[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.378 by root, Mon Jun 13 09:52:36 2011 UTC vs.
Revision 1.412 by root, Wed Feb 22 01:53:00 2012 UTC

…		…
183	# include EV_H	183	# include EV_H
184	#else	184	#else
185	# include "ev.h"	185	# include "ev.h"
186	#endif	186	#endif
187		187
188	EV_CPP(extern "C" {)	188	#if EV_NO_THREADS
		189	# undef EV_NO_SMP
		190	# define EV_NO_SMP 1
		191	# undef ECB_NO_THREADS
		192	# define ECB_NO_THREADS 1
		193	#endif
		194	#if EV_NO_SMP
		195	# undef EV_NO_SMP
		196	# define ECB_NO_SMP 1
		197	#endif
189		198
190	#ifndef _WIN32	199	#ifndef _WIN32
191	# include <sys/time.h>	200	# include <sys/time.h>
192	# include <sys/wait.h>	201	# include <sys/wait.h>
193	# include <unistd.h>	202	# include <unistd.h>
…		…
464	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */	473	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465		474
466	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)	475	#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)	476	#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468		477
		478	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
		479	/* ECB.H BEGIN */
		480	/*
		481	* libecb - http://software.schmorp.de/pkg/libecb
		482	*
		483	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
		484	* Copyright (©) 2011 Emanuele Giaquinta
		485	* All rights reserved.
		486	*
		487	* Redistribution and use in source and binary forms, with or without modifica-
		488	* tion, are permitted provided that the following conditions are met:
		489	*
		490	* 1. Redistributions of source code must retain the above copyright notice,
		491	* this list of conditions and the following disclaimer.
		492	*
		493	* 2. Redistributions in binary form must reproduce the above copyright
		494	* notice, this list of conditions and the following disclaimer in the
		495	* documentation and/or other materials provided with the distribution.
		496	*
		497	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		498	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		499	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		500	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		501	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		502	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		503	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		504	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		505	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		506	* OF THE POSSIBILITY OF SUCH DAMAGE.
		507	*/
		508
		509	#ifndef ECB_H
		510	#define ECB_H
		511
		512	#ifdef _WIN32
		513	typedef signed char int8_t;
		514	typedef unsigned char uint8_t;
		515	typedef signed short int16_t;
		516	typedef unsigned short uint16_t;
		517	typedef signed int int32_t;
		518	typedef unsigned int uint32_t;
469	#if __GNUC__ >= 4	519	#if __GNUC__
470	# define expect(expr,value) __builtin_expect ((expr),(value))	520	typedef signed long long int64_t;
471	# define noinline __attribute__ ((noinline))	521	typedef unsigned long long uint64_t;
		522	#else /* _MSC_VER \|\| __BORLANDC__ */
		523	typedef signed __int64 int64_t;
		524	typedef unsigned __int64 uint64_t;
		525	#endif
472	#else	526	#else
473	# define expect(expr,value) (expr)	527	#include <inttypes.h>
474	# define noinline
475	# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
476	# define inline
477	# endif	528	#endif
		529
		530	/* many compilers define _GNUC_ to some versions but then only implement
		531	* what their idiot authors think are the "more important" extensions,
		532	* causing enormous grief in return for some better fake benchmark numbers.
		533	* or so.
		534	* we try to detect these and simply assume they are not gcc - if they have
		535	* an issue with that they should have done it right in the first place.
		536	*/
		537	#ifndef ECB_GCC_VERSION
		538	#if !defined(__GNUC_MINOR__) \|\| defined(__INTEL_COMPILER) \|\| defined(__SUNPRO_C) \|\| defined(__SUNPRO_CC) \|\| defined(__llvm__) \|\| defined(__clang__)
		539	#define ECB_GCC_VERSION(major,minor) 0
		540	#else
		541	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
478	#endif	542	#endif
		543	#endif
479		544
		545	/*****************************************************************************/
		546
		547	/* 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 */
		549
		550	#if ECB_NO_THREADS
		551	# define ECB_NO_SMP 1
		552	#endif
		553
		554	#if ECB_NO_THREADS \|\| ECB_NO_SMP
		555	#define ECB_MEMORY_FENCE do { } while (0)
		556	#endif
		557
		558	#ifndef ECB_MEMORY_FENCE
		559	#if ECB_GCC_VERSION(2,5) \|\| defined(__INTEL_COMPILER) \|\| (__llvm__ && __GNUC__) \|\| __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110
		560	#if __i386 \|\| __i386__
		561	#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 */
		563	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
		564	#elif __amd64 \|\| __amd64__ \|\| __x86_64 \|\| __x86_64__
		565	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		566	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
		567	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
		568	#elif __powerpc__ \|\| __ppc__ \|\| __powerpc64__ \|\| __ppc64__
		569	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		570	#elif defined(__ARM_ARCH_6__ ) \|\| defined(__ARM_ARCH_6J__ ) \
		571	\|\| 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")
		573	#elif defined(__ARM_ARCH_7__ ) \|\| defined(__ARM_ARCH_7A__ ) \
		574	\|\| defined(__ARM_ARCH_7M__) \|\| defined(__ARM_ARCH_7R__ )
		575	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		576	#elif __sparc \|\| __sparc__
		577	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad \| #StoreStore \| #StoreLoad \| " : : : "memory")
		578	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad" : : : "memory")
		579	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore \| #StoreStore")
		580	#elif defined(__s390__) \|\| defined(__s390x__)
		581	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		582	#elif defined(__mips__)
		583	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		584	#endif
		585	#endif
		586	#endif
		587
		588	#ifndef ECB_MEMORY_FENCE
		589	#if ECB_GCC_VERSION(4,4) \|\| defined(__INTEL_COMPILER) \|\| defined(__clang__)
		590	#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 */
		594	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		595	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		596	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		597	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		598	#elif defined(_WIN32)
		599	#include <WinNT.h>
		600	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		601	#elif __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110
		602	#include <mbarrier.h>
		603	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		604	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		605	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		606	#endif
		607	#endif
		608
		609	#ifndef ECB_MEMORY_FENCE
		610	#if !ECB_AVOID_PTHREADS
		611	/*
		612	* if you get undefined symbol references to pthread_mutex_lock,
		613	* or failure to find pthread.h, then you should implement
		614	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		615	* OR provide pthread.h and link against the posix thread library
		616	* of your system.
		617	*/
		618	#include <pthread.h>
		619	#define ECB_NEEDS_PTHREADS 1
		620	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		621
		622	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		623	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		624	#endif
		625	#endif
		626
		627	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
		628	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		629	#endif
		630
		631	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
		632	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		633	#endif
		634
		635	/*****************************************************************************/
		636
		637	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		638
		639	#if __cplusplus
		640	#define ecb_inline static inline
		641	#elif ECB_GCC_VERSION(2,5)
		642	#define ecb_inline static __inline__
		643	#elif ECB_C99
		644	#define ecb_inline static inline
		645	#else
		646	#define ecb_inline static
		647	#endif
		648
		649	#if ECB_GCC_VERSION(3,3)
		650	#define ecb_restrict __restrict__
		651	#elif ECB_C99
		652	#define ecb_restrict restrict
		653	#else
		654	#define ecb_restrict
		655	#endif
		656
		657	typedef int ecb_bool;
		658
		659	#define ECB_CONCAT_(a, b) a ## b
		660	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		661	#define ECB_STRINGIFY_(a) # a
		662	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		663
		664	#define ecb_function_ ecb_inline
		665
		666	#if ECB_GCC_VERSION(3,1)
		667	#define ecb_attribute(attrlist) __attribute__(attrlist)
		668	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		669	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		670	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		671	#else
		672	#define ecb_attribute(attrlist)
		673	#define ecb_is_constant(expr) 0
		674	#define ecb_expect(expr,value) (expr)
		675	#define ecb_prefetch(addr,rw,locality)
		676	#endif
		677
		678	/* no emulation for ecb_decltype */
		679	#if ECB_GCC_VERSION(4,5)
		680	#define ecb_decltype(x) __decltype(x)
		681	#elif ECB_GCC_VERSION(3,0)
		682	#define ecb_decltype(x) __typeof(x)
		683	#endif
		684
		685	#define ecb_noinline ecb_attribute ((__noinline__))
		686	#define ecb_noreturn ecb_attribute ((__noreturn__))
		687	#define ecb_unused ecb_attribute ((__unused__))
		688	#define ecb_const ecb_attribute ((__const__))
		689	#define ecb_pure ecb_attribute ((__pure__))
		690
		691	#if ECB_GCC_VERSION(4,3)
		692	#define ecb_artificial ecb_attribute ((__artificial__))
		693	#define ecb_hot ecb_attribute ((__hot__))
		694	#define ecb_cold ecb_attribute ((__cold__))
		695	#else
		696	#define ecb_artificial
		697	#define ecb_hot
		698	#define ecb_cold
		699	#endif
		700
		701	/* put around conditional expressions if you are very sure that the */
		702	/* expression is mostly true or mostly false. note that these return */
		703	/* booleans, not the expression. */
480	#define expect_false(expr) expect ((expr) != 0, 0)	704	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481	#define expect_true(expr) expect ((expr) != 0, 1)	705	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		706	/* for compatibility to the rest of the world */
		707	#define ecb_likely(expr) ecb_expect_true (expr)
		708	#define ecb_unlikely(expr) ecb_expect_false (expr)
		709
		710	/* count trailing zero bits and count # of one bits */
		711	#if ECB_GCC_VERSION(3,4)
		712	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		713	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		714	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		715	#define ecb_ctz32(x) __builtin_ctz (x)
		716	#define ecb_ctz64(x) __builtin_ctzll (x)
		717	#define ecb_popcount32(x) __builtin_popcount (x)
		718	/* no popcountll */
		719	#else
		720	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		721	ecb_function_ int
		722	ecb_ctz32 (uint32_t x)
		723	{
		724	int r = 0;
		725
		726	x &= ~x + 1; /* this isolates the lowest bit */
		727
		728	#if ECB_branchless_on_i386
		729	r += !!(x & 0xaaaaaaaa) << 0;
		730	r += !!(x & 0xcccccccc) << 1;
		731	r += !!(x & 0xf0f0f0f0) << 2;
		732	r += !!(x & 0xff00ff00) << 3;
		733	r += !!(x & 0xffff0000) << 4;
		734	#else
		735	if (x & 0xaaaaaaaa) r += 1;
		736	if (x & 0xcccccccc) r += 2;
		737	if (x & 0xf0f0f0f0) r += 4;
		738	if (x & 0xff00ff00) r += 8;
		739	if (x & 0xffff0000) r += 16;
		740	#endif
		741
		742	return r;
		743	}
		744
		745	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		746	ecb_function_ int
		747	ecb_ctz64 (uint64_t x)
		748	{
		749	int shift = x & 0xffffffffU ? 0 : 32;
		750	return ecb_ctz32 (x >> shift) + shift;
		751	}
		752
		753	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		754	ecb_function_ int
		755	ecb_popcount32 (uint32_t x)
		756	{
		757	x -= (x >> 1) & 0x55555555;
		758	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		759	x = ((x >> 4) + x) & 0x0f0f0f0f;
		760	x *= 0x01010101;
		761
		762	return x >> 24;
		763	}
		764
		765	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		766	ecb_function_ int ecb_ld32 (uint32_t x)
		767	{
		768	int r = 0;
		769
		770	if (x >> 16) { x >>= 16; r += 16; }
		771	if (x >> 8) { x >>= 8; r += 8; }
		772	if (x >> 4) { x >>= 4; r += 4; }
		773	if (x >> 2) { x >>= 2; r += 2; }
		774	if (x >> 1) { r += 1; }
		775
		776	return r;
		777	}
		778
		779	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		780	ecb_function_ int ecb_ld64 (uint64_t x)
		781	{
		782	int r = 0;
		783
		784	if (x >> 32) { x >>= 32; r += 32; }
		785
		786	return r + ecb_ld32 (x);
		787	}
		788	#endif
		789
		790	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		791	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		792	{
		793	return ( (x * 0x0802U & 0x22110U)
		794	\| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		795	}
		796
		797	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		798	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		799	{
		800	x = ((x >> 1) & 0x5555) \| ((x & 0x5555) << 1);
		801	x = ((x >> 2) & 0x3333) \| ((x & 0x3333) << 2);
		802	x = ((x >> 4) & 0x0f0f) \| ((x & 0x0f0f) << 4);
		803	x = ( x >> 8 ) \| ( x << 8);
		804
		805	return x;
		806	}
		807
		808	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		809	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		810	{
		811	x = ((x >> 1) & 0x55555555) \| ((x & 0x55555555) << 1);
		812	x = ((x >> 2) & 0x33333333) \| ((x & 0x33333333) << 2);
		813	x = ((x >> 4) & 0x0f0f0f0f) \| ((x & 0x0f0f0f0f) << 4);
		814	x = ((x >> 8) & 0x00ff00ff) \| ((x & 0x00ff00ff) << 8);
		815	x = ( x >> 16 ) \| ( x << 16);
		816
		817	return x;
		818	}
		819
		820	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		821	/* so for this version we are lazy */
		822	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		823	ecb_function_ int
		824	ecb_popcount64 (uint64_t x)
		825	{
		826	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		827	}
		828
		829	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		830	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		831	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		832	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		833	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		834	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		835	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		836	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		837
		838	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }
		839	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }
		840	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }
		841	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }
		842	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }
		843	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }
		844	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }
		845	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }
		846
		847	#if ECB_GCC_VERSION(4,3)
		848	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		849	#define ecb_bswap32(x) __builtin_bswap32 (x)
		850	#define ecb_bswap64(x) __builtin_bswap64 (x)
		851	#else
		852	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		853	ecb_function_ uint16_t
		854	ecb_bswap16 (uint16_t x)
		855	{
		856	return ecb_rotl16 (x, 8);
		857	}
		858
		859	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		860	ecb_function_ uint32_t
		861	ecb_bswap32 (uint32_t x)
		862	{
		863	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);
		864	}
		865
		866	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		867	ecb_function_ uint64_t
		868	ecb_bswap64 (uint64_t x)
		869	{
		870	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);
		871	}
		872	#endif
		873
		874	#if ECB_GCC_VERSION(4,5)
		875	#define ecb_unreachable() __builtin_unreachable ()
		876	#else
		877	/* this seems to work fine, but gcc always emits a warning for it :/ */
		878	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		879	ecb_inline void ecb_unreachable (void) { }
		880	#endif
		881
		882	/* try to tell the compiler that some condition is definitely true */
		883	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
		884
		885	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		886	ecb_inline unsigned char
		887	ecb_byteorder_helper (void)
		888	{
		889	const uint32_t u = 0x11223344;
		890	return (unsigned char )&u;
		891	}
		892
		893	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		894	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		895	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		896	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		897
		898	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99
		899	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		900	#else
		901	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		902	#endif
		903
		904	#if __cplusplus
		905	template<typename T>
		906	static inline T ecb_div_rd (T val, T div)
		907	{
		908	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		909	}
		910	template<typename T>
		911	static inline T ecb_div_ru (T val, T div)
		912	{
		913	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		914	}
		915	#else
		916	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		917	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		918	#endif
		919
		920	#if ecb_cplusplus_does_not_suck
		921	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		922	template<typename T, int N>
		923	static inline int ecb_array_length (const T (&arr)[N])
		924	{
		925	return N;
		926	}
		927	#else
		928	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		929	#endif
		930
		931	#endif
		932
		933	/* ECB.H END */
		934
		935	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		936	/* if your architecture doesn't need memory fences, e.g. because it is
		937	* single-cpu/core, or if you use libev in a project that doesn't use libev
		938	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		939	* libev, in which cases the memory fences become nops.
		940	* alternatively, you can remove this #error and link against libpthread,
		941	* which will then provide the memory fences.
		942	*/
		943	# error "memory fences not defined for your architecture, please report"
		944	#endif
		945
		946	#ifndef ECB_MEMORY_FENCE
		947	# define ECB_MEMORY_FENCE do { } while (0)
		948	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		949	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		950	#endif
		951
		952	#define expect_false(cond) ecb_expect_false (cond)
		953	#define expect_true(cond) ecb_expect_true (cond)
		954	#define noinline ecb_noinline
		955
482	#define inline_size static inline	956	#define inline_size ecb_inline
483		957
484	#if EV_FEATURE_CODE	958	#if EV_FEATURE_CODE
485	# define inline_speed static inline	959	# define inline_speed ecb_inline
486	#else	960	#else
487	# define inline_speed static noinline	961	# define inline_speed static noinline
488	#endif	962	#endif
489		963
490	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	964	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
581		1055
582	#ifdef __linux	1056	#ifdef __linux
583	# include <sys/utsname.h>	1057	# include <sys/utsname.h>
584	#endif	1058	#endif
585		1059
586	static unsigned int noinline	1060	static unsigned int noinline ecb_cold
587	ev_linux_version (void)	1061	ev_linux_version (void)
588	{	1062	{
589	#ifdef __linux	1063	#ifdef __linux
590	unsigned int v = 0;	1064	unsigned int v = 0;
591	struct utsname buf;	1065	struct utsname buf;
…		…
620	}	1094	}
621		1095
622	/*****************************************************************************/	1096	/*****************************************************************************/
623		1097
624	#if EV_AVOID_STDIO	1098	#if EV_AVOID_STDIO
625	static void noinline	1099	static void noinline ecb_cold
626	ev_printerr (const char *msg)	1100	ev_printerr (const char *msg)
627	{	1101	{
628	write (STDERR_FILENO, msg, strlen (msg));	1102	write (STDERR_FILENO, msg, strlen (msg));
629	}	1103	}
630	#endif	1104	#endif
631		1105
632	static void (syserr_cb)(const char msg);	1106	static void (syserr_cb)(const char msg);
633		1107
634	void	1108	void ecb_cold
635	ev_set_syserr_cb (void (cb)(const char msg))	1109	ev_set_syserr_cb (void (cb)(const char msg))
636	{	1110	{
637	syserr_cb = cb;	1111	syserr_cb = cb;
638	}	1112	}
639		1113
640	static void noinline	1114	static void noinline ecb_cold
641	ev_syserr (const char *msg)	1115	ev_syserr (const char *msg)
642	{	1116	{
643	if (!msg)	1117	if (!msg)
644	msg = "(libev) system error";	1118	msg = "(libev) system error";
645		1119
…		…
678	#endif	1152	#endif
679	}	1153	}
680		1154
681	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	1155	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
682		1156
683	void	1157	void ecb_cold
684	ev_set_allocator (void (cb)(void *ptr, long size))	1158	ev_set_allocator (void (cb)(void *ptr, long size))
685	{	1159	{
686	alloc = cb;	1160	alloc = cb;
687	}	1161	}
688		1162
…		…
777	#undef VAR	1251	#undef VAR
778	};	1252	};
779	#include "ev_wrap.h"	1253	#include "ev_wrap.h"
780		1254
781	static struct ev_loop default_loop_struct;	1255	static struct ev_loop default_loop_struct;
782	struct ev_loop *ev_default_loop_ptr;	1256	EV_API_DECL struct ev_loop ev_default_loop_ptr = 0; / needs to be initialised to make it a definition despite extern */
783		1257
784	#else	1258	#else
785		1259
786	ev_tstamp ev_rt_now;	1260	EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
787	#define VAR(name,decl) static decl;	1261	#define VAR(name,decl) static decl;
788	#include "ev_vars.h"	1262	#include "ev_vars.h"
789	#undef VAR	1263	#undef VAR
790		1264
791	static int ev_default_loop_ptr;	1265	static int ev_default_loop_ptr;
…		…
885		1359
886	do	1360	do
887	ncur <<= 1;	1361	ncur <<= 1;
888	while (cnt > ncur);	1362	while (cnt > ncur);
889		1363
890	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1364	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
891	if (elem * ncur > MALLOC_ROUND - sizeof (void ) 4)	1365	if (elem * ncur > MALLOC_ROUND - sizeof (void ) 4)
892	{	1366	{
893	ncur *= elem;	1367	ncur *= elem;
894	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void ) 4) & ~(MALLOC_ROUND - 1);	1368	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void ) 4) & ~(MALLOC_ROUND - 1);
895	ncur = ncur - sizeof (void ) 4;	1369	ncur = ncur - sizeof (void ) 4;
…		…
897	}	1371	}
898		1372
899	return ncur;	1373	return ncur;
900	}	1374	}
901		1375
902	static noinline void *	1376	static void * noinline ecb_cold
903	array_realloc (int elem, void base, int cur, int cnt)	1377	array_realloc (int elem, void base, int cur, int cnt)
904	{	1378	{
905	cur = array_nextsize (elem, cur, cnt);	1379	cur = array_nextsize (elem, cur, cnt);
906	return ev_realloc (base, elem * *cur);	1380	return ev_realloc (base, elem * *cur);
907	}	1381	}
…		…
910	memset ((void )(base), 0, sizeof ((base)) * (count))	1384	memset ((void )(base), 0, sizeof ((base)) * (count))
911		1385
912	#define array_needsize(type,base,cur,cnt,init) \	1386	#define array_needsize(type,base,cur,cnt,init) \
913	if (expect_false ((cnt) > (cur))) \	1387	if (expect_false ((cnt) > (cur))) \
914	{ \	1388	{ \
915	int ocur_ = (cur); \	1389	int ecb_unused ocur_ = (cur); \
916	(base) = (type *)array_realloc \	1390	(base) = (type *)array_realloc \
917	(sizeof (type), (base), &(cur), (cnt)); \	1391	(sizeof (type), (base), &(cur), (cnt)); \
918	init ((base) + (ocur_), (cur) - ocur_); \	1392	init ((base) + (ocur_), (cur) - ocur_); \
919	}	1393	}
920		1394
…		…
1090	fdchanges [fdchangecnt - 1] = fd;	1564	fdchanges [fdchangecnt - 1] = fd;
1091	}	1565	}
1092	}	1566	}
1093		1567
1094	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1568	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1095	inline_speed void	1569	inline_speed void ecb_cold
1096	fd_kill (EV_P_ int fd)	1570	fd_kill (EV_P_ int fd)
1097	{	1571	{
1098	ev_io *w;	1572	ev_io *w;
1099		1573
1100	while ((w = (ev_io *)anfds [fd].head))	1574	while ((w = (ev_io *)anfds [fd].head))
…		…
1103	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	1577	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
1104	}	1578	}
1105	}	1579	}
1106		1580
1107	/* check whether the given fd is actually valid, for error recovery */	1581	/* check whether the given fd is actually valid, for error recovery */
1108	inline_size int	1582	inline_size int ecb_cold
1109	fd_valid (int fd)	1583	fd_valid (int fd)
1110	{	1584	{
1111	#ifdef _WIN32	1585	#ifdef _WIN32
1112	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1586	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1113	#else	1587	#else
1114	return fcntl (fd, F_GETFD) != -1;	1588	return fcntl (fd, F_GETFD) != -1;
1115	#endif	1589	#endif
1116	}	1590	}
1117		1591
1118	/* called on EBADF to verify fds */	1592	/* called on EBADF to verify fds */
1119	static void noinline	1593	static void noinline ecb_cold
1120	fd_ebadf (EV_P)	1594	fd_ebadf (EV_P)
1121	{	1595	{
1122	int fd;	1596	int fd;
1123		1597
1124	for (fd = 0; fd < anfdmax; ++fd)	1598	for (fd = 0; fd < anfdmax; ++fd)
…		…
1126	if (!fd_valid (fd) && errno == EBADF)	1600	if (!fd_valid (fd) && errno == EBADF)
1127	fd_kill (EV_A_ fd);	1601	fd_kill (EV_A_ fd);
1128	}	1602	}
1129		1603
1130	/* called on ENOMEM in select/poll to kill some fds and retry */	1604	/* called on ENOMEM in select/poll to kill some fds and retry */
1131	static void noinline	1605	static void noinline ecb_cold
1132	fd_enomem (EV_P)	1606	fd_enomem (EV_P)
1133	{	1607	{
1134	int fd;	1608	int fd;
1135		1609
1136	for (fd = anfdmax; fd--; )	1610	for (fd = anfdmax; fd--; )
…		…
1331		1805
1332	/*****************************************************************************/	1806	/*****************************************************************************/
1333		1807
1334	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE	1808	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1335		1809
1336	static void noinline	1810	static void noinline ecb_cold
1337	evpipe_init (EV_P)	1811	evpipe_init (EV_P)
1338	{	1812	{
1339	if (!ev_is_active (&pipe_w))	1813	if (!ev_is_active (&pipe_w))
1340	{	1814	{
1341	# if EV_USE_EVENTFD	1815	# if EV_USE_EVENTFD
…		…
1363	ev_io_start (EV_A_ &pipe_w);	1837	ev_io_start (EV_A_ &pipe_w);
1364	ev_unref (EV_A); /* watcher should not keep loop alive */	1838	ev_unref (EV_A); /* watcher should not keep loop alive */
1365	}	1839	}
1366	}	1840	}
1367		1841
1368	inline_size void	1842	inline_speed void
1369	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1843	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1370	{	1844	{
1371	if (!*flag)	1845	if (expect_true (*flag))
1372	{	1846	return;
		1847
1373	*flag = 1;	1848	*flag = 1;
1374		1849
		1850	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1851
1375	pipe_write_skipped = 1;	1852	pipe_write_skipped = 1;
1376		1853
		1854	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1855
1377	if (pipe_write_wanted)	1856	if (pipe_write_wanted)
		1857	{
		1858	int old_errno;
		1859
		1860	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
		1861
		1862	old_errno = errno; /* save errno because write will clobber it */
		1863
		1864	#if EV_USE_EVENTFD
		1865	if (evfd >= 0)
1378	{	1866	{
1379	int old_errno = errno; /* save errno because write will clobber it */
1380	char dummy;
1381
1382	pipe_write_skipped = 0;
1383
1384	#if EV_USE_EVENTFD
1385	if (evfd >= 0)
1386	{
1387	uint64_t counter = 1;	1867	uint64_t counter = 1;
1388	write (evfd, &counter, sizeof (uint64_t));	1868	write (evfd, &counter, sizeof (uint64_t));
1389	}
1390	else
1391	#endif
1392	{
1393	/* win32 people keep sending patches that change this write() to send() */
1394	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
1395	/* so when you think this write should be a send instead, please find out */
1396	/* where your send() is from - it's definitely not the microsoft send, and */
1397	/* tell me. thank you. */
1398	write (evpipe [1], &dummy, 1);
1399	}
1400
1401	errno = old_errno;
1402	}	1869	}
		1870	else
		1871	#endif
		1872	{
		1873	/* win32 people keep sending patches that change this write() to send() */
		1874	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1875	/* so when you think this write should be a send instead, please find out */
		1876	/* where your send() is from - it's definitely not the microsoft send, and */
		1877	/* tell me. thank you. */
		1878	/* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
		1879	/* check the ev documentation on how to use this flag */
		1880	write (evpipe [1], &(evpipe [1]), 1);
		1881	}
		1882
		1883	errno = old_errno;
1403	}	1884	}
1404	}	1885	}
1405		1886
1406	/* called whenever the libev signal pipe */	1887	/* called whenever the libev signal pipe */
1407	/* got some events (signal, async) */	1888	/* got some events (signal, async) */
…		…
1465		1946
1466	if (!EV_A)	1947	if (!EV_A)
1467	return;	1948	return;
1468	#endif	1949	#endif
1469		1950
1470	evpipe_init (EV_A);	1951	if (!ev_active (&pipe_w))
		1952	return;
1471		1953
1472	signals [signum - 1].pending = 1;	1954	signals [signum - 1].pending = 1;
1473	evpipe_write (EV_A_ &sig_pending);	1955	evpipe_write (EV_A_ &sig_pending);
1474	}	1956	}
1475		1957
…		…
1607	#endif	2089	#endif
1608	#if EV_USE_SELECT	2090	#if EV_USE_SELECT
1609	# include "ev_select.c"	2091	# include "ev_select.c"
1610	#endif	2092	#endif
1611		2093
1612	int	2094	int ecb_cold
1613	ev_version_major (void)	2095	ev_version_major (void)
1614	{	2096	{
1615	return EV_VERSION_MAJOR;	2097	return EV_VERSION_MAJOR;
1616	}	2098	}
1617		2099
1618	int	2100	int ecb_cold
1619	ev_version_minor (void)	2101	ev_version_minor (void)
1620	{	2102	{
1621	return EV_VERSION_MINOR;	2103	return EV_VERSION_MINOR;
1622	}	2104	}
1623		2105
1624	/* return true if we are running with elevated privileges and should ignore env variables */	2106	/* return true if we are running with elevated privileges and should ignore env variables */
1625	int inline_size	2107	int inline_size ecb_cold
1626	enable_secure (void)	2108	enable_secure (void)
1627	{	2109	{
1628	#ifdef _WIN32	2110	#ifdef _WIN32
1629	return 0;	2111	return 0;
1630	#else	2112	#else
1631	return getuid () != geteuid ()	2113	return getuid () != geteuid ()
1632	\|\| getgid () != getegid ();	2114	\|\| getgid () != getegid ();
1633	#endif	2115	#endif
1634	}	2116	}
1635		2117
1636	unsigned int	2118	unsigned int ecb_cold
1637	ev_supported_backends (void)	2119	ev_supported_backends (void)
1638	{	2120	{
1639	unsigned int flags = 0;	2121	unsigned int flags = 0;
1640		2122
1641	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;	2123	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
…		…
1645	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;	2127	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
1646		2128
1647	return flags;	2129	return flags;
1648	}	2130	}
1649		2131
1650	unsigned int	2132	unsigned int ecb_cold
1651	ev_recommended_backends (void)	2133	ev_recommended_backends (void)
1652	{	2134	{
1653	unsigned int flags = ev_supported_backends ();	2135	unsigned int flags = ev_supported_backends ();
1654		2136
1655	#ifndef __NetBSD__	2137	#ifndef __NetBSD__
…		…
1667	#endif	2149	#endif
1668		2150
1669	return flags;	2151	return flags;
1670	}	2152	}
1671		2153
1672	unsigned int	2154	unsigned int ecb_cold
1673	ev_embeddable_backends (void)	2155	ev_embeddable_backends (void)
1674	{	2156	{
1675	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;	2157	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
1676		2158
1677	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2159	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
…		…
1722	ev_userdata (EV_P)	2204	ev_userdata (EV_P)
1723	{	2205	{
1724	return userdata;	2206	return userdata;
1725	}	2207	}
1726		2208
		2209	void
1727	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2210	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1728	{	2211	{
1729	invoke_cb = invoke_pending_cb;	2212	invoke_cb = invoke_pending_cb;
1730	}	2213	}
1731		2214
		2215	void
1732	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))	2216	ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))
1733	{	2217	{
1734	release_cb = release;	2218	release_cb = release;
1735	acquire_cb = acquire;	2219	acquire_cb = acquire;
1736	}	2220	}
1737	#endif	2221	#endif
1738		2222
1739	/* initialise a loop structure, must be zero-initialised */	2223	/* initialise a loop structure, must be zero-initialised */
1740	static void noinline	2224	static void noinline ecb_cold
1741	loop_init (EV_P_ unsigned int flags)	2225	loop_init (EV_P_ unsigned int flags)
1742	{	2226	{
1743	if (!backend)	2227	if (!backend)
1744	{	2228	{
1745	origflags = flags;	2229	origflags = flags;
…		…
1830	#endif	2314	#endif
1831	}	2315	}
1832	}	2316	}
1833		2317
1834	/* free up a loop structure */	2318	/* free up a loop structure */
1835	void	2319	void ecb_cold
1836	ev_loop_destroy (EV_P)	2320	ev_loop_destroy (EV_P)
1837	{	2321	{
1838	int i;	2322	int i;
1839		2323
1840	#if EV_MULTIPLICITY	2324	#if EV_MULTIPLICITY
…		…
1998	postfork = 0;	2482	postfork = 0;
1999	}	2483	}
2000		2484
2001	#if EV_MULTIPLICITY	2485	#if EV_MULTIPLICITY
2002		2486
2003	struct ev_loop *	2487	struct ev_loop * ecb_cold
2004	ev_loop_new (unsigned int flags)	2488	ev_loop_new (unsigned int flags)
2005	{	2489	{
2006	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2490	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2007		2491
2008	memset (EV_A, 0, sizeof (struct ev_loop));	2492	memset (EV_A, 0, sizeof (struct ev_loop));
…		…
2016	}	2500	}
2017		2501
2018	#endif /* multiplicity */	2502	#endif /* multiplicity */
2019		2503
2020	#if EV_VERIFY	2504	#if EV_VERIFY
2021	static void noinline	2505	static void noinline ecb_cold
2022	verify_watcher (EV_P_ W w)	2506	verify_watcher (EV_P_ W w)
2023	{	2507	{
2024	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2508	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2025		2509
2026	if (w->pending)	2510	if (w->pending)
2027	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2511	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2028	}	2512	}
2029		2513
2030	static void noinline	2514	static void noinline ecb_cold
2031	verify_heap (EV_P_ ANHE *heap, int N)	2515	verify_heap (EV_P_ ANHE *heap, int N)
2032	{	2516	{
2033	int i;	2517	int i;
2034		2518
2035	for (i = HEAP0; i < N + HEAP0; ++i)	2519	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2040		2524
2041	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2525	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2042	}	2526	}
2043	}	2527	}
2044		2528
2045	static void noinline	2529	static void noinline ecb_cold
2046	array_verify (EV_P_ W *ws, int cnt)	2530	array_verify (EV_P_ W *ws, int cnt)
2047	{	2531	{
2048	while (cnt--)	2532	while (cnt--)
2049	{	2533	{
2050	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2534	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2052	}	2536	}
2053	}	2537	}
2054	#endif	2538	#endif
2055		2539
2056	#if EV_FEATURE_API	2540	#if EV_FEATURE_API
2057	void	2541	void ecb_cold
2058	ev_verify (EV_P)	2542	ev_verify (EV_P)
2059	{	2543	{
2060	#if EV_VERIFY	2544	#if EV_VERIFY
2061	int i;	2545	int i;
2062	WL w;	2546	WL w;
…		…
2128	#endif	2612	#endif
2129	}	2613	}
2130	#endif	2614	#endif
2131		2615
2132	#if EV_MULTIPLICITY	2616	#if EV_MULTIPLICITY
2133	struct ev_loop *	2617	struct ev_loop * ecb_cold
2134	#else	2618	#else
2135	int	2619	int
2136	#endif	2620	#endif
2137	ev_default_loop (unsigned int flags)	2621	ev_default_loop (unsigned int flags)
2138	{	2622	{
…		…
2337	}	2821	}
2338	}	2822	}
2339		2823
2340	/* simply recalculate all periodics */	2824	/* simply recalculate all periodics */
2341	/* TODO: maybe ensure that at least one event happens when jumping forward? */	2825	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2342	static void noinline	2826	static void noinline ecb_cold
2343	periodics_reschedule (EV_P)	2827	periodics_reschedule (EV_P)
2344	{	2828	{
2345	int i;	2829	int i;
2346		2830
2347	/* adjust periodics after time jump */	2831	/* adjust periodics after time jump */
…		…
2360	reheap (periodics, periodiccnt);	2844	reheap (periodics, periodiccnt);
2361	}	2845	}
2362	#endif	2846	#endif
2363		2847
2364	/* adjust all timers by a given offset */	2848	/* adjust all timers by a given offset */
2365	static void noinline	2849	static void noinline ecb_cold
2366	timers_reschedule (EV_P_ ev_tstamp adjust)	2850	timers_reschedule (EV_P_ ev_tstamp adjust)
2367	{	2851	{
2368	int i;	2852	int i;
2369		2853
2370	for (i = 0; i < timercnt; ++i)	2854	for (i = 0; i < timercnt; ++i)
…		…
2515	time_update (EV_A_ 1e100);	2999	time_update (EV_A_ 1e100);
2516		3000
2517	/* from now on, we want a pipe-wake-up */	3001	/* from now on, we want a pipe-wake-up */
2518	pipe_write_wanted = 1;	3002	pipe_write_wanted = 1;
2519		3003
		3004	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3005
2520	if (expect_true (!(flags & EVRUN_NOWAIT \|\| idleall \|\| !activecnt \|\| pipe_write_skipped)))	3006	if (expect_true (!(flags & EVRUN_NOWAIT \|\| idleall \|\| !activecnt \|\| pipe_write_skipped)))
2521	{	3007	{
2522	waittime = MAX_BLOCKTIME;	3008	waittime = MAX_BLOCKTIME;
2523		3009
2524	if (timercnt)	3010	if (timercnt)
…		…
2565	#endif	3051	#endif
2566	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3052	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2567	backend_poll (EV_A_ waittime);	3053	backend_poll (EV_A_ waittime);
2568	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3054	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2569		3055
2570	pipe_write_wanted = 0;	3056	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2571		3057
2572	if (pipe_write_skipped)	3058	if (pipe_write_skipped)
2573	{	3059	{
2574	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3060	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2575	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	3061	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
…		…
2833		3319
2834	void noinline	3320	void noinline
2835	ev_timer_again (EV_P_ ev_timer *w)	3321	ev_timer_again (EV_P_ ev_timer *w)
2836	{	3322	{
2837	EV_FREQUENT_CHECK;	3323	EV_FREQUENT_CHECK;
		3324
		3325	clear_pending (EV_A_ (W)w);
2838		3326
2839	if (ev_is_active (w))	3327	if (ev_is_active (w))
2840	{	3328	{
2841	if (w->repeat)	3329	if (w->repeat)
2842	{	3330	{
…		…
3236	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3724	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3237	ofs += sizeof (struct inotify_event) + ev->len;	3725	ofs += sizeof (struct inotify_event) + ev->len;
3238	}	3726	}
3239	}	3727	}
3240		3728
3241	inline_size void	3729	inline_size void ecb_cold
3242	ev_check_2625 (EV_P)	3730	ev_check_2625 (EV_P)
3243	{	3731	{
3244	/* kernels < 2.6.25 are borked	3732	/* kernels < 2.6.25 are borked
3245	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3733	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3246	*/	3734	*/
…		…
3871	}	4359	}
3872		4360
3873	/*****************************************************************************/	4361	/*****************************************************************************/
3874		4362
3875	#if EV_WALK_ENABLE	4363	#if EV_WALK_ENABLE
3876	void	4364	void ecb_cold
3877	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))	4365	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))
3878	{	4366	{
3879	int i, j;	4367	int i, j;
3880	ev_watcher_list wl, wn;	4368	ev_watcher_list wl, wn;
3881		4369
…		…
3925	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4413	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3926	#endif	4414	#endif
3927		4415
3928	#if EV_IDLE_ENABLE	4416	#if EV_IDLE_ENABLE
3929	if (types & EV_IDLE)	4417	if (types & EV_IDLE)
3930	for (j = NUMPRI; i--; )	4418	for (j = NUMPRI; j--; )
3931	for (i = idlecnt [j]; i--; )	4419	for (i = idlecnt [j]; i--; )
3932	cb (EV_A_ EV_IDLE, idles [j][i]);	4420	cb (EV_A_ EV_IDLE, idles [j][i]);
3933	#endif	4421	#endif
3934		4422
3935	#if EV_FORK_ENABLE	4423	#if EV_FORK_ENABLE
…		…
3988		4476
3989	#if EV_MULTIPLICITY	4477	#if EV_MULTIPLICITY
3990	#include "ev_wrap.h"	4478	#include "ev_wrap.h"
3991	#endif	4479	#endif
3992		4480
3993	EV_CPP(})
3994

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Comparing libev/ev.c (file contents): Revision 1.378 by root, Mon Jun 13 09:52:36 2011 UTC vs. Revision 1.412 by root, Wed Feb 22 01:53:00 2012 UTC

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Comparing libev/ev.c (file contents):
Revision 1.378 by root, Mon Jun 13 09:52:36 2011 UTC vs.
Revision 1.412 by root, Wed Feb 22 01:53:00 2012 UTC