Lucene.Net.Store.MMapDirectory.OpenInput C# (CSharp) Method

        public override IndexInput OpenInput(string name, IOContext context)
        {
            EnsureOpen();
            var file = new FileInfo(Path.Combine(Directory.FullName, name));

            var c = new FileStream(file.FullName, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);

            return new MMapIndexInput(this, "MMapIndexInput(path=\"" + file + "\")", c);
        }

        public virtual void TestCloneClose()
        {
            MMapDirectory mmapDir = new MMapDirectory(CreateTempDir("testCloneClose"));
            IndexOutput   io      = mmapDir.CreateOutput("bytes", NewIOContext(Random()));

            io.WriteVInt32(5);
            io.Dispose();
            IndexInput one   = mmapDir.OpenInput("bytes", IOContext.DEFAULT);
            IndexInput two   = (IndexInput)one.Clone();
            IndexInput three = (IndexInput)two.Clone(); // clone of clone

            two.Dispose();
            Assert.AreEqual(5, one.ReadVInt32());
            try
            {
                two.ReadVInt32();
                Assert.Fail("Must throw ObjectDisposedException");
            }
#pragma warning disable 168
            catch (ObjectDisposedException ignore)
#pragma warning restore 168
            {
                // pass
            }
            Assert.AreEqual(5, three.ReadVInt32());
            one.Dispose();
            three.Dispose();
            mmapDir.Dispose();
        }