public async Task <OsmHeader> ReadHeader()
{
await reader.BeginReadMessageAsync(length);
var header = new OsmHeader();
while (reader.State == ProtobufReaderState.Field)
{
switch (reader.FieldNumber)
{
case 1:
header.BoundBox = await ParseBoundBoxAsync();
break;
case 4:
header.RequiredFeatures = await reader.ReadStringAsync();
break;
case 5:
header.OptionalFeatures = await reader.ReadStringAsync();
break;
case 16:
header.WritingProgram = await reader.ReadStringAsync();
break;
case 17:
header.Source = await reader.ReadStringAsync();
break;
default:
await reader.SkipAsync();
break;
}
}
await reader.EndReadMessageAsync();
return(header);
}
public async Task <T> ReadMessageAsync(ProtobufReader reader, long size)
{
var message = new T();
await reader.BeginReadMessageAsync(size);
await ReadMessagePropertiesAsync(reader, message);
await reader.EndReadMessageAsync();
return(message);
}