ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.450 by root, Mon Oct 8 15:43:35 2012 UTC vs.
Revision 1.456 by root, Thu Jul 4 22:32:23 2013 UTC

357 357
358#ifndef EV_HEAP_CACHE_AT 358#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
360#endif 360#endif
361 361
362#ifdef ANDROID
363/* supposedly, android doesn't typedef fd_mask */
364# undef EV_USE_SELECT
365# define EV_USE_SELECT 0
366/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367# undef EV_USE_CLOCK_SYSCALL
368# define EV_USE_CLOCK_SYSCALL 0
369#endif
370
371/* aix's poll.h seems to cause lots of trouble */
372#ifdef _AIX
373/* AIX has a completely broken poll.h header */
374# undef EV_USE_POLL
375# define EV_USE_POLL 0
376#endif
377
362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 378/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363/* which makes programs even slower. might work on other unices, too. */ 379/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 380#if EV_USE_CLOCK_SYSCALL
365# include <sys/syscall.h> 381# include <sys/syscall.h>
366# ifdef SYS_clock_gettime 382# ifdef SYS_clock_gettime
372# define EV_USE_CLOCK_SYSCALL 0 388# define EV_USE_CLOCK_SYSCALL 0
373# endif 389# endif
374#endif 390#endif
375 391
376/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 392/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383 393
384#ifndef CLOCK_MONOTONIC 394#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 395# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 396# define EV_USE_MONOTONIC 0
387#endif 397#endif
505 515
506#ifndef ECB_H 516#ifndef ECB_H
507#define ECB_H 517#define ECB_H
508 518
509/* 16 bits major, 16 bits minor */ 519/* 16 bits major, 16 bits minor */
510#define ECB_VERSION 0x00010002 520#define ECB_VERSION 0x00010003
511 521
512#ifdef _WIN32 522#ifdef _WIN32
513 typedef signed char int8_t; 523 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 524 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 525 typedef signed short int16_t;
539 #else 549 #else
540 #define ECB_PTRSIZE 4 550 #define ECB_PTRSIZE 4
541 #endif 551 #endif
542#endif 552#endif
543 553
554/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64
556 #if __ILP32
557 #define ECB_AMD64_X32 1
558 #else
559 #define ECB_AMD64 1
560 #endif
561#endif
562
544/* many compilers define _GNUC_ to some versions but then only implement 563/* many compilers define _GNUC_ to some versions but then only implement
545 * what their idiot authors think are the "more important" extensions, 564 * what their idiot authors think are the "more important" extensions,
546 * causing enormous grief in return for some better fake benchmark numbers. 565 * causing enormous grief in return for some better fake benchmark numbers.
547 * or so. 566 * or so.
548 * we try to detect these and simply assume they are not gcc - if they have 567 * we try to detect these and simply assume they are not gcc - if they have
608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
610 #elif defined __s390__ || defined __s390x__ 629 #elif defined __s390__ || defined __s390x__
611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
612 #elif defined __mips__ 631 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */
633 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
613 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 634 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
614 #elif defined __alpha__ 635 #elif defined __alpha__
615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
616 #elif defined __hppa__ 637 #elif defined __hppa__
617 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
618 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 639 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
2085 ev_syserr ("(libev) error creating signal/async pipe"); 2106 ev_syserr ("(libev) error creating signal/async pipe");
2086 2107
2087 fd_intern (fds [0]); 2108 fd_intern (fds [0]);
2088 } 2109 }
2089 2110
2090 fd_intern (fds [1]);
2091
2092 evpipe [0] = fds [0]; 2111 evpipe [0] = fds [0];
2093 2112
2094 if (evpipe [1] < 0) 2113 if (evpipe [1] < 0)
2095 evpipe [1] = fds [1]; /* first call, set write fd */ 2114 evpipe [1] = fds [1]; /* first call, set write fd */
2096 else 2115 else
2101 /* so must not be executed on windows */ 2120 /* so must not be executed on windows */
2102 2121
2103 dup2 (fds [1], evpipe [1]); 2122 dup2 (fds [1], evpipe [1]);
2104 close (fds [1]); 2123 close (fds [1]);
2105 } 2124 }
2125
2126 fd_intern (evpipe [1]);
2106 2127
2107 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); 2128 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2108 ev_io_start (EV_A_ &pipe_w); 2129 ev_io_start (EV_A_ &pipe_w);
2109 ev_unref (EV_A); /* watcher should not keep loop alive */ 2130 ev_unref (EV_A); /* watcher should not keep loop alive */
2110 } 2131 }
2229 2250
2230void 2251void
2231ev_feed_signal (int signum) EV_THROW 2252ev_feed_signal (int signum) EV_THROW
2232{ 2253{
2233#if EV_MULTIPLICITY 2254#if EV_MULTIPLICITY
2255 EV_P;
2234 ECB_MEMORY_FENCE_ACQUIRE; 2256 ECB_MEMORY_FENCE_ACQUIRE;
2235 EV_P = signals [signum - 1].loop; 2257 EV_A = signals [signum - 1].loop;
2236 2258
2237 if (!EV_A) 2259 if (!EV_A)
2238 return; 2260 return;
2239#endif 2261#endif
2240 2262
3893# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3915# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3894 3916
3895static void noinline 3917static void noinline
3896infy_add (EV_P_ ev_stat *w) 3918infy_add (EV_P_ ev_stat *w)
3897{ 3919{
3898 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3920 w->wd = inotify_add_watch (fs_fd, w->path,
3921 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3922 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3923 | IN_DONT_FOLLOW | IN_MASK_ADD);
3899 3924
3900 if (w->wd >= 0) 3925 if (w->wd >= 0)
3901 { 3926 {
3902 struct statfs sfs; 3927 struct statfs sfs;
3903 3928
3907 3932
3908 if (!fs_2625) 3933 if (!fs_2625)
3909 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3934 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3910 else if (!statfs (w->path, &sfs) 3935 else if (!statfs (w->path, &sfs)
3911 && (sfs.f_type == 0x1373 /* devfs */ 3936 && (sfs.f_type == 0x1373 /* devfs */
3937 || sfs.f_type == 0x4006 /* fat */
3938 || sfs.f_type == 0x4d44 /* msdos */
3912 || sfs.f_type == 0xEF53 /* ext2/3 */ 3939 || sfs.f_type == 0xEF53 /* ext2/3 */
3940 || sfs.f_type == 0x72b6 /* jffs2 */
3941 || sfs.f_type == 0x858458f6 /* ramfs */
3942 || sfs.f_type == 0x5346544e /* ntfs */
3913 || sfs.f_type == 0x3153464a /* jfs */ 3943 || sfs.f_type == 0x3153464a /* jfs */
3944 || sfs.f_type == 0x9123683e /* btrfs */
3914 || sfs.f_type == 0x52654973 /* reiser3 */ 3945 || sfs.f_type == 0x52654973 /* reiser3 */
3915 || sfs.f_type == 0x01021994 /* tempfs */ 3946 || sfs.f_type == 0x01021994 /* tmpfs */
3916 || sfs.f_type == 0x58465342 /* xfs */)) 3947 || sfs.f_type == 0x58465342 /* xfs */))
3917 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3948 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3918 else 3949 else
3919 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3950 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3920 } 3951 }

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines