private async Task<Command> WaitForCommand(DataReader reader)
{
// Wait for a new message, here we wait for enough data to represent the string size
// if we don't get all of the data, the socket was closed.
UInt32 sizeFieldCount = await reader.LoadAsync(sizeof(UInt32));
if (sizeFieldCount != sizeof(uint))
{
// We didn't get it all, the socket is closed.
throw new Exception("Socket closed");
}
// Read the string.
uint stringLength = reader.ReadUInt32();
uint actualStringLength = await reader.LoadAsync(stringLength);
if (stringLength != actualStringLength)
{
// The underlying socket was closed before we were able to read the whole data.
throw new Exception("Socket closed");
}
// Get the actual string
string commandString = reader.ReadString(actualStringLength);
// Parse the command
return Newtonsoft.Json.JsonConvert.DeserializeObject<Command>(commandString);
}
