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September 7, 2015 06:22
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,59 @@ using System; using System.Runtime.InteropServices; namespace Things { public static class LandLordExtensions { public static LandLord<TWrapped> AsDisposable<TWrapped>(this TWrapped tenant) { return new LandLord<TWrapped>(tenant); } } public class LandLord<TWrapped> : IDisposable { public TWrapped Tenant { get; private set; } private bool _disposed; public LandLord(TWrapped tenant) { _disposed = false; Tenant = tenant; } protected virtual void Evict(bool byManagement) { try { if (_disposed) return; if (byManagement) { using (Tenant as IDisposable){} } if (Tenant != null && Marshal.IsComObject(Tenant)) { Marshal.ReleaseComObject(Tenant); Tenant = default(TWrapped); } } finally { _disposed = true; } } public void Dispose() { Evict(byManagement: true); GC.SuppressFinalize(this); } ~LandLord() { Evict(byManagement: false); } } }