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/***********************************************************************
* pragmatics.h - inference engine pragmatics analysis
*
* The analysis of how to organize the fetching of metrics (pragmatics)
* and other parts of the inference engine that are particularly
* sensitive to details of the performance metrics API are kept here.
***********************************************************************
*
* Copyright (c) 1995 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef PRAG_H
#define PRAG_H
#include "pmapi.h"
/* report where PCP data is coming from */
char *findsource(char *);
/* initialize performance metrics API */
void pmcsInit(void);
/* juggle contexts */
int newContext(char *);
/* initialize access to archive */
int initArchive(Archive *);
/* initialize timezone */
void zoneInit(void);
/* convert to canonical units */
pmUnits canon(pmUnits);
/* scale factor to canonical pmUnits */
double scale(pmUnits);
/* initialize Metric */
int initMetric(Metric *);
/* reinitialize Metric */
int reinitMetric(Metric *);
/* put initialiaed Metric onto fetch list */
void bundleMetric(Host *, Metric *);
/* reconnect attempt to host */
int reconnect(Host *);
/* pragmatics analysis */
void pragmatics(Symbol, RealTime);
/* execute fetches for given Task */
void taskFetch(Task *);
/* convert Expr value to pmValueSet value */
void fillVSet(Expr *, pmValueSet *);
/* send pmDescriptors for all expressions in given task */
void sendDescs(Task *);
/* put Metric onto wait list */
void waitMetric(Metric *);
/* remove Metric from wait list */
void unwaitMetric(Metric *);
/* check that pmUnits dimensions are equal */
#define dimeq(x, y) (((x).dimSpace == (y).dimSpace) && \
((x).dimTime == (y).dimTime) && \
((x).dimCount == (y).dimCount))
/* check equality of two pmUnits */
#define unieq(x, y) (((x).dimSpace == (y).dimSpace) && \
((x).dimTime == (y).dimTime) && \
((x).dimCount == (y).dimCount) && \
((x).scaleSpace == (y).scaleSpace) && \
((x).scaleTime == (y).scaleTime) && \
((x).scaleCount == (y).scaleCount))
/* for initialization of pmUnits struct */
extern pmUnits noUnits;
extern pmUnits countUnits;
/* flag processes spawned */
extern int need_wait;
#endif /* PRAG_H */
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