/// <summary>
/// Creates and initializes a new asynchronous copy operation.
/// </summary>
/// <param name="src">The source stream.</param>
/// <param name="dest">The destination stream.</param>
/// <param name="state">An ExecutionState used to coordinate copy operation.</param>
/// <param name="bufferManager">IBufferManager instance to use. May be null.</param>
/// <param name="buffSize">Size of read and write buffers used to move data. Overrides the default buffer size of bufferManager.</param>
/// <param name="calculateMd5">Boolean value indicating whether the MD-5 should be calculated.</param>
/// <param name="streamCopyState">An object that represents the state for the current operation.</param>
public AsyncStreamCopier(Stream src, Stream dest, ExecutionState <T> state, IBufferManager bufferManager, int?buffSize, bool calculateMd5, StreamDescriptor streamCopyState)
{
this.src = src;
this.dest = dest;
this.state = state;
this.bufferManager = bufferManager;
this.buffSize = buffSize ?? (bufferManager != null ? bufferManager.GetDefaultBufferSize() : Constants.DefaultBufferSize);
this.streamCopyState = streamCopyState;
if (streamCopyState != null && calculateMd5 && streamCopyState.Md5HashRef == null)
{
streamCopyState.Md5HashRef = new MD5Wrapper();
}
}
/// <summary>
/// Creates and initializes a new asynchronous copy operation.
/// </summary>
/// <param name="src">The source stream.</param>
/// <param name="dest">The destination stream.</param>
/// <param name="state">An ExecutionState used to coordinate copy operation.</param>
/// <param name="bufferManager">IBufferManager instance to use. May be null.</param>
/// <param name="buffSize">Size of read and write buffers used to move data. Overrides the default buffer size of bufferManager.</param>
/// <param name="calculateChecksum">A value indicating whether the checksums should be calculated.</param>
/// <param name="streamCopyState">An object that represents the state for the current operation.</param>
public AsyncStreamCopier(Stream src, Stream dest, ExecutionState <T> state, IBufferManager bufferManager, int?buffSize, ChecksumRequested calculateChecksum, StreamDescriptor streamCopyState)
{
this.src = src;
this.dest = dest;
this.state = state;
this.bufferManager = bufferManager;
this.buffSize = buffSize ?? (bufferManager != null ? bufferManager.GetDefaultBufferSize() : Constants.DefaultBufferSize);
this.streamCopyState = streamCopyState;
if (streamCopyState != null && calculateChecksum.HasAny && streamCopyState.ChecksumWrapper == null)
{
streamCopyState.ChecksumWrapper = new ChecksumWrapper(calculateChecksum.MD5, calculateChecksum.CRC64);
}
}