58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* $FreeBSD$ */
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/* $NetBSD: rf_hist.h,v 1.3 1999/02/05 00:06:12 oster Exp $ */
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/*
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* rf_hist.h
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*
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* Histgram operations for RAIDframe stats
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*/
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Jim Zelenka
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#ifndef _RF__RF_HIST_H_
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#define _RF__RF_HIST_H_
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#include <dev/raidframe/rf_types.h>
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#define RF_HIST_RESOLUTION 5
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#define RF_HIST_MIN_VAL 0
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#define RF_HIST_MAX_VAL 1000
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#define RF_HIST_RANGE (RF_HIST_MAX_VAL - RF_HIST_MIN_VAL)
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#define RF_HIST_NUM_BUCKETS (RF_HIST_RANGE / RF_HIST_RESOLUTION + 1)
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typedef RF_uint32 RF_Hist_t;
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#define RF_HIST_ADD(_hist_,_val_) { \
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RF_Hist_t val; \
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val = ((RF_Hist_t)(_val_)) / 1000; \
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if (val >= RF_HIST_MAX_VAL) \
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_hist_[RF_HIST_NUM_BUCKETS-1]++; \
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else \
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_hist_[(val - RF_HIST_MIN_VAL) / RF_HIST_RESOLUTION]++; \
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}
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#endif /* !_RF__RF_HIST_H_ */
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