/*-
 * Copyright (c) 1999 Assar Westerlund
 * 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 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: src/share/examples/kld/syscall/module/syscall.c,v 1.2 1999/08/28 00:19:23 peter Exp $
 */

/*
 * adapted for kobj example
 */

#include <sys/types.h>
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/module.h>
#include <sys/malloc.h>
#include <sys/sysent.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/kobj.h>

#include "hello_if.h"

static void
my_hello_world(kobj_t o)
{

	printf("hello world!\n");
}

static void
my_hello_static_world(kobj_t o)
{

	printf("hello static world!\n");
}

static kobj_method_t hello_methods[] = {
	KOBJMETHOD(hello_world,		my_hello_world),
	KOBJMETHOD(hello_static_world,	my_hello_static_world),

	{ 0, 0 }
};

static kobj_method_t null_methods[] = {
	{ 0, 0 }
};

static DEFINE_CLASS(hello, hello_methods, sizeof(struct kobj));
static DEFINE_CLASS(null, null_methods, sizeof(struct kobj));

static int
hello(struct proc *p, void *unused)
{
	kobj_t o;

	kobj_class_compile(&hello_class);
	HELLO_STATIC_WORLD(&hello_class);

	o = kobj_create(&null_class, M_TEMP, M_WAITOK);
	HELLO_WORLD(o);

	kobj_class_free(&null_class);
	kobj_init(o, &hello_class);
	HELLO_WORLD(o);

	kobj_delete(o, M_TEMP);

	return 0;
}

static struct sysent hello_sysent = {
	0,			/* sy_narg */
	hello			/* sy_call */
};

static int offset = NO_SYSCALL;

static int
load (struct module *module, int cmd, void *arg)
{
	int error = 0;

	switch (cmd) {
	case MOD_LOAD :
		printf ("syscall loaded at %d\n", offset);
		break;
	case MOD_UNLOAD :
		printf ("syscall unloaded from %d\n", offset);
		break;
	default :
		error = EINVAL;
		break;
	}
	return error;
}

SYSCALL_MODULE(syscall, &offset, &hello_sysent, load, NULL);