1 files changed, 134 insertions, 0 deletions
diff --git a/libjava/classpath/java/nio/channels/Selector.java b/libjava/classpath/java/nio/channels/Selector.java
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+++ b/libjava/classpath/java/nio/channels/Selector.java
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+/* Selector.java --
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package java.nio.channels;
+
+import java.io.IOException;
+import java.nio.channels.spi.SelectorProvider;
+import java.util.Set;
+
+
+/**
+ * @author Michael Koch
+ * @since 1.4
+ */
+public abstract class Selector
+{
+  /**
+   * Initializes the selector.
+   */
+  protected Selector()
+  {
+  }
+
+  /**
+   * Opens a selector.
+   *
+   * @exception IOException If an error occurs
+   */
+  public static Selector open() throws IOException
+  {
+    return SelectorProvider.provider().openSelector();
+  }
+
+  /**
+   * Closes the selector.
+   *
+   * @exception IOException If an error occurs
+   */
+  public abstract void close() throws IOException;
+
+  /**
+   * Tells whether the selector is open or not.
+   */
+  public abstract boolean isOpen();
+
+  /**
+   * Returns this selector's key set.
+   *
+   * @exception ClosedSelectorException If this selector is closed.
+   */
+  public abstract Set<SelectionKey> keys();
+
+  /**
+   * Returns the SelectorProvider that created the selector.
+   */
+  public abstract SelectorProvider provider();
+
+  /**
+   * Selects a set of keys whose corresponding channels are ready
+   * for I/O operations.
+   *
+   * @exception ClosedSelectorException If this selector is closed.
+   * @exception IOException If an error occurs
+   */
+  public abstract int select() throws IOException;
+
+  /**
+   * Selects a set of keys whose corresponding channels are ready
+   * for I/O operations.
+   *
+   * @param timeout The timeout to use.
+   *
+   * @exception ClosedSelectorException If this selector is closed.
+   * @exception IllegalArgumentException If the timeout value is negative.
+   * @exception IOException If an error occurs
+   */
+  public abstract int select(long timeout) throws IOException;
+
+  /**
+   * Returns this selector's selected-key set.
+   *
+   * @exception ClosedSelectorException If this selector is closed.
+   */
+  public abstract Set<SelectionKey> selectedKeys();
+
+  /**
+   * Selects a set of keys whose corresponding channels are ready
+   * for I/O operations.
+   *
+   * @exception ClosedSelectorException If this selector is closed.
+   * @exception IOException If an error occurs
+   */
+  public abstract int selectNow() throws IOException;
+
+  /**
+   * Causes the first selection operation that has not yet returned to
+   * return immediately.
+   */
+  public abstract Selector wakeup();
+}