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Comparing libev/ev.c (file contents):
Revision 1.397 by root, Wed Aug 24 16:13:41 2011 UTC vs.
Revision 1.419 by root, Thu Apr 12 04:10:15 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
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
188EV_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>
… …
210#define _DARWIN_UNLIMITED_SELECT 1 219#define _DARWIN_UNLIMITED_SELECT 1
211 220
212/* this block tries to deduce configuration from header-defined symbols and defaults */ 221/* this block tries to deduce configuration from header-defined symbols and defaults */
213 222
214/* try to deduce the maximum number of signals on this platform */ 223/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG) 224#if defined EV_NSIG
216/* use what's provided */ 225/* use what's provided */
217#elif defined (NSIG) 226#elif defined NSIG
218# define EV_NSIG (NSIG) 227# define EV_NSIG (NSIG)
219#elif defined(_NSIG) 228#elif defined _NSIG
220# define EV_NSIG (_NSIG) 229# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX) 230#elif defined SIGMAX
222# define EV_NSIG (SIGMAX+1) 231# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX) 232#elif defined SIG_MAX
224# define EV_NSIG (SIG_MAX+1) 233# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX) 234#elif defined _SIG_MAX
226# define EV_NSIG (_SIG_MAX+1) 235# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG) 236#elif defined MAXSIG
228# define EV_NSIG (MAXSIG+1) 237# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG) 238#elif defined MAX_SIG
230# define EV_NSIG (MAX_SIG+1) 239# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE) 240#elif defined SIGARRAYSIZE
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig) 242#elif defined _sys_nsig
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else 244#else
236# error "unable to find value for NSIG, please report" 245# error "unable to find value for NSIG, please report"
237/* to make it compile regardless, just remove the above line, */ 246/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */ 247/* but consider reporting it, too! :) */
… …
250# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
251# endif 260# endif
252#endif 261#endif
253 262
254#ifndef EV_USE_MONOTONIC 263#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 264# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 265# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 266# else
258# define EV_USE_MONOTONIC 0 267# define EV_USE_MONOTONIC 0
259# endif 268# endif
260#endif 269#endif
… …
386# define EV_USE_INOTIFY 0 395# define EV_USE_INOTIFY 0
387#endif 396#endif
388 397
389#if !EV_USE_NANOSLEEP 398#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 399/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 400# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 401# include <sys/select.h>
393# endif 402# endif
394#endif 403#endif
395 404
396#if EV_USE_INOTIFY 405#if EV_USE_INOTIFY
… …
469/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470/* ECB.H BEGIN */ 479/* ECB.H BEGIN */
471/* 480/*
472 * libecb - http://software.schmorp.de/pkg/libecb 481 * libecb - http://software.schmorp.de/pkg/libecb
473 * 482 *
474 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> 483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
475 * Copyright (©) 2011 Emanuele Giaquinta 484 * Copyright (©) 2011 Emanuele Giaquinta
476 * All rights reserved. 485 * All rights reserved.
477 * 486 *
478 * Redistribution and use in source and binary forms, with or without modifica- 487 * Redistribution and use in source and binary forms, with or without modifica-
479 * tion, are permitted provided that the following conditions are met: 488 * tion, are permitted provided that the following conditions are met:
… …
524 * or so. 533 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have 534 * we try to detect these and simply assume they are not gcc - if they have
526 * an issue with that they should have done it right in the first place. 535 * an issue with that they should have done it right in the first place.
527 */ 536 */
528#ifndef ECB_GCC_VERSION 537#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 538 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
530 #define ECB_GCC_VERSION(major,minor) 0 539 #define ECB_GCC_VERSION(major,minor) 0
531 #else 540 #else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
533 #endif 542 #endif
534#endif 543#endif
… …
536/*****************************************************************************/ 545/*****************************************************************************/
537 546
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
539/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540 549
550#if ECB_NO_THREADS
551# define ECB_NO_SMP 1
552#endif
553
541#if ECB_NO_THREADS || ECB_NO_SMP 554#if ECB_NO_THREADS || ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0) 555 #define ECB_MEMORY_FENCE do { } while (0)
543#endif 556#endif
544 557
545#ifndef ECB_MEMORY_FENCE 558#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5) 559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
547 #if __i386__ 560 #if __i386 || __i386__
548 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
549 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
551 #elif __amd64 564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
554 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
559 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
560 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 573 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 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 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
563 #endif 586 #endif
564 #endif 587 #endif
565#endif 588#endif
566 589
567#ifndef ECB_MEMORY_FENCE 590#ifndef ECB_MEMORY_FENCE
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) 591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
569 #define ECB_MEMORY_FENCE __sync_synchronize () 592 #define ECB_MEMORY_FENCE __sync_synchronize ()
570 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
571 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
572 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 595 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 597 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32) 600 #elif defined _WIN32
578 #include <WinNT.h> 601 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 602 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
603 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
604 #include <mbarrier.h>
605 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
606 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
607 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
608 #elif __xlC__
609 #define ECB_MEMORY_FENCE __sync ()
580 #endif 610 #endif
581#endif 611#endif
582 612
583#ifndef ECB_MEMORY_FENCE 613#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS 614 #if !ECB_AVOID_PTHREADS
… …
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 626 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
597 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 627 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif 628 #endif
599#endif 629#endif
600 630
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 631#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 632 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif 633#endif
604 634
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 635#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif 637#endif
608 638
609/*****************************************************************************/ 639/*****************************************************************************/
610 640
… …
759 789
760 return r + ecb_ld32 (x); 790 return r + ecb_ld32 (x);
761 } 791 }
762#endif 792#endif
763 793
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{
797 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
799}
800
801ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
802ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
803{
804 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
805 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
806 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
807 x = ( x >> 8 ) | ( x << 8);
808
809 return x;
810}
811
812ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
813ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
814{
815 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
816 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
817 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
818 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
819 x = ( x >> 16 ) | ( x << 16);
820
821 return x;
822}
823
764/* popcount64 is only available on 64 bit cpus as gcc builtin */ 824/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */ 825/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 826ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int 827ecb_function_ int
768ecb_popcount64 (uint64_t x) 828ecb_popcount64 (uint64_t x)
… …
817 877
818#if ECB_GCC_VERSION(4,5) 878#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable () 879 #define ecb_unreachable() __builtin_unreachable ()
820#else 880#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */ 881 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 882 ecb_inline void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { } 883 ecb_inline void ecb_unreachable (void) { }
824#endif 884#endif
825 885
826/* try to tell the compiler that some condition is definitely true */ 886/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 887#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
828 888
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 889ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char 890ecb_inline unsigned char
831ecb_byteorder_helper (void) 891ecb_byteorder_helper (void)
832{ 892{
833 const uint32_t u = 0x11223344; 893 const uint32_t u = 0x11223344;
834 return *(unsigned char *)&u; 894 return *(unsigned char *)&u;
835} 895}
836 896
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 897ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 898ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 899ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 900ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841 901
842#if ECB_GCC_VERSION(3,0) || ECB_C99 902#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 903 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else 904#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 905 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
906#endif
907
908#if __cplusplus
909 template<typename T>
910 static inline T ecb_div_rd (T val, T div)
911 {
912 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
913 }
914 template<typename T>
915 static inline T ecb_div_ru (T val, T div)
916 {
917 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
918 }
919#else
920 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
921 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
846#endif 922#endif
847 923
848#if ecb_cplusplus_does_not_suck 924#if ecb_cplusplus_does_not_suck
849 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 925 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
850 template<typename T, int N> 926 template<typename T, int N>
… …
862 938
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 939#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
864/* if your architecture doesn't need memory fences, e.g. because it is 940/* if your architecture doesn't need memory fences, e.g. because it is
865 * single-cpu/core, or if you use libev in a project that doesn't use libev 941 * single-cpu/core, or if you use libev in a project that doesn't use libev
866 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 942 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
867 * libev, in which casess the memory fences become nops. 943 * libev, in which cases the memory fences become nops.
868 * alternatively, you can remove this #error and link against libpthread, 944 * alternatively, you can remove this #error and link against libpthread,
869 * which will then provide the memory fences. 945 * which will then provide the memory fences.
870 */ 946 */
871# error "memory fences not defined for your architecture, please report" 947# error "memory fences not defined for your architecture, please report"
872#endif 948#endif
… …
1179 #undef VAR 1255 #undef VAR
1180 }; 1256 };
1181 #include "ev_wrap.h" 1257 #include "ev_wrap.h"
1182 1258
1183 static struct ev_loop default_loop_struct; 1259 static struct ev_loop default_loop_struct;
1184 struct ev_loop *ev_default_loop_ptr; 1260 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1185 1261
1186#else 1262#else
1187 1263
1188 ev_tstamp ev_rt_now; 1264 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1189 #define VAR(name,decl) static decl; 1265 #define VAR(name,decl) static decl;
1190 #include "ev_vars.h" 1266 #include "ev_vars.h"
1191 #undef VAR 1267 #undef VAR
1192 1268
1193 static int ev_default_loop_ptr; 1269 static int ev_default_loop_ptr;
… …
1258#if EV_USE_NANOSLEEP 1334#if EV_USE_NANOSLEEP
1259 struct timespec ts; 1335 struct timespec ts;
1260 1336
1261 EV_TS_SET (ts, delay); 1337 EV_TS_SET (ts, delay);
1262 nanosleep (&ts, 0); 1338 nanosleep (&ts, 0);
1263#elif defined(_WIN32) 1339#elif defined _WIN32
1264 Sleep ((unsigned long)(delay * 1e3)); 1340 Sleep ((unsigned long)(delay * 1e3));
1265#else 1341#else
1266 struct timeval tv; 1342 struct timeval tv;
1267 1343
1268 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1344 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1287 1363
1288 do 1364 do
1289 ncur <<= 1; 1365 ncur <<= 1;
1290 while (cnt > ncur); 1366 while (cnt > ncur);
1291 1367
1292 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1368 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1293 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1369 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1294 { 1370 {
1295 ncur *= elem; 1371 ncur *= elem;
1296 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1372 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1297 ncur = ncur - sizeof (void *) * 4; 1373 ncur = ncur - sizeof (void *) * 4;
… …
1801 /* win32 people keep sending patches that change this write() to send() */ 1877 /* win32 people keep sending patches that change this write() to send() */
1802 /* and then run away. but send() is wrong, it wants a socket handle on win32 */ 1878 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1803 /* so when you think this write should be a send instead, please find out */ 1879 /* so when you think this write should be a send instead, please find out */
1804 /* where your send() is from - it's definitely not the microsoft send, and */ 1880 /* where your send() is from - it's definitely not the microsoft send, and */
1805 /* tell me. thank you. */ 1881 /* tell me. thank you. */
1882 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1883 /* check the ev documentation on how to use this flag */
1806 write (evpipe [1], &(evpipe [1]), 1); 1884 write (evpipe [1], &(evpipe [1]), 1);
1807 } 1885 }
1808 1886
1809 errno = old_errno; 1887 errno = old_errno;
1810 } 1888 }
… …
2854 2932
2855 mn_now = ev_rt_now; 2933 mn_now = ev_rt_now;
2856 } 2934 }
2857} 2935}
2858 2936
2859void 2937int
2860ev_run (EV_P_ int flags) 2938ev_run (EV_P_ int flags)
2861{ 2939{
2862#if EV_FEATURE_API 2940#if EV_FEATURE_API
2863 ++loop_depth; 2941 ++loop_depth;
2864#endif 2942#endif
… …
2977#endif 3055#endif
2978 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3056 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2979 backend_poll (EV_A_ waittime); 3057 backend_poll (EV_A_ waittime);
2980 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3058 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2981 3059
2982 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3060 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2983 3061
2984 if (pipe_write_skipped) 3062 if (pipe_write_skipped)
2985 { 3063 {
2986 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3064 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2987 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3065 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
… …
3021 loop_done = EVBREAK_CANCEL; 3099 loop_done = EVBREAK_CANCEL;
3022 3100
3023#if EV_FEATURE_API 3101#if EV_FEATURE_API
3024 --loop_depth; 3102 --loop_depth;
3025#endif 3103#endif
3104
3105 return activecnt;
3026} 3106}
3027 3107
3028void 3108void
3029ev_break (EV_P_ int how) 3109ev_break (EV_P_ int how)
3030{ 3110{
… …
3245 3325
3246void noinline 3326void noinline
3247ev_timer_again (EV_P_ ev_timer *w) 3327ev_timer_again (EV_P_ ev_timer *w)
3248{ 3328{
3249 EV_FREQUENT_CHECK; 3329 EV_FREQUENT_CHECK;
3330
3331 clear_pending (EV_A_ (W)w);
3250 3332
3251 if (ev_is_active (w)) 3333 if (ev_is_active (w))
3252 { 3334 {
3253 if (w->repeat) 3335 if (w->repeat)
3254 { 3336 {
… …
3663} 3745}
3664 3746
3665inline_size int 3747inline_size int
3666infy_newfd (void) 3748infy_newfd (void)
3667{ 3749{
3668#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3750#if defined IN_CLOEXEC && defined IN_NONBLOCK
3669 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3751 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3670 if (fd >= 0) 3752 if (fd >= 0)
3671 return fd; 3753 return fd;
3672#endif 3754#endif
3673 return inotify_init (); 3755 return inotify_init ();
… …
4400 4482
4401#if EV_MULTIPLICITY 4483#if EV_MULTIPLICITY
4402 #include "ev_wrap.h" 4484 #include "ev_wrap.h"
4403#endif 4485#endif
4404 4486
4405EV_CPP(})
4406

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