NetBSD/lib/libpuffs/suspend.c

63 lines
2.0 KiB
C

/* $NetBSD: suspend.c,v 1.9 2007/11/17 17:12:11 pooka Exp $ */
/*
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
*
* 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 ``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.
*/
#include <sys/cdefs.h>
#if !defined(lint)
__RCSID("$NetBSD: suspend.c,v 1.9 2007/11/17 17:12:11 pooka Exp $");
#endif /* !lint */
/*
* File system suspension
*/
#include <sys/types.h>
#include <assert.h>
#include <errno.h>
#include <puffs.h>
#include <stdio.h>
#include <unistd.h>
#include "puffs_priv.h"
/*ARGSUSED*/
int
puffs_fs_suspend(struct puffs_usermount *pu)
{
struct puffs_req preq;
size_t n;
preq.preq_pth.pth_framelen = sizeof(struct puffs_req);
preq.preq_opclass = PUFFSOP_SUSPEND;
n = write(pu->pu_fd, &preq, sizeof(preq));
/* XXX */
assert(n == sizeof(preq));
return 0;
}