | #endif |
2872 | |
3476 | |
2873 | /* adjust all timers by a given offset */ |
3477 | /* adjust all timers by a given offset */ |
2874 | static void noinline ecb_cold |
3478 | noinline ecb_cold |
|
|
3479 | static void |
2875 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3480 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2876 | { |
3481 | { |
2877 | int i; |
3482 | int i; |
2878 | |
3483 | |
2879 | for (i = 0; i < timercnt; ++i) |
3484 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3078 | backend_poll (EV_A_ waittime); |
3683 | backend_poll (EV_A_ waittime); |
3079 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3684 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3080 | |
3685 | |
3081 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3686 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3082 | |
3687 | |
|
|
3688 | ECB_MEMORY_FENCE_ACQUIRE; |
3083 | if (pipe_write_skipped) |
3689 | if (pipe_write_skipped) |
3084 | { |
3690 | { |
3085 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3691 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3086 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3692 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3087 | } |
3693 | } |
… | |
… | |
3246 | w->active = 0; |
3852 | w->active = 0; |
3247 | } |
3853 | } |
3248 | |
3854 | |
3249 | /*****************************************************************************/ |
3855 | /*****************************************************************************/ |
3250 | |
3856 | |
3251 | void noinline |
3857 | noinline |
|
|
3858 | void |
3252 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3859 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3253 | { |
3860 | { |
3254 | int fd = w->fd; |
3861 | int fd = w->fd; |
3255 | |
3862 | |
3256 | if (expect_false (ev_is_active (w))) |
3863 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3272 | w->events &= ~EV__IOFDSET; |
3879 | w->events &= ~EV__IOFDSET; |
3273 | |
3880 | |
3274 | EV_FREQUENT_CHECK; |
3881 | EV_FREQUENT_CHECK; |
3275 | } |
3882 | } |
3276 | |
3883 | |
3277 | void noinline |
3884 | noinline |
|
|
3885 | void |
3278 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3886 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3279 | { |
3887 | { |
3280 | clear_pending (EV_A_ (W)w); |
3888 | clear_pending (EV_A_ (W)w); |
3281 | if (expect_false (!ev_is_active (w))) |
3889 | if (expect_false (!ev_is_active (w))) |
3282 | return; |
3890 | return; |
… | |
… | |
3291 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3899 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3292 | |
3900 | |
3293 | EV_FREQUENT_CHECK; |
3901 | EV_FREQUENT_CHECK; |
3294 | } |
3902 | } |
3295 | |
3903 | |
3296 | void noinline |
3904 | noinline |
|
|
3905 | void |
3297 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3906 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3298 | { |
3907 | { |
3299 | if (expect_false (ev_is_active (w))) |
3908 | if (expect_false (ev_is_active (w))) |
3300 | return; |
3909 | return; |
3301 | |
3910 | |
… | |
… | |
3315 | EV_FREQUENT_CHECK; |
3924 | EV_FREQUENT_CHECK; |
3316 | |
3925 | |
3317 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3926 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3318 | } |
3927 | } |
3319 | |
3928 | |
3320 | void noinline |
3929 | noinline |
|
|
3930 | void |
3321 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3931 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3322 | { |
3932 | { |
3323 | clear_pending (EV_A_ (W)w); |
3933 | clear_pending (EV_A_ (W)w); |
3324 | if (expect_false (!ev_is_active (w))) |
3934 | if (expect_false (!ev_is_active (w))) |
3325 | return; |
3935 | return; |
… | |
… | |
3345 | ev_stop (EV_A_ (W)w); |
3955 | ev_stop (EV_A_ (W)w); |
3346 | |
3956 | |
3347 | EV_FREQUENT_CHECK; |
3957 | EV_FREQUENT_CHECK; |
3348 | } |
3958 | } |
3349 | |
3959 | |
3350 | void noinline |
3960 | noinline |
|
|
3961 | void |
3351 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3962 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3352 | { |
3963 | { |
3353 | EV_FREQUENT_CHECK; |
3964 | EV_FREQUENT_CHECK; |
3354 | |
3965 | |
3355 | clear_pending (EV_A_ (W)w); |
3966 | clear_pending (EV_A_ (W)w); |
… | |
… | |
3379 | { |
3990 | { |
3380 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3991 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3381 | } |
3992 | } |
3382 | |
3993 | |
3383 | #if EV_PERIODIC_ENABLE |
3994 | #if EV_PERIODIC_ENABLE |
3384 | void noinline |
3995 | noinline |
|
|
3996 | void |
3385 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3997 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3386 | { |
3998 | { |
3387 | if (expect_false (ev_is_active (w))) |
3999 | if (expect_false (ev_is_active (w))) |
3388 | return; |
4000 | return; |
3389 | |
4001 | |
… | |
… | |
3409 | EV_FREQUENT_CHECK; |
4021 | EV_FREQUENT_CHECK; |
3410 | |
4022 | |
3411 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4023 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3412 | } |
4024 | } |
3413 | |
4025 | |
3414 | void noinline |
4026 | noinline |
|
|
4027 | void |
3415 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4028 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3416 | { |
4029 | { |
3417 | clear_pending (EV_A_ (W)w); |
4030 | clear_pending (EV_A_ (W)w); |
3418 | if (expect_false (!ev_is_active (w))) |
4031 | if (expect_false (!ev_is_active (w))) |
3419 | return; |
4032 | return; |
… | |
… | |
3437 | ev_stop (EV_A_ (W)w); |
4050 | ev_stop (EV_A_ (W)w); |
3438 | |
4051 | |
3439 | EV_FREQUENT_CHECK; |
4052 | EV_FREQUENT_CHECK; |
3440 | } |
4053 | } |
3441 | |
4054 | |
3442 | void noinline |
4055 | noinline |
|
|
4056 | void |
3443 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4057 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3444 | { |
4058 | { |
3445 | /* TODO: use adjustheap and recalculation */ |
4059 | /* TODO: use adjustheap and recalculation */ |
3446 | ev_periodic_stop (EV_A_ w); |
4060 | ev_periodic_stop (EV_A_ w); |
3447 | ev_periodic_start (EV_A_ w); |
4061 | ev_periodic_start (EV_A_ w); |
… | |
… | |
3452 | # define SA_RESTART 0 |
4066 | # define SA_RESTART 0 |
3453 | #endif |
4067 | #endif |
3454 | |
4068 | |
3455 | #if EV_SIGNAL_ENABLE |
4069 | #if EV_SIGNAL_ENABLE |
3456 | |
4070 | |
3457 | void noinline |
4071 | noinline |
|
|
4072 | void |
3458 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4073 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3459 | { |
4074 | { |
3460 | if (expect_false (ev_is_active (w))) |
4075 | if (expect_false (ev_is_active (w))) |
3461 | return; |
4076 | return; |
3462 | |
4077 | |
… | |
… | |
3465 | #if EV_MULTIPLICITY |
4080 | #if EV_MULTIPLICITY |
3466 | assert (("libev: a signal must not be attached to two different loops", |
4081 | assert (("libev: a signal must not be attached to two different loops", |
3467 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4082 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3468 | |
4083 | |
3469 | signals [w->signum - 1].loop = EV_A; |
4084 | signals [w->signum - 1].loop = EV_A; |
|
|
4085 | ECB_MEMORY_FENCE_RELEASE; |
3470 | #endif |
4086 | #endif |
3471 | |
4087 | |
3472 | EV_FREQUENT_CHECK; |
4088 | EV_FREQUENT_CHECK; |
3473 | |
4089 | |
3474 | #if EV_USE_SIGNALFD |
4090 | #if EV_USE_SIGNALFD |
… | |
… | |
3533 | } |
4149 | } |
3534 | |
4150 | |
3535 | EV_FREQUENT_CHECK; |
4151 | EV_FREQUENT_CHECK; |
3536 | } |
4152 | } |
3537 | |
4153 | |
3538 | void noinline |
4154 | noinline |
|
|
4155 | void |
3539 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4156 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3540 | { |
4157 | { |
3541 | clear_pending (EV_A_ (W)w); |
4158 | clear_pending (EV_A_ (W)w); |
3542 | if (expect_false (!ev_is_active (w))) |
4159 | if (expect_false (!ev_is_active (w))) |
3543 | return; |
4160 | return; |
… | |
… | |
3619 | |
4236 | |
3620 | #define DEF_STAT_INTERVAL 5.0074891 |
4237 | #define DEF_STAT_INTERVAL 5.0074891 |
3621 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4238 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3622 | #define MIN_STAT_INTERVAL 0.1074891 |
4239 | #define MIN_STAT_INTERVAL 0.1074891 |
3623 | |
4240 | |
3624 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4241 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3625 | |
4242 | |
3626 | #if EV_USE_INOTIFY |
4243 | #if EV_USE_INOTIFY |
3627 | |
4244 | |
3628 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4245 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3629 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4246 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3630 | |
4247 | |
3631 | static void noinline |
4248 | noinline |
|
|
4249 | static void |
3632 | infy_add (EV_P_ ev_stat *w) |
4250 | infy_add (EV_P_ ev_stat *w) |
3633 | { |
4251 | { |
3634 | 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); |
4252 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4253 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4254 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4255 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3635 | |
4256 | |
3636 | if (w->wd >= 0) |
4257 | if (w->wd >= 0) |
3637 | { |
4258 | { |
3638 | struct statfs sfs; |
4259 | struct statfs sfs; |
3639 | |
4260 | |
… | |
… | |
3643 | |
4264 | |
3644 | if (!fs_2625) |
4265 | if (!fs_2625) |
3645 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4266 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3646 | else if (!statfs (w->path, &sfs) |
4267 | else if (!statfs (w->path, &sfs) |
3647 | && (sfs.f_type == 0x1373 /* devfs */ |
4268 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4269 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4270 | || sfs.f_type == 0x4d44 /* msdos */ |
3648 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4271 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4272 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4273 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4274 | || sfs.f_type == 0x5346544e /* ntfs */ |
3649 | || sfs.f_type == 0x3153464a /* jfs */ |
4275 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4276 | || sfs.f_type == 0x9123683e /* btrfs */ |
3650 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4277 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3651 | || sfs.f_type == 0x01021994 /* tempfs */ |
4278 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3652 | || sfs.f_type == 0x58465342 /* xfs */)) |
4279 | || sfs.f_type == 0x58465342 /* xfs */)) |
3653 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4280 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3654 | else |
4281 | else |
3655 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4282 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3656 | } |
4283 | } |
… | |
… | |
3691 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4318 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3692 | ev_timer_again (EV_A_ &w->timer); |
4319 | ev_timer_again (EV_A_ &w->timer); |
3693 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4320 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3694 | } |
4321 | } |
3695 | |
4322 | |
3696 | static void noinline |
4323 | noinline |
|
|
4324 | static void |
3697 | infy_del (EV_P_ ev_stat *w) |
4325 | infy_del (EV_P_ ev_stat *w) |
3698 | { |
4326 | { |
3699 | int slot; |
4327 | int slot; |
3700 | int wd = w->wd; |
4328 | int wd = w->wd; |
3701 | |
4329 | |
… | |
… | |
3708 | |
4336 | |
3709 | /* remove this watcher, if others are watching it, they will rearm */ |
4337 | /* remove this watcher, if others are watching it, they will rearm */ |
3710 | inotify_rm_watch (fs_fd, wd); |
4338 | inotify_rm_watch (fs_fd, wd); |
3711 | } |
4339 | } |
3712 | |
4340 | |
3713 | static void noinline |
4341 | noinline |
|
|
4342 | static void |
3714 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4343 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3715 | { |
4344 | { |
3716 | if (slot < 0) |
4345 | if (slot < 0) |
3717 | /* overflow, need to check for all hash slots */ |
4346 | /* overflow, need to check for all hash slots */ |
3718 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4347 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3754 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4383 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3755 | ofs += sizeof (struct inotify_event) + ev->len; |
4384 | ofs += sizeof (struct inotify_event) + ev->len; |
3756 | } |
4385 | } |
3757 | } |
4386 | } |
3758 | |
4387 | |
3759 | inline_size void ecb_cold |
4388 | inline_size ecb_cold |
|
|
4389 | void |
3760 | ev_check_2625 (EV_P) |
4390 | ev_check_2625 (EV_P) |
3761 | { |
4391 | { |
3762 | /* kernels < 2.6.25 are borked |
4392 | /* kernels < 2.6.25 are borked |
3763 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4393 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3764 | */ |
4394 | */ |
… | |
… | |
3862 | w->attr.st_nlink = 0; |
4492 | w->attr.st_nlink = 0; |
3863 | else if (!w->attr.st_nlink) |
4493 | else if (!w->attr.st_nlink) |
3864 | w->attr.st_nlink = 1; |
4494 | w->attr.st_nlink = 1; |
3865 | } |
4495 | } |
3866 | |
4496 | |
3867 | static void noinline |
4497 | noinline |
|
|
4498 | static void |
3868 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4499 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3869 | { |
4500 | { |
3870 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4501 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3871 | |
4502 | |
3872 | ev_statdata prev = w->attr; |
4503 | ev_statdata prev = w->attr; |
… | |
… | |
4082 | EV_FREQUENT_CHECK; |
4713 | EV_FREQUENT_CHECK; |
4083 | } |
4714 | } |
4084 | #endif |
4715 | #endif |
4085 | |
4716 | |
4086 | #if EV_EMBED_ENABLE |
4717 | #if EV_EMBED_ENABLE |
4087 | void noinline |
4718 | noinline |
|
|
4719 | void |
4088 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4720 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4089 | { |
4721 | { |
4090 | ev_run (w->other, EVRUN_NOWAIT); |
4722 | ev_run (w->other, EVRUN_NOWAIT); |
4091 | } |
4723 | } |
4092 | |
4724 | |
… | |
… | |
4389 | } |
5021 | } |
4390 | |
5022 | |
4391 | /*****************************************************************************/ |
5023 | /*****************************************************************************/ |
4392 | |
5024 | |
4393 | #if EV_WALK_ENABLE |
5025 | #if EV_WALK_ENABLE |
4394 | void ecb_cold |
5026 | ecb_cold |
|
|
5027 | void |
4395 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5028 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
4396 | { |
5029 | { |
4397 | int i, j; |
5030 | int i, j; |
4398 | ev_watcher_list *wl, *wn; |
5031 | ev_watcher_list *wl, *wn; |
4399 | |
5032 | |