1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 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 | * |
… | |
… | |
115 | # else |
115 | # else |
116 | # undef EV_USE_EPOLL |
116 | # undef EV_USE_EPOLL |
117 | # define EV_USE_EPOLL 0 |
117 | # define EV_USE_EPOLL 0 |
118 | # endif |
118 | # endif |
119 | |
119 | |
|
|
120 | # if HAVE_LINUX_AIO_ABI_H |
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|
121 | # ifndef EV_USE_LINUXAIO |
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122 | # define EV_USE_LINUXAIO EV_FEATURE_BACKENDS |
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123 | # endif |
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124 | # else |
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125 | # undef EV_USE_LINUXAIO |
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126 | # define EV_USE_LINUXAIO 0 |
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127 | # endif |
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128 | |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
129 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
121 | # ifndef EV_USE_KQUEUE |
130 | # ifndef EV_USE_KQUEUE |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
131 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
123 | # endif |
132 | # endif |
124 | # else |
133 | # else |
… | |
… | |
162 | # define EV_USE_EVENTFD 0 |
171 | # define EV_USE_EVENTFD 0 |
163 | # endif |
172 | # endif |
164 | |
173 | |
165 | #endif |
174 | #endif |
166 | |
175 | |
|
|
176 | /* OS X, in its infinite idiocy, actually HARDCODES |
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|
177 | * a limit of 1024 into their select. Where people have brains, |
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178 | * OS X engineers apparently have a vacuum. Or maybe they were |
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|
179 | * ordered to have a vacuum, or they do anything for money. |
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|
180 | * This might help. Or not. |
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|
181 | * Note that this must be defined early, as other include files |
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182 | * will rely on this define as well. |
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183 | */ |
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|
184 | #define _DARWIN_UNLIMITED_SELECT 1 |
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|
185 | |
167 | #include <stdlib.h> |
186 | #include <stdlib.h> |
168 | #include <string.h> |
187 | #include <string.h> |
169 | #include <fcntl.h> |
188 | #include <fcntl.h> |
170 | #include <stddef.h> |
189 | #include <stddef.h> |
171 | |
190 | |
… | |
… | |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
227 | # ifndef EV_SELECT_IS_WINSOCKET |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
228 | # define EV_SELECT_IS_WINSOCKET 1 |
210 | # endif |
229 | # endif |
211 | # undef EV_AVOID_STDIO |
230 | # undef EV_AVOID_STDIO |
212 | #endif |
231 | #endif |
213 | |
|
|
214 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
215 | * a limit of 1024 into their select. Where people have brains, |
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216 | * OS X engineers apparently have a vacuum. Or maybe they were |
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|
217 | * ordered to have a vacuum, or they do anything for money. |
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218 | * This might help. Or not. |
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219 | */ |
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220 | #define _DARWIN_UNLIMITED_SELECT 1 |
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|
221 | |
232 | |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
233 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
223 | |
234 | |
224 | /* try to deduce the maximum number of signals on this platform */ |
235 | /* try to deduce the maximum number of signals on this platform */ |
225 | #if defined EV_NSIG |
236 | #if defined EV_NSIG |
… | |
… | |
313 | |
324 | |
314 | #ifndef EV_USE_PORT |
325 | #ifndef EV_USE_PORT |
315 | # define EV_USE_PORT 0 |
326 | # define EV_USE_PORT 0 |
316 | #endif |
327 | #endif |
317 | |
328 | |
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|
329 | #ifndef EV_USE_LINUXAIO |
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330 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
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331 | # define EV_USE_LINUXAIO 1 |
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332 | # else |
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333 | # define EV_USE_LINUXAIO 0 |
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334 | # endif |
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335 | #endif |
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336 | |
318 | #ifndef EV_USE_INOTIFY |
337 | #ifndef EV_USE_INOTIFY |
319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
338 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
320 | # define EV_USE_INOTIFY EV_FEATURE_OS |
339 | # define EV_USE_INOTIFY EV_FEATURE_OS |
321 | # else |
340 | # else |
322 | # define EV_USE_INOTIFY 0 |
341 | # define EV_USE_INOTIFY 0 |
… | |
… | |
363 | |
382 | |
364 | #ifndef EV_HEAP_CACHE_AT |
383 | #ifndef EV_HEAP_CACHE_AT |
365 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
384 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
366 | #endif |
385 | #endif |
367 | |
386 | |
368 | #ifdef ANDROID |
387 | #ifdef __ANDROID__ |
369 | /* supposedly, android doesn't typedef fd_mask */ |
388 | /* supposedly, android doesn't typedef fd_mask */ |
370 | # undef EV_USE_SELECT |
389 | # undef EV_USE_SELECT |
371 | # define EV_USE_SELECT 0 |
390 | # define EV_USE_SELECT 0 |
372 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
391 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
373 | # undef EV_USE_CLOCK_SYSCALL |
392 | # undef EV_USE_CLOCK_SYSCALL |
… | |
… | |
414 | |
433 | |
415 | #if !EV_USE_NANOSLEEP |
434 | #if !EV_USE_NANOSLEEP |
416 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
435 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
417 | # if !defined _WIN32 && !defined __hpux |
436 | # if !defined _WIN32 && !defined __hpux |
418 | # include <sys/select.h> |
437 | # include <sys/select.h> |
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|
438 | # endif |
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|
439 | #endif |
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440 | |
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|
441 | #if EV_USE_LINUXAIO |
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|
442 | # include <sys/syscall.h> |
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|
443 | # if !SYS_io_getevents || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */ |
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444 | # undef EV_USE_LINUXAIO |
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445 | # define EV_USE_LINUXAIO 0 |
419 | # endif |
446 | # endif |
420 | #endif |
447 | #endif |
421 | |
448 | |
422 | #if EV_USE_INOTIFY |
449 | #if EV_USE_INOTIFY |
423 | # include <sys/statfs.h> |
450 | # include <sys/statfs.h> |
… | |
… | |
491 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
518 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
492 | /* ECB.H BEGIN */ |
519 | /* ECB.H BEGIN */ |
493 | /* |
520 | /* |
494 | * libecb - http://software.schmorp.de/pkg/libecb |
521 | * libecb - http://software.schmorp.de/pkg/libecb |
495 | * |
522 | * |
496 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
523 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
497 | * Copyright (©) 2011 Emanuele Giaquinta |
524 | * Copyright (©) 2011 Emanuele Giaquinta |
498 | * All rights reserved. |
525 | * All rights reserved. |
499 | * |
526 | * |
500 | * Redistribution and use in source and binary forms, with or without modifica- |
527 | * Redistribution and use in source and binary forms, with or without modifica- |
501 | * tion, are permitted provided that the following conditions are met: |
528 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
532 | |
559 | |
533 | #ifndef ECB_H |
560 | #ifndef ECB_H |
534 | #define ECB_H |
561 | #define ECB_H |
535 | |
562 | |
536 | /* 16 bits major, 16 bits minor */ |
563 | /* 16 bits major, 16 bits minor */ |
537 | #define ECB_VERSION 0x00010003 |
564 | #define ECB_VERSION 0x00010006 |
538 | |
565 | |
539 | #ifdef _WIN32 |
566 | #ifdef _WIN32 |
540 | typedef signed char int8_t; |
567 | typedef signed char int8_t; |
541 | typedef unsigned char uint8_t; |
568 | typedef unsigned char uint8_t; |
542 | typedef signed short int16_t; |
569 | typedef signed short int16_t; |
… | |
… | |
559 | typedef uint32_t uintptr_t; |
586 | typedef uint32_t uintptr_t; |
560 | typedef int32_t intptr_t; |
587 | typedef int32_t intptr_t; |
561 | #endif |
588 | #endif |
562 | #else |
589 | #else |
563 | #include <inttypes.h> |
590 | #include <inttypes.h> |
564 | #if UINTMAX_MAX > 0xffffffffU |
591 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
565 | #define ECB_PTRSIZE 8 |
592 | #define ECB_PTRSIZE 8 |
566 | #else |
593 | #else |
567 | #define ECB_PTRSIZE 4 |
594 | #define ECB_PTRSIZE 4 |
568 | #endif |
595 | #endif |
569 | #endif |
596 | #endif |
570 | |
597 | |
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|
598 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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599 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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600 | |
571 | /* work around x32 idiocy by defining proper macros */ |
601 | /* work around x32 idiocy by defining proper macros */ |
572 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
602 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
573 | #if _ILP32 |
603 | #if _ILP32 |
574 | #define ECB_AMD64_X32 1 |
604 | #define ECB_AMD64_X32 1 |
575 | #else |
605 | #else |
576 | #define ECB_AMD64 1 |
606 | #define ECB_AMD64 1 |
577 | #endif |
607 | #endif |
… | |
… | |
582 | * causing enormous grief in return for some better fake benchmark numbers. |
612 | * causing enormous grief in return for some better fake benchmark numbers. |
583 | * or so. |
613 | * or so. |
584 | * we try to detect these and simply assume they are not gcc - if they have |
614 | * we try to detect these and simply assume they are not gcc - if they have |
585 | * an issue with that they should have done it right in the first place. |
615 | * an issue with that they should have done it right in the first place. |
586 | */ |
616 | */ |
587 | #ifndef ECB_GCC_VERSION |
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|
588 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
617 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
589 | #define ECB_GCC_VERSION(major,minor) 0 |
618 | #define ECB_GCC_VERSION(major,minor) 0 |
590 | #else |
619 | #else |
591 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
620 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
592 | #endif |
621 | #endif |
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622 | |
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623 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
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624 | |
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625 | #if __clang__ && defined __has_builtin |
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626 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
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627 | #else |
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628 | #define ECB_CLANG_BUILTIN(x) 0 |
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629 | #endif |
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630 | |
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631 | #if __clang__ && defined __has_extension |
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632 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
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633 | #else |
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634 | #define ECB_CLANG_EXTENSION(x) 0 |
593 | #endif |
635 | #endif |
594 | |
636 | |
595 | #define ECB_CPP (__cplusplus+0) |
637 | #define ECB_CPP (__cplusplus+0) |
596 | #define ECB_CPP11 (__cplusplus >= 201103L) |
638 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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639 | #define ECB_CPP14 (__cplusplus >= 201402L) |
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640 | #define ECB_CPP17 (__cplusplus >= 201703L) |
597 | |
641 | |
598 | #if ECB_CPP |
642 | #if ECB_CPP |
599 | #define ECB_C 0 |
643 | #define ECB_C 0 |
600 | #define ECB_STDC_VERSION 0 |
644 | #define ECB_STDC_VERSION 0 |
601 | #else |
645 | #else |
… | |
… | |
603 | #define ECB_STDC_VERSION __STDC_VERSION__ |
647 | #define ECB_STDC_VERSION __STDC_VERSION__ |
604 | #endif |
648 | #endif |
605 | |
649 | |
606 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
650 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
607 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
651 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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|
652 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
608 | |
653 | |
609 | #if ECB_CPP |
654 | #if ECB_CPP |
610 | #define ECB_EXTERN_C extern "C" |
655 | #define ECB_EXTERN_C extern "C" |
611 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
656 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
612 | #define ECB_EXTERN_C_END } |
657 | #define ECB_EXTERN_C_END } |
… | |
… | |
627 | |
672 | |
628 | #if ECB_NO_SMP |
673 | #if ECB_NO_SMP |
629 | #define ECB_MEMORY_FENCE do { } while (0) |
674 | #define ECB_MEMORY_FENCE do { } while (0) |
630 | #endif |
675 | #endif |
631 | |
676 | |
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677 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
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678 | #if __xlC__ && ECB_CPP |
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679 | #include <builtins.h> |
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680 | #endif |
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681 | |
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682 | #if 1400 <= _MSC_VER |
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683 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
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684 | #endif |
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685 | |
632 | #ifndef ECB_MEMORY_FENCE |
686 | #ifndef ECB_MEMORY_FENCE |
633 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
687 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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688 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
634 | #if __i386 || __i386__ |
689 | #if __i386 || __i386__ |
635 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
690 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
636 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
691 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
637 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
692 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
638 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
693 | #elif ECB_GCC_AMD64 |
639 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
694 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
640 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
695 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
641 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
696 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
642 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
697 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
643 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
698 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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|
699 | #elif defined __ARM_ARCH_2__ \ |
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|
700 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
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|
701 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
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|
702 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
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|
703 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
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704 | || defined __ARM_ARCH_5TEJ__ |
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705 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
644 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
706 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
645 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
707 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
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|
708 | || defined __ARM_ARCH_6T2__ |
646 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
709 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
647 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
710 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
648 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
711 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
649 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
712 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
650 | #elif __aarch64__ |
713 | #elif __aarch64__ |
651 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
714 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
652 | #elif (__sparc || __sparc__) && !__sparcv8 |
715 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
653 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
716 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
654 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
717 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
655 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
718 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
656 | #elif defined __s390__ || defined __s390x__ |
719 | #elif defined __s390__ || defined __s390x__ |
657 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
720 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
… | |
… | |
680 | #if ECB_GCC_VERSION(4,7) |
743 | #if ECB_GCC_VERSION(4,7) |
681 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
744 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
682 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
745 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
683 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
746 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
684 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
747 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
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|
748 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
685 | |
749 | |
686 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
750 | #elif ECB_CLANG_EXTENSION(c_atomic) |
687 | * without risking compile time errors with other compilers. We *could* |
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|
688 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
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689 | * around this shit time and again. |
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|
690 | * #elif defined __clang && __has_feature (cxx_atomic) |
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691 | * // see comment below (stdatomic.h) about the C11 memory model. |
751 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
692 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
752 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
693 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
753 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
694 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
754 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
695 | */ |
755 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
696 | |
756 | |
697 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
757 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
698 | #define ECB_MEMORY_FENCE __sync_synchronize () |
758 | #define ECB_MEMORY_FENCE __sync_synchronize () |
699 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
759 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
700 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
760 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
… | |
… | |
710 | #elif defined _WIN32 |
770 | #elif defined _WIN32 |
711 | #include <WinNT.h> |
771 | #include <WinNT.h> |
712 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
772 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
713 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
773 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
714 | #include <mbarrier.h> |
774 | #include <mbarrier.h> |
715 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
775 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
716 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
776 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
717 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
777 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
778 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
718 | #elif __xlC__ |
779 | #elif __xlC__ |
719 | #define ECB_MEMORY_FENCE __sync () |
780 | #define ECB_MEMORY_FENCE __sync () |
720 | #endif |
781 | #endif |
721 | #endif |
782 | #endif |
722 | |
783 | |
723 | #ifndef ECB_MEMORY_FENCE |
784 | #ifndef ECB_MEMORY_FENCE |
724 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
785 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
725 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
786 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
726 | /* not just C11 atomics and atomic accesses */ |
787 | /* not just C11 atomics and atomic accesses */ |
727 | #include <stdatomic.h> |
788 | #include <stdatomic.h> |
728 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
729 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
730 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
731 | /* for most usages, or gcc and clang have a bug */ |
|
|
732 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
733 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
734 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
735 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
736 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
789 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
790 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
791 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
737 | #endif |
792 | #endif |
738 | #endif |
793 | #endif |
739 | |
794 | |
740 | #ifndef ECB_MEMORY_FENCE |
795 | #ifndef ECB_MEMORY_FENCE |
741 | #if !ECB_AVOID_PTHREADS |
796 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
761 | |
816 | |
762 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
817 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
763 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
818 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
764 | #endif |
819 | #endif |
765 | |
820 | |
|
|
821 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
822 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
823 | #endif |
|
|
824 | |
766 | /*****************************************************************************/ |
825 | /*****************************************************************************/ |
767 | |
826 | |
768 | #if __cplusplus |
827 | #if ECB_CPP |
769 | #define ecb_inline static inline |
828 | #define ecb_inline static inline |
770 | #elif ECB_GCC_VERSION(2,5) |
829 | #elif ECB_GCC_VERSION(2,5) |
771 | #define ecb_inline static __inline__ |
830 | #define ecb_inline static __inline__ |
772 | #elif ECB_C99 |
831 | #elif ECB_C99 |
773 | #define ecb_inline static inline |
832 | #define ecb_inline static inline |
… | |
… | |
787 | |
846 | |
788 | #define ECB_CONCAT_(a, b) a ## b |
847 | #define ECB_CONCAT_(a, b) a ## b |
789 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
848 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
790 | #define ECB_STRINGIFY_(a) # a |
849 | #define ECB_STRINGIFY_(a) # a |
791 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
850 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
851 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
792 | |
852 | |
793 | #define ecb_function_ ecb_inline |
853 | #define ecb_function_ ecb_inline |
794 | |
854 | |
795 | #if ECB_GCC_VERSION(3,1) |
855 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
796 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
856 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
857 | #else |
|
|
858 | #define ecb_attribute(attrlist) |
|
|
859 | #endif |
|
|
860 | |
|
|
861 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
797 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
862 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
798 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
799 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
800 | #else |
863 | #else |
801 | #define ecb_attribute(attrlist) |
|
|
802 | |
|
|
803 | /* possible C11 impl for integral types |
864 | /* possible C11 impl for integral types |
804 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
865 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
805 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
866 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
806 | |
867 | |
807 | #define ecb_is_constant(expr) 0 |
868 | #define ecb_is_constant(expr) 0 |
|
|
869 | #endif |
|
|
870 | |
|
|
871 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
872 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
873 | #else |
808 | #define ecb_expect(expr,value) (expr) |
874 | #define ecb_expect(expr,value) (expr) |
|
|
875 | #endif |
|
|
876 | |
|
|
877 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
878 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
879 | #else |
809 | #define ecb_prefetch(addr,rw,locality) |
880 | #define ecb_prefetch(addr,rw,locality) |
810 | #endif |
881 | #endif |
811 | |
882 | |
812 | /* no emulation for ecb_decltype */ |
883 | /* no emulation for ecb_decltype */ |
813 | #if ECB_GCC_VERSION(4,5) |
884 | #if ECB_CPP11 |
|
|
885 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
886 | template<class T> struct ecb_decltype_t { typedef T type; }; |
814 | #define ecb_decltype(x) __decltype(x) |
887 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
815 | #elif ECB_GCC_VERSION(3,0) |
888 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
816 | #define ecb_decltype(x) __typeof(x) |
889 | #define ecb_decltype(x) __typeof__ (x) |
817 | #endif |
890 | #endif |
818 | |
891 | |
819 | #if _MSC_VER >= 1300 |
892 | #if _MSC_VER >= 1300 |
820 | #define ecb_deprecated __declspec(deprecated) |
893 | #define ecb_deprecated __declspec (deprecated) |
821 | #else |
894 | #else |
822 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
895 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
823 | #endif |
896 | #endif |
824 | |
897 | |
|
|
898 | #if _MSC_VER >= 1500 |
|
|
899 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
900 | #elif ECB_GCC_VERSION(4,5) |
|
|
901 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
902 | #else |
|
|
903 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | #if _MSC_VER >= 1400 |
|
|
907 | #define ecb_noinline __declspec (noinline) |
|
|
908 | #else |
825 | #define ecb_noinline ecb_attribute ((__noinline__)) |
909 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
910 | #endif |
|
|
911 | |
826 | #define ecb_unused ecb_attribute ((__unused__)) |
912 | #define ecb_unused ecb_attribute ((__unused__)) |
827 | #define ecb_const ecb_attribute ((__const__)) |
913 | #define ecb_const ecb_attribute ((__const__)) |
828 | #define ecb_pure ecb_attribute ((__pure__)) |
914 | #define ecb_pure ecb_attribute ((__pure__)) |
829 | |
915 | |
830 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ |
916 | #if ECB_C11 || __IBMC_NORETURN |
831 | #if ECB_C11 |
917 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
832 | #define ecb_noreturn _Noreturn |
918 | #define ecb_noreturn _Noreturn |
|
|
919 | #elif ECB_CPP11 |
|
|
920 | #define ecb_noreturn [[noreturn]] |
|
|
921 | #elif _MSC_VER >= 1200 |
|
|
922 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
923 | #define ecb_noreturn __declspec (noreturn) |
833 | #else |
924 | #else |
834 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
925 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
835 | #endif |
926 | #endif |
836 | |
927 | |
837 | #if ECB_GCC_VERSION(4,3) |
928 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
852 | /* for compatibility to the rest of the world */ |
943 | /* for compatibility to the rest of the world */ |
853 | #define ecb_likely(expr) ecb_expect_true (expr) |
944 | #define ecb_likely(expr) ecb_expect_true (expr) |
854 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
945 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
855 | |
946 | |
856 | /* count trailing zero bits and count # of one bits */ |
947 | /* count trailing zero bits and count # of one bits */ |
857 | #if ECB_GCC_VERSION(3,4) |
948 | #if ECB_GCC_VERSION(3,4) \ |
|
|
949 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
950 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
951 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
858 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
952 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
859 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
953 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
860 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
954 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
861 | #define ecb_ctz32(x) __builtin_ctz (x) |
955 | #define ecb_ctz32(x) __builtin_ctz (x) |
862 | #define ecb_ctz64(x) __builtin_ctzll (x) |
956 | #define ecb_ctz64(x) __builtin_ctzll (x) |
863 | #define ecb_popcount32(x) __builtin_popcount (x) |
957 | #define ecb_popcount32(x) __builtin_popcount (x) |
864 | /* no popcountll */ |
958 | /* no popcountll */ |
865 | #else |
959 | #else |
866 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
960 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
867 | ecb_function_ int |
961 | ecb_function_ ecb_const int |
868 | ecb_ctz32 (uint32_t x) |
962 | ecb_ctz32 (uint32_t x) |
869 | { |
963 | { |
|
|
964 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
965 | unsigned long r; |
|
|
966 | _BitScanForward (&r, x); |
|
|
967 | return (int)r; |
|
|
968 | #else |
870 | int r = 0; |
969 | int r = 0; |
871 | |
970 | |
872 | x &= ~x + 1; /* this isolates the lowest bit */ |
971 | x &= ~x + 1; /* this isolates the lowest bit */ |
873 | |
972 | |
874 | #if ECB_branchless_on_i386 |
973 | #if ECB_branchless_on_i386 |
… | |
… | |
884 | if (x & 0xff00ff00) r += 8; |
983 | if (x & 0xff00ff00) r += 8; |
885 | if (x & 0xffff0000) r += 16; |
984 | if (x & 0xffff0000) r += 16; |
886 | #endif |
985 | #endif |
887 | |
986 | |
888 | return r; |
987 | return r; |
|
|
988 | #endif |
889 | } |
989 | } |
890 | |
990 | |
891 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
991 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
892 | ecb_function_ int |
992 | ecb_function_ ecb_const int |
893 | ecb_ctz64 (uint64_t x) |
993 | ecb_ctz64 (uint64_t x) |
894 | { |
994 | { |
|
|
995 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
996 | unsigned long r; |
|
|
997 | _BitScanForward64 (&r, x); |
|
|
998 | return (int)r; |
|
|
999 | #else |
895 | int shift = x & 0xffffffffU ? 0 : 32; |
1000 | int shift = x & 0xffffffff ? 0 : 32; |
896 | return ecb_ctz32 (x >> shift) + shift; |
1001 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1002 | #endif |
897 | } |
1003 | } |
898 | |
1004 | |
899 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1005 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
900 | ecb_function_ int |
1006 | ecb_function_ ecb_const int |
901 | ecb_popcount32 (uint32_t x) |
1007 | ecb_popcount32 (uint32_t x) |
902 | { |
1008 | { |
903 | x -= (x >> 1) & 0x55555555; |
1009 | x -= (x >> 1) & 0x55555555; |
904 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1010 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
905 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1011 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
906 | x *= 0x01010101; |
1012 | x *= 0x01010101; |
907 | |
1013 | |
908 | return x >> 24; |
1014 | return x >> 24; |
909 | } |
1015 | } |
910 | |
1016 | |
911 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1017 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
912 | ecb_function_ int ecb_ld32 (uint32_t x) |
1018 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
913 | { |
1019 | { |
|
|
1020 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1021 | unsigned long r; |
|
|
1022 | _BitScanReverse (&r, x); |
|
|
1023 | return (int)r; |
|
|
1024 | #else |
914 | int r = 0; |
1025 | int r = 0; |
915 | |
1026 | |
916 | if (x >> 16) { x >>= 16; r += 16; } |
1027 | if (x >> 16) { x >>= 16; r += 16; } |
917 | if (x >> 8) { x >>= 8; r += 8; } |
1028 | if (x >> 8) { x >>= 8; r += 8; } |
918 | if (x >> 4) { x >>= 4; r += 4; } |
1029 | if (x >> 4) { x >>= 4; r += 4; } |
919 | if (x >> 2) { x >>= 2; r += 2; } |
1030 | if (x >> 2) { x >>= 2; r += 2; } |
920 | if (x >> 1) { r += 1; } |
1031 | if (x >> 1) { r += 1; } |
921 | |
1032 | |
922 | return r; |
1033 | return r; |
|
|
1034 | #endif |
923 | } |
1035 | } |
924 | |
1036 | |
925 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1037 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
926 | ecb_function_ int ecb_ld64 (uint64_t x) |
1038 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
927 | { |
1039 | { |
|
|
1040 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1041 | unsigned long r; |
|
|
1042 | _BitScanReverse64 (&r, x); |
|
|
1043 | return (int)r; |
|
|
1044 | #else |
928 | int r = 0; |
1045 | int r = 0; |
929 | |
1046 | |
930 | if (x >> 32) { x >>= 32; r += 32; } |
1047 | if (x >> 32) { x >>= 32; r += 32; } |
931 | |
1048 | |
932 | return r + ecb_ld32 (x); |
1049 | return r + ecb_ld32 (x); |
|
|
1050 | #endif |
933 | } |
1051 | } |
934 | #endif |
1052 | #endif |
935 | |
1053 | |
936 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1054 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
937 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1055 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
938 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1056 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
939 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1057 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
940 | |
1058 | |
941 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1059 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
942 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1060 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
943 | { |
1061 | { |
944 | return ( (x * 0x0802U & 0x22110U) |
1062 | return ( (x * 0x0802U & 0x22110U) |
945 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1063 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
946 | } |
1064 | } |
947 | |
1065 | |
948 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1066 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
949 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1067 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
950 | { |
1068 | { |
951 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1069 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
952 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1070 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
953 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1071 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
954 | x = ( x >> 8 ) | ( x << 8); |
1072 | x = ( x >> 8 ) | ( x << 8); |
955 | |
1073 | |
956 | return x; |
1074 | return x; |
957 | } |
1075 | } |
958 | |
1076 | |
959 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1077 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
960 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1078 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
961 | { |
1079 | { |
962 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1080 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
963 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1081 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
964 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1082 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
965 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1083 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
968 | return x; |
1086 | return x; |
969 | } |
1087 | } |
970 | |
1088 | |
971 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1089 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
972 | /* so for this version we are lazy */ |
1090 | /* so for this version we are lazy */ |
973 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1091 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
974 | ecb_function_ int |
1092 | ecb_function_ ecb_const int |
975 | ecb_popcount64 (uint64_t x) |
1093 | ecb_popcount64 (uint64_t x) |
976 | { |
1094 | { |
977 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1095 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
978 | } |
1096 | } |
979 | |
1097 | |
980 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1098 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
981 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1099 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
982 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1100 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
983 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1101 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
984 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1102 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
985 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1103 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
986 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1104 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
987 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1105 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
988 | |
1106 | |
989 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1107 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
990 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1108 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
991 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1109 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
992 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1110 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
993 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1111 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
994 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1112 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
995 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1113 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
996 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1114 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
997 | |
1115 | |
998 | #if ECB_GCC_VERSION(4,3) |
1116 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1117 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1118 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1119 | #else |
999 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1120 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1121 | #endif |
1000 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1122 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1001 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1123 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1124 | #elif _MSC_VER |
|
|
1125 | #include <stdlib.h> |
|
|
1126 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1127 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1128 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
1002 | #else |
1129 | #else |
1003 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1130 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
1004 | ecb_function_ uint16_t |
1131 | ecb_function_ ecb_const uint16_t |
1005 | ecb_bswap16 (uint16_t x) |
1132 | ecb_bswap16 (uint16_t x) |
1006 | { |
1133 | { |
1007 | return ecb_rotl16 (x, 8); |
1134 | return ecb_rotl16 (x, 8); |
1008 | } |
1135 | } |
1009 | |
1136 | |
1010 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1137 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
1011 | ecb_function_ uint32_t |
1138 | ecb_function_ ecb_const uint32_t |
1012 | ecb_bswap32 (uint32_t x) |
1139 | ecb_bswap32 (uint32_t x) |
1013 | { |
1140 | { |
1014 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1141 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1015 | } |
1142 | } |
1016 | |
1143 | |
1017 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1144 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
1018 | ecb_function_ uint64_t |
1145 | ecb_function_ ecb_const uint64_t |
1019 | ecb_bswap64 (uint64_t x) |
1146 | ecb_bswap64 (uint64_t x) |
1020 | { |
1147 | { |
1021 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1148 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1022 | } |
1149 | } |
1023 | #endif |
1150 | #endif |
1024 | |
1151 | |
1025 | #if ECB_GCC_VERSION(4,5) |
1152 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
1026 | #define ecb_unreachable() __builtin_unreachable () |
1153 | #define ecb_unreachable() __builtin_unreachable () |
1027 | #else |
1154 | #else |
1028 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1155 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1029 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1156 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
1030 | ecb_inline void ecb_unreachable (void) { } |
1157 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
1031 | #endif |
1158 | #endif |
1032 | |
1159 | |
1033 | /* try to tell the compiler that some condition is definitely true */ |
1160 | /* try to tell the compiler that some condition is definitely true */ |
1034 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1161 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1035 | |
1162 | |
1036 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1163 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
1037 | ecb_inline unsigned char |
1164 | ecb_inline ecb_const uint32_t |
1038 | ecb_byteorder_helper (void) |
1165 | ecb_byteorder_helper (void) |
1039 | { |
1166 | { |
1040 | /* the union code still generates code under pressure in gcc, */ |
1167 | /* the union code still generates code under pressure in gcc, */ |
1041 | /* but less than using pointers, and always seems to */ |
1168 | /* but less than using pointers, and always seems to */ |
1042 | /* successfully return a constant. */ |
1169 | /* successfully return a constant. */ |
1043 | /* the reason why we have this horrible preprocessor mess */ |
1170 | /* the reason why we have this horrible preprocessor mess */ |
1044 | /* is to avoid it in all cases, at least on common architectures */ |
1171 | /* is to avoid it in all cases, at least on common architectures */ |
1045 | /* or when using a recent enough gcc version (>= 4.6) */ |
1172 | /* or when using a recent enough gcc version (>= 4.6) */ |
1046 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
1047 | return 0x44; |
|
|
1048 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
1173 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1174 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1175 | #define ECB_LITTLE_ENDIAN 1 |
1049 | return 0x44; |
1176 | return 0x44332211; |
1050 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1177 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1178 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1179 | #define ECB_BIG_ENDIAN 1 |
1051 | return 0x11; |
1180 | return 0x11223344; |
1052 | #else |
1181 | #else |
1053 | union |
1182 | union |
1054 | { |
1183 | { |
|
|
1184 | uint8_t c[4]; |
1055 | uint32_t i; |
1185 | uint32_t u; |
1056 | uint8_t c; |
|
|
1057 | } u = { 0x11223344 }; |
1186 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
1058 | return u.c; |
1187 | return u.u; |
1059 | #endif |
1188 | #endif |
1060 | } |
1189 | } |
1061 | |
1190 | |
1062 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1191 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
1063 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1192 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
1064 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1193 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
1065 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1194 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
1066 | |
1195 | |
1067 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1196 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1068 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1197 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1069 | #else |
1198 | #else |
1070 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1199 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1071 | #endif |
1200 | #endif |
1072 | |
1201 | |
1073 | #if __cplusplus |
1202 | #if ECB_CPP |
1074 | template<typename T> |
1203 | template<typename T> |
1075 | static inline T ecb_div_rd (T val, T div) |
1204 | static inline T ecb_div_rd (T val, T div) |
1076 | { |
1205 | { |
1077 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1206 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1078 | } |
1207 | } |
… | |
… | |
1095 | } |
1224 | } |
1096 | #else |
1225 | #else |
1097 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1226 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1098 | #endif |
1227 | #endif |
1099 | |
1228 | |
|
|
1229 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1230 | ecb_function_ ecb_const uint32_t |
|
|
1231 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1232 | { |
|
|
1233 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1234 | int e = (x >> 10) & 0x001f; |
|
|
1235 | unsigned int m = x & 0x03ff; |
|
|
1236 | |
|
|
1237 | if (ecb_expect_false (e == 31)) |
|
|
1238 | /* infinity or NaN */ |
|
|
1239 | e = 255 - (127 - 15); |
|
|
1240 | else if (ecb_expect_false (!e)) |
|
|
1241 | { |
|
|
1242 | if (ecb_expect_true (!m)) |
|
|
1243 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1244 | e = 0 - (127 - 15); |
|
|
1245 | else |
|
|
1246 | { |
|
|
1247 | /* subnormal, renormalise */ |
|
|
1248 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1249 | |
|
|
1250 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1251 | e -= s - 1; |
|
|
1252 | } |
|
|
1253 | } |
|
|
1254 | |
|
|
1255 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1256 | e += 127 - 15; |
|
|
1257 | |
|
|
1258 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1262 | ecb_function_ ecb_const uint16_t |
|
|
1263 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1264 | { |
|
|
1265 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1266 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1267 | unsigned int m = x & 0x007fffff; |
|
|
1268 | |
|
|
1269 | x &= 0x7fffffff; |
|
|
1270 | |
|
|
1271 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1272 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1273 | { |
|
|
1274 | /* mantissa round-to-even */ |
|
|
1275 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1276 | |
|
|
1277 | /* handle overflow */ |
|
|
1278 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1279 | { |
|
|
1280 | m >>= 1; |
|
|
1281 | e += 1; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1285 | } |
|
|
1286 | |
|
|
1287 | /* handle large numbers and infinity */ |
|
|
1288 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1289 | return s | 0x7c00; |
|
|
1290 | |
|
|
1291 | /* handle zero, subnormals and small numbers */ |
|
|
1292 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1293 | { |
|
|
1294 | /* zero */ |
|
|
1295 | if (ecb_expect_true (!x)) |
|
|
1296 | return s; |
|
|
1297 | |
|
|
1298 | /* handle subnormals */ |
|
|
1299 | |
|
|
1300 | /* too small, will be zero */ |
|
|
1301 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1302 | return s; |
|
|
1303 | |
|
|
1304 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1305 | |
|
|
1306 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1307 | { |
|
|
1308 | unsigned int bits = 14 - e; |
|
|
1309 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1310 | unsigned int even = (m >> bits) & 1; |
|
|
1311 | |
|
|
1312 | /* if this overflows, we will end up with a normalised number */ |
|
|
1313 | m = (m + half + even) >> bits; |
|
|
1314 | } |
|
|
1315 | |
|
|
1316 | return s | m; |
|
|
1317 | } |
|
|
1318 | |
|
|
1319 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1320 | m >>= 13; |
|
|
1321 | |
|
|
1322 | return s | 0x7c00 | m | !m; |
|
|
1323 | } |
|
|
1324 | |
1100 | /*******************************************************************************/ |
1325 | /*******************************************************************************/ |
1101 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1326 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1102 | |
1327 | |
1103 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1328 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1104 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1329 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1105 | #if 0 \ |
1330 | #if 0 \ |
1106 | || __i386 || __i386__ \ |
1331 | || __i386 || __i386__ \ |
1107 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1332 | || ECB_GCC_AMD64 \ |
1108 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1333 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1109 | || defined __s390__ || defined __s390x__ \ |
1334 | || defined __s390__ || defined __s390x__ \ |
1110 | || defined __mips__ \ |
1335 | || defined __mips__ \ |
1111 | || defined __alpha__ \ |
1336 | || defined __alpha__ \ |
1112 | || defined __hppa__ \ |
1337 | || defined __hppa__ \ |
1113 | || defined __ia64__ \ |
1338 | || defined __ia64__ \ |
1114 | || defined __m68k__ \ |
1339 | || defined __m68k__ \ |
1115 | || defined __m88k__ \ |
1340 | || defined __m88k__ \ |
1116 | || defined __sh__ \ |
1341 | || defined __sh__ \ |
1117 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
1342 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
1118 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1343 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1119 | || defined __aarch64__ |
1344 | || defined __aarch64__ |
1120 | #define ECB_STDFP 1 |
1345 | #define ECB_STDFP 1 |
1121 | #include <string.h> /* for memcpy */ |
1346 | #include <string.h> /* for memcpy */ |
1122 | #else |
1347 | #else |
… | |
… | |
1138 | #define ECB_NAN NAN |
1363 | #define ECB_NAN NAN |
1139 | #else |
1364 | #else |
1140 | #define ECB_NAN ECB_INFINITY |
1365 | #define ECB_NAN ECB_INFINITY |
1141 | #endif |
1366 | #endif |
1142 | |
1367 | |
1143 | /* converts an ieee half/binary16 to a float */ |
1368 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
1144 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
1369 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
1145 | ecb_function_ float |
1370 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
1146 | ecb_binary16_to_float (uint16_t x) |
1371 | #else |
1147 | { |
1372 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
1148 | int e = (x >> 10) & 0x1f; |
1373 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
1149 | int m = x & 0x3ff; |
1374 | #endif |
1150 | float r; |
|
|
1151 | |
|
|
1152 | if (!e ) r = ldexpf (m , -24); |
|
|
1153 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1154 | else if (m ) r = ECB_NAN; |
|
|
1155 | else r = ECB_INFINITY; |
|
|
1156 | |
|
|
1157 | return x & 0x8000 ? -r : r; |
|
|
1158 | } |
|
|
1159 | |
1375 | |
1160 | /* convert a float to ieee single/binary32 */ |
1376 | /* convert a float to ieee single/binary32 */ |
1161 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1377 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
1162 | ecb_function_ uint32_t |
1378 | ecb_function_ ecb_const uint32_t |
1163 | ecb_float_to_binary32 (float x) |
1379 | ecb_float_to_binary32 (float x) |
1164 | { |
1380 | { |
1165 | uint32_t r; |
1381 | uint32_t r; |
1166 | |
1382 | |
1167 | #if ECB_STDFP |
1383 | #if ECB_STDFP |
… | |
… | |
1174 | if (x == 0e0f ) return 0x00000000U; |
1390 | if (x == 0e0f ) return 0x00000000U; |
1175 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1391 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1176 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1392 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1177 | if (x != x ) return 0x7fbfffffU; |
1393 | if (x != x ) return 0x7fbfffffU; |
1178 | |
1394 | |
1179 | m = frexpf (x, &e) * 0x1000000U; |
1395 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1180 | |
1396 | |
1181 | r = m & 0x80000000U; |
1397 | r = m & 0x80000000U; |
1182 | |
1398 | |
1183 | if (r) |
1399 | if (r) |
1184 | m = -m; |
1400 | m = -m; |
… | |
… | |
1196 | |
1412 | |
1197 | return r; |
1413 | return r; |
1198 | } |
1414 | } |
1199 | |
1415 | |
1200 | /* converts an ieee single/binary32 to a float */ |
1416 | /* converts an ieee single/binary32 to a float */ |
1201 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
1417 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
1202 | ecb_function_ float |
1418 | ecb_function_ ecb_const float |
1203 | ecb_binary32_to_float (uint32_t x) |
1419 | ecb_binary32_to_float (uint32_t x) |
1204 | { |
1420 | { |
1205 | float r; |
1421 | float r; |
1206 | |
1422 | |
1207 | #if ECB_STDFP |
1423 | #if ECB_STDFP |
… | |
… | |
1217 | x |= 0x800000U; |
1433 | x |= 0x800000U; |
1218 | else |
1434 | else |
1219 | e = 1; |
1435 | e = 1; |
1220 | |
1436 | |
1221 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1437 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1222 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1438 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1223 | |
1439 | |
1224 | r = neg ? -r : r; |
1440 | r = neg ? -r : r; |
1225 | #endif |
1441 | #endif |
1226 | |
1442 | |
1227 | return r; |
1443 | return r; |
1228 | } |
1444 | } |
1229 | |
1445 | |
1230 | /* convert a double to ieee double/binary64 */ |
1446 | /* convert a double to ieee double/binary64 */ |
1231 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
1447 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
1232 | ecb_function_ uint64_t |
1448 | ecb_function_ ecb_const uint64_t |
1233 | ecb_double_to_binary64 (double x) |
1449 | ecb_double_to_binary64 (double x) |
1234 | { |
1450 | { |
1235 | uint64_t r; |
1451 | uint64_t r; |
1236 | |
1452 | |
1237 | #if ECB_STDFP |
1453 | #if ECB_STDFP |
… | |
… | |
1266 | |
1482 | |
1267 | return r; |
1483 | return r; |
1268 | } |
1484 | } |
1269 | |
1485 | |
1270 | /* converts an ieee double/binary64 to a double */ |
1486 | /* converts an ieee double/binary64 to a double */ |
1271 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
1487 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
1272 | ecb_function_ double |
1488 | ecb_function_ ecb_const double |
1273 | ecb_binary64_to_double (uint64_t x) |
1489 | ecb_binary64_to_double (uint64_t x) |
1274 | { |
1490 | { |
1275 | double r; |
1491 | double r; |
1276 | |
1492 | |
1277 | #if ECB_STDFP |
1493 | #if ECB_STDFP |
… | |
… | |
1295 | #endif |
1511 | #endif |
1296 | |
1512 | |
1297 | return r; |
1513 | return r; |
1298 | } |
1514 | } |
1299 | |
1515 | |
|
|
1516 | /* convert a float to ieee half/binary16 */ |
|
|
1517 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1518 | ecb_function_ ecb_const uint16_t |
|
|
1519 | ecb_float_to_binary16 (float x) |
|
|
1520 | { |
|
|
1521 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1522 | } |
|
|
1523 | |
|
|
1524 | /* convert an ieee half/binary16 to float */ |
|
|
1525 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1526 | ecb_function_ ecb_const float |
|
|
1527 | ecb_binary16_to_float (uint16_t x) |
|
|
1528 | { |
|
|
1529 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1530 | } |
|
|
1531 | |
1300 | #endif |
1532 | #endif |
1301 | |
1533 | |
1302 | #endif |
1534 | #endif |
1303 | |
1535 | |
1304 | /* ECB.H END */ |
1536 | /* ECB.H END */ |
1305 | |
1537 | |
1306 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1538 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1307 | /* if your architecture doesn't need memory fences, e.g. because it is |
1539 | /* if your architecture doesn't need memory fences, e.g. because it is |
1308 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1540 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1309 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1541 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
1310 | * libev, in which cases the memory fences become nops. |
1542 | * libev, in which cases the memory fences become nops. |
1311 | * alternatively, you can remove this #error and link against libpthread, |
1543 | * alternatively, you can remove this #error and link against libpthread, |
1312 | * which will then provide the memory fences. |
1544 | * which will then provide the memory fences. |
1313 | */ |
1545 | */ |
1314 | # error "memory fences not defined for your architecture, please report" |
1546 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
1318 | # define ECB_MEMORY_FENCE do { } while (0) |
1550 | # define ECB_MEMORY_FENCE do { } while (0) |
1319 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1551 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1320 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1552 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1321 | #endif |
1553 | #endif |
1322 | |
1554 | |
1323 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1324 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1325 | #define noinline ecb_noinline |
|
|
1326 | |
|
|
1327 | #define inline_size ecb_inline |
1555 | #define inline_size ecb_inline |
1328 | |
1556 | |
1329 | #if EV_FEATURE_CODE |
1557 | #if EV_FEATURE_CODE |
1330 | # define inline_speed ecb_inline |
1558 | # define inline_speed ecb_inline |
1331 | #else |
1559 | #else |
1332 | # define inline_speed static noinline |
1560 | # define inline_speed ecb_noinline static |
1333 | #endif |
1561 | #endif |
1334 | |
1562 | |
1335 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1563 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1336 | |
1564 | |
1337 | #if EV_MINPRI == EV_MAXPRI |
1565 | #if EV_MINPRI == EV_MAXPRI |
1338 | # define ABSPRI(w) (((W)w), 0) |
1566 | # define ABSPRI(w) (((W)w), 0) |
1339 | #else |
1567 | #else |
1340 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1568 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1341 | #endif |
1569 | #endif |
1342 | |
1570 | |
1343 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1571 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1344 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1345 | |
1572 | |
1346 | typedef ev_watcher *W; |
1573 | typedef ev_watcher *W; |
1347 | typedef ev_watcher_list *WL; |
1574 | typedef ev_watcher_list *WL; |
1348 | typedef ev_watcher_time *WT; |
1575 | typedef ev_watcher_time *WT; |
1349 | |
1576 | |
… | |
… | |
1374 | # include "ev_win32.c" |
1601 | # include "ev_win32.c" |
1375 | #endif |
1602 | #endif |
1376 | |
1603 | |
1377 | /*****************************************************************************/ |
1604 | /*****************************************************************************/ |
1378 | |
1605 | |
|
|
1606 | #if EV_USE_LINUXAIO |
|
|
1607 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1608 | #endif |
|
|
1609 | |
1379 | /* define a suitable floor function (only used by periodics atm) */ |
1610 | /* define a suitable floor function (only used by periodics atm) */ |
1380 | |
1611 | |
1381 | #if EV_USE_FLOOR |
1612 | #if EV_USE_FLOOR |
1382 | # include <math.h> |
1613 | # include <math.h> |
1383 | # define ev_floor(v) floor (v) |
1614 | # define ev_floor(v) floor (v) |
1384 | #else |
1615 | #else |
1385 | |
1616 | |
1386 | #include <float.h> |
1617 | #include <float.h> |
1387 | |
1618 | |
1388 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1619 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1620 | ecb_noinline |
1389 | static ev_tstamp noinline |
1621 | static ev_tstamp |
1390 | ev_floor (ev_tstamp v) |
1622 | ev_floor (ev_tstamp v) |
1391 | { |
1623 | { |
1392 | /* the choice of shift factor is not terribly important */ |
1624 | /* the choice of shift factor is not terribly important */ |
1393 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1625 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1394 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1626 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1395 | #else |
1627 | #else |
1396 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1628 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1397 | #endif |
1629 | #endif |
1398 | |
1630 | |
1399 | /* argument too large for an unsigned long? */ |
1631 | /* argument too large for an unsigned long? */ |
1400 | if (expect_false (v >= shift)) |
1632 | if (ecb_expect_false (v >= shift)) |
1401 | { |
1633 | { |
1402 | ev_tstamp f; |
1634 | ev_tstamp f; |
1403 | |
1635 | |
1404 | if (v == v - 1.) |
1636 | if (v == v - 1.) |
1405 | return v; /* very large number */ |
1637 | return v; /* very large number */ |
… | |
… | |
1407 | f = shift * ev_floor (v * (1. / shift)); |
1639 | f = shift * ev_floor (v * (1. / shift)); |
1408 | return f + ev_floor (v - f); |
1640 | return f + ev_floor (v - f); |
1409 | } |
1641 | } |
1410 | |
1642 | |
1411 | /* special treatment for negative args? */ |
1643 | /* special treatment for negative args? */ |
1412 | if (expect_false (v < 0.)) |
1644 | if (ecb_expect_false (v < 0.)) |
1413 | { |
1645 | { |
1414 | ev_tstamp f = -ev_floor (-v); |
1646 | ev_tstamp f = -ev_floor (-v); |
1415 | |
1647 | |
1416 | return f - (f == v ? 0 : 1); |
1648 | return f - (f == v ? 0 : 1); |
1417 | } |
1649 | } |
… | |
… | |
1426 | |
1658 | |
1427 | #ifdef __linux |
1659 | #ifdef __linux |
1428 | # include <sys/utsname.h> |
1660 | # include <sys/utsname.h> |
1429 | #endif |
1661 | #endif |
1430 | |
1662 | |
1431 | static unsigned int noinline ecb_cold |
1663 | ecb_noinline ecb_cold |
|
|
1664 | static unsigned int |
1432 | ev_linux_version (void) |
1665 | ev_linux_version (void) |
1433 | { |
1666 | { |
1434 | #ifdef __linux |
1667 | #ifdef __linux |
1435 | unsigned int v = 0; |
1668 | unsigned int v = 0; |
1436 | struct utsname buf; |
1669 | struct utsname buf; |
… | |
… | |
1465 | } |
1698 | } |
1466 | |
1699 | |
1467 | /*****************************************************************************/ |
1700 | /*****************************************************************************/ |
1468 | |
1701 | |
1469 | #if EV_AVOID_STDIO |
1702 | #if EV_AVOID_STDIO |
1470 | static void noinline ecb_cold |
1703 | ecb_noinline ecb_cold |
|
|
1704 | static void |
1471 | ev_printerr (const char *msg) |
1705 | ev_printerr (const char *msg) |
1472 | { |
1706 | { |
1473 | write (STDERR_FILENO, msg, strlen (msg)); |
1707 | write (STDERR_FILENO, msg, strlen (msg)); |
1474 | } |
1708 | } |
1475 | #endif |
1709 | #endif |
1476 | |
1710 | |
1477 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1711 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1478 | |
1712 | |
1479 | void ecb_cold |
1713 | ecb_cold |
|
|
1714 | void |
1480 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1715 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1481 | { |
1716 | { |
1482 | syserr_cb = cb; |
1717 | syserr_cb = cb; |
1483 | } |
1718 | } |
1484 | |
1719 | |
1485 | static void noinline ecb_cold |
1720 | ecb_noinline ecb_cold |
|
|
1721 | static void |
1486 | ev_syserr (const char *msg) |
1722 | ev_syserr (const char *msg) |
1487 | { |
1723 | { |
1488 | if (!msg) |
1724 | if (!msg) |
1489 | msg = "(libev) system error"; |
1725 | msg = "(libev) system error"; |
1490 | |
1726 | |
… | |
… | |
1503 | abort (); |
1739 | abort (); |
1504 | } |
1740 | } |
1505 | } |
1741 | } |
1506 | |
1742 | |
1507 | static void * |
1743 | static void * |
1508 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1744 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1509 | { |
1745 | { |
1510 | /* some systems, notably openbsd and darwin, fail to properly |
1746 | /* some systems, notably openbsd and darwin, fail to properly |
1511 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1747 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1512 | * the single unix specification, so work around them here. |
1748 | * the single unix specification, so work around them here. |
1513 | * recently, also (at least) fedora and debian started breaking it, |
1749 | * recently, also (at least) fedora and debian started breaking it, |
… | |
… | |
1519 | |
1755 | |
1520 | free (ptr); |
1756 | free (ptr); |
1521 | return 0; |
1757 | return 0; |
1522 | } |
1758 | } |
1523 | |
1759 | |
1524 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1760 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1525 | |
1761 | |
1526 | void ecb_cold |
1762 | ecb_cold |
|
|
1763 | void |
1527 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1764 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1528 | { |
1765 | { |
1529 | alloc = cb; |
1766 | alloc = cb; |
1530 | } |
1767 | } |
1531 | |
1768 | |
1532 | inline_speed void * |
1769 | inline_speed void * |
… | |
… | |
1559 | typedef struct |
1796 | typedef struct |
1560 | { |
1797 | { |
1561 | WL head; |
1798 | WL head; |
1562 | unsigned char events; /* the events watched for */ |
1799 | unsigned char events; /* the events watched for */ |
1563 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1800 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1564 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1801 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1565 | unsigned char unused; |
1802 | unsigned char unused; |
1566 | #if EV_USE_EPOLL |
1803 | #if EV_USE_EPOLL |
1567 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1804 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1568 | #endif |
1805 | #endif |
1569 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1806 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
… | |
… | |
1634 | static int ev_default_loop_ptr; |
1871 | static int ev_default_loop_ptr; |
1635 | |
1872 | |
1636 | #endif |
1873 | #endif |
1637 | |
1874 | |
1638 | #if EV_FEATURE_API |
1875 | #if EV_FEATURE_API |
1639 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
1876 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
1640 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
1877 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
1641 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1878 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1642 | #else |
1879 | #else |
1643 | # define EV_RELEASE_CB (void)0 |
1880 | # define EV_RELEASE_CB (void)0 |
1644 | # define EV_ACQUIRE_CB (void)0 |
1881 | # define EV_ACQUIRE_CB (void)0 |
1645 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1882 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1649 | |
1886 | |
1650 | /*****************************************************************************/ |
1887 | /*****************************************************************************/ |
1651 | |
1888 | |
1652 | #ifndef EV_HAVE_EV_TIME |
1889 | #ifndef EV_HAVE_EV_TIME |
1653 | ev_tstamp |
1890 | ev_tstamp |
1654 | ev_time (void) EV_THROW |
1891 | ev_time (void) EV_NOEXCEPT |
1655 | { |
1892 | { |
1656 | #if EV_USE_REALTIME |
1893 | #if EV_USE_REALTIME |
1657 | if (expect_true (have_realtime)) |
1894 | if (ecb_expect_true (have_realtime)) |
1658 | { |
1895 | { |
1659 | struct timespec ts; |
1896 | struct timespec ts; |
1660 | clock_gettime (CLOCK_REALTIME, &ts); |
1897 | clock_gettime (CLOCK_REALTIME, &ts); |
1661 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1898 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1662 | } |
1899 | } |
… | |
… | |
1670 | |
1907 | |
1671 | inline_size ev_tstamp |
1908 | inline_size ev_tstamp |
1672 | get_clock (void) |
1909 | get_clock (void) |
1673 | { |
1910 | { |
1674 | #if EV_USE_MONOTONIC |
1911 | #if EV_USE_MONOTONIC |
1675 | if (expect_true (have_monotonic)) |
1912 | if (ecb_expect_true (have_monotonic)) |
1676 | { |
1913 | { |
1677 | struct timespec ts; |
1914 | struct timespec ts; |
1678 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1915 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1679 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1916 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1680 | } |
1917 | } |
… | |
… | |
1683 | return ev_time (); |
1920 | return ev_time (); |
1684 | } |
1921 | } |
1685 | |
1922 | |
1686 | #if EV_MULTIPLICITY |
1923 | #if EV_MULTIPLICITY |
1687 | ev_tstamp |
1924 | ev_tstamp |
1688 | ev_now (EV_P) EV_THROW |
1925 | ev_now (EV_P) EV_NOEXCEPT |
1689 | { |
1926 | { |
1690 | return ev_rt_now; |
1927 | return ev_rt_now; |
1691 | } |
1928 | } |
1692 | #endif |
1929 | #endif |
1693 | |
1930 | |
1694 | void |
1931 | void |
1695 | ev_sleep (ev_tstamp delay) EV_THROW |
1932 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1696 | { |
1933 | { |
1697 | if (delay > 0.) |
1934 | if (delay > 0.) |
1698 | { |
1935 | { |
1699 | #if EV_USE_NANOSLEEP |
1936 | #if EV_USE_NANOSLEEP |
1700 | struct timespec ts; |
1937 | struct timespec ts; |
1701 | |
1938 | |
1702 | EV_TS_SET (ts, delay); |
1939 | EV_TS_SET (ts, delay); |
1703 | nanosleep (&ts, 0); |
1940 | nanosleep (&ts, 0); |
1704 | #elif defined _WIN32 |
1941 | #elif defined _WIN32 |
|
|
1942 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1943 | /* compared to select (µs) or nanosleep (ns) */ |
1705 | Sleep ((unsigned long)(delay * 1e3)); |
1944 | Sleep ((unsigned long)(delay * 1e3)); |
1706 | #else |
1945 | #else |
1707 | struct timeval tv; |
1946 | struct timeval tv; |
1708 | |
1947 | |
1709 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1948 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1740 | } |
1979 | } |
1741 | |
1980 | |
1742 | return ncur; |
1981 | return ncur; |
1743 | } |
1982 | } |
1744 | |
1983 | |
1745 | static void * noinline ecb_cold |
1984 | ecb_noinline ecb_cold |
|
|
1985 | static void * |
1746 | array_realloc (int elem, void *base, int *cur, int cnt) |
1986 | array_realloc (int elem, void *base, int *cur, int cnt) |
1747 | { |
1987 | { |
1748 | *cur = array_nextsize (elem, *cur, cnt); |
1988 | *cur = array_nextsize (elem, *cur, cnt); |
1749 | return ev_realloc (base, elem * *cur); |
1989 | return ev_realloc (base, elem * *cur); |
1750 | } |
1990 | } |
1751 | |
1991 | |
|
|
1992 | #define array_needsize_noinit(base,offset,count) |
|
|
1993 | |
1752 | #define array_init_zero(base,count) \ |
1994 | #define array_needsize_zerofill(base,offset,count) \ |
1753 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1995 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1754 | |
1996 | |
1755 | #define array_needsize(type,base,cur,cnt,init) \ |
1997 | #define array_needsize(type,base,cur,cnt,init) \ |
1756 | if (expect_false ((cnt) > (cur))) \ |
1998 | if (ecb_expect_false ((cnt) > (cur))) \ |
1757 | { \ |
1999 | { \ |
1758 | int ecb_unused ocur_ = (cur); \ |
2000 | ecb_unused int ocur_ = (cur); \ |
1759 | (base) = (type *)array_realloc \ |
2001 | (base) = (type *)array_realloc \ |
1760 | (sizeof (type), (base), &(cur), (cnt)); \ |
2002 | (sizeof (type), (base), &(cur), (cnt)); \ |
1761 | init ((base) + (ocur_), (cur) - ocur_); \ |
2003 | init ((base), ocur_, ((cur) - ocur_)); \ |
1762 | } |
2004 | } |
1763 | |
2005 | |
1764 | #if 0 |
2006 | #if 0 |
1765 | #define array_slim(type,stem) \ |
2007 | #define array_slim(type,stem) \ |
1766 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2008 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1775 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2017 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1776 | |
2018 | |
1777 | /*****************************************************************************/ |
2019 | /*****************************************************************************/ |
1778 | |
2020 | |
1779 | /* dummy callback for pending events */ |
2021 | /* dummy callback for pending events */ |
1780 | static void noinline |
2022 | ecb_noinline |
|
|
2023 | static void |
1781 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2024 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1782 | { |
2025 | { |
1783 | } |
2026 | } |
1784 | |
2027 | |
1785 | void noinline |
2028 | ecb_noinline |
|
|
2029 | void |
1786 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2030 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1787 | { |
2031 | { |
1788 | W w_ = (W)w; |
2032 | W w_ = (W)w; |
1789 | int pri = ABSPRI (w_); |
2033 | int pri = ABSPRI (w_); |
1790 | |
2034 | |
1791 | if (expect_false (w_->pending)) |
2035 | if (ecb_expect_false (w_->pending)) |
1792 | pendings [pri][w_->pending - 1].events |= revents; |
2036 | pendings [pri][w_->pending - 1].events |= revents; |
1793 | else |
2037 | else |
1794 | { |
2038 | { |
1795 | w_->pending = ++pendingcnt [pri]; |
2039 | w_->pending = ++pendingcnt [pri]; |
1796 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2040 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1797 | pendings [pri][w_->pending - 1].w = w_; |
2041 | pendings [pri][w_->pending - 1].w = w_; |
1798 | pendings [pri][w_->pending - 1].events = revents; |
2042 | pendings [pri][w_->pending - 1].events = revents; |
1799 | } |
2043 | } |
1800 | |
2044 | |
1801 | pendingpri = NUMPRI - 1; |
2045 | pendingpri = NUMPRI - 1; |
1802 | } |
2046 | } |
1803 | |
2047 | |
1804 | inline_speed void |
2048 | inline_speed void |
1805 | feed_reverse (EV_P_ W w) |
2049 | feed_reverse (EV_P_ W w) |
1806 | { |
2050 | { |
1807 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2051 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1808 | rfeeds [rfeedcnt++] = w; |
2052 | rfeeds [rfeedcnt++] = w; |
1809 | } |
2053 | } |
1810 | |
2054 | |
1811 | inline_size void |
2055 | inline_size void |
1812 | feed_reverse_done (EV_P_ int revents) |
2056 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1847 | inline_speed void |
2091 | inline_speed void |
1848 | fd_event (EV_P_ int fd, int revents) |
2092 | fd_event (EV_P_ int fd, int revents) |
1849 | { |
2093 | { |
1850 | ANFD *anfd = anfds + fd; |
2094 | ANFD *anfd = anfds + fd; |
1851 | |
2095 | |
1852 | if (expect_true (!anfd->reify)) |
2096 | if (ecb_expect_true (!anfd->reify)) |
1853 | fd_event_nocheck (EV_A_ fd, revents); |
2097 | fd_event_nocheck (EV_A_ fd, revents); |
1854 | } |
2098 | } |
1855 | |
2099 | |
1856 | void |
2100 | void |
1857 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2101 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1858 | { |
2102 | { |
1859 | if (fd >= 0 && fd < anfdmax) |
2103 | if (fd >= 0 && fd < anfdmax) |
1860 | fd_event_nocheck (EV_A_ fd, revents); |
2104 | fd_event_nocheck (EV_A_ fd, revents); |
1861 | } |
2105 | } |
1862 | |
2106 | |
… | |
… | |
1899 | ev_io *w; |
2143 | ev_io *w; |
1900 | |
2144 | |
1901 | unsigned char o_events = anfd->events; |
2145 | unsigned char o_events = anfd->events; |
1902 | unsigned char o_reify = anfd->reify; |
2146 | unsigned char o_reify = anfd->reify; |
1903 | |
2147 | |
1904 | anfd->reify = 0; |
2148 | anfd->reify = 0; |
1905 | |
2149 | |
1906 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2150 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1907 | { |
2151 | { |
1908 | anfd->events = 0; |
2152 | anfd->events = 0; |
1909 | |
2153 | |
1910 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2154 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1911 | anfd->events |= (unsigned char)w->events; |
2155 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1920 | |
2164 | |
1921 | fdchangecnt = 0; |
2165 | fdchangecnt = 0; |
1922 | } |
2166 | } |
1923 | |
2167 | |
1924 | /* something about the given fd changed */ |
2168 | /* something about the given fd changed */ |
1925 | inline_size void |
2169 | inline_size |
|
|
2170 | void |
1926 | fd_change (EV_P_ int fd, int flags) |
2171 | fd_change (EV_P_ int fd, int flags) |
1927 | { |
2172 | { |
1928 | unsigned char reify = anfds [fd].reify; |
2173 | unsigned char reify = anfds [fd].reify; |
1929 | anfds [fd].reify |= flags; |
2174 | anfds [fd].reify |= flags; |
1930 | |
2175 | |
1931 | if (expect_true (!reify)) |
2176 | if (ecb_expect_true (!reify)) |
1932 | { |
2177 | { |
1933 | ++fdchangecnt; |
2178 | ++fdchangecnt; |
1934 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2179 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1935 | fdchanges [fdchangecnt - 1] = fd; |
2180 | fdchanges [fdchangecnt - 1] = fd; |
1936 | } |
2181 | } |
1937 | } |
2182 | } |
1938 | |
2183 | |
1939 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2184 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1940 | inline_speed void ecb_cold |
2185 | inline_speed ecb_cold void |
1941 | fd_kill (EV_P_ int fd) |
2186 | fd_kill (EV_P_ int fd) |
1942 | { |
2187 | { |
1943 | ev_io *w; |
2188 | ev_io *w; |
1944 | |
2189 | |
1945 | while ((w = (ev_io *)anfds [fd].head)) |
2190 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1948 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2193 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1949 | } |
2194 | } |
1950 | } |
2195 | } |
1951 | |
2196 | |
1952 | /* check whether the given fd is actually valid, for error recovery */ |
2197 | /* check whether the given fd is actually valid, for error recovery */ |
1953 | inline_size int ecb_cold |
2198 | inline_size ecb_cold int |
1954 | fd_valid (int fd) |
2199 | fd_valid (int fd) |
1955 | { |
2200 | { |
1956 | #ifdef _WIN32 |
2201 | #ifdef _WIN32 |
1957 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2202 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1958 | #else |
2203 | #else |
1959 | return fcntl (fd, F_GETFD) != -1; |
2204 | return fcntl (fd, F_GETFD) != -1; |
1960 | #endif |
2205 | #endif |
1961 | } |
2206 | } |
1962 | |
2207 | |
1963 | /* called on EBADF to verify fds */ |
2208 | /* called on EBADF to verify fds */ |
1964 | static void noinline ecb_cold |
2209 | ecb_noinline ecb_cold |
|
|
2210 | static void |
1965 | fd_ebadf (EV_P) |
2211 | fd_ebadf (EV_P) |
1966 | { |
2212 | { |
1967 | int fd; |
2213 | int fd; |
1968 | |
2214 | |
1969 | for (fd = 0; fd < anfdmax; ++fd) |
2215 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1971 | if (!fd_valid (fd) && errno == EBADF) |
2217 | if (!fd_valid (fd) && errno == EBADF) |
1972 | fd_kill (EV_A_ fd); |
2218 | fd_kill (EV_A_ fd); |
1973 | } |
2219 | } |
1974 | |
2220 | |
1975 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2221 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1976 | static void noinline ecb_cold |
2222 | ecb_noinline ecb_cold |
|
|
2223 | static void |
1977 | fd_enomem (EV_P) |
2224 | fd_enomem (EV_P) |
1978 | { |
2225 | { |
1979 | int fd; |
2226 | int fd; |
1980 | |
2227 | |
1981 | for (fd = anfdmax; fd--; ) |
2228 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1985 | break; |
2232 | break; |
1986 | } |
2233 | } |
1987 | } |
2234 | } |
1988 | |
2235 | |
1989 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2236 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1990 | static void noinline |
2237 | ecb_noinline |
|
|
2238 | static void |
1991 | fd_rearm_all (EV_P) |
2239 | fd_rearm_all (EV_P) |
1992 | { |
2240 | { |
1993 | int fd; |
2241 | int fd; |
1994 | |
2242 | |
1995 | for (fd = 0; fd < anfdmax; ++fd) |
2243 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
2048 | ev_tstamp minat; |
2296 | ev_tstamp minat; |
2049 | ANHE *minpos; |
2297 | ANHE *minpos; |
2050 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2298 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2051 | |
2299 | |
2052 | /* find minimum child */ |
2300 | /* find minimum child */ |
2053 | if (expect_true (pos + DHEAP - 1 < E)) |
2301 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
2054 | { |
2302 | { |
2055 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2303 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2056 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2304 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2057 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2305 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2058 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2306 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
… | |
… | |
2176 | |
2424 | |
2177 | /*****************************************************************************/ |
2425 | /*****************************************************************************/ |
2178 | |
2426 | |
2179 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2427 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2180 | |
2428 | |
2181 | static void noinline ecb_cold |
2429 | ecb_noinline ecb_cold |
|
|
2430 | static void |
2182 | evpipe_init (EV_P) |
2431 | evpipe_init (EV_P) |
2183 | { |
2432 | { |
2184 | if (!ev_is_active (&pipe_w)) |
2433 | if (!ev_is_active (&pipe_w)) |
2185 | { |
2434 | { |
2186 | int fds [2]; |
2435 | int fds [2]; |
… | |
… | |
2226 | inline_speed void |
2475 | inline_speed void |
2227 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2476 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2228 | { |
2477 | { |
2229 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2478 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2230 | |
2479 | |
2231 | if (expect_true (*flag)) |
2480 | if (ecb_expect_true (*flag)) |
2232 | return; |
2481 | return; |
2233 | |
2482 | |
2234 | *flag = 1; |
2483 | *flag = 1; |
2235 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2484 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2236 | |
2485 | |
… | |
… | |
2257 | #endif |
2506 | #endif |
2258 | { |
2507 | { |
2259 | #ifdef _WIN32 |
2508 | #ifdef _WIN32 |
2260 | WSABUF buf; |
2509 | WSABUF buf; |
2261 | DWORD sent; |
2510 | DWORD sent; |
2262 | buf.buf = &buf; |
2511 | buf.buf = (char *)&buf; |
2263 | buf.len = 1; |
2512 | buf.len = 1; |
2264 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2513 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2265 | #else |
2514 | #else |
2266 | write (evpipe [1], &(evpipe [1]), 1); |
2515 | write (evpipe [1], &(evpipe [1]), 1); |
2267 | #endif |
2516 | #endif |
… | |
… | |
2313 | sig_pending = 0; |
2562 | sig_pending = 0; |
2314 | |
2563 | |
2315 | ECB_MEMORY_FENCE; |
2564 | ECB_MEMORY_FENCE; |
2316 | |
2565 | |
2317 | for (i = EV_NSIG - 1; i--; ) |
2566 | for (i = EV_NSIG - 1; i--; ) |
2318 | if (expect_false (signals [i].pending)) |
2567 | if (ecb_expect_false (signals [i].pending)) |
2319 | ev_feed_signal_event (EV_A_ i + 1); |
2568 | ev_feed_signal_event (EV_A_ i + 1); |
2320 | } |
2569 | } |
2321 | #endif |
2570 | #endif |
2322 | |
2571 | |
2323 | #if EV_ASYNC_ENABLE |
2572 | #if EV_ASYNC_ENABLE |
… | |
… | |
2339 | } |
2588 | } |
2340 | |
2589 | |
2341 | /*****************************************************************************/ |
2590 | /*****************************************************************************/ |
2342 | |
2591 | |
2343 | void |
2592 | void |
2344 | ev_feed_signal (int signum) EV_THROW |
2593 | ev_feed_signal (int signum) EV_NOEXCEPT |
2345 | { |
2594 | { |
2346 | #if EV_MULTIPLICITY |
2595 | #if EV_MULTIPLICITY |
2347 | EV_P; |
2596 | EV_P; |
2348 | ECB_MEMORY_FENCE_ACQUIRE; |
2597 | ECB_MEMORY_FENCE_ACQUIRE; |
2349 | EV_A = signals [signum - 1].loop; |
2598 | EV_A = signals [signum - 1].loop; |
… | |
… | |
2364 | #endif |
2613 | #endif |
2365 | |
2614 | |
2366 | ev_feed_signal (signum); |
2615 | ev_feed_signal (signum); |
2367 | } |
2616 | } |
2368 | |
2617 | |
2369 | void noinline |
2618 | ecb_noinline |
|
|
2619 | void |
2370 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2620 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2371 | { |
2621 | { |
2372 | WL w; |
2622 | WL w; |
2373 | |
2623 | |
2374 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2624 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
2375 | return; |
2625 | return; |
2376 | |
2626 | |
2377 | --signum; |
2627 | --signum; |
2378 | |
2628 | |
2379 | #if EV_MULTIPLICITY |
2629 | #if EV_MULTIPLICITY |
2380 | /* it is permissible to try to feed a signal to the wrong loop */ |
2630 | /* it is permissible to try to feed a signal to the wrong loop */ |
2381 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2631 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2382 | |
2632 | |
2383 | if (expect_false (signals [signum].loop != EV_A)) |
2633 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
2384 | return; |
2634 | return; |
2385 | #endif |
2635 | #endif |
2386 | |
2636 | |
2387 | signals [signum].pending = 0; |
2637 | signals [signum].pending = 0; |
2388 | ECB_MEMORY_FENCE_RELEASE; |
2638 | ECB_MEMORY_FENCE_RELEASE; |
… | |
… | |
2484 | # include "ev_kqueue.c" |
2734 | # include "ev_kqueue.c" |
2485 | #endif |
2735 | #endif |
2486 | #if EV_USE_EPOLL |
2736 | #if EV_USE_EPOLL |
2487 | # include "ev_epoll.c" |
2737 | # include "ev_epoll.c" |
2488 | #endif |
2738 | #endif |
|
|
2739 | #if EV_USE_LINUXAIO |
|
|
2740 | # include "ev_linuxaio.c" |
|
|
2741 | #endif |
2489 | #if EV_USE_POLL |
2742 | #if EV_USE_POLL |
2490 | # include "ev_poll.c" |
2743 | # include "ev_poll.c" |
2491 | #endif |
2744 | #endif |
2492 | #if EV_USE_SELECT |
2745 | #if EV_USE_SELECT |
2493 | # include "ev_select.c" |
2746 | # include "ev_select.c" |
2494 | #endif |
2747 | #endif |
2495 | |
2748 | |
2496 | int ecb_cold |
2749 | ecb_cold int |
2497 | ev_version_major (void) EV_THROW |
2750 | ev_version_major (void) EV_NOEXCEPT |
2498 | { |
2751 | { |
2499 | return EV_VERSION_MAJOR; |
2752 | return EV_VERSION_MAJOR; |
2500 | } |
2753 | } |
2501 | |
2754 | |
2502 | int ecb_cold |
2755 | ecb_cold int |
2503 | ev_version_minor (void) EV_THROW |
2756 | ev_version_minor (void) EV_NOEXCEPT |
2504 | { |
2757 | { |
2505 | return EV_VERSION_MINOR; |
2758 | return EV_VERSION_MINOR; |
2506 | } |
2759 | } |
2507 | |
2760 | |
2508 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2761 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2509 | int inline_size ecb_cold |
2762 | inline_size ecb_cold int |
2510 | enable_secure (void) |
2763 | enable_secure (void) |
2511 | { |
2764 | { |
2512 | #ifdef _WIN32 |
2765 | #ifdef _WIN32 |
2513 | return 0; |
2766 | return 0; |
2514 | #else |
2767 | #else |
2515 | return getuid () != geteuid () |
2768 | return getuid () != geteuid () |
2516 | || getgid () != getegid (); |
2769 | || getgid () != getegid (); |
2517 | #endif |
2770 | #endif |
2518 | } |
2771 | } |
2519 | |
2772 | |
2520 | unsigned int ecb_cold |
2773 | ecb_cold |
|
|
2774 | unsigned int |
2521 | ev_supported_backends (void) EV_THROW |
2775 | ev_supported_backends (void) EV_NOEXCEPT |
2522 | { |
2776 | { |
2523 | unsigned int flags = 0; |
2777 | unsigned int flags = 0; |
2524 | |
2778 | |
2525 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2779 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2526 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2780 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2527 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2781 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2782 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
2528 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2783 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2529 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2784 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2530 | |
2785 | |
2531 | return flags; |
2786 | return flags; |
2532 | } |
2787 | } |
2533 | |
2788 | |
2534 | unsigned int ecb_cold |
2789 | ecb_cold |
|
|
2790 | unsigned int |
2535 | ev_recommended_backends (void) EV_THROW |
2791 | ev_recommended_backends (void) EV_NOEXCEPT |
2536 | { |
2792 | { |
2537 | unsigned int flags = ev_supported_backends (); |
2793 | unsigned int flags = ev_supported_backends (); |
2538 | |
2794 | |
2539 | #ifndef __NetBSD__ |
2795 | #ifndef __NetBSD__ |
2540 | /* kqueue is borked on everything but netbsd apparently */ |
2796 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2548 | #endif |
2804 | #endif |
2549 | #ifdef __FreeBSD__ |
2805 | #ifdef __FreeBSD__ |
2550 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2806 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2551 | #endif |
2807 | #endif |
2552 | |
2808 | |
|
|
2809 | /* TODO: linuxaio is very experimental */ |
|
|
2810 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2811 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2812 | #endif |
|
|
2813 | |
2553 | return flags; |
2814 | return flags; |
2554 | } |
2815 | } |
2555 | |
2816 | |
2556 | unsigned int ecb_cold |
2817 | ecb_cold |
|
|
2818 | unsigned int |
2557 | ev_embeddable_backends (void) EV_THROW |
2819 | ev_embeddable_backends (void) EV_NOEXCEPT |
2558 | { |
2820 | { |
2559 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2821 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2560 | |
2822 | |
2561 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2823 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2562 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2824 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
2564 | |
2826 | |
2565 | return flags; |
2827 | return flags; |
2566 | } |
2828 | } |
2567 | |
2829 | |
2568 | unsigned int |
2830 | unsigned int |
2569 | ev_backend (EV_P) EV_THROW |
2831 | ev_backend (EV_P) EV_NOEXCEPT |
2570 | { |
2832 | { |
2571 | return backend; |
2833 | return backend; |
2572 | } |
2834 | } |
2573 | |
2835 | |
2574 | #if EV_FEATURE_API |
2836 | #if EV_FEATURE_API |
2575 | unsigned int |
2837 | unsigned int |
2576 | ev_iteration (EV_P) EV_THROW |
2838 | ev_iteration (EV_P) EV_NOEXCEPT |
2577 | { |
2839 | { |
2578 | return loop_count; |
2840 | return loop_count; |
2579 | } |
2841 | } |
2580 | |
2842 | |
2581 | unsigned int |
2843 | unsigned int |
2582 | ev_depth (EV_P) EV_THROW |
2844 | ev_depth (EV_P) EV_NOEXCEPT |
2583 | { |
2845 | { |
2584 | return loop_depth; |
2846 | return loop_depth; |
2585 | } |
2847 | } |
2586 | |
2848 | |
2587 | void |
2849 | void |
2588 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2850 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2589 | { |
2851 | { |
2590 | io_blocktime = interval; |
2852 | io_blocktime = interval; |
2591 | } |
2853 | } |
2592 | |
2854 | |
2593 | void |
2855 | void |
2594 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2856 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2595 | { |
2857 | { |
2596 | timeout_blocktime = interval; |
2858 | timeout_blocktime = interval; |
2597 | } |
2859 | } |
2598 | |
2860 | |
2599 | void |
2861 | void |
2600 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2862 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2601 | { |
2863 | { |
2602 | userdata = data; |
2864 | userdata = data; |
2603 | } |
2865 | } |
2604 | |
2866 | |
2605 | void * |
2867 | void * |
2606 | ev_userdata (EV_P) EV_THROW |
2868 | ev_userdata (EV_P) EV_NOEXCEPT |
2607 | { |
2869 | { |
2608 | return userdata; |
2870 | return userdata; |
2609 | } |
2871 | } |
2610 | |
2872 | |
2611 | void |
2873 | void |
2612 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2874 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2613 | { |
2875 | { |
2614 | invoke_cb = invoke_pending_cb; |
2876 | invoke_cb = invoke_pending_cb; |
2615 | } |
2877 | } |
2616 | |
2878 | |
2617 | void |
2879 | void |
2618 | ev_set_loop_release_cb (EV_P_ ev_loop_callback EV_THROW release, ev_loop_callback EV_THROW acquire) EV_THROW |
2880 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2619 | { |
2881 | { |
2620 | release_cb = release; |
2882 | release_cb = release; |
2621 | acquire_cb = acquire; |
2883 | acquire_cb = acquire; |
2622 | } |
2884 | } |
2623 | #endif |
2885 | #endif |
2624 | |
2886 | |
2625 | /* initialise a loop structure, must be zero-initialised */ |
2887 | /* initialise a loop structure, must be zero-initialised */ |
2626 | static void noinline ecb_cold |
2888 | ecb_noinline ecb_cold |
|
|
2889 | static void |
2627 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2890 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2628 | { |
2891 | { |
2629 | if (!backend) |
2892 | if (!backend) |
2630 | { |
2893 | { |
2631 | origflags = flags; |
2894 | origflags = flags; |
2632 | |
2895 | |
… | |
… | |
2690 | |
2953 | |
2691 | if (!(flags & EVBACKEND_MASK)) |
2954 | if (!(flags & EVBACKEND_MASK)) |
2692 | flags |= ev_recommended_backends (); |
2955 | flags |= ev_recommended_backends (); |
2693 | |
2956 | |
2694 | #if EV_USE_IOCP |
2957 | #if EV_USE_IOCP |
2695 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2958 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2696 | #endif |
2959 | #endif |
2697 | #if EV_USE_PORT |
2960 | #if EV_USE_PORT |
2698 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2961 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2699 | #endif |
2962 | #endif |
2700 | #if EV_USE_KQUEUE |
2963 | #if EV_USE_KQUEUE |
2701 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2964 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
2965 | #endif |
|
|
2966 | #if EV_USE_LINUXAIO |
|
|
2967 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2702 | #endif |
2968 | #endif |
2703 | #if EV_USE_EPOLL |
2969 | #if EV_USE_EPOLL |
2704 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2970 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2705 | #endif |
2971 | #endif |
2706 | #if EV_USE_POLL |
2972 | #if EV_USE_POLL |
2707 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2973 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2708 | #endif |
2974 | #endif |
2709 | #if EV_USE_SELECT |
2975 | #if EV_USE_SELECT |
2710 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2976 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2711 | #endif |
2977 | #endif |
2712 | |
2978 | |
2713 | ev_prepare_init (&pending_w, pendingcb); |
2979 | ev_prepare_init (&pending_w, pendingcb); |
2714 | |
2980 | |
2715 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2981 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2718 | #endif |
2984 | #endif |
2719 | } |
2985 | } |
2720 | } |
2986 | } |
2721 | |
2987 | |
2722 | /* free up a loop structure */ |
2988 | /* free up a loop structure */ |
2723 | void ecb_cold |
2989 | ecb_cold |
|
|
2990 | void |
2724 | ev_loop_destroy (EV_P) |
2991 | ev_loop_destroy (EV_P) |
2725 | { |
2992 | { |
2726 | int i; |
2993 | int i; |
2727 | |
2994 | |
2728 | #if EV_MULTIPLICITY |
2995 | #if EV_MULTIPLICITY |
… | |
… | |
2731 | return; |
2998 | return; |
2732 | #endif |
2999 | #endif |
2733 | |
3000 | |
2734 | #if EV_CLEANUP_ENABLE |
3001 | #if EV_CLEANUP_ENABLE |
2735 | /* queue cleanup watchers (and execute them) */ |
3002 | /* queue cleanup watchers (and execute them) */ |
2736 | if (expect_false (cleanupcnt)) |
3003 | if (ecb_expect_false (cleanupcnt)) |
2737 | { |
3004 | { |
2738 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3005 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2739 | EV_INVOKE_PENDING; |
3006 | EV_INVOKE_PENDING; |
2740 | } |
3007 | } |
2741 | #endif |
3008 | #endif |
… | |
… | |
2769 | |
3036 | |
2770 | if (backend_fd >= 0) |
3037 | if (backend_fd >= 0) |
2771 | close (backend_fd); |
3038 | close (backend_fd); |
2772 | |
3039 | |
2773 | #if EV_USE_IOCP |
3040 | #if EV_USE_IOCP |
2774 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3041 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2775 | #endif |
3042 | #endif |
2776 | #if EV_USE_PORT |
3043 | #if EV_USE_PORT |
2777 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3044 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2778 | #endif |
3045 | #endif |
2779 | #if EV_USE_KQUEUE |
3046 | #if EV_USE_KQUEUE |
2780 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3047 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3048 | #endif |
|
|
3049 | #if EV_USE_LINUXAIO |
|
|
3050 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2781 | #endif |
3051 | #endif |
2782 | #if EV_USE_EPOLL |
3052 | #if EV_USE_EPOLL |
2783 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3053 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2784 | #endif |
3054 | #endif |
2785 | #if EV_USE_POLL |
3055 | #if EV_USE_POLL |
2786 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3056 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2787 | #endif |
3057 | #endif |
2788 | #if EV_USE_SELECT |
3058 | #if EV_USE_SELECT |
2789 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3059 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2790 | #endif |
3060 | #endif |
2791 | |
3061 | |
2792 | for (i = NUMPRI; i--; ) |
3062 | for (i = NUMPRI; i--; ) |
2793 | { |
3063 | { |
2794 | array_free (pending, [i]); |
3064 | array_free (pending, [i]); |
… | |
… | |
2836 | |
3106 | |
2837 | inline_size void |
3107 | inline_size void |
2838 | loop_fork (EV_P) |
3108 | loop_fork (EV_P) |
2839 | { |
3109 | { |
2840 | #if EV_USE_PORT |
3110 | #if EV_USE_PORT |
2841 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3111 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2842 | #endif |
3112 | #endif |
2843 | #if EV_USE_KQUEUE |
3113 | #if EV_USE_KQUEUE |
2844 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3114 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3115 | #endif |
|
|
3116 | #if EV_USE_LINUXAIO |
|
|
3117 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2845 | #endif |
3118 | #endif |
2846 | #if EV_USE_EPOLL |
3119 | #if EV_USE_EPOLL |
2847 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3120 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2848 | #endif |
3121 | #endif |
2849 | #if EV_USE_INOTIFY |
3122 | #if EV_USE_INOTIFY |
2850 | infy_fork (EV_A); |
3123 | infy_fork (EV_A); |
2851 | #endif |
3124 | #endif |
2852 | |
3125 | |
2853 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3126 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2854 | if (ev_is_active (&pipe_w)) |
3127 | if (ev_is_active (&pipe_w) && postfork != 2) |
2855 | { |
3128 | { |
2856 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3129 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2857 | |
3130 | |
2858 | ev_ref (EV_A); |
3131 | ev_ref (EV_A); |
2859 | ev_io_stop (EV_A_ &pipe_w); |
3132 | ev_io_stop (EV_A_ &pipe_w); |
… | |
… | |
2870 | postfork = 0; |
3143 | postfork = 0; |
2871 | } |
3144 | } |
2872 | |
3145 | |
2873 | #if EV_MULTIPLICITY |
3146 | #if EV_MULTIPLICITY |
2874 | |
3147 | |
|
|
3148 | ecb_cold |
2875 | struct ev_loop * ecb_cold |
3149 | struct ev_loop * |
2876 | ev_loop_new (unsigned int flags) EV_THROW |
3150 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2877 | { |
3151 | { |
2878 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3152 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2879 | |
3153 | |
2880 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3154 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2881 | loop_init (EV_A_ flags); |
3155 | loop_init (EV_A_ flags); |
… | |
… | |
2888 | } |
3162 | } |
2889 | |
3163 | |
2890 | #endif /* multiplicity */ |
3164 | #endif /* multiplicity */ |
2891 | |
3165 | |
2892 | #if EV_VERIFY |
3166 | #if EV_VERIFY |
2893 | static void noinline ecb_cold |
3167 | ecb_noinline ecb_cold |
|
|
3168 | static void |
2894 | verify_watcher (EV_P_ W w) |
3169 | verify_watcher (EV_P_ W w) |
2895 | { |
3170 | { |
2896 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3171 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2897 | |
3172 | |
2898 | if (w->pending) |
3173 | if (w->pending) |
2899 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3174 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2900 | } |
3175 | } |
2901 | |
3176 | |
2902 | static void noinline ecb_cold |
3177 | ecb_noinline ecb_cold |
|
|
3178 | static void |
2903 | verify_heap (EV_P_ ANHE *heap, int N) |
3179 | verify_heap (EV_P_ ANHE *heap, int N) |
2904 | { |
3180 | { |
2905 | int i; |
3181 | int i; |
2906 | |
3182 | |
2907 | for (i = HEAP0; i < N + HEAP0; ++i) |
3183 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2912 | |
3188 | |
2913 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3189 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2914 | } |
3190 | } |
2915 | } |
3191 | } |
2916 | |
3192 | |
2917 | static void noinline ecb_cold |
3193 | ecb_noinline ecb_cold |
|
|
3194 | static void |
2918 | array_verify (EV_P_ W *ws, int cnt) |
3195 | array_verify (EV_P_ W *ws, int cnt) |
2919 | { |
3196 | { |
2920 | while (cnt--) |
3197 | while (cnt--) |
2921 | { |
3198 | { |
2922 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3199 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2925 | } |
3202 | } |
2926 | #endif |
3203 | #endif |
2927 | |
3204 | |
2928 | #if EV_FEATURE_API |
3205 | #if EV_FEATURE_API |
2929 | void ecb_cold |
3206 | void ecb_cold |
2930 | ev_verify (EV_P) EV_THROW |
3207 | ev_verify (EV_P) EV_NOEXCEPT |
2931 | { |
3208 | { |
2932 | #if EV_VERIFY |
3209 | #if EV_VERIFY |
2933 | int i; |
3210 | int i; |
2934 | WL w, w2; |
3211 | WL w, w2; |
2935 | |
3212 | |
… | |
… | |
3011 | #endif |
3288 | #endif |
3012 | } |
3289 | } |
3013 | #endif |
3290 | #endif |
3014 | |
3291 | |
3015 | #if EV_MULTIPLICITY |
3292 | #if EV_MULTIPLICITY |
|
|
3293 | ecb_cold |
3016 | struct ev_loop * ecb_cold |
3294 | struct ev_loop * |
3017 | #else |
3295 | #else |
3018 | int |
3296 | int |
3019 | #endif |
3297 | #endif |
3020 | ev_default_loop (unsigned int flags) EV_THROW |
3298 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
3021 | { |
3299 | { |
3022 | if (!ev_default_loop_ptr) |
3300 | if (!ev_default_loop_ptr) |
3023 | { |
3301 | { |
3024 | #if EV_MULTIPLICITY |
3302 | #if EV_MULTIPLICITY |
3025 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3303 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
3044 | |
3322 | |
3045 | return ev_default_loop_ptr; |
3323 | return ev_default_loop_ptr; |
3046 | } |
3324 | } |
3047 | |
3325 | |
3048 | void |
3326 | void |
3049 | ev_loop_fork (EV_P) EV_THROW |
3327 | ev_loop_fork (EV_P) EV_NOEXCEPT |
3050 | { |
3328 | { |
3051 | postfork = 1; |
3329 | postfork = 1; |
3052 | } |
3330 | } |
3053 | |
3331 | |
3054 | /*****************************************************************************/ |
3332 | /*****************************************************************************/ |
… | |
… | |
3058 | { |
3336 | { |
3059 | EV_CB_INVOKE ((W)w, revents); |
3337 | EV_CB_INVOKE ((W)w, revents); |
3060 | } |
3338 | } |
3061 | |
3339 | |
3062 | unsigned int |
3340 | unsigned int |
3063 | ev_pending_count (EV_P) EV_THROW |
3341 | ev_pending_count (EV_P) EV_NOEXCEPT |
3064 | { |
3342 | { |
3065 | int pri; |
3343 | int pri; |
3066 | unsigned int count = 0; |
3344 | unsigned int count = 0; |
3067 | |
3345 | |
3068 | for (pri = NUMPRI; pri--; ) |
3346 | for (pri = NUMPRI; pri--; ) |
3069 | count += pendingcnt [pri]; |
3347 | count += pendingcnt [pri]; |
3070 | |
3348 | |
3071 | return count; |
3349 | return count; |
3072 | } |
3350 | } |
3073 | |
3351 | |
3074 | void noinline |
3352 | ecb_noinline |
|
|
3353 | void |
3075 | ev_invoke_pending (EV_P) |
3354 | ev_invoke_pending (EV_P) |
3076 | { |
3355 | { |
3077 | pendingpri = NUMPRI; |
3356 | pendingpri = NUMPRI; |
3078 | |
3357 | |
3079 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3358 | do |
3080 | { |
3359 | { |
3081 | --pendingpri; |
3360 | --pendingpri; |
3082 | |
3361 | |
|
|
3362 | /* pendingpri possibly gets modified in the inner loop */ |
3083 | while (pendingcnt [pendingpri]) |
3363 | while (pendingcnt [pendingpri]) |
3084 | { |
3364 | { |
3085 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3365 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3086 | |
3366 | |
3087 | p->w->pending = 0; |
3367 | p->w->pending = 0; |
3088 | EV_CB_INVOKE (p->w, p->events); |
3368 | EV_CB_INVOKE (p->w, p->events); |
3089 | EV_FREQUENT_CHECK; |
3369 | EV_FREQUENT_CHECK; |
3090 | } |
3370 | } |
3091 | } |
3371 | } |
|
|
3372 | while (pendingpri); |
3092 | } |
3373 | } |
3093 | |
3374 | |
3094 | #if EV_IDLE_ENABLE |
3375 | #if EV_IDLE_ENABLE |
3095 | /* make idle watchers pending. this handles the "call-idle */ |
3376 | /* make idle watchers pending. this handles the "call-idle */ |
3096 | /* only when higher priorities are idle" logic */ |
3377 | /* only when higher priorities are idle" logic */ |
3097 | inline_size void |
3378 | inline_size void |
3098 | idle_reify (EV_P) |
3379 | idle_reify (EV_P) |
3099 | { |
3380 | { |
3100 | if (expect_false (idleall)) |
3381 | if (ecb_expect_false (idleall)) |
3101 | { |
3382 | { |
3102 | int pri; |
3383 | int pri; |
3103 | |
3384 | |
3104 | for (pri = NUMPRI; pri--; ) |
3385 | for (pri = NUMPRI; pri--; ) |
3105 | { |
3386 | { |
… | |
… | |
3154 | } |
3435 | } |
3155 | } |
3436 | } |
3156 | |
3437 | |
3157 | #if EV_PERIODIC_ENABLE |
3438 | #if EV_PERIODIC_ENABLE |
3158 | |
3439 | |
3159 | static void noinline |
3440 | ecb_noinline |
|
|
3441 | static void |
3160 | periodic_recalc (EV_P_ ev_periodic *w) |
3442 | periodic_recalc (EV_P_ ev_periodic *w) |
3161 | { |
3443 | { |
3162 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3444 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3163 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3445 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3164 | |
3446 | |
… | |
… | |
3166 | while (at <= ev_rt_now) |
3448 | while (at <= ev_rt_now) |
3167 | { |
3449 | { |
3168 | ev_tstamp nat = at + w->interval; |
3450 | ev_tstamp nat = at + w->interval; |
3169 | |
3451 | |
3170 | /* when resolution fails us, we use ev_rt_now */ |
3452 | /* when resolution fails us, we use ev_rt_now */ |
3171 | if (expect_false (nat == at)) |
3453 | if (ecb_expect_false (nat == at)) |
3172 | { |
3454 | { |
3173 | at = ev_rt_now; |
3455 | at = ev_rt_now; |
3174 | break; |
3456 | break; |
3175 | } |
3457 | } |
3176 | |
3458 | |
… | |
… | |
3222 | } |
3504 | } |
3223 | } |
3505 | } |
3224 | |
3506 | |
3225 | /* simply recalculate all periodics */ |
3507 | /* simply recalculate all periodics */ |
3226 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3508 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3227 | static void noinline ecb_cold |
3509 | ecb_noinline ecb_cold |
|
|
3510 | static void |
3228 | periodics_reschedule (EV_P) |
3511 | periodics_reschedule (EV_P) |
3229 | { |
3512 | { |
3230 | int i; |
3513 | int i; |
3231 | |
3514 | |
3232 | /* adjust periodics after time jump */ |
3515 | /* adjust periodics after time jump */ |
… | |
… | |
3245 | reheap (periodics, periodiccnt); |
3528 | reheap (periodics, periodiccnt); |
3246 | } |
3529 | } |
3247 | #endif |
3530 | #endif |
3248 | |
3531 | |
3249 | /* adjust all timers by a given offset */ |
3532 | /* adjust all timers by a given offset */ |
3250 | static void noinline ecb_cold |
3533 | ecb_noinline ecb_cold |
|
|
3534 | static void |
3251 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3535 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3252 | { |
3536 | { |
3253 | int i; |
3537 | int i; |
3254 | |
3538 | |
3255 | for (i = 0; i < timercnt; ++i) |
3539 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3264 | /* also detect if there was a timejump, and act accordingly */ |
3548 | /* also detect if there was a timejump, and act accordingly */ |
3265 | inline_speed void |
3549 | inline_speed void |
3266 | time_update (EV_P_ ev_tstamp max_block) |
3550 | time_update (EV_P_ ev_tstamp max_block) |
3267 | { |
3551 | { |
3268 | #if EV_USE_MONOTONIC |
3552 | #if EV_USE_MONOTONIC |
3269 | if (expect_true (have_monotonic)) |
3553 | if (ecb_expect_true (have_monotonic)) |
3270 | { |
3554 | { |
3271 | int i; |
3555 | int i; |
3272 | ev_tstamp odiff = rtmn_diff; |
3556 | ev_tstamp odiff = rtmn_diff; |
3273 | |
3557 | |
3274 | mn_now = get_clock (); |
3558 | mn_now = get_clock (); |
3275 | |
3559 | |
3276 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3560 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3277 | /* interpolate in the meantime */ |
3561 | /* interpolate in the meantime */ |
3278 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3562 | if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3279 | { |
3563 | { |
3280 | ev_rt_now = rtmn_diff + mn_now; |
3564 | ev_rt_now = rtmn_diff + mn_now; |
3281 | return; |
3565 | return; |
3282 | } |
3566 | } |
3283 | |
3567 | |
… | |
… | |
3297 | ev_tstamp diff; |
3581 | ev_tstamp diff; |
3298 | rtmn_diff = ev_rt_now - mn_now; |
3582 | rtmn_diff = ev_rt_now - mn_now; |
3299 | |
3583 | |
3300 | diff = odiff - rtmn_diff; |
3584 | diff = odiff - rtmn_diff; |
3301 | |
3585 | |
3302 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3586 | if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3303 | return; /* all is well */ |
3587 | return; /* all is well */ |
3304 | |
3588 | |
3305 | ev_rt_now = ev_time (); |
3589 | ev_rt_now = ev_time (); |
3306 | mn_now = get_clock (); |
3590 | mn_now = get_clock (); |
3307 | now_floor = mn_now; |
3591 | now_floor = mn_now; |
… | |
… | |
3316 | else |
3600 | else |
3317 | #endif |
3601 | #endif |
3318 | { |
3602 | { |
3319 | ev_rt_now = ev_time (); |
3603 | ev_rt_now = ev_time (); |
3320 | |
3604 | |
3321 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3605 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3322 | { |
3606 | { |
3323 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3607 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3324 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3608 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3325 | #if EV_PERIODIC_ENABLE |
3609 | #if EV_PERIODIC_ENABLE |
3326 | periodics_reschedule (EV_A); |
3610 | periodics_reschedule (EV_A); |
… | |
… | |
3349 | #if EV_VERIFY >= 2 |
3633 | #if EV_VERIFY >= 2 |
3350 | ev_verify (EV_A); |
3634 | ev_verify (EV_A); |
3351 | #endif |
3635 | #endif |
3352 | |
3636 | |
3353 | #ifndef _WIN32 |
3637 | #ifndef _WIN32 |
3354 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3638 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
3355 | if (expect_false (getpid () != curpid)) |
3639 | if (ecb_expect_false (getpid () != curpid)) |
3356 | { |
3640 | { |
3357 | curpid = getpid (); |
3641 | curpid = getpid (); |
3358 | postfork = 1; |
3642 | postfork = 1; |
3359 | } |
3643 | } |
3360 | #endif |
3644 | #endif |
3361 | |
3645 | |
3362 | #if EV_FORK_ENABLE |
3646 | #if EV_FORK_ENABLE |
3363 | /* we might have forked, so queue fork handlers */ |
3647 | /* we might have forked, so queue fork handlers */ |
3364 | if (expect_false (postfork)) |
3648 | if (ecb_expect_false (postfork)) |
3365 | if (forkcnt) |
3649 | if (forkcnt) |
3366 | { |
3650 | { |
3367 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3651 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3368 | EV_INVOKE_PENDING; |
3652 | EV_INVOKE_PENDING; |
3369 | } |
3653 | } |
3370 | #endif |
3654 | #endif |
3371 | |
3655 | |
3372 | #if EV_PREPARE_ENABLE |
3656 | #if EV_PREPARE_ENABLE |
3373 | /* queue prepare watchers (and execute them) */ |
3657 | /* queue prepare watchers (and execute them) */ |
3374 | if (expect_false (preparecnt)) |
3658 | if (ecb_expect_false (preparecnt)) |
3375 | { |
3659 | { |
3376 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3660 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3377 | EV_INVOKE_PENDING; |
3661 | EV_INVOKE_PENDING; |
3378 | } |
3662 | } |
3379 | #endif |
3663 | #endif |
3380 | |
3664 | |
3381 | if (expect_false (loop_done)) |
3665 | if (ecb_expect_false (loop_done)) |
3382 | break; |
3666 | break; |
3383 | |
3667 | |
3384 | /* we might have forked, so reify kernel state if necessary */ |
3668 | /* we might have forked, so reify kernel state if necessary */ |
3385 | if (expect_false (postfork)) |
3669 | if (ecb_expect_false (postfork)) |
3386 | loop_fork (EV_A); |
3670 | loop_fork (EV_A); |
3387 | |
3671 | |
3388 | /* update fd-related kernel structures */ |
3672 | /* update fd-related kernel structures */ |
3389 | fd_reify (EV_A); |
3673 | fd_reify (EV_A); |
3390 | |
3674 | |
… | |
… | |
3402 | /* from now on, we want a pipe-wake-up */ |
3686 | /* from now on, we want a pipe-wake-up */ |
3403 | pipe_write_wanted = 1; |
3687 | pipe_write_wanted = 1; |
3404 | |
3688 | |
3405 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3689 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3406 | |
3690 | |
3407 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3691 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3408 | { |
3692 | { |
3409 | waittime = MAX_BLOCKTIME; |
3693 | waittime = MAX_BLOCKTIME; |
3410 | |
3694 | |
3411 | if (timercnt) |
3695 | if (timercnt) |
3412 | { |
3696 | { |
… | |
… | |
3421 | if (waittime > to) waittime = to; |
3705 | if (waittime > to) waittime = to; |
3422 | } |
3706 | } |
3423 | #endif |
3707 | #endif |
3424 | |
3708 | |
3425 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3709 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3426 | if (expect_false (waittime < timeout_blocktime)) |
3710 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3427 | waittime = timeout_blocktime; |
3711 | waittime = timeout_blocktime; |
3428 | |
3712 | |
3429 | /* at this point, we NEED to wait, so we have to ensure */ |
3713 | /* at this point, we NEED to wait, so we have to ensure */ |
3430 | /* to pass a minimum nonzero value to the backend */ |
3714 | /* to pass a minimum nonzero value to the backend */ |
3431 | if (expect_false (waittime < backend_mintime)) |
3715 | if (ecb_expect_false (waittime < backend_mintime)) |
3432 | waittime = backend_mintime; |
3716 | waittime = backend_mintime; |
3433 | |
3717 | |
3434 | /* extra check because io_blocktime is commonly 0 */ |
3718 | /* extra check because io_blocktime is commonly 0 */ |
3435 | if (expect_false (io_blocktime)) |
3719 | if (ecb_expect_false (io_blocktime)) |
3436 | { |
3720 | { |
3437 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3721 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3438 | |
3722 | |
3439 | if (sleeptime > waittime - backend_mintime) |
3723 | if (sleeptime > waittime - backend_mintime) |
3440 | sleeptime = waittime - backend_mintime; |
3724 | sleeptime = waittime - backend_mintime; |
3441 | |
3725 | |
3442 | if (expect_true (sleeptime > 0.)) |
3726 | if (ecb_expect_true (sleeptime > 0.)) |
3443 | { |
3727 | { |
3444 | ev_sleep (sleeptime); |
3728 | ev_sleep (sleeptime); |
3445 | waittime -= sleeptime; |
3729 | waittime -= sleeptime; |
3446 | } |
3730 | } |
3447 | } |
3731 | } |
… | |
… | |
3461 | { |
3745 | { |
3462 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3746 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3463 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3747 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3464 | } |
3748 | } |
3465 | |
3749 | |
3466 | |
|
|
3467 | /* update ev_rt_now, do magic */ |
3750 | /* update ev_rt_now, do magic */ |
3468 | time_update (EV_A_ waittime + sleeptime); |
3751 | time_update (EV_A_ waittime + sleeptime); |
3469 | } |
3752 | } |
3470 | |
3753 | |
3471 | /* queue pending timers and reschedule them */ |
3754 | /* queue pending timers and reschedule them */ |
… | |
… | |
3479 | idle_reify (EV_A); |
3762 | idle_reify (EV_A); |
3480 | #endif |
3763 | #endif |
3481 | |
3764 | |
3482 | #if EV_CHECK_ENABLE |
3765 | #if EV_CHECK_ENABLE |
3483 | /* queue check watchers, to be executed first */ |
3766 | /* queue check watchers, to be executed first */ |
3484 | if (expect_false (checkcnt)) |
3767 | if (ecb_expect_false (checkcnt)) |
3485 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3768 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3486 | #endif |
3769 | #endif |
3487 | |
3770 | |
3488 | EV_INVOKE_PENDING; |
3771 | EV_INVOKE_PENDING; |
3489 | } |
3772 | } |
3490 | while (expect_true ( |
3773 | while (ecb_expect_true ( |
3491 | activecnt |
3774 | activecnt |
3492 | && !loop_done |
3775 | && !loop_done |
3493 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3776 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3494 | )); |
3777 | )); |
3495 | |
3778 | |
… | |
… | |
3502 | |
3785 | |
3503 | return activecnt; |
3786 | return activecnt; |
3504 | } |
3787 | } |
3505 | |
3788 | |
3506 | void |
3789 | void |
3507 | ev_break (EV_P_ int how) EV_THROW |
3790 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3508 | { |
3791 | { |
3509 | loop_done = how; |
3792 | loop_done = how; |
3510 | } |
3793 | } |
3511 | |
3794 | |
3512 | void |
3795 | void |
3513 | ev_ref (EV_P) EV_THROW |
3796 | ev_ref (EV_P) EV_NOEXCEPT |
3514 | { |
3797 | { |
3515 | ++activecnt; |
3798 | ++activecnt; |
3516 | } |
3799 | } |
3517 | |
3800 | |
3518 | void |
3801 | void |
3519 | ev_unref (EV_P) EV_THROW |
3802 | ev_unref (EV_P) EV_NOEXCEPT |
3520 | { |
3803 | { |
3521 | --activecnt; |
3804 | --activecnt; |
3522 | } |
3805 | } |
3523 | |
3806 | |
3524 | void |
3807 | void |
3525 | ev_now_update (EV_P) EV_THROW |
3808 | ev_now_update (EV_P) EV_NOEXCEPT |
3526 | { |
3809 | { |
3527 | time_update (EV_A_ 1e100); |
3810 | time_update (EV_A_ 1e100); |
3528 | } |
3811 | } |
3529 | |
3812 | |
3530 | void |
3813 | void |
3531 | ev_suspend (EV_P) EV_THROW |
3814 | ev_suspend (EV_P) EV_NOEXCEPT |
3532 | { |
3815 | { |
3533 | ev_now_update (EV_A); |
3816 | ev_now_update (EV_A); |
3534 | } |
3817 | } |
3535 | |
3818 | |
3536 | void |
3819 | void |
3537 | ev_resume (EV_P) EV_THROW |
3820 | ev_resume (EV_P) EV_NOEXCEPT |
3538 | { |
3821 | { |
3539 | ev_tstamp mn_prev = mn_now; |
3822 | ev_tstamp mn_prev = mn_now; |
3540 | |
3823 | |
3541 | ev_now_update (EV_A); |
3824 | ev_now_update (EV_A); |
3542 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3825 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3559 | inline_size void |
3842 | inline_size void |
3560 | wlist_del (WL *head, WL elem) |
3843 | wlist_del (WL *head, WL elem) |
3561 | { |
3844 | { |
3562 | while (*head) |
3845 | while (*head) |
3563 | { |
3846 | { |
3564 | if (expect_true (*head == elem)) |
3847 | if (ecb_expect_true (*head == elem)) |
3565 | { |
3848 | { |
3566 | *head = elem->next; |
3849 | *head = elem->next; |
3567 | break; |
3850 | break; |
3568 | } |
3851 | } |
3569 | |
3852 | |
… | |
… | |
3581 | w->pending = 0; |
3864 | w->pending = 0; |
3582 | } |
3865 | } |
3583 | } |
3866 | } |
3584 | |
3867 | |
3585 | int |
3868 | int |
3586 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3869 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3587 | { |
3870 | { |
3588 | W w_ = (W)w; |
3871 | W w_ = (W)w; |
3589 | int pending = w_->pending; |
3872 | int pending = w_->pending; |
3590 | |
3873 | |
3591 | if (expect_true (pending)) |
3874 | if (ecb_expect_true (pending)) |
3592 | { |
3875 | { |
3593 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3876 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3594 | p->w = (W)&pending_w; |
3877 | p->w = (W)&pending_w; |
3595 | w_->pending = 0; |
3878 | w_->pending = 0; |
3596 | return p->events; |
3879 | return p->events; |
… | |
… | |
3623 | w->active = 0; |
3906 | w->active = 0; |
3624 | } |
3907 | } |
3625 | |
3908 | |
3626 | /*****************************************************************************/ |
3909 | /*****************************************************************************/ |
3627 | |
3910 | |
3628 | void noinline |
3911 | ecb_noinline |
|
|
3912 | void |
3629 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3913 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3630 | { |
3914 | { |
3631 | int fd = w->fd; |
3915 | int fd = w->fd; |
3632 | |
3916 | |
3633 | if (expect_false (ev_is_active (w))) |
3917 | if (ecb_expect_false (ev_is_active (w))) |
3634 | return; |
3918 | return; |
3635 | |
3919 | |
3636 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3920 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3637 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3921 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3638 | |
3922 | |
|
|
3923 | #if EV_VERIFY >= 2 |
|
|
3924 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
3925 | #endif |
3639 | EV_FREQUENT_CHECK; |
3926 | EV_FREQUENT_CHECK; |
3640 | |
3927 | |
3641 | ev_start (EV_A_ (W)w, 1); |
3928 | ev_start (EV_A_ (W)w, 1); |
3642 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3929 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3643 | wlist_add (&anfds[fd].head, (WL)w); |
3930 | wlist_add (&anfds[fd].head, (WL)w); |
3644 | |
3931 | |
3645 | /* common bug, apparently */ |
3932 | /* common bug, apparently */ |
3646 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3933 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3647 | |
3934 | |
… | |
… | |
3649 | w->events &= ~EV__IOFDSET; |
3936 | w->events &= ~EV__IOFDSET; |
3650 | |
3937 | |
3651 | EV_FREQUENT_CHECK; |
3938 | EV_FREQUENT_CHECK; |
3652 | } |
3939 | } |
3653 | |
3940 | |
3654 | void noinline |
3941 | ecb_noinline |
|
|
3942 | void |
3655 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3943 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3656 | { |
3944 | { |
3657 | clear_pending (EV_A_ (W)w); |
3945 | clear_pending (EV_A_ (W)w); |
3658 | if (expect_false (!ev_is_active (w))) |
3946 | if (ecb_expect_false (!ev_is_active (w))) |
3659 | return; |
3947 | return; |
3660 | |
3948 | |
3661 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3949 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3662 | |
3950 | |
|
|
3951 | #if EV_VERIFY >= 2 |
|
|
3952 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
3953 | #endif |
3663 | EV_FREQUENT_CHECK; |
3954 | EV_FREQUENT_CHECK; |
3664 | |
3955 | |
3665 | wlist_del (&anfds[w->fd].head, (WL)w); |
3956 | wlist_del (&anfds[w->fd].head, (WL)w); |
3666 | ev_stop (EV_A_ (W)w); |
3957 | ev_stop (EV_A_ (W)w); |
3667 | |
3958 | |
3668 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3959 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3669 | |
3960 | |
3670 | EV_FREQUENT_CHECK; |
3961 | EV_FREQUENT_CHECK; |
3671 | } |
3962 | } |
3672 | |
3963 | |
3673 | void noinline |
3964 | ecb_noinline |
|
|
3965 | void |
3674 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3966 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3675 | { |
3967 | { |
3676 | if (expect_false (ev_is_active (w))) |
3968 | if (ecb_expect_false (ev_is_active (w))) |
3677 | return; |
3969 | return; |
3678 | |
3970 | |
3679 | ev_at (w) += mn_now; |
3971 | ev_at (w) += mn_now; |
3680 | |
3972 | |
3681 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3973 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3682 | |
3974 | |
3683 | EV_FREQUENT_CHECK; |
3975 | EV_FREQUENT_CHECK; |
3684 | |
3976 | |
3685 | ++timercnt; |
3977 | ++timercnt; |
3686 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3978 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3687 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
3979 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3688 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3980 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3689 | ANHE_at_cache (timers [ev_active (w)]); |
3981 | ANHE_at_cache (timers [ev_active (w)]); |
3690 | upheap (timers, ev_active (w)); |
3982 | upheap (timers, ev_active (w)); |
3691 | |
3983 | |
3692 | EV_FREQUENT_CHECK; |
3984 | EV_FREQUENT_CHECK; |
3693 | |
3985 | |
3694 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3986 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3695 | } |
3987 | } |
3696 | |
3988 | |
3697 | void noinline |
3989 | ecb_noinline |
|
|
3990 | void |
3698 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3991 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3699 | { |
3992 | { |
3700 | clear_pending (EV_A_ (W)w); |
3993 | clear_pending (EV_A_ (W)w); |
3701 | if (expect_false (!ev_is_active (w))) |
3994 | if (ecb_expect_false (!ev_is_active (w))) |
3702 | return; |
3995 | return; |
3703 | |
3996 | |
3704 | EV_FREQUENT_CHECK; |
3997 | EV_FREQUENT_CHECK; |
3705 | |
3998 | |
3706 | { |
3999 | { |
… | |
… | |
3708 | |
4001 | |
3709 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4002 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3710 | |
4003 | |
3711 | --timercnt; |
4004 | --timercnt; |
3712 | |
4005 | |
3713 | if (expect_true (active < timercnt + HEAP0)) |
4006 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3714 | { |
4007 | { |
3715 | timers [active] = timers [timercnt + HEAP0]; |
4008 | timers [active] = timers [timercnt + HEAP0]; |
3716 | adjustheap (timers, timercnt, active); |
4009 | adjustheap (timers, timercnt, active); |
3717 | } |
4010 | } |
3718 | } |
4011 | } |
… | |
… | |
3722 | ev_stop (EV_A_ (W)w); |
4015 | ev_stop (EV_A_ (W)w); |
3723 | |
4016 | |
3724 | EV_FREQUENT_CHECK; |
4017 | EV_FREQUENT_CHECK; |
3725 | } |
4018 | } |
3726 | |
4019 | |
3727 | void noinline |
4020 | ecb_noinline |
|
|
4021 | void |
3728 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4022 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3729 | { |
4023 | { |
3730 | EV_FREQUENT_CHECK; |
4024 | EV_FREQUENT_CHECK; |
3731 | |
4025 | |
3732 | clear_pending (EV_A_ (W)w); |
4026 | clear_pending (EV_A_ (W)w); |
3733 | |
4027 | |
… | |
… | |
3750 | |
4044 | |
3751 | EV_FREQUENT_CHECK; |
4045 | EV_FREQUENT_CHECK; |
3752 | } |
4046 | } |
3753 | |
4047 | |
3754 | ev_tstamp |
4048 | ev_tstamp |
3755 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4049 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3756 | { |
4050 | { |
3757 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4051 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3758 | } |
4052 | } |
3759 | |
4053 | |
3760 | #if EV_PERIODIC_ENABLE |
4054 | #if EV_PERIODIC_ENABLE |
3761 | void noinline |
4055 | ecb_noinline |
|
|
4056 | void |
3762 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4057 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3763 | { |
4058 | { |
3764 | if (expect_false (ev_is_active (w))) |
4059 | if (ecb_expect_false (ev_is_active (w))) |
3765 | return; |
4060 | return; |
3766 | |
4061 | |
3767 | if (w->reschedule_cb) |
4062 | if (w->reschedule_cb) |
3768 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4063 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3769 | else if (w->interval) |
4064 | else if (w->interval) |
… | |
… | |
3776 | |
4071 | |
3777 | EV_FREQUENT_CHECK; |
4072 | EV_FREQUENT_CHECK; |
3778 | |
4073 | |
3779 | ++periodiccnt; |
4074 | ++periodiccnt; |
3780 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4075 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3781 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4076 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3782 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4077 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3783 | ANHE_at_cache (periodics [ev_active (w)]); |
4078 | ANHE_at_cache (periodics [ev_active (w)]); |
3784 | upheap (periodics, ev_active (w)); |
4079 | upheap (periodics, ev_active (w)); |
3785 | |
4080 | |
3786 | EV_FREQUENT_CHECK; |
4081 | EV_FREQUENT_CHECK; |
3787 | |
4082 | |
3788 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4083 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3789 | } |
4084 | } |
3790 | |
4085 | |
3791 | void noinline |
4086 | ecb_noinline |
|
|
4087 | void |
3792 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4088 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3793 | { |
4089 | { |
3794 | clear_pending (EV_A_ (W)w); |
4090 | clear_pending (EV_A_ (W)w); |
3795 | if (expect_false (!ev_is_active (w))) |
4091 | if (ecb_expect_false (!ev_is_active (w))) |
3796 | return; |
4092 | return; |
3797 | |
4093 | |
3798 | EV_FREQUENT_CHECK; |
4094 | EV_FREQUENT_CHECK; |
3799 | |
4095 | |
3800 | { |
4096 | { |
… | |
… | |
3802 | |
4098 | |
3803 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4099 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3804 | |
4100 | |
3805 | --periodiccnt; |
4101 | --periodiccnt; |
3806 | |
4102 | |
3807 | if (expect_true (active < periodiccnt + HEAP0)) |
4103 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3808 | { |
4104 | { |
3809 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4105 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3810 | adjustheap (periodics, periodiccnt, active); |
4106 | adjustheap (periodics, periodiccnt, active); |
3811 | } |
4107 | } |
3812 | } |
4108 | } |
… | |
… | |
3814 | ev_stop (EV_A_ (W)w); |
4110 | ev_stop (EV_A_ (W)w); |
3815 | |
4111 | |
3816 | EV_FREQUENT_CHECK; |
4112 | EV_FREQUENT_CHECK; |
3817 | } |
4113 | } |
3818 | |
4114 | |
3819 | void noinline |
4115 | ecb_noinline |
|
|
4116 | void |
3820 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4117 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3821 | { |
4118 | { |
3822 | /* TODO: use adjustheap and recalculation */ |
4119 | /* TODO: use adjustheap and recalculation */ |
3823 | ev_periodic_stop (EV_A_ w); |
4120 | ev_periodic_stop (EV_A_ w); |
3824 | ev_periodic_start (EV_A_ w); |
4121 | ev_periodic_start (EV_A_ w); |
3825 | } |
4122 | } |
… | |
… | |
3829 | # define SA_RESTART 0 |
4126 | # define SA_RESTART 0 |
3830 | #endif |
4127 | #endif |
3831 | |
4128 | |
3832 | #if EV_SIGNAL_ENABLE |
4129 | #if EV_SIGNAL_ENABLE |
3833 | |
4130 | |
3834 | void noinline |
4131 | ecb_noinline |
|
|
4132 | void |
3835 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4133 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3836 | { |
4134 | { |
3837 | if (expect_false (ev_is_active (w))) |
4135 | if (ecb_expect_false (ev_is_active (w))) |
3838 | return; |
4136 | return; |
3839 | |
4137 | |
3840 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4138 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3841 | |
4139 | |
3842 | #if EV_MULTIPLICITY |
4140 | #if EV_MULTIPLICITY |
… | |
… | |
3911 | } |
4209 | } |
3912 | |
4210 | |
3913 | EV_FREQUENT_CHECK; |
4211 | EV_FREQUENT_CHECK; |
3914 | } |
4212 | } |
3915 | |
4213 | |
3916 | void noinline |
4214 | ecb_noinline |
|
|
4215 | void |
3917 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4216 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3918 | { |
4217 | { |
3919 | clear_pending (EV_A_ (W)w); |
4218 | clear_pending (EV_A_ (W)w); |
3920 | if (expect_false (!ev_is_active (w))) |
4219 | if (ecb_expect_false (!ev_is_active (w))) |
3921 | return; |
4220 | return; |
3922 | |
4221 | |
3923 | EV_FREQUENT_CHECK; |
4222 | EV_FREQUENT_CHECK; |
3924 | |
4223 | |
3925 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4224 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3953 | #endif |
4252 | #endif |
3954 | |
4253 | |
3955 | #if EV_CHILD_ENABLE |
4254 | #if EV_CHILD_ENABLE |
3956 | |
4255 | |
3957 | void |
4256 | void |
3958 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4257 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3959 | { |
4258 | { |
3960 | #if EV_MULTIPLICITY |
4259 | #if EV_MULTIPLICITY |
3961 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4260 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3962 | #endif |
4261 | #endif |
3963 | if (expect_false (ev_is_active (w))) |
4262 | if (ecb_expect_false (ev_is_active (w))) |
3964 | return; |
4263 | return; |
3965 | |
4264 | |
3966 | EV_FREQUENT_CHECK; |
4265 | EV_FREQUENT_CHECK; |
3967 | |
4266 | |
3968 | ev_start (EV_A_ (W)w, 1); |
4267 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3970 | |
4269 | |
3971 | EV_FREQUENT_CHECK; |
4270 | EV_FREQUENT_CHECK; |
3972 | } |
4271 | } |
3973 | |
4272 | |
3974 | void |
4273 | void |
3975 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4274 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3976 | { |
4275 | { |
3977 | clear_pending (EV_A_ (W)w); |
4276 | clear_pending (EV_A_ (W)w); |
3978 | if (expect_false (!ev_is_active (w))) |
4277 | if (ecb_expect_false (!ev_is_active (w))) |
3979 | return; |
4278 | return; |
3980 | |
4279 | |
3981 | EV_FREQUENT_CHECK; |
4280 | EV_FREQUENT_CHECK; |
3982 | |
4281 | |
3983 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4282 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3997 | |
4296 | |
3998 | #define DEF_STAT_INTERVAL 5.0074891 |
4297 | #define DEF_STAT_INTERVAL 5.0074891 |
3999 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4298 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4000 | #define MIN_STAT_INTERVAL 0.1074891 |
4299 | #define MIN_STAT_INTERVAL 0.1074891 |
4001 | |
4300 | |
4002 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4301 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4003 | |
4302 | |
4004 | #if EV_USE_INOTIFY |
4303 | #if EV_USE_INOTIFY |
4005 | |
4304 | |
4006 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4305 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4007 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4306 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4008 | |
4307 | |
4009 | static void noinline |
4308 | ecb_noinline |
|
|
4309 | static void |
4010 | infy_add (EV_P_ ev_stat *w) |
4310 | infy_add (EV_P_ ev_stat *w) |
4011 | { |
4311 | { |
4012 | w->wd = inotify_add_watch (fs_fd, w->path, |
4312 | w->wd = inotify_add_watch (fs_fd, w->path, |
4013 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4313 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4014 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
4314 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
… | |
… | |
4078 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4378 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4079 | ev_timer_again (EV_A_ &w->timer); |
4379 | ev_timer_again (EV_A_ &w->timer); |
4080 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4380 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4081 | } |
4381 | } |
4082 | |
4382 | |
4083 | static void noinline |
4383 | ecb_noinline |
|
|
4384 | static void |
4084 | infy_del (EV_P_ ev_stat *w) |
4385 | infy_del (EV_P_ ev_stat *w) |
4085 | { |
4386 | { |
4086 | int slot; |
4387 | int slot; |
4087 | int wd = w->wd; |
4388 | int wd = w->wd; |
4088 | |
4389 | |
… | |
… | |
4095 | |
4396 | |
4096 | /* remove this watcher, if others are watching it, they will rearm */ |
4397 | /* remove this watcher, if others are watching it, they will rearm */ |
4097 | inotify_rm_watch (fs_fd, wd); |
4398 | inotify_rm_watch (fs_fd, wd); |
4098 | } |
4399 | } |
4099 | |
4400 | |
4100 | static void noinline |
4401 | ecb_noinline |
|
|
4402 | static void |
4101 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4403 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4102 | { |
4404 | { |
4103 | if (slot < 0) |
4405 | if (slot < 0) |
4104 | /* overflow, need to check for all hash slots */ |
4406 | /* overflow, need to check for all hash slots */ |
4105 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4407 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
4141 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4443 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4142 | ofs += sizeof (struct inotify_event) + ev->len; |
4444 | ofs += sizeof (struct inotify_event) + ev->len; |
4143 | } |
4445 | } |
4144 | } |
4446 | } |
4145 | |
4447 | |
4146 | inline_size void ecb_cold |
4448 | inline_size ecb_cold |
|
|
4449 | void |
4147 | ev_check_2625 (EV_P) |
4450 | ev_check_2625 (EV_P) |
4148 | { |
4451 | { |
4149 | /* kernels < 2.6.25 are borked |
4452 | /* kernels < 2.6.25 are borked |
4150 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4453 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4151 | */ |
4454 | */ |
… | |
… | |
4241 | #else |
4544 | #else |
4242 | # define EV_LSTAT(p,b) lstat (p, b) |
4545 | # define EV_LSTAT(p,b) lstat (p, b) |
4243 | #endif |
4546 | #endif |
4244 | |
4547 | |
4245 | void |
4548 | void |
4246 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4549 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
4247 | { |
4550 | { |
4248 | if (lstat (w->path, &w->attr) < 0) |
4551 | if (lstat (w->path, &w->attr) < 0) |
4249 | w->attr.st_nlink = 0; |
4552 | w->attr.st_nlink = 0; |
4250 | else if (!w->attr.st_nlink) |
4553 | else if (!w->attr.st_nlink) |
4251 | w->attr.st_nlink = 1; |
4554 | w->attr.st_nlink = 1; |
4252 | } |
4555 | } |
4253 | |
4556 | |
4254 | static void noinline |
4557 | ecb_noinline |
|
|
4558 | static void |
4255 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4559 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4256 | { |
4560 | { |
4257 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4561 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4258 | |
4562 | |
4259 | ev_statdata prev = w->attr; |
4563 | ev_statdata prev = w->attr; |
… | |
… | |
4290 | ev_feed_event (EV_A_ w, EV_STAT); |
4594 | ev_feed_event (EV_A_ w, EV_STAT); |
4291 | } |
4595 | } |
4292 | } |
4596 | } |
4293 | |
4597 | |
4294 | void |
4598 | void |
4295 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
4599 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
4296 | { |
4600 | { |
4297 | if (expect_false (ev_is_active (w))) |
4601 | if (ecb_expect_false (ev_is_active (w))) |
4298 | return; |
4602 | return; |
4299 | |
4603 | |
4300 | ev_stat_stat (EV_A_ w); |
4604 | ev_stat_stat (EV_A_ w); |
4301 | |
4605 | |
4302 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4606 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
4321 | |
4625 | |
4322 | EV_FREQUENT_CHECK; |
4626 | EV_FREQUENT_CHECK; |
4323 | } |
4627 | } |
4324 | |
4628 | |
4325 | void |
4629 | void |
4326 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
4630 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4327 | { |
4631 | { |
4328 | clear_pending (EV_A_ (W)w); |
4632 | clear_pending (EV_A_ (W)w); |
4329 | if (expect_false (!ev_is_active (w))) |
4633 | if (ecb_expect_false (!ev_is_active (w))) |
4330 | return; |
4634 | return; |
4331 | |
4635 | |
4332 | EV_FREQUENT_CHECK; |
4636 | EV_FREQUENT_CHECK; |
4333 | |
4637 | |
4334 | #if EV_USE_INOTIFY |
4638 | #if EV_USE_INOTIFY |
… | |
… | |
4347 | } |
4651 | } |
4348 | #endif |
4652 | #endif |
4349 | |
4653 | |
4350 | #if EV_IDLE_ENABLE |
4654 | #if EV_IDLE_ENABLE |
4351 | void |
4655 | void |
4352 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
4656 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4353 | { |
4657 | { |
4354 | if (expect_false (ev_is_active (w))) |
4658 | if (ecb_expect_false (ev_is_active (w))) |
4355 | return; |
4659 | return; |
4356 | |
4660 | |
4357 | pri_adjust (EV_A_ (W)w); |
4661 | pri_adjust (EV_A_ (W)w); |
4358 | |
4662 | |
4359 | EV_FREQUENT_CHECK; |
4663 | EV_FREQUENT_CHECK; |
… | |
… | |
4362 | int active = ++idlecnt [ABSPRI (w)]; |
4666 | int active = ++idlecnt [ABSPRI (w)]; |
4363 | |
4667 | |
4364 | ++idleall; |
4668 | ++idleall; |
4365 | ev_start (EV_A_ (W)w, active); |
4669 | ev_start (EV_A_ (W)w, active); |
4366 | |
4670 | |
4367 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4671 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
4368 | idles [ABSPRI (w)][active - 1] = w; |
4672 | idles [ABSPRI (w)][active - 1] = w; |
4369 | } |
4673 | } |
4370 | |
4674 | |
4371 | EV_FREQUENT_CHECK; |
4675 | EV_FREQUENT_CHECK; |
4372 | } |
4676 | } |
4373 | |
4677 | |
4374 | void |
4678 | void |
4375 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
4679 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4376 | { |
4680 | { |
4377 | clear_pending (EV_A_ (W)w); |
4681 | clear_pending (EV_A_ (W)w); |
4378 | if (expect_false (!ev_is_active (w))) |
4682 | if (ecb_expect_false (!ev_is_active (w))) |
4379 | return; |
4683 | return; |
4380 | |
4684 | |
4381 | EV_FREQUENT_CHECK; |
4685 | EV_FREQUENT_CHECK; |
4382 | |
4686 | |
4383 | { |
4687 | { |
… | |
… | |
4394 | } |
4698 | } |
4395 | #endif |
4699 | #endif |
4396 | |
4700 | |
4397 | #if EV_PREPARE_ENABLE |
4701 | #if EV_PREPARE_ENABLE |
4398 | void |
4702 | void |
4399 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
4703 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4400 | { |
4704 | { |
4401 | if (expect_false (ev_is_active (w))) |
4705 | if (ecb_expect_false (ev_is_active (w))) |
4402 | return; |
4706 | return; |
4403 | |
4707 | |
4404 | EV_FREQUENT_CHECK; |
4708 | EV_FREQUENT_CHECK; |
4405 | |
4709 | |
4406 | ev_start (EV_A_ (W)w, ++preparecnt); |
4710 | ev_start (EV_A_ (W)w, ++preparecnt); |
4407 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4711 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4408 | prepares [preparecnt - 1] = w; |
4712 | prepares [preparecnt - 1] = w; |
4409 | |
4713 | |
4410 | EV_FREQUENT_CHECK; |
4714 | EV_FREQUENT_CHECK; |
4411 | } |
4715 | } |
4412 | |
4716 | |
4413 | void |
4717 | void |
4414 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4718 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4415 | { |
4719 | { |
4416 | clear_pending (EV_A_ (W)w); |
4720 | clear_pending (EV_A_ (W)w); |
4417 | if (expect_false (!ev_is_active (w))) |
4721 | if (ecb_expect_false (!ev_is_active (w))) |
4418 | return; |
4722 | return; |
4419 | |
4723 | |
4420 | EV_FREQUENT_CHECK; |
4724 | EV_FREQUENT_CHECK; |
4421 | |
4725 | |
4422 | { |
4726 | { |
… | |
… | |
4432 | } |
4736 | } |
4433 | #endif |
4737 | #endif |
4434 | |
4738 | |
4435 | #if EV_CHECK_ENABLE |
4739 | #if EV_CHECK_ENABLE |
4436 | void |
4740 | void |
4437 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
4741 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4438 | { |
4742 | { |
4439 | if (expect_false (ev_is_active (w))) |
4743 | if (ecb_expect_false (ev_is_active (w))) |
4440 | return; |
4744 | return; |
4441 | |
4745 | |
4442 | EV_FREQUENT_CHECK; |
4746 | EV_FREQUENT_CHECK; |
4443 | |
4747 | |
4444 | ev_start (EV_A_ (W)w, ++checkcnt); |
4748 | ev_start (EV_A_ (W)w, ++checkcnt); |
4445 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4749 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4446 | checks [checkcnt - 1] = w; |
4750 | checks [checkcnt - 1] = w; |
4447 | |
4751 | |
4448 | EV_FREQUENT_CHECK; |
4752 | EV_FREQUENT_CHECK; |
4449 | } |
4753 | } |
4450 | |
4754 | |
4451 | void |
4755 | void |
4452 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
4756 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4453 | { |
4757 | { |
4454 | clear_pending (EV_A_ (W)w); |
4758 | clear_pending (EV_A_ (W)w); |
4455 | if (expect_false (!ev_is_active (w))) |
4759 | if (ecb_expect_false (!ev_is_active (w))) |
4456 | return; |
4760 | return; |
4457 | |
4761 | |
4458 | EV_FREQUENT_CHECK; |
4762 | EV_FREQUENT_CHECK; |
4459 | |
4763 | |
4460 | { |
4764 | { |
… | |
… | |
4469 | EV_FREQUENT_CHECK; |
4773 | EV_FREQUENT_CHECK; |
4470 | } |
4774 | } |
4471 | #endif |
4775 | #endif |
4472 | |
4776 | |
4473 | #if EV_EMBED_ENABLE |
4777 | #if EV_EMBED_ENABLE |
4474 | void noinline |
4778 | ecb_noinline |
|
|
4779 | void |
4475 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4780 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4476 | { |
4781 | { |
4477 | ev_run (w->other, EVRUN_NOWAIT); |
4782 | ev_run (w->other, EVRUN_NOWAIT); |
4478 | } |
4783 | } |
4479 | |
4784 | |
4480 | static void |
4785 | static void |
… | |
… | |
4528 | ev_idle_stop (EV_A_ idle); |
4833 | ev_idle_stop (EV_A_ idle); |
4529 | } |
4834 | } |
4530 | #endif |
4835 | #endif |
4531 | |
4836 | |
4532 | void |
4837 | void |
4533 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4838 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4534 | { |
4839 | { |
4535 | if (expect_false (ev_is_active (w))) |
4840 | if (ecb_expect_false (ev_is_active (w))) |
4536 | return; |
4841 | return; |
4537 | |
4842 | |
4538 | { |
4843 | { |
4539 | EV_P = w->other; |
4844 | EV_P = w->other; |
4540 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4845 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
4559 | |
4864 | |
4560 | EV_FREQUENT_CHECK; |
4865 | EV_FREQUENT_CHECK; |
4561 | } |
4866 | } |
4562 | |
4867 | |
4563 | void |
4868 | void |
4564 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4869 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4565 | { |
4870 | { |
4566 | clear_pending (EV_A_ (W)w); |
4871 | clear_pending (EV_A_ (W)w); |
4567 | if (expect_false (!ev_is_active (w))) |
4872 | if (ecb_expect_false (!ev_is_active (w))) |
4568 | return; |
4873 | return; |
4569 | |
4874 | |
4570 | EV_FREQUENT_CHECK; |
4875 | EV_FREQUENT_CHECK; |
4571 | |
4876 | |
4572 | ev_io_stop (EV_A_ &w->io); |
4877 | ev_io_stop (EV_A_ &w->io); |
… | |
… | |
4579 | } |
4884 | } |
4580 | #endif |
4885 | #endif |
4581 | |
4886 | |
4582 | #if EV_FORK_ENABLE |
4887 | #if EV_FORK_ENABLE |
4583 | void |
4888 | void |
4584 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4889 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4585 | { |
4890 | { |
4586 | if (expect_false (ev_is_active (w))) |
4891 | if (ecb_expect_false (ev_is_active (w))) |
4587 | return; |
4892 | return; |
4588 | |
4893 | |
4589 | EV_FREQUENT_CHECK; |
4894 | EV_FREQUENT_CHECK; |
4590 | |
4895 | |
4591 | ev_start (EV_A_ (W)w, ++forkcnt); |
4896 | ev_start (EV_A_ (W)w, ++forkcnt); |
4592 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4897 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4593 | forks [forkcnt - 1] = w; |
4898 | forks [forkcnt - 1] = w; |
4594 | |
4899 | |
4595 | EV_FREQUENT_CHECK; |
4900 | EV_FREQUENT_CHECK; |
4596 | } |
4901 | } |
4597 | |
4902 | |
4598 | void |
4903 | void |
4599 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4904 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4600 | { |
4905 | { |
4601 | clear_pending (EV_A_ (W)w); |
4906 | clear_pending (EV_A_ (W)w); |
4602 | if (expect_false (!ev_is_active (w))) |
4907 | if (ecb_expect_false (!ev_is_active (w))) |
4603 | return; |
4908 | return; |
4604 | |
4909 | |
4605 | EV_FREQUENT_CHECK; |
4910 | EV_FREQUENT_CHECK; |
4606 | |
4911 | |
4607 | { |
4912 | { |
… | |
… | |
4617 | } |
4922 | } |
4618 | #endif |
4923 | #endif |
4619 | |
4924 | |
4620 | #if EV_CLEANUP_ENABLE |
4925 | #if EV_CLEANUP_ENABLE |
4621 | void |
4926 | void |
4622 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4927 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4623 | { |
4928 | { |
4624 | if (expect_false (ev_is_active (w))) |
4929 | if (ecb_expect_false (ev_is_active (w))) |
4625 | return; |
4930 | return; |
4626 | |
4931 | |
4627 | EV_FREQUENT_CHECK; |
4932 | EV_FREQUENT_CHECK; |
4628 | |
4933 | |
4629 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4934 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4630 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
4935 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4631 | cleanups [cleanupcnt - 1] = w; |
4936 | cleanups [cleanupcnt - 1] = w; |
4632 | |
4937 | |
4633 | /* cleanup watchers should never keep a refcount on the loop */ |
4938 | /* cleanup watchers should never keep a refcount on the loop */ |
4634 | ev_unref (EV_A); |
4939 | ev_unref (EV_A); |
4635 | EV_FREQUENT_CHECK; |
4940 | EV_FREQUENT_CHECK; |
4636 | } |
4941 | } |
4637 | |
4942 | |
4638 | void |
4943 | void |
4639 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4944 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4640 | { |
4945 | { |
4641 | clear_pending (EV_A_ (W)w); |
4946 | clear_pending (EV_A_ (W)w); |
4642 | if (expect_false (!ev_is_active (w))) |
4947 | if (ecb_expect_false (!ev_is_active (w))) |
4643 | return; |
4948 | return; |
4644 | |
4949 | |
4645 | EV_FREQUENT_CHECK; |
4950 | EV_FREQUENT_CHECK; |
4646 | ev_ref (EV_A); |
4951 | ev_ref (EV_A); |
4647 | |
4952 | |
… | |
… | |
4658 | } |
4963 | } |
4659 | #endif |
4964 | #endif |
4660 | |
4965 | |
4661 | #if EV_ASYNC_ENABLE |
4966 | #if EV_ASYNC_ENABLE |
4662 | void |
4967 | void |
4663 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4968 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4664 | { |
4969 | { |
4665 | if (expect_false (ev_is_active (w))) |
4970 | if (ecb_expect_false (ev_is_active (w))) |
4666 | return; |
4971 | return; |
4667 | |
4972 | |
4668 | w->sent = 0; |
4973 | w->sent = 0; |
4669 | |
4974 | |
4670 | evpipe_init (EV_A); |
4975 | evpipe_init (EV_A); |
4671 | |
4976 | |
4672 | EV_FREQUENT_CHECK; |
4977 | EV_FREQUENT_CHECK; |
4673 | |
4978 | |
4674 | ev_start (EV_A_ (W)w, ++asynccnt); |
4979 | ev_start (EV_A_ (W)w, ++asynccnt); |
4675 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
4980 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4676 | asyncs [asynccnt - 1] = w; |
4981 | asyncs [asynccnt - 1] = w; |
4677 | |
4982 | |
4678 | EV_FREQUENT_CHECK; |
4983 | EV_FREQUENT_CHECK; |
4679 | } |
4984 | } |
4680 | |
4985 | |
4681 | void |
4986 | void |
4682 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4987 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4683 | { |
4988 | { |
4684 | clear_pending (EV_A_ (W)w); |
4989 | clear_pending (EV_A_ (W)w); |
4685 | if (expect_false (!ev_is_active (w))) |
4990 | if (ecb_expect_false (!ev_is_active (w))) |
4686 | return; |
4991 | return; |
4687 | |
4992 | |
4688 | EV_FREQUENT_CHECK; |
4993 | EV_FREQUENT_CHECK; |
4689 | |
4994 | |
4690 | { |
4995 | { |
… | |
… | |
4698 | |
5003 | |
4699 | EV_FREQUENT_CHECK; |
5004 | EV_FREQUENT_CHECK; |
4700 | } |
5005 | } |
4701 | |
5006 | |
4702 | void |
5007 | void |
4703 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
5008 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4704 | { |
5009 | { |
4705 | w->sent = 1; |
5010 | w->sent = 1; |
4706 | evpipe_write (EV_A_ &async_pending); |
5011 | evpipe_write (EV_A_ &async_pending); |
4707 | } |
5012 | } |
4708 | #endif |
5013 | #endif |
… | |
… | |
4745 | |
5050 | |
4746 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5051 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4747 | } |
5052 | } |
4748 | |
5053 | |
4749 | void |
5054 | void |
4750 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5055 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4751 | { |
5056 | { |
4752 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5057 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4753 | |
|
|
4754 | if (expect_false (!once)) |
|
|
4755 | { |
|
|
4756 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4757 | return; |
|
|
4758 | } |
|
|
4759 | |
5058 | |
4760 | once->cb = cb; |
5059 | once->cb = cb; |
4761 | once->arg = arg; |
5060 | once->arg = arg; |
4762 | |
5061 | |
4763 | ev_init (&once->io, once_cb_io); |
5062 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4776 | } |
5075 | } |
4777 | |
5076 | |
4778 | /*****************************************************************************/ |
5077 | /*****************************************************************************/ |
4779 | |
5078 | |
4780 | #if EV_WALK_ENABLE |
5079 | #if EV_WALK_ENABLE |
4781 | void ecb_cold |
5080 | ecb_cold |
|
|
5081 | void |
4782 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5082 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4783 | { |
5083 | { |
4784 | int i, j; |
5084 | int i, j; |
4785 | ev_watcher_list *wl, *wn; |
5085 | ev_watcher_list *wl, *wn; |
4786 | |
5086 | |
4787 | if (types & (EV_IO | EV_EMBED)) |
5087 | if (types & (EV_IO | EV_EMBED)) |