1 /* $NetBSD: rf_hist.h,v 1.4 2001/10/04 15:58:53 oster Exp $ */ 2 /* 3 * rf_hist.h 4 * 5 * Histgram operations for RAIDframe stats 6 */ 7 /* 8 * Copyright (c) 1995 Carnegie-Mellon University. 9 * All rights reserved. 10 * 11 * Author: Jim Zelenka 12 * 13 * Permission to use, copy, modify and distribute this software and 14 * its documentation is hereby granted, provided that both the copyright 15 * notice and this permission notice appear in all copies of the 16 * software, derivative works or modified versions, and any portions 17 * thereof, and that both notices appear in supporting documentation. 18 * 19 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 20 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 21 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 22 * 23 * Carnegie Mellon requests users of this software to return to 24 * 25 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 26 * School of Computer Science 27 * Carnegie Mellon University 28 * Pittsburgh PA 15213-3890 29 * 30 * any improvements or extensions that they make and grant Carnegie the 31 * rights to redistribute these changes. 32 */ 33 34 #ifndef _RF__RF_HIST_H_ 35 #define _RF__RF_HIST_H_ 36 37 #include <dev/raidframe/raidframevar.h> 38 39 #define RF_HIST_RESOLUTION 5 40 #define RF_HIST_MIN_VAL 0 41 #define RF_HIST_MAX_VAL 1000 42 #define RF_HIST_RANGE (RF_HIST_MAX_VAL - RF_HIST_MIN_VAL) 43 #define RF_HIST_NUM_BUCKETS (RF_HIST_RANGE / RF_HIST_RESOLUTION + 1) 44 45 typedef RF_uint32 RF_Hist_t; 46 47 #define RF_HIST_ADD(_hist_,_val_) { \ 48 RF_Hist_t val; \ 49 val = ((RF_Hist_t)(_val_)) / 1000; \ 50 if (val >= RF_HIST_MAX_VAL) \ 51 _hist_[RF_HIST_NUM_BUCKETS-1]++; \ 52 else \ 53 _hist_[(val - RF_HIST_MIN_VAL) / RF_HIST_RESOLUTION]++; \ 54 } 55 56 #endif /* !_RF__RF_HIST_H_ */ 57