1 files changed, 76 insertions, 0 deletions
diff --git a/src/nativewindow/classes/com/sun/nativewindow/impl/x11/X11NativeWindowFactory.java b/src/nativewindow/classes/com/sun/nativewindow/impl/x11/X11NativeWindowFactory.java
new file mode 100644
index 0000000..1643c30
--- /dev/null
+++ b/src/nativewindow/classes/com/sun/nativewindow/impl/x11/X11NativeWindowFactory.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * 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,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ */
+
+package com.sun.nativewindow.impl.x11;
+
+import javax.media.nativewindow.*;
+import com.sun.nativewindow.impl.*;
+
+public class X11NativeWindowFactory extends NativeWindowFactoryImpl {
+    // On X11 platforms we need to do some locking; this basic
+    // implementation should suffice for some simple window toolkits
+    private ToolkitLock toolkitLock = new ToolkitLock() {
+            private Thread owner;
+            private int recursionCount;
+            
+            public synchronized void lock() {
+                Thread cur = Thread.currentThread();
+                if (owner == cur) {
+                    ++recursionCount;
+                    return;
+                }
+                while (owner != null) {
+                    try {
+                        wait();
+                    } catch (InterruptedException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+                owner = cur;
+            }
+
+            public synchronized void unlock() {
+                if (owner != Thread.currentThread()) {
+                    throw new RuntimeException("Not owner");
+                }
+                if (recursionCount > 0) {
+                    --recursionCount;
+                    return;
+                }
+                owner = null;
+            }
+        };
+
+    public ToolkitLock getToolkitLock() {
+        return toolkitLock;
+    }
+}