2003-10-12 Michael Koch <konqueror@gmx.de>

* gnu/java/nio/PipeImpl.java
	(SourceChannelImpl): New inner class.
	(SinkChannelImpl): New inner class.
	(sink): New member variable.
	(source): New member variable.
	(PipeImpl): Add SelectorProvider argument, implemented.
	(nativeInit): New method.
	(sink): Return sink channel.
	(source): Return source channel.
	* gnu/java/nio/SelectorProviderImpl.java
	(openPipe): Give provider as argument to PipeImpl constructor.
	* java/nio/channels/spi/SelectorProvider.java
	(pr): Removed.
	(systemDefaultProvider): New member variable.
	(provider): Made it synchronized, use property
	java.nio.channels.spi.SelectorProvider.
	* gnu/java/nio/natPipeImpl.cc: New file.
	* Makefile.am (nat_source_files): Added gnu/java/nio/natPipeImpl.cc.
	* Makefile.in: Regenerated.

From-SVN: r72397

libjava/java/nio/channels/spi/SelectorProvider.java

@@ -1,5 +1,5 @@
 /* SelectorProvider.java
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -50,7 +50,7 @@ import java.nio.channels.SocketChannel;
  */
 public abstract class SelectorProvider
 {
-  static SelectorProvider pr;
+  private static SelectorProvider systemDefaultProvider;
     
   /**
    * Initializes the selector provider.
@@ -95,13 +95,32 @@ public abstract class SelectorProvider
    * Returns the system-wide default selector provider for this invocation
    * of the Java virtual machine.
    */
-  public static SelectorProvider provider ()
+  public static synchronized SelectorProvider provider ()
   {
-    if (pr == null)
+    if (systemDefaultProvider == null)
       {
-        pr = new SelectorProviderImpl ();
+        String propertyValue =
+          System.getProperty ("java.nio.channels.spi.SelectorProvider");
+
+        if (propertyValue == null
+            || propertyValue.equals (""))
+          systemDefaultProvider = new SelectorProviderImpl();
+        else
+          {
+            try
+              {
+                systemDefaultProvider = (SelectorProvider) Class.forName
+                  (propertyValue).newInstance();
+              }
+            catch (Exception e)
+              {
+                System.err.println ("Could not instantiate class: "
+                                    + propertyValue);
+                systemDefaultProvider = new SelectorProviderImpl();
+              }
+          }
       }
     
-    return pr;
+    return systemDefaultProvider;
   }
 }