Initial commit - WPinternals 2.6

DiscUtils/ChsAddress.cs

@@ -0,0 +1,112 @@
+//
+// Copyright (c) 2008-2011, Kenneth Bell
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+namespace DiscUtils
+{
+    /// <summary>
+    /// Class whose instances represent a CHS (Cylinder, Head, Sector) address on a disk.
+    /// </summary>
+    /// <remarks>Instances of this class are immutable.</remarks>
+    public sealed class ChsAddress
+    {
+        /// <summary>
+        /// The address of the first sector on any disk.
+        /// </summary>
+        public static readonly ChsAddress First = new ChsAddress(0, 0, 1);
+
+        private int _cylinder;
+        private int _head;
+        private int _sector;
+
+        /// <summary>
+        /// Initializes a new instance of the ChsAddress class.
+        /// </summary>
+        /// <param name="cylinder">The number of cylinders of the disk.</param>
+        /// <param name="head">The number of heads (aka platters) of the disk.</param>
+        /// <param name="sector">The number of sectors per track/cylinder of the disk.</param>
+        public ChsAddress(int cylinder, int head, int sector)
+        {
+            _cylinder = cylinder;
+            _head = head;
+            _sector = sector;
+        }
+
+        /// <summary>
+        /// Gets the cylinder number (zero-based).
+        /// </summary>
+        public int Cylinder
+        {
+            get { return _cylinder; }
+        }
+
+        /// <summary>
+        /// Gets the head (zero-based).
+        /// </summary>
+        public int Head
+        {
+            get { return _head; }
+        }
+
+        /// <summary>
+        /// Gets the sector number (one-based).
+        /// </summary>
+        public int Sector
+        {
+            get { return _sector; }
+        }
+
+        /// <summary>
+        /// Determines if this object is equivalent to another.
+        /// </summary>
+        /// <param name="obj">The object to test against.</param>
+        /// <returns><c>true</c> if the <paramref name="obj"/> is equivalent, else <c>false</c>.</returns>
+        public override bool Equals(object obj)
+        {
+            if (obj == null || obj.GetType() != GetType())
+            {
+                return false;
+            }
+
+            ChsAddress other = (ChsAddress)obj;
+
+            return _cylinder == other._cylinder && _head == other._head && _sector == other._sector;
+        }
+
+        /// <summary>
+        /// Calculates the hash code for this object.
+        /// </summary>
+        /// <returns>The hash code.</returns>
+        public override int GetHashCode()
+        {
+            return _cylinder.GetHashCode() ^ _head.GetHashCode() ^ _sector.GetHashCode();
+        }
+
+        /// <summary>
+        /// Gets a string representation of this object, in the form (C/H/S).
+        /// </summary>
+        /// <returns>The string representation.</returns>
+        public override string ToString()
+        {
+            return "(" + _cylinder + "/" + _head + "/" + _sector + ")";
+        }
+    }
+}