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trace.cpp

/*
 *                         Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"); you may not use this file except
 * in compliance with the License. A copy of the License is available
 * at http://www.sun.com/
 *
 * The Original Code is the Java Profiler module.  The Initial Developers
 * of the Original Code are Jan Stola, Pavel Vacha, Michal Pise, Petr Luner,
 * Lukas Petru and Marek Przeczek.
 *
 * Portions created by Jan Stola are Copyright (C) 2000-2001.
 * All Rights Reserved.
 *
 * Portions created by Pavel Vacha are Copyright (C) 2000-2001.
 * All Rights Reserved.
 *
 * Portions created by Michal Pise are Copyright (C) 2000-2001.
 * All Rights Reserved.
 *
 * Portions created by Petr Luner are Copyright (C) 2000-2001.
 * All Rights Reserved.
 *
 * Portions created by Lukas Petru are Copyright (C) 2000-2001.
 * All Rights Reserved.
 *
 * Portions created by Marek Przeczek are Copyright (C) 2000-2001.
 * All Rights Reserved.
 *
 * Contributors: Jan Stola, Pavel Vacha, Michal Pise, Petr Luner,
 *               Lukas Petru and Marek Przeczek.
 */

#include "../shared/trace.h"
#include "../shared/traceFrame.h"
#include "../shared/method.h"

Trace::~Trace() {

        if( frames) TraceFrame::deleteArray(frames, numFrames);
        frames = NULL;
}

Buffer& Trace::infoToBin( Buffer& b) {

        b += numFrames;

        TraceFrame* p = frames;
        for( jint i = 0; i < numFrames; i++, p++) {
        
                b += p->lineno;
                b += p->method->getProfID();
        }

        return b;
}

const TraceKey& Trace::getKey(TraceKey& key) {

        TraceFrame* tf = frames;
        JVMPI_CallFrame* cf = key.frames;

        key.numFrames = numFrames;
        for (int i = 0; i < numFrames; i++, tf++, cf++) {
                cf->lineno = tf->lineno;
                tf->method->getKey(cf->method_id);
        }

        return key;
}

int Trace::operator==(const TraceKey& key) {

        if (key.numFrames != numFrames) return 0;

        const JVMPI_CallFrame* cf = key.frames;
        TraceFrame* tf = frames;

        for (int i = 0; i < numFrames; i++, tf++, cf++)
                if( (tf->lineno != cf->lineno) || (!(*tf->method == cf->method_id))) return 0;

        return 1;
}

int Trace::hashKey(const TraceKey& key) {

        const JVMPI_CallFrame* p = key.frames;
        int sum = 0;

        for (int i = 0; i < key.numFrames; i++, p++) {
                sum += (int)p->lineno;
                sum += Method::hashKey(p->method_id);
        }

        return sum;
}

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