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1/*
2 * include/linux/timerfd.h
3 *
4 * Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
5 *
6 */
7
8#ifndef _UAPI_LINUX_TIMERFD_H
9#define _UAPI_LINUX_TIMERFD_H
10
11#include <linux/types.h>
12
13/* For O_CLOEXEC and O_NONBLOCK */
14#include <linux/fcntl.h>
15
16/* For _IO helpers */
17#include <linux/ioctl.h>
18
19/*
20 * CAREFUL: Check include/asm-generic/fcntl.h when defining
21 * new flags, since they might collide with O_* ones. We want
22 * to re-use O_* flags that couldn't possibly have a meaning
23 * from eventfd, in order to leave a free define-space for
24 * shared O_* flags.
25 *
26 * Also make sure to update the masks in include/linux/timerfd.h
27 * when adding new flags.
28 */
29#define TFD_TIMER_ABSTIME (1 << 0)
30#define TFD_TIMER_CANCEL_ON_SET (1 << 1)
31#define TFD_CLOEXEC O_CLOEXEC
32#define TFD_NONBLOCK O_NONBLOCK
33
34#define TFD_IOC_SET_TICKS _IOW('T', 0, __u64)
35
36#endif /* _UAPI_LINUX_TIMERFD_H */