Commit | Line | Data |
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b215e283 DL |
1 | /* |
2 | * include/linux/timerfd.h | |
3 | * | |
4 | * Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org> | |
5 | * | |
6 | */ | |
7 | ||
8 | #ifndef _LINUX_TIMERFD_H | |
9 | #define _LINUX_TIMERFD_H | |
10 | ||
6b1ef0e6 | 11 | /* For O_CLOEXEC and O_NONBLOCK */ |
11fcb6c1 | 12 | #include <linux/fcntl.h> |
b215e283 | 13 | |
5442e9fb CG |
14 | /* For _IO helpers */ |
15 | #include <linux/ioctl.h> | |
16 | ||
610d18f4 DL |
17 | /* |
18 | * CAREFUL: Check include/asm-generic/fcntl.h when defining | |
19 | * new flags, since they might collide with O_* ones. We want | |
20 | * to re-use O_* flags that couldn't possibly have a meaning | |
21 | * from eventfd, in order to leave a free define-space for | |
22 | * shared O_* flags. | |
23 | */ | |
b215e283 | 24 | #define TFD_TIMER_ABSTIME (1 << 0) |
9ec26907 | 25 | #define TFD_TIMER_CANCEL_ON_SET (1 << 1) |
11fcb6c1 | 26 | #define TFD_CLOEXEC O_CLOEXEC |
6b1ef0e6 | 27 | #define TFD_NONBLOCK O_NONBLOCK |
b215e283 | 28 | |
610d18f4 DL |
29 | #define TFD_SHARED_FCNTL_FLAGS (TFD_CLOEXEC | TFD_NONBLOCK) |
30 | /* Flags for timerfd_create. */ | |
31 | #define TFD_CREATE_FLAGS TFD_SHARED_FCNTL_FLAGS | |
32 | /* Flags for timerfd_settime. */ | |
9ec26907 | 33 | #define TFD_SETTIME_FLAGS (TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET) |
b215e283 | 34 | |
5442e9fb CG |
35 | #define TFD_IOC_SET_TICKS _IOW('T', 0, u64) |
36 | ||
b215e283 | 37 | #endif /* _LINUX_TIMERFD_H */ |