1/*	$NetBSD: rf_general.h,v 1.22 2016/12/10 23:03:27 maya Exp $	*/
2/*
3 * Copyright (c) 1995 Carnegie-Mellon University.
4 * All rights reserved.
5 *
6 * Author: Mark Holland
7 *
8 * Permission to use, copy, modify and distribute this software and
9 * its documentation is hereby granted, provided that both the copyright
10 * notice and this permission notice appear in all copies of the
11 * software, derivative works or modified versions, and any portions
12 * thereof, and that both notices appear in supporting documentation.
13 *
14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
15 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
17 *
18 * Carnegie Mellon requests users of this software to return to
19 *
20 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
21 *  School of Computer Science
22 *  Carnegie Mellon University
23 *  Pittsburgh PA 15213-3890
24 *
25 * any improvements or extensions that they make and grant Carnegie the
26 * rights to redistribute these changes.
27 */
28
29/*
30 * rf_general.h -- some general-use definitions
31 */
32
33/* #define NOASSERT */
34
35#ifndef _RF__RF_GENERAL_H_
36#define _RF__RF_GENERAL_H_
37
38#ifdef _KERNEL_OPT
39#include "opt_raid_diagnostic.h"
40#endif /* _KERNEL_OPT */
41
42/* error reporting and handling */
43
44#include <sys/systm.h>		/* printf, snprintf, and friends */
45
46#define RF_ERRORMSG(s)            printf((s))
47#define RF_ERRORMSG1(s,a)         printf((s),(a))
48#define RF_ERRORMSG2(s,a,b)       printf((s),(a),(b))
49#define RF_ERRORMSG3(s,a,b,c)     printf((s),(a),(b),(c))
50
51void rf_print_panic_message(int, const char *);
52void rf_print_assert_panic_message(int, const char *, const char *);
53void rf_print_unable_to_init_mutex(const char *, int, int);
54void rf_print_unable_to_add_shutdown(const char *, int, int);
55
56
57#define RF_PANIC() {rf_print_panic_message(__LINE__,__FILE__);}
58
59#if defined(RAID_DIAGNOSTIC) || defined(__COVERITY__)
60#define RF_ASSERT(_x_) { \
61  if (!(_x_)) { \
62    rf_print_assert_panic_message(__LINE__, __FILE__, #_x_); \
63  } \
64}
65#else /* RAID_DIAGNOSTIC */
66#define RF_ASSERT(x) { /*noop*/ (void)(x); }
67#endif /* RAID_DIAGNOSTIC */
68
69/* random stuff */
70#define RF_MAX(a,b) (((a) > (b)) ? (a) : (b))
71#define RF_MIN(a,b) (((a) < (b)) ? (a) : (b))
72
73/* divide-by-zero check */
74#define RF_DB0_CHECK(a,b) ( ((b)==0) ? 0 : (a)/(b) )
75
76/* get time of day */
77#define RF_GETTIME(_t) microtime(&(_t))
78
79#define RF_UL(x)           ((unsigned long) (x))
80#define RF_PGMASK          PAGE_MASK
81#define RF_BLIP(x)         (PAGE_SIZE - (RF_UL(x) & RF_PGMASK))	/* bytes left in page */
82#define RF_PAGE_ALIGNED(x) ((RF_UL(x) & RF_PGMASK) == 0)
83
84#ifdef __STDC__
85#define RF_STRING(_str_) #_str_
86#else				/* __STDC__ */
87#define RF_STRING(_str_) "_str_"
88#endif				/* __STDC__ */
89
90#endif				/* !_RF__RF_GENERAL_H_ */
91