1 | /* $NetBSD: rf_general.h,v 1.21 2014/03/25 16:19:14 christos 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 | |
51 | void rf_print_panic_message(int, const char *); |
52 | void rf_print_assert_panic_message(int, const char *, const char *); |
53 | void rf_print_unable_to_init_mutex(const char *, int, int); |
54 | void rf_print_unable_to_add_shutdown(const char *, int, int); |
55 | |
56 | |
57 | extern char rf_panicbuf[]; |
58 | #define RF_PANIC() {rf_print_panic_message(__LINE__,__FILE__); panic("%s", rf_panicbuf);} |
59 | |
60 | #if defined(RAID_DIAGNOSTIC) || defined(__COVERITY__) |
61 | #define RF_ASSERT(_x_) { \ |
62 | if (!(_x_)) { \ |
63 | rf_print_assert_panic_message(__LINE__, __FILE__, #_x_); \ |
64 | panic(rf_panicbuf); \ |
65 | } \ |
66 | } |
67 | #else /* RAID_DIAGNOSTIC */ |
68 | #define RF_ASSERT(x) { /*noop*/ (void)(x); } |
69 | #endif /* RAID_DIAGNOSTIC */ |
70 | |
71 | /* random stuff */ |
72 | #define RF_MAX(a,b) (((a) > (b)) ? (a) : (b)) |
73 | #define RF_MIN(a,b) (((a) < (b)) ? (a) : (b)) |
74 | |
75 | /* divide-by-zero check */ |
76 | #define RF_DB0_CHECK(a,b) ( ((b)==0) ? 0 : (a)/(b) ) |
77 | |
78 | /* get time of day */ |
79 | #define RF_GETTIME(_t) microtime(&(_t)) |
80 | |
81 | #define RF_UL(x) ((unsigned long) (x)) |
82 | #define RF_PGMASK PAGE_MASK |
83 | #define RF_BLIP(x) (PAGE_SIZE - (RF_UL(x) & RF_PGMASK)) /* bytes left in page */ |
84 | #define RF_PAGE_ALIGNED(x) ((RF_UL(x) & RF_PGMASK) == 0) |
85 | |
86 | #ifdef __STDC__ |
87 | #define RF_STRING(_str_) #_str_ |
88 | #else /* __STDC__ */ |
89 | #define RF_STRING(_str_) "_str_" |
90 | #endif /* __STDC__ */ |
91 | |
92 | #endif /* !_RF__RF_GENERAL_H_ */ |
93 | |