/// <summary>
/// Attempts to read a whole message from fromstream
/// </summary>
/// <param name="fromstream"></param>
/// <returns></returns>
public static void ReadStreamToMessageStream(MemoryBuffer fromstream, out ChatMessage message)
{
message = null;
//check that we have at least 4 bytes in the buffer, it contains the length of the message
if (fromstream.Length > 4)
{
byte[] lenbuf = new byte[4];
var peeklen = fromstream.Peek(lenbuf, 0, lenbuf.Length);
if (peeklen == 4)
{
//check that we have the whole message in the buffer
var messagelength = BitConverter.ToInt32(lenbuf, 0);
if (fromstream.Length >= messagelength + 4)
{
var messagebuffer = new byte[messagelength];
//clear the length from the buffer
fromstream.Read(lenbuf, 0, lenbuf.Length);
//read the message from the buffer
fromstream.Read(messagebuffer, 0, messagelength);
var messagestream = new MemoryStream(messagebuffer, 0, messagelength);
message = DecodeMessage(messagestream);
}
}
}
}
/// <summary>
/// Attempts to read a whole message from fromstream
/// </summary>
/// <param name="fromstream"></param>
/// <returns></returns>
public static void ReadStreamToMessageStream(MemoryBuffer fromstream, out ChatMessage message)
{
message = null;
//check that we have at least 4 bytes in the buffer, it contains the length of the message
if (fromstream.Length > 4)
{
byte[] lenbuf = new byte[4];
var peeklen = fromstream.Peek(lenbuf, 0, lenbuf.Length);
if (peeklen == 4)
{
//check that we have the whole message in the buffer
var messagelength = BitConverter.ToInt32(lenbuf, 0);
if (fromstream.Length >= messagelength + 4)
{
var messagebuffer = new byte[messagelength];
//clear the length from the buffer
fromstream.Read(lenbuf, 0, lenbuf.Length);
//read the message from the buffer
fromstream.Read(messagebuffer, 0, messagelength);
var messagestream = new MemoryStream(messagebuffer, 0, messagelength);
message = DecodeMessage(messagestream);
}
}
}
}
public void ReadWritePeekMultiplTest()
{
MemoryBuffer target = new MemoryBuffer(251);
byte[] buffer = new byte[10];
for (byte i = 0; i < buffer.Length; i++)
buffer[i] = i;
for (byte i = 0; i < 50; i++)
{
target.Write(buffer, 0, buffer.Length);
var tempbuf = new byte[10];
var peekbuf = new byte[10];
var peekcount = target.Peek(peekbuf, 0, peekbuf.Length);
CollectionAssert.AreEqual(buffer, peekbuf, "Peek not equal output");
var readcount = target.Read(tempbuf, 0, tempbuf.Length / 2);
readcount += target.Read(tempbuf, tempbuf.Length / 2, tempbuf.Length / 2);
CollectionAssert.AreEqual(peekbuf, tempbuf, "Peek not equal Read");
CollectionAssert.AreEqual(buffer, tempbuf, "Input not equal output");
Assert.AreEqual(tempbuf.Length, readcount, "Read count is not write count");
Assert.AreEqual(peekcount, readcount, "Read count is not Peek count");
}
}
