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/* $OpenBSD: rf_utils.c,v 1.1 1999/01/11 14:29:54 niklas Exp $ */
/* $NetBSD: rf_utils.c,v 1.1 1998/11/13 04:20:35 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Mark Holland
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/****************************************
*
* rf_utils.c -- various support routines
*
****************************************/
/* :
* Log: rf_utils.c,v
* Revision 1.20 1996/07/27 23:36:08 jimz
* Solaris port of simulator
*
* Revision 1.19 1996/07/22 19:52:16 jimz
* switched node params to RF_DagParam_t, a union of
* a 64-bit int and a void *, for better portability
* attempted hpux port, but failed partway through for
* lack of a single C compiler capable of compiling all
* source files
*
* Revision 1.18 1996/07/15 17:22:18 jimz
* nit-pick code cleanup
* resolve stdlib problems on DEC OSF
*
* Revision 1.17 1996/06/09 02:36:46 jimz
* lots of little crufty cleanup- fixup whitespace
* issues, comment #ifdefs, improve typing in some
* places (esp size-related)
*
* Revision 1.16 1996/06/07 21:33:04 jimz
* begin using consistent types for sector numbers,
* stripe numbers, row+col numbers, recon unit numbers
*
* Revision 1.15 1996/06/03 23:28:26 jimz
* more bugfixes
* check in tree to sync for IPDS runs with current bugfixes
* there still may be a problem with threads in the script test
* getting I/Os stuck- not trivially reproducible (runs ~50 times
* in a row without getting stuck)
*
* Revision 1.14 1996/06/02 17:31:48 jimz
* Moved a lot of global stuff into array structure, where it belongs.
* Fixed up paritylogging, pss modules in this manner. Some general
* code cleanup. Removed lots of dead code, some dead files.
*
* Revision 1.13 1996/05/27 18:56:37 jimz
* more code cleanup
* better typing
* compiles in all 3 environments
*
* Revision 1.12 1996/05/23 21:46:35 jimz
* checkpoint in code cleanup (release prep)
* lots of types, function names have been fixed
*
* Revision 1.11 1996/05/18 19:51:34 jimz
* major code cleanup- fix syntax, make some types consistent,
* add prototypes, clean out dead code, et cetera
*
* Revision 1.10 1995/12/06 15:17:44 root
* added copyright info
*
*/
#include "rf_threadstuff.h"
#ifdef _KERNEL
#define KERNEL
#endif
#ifndef KERNEL
#include <stdio.h>
#endif /* !KERNEL */
#include <sys/time.h>
#include "rf_threadid.h"
#include "rf_utils.h"
#include "rf_debugMem.h"
#include "rf_alloclist.h"
#include "rf_general.h"
#include "rf_sys.h"
#ifndef KERNEL
#include "rf_randmacros.h"
#endif /* !KERNEL */
/* creates & zeros 2-d array with b rows and k columns (MCH) */
RF_RowCol_t **rf_make_2d_array(b, k, allocList)
int b;
int k;
RF_AllocListElem_t *allocList;
{
RF_RowCol_t **retval, i;
RF_MallocAndAdd(retval, b * sizeof(RF_RowCol_t *), (RF_RowCol_t **), allocList);
for (i=0; i<b; i++) {
RF_MallocAndAdd(retval[i], k * sizeof(RF_RowCol_t), (RF_RowCol_t *), allocList);
(void) bzero((char *) retval[i], k*sizeof(RF_RowCol_t));
}
return(retval);
}
void rf_free_2d_array(a, b, k)
RF_RowCol_t **a;
int b;
int k;
{
RF_RowCol_t i;
for (i=0; i<b; i++)
RF_Free(a[i], k*sizeof(RF_RowCol_t));
RF_Free(a, b*sizeof(RF_RowCol_t));
}
/* creates & zeros a 1-d array with c columns */
RF_RowCol_t *rf_make_1d_array(c, allocList)
int c;
RF_AllocListElem_t *allocList;
{
RF_RowCol_t *retval;
RF_MallocAndAdd(retval, c * sizeof(RF_RowCol_t), (RF_RowCol_t *), allocList);
(void) bzero((char *) retval, c*sizeof(RF_RowCol_t));
return(retval);
}
void rf_free_1d_array(a, n)
RF_RowCol_t *a;
int n;
{
RF_Free(a, n * sizeof(RF_RowCol_t));
}
/* Euclid's algorithm: finds and returns the greatest common divisor
* between a and b. (MCH)
*/
int rf_gcd(m, n)
int m;
int n;
{
int t;
while (m>0) {
t = n % m;
n = m;
m = t;
}
return(n);
}
#if !defined(KERNEL) && !defined(SIMULATE) && defined(__osf__)
/* this is used to generate a random number when _FASTRANDOM is off
* in randmacros.h
*/
long rf_do_random(rval, rdata)
long *rval;
struct random_data *rdata;
{
int a, b;
long c;
/*
* random_r() generates random 32-bit values. OR them together.
*/
if (random_r(&a, rdata)!=0) {
fprintf(stderr,"Yikes! call to random_r failed\n");
exit(1);
}
if (random_r(&b, rdata)!=0) {
fprintf(stderr,"Yikes! call to random_r failed\n");
exit(1);
}
c = ((long)a)<<32;
*rval = c|b;
return(*rval);
}
#endif /* !KERNEL && !SIMULATE && __osf__ */
/* these convert between text and integer. Apparently the regular C macros
* for doing this are not available in the kernel
*/
#define ISDIGIT(x) ( (x) >= '0' && (x) <= '9' )
#define ISHEXCHAR(x) ( ((x) >= 'a' && (x) <= 'f') || ((x) >= 'A' && (x) <= 'F') )
#define ISHEX(x) ( ISDIGIT(x) || ISHEXCHAR(x) )
#define HC2INT(x) ( ((x) >= 'a' && (x) <= 'f') ? (x) - 'a' + 10 : \
( ((x) >= 'A' && (x) <= 'F') ? (x) - 'A' + 10 : (x - '0') ) )
int rf_atoi(p)
char *p;
{
int val = 0, negate = 0;
if (*p == '-') {negate=1; p++;}
for ( ; ISDIGIT(*p); p++) val = 10 * val + (*p - '0');
return((negate) ? -val : val);
}
int rf_htoi(p)
char *p;
{
int val = 0;
for ( ; ISHEXCHAR(*p); p++) val = 16 * val + HC2INT(*p);
return(val);
}
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