NetBSD/lib/librumpuser/rumpuser_component.c

109 lines
2.8 KiB
C

/* $NetBSD: rumpuser_component.c,v 1.6 2013/05/07 15:18:35 pooka Exp $ */
/*
* Copyright (c) 2013 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 "rumpuser_port.h"
#if !defined(lint)
__RCSID("$NetBSD: rumpuser_component.c,v 1.6 2013/05/07 15:18:35 pooka Exp $");
#endif /* !lint */
#include <stdint.h>
/*
* These interfaces affect the shlib major/minor; they can be called from
* any program when applicable. The rest of the interfaces provided
* by rumpuser are part of the rump kernel/hypervisor contract and
* are versioned by RUMPUSER_VERSION.
*/
#include <rump/rumpuser_component.h>
#include "rumpuser_int.h"
void *
rumpuser_component_unschedule(void)
{
int nlocks;
rumpkern_unsched(&nlocks, NULL);
return (void *)(intptr_t)nlocks;
}
void
rumpuser_component_schedule(void *cookie)
{
int nlocks = (int)(intptr_t)cookie;
rumpkern_sched(nlocks, NULL);
}
void
rumpuser_component_kthread(void)
{
rumpuser__hyp.hyp_schedule();
rumpuser__hyp.hyp_lwproc_newlwp(0);
rumpuser__hyp.hyp_unschedule();
}
struct lwp *
rumpuser_component_curlwp(void)
{
struct lwp *l;
rumpuser__hyp.hyp_schedule();
l = rumpuser__hyp.hyp_lwproc_curlwp();
rumpuser__hyp.hyp_unschedule();
return l;
}
void
rumpuser_component_switchlwp(struct lwp *l)
{
rumpuser__hyp.hyp_schedule();
rumpuser__hyp.hyp_lwproc_switch(l);
rumpuser__hyp.hyp_unschedule();
}
void
rumpuser_component_kthread_release(void)
{
rumpuser__hyp.hyp_schedule();
rumpuser__hyp.hyp_lwproc_release();
rumpuser__hyp.hyp_unschedule();
}
int
rumpuser_component_errtrans(int hosterr)
{
return rumpuser__errtrans(hosterr);
}