… | |
… | |
183 | # include EV_H |
183 | # include EV_H |
184 | #else |
184 | #else |
185 | # include "ev.h" |
185 | # include "ev.h" |
186 | #endif |
186 | #endif |
187 | |
187 | |
188 | EV_CPP(extern "C" {) |
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189 | |
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190 | #ifndef _WIN32 |
188 | #ifndef _WIN32 |
191 | # include <sys/time.h> |
189 | # include <sys/time.h> |
192 | # include <sys/wait.h> |
190 | # include <sys/wait.h> |
193 | # include <unistd.h> |
191 | # include <unistd.h> |
194 | #else |
192 | #else |
… | |
… | |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
462 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
465 | |
463 | |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
464 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
465 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
468 | |
466 | |
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|
467 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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|
468 | /* ECB.H BEGIN */ |
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469 | /* |
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470 | * libecb - http://software.schmorp.de/pkg/libecb |
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471 | * |
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472 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
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473 | * Copyright (©) 2011 Emanuele Giaquinta |
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474 | * All rights reserved. |
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475 | * |
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476 | * Redistribution and use in source and binary forms, with or without modifica- |
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477 | * tion, are permitted provided that the following conditions are met: |
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478 | * |
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479 | * 1. Redistributions of source code must retain the above copyright notice, |
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480 | * this list of conditions and the following disclaimer. |
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481 | * |
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482 | * 2. Redistributions in binary form must reproduce the above copyright |
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483 | * notice, this list of conditions and the following disclaimer in the |
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484 | * documentation and/or other materials provided with the distribution. |
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485 | * |
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486 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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487 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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488 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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489 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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490 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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491 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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492 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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493 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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494 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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495 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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496 | */ |
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497 | |
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498 | #ifndef ECB_H |
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499 | #define ECB_H |
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500 | |
|
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501 | #ifdef _WIN32 |
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502 | typedef signed char int8_t; |
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503 | typedef unsigned char uint8_t; |
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504 | typedef signed short int16_t; |
|
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505 | typedef unsigned short uint16_t; |
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506 | typedef signed int int32_t; |
|
|
507 | typedef unsigned int uint32_t; |
469 | #if __GNUC__ >= 4 |
508 | #if __GNUC__ |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
509 | typedef signed long long int64_t; |
471 | # define noinline __attribute__ ((noinline)) |
510 | typedef unsigned long long uint64_t; |
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|
511 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
512 | typedef signed __int64 int64_t; |
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513 | typedef unsigned __int64 uint64_t; |
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|
514 | #endif |
472 | #else |
515 | #else |
473 | # define expect(expr,value) (expr) |
516 | #include <inttypes.h> |
474 | # define noinline |
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|
475 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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476 | # define inline |
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477 | # endif |
517 | #endif |
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518 | |
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519 | /* many compilers define _GNUC_ to some versions but then only implement |
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520 | * what their idiot authors think are the "more important" extensions, |
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521 | * causing enormous grief in return for some better fake benchmark numbers. |
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522 | * or so. |
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523 | * we try to detect these and simply assume they are not gcc - if they have |
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524 | * an issue with that they should have done it right in the first place. |
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525 | */ |
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526 | #ifndef ECB_GCC_VERSION |
|
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527 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
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528 | #define ECB_GCC_VERSION(major,minor) 0 |
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529 | #else |
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530 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
478 | #endif |
531 | #endif |
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532 | #endif |
479 | |
533 | |
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|
534 | /*****************************************************************************/ |
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535 | |
|
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536 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
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537 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
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538 | |
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539 | #if ECB_NO_THREADS || ECB_NO_SMP |
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540 | #define ECB_MEMORY_FENCE do { } while (0) |
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541 | #endif |
|
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542 | |
|
|
543 | #ifndef ECB_MEMORY_FENCE |
|
|
544 | #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
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545 | #if __i386 || __i386__ |
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546 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
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547 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
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548 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
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|
549 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
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551 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
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552 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
553 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
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|
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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|
555 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
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556 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
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|
557 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
558 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
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559 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
|
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560 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
561 | #elif __sparc || __sparc__ |
|
|
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
|
|
563 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
564 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
565 | #endif |
|
|
566 | #endif |
|
|
567 | #endif |
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|
568 | |
|
|
569 | #ifndef ECB_MEMORY_FENCE |
|
|
570 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) |
|
|
571 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
572 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
573 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
574 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
575 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
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576 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
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|
577 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
578 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
579 | #elif defined(_WIN32) |
|
|
580 | #include <WinNT.h> |
|
|
581 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
582 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
583 | #include <mbarrier.h> |
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|
584 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
585 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
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|
586 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
587 | #endif |
|
|
588 | #endif |
|
|
589 | |
|
|
590 | #ifndef ECB_MEMORY_FENCE |
|
|
591 | #if !ECB_AVOID_PTHREADS |
|
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592 | /* |
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593 | * if you get undefined symbol references to pthread_mutex_lock, |
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594 | * or failure to find pthread.h, then you should implement |
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595 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
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596 | * OR provide pthread.h and link against the posix thread library |
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597 | * of your system. |
|
|
598 | */ |
|
|
599 | #include <pthread.h> |
|
|
600 | #define ECB_NEEDS_PTHREADS 1 |
|
|
601 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
602 | |
|
|
603 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
604 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
605 | #endif |
|
|
606 | #endif |
|
|
607 | |
|
|
608 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
|
|
609 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
610 | #endif |
|
|
611 | |
|
|
612 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
|
|
613 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
614 | #endif |
|
|
615 | |
|
|
616 | /*****************************************************************************/ |
|
|
617 | |
|
|
618 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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|
619 | |
|
|
620 | #if __cplusplus |
|
|
621 | #define ecb_inline static inline |
|
|
622 | #elif ECB_GCC_VERSION(2,5) |
|
|
623 | #define ecb_inline static __inline__ |
|
|
624 | #elif ECB_C99 |
|
|
625 | #define ecb_inline static inline |
|
|
626 | #else |
|
|
627 | #define ecb_inline static |
|
|
628 | #endif |
|
|
629 | |
|
|
630 | #if ECB_GCC_VERSION(3,3) |
|
|
631 | #define ecb_restrict __restrict__ |
|
|
632 | #elif ECB_C99 |
|
|
633 | #define ecb_restrict restrict |
|
|
634 | #else |
|
|
635 | #define ecb_restrict |
|
|
636 | #endif |
|
|
637 | |
|
|
638 | typedef int ecb_bool; |
|
|
639 | |
|
|
640 | #define ECB_CONCAT_(a, b) a ## b |
|
|
641 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
642 | #define ECB_STRINGIFY_(a) # a |
|
|
643 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
644 | |
|
|
645 | #define ecb_function_ ecb_inline |
|
|
646 | |
|
|
647 | #if ECB_GCC_VERSION(3,1) |
|
|
648 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
649 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
650 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
651 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
652 | #else |
|
|
653 | #define ecb_attribute(attrlist) |
|
|
654 | #define ecb_is_constant(expr) 0 |
|
|
655 | #define ecb_expect(expr,value) (expr) |
|
|
656 | #define ecb_prefetch(addr,rw,locality) |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | /* no emulation for ecb_decltype */ |
|
|
660 | #if ECB_GCC_VERSION(4,5) |
|
|
661 | #define ecb_decltype(x) __decltype(x) |
|
|
662 | #elif ECB_GCC_VERSION(3,0) |
|
|
663 | #define ecb_decltype(x) __typeof(x) |
|
|
664 | #endif |
|
|
665 | |
|
|
666 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
667 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
668 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
669 | #define ecb_const ecb_attribute ((__const__)) |
|
|
670 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
671 | |
|
|
672 | #if ECB_GCC_VERSION(4,3) |
|
|
673 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
674 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
675 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
676 | #else |
|
|
677 | #define ecb_artificial |
|
|
678 | #define ecb_hot |
|
|
679 | #define ecb_cold |
|
|
680 | #endif |
|
|
681 | |
|
|
682 | /* put around conditional expressions if you are very sure that the */ |
|
|
683 | /* expression is mostly true or mostly false. note that these return */ |
|
|
684 | /* booleans, not the expression. */ |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
685 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
686 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
687 | /* for compatibility to the rest of the world */ |
|
|
688 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
689 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
690 | |
|
|
691 | /* count trailing zero bits and count # of one bits */ |
|
|
692 | #if ECB_GCC_VERSION(3,4) |
|
|
693 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
694 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
695 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
696 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
697 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
698 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
699 | /* no popcountll */ |
|
|
700 | #else |
|
|
701 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
702 | ecb_function_ int |
|
|
703 | ecb_ctz32 (uint32_t x) |
|
|
704 | { |
|
|
705 | int r = 0; |
|
|
706 | |
|
|
707 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
708 | |
|
|
709 | #if ECB_branchless_on_i386 |
|
|
710 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
711 | r += !!(x & 0xcccccccc) << 1; |
|
|
712 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
713 | r += !!(x & 0xff00ff00) << 3; |
|
|
714 | r += !!(x & 0xffff0000) << 4; |
|
|
715 | #else |
|
|
716 | if (x & 0xaaaaaaaa) r += 1; |
|
|
717 | if (x & 0xcccccccc) r += 2; |
|
|
718 | if (x & 0xf0f0f0f0) r += 4; |
|
|
719 | if (x & 0xff00ff00) r += 8; |
|
|
720 | if (x & 0xffff0000) r += 16; |
|
|
721 | #endif |
|
|
722 | |
|
|
723 | return r; |
|
|
724 | } |
|
|
725 | |
|
|
726 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
727 | ecb_function_ int |
|
|
728 | ecb_ctz64 (uint64_t x) |
|
|
729 | { |
|
|
730 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
731 | return ecb_ctz32 (x >> shift) + shift; |
|
|
732 | } |
|
|
733 | |
|
|
734 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
735 | ecb_function_ int |
|
|
736 | ecb_popcount32 (uint32_t x) |
|
|
737 | { |
|
|
738 | x -= (x >> 1) & 0x55555555; |
|
|
739 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
740 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
741 | x *= 0x01010101; |
|
|
742 | |
|
|
743 | return x >> 24; |
|
|
744 | } |
|
|
745 | |
|
|
746 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
747 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
748 | { |
|
|
749 | int r = 0; |
|
|
750 | |
|
|
751 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
752 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
753 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
754 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
755 | if (x >> 1) { r += 1; } |
|
|
756 | |
|
|
757 | return r; |
|
|
758 | } |
|
|
759 | |
|
|
760 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
761 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
762 | { |
|
|
763 | int r = 0; |
|
|
764 | |
|
|
765 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
766 | |
|
|
767 | return r + ecb_ld32 (x); |
|
|
768 | } |
|
|
769 | #endif |
|
|
770 | |
|
|
771 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
772 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
773 | { |
|
|
774 | return ( (x * 0x0802U & 0x22110U) |
|
|
775 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
776 | } |
|
|
777 | |
|
|
778 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
779 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
780 | { |
|
|
781 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
782 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
783 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
784 | x = ( x >> 8 ) | ( x << 8); |
|
|
785 | |
|
|
786 | return x; |
|
|
787 | } |
|
|
788 | |
|
|
789 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
790 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
791 | { |
|
|
792 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
793 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
794 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
795 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
796 | x = ( x >> 16 ) | ( x << 16); |
|
|
797 | |
|
|
798 | return x; |
|
|
799 | } |
|
|
800 | |
|
|
801 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
802 | /* so for this version we are lazy */ |
|
|
803 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
804 | ecb_function_ int |
|
|
805 | ecb_popcount64 (uint64_t x) |
|
|
806 | { |
|
|
807 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
808 | } |
|
|
809 | |
|
|
810 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
811 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
812 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
813 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
814 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
815 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
816 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
817 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
818 | |
|
|
819 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
820 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
821 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
822 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
823 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
824 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
825 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
826 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
827 | |
|
|
828 | #if ECB_GCC_VERSION(4,3) |
|
|
829 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
830 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
831 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
832 | #else |
|
|
833 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
834 | ecb_function_ uint16_t |
|
|
835 | ecb_bswap16 (uint16_t x) |
|
|
836 | { |
|
|
837 | return ecb_rotl16 (x, 8); |
|
|
838 | } |
|
|
839 | |
|
|
840 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
841 | ecb_function_ uint32_t |
|
|
842 | ecb_bswap32 (uint32_t x) |
|
|
843 | { |
|
|
844 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
845 | } |
|
|
846 | |
|
|
847 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
848 | ecb_function_ uint64_t |
|
|
849 | ecb_bswap64 (uint64_t x) |
|
|
850 | { |
|
|
851 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
852 | } |
|
|
853 | #endif |
|
|
854 | |
|
|
855 | #if ECB_GCC_VERSION(4,5) |
|
|
856 | #define ecb_unreachable() __builtin_unreachable () |
|
|
857 | #else |
|
|
858 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
859 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
|
|
860 | ecb_function_ void ecb_unreachable (void) { } |
|
|
861 | #endif |
|
|
862 | |
|
|
863 | /* try to tell the compiler that some condition is definitely true */ |
|
|
864 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
865 | |
|
|
866 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
867 | ecb_function_ unsigned char |
|
|
868 | ecb_byteorder_helper (void) |
|
|
869 | { |
|
|
870 | const uint32_t u = 0x11223344; |
|
|
871 | return *(unsigned char *)&u; |
|
|
872 | } |
|
|
873 | |
|
|
874 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
|
|
875 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
876 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
|
|
877 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
878 | |
|
|
879 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
880 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
881 | #else |
|
|
882 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
883 | #endif |
|
|
884 | |
|
|
885 | #if __cplusplus |
|
|
886 | template<typename T> |
|
|
887 | static inline T ecb_div_rd (T val, T div) |
|
|
888 | { |
|
|
889 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
890 | } |
|
|
891 | template<typename T> |
|
|
892 | static inline T ecb_div_ru (T val, T div) |
|
|
893 | { |
|
|
894 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
895 | } |
|
|
896 | #else |
|
|
897 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
898 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
899 | #endif |
|
|
900 | |
|
|
901 | #if ecb_cplusplus_does_not_suck |
|
|
902 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
903 | template<typename T, int N> |
|
|
904 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
905 | { |
|
|
906 | return N; |
|
|
907 | } |
|
|
908 | #else |
|
|
909 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
910 | #endif |
|
|
911 | |
|
|
912 | #endif |
|
|
913 | |
|
|
914 | /* ECB.H END */ |
|
|
915 | |
|
|
916 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
917 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
918 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
919 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
920 | * libev, in which cases the memory fences become nops. |
|
|
921 | * alternatively, you can remove this #error and link against libpthread, |
|
|
922 | * which will then provide the memory fences. |
|
|
923 | */ |
|
|
924 | # error "memory fences not defined for your architecture, please report" |
|
|
925 | #endif |
|
|
926 | |
|
|
927 | #ifndef ECB_MEMORY_FENCE |
|
|
928 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
929 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
930 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
931 | #endif |
|
|
932 | |
|
|
933 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
934 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
935 | #define noinline ecb_noinline |
|
|
936 | |
482 | #define inline_size static inline |
937 | #define inline_size ecb_inline |
483 | |
938 | |
484 | #if EV_FEATURE_CODE |
939 | #if EV_FEATURE_CODE |
485 | # define inline_speed static inline |
940 | # define inline_speed ecb_inline |
486 | #else |
941 | #else |
487 | # define inline_speed static noinline |
942 | # define inline_speed static noinline |
488 | #endif |
943 | #endif |
489 | |
944 | |
490 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
945 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
581 | |
1036 | |
582 | #ifdef __linux |
1037 | #ifdef __linux |
583 | # include <sys/utsname.h> |
1038 | # include <sys/utsname.h> |
584 | #endif |
1039 | #endif |
585 | |
1040 | |
586 | static unsigned int noinline |
1041 | static unsigned int noinline ecb_cold |
587 | ev_linux_version (void) |
1042 | ev_linux_version (void) |
588 | { |
1043 | { |
589 | #ifdef __linux |
1044 | #ifdef __linux |
590 | unsigned int v = 0; |
1045 | unsigned int v = 0; |
591 | struct utsname buf; |
1046 | struct utsname buf; |
… | |
… | |
620 | } |
1075 | } |
621 | |
1076 | |
622 | /*****************************************************************************/ |
1077 | /*****************************************************************************/ |
623 | |
1078 | |
624 | #if EV_AVOID_STDIO |
1079 | #if EV_AVOID_STDIO |
625 | static void noinline |
1080 | static void noinline ecb_cold |
626 | ev_printerr (const char *msg) |
1081 | ev_printerr (const char *msg) |
627 | { |
1082 | { |
628 | write (STDERR_FILENO, msg, strlen (msg)); |
1083 | write (STDERR_FILENO, msg, strlen (msg)); |
629 | } |
1084 | } |
630 | #endif |
1085 | #endif |
631 | |
1086 | |
632 | static void (*syserr_cb)(const char *msg); |
1087 | static void (*syserr_cb)(const char *msg); |
633 | |
1088 | |
634 | void |
1089 | void ecb_cold |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1090 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
636 | { |
1091 | { |
637 | syserr_cb = cb; |
1092 | syserr_cb = cb; |
638 | } |
1093 | } |
639 | |
1094 | |
640 | static void noinline |
1095 | static void noinline ecb_cold |
641 | ev_syserr (const char *msg) |
1096 | ev_syserr (const char *msg) |
642 | { |
1097 | { |
643 | if (!msg) |
1098 | if (!msg) |
644 | msg = "(libev) system error"; |
1099 | msg = "(libev) system error"; |
645 | |
1100 | |
… | |
… | |
678 | #endif |
1133 | #endif |
679 | } |
1134 | } |
680 | |
1135 | |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1136 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
682 | |
1137 | |
683 | void |
1138 | void ecb_cold |
684 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1139 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
685 | { |
1140 | { |
686 | alloc = cb; |
1141 | alloc = cb; |
687 | } |
1142 | } |
688 | |
1143 | |
… | |
… | |
777 | #undef VAR |
1232 | #undef VAR |
778 | }; |
1233 | }; |
779 | #include "ev_wrap.h" |
1234 | #include "ev_wrap.h" |
780 | |
1235 | |
781 | static struct ev_loop default_loop_struct; |
1236 | static struct ev_loop default_loop_struct; |
782 | struct ev_loop *ev_default_loop_ptr; |
1237 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
783 | |
1238 | |
784 | #else |
1239 | #else |
785 | |
1240 | |
786 | ev_tstamp ev_rt_now; |
1241 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
787 | #define VAR(name,decl) static decl; |
1242 | #define VAR(name,decl) static decl; |
788 | #include "ev_vars.h" |
1243 | #include "ev_vars.h" |
789 | #undef VAR |
1244 | #undef VAR |
790 | |
1245 | |
791 | static int ev_default_loop_ptr; |
1246 | static int ev_default_loop_ptr; |
… | |
… | |
885 | |
1340 | |
886 | do |
1341 | do |
887 | ncur <<= 1; |
1342 | ncur <<= 1; |
888 | while (cnt > ncur); |
1343 | while (cnt > ncur); |
889 | |
1344 | |
890 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1345 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
891 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1346 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
892 | { |
1347 | { |
893 | ncur *= elem; |
1348 | ncur *= elem; |
894 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1349 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
895 | ncur = ncur - sizeof (void *) * 4; |
1350 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
897 | } |
1352 | } |
898 | |
1353 | |
899 | return ncur; |
1354 | return ncur; |
900 | } |
1355 | } |
901 | |
1356 | |
902 | static noinline void * |
1357 | static void * noinline ecb_cold |
903 | array_realloc (int elem, void *base, int *cur, int cnt) |
1358 | array_realloc (int elem, void *base, int *cur, int cnt) |
904 | { |
1359 | { |
905 | *cur = array_nextsize (elem, *cur, cnt); |
1360 | *cur = array_nextsize (elem, *cur, cnt); |
906 | return ev_realloc (base, elem * *cur); |
1361 | return ev_realloc (base, elem * *cur); |
907 | } |
1362 | } |
… | |
… | |
910 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1365 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
911 | |
1366 | |
912 | #define array_needsize(type,base,cur,cnt,init) \ |
1367 | #define array_needsize(type,base,cur,cnt,init) \ |
913 | if (expect_false ((cnt) > (cur))) \ |
1368 | if (expect_false ((cnt) > (cur))) \ |
914 | { \ |
1369 | { \ |
915 | int ocur_ = (cur); \ |
1370 | int ecb_unused ocur_ = (cur); \ |
916 | (base) = (type *)array_realloc \ |
1371 | (base) = (type *)array_realloc \ |
917 | (sizeof (type), (base), &(cur), (cnt)); \ |
1372 | (sizeof (type), (base), &(cur), (cnt)); \ |
918 | init ((base) + (ocur_), (cur) - ocur_); \ |
1373 | init ((base) + (ocur_), (cur) - ocur_); \ |
919 | } |
1374 | } |
920 | |
1375 | |
… | |
… | |
1090 | fdchanges [fdchangecnt - 1] = fd; |
1545 | fdchanges [fdchangecnt - 1] = fd; |
1091 | } |
1546 | } |
1092 | } |
1547 | } |
1093 | |
1548 | |
1094 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1549 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1095 | inline_speed void |
1550 | inline_speed void ecb_cold |
1096 | fd_kill (EV_P_ int fd) |
1551 | fd_kill (EV_P_ int fd) |
1097 | { |
1552 | { |
1098 | ev_io *w; |
1553 | ev_io *w; |
1099 | |
1554 | |
1100 | while ((w = (ev_io *)anfds [fd].head)) |
1555 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1103 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1558 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1104 | } |
1559 | } |
1105 | } |
1560 | } |
1106 | |
1561 | |
1107 | /* check whether the given fd is actually valid, for error recovery */ |
1562 | /* check whether the given fd is actually valid, for error recovery */ |
1108 | inline_size int |
1563 | inline_size int ecb_cold |
1109 | fd_valid (int fd) |
1564 | fd_valid (int fd) |
1110 | { |
1565 | { |
1111 | #ifdef _WIN32 |
1566 | #ifdef _WIN32 |
1112 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1567 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1113 | #else |
1568 | #else |
1114 | return fcntl (fd, F_GETFD) != -1; |
1569 | return fcntl (fd, F_GETFD) != -1; |
1115 | #endif |
1570 | #endif |
1116 | } |
1571 | } |
1117 | |
1572 | |
1118 | /* called on EBADF to verify fds */ |
1573 | /* called on EBADF to verify fds */ |
1119 | static void noinline |
1574 | static void noinline ecb_cold |
1120 | fd_ebadf (EV_P) |
1575 | fd_ebadf (EV_P) |
1121 | { |
1576 | { |
1122 | int fd; |
1577 | int fd; |
1123 | |
1578 | |
1124 | for (fd = 0; fd < anfdmax; ++fd) |
1579 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1126 | if (!fd_valid (fd) && errno == EBADF) |
1581 | if (!fd_valid (fd) && errno == EBADF) |
1127 | fd_kill (EV_A_ fd); |
1582 | fd_kill (EV_A_ fd); |
1128 | } |
1583 | } |
1129 | |
1584 | |
1130 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1585 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1131 | static void noinline |
1586 | static void noinline ecb_cold |
1132 | fd_enomem (EV_P) |
1587 | fd_enomem (EV_P) |
1133 | { |
1588 | { |
1134 | int fd; |
1589 | int fd; |
1135 | |
1590 | |
1136 | for (fd = anfdmax; fd--; ) |
1591 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1331 | |
1786 | |
1332 | /*****************************************************************************/ |
1787 | /*****************************************************************************/ |
1333 | |
1788 | |
1334 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1789 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1335 | |
1790 | |
1336 | static void noinline |
1791 | static void noinline ecb_cold |
1337 | evpipe_init (EV_P) |
1792 | evpipe_init (EV_P) |
1338 | { |
1793 | { |
1339 | if (!ev_is_active (&pipe_w)) |
1794 | if (!ev_is_active (&pipe_w)) |
1340 | { |
1795 | { |
1341 | # if EV_USE_EVENTFD |
1796 | # if EV_USE_EVENTFD |
… | |
… | |
1363 | ev_io_start (EV_A_ &pipe_w); |
1818 | ev_io_start (EV_A_ &pipe_w); |
1364 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1819 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1365 | } |
1820 | } |
1366 | } |
1821 | } |
1367 | |
1822 | |
1368 | inline_size void |
1823 | inline_speed void |
1369 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1824 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1370 | { |
1825 | { |
1371 | if (!*flag) |
1826 | if (expect_true (*flag)) |
|
|
1827 | return; |
|
|
1828 | |
|
|
1829 | *flag = 1; |
|
|
1830 | |
|
|
1831 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1832 | |
|
|
1833 | pipe_write_skipped = 1; |
|
|
1834 | |
|
|
1835 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1836 | |
|
|
1837 | if (pipe_write_wanted) |
1372 | { |
1838 | { |
|
|
1839 | int old_errno; |
|
|
1840 | |
|
|
1841 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1842 | |
1373 | int old_errno = errno; /* save errno because write might clobber it */ |
1843 | old_errno = errno; /* save errno because write will clobber it */ |
1374 | char dummy; |
|
|
1375 | |
|
|
1376 | *flag = 1; |
|
|
1377 | |
1844 | |
1378 | #if EV_USE_EVENTFD |
1845 | #if EV_USE_EVENTFD |
1379 | if (evfd >= 0) |
1846 | if (evfd >= 0) |
1380 | { |
1847 | { |
1381 | uint64_t counter = 1; |
1848 | uint64_t counter = 1; |
1382 | write (evfd, &counter, sizeof (uint64_t)); |
1849 | write (evfd, &counter, sizeof (uint64_t)); |
1383 | } |
1850 | } |
1384 | else |
1851 | else |
1385 | #endif |
1852 | #endif |
|
|
1853 | { |
1386 | /* win32 people keep sending patches that change this write() to send() */ |
1854 | /* win32 people keep sending patches that change this write() to send() */ |
1387 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
1855 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
1388 | /* so when you think this write should be a send instead, please find out */ |
1856 | /* so when you think this write should be a send instead, please find out */ |
1389 | /* where your send() is from - it's definitely not the microsoft send, and */ |
1857 | /* where your send() is from - it's definitely not the microsoft send, and */ |
1390 | /* tell me. thank you. */ |
1858 | /* tell me. thank you. */ |
1391 | write (evpipe [1], &dummy, 1); |
1859 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1860 | } |
1392 | |
1861 | |
1393 | errno = old_errno; |
1862 | errno = old_errno; |
1394 | } |
1863 | } |
1395 | } |
1864 | } |
1396 | |
1865 | |
… | |
… | |
1399 | static void |
1868 | static void |
1400 | pipecb (EV_P_ ev_io *iow, int revents) |
1869 | pipecb (EV_P_ ev_io *iow, int revents) |
1401 | { |
1870 | { |
1402 | int i; |
1871 | int i; |
1403 | |
1872 | |
|
|
1873 | if (revents & EV_READ) |
|
|
1874 | { |
1404 | #if EV_USE_EVENTFD |
1875 | #if EV_USE_EVENTFD |
1405 | if (evfd >= 0) |
1876 | if (evfd >= 0) |
1406 | { |
1877 | { |
1407 | uint64_t counter; |
1878 | uint64_t counter; |
1408 | read (evfd, &counter, sizeof (uint64_t)); |
1879 | read (evfd, &counter, sizeof (uint64_t)); |
1409 | } |
1880 | } |
1410 | else |
1881 | else |
1411 | #endif |
1882 | #endif |
1412 | { |
1883 | { |
1413 | char dummy; |
1884 | char dummy; |
1414 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1885 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1415 | read (evpipe [0], &dummy, 1); |
1886 | read (evpipe [0], &dummy, 1); |
|
|
1887 | } |
1416 | } |
1888 | } |
|
|
1889 | |
|
|
1890 | pipe_write_skipped = 0; |
1417 | |
1891 | |
1418 | #if EV_SIGNAL_ENABLE |
1892 | #if EV_SIGNAL_ENABLE |
1419 | if (sig_pending) |
1893 | if (sig_pending) |
1420 | { |
1894 | { |
1421 | sig_pending = 0; |
1895 | sig_pending = 0; |
… | |
… | |
1450 | EV_P = signals [signum - 1].loop; |
1924 | EV_P = signals [signum - 1].loop; |
1451 | |
1925 | |
1452 | if (!EV_A) |
1926 | if (!EV_A) |
1453 | return; |
1927 | return; |
1454 | #endif |
1928 | #endif |
|
|
1929 | |
|
|
1930 | if (!ev_active (&pipe_w)) |
|
|
1931 | return; |
1455 | |
1932 | |
1456 | signals [signum - 1].pending = 1; |
1933 | signals [signum - 1].pending = 1; |
1457 | evpipe_write (EV_A_ &sig_pending); |
1934 | evpipe_write (EV_A_ &sig_pending); |
1458 | } |
1935 | } |
1459 | |
1936 | |
… | |
… | |
1591 | #endif |
2068 | #endif |
1592 | #if EV_USE_SELECT |
2069 | #if EV_USE_SELECT |
1593 | # include "ev_select.c" |
2070 | # include "ev_select.c" |
1594 | #endif |
2071 | #endif |
1595 | |
2072 | |
1596 | int |
2073 | int ecb_cold |
1597 | ev_version_major (void) |
2074 | ev_version_major (void) |
1598 | { |
2075 | { |
1599 | return EV_VERSION_MAJOR; |
2076 | return EV_VERSION_MAJOR; |
1600 | } |
2077 | } |
1601 | |
2078 | |
1602 | int |
2079 | int ecb_cold |
1603 | ev_version_minor (void) |
2080 | ev_version_minor (void) |
1604 | { |
2081 | { |
1605 | return EV_VERSION_MINOR; |
2082 | return EV_VERSION_MINOR; |
1606 | } |
2083 | } |
1607 | |
2084 | |
1608 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2085 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1609 | int inline_size |
2086 | int inline_size ecb_cold |
1610 | enable_secure (void) |
2087 | enable_secure (void) |
1611 | { |
2088 | { |
1612 | #ifdef _WIN32 |
2089 | #ifdef _WIN32 |
1613 | return 0; |
2090 | return 0; |
1614 | #else |
2091 | #else |
1615 | return getuid () != geteuid () |
2092 | return getuid () != geteuid () |
1616 | || getgid () != getegid (); |
2093 | || getgid () != getegid (); |
1617 | #endif |
2094 | #endif |
1618 | } |
2095 | } |
1619 | |
2096 | |
1620 | unsigned int |
2097 | unsigned int ecb_cold |
1621 | ev_supported_backends (void) |
2098 | ev_supported_backends (void) |
1622 | { |
2099 | { |
1623 | unsigned int flags = 0; |
2100 | unsigned int flags = 0; |
1624 | |
2101 | |
1625 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2102 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1629 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2106 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1630 | |
2107 | |
1631 | return flags; |
2108 | return flags; |
1632 | } |
2109 | } |
1633 | |
2110 | |
1634 | unsigned int |
2111 | unsigned int ecb_cold |
1635 | ev_recommended_backends (void) |
2112 | ev_recommended_backends (void) |
1636 | { |
2113 | { |
1637 | unsigned int flags = ev_supported_backends (); |
2114 | unsigned int flags = ev_supported_backends (); |
1638 | |
2115 | |
1639 | #ifndef __NetBSD__ |
2116 | #ifndef __NetBSD__ |
… | |
… | |
1651 | #endif |
2128 | #endif |
1652 | |
2129 | |
1653 | return flags; |
2130 | return flags; |
1654 | } |
2131 | } |
1655 | |
2132 | |
1656 | unsigned int |
2133 | unsigned int ecb_cold |
1657 | ev_embeddable_backends (void) |
2134 | ev_embeddable_backends (void) |
1658 | { |
2135 | { |
1659 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2136 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1660 | |
2137 | |
1661 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2138 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
… | |
… | |
1706 | ev_userdata (EV_P) |
2183 | ev_userdata (EV_P) |
1707 | { |
2184 | { |
1708 | return userdata; |
2185 | return userdata; |
1709 | } |
2186 | } |
1710 | |
2187 | |
|
|
2188 | void |
1711 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2189 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
1712 | { |
2190 | { |
1713 | invoke_cb = invoke_pending_cb; |
2191 | invoke_cb = invoke_pending_cb; |
1714 | } |
2192 | } |
1715 | |
2193 | |
|
|
2194 | void |
1716 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2195 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
1717 | { |
2196 | { |
1718 | release_cb = release; |
2197 | release_cb = release; |
1719 | acquire_cb = acquire; |
2198 | acquire_cb = acquire; |
1720 | } |
2199 | } |
1721 | #endif |
2200 | #endif |
1722 | |
2201 | |
1723 | /* initialise a loop structure, must be zero-initialised */ |
2202 | /* initialise a loop structure, must be zero-initialised */ |
1724 | static void noinline |
2203 | static void noinline ecb_cold |
1725 | loop_init (EV_P_ unsigned int flags) |
2204 | loop_init (EV_P_ unsigned int flags) |
1726 | { |
2205 | { |
1727 | if (!backend) |
2206 | if (!backend) |
1728 | { |
2207 | { |
1729 | origflags = flags; |
2208 | origflags = flags; |
… | |
… | |
1757 | if (!(flags & EVFLAG_NOENV) |
2236 | if (!(flags & EVFLAG_NOENV) |
1758 | && !enable_secure () |
2237 | && !enable_secure () |
1759 | && getenv ("LIBEV_FLAGS")) |
2238 | && getenv ("LIBEV_FLAGS")) |
1760 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2239 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1761 | |
2240 | |
1762 | ev_rt_now = ev_time (); |
2241 | ev_rt_now = ev_time (); |
1763 | mn_now = get_clock (); |
2242 | mn_now = get_clock (); |
1764 | now_floor = mn_now; |
2243 | now_floor = mn_now; |
1765 | rtmn_diff = ev_rt_now - mn_now; |
2244 | rtmn_diff = ev_rt_now - mn_now; |
1766 | #if EV_FEATURE_API |
2245 | #if EV_FEATURE_API |
1767 | invoke_cb = ev_invoke_pending; |
2246 | invoke_cb = ev_invoke_pending; |
1768 | #endif |
2247 | #endif |
1769 | |
2248 | |
1770 | io_blocktime = 0.; |
2249 | io_blocktime = 0.; |
1771 | timeout_blocktime = 0.; |
2250 | timeout_blocktime = 0.; |
1772 | backend = 0; |
2251 | backend = 0; |
1773 | backend_fd = -1; |
2252 | backend_fd = -1; |
1774 | sig_pending = 0; |
2253 | sig_pending = 0; |
1775 | #if EV_ASYNC_ENABLE |
2254 | #if EV_ASYNC_ENABLE |
1776 | async_pending = 0; |
2255 | async_pending = 0; |
1777 | #endif |
2256 | #endif |
|
|
2257 | pipe_write_skipped = 0; |
|
|
2258 | pipe_write_wanted = 0; |
1778 | #if EV_USE_INOTIFY |
2259 | #if EV_USE_INOTIFY |
1779 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2260 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1780 | #endif |
2261 | #endif |
1781 | #if EV_USE_SIGNALFD |
2262 | #if EV_USE_SIGNALFD |
1782 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2263 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1783 | #endif |
2264 | #endif |
1784 | |
2265 | |
1785 | if (!(flags & EVBACKEND_MASK)) |
2266 | if (!(flags & EVBACKEND_MASK)) |
1786 | flags |= ev_recommended_backends (); |
2267 | flags |= ev_recommended_backends (); |
1787 | |
2268 | |
… | |
… | |
1812 | #endif |
2293 | #endif |
1813 | } |
2294 | } |
1814 | } |
2295 | } |
1815 | |
2296 | |
1816 | /* free up a loop structure */ |
2297 | /* free up a loop structure */ |
1817 | void |
2298 | void ecb_cold |
1818 | ev_loop_destroy (EV_P) |
2299 | ev_loop_destroy (EV_P) |
1819 | { |
2300 | { |
1820 | int i; |
2301 | int i; |
1821 | |
2302 | |
1822 | #if EV_MULTIPLICITY |
2303 | #if EV_MULTIPLICITY |
… | |
… | |
1952 | infy_fork (EV_A); |
2433 | infy_fork (EV_A); |
1953 | #endif |
2434 | #endif |
1954 | |
2435 | |
1955 | if (ev_is_active (&pipe_w)) |
2436 | if (ev_is_active (&pipe_w)) |
1956 | { |
2437 | { |
1957 | /* this "locks" the handlers against writing to the pipe */ |
2438 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1958 | /* while we modify the fd vars */ |
|
|
1959 | sig_pending = 1; |
|
|
1960 | #if EV_ASYNC_ENABLE |
|
|
1961 | async_pending = 1; |
|
|
1962 | #endif |
|
|
1963 | |
2439 | |
1964 | ev_ref (EV_A); |
2440 | ev_ref (EV_A); |
1965 | ev_io_stop (EV_A_ &pipe_w); |
2441 | ev_io_stop (EV_A_ &pipe_w); |
1966 | |
2442 | |
1967 | #if EV_USE_EVENTFD |
2443 | #if EV_USE_EVENTFD |
… | |
… | |
1985 | postfork = 0; |
2461 | postfork = 0; |
1986 | } |
2462 | } |
1987 | |
2463 | |
1988 | #if EV_MULTIPLICITY |
2464 | #if EV_MULTIPLICITY |
1989 | |
2465 | |
1990 | struct ev_loop * |
2466 | struct ev_loop * ecb_cold |
1991 | ev_loop_new (unsigned int flags) |
2467 | ev_loop_new (unsigned int flags) |
1992 | { |
2468 | { |
1993 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2469 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1994 | |
2470 | |
1995 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2471 | memset (EV_A, 0, sizeof (struct ev_loop)); |
… | |
… | |
2003 | } |
2479 | } |
2004 | |
2480 | |
2005 | #endif /* multiplicity */ |
2481 | #endif /* multiplicity */ |
2006 | |
2482 | |
2007 | #if EV_VERIFY |
2483 | #if EV_VERIFY |
2008 | static void noinline |
2484 | static void noinline ecb_cold |
2009 | verify_watcher (EV_P_ W w) |
2485 | verify_watcher (EV_P_ W w) |
2010 | { |
2486 | { |
2011 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2487 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2012 | |
2488 | |
2013 | if (w->pending) |
2489 | if (w->pending) |
2014 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2490 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2015 | } |
2491 | } |
2016 | |
2492 | |
2017 | static void noinline |
2493 | static void noinline ecb_cold |
2018 | verify_heap (EV_P_ ANHE *heap, int N) |
2494 | verify_heap (EV_P_ ANHE *heap, int N) |
2019 | { |
2495 | { |
2020 | int i; |
2496 | int i; |
2021 | |
2497 | |
2022 | for (i = HEAP0; i < N + HEAP0; ++i) |
2498 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2027 | |
2503 | |
2028 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2504 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2029 | } |
2505 | } |
2030 | } |
2506 | } |
2031 | |
2507 | |
2032 | static void noinline |
2508 | static void noinline ecb_cold |
2033 | array_verify (EV_P_ W *ws, int cnt) |
2509 | array_verify (EV_P_ W *ws, int cnt) |
2034 | { |
2510 | { |
2035 | while (cnt--) |
2511 | while (cnt--) |
2036 | { |
2512 | { |
2037 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2513 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2039 | } |
2515 | } |
2040 | } |
2516 | } |
2041 | #endif |
2517 | #endif |
2042 | |
2518 | |
2043 | #if EV_FEATURE_API |
2519 | #if EV_FEATURE_API |
2044 | void |
2520 | void ecb_cold |
2045 | ev_verify (EV_P) |
2521 | ev_verify (EV_P) |
2046 | { |
2522 | { |
2047 | #if EV_VERIFY |
2523 | #if EV_VERIFY |
2048 | int i; |
2524 | int i; |
2049 | WL w; |
2525 | WL w; |
… | |
… | |
2115 | #endif |
2591 | #endif |
2116 | } |
2592 | } |
2117 | #endif |
2593 | #endif |
2118 | |
2594 | |
2119 | #if EV_MULTIPLICITY |
2595 | #if EV_MULTIPLICITY |
2120 | struct ev_loop * |
2596 | struct ev_loop * ecb_cold |
2121 | #else |
2597 | #else |
2122 | int |
2598 | int |
2123 | #endif |
2599 | #endif |
2124 | ev_default_loop (unsigned int flags) |
2600 | ev_default_loop (unsigned int flags) |
2125 | { |
2601 | { |
… | |
… | |
2324 | } |
2800 | } |
2325 | } |
2801 | } |
2326 | |
2802 | |
2327 | /* simply recalculate all periodics */ |
2803 | /* simply recalculate all periodics */ |
2328 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2804 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2329 | static void noinline |
2805 | static void noinline ecb_cold |
2330 | periodics_reschedule (EV_P) |
2806 | periodics_reschedule (EV_P) |
2331 | { |
2807 | { |
2332 | int i; |
2808 | int i; |
2333 | |
2809 | |
2334 | /* adjust periodics after time jump */ |
2810 | /* adjust periodics after time jump */ |
… | |
… | |
2347 | reheap (periodics, periodiccnt); |
2823 | reheap (periodics, periodiccnt); |
2348 | } |
2824 | } |
2349 | #endif |
2825 | #endif |
2350 | |
2826 | |
2351 | /* adjust all timers by a given offset */ |
2827 | /* adjust all timers by a given offset */ |
2352 | static void noinline |
2828 | static void noinline ecb_cold |
2353 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2829 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2354 | { |
2830 | { |
2355 | int i; |
2831 | int i; |
2356 | |
2832 | |
2357 | for (i = 0; i < timercnt; ++i) |
2833 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2499 | ev_tstamp prev_mn_now = mn_now; |
2975 | ev_tstamp prev_mn_now = mn_now; |
2500 | |
2976 | |
2501 | /* update time to cancel out callback processing overhead */ |
2977 | /* update time to cancel out callback processing overhead */ |
2502 | time_update (EV_A_ 1e100); |
2978 | time_update (EV_A_ 1e100); |
2503 | |
2979 | |
|
|
2980 | /* from now on, we want a pipe-wake-up */ |
|
|
2981 | pipe_write_wanted = 1; |
|
|
2982 | |
|
|
2983 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2984 | |
2504 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2985 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2505 | { |
2986 | { |
2506 | waittime = MAX_BLOCKTIME; |
2987 | waittime = MAX_BLOCKTIME; |
2507 | |
2988 | |
2508 | if (timercnt) |
2989 | if (timercnt) |
2509 | { |
2990 | { |
… | |
… | |
2549 | #endif |
3030 | #endif |
2550 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3031 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2551 | backend_poll (EV_A_ waittime); |
3032 | backend_poll (EV_A_ waittime); |
2552 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3033 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2553 | |
3034 | |
|
|
3035 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3036 | |
|
|
3037 | if (pipe_write_skipped) |
|
|
3038 | { |
|
|
3039 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3040 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3041 | } |
|
|
3042 | |
|
|
3043 | |
2554 | /* update ev_rt_now, do magic */ |
3044 | /* update ev_rt_now, do magic */ |
2555 | time_update (EV_A_ waittime + sleeptime); |
3045 | time_update (EV_A_ waittime + sleeptime); |
2556 | } |
3046 | } |
2557 | |
3047 | |
2558 | /* queue pending timers and reschedule them */ |
3048 | /* queue pending timers and reschedule them */ |
… | |
… | |
2808 | |
3298 | |
2809 | void noinline |
3299 | void noinline |
2810 | ev_timer_again (EV_P_ ev_timer *w) |
3300 | ev_timer_again (EV_P_ ev_timer *w) |
2811 | { |
3301 | { |
2812 | EV_FREQUENT_CHECK; |
3302 | EV_FREQUENT_CHECK; |
|
|
3303 | |
|
|
3304 | clear_pending (EV_A_ w); |
2813 | |
3305 | |
2814 | if (ev_is_active (w)) |
3306 | if (ev_is_active (w)) |
2815 | { |
3307 | { |
2816 | if (w->repeat) |
3308 | if (w->repeat) |
2817 | { |
3309 | { |
… | |
… | |
3211 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3703 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3212 | ofs += sizeof (struct inotify_event) + ev->len; |
3704 | ofs += sizeof (struct inotify_event) + ev->len; |
3213 | } |
3705 | } |
3214 | } |
3706 | } |
3215 | |
3707 | |
3216 | inline_size void |
3708 | inline_size void ecb_cold |
3217 | ev_check_2625 (EV_P) |
3709 | ev_check_2625 (EV_P) |
3218 | { |
3710 | { |
3219 | /* kernels < 2.6.25 are borked |
3711 | /* kernels < 2.6.25 are borked |
3220 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3712 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3221 | */ |
3713 | */ |
… | |
… | |
3846 | } |
4338 | } |
3847 | |
4339 | |
3848 | /*****************************************************************************/ |
4340 | /*****************************************************************************/ |
3849 | |
4341 | |
3850 | #if EV_WALK_ENABLE |
4342 | #if EV_WALK_ENABLE |
3851 | void |
4343 | void ecb_cold |
3852 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4344 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3853 | { |
4345 | { |
3854 | int i, j; |
4346 | int i, j; |
3855 | ev_watcher_list *wl, *wn; |
4347 | ev_watcher_list *wl, *wn; |
3856 | |
4348 | |
… | |
… | |
3900 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4392 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3901 | #endif |
4393 | #endif |
3902 | |
4394 | |
3903 | #if EV_IDLE_ENABLE |
4395 | #if EV_IDLE_ENABLE |
3904 | if (types & EV_IDLE) |
4396 | if (types & EV_IDLE) |
3905 | for (j = NUMPRI; i--; ) |
4397 | for (j = NUMPRI; j--; ) |
3906 | for (i = idlecnt [j]; i--; ) |
4398 | for (i = idlecnt [j]; i--; ) |
3907 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4399 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3908 | #endif |
4400 | #endif |
3909 | |
4401 | |
3910 | #if EV_FORK_ENABLE |
4402 | #if EV_FORK_ENABLE |
… | |
… | |
3963 | |
4455 | |
3964 | #if EV_MULTIPLICITY |
4456 | #if EV_MULTIPLICITY |
3965 | #include "ev_wrap.h" |
4457 | #include "ev_wrap.h" |
3966 | #endif |
4458 | #endif |
3967 | |
4459 | |
3968 | EV_CPP(}) |
|
|
3969 | |
|
|