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rf_general.h revision 1.5 
      1 /*	$NetBSD: rf_general.h,v 1.5 2000/03/03 02:04:48 oster 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 (at) 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 /* error reporting and handling */
     39 
     40 #ifdef _KERNEL
     41 #include<sys/systm.h>		/* printf, sprintf, and friends */
     42 #endif
     43 
     44 #define RF_ERRORMSG(s)            printf((s))
     45 #define RF_ERRORMSG1(s,a)         printf((s),(a))
     46 #define RF_ERRORMSG2(s,a,b)       printf((s),(a),(b))
     47 #define RF_ERRORMSG3(s,a,b,c)     printf((s),(a),(b),(c))
     48 
     49 extern char rf_panicbuf[];
     50 #define RF_PANIC() {sprintf(rf_panicbuf,"raidframe error at line %d file %s",__LINE__,__FILE__); panic(rf_panicbuf);}
     51 
     52 #ifdef _KERNEL
     53 #ifdef RF_ASSERT
     54 #undef RF_ASSERT
     55 #endif				/* RF_ASSERT */
     56 #ifndef NOASSERT
     57 #define RF_ASSERT(_x_) { \
     58   if (!(_x_)) { \
     59     sprintf(rf_panicbuf, \
     60         "raidframe error at line %d file %s (failed asserting %s)\n", \
     61         __LINE__, __FILE__, #_x_); \
     62     panic(rf_panicbuf); \
     63   } \
     64 }
     65 #else				/* !NOASSERT */
     66 #define RF_ASSERT(x) {/*noop*/}
     67 #endif				/* !NOASSERT */
     68 #else				/* _KERNEL */
     69 #define RF_ASSERT(x) {/*noop*/}
     70 #endif				/* _KERNEL */
     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 /*
     83  * zero memory- not all bzero calls go through here, only
     84  * those which in the kernel may have a user address
     85  */
     86 
     87 #define RF_BZERO(_bp,_b,_l)  bzero(_b,_l)	/* XXX This is likely
     88 						 * incorrect. GO */
     89 
     90 
     91 #define RF_UL(x)           ((unsigned long) (x))
     92 #define RF_PGMASK          RF_UL(NBPG-1)
     93 #define RF_BLIP(x)         (NBPG - (RF_UL(x) & RF_PGMASK))	/* bytes left in page */
     94 #define RF_PAGE_ALIGNED(x) ((RF_UL(x) & RF_PGMASK) == 0)
     95 
     96 #ifdef __STDC__
     97 #define RF_STRING(_str_) #_str_
     98 #else				/* __STDC__ */
     99 #define RF_STRING(_str_) "_str_"
    100 #endif				/* __STDC__ */
    101 
    102 #endif				/* !_RF__RF_GENERAL_H_ */
    103