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/cvs/libev/ev.c
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Comparing libev/ev.c (file contents):
Revision 1.313 by root, Wed Aug 19 23:44:51 2009 UTC vs.
Revision 1.316 by root, Fri Sep 18 21:02:12 2009 UTC

302# define EV_USE_EVENTFD 0 302# define EV_USE_EVENTFD 0
303# endif 303# endif
304#endif 304#endif
305 305
306#ifndef EV_USE_SIGNALFD 306#ifndef EV_USE_SIGNALFD
307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) 307# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
308# define EV_USE_SIGNALFD 1 308# define EV_USE_SIGNALFD 1
309# else 309# else
310# define EV_USE_SIGNALFD 0 310# define EV_USE_SIGNALFD 0
311# endif 311# endif
312#endif 312#endif
402} 402}
403# endif 403# endif
404#endif 404#endif
405 405
406#if EV_USE_SIGNALFD 406#if EV_USE_SIGNALFD
407# include <sys/signalfd.h> 407/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
408# include <stdint.h>
409# ifndef SFD_NONBLOCK
410# define SFD_NONBLOCK O_NONBLOCK
408#endif 411# endif
412# ifndef SFD_CLOEXEC
413# ifdef O_CLOEXEC
414# define SFD_CLOEXEC O_CLOEXEC
415# else
416# define SFD_CLOEXEC 02000000
417# endif
418# endif
419# ifdef __cplusplus
420extern "C" {
421# endif
422int signalfd (int fd, const sigset_t *mask, int flags);
423
424struct signalfd_siginfo
425{
426 uint32_t ssi_signo;
427 char pad[128 - sizeof (uint32_t)];
428};
429# ifdef __cplusplus
430}
431# endif
432#endif
433
409 434
410/**/ 435/**/
411 436
412#if EV_VERIFY >= 3 437#if EV_VERIFY >= 3
413# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 438# define EV_FREQUENT_CHECK ev_loop_verify (EV_A)
425 */ 450 */
426#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 451#define TIME_EPSILON 0.0001220703125 /* 1/8192 */
427 452
428#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 453#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
429#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 454#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
430/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
431 455
432#if __GNUC__ >= 4 456#if __GNUC__ >= 4
433# define expect(expr,value) __builtin_expect ((expr),(value)) 457# define expect(expr,value) __builtin_expect ((expr),(value))
434# define noinline __attribute__ ((noinline)) 458# define noinline __attribute__ ((noinline))
435#else 459#else
2972 return; 2996 return;
2973 2997
2974 fs_2625 = 1; 2998 fs_2625 = 1;
2975} 2999}
2976 3000
3001inline_size int
3002infy_newfd (void)
3003{
3004#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3005 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3006 if (fd >= 0)
3007 return fd;
3008#endif
3009 return inotify_init ();
3010}
3011
2977inline_size void 3012inline_size void
2978infy_init (EV_P) 3013infy_init (EV_P)
2979{ 3014{
2980 if (fs_fd != -2) 3015 if (fs_fd != -2)
2981 return; 3016 return;
2982 3017
2983 fs_fd = -1; 3018 fs_fd = -1;
2984 3019
2985 check_2625 (EV_A); 3020 check_2625 (EV_A);
2986 3021
2987 fs_fd = inotify_init (); 3022 fs_fd = infy_newfd ();
2988 3023
2989 if (fs_fd >= 0) 3024 if (fs_fd >= 0)
2990 { 3025 {
3026 fd_intern (fs_fd);
2991 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3027 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2992 ev_set_priority (&fs_w, EV_MAXPRI); 3028 ev_set_priority (&fs_w, EV_MAXPRI);
2993 ev_io_start (EV_A_ &fs_w); 3029 ev_io_start (EV_A_ &fs_w);
2994 } 3030 }
2995} 3031}
3000 int slot; 3036 int slot;
3001 3037
3002 if (fs_fd < 0) 3038 if (fs_fd < 0)
3003 return; 3039 return;
3004 3040
3041 ev_io_stop (EV_A_ &fs_w);
3005 close (fs_fd); 3042 close (fs_fd);
3006 fs_fd = inotify_init (); 3043 fs_fd = infy_newfd ();
3044
3045 if (fs_fd >= 0)
3046 {
3047 fd_intern (fs_fd);
3048 ev_io_set (&fs_w, fs_fd, EV_READ);
3049 ev_io_start (EV_A_ &fs_w);
3050 }
3007 3051
3008 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3052 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot)
3009 { 3053 {
3010 WL w_ = fs_hash [slot].head; 3054 WL w_ = fs_hash [slot].head;
3011 fs_hash [slot].head = 0; 3055 fs_hash [slot].head = 0;

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