Question

public static void ReadWholeArray (Stream stream, byte[] data)
{
    int offset=0;
    int remaining = data.Length;
    while (remaining > 0)
    {
        int read = stream.Read(data, offset, remaining);
        if (read <= 0)
            throw new EndOfStreamException(String.Format("End of stream reached with {0} bytes left to read", remaining));
        remaining -= read;
        offset += read;
     }
}

size of byte array data is 2682
on the first iteration of while loop
the value of read is 1658
on the next iteration
after executing the line

int read = stream.Read(data, offset, remaining);

the program is not responding

what is the problem?

Answer 1

Whatever is providing your stream is blocking until data is available. From MSDN’s docs on Stream.Read:

The implementation will block until at
least one byte of data can be read, in
the event that no data is available.
Read returns 0 only when there is no
more data in the stream and no more is
expected (such as a closed socket or
end of file)

You can set a read timeout on the stream to prevent blocking forever.

As an aside, note that reading from the stream will move the current position, so with your offset logic you may be skipping large chunks of the input stream.