1 files changed, 67 insertions, 0 deletions

diff --git a/src/dtf/WixToolset.Dtf.WindowsInstaller/InstallCost.cs b/src/dtf/WixToolset.Dtf.WindowsInstaller/InstallCost.cs
new file mode 100644
index 00000000..f29612d6
--- /dev/null
+++ b/src/dtf/WixToolset.Dtf.WindowsInstaller/InstallCost.cs
@@ -0,0 +1,67 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Dtf.WindowsInstaller
+{
+    using System.Diagnostics.CodeAnalysis;
+
+    /// <summary>
+    /// Represents a per-drive disk space cost for an installation.
+    /// </summary>
+    [SuppressMessage("Microsoft.Performance", "CA1815:OverrideEqualsAndOperatorEqualsOnValueTypes")]
+    public struct InstallCost
+    {
+        private string driveName;
+        private long cost;
+        private long tempCost;
+
+        /// <summary>
+        /// Creates a new InstallCost object.
+        /// </summary>
+        /// <param name="driveName">name of the drive this cost data applies to</param>
+        /// <param name="cost">installation cost on this drive, as a number of bytes</param>
+        /// <param name="tempCost">temporary disk space required on this drive, as a number of bytes</param>
+        internal InstallCost(string driveName, long cost, long tempCost)
+        {
+            this.driveName = driveName;
+            this.cost = cost;
+            this.tempCost = tempCost;
+        }
+
+        /// <summary>
+        /// The name of the drive this cost data applies to.
+        /// </summary>
+        public string DriveName
+        {
+            get
+            {
+                return this.driveName;
+            }
+        }
+
+        /// <summary>
+        /// The installation cost on this drive, as a number of bytes.
+        /// </summary>
+        public long Cost
+        {
+            get
+            {
+                return this.cost;
+            }
+        }
+
+        /// <summary>
+        /// The temporary disk space required on this drive, as a number of bytes.
+        /// </summary>
+        /// <remarks><p>
+        /// This temporary space requirement is space needed only for the duration
+        /// of the installation, over the final footprint on disk.
+        /// </p></remarks>
+        public long TempCost
+        {
+            get
+            {
+                return this.tempCost;
+            }
+        }
+    }
+}