/// <summary>
/// Method ensures that the protocolInfo for a PrepareForConnection request
/// matches up correctly with a supported protocol on the device.
/// The check is a trivial check and nothing more.
/// <see cref="MediaServerDevice.SinkCm_PrepareForConnection"/>
/// will do additional checks to ensure that the entire request is correct.
/// </summary>
/// <param name="protInfo">protocolInfo string proposed in the request</param>
/// <param name="dir">direction of the stream, relative to the server</param>
private void ValidateConnectionRequest(ProtocolInfoString protInfo, DvConnectionManager.Enum_A_ARG_TYPE_Direction dir)
{
bool incompatibleProtocol = true;
// Grab the correct protocolInfo set, depending on whether
// the stream is supposed to be a source or a sink.
ArrayList al;
if (dir == DvConnectionManager.Enum_A_ARG_TYPE_Direction.INPUT)
{
al = this.m_SinkProtocolInfoSet;
}
else if (dir == DvConnectionManager.Enum_A_ARG_TYPE_Direction.OUTPUT)
{
al = this.m_SourceProtocolInfoSet;
}
else
{
throw new Error_InvalidDirection("");
}
// Compare the requested protocol info string against the
// list of available ones.
//
foreach (ProtocolInfoString prot in al)
{
if (protInfo.Matches(prot))
{
incompatibleProtocol = false;
break;
}
}
if (incompatibleProtocol)
{
throw new Error_IncompatibleProtocolInfo("("+protInfo.ToString()+")");
}
}
