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 11/* For O_CLOEXEC and O_NONBLOCK */ 12#include <linux/fcntl.h> 13 14/* 15 * CAREFUL: Check include/asm-generic/fcntl.h when defining 16 * new flags, since they might collide with O_* ones. We want 17 * to re-use O_* flags that couldn't possibly have a meaning 18 * from eventfd, in order to leave a free define-space for 19 * shared O_* flags. 20 */ 21#define TFD_TIMER_ABSTIME (1 << 0) 22#define TFD_CLOEXEC O_CLOEXEC 23#define TFD_NONBLOCK O_NONBLOCK 24 25#define TFD_SHARED_FCNTL_FLAGS (TFD_CLOEXEC | TFD_NONBLOCK) 26/* Flags for timerfd_create. */ 27#define TFD_CREATE_FLAGS TFD_SHARED_FCNTL_FLAGS 28/* Flags for timerfd_settime. */ 29#define TFD_SETTIME_FLAGS TFD_TIMER_ABSTIME 30 31#endif /* _LINUX_TIMERFD_H */ 32