freebsd-dev/sys/compat/linux/linux_timer.h
Dmitry Chagin f0f583842e Use the kern_clock_nanosleep() to implement Linux clock_nanosleep() with
the proper handling of the TIMER_ABSTIME flag.

XMFC after:	r315526

MFC after:	1 month
2017-04-02 18:16:00 +00:00

127 lines
4.1 KiB
C

/*-
* Copyright (c) 2014 Bjoern A. Zeeb
* All rights reserved.
*
* This software was developed by SRI International and the University of
* Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-11-C-0249
* ("MRC2"), as part of the DARPA MRC research programme.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LINUX_TIMER_H
#define _LINUX_TIMER_H
#ifndef __LINUX_ARCH_SIGEV_PREAMBLE_SIZE
#define __LINUX_ARCH_SIGEV_PREAMBLE_SIZE \
(sizeof(l_int) * 2 + sizeof(l_sigval_t))
#endif
#define LINUX_SIGEV_MAX_SIZE 64
#define LINUX_SIGEV_PAD_SIZE \
((LINUX_SIGEV_MAX_SIZE - __LINUX_ARCH_SIGEV_PREAMBLE_SIZE) / \
sizeof(l_int))
#define LINUX_CLOCK_REALTIME 0
#define LINUX_CLOCK_MONOTONIC 1
#define LINUX_CLOCK_PROCESS_CPUTIME_ID 2
#define LINUX_CLOCK_THREAD_CPUTIME_ID 3
#define LINUX_CLOCK_MONOTONIC_RAW 4
#define LINUX_CLOCK_REALTIME_COARSE 5
#define LINUX_CLOCK_MONOTONIC_COARSE 6
#define LINUX_CLOCK_BOOTTIME 7
#define LINUX_CLOCK_REALTIME_ALARM 8
#define LINUX_CLOCK_BOOTTIME_ALARM 9
#define LINUX_CLOCK_SGI_CYCLE 10
#define LINUX_CLOCK_TAI 11
#define LINUX_CPUCLOCK_PERTHREAD_MASK 4
#define LINUX_CPUCLOCK_MASK 3
#define LINUX_CPUCLOCK_WHICH(clock) \
((clock) & (clockid_t) LINUX_CPUCLOCK_MASK)
#define LINUX_CPUCLOCK_PROF 0
#define LINUX_CPUCLOCK_VIRT 1
#define LINUX_CPUCLOCK_SCHED 2
#define LINUX_CPUCLOCK_MAX 3
#define LINUX_CLOCKFD LINUX_CPUCLOCK_MAX
#define LINUX_CLOCKFD_MASK \
(LINUX_CPUCLOCK_PERTHREAD_MASK|LINUX_CPUCLOCK_MASK)
#define LINUX_CPUCLOCK_ID(clock) ((pid_t) ~((clock) >> 3))
#define LINUX_CPUCLOCK_PERTHREAD(clock) \
(((clock) & (clockid_t) LINUX_CPUCLOCK_PERTHREAD_MASK) != 0)
#define LINUX_TIMER_ABSTIME 0x01
#define L_SIGEV_SIGNAL 0
#define L_SIGEV_NONE 1
#define L_SIGEV_THREAD 2
#define L_SIGEV_THREAD_ID 4
#define TS_CP(src,dst,fld) do { \
CP((src).fld,(dst).fld,tv_sec); \
CP((src).fld,(dst).fld,tv_nsec); \
} while (0)
#define ITS_CP(src, dst) do { \
TS_CP((src), (dst), it_interval); \
TS_CP((src), (dst), it_value); \
} while (0)
struct l_sigevent {
l_sigval_t sigev_value;
l_int sigev_signo;
l_int sigev_notify;
union {
l_int _pad[LINUX_SIGEV_PAD_SIZE];
l_int _tid;
struct {
l_uintptr_t _function;
l_uintptr_t _attribute;
} _l_sigev_thread;
} _l_sigev_un;
}
#if defined(__amd64__) && defined(COMPAT_LINUX32)
__packed
#endif
;
struct l_itimerspec {
struct l_timespec it_interval;
struct l_timespec it_value;
};
int native_to_linux_timespec(struct l_timespec *,
struct timespec *);
int linux_to_native_timespec(struct timespec *,
struct l_timespec *);
int linux_to_native_clockid(clockid_t *, clockid_t);
int native_to_linux_itimerspec(struct l_itimerspec *,
struct itimerspec *);
int linux_to_native_itimerspec(struct itimerspec *,
struct l_itimerspec *);
int linux_to_native_timerflags(int *, int);
#endif /* _LINUX_TIMER_H */