1 /* $OpenBSD: rf_general.h,v 1.6 2003/04/27 11:22:54 ho Exp $ */ 2 /* $NetBSD: rf_general.h,v 1.5 2000/03/03 02:04:48 oster Exp $ */ 3 4 /* 5 * Copyright (c) 1995 Carnegie-Mellon University. 6 * All rights reserved. 7 * 8 * Author: Mark Holland 9 * 10 * Permission to use, copy, modify and distribute this software and 11 * its documentation is hereby granted, provided that both the copyright 12 * notice and this permission notice appear in all copies of the 13 * software, derivative works or modified versions, and any portions 14 * thereof, and that both notices appear in supporting documentation. 15 * 16 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 17 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 18 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 19 * 20 * Carnegie Mellon requests users of this software to return to 21 * 22 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 23 * School of Computer Science 24 * Carnegie Mellon University 25 * Pittsburgh PA 15213-3890 26 * 27 * any improvements or extensions that they make and grant Carnegie the 28 * rights to redistribute these changes. 29 */ 30 31 /* 32 * rf_general.h -- Some general-use definitions. 33 */ 34 35 /*#define NOASSERT*/ 36 37 #ifndef _RF__RF_GENERAL_H_ 38 #define _RF__RF_GENERAL_H_ 39 40 /* Error reporting and handling. */ 41 42 #ifdef _KERNEL 43 #include <sys/systm.h> /* printf, snprintf, and friends. */ 44 #endif 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 extern char rf_panicbuf[2048]; 52 #define RF_PANIC() \ 53 do { \ 54 snprintf(rf_panicbuf, sizeof rf_panicbuf, \ 55 "RAIDframe error at line %d file %s", \ 56 __LINE__, __FILE__); \ 57 panic(rf_panicbuf); \ 58 } while (0) 59 60 #ifdef _KERNEL 61 #ifdef RF_ASSERT 62 #undef RF_ASSERT 63 #endif /* RF_ASSERT */ 64 #ifndef NOASSERT 65 #define RF_ASSERT(_x_) \ 66 do { \ 67 if (!(_x_)) { \ 68 snprintf(rf_panicbuf, sizeof rf_panicbuf, \ 69 "RAIDframe error at line %d" \ 70 " file %s (failed asserting %s)\n", __LINE__, \ 71 __FILE__, #_x_); \ 72 panic(rf_panicbuf); \ 73 } \ 74 } while (0) 75 #else /* !NOASSERT */ 76 #define RF_ASSERT(x) {/*noop*/} 77 #endif /* !NOASSERT */ 78 #else /* _KERNEL */ 79 #define RF_ASSERT(x) {/*noop*/} 80 #endif /* _KERNEL */ 81 82 /* Random stuff. */ 83 #define RF_MAX(a,b) (((a) > (b)) ? (a) : (b)) 84 #define RF_MIN(a,b) (((a) < (b)) ? (a) : (b)) 85 86 /* Divide-by-zero check. */ 87 #define RF_DB0_CHECK(a,b) (((b)==0) ? 0 : (a)/(b)) 88 89 /* Get time of day. */ 90 #define RF_GETTIME(_t) microtime(&(_t)) 91 92 /* 93 * Zero memory - Not all bzero calls go through here, only 94 * those which in the kernel may have a user address. 95 */ 96 97 #define RF_BZERO(_bp,_b,_l) bzero(_b, _l) /* 98 * XXX This is likely 99 * incorrect. GO 100 */ 101 102 #define RF_UL(x) ((unsigned long)(x)) 103 #define RF_PGMASK RF_UL(NBPG-1) 104 #define RF_BLIP(x) (NBPG - (RF_UL(x) & RF_PGMASK)) /* 105 * Bytes left 106 * in page. 107 */ 108 #define RF_PAGE_ALIGNED(x) ((RF_UL(x) & RF_PGMASK) == 0) 109 110 #ifdef __STDC__ 111 #define RF_STRING(_str_) #_str_ 112 #else /* __STDC__ */ 113 #define RF_STRING(_str_) "_str_" 114 #endif /* __STDC__ */ 115 116 #endif /* !_RF__RF_GENERAL_H_ */ 117