[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 1.410 by root, Sat Feb 4 17:57:55 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	#endif
		583	#endif
		584	#endif
		585
		586	#ifndef ECB_MEMORY_FENCE
		587	#if ECB_GCC_VERSION(4,4) \|\| defined(__INTEL_COMPILER) \|\| defined(__clang__)
		588	#define ECB_MEMORY_FENCE __sync_synchronize ()
		589	/#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) /
		590	/#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) /
		591	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		592	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		593	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		594	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		595	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		596	#elif defined(_WIN32)
		597	#include <WinNT.h>
		598	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		599	#elif __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110
		600	#include <mbarrier.h>
		601	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		602	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		603	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		604	#endif
		605	#endif
		606
		607	#ifndef ECB_MEMORY_FENCE
		608	#if !ECB_AVOID_PTHREADS
		609	/*
		610	* if you get undefined symbol references to pthread_mutex_lock,
		611	* or failure to find pthread.h, then you should implement
		612	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		613	* OR provide pthread.h and link against the posix thread library
		614	* of your system.
		615	*/
		616	#include <pthread.h>
		617	#define ECB_NEEDS_PTHREADS 1
		618	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		619
		620	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		621	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		622	#endif
		623	#endif
		624
		625	#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
		626	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		627	#endif
		628
		629	#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
		630	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		631	#endif
		632
		633	/*****************************************************************************/
		634
		635	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		636
		637	#if __cplusplus
		638	#define ecb_inline static inline
		639	#elif ECB_GCC_VERSION(2,5)
		640	#define ecb_inline static __inline__
		641	#elif ECB_C99
		642	#define ecb_inline static inline
		643	#else
		644	#define ecb_inline static
		645	#endif
		646
		647	#if ECB_GCC_VERSION(3,3)
		648	#define ecb_restrict __restrict__
		649	#elif ECB_C99
		650	#define ecb_restrict restrict
		651	#else
		652	#define ecb_restrict
		653	#endif
		654
		655	typedef int ecb_bool;
		656
		657	#define ECB_CONCAT_(a, b) a ## b
		658	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
		659	#define ECB_STRINGIFY_(a) # a
		660	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		661
		662	#define ecb_function_ ecb_inline
		663
		664	#if ECB_GCC_VERSION(3,1)
		665	#define ecb_attribute(attrlist) __attribute__(attrlist)
		666	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		667	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		668	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
		669	#else
		670	#define ecb_attribute(attrlist)
		671	#define ecb_is_constant(expr) 0
		672	#define ecb_expect(expr,value) (expr)
		673	#define ecb_prefetch(addr,rw,locality)
		674	#endif
		675
		676	/* no emulation for ecb_decltype */
		677	#if ECB_GCC_VERSION(4,5)
		678	#define ecb_decltype(x) __decltype(x)
		679	#elif ECB_GCC_VERSION(3,0)
		680	#define ecb_decltype(x) __typeof(x)
		681	#endif
		682
		683	#define ecb_noinline ecb_attribute ((__noinline__))
		684	#define ecb_noreturn ecb_attribute ((__noreturn__))
		685	#define ecb_unused ecb_attribute ((__unused__))
		686	#define ecb_const ecb_attribute ((__const__))
		687	#define ecb_pure ecb_attribute ((__pure__))
		688
		689	#if ECB_GCC_VERSION(4,3)
		690	#define ecb_artificial ecb_attribute ((__artificial__))
		691	#define ecb_hot ecb_attribute ((__hot__))
		692	#define ecb_cold ecb_attribute ((__cold__))
		693	#else
		694	#define ecb_artificial
		695	#define ecb_hot
		696	#define ecb_cold
		697	#endif
		698
		699	/* put around conditional expressions if you are very sure that the */
		700	/* expression is mostly true or mostly false. note that these return */
		701	/* booleans, not the expression. */
480	#define expect_false(expr) expect ((expr) != 0, 0)	702	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481	#define expect_true(expr) expect ((expr) != 0, 1)	703	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		704	/* for compatibility to the rest of the world */
		705	#define ecb_likely(expr) ecb_expect_true (expr)
		706	#define ecb_unlikely(expr) ecb_expect_false (expr)
		707
		708	/* count trailing zero bits and count # of one bits */
		709	#if ECB_GCC_VERSION(3,4)
		710	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		711	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		712	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		713	#define ecb_ctz32(x) __builtin_ctz (x)
		714	#define ecb_ctz64(x) __builtin_ctzll (x)
		715	#define ecb_popcount32(x) __builtin_popcount (x)
		716	/* no popcountll */
		717	#else
		718	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		719	ecb_function_ int
		720	ecb_ctz32 (uint32_t x)
		721	{
		722	int r = 0;
		723
		724	x &= ~x + 1; /* this isolates the lowest bit */
		725
		726	#if ECB_branchless_on_i386
		727	r += !!(x & 0xaaaaaaaa) << 0;
		728	r += !!(x & 0xcccccccc) << 1;
		729	r += !!(x & 0xf0f0f0f0) << 2;
		730	r += !!(x & 0xff00ff00) << 3;
		731	r += !!(x & 0xffff0000) << 4;
		732	#else
		733	if (x & 0xaaaaaaaa) r += 1;
		734	if (x & 0xcccccccc) r += 2;
		735	if (x & 0xf0f0f0f0) r += 4;
		736	if (x & 0xff00ff00) r += 8;
		737	if (x & 0xffff0000) r += 16;
		738	#endif
		739
		740	return r;
		741	}
		742
		743	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		744	ecb_function_ int
		745	ecb_ctz64 (uint64_t x)
		746	{
		747	int shift = x & 0xffffffffU ? 0 : 32;
		748	return ecb_ctz32 (x >> shift) + shift;
		749	}
		750
		751	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		752	ecb_function_ int
		753	ecb_popcount32 (uint32_t x)
		754	{
		755	x -= (x >> 1) & 0x55555555;
		756	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		757	x = ((x >> 4) + x) & 0x0f0f0f0f;
		758	x *= 0x01010101;
		759
		760	return x >> 24;
		761	}
		762
		763	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		764	ecb_function_ int ecb_ld32 (uint32_t x)
		765	{
		766	int r = 0;
		767
		768	if (x >> 16) { x >>= 16; r += 16; }
		769	if (x >> 8) { x >>= 8; r += 8; }
		770	if (x >> 4) { x >>= 4; r += 4; }
		771	if (x >> 2) { x >>= 2; r += 2; }
		772	if (x >> 1) { r += 1; }
		773
		774	return r;
		775	}
		776
		777	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		778	ecb_function_ int ecb_ld64 (uint64_t x)
		779	{
		780	int r = 0;
		781
		782	if (x >> 32) { x >>= 32; r += 32; }
		783
		784	return r + ecb_ld32 (x);
		785	}
		786	#endif
		787
		788	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		789	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		790	{
		791	return ( (x * 0x0802U & 0x22110U)
		792	\| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		793	}
		794
		795	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		796	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		797	{
		798	x = ((x >> 1) & 0x5555) \| ((x & 0x5555) << 1);
		799	x = ((x >> 2) & 0x3333) \| ((x & 0x3333) << 2);
		800	x = ((x >> 4) & 0x0f0f) \| ((x & 0x0f0f) << 4);
		801	x = ( x >> 8 ) \| ( x << 8);
		802
		803	return x;
		804	}
		805
		806	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		807	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		808	{
		809	x = ((x >> 1) & 0x55555555) \| ((x & 0x55555555) << 1);
		810	x = ((x >> 2) & 0x33333333) \| ((x & 0x33333333) << 2);
		811	x = ((x >> 4) & 0x0f0f0f0f) \| ((x & 0x0f0f0f0f) << 4);
		812	x = ((x >> 8) & 0x00ff00ff) \| ((x & 0x00ff00ff) << 8);
		813	x = ( x >> 16 ) \| ( x << 16);
		814
		815	return x;
		816	}
		817
		818	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		819	/* so for this version we are lazy */
		820	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		821	ecb_function_ int
		822	ecb_popcount64 (uint64_t x)
		823	{
		824	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		825	}
		826
		827	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		828	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		829	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		830	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		831	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		832	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		833	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		834	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		835
		836	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }
		837	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }
		838	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }
		839	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }
		840	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }
		841	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }
		842	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }
		843	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }
		844
		845	#if ECB_GCC_VERSION(4,3)
		846	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		847	#define ecb_bswap32(x) __builtin_bswap32 (x)
		848	#define ecb_bswap64(x) __builtin_bswap64 (x)
		849	#else
		850	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		851	ecb_function_ uint16_t
		852	ecb_bswap16 (uint16_t x)
		853	{
		854	return ecb_rotl16 (x, 8);
		855	}
		856
		857	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		858	ecb_function_ uint32_t
		859	ecb_bswap32 (uint32_t x)
		860	{
		861	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);
		862	}
		863
		864	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		865	ecb_function_ uint64_t
		866	ecb_bswap64 (uint64_t x)
		867	{
		868	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);
		869	}
		870	#endif
		871
		872	#if ECB_GCC_VERSION(4,5)
		873	#define ecb_unreachable() __builtin_unreachable ()
		874	#else
		875	/* this seems to work fine, but gcc always emits a warning for it :/ */
		876	ecb_inline void ecb_unreachable (void) ecb_noreturn;
		877	ecb_inline void ecb_unreachable (void) { }
		878	#endif
		879
		880	/* try to tell the compiler that some condition is definitely true */
		881	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
		882
		883	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
		884	ecb_inline unsigned char
		885	ecb_byteorder_helper (void)
		886	{
		887	const uint32_t u = 0x11223344;
		888	return (unsigned char )&u;
		889	}
		890
		891	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
		892	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
		893	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
		894	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
		895
		896	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99
		897	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
		898	#else
		899	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		900	#endif
		901
		902	#if __cplusplus
		903	template<typename T>
		904	static inline T ecb_div_rd (T val, T div)
		905	{
		906	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		907	}
		908	template<typename T>
		909	static inline T ecb_div_ru (T val, T div)
		910	{
		911	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		912	}
		913	#else
		914	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		915	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
		916	#endif
		917
		918	#if ecb_cplusplus_does_not_suck
		919	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
		920	template<typename T, int N>
		921	static inline int ecb_array_length (const T (&arr)[N])
		922	{
		923	return N;
		924	}
		925	#else
		926	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
		927	#endif
		928
		929	#endif
		930
		931	/* ECB.H END */
		932
		933	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
		934	/* if your architecture doesn't need memory fences, e.g. because it is
		935	* single-cpu/core, or if you use libev in a project that doesn't use libev
		936	* from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
		937	* libev, in which cases the memory fences become nops.
		938	* alternatively, you can remove this #error and link against libpthread,
		939	* which will then provide the memory fences.
		940	*/
		941	# error "memory fences not defined for your architecture, please report"
		942	#endif
		943
		944	#ifndef ECB_MEMORY_FENCE
		945	# define ECB_MEMORY_FENCE do { } while (0)
		946	# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		947	# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		948	#endif
		949
		950	#define expect_false(cond) ecb_expect_false (cond)
		951	#define expect_true(cond) ecb_expect_true (cond)
		952	#define noinline ecb_noinline
		953
482	#define inline_size static inline	954	#define inline_size ecb_inline
483		955
484	#if EV_FEATURE_CODE	956	#if EV_FEATURE_CODE
485	# define inline_speed static inline	957	# define inline_speed ecb_inline
486	#else	958	#else
487	# define inline_speed static noinline	959	# define inline_speed static noinline
488	#endif	960	#endif
489		961
490	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	962	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
…		…
581		1053
582	#ifdef __linux	1054	#ifdef __linux
583	# include <sys/utsname.h>	1055	# include <sys/utsname.h>
584	#endif	1056	#endif
585		1057
586	static unsigned int noinline	1058	static unsigned int noinline ecb_cold
587	ev_linux_version (void)	1059	ev_linux_version (void)
588	{	1060	{
589	#ifdef __linux	1061	#ifdef __linux
590	unsigned int v = 0;	1062	unsigned int v = 0;
591	struct utsname buf;	1063	struct utsname buf;
…		…
620	}	1092	}
621		1093
622	/*****************************************************************************/	1094	/*****************************************************************************/
623		1095
624	#if EV_AVOID_STDIO	1096	#if EV_AVOID_STDIO
625	static void noinline	1097	static void noinline ecb_cold
626	ev_printerr (const char *msg)	1098	ev_printerr (const char *msg)
627	{	1099	{
628	write (STDERR_FILENO, msg, strlen (msg));	1100	write (STDERR_FILENO, msg, strlen (msg));
629	}	1101	}
630	#endif	1102	#endif
631		1103
632	static void (syserr_cb)(const char msg);	1104	static void (syserr_cb)(const char msg);
633		1105
634	void	1106	void ecb_cold
635	ev_set_syserr_cb (void (cb)(const char msg))	1107	ev_set_syserr_cb (void (cb)(const char msg))
636	{	1108	{
637	syserr_cb = cb;	1109	syserr_cb = cb;
638	}	1110	}
639		1111
640	static void noinline	1112	static void noinline ecb_cold
641	ev_syserr (const char *msg)	1113	ev_syserr (const char *msg)
642	{	1114	{
643	if (!msg)	1115	if (!msg)
644	msg = "(libev) system error";	1116	msg = "(libev) system error";
645		1117
…		…
678	#endif	1150	#endif
679	}	1151	}
680		1152
681	static void (alloc)(void *ptr, long size) = ev_realloc_emul;	1153	static void (alloc)(void *ptr, long size) = ev_realloc_emul;
682		1154
683	void	1155	void ecb_cold
684	ev_set_allocator (void (cb)(void *ptr, long size))	1156	ev_set_allocator (void (cb)(void *ptr, long size))
685	{	1157	{
686	alloc = cb;	1158	alloc = cb;
687	}	1159	}
688		1160
…		…
777	#undef VAR	1249	#undef VAR
778	};	1250	};
779	#include "ev_wrap.h"	1251	#include "ev_wrap.h"
780		1252
781	static struct ev_loop default_loop_struct;	1253	static struct ev_loop default_loop_struct;
782	struct ev_loop *ev_default_loop_ptr;	1254	EV_API_DECL struct ev_loop ev_default_loop_ptr = 0; / needs to be initialised to make it a definition despite extern */
783		1255
784	#else	1256	#else
785		1257
786	ev_tstamp ev_rt_now;	1258	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;	1259	#define VAR(name,decl) static decl;
788	#include "ev_vars.h"	1260	#include "ev_vars.h"
789	#undef VAR	1261	#undef VAR
790		1262
791	static int ev_default_loop_ptr;	1263	static int ev_default_loop_ptr;
…		…
885		1357
886	do	1358	do
887	ncur <<= 1;	1359	ncur <<= 1;
888	while (cnt > ncur);	1360	while (cnt > ncur);
889		1361
890	/* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */	1362	/* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
891	if (elem * ncur > MALLOC_ROUND - sizeof (void ) 4)	1363	if (elem * ncur > MALLOC_ROUND - sizeof (void ) 4)
892	{	1364	{
893	ncur *= elem;	1365	ncur *= elem;
894	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void ) 4) & ~(MALLOC_ROUND - 1);	1366	ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void ) 4) & ~(MALLOC_ROUND - 1);
895	ncur = ncur - sizeof (void ) 4;	1367	ncur = ncur - sizeof (void ) 4;
…		…
897	}	1369	}
898		1370
899	return ncur;	1371	return ncur;
900	}	1372	}
901		1373
902	static noinline void *	1374	static void * noinline ecb_cold
903	array_realloc (int elem, void base, int cur, int cnt)	1375	array_realloc (int elem, void base, int cur, int cnt)
904	{	1376	{
905	cur = array_nextsize (elem, cur, cnt);	1377	cur = array_nextsize (elem, cur, cnt);
906	return ev_realloc (base, elem * *cur);	1378	return ev_realloc (base, elem * *cur);
907	}	1379	}
…		…
910	memset ((void )(base), 0, sizeof ((base)) * (count))	1382	memset ((void )(base), 0, sizeof ((base)) * (count))
911		1383
912	#define array_needsize(type,base,cur,cnt,init) \	1384	#define array_needsize(type,base,cur,cnt,init) \
913	if (expect_false ((cnt) > (cur))) \	1385	if (expect_false ((cnt) > (cur))) \
914	{ \	1386	{ \
915	int ocur_ = (cur); \	1387	int ecb_unused ocur_ = (cur); \
916	(base) = (type *)array_realloc \	1388	(base) = (type *)array_realloc \
917	(sizeof (type), (base), &(cur), (cnt)); \	1389	(sizeof (type), (base), &(cur), (cnt)); \
918	init ((base) + (ocur_), (cur) - ocur_); \	1390	init ((base) + (ocur_), (cur) - ocur_); \
919	}	1391	}
920		1392
…		…
1090	fdchanges [fdchangecnt - 1] = fd;	1562	fdchanges [fdchangecnt - 1] = fd;
1091	}	1563	}
1092	}	1564	}
1093		1565
1094	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	1566	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1095	inline_speed void	1567	inline_speed void ecb_cold
1096	fd_kill (EV_P_ int fd)	1568	fd_kill (EV_P_ int fd)
1097	{	1569	{
1098	ev_io *w;	1570	ev_io *w;
1099		1571
1100	while ((w = (ev_io *)anfds [fd].head))	1572	while ((w = (ev_io *)anfds [fd].head))
…		…
1103	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	1575	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
1104	}	1576	}
1105	}	1577	}
1106		1578
1107	/* check whether the given fd is actually valid, for error recovery */	1579	/* check whether the given fd is actually valid, for error recovery */
1108	inline_size int	1580	inline_size int ecb_cold
1109	fd_valid (int fd)	1581	fd_valid (int fd)
1110	{	1582	{
1111	#ifdef _WIN32	1583	#ifdef _WIN32
1112	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	1584	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1113	#else	1585	#else
1114	return fcntl (fd, F_GETFD) != -1;	1586	return fcntl (fd, F_GETFD) != -1;
1115	#endif	1587	#endif
1116	}	1588	}
1117		1589
1118	/* called on EBADF to verify fds */	1590	/* called on EBADF to verify fds */
1119	static void noinline	1591	static void noinline ecb_cold
1120	fd_ebadf (EV_P)	1592	fd_ebadf (EV_P)
1121	{	1593	{
1122	int fd;	1594	int fd;
1123		1595
1124	for (fd = 0; fd < anfdmax; ++fd)	1596	for (fd = 0; fd < anfdmax; ++fd)
…		…
1126	if (!fd_valid (fd) && errno == EBADF)	1598	if (!fd_valid (fd) && errno == EBADF)
1127	fd_kill (EV_A_ fd);	1599	fd_kill (EV_A_ fd);
1128	}	1600	}
1129		1601
1130	/* called on ENOMEM in select/poll to kill some fds and retry */	1602	/* called on ENOMEM in select/poll to kill some fds and retry */
1131	static void noinline	1603	static void noinline ecb_cold
1132	fd_enomem (EV_P)	1604	fd_enomem (EV_P)
1133	{	1605	{
1134	int fd;	1606	int fd;
1135		1607
1136	for (fd = anfdmax; fd--; )	1608	for (fd = anfdmax; fd--; )
…		…
1331		1803
1332	/*****************************************************************************/	1804	/*****************************************************************************/
1333		1805
1334	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE	1806	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
1335		1807
1336	static void noinline	1808	static void noinline ecb_cold
1337	evpipe_init (EV_P)	1809	evpipe_init (EV_P)
1338	{	1810	{
1339	if (!ev_is_active (&pipe_w))	1811	if (!ev_is_active (&pipe_w))
1340	{	1812	{
1341	# if EV_USE_EVENTFD	1813	# if EV_USE_EVENTFD
…		…
1363	ev_io_start (EV_A_ &pipe_w);	1835	ev_io_start (EV_A_ &pipe_w);
1364	ev_unref (EV_A); /* watcher should not keep loop alive */	1836	ev_unref (EV_A); /* watcher should not keep loop alive */
1365	}	1837	}
1366	}	1838	}
1367		1839
1368	inline_size void	1840	inline_speed void
1369	evpipe_write (EV_P_ EV_ATOMIC_T *flag)	1841	evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1370	{	1842	{
1371	if (!*flag)	1843	if (expect_true (*flag))
1372	{	1844	return;
		1845
1373	*flag = 1;	1846	*flag = 1;
1374		1847
		1848	ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
		1849
1375	pipe_write_skipped = 1;	1850	pipe_write_skipped = 1;
1376		1851
		1852	ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
		1853
1377	if (pipe_write_wanted)	1854	if (pipe_write_wanted)
		1855	{
		1856	int old_errno;
		1857
		1858	pipe_write_skipped = 0; /* just an optimisation, no fence needed */
		1859
		1860	old_errno = errno; /* save errno because write will clobber it */
		1861
		1862	#if EV_USE_EVENTFD
		1863	if (evfd >= 0)
1378	{	1864	{
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;	1865	uint64_t counter = 1;
1388	write (evfd, &counter, sizeof (uint64_t));	1866	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	}	1867	}
		1868	else
		1869	#endif
		1870	{
		1871	/* win32 people keep sending patches that change this write() to send() */
		1872	/* and then run away. but send() is wrong, it wants a socket handle on win32 */
		1873	/* so when you think this write should be a send instead, please find out */
		1874	/* where your send() is from - it's definitely not the microsoft send, and */
		1875	/* tell me. thank you. */
		1876	write (evpipe [1], &(evpipe [1]), 1);
		1877	}
		1878
		1879	errno = old_errno;
1403	}	1880	}
1404	}	1881	}
1405		1882
1406	/* called whenever the libev signal pipe */	1883	/* called whenever the libev signal pipe */
1407	/* got some events (signal, async) */	1884	/* got some events (signal, async) */
…		…
1465		1942
1466	if (!EV_A)	1943	if (!EV_A)
1467	return;	1944	return;
1468	#endif	1945	#endif
1469		1946
1470	evpipe_init (EV_A);	1947	if (!ev_active (&pipe_w))
		1948	return;
1471		1949
1472	signals [signum - 1].pending = 1;	1950	signals [signum - 1].pending = 1;
1473	evpipe_write (EV_A_ &sig_pending);	1951	evpipe_write (EV_A_ &sig_pending);
1474	}	1952	}
1475		1953
…		…
1607	#endif	2085	#endif
1608	#if EV_USE_SELECT	2086	#if EV_USE_SELECT
1609	# include "ev_select.c"	2087	# include "ev_select.c"
1610	#endif	2088	#endif
1611		2089
1612	int	2090	int ecb_cold
1613	ev_version_major (void)	2091	ev_version_major (void)
1614	{	2092	{
1615	return EV_VERSION_MAJOR;	2093	return EV_VERSION_MAJOR;
1616	}	2094	}
1617		2095
1618	int	2096	int ecb_cold
1619	ev_version_minor (void)	2097	ev_version_minor (void)
1620	{	2098	{
1621	return EV_VERSION_MINOR;	2099	return EV_VERSION_MINOR;
1622	}	2100	}
1623		2101
1624	/* return true if we are running with elevated privileges and should ignore env variables */	2102	/* return true if we are running with elevated privileges and should ignore env variables */
1625	int inline_size	2103	int inline_size ecb_cold
1626	enable_secure (void)	2104	enable_secure (void)
1627	{	2105	{
1628	#ifdef _WIN32	2106	#ifdef _WIN32
1629	return 0;	2107	return 0;
1630	#else	2108	#else
1631	return getuid () != geteuid ()	2109	return getuid () != geteuid ()
1632	\|\| getgid () != getegid ();	2110	\|\| getgid () != getegid ();
1633	#endif	2111	#endif
1634	}	2112	}
1635		2113
1636	unsigned int	2114	unsigned int ecb_cold
1637	ev_supported_backends (void)	2115	ev_supported_backends (void)
1638	{	2116	{
1639	unsigned int flags = 0;	2117	unsigned int flags = 0;
1640		2118
1641	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;	2119	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
…		…
1645	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;	2123	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
1646		2124
1647	return flags;	2125	return flags;
1648	}	2126	}
1649		2127
1650	unsigned int	2128	unsigned int ecb_cold
1651	ev_recommended_backends (void)	2129	ev_recommended_backends (void)
1652	{	2130	{
1653	unsigned int flags = ev_supported_backends ();	2131	unsigned int flags = ev_supported_backends ();
1654		2132
1655	#ifndef __NetBSD__	2133	#ifndef __NetBSD__
…		…
1667	#endif	2145	#endif
1668		2146
1669	return flags;	2147	return flags;
1670	}	2148	}
1671		2149
1672	unsigned int	2150	unsigned int ecb_cold
1673	ev_embeddable_backends (void)	2151	ev_embeddable_backends (void)
1674	{	2152	{
1675	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;	2153	int flags = EVBACKEND_EPOLL \| EVBACKEND_KQUEUE \| EVBACKEND_PORT;
1676		2154
1677	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2155	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
…		…
1722	ev_userdata (EV_P)	2200	ev_userdata (EV_P)
1723	{	2201	{
1724	return userdata;	2202	return userdata;
1725	}	2203	}
1726		2204
		2205	void
1727	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))	2206	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1728	{	2207	{
1729	invoke_cb = invoke_pending_cb;	2208	invoke_cb = invoke_pending_cb;
1730	}	2209	}
1731		2210
		2211	void
1732	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))	2212	ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P))
1733	{	2213	{
1734	release_cb = release;	2214	release_cb = release;
1735	acquire_cb = acquire;	2215	acquire_cb = acquire;
1736	}	2216	}
1737	#endif	2217	#endif
1738		2218
1739	/* initialise a loop structure, must be zero-initialised */	2219	/* initialise a loop structure, must be zero-initialised */
1740	static void noinline	2220	static void noinline ecb_cold
1741	loop_init (EV_P_ unsigned int flags)	2221	loop_init (EV_P_ unsigned int flags)
1742	{	2222	{
1743	if (!backend)	2223	if (!backend)
1744	{	2224	{
1745	origflags = flags;	2225	origflags = flags;
…		…
1830	#endif	2310	#endif
1831	}	2311	}
1832	}	2312	}
1833		2313
1834	/* free up a loop structure */	2314	/* free up a loop structure */
1835	void	2315	void ecb_cold
1836	ev_loop_destroy (EV_P)	2316	ev_loop_destroy (EV_P)
1837	{	2317	{
1838	int i;	2318	int i;
1839		2319
1840	#if EV_MULTIPLICITY	2320	#if EV_MULTIPLICITY
…		…
1998	postfork = 0;	2478	postfork = 0;
1999	}	2479	}
2000		2480
2001	#if EV_MULTIPLICITY	2481	#if EV_MULTIPLICITY
2002		2482
2003	struct ev_loop *	2483	struct ev_loop * ecb_cold
2004	ev_loop_new (unsigned int flags)	2484	ev_loop_new (unsigned int flags)
2005	{	2485	{
2006	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	2486	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2007		2487
2008	memset (EV_A, 0, sizeof (struct ev_loop));	2488	memset (EV_A, 0, sizeof (struct ev_loop));
…		…
2016	}	2496	}
2017		2497
2018	#endif /* multiplicity */	2498	#endif /* multiplicity */
2019		2499
2020	#if EV_VERIFY	2500	#if EV_VERIFY
2021	static void noinline	2501	static void noinline ecb_cold
2022	verify_watcher (EV_P_ W w)	2502	verify_watcher (EV_P_ W w)
2023	{	2503	{
2024	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	2504	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2025		2505
2026	if (w->pending)	2506	if (w->pending)
2027	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	2507	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2028	}	2508	}
2029		2509
2030	static void noinline	2510	static void noinline ecb_cold
2031	verify_heap (EV_P_ ANHE *heap, int N)	2511	verify_heap (EV_P_ ANHE *heap, int N)
2032	{	2512	{
2033	int i;	2513	int i;
2034		2514
2035	for (i = HEAP0; i < N + HEAP0; ++i)	2515	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2040		2520
2041	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	2521	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2042	}	2522	}
2043	}	2523	}
2044		2524
2045	static void noinline	2525	static void noinline ecb_cold
2046	array_verify (EV_P_ W *ws, int cnt)	2526	array_verify (EV_P_ W *ws, int cnt)
2047	{	2527	{
2048	while (cnt--)	2528	while (cnt--)
2049	{	2529	{
2050	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	2530	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2052	}	2532	}
2053	}	2533	}
2054	#endif	2534	#endif
2055		2535
2056	#if EV_FEATURE_API	2536	#if EV_FEATURE_API
2057	void	2537	void ecb_cold
2058	ev_verify (EV_P)	2538	ev_verify (EV_P)
2059	{	2539	{
2060	#if EV_VERIFY	2540	#if EV_VERIFY
2061	int i;	2541	int i;
2062	WL w;	2542	WL w;
…		…
2128	#endif	2608	#endif
2129	}	2609	}
2130	#endif	2610	#endif
2131		2611
2132	#if EV_MULTIPLICITY	2612	#if EV_MULTIPLICITY
2133	struct ev_loop *	2613	struct ev_loop * ecb_cold
2134	#else	2614	#else
2135	int	2615	int
2136	#endif	2616	#endif
2137	ev_default_loop (unsigned int flags)	2617	ev_default_loop (unsigned int flags)
2138	{	2618	{
…		…
2337	}	2817	}
2338	}	2818	}
2339		2819
2340	/* simply recalculate all periodics */	2820	/* simply recalculate all periodics */
2341	/* TODO: maybe ensure that at least one event happens when jumping forward? */	2821	/* TODO: maybe ensure that at least one event happens when jumping forward? */
2342	static void noinline	2822	static void noinline ecb_cold
2343	periodics_reschedule (EV_P)	2823	periodics_reschedule (EV_P)
2344	{	2824	{
2345	int i;	2825	int i;
2346		2826
2347	/* adjust periodics after time jump */	2827	/* adjust periodics after time jump */
…		…
2360	reheap (periodics, periodiccnt);	2840	reheap (periodics, periodiccnt);
2361	}	2841	}
2362	#endif	2842	#endif
2363		2843
2364	/* adjust all timers by a given offset */	2844	/* adjust all timers by a given offset */
2365	static void noinline	2845	static void noinline ecb_cold
2366	timers_reschedule (EV_P_ ev_tstamp adjust)	2846	timers_reschedule (EV_P_ ev_tstamp adjust)
2367	{	2847	{
2368	int i;	2848	int i;
2369		2849
2370	for (i = 0; i < timercnt; ++i)	2850	for (i = 0; i < timercnt; ++i)
…		…
2515	time_update (EV_A_ 1e100);	2995	time_update (EV_A_ 1e100);
2516		2996
2517	/* from now on, we want a pipe-wake-up */	2997	/* from now on, we want a pipe-wake-up */
2518	pipe_write_wanted = 1;	2998	pipe_write_wanted = 1;
2519		2999
		3000	ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
		3001
2520	if (expect_true (!(flags & EVRUN_NOWAIT \|\| idleall \|\| !activecnt \|\| pipe_write_skipped)))	3002	if (expect_true (!(flags & EVRUN_NOWAIT \|\| idleall \|\| !activecnt \|\| pipe_write_skipped)))
2521	{	3003	{
2522	waittime = MAX_BLOCKTIME;	3004	waittime = MAX_BLOCKTIME;
2523		3005
2524	if (timercnt)	3006	if (timercnt)
…		…
2565	#endif	3047	#endif
2566	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */	3048	assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2567	backend_poll (EV_A_ waittime);	3049	backend_poll (EV_A_ waittime);
2568	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */	3050	assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2569		3051
2570	pipe_write_wanted = 0;	3052	pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2571		3053
2572	if (pipe_write_skipped)	3054	if (pipe_write_skipped)
2573	{	3055	{
2574	assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));	3056	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);	3057	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
…		…
2833		3315
2834	void noinline	3316	void noinline
2835	ev_timer_again (EV_P_ ev_timer *w)	3317	ev_timer_again (EV_P_ ev_timer *w)
2836	{	3318	{
2837	EV_FREQUENT_CHECK;	3319	EV_FREQUENT_CHECK;
		3320
		3321	clear_pending (EV_A_ (W)w);
2838		3322
2839	if (ev_is_active (w))	3323	if (ev_is_active (w))
2840	{	3324	{
2841	if (w->repeat)	3325	if (w->repeat)
2842	{	3326	{
…		…
3236	infy_wd (EV_A_ ev->wd, ev->wd, ev);	3720	infy_wd (EV_A_ ev->wd, ev->wd, ev);
3237	ofs += sizeof (struct inotify_event) + ev->len;	3721	ofs += sizeof (struct inotify_event) + ev->len;
3238	}	3722	}
3239	}	3723	}
3240		3724
3241	inline_size void	3725	inline_size void ecb_cold
3242	ev_check_2625 (EV_P)	3726	ev_check_2625 (EV_P)
3243	{	3727	{
3244	/* kernels < 2.6.25 are borked	3728	/* kernels < 2.6.25 are borked
3245	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	3729	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3246	*/	3730	*/
…		…
3871	}	4355	}
3872		4356
3873	/*****************************************************************************/	4357	/*****************************************************************************/
3874		4358
3875	#if EV_WALK_ENABLE	4359	#if EV_WALK_ENABLE
3876	void	4360	void ecb_cold
3877	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))	4361	ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w))
3878	{	4362	{
3879	int i, j;	4363	int i, j;
3880	ev_watcher_list wl, wn;	4364	ev_watcher_list wl, wn;
3881		4365
…		…
3925	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));	4409	cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3926	#endif	4410	#endif
3927		4411
3928	#if EV_IDLE_ENABLE	4412	#if EV_IDLE_ENABLE
3929	if (types & EV_IDLE)	4413	if (types & EV_IDLE)
3930	for (j = NUMPRI; i--; )	4414	for (j = NUMPRI; j--; )
3931	for (i = idlecnt [j]; i--; )	4415	for (i = idlecnt [j]; i--; )
3932	cb (EV_A_ EV_IDLE, idles [j][i]);	4416	cb (EV_A_ EV_IDLE, idles [j][i]);
3933	#endif	4417	#endif
3934		4418
3935	#if EV_FORK_ENABLE	4419	#if EV_FORK_ENABLE
…		…
3988		4472
3989	#if EV_MULTIPLICITY	4473	#if EV_MULTIPLICITY
3990	#include "ev_wrap.h"	4474	#include "ev_wrap.h"
3991	#endif	4475	#endif
3992		4476
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 1.410 by root, Sat Feb 4 17:57:55 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 1.410 by root, Sat Feb 4 17:57:55 2012 UTC