Viewing file:  timerfd.h (936 B) -rw-r--r--
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* include/linux/timerfd.h
*
* Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
*
*/
#ifndef _LINUX_TIMERFD_H
#define _LINUX_TIMERFD_H
#include <linux/types.h>
/* For O_CLOEXEC and O_NONBLOCK */
#include <linux/fcntl.h>
/* For _IO helpers */
#include <linux/ioctl.h>
/*
* CAREFUL: Check include/asm-generic/fcntl.h when defining
* new flags, since they might collide with O_* ones. We want
* to re-use O_* flags that couldn't possibly have a meaning
* from eventfd, in order to leave a free define-space for
* shared O_* flags.
*
* Also make sure to update the masks in include/linux/timerfd.h
* when adding new flags.
*/
#define TFD_TIMER_ABSTIME (1 << 0)
#define TFD_TIMER_CANCEL_ON_SET (1 << 1)
#define TFD_CLOEXEC O_CLOEXEC
#define TFD_NONBLOCK O_NONBLOCK
#define TFD_IOC_SET_TICKS _IOW('T', 0, __u64)
#endif /* _LINUX_TIMERFD_H */
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