private int WriteByte(byte[] buffer, int offset, WriteBuffer writeBuffer)
{
var currentByte = buffer[offset];
if (this.previousWasEscapeByte)
{
this.previousWasEscapeByte = false;
++offset;
}
else
{
if (currentByte == Command.InterpretAsCommand)
{
this.previousWasEscapeByte = true;
}
else
{
++offset;
}
}
writeBuffer[writeBuffer.Count++] = currentByte;
return(offset);
}
internal MyBufferStream(ReadBuffer readBuffer, WriteBuffer writeBuffer)
: base(readBuffer, writeBuffer)
{
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>Initializes a new instance of the <see cref="BufferStream"/> class.</summary>
/// <remarks>Pass <c>null</c> for one of the buffers to create a stream that only supports reading or writing.</remarks>
protected BufferStream(ReadBuffer readBuffer, WriteBuffer writeBuffer)
{
this.ReadBuffer = readBuffer;
this.WriteBuffer = writeBuffer;
}
public void WriteAsyncTest()
{
AsyncPump.Run(
async () =>
{
var bytes = new byte[2];
this.Random.NextBytes(bytes);
// This covers the case where the written bytes are copied into the buffer in two chunks
using (var stream = new MemoryStream())
{
var writeBuffer = new WriteBuffer(stream.WriteAsync, 1);
await writeBuffer.WriteAsync(bytes, 0, bytes.Length, CancellationToken.None);
await writeBuffer.FlushAsync(CancellationToken.None);
CollectionAssert.AreEqual(bytes, stream.ToArray());
}
});
}
public void ExceptionTest()
{
AsyncPump.Run(
async () =>
{
AssertThrow<ArgumentNullException>(
() => new ReadBuffer((ReadCallback)null, 1).Ignore(),
() => new ReadBuffer((ReadAsyncCallback)null, 1).Ignore(),
() => new WriteBuffer((WriteCallback)null, 1).Ignore(),
() => new WriteBuffer((WriteAsyncCallback)null, 1).Ignore(),
() => new WriteBuffer((b, o, c) => { }, 1).WriteAsUtf8(null, 0));
AssertThrow<ArgumentOutOfRangeException>(() => new ReadBuffer((b, o, c) => 0, 0).Ignore());
using (var stream = new MemoryStream())
{
var readBuffer = new ReadBuffer(stream.Read, 1);
AssertThrow<EndOfStreamException>(
() => readBuffer.Fill(new byte[1], 0, 1),
() => readBuffer.Fill(new byte[2], 0, 2));
await AssertThrowAsync<InvalidOperationException>(
() => readBuffer.ReadAsync(CancellationToken.None),
() => readBuffer.ReadAsync(new byte[1], 0, 1, CancellationToken.None),
() => readBuffer.FillAsync(1, CancellationToken.None),
() => readBuffer.FillAsync(new byte[1], 0, 1, CancellationToken.None));
var asyncReadBuffer = new ReadBuffer((ReadAsyncCallback)stream.ReadAsync, 1);
await AssertThrowAsync<EndOfStreamException>(
() => asyncReadBuffer.FillAsync(new byte[1], 0, 1, CancellationToken.None),
() => asyncReadBuffer.FillAsync(new byte[2], 0, 2, CancellationToken.None));
AssertThrow<InvalidOperationException>(
() => asyncReadBuffer.Read(),
() => asyncReadBuffer.Read(new byte[1], 0, 1),
() => asyncReadBuffer.Fill(1),
() => asyncReadBuffer.Fill(new byte[1], 0, 1),
() => asyncReadBuffer.ReadUtf8(1));
var writeBuffer = new WriteBuffer(stream.Write, 1);
await AssertThrowAsync<InvalidOperationException>(
() => writeBuffer.FlushAsync(CancellationToken.None),
() => writeBuffer.ReserveAsync(2, CancellationToken.None),
() => writeBuffer.WriteAsync(new byte[3], 0, 3, CancellationToken.None));
var asyncWriteBuffer = new WriteBuffer(stream.WriteAsync, 1);
asyncWriteBuffer[asyncWriteBuffer.Count++] = 42;
AssertThrow<InvalidOperationException>(() => asyncWriteBuffer.Flush());
asyncWriteBuffer[asyncWriteBuffer.Count++] = 42;
AssertThrow<InvalidOperationException>(
() => asyncWriteBuffer.Reserve(2), () => asyncWriteBuffer.Write(new byte[3], 0, 3));
asyncWriteBuffer[asyncWriteBuffer.Count++] = 42;
var str = "Hello";
AssertThrow<InvalidOperationException>(
() => asyncWriteBuffer.WriteAsUtf8(str, Encoding.UTF8.GetByteCount(str)));
}
});
}
public void WriteTest()
{
var originalBytes = new byte[2];
this.Random.NextBytes(originalBytes);
// This covers the case where the written bytes are copied into the buffer in two chunks
using (var stream = new MemoryStream())
{
var writeBuffer = new WriteBuffer(stream.Write, 1);
writeBuffer.Write(originalBytes, 0, originalBytes.Length);
writeBuffer.Flush();
CollectionAssert.AreEqual(originalBytes, stream.ToArray());
}
}
internal MyBufferStream(ReadBuffer readBuffer, WriteBuffer writeBuffer)
: base(readBuffer, writeBuffer)
{
}
protected override void Dispose(bool disposing)
{
try
{
if (disposing && !this.IsDisposed)
{
this.Flush();
}
}
catch
{
}
finally
{
this.ReadBuffer = null;
this.WriteBuffer = null;
base.Dispose(disposing);
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>Initializes a new instance of the <see cref="BufferStream"/> class.</summary>
/// <remarks>Pass <c>null</c> for one of the buffers to create a stream that only supports reading or writing.</remarks>
protected BufferStream(ReadBuffer readBuffer, WriteBuffer writeBuffer)
{
this.ReadBuffer = readBuffer;
this.WriteBuffer = writeBuffer;
}
private int WriteByte(byte[] buffer, int offset, WriteBuffer writeBuffer)
{
var currentByte = buffer[offset];
if (this.previousWasEscapeByte)
{
this.previousWasEscapeByte = false;
++offset;
}
else
{
if (currentByte == Command.InterpretAsCommand)
{
this.previousWasEscapeByte = true;
}
else
{
++offset;
}
}
writeBuffer[writeBuffer.Count++] = currentByte;
return offset;
}