ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.418 by root, Mon Apr 2 23:14:41 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")
		614	#elif defined __alpha__
		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")
584	#endif	621	#endif
585	#endif	622	#endif
586	#endif	623	#endif
587		624
588	#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
589	#if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	639	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590	#define ECB_MEMORY_FENCE __sync_synchronize ()	640	#define ECB_MEMORY_FENCE __sync_synchronize ()
591	/*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
592	/*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
593	#elif _MSC_VER >= 1400 /* VC++ 2005 */	641	#elif _MSC_VER >= 1400 /* VC++ 2005 */
594	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	642	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	643	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596	#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 */
597	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	645	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
…		…
607	#define ECB_MEMORY_FENCE __sync ()	655	#define ECB_MEMORY_FENCE __sync ()
608	#endif	656	#endif
609	#endif	657	#endif
610		658
611	#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
612	#if !ECB_AVOID_PTHREADS	675	#if !ECB_AVOID_PTHREADS
613	/*	676	/*
614	* if you get undefined symbol references to pthread_mutex_lock,	677	* if you get undefined symbol references to pthread_mutex_lock,
615	* or failure to find pthread.h, then you should implement	678	* or failure to find pthread.h, then you should implement
616	* the ECB_MEMORY_FENCE operations for your cpu/compiler	679	* the ECB_MEMORY_FENCE operations for your cpu/compiler
…		…
634	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	697	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635	#endif	698	#endif
636		699
637	/*****************************************************************************/	700	/*****************************************************************************/
638		701
639	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
640
641	#if __cplusplus	702	#if __cplusplus
642	#define ecb_inline static inline	703	#define ecb_inline static inline
643	#elif ECB_GCC_VERSION(2,5)	704	#elif ECB_GCC_VERSION(2,5)
644	#define ecb_inline static __inline__	705	#define ecb_inline static __inline__
645	#elif ECB_C99	706	#elif ECB_C99
…		…
683	#elif ECB_GCC_VERSION(3,0)	744	#elif ECB_GCC_VERSION(3,0)
684	#define ecb_decltype(x) __typeof(x)	745	#define ecb_decltype(x) __typeof(x)
685	#endif	746	#endif
686		747
687	#define ecb_noinline ecb_attribute ((__noinline__))	748	#define ecb_noinline ecb_attribute ((__noinline__))
688	#define ecb_noreturn ecb_attribute ((__noreturn__))
689	#define ecb_unused ecb_attribute ((__unused__))	749	#define ecb_unused ecb_attribute ((__unused__))
690	#define ecb_const ecb_attribute ((__const__))	750	#define ecb_const ecb_attribute ((__const__))
691	#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
692		758
693	#if ECB_GCC_VERSION(4,3)	759	#if ECB_GCC_VERSION(4,3)
694	#define ecb_artificial ecb_attribute ((__artificial__))	760	#define ecb_artificial ecb_attribute ((__artificial__))
695	#define ecb_hot ecb_attribute ((__hot__))	761	#define ecb_hot ecb_attribute ((__hot__))
696	#define ecb_cold ecb_attribute ((__cold__))	762	#define ecb_cold ecb_attribute ((__cold__))
…		…
787		853
788	return r + ecb_ld32 (x);	854	return r + ecb_ld32 (x);
789	}	855	}
790	#endif	856	#endif
791		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
792	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	863	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
793	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	864	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
794	{	865	{
795	return ( (x * 0x0802U & 0x22110U)	866	return ( (x * 0x0802U & 0x22110U)
796	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	867	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
…		…
880	ecb_inline void ecb_unreachable (void) ecb_noreturn;	951	ecb_inline void ecb_unreachable (void) ecb_noreturn;
881	ecb_inline void ecb_unreachable (void) { }	952	ecb_inline void ecb_unreachable (void) { }
882	#endif	953	#endif
883		954
884	/* try to tell the compiler that some condition is definitely true */	955	/* try to tell the compiler that some condition is definitely true */
885	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	956	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
886		957
887	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	958	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
888	ecb_inline unsigned char	959	ecb_inline unsigned char
889	ecb_byteorder_helper (void)	960	ecb_byteorder_helper (void)
890	{	961	{
891	const uint32_t u = 0x11223344;	962	/* the union code still generates code under pressure in gcc, */
892	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
893	}	982	}
894		983
895	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	984	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
896	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; }
897	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	986	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
…		…
928	}	1017	}
929	#else	1018	#else
930	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1019	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
931	#endif	1020	#endif
932		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
933	#endif	1189	#endif
934		1190
935	/* ECB.H END */	1191	/* ECB.H END */
936		1192
937	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1193	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
…		…
1103	{	1359	{
1104	write (STDERR_FILENO, msg, strlen (msg));	1360	write (STDERR_FILENO, msg, strlen (msg));
1105	}	1361	}
1106	#endif	1362	#endif
1107		1363
1108	static void (*syserr_cb)(const char *msg);	1364	static void (*syserr_cb)(const char *msg) EV_THROW;
1109		1365
1110	void ecb_cold	1366	void ecb_cold
1111	ev_set_syserr_cb (void (*cb)(const char *msg))	1367	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1112	{	1368	{
1113	syserr_cb = cb;	1369	syserr_cb = cb;
1114	}	1370	}
1115		1371
1116	static void noinline ecb_cold	1372	static void noinline ecb_cold
…		…
1134	abort ();	1390	abort ();
1135	}	1391	}
1136	}	1392	}
1137		1393
1138	static void *	1394	static void *
1139	ev_realloc_emul (void *ptr, long size)	1395	ev_realloc_emul (void *ptr, long size) EV_THROW
1140	{	1396	{
1141	#if __GLIBC__
1142	return realloc (ptr, size);
1143	#else
1144	/* some systems, notably openbsd and darwin, fail to properly	1397	/* some systems, notably openbsd and darwin, fail to properly
1145	* 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
1146	* 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.
1147	*/	1402	*/
1148		1403
1149	if (size)	1404	if (size)
1150	return realloc (ptr, size);	1405	return realloc (ptr, size);
1151		1406
1152	free (ptr);	1407	free (ptr);
1153	return 0;	1408	return 0;
1154	#endif
1155	}	1409	}
1156		1410
1157	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1411	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1158		1412
1159	void ecb_cold	1413	void ecb_cold
1160	ev_set_allocator (void *(*cb)(void *ptr, long size))	1414	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1161	{	1415	{
1162	alloc = cb;	1416	alloc = cb;
1163	}	1417	}
1164		1418
1165	inline_speed void *	1419	inline_speed void *
…		…
1282		1536
1283	/*****************************************************************************/	1537	/*****************************************************************************/
1284		1538
1285	#ifndef EV_HAVE_EV_TIME	1539	#ifndef EV_HAVE_EV_TIME
1286	ev_tstamp	1540	ev_tstamp
1287	ev_time (void)	1541	ev_time (void) EV_THROW
1288	{	1542	{
1289	#if EV_USE_REALTIME	1543	#if EV_USE_REALTIME
1290	if (expect_true (have_realtime))	1544	if (expect_true (have_realtime))
1291	{	1545	{
1292	struct timespec ts;	1546	struct timespec ts;
…		…
1316	return ev_time ();	1570	return ev_time ();
1317	}	1571	}
1318		1572
1319	#if EV_MULTIPLICITY	1573	#if EV_MULTIPLICITY
1320	ev_tstamp	1574	ev_tstamp
1321	ev_now (EV_P)	1575	ev_now (EV_P) EV_THROW
1322	{	1576	{
1323	return ev_rt_now;	1577	return ev_rt_now;
1324	}	1578	}
1325	#endif	1579	#endif
1326		1580
1327	void	1581	void
1328	ev_sleep (ev_tstamp delay)	1582	ev_sleep (ev_tstamp delay) EV_THROW
1329	{	1583	{
1330	if (delay > 0.)	1584	if (delay > 0.)
1331	{	1585	{
1332	#if EV_USE_NANOSLEEP	1586	#if EV_USE_NANOSLEEP
1333	struct timespec ts;	1587	struct timespec ts;
…		…
1414	pendingcb (EV_P_ ev_prepare *w, int revents)	1668	pendingcb (EV_P_ ev_prepare *w, int revents)
1415	{	1669	{
1416	}	1670	}
1417		1671
1418	void noinline	1672	void noinline
1419	ev_feed_event (EV_P_ void *w, int revents)	1673	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1420	{	1674	{
1421	W w_ = (W)w;	1675	W w_ = (W)w;
1422	int pri = ABSPRI (w_);	1676	int pri = ABSPRI (w_);
1423		1677
1424	if (expect_false (w_->pending))	1678	if (expect_false (w_->pending))
…		…
1428	w_->pending = ++pendingcnt [pri];	1682	w_->pending = ++pendingcnt [pri];
1429	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1683	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1430	pendings [pri][w_->pending - 1].w = w_;	1684	pendings [pri][w_->pending - 1].w = w_;
1431	pendings [pri][w_->pending - 1].events = revents;	1685	pendings [pri][w_->pending - 1].events = revents;
1432	}	1686	}
		1687
		1688	pendingpri = NUMPRI - 1;
1433	}	1689	}
1434		1690
1435	inline_speed void	1691	inline_speed void
1436	feed_reverse (EV_P_ W w)	1692	feed_reverse (EV_P_ W w)
1437	{	1693	{
…		…
1483	if (expect_true (!anfd->reify))	1739	if (expect_true (!anfd->reify))
1484	fd_event_nocheck (EV_A_ fd, revents);	1740	fd_event_nocheck (EV_A_ fd, revents);
1485	}	1741	}
1486		1742
1487	void	1743	void
1488	ev_feed_fd_event (EV_P_ int fd, int revents)	1744	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1489	{	1745	{
1490	if (fd >= 0 && fd < anfdmax)	1746	if (fd >= 0 && fd < anfdmax)
1491	fd_event_nocheck (EV_A_ fd, revents);	1747	fd_event_nocheck (EV_A_ fd, revents);
1492	}	1748	}
1493		1749
…		…
1812	static void noinline ecb_cold	2068	static void noinline ecb_cold
1813	evpipe_init (EV_P)	2069	evpipe_init (EV_P)
1814	{	2070	{
1815	if (!ev_is_active (&pipe_w))	2071	if (!ev_is_active (&pipe_w))
1816	{	2072	{
		2073	int fds [2];
		2074
1817	# if EV_USE_EVENTFD	2075	# if EV_USE_EVENTFD
		2076	fds [0] = -1;
1818	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2077	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1819	if (evfd < 0 && errno == EINVAL)	2078	if (fds [1] < 0 && errno == EINVAL)
1820	evfd = eventfd (0, 0);	2079	fds [1] = eventfd (0, 0);
1821		2080
1822	if (evfd >= 0)	2081	if (fds [1] < 0)
		2082	# endif
1823	{	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
1824	evpipe [0] = -1;	2092	evpipe [0] = fds [0];
1825	fd_intern (evfd); /* doing it twice doesn't hurt */	2093
1826	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));
1827	}	2142	}
1828	else	2143	else
1829	# endif	2144	#endif
1830	{	2145	{
1831	while (pipe (evpipe))	2146	#ifdef _WIN32
1832	ev_syserr ("(libev) error creating signal/async pipe");	2147	WSABUF buf;
1833		2148	DWORD sent;
1834	fd_intern (evpipe [0]);	2149	buf.buf = &buf;
1835	fd_intern (evpipe [1]);	2150	buf.len = 1;
1836	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2151	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1837	}	2152	#else
1838
1839	ev_io_start (EV_A_ &pipe_w);
1840	ev_unref (EV_A); /* watcher should not keep loop alive */
1841	}
1842	}
1843
1844	inline_speed void
1845	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1846	{
1847	if (expect_true (*flag))
1848	return;
1849
1850	*flag = 1;
1851
1852	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1853
1854	pipe_write_skipped = 1;
1855
1856	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1857
1858	if (pipe_write_wanted)
1859	{
1860	int old_errno;
1861
1862	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1863
1864	old_errno = errno; /* save errno because write will clobber it */
1865
1866	#if EV_USE_EVENTFD
1867	if (evfd >= 0)
1868	{
1869	uint64_t counter = 1;
1870	write (evfd, &counter, sizeof (uint64_t));
1871	}
1872	else
1873	#endif
1874	{
1875	/* win32 people keep sending patches that change this write() to send() */
1876	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1877	/* so when you think this write should be a send instead, please find out */
1878	/* where your send() is from - it's definitely not the microsoft send, and */
1879	/* tell me. thank you. */
1880	/* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1881	/* check the ev documentation on how to use this flag */
1882	write (evpipe [1], &(evpipe [1]), 1);	2153	write (evpipe [1], &(evpipe [1]), 1);
		2154	#endif
1883	}	2155	}
1884		2156
1885	errno = old_errno;	2157	errno = old_errno;
1886	}	2158	}
1887	}	2159	}
…		…
1894	int i;	2166	int i;
1895		2167
1896	if (revents & EV_READ)	2168	if (revents & EV_READ)
1897	{	2169	{
1898	#if EV_USE_EVENTFD	2170	#if EV_USE_EVENTFD
1899	if (evfd >= 0)	2171	if (evpipe [0] < 0)
1900	{	2172	{
1901	uint64_t counter;	2173	uint64_t counter;
1902	read (evfd, &counter, sizeof (uint64_t));	2174	read (evpipe [1], &counter, sizeof (uint64_t));
1903	}	2175	}
1904	else	2176	else
1905	#endif	2177	#endif
1906	{	2178	{
1907	char dummy;	2179	char dummy[4];
1908	/* 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
1909	read (evpipe [0], &dummy, 1);	2188	read (evpipe [0], &dummy, sizeof (dummy));
		2189	#endif
1910	}	2190	}
1911	}	2191	}
1912		2192
1913	pipe_write_skipped = 0;	2193	pipe_write_skipped = 0;
		2194
		2195	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1914		2196
1915	#if EV_SIGNAL_ENABLE	2197	#if EV_SIGNAL_ENABLE
1916	if (sig_pending)	2198	if (sig_pending)
1917	{	2199	{
1918	sig_pending = 0;	2200	sig_pending = 0;
		2201
		2202	ECB_MEMORY_FENCE;
1919		2203
1920	for (i = EV_NSIG - 1; i--; )	2204	for (i = EV_NSIG - 1; i--; )
1921	if (expect_false (signals [i].pending))	2205	if (expect_false (signals [i].pending))
1922	ev_feed_signal_event (EV_A_ i + 1);	2206	ev_feed_signal_event (EV_A_ i + 1);
1923	}	2207	}
…		…
1925		2209
1926	#if EV_ASYNC_ENABLE	2210	#if EV_ASYNC_ENABLE
1927	if (async_pending)	2211	if (async_pending)
1928	{	2212	{
1929	async_pending = 0;	2213	async_pending = 0;
		2214
		2215	ECB_MEMORY_FENCE;
1930		2216
1931	for (i = asynccnt; i--; )	2217	for (i = asynccnt; i--; )
1932	if (asyncs [i]->sent)	2218	if (asyncs [i]->sent)
1933	{	2219	{
1934	asyncs [i]->sent = 0;	2220	asyncs [i]->sent = 0;
		2221	ECB_MEMORY_FENCE_RELEASE;
1935	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2222	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1936	}	2223	}
1937	}	2224	}
1938	#endif	2225	#endif
1939	}	2226	}
1940		2227
1941	/*****************************************************************************/	2228	/*****************************************************************************/
1942		2229
1943	void	2230	void
1944	ev_feed_signal (int signum)	2231	ev_feed_signal (int signum) EV_THROW
1945	{	2232	{
1946	#if EV_MULTIPLICITY	2233	#if EV_MULTIPLICITY
		2234	ECB_MEMORY_FENCE_ACQUIRE;
1947	EV_P = signals [signum - 1].loop;	2235	EV_P = signals [signum - 1].loop;
1948		2236
1949	if (!EV_A)	2237	if (!EV_A)
1950	return;	2238	return;
1951	#endif	2239	#endif
1952		2240
1953	if (!ev_active (&pipe_w))
1954	return;
1955
1956	signals [signum - 1].pending = 1;	2241	signals [signum - 1].pending = 1;
1957	evpipe_write (EV_A_ &sig_pending);	2242	evpipe_write (EV_A_ &sig_pending);
1958	}	2243	}
1959		2244
1960	static void	2245	static void
…		…
1966		2251
1967	ev_feed_signal (signum);	2252	ev_feed_signal (signum);
1968	}	2253	}
1969		2254
1970	void noinline	2255	void noinline
1971	ev_feed_signal_event (EV_P_ int signum)	2256	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1972	{	2257	{
1973	WL w;	2258	WL w;
1974		2259
1975	if (expect_false (signum <= 0 || signum > EV_NSIG))	2260	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1976	return;	2261	return;
1977		2262
1978	--signum;	2263	--signum;
1979		2264
1980	#if EV_MULTIPLICITY	2265	#if EV_MULTIPLICITY
…		…
1984	if (expect_false (signals [signum].loop != EV_A))	2269	if (expect_false (signals [signum].loop != EV_A))
1985	return;	2270	return;
1986	#endif	2271	#endif
1987		2272
1988	signals [signum].pending = 0;	2273	signals [signum].pending = 0;
		2274	ECB_MEMORY_FENCE_RELEASE;
1989		2275
1990	for (w = signals [signum].head; w; w = w->next)	2276	for (w = signals [signum].head; w; w = w->next)
1991	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2277	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1992	}	2278	}
1993		2279
…		…
2092	#if EV_USE_SELECT	2378	#if EV_USE_SELECT
2093	# include "ev_select.c"	2379	# include "ev_select.c"
2094	#endif	2380	#endif
2095		2381
2096	int ecb_cold	2382	int ecb_cold
2097	ev_version_major (void)	2383	ev_version_major (void) EV_THROW
2098	{	2384	{
2099	return EV_VERSION_MAJOR;	2385	return EV_VERSION_MAJOR;
2100	}	2386	}
2101		2387
2102	int ecb_cold	2388	int ecb_cold
2103	ev_version_minor (void)	2389	ev_version_minor (void) EV_THROW
2104	{	2390	{
2105	return EV_VERSION_MINOR;	2391	return EV_VERSION_MINOR;
2106	}	2392	}
2107		2393
2108	/* 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 */
…		…
2116	|| getgid () != getegid ();	2402	|| getgid () != getegid ();
2117	#endif	2403	#endif
2118	}	2404	}
2119		2405
2120	unsigned int ecb_cold	2406	unsigned int ecb_cold
2121	ev_supported_backends (void)	2407	ev_supported_backends (void) EV_THROW
2122	{	2408	{
2123	unsigned int flags = 0;	2409	unsigned int flags = 0;
2124		2410
2125	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2411	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2126	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2412	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2130		2416
2131	return flags;	2417	return flags;
2132	}	2418	}
2133		2419
2134	unsigned int ecb_cold	2420	unsigned int ecb_cold
2135	ev_recommended_backends (void)	2421	ev_recommended_backends (void) EV_THROW
2136	{	2422	{
2137	unsigned int flags = ev_supported_backends ();	2423	unsigned int flags = ev_supported_backends ();
2138		2424
2139	#ifndef __NetBSD__	2425	#ifndef __NetBSD__
2140	/* kqueue is borked on everything but netbsd apparently */	2426	/* kqueue is borked on everything but netbsd apparently */
…		…
2152		2438
2153	return flags;	2439	return flags;
2154	}	2440	}
2155		2441
2156	unsigned int ecb_cold	2442	unsigned int ecb_cold
2157	ev_embeddable_backends (void)	2443	ev_embeddable_backends (void) EV_THROW
2158	{	2444	{
2159	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2445	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2160		2446
2161	/* 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 */
2162	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 */
…		…
2164		2450
2165	return flags;	2451	return flags;
2166	}	2452	}
2167		2453
2168	unsigned int	2454	unsigned int
2169	ev_backend (EV_P)	2455	ev_backend (EV_P) EV_THROW
2170	{	2456	{
2171	return backend;	2457	return backend;
2172	}	2458	}
2173		2459
2174	#if EV_FEATURE_API	2460	#if EV_FEATURE_API
2175	unsigned int	2461	unsigned int
2176	ev_iteration (EV_P)	2462	ev_iteration (EV_P) EV_THROW
2177	{	2463	{
2178	return loop_count;	2464	return loop_count;
2179	}	2465	}
2180		2466
2181	unsigned int	2467	unsigned int
2182	ev_depth (EV_P)	2468	ev_depth (EV_P) EV_THROW
2183	{	2469	{
2184	return loop_depth;	2470	return loop_depth;
2185	}	2471	}
2186		2472
2187	void	2473	void
2188	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2474	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189	{	2475	{
2190	io_blocktime = interval;	2476	io_blocktime = interval;
2191	}	2477	}
2192		2478
2193	void	2479	void
2194	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2480	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2195	{	2481	{
2196	timeout_blocktime = interval;	2482	timeout_blocktime = interval;
2197	}	2483	}
2198		2484
2199	void	2485	void
2200	ev_set_userdata (EV_P_ void *data)	2486	ev_set_userdata (EV_P_ void *data) EV_THROW
2201	{	2487	{
2202	userdata = data;	2488	userdata = data;
2203	}	2489	}
2204		2490
2205	void *	2491	void *
2206	ev_userdata (EV_P)	2492	ev_userdata (EV_P) EV_THROW
2207	{	2493	{
2208	return userdata;	2494	return userdata;
2209	}	2495	}
2210		2496
2211	void	2497	void
2212	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
2213	{	2499	{
2214	invoke_cb = invoke_pending_cb;	2500	invoke_cb = invoke_pending_cb;
2215	}	2501	}
2216		2502
2217	void	2503	void
2218	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
2219	{	2505	{
2220	release_cb = release;	2506	release_cb = release;
2221	acquire_cb = acquire;	2507	acquire_cb = acquire;
2222	}	2508	}
2223	#endif	2509	#endif
2224		2510
2225	/* initialise a loop structure, must be zero-initialised */	2511	/* initialise a loop structure, must be zero-initialised */
2226	static void noinline ecb_cold	2512	static void noinline ecb_cold
2227	loop_init (EV_P_ unsigned int flags)	2513	loop_init (EV_P_ unsigned int flags) EV_THROW
2228	{	2514	{
2229	if (!backend)	2515	if (!backend)
2230	{	2516	{
2231	origflags = flags;	2517	origflags = flags;
2232		2518
…		…
2277	#if EV_ASYNC_ENABLE	2563	#if EV_ASYNC_ENABLE
2278	async_pending = 0;	2564	async_pending = 0;
2279	#endif	2565	#endif
2280	pipe_write_skipped = 0;	2566	pipe_write_skipped = 0;
2281	pipe_write_wanted = 0;	2567	pipe_write_wanted = 0;
		2568	evpipe [0] = -1;
		2569	evpipe [1] = -1;
2282	#if EV_USE_INOTIFY	2570	#if EV_USE_INOTIFY
2283	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2571	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2284	#endif	2572	#endif
2285	#if EV_USE_SIGNALFD	2573	#if EV_USE_SIGNALFD
2286	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2574	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2337	EV_INVOKE_PENDING;	2625	EV_INVOKE_PENDING;
2338	}	2626	}
2339	#endif	2627	#endif
2340		2628
2341	#if EV_CHILD_ENABLE	2629	#if EV_CHILD_ENABLE
2342	if (ev_is_active (&childev))	2630	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2343	{	2631	{
2344	ev_ref (EV_A); /* child watcher */	2632	ev_ref (EV_A); /* child watcher */
2345	ev_signal_stop (EV_A_ &childev);	2633	ev_signal_stop (EV_A_ &childev);
2346	}	2634	}
2347	#endif	2635	#endif
…		…
2349	if (ev_is_active (&pipe_w))	2637	if (ev_is_active (&pipe_w))
2350	{	2638	{
2351	/*ev_ref (EV_A);*/	2639	/*ev_ref (EV_A);*/
2352	/*ev_io_stop (EV_A_ &pipe_w);*/	2640	/*ev_io_stop (EV_A_ &pipe_w);*/
2353		2641
2354	#if EV_USE_EVENTFD
2355	if (evfd >= 0)
2356	close (evfd);
2357	#endif
2358
2359	if (evpipe [0] >= 0)
2360	{
2361	EV_WIN32_CLOSE_FD (evpipe [0]);	2642	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2362	EV_WIN32_CLOSE_FD (evpipe [1]);	2643	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2363	}
2364	}	2644	}
2365		2645
2366	#if EV_USE_SIGNALFD	2646	#if EV_USE_SIGNALFD
2367	if (ev_is_active (&sigfd_w))	2647	if (ev_is_active (&sigfd_w))
2368	close (sigfd);	2648	close (sigfd);
…		…
2454	#endif	2734	#endif
2455	#if EV_USE_INOTIFY	2735	#if EV_USE_INOTIFY
2456	infy_fork (EV_A);	2736	infy_fork (EV_A);
2457	#endif	2737	#endif
2458		2738
		2739	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2459	if (ev_is_active (&pipe_w))	2740	if (ev_is_active (&pipe_w))
2460	{	2741	{
2461	/* 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 */
2462		2743
2463	ev_ref (EV_A);	2744	ev_ref (EV_A);
2464	ev_io_stop (EV_A_ &pipe_w);	2745	ev_io_stop (EV_A_ &pipe_w);
2465		2746
2466	#if EV_USE_EVENTFD
2467	if (evfd >= 0)
2468	close (evfd);
2469	#endif
2470
2471	if (evpipe [0] >= 0)	2747	if (evpipe [0] >= 0)
2472	{
2473	EV_WIN32_CLOSE_FD (evpipe [0]);	2748	EV_WIN32_CLOSE_FD (evpipe [0]);
2474	EV_WIN32_CLOSE_FD (evpipe [1]);
2475	}
2476		2749
2477	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2478	evpipe_init (EV_A);	2750	evpipe_init (EV_A);
2479	/* now iterate over everything, in case we missed something */	2751	/* iterate over everything, in case we missed something before */
2480	pipecb (EV_A_ &pipe_w, EV_READ);	2752	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2481	#endif
2482	}	2753	}
		2754	#endif
2483		2755
2484	postfork = 0;	2756	postfork = 0;
2485	}	2757	}
2486		2758
2487	#if EV_MULTIPLICITY	2759	#if EV_MULTIPLICITY
2488		2760
2489	struct ev_loop * ecb_cold	2761	struct ev_loop * ecb_cold
2490	ev_loop_new (unsigned int flags)	2762	ev_loop_new (unsigned int flags) EV_THROW
2491	{	2763	{
2492	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2764	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2493		2765
2494	memset (EV_A, 0, sizeof (struct ev_loop));	2766	memset (EV_A, 0, sizeof (struct ev_loop));
2495	loop_init (EV_A_ flags);	2767	loop_init (EV_A_ flags);
…		…
2539	}	2811	}
2540	#endif	2812	#endif
2541		2813
2542	#if EV_FEATURE_API	2814	#if EV_FEATURE_API
2543	void ecb_cold	2815	void ecb_cold
2544	ev_verify (EV_P)	2816	ev_verify (EV_P) EV_THROW
2545	{	2817	{
2546	#if EV_VERIFY	2818	#if EV_VERIFY
2547	int i;	2819	int i;
2548	WL w;	2820	WL w, w2;
2549		2821
2550	assert (activecnt >= -1);	2822	assert (activecnt >= -1);
2551		2823
2552	assert (fdchangemax >= fdchangecnt);	2824	assert (fdchangemax >= fdchangecnt);
2553	for (i = 0; i < fdchangecnt; ++i)	2825	for (i = 0; i < fdchangecnt; ++i)
2554	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2826	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2555		2827
2556	assert (anfdmax >= 0);	2828	assert (anfdmax >= 0);
2557	for (i = 0; i < anfdmax; ++i)	2829	for (i = 0; i < anfdmax; ++i)
		2830	{
		2831	int j = 0;
		2832
2558	for (w = anfds [i].head; w; w = w->next)	2833	for (w = w2 = anfds [i].head; w; w = w->next)
2559	{	2834	{
2560	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
2561	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));
2562	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));
2563	}	2845	}
		2846	}
2564		2847
2565	assert (timermax >= timercnt);	2848	assert (timermax >= timercnt);
2566	verify_heap (EV_A_ timers, timercnt);	2849	verify_heap (EV_A_ timers, timercnt);
2567		2850
2568	#if EV_PERIODIC_ENABLE	2851	#if EV_PERIODIC_ENABLE
…		…
2618	#if EV_MULTIPLICITY	2901	#if EV_MULTIPLICITY
2619	struct ev_loop * ecb_cold	2902	struct ev_loop * ecb_cold
2620	#else	2903	#else
2621	int	2904	int
2622	#endif	2905	#endif
2623	ev_default_loop (unsigned int flags)	2906	ev_default_loop (unsigned int flags) EV_THROW
2624	{	2907	{
2625	if (!ev_default_loop_ptr)	2908	if (!ev_default_loop_ptr)
2626	{	2909	{
2627	#if EV_MULTIPLICITY	2910	#if EV_MULTIPLICITY
2628	EV_P = ev_default_loop_ptr = &default_loop_struct;	2911	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2647		2930
2648	return ev_default_loop_ptr;	2931	return ev_default_loop_ptr;
2649	}	2932	}
2650		2933
2651	void	2934	void
2652	ev_loop_fork (EV_P)	2935	ev_loop_fork (EV_P) EV_THROW
2653	{	2936	{
2654	postfork = 1; /* must be in line with ev_default_fork */	2937	postfork = 1;
2655	}	2938	}
2656		2939
2657	/*****************************************************************************/	2940	/*****************************************************************************/
2658		2941
2659	void	2942	void
…		…
2661	{	2944	{
2662	EV_CB_INVOKE ((W)w, revents);	2945	EV_CB_INVOKE ((W)w, revents);
2663	}	2946	}
2664		2947
2665	unsigned int	2948	unsigned int
2666	ev_pending_count (EV_P)	2949	ev_pending_count (EV_P) EV_THROW
2667	{	2950	{
2668	int pri;	2951	int pri;
2669	unsigned int count = 0;	2952	unsigned int count = 0;
2670		2953
2671	for (pri = NUMPRI; pri--; )	2954	for (pri = NUMPRI; pri--; )
…		…
2675	}	2958	}
2676		2959
2677	void noinline	2960	void noinline
2678	ev_invoke_pending (EV_P)	2961	ev_invoke_pending (EV_P)
2679	{	2962	{
2680	int pri;	2963	pendingpri = NUMPRI;
2681		2964
2682	for (pri = NUMPRI; pri--; )	2965	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2966	{
		2967	--pendingpri;
		2968
2683	while (pendingcnt [pri])	2969	while (pendingcnt [pendingpri])
2684	{	2970	{
2685	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2971	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2686		2972
2687	p->w->pending = 0;	2973	p->w->pending = 0;
2688	EV_CB_INVOKE (p->w, p->events);	2974	EV_CB_INVOKE (p->w, p->events);
2689	EV_FREQUENT_CHECK;	2975	EV_FREQUENT_CHECK;
2690	}	2976	}
		2977	}
2691	}	2978	}
2692		2979
2693	#if EV_IDLE_ENABLE	2980	#if EV_IDLE_ENABLE
2694	/* make idle watchers pending. this handles the "call-idle */	2981	/* make idle watchers pending. this handles the "call-idle */
2695	/* only when higher priorities are idle" logic */	2982	/* only when higher priorities are idle" logic */
…		…
2785	{	3072	{
2786	EV_FREQUENT_CHECK;	3073	EV_FREQUENT_CHECK;
2787		3074
2788	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3075	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2789	{	3076	{
2790	int feed_count = 0;
2791
2792	do	3077	do
2793	{	3078	{
2794	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3079	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2795		3080
2796	/*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)));*/
…		…
3055	backend_poll (EV_A_ waittime);	3340	backend_poll (EV_A_ waittime);
3056	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3341	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057		3342
3058	pipe_write_wanted = 0; /* just an optimisation, no fence needed */	3343	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059		3344
		3345	ECB_MEMORY_FENCE_ACQUIRE;
3060	if (pipe_write_skipped)	3346	if (pipe_write_skipped)
3061	{	3347	{
3062	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)));
3063	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3349	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064	}	3350	}
…		…
3102		3388
3103	return activecnt;	3389	return activecnt;
3104	}	3390	}
3105		3391
3106	void	3392	void
3107	ev_break (EV_P_ int how)	3393	ev_break (EV_P_ int how) EV_THROW
3108	{	3394	{
3109	loop_done = how;	3395	loop_done = how;
3110	}	3396	}
3111		3397
3112	void	3398	void
3113	ev_ref (EV_P)	3399	ev_ref (EV_P) EV_THROW
3114	{	3400	{
3115	++activecnt;	3401	++activecnt;
3116	}	3402	}
3117		3403
3118	void	3404	void
3119	ev_unref (EV_P)	3405	ev_unref (EV_P) EV_THROW
3120	{	3406	{
3121	--activecnt;	3407	--activecnt;
3122	}	3408	}
3123		3409
3124	void	3410	void
3125	ev_now_update (EV_P)	3411	ev_now_update (EV_P) EV_THROW
3126	{	3412	{
3127	time_update (EV_A_ 1e100);	3413	time_update (EV_A_ 1e100);
3128	}	3414	}
3129		3415
3130	void	3416	void
3131	ev_suspend (EV_P)	3417	ev_suspend (EV_P) EV_THROW
3132	{	3418	{
3133	ev_now_update (EV_A);	3419	ev_now_update (EV_A);
3134	}	3420	}
3135		3421
3136	void	3422	void
3137	ev_resume (EV_P)	3423	ev_resume (EV_P) EV_THROW
3138	{	3424	{
3139	ev_tstamp mn_prev = mn_now;	3425	ev_tstamp mn_prev = mn_now;
3140		3426
3141	ev_now_update (EV_A);	3427	ev_now_update (EV_A);
3142	timers_reschedule (EV_A_ mn_now - mn_prev);	3428	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3181	w->pending = 0;	3467	w->pending = 0;
3182	}	3468	}
3183	}	3469	}
3184		3470
3185	int	3471	int
3186	ev_clear_pending (EV_P_ void *w)	3472	ev_clear_pending (EV_P_ void *w) EV_THROW
3187	{	3473	{
3188	W w_ = (W)w;	3474	W w_ = (W)w;
3189	int pending = w_->pending;	3475	int pending = w_->pending;
3190		3476
3191	if (expect_true (pending))	3477	if (expect_true (pending))
…		…
3224	}	3510	}
3225		3511
3226	/*****************************************************************************/	3512	/*****************************************************************************/
3227		3513
3228	void noinline	3514	void noinline
3229	ev_io_start (EV_P_ ev_io *w)	3515	ev_io_start (EV_P_ ev_io *w) EV_THROW
3230	{	3516	{
3231	int fd = w->fd;	3517	int fd = w->fd;
3232		3518
3233	if (expect_false (ev_is_active (w)))	3519	if (expect_false (ev_is_active (w)))
3234	return;	3520	return;
…		…
3240		3526
3241	ev_start (EV_A_ (W)w, 1);	3527	ev_start (EV_A_ (W)w, 1);
3242	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3528	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3243	wlist_add (&anfds[fd].head, (WL)w);	3529	wlist_add (&anfds[fd].head, (WL)w);
3244		3530
		3531	/* common bug, apparently */
		3532	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3533
3245	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);
3246	w->events &= ~EV__IOFDSET;	3535	w->events &= ~EV__IOFDSET;
3247		3536
3248	EV_FREQUENT_CHECK;	3537	EV_FREQUENT_CHECK;
3249	}	3538	}
3250		3539
3251	void noinline	3540	void noinline
3252	ev_io_stop (EV_P_ ev_io *w)	3541	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3253	{	3542	{
3254	clear_pending (EV_A_ (W)w);	3543	clear_pending (EV_A_ (W)w);
3255	if (expect_false (!ev_is_active (w)))	3544	if (expect_false (!ev_is_active (w)))
3256	return;	3545	return;
3257		3546
…		…
3266		3555
3267	EV_FREQUENT_CHECK;	3556	EV_FREQUENT_CHECK;
3268	}	3557	}
3269		3558
3270	void noinline	3559	void noinline
3271	ev_timer_start (EV_P_ ev_timer *w)	3560	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3272	{	3561	{
3273	if (expect_false (ev_is_active (w)))	3562	if (expect_false (ev_is_active (w)))
3274	return;	3563	return;
3275		3564
3276	ev_at (w) += mn_now;	3565	ev_at (w) += mn_now;
…		…
3290		3579
3291	/*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));*/
3292	}	3581	}
3293		3582
3294	void noinline	3583	void noinline
3295	ev_timer_stop (EV_P_ ev_timer *w)	3584	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3296	{	3585	{
3297	clear_pending (EV_A_ (W)w);	3586	clear_pending (EV_A_ (W)w);
3298	if (expect_false (!ev_is_active (w)))	3587	if (expect_false (!ev_is_active (w)))
3299	return;	3588	return;
3300		3589
…		…
3320		3609
3321	EV_FREQUENT_CHECK;	3610	EV_FREQUENT_CHECK;
3322	}	3611	}
3323		3612
3324	void noinline	3613	void noinline
3325	ev_timer_again (EV_P_ ev_timer *w)	3614	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3326	{	3615	{
3327	EV_FREQUENT_CHECK;	3616	EV_FREQUENT_CHECK;
3328		3617
3329	clear_pending (EV_A_ (W)w);	3618	clear_pending (EV_A_ (W)w);
3330		3619
…		…
3347		3636
3348	EV_FREQUENT_CHECK;	3637	EV_FREQUENT_CHECK;
3349	}	3638	}
3350		3639
3351	ev_tstamp	3640	ev_tstamp
3352	ev_timer_remaining (EV_P_ ev_timer *w)	3641	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3353	{	3642	{
3354	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3643	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3355	}	3644	}
3356		3645
3357	#if EV_PERIODIC_ENABLE	3646	#if EV_PERIODIC_ENABLE
3358	void noinline	3647	void noinline
3359	ev_periodic_start (EV_P_ ev_periodic *w)	3648	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3360	{	3649	{
3361	if (expect_false (ev_is_active (w)))	3650	if (expect_false (ev_is_active (w)))
3362	return;	3651	return;
3363		3652
3364	if (w->reschedule_cb)	3653	if (w->reschedule_cb)
…		…
3384		3673
3385	/*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));*/
3386	}	3675	}
3387		3676
3388	void noinline	3677	void noinline
3389	ev_periodic_stop (EV_P_ ev_periodic *w)	3678	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3390	{	3679	{
3391	clear_pending (EV_A_ (W)w);	3680	clear_pending (EV_A_ (W)w);
3392	if (expect_false (!ev_is_active (w)))	3681	if (expect_false (!ev_is_active (w)))
3393	return;	3682	return;
3394		3683
…		…
3412		3701
3413	EV_FREQUENT_CHECK;	3702	EV_FREQUENT_CHECK;
3414	}	3703	}
3415		3704
3416	void noinline	3705	void noinline
3417	ev_periodic_again (EV_P_ ev_periodic *w)	3706	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3418	{	3707	{
3419	/* TODO: use adjustheap and recalculation */	3708	/* TODO: use adjustheap and recalculation */
3420	ev_periodic_stop (EV_A_ w);	3709	ev_periodic_stop (EV_A_ w);
3421	ev_periodic_start (EV_A_ w);	3710	ev_periodic_start (EV_A_ w);
3422	}	3711	}
…		…
3427	#endif	3716	#endif
3428		3717
3429	#if EV_SIGNAL_ENABLE	3718	#if EV_SIGNAL_ENABLE
3430		3719
3431	void noinline	3720	void noinline
3432	ev_signal_start (EV_P_ ev_signal *w)	3721	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3433	{	3722	{
3434	if (expect_false (ev_is_active (w)))	3723	if (expect_false (ev_is_active (w)))
3435	return;	3724	return;
3436		3725
3437	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));
…		…
3439	#if EV_MULTIPLICITY	3728	#if EV_MULTIPLICITY
3440	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",
3441	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3730	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3442		3731
3443	signals [w->signum - 1].loop = EV_A;	3732	signals [w->signum - 1].loop = EV_A;
		3733	ECB_MEMORY_FENCE_RELEASE;
3444	#endif	3734	#endif
3445		3735
3446	EV_FREQUENT_CHECK;	3736	EV_FREQUENT_CHECK;
3447		3737
3448	#if EV_USE_SIGNALFD	3738	#if EV_USE_SIGNALFD
…		…
3508		3798
3509	EV_FREQUENT_CHECK;	3799	EV_FREQUENT_CHECK;
3510	}	3800	}
3511		3801
3512	void noinline	3802	void noinline
3513	ev_signal_stop (EV_P_ ev_signal *w)	3803	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3514	{	3804	{
3515	clear_pending (EV_A_ (W)w);	3805	clear_pending (EV_A_ (W)w);
3516	if (expect_false (!ev_is_active (w)))	3806	if (expect_false (!ev_is_active (w)))
3517	return;	3807	return;
3518		3808
…		…
3549	#endif	3839	#endif
3550		3840
3551	#if EV_CHILD_ENABLE	3841	#if EV_CHILD_ENABLE
3552		3842
3553	void	3843	void
3554	ev_child_start (EV_P_ ev_child *w)	3844	ev_child_start (EV_P_ ev_child *w) EV_THROW
3555	{	3845	{
3556	#if EV_MULTIPLICITY	3846	#if EV_MULTIPLICITY
3557	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));
3558	#endif	3848	#endif
3559	if (expect_false (ev_is_active (w)))	3849	if (expect_false (ev_is_active (w)))
…		…
3566		3856
3567	EV_FREQUENT_CHECK;	3857	EV_FREQUENT_CHECK;
3568	}	3858	}
3569		3859
3570	void	3860	void
3571	ev_child_stop (EV_P_ ev_child *w)	3861	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3572	{	3862	{
3573	clear_pending (EV_A_ (W)w);	3863	clear_pending (EV_A_ (W)w);
3574	if (expect_false (!ev_is_active (w)))	3864	if (expect_false (!ev_is_active (w)))
3575	return;	3865	return;
3576		3866
…		…
3603	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3893	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3604		3894
3605	static void noinline	3895	static void noinline
3606	infy_add (EV_P_ ev_stat *w)	3896	infy_add (EV_P_ ev_stat *w)
3607	{	3897	{
3608	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);
3609		3902
3610	if (w->wd >= 0)	3903	if (w->wd >= 0)
3611	{	3904	{
3612	struct statfs sfs;	3905	struct statfs sfs;
3613		3906
…		…
3617		3910
3618	if (!fs_2625)	3911	if (!fs_2625)
3619	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3912	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3620	else if (!statfs (w->path, &sfs)	3913	else if (!statfs (w->path, &sfs)
3621	&& (sfs.f_type == 0x1373 /* devfs */	3914	&& (sfs.f_type == 0x1373 /* devfs */
		3915	|| sfs.f_type == 0x4006 /* fat */
		3916	|| sfs.f_type == 0x4d44 /* msdos */
3622	|| 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 */
3623	|| sfs.f_type == 0x3153464a /* jfs */	3921	|| sfs.f_type == 0x3153464a /* jfs */
		3922	|| sfs.f_type == 0x9123683e /* btrfs */
3624	|| sfs.f_type == 0x52654973 /* reiser3 */	3923	|| sfs.f_type == 0x52654973 /* reiser3 */
3625	|| sfs.f_type == 0x01021994 /* tempfs */	3924	|| sfs.f_type == 0x01021994 /* tmpfs */
3626	|| sfs.f_type == 0x58465342 /* xfs */))	3925	|| sfs.f_type == 0x58465342 /* xfs */))
3627	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	3926	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3628	else	3927	else
3629	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 */
3630	}	3929	}
…		…
3828	#else	4127	#else
3829	# define EV_LSTAT(p,b) lstat (p, b)	4128	# define EV_LSTAT(p,b) lstat (p, b)
3830	#endif	4129	#endif
3831		4130
3832	void	4131	void
3833	ev_stat_stat (EV_P_ ev_stat *w)	4132	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3834	{	4133	{
3835	if (lstat (w->path, &w->attr) < 0)	4134	if (lstat (w->path, &w->attr) < 0)
3836	w->attr.st_nlink = 0;	4135	w->attr.st_nlink = 0;
3837	else if (!w->attr.st_nlink)	4136	else if (!w->attr.st_nlink)
3838	w->attr.st_nlink = 1;	4137	w->attr.st_nlink = 1;
…		…
3877	ev_feed_event (EV_A_ w, EV_STAT);	4176	ev_feed_event (EV_A_ w, EV_STAT);
3878	}	4177	}
3879	}	4178	}
3880		4179
3881	void	4180	void
3882	ev_stat_start (EV_P_ ev_stat *w)	4181	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3883	{	4182	{
3884	if (expect_false (ev_is_active (w)))	4183	if (expect_false (ev_is_active (w)))
3885	return;	4184	return;
3886		4185
3887	ev_stat_stat (EV_A_ w);	4186	ev_stat_stat (EV_A_ w);
…		…
3908		4207
3909	EV_FREQUENT_CHECK;	4208	EV_FREQUENT_CHECK;
3910	}	4209	}
3911		4210
3912	void	4211	void
3913	ev_stat_stop (EV_P_ ev_stat *w)	4212	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3914	{	4213	{
3915	clear_pending (EV_A_ (W)w);	4214	clear_pending (EV_A_ (W)w);
3916	if (expect_false (!ev_is_active (w)))	4215	if (expect_false (!ev_is_active (w)))
3917	return;	4216	return;
3918		4217
…		…
3934	}	4233	}
3935	#endif	4234	#endif
3936		4235
3937	#if EV_IDLE_ENABLE	4236	#if EV_IDLE_ENABLE
3938	void	4237	void
3939	ev_idle_start (EV_P_ ev_idle *w)	4238	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3940	{	4239	{
3941	if (expect_false (ev_is_active (w)))	4240	if (expect_false (ev_is_active (w)))
3942	return;	4241	return;
3943		4242
3944	pri_adjust (EV_A_ (W)w);	4243	pri_adjust (EV_A_ (W)w);
…		…
3957		4256
3958	EV_FREQUENT_CHECK;	4257	EV_FREQUENT_CHECK;
3959	}	4258	}
3960		4259
3961	void	4260	void
3962	ev_idle_stop (EV_P_ ev_idle *w)	4261	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3963	{	4262	{
3964	clear_pending (EV_A_ (W)w);	4263	clear_pending (EV_A_ (W)w);
3965	if (expect_false (!ev_is_active (w)))	4264	if (expect_false (!ev_is_active (w)))
3966	return;	4265	return;
3967		4266
…		…
3981	}	4280	}
3982	#endif	4281	#endif
3983		4282
3984	#if EV_PREPARE_ENABLE	4283	#if EV_PREPARE_ENABLE
3985	void	4284	void
3986	ev_prepare_start (EV_P_ ev_prepare *w)	4285	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3987	{	4286	{
3988	if (expect_false (ev_is_active (w)))	4287	if (expect_false (ev_is_active (w)))
3989	return;	4288	return;
3990		4289
3991	EV_FREQUENT_CHECK;	4290	EV_FREQUENT_CHECK;
…		…
3996		4295
3997	EV_FREQUENT_CHECK;	4296	EV_FREQUENT_CHECK;
3998	}	4297	}
3999		4298
4000	void	4299	void
4001	ev_prepare_stop (EV_P_ ev_prepare *w)	4300	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4002	{	4301	{
4003	clear_pending (EV_A_ (W)w);	4302	clear_pending (EV_A_ (W)w);
4004	if (expect_false (!ev_is_active (w)))	4303	if (expect_false (!ev_is_active (w)))
4005	return;	4304	return;
4006		4305
…		…
4019	}	4318	}
4020	#endif	4319	#endif
4021		4320
4022	#if EV_CHECK_ENABLE	4321	#if EV_CHECK_ENABLE
4023	void	4322	void
4024	ev_check_start (EV_P_ ev_check *w)	4323	ev_check_start (EV_P_ ev_check *w) EV_THROW
4025	{	4324	{
4026	if (expect_false (ev_is_active (w)))	4325	if (expect_false (ev_is_active (w)))
4027	return;	4326	return;
4028		4327
4029	EV_FREQUENT_CHECK;	4328	EV_FREQUENT_CHECK;
…		…
4034		4333
4035	EV_FREQUENT_CHECK;	4334	EV_FREQUENT_CHECK;
4036	}	4335	}
4037		4336
4038	void	4337	void
4039	ev_check_stop (EV_P_ ev_check *w)	4338	ev_check_stop (EV_P_ ev_check *w) EV_THROW
4040	{	4339	{
4041	clear_pending (EV_A_ (W)w);	4340	clear_pending (EV_A_ (W)w);
4042	if (expect_false (!ev_is_active (w)))	4341	if (expect_false (!ev_is_active (w)))
4043	return;	4342	return;
4044		4343
…		…
4057	}	4356	}
4058	#endif	4357	#endif
4059		4358
4060	#if EV_EMBED_ENABLE	4359	#if EV_EMBED_ENABLE
4061	void noinline	4360	void noinline
4062	ev_embed_sweep (EV_P_ ev_embed *w)	4361	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4063	{	4362	{
4064	ev_run (w->other, EVRUN_NOWAIT);	4363	ev_run (w->other, EVRUN_NOWAIT);
4065	}	4364	}
4066		4365
4067	static void	4366	static void
…		…
4115	ev_idle_stop (EV_A_ idle);	4414	ev_idle_stop (EV_A_ idle);
4116	}	4415	}
4117	#endif	4416	#endif
4118		4417
4119	void	4418	void
4120	ev_embed_start (EV_P_ ev_embed *w)	4419	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4121	{	4420	{
4122	if (expect_false (ev_is_active (w)))	4421	if (expect_false (ev_is_active (w)))
4123	return;	4422	return;
4124		4423
4125	{	4424	{
…		…
4146		4445
4147	EV_FREQUENT_CHECK;	4446	EV_FREQUENT_CHECK;
4148	}	4447	}
4149		4448
4150	void	4449	void
4151	ev_embed_stop (EV_P_ ev_embed *w)	4450	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4152	{	4451	{
4153	clear_pending (EV_A_ (W)w);	4452	clear_pending (EV_A_ (W)w);
4154	if (expect_false (!ev_is_active (w)))	4453	if (expect_false (!ev_is_active (w)))
4155	return;	4454	return;
4156		4455
…		…
4166	}	4465	}
4167	#endif	4466	#endif
4168		4467
4169	#if EV_FORK_ENABLE	4468	#if EV_FORK_ENABLE
4170	void	4469	void
4171	ev_fork_start (EV_P_ ev_fork *w)	4470	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4172	{	4471	{
4173	if (expect_false (ev_is_active (w)))	4472	if (expect_false (ev_is_active (w)))
4174	return;	4473	return;
4175		4474
4176	EV_FREQUENT_CHECK;	4475	EV_FREQUENT_CHECK;
…		…
4181		4480
4182	EV_FREQUENT_CHECK;	4481	EV_FREQUENT_CHECK;
4183	}	4482	}
4184		4483
4185	void	4484	void
4186	ev_fork_stop (EV_P_ ev_fork *w)	4485	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4187	{	4486	{
4188	clear_pending (EV_A_ (W)w);	4487	clear_pending (EV_A_ (W)w);
4189	if (expect_false (!ev_is_active (w)))	4488	if (expect_false (!ev_is_active (w)))
4190	return;	4489	return;
4191		4490
…		…
4204	}	4503	}
4205	#endif	4504	#endif
4206		4505
4207	#if EV_CLEANUP_ENABLE	4506	#if EV_CLEANUP_ENABLE
4208	void	4507	void
4209	ev_cleanup_start (EV_P_ ev_cleanup *w)	4508	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4210	{	4509	{
4211	if (expect_false (ev_is_active (w)))	4510	if (expect_false (ev_is_active (w)))
4212	return;	4511	return;
4213		4512
4214	EV_FREQUENT_CHECK;	4513	EV_FREQUENT_CHECK;
…		…
4221	ev_unref (EV_A);	4520	ev_unref (EV_A);
4222	EV_FREQUENT_CHECK;	4521	EV_FREQUENT_CHECK;
4223	}	4522	}
4224		4523
4225	void	4524	void
4226	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4525	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4227	{	4526	{
4228	clear_pending (EV_A_ (W)w);	4527	clear_pending (EV_A_ (W)w);
4229	if (expect_false (!ev_is_active (w)))	4528	if (expect_false (!ev_is_active (w)))
4230	return;	4529	return;
4231		4530
…		…
4245	}	4544	}
4246	#endif	4545	#endif
4247		4546
4248	#if EV_ASYNC_ENABLE	4547	#if EV_ASYNC_ENABLE
4249	void	4548	void
4250	ev_async_start (EV_P_ ev_async *w)	4549	ev_async_start (EV_P_ ev_async *w) EV_THROW
4251	{	4550	{
4252	if (expect_false (ev_is_active (w)))	4551	if (expect_false (ev_is_active (w)))
4253	return;	4552	return;
4254		4553
4255	w->sent = 0;	4554	w->sent = 0;
…		…
4264		4563
4265	EV_FREQUENT_CHECK;	4564	EV_FREQUENT_CHECK;
4266	}	4565	}
4267		4566
4268	void	4567	void
4269	ev_async_stop (EV_P_ ev_async *w)	4568	ev_async_stop (EV_P_ ev_async *w) EV_THROW
4270	{	4569	{
4271	clear_pending (EV_A_ (W)w);	4570	clear_pending (EV_A_ (W)w);
4272	if (expect_false (!ev_is_active (w)))	4571	if (expect_false (!ev_is_active (w)))
4273	return;	4572	return;
4274		4573
…		…
4285		4584
4286	EV_FREQUENT_CHECK;	4585	EV_FREQUENT_CHECK;
4287	}	4586	}
4288		4587
4289	void	4588	void
4290	ev_async_send (EV_P_ ev_async *w)	4589	ev_async_send (EV_P_ ev_async *w) EV_THROW
4291	{	4590	{
4292	w->sent = 1;	4591	w->sent = 1;
4293	evpipe_write (EV_A_ &async_pending);	4592	evpipe_write (EV_A_ &async_pending);
4294	}	4593	}
4295	#endif	4594	#endif
…		…
4332		4631
4333	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));
4334	}	4633	}
4335		4634
4336	void	4635	void
4337	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
4338	{	4637	{
4339	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));
4340		4639
4341	if (expect_false (!once))	4640	if (expect_false (!once))
4342	{	4641	{
…		…
4364		4663
4365	/*****************************************************************************/	4664	/*****************************************************************************/
4366		4665
4367	#if EV_WALK_ENABLE	4666	#if EV_WALK_ENABLE
4368	void ecb_cold	4667	void ecb_cold
4369	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
4370	{	4669	{
4371	int i, j;	4670	int i, j;
4372	ev_watcher_list *wl, *wn;	4671	ev_watcher_list *wl, *wn;
4373		4672
4374	if (types & (EV_IO | EV_EMBED))	4673	if (types & (EV_IO | EV_EMBED))

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines