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/*-
* Copyright (c) 2015 Nuxi, https://nuxi.nl/
*
* 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 _CLOUDABI_UTIL_H_
#define _CLOUDABI_UTIL_H_
#include <sys/socket.h>
#include <compat/cloudabi/cloudabi_syscalldefs.h>
struct file;
struct thread;
struct timespec;
/* Fetches the time value of a clock. */
int cloudabi_clock_time_get(struct thread *, cloudabi_clockid_t,
cloudabi_timestamp_t *);
/* Converts a FreeBSD errno to a CloudABI errno. */
cloudabi_errno_t cloudabi_convert_errno(int);
/* Converts FreeBSD's struct sockaddr to CloudABI's cloudabi_sockaddr_t. */
void cloudabi_convert_sockaddr(const struct sockaddr *, socklen_t,
cloudabi_sockaddr_t *);
/* Converts a file descriptor to a CloudABI file descriptor type. */
cloudabi_filetype_t cloudabi_convert_filetype(const struct file *);
/* Converts CloudABI rights to a set of Capsicum capabilities. */
int cloudabi_convert_rights(cloudabi_rights_t, cap_rights_t *);
/* Removes rights that conflict with the file descriptor type. */
void cloudabi_remove_conflicting_rights(cloudabi_filetype_t,
cloudabi_rights_t *, cloudabi_rights_t *);
/* Converts a struct timespec to a CloudABI timestamp. */
int cloudabi_convert_timespec(const struct timespec *, cloudabi_timestamp_t *);
/*
* Blocking futex functions.
*
* These functions are called by CloudABI's polling system calls to
* sleep on a lock or condition variable.
*/
int cloudabi_futex_condvar_wait(struct thread *, cloudabi_condvar_t *,
cloudabi_mflags_t, cloudabi_lock_t *, cloudabi_mflags_t, cloudabi_clockid_t,
cloudabi_timestamp_t, cloudabi_timestamp_t);
int cloudabi_futex_lock_rdlock(struct thread *, cloudabi_lock_t *,
cloudabi_mflags_t, cloudabi_clockid_t, cloudabi_timestamp_t,
cloudabi_timestamp_t);
int cloudabi_futex_lock_wrlock(struct thread *, cloudabi_lock_t *,
cloudabi_mflags_t, cloudabi_clockid_t, cloudabi_timestamp_t,
cloudabi_timestamp_t);
#endif
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