1 /* Copyright (C) 2008 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 #ifndef _SYS_TIMERFD_H
20 #define _SYS_TIMERFD_H 1
25 /* Bits to be set in the FLAGS parameter of `timerfd_create'. */
28 TFD_CLOEXEC
= 02000000,
29 #define TFD_CLOEXEC TFD_CLOEXEC
31 #define TFD_NONBLOCK TFD_NONBLOCK
35 /* Bits to be set in the FLAGS parameter of `timerfd_settime'. */
38 TFD_TIMER_ABSTIME
= 1 << 0
39 #define TFD_TIMER_ABSTIME TFD_TIMER_ABSTIME
45 /* Return file descriptor for new interval timer source. */
46 extern int timerfd_create (clockid_t __clock_id
, int __flags
) __THROW
;
48 /* Set next expiration time of interval timer source UFD to UTMR. If
49 FLAGS has the TFD_TIMER_ABSTIME flag set the timeout value is
50 absolute. Optionally return the old expiration time in OTMR. */
51 extern int timerfd_settime (int __ufd
, int __flags
,
52 __const
struct itimerspec
*__utmr
,
53 struct itimerspec
*__otmr
) __THROW
;
55 /* Return the next expiration time of UFD. */
56 extern int timerfd_gettime (int __ufd
, struct itimerspec
*__otmr
) __THROW
;
60 #endif /* sys/timerfd.h */
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