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Publish minor changes to readme and configure files in main directory. Main directory and code directory licence texts are now fully updated. Copied from Perforce Change: 196994
90 lines
3 KiB
C
90 lines
3 KiB
C
/* meter.h: METER INTERFACE
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*
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* $Id$
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* Copyright (c) 2001-2020 Ravenbrook Limited. See end of file for license.
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*
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* .sources: mps.design.metrics.
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*
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* .purpose: Defines an interface for creating "meters" that accumulate
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* the number, total and mean^2 of a set of data points. These
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* accumulators can be used to report on the number, total, average, and
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* variance of the data set.
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*/
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#ifndef meter_h
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#define meter_h
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#include "mpmtypes.h"
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#include "config.h"
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#include "misc.h"
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#include "mpslib.h"
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typedef struct MeterStruct *Meter;
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typedef struct MeterStruct
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{
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const char *name;
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Count count;
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double total;
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double meanSquared;
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Size min;
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Size max;
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} MeterStruct;
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extern void MeterInit(Meter meter, const char *name, void *owner);
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extern void MeterAccumulate(Meter meter, Size amount);
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extern Res MeterWrite(Meter meter, mps_lib_FILE *stream, Count depth);
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extern void MeterEmit(Meter meter);
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#define METER_DECL(meter) STATISTIC_DECL(struct MeterStruct meter)
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#define METER_INIT(meter, init, owner) \
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BEGIN STATISTIC(MeterInit(&(meter), init, owner)); UNUSED(owner); END
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/* Hack: owner is typically only used for MeterInit */
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#define METER_ACC(meter, delta) \
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STATISTIC(MeterAccumulate(&(meter), delta))
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#if defined(STATISTICS)
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#define METER_WRITE(meter, stream, depth) BEGIN \
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Res _res = MeterWrite(&(meter), (stream), (depth)); \
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if (_res != ResOK) return _res; \
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END
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#elif defined(STATISTICS_NONE)
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#define METER_WRITE(meter, stream, depth) NOOP
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#else
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#error "No statistics configured."
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#endif
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#define METER_EMIT(meter) STATISTIC(MeterEmit(meter))
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#endif /* meter_h */
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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (C) 2001-2020 Ravenbrook Limited <http://www.ravenbrook.com/>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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