include/uapi/linux/timerfd.h

   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 */