mass rename and rebranding from xwt to ibex - fixed to use ixt files

[org.ibex.core.git] / src / org / ibex / plat / GCJ.java

diff --git a/src/org/ibex/plat/GCJ.java b/src/org/ibex/plat/GCJ.java
new file mode 100644 (file)
index 0000000..55fdb09
--- /dev/null
+++ b/src/org/ibex/plat/GCJ.java
@@ -0,0 +1,54 @@
+// Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
+package org.ibex.plat;
+
+import org.ibex.*;
+import org.ibex.util.*;
+import java.io.*;
+
+/** common superclass for all platforms that use GCJ to compile a native binary */
+public abstract class GCJ extends Platform {
+
+    // static references to these classes ensure that the linker will include them
+    private static Class c1 = gnu.java.locale.Calendar.class;
+    private static Class c2 = java.util.GregorianCalendar.class;
+    private static Class c3 = gnu.gcj.convert.Input_ASCII.class;
+    private static Class c4 = gnu.gcj.convert.Input_UTF8.class;
+    private static Class c5 = gnu.gcj.convert.Input_8859_1.class;
+    private static Class c6 = gnu.java.locale.LocaleInformation.class;
+    private static Class c7 = gnu.gcj.convert.Output_ASCII.class;
+    private static Class c8 = gnu.java.locale.Calendar_en.class;
+    private static Class c9 = gnu.java.locale.Calendar_en_US.class;
+
+    protected native InputStream _getBuiltinInputStream();
+
+    protected native void _decodeJPEG(InputStream is, Picture p);
+
+    // FEATURE: This could be optimized (a lot) by using a custom hashtable
+    public final static class Retainer {
+        private static Hash table = new Hash();
+        private final static class Key {
+            private Object o;
+            public Key(Object o) { this.o = o; }
+            public int hashCode() { return o == null ? 0 : o.hashCode(); }
+            public boolean equals(Object o2) { return (o2 instanceof Key) && ((Key)o2).o == o; }
+        }
+        private final static class Entry {
+            private int refCount;
+            public Entry() { inc(); }
+            public void inc() { refCount++; }
+            public boolean dec() { return --refCount == 0; }
+        }
+        public static synchronized void retain(Object o) {
+            Key k = new Key(o);
+            Entry r = (Entry) table.get(k);
+            if(r == null) table.put(k,new Entry());
+            else r.inc();
+        }
+        public static synchronized void release(Object o) {
+            Key k = new Key(o);
+            Entry e = (Entry) table.get(k);
+            if(e == null) throw new Error("Retainer::Release on unknown object");
+            if(e.dec()) { table.remove(k); }
+        }
+    }
+}