1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
59 | # endif |
59 | # endif |
60 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
62 | # endif |
62 | # endif |
63 | # endif |
63 | # endif |
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
66 | # endif |
66 | # endif |
67 | |
67 | |
68 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
69 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
183 | # include EV_H |
183 | # include EV_H |
184 | #else |
184 | #else |
185 | # include "ev.h" |
185 | # include "ev.h" |
186 | #endif |
186 | #endif |
187 | |
187 | |
188 | EV_CPP(extern "C" {) |
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
|
|
197 | #endif |
189 | |
198 | |
190 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
191 | # include <sys/time.h> |
200 | # include <sys/time.h> |
192 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
193 | # include <unistd.h> |
202 | # include <unistd.h> |
194 | #else |
203 | #else |
195 | # include <io.h> |
204 | # include <io.h> |
196 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
197 | # include <windows.h> |
207 | # include <windows.h> |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
200 | # endif |
210 | # endif |
201 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
211 | |
221 | |
212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
213 | |
223 | |
214 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
215 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
216 | /* use what's provided */ |
226 | /* use what's provided */ |
217 | #elif defined (NSIG) |
227 | #elif defined NSIG |
218 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
219 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
220 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
221 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
222 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
223 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
224 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
225 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
226 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
227 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
228 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
229 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
230 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
231 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
233 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
235 | #else |
245 | #else |
236 | # error "unable to find value for NSIG, please report" |
246 | # 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 (©) 2009-2012 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; |
|
|
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 __x86_64 || _M_AMD64 |
|
|
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_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
576 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
577 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
578 | #define ECB_CPP (__cplusplus+0) |
|
|
579 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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580 | |
|
|
581 | #if ECB_CPP |
|
|
582 | #define ECB_EXTERN_C extern "C" |
|
|
583 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
584 | #define ECB_EXTERN_C_END } |
|
|
585 | #else |
|
|
586 | #define ECB_EXTERN_C extern |
|
|
587 | #define ECB_EXTERN_C_BEG |
|
|
588 | #define ECB_EXTERN_C_END |
|
|
589 | #endif |
|
|
590 | |
536 | /*****************************************************************************/ |
591 | /*****************************************************************************/ |
537 | |
592 | |
538 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
593 | /* 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 */ |
594 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
540 | |
595 | |
541 | #if ECB_NO_THREADS || ECB_NO_SMP |
596 | #if ECB_NO_THREADS |
|
|
597 | #define ECB_NO_SMP 1 |
|
|
598 | #endif |
|
|
599 | |
|
|
600 | #if ECB_NO_SMP |
542 | #define ECB_MEMORY_FENCE do { } while (0) |
601 | #define ECB_MEMORY_FENCE do { } while (0) |
543 | #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0) |
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|
544 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) |
|
|
545 | #endif |
602 | #endif |
546 | |
603 | |
547 | #ifndef ECB_MEMORY_FENCE |
604 | #ifndef ECB_MEMORY_FENCE |
548 | #if ECB_GCC_VERSION(2,5) |
605 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
549 | #if __x86 |
606 | #if __i386 || __i386__ |
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
607 | #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 */ |
608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
552 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
553 | #elif __amd64 |
610 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
555 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
612 | #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 */ |
613 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
557 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
614 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
558 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
559 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
616 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
560 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \ |
617 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
618 | #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__ ) \ |
619 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
562 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
620 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
563 | #define ECB_MEMORY_FENCE \ |
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
564 | do { \ |
622 | #elif __sparc || __sparc__ |
565 | int null = 0; \ |
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
566 | __asm__ __volatile__ ("mcr p15,0,%0,c6,c10,5", : "=&r" (null) : : "memory"); \ |
624 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
567 | while (0) |
625 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
626 | #elif defined __s390__ || defined __s390x__ |
|
|
627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
628 | #elif defined __mips__ |
|
|
629 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
630 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
631 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
632 | #elif defined __alpha__ |
|
|
633 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
634 | #elif defined __hppa__ |
|
|
635 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
636 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
637 | #elif defined __ia64__ |
|
|
638 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
639 | #elif defined __m68k__ |
|
|
640 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
641 | #elif defined __m88k__ |
|
|
642 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
643 | #elif defined __sh__ |
|
|
644 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
568 | #endif |
645 | #endif |
569 | #endif |
646 | #endif |
570 | #endif |
647 | #endif |
571 | |
648 | |
572 | #ifndef ECB_MEMORY_FENCE |
649 | #ifndef ECB_MEMORY_FENCE |
|
|
650 | #if ECB_GCC_VERSION(4,7) |
|
|
651 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
652 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
653 | |
|
|
654 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
655 | * without risking compile time errors with other compilers. We *could* |
|
|
656 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
657 | * around this shit time and again. |
|
|
658 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
659 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
660 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
661 | */ |
|
|
662 | |
573 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) |
663 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
574 | #define ECB_MEMORY_FENCE __sync_synchronize () |
664 | #define ECB_MEMORY_FENCE __sync_synchronize () |
575 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
576 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
577 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
665 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
578 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
666 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
579 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
667 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
580 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
668 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
581 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
669 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
582 | #elif defined(_WIN32) |
670 | #elif defined _WIN32 |
583 | #include <WinNT.h> |
671 | #include <WinNT.h> |
584 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
672 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
673 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
674 | #include <mbarrier.h> |
|
|
675 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
676 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
677 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
678 | #elif __xlC__ |
|
|
679 | #define ECB_MEMORY_FENCE __sync () |
|
|
680 | #endif |
|
|
681 | #endif |
|
|
682 | |
|
|
683 | #ifndef ECB_MEMORY_FENCE |
|
|
684 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
685 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
686 | /* not just C11 atomics and atomic accesses */ |
|
|
687 | #include <stdatomic.h> |
|
|
688 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
689 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
690 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
691 | /* for most usages, or gcc and clang have a bug */ |
|
|
692 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
693 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
694 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
585 | #endif |
695 | #endif |
586 | #endif |
696 | #endif |
587 | |
697 | |
588 | #ifndef ECB_MEMORY_FENCE |
698 | #ifndef ECB_MEMORY_FENCE |
589 | #if !ECB_AVOID_PTHREADS |
699 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
601 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
711 | 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) |
712 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
603 | #endif |
713 | #endif |
604 | #endif |
714 | #endif |
605 | |
715 | |
606 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
716 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
607 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
717 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
608 | #endif |
718 | #endif |
609 | |
719 | |
610 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
720 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
611 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
721 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
612 | #endif |
722 | #endif |
613 | |
723 | |
614 | /*****************************************************************************/ |
724 | /*****************************************************************************/ |
615 | |
|
|
616 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
617 | |
725 | |
618 | #if __cplusplus |
726 | #if __cplusplus |
619 | #define ecb_inline static inline |
727 | #define ecb_inline static inline |
620 | #elif ECB_GCC_VERSION(2,5) |
728 | #elif ECB_GCC_VERSION(2,5) |
621 | #define ecb_inline static __inline__ |
729 | #define ecb_inline static __inline__ |
… | |
… | |
660 | #elif ECB_GCC_VERSION(3,0) |
768 | #elif ECB_GCC_VERSION(3,0) |
661 | #define ecb_decltype(x) __typeof(x) |
769 | #define ecb_decltype(x) __typeof(x) |
662 | #endif |
770 | #endif |
663 | |
771 | |
664 | #define ecb_noinline ecb_attribute ((__noinline__)) |
772 | #define ecb_noinline ecb_attribute ((__noinline__)) |
665 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
666 | #define ecb_unused ecb_attribute ((__unused__)) |
773 | #define ecb_unused ecb_attribute ((__unused__)) |
667 | #define ecb_const ecb_attribute ((__const__)) |
774 | #define ecb_const ecb_attribute ((__const__)) |
668 | #define ecb_pure ecb_attribute ((__pure__)) |
775 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
776 | |
|
|
777 | #if ECB_C11 |
|
|
778 | #define ecb_noreturn _Noreturn |
|
|
779 | #else |
|
|
780 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
781 | #endif |
669 | |
782 | |
670 | #if ECB_GCC_VERSION(4,3) |
783 | #if ECB_GCC_VERSION(4,3) |
671 | #define ecb_artificial ecb_attribute ((__artificial__)) |
784 | #define ecb_artificial ecb_attribute ((__artificial__)) |
672 | #define ecb_hot ecb_attribute ((__hot__)) |
785 | #define ecb_hot ecb_attribute ((__hot__)) |
673 | #define ecb_cold ecb_attribute ((__cold__)) |
786 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
764 | |
877 | |
765 | return r + ecb_ld32 (x); |
878 | return r + ecb_ld32 (x); |
766 | } |
879 | } |
767 | #endif |
880 | #endif |
768 | |
881 | |
|
|
882 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
883 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
884 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
885 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
886 | |
|
|
887 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
888 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
889 | { |
|
|
890 | return ( (x * 0x0802U & 0x22110U) |
|
|
891 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
892 | } |
|
|
893 | |
|
|
894 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
895 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
896 | { |
|
|
897 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
898 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
899 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
900 | x = ( x >> 8 ) | ( x << 8); |
|
|
901 | |
|
|
902 | return x; |
|
|
903 | } |
|
|
904 | |
|
|
905 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
906 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
907 | { |
|
|
908 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
909 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
910 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
911 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
912 | x = ( x >> 16 ) | ( x << 16); |
|
|
913 | |
|
|
914 | return x; |
|
|
915 | } |
|
|
916 | |
769 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
917 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
770 | /* so for this version we are lazy */ |
918 | /* so for this version we are lazy */ |
771 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
919 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
772 | ecb_function_ int |
920 | ecb_function_ int |
773 | ecb_popcount64 (uint64_t x) |
921 | ecb_popcount64 (uint64_t x) |
… | |
… | |
822 | |
970 | |
823 | #if ECB_GCC_VERSION(4,5) |
971 | #if ECB_GCC_VERSION(4,5) |
824 | #define ecb_unreachable() __builtin_unreachable () |
972 | #define ecb_unreachable() __builtin_unreachable () |
825 | #else |
973 | #else |
826 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
974 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
827 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
975 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
828 | ecb_function_ void ecb_unreachable (void) { } |
976 | ecb_inline void ecb_unreachable (void) { } |
829 | #endif |
977 | #endif |
830 | |
978 | |
831 | /* try to tell the compiler that some condition is definitely true */ |
979 | /* try to tell the compiler that some condition is definitely true */ |
832 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
980 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
833 | |
981 | |
834 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
982 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
835 | ecb_function_ unsigned char |
983 | ecb_inline unsigned char |
836 | ecb_byteorder_helper (void) |
984 | ecb_byteorder_helper (void) |
837 | { |
985 | { |
838 | const uint32_t u = 0x11223344; |
986 | /* the union code still generates code under pressure in gcc, */ |
839 | return *(unsigned char *)&u; |
987 | /* but less than using pointers, and always seems to */ |
|
|
988 | /* successfully return a constant. */ |
|
|
989 | /* the reason why we have this horrible preprocessor mess */ |
|
|
990 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
991 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
992 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
993 | return 0x44; |
|
|
994 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
995 | return 0x44; |
|
|
996 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
997 | return 0x11; |
|
|
998 | #else |
|
|
999 | union |
|
|
1000 | { |
|
|
1001 | uint32_t i; |
|
|
1002 | uint8_t c; |
|
|
1003 | } u = { 0x11223344 }; |
|
|
1004 | return u.c; |
|
|
1005 | #endif |
840 | } |
1006 | } |
841 | |
1007 | |
842 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
1008 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
843 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1009 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
844 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
1010 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
845 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1011 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
846 | |
1012 | |
847 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1013 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
848 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1014 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
849 | #else |
1015 | #else |
850 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1016 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1017 | #endif |
|
|
1018 | |
|
|
1019 | #if __cplusplus |
|
|
1020 | template<typename T> |
|
|
1021 | static inline T ecb_div_rd (T val, T div) |
|
|
1022 | { |
|
|
1023 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1024 | } |
|
|
1025 | template<typename T> |
|
|
1026 | static inline T ecb_div_ru (T val, T div) |
|
|
1027 | { |
|
|
1028 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1029 | } |
|
|
1030 | #else |
|
|
1031 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1032 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
851 | #endif |
1033 | #endif |
852 | |
1034 | |
853 | #if ecb_cplusplus_does_not_suck |
1035 | #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) */ |
1036 | /* 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> |
1037 | template<typename T, int N> |
… | |
… | |
859 | } |
1041 | } |
860 | #else |
1042 | #else |
861 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1043 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
862 | #endif |
1044 | #endif |
863 | |
1045 | |
|
|
1046 | /*******************************************************************************/ |
|
|
1047 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1048 | |
|
|
1049 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1050 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1051 | #if 0 \ |
|
|
1052 | || __i386 || __i386__ \ |
|
|
1053 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1054 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1055 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1056 | || defined __s390__ || defined __s390x__ \ |
|
|
1057 | || defined __mips__ \ |
|
|
1058 | || defined __alpha__ \ |
|
|
1059 | || defined __hppa__ \ |
|
|
1060 | || defined __ia64__ \ |
|
|
1061 | || defined __m68k__ \ |
|
|
1062 | || defined __m88k__ \ |
|
|
1063 | || defined __sh__ \ |
|
|
1064 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1065 | #define ECB_STDFP 1 |
|
|
1066 | #include <string.h> /* for memcpy */ |
|
|
1067 | #else |
|
|
1068 | #define ECB_STDFP 0 |
|
|
1069 | #endif |
|
|
1070 | |
|
|
1071 | #ifndef ECB_NO_LIBM |
|
|
1072 | |
|
|
1073 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1074 | |
|
|
1075 | #ifdef NEN |
|
|
1076 | #define ECB_NAN NAN |
|
|
1077 | #else |
|
|
1078 | #define ECB_NAN INFINITY |
|
|
1079 | #endif |
|
|
1080 | |
|
|
1081 | /* converts an ieee half/binary16 to a float */ |
|
|
1082 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1083 | ecb_function_ float |
|
|
1084 | ecb_binary16_to_float (uint16_t x) |
|
|
1085 | { |
|
|
1086 | int e = (x >> 10) & 0x1f; |
|
|
1087 | int m = x & 0x3ff; |
|
|
1088 | float r; |
|
|
1089 | |
|
|
1090 | if (!e ) r = ldexpf (m , -24); |
|
|
1091 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1092 | else if (m ) r = ECB_NAN; |
|
|
1093 | else r = INFINITY; |
|
|
1094 | |
|
|
1095 | return x & 0x8000 ? -r : r; |
|
|
1096 | } |
|
|
1097 | |
|
|
1098 | /* convert a float to ieee single/binary32 */ |
|
|
1099 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1100 | ecb_function_ uint32_t |
|
|
1101 | ecb_float_to_binary32 (float x) |
|
|
1102 | { |
|
|
1103 | uint32_t r; |
|
|
1104 | |
|
|
1105 | #if ECB_STDFP |
|
|
1106 | memcpy (&r, &x, 4); |
|
|
1107 | #else |
|
|
1108 | /* slow emulation, works for anything but -0 */ |
|
|
1109 | uint32_t m; |
|
|
1110 | int e; |
|
|
1111 | |
|
|
1112 | if (x == 0e0f ) return 0x00000000U; |
|
|
1113 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1114 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1115 | if (x != x ) return 0x7fbfffffU; |
|
|
1116 | |
|
|
1117 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1118 | |
|
|
1119 | r = m & 0x80000000U; |
|
|
1120 | |
|
|
1121 | if (r) |
|
|
1122 | m = -m; |
|
|
1123 | |
|
|
1124 | if (e <= -126) |
|
|
1125 | { |
|
|
1126 | m &= 0xffffffU; |
|
|
1127 | m >>= (-125 - e); |
|
|
1128 | e = -126; |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | r |= (e + 126) << 23; |
|
|
1132 | r |= m & 0x7fffffU; |
|
|
1133 | #endif |
|
|
1134 | |
|
|
1135 | return r; |
|
|
1136 | } |
|
|
1137 | |
|
|
1138 | /* converts an ieee single/binary32 to a float */ |
|
|
1139 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1140 | ecb_function_ float |
|
|
1141 | ecb_binary32_to_float (uint32_t x) |
|
|
1142 | { |
|
|
1143 | float r; |
|
|
1144 | |
|
|
1145 | #if ECB_STDFP |
|
|
1146 | memcpy (&r, &x, 4); |
|
|
1147 | #else |
|
|
1148 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1149 | int neg = x >> 31; |
|
|
1150 | int e = (x >> 23) & 0xffU; |
|
|
1151 | |
|
|
1152 | x &= 0x7fffffU; |
|
|
1153 | |
|
|
1154 | if (e) |
|
|
1155 | x |= 0x800000U; |
|
|
1156 | else |
|
|
1157 | e = 1; |
|
|
1158 | |
|
|
1159 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1160 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1161 | |
|
|
1162 | r = neg ? -r : r; |
|
|
1163 | #endif |
|
|
1164 | |
|
|
1165 | return r; |
|
|
1166 | } |
|
|
1167 | |
|
|
1168 | /* convert a double to ieee double/binary64 */ |
|
|
1169 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1170 | ecb_function_ uint64_t |
|
|
1171 | ecb_double_to_binary64 (double x) |
|
|
1172 | { |
|
|
1173 | uint64_t r; |
|
|
1174 | |
|
|
1175 | #if ECB_STDFP |
|
|
1176 | memcpy (&r, &x, 8); |
|
|
1177 | #else |
|
|
1178 | /* slow emulation, works for anything but -0 */ |
|
|
1179 | uint64_t m; |
|
|
1180 | int e; |
|
|
1181 | |
|
|
1182 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1183 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1184 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1185 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1186 | |
|
|
1187 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1188 | |
|
|
1189 | r = m & 0x8000000000000000;; |
|
|
1190 | |
|
|
1191 | if (r) |
|
|
1192 | m = -m; |
|
|
1193 | |
|
|
1194 | if (e <= -1022) |
|
|
1195 | { |
|
|
1196 | m &= 0x1fffffffffffffU; |
|
|
1197 | m >>= (-1021 - e); |
|
|
1198 | e = -1022; |
|
|
1199 | } |
|
|
1200 | |
|
|
1201 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1202 | r |= m & 0xfffffffffffffU; |
|
|
1203 | #endif |
|
|
1204 | |
|
|
1205 | return r; |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | /* converts an ieee double/binary64 to a double */ |
|
|
1209 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1210 | ecb_function_ double |
|
|
1211 | ecb_binary64_to_double (uint64_t x) |
|
|
1212 | { |
|
|
1213 | double r; |
|
|
1214 | |
|
|
1215 | #if ECB_STDFP |
|
|
1216 | memcpy (&r, &x, 8); |
|
|
1217 | #else |
|
|
1218 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1219 | int neg = x >> 63; |
|
|
1220 | int e = (x >> 52) & 0x7ffU; |
|
|
1221 | |
|
|
1222 | x &= 0xfffffffffffffU; |
|
|
1223 | |
|
|
1224 | if (e) |
|
|
1225 | x |= 0x10000000000000U; |
|
|
1226 | else |
|
|
1227 | e = 1; |
|
|
1228 | |
|
|
1229 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1230 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1231 | |
|
|
1232 | r = neg ? -r : r; |
|
|
1233 | #endif |
|
|
1234 | |
|
|
1235 | return r; |
|
|
1236 | } |
|
|
1237 | |
|
|
1238 | #endif |
|
|
1239 | |
864 | #endif |
1240 | #endif |
865 | |
1241 | |
866 | /* ECB.H END */ |
1242 | /* ECB.H END */ |
867 | |
1243 | |
868 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1244 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1245 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1246 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1247 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1248 | * libev, in which cases the memory fences become nops. |
|
|
1249 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1250 | * which will then provide the memory fences. |
|
|
1251 | */ |
|
|
1252 | # error "memory fences not defined for your architecture, please report" |
|
|
1253 | #endif |
|
|
1254 | |
869 | # undef ECB_MEMORY_FENCE |
1255 | #ifndef ECB_MEMORY_FENCE |
870 | # undef ECB_MEMORY_FENCE_ACQUIRE |
1256 | # define ECB_MEMORY_FENCE do { } while (0) |
871 | # undef ECB_MEMORY_FENCE_RELEASE |
1257 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1258 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
872 | #endif |
1259 | #endif |
873 | |
1260 | |
874 | #define expect_false(cond) ecb_expect_false (cond) |
1261 | #define expect_false(cond) ecb_expect_false (cond) |
875 | #define expect_true(cond) ecb_expect_true (cond) |
1262 | #define expect_true(cond) ecb_expect_true (cond) |
876 | #define noinline ecb_noinline |
1263 | #define noinline ecb_noinline |
… | |
… | |
1023 | { |
1410 | { |
1024 | write (STDERR_FILENO, msg, strlen (msg)); |
1411 | write (STDERR_FILENO, msg, strlen (msg)); |
1025 | } |
1412 | } |
1026 | #endif |
1413 | #endif |
1027 | |
1414 | |
1028 | static void (*syserr_cb)(const char *msg); |
1415 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1029 | |
1416 | |
1030 | void ecb_cold |
1417 | void ecb_cold |
1031 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1418 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1032 | { |
1419 | { |
1033 | syserr_cb = cb; |
1420 | syserr_cb = cb; |
1034 | } |
1421 | } |
1035 | |
1422 | |
1036 | static void noinline ecb_cold |
1423 | static void noinline ecb_cold |
… | |
… | |
1054 | abort (); |
1441 | abort (); |
1055 | } |
1442 | } |
1056 | } |
1443 | } |
1057 | |
1444 | |
1058 | static void * |
1445 | static void * |
1059 | ev_realloc_emul (void *ptr, long size) |
1446 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1060 | { |
1447 | { |
1061 | #if __GLIBC__ |
|
|
1062 | return realloc (ptr, size); |
|
|
1063 | #else |
|
|
1064 | /* some systems, notably openbsd and darwin, fail to properly |
1448 | /* some systems, notably openbsd and darwin, fail to properly |
1065 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1449 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1066 | * the single unix specification, so work around them here. |
1450 | * the single unix specification, so work around them here. |
|
|
1451 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1452 | * despite documenting it otherwise. |
1067 | */ |
1453 | */ |
1068 | |
1454 | |
1069 | if (size) |
1455 | if (size) |
1070 | return realloc (ptr, size); |
1456 | return realloc (ptr, size); |
1071 | |
1457 | |
1072 | free (ptr); |
1458 | free (ptr); |
1073 | return 0; |
1459 | return 0; |
1074 | #endif |
|
|
1075 | } |
1460 | } |
1076 | |
1461 | |
1077 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1462 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1078 | |
1463 | |
1079 | void ecb_cold |
1464 | void ecb_cold |
1080 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1465 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1081 | { |
1466 | { |
1082 | alloc = cb; |
1467 | alloc = cb; |
1083 | } |
1468 | } |
1084 | |
1469 | |
1085 | inline_speed void * |
1470 | inline_speed void * |
… | |
… | |
1173 | #undef VAR |
1558 | #undef VAR |
1174 | }; |
1559 | }; |
1175 | #include "ev_wrap.h" |
1560 | #include "ev_wrap.h" |
1176 | |
1561 | |
1177 | static struct ev_loop default_loop_struct; |
1562 | static struct ev_loop default_loop_struct; |
1178 | struct ev_loop *ev_default_loop_ptr; |
1563 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1179 | |
1564 | |
1180 | #else |
1565 | #else |
1181 | |
1566 | |
1182 | ev_tstamp ev_rt_now; |
1567 | 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; |
1568 | #define VAR(name,decl) static decl; |
1184 | #include "ev_vars.h" |
1569 | #include "ev_vars.h" |
1185 | #undef VAR |
1570 | #undef VAR |
1186 | |
1571 | |
1187 | static int ev_default_loop_ptr; |
1572 | static int ev_default_loop_ptr; |
… | |
… | |
1202 | |
1587 | |
1203 | /*****************************************************************************/ |
1588 | /*****************************************************************************/ |
1204 | |
1589 | |
1205 | #ifndef EV_HAVE_EV_TIME |
1590 | #ifndef EV_HAVE_EV_TIME |
1206 | ev_tstamp |
1591 | ev_tstamp |
1207 | ev_time (void) |
1592 | ev_time (void) EV_THROW |
1208 | { |
1593 | { |
1209 | #if EV_USE_REALTIME |
1594 | #if EV_USE_REALTIME |
1210 | if (expect_true (have_realtime)) |
1595 | if (expect_true (have_realtime)) |
1211 | { |
1596 | { |
1212 | struct timespec ts; |
1597 | struct timespec ts; |
… | |
… | |
1236 | return ev_time (); |
1621 | return ev_time (); |
1237 | } |
1622 | } |
1238 | |
1623 | |
1239 | #if EV_MULTIPLICITY |
1624 | #if EV_MULTIPLICITY |
1240 | ev_tstamp |
1625 | ev_tstamp |
1241 | ev_now (EV_P) |
1626 | ev_now (EV_P) EV_THROW |
1242 | { |
1627 | { |
1243 | return ev_rt_now; |
1628 | return ev_rt_now; |
1244 | } |
1629 | } |
1245 | #endif |
1630 | #endif |
1246 | |
1631 | |
1247 | void |
1632 | void |
1248 | ev_sleep (ev_tstamp delay) |
1633 | ev_sleep (ev_tstamp delay) EV_THROW |
1249 | { |
1634 | { |
1250 | if (delay > 0.) |
1635 | if (delay > 0.) |
1251 | { |
1636 | { |
1252 | #if EV_USE_NANOSLEEP |
1637 | #if EV_USE_NANOSLEEP |
1253 | struct timespec ts; |
1638 | struct timespec ts; |
1254 | |
1639 | |
1255 | EV_TS_SET (ts, delay); |
1640 | EV_TS_SET (ts, delay); |
1256 | nanosleep (&ts, 0); |
1641 | nanosleep (&ts, 0); |
1257 | #elif defined(_WIN32) |
1642 | #elif defined _WIN32 |
1258 | Sleep ((unsigned long)(delay * 1e3)); |
1643 | Sleep ((unsigned long)(delay * 1e3)); |
1259 | #else |
1644 | #else |
1260 | struct timeval tv; |
1645 | struct timeval tv; |
1261 | |
1646 | |
1262 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1647 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1281 | |
1666 | |
1282 | do |
1667 | do |
1283 | ncur <<= 1; |
1668 | ncur <<= 1; |
1284 | while (cnt > ncur); |
1669 | while (cnt > ncur); |
1285 | |
1670 | |
1286 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1671 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
1287 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1672 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1288 | { |
1673 | { |
1289 | ncur *= elem; |
1674 | ncur *= elem; |
1290 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1675 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1291 | ncur = ncur - sizeof (void *) * 4; |
1676 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
1334 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1719 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1335 | { |
1720 | { |
1336 | } |
1721 | } |
1337 | |
1722 | |
1338 | void noinline |
1723 | void noinline |
1339 | ev_feed_event (EV_P_ void *w, int revents) |
1724 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1340 | { |
1725 | { |
1341 | W w_ = (W)w; |
1726 | W w_ = (W)w; |
1342 | int pri = ABSPRI (w_); |
1727 | int pri = ABSPRI (w_); |
1343 | |
1728 | |
1344 | if (expect_false (w_->pending)) |
1729 | if (expect_false (w_->pending)) |
… | |
… | |
1348 | w_->pending = ++pendingcnt [pri]; |
1733 | w_->pending = ++pendingcnt [pri]; |
1349 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1734 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1350 | pendings [pri][w_->pending - 1].w = w_; |
1735 | pendings [pri][w_->pending - 1].w = w_; |
1351 | pendings [pri][w_->pending - 1].events = revents; |
1736 | pendings [pri][w_->pending - 1].events = revents; |
1352 | } |
1737 | } |
|
|
1738 | |
|
|
1739 | pendingpri = NUMPRI - 1; |
1353 | } |
1740 | } |
1354 | |
1741 | |
1355 | inline_speed void |
1742 | inline_speed void |
1356 | feed_reverse (EV_P_ W w) |
1743 | feed_reverse (EV_P_ W w) |
1357 | { |
1744 | { |
… | |
… | |
1403 | if (expect_true (!anfd->reify)) |
1790 | if (expect_true (!anfd->reify)) |
1404 | fd_event_nocheck (EV_A_ fd, revents); |
1791 | fd_event_nocheck (EV_A_ fd, revents); |
1405 | } |
1792 | } |
1406 | |
1793 | |
1407 | void |
1794 | void |
1408 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1795 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1409 | { |
1796 | { |
1410 | if (fd >= 0 && fd < anfdmax) |
1797 | if (fd >= 0 && fd < anfdmax) |
1411 | fd_event_nocheck (EV_A_ fd, revents); |
1798 | fd_event_nocheck (EV_A_ fd, revents); |
1412 | } |
1799 | } |
1413 | |
1800 | |
… | |
… | |
1732 | static void noinline ecb_cold |
2119 | static void noinline ecb_cold |
1733 | evpipe_init (EV_P) |
2120 | evpipe_init (EV_P) |
1734 | { |
2121 | { |
1735 | if (!ev_is_active (&pipe_w)) |
2122 | if (!ev_is_active (&pipe_w)) |
1736 | { |
2123 | { |
|
|
2124 | int fds [2]; |
|
|
2125 | |
1737 | # if EV_USE_EVENTFD |
2126 | # if EV_USE_EVENTFD |
|
|
2127 | fds [0] = -1; |
1738 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2128 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1739 | if (evfd < 0 && errno == EINVAL) |
2129 | if (fds [1] < 0 && errno == EINVAL) |
1740 | evfd = eventfd (0, 0); |
2130 | fds [1] = eventfd (0, 0); |
1741 | |
2131 | |
1742 | if (evfd >= 0) |
2132 | if (fds [1] < 0) |
|
|
2133 | # endif |
1743 | { |
2134 | { |
|
|
2135 | while (pipe (fds)) |
|
|
2136 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2137 | |
|
|
2138 | fd_intern (fds [0]); |
|
|
2139 | } |
|
|
2140 | |
1744 | evpipe [0] = -1; |
2141 | evpipe [0] = fds [0]; |
1745 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2142 | |
1746 | ev_io_set (&pipe_w, evfd, EV_READ); |
2143 | if (evpipe [1] < 0) |
|
|
2144 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2145 | else |
|
|
2146 | { |
|
|
2147 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2148 | /* so that evpipe_write can always rely on its value. */ |
|
|
2149 | /* this branch does not do anything sensible on windows, */ |
|
|
2150 | /* so must not be executed on windows */ |
|
|
2151 | |
|
|
2152 | dup2 (fds [1], evpipe [1]); |
|
|
2153 | close (fds [1]); |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | fd_intern (evpipe [1]); |
|
|
2157 | |
|
|
2158 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2159 | ev_io_start (EV_A_ &pipe_w); |
|
|
2160 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2161 | } |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | inline_speed void |
|
|
2165 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2166 | { |
|
|
2167 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2168 | |
|
|
2169 | if (expect_true (*flag)) |
|
|
2170 | return; |
|
|
2171 | |
|
|
2172 | *flag = 1; |
|
|
2173 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2174 | |
|
|
2175 | pipe_write_skipped = 1; |
|
|
2176 | |
|
|
2177 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2178 | |
|
|
2179 | if (pipe_write_wanted) |
|
|
2180 | { |
|
|
2181 | int old_errno; |
|
|
2182 | |
|
|
2183 | pipe_write_skipped = 0; |
|
|
2184 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2185 | |
|
|
2186 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2187 | |
|
|
2188 | #if EV_USE_EVENTFD |
|
|
2189 | if (evpipe [0] < 0) |
|
|
2190 | { |
|
|
2191 | uint64_t counter = 1; |
|
|
2192 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1747 | } |
2193 | } |
1748 | else |
2194 | else |
1749 | # endif |
2195 | #endif |
1750 | { |
2196 | { |
1751 | while (pipe (evpipe)) |
2197 | #ifdef _WIN32 |
1752 | ev_syserr ("(libev) error creating signal/async pipe"); |
2198 | WSABUF buf; |
1753 | |
2199 | DWORD sent; |
1754 | fd_intern (evpipe [0]); |
2200 | buf.buf = &buf; |
1755 | fd_intern (evpipe [1]); |
2201 | buf.len = 1; |
1756 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2202 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1757 | } |
2203 | #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); |
2204 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2205 | #endif |
1801 | } |
2206 | } |
1802 | |
2207 | |
1803 | errno = old_errno; |
2208 | errno = old_errno; |
1804 | } |
2209 | } |
1805 | } |
2210 | } |
… | |
… | |
1812 | int i; |
2217 | int i; |
1813 | |
2218 | |
1814 | if (revents & EV_READ) |
2219 | if (revents & EV_READ) |
1815 | { |
2220 | { |
1816 | #if EV_USE_EVENTFD |
2221 | #if EV_USE_EVENTFD |
1817 | if (evfd >= 0) |
2222 | if (evpipe [0] < 0) |
1818 | { |
2223 | { |
1819 | uint64_t counter; |
2224 | uint64_t counter; |
1820 | read (evfd, &counter, sizeof (uint64_t)); |
2225 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1821 | } |
2226 | } |
1822 | else |
2227 | else |
1823 | #endif |
2228 | #endif |
1824 | { |
2229 | { |
1825 | char dummy; |
2230 | char dummy[4]; |
1826 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2231 | #ifdef _WIN32 |
|
|
2232 | WSABUF buf; |
|
|
2233 | DWORD recvd; |
|
|
2234 | DWORD flags = 0; |
|
|
2235 | buf.buf = dummy; |
|
|
2236 | buf.len = sizeof (dummy); |
|
|
2237 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2238 | #else |
1827 | read (evpipe [0], &dummy, 1); |
2239 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2240 | #endif |
1828 | } |
2241 | } |
1829 | } |
2242 | } |
1830 | |
2243 | |
1831 | pipe_write_skipped = 0; |
2244 | pipe_write_skipped = 0; |
|
|
2245 | |
|
|
2246 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1832 | |
2247 | |
1833 | #if EV_SIGNAL_ENABLE |
2248 | #if EV_SIGNAL_ENABLE |
1834 | if (sig_pending) |
2249 | if (sig_pending) |
1835 | { |
2250 | { |
1836 | sig_pending = 0; |
2251 | sig_pending = 0; |
|
|
2252 | |
|
|
2253 | ECB_MEMORY_FENCE; |
1837 | |
2254 | |
1838 | for (i = EV_NSIG - 1; i--; ) |
2255 | for (i = EV_NSIG - 1; i--; ) |
1839 | if (expect_false (signals [i].pending)) |
2256 | if (expect_false (signals [i].pending)) |
1840 | ev_feed_signal_event (EV_A_ i + 1); |
2257 | ev_feed_signal_event (EV_A_ i + 1); |
1841 | } |
2258 | } |
… | |
… | |
1843 | |
2260 | |
1844 | #if EV_ASYNC_ENABLE |
2261 | #if EV_ASYNC_ENABLE |
1845 | if (async_pending) |
2262 | if (async_pending) |
1846 | { |
2263 | { |
1847 | async_pending = 0; |
2264 | async_pending = 0; |
|
|
2265 | |
|
|
2266 | ECB_MEMORY_FENCE; |
1848 | |
2267 | |
1849 | for (i = asynccnt; i--; ) |
2268 | for (i = asynccnt; i--; ) |
1850 | if (asyncs [i]->sent) |
2269 | if (asyncs [i]->sent) |
1851 | { |
2270 | { |
1852 | asyncs [i]->sent = 0; |
2271 | asyncs [i]->sent = 0; |
|
|
2272 | ECB_MEMORY_FENCE_RELEASE; |
1853 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2273 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1854 | } |
2274 | } |
1855 | } |
2275 | } |
1856 | #endif |
2276 | #endif |
1857 | } |
2277 | } |
1858 | |
2278 | |
1859 | /*****************************************************************************/ |
2279 | /*****************************************************************************/ |
1860 | |
2280 | |
1861 | void |
2281 | void |
1862 | ev_feed_signal (int signum) |
2282 | ev_feed_signal (int signum) EV_THROW |
1863 | { |
2283 | { |
1864 | #if EV_MULTIPLICITY |
2284 | #if EV_MULTIPLICITY |
|
|
2285 | EV_P; |
|
|
2286 | ECB_MEMORY_FENCE_ACQUIRE; |
1865 | EV_P = signals [signum - 1].loop; |
2287 | EV_A = signals [signum - 1].loop; |
1866 | |
2288 | |
1867 | if (!EV_A) |
2289 | if (!EV_A) |
1868 | return; |
2290 | return; |
1869 | #endif |
2291 | #endif |
1870 | |
2292 | |
1871 | if (!ev_active (&pipe_w)) |
|
|
1872 | return; |
|
|
1873 | |
|
|
1874 | signals [signum - 1].pending = 1; |
2293 | signals [signum - 1].pending = 1; |
1875 | evpipe_write (EV_A_ &sig_pending); |
2294 | evpipe_write (EV_A_ &sig_pending); |
1876 | } |
2295 | } |
1877 | |
2296 | |
1878 | static void |
2297 | static void |
… | |
… | |
1884 | |
2303 | |
1885 | ev_feed_signal (signum); |
2304 | ev_feed_signal (signum); |
1886 | } |
2305 | } |
1887 | |
2306 | |
1888 | void noinline |
2307 | void noinline |
1889 | ev_feed_signal_event (EV_P_ int signum) |
2308 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1890 | { |
2309 | { |
1891 | WL w; |
2310 | WL w; |
1892 | |
2311 | |
1893 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2312 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1894 | return; |
2313 | return; |
1895 | |
2314 | |
1896 | --signum; |
2315 | --signum; |
1897 | |
2316 | |
1898 | #if EV_MULTIPLICITY |
2317 | #if EV_MULTIPLICITY |
… | |
… | |
1902 | if (expect_false (signals [signum].loop != EV_A)) |
2321 | if (expect_false (signals [signum].loop != EV_A)) |
1903 | return; |
2322 | return; |
1904 | #endif |
2323 | #endif |
1905 | |
2324 | |
1906 | signals [signum].pending = 0; |
2325 | signals [signum].pending = 0; |
|
|
2326 | ECB_MEMORY_FENCE_RELEASE; |
1907 | |
2327 | |
1908 | for (w = signals [signum].head; w; w = w->next) |
2328 | for (w = signals [signum].head; w; w = w->next) |
1909 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2329 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1910 | } |
2330 | } |
1911 | |
2331 | |
… | |
… | |
2010 | #if EV_USE_SELECT |
2430 | #if EV_USE_SELECT |
2011 | # include "ev_select.c" |
2431 | # include "ev_select.c" |
2012 | #endif |
2432 | #endif |
2013 | |
2433 | |
2014 | int ecb_cold |
2434 | int ecb_cold |
2015 | ev_version_major (void) |
2435 | ev_version_major (void) EV_THROW |
2016 | { |
2436 | { |
2017 | return EV_VERSION_MAJOR; |
2437 | return EV_VERSION_MAJOR; |
2018 | } |
2438 | } |
2019 | |
2439 | |
2020 | int ecb_cold |
2440 | int ecb_cold |
2021 | ev_version_minor (void) |
2441 | ev_version_minor (void) EV_THROW |
2022 | { |
2442 | { |
2023 | return EV_VERSION_MINOR; |
2443 | return EV_VERSION_MINOR; |
2024 | } |
2444 | } |
2025 | |
2445 | |
2026 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2446 | /* return true if we are running with elevated privileges and should ignore env variables */ |
… | |
… | |
2034 | || getgid () != getegid (); |
2454 | || getgid () != getegid (); |
2035 | #endif |
2455 | #endif |
2036 | } |
2456 | } |
2037 | |
2457 | |
2038 | unsigned int ecb_cold |
2458 | unsigned int ecb_cold |
2039 | ev_supported_backends (void) |
2459 | ev_supported_backends (void) EV_THROW |
2040 | { |
2460 | { |
2041 | unsigned int flags = 0; |
2461 | unsigned int flags = 0; |
2042 | |
2462 | |
2043 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2463 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2044 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2464 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
2048 | |
2468 | |
2049 | return flags; |
2469 | return flags; |
2050 | } |
2470 | } |
2051 | |
2471 | |
2052 | unsigned int ecb_cold |
2472 | unsigned int ecb_cold |
2053 | ev_recommended_backends (void) |
2473 | ev_recommended_backends (void) EV_THROW |
2054 | { |
2474 | { |
2055 | unsigned int flags = ev_supported_backends (); |
2475 | unsigned int flags = ev_supported_backends (); |
2056 | |
2476 | |
2057 | #ifndef __NetBSD__ |
2477 | #ifndef __NetBSD__ |
2058 | /* kqueue is borked on everything but netbsd apparently */ |
2478 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2070 | |
2490 | |
2071 | return flags; |
2491 | return flags; |
2072 | } |
2492 | } |
2073 | |
2493 | |
2074 | unsigned int ecb_cold |
2494 | unsigned int ecb_cold |
2075 | ev_embeddable_backends (void) |
2495 | ev_embeddable_backends (void) EV_THROW |
2076 | { |
2496 | { |
2077 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2497 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2078 | |
2498 | |
2079 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2499 | /* 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 */ |
2500 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
2082 | |
2502 | |
2083 | return flags; |
2503 | return flags; |
2084 | } |
2504 | } |
2085 | |
2505 | |
2086 | unsigned int |
2506 | unsigned int |
2087 | ev_backend (EV_P) |
2507 | ev_backend (EV_P) EV_THROW |
2088 | { |
2508 | { |
2089 | return backend; |
2509 | return backend; |
2090 | } |
2510 | } |
2091 | |
2511 | |
2092 | #if EV_FEATURE_API |
2512 | #if EV_FEATURE_API |
2093 | unsigned int |
2513 | unsigned int |
2094 | ev_iteration (EV_P) |
2514 | ev_iteration (EV_P) EV_THROW |
2095 | { |
2515 | { |
2096 | return loop_count; |
2516 | return loop_count; |
2097 | } |
2517 | } |
2098 | |
2518 | |
2099 | unsigned int |
2519 | unsigned int |
2100 | ev_depth (EV_P) |
2520 | ev_depth (EV_P) EV_THROW |
2101 | { |
2521 | { |
2102 | return loop_depth; |
2522 | return loop_depth; |
2103 | } |
2523 | } |
2104 | |
2524 | |
2105 | void |
2525 | void |
2106 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2526 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2107 | { |
2527 | { |
2108 | io_blocktime = interval; |
2528 | io_blocktime = interval; |
2109 | } |
2529 | } |
2110 | |
2530 | |
2111 | void |
2531 | void |
2112 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2532 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2113 | { |
2533 | { |
2114 | timeout_blocktime = interval; |
2534 | timeout_blocktime = interval; |
2115 | } |
2535 | } |
2116 | |
2536 | |
2117 | void |
2537 | void |
2118 | ev_set_userdata (EV_P_ void *data) |
2538 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2119 | { |
2539 | { |
2120 | userdata = data; |
2540 | userdata = data; |
2121 | } |
2541 | } |
2122 | |
2542 | |
2123 | void * |
2543 | void * |
2124 | ev_userdata (EV_P) |
2544 | ev_userdata (EV_P) EV_THROW |
2125 | { |
2545 | { |
2126 | return userdata; |
2546 | return userdata; |
2127 | } |
2547 | } |
2128 | |
2548 | |
2129 | void |
2549 | void |
2130 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2550 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2131 | { |
2551 | { |
2132 | invoke_cb = invoke_pending_cb; |
2552 | invoke_cb = invoke_pending_cb; |
2133 | } |
2553 | } |
2134 | |
2554 | |
2135 | void |
2555 | void |
2136 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2556 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
2137 | { |
2557 | { |
2138 | release_cb = release; |
2558 | release_cb = release; |
2139 | acquire_cb = acquire; |
2559 | acquire_cb = acquire; |
2140 | } |
2560 | } |
2141 | #endif |
2561 | #endif |
2142 | |
2562 | |
2143 | /* initialise a loop structure, must be zero-initialised */ |
2563 | /* initialise a loop structure, must be zero-initialised */ |
2144 | static void noinline ecb_cold |
2564 | static void noinline ecb_cold |
2145 | loop_init (EV_P_ unsigned int flags) |
2565 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2146 | { |
2566 | { |
2147 | if (!backend) |
2567 | if (!backend) |
2148 | { |
2568 | { |
2149 | origflags = flags; |
2569 | origflags = flags; |
2150 | |
2570 | |
… | |
… | |
2195 | #if EV_ASYNC_ENABLE |
2615 | #if EV_ASYNC_ENABLE |
2196 | async_pending = 0; |
2616 | async_pending = 0; |
2197 | #endif |
2617 | #endif |
2198 | pipe_write_skipped = 0; |
2618 | pipe_write_skipped = 0; |
2199 | pipe_write_wanted = 0; |
2619 | pipe_write_wanted = 0; |
|
|
2620 | evpipe [0] = -1; |
|
|
2621 | evpipe [1] = -1; |
2200 | #if EV_USE_INOTIFY |
2622 | #if EV_USE_INOTIFY |
2201 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2623 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2202 | #endif |
2624 | #endif |
2203 | #if EV_USE_SIGNALFD |
2625 | #if EV_USE_SIGNALFD |
2204 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2626 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2255 | EV_INVOKE_PENDING; |
2677 | EV_INVOKE_PENDING; |
2256 | } |
2678 | } |
2257 | #endif |
2679 | #endif |
2258 | |
2680 | |
2259 | #if EV_CHILD_ENABLE |
2681 | #if EV_CHILD_ENABLE |
2260 | if (ev_is_active (&childev)) |
2682 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2261 | { |
2683 | { |
2262 | ev_ref (EV_A); /* child watcher */ |
2684 | ev_ref (EV_A); /* child watcher */ |
2263 | ev_signal_stop (EV_A_ &childev); |
2685 | ev_signal_stop (EV_A_ &childev); |
2264 | } |
2686 | } |
2265 | #endif |
2687 | #endif |
… | |
… | |
2267 | if (ev_is_active (&pipe_w)) |
2689 | if (ev_is_active (&pipe_w)) |
2268 | { |
2690 | { |
2269 | /*ev_ref (EV_A);*/ |
2691 | /*ev_ref (EV_A);*/ |
2270 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2692 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2271 | |
2693 | |
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]); |
2694 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2280 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2695 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2281 | } |
|
|
2282 | } |
2696 | } |
2283 | |
2697 | |
2284 | #if EV_USE_SIGNALFD |
2698 | #if EV_USE_SIGNALFD |
2285 | if (ev_is_active (&sigfd_w)) |
2699 | if (ev_is_active (&sigfd_w)) |
2286 | close (sigfd); |
2700 | close (sigfd); |
… | |
… | |
2372 | #endif |
2786 | #endif |
2373 | #if EV_USE_INOTIFY |
2787 | #if EV_USE_INOTIFY |
2374 | infy_fork (EV_A); |
2788 | infy_fork (EV_A); |
2375 | #endif |
2789 | #endif |
2376 | |
2790 | |
|
|
2791 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2377 | if (ev_is_active (&pipe_w)) |
2792 | if (ev_is_active (&pipe_w)) |
2378 | { |
2793 | { |
2379 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2794 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2380 | |
2795 | |
2381 | ev_ref (EV_A); |
2796 | ev_ref (EV_A); |
2382 | ev_io_stop (EV_A_ &pipe_w); |
2797 | ev_io_stop (EV_A_ &pipe_w); |
2383 | |
2798 | |
2384 | #if EV_USE_EVENTFD |
|
|
2385 | if (evfd >= 0) |
|
|
2386 | close (evfd); |
|
|
2387 | #endif |
|
|
2388 | |
|
|
2389 | if (evpipe [0] >= 0) |
2799 | if (evpipe [0] >= 0) |
2390 | { |
|
|
2391 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2800 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2392 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2393 | } |
|
|
2394 | |
2801 | |
2395 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2396 | evpipe_init (EV_A); |
2802 | evpipe_init (EV_A); |
2397 | /* now iterate over everything, in case we missed something */ |
2803 | /* iterate over everything, in case we missed something before */ |
2398 | pipecb (EV_A_ &pipe_w, EV_READ); |
2804 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2399 | #endif |
|
|
2400 | } |
2805 | } |
|
|
2806 | #endif |
2401 | |
2807 | |
2402 | postfork = 0; |
2808 | postfork = 0; |
2403 | } |
2809 | } |
2404 | |
2810 | |
2405 | #if EV_MULTIPLICITY |
2811 | #if EV_MULTIPLICITY |
2406 | |
2812 | |
2407 | struct ev_loop * ecb_cold |
2813 | struct ev_loop * ecb_cold |
2408 | ev_loop_new (unsigned int flags) |
2814 | ev_loop_new (unsigned int flags) EV_THROW |
2409 | { |
2815 | { |
2410 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2816 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2411 | |
2817 | |
2412 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2818 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2413 | loop_init (EV_A_ flags); |
2819 | loop_init (EV_A_ flags); |
… | |
… | |
2457 | } |
2863 | } |
2458 | #endif |
2864 | #endif |
2459 | |
2865 | |
2460 | #if EV_FEATURE_API |
2866 | #if EV_FEATURE_API |
2461 | void ecb_cold |
2867 | void ecb_cold |
2462 | ev_verify (EV_P) |
2868 | ev_verify (EV_P) EV_THROW |
2463 | { |
2869 | { |
2464 | #if EV_VERIFY |
2870 | #if EV_VERIFY |
2465 | int i; |
2871 | int i; |
2466 | WL w; |
2872 | WL w, w2; |
2467 | |
2873 | |
2468 | assert (activecnt >= -1); |
2874 | assert (activecnt >= -1); |
2469 | |
2875 | |
2470 | assert (fdchangemax >= fdchangecnt); |
2876 | assert (fdchangemax >= fdchangecnt); |
2471 | for (i = 0; i < fdchangecnt; ++i) |
2877 | for (i = 0; i < fdchangecnt; ++i) |
2472 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2878 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2473 | |
2879 | |
2474 | assert (anfdmax >= 0); |
2880 | assert (anfdmax >= 0); |
2475 | for (i = 0; i < anfdmax; ++i) |
2881 | for (i = 0; i < anfdmax; ++i) |
|
|
2882 | { |
|
|
2883 | int j = 0; |
|
|
2884 | |
2476 | for (w = anfds [i].head; w; w = w->next) |
2885 | for (w = w2 = anfds [i].head; w; w = w->next) |
2477 | { |
2886 | { |
2478 | verify_watcher (EV_A_ (W)w); |
2887 | verify_watcher (EV_A_ (W)w); |
|
|
2888 | |
|
|
2889 | if (j++ & 1) |
|
|
2890 | { |
|
|
2891 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2892 | w2 = w2->next; |
|
|
2893 | } |
|
|
2894 | |
2479 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2895 | 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)); |
2896 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2481 | } |
2897 | } |
|
|
2898 | } |
2482 | |
2899 | |
2483 | assert (timermax >= timercnt); |
2900 | assert (timermax >= timercnt); |
2484 | verify_heap (EV_A_ timers, timercnt); |
2901 | verify_heap (EV_A_ timers, timercnt); |
2485 | |
2902 | |
2486 | #if EV_PERIODIC_ENABLE |
2903 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2536 | #if EV_MULTIPLICITY |
2953 | #if EV_MULTIPLICITY |
2537 | struct ev_loop * ecb_cold |
2954 | struct ev_loop * ecb_cold |
2538 | #else |
2955 | #else |
2539 | int |
2956 | int |
2540 | #endif |
2957 | #endif |
2541 | ev_default_loop (unsigned int flags) |
2958 | ev_default_loop (unsigned int flags) EV_THROW |
2542 | { |
2959 | { |
2543 | if (!ev_default_loop_ptr) |
2960 | if (!ev_default_loop_ptr) |
2544 | { |
2961 | { |
2545 | #if EV_MULTIPLICITY |
2962 | #if EV_MULTIPLICITY |
2546 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2963 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2565 | |
2982 | |
2566 | return ev_default_loop_ptr; |
2983 | return ev_default_loop_ptr; |
2567 | } |
2984 | } |
2568 | |
2985 | |
2569 | void |
2986 | void |
2570 | ev_loop_fork (EV_P) |
2987 | ev_loop_fork (EV_P) EV_THROW |
2571 | { |
2988 | { |
2572 | postfork = 1; /* must be in line with ev_default_fork */ |
2989 | postfork = 1; |
2573 | } |
2990 | } |
2574 | |
2991 | |
2575 | /*****************************************************************************/ |
2992 | /*****************************************************************************/ |
2576 | |
2993 | |
2577 | void |
2994 | void |
… | |
… | |
2579 | { |
2996 | { |
2580 | EV_CB_INVOKE ((W)w, revents); |
2997 | EV_CB_INVOKE ((W)w, revents); |
2581 | } |
2998 | } |
2582 | |
2999 | |
2583 | unsigned int |
3000 | unsigned int |
2584 | ev_pending_count (EV_P) |
3001 | ev_pending_count (EV_P) EV_THROW |
2585 | { |
3002 | { |
2586 | int pri; |
3003 | int pri; |
2587 | unsigned int count = 0; |
3004 | unsigned int count = 0; |
2588 | |
3005 | |
2589 | for (pri = NUMPRI; pri--; ) |
3006 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2593 | } |
3010 | } |
2594 | |
3011 | |
2595 | void noinline |
3012 | void noinline |
2596 | ev_invoke_pending (EV_P) |
3013 | ev_invoke_pending (EV_P) |
2597 | { |
3014 | { |
2598 | int pri; |
3015 | pendingpri = NUMPRI; |
2599 | |
3016 | |
2600 | for (pri = NUMPRI; pri--; ) |
3017 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3018 | { |
|
|
3019 | --pendingpri; |
|
|
3020 | |
2601 | while (pendingcnt [pri]) |
3021 | while (pendingcnt [pendingpri]) |
2602 | { |
3022 | { |
2603 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3023 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2604 | |
3024 | |
2605 | p->w->pending = 0; |
3025 | p->w->pending = 0; |
2606 | EV_CB_INVOKE (p->w, p->events); |
3026 | EV_CB_INVOKE (p->w, p->events); |
2607 | EV_FREQUENT_CHECK; |
3027 | EV_FREQUENT_CHECK; |
2608 | } |
3028 | } |
|
|
3029 | } |
2609 | } |
3030 | } |
2610 | |
3031 | |
2611 | #if EV_IDLE_ENABLE |
3032 | #if EV_IDLE_ENABLE |
2612 | /* make idle watchers pending. this handles the "call-idle */ |
3033 | /* make idle watchers pending. this handles the "call-idle */ |
2613 | /* only when higher priorities are idle" logic */ |
3034 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2703 | { |
3124 | { |
2704 | EV_FREQUENT_CHECK; |
3125 | EV_FREQUENT_CHECK; |
2705 | |
3126 | |
2706 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3127 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2707 | { |
3128 | { |
2708 | int feed_count = 0; |
|
|
2709 | |
|
|
2710 | do |
3129 | do |
2711 | { |
3130 | { |
2712 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3131 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2713 | |
3132 | |
2714 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3133 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2848 | |
3267 | |
2849 | mn_now = ev_rt_now; |
3268 | mn_now = ev_rt_now; |
2850 | } |
3269 | } |
2851 | } |
3270 | } |
2852 | |
3271 | |
2853 | void |
3272 | int |
2854 | ev_run (EV_P_ int flags) |
3273 | ev_run (EV_P_ int flags) |
2855 | { |
3274 | { |
2856 | #if EV_FEATURE_API |
3275 | #if EV_FEATURE_API |
2857 | ++loop_depth; |
3276 | ++loop_depth; |
2858 | #endif |
3277 | #endif |
… | |
… | |
2971 | #endif |
3390 | #endif |
2972 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3391 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2973 | backend_poll (EV_A_ waittime); |
3392 | backend_poll (EV_A_ waittime); |
2974 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3393 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2975 | |
3394 | |
2976 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
3395 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
2977 | |
3396 | |
|
|
3397 | ECB_MEMORY_FENCE_ACQUIRE; |
2978 | if (pipe_write_skipped) |
3398 | if (pipe_write_skipped) |
2979 | { |
3399 | { |
2980 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3400 | 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); |
3401 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2982 | } |
3402 | } |
… | |
… | |
3015 | loop_done = EVBREAK_CANCEL; |
3435 | loop_done = EVBREAK_CANCEL; |
3016 | |
3436 | |
3017 | #if EV_FEATURE_API |
3437 | #if EV_FEATURE_API |
3018 | --loop_depth; |
3438 | --loop_depth; |
3019 | #endif |
3439 | #endif |
|
|
3440 | |
|
|
3441 | return activecnt; |
3020 | } |
3442 | } |
3021 | |
3443 | |
3022 | void |
3444 | void |
3023 | ev_break (EV_P_ int how) |
3445 | ev_break (EV_P_ int how) EV_THROW |
3024 | { |
3446 | { |
3025 | loop_done = how; |
3447 | loop_done = how; |
3026 | } |
3448 | } |
3027 | |
3449 | |
3028 | void |
3450 | void |
3029 | ev_ref (EV_P) |
3451 | ev_ref (EV_P) EV_THROW |
3030 | { |
3452 | { |
3031 | ++activecnt; |
3453 | ++activecnt; |
3032 | } |
3454 | } |
3033 | |
3455 | |
3034 | void |
3456 | void |
3035 | ev_unref (EV_P) |
3457 | ev_unref (EV_P) EV_THROW |
3036 | { |
3458 | { |
3037 | --activecnt; |
3459 | --activecnt; |
3038 | } |
3460 | } |
3039 | |
3461 | |
3040 | void |
3462 | void |
3041 | ev_now_update (EV_P) |
3463 | ev_now_update (EV_P) EV_THROW |
3042 | { |
3464 | { |
3043 | time_update (EV_A_ 1e100); |
3465 | time_update (EV_A_ 1e100); |
3044 | } |
3466 | } |
3045 | |
3467 | |
3046 | void |
3468 | void |
3047 | ev_suspend (EV_P) |
3469 | ev_suspend (EV_P) EV_THROW |
3048 | { |
3470 | { |
3049 | ev_now_update (EV_A); |
3471 | ev_now_update (EV_A); |
3050 | } |
3472 | } |
3051 | |
3473 | |
3052 | void |
3474 | void |
3053 | ev_resume (EV_P) |
3475 | ev_resume (EV_P) EV_THROW |
3054 | { |
3476 | { |
3055 | ev_tstamp mn_prev = mn_now; |
3477 | ev_tstamp mn_prev = mn_now; |
3056 | |
3478 | |
3057 | ev_now_update (EV_A); |
3479 | ev_now_update (EV_A); |
3058 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3480 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3097 | w->pending = 0; |
3519 | w->pending = 0; |
3098 | } |
3520 | } |
3099 | } |
3521 | } |
3100 | |
3522 | |
3101 | int |
3523 | int |
3102 | ev_clear_pending (EV_P_ void *w) |
3524 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3103 | { |
3525 | { |
3104 | W w_ = (W)w; |
3526 | W w_ = (W)w; |
3105 | int pending = w_->pending; |
3527 | int pending = w_->pending; |
3106 | |
3528 | |
3107 | if (expect_true (pending)) |
3529 | if (expect_true (pending)) |
… | |
… | |
3140 | } |
3562 | } |
3141 | |
3563 | |
3142 | /*****************************************************************************/ |
3564 | /*****************************************************************************/ |
3143 | |
3565 | |
3144 | void noinline |
3566 | void noinline |
3145 | ev_io_start (EV_P_ ev_io *w) |
3567 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3146 | { |
3568 | { |
3147 | int fd = w->fd; |
3569 | int fd = w->fd; |
3148 | |
3570 | |
3149 | if (expect_false (ev_is_active (w))) |
3571 | if (expect_false (ev_is_active (w))) |
3150 | return; |
3572 | return; |
… | |
… | |
3156 | |
3578 | |
3157 | ev_start (EV_A_ (W)w, 1); |
3579 | ev_start (EV_A_ (W)w, 1); |
3158 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3580 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3159 | wlist_add (&anfds[fd].head, (WL)w); |
3581 | wlist_add (&anfds[fd].head, (WL)w); |
3160 | |
3582 | |
|
|
3583 | /* common bug, apparently */ |
|
|
3584 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3585 | |
3161 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3586 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3162 | w->events &= ~EV__IOFDSET; |
3587 | w->events &= ~EV__IOFDSET; |
3163 | |
3588 | |
3164 | EV_FREQUENT_CHECK; |
3589 | EV_FREQUENT_CHECK; |
3165 | } |
3590 | } |
3166 | |
3591 | |
3167 | void noinline |
3592 | void noinline |
3168 | ev_io_stop (EV_P_ ev_io *w) |
3593 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3169 | { |
3594 | { |
3170 | clear_pending (EV_A_ (W)w); |
3595 | clear_pending (EV_A_ (W)w); |
3171 | if (expect_false (!ev_is_active (w))) |
3596 | if (expect_false (!ev_is_active (w))) |
3172 | return; |
3597 | return; |
3173 | |
3598 | |
… | |
… | |
3182 | |
3607 | |
3183 | EV_FREQUENT_CHECK; |
3608 | EV_FREQUENT_CHECK; |
3184 | } |
3609 | } |
3185 | |
3610 | |
3186 | void noinline |
3611 | void noinline |
3187 | ev_timer_start (EV_P_ ev_timer *w) |
3612 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3188 | { |
3613 | { |
3189 | if (expect_false (ev_is_active (w))) |
3614 | if (expect_false (ev_is_active (w))) |
3190 | return; |
3615 | return; |
3191 | |
3616 | |
3192 | ev_at (w) += mn_now; |
3617 | ev_at (w) += mn_now; |
… | |
… | |
3206 | |
3631 | |
3207 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3632 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3208 | } |
3633 | } |
3209 | |
3634 | |
3210 | void noinline |
3635 | void noinline |
3211 | ev_timer_stop (EV_P_ ev_timer *w) |
3636 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3212 | { |
3637 | { |
3213 | clear_pending (EV_A_ (W)w); |
3638 | clear_pending (EV_A_ (W)w); |
3214 | if (expect_false (!ev_is_active (w))) |
3639 | if (expect_false (!ev_is_active (w))) |
3215 | return; |
3640 | return; |
3216 | |
3641 | |
… | |
… | |
3236 | |
3661 | |
3237 | EV_FREQUENT_CHECK; |
3662 | EV_FREQUENT_CHECK; |
3238 | } |
3663 | } |
3239 | |
3664 | |
3240 | void noinline |
3665 | void noinline |
3241 | ev_timer_again (EV_P_ ev_timer *w) |
3666 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3242 | { |
3667 | { |
3243 | EV_FREQUENT_CHECK; |
3668 | EV_FREQUENT_CHECK; |
|
|
3669 | |
|
|
3670 | clear_pending (EV_A_ (W)w); |
3244 | |
3671 | |
3245 | if (ev_is_active (w)) |
3672 | if (ev_is_active (w)) |
3246 | { |
3673 | { |
3247 | if (w->repeat) |
3674 | if (w->repeat) |
3248 | { |
3675 | { |
… | |
… | |
3261 | |
3688 | |
3262 | EV_FREQUENT_CHECK; |
3689 | EV_FREQUENT_CHECK; |
3263 | } |
3690 | } |
3264 | |
3691 | |
3265 | ev_tstamp |
3692 | ev_tstamp |
3266 | ev_timer_remaining (EV_P_ ev_timer *w) |
3693 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
3267 | { |
3694 | { |
3268 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3695 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3269 | } |
3696 | } |
3270 | |
3697 | |
3271 | #if EV_PERIODIC_ENABLE |
3698 | #if EV_PERIODIC_ENABLE |
3272 | void noinline |
3699 | void noinline |
3273 | ev_periodic_start (EV_P_ ev_periodic *w) |
3700 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3274 | { |
3701 | { |
3275 | if (expect_false (ev_is_active (w))) |
3702 | if (expect_false (ev_is_active (w))) |
3276 | return; |
3703 | return; |
3277 | |
3704 | |
3278 | if (w->reschedule_cb) |
3705 | if (w->reschedule_cb) |
… | |
… | |
3298 | |
3725 | |
3299 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3726 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3300 | } |
3727 | } |
3301 | |
3728 | |
3302 | void noinline |
3729 | void noinline |
3303 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3730 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3304 | { |
3731 | { |
3305 | clear_pending (EV_A_ (W)w); |
3732 | clear_pending (EV_A_ (W)w); |
3306 | if (expect_false (!ev_is_active (w))) |
3733 | if (expect_false (!ev_is_active (w))) |
3307 | return; |
3734 | return; |
3308 | |
3735 | |
… | |
… | |
3326 | |
3753 | |
3327 | EV_FREQUENT_CHECK; |
3754 | EV_FREQUENT_CHECK; |
3328 | } |
3755 | } |
3329 | |
3756 | |
3330 | void noinline |
3757 | void noinline |
3331 | ev_periodic_again (EV_P_ ev_periodic *w) |
3758 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3332 | { |
3759 | { |
3333 | /* TODO: use adjustheap and recalculation */ |
3760 | /* TODO: use adjustheap and recalculation */ |
3334 | ev_periodic_stop (EV_A_ w); |
3761 | ev_periodic_stop (EV_A_ w); |
3335 | ev_periodic_start (EV_A_ w); |
3762 | ev_periodic_start (EV_A_ w); |
3336 | } |
3763 | } |
… | |
… | |
3341 | #endif |
3768 | #endif |
3342 | |
3769 | |
3343 | #if EV_SIGNAL_ENABLE |
3770 | #if EV_SIGNAL_ENABLE |
3344 | |
3771 | |
3345 | void noinline |
3772 | void noinline |
3346 | ev_signal_start (EV_P_ ev_signal *w) |
3773 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3347 | { |
3774 | { |
3348 | if (expect_false (ev_is_active (w))) |
3775 | if (expect_false (ev_is_active (w))) |
3349 | return; |
3776 | return; |
3350 | |
3777 | |
3351 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3778 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3353 | #if EV_MULTIPLICITY |
3780 | #if EV_MULTIPLICITY |
3354 | assert (("libev: a signal must not be attached to two different loops", |
3781 | assert (("libev: a signal must not be attached to two different loops", |
3355 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3782 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3356 | |
3783 | |
3357 | signals [w->signum - 1].loop = EV_A; |
3784 | signals [w->signum - 1].loop = EV_A; |
|
|
3785 | ECB_MEMORY_FENCE_RELEASE; |
3358 | #endif |
3786 | #endif |
3359 | |
3787 | |
3360 | EV_FREQUENT_CHECK; |
3788 | EV_FREQUENT_CHECK; |
3361 | |
3789 | |
3362 | #if EV_USE_SIGNALFD |
3790 | #if EV_USE_SIGNALFD |
… | |
… | |
3422 | |
3850 | |
3423 | EV_FREQUENT_CHECK; |
3851 | EV_FREQUENT_CHECK; |
3424 | } |
3852 | } |
3425 | |
3853 | |
3426 | void noinline |
3854 | void noinline |
3427 | ev_signal_stop (EV_P_ ev_signal *w) |
3855 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3428 | { |
3856 | { |
3429 | clear_pending (EV_A_ (W)w); |
3857 | clear_pending (EV_A_ (W)w); |
3430 | if (expect_false (!ev_is_active (w))) |
3858 | if (expect_false (!ev_is_active (w))) |
3431 | return; |
3859 | return; |
3432 | |
3860 | |
… | |
… | |
3463 | #endif |
3891 | #endif |
3464 | |
3892 | |
3465 | #if EV_CHILD_ENABLE |
3893 | #if EV_CHILD_ENABLE |
3466 | |
3894 | |
3467 | void |
3895 | void |
3468 | ev_child_start (EV_P_ ev_child *w) |
3896 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3469 | { |
3897 | { |
3470 | #if EV_MULTIPLICITY |
3898 | #if EV_MULTIPLICITY |
3471 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3899 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3472 | #endif |
3900 | #endif |
3473 | if (expect_false (ev_is_active (w))) |
3901 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3480 | |
3908 | |
3481 | EV_FREQUENT_CHECK; |
3909 | EV_FREQUENT_CHECK; |
3482 | } |
3910 | } |
3483 | |
3911 | |
3484 | void |
3912 | void |
3485 | ev_child_stop (EV_P_ ev_child *w) |
3913 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3486 | { |
3914 | { |
3487 | clear_pending (EV_A_ (W)w); |
3915 | clear_pending (EV_A_ (W)w); |
3488 | if (expect_false (!ev_is_active (w))) |
3916 | if (expect_false (!ev_is_active (w))) |
3489 | return; |
3917 | return; |
3490 | |
3918 | |
… | |
… | |
3517 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3945 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3518 | |
3946 | |
3519 | static void noinline |
3947 | static void noinline |
3520 | infy_add (EV_P_ ev_stat *w) |
3948 | infy_add (EV_P_ ev_stat *w) |
3521 | { |
3949 | { |
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); |
3950 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3951 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3952 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3953 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3523 | |
3954 | |
3524 | if (w->wd >= 0) |
3955 | if (w->wd >= 0) |
3525 | { |
3956 | { |
3526 | struct statfs sfs; |
3957 | struct statfs sfs; |
3527 | |
3958 | |
… | |
… | |
3531 | |
3962 | |
3532 | if (!fs_2625) |
3963 | if (!fs_2625) |
3533 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3964 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3534 | else if (!statfs (w->path, &sfs) |
3965 | else if (!statfs (w->path, &sfs) |
3535 | && (sfs.f_type == 0x1373 /* devfs */ |
3966 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3967 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3968 | || sfs.f_type == 0x4d44 /* msdos */ |
3536 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
3969 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3970 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3971 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3972 | || sfs.f_type == 0x5346544e /* ntfs */ |
3537 | || sfs.f_type == 0x3153464a /* jfs */ |
3973 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3974 | || sfs.f_type == 0x9123683e /* btrfs */ |
3538 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3975 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3539 | || sfs.f_type == 0x01021994 /* tempfs */ |
3976 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3540 | || sfs.f_type == 0x58465342 /* xfs */)) |
3977 | || sfs.f_type == 0x58465342 /* xfs */)) |
3541 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3978 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3542 | else |
3979 | else |
3543 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3980 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3544 | } |
3981 | } |
… | |
… | |
3657 | } |
4094 | } |
3658 | |
4095 | |
3659 | inline_size int |
4096 | inline_size int |
3660 | infy_newfd (void) |
4097 | infy_newfd (void) |
3661 | { |
4098 | { |
3662 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4099 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3663 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4100 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3664 | if (fd >= 0) |
4101 | if (fd >= 0) |
3665 | return fd; |
4102 | return fd; |
3666 | #endif |
4103 | #endif |
3667 | return inotify_init (); |
4104 | return inotify_init (); |
… | |
… | |
3742 | #else |
4179 | #else |
3743 | # define EV_LSTAT(p,b) lstat (p, b) |
4180 | # define EV_LSTAT(p,b) lstat (p, b) |
3744 | #endif |
4181 | #endif |
3745 | |
4182 | |
3746 | void |
4183 | void |
3747 | ev_stat_stat (EV_P_ ev_stat *w) |
4184 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3748 | { |
4185 | { |
3749 | if (lstat (w->path, &w->attr) < 0) |
4186 | if (lstat (w->path, &w->attr) < 0) |
3750 | w->attr.st_nlink = 0; |
4187 | w->attr.st_nlink = 0; |
3751 | else if (!w->attr.st_nlink) |
4188 | else if (!w->attr.st_nlink) |
3752 | w->attr.st_nlink = 1; |
4189 | w->attr.st_nlink = 1; |
… | |
… | |
3791 | ev_feed_event (EV_A_ w, EV_STAT); |
4228 | ev_feed_event (EV_A_ w, EV_STAT); |
3792 | } |
4229 | } |
3793 | } |
4230 | } |
3794 | |
4231 | |
3795 | void |
4232 | void |
3796 | ev_stat_start (EV_P_ ev_stat *w) |
4233 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3797 | { |
4234 | { |
3798 | if (expect_false (ev_is_active (w))) |
4235 | if (expect_false (ev_is_active (w))) |
3799 | return; |
4236 | return; |
3800 | |
4237 | |
3801 | ev_stat_stat (EV_A_ w); |
4238 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3822 | |
4259 | |
3823 | EV_FREQUENT_CHECK; |
4260 | EV_FREQUENT_CHECK; |
3824 | } |
4261 | } |
3825 | |
4262 | |
3826 | void |
4263 | void |
3827 | ev_stat_stop (EV_P_ ev_stat *w) |
4264 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3828 | { |
4265 | { |
3829 | clear_pending (EV_A_ (W)w); |
4266 | clear_pending (EV_A_ (W)w); |
3830 | if (expect_false (!ev_is_active (w))) |
4267 | if (expect_false (!ev_is_active (w))) |
3831 | return; |
4268 | return; |
3832 | |
4269 | |
… | |
… | |
3848 | } |
4285 | } |
3849 | #endif |
4286 | #endif |
3850 | |
4287 | |
3851 | #if EV_IDLE_ENABLE |
4288 | #if EV_IDLE_ENABLE |
3852 | void |
4289 | void |
3853 | ev_idle_start (EV_P_ ev_idle *w) |
4290 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3854 | { |
4291 | { |
3855 | if (expect_false (ev_is_active (w))) |
4292 | if (expect_false (ev_is_active (w))) |
3856 | return; |
4293 | return; |
3857 | |
4294 | |
3858 | pri_adjust (EV_A_ (W)w); |
4295 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3871 | |
4308 | |
3872 | EV_FREQUENT_CHECK; |
4309 | EV_FREQUENT_CHECK; |
3873 | } |
4310 | } |
3874 | |
4311 | |
3875 | void |
4312 | void |
3876 | ev_idle_stop (EV_P_ ev_idle *w) |
4313 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3877 | { |
4314 | { |
3878 | clear_pending (EV_A_ (W)w); |
4315 | clear_pending (EV_A_ (W)w); |
3879 | if (expect_false (!ev_is_active (w))) |
4316 | if (expect_false (!ev_is_active (w))) |
3880 | return; |
4317 | return; |
3881 | |
4318 | |
… | |
… | |
3895 | } |
4332 | } |
3896 | #endif |
4333 | #endif |
3897 | |
4334 | |
3898 | #if EV_PREPARE_ENABLE |
4335 | #if EV_PREPARE_ENABLE |
3899 | void |
4336 | void |
3900 | ev_prepare_start (EV_P_ ev_prepare *w) |
4337 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3901 | { |
4338 | { |
3902 | if (expect_false (ev_is_active (w))) |
4339 | if (expect_false (ev_is_active (w))) |
3903 | return; |
4340 | return; |
3904 | |
4341 | |
3905 | EV_FREQUENT_CHECK; |
4342 | EV_FREQUENT_CHECK; |
… | |
… | |
3910 | |
4347 | |
3911 | EV_FREQUENT_CHECK; |
4348 | EV_FREQUENT_CHECK; |
3912 | } |
4349 | } |
3913 | |
4350 | |
3914 | void |
4351 | void |
3915 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4352 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3916 | { |
4353 | { |
3917 | clear_pending (EV_A_ (W)w); |
4354 | clear_pending (EV_A_ (W)w); |
3918 | if (expect_false (!ev_is_active (w))) |
4355 | if (expect_false (!ev_is_active (w))) |
3919 | return; |
4356 | return; |
3920 | |
4357 | |
… | |
… | |
3933 | } |
4370 | } |
3934 | #endif |
4371 | #endif |
3935 | |
4372 | |
3936 | #if EV_CHECK_ENABLE |
4373 | #if EV_CHECK_ENABLE |
3937 | void |
4374 | void |
3938 | ev_check_start (EV_P_ ev_check *w) |
4375 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3939 | { |
4376 | { |
3940 | if (expect_false (ev_is_active (w))) |
4377 | if (expect_false (ev_is_active (w))) |
3941 | return; |
4378 | return; |
3942 | |
4379 | |
3943 | EV_FREQUENT_CHECK; |
4380 | EV_FREQUENT_CHECK; |
… | |
… | |
3948 | |
4385 | |
3949 | EV_FREQUENT_CHECK; |
4386 | EV_FREQUENT_CHECK; |
3950 | } |
4387 | } |
3951 | |
4388 | |
3952 | void |
4389 | void |
3953 | ev_check_stop (EV_P_ ev_check *w) |
4390 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3954 | { |
4391 | { |
3955 | clear_pending (EV_A_ (W)w); |
4392 | clear_pending (EV_A_ (W)w); |
3956 | if (expect_false (!ev_is_active (w))) |
4393 | if (expect_false (!ev_is_active (w))) |
3957 | return; |
4394 | return; |
3958 | |
4395 | |
… | |
… | |
3971 | } |
4408 | } |
3972 | #endif |
4409 | #endif |
3973 | |
4410 | |
3974 | #if EV_EMBED_ENABLE |
4411 | #if EV_EMBED_ENABLE |
3975 | void noinline |
4412 | void noinline |
3976 | ev_embed_sweep (EV_P_ ev_embed *w) |
4413 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3977 | { |
4414 | { |
3978 | ev_run (w->other, EVRUN_NOWAIT); |
4415 | ev_run (w->other, EVRUN_NOWAIT); |
3979 | } |
4416 | } |
3980 | |
4417 | |
3981 | static void |
4418 | static void |
… | |
… | |
4029 | ev_idle_stop (EV_A_ idle); |
4466 | ev_idle_stop (EV_A_ idle); |
4030 | } |
4467 | } |
4031 | #endif |
4468 | #endif |
4032 | |
4469 | |
4033 | void |
4470 | void |
4034 | ev_embed_start (EV_P_ ev_embed *w) |
4471 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4035 | { |
4472 | { |
4036 | if (expect_false (ev_is_active (w))) |
4473 | if (expect_false (ev_is_active (w))) |
4037 | return; |
4474 | return; |
4038 | |
4475 | |
4039 | { |
4476 | { |
… | |
… | |
4060 | |
4497 | |
4061 | EV_FREQUENT_CHECK; |
4498 | EV_FREQUENT_CHECK; |
4062 | } |
4499 | } |
4063 | |
4500 | |
4064 | void |
4501 | void |
4065 | ev_embed_stop (EV_P_ ev_embed *w) |
4502 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4066 | { |
4503 | { |
4067 | clear_pending (EV_A_ (W)w); |
4504 | clear_pending (EV_A_ (W)w); |
4068 | if (expect_false (!ev_is_active (w))) |
4505 | if (expect_false (!ev_is_active (w))) |
4069 | return; |
4506 | return; |
4070 | |
4507 | |
… | |
… | |
4080 | } |
4517 | } |
4081 | #endif |
4518 | #endif |
4082 | |
4519 | |
4083 | #if EV_FORK_ENABLE |
4520 | #if EV_FORK_ENABLE |
4084 | void |
4521 | void |
4085 | ev_fork_start (EV_P_ ev_fork *w) |
4522 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4086 | { |
4523 | { |
4087 | if (expect_false (ev_is_active (w))) |
4524 | if (expect_false (ev_is_active (w))) |
4088 | return; |
4525 | return; |
4089 | |
4526 | |
4090 | EV_FREQUENT_CHECK; |
4527 | EV_FREQUENT_CHECK; |
… | |
… | |
4095 | |
4532 | |
4096 | EV_FREQUENT_CHECK; |
4533 | EV_FREQUENT_CHECK; |
4097 | } |
4534 | } |
4098 | |
4535 | |
4099 | void |
4536 | void |
4100 | ev_fork_stop (EV_P_ ev_fork *w) |
4537 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4101 | { |
4538 | { |
4102 | clear_pending (EV_A_ (W)w); |
4539 | clear_pending (EV_A_ (W)w); |
4103 | if (expect_false (!ev_is_active (w))) |
4540 | if (expect_false (!ev_is_active (w))) |
4104 | return; |
4541 | return; |
4105 | |
4542 | |
… | |
… | |
4118 | } |
4555 | } |
4119 | #endif |
4556 | #endif |
4120 | |
4557 | |
4121 | #if EV_CLEANUP_ENABLE |
4558 | #if EV_CLEANUP_ENABLE |
4122 | void |
4559 | void |
4123 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4560 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4124 | { |
4561 | { |
4125 | if (expect_false (ev_is_active (w))) |
4562 | if (expect_false (ev_is_active (w))) |
4126 | return; |
4563 | return; |
4127 | |
4564 | |
4128 | EV_FREQUENT_CHECK; |
4565 | EV_FREQUENT_CHECK; |
… | |
… | |
4135 | ev_unref (EV_A); |
4572 | ev_unref (EV_A); |
4136 | EV_FREQUENT_CHECK; |
4573 | EV_FREQUENT_CHECK; |
4137 | } |
4574 | } |
4138 | |
4575 | |
4139 | void |
4576 | void |
4140 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4577 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4141 | { |
4578 | { |
4142 | clear_pending (EV_A_ (W)w); |
4579 | clear_pending (EV_A_ (W)w); |
4143 | if (expect_false (!ev_is_active (w))) |
4580 | if (expect_false (!ev_is_active (w))) |
4144 | return; |
4581 | return; |
4145 | |
4582 | |
… | |
… | |
4159 | } |
4596 | } |
4160 | #endif |
4597 | #endif |
4161 | |
4598 | |
4162 | #if EV_ASYNC_ENABLE |
4599 | #if EV_ASYNC_ENABLE |
4163 | void |
4600 | void |
4164 | ev_async_start (EV_P_ ev_async *w) |
4601 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4165 | { |
4602 | { |
4166 | if (expect_false (ev_is_active (w))) |
4603 | if (expect_false (ev_is_active (w))) |
4167 | return; |
4604 | return; |
4168 | |
4605 | |
4169 | w->sent = 0; |
4606 | w->sent = 0; |
… | |
… | |
4178 | |
4615 | |
4179 | EV_FREQUENT_CHECK; |
4616 | EV_FREQUENT_CHECK; |
4180 | } |
4617 | } |
4181 | |
4618 | |
4182 | void |
4619 | void |
4183 | ev_async_stop (EV_P_ ev_async *w) |
4620 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4184 | { |
4621 | { |
4185 | clear_pending (EV_A_ (W)w); |
4622 | clear_pending (EV_A_ (W)w); |
4186 | if (expect_false (!ev_is_active (w))) |
4623 | if (expect_false (!ev_is_active (w))) |
4187 | return; |
4624 | return; |
4188 | |
4625 | |
… | |
… | |
4199 | |
4636 | |
4200 | EV_FREQUENT_CHECK; |
4637 | EV_FREQUENT_CHECK; |
4201 | } |
4638 | } |
4202 | |
4639 | |
4203 | void |
4640 | void |
4204 | ev_async_send (EV_P_ ev_async *w) |
4641 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
4205 | { |
4642 | { |
4206 | w->sent = 1; |
4643 | w->sent = 1; |
4207 | evpipe_write (EV_A_ &async_pending); |
4644 | evpipe_write (EV_A_ &async_pending); |
4208 | } |
4645 | } |
4209 | #endif |
4646 | #endif |
… | |
… | |
4246 | |
4683 | |
4247 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4684 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4248 | } |
4685 | } |
4249 | |
4686 | |
4250 | void |
4687 | void |
4251 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4688 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
4252 | { |
4689 | { |
4253 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4690 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4254 | |
4691 | |
4255 | if (expect_false (!once)) |
4692 | if (expect_false (!once)) |
4256 | { |
4693 | { |
… | |
… | |
4278 | |
4715 | |
4279 | /*****************************************************************************/ |
4716 | /*****************************************************************************/ |
4280 | |
4717 | |
4281 | #if EV_WALK_ENABLE |
4718 | #if EV_WALK_ENABLE |
4282 | void ecb_cold |
4719 | void ecb_cold |
4283 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4720 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
4284 | { |
4721 | { |
4285 | int i, j; |
4722 | int i, j; |
4286 | ev_watcher_list *wl, *wn; |
4723 | ev_watcher_list *wl, *wn; |
4287 | |
4724 | |
4288 | if (types & (EV_IO | EV_EMBED)) |
4725 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
4394 | |
4831 | |
4395 | #if EV_MULTIPLICITY |
4832 | #if EV_MULTIPLICITY |
4396 | #include "ev_wrap.h" |
4833 | #include "ev_wrap.h" |
4397 | #endif |
4834 | #endif |
4398 | |
4835 | |
4399 | EV_CPP(}) |
|
|
4400 | |
|
|