proper import

git-svn-id: https://lsleditor.svn.sourceforge.net/svnroot/lsleditor@9 3f4676ac-adda-40fd-8265-58d1435b1672

trunk/BZip2Decompress/IChecksum.cs

@@ -0,0 +1,93 @@
+// IChecksum.cs - Interface to compute a data checksum
+// Copyright (C) 2001 Mike Krueger
+//
+// This file was translated from java, it was part of the GNU Classpath
+// Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+//
+// This program 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
+// of the License, or (at your option) any later version.
+//
+// This program 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 this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, 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.
+
+namespace LSLEditor.BZip2Decompress
+{
+	
+	/// <summary>
+	/// Interface to compute a data checksum used by checked input/output streams.
+	/// A data checksum can be updated by one byte or with a byte array. After each
+	/// update the value of the current checksum can be returned by calling
+	/// <code>getValue</code>. The complete checksum object can also be reset
+	/// so it can be used again with new data.
+	/// </summary>
+	public interface IChecksum
+	{
+		/// <summary>
+		/// Returns the data checksum computed so far.
+		/// </summary>
+		long Value 
+		{
+			get;
+		}
+		
+		/// <summary>
+		/// Resets the data checksum as if no update was ever called.
+		/// </summary>
+		void Reset();
+		
+		/// <summary>
+		/// Adds one byte to the data checksum.
+		/// </summary>
+		/// <param name = "value">
+		/// the data value to add. The high byte of the int is ignored.
+		/// </param>
+		void Update(int value);
+		
+		/// <summary>
+		/// Updates the data checksum with the bytes taken from the array.
+		/// </summary>
+		/// <param name="buffer">
+		/// buffer an array of bytes
+		/// </param>
+		void Update(byte[] buffer);
+		
+		/// <summary>
+		/// Adds the byte array to the data checksum.
+		/// </summary>
+		/// <param name = "buffer">
+		/// The buffer which contains the data
+		/// </param>
+		/// <param name = "offset">
+		/// The offset in the buffer where the data starts
+		/// </param>
+		/// <param name = "count">
+		/// the number of data bytes to add.
+		/// </param>
+		void Update(byte[] buffer, int offset, int count);
+	}
+}