+++ /dev/null
-package Analysis.TaskStateAnalysis;
-
-import Analysis.Scheduling.ScheduleEdge;
-import Analysis.TaskStateAnalysis.*;
-import IR.*;
-import IR.Tree.*;
-import IR.Flat.*;
-import java.util.*;
-import java.io.*;
-import Util.GraphNode;
-
-/** This class is used to hold the flag states that a class in the Bristlecone
- * program can exist in, during runtime.
- */
-public class FlagState extends GraphNode implements Cloneable {
- public static final int ONETAG=1;
- public static final int NOTAGS=0;
- public static final int MULTITAGS=-1;
- public static final int MAXTIME=10;
-
- private int uid;
- private static int nodeid=0;
-
- private final HashSet flagstate;
- private final ClassDescriptor cd;
- private final Hashtable<TagDescriptor,Integer> tags;
- private boolean issourcenode;
- private Vector tasks;
- public static final int KLIMIT=2;
-
- // jzhou
- // for static scheduling
- private int executeTime;
- private int visited4time;
- private int invokeNum;
- // for building multicore codes
- private int andmask;
- private int checkmask;
- private boolean setmask;
- private int iuid;
- //private boolean isolate;
- //private Vector<ScheduleEdge> allys;
-
- /** Class constructor
- * Creates a new flagstate with all flags set to false.
- * @param cd ClassDescriptor
- */
- public FlagState(ClassDescriptor cd) {
- this.flagstate=new HashSet();
- this.cd=cd;
- this.tags=new Hashtable<TagDescriptor,Integer>();
- this.uid=FlagState.nodeid++;
- this.issourcenode=false;
- this.executeTime = -1;
- this.visited4time = -1;
- this.invokeNum = 0;
- this.andmask = 0;
- this.checkmask = 0;
- this.setmask = false;
- this.iuid = 0;
- //this.isolate = true;
- //this.allys = null;
- }
-
- /** Class constructor
- * Creates a new flagstate with flags set according to the HashSet.
- * If the flag exists in the hashset, it's set to true else set to false.
- * @param cd ClassDescriptor
- * @param flagstate a <CODE>HashSet</CODE> containing FlagDescriptors
- */
- private FlagState(HashSet flagstate, ClassDescriptor cd,Hashtable<TagDescriptor,Integer> tags) {
- this.flagstate=flagstate;
- this.cd=cd;
- this.tags=tags;
- this.uid=FlagState.nodeid++;
- this.issourcenode=false;
- this.executeTime = -1;
- this.visited4time = -1;
- this.invokeNum = 0;
- }
-
- public int getuid() {
- return uid;
- }
-
- public int getiuid() {
- return iuid++;
- }
-
- public boolean isSetmask() {
- return setmask;
- }
-
- public void setSetmask(boolean setmask) {
- this.setmask = setmask;
- }
-
- /** Accessor method
- * @param fd FlagDescriptor
- * @return true if the flagstate contains fd else false.
- */
- public boolean get(FlagDescriptor fd) {
- return flagstate.contains(fd);
- }
-
- /** Checks if the flagstate is a source node.
- * @return true if the flagstate is a sourcenode(i.e. Is the product of an allocation site).
- */
-
- public boolean isSourceNode() {
- return issourcenode;
- }
-
- /** Sets the flagstate as a source node.
- */
- public void setAsSourceNode() {
- if(!issourcenode) {
- issourcenode=true;
- this.tasks=new Vector();
- }
- }
-
- public void addAllocatingTask(TaskDescriptor task) {
- tasks.add(task);
- }
-
- public Vector getAllocatingTasks() {
- return tasks;
- }
-
-
- public String toString() {
- return cd.toString()+getTextLabel();
- }
-
- /** @return Iterator over the flags in the flagstate.
- */
-
- public Iterator getFlags() {
- return flagstate.iterator();
- }
-
- public int numFlags() {
- return flagstate.size();
- }
-
- public FlagState[] setTag(TagDescriptor tag, boolean set) {
- HashSet newset1=(HashSet)flagstate.clone();
- Hashtable<TagDescriptor,Integer> newtags1=(Hashtable<TagDescriptor,Integer>)tags.clone();
-
- if (set) {
- int count=0;
- if (tags.containsKey(tag))
- count=tags.get(tag).intValue();
- if (count<KLIMIT)
- count++;
- newtags1.put(tag, new Integer(count));
- return new FlagState[] {new FlagState(newset1, cd, newtags1)};
- } else {
- int count=1;
- if (tags.containsKey(tag))
- count=tags.get(tag).intValue();
- newtags1.put(tag, new Integer(count));
- if ((count+1)==KLIMIT)
- return new FlagState[] {this, new FlagState(newset1, cd, newtags1)};
- else
- return new FlagState[] {new FlagState(newset1, cd, newtags1)};
- }
- }
-
- public FlagState[] setTag(TagDescriptor tag) {
- HashSet newset1=(HashSet)flagstate.clone();
- Hashtable<TagDescriptor,Integer> newtags1=(Hashtable<TagDescriptor,Integer>)tags.clone();
-
- if (tags.containsKey(tag)) {
- //Code could try to remove flag that doesn't exist
-
- switch (tags.get(tag).intValue()) {
- case ONETAG:
- newtags1.put(tag,new Integer(MULTITAGS));
- return new FlagState[] {this, new FlagState(newset1, cd, newtags1)};
-
- case MULTITAGS:
- return new FlagState[] {this};
-
- default:
- throw new Error();
- }
- } else {
- newtags1.put(tag,new Integer(ONETAG));
- return new FlagState[] {new FlagState(newset1,cd,newtags1)};
- }
- }
-
- public int getTagCount(TagDescriptor tag) {
- if (tags.containsKey(tag))
- return tags.get(tag).intValue();
- else return 0;
- }
-
- public int getTagCount(String tagtype) {
- return getTagCount(new TagDescriptor(tagtype));
- }
-
- public FlagState[] clearTag(TagDescriptor tag) {
- if (tags.containsKey(tag)) {
- switch(tags.get(tag).intValue()) {
- case ONETAG:
- HashSet newset=(HashSet)flagstate.clone();
- Hashtable<TagDescriptor,Integer> newtags=(Hashtable<TagDescriptor,Integer>)tags.clone();
- newtags.remove(tag);
- return new FlagState[] {new FlagState(newset,cd,newtags)};
-
- case MULTITAGS:
- //two possibilities - count remains 2 or becomes 1
- //2 case
- HashSet newset1=(HashSet)flagstate.clone();
- Hashtable<TagDescriptor,Integer> newtags1=(Hashtable<TagDescriptor,Integer>)tags.clone();
-
- //1 case
- HashSet newset2=(HashSet)flagstate.clone();
- Hashtable<TagDescriptor,Integer> newtags2=(Hashtable<TagDescriptor,Integer>)tags.clone();
- newtags1.put(tag,new Integer(ONETAG));
- return new FlagState[] {new FlagState(newset1, cd, newtags2),
- new FlagState(newset2, cd, newtags2)};
-
- default:
- throw new Error();
- }
- } else {
- throw new Error("Invalid Operation: Can not clear a tag that doesn't exist.");
- }
- }
-
- /** Creates a string description of the flagstate
- * e.g. a flagstate with five flags could look like 01001
- * @param flags an array of flagdescriptors.
- * @return string representation of the flagstate.
- */
- public String toString(FlagDescriptor[] flags) {
- StringBuffer sb = new StringBuffer(flagstate.size());
- for(int i=0; i < flags.length; i++) {
- if (get(flags[i]))
- sb.append(1);
- else
- sb.append(0);
- }
-
- return new String(sb);
- }
-
- /** Accessor method
- * @return returns the classdescriptor of the flagstate.
- */
-
- public ClassDescriptor getClassDescriptor() {
- return cd;
- }
-
- /** Sets the status of a specific flag in a flagstate after cloning it.
- * @param fd FlagDescriptor of the flag whose status is being set.
- * @param status boolean value
- * @return the new flagstate with <CODE>fd</CODE> set to <CODE>status</CODE>.
- */
-
- public FlagState setFlag(FlagDescriptor fd, boolean status) {
- HashSet newset=(HashSet) flagstate.clone();
- Hashtable<TagDescriptor,Integer> newtags=(Hashtable<TagDescriptor,Integer>)tags.clone();
- if (status)
- newset.add(fd);
- else if (newset.contains(fd)) {
- newset.remove(fd);
- }
-
- return new FlagState(newset, cd, newtags);
- }
-
- /** Tests for equality of two flagstate objects.
- */
-
- public boolean equals(Object o) {
- if (o instanceof FlagState) {
- FlagState fs=(FlagState)o;
- if (fs.cd!=cd)
- return false;
- return (fs.flagstate.equals(flagstate) & fs.tags.equals(tags));
- }
- return false;
- }
-
- public int hashCode() {
- return cd.hashCode()^flagstate.hashCode()^tags.hashCode();
- }
-
- public String getLabel() {
- return "N"+uid;
- }
-
- public String getTextLabel() {
- String label=null;
- for(Iterator it=getFlags(); it.hasNext();) {
- FlagDescriptor fd=(FlagDescriptor) it.next();
- if (label==null)
- label=fd.toString();
- else
- label+=", "+fd.toString();
- }
- for (Enumeration en_tags=getTags(); en_tags.hasMoreElements();) {
- TagDescriptor td=(TagDescriptor)en_tags.nextElement();
- switch (tags.get(td).intValue()) {
- case ONETAG:
- if (label==null)
- label=td.toString()+"(1)";
- else
- label+=", "+td.toString()+"(1)";
- break;
-
- case MULTITAGS:
- if (label==null)
- label=td.toString()+"(n)";
- else
- label+=", "+td.toString()+"(n)";
- break;
-
- default:
- break;
- }
- }
- if (label==null)
- return " ";
- return label;
- }
-
- public Enumeration getTags() {
- return tags.keys();
- }
-
- public int getExeTime() {
- try {
- if(this.executeTime == -1) {
- if(this.visited4time == -1) {
- this.visited4time = 0;
- calExeTime();
- } else {
- // visited, this node is in a loop
- // TODO
- // currently set 10 as the largest time
- this.executeTime = FlagState.MAXTIME;
- }
- }
- } catch (Exception e) {
- e.printStackTrace();
- System.exit(0);
- }
- return this.executeTime;
- }
-
- public void setExeTime(int exeTime) {
- this.executeTime = exeTime;
- }
-
- public int getAndmask() {
- return andmask;
- }
-
- public void setAndmask(int andmask) {
- this.andmask = andmask;
- }
-
- public int getCheckmask() {
- return checkmask;
- }
-
- public void setCheckmask(int checkmask) {
- this.checkmask = checkmask;
- }
-
- public void calExeTime() throws Exception {
- Iterator it = this.edges();
- if(it.hasNext()) {
- FEdge fe = (FEdge)it.next();
- while((fe != null) && (fe.getTarget().equals(this))) {
- if(it.hasNext()) {
- fe = (FEdge)it.next();
- } else {
- fe = null;
- }
- }
- if(fe == null) {
- this.executeTime = 0;
- } else {
- if(fe.getExeTime() == -1) {
- throw new Exception("Error: Uninitiate FEdge!");
- }
- this.executeTime = fe.getExeTime() + ((FlagState)fe.getTarget()).getExeTime();
- }
- } else {
- this.executeTime = 0;
- }
- while(it.hasNext()) {
- FEdge fe = (FEdge)it.next();
- int temp = fe.getExeTime() + ((FlagState)fe.getTarget()).getExeTime();
- if(temp < this.executeTime) {
- this.executeTime = temp;
- }
- }
- }
-
- public Object clone() {
- FlagState o = null;
- try {
- o = (FlagState) super.clone();
- } catch(CloneNotSupportedException e) {
- e.printStackTrace();
- }
- o.uid = FlagState.nodeid++;
- o.edges = new Vector();
- for(int i = 0; i < this.edges.size(); i++) {
- o.edges.addElement(this.edges.elementAt(i));
- }
- o.inedges = new Vector();
- for(int i = 0; i < this.inedges.size(); i++) {
- o.inedges.addElement(this.inedges.elementAt(i));
- }
- return o;
- }
-
- public void init4Simulate() {
- this.invokeNum = 0;
- }
-
- public FEdge process(TaskDescriptor td) {
- FEdge next = null;
- this.invokeNum++;
- // refresh all the expInvokeNum of each edge
- for(int i = 0; i < this.edges.size(); i++) {
- next = (FEdge) this.edges.elementAt(i);
- next.setExpInvokeNum((int)Math.round(this.invokeNum * (next.getProbability() / 100)));
- }
-
- // find the one with the biggest gap between its actual invoke time and the expected invoke time
- // and associated with task td
- int index = 0;
- int gap = 0;
- for(int i = 0; i < this.edges.size(); i++) {
- int temp = ((FEdge) this.edges.elementAt(index)).getInvokeNumGap();
- if((temp > gap) && (next.getTask().equals(td))) {
- index = i;
- gap = temp;
- }
- }
- next = (FEdge) this.edges.elementAt(index);
- next.process();
-
- return next;
- }
-
- /*public Vector<ScheduleEdge> getAllys() {
- return allys;
- }
-
- public void addAlly(ScheduleEdge se) {
- if(this.allys == null) {
- assert(this.isolate == true);
- this.isolate = false;
- this.allys = new Vector<ScheduleEdge>();
- }
- this.allys.addElement(se);
- }
-
- public boolean isIsolate() {
- return isolate;
- }*/
-
-}
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