1 /* 2 * include/linux/timerfd.h 3 * 4 * Copyright (C) 2007 Davide Libenzi <[email protected]> 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