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) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
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 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
237 | /* to make it compile regardless, just remove the above line, */ |
|
|
238 | /* but consider reporting it, too! :) */ |
|
|
239 | # define EV_NSIG 65 |
|
|
240 | #endif |
247 | #endif |
241 | |
248 | |
242 | #ifndef EV_USE_FLOOR |
249 | #ifndef EV_USE_FLOOR |
243 | # define EV_USE_FLOOR 0 |
250 | # define EV_USE_FLOOR 0 |
244 | #endif |
251 | #endif |
245 | |
252 | |
246 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
247 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
249 | # else |
256 | # else |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
251 | # endif |
258 | # endif |
252 | #endif |
259 | #endif |
253 | |
260 | |
254 | #ifndef EV_USE_MONOTONIC |
261 | #ifndef EV_USE_MONOTONIC |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
257 | # else |
264 | # else |
258 | # define EV_USE_MONOTONIC 0 |
265 | # define EV_USE_MONOTONIC 0 |
259 | # endif |
266 | # endif |
260 | #endif |
267 | #endif |
… | |
… | |
347 | |
354 | |
348 | #ifndef EV_HEAP_CACHE_AT |
355 | #ifndef EV_HEAP_CACHE_AT |
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
350 | #endif |
357 | #endif |
351 | |
358 | |
|
|
359 | #ifdef ANDROID |
|
|
360 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
361 | # undef EV_USE_SELECT |
|
|
362 | # define EV_USE_SELECT 0 |
|
|
363 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
364 | # undef EV_USE_CLOCK_SYSCALL |
|
|
365 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
366 | #endif |
|
|
367 | |
|
|
368 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
369 | #ifdef _AIX |
|
|
370 | /* AIX has a completely broken poll.h header */ |
|
|
371 | # undef EV_USE_POLL |
|
|
372 | # define EV_USE_POLL 0 |
|
|
373 | #endif |
|
|
374 | |
352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
375 | /* 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. */ |
376 | /* which makes programs even slower. might work on other unices, too. */ |
354 | #if EV_USE_CLOCK_SYSCALL |
377 | #if EV_USE_CLOCK_SYSCALL |
355 | # include <syscall.h> |
378 | # include <sys/syscall.h> |
356 | # ifdef SYS_clock_gettime |
379 | # ifdef SYS_clock_gettime |
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
380 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
358 | # undef EV_USE_MONOTONIC |
381 | # undef EV_USE_MONOTONIC |
359 | # define EV_USE_MONOTONIC 1 |
382 | # define EV_USE_MONOTONIC 1 |
360 | # else |
383 | # else |
… | |
… | |
363 | # endif |
386 | # endif |
364 | #endif |
387 | #endif |
365 | |
388 | |
366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
389 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
367 | |
390 | |
368 | #ifdef _AIX |
|
|
369 | /* AIX has a completely broken poll.h header */ |
|
|
370 | # undef EV_USE_POLL |
|
|
371 | # define EV_USE_POLL 0 |
|
|
372 | #endif |
|
|
373 | |
|
|
374 | #ifndef CLOCK_MONOTONIC |
391 | #ifndef CLOCK_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
392 | # undef EV_USE_MONOTONIC |
376 | # define EV_USE_MONOTONIC 0 |
393 | # define EV_USE_MONOTONIC 0 |
377 | #endif |
394 | #endif |
378 | |
395 | |
… | |
… | |
386 | # define EV_USE_INOTIFY 0 |
403 | # define EV_USE_INOTIFY 0 |
387 | #endif |
404 | #endif |
388 | |
405 | |
389 | #if !EV_USE_NANOSLEEP |
406 | #if !EV_USE_NANOSLEEP |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
407 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
391 | # if !defined(_WIN32) && !defined(__hpux) |
408 | # if !defined _WIN32 && !defined __hpux |
392 | # include <sys/select.h> |
409 | # include <sys/select.h> |
393 | # endif |
410 | # endif |
394 | #endif |
411 | #endif |
395 | |
412 | |
396 | #if EV_USE_INOTIFY |
413 | #if EV_USE_INOTIFY |
… | |
… | |
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
416 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
400 | # ifndef IN_DONT_FOLLOW |
417 | # ifndef IN_DONT_FOLLOW |
401 | # undef EV_USE_INOTIFY |
418 | # undef EV_USE_INOTIFY |
402 | # define EV_USE_INOTIFY 0 |
419 | # define EV_USE_INOTIFY 0 |
403 | # endif |
420 | # endif |
404 | #endif |
|
|
405 | |
|
|
406 | #if EV_SELECT_IS_WINSOCKET |
|
|
407 | # include <winsock.h> |
|
|
408 | #endif |
421 | #endif |
409 | |
422 | |
410 | #if EV_USE_EVENTFD |
423 | #if EV_USE_EVENTFD |
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
424 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
412 | # include <stdint.h> |
425 | # include <stdint.h> |
… | |
… | |
469 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
482 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
470 | /* ECB.H BEGIN */ |
483 | /* ECB.H BEGIN */ |
471 | /* |
484 | /* |
472 | * libecb - http://software.schmorp.de/pkg/libecb |
485 | * libecb - http://software.schmorp.de/pkg/libecb |
473 | * |
486 | * |
474 | * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> |
487 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
475 | * Copyright (©) 2011 Emanuele Giaquinta |
488 | * Copyright (©) 2011 Emanuele Giaquinta |
476 | * All rights reserved. |
489 | * All rights reserved. |
477 | * |
490 | * |
478 | * Redistribution and use in source and binary forms, with or without modifica- |
491 | * Redistribution and use in source and binary forms, with or without modifica- |
479 | * tion, are permitted provided that the following conditions are met: |
492 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
498 | */ |
511 | */ |
499 | |
512 | |
500 | #ifndef ECB_H |
513 | #ifndef ECB_H |
501 | #define ECB_H |
514 | #define ECB_H |
502 | |
515 | |
|
|
516 | /* 16 bits major, 16 bits minor */ |
|
|
517 | #define ECB_VERSION 0x00010003 |
|
|
518 | |
503 | #ifdef _WIN32 |
519 | #ifdef _WIN32 |
504 | typedef signed char int8_t; |
520 | typedef signed char int8_t; |
505 | typedef unsigned char uint8_t; |
521 | typedef unsigned char uint8_t; |
506 | typedef signed short int16_t; |
522 | typedef signed short int16_t; |
507 | typedef unsigned short uint16_t; |
523 | typedef unsigned short uint16_t; |
… | |
… | |
512 | typedef unsigned long long uint64_t; |
528 | typedef unsigned long long uint64_t; |
513 | #else /* _MSC_VER || __BORLANDC__ */ |
529 | #else /* _MSC_VER || __BORLANDC__ */ |
514 | typedef signed __int64 int64_t; |
530 | typedef signed __int64 int64_t; |
515 | typedef unsigned __int64 uint64_t; |
531 | typedef unsigned __int64 uint64_t; |
516 | #endif |
532 | #endif |
|
|
533 | #ifdef _WIN64 |
|
|
534 | #define ECB_PTRSIZE 8 |
|
|
535 | typedef uint64_t uintptr_t; |
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|
536 | typedef int64_t intptr_t; |
|
|
537 | #else |
|
|
538 | #define ECB_PTRSIZE 4 |
|
|
539 | typedef uint32_t uintptr_t; |
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|
540 | typedef int32_t intptr_t; |
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|
541 | #endif |
517 | #else |
542 | #else |
518 | #include <inttypes.h> |
543 | #include <inttypes.h> |
|
|
544 | #if UINTMAX_MAX > 0xffffffffU |
|
|
545 | #define ECB_PTRSIZE 8 |
|
|
546 | #else |
|
|
547 | #define ECB_PTRSIZE 4 |
|
|
548 | #endif |
|
|
549 | #endif |
|
|
550 | |
|
|
551 | /* work around x32 idiocy by defining proper macros */ |
|
|
552 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
|
|
553 | #if _ILP32 |
|
|
554 | #define ECB_AMD64_X32 1 |
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|
555 | #else |
|
|
556 | #define ECB_AMD64 1 |
|
|
557 | #endif |
519 | #endif |
558 | #endif |
520 | |
559 | |
521 | /* many compilers define _GNUC_ to some versions but then only implement |
560 | /* many compilers define _GNUC_ to some versions but then only implement |
522 | * what their idiot authors think are the "more important" extensions, |
561 | * what their idiot authors think are the "more important" extensions, |
523 | * causing enormous grief in return for some better fake benchmark numbers. |
562 | * causing enormous grief in return for some better fake benchmark numbers. |
524 | * or so. |
563 | * or so. |
525 | * we try to detect these and simply assume they are not gcc - if they have |
564 | * we try to detect these and simply assume they are not gcc - if they have |
526 | * an issue with that they should have done it right in the first place. |
565 | * an issue with that they should have done it right in the first place. |
527 | */ |
566 | */ |
528 | #ifndef ECB_GCC_VERSION |
567 | #ifndef ECB_GCC_VERSION |
529 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
568 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
530 | #define ECB_GCC_VERSION(major,minor) 0 |
569 | #define ECB_GCC_VERSION(major,minor) 0 |
531 | #else |
570 | #else |
532 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
571 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
533 | #endif |
572 | #endif |
534 | #endif |
573 | #endif |
535 | |
574 | |
|
|
575 | #define ECB_CPP (__cplusplus+0) |
|
|
576 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
577 | |
|
|
578 | #if ECB_CPP |
|
|
579 | #define ECB_C 0 |
|
|
580 | #define ECB_STDC_VERSION 0 |
|
|
581 | #else |
|
|
582 | #define ECB_C 1 |
|
|
583 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
584 | #endif |
|
|
585 | |
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|
586 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
587 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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588 | |
|
|
589 | #if ECB_CPP |
|
|
590 | #define ECB_EXTERN_C extern "C" |
|
|
591 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
592 | #define ECB_EXTERN_C_END } |
|
|
593 | #else |
|
|
594 | #define ECB_EXTERN_C extern |
|
|
595 | #define ECB_EXTERN_C_BEG |
|
|
596 | #define ECB_EXTERN_C_END |
|
|
597 | #endif |
|
|
598 | |
536 | /*****************************************************************************/ |
599 | /*****************************************************************************/ |
537 | |
600 | |
538 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
601 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
539 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
602 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
540 | |
603 | |
541 | #if ECB_NO_THREADS || ECB_NO_SMP |
604 | #if ECB_NO_THREADS |
|
|
605 | #define ECB_NO_SMP 1 |
|
|
606 | #endif |
|
|
607 | |
|
|
608 | #if ECB_NO_SMP |
542 | #define ECB_MEMORY_FENCE do { } while (0) |
609 | #define ECB_MEMORY_FENCE do { } while (0) |
543 | #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0) |
|
|
544 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) |
|
|
545 | #endif |
610 | #endif |
546 | |
611 | |
547 | #ifndef ECB_MEMORY_FENCE |
612 | #ifndef ECB_MEMORY_FENCE |
548 | #if ECB_GCC_VERSION(2,5) |
613 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
549 | #if __x86 |
614 | #if __i386 || __i386__ |
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
551 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
616 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
552 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
617 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
553 | #elif __amd64 |
618 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
619 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
555 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
620 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
556 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
621 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
557 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
622 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
558 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
559 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
624 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
560 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \ |
625 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
561 | || defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
627 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
562 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
628 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
563 | #define ECB_MEMORY_FENCE \ |
629 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
564 | do { \ |
630 | #elif __aarch64__ |
565 | int null = 0; \ |
631 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
566 | __asm__ __volatile__ ("mcr p15,0,%0,c6,c10,5", : "=&r" (null) : : "memory"); \ |
632 | #elif (__sparc || __sparc__) && !__sparcv8 |
567 | while (0) |
633 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
634 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
635 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
636 | #elif defined __s390__ || defined __s390x__ |
|
|
637 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
638 | #elif defined __mips__ |
|
|
639 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
640 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
641 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
642 | #elif defined __alpha__ |
|
|
643 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
644 | #elif defined __hppa__ |
|
|
645 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
646 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
647 | #elif defined __ia64__ |
|
|
648 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
649 | #elif defined __m68k__ |
|
|
650 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
651 | #elif defined __m88k__ |
|
|
652 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
653 | #elif defined __sh__ |
|
|
654 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
568 | #endif |
655 | #endif |
569 | #endif |
656 | #endif |
570 | #endif |
657 | #endif |
571 | |
658 | |
572 | #ifndef ECB_MEMORY_FENCE |
659 | #ifndef ECB_MEMORY_FENCE |
|
|
660 | #if ECB_GCC_VERSION(4,7) |
|
|
661 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
662 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
663 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
664 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
665 | |
|
|
666 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
667 | * without risking compile time errors with other compilers. We *could* |
|
|
668 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
669 | * around this shit time and again. |
|
|
670 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
671 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
672 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
673 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
674 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
675 | */ |
|
|
676 | |
573 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) |
677 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
574 | #define ECB_MEMORY_FENCE __sync_synchronize () |
678 | #define ECB_MEMORY_FENCE __sync_synchronize () |
575 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
679 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
576 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
680 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
681 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
682 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
683 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
684 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
577 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
685 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
578 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
686 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
579 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
687 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
580 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
688 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
581 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
689 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
582 | #elif defined(_WIN32) |
690 | #elif defined _WIN32 |
583 | #include <WinNT.h> |
691 | #include <WinNT.h> |
584 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
692 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
693 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
694 | #include <mbarrier.h> |
|
|
695 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
696 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
697 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
698 | #elif __xlC__ |
|
|
699 | #define ECB_MEMORY_FENCE __sync () |
|
|
700 | #endif |
|
|
701 | #endif |
|
|
702 | |
|
|
703 | #ifndef ECB_MEMORY_FENCE |
|
|
704 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
705 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
706 | /* not just C11 atomics and atomic accesses */ |
|
|
707 | #include <stdatomic.h> |
|
|
708 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
709 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
710 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
711 | /* for most usages, or gcc and clang have a bug */ |
|
|
712 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
713 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
714 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
715 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
716 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
585 | #endif |
717 | #endif |
586 | #endif |
718 | #endif |
587 | |
719 | |
588 | #ifndef ECB_MEMORY_FENCE |
720 | #ifndef ECB_MEMORY_FENCE |
589 | #if !ECB_AVOID_PTHREADS |
721 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
601 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
733 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
602 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
734 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
603 | #endif |
735 | #endif |
604 | #endif |
736 | #endif |
605 | |
737 | |
606 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
738 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
607 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
739 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
608 | #endif |
740 | #endif |
609 | |
741 | |
610 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
742 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
611 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
743 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
612 | #endif |
744 | #endif |
613 | |
745 | |
614 | /*****************************************************************************/ |
746 | /*****************************************************************************/ |
615 | |
|
|
616 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
617 | |
747 | |
618 | #if __cplusplus |
748 | #if __cplusplus |
619 | #define ecb_inline static inline |
749 | #define ecb_inline static inline |
620 | #elif ECB_GCC_VERSION(2,5) |
750 | #elif ECB_GCC_VERSION(2,5) |
621 | #define ecb_inline static __inline__ |
751 | #define ecb_inline static __inline__ |
… | |
… | |
647 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
777 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
648 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
778 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
649 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
779 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
650 | #else |
780 | #else |
651 | #define ecb_attribute(attrlist) |
781 | #define ecb_attribute(attrlist) |
|
|
782 | |
|
|
783 | /* possible C11 impl for integral types |
|
|
784 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
785 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
786 | |
652 | #define ecb_is_constant(expr) 0 |
787 | #define ecb_is_constant(expr) 0 |
653 | #define ecb_expect(expr,value) (expr) |
788 | #define ecb_expect(expr,value) (expr) |
654 | #define ecb_prefetch(addr,rw,locality) |
789 | #define ecb_prefetch(addr,rw,locality) |
655 | #endif |
790 | #endif |
656 | |
791 | |
… | |
… | |
660 | #elif ECB_GCC_VERSION(3,0) |
795 | #elif ECB_GCC_VERSION(3,0) |
661 | #define ecb_decltype(x) __typeof(x) |
796 | #define ecb_decltype(x) __typeof(x) |
662 | #endif |
797 | #endif |
663 | |
798 | |
664 | #define ecb_noinline ecb_attribute ((__noinline__)) |
799 | #define ecb_noinline ecb_attribute ((__noinline__)) |
665 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
666 | #define ecb_unused ecb_attribute ((__unused__)) |
800 | #define ecb_unused ecb_attribute ((__unused__)) |
667 | #define ecb_const ecb_attribute ((__const__)) |
801 | #define ecb_const ecb_attribute ((__const__)) |
668 | #define ecb_pure ecb_attribute ((__pure__)) |
802 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
803 | |
|
|
804 | #if ECB_C11 |
|
|
805 | #define ecb_noreturn _Noreturn |
|
|
806 | #else |
|
|
807 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
808 | #endif |
669 | |
809 | |
670 | #if ECB_GCC_VERSION(4,3) |
810 | #if ECB_GCC_VERSION(4,3) |
671 | #define ecb_artificial ecb_attribute ((__artificial__)) |
811 | #define ecb_artificial ecb_attribute ((__artificial__)) |
672 | #define ecb_hot ecb_attribute ((__hot__)) |
812 | #define ecb_hot ecb_attribute ((__hot__)) |
673 | #define ecb_cold ecb_attribute ((__cold__)) |
813 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
764 | |
904 | |
765 | return r + ecb_ld32 (x); |
905 | return r + ecb_ld32 (x); |
766 | } |
906 | } |
767 | #endif |
907 | #endif |
768 | |
908 | |
|
|
909 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
910 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
911 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
912 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
913 | |
|
|
914 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
915 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
916 | { |
|
|
917 | return ( (x * 0x0802U & 0x22110U) |
|
|
918 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
919 | } |
|
|
920 | |
|
|
921 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
922 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
923 | { |
|
|
924 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
925 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
926 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
927 | x = ( x >> 8 ) | ( x << 8); |
|
|
928 | |
|
|
929 | return x; |
|
|
930 | } |
|
|
931 | |
|
|
932 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
933 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
934 | { |
|
|
935 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
936 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
937 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
938 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
939 | x = ( x >> 16 ) | ( x << 16); |
|
|
940 | |
|
|
941 | return x; |
|
|
942 | } |
|
|
943 | |
769 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
944 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
770 | /* so for this version we are lazy */ |
945 | /* so for this version we are lazy */ |
771 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
946 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
772 | ecb_function_ int |
947 | ecb_function_ int |
773 | ecb_popcount64 (uint64_t x) |
948 | ecb_popcount64 (uint64_t x) |
… | |
… | |
822 | |
997 | |
823 | #if ECB_GCC_VERSION(4,5) |
998 | #if ECB_GCC_VERSION(4,5) |
824 | #define ecb_unreachable() __builtin_unreachable () |
999 | #define ecb_unreachable() __builtin_unreachable () |
825 | #else |
1000 | #else |
826 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1001 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
827 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
1002 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
828 | ecb_function_ void ecb_unreachable (void) { } |
1003 | ecb_inline void ecb_unreachable (void) { } |
829 | #endif |
1004 | #endif |
830 | |
1005 | |
831 | /* try to tell the compiler that some condition is definitely true */ |
1006 | /* try to tell the compiler that some condition is definitely true */ |
832 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1007 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
833 | |
1008 | |
834 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
1009 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
835 | ecb_function_ unsigned char |
1010 | ecb_inline unsigned char |
836 | ecb_byteorder_helper (void) |
1011 | ecb_byteorder_helper (void) |
837 | { |
1012 | { |
838 | const uint32_t u = 0x11223344; |
1013 | /* the union code still generates code under pressure in gcc, */ |
839 | return *(unsigned char *)&u; |
1014 | /* but less than using pointers, and always seems to */ |
|
|
1015 | /* successfully return a constant. */ |
|
|
1016 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1017 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1018 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1019 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
1020 | return 0x44; |
|
|
1021 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
1022 | return 0x44; |
|
|
1023 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1024 | return 0x11; |
|
|
1025 | #else |
|
|
1026 | union |
|
|
1027 | { |
|
|
1028 | uint32_t i; |
|
|
1029 | uint8_t c; |
|
|
1030 | } u = { 0x11223344 }; |
|
|
1031 | return u.c; |
|
|
1032 | #endif |
840 | } |
1033 | } |
841 | |
1034 | |
842 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
1035 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
843 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1036 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
844 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
1037 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
845 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1038 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
846 | |
1039 | |
847 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1040 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
848 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1041 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
849 | #else |
1042 | #else |
850 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1043 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1044 | #endif |
|
|
1045 | |
|
|
1046 | #if __cplusplus |
|
|
1047 | template<typename T> |
|
|
1048 | static inline T ecb_div_rd (T val, T div) |
|
|
1049 | { |
|
|
1050 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1051 | } |
|
|
1052 | template<typename T> |
|
|
1053 | static inline T ecb_div_ru (T val, T div) |
|
|
1054 | { |
|
|
1055 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1056 | } |
|
|
1057 | #else |
|
|
1058 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1059 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
851 | #endif |
1060 | #endif |
852 | |
1061 | |
853 | #if ecb_cplusplus_does_not_suck |
1062 | #if ecb_cplusplus_does_not_suck |
854 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
1063 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
855 | template<typename T, int N> |
1064 | template<typename T, int N> |
… | |
… | |
859 | } |
1068 | } |
860 | #else |
1069 | #else |
861 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1070 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
862 | #endif |
1071 | #endif |
863 | |
1072 | |
|
|
1073 | /*******************************************************************************/ |
|
|
1074 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1075 | |
|
|
1076 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1077 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1078 | #if 0 \ |
|
|
1079 | || __i386 || __i386__ \ |
|
|
1080 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1081 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1082 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1083 | || defined __s390__ || defined __s390x__ \ |
|
|
1084 | || defined __mips__ \ |
|
|
1085 | || defined __alpha__ \ |
|
|
1086 | || defined __hppa__ \ |
|
|
1087 | || defined __ia64__ \ |
|
|
1088 | || defined __m68k__ \ |
|
|
1089 | || defined __m88k__ \ |
|
|
1090 | || defined __sh__ \ |
|
|
1091 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
|
|
1092 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) |
|
|
1093 | #define ECB_STDFP 1 |
|
|
1094 | #include <string.h> /* for memcpy */ |
|
|
1095 | #else |
|
|
1096 | #define ECB_STDFP 0 |
|
|
1097 | #endif |
|
|
1098 | |
|
|
1099 | #ifndef ECB_NO_LIBM |
|
|
1100 | |
|
|
1101 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1102 | |
|
|
1103 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1104 | #ifdef INFINITY |
|
|
1105 | #define ECB_INFINITY INFINITY |
|
|
1106 | #else |
|
|
1107 | #define ECB_INFINITY HUGE_VAL |
|
|
1108 | #endif |
|
|
1109 | |
|
|
1110 | #ifdef NAN |
|
|
1111 | #define ECB_NAN NAN |
|
|
1112 | #else |
|
|
1113 | #define ECB_NAN ECB_INFINITY |
|
|
1114 | #endif |
|
|
1115 | |
|
|
1116 | /* converts an ieee half/binary16 to a float */ |
|
|
1117 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1118 | ecb_function_ float |
|
|
1119 | ecb_binary16_to_float (uint16_t x) |
|
|
1120 | { |
|
|
1121 | int e = (x >> 10) & 0x1f; |
|
|
1122 | int m = x & 0x3ff; |
|
|
1123 | float r; |
|
|
1124 | |
|
|
1125 | if (!e ) r = ldexpf (m , -24); |
|
|
1126 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1127 | else if (m ) r = ECB_NAN; |
|
|
1128 | else r = ECB_INFINITY; |
|
|
1129 | |
|
|
1130 | return x & 0x8000 ? -r : r; |
|
|
1131 | } |
|
|
1132 | |
|
|
1133 | /* convert a float to ieee single/binary32 */ |
|
|
1134 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1135 | ecb_function_ uint32_t |
|
|
1136 | ecb_float_to_binary32 (float x) |
|
|
1137 | { |
|
|
1138 | uint32_t r; |
|
|
1139 | |
|
|
1140 | #if ECB_STDFP |
|
|
1141 | memcpy (&r, &x, 4); |
|
|
1142 | #else |
|
|
1143 | /* slow emulation, works for anything but -0 */ |
|
|
1144 | uint32_t m; |
|
|
1145 | int e; |
|
|
1146 | |
|
|
1147 | if (x == 0e0f ) return 0x00000000U; |
|
|
1148 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1149 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1150 | if (x != x ) return 0x7fbfffffU; |
|
|
1151 | |
|
|
1152 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1153 | |
|
|
1154 | r = m & 0x80000000U; |
|
|
1155 | |
|
|
1156 | if (r) |
|
|
1157 | m = -m; |
|
|
1158 | |
|
|
1159 | if (e <= -126) |
|
|
1160 | { |
|
|
1161 | m &= 0xffffffU; |
|
|
1162 | m >>= (-125 - e); |
|
|
1163 | e = -126; |
|
|
1164 | } |
|
|
1165 | |
|
|
1166 | r |= (e + 126) << 23; |
|
|
1167 | r |= m & 0x7fffffU; |
|
|
1168 | #endif |
|
|
1169 | |
|
|
1170 | return r; |
|
|
1171 | } |
|
|
1172 | |
|
|
1173 | /* converts an ieee single/binary32 to a float */ |
|
|
1174 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1175 | ecb_function_ float |
|
|
1176 | ecb_binary32_to_float (uint32_t x) |
|
|
1177 | { |
|
|
1178 | float r; |
|
|
1179 | |
|
|
1180 | #if ECB_STDFP |
|
|
1181 | memcpy (&r, &x, 4); |
|
|
1182 | #else |
|
|
1183 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1184 | int neg = x >> 31; |
|
|
1185 | int e = (x >> 23) & 0xffU; |
|
|
1186 | |
|
|
1187 | x &= 0x7fffffU; |
|
|
1188 | |
|
|
1189 | if (e) |
|
|
1190 | x |= 0x800000U; |
|
|
1191 | else |
|
|
1192 | e = 1; |
|
|
1193 | |
|
|
1194 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1195 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1196 | |
|
|
1197 | r = neg ? -r : r; |
|
|
1198 | #endif |
|
|
1199 | |
|
|
1200 | return r; |
|
|
1201 | } |
|
|
1202 | |
|
|
1203 | /* convert a double to ieee double/binary64 */ |
|
|
1204 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1205 | ecb_function_ uint64_t |
|
|
1206 | ecb_double_to_binary64 (double x) |
|
|
1207 | { |
|
|
1208 | uint64_t r; |
|
|
1209 | |
|
|
1210 | #if ECB_STDFP |
|
|
1211 | memcpy (&r, &x, 8); |
|
|
1212 | #else |
|
|
1213 | /* slow emulation, works for anything but -0 */ |
|
|
1214 | uint64_t m; |
|
|
1215 | int e; |
|
|
1216 | |
|
|
1217 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1218 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1219 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1220 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1221 | |
|
|
1222 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1223 | |
|
|
1224 | r = m & 0x8000000000000000;; |
|
|
1225 | |
|
|
1226 | if (r) |
|
|
1227 | m = -m; |
|
|
1228 | |
|
|
1229 | if (e <= -1022) |
|
|
1230 | { |
|
|
1231 | m &= 0x1fffffffffffffU; |
|
|
1232 | m >>= (-1021 - e); |
|
|
1233 | e = -1022; |
|
|
1234 | } |
|
|
1235 | |
|
|
1236 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1237 | r |= m & 0xfffffffffffffU; |
|
|
1238 | #endif |
|
|
1239 | |
|
|
1240 | return r; |
|
|
1241 | } |
|
|
1242 | |
|
|
1243 | /* converts an ieee double/binary64 to a double */ |
|
|
1244 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1245 | ecb_function_ double |
|
|
1246 | ecb_binary64_to_double (uint64_t x) |
|
|
1247 | { |
|
|
1248 | double r; |
|
|
1249 | |
|
|
1250 | #if ECB_STDFP |
|
|
1251 | memcpy (&r, &x, 8); |
|
|
1252 | #else |
|
|
1253 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1254 | int neg = x >> 63; |
|
|
1255 | int e = (x >> 52) & 0x7ffU; |
|
|
1256 | |
|
|
1257 | x &= 0xfffffffffffffU; |
|
|
1258 | |
|
|
1259 | if (e) |
|
|
1260 | x |= 0x10000000000000U; |
|
|
1261 | else |
|
|
1262 | e = 1; |
|
|
1263 | |
|
|
1264 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1265 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1266 | |
|
|
1267 | r = neg ? -r : r; |
|
|
1268 | #endif |
|
|
1269 | |
|
|
1270 | return r; |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | #endif |
|
|
1274 | |
864 | #endif |
1275 | #endif |
865 | |
1276 | |
866 | /* ECB.H END */ |
1277 | /* ECB.H END */ |
867 | |
1278 | |
868 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1279 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1280 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1281 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1282 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1283 | * libev, in which cases the memory fences become nops. |
|
|
1284 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1285 | * which will then provide the memory fences. |
|
|
1286 | */ |
|
|
1287 | # error "memory fences not defined for your architecture, please report" |
|
|
1288 | #endif |
|
|
1289 | |
869 | # undef ECB_MEMORY_FENCE |
1290 | #ifndef ECB_MEMORY_FENCE |
870 | # undef ECB_MEMORY_FENCE_ACQUIRE |
1291 | # define ECB_MEMORY_FENCE do { } while (0) |
871 | # undef ECB_MEMORY_FENCE_RELEASE |
1292 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1293 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
872 | #endif |
1294 | #endif |
873 | |
1295 | |
874 | #define expect_false(cond) ecb_expect_false (cond) |
1296 | #define expect_false(cond) ecb_expect_false (cond) |
875 | #define expect_true(cond) ecb_expect_true (cond) |
1297 | #define expect_true(cond) ecb_expect_true (cond) |
876 | #define noinline ecb_noinline |
1298 | #define noinline ecb_noinline |
… | |
… | |
1023 | { |
1445 | { |
1024 | write (STDERR_FILENO, msg, strlen (msg)); |
1446 | write (STDERR_FILENO, msg, strlen (msg)); |
1025 | } |
1447 | } |
1026 | #endif |
1448 | #endif |
1027 | |
1449 | |
1028 | static void (*syserr_cb)(const char *msg); |
1450 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1029 | |
1451 | |
1030 | void ecb_cold |
1452 | void ecb_cold |
1031 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1453 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1032 | { |
1454 | { |
1033 | syserr_cb = cb; |
1455 | syserr_cb = cb; |
1034 | } |
1456 | } |
1035 | |
1457 | |
1036 | static void noinline ecb_cold |
1458 | static void noinline ecb_cold |
… | |
… | |
1054 | abort (); |
1476 | abort (); |
1055 | } |
1477 | } |
1056 | } |
1478 | } |
1057 | |
1479 | |
1058 | static void * |
1480 | static void * |
1059 | ev_realloc_emul (void *ptr, long size) |
1481 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1060 | { |
1482 | { |
1061 | #if __GLIBC__ |
|
|
1062 | return realloc (ptr, size); |
|
|
1063 | #else |
|
|
1064 | /* some systems, notably openbsd and darwin, fail to properly |
1483 | /* some systems, notably openbsd and darwin, fail to properly |
1065 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1484 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1066 | * the single unix specification, so work around them here. |
1485 | * the single unix specification, so work around them here. |
|
|
1486 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1487 | * despite documenting it otherwise. |
1067 | */ |
1488 | */ |
1068 | |
1489 | |
1069 | if (size) |
1490 | if (size) |
1070 | return realloc (ptr, size); |
1491 | return realloc (ptr, size); |
1071 | |
1492 | |
1072 | free (ptr); |
1493 | free (ptr); |
1073 | return 0; |
1494 | return 0; |
1074 | #endif |
|
|
1075 | } |
1495 | } |
1076 | |
1496 | |
1077 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1497 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1078 | |
1498 | |
1079 | void ecb_cold |
1499 | void ecb_cold |
1080 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1500 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1081 | { |
1501 | { |
1082 | alloc = cb; |
1502 | alloc = cb; |
1083 | } |
1503 | } |
1084 | |
1504 | |
1085 | inline_speed void * |
1505 | inline_speed void * |
… | |
… | |
1173 | #undef VAR |
1593 | #undef VAR |
1174 | }; |
1594 | }; |
1175 | #include "ev_wrap.h" |
1595 | #include "ev_wrap.h" |
1176 | |
1596 | |
1177 | static struct ev_loop default_loop_struct; |
1597 | static struct ev_loop default_loop_struct; |
1178 | struct ev_loop *ev_default_loop_ptr; |
1598 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1179 | |
1599 | |
1180 | #else |
1600 | #else |
1181 | |
1601 | |
1182 | ev_tstamp ev_rt_now; |
1602 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
1183 | #define VAR(name,decl) static decl; |
1603 | #define VAR(name,decl) static decl; |
1184 | #include "ev_vars.h" |
1604 | #include "ev_vars.h" |
1185 | #undef VAR |
1605 | #undef VAR |
1186 | |
1606 | |
1187 | static int ev_default_loop_ptr; |
1607 | static int ev_default_loop_ptr; |
… | |
… | |
1202 | |
1622 | |
1203 | /*****************************************************************************/ |
1623 | /*****************************************************************************/ |
1204 | |
1624 | |
1205 | #ifndef EV_HAVE_EV_TIME |
1625 | #ifndef EV_HAVE_EV_TIME |
1206 | ev_tstamp |
1626 | ev_tstamp |
1207 | ev_time (void) |
1627 | ev_time (void) EV_THROW |
1208 | { |
1628 | { |
1209 | #if EV_USE_REALTIME |
1629 | #if EV_USE_REALTIME |
1210 | if (expect_true (have_realtime)) |
1630 | if (expect_true (have_realtime)) |
1211 | { |
1631 | { |
1212 | struct timespec ts; |
1632 | struct timespec ts; |
… | |
… | |
1236 | return ev_time (); |
1656 | return ev_time (); |
1237 | } |
1657 | } |
1238 | |
1658 | |
1239 | #if EV_MULTIPLICITY |
1659 | #if EV_MULTIPLICITY |
1240 | ev_tstamp |
1660 | ev_tstamp |
1241 | ev_now (EV_P) |
1661 | ev_now (EV_P) EV_THROW |
1242 | { |
1662 | { |
1243 | return ev_rt_now; |
1663 | return ev_rt_now; |
1244 | } |
1664 | } |
1245 | #endif |
1665 | #endif |
1246 | |
1666 | |
1247 | void |
1667 | void |
1248 | ev_sleep (ev_tstamp delay) |
1668 | ev_sleep (ev_tstamp delay) EV_THROW |
1249 | { |
1669 | { |
1250 | if (delay > 0.) |
1670 | if (delay > 0.) |
1251 | { |
1671 | { |
1252 | #if EV_USE_NANOSLEEP |
1672 | #if EV_USE_NANOSLEEP |
1253 | struct timespec ts; |
1673 | struct timespec ts; |
1254 | |
1674 | |
1255 | EV_TS_SET (ts, delay); |
1675 | EV_TS_SET (ts, delay); |
1256 | nanosleep (&ts, 0); |
1676 | nanosleep (&ts, 0); |
1257 | #elif defined(_WIN32) |
1677 | #elif defined _WIN32 |
1258 | Sleep ((unsigned long)(delay * 1e3)); |
1678 | Sleep ((unsigned long)(delay * 1e3)); |
1259 | #else |
1679 | #else |
1260 | struct timeval tv; |
1680 | struct timeval tv; |
1261 | |
1681 | |
1262 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1682 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1281 | |
1701 | |
1282 | do |
1702 | do |
1283 | ncur <<= 1; |
1703 | ncur <<= 1; |
1284 | while (cnt > ncur); |
1704 | while (cnt > ncur); |
1285 | |
1705 | |
1286 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1706 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
1287 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1707 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1288 | { |
1708 | { |
1289 | ncur *= elem; |
1709 | ncur *= elem; |
1290 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1710 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1291 | ncur = ncur - sizeof (void *) * 4; |
1711 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
1334 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1754 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1335 | { |
1755 | { |
1336 | } |
1756 | } |
1337 | |
1757 | |
1338 | void noinline |
1758 | void noinline |
1339 | ev_feed_event (EV_P_ void *w, int revents) |
1759 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1340 | { |
1760 | { |
1341 | W w_ = (W)w; |
1761 | W w_ = (W)w; |
1342 | int pri = ABSPRI (w_); |
1762 | int pri = ABSPRI (w_); |
1343 | |
1763 | |
1344 | if (expect_false (w_->pending)) |
1764 | if (expect_false (w_->pending)) |
… | |
… | |
1348 | w_->pending = ++pendingcnt [pri]; |
1768 | w_->pending = ++pendingcnt [pri]; |
1349 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1769 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1350 | pendings [pri][w_->pending - 1].w = w_; |
1770 | pendings [pri][w_->pending - 1].w = w_; |
1351 | pendings [pri][w_->pending - 1].events = revents; |
1771 | pendings [pri][w_->pending - 1].events = revents; |
1352 | } |
1772 | } |
|
|
1773 | |
|
|
1774 | pendingpri = NUMPRI - 1; |
1353 | } |
1775 | } |
1354 | |
1776 | |
1355 | inline_speed void |
1777 | inline_speed void |
1356 | feed_reverse (EV_P_ W w) |
1778 | feed_reverse (EV_P_ W w) |
1357 | { |
1779 | { |
… | |
… | |
1403 | if (expect_true (!anfd->reify)) |
1825 | if (expect_true (!anfd->reify)) |
1404 | fd_event_nocheck (EV_A_ fd, revents); |
1826 | fd_event_nocheck (EV_A_ fd, revents); |
1405 | } |
1827 | } |
1406 | |
1828 | |
1407 | void |
1829 | void |
1408 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1830 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1409 | { |
1831 | { |
1410 | if (fd >= 0 && fd < anfdmax) |
1832 | if (fd >= 0 && fd < anfdmax) |
1411 | fd_event_nocheck (EV_A_ fd, revents); |
1833 | fd_event_nocheck (EV_A_ fd, revents); |
1412 | } |
1834 | } |
1413 | |
1835 | |
… | |
… | |
1732 | static void noinline ecb_cold |
2154 | static void noinline ecb_cold |
1733 | evpipe_init (EV_P) |
2155 | evpipe_init (EV_P) |
1734 | { |
2156 | { |
1735 | if (!ev_is_active (&pipe_w)) |
2157 | if (!ev_is_active (&pipe_w)) |
1736 | { |
2158 | { |
|
|
2159 | int fds [2]; |
|
|
2160 | |
1737 | # if EV_USE_EVENTFD |
2161 | # if EV_USE_EVENTFD |
|
|
2162 | fds [0] = -1; |
1738 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2163 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1739 | if (evfd < 0 && errno == EINVAL) |
2164 | if (fds [1] < 0 && errno == EINVAL) |
1740 | evfd = eventfd (0, 0); |
2165 | fds [1] = eventfd (0, 0); |
1741 | |
2166 | |
1742 | if (evfd >= 0) |
2167 | if (fds [1] < 0) |
|
|
2168 | # endif |
1743 | { |
2169 | { |
|
|
2170 | while (pipe (fds)) |
|
|
2171 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2172 | |
|
|
2173 | fd_intern (fds [0]); |
|
|
2174 | } |
|
|
2175 | |
1744 | evpipe [0] = -1; |
2176 | evpipe [0] = fds [0]; |
1745 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2177 | |
1746 | ev_io_set (&pipe_w, evfd, EV_READ); |
2178 | if (evpipe [1] < 0) |
|
|
2179 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2180 | else |
|
|
2181 | { |
|
|
2182 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2183 | /* so that evpipe_write can always rely on its value. */ |
|
|
2184 | /* this branch does not do anything sensible on windows, */ |
|
|
2185 | /* so must not be executed on windows */ |
|
|
2186 | |
|
|
2187 | dup2 (fds [1], evpipe [1]); |
|
|
2188 | close (fds [1]); |
|
|
2189 | } |
|
|
2190 | |
|
|
2191 | fd_intern (evpipe [1]); |
|
|
2192 | |
|
|
2193 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2194 | ev_io_start (EV_A_ &pipe_w); |
|
|
2195 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2196 | } |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | inline_speed void |
|
|
2200 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2201 | { |
|
|
2202 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2203 | |
|
|
2204 | if (expect_true (*flag)) |
|
|
2205 | return; |
|
|
2206 | |
|
|
2207 | *flag = 1; |
|
|
2208 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2209 | |
|
|
2210 | pipe_write_skipped = 1; |
|
|
2211 | |
|
|
2212 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2213 | |
|
|
2214 | if (pipe_write_wanted) |
|
|
2215 | { |
|
|
2216 | int old_errno; |
|
|
2217 | |
|
|
2218 | pipe_write_skipped = 0; |
|
|
2219 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2220 | |
|
|
2221 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2222 | |
|
|
2223 | #if EV_USE_EVENTFD |
|
|
2224 | if (evpipe [0] < 0) |
|
|
2225 | { |
|
|
2226 | uint64_t counter = 1; |
|
|
2227 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1747 | } |
2228 | } |
1748 | else |
2229 | else |
1749 | # endif |
2230 | #endif |
1750 | { |
2231 | { |
1751 | while (pipe (evpipe)) |
2232 | #ifdef _WIN32 |
1752 | ev_syserr ("(libev) error creating signal/async pipe"); |
2233 | WSABUF buf; |
1753 | |
2234 | DWORD sent; |
1754 | fd_intern (evpipe [0]); |
2235 | buf.buf = &buf; |
1755 | fd_intern (evpipe [1]); |
2236 | buf.len = 1; |
1756 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2237 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1757 | } |
2238 | #else |
1758 | |
|
|
1759 | ev_io_start (EV_A_ &pipe_w); |
|
|
1760 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1761 | } |
|
|
1762 | } |
|
|
1763 | |
|
|
1764 | inline_speed void |
|
|
1765 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1766 | { |
|
|
1767 | if (expect_true (*flag)) |
|
|
1768 | return; |
|
|
1769 | |
|
|
1770 | *flag = 1; |
|
|
1771 | |
|
|
1772 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1773 | |
|
|
1774 | pipe_write_skipped = 1; |
|
|
1775 | |
|
|
1776 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1777 | |
|
|
1778 | if (pipe_write_wanted) |
|
|
1779 | { |
|
|
1780 | int old_errno; |
|
|
1781 | |
|
|
1782 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1783 | |
|
|
1784 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1785 | |
|
|
1786 | #if EV_USE_EVENTFD |
|
|
1787 | if (evfd >= 0) |
|
|
1788 | { |
|
|
1789 | uint64_t counter = 1; |
|
|
1790 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1791 | } |
|
|
1792 | else |
|
|
1793 | #endif |
|
|
1794 | { |
|
|
1795 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1796 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1797 | /* so when you think this write should be a send instead, please find out */ |
|
|
1798 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1799 | /* tell me. thank you. */ |
|
|
1800 | write (evpipe [1], &(evpipe [1]), 1); |
2239 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2240 | #endif |
1801 | } |
2241 | } |
1802 | |
2242 | |
1803 | errno = old_errno; |
2243 | errno = old_errno; |
1804 | } |
2244 | } |
1805 | } |
2245 | } |
… | |
… | |
1812 | int i; |
2252 | int i; |
1813 | |
2253 | |
1814 | if (revents & EV_READ) |
2254 | if (revents & EV_READ) |
1815 | { |
2255 | { |
1816 | #if EV_USE_EVENTFD |
2256 | #if EV_USE_EVENTFD |
1817 | if (evfd >= 0) |
2257 | if (evpipe [0] < 0) |
1818 | { |
2258 | { |
1819 | uint64_t counter; |
2259 | uint64_t counter; |
1820 | read (evfd, &counter, sizeof (uint64_t)); |
2260 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1821 | } |
2261 | } |
1822 | else |
2262 | else |
1823 | #endif |
2263 | #endif |
1824 | { |
2264 | { |
1825 | char dummy; |
2265 | char dummy[4]; |
1826 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2266 | #ifdef _WIN32 |
|
|
2267 | WSABUF buf; |
|
|
2268 | DWORD recvd; |
|
|
2269 | DWORD flags = 0; |
|
|
2270 | buf.buf = dummy; |
|
|
2271 | buf.len = sizeof (dummy); |
|
|
2272 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2273 | #else |
1827 | read (evpipe [0], &dummy, 1); |
2274 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2275 | #endif |
1828 | } |
2276 | } |
1829 | } |
2277 | } |
1830 | |
2278 | |
1831 | pipe_write_skipped = 0; |
2279 | pipe_write_skipped = 0; |
|
|
2280 | |
|
|
2281 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1832 | |
2282 | |
1833 | #if EV_SIGNAL_ENABLE |
2283 | #if EV_SIGNAL_ENABLE |
1834 | if (sig_pending) |
2284 | if (sig_pending) |
1835 | { |
2285 | { |
1836 | sig_pending = 0; |
2286 | sig_pending = 0; |
|
|
2287 | |
|
|
2288 | ECB_MEMORY_FENCE; |
1837 | |
2289 | |
1838 | for (i = EV_NSIG - 1; i--; ) |
2290 | for (i = EV_NSIG - 1; i--; ) |
1839 | if (expect_false (signals [i].pending)) |
2291 | if (expect_false (signals [i].pending)) |
1840 | ev_feed_signal_event (EV_A_ i + 1); |
2292 | ev_feed_signal_event (EV_A_ i + 1); |
1841 | } |
2293 | } |
… | |
… | |
1843 | |
2295 | |
1844 | #if EV_ASYNC_ENABLE |
2296 | #if EV_ASYNC_ENABLE |
1845 | if (async_pending) |
2297 | if (async_pending) |
1846 | { |
2298 | { |
1847 | async_pending = 0; |
2299 | async_pending = 0; |
|
|
2300 | |
|
|
2301 | ECB_MEMORY_FENCE; |
1848 | |
2302 | |
1849 | for (i = asynccnt; i--; ) |
2303 | for (i = asynccnt; i--; ) |
1850 | if (asyncs [i]->sent) |
2304 | if (asyncs [i]->sent) |
1851 | { |
2305 | { |
1852 | asyncs [i]->sent = 0; |
2306 | asyncs [i]->sent = 0; |
|
|
2307 | ECB_MEMORY_FENCE_RELEASE; |
1853 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2308 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1854 | } |
2309 | } |
1855 | } |
2310 | } |
1856 | #endif |
2311 | #endif |
1857 | } |
2312 | } |
1858 | |
2313 | |
1859 | /*****************************************************************************/ |
2314 | /*****************************************************************************/ |
1860 | |
2315 | |
1861 | void |
2316 | void |
1862 | ev_feed_signal (int signum) |
2317 | ev_feed_signal (int signum) EV_THROW |
1863 | { |
2318 | { |
1864 | #if EV_MULTIPLICITY |
2319 | #if EV_MULTIPLICITY |
|
|
2320 | EV_P; |
|
|
2321 | ECB_MEMORY_FENCE_ACQUIRE; |
1865 | EV_P = signals [signum - 1].loop; |
2322 | EV_A = signals [signum - 1].loop; |
1866 | |
2323 | |
1867 | if (!EV_A) |
2324 | if (!EV_A) |
1868 | return; |
2325 | return; |
1869 | #endif |
2326 | #endif |
1870 | |
2327 | |
1871 | if (!ev_active (&pipe_w)) |
|
|
1872 | return; |
|
|
1873 | |
|
|
1874 | signals [signum - 1].pending = 1; |
2328 | signals [signum - 1].pending = 1; |
1875 | evpipe_write (EV_A_ &sig_pending); |
2329 | evpipe_write (EV_A_ &sig_pending); |
1876 | } |
2330 | } |
1877 | |
2331 | |
1878 | static void |
2332 | static void |
… | |
… | |
1884 | |
2338 | |
1885 | ev_feed_signal (signum); |
2339 | ev_feed_signal (signum); |
1886 | } |
2340 | } |
1887 | |
2341 | |
1888 | void noinline |
2342 | void noinline |
1889 | ev_feed_signal_event (EV_P_ int signum) |
2343 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1890 | { |
2344 | { |
1891 | WL w; |
2345 | WL w; |
1892 | |
2346 | |
1893 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2347 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1894 | return; |
2348 | return; |
1895 | |
2349 | |
1896 | --signum; |
2350 | --signum; |
1897 | |
2351 | |
1898 | #if EV_MULTIPLICITY |
2352 | #if EV_MULTIPLICITY |
… | |
… | |
1902 | if (expect_false (signals [signum].loop != EV_A)) |
2356 | if (expect_false (signals [signum].loop != EV_A)) |
1903 | return; |
2357 | return; |
1904 | #endif |
2358 | #endif |
1905 | |
2359 | |
1906 | signals [signum].pending = 0; |
2360 | signals [signum].pending = 0; |
|
|
2361 | ECB_MEMORY_FENCE_RELEASE; |
1907 | |
2362 | |
1908 | for (w = signals [signum].head; w; w = w->next) |
2363 | for (w = signals [signum].head; w; w = w->next) |
1909 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2364 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1910 | } |
2365 | } |
1911 | |
2366 | |
… | |
… | |
2010 | #if EV_USE_SELECT |
2465 | #if EV_USE_SELECT |
2011 | # include "ev_select.c" |
2466 | # include "ev_select.c" |
2012 | #endif |
2467 | #endif |
2013 | |
2468 | |
2014 | int ecb_cold |
2469 | int ecb_cold |
2015 | ev_version_major (void) |
2470 | ev_version_major (void) EV_THROW |
2016 | { |
2471 | { |
2017 | return EV_VERSION_MAJOR; |
2472 | return EV_VERSION_MAJOR; |
2018 | } |
2473 | } |
2019 | |
2474 | |
2020 | int ecb_cold |
2475 | int ecb_cold |
2021 | ev_version_minor (void) |
2476 | ev_version_minor (void) EV_THROW |
2022 | { |
2477 | { |
2023 | return EV_VERSION_MINOR; |
2478 | return EV_VERSION_MINOR; |
2024 | } |
2479 | } |
2025 | |
2480 | |
2026 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2481 | /* return true if we are running with elevated privileges and should ignore env variables */ |
… | |
… | |
2034 | || getgid () != getegid (); |
2489 | || getgid () != getegid (); |
2035 | #endif |
2490 | #endif |
2036 | } |
2491 | } |
2037 | |
2492 | |
2038 | unsigned int ecb_cold |
2493 | unsigned int ecb_cold |
2039 | ev_supported_backends (void) |
2494 | ev_supported_backends (void) EV_THROW |
2040 | { |
2495 | { |
2041 | unsigned int flags = 0; |
2496 | unsigned int flags = 0; |
2042 | |
2497 | |
2043 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2498 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2044 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2499 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
2048 | |
2503 | |
2049 | return flags; |
2504 | return flags; |
2050 | } |
2505 | } |
2051 | |
2506 | |
2052 | unsigned int ecb_cold |
2507 | unsigned int ecb_cold |
2053 | ev_recommended_backends (void) |
2508 | ev_recommended_backends (void) EV_THROW |
2054 | { |
2509 | { |
2055 | unsigned int flags = ev_supported_backends (); |
2510 | unsigned int flags = ev_supported_backends (); |
2056 | |
2511 | |
2057 | #ifndef __NetBSD__ |
2512 | #ifndef __NetBSD__ |
2058 | /* kqueue is borked on everything but netbsd apparently */ |
2513 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2070 | |
2525 | |
2071 | return flags; |
2526 | return flags; |
2072 | } |
2527 | } |
2073 | |
2528 | |
2074 | unsigned int ecb_cold |
2529 | unsigned int ecb_cold |
2075 | ev_embeddable_backends (void) |
2530 | ev_embeddable_backends (void) EV_THROW |
2076 | { |
2531 | { |
2077 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2532 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2078 | |
2533 | |
2079 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2534 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2080 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2535 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
2082 | |
2537 | |
2083 | return flags; |
2538 | return flags; |
2084 | } |
2539 | } |
2085 | |
2540 | |
2086 | unsigned int |
2541 | unsigned int |
2087 | ev_backend (EV_P) |
2542 | ev_backend (EV_P) EV_THROW |
2088 | { |
2543 | { |
2089 | return backend; |
2544 | return backend; |
2090 | } |
2545 | } |
2091 | |
2546 | |
2092 | #if EV_FEATURE_API |
2547 | #if EV_FEATURE_API |
2093 | unsigned int |
2548 | unsigned int |
2094 | ev_iteration (EV_P) |
2549 | ev_iteration (EV_P) EV_THROW |
2095 | { |
2550 | { |
2096 | return loop_count; |
2551 | return loop_count; |
2097 | } |
2552 | } |
2098 | |
2553 | |
2099 | unsigned int |
2554 | unsigned int |
2100 | ev_depth (EV_P) |
2555 | ev_depth (EV_P) EV_THROW |
2101 | { |
2556 | { |
2102 | return loop_depth; |
2557 | return loop_depth; |
2103 | } |
2558 | } |
2104 | |
2559 | |
2105 | void |
2560 | void |
2106 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2561 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2107 | { |
2562 | { |
2108 | io_blocktime = interval; |
2563 | io_blocktime = interval; |
2109 | } |
2564 | } |
2110 | |
2565 | |
2111 | void |
2566 | void |
2112 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2567 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2113 | { |
2568 | { |
2114 | timeout_blocktime = interval; |
2569 | timeout_blocktime = interval; |
2115 | } |
2570 | } |
2116 | |
2571 | |
2117 | void |
2572 | void |
2118 | ev_set_userdata (EV_P_ void *data) |
2573 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2119 | { |
2574 | { |
2120 | userdata = data; |
2575 | userdata = data; |
2121 | } |
2576 | } |
2122 | |
2577 | |
2123 | void * |
2578 | void * |
2124 | ev_userdata (EV_P) |
2579 | ev_userdata (EV_P) EV_THROW |
2125 | { |
2580 | { |
2126 | return userdata; |
2581 | return userdata; |
2127 | } |
2582 | } |
2128 | |
2583 | |
2129 | void |
2584 | void |
2130 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2585 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2131 | { |
2586 | { |
2132 | invoke_cb = invoke_pending_cb; |
2587 | invoke_cb = invoke_pending_cb; |
2133 | } |
2588 | } |
2134 | |
2589 | |
2135 | void |
2590 | void |
2136 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2591 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
2137 | { |
2592 | { |
2138 | release_cb = release; |
2593 | release_cb = release; |
2139 | acquire_cb = acquire; |
2594 | acquire_cb = acquire; |
2140 | } |
2595 | } |
2141 | #endif |
2596 | #endif |
2142 | |
2597 | |
2143 | /* initialise a loop structure, must be zero-initialised */ |
2598 | /* initialise a loop structure, must be zero-initialised */ |
2144 | static void noinline ecb_cold |
2599 | static void noinline ecb_cold |
2145 | loop_init (EV_P_ unsigned int flags) |
2600 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2146 | { |
2601 | { |
2147 | if (!backend) |
2602 | if (!backend) |
2148 | { |
2603 | { |
2149 | origflags = flags; |
2604 | origflags = flags; |
2150 | |
2605 | |
… | |
… | |
2195 | #if EV_ASYNC_ENABLE |
2650 | #if EV_ASYNC_ENABLE |
2196 | async_pending = 0; |
2651 | async_pending = 0; |
2197 | #endif |
2652 | #endif |
2198 | pipe_write_skipped = 0; |
2653 | pipe_write_skipped = 0; |
2199 | pipe_write_wanted = 0; |
2654 | pipe_write_wanted = 0; |
|
|
2655 | evpipe [0] = -1; |
|
|
2656 | evpipe [1] = -1; |
2200 | #if EV_USE_INOTIFY |
2657 | #if EV_USE_INOTIFY |
2201 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2658 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2202 | #endif |
2659 | #endif |
2203 | #if EV_USE_SIGNALFD |
2660 | #if EV_USE_SIGNALFD |
2204 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2661 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2255 | EV_INVOKE_PENDING; |
2712 | EV_INVOKE_PENDING; |
2256 | } |
2713 | } |
2257 | #endif |
2714 | #endif |
2258 | |
2715 | |
2259 | #if EV_CHILD_ENABLE |
2716 | #if EV_CHILD_ENABLE |
2260 | if (ev_is_active (&childev)) |
2717 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2261 | { |
2718 | { |
2262 | ev_ref (EV_A); /* child watcher */ |
2719 | ev_ref (EV_A); /* child watcher */ |
2263 | ev_signal_stop (EV_A_ &childev); |
2720 | ev_signal_stop (EV_A_ &childev); |
2264 | } |
2721 | } |
2265 | #endif |
2722 | #endif |
… | |
… | |
2267 | if (ev_is_active (&pipe_w)) |
2724 | if (ev_is_active (&pipe_w)) |
2268 | { |
2725 | { |
2269 | /*ev_ref (EV_A);*/ |
2726 | /*ev_ref (EV_A);*/ |
2270 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2727 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2271 | |
2728 | |
2272 | #if EV_USE_EVENTFD |
|
|
2273 | if (evfd >= 0) |
|
|
2274 | close (evfd); |
|
|
2275 | #endif |
|
|
2276 | |
|
|
2277 | if (evpipe [0] >= 0) |
|
|
2278 | { |
|
|
2279 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2729 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2280 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2730 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2281 | } |
|
|
2282 | } |
2731 | } |
2283 | |
2732 | |
2284 | #if EV_USE_SIGNALFD |
2733 | #if EV_USE_SIGNALFD |
2285 | if (ev_is_active (&sigfd_w)) |
2734 | if (ev_is_active (&sigfd_w)) |
2286 | close (sigfd); |
2735 | close (sigfd); |
… | |
… | |
2372 | #endif |
2821 | #endif |
2373 | #if EV_USE_INOTIFY |
2822 | #if EV_USE_INOTIFY |
2374 | infy_fork (EV_A); |
2823 | infy_fork (EV_A); |
2375 | #endif |
2824 | #endif |
2376 | |
2825 | |
|
|
2826 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2377 | if (ev_is_active (&pipe_w)) |
2827 | if (ev_is_active (&pipe_w)) |
2378 | { |
2828 | { |
2379 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2829 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2380 | |
2830 | |
2381 | ev_ref (EV_A); |
2831 | ev_ref (EV_A); |
2382 | ev_io_stop (EV_A_ &pipe_w); |
2832 | ev_io_stop (EV_A_ &pipe_w); |
2383 | |
2833 | |
2384 | #if EV_USE_EVENTFD |
|
|
2385 | if (evfd >= 0) |
|
|
2386 | close (evfd); |
|
|
2387 | #endif |
|
|
2388 | |
|
|
2389 | if (evpipe [0] >= 0) |
2834 | if (evpipe [0] >= 0) |
2390 | { |
|
|
2391 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2835 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2392 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2393 | } |
|
|
2394 | |
2836 | |
2395 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2396 | evpipe_init (EV_A); |
2837 | evpipe_init (EV_A); |
2397 | /* now iterate over everything, in case we missed something */ |
2838 | /* iterate over everything, in case we missed something before */ |
2398 | pipecb (EV_A_ &pipe_w, EV_READ); |
2839 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2399 | #endif |
|
|
2400 | } |
2840 | } |
|
|
2841 | #endif |
2401 | |
2842 | |
2402 | postfork = 0; |
2843 | postfork = 0; |
2403 | } |
2844 | } |
2404 | |
2845 | |
2405 | #if EV_MULTIPLICITY |
2846 | #if EV_MULTIPLICITY |
2406 | |
2847 | |
2407 | struct ev_loop * ecb_cold |
2848 | struct ev_loop * ecb_cold |
2408 | ev_loop_new (unsigned int flags) |
2849 | ev_loop_new (unsigned int flags) EV_THROW |
2409 | { |
2850 | { |
2410 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2851 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2411 | |
2852 | |
2412 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2853 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2413 | loop_init (EV_A_ flags); |
2854 | loop_init (EV_A_ flags); |
… | |
… | |
2457 | } |
2898 | } |
2458 | #endif |
2899 | #endif |
2459 | |
2900 | |
2460 | #if EV_FEATURE_API |
2901 | #if EV_FEATURE_API |
2461 | void ecb_cold |
2902 | void ecb_cold |
2462 | ev_verify (EV_P) |
2903 | ev_verify (EV_P) EV_THROW |
2463 | { |
2904 | { |
2464 | #if EV_VERIFY |
2905 | #if EV_VERIFY |
2465 | int i; |
2906 | int i; |
2466 | WL w; |
2907 | WL w, w2; |
2467 | |
2908 | |
2468 | assert (activecnt >= -1); |
2909 | assert (activecnt >= -1); |
2469 | |
2910 | |
2470 | assert (fdchangemax >= fdchangecnt); |
2911 | assert (fdchangemax >= fdchangecnt); |
2471 | for (i = 0; i < fdchangecnt; ++i) |
2912 | for (i = 0; i < fdchangecnt; ++i) |
2472 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2913 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2473 | |
2914 | |
2474 | assert (anfdmax >= 0); |
2915 | assert (anfdmax >= 0); |
2475 | for (i = 0; i < anfdmax; ++i) |
2916 | for (i = 0; i < anfdmax; ++i) |
|
|
2917 | { |
|
|
2918 | int j = 0; |
|
|
2919 | |
2476 | for (w = anfds [i].head; w; w = w->next) |
2920 | for (w = w2 = anfds [i].head; w; w = w->next) |
2477 | { |
2921 | { |
2478 | verify_watcher (EV_A_ (W)w); |
2922 | verify_watcher (EV_A_ (W)w); |
|
|
2923 | |
|
|
2924 | if (j++ & 1) |
|
|
2925 | { |
|
|
2926 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2927 | w2 = w2->next; |
|
|
2928 | } |
|
|
2929 | |
2479 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2930 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2480 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2931 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2481 | } |
2932 | } |
|
|
2933 | } |
2482 | |
2934 | |
2483 | assert (timermax >= timercnt); |
2935 | assert (timermax >= timercnt); |
2484 | verify_heap (EV_A_ timers, timercnt); |
2936 | verify_heap (EV_A_ timers, timercnt); |
2485 | |
2937 | |
2486 | #if EV_PERIODIC_ENABLE |
2938 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2536 | #if EV_MULTIPLICITY |
2988 | #if EV_MULTIPLICITY |
2537 | struct ev_loop * ecb_cold |
2989 | struct ev_loop * ecb_cold |
2538 | #else |
2990 | #else |
2539 | int |
2991 | int |
2540 | #endif |
2992 | #endif |
2541 | ev_default_loop (unsigned int flags) |
2993 | ev_default_loop (unsigned int flags) EV_THROW |
2542 | { |
2994 | { |
2543 | if (!ev_default_loop_ptr) |
2995 | if (!ev_default_loop_ptr) |
2544 | { |
2996 | { |
2545 | #if EV_MULTIPLICITY |
2997 | #if EV_MULTIPLICITY |
2546 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2998 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2565 | |
3017 | |
2566 | return ev_default_loop_ptr; |
3018 | return ev_default_loop_ptr; |
2567 | } |
3019 | } |
2568 | |
3020 | |
2569 | void |
3021 | void |
2570 | ev_loop_fork (EV_P) |
3022 | ev_loop_fork (EV_P) EV_THROW |
2571 | { |
3023 | { |
2572 | postfork = 1; /* must be in line with ev_default_fork */ |
3024 | postfork = 1; |
2573 | } |
3025 | } |
2574 | |
3026 | |
2575 | /*****************************************************************************/ |
3027 | /*****************************************************************************/ |
2576 | |
3028 | |
2577 | void |
3029 | void |
… | |
… | |
2579 | { |
3031 | { |
2580 | EV_CB_INVOKE ((W)w, revents); |
3032 | EV_CB_INVOKE ((W)w, revents); |
2581 | } |
3033 | } |
2582 | |
3034 | |
2583 | unsigned int |
3035 | unsigned int |
2584 | ev_pending_count (EV_P) |
3036 | ev_pending_count (EV_P) EV_THROW |
2585 | { |
3037 | { |
2586 | int pri; |
3038 | int pri; |
2587 | unsigned int count = 0; |
3039 | unsigned int count = 0; |
2588 | |
3040 | |
2589 | for (pri = NUMPRI; pri--; ) |
3041 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2593 | } |
3045 | } |
2594 | |
3046 | |
2595 | void noinline |
3047 | void noinline |
2596 | ev_invoke_pending (EV_P) |
3048 | ev_invoke_pending (EV_P) |
2597 | { |
3049 | { |
2598 | int pri; |
3050 | pendingpri = NUMPRI; |
2599 | |
3051 | |
2600 | for (pri = NUMPRI; pri--; ) |
3052 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3053 | { |
|
|
3054 | --pendingpri; |
|
|
3055 | |
2601 | while (pendingcnt [pri]) |
3056 | while (pendingcnt [pendingpri]) |
2602 | { |
3057 | { |
2603 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3058 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2604 | |
3059 | |
2605 | p->w->pending = 0; |
3060 | p->w->pending = 0; |
2606 | EV_CB_INVOKE (p->w, p->events); |
3061 | EV_CB_INVOKE (p->w, p->events); |
2607 | EV_FREQUENT_CHECK; |
3062 | EV_FREQUENT_CHECK; |
2608 | } |
3063 | } |
|
|
3064 | } |
2609 | } |
3065 | } |
2610 | |
3066 | |
2611 | #if EV_IDLE_ENABLE |
3067 | #if EV_IDLE_ENABLE |
2612 | /* make idle watchers pending. this handles the "call-idle */ |
3068 | /* make idle watchers pending. this handles the "call-idle */ |
2613 | /* only when higher priorities are idle" logic */ |
3069 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2703 | { |
3159 | { |
2704 | EV_FREQUENT_CHECK; |
3160 | EV_FREQUENT_CHECK; |
2705 | |
3161 | |
2706 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3162 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2707 | { |
3163 | { |
2708 | int feed_count = 0; |
|
|
2709 | |
|
|
2710 | do |
3164 | do |
2711 | { |
3165 | { |
2712 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3166 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2713 | |
3167 | |
2714 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3168 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2848 | |
3302 | |
2849 | mn_now = ev_rt_now; |
3303 | mn_now = ev_rt_now; |
2850 | } |
3304 | } |
2851 | } |
3305 | } |
2852 | |
3306 | |
2853 | void |
3307 | int |
2854 | ev_run (EV_P_ int flags) |
3308 | ev_run (EV_P_ int flags) |
2855 | { |
3309 | { |
2856 | #if EV_FEATURE_API |
3310 | #if EV_FEATURE_API |
2857 | ++loop_depth; |
3311 | ++loop_depth; |
2858 | #endif |
3312 | #endif |
… | |
… | |
2971 | #endif |
3425 | #endif |
2972 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3426 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2973 | backend_poll (EV_A_ waittime); |
3427 | backend_poll (EV_A_ waittime); |
2974 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3428 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2975 | |
3429 | |
2976 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
3430 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
2977 | |
3431 | |
|
|
3432 | ECB_MEMORY_FENCE_ACQUIRE; |
2978 | if (pipe_write_skipped) |
3433 | if (pipe_write_skipped) |
2979 | { |
3434 | { |
2980 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3435 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
2981 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3436 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2982 | } |
3437 | } |
… | |
… | |
3015 | loop_done = EVBREAK_CANCEL; |
3470 | loop_done = EVBREAK_CANCEL; |
3016 | |
3471 | |
3017 | #if EV_FEATURE_API |
3472 | #if EV_FEATURE_API |
3018 | --loop_depth; |
3473 | --loop_depth; |
3019 | #endif |
3474 | #endif |
|
|
3475 | |
|
|
3476 | return activecnt; |
3020 | } |
3477 | } |
3021 | |
3478 | |
3022 | void |
3479 | void |
3023 | ev_break (EV_P_ int how) |
3480 | ev_break (EV_P_ int how) EV_THROW |
3024 | { |
3481 | { |
3025 | loop_done = how; |
3482 | loop_done = how; |
3026 | } |
3483 | } |
3027 | |
3484 | |
3028 | void |
3485 | void |
3029 | ev_ref (EV_P) |
3486 | ev_ref (EV_P) EV_THROW |
3030 | { |
3487 | { |
3031 | ++activecnt; |
3488 | ++activecnt; |
3032 | } |
3489 | } |
3033 | |
3490 | |
3034 | void |
3491 | void |
3035 | ev_unref (EV_P) |
3492 | ev_unref (EV_P) EV_THROW |
3036 | { |
3493 | { |
3037 | --activecnt; |
3494 | --activecnt; |
3038 | } |
3495 | } |
3039 | |
3496 | |
3040 | void |
3497 | void |
3041 | ev_now_update (EV_P) |
3498 | ev_now_update (EV_P) EV_THROW |
3042 | { |
3499 | { |
3043 | time_update (EV_A_ 1e100); |
3500 | time_update (EV_A_ 1e100); |
3044 | } |
3501 | } |
3045 | |
3502 | |
3046 | void |
3503 | void |
3047 | ev_suspend (EV_P) |
3504 | ev_suspend (EV_P) EV_THROW |
3048 | { |
3505 | { |
3049 | ev_now_update (EV_A); |
3506 | ev_now_update (EV_A); |
3050 | } |
3507 | } |
3051 | |
3508 | |
3052 | void |
3509 | void |
3053 | ev_resume (EV_P) |
3510 | ev_resume (EV_P) EV_THROW |
3054 | { |
3511 | { |
3055 | ev_tstamp mn_prev = mn_now; |
3512 | ev_tstamp mn_prev = mn_now; |
3056 | |
3513 | |
3057 | ev_now_update (EV_A); |
3514 | ev_now_update (EV_A); |
3058 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3515 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3097 | w->pending = 0; |
3554 | w->pending = 0; |
3098 | } |
3555 | } |
3099 | } |
3556 | } |
3100 | |
3557 | |
3101 | int |
3558 | int |
3102 | ev_clear_pending (EV_P_ void *w) |
3559 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3103 | { |
3560 | { |
3104 | W w_ = (W)w; |
3561 | W w_ = (W)w; |
3105 | int pending = w_->pending; |
3562 | int pending = w_->pending; |
3106 | |
3563 | |
3107 | if (expect_true (pending)) |
3564 | if (expect_true (pending)) |
… | |
… | |
3140 | } |
3597 | } |
3141 | |
3598 | |
3142 | /*****************************************************************************/ |
3599 | /*****************************************************************************/ |
3143 | |
3600 | |
3144 | void noinline |
3601 | void noinline |
3145 | ev_io_start (EV_P_ ev_io *w) |
3602 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3146 | { |
3603 | { |
3147 | int fd = w->fd; |
3604 | int fd = w->fd; |
3148 | |
3605 | |
3149 | if (expect_false (ev_is_active (w))) |
3606 | if (expect_false (ev_is_active (w))) |
3150 | return; |
3607 | return; |
… | |
… | |
3156 | |
3613 | |
3157 | ev_start (EV_A_ (W)w, 1); |
3614 | ev_start (EV_A_ (W)w, 1); |
3158 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3615 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3159 | wlist_add (&anfds[fd].head, (WL)w); |
3616 | wlist_add (&anfds[fd].head, (WL)w); |
3160 | |
3617 | |
|
|
3618 | /* common bug, apparently */ |
|
|
3619 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3620 | |
3161 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3621 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3162 | w->events &= ~EV__IOFDSET; |
3622 | w->events &= ~EV__IOFDSET; |
3163 | |
3623 | |
3164 | EV_FREQUENT_CHECK; |
3624 | EV_FREQUENT_CHECK; |
3165 | } |
3625 | } |
3166 | |
3626 | |
3167 | void noinline |
3627 | void noinline |
3168 | ev_io_stop (EV_P_ ev_io *w) |
3628 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3169 | { |
3629 | { |
3170 | clear_pending (EV_A_ (W)w); |
3630 | clear_pending (EV_A_ (W)w); |
3171 | if (expect_false (!ev_is_active (w))) |
3631 | if (expect_false (!ev_is_active (w))) |
3172 | return; |
3632 | return; |
3173 | |
3633 | |
… | |
… | |
3182 | |
3642 | |
3183 | EV_FREQUENT_CHECK; |
3643 | EV_FREQUENT_CHECK; |
3184 | } |
3644 | } |
3185 | |
3645 | |
3186 | void noinline |
3646 | void noinline |
3187 | ev_timer_start (EV_P_ ev_timer *w) |
3647 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3188 | { |
3648 | { |
3189 | if (expect_false (ev_is_active (w))) |
3649 | if (expect_false (ev_is_active (w))) |
3190 | return; |
3650 | return; |
3191 | |
3651 | |
3192 | ev_at (w) += mn_now; |
3652 | ev_at (w) += mn_now; |
… | |
… | |
3206 | |
3666 | |
3207 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3667 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3208 | } |
3668 | } |
3209 | |
3669 | |
3210 | void noinline |
3670 | void noinline |
3211 | ev_timer_stop (EV_P_ ev_timer *w) |
3671 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3212 | { |
3672 | { |
3213 | clear_pending (EV_A_ (W)w); |
3673 | clear_pending (EV_A_ (W)w); |
3214 | if (expect_false (!ev_is_active (w))) |
3674 | if (expect_false (!ev_is_active (w))) |
3215 | return; |
3675 | return; |
3216 | |
3676 | |
… | |
… | |
3236 | |
3696 | |
3237 | EV_FREQUENT_CHECK; |
3697 | EV_FREQUENT_CHECK; |
3238 | } |
3698 | } |
3239 | |
3699 | |
3240 | void noinline |
3700 | void noinline |
3241 | ev_timer_again (EV_P_ ev_timer *w) |
3701 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3242 | { |
3702 | { |
3243 | EV_FREQUENT_CHECK; |
3703 | EV_FREQUENT_CHECK; |
|
|
3704 | |
|
|
3705 | clear_pending (EV_A_ (W)w); |
3244 | |
3706 | |
3245 | if (ev_is_active (w)) |
3707 | if (ev_is_active (w)) |
3246 | { |
3708 | { |
3247 | if (w->repeat) |
3709 | if (w->repeat) |
3248 | { |
3710 | { |
… | |
… | |
3261 | |
3723 | |
3262 | EV_FREQUENT_CHECK; |
3724 | EV_FREQUENT_CHECK; |
3263 | } |
3725 | } |
3264 | |
3726 | |
3265 | ev_tstamp |
3727 | ev_tstamp |
3266 | ev_timer_remaining (EV_P_ ev_timer *w) |
3728 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
3267 | { |
3729 | { |
3268 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3730 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3269 | } |
3731 | } |
3270 | |
3732 | |
3271 | #if EV_PERIODIC_ENABLE |
3733 | #if EV_PERIODIC_ENABLE |
3272 | void noinline |
3734 | void noinline |
3273 | ev_periodic_start (EV_P_ ev_periodic *w) |
3735 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3274 | { |
3736 | { |
3275 | if (expect_false (ev_is_active (w))) |
3737 | if (expect_false (ev_is_active (w))) |
3276 | return; |
3738 | return; |
3277 | |
3739 | |
3278 | if (w->reschedule_cb) |
3740 | if (w->reschedule_cb) |
… | |
… | |
3298 | |
3760 | |
3299 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3761 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3300 | } |
3762 | } |
3301 | |
3763 | |
3302 | void noinline |
3764 | void noinline |
3303 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3765 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3304 | { |
3766 | { |
3305 | clear_pending (EV_A_ (W)w); |
3767 | clear_pending (EV_A_ (W)w); |
3306 | if (expect_false (!ev_is_active (w))) |
3768 | if (expect_false (!ev_is_active (w))) |
3307 | return; |
3769 | return; |
3308 | |
3770 | |
… | |
… | |
3326 | |
3788 | |
3327 | EV_FREQUENT_CHECK; |
3789 | EV_FREQUENT_CHECK; |
3328 | } |
3790 | } |
3329 | |
3791 | |
3330 | void noinline |
3792 | void noinline |
3331 | ev_periodic_again (EV_P_ ev_periodic *w) |
3793 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3332 | { |
3794 | { |
3333 | /* TODO: use adjustheap and recalculation */ |
3795 | /* TODO: use adjustheap and recalculation */ |
3334 | ev_periodic_stop (EV_A_ w); |
3796 | ev_periodic_stop (EV_A_ w); |
3335 | ev_periodic_start (EV_A_ w); |
3797 | ev_periodic_start (EV_A_ w); |
3336 | } |
3798 | } |
… | |
… | |
3341 | #endif |
3803 | #endif |
3342 | |
3804 | |
3343 | #if EV_SIGNAL_ENABLE |
3805 | #if EV_SIGNAL_ENABLE |
3344 | |
3806 | |
3345 | void noinline |
3807 | void noinline |
3346 | ev_signal_start (EV_P_ ev_signal *w) |
3808 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3347 | { |
3809 | { |
3348 | if (expect_false (ev_is_active (w))) |
3810 | if (expect_false (ev_is_active (w))) |
3349 | return; |
3811 | return; |
3350 | |
3812 | |
3351 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3813 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3353 | #if EV_MULTIPLICITY |
3815 | #if EV_MULTIPLICITY |
3354 | assert (("libev: a signal must not be attached to two different loops", |
3816 | assert (("libev: a signal must not be attached to two different loops", |
3355 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3817 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3356 | |
3818 | |
3357 | signals [w->signum - 1].loop = EV_A; |
3819 | signals [w->signum - 1].loop = EV_A; |
|
|
3820 | ECB_MEMORY_FENCE_RELEASE; |
3358 | #endif |
3821 | #endif |
3359 | |
3822 | |
3360 | EV_FREQUENT_CHECK; |
3823 | EV_FREQUENT_CHECK; |
3361 | |
3824 | |
3362 | #if EV_USE_SIGNALFD |
3825 | #if EV_USE_SIGNALFD |
… | |
… | |
3422 | |
3885 | |
3423 | EV_FREQUENT_CHECK; |
3886 | EV_FREQUENT_CHECK; |
3424 | } |
3887 | } |
3425 | |
3888 | |
3426 | void noinline |
3889 | void noinline |
3427 | ev_signal_stop (EV_P_ ev_signal *w) |
3890 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3428 | { |
3891 | { |
3429 | clear_pending (EV_A_ (W)w); |
3892 | clear_pending (EV_A_ (W)w); |
3430 | if (expect_false (!ev_is_active (w))) |
3893 | if (expect_false (!ev_is_active (w))) |
3431 | return; |
3894 | return; |
3432 | |
3895 | |
… | |
… | |
3463 | #endif |
3926 | #endif |
3464 | |
3927 | |
3465 | #if EV_CHILD_ENABLE |
3928 | #if EV_CHILD_ENABLE |
3466 | |
3929 | |
3467 | void |
3930 | void |
3468 | ev_child_start (EV_P_ ev_child *w) |
3931 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3469 | { |
3932 | { |
3470 | #if EV_MULTIPLICITY |
3933 | #if EV_MULTIPLICITY |
3471 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3934 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3472 | #endif |
3935 | #endif |
3473 | if (expect_false (ev_is_active (w))) |
3936 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3480 | |
3943 | |
3481 | EV_FREQUENT_CHECK; |
3944 | EV_FREQUENT_CHECK; |
3482 | } |
3945 | } |
3483 | |
3946 | |
3484 | void |
3947 | void |
3485 | ev_child_stop (EV_P_ ev_child *w) |
3948 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3486 | { |
3949 | { |
3487 | clear_pending (EV_A_ (W)w); |
3950 | clear_pending (EV_A_ (W)w); |
3488 | if (expect_false (!ev_is_active (w))) |
3951 | if (expect_false (!ev_is_active (w))) |
3489 | return; |
3952 | return; |
3490 | |
3953 | |
… | |
… | |
3517 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3980 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3518 | |
3981 | |
3519 | static void noinline |
3982 | static void noinline |
3520 | infy_add (EV_P_ ev_stat *w) |
3983 | infy_add (EV_P_ ev_stat *w) |
3521 | { |
3984 | { |
3522 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
3985 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3986 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3987 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3988 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3523 | |
3989 | |
3524 | if (w->wd >= 0) |
3990 | if (w->wd >= 0) |
3525 | { |
3991 | { |
3526 | struct statfs sfs; |
3992 | struct statfs sfs; |
3527 | |
3993 | |
… | |
… | |
3531 | |
3997 | |
3532 | if (!fs_2625) |
3998 | if (!fs_2625) |
3533 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3999 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3534 | else if (!statfs (w->path, &sfs) |
4000 | else if (!statfs (w->path, &sfs) |
3535 | && (sfs.f_type == 0x1373 /* devfs */ |
4001 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4002 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4003 | || sfs.f_type == 0x4d44 /* msdos */ |
3536 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4004 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4005 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4006 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4007 | || sfs.f_type == 0x5346544e /* ntfs */ |
3537 | || sfs.f_type == 0x3153464a /* jfs */ |
4008 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4009 | || sfs.f_type == 0x9123683e /* btrfs */ |
3538 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4010 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3539 | || sfs.f_type == 0x01021994 /* tempfs */ |
4011 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3540 | || sfs.f_type == 0x58465342 /* xfs */)) |
4012 | || sfs.f_type == 0x58465342 /* xfs */)) |
3541 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4013 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3542 | else |
4014 | else |
3543 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4015 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3544 | } |
4016 | } |
… | |
… | |
3657 | } |
4129 | } |
3658 | |
4130 | |
3659 | inline_size int |
4131 | inline_size int |
3660 | infy_newfd (void) |
4132 | infy_newfd (void) |
3661 | { |
4133 | { |
3662 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4134 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3663 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4135 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3664 | if (fd >= 0) |
4136 | if (fd >= 0) |
3665 | return fd; |
4137 | return fd; |
3666 | #endif |
4138 | #endif |
3667 | return inotify_init (); |
4139 | return inotify_init (); |
… | |
… | |
3742 | #else |
4214 | #else |
3743 | # define EV_LSTAT(p,b) lstat (p, b) |
4215 | # define EV_LSTAT(p,b) lstat (p, b) |
3744 | #endif |
4216 | #endif |
3745 | |
4217 | |
3746 | void |
4218 | void |
3747 | ev_stat_stat (EV_P_ ev_stat *w) |
4219 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3748 | { |
4220 | { |
3749 | if (lstat (w->path, &w->attr) < 0) |
4221 | if (lstat (w->path, &w->attr) < 0) |
3750 | w->attr.st_nlink = 0; |
4222 | w->attr.st_nlink = 0; |
3751 | else if (!w->attr.st_nlink) |
4223 | else if (!w->attr.st_nlink) |
3752 | w->attr.st_nlink = 1; |
4224 | w->attr.st_nlink = 1; |
… | |
… | |
3791 | ev_feed_event (EV_A_ w, EV_STAT); |
4263 | ev_feed_event (EV_A_ w, EV_STAT); |
3792 | } |
4264 | } |
3793 | } |
4265 | } |
3794 | |
4266 | |
3795 | void |
4267 | void |
3796 | ev_stat_start (EV_P_ ev_stat *w) |
4268 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3797 | { |
4269 | { |
3798 | if (expect_false (ev_is_active (w))) |
4270 | if (expect_false (ev_is_active (w))) |
3799 | return; |
4271 | return; |
3800 | |
4272 | |
3801 | ev_stat_stat (EV_A_ w); |
4273 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3822 | |
4294 | |
3823 | EV_FREQUENT_CHECK; |
4295 | EV_FREQUENT_CHECK; |
3824 | } |
4296 | } |
3825 | |
4297 | |
3826 | void |
4298 | void |
3827 | ev_stat_stop (EV_P_ ev_stat *w) |
4299 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3828 | { |
4300 | { |
3829 | clear_pending (EV_A_ (W)w); |
4301 | clear_pending (EV_A_ (W)w); |
3830 | if (expect_false (!ev_is_active (w))) |
4302 | if (expect_false (!ev_is_active (w))) |
3831 | return; |
4303 | return; |
3832 | |
4304 | |
… | |
… | |
3848 | } |
4320 | } |
3849 | #endif |
4321 | #endif |
3850 | |
4322 | |
3851 | #if EV_IDLE_ENABLE |
4323 | #if EV_IDLE_ENABLE |
3852 | void |
4324 | void |
3853 | ev_idle_start (EV_P_ ev_idle *w) |
4325 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3854 | { |
4326 | { |
3855 | if (expect_false (ev_is_active (w))) |
4327 | if (expect_false (ev_is_active (w))) |
3856 | return; |
4328 | return; |
3857 | |
4329 | |
3858 | pri_adjust (EV_A_ (W)w); |
4330 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3871 | |
4343 | |
3872 | EV_FREQUENT_CHECK; |
4344 | EV_FREQUENT_CHECK; |
3873 | } |
4345 | } |
3874 | |
4346 | |
3875 | void |
4347 | void |
3876 | ev_idle_stop (EV_P_ ev_idle *w) |
4348 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3877 | { |
4349 | { |
3878 | clear_pending (EV_A_ (W)w); |
4350 | clear_pending (EV_A_ (W)w); |
3879 | if (expect_false (!ev_is_active (w))) |
4351 | if (expect_false (!ev_is_active (w))) |
3880 | return; |
4352 | return; |
3881 | |
4353 | |
… | |
… | |
3895 | } |
4367 | } |
3896 | #endif |
4368 | #endif |
3897 | |
4369 | |
3898 | #if EV_PREPARE_ENABLE |
4370 | #if EV_PREPARE_ENABLE |
3899 | void |
4371 | void |
3900 | ev_prepare_start (EV_P_ ev_prepare *w) |
4372 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3901 | { |
4373 | { |
3902 | if (expect_false (ev_is_active (w))) |
4374 | if (expect_false (ev_is_active (w))) |
3903 | return; |
4375 | return; |
3904 | |
4376 | |
3905 | EV_FREQUENT_CHECK; |
4377 | EV_FREQUENT_CHECK; |
… | |
… | |
3910 | |
4382 | |
3911 | EV_FREQUENT_CHECK; |
4383 | EV_FREQUENT_CHECK; |
3912 | } |
4384 | } |
3913 | |
4385 | |
3914 | void |
4386 | void |
3915 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4387 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3916 | { |
4388 | { |
3917 | clear_pending (EV_A_ (W)w); |
4389 | clear_pending (EV_A_ (W)w); |
3918 | if (expect_false (!ev_is_active (w))) |
4390 | if (expect_false (!ev_is_active (w))) |
3919 | return; |
4391 | return; |
3920 | |
4392 | |
… | |
… | |
3933 | } |
4405 | } |
3934 | #endif |
4406 | #endif |
3935 | |
4407 | |
3936 | #if EV_CHECK_ENABLE |
4408 | #if EV_CHECK_ENABLE |
3937 | void |
4409 | void |
3938 | ev_check_start (EV_P_ ev_check *w) |
4410 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3939 | { |
4411 | { |
3940 | if (expect_false (ev_is_active (w))) |
4412 | if (expect_false (ev_is_active (w))) |
3941 | return; |
4413 | return; |
3942 | |
4414 | |
3943 | EV_FREQUENT_CHECK; |
4415 | EV_FREQUENT_CHECK; |
… | |
… | |
3948 | |
4420 | |
3949 | EV_FREQUENT_CHECK; |
4421 | EV_FREQUENT_CHECK; |
3950 | } |
4422 | } |
3951 | |
4423 | |
3952 | void |
4424 | void |
3953 | ev_check_stop (EV_P_ ev_check *w) |
4425 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3954 | { |
4426 | { |
3955 | clear_pending (EV_A_ (W)w); |
4427 | clear_pending (EV_A_ (W)w); |
3956 | if (expect_false (!ev_is_active (w))) |
4428 | if (expect_false (!ev_is_active (w))) |
3957 | return; |
4429 | return; |
3958 | |
4430 | |
… | |
… | |
3971 | } |
4443 | } |
3972 | #endif |
4444 | #endif |
3973 | |
4445 | |
3974 | #if EV_EMBED_ENABLE |
4446 | #if EV_EMBED_ENABLE |
3975 | void noinline |
4447 | void noinline |
3976 | ev_embed_sweep (EV_P_ ev_embed *w) |
4448 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3977 | { |
4449 | { |
3978 | ev_run (w->other, EVRUN_NOWAIT); |
4450 | ev_run (w->other, EVRUN_NOWAIT); |
3979 | } |
4451 | } |
3980 | |
4452 | |
3981 | static void |
4453 | static void |
… | |
… | |
4029 | ev_idle_stop (EV_A_ idle); |
4501 | ev_idle_stop (EV_A_ idle); |
4030 | } |
4502 | } |
4031 | #endif |
4503 | #endif |
4032 | |
4504 | |
4033 | void |
4505 | void |
4034 | ev_embed_start (EV_P_ ev_embed *w) |
4506 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4035 | { |
4507 | { |
4036 | if (expect_false (ev_is_active (w))) |
4508 | if (expect_false (ev_is_active (w))) |
4037 | return; |
4509 | return; |
4038 | |
4510 | |
4039 | { |
4511 | { |
… | |
… | |
4060 | |
4532 | |
4061 | EV_FREQUENT_CHECK; |
4533 | EV_FREQUENT_CHECK; |
4062 | } |
4534 | } |
4063 | |
4535 | |
4064 | void |
4536 | void |
4065 | ev_embed_stop (EV_P_ ev_embed *w) |
4537 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4066 | { |
4538 | { |
4067 | clear_pending (EV_A_ (W)w); |
4539 | clear_pending (EV_A_ (W)w); |
4068 | if (expect_false (!ev_is_active (w))) |
4540 | if (expect_false (!ev_is_active (w))) |
4069 | return; |
4541 | return; |
4070 | |
4542 | |
… | |
… | |
4080 | } |
4552 | } |
4081 | #endif |
4553 | #endif |
4082 | |
4554 | |
4083 | #if EV_FORK_ENABLE |
4555 | #if EV_FORK_ENABLE |
4084 | void |
4556 | void |
4085 | ev_fork_start (EV_P_ ev_fork *w) |
4557 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4086 | { |
4558 | { |
4087 | if (expect_false (ev_is_active (w))) |
4559 | if (expect_false (ev_is_active (w))) |
4088 | return; |
4560 | return; |
4089 | |
4561 | |
4090 | EV_FREQUENT_CHECK; |
4562 | EV_FREQUENT_CHECK; |
… | |
… | |
4095 | |
4567 | |
4096 | EV_FREQUENT_CHECK; |
4568 | EV_FREQUENT_CHECK; |
4097 | } |
4569 | } |
4098 | |
4570 | |
4099 | void |
4571 | void |
4100 | ev_fork_stop (EV_P_ ev_fork *w) |
4572 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4101 | { |
4573 | { |
4102 | clear_pending (EV_A_ (W)w); |
4574 | clear_pending (EV_A_ (W)w); |
4103 | if (expect_false (!ev_is_active (w))) |
4575 | if (expect_false (!ev_is_active (w))) |
4104 | return; |
4576 | return; |
4105 | |
4577 | |
… | |
… | |
4118 | } |
4590 | } |
4119 | #endif |
4591 | #endif |
4120 | |
4592 | |
4121 | #if EV_CLEANUP_ENABLE |
4593 | #if EV_CLEANUP_ENABLE |
4122 | void |
4594 | void |
4123 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4595 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4124 | { |
4596 | { |
4125 | if (expect_false (ev_is_active (w))) |
4597 | if (expect_false (ev_is_active (w))) |
4126 | return; |
4598 | return; |
4127 | |
4599 | |
4128 | EV_FREQUENT_CHECK; |
4600 | EV_FREQUENT_CHECK; |
… | |
… | |
4135 | ev_unref (EV_A); |
4607 | ev_unref (EV_A); |
4136 | EV_FREQUENT_CHECK; |
4608 | EV_FREQUENT_CHECK; |
4137 | } |
4609 | } |
4138 | |
4610 | |
4139 | void |
4611 | void |
4140 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4612 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4141 | { |
4613 | { |
4142 | clear_pending (EV_A_ (W)w); |
4614 | clear_pending (EV_A_ (W)w); |
4143 | if (expect_false (!ev_is_active (w))) |
4615 | if (expect_false (!ev_is_active (w))) |
4144 | return; |
4616 | return; |
4145 | |
4617 | |
… | |
… | |
4159 | } |
4631 | } |
4160 | #endif |
4632 | #endif |
4161 | |
4633 | |
4162 | #if EV_ASYNC_ENABLE |
4634 | #if EV_ASYNC_ENABLE |
4163 | void |
4635 | void |
4164 | ev_async_start (EV_P_ ev_async *w) |
4636 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4165 | { |
4637 | { |
4166 | if (expect_false (ev_is_active (w))) |
4638 | if (expect_false (ev_is_active (w))) |
4167 | return; |
4639 | return; |
4168 | |
4640 | |
4169 | w->sent = 0; |
4641 | w->sent = 0; |
… | |
… | |
4178 | |
4650 | |
4179 | EV_FREQUENT_CHECK; |
4651 | EV_FREQUENT_CHECK; |
4180 | } |
4652 | } |
4181 | |
4653 | |
4182 | void |
4654 | void |
4183 | ev_async_stop (EV_P_ ev_async *w) |
4655 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4184 | { |
4656 | { |
4185 | clear_pending (EV_A_ (W)w); |
4657 | clear_pending (EV_A_ (W)w); |
4186 | if (expect_false (!ev_is_active (w))) |
4658 | if (expect_false (!ev_is_active (w))) |
4187 | return; |
4659 | return; |
4188 | |
4660 | |
… | |
… | |
4199 | |
4671 | |
4200 | EV_FREQUENT_CHECK; |
4672 | EV_FREQUENT_CHECK; |
4201 | } |
4673 | } |
4202 | |
4674 | |
4203 | void |
4675 | void |
4204 | ev_async_send (EV_P_ ev_async *w) |
4676 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
4205 | { |
4677 | { |
4206 | w->sent = 1; |
4678 | w->sent = 1; |
4207 | evpipe_write (EV_A_ &async_pending); |
4679 | evpipe_write (EV_A_ &async_pending); |
4208 | } |
4680 | } |
4209 | #endif |
4681 | #endif |
… | |
… | |
4246 | |
4718 | |
4247 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4719 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4248 | } |
4720 | } |
4249 | |
4721 | |
4250 | void |
4722 | void |
4251 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4723 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
4252 | { |
4724 | { |
4253 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4725 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4254 | |
4726 | |
4255 | if (expect_false (!once)) |
4727 | if (expect_false (!once)) |
4256 | { |
4728 | { |
… | |
… | |
4278 | |
4750 | |
4279 | /*****************************************************************************/ |
4751 | /*****************************************************************************/ |
4280 | |
4752 | |
4281 | #if EV_WALK_ENABLE |
4753 | #if EV_WALK_ENABLE |
4282 | void ecb_cold |
4754 | void ecb_cold |
4283 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4755 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
4284 | { |
4756 | { |
4285 | int i, j; |
4757 | int i, j; |
4286 | ev_watcher_list *wl, *wn; |
4758 | ev_watcher_list *wl, *wn; |
4287 | |
4759 | |
4288 | if (types & (EV_IO | EV_EMBED)) |
4760 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
4394 | |
4866 | |
4395 | #if EV_MULTIPLICITY |
4867 | #if EV_MULTIPLICITY |
4396 | #include "ev_wrap.h" |
4868 | #include "ev_wrap.h" |
4397 | #endif |
4869 | #endif |
4398 | |
4870 | |
4399 | EV_CPP(}) |
|
|
4400 | |
|
|