1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
201 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
202 | # include <unistd.h> |
202 | # include <unistd.h> |
203 | #else |
203 | #else |
204 | # include <io.h> |
204 | # include <io.h> |
205 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
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|
206 | # include <winsock2.h> |
206 | # include <windows.h> |
207 | # include <windows.h> |
207 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # endif |
210 | # endif |
210 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
356 | |
357 | |
357 | #ifndef EV_HEAP_CACHE_AT |
358 | #ifndef EV_HEAP_CACHE_AT |
358 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
359 | #endif |
360 | #endif |
360 | |
361 | |
|
|
362 | #ifdef ANDROID |
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|
363 | /* supposedly, android doesn't typedef fd_mask */ |
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364 | # undef EV_USE_SELECT |
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365 | # define EV_USE_SELECT 0 |
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|
366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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367 | # undef EV_USE_CLOCK_SYSCALL |
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368 | # define EV_USE_CLOCK_SYSCALL 0 |
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369 | #endif |
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370 | |
|
|
371 | /* aix's poll.h seems to cause lots of trouble */ |
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|
372 | #ifdef _AIX |
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|
373 | /* AIX has a completely broken poll.h header */ |
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|
374 | # undef EV_USE_POLL |
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|
375 | # define EV_USE_POLL 0 |
|
|
376 | #endif |
|
|
377 | |
361 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
378 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
362 | /* which makes programs even slower. might work on other unices, too. */ |
379 | /* which makes programs even slower. might work on other unices, too. */ |
363 | #if EV_USE_CLOCK_SYSCALL |
380 | #if EV_USE_CLOCK_SYSCALL |
364 | # include <syscall.h> |
381 | # include <sys/syscall.h> |
365 | # ifdef SYS_clock_gettime |
382 | # ifdef SYS_clock_gettime |
366 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
383 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # undef EV_USE_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
368 | # define EV_USE_MONOTONIC 1 |
385 | # define EV_USE_MONOTONIC 1 |
369 | # else |
386 | # else |
… | |
… | |
372 | # endif |
389 | # endif |
373 | #endif |
390 | #endif |
374 | |
391 | |
375 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
392 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
376 | |
393 | |
377 | #ifdef _AIX |
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|
378 | /* AIX has a completely broken poll.h header */ |
|
|
379 | # undef EV_USE_POLL |
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380 | # define EV_USE_POLL 0 |
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|
381 | #endif |
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382 | |
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|
383 | #ifndef CLOCK_MONOTONIC |
394 | #ifndef CLOCK_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
395 | # undef EV_USE_MONOTONIC |
385 | # define EV_USE_MONOTONIC 0 |
396 | # define EV_USE_MONOTONIC 0 |
386 | #endif |
397 | #endif |
387 | |
398 | |
… | |
… | |
408 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
419 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | # ifndef IN_DONT_FOLLOW |
420 | # ifndef IN_DONT_FOLLOW |
410 | # undef EV_USE_INOTIFY |
421 | # undef EV_USE_INOTIFY |
411 | # define EV_USE_INOTIFY 0 |
422 | # define EV_USE_INOTIFY 0 |
412 | # endif |
423 | # endif |
413 | #endif |
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|
414 | |
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|
415 | #if EV_SELECT_IS_WINSOCKET |
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|
416 | # include <winsock.h> |
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|
417 | #endif |
424 | #endif |
418 | |
425 | |
419 | #if EV_USE_EVENTFD |
426 | #if EV_USE_EVENTFD |
420 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
421 | # include <stdint.h> |
428 | # include <stdint.h> |
… | |
… | |
507 | */ |
514 | */ |
508 | |
515 | |
509 | #ifndef ECB_H |
516 | #ifndef ECB_H |
510 | #define ECB_H |
517 | #define ECB_H |
511 | |
518 | |
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519 | /* 16 bits major, 16 bits minor */ |
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520 | #define ECB_VERSION 0x00010002 |
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521 | |
512 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
523 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
524 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
525 | typedef signed short int16_t; |
516 | typedef unsigned short uint16_t; |
526 | typedef unsigned short uint16_t; |
… | |
… | |
521 | typedef unsigned long long uint64_t; |
531 | typedef unsigned long long uint64_t; |
522 | #else /* _MSC_VER || __BORLANDC__ */ |
532 | #else /* _MSC_VER || __BORLANDC__ */ |
523 | typedef signed __int64 int64_t; |
533 | typedef signed __int64 int64_t; |
524 | typedef unsigned __int64 uint64_t; |
534 | typedef unsigned __int64 uint64_t; |
525 | #endif |
535 | #endif |
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|
536 | #ifdef _WIN64 |
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|
537 | #define ECB_PTRSIZE 8 |
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538 | typedef uint64_t uintptr_t; |
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539 | typedef int64_t intptr_t; |
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540 | #else |
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541 | #define ECB_PTRSIZE 4 |
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542 | typedef uint32_t uintptr_t; |
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543 | typedef int32_t intptr_t; |
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544 | #endif |
526 | #else |
545 | #else |
527 | #include <inttypes.h> |
546 | #include <inttypes.h> |
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547 | #if UINTMAX_MAX > 0xffffffffU |
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|
548 | #define ECB_PTRSIZE 8 |
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549 | #else |
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550 | #define ECB_PTRSIZE 4 |
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|
551 | #endif |
528 | #endif |
552 | #endif |
529 | |
553 | |
530 | /* many compilers define _GNUC_ to some versions but then only implement |
554 | /* many compilers define _GNUC_ to some versions but then only implement |
531 | * what their idiot authors think are the "more important" extensions, |
555 | * what their idiot authors think are the "more important" extensions, |
532 | * causing enormous grief in return for some better fake benchmark numbers. |
556 | * causing enormous grief in return for some better fake benchmark numbers. |
533 | * or so. |
557 | * or so. |
534 | * we try to detect these and simply assume they are not gcc - if they have |
558 | * we try to detect these and simply assume they are not gcc - if they have |
535 | * an issue with that they should have done it right in the first place. |
559 | * an issue with that they should have done it right in the first place. |
536 | */ |
560 | */ |
537 | #ifndef ECB_GCC_VERSION |
561 | #ifndef ECB_GCC_VERSION |
538 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
562 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
539 | #define ECB_GCC_VERSION(major,minor) 0 |
563 | #define ECB_GCC_VERSION(major,minor) 0 |
540 | #else |
564 | #else |
541 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
565 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
542 | #endif |
566 | #endif |
543 | #endif |
567 | #endif |
544 | |
568 | |
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569 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
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570 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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|
571 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
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572 | #define ECB_CPP (__cplusplus+0) |
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|
573 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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574 | |
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575 | #if ECB_CPP |
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|
576 | #define ECB_EXTERN_C extern "C" |
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577 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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|
578 | #define ECB_EXTERN_C_END } |
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579 | #else |
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580 | #define ECB_EXTERN_C extern |
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|
581 | #define ECB_EXTERN_C_BEG |
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582 | #define ECB_EXTERN_C_END |
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583 | #endif |
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584 | |
545 | /*****************************************************************************/ |
585 | /*****************************************************************************/ |
546 | |
586 | |
547 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
587 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
548 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
588 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
549 | |
589 | |
550 | #if ECB_NO_THREADS |
590 | #if ECB_NO_THREADS |
551 | # define ECB_NO_SMP 1 |
591 | #define ECB_NO_SMP 1 |
552 | #endif |
592 | #endif |
553 | |
593 | |
554 | #if ECB_NO_THREADS || ECB_NO_SMP |
594 | #if ECB_NO_SMP |
555 | #define ECB_MEMORY_FENCE do { } while (0) |
595 | #define ECB_MEMORY_FENCE do { } while (0) |
556 | #endif |
596 | #endif |
557 | |
597 | |
558 | #ifndef ECB_MEMORY_FENCE |
598 | #ifndef ECB_MEMORY_FENCE |
559 | #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
599 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
560 | #if __i386 || __i386__ |
600 | #if __i386 || __i386__ |
561 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
601 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
562 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
602 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
603 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
564 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
604 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
565 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
566 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
606 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
567 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
607 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
568 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
608 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
609 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
570 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
610 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
571 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
611 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
612 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
573 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
613 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
574 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
614 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
575 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
576 | #elif __sparc || __sparc__ |
616 | #elif __sparc || __sparc__ |
577 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
617 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
578 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
618 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
579 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
619 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
580 | #elif defined(__s390__) || defined(__s390x__) |
620 | #elif defined __s390__ || defined __s390x__ |
581 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
582 | #elif defined(__mips__) |
622 | #elif defined __mips__ |
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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624 | #elif defined __alpha__ |
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|
625 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
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626 | #elif defined __hppa__ |
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|
627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
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628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
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629 | #elif defined __ia64__ |
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630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
584 | #endif |
631 | #endif |
585 | #endif |
632 | #endif |
586 | #endif |
633 | #endif |
587 | |
634 | |
588 | #ifndef ECB_MEMORY_FENCE |
635 | #ifndef ECB_MEMORY_FENCE |
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636 | #if ECB_GCC_VERSION(4,7) |
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637 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
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638 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
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639 | |
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640 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
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641 | * without risking compile time errors with other compilers. We *could* |
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642 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
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643 | * around this shit time and again. |
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644 | * #elif defined __clang && __has_feature (cxx_atomic) |
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645 | * // see comment below (stdatomic.h) about the C11 memory model. |
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646 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
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647 | */ |
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648 | |
589 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
649 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
590 | #define ECB_MEMORY_FENCE __sync_synchronize () |
650 | #define ECB_MEMORY_FENCE __sync_synchronize () |
591 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
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592 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
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593 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
651 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
594 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
652 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
595 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
653 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
596 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
654 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
597 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
655 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
598 | #elif defined(_WIN32) |
656 | #elif defined _WIN32 |
599 | #include <WinNT.h> |
657 | #include <WinNT.h> |
600 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
658 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
601 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
659 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
602 | #include <mbarrier.h> |
660 | #include <mbarrier.h> |
603 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
661 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
604 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
662 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
605 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
663 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
606 | #elif __xlC__ |
664 | #elif __xlC__ |
607 | #define ECB_MEMORY_FENCE __sync () |
665 | #define ECB_MEMORY_FENCE __sync () |
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666 | #endif |
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667 | #endif |
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668 | |
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669 | #ifndef ECB_MEMORY_FENCE |
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670 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
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671 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
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672 | /* not just C11 atomics and atomic accesses */ |
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673 | #include <stdatomic.h> |
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674 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
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675 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
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676 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
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677 | /* for most usages, or gcc and clang have a bug */ |
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678 | /* I *currently* lean towards the latter, and inefficiently implement */ |
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679 | /* all three of ecb's fences as a seq_cst fence */ |
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680 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
608 | #endif |
681 | #endif |
609 | #endif |
682 | #endif |
610 | |
683 | |
611 | #ifndef ECB_MEMORY_FENCE |
684 | #ifndef ECB_MEMORY_FENCE |
612 | #if !ECB_AVOID_PTHREADS |
685 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
624 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
697 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
625 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
698 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
626 | #endif |
699 | #endif |
627 | #endif |
700 | #endif |
628 | |
701 | |
629 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
702 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
630 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
703 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
631 | #endif |
704 | #endif |
632 | |
705 | |
633 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
706 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
634 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
707 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
635 | #endif |
708 | #endif |
636 | |
709 | |
637 | /*****************************************************************************/ |
710 | /*****************************************************************************/ |
638 | |
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639 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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640 | |
711 | |
641 | #if __cplusplus |
712 | #if __cplusplus |
642 | #define ecb_inline static inline |
713 | #define ecb_inline static inline |
643 | #elif ECB_GCC_VERSION(2,5) |
714 | #elif ECB_GCC_VERSION(2,5) |
644 | #define ecb_inline static __inline__ |
715 | #define ecb_inline static __inline__ |
… | |
… | |
683 | #elif ECB_GCC_VERSION(3,0) |
754 | #elif ECB_GCC_VERSION(3,0) |
684 | #define ecb_decltype(x) __typeof(x) |
755 | #define ecb_decltype(x) __typeof(x) |
685 | #endif |
756 | #endif |
686 | |
757 | |
687 | #define ecb_noinline ecb_attribute ((__noinline__)) |
758 | #define ecb_noinline ecb_attribute ((__noinline__)) |
688 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
689 | #define ecb_unused ecb_attribute ((__unused__)) |
759 | #define ecb_unused ecb_attribute ((__unused__)) |
690 | #define ecb_const ecb_attribute ((__const__)) |
760 | #define ecb_const ecb_attribute ((__const__)) |
691 | #define ecb_pure ecb_attribute ((__pure__)) |
761 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
762 | |
|
|
763 | #if ECB_C11 |
|
|
764 | #define ecb_noreturn _Noreturn |
|
|
765 | #else |
|
|
766 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
767 | #endif |
692 | |
768 | |
693 | #if ECB_GCC_VERSION(4,3) |
769 | #if ECB_GCC_VERSION(4,3) |
694 | #define ecb_artificial ecb_attribute ((__artificial__)) |
770 | #define ecb_artificial ecb_attribute ((__artificial__)) |
695 | #define ecb_hot ecb_attribute ((__hot__)) |
771 | #define ecb_hot ecb_attribute ((__hot__)) |
696 | #define ecb_cold ecb_attribute ((__cold__)) |
772 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
787 | |
863 | |
788 | return r + ecb_ld32 (x); |
864 | return r + ecb_ld32 (x); |
789 | } |
865 | } |
790 | #endif |
866 | #endif |
791 | |
867 | |
|
|
868 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
869 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
870 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
871 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
872 | |
792 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
873 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
793 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
874 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
794 | { |
875 | { |
795 | return ( (x * 0x0802U & 0x22110U) |
876 | return ( (x * 0x0802U & 0x22110U) |
796 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
877 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
… | |
… | |
880 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
961 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
881 | ecb_inline void ecb_unreachable (void) { } |
962 | ecb_inline void ecb_unreachable (void) { } |
882 | #endif |
963 | #endif |
883 | |
964 | |
884 | /* try to tell the compiler that some condition is definitely true */ |
965 | /* try to tell the compiler that some condition is definitely true */ |
885 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
966 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
886 | |
967 | |
887 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
968 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
888 | ecb_inline unsigned char |
969 | ecb_inline unsigned char |
889 | ecb_byteorder_helper (void) |
970 | ecb_byteorder_helper (void) |
890 | { |
971 | { |
891 | const uint32_t u = 0x11223344; |
972 | /* the union code still generates code under pressure in gcc, */ |
892 | return *(unsigned char *)&u; |
973 | /* but less than using pointers, and always seems to */ |
|
|
974 | /* successfully return a constant. */ |
|
|
975 | /* the reason why we have this horrible preprocessor mess */ |
|
|
976 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
977 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
978 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
979 | return 0x44; |
|
|
980 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
981 | return 0x44; |
|
|
982 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
983 | return 0x11; |
|
|
984 | #else |
|
|
985 | union |
|
|
986 | { |
|
|
987 | uint32_t i; |
|
|
988 | uint8_t c; |
|
|
989 | } u = { 0x11223344 }; |
|
|
990 | return u.c; |
|
|
991 | #endif |
893 | } |
992 | } |
894 | |
993 | |
895 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
994 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
896 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
995 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
897 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
996 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
… | |
… | |
928 | } |
1027 | } |
929 | #else |
1028 | #else |
930 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1029 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
931 | #endif |
1030 | #endif |
932 | |
1031 | |
|
|
1032 | /*******************************************************************************/ |
|
|
1033 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1034 | |
|
|
1035 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1036 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1037 | #if 0 \ |
|
|
1038 | || __i386 || __i386__ \ |
|
|
1039 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1040 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1041 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1042 | || defined __s390__ || defined __s390x__ \ |
|
|
1043 | || defined __mips__ \ |
|
|
1044 | || defined __alpha__ \ |
|
|
1045 | || defined __hppa__ \ |
|
|
1046 | || defined __ia64__ \ |
|
|
1047 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1048 | #define ECB_STDFP 1 |
|
|
1049 | #include <string.h> /* for memcpy */ |
|
|
1050 | #else |
|
|
1051 | #define ECB_STDFP 0 |
|
|
1052 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1053 | #endif |
|
|
1054 | |
|
|
1055 | #ifndef ECB_NO_LIBM |
|
|
1056 | |
|
|
1057 | /* convert a float to ieee single/binary32 */ |
|
|
1058 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1059 | ecb_function_ uint32_t |
|
|
1060 | ecb_float_to_binary32 (float x) |
|
|
1061 | { |
|
|
1062 | uint32_t r; |
|
|
1063 | |
|
|
1064 | #if ECB_STDFP |
|
|
1065 | memcpy (&r, &x, 4); |
|
|
1066 | #else |
|
|
1067 | /* slow emulation, works for anything but -0 */ |
|
|
1068 | uint32_t m; |
|
|
1069 | int e; |
|
|
1070 | |
|
|
1071 | if (x == 0e0f ) return 0x00000000U; |
|
|
1072 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1073 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1074 | if (x != x ) return 0x7fbfffffU; |
|
|
1075 | |
|
|
1076 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1077 | |
|
|
1078 | r = m & 0x80000000U; |
|
|
1079 | |
|
|
1080 | if (r) |
|
|
1081 | m = -m; |
|
|
1082 | |
|
|
1083 | if (e <= -126) |
|
|
1084 | { |
|
|
1085 | m &= 0xffffffU; |
|
|
1086 | m >>= (-125 - e); |
|
|
1087 | e = -126; |
|
|
1088 | } |
|
|
1089 | |
|
|
1090 | r |= (e + 126) << 23; |
|
|
1091 | r |= m & 0x7fffffU; |
|
|
1092 | #endif |
|
|
1093 | |
|
|
1094 | return r; |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | /* converts an ieee single/binary32 to a float */ |
|
|
1098 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1099 | ecb_function_ float |
|
|
1100 | ecb_binary32_to_float (uint32_t x) |
|
|
1101 | { |
|
|
1102 | float r; |
|
|
1103 | |
|
|
1104 | #if ECB_STDFP |
|
|
1105 | memcpy (&r, &x, 4); |
|
|
1106 | #else |
|
|
1107 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1108 | int neg = x >> 31; |
|
|
1109 | int e = (x >> 23) & 0xffU; |
|
|
1110 | |
|
|
1111 | x &= 0x7fffffU; |
|
|
1112 | |
|
|
1113 | if (e) |
|
|
1114 | x |= 0x800000U; |
|
|
1115 | else |
|
|
1116 | e = 1; |
|
|
1117 | |
|
|
1118 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1119 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1120 | |
|
|
1121 | r = neg ? -r : r; |
|
|
1122 | #endif |
|
|
1123 | |
|
|
1124 | return r; |
|
|
1125 | } |
|
|
1126 | |
|
|
1127 | /* convert a double to ieee double/binary64 */ |
|
|
1128 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1129 | ecb_function_ uint64_t |
|
|
1130 | ecb_double_to_binary64 (double x) |
|
|
1131 | { |
|
|
1132 | uint64_t r; |
|
|
1133 | |
|
|
1134 | #if ECB_STDFP |
|
|
1135 | memcpy (&r, &x, 8); |
|
|
1136 | #else |
|
|
1137 | /* slow emulation, works for anything but -0 */ |
|
|
1138 | uint64_t m; |
|
|
1139 | int e; |
|
|
1140 | |
|
|
1141 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1142 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1143 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1144 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1145 | |
|
|
1146 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1147 | |
|
|
1148 | r = m & 0x8000000000000000;; |
|
|
1149 | |
|
|
1150 | if (r) |
|
|
1151 | m = -m; |
|
|
1152 | |
|
|
1153 | if (e <= -1022) |
|
|
1154 | { |
|
|
1155 | m &= 0x1fffffffffffffU; |
|
|
1156 | m >>= (-1021 - e); |
|
|
1157 | e = -1022; |
|
|
1158 | } |
|
|
1159 | |
|
|
1160 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1161 | r |= m & 0xfffffffffffffU; |
|
|
1162 | #endif |
|
|
1163 | |
|
|
1164 | return r; |
|
|
1165 | } |
|
|
1166 | |
|
|
1167 | /* converts an ieee double/binary64 to a double */ |
|
|
1168 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1169 | ecb_function_ double |
|
|
1170 | ecb_binary64_to_double (uint64_t x) |
|
|
1171 | { |
|
|
1172 | double r; |
|
|
1173 | |
|
|
1174 | #if ECB_STDFP |
|
|
1175 | memcpy (&r, &x, 8); |
|
|
1176 | #else |
|
|
1177 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1178 | int neg = x >> 63; |
|
|
1179 | int e = (x >> 52) & 0x7ffU; |
|
|
1180 | |
|
|
1181 | x &= 0xfffffffffffffU; |
|
|
1182 | |
|
|
1183 | if (e) |
|
|
1184 | x |= 0x10000000000000U; |
|
|
1185 | else |
|
|
1186 | e = 1; |
|
|
1187 | |
|
|
1188 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1189 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1190 | |
|
|
1191 | r = neg ? -r : r; |
|
|
1192 | #endif |
|
|
1193 | |
|
|
1194 | return r; |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | #endif |
|
|
1198 | |
933 | #endif |
1199 | #endif |
934 | |
1200 | |
935 | /* ECB.H END */ |
1201 | /* ECB.H END */ |
936 | |
1202 | |
937 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1203 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
1103 | { |
1369 | { |
1104 | write (STDERR_FILENO, msg, strlen (msg)); |
1370 | write (STDERR_FILENO, msg, strlen (msg)); |
1105 | } |
1371 | } |
1106 | #endif |
1372 | #endif |
1107 | |
1373 | |
1108 | static void (*syserr_cb)(const char *msg); |
1374 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1109 | |
1375 | |
1110 | void ecb_cold |
1376 | void ecb_cold |
1111 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1377 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1112 | { |
1378 | { |
1113 | syserr_cb = cb; |
1379 | syserr_cb = cb; |
1114 | } |
1380 | } |
1115 | |
1381 | |
1116 | static void noinline ecb_cold |
1382 | static void noinline ecb_cold |
… | |
… | |
1134 | abort (); |
1400 | abort (); |
1135 | } |
1401 | } |
1136 | } |
1402 | } |
1137 | |
1403 | |
1138 | static void * |
1404 | static void * |
1139 | ev_realloc_emul (void *ptr, long size) |
1405 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1140 | { |
1406 | { |
1141 | #if __GLIBC__ |
|
|
1142 | return realloc (ptr, size); |
|
|
1143 | #else |
|
|
1144 | /* some systems, notably openbsd and darwin, fail to properly |
1407 | /* some systems, notably openbsd and darwin, fail to properly |
1145 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1408 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1146 | * the single unix specification, so work around them here. |
1409 | * the single unix specification, so work around them here. |
|
|
1410 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1411 | * despite documenting it otherwise. |
1147 | */ |
1412 | */ |
1148 | |
1413 | |
1149 | if (size) |
1414 | if (size) |
1150 | return realloc (ptr, size); |
1415 | return realloc (ptr, size); |
1151 | |
1416 | |
1152 | free (ptr); |
1417 | free (ptr); |
1153 | return 0; |
1418 | return 0; |
1154 | #endif |
|
|
1155 | } |
1419 | } |
1156 | |
1420 | |
1157 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1421 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1158 | |
1422 | |
1159 | void ecb_cold |
1423 | void ecb_cold |
1160 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1424 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1161 | { |
1425 | { |
1162 | alloc = cb; |
1426 | alloc = cb; |
1163 | } |
1427 | } |
1164 | |
1428 | |
1165 | inline_speed void * |
1429 | inline_speed void * |
… | |
… | |
1282 | |
1546 | |
1283 | /*****************************************************************************/ |
1547 | /*****************************************************************************/ |
1284 | |
1548 | |
1285 | #ifndef EV_HAVE_EV_TIME |
1549 | #ifndef EV_HAVE_EV_TIME |
1286 | ev_tstamp |
1550 | ev_tstamp |
1287 | ev_time (void) |
1551 | ev_time (void) EV_THROW |
1288 | { |
1552 | { |
1289 | #if EV_USE_REALTIME |
1553 | #if EV_USE_REALTIME |
1290 | if (expect_true (have_realtime)) |
1554 | if (expect_true (have_realtime)) |
1291 | { |
1555 | { |
1292 | struct timespec ts; |
1556 | struct timespec ts; |
… | |
… | |
1316 | return ev_time (); |
1580 | return ev_time (); |
1317 | } |
1581 | } |
1318 | |
1582 | |
1319 | #if EV_MULTIPLICITY |
1583 | #if EV_MULTIPLICITY |
1320 | ev_tstamp |
1584 | ev_tstamp |
1321 | ev_now (EV_P) |
1585 | ev_now (EV_P) EV_THROW |
1322 | { |
1586 | { |
1323 | return ev_rt_now; |
1587 | return ev_rt_now; |
1324 | } |
1588 | } |
1325 | #endif |
1589 | #endif |
1326 | |
1590 | |
1327 | void |
1591 | void |
1328 | ev_sleep (ev_tstamp delay) |
1592 | ev_sleep (ev_tstamp delay) EV_THROW |
1329 | { |
1593 | { |
1330 | if (delay > 0.) |
1594 | if (delay > 0.) |
1331 | { |
1595 | { |
1332 | #if EV_USE_NANOSLEEP |
1596 | #if EV_USE_NANOSLEEP |
1333 | struct timespec ts; |
1597 | struct timespec ts; |
… | |
… | |
1414 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1678 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1415 | { |
1679 | { |
1416 | } |
1680 | } |
1417 | |
1681 | |
1418 | void noinline |
1682 | void noinline |
1419 | ev_feed_event (EV_P_ void *w, int revents) |
1683 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1420 | { |
1684 | { |
1421 | W w_ = (W)w; |
1685 | W w_ = (W)w; |
1422 | int pri = ABSPRI (w_); |
1686 | int pri = ABSPRI (w_); |
1423 | |
1687 | |
1424 | if (expect_false (w_->pending)) |
1688 | if (expect_false (w_->pending)) |
… | |
… | |
1428 | w_->pending = ++pendingcnt [pri]; |
1692 | w_->pending = ++pendingcnt [pri]; |
1429 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1693 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1430 | pendings [pri][w_->pending - 1].w = w_; |
1694 | pendings [pri][w_->pending - 1].w = w_; |
1431 | pendings [pri][w_->pending - 1].events = revents; |
1695 | pendings [pri][w_->pending - 1].events = revents; |
1432 | } |
1696 | } |
|
|
1697 | |
|
|
1698 | pendingpri = NUMPRI - 1; |
1433 | } |
1699 | } |
1434 | |
1700 | |
1435 | inline_speed void |
1701 | inline_speed void |
1436 | feed_reverse (EV_P_ W w) |
1702 | feed_reverse (EV_P_ W w) |
1437 | { |
1703 | { |
… | |
… | |
1483 | if (expect_true (!anfd->reify)) |
1749 | if (expect_true (!anfd->reify)) |
1484 | fd_event_nocheck (EV_A_ fd, revents); |
1750 | fd_event_nocheck (EV_A_ fd, revents); |
1485 | } |
1751 | } |
1486 | |
1752 | |
1487 | void |
1753 | void |
1488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1754 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
1489 | { |
1755 | { |
1490 | if (fd >= 0 && fd < anfdmax) |
1756 | if (fd >= 0 && fd < anfdmax) |
1491 | fd_event_nocheck (EV_A_ fd, revents); |
1757 | fd_event_nocheck (EV_A_ fd, revents); |
1492 | } |
1758 | } |
1493 | |
1759 | |
… | |
… | |
1812 | static void noinline ecb_cold |
2078 | static void noinline ecb_cold |
1813 | evpipe_init (EV_P) |
2079 | evpipe_init (EV_P) |
1814 | { |
2080 | { |
1815 | if (!ev_is_active (&pipe_w)) |
2081 | if (!ev_is_active (&pipe_w)) |
1816 | { |
2082 | { |
|
|
2083 | int fds [2]; |
|
|
2084 | |
1817 | # if EV_USE_EVENTFD |
2085 | # if EV_USE_EVENTFD |
|
|
2086 | fds [0] = -1; |
1818 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2087 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1819 | if (evfd < 0 && errno == EINVAL) |
2088 | if (fds [1] < 0 && errno == EINVAL) |
1820 | evfd = eventfd (0, 0); |
2089 | fds [1] = eventfd (0, 0); |
1821 | |
2090 | |
1822 | if (evfd >= 0) |
2091 | if (fds [1] < 0) |
|
|
2092 | # endif |
1823 | { |
2093 | { |
|
|
2094 | while (pipe (fds)) |
|
|
2095 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2096 | |
|
|
2097 | fd_intern (fds [0]); |
|
|
2098 | } |
|
|
2099 | |
|
|
2100 | fd_intern (fds [1]); |
|
|
2101 | |
1824 | evpipe [0] = -1; |
2102 | evpipe [0] = fds [0]; |
1825 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2103 | |
1826 | ev_io_set (&pipe_w, evfd, EV_READ); |
2104 | if (evpipe [1] < 0) |
|
|
2105 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2106 | else |
|
|
2107 | { |
|
|
2108 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2109 | /* so that evpipe_write can always rely on its value. */ |
|
|
2110 | /* this branch does not do anything sensible on windows, */ |
|
|
2111 | /* so must not be executed on windows */ |
|
|
2112 | |
|
|
2113 | dup2 (fds [1], evpipe [1]); |
|
|
2114 | close (fds [1]); |
|
|
2115 | } |
|
|
2116 | |
|
|
2117 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2118 | ev_io_start (EV_A_ &pipe_w); |
|
|
2119 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2120 | } |
|
|
2121 | } |
|
|
2122 | |
|
|
2123 | inline_speed void |
|
|
2124 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2125 | { |
|
|
2126 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2127 | |
|
|
2128 | if (expect_true (*flag)) |
|
|
2129 | return; |
|
|
2130 | |
|
|
2131 | *flag = 1; |
|
|
2132 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2133 | |
|
|
2134 | pipe_write_skipped = 1; |
|
|
2135 | |
|
|
2136 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2137 | |
|
|
2138 | if (pipe_write_wanted) |
|
|
2139 | { |
|
|
2140 | int old_errno; |
|
|
2141 | |
|
|
2142 | pipe_write_skipped = 0; |
|
|
2143 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2144 | |
|
|
2145 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2146 | |
|
|
2147 | #if EV_USE_EVENTFD |
|
|
2148 | if (evpipe [0] < 0) |
|
|
2149 | { |
|
|
2150 | uint64_t counter = 1; |
|
|
2151 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1827 | } |
2152 | } |
1828 | else |
2153 | else |
1829 | # endif |
2154 | #endif |
1830 | { |
2155 | { |
1831 | while (pipe (evpipe)) |
2156 | #ifdef _WIN32 |
1832 | ev_syserr ("(libev) error creating signal/async pipe"); |
2157 | WSABUF buf; |
1833 | |
2158 | DWORD sent; |
1834 | fd_intern (evpipe [0]); |
2159 | buf.buf = &buf; |
1835 | fd_intern (evpipe [1]); |
2160 | buf.len = 1; |
1836 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2161 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1837 | } |
2162 | #else |
1838 | |
|
|
1839 | ev_io_start (EV_A_ &pipe_w); |
|
|
1840 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1841 | } |
|
|
1842 | } |
|
|
1843 | |
|
|
1844 | inline_speed void |
|
|
1845 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1846 | { |
|
|
1847 | if (expect_true (*flag)) |
|
|
1848 | return; |
|
|
1849 | |
|
|
1850 | *flag = 1; |
|
|
1851 | |
|
|
1852 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1853 | |
|
|
1854 | pipe_write_skipped = 1; |
|
|
1855 | |
|
|
1856 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1857 | |
|
|
1858 | if (pipe_write_wanted) |
|
|
1859 | { |
|
|
1860 | int old_errno; |
|
|
1861 | |
|
|
1862 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1863 | |
|
|
1864 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1865 | |
|
|
1866 | #if EV_USE_EVENTFD |
|
|
1867 | if (evfd >= 0) |
|
|
1868 | { |
|
|
1869 | uint64_t counter = 1; |
|
|
1870 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1871 | } |
|
|
1872 | else |
|
|
1873 | #endif |
|
|
1874 | { |
|
|
1875 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1876 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1877 | /* so when you think this write should be a send instead, please find out */ |
|
|
1878 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1879 | /* tell me. thank you. */ |
|
|
1880 | /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */ |
|
|
1881 | /* check the ev documentation on how to use this flag */ |
|
|
1882 | write (evpipe [1], &(evpipe [1]), 1); |
2163 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2164 | #endif |
1883 | } |
2165 | } |
1884 | |
2166 | |
1885 | errno = old_errno; |
2167 | errno = old_errno; |
1886 | } |
2168 | } |
1887 | } |
2169 | } |
… | |
… | |
1894 | int i; |
2176 | int i; |
1895 | |
2177 | |
1896 | if (revents & EV_READ) |
2178 | if (revents & EV_READ) |
1897 | { |
2179 | { |
1898 | #if EV_USE_EVENTFD |
2180 | #if EV_USE_EVENTFD |
1899 | if (evfd >= 0) |
2181 | if (evpipe [0] < 0) |
1900 | { |
2182 | { |
1901 | uint64_t counter; |
2183 | uint64_t counter; |
1902 | read (evfd, &counter, sizeof (uint64_t)); |
2184 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1903 | } |
2185 | } |
1904 | else |
2186 | else |
1905 | #endif |
2187 | #endif |
1906 | { |
2188 | { |
1907 | char dummy; |
2189 | char dummy[4]; |
1908 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2190 | #ifdef _WIN32 |
|
|
2191 | WSABUF buf; |
|
|
2192 | DWORD recvd; |
|
|
2193 | DWORD flags = 0; |
|
|
2194 | buf.buf = dummy; |
|
|
2195 | buf.len = sizeof (dummy); |
|
|
2196 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2197 | #else |
1909 | read (evpipe [0], &dummy, 1); |
2198 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2199 | #endif |
1910 | } |
2200 | } |
1911 | } |
2201 | } |
1912 | |
2202 | |
1913 | pipe_write_skipped = 0; |
2203 | pipe_write_skipped = 0; |
|
|
2204 | |
|
|
2205 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1914 | |
2206 | |
1915 | #if EV_SIGNAL_ENABLE |
2207 | #if EV_SIGNAL_ENABLE |
1916 | if (sig_pending) |
2208 | if (sig_pending) |
1917 | { |
2209 | { |
1918 | sig_pending = 0; |
2210 | sig_pending = 0; |
|
|
2211 | |
|
|
2212 | ECB_MEMORY_FENCE; |
1919 | |
2213 | |
1920 | for (i = EV_NSIG - 1; i--; ) |
2214 | for (i = EV_NSIG - 1; i--; ) |
1921 | if (expect_false (signals [i].pending)) |
2215 | if (expect_false (signals [i].pending)) |
1922 | ev_feed_signal_event (EV_A_ i + 1); |
2216 | ev_feed_signal_event (EV_A_ i + 1); |
1923 | } |
2217 | } |
… | |
… | |
1925 | |
2219 | |
1926 | #if EV_ASYNC_ENABLE |
2220 | #if EV_ASYNC_ENABLE |
1927 | if (async_pending) |
2221 | if (async_pending) |
1928 | { |
2222 | { |
1929 | async_pending = 0; |
2223 | async_pending = 0; |
|
|
2224 | |
|
|
2225 | ECB_MEMORY_FENCE; |
1930 | |
2226 | |
1931 | for (i = asynccnt; i--; ) |
2227 | for (i = asynccnt; i--; ) |
1932 | if (asyncs [i]->sent) |
2228 | if (asyncs [i]->sent) |
1933 | { |
2229 | { |
1934 | asyncs [i]->sent = 0; |
2230 | asyncs [i]->sent = 0; |
|
|
2231 | ECB_MEMORY_FENCE_RELEASE; |
1935 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2232 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1936 | } |
2233 | } |
1937 | } |
2234 | } |
1938 | #endif |
2235 | #endif |
1939 | } |
2236 | } |
1940 | |
2237 | |
1941 | /*****************************************************************************/ |
2238 | /*****************************************************************************/ |
1942 | |
2239 | |
1943 | void |
2240 | void |
1944 | ev_feed_signal (int signum) |
2241 | ev_feed_signal (int signum) EV_THROW |
1945 | { |
2242 | { |
1946 | #if EV_MULTIPLICITY |
2243 | #if EV_MULTIPLICITY |
|
|
2244 | ECB_MEMORY_FENCE_ACQUIRE; |
1947 | EV_P = signals [signum - 1].loop; |
2245 | EV_P = signals [signum - 1].loop; |
1948 | |
2246 | |
1949 | if (!EV_A) |
2247 | if (!EV_A) |
1950 | return; |
2248 | return; |
1951 | #endif |
2249 | #endif |
1952 | |
2250 | |
1953 | if (!ev_active (&pipe_w)) |
|
|
1954 | return; |
|
|
1955 | |
|
|
1956 | signals [signum - 1].pending = 1; |
2251 | signals [signum - 1].pending = 1; |
1957 | evpipe_write (EV_A_ &sig_pending); |
2252 | evpipe_write (EV_A_ &sig_pending); |
1958 | } |
2253 | } |
1959 | |
2254 | |
1960 | static void |
2255 | static void |
… | |
… | |
1966 | |
2261 | |
1967 | ev_feed_signal (signum); |
2262 | ev_feed_signal (signum); |
1968 | } |
2263 | } |
1969 | |
2264 | |
1970 | void noinline |
2265 | void noinline |
1971 | ev_feed_signal_event (EV_P_ int signum) |
2266 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1972 | { |
2267 | { |
1973 | WL w; |
2268 | WL w; |
1974 | |
2269 | |
1975 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2270 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1976 | return; |
2271 | return; |
1977 | |
2272 | |
1978 | --signum; |
2273 | --signum; |
1979 | |
2274 | |
1980 | #if EV_MULTIPLICITY |
2275 | #if EV_MULTIPLICITY |
… | |
… | |
1984 | if (expect_false (signals [signum].loop != EV_A)) |
2279 | if (expect_false (signals [signum].loop != EV_A)) |
1985 | return; |
2280 | return; |
1986 | #endif |
2281 | #endif |
1987 | |
2282 | |
1988 | signals [signum].pending = 0; |
2283 | signals [signum].pending = 0; |
|
|
2284 | ECB_MEMORY_FENCE_RELEASE; |
1989 | |
2285 | |
1990 | for (w = signals [signum].head; w; w = w->next) |
2286 | for (w = signals [signum].head; w; w = w->next) |
1991 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2287 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1992 | } |
2288 | } |
1993 | |
2289 | |
… | |
… | |
2092 | #if EV_USE_SELECT |
2388 | #if EV_USE_SELECT |
2093 | # include "ev_select.c" |
2389 | # include "ev_select.c" |
2094 | #endif |
2390 | #endif |
2095 | |
2391 | |
2096 | int ecb_cold |
2392 | int ecb_cold |
2097 | ev_version_major (void) |
2393 | ev_version_major (void) EV_THROW |
2098 | { |
2394 | { |
2099 | return EV_VERSION_MAJOR; |
2395 | return EV_VERSION_MAJOR; |
2100 | } |
2396 | } |
2101 | |
2397 | |
2102 | int ecb_cold |
2398 | int ecb_cold |
2103 | ev_version_minor (void) |
2399 | ev_version_minor (void) EV_THROW |
2104 | { |
2400 | { |
2105 | return EV_VERSION_MINOR; |
2401 | return EV_VERSION_MINOR; |
2106 | } |
2402 | } |
2107 | |
2403 | |
2108 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2404 | /* return true if we are running with elevated privileges and should ignore env variables */ |
… | |
… | |
2116 | || getgid () != getegid (); |
2412 | || getgid () != getegid (); |
2117 | #endif |
2413 | #endif |
2118 | } |
2414 | } |
2119 | |
2415 | |
2120 | unsigned int ecb_cold |
2416 | unsigned int ecb_cold |
2121 | ev_supported_backends (void) |
2417 | ev_supported_backends (void) EV_THROW |
2122 | { |
2418 | { |
2123 | unsigned int flags = 0; |
2419 | unsigned int flags = 0; |
2124 | |
2420 | |
2125 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2421 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2126 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2422 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
2130 | |
2426 | |
2131 | return flags; |
2427 | return flags; |
2132 | } |
2428 | } |
2133 | |
2429 | |
2134 | unsigned int ecb_cold |
2430 | unsigned int ecb_cold |
2135 | ev_recommended_backends (void) |
2431 | ev_recommended_backends (void) EV_THROW |
2136 | { |
2432 | { |
2137 | unsigned int flags = ev_supported_backends (); |
2433 | unsigned int flags = ev_supported_backends (); |
2138 | |
2434 | |
2139 | #ifndef __NetBSD__ |
2435 | #ifndef __NetBSD__ |
2140 | /* kqueue is borked on everything but netbsd apparently */ |
2436 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2152 | |
2448 | |
2153 | return flags; |
2449 | return flags; |
2154 | } |
2450 | } |
2155 | |
2451 | |
2156 | unsigned int ecb_cold |
2452 | unsigned int ecb_cold |
2157 | ev_embeddable_backends (void) |
2453 | ev_embeddable_backends (void) EV_THROW |
2158 | { |
2454 | { |
2159 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2455 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2160 | |
2456 | |
2161 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2457 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2162 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2458 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
2164 | |
2460 | |
2165 | return flags; |
2461 | return flags; |
2166 | } |
2462 | } |
2167 | |
2463 | |
2168 | unsigned int |
2464 | unsigned int |
2169 | ev_backend (EV_P) |
2465 | ev_backend (EV_P) EV_THROW |
2170 | { |
2466 | { |
2171 | return backend; |
2467 | return backend; |
2172 | } |
2468 | } |
2173 | |
2469 | |
2174 | #if EV_FEATURE_API |
2470 | #if EV_FEATURE_API |
2175 | unsigned int |
2471 | unsigned int |
2176 | ev_iteration (EV_P) |
2472 | ev_iteration (EV_P) EV_THROW |
2177 | { |
2473 | { |
2178 | return loop_count; |
2474 | return loop_count; |
2179 | } |
2475 | } |
2180 | |
2476 | |
2181 | unsigned int |
2477 | unsigned int |
2182 | ev_depth (EV_P) |
2478 | ev_depth (EV_P) EV_THROW |
2183 | { |
2479 | { |
2184 | return loop_depth; |
2480 | return loop_depth; |
2185 | } |
2481 | } |
2186 | |
2482 | |
2187 | void |
2483 | void |
2188 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2484 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2189 | { |
2485 | { |
2190 | io_blocktime = interval; |
2486 | io_blocktime = interval; |
2191 | } |
2487 | } |
2192 | |
2488 | |
2193 | void |
2489 | void |
2194 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2490 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2195 | { |
2491 | { |
2196 | timeout_blocktime = interval; |
2492 | timeout_blocktime = interval; |
2197 | } |
2493 | } |
2198 | |
2494 | |
2199 | void |
2495 | void |
2200 | ev_set_userdata (EV_P_ void *data) |
2496 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2201 | { |
2497 | { |
2202 | userdata = data; |
2498 | userdata = data; |
2203 | } |
2499 | } |
2204 | |
2500 | |
2205 | void * |
2501 | void * |
2206 | ev_userdata (EV_P) |
2502 | ev_userdata (EV_P) EV_THROW |
2207 | { |
2503 | { |
2208 | return userdata; |
2504 | return userdata; |
2209 | } |
2505 | } |
2210 | |
2506 | |
2211 | void |
2507 | void |
2212 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2508 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2213 | { |
2509 | { |
2214 | invoke_cb = invoke_pending_cb; |
2510 | invoke_cb = invoke_pending_cb; |
2215 | } |
2511 | } |
2216 | |
2512 | |
2217 | void |
2513 | void |
2218 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2514 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2219 | { |
2515 | { |
2220 | release_cb = release; |
2516 | release_cb = release; |
2221 | acquire_cb = acquire; |
2517 | acquire_cb = acquire; |
2222 | } |
2518 | } |
2223 | #endif |
2519 | #endif |
2224 | |
2520 | |
2225 | /* initialise a loop structure, must be zero-initialised */ |
2521 | /* initialise a loop structure, must be zero-initialised */ |
2226 | static void noinline ecb_cold |
2522 | static void noinline ecb_cold |
2227 | loop_init (EV_P_ unsigned int flags) |
2523 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2228 | { |
2524 | { |
2229 | if (!backend) |
2525 | if (!backend) |
2230 | { |
2526 | { |
2231 | origflags = flags; |
2527 | origflags = flags; |
2232 | |
2528 | |
… | |
… | |
2277 | #if EV_ASYNC_ENABLE |
2573 | #if EV_ASYNC_ENABLE |
2278 | async_pending = 0; |
2574 | async_pending = 0; |
2279 | #endif |
2575 | #endif |
2280 | pipe_write_skipped = 0; |
2576 | pipe_write_skipped = 0; |
2281 | pipe_write_wanted = 0; |
2577 | pipe_write_wanted = 0; |
|
|
2578 | evpipe [0] = -1; |
|
|
2579 | evpipe [1] = -1; |
2282 | #if EV_USE_INOTIFY |
2580 | #if EV_USE_INOTIFY |
2283 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2581 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2284 | #endif |
2582 | #endif |
2285 | #if EV_USE_SIGNALFD |
2583 | #if EV_USE_SIGNALFD |
2286 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2584 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2337 | EV_INVOKE_PENDING; |
2635 | EV_INVOKE_PENDING; |
2338 | } |
2636 | } |
2339 | #endif |
2637 | #endif |
2340 | |
2638 | |
2341 | #if EV_CHILD_ENABLE |
2639 | #if EV_CHILD_ENABLE |
2342 | if (ev_is_active (&childev)) |
2640 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2343 | { |
2641 | { |
2344 | ev_ref (EV_A); /* child watcher */ |
2642 | ev_ref (EV_A); /* child watcher */ |
2345 | ev_signal_stop (EV_A_ &childev); |
2643 | ev_signal_stop (EV_A_ &childev); |
2346 | } |
2644 | } |
2347 | #endif |
2645 | #endif |
… | |
… | |
2349 | if (ev_is_active (&pipe_w)) |
2647 | if (ev_is_active (&pipe_w)) |
2350 | { |
2648 | { |
2351 | /*ev_ref (EV_A);*/ |
2649 | /*ev_ref (EV_A);*/ |
2352 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2650 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2353 | |
2651 | |
2354 | #if EV_USE_EVENTFD |
|
|
2355 | if (evfd >= 0) |
|
|
2356 | close (evfd); |
|
|
2357 | #endif |
|
|
2358 | |
|
|
2359 | if (evpipe [0] >= 0) |
|
|
2360 | { |
|
|
2361 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2652 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2362 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2653 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2363 | } |
|
|
2364 | } |
2654 | } |
2365 | |
2655 | |
2366 | #if EV_USE_SIGNALFD |
2656 | #if EV_USE_SIGNALFD |
2367 | if (ev_is_active (&sigfd_w)) |
2657 | if (ev_is_active (&sigfd_w)) |
2368 | close (sigfd); |
2658 | close (sigfd); |
… | |
… | |
2454 | #endif |
2744 | #endif |
2455 | #if EV_USE_INOTIFY |
2745 | #if EV_USE_INOTIFY |
2456 | infy_fork (EV_A); |
2746 | infy_fork (EV_A); |
2457 | #endif |
2747 | #endif |
2458 | |
2748 | |
|
|
2749 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2459 | if (ev_is_active (&pipe_w)) |
2750 | if (ev_is_active (&pipe_w)) |
2460 | { |
2751 | { |
2461 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2752 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2462 | |
2753 | |
2463 | ev_ref (EV_A); |
2754 | ev_ref (EV_A); |
2464 | ev_io_stop (EV_A_ &pipe_w); |
2755 | ev_io_stop (EV_A_ &pipe_w); |
2465 | |
2756 | |
2466 | #if EV_USE_EVENTFD |
|
|
2467 | if (evfd >= 0) |
|
|
2468 | close (evfd); |
|
|
2469 | #endif |
|
|
2470 | |
|
|
2471 | if (evpipe [0] >= 0) |
2757 | if (evpipe [0] >= 0) |
2472 | { |
|
|
2473 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2758 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2474 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2475 | } |
|
|
2476 | |
2759 | |
2477 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2478 | evpipe_init (EV_A); |
2760 | evpipe_init (EV_A); |
2479 | /* now iterate over everything, in case we missed something */ |
2761 | /* iterate over everything, in case we missed something before */ |
2480 | pipecb (EV_A_ &pipe_w, EV_READ); |
2762 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2481 | #endif |
|
|
2482 | } |
2763 | } |
|
|
2764 | #endif |
2483 | |
2765 | |
2484 | postfork = 0; |
2766 | postfork = 0; |
2485 | } |
2767 | } |
2486 | |
2768 | |
2487 | #if EV_MULTIPLICITY |
2769 | #if EV_MULTIPLICITY |
2488 | |
2770 | |
2489 | struct ev_loop * ecb_cold |
2771 | struct ev_loop * ecb_cold |
2490 | ev_loop_new (unsigned int flags) |
2772 | ev_loop_new (unsigned int flags) EV_THROW |
2491 | { |
2773 | { |
2492 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2774 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2493 | |
2775 | |
2494 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2776 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2495 | loop_init (EV_A_ flags); |
2777 | loop_init (EV_A_ flags); |
… | |
… | |
2539 | } |
2821 | } |
2540 | #endif |
2822 | #endif |
2541 | |
2823 | |
2542 | #if EV_FEATURE_API |
2824 | #if EV_FEATURE_API |
2543 | void ecb_cold |
2825 | void ecb_cold |
2544 | ev_verify (EV_P) |
2826 | ev_verify (EV_P) EV_THROW |
2545 | { |
2827 | { |
2546 | #if EV_VERIFY |
2828 | #if EV_VERIFY |
2547 | int i; |
2829 | int i; |
2548 | WL w; |
2830 | WL w, w2; |
2549 | |
2831 | |
2550 | assert (activecnt >= -1); |
2832 | assert (activecnt >= -1); |
2551 | |
2833 | |
2552 | assert (fdchangemax >= fdchangecnt); |
2834 | assert (fdchangemax >= fdchangecnt); |
2553 | for (i = 0; i < fdchangecnt; ++i) |
2835 | for (i = 0; i < fdchangecnt; ++i) |
2554 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2836 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2555 | |
2837 | |
2556 | assert (anfdmax >= 0); |
2838 | assert (anfdmax >= 0); |
2557 | for (i = 0; i < anfdmax; ++i) |
2839 | for (i = 0; i < anfdmax; ++i) |
|
|
2840 | { |
|
|
2841 | int j = 0; |
|
|
2842 | |
2558 | for (w = anfds [i].head; w; w = w->next) |
2843 | for (w = w2 = anfds [i].head; w; w = w->next) |
2559 | { |
2844 | { |
2560 | verify_watcher (EV_A_ (W)w); |
2845 | verify_watcher (EV_A_ (W)w); |
|
|
2846 | |
|
|
2847 | if (j++ & 1) |
|
|
2848 | { |
|
|
2849 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2850 | w2 = w2->next; |
|
|
2851 | } |
|
|
2852 | |
2561 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2853 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2562 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2854 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2563 | } |
2855 | } |
|
|
2856 | } |
2564 | |
2857 | |
2565 | assert (timermax >= timercnt); |
2858 | assert (timermax >= timercnt); |
2566 | verify_heap (EV_A_ timers, timercnt); |
2859 | verify_heap (EV_A_ timers, timercnt); |
2567 | |
2860 | |
2568 | #if EV_PERIODIC_ENABLE |
2861 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2618 | #if EV_MULTIPLICITY |
2911 | #if EV_MULTIPLICITY |
2619 | struct ev_loop * ecb_cold |
2912 | struct ev_loop * ecb_cold |
2620 | #else |
2913 | #else |
2621 | int |
2914 | int |
2622 | #endif |
2915 | #endif |
2623 | ev_default_loop (unsigned int flags) |
2916 | ev_default_loop (unsigned int flags) EV_THROW |
2624 | { |
2917 | { |
2625 | if (!ev_default_loop_ptr) |
2918 | if (!ev_default_loop_ptr) |
2626 | { |
2919 | { |
2627 | #if EV_MULTIPLICITY |
2920 | #if EV_MULTIPLICITY |
2628 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2921 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2647 | |
2940 | |
2648 | return ev_default_loop_ptr; |
2941 | return ev_default_loop_ptr; |
2649 | } |
2942 | } |
2650 | |
2943 | |
2651 | void |
2944 | void |
2652 | ev_loop_fork (EV_P) |
2945 | ev_loop_fork (EV_P) EV_THROW |
2653 | { |
2946 | { |
2654 | postfork = 1; /* must be in line with ev_default_fork */ |
2947 | postfork = 1; |
2655 | } |
2948 | } |
2656 | |
2949 | |
2657 | /*****************************************************************************/ |
2950 | /*****************************************************************************/ |
2658 | |
2951 | |
2659 | void |
2952 | void |
… | |
… | |
2661 | { |
2954 | { |
2662 | EV_CB_INVOKE ((W)w, revents); |
2955 | EV_CB_INVOKE ((W)w, revents); |
2663 | } |
2956 | } |
2664 | |
2957 | |
2665 | unsigned int |
2958 | unsigned int |
2666 | ev_pending_count (EV_P) |
2959 | ev_pending_count (EV_P) EV_THROW |
2667 | { |
2960 | { |
2668 | int pri; |
2961 | int pri; |
2669 | unsigned int count = 0; |
2962 | unsigned int count = 0; |
2670 | |
2963 | |
2671 | for (pri = NUMPRI; pri--; ) |
2964 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2675 | } |
2968 | } |
2676 | |
2969 | |
2677 | void noinline |
2970 | void noinline |
2678 | ev_invoke_pending (EV_P) |
2971 | ev_invoke_pending (EV_P) |
2679 | { |
2972 | { |
2680 | int pri; |
2973 | pendingpri = NUMPRI; |
2681 | |
2974 | |
2682 | for (pri = NUMPRI; pri--; ) |
2975 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2976 | { |
|
|
2977 | --pendingpri; |
|
|
2978 | |
2683 | while (pendingcnt [pri]) |
2979 | while (pendingcnt [pendingpri]) |
2684 | { |
2980 | { |
2685 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2981 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2686 | |
2982 | |
2687 | p->w->pending = 0; |
2983 | p->w->pending = 0; |
2688 | EV_CB_INVOKE (p->w, p->events); |
2984 | EV_CB_INVOKE (p->w, p->events); |
2689 | EV_FREQUENT_CHECK; |
2985 | EV_FREQUENT_CHECK; |
2690 | } |
2986 | } |
|
|
2987 | } |
2691 | } |
2988 | } |
2692 | |
2989 | |
2693 | #if EV_IDLE_ENABLE |
2990 | #if EV_IDLE_ENABLE |
2694 | /* make idle watchers pending. this handles the "call-idle */ |
2991 | /* make idle watchers pending. this handles the "call-idle */ |
2695 | /* only when higher priorities are idle" logic */ |
2992 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2785 | { |
3082 | { |
2786 | EV_FREQUENT_CHECK; |
3083 | EV_FREQUENT_CHECK; |
2787 | |
3084 | |
2788 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3085 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2789 | { |
3086 | { |
2790 | int feed_count = 0; |
|
|
2791 | |
|
|
2792 | do |
3087 | do |
2793 | { |
3088 | { |
2794 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3089 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2795 | |
3090 | |
2796 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3091 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2930 | |
3225 | |
2931 | mn_now = ev_rt_now; |
3226 | mn_now = ev_rt_now; |
2932 | } |
3227 | } |
2933 | } |
3228 | } |
2934 | |
3229 | |
2935 | void |
3230 | int |
2936 | ev_run (EV_P_ int flags) |
3231 | ev_run (EV_P_ int flags) |
2937 | { |
3232 | { |
2938 | #if EV_FEATURE_API |
3233 | #if EV_FEATURE_API |
2939 | ++loop_depth; |
3234 | ++loop_depth; |
2940 | #endif |
3235 | #endif |
… | |
… | |
3055 | backend_poll (EV_A_ waittime); |
3350 | backend_poll (EV_A_ waittime); |
3056 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3351 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3057 | |
3352 | |
3058 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3353 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3059 | |
3354 | |
|
|
3355 | ECB_MEMORY_FENCE_ACQUIRE; |
3060 | if (pipe_write_skipped) |
3356 | if (pipe_write_skipped) |
3061 | { |
3357 | { |
3062 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3358 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3063 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3359 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3064 | } |
3360 | } |
… | |
… | |
3097 | loop_done = EVBREAK_CANCEL; |
3393 | loop_done = EVBREAK_CANCEL; |
3098 | |
3394 | |
3099 | #if EV_FEATURE_API |
3395 | #if EV_FEATURE_API |
3100 | --loop_depth; |
3396 | --loop_depth; |
3101 | #endif |
3397 | #endif |
|
|
3398 | |
|
|
3399 | return activecnt; |
3102 | } |
3400 | } |
3103 | |
3401 | |
3104 | void |
3402 | void |
3105 | ev_break (EV_P_ int how) |
3403 | ev_break (EV_P_ int how) EV_THROW |
3106 | { |
3404 | { |
3107 | loop_done = how; |
3405 | loop_done = how; |
3108 | } |
3406 | } |
3109 | |
3407 | |
3110 | void |
3408 | void |
3111 | ev_ref (EV_P) |
3409 | ev_ref (EV_P) EV_THROW |
3112 | { |
3410 | { |
3113 | ++activecnt; |
3411 | ++activecnt; |
3114 | } |
3412 | } |
3115 | |
3413 | |
3116 | void |
3414 | void |
3117 | ev_unref (EV_P) |
3415 | ev_unref (EV_P) EV_THROW |
3118 | { |
3416 | { |
3119 | --activecnt; |
3417 | --activecnt; |
3120 | } |
3418 | } |
3121 | |
3419 | |
3122 | void |
3420 | void |
3123 | ev_now_update (EV_P) |
3421 | ev_now_update (EV_P) EV_THROW |
3124 | { |
3422 | { |
3125 | time_update (EV_A_ 1e100); |
3423 | time_update (EV_A_ 1e100); |
3126 | } |
3424 | } |
3127 | |
3425 | |
3128 | void |
3426 | void |
3129 | ev_suspend (EV_P) |
3427 | ev_suspend (EV_P) EV_THROW |
3130 | { |
3428 | { |
3131 | ev_now_update (EV_A); |
3429 | ev_now_update (EV_A); |
3132 | } |
3430 | } |
3133 | |
3431 | |
3134 | void |
3432 | void |
3135 | ev_resume (EV_P) |
3433 | ev_resume (EV_P) EV_THROW |
3136 | { |
3434 | { |
3137 | ev_tstamp mn_prev = mn_now; |
3435 | ev_tstamp mn_prev = mn_now; |
3138 | |
3436 | |
3139 | ev_now_update (EV_A); |
3437 | ev_now_update (EV_A); |
3140 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3438 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3179 | w->pending = 0; |
3477 | w->pending = 0; |
3180 | } |
3478 | } |
3181 | } |
3479 | } |
3182 | |
3480 | |
3183 | int |
3481 | int |
3184 | ev_clear_pending (EV_P_ void *w) |
3482 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3185 | { |
3483 | { |
3186 | W w_ = (W)w; |
3484 | W w_ = (W)w; |
3187 | int pending = w_->pending; |
3485 | int pending = w_->pending; |
3188 | |
3486 | |
3189 | if (expect_true (pending)) |
3487 | if (expect_true (pending)) |
… | |
… | |
3222 | } |
3520 | } |
3223 | |
3521 | |
3224 | /*****************************************************************************/ |
3522 | /*****************************************************************************/ |
3225 | |
3523 | |
3226 | void noinline |
3524 | void noinline |
3227 | ev_io_start (EV_P_ ev_io *w) |
3525 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3228 | { |
3526 | { |
3229 | int fd = w->fd; |
3527 | int fd = w->fd; |
3230 | |
3528 | |
3231 | if (expect_false (ev_is_active (w))) |
3529 | if (expect_false (ev_is_active (w))) |
3232 | return; |
3530 | return; |
… | |
… | |
3238 | |
3536 | |
3239 | ev_start (EV_A_ (W)w, 1); |
3537 | ev_start (EV_A_ (W)w, 1); |
3240 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3538 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3241 | wlist_add (&anfds[fd].head, (WL)w); |
3539 | wlist_add (&anfds[fd].head, (WL)w); |
3242 | |
3540 | |
|
|
3541 | /* common bug, apparently */ |
|
|
3542 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3543 | |
3243 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3544 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3244 | w->events &= ~EV__IOFDSET; |
3545 | w->events &= ~EV__IOFDSET; |
3245 | |
3546 | |
3246 | EV_FREQUENT_CHECK; |
3547 | EV_FREQUENT_CHECK; |
3247 | } |
3548 | } |
3248 | |
3549 | |
3249 | void noinline |
3550 | void noinline |
3250 | ev_io_stop (EV_P_ ev_io *w) |
3551 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3251 | { |
3552 | { |
3252 | clear_pending (EV_A_ (W)w); |
3553 | clear_pending (EV_A_ (W)w); |
3253 | if (expect_false (!ev_is_active (w))) |
3554 | if (expect_false (!ev_is_active (w))) |
3254 | return; |
3555 | return; |
3255 | |
3556 | |
… | |
… | |
3264 | |
3565 | |
3265 | EV_FREQUENT_CHECK; |
3566 | EV_FREQUENT_CHECK; |
3266 | } |
3567 | } |
3267 | |
3568 | |
3268 | void noinline |
3569 | void noinline |
3269 | ev_timer_start (EV_P_ ev_timer *w) |
3570 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3270 | { |
3571 | { |
3271 | if (expect_false (ev_is_active (w))) |
3572 | if (expect_false (ev_is_active (w))) |
3272 | return; |
3573 | return; |
3273 | |
3574 | |
3274 | ev_at (w) += mn_now; |
3575 | ev_at (w) += mn_now; |
… | |
… | |
3288 | |
3589 | |
3289 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3590 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3290 | } |
3591 | } |
3291 | |
3592 | |
3292 | void noinline |
3593 | void noinline |
3293 | ev_timer_stop (EV_P_ ev_timer *w) |
3594 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3294 | { |
3595 | { |
3295 | clear_pending (EV_A_ (W)w); |
3596 | clear_pending (EV_A_ (W)w); |
3296 | if (expect_false (!ev_is_active (w))) |
3597 | if (expect_false (!ev_is_active (w))) |
3297 | return; |
3598 | return; |
3298 | |
3599 | |
… | |
… | |
3318 | |
3619 | |
3319 | EV_FREQUENT_CHECK; |
3620 | EV_FREQUENT_CHECK; |
3320 | } |
3621 | } |
3321 | |
3622 | |
3322 | void noinline |
3623 | void noinline |
3323 | ev_timer_again (EV_P_ ev_timer *w) |
3624 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3324 | { |
3625 | { |
3325 | EV_FREQUENT_CHECK; |
3626 | EV_FREQUENT_CHECK; |
3326 | |
3627 | |
3327 | clear_pending (EV_A_ (W)w); |
3628 | clear_pending (EV_A_ (W)w); |
3328 | |
3629 | |
… | |
… | |
3345 | |
3646 | |
3346 | EV_FREQUENT_CHECK; |
3647 | EV_FREQUENT_CHECK; |
3347 | } |
3648 | } |
3348 | |
3649 | |
3349 | ev_tstamp |
3650 | ev_tstamp |
3350 | ev_timer_remaining (EV_P_ ev_timer *w) |
3651 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
3351 | { |
3652 | { |
3352 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3653 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3353 | } |
3654 | } |
3354 | |
3655 | |
3355 | #if EV_PERIODIC_ENABLE |
3656 | #if EV_PERIODIC_ENABLE |
3356 | void noinline |
3657 | void noinline |
3357 | ev_periodic_start (EV_P_ ev_periodic *w) |
3658 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3358 | { |
3659 | { |
3359 | if (expect_false (ev_is_active (w))) |
3660 | if (expect_false (ev_is_active (w))) |
3360 | return; |
3661 | return; |
3361 | |
3662 | |
3362 | if (w->reschedule_cb) |
3663 | if (w->reschedule_cb) |
… | |
… | |
3382 | |
3683 | |
3383 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3684 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3384 | } |
3685 | } |
3385 | |
3686 | |
3386 | void noinline |
3687 | void noinline |
3387 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3688 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3388 | { |
3689 | { |
3389 | clear_pending (EV_A_ (W)w); |
3690 | clear_pending (EV_A_ (W)w); |
3390 | if (expect_false (!ev_is_active (w))) |
3691 | if (expect_false (!ev_is_active (w))) |
3391 | return; |
3692 | return; |
3392 | |
3693 | |
… | |
… | |
3410 | |
3711 | |
3411 | EV_FREQUENT_CHECK; |
3712 | EV_FREQUENT_CHECK; |
3412 | } |
3713 | } |
3413 | |
3714 | |
3414 | void noinline |
3715 | void noinline |
3415 | ev_periodic_again (EV_P_ ev_periodic *w) |
3716 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3416 | { |
3717 | { |
3417 | /* TODO: use adjustheap and recalculation */ |
3718 | /* TODO: use adjustheap and recalculation */ |
3418 | ev_periodic_stop (EV_A_ w); |
3719 | ev_periodic_stop (EV_A_ w); |
3419 | ev_periodic_start (EV_A_ w); |
3720 | ev_periodic_start (EV_A_ w); |
3420 | } |
3721 | } |
… | |
… | |
3425 | #endif |
3726 | #endif |
3426 | |
3727 | |
3427 | #if EV_SIGNAL_ENABLE |
3728 | #if EV_SIGNAL_ENABLE |
3428 | |
3729 | |
3429 | void noinline |
3730 | void noinline |
3430 | ev_signal_start (EV_P_ ev_signal *w) |
3731 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3431 | { |
3732 | { |
3432 | if (expect_false (ev_is_active (w))) |
3733 | if (expect_false (ev_is_active (w))) |
3433 | return; |
3734 | return; |
3434 | |
3735 | |
3435 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3736 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3437 | #if EV_MULTIPLICITY |
3738 | #if EV_MULTIPLICITY |
3438 | assert (("libev: a signal must not be attached to two different loops", |
3739 | assert (("libev: a signal must not be attached to two different loops", |
3439 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3740 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3440 | |
3741 | |
3441 | signals [w->signum - 1].loop = EV_A; |
3742 | signals [w->signum - 1].loop = EV_A; |
|
|
3743 | ECB_MEMORY_FENCE_RELEASE; |
3442 | #endif |
3744 | #endif |
3443 | |
3745 | |
3444 | EV_FREQUENT_CHECK; |
3746 | EV_FREQUENT_CHECK; |
3445 | |
3747 | |
3446 | #if EV_USE_SIGNALFD |
3748 | #if EV_USE_SIGNALFD |
… | |
… | |
3506 | |
3808 | |
3507 | EV_FREQUENT_CHECK; |
3809 | EV_FREQUENT_CHECK; |
3508 | } |
3810 | } |
3509 | |
3811 | |
3510 | void noinline |
3812 | void noinline |
3511 | ev_signal_stop (EV_P_ ev_signal *w) |
3813 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3512 | { |
3814 | { |
3513 | clear_pending (EV_A_ (W)w); |
3815 | clear_pending (EV_A_ (W)w); |
3514 | if (expect_false (!ev_is_active (w))) |
3816 | if (expect_false (!ev_is_active (w))) |
3515 | return; |
3817 | return; |
3516 | |
3818 | |
… | |
… | |
3547 | #endif |
3849 | #endif |
3548 | |
3850 | |
3549 | #if EV_CHILD_ENABLE |
3851 | #if EV_CHILD_ENABLE |
3550 | |
3852 | |
3551 | void |
3853 | void |
3552 | ev_child_start (EV_P_ ev_child *w) |
3854 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
3553 | { |
3855 | { |
3554 | #if EV_MULTIPLICITY |
3856 | #if EV_MULTIPLICITY |
3555 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3857 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3556 | #endif |
3858 | #endif |
3557 | if (expect_false (ev_is_active (w))) |
3859 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3564 | |
3866 | |
3565 | EV_FREQUENT_CHECK; |
3867 | EV_FREQUENT_CHECK; |
3566 | } |
3868 | } |
3567 | |
3869 | |
3568 | void |
3870 | void |
3569 | ev_child_stop (EV_P_ ev_child *w) |
3871 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
3570 | { |
3872 | { |
3571 | clear_pending (EV_A_ (W)w); |
3873 | clear_pending (EV_A_ (W)w); |
3572 | if (expect_false (!ev_is_active (w))) |
3874 | if (expect_false (!ev_is_active (w))) |
3573 | return; |
3875 | return; |
3574 | |
3876 | |
… | |
… | |
3601 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3903 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3602 | |
3904 | |
3603 | static void noinline |
3905 | static void noinline |
3604 | infy_add (EV_P_ ev_stat *w) |
3906 | infy_add (EV_P_ ev_stat *w) |
3605 | { |
3907 | { |
3606 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
3908 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3909 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3910 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3911 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3607 | |
3912 | |
3608 | if (w->wd >= 0) |
3913 | if (w->wd >= 0) |
3609 | { |
3914 | { |
3610 | struct statfs sfs; |
3915 | struct statfs sfs; |
3611 | |
3916 | |
… | |
… | |
3615 | |
3920 | |
3616 | if (!fs_2625) |
3921 | if (!fs_2625) |
3617 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3922 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3618 | else if (!statfs (w->path, &sfs) |
3923 | else if (!statfs (w->path, &sfs) |
3619 | && (sfs.f_type == 0x1373 /* devfs */ |
3924 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3925 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3926 | || sfs.f_type == 0x4d44 /* msdos */ |
3620 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
3927 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3928 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3929 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3930 | || sfs.f_type == 0x5346544e /* ntfs */ |
3621 | || sfs.f_type == 0x3153464a /* jfs */ |
3931 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3932 | || sfs.f_type == 0x9123683e /* btrfs */ |
3622 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3933 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3623 | || sfs.f_type == 0x01021994 /* tempfs */ |
3934 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3624 | || sfs.f_type == 0x58465342 /* xfs */)) |
3935 | || sfs.f_type == 0x58465342 /* xfs */)) |
3625 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3936 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3626 | else |
3937 | else |
3627 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3938 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3628 | } |
3939 | } |
… | |
… | |
3826 | #else |
4137 | #else |
3827 | # define EV_LSTAT(p,b) lstat (p, b) |
4138 | # define EV_LSTAT(p,b) lstat (p, b) |
3828 | #endif |
4139 | #endif |
3829 | |
4140 | |
3830 | void |
4141 | void |
3831 | ev_stat_stat (EV_P_ ev_stat *w) |
4142 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3832 | { |
4143 | { |
3833 | if (lstat (w->path, &w->attr) < 0) |
4144 | if (lstat (w->path, &w->attr) < 0) |
3834 | w->attr.st_nlink = 0; |
4145 | w->attr.st_nlink = 0; |
3835 | else if (!w->attr.st_nlink) |
4146 | else if (!w->attr.st_nlink) |
3836 | w->attr.st_nlink = 1; |
4147 | w->attr.st_nlink = 1; |
… | |
… | |
3875 | ev_feed_event (EV_A_ w, EV_STAT); |
4186 | ev_feed_event (EV_A_ w, EV_STAT); |
3876 | } |
4187 | } |
3877 | } |
4188 | } |
3878 | |
4189 | |
3879 | void |
4190 | void |
3880 | ev_stat_start (EV_P_ ev_stat *w) |
4191 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3881 | { |
4192 | { |
3882 | if (expect_false (ev_is_active (w))) |
4193 | if (expect_false (ev_is_active (w))) |
3883 | return; |
4194 | return; |
3884 | |
4195 | |
3885 | ev_stat_stat (EV_A_ w); |
4196 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3906 | |
4217 | |
3907 | EV_FREQUENT_CHECK; |
4218 | EV_FREQUENT_CHECK; |
3908 | } |
4219 | } |
3909 | |
4220 | |
3910 | void |
4221 | void |
3911 | ev_stat_stop (EV_P_ ev_stat *w) |
4222 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3912 | { |
4223 | { |
3913 | clear_pending (EV_A_ (W)w); |
4224 | clear_pending (EV_A_ (W)w); |
3914 | if (expect_false (!ev_is_active (w))) |
4225 | if (expect_false (!ev_is_active (w))) |
3915 | return; |
4226 | return; |
3916 | |
4227 | |
… | |
… | |
3932 | } |
4243 | } |
3933 | #endif |
4244 | #endif |
3934 | |
4245 | |
3935 | #if EV_IDLE_ENABLE |
4246 | #if EV_IDLE_ENABLE |
3936 | void |
4247 | void |
3937 | ev_idle_start (EV_P_ ev_idle *w) |
4248 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3938 | { |
4249 | { |
3939 | if (expect_false (ev_is_active (w))) |
4250 | if (expect_false (ev_is_active (w))) |
3940 | return; |
4251 | return; |
3941 | |
4252 | |
3942 | pri_adjust (EV_A_ (W)w); |
4253 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3955 | |
4266 | |
3956 | EV_FREQUENT_CHECK; |
4267 | EV_FREQUENT_CHECK; |
3957 | } |
4268 | } |
3958 | |
4269 | |
3959 | void |
4270 | void |
3960 | ev_idle_stop (EV_P_ ev_idle *w) |
4271 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3961 | { |
4272 | { |
3962 | clear_pending (EV_A_ (W)w); |
4273 | clear_pending (EV_A_ (W)w); |
3963 | if (expect_false (!ev_is_active (w))) |
4274 | if (expect_false (!ev_is_active (w))) |
3964 | return; |
4275 | return; |
3965 | |
4276 | |
… | |
… | |
3979 | } |
4290 | } |
3980 | #endif |
4291 | #endif |
3981 | |
4292 | |
3982 | #if EV_PREPARE_ENABLE |
4293 | #if EV_PREPARE_ENABLE |
3983 | void |
4294 | void |
3984 | ev_prepare_start (EV_P_ ev_prepare *w) |
4295 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3985 | { |
4296 | { |
3986 | if (expect_false (ev_is_active (w))) |
4297 | if (expect_false (ev_is_active (w))) |
3987 | return; |
4298 | return; |
3988 | |
4299 | |
3989 | EV_FREQUENT_CHECK; |
4300 | EV_FREQUENT_CHECK; |
… | |
… | |
3994 | |
4305 | |
3995 | EV_FREQUENT_CHECK; |
4306 | EV_FREQUENT_CHECK; |
3996 | } |
4307 | } |
3997 | |
4308 | |
3998 | void |
4309 | void |
3999 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4310 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4000 | { |
4311 | { |
4001 | clear_pending (EV_A_ (W)w); |
4312 | clear_pending (EV_A_ (W)w); |
4002 | if (expect_false (!ev_is_active (w))) |
4313 | if (expect_false (!ev_is_active (w))) |
4003 | return; |
4314 | return; |
4004 | |
4315 | |
… | |
… | |
4017 | } |
4328 | } |
4018 | #endif |
4329 | #endif |
4019 | |
4330 | |
4020 | #if EV_CHECK_ENABLE |
4331 | #if EV_CHECK_ENABLE |
4021 | void |
4332 | void |
4022 | ev_check_start (EV_P_ ev_check *w) |
4333 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
4023 | { |
4334 | { |
4024 | if (expect_false (ev_is_active (w))) |
4335 | if (expect_false (ev_is_active (w))) |
4025 | return; |
4336 | return; |
4026 | |
4337 | |
4027 | EV_FREQUENT_CHECK; |
4338 | EV_FREQUENT_CHECK; |
… | |
… | |
4032 | |
4343 | |
4033 | EV_FREQUENT_CHECK; |
4344 | EV_FREQUENT_CHECK; |
4034 | } |
4345 | } |
4035 | |
4346 | |
4036 | void |
4347 | void |
4037 | ev_check_stop (EV_P_ ev_check *w) |
4348 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
4038 | { |
4349 | { |
4039 | clear_pending (EV_A_ (W)w); |
4350 | clear_pending (EV_A_ (W)w); |
4040 | if (expect_false (!ev_is_active (w))) |
4351 | if (expect_false (!ev_is_active (w))) |
4041 | return; |
4352 | return; |
4042 | |
4353 | |
… | |
… | |
4055 | } |
4366 | } |
4056 | #endif |
4367 | #endif |
4057 | |
4368 | |
4058 | #if EV_EMBED_ENABLE |
4369 | #if EV_EMBED_ENABLE |
4059 | void noinline |
4370 | void noinline |
4060 | ev_embed_sweep (EV_P_ ev_embed *w) |
4371 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4061 | { |
4372 | { |
4062 | ev_run (w->other, EVRUN_NOWAIT); |
4373 | ev_run (w->other, EVRUN_NOWAIT); |
4063 | } |
4374 | } |
4064 | |
4375 | |
4065 | static void |
4376 | static void |
… | |
… | |
4113 | ev_idle_stop (EV_A_ idle); |
4424 | ev_idle_stop (EV_A_ idle); |
4114 | } |
4425 | } |
4115 | #endif |
4426 | #endif |
4116 | |
4427 | |
4117 | void |
4428 | void |
4118 | ev_embed_start (EV_P_ ev_embed *w) |
4429 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4119 | { |
4430 | { |
4120 | if (expect_false (ev_is_active (w))) |
4431 | if (expect_false (ev_is_active (w))) |
4121 | return; |
4432 | return; |
4122 | |
4433 | |
4123 | { |
4434 | { |
… | |
… | |
4144 | |
4455 | |
4145 | EV_FREQUENT_CHECK; |
4456 | EV_FREQUENT_CHECK; |
4146 | } |
4457 | } |
4147 | |
4458 | |
4148 | void |
4459 | void |
4149 | ev_embed_stop (EV_P_ ev_embed *w) |
4460 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4150 | { |
4461 | { |
4151 | clear_pending (EV_A_ (W)w); |
4462 | clear_pending (EV_A_ (W)w); |
4152 | if (expect_false (!ev_is_active (w))) |
4463 | if (expect_false (!ev_is_active (w))) |
4153 | return; |
4464 | return; |
4154 | |
4465 | |
… | |
… | |
4164 | } |
4475 | } |
4165 | #endif |
4476 | #endif |
4166 | |
4477 | |
4167 | #if EV_FORK_ENABLE |
4478 | #if EV_FORK_ENABLE |
4168 | void |
4479 | void |
4169 | ev_fork_start (EV_P_ ev_fork *w) |
4480 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4170 | { |
4481 | { |
4171 | if (expect_false (ev_is_active (w))) |
4482 | if (expect_false (ev_is_active (w))) |
4172 | return; |
4483 | return; |
4173 | |
4484 | |
4174 | EV_FREQUENT_CHECK; |
4485 | EV_FREQUENT_CHECK; |
… | |
… | |
4179 | |
4490 | |
4180 | EV_FREQUENT_CHECK; |
4491 | EV_FREQUENT_CHECK; |
4181 | } |
4492 | } |
4182 | |
4493 | |
4183 | void |
4494 | void |
4184 | ev_fork_stop (EV_P_ ev_fork *w) |
4495 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4185 | { |
4496 | { |
4186 | clear_pending (EV_A_ (W)w); |
4497 | clear_pending (EV_A_ (W)w); |
4187 | if (expect_false (!ev_is_active (w))) |
4498 | if (expect_false (!ev_is_active (w))) |
4188 | return; |
4499 | return; |
4189 | |
4500 | |
… | |
… | |
4202 | } |
4513 | } |
4203 | #endif |
4514 | #endif |
4204 | |
4515 | |
4205 | #if EV_CLEANUP_ENABLE |
4516 | #if EV_CLEANUP_ENABLE |
4206 | void |
4517 | void |
4207 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4518 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4208 | { |
4519 | { |
4209 | if (expect_false (ev_is_active (w))) |
4520 | if (expect_false (ev_is_active (w))) |
4210 | return; |
4521 | return; |
4211 | |
4522 | |
4212 | EV_FREQUENT_CHECK; |
4523 | EV_FREQUENT_CHECK; |
… | |
… | |
4219 | ev_unref (EV_A); |
4530 | ev_unref (EV_A); |
4220 | EV_FREQUENT_CHECK; |
4531 | EV_FREQUENT_CHECK; |
4221 | } |
4532 | } |
4222 | |
4533 | |
4223 | void |
4534 | void |
4224 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4535 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4225 | { |
4536 | { |
4226 | clear_pending (EV_A_ (W)w); |
4537 | clear_pending (EV_A_ (W)w); |
4227 | if (expect_false (!ev_is_active (w))) |
4538 | if (expect_false (!ev_is_active (w))) |
4228 | return; |
4539 | return; |
4229 | |
4540 | |
… | |
… | |
4243 | } |
4554 | } |
4244 | #endif |
4555 | #endif |
4245 | |
4556 | |
4246 | #if EV_ASYNC_ENABLE |
4557 | #if EV_ASYNC_ENABLE |
4247 | void |
4558 | void |
4248 | ev_async_start (EV_P_ ev_async *w) |
4559 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4249 | { |
4560 | { |
4250 | if (expect_false (ev_is_active (w))) |
4561 | if (expect_false (ev_is_active (w))) |
4251 | return; |
4562 | return; |
4252 | |
4563 | |
4253 | w->sent = 0; |
4564 | w->sent = 0; |
… | |
… | |
4262 | |
4573 | |
4263 | EV_FREQUENT_CHECK; |
4574 | EV_FREQUENT_CHECK; |
4264 | } |
4575 | } |
4265 | |
4576 | |
4266 | void |
4577 | void |
4267 | ev_async_stop (EV_P_ ev_async *w) |
4578 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4268 | { |
4579 | { |
4269 | clear_pending (EV_A_ (W)w); |
4580 | clear_pending (EV_A_ (W)w); |
4270 | if (expect_false (!ev_is_active (w))) |
4581 | if (expect_false (!ev_is_active (w))) |
4271 | return; |
4582 | return; |
4272 | |
4583 | |
… | |
… | |
4283 | |
4594 | |
4284 | EV_FREQUENT_CHECK; |
4595 | EV_FREQUENT_CHECK; |
4285 | } |
4596 | } |
4286 | |
4597 | |
4287 | void |
4598 | void |
4288 | ev_async_send (EV_P_ ev_async *w) |
4599 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
4289 | { |
4600 | { |
4290 | w->sent = 1; |
4601 | w->sent = 1; |
4291 | evpipe_write (EV_A_ &async_pending); |
4602 | evpipe_write (EV_A_ &async_pending); |
4292 | } |
4603 | } |
4293 | #endif |
4604 | #endif |
… | |
… | |
4330 | |
4641 | |
4331 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4642 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4332 | } |
4643 | } |
4333 | |
4644 | |
4334 | void |
4645 | void |
4335 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4646 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
4336 | { |
4647 | { |
4337 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4648 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4338 | |
4649 | |
4339 | if (expect_false (!once)) |
4650 | if (expect_false (!once)) |
4340 | { |
4651 | { |
… | |
… | |
4362 | |
4673 | |
4363 | /*****************************************************************************/ |
4674 | /*****************************************************************************/ |
4364 | |
4675 | |
4365 | #if EV_WALK_ENABLE |
4676 | #if EV_WALK_ENABLE |
4366 | void ecb_cold |
4677 | void ecb_cold |
4367 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4678 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
4368 | { |
4679 | { |
4369 | int i, j; |
4680 | int i, j; |
4370 | ev_watcher_list *wl, *wn; |
4681 | ev_watcher_list *wl, *wn; |
4371 | |
4682 | |
4372 | if (types & (EV_IO | EV_EMBED)) |
4683 | if (types & (EV_IO | EV_EMBED)) |