cloudabi_util.h revision 285930 
1/*-
2 * Copyright (c) 2015 Nuxi, https://nuxi.nl/
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 *
25 * $FreeBSD: head/sys/compat/cloudabi/cloudabi_util.h 285930 2015-07-28 06:36:49Z ed $
26 */
27
28#ifndef _CLOUDABI_UTIL_H_
29#define	_CLOUDABI_UTIL_H_
30
31#include <compat/cloudabi/cloudabi_syscalldefs.h>
32
33struct file;
34struct thread;
35struct timespec;
36
37/* Fetches the time value of a clock. */
38int cloudabi_clock_time_get(struct thread *, cloudabi_clockid_t,
39    cloudabi_timestamp_t *);
40
41/* Converts a FreeBSD errno to a CloudABI errno. */
42cloudabi_errno_t cloudabi_convert_errno(int);
43
44/* Converts a file descriptor to a CloudABI file descriptor type. */
45cloudabi_filetype_t cloudabi_convert_filetype(const struct file *);
46
47/* Converts a struct timespec to a CloudABI timestamp. */
48int cloudabi_convert_timespec(const struct timespec *, cloudabi_timestamp_t *);
49
50/*
51 * Blocking futex functions.
52 *
53 * These functions are called by CloudABI's polling system calls to
54 * sleep on a lock or condition variable.
55 */
56int cloudabi_futex_condvar_wait(struct thread *, cloudabi_condvar_t *,
57    cloudabi_mflags_t, cloudabi_lock_t *, cloudabi_mflags_t, cloudabi_clockid_t,
58    cloudabi_timestamp_t, cloudabi_timestamp_t);
59int cloudabi_futex_lock_rdlock(struct thread *, cloudabi_lock_t *,
60    cloudabi_mflags_t, cloudabi_clockid_t, cloudabi_timestamp_t,
61    cloudabi_timestamp_t);
62int cloudabi_futex_lock_wrlock(struct thread *, cloudabi_lock_t *,
63    cloudabi_mflags_t, cloudabi_clockid_t, cloudabi_timestamp_t,
64    cloudabi_timestamp_t);
65
66#endif
67