/carrot-jdk6-jnlp-macosx/src/plugin/share/classes/sun/plugin2/gluegen/runtime/CPU.java

/*
 * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved.
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 * modification, are permitted provided that the following conditions are
 * met:
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
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package sun.plugin2.gluegen.runtime;

/** Provides information to autogenerated struct accessors about what
    kind of data model (32- or 64-bit) is being used by the currently
    running process. */

public class CPU {
  private static boolean is32Bit;

  static {
    // We don't seem to need an AccessController.doPrivileged() block
    // here as these system properties are visible even to unsigned
    // applets
    // Note: this code is replicated in StructLayout.java
    String os = System.getProperty("os.name").toLowerCase();
    String cpu = System.getProperty("os.arch").toLowerCase();
    if ((os.startsWith("windows") && cpu.equals("x86")) ||
        (os.startsWith("linux") && cpu.equals("i386")) ||
        (os.startsWith("mac os") && cpu.equals("ppc")) ||
        (os.startsWith("mac os") && cpu.equals("i386")) ||
        (os.startsWith("sunos") && cpu.equals("sparc")) ||
        (os.startsWith("sunos") && cpu.equals("x86")) ||
        (os.startsWith("freebsd") && cpu.equals("i386")) ||
        (os.startsWith("hp-ux") && cpu.equals("pa_risc2.0"))) {
      is32Bit = true;
    } else if ((os.startsWith("windows") && cpu.equals("amd64")) ||
               (os.startsWith("linux") && cpu.equals("amd64")) ||
               (os.startsWith("linux") && cpu.equals("x86_64")) ||
               (os.startsWith("linux") && cpu.equals("ia64")) ||
               (os.startsWith("sunos") && cpu.equals("sparcv9")) ||
               (os.startsWith("sunos") && cpu.equals("amd64"))) {
    } else {
      throw new RuntimeException("Please port CPU detection (32/64 bit) to your platform (" + os + "/" + cpu + ")");
    }
  }

  public static boolean is32Bit() {
    return is32Bit;
  }
}