public bool Close()
{
bool result;
this.Flush();
if (result = (this.backend.NotNull() && (this.Wrapped || this.backend.Close())))
this.backend = null;
return result;
}
public static IByteOutDevice Wrap(IBlockOutDevice device)
{
return device.NotNull() ? new BlockByteOutDevice(device) { Wrapped = true } : null;
}
public static IByteOutDevice Open(IBlockOutDevice device)
{
return device.NotNull() ? new BlockByteOutDevice(device) : null;
}
public virtual bool Close()
{
bool result;
if (result = this.inDevice.NotNull() && !this.Wrapped)
{
this.inDevice.Close();
this.inDevice = null;
}
if (this.outDevice.NotNull() && !this.Wrapped)
{
result |= this.outDevice.NotNull();
this.outDevice.Close();
this.outDevice = null;
}
return result;
}
BlockByteOutDevice(IBlockOutDevice backend)
{
this.backend = backend;
}
public static IBlockDevice Wrap(IBlockInDevice inDevice, IBlockOutDevice outDevice)
{
return inDevice.NotNull() || outDevice.NotNull() ? new BlockDeviceCombiner(inDevice, outDevice) { Wrapped = true } : null;
}
protected BlockDeviceCombiner(IBlockInDevice inDevice, IBlockOutDevice outDevice)
{
this.inDevice = inDevice;
this.outDevice = outDevice;
}
public static IBlockDevice Open(IBlockInDevice inDevice, IBlockOutDevice outDevice)
{
return inDevice.NotNull() || outDevice.NotNull() ? new BlockDeviceCombiner(inDevice, outDevice) : null;
}
public static IBlockDevice Wrap(IBlockOutDevice outDevice)
{
return BlockDeviceCombiner.Wrap(null, outDevice);
}
public static IBlockDevice Open(IBlockOutDevice outDevice)
{
return BlockDeviceCombiner.Open(null, outDevice);
}
public static ChunkedBlockOutDevice Open(IBlockOutDevice backend)
{
return backend.NotNull() ? new ChunkedBlockOutDevice(backend) : null;
}
ChunkedBlockOutDevice(IBlockOutDevice backend) :
this((IOutDevice)backend)
{
this.backendWrite = backend.Write;
}
public static ChunkedBlockOutDevice Wrap(IBlockOutDevice backend)
{
return backend.NotNull() ? new ChunkedBlockOutDevice(backend) { Wrapped = true } : null;
}
public static BlockStream Wrap(IBlockOutDevice device)
{
return BlockStream.Wrap(BlockDeviceCombiner.Open(device));
}
