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Comparing libev/ev.c (file contents):
Revision 1.419 by root, Thu Apr 12 04:10:15 2012 UTC vs.
Revision 1.449 by root, Sun Sep 23 21:21:58 2012 UTC

201# include <sys/wait.h> 201# include <sys/wait.h>
202# include <unistd.h> 202# include <unistd.h>
203#else 203#else
204# include <io.h> 204# include <io.h>
205# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
206# include <windows.h> 207# include <windows.h>
207# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
208# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
209# endif 210# endif
210# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
359#endif 360#endif
360 361
361/* 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, */
362/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 365# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
369# else 370# else
408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
412# endif 413# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 414#endif
418 415
419#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421# include <stdint.h> 418# include <stdint.h>
507 */ 504 */
508 505
509#ifndef ECB_H 506#ifndef ECB_H
510#define ECB_H 507#define ECB_H
511 508
509/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010001
511
512#ifdef _WIN32 512#ifdef _WIN32
513 typedef signed char int8_t; 513 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 514 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 515 typedef signed short int16_t;
516 typedef unsigned short uint16_t; 516 typedef unsigned short uint16_t;
521 typedef unsigned long long uint64_t; 521 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 522 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 523 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 524 typedef unsigned __int64 uint64_t;
525 #endif 525 #endif
526 #ifdef _WIN64
527 #define ECB_PTRSIZE 8
528 typedef uint64_t uintptr_t;
529 typedef int64_t intptr_t;
530 #else
531 #define ECB_PTRSIZE 4
532 typedef uint32_t uintptr_t;
533 typedef int32_t intptr_t;
534 #endif
535 typedef intptr_t ptrdiff_t;
526#else 536#else
527 #include <inttypes.h> 537 #include <inttypes.h>
538 #if UINTMAX_MAX > 0xffffffffU
539 #define ECB_PTRSIZE 8
540 #else
541 #define ECB_PTRSIZE 4
542 #endif
528#endif 543#endif
529 544
530/* many compilers define _GNUC_ to some versions but then only implement 545/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 546 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 547 * causing enormous grief in return for some better fake benchmark numbers.
540 #else 555 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 556 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 557 #endif
543#endif 558#endif
544 559
560#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
561#define ECB_C99 (__STDC_VERSION__ >= 199901L)
562#define ECB_C11 (__STDC_VERSION__ >= 201112L)
563#define ECB_CPP (__cplusplus+0)
564#define ECB_CPP11 (__cplusplus >= 201103L)
565
545/*****************************************************************************/ 566/*****************************************************************************/
546 567
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 568/* 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 */ 569/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 570
550#if ECB_NO_THREADS 571#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 572 #define ECB_NO_SMP 1
552#endif 573#endif
553 574
554#if ECB_NO_THREADS || ECB_NO_SMP 575#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 576 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 577#endif
557 578
558#ifndef ECB_MEMORY_FENCE 579#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 580 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 581 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 582 #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 */ 583 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 584 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 585 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 586 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 587 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 588 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 589 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 590 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 591 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 592 || 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") 593 #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__ \ 594 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 595 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 596 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 597 #elif __sparc || __sparc__
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 598 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 599 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 600 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined __s390__ || defined __s390x__ 601 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 602 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
582 #elif defined __mips__ 603 #elif defined __mips__
583 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 604 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
584 #elif defined __alpha__ 605 #elif defined __alpha__
585 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 606 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607 #elif defined __hppa__
608 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610 #elif defined __ia64__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
586 #endif 612 #endif
587 #endif 613 #endif
588#endif 614#endif
589 615
590#ifndef ECB_MEMORY_FENCE 616#ifndef ECB_MEMORY_FENCE
617 #if ECB_GCC_VERSION(4,7)
618 /* see comment below (stdatomic.h) about the C11 memory model. */
619 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620 #elif defined __clang && __has_feature (cxx_atomic)
621 /* see comment below (stdatomic.h) about the C11 memory model. */
622 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
591 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 623 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
592 #define ECB_MEMORY_FENCE __sync_synchronize () 624 #define ECB_MEMORY_FENCE __sync_synchronize ()
593 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
594 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
595 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 625 #elif _MSC_VER >= 1400 /* VC++ 2005 */
596 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 626 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
597 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 627 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
598 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 628 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
599 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 629 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
609 #define ECB_MEMORY_FENCE __sync () 639 #define ECB_MEMORY_FENCE __sync ()
610 #endif 640 #endif
611#endif 641#endif
612 642
613#ifndef ECB_MEMORY_FENCE 643#ifndef ECB_MEMORY_FENCE
644 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
645 /* we assume that these memory fences work on all variables/all memory accesses, */
646 /* not just C11 atomics and atomic accesses */
647 #include <stdatomic.h>
648 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
649 /* any fence other than seq_cst, which isn't very efficient for us. */
650 /* Why that is, we don't know - either the C11 memory model is quite useless */
651 /* for most usages, or gcc and clang have a bug */
652 /* I *currently* lean towards the latter, and inefficiently implement */
653 /* all three of ecb's fences as a seq_cst fence */
654 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
655 #endif
656#endif
657
658#ifndef ECB_MEMORY_FENCE
614 #if !ECB_AVOID_PTHREADS 659 #if !ECB_AVOID_PTHREADS
615 /* 660 /*
616 * if you get undefined symbol references to pthread_mutex_lock, 661 * if you get undefined symbol references to pthread_mutex_lock,
617 * or failure to find pthread.h, then you should implement 662 * or failure to find pthread.h, then you should implement
618 * the ECB_MEMORY_FENCE operations for your cpu/compiler 663 * the ECB_MEMORY_FENCE operations for your cpu/compiler
636 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 681 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
637#endif 682#endif
638 683
639/*****************************************************************************/ 684/*****************************************************************************/
640 685
641#define ECB_C99 (__STDC_VERSION__ >= 199901L)
642
643#if __cplusplus 686#if __cplusplus
644 #define ecb_inline static inline 687 #define ecb_inline static inline
645#elif ECB_GCC_VERSION(2,5) 688#elif ECB_GCC_VERSION(2,5)
646 #define ecb_inline static __inline__ 689 #define ecb_inline static __inline__
647#elif ECB_C99 690#elif ECB_C99
685#elif ECB_GCC_VERSION(3,0) 728#elif ECB_GCC_VERSION(3,0)
686 #define ecb_decltype(x) __typeof(x) 729 #define ecb_decltype(x) __typeof(x)
687#endif 730#endif
688 731
689#define ecb_noinline ecb_attribute ((__noinline__)) 732#define ecb_noinline ecb_attribute ((__noinline__))
690#define ecb_noreturn ecb_attribute ((__noreturn__))
691#define ecb_unused ecb_attribute ((__unused__)) 733#define ecb_unused ecb_attribute ((__unused__))
692#define ecb_const ecb_attribute ((__const__)) 734#define ecb_const ecb_attribute ((__const__))
693#define ecb_pure ecb_attribute ((__pure__)) 735#define ecb_pure ecb_attribute ((__pure__))
736
737#if ECB_C11
738 #define ecb_noreturn _Noreturn
739#else
740 #define ecb_noreturn ecb_attribute ((__noreturn__))
741#endif
694 742
695#if ECB_GCC_VERSION(4,3) 743#if ECB_GCC_VERSION(4,3)
696 #define ecb_artificial ecb_attribute ((__artificial__)) 744 #define ecb_artificial ecb_attribute ((__artificial__))
697 #define ecb_hot ecb_attribute ((__hot__)) 745 #define ecb_hot ecb_attribute ((__hot__))
698 #define ecb_cold ecb_attribute ((__cold__)) 746 #define ecb_cold ecb_attribute ((__cold__))
789 837
790 return r + ecb_ld32 (x); 838 return r + ecb_ld32 (x);
791 } 839 }
792#endif 840#endif
793 841
842ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
843ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
844ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
845ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846
794ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 847ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
795ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 848ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
796{ 849{
797 return ( (x * 0x0802U & 0x22110U) 850 return ( (x * 0x0802U & 0x22110U)
798 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 851 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
1105{ 1158{
1106 write (STDERR_FILENO, msg, strlen (msg)); 1159 write (STDERR_FILENO, msg, strlen (msg));
1107} 1160}
1108#endif 1161#endif
1109 1162
1110static void (*syserr_cb)(const char *msg); 1163static void (*syserr_cb)(const char *msg) EV_THROW;
1111 1164
1112void ecb_cold 1165void ecb_cold
1113ev_set_syserr_cb (void (*cb)(const char *msg)) 1166ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1114{ 1167{
1115 syserr_cb = cb; 1168 syserr_cb = cb;
1116} 1169}
1117 1170
1118static void noinline ecb_cold 1171static void noinline ecb_cold
1136 abort (); 1189 abort ();
1137 } 1190 }
1138} 1191}
1139 1192
1140static void * 1193static void *
1141ev_realloc_emul (void *ptr, long size) 1194ev_realloc_emul (void *ptr, long size) EV_THROW
1142{ 1195{
1143#if __GLIBC__
1144 return realloc (ptr, size);
1145#else
1146 /* some systems, notably openbsd and darwin, fail to properly 1196 /* some systems, notably openbsd and darwin, fail to properly
1147 * implement realloc (x, 0) (as required by both ansi c-89 and 1197 * implement realloc (x, 0) (as required by both ansi c-89 and
1148 * the single unix specification, so work around them here. 1198 * the single unix specification, so work around them here.
1199 * recently, also (at least) fedora and debian started breaking it,
1200 * despite documenting it otherwise.
1149 */ 1201 */
1150 1202
1151 if (size) 1203 if (size)
1152 return realloc (ptr, size); 1204 return realloc (ptr, size);
1153 1205
1154 free (ptr); 1206 free (ptr);
1155 return 0; 1207 return 0;
1156#endif
1157} 1208}
1158 1209
1159static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1210static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1160 1211
1161void ecb_cold 1212void ecb_cold
1162ev_set_allocator (void *(*cb)(void *ptr, long size)) 1213ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1163{ 1214{
1164 alloc = cb; 1215 alloc = cb;
1165} 1216}
1166 1217
1167inline_speed void * 1218inline_speed void *
1284 1335
1285/*****************************************************************************/ 1336/*****************************************************************************/
1286 1337
1287#ifndef EV_HAVE_EV_TIME 1338#ifndef EV_HAVE_EV_TIME
1288ev_tstamp 1339ev_tstamp
1289ev_time (void) 1340ev_time (void) EV_THROW
1290{ 1341{
1291#if EV_USE_REALTIME 1342#if EV_USE_REALTIME
1292 if (expect_true (have_realtime)) 1343 if (expect_true (have_realtime))
1293 { 1344 {
1294 struct timespec ts; 1345 struct timespec ts;
1318 return ev_time (); 1369 return ev_time ();
1319} 1370}
1320 1371
1321#if EV_MULTIPLICITY 1372#if EV_MULTIPLICITY
1322ev_tstamp 1373ev_tstamp
1323ev_now (EV_P) 1374ev_now (EV_P) EV_THROW
1324{ 1375{
1325 return ev_rt_now; 1376 return ev_rt_now;
1326} 1377}
1327#endif 1378#endif
1328 1379
1329void 1380void
1330ev_sleep (ev_tstamp delay) 1381ev_sleep (ev_tstamp delay) EV_THROW
1331{ 1382{
1332 if (delay > 0.) 1383 if (delay > 0.)
1333 { 1384 {
1334#if EV_USE_NANOSLEEP 1385#if EV_USE_NANOSLEEP
1335 struct timespec ts; 1386 struct timespec ts;
1416pendingcb (EV_P_ ev_prepare *w, int revents) 1467pendingcb (EV_P_ ev_prepare *w, int revents)
1417{ 1468{
1418} 1469}
1419 1470
1420void noinline 1471void noinline
1421ev_feed_event (EV_P_ void *w, int revents) 1472ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1422{ 1473{
1423 W w_ = (W)w; 1474 W w_ = (W)w;
1424 int pri = ABSPRI (w_); 1475 int pri = ABSPRI (w_);
1425 1476
1426 if (expect_false (w_->pending)) 1477 if (expect_false (w_->pending))
1430 w_->pending = ++pendingcnt [pri]; 1481 w_->pending = ++pendingcnt [pri];
1431 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1482 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1432 pendings [pri][w_->pending - 1].w = w_; 1483 pendings [pri][w_->pending - 1].w = w_;
1433 pendings [pri][w_->pending - 1].events = revents; 1484 pendings [pri][w_->pending - 1].events = revents;
1434 } 1485 }
1486
1487 pendingpri = NUMPRI - 1;
1435} 1488}
1436 1489
1437inline_speed void 1490inline_speed void
1438feed_reverse (EV_P_ W w) 1491feed_reverse (EV_P_ W w)
1439{ 1492{
1485 if (expect_true (!anfd->reify)) 1538 if (expect_true (!anfd->reify))
1486 fd_event_nocheck (EV_A_ fd, revents); 1539 fd_event_nocheck (EV_A_ fd, revents);
1487} 1540}
1488 1541
1489void 1542void
1490ev_feed_fd_event (EV_P_ int fd, int revents) 1543ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1491{ 1544{
1492 if (fd >= 0 && fd < anfdmax) 1545 if (fd >= 0 && fd < anfdmax)
1493 fd_event_nocheck (EV_A_ fd, revents); 1546 fd_event_nocheck (EV_A_ fd, revents);
1494} 1547}
1495 1548
1814static void noinline ecb_cold 1867static void noinline ecb_cold
1815evpipe_init (EV_P) 1868evpipe_init (EV_P)
1816{ 1869{
1817 if (!ev_is_active (&pipe_w)) 1870 if (!ev_is_active (&pipe_w))
1818 { 1871 {
1872 int fds [2];
1873
1819# if EV_USE_EVENTFD 1874# if EV_USE_EVENTFD
1875 fds [0] = -1;
1820 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1876 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1821 if (evfd < 0 && errno == EINVAL) 1877 if (fds [1] < 0 && errno == EINVAL)
1822 evfd = eventfd (0, 0); 1878 fds [1] = eventfd (0, 0);
1823 1879
1824 if (evfd >= 0) 1880 if (fds [1] < 0)
1881# endif
1825 { 1882 {
1883 while (pipe (fds))
1884 ev_syserr ("(libev) error creating signal/async pipe");
1885
1886 fd_intern (fds [0]);
1887 }
1888
1889 fd_intern (fds [1]);
1890
1826 evpipe [0] = -1; 1891 evpipe [0] = fds [0];
1827 fd_intern (evfd); /* doing it twice doesn't hurt */ 1892
1828 ev_io_set (&pipe_w, evfd, EV_READ); 1893 if (evpipe [1] < 0)
1894 evpipe [1] = fds [1]; /* first call, set write fd */
1895 else
1896 {
1897 /* on subsequent calls, do not change evpipe [1] */
1898 /* so that evpipe_write can always rely on its value. */
1899 /* this branch does not do anything sensible on windows, */
1900 /* so must not be executed on windows */
1901
1902 dup2 (fds [1], evpipe [1]);
1903 close (fds [1]);
1904 }
1905
1906 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1907 ev_io_start (EV_A_ &pipe_w);
1908 ev_unref (EV_A); /* watcher should not keep loop alive */
1909 }
1910}
1911
1912inline_speed void
1913evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1914{
1915 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1916
1917 if (expect_true (*flag))
1918 return;
1919
1920 *flag = 1;
1921 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1922
1923 pipe_write_skipped = 1;
1924
1925 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1926
1927 if (pipe_write_wanted)
1928 {
1929 int old_errno;
1930
1931 pipe_write_skipped = 0;
1932 ECB_MEMORY_FENCE_RELEASE;
1933
1934 old_errno = errno; /* save errno because write will clobber it */
1935
1936#if EV_USE_EVENTFD
1937 if (evpipe [0] < 0)
1938 {
1939 uint64_t counter = 1;
1940 write (evpipe [1], &counter, sizeof (uint64_t));
1829 } 1941 }
1830 else 1942 else
1831# endif 1943#endif
1832 { 1944 {
1833 while (pipe (evpipe)) 1945#ifdef _WIN32
1834 ev_syserr ("(libev) error creating signal/async pipe"); 1946 WSABUF buf;
1835 1947 DWORD sent;
1836 fd_intern (evpipe [0]); 1948 buf.buf = &buf;
1837 fd_intern (evpipe [1]); 1949 buf.len = 1;
1838 ev_io_set (&pipe_w, evpipe [0], EV_READ); 1950 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1839 } 1951#else
1840
1841 ev_io_start (EV_A_ &pipe_w);
1842 ev_unref (EV_A); /* watcher should not keep loop alive */
1843 }
1844}
1845
1846inline_speed void
1847evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1848{
1849 if (expect_true (*flag))
1850 return;
1851
1852 *flag = 1;
1853
1854 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1855
1856 pipe_write_skipped = 1;
1857
1858 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1859
1860 if (pipe_write_wanted)
1861 {
1862 int old_errno;
1863
1864 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1865
1866 old_errno = errno; /* save errno because write will clobber it */
1867
1868#if EV_USE_EVENTFD
1869 if (evfd >= 0)
1870 {
1871 uint64_t counter = 1;
1872 write (evfd, &counter, sizeof (uint64_t));
1873 }
1874 else
1875#endif
1876 {
1877 /* win32 people keep sending patches that change this write() to send() */
1878 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1879 /* so when you think this write should be a send instead, please find out */
1880 /* where your send() is from - it's definitely not the microsoft send, and */
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 */
1884 write (evpipe [1], &(evpipe [1]), 1); 1952 write (evpipe [1], &(evpipe [1]), 1);
1953#endif
1885 } 1954 }
1886 1955
1887 errno = old_errno; 1956 errno = old_errno;
1888 } 1957 }
1889} 1958}
1896 int i; 1965 int i;
1897 1966
1898 if (revents & EV_READ) 1967 if (revents & EV_READ)
1899 { 1968 {
1900#if EV_USE_EVENTFD 1969#if EV_USE_EVENTFD
1901 if (evfd >= 0) 1970 if (evpipe [0] < 0)
1902 { 1971 {
1903 uint64_t counter; 1972 uint64_t counter;
1904 read (evfd, &counter, sizeof (uint64_t)); 1973 read (evpipe [1], &counter, sizeof (uint64_t));
1905 } 1974 }
1906 else 1975 else
1907#endif 1976#endif
1908 { 1977 {
1909 char dummy; 1978 char dummy[4];
1910 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 1979#ifdef _WIN32
1980 WSABUF buf;
1981 DWORD recvd;
1982 DWORD flags = 0;
1983 buf.buf = dummy;
1984 buf.len = sizeof (dummy);
1985 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1986#else
1911 read (evpipe [0], &dummy, 1); 1987 read (evpipe [0], &dummy, sizeof (dummy));
1988#endif
1912 } 1989 }
1913 } 1990 }
1914 1991
1915 pipe_write_skipped = 0; 1992 pipe_write_skipped = 0;
1993
1994 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1916 1995
1917#if EV_SIGNAL_ENABLE 1996#if EV_SIGNAL_ENABLE
1918 if (sig_pending) 1997 if (sig_pending)
1919 { 1998 {
1920 sig_pending = 0; 1999 sig_pending = 0;
2000
2001 ECB_MEMORY_FENCE;
1921 2002
1922 for (i = EV_NSIG - 1; i--; ) 2003 for (i = EV_NSIG - 1; i--; )
1923 if (expect_false (signals [i].pending)) 2004 if (expect_false (signals [i].pending))
1924 ev_feed_signal_event (EV_A_ i + 1); 2005 ev_feed_signal_event (EV_A_ i + 1);
1925 } 2006 }
1927 2008
1928#if EV_ASYNC_ENABLE 2009#if EV_ASYNC_ENABLE
1929 if (async_pending) 2010 if (async_pending)
1930 { 2011 {
1931 async_pending = 0; 2012 async_pending = 0;
2013
2014 ECB_MEMORY_FENCE;
1932 2015
1933 for (i = asynccnt; i--; ) 2016 for (i = asynccnt; i--; )
1934 if (asyncs [i]->sent) 2017 if (asyncs [i]->sent)
1935 { 2018 {
1936 asyncs [i]->sent = 0; 2019 asyncs [i]->sent = 0;
2020 ECB_MEMORY_FENCE_RELEASE;
1937 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2021 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1938 } 2022 }
1939 } 2023 }
1940#endif 2024#endif
1941} 2025}
1942 2026
1943/*****************************************************************************/ 2027/*****************************************************************************/
1944 2028
1945void 2029void
1946ev_feed_signal (int signum) 2030ev_feed_signal (int signum) EV_THROW
1947{ 2031{
1948#if EV_MULTIPLICITY 2032#if EV_MULTIPLICITY
2033 ECB_MEMORY_FENCE_ACQUIRE;
1949 EV_P = signals [signum - 1].loop; 2034 EV_P = signals [signum - 1].loop;
1950 2035
1951 if (!EV_A) 2036 if (!EV_A)
1952 return; 2037 return;
1953#endif 2038#endif
1954 2039
1955 if (!ev_active (&pipe_w))
1956 return;
1957
1958 signals [signum - 1].pending = 1; 2040 signals [signum - 1].pending = 1;
1959 evpipe_write (EV_A_ &sig_pending); 2041 evpipe_write (EV_A_ &sig_pending);
1960} 2042}
1961 2043
1962static void 2044static void
1968 2050
1969 ev_feed_signal (signum); 2051 ev_feed_signal (signum);
1970} 2052}
1971 2053
1972void noinline 2054void noinline
1973ev_feed_signal_event (EV_P_ int signum) 2055ev_feed_signal_event (EV_P_ int signum) EV_THROW
1974{ 2056{
1975 WL w; 2057 WL w;
1976 2058
1977 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2059 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1978 return; 2060 return;
1979 2061
1980 --signum; 2062 --signum;
1981 2063
1982#if EV_MULTIPLICITY 2064#if EV_MULTIPLICITY
1986 if (expect_false (signals [signum].loop != EV_A)) 2068 if (expect_false (signals [signum].loop != EV_A))
1987 return; 2069 return;
1988#endif 2070#endif
1989 2071
1990 signals [signum].pending = 0; 2072 signals [signum].pending = 0;
2073 ECB_MEMORY_FENCE_RELEASE;
1991 2074
1992 for (w = signals [signum].head; w; w = w->next) 2075 for (w = signals [signum].head; w; w = w->next)
1993 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2076 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1994} 2077}
1995 2078
2094#if EV_USE_SELECT 2177#if EV_USE_SELECT
2095# include "ev_select.c" 2178# include "ev_select.c"
2096#endif 2179#endif
2097 2180
2098int ecb_cold 2181int ecb_cold
2099ev_version_major (void) 2182ev_version_major (void) EV_THROW
2100{ 2183{
2101 return EV_VERSION_MAJOR; 2184 return EV_VERSION_MAJOR;
2102} 2185}
2103 2186
2104int ecb_cold 2187int ecb_cold
2105ev_version_minor (void) 2188ev_version_minor (void) EV_THROW
2106{ 2189{
2107 return EV_VERSION_MINOR; 2190 return EV_VERSION_MINOR;
2108} 2191}
2109 2192
2110/* return true if we are running with elevated privileges and should ignore env variables */ 2193/* return true if we are running with elevated privileges and should ignore env variables */
2118 || getgid () != getegid (); 2201 || getgid () != getegid ();
2119#endif 2202#endif
2120} 2203}
2121 2204
2122unsigned int ecb_cold 2205unsigned int ecb_cold
2123ev_supported_backends (void) 2206ev_supported_backends (void) EV_THROW
2124{ 2207{
2125 unsigned int flags = 0; 2208 unsigned int flags = 0;
2126 2209
2127 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2210 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2128 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2211 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2132 2215
2133 return flags; 2216 return flags;
2134} 2217}
2135 2218
2136unsigned int ecb_cold 2219unsigned int ecb_cold
2137ev_recommended_backends (void) 2220ev_recommended_backends (void) EV_THROW
2138{ 2221{
2139 unsigned int flags = ev_supported_backends (); 2222 unsigned int flags = ev_supported_backends ();
2140 2223
2141#ifndef __NetBSD__ 2224#ifndef __NetBSD__
2142 /* kqueue is borked on everything but netbsd apparently */ 2225 /* kqueue is borked on everything but netbsd apparently */
2154 2237
2155 return flags; 2238 return flags;
2156} 2239}
2157 2240
2158unsigned int ecb_cold 2241unsigned int ecb_cold
2159ev_embeddable_backends (void) 2242ev_embeddable_backends (void) EV_THROW
2160{ 2243{
2161 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2244 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2162 2245
2163 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2246 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2164 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2247 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2166 2249
2167 return flags; 2250 return flags;
2168} 2251}
2169 2252
2170unsigned int 2253unsigned int
2171ev_backend (EV_P) 2254ev_backend (EV_P) EV_THROW
2172{ 2255{
2173 return backend; 2256 return backend;
2174} 2257}
2175 2258
2176#if EV_FEATURE_API 2259#if EV_FEATURE_API
2177unsigned int 2260unsigned int
2178ev_iteration (EV_P) 2261ev_iteration (EV_P) EV_THROW
2179{ 2262{
2180 return loop_count; 2263 return loop_count;
2181} 2264}
2182 2265
2183unsigned int 2266unsigned int
2184ev_depth (EV_P) 2267ev_depth (EV_P) EV_THROW
2185{ 2268{
2186 return loop_depth; 2269 return loop_depth;
2187} 2270}
2188 2271
2189void 2272void
2190ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2273ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2191{ 2274{
2192 io_blocktime = interval; 2275 io_blocktime = interval;
2193} 2276}
2194 2277
2195void 2278void
2196ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2279ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2197{ 2280{
2198 timeout_blocktime = interval; 2281 timeout_blocktime = interval;
2199} 2282}
2200 2283
2201void 2284void
2202ev_set_userdata (EV_P_ void *data) 2285ev_set_userdata (EV_P_ void *data) EV_THROW
2203{ 2286{
2204 userdata = data; 2287 userdata = data;
2205} 2288}
2206 2289
2207void * 2290void *
2208ev_userdata (EV_P) 2291ev_userdata (EV_P) EV_THROW
2209{ 2292{
2210 return userdata; 2293 return userdata;
2211} 2294}
2212 2295
2213void 2296void
2214ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2297ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
2215{ 2298{
2216 invoke_cb = invoke_pending_cb; 2299 invoke_cb = invoke_pending_cb;
2217} 2300}
2218 2301
2219void 2302void
2220ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2303ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2221{ 2304{
2222 release_cb = release; 2305 release_cb = release;
2223 acquire_cb = acquire; 2306 acquire_cb = acquire;
2224} 2307}
2225#endif 2308#endif
2226 2309
2227/* initialise a loop structure, must be zero-initialised */ 2310/* initialise a loop structure, must be zero-initialised */
2228static void noinline ecb_cold 2311static void noinline ecb_cold
2229loop_init (EV_P_ unsigned int flags) 2312loop_init (EV_P_ unsigned int flags) EV_THROW
2230{ 2313{
2231 if (!backend) 2314 if (!backend)
2232 { 2315 {
2233 origflags = flags; 2316 origflags = flags;
2234 2317
2279#if EV_ASYNC_ENABLE 2362#if EV_ASYNC_ENABLE
2280 async_pending = 0; 2363 async_pending = 0;
2281#endif 2364#endif
2282 pipe_write_skipped = 0; 2365 pipe_write_skipped = 0;
2283 pipe_write_wanted = 0; 2366 pipe_write_wanted = 0;
2367 evpipe [0] = -1;
2368 evpipe [1] = -1;
2284#if EV_USE_INOTIFY 2369#if EV_USE_INOTIFY
2285 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2370 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2286#endif 2371#endif
2287#if EV_USE_SIGNALFD 2372#if EV_USE_SIGNALFD
2288 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2373 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2339 EV_INVOKE_PENDING; 2424 EV_INVOKE_PENDING;
2340 } 2425 }
2341#endif 2426#endif
2342 2427
2343#if EV_CHILD_ENABLE 2428#if EV_CHILD_ENABLE
2344 if (ev_is_active (&childev)) 2429 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2345 { 2430 {
2346 ev_ref (EV_A); /* child watcher */ 2431 ev_ref (EV_A); /* child watcher */
2347 ev_signal_stop (EV_A_ &childev); 2432 ev_signal_stop (EV_A_ &childev);
2348 } 2433 }
2349#endif 2434#endif
2351 if (ev_is_active (&pipe_w)) 2436 if (ev_is_active (&pipe_w))
2352 { 2437 {
2353 /*ev_ref (EV_A);*/ 2438 /*ev_ref (EV_A);*/
2354 /*ev_io_stop (EV_A_ &pipe_w);*/ 2439 /*ev_io_stop (EV_A_ &pipe_w);*/
2355 2440
2356#if EV_USE_EVENTFD
2357 if (evfd >= 0)
2358 close (evfd);
2359#endif
2360
2361 if (evpipe [0] >= 0)
2362 {
2363 EV_WIN32_CLOSE_FD (evpipe [0]); 2441 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2364 EV_WIN32_CLOSE_FD (evpipe [1]); 2442 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2365 }
2366 } 2443 }
2367 2444
2368#if EV_USE_SIGNALFD 2445#if EV_USE_SIGNALFD
2369 if (ev_is_active (&sigfd_w)) 2446 if (ev_is_active (&sigfd_w))
2370 close (sigfd); 2447 close (sigfd);
2456#endif 2533#endif
2457#if EV_USE_INOTIFY 2534#if EV_USE_INOTIFY
2458 infy_fork (EV_A); 2535 infy_fork (EV_A);
2459#endif 2536#endif
2460 2537
2538#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2461 if (ev_is_active (&pipe_w)) 2539 if (ev_is_active (&pipe_w))
2462 { 2540 {
2463 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2541 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2464 2542
2465 ev_ref (EV_A); 2543 ev_ref (EV_A);
2466 ev_io_stop (EV_A_ &pipe_w); 2544 ev_io_stop (EV_A_ &pipe_w);
2467 2545
2468#if EV_USE_EVENTFD
2469 if (evfd >= 0)
2470 close (evfd);
2471#endif
2472
2473 if (evpipe [0] >= 0) 2546 if (evpipe [0] >= 0)
2474 {
2475 EV_WIN32_CLOSE_FD (evpipe [0]); 2547 EV_WIN32_CLOSE_FD (evpipe [0]);
2476 EV_WIN32_CLOSE_FD (evpipe [1]);
2477 }
2478 2548
2479#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2480 evpipe_init (EV_A); 2549 evpipe_init (EV_A);
2481 /* now iterate over everything, in case we missed something */ 2550 /* iterate over everything, in case we missed something before */
2482 pipecb (EV_A_ &pipe_w, EV_READ); 2551 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2483#endif
2484 } 2552 }
2553#endif
2485 2554
2486 postfork = 0; 2555 postfork = 0;
2487} 2556}
2488 2557
2489#if EV_MULTIPLICITY 2558#if EV_MULTIPLICITY
2490 2559
2491struct ev_loop * ecb_cold 2560struct ev_loop * ecb_cold
2492ev_loop_new (unsigned int flags) 2561ev_loop_new (unsigned int flags) EV_THROW
2493{ 2562{
2494 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2563 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2495 2564
2496 memset (EV_A, 0, sizeof (struct ev_loop)); 2565 memset (EV_A, 0, sizeof (struct ev_loop));
2497 loop_init (EV_A_ flags); 2566 loop_init (EV_A_ flags);
2541} 2610}
2542#endif 2611#endif
2543 2612
2544#if EV_FEATURE_API 2613#if EV_FEATURE_API
2545void ecb_cold 2614void ecb_cold
2546ev_verify (EV_P) 2615ev_verify (EV_P) EV_THROW
2547{ 2616{
2548#if EV_VERIFY 2617#if EV_VERIFY
2549 int i; 2618 int i;
2550 WL w; 2619 WL w, w2;
2551 2620
2552 assert (activecnt >= -1); 2621 assert (activecnt >= -1);
2553 2622
2554 assert (fdchangemax >= fdchangecnt); 2623 assert (fdchangemax >= fdchangecnt);
2555 for (i = 0; i < fdchangecnt; ++i) 2624 for (i = 0; i < fdchangecnt; ++i)
2556 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2625 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2557 2626
2558 assert (anfdmax >= 0); 2627 assert (anfdmax >= 0);
2559 for (i = 0; i < anfdmax; ++i) 2628 for (i = 0; i < anfdmax; ++i)
2629 {
2630 int j = 0;
2631
2560 for (w = anfds [i].head; w; w = w->next) 2632 for (w = w2 = anfds [i].head; w; w = w->next)
2561 { 2633 {
2562 verify_watcher (EV_A_ (W)w); 2634 verify_watcher (EV_A_ (W)w);
2635
2636 if (j++ & 1)
2637 {
2638 assert (("libev: io watcher list contains a loop", w != w2));
2639 w2 = w2->next;
2640 }
2641
2563 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2642 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2564 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2643 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2565 } 2644 }
2645 }
2566 2646
2567 assert (timermax >= timercnt); 2647 assert (timermax >= timercnt);
2568 verify_heap (EV_A_ timers, timercnt); 2648 verify_heap (EV_A_ timers, timercnt);
2569 2649
2570#if EV_PERIODIC_ENABLE 2650#if EV_PERIODIC_ENABLE
2620#if EV_MULTIPLICITY 2700#if EV_MULTIPLICITY
2621struct ev_loop * ecb_cold 2701struct ev_loop * ecb_cold
2622#else 2702#else
2623int 2703int
2624#endif 2704#endif
2625ev_default_loop (unsigned int flags) 2705ev_default_loop (unsigned int flags) EV_THROW
2626{ 2706{
2627 if (!ev_default_loop_ptr) 2707 if (!ev_default_loop_ptr)
2628 { 2708 {
2629#if EV_MULTIPLICITY 2709#if EV_MULTIPLICITY
2630 EV_P = ev_default_loop_ptr = &default_loop_struct; 2710 EV_P = ev_default_loop_ptr = &default_loop_struct;
2649 2729
2650 return ev_default_loop_ptr; 2730 return ev_default_loop_ptr;
2651} 2731}
2652 2732
2653void 2733void
2654ev_loop_fork (EV_P) 2734ev_loop_fork (EV_P) EV_THROW
2655{ 2735{
2656 postfork = 1; /* must be in line with ev_default_fork */ 2736 postfork = 1;
2657} 2737}
2658 2738
2659/*****************************************************************************/ 2739/*****************************************************************************/
2660 2740
2661void 2741void
2663{ 2743{
2664 EV_CB_INVOKE ((W)w, revents); 2744 EV_CB_INVOKE ((W)w, revents);
2665} 2745}
2666 2746
2667unsigned int 2747unsigned int
2668ev_pending_count (EV_P) 2748ev_pending_count (EV_P) EV_THROW
2669{ 2749{
2670 int pri; 2750 int pri;
2671 unsigned int count = 0; 2751 unsigned int count = 0;
2672 2752
2673 for (pri = NUMPRI; pri--; ) 2753 for (pri = NUMPRI; pri--; )
2677} 2757}
2678 2758
2679void noinline 2759void noinline
2680ev_invoke_pending (EV_P) 2760ev_invoke_pending (EV_P)
2681{ 2761{
2682 int pri; 2762 pendingpri = NUMPRI;
2683 2763
2684 for (pri = NUMPRI; pri--; ) 2764 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
2765 {
2766 --pendingpri;
2767
2685 while (pendingcnt [pri]) 2768 while (pendingcnt [pendingpri])
2686 { 2769 {
2687 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2770 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2688 2771
2689 p->w->pending = 0; 2772 p->w->pending = 0;
2690 EV_CB_INVOKE (p->w, p->events); 2773 EV_CB_INVOKE (p->w, p->events);
2691 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2692 } 2775 }
2776 }
2693} 2777}
2694 2778
2695#if EV_IDLE_ENABLE 2779#if EV_IDLE_ENABLE
2696/* make idle watchers pending. this handles the "call-idle */ 2780/* make idle watchers pending. this handles the "call-idle */
2697/* only when higher priorities are idle" logic */ 2781/* only when higher priorities are idle" logic */
2787{ 2871{
2788 EV_FREQUENT_CHECK; 2872 EV_FREQUENT_CHECK;
2789 2873
2790 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2874 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2791 { 2875 {
2792 int feed_count = 0;
2793
2794 do 2876 do
2795 { 2877 {
2796 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2878 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2797 2879
2798 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2880 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
3057 backend_poll (EV_A_ waittime); 3139 backend_poll (EV_A_ waittime);
3058 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3140 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3059 3141
3060 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3142 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3061 3143
3144 ECB_MEMORY_FENCE_ACQUIRE;
3062 if (pipe_write_skipped) 3145 if (pipe_write_skipped)
3063 { 3146 {
3064 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3147 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3065 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3148 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3066 } 3149 }
3104 3187
3105 return activecnt; 3188 return activecnt;
3106} 3189}
3107 3190
3108void 3191void
3109ev_break (EV_P_ int how) 3192ev_break (EV_P_ int how) EV_THROW
3110{ 3193{
3111 loop_done = how; 3194 loop_done = how;
3112} 3195}
3113 3196
3114void 3197void
3115ev_ref (EV_P) 3198ev_ref (EV_P) EV_THROW
3116{ 3199{
3117 ++activecnt; 3200 ++activecnt;
3118} 3201}
3119 3202
3120void 3203void
3121ev_unref (EV_P) 3204ev_unref (EV_P) EV_THROW
3122{ 3205{
3123 --activecnt; 3206 --activecnt;
3124} 3207}
3125 3208
3126void 3209void
3127ev_now_update (EV_P) 3210ev_now_update (EV_P) EV_THROW
3128{ 3211{
3129 time_update (EV_A_ 1e100); 3212 time_update (EV_A_ 1e100);
3130} 3213}
3131 3214
3132void 3215void
3133ev_suspend (EV_P) 3216ev_suspend (EV_P) EV_THROW
3134{ 3217{
3135 ev_now_update (EV_A); 3218 ev_now_update (EV_A);
3136} 3219}
3137 3220
3138void 3221void
3139ev_resume (EV_P) 3222ev_resume (EV_P) EV_THROW
3140{ 3223{
3141 ev_tstamp mn_prev = mn_now; 3224 ev_tstamp mn_prev = mn_now;
3142 3225
3143 ev_now_update (EV_A); 3226 ev_now_update (EV_A);
3144 timers_reschedule (EV_A_ mn_now - mn_prev); 3227 timers_reschedule (EV_A_ mn_now - mn_prev);
3183 w->pending = 0; 3266 w->pending = 0;
3184 } 3267 }
3185} 3268}
3186 3269
3187int 3270int
3188ev_clear_pending (EV_P_ void *w) 3271ev_clear_pending (EV_P_ void *w) EV_THROW
3189{ 3272{
3190 W w_ = (W)w; 3273 W w_ = (W)w;
3191 int pending = w_->pending; 3274 int pending = w_->pending;
3192 3275
3193 if (expect_true (pending)) 3276 if (expect_true (pending))
3226} 3309}
3227 3310
3228/*****************************************************************************/ 3311/*****************************************************************************/
3229 3312
3230void noinline 3313void noinline
3231ev_io_start (EV_P_ ev_io *w) 3314ev_io_start (EV_P_ ev_io *w) EV_THROW
3232{ 3315{
3233 int fd = w->fd; 3316 int fd = w->fd;
3234 3317
3235 if (expect_false (ev_is_active (w))) 3318 if (expect_false (ev_is_active (w)))
3236 return; 3319 return;
3242 3325
3243 ev_start (EV_A_ (W)w, 1); 3326 ev_start (EV_A_ (W)w, 1);
3244 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3327 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3245 wlist_add (&anfds[fd].head, (WL)w); 3328 wlist_add (&anfds[fd].head, (WL)w);
3246 3329
3330 /* common bug, apparently */
3331 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3332
3247 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3333 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3248 w->events &= ~EV__IOFDSET; 3334 w->events &= ~EV__IOFDSET;
3249 3335
3250 EV_FREQUENT_CHECK; 3336 EV_FREQUENT_CHECK;
3251} 3337}
3252 3338
3253void noinline 3339void noinline
3254ev_io_stop (EV_P_ ev_io *w) 3340ev_io_stop (EV_P_ ev_io *w) EV_THROW
3255{ 3341{
3256 clear_pending (EV_A_ (W)w); 3342 clear_pending (EV_A_ (W)w);
3257 if (expect_false (!ev_is_active (w))) 3343 if (expect_false (!ev_is_active (w)))
3258 return; 3344 return;
3259 3345
3268 3354
3269 EV_FREQUENT_CHECK; 3355 EV_FREQUENT_CHECK;
3270} 3356}
3271 3357
3272void noinline 3358void noinline
3273ev_timer_start (EV_P_ ev_timer *w) 3359ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3274{ 3360{
3275 if (expect_false (ev_is_active (w))) 3361 if (expect_false (ev_is_active (w)))
3276 return; 3362 return;
3277 3363
3278 ev_at (w) += mn_now; 3364 ev_at (w) += mn_now;
3292 3378
3293 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3379 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3294} 3380}
3295 3381
3296void noinline 3382void noinline
3297ev_timer_stop (EV_P_ ev_timer *w) 3383ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3298{ 3384{
3299 clear_pending (EV_A_ (W)w); 3385 clear_pending (EV_A_ (W)w);
3300 if (expect_false (!ev_is_active (w))) 3386 if (expect_false (!ev_is_active (w)))
3301 return; 3387 return;
3302 3388
3322 3408
3323 EV_FREQUENT_CHECK; 3409 EV_FREQUENT_CHECK;
3324} 3410}
3325 3411
3326void noinline 3412void noinline
3327ev_timer_again (EV_P_ ev_timer *w) 3413ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3328{ 3414{
3329 EV_FREQUENT_CHECK; 3415 EV_FREQUENT_CHECK;
3330 3416
3331 clear_pending (EV_A_ (W)w); 3417 clear_pending (EV_A_ (W)w);
3332 3418
3349 3435
3350 EV_FREQUENT_CHECK; 3436 EV_FREQUENT_CHECK;
3351} 3437}
3352 3438
3353ev_tstamp 3439ev_tstamp
3354ev_timer_remaining (EV_P_ ev_timer *w) 3440ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3355{ 3441{
3356 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3442 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3357} 3443}
3358 3444
3359#if EV_PERIODIC_ENABLE 3445#if EV_PERIODIC_ENABLE
3360void noinline 3446void noinline
3361ev_periodic_start (EV_P_ ev_periodic *w) 3447ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3362{ 3448{
3363 if (expect_false (ev_is_active (w))) 3449 if (expect_false (ev_is_active (w)))
3364 return; 3450 return;
3365 3451
3366 if (w->reschedule_cb) 3452 if (w->reschedule_cb)
3386 3472
3387 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3473 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3388} 3474}
3389 3475
3390void noinline 3476void noinline
3391ev_periodic_stop (EV_P_ ev_periodic *w) 3477ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3392{ 3478{
3393 clear_pending (EV_A_ (W)w); 3479 clear_pending (EV_A_ (W)w);
3394 if (expect_false (!ev_is_active (w))) 3480 if (expect_false (!ev_is_active (w)))
3395 return; 3481 return;
3396 3482
3414 3500
3415 EV_FREQUENT_CHECK; 3501 EV_FREQUENT_CHECK;
3416} 3502}
3417 3503
3418void noinline 3504void noinline
3419ev_periodic_again (EV_P_ ev_periodic *w) 3505ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3420{ 3506{
3421 /* TODO: use adjustheap and recalculation */ 3507 /* TODO: use adjustheap and recalculation */
3422 ev_periodic_stop (EV_A_ w); 3508 ev_periodic_stop (EV_A_ w);
3423 ev_periodic_start (EV_A_ w); 3509 ev_periodic_start (EV_A_ w);
3424} 3510}
3429#endif 3515#endif
3430 3516
3431#if EV_SIGNAL_ENABLE 3517#if EV_SIGNAL_ENABLE
3432 3518
3433void noinline 3519void noinline
3434ev_signal_start (EV_P_ ev_signal *w) 3520ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3435{ 3521{
3436 if (expect_false (ev_is_active (w))) 3522 if (expect_false (ev_is_active (w)))
3437 return; 3523 return;
3438 3524
3439 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3525 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3441#if EV_MULTIPLICITY 3527#if EV_MULTIPLICITY
3442 assert (("libev: a signal must not be attached to two different loops", 3528 assert (("libev: a signal must not be attached to two different loops",
3443 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3529 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3444 3530
3445 signals [w->signum - 1].loop = EV_A; 3531 signals [w->signum - 1].loop = EV_A;
3532 ECB_MEMORY_FENCE_RELEASE;
3446#endif 3533#endif
3447 3534
3448 EV_FREQUENT_CHECK; 3535 EV_FREQUENT_CHECK;
3449 3536
3450#if EV_USE_SIGNALFD 3537#if EV_USE_SIGNALFD
3510 3597
3511 EV_FREQUENT_CHECK; 3598 EV_FREQUENT_CHECK;
3512} 3599}
3513 3600
3514void noinline 3601void noinline
3515ev_signal_stop (EV_P_ ev_signal *w) 3602ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3516{ 3603{
3517 clear_pending (EV_A_ (W)w); 3604 clear_pending (EV_A_ (W)w);
3518 if (expect_false (!ev_is_active (w))) 3605 if (expect_false (!ev_is_active (w)))
3519 return; 3606 return;
3520 3607
3551#endif 3638#endif
3552 3639
3553#if EV_CHILD_ENABLE 3640#if EV_CHILD_ENABLE
3554 3641
3555void 3642void
3556ev_child_start (EV_P_ ev_child *w) 3643ev_child_start (EV_P_ ev_child *w) EV_THROW
3557{ 3644{
3558#if EV_MULTIPLICITY 3645#if EV_MULTIPLICITY
3559 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3646 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3560#endif 3647#endif
3561 if (expect_false (ev_is_active (w))) 3648 if (expect_false (ev_is_active (w)))
3568 3655
3569 EV_FREQUENT_CHECK; 3656 EV_FREQUENT_CHECK;
3570} 3657}
3571 3658
3572void 3659void
3573ev_child_stop (EV_P_ ev_child *w) 3660ev_child_stop (EV_P_ ev_child *w) EV_THROW
3574{ 3661{
3575 clear_pending (EV_A_ (W)w); 3662 clear_pending (EV_A_ (W)w);
3576 if (expect_false (!ev_is_active (w))) 3663 if (expect_false (!ev_is_active (w)))
3577 return; 3664 return;
3578 3665
3830#else 3917#else
3831# define EV_LSTAT(p,b) lstat (p, b) 3918# define EV_LSTAT(p,b) lstat (p, b)
3832#endif 3919#endif
3833 3920
3834void 3921void
3835ev_stat_stat (EV_P_ ev_stat *w) 3922ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3836{ 3923{
3837 if (lstat (w->path, &w->attr) < 0) 3924 if (lstat (w->path, &w->attr) < 0)
3838 w->attr.st_nlink = 0; 3925 w->attr.st_nlink = 0;
3839 else if (!w->attr.st_nlink) 3926 else if (!w->attr.st_nlink)
3840 w->attr.st_nlink = 1; 3927 w->attr.st_nlink = 1;
3879 ev_feed_event (EV_A_ w, EV_STAT); 3966 ev_feed_event (EV_A_ w, EV_STAT);
3880 } 3967 }
3881} 3968}
3882 3969
3883void 3970void
3884ev_stat_start (EV_P_ ev_stat *w) 3971ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3885{ 3972{
3886 if (expect_false (ev_is_active (w))) 3973 if (expect_false (ev_is_active (w)))
3887 return; 3974 return;
3888 3975
3889 ev_stat_stat (EV_A_ w); 3976 ev_stat_stat (EV_A_ w);
3910 3997
3911 EV_FREQUENT_CHECK; 3998 EV_FREQUENT_CHECK;
3912} 3999}
3913 4000
3914void 4001void
3915ev_stat_stop (EV_P_ ev_stat *w) 4002ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3916{ 4003{
3917 clear_pending (EV_A_ (W)w); 4004 clear_pending (EV_A_ (W)w);
3918 if (expect_false (!ev_is_active (w))) 4005 if (expect_false (!ev_is_active (w)))
3919 return; 4006 return;
3920 4007
3936} 4023}
3937#endif 4024#endif
3938 4025
3939#if EV_IDLE_ENABLE 4026#if EV_IDLE_ENABLE
3940void 4027void
3941ev_idle_start (EV_P_ ev_idle *w) 4028ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3942{ 4029{
3943 if (expect_false (ev_is_active (w))) 4030 if (expect_false (ev_is_active (w)))
3944 return; 4031 return;
3945 4032
3946 pri_adjust (EV_A_ (W)w); 4033 pri_adjust (EV_A_ (W)w);
3959 4046
3960 EV_FREQUENT_CHECK; 4047 EV_FREQUENT_CHECK;
3961} 4048}
3962 4049
3963void 4050void
3964ev_idle_stop (EV_P_ ev_idle *w) 4051ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3965{ 4052{
3966 clear_pending (EV_A_ (W)w); 4053 clear_pending (EV_A_ (W)w);
3967 if (expect_false (!ev_is_active (w))) 4054 if (expect_false (!ev_is_active (w)))
3968 return; 4055 return;
3969 4056
3983} 4070}
3984#endif 4071#endif
3985 4072
3986#if EV_PREPARE_ENABLE 4073#if EV_PREPARE_ENABLE
3987void 4074void
3988ev_prepare_start (EV_P_ ev_prepare *w) 4075ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3989{ 4076{
3990 if (expect_false (ev_is_active (w))) 4077 if (expect_false (ev_is_active (w)))
3991 return; 4078 return;
3992 4079
3993 EV_FREQUENT_CHECK; 4080 EV_FREQUENT_CHECK;
3998 4085
3999 EV_FREQUENT_CHECK; 4086 EV_FREQUENT_CHECK;
4000} 4087}
4001 4088
4002void 4089void
4003ev_prepare_stop (EV_P_ ev_prepare *w) 4090ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
4004{ 4091{
4005 clear_pending (EV_A_ (W)w); 4092 clear_pending (EV_A_ (W)w);
4006 if (expect_false (!ev_is_active (w))) 4093 if (expect_false (!ev_is_active (w)))
4007 return; 4094 return;
4008 4095
4021} 4108}
4022#endif 4109#endif
4023 4110
4024#if EV_CHECK_ENABLE 4111#if EV_CHECK_ENABLE
4025void 4112void
4026ev_check_start (EV_P_ ev_check *w) 4113ev_check_start (EV_P_ ev_check *w) EV_THROW
4027{ 4114{
4028 if (expect_false (ev_is_active (w))) 4115 if (expect_false (ev_is_active (w)))
4029 return; 4116 return;
4030 4117
4031 EV_FREQUENT_CHECK; 4118 EV_FREQUENT_CHECK;
4036 4123
4037 EV_FREQUENT_CHECK; 4124 EV_FREQUENT_CHECK;
4038} 4125}
4039 4126
4040void 4127void
4041ev_check_stop (EV_P_ ev_check *w) 4128ev_check_stop (EV_P_ ev_check *w) EV_THROW
4042{ 4129{
4043 clear_pending (EV_A_ (W)w); 4130 clear_pending (EV_A_ (W)w);
4044 if (expect_false (!ev_is_active (w))) 4131 if (expect_false (!ev_is_active (w)))
4045 return; 4132 return;
4046 4133
4059} 4146}
4060#endif 4147#endif
4061 4148
4062#if EV_EMBED_ENABLE 4149#if EV_EMBED_ENABLE
4063void noinline 4150void noinline
4064ev_embed_sweep (EV_P_ ev_embed *w) 4151ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4065{ 4152{
4066 ev_run (w->other, EVRUN_NOWAIT); 4153 ev_run (w->other, EVRUN_NOWAIT);
4067} 4154}
4068 4155
4069static void 4156static void
4117 ev_idle_stop (EV_A_ idle); 4204 ev_idle_stop (EV_A_ idle);
4118} 4205}
4119#endif 4206#endif
4120 4207
4121void 4208void
4122ev_embed_start (EV_P_ ev_embed *w) 4209ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4123{ 4210{
4124 if (expect_false (ev_is_active (w))) 4211 if (expect_false (ev_is_active (w)))
4125 return; 4212 return;
4126 4213
4127 { 4214 {
4148 4235
4149 EV_FREQUENT_CHECK; 4236 EV_FREQUENT_CHECK;
4150} 4237}
4151 4238
4152void 4239void
4153ev_embed_stop (EV_P_ ev_embed *w) 4240ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4154{ 4241{
4155 clear_pending (EV_A_ (W)w); 4242 clear_pending (EV_A_ (W)w);
4156 if (expect_false (!ev_is_active (w))) 4243 if (expect_false (!ev_is_active (w)))
4157 return; 4244 return;
4158 4245
4168} 4255}
4169#endif 4256#endif
4170 4257
4171#if EV_FORK_ENABLE 4258#if EV_FORK_ENABLE
4172void 4259void
4173ev_fork_start (EV_P_ ev_fork *w) 4260ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4174{ 4261{
4175 if (expect_false (ev_is_active (w))) 4262 if (expect_false (ev_is_active (w)))
4176 return; 4263 return;
4177 4264
4178 EV_FREQUENT_CHECK; 4265 EV_FREQUENT_CHECK;
4183 4270
4184 EV_FREQUENT_CHECK; 4271 EV_FREQUENT_CHECK;
4185} 4272}
4186 4273
4187void 4274void
4188ev_fork_stop (EV_P_ ev_fork *w) 4275ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4189{ 4276{
4190 clear_pending (EV_A_ (W)w); 4277 clear_pending (EV_A_ (W)w);
4191 if (expect_false (!ev_is_active (w))) 4278 if (expect_false (!ev_is_active (w)))
4192 return; 4279 return;
4193 4280
4206} 4293}
4207#endif 4294#endif
4208 4295
4209#if EV_CLEANUP_ENABLE 4296#if EV_CLEANUP_ENABLE
4210void 4297void
4211ev_cleanup_start (EV_P_ ev_cleanup *w) 4298ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4212{ 4299{
4213 if (expect_false (ev_is_active (w))) 4300 if (expect_false (ev_is_active (w)))
4214 return; 4301 return;
4215 4302
4216 EV_FREQUENT_CHECK; 4303 EV_FREQUENT_CHECK;
4223 ev_unref (EV_A); 4310 ev_unref (EV_A);
4224 EV_FREQUENT_CHECK; 4311 EV_FREQUENT_CHECK;
4225} 4312}
4226 4313
4227void 4314void
4228ev_cleanup_stop (EV_P_ ev_cleanup *w) 4315ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4229{ 4316{
4230 clear_pending (EV_A_ (W)w); 4317 clear_pending (EV_A_ (W)w);
4231 if (expect_false (!ev_is_active (w))) 4318 if (expect_false (!ev_is_active (w)))
4232 return; 4319 return;
4233 4320
4247} 4334}
4248#endif 4335#endif
4249 4336
4250#if EV_ASYNC_ENABLE 4337#if EV_ASYNC_ENABLE
4251void 4338void
4252ev_async_start (EV_P_ ev_async *w) 4339ev_async_start (EV_P_ ev_async *w) EV_THROW
4253{ 4340{
4254 if (expect_false (ev_is_active (w))) 4341 if (expect_false (ev_is_active (w)))
4255 return; 4342 return;
4256 4343
4257 w->sent = 0; 4344 w->sent = 0;
4266 4353
4267 EV_FREQUENT_CHECK; 4354 EV_FREQUENT_CHECK;
4268} 4355}
4269 4356
4270void 4357void
4271ev_async_stop (EV_P_ ev_async *w) 4358ev_async_stop (EV_P_ ev_async *w) EV_THROW
4272{ 4359{
4273 clear_pending (EV_A_ (W)w); 4360 clear_pending (EV_A_ (W)w);
4274 if (expect_false (!ev_is_active (w))) 4361 if (expect_false (!ev_is_active (w)))
4275 return; 4362 return;
4276 4363
4287 4374
4288 EV_FREQUENT_CHECK; 4375 EV_FREQUENT_CHECK;
4289} 4376}
4290 4377
4291void 4378void
4292ev_async_send (EV_P_ ev_async *w) 4379ev_async_send (EV_P_ ev_async *w) EV_THROW
4293{ 4380{
4294 w->sent = 1; 4381 w->sent = 1;
4295 evpipe_write (EV_A_ &async_pending); 4382 evpipe_write (EV_A_ &async_pending);
4296} 4383}
4297#endif 4384#endif
4334 4421
4335 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4422 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4336} 4423}
4337 4424
4338void 4425void
4339ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4426ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4340{ 4427{
4341 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4428 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4342 4429
4343 if (expect_false (!once)) 4430 if (expect_false (!once))
4344 { 4431 {
4366 4453
4367/*****************************************************************************/ 4454/*****************************************************************************/
4368 4455
4369#if EV_WALK_ENABLE 4456#if EV_WALK_ENABLE
4370void ecb_cold 4457void ecb_cold
4371ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4458ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4372{ 4459{
4373 int i, j; 4460 int i, j;
4374 ev_watcher_list *wl, *wn; 4461 ev_watcher_list *wl, *wn;
4375 4462
4376 if (types & (EV_IO | EV_EMBED)) 4463 if (types & (EV_IO | EV_EMBED))

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