| 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 | |