src/edu/berkeley/fleet/interpreter/Interpreter.java

   1 package edu.berkeley.fleet.interpreter;
   2 import java.io.*;
   3 import java.util.*;
   4 import java.util.concurrent.*;
   5 import java.lang.reflect.*;
   6 import edu.berkeley.sbp.util.ANSI;
   7 import edu.berkeley.fleet.api.*;
   8 import edu.berkeley.fleet.two.*;
   9 import edu.berkeley.fleet.assembler.*;
  10 import edu.berkeley.fleet.util.*;
  11
  12 public class Interpreter extends FleetTwoFleet implements Parser.FleetWithDynamicShips {
  13
  14     private InterpreterShip debugShip = null;
  15     private BlockingQueue<BitVector> debugStream = new LinkedBlockingQueue<BitVector>();
  16     private HashMap<String,InterpreterShip> ships = new HashMap<String,InterpreterShip>();
  17     public Iterator<Ship> iterator() { return (Iterator<Ship>)(Object)ships.values().iterator(); }
  18     public Ship getShip(String type, int ordinal) {
  19         for(Ship s : this)
  20             if (s.getType().equals(type))
  21                 if (ordinal-- <= 0)
  22                     return s;
  23         return null;
  24     }
  25
  26     /** do not use this; it is going to go away */
  27     public Interpreter() {
  28     }
  29
  30     public Interpreter(String[] ships, boolean logging) {
  31         int i=0;
  32         Log.quiet = !logging;
  33         for(String s : ships) {
  34             createShip(ships[i], ships[i]+"_"+i);
  35             i++;
  36         }
  37     }
  38
  39     void dispatch(Instruction i) {
  40         Log.dispatch(i);
  41         long il = writeInstruction(i, debugShip.getDock("in"));
  42         Path path = debugShip.getDock("in").getPath(i.dock.getInstructionDestination(), null);
  43         new Packet((InterpreterPath)path, new BitVector(getWordWidth()).set(il), false).send();
  44     }
  45
  46     /** do not use this; it is going to go away */
  47     public Ship createShip(String shipType, String shipname) {
  48         try {
  49             if (ships.get(shipname)!=null) return ships.get(shipname);
  50             Class c = Class.forName("edu.berkeley.fleet.interpreter."+shipType);
  51             Constructor con = c.getConstructor(new Class[] { Interpreter.class, String.class, ShipDescription.class });
  52             BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("ships/"+shipType+".ship")));
  53             ShipDescription sd = new ShipDescription(shipType, br);
  54             InterpreterShip ret = (InterpreterShip)con.newInstance(new Object[] { this, shipname, sd });
  55             ships.put(shipname, ret);
  56             if (shipType.equals("Debug") && debugShip == null)
  57                 debugShip = ret;
  58             return ret;
  59         } catch (Exception e) {
  60             e.printStackTrace();
  61             return null;
  62         }
  63     }
  64
  65     void debug(long d) { debug(new BitVector(getWordWidth()).set(d)); }
  66     void debug(BitVector data) {
  67         try {
  68             if (debugStream != null) debugStream.put(data);
  69             else Log.println(ANSI.invert("   DEBUG: got a datum: " +  data+ANSI.clreol()));
  70         } catch (Exception e) {
  71             throw new RuntimeException(e);
  72         }
  73     }
  74
  75     // Instruction Encoding /////////////////////////////////////////////////////////////////////////
  76
  77     public BitVector getDestAddr(Path path) {
  78         long ret = ((InterpreterDestination)path.getDestination()).addr;
  79         BitVector sig = path.getSignal();
  80         BitVector bv = new BitVector(DISPATCH_PATH.valmaskwidth+1);
  81         bv.set(ret);
  82         if (sig != null) {
  83             if (sig.length() > 1) throw new RuntimeException("signal was " + sig.length() + " bits long!");
  84             if (sig.length() > 0 && sig.get(0)) bv.set(bv.length()-1,true);
  85         }
  86         return bv;
  87     }
  88
  89
  90     // ShipDescription //////////////////////////////////////////////////////////////////////////////
  91
  92     public void expand(ShipDescription sd) {
  93         try {
  94             String filename = sd.getName();
  95             //String filename = (sd.getName().charAt(0)+"").toUpperCase() + sd.getName().substring(1).toLowerCase();
  96             File outf = new File("build/java/edu/berkeley/fleet/interpreter/"+filename+".java");
  97             new File(outf.getParent()).mkdirs();
  98             System.err.println("writing to " + outf);
  99             FileOutputStream out = new FileOutputStream(outf);
 100             PrintWriter pw = new PrintWriter(out);
 101
 102             pw.println("package edu.berkeley.fleet.interpreter;");
 103             pw.println("import edu.berkeley.sbp.util.ANSI;");
 104             pw.println("import edu.berkeley.fleet.api.*;");
 105             pw.println("import edu.berkeley.fleet.two.*;");
 106             pw.println("import edu.berkeley.fleet.*;");
 107             pw.println("import java.util.*;");
 108             pw.println("import java.io.*;");
 109             pw.println("");
 110             pw.println("public class "+filename+" extends InterpreterShip {");
 111             pw.println("");
 112             for(DockDescription b : sd) {
 113                 String name = b.getName();
 114                 pw.print("    InterpreterDock box_");
 115                 pw.print(name);
 116                 pw.print(" = new InterpreterDock(this, shipDescription.getDockDescription(\""+name+"\"));");
 117             }
 118             pw.println("");
 119             pw.println("    public "+filename+"(Interpreter fleet, String name, ShipDescription sd) {");
 120             pw.println("       super(fleet, sd);");
 121             for(DockDescription b : sd)
 122                 pw.println("       addDock(\""+b.getName()+"\", box_"+b.getName()+");");
 123             pw.println("    }");
 124             pw.println("");
 125             pw.println(sd.getSection("fleeterpreter"));
 126             pw.println("}");
 127             pw.flush();
 128             pw.close();
 129         } catch (Exception e) { throw new RuntimeException(e); }
 130     }
 131
 132     // Run //////////////////////////////////////////////////////////////////////////////
 133
 134     public FleetProcess run(final Instruction[] instructions) {
 135         InterpreterProcess ip = new InterpreterProcess(instructions);
 136         new Thread(ip).start();
 137         return ip;
 138     }
 139
 140     public class InterpreterProcess extends FleetProcess implements Runnable {
 141         private Instruction[] instructions;
 142         public void flush() { }
 143         public void sendWord(Destination d, BitVector word) {
 144             throw new RuntimeException("not implemented");
 145         }
 146         public void sendToken(Destination d) { throw new RuntimeException("not implemented"); }
 147         public InterpreterProcess(Instruction[] instructions) {
 148             this.instructions = instructions;
 149             for(Instruction i : instructions)
 150                 sendInstruction(i);
 151         }
 152         public Fleet getFleet() { return Interpreter.this; }
 153         public void sendInstruction(Instruction i) { dispatch(i); }
 154         public Dock getDebugInputDock() { return debugShip.getDock("in"); }
 155         public BitVector recvWord() {
 156             try {
 157                 return debugStream.take();
 158             } catch (Exception e) { throw new RuntimeException(e); }
 159         }
 160         protected void _terminate() { }
 161         public void run() {
 162             try {
 163                 while(!isTerminated())
 164                     for(InterpreterShip ship : ships.values())
 165                         for(int j=0; j<10; j++)
 166                             ship._service();
 167                 for(InterpreterShip ship : ships.values())
 168                     ship.reset();
 169                 debugStream.clear();
 170             } catch (Exception e) {
 171                 if (isTerminated()) return;
 172                 throw new RuntimeException(e);
 173             }
 174         }
 175
 176         public void step(Dock d) {
 177             ((InterpreterDock)d).service();
 178         }
 179
 180         public void step(Ship s) {
 181             ((InterpreterShip)s).service();
 182         }
 183
 184     }
 185 }