1 files changed, 131 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/CORBA/CDR/AligningInput.java b/gcc-4.4.3/libjava/classpath/gnu/CORBA/CDR/AligningInput.java
new file mode 100644
index 000000000..e2710628a
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+++ b/gcc-4.4.3/libjava/classpath/gnu/CORBA/CDR/AligningInput.java
@@ -0,0 +1,131 @@
+/* AligningInput.java --
+   Copyright (C) 2005 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 gnu.CORBA.CDR;
+
+import java.io.ByteArrayInputStream;
+
+import org.omg.CORBA.BAD_PARAM;
+
+/**
+ * The input stream with the possibility to align on the
+ * word (arbitrary size) boundary.
+ *
+ * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
+ */
+public class AligningInput
+  extends ByteArrayInputStream
+{
+  /**
+   * The alignment offset.
+   */
+  private int offset = 0;
+
+  /**
+   * Create a stream, reading form the given buffer.
+   *
+   * @param a_buffer a buffer to read from.
+   */
+  public AligningInput(byte[] a_buffer)
+  {
+    super(a_buffer);
+  }
+
+  /**
+   * Set the alignment offset, if the index of the first byte in the
+   * stream is different from 0.
+   */
+  public void setOffset(int an_offset)
+  {
+    offset = an_offset;
+  }
+
+  /**
+   * Skip several bytes, aligning the internal pointer on the
+   * selected boundary.
+   *
+   * @throws BAD_PARAM, minor code 0, the alignment is not possible,
+   * usually due the wrong parameter value.
+   */
+  public void align(int alignment)
+  {
+    try
+      {
+        int d = (pos + offset) % alignment;
+        if (d > 0)
+          {
+            skip(alignment - d);
+          }
+      }
+    catch (Exception ex)
+      {
+        BAD_PARAM p = new BAD_PARAM("Unable to align at " + alignment);
+        p.initCause(ex);
+        throw p;
+      }
+  }
+
+  /**
+   * Get the byte buffer, from where the data are read.
+   */
+  public byte[] getBuffer()
+  {
+    return buf;
+  }
+  
+  /**
+   * Get the current position in the buffer.
+   * 
+   * @return The position in the buffer, taking offset into consideration.
+   */
+  public int getPosition()
+  {
+    return pos + offset;
+  }  
+  
+  /**
+   * Jump to the given position, taking offset into consideration.
+   */
+  public void seek(int position)
+  {
+    if (position < offset || position > (count+offset))
+      throw new ArrayIndexOutOfBoundsException(position
+        + " is out of valid ["+offset+".." + (count+offset) + "[ range");
+    pos = position - offset;
+  }  
+}