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 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 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 | * |
… | |
… | |
59 | # endif |
59 | # endif |
60 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
62 | # endif |
62 | # endif |
63 | # endif |
63 | # endif |
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
66 | # endif |
66 | # endif |
67 | |
67 | |
68 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
69 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
183 | # include EV_H |
183 | # include EV_H |
184 | #else |
184 | #else |
185 | # include "ev.h" |
185 | # include "ev.h" |
186 | #endif |
186 | #endif |
187 | |
187 | |
188 | EV_CPP(extern "C" {) |
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
|
|
197 | #endif |
189 | |
198 | |
190 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
191 | # include <sys/time.h> |
200 | # include <sys/time.h> |
192 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
193 | # include <unistd.h> |
202 | # include <unistd.h> |
194 | #else |
203 | #else |
195 | # include <io.h> |
204 | # include <io.h> |
196 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
197 | # include <windows.h> |
207 | # include <windows.h> |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
200 | # endif |
210 | # endif |
201 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
211 | |
221 | |
212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
213 | |
223 | |
214 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
215 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
216 | /* use what's provided */ |
226 | /* use what's provided */ |
217 | #elif defined (NSIG) |
227 | #elif defined NSIG |
218 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
219 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
220 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
221 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
222 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
223 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
224 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
225 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
226 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
227 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
228 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
229 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
230 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
231 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
233 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
235 | #else |
245 | #else |
236 | # error "unable to find value for NSIG, please report" |
246 | # error "unable to find value for NSIG, please report" |
237 | /* to make it compile regardless, just remove the above line, */ |
247 | /* to make it compile regardless, just remove the above line, */ |
238 | /* but consider reporting it, too! :) */ |
248 | /* but consider reporting it, too! :) */ |
… | |
… | |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
251 | # endif |
261 | # endif |
252 | #endif |
262 | #endif |
253 | |
263 | |
254 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
257 | # else |
267 | # else |
258 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
259 | # endif |
269 | # endif |
260 | #endif |
270 | #endif |
… | |
… | |
350 | #endif |
360 | #endif |
351 | |
361 | |
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
353 | /* which makes programs even slower. might work on other unices, too. */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
354 | #if EV_USE_CLOCK_SYSCALL |
364 | #if EV_USE_CLOCK_SYSCALL |
355 | # include <syscall.h> |
365 | # include <sys/syscall.h> |
356 | # ifdef SYS_clock_gettime |
366 | # ifdef SYS_clock_gettime |
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
358 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
359 | # define EV_USE_MONOTONIC 1 |
369 | # define EV_USE_MONOTONIC 1 |
360 | # else |
370 | # else |
… | |
… | |
386 | # define EV_USE_INOTIFY 0 |
396 | # define EV_USE_INOTIFY 0 |
387 | #endif |
397 | #endif |
388 | |
398 | |
389 | #if !EV_USE_NANOSLEEP |
399 | #if !EV_USE_NANOSLEEP |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
391 | # if !defined(_WIN32) && !defined(__hpux) |
401 | # if !defined _WIN32 && !defined __hpux |
392 | # include <sys/select.h> |
402 | # include <sys/select.h> |
393 | # endif |
403 | # endif |
394 | #endif |
404 | #endif |
395 | |
405 | |
396 | #if EV_USE_INOTIFY |
406 | #if EV_USE_INOTIFY |
… | |
… | |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
400 | # ifndef IN_DONT_FOLLOW |
410 | # ifndef IN_DONT_FOLLOW |
401 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
402 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
403 | # endif |
413 | # endif |
404 | #endif |
|
|
405 | |
|
|
406 | #if EV_SELECT_IS_WINSOCKET |
|
|
407 | # include <winsock.h> |
|
|
408 | #endif |
414 | #endif |
409 | |
415 | |
410 | #if EV_USE_EVENTFD |
416 | #if EV_USE_EVENTFD |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
412 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
465 | |
471 | |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
472 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
473 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
468 | |
474 | |
469 | /* the following are taken from libecb */ |
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
470 | /* ecb.h start */ |
476 | /* ECB.H BEGIN */ |
|
|
477 | /* |
|
|
478 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
479 | * |
|
|
480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
481 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
482 | * All rights reserved. |
|
|
483 | * |
|
|
484 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
485 | * tion, are permitted provided that the following conditions are met: |
|
|
486 | * |
|
|
487 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
488 | * this list of conditions and the following disclaimer. |
|
|
489 | * |
|
|
490 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
491 | * notice, this list of conditions and the following disclaimer in the |
|
|
492 | * documentation and/or other materials provided with the distribution. |
|
|
493 | * |
|
|
494 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
495 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
496 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
497 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
498 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
504 | */ |
|
|
505 | |
|
|
506 | #ifndef ECB_H |
|
|
507 | #define ECB_H |
|
|
508 | |
|
|
509 | /* 16 bits major, 16 bits minor */ |
|
|
510 | #define ECB_VERSION 0x00010002 |
|
|
511 | |
|
|
512 | #ifdef _WIN32 |
|
|
513 | typedef signed char int8_t; |
|
|
514 | typedef unsigned char uint8_t; |
|
|
515 | typedef signed short int16_t; |
|
|
516 | typedef unsigned short uint16_t; |
|
|
517 | typedef signed int int32_t; |
|
|
518 | typedef unsigned int uint32_t; |
|
|
519 | #if __GNUC__ |
|
|
520 | typedef signed long long int64_t; |
|
|
521 | typedef unsigned long long uint64_t; |
|
|
522 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
523 | typedef signed __int64 int64_t; |
|
|
524 | typedef unsigned __int64 uint64_t; |
|
|
525 | #endif |
|
|
526 | #ifdef _WIN64 |
|
|
527 | #define ECB_PTRSIZE 8 |
|
|
528 | typedef uint64_t uintptr_t; |
|
|
529 | typedef int64_t intptr_t; |
|
|
530 | #else |
|
|
531 | #define ECB_PTRSIZE 4 |
|
|
532 | typedef uint32_t uintptr_t; |
|
|
533 | typedef int32_t intptr_t; |
|
|
534 | #endif |
|
|
535 | #else |
|
|
536 | #include <inttypes.h> |
|
|
537 | #if UINTMAX_MAX > 0xffffffffU |
|
|
538 | #define ECB_PTRSIZE 8 |
|
|
539 | #else |
|
|
540 | #define ECB_PTRSIZE 4 |
|
|
541 | #endif |
|
|
542 | #endif |
471 | |
543 | |
472 | /* many compilers define _GNUC_ to some versions but then only implement |
544 | /* many compilers define _GNUC_ to some versions but then only implement |
473 | * what their idiot authors think are the "more important" extensions, |
545 | * what their idiot authors think are the "more important" extensions, |
474 | * causing enourmous grief in return for some better fake benchmark numbers. |
546 | * causing enormous grief in return for some better fake benchmark numbers. |
475 | * or so. |
547 | * or so. |
476 | * we try to detect these and simply assume they are not gcc - if they have |
548 | * we try to detect these and simply assume they are not gcc - if they have |
477 | * an issue with that they should have done it right in the first place. |
549 | * an issue with that they should have done it right in the first place. |
478 | */ |
550 | */ |
479 | #ifndef ECB_GCC_VERSION |
551 | #ifndef ECB_GCC_VERSION |
480 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
552 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
481 | #define ECB_GCC_VERSION(major,minor) 0 |
553 | #define ECB_GCC_VERSION(major,minor) 0 |
482 | #else |
554 | #else |
483 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
555 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
484 | #endif |
556 | #endif |
485 | #endif |
557 | #endif |
|
|
558 | |
|
|
559 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
560 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
561 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
562 | #define ECB_CPP (__cplusplus+0) |
|
|
563 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
564 | |
|
|
565 | #if ECB_CPP |
|
|
566 | #define ECB_EXTERN_C extern "C" |
|
|
567 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
568 | #define ECB_EXTERN_C_END } |
|
|
569 | #else |
|
|
570 | #define ECB_EXTERN_C extern |
|
|
571 | #define ECB_EXTERN_C_BEG |
|
|
572 | #define ECB_EXTERN_C_END |
|
|
573 | #endif |
|
|
574 | |
|
|
575 | /*****************************************************************************/ |
|
|
576 | |
|
|
577 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
578 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
579 | |
|
|
580 | #if ECB_NO_THREADS |
|
|
581 | #define ECB_NO_SMP 1 |
|
|
582 | #endif |
|
|
583 | |
|
|
584 | #if ECB_NO_SMP |
|
|
585 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
586 | #endif |
|
|
587 | |
|
|
588 | #ifndef ECB_MEMORY_FENCE |
|
|
589 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
590 | #if __i386 || __i386__ |
|
|
591 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
592 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
593 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
594 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
595 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
596 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
597 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
598 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
599 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
600 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
601 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
603 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
604 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
606 | #elif __sparc || __sparc__ |
|
|
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
610 | #elif defined __s390__ || defined __s390x__ |
|
|
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
612 | #elif defined __mips__ |
|
|
613 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
614 | #elif defined __alpha__ |
|
|
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
616 | #elif defined __hppa__ |
|
|
617 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
618 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
619 | #elif defined __ia64__ |
|
|
620 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
621 | #endif |
|
|
622 | #endif |
|
|
623 | #endif |
|
|
624 | |
|
|
625 | #ifndef ECB_MEMORY_FENCE |
|
|
626 | #if ECB_GCC_VERSION(4,7) |
|
|
627 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
628 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
629 | |
|
|
630 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
631 | * without risking compile time errors with other compilers. We *could* |
|
|
632 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
633 | * around this shit time and again. |
|
|
634 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
635 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
636 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
637 | */ |
|
|
638 | |
|
|
639 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
640 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
641 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
642 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
643 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
644 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
645 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
646 | #elif defined _WIN32 |
|
|
647 | #include <WinNT.h> |
|
|
648 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
649 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
650 | #include <mbarrier.h> |
|
|
651 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
652 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
653 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
654 | #elif __xlC__ |
|
|
655 | #define ECB_MEMORY_FENCE __sync () |
|
|
656 | #endif |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | #ifndef ECB_MEMORY_FENCE |
|
|
660 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
661 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
662 | /* not just C11 atomics and atomic accesses */ |
|
|
663 | #include <stdatomic.h> |
|
|
664 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
665 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
666 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
667 | /* for most usages, or gcc and clang have a bug */ |
|
|
668 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
669 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
670 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
671 | #endif |
|
|
672 | #endif |
|
|
673 | |
|
|
674 | #ifndef ECB_MEMORY_FENCE |
|
|
675 | #if !ECB_AVOID_PTHREADS |
|
|
676 | /* |
|
|
677 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
678 | * or failure to find pthread.h, then you should implement |
|
|
679 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
680 | * OR provide pthread.h and link against the posix thread library |
|
|
681 | * of your system. |
|
|
682 | */ |
|
|
683 | #include <pthread.h> |
|
|
684 | #define ECB_NEEDS_PTHREADS 1 |
|
|
685 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
686 | |
|
|
687 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
688 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
689 | #endif |
|
|
690 | #endif |
|
|
691 | |
|
|
692 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
693 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
694 | #endif |
|
|
695 | |
|
|
696 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
697 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
698 | #endif |
|
|
699 | |
|
|
700 | /*****************************************************************************/ |
486 | |
701 | |
487 | #if __cplusplus |
702 | #if __cplusplus |
488 | #define ecb_inline static inline |
703 | #define ecb_inline static inline |
489 | #elif ECB_GCC_VERSION(2,5) |
704 | #elif ECB_GCC_VERSION(2,5) |
490 | #define ecb_inline static __inline__ |
705 | #define ecb_inline static __inline__ |
491 | #elif ECB_C99 |
706 | #elif ECB_C99 |
492 | #define ecb_inline static inline |
707 | #define ecb_inline static inline |
493 | #else |
708 | #else |
494 | #define ecb_inline static |
709 | #define ecb_inline static |
495 | #endif |
710 | #endif |
|
|
711 | |
|
|
712 | #if ECB_GCC_VERSION(3,3) |
|
|
713 | #define ecb_restrict __restrict__ |
|
|
714 | #elif ECB_C99 |
|
|
715 | #define ecb_restrict restrict |
|
|
716 | #else |
|
|
717 | #define ecb_restrict |
|
|
718 | #endif |
|
|
719 | |
|
|
720 | typedef int ecb_bool; |
|
|
721 | |
|
|
722 | #define ECB_CONCAT_(a, b) a ## b |
|
|
723 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
724 | #define ECB_STRINGIFY_(a) # a |
|
|
725 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
726 | |
|
|
727 | #define ecb_function_ ecb_inline |
496 | |
728 | |
497 | #if ECB_GCC_VERSION(3,1) |
729 | #if ECB_GCC_VERSION(3,1) |
498 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
730 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
499 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
731 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
500 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
732 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
… | |
… | |
504 | #define ecb_is_constant(expr) 0 |
736 | #define ecb_is_constant(expr) 0 |
505 | #define ecb_expect(expr,value) (expr) |
737 | #define ecb_expect(expr,value) (expr) |
506 | #define ecb_prefetch(addr,rw,locality) |
738 | #define ecb_prefetch(addr,rw,locality) |
507 | #endif |
739 | #endif |
508 | |
740 | |
|
|
741 | /* no emulation for ecb_decltype */ |
|
|
742 | #if ECB_GCC_VERSION(4,5) |
|
|
743 | #define ecb_decltype(x) __decltype(x) |
|
|
744 | #elif ECB_GCC_VERSION(3,0) |
|
|
745 | #define ecb_decltype(x) __typeof(x) |
|
|
746 | #endif |
|
|
747 | |
509 | #define ecb_noinline ecb_attribute ((__noinline__)) |
748 | #define ecb_noinline ecb_attribute ((__noinline__)) |
510 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
511 | #define ecb_unused ecb_attribute ((__unused__)) |
749 | #define ecb_unused ecb_attribute ((__unused__)) |
512 | #define ecb_const ecb_attribute ((__const__)) |
750 | #define ecb_const ecb_attribute ((__const__)) |
513 | #define ecb_pure ecb_attribute ((__pure__)) |
751 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
752 | |
|
|
753 | #if ECB_C11 |
|
|
754 | #define ecb_noreturn _Noreturn |
|
|
755 | #else |
|
|
756 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
757 | #endif |
514 | |
758 | |
515 | #if ECB_GCC_VERSION(4,3) |
759 | #if ECB_GCC_VERSION(4,3) |
516 | #define ecb_artificial ecb_attribute ((__artificial__)) |
760 | #define ecb_artificial ecb_attribute ((__artificial__)) |
517 | #define ecb_hot ecb_attribute ((__hot__)) |
761 | #define ecb_hot ecb_attribute ((__hot__)) |
518 | #define ecb_cold ecb_attribute ((__cold__)) |
762 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
525 | /* put around conditional expressions if you are very sure that the */ |
769 | /* put around conditional expressions if you are very sure that the */ |
526 | /* expression is mostly true or mostly false. note that these return */ |
770 | /* expression is mostly true or mostly false. note that these return */ |
527 | /* booleans, not the expression. */ |
771 | /* booleans, not the expression. */ |
528 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
772 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
529 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
773 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
530 | /* ecb.h end */ |
774 | /* for compatibility to the rest of the world */ |
|
|
775 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
776 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
777 | |
|
|
778 | /* count trailing zero bits and count # of one bits */ |
|
|
779 | #if ECB_GCC_VERSION(3,4) |
|
|
780 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
781 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
782 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
783 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
784 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
785 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
786 | /* no popcountll */ |
|
|
787 | #else |
|
|
788 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
789 | ecb_function_ int |
|
|
790 | ecb_ctz32 (uint32_t x) |
|
|
791 | { |
|
|
792 | int r = 0; |
|
|
793 | |
|
|
794 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
795 | |
|
|
796 | #if ECB_branchless_on_i386 |
|
|
797 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
798 | r += !!(x & 0xcccccccc) << 1; |
|
|
799 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
800 | r += !!(x & 0xff00ff00) << 3; |
|
|
801 | r += !!(x & 0xffff0000) << 4; |
|
|
802 | #else |
|
|
803 | if (x & 0xaaaaaaaa) r += 1; |
|
|
804 | if (x & 0xcccccccc) r += 2; |
|
|
805 | if (x & 0xf0f0f0f0) r += 4; |
|
|
806 | if (x & 0xff00ff00) r += 8; |
|
|
807 | if (x & 0xffff0000) r += 16; |
|
|
808 | #endif |
|
|
809 | |
|
|
810 | return r; |
|
|
811 | } |
|
|
812 | |
|
|
813 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
814 | ecb_function_ int |
|
|
815 | ecb_ctz64 (uint64_t x) |
|
|
816 | { |
|
|
817 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
818 | return ecb_ctz32 (x >> shift) + shift; |
|
|
819 | } |
|
|
820 | |
|
|
821 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
822 | ecb_function_ int |
|
|
823 | ecb_popcount32 (uint32_t x) |
|
|
824 | { |
|
|
825 | x -= (x >> 1) & 0x55555555; |
|
|
826 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
827 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
828 | x *= 0x01010101; |
|
|
829 | |
|
|
830 | return x >> 24; |
|
|
831 | } |
|
|
832 | |
|
|
833 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
834 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
835 | { |
|
|
836 | int r = 0; |
|
|
837 | |
|
|
838 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
839 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
840 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
841 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
842 | if (x >> 1) { r += 1; } |
|
|
843 | |
|
|
844 | return r; |
|
|
845 | } |
|
|
846 | |
|
|
847 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
848 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
849 | { |
|
|
850 | int r = 0; |
|
|
851 | |
|
|
852 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
853 | |
|
|
854 | return r + ecb_ld32 (x); |
|
|
855 | } |
|
|
856 | #endif |
|
|
857 | |
|
|
858 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
859 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
860 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
861 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
862 | |
|
|
863 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
864 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
865 | { |
|
|
866 | return ( (x * 0x0802U & 0x22110U) |
|
|
867 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
868 | } |
|
|
869 | |
|
|
870 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
871 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
872 | { |
|
|
873 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
874 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
875 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
876 | x = ( x >> 8 ) | ( x << 8); |
|
|
877 | |
|
|
878 | return x; |
|
|
879 | } |
|
|
880 | |
|
|
881 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
882 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
883 | { |
|
|
884 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
885 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
886 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
887 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
888 | x = ( x >> 16 ) | ( x << 16); |
|
|
889 | |
|
|
890 | return x; |
|
|
891 | } |
|
|
892 | |
|
|
893 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
894 | /* so for this version we are lazy */ |
|
|
895 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
896 | ecb_function_ int |
|
|
897 | ecb_popcount64 (uint64_t x) |
|
|
898 | { |
|
|
899 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
900 | } |
|
|
901 | |
|
|
902 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
903 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
904 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
905 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
906 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
907 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
908 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
909 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
910 | |
|
|
911 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
912 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
913 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
914 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
915 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
916 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
917 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
918 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
919 | |
|
|
920 | #if ECB_GCC_VERSION(4,3) |
|
|
921 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
922 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
923 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
924 | #else |
|
|
925 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
926 | ecb_function_ uint16_t |
|
|
927 | ecb_bswap16 (uint16_t x) |
|
|
928 | { |
|
|
929 | return ecb_rotl16 (x, 8); |
|
|
930 | } |
|
|
931 | |
|
|
932 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
933 | ecb_function_ uint32_t |
|
|
934 | ecb_bswap32 (uint32_t x) |
|
|
935 | { |
|
|
936 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
937 | } |
|
|
938 | |
|
|
939 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
940 | ecb_function_ uint64_t |
|
|
941 | ecb_bswap64 (uint64_t x) |
|
|
942 | { |
|
|
943 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
944 | } |
|
|
945 | #endif |
|
|
946 | |
|
|
947 | #if ECB_GCC_VERSION(4,5) |
|
|
948 | #define ecb_unreachable() __builtin_unreachable () |
|
|
949 | #else |
|
|
950 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
951 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
952 | ecb_inline void ecb_unreachable (void) { } |
|
|
953 | #endif |
|
|
954 | |
|
|
955 | /* try to tell the compiler that some condition is definitely true */ |
|
|
956 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
957 | |
|
|
958 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
959 | ecb_inline unsigned char |
|
|
960 | ecb_byteorder_helper (void) |
|
|
961 | { |
|
|
962 | /* the union code still generates code under pressure in gcc, */ |
|
|
963 | /* but less than using pointers, and always seems to */ |
|
|
964 | /* successfully return a constant. */ |
|
|
965 | /* the reason why we have this horrible preprocessor mess */ |
|
|
966 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
967 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
968 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
969 | return 0x44; |
|
|
970 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
971 | return 0x44; |
|
|
972 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
973 | return 0x11; |
|
|
974 | #else |
|
|
975 | union |
|
|
976 | { |
|
|
977 | uint32_t i; |
|
|
978 | uint8_t c; |
|
|
979 | } u = { 0x11223344 }; |
|
|
980 | return u.c; |
|
|
981 | #endif |
|
|
982 | } |
|
|
983 | |
|
|
984 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
985 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
986 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
987 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
988 | |
|
|
989 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
990 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
991 | #else |
|
|
992 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
993 | #endif |
|
|
994 | |
|
|
995 | #if __cplusplus |
|
|
996 | template<typename T> |
|
|
997 | static inline T ecb_div_rd (T val, T div) |
|
|
998 | { |
|
|
999 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1000 | } |
|
|
1001 | template<typename T> |
|
|
1002 | static inline T ecb_div_ru (T val, T div) |
|
|
1003 | { |
|
|
1004 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1005 | } |
|
|
1006 | #else |
|
|
1007 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1008 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1009 | #endif |
|
|
1010 | |
|
|
1011 | #if ecb_cplusplus_does_not_suck |
|
|
1012 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1013 | template<typename T, int N> |
|
|
1014 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1015 | { |
|
|
1016 | return N; |
|
|
1017 | } |
|
|
1018 | #else |
|
|
1019 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1020 | #endif |
|
|
1021 | |
|
|
1022 | /*******************************************************************************/ |
|
|
1023 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1024 | |
|
|
1025 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1026 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1027 | #if 0 \ |
|
|
1028 | || __i386 || __i386__ \ |
|
|
1029 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1030 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1031 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1032 | || defined __s390__ || defined __s390x__ \ |
|
|
1033 | || defined __mips__ \ |
|
|
1034 | || defined __alpha__ \ |
|
|
1035 | || defined __hppa__ \ |
|
|
1036 | || defined __ia64__ \ |
|
|
1037 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1038 | #define ECB_STDFP 1 |
|
|
1039 | #include <string.h> /* for memcpy */ |
|
|
1040 | #else |
|
|
1041 | #define ECB_STDFP 0 |
|
|
1042 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1043 | #endif |
|
|
1044 | |
|
|
1045 | #ifndef ECB_NO_LIBM |
|
|
1046 | |
|
|
1047 | /* convert a float to ieee single/binary32 */ |
|
|
1048 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1049 | ecb_function_ uint32_t |
|
|
1050 | ecb_float_to_binary32 (float x) |
|
|
1051 | { |
|
|
1052 | uint32_t r; |
|
|
1053 | |
|
|
1054 | #if ECB_STDFP |
|
|
1055 | memcpy (&r, &x, 4); |
|
|
1056 | #else |
|
|
1057 | /* slow emulation, works for anything but -0 */ |
|
|
1058 | uint32_t m; |
|
|
1059 | int e; |
|
|
1060 | |
|
|
1061 | if (x == 0e0f ) return 0x00000000U; |
|
|
1062 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1063 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1064 | if (x != x ) return 0x7fbfffffU; |
|
|
1065 | |
|
|
1066 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1067 | |
|
|
1068 | r = m & 0x80000000U; |
|
|
1069 | |
|
|
1070 | if (r) |
|
|
1071 | m = -m; |
|
|
1072 | |
|
|
1073 | if (e <= -126) |
|
|
1074 | { |
|
|
1075 | m &= 0xffffffU; |
|
|
1076 | m >>= (-125 - e); |
|
|
1077 | e = -126; |
|
|
1078 | } |
|
|
1079 | |
|
|
1080 | r |= (e + 126) << 23; |
|
|
1081 | r |= m & 0x7fffffU; |
|
|
1082 | #endif |
|
|
1083 | |
|
|
1084 | return r; |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | /* converts an ieee single/binary32 to a float */ |
|
|
1088 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1089 | ecb_function_ float |
|
|
1090 | ecb_binary32_to_float (uint32_t x) |
|
|
1091 | { |
|
|
1092 | float r; |
|
|
1093 | |
|
|
1094 | #if ECB_STDFP |
|
|
1095 | memcpy (&r, &x, 4); |
|
|
1096 | #else |
|
|
1097 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1098 | int neg = x >> 31; |
|
|
1099 | int e = (x >> 23) & 0xffU; |
|
|
1100 | |
|
|
1101 | x &= 0x7fffffU; |
|
|
1102 | |
|
|
1103 | if (e) |
|
|
1104 | x |= 0x800000U; |
|
|
1105 | else |
|
|
1106 | e = 1; |
|
|
1107 | |
|
|
1108 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1109 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1110 | |
|
|
1111 | r = neg ? -r : r; |
|
|
1112 | #endif |
|
|
1113 | |
|
|
1114 | return r; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | /* convert a double to ieee double/binary64 */ |
|
|
1118 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1119 | ecb_function_ uint64_t |
|
|
1120 | ecb_double_to_binary64 (double x) |
|
|
1121 | { |
|
|
1122 | uint64_t r; |
|
|
1123 | |
|
|
1124 | #if ECB_STDFP |
|
|
1125 | memcpy (&r, &x, 8); |
|
|
1126 | #else |
|
|
1127 | /* slow emulation, works for anything but -0 */ |
|
|
1128 | uint64_t m; |
|
|
1129 | int e; |
|
|
1130 | |
|
|
1131 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1132 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1133 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1134 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1135 | |
|
|
1136 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1137 | |
|
|
1138 | r = m & 0x8000000000000000;; |
|
|
1139 | |
|
|
1140 | if (r) |
|
|
1141 | m = -m; |
|
|
1142 | |
|
|
1143 | if (e <= -1022) |
|
|
1144 | { |
|
|
1145 | m &= 0x1fffffffffffffU; |
|
|
1146 | m >>= (-1021 - e); |
|
|
1147 | e = -1022; |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1151 | r |= m & 0xfffffffffffffU; |
|
|
1152 | #endif |
|
|
1153 | |
|
|
1154 | return r; |
|
|
1155 | } |
|
|
1156 | |
|
|
1157 | /* converts an ieee double/binary64 to a double */ |
|
|
1158 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1159 | ecb_function_ double |
|
|
1160 | ecb_binary64_to_double (uint64_t x) |
|
|
1161 | { |
|
|
1162 | double r; |
|
|
1163 | |
|
|
1164 | #if ECB_STDFP |
|
|
1165 | memcpy (&r, &x, 8); |
|
|
1166 | #else |
|
|
1167 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1168 | int neg = x >> 63; |
|
|
1169 | int e = (x >> 52) & 0x7ffU; |
|
|
1170 | |
|
|
1171 | x &= 0xfffffffffffffU; |
|
|
1172 | |
|
|
1173 | if (e) |
|
|
1174 | x |= 0x10000000000000U; |
|
|
1175 | else |
|
|
1176 | e = 1; |
|
|
1177 | |
|
|
1178 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1179 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1180 | |
|
|
1181 | r = neg ? -r : r; |
|
|
1182 | #endif |
|
|
1183 | |
|
|
1184 | return r; |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | #endif |
|
|
1188 | |
|
|
1189 | #endif |
|
|
1190 | |
|
|
1191 | /* ECB.H END */ |
|
|
1192 | |
|
|
1193 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1194 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1195 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1196 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1197 | * libev, in which cases the memory fences become nops. |
|
|
1198 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1199 | * which will then provide the memory fences. |
|
|
1200 | */ |
|
|
1201 | # error "memory fences not defined for your architecture, please report" |
|
|
1202 | #endif |
|
|
1203 | |
|
|
1204 | #ifndef ECB_MEMORY_FENCE |
|
|
1205 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1206 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1207 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1208 | #endif |
531 | |
1209 | |
532 | #define expect_false(cond) ecb_expect_false (cond) |
1210 | #define expect_false(cond) ecb_expect_false (cond) |
533 | #define expect_true(cond) ecb_expect_true (cond) |
1211 | #define expect_true(cond) ecb_expect_true (cond) |
534 | #define noinline ecb_noinline |
1212 | #define noinline ecb_noinline |
535 | |
1213 | |
… | |
… | |
681 | { |
1359 | { |
682 | write (STDERR_FILENO, msg, strlen (msg)); |
1360 | write (STDERR_FILENO, msg, strlen (msg)); |
683 | } |
1361 | } |
684 | #endif |
1362 | #endif |
685 | |
1363 | |
686 | static void (*syserr_cb)(const char *msg); |
1364 | static void (*syserr_cb)(const char *msg) EV_THROW; |
687 | |
1365 | |
688 | void ecb_cold |
1366 | void ecb_cold |
689 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1367 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
690 | { |
1368 | { |
691 | syserr_cb = cb; |
1369 | syserr_cb = cb; |
692 | } |
1370 | } |
693 | |
1371 | |
694 | static void noinline ecb_cold |
1372 | static void noinline ecb_cold |
… | |
… | |
712 | abort (); |
1390 | abort (); |
713 | } |
1391 | } |
714 | } |
1392 | } |
715 | |
1393 | |
716 | static void * |
1394 | static void * |
717 | ev_realloc_emul (void *ptr, long size) |
1395 | ev_realloc_emul (void *ptr, long size) EV_THROW |
718 | { |
1396 | { |
719 | #if __GLIBC__ |
|
|
720 | return realloc (ptr, size); |
|
|
721 | #else |
|
|
722 | /* some systems, notably openbsd and darwin, fail to properly |
1397 | /* some systems, notably openbsd and darwin, fail to properly |
723 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1398 | * implement realloc (x, 0) (as required by both ansi c-89 and |
724 | * the single unix specification, so work around them here. |
1399 | * the single unix specification, so work around them here. |
|
|
1400 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1401 | * despite documenting it otherwise. |
725 | */ |
1402 | */ |
726 | |
1403 | |
727 | if (size) |
1404 | if (size) |
728 | return realloc (ptr, size); |
1405 | return realloc (ptr, size); |
729 | |
1406 | |
730 | free (ptr); |
1407 | free (ptr); |
731 | return 0; |
1408 | return 0; |
732 | #endif |
|
|
733 | } |
1409 | } |
734 | |
1410 | |
735 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1411 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
736 | |
1412 | |
737 | void ecb_cold |
1413 | void ecb_cold |
738 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1414 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
739 | { |
1415 | { |
740 | alloc = cb; |
1416 | alloc = cb; |
741 | } |
1417 | } |
742 | |
1418 | |
743 | inline_speed void * |
1419 | inline_speed void * |
… | |
… | |
831 | #undef VAR |
1507 | #undef VAR |
832 | }; |
1508 | }; |
833 | #include "ev_wrap.h" |
1509 | #include "ev_wrap.h" |
834 | |
1510 | |
835 | static struct ev_loop default_loop_struct; |
1511 | static struct ev_loop default_loop_struct; |
836 | struct ev_loop *ev_default_loop_ptr; |
1512 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
837 | |
1513 | |
838 | #else |
1514 | #else |
839 | |
1515 | |
840 | ev_tstamp ev_rt_now; |
1516 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
841 | #define VAR(name,decl) static decl; |
1517 | #define VAR(name,decl) static decl; |
842 | #include "ev_vars.h" |
1518 | #include "ev_vars.h" |
843 | #undef VAR |
1519 | #undef VAR |
844 | |
1520 | |
845 | static int ev_default_loop_ptr; |
1521 | static int ev_default_loop_ptr; |
… | |
… | |
860 | |
1536 | |
861 | /*****************************************************************************/ |
1537 | /*****************************************************************************/ |
862 | |
1538 | |
863 | #ifndef EV_HAVE_EV_TIME |
1539 | #ifndef EV_HAVE_EV_TIME |
864 | ev_tstamp |
1540 | ev_tstamp |
865 | ev_time (void) |
1541 | ev_time (void) EV_THROW |
866 | { |
1542 | { |
867 | #if EV_USE_REALTIME |
1543 | #if EV_USE_REALTIME |
868 | if (expect_true (have_realtime)) |
1544 | if (expect_true (have_realtime)) |
869 | { |
1545 | { |
870 | struct timespec ts; |
1546 | struct timespec ts; |
… | |
… | |
894 | return ev_time (); |
1570 | return ev_time (); |
895 | } |
1571 | } |
896 | |
1572 | |
897 | #if EV_MULTIPLICITY |
1573 | #if EV_MULTIPLICITY |
898 | ev_tstamp |
1574 | ev_tstamp |
899 | ev_now (EV_P) |
1575 | ev_now (EV_P) EV_THROW |
900 | { |
1576 | { |
901 | return ev_rt_now; |
1577 | return ev_rt_now; |
902 | } |
1578 | } |
903 | #endif |
1579 | #endif |
904 | |
1580 | |
905 | void |
1581 | void |
906 | ev_sleep (ev_tstamp delay) |
1582 | ev_sleep (ev_tstamp delay) EV_THROW |
907 | { |
1583 | { |
908 | if (delay > 0.) |
1584 | if (delay > 0.) |
909 | { |
1585 | { |
910 | #if EV_USE_NANOSLEEP |
1586 | #if EV_USE_NANOSLEEP |
911 | struct timespec ts; |
1587 | struct timespec ts; |
912 | |
1588 | |
913 | EV_TS_SET (ts, delay); |
1589 | EV_TS_SET (ts, delay); |
914 | nanosleep (&ts, 0); |
1590 | nanosleep (&ts, 0); |
915 | #elif defined(_WIN32) |
1591 | #elif defined _WIN32 |
916 | Sleep ((unsigned long)(delay * 1e3)); |
1592 | Sleep ((unsigned long)(delay * 1e3)); |
917 | #else |
1593 | #else |
918 | struct timeval tv; |
1594 | struct timeval tv; |
919 | |
1595 | |
920 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1596 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
939 | |
1615 | |
940 | do |
1616 | do |
941 | ncur <<= 1; |
1617 | ncur <<= 1; |
942 | while (cnt > ncur); |
1618 | while (cnt > ncur); |
943 | |
1619 | |
944 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1620 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
945 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1621 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
946 | { |
1622 | { |
947 | ncur *= elem; |
1623 | ncur *= elem; |
948 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1624 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
949 | ncur = ncur - sizeof (void *) * 4; |
1625 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
964 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1640 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
965 | |
1641 | |
966 | #define array_needsize(type,base,cur,cnt,init) \ |
1642 | #define array_needsize(type,base,cur,cnt,init) \ |
967 | if (expect_false ((cnt) > (cur))) \ |
1643 | if (expect_false ((cnt) > (cur))) \ |
968 | { \ |
1644 | { \ |
969 | int ocur_ = (cur); \ |
1645 | int ecb_unused ocur_ = (cur); \ |
970 | (base) = (type *)array_realloc \ |
1646 | (base) = (type *)array_realloc \ |
971 | (sizeof (type), (base), &(cur), (cnt)); \ |
1647 | (sizeof (type), (base), &(cur), (cnt)); \ |
972 | init ((base) + (ocur_), (cur) - ocur_); \ |
1648 | init ((base) + (ocur_), (cur) - ocur_); \ |
973 | } |
1649 | } |
974 | |
1650 | |
… | |
… | |
992 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1668 | pendingcb (EV_P_ ev_prepare *w, int revents) |
993 | { |
1669 | { |
994 | } |
1670 | } |
995 | |
1671 | |
996 | void noinline |
1672 | void noinline |
997 | ev_feed_event (EV_P_ void *w, int revents) |
1673 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
998 | { |
1674 | { |
999 | W w_ = (W)w; |
1675 | W w_ = (W)w; |
1000 | int pri = ABSPRI (w_); |
1676 | int pri = ABSPRI (w_); |
1001 | |
1677 | |
1002 | if (expect_false (w_->pending)) |
1678 | if (expect_false (w_->pending)) |
… | |
… | |
1006 | w_->pending = ++pendingcnt [pri]; |
1682 | w_->pending = ++pendingcnt [pri]; |
1007 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1683 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1008 | pendings [pri][w_->pending - 1].w = w_; |
1684 | pendings [pri][w_->pending - 1].w = w_; |
1009 | pendings [pri][w_->pending - 1].events = revents; |
1685 | pendings [pri][w_->pending - 1].events = revents; |
1010 | } |
1686 | } |
|
|
1687 | |
|
|
1688 | pendingpri = NUMPRI - 1; |
1011 | } |
1689 | } |
1012 | |
1690 | |
1013 | inline_speed void |
1691 | inline_speed void |
1014 | feed_reverse (EV_P_ W w) |
1692 | feed_reverse (EV_P_ W w) |
1015 | { |
1693 | { |
… | |
… | |
1061 | if (expect_true (!anfd->reify)) |
1739 | if (expect_true (!anfd->reify)) |
1062 | fd_event_nocheck (EV_A_ fd, revents); |
1740 | fd_event_nocheck (EV_A_ fd, revents); |
1063 | } |
1741 | } |
1064 | |
1742 | |
1065 | void |
1743 | void |
1066 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1744 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1067 | { |
1745 | { |
1068 | if (fd >= 0 && fd < anfdmax) |
1746 | if (fd >= 0 && fd < anfdmax) |
1069 | fd_event_nocheck (EV_A_ fd, revents); |
1747 | fd_event_nocheck (EV_A_ fd, revents); |
1070 | } |
1748 | } |
1071 | |
1749 | |
… | |
… | |
1390 | static void noinline ecb_cold |
2068 | static void noinline ecb_cold |
1391 | evpipe_init (EV_P) |
2069 | evpipe_init (EV_P) |
1392 | { |
2070 | { |
1393 | if (!ev_is_active (&pipe_w)) |
2071 | if (!ev_is_active (&pipe_w)) |
1394 | { |
2072 | { |
|
|
2073 | int fds [2]; |
|
|
2074 | |
1395 | # if EV_USE_EVENTFD |
2075 | # if EV_USE_EVENTFD |
|
|
2076 | fds [0] = -1; |
1396 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2077 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1397 | if (evfd < 0 && errno == EINVAL) |
2078 | if (fds [1] < 0 && errno == EINVAL) |
1398 | evfd = eventfd (0, 0); |
2079 | fds [1] = eventfd (0, 0); |
1399 | |
2080 | |
1400 | if (evfd >= 0) |
2081 | if (fds [1] < 0) |
|
|
2082 | # endif |
1401 | { |
2083 | { |
|
|
2084 | while (pipe (fds)) |
|
|
2085 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2086 | |
|
|
2087 | fd_intern (fds [0]); |
|
|
2088 | } |
|
|
2089 | |
|
|
2090 | fd_intern (fds [1]); |
|
|
2091 | |
1402 | evpipe [0] = -1; |
2092 | evpipe [0] = fds [0]; |
1403 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2093 | |
1404 | ev_io_set (&pipe_w, evfd, EV_READ); |
2094 | if (evpipe [1] < 0) |
|
|
2095 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2096 | else |
|
|
2097 | { |
|
|
2098 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2099 | /* so that evpipe_write can always rely on its value. */ |
|
|
2100 | /* this branch does not do anything sensible on windows, */ |
|
|
2101 | /* so must not be executed on windows */ |
|
|
2102 | |
|
|
2103 | dup2 (fds [1], evpipe [1]); |
|
|
2104 | close (fds [1]); |
|
|
2105 | } |
|
|
2106 | |
|
|
2107 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2108 | ev_io_start (EV_A_ &pipe_w); |
|
|
2109 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2110 | } |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | inline_speed void |
|
|
2114 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2115 | { |
|
|
2116 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2117 | |
|
|
2118 | if (expect_true (*flag)) |
|
|
2119 | return; |
|
|
2120 | |
|
|
2121 | *flag = 1; |
|
|
2122 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2123 | |
|
|
2124 | pipe_write_skipped = 1; |
|
|
2125 | |
|
|
2126 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2127 | |
|
|
2128 | if (pipe_write_wanted) |
|
|
2129 | { |
|
|
2130 | int old_errno; |
|
|
2131 | |
|
|
2132 | pipe_write_skipped = 0; |
|
|
2133 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2134 | |
|
|
2135 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2136 | |
|
|
2137 | #if EV_USE_EVENTFD |
|
|
2138 | if (evpipe [0] < 0) |
|
|
2139 | { |
|
|
2140 | uint64_t counter = 1; |
|
|
2141 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1405 | } |
2142 | } |
1406 | else |
2143 | else |
1407 | # endif |
2144 | #endif |
1408 | { |
2145 | { |
1409 | while (pipe (evpipe)) |
2146 | #ifdef _WIN32 |
1410 | ev_syserr ("(libev) error creating signal/async pipe"); |
2147 | WSABUF buf; |
1411 | |
2148 | DWORD sent; |
1412 | fd_intern (evpipe [0]); |
2149 | buf.buf = &buf; |
1413 | fd_intern (evpipe [1]); |
2150 | buf.len = 1; |
1414 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2151 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2152 | #else |
|
|
2153 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2154 | #endif |
1415 | } |
2155 | } |
1416 | |
2156 | |
1417 | ev_io_start (EV_A_ &pipe_w); |
|
|
1418 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1419 | } |
|
|
1420 | } |
|
|
1421 | |
|
|
1422 | inline_speed void |
|
|
1423 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1424 | { |
|
|
1425 | if (!*flag) |
|
|
1426 | { |
|
|
1427 | *flag = 1; |
|
|
1428 | |
|
|
1429 | pipe_write_skipped = 1; |
|
|
1430 | |
|
|
1431 | if (pipe_write_wanted) |
|
|
1432 | { |
|
|
1433 | int old_errno; |
|
|
1434 | |
|
|
1435 | pipe_write_skipped = 0; |
|
|
1436 | |
|
|
1437 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1438 | |
|
|
1439 | #if EV_USE_EVENTFD |
|
|
1440 | if (evfd >= 0) |
|
|
1441 | { |
|
|
1442 | uint64_t counter = 1; |
|
|
1443 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1444 | } |
|
|
1445 | else |
|
|
1446 | #endif |
|
|
1447 | { |
|
|
1448 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1449 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1450 | /* so when you think this write should be a send instead, please find out */ |
|
|
1451 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1452 | /* tell me. thank you. */ |
|
|
1453 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1454 | } |
|
|
1455 | |
|
|
1456 | errno = old_errno; |
2157 | errno = old_errno; |
1457 | } |
|
|
1458 | } |
2158 | } |
1459 | } |
2159 | } |
1460 | |
2160 | |
1461 | /* called whenever the libev signal pipe */ |
2161 | /* called whenever the libev signal pipe */ |
1462 | /* got some events (signal, async) */ |
2162 | /* got some events (signal, async) */ |
… | |
… | |
1466 | int i; |
2166 | int i; |
1467 | |
2167 | |
1468 | if (revents & EV_READ) |
2168 | if (revents & EV_READ) |
1469 | { |
2169 | { |
1470 | #if EV_USE_EVENTFD |
2170 | #if EV_USE_EVENTFD |
1471 | if (evfd >= 0) |
2171 | if (evpipe [0] < 0) |
1472 | { |
2172 | { |
1473 | uint64_t counter; |
2173 | uint64_t counter; |
1474 | read (evfd, &counter, sizeof (uint64_t)); |
2174 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1475 | } |
2175 | } |
1476 | else |
2176 | else |
1477 | #endif |
2177 | #endif |
1478 | { |
2178 | { |
1479 | char dummy; |
2179 | char dummy[4]; |
1480 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2180 | #ifdef _WIN32 |
|
|
2181 | WSABUF buf; |
|
|
2182 | DWORD recvd; |
|
|
2183 | DWORD flags = 0; |
|
|
2184 | buf.buf = dummy; |
|
|
2185 | buf.len = sizeof (dummy); |
|
|
2186 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2187 | #else |
1481 | read (evpipe [0], &dummy, 1); |
2188 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2189 | #endif |
1482 | } |
2190 | } |
1483 | } |
2191 | } |
1484 | |
2192 | |
1485 | pipe_write_skipped = 0; |
2193 | pipe_write_skipped = 0; |
|
|
2194 | |
|
|
2195 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1486 | |
2196 | |
1487 | #if EV_SIGNAL_ENABLE |
2197 | #if EV_SIGNAL_ENABLE |
1488 | if (sig_pending) |
2198 | if (sig_pending) |
1489 | { |
2199 | { |
1490 | sig_pending = 0; |
2200 | sig_pending = 0; |
|
|
2201 | |
|
|
2202 | ECB_MEMORY_FENCE; |
1491 | |
2203 | |
1492 | for (i = EV_NSIG - 1; i--; ) |
2204 | for (i = EV_NSIG - 1; i--; ) |
1493 | if (expect_false (signals [i].pending)) |
2205 | if (expect_false (signals [i].pending)) |
1494 | ev_feed_signal_event (EV_A_ i + 1); |
2206 | ev_feed_signal_event (EV_A_ i + 1); |
1495 | } |
2207 | } |
… | |
… | |
1497 | |
2209 | |
1498 | #if EV_ASYNC_ENABLE |
2210 | #if EV_ASYNC_ENABLE |
1499 | if (async_pending) |
2211 | if (async_pending) |
1500 | { |
2212 | { |
1501 | async_pending = 0; |
2213 | async_pending = 0; |
|
|
2214 | |
|
|
2215 | ECB_MEMORY_FENCE; |
1502 | |
2216 | |
1503 | for (i = asynccnt; i--; ) |
2217 | for (i = asynccnt; i--; ) |
1504 | if (asyncs [i]->sent) |
2218 | if (asyncs [i]->sent) |
1505 | { |
2219 | { |
1506 | asyncs [i]->sent = 0; |
2220 | asyncs [i]->sent = 0; |
|
|
2221 | ECB_MEMORY_FENCE_RELEASE; |
1507 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2222 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1508 | } |
2223 | } |
1509 | } |
2224 | } |
1510 | #endif |
2225 | #endif |
1511 | } |
2226 | } |
1512 | |
2227 | |
1513 | /*****************************************************************************/ |
2228 | /*****************************************************************************/ |
1514 | |
2229 | |
1515 | void |
2230 | void |
1516 | ev_feed_signal (int signum) |
2231 | ev_feed_signal (int signum) EV_THROW |
1517 | { |
2232 | { |
1518 | #if EV_MULTIPLICITY |
2233 | #if EV_MULTIPLICITY |
|
|
2234 | ECB_MEMORY_FENCE_ACQUIRE; |
1519 | EV_P = signals [signum - 1].loop; |
2235 | EV_P = signals [signum - 1].loop; |
1520 | |
2236 | |
1521 | if (!EV_A) |
2237 | if (!EV_A) |
1522 | return; |
2238 | return; |
1523 | #endif |
2239 | #endif |
1524 | |
2240 | |
1525 | evpipe_init (EV_A); |
|
|
1526 | |
|
|
1527 | signals [signum - 1].pending = 1; |
2241 | signals [signum - 1].pending = 1; |
1528 | evpipe_write (EV_A_ &sig_pending); |
2242 | evpipe_write (EV_A_ &sig_pending); |
1529 | } |
2243 | } |
1530 | |
2244 | |
1531 | static void |
2245 | static void |
… | |
… | |
1537 | |
2251 | |
1538 | ev_feed_signal (signum); |
2252 | ev_feed_signal (signum); |
1539 | } |
2253 | } |
1540 | |
2254 | |
1541 | void noinline |
2255 | void noinline |
1542 | ev_feed_signal_event (EV_P_ int signum) |
2256 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1543 | { |
2257 | { |
1544 | WL w; |
2258 | WL w; |
1545 | |
2259 | |
1546 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2260 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1547 | return; |
2261 | return; |
1548 | |
2262 | |
1549 | --signum; |
2263 | --signum; |
1550 | |
2264 | |
1551 | #if EV_MULTIPLICITY |
2265 | #if EV_MULTIPLICITY |
… | |
… | |
1555 | if (expect_false (signals [signum].loop != EV_A)) |
2269 | if (expect_false (signals [signum].loop != EV_A)) |
1556 | return; |
2270 | return; |
1557 | #endif |
2271 | #endif |
1558 | |
2272 | |
1559 | signals [signum].pending = 0; |
2273 | signals [signum].pending = 0; |
|
|
2274 | ECB_MEMORY_FENCE_RELEASE; |
1560 | |
2275 | |
1561 | for (w = signals [signum].head; w; w = w->next) |
2276 | for (w = signals [signum].head; w; w = w->next) |
1562 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2277 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1563 | } |
2278 | } |
1564 | |
2279 | |
… | |
… | |
1663 | #if EV_USE_SELECT |
2378 | #if EV_USE_SELECT |
1664 | # include "ev_select.c" |
2379 | # include "ev_select.c" |
1665 | #endif |
2380 | #endif |
1666 | |
2381 | |
1667 | int ecb_cold |
2382 | int ecb_cold |
1668 | ev_version_major (void) |
2383 | ev_version_major (void) EV_THROW |
1669 | { |
2384 | { |
1670 | return EV_VERSION_MAJOR; |
2385 | return EV_VERSION_MAJOR; |
1671 | } |
2386 | } |
1672 | |
2387 | |
1673 | int ecb_cold |
2388 | int ecb_cold |
1674 | ev_version_minor (void) |
2389 | ev_version_minor (void) EV_THROW |
1675 | { |
2390 | { |
1676 | return EV_VERSION_MINOR; |
2391 | return EV_VERSION_MINOR; |
1677 | } |
2392 | } |
1678 | |
2393 | |
1679 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2394 | /* return true if we are running with elevated privileges and should ignore env variables */ |
… | |
… | |
1687 | || getgid () != getegid (); |
2402 | || getgid () != getegid (); |
1688 | #endif |
2403 | #endif |
1689 | } |
2404 | } |
1690 | |
2405 | |
1691 | unsigned int ecb_cold |
2406 | unsigned int ecb_cold |
1692 | ev_supported_backends (void) |
2407 | ev_supported_backends (void) EV_THROW |
1693 | { |
2408 | { |
1694 | unsigned int flags = 0; |
2409 | unsigned int flags = 0; |
1695 | |
2410 | |
1696 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2411 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1697 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2412 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1701 | |
2416 | |
1702 | return flags; |
2417 | return flags; |
1703 | } |
2418 | } |
1704 | |
2419 | |
1705 | unsigned int ecb_cold |
2420 | unsigned int ecb_cold |
1706 | ev_recommended_backends (void) |
2421 | ev_recommended_backends (void) EV_THROW |
1707 | { |
2422 | { |
1708 | unsigned int flags = ev_supported_backends (); |
2423 | unsigned int flags = ev_supported_backends (); |
1709 | |
2424 | |
1710 | #ifndef __NetBSD__ |
2425 | #ifndef __NetBSD__ |
1711 | /* kqueue is borked on everything but netbsd apparently */ |
2426 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1723 | |
2438 | |
1724 | return flags; |
2439 | return flags; |
1725 | } |
2440 | } |
1726 | |
2441 | |
1727 | unsigned int ecb_cold |
2442 | unsigned int ecb_cold |
1728 | ev_embeddable_backends (void) |
2443 | ev_embeddable_backends (void) EV_THROW |
1729 | { |
2444 | { |
1730 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2445 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1731 | |
2446 | |
1732 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2447 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1733 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2448 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1735 | |
2450 | |
1736 | return flags; |
2451 | return flags; |
1737 | } |
2452 | } |
1738 | |
2453 | |
1739 | unsigned int |
2454 | unsigned int |
1740 | ev_backend (EV_P) |
2455 | ev_backend (EV_P) EV_THROW |
1741 | { |
2456 | { |
1742 | return backend; |
2457 | return backend; |
1743 | } |
2458 | } |
1744 | |
2459 | |
1745 | #if EV_FEATURE_API |
2460 | #if EV_FEATURE_API |
1746 | unsigned int |
2461 | unsigned int |
1747 | ev_iteration (EV_P) |
2462 | ev_iteration (EV_P) EV_THROW |
1748 | { |
2463 | { |
1749 | return loop_count; |
2464 | return loop_count; |
1750 | } |
2465 | } |
1751 | |
2466 | |
1752 | unsigned int |
2467 | unsigned int |
1753 | ev_depth (EV_P) |
2468 | ev_depth (EV_P) EV_THROW |
1754 | { |
2469 | { |
1755 | return loop_depth; |
2470 | return loop_depth; |
1756 | } |
2471 | } |
1757 | |
2472 | |
1758 | void |
2473 | void |
1759 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2474 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1760 | { |
2475 | { |
1761 | io_blocktime = interval; |
2476 | io_blocktime = interval; |
1762 | } |
2477 | } |
1763 | |
2478 | |
1764 | void |
2479 | void |
1765 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2480 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1766 | { |
2481 | { |
1767 | timeout_blocktime = interval; |
2482 | timeout_blocktime = interval; |
1768 | } |
2483 | } |
1769 | |
2484 | |
1770 | void |
2485 | void |
1771 | ev_set_userdata (EV_P_ void *data) |
2486 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1772 | { |
2487 | { |
1773 | userdata = data; |
2488 | userdata = data; |
1774 | } |
2489 | } |
1775 | |
2490 | |
1776 | void * |
2491 | void * |
1777 | ev_userdata (EV_P) |
2492 | ev_userdata (EV_P) EV_THROW |
1778 | { |
2493 | { |
1779 | return userdata; |
2494 | return userdata; |
1780 | } |
2495 | } |
1781 | |
2496 | |
1782 | void |
2497 | void |
1783 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2498 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1784 | { |
2499 | { |
1785 | invoke_cb = invoke_pending_cb; |
2500 | invoke_cb = invoke_pending_cb; |
1786 | } |
2501 | } |
1787 | |
2502 | |
1788 | void |
2503 | void |
1789 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2504 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1790 | { |
2505 | { |
1791 | release_cb = release; |
2506 | release_cb = release; |
1792 | acquire_cb = acquire; |
2507 | acquire_cb = acquire; |
1793 | } |
2508 | } |
1794 | #endif |
2509 | #endif |
1795 | |
2510 | |
1796 | /* initialise a loop structure, must be zero-initialised */ |
2511 | /* initialise a loop structure, must be zero-initialised */ |
1797 | static void noinline ecb_cold |
2512 | static void noinline ecb_cold |
1798 | loop_init (EV_P_ unsigned int flags) |
2513 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1799 | { |
2514 | { |
1800 | if (!backend) |
2515 | if (!backend) |
1801 | { |
2516 | { |
1802 | origflags = flags; |
2517 | origflags = flags; |
1803 | |
2518 | |
… | |
… | |
1848 | #if EV_ASYNC_ENABLE |
2563 | #if EV_ASYNC_ENABLE |
1849 | async_pending = 0; |
2564 | async_pending = 0; |
1850 | #endif |
2565 | #endif |
1851 | pipe_write_skipped = 0; |
2566 | pipe_write_skipped = 0; |
1852 | pipe_write_wanted = 0; |
2567 | pipe_write_wanted = 0; |
|
|
2568 | evpipe [0] = -1; |
|
|
2569 | evpipe [1] = -1; |
1853 | #if EV_USE_INOTIFY |
2570 | #if EV_USE_INOTIFY |
1854 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2571 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1855 | #endif |
2572 | #endif |
1856 | #if EV_USE_SIGNALFD |
2573 | #if EV_USE_SIGNALFD |
1857 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2574 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
1908 | EV_INVOKE_PENDING; |
2625 | EV_INVOKE_PENDING; |
1909 | } |
2626 | } |
1910 | #endif |
2627 | #endif |
1911 | |
2628 | |
1912 | #if EV_CHILD_ENABLE |
2629 | #if EV_CHILD_ENABLE |
1913 | if (ev_is_active (&childev)) |
2630 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1914 | { |
2631 | { |
1915 | ev_ref (EV_A); /* child watcher */ |
2632 | ev_ref (EV_A); /* child watcher */ |
1916 | ev_signal_stop (EV_A_ &childev); |
2633 | ev_signal_stop (EV_A_ &childev); |
1917 | } |
2634 | } |
1918 | #endif |
2635 | #endif |
… | |
… | |
1920 | if (ev_is_active (&pipe_w)) |
2637 | if (ev_is_active (&pipe_w)) |
1921 | { |
2638 | { |
1922 | /*ev_ref (EV_A);*/ |
2639 | /*ev_ref (EV_A);*/ |
1923 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2640 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1924 | |
2641 | |
1925 | #if EV_USE_EVENTFD |
|
|
1926 | if (evfd >= 0) |
|
|
1927 | close (evfd); |
|
|
1928 | #endif |
|
|
1929 | |
|
|
1930 | if (evpipe [0] >= 0) |
|
|
1931 | { |
|
|
1932 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2642 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1933 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2643 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1934 | } |
|
|
1935 | } |
2644 | } |
1936 | |
2645 | |
1937 | #if EV_USE_SIGNALFD |
2646 | #if EV_USE_SIGNALFD |
1938 | if (ev_is_active (&sigfd_w)) |
2647 | if (ev_is_active (&sigfd_w)) |
1939 | close (sigfd); |
2648 | close (sigfd); |
… | |
… | |
2025 | #endif |
2734 | #endif |
2026 | #if EV_USE_INOTIFY |
2735 | #if EV_USE_INOTIFY |
2027 | infy_fork (EV_A); |
2736 | infy_fork (EV_A); |
2028 | #endif |
2737 | #endif |
2029 | |
2738 | |
|
|
2739 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2030 | if (ev_is_active (&pipe_w)) |
2740 | if (ev_is_active (&pipe_w)) |
2031 | { |
2741 | { |
2032 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2742 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2033 | |
2743 | |
2034 | ev_ref (EV_A); |
2744 | ev_ref (EV_A); |
2035 | ev_io_stop (EV_A_ &pipe_w); |
2745 | ev_io_stop (EV_A_ &pipe_w); |
2036 | |
2746 | |
2037 | #if EV_USE_EVENTFD |
|
|
2038 | if (evfd >= 0) |
|
|
2039 | close (evfd); |
|
|
2040 | #endif |
|
|
2041 | |
|
|
2042 | if (evpipe [0] >= 0) |
2747 | if (evpipe [0] >= 0) |
2043 | { |
|
|
2044 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2748 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2045 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2046 | } |
|
|
2047 | |
2749 | |
2048 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2049 | evpipe_init (EV_A); |
2750 | evpipe_init (EV_A); |
2050 | /* now iterate over everything, in case we missed something */ |
2751 | /* iterate over everything, in case we missed something before */ |
2051 | pipecb (EV_A_ &pipe_w, EV_READ); |
2752 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2052 | #endif |
|
|
2053 | } |
2753 | } |
|
|
2754 | #endif |
2054 | |
2755 | |
2055 | postfork = 0; |
2756 | postfork = 0; |
2056 | } |
2757 | } |
2057 | |
2758 | |
2058 | #if EV_MULTIPLICITY |
2759 | #if EV_MULTIPLICITY |
2059 | |
2760 | |
2060 | struct ev_loop * ecb_cold |
2761 | struct ev_loop * ecb_cold |
2061 | ev_loop_new (unsigned int flags) |
2762 | ev_loop_new (unsigned int flags) EV_THROW |
2062 | { |
2763 | { |
2063 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2764 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2064 | |
2765 | |
2065 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2766 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2066 | loop_init (EV_A_ flags); |
2767 | loop_init (EV_A_ flags); |
… | |
… | |
2110 | } |
2811 | } |
2111 | #endif |
2812 | #endif |
2112 | |
2813 | |
2113 | #if EV_FEATURE_API |
2814 | #if EV_FEATURE_API |
2114 | void ecb_cold |
2815 | void ecb_cold |
2115 | ev_verify (EV_P) |
2816 | ev_verify (EV_P) EV_THROW |
2116 | { |
2817 | { |
2117 | #if EV_VERIFY |
2818 | #if EV_VERIFY |
2118 | int i; |
2819 | int i; |
2119 | WL w; |
2820 | WL w, w2; |
2120 | |
2821 | |
2121 | assert (activecnt >= -1); |
2822 | assert (activecnt >= -1); |
2122 | |
2823 | |
2123 | assert (fdchangemax >= fdchangecnt); |
2824 | assert (fdchangemax >= fdchangecnt); |
2124 | for (i = 0; i < fdchangecnt; ++i) |
2825 | for (i = 0; i < fdchangecnt; ++i) |
2125 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2826 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2126 | |
2827 | |
2127 | assert (anfdmax >= 0); |
2828 | assert (anfdmax >= 0); |
2128 | for (i = 0; i < anfdmax; ++i) |
2829 | for (i = 0; i < anfdmax; ++i) |
|
|
2830 | { |
|
|
2831 | int j = 0; |
|
|
2832 | |
2129 | for (w = anfds [i].head; w; w = w->next) |
2833 | for (w = w2 = anfds [i].head; w; w = w->next) |
2130 | { |
2834 | { |
2131 | verify_watcher (EV_A_ (W)w); |
2835 | verify_watcher (EV_A_ (W)w); |
|
|
2836 | |
|
|
2837 | if (j++ & 1) |
|
|
2838 | { |
|
|
2839 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2840 | w2 = w2->next; |
|
|
2841 | } |
|
|
2842 | |
2132 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2843 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2133 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2844 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2134 | } |
2845 | } |
|
|
2846 | } |
2135 | |
2847 | |
2136 | assert (timermax >= timercnt); |
2848 | assert (timermax >= timercnt); |
2137 | verify_heap (EV_A_ timers, timercnt); |
2849 | verify_heap (EV_A_ timers, timercnt); |
2138 | |
2850 | |
2139 | #if EV_PERIODIC_ENABLE |
2851 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2189 | #if EV_MULTIPLICITY |
2901 | #if EV_MULTIPLICITY |
2190 | struct ev_loop * ecb_cold |
2902 | struct ev_loop * ecb_cold |
2191 | #else |
2903 | #else |
2192 | int |
2904 | int |
2193 | #endif |
2905 | #endif |
2194 | ev_default_loop (unsigned int flags) |
2906 | ev_default_loop (unsigned int flags) EV_THROW |
2195 | { |
2907 | { |
2196 | if (!ev_default_loop_ptr) |
2908 | if (!ev_default_loop_ptr) |
2197 | { |
2909 | { |
2198 | #if EV_MULTIPLICITY |
2910 | #if EV_MULTIPLICITY |
2199 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2911 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2218 | |
2930 | |
2219 | return ev_default_loop_ptr; |
2931 | return ev_default_loop_ptr; |
2220 | } |
2932 | } |
2221 | |
2933 | |
2222 | void |
2934 | void |
2223 | ev_loop_fork (EV_P) |
2935 | ev_loop_fork (EV_P) EV_THROW |
2224 | { |
2936 | { |
2225 | postfork = 1; /* must be in line with ev_default_fork */ |
2937 | postfork = 1; |
2226 | } |
2938 | } |
2227 | |
2939 | |
2228 | /*****************************************************************************/ |
2940 | /*****************************************************************************/ |
2229 | |
2941 | |
2230 | void |
2942 | void |
… | |
… | |
2232 | { |
2944 | { |
2233 | EV_CB_INVOKE ((W)w, revents); |
2945 | EV_CB_INVOKE ((W)w, revents); |
2234 | } |
2946 | } |
2235 | |
2947 | |
2236 | unsigned int |
2948 | unsigned int |
2237 | ev_pending_count (EV_P) |
2949 | ev_pending_count (EV_P) EV_THROW |
2238 | { |
2950 | { |
2239 | int pri; |
2951 | int pri; |
2240 | unsigned int count = 0; |
2952 | unsigned int count = 0; |
2241 | |
2953 | |
2242 | for (pri = NUMPRI; pri--; ) |
2954 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2246 | } |
2958 | } |
2247 | |
2959 | |
2248 | void noinline |
2960 | void noinline |
2249 | ev_invoke_pending (EV_P) |
2961 | ev_invoke_pending (EV_P) |
2250 | { |
2962 | { |
2251 | int pri; |
2963 | pendingpri = NUMPRI; |
2252 | |
2964 | |
2253 | for (pri = NUMPRI; pri--; ) |
2965 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2966 | { |
|
|
2967 | --pendingpri; |
|
|
2968 | |
2254 | while (pendingcnt [pri]) |
2969 | while (pendingcnt [pendingpri]) |
2255 | { |
2970 | { |
2256 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2971 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2257 | |
2972 | |
2258 | p->w->pending = 0; |
2973 | p->w->pending = 0; |
2259 | EV_CB_INVOKE (p->w, p->events); |
2974 | EV_CB_INVOKE (p->w, p->events); |
2260 | EV_FREQUENT_CHECK; |
2975 | EV_FREQUENT_CHECK; |
2261 | } |
2976 | } |
|
|
2977 | } |
2262 | } |
2978 | } |
2263 | |
2979 | |
2264 | #if EV_IDLE_ENABLE |
2980 | #if EV_IDLE_ENABLE |
2265 | /* make idle watchers pending. this handles the "call-idle */ |
2981 | /* make idle watchers pending. this handles the "call-idle */ |
2266 | /* only when higher priorities are idle" logic */ |
2982 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2356 | { |
3072 | { |
2357 | EV_FREQUENT_CHECK; |
3073 | EV_FREQUENT_CHECK; |
2358 | |
3074 | |
2359 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3075 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2360 | { |
3076 | { |
2361 | int feed_count = 0; |
|
|
2362 | |
|
|
2363 | do |
3077 | do |
2364 | { |
3078 | { |
2365 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3079 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2366 | |
3080 | |
2367 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3081 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2501 | |
3215 | |
2502 | mn_now = ev_rt_now; |
3216 | mn_now = ev_rt_now; |
2503 | } |
3217 | } |
2504 | } |
3218 | } |
2505 | |
3219 | |
2506 | void |
3220 | int |
2507 | ev_run (EV_P_ int flags) |
3221 | ev_run (EV_P_ int flags) |
2508 | { |
3222 | { |
2509 | #if EV_FEATURE_API |
3223 | #if EV_FEATURE_API |
2510 | ++loop_depth; |
3224 | ++loop_depth; |
2511 | #endif |
3225 | #endif |
… | |
… | |
2572 | time_update (EV_A_ 1e100); |
3286 | time_update (EV_A_ 1e100); |
2573 | |
3287 | |
2574 | /* from now on, we want a pipe-wake-up */ |
3288 | /* from now on, we want a pipe-wake-up */ |
2575 | pipe_write_wanted = 1; |
3289 | pipe_write_wanted = 1; |
2576 | |
3290 | |
|
|
3291 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3292 | |
2577 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3293 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2578 | { |
3294 | { |
2579 | waittime = MAX_BLOCKTIME; |
3295 | waittime = MAX_BLOCKTIME; |
2580 | |
3296 | |
2581 | if (timercnt) |
3297 | if (timercnt) |
… | |
… | |
2622 | #endif |
3338 | #endif |
2623 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3339 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2624 | backend_poll (EV_A_ waittime); |
3340 | backend_poll (EV_A_ waittime); |
2625 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3341 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2626 | |
3342 | |
2627 | pipe_write_wanted = 0; |
3343 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
2628 | |
3344 | |
|
|
3345 | ECB_MEMORY_FENCE_ACQUIRE; |
2629 | if (pipe_write_skipped) |
3346 | if (pipe_write_skipped) |
2630 | { |
3347 | { |
2631 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3348 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
2632 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3349 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2633 | } |
3350 | } |
… | |
… | |
2666 | loop_done = EVBREAK_CANCEL; |
3383 | loop_done = EVBREAK_CANCEL; |
2667 | |
3384 | |
2668 | #if EV_FEATURE_API |
3385 | #if EV_FEATURE_API |
2669 | --loop_depth; |
3386 | --loop_depth; |
2670 | #endif |
3387 | #endif |
|
|
3388 | |
|
|
3389 | return activecnt; |
2671 | } |
3390 | } |
2672 | |
3391 | |
2673 | void |
3392 | void |
2674 | ev_break (EV_P_ int how) |
3393 | ev_break (EV_P_ int how) EV_THROW |
2675 | { |
3394 | { |
2676 | loop_done = how; |
3395 | loop_done = how; |
2677 | } |
3396 | } |
2678 | |
3397 | |
2679 | void |
3398 | void |
2680 | ev_ref (EV_P) |
3399 | ev_ref (EV_P) EV_THROW |
2681 | { |
3400 | { |
2682 | ++activecnt; |
3401 | ++activecnt; |
2683 | } |
3402 | } |
2684 | |
3403 | |
2685 | void |
3404 | void |
2686 | ev_unref (EV_P) |
3405 | ev_unref (EV_P) EV_THROW |
2687 | { |
3406 | { |
2688 | --activecnt; |
3407 | --activecnt; |
2689 | } |
3408 | } |
2690 | |
3409 | |
2691 | void |
3410 | void |
2692 | ev_now_update (EV_P) |
3411 | ev_now_update (EV_P) EV_THROW |
2693 | { |
3412 | { |
2694 | time_update (EV_A_ 1e100); |
3413 | time_update (EV_A_ 1e100); |
2695 | } |
3414 | } |
2696 | |
3415 | |
2697 | void |
3416 | void |
2698 | ev_suspend (EV_P) |
3417 | ev_suspend (EV_P) EV_THROW |
2699 | { |
3418 | { |
2700 | ev_now_update (EV_A); |
3419 | ev_now_update (EV_A); |
2701 | } |
3420 | } |
2702 | |
3421 | |
2703 | void |
3422 | void |
2704 | ev_resume (EV_P) |
3423 | ev_resume (EV_P) EV_THROW |
2705 | { |
3424 | { |
2706 | ev_tstamp mn_prev = mn_now; |
3425 | ev_tstamp mn_prev = mn_now; |
2707 | |
3426 | |
2708 | ev_now_update (EV_A); |
3427 | ev_now_update (EV_A); |
2709 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3428 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2748 | w->pending = 0; |
3467 | w->pending = 0; |
2749 | } |
3468 | } |
2750 | } |
3469 | } |
2751 | |
3470 | |
2752 | int |
3471 | int |
2753 | ev_clear_pending (EV_P_ void *w) |
3472 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2754 | { |
3473 | { |
2755 | W w_ = (W)w; |
3474 | W w_ = (W)w; |
2756 | int pending = w_->pending; |
3475 | int pending = w_->pending; |
2757 | |
3476 | |
2758 | if (expect_true (pending)) |
3477 | if (expect_true (pending)) |
… | |
… | |
2791 | } |
3510 | } |
2792 | |
3511 | |
2793 | /*****************************************************************************/ |
3512 | /*****************************************************************************/ |
2794 | |
3513 | |
2795 | void noinline |
3514 | void noinline |
2796 | ev_io_start (EV_P_ ev_io *w) |
3515 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2797 | { |
3516 | { |
2798 | int fd = w->fd; |
3517 | int fd = w->fd; |
2799 | |
3518 | |
2800 | if (expect_false (ev_is_active (w))) |
3519 | if (expect_false (ev_is_active (w))) |
2801 | return; |
3520 | return; |
… | |
… | |
2807 | |
3526 | |
2808 | ev_start (EV_A_ (W)w, 1); |
3527 | ev_start (EV_A_ (W)w, 1); |
2809 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3528 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2810 | wlist_add (&anfds[fd].head, (WL)w); |
3529 | wlist_add (&anfds[fd].head, (WL)w); |
2811 | |
3530 | |
|
|
3531 | /* common bug, apparently */ |
|
|
3532 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3533 | |
2812 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3534 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2813 | w->events &= ~EV__IOFDSET; |
3535 | w->events &= ~EV__IOFDSET; |
2814 | |
3536 | |
2815 | EV_FREQUENT_CHECK; |
3537 | EV_FREQUENT_CHECK; |
2816 | } |
3538 | } |
2817 | |
3539 | |
2818 | void noinline |
3540 | void noinline |
2819 | ev_io_stop (EV_P_ ev_io *w) |
3541 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2820 | { |
3542 | { |
2821 | clear_pending (EV_A_ (W)w); |
3543 | clear_pending (EV_A_ (W)w); |
2822 | if (expect_false (!ev_is_active (w))) |
3544 | if (expect_false (!ev_is_active (w))) |
2823 | return; |
3545 | return; |
2824 | |
3546 | |
… | |
… | |
2833 | |
3555 | |
2834 | EV_FREQUENT_CHECK; |
3556 | EV_FREQUENT_CHECK; |
2835 | } |
3557 | } |
2836 | |
3558 | |
2837 | void noinline |
3559 | void noinline |
2838 | ev_timer_start (EV_P_ ev_timer *w) |
3560 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2839 | { |
3561 | { |
2840 | if (expect_false (ev_is_active (w))) |
3562 | if (expect_false (ev_is_active (w))) |
2841 | return; |
3563 | return; |
2842 | |
3564 | |
2843 | ev_at (w) += mn_now; |
3565 | ev_at (w) += mn_now; |
… | |
… | |
2857 | |
3579 | |
2858 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3580 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2859 | } |
3581 | } |
2860 | |
3582 | |
2861 | void noinline |
3583 | void noinline |
2862 | ev_timer_stop (EV_P_ ev_timer *w) |
3584 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2863 | { |
3585 | { |
2864 | clear_pending (EV_A_ (W)w); |
3586 | clear_pending (EV_A_ (W)w); |
2865 | if (expect_false (!ev_is_active (w))) |
3587 | if (expect_false (!ev_is_active (w))) |
2866 | return; |
3588 | return; |
2867 | |
3589 | |
… | |
… | |
2887 | |
3609 | |
2888 | EV_FREQUENT_CHECK; |
3610 | EV_FREQUENT_CHECK; |
2889 | } |
3611 | } |
2890 | |
3612 | |
2891 | void noinline |
3613 | void noinline |
2892 | ev_timer_again (EV_P_ ev_timer *w) |
3614 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2893 | { |
3615 | { |
2894 | EV_FREQUENT_CHECK; |
3616 | EV_FREQUENT_CHECK; |
|
|
3617 | |
|
|
3618 | clear_pending (EV_A_ (W)w); |
2895 | |
3619 | |
2896 | if (ev_is_active (w)) |
3620 | if (ev_is_active (w)) |
2897 | { |
3621 | { |
2898 | if (w->repeat) |
3622 | if (w->repeat) |
2899 | { |
3623 | { |
… | |
… | |
2912 | |
3636 | |
2913 | EV_FREQUENT_CHECK; |
3637 | EV_FREQUENT_CHECK; |
2914 | } |
3638 | } |
2915 | |
3639 | |
2916 | ev_tstamp |
3640 | ev_tstamp |
2917 | ev_timer_remaining (EV_P_ ev_timer *w) |
3641 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2918 | { |
3642 | { |
2919 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3643 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2920 | } |
3644 | } |
2921 | |
3645 | |
2922 | #if EV_PERIODIC_ENABLE |
3646 | #if EV_PERIODIC_ENABLE |
2923 | void noinline |
3647 | void noinline |
2924 | ev_periodic_start (EV_P_ ev_periodic *w) |
3648 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2925 | { |
3649 | { |
2926 | if (expect_false (ev_is_active (w))) |
3650 | if (expect_false (ev_is_active (w))) |
2927 | return; |
3651 | return; |
2928 | |
3652 | |
2929 | if (w->reschedule_cb) |
3653 | if (w->reschedule_cb) |
… | |
… | |
2949 | |
3673 | |
2950 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3674 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2951 | } |
3675 | } |
2952 | |
3676 | |
2953 | void noinline |
3677 | void noinline |
2954 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3678 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2955 | { |
3679 | { |
2956 | clear_pending (EV_A_ (W)w); |
3680 | clear_pending (EV_A_ (W)w); |
2957 | if (expect_false (!ev_is_active (w))) |
3681 | if (expect_false (!ev_is_active (w))) |
2958 | return; |
3682 | return; |
2959 | |
3683 | |
… | |
… | |
2977 | |
3701 | |
2978 | EV_FREQUENT_CHECK; |
3702 | EV_FREQUENT_CHECK; |
2979 | } |
3703 | } |
2980 | |
3704 | |
2981 | void noinline |
3705 | void noinline |
2982 | ev_periodic_again (EV_P_ ev_periodic *w) |
3706 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2983 | { |
3707 | { |
2984 | /* TODO: use adjustheap and recalculation */ |
3708 | /* TODO: use adjustheap and recalculation */ |
2985 | ev_periodic_stop (EV_A_ w); |
3709 | ev_periodic_stop (EV_A_ w); |
2986 | ev_periodic_start (EV_A_ w); |
3710 | ev_periodic_start (EV_A_ w); |
2987 | } |
3711 | } |
… | |
… | |
2992 | #endif |
3716 | #endif |
2993 | |
3717 | |
2994 | #if EV_SIGNAL_ENABLE |
3718 | #if EV_SIGNAL_ENABLE |
2995 | |
3719 | |
2996 | void noinline |
3720 | void noinline |
2997 | ev_signal_start (EV_P_ ev_signal *w) |
3721 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2998 | { |
3722 | { |
2999 | if (expect_false (ev_is_active (w))) |
3723 | if (expect_false (ev_is_active (w))) |
3000 | return; |
3724 | return; |
3001 | |
3725 | |
3002 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3726 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3004 | #if EV_MULTIPLICITY |
3728 | #if EV_MULTIPLICITY |
3005 | assert (("libev: a signal must not be attached to two different loops", |
3729 | assert (("libev: a signal must not be attached to two different loops", |
3006 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3730 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3007 | |
3731 | |
3008 | signals [w->signum - 1].loop = EV_A; |
3732 | signals [w->signum - 1].loop = EV_A; |
|
|
3733 | ECB_MEMORY_FENCE_RELEASE; |
3009 | #endif |
3734 | #endif |
3010 | |
3735 | |
3011 | EV_FREQUENT_CHECK; |
3736 | EV_FREQUENT_CHECK; |
3012 | |
3737 | |
3013 | #if EV_USE_SIGNALFD |
3738 | #if EV_USE_SIGNALFD |
… | |
… | |
3073 | |
3798 | |
3074 | EV_FREQUENT_CHECK; |
3799 | EV_FREQUENT_CHECK; |
3075 | } |
3800 | } |
3076 | |
3801 | |
3077 | void noinline |
3802 | void noinline |
3078 | ev_signal_stop (EV_P_ ev_signal *w) |
3803 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3079 | { |
3804 | { |
3080 | clear_pending (EV_A_ (W)w); |
3805 | clear_pending (EV_A_ (W)w); |
3081 | if (expect_false (!ev_is_active (w))) |
3806 | if (expect_false (!ev_is_active (w))) |
3082 | return; |
3807 | return; |
3083 | |
3808 | |
… | |
… | |
3114 | #endif |
3839 | #endif |
3115 | |
3840 | |
3116 | #if EV_CHILD_ENABLE |
3841 | #if EV_CHILD_ENABLE |
3117 | |
3842 | |
3118 | void |
3843 | void |
3119 | ev_child_start (EV_P_ ev_child *w) |
3844 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3120 | { |
3845 | { |
3121 | #if EV_MULTIPLICITY |
3846 | #if EV_MULTIPLICITY |
3122 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3847 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3123 | #endif |
3848 | #endif |
3124 | if (expect_false (ev_is_active (w))) |
3849 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3131 | |
3856 | |
3132 | EV_FREQUENT_CHECK; |
3857 | EV_FREQUENT_CHECK; |
3133 | } |
3858 | } |
3134 | |
3859 | |
3135 | void |
3860 | void |
3136 | ev_child_stop (EV_P_ ev_child *w) |
3861 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3137 | { |
3862 | { |
3138 | clear_pending (EV_A_ (W)w); |
3863 | clear_pending (EV_A_ (W)w); |
3139 | if (expect_false (!ev_is_active (w))) |
3864 | if (expect_false (!ev_is_active (w))) |
3140 | return; |
3865 | return; |
3141 | |
3866 | |
… | |
… | |
3308 | } |
4033 | } |
3309 | |
4034 | |
3310 | inline_size int |
4035 | inline_size int |
3311 | infy_newfd (void) |
4036 | infy_newfd (void) |
3312 | { |
4037 | { |
3313 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4038 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3314 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4039 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3315 | if (fd >= 0) |
4040 | if (fd >= 0) |
3316 | return fd; |
4041 | return fd; |
3317 | #endif |
4042 | #endif |
3318 | return inotify_init (); |
4043 | return inotify_init (); |
… | |
… | |
3393 | #else |
4118 | #else |
3394 | # define EV_LSTAT(p,b) lstat (p, b) |
4119 | # define EV_LSTAT(p,b) lstat (p, b) |
3395 | #endif |
4120 | #endif |
3396 | |
4121 | |
3397 | void |
4122 | void |
3398 | ev_stat_stat (EV_P_ ev_stat *w) |
4123 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3399 | { |
4124 | { |
3400 | if (lstat (w->path, &w->attr) < 0) |
4125 | if (lstat (w->path, &w->attr) < 0) |
3401 | w->attr.st_nlink = 0; |
4126 | w->attr.st_nlink = 0; |
3402 | else if (!w->attr.st_nlink) |
4127 | else if (!w->attr.st_nlink) |
3403 | w->attr.st_nlink = 1; |
4128 | w->attr.st_nlink = 1; |
… | |
… | |
3442 | ev_feed_event (EV_A_ w, EV_STAT); |
4167 | ev_feed_event (EV_A_ w, EV_STAT); |
3443 | } |
4168 | } |
3444 | } |
4169 | } |
3445 | |
4170 | |
3446 | void |
4171 | void |
3447 | ev_stat_start (EV_P_ ev_stat *w) |
4172 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3448 | { |
4173 | { |
3449 | if (expect_false (ev_is_active (w))) |
4174 | if (expect_false (ev_is_active (w))) |
3450 | return; |
4175 | return; |
3451 | |
4176 | |
3452 | ev_stat_stat (EV_A_ w); |
4177 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3473 | |
4198 | |
3474 | EV_FREQUENT_CHECK; |
4199 | EV_FREQUENT_CHECK; |
3475 | } |
4200 | } |
3476 | |
4201 | |
3477 | void |
4202 | void |
3478 | ev_stat_stop (EV_P_ ev_stat *w) |
4203 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3479 | { |
4204 | { |
3480 | clear_pending (EV_A_ (W)w); |
4205 | clear_pending (EV_A_ (W)w); |
3481 | if (expect_false (!ev_is_active (w))) |
4206 | if (expect_false (!ev_is_active (w))) |
3482 | return; |
4207 | return; |
3483 | |
4208 | |
… | |
… | |
3499 | } |
4224 | } |
3500 | #endif |
4225 | #endif |
3501 | |
4226 | |
3502 | #if EV_IDLE_ENABLE |
4227 | #if EV_IDLE_ENABLE |
3503 | void |
4228 | void |
3504 | ev_idle_start (EV_P_ ev_idle *w) |
4229 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3505 | { |
4230 | { |
3506 | if (expect_false (ev_is_active (w))) |
4231 | if (expect_false (ev_is_active (w))) |
3507 | return; |
4232 | return; |
3508 | |
4233 | |
3509 | pri_adjust (EV_A_ (W)w); |
4234 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3522 | |
4247 | |
3523 | EV_FREQUENT_CHECK; |
4248 | EV_FREQUENT_CHECK; |
3524 | } |
4249 | } |
3525 | |
4250 | |
3526 | void |
4251 | void |
3527 | ev_idle_stop (EV_P_ ev_idle *w) |
4252 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3528 | { |
4253 | { |
3529 | clear_pending (EV_A_ (W)w); |
4254 | clear_pending (EV_A_ (W)w); |
3530 | if (expect_false (!ev_is_active (w))) |
4255 | if (expect_false (!ev_is_active (w))) |
3531 | return; |
4256 | return; |
3532 | |
4257 | |
… | |
… | |
3546 | } |
4271 | } |
3547 | #endif |
4272 | #endif |
3548 | |
4273 | |
3549 | #if EV_PREPARE_ENABLE |
4274 | #if EV_PREPARE_ENABLE |
3550 | void |
4275 | void |
3551 | ev_prepare_start (EV_P_ ev_prepare *w) |
4276 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3552 | { |
4277 | { |
3553 | if (expect_false (ev_is_active (w))) |
4278 | if (expect_false (ev_is_active (w))) |
3554 | return; |
4279 | return; |
3555 | |
4280 | |
3556 | EV_FREQUENT_CHECK; |
4281 | EV_FREQUENT_CHECK; |
… | |
… | |
3561 | |
4286 | |
3562 | EV_FREQUENT_CHECK; |
4287 | EV_FREQUENT_CHECK; |
3563 | } |
4288 | } |
3564 | |
4289 | |
3565 | void |
4290 | void |
3566 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4291 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3567 | { |
4292 | { |
3568 | clear_pending (EV_A_ (W)w); |
4293 | clear_pending (EV_A_ (W)w); |
3569 | if (expect_false (!ev_is_active (w))) |
4294 | if (expect_false (!ev_is_active (w))) |
3570 | return; |
4295 | return; |
3571 | |
4296 | |
… | |
… | |
3584 | } |
4309 | } |
3585 | #endif |
4310 | #endif |
3586 | |
4311 | |
3587 | #if EV_CHECK_ENABLE |
4312 | #if EV_CHECK_ENABLE |
3588 | void |
4313 | void |
3589 | ev_check_start (EV_P_ ev_check *w) |
4314 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3590 | { |
4315 | { |
3591 | if (expect_false (ev_is_active (w))) |
4316 | if (expect_false (ev_is_active (w))) |
3592 | return; |
4317 | return; |
3593 | |
4318 | |
3594 | EV_FREQUENT_CHECK; |
4319 | EV_FREQUENT_CHECK; |
… | |
… | |
3599 | |
4324 | |
3600 | EV_FREQUENT_CHECK; |
4325 | EV_FREQUENT_CHECK; |
3601 | } |
4326 | } |
3602 | |
4327 | |
3603 | void |
4328 | void |
3604 | ev_check_stop (EV_P_ ev_check *w) |
4329 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3605 | { |
4330 | { |
3606 | clear_pending (EV_A_ (W)w); |
4331 | clear_pending (EV_A_ (W)w); |
3607 | if (expect_false (!ev_is_active (w))) |
4332 | if (expect_false (!ev_is_active (w))) |
3608 | return; |
4333 | return; |
3609 | |
4334 | |
… | |
… | |
3622 | } |
4347 | } |
3623 | #endif |
4348 | #endif |
3624 | |
4349 | |
3625 | #if EV_EMBED_ENABLE |
4350 | #if EV_EMBED_ENABLE |
3626 | void noinline |
4351 | void noinline |
3627 | ev_embed_sweep (EV_P_ ev_embed *w) |
4352 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3628 | { |
4353 | { |
3629 | ev_run (w->other, EVRUN_NOWAIT); |
4354 | ev_run (w->other, EVRUN_NOWAIT); |
3630 | } |
4355 | } |
3631 | |
4356 | |
3632 | static void |
4357 | static void |
… | |
… | |
3680 | ev_idle_stop (EV_A_ idle); |
4405 | ev_idle_stop (EV_A_ idle); |
3681 | } |
4406 | } |
3682 | #endif |
4407 | #endif |
3683 | |
4408 | |
3684 | void |
4409 | void |
3685 | ev_embed_start (EV_P_ ev_embed *w) |
4410 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3686 | { |
4411 | { |
3687 | if (expect_false (ev_is_active (w))) |
4412 | if (expect_false (ev_is_active (w))) |
3688 | return; |
4413 | return; |
3689 | |
4414 | |
3690 | { |
4415 | { |
… | |
… | |
3711 | |
4436 | |
3712 | EV_FREQUENT_CHECK; |
4437 | EV_FREQUENT_CHECK; |
3713 | } |
4438 | } |
3714 | |
4439 | |
3715 | void |
4440 | void |
3716 | ev_embed_stop (EV_P_ ev_embed *w) |
4441 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3717 | { |
4442 | { |
3718 | clear_pending (EV_A_ (W)w); |
4443 | clear_pending (EV_A_ (W)w); |
3719 | if (expect_false (!ev_is_active (w))) |
4444 | if (expect_false (!ev_is_active (w))) |
3720 | return; |
4445 | return; |
3721 | |
4446 | |
… | |
… | |
3731 | } |
4456 | } |
3732 | #endif |
4457 | #endif |
3733 | |
4458 | |
3734 | #if EV_FORK_ENABLE |
4459 | #if EV_FORK_ENABLE |
3735 | void |
4460 | void |
3736 | ev_fork_start (EV_P_ ev_fork *w) |
4461 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3737 | { |
4462 | { |
3738 | if (expect_false (ev_is_active (w))) |
4463 | if (expect_false (ev_is_active (w))) |
3739 | return; |
4464 | return; |
3740 | |
4465 | |
3741 | EV_FREQUENT_CHECK; |
4466 | EV_FREQUENT_CHECK; |
… | |
… | |
3746 | |
4471 | |
3747 | EV_FREQUENT_CHECK; |
4472 | EV_FREQUENT_CHECK; |
3748 | } |
4473 | } |
3749 | |
4474 | |
3750 | void |
4475 | void |
3751 | ev_fork_stop (EV_P_ ev_fork *w) |
4476 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3752 | { |
4477 | { |
3753 | clear_pending (EV_A_ (W)w); |
4478 | clear_pending (EV_A_ (W)w); |
3754 | if (expect_false (!ev_is_active (w))) |
4479 | if (expect_false (!ev_is_active (w))) |
3755 | return; |
4480 | return; |
3756 | |
4481 | |
… | |
… | |
3769 | } |
4494 | } |
3770 | #endif |
4495 | #endif |
3771 | |
4496 | |
3772 | #if EV_CLEANUP_ENABLE |
4497 | #if EV_CLEANUP_ENABLE |
3773 | void |
4498 | void |
3774 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4499 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3775 | { |
4500 | { |
3776 | if (expect_false (ev_is_active (w))) |
4501 | if (expect_false (ev_is_active (w))) |
3777 | return; |
4502 | return; |
3778 | |
4503 | |
3779 | EV_FREQUENT_CHECK; |
4504 | EV_FREQUENT_CHECK; |
… | |
… | |
3786 | ev_unref (EV_A); |
4511 | ev_unref (EV_A); |
3787 | EV_FREQUENT_CHECK; |
4512 | EV_FREQUENT_CHECK; |
3788 | } |
4513 | } |
3789 | |
4514 | |
3790 | void |
4515 | void |
3791 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4516 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
3792 | { |
4517 | { |
3793 | clear_pending (EV_A_ (W)w); |
4518 | clear_pending (EV_A_ (W)w); |
3794 | if (expect_false (!ev_is_active (w))) |
4519 | if (expect_false (!ev_is_active (w))) |
3795 | return; |
4520 | return; |
3796 | |
4521 | |
… | |
… | |
3810 | } |
4535 | } |
3811 | #endif |
4536 | #endif |
3812 | |
4537 | |
3813 | #if EV_ASYNC_ENABLE |
4538 | #if EV_ASYNC_ENABLE |
3814 | void |
4539 | void |
3815 | ev_async_start (EV_P_ ev_async *w) |
4540 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3816 | { |
4541 | { |
3817 | if (expect_false (ev_is_active (w))) |
4542 | if (expect_false (ev_is_active (w))) |
3818 | return; |
4543 | return; |
3819 | |
4544 | |
3820 | w->sent = 0; |
4545 | w->sent = 0; |
… | |
… | |
3829 | |
4554 | |
3830 | EV_FREQUENT_CHECK; |
4555 | EV_FREQUENT_CHECK; |
3831 | } |
4556 | } |
3832 | |
4557 | |
3833 | void |
4558 | void |
3834 | ev_async_stop (EV_P_ ev_async *w) |
4559 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3835 | { |
4560 | { |
3836 | clear_pending (EV_A_ (W)w); |
4561 | clear_pending (EV_A_ (W)w); |
3837 | if (expect_false (!ev_is_active (w))) |
4562 | if (expect_false (!ev_is_active (w))) |
3838 | return; |
4563 | return; |
3839 | |
4564 | |
… | |
… | |
3850 | |
4575 | |
3851 | EV_FREQUENT_CHECK; |
4576 | EV_FREQUENT_CHECK; |
3852 | } |
4577 | } |
3853 | |
4578 | |
3854 | void |
4579 | void |
3855 | ev_async_send (EV_P_ ev_async *w) |
4580 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3856 | { |
4581 | { |
3857 | w->sent = 1; |
4582 | w->sent = 1; |
3858 | evpipe_write (EV_A_ &async_pending); |
4583 | evpipe_write (EV_A_ &async_pending); |
3859 | } |
4584 | } |
3860 | #endif |
4585 | #endif |
… | |
… | |
3897 | |
4622 | |
3898 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4623 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3899 | } |
4624 | } |
3900 | |
4625 | |
3901 | void |
4626 | void |
3902 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4627 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3903 | { |
4628 | { |
3904 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4629 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3905 | |
4630 | |
3906 | if (expect_false (!once)) |
4631 | if (expect_false (!once)) |
3907 | { |
4632 | { |
… | |
… | |
3929 | |
4654 | |
3930 | /*****************************************************************************/ |
4655 | /*****************************************************************************/ |
3931 | |
4656 | |
3932 | #if EV_WALK_ENABLE |
4657 | #if EV_WALK_ENABLE |
3933 | void ecb_cold |
4658 | void ecb_cold |
3934 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4659 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3935 | { |
4660 | { |
3936 | int i, j; |
4661 | int i, j; |
3937 | ev_watcher_list *wl, *wn; |
4662 | ev_watcher_list *wl, *wn; |
3938 | |
4663 | |
3939 | if (types & (EV_IO | EV_EMBED)) |
4664 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3982 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4707 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3983 | #endif |
4708 | #endif |
3984 | |
4709 | |
3985 | #if EV_IDLE_ENABLE |
4710 | #if EV_IDLE_ENABLE |
3986 | if (types & EV_IDLE) |
4711 | if (types & EV_IDLE) |
3987 | for (j = NUMPRI; i--; ) |
4712 | for (j = NUMPRI; j--; ) |
3988 | for (i = idlecnt [j]; i--; ) |
4713 | for (i = idlecnt [j]; i--; ) |
3989 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4714 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3990 | #endif |
4715 | #endif |
3991 | |
4716 | |
3992 | #if EV_FORK_ENABLE |
4717 | #if EV_FORK_ENABLE |
… | |
… | |
4045 | |
4770 | |
4046 | #if EV_MULTIPLICITY |
4771 | #if EV_MULTIPLICITY |
4047 | #include "ev_wrap.h" |
4772 | #include "ev_wrap.h" |
4048 | #endif |
4773 | #endif |
4049 | |
4774 | |
4050 | EV_CPP(}) |
|
|
4051 | |
|
|