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Comparing libev/ev.c (file contents):
Revision 1.419 by root, Thu Apr 12 04:10:15 2012 UTC vs.
Revision 1.451 by root, Tue Jan 22 05:18:28 2013 UTC

…		…
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
		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
…		…
359	#endif	360	#endif
360		361
361	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	362	/* 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. */	363	/* which makes programs even slower. might work on other unices, too. */
363	#if EV_USE_CLOCK_SYSCALL	364	#if EV_USE_CLOCK_SYSCALL
364	# include <syscall.h>	365	# include <sys/syscall.h>
365	# ifdef SYS_clock_gettime	366	# ifdef SYS_clock_gettime
366	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	367	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367	# undef EV_USE_MONOTONIC	368	# undef EV_USE_MONOTONIC
368	# define EV_USE_MONOTONIC 1	369	# define EV_USE_MONOTONIC 1
369	# else	370	# else
…		…
408	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	409	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409	# ifndef IN_DONT_FOLLOW	410	# ifndef IN_DONT_FOLLOW
410	# undef EV_USE_INOTIFY	411	# undef EV_USE_INOTIFY
411	# define EV_USE_INOTIFY 0	412	# define EV_USE_INOTIFY 0
412	# endif	413	# endif
413	#endif
414
415	#if EV_SELECT_IS_WINSOCKET
416	# include <winsock.h>
417	#endif	414	#endif
418		415
419	#if EV_USE_EVENTFD	416	#if EV_USE_EVENTFD
420	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	417	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421	# include <stdint.h>	418	# include <stdint.h>
…		…
507	*/	504	*/
508		505
509	#ifndef ECB_H	506	#ifndef ECB_H
510	#define ECB_H	507	#define ECB_H
511		508
		509	/* 16 bits major, 16 bits minor */
		510	#define ECB_VERSION 0x00010002
		511
512	#ifdef _WIN32	512	#ifdef _WIN32
513	typedef signed char int8_t;	513	typedef signed char int8_t;
514	typedef unsigned char uint8_t;	514	typedef unsigned char uint8_t;
515	typedef signed short int16_t;	515	typedef signed short int16_t;
516	typedef unsigned short uint16_t;	516	typedef unsigned short uint16_t;
…		…
521	typedef unsigned long long uint64_t;	521	typedef unsigned long long uint64_t;
522	#else /* _MSC_VER || __BORLANDC__ */	522	#else /* _MSC_VER || __BORLANDC__ */
523	typedef signed __int64 int64_t;	523	typedef signed __int64 int64_t;
524	typedef unsigned __int64 uint64_t;	524	typedef unsigned __int64 uint64_t;
525	#endif	525	#endif
		526	#ifdef _WIN64
		527	#define ECB_PTRSIZE 8
		528	typedef uint64_t uintptr_t;
		529	typedef int64_t intptr_t;
		530	#else
		531	#define ECB_PTRSIZE 4
		532	typedef uint32_t uintptr_t;
		533	typedef int32_t intptr_t;
		534	#endif
526	#else	535	#else
527	#include <inttypes.h>	536	#include <inttypes.h>
		537	#if UINTMAX_MAX > 0xffffffffU
		538	#define ECB_PTRSIZE 8
		539	#else
		540	#define ECB_PTRSIZE 4
		541	#endif
528	#endif	542	#endif
529		543
530	/* many compilers define _GNUC_ to some versions but then only implement	544	/* many compilers define _GNUC_ to some versions but then only implement
531	* what their idiot authors think are the "more important" extensions,	545	* what their idiot authors think are the "more important" extensions,
532	* causing enormous grief in return for some better fake benchmark numbers.	546	* causing enormous grief in return for some better fake benchmark numbers.
…		…
540	#else	554	#else
541	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	555	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542	#endif	556	#endif
543	#endif	557	#endif
544		558
		559	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		560	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		561	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		562	#define ECB_CPP (__cplusplus+0)
		563	#define ECB_CPP11 (__cplusplus >= 201103L)
		564
		565	#if ECB_CPP
		566	#define ECB_EXTERN_C extern "C"
		567	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		568	#define ECB_EXTERN_C_END }
		569	#else
		570	#define ECB_EXTERN_C extern
		571	#define ECB_EXTERN_C_BEG
		572	#define ECB_EXTERN_C_END
		573	#endif
		574
545	/*****************************************************************************/	575	/*****************************************************************************/
546		576
547	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	577	/* 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 */	578	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549		579
550	#if ECB_NO_THREADS	580	#if ECB_NO_THREADS
551	# define ECB_NO_SMP 1	581	#define ECB_NO_SMP 1
552	#endif	582	#endif
553		583
554	#if ECB_NO_THREADS || ECB_NO_SMP	584	#if ECB_NO_SMP
555	#define ECB_MEMORY_FENCE do { } while (0)	585	#define ECB_MEMORY_FENCE do { } while (0)
556	#endif	586	#endif
557		587
558	#ifndef ECB_MEMORY_FENCE	588	#ifndef ECB_MEMORY_FENCE
559	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	589	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560	#if __i386 || __i386__	590	#if __i386 || __i386__
561	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	591	#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 */	592	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */	593	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	594	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	595	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")	596	#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 */	597	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	598	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	599	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \	600	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__	601	|| 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")	602	#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__ \	603	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__	604	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	605	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576	#elif __sparc || __sparc__	606	#elif __sparc || __sparc__
577	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")	607	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	608	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580	#elif defined __s390__ || defined __s390x__	610	#elif defined __s390__ || defined __s390x__
581	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582	#elif defined __mips__	612	#elif defined __mips__
583	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	613	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
584	#elif defined __alpha__	614	#elif defined __alpha__
585	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")	615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		616	#elif defined __hppa__
		617	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		618	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		619	#elif defined __ia64__
		620	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
586	#endif	621	#endif
587	#endif	622	#endif
588	#endif	623	#endif
589		624
590	#ifndef ECB_MEMORY_FENCE	625	#ifndef ECB_MEMORY_FENCE
		626	#if ECB_GCC_VERSION(4,7)
		627	/* see comment below (stdatomic.h) about the C11 memory model. */
		628	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		629
		630	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		631	* without risking compile time errors with other compilers. We *could*
		632	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		633	* around this shit time and again.
		634	* #elif defined __clang && __has_feature (cxx_atomic)
		635	* // see comment below (stdatomic.h) about the C11 memory model.
		636	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		637	*/
		638
591	#if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	639	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592	#define ECB_MEMORY_FENCE __sync_synchronize ()	640	#define ECB_MEMORY_FENCE __sync_synchronize ()
593	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
594	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
595	#elif _MSC_VER >= 1400 /* VC++ 2005 */	641	#elif _MSC_VER >= 1400 /* VC++ 2005 */
596	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	642	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	643	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	644	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	645	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
…		…
609	#define ECB_MEMORY_FENCE __sync ()	655	#define ECB_MEMORY_FENCE __sync ()
610	#endif	656	#endif
611	#endif	657	#endif
612		658
613	#ifndef ECB_MEMORY_FENCE	659	#ifndef ECB_MEMORY_FENCE
		660	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		661	/* we assume that these memory fences work on all variables/all memory accesses, */
		662	/* not just C11 atomics and atomic accesses */
		663	#include <stdatomic.h>
		664	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		665	/* any fence other than seq_cst, which isn't very efficient for us. */
		666	/* Why that is, we don't know - either the C11 memory model is quite useless */
		667	/* for most usages, or gcc and clang have a bug */
		668	/* I *currently* lean towards the latter, and inefficiently implement */
		669	/* all three of ecb's fences as a seq_cst fence */
		670	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
		671	#endif
		672	#endif
		673
		674	#ifndef ECB_MEMORY_FENCE
614	#if !ECB_AVOID_PTHREADS	675	#if !ECB_AVOID_PTHREADS
615	/*	676	/*
616	* if you get undefined symbol references to pthread_mutex_lock,	677	* if you get undefined symbol references to pthread_mutex_lock,
617	* or failure to find pthread.h, then you should implement	678	* or failure to find pthread.h, then you should implement
618	* the ECB_MEMORY_FENCE operations for your cpu/compiler	679	* the ECB_MEMORY_FENCE operations for your cpu/compiler
…		…
636	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	697	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637	#endif	698	#endif
638		699
639	/*****************************************************************************/	700	/*****************************************************************************/
640		701
641	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643	#if __cplusplus	702	#if __cplusplus
644	#define ecb_inline static inline	703	#define ecb_inline static inline
645	#elif ECB_GCC_VERSION(2,5)	704	#elif ECB_GCC_VERSION(2,5)
646	#define ecb_inline static __inline__	705	#define ecb_inline static __inline__
647	#elif ECB_C99	706	#elif ECB_C99
…		…
685	#elif ECB_GCC_VERSION(3,0)	744	#elif ECB_GCC_VERSION(3,0)
686	#define ecb_decltype(x) __typeof(x)	745	#define ecb_decltype(x) __typeof(x)
687	#endif	746	#endif
688		747
689	#define ecb_noinline ecb_attribute ((__noinline__))	748	#define ecb_noinline ecb_attribute ((__noinline__))
690	#define ecb_noreturn ecb_attribute ((__noreturn__))
691	#define ecb_unused ecb_attribute ((__unused__))	749	#define ecb_unused ecb_attribute ((__unused__))
692	#define ecb_const ecb_attribute ((__const__))	750	#define ecb_const ecb_attribute ((__const__))
693	#define ecb_pure ecb_attribute ((__pure__))	751	#define ecb_pure ecb_attribute ((__pure__))
		752
		753	#if ECB_C11
		754	#define ecb_noreturn _Noreturn
		755	#else
		756	#define ecb_noreturn ecb_attribute ((__noreturn__))
		757	#endif
694		758
695	#if ECB_GCC_VERSION(4,3)	759	#if ECB_GCC_VERSION(4,3)
696	#define ecb_artificial ecb_attribute ((__artificial__))	760	#define ecb_artificial ecb_attribute ((__artificial__))
697	#define ecb_hot ecb_attribute ((__hot__))	761	#define ecb_hot ecb_attribute ((__hot__))
698	#define ecb_cold ecb_attribute ((__cold__))	762	#define ecb_cold ecb_attribute ((__cold__))
…		…
789		853
790	return r + ecb_ld32 (x);	854	return r + ecb_ld32 (x);
791	}	855	}
792	#endif	856	#endif
793		857
		858	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		859	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		860	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		861	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		862
794	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	863	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	864	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796	{	865	{
797	return ( (x * 0x0802U & 0x22110U)	866	return ( (x * 0x0802U & 0x22110U)
798	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	867	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
…		…
882	ecb_inline void ecb_unreachable (void) ecb_noreturn;	951	ecb_inline void ecb_unreachable (void) ecb_noreturn;
883	ecb_inline void ecb_unreachable (void) { }	952	ecb_inline void ecb_unreachable (void) { }
884	#endif	953	#endif
885		954
886	/* try to tell the compiler that some condition is definitely true */	955	/* try to tell the compiler that some condition is definitely true */
887	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	956	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
888		957
889	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	958	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
890	ecb_inline unsigned char	959	ecb_inline unsigned char
891	ecb_byteorder_helper (void)	960	ecb_byteorder_helper (void)
892	{	961	{
893	const uint32_t u = 0x11223344;	962	/* the union code still generates code under pressure in gcc, */
894	return *(unsigned char *)&u;	963	/* but less than using pointers, and always seems to */
		964	/* successfully return a constant. */
		965	/* the reason why we have this horrible preprocessor mess */
		966	/* is to avoid it in all cases, at least on common architectures */
		967	/* or when using a recent enough gcc version (>= 4.6) */
		968	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		969	return 0x44;
		970	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		971	return 0x44;
		972	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		973	return 0x11;
		974	#else
		975	union
		976	{
		977	uint32_t i;
		978	uint8_t c;
		979	} u = { 0x11223344 };
		980	return u.c;
		981	#endif
895	}	982	}
896		983
897	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	984	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
898	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	985	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
899	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	986	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
…		…
930	}	1017	}
931	#else	1018	#else
932	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1019	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
933	#endif	1020	#endif
934		1021
		1022	/*******************************************************************************/
		1023	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1024
		1025	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1026	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1027	#if 0 \
		1028	|| __i386 || __i386__ \
		1029	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1030	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1031	|| defined __arm__ && defined __ARM_EABI__ \
		1032	|| defined __s390__ || defined __s390x__ \
		1033	|| defined __mips__ \
		1034	|| defined __alpha__ \
		1035	|| defined __hppa__ \
		1036	|| defined __ia64__ \
		1037	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
		1038	#define ECB_STDFP 1
		1039	#include <string.h> /* for memcpy */
		1040	#else
		1041	#define ECB_STDFP 0
		1042	#include <math.h> /* for frexp*, ldexp* */
		1043	#endif
		1044
		1045	#ifndef ECB_NO_LIBM
		1046
		1047	/* convert a float to ieee single/binary32 */
		1048	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1049	ecb_function_ uint32_t
		1050	ecb_float_to_binary32 (float x)
		1051	{
		1052	uint32_t r;
		1053
		1054	#if ECB_STDFP
		1055	memcpy (&r, &x, 4);
		1056	#else
		1057	/* slow emulation, works for anything but -0 */
		1058	uint32_t m;
		1059	int e;
		1060
		1061	if (x == 0e0f ) return 0x00000000U;
		1062	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1063	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1064	if (x != x ) return 0x7fbfffffU;
		1065
		1066	m = frexpf (x, &e) * 0x1000000U;
		1067
		1068	r = m & 0x80000000U;
		1069
		1070	if (r)
		1071	m = -m;
		1072
		1073	if (e <= -126)
		1074	{
		1075	m &= 0xffffffU;
		1076	m >>= (-125 - e);
		1077	e = -126;
		1078	}
		1079
		1080	r |= (e + 126) << 23;
		1081	r |= m & 0x7fffffU;
		1082	#endif
		1083
		1084	return r;
		1085	}
		1086
		1087	/* converts an ieee single/binary32 to a float */
		1088	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1089	ecb_function_ float
		1090	ecb_binary32_to_float (uint32_t x)
		1091	{
		1092	float r;
		1093
		1094	#if ECB_STDFP
		1095	memcpy (&r, &x, 4);
		1096	#else
		1097	/* emulation, only works for normals and subnormals and +0 */
		1098	int neg = x >> 31;
		1099	int e = (x >> 23) & 0xffU;
		1100
		1101	x &= 0x7fffffU;
		1102
		1103	if (e)
		1104	x |= 0x800000U;
		1105	else
		1106	e = 1;
		1107
		1108	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1109	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1110
		1111	r = neg ? -r : r;
		1112	#endif
		1113
		1114	return r;
		1115	}
		1116
		1117	/* convert a double to ieee double/binary64 */
		1118	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1119	ecb_function_ uint64_t
		1120	ecb_double_to_binary64 (double x)
		1121	{
		1122	uint64_t r;
		1123
		1124	#if ECB_STDFP
		1125	memcpy (&r, &x, 8);
		1126	#else
		1127	/* slow emulation, works for anything but -0 */
		1128	uint64_t m;
		1129	int e;
		1130
		1131	if (x == 0e0 ) return 0x0000000000000000U;
		1132	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1133	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1134	if (x != x ) return 0X7ff7ffffffffffffU;
		1135
		1136	m = frexp (x, &e) * 0x20000000000000U;
		1137
		1138	r = m & 0x8000000000000000;;
		1139
		1140	if (r)
		1141	m = -m;
		1142
		1143	if (e <= -1022)
		1144	{
		1145	m &= 0x1fffffffffffffU;
		1146	m >>= (-1021 - e);
		1147	e = -1022;
		1148	}
		1149
		1150	r |= ((uint64_t)(e + 1022)) << 52;
		1151	r |= m & 0xfffffffffffffU;
		1152	#endif
		1153
		1154	return r;
		1155	}
		1156
		1157	/* converts an ieee double/binary64 to a double */
		1158	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1159	ecb_function_ double
		1160	ecb_binary64_to_double (uint64_t x)
		1161	{
		1162	double r;
		1163
		1164	#if ECB_STDFP
		1165	memcpy (&r, &x, 8);
		1166	#else
		1167	/* emulation, only works for normals and subnormals and +0 */
		1168	int neg = x >> 63;
		1169	int e = (x >> 52) & 0x7ffU;
		1170
		1171	x &= 0xfffffffffffffU;
		1172
		1173	if (e)
		1174	x |= 0x10000000000000U;
		1175	else
		1176	e = 1;
		1177
		1178	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1179	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1180
		1181	r = neg ? -r : r;
		1182	#endif
		1183
		1184	return r;
		1185	}
		1186
		1187	#endif
		1188
935	#endif	1189	#endif
936		1190
937	/* ECB.H END */	1191	/* ECB.H END */
938		1192
939	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1193	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
…		…
1105	{	1359	{
1106	write (STDERR_FILENO, msg, strlen (msg));	1360	write (STDERR_FILENO, msg, strlen (msg));
1107	}	1361	}
1108	#endif	1362	#endif
1109		1363
1110	static void (*syserr_cb)(const char *msg);	1364	static void (*syserr_cb)(const char *msg) EV_THROW;
1111		1365
1112	void ecb_cold	1366	void ecb_cold
1113	ev_set_syserr_cb (void (*cb)(const char *msg))	1367	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1114	{	1368	{
1115	syserr_cb = cb;	1369	syserr_cb = cb;
1116	}	1370	}
1117		1371
1118	static void noinline ecb_cold	1372	static void noinline ecb_cold
…		…
1136	abort ();	1390	abort ();
1137	}	1391	}
1138	}	1392	}
1139		1393
1140	static void *	1394	static void *
1141	ev_realloc_emul (void *ptr, long size)	1395	ev_realloc_emul (void *ptr, long size) EV_THROW
1142	{	1396	{
1143	#if __GLIBC__
1144	return realloc (ptr, size);
1145	#else
1146	/* some systems, notably openbsd and darwin, fail to properly	1397	/* some systems, notably openbsd and darwin, fail to properly
1147	* implement realloc (x, 0) (as required by both ansi c-89 and	1398	* implement realloc (x, 0) (as required by both ansi c-89 and
1148	* the single unix specification, so work around them here.	1399	* the single unix specification, so work around them here.
		1400	* recently, also (at least) fedora and debian started breaking it,
		1401	* despite documenting it otherwise.
1149	*/	1402	*/
1150		1403
1151	if (size)	1404	if (size)
1152	return realloc (ptr, size);	1405	return realloc (ptr, size);
1153		1406
1154	free (ptr);	1407	free (ptr);
1155	return 0;	1408	return 0;
1156	#endif
1157	}	1409	}
1158		1410
1159	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1411	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1160		1412
1161	void ecb_cold	1413	void ecb_cold
1162	ev_set_allocator (void *(*cb)(void *ptr, long size))	1414	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1163	{	1415	{
1164	alloc = cb;	1416	alloc = cb;
1165	}	1417	}
1166		1418
1167	inline_speed void *	1419	inline_speed void *
…		…
1284		1536
1285	/*****************************************************************************/	1537	/*****************************************************************************/
1286		1538
1287	#ifndef EV_HAVE_EV_TIME	1539	#ifndef EV_HAVE_EV_TIME
1288	ev_tstamp	1540	ev_tstamp
1289	ev_time (void)	1541	ev_time (void) EV_THROW
1290	{	1542	{
1291	#if EV_USE_REALTIME	1543	#if EV_USE_REALTIME
1292	if (expect_true (have_realtime))	1544	if (expect_true (have_realtime))
1293	{	1545	{
1294	struct timespec ts;	1546	struct timespec ts;
…		…
1318	return ev_time ();	1570	return ev_time ();
1319	}	1571	}
1320		1572
1321	#if EV_MULTIPLICITY	1573	#if EV_MULTIPLICITY
1322	ev_tstamp	1574	ev_tstamp
1323	ev_now (EV_P)	1575	ev_now (EV_P) EV_THROW
1324	{	1576	{
1325	return ev_rt_now;	1577	return ev_rt_now;
1326	}	1578	}
1327	#endif	1579	#endif
1328		1580
1329	void	1581	void
1330	ev_sleep (ev_tstamp delay)	1582	ev_sleep (ev_tstamp delay) EV_THROW
1331	{	1583	{
1332	if (delay > 0.)	1584	if (delay > 0.)
1333	{	1585	{
1334	#if EV_USE_NANOSLEEP	1586	#if EV_USE_NANOSLEEP
1335	struct timespec ts;	1587	struct timespec ts;
…		…
1416	pendingcb (EV_P_ ev_prepare *w, int revents)	1668	pendingcb (EV_P_ ev_prepare *w, int revents)
1417	{	1669	{
1418	}	1670	}
1419		1671
1420	void noinline	1672	void noinline
1421	ev_feed_event (EV_P_ void *w, int revents)	1673	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1422	{	1674	{
1423	W w_ = (W)w;	1675	W w_ = (W)w;
1424	int pri = ABSPRI (w_);	1676	int pri = ABSPRI (w_);
1425		1677
1426	if (expect_false (w_->pending))	1678	if (expect_false (w_->pending))
…		…
1430	w_->pending = ++pendingcnt [pri];	1682	w_->pending = ++pendingcnt [pri];
1431	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1683	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1432	pendings [pri][w_->pending - 1].w = w_;	1684	pendings [pri][w_->pending - 1].w = w_;
1433	pendings [pri][w_->pending - 1].events = revents;	1685	pendings [pri][w_->pending - 1].events = revents;
1434	}	1686	}
		1687
		1688	pendingpri = NUMPRI - 1;
1435	}	1689	}
1436		1690
1437	inline_speed void	1691	inline_speed void
1438	feed_reverse (EV_P_ W w)	1692	feed_reverse (EV_P_ W w)
1439	{	1693	{
…		…
1485	if (expect_true (!anfd->reify))	1739	if (expect_true (!anfd->reify))
1486	fd_event_nocheck (EV_A_ fd, revents);	1740	fd_event_nocheck (EV_A_ fd, revents);
1487	}	1741	}
1488		1742
1489	void	1743	void
1490	ev_feed_fd_event (EV_P_ int fd, int revents)	1744	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1491	{	1745	{
1492	if (fd >= 0 && fd < anfdmax)	1746	if (fd >= 0 && fd < anfdmax)
1493	fd_event_nocheck (EV_A_ fd, revents);	1747	fd_event_nocheck (EV_A_ fd, revents);
1494	}	1748	}
1495		1749
…		…
1814	static void noinline ecb_cold	2068	static void noinline ecb_cold
1815	evpipe_init (EV_P)	2069	evpipe_init (EV_P)
1816	{	2070	{
1817	if (!ev_is_active (&pipe_w))	2071	if (!ev_is_active (&pipe_w))
1818	{	2072	{
		2073	int fds [2];
		2074
1819	# if EV_USE_EVENTFD	2075	# if EV_USE_EVENTFD
		2076	fds [0] = -1;
1820	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2077	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1821	if (evfd < 0 && errno == EINVAL)	2078	if (fds [1] < 0 && errno == EINVAL)
1822	evfd = eventfd (0, 0);	2079	fds [1] = eventfd (0, 0);
1823		2080
1824	if (evfd >= 0)	2081	if (fds [1] < 0)
		2082	# endif
1825	{	2083	{
		2084	while (pipe (fds))
		2085	ev_syserr ("(libev) error creating signal/async pipe");
		2086
		2087	fd_intern (fds [0]);
		2088	}
		2089
		2090	fd_intern (fds [1]);
		2091
1826	evpipe [0] = -1;	2092	evpipe [0] = fds [0];
1827	fd_intern (evfd); /* doing it twice doesn't hurt */	2093
1828	ev_io_set (&pipe_w, evfd, EV_READ);	2094	if (evpipe [1] < 0)
		2095	evpipe [1] = fds [1]; /* first call, set write fd */
		2096	else
		2097	{
		2098	/* on subsequent calls, do not change evpipe [1] */
		2099	/* so that evpipe_write can always rely on its value. */
		2100	/* this branch does not do anything sensible on windows, */
		2101	/* so must not be executed on windows */
		2102
		2103	dup2 (fds [1], evpipe [1]);
		2104	close (fds [1]);
		2105	}
		2106
		2107	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2108	ev_io_start (EV_A_ &pipe_w);
		2109	ev_unref (EV_A); /* watcher should not keep loop alive */
		2110	}
		2111	}
		2112
		2113	inline_speed void
		2114	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2115	{
		2116	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2117
		2118	if (expect_true (*flag))
		2119	return;
		2120
		2121	*flag = 1;
		2122	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2123
		2124	pipe_write_skipped = 1;
		2125
		2126	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2127
		2128	if (pipe_write_wanted)
		2129	{
		2130	int old_errno;
		2131
		2132	pipe_write_skipped = 0;
		2133	ECB_MEMORY_FENCE_RELEASE;
		2134
		2135	old_errno = errno; /* save errno because write will clobber it */
		2136
		2137	#if EV_USE_EVENTFD
		2138	if (evpipe [0] < 0)
		2139	{
		2140	uint64_t counter = 1;
		2141	write (evpipe [1], &counter, sizeof (uint64_t));
1829	}	2142	}
1830	else	2143	else
1831	# endif	2144	#endif
1832	{	2145	{
1833	while (pipe (evpipe))	2146	#ifdef _WIN32
1834	ev_syserr ("(libev) error creating signal/async pipe");	2147	WSABUF buf;
1835		2148	DWORD sent;
1836	fd_intern (evpipe [0]);	2149	buf.buf = &buf;
1837	fd_intern (evpipe [1]);	2150	buf.len = 1;
1838	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2151	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1839	}	2152	#else
1840
1841	ev_io_start (EV_A_ &pipe_w);
1842	ev_unref (EV_A); /* watcher should not keep loop alive */
1843	}
1844	}
1845
1846	inline_speed void
1847	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1848	{
1849	if (expect_true (*flag))
1850	return;
1851
1852	*flag = 1;
1853
1854	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1855
1856	pipe_write_skipped = 1;
1857
1858	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1859
1860	if (pipe_write_wanted)
1861	{
1862	int old_errno;
1863
1864	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1865
1866	old_errno = errno; /* save errno because write will clobber it */
1867
1868	#if EV_USE_EVENTFD
1869	if (evfd >= 0)
1870	{
1871	uint64_t counter = 1;
1872	write (evfd, &counter, sizeof (uint64_t));
1873	}
1874	else
1875	#endif
1876	{
1877	/* win32 people keep sending patches that change this write() to send() */
1878	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1879	/* so when you think this write should be a send instead, please find out */
1880	/* where your send() is from - it's definitely not the microsoft send, and */
1881	/* tell me. thank you. */
1882	/* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1883	/* check the ev documentation on how to use this flag */
1884	write (evpipe [1], &(evpipe [1]), 1);	2153	write (evpipe [1], &(evpipe [1]), 1);
		2154	#endif
1885	}	2155	}
1886		2156
1887	errno = old_errno;	2157	errno = old_errno;
1888	}	2158	}
1889	}	2159	}
…		…
1896	int i;	2166	int i;
1897		2167
1898	if (revents & EV_READ)	2168	if (revents & EV_READ)
1899	{	2169	{
1900	#if EV_USE_EVENTFD	2170	#if EV_USE_EVENTFD
1901	if (evfd >= 0)	2171	if (evpipe [0] < 0)
1902	{	2172	{
1903	uint64_t counter;	2173	uint64_t counter;
1904	read (evfd, &counter, sizeof (uint64_t));	2174	read (evpipe [1], &counter, sizeof (uint64_t));
1905	}	2175	}
1906	else	2176	else
1907	#endif	2177	#endif
1908	{	2178	{
1909	char dummy;	2179	char dummy[4];
1910	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2180	#ifdef _WIN32
		2181	WSABUF buf;
		2182	DWORD recvd;
		2183	DWORD flags = 0;
		2184	buf.buf = dummy;
		2185	buf.len = sizeof (dummy);
		2186	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2187	#else
1911	read (evpipe [0], &dummy, 1);	2188	read (evpipe [0], &dummy, sizeof (dummy));
		2189	#endif
1912	}	2190	}
1913	}	2191	}
1914		2192
1915	pipe_write_skipped = 0;	2193	pipe_write_skipped = 0;
		2194
		2195	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1916		2196
1917	#if EV_SIGNAL_ENABLE	2197	#if EV_SIGNAL_ENABLE
1918	if (sig_pending)	2198	if (sig_pending)
1919	{	2199	{
1920	sig_pending = 0;	2200	sig_pending = 0;
		2201
		2202	ECB_MEMORY_FENCE;
1921		2203
1922	for (i = EV_NSIG - 1; i--; )	2204	for (i = EV_NSIG - 1; i--; )
1923	if (expect_false (signals [i].pending))	2205	if (expect_false (signals [i].pending))
1924	ev_feed_signal_event (EV_A_ i + 1);	2206	ev_feed_signal_event (EV_A_ i + 1);
1925	}	2207	}
…		…
1927		2209
1928	#if EV_ASYNC_ENABLE	2210	#if EV_ASYNC_ENABLE
1929	if (async_pending)	2211	if (async_pending)
1930	{	2212	{
1931	async_pending = 0;	2213	async_pending = 0;
		2214
		2215	ECB_MEMORY_FENCE;
1932		2216
1933	for (i = asynccnt; i--; )	2217	for (i = asynccnt; i--; )
1934	if (asyncs [i]->sent)	2218	if (asyncs [i]->sent)
1935	{	2219	{
1936	asyncs [i]->sent = 0;	2220	asyncs [i]->sent = 0;
		2221	ECB_MEMORY_FENCE_RELEASE;
1937	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2222	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1938	}	2223	}
1939	}	2224	}
1940	#endif	2225	#endif
1941	}	2226	}
1942		2227
1943	/*****************************************************************************/	2228	/*****************************************************************************/
1944		2229
1945	void	2230	void
1946	ev_feed_signal (int signum)	2231	ev_feed_signal (int signum) EV_THROW
1947	{	2232	{
1948	#if EV_MULTIPLICITY	2233	#if EV_MULTIPLICITY
		2234	ECB_MEMORY_FENCE_ACQUIRE;
1949	EV_P = signals [signum - 1].loop;	2235	EV_P = signals [signum - 1].loop;
1950		2236
1951	if (!EV_A)	2237	if (!EV_A)
1952	return;	2238	return;
1953	#endif	2239	#endif
1954		2240
1955	if (!ev_active (&pipe_w))
1956	return;
1957
1958	signals [signum - 1].pending = 1;	2241	signals [signum - 1].pending = 1;
1959	evpipe_write (EV_A_ &sig_pending);	2242	evpipe_write (EV_A_ &sig_pending);
1960	}	2243	}
1961		2244
1962	static void	2245	static void
…		…
1968		2251
1969	ev_feed_signal (signum);	2252	ev_feed_signal (signum);
1970	}	2253	}
1971		2254
1972	void noinline	2255	void noinline
1973	ev_feed_signal_event (EV_P_ int signum)	2256	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1974	{	2257	{
1975	WL w;	2258	WL w;
1976		2259
1977	if (expect_false (signum <= 0 || signum > EV_NSIG))	2260	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1978	return;	2261	return;
1979		2262
1980	--signum;	2263	--signum;
1981		2264
1982	#if EV_MULTIPLICITY	2265	#if EV_MULTIPLICITY
…		…
1986	if (expect_false (signals [signum].loop != EV_A))	2269	if (expect_false (signals [signum].loop != EV_A))
1987	return;	2270	return;
1988	#endif	2271	#endif
1989		2272
1990	signals [signum].pending = 0;	2273	signals [signum].pending = 0;
		2274	ECB_MEMORY_FENCE_RELEASE;
1991		2275
1992	for (w = signals [signum].head; w; w = w->next)	2276	for (w = signals [signum].head; w; w = w->next)
1993	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2277	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1994	}	2278	}
1995		2279
…		…
2094	#if EV_USE_SELECT	2378	#if EV_USE_SELECT
2095	# include "ev_select.c"	2379	# include "ev_select.c"
2096	#endif	2380	#endif
2097		2381
2098	int ecb_cold	2382	int ecb_cold
2099	ev_version_major (void)	2383	ev_version_major (void) EV_THROW
2100	{	2384	{
2101	return EV_VERSION_MAJOR;	2385	return EV_VERSION_MAJOR;
2102	}	2386	}
2103		2387
2104	int ecb_cold	2388	int ecb_cold
2105	ev_version_minor (void)	2389	ev_version_minor (void) EV_THROW
2106	{	2390	{
2107	return EV_VERSION_MINOR;	2391	return EV_VERSION_MINOR;
2108	}	2392	}
2109		2393
2110	/* return true if we are running with elevated privileges and should ignore env variables */	2394	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
2118	|| getgid () != getegid ();	2402	|| getgid () != getegid ();
2119	#endif	2403	#endif
2120	}	2404	}
2121		2405
2122	unsigned int ecb_cold	2406	unsigned int ecb_cold
2123	ev_supported_backends (void)	2407	ev_supported_backends (void) EV_THROW
2124	{	2408	{
2125	unsigned int flags = 0;	2409	unsigned int flags = 0;
2126		2410
2127	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2411	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2128	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2412	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2132		2416
2133	return flags;	2417	return flags;
2134	}	2418	}
2135		2419
2136	unsigned int ecb_cold	2420	unsigned int ecb_cold
2137	ev_recommended_backends (void)	2421	ev_recommended_backends (void) EV_THROW
2138	{	2422	{
2139	unsigned int flags = ev_supported_backends ();	2423	unsigned int flags = ev_supported_backends ();
2140		2424
2141	#ifndef __NetBSD__	2425	#ifndef __NetBSD__
2142	/* kqueue is borked on everything but netbsd apparently */	2426	/* kqueue is borked on everything but netbsd apparently */
…		…
2154		2438
2155	return flags;	2439	return flags;
2156	}	2440	}
2157		2441
2158	unsigned int ecb_cold	2442	unsigned int ecb_cold
2159	ev_embeddable_backends (void)	2443	ev_embeddable_backends (void) EV_THROW
2160	{	2444	{
2161	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2445	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2162		2446
2163	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2447	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2164	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2448	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2166		2450
2167	return flags;	2451	return flags;
2168	}	2452	}
2169		2453
2170	unsigned int	2454	unsigned int
2171	ev_backend (EV_P)	2455	ev_backend (EV_P) EV_THROW
2172	{	2456	{
2173	return backend;	2457	return backend;
2174	}	2458	}
2175		2459
2176	#if EV_FEATURE_API	2460	#if EV_FEATURE_API
2177	unsigned int	2461	unsigned int
2178	ev_iteration (EV_P)	2462	ev_iteration (EV_P) EV_THROW
2179	{	2463	{
2180	return loop_count;	2464	return loop_count;
2181	}	2465	}
2182		2466
2183	unsigned int	2467	unsigned int
2184	ev_depth (EV_P)	2468	ev_depth (EV_P) EV_THROW
2185	{	2469	{
2186	return loop_depth;	2470	return loop_depth;
2187	}	2471	}
2188		2472
2189	void	2473	void
2190	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2474	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2191	{	2475	{
2192	io_blocktime = interval;	2476	io_blocktime = interval;
2193	}	2477	}
2194		2478
2195	void	2479	void
2196	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2480	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2197	{	2481	{
2198	timeout_blocktime = interval;	2482	timeout_blocktime = interval;
2199	}	2483	}
2200		2484
2201	void	2485	void
2202	ev_set_userdata (EV_P_ void *data)	2486	ev_set_userdata (EV_P_ void *data) EV_THROW
2203	{	2487	{
2204	userdata = data;	2488	userdata = data;
2205	}	2489	}
2206		2490
2207	void *	2491	void *
2208	ev_userdata (EV_P)	2492	ev_userdata (EV_P) EV_THROW
2209	{	2493	{
2210	return userdata;	2494	return userdata;
2211	}	2495	}
2212		2496
2213	void	2497	void
2214	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2498	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2215	{	2499	{
2216	invoke_cb = invoke_pending_cb;	2500	invoke_cb = invoke_pending_cb;
2217	}	2501	}
2218		2502
2219	void	2503	void
2220	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2504	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2221	{	2505	{
2222	release_cb = release;	2506	release_cb = release;
2223	acquire_cb = acquire;	2507	acquire_cb = acquire;
2224	}	2508	}
2225	#endif	2509	#endif
2226		2510
2227	/* initialise a loop structure, must be zero-initialised */	2511	/* initialise a loop structure, must be zero-initialised */
2228	static void noinline ecb_cold	2512	static void noinline ecb_cold
2229	loop_init (EV_P_ unsigned int flags)	2513	loop_init (EV_P_ unsigned int flags) EV_THROW
2230	{	2514	{
2231	if (!backend)	2515	if (!backend)
2232	{	2516	{
2233	origflags = flags;	2517	origflags = flags;
2234		2518
…		…
2279	#if EV_ASYNC_ENABLE	2563	#if EV_ASYNC_ENABLE
2280	async_pending = 0;	2564	async_pending = 0;
2281	#endif	2565	#endif
2282	pipe_write_skipped = 0;	2566	pipe_write_skipped = 0;
2283	pipe_write_wanted = 0;	2567	pipe_write_wanted = 0;
		2568	evpipe [0] = -1;
		2569	evpipe [1] = -1;
2284	#if EV_USE_INOTIFY	2570	#if EV_USE_INOTIFY
2285	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2571	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2286	#endif	2572	#endif
2287	#if EV_USE_SIGNALFD	2573	#if EV_USE_SIGNALFD
2288	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2574	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2339	EV_INVOKE_PENDING;	2625	EV_INVOKE_PENDING;
2340	}	2626	}
2341	#endif	2627	#endif
2342		2628
2343	#if EV_CHILD_ENABLE	2629	#if EV_CHILD_ENABLE
2344	if (ev_is_active (&childev))	2630	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2345	{	2631	{
2346	ev_ref (EV_A); /* child watcher */	2632	ev_ref (EV_A); /* child watcher */
2347	ev_signal_stop (EV_A_ &childev);	2633	ev_signal_stop (EV_A_ &childev);
2348	}	2634	}
2349	#endif	2635	#endif
…		…
2351	if (ev_is_active (&pipe_w))	2637	if (ev_is_active (&pipe_w))
2352	{	2638	{
2353	/*ev_ref (EV_A);*/	2639	/*ev_ref (EV_A);*/
2354	/*ev_io_stop (EV_A_ &pipe_w);*/	2640	/*ev_io_stop (EV_A_ &pipe_w);*/
2355		2641
2356	#if EV_USE_EVENTFD
2357	if (evfd >= 0)
2358	close (evfd);
2359	#endif
2360
2361	if (evpipe [0] >= 0)
2362	{
2363	EV_WIN32_CLOSE_FD (evpipe [0]);	2642	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2364	EV_WIN32_CLOSE_FD (evpipe [1]);	2643	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2365	}
2366	}	2644	}
2367		2645
2368	#if EV_USE_SIGNALFD	2646	#if EV_USE_SIGNALFD
2369	if (ev_is_active (&sigfd_w))	2647	if (ev_is_active (&sigfd_w))
2370	close (sigfd);	2648	close (sigfd);
…		…
2456	#endif	2734	#endif
2457	#if EV_USE_INOTIFY	2735	#if EV_USE_INOTIFY
2458	infy_fork (EV_A);	2736	infy_fork (EV_A);
2459	#endif	2737	#endif
2460		2738
		2739	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2461	if (ev_is_active (&pipe_w))	2740	if (ev_is_active (&pipe_w))
2462	{	2741	{
2463	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2742	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2464		2743
2465	ev_ref (EV_A);	2744	ev_ref (EV_A);
2466	ev_io_stop (EV_A_ &pipe_w);	2745	ev_io_stop (EV_A_ &pipe_w);
2467		2746
2468	#if EV_USE_EVENTFD
2469	if (evfd >= 0)
2470	close (evfd);
2471	#endif
2472
2473	if (evpipe [0] >= 0)	2747	if (evpipe [0] >= 0)
2474	{
2475	EV_WIN32_CLOSE_FD (evpipe [0]);	2748	EV_WIN32_CLOSE_FD (evpipe [0]);
2476	EV_WIN32_CLOSE_FD (evpipe [1]);
2477	}
2478		2749
2479	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2480	evpipe_init (EV_A);	2750	evpipe_init (EV_A);
2481	/* now iterate over everything, in case we missed something */	2751	/* iterate over everything, in case we missed something before */
2482	pipecb (EV_A_ &pipe_w, EV_READ);	2752	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2483	#endif
2484	}	2753	}
		2754	#endif
2485		2755
2486	postfork = 0;	2756	postfork = 0;
2487	}	2757	}
2488		2758
2489	#if EV_MULTIPLICITY	2759	#if EV_MULTIPLICITY
2490		2760
2491	struct ev_loop * ecb_cold	2761	struct ev_loop * ecb_cold
2492	ev_loop_new (unsigned int flags)	2762	ev_loop_new (unsigned int flags) EV_THROW
2493	{	2763	{
2494	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2764	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2495		2765
2496	memset (EV_A, 0, sizeof (struct ev_loop));	2766	memset (EV_A, 0, sizeof (struct ev_loop));
2497	loop_init (EV_A_ flags);	2767	loop_init (EV_A_ flags);
…		…
2541	}	2811	}
2542	#endif	2812	#endif
2543		2813
2544	#if EV_FEATURE_API	2814	#if EV_FEATURE_API
2545	void ecb_cold	2815	void ecb_cold
2546	ev_verify (EV_P)	2816	ev_verify (EV_P) EV_THROW
2547	{	2817	{
2548	#if EV_VERIFY	2818	#if EV_VERIFY
2549	int i;	2819	int i;
2550	WL w;	2820	WL w, w2;
2551		2821
2552	assert (activecnt >= -1);	2822	assert (activecnt >= -1);
2553		2823
2554	assert (fdchangemax >= fdchangecnt);	2824	assert (fdchangemax >= fdchangecnt);
2555	for (i = 0; i < fdchangecnt; ++i)	2825	for (i = 0; i < fdchangecnt; ++i)
2556	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2826	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2557		2827
2558	assert (anfdmax >= 0);	2828	assert (anfdmax >= 0);
2559	for (i = 0; i < anfdmax; ++i)	2829	for (i = 0; i < anfdmax; ++i)
		2830	{
		2831	int j = 0;
		2832
2560	for (w = anfds [i].head; w; w = w->next)	2833	for (w = w2 = anfds [i].head; w; w = w->next)
2561	{	2834	{
2562	verify_watcher (EV_A_ (W)w);	2835	verify_watcher (EV_A_ (W)w);
		2836
		2837	if (j++ & 1)
		2838	{
		2839	assert (("libev: io watcher list contains a loop", w != w2));
		2840	w2 = w2->next;
		2841	}
		2842
2563	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2843	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2564	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));	2844	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2565	}	2845	}
		2846	}
2566		2847
2567	assert (timermax >= timercnt);	2848	assert (timermax >= timercnt);
2568	verify_heap (EV_A_ timers, timercnt);	2849	verify_heap (EV_A_ timers, timercnt);
2569		2850
2570	#if EV_PERIODIC_ENABLE	2851	#if EV_PERIODIC_ENABLE
…		…
2620	#if EV_MULTIPLICITY	2901	#if EV_MULTIPLICITY
2621	struct ev_loop * ecb_cold	2902	struct ev_loop * ecb_cold
2622	#else	2903	#else
2623	int	2904	int
2624	#endif	2905	#endif
2625	ev_default_loop (unsigned int flags)	2906	ev_default_loop (unsigned int flags) EV_THROW
2626	{	2907	{
2627	if (!ev_default_loop_ptr)	2908	if (!ev_default_loop_ptr)
2628	{	2909	{
2629	#if EV_MULTIPLICITY	2910	#if EV_MULTIPLICITY
2630	EV_P = ev_default_loop_ptr = &default_loop_struct;	2911	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2649		2930
2650	return ev_default_loop_ptr;	2931	return ev_default_loop_ptr;
2651	}	2932	}
2652		2933
2653	void	2934	void
2654	ev_loop_fork (EV_P)	2935	ev_loop_fork (EV_P) EV_THROW
2655	{	2936	{
2656	postfork = 1; /* must be in line with ev_default_fork */	2937	postfork = 1;
2657	}	2938	}
2658		2939
2659	/*****************************************************************************/	2940	/*****************************************************************************/
2660		2941
2661	void	2942	void
…		…
2663	{	2944	{
2664	EV_CB_INVOKE ((W)w, revents);	2945	EV_CB_INVOKE ((W)w, revents);
2665	}	2946	}
2666		2947
2667	unsigned int	2948	unsigned int
2668	ev_pending_count (EV_P)	2949	ev_pending_count (EV_P) EV_THROW
2669	{	2950	{
2670	int pri;	2951	int pri;
2671	unsigned int count = 0;	2952	unsigned int count = 0;
2672		2953
2673	for (pri = NUMPRI; pri--; )	2954	for (pri = NUMPRI; pri--; )
…		…
2677	}	2958	}
2678		2959
2679	void noinline	2960	void noinline
2680	ev_invoke_pending (EV_P)	2961	ev_invoke_pending (EV_P)
2681	{	2962	{
2682	int pri;	2963	pendingpri = NUMPRI;
2683		2964
2684	for (pri = NUMPRI; pri--; )	2965	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2966	{
		2967	--pendingpri;
		2968
2685	while (pendingcnt [pri])	2969	while (pendingcnt [pendingpri])
2686	{	2970	{
2687	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2971	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2688		2972
2689	p->w->pending = 0;	2973	p->w->pending = 0;
2690	EV_CB_INVOKE (p->w, p->events);	2974	EV_CB_INVOKE (p->w, p->events);
2691	EV_FREQUENT_CHECK;	2975	EV_FREQUENT_CHECK;
2692	}	2976	}
		2977	}
2693	}	2978	}
2694		2979
2695	#if EV_IDLE_ENABLE	2980	#if EV_IDLE_ENABLE
2696	/* make idle watchers pending. this handles the "call-idle */	2981	/* make idle watchers pending. this handles the "call-idle */
2697	/* only when higher priorities are idle" logic */	2982	/* only when higher priorities are idle" logic */
…		…
2787	{	3072	{
2788	EV_FREQUENT_CHECK;	3073	EV_FREQUENT_CHECK;
2789		3074
2790	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3075	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2791	{	3076	{
2792	int feed_count = 0;
2793
2794	do	3077	do
2795	{	3078	{
2796	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3079	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2797		3080
2798	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3081	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
3057	backend_poll (EV_A_ waittime);	3340	backend_poll (EV_A_ waittime);
3058	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3341	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3059		3342
3060	pipe_write_wanted = 0; /* just an optimisation, no fence needed */	3343	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3061		3344
		3345	ECB_MEMORY_FENCE_ACQUIRE;
3062	if (pipe_write_skipped)	3346	if (pipe_write_skipped)
3063	{	3347	{
3064	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3348	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3065	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3349	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3066	}	3350	}
…		…
3104		3388
3105	return activecnt;	3389	return activecnt;
3106	}	3390	}
3107		3391
3108	void	3392	void
3109	ev_break (EV_P_ int how)	3393	ev_break (EV_P_ int how) EV_THROW
3110	{	3394	{
3111	loop_done = how;	3395	loop_done = how;
3112	}	3396	}
3113		3397
3114	void	3398	void
3115	ev_ref (EV_P)	3399	ev_ref (EV_P) EV_THROW
3116	{	3400	{
3117	++activecnt;	3401	++activecnt;
3118	}	3402	}
3119		3403
3120	void	3404	void
3121	ev_unref (EV_P)	3405	ev_unref (EV_P) EV_THROW
3122	{	3406	{
3123	--activecnt;	3407	--activecnt;
3124	}	3408	}
3125		3409
3126	void	3410	void
3127	ev_now_update (EV_P)	3411	ev_now_update (EV_P) EV_THROW
3128	{	3412	{
3129	time_update (EV_A_ 1e100);	3413	time_update (EV_A_ 1e100);
3130	}	3414	}
3131		3415
3132	void	3416	void
3133	ev_suspend (EV_P)	3417	ev_suspend (EV_P) EV_THROW
3134	{	3418	{
3135	ev_now_update (EV_A);	3419	ev_now_update (EV_A);
3136	}	3420	}
3137		3421
3138	void	3422	void
3139	ev_resume (EV_P)	3423	ev_resume (EV_P) EV_THROW
3140	{	3424	{
3141	ev_tstamp mn_prev = mn_now;	3425	ev_tstamp mn_prev = mn_now;
3142		3426
3143	ev_now_update (EV_A);	3427	ev_now_update (EV_A);
3144	timers_reschedule (EV_A_ mn_now - mn_prev);	3428	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3183	w->pending = 0;	3467	w->pending = 0;
3184	}	3468	}
3185	}	3469	}
3186		3470
3187	int	3471	int
3188	ev_clear_pending (EV_P_ void *w)	3472	ev_clear_pending (EV_P_ void *w) EV_THROW
3189	{	3473	{
3190	W w_ = (W)w;	3474	W w_ = (W)w;
3191	int pending = w_->pending;	3475	int pending = w_->pending;
3192		3476
3193	if (expect_true (pending))	3477	if (expect_true (pending))
…		…
3226	}	3510	}
3227		3511
3228	/*****************************************************************************/	3512	/*****************************************************************************/
3229		3513
3230	void noinline	3514	void noinline
3231	ev_io_start (EV_P_ ev_io *w)	3515	ev_io_start (EV_P_ ev_io *w) EV_THROW
3232	{	3516	{
3233	int fd = w->fd;	3517	int fd = w->fd;
3234		3518
3235	if (expect_false (ev_is_active (w)))	3519	if (expect_false (ev_is_active (w)))
3236	return;	3520	return;
…		…
3242		3526
3243	ev_start (EV_A_ (W)w, 1);	3527	ev_start (EV_A_ (W)w, 1);
3244	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3528	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3245	wlist_add (&anfds[fd].head, (WL)w);	3529	wlist_add (&anfds[fd].head, (WL)w);
3246		3530
		3531	/* common bug, apparently */
		3532	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3533
3247	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3534	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3248	w->events &= ~EV__IOFDSET;	3535	w->events &= ~EV__IOFDSET;
3249		3536
3250	EV_FREQUENT_CHECK;	3537	EV_FREQUENT_CHECK;
3251	}	3538	}
3252		3539
3253	void noinline	3540	void noinline
3254	ev_io_stop (EV_P_ ev_io *w)	3541	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3255	{	3542	{
3256	clear_pending (EV_A_ (W)w);	3543	clear_pending (EV_A_ (W)w);
3257	if (expect_false (!ev_is_active (w)))	3544	if (expect_false (!ev_is_active (w)))
3258	return;	3545	return;
3259		3546
…		…
3268		3555
3269	EV_FREQUENT_CHECK;	3556	EV_FREQUENT_CHECK;
3270	}	3557	}
3271		3558
3272	void noinline	3559	void noinline
3273	ev_timer_start (EV_P_ ev_timer *w)	3560	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3274	{	3561	{
3275	if (expect_false (ev_is_active (w)))	3562	if (expect_false (ev_is_active (w)))
3276	return;	3563	return;
3277		3564
3278	ev_at (w) += mn_now;	3565	ev_at (w) += mn_now;
…		…
3292		3579
3293	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3580	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3294	}	3581	}
3295		3582
3296	void noinline	3583	void noinline
3297	ev_timer_stop (EV_P_ ev_timer *w)	3584	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3298	{	3585	{
3299	clear_pending (EV_A_ (W)w);	3586	clear_pending (EV_A_ (W)w);
3300	if (expect_false (!ev_is_active (w)))	3587	if (expect_false (!ev_is_active (w)))
3301	return;	3588	return;
3302		3589
…		…
3322		3609
3323	EV_FREQUENT_CHECK;	3610	EV_FREQUENT_CHECK;
3324	}	3611	}
3325		3612
3326	void noinline	3613	void noinline
3327	ev_timer_again (EV_P_ ev_timer *w)	3614	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3328	{	3615	{
3329	EV_FREQUENT_CHECK;	3616	EV_FREQUENT_CHECK;
3330		3617
3331	clear_pending (EV_A_ (W)w);	3618	clear_pending (EV_A_ (W)w);
3332		3619
…		…
3349		3636
3350	EV_FREQUENT_CHECK;	3637	EV_FREQUENT_CHECK;
3351	}	3638	}
3352		3639
3353	ev_tstamp	3640	ev_tstamp
3354	ev_timer_remaining (EV_P_ ev_timer *w)	3641	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3355	{	3642	{
3356	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3643	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3357	}	3644	}
3358		3645
3359	#if EV_PERIODIC_ENABLE	3646	#if EV_PERIODIC_ENABLE
3360	void noinline	3647	void noinline
3361	ev_periodic_start (EV_P_ ev_periodic *w)	3648	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3362	{	3649	{
3363	if (expect_false (ev_is_active (w)))	3650	if (expect_false (ev_is_active (w)))
3364	return;	3651	return;
3365		3652
3366	if (w->reschedule_cb)	3653	if (w->reschedule_cb)
…		…
3386		3673
3387	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3674	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3388	}	3675	}
3389		3676
3390	void noinline	3677	void noinline
3391	ev_periodic_stop (EV_P_ ev_periodic *w)	3678	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3392	{	3679	{
3393	clear_pending (EV_A_ (W)w);	3680	clear_pending (EV_A_ (W)w);
3394	if (expect_false (!ev_is_active (w)))	3681	if (expect_false (!ev_is_active (w)))
3395	return;	3682	return;
3396		3683
…		…
3414		3701
3415	EV_FREQUENT_CHECK;	3702	EV_FREQUENT_CHECK;
3416	}	3703	}
3417		3704
3418	void noinline	3705	void noinline
3419	ev_periodic_again (EV_P_ ev_periodic *w)	3706	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3420	{	3707	{
3421	/* TODO: use adjustheap and recalculation */	3708	/* TODO: use adjustheap and recalculation */
3422	ev_periodic_stop (EV_A_ w);	3709	ev_periodic_stop (EV_A_ w);
3423	ev_periodic_start (EV_A_ w);	3710	ev_periodic_start (EV_A_ w);
3424	}	3711	}
…		…
3429	#endif	3716	#endif
3430		3717
3431	#if EV_SIGNAL_ENABLE	3718	#if EV_SIGNAL_ENABLE
3432		3719
3433	void noinline	3720	void noinline
3434	ev_signal_start (EV_P_ ev_signal *w)	3721	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3435	{	3722	{
3436	if (expect_false (ev_is_active (w)))	3723	if (expect_false (ev_is_active (w)))
3437	return;	3724	return;
3438		3725
3439	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3726	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3441	#if EV_MULTIPLICITY	3728	#if EV_MULTIPLICITY
3442	assert (("libev: a signal must not be attached to two different loops",	3729	assert (("libev: a signal must not be attached to two different loops",
3443	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3730	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3444		3731
3445	signals [w->signum - 1].loop = EV_A;	3732	signals [w->signum - 1].loop = EV_A;
		3733	ECB_MEMORY_FENCE_RELEASE;
3446	#endif	3734	#endif
3447		3735
3448	EV_FREQUENT_CHECK;	3736	EV_FREQUENT_CHECK;
3449		3737
3450	#if EV_USE_SIGNALFD	3738	#if EV_USE_SIGNALFD
…		…
3510		3798
3511	EV_FREQUENT_CHECK;	3799	EV_FREQUENT_CHECK;
3512	}	3800	}
3513		3801
3514	void noinline	3802	void noinline
3515	ev_signal_stop (EV_P_ ev_signal *w)	3803	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3516	{	3804	{
3517	clear_pending (EV_A_ (W)w);	3805	clear_pending (EV_A_ (W)w);
3518	if (expect_false (!ev_is_active (w)))	3806	if (expect_false (!ev_is_active (w)))
3519	return;	3807	return;
3520		3808
…		…
3551	#endif	3839	#endif
3552		3840
3553	#if EV_CHILD_ENABLE	3841	#if EV_CHILD_ENABLE
3554		3842
3555	void	3843	void
3556	ev_child_start (EV_P_ ev_child *w)	3844	ev_child_start (EV_P_ ev_child *w) EV_THROW
3557	{	3845	{
3558	#if EV_MULTIPLICITY	3846	#if EV_MULTIPLICITY
3559	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3847	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3560	#endif	3848	#endif
3561	if (expect_false (ev_is_active (w)))	3849	if (expect_false (ev_is_active (w)))
…		…
3568		3856
3569	EV_FREQUENT_CHECK;	3857	EV_FREQUENT_CHECK;
3570	}	3858	}
3571		3859
3572	void	3860	void
3573	ev_child_stop (EV_P_ ev_child *w)	3861	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3574	{	3862	{
3575	clear_pending (EV_A_ (W)w);	3863	clear_pending (EV_A_ (W)w);
3576	if (expect_false (!ev_is_active (w)))	3864	if (expect_false (!ev_is_active (w)))
3577	return;	3865	return;
3578		3866
…		…
3605	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3893	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3606		3894
3607	static void noinline	3895	static void noinline
3608	infy_add (EV_P_ ev_stat *w)	3896	infy_add (EV_P_ ev_stat *w)
3609	{	3897	{
3610	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);	3898	w->wd = inotify_add_watch (fs_fd, w->path,
		3899	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		3900	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		3901	| IN_DONT_FOLLOW | IN_MASK_ADD);
3611		3902
3612	if (w->wd >= 0)	3903	if (w->wd >= 0)
3613	{	3904	{
3614	struct statfs sfs;	3905	struct statfs sfs;
3615		3906
…		…
3619		3910
3620	if (!fs_2625)	3911	if (!fs_2625)
3621	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3912	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3622	else if (!statfs (w->path, &sfs)	3913	else if (!statfs (w->path, &sfs)
3623	&& (sfs.f_type == 0x1373 /* devfs */	3914	&& (sfs.f_type == 0x1373 /* devfs */
		3915	|| sfs.f_type == 0x4006 /* fat */
		3916	|| sfs.f_type == 0x4d44 /* msdos */
3624	|| sfs.f_type == 0xEF53 /* ext2/3 */	3917	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3918	|| sfs.f_type == 0x72b6 /* jffs2 */
		3919	|| sfs.f_type == 0x858458f6 /* ramfs */
		3920	|| sfs.f_type == 0x5346544e /* ntfs */
3625	|| sfs.f_type == 0x3153464a /* jfs */	3921	|| sfs.f_type == 0x3153464a /* jfs */
		3922	|| sfs.f_type == 0x9123683e /* btrfs */
3626	|| sfs.f_type == 0x52654973 /* reiser3 */	3923	|| sfs.f_type == 0x52654973 /* reiser3 */
3627	|| sfs.f_type == 0x01021994 /* tempfs */	3924	|| sfs.f_type == 0x01021994 /* tmpfs */
3628	|| sfs.f_type == 0x58465342 /* xfs */))	3925	|| sfs.f_type == 0x58465342 /* xfs */))
3629	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	3926	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3630	else	3927	else
3631	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	3928	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3632	}	3929	}
…		…
3830	#else	4127	#else
3831	# define EV_LSTAT(p,b) lstat (p, b)	4128	# define EV_LSTAT(p,b) lstat (p, b)
3832	#endif	4129	#endif
3833		4130
3834	void	4131	void
3835	ev_stat_stat (EV_P_ ev_stat *w)	4132	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3836	{	4133	{
3837	if (lstat (w->path, &w->attr) < 0)	4134	if (lstat (w->path, &w->attr) < 0)
3838	w->attr.st_nlink = 0;	4135	w->attr.st_nlink = 0;
3839	else if (!w->attr.st_nlink)	4136	else if (!w->attr.st_nlink)
3840	w->attr.st_nlink = 1;	4137	w->attr.st_nlink = 1;
…		…
3879	ev_feed_event (EV_A_ w, EV_STAT);	4176	ev_feed_event (EV_A_ w, EV_STAT);
3880	}	4177	}
3881	}	4178	}
3882		4179
3883	void	4180	void
3884	ev_stat_start (EV_P_ ev_stat *w)	4181	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3885	{	4182	{
3886	if (expect_false (ev_is_active (w)))	4183	if (expect_false (ev_is_active (w)))
3887	return;	4184	return;
3888		4185
3889	ev_stat_stat (EV_A_ w);	4186	ev_stat_stat (EV_A_ w);
…		…
3910		4207
3911	EV_FREQUENT_CHECK;	4208	EV_FREQUENT_CHECK;
3912	}	4209	}
3913		4210
3914	void	4211	void
3915	ev_stat_stop (EV_P_ ev_stat *w)	4212	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3916	{	4213	{
3917	clear_pending (EV_A_ (W)w);	4214	clear_pending (EV_A_ (W)w);
3918	if (expect_false (!ev_is_active (w)))	4215	if (expect_false (!ev_is_active (w)))
3919	return;	4216	return;
3920		4217
…		…
3936	}	4233	}
3937	#endif	4234	#endif
3938		4235
3939	#if EV_IDLE_ENABLE	4236	#if EV_IDLE_ENABLE
3940	void	4237	void
3941	ev_idle_start (EV_P_ ev_idle *w)	4238	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3942	{	4239	{
3943	if (expect_false (ev_is_active (w)))	4240	if (expect_false (ev_is_active (w)))
3944	return;	4241	return;
3945		4242
3946	pri_adjust (EV_A_ (W)w);	4243	pri_adjust (EV_A_ (W)w);
…		…
3959		4256
3960	EV_FREQUENT_CHECK;	4257	EV_FREQUENT_CHECK;
3961	}	4258	}
3962		4259
3963	void	4260	void
3964	ev_idle_stop (EV_P_ ev_idle *w)	4261	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3965	{	4262	{
3966	clear_pending (EV_A_ (W)w);	4263	clear_pending (EV_A_ (W)w);
3967	if (expect_false (!ev_is_active (w)))	4264	if (expect_false (!ev_is_active (w)))
3968	return;	4265	return;
3969		4266
…		…
3983	}	4280	}
3984	#endif	4281	#endif
3985		4282
3986	#if EV_PREPARE_ENABLE	4283	#if EV_PREPARE_ENABLE
3987	void	4284	void
3988	ev_prepare_start (EV_P_ ev_prepare *w)	4285	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3989	{	4286	{
3990	if (expect_false (ev_is_active (w)))	4287	if (expect_false (ev_is_active (w)))
3991	return;	4288	return;
3992		4289
3993	EV_FREQUENT_CHECK;	4290	EV_FREQUENT_CHECK;
…		…
3998		4295
3999	EV_FREQUENT_CHECK;	4296	EV_FREQUENT_CHECK;
4000	}	4297	}
4001		4298
4002	void	4299	void
4003	ev_prepare_stop (EV_P_ ev_prepare *w)	4300	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4004	{	4301	{
4005	clear_pending (EV_A_ (W)w);	4302	clear_pending (EV_A_ (W)w);
4006	if (expect_false (!ev_is_active (w)))	4303	if (expect_false (!ev_is_active (w)))
4007	return;	4304	return;
4008		4305
…		…
4021	}	4318	}
4022	#endif	4319	#endif
4023		4320
4024	#if EV_CHECK_ENABLE	4321	#if EV_CHECK_ENABLE
4025	void	4322	void
4026	ev_check_start (EV_P_ ev_check *w)	4323	ev_check_start (EV_P_ ev_check *w) EV_THROW
4027	{	4324	{
4028	if (expect_false (ev_is_active (w)))	4325	if (expect_false (ev_is_active (w)))
4029	return;	4326	return;
4030		4327
4031	EV_FREQUENT_CHECK;	4328	EV_FREQUENT_CHECK;
…		…
4036		4333
4037	EV_FREQUENT_CHECK;	4334	EV_FREQUENT_CHECK;
4038	}	4335	}
4039		4336
4040	void	4337	void
4041	ev_check_stop (EV_P_ ev_check *w)	4338	ev_check_stop (EV_P_ ev_check *w) EV_THROW
4042	{	4339	{
4043	clear_pending (EV_A_ (W)w);	4340	clear_pending (EV_A_ (W)w);
4044	if (expect_false (!ev_is_active (w)))	4341	if (expect_false (!ev_is_active (w)))
4045	return;	4342	return;
4046		4343
…		…
4059	}	4356	}
4060	#endif	4357	#endif
4061		4358
4062	#if EV_EMBED_ENABLE	4359	#if EV_EMBED_ENABLE
4063	void noinline	4360	void noinline
4064	ev_embed_sweep (EV_P_ ev_embed *w)	4361	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4065	{	4362	{
4066	ev_run (w->other, EVRUN_NOWAIT);	4363	ev_run (w->other, EVRUN_NOWAIT);
4067	}	4364	}
4068		4365
4069	static void	4366	static void
…		…
4117	ev_idle_stop (EV_A_ idle);	4414	ev_idle_stop (EV_A_ idle);
4118	}	4415	}
4119	#endif	4416	#endif
4120		4417
4121	void	4418	void
4122	ev_embed_start (EV_P_ ev_embed *w)	4419	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4123	{	4420	{
4124	if (expect_false (ev_is_active (w)))	4421	if (expect_false (ev_is_active (w)))
4125	return;	4422	return;
4126		4423
4127	{	4424	{
…		…
4148		4445
4149	EV_FREQUENT_CHECK;	4446	EV_FREQUENT_CHECK;
4150	}	4447	}
4151		4448
4152	void	4449	void
4153	ev_embed_stop (EV_P_ ev_embed *w)	4450	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4154	{	4451	{
4155	clear_pending (EV_A_ (W)w);	4452	clear_pending (EV_A_ (W)w);
4156	if (expect_false (!ev_is_active (w)))	4453	if (expect_false (!ev_is_active (w)))
4157	return;	4454	return;
4158		4455
…		…
4168	}	4465	}
4169	#endif	4466	#endif
4170		4467
4171	#if EV_FORK_ENABLE	4468	#if EV_FORK_ENABLE
4172	void	4469	void
4173	ev_fork_start (EV_P_ ev_fork *w)	4470	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4174	{	4471	{
4175	if (expect_false (ev_is_active (w)))	4472	if (expect_false (ev_is_active (w)))
4176	return;	4473	return;
4177		4474
4178	EV_FREQUENT_CHECK;	4475	EV_FREQUENT_CHECK;
…		…
4183		4480
4184	EV_FREQUENT_CHECK;	4481	EV_FREQUENT_CHECK;
4185	}	4482	}
4186		4483
4187	void	4484	void
4188	ev_fork_stop (EV_P_ ev_fork *w)	4485	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4189	{	4486	{
4190	clear_pending (EV_A_ (W)w);	4487	clear_pending (EV_A_ (W)w);
4191	if (expect_false (!ev_is_active (w)))	4488	if (expect_false (!ev_is_active (w)))
4192	return;	4489	return;
4193		4490
…		…
4206	}	4503	}
4207	#endif	4504	#endif
4208		4505
4209	#if EV_CLEANUP_ENABLE	4506	#if EV_CLEANUP_ENABLE
4210	void	4507	void
4211	ev_cleanup_start (EV_P_ ev_cleanup *w)	4508	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4212	{	4509	{
4213	if (expect_false (ev_is_active (w)))	4510	if (expect_false (ev_is_active (w)))
4214	return;	4511	return;
4215		4512
4216	EV_FREQUENT_CHECK;	4513	EV_FREQUENT_CHECK;
…		…
4223	ev_unref (EV_A);	4520	ev_unref (EV_A);
4224	EV_FREQUENT_CHECK;	4521	EV_FREQUENT_CHECK;
4225	}	4522	}
4226		4523
4227	void	4524	void
4228	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4525	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4229	{	4526	{
4230	clear_pending (EV_A_ (W)w);	4527	clear_pending (EV_A_ (W)w);
4231	if (expect_false (!ev_is_active (w)))	4528	if (expect_false (!ev_is_active (w)))
4232	return;	4529	return;
4233		4530
…		…
4247	}	4544	}
4248	#endif	4545	#endif
4249		4546
4250	#if EV_ASYNC_ENABLE	4547	#if EV_ASYNC_ENABLE
4251	void	4548	void
4252	ev_async_start (EV_P_ ev_async *w)	4549	ev_async_start (EV_P_ ev_async *w) EV_THROW
4253	{	4550	{
4254	if (expect_false (ev_is_active (w)))	4551	if (expect_false (ev_is_active (w)))
4255	return;	4552	return;
4256		4553
4257	w->sent = 0;	4554	w->sent = 0;
…		…
4266		4563
4267	EV_FREQUENT_CHECK;	4564	EV_FREQUENT_CHECK;
4268	}	4565	}
4269		4566
4270	void	4567	void
4271	ev_async_stop (EV_P_ ev_async *w)	4568	ev_async_stop (EV_P_ ev_async *w) EV_THROW
4272	{	4569	{
4273	clear_pending (EV_A_ (W)w);	4570	clear_pending (EV_A_ (W)w);
4274	if (expect_false (!ev_is_active (w)))	4571	if (expect_false (!ev_is_active (w)))
4275	return;	4572	return;
4276		4573
…		…
4287		4584
4288	EV_FREQUENT_CHECK;	4585	EV_FREQUENT_CHECK;
4289	}	4586	}
4290		4587
4291	void	4588	void
4292	ev_async_send (EV_P_ ev_async *w)	4589	ev_async_send (EV_P_ ev_async *w) EV_THROW
4293	{	4590	{
4294	w->sent = 1;	4591	w->sent = 1;
4295	evpipe_write (EV_A_ &async_pending);	4592	evpipe_write (EV_A_ &async_pending);
4296	}	4593	}
4297	#endif	4594	#endif
…		…
4334		4631
4335	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4632	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4336	}	4633	}
4337		4634
4338	void	4635	void
4339	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4636	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4340	{	4637	{
4341	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4638	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4342		4639
4343	if (expect_false (!once))	4640	if (expect_false (!once))
4344	{	4641	{
…		…
4366		4663
4367	/*****************************************************************************/	4664	/*****************************************************************************/
4368		4665
4369	#if EV_WALK_ENABLE	4666	#if EV_WALK_ENABLE
4370	void ecb_cold	4667	void ecb_cold
4371	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4668	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4372	{	4669	{
4373	int i, j;	4670	int i, j;
4374	ev_watcher_list *wl, *wn;	4671	ev_watcher_list *wl, *wn;
4375		4672
4376	if (types & (EV_IO | EV_EMBED))	4673	if (types & (EV_IO | EV_EMBED))

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