BufferedStream.Flush Method
Definition
Important
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Clears all buffers for this stream and causes any buffered data to be written to the underlying device.
public:
override void Flush();
public override void Flush ();
override this.Flush : unit -> unit
Public Overrides Sub Flush ()
Exceptions
The stream has been disposed.
The data source or repository is not open.
Examples
This code example is part of a larger example provided for the BufferedStream class.
// Send the data using the BufferedStream.
Console::WriteLine( "Sending data using BufferedStream." );
startTime = DateTime::Now;
for ( int i = 0; i < numberOfLoops; i++ )
{
bufStream->Write( dataToSend, 0, dataToSend->Length );
}
bufStream->Flush();
bufferedTime = (DateTime::Now - startTime).TotalSeconds;
Console::WriteLine( "{0} bytes sent in {1} seconds.\n", (numberOfLoops * dataToSend->Length).ToString(), bufferedTime.ToString( "F1" ) );
// Send the data using the BufferedStream.
Console.WriteLine("Sending data using BufferedStream.");
startTime = DateTime.Now;
for(int i = 0; i < numberOfLoops; i++)
{
bufStream.Write(dataToSend, 0, dataToSend.Length);
}
bufStream.Flush();
bufferedTime = (DateTime.Now - startTime).TotalSeconds;
Console.WriteLine("{0} bytes sent in {1} seconds.\n",
numberOfLoops * dataToSend.Length,
bufferedTime.ToString("F1"));
// Send the data using the BufferedStream.
printfn "Sending data using BufferedStream."
let startTime = DateTime.Now
for _ = 0 to numberOfLoops - 1 do
bufStream.Write(dataToSend, 0, dataToSend.Length)
bufStream.Flush()
let bufferedTime = (DateTime.Now - startTime).TotalSeconds
printfn $"{numberOfLoops * dataToSend.Length} bytes sent in {bufferedTime:F1} seconds.\n"
' Send the data using the BufferedStream.
Console.WriteLine("Sending data using BufferedStream.")
startTime = DateTime.Now
For i As Integer = 1 To numberOfLoops
bufStream.Write(dataToSend, 0, dataToSend.Length)
Next i
bufStream.Flush()
bufferedTime = DateTime.Now.Subtract(startTime).TotalSeconds
Console.WriteLine("{0} bytes sent In {1} seconds." & vbCrLf, _
numberOfLoops * dataToSend.Length, _
bufferedTime.ToString("F1"))
Remarks
Flushing the stream will not flush its underlying encoder unless you explicitly call Flush
or Close.
If you use the BufferedStream constructor, thus specifying the buffer size while creating the BufferedStream
object, the content is flushed when it reaches the buffer size. For example, code such as BufferedStream bs = new BufferedStream(bs, 5)
will flush the content when the buffer size reaches 5 bytes.
All the read and write methods of BufferedStream
automatically maintain the buffer, so there is no need to invoke Flush
when switching back and forth between reading and writing.
Applies to
See also
.NET
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