LXR linux/include/uapi/linux/timerfd.h

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