6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * This file and its contents are supplied under the terms of the
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * Common Development and Distribution License ("CDDL"), version 1.0.
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * You may only use this file in accordance with the terms of version
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * 1.0 of the CDDL.
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * A full copy of the text of the CDDL should have accompanied this
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * source. A copy of the CDDL is also available via the Internet at
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * Copyright (c) 2015 Joyent, Inc. All rights reserved.
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * Header file to support for the timerfd facility.
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * To assure binary compatibility with Linux, these values are fixed at their
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * Linux equivalents, not their native ones.
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill#define TFD_CLOEXEC 02000000 /* LX_O_CLOEXEC */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill#define TFD_NONBLOCK 04000 /* LX_O_NONBLOCK */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * These ioctl values are specific to the native implementation; applications
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * shouldn't be using them directly, and they should therefore be safe to
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * change without breaking apps.
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill#define TIMERFDIOC (('t' << 24) | ('f' << 16) | ('d' << 8))
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill#define TIMERFDIOC_CREATE (TIMERFDIOC | 1) /* create timer */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill#define TIMERFDIOC_SETTIME (TIMERFDIOC | 2) /* timerfd_settime() */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill#define TIMERFDIOC_GETTIME (TIMERFDIOC | 3) /* timerfd_gettime() */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill uint64_t tfd_settime_flags; /* flags (e.g., TFD_TIMER_ABSTIME) */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill uint64_t tfd_settime_value; /* pointer to value */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill uint64_t tfd_settime_ovalue; /* pointer to old value, if any */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrillextern int timerfd_create(int, int);
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrillextern int timerfd_settime(int, int,
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill const struct itimerspec *, struct itimerspec *);
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrillextern int timerfd_gettime(int, struct itimerspec *);
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * Fortunately, the values for the Linux clocks that are valid for timerfd
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill * (namely, CLOCK_REALTIME and CLOCK_MONOTONIC) don't overlap with our values
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill#define TIMERFD_MONOTONIC 1 /* Linux value for CLOCK_MONOTONIC */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill#endif /* _KERNEL */
6a72db4a7fa12c3e0d1c1cf91a07390739fa0fbfBryan Cantrill#endif /* _SYS_TIMERFD_H */