1 /* $NetBSD: rf_general.h,v 1.17 2006/04/14 22:40:09 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, sprintf, and friends */ 45 #include <uvm/uvm_extern.h> /* PAGE_SIZE, PAGE_MASK */ 46 47 #define RF_ERRORMSG(s) printf((s)) 48 #define RF_ERRORMSG1(s,a) printf((s),(a)) 49 #define RF_ERRORMSG2(s,a,b) printf((s),(a),(b)) 50 #define RF_ERRORMSG3(s,a,b,c) printf((s),(a),(b),(c)) 51 52 void rf_print_panic_message(int, const char *); 53 void rf_print_assert_panic_message(int, const char *, const char *); 54 void rf_print_unable_to_init_mutex(const char *, int, int); 55 void rf_print_unable_to_add_shutdown(const char *, int, int); 56 57 58 extern char rf_panicbuf[]; 59 #define RF_PANIC() {rf_print_panic_message(__LINE__,__FILE__); panic(rf_panicbuf);} 60 61 #if defined(RAID_DIAGNOSTIC) || defined(__COVERITY__) 62 #define RF_ASSERT(_x_) { \ 63 if (!(_x_)) { \ 64 rf_print_assert_panic_message(__LINE__, __FILE__, #_x_); \ 65 panic(rf_panicbuf); \ 66 } \ 67 } 68 #else /* RAID_DIAGNOSTIC */ 69 #define RF_ASSERT(x) {/*noop*/} 70 #endif /* RAID_DIAGNOSTIC */ 71 72 /* random stuff */ 73 #define RF_MAX(a,b) (((a) > (b)) ? (a) : (b)) 74 #define RF_MIN(a,b) (((a) < (b)) ? (a) : (b)) 75 76 /* divide-by-zero check */ 77 #define RF_DB0_CHECK(a,b) ( ((b)==0) ? 0 : (a)/(b) ) 78 79 /* get time of day */ 80 #define RF_GETTIME(_t) microtime(&(_t)) 81 82 #define RF_UL(x) ((unsigned long) (x)) 83 #define RF_PGMASK PAGE_MASK 84 #define RF_BLIP(x) (PAGE_SIZE - (RF_UL(x) & RF_PGMASK)) /* bytes left in page */ 85 #define RF_PAGE_ALIGNED(x) ((RF_UL(x) & RF_PGMASK) == 0) 86 87 #ifdef __STDC__ 88 #define RF_STRING(_str_) #_str_ 89 #else /* __STDC__ */ 90 #define RF_STRING(_str_) "_str_" 91 #endif /* __STDC__ */ 92 93 #endif /* !_RF__RF_GENERAL_H_ */ 94