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 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 #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