1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * This file and its contents are supplied under the terms of the
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * Common Development and Distribution License ("CDDL"), version 1.0.
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * You may only use this file in accordance with the terms of version
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * 1.0 of the CDDL.
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * A full copy of the text of the CDDL should have accompanied this
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * source. A copy of the CDDL is also available via the Internet at
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * Copyright (c) 2015 Joyent, Inc. All rights reserved.
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * Header file to support for the eventfd facility. Note that this facility
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * is designed to be binary compatible with the Linux eventfd facility; values
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * for constants here should therefore exactly match those found in Linux, and
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * this facility shouldn't be extended independently of Linux.
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * To assure binary compatibility with Linux, these values are fixed at their
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * Linux equivalents, not their native ones.
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill#define EFD_CLOEXEC 02000000 /* LX_O_CLOEXEC */
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill#define EFD_NONBLOCK 04000 /* LX_O_NONBLOCK */
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * These ioctl values are specific to the native implementation; applications
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * shouldn't be using them directly, and they should therefore be safe to
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill * change without breaking apps.
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill#define EVENTFDIOC (('e' << 24) | ('f' << 16) | ('d' << 8))
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill#define EVENTFDIOC_SEMAPHORE (EVENTFDIOC | 1) /* toggle sem state */
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrillextern int eventfd(unsigned int, int);
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill#endif /* _KERNEL */
1767006bb066ef500b90b432fba79d63d0d09b36Bryan Cantrill#endif /* _SYS_EVENTFD_H */