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/* $NetBSD: async.h,v 1.5 2021/12/19 11:39:38 riastradh Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Taylor R. Campbell.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _LINUX_ASYNC_H_
#define _LINUX_ASYNC_H_
typedef unsigned long async_cookie_t;
/*
* async_schedule(fn, arg)
*
* Schedule the kernel to run fn(arg, cookie) at some point to
* avoid slowing down boot, or call it synchronously if memory is
* short. Returns a cookie that can be used to wait for the
* function to have been called.
*/
static inline async_cookie_t
async_schedule(void (*fn)(void *, async_cookie_t), void *arg)
{
(*fn)(arg, 1);
return 1;
}
/*
* async_synchronize_full()
*
* Wait for all outstanding asynchronous actions to have completed
* before returning.
*/
static inline void
async_synchronize_full(void)
{
}
/*
* async_synchronize_cookie(cookie)
*
* Wait until the function passed to the async_schedule call that
* returned cookie has completed.
*/
static inline void
async_synchronize_cookie(unsigned long cookie)
{
}
#endif /* _LINUX_ASYNC_H_ */
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