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Soon to be replaced with a more comprehensive set of examples.

This commit is contained in:
pgoyette 2015-05-13 07:02:16 +00:00
parent 65b0d3bfdb
commit b175b21535
2 changed files with 0 additions and 99 deletions
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6
sys/modules/example/Makefile
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# $NetBSD: Makefile,v 1.3 2008/05/02 14:20:50 ad Exp $
KMOD= example
SRCS= example.c
.include <bsd.kmodule.mk>

93
sys/modules/example/example.c
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/* $NetBSD: example.c,v 1.7 2010/10/25 22:41:42 jnemeth Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* 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 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: example.c,v 1.7 2010/10/25 22:41:42 jnemeth Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
/*
* Last parameter of MODULE macro is a list of names (as string; names are
* separated by commas) of dependencies. If module has no dependencies,
* then NULL should be passed.
*/
MODULE(MODULE_CLASS_MISC, example, NULL);
static
void
handle_props(prop_dictionary_t props)
{
const char *msg;
prop_string_t str;
if (props != NULL) {
str = prop_dictionary_get(props, "msg");
} else {
printf("No property dictionary was provided.\n");
str = NULL;
}
if (str == NULL)
printf("The 'msg' property was not given.\n");
else if (prop_object_type(str) != PROP_TYPE_STRING)
printf("The 'msg' property is not a string.\n");
else {
msg = prop_string_cstring_nocopy(str);
if (msg == NULL)
printf("Failed to process the 'msg' property.\n");
else
printf("The 'msg' property is: %s\n", msg);
}
}
static int
example_modcmd(modcmd_t cmd, void *arg)
{
switch (cmd) {
case MODULE_CMD_INIT:
printf("Example module loaded.\n");
handle_props(arg);
break;
case MODULE_CMD_FINI:
printf("Example module unloaded.\n");
break;
case MODULE_CMD_STAT:
printf("Example module status queried.\n");
return ENOTTY;
default:
return ENOTTY;
}
return 0;
}