1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux <<
2 /* 1 /*
3 * include/linux/timerfd.h 2 * include/linux/timerfd.h
4 * 3 *
5 * Copyright (C) 2007 Davide Libenzi <davide 4 * Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
6 * 5 *
7 */ 6 */
8 7
9 #ifndef _UAPI_LINUX_TIMERFD_H 8 #ifndef _UAPI_LINUX_TIMERFD_H
10 #define _UAPI_LINUX_TIMERFD_H 9 #define _UAPI_LINUX_TIMERFD_H
11 10
12 #include <linux/types.h> 11 #include <linux/types.h>
13 12
14 /* For O_CLOEXEC and O_NONBLOCK */ 13 /* For O_CLOEXEC and O_NONBLOCK */
15 #include <linux/fcntl.h> 14 #include <linux/fcntl.h>
16 15
17 /* For _IO helpers */ 16 /* For _IO helpers */
18 #include <linux/ioctl.h> 17 #include <linux/ioctl.h>
19 18
20 /* 19 /*
21 * CAREFUL: Check include/asm-generic/fcntl.h 20 * CAREFUL: Check include/asm-generic/fcntl.h when defining
22 * new flags, since they might collide with O_ 21 * new flags, since they might collide with O_* ones. We want
23 * to re-use O_* flags that couldn't possibly 22 * to re-use O_* flags that couldn't possibly have a meaning
24 * from eventfd, in order to leave a free defi 23 * from eventfd, in order to leave a free define-space for
25 * shared O_* flags. 24 * shared O_* flags.
26 * 25 *
27 * Also make sure to update the masks in inclu 26 * Also make sure to update the masks in include/linux/timerfd.h
28 * when adding new flags. 27 * when adding new flags.
29 */ 28 */
30 #define TFD_TIMER_ABSTIME (1 << 0) 29 #define TFD_TIMER_ABSTIME (1 << 0)
31 #define TFD_TIMER_CANCEL_ON_SET (1 << 1) 30 #define TFD_TIMER_CANCEL_ON_SET (1 << 1)
32 #define TFD_CLOEXEC O_CLOEXEC 31 #define TFD_CLOEXEC O_CLOEXEC
33 #define TFD_NONBLOCK O_NONBLOCK 32 #define TFD_NONBLOCK O_NONBLOCK
34 33
35 #define TFD_IOC_SET_TICKS _IOW('T', 0, _ 34 #define TFD_IOC_SET_TICKS _IOW('T', 0, __u64)
36 35
37 #endif /* _UAPI_LINUX_TIMERFD_H */ 36 #endif /* _UAPI_LINUX_TIMERFD_H */
38 37
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