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             Class c = Class.forName("edu.berkeley.fleet.interpreter."+shipType);
  50             Constructor con = c.getConstructor(new Class[] { Interpreter.class, String.class, ShipDescription.class });
  51             BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream("ships/"+shipType+".ship")));
  52             ShipDescription sd = new ShipDescription(shipType, br);
  53             InterpreterShip ret = (InterpreterShip)con.newInstance(new Object[] { this, shipname, sd });
  54             ships.put(shipname, ret);
  55             if (shipType.equals("Debug") && debugShip == null)
  56                 debugShip = ret;
  57             return ret;
  58         } catch (Exception e) {
  59             e.printStackTrace();
  60             return null;
  61         }
  62     }
  63
  64     void debug(long d) { debug(new BitVector(getWordWidth()).set(d)); }
  65     void debug(BitVector data) {
  66         try {
  67             if (debugStream != null) debugStream.put(data);
  68             else Log.println(ANSI.invert("   DEBUG: got a datum: " +  data+ANSI.clreol()));
  69         } catch (Exception e) {
  70             throw new RuntimeException(e);
  71         }
  72     }
  73
  74     // Instruction Encoding /////////////////////////////////////////////////////////////////////////
  75
  76     public long getDestAddr(Path path) {
  77         long ret = ((InterpreterDestination)path.getDestination()).addr;
  78         BitVector bv = path.getSignal();
  79         if (bv != null) {
  80             if (bv.length() > 1) throw new RuntimeException("signal was " + bv.length() + " bits long!");
  81             if (bv.length() > 0 && bv.get(0)) ret |= 1;
  82         }
  83         return ret;
  84     }
  85
  86
  87     // ShipDescription //////////////////////////////////////////////////////////////////////////////
  88
  89     public void expand(ShipDescription sd) {
  90         try {
  91             String filename = sd.getName();
  92             //String filename = (sd.getName().charAt(0)+"").toUpperCase() + sd.getName().substring(1).toLowerCase();
  93             File outf = new File("build/java/edu/berkeley/fleet/interpreter/"+filename+".java");
  94             new File(outf.getParent()).mkdirs();
  95             System.err.println("writing to " + outf);
  96             FileOutputStream out = new FileOutputStream(outf);
  97             PrintWriter pw = new PrintWriter(out);
  98
  99             pw.println("package edu.berkeley.fleet.interpreter;");
 100             pw.println("import edu.berkeley.sbp.util.ANSI;");
 101             pw.println("import edu.berkeley.fleet.api.*;");
 102             pw.println("import edu.berkeley.fleet.two.*;");
 103             pw.println("import edu.berkeley.fleet.*;");
 104             pw.println("import java.util.*;");
 105             pw.println("import java.io.*;");
 106             pw.println("");
 107             pw.println("public class "+filename+" extends InterpreterShip {");
 108             pw.println("");
 109             for(DockDescription b : sd) {
 110                 String name = b.getName();
 111                 pw.print("    InterpreterDock box_");
 112                 pw.print(name);
 113                 pw.print(" = new InterpreterDock(this, shipDescription.getDockDescription(\""+name+"\"));");
 114             }
 115             pw.println("");
 116             pw.println("    public "+filename+"(Interpreter fleet, String name, ShipDescription sd) {");
 117             pw.println("       super(fleet, sd);");
 118             for(DockDescription b : sd)
 119                 pw.println("       addDock(\""+b.getName()+"\", box_"+b.getName()+");");
 120             pw.println("    }");
 121             pw.println("");
 122             pw.println(sd.getSection("fleeterpreter"));
 123             pw.println("}");
 124             pw.flush();
 125             pw.close();
 126         } catch (Exception e) { throw new RuntimeException(e); }
 127     }
 128
 129     // Run //////////////////////////////////////////////////////////////////////////////
 130
 131     public FleetProcess run(final Instruction[] instructions) {
 132         InterpreterProcess ip = new InterpreterProcess(instructions);
 133         new Thread(ip).start();
 134         return ip;
 135     }
 136
 137     private class InterpreterProcess extends FleetProcess implements Runnable {
 138         private Instruction[] instructions;
 139         public InterpreterProcess(Instruction[] instructions) {
 140             this.instructions = instructions;
 141             for(Instruction i : instructions)
 142                 dispatchInstruction(i);
 143         }
 144         public void dispatchInstruction(Instruction i) { dispatch(i); }
 145         public Dock getDebugInputDock() { return debugShip.getDock("in"); }
 146         public BitVector readWord() {
 147             try {
 148                 return debugStream.take();
 149             } catch (Exception e) { throw new RuntimeException(e); }
 150         }
 151         protected void _terminate() { }
 152         public void run() {
 153             try {
 154                 while(!isTerminated())
 155                     for(InterpreterShip ship : ships.values())
 156                         for(int j=0; j<10; j++)
 157                             ship._service();
 158                 for(InterpreterShip ship : ships.values())
 159                     ship.reset();
 160                 debugStream.clear();
 161             } catch (Exception e) {
 162                 if (isTerminated()) return;
 163                 throw new RuntimeException(e);
 164             }
 165         }
 166     }
 167 }