private async Task <MyCatSession> CreateSessionAsync(IOBehavior ioBehavior, CancellationToken cancellationToken)
{
var connectTimeout = m_connectionSettings.ConnectionTimeout == 0 ? Timeout.InfiniteTimeSpan : TimeSpan.FromSeconds(checked ((int)m_connectionSettings.ConnectionTimeout));
using (var timeoutSource = new CancellationTokenSource(connectTimeout))
using (var linkedSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, timeoutSource.Token))
{
try
{
// get existing session from the pool if possible
if (m_connectionSettings.Pooling)
{
var pool = ConnectionPool.GetPool(m_connectionSettings);
// this returns an open session
return(await pool.GetSessionAsync(ioBehavior, linkedSource.Token).ConfigureAwait(false));
}
else
{
var session = new MyCatSession();
await session.ConnectAsync(m_connectionSettings, ioBehavior, linkedSource.Token).ConfigureAwait(false);
return(session);
}
}
catch (OperationCanceledException ex) when(timeoutSource.IsCancellationRequested)
{
throw new MyCatException("Connect Timeout expired.", ex);
}
}
}
private static async Task ClearPoolAsync(MyCatConnection connection, IOBehavior ioBehavior, CancellationToken cancellationToken)
{
if (connection == null)
{
throw new ArgumentNullException(nameof(connection));
}
var pool = ConnectionPool.GetPool(connection.m_connectionSettings);
if (pool != null)
{
await pool.ClearAsync(ioBehavior, cancellationToken).ConfigureAwait(false);
}
}