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Comparing libev/ev.c (file contents):
Revision 1.407 by root, Wed Jan 25 01:32:12 2012 UTC vs.
Revision 1.428 by root, Tue May 8 15:44:09 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
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
198
188#ifndef _WIN32 199#ifndef _WIN32
189# include <sys/time.h> 200# include <sys/time.h>
190# include <sys/wait.h> 201# include <sys/wait.h>
191# include <unistd.h> 202# include <unistd.h>
192#else 203#else
193# include <io.h> 204# include <io.h>
194# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
195# include <windows.h> 206# include <windows.h>
207# include <winsock2.h>
196# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
197# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
198# endif 210# endif
199# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
200#endif 212#endif
… …
208#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
209 221
210/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
211 223
212/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
213#if defined (EV_NSIG) 225#if defined EV_NSIG
214/* use what's provided */ 226/* use what's provided */
215#elif defined (NSIG) 227#elif defined NSIG
216# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
217#elif defined(_NSIG) 229#elif defined _NSIG
218# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
219#elif defined (SIGMAX) 231#elif defined SIGMAX
220# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
221#elif defined (SIG_MAX) 233#elif defined SIG_MAX
222# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
223#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
224# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
225#elif defined (MAXSIG) 237#elif defined MAXSIG
226# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
227#elif defined (MAX_SIG) 239#elif defined MAX_SIG
228# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
229#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
230# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
231#elif defined (_sys_nsig) 243#elif defined _sys_nsig
232# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
233#else 245#else
234# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
235/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
236/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
… …
248# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
249# endif 261# endif
250#endif 262#endif
251 263
252#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
253# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
254# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
255# else 267# else
256# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
257# endif 269# endif
258#endif 270#endif
… …
348#endif 360#endif
349 361
350/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
351/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
352#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
353# include <syscall.h> 365# include <sys/syscall.h>
354# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
355# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
356# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
357# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
358# else 370# else
… …
384# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
385#endif 397#endif
386 398
387#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
388/* hp-ux has it in sys/time.h, which we unconditionally include above */ 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
389# if !defined(_WIN32) && !defined(__hpux) 401# if !defined _WIN32 && !defined __hpux
390# include <sys/select.h> 402# include <sys/select.h>
391# endif 403# endif
392#endif 404#endif
393 405
394#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
… …
522 * or so. 534 * or so.
523 * we try to detect these and simply assume they are not gcc - if they have 535 * we try to detect these and simply assume they are not gcc - if they have
524 * an issue with that they should have done it right in the first place. 536 * an issue with that they should have done it right in the first place.
525 */ 537 */
526#ifndef ECB_GCC_VERSION 538#ifndef ECB_GCC_VERSION
527 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 539 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
528 #define ECB_GCC_VERSION(major,minor) 0 540 #define ECB_GCC_VERSION(major,minor) 0
529 #else 541 #else
530 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 542 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
531 #endif 543 #endif
532#endif 544#endif
… …
534/*****************************************************************************/ 546/*****************************************************************************/
535 547
536/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 548/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
537/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 549/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
538 550
551#if ECB_NO_THREADS
552# define ECB_NO_SMP 1
553#endif
554
539#if ECB_NO_THREADS || ECB_NO_SMP 555#if ECB_NO_THREADS || ECB_NO_SMP
540 #define ECB_MEMORY_FENCE do { } while (0) 556 #define ECB_MEMORY_FENCE do { } while (0)
541#endif 557#endif
542 558
543#ifndef ECB_MEMORY_FENCE 559#ifndef ECB_MEMORY_FENCE
544 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || defined(__clang__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 560 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
545 #if __i386 || __i386__ 561 #if __i386 || __i386__
546 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
547 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 563 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
548 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 564 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
549 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 565 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
550 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
551 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 567 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
552 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 568 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
553 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 569 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
554 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 570 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
555 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 571 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
556 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 572 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
557 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 573 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
558 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 574 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
559 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 575 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
560 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 576 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
561 #elif __sparc || __sparc__ 577 #elif __sparc || __sparc__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 579 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 580 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
581 #elif defined __s390__ || defined __s390x__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
583 #elif defined __mips__
584 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
585 #elif defined __alpha__
586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
565 #endif 587 #endif
566 #endif 588 #endif
567#endif 589#endif
568 590
569#ifndef ECB_MEMORY_FENCE 591#ifndef ECB_MEMORY_FENCE
570 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 592 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
571 #define ECB_MEMORY_FENCE __sync_synchronize () 593 #define ECB_MEMORY_FENCE __sync_synchronize ()
572 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 594 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
573 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 595 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
574 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 596 #elif _MSC_VER >= 1400 /* VC++ 2005 */
575 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 597 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
576 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 598 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
577 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 599 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
578 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 600 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
579 #elif defined(_WIN32) 601 #elif defined _WIN32
580 #include <WinNT.h> 602 #include <WinNT.h>
581 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 603 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
582 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 604 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
583 #include <mbarrier.h> 605 #include <mbarrier.h>
584 #define ECB_MEMORY_FENCE __machine_rw_barrier () 606 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
585 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 607 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
586 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 608 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
609 #elif __xlC__
610 #define ECB_MEMORY_FENCE __sync ()
587 #endif 611 #endif
588#endif 612#endif
589 613
590#ifndef ECB_MEMORY_FENCE 614#ifndef ECB_MEMORY_FENCE
591 #if !ECB_AVOID_PTHREADS 615 #if !ECB_AVOID_PTHREADS
… …
603 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 627 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
604 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 628 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
605 #endif 629 #endif
606#endif 630#endif
607 631
608#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 632#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
609 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 633 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
610#endif 634#endif
611 635
612#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 636#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
613 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 637 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
614#endif 638#endif
615 639
616/*****************************************************************************/ 640/*****************************************************************************/
617 641
… …
854 878
855#if ECB_GCC_VERSION(4,5) 879#if ECB_GCC_VERSION(4,5)
856 #define ecb_unreachable() __builtin_unreachable () 880 #define ecb_unreachable() __builtin_unreachable ()
857#else 881#else
858 /* this seems to work fine, but gcc always emits a warning for it :/ */ 882 /* this seems to work fine, but gcc always emits a warning for it :/ */
859 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 883 ecb_inline void ecb_unreachable (void) ecb_noreturn;
860 ecb_function_ void ecb_unreachable (void) { } 884 ecb_inline void ecb_unreachable (void) { }
861#endif 885#endif
862 886
863/* try to tell the compiler that some condition is definitely true */ 887/* try to tell the compiler that some condition is definitely true */
864#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 888#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
865 889
866ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 890ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
867ecb_function_ unsigned char 891ecb_inline unsigned char
868ecb_byteorder_helper (void) 892ecb_byteorder_helper (void)
869{ 893{
870 const uint32_t u = 0x11223344; 894 const uint32_t u = 0x11223344;
871 return *(unsigned char *)&u; 895 return *(unsigned char *)&u;
872} 896}
873 897
874ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 898ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
875ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 899ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
876ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 900ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
877ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 901ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
878 902
879#if ECB_GCC_VERSION(3,0) || ECB_C99 903#if ECB_GCC_VERSION(3,0) || ECB_C99
880 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 904 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
881#else 905#else
882 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 906 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
… …
1082{ 1106{
1083 write (STDERR_FILENO, msg, strlen (msg)); 1107 write (STDERR_FILENO, msg, strlen (msg));
1084} 1108}
1085#endif 1109#endif
1086 1110
1087static void (*syserr_cb)(const char *msg); 1111static void (*syserr_cb)(const char *msg) EV_THROW;
1088 1112
1089void ecb_cold 1113void ecb_cold
1090ev_set_syserr_cb (void (*cb)(const char *msg)) 1114ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW
1091{ 1115{
1092 syserr_cb = cb; 1116 syserr_cb = cb;
1093} 1117}
1094 1118
1095static void noinline ecb_cold 1119static void noinline ecb_cold
… …
1131 free (ptr); 1155 free (ptr);
1132 return 0; 1156 return 0;
1133#endif 1157#endif
1134} 1158}
1135 1159
1136static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1160static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1137 1161
1138void ecb_cold 1162void ecb_cold
1139ev_set_allocator (void *(*cb)(void *ptr, long size)) 1163ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW
1140{ 1164{
1141 alloc = cb; 1165 alloc = cb;
1142} 1166}
1143 1167
1144inline_speed void * 1168inline_speed void *
… …
1261 1285
1262/*****************************************************************************/ 1286/*****************************************************************************/
1263 1287
1264#ifndef EV_HAVE_EV_TIME 1288#ifndef EV_HAVE_EV_TIME
1265ev_tstamp 1289ev_tstamp
1266ev_time (void) 1290ev_time (void) EV_THROW
1267{ 1291{
1268#if EV_USE_REALTIME 1292#if EV_USE_REALTIME
1269 if (expect_true (have_realtime)) 1293 if (expect_true (have_realtime))
1270 { 1294 {
1271 struct timespec ts; 1295 struct timespec ts;
… …
1295 return ev_time (); 1319 return ev_time ();
1296} 1320}
1297 1321
1298#if EV_MULTIPLICITY 1322#if EV_MULTIPLICITY
1299ev_tstamp 1323ev_tstamp
1300ev_now (EV_P) 1324ev_now (EV_P) EV_THROW
1301{ 1325{
1302 return ev_rt_now; 1326 return ev_rt_now;
1303} 1327}
1304#endif 1328#endif
1305 1329
1306void 1330void
1307ev_sleep (ev_tstamp delay) 1331ev_sleep (ev_tstamp delay) EV_THROW
1308{ 1332{
1309 if (delay > 0.) 1333 if (delay > 0.)
1310 { 1334 {
1311#if EV_USE_NANOSLEEP 1335#if EV_USE_NANOSLEEP
1312 struct timespec ts; 1336 struct timespec ts;
1313 1337
1314 EV_TS_SET (ts, delay); 1338 EV_TS_SET (ts, delay);
1315 nanosleep (&ts, 0); 1339 nanosleep (&ts, 0);
1316#elif defined(_WIN32) 1340#elif defined _WIN32
1317 Sleep ((unsigned long)(delay * 1e3)); 1341 Sleep ((unsigned long)(delay * 1e3));
1318#else 1342#else
1319 struct timeval tv; 1343 struct timeval tv;
1320 1344
1321 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1345 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1393pendingcb (EV_P_ ev_prepare *w, int revents) 1417pendingcb (EV_P_ ev_prepare *w, int revents)
1394{ 1418{
1395} 1419}
1396 1420
1397void noinline 1421void noinline
1398ev_feed_event (EV_P_ void *w, int revents) 1422ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1399{ 1423{
1400 W w_ = (W)w; 1424 W w_ = (W)w;
1401 int pri = ABSPRI (w_); 1425 int pri = ABSPRI (w_);
1402 1426
1403 if (expect_false (w_->pending)) 1427 if (expect_false (w_->pending))
… …
1407 w_->pending = ++pendingcnt [pri]; 1431 w_->pending = ++pendingcnt [pri];
1408 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1432 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1409 pendings [pri][w_->pending - 1].w = w_; 1433 pendings [pri][w_->pending - 1].w = w_;
1410 pendings [pri][w_->pending - 1].events = revents; 1434 pendings [pri][w_->pending - 1].events = revents;
1411 } 1435 }
1436
1437 pendingpri = NUMPRI - 1;
1412} 1438}
1413 1439
1414inline_speed void 1440inline_speed void
1415feed_reverse (EV_P_ W w) 1441feed_reverse (EV_P_ W w)
1416{ 1442{
… …
1462 if (expect_true (!anfd->reify)) 1488 if (expect_true (!anfd->reify))
1463 fd_event_nocheck (EV_A_ fd, revents); 1489 fd_event_nocheck (EV_A_ fd, revents);
1464} 1490}
1465 1491
1466void 1492void
1467ev_feed_fd_event (EV_P_ int fd, int revents) 1493ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1468{ 1494{
1469 if (fd >= 0 && fd < anfdmax) 1495 if (fd >= 0 && fd < anfdmax)
1470 fd_event_nocheck (EV_A_ fd, revents); 1496 fd_event_nocheck (EV_A_ fd, revents);
1471} 1497}
1472 1498
… …
1821} 1847}
1822 1848
1823inline_speed void 1849inline_speed void
1824evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1850evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1825{ 1851{
1852 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1853
1826 if (expect_true (*flag)) 1854 if (expect_true (*flag))
1827 return; 1855 return;
1828 1856
1829 *flag = 1; 1857 *flag = 1;
1830 1858
… …
1849 write (evfd, &counter, sizeof (uint64_t)); 1877 write (evfd, &counter, sizeof (uint64_t));
1850 } 1878 }
1851 else 1879 else
1852#endif 1880#endif
1853 { 1881 {
1854 /* win32 people keep sending patches that change this write() to send() */ 1882#ifdef _WIN32
1855 /* and then run away. but send() is wrong, it wants a socket handle on win32 */ 1883 WSABUF buf;
1856 /* so when you think this write should be a send instead, please find out */ 1884 DWORD sent;
1857 /* where your send() is from - it's definitely not the microsoft send, and */ 1885 buf.buf = &buf;
1858 /* tell me. thank you. */ 1886 buf.len = 1;
1887 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1888#else
1859 write (evpipe [1], &(evpipe [1]), 1); 1889 write (evpipe [1], &(evpipe [1]), 1);
1890#endif
1860 } 1891 }
1861 1892
1862 errno = old_errno; 1893 errno = old_errno;
1863 } 1894 }
1864} 1895}
… …
1879 read (evfd, &counter, sizeof (uint64_t)); 1910 read (evfd, &counter, sizeof (uint64_t));
1880 } 1911 }
1881 else 1912 else
1882#endif 1913#endif
1883 { 1914 {
1884 char dummy; 1915 char dummy[4];
1885 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 1916#ifdef _WIN32
1917 WSABUF buf;
1918 DWORD recvd;
1919 buf.buf = dummy;
1920 buf.len = sizeof (dummy);
1921 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0);
1922#else
1886 read (evpipe [0], &dummy, 1); 1923 read (evpipe [0], &dummy, sizeof (dummy));
1924#endif
1887 } 1925 }
1888 } 1926 }
1889 1927
1890 pipe_write_skipped = 0; 1928 pipe_write_skipped = 0;
1929
1930 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1891 1931
1892#if EV_SIGNAL_ENABLE 1932#if EV_SIGNAL_ENABLE
1893 if (sig_pending) 1933 if (sig_pending)
1894 { 1934 {
1895 sig_pending = 0; 1935 sig_pending = 0;
1936
1937 ECB_MEMORY_FENCE_RELEASE;
1896 1938
1897 for (i = EV_NSIG - 1; i--; ) 1939 for (i = EV_NSIG - 1; i--; )
1898 if (expect_false (signals [i].pending)) 1940 if (expect_false (signals [i].pending))
1899 ev_feed_signal_event (EV_A_ i + 1); 1941 ev_feed_signal_event (EV_A_ i + 1);
1900 } 1942 }
… …
1902 1944
1903#if EV_ASYNC_ENABLE 1945#if EV_ASYNC_ENABLE
1904 if (async_pending) 1946 if (async_pending)
1905 { 1947 {
1906 async_pending = 0; 1948 async_pending = 0;
1949
1950 ECB_MEMORY_FENCE_RELEASE;
1907 1951
1908 for (i = asynccnt; i--; ) 1952 for (i = asynccnt; i--; )
1909 if (asyncs [i]->sent) 1953 if (asyncs [i]->sent)
1910 { 1954 {
1911 asyncs [i]->sent = 0; 1955 asyncs [i]->sent = 0;
… …
1916} 1960}
1917 1961
1918/*****************************************************************************/ 1962/*****************************************************************************/
1919 1963
1920void 1964void
1921ev_feed_signal (int signum) 1965ev_feed_signal (int signum) EV_THROW
1922{ 1966{
1923#if EV_MULTIPLICITY 1967#if EV_MULTIPLICITY
1924 EV_P = signals [signum - 1].loop; 1968 EV_P = signals [signum - 1].loop;
1925 1969
1926 if (!EV_A) 1970 if (!EV_A)
… …
1943 1987
1944 ev_feed_signal (signum); 1988 ev_feed_signal (signum);
1945} 1989}
1946 1990
1947void noinline 1991void noinline
1948ev_feed_signal_event (EV_P_ int signum) 1992ev_feed_signal_event (EV_P_ int signum) EV_THROW
1949{ 1993{
1950 WL w; 1994 WL w;
1951 1995
1952 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1996 if (expect_false (signum <= 0 || signum > EV_NSIG))
1953 return; 1997 return;
… …
2069#if EV_USE_SELECT 2113#if EV_USE_SELECT
2070# include "ev_select.c" 2114# include "ev_select.c"
2071#endif 2115#endif
2072 2116
2073int ecb_cold 2117int ecb_cold
2074ev_version_major (void) 2118ev_version_major (void) EV_THROW
2075{ 2119{
2076 return EV_VERSION_MAJOR; 2120 return EV_VERSION_MAJOR;
2077} 2121}
2078 2122
2079int ecb_cold 2123int ecb_cold
2080ev_version_minor (void) 2124ev_version_minor (void) EV_THROW
2081{ 2125{
2082 return EV_VERSION_MINOR; 2126 return EV_VERSION_MINOR;
2083} 2127}
2084 2128
2085/* return true if we are running with elevated privileges and should ignore env variables */ 2129/* return true if we are running with elevated privileges and should ignore env variables */
… …
2093 || getgid () != getegid (); 2137 || getgid () != getegid ();
2094#endif 2138#endif
2095} 2139}
2096 2140
2097unsigned int ecb_cold 2141unsigned int ecb_cold
2098ev_supported_backends (void) 2142ev_supported_backends (void) EV_THROW
2099{ 2143{
2100 unsigned int flags = 0; 2144 unsigned int flags = 0;
2101 2145
2102 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2146 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2103 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2147 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2107 2151
2108 return flags; 2152 return flags;
2109} 2153}
2110 2154
2111unsigned int ecb_cold 2155unsigned int ecb_cold
2112ev_recommended_backends (void) 2156ev_recommended_backends (void) EV_THROW
2113{ 2157{
2114 unsigned int flags = ev_supported_backends (); 2158 unsigned int flags = ev_supported_backends ();
2115 2159
2116#ifndef __NetBSD__ 2160#ifndef __NetBSD__
2117 /* kqueue is borked on everything but netbsd apparently */ 2161 /* kqueue is borked on everything but netbsd apparently */
… …
2129 2173
2130 return flags; 2174 return flags;
2131} 2175}
2132 2176
2133unsigned int ecb_cold 2177unsigned int ecb_cold
2134ev_embeddable_backends (void) 2178ev_embeddable_backends (void) EV_THROW
2135{ 2179{
2136 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2137 2181
2138 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2139 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2183 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2141 2185
2142 return flags; 2186 return flags;
2143} 2187}
2144 2188
2145unsigned int 2189unsigned int
2146ev_backend (EV_P) 2190ev_backend (EV_P) EV_THROW
2147{ 2191{
2148 return backend; 2192 return backend;
2149} 2193}
2150 2194
2151#if EV_FEATURE_API 2195#if EV_FEATURE_API
2152unsigned int 2196unsigned int
2153ev_iteration (EV_P) 2197ev_iteration (EV_P) EV_THROW
2154{ 2198{
2155 return loop_count; 2199 return loop_count;
2156} 2200}
2157 2201
2158unsigned int 2202unsigned int
2159ev_depth (EV_P) 2203ev_depth (EV_P) EV_THROW
2160{ 2204{
2161 return loop_depth; 2205 return loop_depth;
2162} 2206}
2163 2207
2164void 2208void
2165ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2209ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2166{ 2210{
2167 io_blocktime = interval; 2211 io_blocktime = interval;
2168} 2212}
2169 2213
2170void 2214void
2171ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2215ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2172{ 2216{
2173 timeout_blocktime = interval; 2217 timeout_blocktime = interval;
2174} 2218}
2175 2219
2176void 2220void
2177ev_set_userdata (EV_P_ void *data) 2221ev_set_userdata (EV_P_ void *data) EV_THROW
2178{ 2222{
2179 userdata = data; 2223 userdata = data;
2180} 2224}
2181 2225
2182void * 2226void *
2183ev_userdata (EV_P) 2227ev_userdata (EV_P) EV_THROW
2184{ 2228{
2185 return userdata; 2229 return userdata;
2186} 2230}
2187 2231
2188void 2232void
2189ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2233ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2190{ 2234{
2191 invoke_cb = invoke_pending_cb; 2235 invoke_cb = invoke_pending_cb;
2192} 2236}
2193 2237
2194void 2238void
2195ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2239ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2196{ 2240{
2197 release_cb = release; 2241 release_cb = release;
2198 acquire_cb = acquire; 2242 acquire_cb = acquire;
2199} 2243}
2200#endif 2244#endif
2201 2245
2202/* initialise a loop structure, must be zero-initialised */ 2246/* initialise a loop structure, must be zero-initialised */
2203static void noinline ecb_cold 2247static void noinline ecb_cold
2204loop_init (EV_P_ unsigned int flags) 2248loop_init (EV_P_ unsigned int flags) EV_THROW
2205{ 2249{
2206 if (!backend) 2250 if (!backend)
2207 { 2251 {
2208 origflags = flags; 2252 origflags = flags;
2209 2253
… …
2462} 2506}
2463 2507
2464#if EV_MULTIPLICITY 2508#if EV_MULTIPLICITY
2465 2509
2466struct ev_loop * ecb_cold 2510struct ev_loop * ecb_cold
2467ev_loop_new (unsigned int flags) 2511ev_loop_new (unsigned int flags) EV_THROW
2468{ 2512{
2469 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2513 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2470 2514
2471 memset (EV_A, 0, sizeof (struct ev_loop)); 2515 memset (EV_A, 0, sizeof (struct ev_loop));
2472 loop_init (EV_A_ flags); 2516 loop_init (EV_A_ flags);
… …
2516} 2560}
2517#endif 2561#endif
2518 2562
2519#if EV_FEATURE_API 2563#if EV_FEATURE_API
2520void ecb_cold 2564void ecb_cold
2521ev_verify (EV_P) 2565ev_verify (EV_P) EV_THROW
2522{ 2566{
2523#if EV_VERIFY 2567#if EV_VERIFY
2524 int i; 2568 int i, j;
2525 WL w; 2569 WL w, w2;
2526 2570
2527 assert (activecnt >= -1); 2571 assert (activecnt >= -1);
2528 2572
2529 assert (fdchangemax >= fdchangecnt); 2573 assert (fdchangemax >= fdchangecnt);
2530 for (i = 0; i < fdchangecnt; ++i) 2574 for (i = 0; i < fdchangecnt; ++i)
2531 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2575 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2532 2576
2533 assert (anfdmax >= 0); 2577 assert (anfdmax >= 0);
2534 for (i = 0; i < anfdmax; ++i) 2578 for (i = j = 0; i < anfdmax; ++i)
2535 for (w = anfds [i].head; w; w = w->next) 2579 for (w = w2 = anfds [i].head; w; w = w->next)
2536 { 2580 {
2537 verify_watcher (EV_A_ (W)w); 2581 verify_watcher (EV_A_ (W)w);
2582
2583 if (j++ & 1)
2584 {
2585 assert (("libev: io watcher list contains a loop", w != w2));
2586 w2 = w2->next;
2587 }
2588
2538 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2589 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2539 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2590 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2540 } 2591 }
2541 2592
2542 assert (timermax >= timercnt); 2593 assert (timermax >= timercnt);
… …
2595#if EV_MULTIPLICITY 2646#if EV_MULTIPLICITY
2596struct ev_loop * ecb_cold 2647struct ev_loop * ecb_cold
2597#else 2648#else
2598int 2649int
2599#endif 2650#endif
2600ev_default_loop (unsigned int flags) 2651ev_default_loop (unsigned int flags) EV_THROW
2601{ 2652{
2602 if (!ev_default_loop_ptr) 2653 if (!ev_default_loop_ptr)
2603 { 2654 {
2604#if EV_MULTIPLICITY 2655#if EV_MULTIPLICITY
2605 EV_P = ev_default_loop_ptr = &default_loop_struct; 2656 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2624 2675
2625 return ev_default_loop_ptr; 2676 return ev_default_loop_ptr;
2626} 2677}
2627 2678
2628void 2679void
2629ev_loop_fork (EV_P) 2680ev_loop_fork (EV_P) EV_THROW
2630{ 2681{
2631 postfork = 1; /* must be in line with ev_default_fork */ 2682 postfork = 1; /* must be in line with ev_default_fork */
2632} 2683}
2633 2684
2634/*****************************************************************************/ 2685/*****************************************************************************/
… …
2638{ 2689{
2639 EV_CB_INVOKE ((W)w, revents); 2690 EV_CB_INVOKE ((W)w, revents);
2640} 2691}
2641 2692
2642unsigned int 2693unsigned int
2643ev_pending_count (EV_P) 2694ev_pending_count (EV_P) EV_THROW
2644{ 2695{
2645 int pri; 2696 int pri;
2646 unsigned int count = 0; 2697 unsigned int count = 0;
2647 2698
2648 for (pri = NUMPRI; pri--; ) 2699 for (pri = NUMPRI; pri--; )
… …
2652} 2703}
2653 2704
2654void noinline 2705void noinline
2655ev_invoke_pending (EV_P) 2706ev_invoke_pending (EV_P)
2656{ 2707{
2657 int pri; 2708 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2658
2659 for (pri = NUMPRI; pri--; )
2660 while (pendingcnt [pri]) 2709 while (pendingcnt [pendingpri])
2661 { 2710 {
2662 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2711 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2663 2712
2664 p->w->pending = 0; 2713 p->w->pending = 0;
2665 EV_CB_INVOKE (p->w, p->events); 2714 EV_CB_INVOKE (p->w, p->events);
2666 EV_FREQUENT_CHECK; 2715 EV_FREQUENT_CHECK;
2667 } 2716 }
… …
2907 2956
2908 mn_now = ev_rt_now; 2957 mn_now = ev_rt_now;
2909 } 2958 }
2910} 2959}
2911 2960
2912void 2961int
2913ev_run (EV_P_ int flags) 2962ev_run (EV_P_ int flags)
2914{ 2963{
2915#if EV_FEATURE_API 2964#if EV_FEATURE_API
2916 ++loop_depth; 2965 ++loop_depth;
2917#endif 2966#endif
… …
3074 loop_done = EVBREAK_CANCEL; 3123 loop_done = EVBREAK_CANCEL;
3075 3124
3076#if EV_FEATURE_API 3125#if EV_FEATURE_API
3077 --loop_depth; 3126 --loop_depth;
3078#endif 3127#endif
3128
3129 return activecnt;
3079} 3130}
3080 3131
3081void 3132void
3082ev_break (EV_P_ int how) 3133ev_break (EV_P_ int how) EV_THROW
3083{ 3134{
3084 loop_done = how; 3135 loop_done = how;
3085} 3136}
3086 3137
3087void 3138void
3088ev_ref (EV_P) 3139ev_ref (EV_P) EV_THROW
3089{ 3140{
3090 ++activecnt; 3141 ++activecnt;
3091} 3142}
3092 3143
3093void 3144void
3094ev_unref (EV_P) 3145ev_unref (EV_P) EV_THROW
3095{ 3146{
3096 --activecnt; 3147 --activecnt;
3097} 3148}
3098 3149
3099void 3150void
3100ev_now_update (EV_P) 3151ev_now_update (EV_P) EV_THROW
3101{ 3152{
3102 time_update (EV_A_ 1e100); 3153 time_update (EV_A_ 1e100);
3103} 3154}
3104 3155
3105void 3156void
3106ev_suspend (EV_P) 3157ev_suspend (EV_P) EV_THROW
3107{ 3158{
3108 ev_now_update (EV_A); 3159 ev_now_update (EV_A);
3109} 3160}
3110 3161
3111void 3162void
3112ev_resume (EV_P) 3163ev_resume (EV_P) EV_THROW
3113{ 3164{
3114 ev_tstamp mn_prev = mn_now; 3165 ev_tstamp mn_prev = mn_now;
3115 3166
3116 ev_now_update (EV_A); 3167 ev_now_update (EV_A);
3117 timers_reschedule (EV_A_ mn_now - mn_prev); 3168 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3156 w->pending = 0; 3207 w->pending = 0;
3157 } 3208 }
3158} 3209}
3159 3210
3160int 3211int
3161ev_clear_pending (EV_P_ void *w) 3212ev_clear_pending (EV_P_ void *w) EV_THROW
3162{ 3213{
3163 W w_ = (W)w; 3214 W w_ = (W)w;
3164 int pending = w_->pending; 3215 int pending = w_->pending;
3165 3216
3166 if (expect_true (pending)) 3217 if (expect_true (pending))
… …
3199} 3250}
3200 3251
3201/*****************************************************************************/ 3252/*****************************************************************************/
3202 3253
3203void noinline 3254void noinline
3204ev_io_start (EV_P_ ev_io *w) 3255ev_io_start (EV_P_ ev_io *w) EV_THROW
3205{ 3256{
3206 int fd = w->fd; 3257 int fd = w->fd;
3207 3258
3208 if (expect_false (ev_is_active (w))) 3259 if (expect_false (ev_is_active (w)))
3209 return; 3260 return;
… …
3215 3266
3216 ev_start (EV_A_ (W)w, 1); 3267 ev_start (EV_A_ (W)w, 1);
3217 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3268 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3218 wlist_add (&anfds[fd].head, (WL)w); 3269 wlist_add (&anfds[fd].head, (WL)w);
3219 3270
3271 /* common bug, apparently */
3272 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3273
3220 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3274 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3221 w->events &= ~EV__IOFDSET; 3275 w->events &= ~EV__IOFDSET;
3222 3276
3223 EV_FREQUENT_CHECK; 3277 EV_FREQUENT_CHECK;
3224} 3278}
3225 3279
3226void noinline 3280void noinline
3227ev_io_stop (EV_P_ ev_io *w) 3281ev_io_stop (EV_P_ ev_io *w) EV_THROW
3228{ 3282{
3229 clear_pending (EV_A_ (W)w); 3283 clear_pending (EV_A_ (W)w);
3230 if (expect_false (!ev_is_active (w))) 3284 if (expect_false (!ev_is_active (w)))
3231 return; 3285 return;
3232 3286
… …
3241 3295
3242 EV_FREQUENT_CHECK; 3296 EV_FREQUENT_CHECK;
3243} 3297}
3244 3298
3245void noinline 3299void noinline
3246ev_timer_start (EV_P_ ev_timer *w) 3300ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3247{ 3301{
3248 if (expect_false (ev_is_active (w))) 3302 if (expect_false (ev_is_active (w)))
3249 return; 3303 return;
3250 3304
3251 ev_at (w) += mn_now; 3305 ev_at (w) += mn_now;
… …
3265 3319
3266 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3320 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3267} 3321}
3268 3322
3269void noinline 3323void noinline
3270ev_timer_stop (EV_P_ ev_timer *w) 3324ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3271{ 3325{
3272 clear_pending (EV_A_ (W)w); 3326 clear_pending (EV_A_ (W)w);
3273 if (expect_false (!ev_is_active (w))) 3327 if (expect_false (!ev_is_active (w)))
3274 return; 3328 return;
3275 3329
… …
3295 3349
3296 EV_FREQUENT_CHECK; 3350 EV_FREQUENT_CHECK;
3297} 3351}
3298 3352
3299void noinline 3353void noinline
3300ev_timer_again (EV_P_ ev_timer *w) 3354ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3301{ 3355{
3302 EV_FREQUENT_CHECK; 3356 EV_FREQUENT_CHECK;
3303 3357
3304 clear_pending (EV_A_ (W)w); 3358 clear_pending (EV_A_ (W)w);
3305 3359
… …
3322 3376
3323 EV_FREQUENT_CHECK; 3377 EV_FREQUENT_CHECK;
3324} 3378}
3325 3379
3326ev_tstamp 3380ev_tstamp
3327ev_timer_remaining (EV_P_ ev_timer *w) 3381ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3328{ 3382{
3329 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3383 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3330} 3384}
3331 3385
3332#if EV_PERIODIC_ENABLE 3386#if EV_PERIODIC_ENABLE
3333void noinline 3387void noinline
3334ev_periodic_start (EV_P_ ev_periodic *w) 3388ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3335{ 3389{
3336 if (expect_false (ev_is_active (w))) 3390 if (expect_false (ev_is_active (w)))
3337 return; 3391 return;
3338 3392
3339 if (w->reschedule_cb) 3393 if (w->reschedule_cb)
… …
3359 3413
3360 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3414 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3361} 3415}
3362 3416
3363void noinline 3417void noinline
3364ev_periodic_stop (EV_P_ ev_periodic *w) 3418ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3365{ 3419{
3366 clear_pending (EV_A_ (W)w); 3420 clear_pending (EV_A_ (W)w);
3367 if (expect_false (!ev_is_active (w))) 3421 if (expect_false (!ev_is_active (w)))
3368 return; 3422 return;
3369 3423
… …
3387 3441
3388 EV_FREQUENT_CHECK; 3442 EV_FREQUENT_CHECK;
3389} 3443}
3390 3444
3391void noinline 3445void noinline
3392ev_periodic_again (EV_P_ ev_periodic *w) 3446ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3393{ 3447{
3394 /* TODO: use adjustheap and recalculation */ 3448 /* TODO: use adjustheap and recalculation */
3395 ev_periodic_stop (EV_A_ w); 3449 ev_periodic_stop (EV_A_ w);
3396 ev_periodic_start (EV_A_ w); 3450 ev_periodic_start (EV_A_ w);
3397} 3451}
… …
3402#endif 3456#endif
3403 3457
3404#if EV_SIGNAL_ENABLE 3458#if EV_SIGNAL_ENABLE
3405 3459
3406void noinline 3460void noinline
3407ev_signal_start (EV_P_ ev_signal *w) 3461ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3408{ 3462{
3409 if (expect_false (ev_is_active (w))) 3463 if (expect_false (ev_is_active (w)))
3410 return; 3464 return;
3411 3465
3412 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3466 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3483 3537
3484 EV_FREQUENT_CHECK; 3538 EV_FREQUENT_CHECK;
3485} 3539}
3486 3540
3487void noinline 3541void noinline
3488ev_signal_stop (EV_P_ ev_signal *w) 3542ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3489{ 3543{
3490 clear_pending (EV_A_ (W)w); 3544 clear_pending (EV_A_ (W)w);
3491 if (expect_false (!ev_is_active (w))) 3545 if (expect_false (!ev_is_active (w)))
3492 return; 3546 return;
3493 3547
… …
3524#endif 3578#endif
3525 3579
3526#if EV_CHILD_ENABLE 3580#if EV_CHILD_ENABLE
3527 3581
3528void 3582void
3529ev_child_start (EV_P_ ev_child *w) 3583ev_child_start (EV_P_ ev_child *w) EV_THROW
3530{ 3584{
3531#if EV_MULTIPLICITY 3585#if EV_MULTIPLICITY
3532 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3586 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3533#endif 3587#endif
3534 if (expect_false (ev_is_active (w))) 3588 if (expect_false (ev_is_active (w)))
… …
3541 3595
3542 EV_FREQUENT_CHECK; 3596 EV_FREQUENT_CHECK;
3543} 3597}
3544 3598
3545void 3599void
3546ev_child_stop (EV_P_ ev_child *w) 3600ev_child_stop (EV_P_ ev_child *w) EV_THROW
3547{ 3601{
3548 clear_pending (EV_A_ (W)w); 3602 clear_pending (EV_A_ (W)w);
3549 if (expect_false (!ev_is_active (w))) 3603 if (expect_false (!ev_is_active (w)))
3550 return; 3604 return;
3551 3605
… …
3718} 3772}
3719 3773
3720inline_size int 3774inline_size int
3721infy_newfd (void) 3775infy_newfd (void)
3722{ 3776{
3723#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3777#if defined IN_CLOEXEC && defined IN_NONBLOCK
3724 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3778 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3725 if (fd >= 0) 3779 if (fd >= 0)
3726 return fd; 3780 return fd;
3727#endif 3781#endif
3728 return inotify_init (); 3782 return inotify_init ();
… …
3803#else 3857#else
3804# define EV_LSTAT(p,b) lstat (p, b) 3858# define EV_LSTAT(p,b) lstat (p, b)
3805#endif 3859#endif
3806 3860
3807void 3861void
3808ev_stat_stat (EV_P_ ev_stat *w) 3862ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3809{ 3863{
3810 if (lstat (w->path, &w->attr) < 0) 3864 if (lstat (w->path, &w->attr) < 0)
3811 w->attr.st_nlink = 0; 3865 w->attr.st_nlink = 0;
3812 else if (!w->attr.st_nlink) 3866 else if (!w->attr.st_nlink)
3813 w->attr.st_nlink = 1; 3867 w->attr.st_nlink = 1;
… …
3852 ev_feed_event (EV_A_ w, EV_STAT); 3906 ev_feed_event (EV_A_ w, EV_STAT);
3853 } 3907 }
3854} 3908}
3855 3909
3856void 3910void
3857ev_stat_start (EV_P_ ev_stat *w) 3911ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3858{ 3912{
3859 if (expect_false (ev_is_active (w))) 3913 if (expect_false (ev_is_active (w)))
3860 return; 3914 return;
3861 3915
3862 ev_stat_stat (EV_A_ w); 3916 ev_stat_stat (EV_A_ w);
… …
3883 3937
3884 EV_FREQUENT_CHECK; 3938 EV_FREQUENT_CHECK;
3885} 3939}
3886 3940
3887void 3941void
3888ev_stat_stop (EV_P_ ev_stat *w) 3942ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3889{ 3943{
3890 clear_pending (EV_A_ (W)w); 3944 clear_pending (EV_A_ (W)w);
3891 if (expect_false (!ev_is_active (w))) 3945 if (expect_false (!ev_is_active (w)))
3892 return; 3946 return;
3893 3947
… …
3909} 3963}
3910#endif 3964#endif
3911 3965
3912#if EV_IDLE_ENABLE 3966#if EV_IDLE_ENABLE
3913void 3967void
3914ev_idle_start (EV_P_ ev_idle *w) 3968ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3915{ 3969{
3916 if (expect_false (ev_is_active (w))) 3970 if (expect_false (ev_is_active (w)))
3917 return; 3971 return;
3918 3972
3919 pri_adjust (EV_A_ (W)w); 3973 pri_adjust (EV_A_ (W)w);
… …
3932 3986
3933 EV_FREQUENT_CHECK; 3987 EV_FREQUENT_CHECK;
3934} 3988}
3935 3989
3936void 3990void
3937ev_idle_stop (EV_P_ ev_idle *w) 3991ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3938{ 3992{
3939 clear_pending (EV_A_ (W)w); 3993 clear_pending (EV_A_ (W)w);
3940 if (expect_false (!ev_is_active (w))) 3994 if (expect_false (!ev_is_active (w)))
3941 return; 3995 return;
3942 3996
… …
3956} 4010}
3957#endif 4011#endif
3958 4012
3959#if EV_PREPARE_ENABLE 4013#if EV_PREPARE_ENABLE
3960void 4014void
3961ev_prepare_start (EV_P_ ev_prepare *w) 4015ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3962{ 4016{
3963 if (expect_false (ev_is_active (w))) 4017 if (expect_false (ev_is_active (w)))
3964 return; 4018 return;
3965 4019
3966 EV_FREQUENT_CHECK; 4020 EV_FREQUENT_CHECK;
… …
3971 4025
3972 EV_FREQUENT_CHECK; 4026 EV_FREQUENT_CHECK;
3973} 4027}
3974 4028
3975void 4029void
3976ev_prepare_stop (EV_P_ ev_prepare *w) 4030ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3977{ 4031{
3978 clear_pending (EV_A_ (W)w); 4032 clear_pending (EV_A_ (W)w);
3979 if (expect_false (!ev_is_active (w))) 4033 if (expect_false (!ev_is_active (w)))
3980 return; 4034 return;
3981 4035
… …
3994} 4048}
3995#endif 4049#endif
3996 4050
3997#if EV_CHECK_ENABLE 4051#if EV_CHECK_ENABLE
3998void 4052void
3999ev_check_start (EV_P_ ev_check *w) 4053ev_check_start (EV_P_ ev_check *w) EV_THROW
4000{ 4054{
4001 if (expect_false (ev_is_active (w))) 4055 if (expect_false (ev_is_active (w)))
4002 return; 4056 return;
4003 4057
4004 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
… …
4009 4063
4010 EV_FREQUENT_CHECK; 4064 EV_FREQUENT_CHECK;
4011} 4065}
4012 4066
4013void 4067void
4014ev_check_stop (EV_P_ ev_check *w) 4068ev_check_stop (EV_P_ ev_check *w) EV_THROW
4015{ 4069{
4016 clear_pending (EV_A_ (W)w); 4070 clear_pending (EV_A_ (W)w);
4017 if (expect_false (!ev_is_active (w))) 4071 if (expect_false (!ev_is_active (w)))
4018 return; 4072 return;
4019 4073
… …
4032} 4086}
4033#endif 4087#endif
4034 4088
4035#if EV_EMBED_ENABLE 4089#if EV_EMBED_ENABLE
4036void noinline 4090void noinline
4037ev_embed_sweep (EV_P_ ev_embed *w) 4091ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4038{ 4092{
4039 ev_run (w->other, EVRUN_NOWAIT); 4093 ev_run (w->other, EVRUN_NOWAIT);
4040} 4094}
4041 4095
4042static void 4096static void
… …
4090 ev_idle_stop (EV_A_ idle); 4144 ev_idle_stop (EV_A_ idle);
4091} 4145}
4092#endif 4146#endif
4093 4147
4094void 4148void
4095ev_embed_start (EV_P_ ev_embed *w) 4149ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4096{ 4150{
4097 if (expect_false (ev_is_active (w))) 4151 if (expect_false (ev_is_active (w)))
4098 return; 4152 return;
4099 4153
4100 { 4154 {
… …
4121 4175
4122 EV_FREQUENT_CHECK; 4176 EV_FREQUENT_CHECK;
4123} 4177}
4124 4178
4125void 4179void
4126ev_embed_stop (EV_P_ ev_embed *w) 4180ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4127{ 4181{
4128 clear_pending (EV_A_ (W)w); 4182 clear_pending (EV_A_ (W)w);
4129 if (expect_false (!ev_is_active (w))) 4183 if (expect_false (!ev_is_active (w)))
4130 return; 4184 return;
4131 4185
… …
4141} 4195}
4142#endif 4196#endif
4143 4197
4144#if EV_FORK_ENABLE 4198#if EV_FORK_ENABLE
4145void 4199void
4146ev_fork_start (EV_P_ ev_fork *w) 4200ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4147{ 4201{
4148 if (expect_false (ev_is_active (w))) 4202 if (expect_false (ev_is_active (w)))
4149 return; 4203 return;
4150 4204
4151 EV_FREQUENT_CHECK; 4205 EV_FREQUENT_CHECK;
… …
4156 4210
4157 EV_FREQUENT_CHECK; 4211 EV_FREQUENT_CHECK;
4158} 4212}
4159 4213
4160void 4214void
4161ev_fork_stop (EV_P_ ev_fork *w) 4215ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4162{ 4216{
4163 clear_pending (EV_A_ (W)w); 4217 clear_pending (EV_A_ (W)w);
4164 if (expect_false (!ev_is_active (w))) 4218 if (expect_false (!ev_is_active (w)))
4165 return; 4219 return;
4166 4220
… …
4179} 4233}
4180#endif 4234#endif
4181 4235
4182#if EV_CLEANUP_ENABLE 4236#if EV_CLEANUP_ENABLE
4183void 4237void
4184ev_cleanup_start (EV_P_ ev_cleanup *w) 4238ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4185{ 4239{
4186 if (expect_false (ev_is_active (w))) 4240 if (expect_false (ev_is_active (w)))
4187 return; 4241 return;
4188 4242
4189 EV_FREQUENT_CHECK; 4243 EV_FREQUENT_CHECK;
… …
4196 ev_unref (EV_A); 4250 ev_unref (EV_A);
4197 EV_FREQUENT_CHECK; 4251 EV_FREQUENT_CHECK;
4198} 4252}
4199 4253
4200void 4254void
4201ev_cleanup_stop (EV_P_ ev_cleanup *w) 4255ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4202{ 4256{
4203 clear_pending (EV_A_ (W)w); 4257 clear_pending (EV_A_ (W)w);
4204 if (expect_false (!ev_is_active (w))) 4258 if (expect_false (!ev_is_active (w)))
4205 return; 4259 return;
4206 4260
… …
4220} 4274}
4221#endif 4275#endif
4222 4276
4223#if EV_ASYNC_ENABLE 4277#if EV_ASYNC_ENABLE
4224void 4278void
4225ev_async_start (EV_P_ ev_async *w) 4279ev_async_start (EV_P_ ev_async *w) EV_THROW
4226{ 4280{
4227 if (expect_false (ev_is_active (w))) 4281 if (expect_false (ev_is_active (w)))
4228 return; 4282 return;
4229 4283
4230 w->sent = 0; 4284 w->sent = 0;
… …
4239 4293
4240 EV_FREQUENT_CHECK; 4294 EV_FREQUENT_CHECK;
4241} 4295}
4242 4296
4243void 4297void
4244ev_async_stop (EV_P_ ev_async *w) 4298ev_async_stop (EV_P_ ev_async *w) EV_THROW
4245{ 4299{
4246 clear_pending (EV_A_ (W)w); 4300 clear_pending (EV_A_ (W)w);
4247 if (expect_false (!ev_is_active (w))) 4301 if (expect_false (!ev_is_active (w)))
4248 return; 4302 return;
4249 4303
… …
4260 4314
4261 EV_FREQUENT_CHECK; 4315 EV_FREQUENT_CHECK;
4262} 4316}
4263 4317
4264void 4318void
4265ev_async_send (EV_P_ ev_async *w) 4319ev_async_send (EV_P_ ev_async *w) EV_THROW
4266{ 4320{
4267 w->sent = 1; 4321 w->sent = 1;
4268 evpipe_write (EV_A_ &async_pending); 4322 evpipe_write (EV_A_ &async_pending);
4269} 4323}
4270#endif 4324#endif
… …
4307 4361
4308 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4362 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4309} 4363}
4310 4364
4311void 4365void
4312ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4366ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4313{ 4367{
4314 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4368 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4315 4369
4316 if (expect_false (!once)) 4370 if (expect_false (!once))
4317 { 4371 {
… …
4339 4393
4340/*****************************************************************************/ 4394/*****************************************************************************/
4341 4395
4342#if EV_WALK_ENABLE 4396#if EV_WALK_ENABLE
4343void ecb_cold 4397void ecb_cold
4344ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4398ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4345{ 4399{
4346 int i, j; 4400 int i, j;
4347 ev_watcher_list *wl, *wn; 4401 ev_watcher_list *wl, *wn;
4348 4402
4349 if (types & (EV_IO | EV_EMBED)) 4403 if (types & (EV_IO | EV_EMBED))

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