[Pearcolator-devel] SF.net SVN: pearcolator: [84] src/org/binarytranslator/generic/os/abi/linux /LinuxStructureFactory.java

[<mic...@us...>]

Revision: 84
          http://svn.sourceforge.net/pearcolator/?rev=84&view=rev
Author:   michael_baer
Date:     2007-04-23 07:02:09 -0700 (Mon, 23 Apr 2007)

Log Message:
-----------
Just to show something to Ian...

Added Paths:
-----------
    src/org/binarytranslator/generic/os/abi/linux/LinuxStructureFactory.java

Added: src/org/binarytranslator/generic/os/abi/linux/LinuxStructureFactory.java
===================================================================
--- src/org/binarytranslator/generic/os/abi/linux/LinuxStructureFactory.java	                        (rev 0)
+++ src/org/binarytranslator/generic/os/abi/linux/LinuxStructureFactory.java	2007-04-23 14:02:09 UTC (rev 84)
@@ -0,0 +1,92 @@
+package org.binarytranslator.generic.os.abi.linux;
+
+import org.binarytranslator.generic.memory.Memory;
+
+/** Namespace for all structures. */
+public class LinuxStructureFactory {
+  
+  /** Solution 1 - automatically generated class. Fast, but pretty unflexible.*/
+  public class stat64_2 {
+    
+    private Memory mem;
+    private int addr;
+    
+    void st_dev(int value) {
+      mem.store32(addr + 3, value);
+    }
+    
+    int st_dev() {
+      return mem.load32(addr + 3);
+    }
+  }
+  
+  /** Solution 2 - class members created from factory method. More flexible, but higher overhead. */
+  public static class stat64 extends Structure {
+    public final _Int st_dev = newInt();
+    public final _Short st_mode = newShort();
+  }
+  
+  
+  
+  
+  protected static class Structure {
+    
+    protected Memory memory;
+    private int curOffset = 0;
+    
+    public abstract class StructureElement<T> {
+
+      protected int address;
+      public abstract T get();
+      public abstract void set(T value);
+    }
+    
+    protected _Int newInt() {
+      _Int i = new _Int(curOffset);
+      curOffset += 4;
+      
+      return i;
+    }
+    
+    protected _Short newShort() {
+      _Short s = new _Short(curOffset);
+      curOffset += 2;
+      
+      return s;
+    }
+
+    public class _Int extends StructureElement<Integer> {
+      
+      private _Int(int offset) {
+        this.address = offset;
+      }
+
+      @Override
+      public Integer get() {
+        return memory.load32(address);
+      }
+
+      @Override
+      public void set(Integer value) {
+        memory.store32(address, value);
+      }
+    }
+
+    public class _Short extends StructureElement<Short> {
+      
+      private _Short(int offset) {
+        this.address = offset;
+      }
+
+      @Override
+      public Short get() {
+        return (short) memory.loadUnsigned16(address);
+      }
+
+      @Override
+      public void set(Short value) {
+        memory.store16(address, value);
+      }
+    }
+  }
+}


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