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bmon

    1: /*
    2:  * in_null.c               Null Input Method
    3:  *
    4:  * Copyright (c) 2001-2005 Thomas Graf <tgraf@suug.ch>
    5:  *
    6:  * Permission is hereby granted, free of charge, to any person obtaining a
    7:  * copy of this software and associated documentation files (the "Software"),
    8:  * to deal in the Software without restriction, including without limitation
    9:  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   10:  * and/or sell copies of the Software, and to permit persons to whom the
   11:  * Software is furnished to do so, subject to the following conditions:
   12:  *
   13:  * The above copyright notice and this permission notice shall be included
   14:  * in all copies or substantial portions of the Software.
   15:  *
   16:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   17:  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   18:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
   19:  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   20:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   21:  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   22:  * DEALINGS IN THE SOFTWARE.
   23:  */
   24: 
   25: #include <bmon/bmon.h>
   26: #include <bmon/input.h>
   27: #include <bmon/utils.h>
   28: 
   29: static void null_read(void)
   30: {
   31: }
   32: 
   33: static void print_help(void)
   34: {
   35: 	printf(
   36: 	"null - Do not collect statistics at all\n" \
   37: 	"\n" \
   38: 	"  Will not collect any statistics at all, may be used to disable \n" \
   39: 	"  local statistics collection.\n" \
   40: 	"  Author: Thomas Graf <tgraf@suug.ch>\n");
   41: }
   42: 
   43: static void null_set_opts(tv_t *attrs)
   44: {
   45: 	while (attrs) {
   46: 		if (!strcasecmp(attrs->type, "help")) {
   47: 			print_help();
   48: 			exit(0);
   49: 		}
   50: 		attrs = attrs->next;
   51: 	}
   52: }
   53: 
   54: static int null_probe(void)
   55: {
   56: 	return 1;
   57: }
   58: 
   59: static struct input_module null_ops = {
   60: 	.im_name = "null",
   61: 	.im_read = null_read,
   62: 	.im_set_opts = null_set_opts,
   63: 	.im_probe = null_probe,
   64: 	.im_no_default = 1,
   65: };
   66: 
   67: static void __init null_init(void)
   68: {
   69: 	register_input_module(&null_ops);
   70: }