private async Task <CursorBatch <TDocument> > GetNextBatchAsync(CancellationToken cancellationToken)
{
using (var channel = await _channelSource.GetChannelAsync(cancellationToken).ConfigureAwait(false))
{
return(await ExecuteGetMoreProtocolAsync(channel, cancellationToken).ConfigureAwait(false));
}
}
private async Task <CursorBatch <TDocument> > GetNextBatchAsync(CancellationToken cancellationToken)
{
using (EventContext.BeginOperation(_operationId))
using (var channel = await _channelSource.GetChannelAsync(cancellationToken).ConfigureAwait(false))
{
return(await ExecuteGetMoreCommandAsync(channel, cancellationToken).ConfigureAwait(false));
}
}
private async Task <CursorBatch <TDocument> > GetNextBatchAsync(CancellationToken cancellationToken)
{
using (EventContext.BeginOperation(_operationId))
using (var channel = await _channelSource.GetChannelAsync(cancellationToken).ConfigureAwait(false))
{
if (Feature.FindCommand.IsSupported(channel.ConnectionDescription.ServerVersion))
{
return(await ExecuteGetMoreCommandAsync(channel, cancellationToken).ConfigureAwait(false));
}
else
{
return(await ExecuteGetMoreProtocolAsync(channel, cancellationToken).ConfigureAwait(false));
}
}
}
/// <summary>
/// Executes the protocol.
/// </summary>
/// <param name="channelSource">The channel source.</param>
/// <param name="readPreference">The read preference.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A Task whose result is the command result.</returns>
protected async Task <TCommandResult> ExecuteProtocolAsync(
IChannelSource channelSource,
ReadPreference readPreference,
CancellationToken cancellationToken)
{
using (var channel = await channelSource.GetChannelAsync(cancellationToken).ConfigureAwait(false))
{
return(await ExecuteProtocolAsync(channel, channelSource.ServerDescription, readPreference, cancellationToken).ConfigureAwait(false));
}
}
// static methods
public static IChannelHandle GetChannel(this IChannelSource channelSource, CancellationToken cancellationToken = default(CancellationToken))
{
return(channelSource.GetChannelAsync(cancellationToken).GetAwaiter().GetResult());
}
