Exemplo n.º 1
0
        public async Task Writing()
        {
            var ms    = new MemoryStream();
            var muxer = new Muxer {
                Channel = ms
            };
            var stream = new Substream {
                Muxer = muxer
            };
            var m1 = new byte[1];

            stream.AddData(new byte[] { 10 });
            Assert.IsTrue(stream.CanRead);
            Assert.IsTrue(stream.CanWrite);

            Assert.AreEqual(1, await stream.ReadAsync(m1, 0, 1));
            await stream.WriteAsync(m1, 0, 1);

            stream.WriteByte(11);
            await stream.FlushAsync();

            ms.Position = 0;
            var header = await Header.ReadAsync(ms);

            var length = await Varint.ReadVarint32Async(ms);

            var payload = new byte[length];

            ms.Read(payload, 0, length);
            Assert.AreEqual(stream.Id, header.StreamId);
            Assert.AreEqual(2, payload.Length);
            CollectionAssert.AreEqual(new byte[] { 10, 11 }, payload);
        }
Exemplo n.º 2
0
        public async Task NewStream_Send()
        {
            var channel = new MemoryStream();
            var muxer   = new Muxer {
                Channel = channel, Initiator = true
            };
            var nextId = muxer.NextStreamId;
            var stream = await muxer.CreateStreamAsync("foo");

            // Correct stream id is assigned.
            Assert.AreEqual(nextId, stream.Id);
            Assert.AreEqual(nextId + 2, muxer.NextStreamId);
            Assert.AreEqual("foo", stream.Name);

            // Substreams are managed.
            Assert.AreEqual(1, muxer.Substreams.Count);
            Assert.AreSame(stream, muxer.Substreams[stream.Id]);

            // NewStream message is sent.
            channel.Position = 0;
            Assert.AreEqual(stream.Id << 3, channel.ReadVarint32());
            Assert.AreEqual(3, channel.ReadVarint32());
            var name = new byte[3];

            channel.Read(name, 0, 3);
            Assert.AreEqual("foo", Encoding.UTF8.GetString(name));
            Assert.AreEqual(channel.Length, channel.Position);
        }
Exemplo n.º 3
0
        public async Task AcquireWrite()
        {
            var muxer = new Muxer();
            var tasks = new List <Task <string> >
            {
                Task <string> .Run(async() =>
                {
                    using (await muxer.AcquireWriteAccessAsync())
                    {
                        await Task.Delay(100);
                    }
                    return("step 1");
                }),
                Task <string> .Run(async() =>
                {
                    using (await muxer.AcquireWriteAccessAsync())
                    {
                        await Task.Delay(50);
                    }
                    return("step 2");
                }),
            };

            var done = await Task.WhenAll(tasks);

            Assert.AreEqual("step 1", done[0]);
            Assert.AreEqual("step 2", done[1]);
        }
Exemplo n.º 4
0
        public void Defaults()
        {
            var muxer = new Muxer();

            Assert.AreEqual(true, muxer.Initiator);
            Assert.AreEqual(false, muxer.Receiver);
        }
Exemplo n.º 5
0
        public async Task CloseStream_Event()
        {
            var channel = new MemoryStream();
            var muxer1  = new Muxer {
                Channel = channel, Initiator = true
            };

            using (var foo = await muxer1.CreateStreamAsync("foo"))
                using (var bar = await muxer1.CreateStreamAsync("bar"))
                {
                    // open and close a stream.
                }

            channel.Position = 0;
            var muxer2 = new Muxer {
                Channel = channel
            };
            int closeCount = 0;

            muxer2.SubstreamClosed += (s, e) =>
            {
                ++closeCount;
            };
            await muxer2.ProcessRequestsAsync();

            Assert.AreEqual(2, closeCount);
        }
Exemplo n.º 6
0
        public void InitiatorReceiver()
        {
            var muxer = new Muxer {
                Initiator = true
            };

            Assert.AreEqual(true, muxer.Initiator);
            Assert.AreEqual(false, muxer.Receiver);
            Assert.AreEqual(0, muxer.NextStreamId & 1);

            muxer.Receiver = true;
            Assert.AreEqual(false, muxer.Initiator);
            Assert.AreEqual(true, muxer.Receiver);
            Assert.AreEqual(1, muxer.NextStreamId & 1);
        }
Exemplo n.º 7
0
        public async Task NewStream_Receive()
        {
            var channel = new MemoryStream();
            var muxer1  = new Muxer {
                Channel = channel, Initiator = true
            };
            var foo = await muxer1.CreateStreamAsync("foo");

            var bar = await muxer1.CreateStreamAsync("bar");

            channel.Position = 0;
            var muxer2 = new Muxer {
                Channel = channel
            };
            int n = 0;

            muxer2.SubstreamCreated += (s, e) => ++ n;
            await muxer2.ProcessRequestsAsync();

            Assert.AreEqual(2, n);
        }
Exemplo n.º 8
0
        public async Task NewStream_AlreadyAssigned()
        {
            var channel = new MemoryStream();
            var muxer1  = new Muxer {
                Channel = channel, Initiator = true
            };
            var foo = await muxer1.CreateStreamAsync("foo");

            var muxer2 = new Muxer {
                Channel = channel, Initiator = true
            };
            var bar = await muxer2.CreateStreamAsync("bar");

            channel.Position = 0;
            var muxer3 = new Muxer {
                Channel = channel
            };
            await muxer3.ProcessRequestsAsync(new CancellationTokenSource(500).Token);

            // The channel is closed because of 2 new streams with same id.
            Assert.IsFalse(channel.CanRead);
            Assert.IsFalse(channel.CanWrite);
        }