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Comparing libev/ev.c (file contents):
Revision 1.418 by root, Mon Apr 2 23:14:41 2012 UTC vs.
Revision 1.456 by root, Thu Jul 4 22:32:23 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
…		…
356		357
357	#ifndef EV_HEAP_CACHE_AT	358	#ifndef EV_HEAP_CACHE_AT
358	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	359	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359	#endif	360	#endif
360		361
		362	#ifdef ANDROID
		363	/* supposedly, android doesn't typedef fd_mask */
		364	# undef EV_USE_SELECT
		365	# define EV_USE_SELECT 0
		366	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		367	# undef EV_USE_CLOCK_SYSCALL
		368	# define EV_USE_CLOCK_SYSCALL 0
		369	#endif
		370
		371	/* aix's poll.h seems to cause lots of trouble */
		372	#ifdef _AIX
		373	/* AIX has a completely broken poll.h header */
		374	# undef EV_USE_POLL
		375	# define EV_USE_POLL 0
		376	#endif
		377
361	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	378	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
362	/* which makes programs even slower. might work on other unices, too. */	379	/* which makes programs even slower. might work on other unices, too. */
363	#if EV_USE_CLOCK_SYSCALL	380	#if EV_USE_CLOCK_SYSCALL
364	# include <syscall.h>	381	# include <sys/syscall.h>
365	# ifdef SYS_clock_gettime	382	# ifdef SYS_clock_gettime
366	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))	383	# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367	# undef EV_USE_MONOTONIC	384	# undef EV_USE_MONOTONIC
368	# define EV_USE_MONOTONIC 1	385	# define EV_USE_MONOTONIC 1
369	# else	386	# else
…		…
372	# endif	389	# endif
373	#endif	390	#endif
374		391
375	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	392	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
376		393
377	#ifdef _AIX
378	/* AIX has a completely broken poll.h header */
379	# undef EV_USE_POLL
380	# define EV_USE_POLL 0
381	#endif
382
383	#ifndef CLOCK_MONOTONIC	394	#ifndef CLOCK_MONOTONIC
384	# undef EV_USE_MONOTONIC	395	# undef EV_USE_MONOTONIC
385	# define EV_USE_MONOTONIC 0	396	# define EV_USE_MONOTONIC 0
386	#endif	397	#endif
387		398
…		…
408	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */	419	/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409	# ifndef IN_DONT_FOLLOW	420	# ifndef IN_DONT_FOLLOW
410	# undef EV_USE_INOTIFY	421	# undef EV_USE_INOTIFY
411	# define EV_USE_INOTIFY 0	422	# define EV_USE_INOTIFY 0
412	# endif	423	# endif
413	#endif
414
415	#if EV_SELECT_IS_WINSOCKET
416	# include <winsock.h>
417	#endif	424	#endif
418		425
419	#if EV_USE_EVENTFD	426	#if EV_USE_EVENTFD
420	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */	427	/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421	# include <stdint.h>	428	# include <stdint.h>
…		…
507	*/	514	*/
508		515
509	#ifndef ECB_H	516	#ifndef ECB_H
510	#define ECB_H	517	#define ECB_H
511		518
		519	/* 16 bits major, 16 bits minor */
		520	#define ECB_VERSION 0x00010003
		521
512	#ifdef _WIN32	522	#ifdef _WIN32
513	typedef signed char int8_t;	523	typedef signed char int8_t;
514	typedef unsigned char uint8_t;	524	typedef unsigned char uint8_t;
515	typedef signed short int16_t;	525	typedef signed short int16_t;
516	typedef unsigned short uint16_t;	526	typedef unsigned short uint16_t;
…		…
521	typedef unsigned long long uint64_t;	531	typedef unsigned long long uint64_t;
522	#else /* _MSC_VER || __BORLANDC__ */	532	#else /* _MSC_VER || __BORLANDC__ */
523	typedef signed __int64 int64_t;	533	typedef signed __int64 int64_t;
524	typedef unsigned __int64 uint64_t;	534	typedef unsigned __int64 uint64_t;
525	#endif	535	#endif
		536	#ifdef _WIN64
		537	#define ECB_PTRSIZE 8
		538	typedef uint64_t uintptr_t;
		539	typedef int64_t intptr_t;
		540	#else
		541	#define ECB_PTRSIZE 4
		542	typedef uint32_t uintptr_t;
		543	typedef int32_t intptr_t;
		544	#endif
526	#else	545	#else
527	#include <inttypes.h>	546	#include <inttypes.h>
		547	#if UINTMAX_MAX > 0xffffffffU
		548	#define ECB_PTRSIZE 8
		549	#else
		550	#define ECB_PTRSIZE 4
		551	#endif
		552	#endif
		553
		554	/* work around x32 idiocy by defining proper macros */
		555	#if __x86_64 || _M_AMD64
		556	#if __ILP32
		557	#define ECB_AMD64_X32 1
		558	#else
		559	#define ECB_AMD64 1
		560	#endif
528	#endif	561	#endif
529		562
530	/* many compilers define _GNUC_ to some versions but then only implement	563	/* many compilers define _GNUC_ to some versions but then only implement
531	* what their idiot authors think are the "more important" extensions,	564	* what their idiot authors think are the "more important" extensions,
532	* causing enormous grief in return for some better fake benchmark numbers.	565	* causing enormous grief in return for some better fake benchmark numbers.
…		…
540	#else	573	#else
541	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	574	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542	#endif	575	#endif
543	#endif	576	#endif
544		577
		578	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
		579	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		580	#define ECB_C11 (__STDC_VERSION__ >= 201112L)
		581	#define ECB_CPP (__cplusplus+0)
		582	#define ECB_CPP11 (__cplusplus >= 201103L)
		583
		584	#if ECB_CPP
		585	#define ECB_EXTERN_C extern "C"
		586	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		587	#define ECB_EXTERN_C_END }
		588	#else
		589	#define ECB_EXTERN_C extern
		590	#define ECB_EXTERN_C_BEG
		591	#define ECB_EXTERN_C_END
		592	#endif
		593
545	/*****************************************************************************/	594	/*****************************************************************************/
546		595
547	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	596	/* 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 */	597	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549		598
550	#if ECB_NO_THREADS	599	#if ECB_NO_THREADS
551	# define ECB_NO_SMP 1	600	#define ECB_NO_SMP 1
552	#endif	601	#endif
553		602
554	#if ECB_NO_THREADS || ECB_NO_SMP	603	#if ECB_NO_SMP
555	#define ECB_MEMORY_FENCE do { } while (0)	604	#define ECB_MEMORY_FENCE do { } while (0)
556	#endif	605	#endif
557		606
558	#ifndef ECB_MEMORY_FENCE	607	#ifndef ECB_MEMORY_FENCE
559	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	608	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560	#if __i386 || __i386__	609	#if __i386 || __i386__
561	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	610	#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 */	611	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */	612	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	613	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	614	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")	615	#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 */	616	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	617	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	618	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \	619	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__	620	|| 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")	621	#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__ \	622	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__	623	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	624	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576	#elif __sparc || __sparc__	625	#elif __sparc || __sparc__
577	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")	626	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	627	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	628	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580	#elif defined __s390__ || defined __s390x__	629	#elif defined __s390__ || defined __s390x__
581	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	630	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582	#elif defined __mips__	631	#elif defined __mips__
		632	/* GNU/Linux emulates sync on mips1 architectures, so we force it's use */
		633	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
		634	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
		635	#elif defined __alpha__
583	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	636	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		637	#elif defined __hppa__
		638	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		639	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
		640	#elif defined __ia64__
		641	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
584	#endif	642	#endif
585	#endif	643	#endif
586	#endif	644	#endif
587		645
588	#ifndef ECB_MEMORY_FENCE	646	#ifndef ECB_MEMORY_FENCE
		647	#if ECB_GCC_VERSION(4,7)
		648	/* see comment below (stdatomic.h) about the C11 memory model. */
		649	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		650
		651	/* The __has_feature syntax from clang is so misdesigned that we cannot use it
		652	* without risking compile time errors with other compilers. We *could*
		653	* define our own ecb_clang_has_feature, but I just can't be bothered to work
		654	* around this shit time and again.
		655	* #elif defined __clang && __has_feature (cxx_atomic)
		656	* // see comment below (stdatomic.h) about the C11 memory model.
		657	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		658	*/
		659
589	#if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	660	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
590	#define ECB_MEMORY_FENCE __sync_synchronize ()	661	#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 */	662	#elif _MSC_VER >= 1400 /* VC++ 2005 */
594	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	663	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
595	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	664	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
596	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	665	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
597	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	666	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
…		…
607	#define ECB_MEMORY_FENCE __sync ()	676	#define ECB_MEMORY_FENCE __sync ()
608	#endif	677	#endif
609	#endif	678	#endif
610		679
611	#ifndef ECB_MEMORY_FENCE	680	#ifndef ECB_MEMORY_FENCE
		681	#if ECB_C11 && !defined __STDC_NO_ATOMICS__
		682	/* we assume that these memory fences work on all variables/all memory accesses, */
		683	/* not just C11 atomics and atomic accesses */
		684	#include <stdatomic.h>
		685	/* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
		686	/* any fence other than seq_cst, which isn't very efficient for us. */
		687	/* Why that is, we don't know - either the C11 memory model is quite useless */
		688	/* for most usages, or gcc and clang have a bug */
		689	/* I *currently* lean towards the latter, and inefficiently implement */
		690	/* all three of ecb's fences as a seq_cst fence */
		691	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
		692	#endif
		693	#endif
		694
		695	#ifndef ECB_MEMORY_FENCE
612	#if !ECB_AVOID_PTHREADS	696	#if !ECB_AVOID_PTHREADS
613	/*	697	/*
614	* if you get undefined symbol references to pthread_mutex_lock,	698	* if you get undefined symbol references to pthread_mutex_lock,
615	* or failure to find pthread.h, then you should implement	699	* or failure to find pthread.h, then you should implement
616	* the ECB_MEMORY_FENCE operations for your cpu/compiler	700	* the ECB_MEMORY_FENCE operations for your cpu/compiler
…		…
634	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	718	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
635	#endif	719	#endif
636		720
637	/*****************************************************************************/	721	/*****************************************************************************/
638		722
639	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
640
641	#if __cplusplus	723	#if __cplusplus
642	#define ecb_inline static inline	724	#define ecb_inline static inline
643	#elif ECB_GCC_VERSION(2,5)	725	#elif ECB_GCC_VERSION(2,5)
644	#define ecb_inline static __inline__	726	#define ecb_inline static __inline__
645	#elif ECB_C99	727	#elif ECB_C99
…		…
683	#elif ECB_GCC_VERSION(3,0)	765	#elif ECB_GCC_VERSION(3,0)
684	#define ecb_decltype(x) __typeof(x)	766	#define ecb_decltype(x) __typeof(x)
685	#endif	767	#endif
686		768
687	#define ecb_noinline ecb_attribute ((__noinline__))	769	#define ecb_noinline ecb_attribute ((__noinline__))
688	#define ecb_noreturn ecb_attribute ((__noreturn__))
689	#define ecb_unused ecb_attribute ((__unused__))	770	#define ecb_unused ecb_attribute ((__unused__))
690	#define ecb_const ecb_attribute ((__const__))	771	#define ecb_const ecb_attribute ((__const__))
691	#define ecb_pure ecb_attribute ((__pure__))	772	#define ecb_pure ecb_attribute ((__pure__))
		773
		774	#if ECB_C11
		775	#define ecb_noreturn _Noreturn
		776	#else
		777	#define ecb_noreturn ecb_attribute ((__noreturn__))
		778	#endif
692		779
693	#if ECB_GCC_VERSION(4,3)	780	#if ECB_GCC_VERSION(4,3)
694	#define ecb_artificial ecb_attribute ((__artificial__))	781	#define ecb_artificial ecb_attribute ((__artificial__))
695	#define ecb_hot ecb_attribute ((__hot__))	782	#define ecb_hot ecb_attribute ((__hot__))
696	#define ecb_cold ecb_attribute ((__cold__))	783	#define ecb_cold ecb_attribute ((__cold__))
…		…
787		874
788	return r + ecb_ld32 (x);	875	return r + ecb_ld32 (x);
789	}	876	}
790	#endif	877	#endif
791		878
		879	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
		880	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
		881	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
		882	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
		883
792	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	884	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
793	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	885	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
794	{	886	{
795	return ( (x * 0x0802U & 0x22110U)	887	return ( (x * 0x0802U & 0x22110U)
796	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	888	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
…		…
880	ecb_inline void ecb_unreachable (void) ecb_noreturn;	972	ecb_inline void ecb_unreachable (void) ecb_noreturn;
881	ecb_inline void ecb_unreachable (void) { }	973	ecb_inline void ecb_unreachable (void) { }
882	#endif	974	#endif
883		975
884	/* try to tell the compiler that some condition is definitely true */	976	/* try to tell the compiler that some condition is definitely true */
885	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	977	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
886		978
887	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	979	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
888	ecb_inline unsigned char	980	ecb_inline unsigned char
889	ecb_byteorder_helper (void)	981	ecb_byteorder_helper (void)
890	{	982	{
891	const uint32_t u = 0x11223344;	983	/* the union code still generates code under pressure in gcc, */
892	return *(unsigned char *)&u;	984	/* but less than using pointers, and always seems to */
		985	/* successfully return a constant. */
		986	/* the reason why we have this horrible preprocessor mess */
		987	/* is to avoid it in all cases, at least on common architectures */
		988	/* or when using a recent enough gcc version (>= 4.6) */
		989	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
		990	return 0x44;
		991	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		992	return 0x44;
		993	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		994	return 0x11;
		995	#else
		996	union
		997	{
		998	uint32_t i;
		999	uint8_t c;
		1000	} u = { 0x11223344 };
		1001	return u.c;
		1002	#endif
893	}	1003	}
894		1004
895	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1005	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
896	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1006	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
897	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1007	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
…		…
928	}	1038	}
929	#else	1039	#else
930	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1040	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
931	#endif	1041	#endif
932		1042
		1043	/*******************************************************************************/
		1044	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1045
		1046	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1047	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1048	#if 0 \
		1049	|| __i386 || __i386__ \
		1050	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \
		1051	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
		1052	|| defined __arm__ && defined __ARM_EABI__ \
		1053	|| defined __s390__ || defined __s390x__ \
		1054	|| defined __mips__ \
		1055	|| defined __alpha__ \
		1056	|| defined __hppa__ \
		1057	|| defined __ia64__ \
		1058	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
		1059	#define ECB_STDFP 1
		1060	#include <string.h> /* for memcpy */
		1061	#else
		1062	#define ECB_STDFP 0
		1063	#include <math.h> /* for frexp*, ldexp* */
		1064	#endif
		1065
		1066	#ifndef ECB_NO_LIBM
		1067
		1068	/* convert a float to ieee single/binary32 */
		1069	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
		1070	ecb_function_ uint32_t
		1071	ecb_float_to_binary32 (float x)
		1072	{
		1073	uint32_t r;
		1074
		1075	#if ECB_STDFP
		1076	memcpy (&r, &x, 4);
		1077	#else
		1078	/* slow emulation, works for anything but -0 */
		1079	uint32_t m;
		1080	int e;
		1081
		1082	if (x == 0e0f ) return 0x00000000U;
		1083	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1084	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1085	if (x != x ) return 0x7fbfffffU;
		1086
		1087	m = frexpf (x, &e) * 0x1000000U;
		1088
		1089	r = m & 0x80000000U;
		1090
		1091	if (r)
		1092	m = -m;
		1093
		1094	if (e <= -126)
		1095	{
		1096	m &= 0xffffffU;
		1097	m >>= (-125 - e);
		1098	e = -126;
		1099	}
		1100
		1101	r |= (e + 126) << 23;
		1102	r |= m & 0x7fffffU;
		1103	#endif
		1104
		1105	return r;
		1106	}
		1107
		1108	/* converts an ieee single/binary32 to a float */
		1109	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
		1110	ecb_function_ float
		1111	ecb_binary32_to_float (uint32_t x)
		1112	{
		1113	float r;
		1114
		1115	#if ECB_STDFP
		1116	memcpy (&r, &x, 4);
		1117	#else
		1118	/* emulation, only works for normals and subnormals and +0 */
		1119	int neg = x >> 31;
		1120	int e = (x >> 23) & 0xffU;
		1121
		1122	x &= 0x7fffffU;
		1123
		1124	if (e)
		1125	x |= 0x800000U;
		1126	else
		1127	e = 1;
		1128
		1129	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
		1130	r = ldexpf (x * (0.5f / 0x800000U), e - 126);
		1131
		1132	r = neg ? -r : r;
		1133	#endif
		1134
		1135	return r;
		1136	}
		1137
		1138	/* convert a double to ieee double/binary64 */
		1139	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
		1140	ecb_function_ uint64_t
		1141	ecb_double_to_binary64 (double x)
		1142	{
		1143	uint64_t r;
		1144
		1145	#if ECB_STDFP
		1146	memcpy (&r, &x, 8);
		1147	#else
		1148	/* slow emulation, works for anything but -0 */
		1149	uint64_t m;
		1150	int e;
		1151
		1152	if (x == 0e0 ) return 0x0000000000000000U;
		1153	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1154	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1155	if (x != x ) return 0X7ff7ffffffffffffU;
		1156
		1157	m = frexp (x, &e) * 0x20000000000000U;
		1158
		1159	r = m & 0x8000000000000000;;
		1160
		1161	if (r)
		1162	m = -m;
		1163
		1164	if (e <= -1022)
		1165	{
		1166	m &= 0x1fffffffffffffU;
		1167	m >>= (-1021 - e);
		1168	e = -1022;
		1169	}
		1170
		1171	r |= ((uint64_t)(e + 1022)) << 52;
		1172	r |= m & 0xfffffffffffffU;
		1173	#endif
		1174
		1175	return r;
		1176	}
		1177
		1178	/* converts an ieee double/binary64 to a double */
		1179	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
		1180	ecb_function_ double
		1181	ecb_binary64_to_double (uint64_t x)
		1182	{
		1183	double r;
		1184
		1185	#if ECB_STDFP
		1186	memcpy (&r, &x, 8);
		1187	#else
		1188	/* emulation, only works for normals and subnormals and +0 */
		1189	int neg = x >> 63;
		1190	int e = (x >> 52) & 0x7ffU;
		1191
		1192	x &= 0xfffffffffffffU;
		1193
		1194	if (e)
		1195	x |= 0x10000000000000U;
		1196	else
		1197	e = 1;
		1198
		1199	/* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
		1200	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1201
		1202	r = neg ? -r : r;
		1203	#endif
		1204
		1205	return r;
		1206	}
		1207
		1208	#endif
		1209
933	#endif	1210	#endif
934		1211
935	/* ECB.H END */	1212	/* ECB.H END */
936		1213
937	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1214	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
…		…
1103	{	1380	{
1104	write (STDERR_FILENO, msg, strlen (msg));	1381	write (STDERR_FILENO, msg, strlen (msg));
1105	}	1382	}
1106	#endif	1383	#endif
1107		1384
1108	static void (*syserr_cb)(const char *msg);	1385	static void (*syserr_cb)(const char *msg) EV_THROW;
1109		1386
1110	void ecb_cold	1387	void ecb_cold
1111	ev_set_syserr_cb (void (*cb)(const char *msg))	1388	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1112	{	1389	{
1113	syserr_cb = cb;	1390	syserr_cb = cb;
1114	}	1391	}
1115		1392
1116	static void noinline ecb_cold	1393	static void noinline ecb_cold
…		…
1134	abort ();	1411	abort ();
1135	}	1412	}
1136	}	1413	}
1137		1414
1138	static void *	1415	static void *
1139	ev_realloc_emul (void *ptr, long size)	1416	ev_realloc_emul (void *ptr, long size) EV_THROW
1140	{	1417	{
1141	#if __GLIBC__
1142	return realloc (ptr, size);
1143	#else
1144	/* some systems, notably openbsd and darwin, fail to properly	1418	/* some systems, notably openbsd and darwin, fail to properly
1145	* implement realloc (x, 0) (as required by both ansi c-89 and	1419	* implement realloc (x, 0) (as required by both ansi c-89 and
1146	* the single unix specification, so work around them here.	1420	* the single unix specification, so work around them here.
		1421	* recently, also (at least) fedora and debian started breaking it,
		1422	* despite documenting it otherwise.
1147	*/	1423	*/
1148		1424
1149	if (size)	1425	if (size)
1150	return realloc (ptr, size);	1426	return realloc (ptr, size);
1151		1427
1152	free (ptr);	1428	free (ptr);
1153	return 0;	1429	return 0;
1154	#endif
1155	}	1430	}
1156		1431
1157	static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;	1432	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1158		1433
1159	void ecb_cold	1434	void ecb_cold
1160	ev_set_allocator (void *(*cb)(void *ptr, long size))	1435	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1161	{	1436	{
1162	alloc = cb;	1437	alloc = cb;
1163	}	1438	}
1164		1439
1165	inline_speed void *	1440	inline_speed void *
…		…
1282		1557
1283	/*****************************************************************************/	1558	/*****************************************************************************/
1284		1559
1285	#ifndef EV_HAVE_EV_TIME	1560	#ifndef EV_HAVE_EV_TIME
1286	ev_tstamp	1561	ev_tstamp
1287	ev_time (void)	1562	ev_time (void) EV_THROW
1288	{	1563	{
1289	#if EV_USE_REALTIME	1564	#if EV_USE_REALTIME
1290	if (expect_true (have_realtime))	1565	if (expect_true (have_realtime))
1291	{	1566	{
1292	struct timespec ts;	1567	struct timespec ts;
…		…
1316	return ev_time ();	1591	return ev_time ();
1317	}	1592	}
1318		1593
1319	#if EV_MULTIPLICITY	1594	#if EV_MULTIPLICITY
1320	ev_tstamp	1595	ev_tstamp
1321	ev_now (EV_P)	1596	ev_now (EV_P) EV_THROW
1322	{	1597	{
1323	return ev_rt_now;	1598	return ev_rt_now;
1324	}	1599	}
1325	#endif	1600	#endif
1326		1601
1327	void	1602	void
1328	ev_sleep (ev_tstamp delay)	1603	ev_sleep (ev_tstamp delay) EV_THROW
1329	{	1604	{
1330	if (delay > 0.)	1605	if (delay > 0.)
1331	{	1606	{
1332	#if EV_USE_NANOSLEEP	1607	#if EV_USE_NANOSLEEP
1333	struct timespec ts;	1608	struct timespec ts;
…		…
1414	pendingcb (EV_P_ ev_prepare *w, int revents)	1689	pendingcb (EV_P_ ev_prepare *w, int revents)
1415	{	1690	{
1416	}	1691	}
1417		1692
1418	void noinline	1693	void noinline
1419	ev_feed_event (EV_P_ void *w, int revents)	1694	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1420	{	1695	{
1421	W w_ = (W)w;	1696	W w_ = (W)w;
1422	int pri = ABSPRI (w_);	1697	int pri = ABSPRI (w_);
1423		1698
1424	if (expect_false (w_->pending))	1699	if (expect_false (w_->pending))
…		…
1428	w_->pending = ++pendingcnt [pri];	1703	w_->pending = ++pendingcnt [pri];
1429	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);	1704	array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1430	pendings [pri][w_->pending - 1].w = w_;	1705	pendings [pri][w_->pending - 1].w = w_;
1431	pendings [pri][w_->pending - 1].events = revents;	1706	pendings [pri][w_->pending - 1].events = revents;
1432	}	1707	}
		1708
		1709	pendingpri = NUMPRI - 1;
1433	}	1710	}
1434		1711
1435	inline_speed void	1712	inline_speed void
1436	feed_reverse (EV_P_ W w)	1713	feed_reverse (EV_P_ W w)
1437	{	1714	{
…		…
1483	if (expect_true (!anfd->reify))	1760	if (expect_true (!anfd->reify))
1484	fd_event_nocheck (EV_A_ fd, revents);	1761	fd_event_nocheck (EV_A_ fd, revents);
1485	}	1762	}
1486		1763
1487	void	1764	void
1488	ev_feed_fd_event (EV_P_ int fd, int revents)	1765	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1489	{	1766	{
1490	if (fd >= 0 && fd < anfdmax)	1767	if (fd >= 0 && fd < anfdmax)
1491	fd_event_nocheck (EV_A_ fd, revents);	1768	fd_event_nocheck (EV_A_ fd, revents);
1492	}	1769	}
1493		1770
…		…
1812	static void noinline ecb_cold	2089	static void noinline ecb_cold
1813	evpipe_init (EV_P)	2090	evpipe_init (EV_P)
1814	{	2091	{
1815	if (!ev_is_active (&pipe_w))	2092	if (!ev_is_active (&pipe_w))
1816	{	2093	{
		2094	int fds [2];
		2095
1817	# if EV_USE_EVENTFD	2096	# if EV_USE_EVENTFD
		2097	fds [0] = -1;
1818	evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);	2098	fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1819	if (evfd < 0 && errno == EINVAL)	2099	if (fds [1] < 0 && errno == EINVAL)
1820	evfd = eventfd (0, 0);	2100	fds [1] = eventfd (0, 0);
1821		2101
1822	if (evfd >= 0)	2102	if (fds [1] < 0)
		2103	# endif
1823	{	2104	{
		2105	while (pipe (fds))
		2106	ev_syserr ("(libev) error creating signal/async pipe");
		2107
		2108	fd_intern (fds [0]);
		2109	}
		2110
1824	evpipe [0] = -1;	2111	evpipe [0] = fds [0];
1825	fd_intern (evfd); /* doing it twice doesn't hurt */	2112
1826	ev_io_set (&pipe_w, evfd, EV_READ);	2113	if (evpipe [1] < 0)
		2114	evpipe [1] = fds [1]; /* first call, set write fd */
		2115	else
		2116	{
		2117	/* on subsequent calls, do not change evpipe [1] */
		2118	/* so that evpipe_write can always rely on its value. */
		2119	/* this branch does not do anything sensible on windows, */
		2120	/* so must not be executed on windows */
		2121
		2122	dup2 (fds [1], evpipe [1]);
		2123	close (fds [1]);
		2124	}
		2125
		2126	fd_intern (evpipe [1]);
		2127
		2128	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
		2129	ev_io_start (EV_A_ &pipe_w);
		2130	ev_unref (EV_A); /* watcher should not keep loop alive */
		2131	}
		2132	}
		2133
		2134	inline_speed void
		2135	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
		2136	{
		2137	ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
		2138
		2139	if (expect_true (*flag))
		2140	return;
		2141
		2142	*flag = 1;
		2143	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		2144
		2145	pipe_write_skipped = 1;
		2146
		2147	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		2148
		2149	if (pipe_write_wanted)
		2150	{
		2151	int old_errno;
		2152
		2153	pipe_write_skipped = 0;
		2154	ECB_MEMORY_FENCE_RELEASE;
		2155
		2156	old_errno = errno; /* save errno because write will clobber it */
		2157
		2158	#if EV_USE_EVENTFD
		2159	if (evpipe [0] < 0)
		2160	{
		2161	uint64_t counter = 1;
		2162	write (evpipe [1], &counter, sizeof (uint64_t));
1827	}	2163	}
1828	else	2164	else
1829	# endif	2165	#endif
1830	{	2166	{
1831	while (pipe (evpipe))	2167	#ifdef _WIN32
1832	ev_syserr ("(libev) error creating signal/async pipe");	2168	WSABUF buf;
1833		2169	DWORD sent;
1834	fd_intern (evpipe [0]);	2170	buf.buf = &buf;
1835	fd_intern (evpipe [1]);	2171	buf.len = 1;
1836	ev_io_set (&pipe_w, evpipe [0], EV_READ);	2172	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1837	}	2173	#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);	2174	write (evpipe [1], &(evpipe [1]), 1);
		2175	#endif
1883	}	2176	}
1884		2177
1885	errno = old_errno;	2178	errno = old_errno;
1886	}	2179	}
1887	}	2180	}
…		…
1894	int i;	2187	int i;
1895		2188
1896	if (revents & EV_READ)	2189	if (revents & EV_READ)
1897	{	2190	{
1898	#if EV_USE_EVENTFD	2191	#if EV_USE_EVENTFD
1899	if (evfd >= 0)	2192	if (evpipe [0] < 0)
1900	{	2193	{
1901	uint64_t counter;	2194	uint64_t counter;
1902	read (evfd, &counter, sizeof (uint64_t));	2195	read (evpipe [1], &counter, sizeof (uint64_t));
1903	}	2196	}
1904	else	2197	else
1905	#endif	2198	#endif
1906	{	2199	{
1907	char dummy;	2200	char dummy[4];
1908	/* see discussion in evpipe_write when you think this read should be recv in win32 */	2201	#ifdef _WIN32
		2202	WSABUF buf;
		2203	DWORD recvd;
		2204	DWORD flags = 0;
		2205	buf.buf = dummy;
		2206	buf.len = sizeof (dummy);
		2207	WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
		2208	#else
1909	read (evpipe [0], &dummy, 1);	2209	read (evpipe [0], &dummy, sizeof (dummy));
		2210	#endif
1910	}	2211	}
1911	}	2212	}
1912		2213
1913	pipe_write_skipped = 0;	2214	pipe_write_skipped = 0;
		2215
		2216	ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1914		2217
1915	#if EV_SIGNAL_ENABLE	2218	#if EV_SIGNAL_ENABLE
1916	if (sig_pending)	2219	if (sig_pending)
1917	{	2220	{
1918	sig_pending = 0;	2221	sig_pending = 0;
		2222
		2223	ECB_MEMORY_FENCE;
1919		2224
1920	for (i = EV_NSIG - 1; i--; )	2225	for (i = EV_NSIG - 1; i--; )
1921	if (expect_false (signals [i].pending))	2226	if (expect_false (signals [i].pending))
1922	ev_feed_signal_event (EV_A_ i + 1);	2227	ev_feed_signal_event (EV_A_ i + 1);
1923	}	2228	}
…		…
1925		2230
1926	#if EV_ASYNC_ENABLE	2231	#if EV_ASYNC_ENABLE
1927	if (async_pending)	2232	if (async_pending)
1928	{	2233	{
1929	async_pending = 0;	2234	async_pending = 0;
		2235
		2236	ECB_MEMORY_FENCE;
1930		2237
1931	for (i = asynccnt; i--; )	2238	for (i = asynccnt; i--; )
1932	if (asyncs [i]->sent)	2239	if (asyncs [i]->sent)
1933	{	2240	{
1934	asyncs [i]->sent = 0;	2241	asyncs [i]->sent = 0;
		2242	ECB_MEMORY_FENCE_RELEASE;
1935	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);	2243	ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1936	}	2244	}
1937	}	2245	}
1938	#endif	2246	#endif
1939	}	2247	}
1940		2248
1941	/*****************************************************************************/	2249	/*****************************************************************************/
1942		2250
1943	void	2251	void
1944	ev_feed_signal (int signum)	2252	ev_feed_signal (int signum) EV_THROW
1945	{	2253	{
1946	#if EV_MULTIPLICITY	2254	#if EV_MULTIPLICITY
		2255	EV_P;
		2256	ECB_MEMORY_FENCE_ACQUIRE;
1947	EV_P = signals [signum - 1].loop;	2257	EV_A = signals [signum - 1].loop;
1948		2258
1949	if (!EV_A)	2259	if (!EV_A)
1950	return;	2260	return;
1951	#endif	2261	#endif
1952		2262
1953	if (!ev_active (&pipe_w))
1954	return;
1955
1956	signals [signum - 1].pending = 1;	2263	signals [signum - 1].pending = 1;
1957	evpipe_write (EV_A_ &sig_pending);	2264	evpipe_write (EV_A_ &sig_pending);
1958	}	2265	}
1959		2266
1960	static void	2267	static void
…		…
1966		2273
1967	ev_feed_signal (signum);	2274	ev_feed_signal (signum);
1968	}	2275	}
1969		2276
1970	void noinline	2277	void noinline
1971	ev_feed_signal_event (EV_P_ int signum)	2278	ev_feed_signal_event (EV_P_ int signum) EV_THROW
1972	{	2279	{
1973	WL w;	2280	WL w;
1974		2281
1975	if (expect_false (signum <= 0 || signum > EV_NSIG))	2282	if (expect_false (signum <= 0 || signum >= EV_NSIG))
1976	return;	2283	return;
1977		2284
1978	--signum;	2285	--signum;
1979		2286
1980	#if EV_MULTIPLICITY	2287	#if EV_MULTIPLICITY
…		…
1984	if (expect_false (signals [signum].loop != EV_A))	2291	if (expect_false (signals [signum].loop != EV_A))
1985	return;	2292	return;
1986	#endif	2293	#endif
1987		2294
1988	signals [signum].pending = 0;	2295	signals [signum].pending = 0;
		2296	ECB_MEMORY_FENCE_RELEASE;
1989		2297
1990	for (w = signals [signum].head; w; w = w->next)	2298	for (w = signals [signum].head; w; w = w->next)
1991	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	2299	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1992	}	2300	}
1993		2301
…		…
2092	#if EV_USE_SELECT	2400	#if EV_USE_SELECT
2093	# include "ev_select.c"	2401	# include "ev_select.c"
2094	#endif	2402	#endif
2095		2403
2096	int ecb_cold	2404	int ecb_cold
2097	ev_version_major (void)	2405	ev_version_major (void) EV_THROW
2098	{	2406	{
2099	return EV_VERSION_MAJOR;	2407	return EV_VERSION_MAJOR;
2100	}	2408	}
2101		2409
2102	int ecb_cold	2410	int ecb_cold
2103	ev_version_minor (void)	2411	ev_version_minor (void) EV_THROW
2104	{	2412	{
2105	return EV_VERSION_MINOR;	2413	return EV_VERSION_MINOR;
2106	}	2414	}
2107		2415
2108	/* return true if we are running with elevated privileges and should ignore env variables */	2416	/* return true if we are running with elevated privileges and should ignore env variables */
…		…
2116	|| getgid () != getegid ();	2424	|| getgid () != getegid ();
2117	#endif	2425	#endif
2118	}	2426	}
2119		2427
2120	unsigned int ecb_cold	2428	unsigned int ecb_cold
2121	ev_supported_backends (void)	2429	ev_supported_backends (void) EV_THROW
2122	{	2430	{
2123	unsigned int flags = 0;	2431	unsigned int flags = 0;
2124		2432
2125	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2433	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2126	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2434	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2130		2438
2131	return flags;	2439	return flags;
2132	}	2440	}
2133		2441
2134	unsigned int ecb_cold	2442	unsigned int ecb_cold
2135	ev_recommended_backends (void)	2443	ev_recommended_backends (void) EV_THROW
2136	{	2444	{
2137	unsigned int flags = ev_supported_backends ();	2445	unsigned int flags = ev_supported_backends ();
2138		2446
2139	#ifndef __NetBSD__	2447	#ifndef __NetBSD__
2140	/* kqueue is borked on everything but netbsd apparently */	2448	/* kqueue is borked on everything but netbsd apparently */
…		…
2152		2460
2153	return flags;	2461	return flags;
2154	}	2462	}
2155		2463
2156	unsigned int ecb_cold	2464	unsigned int ecb_cold
2157	ev_embeddable_backends (void)	2465	ev_embeddable_backends (void) EV_THROW
2158	{	2466	{
2159	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2467	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2160		2468
2161	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2469	/* 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 */	2470	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2164		2472
2165	return flags;	2473	return flags;
2166	}	2474	}
2167		2475
2168	unsigned int	2476	unsigned int
2169	ev_backend (EV_P)	2477	ev_backend (EV_P) EV_THROW
2170	{	2478	{
2171	return backend;	2479	return backend;
2172	}	2480	}
2173		2481
2174	#if EV_FEATURE_API	2482	#if EV_FEATURE_API
2175	unsigned int	2483	unsigned int
2176	ev_iteration (EV_P)	2484	ev_iteration (EV_P) EV_THROW
2177	{	2485	{
2178	return loop_count;	2486	return loop_count;
2179	}	2487	}
2180		2488
2181	unsigned int	2489	unsigned int
2182	ev_depth (EV_P)	2490	ev_depth (EV_P) EV_THROW
2183	{	2491	{
2184	return loop_depth;	2492	return loop_depth;
2185	}	2493	}
2186		2494
2187	void	2495	void
2188	ev_set_io_collect_interval (EV_P_ ev_tstamp interval)	2496	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2189	{	2497	{
2190	io_blocktime = interval;	2498	io_blocktime = interval;
2191	}	2499	}
2192		2500
2193	void	2501	void
2194	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)	2502	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2195	{	2503	{
2196	timeout_blocktime = interval;	2504	timeout_blocktime = interval;
2197	}	2505	}
2198		2506
2199	void	2507	void
2200	ev_set_userdata (EV_P_ void *data)	2508	ev_set_userdata (EV_P_ void *data) EV_THROW
2201	{	2509	{
2202	userdata = data;	2510	userdata = data;
2203	}	2511	}
2204		2512
2205	void *	2513	void *
2206	ev_userdata (EV_P)	2514	ev_userdata (EV_P) EV_THROW
2207	{	2515	{
2208	return userdata;	2516	return userdata;
2209	}	2517	}
2210		2518
2211	void	2519	void
2212	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2520	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2213	{	2521	{
2214	invoke_cb = invoke_pending_cb;	2522	invoke_cb = invoke_pending_cb;
2215	}	2523	}
2216		2524
2217	void	2525	void
2218	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))	2526	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2219	{	2527	{
2220	release_cb = release;	2528	release_cb = release;
2221	acquire_cb = acquire;	2529	acquire_cb = acquire;
2222	}	2530	}
2223	#endif	2531	#endif
2224		2532
2225	/* initialise a loop structure, must be zero-initialised */	2533	/* initialise a loop structure, must be zero-initialised */
2226	static void noinline ecb_cold	2534	static void noinline ecb_cold
2227	loop_init (EV_P_ unsigned int flags)	2535	loop_init (EV_P_ unsigned int flags) EV_THROW
2228	{	2536	{
2229	if (!backend)	2537	if (!backend)
2230	{	2538	{
2231	origflags = flags;	2539	origflags = flags;
2232		2540
…		…
2277	#if EV_ASYNC_ENABLE	2585	#if EV_ASYNC_ENABLE
2278	async_pending = 0;	2586	async_pending = 0;
2279	#endif	2587	#endif
2280	pipe_write_skipped = 0;	2588	pipe_write_skipped = 0;
2281	pipe_write_wanted = 0;	2589	pipe_write_wanted = 0;
		2590	evpipe [0] = -1;
		2591	evpipe [1] = -1;
2282	#if EV_USE_INOTIFY	2592	#if EV_USE_INOTIFY
2283	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2593	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2284	#endif	2594	#endif
2285	#if EV_USE_SIGNALFD	2595	#if EV_USE_SIGNALFD
2286	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2596	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2337	EV_INVOKE_PENDING;	2647	EV_INVOKE_PENDING;
2338	}	2648	}
2339	#endif	2649	#endif
2340		2650
2341	#if EV_CHILD_ENABLE	2651	#if EV_CHILD_ENABLE
2342	if (ev_is_active (&childev))	2652	if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2343	{	2653	{
2344	ev_ref (EV_A); /* child watcher */	2654	ev_ref (EV_A); /* child watcher */
2345	ev_signal_stop (EV_A_ &childev);	2655	ev_signal_stop (EV_A_ &childev);
2346	}	2656	}
2347	#endif	2657	#endif
…		…
2349	if (ev_is_active (&pipe_w))	2659	if (ev_is_active (&pipe_w))
2350	{	2660	{
2351	/*ev_ref (EV_A);*/	2661	/*ev_ref (EV_A);*/
2352	/*ev_io_stop (EV_A_ &pipe_w);*/	2662	/*ev_io_stop (EV_A_ &pipe_w);*/
2353		2663
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]);	2664	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2362	EV_WIN32_CLOSE_FD (evpipe [1]);	2665	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2363	}
2364	}	2666	}
2365		2667
2366	#if EV_USE_SIGNALFD	2668	#if EV_USE_SIGNALFD
2367	if (ev_is_active (&sigfd_w))	2669	if (ev_is_active (&sigfd_w))
2368	close (sigfd);	2670	close (sigfd);
…		…
2454	#endif	2756	#endif
2455	#if EV_USE_INOTIFY	2757	#if EV_USE_INOTIFY
2456	infy_fork (EV_A);	2758	infy_fork (EV_A);
2457	#endif	2759	#endif
2458		2760
		2761	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2459	if (ev_is_active (&pipe_w))	2762	if (ev_is_active (&pipe_w))
2460	{	2763	{
2461	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2764	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2462		2765
2463	ev_ref (EV_A);	2766	ev_ref (EV_A);
2464	ev_io_stop (EV_A_ &pipe_w);	2767	ev_io_stop (EV_A_ &pipe_w);
2465		2768
2466	#if EV_USE_EVENTFD
2467	if (evfd >= 0)
2468	close (evfd);
2469	#endif
2470
2471	if (evpipe [0] >= 0)	2769	if (evpipe [0] >= 0)
2472	{
2473	EV_WIN32_CLOSE_FD (evpipe [0]);	2770	EV_WIN32_CLOSE_FD (evpipe [0]);
2474	EV_WIN32_CLOSE_FD (evpipe [1]);
2475	}
2476		2771
2477	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2478	evpipe_init (EV_A);	2772	evpipe_init (EV_A);
2479	/* now iterate over everything, in case we missed something */	2773	/* iterate over everything, in case we missed something before */
2480	pipecb (EV_A_ &pipe_w, EV_READ);	2774	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2481	#endif
2482	}	2775	}
		2776	#endif
2483		2777
2484	postfork = 0;	2778	postfork = 0;
2485	}	2779	}
2486		2780
2487	#if EV_MULTIPLICITY	2781	#if EV_MULTIPLICITY
2488		2782
2489	struct ev_loop * ecb_cold	2783	struct ev_loop * ecb_cold
2490	ev_loop_new (unsigned int flags)	2784	ev_loop_new (unsigned int flags) EV_THROW
2491	{	2785	{
2492	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2786	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2493		2787
2494	memset (EV_A, 0, sizeof (struct ev_loop));	2788	memset (EV_A, 0, sizeof (struct ev_loop));
2495	loop_init (EV_A_ flags);	2789	loop_init (EV_A_ flags);
…		…
2539	}	2833	}
2540	#endif	2834	#endif
2541		2835
2542	#if EV_FEATURE_API	2836	#if EV_FEATURE_API
2543	void ecb_cold	2837	void ecb_cold
2544	ev_verify (EV_P)	2838	ev_verify (EV_P) EV_THROW
2545	{	2839	{
2546	#if EV_VERIFY	2840	#if EV_VERIFY
2547	int i;	2841	int i;
2548	WL w;	2842	WL w, w2;
2549		2843
2550	assert (activecnt >= -1);	2844	assert (activecnt >= -1);
2551		2845
2552	assert (fdchangemax >= fdchangecnt);	2846	assert (fdchangemax >= fdchangecnt);
2553	for (i = 0; i < fdchangecnt; ++i)	2847	for (i = 0; i < fdchangecnt; ++i)
2554	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));	2848	assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2555		2849
2556	assert (anfdmax >= 0);	2850	assert (anfdmax >= 0);
2557	for (i = 0; i < anfdmax; ++i)	2851	for (i = 0; i < anfdmax; ++i)
		2852	{
		2853	int j = 0;
		2854
2558	for (w = anfds [i].head; w; w = w->next)	2855	for (w = w2 = anfds [i].head; w; w = w->next)
2559	{	2856	{
2560	verify_watcher (EV_A_ (W)w);	2857	verify_watcher (EV_A_ (W)w);
		2858
		2859	if (j++ & 1)
		2860	{
		2861	assert (("libev: io watcher list contains a loop", w != w2));
		2862	w2 = w2->next;
		2863	}
		2864
2561	assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));	2865	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));	2866	assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2563	}	2867	}
		2868	}
2564		2869
2565	assert (timermax >= timercnt);	2870	assert (timermax >= timercnt);
2566	verify_heap (EV_A_ timers, timercnt);	2871	verify_heap (EV_A_ timers, timercnt);
2567		2872
2568	#if EV_PERIODIC_ENABLE	2873	#if EV_PERIODIC_ENABLE
…		…
2618	#if EV_MULTIPLICITY	2923	#if EV_MULTIPLICITY
2619	struct ev_loop * ecb_cold	2924	struct ev_loop * ecb_cold
2620	#else	2925	#else
2621	int	2926	int
2622	#endif	2927	#endif
2623	ev_default_loop (unsigned int flags)	2928	ev_default_loop (unsigned int flags) EV_THROW
2624	{	2929	{
2625	if (!ev_default_loop_ptr)	2930	if (!ev_default_loop_ptr)
2626	{	2931	{
2627	#if EV_MULTIPLICITY	2932	#if EV_MULTIPLICITY
2628	EV_P = ev_default_loop_ptr = &default_loop_struct;	2933	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2647		2952
2648	return ev_default_loop_ptr;	2953	return ev_default_loop_ptr;
2649	}	2954	}
2650		2955
2651	void	2956	void
2652	ev_loop_fork (EV_P)	2957	ev_loop_fork (EV_P) EV_THROW
2653	{	2958	{
2654	postfork = 1; /* must be in line with ev_default_fork */	2959	postfork = 1;
2655	}	2960	}
2656		2961
2657	/*****************************************************************************/	2962	/*****************************************************************************/
2658		2963
2659	void	2964	void
…		…
2661	{	2966	{
2662	EV_CB_INVOKE ((W)w, revents);	2967	EV_CB_INVOKE ((W)w, revents);
2663	}	2968	}
2664		2969
2665	unsigned int	2970	unsigned int
2666	ev_pending_count (EV_P)	2971	ev_pending_count (EV_P) EV_THROW
2667	{	2972	{
2668	int pri;	2973	int pri;
2669	unsigned int count = 0;	2974	unsigned int count = 0;
2670		2975
2671	for (pri = NUMPRI; pri--; )	2976	for (pri = NUMPRI; pri--; )
…		…
2675	}	2980	}
2676		2981
2677	void noinline	2982	void noinline
2678	ev_invoke_pending (EV_P)	2983	ev_invoke_pending (EV_P)
2679	{	2984	{
2680	int pri;	2985	pendingpri = NUMPRI;
2681		2986
2682	for (pri = NUMPRI; pri--; )	2987	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
		2988	{
		2989	--pendingpri;
		2990
2683	while (pendingcnt [pri])	2991	while (pendingcnt [pendingpri])
2684	{	2992	{
2685	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	2993	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2686		2994
2687	p->w->pending = 0;	2995	p->w->pending = 0;
2688	EV_CB_INVOKE (p->w, p->events);	2996	EV_CB_INVOKE (p->w, p->events);
2689	EV_FREQUENT_CHECK;	2997	EV_FREQUENT_CHECK;
2690	}	2998	}
		2999	}
2691	}	3000	}
2692		3001
2693	#if EV_IDLE_ENABLE	3002	#if EV_IDLE_ENABLE
2694	/* make idle watchers pending. this handles the "call-idle */	3003	/* make idle watchers pending. this handles the "call-idle */
2695	/* only when higher priorities are idle" logic */	3004	/* only when higher priorities are idle" logic */
…		…
2785	{	3094	{
2786	EV_FREQUENT_CHECK;	3095	EV_FREQUENT_CHECK;
2787		3096
2788	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)	3097	while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2789	{	3098	{
2790	int feed_count = 0;
2791
2792	do	3099	do
2793	{	3100	{
2794	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);	3101	ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2795		3102
2796	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/	3103	/*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
…		…
3055	backend_poll (EV_A_ waittime);	3362	backend_poll (EV_A_ waittime);
3056	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3363	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3057		3364
3058	pipe_write_wanted = 0; /* just an optimisation, no fence needed */	3365	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3059		3366
		3367	ECB_MEMORY_FENCE_ACQUIRE;
3060	if (pipe_write_skipped)	3368	if (pipe_write_skipped)
3061	{	3369	{
3062	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3370	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);	3371	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3064	}	3372	}
…		…
3102		3410
3103	return activecnt;	3411	return activecnt;
3104	}	3412	}
3105		3413
3106	void	3414	void
3107	ev_break (EV_P_ int how)	3415	ev_break (EV_P_ int how) EV_THROW
3108	{	3416	{
3109	loop_done = how;	3417	loop_done = how;
3110	}	3418	}
3111		3419
3112	void	3420	void
3113	ev_ref (EV_P)	3421	ev_ref (EV_P) EV_THROW
3114	{	3422	{
3115	++activecnt;	3423	++activecnt;
3116	}	3424	}
3117		3425
3118	void	3426	void
3119	ev_unref (EV_P)	3427	ev_unref (EV_P) EV_THROW
3120	{	3428	{
3121	--activecnt;	3429	--activecnt;
3122	}	3430	}
3123		3431
3124	void	3432	void
3125	ev_now_update (EV_P)	3433	ev_now_update (EV_P) EV_THROW
3126	{	3434	{
3127	time_update (EV_A_ 1e100);	3435	time_update (EV_A_ 1e100);
3128	}	3436	}
3129		3437
3130	void	3438	void
3131	ev_suspend (EV_P)	3439	ev_suspend (EV_P) EV_THROW
3132	{	3440	{
3133	ev_now_update (EV_A);	3441	ev_now_update (EV_A);
3134	}	3442	}
3135		3443
3136	void	3444	void
3137	ev_resume (EV_P)	3445	ev_resume (EV_P) EV_THROW
3138	{	3446	{
3139	ev_tstamp mn_prev = mn_now;	3447	ev_tstamp mn_prev = mn_now;
3140		3448
3141	ev_now_update (EV_A);	3449	ev_now_update (EV_A);
3142	timers_reschedule (EV_A_ mn_now - mn_prev);	3450	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3181	w->pending = 0;	3489	w->pending = 0;
3182	}	3490	}
3183	}	3491	}
3184		3492
3185	int	3493	int
3186	ev_clear_pending (EV_P_ void *w)	3494	ev_clear_pending (EV_P_ void *w) EV_THROW
3187	{	3495	{
3188	W w_ = (W)w;	3496	W w_ = (W)w;
3189	int pending = w_->pending;	3497	int pending = w_->pending;
3190		3498
3191	if (expect_true (pending))	3499	if (expect_true (pending))
…		…
3224	}	3532	}
3225		3533
3226	/*****************************************************************************/	3534	/*****************************************************************************/
3227		3535
3228	void noinline	3536	void noinline
3229	ev_io_start (EV_P_ ev_io *w)	3537	ev_io_start (EV_P_ ev_io *w) EV_THROW
3230	{	3538	{
3231	int fd = w->fd;	3539	int fd = w->fd;
3232		3540
3233	if (expect_false (ev_is_active (w)))	3541	if (expect_false (ev_is_active (w)))
3234	return;	3542	return;
…		…
3240		3548
3241	ev_start (EV_A_ (W)w, 1);	3549	ev_start (EV_A_ (W)w, 1);
3242	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);	3550	array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3243	wlist_add (&anfds[fd].head, (WL)w);	3551	wlist_add (&anfds[fd].head, (WL)w);
3244		3552
		3553	/* common bug, apparently */
		3554	assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
		3555
3245	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);	3556	fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3246	w->events &= ~EV__IOFDSET;	3557	w->events &= ~EV__IOFDSET;
3247		3558
3248	EV_FREQUENT_CHECK;	3559	EV_FREQUENT_CHECK;
3249	}	3560	}
3250		3561
3251	void noinline	3562	void noinline
3252	ev_io_stop (EV_P_ ev_io *w)	3563	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3253	{	3564	{
3254	clear_pending (EV_A_ (W)w);	3565	clear_pending (EV_A_ (W)w);
3255	if (expect_false (!ev_is_active (w)))	3566	if (expect_false (!ev_is_active (w)))
3256	return;	3567	return;
3257		3568
…		…
3266		3577
3267	EV_FREQUENT_CHECK;	3578	EV_FREQUENT_CHECK;
3268	}	3579	}
3269		3580
3270	void noinline	3581	void noinline
3271	ev_timer_start (EV_P_ ev_timer *w)	3582	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3272	{	3583	{
3273	if (expect_false (ev_is_active (w)))	3584	if (expect_false (ev_is_active (w)))
3274	return;	3585	return;
3275		3586
3276	ev_at (w) += mn_now;	3587	ev_at (w) += mn_now;
…		…
3290		3601
3291	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3602	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3292	}	3603	}
3293		3604
3294	void noinline	3605	void noinline
3295	ev_timer_stop (EV_P_ ev_timer *w)	3606	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3296	{	3607	{
3297	clear_pending (EV_A_ (W)w);	3608	clear_pending (EV_A_ (W)w);
3298	if (expect_false (!ev_is_active (w)))	3609	if (expect_false (!ev_is_active (w)))
3299	return;	3610	return;
3300		3611
…		…
3320		3631
3321	EV_FREQUENT_CHECK;	3632	EV_FREQUENT_CHECK;
3322	}	3633	}
3323		3634
3324	void noinline	3635	void noinline
3325	ev_timer_again (EV_P_ ev_timer *w)	3636	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3326	{	3637	{
3327	EV_FREQUENT_CHECK;	3638	EV_FREQUENT_CHECK;
3328		3639
3329	clear_pending (EV_A_ (W)w);	3640	clear_pending (EV_A_ (W)w);
3330		3641
…		…
3347		3658
3348	EV_FREQUENT_CHECK;	3659	EV_FREQUENT_CHECK;
3349	}	3660	}
3350		3661
3351	ev_tstamp	3662	ev_tstamp
3352	ev_timer_remaining (EV_P_ ev_timer *w)	3663	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3353	{	3664	{
3354	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3665	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3355	}	3666	}
3356		3667
3357	#if EV_PERIODIC_ENABLE	3668	#if EV_PERIODIC_ENABLE
3358	void noinline	3669	void noinline
3359	ev_periodic_start (EV_P_ ev_periodic *w)	3670	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3360	{	3671	{
3361	if (expect_false (ev_is_active (w)))	3672	if (expect_false (ev_is_active (w)))
3362	return;	3673	return;
3363		3674
3364	if (w->reschedule_cb)	3675	if (w->reschedule_cb)
…		…
3384		3695
3385	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	3696	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3386	}	3697	}
3387		3698
3388	void noinline	3699	void noinline
3389	ev_periodic_stop (EV_P_ ev_periodic *w)	3700	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3390	{	3701	{
3391	clear_pending (EV_A_ (W)w);	3702	clear_pending (EV_A_ (W)w);
3392	if (expect_false (!ev_is_active (w)))	3703	if (expect_false (!ev_is_active (w)))
3393	return;	3704	return;
3394		3705
…		…
3412		3723
3413	EV_FREQUENT_CHECK;	3724	EV_FREQUENT_CHECK;
3414	}	3725	}
3415		3726
3416	void noinline	3727	void noinline
3417	ev_periodic_again (EV_P_ ev_periodic *w)	3728	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3418	{	3729	{
3419	/* TODO: use adjustheap and recalculation */	3730	/* TODO: use adjustheap and recalculation */
3420	ev_periodic_stop (EV_A_ w);	3731	ev_periodic_stop (EV_A_ w);
3421	ev_periodic_start (EV_A_ w);	3732	ev_periodic_start (EV_A_ w);
3422	}	3733	}
…		…
3427	#endif	3738	#endif
3428		3739
3429	#if EV_SIGNAL_ENABLE	3740	#if EV_SIGNAL_ENABLE
3430		3741
3431	void noinline	3742	void noinline
3432	ev_signal_start (EV_P_ ev_signal *w)	3743	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3433	{	3744	{
3434	if (expect_false (ev_is_active (w)))	3745	if (expect_false (ev_is_active (w)))
3435	return;	3746	return;
3436		3747
3437	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	3748	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3439	#if EV_MULTIPLICITY	3750	#if EV_MULTIPLICITY
3440	assert (("libev: a signal must not be attached to two different loops",	3751	assert (("libev: a signal must not be attached to two different loops",
3441	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));	3752	!signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3442		3753
3443	signals [w->signum - 1].loop = EV_A;	3754	signals [w->signum - 1].loop = EV_A;
		3755	ECB_MEMORY_FENCE_RELEASE;
3444	#endif	3756	#endif
3445		3757
3446	EV_FREQUENT_CHECK;	3758	EV_FREQUENT_CHECK;
3447		3759
3448	#if EV_USE_SIGNALFD	3760	#if EV_USE_SIGNALFD
…		…
3508		3820
3509	EV_FREQUENT_CHECK;	3821	EV_FREQUENT_CHECK;
3510	}	3822	}
3511		3823
3512	void noinline	3824	void noinline
3513	ev_signal_stop (EV_P_ ev_signal *w)	3825	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3514	{	3826	{
3515	clear_pending (EV_A_ (W)w);	3827	clear_pending (EV_A_ (W)w);
3516	if (expect_false (!ev_is_active (w)))	3828	if (expect_false (!ev_is_active (w)))
3517	return;	3829	return;
3518		3830
…		…
3549	#endif	3861	#endif
3550		3862
3551	#if EV_CHILD_ENABLE	3863	#if EV_CHILD_ENABLE
3552		3864
3553	void	3865	void
3554	ev_child_start (EV_P_ ev_child *w)	3866	ev_child_start (EV_P_ ev_child *w) EV_THROW
3555	{	3867	{
3556	#if EV_MULTIPLICITY	3868	#if EV_MULTIPLICITY
3557	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	3869	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3558	#endif	3870	#endif
3559	if (expect_false (ev_is_active (w)))	3871	if (expect_false (ev_is_active (w)))
…		…
3566		3878
3567	EV_FREQUENT_CHECK;	3879	EV_FREQUENT_CHECK;
3568	}	3880	}
3569		3881
3570	void	3882	void
3571	ev_child_stop (EV_P_ ev_child *w)	3883	ev_child_stop (EV_P_ ev_child *w) EV_THROW
3572	{	3884	{
3573	clear_pending (EV_A_ (W)w);	3885	clear_pending (EV_A_ (W)w);
3574	if (expect_false (!ev_is_active (w)))	3886	if (expect_false (!ev_is_active (w)))
3575	return;	3887	return;
3576		3888
…		…
3603	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	3915	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3604		3916
3605	static void noinline	3917	static void noinline
3606	infy_add (EV_P_ ev_stat *w)	3918	infy_add (EV_P_ ev_stat *w)
3607	{	3919	{
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);	3920	w->wd = inotify_add_watch (fs_fd, w->path,
		3921	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
		3922	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
		3923	| IN_DONT_FOLLOW | IN_MASK_ADD);
3609		3924
3610	if (w->wd >= 0)	3925	if (w->wd >= 0)
3611	{	3926	{
3612	struct statfs sfs;	3927	struct statfs sfs;
3613		3928
…		…
3617		3932
3618	if (!fs_2625)	3933	if (!fs_2625)
3619	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	3934	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3620	else if (!statfs (w->path, &sfs)	3935	else if (!statfs (w->path, &sfs)
3621	&& (sfs.f_type == 0x1373 /* devfs */	3936	&& (sfs.f_type == 0x1373 /* devfs */
		3937	|| sfs.f_type == 0x4006 /* fat */
		3938	|| sfs.f_type == 0x4d44 /* msdos */
3622	|| sfs.f_type == 0xEF53 /* ext2/3 */	3939	|| sfs.f_type == 0xEF53 /* ext2/3 */
		3940	|| sfs.f_type == 0x72b6 /* jffs2 */
		3941	|| sfs.f_type == 0x858458f6 /* ramfs */
		3942	|| sfs.f_type == 0x5346544e /* ntfs */
3623	|| sfs.f_type == 0x3153464a /* jfs */	3943	|| sfs.f_type == 0x3153464a /* jfs */
		3944	|| sfs.f_type == 0x9123683e /* btrfs */
3624	|| sfs.f_type == 0x52654973 /* reiser3 */	3945	|| sfs.f_type == 0x52654973 /* reiser3 */
3625	|| sfs.f_type == 0x01021994 /* tempfs */	3946	|| sfs.f_type == 0x01021994 /* tmpfs */
3626	|| sfs.f_type == 0x58465342 /* xfs */))	3947	|| sfs.f_type == 0x58465342 /* xfs */))
3627	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	3948	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3628	else	3949	else
3629	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	3950	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3630	}	3951	}
…		…
3828	#else	4149	#else
3829	# define EV_LSTAT(p,b) lstat (p, b)	4150	# define EV_LSTAT(p,b) lstat (p, b)
3830	#endif	4151	#endif
3831		4152
3832	void	4153	void
3833	ev_stat_stat (EV_P_ ev_stat *w)	4154	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3834	{	4155	{
3835	if (lstat (w->path, &w->attr) < 0)	4156	if (lstat (w->path, &w->attr) < 0)
3836	w->attr.st_nlink = 0;	4157	w->attr.st_nlink = 0;
3837	else if (!w->attr.st_nlink)	4158	else if (!w->attr.st_nlink)
3838	w->attr.st_nlink = 1;	4159	w->attr.st_nlink = 1;
…		…
3877	ev_feed_event (EV_A_ w, EV_STAT);	4198	ev_feed_event (EV_A_ w, EV_STAT);
3878	}	4199	}
3879	}	4200	}
3880		4201
3881	void	4202	void
3882	ev_stat_start (EV_P_ ev_stat *w)	4203	ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3883	{	4204	{
3884	if (expect_false (ev_is_active (w)))	4205	if (expect_false (ev_is_active (w)))
3885	return;	4206	return;
3886		4207
3887	ev_stat_stat (EV_A_ w);	4208	ev_stat_stat (EV_A_ w);
…		…
3908		4229
3909	EV_FREQUENT_CHECK;	4230	EV_FREQUENT_CHECK;
3910	}	4231	}
3911		4232
3912	void	4233	void
3913	ev_stat_stop (EV_P_ ev_stat *w)	4234	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3914	{	4235	{
3915	clear_pending (EV_A_ (W)w);	4236	clear_pending (EV_A_ (W)w);
3916	if (expect_false (!ev_is_active (w)))	4237	if (expect_false (!ev_is_active (w)))
3917	return;	4238	return;
3918		4239
…		…
3934	}	4255	}
3935	#endif	4256	#endif
3936		4257
3937	#if EV_IDLE_ENABLE	4258	#if EV_IDLE_ENABLE
3938	void	4259	void
3939	ev_idle_start (EV_P_ ev_idle *w)	4260	ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3940	{	4261	{
3941	if (expect_false (ev_is_active (w)))	4262	if (expect_false (ev_is_active (w)))
3942	return;	4263	return;
3943		4264
3944	pri_adjust (EV_A_ (W)w);	4265	pri_adjust (EV_A_ (W)w);
…		…
3957		4278
3958	EV_FREQUENT_CHECK;	4279	EV_FREQUENT_CHECK;
3959	}	4280	}
3960		4281
3961	void	4282	void
3962	ev_idle_stop (EV_P_ ev_idle *w)	4283	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3963	{	4284	{
3964	clear_pending (EV_A_ (W)w);	4285	clear_pending (EV_A_ (W)w);
3965	if (expect_false (!ev_is_active (w)))	4286	if (expect_false (!ev_is_active (w)))
3966	return;	4287	return;
3967		4288
…		…
3981	}	4302	}
3982	#endif	4303	#endif
3983		4304
3984	#if EV_PREPARE_ENABLE	4305	#if EV_PREPARE_ENABLE
3985	void	4306	void
3986	ev_prepare_start (EV_P_ ev_prepare *w)	4307	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3987	{	4308	{
3988	if (expect_false (ev_is_active (w)))	4309	if (expect_false (ev_is_active (w)))
3989	return;	4310	return;
3990		4311
3991	EV_FREQUENT_CHECK;	4312	EV_FREQUENT_CHECK;
…		…
3996		4317
3997	EV_FREQUENT_CHECK;	4318	EV_FREQUENT_CHECK;
3998	}	4319	}
3999		4320
4000	void	4321	void
4001	ev_prepare_stop (EV_P_ ev_prepare *w)	4322	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4002	{	4323	{
4003	clear_pending (EV_A_ (W)w);	4324	clear_pending (EV_A_ (W)w);
4004	if (expect_false (!ev_is_active (w)))	4325	if (expect_false (!ev_is_active (w)))
4005	return;	4326	return;
4006		4327
…		…
4019	}	4340	}
4020	#endif	4341	#endif
4021		4342
4022	#if EV_CHECK_ENABLE	4343	#if EV_CHECK_ENABLE
4023	void	4344	void
4024	ev_check_start (EV_P_ ev_check *w)	4345	ev_check_start (EV_P_ ev_check *w) EV_THROW
4025	{	4346	{
4026	if (expect_false (ev_is_active (w)))	4347	if (expect_false (ev_is_active (w)))
4027	return;	4348	return;
4028		4349
4029	EV_FREQUENT_CHECK;	4350	EV_FREQUENT_CHECK;
…		…
4034		4355
4035	EV_FREQUENT_CHECK;	4356	EV_FREQUENT_CHECK;
4036	}	4357	}
4037		4358
4038	void	4359	void
4039	ev_check_stop (EV_P_ ev_check *w)	4360	ev_check_stop (EV_P_ ev_check *w) EV_THROW
4040	{	4361	{
4041	clear_pending (EV_A_ (W)w);	4362	clear_pending (EV_A_ (W)w);
4042	if (expect_false (!ev_is_active (w)))	4363	if (expect_false (!ev_is_active (w)))
4043	return;	4364	return;
4044		4365
…		…
4057	}	4378	}
4058	#endif	4379	#endif
4059		4380
4060	#if EV_EMBED_ENABLE	4381	#if EV_EMBED_ENABLE
4061	void noinline	4382	void noinline
4062	ev_embed_sweep (EV_P_ ev_embed *w)	4383	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4063	{	4384	{
4064	ev_run (w->other, EVRUN_NOWAIT);	4385	ev_run (w->other, EVRUN_NOWAIT);
4065	}	4386	}
4066		4387
4067	static void	4388	static void
…		…
4115	ev_idle_stop (EV_A_ idle);	4436	ev_idle_stop (EV_A_ idle);
4116	}	4437	}
4117	#endif	4438	#endif
4118		4439
4119	void	4440	void
4120	ev_embed_start (EV_P_ ev_embed *w)	4441	ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4121	{	4442	{
4122	if (expect_false (ev_is_active (w)))	4443	if (expect_false (ev_is_active (w)))
4123	return;	4444	return;
4124		4445
4125	{	4446	{
…		…
4146		4467
4147	EV_FREQUENT_CHECK;	4468	EV_FREQUENT_CHECK;
4148	}	4469	}
4149		4470
4150	void	4471	void
4151	ev_embed_stop (EV_P_ ev_embed *w)	4472	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4152	{	4473	{
4153	clear_pending (EV_A_ (W)w);	4474	clear_pending (EV_A_ (W)w);
4154	if (expect_false (!ev_is_active (w)))	4475	if (expect_false (!ev_is_active (w)))
4155	return;	4476	return;
4156		4477
…		…
4166	}	4487	}
4167	#endif	4488	#endif
4168		4489
4169	#if EV_FORK_ENABLE	4490	#if EV_FORK_ENABLE
4170	void	4491	void
4171	ev_fork_start (EV_P_ ev_fork *w)	4492	ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4172	{	4493	{
4173	if (expect_false (ev_is_active (w)))	4494	if (expect_false (ev_is_active (w)))
4174	return;	4495	return;
4175		4496
4176	EV_FREQUENT_CHECK;	4497	EV_FREQUENT_CHECK;
…		…
4181		4502
4182	EV_FREQUENT_CHECK;	4503	EV_FREQUENT_CHECK;
4183	}	4504	}
4184		4505
4185	void	4506	void
4186	ev_fork_stop (EV_P_ ev_fork *w)	4507	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4187	{	4508	{
4188	clear_pending (EV_A_ (W)w);	4509	clear_pending (EV_A_ (W)w);
4189	if (expect_false (!ev_is_active (w)))	4510	if (expect_false (!ev_is_active (w)))
4190	return;	4511	return;
4191		4512
…		…
4204	}	4525	}
4205	#endif	4526	#endif
4206		4527
4207	#if EV_CLEANUP_ENABLE	4528	#if EV_CLEANUP_ENABLE
4208	void	4529	void
4209	ev_cleanup_start (EV_P_ ev_cleanup *w)	4530	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4210	{	4531	{
4211	if (expect_false (ev_is_active (w)))	4532	if (expect_false (ev_is_active (w)))
4212	return;	4533	return;
4213		4534
4214	EV_FREQUENT_CHECK;	4535	EV_FREQUENT_CHECK;
…		…
4221	ev_unref (EV_A);	4542	ev_unref (EV_A);
4222	EV_FREQUENT_CHECK;	4543	EV_FREQUENT_CHECK;
4223	}	4544	}
4224		4545
4225	void	4546	void
4226	ev_cleanup_stop (EV_P_ ev_cleanup *w)	4547	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4227	{	4548	{
4228	clear_pending (EV_A_ (W)w);	4549	clear_pending (EV_A_ (W)w);
4229	if (expect_false (!ev_is_active (w)))	4550	if (expect_false (!ev_is_active (w)))
4230	return;	4551	return;
4231		4552
…		…
4245	}	4566	}
4246	#endif	4567	#endif
4247		4568
4248	#if EV_ASYNC_ENABLE	4569	#if EV_ASYNC_ENABLE
4249	void	4570	void
4250	ev_async_start (EV_P_ ev_async *w)	4571	ev_async_start (EV_P_ ev_async *w) EV_THROW
4251	{	4572	{
4252	if (expect_false (ev_is_active (w)))	4573	if (expect_false (ev_is_active (w)))
4253	return;	4574	return;
4254		4575
4255	w->sent = 0;	4576	w->sent = 0;
…		…
4264		4585
4265	EV_FREQUENT_CHECK;	4586	EV_FREQUENT_CHECK;
4266	}	4587	}
4267		4588
4268	void	4589	void
4269	ev_async_stop (EV_P_ ev_async *w)	4590	ev_async_stop (EV_P_ ev_async *w) EV_THROW
4270	{	4591	{
4271	clear_pending (EV_A_ (W)w);	4592	clear_pending (EV_A_ (W)w);
4272	if (expect_false (!ev_is_active (w)))	4593	if (expect_false (!ev_is_active (w)))
4273	return;	4594	return;
4274		4595
…		…
4285		4606
4286	EV_FREQUENT_CHECK;	4607	EV_FREQUENT_CHECK;
4287	}	4608	}
4288		4609
4289	void	4610	void
4290	ev_async_send (EV_P_ ev_async *w)	4611	ev_async_send (EV_P_ ev_async *w) EV_THROW
4291	{	4612	{
4292	w->sent = 1;	4613	w->sent = 1;
4293	evpipe_write (EV_A_ &async_pending);	4614	evpipe_write (EV_A_ &async_pending);
4294	}	4615	}
4295	#endif	4616	#endif
…		…
4332		4653
4333	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4654	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4334	}	4655	}
4335		4656
4336	void	4657	void
4337	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	4658	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4338	{	4659	{
4339	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	4660	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4340		4661
4341	if (expect_false (!once))	4662	if (expect_false (!once))
4342	{	4663	{
…		…
4364		4685
4365	/*****************************************************************************/	4686	/*****************************************************************************/
4366		4687
4367	#if EV_WALK_ENABLE	4688	#if EV_WALK_ENABLE
4368	void ecb_cold	4689	void ecb_cold
4369	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))	4690	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4370	{	4691	{
4371	int i, j;	4692	int i, j;
4372	ev_watcher_list *wl, *wn;	4693	ev_watcher_list *wl, *wn;
4373		4694
4374	if (types & (EV_IO | EV_EMBED))	4695	if (types & (EV_IO | EV_EMBED))

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