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Unified databases so that signals and transactions can be loaded into

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same database
This commit is contained in:
Eyck Jentzsch
2015-01-10 00:23:46 +01:00
parent 9553fbff8c
commit dc861722c4
52 changed files with 703 additions and 478 deletions
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50
com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/IVCDDatabaseBuilder.java Normal file
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package com.minres.scviewer.database.vcd;
import com.minres.scviewer.database.BitVector;
// TODO: Auto-generated Javadoc
/**
* The Interface ITraceBuilder.
*/
public interface IVCDDatabaseBuilder {
/**
* Enter module.
*
* @param tokenString the token string
*/
public void enterModule(String tokenString);
/**
* Exit module.
*/
public void exitModule();
/**
* New net.
*
* @param netName the net name
* @param i the index of the net, -1 if a new one, otherwise the id if the referenced
* @param width the width
* @return the integer
*/
public Integer newNet(String netName, int i, int width) ;
/**
* Gets the net width.
*
* @param intValue the int value
* @return the net width
*/
public int getNetWidth(int intValue);
/**
* Append transition.
*
* @param intValue the int value
* @param fCurrentTime the f current time
* @param decodedValues the decoded values
*/
public void appendTransition(int intValue, long fCurrentTime, BitVector decodedValues);
}

168
com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/VCDDbLoader.java Normal file
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package com.minres.scviewer.database.vcd;
import java.io.File;
import java.io.FileInputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Stack;
import java.util.Vector;
import com.minres.scviewer.database.BitVector;
import com.minres.scviewer.database.EventTime;
import com.minres.scviewer.database.HierNode;
import com.minres.scviewer.database.ISignal;
import com.minres.scviewer.database.ISignalChange;
import com.minres.scviewer.database.ISignalChangeMulti;
import com.minres.scviewer.database.ISignalChangeSingle;
import com.minres.scviewer.database.IWaveformDb;
import com.minres.scviewer.database.IHierNode;
import com.minres.scviewer.database.ITxStream;
import com.minres.scviewer.database.IWaveform;
import com.minres.scviewer.database.IWaveformDbLoader;
import com.minres.scviewer.database.InputFormatException;
import com.minres.scviewer.database.SignalChange;
// TODO: Auto-generated Javadoc
/**
* The Class VCDDb.
*/
public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
private static final EventTime.Unit TIME_RES = EventTime.Unit.PS;
private IWaveformDb db;
/** The module stack. */
private Stack<String> moduleStack;
/** The signals. */
private List<IWaveform> signals;
private long maxTime;
/**
* Instantiates a new VCD db.
*
* @param netName the net name
*/
public VCDDbLoader() {
}
private byte[] x = "$date".getBytes();
/* (non-Javadoc)
* @see com.minres.scviewer.database.ITrDb#load(java.io.File)
*/
@Override
public boolean load(IWaveformDb db, File file) throws Exception {
this.db=db;
FileInputStream fis = new FileInputStream(file);
byte[] buffer = new byte[x.length];
int read = fis.read(buffer, 0, x.length);
fis.close();
if (read == x.length)
for (int i = 0; i < x.length; i++)
if (buffer[i] != x[i])
return false;
signals = new Vector<IWaveform>();
moduleStack= new Stack<String>();
boolean res = new VCDFileParser(false).load(new FileInputStream(file), this);
moduleStack=null;
if(!res) throw new InputFormatException();
EventTime lastTime=new EventTime(maxTime, TIME_RES);
for(IWaveform signal:signals){
ISignalChange change = ((ISignal<ISignalChange>)signal).getSignalChanges().last();
if(lastTime.compareTo(change.getTime())>0){
ISignalChange lastChange = change.duplicate();
((SignalChange)lastChange).setTime(lastTime);
((ISignal<ISignalChange>)signal).getSignalChanges().add(lastChange);
}
}
return true;
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.ITrDb#getMaxTime()
*/
@Override
public EventTime getMaxTime() {
return new EventTime(maxTime, TIME_RES);
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.ITrDb#getAllWaves()
*/
@Override
public List<IWaveform> getAllWaves() {
return signals;
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.vcd.ITraceBuilder#enterModule(java.lang.String)
*/
@Override
public void enterModule(String tokenString) {
if(moduleStack.isEmpty())
moduleStack.push(tokenString);
else
moduleStack.push(moduleStack.peek()+"."+tokenString);
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.vcd.ITraceBuilder#exitModule()
*/
@Override
public void exitModule() {
if(!moduleStack.isEmpty()) moduleStack.pop();
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.vcd.ITraceBuilder#newNet(java.lang.String, int, int)
*/
@Override
public Integer newNet(String netName, int i, int width) {
int id = signals.size();
VCDSignal<? extends ISignalChange> signal;
if(width==1){
signal = i<0 ? new VCDSignal<ISignalChangeSingle>(db, id, netName) :
new VCDSignal<ISignalChangeSingle>(signals.get(i), id, netName);
} else {
signal = i<0 ? new VCDSignal<ISignalChangeMulti>(db, id, netName, width) :
new VCDSignal<ISignalChangeMulti>(signals.get(i), id, netName);
};
signals.add(signal);
return id;
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.vcd.ITraceBuilder#getNetWidth(int)
*/
@SuppressWarnings("unchecked")
@Override
public int getNetWidth(int intValue) {
VCDSignal<? extends ISignalChange> signal = (VCDSignal<? extends ISignalChange>) signals.get(intValue);
return signal.getWidth();
}
/* (non-Javadoc)
* @see com.minres.scviewer.database.vcd.ITraceBuilder#appendTransition(int, long, com.minres.scviewer.database.vcd.BitVector)
*/
@SuppressWarnings("unchecked")
@Override
public void appendTransition(int intValue, long fCurrentTime, BitVector decodedValues) {
VCDSignal<? extends ISignalChange> signal = (VCDSignal<? extends ISignalChange>) signals.get(intValue);
EventTime time = new EventTime(fCurrentTime, TIME_RES);
if(signal.getWidth()==1){
VCDSignalChangeSingle change = new VCDSignalChangeSingle(time, decodedValues.getValue()[0]);
((VCDSignal<ISignalChangeSingle>)signal).addSignalChange(change);
} else {
VCDSignalChangeMulti change = new VCDSignalChangeMulti(time, decodedValues);
((VCDSignal<VCDSignalChangeMulti>)signal).addSignalChange(change);
}
maxTime= Math.max(maxTime, fCurrentTime);
}
}

214
com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/VCDFileParser.java Normal file
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package com.minres.scviewer.database.vcd;
import java.io.*;
import java.util.*;
import com.minres.scviewer.database.BitVector;
class VCDFileParser {
private StreamTokenizer tokenizer;
private IVCDDatabaseBuilder traceBuilder;
private HashMap<String, Integer> nameToNetMap = new HashMap<String, Integer>();
private long picoSecondsPerIncrement;
private boolean stripNetWidth;
long currentTime;
public VCDFileParser(boolean stripNetWidth) {
this.stripNetWidth=stripNetWidth;
}
public boolean load(InputStream is, IVCDDatabaseBuilder builder) {
tokenizer = new StreamTokenizer(new BufferedReader(new InputStreamReader(is)));
tokenizer.resetSyntax();
tokenizer.wordChars(33, 126);
tokenizer.whitespaceChars('\r', '\r');
tokenizer.whitespaceChars('\n', '\n');
tokenizer.whitespaceChars(' ', ' ');
tokenizer.whitespaceChars('\t', '\t');
try {
traceBuilder = builder;
currentTime=0;
while (parseDefinition());
while (parseTransition());
return true;
} catch (Exception exc) {
exc.printStackTrace();
return false;
}
}
private void parseScope() throws Exception {
nextToken(); // Scope type (ignore)
nextToken();
traceBuilder.enterModule(tokenizer.sval);
match("$end");
}
private void parseUpscope() throws Exception {
match("$end");
traceBuilder.exitModule();
}
private void parseVar() throws Exception {
nextToken(); // type
nextToken(); // size
int width = Integer.parseInt(tokenizer.sval);
nextToken();
String id = tokenizer.sval;
nextToken();
String netName = tokenizer.sval;
while (nextToken() && !tokenizer.sval.equals("$end")) {
netName+=tokenizer.sval;
}
Integer net = nameToNetMap.get(id);
if (net == null) {
// We've never seen this net before
if(stripNetWidth){
int openBracket = netName.indexOf('[');
if (openBracket != -1) netName = netName.substring(0, openBracket);
}
nameToNetMap.put(id, traceBuilder.newNet(netName, -1, width));
} else {
// Shares data with existing net. Add as clone.
traceBuilder.newNet(netName, net, width);
}
}
private void parseTimescale() throws Exception {
nextToken();
String s = tokenizer.sval;
nextToken();
while(!tokenizer.sval.equals("$end")){
s+=" "+tokenizer.sval;
nextToken();
}
switch (s.charAt(s.length() - 2)){
case 'p': // Nano-seconds
picoSecondsPerIncrement = 1;
s = s.substring(0, s.length() - 2).trim();
break;
case 'n': // Nano-seconds
picoSecondsPerIncrement = 1000;
s = s.substring(0, s.length() - 2).trim();
break;
case 'u': // Microseconds
picoSecondsPerIncrement = 1000000;
s = s.substring(0, s.length() - 2).trim();
break;
case 'm': // Microseconds
picoSecondsPerIncrement = 1000000000;
s = s.substring(0, s.length() - 2).trim();
break;
default: // Seconds
picoSecondsPerIncrement = 1000000000000L;
s = s.substring(0, s.length() - 1);
break;
}
picoSecondsPerIncrement *= Long.parseLong(s);
}
private boolean parseDefinition() throws Exception {
nextToken();
if (tokenizer.sval.equals("$scope"))
parseScope();
else if (tokenizer.sval.equals("$var"))
parseVar();
else if (tokenizer.sval.equals("$upscope"))
parseUpscope();
else if (tokenizer.sval.equals("$timescale"))
parseTimescale();
else if (tokenizer.sval.equals("$enddefinitions")) {
match("$end");
return false;
} else {
// Ignore this defintion
do {
if (!nextToken()) return false;
} while (!tokenizer.sval.equals("$end"));
}
return true;
}
private boolean parseTransition() throws Exception {
if (!nextToken()) return false;
if (tokenizer.sval.charAt(0) == '#') { // If the line begins with a #, this is a timestamp.
currentTime = Long.parseLong(tokenizer.sval.substring(1)) * picoSecondsPerIncrement;
} else {
if(tokenizer.sval.equals("$comment")){
do {
if (!nextToken()) return false;
} while (!tokenizer.sval.equals("$end"));
return true;
}
if (tokenizer.sval.equals("$dumpvars") || tokenizer.sval.equals("$end")) return true;
String value, id;
if (tokenizer.sval.charAt(0) == 'b') {
// Multiple value net. Value appears first, followed by space,
// then identifier
value = tokenizer.sval.substring(1);
nextToken();
id = tokenizer.sval;
} else {
// Single value net. identifier first, then value, no space.
value = tokenizer.sval.substring(0, 1);
id = tokenizer.sval.substring(1);
}
Integer net = nameToNetMap.get(id);
if (net == null) {
System.out.println("unknown net " + id + " value " + value);
return true;
}
int netWidth = traceBuilder.getNetWidth(net);
BitVector decodedValues = new BitVector(netWidth);
if (value.equals("z") && netWidth > 1) {
for (int i = 0; i < netWidth; i++)
decodedValues.setValue(i, BitVector.VALUE_Z);
} else if (value.equals("x") && netWidth > 1) {
for (int i = 0; i < netWidth; i++)
decodedValues.setValue(i, BitVector.VALUE_X);
} else {
int stringIndex = 0;
for (int convertedIndex = netWidth - value.length(); convertedIndex < netWidth; convertedIndex++) {
switch (value.charAt(stringIndex++)) {
case 'z':
decodedValues.setValue(convertedIndex, BitVector.VALUE_Z);
break;
case '1':
decodedValues.setValue(convertedIndex, BitVector.VALUE_1);
break;
case '0':
decodedValues.setValue(convertedIndex, BitVector.VALUE_0);
break;
case 'x':
decodedValues.setValue(convertedIndex, BitVector.VALUE_X);
break;
default:
decodedValues.setValue(convertedIndex, BitVector.VALUE_X);
}
}
}
traceBuilder.appendTransition(net, currentTime, decodedValues);
}
return true;
}
private void match(String value) throws Exception {
nextToken();
if (!tokenizer.sval.equals(value))
throw new Exception("Line "+tokenizer.lineno()+": parse error, expected "+value+" got "+tokenizer.sval);
}
private boolean nextToken() throws IOException {
return tokenizer.nextToken() != StreamTokenizer.TT_EOF;
}
};

110
com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/VCDSignal.java Normal file
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package com.minres.scviewer.database.vcd;
import java.util.NavigableSet;
import java.util.TreeSet;
import com.minres.scviewer.database.EventTime;
import com.minres.scviewer.database.HierNode;
import com.minres.scviewer.database.ISignal;
import com.minres.scviewer.database.ISignalChange;
import com.minres.scviewer.database.IWaveform;
import com.minres.scviewer.database.IWaveformDb;
import com.minres.scviewer.database.SignalChange;
public class VCDSignal<T extends ISignalChange> extends HierNode implements ISignal<T> {
private long id;
private String fullName;
private final String kind = "signal";
private final int width;
private IWaveformDb db;
TreeSet<ISignalChange> values;
public VCDSignal(IWaveformDb db, String name) {
this(db, 0, name, 1);
}
public VCDSignal(IWaveformDb db, int id, String name) {
this(db, id,name,1);
}
public VCDSignal(IWaveformDb db, int id, String name, int width) {
super(name);
this.db=db;
fullName=name;
this.id=id;
this.width=width;
this.values=new TreeSet<ISignalChange>();
}
@SuppressWarnings("unchecked")
public VCDSignal(IWaveform other, int id, String name) {
super(name);
fullName=name;
this.id=id;
assert(other instanceof VCDSignal<?>);
this.width=((VCDSignal<? extends ISignalChange>)other).width;
this.values=((VCDSignal<T>)other).values;
this.db=other.getDb();
}
@Override
public String getFullName() {
return fullName;
}
public void setId(int id) {
this.id=id;
}
@Override
public Long getId() {
return id;
}
@Override
public String getKind() {
return kind;
}
public int getWidth() {
return width;
}
@Override
public IWaveformDb getDb() {
return db;
}
public void addSignalChange(T change){
values.add(change);
}
@Override
public NavigableSet<ISignalChange> getSignalChanges() {
return values;
}
@SuppressWarnings("unchecked")
@Override
public T getSignalChangeByTime(EventTime time) {
return (T) values.floor(new SignalChange(time));
}
@Override
public NavigableSet<ISignalChange> getSignalChangesByTimes(EventTime start, EventTime end) {
ISignalChange low = values.floor(new SignalChange(start));
ISignalChange high = values.ceiling(new SignalChange(end));
if(high!=null)
return values.subSet(low, true, high, true);
else
return values.subSet(low, true, values.last(), true);
}
}

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com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/VCDSignalChangeMulti.java Normal file
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package com.minres.scviewer.database.vcd;
import com.minres.scviewer.database.BitVector;
import com.minres.scviewer.database.EventTime;
import com.minres.scviewer.database.ISignalChangeMulti;
import com.minres.scviewer.database.SignalChange;
public class VCDSignalChangeMulti extends SignalChange implements ISignalChangeMulti, Cloneable {
private BitVector value;
public VCDSignalChangeMulti(EventTime time) {
super(time);
}
public VCDSignalChangeMulti(EventTime time, BitVector decodedValues) {
super(time);
this.value=decodedValues;
}
public BitVector getValue() {
return value;
}
public void setValue(BitVector value) {
this.value = value;
}
}

24
com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/VCDSignalChangeSingle.java Normal file
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package com.minres.scviewer.database.vcd;
import com.minres.scviewer.database.EventTime;
import com.minres.scviewer.database.ISignalChangeSingle;
import com.minres.scviewer.database.SignalChange;
public class VCDSignalChangeSingle extends SignalChange implements ISignalChangeSingle, Cloneable {
private char value;
public VCDSignalChangeSingle(EventTime time, char value) {
super(time);
this.value=value;
}
public char getValue() {
return value;
}
public void setValue(char value) {
this.value = value;
}
}